Related Experiment Video

Updated: Apr 30, 2026

A Microphysiological System to Study Leukocyte-Endothelial Cell Interaction during Inflammation
12:55

A Microphysiological System to Study Leukocyte-Endothelial Cell Interaction during Inflammation

Published on: December 9, 2021

3.0K

P21-activated kinase in inflammatory and cardiovascular disease

Domenico M Taglieri1, Masuko Ushio-Fukai2, Michelle M Monasky3

  • 1Department of Anesthesia and General Intensive Care Unit, Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 (Milano), Italy.

Cellular Signalling
|May 6, 2014
PubMed

Insights

P-21 activated kinases (PAKs) are crucial in inflammation and disease. PAK1 shows promise as a pharmacological target for treating inflammatory conditions, particularly cardiovascular disease.

Area of Science:

  • Molecular Biology
  • Immunology
  • Pharmacology

Background:

  • P-21 activated kinases (PAKs) are serine-threonine kinases involved in various biological processes.
  • While PAK signaling is studied, its role in inflammation remains incompletely understood.
  • PAKs regulate diverse cellular functions and are implicated in organ system diseases.

Purpose of the Study:

  • To review the role of PAK1 and PAK2 in inflammation, focusing on NADPH oxidase activation.
  • To explore PAK's physiological functions during inflammation and its involvement in organ diseases, especially cardiovascular disease.
  • To discuss PAK signaling pathways, activators, targets, and PAK1 as a potential anti-inflammatory drug target.

Main Methods:

  • Literature review consolidating existing research on PAKs in inflammation.
  • Analysis of PAK1 and PAK2 roles in relation to NADPH oxidase.
  • Examination of PAK signaling pathways, activators, and targets.

Main Results:

  • PAK1 and PAK2 play significant roles in inflammatory processes.
  • PAK signaling is implicated in the pathogenesis of various organ diseases, including cardiovascular disease.
  • PAK1 is identified as a central molecule in inflammatory signaling.

Conclusions:

  • Evidence strongly supports PAK as a key mediator of inflammatory signaling.
  • PAK1 presents a promising target for developing novel anti-inflammatory therapeutics.
  • Further research is needed to explore the potential and limitations of pharmacological modulation of PAK1 in inflammation.
Keywords:
CardiacCell migrationCytoskeletal dynamicsNADPH oxidasePAK1PAK2

More Related Videos

Screening Assays to Characterize Novel Endothelial Regulators Involved in the Inflammatory Response12:50

Screening Assays to Characterize Novel Endothelial Regulators Involved in the Inflammatory Response

Published on: September 15, 2017

6.0K
A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology05:51

A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology

Published on: May 6, 2014

13.0K

Related Concept Videos

MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
7.3K
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,...
7.3K
The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
10.2K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
4.7K
PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
5.1K
Inflammatory Response I: Vascular and Cellular01:30

Inflammatory Response I: Vascular and Cellular

The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
15.8K