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© 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Early embryonic arrest and fragmentation (EEAF) is a common phenomenon leading to female infertility, but the genetic determinants remain largely unknown. The Moloney sarcoma oncogene (MOS) encodes a serine/threonine kinase that activates the ERK signaling cascade during oocyte maturation in vertebrates. Here, we identified four rare variants of MOS in three infertile female individuals with EEAF that followed a recessive inheritance pattern. These MOS variants encoded proteins that resulted in decreased phosphorylated ERK1/2 level in cells and oocytes, and displayed attenuated rescuing effects on cortical F‐actin assembly. Using oocyte‐specific Erk1/2 knockout mice, we verified that MOS‐ERK signal pathway inactivation in oocytes caused EEAF as human. The RNA sequencing data revealed that maternal mRNA clearance was disrupted in human mature oocytes either with MOS homozygous variant or with U0126 treatment, especially genes relative to mitochondrial function. Mitochondrial dysfunction was observed in oocytes with ERK1/2 deficiency or inactivation. In conclusion, this study not only uncovers biallelic MOS variants causes EEAF but also demonstrates that MOS‐ERK signaling pathway drives human oocyte cytoplasmic maturation to prevent EEAF.

Details

Title
Biallelic mutations in MOS cause female infertility characterized by human early embryonic arrest and fragmentation
Author
Yin‐Li Zhang 1   VIAFID ORCID Logo  ; Zheng, Wei 2   VIAFID ORCID Logo  ; Ren, Peipei 1 ; Hu, Huiling 2 ; Tong, Xiaomei 1 ; Shuo‐Ping Zhang 2 ; Li, Xiang 1 ; Wang, Haichao 1 ; Jun‐Chao Jiang 3 ; Jin, Jiamin 1 ; Yang, Weijie 1 ; Cao, Lanrui 3 ; He, Yuanlin 4 ; Ma, Yerong 1 ; Zhang, Yingyi 1 ; Gu, Yifan 2 ; Hu, Liang 2 ; Luo, Keli 2 ; Gong, Fei 2 ; Guang‐Xiu Lu 2 ; Lin, Ge 2   VIAFID ORCID Logo  ; Heng‐Yu Fan 5   VIAFID ORCID Logo  ; Zhang, Songying 1   VIAFID ORCID Logo 

 Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China 
 Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC‐Xiangya, Changsha, China; Laboratory of Reproductive and Stem Cell Engineering, NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, Central South University, Changsha, China 
 Life Sciences Institute, Zhejiang University, Hangzhou, China 
 Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China 
 Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China; Life Sciences Institute, Zhejiang University, Hangzhou, China 
Section
Articles
Publication year
2021
Publication date
Dec 2021
Publisher
EMBO Press
ISSN
17574676
e-ISSN
17574684
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2607208202
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.