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Inflammasome is a group of polyprotein complexes located in the cytoplasm, its activation can induce the maturation and release of proinflammatory cytokines IL-1β and IL-18, and promote the early atherosclerosis. In the recent years, it is found that the inflammasome is activated in thrombotic deseases, moveover, the activated inflammasome and its activation induced cytokines promote the occurrence and development of thrombolic deseases, and show the unfavaourable effect on prognosis. With further exploration on the mechanisms of thrombotic diseases, the relationship between the inflammasome and thrombotic diseases increasingly become a hot spot of research. This review focuses on the action mechanisms of inflammasome in thrombotic diseases.
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MicroRNAs (miRNAs) are a class of endogenous non-coding single-stranded small noncoding RNAs with the length of 20 to 23 nucleotides. MicroRNA-125 (miR-125) family, which is a highly conserved miRNA family, is consist of miR-125a, miR-125b-1 and miR-125b-2. Accumulating evidence demonstrated that miR-125 can be involved in various physiological and pathological processes in vivo. Importantly, it is closely related with the tumorigenesis and tumor development, including tumor cell proliferation, apoptosis, invasion and metastasis, metabolism and immune response. In malignant hematologic diseases, it is defined either as a oncogene, or as a tumor suppressor gene, even, closely related with the drug resistance in a variety of hematologic malignancies. MiR-125 is expected to become a new therapeutic target. Newly, the research of the relationship between miR-125 family and hematologic malignancies become increasing, including leukemia, lymphoma, multiple myeloma. In this review, the relationship between miR-125 family with malignant hematologic diseases and its latest research progress are summarized.
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Previous studies have found that Musashi-2 (Msi-2) plays an essential role in regulating the gene expression of stem cell populations by inhibiting or activating the translation, and thus regulates stem cell function. Current research shows that Msi-2 involved in the regulation of a variety of malignant hematological diseases through different mechanisms; moreover abnormally expressed in a variety of malignant hematological diseases and involved in the occurrence, development of a variety of malignant hematological diseases. Further study on the role of malignant hematologic diseases will further clarify the pathogenesis of malignant hematologic diseases, and provide a new basis for the diagnosis and treatment of malignant hematological diseases. In this review, the structure and function of Msi-2 and its relationship with malignant hematologic diseases and its latest research progress are summarized.
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OBJECTIVE: To investigate the effect of cadmium chloride on the expression of kidney injury molecule-1( KIM-1)in human renal tubular epithelial cells( HK-2 cells). METHODS: HK-2 cells at logarithmic phase were divided into a control group and 5 treatment groups that were treated with 5. 0,10. 0,20. 0,50. 0 and 100. 0 μmol / L of cadmium chloride dissolved in phosphate buffer solution. Cell pathology observation was carried out after 24 hours of cultivation. The methyl thiazolyl tetrazolium assay was used to calculate the survival rate of HK-2 cells. The expression of KIM-1 mRNA and protein were detected by the reverse transcription-polymerase chain reaction and Western blotting analysis respectively.RESULTS: There were no cellular morphologic change in HK-2 cells in the control group,the 5. 0 and 10. 0 μmol / L groups;the HK-2 cells showed different degree of swellings or vacuoles in the 20. 0 and 50. 0 μmol / L groups; a large number of cells were found dead in the 100. 0 μmol / L group. The cell survival rates of HK-2 cells in the 20. 0,50. 0 and 100. 0μmol /L groups were lower than those of control group,the 5. 0 and 10. 0 μmol /L groups( P < 0. 05). The pairwise comparison among survival rates of the 20. 0,50. 0 and 100. 0 μmol / L groups showed significant difference( P < 0. 05).The expression levels of KIM-1 mRNA and protein in the 20. 0 and 50. 0 μmol / L groups were higher than those of control group,the 5. 0 and 10. 0 μmol / L groups( P < 0. 05). The levels of KIM-1 mRNA and protein in the 50. 0 μmol / L group were higher than those of the 20. 0 μmol / L group( P < 0. 05). CONCLUSION: Cadmium chloride at certain concentration can increase the expression of KIM-1 mRNA and protein in HK-2 cells. Therefore,the expression of KIM-1 could be used as one of the effect biomarkers for cadmium induced kidney tubule injury.
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Se ha demostrado que la ketamina, una anestésico general, produce una respuesta de choque térmico (HSR) en algunos animales experimentales. Examinamos si la ketamina mejora la supervivencia en lesión por quemadura severa en ratas, a través de la expresión de la proteína de choque 70. Un total de 124 ratas Wistar machos se dividieron aleatoriamente en 3 grupos: un grupo de control (grupo C, n = 20), un grupo quemado (grupo B, n = 52) y un grupo quemado + ketamina (grupo K, n = 52). Las ratas de los grupos B y K presentaban quemaduras de espesor completo en el 30% del total de su superficie corporal. Las ratas del grupo K se trataron con ketamina (40mg/kg, i.m.) a los 15min después de la lesión y las del grupo B se inyectaron con igual volumen de solución salina. Luego de practicar la eutanasia a las ratas, se examinó la expresión de HSP70 en muestras del miocardio y del cerebro con análisis Western blot. En las ratas que no se sacrificaron se evaluó el estado de supervivencia. Luego de 10 días, la tasa de supervivencia en las ratas del grupo K era superior a las del grupo B (70% versus 30%). Los análisis Western blot mostraron que la expresión de proteína HSP70 en el miocardio en respuesta a la administración de ketamina es más fuerte que en respuesta a la administración de solución salina a las 3 h (158% versus 65%) y a las 6h (165% versus 68%). En comparación con el grupo B, la ketamina aumentó marcadamente el nivel de expresión de la proteína HSP70 en tejido cerebral a las 3h y a las 6 h (79% versus 51% a las 3 h; 123% versus 98% a las 6 h). Concluimos que el tratamiento con ketamina mejora la supervivencia en lesión por quemadura severa, mediante la expresión de la proteína de choque 70 en los tejidos del miocardio y del cerebro.
Ketamine, a general anesthetic, has been shown to elicit the heat-shock response (HSR) in some of the animal models. We examined whether ketamine improves survival in severe burn injury in rats via the expression of heat shock protein 70. 124 male Wistar rats were randomly divided into three groups: a control group (group C, n = 20), burned group (group B, n = 52), and burned + ketamine group (group K, n = 52). The rats in groups B and K had full-thickness burns of 30% of their total body surface. The rats in group K were treated with ketamine (40 mg/kg, i.m.) 15 min after injury, and those in group B were injected with saline at the same volume. After the rats were euthanized, HSP70 expression in myocardium and brain samples was examined by Western blot analysis. Survival status was evaluated for the rats not euthanized. After 10 days, survival rate of rats in group K was higher than that of group B (70% versus 30%). Western blot analyses revealed that HSP70 protein expression in myocardium in response to ketamine administration is stronger than that in response to saline administration at 3 h (158% versus 65%) and 6 h (165% versus 68%). Compared with that in group B, ketamine strongly increased HSP70 protein expression level in cerebral tissue at 3 h and 6 h (79% versus 51%, at 3 h; 123% versus 98%, at 6 h). We concluded that ketamine therapy improves survival in severe burn injury via the expression of heat shock protein 70 in myocardial and cerebral tissues.
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HumansABSTRACT
<p><b>OBJECTIVE</b>This study was aimed to analyze the relationship between single nucleotide polymorphisms of transforming growth factor-β1 G-800A and C-509T, interleukin-4 receptor V75I and susceptibility of CHL in adults.</p><p><b>METHODS</b>Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was applied to analyze the expressed alleles of the selected SNP loca. The relationship between genomic polymorphisms of TGF-β1 and IL-4R and susceptibility of CHL were coupled with clinical data.</p><p><b>RESULTS</b>TGF-β1G-800A and TGF-β1C-509T had obvious linkage equilibrium (D' = 0.879, r(2) = 0.83, P = 0.020). GT haplotype distribution frequencies in mixed cellularity Hodgkin lymphoma cases and control group were of 53.1% and 34.2%, respectively, with statistically significant (OR = 2.35, P = 0.000); distribution frequencies of mutant gene T/T in disease and control groups were of 38.8% and 15.3%, respectively, also with statistically significant (OR = 3.654, P = 0.000); frequencies of nodular sclerosis CHL patients with IL-4R V75I mutant gene A/A in disease and control groups were of 19.2% and 41.75%, respectively, also with statistically significant (OR = 3.156, P = 0.000).</p><p><b>CONCLUSION</b>Single nucleotide polymorphisms of TGF-β1 G-800A, C-509T and IL-4R V75I has a significant correlation with Chinese susceptibility to classical Hodgkin lymphoma.</p>
Subject(s)
Adult , Female , Humans , Male , Middle Aged , Young Adult , Alleles , Asian People , Genetics , Genotype , Haplotypes , Hodgkin Disease , Genetics , Pathology , Polymorphism, Restriction Fragment Length , Polymorphism, Single Nucleotide , Receptors, Interleukin-4 , Genetics , Transforming Growth Factor beta , GeneticsABSTRACT
Waldenström's macroglobulinemia (WM) is one of malignant hematological disease on account of abnormal proliferation of B lymphocyte clone and the pathologic cells of WM possess ability to secrete monoclonal immunoglobulin M. In this study, the diagnosis and morphological characteristics of 2 patients with WM were analyzed. The results showed that a special kind of "foam cells" were found by cytochemical staining examinations in both cases, which displayed characteristics of lymphocytes, but neither monocyte-macrophage nor fatty cells. The periodic acid-Shiff's reaction (PAS) demonstrated strong positive, especially on the inclusion bodies in pathologic cell plasma while the acid phosphatase, and alpha-butanoic acetate esterase stainings, resulted both in negative. In conclusion, the cells found in the two cases reported may be described as gemmy ring-like lymphocyte in morphology, a special subtype of ring-like lymphocyte.