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Autophagy is increased in cryptorchid testis resulting in abnormal spermatozoa

Asian Journal of Andrology 2019年第6期21卷 570-576页

作者： Marina G Yefimova Antoine Buschiazzo Agnes Burel Marie-Therese Lavault Celine Pimentel Guilhem Jouve Sylvie Jaillard bernard jegou Nicolas Bourmeyster Celia Ravel Univ Rennes CHU RennesLaboratoire de Biologie de la Reproduction-CECOSInsermEH ESPIrset(Institut de recherche en santeenvironnement et travail)-UMR_S 1085Rennes F-35000France Sechenov Institute of Evolutionary Physiology and Biochemistry Russian Academy of Sciences194223 St-PetersburgRussia Univ Rennes Biosit Platform-MRICRennes 35000France Univ Rennes CHU RennesDepartment of Gynecology Obstetric and Human ReproductionRennes 35000France Univ Rennes CHU RennesDepartment of CytogeneticIrset(Institute for Environmental and Occupational Health)-UMR_S 1085Rennes 35000France Univ Rennes InsermEH ESPIrset(Institute for Environmental and Occupational Health)-UMR_S 1085Rennes F-35000France University of Poitiers-CHU Poitiers STIM ERL 7003 CNRSPoitiers 86021France

Autophagy is invoIved in spermatogenesis by regulating germ cell *** catabolic process increases with hyperthermic conditions to prevent the accumulation of damaged *** is associated with impairment of germ cell maturation revealed by the presence of immature forms of sperm cells in *** aim of the present study was to evaluate the status of autophagy in sperm cells from cryptorchid *** samples of cryptorchid patients and normozoospermic controls were analyzed by immuno cytochemistry and electron *** protei ns,autophagy-related protein 9(ATG9)and microtubule-associated protein,lA/lB-light chain 3(LC3)were localized by immunocytochemistry on the acrosome and on the equatorial segment of sperm ***3 was also detected in the midpiece of cryptorchid sperm *** substrate p62 protein was present in the acrosome and in the postequatorial segment of sperm in control samples,but not in the cryptorchid *** electron microscopy revealed double-membrane-limited autophagosomes in postequatorial part of spermatozoa head and midpiece in cryptorchid *** degraded mitochondria were frequently discerned in autophagic *** conclusion,autophagy is increased in sperm cells from patients with cryptorchid history comparatively to *** work provides insights into the role of autophagy in the maturation and survival of human male gametes in pathological ***,regulating autophagy could represent a potential way to improve sperm quality in cryptorchid men.

关键词： autophagy cryptorchidism mitophagy spermatozoa

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