[Molecular markers for predicting the success of micro-TESE in non-obstructive azoospermia].

Non-obstract azoospermia (NOA) is a serious male infertility disease. At present, testicular sperm extraction (micro-TESE) is performed in combination with intracytoplasmic sperm injection (ICSI) technology, NOA patients can have their own consanguine offspring. However, due to the invasiveness and uncertainty of micro-TESE surgery, it is difficult for patients to accept it. Therefore, finding an accurate method to predict the possibility of micro-TESE successful sperm retrival would be beneficial to azoospermia patients. Many genes are transcribed and expressed during spermatogenesis, and molecular assays have irreplaceable sensitivity and specificity in predicting the success sperm retrivel of micro-TESE. This article reviews the methods to predict the success sperm retrivel of micro-TESE including mRNA, non-coding RNA (piRNA, microRNA, cirRNA, tFRNAs) and some protein so far, to provide certain reference value for clinical and subsequent research.

Comprehensive circRNA/miRNA/mRNA analysis reveals circRNAs protect against toxicity induced by BPA in GC-2 cells.

Aim: To identify the circRNAs expression pattern and roles in bisphenol A (BPA) induced germ cell apoptosis. Materials & methods: We performed circRNA/miRNA/mRNA-Seq in 120 µM BPA treated and nontreated GC-2 cells. Bioinformatic analysis, qPCR, apoptosis assays, luciferase report were done in the function analysis. Results: A large number of apoptosis related circRNAs/miRNAs/mRNAs were differentially expressed with competing endogenous RNA network constructed. Interestingly, most investigated upregulated circRNAs, including circDcbld2, circMapk1, circMpp6 and circTbc1d20 showed protective effects in antagonizing BPA toxicity, with the effects individually and synergistically observed. CircMapk1 may take its role by sponging miR-214-3p. Conclusion: circRNAs can play protective roles via sponging miRNAs in toxicity. Some circRNAs may serve as novel targets for BPA toxicity intervention or as biomarkers.