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Serial Enrichment of Spermatogonial Stem and Progenitor Cells (SSCs) in Culture for Derivation of Long-term Adult Mouse SSC Lines
Published on: February 25, 2013
Does prepubertal testicular tissue vitrification influence spermatogonial stem cells (SSCs) viability?
Mohammadreza Gholami1, Masoud Hemadi, Ghasem Saki
1Department of Anatomy, Lorestan University of Medical Sciences, Khorramabad, Iran.
Journal of Assisted Reproduction and Genetics
|July 24, 2013
Summary
Vitrification of prepubertal testicular tissue for fertility preservation shows promising results. This method reduces damage to spermatogonial stem cells (SSCs) and does not increase apoptosis-related gene expression.
Area of Science:
- Reproductive biology
- Cellular biology
- Oncology
Background:
- Fertility preservation is crucial for pediatric cancer patients undergoing gonadotoxic therapies.
- Testicular cryopreservation offers a method for preserving fertility.
- Cryopreservation techniques may induce damage to testicular cells, including spermatogonial stem cells (SSCs).
Purpose of the Study:
- To evaluate the effects of testicular tissue vitrification on SSCs.
- To assess intracellular LDH leakage, cell cycle, apoptotic responses, and apoptosis-related gene expression in vitrified SSCs.
Main Methods:
- Prepubertal mouse testes (6-day-old BALB/c) were vitrified or kept fresh.
- SSCs were isolated using enzymatic digestion and MACS.
- Cell damage was assessed via cytotoxicity assays, flow cytometry, and real-time PCR.
Main Results:
- Vitrified SSCs exhibited less intracellular LDH leakage compared to fresh SSCs.
- The percentage of apoptotic and necrotic SSCs was lower in the vitrified group.
- Apoptosis-related gene expression showed increased P53 and BCL-2, and decreased Bax and Fas levels in vitrified SSCs.
Conclusions:
- Vitrification of prepubertal testicular tissue is a safe method for preserving SSCs.
- Vitrification does not elevate apoptosis-related gene expression (Bax, Fas) in SSCs.
- The technique is associated with reduced cell damage and apoptosis/necrosis.
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