Substance P Restores Sperm Production in Infertile Mice
The neuropeptide substance P restored spermatogenesis and improved sperm quality in a mouse model of chemotherapy-induced infertility by stimulating spermatogonia proliferation through ERK1/2 signaling.
Quick Facts
What This Study Found
Substance P at 5 nmol/kg restored spermatogenesis in busulfan-treated azoospermic mice by stimulating spermatogonia proliferation via NK1R-ERK1/2 signaling.
Key Numbers
5 nmol/kg SP; increased ZBTB16+, LIN28+, STRA8+ spermatogonia; 100 nM SP stimulated proliferation via ERK1/2; RP67580 blocked effect
How They Did This
Busulfan-induced non-obstructive azoospermia mouse model. SP treatment (5 nmol/kg). In vitro seminiferous tubule culture and GC-1 spg cell line proliferation assays. NK-1R antagonist (RP67580) studies. Spermatogonia markers: ZBTB16+, LIN28+, STRA8+.
Why This Research Matters
Male infertility due to chemotherapy is a growing concern as cancer survival improves. Finding that a known neuropeptide can restore sperm production opens a potential new therapeutic approach for chemotherapy-induced infertility.
The Bigger Picture
Substance P has been primarily studied in pain and inflammation, but this surprising fertility role reveals an entirely new function for this neuropeptide. It suggests the nervous system plays a more direct role in reproductive function than previously appreciated.
What This Study Doesn't Tell Us
Mouse model — may not directly translate to humans. Busulfan-induced azoospermia is one specific cause of infertility. Long-term effects and offspring health not assessed. Small study implied by model system.
Questions This Raises
- ?Could substance P or NK-1R agonists help cancer survivors with chemotherapy-induced infertility?
- ?Is substance P involved in other types of male infertility?
- ?Would there be pain-related side effects from substance P therapy at these doses?
Trust & Context
- Key Stat:
- Spermatogenesis restored SP at 5 nmol/kg markedly restored sperm production in busulfan-induced azoospermic mice
- Evidence Grade:
- Well-designed preclinical study with both in vivo and in vitro validation and receptor antagonist confirmation. Pre-clinical evidence.
- Study Age:
- Published in 2021, revealing a novel reproductive function of substance P.
- Original Title:
- Substance P restores spermatogenesis in busulfan-treated mice: A new strategy for male infertility therapy.
- Published In:
- Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 133, 110868 (2021)
- Authors:
- Chen, Zhihong, Liu, Minjie, Hu, Jin-Hua, Gao, Yong, Deng, Chunhua, Jiang, Mei Hua
- Database ID:
- RPEP-05318
Evidence Hierarchy
Frequently Asked Questions
Can a pain-related peptide really help with infertility?
Surprisingly, yes. Substance P, best known for transmitting pain signals, was found to stimulate the proliferation of sperm precursor cells. In mice made infertile by chemotherapy, substance P treatment restored sperm production and improved sperm quality.
Could this help cancer survivors who became infertile from treatment?
It's a promising possibility. This study shows that substance P can restart sperm production in mice after chemotherapy-induced sterility. If similar results are found in humans, it could offer a new treatment for one of the most distressing side effects of cancer therapy.
Read More on RethinkPeptides
Cite This Study
https://rethinkpeptides.com/research/RPEP-05318APA
Chen, Zhihong; Liu, Minjie; Hu, Jin-Hua; Gao, Yong; Deng, Chunhua; Jiang, Mei Hua. (2021). Substance P restores spermatogenesis in busulfan-treated mice: A new strategy for male infertility therapy.. Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 133, 110868. https://doi.org/10.1016/j.biopha.2020.110868
MLA
Chen, Zhihong, et al. "Substance P restores spermatogenesis in busulfan-treated mice: A new strategy for male infertility therapy.." Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 2021. https://doi.org/10.1016/j.biopha.2020.110868
RethinkPeptides
RethinkPeptides Research Database. "Substance P restores spermatogenesis in busulfan-treated mic..." RPEP-05318. Retrieved from https://rethinkpeptides.com/research/chen-2021-substance-p-restores-spermatogenesis
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.