Inflammasome mediates the maturation of interleukin-1β (IL-1β) and IL-18, triggers the pyroptosis and associates with multiple autoimmune diseases. In light of this, we hope to investigate the regulatory role of miRNA-214 in the inflammasome of cervical cancer. With the samples collected from 50 cervical cancer patients and 50 age-matched healthy subjects, real-time PCR and Western blotting were employed to detect the mRNA and/or protein expression profiles of the NOD-like receptor protein family, including NLRP1, NLRP3, NLRC4, Caspase-1, IL-1β, IL-18 and miR-214. Corresponding plasmids were used to transfect the Hela, HCC94, Siha or HUCEL normal cell lines to upregulate or downregulate the expression of targeted genes and to construct the cervical cancer models on rats. In addition, RT-PCR and Western blot were also considered to detect the expression of miR-214 and pyroptosis-related genes, while the pyroptosis of cells was evaluated by using the caspase-1 activity detection kit. Downregulation of miR-214 was found in the cervical cancer patients and the cervical cancer cell lines (** P <0.01), while overexpression of miR-214 could induce the pyroptosis of cervical cancer cell by targeting NLRP3. In cervical cancer patients, miR-214 and NLRP3 are downregulated, while upregulation of miR-214, by enhancing the expression of NLRP3, can advance the pyroptosis of cervical cancer cells. In addition, we, for the first time, clarify the correlation of cervical cancer with the miR-214 and NLRP3.
Background and objectives: The prognostic role of a disintegrin and metalloproteinase (ADAM) 17 has been widely assessed in gastric cancer. However, the results are inconsistent. We performed a meta-analysis to evaluate the prognostic significance of ADAM17 and its association with clinicopathological parameters. Methods: The databases of PubMed, Web of Science, and Embase were searched for relevant articles published up to April 2020. The reported hazard ratios (HRs) and odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) were pooled to evaluate the strength of the association. Stata 12.1 was used to perform statistical analyses. Results: Seven studies, including 1757 patients, were screened for the meta-analysis. Compared with the high ADAM17 expression group, the pooled HR was higher in the low ADAM17 expression group (HR = 2.04, 95% CI 1.66–2.50; I2 = 18.1%; p = 0.299). High ADAM17 expression was also related to the tumor node metastasis (TNM) stages (OR = 4.09, 95% CI 1.85–9.04; I2 = 84.1%; p = 0.000), lymph node metastasis (OR = 3.08, 95% CI 1.13–8.36; I2 = 79.7%; p = 0.007), and ages (OR = 1.65, 95% CI 1.24–2.21; I2 = 0%; p = 0.692) of the gastric patients. Conclusions: This meta-analysis revealed that ADAM17 is a significant biomarker for poor prognosis in gastric cancer.
Chromobox (CBX) proteins were suggested to exert epigenetic regulatory and transcriptionally repressing effects on target genes and might play key roles in the carcinogenesis of a variety of carcinomas. Nevertheless, the functions and prognostic significance of CBXs in gastric cancer (GC) remain unclear. The current study investigated the roles of CBXs in the prognosis of GC using the Oncomine, The Gene Expression Profiling Interactive Analysis (GEPIA), UALCAN, The Cancer Genome Atlas (TCGA), and cBioPortal databases. CBX1/2/3/4/5 were significantly upregulated in GC tissues compared with normal tissues, and CBX7 was downregulated. Multivariate analysis showed that high mRNA expression levels of CBX3/8 were independent prognostic factors for prolonged OS in GC patients. In addition, the genetic mutation rate of CBXs was 37% in GC patients, and genetic alterations in CBXs showed no association with OS or disease-free survival (DFS) in GC patients. These results indicated that CBX3/8 can be prognostic biomarkers for the survival of GC patients.
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