Genetic analysis of a Taiwanese family identifies a DMRT3-OAS3 interaction that is involved in human sexual differentiation through the regulation of ESR1 expression.
Fertil Steril
; 114(1): 133-143, 2020 07.
Article
in En
| MEDLINE
| ID: mdl-32553473
ABSTRACT
OBJECTIVE:
To identify the genetic etiology of recurrent disorders of sex development (DSDs) in a Taiwanese family with 46,XY sex reversal and hypospadias.DESIGN:
Genetic and functional studies.SETTING:
Academic hospital. PATIENT(S) A three-generation family consisting of 22 members, with eight cases of 46,XY DSD, of whom four have 46,XY male-to-female sex reversal and four are 46,XY males with hypospadias. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Results of exome sequencing and in vitro protein and RNA analyses. RESULT(S) All patients with DSDs were found to carry heterozygous missense mutations in the doublesex and mab-3-related transcription factor 3 (DMRT3; rs187176004, c.A815C, p.K272T) and 2',5'-oligoadenylate synthetase 3 (OAS3; rs16942374, c.G2606A, p.R869H) genes. The DMRT3 mutation increased estrogen receptor 1 (ESR1) expression. Upon binding with the OAS3-RNase L complex, wild-type DMRT3 promoted degradation of ESR1 mRNA. However, the DMRT3A815C-OAS3G2606A complex interacted less strongly with ESR1 mRNA and RNase L, ultimately preventing ESR1 mRNA degradation. The interactions between DMRT3, OAS3, and RNase L were confirmed in the patients' testis. CONCLUSION(S) Our results indicate that DMRT3 and OAS3 are involved in human DSDs by controlling ESR1 expression.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sex Differentiation
/
Transcription Factors
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2',5'-Oligoadenylate Synthetase
/
Transcription Factors, TFII
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Mutation, Missense
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Estrogen Receptor alpha
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Gonadal Dysgenesis, 46,XY
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Hypospadias
Type of study:
Diagnostic_studies
/
Prognostic_studies
Limits:
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
En
Journal:
Fertil Steril
Year:
2020
Document type:
Article
Affiliation country:
Taiwan