| Autor: |
Sikarwar AS; Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, 715 McDermot Ave, Winnipeg, R3E 3P4, Canada.; Departments of Oral Biology, University of Manitoba, Winnipeg, Canada., Bhagirath AY; Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, 715 McDermot Ave, Winnipeg, R3E 3P4, Canada.; Departments of Oral Biology, University of Manitoba, Winnipeg, Canada., Dakshinamurti S; Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, 715 McDermot Ave, Winnipeg, R3E 3P4, Canada. shyamala.dakshinamurti@umanitoba.ca.; Departments of Pediatrics, University of Manitoba, Winnipeg, Canada. shyamala.dakshinamurti@umanitoba.ca.; Departments of Physiology, University of Manitoba, Winnipeg, Canada. shyamala.dakshinamurti@umanitoba.ca.; Section of Neonatology, WS012 Women's Hospital, University of Manitoba, 735 Notre Dame Ave, Winnipeg, R3E 0L8, Canada. shyamala.dakshinamurti@umanitoba.ca. |
| Abstrakt: |
G protein-coupled receptors (GPCRs) play a pivotal role in the adaptive responses to cellular stresses such as hypoxia. In addition to influencing cellular gene expression profiles, hypoxic microenvironments can perturb membrane protein localization, altering GPCR effector scaffolding and altering downstream signaling. Studies using proteomics approaches have revealed significant regulation of GPCR and G proteins by their state of post-translational modification. The aim of this review is to examine the effects of post-translational modifications on membrane localization and signaling of GPCR-G protein complexes, with an emphasis on vascular prostanoid receptors, and to highlight what is known about the effect of cellular hypoxia on these mechanisms. Understanding post-translational modifications of protein targets will help to define GPCR targets in treatment of disease, and to inform research into mechanisms of hypoxic cellular responses. |
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