RESUMO
The purpose of this retrospective study was to evaluate the clinicopathological features of papillary thyroid microcarcinoma (PTMC) and the lymph node metastasis of PTMC. We retrospectively reviewed a total of 1433 patients with PTMC. The analysis data including demographics, tumor size, multifocality, bilateral, invasion capsule and Hashimoto's thyroiditis were collected from XinJiang, China. Univariate and multivariate analyses were performed to identify the clinicopathologic predictors of central lymph node metastasis: male gender [odds ratio (OR) = 2.358, p < 0.001], age ≤ 45 years (OR = 2.302, p 6.5 mm (OR = 2.388, p < 0.001), adjacent or invasion capsule (OR = 1.750, p = 0.002), Hashimoto's thyroiditis (OR = 0.501, p < 0.001). The optimal critical value of the number of dissected lymph nodes was found to be 8.5 using ROC analysis, with a sensitivity and specificity of 41.8% and 75.5%, respectively. This study suggests that evaluation of nodal metastasis is required to guide the surgical treatment of PTMC patients.
Assuntos
Neoplasias da Glândula Tireoide , Tireoidite , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Metástase Linfática/patologia , Neoplasias da Glândula Tireoide/patologia , Fatores de Risco , Linfonodos/patologia , Tireoidite/patologiaRESUMO
Synovial sarcoma (SS) is a highly aggressive malignant soft tissue sarcoma with typical characteristics of both epithelial and mesenchymal differentiation. Matrix metalloproteinase-14 (MMP-14) is reported to play an important role in some of these tumors. It induces epithelial-to-mesenchymal transition (EMT) in some carcinomas, such as breast and prostate cancers. However, the role of MMP-14 in the pathogenesis of SS remains unclear. Therefore, we investigated the role of MMP-14 and EMT/mesenchymal-to-epithelial transition in SS. The expression of MMP-14 and EMT-related proteins was determined in 37 SS cases and transfected cells by immunohistochemistry staining and Western blotting. The invasion ability of transfected cells was determined by transwell invasion assay. The expression rates of MMP-14, E-cadherin, N-cadherin, and vimentin were 75.7%, 54.1%, 75.7%, and 100%, respectively, in the cases of SS. The expression of MMP-14 correlated negatively with E-cadherin and positively with N-cadherin in monophasic fibrous SS. The MMP-14 protein expression was higher in stage III/IV than in stage I/II. After MMP-14 was transfected into SW982 cells, MMP-14, N-cadherin, and vimentin expression was up-regulated, and E-cadherin expression was down-regulated. High expression of MMP-14 enhanced the invasive ability of SW982 cells. Our findings suggest that MMP-14 enhances the invasive ability of SW982 cells by inducing EMT. By this action, it may play an important role in the occurrence and development of SS.
Assuntos
Transição Epitelial-Mesenquimal/fisiologia , Metaloproteinase 14 da Matriz/genética , Sarcoma Sinovial/genética , Sarcoma Sinovial/patologia , Adulto , Idoso , Criança , Regulação para Baixo , Feminino , Humanos , Imuno-Histoquímica/métodos , Masculino , Pessoa de Meia-Idade , Fatores de Transcrição da Família Snail/metabolismo , Regulação para Cima , Vimentina/metabolismo , Adulto JovemRESUMO
This meta-analysis was conducted to evaluate the association of CD133 and Nestin with epithelial ovarian cancer. Databases (PubMed, EMBASE, Web of Science, China National Knowledge Infrastructure, Wanfang) were searched for relevant studies updated in August 2017. CD133 and Nestin expression were estimated by immunohistochemistry. Statistical analysis was performed by RevMan. A total of 18 studies were included in this meta-analysis. High expression of both CD133 and Nestin was associated with late International Federation of Gynecology and Obstetrics stage (p < 0.00001), larger size of residual cancer (p < 0.05). CD133 overexpression was also associated with higher histological grade (p = 0.0006) and lymph node metastases (p < 0.00001). Nestin overexpression was associated with a higher rate of treatment resistance (p = 0.0007). Positive expression of CD133 and Nestin may be associated with aggressive biological behaviors in epithelial ovarian cancer.
Assuntos
Antígeno AC133/metabolismo , Biomarcadores Tumorais , Neoplasias Epiteliais e Glandulares/diagnóstico , Neoplasias Epiteliais e Glandulares/metabolismo , Nestina/metabolismo , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/metabolismo , Antígeno AC133/genética , Carcinoma Epitelial do Ovário , Feminino , Expressão Gênica , Humanos , Gradação de Tumores , Metástase Neoplásica , Estadiamento de Neoplasias , Neoplasias Epiteliais e Glandulares/genética , Nestina/genética , Razão de Chances , Neoplasias Ovarianas/genética , Prognóstico , Viés de PublicaçãoRESUMO
AIM: This meta-analysis was conducted to evaluate the clinicopathological significance of Notch1 expression in patients with colorectal cancer (CRC). METHODS: Available articles were searched from diverse databases, and the meta-analysis was done by using Stata 12.0 software. RESULTS: Thirteen studies were included in this analysis (3401 samples). The Notch1 expression in CRC tissues was significantly higher than that in normal tissues statistically (OR: 15.46; 95% CI: 8.11-29.45; p = 0.003), and were associated with lymph node metastasis, tumor stage, depth of infiltration and histological differentiation. DISCUSSION: There is a close relationship between higher Notch1 expression in CRC. Notch1 may be involved in tumor progression, invasion and metastasis with CRC. CONCLUSION: Notch1 overexpression in CRC suggested aggressive biological behaviors and thus implying that Notch1 may be a useful biomarker in CRCs.