BackgroundOocyte maturation arrest and early embryonic arrest are important reproductive phenotypes resulting in female infertility and cause the recurrent failure of assisted reproductive technology (ART). However, the genetic etiologies of these female infertility-related phenotypes are poorly understood. Previous studies have mainly focused on inherited mutations based on large pedigrees or consanguineous patients. However, the role of de novo mutations (DNMs) in these phenotypes remains to be elucidated.ResultsTo decipher the role of DNMs in ART failure and female infertility with oocyte and embryo defects, we explore the landscape of DNMs in 473 infertile parent-child trios and identify a set of 481 confident DNMs distributed in 474 genes. Gene ontology analysis reveals that the identified genes with DNMs are enriched in signaling pathways associated with female reproductive processes such as meiosis, embryonic development, and reproductive structure development. We perform functional assays on the effects of DNMs in a representative gene Tubulin Alpha 4a (TUBA4A), which shows the most significant enrichment of DNMs in the infertile parent-child trios. DNMs in TUBA4A disrupt the normal assembly of the microtubule network in HeLa cells, and microinjection of DNM TUBA4A cRNAs causes abnormalities in mouse oocyte maturation or embryo development, suggesting the pathogenic role of these DNMs in TUBA4A.ConclusionsOur findings suggest novel genetic insights that DNMs contribute to female infertility with oocyte and embryo defects. This study also provides potential genetic markers and facilitates the genetic diagnosis of recurrent ART failure and female infertility.
基金:
This work was supported by the National Natural Science Foundation of China (82288102), the National Key Research
and Development Program of China (2021YFC2700100), the National Natural Science Foundation of China (32130029,
81725006, 82171643, 81971450, 81971382, 82071642, and 82001538), the Project of the Shanghai Municipal Science and
Technology Commission (21XD1420300 and 19JC1411001), the Natural Science Foundation of Shanghai (19ZR1444500
and 21ZR1404800), the Capacity Building Planning Program for Shanghai Women and Children’s Health Service, the
collaborative innovation center project construction for Shanghai Women and Children’s Health, and the Guangdong
Science and Technology Department Guangdong/Hong Kong/Macao Joint Innovation Project (2020A0505140003).
第一作者单位:[1]Fudan Univ, Childrens Hosp, Inst Biomed Sci, Inst Pediat,Shanghai Key Lab Med Epigenet,State Ke, Shanghai 200032, Peoples R China[2]Fudan Univ, Human Phenome Inst, Shanghai 200438, Peoples R China
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通讯作者:
推荐引用方式(GB/T 7714):
Li Qun,Zhao Lin,Zeng Yang,et al.Large-scale analysis of de novo mutations identifies risk genes for female infertility characterized by oocyte and early embryo defects[J].GENOME BIOLOGY.2023,24(1):doi:10.1186/s13059-023-02894-0.
APA:
Li, Qun,Zhao, Lin,Zeng, Yang,Kuang, Yanping,Guan, Yichun...&Sang, Qing.(2023).Large-scale analysis of de novo mutations identifies risk genes for female infertility characterized by oocyte and early embryo defects.GENOME BIOLOGY,24,(1)
MLA:
Li, Qun,et al."Large-scale analysis of de novo mutations identifies risk genes for female infertility characterized by oocyte and early embryo defects".GENOME BIOLOGY 24..1(2023)