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Updated: Aug 2, 2025
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Ex vivo Culture of Drosophila Pupal Testis and Single Male Germ-line Cysts: Dissection, Imaging, and Pharmacological Treatment
Published on: September 11, 2014
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ARRDC5 expression is conserved in mammalian testes and required for normal sperm morphogenesis
Mariana I Giassetti1,2, Deqiang Miao1,2, Nathan C Law1,3
1Center for Reproductive Biology, Washington State University, Pullman, WA, USA.
Nature Communications
|April 17, 2023
Summary
Arrestin-domain containing 5 (ARRDC5) is crucial for sperm development and male fertility. Its absence causes male sterility by impairing sperm formation, motility, and fertilization capabilities.
Area of Science:
- Reproductive Biology
- Molecular Biology
- Genetics
Background:
- Sperm formation (spermatogenesis) is vital for sexual reproduction.
- Key molecular regulators of mammalian spermatogenesis remain largely unknown.
- α-arrestin proteins modulate cellular signaling and protein ubiquitination.
Purpose of the Study:
- To identify novel molecular regulators of mammalian spermatogenesis.
- To investigate the role of arrestin-domain containing 5 (ARRDC5) in sperm formation and function.
Main Methods:
- Multispecies testicular tissue transcriptome profiling.
- Generation and analysis of Arrdc5 knockout mice.
- Assessment of sperm production, morphology, motility, and fertilization capacity.
Main Results:
- ARRDC5 expression is highly enriched in testes across multiple mammalian species.
- Arrdc5 knockout mice exhibit male-specific sterility.
- Defects observed include low sperm count, immotility, malformation, and impaired capacitation and fertilization.
Conclusions:
- ARRDC5 is an essential regulator of mammalian spermatogenesis and sperm function.
- ARRDC5 plays a critical role in spermiogenesis and sperm maturation.
- ARRDC5 represents a potential target for male contraceptive development.
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