TRIM59 is required for mouse GC-1 cell maintenance through modulating the ubiquitination of AXIN1
Tiantian Wu,
Hui Zhou,
Lulu Wang,
Jianxin Tan,
Wenxin Gao,
Yibo Wu,
Dan Zhao,
Cong Shen,
Bo Zheng,
Xiaoyan Huang,
Binbin Shao
Affiliations
Tiantian Wu
State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical University, Suzhou, 215002, China; Department of Histology and Embryology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
Hui Zhou
Human Reproductive and Genetic Center, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
Lulu Wang
Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, China
Jianxin Tan
Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, China
Wenxin Gao
Department of Histology and Embryology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
Yibo Wu
Human Reproductive and Genetic Center, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
Dan Zhao
Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
Cong Shen
State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical University, Suzhou, 215002, China
Bo Zheng
State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical University, Suzhou, 215002, China; Corresponding author.
Xiaoyan Huang
Department of Histology and Embryology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China; Corresponding author.
Binbin Shao
Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, China; Corresponding author.
Tripartite motif-containing protein 59 (TRIM59) is a biomarker for multiple tumors with crucial roles. However, the specific role of TRIM59 in germ cells remains largely unknown. Here, we investigated the effects and underlying regulatory mechanisms of TRIM59 on germ cells using the mouse spermatogonial cell line GC-1. Our results demonstrated that TRIM59 promoted proliferation and inhibited apoptosis of GC-1 cells. Mechanistically, TRIM59 maintained GC-1 cell behaviors through ubiquitination of AXIN1 to activate β-catenin signaling. Furthermore, activation of β-catenin signaling reversed the effects mediated by Trim59 knockdown in GC-1 cells. Collectively, our study revealed a major role and regulatory mechanism of TRIM59 in GC-1 cells, which sheds new light on the molecular pathogenesis of defects in spermatogenesis and may provide therapeutic targets for treatment of male infertility.
