Related Experiment Video
Updated: Jan 10, 2026
A Rapid Filter Insert-based 3D Culture System for Primary Prostate Cell Differentiation
Published on: February 13, 2017
Reprogramming the GRHL2-CDK19 axis by gene therapy alleviates prostate aging
Guoqiang Sun1, Zan He2, Dongliang Lv1,3
1State Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Abstract:
The prostate is a multifunctional organ of the male reproductive system whose aging process impairs sexual and urinary function and fertility and increases disease susceptibility, thereby compromising quality of life. However, the mechanisms underlying human prostate aging remain poorly understood. Here we integrated single-nucleus transcriptomics and histological analyses to elucidate the aging mechanisms of the primate prostate. We identified epithelial cell senescence, chronic inflammation and fibrosis as key hallmarks of prostate aging. In young epithelial cells, GRHL2 promotes CDK19 transcription, which sequesters p53, leading to the suppression of p21Waf1/Cip1. Aging-related downregulation of GRHL2 releases p53 from the CDK19-p53 complex, activating p21Waf1/Cip1 transcription and inducing cell senescence. Accordingly, a single injection of a GRHL2-based gene therapy strategy delayed prostate aging and alleviated age-related urinary dysfunction in vivo. Our findings elucidate key mechanisms of primate prostate aging and provide a foundation for developing therapies targeting prostate aging and associated pathologies.
Insights
Prostate aging involves cell senescence, inflammation, and fibrosis. A GRHL2 gene therapy approach successfully delayed aging and improved urinary function in primates.
Area of Science:
- Urology
- Aging Research
- Molecular Biology
Background:
- The aging prostate significantly impacts male quality of life, affecting sexual and urinary functions, fertility, and disease susceptibility.
- Mechanisms driving human prostate aging are not well understood, necessitating further research.
Purpose of the Study:
- To elucidate the molecular mechanisms underlying primate prostate aging.
- To identify key cellular and molecular changes associated with prostate aging.
Main Methods:
- Integration of single-nucleus transcriptomics and histological analyses in primate prostates.
- Investigation of the role of GRHL2, CDK19, p53, and p21Waf1/Cip1 in prostate aging.
Main Results:
- Identified epithelial cell senescence, chronic inflammation, and fibrosis as hallmarks of prostate aging.
- Demonstrated that GRHL2 downregulation in aging leads to p53 activation and p21Waf1/Cip1-induced senescence.
- Showcased that GRHL2-based gene therapy effectively delays prostate aging and alleviates urinary dysfunction in vivo.
Conclusions:
- Elucidated key molecular mechanisms driving primate prostate aging, focusing on the GRHL2-CDK19-p53-p21Waf1/Cip1 pathway.
- Established epithelial cell senescence as a critical factor in prostate aging.
- Provided a foundation for developing novel therapeutic strategies targeting prostate aging and related conditions.
Related Concept Videos
01:29Somatic to iPS Cell Reprogramming
02:34Inhibition of Cdk Activity
02:23Abnormal Proliferation