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Single-cell transcriptome atlas of the human corpus cavernosum
LiangYu Zhao1,2, Sha Han1, HengChuan Su3
1Department of Andrology, the Center for Men's Health, Urologic Medical Center, Shanghai Key Laboratory of Reproductive Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China.
Nature Communications
|July 25, 2022
Summary
This study maps human corpus cavernosum cells, revealing fibroblasts regulate erection. Findings offer insights into erectile dysfunction and potential new therapies.
Area of Science:
- Urology
- Molecular Biology
- Cell Biology
Background:
- The corpus cavernosum is crucial for penile erection, but its cellular complexity and molecular signaling remain unclear due to limited sample access.
- Dysfunction of the corpus cavernosum leads to significant physiological and psychological issues, highlighting the need for deeper understanding.
Purpose of the Study:
- To elucidate the cellular heterogeneity and molecular signaling networks within the human corpus cavernosum.
- To identify key cellular players and pathways involved in normal erection and organic erectile dysfunction.
Main Methods:
- Single-cell RNA sequencing of 64,993 cells from human corpus cavernosum samples of males with normal erection and erectile dysfunction.
- Cell communication analysis to identify signaling networks.
- Immunohistochemical staining for spatial distribution mapping of cell subclusters.
Main Results:
- Fibroblasts identified as central to the paracrine signaling network, regulating microenvironmental homeostasis in the corpus cavernosum.
- Detailed cellular heterogeneity map including fibroblast, smooth muscle, and endothelial subclusters with spatial distribution.
- Candidate regulatory signaling pathways implicated in the pathology of erectile dysfunction identified.
Conclusions:
- This research provides a comprehensive molecular and spatial map of the human corpus cavernosum microenvironment.
- The findings offer a foundational reference for developing novel therapeutic strategies for erectile dysfunction.
