Roles of phosphatidyl inositol 3 kinase gamma (PI3Kγ) in respiratory diseases

Authors:

Valentina Sala1, Angela Della Sala1, Alessandra Ghigo1,2,# and Emilio Hirsch1,2,#

Affiliations:

1 Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126, Torino, Italy.

2 Kither Biotech S.r.l. Via Nizza 52, 10126, Torino, Italy.

# Equal contribution to senior authorship

Keywords: 

PI3K signaling, chronic respiratory disease, restrictive airway disease, obstructive airway disease, inflammation.

Abbreviatons:

AHR – airway hyperresponsiveness;

ASM – airway smooth muscle;

cAMP – cyclic adenosine monophosphate;

CF – cystic fibrosis;

CFTR – CF transmembrane conductance regulator;

GPCR – G-protein coupled receptor;

COPD – chronic obstructive pulmonary disease;

IAV – influenza A;

IFN – interferon;

IL – interleukin;

IPF – idiopathic pulmonary fibrosis;

KD – knockdown;

KO – knockout;

LPS – lipopolysaccharide;

MIF – migration inhibitory factor;

NK – natural killer;

PI3K – phosphatidyl inositol 3 kinase;

PLY – pneumolysin;

SNP - single-nucleotide polymorphisms;

TLR – Toll-like receptor;

VILI – ventilation-induced lung injury.

Corresponding Author(s):

Emilio Hirsch, via Nizza 52, 10126 Torino, Italy, Tel. +390116706225, Fax: +390116706432; emilio.hirsch@unito.it Valentina Sala, via Nizza 52, 10126 Torino, Italy, Tel. +390116706335, Fax: +390116706432; valentina.sala@unito.it

Conflict of interest statement:

Alessandra Ghigo and Emilio Hirsch are founders of Kither Biotech S.r.l. Valentina Sala received a contract fee from Kither Biotech S.r.l.

Please cite this article as:

Valentina Sala, Angela Della Sala, Alessandra Ghigo and Emilio Hirsch (2021). Roles of phosphatidyl inositol 3 kinase gamma (PI3Kγ) in respiratory diseases. Cell Stress 5(4): 40-51. doi: 10.15698/cst2021.04.246

© 2021 Sala et al. This is an open-access article released under the terms of the Creative Commons Attribution (CC BY) license, which allows the unrestricted use, distribution, and reproduction in any medium, provided the original author and source are acknowledged.

Abstract:

Phosphatidyl inositol 3 kinase gamma (PI3Kγ) is expressed in all the cell types that are involved in airway inflammation and disease, including not only leukocytes, but also structural cells, where it is expressed at very low levels under physiological conditions, while is significantly upregulated after stress. In the airways, PI3Kγ behaves as a trigger or a controller, depending on the pathological context. In this review, the contribution of PI3Kγ in a plethora of respiratory diseases, spanning from acute lung injury, pulmonary fibrosis, asthma, cystic fibrosis and response to both bacterial and viral pathogens, will be commented.