[Outer dense fiber 2 and sperm function: Progress in studies]

Area of Science:

• Reproductive Biology
• Molecular Cell Biology
• Sperm Biology

Background:

• Male infertility is often caused by oligoasthenozoospermia or teratozoospermia, characterized by low sperm count, motility, or abnormal morphology.
• Abnormalities in sperm tail structure and function are primary causes of reduced sperm motility.
• Outer dense fiber protein 2 (ODF2) is crucial for maintaining sperm tail cytoskeleton and centrosome integrity, and its dysfunction is associated with asthenospermia.

Purpose of the Study:

• To review the known functions of Outer dense fiber protein 2 (ODF2).
• To explore the multifaceted nature of ODF2, recognizing it as more than a single structural protein.
• To establish a foundation for future research into the role of ODF2 in fertilization.

Main Methods:

• Literature review of existing studies on ODF2.
• Analysis of ODF2's structural components and functional roles.
• Synthesis of information regarding ODF2's involvement in sperm and embryonic development.

Main Results:

• ODF2 is implicated in maintaining sperm tail structure and centrosome function.
• ODF2 comprises multiple related proteins and splice variants.
• ODF2 plays a role in ciliogenesis and sperm capacitation.

Conclusions:

• ODF2's complex nature and diverse functions highlight its significance in male reproductive health.
• Further investigation into ODF2 is warranted to fully understand its impact on fertilization.
• ODF2 represents a potential target for addressing male infertility associated with sperm motility defects.