Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function
Endothelial dysfunction plays a pivotal role in the development and progression of diabetic vascular complications. Naringenin (Nar) is a flavanone bioactive isolated from citrus fruits known to have in vitro and in vivo antidiabetic properties. However, whether Nar affects endothelial function rema...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | International Journal of Endocrinology |
| Online Access: | http://dx.doi.org/10.1155/2022/7275765 |
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| author | Zhihan Zhang Hui Liu Xiang Hu Yikang He Lu Li Xinyu Yang Changhua Wang Mingbai Hu Shengxiang Tao |
| author_facet | Zhihan Zhang Hui Liu Xiang Hu Yikang He Lu Li Xinyu Yang Changhua Wang Mingbai Hu Shengxiang Tao |
| author_sort | Zhihan Zhang |
| collection | DOAJ |
| description | Endothelial dysfunction plays a pivotal role in the development and progression of diabetic vascular complications. Naringenin (Nar) is a flavanone bioactive isolated from citrus fruits known to have in vitro and in vivo antidiabetic properties. However, whether Nar affects endothelial function remains unclear in diabetes or under high-glucose (HG) condition. Using an in vitro model of hyperglycemia in human umbilical vein endothelial cells (HUVECs), we found that Nar administration markedly attenuated HG-induced alterations of endothelial function, evidenced by the mitigation of oxidative stress and inflammation, the reduction of cell adhesion molecular expressions, and the improvement of insulin resistance. We also found that HG exposure significantly reduced the levels of intracellular heat shock protein 70 (iHSP70 or iHSPA1A) and the release of HSP70 from HUVECs. HSP70 depletion mimicked and clearly diminished the protective effects of Nar on HG-induced alterations of endothelial function. In addition, Nar treatment significantly enhanced iHSP70 protein levels through a transcription-dependent manner. These results demonstrated that Nar could protect HUVECs against HG-induced alterations of endothelial function through upregulating iHSP70 protein levels. These findings are also helpful in providing new therapeutic strategies that are promising in the clinical use of Nar for the treatment of diabetes and diabetic complications. |
| format | Article |
| id | doaj-art-4fdf2c842d1a4356a26a6fb0ac3cd6ed |
| institution | OA Journals |
| issn | 1687-8345 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Endocrinology |
| spelling | doaj-art-4fdf2c842d1a4356a26a6fb0ac3cd6ed2025-08-20T02:05:38ZengWileyInternational Journal of Endocrinology1687-83452022-01-01202210.1155/2022/7275765Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial FunctionZhihan Zhang0Hui Liu1Xiang Hu2Yikang He3Lu Li4Xinyu Yang5Changhua Wang6Mingbai Hu7Shengxiang Tao8Department of Orthopaedic Trauma and MicrosurgeryDepartment of Orthopaedic Trauma and MicrosurgeryDepartment of Orthopaedic Trauma and MicrosurgeryTongji Medical College Huazhong University of Science and TechnologyDepartment of Pathology and PathophysiologyDepartment of Pathology and PathophysiologyDepartment of Pathology and PathophysiologyDepartment of Breast and Thyroid SurgeryDepartment of Orthopaedic Trauma and MicrosurgeryEndothelial dysfunction plays a pivotal role in the development and progression of diabetic vascular complications. Naringenin (Nar) is a flavanone bioactive isolated from citrus fruits known to have in vitro and in vivo antidiabetic properties. However, whether Nar affects endothelial function remains unclear in diabetes or under high-glucose (HG) condition. Using an in vitro model of hyperglycemia in human umbilical vein endothelial cells (HUVECs), we found that Nar administration markedly attenuated HG-induced alterations of endothelial function, evidenced by the mitigation of oxidative stress and inflammation, the reduction of cell adhesion molecular expressions, and the improvement of insulin resistance. We also found that HG exposure significantly reduced the levels of intracellular heat shock protein 70 (iHSP70 or iHSPA1A) and the release of HSP70 from HUVECs. HSP70 depletion mimicked and clearly diminished the protective effects of Nar on HG-induced alterations of endothelial function. In addition, Nar treatment significantly enhanced iHSP70 protein levels through a transcription-dependent manner. These results demonstrated that Nar could protect HUVECs against HG-induced alterations of endothelial function through upregulating iHSP70 protein levels. These findings are also helpful in providing new therapeutic strategies that are promising in the clinical use of Nar for the treatment of diabetes and diabetic complications.http://dx.doi.org/10.1155/2022/7275765 |
| spellingShingle | Zhihan Zhang Hui Liu Xiang Hu Yikang He Lu Li Xinyu Yang Changhua Wang Mingbai Hu Shengxiang Tao Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function International Journal of Endocrinology |
| title | Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function |
| title_full | Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function |
| title_fullStr | Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function |
| title_full_unstemmed | Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function |
| title_short | Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function |
| title_sort | heat shock protein 70 mediates the protective effect of naringenin on high glucose induced alterations of endothelial function |
| url | http://dx.doi.org/10.1155/2022/7275765 |
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