Thymosin β₄ and β₁₀ Expression in Human Organs during Development: A Review.

Area of Science:

• Biochemistry
• Molecular Biology
• Human Physiology

Background:

• Thymosin beta-4 (Tβ4) and thymosin beta-10 (Tβ10) are acidic peptides with known multiple functions.
• Their precise roles and distribution during human development and in various tissues remain incompletely understood, referred to as the "β-thymosin enigma".

Purpose of the Study:

• To define the expression levels and tissue distribution of Tβ4 and Tβ10 throughout human development.
• To investigate the potential functions of β-thymosins in both health and disease, including carcinogenesis.

Main Methods:

• Proteomics investigations on human saliva and gingival crevicular fluid.
• Immunochemistry-based studies on fetal and adult human organs and tissues obtained post-autopsy.

Main Results:

• Proteomics revealed the importance and multiple functions of Tβ4 and Tβ10 in early life.
• Immunochemistry established the distribution patterns of Tβ4 and Tβ10 across various human organs and developmental stages.

Conclusions:

• The expression and distribution of Tβ4 and Tβ10 suggest significant roles in human development.
• These findings contribute to understanding the molecular functions of β-thymosins, potentially resolving the "β-thymosin enigma".