Collagens and collagen-related diseases

Area of Science:

• Biochemistry
• Genetics
• Molecular Biology

Background:

• The collagen superfamily comprises over 20 types and 38 polypeptide chains, forming crucial structural assemblies like fibrils and networks.
• Collagen proteins possess non-collagenous domains with distinct functions, and specific post-translational enzymes are essential for their synthesis.
• Mutations in collagen genes lead to over 1,000 identified diseases, underscoring the superfamily's critical roles in human health.

Purpose of the Study:

• To review the diverse functions and structural organization of the collagen superfamily.
• To highlight the significant impact of collagen mutations on human health and disease.
• To discuss potential therapeutic targets related to collagen synthesis and its role in fibrotic diseases.

Main Methods:

• Literature review of collagen structure, function, and associated diseases.
• Analysis of known collagen types, mutations, and their clinical manifestations.
• Exploration of the role of collagen in angiogenesis and fibrotic conditions.

Main Results:

• The collagen superfamily is extensive, with diverse assemblies and functional domains.
• Over 1,000 mutations in 22 collagen genes are linked to a wide spectrum of genetic disorders.
• Endostatin, a fragment of type XVIII collagen, inhibits angiogenesis and tumor growth, presenting a therapeutic avenue.

Conclusions:

• Collagen's fundamental role in tissue integrity and diverse functions is well-established.
• Genetic defects in collagen are responsible for a broad range of debilitating diseases.
• Targeting collagen synthesis pathways offers potential therapeutic strategies for fibrotic diseases and cancer.