Regulation and function of connective tissue growth factor/CCN2 in tissue repair, scarring and fibrosis

Area of Science:

• Biochemistry
• Cell Biology
• Molecular Biology

Background:

• Connective tissue growth factor (CTGF, also known as CCN2) is a secreted protein involved in numerous biological processes.
• CTGF belongs to the CCN family and possesses distinct protein modules for binding growth factors, integrins, and proteoglycans.
• It plays a key role in modulating cell signaling pathways involving extracellular matrix components and growth factors.

Purpose of the Study:

• To elucidate the multifaceted roles of CTGF in biological processes.
• To understand how CTGF integrates extracellular cues to regulate cell behavior.
• To investigate the implications of aberrant CTGF signaling in disease pathogenesis.

Main Methods:

• Analysis of CTGF protein structure and its functional domains.
• Investigation of CTGF interactions with cell surface proteoglycans and growth factors.
• Examination of CTGF's role in mesenchymal cell activation and differentiation.
• Study of CTGF signaling pathways in tissue repair, fibrosis, and cancer models.

Main Results:

• CTGF coordinates signaling by interacting with proteoglycans and growth factors.
• It regulates cell motility, differentiation, and tissue remodeling processes.
• Abnormal CTGF signaling prevents the termination of tissue repair, contributing to fibrosis and cancer.

Conclusions:

• CTGF is a critical regulator of tissue repair and homeostasis.
• Its function is tightly linked to the extracellular matrix and growth factor signaling.
• Dysregulation of CTGF signaling is implicated in the development of fibrotic diseases and cancer.