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Huang K, Ding R, Lai C, Wang H, Fan X, Chu Y, Fang Y, Hua T, Yuan H. Vitexin attenuates neuropathic pain by regulating astrocyte autophagy flux and polarization via the S1P/ S1PR1-PI3K/ Akt axis. Eur J Pharmacol 2024; 981:176848. [PMID: 39094925 DOI: 10.1016/j.ejphar.2024.176848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 07/12/2024] [Accepted: 07/24/2024] [Indexed: 08/04/2024]
Abstract
Neuropathic pain (NP) is associated with astrocytes activation induced by nerve injury. Reactive astrocytes, strongly induced by central nervous system damage, can be classified into A1 and A2 types. Vitexin, a renowned flavonoid compound, is known for its anti-inflammatory and analgesic properties. However, its role in NP remains unexplored. This study aims to investigate the effects of vitexin on astrocyte polarization and its underlying mechanisms. A mouse model of NP was established, and primary astrocytes were stimulated with sphingosine-1-phosphate (S1P) to construct a cellular model. The results demonstrated significant activation of spinal astrocytes on days 14 and 21. Concurrently, reactive astrocytes predominantly differentiated into the A1 type. Western blot analysis revealed an increase in A1 astrocyte-associated protein (C3) and a decrease in A2 astrocyte-associated protein (S100A10). Serum S1P levels increased on days 14 and 21, alongside a significant upregulation of Sphingosine-1-phosphate receptor 1 (S1PR1) mRNA expression and elevated expression of chemokines. In vitro, stimulation with S1P inhibited the Phosphatidylinositol 3-kinase and protein kinase B (PI3K/Akt) signaling pathway and autophagy flux, promoting polarization of astrocytes towards the A1 phenotype while suppressing the polarization of A2 astrocytes. Our findings suggest that vitexin, acting on astrocytes but not microglia, attenuates S1P-induced downregulation of PI3K/Akt signaling, restores autophagy flux in astrocytes, regulates A1/A2 astrocyte ratio, and reduces chemokine and S1P secretion, thereby alleviating neuropathic pain caused by nerve injury.
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Affiliation(s)
- Kesheng Huang
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Ruifeng Ding
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai 200003, China
| | - Chengyuan Lai
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Haowei Wang
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai 200003, China
| | - Xiaoyi Fan
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai 200003, China
| | - Yan Chu
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai 200003, China
| | - Yuanyuan Fang
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai 200003, China
| | - Tong Hua
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai 200003, China.
| | - Hongbin Yuan
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China; Department of Anesthesiology, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai 200003, China.
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Zheng T, Jiang T, Huang Z, Ma H, Wang M. Role of traditional Chinese medicine monomers in cerebral ischemia/reperfusion injury:a review of the mechanism. Front Pharmacol 2023; 14:1220862. [PMID: 37654609 PMCID: PMC10467294 DOI: 10.3389/fphar.2023.1220862] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/04/2023] [Indexed: 09/02/2023] Open
Abstract
Ischemia/reperfusion (I/R) injury is a pathological process wherein reperfusion of an ischemic organ or tissue exacerbates the injury, posing a significant health threat and economic burden to patients and their families. I/R triggers a multitude of physiological and pathological events, such as inflammatory responses, oxidative stress, neuronal cell death, and disruption of the blood-brain barrier (BBB). Hence, the development of effective therapeutic strategies targeting the pathological processes resulting from I/R is crucial for the rehabilitation and long-term enhancement of the quality of life in patients with cerebral ischemia/reperfusion injury (CIRI). Traditional Chinese medicine (TCM) monomers refer to bioactive compounds extracted from Chinese herbal medicine, possessing anti-inflammatory and antioxidative effects, and the ability to modulate programmed cell death (PCD). TCM monomers have emerged as promising candidates for the treatment of CIRI and its subsequent complications. Preclinical studies have demonstrated that TCM monomers can enhance the recovery of neurological function following CIRI by mitigating oxidative stress, suppressing inflammatory responses, reducing neuronal cell death and functional impairment, as well as minimizing cerebral infarction volume. The neuroprotective effects of TCM monomers on CIRI have been extensively investigated, and a comprehensive understanding of their mechanisms can pave the way for novel approaches to I/R treatment. This review aims to update and summarize evidence of the protective effects of TCMs in CIRI, with a focus on their role in modulating oxidative stress, inflammation, PCD, glutamate excitotoxicity, Ca2+ overload, as well as promoting blood-brain barrier repairment and angiogenesis. The main objective is to underscore the significant contribution of TCM monomers in alleviating CIRI.
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Affiliation(s)
| | | | | | | | - Manxia Wang
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, China
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3
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Mustapha M, Mat Taib CN. Beneficial Role of Vitexin in Parkinson's Disease. Malays J Med Sci 2023; 30:8-25. [PMID: 37102042 PMCID: PMC10125247 DOI: 10.21315/mjms2023.30.2.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/05/2021] [Indexed: 04/28/2023] Open
Abstract
Today, Parkinson's disease (PD) is the foremost neurological disorder all across the globe. In the quest for a novel therapeutic agent for PD with a multimodal mechanism of action and relatively better safety profile, natural flavonoids are now receiving greater attention as a potential source of neuroprotection. Vitexin have been shown to exhibit diverse biological benefits in various disease conditions, including PD. It exerts its anti-oxidative property in PD patients by either directly scavenging reactive oxygen species (ROS) or by upregulating the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and enhancing the activities of antioxidant enzymes. Also, vitexin activates the ERK1/1 and phosphatidyl inositol-3 kinase/Akt (PI3K/Akt) pro-survival signalling pathway, which upregulates the release of anti-apoptotic proteins and downregulates the expression of pro-apoptotic proteins. It could be antagonistic to protein misfolding and aggregation. Studies have shown that it can also act as an inhibitor of monoamine oxidase B (MAO-B) enzyme, thereby increasing striatal dopamine levels, and hence, restoring the behavioural deficit in experimental PD models. Such promising pharmacological potential of vitexin could be a game-changer in devising novel therapeutic strategies against PD. This review discusses the chemistry, properties, sources, bioavailability and safety profile of vitexin. The possible molecular mechanisms underlying the neuroprotective action of vitexin in the pathogenesis of PD alongside its therapeutic potential is also discussed.
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Affiliation(s)
- Musa Mustapha
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
- Department of Human Anatomy, Faculty of Basic Medical Sciences, College of Medical Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Che Norma Mat Taib
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
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4
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Vitexin Improves Cerebral ischemia‑reperfusion Injury by Attenuating Oxidative Injury and Ferroptosis via Keap1/Nrf2/HO-1signaling. Neurochem Res 2023; 48:980-995. [PMID: 36435955 DOI: 10.1007/s11064-022-03829-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/27/2022] [Accepted: 11/14/2022] [Indexed: 11/28/2022]
Abstract
Cerebral ischemia/reperfusion involves multiple pathological processes and ferroptosis played a crucial role in the disease progression. Nevertheless, whether Vitexin could ameliorate ischemia/reperfusion injury via meditate the ferroptosis still remains unknown. In this study, we established the oxygen-glucose deprivation and reoxygenation (OGD/R) neuron cell and middle cerebral artery occlusion/reperfusion (MCAO/R) rat model. The cell viability, cell apoptosis and reactive oxygen species (ROS) levels were tested by CCK-8 assay and Flow cytometry, respectively. Hematoxylin-eosin staining, TTC, TEM, immunofluorescence analysis and western blot were used to investigate the effects of Vitexin. The results demonstrated that Vitexin could enhanced the cell viability and decreased the cell apoptosis in OGD/R cell model. Meanwhile, incubation with Vitexin maintained the neuroprotective effects in OGD/R induced generation of lipid ROS and neuronal cell ferroptosis via regulated the expressions of Keap1/Nrf2/HO-1 relative protein levels. Moreover, treatment with Vitexin reversed brain infracted volume, the normal histopathology and mitochondrial function in MCAO/R rat model. Vitexin significantly decreased the Nrf2 transfer ration from nuclear to cytosol and regulated the expression of Keap1/Nrf2/HO-1 signaling both in vitro and in vivo. Nevertheless, the protective effects of Vitexin were blocked with the Nrf2 inhibitor ML385. Vitexin could protect the neuron cell and brain related with the Keap1/Nrf2/HO-1 signaling pathway. Vitexin was a useful candidate for stroke therapy and our research may provide an attractive therapeutic target for the treatment of stroke.
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Huang L, Liu M, Jiang W, Ding H, Han Y, Wen M, Li Y, Liu X, Zeng H. Bradykinin/bradykinin 1 receptor promotes brain microvascular endothelial cell permeability and proinflammatory cytokine release by downregulating Wnt3a. J Biochem Mol Toxicol 2022; 36:e23213. [PMID: 36111657 PMCID: PMC10078380 DOI: 10.1002/jbt.23213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 06/29/2022] [Accepted: 08/30/2022] [Indexed: 11/10/2022]
Abstract
Stroke is a life-threatening disease with limited therapeutic options. Damage to the blood-brain barrier (BBB) is the key pathological feature of ischemic stroke. This study explored the role of the bradykinin (BK)/bradykinin 1 receptor (B1R) and its mechanism of action in the BBB. Human brain microvascular endothelial cells (BMECs) were used to test for cellular responses to BK by using the Cell Counting Kit-8 assay, 5-ethynyl-2'-deoxyuridine staining, enzyme-linked immunosorbent assay, flow cytometry, immunofluorescence, cellular permeability assays, and western blotting to evaluate cell viability, cytokine production, and reactive oxygen species (ROS) levels in vitro. A BBB induced by middle cerebral artery occlusion was used to evaluate BBB injuries, and the role played by BK/B1R in ischemic/reperfusion (I/R) was explored in a rat model. Results showed that BK reduced the viability of BMECs and increased the levels of proinflammatory cytokines (interleukin 6 [IL-6], IL-18, and monocyte chemoattractant protein-1) and ROS. Additionally, cellular permeability was increased by BK treatment, and the expression of tight junction proteins (claudin-5 and occludin) was decreased. Interestingly, Wnt3a expression was inhibited by BK and exogenous Wnt3a restored the effects of BK on BMECs. In an in vivo I/R rat model, knockdown of B1R significantly decreased infarct volume and inflammation in I/R rats. Our results suggest that BK might be a key inducer of BBB injury and B1R knockdown might provide a beneficial effect by upregulating Wnt3a.
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Affiliation(s)
- Linqiang Huang
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
| | - Mengting Liu
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
- Clinical Medical Division, The Second School of Clinical Medicine Southern Medical University Guangzhou China
| | - Wenqiang Jiang
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
| | - Hongguang Ding
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
| | - Yongli Han
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
| | - Miaoyun Wen
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
| | - Ya Li
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
- Clinical Medical Division, School of Medicine South China University of Technology Guangzhou China
| | - Xiaoyu Liu
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
- Clinical Medical Division, The Second School of Clinical Medicine Southern Medical University Guangzhou China
| | - Hongke Zeng
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong China
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Roles of Nitric Oxide in Brain Ischemia and Reperfusion. Int J Mol Sci 2022; 23:ijms23084243. [PMID: 35457061 PMCID: PMC9028809 DOI: 10.3390/ijms23084243] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/08/2022] [Accepted: 04/08/2022] [Indexed: 01/27/2023] Open
Abstract
Brain ischemia and reperfusion (I/R) is one of the most severe clinical manifestations of ischemic stroke, placing a significant burden on both individuals and society. The only FDA-approved clinical treatment for ischemic stroke is tissue plasminogen activator (t-PA), which rapidly restores cerebral blood flow but can have severe side effects. The complex pathological process of brain I/R has been well-established in the past few years, including energy metabolism disorders, cellular acidosis, doubling of the synthesis or release of excitotoxic amino acids, intracellular calcium homeostasis, free radical production, and activation of apoptotic genes. Recently, accumulating evidence has shown that NO may be strongly related to brain I/R and involved in complex pathological processes. This review focuses on the role of endogenous NO in pathological processes in brain I/R, including neuronal cell death and blood brain barrier disruption, to explore how NO impacts specific signaling cascades and contributes to brain I/R injury. Moreover, NO can rapidly react with superoxide to produce peroxynitrite, which may also mediate brain I/R injury, which is discussed here. Finally, we reveal several therapeutic approaches strongly associated with NO and discuss their potential as a clinical treatment for ischemic stroke.
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Kim Y, Cho AY, Kim HC, Ryu D, Jo SA, Jung YS. Effects of Natural Polyphenols on Oxidative Stress-Mediated Blood–Brain Barrier Dysfunction. Antioxidants (Basel) 2022; 11:antiox11020197. [PMID: 35204080 PMCID: PMC8868362 DOI: 10.3390/antiox11020197] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 02/01/2023] Open
Abstract
The blood-brain barrier (BBB), which consists mainly of brain microvascular endothelial cells and astrocytes connected by tight junctions (TJs) and adhesion molecules (AMs), maintains the homeostatic balance between brain parenchyma and extracellular fluid. Accumulating evidence shows that BBB dysfunction is a common feature of neurodegenerative diseases, including stroke, traumatic brain injury, and Alzheimer’s disease. Among the various pathological pathways of BBB dysfunction, reactive oxygen species (ROS) are known to play a key role in inducing BBB disruption mediated via TJ modification, AM induction, cytoskeletal reorganization, and matrix metalloproteinase activation. Thus, antioxidants have been suggested to exert beneficial effects on BBB dysfunction-associated brain diseases. In this review, we summarized the sources of ROS production in multiple cells that constitute or surround the BBB, such as BBB endothelial cells, astrocytes, microglia, and neutrophils. We also reviewed various pathological mechanisms by which BBB disruption is caused by ROS in these cells. Finally, we summarized the effects of various natural polyphenols on BBB dysfunction to suggest a therapeutic strategy for BBB disruption-related brain diseases.
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Affiliation(s)
- Yeonjae Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
| | - A Yeon Cho
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
| | - Hong Cheol Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
| | - Dajung Ryu
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
| | - Sangmee Ahn Jo
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea;
- Department of Pharmacology, College of Pharmacy, Dankook University, Cheonan 31116, Korea
| | - Yi-Sook Jung
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
- Correspondence: ; Tel.: +82-31-219-3444
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Varshney M, Kumar B, Rana VS, Sethiya NK. An overview on therapeutic and medicinal potential of poly-hydroxy flavone viz. Heptamethoxyflavone, Kaempferitrin, Vitexin and Amentoflavone for management of Alzheimer's and Parkinson's diseases: a critical analysis on mechanistic insight. Crit Rev Food Sci Nutr 2021; 63:2749-2772. [PMID: 34590507 DOI: 10.1080/10408398.2021.1980761] [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: 10/20/2022]
Abstract
Neurodegenerative disorders occur when nerve cells in the brain or peripheral nervous system partial or complete fail in their functions and sometimes even die due to some injuries or aging. Neurodegenerative disorders such as Alzheimer's Disease (AD) and Parkinson's Disease (PD), have been majorly resulted due to degeneration of neurons and neuroinflammation progressively. There are many similarities that correlates both AD and PD on a cellular and sub-cellular level. Therefore, a hope for therapeutic advancement for simultaneous upgradation in both the diseases are directly depending on the discovery of common mechanism at molecular and cellular level. Recent and past evidences from scientific literature supporting the efficacy of plants flavonoids in treatment and protection of both AD and PD. Further, dietary flavones, specially Heptamethoxyflavone, Kaempferitrin, Vitexin and Amentoflavone gains recently much more attention for producing many health beneficiary effects including neuroprotection. Despite of these evidence a detailed updated overview of neuroprotective effects against both AD and PD by Heptamethoxyflavone, Kaempferitrin, Vitexin and Amentoflavone are still missing. In this context several published studies were assessed by using various online electronic search engines/databases to meet the objective from 1981 to 2021 (Approx. 224). Therefore, present review was designed to deliver the detailed description on these flavones including therapeutic benefits in AD, PD and other CNS complications with critical analysis on underlying mechanisms.
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Affiliation(s)
| | - Bhavna Kumar
- Faculty of Pharmacy, DIT University, Dehradun, India
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Md Salleh MFRR, Aminuddin A, Hamid AA, Salamt N, Japar Sidik FZ, Ugusman A. Piper sarmentosum Roxb. Attenuates Vascular Endothelial Dysfunction in Nicotine-Induced Rats. Front Pharmacol 2021; 12:667102. [PMID: 34194328 PMCID: PMC8236855 DOI: 10.3389/fphar.2021.667102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/02/2021] [Indexed: 11/13/2022] Open
Abstract
Exposure to cigarette smoke is an important risk factor for cardiovascular diseases. Nicotine is an addictive compound in cigarette smoke that triggers oxidative stress, which leads to vascular dysfunction. Piper sarmentosum Roxb. is a herb with antioxidant and vascular protective effects. This study evaluated the potential protective effect of the aqueous extract of P. sarmentosum leaf (AEPS) on vascular dysfunction in rats induced with prolonged nicotine administration. A total of 22 male Sprague-Dawley rats were divided into control (normal saline, oral gavage [p.o.]), nicotine (0.8 mg/kg/day nicotine, intraperitoneally [i.p.]), and nicotine + AEPS groups (250 mg/kg/day AEPS, p.o. + 0.8 mg/kg/day nicotine, i.p.). Treatment was given for 21 days. Thoracic aortae were harvested from the rats for the measurement of vasorelaxation, vascular nitric oxide (NO) level, and antioxidant level and the assessment of vascular remodeling. Rats treated with AEPS had improved vasorelaxation to endothelium-dependent vasodilator, acetylcholine (ACh), compared with the nicotine-induced rats (p < 0.05). The presence of endothelium increased the maximum relaxation of aortic rings in response to ACh. Compared with the nicotine group, AEPS enhanced vascular NO level (p < 0.001) and increased antioxidant levels as measured by superoxide dismutase activity (p < 0.05), catalase activity (p < 0.01), and reduced glutathione level (p < 0.05). No remarkable changes in aortic histomorphometry were detected. In conclusion, P. sarmentosum attenuates vascular endothelial dysfunction in nicotine-induced rats by improving vasorelaxation and enhancing vascular NO and antioxidant levels.
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Affiliation(s)
| | - Amilia Aminuddin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Adila A Hamid
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Norizam Salamt
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | | | - Azizah Ugusman
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
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Xie Q, Li H, Lu D, Yuan J, Ma R, Li J, Ren M, Li Y, Chen H, Wang J, Gong D. Neuroprotective Effect for Cerebral Ischemia by Natural Products: A Review. Front Pharmacol 2021; 12:607412. [PMID: 33967750 PMCID: PMC8102015 DOI: 10.3389/fphar.2021.607412] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Natural products have a significant role in the prevention of disease and boosting of health in humans and animals. Stroke is a disease with high prevalence and incidence, the pathogenesis is a complex cascade reaction. In recent years, it’s reported that a vast number of natural products have demonstrated beneficial effects on stroke worldwide. Natural products have been discovered to modulate activities with multiple targets and signaling pathways to exert neuroprotection via direct or indirect effects on enzymes, such as kinases, regulatory receptors, and proteins. This review provides a comprehensive summary of the established pharmacological effects and multiple target mechanisms of natural products for cerebral ischemic injury in vitro and in vivo preclinical models, and their potential neuro-therapeutic applications. In addition, the biological activity of natural products is closely related to their structure, and the structure-activity relationship of most natural products in neuroprotection is lacking, which should be further explored in future. Overall, we stress on natural products for their role in neuroprotection, and this wide band of pharmacological or biological activities has made them suitable candidates for the treatment of stroke.
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Affiliation(s)
- Qian Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongyan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Danni Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jianmei Yuan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Rong Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinxiu Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mihong Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hai Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jian Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Daoyin Gong
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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11
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Abdulai IL, Kwofie SK, Gbewonyo WS, Boison D, Puplampu JB, Adinortey MB. Multitargeted Effects of Vitexin and Isovitexin on Diabetes Mellitus and Its Complications. ScientificWorldJournal 2021; 2021:6641128. [PMID: 33935599 PMCID: PMC8055414 DOI: 10.1155/2021/6641128] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 03/19/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Till date, there is no known antidote to cure diabetes mellitus despite the discovery and development of diverse pharmacotherapeutic agents many years ago. Technological advancement in natural product chemistry has led to the isolation of analogs of vitexin and isovitexin found in diverse bioresources. These compounds have been extensively studied to explore their pharmacological relevance in diabetes mellitus. Aim of the Study. The present review was to compile results from in vitro and in vivo studies performed with vitexin and isovitexin derivatives relating to diabetes mellitus and its complications. A systematic online literature query was executed to collect all relevant articles published up to March 2020. RESULTS In this piece, we have collected data and presented it in a one-stop document to support the multitargeted mechanistic actions of vitexin and isovitexin in controlling diabetes mellitus and its complications. CONCLUSION Data collected hint that vitexin and isovitexin work by targeting diverse pathophysiological and metabolic pathways and molecular drug points involved in the clinical manifestations of diabetes mellitus. This is expected to provide a deeper understanding of its actions and also serve as a catapult for clinical trials and application research.
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Affiliation(s)
- Ibrahim Luru Abdulai
- West African Centre for Cell Biology of Infectious Pathogens, College of Basic and Applied Sciences, University of Ghana, P.O. Box LG 54, Legon, Accra, Ghana
| | - Samuel Kojo Kwofie
- West African Centre for Cell Biology of Infectious Pathogens, College of Basic and Applied Sciences, University of Ghana, P.O. Box LG 54, Legon, Accra, Ghana
- Department of Biomedical Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, P.O. Box LG77, Legon, Accra, Ghana
| | - Winfred Seth Gbewonyo
- Department of Biochemistry, Cell and Molecular Biology, School of Biological Sciences, University of Ghana, Legon, Accra, Ghana
| | - Daniel Boison
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Joshua Buer Puplampu
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Michael Buenor Adinortey
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
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12
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Zhang H, Song Y, Feng C. Improvement of cerebral ischemia/reperfusion injury by daucosterol palmitate-induced neuronal apoptosis inhibition via PI3K/Akt/mTOR signaling pathway. Metab Brain Dis 2020; 35:1035-1044. [PMID: 32363473 DOI: 10.1007/s11011-020-00575-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 04/14/2020] [Indexed: 02/07/2023]
Abstract
Traditional Chinese medicine has growing importance in the treatment of ischemia stroke due to its abundance and low drug resistance. In this study, we aim to investigate the therapeutic potential of daucosterol palmitate against ischemia stroke, as well as its neuro-protective mechanism. The dose-response effects of daucosterol palmitate in the protection from brain damage were evaluated in a cerebral ischemia/reperfusion (I/R) rat model. The correlation of neuro-protective effects of daucosterol palmitate with apoptosis inhibition was examined and the possible signaling targets were identified. Our findings revealed that daucosterol palmitate treatment after 2 h' ischemia significantly lowered brain damage, and neuronal cell apoptosis caused by I/R injury in a dose-response mode (20, 40 and 80 mg/kg). Western blot analysis indicated that daucosterol palmitate could reverse the effects of I/R injury on protein expression of PI3K and mTOR, and phosphorylation of Akt. Contrarily, inactivation of PI3K using wortmannin dramatically antagonized the effect of daucosterol palmitate for I/R injury. With these findings, it supports the application potential of daucosterol palmitate in the treatment of ischemia stroke. Besides, the PI3K/Akt/mTOR pathway might be potential cellular targets for daucosterol palmitate.
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Affiliation(s)
- Huiyuan Zhang
- Department of Neurology, Liaocheng People's Hospital, Huashan road, NO 45, Liaocheng city, 252000, Shandong Province, China
| | - Yamin Song
- Department of Neurology, Liaocheng People's Hospital, Huashan road, NO 45, Liaocheng city, 252000, Shandong Province, China.
| | - Cong Feng
- Department of Surgery, Tumour Hospital of Liaocheng, Liaocheng city, 252000, Shandong, China
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13
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Association between the hydrogenase level and the occurrence of remote diffusion-weighted imaging lesions after spontaneous intracerebral hemorrhage. J Clin Neurosci 2020; 77:49-54. [PMID: 32418810 DOI: 10.1016/j.jocn.2020.05.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/21/2020] [Accepted: 05/03/2020] [Indexed: 11/24/2022]
Abstract
To explore the influence of serum lactate dehydrogenase (LDH) level on remote diffusion-weighted imaging lesions (rDWILs) after spontaneous intracerebral hemorrhage (ICH). A consecutive cohort of 160 patients with spontaneous ICH who had brain MRI within 4 weeks of ICH onset were collected and analyzed retrospectively. rDWILs showed high signal on diffusion-weighted image (DWI) while low signal on apparent diffusion coefficient (ADC), and at least 20 mm away from the hemorrhage focus. The blood samples were obtained within 24 h after ICH onset from all patients. Lactate dehydrogenase (LDH) levels in blood were collected from serum biochemical tests. We use multivariate logistic regression analyses to investigate the association between serum LDH level and rDWILs after ICH. The average serum LDH level was 186.5 ± 35.6 U/L. And this level was higher in patients who presented rDWILs than in those without rDWILs. With the best cut-off value of 191 by using receiver operating characteristic (ROC) analysis, elevated LDH was associated with the presence of rDWILs independently (OR = 1.024, 95%CI = 1.011-1.037, P < 0.001) in the bivariate logistic regression analysis with adjustment for age, sex, previous ischemic stroke/TIA, smoker, SBP on admission, hematoma volume, and intraventricular hemorrhage (IVH). The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) of LDH ≥ 191 U/L for rDWILs were 70.4%, 72.2%, 33.9%, 94.2%, respectively. Our study suggests serum LDH level has a significant correlation with rDWILs after spontaneous ICH. Patients with higher serum LDH level in 24 h after ICH onset may be a useful predictor for rDWILs occurrence.
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14
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Absorption, metabolism, and bioactivity of vitexin: recent advances in understanding the efficacy of an important nutraceutical. Crit Rev Food Sci Nutr 2020; 61:1049-1064. [PMID: 32292045 DOI: 10.1080/10408398.2020.1753165] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
vitexin, an apigenin-8-C-glucoside, is widely present in numerous edible and medicinal plants. vitexin possesses a variety of bioactive properties, including antioxidation, anti-inflammation, anti-cancer, neuron-protection, and cardio-protection. Other beneficial health effects, such as fat reduction, glucose metabolism, and hepatoprotection, have also been reported in recent studies. This review briefly discusses the absorption and metabolism of vitexin, as well as its influence on gut microbiota. Recent advances in understanding the pharmacological and biological effects of vitexin are then reviewed. Improved knowledge of the absorption, metabolism, bioactivity, and molecular targets of vitexin is crucial for the better utilization of this emerging nutraceutical as a chemopreventive and chemotherapeutic agent.
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15
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Long Y, Yang Q, Xiang Y, Zhang Y, Wan J, Liu S, Li N, Peng W. Nose to brain drug delivery - A promising strategy for active components from herbal medicine for treating cerebral ischemia reperfusion. Pharmacol Res 2020; 159:104795. [PMID: 32278035 DOI: 10.1016/j.phrs.2020.104795] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 03/23/2020] [Accepted: 04/01/2020] [Indexed: 01/08/2023]
Abstract
Cerebral ischemia reperfusion injury (CIRI), one of the major causes of death from stroke in the world, not only causes tremendous damage to human health, but also brings heavy economic burden to society. Current available treatments for CIRI, including mechanical therapies and drug therapies, are often accompanied by significant side-effects. Therefore, it is necessary to discovery new strategies for treating CIRI. Many studies have confirmed that the herbal medicine has the advantages of abundant resources, good curative effect and little side effects, which can be used as potential drug for treatment of CIRI through multiple targets. It's known that oral administration commonly has low bioavailability, and injection administration is inconvenient and unsafe. Many drugs can't delivery to brain through routine pathways due to the blood-brain-barrier (BBB). Interestingly, increasing evidences have suggested the nasal administration is a potential direct route to transport drug into brain avoiding the BBB and has the characteristics of high bioavailability for treating brain diseases. Therefore, intranasal administration can be treated as an alternative way to treat brain diseases. In the present review, effective methods to treat CIRI by using active ingredients derived from herbal medicine through nose to brain drug delivery (NBDD) are updated and discussed, and some related pharmacological mechanisms have also been emphasized. Our present study would be beneficial for the further drug development of natural agents from herbal medicines via NBDD.
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Affiliation(s)
- Yu Long
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu, 611137, PR China
| | - Qiyue Yang
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, PR China
| | - Yan Xiang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu, 611137, PR China
| | - Yulu Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu, 611137, PR China
| | - Jinyan Wan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu, 611137, PR China
| | - Songyu Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu, 611137, PR China
| | - Nan Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu, 611137, PR China.
| | - Wei Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu, 611137, PR China.
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16
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Li Y, Sun J, Wu R, Bai J, Hou Y, Zeng Y, Zhang Y, Wang X, Wang Z, Meng X. Mitochondrial MPTP: A Novel Target of Ethnomedicine for Stroke Treatment by Apoptosis Inhibition. Front Pharmacol 2020; 11:352. [PMID: 32269527 PMCID: PMC7109312 DOI: 10.3389/fphar.2020.00352] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/09/2020] [Indexed: 12/31/2022] Open
Abstract
Mammalian mitochondrial permeability transition pore (MPTP), across the inner and outer membranes of mitochondria, is a nonspecific channel for signal transduction or material transfer between mitochondrial matrix and cytoplasm such as maintenance of Ca2+ homeostasis, regulation of oxidative stress signals, and protein translocation evoked by some of stimuli. Continuous MPTP opening has been proved to stimulate neuronal apoptosis in ischemic stroke. Meanwhile, inhibition of MPTP overopening-induced apoptosis has shown excellent efficacy in the treatment of ischemic stroke. Among of which, the potential molecular mechanisms of drug therapy for stroke has also been gradually revealed by researchers. The characteristics of multi-components or multi-targets for ethnic drugs also provide the possibility to treat stroke from the perspective of mitochondrial MPTP. The advantages mentioned above make it necessary for us to explore and clarify the new perspective of ethnic medicine in treating stroke and to determine the specific molecular mechanisms through advanced technologies as much as possible. In this review, we attempt to uncover the relationship between abnormal MPTP opening and neuronal apoptosis in ischemic stroke. We further summarized currently authorized drugs, ethnic medicine prescriptions, herbs, and identified monomer compounds for inhibition of MPTP overopening-induced ischemic neuron apoptosis. Finally, we strive to provide a new perspective and enlightenment for ethnic medicine in the prevention and treatment of stroke by inhibition of MPTP overopening-induced neuronal apoptosis.
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Affiliation(s)
- Yangxin Li
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiayi Sun
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ruixia Wu
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinrong Bai
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ya Hou
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Zeng
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Zhang
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaobo Wang
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhang Wang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xianli Meng
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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17
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Cong X, Kong W. Endothelial tight junctions and their regulatory signaling pathways in vascular homeostasis and disease. Cell Signal 2019; 66:109485. [PMID: 31770579 DOI: 10.1016/j.cellsig.2019.109485] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/21/2019] [Accepted: 11/21/2019] [Indexed: 12/13/2022]
Abstract
Endothelial tight junctions (TJs) regulate the transport of water, ions, and molecules through the paracellular pathway, serving as an important barrier in blood vessels and maintaining vascular homeostasis. In endothelial cells (ECs), TJs are highly dynamic structures that respond to multiple external stimuli and pathological conditions. Alterations in the expression, distribution, and structure of endothelial TJs may lead to many related vascular diseases and pathologies. In this review, we provide an overview of the assessment methods used to evaluate endothelial TJ barrier function both in vitro and in vivo and describe the composition of endothelial TJs in diverse vascular systems and ECs. More importantly, the direct phosphorylation and dephosphorylation of TJ proteins by intracellular kinases and phosphatases, as well as the signaling pathways involved in the regulation of TJs, including and the protein kinase C (PKC), PKA, PKG, Ras homolog gene family member A (RhoA), mitogen-activated protein kinase (MAPK), phosphatidylinositol 3-kinase (PI3K)/Akt, and Wnt/β-catenin pathways, are discussed. With great advances in this area, targeting endothelial TJs may provide novel treatment for TJ-related vascular pathologies.
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Affiliation(s)
- Xin Cong
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China.
| | - Wei Kong
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China.
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