A Determination of p97/VCP (Valosin Containing Protein) and SVIP (Small VCP Interacting Protein) Expression Patterns...

Area of Science:

• Cell Biology
• Molecular Biology
• Reproductive Biology

Background:

• The ubiquitin proteasome system (UPS) degrades proteins via proteasomes, utilizing the p97/Valosin-containing protein (VCP) chaperone.
• p97/VCP facilitates the transport of ubiquitinated proteins to proteasomes for degradation.
• Deficiency in p97/VCP leads to protein accumulation and pathological conditions.

Purpose of the Study:

• To investigate the expression patterns of SVIP and p97/VCP in human testicular tissues across different postnatal developmental stages.
• To explore the potential of SVIP and p97/VCP as testicular cell biomarkers for unexplained male infertility.

Main Methods:

• Immunohistochemical analysis was employed to determine the expression of p97/VCP and SVIP proteins.
• Human testicular tissues from neonatal, prepubertal, pubertal, adult, and geriatric groups were analyzed.

Main Results:

• p97/VCP and SVIP expression was lowest in neonatal testicular tissues.
• Expression levels gradually increased from the prepubertal to adult stages, peaking in adulthood.
• A significant decrease in p97/VCP and SVIP expression was observed in the geriatric group.

Conclusions:

• The expression of p97/VCP and SVIP in human testes shows a positive correlation with age.
• Expression levels significantly decline in older age groups.
• These findings support the investigation of SVIP and p97/VCP as potential biomarkers in male reproductive health and infertility.