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Cisplatin-induced germ cell apoptosis in mouse testes.
X Zhang1, N Yamamoto, S Soramoto
1Department of Urology, Kagawa Medical University, Japan. zhang@kms.ac.jp
Archives of Andrology
|February 24, 2001
Summary
Cisplatin exposure induces apoptosis in male germ cells, leading to testicular damage. This germ cell apoptosis in mouse testes is dose- and time-dependent, potentially reducing sperm production.
Area of Science:
- Reproductive toxicology
- Cell biology
- Histopathology
Background:
- Cisplatin is a widely used chemotherapeutic agent.
- Chemotherapy can cause significant side effects, including reproductive toxicity.
- The mechanisms underlying cisplatin-induced testicular damage require further investigation.
Purpose of the Study:
- To determine if cisplatin exposure induces apoptosis in male germ cells.
- To explore the role of germ cell apoptosis in cisplatin-induced testicular damage in mice.
Main Methods:
- Male BALB/c mice were administered varying doses of cisplatin (1, 5, or 10 mg/kg) or saline (control).
- Testes were collected on days 1, 3, and 7 post-injection.
- Apoptotic indices (AIs) in seminiferous tubules were quantified using the TUNL assay.
Main Results:
- Cisplatin significantly increased apoptotic indices in spermatogonia, spermatocytes, and spermatids compared to controls.
- A dose- and time-dependent increase in germ cell apoptosis was observed.
- Higher cisplatin doses correlated with a delayed onset of apoptosis.
Conclusions:
- Cisplatin induces germ cell apoptosis in mouse testes, contributing to testicular damage.
- Cisplatin-induced germ cell apoptosis is linked to dose and time of exposure.
- This apoptosis may lead to reduced spermatogenesis, with higher doses potentially delaying its occurrence.