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1.
Article in English | LILACS-Express | LILACS | ID: biblio-1385896

ABSTRACT

ABSTRACT: The most widely used method to classify prognostic factors in cancers today is TNM. However, Oral Squamous Cell Carcinoma (OSCC) often demonstrates different behaviors in relation to aggressiveness and therapeutic response at the same TNM stage. So, in such cases biomarkers can be used to identify the biological diversity of these tumors more reliably, leading to better therapeutic strategies and disease management. The presence of inflammatory immune cells in the tumor microenvironment can have pro or antitumor effects and the investigation of the expression of inflammatory markers in OSSC can be usefulto design immunotherapeutic interventions. The Transforming Growth Factor alpha is a potent stimulator of cell migration that acts on cell proliferation, invasion and metastasis of cancer, as well as immune suppression and angiogenesis. Inflammatory cytokines, such as Interferon-gamma, mediate macrophage differentiation. Macrophages are an important component of the OSCC microenvironment. The greater amount of tumor-associated macrophages, especially the M2 phenotype, may be associated with a more aggressive biological behavior of the OSCC and, consequently, with reduced survival.


RESUMEN: El método más utilizado para clasificar los factores de pronóstico en los cánceres en la actualidad es TNM. Sin embargo, el carcinoma oral de células escamosas (COCE) a menudo muestra diferentes comportamientos en relación con la agresividad y la respuesta terapéutica en la misma etapa TNM. Entonces, en tales casos, los biomarcadores pueden usarse para identificar la diversidad biológica de estos tumores de manera más confiable, lo que lleva a mejores estrategias terapéuticas y manejo de la enfermedad. La presencia de células inmunes inflamatorias en el microambiente tumoral puede tener efectos pro o antitumorales y la investigación de la expresión de marcadores inflamatorios en COCE puede ser útil para diseñar intervenciones inmunoterapéuticas. El factor de crecimiento transformante α es un potente estimulador de la migración celular que actúa sobre la proliferación celular, la invasión y metástasis del cáncer, así como la inmunosupresión y la angiogénesis. Las citocinas inflamatorias, como el IFN-γ, median en la diferenciación de macrófagos. Los macrófagos son un componente importante del microambiente COCE. La mayor cantidad de macrófagos asociados a tumores, especialmente el fenotipo M2, puede estar asociada a un comportamiento biológico más agresivo del COCE y, en consecuencia, a una menor supervivencia.

2.
Article in Chinese | WPRIM | ID: wpr-928673

ABSTRACT

OBJECTIVE@#To analyze the expression and clinical characteristics of CD68 in bone marrow and peripheral blood of patients with acute myeloid leukemia (AML).@*METHODS@#The expression of CD68 in bone marrow blast cells was detected by four-color flow cytometry in 50 newly diagnosed AML patients and 23 controls. The expression of CD68 in peripheral blood of 85 newly diagnosed AML patients, 29 remission AML patients and 24 controls was detected by ELISA. The correlation between the expression rate of non-M3 AML bone marrow CD68, peripheral blood CD68 concentration and white blood cell count and other clinical data was compared respectively.@*RESULTS@#The median CD68 expression rate in myeloid leukemia cells of non-M3 AML patients was 19.7%, significantly higher than control (0.2%) (P<0.001). The median concentration of non-M3 CD68 in peripheral blood was 67.97 pg/ml, significantly higher than in control (29.94 pg/ml)(P<0.01). There was no statistically significant difference in the plasma CD68 concentration of the peripheral blood between the newly diagnosed (45.72 pg/ml) and the remission stage (55.12 pg/ml) of non-M3 AML patients by paired analysis (P>0.05). The results showed that the higher the expression rate of CD68 in bone marrow, the higher the count of white blood cells in peripheral blood, and the lower the count of hemoglobin and platelet in peripheral blood. The higher the plasma concentration of CD68 in peripheral blood, the higher the white blood cell count and the lower the complete remission rate.@*CONCLUSION@#The expression of CD68 both in bone marrow and peripheral blood of patients with non-M3 AML is higher than that of control group. Patients with high expression of CD68 show a low rate of complete remission, suggesting that the expression level of CD68 is correlated with treatment response.


Subject(s)
Bone Marrow , Flow Cytometry , Humans , Leukemia, Myeloid, Acute , Leukocytes , Prognosis , Remission Induction
3.
Article in Chinese | WPRIM | ID: wpr-905900

ABSTRACT

Objective:To illustrate the effect of M1/M2 polarization of macrophages on gouty arthritis models induced with monosodium urate and reveal the molecular mechanism of total saponins from Dioscoreae Nipponicae Rhizoma to treat gouty arthritis. Method:A total of 72 male SD rats were randomly divided into four groups: normal group, model group, total saponin group (160 mg·kg<sup>-1</sup>), celecoxib group (43.3 mg·kg<sup>-1</sup>), with 18 rats in each group. Gouty arthritis models were induced by injecting monosodium urate into ankle joints bilaterally. Histopathology changes of ankle joints were observed by hematoxylin-eosin(HE) staining. Immunohistochemistry method was used to detect the protein expression change of CD68, interleukin-4(IL-4), inducible nitric oxide synthase (iNOS) and transforming growth factor-<italic>β</italic><sub>1</sub>(TGF-<italic>β</italic><sub>1</sub>). Result:HE staining results showed that the inflammation of the model group was most obvious on the third day after modeling, and the disease was in the acute stage. On day 5, the inflammation was alleviated, and on day 8, the inflammation was still present but close to normal. The total saponin group and celecoxib group could improve the pathological changes of synovial tissue, and the effect of total saponin group was more obvious. Immunohistochemical results were as follows. Compared with the normal group. The expression of CD68 and iNOS in the model group increased on the 3rd,5th and 8th day of administration (<italic>P</italic><0.01). Compared with the model group, the total saponins group could reduce the expression of CD68 and iNOS (<italic>P</italic><0.05,<italic>P</italic><0.01)on the 3rd day of administration, and significantly reduced them expression on the 5th and 8th days (<italic>P</italic><0.01). Compared with the normal group, IL-4 and TGF-<italic>β</italic><sub>1</sub> expression were increased in the model group when the drug was given for three days(<italic>P</italic><0.01). Total saponin group could enhance IL-4 expression(<italic>P</italic><0.05)and decreased the TGF-<italic>β</italic><sub>1</sub> expression(<italic>P</italic><0.01). Compared with normal group, the expression of IL-4 in the model group decreased on the 5th and 8th day of administration (<italic>P</italic><0.01), and the expression of TGF-<italic>β</italic><sub>1</sub> in the model group decreased on the 5th day of administration(<italic>P</italic><0.01). Compared with the model group, the total saponins group could increase the expression of IL-4 and TGF-<italic>β</italic><sub>1</sub> at 5 d and 8 d after administration (<italic>P</italic><0.01). Conclusion:Total saponins from Dioscoreae Nipponicae Rhizoma has the potential effect to treat gouty arthritis by regulating M1/M2 polarization.

4.
Int. j. morphol ; 38(6): 1539-1543, Dec. 2020. tab, graf
Article in English | LILACS | ID: biblio-1134474

ABSTRACT

SUMMARY: Meniscus tear is an important injury affecting the quality of life. This work is aimed to investigate the activity of CD68 and ADAMTS-5 in cells in synovial fluid in male and female patients with meniscal tear. In this study ,18 male and 22 female patients with meniscal tears were included. Local pain sensation during patients' physical examination, swelling, performing daily activities and difficulty in running-walking complaints were determined. 5 cc synovial fluids were aspirated from the lateral suprapatellar pouch part of the knees with meniscal pain. After routine histological follow-up of the samples, they were embedded in paraffin and sectioned with microtome and 5 micrometer thickness. CD68 and ADAMTS-5 primary antibodies were used for immunohistochemical analysis. Sections were taken and evaluated with a stylish microscope. The distribution of blood cells after meniscus tear was higher in female patients than in male patients. CD68 distribution in female patients appeared higher than in male patients. CD68 expression was high in macrophage cell cytoplasm. ADAMTS-5 expression was higher in female patients in degenerative cells and apoptotic cells. ADAMTS-5 is an important metallo-protein involved in the development of apoptotic signal and extracellular matrix synthesis in patients with ADAMTS-5 meniscus tear, and it may be an important criterion for the treatment developed after injury. CD68 and ADAMTS-5 activity was thought to be one of the important signal pathways that can be identified in the treatment of meniscus tear.


RESUMEN: La rotura del menisco es una lesión importante que afecta la calidad de vida. El objetivo fue investigar la actividad de CD68 y ADAMTS-5 en células del líquido sinovial en pacientes masculinos y femeninos con desgarro meniscal. Se incluyeron 18 pacientes masculinos y 22 femeninos con desgarros meniscales. Se determinó la sensación de dolor local durante el examen físico de los pacientes, la hinchazón, la realización de actividades diarias y la dificultad al correr y caminar. Se aspiraron 5 cc de líquido sinoviale de la parte de la bolsa suprapatelar lateral de las rodillas de los pacientes con dolor meniscal. Después del seguimiento histológico de rutina, las muestras se incluyeron en parafina y se seccionaron con un micrótomo de grosor de 5 micrómetros. Para el análisis inmunohistoquímico se usaron los anticuerpos primarios CD68 y ADAMTS-5. La distribución de las células sanguíneas después del desgarro del menisco fue mayor en pacientes femeninos que en pacientes masculinos. La distribución de CD68 en pacientes femeninos fue más alta que en pacientes masculinos. Además la expresión de CD68 fue alta en el citoplasma de los macrófagos. La expresión de ADAMTS-5 fue mayor en pacientes femeninos en las células degenerativas y células apoptóticas. ADAMTS-5 es una metaloproteína importante en el desarrollo de la señal apoptótica y la síntesis de matriz extracelular en pacientes con rotura de menisco ADAMTS-5, y puede ser un criterio importante para el tratamiento después de la lesión. La actividad de CD68 y ADAMTS-5 era una de las vías de señal importantes que se pueden identificar en el tratamiento de la rotura del menisco.


Subject(s)
Humans , Male , Female , Tibial Meniscus Injuries/metabolism , Tibial Meniscus Injuries/pathology , Knee Joint/metabolism , Knee Joint/pathology , Synovial Fluid/chemistry , Immunohistochemistry , Antigens, CD/analysis , Synoviocytes/metabolism , ADAMTS5 Protein/analysis , Knee Joint/cytology
5.
Int. j. morphol ; 38(6): 1767-1778, Dec. 2020. tab, graf
Article in English | LILACS | ID: biblio-1134510

ABSTRACT

SUMMARY: Acrylamide (ACR) is a cytotoxic and carcinogenic material. It is a product of a Maillard reaction during the cooking of many types of fried fast food, e.g. potato chip fries, and chicken nuggets. ACR has a severe toxic effect on different body organs. This study investigates the hepatotoxic effect of ACR, and the protective effect of ascorbic acid and silymarin. For this purpose, forty adult, male, albino rats were divided into four groups and received the following treatments for fourteen days: Group I: (the control) normal saline; Group II: ACR only; Group III: ACR and ascorbic acid; and Group IV: ACR and silymarin. Under a light microscope, the liver from rats treated with ACR only presented disturbed liver architecture, degenerated hepatocytes, reduced glycogen contents, congested central vein, and increased collagen fibres with areas of fibrosis. Immunohistochemical examination revealed an increased mean number of CD68-, and α-SMA-positive cells. This indicates the presence of large numbers of stellate macrophages (Kupffer cells) and Hepatic stellate cells (HSCs). The combination of ACR with either ascorbic acid or silymarin resulted in less hepatic degeneration, less fibrosis and fewer CD68 and α-SMA positive cells compared to the ACR only group. In conclusion, treatment with silymarin or ascorbic acid along with ACR appears to alleviate ACR-induced hepatotoxicity with more protection in silymarin treated rats.


RESUMEN: La acrilamida (ACR) es un material citotóxico y cancerígeno. Es producto de la reacción de Maillard durante la cocción de muchos tipos de comida rápida y frita, por ejemplo: papas fritas y nuggets de pollo. ACR tiene un efecto tóxico severo en diferentes órganos del cuerpo. Este estudio investigó el efecto hepatotóxico del ACR y el efecto protector del ácido ascórbico y la silimarina. Con este fin, cuarenta ratas albinas machos adultas se dividieron en cuatro grupos y recibieron los siguientes tratamientos durante catorce días: Grupo I (control), solución salina normal; Grupo II, solo ACR; Grupo III, ACR y ácido ascórbico; y Grupo IV, ACR y silimarina. Bajo microscopio óptico, el hígado de ratas tratadas con ACR solo presentó alteración de su arquitectura, entre ellos hepatocitos degenerados, contenido reducido de glucógeno, vena central congestionada y aumento de fibras de colágeno con áreas de fibrosis. El examen inmunohistoquímico reveló un aumento del número medio de células CD68 y α-SMA positivas. Esto indica la presencia de un gran número de macrófagos estrellados (células de Kupffer) y células estrelladas hepáticas (HSC). La combinación de ACR con ácido ascórbico o silimarina resultó en menos degeneración hepática, menos fibrosis y menos células positivas para CD68 y α-SMA en comparación con el grupo de ACR solo. En conclusión, el tratamiento con silimarina o ácido ascórbico junto con ACR parece aliviar la hepatotoxicidad inducida por ACR.


Subject(s)
Animals , Male , Rats , Ascorbic Acid/pharmacology , Silymarin/pharmacology , Acrylamide/toxicity , Liver/drug effects , Immunohistochemistry , Antigens, CD/analysis , Actins/analysis , Hepatocytes , Hepatic Stellate Cells , Liver/metabolism , Liver/pathology
6.
Article | IMSEAR | ID: sea-211684

ABSTRACT

Erdheim–Chester disease (ECD) is a rare, non-inherited, non- Langerhans form of histiocytosis of unknown origin, first described in 1930. This entity is defined by a mononuclear infiltrate consisting of lipid laden, foamy histiocytes that stain positively for CD68. Individuals affected by this disease are typically adults between their 4th and 6th decades of life. The multi systemic form of ECD is associated with significant morbidity, which may arise due to histiocytic infiltration of critical organ systems. Among the more common sites of involvement are the skeleton, central nervous system, cardiovascular system, lungs, kidneys (retroperitoneum) and skin. The most common presenting symptom of ECD is bone pain. Bilateral symmetric increased tracer uptake on 99mTc bone scintigraphy affecting the periarticular regions of the long bones is highly suggestive of ECD. However, definite diagnosis of ECD is established only once CD68(+), CD1a(−) histiocytes are identified within a biopsy specimen with aid of clinical and radiological data. Here we present a rare case of Erdheim-Chester disease in a 46 year male patient based on clinical data, radiological data, histopathological and immunohistochemistry findings.

7.
Article | IMSEAR | ID: sea-196377

ABSTRACT

Histiocytic sarcoma is a rare malignant neoplasm that demonstrates mature histiocytic traits as characterized by immunohistochemistry. We report a case of extranodal histiocytic sarcoma (ENHS) of colon in a 56-year-old man presenting with gastrointestinal symptoms. Radiological findings were indicative of lymphoma or diffuse metastatic disease in colon. Histopathology of colectomy specimen was suggestive of ENHS, and immunohistochemical studies confirmed the uncommon diagnosis. The patient refused further therapy and succumbed to systemic complications of metastatic disease within a month of diagnosis. There have only been seven previous reports in world literature of ENHS involving large intestine.

8.
Int. j. morphol ; 37(2): 606-611, June 2019. tab, graf
Article in English | LILACS | ID: biblio-1002265

ABSTRACT

The purpose of this study was to examine the expression levels of the dental pulp to elucidate the role of Vascular Endothelial Growth Factor (VEGF) and CD68 on vascular angiogenesis, inflammation and odontoblast differentiation in the pulp tissue of diabetic rats depending on the effect of possible damage induced by diabetes. Wistar rats were used in the study, divided into two groups. Control group was fed with standard rat chow and drinking water ad libitum for 8 weeks. Single dose of streptozotocin (STZ) (55 mg/kg), was disolved in sodium citrate buffer and administered by intraperitoneal injection. Blood glucose concentration of rats exceeding 250 mg/dl were accepted as diabetic. Rats were sacrificed under anesthesia. Tissues were immediately dissected, fixed and embedded in paraffin and cut with a microtome then examined under light microscope. In the cross-sections of pulp tissue of diabetic group; the dilation of blood vessels besides hemorrhage and a significant increase in inflammatory cells were seen. The expression of VEGF in the blood vessel endothelial cells of the pulp was increased. VEGF showed positive reaction for degenerative odontoblast cells in the pulp. In this study, increase in VEGF and CD68 expressions in pulp tissue due to the effect of diabetes was thought to delay pulp treatment by inducing soft tissue damage and hypoxia.


El propósito de este estudio fue examinar los niveles de expresión en la pulpa dental para dilucidar el papel del Factor de Crecimiento Endotelial Vascular (VEGF) y el CD68 en la angiogénesis, la inflamación y la diferenciación de odontoblastos en el tejido pulpar de ratas diabéticas, dependiendo del efecto de daño inducido por la diabetes. Se utilizaron ratas Wistar divididas en dos grupos. El grupocontrol se alimentó con comida estándar para ratas y agua potable ad libitum durante 8 semanas. Se administró mediante inyección intraperitoneal dosis única de estreptozotocina (STZ) (55 mg / kg), se disolvió en tampón de citrato de sodio. La concentración de glucosa en sangre de ratas que excedían los 250 mg / dl se aceptó como diabética. Las ratas fueron sacrificadas bajo anestesia. Los tejidos se disecaron de inmediato, se fijaron en parafina y se cortaron para luego ser examinados con un microscopio óptico. En las secciones transversales del tejido pulpar del grupo diabético se observó la dilatación de los vasos sanguíneos además de hemorragia y un aumento significativo de células inflamatorias. La expresión de VEGF se incrementó en las células endoteliales de los vasos sanguíneos de la pulpa. VEGF mostró una reacción positiva para las células odontoblásticas degenerativas en la pulpa. El aumento en la expresión de VEGF y CD68 en el tejido de la pulpa debido al efecto de la diabetes puede retrasar el tratamiento de la pulpa al inducir hipoxia y daños en los tejidos blandos.


Subject(s)
Animals , Male , Rats , Dental Pulp/metabolism , Dental Pulp/pathology , Diabetes Mellitus, Experimental/metabolism , Diabetes Mellitus, Experimental/pathology , Immunohistochemistry , Antigens, CD/metabolism , Blotting, Western , Rats, Wistar , Vascular Endothelial Growth Factor A/metabolism , Inflammation , Neovascularization, Pathologic
9.
Rev. cir. traumatol. buco-maxilo-fac ; 19(4): 7-12, out.-dez. 2019. ilus, tab
Article in Portuguese | LILACS, BBO | ID: biblio-1253605

ABSTRACT

Introdução: Os tumores neurais são lesões, que têm origem nos nervos periféricos e representam um percentual de 45% dos neoplasmas, que atingem a região de cabeça e pescoço. A alta incidência nessa área é justificada pela quantidade relativamente grande de terminações nervosas periféricas agrupadas. Ainda que sejam de mesma origem neural, sua heterogeneidade microscópica e patogenética lhes conferem um variado padrão de apresentação clínica e histopatológica, diferindo na sua forma de tratamento. O objetivo do presente estudo foi analisar, por meio da técnica imuno-histoquímica, a expressão das proteínas S100 e CD68 em tumores neurais, localizados na cavidade bucal de pacientes atendidos no Serviço de Patologia Bucal da Universidade de Odontologia de Pernambuco. Metodologia: Todos os casos referentes a tumores neurais do Serviço de Patologia oral e maxilofacial da Faculdade de Odontologia de Pernambuco foram revistos. Avaliaram-se dados relativos à idade, ao sexo e à localização anatômica. A técnica imunohistoquímica foi realizada por meio do método estreptavidina-biotina, utilizando-se os anticorpos anti: S100 e CD68. A análise foi feita de forma descritiva, conforme dados da pesquisa. Resultados: foram avaliados 23 casos de tumores neurais da cavidade bucal, 15 neurofibromas, 6 neuromas traumáticos, 1 neurilemoma e 1 neuroma encapsulado em paliçada. Verificou-se que a proteína S100 foi expressa em todos os casos estudados com positividade variada, e a proteína CD68 apresentou expressão positiva em 18 casos (neuroma traumático, neurofibroma). Conclusões: os tumores neurais da cavidade bucal foram considerados raros, visto que ocorreram em apenas 23 casos entre 5.761, ou seja, em 2,3% das lesões biopsiadas da FOP-UPE... (AU)


Introduction: Neural tumors are lesions that originate from peripheral nerves and represent a percentage of 45% of neoplasms that reach the head and neck region. The high incidence in this area is explained by the relatively large number of grouped peripheral nerve endings. Although they are of the same neural origin, their microscopic and pathogenetic heterogeneity give them a varied pattern of clinical and histopathological presentation, as well as differing in their form of treatment. The aim of the present study was to analyze by immunohistochemical technique the expression of S100 and CD68 proteins in neural tumors located in the oral cavity of patients treated at the Oral Pathology Service of the University of Dentistry of Pernambuco. Methodology: All cases referring to neural tumors of the Service of Oral and Maxillofacial Pathology of the School of Dentistry of Pernambuco were reviewed. Data regarding age, sex, and anatomical location were evaluated. The immunohistochemical technique was performed by the streptavidin-biotin method using the anti-S100 and CD68 antibodies. The analysis was made in a descriptive way according to the research data. Results: 23 cases of neural tumors of the buccal cavity, 15 neurofibromas, 6 traumatic neuromas, 1 neurilemoma and 1 palisade encapsulated neuroma were evaluated. It was verified that S100 protein was expressed in all the cases studied with varied positivity, and the CD68 protein showed positive expression in 18 cases (traumatic neuroma, neurofibroma). Conclusions: Neural tumors of the oral cavity were considered rare, since they occurred in only 23 cases among 5,761, that is, 2.3% of FOP-UPE biopsied lesions... (AU)


Subject(s)
Humans , Male , Female , Pathology, Oral , Peripheral Nerves , Immunohistochemistry , S100 Proteins , Incidence , Neoplasms , Dentistry , Mouth , Nerve Endings
10.
Article in Chinese | WPRIM | ID: wpr-743407

ABSTRACT

Objective To investigate the expression and significance of CD68,E-cadherin and transforming growth factor-β1 (TGF-β1) in breast cancer.Methods Immunohistochemistry was used to detect the expression of CD68,E-cadherin and TGF-β1 in breast cancer tissues.The relationship between the expression of proteins with the clinicopathological parameters and the recurrence of breast cancer was analyzed.And the correlation among the three proteins was also analyzed.Results The positive expression rate of CD68 and E-cadherin was 70.4% and 72.6%,respectively,which was significantly higher than that in adjacent tissues(CD68:x2=44.278,P=0.000;TGF-β1:x2=121.529,P=0.000).The positive expression rate of E-cadherin in breast cancer was 29.1%,which was significantly lower than that in adjacent tissues(x2=244.965,P=0.000).The expression of CD68 protein was closely related to clinical stage (x2=11.720,P=0.003),lymph node metastasis (x2=9.394,P=0.002) and ER status (x2=5.204,P=0.023).The expression of E-cadherin protein was significantly correlated with the histological grade(x2=6.561,P=0.038) and lymph node metastasis(x2=6.892,P=0.009),and the expression of TGF-β1 protein was significantly correlated with the histological grade(x2=6.427,P=0.040) and ER status(x2=5.755,P=0.016) of patients.The three proteins were all significantly related to the 5 year recurrence of breast cancer (CD68:γ=0.152,P=0.021;TGF-β1:γ=0.157,P=0.017:E-cadherin:γ=-0.145,P=0.028).The expression of CD68 protein was negatively correlated with E-cadherin protein (γ=-0.151,P=0.022),and positively correlated with the expression of TGF-[β1 (γ=0.200,P=0.002).E-cadherin protein was negatively correlated with the expression of TGF-β1 protein(γ=-0.143,P=0.031).Conclusion CD68 positive cells (tumor associated macrophages,TAMs),E-cadherin and TGF-β1 may be involved in the progression of breast cancer,detection of the expression will provide the theoretical basis and guidance for the clinical pathological diagnosis and treatment of breast cancer.

11.
Int. j. morphol ; 36(4): 1453-1462, Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-975722

ABSTRACT

Traumatic brain injury (TBI) can potentially lead to hemorrhages in all areas of the skull, which can damage cells and nerve connections. This study aims to investigate the protective effects of Ganoderma lucidum polysaccharides (GLPS) as a antioxidant on cerebellar cell tissues after traumatic brain injury in rats. Sprague Dawley rats were subjected to TBI with a weight-drop device using 300 g1m weight-height impact. The groups are consisted of control, trauma, and trauma+Ganoderma lucidum groups. At seven days post-brain injury, experimental rats were decapitated after intraperitoneal administration of ketamine HCL (0.15 ml/100 g body weight). Cereballar samples were taken for histological examination or determination of malondialdehyde (MDA) and glutathione (GSH) levels and myeloperoxidase (MPO) activity. Significant improvement was observed in cells and vascular structures of Ganoderma lucidum treated groups when compared to untreated groups. It is believed that Ganoderma lucidum may have an effect on the progression of traumatic brain injury. Ganoderma lucidum application may affect angiogenetic development in blood vessel endothelial cells, decrease inflammatory cell accumulation by affecting cytokine mechanism and may create apoptotic nerve cells and neuroprotective mechanism in glial cells.


La lesión cerebral traumática (LCT) puede provocar hemorragias en todas las áreas del cráneo, lo que puede dañar las células y las conexiones nerviosas. Este estudio tuvo como objetivo investigar los efectos protectores de los polisacáridos de Ganoderma lucidum (GLPS) como antioxidante en los tejidos de las células del cerebelo después de la lesión cerebral traumática en ratas. Ratas Sprague Dawley fueron sometidas a TBI con un dispositivo de caída de peso usando un impacto de peso de 300 g-1 m. Se formaron los siguientes grupos: control, trauma y trauma + Ganoderma lucidum. Siete días después de la lesión cerebral, las ratas experimentales fueron decapitadas después de la administración intraperitoneal de ketamina HCL (0,15 ml / 100 g de peso corporal). Se tomaron muestras cerebrales para el examen histológico y para la determinación de niveles de malondialdehído (MDA) y glutatión (GSH) y actividad de mieloperoxidasa (MPO). Se observó una mejora significativa en las células y las estructuras vasculares de los grupos tratados con Ganoderma lucidum en comparación con los grupos no tratados. Durante el estudio se observó que Ganoderma lucidum puede tener un efecto sobre la progresión de la lesión cerebral traumática. La aplicación de Ganoderma lucidum puede afectar el desarrollo angiogénico en las células endoteliales de los vasos sanguíneos, disminuir la acumulación de células inflamatorias al afectar el mecanismo de las citocinas y puede crear células nerviosas apoptóticas y un mecanismo neuroprotector en las células gliales.


Subject(s)
Animals , Male , Rats , Cerebellum/drug effects , Reishi/chemistry , Brain Injuries, Traumatic/pathology , Antioxidants/pharmacology , Polysaccharides/pharmacology , Immunohistochemistry , Antigens, Differentiation, Myelomonocytic , Antigens, CD , Cerebellum/metabolism , Cerebellum/pathology , Blotting, Western , Rats, Sprague-Dawley , Peroxidase/metabolism , Neuroprotective Agents , Proto-Oncogene Proteins c-bcl-2 , Vascular Endothelial Growth Factor A/metabolism , Glutathione/analysis , Malondialdehyde/analysis
12.
Rev. ADM ; 75(6): 309-315, nov.-dic. 2018. ilus, tab
Article in Spanish | LILACS | ID: biblio-982196

ABSTRACT

Introducción: La lesión central (LCCG) y periférica (LPCG) de células gigantes de los maxilares, son lesiones reactivas con comportamiento clínico diferente. Objetivo: Comparar la inmunoexpresión de CD68 en células gigantes (CGm) mononucleares (CMn) en lesiones central y periférica de los maxilares. Material y métodos: Se evaluaron 35 casos de LCCG y 24 de LPCG en bloques de parafi na que podían ser procesadas para la expresión del anticuerpo CD68. La inmunoexpresión se valoró en el citoplasma de ambas poblaciones celulares, obteniendo proporciones; la inmunoexpresión se categorizó en intensa, moderada, leve. Las proporciones se compararon con χ2, siendo signifi cativo p ≤ 0.05. Resultados: Para las CGm de LCCG, CD68 se expresó en una proporción de 96 versus 84.2% LPCG (p < 0.005). La proporción de la tinción de la expresión intensa y moderada fue más frecuente en las LCCG (p = 0.032). Las proporciones entre las CMn 59.3% LCCG versus 18.6% en la LPCG (p < 0.001). Hubo diferencia en intensidad de CD68, en las CMn de LCCG fue mayor (p = 0.002). Conclusiones: La alta expresión de CD68 en las CGM y CMn en la lesión central y periférica confi rma su fenotipo de macrófago. Las diferencias entre las proporciones y la tinción a CD68 refl eja mayor actividad fagocítica posiblemente relacionada con el comportamiento clínico (AU)


Introduction: Central (CGCL) and Peripheral (PGCL) giant cell lesions of jaws are reactive lesions displaying diff erent behavior patterns. Objective: To compare CD68 immunoexpression between CGCL and PCGL in giant multinucleated and mononuclear cells. Material and methods: 35 CGCL and 24 PGCL were retrieved from paraffi n-embedded biopsy, as well as the feasibility to analyze CD68 immunoexpression. The immunoexpression was analyzed in cytoplasm both cell populations cellular, for and staining intensity was categorized as intense, moderate or faint. Proportions were compared by χ2, making a p ≤ 0.05 value signifi cate. Results: In 96% of CGCL's in GMCs displayed CD68, as compared to 84.2% in PGCL, (p < 0.005). The proportion of stained cells, intense to moderate staining was more frequent in CGCL (p = 0.032). The proportion CD68 was expressed in 59.3% or CGCL mononuclear cells, as compared to 18.6% in PGCL, (p < 0.001). There was diff erence in staining CD68 intensity between mononuclear cells in CGCL, (p = 0.002). Conclusions: The high CD68 expression frequency in GMCs and mononuclear cells in central and peripheral GCL confi rm a macrophage phenotype; a more intense staining in CGML and GMCs suggests a more active phagocytic activity, and possibility underline the diff erent clinical behavior (AU)


Subject(s)
Child , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Immunohistochemistry , Granuloma, Giant Cell/genetics , Jaw Diseases/immunology , Antigens, CD , Monocytes/chemistry , Data Interpretation, Statistical , Age and Sex Distribution , Macrophages/chemistry , Mexico
13.
Article in Chinese | WPRIM | ID: wpr-698238

ABSTRACT

Objective To investigate the correlation between tumor-associated macrophages(TAMs)and the occurrence and progression of Kazakh esophageal squamous cell carcinoma.Methods We collected 200 cases of esophageal squamous cell carcinoma(ESCC),cancer adjacent normal(CAN)tissues and clinical pathological data of the specimens.CD68 was used as the TAM marker,and immunohistochemistry(IHC)counts were used to detect the distribution of TAMs and quantify the density of TAMs in tumor nest/epithelial and surrounding stroma.At the same time,by combining with clinical pathological data and the patients' prognosis,we analyzed whether the high density of TAMs distribution was associated with the occurrence and development of Kazakh ESCC and the patients' poor prognosis.Results ① The density of TAMs in the tumor nests and stroma was significantly higher than that in CAN tissues(P<0.05).② The density of TAMs in tumor nest had a significant positive correlation with lymph node metastasis and clinical pathological stage(advanced)in Kazakh ESCC(P< 0.05),and this correlation was more evident between the density of TAMs in tumor stroma and lymph node metastasis and clinical pathological stage (advanced)(P<0.001).③ The survival analysis found that the high density of CD 68-positive TAMs in cancer nest showed a positive correlation with poor prognosis of ESCC(P<0.05).Conclusion High density of TAMs can promote the occurrence and development of Kazakh ESCC in Xinjiang and can be used as a poor prognostic factor for ESCC in Kazakh population.

14.
Article in Chinese | WPRIM | ID: wpr-693465

ABSTRACT

Objective To evaluate the expressions of CD68 and alpha/beta hydrolase domain-containing protein 5 (ABHD5) in gastric carcinoma and their interrelation,and the relationship with the clinicopathological features of gastric carcinoma.Methods The immunohistochemistry staining was used to determine the expressions of CD68 and ABHD5 in 60 cases of gastric carcinoma and 30 cases of adjacent normal tissues.The relationships between CD68,ABHD5 and clinicopathological features of gastric carcinoma,and the correlation of them were analyzed.Results The expressions of CD68 and ABHD5 in gastric carcinoma were significantly higher than those in adjacent normal tissues,and the positive expression rates were 65.00% vs.26.67%(x2 =11.779,P =0.001) and 60.00% vs.30.00% (x2 =7.200,P =0.007) respectively,with significant differences.The expression of CD68 was related to TNM stage (x2 =7.959,P =0.005),lymph node metastasis (x2 =6.901,P =0.009) and serosal invasion (x2 =5.833,P =0.016),but it was not associated with pathological grade (x2 =0.028,P =0.866),gender (x2 =0.533,P =0.465) and age (x2 =0.060,P =0.807).The expression of ABHD5 was related to pathological grade (x2 =4.318,P =0.038),TNM stage (/x2 =4.051,P =0.044) and serosal invasion (x2 =5.275,P =0.022),but it was not associated with lymph node metastasis (x2 =0.545,P =0.460),gender (x2 =0.191,P =0.662) and age (x2 =1.358,P =0.244).Contingency correlation analysis showed that there was positive correlation between CD68 and ABHD5 in gastric cancer (c =0.328,P =0.010).Conclusion The expressions of CD68 and ABHD5 in gastric carcinoma are higher than those in adjacent normal tissues,which are correlated with the different clinicopathological features of gastric carcinoma.The expression of CD68 is positively correlated with the expression of ABHD5.The combined detection of CD68 and ABHD5 expressions in gastric carcinoma is helpful to evaluate the invasion,metastasis and prognosis of gastric carcinoma.

15.
Article in Chinese | WPRIM | ID: wpr-692843

ABSTRACT

Objective To investigate the expression of macrophages in the bone marrow of chronic lympho-cytic leukemia (CLL) patients and its clinical significance in the pathogenesis of CLL .Methods Fifty-eight patients with newly diagnosed CLL were selected ,including 24 cases of Binet A ,19 cases of Binet B ,15 cases of Binet C ,and 20 patients with iron deficiency anemia were selected as control group .Immunohistochemical staining was used to detect the expression of CD68+ (M1+M2 type) and CD163 (M2 type) in CLL patients . The expression differences in bone marrow tissues of CLL patients at different stages were compared . Results The numbers of CD68+ and CD163+ cells in CLL group were significantly higher than those in con-trol group (P<0 .05) ,while those in Binet C stage patients were higher than in Binet B stage patients (P<0 .05) and those in Binet B stage patients were higher than in Binet A stage patients (P<0 .05) .The progres-sion of CLL was positively correlated with the infiltration density of CD 163+ cells (P<0 .05) .Conclusion Macrophages have a high density of infiltration in the bone marrow of CLL patients ,and the infiltration densi-ty varies in different periods of CLL .With the progresses of the disease ,macrophages infiltrated into bone marrow gradually polarize to M 2 type ,w hich is relevant with the course of CLL progress .

16.
Braz. j. med. biol. res ; 51(10): e7076, 2018. graf
Article in English | LILACS | ID: biblio-951718

ABSTRACT

This study evaluated the effect of microglia transplantation on neurological functional recovery in rats subjected to traumatic spinal cord injury (SCI). The rat model of SCI was established using a weight drop device. Forty SCI rats were randomly divided into the microglia group and the saline group. Then, rat-derived microglial cells or normal saline was injected into the injured site 7 days after surgery. The Basso-Beattie-Bresnahan (BBB) score, inclined plate test, and motor-evoked potentials (MEPs) were applied to assess the recovery of motor function. Hematoxylin and eosin (H&E) staining was used to assess the therapeutic effect. Microglia transplantation significantly improved BBB scores and functional scores at 2, 3, 4, 6, and 8 weeks after surgery compared to saline injection (P<0.05). Meanwhile, a prolonged MEP latency and decreased MEP amplitude were observed at 4 and 8 weeks in the microglia group (P<0.05). Histological analysis showed less damage and better prognosis in SCI rats of the microglia group. BrdU+ cell tracing experiments showed that microglia were recruited to the injured area of the spinal cord at 7 and 14 days after transplantation. The intensity of immunofluorescence was increased in CD68+ and OX42+ microglia at 2 days, 1 week, and 2 weeks, and then decreased at 3 and 4 weeks after transplantation in the microglia group. The transplantation of activated microglia played a key role in promoting the recovery of spinal cord function in a rat model of SCI.


Subject(s)
Animals , Female , Rats , Spinal Cord Injuries/surgery , Microglia/transplantation , Recovery of Function , Spinal Cord Injuries/pathology , Time Factors , Random Allocation , Rats, Wistar , Rats, Sprague-Dawley , Disease Models, Animal
17.
Chinese Journal of Urology ; (12): 57-60, 2017.
Article in Chinese | WPRIM | ID: wpr-667267

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Objective To study the expression and significance of CD68 and TGF-β2 in benign prostatic hyperplasia(BPH).Methods The immunohistochemistry PV two step method was used to detect the expression level of CD68 and TGF-β2 in 90 cases of benign prostatic hyperplasia and combined with clinical data were analyzed.Results Positive rate of CD68 as macrophages marker was 86%(77/90) in the epithelial cells,positive rate of TGF-β2 as transforming growth factor marker was 79%(71/90) in epithelial cells and stromal cells. Immune inlfammation mediated by macrophages,with coloring degree deepening,the degree of immune inlfammation increased,larger prostate volume(P<0.01),IPSS score higher (P<0.01),maximum urinary lfow rate lower(P<0.01),the dffierences between groups were statistically significant.Conclusions This point may indicate immune inlfammation play an important role in the development process of BPH and help to complete the pathogenisis theory.

18.
Article in Chinese | WPRIM | ID: wpr-661880

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Objective To identify the expression of CD68-tumor-associated macrophages (TAMs) and proliferative marker Ki-67 in retroperitoneal malignant fibrous histiocytoma (MFH) and their clinical significance. Methods Clinical data about 35 patients with retroperitoneal MFH managed with surgery from February 2002 to December 2015 were retrospectively analyzed and all patients were followed up. There were 24 male and 11 female patients, and they were 18-71 years old, with mean age (53.0 ± 10.8) years old. Patients were divided into CD68 positive group (21 patients) and CD68 negative group (14 patients), while they were also divided into Ki-67 low expression (< 20%) group and Ki-67 high expression ( ≥ 20%) group, according to the immunohistochemical staining results. The overall survival time and all clinical data between two groups were compared. Kaplan-Meier estimations, Cox regression analysis, Fisher exact probabilities and Spearman correlations were performed. Results Of the 35 patients, 18 patients received radical resection, and 17 patients received palliative operation. The overall 1-, 3-, 5-year survival rates were 65.7%, 22.9%and 8.6%and the median survival was 17 (1-86) months. Factors associated with postoperative survival were FNCLCC grade (x2=7.002, P=0.008), modusoperandi of the tumor resection(x2=7.134, P=0.008), and CD68(x2=4.634, P=0.031) and Ki-67 overexpression (≥20%) (x2=8.898, P=0.003 ) . The difference between gender, age, tumor size, blood loss, removal of the joint organs and adjuvant therapy got no statistical significances (P > 0.05). Multivariate analysis showed that survival was associated with modusoperandi of the tumor resection and Ki-67 overexpression (P=0.003, 0.002, respectively). Conclusions Retroperitoneal malignant fibrous histiocytoma is a rare malignancy that display poor prognosis and high mortality. Complete resection remains the mainstream for retroperitoneal malignant fibrous histiocytoma. The patients' life span in CD68 positive or Ki-67 high expression is shorter. CD68 and Ki-67 plays a critical role in retroperitoneal malignant fibrous histiocytoma carcinogenesis and their high expression may be used as a potential survival predictor in patients with retroperitoneal MFH.

19.
Article in Chinese | WPRIM | ID: wpr-658961

ABSTRACT

Objective To identify the expression of CD68-tumor-associated macrophages (TAMs) and proliferative marker Ki-67 in retroperitoneal malignant fibrous histiocytoma (MFH) and their clinical significance. Methods Clinical data about 35 patients with retroperitoneal MFH managed with surgery from February 2002 to December 2015 were retrospectively analyzed and all patients were followed up. There were 24 male and 11 female patients, and they were 18-71 years old, with mean age (53.0 ± 10.8) years old. Patients were divided into CD68 positive group (21 patients) and CD68 negative group (14 patients), while they were also divided into Ki-67 low expression (< 20%) group and Ki-67 high expression ( ≥ 20%) group, according to the immunohistochemical staining results. The overall survival time and all clinical data between two groups were compared. Kaplan-Meier estimations, Cox regression analysis, Fisher exact probabilities and Spearman correlations were performed. Results Of the 35 patients, 18 patients received radical resection, and 17 patients received palliative operation. The overall 1-, 3-, 5-year survival rates were 65.7%, 22.9%and 8.6%and the median survival was 17 (1-86) months. Factors associated with postoperative survival were FNCLCC grade (x2=7.002, P=0.008), modusoperandi of the tumor resection(x2=7.134, P=0.008), and CD68(x2=4.634, P=0.031) and Ki-67 overexpression (≥20%) (x2=8.898, P=0.003 ) . The difference between gender, age, tumor size, blood loss, removal of the joint organs and adjuvant therapy got no statistical significances (P > 0.05). Multivariate analysis showed that survival was associated with modusoperandi of the tumor resection and Ki-67 overexpression (P=0.003, 0.002, respectively). Conclusions Retroperitoneal malignant fibrous histiocytoma is a rare malignancy that display poor prognosis and high mortality. Complete resection remains the mainstream for retroperitoneal malignant fibrous histiocytoma. The patients' life span in CD68 positive or Ki-67 high expression is shorter. CD68 and Ki-67 plays a critical role in retroperitoneal malignant fibrous histiocytoma carcinogenesis and their high expression may be used as a potential survival predictor in patients with retroperitoneal MFH.

20.
Chongqing Medicine ; (36): 2764-2766, 2017.
Article in Chinese | WPRIM | ID: wpr-617392

ABSTRACT

Objective To investigate the correlation between the number of CD68+ and CD163+ macrophages infiltration and the clinical characteristics of oral squamous cell carcinoma (OSCC),and to investigate the role and significance of CD163+ and CD68+ macrophages in OSCC.Methods Forty-two cases of OSCC resected by operation and diagnosed by postoperative pathology with intact clinical data in our hospitals during 2013-2016 were selected.Other 12 cases of oral mamaxillofacial normal tissue served as controls.The number of CD68+ and CD163+ macrophages infiltration in OSCC was detected by immunohistochemistry.Its correlation with clinical characteristics was analyzed.Results The number of CD68+ and CD163+ macrophages infiltration in OSCC was significantly higher than that in the control group (P<0.05);the infiltration quantity of CD68+ and CD163+ macrophages in poor differentiation and moderate differentiation was significantly higher than that in high differentiation(P<0.05).The number of CD68+ macrophages in lymph node metastasis was significantly lower than that without lymph node metastasis (P<0.05).The number of CD163+ macrophages in the lymph node metastasis was significantly higher than that of CD68+ (P<0.05).The number of CD68+ and CD163+ macrophages had positive correlation in OSCC (r=0.48,P=0.00).Conclusion Tumor-associated macrophages (TAMs) and M2 macrophages may play an important role in OSCC,TAMs may inhibits lymph node metastasis in OSCC,while M2 marcophages may promote the lymphatic matastasis of OSCC.

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