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Gu H, Zhu Y, Yang J, Jiang R, Deng Y, Li A, Fang Y, Wu Q, Tu H, Chang H, Wen J, Jiang X. Liver-Inspired Polyetherketoneketone Scaffolds Simulate Regenerative Signals and Mobilize Anti-Inflammatory Reserves to Reprogram Macrophage Metabolism for Boosted Osteoporotic Osseointegration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302136. [PMID: 37400369 PMCID: PMC10477864 DOI: 10.1002/advs.202302136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/21/2023] [Indexed: 07/05/2023]
Abstract
Tissue regeneration is regulated by morphological clues of implants in bone defect repair. Engineered morphology can boost regenerative biocascades that conquer challenges such as material bioinertness and pathological microenvironments. Herein, a correlation between the liver extracellular skeleton morphology and the regenerative signaling, namely hepatocyte growth factor receptor (MET), is found to explain the mystery of rapid liver regeneration. Inspired by this unique structure, a biomimetic morphology is prepared on polyetherketoneketone (PEKK) via femtosecond laser etching and sulfonation. The morphology reproduces MET signaling in macrophages, causing positive immunoregulation and optimized osteogenesis. Moreover, the morphological clue activates an anti-inflammatory reserve (arginase-2) to translocate retrogradely from mitochondria to the cytoplasm due to the difference in spatial binding of heat shock protein 70. This translocation enhances oxidative respiration and complex II activity, reprogramming the metabolism of energy and arginine. The importance of MET signaling and arginase-2 in the anti-inflammatory repair of biomimetic scaffolds is also verified via chemical inhibition and gene knockout. Altogether, this study not only provides a novel biomimetic scaffold for osteoporotic bone defect repair that can simulate regenerative signals, but also reveals the significance and feasibility of strategies to mobilize anti-inflammatory reserves in bone regeneration.
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Affiliation(s)
- Hao Gu
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Yuhui Zhu
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Jiawei Yang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Ruixue Jiang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Yuwei Deng
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Anshuo Li
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Yingjing Fang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Qianju Wu
- Stomatological Hospital of Xiamen Medical CollegeXiamen Key Laboratory of Stomatological Disease Diagnosis and TreatmentXiamenFujian361008China
| | - Honghuan Tu
- State Key Laboratory of Advanced Optical Communication Systems and NetworksSchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai200240China
| | - Haishuang Chang
- Shanghai Institute of Precision MedicineShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai200125China
| | - Jin Wen
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Xinquan Jiang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
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Pregnancy-Specific Glycoprotein 9 Enhances Store-Operated Calcium Entry and Nitric Oxide Release in Human Umbilical Vein Endothelial Cells. Diagnostics (Basel) 2023; 13:diagnostics13061134. [PMID: 36980442 PMCID: PMC10047280 DOI: 10.3390/diagnostics13061134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 03/19/2023] Open
Abstract
We explored changes in pregnancy-specific glycoprotein 9 (PSG9) levels in the serum of patients with preeclampsia and the effects and underlying mechanisms of PSG9 effects on calcium (Ca2+) homeostasis and nitric oxide (NO) release in human umbilical vein endothelial cells (HUVECs). Western blotting was used to detect protein expression levels, and an NO fluorescence probe was used to examine NO production. Intracellular Ca2+ concentrations were measured using a Ca2+-sensitive fluorescent dye under a fluorescence microscope. Compared with those in healthy pregnant women, serum PSG9 levels were significantly decreased in patients with preeclampsia. PSG9 (0.1 μg/mL) treatment of HUVECs significantly enhanced the expression levels of store-operated calcium entry (SOCE) channel proteins Orai1 and Orai2, but not Orai3, and of endothelial nitric oxide synthase (eNOS) and NO production. Pretreatment with an inhibitor of SOCE (BTP2) abolished PSG9-enhanced Orai1, Orai2, and eNOS expression levels and NO production in HUVECs. The mechanisms underlying SOCE that were PSG9 enhanced in HUVECs appear to involve the Ca2+/eNOS/NO signaling pathway. These findings suggest that serum PSG9 levels may be a potential biomarker for monitoring the occurrence or development of preeclampsia in pregnancy and that PSG9 may be a potential therapeutic target for the treatment of preeclampsia.
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Wang J, Huang CLH, Zhang Y. Complement C1q Binding Protein (C1QBP): Physiological Functions, Mutation-Associated Mitochondrial Cardiomyopathy and Current Disease Models. Front Cardiovasc Med 2022; 9:843853. [PMID: 35310974 PMCID: PMC8924301 DOI: 10.3389/fcvm.2022.843853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 01/25/2022] [Indexed: 12/03/2022] Open
Abstract
Complement C1q binding protein (C1QBP, p32) is primarily localized in mitochondrial matrix and associated with mitochondrial oxidative phosphorylative function. C1QBP deficiency presents as a mitochondrial disorder involving multiple organ systems. Recently, disease associated C1QBP mutations have been identified in patients with a combined oxidative phosphorylation deficiency taking an autosomal recessive inherited pattern. The clinical spectrum ranges from intrauterine growth restriction to childhood (cardio) myopathy and late-onset progressive external ophthalmoplegia. This review summarizes the physiological functions of C1QBP, its mutation-associated mitochondrial cardiomyopathy shown in the reported available patients and current experimental disease platforms modeling these conditions.
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Affiliation(s)
- Jie Wang
- National Regional Children's Medical Center (Northwest), Xi'an, China
- Key Laboratory of Precision Medicine to Pediatric Diseases of Shaanxi Province, Xi'an, China
- Shaanxi Institute for Pediatric Diseases, Xi'an, China
- Xi'an Key Laboratory of Children's Health and Diseases, Xi'an, China
| | | | - Yanmin Zhang
- National Regional Children's Medical Center (Northwest), Xi'an, China
- Key Laboratory of Precision Medicine to Pediatric Diseases of Shaanxi Province, Xi'an, China
- Shaanxi Institute for Pediatric Diseases, Xi'an, China
- Xi'an Key Laboratory of Children's Health and Diseases, Xi'an, China
- Department of Cardiology of Xi'an Children's Hospital, Affiliated Children's Hospital of Xi'an Jiaotong University, Xi'an, China
- *Correspondence: Yanmin Zhang
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Lee GH, Lee SY, Zheng C, Pham HT, Kim CY, Kim MY, Han EH, Hwang YP, Jeong HG. Effect of 3-caffeoyl, 4-dihydrocaffeoylquinic acid from Salicornia herbacea on endothelial nitric oxide synthase activation via calcium signaling pathway. Toxicol Res 2022; 38:355-364. [DOI: 10.1007/s43188-022-00121-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/26/2021] [Accepted: 01/06/2022] [Indexed: 11/29/2022] Open
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Ling Y, Shi J, Ma Q, Yang Q, Rong Y, He J, Chen M. Vasodilatory Effect of Guanxinning Tablet on Rabbit Thoracic Aorta is Modulated by Both Endothelium-Dependent and -Independent Mechanism. Front Pharmacol 2021; 12:754527. [PMID: 34925014 PMCID: PMC8672209 DOI: 10.3389/fphar.2021.754527] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/29/2021] [Indexed: 11/13/2022] Open
Abstract
Vasodilatory therapy plays an important role in the treatment of cardiovascular diseases, especially hypertension and coronary heart disease. Previous research found that Guanxinning tablet (GXNT), a traditional Chinese compound preparation composed of Salvia miltiorrhiza (Danshen) and Ligusticum chuanxiong (Chuanxiong), increase blood flow in the arteries, but whether vasodilation plays a role in this effect remains unclear. Here, we found that GXNT significantly alleviated the vasoconstriction of isolated rabbit thoracic aorta induced by phenylephrine (PE), norepinephrine (NE), and KCl in a dose-dependent manner with or without endothelial cells (ECs). Changes in calcium ion levels in vascular smooth muscle cells (VSMCs) showed that both intracellular calcium release and extracellular calcium influx through receptor-dependent calcium channel (ROC) declined with GXNT treatment. Experiments to examine potassium channels suggested that endothelium-denuded vessels were also regulated by calcium-activated potassium channels (Kca) and ATP-related potassium channels (KATP) but not voltage-gated potassium channels (kv) and inward rectifying potassium channels (KIR). For endothelium-intact vessels, the nitric oxide (NO) and cyclic guanosine monophosphate (cGMP) contents in vascular tissue obviously increased after GXNT treatment, and pretreatment with the NO synthase inhibitor Nw-nitro-L-arginine methyl ester (L-NAME) or guanylyl cyclase inhibitor methylthionine chloride (MB) significantly inhibited vasodilation. An assessment of NO-related pathway protein expression revealed that GXNT enhanced the expression of phosphorylated endothelial NO synthase (eNOS) in a dose-dependent manner but had no effect on total eNOS, p-Akt, Akt, or PI3K levels in human umbilical vein ECs (HUVECs). In addition to PI3K/AKT signaling, Ca2+/calmodulin (CaM)-Ca2+/CaM-dependent protein kinase II (CaMKII) signaling is a major signal transduction pathway involved in eNOS activation in ECs. Further results showed that free calcium ion levels were decreased in HUVECs with GXNT treatment, accompanied by an increase in p-CaMKII expression, implying an increase in the Ca2+/CaM-Ca2+/CaMKII cascade. Taken together, these findings suggest that the GXNT may have exerted their vasodilative effect by activating the endothelial CaMKII/eNOS signaling pathway in endothelium-intact rings and calcium-related ion channels in endothelium-denuded vessels.
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Affiliation(s)
- Yun Ling
- Animal Experimental Research Center, Academy of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiajun Shi
- Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Quanxin Ma
- Animal Experimental Research Center, Academy of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qinqin Yang
- Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Yili Rong
- Animal Experimental Research Center, Academy of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiangmin He
- The Department of Medicine, Chiatai Qingchunbao Pharmaceutical Co., Ltd., Hangzhou, China
| | - Minli Chen
- Animal Experimental Research Center, Academy of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China.,Laboratory of Integrative Chinese and Western Medicine for the Diagnosis and Treatment of Circulatory Diseases of Zhejiang Province, Hangzhou, China
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Koo BH, Lee J, Jin Y, Lim HK, Ryoo S. Arginase inhibition by rhaponticin increases L-arginine concentration that contributes to Ca2+-dependent eNOS activation. BMB Rep 2021. [PMID: 34078530 PMCID: PMC8560459 DOI: 10.5483/bmbrep.2021.54.10.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Bon-Hyeock Koo
- Department of Biological Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Jonghoon Lee
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea
| | - Younghyun Jin
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea
| | - Hyun Kyo Lim
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea
| | - Sungwoo Ryoo
- Department of Biological Sciences, Kangwon National University, Chuncheon 24341, Korea
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Lee GH, Kim CY, Zheng C, Jin SW, Kim JY, Lee SY, Kim MY, Han EH, Hwang YP, Jeong HG. Rutaecarpine Increases Nitric Oxide Synthesis via eNOS Phosphorylation by TRPV1-Dependent CaMKII and CaMKKβ/AMPK Signaling Pathway in Human Endothelial Cells. Int J Mol Sci 2021; 22:ijms22179407. [PMID: 34502308 PMCID: PMC8431268 DOI: 10.3390/ijms22179407] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 12/20/2022] Open
Abstract
Rutaecarpine (RUT) is a bioactive alkaloid isolated from the fruit of Evodia rutaecarpa that exerts a cellular protective effect. However, its protective effects on endothelial cells and its mechanism of action are still unclear. In this study, we demonstrated the effects of RUT on nitric oxide (NO) synthesis via endothelial nitric oxide synthase (eNOS) phosphorylation in endothelial cells and the underlying molecular mechanisms. RUT treatment promoted NO generation by increasing eNOS phosphorylation. Additionally, RUT induced an increase in intracellular Ca2+ concentration and phosphorylation of Ca2+/calmodulin-dependent protein kinase kinase β (CaMKKβ), AMP-activated protein kinase (AMPK), and Ca2+/calmodulin-dependent kinase II (CaMKII). Inhibition of transient receptor potential vanilloid type 1 (TRPV1) attenuated RUT-induced intracellular Ca2+ concentration and phosphorylation of CaMKII, CaMKKβ, AMPK, and eNOS. Treatment with KN-62 (a CaMKII inhibitor), Compound C (an AMPK inhibitor), and STO-609 (a CaMKKβ inhibitor) suppressed RUT-induced eNOS phosphorylation and NO generation. Interestingly, RUT attenuated the expression of ICAM-1 and VCAM-1 induced by TNF-α and inhibited the inflammation-related NF-κB signaling pathway. Taken together, these results suggest that RUT promotes NO synthesis and eNOS phosphorylation via the Ca2+/CaMKII and CaM/CaMKKβ/AMPK signaling pathways through TRPV1. These findings provide evidence that RUT prevents endothelial dysfunction and benefit cardiovascular health.
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Affiliation(s)
- Gi Ho Lee
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
| | - Chae Yeon Kim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
| | - Chuanfeng Zheng
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
| | - Sun Woo Jin
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
| | - Ji Yeon Kim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
| | - Seung Yeon Lee
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
| | - Mi Yeon Kim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
| | - Eun Hee Han
- Drug & Disease Target Research Team, Division of Bioconvergence Analysis, Korea Basic Science Institute (KBSI), Cheongju 28119, Korea;
| | | | - Hye Gwang Jeong
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (G.H.L.); (C.Y.K.); (C.Z.); (S.W.J.); (J.Y.K.); (S.Y.L.); (M.Y.K.)
- Correspondence: ; Tel.: +82-42-821-5936
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Shosha E, Fouda AY, Lemtalsi T, Haigh S, Fulton D, Ibrahim A, Al-Shabrawey M, Caldwell RW, Caldwell RB. Endothelial arginase 2 mediates retinal ischemia/reperfusion injury by inducing mitochondrial dysfunction. Mol Metab 2021; 53:101273. [PMID: 34139341 PMCID: PMC8274341 DOI: 10.1016/j.molmet.2021.101273] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/05/2021] [Accepted: 06/11/2021] [Indexed: 12/19/2022] Open
Abstract
Objective Retinal ischemic disease is a major cause of vision loss. Current treatment options are limited to late-stage diseases, and the molecular mechanisms of the initial insult are not fully understood. We have previously shown that the deletion of the mitochondrial arginase isoform, arginase 2 (A2), limits neurovascular injury in models of ischemic retinopathy. Here, we investigated the involvement of A2-mediated alterations in mitochondrial dynamics and function in the pathology. Methods We used wild-type (WT), global A2 knockout (A2KO-) mice, cell-specific A2 knockout mice subjected to retinal ischemia/reperfusion (I/R), and bovine retinal endothelial cells (BRECs) subjected to an oxygen-glucose deprivation/reperfusion (OGD/R) insult. We used western blotting to measure levels of cell stress and death markers and the mitochondrial fragmentation protein, dynamin related protein 1 (Drp1). We also used live cell mitochondrial labeling and Seahorse XF analysis to evaluate mitochondrial fragmentation and function, respectively. Results We found that the global deletion of A2 limited the I/R-induced disruption of retinal layers, fundus abnormalities, and albumin extravasation. The specific deletion of A2 in endothelial cells was protective against I/R-induced neurodegeneration. The OGD/R insult in BRECs increased A2 expression and induced cell stress and cell death, along with decreased mitochondrial respiration, increased Drp1 expression, and mitochondrial fragmentation. The overexpression of A2 in BREC also decreased mitochondrial respiration, promoted increases in the expression of Drp1, mitochondrial fragmentation, and cell stress and resulted in decreased cell survival. In contrast, the overexpression of the cytosolic isoform, arginase 1 (A1), did not affect these parameters. Conclusions This study is the first to show that A2 in endothelial cells mediates retinal ischemic injury through a mechanism involving alterations in mitochondrial dynamics and function. Ischemic retinopathy is a common feature of blinding eye disease. Arginase 2 overexpression in endothelial cells induces mitochondrial dysfunction. Endothelial-specific arginase 2 deletion improves neuronal survival after ischemia. Endothelial cell arginase 2 plays a crucial role in ischemic retinal injury.
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Affiliation(s)
- Esraa Shosha
- Vascular Biology Center, Augusta University, Augusta, GA, USA; Department of Clinical Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt; Vision Discovery Institute, Augusta University, Augusta, GA, USA; Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Abdelrahman Y Fouda
- Vascular Biology Center, Augusta University, Augusta, GA, USA; Department of Clinical Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt; Vision Discovery Institute, Augusta University, Augusta, GA, USA; Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Tahira Lemtalsi
- Vascular Biology Center, Augusta University, Augusta, GA, USA; Vision Discovery Institute, Augusta University, Augusta, GA, USA; Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Stephen Haigh
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - David Fulton
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - Ahmed Ibrahim
- Vision Discovery Institute, Augusta University, Augusta, GA, USA; Wayne State University, Department of Ophthalmology, Visual, and Anatomical Sciences, Department of Pharmacology, Detroit, MI, USA; Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mohamed Al-Shabrawey
- Vision Discovery Institute, Augusta University, Augusta, GA, USA; Department of Oral Biology, Dental College of Georgia, Augusta, GA, USA
| | - R William Caldwell
- Vision Discovery Institute, Augusta University, Augusta, GA, USA; Department of Pharmacology and Toxicology, Augusta University, Augusta, GA, USA
| | - Ruth B Caldwell
- Vascular Biology Center, Augusta University, Augusta, GA, USA; Vision Discovery Institute, Augusta University, Augusta, GA, USA; Charlie Norwood VA Medical Center, Augusta, GA, USA.
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Redox and Inflammatory Signaling, the Unfolded Protein Response, and the Pathogenesis of Pulmonary Hypertension. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1304:333-373. [PMID: 34019276 DOI: 10.1007/978-3-030-68748-9_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Protein folding overload and oxidative stress disrupt endoplasmic reticulum (ER) homeostasis, generating reactive oxygen species (ROS) and activating the unfolded protein response (UPR). The altered ER redox state induces further ROS production through UPR signaling that balances the cell fates of survival and apoptosis, contributing to pulmonary microvascular inflammation and dysfunction and driving the development of pulmonary hypertension (PH). UPR-induced ROS production through ER calcium release along with NADPH oxidase activity results in endothelial injury and smooth muscle cell (SMC) proliferation. ROS and calcium signaling also promote endothelial nitric oxide (NO) synthase (eNOS) uncoupling, decreasing NO production and increasing vascular resistance through persistent vasoconstriction and SMC proliferation. C/EBP-homologous protein further inhibits eNOS, interfering with endothelial function. UPR-induced NF-κB activity regulates inflammatory processes in lung tissue and contributes to pulmonary vascular remodeling. Conversely, UPR-activated nuclear factor erythroid 2-related factor 2-mediated antioxidant signaling through heme oxygenase 1 attenuates inflammatory cytokine levels and protects against vascular SMC proliferation. A mutation in the bone morphogenic protein type 2 receptor (BMPR2) gene causes misfolded BMPR2 protein accumulation in the ER, implicating the UPR in familial pulmonary arterial hypertension pathogenesis. Altogether, there is substantial evidence that redox and inflammatory signaling associated with UPR activation is critical in PH pathogenesis.
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Koo BH, Won MH, Kim YM, Ryoo S. Arginase II protein regulates Parkin-dependent p32 degradation that contributes to Ca2+-dependent eNOS activation in endothelial cells. Cardiovasc Res 2021; 118:1344-1358. [PMID: 33964139 PMCID: PMC8953445 DOI: 10.1093/cvr/cvab163] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 05/06/2021] [Indexed: 12/13/2022] Open
Abstract
Aims Arginase II (ArgII) plays a key role in the regulation of Ca2+ between the cytosol and mitochondria in a p32-dependent manner. p32 contributes to endothelial nitric oxide synthase (eNOS) activation through the Ca2+/CaMKII/AMPK/p38MAPK/Akt signalling cascade. Therefore, we investigated a novel function of ArgII in the regulation of p32 stability. Methods and results mRNA levels were measured by quantitative reverse transcription-PCR, and protein levels and activation were confirmed by western blot analysis. Ca2+ concentrations were measured by FACS analysis and a vascular tension assay was performed. ArgII bound to p32, and ArgII protein knockdown using siArgII facilitated the ubiquitin-dependent proteasomal degradation of p32. β-lactone, a proteasome inhibitor, inhibited the p32 degradation associated with endothelial dysfunction in a Ca2+-dependent manner. The amino acids Lys154, Lys 180, and Lys220 of the p32 protein were identified as putative ubiquitination sites. When these sites were mutated, p32 was resistant to degradation in the presence of siArgII, and endothelial function was impaired. Knockdown of Pink/Parkin as an E3-ubiquitin ligase with siRNAs resulted in increased p32, decreased [Ca2+]c, and attenuated CaMKII-dependent eNOS activation by siArgII. siArgII-dependent Parkin activation was attenuated by KN93, a CaMKII inhibitor. Knockdown of ArgII mRNA and its gene, but not inhibition of its activity, accelerated the interaction between p32 and Parkin and reduced p32 levels. In aortas of ArgII−/− mice, p32 levels were reduced by activated Parkin and inhibition of CaMKII attenuated Parkin-dependent p32 lysis. siParkin blunted the phosphorylation of the activated CaMKII/AMPK/p38MAPK/Akt/eNOS signalling cascade. However, ApoE−/− mice fed a high-cholesterol diet had greater ArgII activity, significantly attenuated phosphorylation of Parkin, and increased p32 levels. Incubation with siArgII augmented p32 ubiquitination through Parkin activation, and induced signalling cascade activation. Conclusion The results suggest a novel function for ArgII protein in Parkin-dependent ubiquitination of p32 that is associated with Ca2+-mediated eNOS activation in endothelial cells.
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Affiliation(s)
| | | | - Young-Myeong Kim
- Molecular and Cellular Biochemistry, Kangwon National University, Chuncheon, 24341, Korea
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Su H, Zeng H, He X, Zhu SH, Chen JX. Histone Acetyltransferase p300 Inhibitor Improves Coronary Flow Reserve in SIRT3 (Sirtuin 3) Knockout Mice. J Am Heart Assoc 2020; 9:e017176. [PMID: 32865093 PMCID: PMC7727016 DOI: 10.1161/jaha.120.017176] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Coronary microvascular dysfunction is common in patients of myocardial infarction with non‐obstructive coronary artery disease. Coronary flow reserve (CFR) reflects coronary microvascular function and is a powerful independent index of coronary microvascular dysfunction and heart failure. Our previous studies showed that knockout of SIRT3 (Sirtuin 3) decreased CFR and caused a diastolic dysfunction. Few studies focus on the treatment of impaired CFR and heart failure. In the present study, we explored the role of C646, a histone acetyltransferase p300 inhibitor, in regulating CFR and cardiac remodeling in SIRT3 knockout (SIRT3KO) mice. Methods and Results After treating with C646 for 14 days, CFR, pulse‐wave velocity, and cardiac function were measured in SIRT3KO mice. SIRT3KO mice treated with C646 showed a significant improvement of CFR, pulse‐wave velocity, ejection fraction, and fractional shortening. Treatment with C646 reversed pre‐existing cardiac fibrosis, hypertrophy, and capillary rarefaction in SIRT3KO mice. Mechanistically, knockout of Sirtuin 3 resulted in significant increases in p300 expression and H3K56 acetylation. Treatment with C646 significantly reduced levels of p300 and H3K56 acetylation in SIRT3KO mice. Furthermore, treatment with C646 increased endothelial nitric oxide synthase expression and reduced arginase II expression and activity. The expression of NF‐κB (nuclear factor kappa‐light‐chain‐enhancer of activated B cells) and VCAM‐1 (vascular cell adhesion molecule 1) was also significantly suppressed by C646 treatment in SIRT3KO mice. Conclusions C646 treatment attenuated p300 and H3K56 acetylation and improved arterial stiffness and CFR via improvement of endothelial cell (EC) dysfunction and suppression of NF‐κB.
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Affiliation(s)
- Han Su
- Department of Pharmacology and Toxicology University of Mississippi Medical Center Jackson MS.,Department of General Surgery Third Xiangya Hospital Central South University Changsha China
| | - Heng Zeng
- Department of Pharmacology and Toxicology University of Mississippi Medical Center Jackson MS
| | - Xiaochen He
- Department of Pharmacology and Toxicology University of Mississippi Medical Center Jackson MS
| | - Shai-Hong Zhu
- Department of General Surgery Third Xiangya Hospital Central South University Changsha China
| | - Jian-Xiong Chen
- Department of Pharmacology and Toxicology University of Mississippi Medical Center Jackson MS
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12
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Ataei Ataabadi E, Golshiri K, Jüttner A, Krenning G, Danser AHJ, Roks AJM. Nitric Oxide-cGMP Signaling in Hypertension: Current and Future Options for Pharmacotherapy. Hypertension 2020; 76:1055-1068. [PMID: 32829664 DOI: 10.1161/hypertensionaha.120.15856] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
For the treatment of systemic hypertension, pharmacological intervention in nitric oxide-cyclic guanosine monophosphate signaling is a well-explored but unexploited option. In this review, we present the identified drug targets, including oxidases, mitochondria, soluble guanylyl cyclase, phosphodiesterase 1 and 5, and protein kinase G, important compounds that modulate them, and the current status of (pre)clinical development. The mode of action of these compounds is discussed, and based upon this, the clinical opportunities. We conclude that drugs that directly target the enzymes of the nitric oxide-cyclic guanosine monophosphate cascade are currently the most promising compounds, but that none of these compounds is under investigation as a treatment option for systemic hypertension.
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Affiliation(s)
- Ehsan Ataei Ataabadi
- From the Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands (E.A.A., K.G., A.J., A.H.J.D., A.J.M.R.)
| | - Keivan Golshiri
- From the Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands (E.A.A., K.G., A.J., A.H.J.D., A.J.M.R.)
| | - Annika Jüttner
- From the Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands (E.A.A., K.G., A.J., A.H.J.D., A.J.M.R.)
| | - Guido Krenning
- Sulfateq B.V., Groningen, the Netherlands (G.K.).,Cardiovascular Regenerative Medicine, Department Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, the Netherlands (G.K.)
| | - A H Jan Danser
- From the Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands (E.A.A., K.G., A.J., A.H.J.D., A.J.M.R.)
| | - Anton J M Roks
- From the Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands (E.A.A., K.G., A.J., A.H.J.D., A.J.M.R.)
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13
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Choi K, Koo BH, Yoon BJ, Jung M, Yun HY, Jeon BH, Won MH, Kim YM, Mun JY, Lim HK, Ryoo S. Overexpressed p32 localized in the endoplasmic reticulum and mitochondria negatively regulates calcium‑dependent endothelial nitric oxide synthase activit. Mol Med Rep 2020; 22:2395-2403. [PMID: 32705193 PMCID: PMC7411372 DOI: 10.3892/mmr.2020.11307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/14/2020] [Indexed: 11/23/2022] Open
Abstract
The p32 protein plays a crucial role in the regulation of cytosolic Ca2+ concentrations ([Ca2+]c) that contributes to the Ca2+-dependent signaling cascade. Using an adenovirus and plasmid p32-overexpression system, the aim of the study was to evaluate the role of p32 in the regulation of [Ca2+] and its potential associated with Ca2+-dependent endothelial nitric oxide synthase (eNOS) activation in endothelial cells. Using electron and confocal microscopic analysis, p32 overexpression was observed to be localized to mitochondria and the endoplasmic reticulum and played an important role in Ca2+ translocation, resulting in increased [Ca2+] in these organelles and reducing cytosolic [Ca2+] ([Ca2+]c). This decreased [Ca2+]c following p32 overexpression attenuated the Ca2+-dependent signaling cascade of calcium/calmodulin dependent protein kinase II (CaMKII)/AKT/eNOS phosphorylation. Moreover, in aortic endothelia of wild-type mice intravenously administered adenovirus encoding the p32 gene, increased p32 levels reduced NO production and accelerated reactive oxygen species (ROS) generation. In a vascular tension assay, p32 overexpression decreased acetylcholine (Ach)-induced vasorelaxation and augmented phenylephrine (PE)-dependent vasoconstriction. Notably, decreased levels of arginase II (ArgII) protein using siArgII were associated with downregulation of overexpressed p32 protein, which contributed to CaMKII-dependent eNOS phosphorylation at Ser1177. These results indicated that increased protein levels of p32 caused endothelial dysfunction through attenuation of the Ca2+-dependent signaling cascade and that ArgII protein participated in the stability of p32. Therefore, p32 may be a novel target for the treatment of vascular diseases associated with endothelial disorders.
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Affiliation(s)
- Kwanhoon Choi
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon 26426, Republic of Korea
| | - Bon-Hyeock Koo
- Department of Biological Sciences, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Byeong Jun Yoon
- Department of Biological Sciences, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Minkyo Jung
- Department of Neural Circuits Research, Korea Brain Research Institute, Dong, Daegu 41068, Republic of Korea
| | - Hye Young Yun
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon 26426, Republic of Korea
| | - Byung Hwa Jeon
- Department of Physiology, School of Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Ji Young Mun
- Department of Neural Circuits Research, Korea Brain Research Institute, Dong, Daegu 41068, Republic of Korea
| | - Hyun Kyo Lim
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon 26426, Republic of Korea
| | - Sungwoo Ryoo
- Department of Biological Sciences, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
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14
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Gomez-Acevedo H, Dai Y, Strub G, Shawber C, Wu JK, Richter GT. Identification of putative biomarkers for Infantile Hemangiomas and Propranolol treatment via data integration. Sci Rep 2020; 10:3261. [PMID: 32094357 PMCID: PMC7039967 DOI: 10.1038/s41598-020-60025-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 12/20/2019] [Indexed: 12/29/2022] Open
Abstract
Infantile hemangiomas (IHs) are the most common benign tumors in early childhood. They show a distinctive mechanism of tumor growth in which a rapid proliferative phase is followed by a regression phase (involution). Propranolol is an approved treatment for IHs, but its mechanism of action remains unclear. We integrated and harmonized microRNA and mRNA transcriptome data from newly generated microarray data on IHs with publicly available data on toxicological transcriptomics from propranolol exposure, and with microRNA data from IHs and propranolol exposure. We identified subsets of putative biomarkers for proliferation and involution as well as a small set of putative biomarkers for propranolol's mechanism of action for IHs, namely EPAS1, LASP1, SLC25A23, MYO1B, and ALDH1A1. Based on our integrative data approach and confirmatory experiments, we concluded that hypoxia in IHs is regulated by EPAS1 (HIF-2α) instead of HIF-1α, and also that propranolol-induced apoptosis in endothelial cells may occur via mitochondrial stress.
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Affiliation(s)
- Horacio Gomez-Acevedo
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.
| | - Yuemeng Dai
- Mesquite Rehabilitation Institute, Mesquite, Texas, USA
| | - Graham Strub
- Department of Otolaryngology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Carrie Shawber
- Department of Surgery, New York-Presbyterian/Morgan Stanley Children's Hospital, Columbia University, New York, New York, USA
| | - June K Wu
- Department of Reproductive Sciences in Obstetrics & Gynecology and Surgery, Columbia University, New York, New York, USA
| | - Gresham T Richter
- Department of Otolaryngology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children's Hospital, Little Rock, Arkansas, USA
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15
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Koo BH, Won MH, Kim YM, Ryoo S. p32-Dependent p38 MAPK Activation by Arginase II Downregulation Contributes to Endothelial Nitric Oxide Synthase Activation in HUVECs. Cells 2020; 9:cells9020392. [PMID: 32046324 PMCID: PMC7072651 DOI: 10.3390/cells9020392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/26/2020] [Accepted: 02/05/2020] [Indexed: 12/30/2022] Open
Abstract
Arginase II reciprocally regulates endothelial nitric oxide synthase (eNOS) through a p32-dependent Ca2+ control. We investigated the signaling pathway of arginase II-dependent eNOS phosphorylation. Western blot analysis was applied for examining protein activation and [Ca2+]c was analyzed by microscopic and FACS analyses. Nitric oxide (NO) and reactive oxygen species (ROS) productions were measured using specific fluorescent dyes under microscopy. NO signaling pathway was tested by measuring vascular tension. Following arginase II downregulation by chemical inhibition or gene knockout (KO, ArgII−/−), increased eNOS phosphorylation at Ser1177 and decreased phosphorylation at Thr495 was depend on p38 MAPK activation, which induced by CaMKII activation through p32-dependent increase in [Ca2+]c. The protein amount of p32 negatively regulated p38 MAPK activation. p38 MAPK contributed to Akt-induced eNOS phosphorylation at Ser1177 that resulted in accelerated NO production and reduced reactive oxygen species production in aortic endothelia. In vascular tension assay, p38 MAPK inhibitor decreased acetylcholine-induced vasorelaxation responses and increased phenylephrine-dependent vasoconstrictive responses. In ApoE−/− mice fed a high cholesterol diet, arginase II inhibition restored p32/CaMKII/p38 MAPK/Akt/eNOS signaling cascade that was attenuated by p38 MAPK inhibition. Here, we demonstrated a novel signaling pathway contributing to understanding of the relationship between arginase II, endothelial dysfunction, and atherogenesis.
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Affiliation(s)
- Bon-Hyeock Koo
- Department of Biological Sciences, Kangwon National University, Chuncheon, Gangwon 24341, Korea;
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea;
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea;
| | - Sungwoo Ryoo
- Department of Biological Sciences, Kangwon National University, Chuncheon, Gangwon 24341, Korea;
- Correspondence: ; Tel.: +82-33-250-8534; Fax: +82-33-251-3990
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16
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Koo BH, Hwang HM, Yi BG, Lim HK, Jeon BH, Hoe KL, Kwon YG, Won MH, Kim YM, Berkowitz DE, Ryoo S. Arginase II Contributes to the Ca 2+/CaMKII/eNOS Axis by Regulating Ca 2+ Concentration Between the Cytosol and Mitochondria in a p32-Dependent Manner. J Am Heart Assoc 2019; 7:e009579. [PMID: 30371203 PMCID: PMC6222941 DOI: 10.1161/jaha.118.009579] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Arginase II activity contributes to reciprocal regulation of endothelial nitric oxide synthase (eNOS). We tested the hypotheses that arginase II activity participates in the regulation of Ca2+/Ca2+/calmodulin‐dependent kinase II/eNOS activation, and this process is dependent on mitochondrial p32. Methods and Results Downregulation of arginase II increased the concentration of cytosolic Ca2+ ([Ca2+]c) and decreased mitochondrial Ca2+ ([Ca2+]m) in microscopic and fluorescence‐activated cell sorting analyses, resulting in augmented eNOS Ser1177 phosphorylation and decreased eNOS Thr495 phosphorylation through Ca2+/Ca2+/calmodulin‐dependent kinase II. These changes were observed in human umbilical vein endothelial cells treated with small interfering RNA against p32 (sip32). Using matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry, fluorescence immunoassay, and ion chromatography, inhibition of arginase II reduced the amount of spermine, a binding molecule, and the release of Ca2+ from p32. In addition, arginase II gene knockdown using small interfering RNA and knockout arginase II‐null mice resulted in reduced p32 protein level. In the aortas of wild‐type mice, small interfering RNA against p32 induced eNOS Ser1177 phosphorylation and enhanced NO‐dependent vasorelaxation. Arginase activity, p32 protein expression, spermine amount, and [Ca2+]m were increased in the aortas from apolipoprotein E (ApoE−/−) mice fed a high‐cholesterol diet, and intravenous administration of small interfering RNA against p32 restored Ca2+/Ca2+/calmodulin‐dependent kinase II‐dependent eNOS Ser1177 phosphorylation and improved endothelial dysfunction. The effects of arginase II downregulation were not associated with elevated NO production when tested in aortic endothelia from eNOS knockout mice. Conclusions These data demonstrate a novel function of arginase II in regulation of Ca2+‐dependent eNOS phosphorylation. This novel mechanism drives arginase activation, mitochondrial dysfunction, endothelial dysfunction, and atherogenesis.
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Affiliation(s)
- Bon-Hyeock Koo
- 1 Department of Biology School of medicine Kangwon National University Chuncheon Korea
| | - Hye-Mi Hwang
- 1 Department of Biology School of medicine Kangwon National University Chuncheon Korea
| | - Bong-Gu Yi
- 1 Department of Biology School of medicine Kangwon National University Chuncheon Korea
| | - Hyun Kyo Lim
- 4 Department of Anesthesiology and Pain Medicine Yonsei University Wonju College of Medicine Wonju Korea
| | - Byeong Hwa Jeon
- 5 Infectious Signaling Network Research Center Department of Physiology School of Medicine Chungnam National University Daejeon Korea
| | - Kwang Lae Hoe
- 6 Department of New Drug Discovery and Development Chungnam National University Daejeon Korea
| | | | - Moo-Ho Won
- 2 Department of Neurobiology School of medicine Kangwon National University Chuncheon Korea
| | - Young Myeong Kim
- 3 College of Natural Sciences and Departments of Molecular and Cellular Biochemistry School of medicine Kangwon National University Chuncheon Korea
| | - Dan E Berkowitz
- 8 Department of Anesthesiology and Critical Care Medicine Johns Hopkins University Baltimore MD
| | - Sungwoo Ryoo
- 1 Department of Biology School of medicine Kangwon National University Chuncheon Korea
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17
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Choi CI, Koo BH, Hong D, Kwon HJ, Hoe KL, Won MH, Kim YM, Lim HK, Ryoo S. Resveratrol is an arginase inhibitor contributing to vascular smooth muscle cell vasoconstriction via increasing cytosolic calcium. Mol Med Rep 2019; 19:3767-3774. [PMID: 30896798 DOI: 10.3892/mmr.2019.10035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/28/2019] [Indexed: 11/05/2022] Open
Abstract
The contractility of vascular smooth muscle cells (VSMCs) controls the lumen diameter of vessels, thus serving a role in regulating blood pressure and organ blood flow. Although arginases are known to have numerous effects in the biological activities of VSMCs, the effects of arginase II on the constriction of VSMCs has not yet been investigated. When conducting a natural products screen for an inhibitor against arginase, the present study identified that a relatively high concentration of resveratrol (RSV) exhibited arginase inhibitory activity. Therefore, the present study investigated whether RSV could regulate VSMCs contractions and the underlying mechanism. Arginase inhibition by RSV led to an increase in the concentration of the substrate L‑Arg and an accompanying increase in the cytosol Ca2+ concentration [(Ca2+)c] in VSMCs. The increased [Ca2+]c induced by RSV and L‑Arg treatments resulted in CaMKII‑dependent MLC20 phosphorylation. The effects of RSV on VSMCs were maintained even when VSMCs were pre‑treated with sirtinol, an inhibitor of Sirt proteins. In a vascular tension assay with de‑endothelialized aortic vessels, vasoconstrictor responses, which were measured using phenylephrine (PE), were significantly enhanced in the RSV‑ and L‑Arg‑treated vessels. Therefore, although arginase inhibition has exhibited beneficial effects in various diseases, care is required when considering administration of an arginase inhibitor to patients with vessels endothelial dysfunction as RSV can induce vessel contraction.
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Affiliation(s)
- Chang Ik Choi
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon 26426, Republic of Korea
| | - Bon Hyeock Koo
- Department of Biology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Dongeui Hong
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon 26426, Republic of Korea
| | - Hyung Joo Kwon
- Department of Microbiology, School of Medicine, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Kwang Lae Hoe
- New Drug Discovery and Development, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Moo Ho Won
- Department of Neurobiology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Young Myeong Kim
- Department of Molecular and Cellular Biochemistry, and Neurobiology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Hyun Kyo Lim
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon 26426, Republic of Korea
| | - Sungwoo Ryoo
- Department of Biology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
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