Involvement of regulated necrosis in blinding diseases: Focus on necroptosis and ferroptosis

Jing-Jie Peng1, Wei-Tao Song2, Fei Yao2

  • 1Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, 410008, China; Department of Laboratory Medicine, The Third Xiangya Hospital of Central South University, Changsha, 410013, China.

Experimental Eye Research
|January 11, 2020
PubMed

Insights

Regulated necrosis, a programmed cell death, contributes to blinding diseases like glaucoma. This review examines necroptosis and ferroptosis roles in retinal cell degeneration.

Area of Science:

  • Cellular Biology
  • Pathology
  • Ophthalmology

Background:

  • Regulated necrosis is a genetically controlled cell death pathway distinct from apoptosis, involving membrane integrity loss.
  • Classifications include necroptosis, ferroptosis, pyroptosis, and parthanatos, implicated in various organ diseases.
  • Emerging evidence links regulated necrosis to retinal cell degeneration in blinding conditions.

Purpose of the Study:

  • To review the involvement of necroptosis and ferroptosis in blinding diseases.
  • To highlight their contribution to retinal cell degeneration.

Main Methods:

  • Literature review focusing on necroptosis and ferroptosis.
  • Analysis of studies on glaucoma, age-related macular degeneration, and retinitis pigmentosa.

Main Results:

  • Necroptosis and ferroptosis are key contributors to retinal ganglion cell, retinal pigment epithelial, and photoreceptor cell loss.
  • These regulated necrosis pathways are central to the pathology of major blinding diseases.

Conclusions:

  • Necroptosis and ferroptosis are critical therapeutic targets for blinding diseases.
  • Understanding these pathways is crucial for developing novel treatments for vision loss.

Related Concept Videos

Necrosis01:16

Necrosis

Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
6.1K
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...
9.1K
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...
4.2K
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...
8.1K
Neural Regulation01:37

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
43.0K
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...
7.9K