Survivin: A key apoptosis inhibitor in COVID-19 infection and its implication for treatment protocol

  • 0Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia.

|

|

Summary

This summary is machine-generated.

COVID-19 patients show increased white blood cell apoptosis and proliferation. Strategies to prevent this apoptosis may help mitigate severe COVID-19 outcomes and lymphopenia.

Area Of Science

  • Immunology
  • Virology
  • Cell Biology

Background

  • The impact of Coronavirus disease (COVID-19) on cellular apoptosis and proliferation is not well understood.
  • Viruses can manipulate host cell processes like apoptosis and proliferation to influence infection outcomes.
  • Understanding these cellular changes is crucial for comprehending COVID-19 pathogenesis.

Purpose Of The Study

  • To evaluate apoptosis and proliferation rates in peripheral blood cells of COVID-19 patients.
  • To compare these rates in patients before and after vaccination against healthy controls.
  • To explore the role of specific immune markers in COVID-19-associated cellular changes.

Main Methods

  • Analysis of peripheral blood cells (lymphocytes and granulocytes) from newly diagnosed COVID-19 patients and healthy controls.
  • Assessment of apoptosis and proliferation levels.
  • Measurement of soluble Fas ligand (FaSL) and Interleukin-38 (IL-38) levels.

Main Results

  • Significant increases in proliferation and apoptosis were observed in lymphocytes and granulocytes of COVID-19 patients compared to controls.
  • Elevated levels of soluble Fas ligand (FaSL) and IL-38 were detected in COVID-19 patients.
  • Individuals vaccinated or recovered from COVID-19 showed higher survivin rates, indicating potential lung damage mitigation.

Conclusions

  • White blood cell (WBC) apoptosis plays a critical role in COVID-19 pathogenesis and pathogenicity.
  • Immune dysregulation, indicated by elevated FaSL and IL-38, is associated with COVID-19.
  • Targeting WBC apoptosis presents a potential therapeutic strategy to prevent lymphopenia and severe COVID-19 outcomes.

Related Concept Videos

The Extrinsic Apoptotic Pathway 01:17

6.3K

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...

The Intrinsic Apoptotic Pathway 01:31

6.5K

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...

Inhibition of Cdk Activity 02:34

4.7K

The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...

Cancer Therapies 02:49

7.6K

Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...

Phagocytosis of Apoptotic Cells 01:17

3.8K

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...