Gene expression and functional abnormalities in XX/Sry Leydig cells

Autor: Shogo Yanai, Takashi Baba, Kai Inui, Kanako Miyabayashi, Soyun Han, Miki Inoue, Fumiya Takahashi, Yoshiakira Kanai, Yasuyuki Ohkawa, Man Ho Choi, Ken-ichirou Morohashi
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Druh dokumentu: article
ISSN: 2045-2322
DOI: 10.1038/s41598-020-80741-z
Popis: Abstract The SRY gene induces testis development even in XX individuals. However, XX/Sry testes fail to produce mature sperm, due to the absence of Y chromosome carrying genes essential for spermatogenesis. XX/Sry Sertoli cells show abnormalities in the production of lactate and cholesterol required for germ cell development. Leydig cells are essential for male functions through testosterone production. However, whether XX/Sry adult Leydig cells (XX/Sry ALCs) function normally remains unclear. In this study, the transcriptomes from XY and XX/Sry ALCs demonstrated that immediate early and cholesterogenic gene expressions differed between these cells. Interestingly, cholesterogenic genes were upregulated in XX/Sry ALCs, although downregulated in XX/Sry Sertoli cells. Among the steroidogenic enzymes, CYP17A1 mediates steroid 17α-hydroxylation and 17,20-lyase reaction, necessary for testosterone production. In XX/Sry ALCs, the latter reaction was selectively decreased. The defects in XX/Sry ALCs, together with those in the germ and Sertoli cells, might explain the infertility of XX/Sry testes.
Databáze: Directory of Open Access Journals
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