Novel Functions of Death-Associated Protein Kinases through Mitogen-Activated Protein Kinase-Related Signals

Mohamed Elbadawy1,2, Tatsuya Usui3, Hideyuki Yamawaki4

  • 1Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan. mohamed.elbadawy@fvtm.bu.edu.eg.

Insights

Death associated protein kinases (DAPK) regulate cell death and are implicated in diseases. This review explores DAPK family roles, regulation, cross-talk with MAPKs, and therapeutic potential of DAPK inhibitors.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biochemistry

Background:

  • Death associated protein kinase (DAPK) is a calcium/calmodulin-regulated serine/threonine kinase.
  • The DAPK family includes DAPK1, DAPK2, DAPK3, and DRAK-1/DRAK-2.
  • DAPK family members play crucial roles in regulating programmed cell death.

Purpose of the Study:

  • To review the diverse roles and regulatory mechanisms of DAPK family members.
  • To highlight the involvement of DAPKs in various human diseases.
  • To examine the interplay between DAPKs and mitogen-activated protein kinases (MAPKs) in disease pathologies.

Main Methods:

  • Literature review of studies on DAPK family proteins.
  • Analysis of regulatory mechanisms and disease relevance.
  • Investigation of cross-talk between DAPKs and MAPKs.

Main Results:

  • DAPKs are key regulators of cell death pathways.
  • Dysregulation of DAPKs is linked to several human diseases.
  • Cross-talk between DAPKs and MAPKs influences disease progression.

Conclusions:

  • DAPK family members are critical regulators of cell death with significant implications in disease.
  • Understanding DAPK regulation and interactions, particularly with MAPKs, is vital.
  • Small molecule inhibitors targeting DAPKs show promise for therapeutic interventions in human diseases.

Related Concept Videos

Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
15.1K
Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

4.5K
cAMP-dependent Protein Kinase Pathways01:25

cAMP-dependent Protein Kinase Pathways

Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
8.5K
Receptor Tyrosine Kinases01:26

Receptor Tyrosine Kinases

Receptor tyrosine kinases or RTKs are membrane-bound receptors that phosphorylate specific tyrosine on protein substrates. RTKs regulate cellular growth, differentiation, survival, and migration. They contain an extracellular ligand binding domain, a transmembrane domain, and a cytosolic tail with intrinsic kinase activity. Several extracellular signaling molecules activate RTKs in one or more ways and relay the signal downstream. Ligands such as platelet-derived growth factor (PDGF) or...
18.7K
Protein-protein Interfaces02:04

Protein-protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.7K
Regulated Protein Degradation02:58

Regulated Protein Degradation

It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
8.9K