PMID- 35386975 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240512 IS - 2673-6101 (Electronic) IS - 2673-6101 (Print) IS - 2673-6101 (Linking) VI - 2 DP - 2021 TI - G Protein-Coupled Receptor Kinase 2 (GRK2) Regulates T Cell Response in a Murine Model of House Dust Mite-Induced Asthma. PG - 656886 LID - 10.3389/falgy.2021.656886 [doi] LID - 656886 AB - G protein-coupled receptor kinase 2 (GRK2) is an adapter protein that modulates G protein-coupled receptor (GPCR) signaling. It also regulates the functions and activity of other intracellular proteins in many cell types. Accordingly, GRK2 is thought to contribute to disease progression by a variety of mechanisms related to its multifunctional roles. Indeed, GRK2 levels are enhanced in patient samples as well as in preclinical models of several diseases. We have previously shown that GRK2 regulates mast cell functions, and thereby contributes to exacerbated inflammation during allergic reactions. In the current study, we observed that GRK2 levels are enhanced in the lungs of human asthma patients and in mice sensitized to house dust mite extract (HDME) allergen. Consistent with these findings, interleukin (IL)-4 and IL-13 levels were reduced in the lungs of GRK2(+/-) mice in a HMDE mouse model of asthma. Because Th2 cells are the major source of these cytokines during asthma, we determined the role of GRK2 in regulating T cell-specific responses in our HMDE mouse model. We observed a significant reduction of airway hyperresponsiveness (AHR), lung eosinophil and lymphocyte counts, serum IgE, Th2 cytokines (IL-4 and IL-13), goblet cell hyperplasia and mucus production in mice that had reduced GRK2 expression specifically in T cells. Collectively, our studies reveal an important role for GRK2 in regulating T cell response during asthma pathogenesis and further elucidation of the mechanisms through which GRK2 modulates airway inflammation will lead to the development of new therapeutic strategies for asthma. CI - Copyright (c) 2021 Kammala, Yang, Panettieri, Das and Subramanian. FAU - Kammala, Ananth K AU - Kammala AK AD - Department of Physiology, Michigan State University, East Lansing, MI, United States. FAU - Yang, Canchai AU - Yang C AD - Department of Physiology, Michigan State University, East Lansing, MI, United States. FAU - Panettieri, Reynold A AU - Panettieri RA AD - Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ, United States. FAU - Das, Rupali AU - Das R AD - Department of Physiology, Michigan State University, East Lansing, MI, United States. FAU - Subramanian, Hariharan AU - Subramanian H AD - Department of Physiology, Michigan State University, East Lansing, MI, United States. LA - eng GR - P01 HL114471/HL/NHLBI NIH HHS/United States GR - UL1 TR003017/TR/NCATS NIH HHS/United States PT - Journal Article DEP - 20210517 PL - Switzerland TA - Front Allergy JT - Frontiers in allergy JID - 9918227355906676 PMC - PMC8974720 OTO - NOTNLM OT - G protein-coupled receptor kinase 2 OT - GRK2 OT - airway hyperresponsiveness OT - airway inflammation OT - allergic diseases OT - asthma OT - goblet cell hyperplasia OT - house dust mite extract COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/04/08 06:00 MHDA- 2022/04/08 06:01 PMCR- 2021/05/17 CRDT- 2022/04/07 05:19 PHST- 2021/01/29 00:00 [received] PHST- 2021/04/21 00:00 [accepted] PHST- 2022/04/07 05:19 [entrez] PHST- 2022/04/08 06:00 [pubmed] PHST- 2022/04/08 06:01 [medline] PHST- 2021/05/17 00:00 [pmc-release] AID - 10.3389/falgy.2021.656886 [doi] PST - epublish SO - Front Allergy. 2021 May 17;2:656886. doi: 10.3389/falgy.2021.656886. eCollection 2021.