A crosstalk between autophagy and apoptosis in intracerebral hemorrhage

Moyan Wang1, Xin Chen1, Shuangyang Li1

  • 1Department of Neurology, National Traditional Chinese Medicine Clinical Research Base, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China.

PubMed

Insights

Intracerebral hemorrhage (ICH) involves complex interactions between autophagy and apoptosis markers, specifically Beclin 1, Bcl-2, and Bax. Understanding this crosstalk offers new therapeutic avenues for ICH treatment.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Pathology

Background:

  • Intracerebral hemorrhage (ICH) is a critical neurological condition with severe health and economic impacts.
  • Bcl-2 Associated X-protein (Bax) and B-cell lymphoma 2 (Bcl-2) are key apoptosis regulators in ICH.
  • Beclin 1 is crucial for autophagy and has a competitive relationship with Bax.

Purpose of the Study:

  • To review the interplay between autophagy and apoptosis in ICH.
  • To analyze the combined interactions of Beclin 1, Bax, and Bcl-2 in ICH.
  • To explore therapeutic strategies targeting this crosstalk in ICH.

Main Methods:

  • Literature review focusing on autophagy and apoptosis pathways in ICH.
  • Analysis of the molecular interactions between Beclin 1, Bax, and Bcl-2.
  • Examination of therapeutic interventions for ICH.

Main Results:

  • The interaction and balance between Beclin 1, Bax, and Bcl-2 are critical in ICH pathogenesis.
  • Autophagy and apoptosis crosstalk significantly influences ICH outcomes.
  • Both Western and Traditional Chinese Medicine (TCM) show potential in modulating these pathways.

Conclusions:

  • Targeting the crosstalk between autophagy and apoptosis, particularly involving Beclin 1, Bax, and Bcl-2, is a promising therapeutic strategy for ICH.
  • Further research into the combined effects of Beclin 1, Bax, and Bcl-2 could reveal novel treatment approaches.
  • Integrating TCM with conventional medicine may offer comprehensive management for ICH.

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...
3.4K
Phagocytosis of Apoptotic Cells01:17

Phagocytosis of Apoptotic Cells

Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or  immature dendritic cells. Non-professional phagocytes such as  epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes. 
Normal cells contain receptors that prevent them from being recognized...
3.7K
Autophagy01:27

Autophagy

Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
4.2K
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...
11.2K
The Intrinsic Apoptotic Pathway01:31

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.4K
The Extrinsic Apoptotic Pathway01:17

The Extrinsic Apoptotic Pathway

The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
6.3K