Mechanisms of Regulated Cell Death: Current Perspectives

Area of Science:

• Cellular biology
• Molecular mechanisms of cell death
• Pathology

Background:

• Cell survival and death balance is essential for organism development and homeostasis.
• Regulated cell death (RCD) plays key roles in organogenesis, tissue remodeling, and cell number regulation.
• Novel non-apoptotic RCD forms have been identified, advancing understanding of human and veterinary diseases.

Purpose of the Study:

• To review the molecular machinery of non-apoptotic RCD mechanisms.
• To discuss the limitations of current terminology (apoptosis, necrosis) in pathology.
• To emphasize the need for standardized biomarkers for RCD characterization.

Main Methods:

• Literature review of RCD mechanisms.
• Analysis of molecular pathways involved in non-apoptotic cell death.
• Evaluation of current pathological diagnostic terms.

Main Results:

• Multiple interconnected signaling pathways regulate cell death.
• Novel non-apoptotic RCD mechanisms have been elucidated.
• Existing terms like apoptosis and necrosis are inadequate for describing microscopic findings.

Conclusions:

• Characterizing RCD requires understanding its molecular basis, not just morphology.
• A standardized panel of biomarkers and functional tests is needed for accurate RCD diagnosis.
• Improved RCD characterization will enhance understanding of disease mechanisms.