Diverse roles of miR-335 in development and progression of cancers.

MicroRNAs (miRNAs), a series of small noncoding RNAs that regulate gene expression at the post-transcriptional/translational level, are pivotal in cell differentiation, biological development, occurrence, and development of diseases, especially in cancers. Early studies have shown that miRNA-335 (miR-335) is widely dysregulated in human cancers and play critical roles in tumorigenesis and tumor progression. In this review, we aim to summarize the regulation of miR-335 expression mechanisms in cancers.

miR-222 induces Adriamycin resistance in breast cancer through PTEN/Akt/p27 pathway.

The high resistant rate of Adriamycin (Adr) is associated with a poor prognosis of breast cancer in women worldwide. Since miR-222 might contribute to chemoresistance in many cancer types, in this study, we aimed to investigate its efficacy in breast cancer through PTEN/Akt/p27 pathway. Firstly, in vivo, we verified that miR-222 was upregulated in chemoresistant tissues after surgery compared with the paired preneoadjuvant samples of 21 breast cancer patients.

The role of ADAM17 in tumorigenesis and progression of breast cancer.

A disintegrin and metalloproteinase (ADAM) family members are known to process the target membrane-bound molecules through the quick induction of their protease activities under interaction with other molecules, which have diverse roles in tissue morphogenesis and pathophysiological remodeling. Among these, ADAM17 is a membrane-bound protease that sheds the extracellular domain of various receptors or its ligands from the cell membrane and subsequently activates downstream signaling transduction pathways. Importantly, breast cancer remains a mainspring of cancer-induced death in women, and numerous regulatory pathways have been implicated in the formation of breast cancer.

Expression and prognostic value of E2F activators in NSCLC and subtypes: a research based on bioinformatics analysis.

E2F activators (E2F1-3) codify a family of transcription factors (TFs) in higher eukaryotes. E2F activators are involved in the cell cycle regulation and synthesis of DNA in mammalian cells, and their overexpression has been detected in many human cancers. However, their clinical significance has not been deeply researched in non-small-cell lung cancer (NSCLC), and bioinformatics analysis has never been reported to explore their clinical role in NSCLC.

MicroRNA-29a contributes to drug-resistance of breast cancer cells to adriamycin through PTEN/AKT/GSK3β signaling pathway.

Purpose: Acquisition of resistance to adriamycin (ADR) during the treatment of breast cancer is still a major clinical obstacle. MicroRNAs (miRNAs) are a class of short noncoding RNAs which associate with cancer chemoresistance through regulating gene expression by targeting mRNAs. Our previous microarray found that miR-29a may strongly confer the ADR resistance of breast cancer cells.

miR-4443 Participates in the Malignancy of Breast Cancer.

Purpose: Chemo-resistance is the leading cause of failure in cancer therapy, however, much remains to be understood about the intrinsic mechanisms. In the present study, we discovered the novel miR-4443 that regulated malignancy of breast cancer both in vitro and in vivo.

Methods: We examined the expression of miR-4443 in MDA-MB-231/S and MDA-MB-231 Epirubicin-resistant cell lines with 76 breast cancer formalin-fixed paraffin-embedded tissues by real-time PCR.

Poly (C)-binding protein 2 (PCBP2) promotes the progression of esophageal squamous cell carcinoma (ESCC) through regulating cellular proliferation and apoptosis.

PCBP2 (Poly(C)-binding protein 2) is a member of PCBP family, which has many functions including mRNA stabilization, translational silence and translational enhancement performed by their poly(C)-binding ability. The abnormal expression of PCBP2 was correlated with various carcinomas. However, the significance and mechanism of PCBP2 in esophageal squamous cell carcinoma (ESCC) progression remain unclear.

Crosstalk between TGF-β signaling and miRNAs in breast cancer metastasis.

Transforming growth factor-β (TGF-β) signaling pathway is a key regulator of various cancer biologies, including cancer cell migration, invasion, angiogenesis, proliferation, as well as apoptosis, and it is one of indispensable signaling pathways during cancer metastasis. TGF-β signaling pathway can regulate and be regulated by a series of molecular and signaling pathways where microRNAs (miRNAs) seem to play important roles. miRNAs are small non-coding RNAs that can regulate expressions of their target genes.

Overexpression of Dishevelled-2 contributes to proliferation and migration of human esophageal squamous cell carcinoma.

Dishevelled-2 (Dvl2) was associated with tumor cell proliferation and migration. We aimed to examine the mechanism of Dvl2 in esophageal squamous cell carcinoma (ESCC). Dvl2 was overexpressed in human ESCC tissues and cell lines ECA109 and TE1 cells.

MicroRNA-3646 Contributes to Docetaxel Resistance in Human Breast Cancer Cells by GSK-3β/β-Catenin Signaling Pathway.

Acquisition of resistance to docetaxel (Doc) is one of the most important problems in treatment of breast cancer patients, but the underlying mechanisms are still not fully understood. In present study, Doc-resistant MDA-MB-231 and MCF-7 breast cancer cell lines (MDA-MB-231/Doc and MCF-7/Doc) were successfully established in vitro by gradually increasing Doc concentration on the basis of parental MDA-MB-231 and MCF-7 cell lines (MDA-MB-231/S and MCF-7/S). The potential miRNAs relevant to the Doc resistance were screened by miRNA microarray.

Interferon-Gamma Release Assays for the Diagnosis of Tuberculosis: A Systematic Review and Meta-analysis.

Background And Objective: We conducted a systematic review and meta-analysis to compare the accuracy of the interferon-gamma release assays (IGRAs) and the tuberculin skin test (TST) for the diagnosis of Mycobacterium tuberculosis infection.

Methods: We systematically searched PubMed, Embase, Cochrane library, and Web of Science databases for relevant published studies in recent decades and calculated pooled estimated sensitivities, specificities, DOR, and SROC curve of the QFT-IT, T-SPOT and TST. Random-effects models were used to assess estimates from studies with significant heterogeneity.

MicroRNA expression profiles of drug-resistance breast cancer cells and their exosomes.

Exosomes have been shown to transmit drug resistance through delivering miRNAs. We aimed to explore their roles in breast cancer. Three resistant sublines were established by exposing parental MDA-MB-231 cell line to docetaxel, epirubicin and vinorelbine, respectively.

Body mass index and mortality in prostate cancer patients: a dose-response meta-analysis.

Background: Previous studies concerning the association between body mass index (BMI) and mortality in prostate cancer yielded mixed results. We investigated the association by performing a meta-analysis of all available studies.

Methods: Relevant studies were identified by searching PubMed and EMBASE to August 2015.

WT1-AS promotes cell apoptosis in hepatocellular carcinoma through down-regulating of WT1.

Background: The antisense of the tumor suppressor gene WT1 (WT1-AS) is a long non-coding RNA. The role of WT1-AS in the development of hepatocellular carcinoma (HCC) has not yet been elucidated.

Methods: Quantitative real-time PCR and western blot analyses were used to measure levels of WT1-AS and its related genes in tumor and corresponding adjacent tumor tissues of HCC patients.

MicroRNA-339, an epigenetic modulating target is involved in human gastric carcinogenesis through targeting NOVA1.

The role of miR-339 in human gastric cancer (GC) remains unclear. Here, we found that miR-339 is remarkably decreased in primary GC tissues. Overexpression of miR-339 in GC cells significantly suppressed proliferation, migration, invasion, and tumorigenicity.

Perioperative propofol-paravertebral anesthesia decreases the metastasis and progression of breast cancer.

Propofol-paravertebral anesthesia (PPA) is a unique combination of paravertebral nerve blocks (PVBs) and propofol that regulates the cellular microenvironment during surgical period. Growing evidence points to its ability to attenuate perioperative immunosuppression of cancers. Abundant studies show that cancer patients who undergo perioperative PPA exhibit less recurrence as well as metastasis.

β-Blocker use and mortality in cancer patients: systematic review and meta-analysis of observational studies.

A number of epidemiologic studies have attempted to link the use of β blockers to mortality in cancer patients, but their findings have been inconclusive. A meta-analysis was carried out to derive a more precise estimation. Relevant studies were identified by searching PubMed and EMBASE to May 2015.

Aspirin use and risk of breast cancer: systematic review and meta-analysis of observational studies.

Previous studies concerning the association between aspirin use and breast cancer risk yielded inconsistent results. We aimed to investigate the association by meta-analysis. PubMed and EMBASE were searched for relevant studies.

[Analysis of C.3925_3929 deletional mutations of APC gene in pedigrees with familial adenomatous polyposis].

Objective: To analyze the characteristics of germline mutations of adenomatous polyposis coli (APC) gene in pedigrees affected with familial adenomatous polyposis (FAP).

Methods: Genomic DNA was extracted from peripheral blood samples from members of the 13 FAP pedigrees. Multiplex ligation-dependent probe amplification (MLPA) was used to detect large fragment deletions of the APC gene.

Physical Activity and Risk of Lung Cancer: A Meta-analysis.

Objective: Previous studies concerning the association between physical activity (PA) and risk of lung cancer yielded mixed results. We investigated the association by performing a meta-analysis.

Data Sources: Relevant studies were identified by searching PubMed and EMBASE to January 2014.

Analysis of Small Fragment Deletions of the APC gene in Chinese Patients with Familial Adenomatous Polyposis, a Precancerous Condition.

Background: Familial adenomatous polyposis (FAP) is an autosomal dominant inherited disease mainly caused by mutations of the adenomatous polyposis coli (APC) gene with almost complete penetrance. These colorectal polyps are precancerous lesions that will inevitable develop into colorectal cancer at the median age of 40-year old if total proctocolectomy is not performed. So identification of APC germline mutations has great implications for genetic counseling and management of FAP patients.

Prognostic Value of MicroRNA-182 in Cancers: A Meta-Analysis.

Objective: MicroRNA-182 (miR-182) exhibits altered expression in various cancers. The aim of this study was to investigate the predictive value of miR-182 expression for cancer patient survival.

Methods: Eligible studies were identified through multiple search strategies, and the hazard ratios (HRs) for patient outcomes were extracted and estimated.

Statin use and mortality in cancer patients: Systematic review and meta-analysis of observational studies.

Background: Previous studies have examined the effect of statin use on the mortality in cancer patients, but the results are inconsistent. A meta-analysis was performed to assess the association with all available studies.

Methods: Relevant studies were identified by searching PubMed and EMBASE to April 2015.

Association between aspirin use and mortality in breast cancer patients: a meta-analysis of observational studies.

Previous studies have examined the effect of aspirin intake on the mortality in breast cancer, but the results are inconsistent. A meta-analysis was performed to assess the association with all available studies. Relevant studies were identified by searching PubMed and EMBASE to November 2014.