首页> 外文期刊>Comparative Medicine >Epididymal Cribriform Hyperplasia with Nuclear Atypia in p53 Homozygous Knockout Mice on a Mixed 129/Sv-FVB/N Background
【24h】

Epididymal Cribriform Hyperplasia with Nuclear Atypia in p53 Homozygous Knockout Mice on a Mixed 129/Sv-FVB/N Background

机译:在129 / Sv-FVB / N混合背景下p53纯合基因敲除小鼠的核异型的附睾伴筛状增生

获取原文
           

摘要

Epididymalcribriformhyperplasia(ECH)isavariantofnormalepididymalhistologicfeaturesinmen,andhasalsobeenreportedinrats,mice,dogs,cats,andbulls.Theepididymalchangehasbeenassociatedwithaging,testicularatrophy,cryptorchidism,andgermcelltumors.Epididymalcribriformhyperplasiawasobservedinp53homozygousknockoutmiceonamixed129/Sv-FVB/Nbackground,butnotinwild-typeorheterozygousmice.Theaimofthestudyreportedherewastodeterminetheprevalenceandcharacterizethemorphologic,immunohistochemical,andultrastructuralfeaturesofECHinthesemice.Epididymalcribriformhyperplasiawaspresentin88%(72/82)ofmalemiceranginginagefromsevento65weeks.Thelesionwascharacterizedmicroscopicallybyepithelialcellswithatypicalhyperchromaticnuclei,vacuolization,intratubularluminaformation,infrequentapoptosis,andraremitoticfigures.Incontrasttogermcells,thecellsofECHdidnotexpress#945;-fetoprotein,carcinoembryonicantigen,orS-100.Ultrastructurally,thecellswerepleomorphicwithstereociliaattheirapicalbordersandwithinintratubularlumina,andweresupportedbyabasementmembrane.Although14%(10/72)ofmicehadconcomitanttesticularneoplasia,ECHdidnotappeartobeapreneoplasticchange.Investigatorsusingthesemiceformodelinghumandiseaseshouldbeawareofthebackgroundprevalenceofthislesion.
机译:Epididymalcribriformhyperplasia(ECH)isavariantofnormalepididymalhistologicfeaturesinmen,andhasalsobeenreportedinrats,老鼠,狗,猫,andbulls.Theepididymalchangehasbeenassociatedwithaging,testicularatrophy,隐睾,andgermcelltumors.Epididymalcribriformhyperplasiawasobservedinp53homozygousknockoutmiceonamixed129 / SV-FVB / Nbackground,butnotinwild-typeorheterozygousmice.Theaimofthestudyreportedherewastodeterminetheprevalenceandcharacterizethemorphologic,免疫组化,andultrastructuralfeaturesofECHinthesemice.Epididymalcribriformhyperplasiawaspresentin88%(82分之72)ofmalemiceranginginagefromsevento65weeks病变的特征是上皮细胞具有典型的超高色核,真空化,管状内管形成,少见的凋亡,无绒毛的有丝分裂的形态。尽管有14%(10/72)的微囊癌伴有睾丸网膜炎,但ECH并未显示出塑性增生。研究人员应使用仿效人类疾病的小鼠研究此病的背景发生率。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号