» Articles » PMID: 8257441

Activation of Phosphatidylinositol 4,5-bisphosphate Supply by Agonists and Non-hydrolysable GTP Analogues

Overview
Journal Biochem J
Specialty Biochemistry
Date 1993 Dec 1
PMID 8257441
Citations 15
Authors
Affiliations
Soon will be listed here.
Abstract

PtdIns(4,5)P2 serves as a precursor of a diverse family of signalling molecules, including diacylglycerol (and hence phosphatidic acid), Ins(1,4,5)P3 [and hence Ins(1,3,4,5)P4] and PtdIns(3,4,5)P3. The production of these messengers can be activated by agonists, and therefore the rate of utilization of PtdIns(4,5)P2 can vary dramatically. Although cells can only meet these large changes in demand for PtdIns(4,5)P2 by increasing its synthesis and/or by continuously cycling it at a rate that exceeds its potential consumption (avoiding the need for a co-ordinated activation mechanism), no satisfactory explanation for how this is achieved in agonist-stimulated cells has yet been provided. We show here that, in streptolysin-O-permeabilized neutrophils, N-formylmethionyl-leucyl-phenylalanine (FMLP), platelet-activating factor (PAF) and non-hydrolysable GTP analogues can cause large activations of PtdIns4P 5-kinase, suggesting that cells can accommodate agonist-activated rates of consumption of PtdIns(4,5)P2 without having to sustain continuous, comparably rapid and energetically expensive 'futile cycling' reactions.

Citing Articles

CDS2 expression regulates de novo phosphatidic acid synthesis.

Collins D, Janardan V, Barneda D, Anderson K, Niewczas I, Taylor D Biochem J. 2024; 481(20):1449-1473.

PMID: 39312194 PMC: 11555650. DOI: 10.1042/BCJ20240456.


Signal Transduction of Transient Receptor Potential TRPM8 Channels: Role of PIP5K, Gq-Proteins, and c-Jun.

Thiel G, Rossler O Molecules. 2024; 29(11).

PMID: 38893478 PMC: 11174004. DOI: 10.3390/molecules29112602.


Acyl chain selection couples the consumption and synthesis of phosphoinositides.

Barneda D, Janardan V, Niewczas I, Collins D, Cosulich S, Clark J EMBO J. 2022; 41(18):e110038.

PMID: 35771169 PMC: 9475507. DOI: 10.15252/embj.2021110038.


A PLCβ/PI3Kγ-GSK3 signaling pathway regulates cofilin phosphatase slingshot2 and neutrophil polarization and chemotaxis.

Tang W, Zhang Y, Xu W, Harden T, Sondek J, Sun L Dev Cell. 2011; 21(6):1038-50.

PMID: 22172670 PMC: 3241930. DOI: 10.1016/j.devcel.2011.10.023.


Towards a quantitative representation of the cell signaling mechanisms of hallucinogens: measurement and mathematical modeling of 5-HT1A and 5-HT2A receptor-mediated ERK1/2 activation.

Chang C, Poteet E, Schetz J, Gumus Z, Weinstein H Neuropharmacology. 2008; 56 Suppl 1:213-25.

PMID: 18762202 PMC: 2635340. DOI: 10.1016/j.neuropharm.2008.07.049.


References
1.
Cockcroft S, Lamb J, Zanders E . Inositol lipid metabolism in human T lymphocytes activated via the T3 complex. Immunology. 1987; 60(2):209-12. PMC: 1453213. View

2.
Brockerhoff H, Ballou C . On the metabolism of the brain phosphoinositide complex. J Biol Chem. 1962; 237:1764-6. View

3.
Renard D, POGGIOLI J, Berthon B, Claret M . How far does phospholipase C activity depend on the cell calcium concentration? A study in intact cells. Biochem J. 1987; 243(2):391-8. PMC: 1147867. DOI: 10.1042/bj2430391. View

4.
Pike M, Arndt C . Characterization of phosphatidylinositol and phosphatidylinositol-4-phosphate kinases in human neutrophils. J Immunol. 1988; 140(6):1967-73. View

5.
Fujita-Yamaguchi Y, Kathuria S . Characterization of receptor tyrosine-specific protein kinases by the use of inhibitors. Staurosporine is a 100-times more potent inhibitor of insulin receptor than IGF-I receptor. Biochem Biophys Res Commun. 1988; 157(3):955-62. DOI: 10.1016/s0006-291x(88)80967-7. View