Caspases in the Developing Central Nervous System: Apoptosis and Beyond

Area of Science:

• Neuroscience
• Cell Biology
• Developmental Biology

Background:

• Caspases are cysteine proteases executing programmed cell death (PCD) type I, also known as apoptosis.
• Historically recognized for their role in eliminating cells during embryonic development, including the central nervous system (CNS).
• Emerging evidence indicates caspases are involved in non-apoptotic neurodevelopmental processes.

Purpose of the Study:

• To review the current understanding of both apoptotic and non-apoptotic functions of caspases in the developing CNS.
• To explore the regulatory mechanisms governing caspase activity in neural development.
• To emphasize the involvement of the mitochondrial pathway in caspase-mediated processes.

Main Methods:

• Literature review synthesizing existing research on caspases in CNS development.
• Analysis of studies investigating molecular factors regulating caspase functions.
• Focus on the mitochondrial pathway as a key regulatory hub.

Main Results:

• Caspases are essential for programmed cell death in the CNS.
• Beyond cell death, caspases actively participate in axon guidance, synapse formation, and synaptic function.
• The mitochondrial pathway is a critical regulator of caspase-mediated apoptotic and non-apoptotic roles.

Conclusions:

• Caspases exhibit a dual role in the developing CNS, mediating both cell death and essential developmental processes.
• Understanding caspase regulation is key to deciphering neural cell fate decisions during development.
• The mitochondrial pathway is central to controlling these diverse caspase activities.