Cellular and developmental basis of orofacial clefts

Area of Science:

• Developmental Biology
• Craniofacial Development
• Birth Defects

Background:

• Orofacial clefts (OFCs) are common structural birth defects resulting from impaired upper lip and palate development.
• OFCs involve complex morphogenesis of orofacial structures derived from ectoderm, mesoderm, and endoderm.
• Cranial neural crest cells and orofacial epithelial cells are critical players in normal orofacial development.

Purpose of the Study:

• To elucidate the cellular and developmental basis of orofacial clefts.
• To identify key cellular processes and cell types involved in OFC etiology.
• To explore recent findings for a comprehensive understanding of OFC mechanisms.

Main Methods:

• Review of cellular and developmental processes in craniofacial development.
• Analysis of cell behaviors including migration, proliferation, differentiation, and apoptosis.
• Examination of signaling pathways and cell-cell interactions.

Main Results:

• Defective execution of numerous cellular processes underlies OFCs.
• Key processes include neural crest induction, epithelial-mesenchymal transition, cell adhesion, and extracellular matrix function.
• Disruptions in primary cilia signaling and epithelial seam dynamics are implicated.

Conclusions:

• Understanding the intricate cellular basis of OFCs is crucial for advancing research.
• Latest findings offer insights into the genetic, epigenetic, environmental, and molecular underpinnings of OFCs.
• This knowledge can inform future diagnostic and therapeutic strategies for orofacial clefts.