The morphogenetic changes that lead to cell extrusion in development and cell competition

Area of Science:

• Developmental Biology
• Cell Biology
• Tissue Homeostasis

Background:

• Cell extrusion is a key morphogenetic process for removing unfit or dying cells.
• This process is crucial for tissue homeostasis and normal development.
• Cell competition acts as a broader quality control mechanism in proliferating tissues.

Purpose of the Study:

• To review variations of cell extrusion.
• To discuss the role of cell extrusion in development and cell competition.
• To explore how tissue geometry and topology influence cell extrusion.

Main Methods:

• Literature review of cell extrusion mechanisms.
• Analysis of cell extrusion in developmental contexts.
• Examination of cell extrusion in cell competition models.

Main Results:

• Cell extrusion is linked to cell fate specification and differentiation.
• Inhibition of cell extrusion can lead to abnormal development.
• Somatic mutations can trigger morphogenetic events via cell extrusion.

Conclusions:

• Cell extrusion is a fundamental process in multicellular organisms.
• It plays a vital role in maintaining tissue health and proper development.
• Understanding cell extrusion variations provides insights into tissue dynamics and disease.