PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion Injury
Summary: Polarized vesicle transport plays an important role in cell polarization, but the mechanisms underlying this process and its role in innate immune responses are not well understood. Here, we describe a phosphorylation-regulated polarization mechanism that is important for neutrophil adhesio...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-06-01
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| Series: | Cell Reports |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211124717307544 |
| _version_ | 1828481350181584896 |
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| author | Qianying Yuan Chunguang Ren Wenwen Xu Björn Petri Jiasheng Zhang Yong Zhang Paul Kubes Dianqing Wu Wenwen Tang |
| author_facet | Qianying Yuan Chunguang Ren Wenwen Xu Björn Petri Jiasheng Zhang Yong Zhang Paul Kubes Dianqing Wu Wenwen Tang |
| author_sort | Qianying Yuan |
| collection | DOAJ |
| description | Summary: Polarized vesicle transport plays an important role in cell polarization, but the mechanisms underlying this process and its role in innate immune responses are not well understood. Here, we describe a phosphorylation-regulated polarization mechanism that is important for neutrophil adhesion to endothelial cells during inflammatory responses. We show that the protein kinase PKN1 phosphorylates RPH3A, which enhances binding of RPH3A to guanosine triphosphate (GTP)-bound RAB21. These interactions are important for polarized localization of RAB21 and RPH3A in neutrophils, which leads to PIP5K1C90 polarization. Consistent with the roles of PIP5K1C90 polarization, the lack of PKN1 or RPH3A impairs neutrophil integrin activation, adhesion to endothelial cells, and infiltration in inflammatory models. Furthermore, myeloid-specific loss of PKN1 decreases tissue injury in a renal ischemia-reperfusion model. Thus, this study characterizes a mechanism for protein polarization in neutrophils and identifies a potential protein kinase target for therapeutic intervention in reperfusion-related tissue injury. : Yuan et al. elucidate a mechanism by which PKN1 regulates directional trafficking of RAB21 vesicles via phosphorylation RPH3A, a RAB21 effector. This mechanism underlies the polarized distribution of PIP5K1C90 in neutrophils and is important for neutrophil recruitment during inflammation. Keywords: vesicle trafficking, neutrophil polarization, adhesion, renal ischemia-reperfusion, PKN1, RAB21, RPH3A, PIP5K1C90 |
| first_indexed | 2024-12-11T07:55:13Z |
| format | Article |
| id | doaj.art-1de2b7092784417395d7e291ffb6d21f |
| institution | Directory Open Access Journal |
| issn | 2211-1247 |
| language | English |
| last_indexed | 2024-12-11T07:55:13Z |
| publishDate | 2017-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cell Reports |
| spelling | doaj.art-1de2b7092784417395d7e291ffb6d21f2022-12-22T01:15:15ZengElsevierCell Reports2211-12472017-06-01191225862597PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion InjuryQianying Yuan0Chunguang Ren1Wenwen Xu2Björn Petri3Jiasheng Zhang4Yong Zhang5Paul Kubes6Dianqing Wu7Wenwen Tang8Department of Pharmacology, Vascular Biology and Therapeutic Program, Yale School of Medicine, New Haven, CT 06520, USADepartment of Pharmacology, Vascular Biology and Therapeutic Program, Yale School of Medicine, New Haven, CT 06520, USADepartment of Pharmacology, Vascular Biology and Therapeutic Program, Yale School of Medicine, New Haven, CT 06520, USASnyder Institute for Chronic Diseases Mouse Phenomics Resource Laboratory, University of Calgary, Calgary, AB T2N 4N1, Canada; Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, CanadaDepartment of Internal Medicine, Yale School of Medicine, New Haven, CT 06520, USADepartment of Pharmacology, Vascular Biology and Therapeutic Program, Yale School of Medicine, New Haven, CT 06520, USASnyder Institute for Chronic Diseases Mouse Phenomics Resource Laboratory, University of Calgary, Calgary, AB T2N 4N1, CanadaDepartment of Pharmacology, Vascular Biology and Therapeutic Program, Yale School of Medicine, New Haven, CT 06520, USA; Corresponding authorDepartment of Pharmacology, Vascular Biology and Therapeutic Program, Yale School of Medicine, New Haven, CT 06520, USA; Corresponding authorSummary: Polarized vesicle transport plays an important role in cell polarization, but the mechanisms underlying this process and its role in innate immune responses are not well understood. Here, we describe a phosphorylation-regulated polarization mechanism that is important for neutrophil adhesion to endothelial cells during inflammatory responses. We show that the protein kinase PKN1 phosphorylates RPH3A, which enhances binding of RPH3A to guanosine triphosphate (GTP)-bound RAB21. These interactions are important for polarized localization of RAB21 and RPH3A in neutrophils, which leads to PIP5K1C90 polarization. Consistent with the roles of PIP5K1C90 polarization, the lack of PKN1 or RPH3A impairs neutrophil integrin activation, adhesion to endothelial cells, and infiltration in inflammatory models. Furthermore, myeloid-specific loss of PKN1 decreases tissue injury in a renal ischemia-reperfusion model. Thus, this study characterizes a mechanism for protein polarization in neutrophils and identifies a potential protein kinase target for therapeutic intervention in reperfusion-related tissue injury. : Yuan et al. elucidate a mechanism by which PKN1 regulates directional trafficking of RAB21 vesicles via phosphorylation RPH3A, a RAB21 effector. This mechanism underlies the polarized distribution of PIP5K1C90 in neutrophils and is important for neutrophil recruitment during inflammation. Keywords: vesicle trafficking, neutrophil polarization, adhesion, renal ischemia-reperfusion, PKN1, RAB21, RPH3A, PIP5K1C90http://www.sciencedirect.com/science/article/pii/S2211124717307544 |
| spellingShingle | Qianying Yuan Chunguang Ren Wenwen Xu Björn Petri Jiasheng Zhang Yong Zhang Paul Kubes Dianqing Wu Wenwen Tang PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion Injury Cell Reports |
| title | PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion Injury |
| title_full | PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion Injury |
| title_fullStr | PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion Injury |
| title_full_unstemmed | PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion Injury |
| title_short | PKN1 Directs Polarized RAB21 Vesicle Trafficking via RPH3A and Is Important for Neutrophil Adhesion and Ischemia-Reperfusion Injury |
| title_sort | pkn1 directs polarized rab21 vesicle trafficking via rph3a and is important for neutrophil adhesion and ischemia reperfusion injury |
| url | http://www.sciencedirect.com/science/article/pii/S2211124717307544 |
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