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Small Non-Coding RNAs in Male Reproduction
Opeyemi Olotu1, Ammar Ahmedani1, Noora Kotaja1
1Integrative Physiology and Pharmacology Unit, Institute of Biomedicine, University of Turku, Turku, Finland.
Seminars in Reproductive Medicine
|February 12, 2024
Summary
Small non-coding RNAs (sncRNAs), including microRNAs and piRNAs, regulate male fertility. Sperm sncRNAs may transmit epigenetic information and serve as infertility biomarkers.
Area of Science:
- Reproductive Biology
- Molecular Genetics
- Epigenetics
Background:
- Male reproductive functions rely on precise gene expression regulation for sperm production and fertility.
- Small non-coding RNAs (sncRNAs) are key regulators, targeting messenger RNAs (mRNAs) for gene expression control.
- Germline-expressed sncRNAs, particularly microRNAs (miRNAs) and PIWI-interacting RNAs (piRNAs), are crucial for male germ cell differentiation.
Approach:
- This review synthesizes current research on sncRNA functions in male germ cell development.
- It focuses on the roles of miRNAs and piRNAs within the male germline.
- The review also examines sncRNAs in mature spermatozoa and their potential role in epigenetic inheritance.
Key Points:
- Germline sncRNAs orchestrate gene expression programs essential for male reproductive system development and function.
- Mature spermatozoa contain diverse sncRNAs that may mediate intergenerational epigenetic transmission of parental exposures.
- Sperm sncRNAs are being investigated as potential biomarkers for male infertility and assisted reproduction outcomes.
Conclusions:
- SncRNAs are critical regulators of male fertility, influencing germ cell differentiation and potentially offspring health.
- Further research into sperm sncRNAs could unlock new diagnostic tools and therapeutic strategies for male reproductive disorders.
- Understanding sncRNA roles provides insights into epigenetic inheritance and environmental impacts on fertility.
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