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PI3K Isoforms in Cell Signalling and Innate Immune Cell Responses
Izabela Galvão1,2, Lirlândia P Sousa3, Mauro M Teixeira1
1Immunopharmacology Laboratory, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Current Topics in Microbiology and Immunology
|October 15, 2022
Summary
Phosphoinositide-3-kinases (PI3Ks) are crucial enzymes regulating mammalian cell functions. This chapter details PI3K isoform roles in innate immunity, impacting host defense mechanisms.
Area of Science:
- Biochemistry
- Cell Biology
- Immunology
Background:
- Phosphoinositide-3-kinases (PI3Ks) are enzymes that phosphorylate phosphatidylinositol, generating lipid second messengers.
- These lipid products coordinate essential cellular functions like proliferation, survival, and chemotaxis.
- Understanding specific PI3K isoform functions in different cellular and inflammatory contexts is complex.
Purpose of the Study:
- To elucidate the role of PI3K isoforms in innate immunity.
- To detail the mechanisms of PI3K signaling in regulating key immune processes.
- To highlight the central role of PI3K signaling in host defense against pathogens and tissue damage.
Main Methods:
- Focus on PI3K isoform involvement in innate immune responses.
- Analysis of PI3K signaling pathways regulating phagocytosis.
- Examination of PI3K regulation of receptor activation (immunoglobulin, chemokine, cytokine).
Main Results:
- PI3K signaling regulates phagocytosis and reactive oxygen species (ROS) production.
- PI3K pathways are critical for activating immunoglobulin, chemokine, and cytokine receptors.
- PI3K signaling controls cell migration and is vital for host defense.
Conclusions:
- PI3K isoforms play a significant role in innate immunity.
- PI3K signaling pathways are essential for coordinating immune cell functions and host defense.
- Further research into PI3K isoforms can reveal new therapeutic targets for infectious diseases and inflammatory conditions.
Keywords:
InflammationInnate immune responseNeutrophil activationNeutrophil migrationNeutrophil survivalPI3K isoformsMore Related Videos
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