期刊
ENDOCRINOLOGY
卷 161, 期 6, 页码 -出版社
ENDOCRINE SOC
DOI: 10.1210/endocr/bqaa050
关键词
Estrogen Insensitivity Syndrome; ESR1 gene; ESR1 Q375H mutant; ESR1 R394H mutant; Esr1-Q mice
资金
- Division Intramural Research of the NIEHS/NIH [Z01 ES70065, Z01-ES043010]
Estrogen insensitivity syndrome (EIS) arises from rare mutations in estrogen receptor-alpha (ER alpha, encoded by ESR1 gene) resulting in the inability of estrogen to exert its biological effects. Due to its rarity, mutations in ESR1 gene and the underlying molecular mechanisms of EIS have not been thoroughly studied. Here, we investigate known ESR1 mutants, Q375H and R394H, associated with EIS patients using in vitro and in vivo systems. Comparison of the transcriptome and deoxyribonucleic acid methylome from stable cell lines of both Q375H and R394H clinical mutants shows a differential profile compared with wild-type ERa, resulting in loss of estrogen responsiveness. Molecular dynamic simulation shows that both ESR1 mutations change the ERa conformation of the ligandreceptor complexes. Furthermore, we generated a mouse model Esr1-Q harboring the human mutation using CRISPR/Cas9 genome editing. Female and male Esr1-Q mice are infertile and have similar phenotypes to aERKO mice. Overall phenotypes of the Esr1-Q mice correspond to those observed in the patient with Q375H. Finally, we explore the effects of a synthetic progestogen and a gonadotropin-releasing hormone inhibitor in the Esr1-Q mice for potentially reversing the impaired female reproductive tract function. These findings provide an important basis for understanding the molecular mechanistic consequences associated with EIS.
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