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Liu K, Zhou Y, Song X, Zeng J, Wang Z, Wang Z, Zhang H, Xu J, Li W, Gong Z, Wang M, Liu B, Xiao N, Liu K. Baicalin attenuates neuronal damage associated with SDH activation and PDK2-PDH axis dysfunction in early reperfusion. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155570. [PMID: 38579645 DOI: 10.1016/j.phymed.2024.155570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 03/13/2024] [Accepted: 03/25/2024] [Indexed: 04/07/2024]
Abstract
BACKGROUND Energy deficiency and oxidative stress are interconnected during ischemia/reperfusion (I/R) and serve as potential targets for the treatment of cerebral ischemic stroke. Baicalin is a neuroprotective antioxidant, but the underlying mechanisms are not fully revealed. PURPOSE This study explored whether and how baicalin rescued neurons against ischemia/reperfusion (I/R) attack by focusing on the regulation of neuronal pyruvate dehydrogenase kinase 2 (PDK2)-pyruvate dehydrogenase (PDH) axis implicated with succinate dehydrogenase (SDH)-mediated oxidative stress. STUDY DESIGN The effect of the tested drug was explored in vitro and in vivo with the model of oxygen-glucose deprivation/reoxygenation (OGD/R) and middle cerebral artery occlusion/reperfusion (MCAO/R), respectively. METHODS Neuronal damage was evaluated according to cell viability, infarct area, and Nissl staining. Protein levels were measured by western blotting and immunofluorescence. Gene expression was investigated by RT-qPCR. Mitochondrial status was also estimated by fluorescence probe labeling. RESULTS SDH activation-induced excessive production of reactive oxygen species (ROS) changed the protein expression of Lon protease 1 (LonP1) and hypoxia-inducible factor-1ɑ (HIF-1ɑ) in the early stage of I/R, leading to an upregulation of PDK2 and a decrease in PDH activity in neurons and cerebral cortices. Treatment with baicalin prevented these alterations and ameliorated neuronal ATP production and survival. CONCLUSION Baicalin improves the function of the neuronal PDK2-PDH axis via suppression of SDH-mediated oxidative stress, revealing a new signaling pathway as a promising target under I/R conditions and the potential role of baicalin in the treatment of acute ischemic stroke.
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Affiliation(s)
- Kaili Liu
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Ying Zhou
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Xianrui Song
- Department of Biochemistry and Molecular Biology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
| | - Jiahan Zeng
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Zhuqi Wang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Ziqing Wang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Honglei Zhang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Jiaxing Xu
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Wenting Li
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Zixuan Gong
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Min Wang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Baolin Liu
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Na Xiao
- College of Agronomy, Shandong Agriculture University, Tai'an, Shandong 271018, PR China.
| | - Kang Liu
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China.
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He Y, Jin W, Wan H, Zhang L, Yu L. Research progress on immune-related therapeutic targets of brain injury caused by cerebral ischemia. Cytokine 2024; 180:156651. [PMID: 38761715 DOI: 10.1016/j.cyto.2024.156651] [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: 03/08/2024] [Revised: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
Stroke is the second leading cause of death worldwide and a leading cause of disability. The innate immune response occurs immediately after cerebral ischemia, resulting in adaptive immunity. More and more experimental evidence has proved that the immune response caused by cerebral ischemia plays an important role in early brain injury and later the recovery of brain injury. Innate immune cells and adaptive cells promote the occurrence of cerebral ischemic injury but also protect brain cells. A large number of studies have shown that cytokines and immune-related substances also have dual functions of promoting injury, reducing injury, or promoting injury recovery in the later stage of cerebral ischemia. They can be an important target for treating cerebral ischemic recovery. Therefore, this study discussed the immune cells, cytokines, and immune-related substances with dual roles in cerebral ischemia and summarized the therapeutic targets of cerebral ischemia. To explore more effective methods to treat cerebral ischemia, promote the recovery of brain function, and improve the prognosis of patients.
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Affiliation(s)
- Yuejia He
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Weifeng Jin
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Haitong Wan
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Lijiang Zhang
- Key Laboratory of Drug Safety Evaluation and Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, China.
| | - Li Yu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; Key Laboratory of Drug Safety Evaluation and Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, China.
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Ma Y, Hu X, Shen S, Pan D. Geniposide ameliorates brain injury in mice with intracerebral hemorrhage by inhibiting NF-κB signaling. Neurol Res 2024; 46:346-355. [PMID: 38402902 DOI: 10.1080/01616412.2024.2321014] [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: 10/20/2023] [Accepted: 02/14/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Neuroinflammation and oxidative stress are critical players in intracerebral hemorrhage (ICH). Geniposide is an active component of Gardenia that has anti-inflammatory effects. This study focused on the roles and mechanisms of geniposide in ICH. METHODS ICH was established by injecting collagenase IV into C57BL/6 mice. To determine the functions of geniposide and NF-κB inhibition in ICH model mice, geniposide (1, 25, or 50 mg/kg) or PDTC (a NF-κB inhibitor) was administered. Neurological functions were assessed with the modified neurological severity score (mNSS) test. Hematoxylin and eosin staining were performed to identify pathological changes. IL-1β and TNF-α levels were estimated with ELISA kits. NF-κB p65 localization was determined by immunofluorescence staining. Oxidative stress was analyzed by measuring ROS levels. RESULTS Geniposide alleviated cerebral edema and neurological deficits. Geniposide inhibited neuroinflammation and oxidative stress after ICH, and the inhibitory effects were enhanced by NF-κB inhibition. Additionally, geniposide inhibited NF-κB signaling. CONCLUSION Geniposide alleviates brain injury by suppressing inflammation and oxidative stress damage in experimental ICH models by inhibiting NF-κB signaling.
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Affiliation(s)
- Yinghui Ma
- Department of Neurosurgery, Huang Shi Central Hospital, HuangShi, China
| | - Xiao Hu
- Department of Neurosurgery, Huang Shi Central Hospital, HuangShi, China
| | - Songbo Shen
- Department of Neurosurgery, Huang Shi Central Hospital, HuangShi, China
| | - Dongmei Pan
- Department of Geriatrics, Huang Shi Central Hospital, HuangShi, China
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Zhang Y, Gong X. Fat mass and obesity associated protein inhibits neuronal ferroptosis via the FYN/Drp1 axis and alleviate cerebral ischemia/reperfusion injury. CNS Neurosci Ther 2024; 30:e14636. [PMID: 38430221 PMCID: PMC10908355 DOI: 10.1111/cns.14636] [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: 06/27/2023] [Revised: 01/05/2024] [Accepted: 01/25/2024] [Indexed: 03/03/2024] Open
Abstract
OBJECTIVES FTO is known to be involved in cerebral ischemia/reperfusion (I/R) injury. However, its related specific mechanisms during this condition warrant further investigations. This study aimed at exploring the impacts of FTO and the FYN/DRP1 axis on mitochondrial fission, oxidative stress (OS), and ferroptosis in cerebral I/R injury and the underlying mechanisms. METHODS The cerebral I/R models were established in mice via the temporary middle cerebral artery occlusion/reperfusion (tMCAO/R) and hypoxia/reoxygenation models were induced in mouse hippocampal neurons via oxygen-glucose deprivation/reoxygenation (OGD/R). After the gain- and loss-of-function assays, related gene expression was detected, along with the examination of mitochondrial fission, OS- and ferroptosis-related marker levels, neuronal degeneration and cerebral infarction, and cell viability and apoptosis. The binding of FTO to FYN, m6A modification levels of FYN, and the interaction between FYN and Drp1 were evaluated. RESULTS FTO was downregulated and FYN was upregulated in tMCAO/R mouse models and OGD/R cell models. FTO overexpression inhibited mitochondrial fission, OS, and ferroptosis to suppress cerebral I/R injury in mice, which was reversed by further overexpressing FYN. FTO overexpression also suppressed mitochondrial fission and ferroptosis to increase cell survival and inhibit cell apoptosis in OGD/R cell models, which was aggravated by additionally inhibiting DRP1. FTO overexpression inhibited FYN expression via the m6A modification to inactive Drp1 signaling, thus reducing mitochondrial fission and ferroptosis and enhancing cell viability in cells. CONCLUSIONS FTO overexpression suppressed FYN expression through m6A modification, thereby subduing Drp1 activity and relieving cerebral I/R injury.
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Affiliation(s)
- Yi Zhang
- Department of Emergency, Hunan Provincial People's HospitalThe First Affiliated Hospital of Hunan Normal UniversityChangshaHunanChina
| | - Xin Gong
- Department of Neurosurgery, Hunan Provincial People's HospitalThe First Affiliated Hospital of Hunan Normal UniversityChangshaHunanChina
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Huang X, Lowrie DB, Fan XY, Hu Z. Natural products in anti-tuberculosis host-directed therapy. Biomed Pharmacother 2024; 171:116087. [PMID: 38171242 DOI: 10.1016/j.biopha.2023.116087] [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: 10/25/2023] [Revised: 12/17/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024] Open
Abstract
Given that the disease progression of tuberculosis (TB) is primarily related to the host's immune status, it has been gradually realized that chemotherapy that targets the bacteria may never, on its own, wholly eradicate Mycobacterium tuberculosis, the causative agent of TB. The concept of host-directed therapy (HDT) with immune adjuvants has emerged. HDT could potentially interfere with infection and colonization by the pathogens, enhance the protective immune responses of hosts, suppress the overwhelming inflammatory responses, and help to attain a state of homeostasis that favors treatment efficacy. However, the HDT drugs currently being assessed in combination with anti-TB chemotherapy still face the dilemmas arising from side effects and high costs. Natural products are well suited to compensate for these shortcomings by having gentle modulatory effects on the host immune responses with less immunopathological damage at a lower cost. In this review, we first summarize the profiles of anti-TB immunology and the characteristics of HDT. Then, we focus on the rationale and challenges of developing and implementing natural products-based HDT. A succinct report of the medications currently being evaluated in clinical trials and preclinical studies is provided. This review aims to promote target-based screening and accelerate novel TB drug discovery.
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Affiliation(s)
- Xuejiao Huang
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China
| | - Douglas B Lowrie
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China
| | - Xiao-Yong Fan
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China.
| | - Zhidong Hu
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China.
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Zheng F, Zhao T, Liu Z. Acute and 90-day toxicological safety assessment of Shang-Ke-Huang-Shui lotion in New Zealand White rabbits. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117027. [PMID: 37704118 DOI: 10.1016/j.jep.2023.117027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 09/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shang-Ke-Huang-Shui lotion (SKHS), an experiential formula based on the theory of traditional Chinese medicine as a hospital preparation, combines Coptidis Rhizoma, Phellodendri Chinensis Cortex, Gardeniae Fructus, Arnebiae Radix, Menthae Haplocalycis Herba and Alumen. While it has acquired positive effects on the treatment of soft tissue injuries, there is no systematic safety assessment in recent studies. AIM OF THE STUDY The study aimed to investigate the acute and long-term toxicity in New Zealand White rabbits using topical administration of SKHS. MATERIALS AND METHODS In the acute toxicity study, rabbits were given topical administration of SKHS extract (2.775 g crude drug/mL) 3 times daily in normal and broken skin. In the long-term toxicity study, rabbits underwent topical administration of SKHS extract (1.390, 0.694, 0.139 g crude drug/mL) 1 time per day in normal and broken skin for 90 days. Their general behavior, body weight, food intake, biochemical and hematologic parameters, organ coefficients, and pathological morphology were analyzed. RESULTS Mild skin irritation was observed in rabbits with normal or broken skin following acute exposure to the high dose of SKHS. Evidence of toxicity was not observed in the rabbits exposed to SKHS for an extended period. Although some parameters have been significant changes, they cannot be considered treatment-related because they have remained within normal limits. CONCLUSION Topical administration of SKHS could be considered relatively safe and did not reveal any severe toxicity or side effects in this study.
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Affiliation(s)
- Fanghao Zheng
- The Eighth School of Clinical Medicine, Guangzhou University of Chinese Medicine, Foshan, 528000, PR China.
| | - Tingting Zhao
- The Eighth School of Clinical Medicine, Guangzhou University of Chinese Medicine, Foshan, 528000, PR China
| | - Zhenyang Liu
- The Eighth School of Clinical Medicine, Guangzhou University of Chinese Medicine, Foshan, 528000, PR China
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Gao K, Shao W, Wei T, Yan Z, Li N, Lv C. Wnt-3a improves functional recovery after spinal cord injury by regulating the inflammatory and apoptotic response in rats via wnt/β-catenin signaling pathway. Brain Res 2024; 1822:148637. [PMID: 37858855 DOI: 10.1016/j.brainres.2023.148637] [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: 06/06/2023] [Revised: 09/29/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
The specific molecular mechanism of neuroprotective effects of wnt-3a on spinal cord injury (SCI) has not been elucidated. In our study, we evaluated the recovery of motor function after SCI by BBB, observed neuronal apoptosis by western blot and TUNEL, observed the changes of neuronal inflammation by western blot and immunofluorescence staining, and observed the changes of motoneurons and spinal cord area in the anterior horn of the spinal cord via Nissl and HE staining. We found that wnt-3a could significantly promote the recovery of motor function, reduce the loss of motor neurons in the anterior horn of the spinal cord, promote the recovery of injured spinal cord tissue, inhibit neuronal apoptosis and inflammatory response, and ultimately promote neuronal function after SCI. However, when XAV939 inhibits the wnt/β-catenin signaling pathway, the neuroprotective effects of wnt-3a are also significantly inhibited. The above results together indicated that wnt-3a exerts its neuroprotective effect on after SCI via activating the wnt/β-catenin signaling pathway.
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Affiliation(s)
- Kai Gao
- Postdoctoral of Shandong University of Traditional Chinese Medicine, Jinan, China; Department of Orthopedics, Jining No.1 People's Hospital, Jining, China
| | - Wenbo Shao
- Department of Orthopedics, Jining No.2 People's Hospital, Jining, China
| | - Tian Wei
- School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zihan Yan
- School of Clinical Medicine, Jining Medical University, Jining, China
| | - Nianhu Li
- Postdoctoral of Shandong University of Traditional Chinese Medicine, Jinan, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, China.
| | - Chaoliang Lv
- Department of Orthopedics, Jining No.1 People's Hospital, Jining, China; School of Clinical Medicine, Jining Medical University, Jining, China.
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Ma Z, Wu Y, Xu J, Cao H, Du M, Jiang H, Qiu F. Sodium Tanshinone IIA Sulfonate Ameliorates Oxygen-glucose Deprivation/Reoxygenation-induced Neuronal Injury via Protection of Mitochondria and Promotion of Autophagy. Neurochem Res 2023; 48:3378-3390. [PMID: 37436612 DOI: 10.1007/s11064-023-03985-x] [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: 02/16/2023] [Revised: 06/04/2023] [Accepted: 07/04/2023] [Indexed: 07/13/2023]
Abstract
Sodium tanshinone IIA sulfonate (STS) has shown significant clinical therapeutic effects in cerebral ischemic stroke (CIS), but the molecular mechanisms of neuroprotection remain partially known. The purpose of this study was to explore whether STS plays a protective role in oxygen-glucose deprivation/reoxygenation (OGD/R)-induced neuronal injury by regulating microglia autophagy and inflammatory activity. Co-cultured microglia and neurons were subjected to OGD/R injury, an in vitro model of ischemia/reperfusion (I/R) injury with or without STS treatment. Expression of protein phosphatase 2 A (PP2A) and autophagy-associated proteins Beclin 1, autophagy related 5 (ATG5), and p62 in microglia was determined by Western blotting. Autophagic flux in microglia was observed with confocal laser scanning microscopy. Neuronal apoptosis was measured by flow cytometric and TUNEL assays. Neuronal mitochondrial function was determined via assessments of reactive oxygen species generation and mitochondrial membrane potential integrity. STS treatment markedly induced PP2A expression in microglia. Forced overexpression of PP2A increased levels of Beclin 1 and ATG5, decreased the p62 protein level, and induced autophagic flux. Silencing of PP2A or administration of 3-methyladenine inhibited autophagy and decreased the production of anti-inflammatory factors (IL-10, TGF-β and BDNF) and induced the release of proinflammatory cytokines (IL-1β, IL-2 and TNF-α) by STS-treated microglia, thereby inducing mitochondrial dysfunction and apoptosis of STS-treated neurons. STS exerts protection against neuron injury, and the PP2A gene plays a crucial role in improving mitochondrial function and inhibiting neuronal apoptosis by regulating autophagy and inflammation in microglia.
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Affiliation(s)
- Zhi Ma
- Cerebrovascular Disease Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Rd, Nanjing, 210029, Jiangsu, P.R. China
| | - Yue Wu
- Neonatal Medical Center, Children's Hospital of Nanjing Medical University, Nanjing, 210008, Jiangsu Province, China
| | - Juan Xu
- Department of Immunology, Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Hui Cao
- Cerebrovascular Disease Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Rd, Nanjing, 210029, Jiangsu, P.R. China
| | - Mingyang Du
- Cerebrovascular Disease Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Rd, Nanjing, 210029, Jiangsu, P.R. China
| | - Haibo Jiang
- Cerebrovascular Disease Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Rd, Nanjing, 210029, Jiangsu, P.R. China
| | - Feng Qiu
- Cerebrovascular Disease Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Rd, Nanjing, 210029, Jiangsu, P.R. China.
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Prakash R, Vyawahare A, Sakla R, Kumari N, Kumar A, Ansari MM, Jori C, Waseem A, Siddiqui AJ, Khan MA, Robertson AAB, Khan R, Raza SS. NLRP3 Inflammasome-Targeting Nanomicelles for Preventing Ischemia-Reperfusion-Induced Inflammatory Injury. ACS NANO 2023; 17:8680-8693. [PMID: 37102996 DOI: 10.1021/acsnano.3c01760] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Ischemia-reperfusion (I/R) injury is a disease process that affects several vital organs. There is widespread agreement that the NLRP3 inflammasome pathway plays a crucial role in the development of I/R injury. We have developed transferrin-conjugated, pH-responsive nanomicelles for the entrapment of MCC950 drug. These nanomicelles specifically bind to the transferrin receptor 1 (TFR1) expressed on the cells of the blood-brain barrier (BBB) and thus help the cargo to cross the BBB. Furthermore, the therapeutic potential of nanomicelles was assessed using in vitro, in ovo, and in vivo models of I/R injury. Nanomicelles were injected into the common carotid artery (CCA) of a middle cerebral artery occlusion (MCAO) rat model to achieve maximum accretion of nanomicelles into the brain as blood flows toward the brain in the CCA. The current study reveals that the treatment with nanomicelles significantly alleviates the levels of NLRP3 inflammasome biomarkers which were found to be increased in oxygen-glucose deprivation (OGD)-treated SH-SY5Y cells, the I/R-damaged right vitelline artery (RVA) of chick embryos, and the MCAO rat model. The supplementation with nanomicelles significantly enhanced the overall survival of MCAO rats. Overall, nanomicelles exerted therapeutic effects against I/R injury, which might be due to the suppression of the activation of the NLRP3 inflammasome.
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Affiliation(s)
- Ravi Prakash
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | - Akshay Vyawahare
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Rahul Sakla
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Neha Kumari
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | - Ajay Kumar
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Md Meraj Ansari
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Sector 67, Mohali, Punjab 160062, India
| | - Chandrashekhar Jori
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Arshi Waseem
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | - Abu Junaid Siddiqui
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | | | - Avril A B Robertson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
- Department of Stem Cell Biology and Regenerative Medicine, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow 226003, India
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Zhao N, Gao Y, Jia H, Jiang X. Anti-apoptosis effect of traditional Chinese medicine in the treatment of cerebral ischemia-reperfusion injury. Apoptosis 2023; 28:702-729. [PMID: 36892639 DOI: 10.1007/s10495-023-01824-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2023] [Indexed: 03/10/2023]
Abstract
Cerebral ischemia, one of the leading causes of neurological dysfunction of brain cells, muscle dysfunction, and death, brings great harm and challenges to individual health, families, and society. Blood flow disruption causes decreased glucose and oxygen, insufficient to maintain normal brain tissue metabolism, resulting in intracellular calcium overload, oxidative stress, neurotoxicity of excitatory amino acids, and inflammation, ultimately leading to neuronal cell necrosis, apoptosis, or neurological abnormalities. This paper summarizes the specific mechanism of cell injury that apoptosis triggered by reperfusion after cerebral ischemia, the related proteins involved in apoptosis, and the experimental progress of herbal medicine treatment through searching, analyzing, and summarizing the PubMed and Web Of Science databases, which includes active ingredients of herbal medicine, prescriptions, Chinese patent medicines, and herbal extracts, providing a new target or new strategy for drug treatment, and providing a reference for future experimental directions and using them to develop suitable small molecule drugs for clinical application. With the research of anti-apoptosis as the core, it is important to find highly effective, low toxicity, safe and cheap compounds from natural plants and animals with abundant resources to prevent and treat Cerebral ischemia/reperfusion (I/R) injury (CIR) and solve human suffering. In addition, understanding and summarizing the apoptotic mechanism of cerebral ischemia-reperfusion injury, the microscopic mechanism of CIR treatment, and the cellular pathways involved will help to develop new drugs.
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Affiliation(s)
- Nan Zhao
- Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Yuhe Gao
- Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Hongtao Jia
- Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Xicheng Jiang
- Heilongjiang University of Traditional Chinese Medicine, Harbin, China.
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Anti-Inflammatory Effects of Flavonoids in Common Neurological Disorders Associated with Aging. Int J Mol Sci 2023; 24:ijms24054297. [PMID: 36901731 PMCID: PMC10001833 DOI: 10.3390/ijms24054297] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/08/2023] [Accepted: 02/15/2023] [Indexed: 02/24/2023] Open
Abstract
Aging reduces homeostasis and contributes to increasing the risk of brain diseases and death. Some of the principal characteristics are chronic and low-grade inflammation, a general increase in the secretion of proinflammatory cytokines, and inflammatory markers. Aging-related diseases include focal ischemic stroke and neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease (PD). Flavonoids are the most common class of polyphenols and are abundantly found in plant-based foods and beverages. A small group of individual flavonoid molecules (e.g., quercetin, epigallocatechin-3-gallate, and myricetin) has been used to explore the anti-inflammatory effect in vitro studies and in animal models of focal ischemic stroke and AD and PD, and the results show that these molecules reduce the activated neuroglia and several proinflammatory cytokines, and also, inactivate inflammation and inflammasome-related transcription factors. However, the evidence from human studies has been limited. In this review article, we highlight the evidence that individual natural molecules can modulate neuroinflammation in diverse studies from in vitro to animal models to clinical studies of focal ischemic stroke and AD and PD, and we discuss future areas of research that can help researchers to develop new therapeutic agents.
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Yang H, Chen Z, Gao W. EHMT2 affects microglia polarization and aggravates neuronal damage and inflammatory response via regulating HMOX1. Transl Neurosci 2023; 14:20220276. [PMID: 37529171 PMCID: PMC10388136 DOI: 10.1515/tnsci-2022-0276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 02/06/2023] [Accepted: 02/12/2023] [Indexed: 08/03/2023] Open
Abstract
Objective This research was designed to ascertain the function of euchromatic histone lysine methyltransferase 2 (EHMT2) in ischemic stroke-induced neuronal damage and inflammatory response and its regulatory mechanism. Methods Mouse microglia (BV-2 cells) were induced by oxygen glucose deprivation/reoxygenation (OGD/R) to establish a cellular model, and then co-cultured with HT22 hippocampal neurons. After that, HT22 cell viability and apoptosis were evaluated, followed by the measurement of apoptosis-related factors (B-cell lymphoma-2, Bcl-2 associated X, and cleaved-Caspase 3). Meanwhile, the expression of inducible nitric oxide synthase (M1 microglia polarization marker) and arginase 1 (M2 microglia polarization marker) in BV-2 cells was detected, as well as the levels of inflammatory factors (tumor necrosis factor-α, interleukin [IL]-6, IL-10, IL-1β, and IL-4). Additionally, the expression of EHMT2 and heme oxygenase 1 (HMOX1) in BV-2 cells was assessed by quantitative reverse transcription polymerase chain reaction and western blot, and the binding between EHMT2 and HMOX1 was predicted and verified. Results OGD/R treatment led to decreased cell viability and increased cell apoptosis in HT22 cells, and aggravated inflammatory response in BV-2 cells. In OGD/R-induced BV-2 cells, EHMT2 and HMOX1 were increasingly expressed, and knockdown of EHMT2 or HMOX1 in BV-2 cells could inhibit neuronal damage and inflammatory response. Moreover, EHMT2 promoted HMOX1 transcription level by histone methylation. Conclusion Collected evidence showed that down-regulation of EHMT2 relieved neuronal damage and inflammatory response by inhibiting HMOX1 expression.
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Affiliation(s)
- Huaitao Yang
- Department of Neurosurgery, Jingzhou Hospital Affiliated to Yangtze University, No. 26, Chuyuan Ave, Jingzhou District, Jingzhou, Hubei 434020, P.R. China
| | - Zhifang Chen
- Department of Obstetrics and Gynecology, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Wenhong Gao
- Department of Neurosurgery, Jingzhou Hospital Affiliated to Yangtze University, No. 26, Chuyuan Ave, Jingzhou District, Jingzhou, Hubei 434020, P.R. China
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Genipin Attenuates Diabetic Cognitive Impairment by Reducing Lipid Accumulation and Promoting Mitochondrial Fusion via FABP4/Mfn1 Signaling in Microglia. Antioxidants (Basel) 2022; 12:antiox12010074. [PMID: 36670935 PMCID: PMC9854533 DOI: 10.3390/antiox12010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022] Open
Abstract
The present study was conducted to evaluate the effect of genipin (GEN) on the microglia of diabetic cognitive impairment and explore its potential mechanism. Diabetic mice were induced by STZ/HFD, while GEN was intragastrically and intraventricularly treated. The human microglia cell HMC3 was induced by LPS/HG/PA. As a result, GEN attenuated diabetic symptoms and diabetic cognitive impairment-related behavior in novel object recognition, Morris water maze and passive avoidance tests. GEN inhibited M1 microglia polarization, lipid accumulation, oxidative stress and promoted mitochondrial fusion via FABP4/Mfn1. FABP4 overexpression, Mfn1 overexpression, selective FABP4 inhibitor BMS, and Mfn1 SiRNA were employed for investigating the mechanism. The inhibitory effect of GEN on ROS may be associated with NOX2 signaling and the translocation of p47phox/p67phox to the cell membrane. With the ROS scavenger NAC, it was proved that ROS participated in GEN-mediated inflammation and lipid accumulation. GEN inhibited the phosphorylation and nucleus translocation of NF-κB. GEN inhibited the ubiquitination of Mfn1, which was mediated by the E3 ligase Hrd1. GEN also enhanced microglia phagocytosis. Molecular docking predicted that GEN may interact with FABP4 by hydrogen bond at the S53 and R78 residues. In conclusion, GEN attenuated diabetic cognitive impairment by inhibiting inflammation, lipid accumulation and promoting mitochondrial fusion via FABP4/Mfn1 signaling.
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Zhao Y, Cao Y, Yang X, Guo M, Wang C, Zhang Z, Zhang Q, Huang X, Sun M, Xi C, Tangthianchaichana J, Bai J, Du S, Lu Y. Network pharmacology-based prediction and verification of the active ingredients and potential targets of Huagan Decoction for reflux esophagitis. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115629. [PMID: 35988839 DOI: 10.1016/j.jep.2022.115629] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/19/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Huagan Decoction (HGD), a famous traditional Chinese medicine (TCM) formula, has been widely used in the treatment of reflux esophagitis (RE). However, its effective compounds, potential targets and molecular mechanism remain unclear. AIM OF THE STUDY To investigate effective compounds, potential targets and molecular mechanism of HGD against RE by using network pharmacology combined with in vitro validation, with the aims of observing the action of HGD and exploring new therapeutic strategies for RE treatment. MATERIALS AND METHODS Effective compounds and potential targets of HGD, as well as related genes of RE, were collected from public databases. Pharmacological clustering and Gene Ontology (GO) enrichment analysis were applied to find targets that involving in the anti-inflammatory module. The pathways were drawn using Cytoscape 3.8.0. Important ingredients, potential targets, and signaling pathways were determined through the construction of protein-protein interaction (PPI), GO and Kyoto Encyclopedia of Genes and Genomes (KEGG). Subsequently, cell experiments were carried out. RESULTS A total of 54 active ingredients and 240 RE-related gene targets of HGD were identified. The active compound-target network was visualized and pharmacological clustering further sorted 53 proteins that involve in the regulation of inflammatory responses. GO analysis confirmed the classification was statistically significant. Analysis of compound-target network revealed that quercetin and geniposide may be key ingredients for the anti-inflammatory effect of HGD against RE. The potential targets regulated by HGD are IL-6, IL-1β, PTGS2, AKT1, TNF-α, MAPK1, IL-8, IL-10, CCL2 and MAPK3. In vitro experiment showed that quercetin and geniposide could inhibit the inflammatory response of HET-1A cells through p38MAPK/NF-κB signaling pathway, which was consistent with the prediction by the network pharmacology approach. CONCLUSIONS Geniposide and quercetin could be effective therapeutic ingredients for the HGD against RE. They play anti-inflammatory effects via down-regulating the pro-inflammatory cytokines and the conduction of p38MAPK/NF-κB signal. This research provides a comprehensive study on the active components, potential targets, and molecular mechanisms of HGD against RE. Moreover, the study supplies a feasible approach to reveal the mechanisms of TCM formula.
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Affiliation(s)
- Yueying Zhao
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Yanfeng Cao
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Xueying Yang
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Mingxue Guo
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Changhai Wang
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Zekang Zhang
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Qing Zhang
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Xingyue Huang
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Meng Sun
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Cheng Xi
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | | | - Jie Bai
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Shouying Du
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Yang Lu
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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Li B, Wang M, Chen S, Li M, Zeng J, Wu S, Tu Y, Li Y, Zhang R, Huang F, Tong X. Baicalin Mitigates the Neuroinflammation through the TLR4/MyD88/NF- κB and MAPK Pathways in LPS-Stimulated BV-2 Microglia. BIOMED RESEARCH INTERNATIONAL 2022; 2022:3263446. [PMID: 36408278 PMCID: PMC9668451 DOI: 10.1155/2022/3263446] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/22/2022] [Indexed: 09/25/2023]
Abstract
Baicalin (BA) is a major flavone from Scutellaria baicalensis Georgi and has showed significant curative effects in Parkinson's and Alzheimer's diseases. In the present study, we investigated the effects of BA on antineuroinflammation and related signaling cascade in lipopolysaccharide- (LPS-) induced BV-2 microglial model. The results showed that BA significantly attenuated inflammatory mediators (NO, iNOS, IL-1β, COX-2, and PGE2) and suppressed the expression of miR-155. More crucially, BA could regulate the expression of related proteins in Toll-like receptor 4 (TLR4)/myeloid differentiation protein 88 (MyD88)/nuclear factor κB (NF-κB) pathway and suppress the phosphorylation of mitogen-activated protein kinase (MAPK) family. In addition, molecular docking analysis indicated that BA binds to the amino acids Lie 63 and Tyr 65 of TLR4 by π-σ and π-π T-shaped interaction. Thus, BA suppressed the LPS-stimulated neuroinflammation in BV-2 microglia by blocking the TLR4-mediated signal transduction through TLR4/MyD88/NF-κB and MAPK pathways and inhibiting the miR-155 expression. Our findings demonstrated that BA could be a valuable therapeutic for the treatment of neuroinflammation and neurodegenerative diseases.
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Affiliation(s)
- Baojing Li
- The First Affiliated Hospital of Yunnan University of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
- Yunnan Key Laboratory of Southern Medicinal Utilization, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Mingming Wang
- Yunnan Key Laboratory of Southern Medicinal Utilization, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Shuai Chen
- Yunnan Key Laboratory of Southern Medicinal Utilization, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Manping Li
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Jing Zeng
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Saichun Wu
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Yuanqing Tu
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Yanping Li
- Yunnan Key Laboratory of Southern Medicinal Utilization, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Rongping Zhang
- Yunnan Key Laboratory of Southern Medicinal Utilization, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Feng Huang
- The First Affiliated Hospital of Yunnan University of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
- Yunnan Key Laboratory of Southern Medicinal Utilization, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiaoyun Tong
- The First Affiliated Hospital of Yunnan University of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
- Yunnan Key Laboratory of Southern Medicinal Utilization, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
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Yang H, Chen J. Bone marrow mesenchymal stem cell-derived exosomes carrying long noncoding RNA ZFAS1 alleviate oxidative stress and inflammation in ischemic stroke by inhibiting microRNA-15a-5p. Metab Brain Dis 2022; 37:2545-2557. [PMID: 35907132 DOI: 10.1007/s11011-022-00997-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/27/2022] [Indexed: 10/16/2022]
Abstract
BACKGROUND/AIM Bone marrow mesenchymal stem cell (BMSC)-derived exosomes can prevent oxidative stress and inflammation in cerebral ischemia-reperfusion injury. This study intended to assess influences of BMSC-released exosomes on oxidative stress and inflammation following ischemic stroke. METHODS In vitro and in vivo models were developed using oxygen-glucose deprivation/reperfusion (OGD/R) and middle cerebral artery occlusion (MCAO), respectively. After exosome isolation, co-culture experiments of BMSCs or BMSC-derived exosomes and OGD/R-treated BV-2 cells were implemented to evaluate the impacts of BMSCs or BMSC-secreted exosomes on proliferation, inflammation, oxidative stress, and apoptosis. The gain-of-function experiments of ZFAS1 or microRNA (miR)-15a-5p were conducted to investigate the associated mechanisms. Besides, MCAO mice were injected with exosomes from BMSCs overexpressing ZFAS1 for in vivo verification. The binding of ZFAS1 to miR-15a-5p was assessed through dual-luciferase reporter gene assay. RESULTS Co-culture with BMSCs accelerated proliferation and downregulated IL-1β, IL-6, and TNF-α in OGD/R-exposed BV-2 cells, accompanied by increased SOD level and decreased MDA level and apoptosis, all of which were nullified by inhibiting exosome secretion. Mechanistically, ZFAS1 bound to miR-15a-5p to negatively orchestrate its expression. In addition, BMSC-released exosomes or BMSC-secreted exosomal ZFAS1 augmented proliferation but reduced oxidative stress, apoptosis, and inflammation in OGD/R-exposed BV-2 cells, whereas these impacts of BMSC-released exosomal ZFAS1 were nullified by overexpressing miR-15a-5p. Moreover, BMSC-derived exosomal ZFAS1 diminished MCAO-induced oxidative stress, cerebral infarction, and inflammation in mice. CONCLUSIONS Conclusively, BMSC-released exosomes might carry long noncoding RNA ZFAS1 to curb oxidative stress and inflammation related to ischemic stroke, which was possibly realized through miR-15a-5p inhibition.
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Affiliation(s)
- Huaitao Yang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, No. 169, Donghu Road, Wuchang District, 430071, Wuhan, Hubei, P.R. China
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, No. 169, Donghu Road, Wuchang District, 430071, Wuhan, Hubei, P.R. China.
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Cheng X, Hu J, Liu X, Tibenda JJ, Wang X, Zhao Q. Therapeutic targets by traditional Chinese medicine for ischemia-reperfusion injury induced apoptosis on cardiovascular and cerebrovascular diseases. Front Pharmacol 2022; 13:934256. [PMID: 36060007 PMCID: PMC9437626 DOI: 10.3389/fphar.2022.934256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 06/30/2022] [Indexed: 12/02/2022] Open
Abstract
Traditional Chinese medicine (TCM) has a significant role in treating and preventing human diseases. Ischemic heart and cerebrovascular injuries are two types of diseases with different clinical manifestations with high prevalence and incidence. In recent years, it has been reported that many TCM has beneficial effects on ischemic diseases through the inhibition of apoptosis, which is the key target to treat myocardial and cerebral ischemia. This review provides a comprehensive summary of the mechanisms of various TCMs in treating ischemic cardiovascular and cerebrovascular diseases through anti-apoptotic targets and pathways. However, clinical investigations into elucidating the pharmacodynamic ingredients of TCM are still lacking, which should be further demystified in the future. Overall, the inhibition of apoptosis by TCM may be an effective strategy for treating ischemic cardio-cerebrovascular diseases.
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Affiliation(s)
- Xiuli Cheng
- Department of Pharmacy, People’s Hospital of Ningxia Hui Autonomous Region, Yinchuan, China
| | - Jin Hu
- Department of Preparation Center, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Xiaofeng Liu
- Department of Pharmacy, People’s Hospital of Ningxia Hui Autonomous Region, Yinchuan, China
| | | | - Xiaobo Wang
- Research Institute of Integrated TCM and Western Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiaobo Wang, ; Qipeng Zhao,
| | - Qipeng Zhao
- School of Pharmacy, Ningxia Medical University, Yinchuan, China
- Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education (Ningxia Medical University), Yinchuan, China
- *Correspondence: Xiaobo Wang, ; Qipeng Zhao,
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Zileuton, a 5-Lipoxygenase Inhibitor, Attenuates Haemolysate-Induced BV-2 Cell Activation by Suppressing the MyD88/NF-κB Pathway. Int J Mol Sci 2022; 23:ijms23094910. [PMID: 35563304 PMCID: PMC9104905 DOI: 10.3390/ijms23094910] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 02/04/2023] Open
Abstract
M1 microglia induce neuroinflammation-related neuronal death in animal models of spontaneous subarachnoid haemorrhage. Zileuton is a 5-lipoxygenase inhibitor that reduces the levels of downstream pro-inflammatory cytokines. This study aimed to investigate whether zileuton inhibits microglial activation and describe its underlying mechanisms. BV-2 cells were exposed to 1 mg/mL haemolysate for 30 min, followed by treatment with different concentrations (5, 10, 15, or 20 μM) of zileuton for 24 h. The cells were then assessed for viability, polarisation, and protein expression levels. Haemolysate increases the viability of BV-2 cells and induces M1 polarisation. Subsequent exposure to high concentrations of zileuton decreased the viability of BV-2 cells, shifted the polarisation to the M2 phenotype, suppressed the expression of 5-lipoxygenase, decreased tumour necrosis factor α levels, and increased interleukin-10 levels. Furthermore, high concentrations of zileuton suppressed the expression of myeloid differentiation primary response protein 88 and reduced the phosphorylated-nuclear factor-kappa B (NF-kB)/NF-kB ratio. Therefore, phenotype reversal from M1 to M2 is a possible mechanism by which zileuton attenuates haemolysate-induced neuroinflammation after spontaneous subarachnoid haemorrhage.
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