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Objective:To explore the effects of breast cancer mesenchymal stem cells (BC-MSC) on the proliferation and migration of breast cancer MCF-7 cells and the related mechanisms.Methods:The resected cancer tissues and paracancerous tissues were taken from breast cancer patients after surgery, and the bone marrow samples of healthy people were selected. BC-MSC, breast cancer paracancerous mesenchymal stem cells (BCN-MSC) and bone marrow mesenchymal stem cells (BM-MSC) of healthy people were isolated and cultured by tissue adhesion method, and their differentiation ability was induced by the addition of osteogenic and lipogenic induction, and their surface markers were detected by flow cytometry. The supernatants of BC-MSC, BCN-MSC and BM-MSC of healthy people cultured for 48 h were collected and used for the culture of MCF-7 cells as BC-MSC group, BCN-MSC group and BM-MSC group, respectively, and the control group was the conventional cultured MCF-7 cells. The proliferation ability of MCF-7 cells in each group was detected by methyl thiazol tetrazolium (MTT) assay, the clone formation ability of MCF-7 cells was detected by plate cloning assay, the migration ability of MCF-7 cells was detected by Transwell assay, and the mRNA relative expressions of interleukin (IL)-6 and epithelial mesenchymal transition (EMT)-related genes (E-cadherin, vimentin, snail) were detected by quantitative real-time fluorescence polymerase chain reaction (qRT-PCR) in MCF-7 cells. Western blotting was used to detect expressions of p-STAT3, E-cadherin, vimentin and snail proteins in MCF-7 cells. Luminex liquid microarray technology was used to detect cytokine levels in culture supernatants of different mesenchymal stem cells (MSC). IL-6 neutralizing antibody was added into the supernatant of BC-MSC, MCF-7 cells were cultured with the supernatant (BC-MSC+IL-6 neutralizing antibody group), and then the proliferation and migration abilities of MCF-7 cells were tested, as well as the expression changes of related genes and proteins.Results:BC-MSC, BCN-MSC and BM-MSC were successfully isolated; BC-MSC had positive expressions of CD29, CD44 and CD90 and negative expressions of CD14, CD34 and CD45, which were in line with the characteristics of MSC. MTT assay showed that the absorbance values of MCF-7 cells cultured for 48 h in the control group, BC-MSC group, BCN-MSC group and BM-MSC group were 0.31±0.02, 0.54±0.03, 0.43±0.02 and 0.42±0.02, respectively, and the difference was statistically significant ( F = 56.52, P < 0.05); the results of plate cloning experiments showed that the number of clones in each petri dish of the four groups were 180±9, 439±17, 319±16 and 306±19, respectively, and the difference was statistically significant ( F = 222.70, P < 0.05); Transwell assay showed that the numbers of membrane-penetrating cells in the four groups were 6.5±1.0, 23.2±2.4, 16.0±1.3 and 14.8±2.0, respectively, with the statistically significant difference ( F = 49.44, P < 0.05); qRT-PCR assay showed that the relative expressions of IL-6 mRNA in the control group, BC-MSC group, BCN-MSC group and BM-MSC group were 1.07±0.11, 13.79±3.80, 6.68±1.66 and 6.12±1.52, respectively, and the difference was statistically significant ( F = 107.60, P < 0.05), and the relative expression of E-cadherin mRNA in MCF-7 cells of BC-MSC, BCN-MSC and BM-MSC groups was lower than that of the control group, while the relative expressions of vimentin and snail mRNA were higher than those of the control group, and the differences were statistically significant (all P < 0.05). Western blotting assay showed that the relative expression of E-cadherin mRNA in MCF-7 cells of BC-MSC, BCN-MSC and BM-MSC groups was lower than that of the control group. Western blotting showed that the level of E-cadherin protein in BC-MSC, BCN-MSC and BM-MSC groups was lower than that in the control group, and the levels of vimentin and snail proteins were higher than those in the control group; Luminex liquid microarray technology showed that the content of IL-6 cytokine in the supernatants of BC-MSC, BCN-MSC and BM -MSC cultures were higher, and the relative expressions were 1.75±0.21, 1.00±0.10 and 0.96±0.08, respectively, and the difference was statistically significant ( F = 43.22, P < 0.05). The results of MTT assay showed that the absorbance values of MCF-7 cells in BC-MSC group and BC-MSC+IL-6 neutralizing antibody group were 0.56±0.05 and 0.42±0.04, respectively, and the difference was statistically significant ( t = -3.11, P < 0.05); the results of Transwell assay showed that the numbers of membrane-penetrating cells in the two groups were 30.3±1.5 and 17.3±2.1, respectively, and the difference was statistically significant ( t = -7.12, P < 0.05); qRT-PCR assay showed that the relative expressions of E-cadherin mRNA were 0.44±0.05 and 0.76±0.05 ( t = 6.40, P < 0.01), the relative expressions of vimentin mRNA were 2.90±0.21 and 1.79±0.21 ( t = 5.29, P < 0.01), and the relative expressions of snail mRNA were 3.20±0.20 and 1.91±0.30 ( t = 2.16, P < 0.01); Western blotting assay showed that the degrees to down-regulate the expression of E-cadherin protein and up-regulate the expressions of vimentin and snail proteins in the BC-MSC+IL-6 neutralizing antibody group were weakened compared with the BC-MSC group. Conclusions:BC-MSC can promote the proliferation and migration of breast cancer MCF-7 cells probably through activating IL-6-STAT3 signaling pathway-induced EMT by its secretion of IL-6.
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Introdução: O Câncer de mama (CM) é a neoplasia maligna mais comum nas mulheres, sendo a primeira em incidência, depois do câncer de pele e uma das principais causas de morte por câncer feminino. Conhecer o perfil epidemiológico, clínico, anátomo patológico e imunohistoquímico dessa doença contribuirá para o desenvolvimento de estratégias para a prevenção e tratamento. O presente estudo tem por objetivo descrever o perfil epidemiológico, clínico, anátomo patológico e imunohistoquímico das pacientes com CM, assistidas em Cuiabá (MT). Método: É um estudo observacional e descritivo. Os dados foram coletados em formulário específico, diretamente com as pacientes em entrevistas e dos prontuários médicos em instituições de atendimento pelo Sistema Único de Saúde e em clínica de atendimento privado e de convênios médicos entre 2011 a 2013. Resultados: As pacientes com CM em Cuiabá apresentam semelhança com as pacientes descritas em outros estudos brasileiros em relação à idade, estado civil, etnia, escolaridade, índice de massa corpórea, quanto à forma de percepção e sintomas, quanto á menarca, número de filhos, amamentação, uso de contraceptivo hormonal, uso de terapia de reposição hormonal, consumo de bebida alcoólica, prática de atividade física e trauma emocional. Conclusão: As pacientes estudadas com CM em Cuiabá apresentam distribuição semelhantes às descritas em outras publicações brasileiras. Quando comparada a distribuição da etnia, comparada com aspectos clínicos, anátomo patológicos e imunohistoquímicos, não se observou diferença entre os grupos. Também não se observou diferença comparando estádio clínico com nível de escolaridade nem com peso corpóreo. Observou-se diferença na distribuição da doença quanto ao estádio clínico entre pacientes assistidas no Sistema Único de Saúde (SUS) comparada com as assistidas em consultórios privados e de convênios, sendo as assistidas em sistema privado e de convênios com diagnóstico em estádio clínico menor, comparada com as assistidas pelo SUS.
Introduction: Breast Cancer (BC) is the most common malignancy in women, the first in incidence after skin cancer and a leading cause of female cancer death. Understand the epidemiological, clinical profile, anatomical pathology and immunohistochemical this disease contribute to the development of strategies for prevention and treatment. This study aims to describe the epidemiological, clinical profile, anatomical pathology and immunohistochemical of patients with BC, assisted in Cuiaba (MT), Brazil. Method: It is an observational study. Data were collected in a specific form, directly to the patient interviews and medical records in care institutions by the Unified Health System and private clinical care and health insurance between 2011 and 2013. Results: Patients with BC in Cuiabá present resemblance to the patients described in other Brazilian studies regarding age, marital status, ethnicity, education level, body mass index, how to perception and symptoms, as to the menarche, number of children, breastfeeding, contraceptive use hormonal, use of hormone replacement therapy, alcohol consumption, physical activity and emotional trauma. Conclusion: The patients studied with BC in Cuiaba present distribution similar to those described in other Brazilian publications. When compared by ethnicity and clinical, anatomical and pathological immunohistochemical, there was no difference between groups. Also there was no difference comparing clinical stage with education level or with body weight. There was difference in the distribution of the disease and the clinical stage of patients assisted in the Unified Health System (SUS) compared to those receiving care at private practices and agreements, and the assisted private system and agreements with diagnosis in lower clinical stage, compared with assisted by SUS.
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Objective To investigate the clinical values of postoperative aerobic exercise and psychological intervention in patients with breast cancer after operation.Methods One hundred patients with breast cancer admitted to our hospital were prospectively studied.All patients underwent modified radical mastectomy and were randomly assigned into observation group (50 cases)and control group (50 cases).The patients in the observation group were treated with aerobic exercise and psychological intervention,and the health education was given in the control group. The 3 -month postoperative self -rating anxiety scale score,self -rating depression scale score,shoulder mobility, degree of limb edema and 6 -month postoperative health related quality of life (SF -36)of the two groups were observed.Results There were no significant differences between the two groups in preoperative self -rating anxiety scale score,self -rating depression scale score,degree of limb edema and health related quality of life (all P >0.05).However,the self -rating anxiety scale score of the observation group three months after operation significantly decreased compared with the control group[(40.94 ±9.20)points vs.(45.84 ±8.79)points,t =2.722,P =0.008];self -rating anxiety scale score significantly decreased[(40.18 ±9.96)points vs.(45.28 ±8.67)points,t =2.730, P =0.008];the degree of limb edema was significantly reduced[(10.00 ±6.27)mL vs.(18.52 ±7.20)mL,t =6.313,P =0.000].The health related quality of life 6 months after operation was significantly improved[(78.70 ± 8.85)points vs.(72.02 ±9.76)points,t =3.584,P =0.001 ].Compared with the control group,the shoulder flexion,extension,abduction,external rotation and internal rotation of the observational group were significantly increased at 3 months after operation (all P <0.05 ).Conclusion Postoperative rehabilitation and psychological intervention contribute to the rapid recovery in patients with breast cancer after operation.
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Objective To explore the serum metabonomic difference between breast fibroadenoma patients and breast invasive ductal carcinoma patients using nuclear magnetic resonance 1H(1HNMR) spectroscopy, and to discuss the possibility of using it for differentiation of benign and malignant breast tumor before operation, Methods Eight clinically diagnosed breast fibroadenoma patients and 8 breast invasive ductal carcinoma patients were recruited and their sera were collected; 1HNMR was used to obtain the metabonomic characteristics, The data were processed using Simca-P software and analyzed with principle component analysis(PCA) and orthogonal signal correction partial least squares discrimination analysis(OPLS-DA), Results PCA and OPLS-DA analyses showed great differences in serum metabonomics between breast fibroadenoma and breast invasive ductal carcinoma, Compared with breast fibroadenoma patients, patients with invasive ductal carcinoma had higher levels of lipid, lactate and phosphocholine lglycerolphospholine, and lower levels of glutamine, taurine, creatine, and glucose, Conclusion Distinct difference exists in serum metabonomic profiles between breast adenoma patients and breast invasive ductal carcinoma patients, which may serve as the potential biomarkers to differentiate malignant tumors from benign ones in clinic.
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Introduction. Triple-negative cancers (TNC) refers to any breast cancer that does not express the genes for estrogen receptor (ER), progesterone receptor (PR) or human epidermal grow factor, receptor type 2. Herceptin (HER2). They tend to be more aggressive; often being diagnosed in young patients, sometimes as interval cancers, they can grow to be large in size and patients frequently present initially with axillary metastases. They show a worse prognosis compared to other breast cancer tumors, with an increased risk of distant recurrence and death, especially in the first 5 years after diagnosis. Patients and methods. We conducted a descriptive, retrospective observational study of TNC cases diagnosed at our institution between March 2005 and June 2012 in order to identify their imaging features. Results. TNC may not be seen on mammography (Mx) if the parenchyma is dense (ACR types 3 and 4), mainly because they appear as masses or focal asymmetries without microcalcifications. Both on mammography and ultrasound (US) they can evoke a benign lesion. On US studies they frequently manifest as a solid single nodule, markedly hypoechoic with posterior acoustic enhancement and well-defined contours. They appear hypo/ avascular on color Doppler examinations (or vascularized in the periphery without central vessels) and various afferent pedicles may be present. Magnetic resonance imaging (MRI) clearly identifies suspicious lesions with some characteristic features: mass preferably with posterior and prepectoral location, markedly hyperintense on T2- weighted images with a ring-like pattern of contrast agent uptake, presenting washout curve, sometimes with septa increased uptake in the lesion center. Conclusion. Triple receptor-negative cancers often exhibit imaging features that distinguish them from other types of tumors.
Introducción. Los cánceres triple negativo (CTN) son aquellos que no presentan receptores de estrógeno, progesterona ni human epidermal grow factor, receptor type 2. Herceptin (HER2). Tienden a ser más agresivos; a menudo se diagnostican en pacientes jóvenes, a veces como cánceres de intervalo, llegan a ser de gran tamaño y más frecuentemente presentan metástasis axilares al momento del diagnóstico. Su pronóstico es peor que otros cánceres mamarios, existiendo una mayor probabilidad de recurrencia a distancia y de muerte, especialmente en los primeros 5 años. Pacientes y métodos. Se efectuó una revisión retrospectiva descriptiva de los casos de CTN diagnosticados en nuestra institución (periodo entre marzo de 2005 y junio de 2012) con el fin de identificar sus características imaginológicas. Resultados. Los CTN pueden quedar ocultos en mamografía (Mx) si el parénquima es denso (tipo ACR 3 y 4), puesto que aparecen principalmente como masas o asimetrías focales, sin microcalcificaciones. Tanto en Mx como en ultrasonido (US) pueden evocar una lesión de morfología benigna. En US se manifiestan frecuentemente como un nódulo sólido único, marcadamente hipoecogénico con refuerzo posterior, de contornos bastante circunscritos y que aparece hipo/avascular al Doppler color (o vascularizado en la periferia sin vasos centrales) y varios pedículos aferentes. La resonancia magnética (RM) identifica hallazgos claramente sospechosos con algunos elementos característicos: masa cuya localización es preferentemente posterior, pre-pectoral, marcadamente hiperintensa en T2 que capta el contraste en anillo y presenta curva de lavado, a veces con septos hipercaptantes en el centro de la lesión. Conclusión. Los CTN presentan a menudo características en imágenes que los diferencian de otros tipos de tumores.
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Idoso de 80 Anos ou mais , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Ultrassonografia Mamária , Estudos Retrospectivos , Fatores Etários , Imageamento por Ressonância Magnética , Mamografia , Neoplasias da Mama/patologiaRESUMO
Objective To study the clinical characteristics,pathology,and treatment for papillary carcinoma of the breast.Methods The clinical data of 17 patients of papillary carcinoma of the breast admitted in the First Affiliated Hospital of Wen Zhou Medical College were retrospectively analyzed.Results Papillary carcinoma of the breast accounted for 0.64% of all breast cancer cases hospitalized during last 10 years.All cases had palpable lumps in the breast.12 cases received modified radical mastectomy,2 cases received simple mastectomy,2 cases underwent breast conservation therapy,1 case underwent simple mastectomy plus sentinel lymph node biopsy.15 patients received postoperative chemotherapy,among those 5 cases also received radiotherapy.During a 32.5-month median follow-up ( 1 month to 8 years),one case with bone metastases died 2 years postoperatively and another one died of multimetastases 7 years later.Conclusions The prognosis of papillary carcinoma of the breast is closely related with its pathology type.For intraductal papillary carcinoma low-traumatic therapy is applicable,while in case of infiltrating papillary carcinoma or invasive micropapillary carcinoma ( IMPC ),more aggressive therapies like that adopted for infiltrating ductal carcinoma are recommended.
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Objective To understand the incidence and the clinicopathological characteristics of breast cancer in Bengbu area.Methods The clinicopathological datas of 446 cases of breast cancer were analyzed retrospectively,which included the clinical profile,tumor size,pathological grading,lymphatic metastasis,pTNM staging,hormonal receptor status and oncogene C-erbB-2 protein expression of some cases.Results Female was found in 99.6% of the patients.The average age was 49.76 years old.Most patients presented firstly by breast masses.The average time was 11.58 months from discovering the mass to final pathological diagnosis.The average longest diameter was 3.06cm.Invasive ductal carcinoma was found in 92.8%.Metastasis was found in 58.8%.Lymphatic metastasis rate was higher in extrinstic and posterior pectoralis monor.ER expression rate was 45.3% and PR,44.2%.The positive rate of C-erbB-2 was 81.4%.C-erbB-2 protein expression was found to be related to the status of ER and PR.Conclusion Breast cancer is more commonly found in middle and old women.Early discovery rate is lower and invasive carcinoma is diagnosed in most cases while metastasis is found in halof the cases.Carrying out breast cancer census is of important significance for prevention and treatment of breast cancer.
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1,while those with regular morphology,clear border,posterior echo enhanced,solid-cystic content,size
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Se realizó un estudio retrospectivo y comparativo tomando como universo 530 pacientes portadoras de cáncer de mama en las etapas I y II de la enfermedad, operadas en el servicio de Cirugía General del Hospital Clínico Quirúrgico "Abel Santamaría Cuadrado" de Pinar del Río, en el período de tiempo comprendido entre el 1ero. de Enero de 1988 y el 31 de Diciembre de 2003, las que fueron intervenidas por diferentes técnicas, 345 (65,09%) con proceder conservador y 185 (34,90%) con técnicas radicales (Patey, mastectomía total ampliada y mastectomía simple). El comportamiento de las recidivas locales fue significativo (p
Aimed at assessing breast cancer behaviour according to operative procedures a retrospective and comparative study was conducted taking as universe 530 female patients suffering from breast cancer (I and II stages of the disease) at Abel Santamaría University Hospital during the period of January 1st, 1998 and December 31, 2003 using different operative procedures, 345 (65.09 %) with conservative operative procedure and 185 (34.90 %) with radical mastectomy (Patey total wide mastectomy and simple mastectomy). Behaviour of local relapses was significant (p < 0.005) in favour of conservative operation 9.59 % and 18.37 % of radical operative procedures; a similar behaviour was present with distant metastases 8.11 % in those treated conservatively and 20.0 % in radical treatments. Global survival in 5 years favoured those patients who underwent conservative operation (90.47 %) in relation to those with radical mastectomy (73.64 %) p < 0.005.
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Objective To investigate the expressions of COX-2 and VEGF-C in breast carcinoma and their correlation with lymphangiogenesis and lymph node metastasis. Methods The expressions of COX-2 and VEGF-C and D2-40 were evaluated in 46 cases of breast carcinoma by immunohistochemical staining SP methods. The lymphatic vessels density (LVD) in tumor was counted through the special marker D2-40. Results The positive rate of COX-2 and of VEGF-C was 73.91% (34/46) and 71.74% (33/46) respectively in breast carcinoma tissues. The positive rate of COX-2 and VEGF-C was 86.48% (32/37) and 81.08% (30/37), and LVD was (13.350?3.097)/?200 in the lymph node metastasis group, while that in non-lymph-node metastasis group was 22.22% (2/9), 33.33% (3/9) and (9.560?2.031)/?200 respectively, with significant difference between the two groups (P
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Breast cancer ranks second to stomach cancer as a primary cancer site. An increasing trend in mortality and morbidity of breast cancet has been shown since 1980s. Studies on migrant populations, in which higher incidences were shown than population in their motherlands, indicated the importance of environmental factors on breast cancer development. Older age, family history of breast cancer, early menarche, late menopause, late full-term pregnancy, never-having had a breast-fed child, and postmenopausal obesity were idenrified as risk factors in Korea. These are not different from risk factors detected in western countries. Nevertheless, a
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Criança , Feminino , Humanos , Gravidez , Neoplasias da Mama , Mama , Epidemiologia , Estradiol , Hormônios Esteroides Gonadais , Mãos , Incidência , Coreia (Geográfico) , Menarca , Menopausa , Mortalidade , Obesidade , Polimorfismo Genético , Fatores de Risco , Neoplasias Gástricas , MigrantesRESUMO
Purpose:To assess the value of 99m Tc tetrofosmin SPECT in discrimination of malignant from benign breast mass.Methods:The trial was prospective, blind and diagnostic. From 2000.6 to 2001.12, one hundred one consecutive patients with breast mass detected by clinical examination were included. After injection of 740 MBq 99m Tc tetrofosmin intravenously in the arm contralateral to the breast lesion, 99m Tc tetrofosmin SPECT was performed additional to the regular diagnostic procedure. All patients underwent operation within one week. Using histological assessment as a golden standard, we calculated sensitivity, specificity, positive and negative predictive value for 99m Tc tetrofosmin SPECT of the breast mass. Results:The sensitivity for palpable breast lesions was 86 3%, specificity 84.0%, positive and negative predictive value were 84.6% and 85.7% respectively. Conclusions:The results suggested that 99m Tc tetrofosmin SPECT is a valuable tool for the evaluation of palpable breast lesions.