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Chen WH, Chen CH, Hsu MC, Chang RW, Wang CH, Lee TS. Advances in the molecular mechanisms of statins in regulating endothelial nitric oxide bioavailability: Interlocking biology between eNOS activity and L-arginine metabolism. Biomed Pharmacother 2024; 171:116192. [PMID: 38262153 DOI: 10.1016/j.biopha.2024.116192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 01/25/2024] Open
Abstract
Statins, inhibitors of 3-hydroxy-3-methylglutaryl-coenzyme A, are widely used to treat hypercholesterolemia. In addition, statins have been suggested to reduce the risk of cardiovascular events owing to their pleiotropic effects on the vascular system, including vasodilation, anti-inflammation, anti-coagulation, anti-oxidation, and inhibition of vascular smooth muscle cell proliferation. The major beneficial effect of statins in maintaining vascular homeostasis is the induction of nitric oxide (NO) bioavailability by activating endothelial NO synthase (eNOS) in endothelial cells. The mechanisms underlying the increased NO bioavailability and eNOS activation by statins have been well-established in various fields, including transcriptional and post-transcriptional regulation, kinase-dependent phosphorylation and protein-protein interactions. However, the mechanism by which statins affect the metabolism of L-arginine, a precursor of NO biosynthesis, has rarely been discussed. Autophagy, which is crucial for energy homeostasis, regulates endothelial functions, including NO production and angiogenesis, and is a potential therapeutic target for cardiovascular diseases. In this review, in addition to summarizing the molecular mechanisms underlying increased NO bioavailability and eNOS activation by statins, we also discuss the effects of statins on the metabolism of L-arginine.
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Affiliation(s)
- Wen-Hua Chen
- Graduate Institute and Department of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chia-Hui Chen
- Graduate Institute and Department of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Man-Chen Hsu
- Graduate Institute and Department of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ru-Wen Chang
- Cardiovascular Surgery, Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Chih-Hsien Wang
- Cardiovascular Surgery, Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - Tzong-Shyuan Lee
- Graduate Institute and Department of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan.
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2
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Wu F, Bu S, Wang H. Role of TRP Channels in Metabolism-Related Diseases. Int J Mol Sci 2024; 25:692. [PMID: 38255767 PMCID: PMC10815096 DOI: 10.3390/ijms25020692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/24/2024] Open
Abstract
Metabolic syndrome (MetS), with its high prevalence and significant impact on cardiovascular disease, poses a substantial threat to human health. The early identification of pathological abnormalities related to MetS and prevention of the risk of associated diseases is of paramount importance. Transient Receptor Potential (TRP) channels, a type of nonselective cation channel, are expressed in a variety of tissues and have been implicated in the onset and progression of numerous metabolism-related diseases. This study aims to review and discuss the expression and function of TRP channels in metabolism-related tissues and blood vessels, and to elucidate the interactions and mechanisms between TRP channels and metabolism-related diseases. A comprehensive literature search was conducted using keywords such as TRP channels, metabolic syndrome, pancreas, liver, oxidative stress, diabetes, hypertension, and atherosclerosis across various academic databases including PubMed, Google Scholar, Elsevier, Web of Science, and CNKI. Our review of the current research suggests that TRP channels may be involved in the development of metabolism-related diseases by regulating insulin secretion and release, lipid metabolism, vascular functional activity, oxidative stress, and inflammatory response. TRP channels, as nonselective cation channels, play pivotal roles in sensing various intra- and extracellular stimuli and regulating ion homeostasis by osmosis. They present potential new targets for the diagnosis or treatment of metabolism-related diseases.
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Affiliation(s)
| | | | - Hongmei Wang
- School of Medicine, Southeast University, Nanjing 210009, China; (F.W.); (S.B.)
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3
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Dou F, Wu B, Chen J, Liu T, Yu Z, Chen C. Capsaicin inhibits A7r5 cell senescence via the mitochondrial carrier protein Slc25a12. Exp Cell Res 2023; 433:113856. [PMID: 37995921 DOI: 10.1016/j.yexcr.2023.113856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Aging of vascular smooth muscle cells (VSMCs) is the principal factor responsible for the loss of vascular function, and continuous exposure to high glucose is one of the key factors contributing to the aging of VSMCs. This study established a high glucose-induced senescence model of the A7r5 cell line and used transcriptome sequencing to screen the regulatory target genes of high glucose-induced cellular senescence. The study revealed that the expression of the Slc25a12 gene, which belongs to the solute carrier family 25 member 12, was notably reduced following damage caused by high glucose levels. This inhibition was shown to cause mitochondrial malfunction and cellular senescence. The encoded product of the Slc25a12 gene is a mitochondrial carrier protein that binds to calcium and aids in transporting aspartate for glutamate exchange within the inner mitochondrial membrane. Mitochondrial dysfunction compromises the cell's capacity to resist oxidation and repair damage, and is an inherent element in hastening cellular aging. Moreover, our findings validated that the transient receptor potential vanilloid 1 (TRPV1) agonist capsaicin hindered the decrease in Slc25a12 expression, prevented mitochondrial dysfunction, and blocked cellular senescence. Could the regulation of Slc25a12 expression by capsaicin restore cellular mitochondrial function and restrict senescence? In vitro tests have verified that interference with A7r5 Slc25a12 noticeably diminishes capsaicin's effectiveness in repairing mitochondrial function and inhibiting senescence. The findings indicate that capsaicin delays mitochondrial dysfunction and therefore hinders cellular senescence by regulating the mitochondrial membrane protein Slc25a12 in the A7r5 cell line.
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Affiliation(s)
- Fangfang Dou
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China.
| | - Beiling Wu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China.
| | - Jiulin Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China.
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China.
| | - Zhihua Yu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China.
| | - Chuan Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200031, China.
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Bao J, Gao Z, Hu Y, Ye L, Wang L. Transient receptor potential vanilloid type 1: cardioprotective effects in diabetic models. Channels (Austin) 2023; 17:2281743. [PMID: 37983306 PMCID: PMC10761101 DOI: 10.1080/19336950.2023.2281743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023] Open
Abstract
Cardiovascular disease, especially heart failure (HF) is the leading cause of death in patients with diabetes. Individuals with diabetes are prone to a special type of cardiomyopathy called diabetic cardiomyopathy (DCM), which cannot be explained by heart diseases such as hypertension or coronary artery disease, and can contribute to HF. Unfortunately, the current treatment strategy for diabetes-related cardiovascular complications is mainly to control blood glucose levels; nonetheless, the improvement of cardiac structure and function is not ideal. The transient receptor potential cation channel subfamily V member 1 (TRPV1), a nonselective cation channel, has been shown to be universally expressed in the cardiovascular system. Increasing evidence has shown that the activation of TRPV1 channel has a potential protective influence on the cardiovascular system. Numerous studies show that activating TRPV1 channels can improve the occurrence and progression of diabetes-related complications, including cardiomyopathy; however, the specific mechanisms and effects are unclear. In this review, we summarize that TRPV1 channel activation plays a protective role in the heart of diabetic models from oxidation/nitrification stress, mitochondrial function, endothelial function, inflammation, and cardiac energy metabolism to inhibit the occurrence and progression of DCM. Therefore, TRPV1 may become a latent target for the prevention and treatment of diabetes-induced cardiovascular complications.
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Affiliation(s)
- Jiaqi Bao
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Zhicheng Gao
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yilan Hu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Lifang Ye
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Lihong Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
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Zong P, Li CX, Feng J, Cicchetti M, Yue L. TRP Channels in Stroke. Neurosci Bull 2023:10.1007/s12264-023-01151-5. [PMID: 37995056 DOI: 10.1007/s12264-023-01151-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/11/2023] [Indexed: 11/24/2023] Open
Abstract
Ischemic stroke is a devastating disease that affects millions of patients worldwide. Unfortunately, there are no effective medications for mitigating brain injury after ischemic stroke. TRP channels are evolutionally ancient biosensors that detect external stimuli as well as tissue or cellular injury. To date, many members of the TRP superfamily have been reported to contribute to ischemic brain injury, including the TRPC subfamily (1, 3, 4, 5, 6, 7), TRPV subfamily (1, 2, 3, 4) and TRPM subfamily (2, 4, 7). These TRP channels share structural similarities but have distinct channel functions and properties. Their activation during ischemic stroke can be beneficial, detrimental, or even both. In this review, we focus on discussing the interesting features of stroke-related TRP channels and summarizing the underlying cellular and molecular mechanisms responsible for their involvement in ischemic brain injury.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA.
- Institute for the Brain and Cognitive Sciences, University of Connecticut, 337 Mansfield Road, Unit 1272, Storrs, CT, 06269, USA.
| | - Cindy X Li
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
| | - Mara Cicchetti
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
- Department of Neuroscience, University of Pittsburgh, 4200 Fifth Ave, Pittsburgh, PA, 15260, USA
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA.
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6
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Hasegawa YU, Kuratsu JI. Goshuyuto Reduced the Monthly Intake of Anti-headache Drugs and Improved Pain Status in Patients with 20-Year History of Medication Overuse Headache in an Outpatient Setting. Kurume Med J 2023. [PMID: 37183017 DOI: 10.2739/kurumemedj.ms682019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The management of medication overuse headache (MOH) is sometimes challenging, particularly for patients with a long disease duration. We observed that patients who used goshuyuto, a traditional Japanese medicine, exhibited a favorable clinical course. Two women who had a history of MOH for over 20 years were treated using 5.0-7.5 g/day goshuyuto in an outpatient setting. The treatment reduced their use of habitual drugs, including triptan (33-55%) and non-steroidal anti-inflammatory drugs (75-82%), as well as the headache impact test score-6 (16-23%) over 24 weeks. As goshuyuto has a protective effect on chronic headache and is reported not to lead to MOH, it is a good candidate for the treatment of patients with MOH in an outpatient setting, even for those with an over 20-year history of MOH.
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Affiliation(s)
- Y U Hasegawa
- Department of Neurosurgery, Sakurajyuji Hospital
- Department of Pharmaceutical Science, School of Pharmacy at Fukuoka, International University of Health and Welfare
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Ovchinnikov AN, Deryugina AV, Paoli A. Royal Jelly Plus Coenzyme Q10 Supplementation Enhances High-Intensity Interval Exercise Performance via Alterations in Cardiac Autonomic Regulation and Blood Lactate Concentration in Runners. Front Nutr 2022; 9:893515. [PMID: 35811968 PMCID: PMC9263918 DOI: 10.3389/fnut.2022.893515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose This study aimed to examine whether oral royal jelly (RJ) and coenzyme Q10 (CoQ10) co-supplementation could improve high-intensity interval exercise (HIIE) performance in runners, reducing exercise-induced lactic acidosis and decreasing elevated sympathetic tone following exercise. Methods Thirty regional-level runners (age: 19 ± 1 years; height: 173 ± 2 cm; body mass: 68.9 ± 2 kg; body mass index: 23.1 ± 1 kg/m2) were randomly allocated to receive either 400 mg of RJ and 60 mg of CoQ10 (RJQ) or matching placebo (PLA) once daily for 10 days. Exercise performance expressed as time taken to complete HIIE was evaluated at baseline, and then reassessed at day 10 of intervention. HIIE protocol applied to the runners included three repetitions of 100 m distance at maximum possible speed interspersed with 45 s of recovery periods. Indices of heart rate variability and blood lactate concentration were also measured before and immediately after HIIE in each group. Results HIIE performance significantly improved in RJQ group (p = 0.005) compared to PLA group. Blood lactate levels and sympathetic influence on the heart were significantly lower both before and after the HIIE in athletes who received RJQ (p < 0.05) compared to PLA. Regression analysis showed that oral RJQ administration for 10 days was significantly associated with reductions in HIIE-induced increases in blood lactate concentration and enhanced cardiac parasympathetic modulation following exercise compared to PLA. Principal component analysis revealed that runners treated with RJQ are grouped by the first two principal components into a separate cluster compared to PLA. Correlation analysis demonstrated that the improvements in runners' HIIE performance were due in significant part to RJQ-induced reduction of increment in blood lactate levels in response to exercise in combination with a more rapid shift in autonomic activity toward increased parasympathetic control early at post-exercise. Conclusion These findings suggest that RJQ supplementation for 10 days is potentially effective for enhancing HIIE performance and alleviating adverse effects of increased intramuscular acidity and prolonged sympathetic dominance following intense exercise.
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Affiliation(s)
| | - Anna V. Deryugina
- Department of Physiology and Anatomy, Lobachevsky University, Nizhny Novgorod, Russia
| | - Antonio Paoli
- Department of Biomedical Sciences, University of Padua, Padua, Italy
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8
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The Effects of Acidosis on eNOS in the Systemic Vasculature: A Focus on Early Postnatal Ontogenesis. Int J Mol Sci 2022; 23:ijms23115987. [PMID: 35682667 PMCID: PMC9180972 DOI: 10.3390/ijms23115987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 01/27/2023] Open
Abstract
The activity of many vasomotor signaling pathways strongly depends on extracellular/intracellular pH. Nitric oxide (NO) is one of the most important vasodilators produced by the endothelium. In this review, we present evidence that in most vascular beds of mature mammalian organisms metabolic or respiratory acidosis increases functional endothelial NO-synthase (eNOS) activity, despite the observation that direct effects of low pH on eNOS enzymatic activity are inhibitory. This can be explained by the fact that acidosis increases the activity of signaling pathways that positively regulate eNOS activity. The role of NO in the regulation of vascular tone is greater in early postnatal ontogenesis compared to adulthood. Importantly, in early postnatal ontogenesis acidosis also augments functional eNOS activity and its contribution to the regulation of arterial contractility. Therefore, the effect of acidosis on total peripheral resistance in neonates may be stronger than in adults and can be one of the reasons for an undesirable decrease in blood pressure during neonatal asphyxia. The latter, however, should be proven in future studies.
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Yang Y, Wang Y, Zhang Z, Wang S, Li Z. WSF-CT-11, a Sesquiterpene Derivative, Activates AMP-Activated Protein Kinase with Anti-diabetic Effects in 3T3-L1 Adipocytes. ACS OMEGA 2021; 6:31272-31281. [PMID: 34841171 PMCID: PMC8613856 DOI: 10.1021/acsomega.1c05061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND AMP-activated protein kinase (AMPK) is a therapeutic target against type II diabetes (T2D). Synthetic sesquiterpene derivatives were investigated to identify novel AMPK activators as anti-diabetic drugs because the leading drugs like metformin and thiazolidinediones (TZDs) activate AMPK by inhibiting the synthesis of adenosine 5'-triphosphate and thus are associated with some side effects. RESULTS We identified WSF-CT-11 as an AMPK activator in HEK293T cells and found that WSF-CT-11 activates AMPK by the activation of transient receptor potential vanilloid type 1 (TRPV1), a Ca2+-permeable cation channel. The increased Ca2+ influx then activates phosphoinositide 3-kinase (PI3K), protein kinase B (PKB/Akt), and Ca2+/calmodulin-dependent protein kinase II (CaMKII), which in turn phosphorylates TRPV1 and facilitates the formation of a TRPV1/Akt/CaMKII/AMPK complex. This complex might be important for the regulation of AMPK activity. In 3T3-L1 adipocytes, WSF-CT-11-induced AMPK activation has three anti-diabetic effects. It promotes the assembly of high-molecular-weight adiponectin, which has stronger insulin-sensitizing activity than other multimers. It improves translocation of the glucose transporter type 4, increases glucose uptake, and induces the inhibitory phosphorylation of peroxisome proliferator-activated receptor γ and thus suppresses adipogenesis. CONCLUSION WSF-CT-11 is a novel AMPK activator and potential drug against T2D without the side effects of metformin and TZDs.
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Affiliation(s)
- Yang Yang
- MOE
Key Laboratory of Bioinoformatics, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yunyun Wang
- College
of Chemical Engineering, Nanjing Forestry
University, Jiangsu 210037, China
| | - Zhijie Zhang
- Institute
of Chinese Materia Medica, China Academy
of Chinese Medical Sciences, Beijing 100700, China
| | - Shifa Wang
- College
of Chemical Engineering, Nanjing Forestry
University, Jiangsu 210037, China
| | - Zhen Li
- MOE
Key Laboratory of Bioinoformatics, School of Life Sciences, Tsinghua University, Beijing 100084, China
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10
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Xie Q, Ma R, Li H, Wang J, Guo X, Chen H. Advancement in research on the role of the transient receptor potential vanilloid channel in cerebral ischemic injury (Review). Exp Ther Med 2021; 22:881. [PMID: 34194559 PMCID: PMC8237269 DOI: 10.3892/etm.2021.10313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 05/28/2021] [Indexed: 01/04/2023] Open
Abstract
Stroke is a common critical disease occurring in middle-aged and elderly individuals, and is characterized by high morbidity, lethality and mortality. As such, it is of great concern to medical professionals. The aim of the present review was to investigate the effects of transient receptor potential vanilloid (TRPV) subtypes during cerebral ischemia in ischemia-reperfusion animal models, oxygen glucose deprivation and in other administration cell models in vitro to explore new avenues for stroke research and clinical treatments. TRPV1, TRPV2 and TRPV4 employ different methodologies by which they confer protection against cerebral ischemic injury. TRPV1 and TRPV4 are likely related to the inhibition of inflammatory reactions, neurotoxicity and cell apoptosis, thus promoting nerve growth and regulation of intracellular calcium ions (Ca2+). The mechanisms of neuroprotection of TRPV1 are the JNK pathway, N-methyl-D-aspartate (NMDA) receptor and therapeutic hypothermia. The mechanisms of neuroprotection of TRPV4 are the PI3K/Akt pathways, NMDA receptor and p38 MAPK pathway, amongst others. The mechanisms by which TRPV2 confers its protective effects are predominantly connected with the regulation of nerve growth factor, MAPK and JNK pathways, as well as JNK-dependent pathways. Thus, TRPVs have the potential for improving outcomes associated with cerebral ischemic or reperfusion injuries. The protection conferred by TRPV1 and TRPV4 is closely related to cellular Ca2+ influx, while TRPV2 has a different target and mode of action, possibly due to its expression sites. However, in light of certain contradictory research conclusions, further experimentation is required to clarify the mechanisms and specific pathways by which TRPVs act to alleviate nerve injuries.
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Affiliation(s)
- Qian Xie
- School of Pharmacy and State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P.R. China
| | - Rong Ma
- School of Pharmacy and State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P.R. China
| | - Hongyan Li
- School of Pharmacy and State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P.R. China
| | - Jian Wang
- School of Pharmacy and State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P.R. China
| | - Xiaoqing Guo
- School of Pharmacy and State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P.R. China
| | - Hai Chen
- School of Pharmacy and State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P.R. China
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11
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Abstract
Transient receptor potential vanilloid subfamily member 1 (TRPV1) is a nonselective cation channel, that is mainly distributed in sensory nerve endings and can release a variety of neurotransmitters after activation. Early studies showed that it mainly conducts pain sensation, but research has demonstrated that it also plays an important role in cardiovascular diseases. Notably, in atherosclerosis, the activation of TRPV1 can regulate lipid metabolism, reduce foam cell formation, protect endothelial cells, inhibit smooth muscle cell proliferation and inhibit inflammation and oxidation. In this review, the role of the TRPV1 channel in atherosclerosis was discussed to provide new ideas for the prevention and treatment of atherosclerotic diseases.
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Affiliation(s)
- Chenyang Zhang
- Department of Medicine, Qingdao University, Qingdao, China.,Zhejiang Provincial People's Hospital, Qingdao University, Hangzhou, China
| | - Lifang Ye
- Zhejiang Provincial People's Hospital, Qingdao University, Hangzhou, China
| | - Qinggang Zhang
- Zhejiang Provincial People's Hospital, Qingdao University, Hangzhou, China
| | - Fei Wu
- Zhejiang Provincial People's Hospital, Qingdao University, Hangzhou, China
| | - Lihong Wang
- Zhejiang Provincial People's Hospital, Qingdao University, Hangzhou, China
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12
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Negri S, Faris P, Rosti V, Antognazza MR, Lodola F, Moccia F. Endothelial TRPV1 as an Emerging Molecular Target to Promote Therapeutic Angiogenesis. Cells 2020; 9:cells9061341. [PMID: 32471282 PMCID: PMC7349285 DOI: 10.3390/cells9061341] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/26/2020] [Accepted: 05/26/2020] [Indexed: 02/06/2023] Open
Abstract
Therapeutic angiogenesis represents an emerging strategy to treat ischemic diseases by stimulating blood vessel growth to rescue local blood perfusion. Therefore, injured microvasculature may be repaired by stimulating resident endothelial cells or circulating endothelial colony forming cells (ECFCs) or by autologous cell-based therapy. Endothelial Ca2+ signals represent a crucial player in angiogenesis and vasculogenesis; indeed, several angiogenic stimuli induce neovessel formation through an increase in intracellular Ca2+ concentration. Several members of the Transient Receptor Potential (TRP) channel superfamily are expressed and mediate Ca2+-dependent functions in vascular endothelial cells and in ECFCs, the only known truly endothelial precursor. TRP Vanilloid 1 (TRPV1), a polymodal cation channel, is emerging as an important player in endothelial cell migration, proliferation, and tubulogenesis, through the integration of several chemical stimuli. Herein, we first summarize TRPV1 structure and gating mechanisms. Next, we illustrate the physiological roles of TRPV1 in vascular endothelium, focusing our attention on how endothelial TRPV1 promotes angiogenesis. In particular, we describe a recent strategy to stimulate TRPV1-mediated pro-angiogenic activity in ECFCs, in the presence of a photosensitive conjugated polymer. Taken together, these observations suggest that TRPV1 represents a useful target in the treatment of ischemic diseases.
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Affiliation(s)
- Sharon Negri
- Laboratory of General Physiology, Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (S.N.); (P.F.)
| | - Pawan Faris
- Laboratory of General Physiology, Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (S.N.); (P.F.)
| | - Vittorio Rosti
- Center for the Study of Myelofibrosis, Laboratory of Biochemistry, Biotechnology and Advanced Diagnosis, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy;
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy; (M.R.A.); (F.L.)
| | - Francesco Lodola
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy; (M.R.A.); (F.L.)
| | - Francesco Moccia
- Laboratory of General Physiology, Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (S.N.); (P.F.)
- Correspondence:
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13
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Negri S, Faris P, Berra-Romani R, Guerra G, Moccia F. Endothelial Transient Receptor Potential Channels and Vascular Remodeling: Extracellular Ca 2 + Entry for Angiogenesis, Arteriogenesis and Vasculogenesis. Front Physiol 2020; 10:1618. [PMID: 32038296 PMCID: PMC6985578 DOI: 10.3389/fphys.2019.01618] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 12/23/2019] [Indexed: 12/13/2022] Open
Abstract
Vasculogenesis, angiogenesis and arteriogenesis represent three crucial mechanisms involved in the formation and maintenance of the vascular network in embryonal and post-natal life. It has long been known that endothelial Ca2+ signals are key players in vascular remodeling; indeed, multiple pro-angiogenic factors, including vascular endothelial growth factor, regulate endothelial cell fate through an increase in intracellular Ca2+ concentration. Transient Receptor Potential (TRP) channel consist in a superfamily of non-selective cation channels that are widely expressed within vascular endothelial cells. In addition, TRP channels are present in the two main endothelial progenitor cell (EPC) populations, i.e., myeloid angiogenic cells (MACs) and endothelial colony forming cells (ECFCs). TRP channels are polymodal channels that can assemble in homo- and heteromeric complexes and may be sensitive to both pro-angiogenic cues and subtle changes in local microenvironment. These features render TRP channels the most versatile Ca2+ entry pathway in vascular endothelial cells and in EPCs. Herein, we describe how endothelial TRP channels stimulate vascular remodeling by promoting angiogenesis, arteriogenesis and vasculogenesis through the integration of multiple environmental, e.g., extracellular growth factors and chemokines, and intracellular, e.g., reactive oxygen species, a decrease in Mg2+ levels, or hypercholesterolemia, stimuli. In addition, we illustrate how endothelial TRP channels induce neovascularization in response to synthetic agonists and small molecule drugs. We focus the attention on TRPC1, TRPC3, TRPC4, TRPC5, TRPC6, TRPV1, TRPV4, TRPM2, TRPM4, TRPM7, TRPA1, that were shown to be involved in angiogenesis, arteriogenesis and vasculogenesis. Finally, we discuss the role of endothelial TRP channels in aberrant tumor vascularization by focusing on TRPC1, TRPC3, TRPV2, TRPV4, TRPM8, and TRPA1. These observations suggest that endothelial TRP channels represent potential therapeutic targets in multiple disorders featured by abnormal vascularization, including cancer, ischemic disorders, retinal degeneration and neurodegeneration.
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Affiliation(s)
- Sharon Negri
- Laboratory of General Physiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia, Italy
| | - Pawan Faris
- Department of Biology, College of Science, Salahaddin University-Erbil, Erbil, Iraq
| | - Roberto Berra-Romani
- Department of Biomedicine, School of Medicine, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Germano Guerra
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Campobasso, Italy
| | - Francesco Moccia
- Laboratory of General Physiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia, Italy
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14
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Li M, Zhang CS, Zong Y, Feng JW, Ma T, Hu M, Lin Z, Li X, Xie C, Wu Y, Jiang D, Li Y, Zhang C, Tian X, Wang W, Yang Y, Chen J, Cui J, Wu YQ, Chen X, Liu QF, Wu J, Lin SY, Ye Z, Liu Y, Piao HL, Yu L, Zhou Z, Xie XS, Hardie DG, Lin SC. Transient Receptor Potential V Channels Are Essential for Glucose Sensing by Aldolase and AMPK. Cell Metab 2019; 30:508-524.e12. [PMID: 31204282 PMCID: PMC6720459 DOI: 10.1016/j.cmet.2019.05.018] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/03/2019] [Accepted: 05/21/2019] [Indexed: 02/06/2023]
Abstract
Fructose-1,6-bisphosphate (FBP) aldolase links sensing of declining glucose availability to AMPK activation via the lysosomal pathway. However, how aldolase transmits lack of occupancy by FBP to AMPK activation remains unclear. Here, we show that FBP-unoccupied aldolase interacts with and inhibits endoplasmic reticulum (ER)-localized transient receptor potential channel subfamily V, inhibiting calcium release in low glucose. The decrease of calcium at contact sites between ER and lysosome renders the inhibited TRPV accessible to bind the lysosomal v-ATPase that then recruits AXIN:LKB1 to activate AMPK independently of AMP. Genetic depletion of TRPVs blocks glucose starvation-induced AMPK activation in cells and liver of mice, and in nematodes, indicative of physical requirement of TRPVs. Pharmacological inhibition of TRPVs activates AMPK and elevates NAD+ levels in aged muscles, rejuvenating the animals' running capacity. Our study elucidates that TRPVs relay the FBP-free status of aldolase to the reconfiguration of v-ATPase, leading to AMPK activation in low glucose.
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Affiliation(s)
- Mengqi Li
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Chen-Song Zhang
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Yue Zong
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Jin-Wei Feng
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Teng Ma
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Meiqin Hu
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, PKU-IDG/McGovern Institute for Brain Research, Peking University, 100871 Beijing, China
| | - Zhizhong Lin
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Xiaotong Li
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Changchuan Xie
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Yaying Wu
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Dong Jiang
- State Key Laboratory of Membrane Biology, School of Life Sciences, Tsinghua University, 100084 Beijing, China
| | - Ying Li
- State Key Laboratory of Membrane Biology, School of Life Sciences, Tsinghua University, 100084 Beijing, China
| | - Cixiong Zhang
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Xiao Tian
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Wen Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, China
| | - Yanyan Yang
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Peking University, 100871 Beijing, China
| | - Jie Chen
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Peking University, 100871 Beijing, China
| | - Jiwen Cui
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Yu-Qing Wu
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Xin Chen
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Qing-Feng Liu
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Jianfeng Wu
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Shu-Yong Lin
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Zhiyun Ye
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China
| | - Ying Liu
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Peking University, 100871 Beijing, China
| | - Hai-Long Piao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, China
| | - Li Yu
- State Key Laboratory of Membrane Biology, School of Life Sciences, Tsinghua University, 100084 Beijing, China
| | - Zhuan Zhou
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, PKU-IDG/McGovern Institute for Brain Research, Peking University, 100871 Beijing, China
| | - Xiao-Song Xie
- McDermott Center of Human Growth and Development MC8591, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - D Grahame Hardie
- Division of Cell Signalling and Immunology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland
| | - Sheng-Cai Lin
- State Key Laboratory for Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, 361102 Fujian, China.
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15
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Lien CC, Chen CH, Lee YM, Guo BC, Cheng LC, Pan CC, Shyue SK, Lee TS. The phosphatase activity of soluble epoxide hydrolase regulates ATP-binding cassette transporter-A1-dependent cholesterol efflux. J Cell Mol Med 2019; 23:6611-6621. [PMID: 31436906 PMCID: PMC6787517 DOI: 10.1111/jcmm.14519] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/24/2019] [Accepted: 06/17/2019] [Indexed: 12/17/2022] Open
Abstract
The contribution of soluble epoxide hydrolase (sEH) to atherosclerosis has been well defined. However, less is understood about the role of sEH and its underlying mechanism in the cholesterol metabolism of macrophages. The expression of sEH protein was increased in atherosclerotic aortas of apolipoprotein E‐deficient mice, primarily in macrophage foam cells. Oxidized low‐density lipoprotein (oxLDL) increased sEH expression in macrophages. Genetic deletion of sEH (sEH−/−) in macrophages markedly exacerbated oxLDL‐induced lipid accumulation and decreased the expression of ATP‐binding cassette transporters‐A1 (ABCA1) and apolipoprotein AI‐dependent cholesterol efflux following oxLDL treatment. The down‐regulation of ABCA1 in sEH−/− macrophages was due to an increase in the turnover rate of ABCA1 protein but not in mRNA transcription. Inhibition of phosphatase activity, but not hydrolase activity, of sEH decreased ABCA1 expression and cholesterol efflux following oxLDL challenge, which resulted in increased cholesterol accumulation. Additionally, oxLDL increased the phosphatase activity, promoted the sEH‐ABCA1 complex formation and decreased the phosphorylated level of ABCA1 at threonine residues. Overexpression of phosphatase domain of sEH abrogated the oxLDL‐induced ABCA1 phosphorylation and further increased ABCA1 expression and cholesterol efflux, leading to the attenuation of oxLDL‐induced cholesterol accumulation. Our findings suggest that the phosphatase domain of sEH plays a crucial role in the cholesterol metabolism of macrophages.
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Affiliation(s)
- Chih-Chan Lien
- Graduate Institute and Department of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chia-Hui Chen
- Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yeng-Ming Lee
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.,Graduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan
| | - Bei-Chia Guo
- Graduate Institute and Department of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Li-Ching Cheng
- Division of Basic Medical Sciences, Department of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Ching-Chien Pan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Song-Kun Shyue
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Tzong-Shyuan Lee
- Graduate Institute and Department of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
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16
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Li Y, Sun R, Zou J, Ying Y, Luo Z. Dual Roles of the AMP-Activated Protein Kinase Pathway in Angiogenesis. Cells 2019; 8:E752. [PMID: 31331111 PMCID: PMC6678403 DOI: 10.3390/cells8070752] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/11/2019] [Accepted: 07/14/2019] [Indexed: 12/21/2022] Open
Abstract
Angiogenesis plays important roles in development, stress response, wound healing, tumorigenesis and cancer progression, diabetic retinopathy, and age-related macular degeneration. It is a complex event engaging many signaling pathways including vascular endothelial growth factor (VEGF), Notch, transforming growth factor-beta/bone morphogenetic proteins (TGF-β/BMPs), and other cytokines and growth factors. Almost all of them eventually funnel to two crucial molecules, VEGF and hypoxia-inducing factor-1 alpha (HIF-1α) whose expressions could change under both physiological and pathological conditions. Hypoxic conditions stabilize HIF-1α, while it is upregulated by many oncogenic factors under normaxia. HIF-1α is a critical transcription activator for VEGF. Recent studies have shown that intracellular metabolic state participates in regulation of sprouting angiogenesis, which may involve AMP-activated protein kinase (AMPK). Indeed, AMPK has been shown to exert both positive and negative effects on angiogenesis. On the one hand, activation of AMPK mediates stress responses to facilitate autophagy which stabilizes HIF-1α, leading to increased expression of VEGF. On the other hand, AMPK could attenuate angiogenesis induced by tumor-promoting and pro-metastatic factors, such as the phosphoinositide 3-kinase /protein kinase B (Akt)/mammalian target of rapamycin (PI3K/Akt/mTOR), hepatic growth factor (HGF), and TGF-β/BMP signaling pathways. Thus, this review will summarize research progresses on these two opposite effects and discuss the mechanisms behind the discrepant findings.
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Affiliation(s)
- Yuanjun Li
- Jiangxi Provincial Key Laboratory of Tumor Pathogens and Molecular Pathology, Department of Pathophysiology, School of Basic Medical Sciences, Nanchang University Jiangxi Medical College, Nanchang, Jiangxi, Post Code 330006, China
| | - Ruipu Sun
- Queen Mary School, Nanchang University Jiangxi Medical College, Nanchang, Jiangxi 30006, China
| | - Junrong Zou
- Jiangxi Provincial Key Laboratory of Tumor Pathogens and Molecular Pathology, Department of Pathophysiology, School of Basic Medical Sciences, Nanchang University Jiangxi Medical College, Nanchang, Jiangxi, Post Code 330006, China
| | - Ying Ying
- Jiangxi Provincial Key Laboratory of Tumor Pathogens and Molecular Pathology, Department of Pathophysiology, School of Basic Medical Sciences, Nanchang University Jiangxi Medical College, Nanchang, Jiangxi, Post Code 330006, China
| | - Zhijun Luo
- Jiangxi Provincial Key Laboratory of Tumor Pathogens and Molecular Pathology, Department of Pathophysiology, School of Basic Medical Sciences, Nanchang University Jiangxi Medical College, Nanchang, Jiangxi, Post Code 330006, China.
- Queen Mary School, Nanchang University Jiangxi Medical College, Nanchang, Jiangxi 30006, China.
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17
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Yao E, Zhang G, Huang J, Yang X, Peng L, Huang X, Luo X, Ren J, Huang R, Yang L, Zhou Y, Zhuo R, Zhao Y, Jin X. Immunomodulatory effect of oleoylethanolamide in dendritic cells via TRPV1/AMPK activation. J Cell Physiol 2019; 234:18392-18407. [PMID: 30895621 DOI: 10.1002/jcp.28474] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/15/2019] [Accepted: 02/19/2019] [Indexed: 12/26/2022]
Abstract
Oleoylethanolamide (OEA) is an endogenous lipid mediator involved in the control of feeding, body weight, and energy metabolism. However, whether OEA modulates maturation of dendritic cells (DCs) has never been addressed. Hence, we evaluated the effect of OEA on DCs maturation in bone marrow-derived DCs (BMDCs) in four aspects: (a) Cell surface markers were determined using flow cytometric analysis; (b) cell mobile ability was testified with the transwell assay; (c) stimulation of T cells proliferation was performed in a coculture system; and (d) cytokine production was measured using polymerase chain reaction (PCR). The result showed that, in mature BMDCs induced by lipopolysaccharides (LPS), the OEA treatment decreased expressions of cell surface markers, reduced cell migration, diminished the proliferation of cocultured T cells, and regulated cytokine production of BMDCs, indicating the modulatory effect of OEA on DCs maturation. Furthermore, to explore the underlying mechanism of the immunomodulatory effect of OEA, we used antagonists of transient receptor potential vanilloid-1 (TRPV1) and AMP-activated protein kinase (AMPK), determined the protein expressions of TRPV1/AMPK and Toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB) using western blot, and measured the intracellular calcium concentration using calcium imaging. The result illustrated that OEA downregulated TLR4/NF-κB, the classical pathway leading to DCs maturation induced by LPS, through the activation of TRPV1 and AMPK. Collectively, the present study suggests that OEA suppresses DCs maturation through the activation of TRPV1/AMPK. These findings increase our understanding of this endogenous lipid OEA.
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Affiliation(s)
- Enhui Yao
- Medical College, Xiamen University, Xiamen, China.,Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Guixiang Zhang
- Medical College, Xiamen University, Xiamen, China.,Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jinhua Huang
- Medical College, Xiamen University, Xiamen, China.,Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiazhen Yang
- Medical College, Xiamen University, Xiamen, China.,Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Lu Peng
- Medical College, Xiamen University, Xiamen, China
| | - Xuefeng Huang
- Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Xiaoxin Luo
- Medical College, Xiamen University, Xiamen, China
| | - Jie Ren
- Medical College, Xiamen University, Xiamen, China
| | - Rui Huang
- Medical College, Xiamen University, Xiamen, China
| | - Lichao Yang
- Medical College, Xiamen University, Xiamen, China
| | - Yu Zhou
- Medical College, Xiamen University, Xiamen, China
| | - Rengong Zhuo
- Medical College, Xiamen University, Xiamen, China
| | - Yun Zhao
- Medical College, Xiamen University, Xiamen, China
| | - Xin Jin
- Medical College, Xiamen University, Xiamen, China
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18
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Moriuchi M, Nakano Y, Tsurekawa Y, Piruzyan M, Matsuyama S, Nohara H, Suico MA, Shuto T, Kai H. Taurine Inhibits TRPV-Dependent Activity to Overcome Oxidative Stress in Caenorhabditis elegans. Biol Pharm Bull 2018; 41:1672-1677. [DOI: 10.1248/bpb.b18-00370] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Masataka Moriuchi
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Program for Leading Graduate School of “HIGO (Health Life Science: Interdisciplinary and Global Oriented) Program,” Kumamoto University
| | - Yoshio Nakano
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Program for Leading Graduate School of “HIGO (Health Life Science: Interdisciplinary and Global Oriented) Program,” Kumamoto University
| | - Yu Tsurekawa
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Program for Leading Graduate School of “HIGO (Health Life Science: Interdisciplinary and Global Oriented) Program,” Kumamoto University
| | - Mariam Piruzyan
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Program for Leading Graduate School of “HIGO (Health Life Science: Interdisciplinary and Global Oriented) Program,” Kumamoto University
| | - Shingo Matsuyama
- Laboratory of Applied Pharmacology, Faculty of Pharmaceutical Sciences, Tokyo University of Sciences
| | - Hirofumi Nohara
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Program for Leading Graduate School of “HIGO (Health Life Science: Interdisciplinary and Global Oriented) Program,” Kumamoto University
| | - Mary Ann Suico
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Tsuyoshi Shuto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Hirofumi Kai
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
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19
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Zhang Y, Li M, Li X, Zhang T, Qin M, Ren L. Isoquinoline Alkaloids and Indole Alkaloids Attenuate Aortic Atherosclerosis in Apolipoprotein E Deficient Mice: A Systematic Review and Meta-Analysis. Front Pharmacol 2018; 9:602. [PMID: 29922166 PMCID: PMC5996168 DOI: 10.3389/fphar.2018.00602] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 05/21/2018] [Indexed: 12/19/2022] Open
Abstract
Background: Several studies have attempted to relate the bioactive alkaloid with atherosclerotic cardiovascular diseases prevention in animal models, providing inconsistent results. Moreover, the direct anti-atherosclerotic effects of alkaloid have hardly been studied in patients. Therefore, the aim of this systematic review was to assess the reported effects of alkaloids on aortic atherosclerosis in ApoE−/− mouse models. Methods: Pubmed and Embase were searched to identify studies which estimated the effect of isolated alkaloids on atherosclerosis in apolipoprotein E deficient mice. Study quality was assessed using SYRCLE's risk of bias tool. We conducted a meta-analysis across 14 studies using a random-effect model to determine the overall effect of the alkaloids, and performed subgroup analyses to compare the effects of the isoquinolone alkaloids and indole alkaloids. Results: The quality of the included studies was low in the majority of included studies. We clarified that alkaloid administration was significantly associated with reduced aortic atherosclerotic lesion area (SMD −3.19, 95% CI −3.88, −2.51). It is important to remark that the experimental characteristics of studies were quite diverse, and the methodological variability could also contribute to heterogeneity. Subgroup analyses suggested that the isoquinoline alkaloids (SMD −4.19, 95% CI −5.18, −3.20), and the indole alkaloids (SMD −2.73, 95% CI −3.56, −1.90) obviously decreased atherosclerotic burden. Conclusion: Isoquinoline alkaloids and indole alkaloids appear to have a direct anti-atherosclerotic effect in ApoE−/− mice. Besides the limitations of animal modal studies, this systematic review could provide an important reference for future preclinical animal trials of good quality and clinical development.
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Affiliation(s)
- Yibing Zhang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Jilin University, Changchun, China.,Department of Ophthalmology, First Hospital of Jilin University, Changchun, China
| | - Min Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Xiangjun Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Tong Zhang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Meng Qin
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Liqun Ren
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Jilin University, Changchun, China
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20
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Wang Y, Cui L, Xu H, Liu S, Zhu F, Yan F, Shen S, Zhu M. TRPV1 agonism inhibits endothelial cell inflammation via activation of eNOS/NO pathway. Atherosclerosis 2017; 260:13-19. [DOI: 10.1016/j.atherosclerosis.2017.03.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 03/05/2017] [Accepted: 03/08/2017] [Indexed: 12/16/2022]
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21
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Lee CM, Gu JA, Rau TG, Wang C, Yen CH, Huang SH, Lin FY, Lin CM, Huang ST. Synthetic Fluororutaecarpine Inhibits Inflammatory Stimuli and Activates Endothelial Transient Receptor Potential Vanilloid-Type 1. Molecules 2017; 22:molecules22040656. [PMID: 28422079 PMCID: PMC6153741 DOI: 10.3390/molecules22040656] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 04/14/2017] [Accepted: 04/18/2017] [Indexed: 02/07/2023] Open
Abstract
The natural product, rutaecarpine (RUT), is the main effective component of Evodia rutaecarpa which is a widely used traditional Chinese medicine. It has vasodilation, anticoagulation, and anti-inflammatory activities. However, further therapeutic applications are limited by its cytotoxicity. Thus, a derivative of RUT, 10-fluoro-2-methoxyrutaecarpine (F-RUT), was designed and synthesized that showed no cytotoxicity toward RAW264.7 macrophages at 20 μM. In an anti-inflammation experiment, it inhibited the production of nitric oxide (NO) and tumor necrosis factor (TNF)-α in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages; cyclooxygenase (COX)-2 and inducible NO synthase (iNOS) induced by LPS were also downregulated. After 24 h of treatment, F-RUT significantly inhibited cell migration and invasion of ovarian A2780 cells. Furthermore, F-RUT promoted expressions of transient receptor potential vanilloid type 1 (TRPV1) and endothelial (e)NOS in human aortic endothelial cells, and predominantly reduced the inflammation in ovalbumin/alum-challenged mice. These results suggest that the novel synthetic F-RUT exerts activities against inflammation and vasodilation, while displaying less toxicity than its lead compound.
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Affiliation(s)
- Chi-Ming Lee
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Jiun-An Gu
- Institute of Chemical Engineering, College of Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
| | - Tin-Gan Rau
- Institute of Chemical Engineering, College of Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
| | - Chi Wang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Chiao-Han Yen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Shih-Hao Huang
- Department of Food and Beverage Management, Taipei College of Maritime Technology, Taipei 11174, Taiwan.
| | - Feng-Yen Lin
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Chun-Mao Lin
- Department of Biochemistry, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Sheng-Tung Huang
- Institute of Biochemical and Biomedical Engineering, College of Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
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22
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Yu YB, Su KH, Kou YR, Guo BC, Lee KI, Wei J, Lee TS. Role of transient receptor potential vanilloid 1 in regulating erythropoietin-induced activation of endothelial nitric oxide synthase. Acta Physiol (Oxf) 2017; 219:465-477. [PMID: 27232578 DOI: 10.1111/apha.12723] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 05/25/2016] [Accepted: 05/25/2016] [Indexed: 01/02/2023]
Abstract
AIMS Erythropoietin (EPO), the key hormone involved in erythropoiesis, beneficially affects endothelial cells (ECs), but the detailed mechanisms are yet to be completely understood. In this study, we investigated the role of transient receptor potential vanilloid type 1 (TRPV1), a ligand-gated non-selective calcium (Ca2+ ) channel, in EPO-mediated endothelial nitric oxide synthase (eNOS) activation and angiogenesis. METHODS AND RESULTS In ECs, EPO time dependently increased intracellular levels of calcium; this increase was abrogated by the Ca2+ chelators and pharmacological inhibitors of TRPV1 in bovine aortic ECs (BAECs) and TRPV1-transfected HEK293 cells. In addition, EPO-induced nitrite oxide (NO) production, phosphorylation of eNOS, Akt and AMP-activated protein kinase (AMPK) and the formation of TRPV1-Akt-AMPK-eNOS complex as well as tube formation were diminished by the pharmacological inhibition of TRPV1 in BAECs. Moreover, EPO time dependently induced the phosphorylation of phospholipase C-γ1 (PLC-γ1). Inhibition of PLC-γ1 activity blunted the EPO-induced Ca2+ influx, eNOS phosphorylation, TRPV1-eNOS complex formation and NO production. The phosphorylated level of eNOS increased in the aortas of EPO-treated wild-type (WT) mice or EPO-transgenic (Tg) mice but not in those of EPO-treated TRPV1-deficient (TRPV1-/- ) mice or EPO-Tg/TRPV1-/- mice. Matrigel plug assay showed that EPO-induced angiogenesis was abrogated in TRPV1 antagonist capsazepine-treated WT mice and TRPV1-/- mice. CONCLUSION These findings indicate the EPO-induced Ca2+ influx via the activation of the PLC-γ1 signalling pathway, which leads to TRPV1 activation and consequently increases the association of the TRPV1-Akt-AMPK-eNOS complex, eNOS activation, NO production and angiogenesis.
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Affiliation(s)
- Y.-B. Yu
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
- Division of Hematology; Department of Medicine; Taipei Veterans General Hospital; Taipei Taiwan
| | - K.-H. Su
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
- The Jackson Laboratory; Bar Harbor ME USA
| | - Y. R. Kou
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
| | - B.-C. Guo
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
| | - K.-I. Lee
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
| | - J. Wei
- Heart Center; Cheng-Hsin General Hospital; Taipei Taiwan
| | - T.-S. Lee
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
- Genome Research Center; National Yang-Ming University; Taipei Taiwan
- Aging and Health Research Center; National Yang-Ming University; Taipei Taiwan
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DelloStritto DJ, Sinharoy P, Connell PJ, Fahmy JN, Cappelli HC, Thodeti CK, Geldenhuys WJ, Damron DS, Bratz IN. 4-Hydroxynonenal dependent alteration of TRPV1-mediated coronary microvascular signaling. Free Radic Biol Med 2016; 101:10-19. [PMID: 27682362 PMCID: PMC5490661 DOI: 10.1016/j.freeradbiomed.2016.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 09/14/2016] [Accepted: 09/23/2016] [Indexed: 01/11/2023]
Abstract
We demonstrated previously that TRPV1-dependent regulation of coronary blood flow (CBF) is disrupted in diabetes. Further, we have shown that endothelial TRPV1 is differentially regulated, ultimately leading to the inactivation of TRPV1, when exposed to a prolonged pathophysiological oxidative environment. This environment has been shown to increase lipid peroxidation byproducts including 4-Hydroxynonenal (4-HNE). 4-HNE is notorious for producing protein post-translation modification (PTM) via reactions with the amino acids: cysteine, histidine and lysine. Thus, we sought to determine if 4-HNE mediated post-translational modification of TRPV1 could account for dysfunctional TRPV1-mediated signaling observed in diabetes. Our initial studies demonstrate 4-HNE infusion decreases TRPV1-dependent coronary blood flow in C57BKS/J (WT) mice. Further, we found that TRPV1-dependent vasorelaxation was suppressed after 4-HNE treatment in isolated mouse coronary arterioles. Moreover, we demonstrate 4-HNE significantly inhibited TRPV1 currents and Ca2+ entry utilizing patch-clamp electrophysiology and calcium imaging respectively. Using molecular modeling, we identified potential pore cysteines residues that, when mutated, could restore TRPV1 function in the presence of 4-HNE. Specifically, complete rescue of capsaicin-mediated activation of TRPV1 was obtained following mutation of pore Cysteine 621. Finally, His tag pull-down of TRPV1 in HEK cells treated with 4-HNE demonstrated a significant increase in 4-HNE binding to TRPV1, which was reduced in the TRPV1 C621G mutant. Taken together these data suggest that 4-HNE decreases TRPV1-mediated responses, at both the in vivo and in vitro levels and this dysfunction can be rescued via mutation of the pore Cysteine 621. Our results show the first evidence of an amino acid specific modification of TRPV1 by 4-HNE suggesting this 4-HNE-dependent modification of TRPV1 may contribute to microvascular dysfunction and tissue perfusion deficits characteristic of diabetes.
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Affiliation(s)
- Daniel J DelloStritto
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4209 St. Rt. 44, Rootstown, OH 44272, USA.
| | - Pritam Sinharoy
- Department of Biological Sciences, Kent State University, 256 Cunningham Hall, Kent, OH 44242, USA.
| | - Patrick J Connell
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4209 St. Rt. 44, Rootstown, OH 44272, USA.
| | - Joseph N Fahmy
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4209 St. Rt. 44, Rootstown, OH 44272, USA.
| | - Holly C Cappelli
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4209 St. Rt. 44, Rootstown, OH 44272, USA; Department of Biomedical Sciences, Kent State University, 256 Cunningham Hall, Kent, OH 44242, USA.
| | - Charles K Thodeti
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4209 St. Rt. 44, Rootstown, OH 44272, USA.
| | - Werner J Geldenhuys
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, P.O. Box 9500, Morgantown, WV 26506, USA.
| | - Derek S Damron
- Department of Biological Sciences, Kent State University, 256 Cunningham Hall, Kent, OH 44242, USA.
| | - Ian N Bratz
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4209 St. Rt. 44, Rootstown, OH 44272, USA.
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Hong Z, Tian Y, Qi M, Li Y, Du Y, Chen L, Liu W, Chen L. Transient Receptor Potential Vanilloid 4 Inhibits γ-Aminobutyric Acid-Activated Current in Hippocampal Pyramidal Neurons. Front Mol Neurosci 2016; 9:77. [PMID: 27616980 PMCID: PMC4999446 DOI: 10.3389/fnmol.2016.00077] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/10/2016] [Indexed: 12/26/2022] Open
Abstract
The balance between excitatory and inhibitory neurotransmitter systems is crucial for the modulation of neuronal excitability in the central nervous system (CNS). The activation of transient receptor potential vanilloid 4 (TRPV4) is reported to enhance the response of hippocampal glutamate receptors, but whether the inhibitory neurotransmitter system can be regulated by TRPV4 remains unknown. γ-aminobutyric acid (GABA) is the major inhibitory neurotransmitter in the CNS. Here, we show that application of transient receptor potential vanilloid 4 (TRPV4) synthetic (GSK1016790A or 4α-PDD) or endogenous agonist (5,6-EET) inhibited GABA-activated current (IGABA) in hippocampal CA1 pyramidal neurons, which was blocked by specific antagonists of TRPV4 and of GABAA receptors. GSK1016790A increased the phosphorylated AMP-activated protein kinase (p-AMPK) and decreased the phosphorylated protein kinase B (p-Akt) protein levels, which was attenuated by removing extracellular calcium or by a calcium/calmodulin-dependent protein kinase kinase-β antagonist. GSK1016790A-induced decrease of p-Akt protein level was sensitive to an AMPK antagonist. GSK1016790A-inhibited IGABA was blocked by an AMPK antagonist or a phosphatidyl inositol 3 kinase (PI3K) agonist. GSK1016790A-induced inhibition of IGABA was also significantly attenuated by a protein kinase C (PKC) antagonist but was unaffected by protein kinase A or calcium/calmodulin-dependent protein kinase II antagonist. We conclude that activation of TRPV4 inhibits GABAA receptor, which may be mediated by activation of AMPK and subsequent down-regulation of PI3K/Akt signaling and activation of PKC signaling. Inhibition of GABAA receptors may account for the neuronal hyperexcitability caused by TRPV4 activation.
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Affiliation(s)
- Zhiwen Hong
- Department of Physiology, Nanjing Medical University Nanjing, China
| | - Yujing Tian
- Department of Physiology, Nanjing Medical University Nanjing, China
| | - Mengwen Qi
- Department of Physiology, Nanjing Medical University Nanjing, China
| | - Yingchun Li
- Department of Physiology, Nanjing Medical University Nanjing, China
| | - Yimei Du
- Research Center of Ion Channelopathy, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, China
| | - Lei Chen
- Department of Physiology, Nanjing Medical University Nanjing, China
| | - Wentao Liu
- Department of Pharmacology, Nanjing Medical University Nanjing, China
| | - Ling Chen
- Department of Physiology, Nanjing Medical University Nanjing, China
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25
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Wang Q, Zhang Y, Li D, Zhang Y, Tang B, Li G, Yang Y, Yang D. Transgenic overexpression of transient receptor potential vanilloid subtype 1 attenuates isoproterenol-induced myocardial fibrosis in mice. Int J Mol Med 2016; 38:601-9. [PMID: 27314441 DOI: 10.3892/ijmm.2016.2648] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 06/08/2016] [Indexed: 11/06/2022] Open
Abstract
Transient receptor potential vanilloid subtype 1 (TRPV1) is a non-selective cation channel with high permeability to Ca2+. Intracellular Ca2+ signaling is an essential regulator of endothelial nitric oxide (NO) synthase (eNOS) that plays a beneficial role in myocardial fibrosis. The aim of the present study was to determine the role of TRPV1 in isoproterenol-induced myocardial fibrosis. Transgenic mice overexpressing TRPV1 were generated on a C57BL/6J genetic background. An animal model of myocardial fibrosis was created by subcutaneously injecting the mice with isoproterenol. We found that the wild-type mice exhibited a significant increase in heart/body weight ratio, left ventricle/body weight ratio, left ventricular end-diastolic pressure (LVEDP), the cardiac fibrotic lesion area and collagen content, as well as a marked decrease in eNOS phosphorylation and NO/cyclic guanosine monophosphate (cGMP) levels at 2 weeks after the administration of isoproterenol (all p<0.01). However, these changes were significantly attenuated in the TRPV1 transgenic mice (p<0.05 or p<0.01). Moreover, the beneficial effects on myocardial fibrosis exerted by the overexpression of TRPV1 were attenuated by the administration of the eNOS inhibitor, Nω-nitro-L-arginine methyl ester (L-NAME) (all p<0.05). Similar anti-fibrotic effects were observed in in vitro experiments with primary cultured cardiac fibroblasts. The findings of our study suggest that TRPV1 overexpression attenuates isoproterenol‑induced myocardial fibrosis.
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Affiliation(s)
- Qiang Wang
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
| | - Yunrong Zhang
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
| | - De Li
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
| | - Yan Zhang
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
| | - Bing Tang
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
| | - Gang Li
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
| | - Yongjian Yang
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
| | - Dachun Yang
- Department of Cardiology, Chengdu Military General Hospital, Jinniu, Chengdu, Sichuan 610083, P.R. China
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26
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Zhao JF, Shyue SK, Kou YR, Lu TM, Lee TS. Transient Receptor Potential Ankyrin 1 Channel Involved in Atherosclerosis and Macrophage-Foam Cell Formation. Int J Biol Sci 2016; 12:812-23. [PMID: 27313495 PMCID: PMC4910600 DOI: 10.7150/ijbs.15229] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 04/08/2016] [Indexed: 12/28/2022] Open
Abstract
Transient receptor potential ankyrin 1 channel (TRPA1) plays an important role in the pathogenesis of inflammatory diseases, yet its role and the underlying mechanism in atherosclerosis remain unclear. We aimed to investigate the role of TRPA1 in atherosclerosis and foam-cell formation in vivo in mice and in vitro in mouse macrophages. Histopathology was examined by hematoxylin and eosin staining, levels of cytokines and lipid profile were evaluated by assay kits, and protein expression was determined by western blot analysis. TRPA1 expression was increased in macrophage foam cells in atherosclerotic aortas of apolipoprotein E-deficient (apoE-/-) mice. Atherosclerotic lesions, hyperlipidemia and systemic inflammation were worsened with chronic administration of the TRPA1 channel antagonist HC030031 or genetic ablation of TRPA1 (TRPA1-/-) in apoE-/- mice. Treatment with allyl isothiocyanate (AITC, a TRPA1 agonist) retarded the progression of atherosclerosis in apoE-/- mice but not apoE-/-TRPA1-/- mice. Mouse macrophages showed oxidized low-density lipoprotein (oxLDL) activated TRPA1 channels. OxLDL-induced lipid accumulation of macrophages was exacerbated by HC030031 or loss of function of TRPA1. Inhibition of TRPA1 activity did not alter oxLDL internalization but impaired cholesterol efflux by downregulating the ATP-binding cassette transporters. Furthermore, tumor necrosis factor-α-induced inflammatory response was attenuated in AITC-activated macrophages. TRPA1 may be a pivotal regulator in the pathogenesis of atherosclerosis and cholesterol metabolism of macrophage foam cells.
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Affiliation(s)
- Jin-Feng Zhao
- 1. Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Song-Kun Shyue
- 2. Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yu Ru Kou
- 1. Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tse-Min Lu
- 3. Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan; 4. Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tzong-Shyuan Lee
- 1. Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan; 5. Genome Research Center, National Yang-Ming University, Taipei, Taiwan
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27
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Finley J. Oocyte activation and latent HIV-1 reactivation: AMPK as a common mechanism of action linking the beginnings of life and the potential eradication of HIV-1. Med Hypotheses 2016; 93:34-47. [PMID: 27372854 DOI: 10.1016/j.mehy.2016.05.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 05/12/2016] [Indexed: 01/22/2023]
Abstract
In all mammalian species studied to date, the initiation of oocyte activation is orchestrated through alterations in intracellular calcium (Ca(2+)) signaling. Upon sperm binding to the oocyte plasma membrane, a sperm-associated phospholipase C (PLC) isoform, PLC zeta (PLCζ), is released into the oocyte cytoplasm. PLCζ hydrolyzes phosphatidylinositol 4,5-bisphosphate (PIP2) to produce diacylglycerol (DAG), which activates protein kinase C (PKC), and inositol 1,4,5-trisphosphate (IP3), which induces the release of Ca(2+) from endoplasmic reticulum (ER) Ca(2+) stores. Subsequent Ca(2+) oscillations are generated that drive oocyte activation to completion. Ca(2+) ionophores such as ionomycin have been successfully used to induce artificial human oocyte activation, facilitating fertilization during intra-cytoplasmic sperm injection (ICSI) procedures. Early studies have also demonstrated that the PKC activator phorbol 12-myristate 13-acetate (PMA) acts synergistically with Ca(2+) ionophores to induce parthenogenetic activation of mouse oocytes. Interestingly, the Ca(2+)-induced signaling cascade characterizing sperm or chemically-induced oocyte activation, i.e. the "shock and live" approach, bears a striking resemblance to the reactivation of latently infected HIV-1 viral reservoirs via the so called "shock and kill" approach, a method currently being pursued to eradicate HIV-1 from infected individuals. PMA and ionomycin combined, used as positive controls in HIV-1 latency reversal studies, have been shown to be extremely efficient in reactivating latent HIV-1 in CD4(+) memory T cells by inducing T cell activation. Similar to oocyte activation, T cell activation by PMA and ionomycin induces an increase in intracellular Ca(2+) concentrations and activation of DAG, PKC, and downstream Ca(2+)-dependent signaling pathways necessary for proviral transcription. Interestingly, AMPK, a master regulator of cell metabolism that is activated thorough the induction of cellular stress (e.g. increase in Ca(2+) concentration, reactive oxygen species generation, increase in AMP/ATP ratio) is essential for oocyte maturation, T cell activation, and mitochondrial function. In addition to the AMPK kinase LKB1, CaMKK2, a Ca(2+)/calmodulin-dependent kinase that also activates AMPK, is present in and activated on T cell activation and is also present in mouse oocytes and persists until the zygote and two-cell stages. It is our hypothesis that AMPK activation represents a central node linking T cell activation-induced latent HIV-1 reactivation and both physiological and artificial oocyte activation. We further propose the novel observation that various compounds that have been shown to reactivate latent HIV-1 (e.g. PMA, ionomycin, metformin, bryostatin, resveratrol, etc.) or activate oocytes (PMA, ionomycin, ethanol, puromycin, etc.) either alone or in combination likely do so via stress-induced activation of AMPK.
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Su L, Zhang Y, He K, Wei S, Pei H, Wang Q, Yang D, Yang Y. Activation of transient receptor potential vanilloid 1 accelerates re-endothelialization and inhibits neointimal formation after vascular injury. J Vasc Surg 2016; 65:197-205.e2. [PMID: 26947234 DOI: 10.1016/j.jvs.2015.12.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 12/10/2015] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Transient receptor potential vanilloid 1 (TRPV1) is an important regulator of endothelial function, but the effects of TRPV1 on endothelial recovery and neointimal formation after vascular injury remain elusive. We tested the effects of activating TRPV1 using capsaicin on re-endothelialization and neointimal formation after wire-induced injury of the carotid artery in mice. METHODS The human umbilical vein endothelial cells (HUVECs) were treated with the TRPV1 agonist capsaicin, its antagonist capsazepine, intracellular calcium chelator BAPTA, or mitofusin 2 (Mfn2)-specific short interfering RNA (siRNA). The migration, proliferation, mitochondrial morphology, membrane potential, and adenosine triphosphate production were measured. The carotid artery wire injury procedure was performed in male TRPV1 knockout mice and C57BL/6J wild-type (WT) mice that were then treated with or without Mfn2 siRNA. The re-endothelialization and neointimal formation were evaluated. RESULTS Capsaicin significantly enhanced the migration and proliferation of HUVECs. Both capsazepine and BAPTA abolished capsaicin-induced migration and proliferation of HUVECs. In addition, capsaicin stimulated the formation of reticular mitochondria, augmented mitochondrial membrane potential, increased adenosine triphosphate production, and upregulated Mfn2. However, these effects were attenuated by knockdown of Mfn2 with specific siRNA. Dietary capsaicin markedly accelerated re-endothelialization and inhibited neointimal formation in WT mice but not in TRPV1 knockout mice. Moreover, Mfn2 siRNA also attenuated capsaicin-induced enhancement of endothelial recovery and suppression of neointimal hyperplasia in WT mice. CONCLUSIONS Activation of TRPV1 with capsaicin attenuates neointimal formation by accelerating re-endothelialization through upregulation of Mfn2.
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Affiliation(s)
- Linan Su
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Yunrong Zhang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Kecheng He
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Shujie Wei
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Haifeng Pei
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Qiang Wang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Dachun Yang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China.
| | - Yongjian Yang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan, China
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Transient Receptor Potential-canonical 1 is Essential for Environmental Enrichment-Induced Cognitive Enhancement and Neurogenesis. Mol Neurobiol 2016; 54:1992-2002. [DOI: 10.1007/s12035-016-9758-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 01/26/2016] [Indexed: 10/22/2022]
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30
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Yamashita H, Kusudo T, Takeuchi T, Qiao S, Tsutsumiuchi K, Wang T, Wang Y. Dietary supplementation with evodiamine prevents obesity and improves insulin resistance in ageing mice. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.09.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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31
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Role of phosphatase activity of soluble epoxide hydrolase in regulating simvastatin-activated endothelial nitric oxide synthase. Sci Rep 2015; 5:13524. [PMID: 26304753 PMCID: PMC4548251 DOI: 10.1038/srep13524] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 07/28/2015] [Indexed: 01/10/2023] Open
Abstract
Soluble epoxide hydrolase (sEH) has C-terminal epoxide hydrolase and N-terminal lipid phosphatase activity. Its hydrolase activity is associated with endothelial nitric oxide synthase (eNOS) dysfunction. However, little is known about the role of sEH phosphatase in regulating eNOS activity. Simvastatin, a clinical lipid-lowering drug, also has a pleiotropic effect on eNOS activation. However, whether sEH phosphatase is involved in simvastatin-activated eNOS activity remains elusive. We investigated the role of sEH phosphatase activity in simvastatin-mediated activation of eNOS in endothelial cells (ECs). Simvastain increased the phosphatase activity of sEH, which was diminished by pharmacological inhibitors of sEH phosphatase. In addition, pharmacological inhibition of sEH phosphatase or overexpressing the inactive phosphatase domain of sEH enhanced simvastatin-induced NO bioavailability, tube formation and phosphorylation of eNOS, Akt, and AMP-activated protein kinase (AMPK). In contrast, overexpressing the phosphatase domain of sEH limited the simvastatin-increased NO biosynthesis and eNOS phosphorylation at Ser1179. Simvastatin evoked epidermal growth factor receptor–c-Src–increased Tyr phosphorylation of sEH and formation of an sEH–Akt–AMPK–eNOS complex, which was abolished by the c-Src kinase inhibitor PP1 or c-Src dominant-negative mutant K298M. These findings suggest that sEH phosphatase activity negatively regulates simvastatin-activated eNOS by impeding the Akt–AMPK–eNOS signaling cascade.
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Maternal exposure to di-(2-ethylhexyl) phthalate exposure deregulates blood pressure, adiposity, cholesterol metabolism and social interaction in mouse offspring. Arch Toxicol 2015; 90:1211-24. [DOI: 10.1007/s00204-015-1539-0] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 05/13/2015] [Indexed: 01/28/2023]
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Guo BC, Wei J, Su KH, Chiang AN, Zhao JF, Chen HY, Shyue SK, Lee TS. Transient receptor potential vanilloid type 1 is vital for (-)-epigallocatechin-3-gallate mediated activation of endothelial nitric oxide synthase. Mol Nutr Food Res 2015; 59:646-57. [PMID: 25581901 DOI: 10.1002/mnfr.201400699] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 12/31/2014] [Accepted: 01/02/2015] [Indexed: 11/06/2022]
Abstract
SCOPE Epigallocatechin-3-gallate (EGCG), the most abundant catechin of green tea, has beneficial effects on physiological functions of endothelial cells (ECs), yet the detailed mechanisms are not fully understood. In this study, we investigated the role of transient receptor potential vanilloid type 1 (TRPV1), a ligand-gated nonselective calcium channel, in EGCG-mediated endothelial nitric oxide (NO) synthase (eNOS) activation and angiogenesis. METHODS AND RESULTS In ECs, treatment with EGCG time-dependently increased the intracellular level of Ca(2+) . Removal of extracellular calcium (Ca(2+) ) by EGTA or EDTA or inhibition of TRPV1 by capsazepine or SB366791 abrogated EGCG-increased intracellular Ca(2+) level in ECs or TRPV1-transfected HEK293 cells. Additionally, EGCG increased the phsophorylation of eNOS at Ser635 and Ser1179, Akt at Ser473, calmodulin-dependent protein kinase II (CaMKII) at Thr286 and AMP-activated protein kinase (AMPK) at Thr172, all abolished by the TRPV1 antagonist capsazepine. EGCG-induced NO production was diminished by pretreatment with LY294002 (an Akt inhibitor), KN62 (a CaMKII inhibitor), and compound C (an AMPK inhibitor). Moreover, blocking TRPV1 activation prevented EGCG-induced EC proliferation, migration, and tube formation, as well as angiogenesis in Matrigel plugs in mice. CONCLUSION EGCG may trigger activation of TRPV1-Ca(2+) signaling, which leads to phosphorylation of Akt, AMPK, and CaMKII; eNOS activation; NO production; and, ultimately, angiogenesis in ECs.
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Affiliation(s)
- Bei-Chia Guo
- Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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Su KH, Lin SJ, Wei J, Lee KI, Zhao JF, Shyue SK, Lee TS. The essential role of transient receptor potential vanilloid 1 in simvastatin-induced activation of endothelial nitric oxide synthase and angiogenesis. Acta Physiol (Oxf) 2014; 212:191-204. [PMID: 25183024 DOI: 10.1111/apha.12378] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/26/2014] [Accepted: 08/29/2014] [Indexed: 11/30/2022]
Abstract
AIMS We investigated the role of transient receptor potential vanilloid receptor type 1 (TRPV1) in simvastatin-mediated activation of endothelial nitric oxide synthase (eNOS) and angiogenesis. METHODS Fluo-8 NW assay was for Ca(2+) detection; Griess's assay was for NO bioavailability; Western blotting and immunoprecipitation were for protein phosphorylation and interaction; tube formation and Matrigel plug assay were for angiogenesis. RESULTS In endothelial cells (ECs), treatment with simvastatin time-dependently increased intracellular level of Ca(2+). Pharmacological inhibition or genetic disruption of TRPV1 abrogated simvastatin-mediated elevation of intracellular Ca(2+) in ECs or TRPV1-transfected HEK293 cells. Loss of TRPV1 function abolished simvastatin-induced NO production and phosphorylation of eNOS and calmodulin protein kinase II (CaMKII) in ECs and in aortas of mice. Inhibition of TRPV1 activation prevented the simvastatin-elicited increase in the formation of TRPV1-Akt-CaMKII-AMPK-eNOS complex. In mice, Matrigel plug assay showed that simvastatin-evoked angiogenesis was abolished by TRPV1 antagonist and genetic ablation of TRPV1. Additionally, our results demonstrated that TRP ankyrin 1 (TRPA1) is the downstream effector in the simvastatin-activated TRPV1-Ca(2+) signalling and in the consequent NO production and angiogenesis as evidence by that re-expression of TRPA1 further augmented simvastatin-elicited Ca(2+) influx in TRPV1-expressed HEK293 cells and ablation of TRPA1 function profoundly inhibited the simvastatin-induced increase in the phosphorylation of eNOS and CaMKII, formation of TRPV1-Akt-CaMKII-AMPK-eNOS complex, NO bioavailability, tube formation and angiogenesis in ECs or mice. CONCLUSION Simvastatin-induced Ca(2+) influx may through the activation of TRPV1-TRPA1 signalling, which leads to phosphorylation of CaMKII, increases in the formation of TRPV1-CaMKII-AMPK-eNOS complex, eNOS activation, NO production and, ultimately, angiogenesis in ECs.
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Affiliation(s)
- K.-H. Su
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
| | - S.-J. Lin
- Department of Internal Medicine; Taipei Veterans General Hospital; Taipei Taiwan
| | - J. Wei
- Heart Center; Cheng-Hsin General Hospital; Taipei Taiwan
| | - K.-I. Lee
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
| | - J.-F. Zhao
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
| | - S.-K. Shyue
- Cardiovascular Division; Institute of Biomedical Sciences; Academia Sinica; Taipei Taiwan
| | - T.-S. Lee
- Institute of Physiology; National Yang-Ming University; Taipei Taiwan
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Su KH, Lee KI, Shyue SK, Chen HY, Wei J, Lee TS. Implication of transient receptor potential vanilloid type 1 in 14,15-epoxyeicosatrienoic acid-induced angiogenesis. Int J Biol Sci 2014; 10:990-6. [PMID: 25210497 PMCID: PMC4159690 DOI: 10.7150/ijbs.9832] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 08/13/2014] [Indexed: 12/17/2022] Open
Abstract
14,15-epoxyeicosatrienoic acid (14,15-EET) is implicated in regulating physiological functions of endothelial cells (ECs), yet the potential molecular mechanisms underlying the beneficial effects in ECs are not fully understood. In this study, we investigated whether transient receptor potential vanilloid receptor type 1 (TRPV1) is involved in 14,15-EET-mediated Ca2+ influx, nitric oxide (NO) production and angiogenesis. In human microvascular endothelial cells (HMECs), 14,15-EET time-dependently increased the intracellular level of Ca2+. Removal of extracellular Ca2+, pharmacological inhibition or genetic disruption of TRPV1 abrogated 14,15-EET-mediated increase of intracellular Ca2+ level in HMECs or TRPV1-transfected HEK293 cells. Furthermore, removal of extracellular Ca2+ or pharmacological inhibition of TRPV1 decreased 14,15-EET-induced NO production. 14,15-EET-mediated tube formation was abolished by TRPV1 pharmacological inhibition. In an animal experiment, 14,15-EET-induced angiogenesis was diminished by inhibition of TRPV1 and in TRPV1-deficient mice. TRPV1 may play a crucial role in 14,15-EET-induced Ca2+ influx, NO production and angiogenesis.
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Affiliation(s)
- Kuo-Hui Su
- 1. Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221 Taiwan
| | - Kuan-I Lee
- 1. Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221 Taiwan
| | - Song-Kun Shyue
- 2. Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529 Taiwan
| | - Hsiang-Ying Chen
- 1. Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221 Taiwan
| | - Jeng Wei
- 3. Heart Center, Cheng-Hsin General Hospital, Taipei, 11221 Taiwan
| | - Tzong-Shyuan Lee
- 1. Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221 Taiwan
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Liu LH, Xie JY, Guo WW, Wu GY, Chen ZF, Yi JY, Zhang L, Zhang ZJ, Li Z. Evodiamine activates AMPK and promotes adiponectin multimerization in 3T3-L1 adipocytes. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 16:1074-1083. [PMID: 25082563 DOI: 10.1080/10286020.2014.939071] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Adiponectin, an adipokine with insulin-sensitizing effect, is secreted from adipocytes into circulation as high, medium, and low molecular weight (HMW, MMW, and LMW) forms. The HMW adiponectin is more metabolically active and the ratio of HMW adiponectin to total adiponectin directly correlates with insulin sensitivity. Evodiamine is an indole alkaloid found in the traditional Chinese medicinal plant Evodia rutaecarpa. In this study, evodiamine was found to activate AMP-activated protein kinase (AMPK) in both 3T3-L1 adipocytes and 293T cells. Activation of AMPK by evodiamine promoted the assembly of HMW adiponectin and increased the HMW/total ratio of adiponectin in 3T3-L1 adipocytes. The Ca(2+)-dependent PI3K/Akt/CaMKII-signaling pathway was demonstrated to be involved in evodiamine-induced AMPK activation. This study revealed a novel role of this Ca(2+)-mediated signaling pathway in promoting the multimerization of adiponectin.
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Affiliation(s)
- Long-Hua Liu
- a MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University , Beijing 100084 , China
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Wang T, Kusudo T, Takeuchi T, Yamashita Y, Kontani Y, Okamatsu Y, Saito M, Mori N, Yamashita H. Evodiamine inhibits insulin-stimulated mTOR-S6K activation and IRS1 serine phosphorylation in adipocytes and improves glucose tolerance in obese/diabetic mice. PLoS One 2013; 8:e83264. [PMID: 24391749 PMCID: PMC3877036 DOI: 10.1371/journal.pone.0083264] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 11/01/2013] [Indexed: 12/14/2022] Open
Abstract
Evodiamine, an alkaloid extracted from the dried unripe fruit of the tree Evodia rutaecarpa Bentham (Rutaceae), reduces obesity and insulin resistance in obese/diabetic mice; however, the mechanism underlying the effect of evodiamine on insulin resistance is unknown. This study investigated the effect of evodiamine on signal transduction relating to insulin resistance using obese/diabetic KK-Ay mice and an in vitro adipocyte culture. There is a significant decrease in the mammalian target of rapamycin (mTOR) and ribosomal S6 protein kinase (S6K) signaling in white adipose tissue (WAT) in KK-Ay mice treated with evodiamine, in which glucose tolerance is improved. In addition, reduction of insulin receptor substrate 1 (IRS1) serine phosphorylation, an indicator of insulin resistance, was detected in their WAT, suggesting suppression of the negative feedback loop from S6K to IRS1. As well as the stimulation of IRS1 and Akt serine phosphorylation, insulin-stimulated phosphorylation of mTOR and S6K is time-dependent in 3T3-L1 adipocytes, whereas evodiamine does not affect their phosphorylation except for an inhibitory effect on mTOR phosphorylation. Moreover, evodiamine inhibits the insulin-stimulated phosphorylation of mTOR and S6K, leading to down-regulation of IRS1 serine phosphorylation in the adipocytes. Evodiamine also stimulates phosphorylation of AMP-activated protein kinase (AMPK), an important regulator of energy metabolism, which may cause down-regulation of mTOR signaling in adipocytes. A similar effect on AMPK, mTOR and IRS1 phosphorylation was found in adipocytes treated with rosiglitazone. These results suggest evodiamine improves glucose tolerance and prevents the progress of insulin resistance associated with obese/diabetic states, at least in part, through inhibition of mTOR-S6K signaling and IRS1 serine phosphorylation in adipocytes.
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Affiliation(s)
- Ting Wang
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Japan
| | - Tatsuya Kusudo
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Japan
| | - Tamaki Takeuchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Japan
| | - Yukari Yamashita
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Japan
- Nutritional Health Science Research Center, Chubu University, Kasugai, Japan
| | - Yasuhide Kontani
- Department of Food Science for Health, Minami-Kyushu University, Miyazaki, Japan
| | - Yuko Okamatsu
- Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Masayuki Saito
- Department of Nutrition, School of Nursing and Nutrition, Tenshi College, Sapporo, Japan
| | - Nozomu Mori
- Department of Anatomy and Neurobiology, Nagasaki University School of Medicine, Nagasaki, Japan
| | - Hitoshi Yamashita
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Japan
- Nutritional Health Science Research Center, Chubu University, Kasugai, Japan
- * E-mail:
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Low-cytotoxic synthetic bromorutaecarpine exhibits anti-inflammation and activation of transient receptor potential vanilloid type 1 activities. BIOMED RESEARCH INTERNATIONAL 2013; 2013:795095. [PMID: 24369537 PMCID: PMC3863474 DOI: 10.1155/2013/795095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 10/29/2013] [Indexed: 01/07/2023]
Abstract
Rutaecarpine (RUT), the major bioactive ingredient isolated from the Chinese herb Evodia rutaecarpa, possesses a wide spectrum of biological activities, including anti-inflammation and preventing cardiovascular diseases. However, its high cytotoxicity hampers pharmaceutical development. We designed and synthesized a derivative of RUT, bromo-dimethoxyrutaecarpine (Br-RUT), which showed no cytotoxicity at 20 μM. Br-RUT suppressed nitric oxide (NO) production and tumor necrosis factor-α release in concentration-dependent (0~20 μM) manners in lipopolysaccharide (LPS)-treated RAW 264.7 macrophages; protein levels of inducible NO synthase (iNOS) and cyclooxygenase-2 induced by LPS were downregulated. Br-RUT inhibited cell migration and invasion of ovarian carcinoma A2780 cells with 0~48 h of treatment. Furthermore, Br-RUT enhanced the expression of transient receptor potential vanilloid type 1 and activated endothelial NOS in human aortic endothelial cells. These results suggest that the synthetic Br-RUT possesses very low cytotoxicity but retains its activities against inflammation and vasodilation that could be beneficial for cardiovascular disease therapeutics.
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Ching LC, Zhao JF, Su KH, Shyue SK, Hsu CP, Lu TM, Lin SJ, Lee TS. Activation of transient receptor potential vanilloid 1 decreases endothelial nitric oxide synthase phosphorylation at Thr497 by protein phosphatase 2B-dependent dephosphorylation of protein kinase C. Acta Physiol (Oxf) 2013; 209:124-35. [PMID: 24028645 DOI: 10.1111/apha.12157] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 08/12/2013] [Indexed: 01/09/2023]
Abstract
AIMS We investigated the effects and underlying molecular mechanism of transient receptor potential vanilloid 1 (TRPV1), a calcium (Ca(2+) )-permeable non-selective cation channel, on phosphorylation of endothelial nitric oxide synthase (eNOS) at threonine 497 (Thr497) in bovine aortic endothelial cells (BAECs) and in mice. METHODS Western blotting and immunoprecipitation were used for the evaluation of protein phosphorylation; protein phosphatase 2B (PP2B) activity was assessed by convention kit; Griess assay was for NO production; tube formation and Matrigel plug assay were used for angiogenesis. RESULTS In BAECs, treatment with the TRPV1 ligand evodiamine decreased the phosphorylation of eNOS at Thr497, protein kinase Cα (PKCα) at Serine 657 (Ser657) and PKCβ2 at Ser660. Evodiamine increased protein phosphatase 2B (PP2B) activity and promoted the formation of a PP2B-PKC complex. Inhibition of TRPV1 activation by the pharmacological antagonists, removal of extracellular Ca(2+) or pharmacological inhibition of PI3K/Akt/calmodulin-dependent protein kinase II/AMP-activated protein kinase signalling pathway abolished the evodiamine-induced alterations in phosphorylation of eNOS at Thr497, PKCα at Ser657, PKCβ2 at Ser660 and PP2B activity, as well as the formation of a PP2B-PKC complex. Inhibition of PP2B activation partially reduced the evodiamine-induced NO bioavailability and tube formation in endothelial cells (ECs) and angiogenesis in mice. Moreover, evodiamine decreased the phosphorylation of eNOS at Thr497, PKCα at Ser657 and PKCβ2 at Ser660 in apolipoprotein E (ApoE)-deficient mouse aortas but not TRPV1-deficient or ApoE/TRPV1 double-knockout mice. CONCLUSION TRPV1 activation in ECs may elicit a Ca(2+) -dependent effect on PP2B-PKC signalling, which leads to dephosphorylation of eNOS at Thr497 in ECs and in mice.
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Affiliation(s)
- L.-C. Ching
- Department of Physiology; National Yang-Ming University; Taipei; Taiwan
| | - J.-F. Zhao
- Department of Physiology; National Yang-Ming University; Taipei; Taiwan
| | - K.-H. Su
- Department of Physiology; National Yang-Ming University; Taipei; Taiwan
| | - S.-K. Shyue
- Institute of Biomedical Sciences; Academia Sinica; Taipei; Taiwan
| | - C.-P. Hsu
- Division of Cardiovascular Surgery; Department of Surgery; Taipei Veterans General Hospital; Taipei; Taiwan
| | - T.-M. Lu
- Division of Cardiology; Department of Internal Medicine; Taipei Veterans General Hospital; Taipei; Taiwan
| | | | - T.-S. Lee
- Department of Physiology; National Yang-Ming University; Taipei; Taiwan
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Activation of TRPV1 prevents OxLDL-induced lipid accumulation and TNF-α-induced inflammation in macrophages: role of liver X receptor α. Mediators Inflamm 2013; 2013:925171. [PMID: 23878415 PMCID: PMC3710635 DOI: 10.1155/2013/925171] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 05/26/2013] [Indexed: 11/18/2022] Open
Abstract
The transient receptor potential vanilloid type 1 (TRPV1) is crucial in the pathogenesis of atherosclerosis; yet its role and underlying mechanism in the formation of macrophage foam cells remain unclear. Here, we show increased TRPV1 expression in the area of foamy macrophages in atherosclerotic aortas of apolipoprotein E-deficient mice. Exposure of mouse bone-marrow-derived macrophages to oxidized low-density lipoprotein (oxLDL) upregulated the expression of TRPV1. In addition, oxLDL activated TRPV1 and elicited calcium (Ca2+) influx, which were abrogated by the pharmacological TRPV1 antagonist capsazepine. Furthermore, oxLDL-induced lipid accumulation in macrophages was ameliorated by TRPV1 agonists but exacerbated by TRPV1 antagonist. Treatment with TRPV1 agonists did not affect the internalization of oxLDL but promoted cholesterol efflux by upregulating the efflux ATP-binding cassette (ABC) transporters ABCA1 and ABCG1. Moreover, the upregulation of ABC transporters was mainly through liver X receptor α- (LXRα-) dependent regulation of transcription. Moreover, the TNF-α-induced inflammatory response was alleviated by TRPV1 agonists but aggravated by the TRPV1 antagonist and LXRα siRNA in macrophages. Our data suggest that LXRα plays a pivotal role in TRPV1-activation-conferred protection against oxLDL-induced lipid accumulation and TNF-α-induced inflammation in macrophages.
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Kaßmann M, Harteneck C, Zhu Z, Nürnberg B, Tepel M, Gollasch M. Transient receptor potential vanilloid 1 (TRPV1), TRPV4, and the kidney. Acta Physiol (Oxf) 2013; 207:546-64. [PMID: 23253200 DOI: 10.1111/apha.12051] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 11/15/2012] [Accepted: 12/11/2012] [Indexed: 12/13/2022]
Abstract
Recent preclinical data indicate that activators of transient receptor potential channels of the vanilloid receptor subtype 1 (TRPV1) may improve the outcome of ischaemic acute kidney injury (AKI). The underlying mechanisms are unclear, but may involve TRPV1 channels in dorsal root ganglion neurones that innervate the kidney. Recent data identified TRPV4, together with TRPV1, to serve as major calcium influx channels in endothelial cells. In these cells, gating of individual TRPV4 channels within a four-channel cluster provides elementary calcium influx (calcium sparklets) to open calcium-activated potassium channels and promote vasodilation. The TRPV receptors can also form heteromers that exhibit unique conductance and gating properties, further increasing their spatio-functional diversity. This review summarizes data on electrophysiological properties of TRPV1/4 and their modulation by endogenous channel agonists such as 20-HETE, phospholipase C and phosphatidylinositide 3-kinase (PI3 kinase). We review important roles of TRPV1 and TRPV4 in kidney physiology and renal ischaemia reperfusion injury; further studies are warranted to address renoprotective mechanism of vanilloid receptors in ischaemic AKI including the role of the capsaicin receptor TRPV1 in primary sensory nerves and/or endothelium. Particular attention should be paid to understand the kidneys' ability to respond to ischaemic stimuli after catheter-based renal denervation therapy in man, whereas the discovery of novel pharmacological TRPV modulators may be a successful strategy for better treatment of acute or chronic kidney failure.
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Affiliation(s)
- M. Kaßmann
- Charité University Medicine, Section Nephrology/Intensive Care, Campus Virchow, and Experimental and Clinical Research Center (ECRC); Berlin; Germany
| | - C. Harteneck
- Institut für Experimentelle & Klinische Pharmakologie & Toxikologie and Interfaculty Center of Pharmacogenomics and Pharmaceutical Research (ICePhA); Eberhard-Karls-Universität; Tübingen; Germany
| | - Z. Zhu
- Department of Hypertension and Endocrinology, Center for Hypertension and Metabolic Diseases; Daping Hospital, Third Military Medical University, Chongqing Institute of Hypertension; Chongqing; China
| | - B. Nürnberg
- Institut für Experimentelle & Klinische Pharmakologie & Toxikologie and Interfaculty Center of Pharmacogenomics and Pharmaceutical Research (ICePhA); Eberhard-Karls-Universität; Tübingen; Germany
| | - M. Tepel
- Department of Nephrology, and University of Southern Denmark, Institute of Molecular Medicine, Cardiovascular and Renal Research, Institute of Clinical Research; Odense University Hospital; Odense; Denmark
| | - M. Gollasch
- Charité University Medicine, Section Nephrology/Intensive Care, Campus Virchow, and Experimental and Clinical Research Center (ECRC); Berlin; Germany
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Wei J, Ching LC, Zhao JF, Shyue SK, Lee HF, Kou YR, Lee TS. Essential role of transient receptor potential vanilloid type 1 in evodiamine-mediated protection against atherosclerosis. Acta Physiol (Oxf) 2013; 207:299-307. [PMID: 23025809 DOI: 10.1111/apha.12005] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 06/07/2012] [Accepted: 09/01/2012] [Indexed: 12/21/2022]
Abstract
AIM We investigated whether transient receptor potential vanilloid type 1 (TRPV1) was involved in the therapeutic effect of evodiamine, a main bioactive component in the fruit of Evodiae rutaecarpa, on the development of atherosclerosis in apolipoprotein E-deficient (ApoE(-/-)) mice and ApoE(-/-)TRPV1(-/-) mice. METHODS Histopathology was examined by haematoxylin and eosin staining, levels of cytokines and mediators were evaluated by ELISA kits, and protein expression was determined by Western blotting. RESULTS Chronic administration with evodiamine (10 mg kg(-1) body weight) reduced the size of atherosclerotic lesions and alleviated the hyperlipidaemia and systemic inflammation, as well as hepatic macrovesicular steatosis, in ApoE(-/-) mice. Treating ApoE(-/-) mice with evodiamine enhanced hepatic cholesterol clearance, as revealed by upregulation of hepatic low-density lipoprotein receptor and ATP-binding cassette (ABC) transporters ABCG5, ABCG8 and cholesterol 7α-hydrolase. Genetic deletion of TRPV1 in ApoE(-/-) mice promoted the progression of atherosclerosis; elevated the serum levels of cholesterol, cytokines and chemokines; and exacerbated hepatic macrovesicular steatosis. Moreover, genetic deletion of TRPV1 abrogated the evodiamine-evoked atheroprotection but not anti-obesity effect in ApoE(-/-) mice. CONCLUSION Evodiamine may confer novel TRPV1-dependent atheroprotection and TRPV1-independent anti-obesity action.
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Affiliation(s)
- J. Wei
- Heart Center; Cheng-Hsin General Hospital; Taipei; Taiwan
| | - L.-C. Ching
- Department of Physiology; School of Medicine; National Yang-Ming University; Taipei; Taiwan
| | - J.-F. Zhao
- Department of Physiology; School of Medicine; National Yang-Ming University; Taipei; Taiwan
| | - S.-K. Shyue
- Institute of Biomedical Sciences; Academia Sinica; Taipei; Taiwan
| | | | - Y. R. Kou
- Department of Physiology; School of Medicine; National Yang-Ming University; Taipei; Taiwan
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Moccia F, Berra-Romani R, Tanzi F. Update on vascular endothelial Ca 2+ signalling: A tale of ion channels, pumps and transporters. World J Biol Chem 2012; 3:127-58. [PMID: 22905291 PMCID: PMC3421132 DOI: 10.4331/wjbc.v3.i7.127] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 07/04/2012] [Accepted: 07/11/2012] [Indexed: 02/05/2023] Open
Abstract
A monolayer of endothelial cells (ECs) lines the lumen of blood vessels and forms a multifunctional transducing organ that mediates a plethora of cardiovascular processes. The activation of ECs from as state of quiescence is, therefore, regarded among the early events leading to the onset and progression of potentially lethal diseases, such as hypertension, myocardial infarction, brain stroke, and tumor. Intracellular Ca2+ signals have long been know to play a central role in the complex network of signaling pathways regulating the endothelial functions. Notably, recent work has outlined how any change in the pattern of expression of endothelial channels, transporters and pumps involved in the modulation of intracellular Ca2+ levels may dramatically affect whole body homeostasis. Vascular ECs may react to both mechanical and chemical stimuli by generating a variety of intracellular Ca2+ signals, ranging from brief, localized Ca2+ pulses to prolonged Ca2+ oscillations engulfing the whole cytoplasm. The well-defined spatiotemporal profile of the subcellular Ca2+ signals elicited in ECs by specific extracellular inputs depends on the interaction between Ca2+ releasing channels, which are located both on the plasma membrane and in a number of intracellular organelles, and Ca2+ removing systems. The present article aims to summarize both the past and recent literature in the field to provide a clear-cut picture of our current knowledge on the molecular nature and the role played by the components of the Ca2+ machinery in vascular ECs under both physiological and pathological conditions.
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Affiliation(s)
- Francesco Moccia
- Francesco Moccia, Franco Tanzi, Department of Biology and Biotechnologies "Lazzaro Spallanzani", Laboratory of Physiology, University of Pavia, Via Forlanini 6, 27100 Pavia, Italy
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Caloric Restriction and the Nutrient-Sensing PGC-1α in Mitochondrial Homeostasis: New Perspectives in Neurodegeneration. Int J Cell Biol 2012; 2012:759583. [PMID: 22829833 PMCID: PMC3399559 DOI: 10.1155/2012/759583] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 06/08/2012] [Indexed: 12/25/2022] Open
Abstract
Mitochondrial activity progressively declines during ageing and in many neurodegenerative diseases. Caloric restriction (CR) has been suggested as a dietary intervention that is able to postpone the detrimental aspects of aging as it ameliorates mitochondrial performance. This effect is partially due to increased mitochondrial biogenesis. The nutrient-sensing PGC-1α is a transcriptional coactivator that promotes the expression of mitochondrial genes and is induced by CR. It is believed that many of the mitochondrial and metabolic benefits of CR are due to increased PGC-1α activity. The increase of PGC-1α is also positively linked to neuroprotection and its decrement has been involved in the pathogenesis of many neurodegenerative diseases. This paper aims to summarize the current knowledge about the role of PGC-1α in neuronal homeostasis and the beneficial effects of CR on mitochondrial biogenesis and function. We also discuss how PGC-1α-governed pathways could be used as target for nutritional intervention to prevent neurodegeneration.
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PAN XUEQIANG, WANG MANYUAN, WU YANCHUAN, LU XURAN, SHANG YAWEN, XU YONGSONG, ZHAI YONGSONG, LI JING, LI ZHAOXIA, GONG MUXIN. Identification of active ingredients in Wuzhuyu decoction improving migraine in mice by spectral efficiency association. Mol Med Rep 2012; 12:1524-34. [DOI: 10.3892/mmr.2015.3506] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Accepted: 02/05/2015] [Indexed: 11/06/2022] Open
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