Apoptosis: Mediator Molecules, Interplay with Other Cell Death Processes and Therapeutic Potentials

Jiban Barman1, Ritesh Kumar2, Gundappa Saha1

  • 1Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.

Insights

Apoptosis, programmed cell death, is vital for cell homeostasis. Dysregulation can lead to cancer, highlighting the importance of understanding apoptotic pathways and their therapeutic potential.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Apoptosis, or programmed cell death, is essential for maintaining cellular homeostasis.
  • Key features include membrane blebbing, nuclear condensation, DNA fragmentation, and cell shrinkage.
  • Defects in apoptosis can cause uncontrolled cell survival, leading to neoplastic expansion and genetic instability.

Purpose of the Study:

  • To review recent advancements in understanding apoptosis.
  • To explore the interactions between apoptosis and other cell death pathways.
  • To discuss the therapeutic applications of targeting apoptosis.

Main Methods:

  • Literature review of recent studies on apoptosis.
  • Analysis of molecular mechanisms regulating apoptosis.
  • Examination of cross-talk between different cell death processes.

Main Results:

  • Detailed overview of the molecular machinery of apoptosis, focusing on caspases.
  • Exploration of the complex interplay between apoptosis and other cell death modalities.
  • Identification of emerging therapeutic strategies targeting apoptotic pathways.

Conclusions:

  • Understanding apoptosis is crucial for addressing diseases associated with its dysregulation.
  • Targeting apoptotic pathways offers promising therapeutic avenues for various conditions.
  • Further research into apoptosis cross-talk may reveal novel treatment strategies.

Related Concept Videos

Autophagic Cell Death01:18

Autophagic Cell Death

Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
4.6K
Overview of Cell Death01:30

Overview of Cell Death

Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
10.2K
Apoptosis01:30

Apoptosis

Apoptosis is a combination of two Greek words, 'apo' and 'ptosis,' meaning separation and falling off, respectively. Hippocrates used this word to describe gangrene, which was caused due to bandaging of fractured bones. Apoptosis was distinguished from necrosis in 1970 when John Kerr reported observations of morphological changes occurring during apoptosis. During one experiment, he observed that the disruption of blood supply to the liver tissue resulted in a size...
15.2K
Cell Potential and Free Energy02:58

Cell Potential and Free Energy

Thermodynamics of a Redox Reaction
Thermodynamics is the branch of physics dealing with the relationship between heat and other forms of energy. In an electrochemical cell, chemical energy is converted into electrical energy.
Thus, a link can be predicted between cell potential, free energy change, and the equilibrium constant for the reaction. Cell potential can also be measured as the oxidant or the reducing strength, and similar acid-base strength measures are reflected in equilibrium...
46.6K
Negative Regulator Molecules01:23

Negative Regulator Molecules

Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
38.5K
Receptor-mediated Endocytosis01:39

Receptor-mediated Endocytosis

Overview
111.0K