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Zhang JJ, Mao-Mao, Shao MM, Wang MC. Therapeutic potential of natural flavonoids in pulmonary arterial hypertension: A review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155535. [PMID: 38537442 DOI: 10.1016/j.phymed.2024.155535] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/06/2024] [Accepted: 03/12/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Pulmonary arterial hypertension (PAH) is a fatal disease caused by pulmonary vascular remodeling, with a high incidence and mortality. At present, many clinical drugs for treating PAH mainly exert effects by relaxing the pulmonary artery, with limited therapeutic effects, so the search for viable therapeutic agents continues uninterrupted. In recent years, natural flavonoids have shown promising potential in the treatment of cardiovascular diseases. It is necessary to comprehensively elucidate the potential of natural flavonoids to combat PAH. PURPOSE To evaluate the potential of natural flavonoids to hinder or slow down the occurrence and development of PAH, and to identify promising drug discovery candidates. METHODS Literature was collected from PubMed, Science Direct, Web of science, CNKI databases and Google scholar. The search terms used included "pulmonary arterial hypertension", "pulmonary hypertension", "natural products", "natural flavonoids", "traditional chinese medicine", etc., and several combinations of these keywords. RESULTS The resources, structural characteristics, mechanisms, potential and prospect strategies of natural flavonoids for treating PAH were summarized. Natural flavonoids offer different solutions as possible treatments for PAH. These mechanisms may involve various pathways and molecular targets related to the pathogenesis of PAH, such as inflammation, oxidative stress, vascular remodeling, genetic, ion channels, cell proliferation and autophagy. In addition, prospect strategies of natural flavonoids for anti-PAH including structural modification and nanomaterial delivery systems have been explored. This review suggests that the potential of natural flavonoids as alternative therapeutic agents in the prevention and treatment of PAH holds promise for future research and clinical applications. CONCLUSION Despite displaying the enormous potential of flavonoids in PAH, some limitations need to be further explored. Firstly, using advanced drug discovery tools, including computer-aided design and high-throughput screening, to further investigate the safety, biological activity, and precise mechanism of action of flavonoids. Secondly, exploring the structural modifications of these compounds is expected to optimize their efficacy. Lastly, it is necessary to conduct well controlled clinical trials and a comprehensive evaluation of potential side effects to determine their effectiveness and safety.
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Affiliation(s)
- Jin-Jing Zhang
- Department of pharmacy, Affiliated Cixi Hospital, Wenzhou Medical University, China
| | - Mao-Mao
- Department of pharmacy, Affiliated Cixi Hospital, Wenzhou Medical University, China
| | - Min-Min Shao
- Department of pharmacy, Affiliated Cixi Hospital, Wenzhou Medical University, China
| | - Meng-Chuan Wang
- Department of pharmacy, Affiliated Cixi Hospital, Wenzhou Medical University, China.
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2
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Dignam JP, Sharma S, Stasinopoulos I, MacLean MR. Pulmonary arterial hypertension: Sex matters. Br J Pharmacol 2024; 181:938-966. [PMID: 37939796 DOI: 10.1111/bph.16277] [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: 03/01/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/10/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a complex disease of multifactorial origin. While registries have demonstrated that women are more susceptible to the disease, females with PAH have superior right ventricle (RV) function and a better prognosis than their male counterparts, a phenomenon referred to as the 'estrogen paradox'. Numerous pre-clinical studies have investigated the involvement of sex hormones in PAH pathobiology, often with conflicting results. However, recent advances suggest that abnormal estrogen synthesis, metabolism and signalling underpin the sexual dimorphism of this disease. Other sex hormones, such as progesterone, testosterone and dehydroepiandrosterone may also play a role. Several non-hormonal factor including sex chromosomes and epigenetics have also been implicated. Though the underlying pathophysiological mechanisms are complex, several compounds that modulate sex hormones levels and signalling are under investigation in PAH patients. Further elucidation of the estrogen paradox will set the stage for the identification of additional therapeutic targets for this disease.
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Affiliation(s)
- Joshua P Dignam
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, Scotland, UK
| | - Smriti Sharma
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, Scotland, UK
| | - Ioannis Stasinopoulos
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, Scotland, UK
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, Scotland, UK
| | - Margaret R MacLean
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, Scotland, UK
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3
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Luo H, Yan J, Gong R, Zhang D, Zhou X, Wang X. Identification of biomarkers and pathways for the SARS-CoV-2 infections in obstructive sleep apnea patients based on machine learning and proteomic analysis. BMC Pulm Med 2024; 24:112. [PMID: 38443855 PMCID: PMC10913609 DOI: 10.1186/s12890-024-02921-1] [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: 10/12/2023] [Accepted: 02/22/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND The prevalence of obstructive sleep apnea (OSA) was found to be higher in individuals following COVID-19 infection. However, the intricate mechanisms that underscore this concomitance remain partially elucidated. The aim of this study was to delve deeper into the molecular mechanisms that underpin this comorbidity. METHODS We acquired gene expression profiles for COVID-19 (GSE157103) and OSA (GSE75097) from the Gene Expression Omnibus (GEO) database. Upon identifying shared feature genes between OSA and COVID-19 utilizing LASSO, Random forest and Support vector machines algorithms, we advanced to functional annotation, analysis of protein-protein interaction networks, module construction, and identification of pivotal genes. Furthermore, we established regulatory networks encompassing transcription factor (TF)-gene and TF-miRNA interactions, and searched for promising drug targets. Subsequently, the expression levels of pivotal genes were validated through proteomics data from COVID-19 cases. RESULTS Fourteen feature genes shared between OSA and COVID-19 were selected for further investigation. Through functional annotation, it was indicated that metabolic pathways play a role in the pathogenesis of both disorders. Subsequently, employing the cytoHubba plugin, ten hub genes were recognized, namely TP53, CCND1, MDM2, RB1, HIF1A, EP300, STAT3, CDK2, HSP90AA1, and PPARG. The finding of proteomics unveiled a substantial augmentation in the expression level of HSP90AA1 in COVID-19 patient samples, especially in severe conditions. CONCLUSIONS Our investigation illuminate a mutual pathogenic mechanism that underlies both OSA and COVID-19, which may provide novel perspectives for future investigations into the underlying mechanisms.
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Affiliation(s)
- Hong Luo
- Department of Tuberculosis and Respiratory, Wuhan Jinyintan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jisong Yan
- Department of Tuberculosis and Respiratory, Wuhan Jinyintan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rui Gong
- Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China (USTC), Hefei, Anhui, China
| | - Dingyu Zhang
- Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China (USTC), Hefei, Anhui, China
- Center for Translational Medicine, Wuhan Jinyintan Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Xia Zhou
- Department of Tuberculosis and Respiratory, Wuhan Jinyintan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Clinical Research Center for Infectious Diseases, Wuhan, China.
- Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences, Wuhan, China.
- Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Wuhan, China.
| | - Xianguang Wang
- Department of Tuberculosis and Respiratory, Wuhan Jinyintan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Clinical Research Center for Infectious Diseases, Wuhan, China.
- Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences, Wuhan, China.
- Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Wuhan, China.
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4
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Jiang HX, Wang XD, Wang HX, Liu T. Baicalin attenuates pulmonary vascular remodeling by inhibiting calpain-1 mediated endothelial-to-mesenchymal transition. Heliyon 2023; 9:e23076. [PMID: 38144352 PMCID: PMC10746466 DOI: 10.1016/j.heliyon.2023.e23076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/26/2023] Open
Abstract
Background Previous studies have demonstrated the beneficial effect of baicalin on pulmonary arterial hypertension (PAH), but the mechanism is unclear. Aim The aim of the present study was to evaluate the effect of baicalin on pulmonary vascular remodeling (PVR) with a focus on calpain-1-mediated endothelial-to-mesenchymal transition (EndMT). Methods PAH was induced by intraperitoneal injection of monocrotaline (MCT) in rats and hypoxia in calpain-1 gene knockout (Capn1-/-) and wild-type C57BL/6 mice. An in vitro PVR model was established in PASMCs and HPAECs. Results The data showed that baicalin treatment and calpain-1 inhibition alleviated MCT and hypoxia-induced increases in right ventricular systolic pressure (RVSP), prevented right ventricle hypertrophy and PVR, and attenuated cardiopulmonary fibrosis. Moreover, baicalin ameliorated PAH-induced EndMT, as evidenced by the suppressed expression of mesenchymal markers vimentin, and α-SMA and restored expression of endothelial markers CD31, and VE-cadherin. In vitro studies showed that baicalin treatment blocked TGF-β1-induced EndMT in HPAECs and abolished hypoxia-induced PASMC proliferation and migration. All the beneficial effects of baicalin on PVR in vitro and in vivo were accompanied by suppressed calpain-1 expression. Further study demonstrated that baicalin treatment and calpain-1 inhibition inhibited the enhanced expression of PI3K and p-AKT both in vitro and in vivo. Conclusions In conclusion, baicalin treatment attenuates PVR by inhibiting calpain-1 and PI3K/Akt-mediated EndMT.
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Affiliation(s)
- He-xi Jiang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Xiao-di Wang
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, 121001, China
| | - Hong-xin Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, 121000, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, 300211, China
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5
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Fujiwara T, Takeda N, Hara H, Ishii S, Numata G, Tokiwa H, Katoh M, Maemura S, Suzuki T, Takiguchi H, Yanase T, Kubota Y, Nomura S, Hatano M, Ueda K, Harada M, Toko H, Takimoto E, Akazawa H, Morita H, Nishimura S, Komuro I. PGC-1α-mediated angiogenesis prevents pulmonary hypertension in mice. JCI Insight 2023; 8:e162632. [PMID: 37681410 PMCID: PMC10544206 DOI: 10.1172/jci.insight.162632] [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: 06/13/2022] [Accepted: 07/25/2023] [Indexed: 09/09/2023] Open
Abstract
Pulmonary hypertension (PH) is a life-threatening disease characterized by a progressive narrowing of pulmonary arterioles. Although VEGF is highly expressed in lung of patients with PH and in animal PH models, the involvement of angiogenesis remains elusive. To clarify the pathophysiological function of angiogenesis in PH, we compared the angiogenic response in hypoxia (Hx) and SU5416 (a VEGFR2 inhibitor) plus Hx (SuHx) mouse PH models using 3D imaging. The 3D imaging analysis revealed an angiogenic response in the lung of the Hx-PH, but not of the severer SuHx-PH model. Selective VEGFR2 inhibition with cabozantinib plus Hx in mice also suppressed angiogenic response and exacerbated Hx-PH to the same extent as SuHx. Expression of endothelial proliferator-activated receptor γ coactivator 1α (PGC-1α) increased along with angiogenesis in lung of Hx-PH but not SuHx mice. In pulmonary endothelial cell-specific Ppargc1a-KO mice, the Hx-induced angiogenesis was suppressed, and PH was exacerbated along with increased oxidative stress, cellular senescence, and DNA damage. By contrast, treatment with baicalin, a flavonoid enhancing PGC-1α activity in endothelial cells, ameliorated Hx-PH with increased Vegfa expression and angiogenesis. Pulmonary endothelial PGC-1α-mediated angiogenesis is essential for adaptive responses to Hx and might represent a potential therapeutic target for PH.
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Affiliation(s)
- Takayuki Fujiwara
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
- Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Norifumi Takeda
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Hironori Hara
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
- Department of Advanced Translational Research and Medicine in Management of Pulmonary Hypertension, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Satoshi Ishii
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Genri Numata
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
- Department of Advanced Translational Research and Medicine in Management of Pulmonary Hypertension, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hiroyuki Tokiwa
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Manami Katoh
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Sonoko Maemura
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Takaaki Suzuki
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Hiroshi Takiguchi
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Tomonobu Yanase
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Seitaro Nomura
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
- Department of Therapeutic Strategy for Heart Failure, and
| | - Masaru Hatano
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Kazutaka Ueda
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Mutsuo Harada
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
- Department of Advanced Clinical Science and Therapeutics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Haruhiro Toko
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Eiki Takimoto
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Hiroshi Akazawa
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Hiroyuki Morita
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Satoshi Nishimura
- Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
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6
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Yang X, Yang Y, Liu K, Zhang C. Traditional Chinese medicine monomers: Targeting pulmonary artery smooth muscle cells proliferation to treat pulmonary hypertension. Heliyon 2023; 9:e14916. [PMID: 37128338 PMCID: PMC10147991 DOI: 10.1016/j.heliyon.2023.e14916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 02/01/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Pulmonary hypertension (PH) is a complex multifactorial disease characterized by increased pulmonary vascular resistance and pulmonary vascular remodeling (PVR), with high morbidity, disability, and mortality. The abnormal proliferation of pulmonary artery smooth muscle cells (PASMCs) is the main pathological change causing PVR. At present, clinical treatment drugs for PH are limited, which can only improve symptoms and reduce hospitalization but cannot delay disease progression and reduce survival rate. In recent years, numerous studies have shown that traditional Chinese medicine monomers (TCMs) inhibit excessive proliferation of PASMCs resulting in alleviating PVR through multiple channels and multiple targets, which has attracted more and more attention in the treatment of PH. In this paper, the experimental evidence of inhibiting PASMCs proliferation by TCMs was summarized to provide some directions for the future development of these mentioned TCMs as anti-PH drugs in clinical.
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7
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Esophageal wound healing by aligned smooth muscle cell-laden nanofibrous patch. Mater Today Bio 2023; 19:100564. [PMID: 36747583 PMCID: PMC9898453 DOI: 10.1016/j.mtbio.2023.100564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023] Open
Abstract
The esophagus exhibits peristalsis via contraction of circularly and longitudinally aligned smooth muscles, and esophageal replacement is required if there is a critical-sized wound. In this study, we proposed to reconstruct esophageal tissues using cell electrospinning (CE), an advanced technique for encapsulating living cells into fibers that allows control of the direction of fiber deposition. After treatment with transforming growth factor-β, mesenchymal stem cell-derived smooth muscle cells (SMCs) were utilized for cell electrospinning or three-dimensional bioprinting to compare the effects of aligned micropatterns on cell morphology. CE resulted in SMCs with uniaxially arranged and elongated cell morphology with upregulated expression levels of SMC-specific markers, including connexin 43, smooth muscle protein 22 alpha (SM22α), desmin, and smoothelin. When SMC-laden nanofibrous patches were transplanted into a rat esophageal defect model, the SMC patch promoted regeneration of esophageal wounds with an increased number of newly formed blood vessels and enhanced the SMC-specific markers of SM22α and vimentin. Taken together, CE with its advantages, such as guidance of highly elongated, aligned cell morphology and accelerated SMC differentiation, can be an efficient strategy to reconstruct smooth muscle tissues and treat esophageal perforation.
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8
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Wang D, Li Y. Pharmacological effects of baicalin in lung diseases. Front Pharmacol 2023; 14:1188202. [PMID: 37168996 PMCID: PMC10164968 DOI: 10.3389/fphar.2023.1188202] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 04/10/2023] [Indexed: 05/13/2023] Open
Abstract
The flavonoids baicalin and baicalein were discovered in the root of Scutellaria baicalensis Georgi and are primarily used in traditional Chinese medicine, herbal supplements and healthcare. Recently, accumulated investigations have demonstrated the therapeutic benefits of baicalin in treating various lung diseases due to its antioxidant, anti-inflammatory, immunomodulatory, antiapoptotic, anticancer, and antiviral effects. In this review, the PubMed database and ClinicalTrials website were searched with the search string "baicalin" and "lung" for articles published between September 1970 and March 2023. We summarized the therapeutic role that baicalin plays in a variety of lung diseases, such as chronic obstructive pulmonary disease, asthma, pulmonary fibrosis, pulmonary hypertension, pulmonary infections, acute lung injury/acute respiratory distress syndrome, and lung cancer. We also discussed the underlying mechanisms of baicalin targeting in these lung diseases.
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Affiliation(s)
- Duoning Wang
- Chengdu Hi-tech Nanxili Jiuzheng Clinic, Chengdu, Sichuan, China
| | - Yi Li
- Chengdu Hi-tech Nanxili Jiuzheng Clinic, Chengdu, Sichuan, China
- *Correspondence: Yi Li, /
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9
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Mechanistic and therapeutic perspectives of baicalin and baicalein on pulmonary hypertension: A comprehensive review. Biomed Pharmacother 2022; 151:113191. [PMID: 35643068 DOI: 10.1016/j.biopha.2022.113191] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/18/2022] [Accepted: 05/22/2022] [Indexed: 11/20/2022] Open
Abstract
Pulmonary hypertension (PH) is a chronic and fatal disease, for which new therapeutic drugs and approaches are needed urgently. Baicalein and baicalin, the active compounds of the traditional Chinese medicine, Scutellaria baicalensis Georgi, exhibit a wide range of pharmacological activities. Numerous studies involving in vitro and in vivo models of PH have revealed that the treatment with baicalin and baicalein may be effective. This review summarizes the potential mechanisms driving the beneficial effects of baicalin and baicalein treatment on PH, including anti-inflammatory response, inhibition of pulmonary smooth muscle cell proliferation and endothelial-to-mesenchymal transformation, stabilization of the extracellular matrix, and mitigation of oxidative stress. The pharmacokinetics of these compounds have also been reviewed. The therapeutic potential of baicalin and baicalein warrants their continued study as natural treatments for PH.
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10
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Yang CE, Wang YN, Hua MR, Miao H, Zhao YY, Cao G. Aryl hydrocarbon receptor: From pathogenesis to therapeutic targets in aging-related tissue fibrosis. Ageing Res Rev 2022; 79:101662. [PMID: 35688331 DOI: 10.1016/j.arr.2022.101662] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 04/22/2022] [Accepted: 06/02/2022] [Indexed: 11/27/2022]
Abstract
Aging promotes chronic inflammation, which contributes to fibrosis and decreases organ function. Fibrosis, the excessive synthesis and deposition of extracellular matrix components, is the main cause of most chronic diseases including aging-related organ failure. Organ fibrosis in the heart, liver, and kidneys is the final manifestation of many chronic diseases. The aryl hydrocarbon receptor (AHR) is a cytoplasmic receptor and highly conserved transcription factor that is activated by a variety of small-molecule ligands to affect a wide array of tissue homeostasis functions. In recent years, mounting evidence has revealed that AHR plays an important role in multi-organ fibrosis initiation, progression, and therapy. In this review, we summarise the relationship between AHR and the pathogenesis of aging-related tissue fibrosis, and further discuss how AHR modulates tissue fibrosis by regulating transforming growth factor-β signalling, immune response, and mitochondrial function, which may offer novel targets for the prevention and treatment of this condition.
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Affiliation(s)
- Chang-E Yang
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, Shaanxi 710069, China
| | - Yan-Ni Wang
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, Shaanxi 710069, China
| | - Meng-Ru Hua
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, Shaanxi 710069, China
| | - Hua Miao
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, Shaanxi 710069, China.
| | - Ying-Yong Zhao
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, Shaanxi 710069, China.
| | - Gang Cao
- School of Pharmacy, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, Zhejiang 310053, China.
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11
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Yu HX, Feng Z, Lin W, Yang K, Liu RQ, Li JQ, Liu XY, Pei M, Yang HT. Ongoing Clinical Trials in Aging-Related Tissue Fibrosis and New Findings Related to AhR Pathways. Aging Dis 2022; 13:732-752. [PMID: 35656117 PMCID: PMC9116921 DOI: 10.14336/ad.2021.1105] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/05/2021] [Indexed: 11/06/2022] Open
Abstract
Fibrosis is a pathological manifestation of wound healing that replaces dead/damaged tissue with collagen-rich scar tissue to maintain homeostasis, and complications from fibrosis contribute to nearly half of all deaths in the industrialized world. Ageing is closely associated with a progressive decline in organ function, and the prevalence of tissue fibrosis dramatically increases with age. Despite the heavy clinical and economic burden of organ fibrosis as the population ages, to date, there is a paucity of therapeutic strategies that are specifically designed to slow fibrosis. Aryl hydrocarbon receptor (AhR) is an environment-sensing transcription factor that exacerbates aging phenotypes in different tissues that has been brought back into the spotlight again with economic development since AhR could interact with persistent organic pollutants derived from incomplete waste combustion. In addition, gut microbiota dysbiosis plays a pivotal role in the pathogenesis of numerous diseases, and microbiota-associated tryptophan metabolites are dedicated contributors to fibrogenesis by acting as AhR ligands. Therefore, a better understanding of the effects of tryptophan metabolites on fibrosis modulation through AhR may facilitate the exploitation of new therapeutic avenues for patients with organ fibrosis. In this review, we primarily focus on how tryptophan-derived metabolites are involved in renal fibrosis, idiopathic pulmonary fibrosis, hepatic fibrosis and cardiac fibrosis. Moreover, a series of ongoing clinical trials are highlighted.
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Affiliation(s)
- Hang-Xing Yu
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Zhe Feng
- 3Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - Wei Lin
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Kang Yang
- 4Kidney Disease Treatment Center, The first affiliated hospital of Henan university of CM, Zhengzhou, Henan, China
| | - Rui-Qi Liu
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Jia-Qi Li
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Xin-Yue Liu
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Ming Pei
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Hong-Tao Yang
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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12
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Zhu T, Wang X, Zheng Z, Quan J, Liu Y, Wang Y, Liu T, Liu X, Wang M, Zhang Z. ZIP12 Contributes to Hypoxic Pulmonary Hypertension by Driving Phenotypic Switching of Pulmonary Artery Smooth Muscle Cells. J Cardiovasc Pharmacol 2022; 79:235-243. [PMID: 34694243 DOI: 10.1097/fjc.0000000000001156] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/27/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT ZIP12, a plasmalemmal zinc transporter, reportedly promotes pulmonary vascular remodeling (PVR) by enhancing proliferation of pulmonary artery smooth muscle cells (PASMCs). However, the mechanisms of ZIP12 facilitating PASMCs proliferation remain incompletely appreciated. It has been acknowledged that proliferation-predisposing phenotypic switching of PASMCs can lead to PVR. Given that hypoxia triggers phenotypic switching of PASMCs and ZIP12 mediates PVR, this study aims to explore whether ZIP12-mediated phenotypic switching of PASMCs contributes to hypoxia-induced PVR. Rats were exposed to hypoxia (10% O2) for 3 weeks to induce PVR, and primary rat PASMCs were cultured under hypoxic condition (3% O2) for 48 hours to induce proliferation. Immunofluorescence, quantitative reverse transcription-polymerase chain reaction, and Western blot analysis were performed to detect the expression of target mRNAs and proteins. EdU incorporation and 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay were conducted to measure the proliferation of PASMCs. Hypoxia upregulated ZIP12 expression (both mRNA and protein) in pulmonary arteries and PASMCs. Knockdown of ZIP12 inhibited phenotypic switching of PASMCs induced by hypoxia. We propose that HIF-1α/ZIP12/pERK pathway could represent a novel mechanism underlying hypoxia-induced phenotypic switching of PASMCs. Therapeutic targeting of ZIP12 could be exploited to treat PVR.
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Affiliation(s)
- Tiantian Zhu
- Department of Clinical Pharmacy, College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
| | - Xuan Wang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China ; and
| | - Zijie Zheng
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China ; and
| | - Jinping Quan
- Department of Clinical Pharmacy, College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
| | - Yuhao Liu
- Department of Clinical Pharmacy, College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
| | - Yuting Wang
- Department of Clinical Pharmacy, College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
| | - Tianheng Liu
- Department of Clinical Pharmacy, College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
| | - Xu Liu
- Department of Clinical Pharmacy, College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
| | - Mi Wang
- The Department of Cardiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zheng Zhang
- Department of Clinical Pharmacy, College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410078, China ; and
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13
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Xue Z, Li Y, Zhou M, Liu Z, Fan G, Wang X, Zhu Y, Yang J. Traditional Herbal Medicine Discovery for the Treatment and Prevention of Pulmonary Arterial Hypertension. Front Pharmacol 2021; 12:720873. [PMID: 34899290 PMCID: PMC8660120 DOI: 10.3389/fphar.2021.720873] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/11/2021] [Indexed: 12/17/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is characterized by pulmonary artery remodeling that may subsequently culminate in right heart failure and premature death. Although there are currently both non-pharmacological (lung transplantation, etc.) and pharmacological (Sildenafil, Bosentan, and new oral drugs on trial) therapies available, PAH remains a serious and fatal pulmonary disease. As a unique medical treatment, traditional herbal medicine (THM) treatment has gradually exerted its advantages in treating PAH worldwide through a multi-level and multi-target approach. Additionally, the potential mechanisms of THM were deciphered, including suppression of proliferation and apoptosis of pulmonary artery smooth muscle cells, controlling the processes of inflammation and oxidative stress, and regulating vasoconstriction and ion channels. In this review, the effects and mechanisms of the frequently studied compound THM, single herbal preparations, and multiple active components from THM are comprehensively summarized, as well as their related mechanisms on several classical preclinical PAH models. It is worth mentioning that sodium tanshinone IIA sulfonate sodium and tetramethylpyrazine are under clinical trials and are considered the most promoting medicines for PAH treatment. Last, reverse pharmacology, a strategy to discover THM or THM-derived components, has also been proposed here for PAH. This review discusses the current state of THM, their working mechanisms against PAH, and prospects of reverse pharmacology, which are expected to facilitate the natural anti-PAH medicine discovery and development and its bench-to-bedside transformation.
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Affiliation(s)
- Zhifeng Xue
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Yixuan Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Mengen Zhou
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Zhidong Liu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Engineering Research Center of Modern Chinese Medicine Discovery and Preparation Technique, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Guanwei Fan
- Medical Experiment Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Tianjin Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, China
| | - Xiaoying Wang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan Zhu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Jian Yang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
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14
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Li MX, Li L, Zhou SY, Cao JH, Liang WH, Tian Y, Shi XT, Yang XB, Wu DY. A biomimetic orthogonal-bilayer tubular scaffold for the co-culture of endothelial cells and smooth muscle cells. RSC Adv 2021; 11:31783-31790. [PMID: 35496878 PMCID: PMC9041441 DOI: 10.1039/d1ra04472a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 09/17/2021] [Indexed: 11/21/2022] Open
Abstract
In blood vessels, endothelial cells (ECs) grow along the direction of blood flow, while smooth muscle cells (SMCs) grow circumferentially along the vessel wall. To mimic this structure, a polycaprolactone (PCL) tubular scaffold with orthogonally oriented bilayer nanofibers was prepared via electrospinning and winding. ECs were cultured on the inner layer of the scaffold with axial nanofibers and SMCs were cultured on the outer layer of the scaffold with circumferential nanofibers. Fluorescence images of the F-actin distribution of ECs and SMCs indicated that cells adhered, stretched, and proliferated in an oriented manner on the scaffold. Moreover, layers of ECs and SMCs formed on the scaffold after one month of incubation. The expression levels of platelet-endothelial cell adhesion molecule 1 (PECAM-1) and a contractile SMC phenotype marker in the EC/SMC co-culture system were much higher than those in individual culture systems, thus demonstrating that the proposed biomimetic scaffold promoted the intercellular junction of ECs and preserved the contractile phenotype of SMCs. To mimic blood vessels, a polycaprolactone tubular scaffold was prepared via electrospinning and winding. Endothelial cells were cultured on the inner layer with axial nanofibers and smooth muscle cells were cultured on the outer layer with circumferential nanofibers.![]()
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Affiliation(s)
- Mei-Xi Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Lei Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Si-Yuan Zhou
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jian-Hua Cao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Wei-Hua Liang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Ye Tian
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Xue-Tao Shi
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology Guangzhou 510006 P. R. China
| | - Xiu-Bin Yang
- Department of Cardiac Surgery, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University Beijing 100029 P. R. China
| | - Da-Yong Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
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15
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Wang J, Li H, Xia T, Feng J, Zhou R. Pulmonary arterial hypertension and flavonoids: A role in treatment. CHINESE J PHYSIOL 2021; 64:115-124. [PMID: 34169916 DOI: 10.4103/cjp.cjp_25_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a high mortality progressive pulmonary vascular disease that can lead to right heart failure. The use of clinical drugs for the treatment of PAH is limited to a great extent because of its single target and high price. Flavonoids are widely distributed in nature, and have been found in fruits, vegetables, and traditional Chinese medicine. They have diverse biological activities and various pharmacological effects such as antitumor, antioxidation, and anti-inflammatory. This review summarizes the progress in pharmacodynamics and mechanism of flavonoids in the treatment of PAH in recent years, in order to provide some theoretical references for relevant researchers.
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Affiliation(s)
- Jialing Wang
- Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Hailong Li
- The Third People's Hospital of Ningxia, Yinchuan, China
| | - Tian Xia
- Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Jun Feng
- Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Ru Zhou
- Department of Pharmacology, College of Pharmacy; Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education; Ningxia Characteristic Traditional Chinese Medicine Modernization Engineering Technology Research Center, Ningxia Medical University, Yinchuan, China
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16
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Zhai C, Wang D. Baicalin regulates the development of pediatric asthma via upregulating microRNA-103 and mediating the TLR4/NF-κB pathway. J Recept Signal Transduct Res 2021; 42:230-240. [PMID: 33730981 DOI: 10.1080/10799893.2021.1900865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pediatric asthma seriously endangers the well-being and health of children worldwide. Baicalin (BA) protects against diverse disorders, including asthma. Therefore, this study explored the mechanism of BA in pediatric asthma. The ovalbumin (OVA)-induced asthmatic mouse model was established to evaluate BA efficacy from aspects of oxidative stress, inflammation, blood cells in bronchoalveolar lavage fluid (BALF) and collagen deposition. Differentially expressed microRNAs (miRs) in BA-treated mice were analyzed. Effects of BA on PDGF-BB-induced smooth muscle cells (SMCs) were assessed. miR downstream mRNA and the related pathway were predicted and verified, and their effects on asthmatic mice were evaluated. BA effectively reversed OVA-induced oxidative stress and inflammation, as well as decreased the number of total cells, eosinophils and neutrophils in BALF, and collagen deposition. miR-103 was significantly upregulated after BA treatment. BA inhibited the abnormal proliferation of PDGF-BB-induced SMCs, which was prevented by miR-103 knockdown. miR-103 targeted TLR4 and regulated the extent of NF-κB phosphorylation. In vivo, miR-103 inhibition weakened the alleviating effects of BA on asthma, which was then reversed after silencing of TLR4. We highlighted that BA has the potency to halt the pediatric asthma progression via miR-103 upregulation and the TLR4/NF-κB axis inhibition.
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Affiliation(s)
- Chuanhua Zhai
- Department of Pediatrics, Suzhou Integrated Traditional Chinese and Western Medicine Hospital, Jiangsu, Suzhou, P.R. China
| | - Debing Wang
- Department of Pediatrics, Suzhou Integrated Traditional Chinese and Western Medicine Hospital, Jiangsu, Suzhou, P.R. China
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17
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Wang T, Hou J, Xiao W, Zhang Y, Zhou L, Yuan L, Yin X, Chen X, Hu Y. Chinese medicinal plants for the potential management of high-altitude pulmonary oedema and pulmonary hypertension. PHARMACEUTICAL BIOLOGY 2020; 58:815-827. [PMID: 32883127 PMCID: PMC8641673 DOI: 10.1080/13880209.2020.1804407] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 05/29/2023]
Abstract
CONTEXT Despite the abundance of knowledge regarding high-altitude pulmonary edoema (HAPE) and high-altitude pulmonary hypertension (HAPH), their prevalence continues to be on the rise. Thus, there is an urgent need for newer safe, effective, and relatively economic drug candidates. China is particularly known for the use of medicinal plants. OBJECTIVE This review summarizes the medicinal plants used for HAPE and HAPH in the past 30 years, as well as some potential plants. METHODS Publications on HAPE and HAPH from 1990 to 2020 were identified using Web of Science, PubMed, SCOPUS, Springer Link, Google Scholar databases, Chinese Clinical Trial Registry and CNKI with the following keywords: 'medicinal plants,' 'hypoxia,' 'high altitude pulmonary edema,' 'high altitude pulmonary hypertension,' 'pathophysiology,' 'mechanisms,' 'prevention,' 'treatment,' 'human,' 'clinical,' 'safety,' and 'pharmacokinetics.' RESULTS We found 26 species (from 20 families) out of 5000 plants which are used for HAPE and HAPH prevention or treatment. Rhodiola rosea Linn. (Crassulaceae) is the most widely utilized. The most involved family is Lamiaceae, which contains 5 species. DISCUSSION AND CONCLUSIONS We mainly reviewed the medicinal plants and mechanisms for the treatment of HAPE and HAPH, and we also assessed related toxicology experiments, pharmacokinetics and bioavailability. Potential medicinal plants were also identified. Further research is needed to determine the pharmacological effects and active ingredients of these potential medicinal plants.
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Affiliation(s)
- Tingting Wang
- Department of Central Laboratory, The General Hospital of Western Theater Command, Chengdu, Sichuan, P. R. China
| | - Jun Hou
- Department of Central Laboratory, The General Hospital of Western Theater Command, Chengdu, Sichuan, P. R. China
| | - Wenjing Xiao
- Department of Central Laboratory, The General Hospital of Western Theater Command, Chengdu, Sichuan, P. R. China
| | - Yaolei Zhang
- Faculty of Medical, Southwest Jiaotong University, Chengdu, Sichuan, P. R. China
| | - Longfu Zhou
- Department of Central Laboratory, The General Hospital of Western Theater Command, Chengdu, Sichuan, P. R. China
| | - Li Yuan
- Faculty of Medical, Southwest Jiaotong University, Chengdu, Sichuan, P. R. China
| | - Xiaoqiang Yin
- Department of Central Laboratory, The General Hospital of Western Theater Command, Chengdu, Sichuan, P. R. China
| | - Xin Chen
- Department of Laboratory Medicine, The Third People’s Hospital of Chengdu/Affiliated Hospital of Southwest, Jiaotong University, Chengdu, Sichuan, P. R. China
| | - Yonghe Hu
- Department of Central Laboratory, The General Hospital of Western Theater Command, Chengdu, Sichuan, P. R. China
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18
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Zhao H, Li C, Li L, Liu J, Gao Y, Mu K, Chen D, Lu A, Ren Y, Li Z. Baicalin alleviates bleomycin‑induced pulmonary fibrosis and fibroblast proliferation in rats via the PI3K/AKT signaling pathway. Mol Med Rep 2020; 21:2321-2334. [PMID: 32323806 PMCID: PMC7185294 DOI: 10.3892/mmr.2020.11046] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 01/13/2020] [Indexed: 01/15/2023] Open
Abstract
Baicalin is an important flavonoid compound THAT is isolated from the Scutellaria baicalensis Georgi Chinese herb and plays a critical role in anti‑oxidative, anti‑inflammatory, anti‑infection and anti‑tumor functions. Although baicalin can suppress the proliferation of tumor cells, the underlying mechanisms of baicalin in bleomycin (BLM)‑induced pulmonary fibrosis remain to be elucidated. Thus, the aim of the present study was to determine the role of baicalin in pulmonary fibrosis and fibroblast proliferation in rats. Hematoxylin and eosin (H&E) and Masson staining were used to measure the morphology of pulmonary fibrosis, ELIASA kits were used to test the ROS and inflammation, and western blotting and TUNEL were performed to study the apoptosis proteins. In vitro, MTT assay, flow cytometry, western blotting and immunofluorescence were performed to investigate the effects of baicalin on proliferation of fibroblasts. The most significantly fibrotic changes were identified in the lungs of model rats at day 28. Baicalin (50 mg/kg) attenuated the degree of pulmonary fibrosis, and the hydroxyproline content of the lung tissues was decreased in the baicalin group, compared with the BLM group. Further investigation revealed that baicalin significantly increased glutathione peroxidase (GSH‑px), total‑superoxide dismutase (T‑SOD) and glutathione (GSH) levels, whilst decreasing that of serum malondialdehyde (MDA). TUNEL‑positive cells were significantly decreased in rats treated with baicalin group, compared with the model group. Furthermore, it was found that BLM promoted fibroblasts viability in a dose‑dependent manner in vivo, which was restricted following treatment with different concentrations of baicalin. Moreover, BLM promoted the expression levels of cyclin A, D and E, proliferating cell nuclear antigen, phosphorylated (p)‑AKT and p‑calcium/calmodulin‑dependent protein kinase type. BLM also promoted the transition of cells from the G0/G1 phase to the G2/M and S phases, and increased the intracellular Ca2+ concentration, which was subsequently suppressed by baicalin. Collectively, the results of the present study suggested that baicalin exerted a suppressive effect on BLM‑induced pulmonary fibrosis and fibroblast proliferation.
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Affiliation(s)
- Hong Zhao
- Department of Respiratory Medicine, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Chundi Li
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Lina Li
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Junying Liu
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Yinghui Gao
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Kun Mu
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Donghe Chen
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Aiping Lu
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Yuanyuan Ren
- Department of Respiratory Medicine, Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang 163316, P.R. China
| | - Zhenhua Li
- Department of Respiratory Medicine, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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19
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Jasemi SV, Khazaei H, Aneva IY, Farzaei MH, Echeverría J. Medicinal Plants and Phytochemicals for the Treatment of Pulmonary Hypertension. Front Pharmacol 2020; 11:145. [PMID: 32226378 PMCID: PMC7080987 DOI: 10.3389/fphar.2020.00145] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/04/2020] [Indexed: 12/18/2022] Open
Abstract
Background Pulmonary hypertension (PH) is a progressive disease that is associated with pulmonary arteries remodeling, right ventricle hypertrophy, right ventricular failure and finally death. The present study aims to review the medicinal plants and phytochemicals used for PH treatment in the period of 1994 – 2019. Methods PubMed, Cochrane and Scopus were searched based on pulmonary hypertension, plant and phytochemical keywords from August 23, 2019. All articles that matched the study based on title and abstract were collected, non-English, repetitive and review studies were excluded. Results Finally 41 studies remained from a total of 1290. The results show that many chemical treatments considered to this disease are ineffective in the long period because they have a controlling role, not a therapeutic one. On the other hand, plants and phytochemicals could be more effective due to their action on many mechanisms that cause the progression of PH. Conclusion Studies have shown that herbs and phytochemicals used to treat PH do their effects from six mechanisms. These mechanisms include antiproliferative, antioxidant, antivascular remodeling, anti-inflammatory, vasodilatory and apoptosis inducing actions. According to the present study, many of these medicinal plants and phytochemicals can have effects that are more therapeutic than chemical drugs if used appropriately.
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Affiliation(s)
- Seyed Vahid Jasemi
- Department of Internal Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hosna Khazaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ina Yosifova Aneva
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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20
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Rouco L, Liberato A, Fernández-Trujillo MJ, Máñez A, Basallote MG, Alvariño R, Alfonso A, Botana LM, Maneiro M. Salen‑manganese complexes for controlling ROS damage: Neuroprotective effects, antioxidant activity and kinetic studies. J Inorg Biochem 2019; 203:110918. [PMID: 31759263 DOI: 10.1016/j.jinorgbio.2019.110918] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 11/04/2019] [Accepted: 11/10/2019] [Indexed: 12/23/2022]
Abstract
A new manganese(III) complex [MnL1(DCA)(H2O)](H2O),1 [H2L1 is the chelating ligand N,N'-bis(2-hydroxy-3-methoxybenzylidene)-1,2-diaminopropane, and DCA is dicyanamide], has been prepared and characterized by different analytical and spectroscopic techniques. The tetragonally elongated octahedral geometry for the manganese coordination sphere was revealed by X-ray diffraction studies for 1. The antioxidant behavior of this complex and other manganese(III)-salen type complexes was tested through superoxide dismutase and catalase probes, and through the study of their neuroprotective effects in SH-SY5Y neuroblastoma cells. In this human neuronal model, these model complexes were found to improve cell survival in an oxidative stress model. During studies aimed to getting a better understanding of the kinetics of the processes involved in this antioxidant behavior, an important effect on the solvent in the kinetics of reaction of the complexes with H2O2 was revealed that suggests a change in the mechanism of reaction of the complexes. The kinetic data in methanol and buffered aqueous solutions correlate well with the results of the test of catalase activity, thus showing that the rate determining step in the catalytic cycle corresponds to the initial reaction of the complexes with H2O2.
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Affiliation(s)
- Lara Rouco
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
| | - Andrea Liberato
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, Cádiz, Spain
| | - M Jesús Fernández-Trujillo
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, Cádiz, Spain
| | - Angeles Máñez
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, Cádiz, Spain
| | - Manuel G Basallote
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, Cádiz, Spain
| | - Rebeca Alvariño
- Departamento. de Farmacología, Facultade de Veterinaria, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
| | - Amparo Alfonso
- Departamento. de Farmacología, Facultade de Veterinaria, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
| | - Luis M Botana
- Departamento. de Farmacología, Facultade de Veterinaria, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
| | - Marcelino Maneiro
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain.
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21
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Zhang L, Zhang Y, Wu Y, Yu J, Zhang Y, Zeng F, Shi L. Role of the Balance of Akt and MAPK Pathways in the Exercise-Regulated Phenotype Switching in Spontaneously Hypertensive Rats. Int J Mol Sci 2019; 20:ijms20225690. [PMID: 31766280 PMCID: PMC6888552 DOI: 10.3390/ijms20225690] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/09/2019] [Accepted: 11/10/2019] [Indexed: 12/26/2022] Open
Abstract
The mechanisms regulating vascular smooth muscle cell (VSMC) phenotype switching and the critical signal modulation affecting the VSMCs remain controversial. Physical exercise acts as an effective drug in preventing elevated blood pressure and improving vascular function. This study was designed to explore the influence of aerobic exercise on the suppression of VSMC phenotype switching by balancing of the Akt, also known as PKB (protein kinase B) and mitogen-activated protein kinase (MAPK) signaling pathways. Spontaneously hypertensive rats (SHRs) and normotensive rats were subjected to exercise treatment before measuring the vascular morphological and structural performances. Exercise induced reverse expression of VSMC protein markers (α-SM-actin, calponin, and osteopontin (OPN)) in spontaneously hypertensive rats. It is noteworthy that the low expression of phosphorylated Akt significantly decreased the expression of VSMC contractile phenotype markers (α-SM-actin and calponin) and increased the expression of the VSMC synthetic phenotype marker (OPN). However, the MAPK signal pathway exerts an opposite effect. VSMCs and whole vessels were treated by inhibitors, namely the p-Akt inhibitor, p-ERK inhibitor, and p-p38 MAPK inhibitors. VSMC phenotype markers were reversed. It is important to note that a significant reverse regulatory relationship was observed between the expression levels of MAPK and the contractile markers in both normotensive and spontaneously hypertensive rats. We demonstrate that aerobic exercise regulates the VSMC phenotype switching by balancing the Akt and MAPK signaling pathways in SHRs.
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Affiliation(s)
- Lin Zhang
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China; (L.Z.); (Y.Z.); (Y.W.)
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing 100084, China;
- China Institute of Sport and Health Science, Beijing Sport University, Beijing 100084, China;
| | - Yanyan Zhang
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China; (L.Z.); (Y.Z.); (Y.W.)
| | - Ying Wu
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China; (L.Z.); (Y.Z.); (Y.W.)
| | - Jingjing Yu
- China Institute of Sport and Health Science, Beijing Sport University, Beijing 100084, China;
| | - Yimin Zhang
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing 100084, China;
- China Institute of Sport and Health Science, Beijing Sport University, Beijing 100084, China;
| | - Fanxing Zeng
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China; (L.Z.); (Y.Z.); (Y.W.)
| | - Lijun Shi
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China; (L.Z.); (Y.Z.); (Y.W.)
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing 100084, China;
- Correspondence: ; Tel.: +86-10-6298-9582
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Yan G, Wang J, Yi T, Cheng J, Guo H, He Y, Shui X, Wu Z, Huang S, Lei W. Baicalin prevents pulmonary arterial remodeling in vivo via the AKT/ERK/NF-κB signaling pathways. Pulm Circ 2019; 9:2045894019878599. [PMID: 31723406 PMCID: PMC6831981 DOI: 10.1177/2045894019878599] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 09/05/2019] [Indexed: 02/06/2023] Open
Abstract
Pulmonary arterial hypertension is a rapidly progressive and often fatal disease. As the pathogenesis of pulmonary arterial hypertension remains unclear, there is currently no good drug for pulmonary arterial hypertension and new therapy is desperately needed. This study investigated the effects and mechanism of baicalin on vascular remodeling in rats with pulmonary arterial hypertension. A rat pulmonary arterial hypertension model was constructed using intraperitoneal injection of monocrotaline, and different doses of baicalin were used to treat these rats. The mean pulmonary arterial pressure (mPAP) and right ventricular systolic pressure (RVSP) were measured with a right heart catheter. Moreover, the hearts were dissected to determine the right ventricular hypertrophy index (RVHI). The lung tissues were stained with H&E and Masson's staining to estimate the pulmonary vascular remodeling and collagen fibrosis, and the expression of proteins in the AKT, ERK, and NF-κB p65 phosphorylation (p-AKT, p-ERK, p-p65) was examined by Western blot analysis. We found that compared with untreated pulmonary arterial hypertension rats, baicalin ameliorated pulmonary vascular remodeling and cardiorespiratory injury, inhibited p-p65 and p-ERK expression, and promoted p-AKT and p-eNOS expression. In conclusion, baicalin interfered with pulmonary vascular remodeling and pulmonary arterial hypertension development in rats through the AKT/eNOS, ERK and NF-κB signaling pathways.
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Affiliation(s)
- Guosen Yan
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, China.,Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jinxia Wang
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, China.,Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tao Yi
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, China.,Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Junfen Cheng
- Department of Respiration, the Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Haixu Guo
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, China.,Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yuan He
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, China
| | - Xiaorong Shui
- Laboratory of Vascular Surgery, Guangdong Medical University, Zhanjiang, China
| | - Zeyong Wu
- Department of Plastic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shian Huang
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wei Lei
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, China.,Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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23
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Zhang Z, Li Z, Wang Y, Wei L, Chen H. Overexpressed long noncoding RNA CPS1‐IT alleviates pulmonary arterial hypertension in obstructive sleep apnea by reducing interleukin‐1β expression via HIF1 transcriptional activity. J Cell Physiol 2019; 234:19715-19727. [PMID: 30982984 DOI: 10.1002/jcp.28571] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 03/05/2019] [Accepted: 03/14/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Zeming Zhang
- Department of Respiratory Medicine Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital Shanghai China
| | - Zheng Li
- Department of Respiratory Medicine Affiliated Hospital, Hebei University Baoding China
| | - Yancun Wang
- Department of Neurology Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital Shanghai China
| | - Li Wei
- Department of Respiratory Medicine Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital Shanghai China
| | - Hao Chen
- Department of Respiratory Medicine Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital Shanghai China
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24
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A coumarin analogue NFA from endophytic Aspergillus fumigatus improves drought resistance in rice as an antioxidant. BMC Microbiol 2019; 19:50. [PMID: 30808281 PMCID: PMC6390358 DOI: 10.1186/s12866-019-1419-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/15/2019] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Drought and its resulting oxidative damage are the major yield limiting factors for crops in arid and semi-arid regions. Recent studies have found that endophytic fungi coexisting in plants can alleviate biotic or abiotic damage to plant growth and development. In order to screen for the endophytes associated with drought stress, 12 strains of endophytic fungi with high antioxidant activity isolated from riparian plants Myricaria laxiflora were evaluated for their effects in rice by the crude extracts. RESULTS Of the 12 endophytic fungi, Aspergillus fumigatus SG-17 functioned most effectively, with the crude extract exhibiting relatively higher antioxidant capacity both in vivo and in vitro. The subsequent MS and NMR analysis showed that the primary substance responsible for the antioxidant activity in the extract was (Z)-N-(4-hydroxystyryl) formamide (NFA), an analogue of coumarin. Enzyme activity assay in nerve cells SH-SY5Y showed that NFA could maintain the membrane integrity and regulate the antioxidase activity under oxidative stress. In rice suffering drought stress, NFA effectively alleviated the harm by regulating the contents of NADPH oxidases, antioxidants and heat shock proteins, all of which are closely related with the reactive oxygen species pathway. CONCLUSION These findings indicated that some endophytes from plants often subjected to flooding and oxidative stress could enhance drought resistance by producing compounds such as NFA to regulate the oxidative pathway.
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25
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Huang X, Mao W, Zhang T, Wang M, Wang X, Li Y, Zhang L, Yao D, Cai X, Wang L. Baicalin promotes apoptosis and inhibits proliferation and migration of hypoxia-induced pulmonary artery smooth muscle cells by up-regulating A2a receptor via the SDF-1/CXCR4 signaling pathway. Altern Ther Health Med 2018; 18:330. [PMID: 30541517 PMCID: PMC6292092 DOI: 10.1186/s12906-018-2364-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 10/25/2018] [Indexed: 12/11/2022]
Abstract
Background Baicalin is a flavonoid compound that exerts specific pharmacological effect in attenuating the proliferation, migration, and apoptotic resistance of hypoxia-induced pulmonary artery smooth muscle cells (PASMCs). However, the underlying mechanism has not been fully elucidated yet. Although our previous studies had indicated that activation of A2aR attenuates CXCR expression, little is known about the relationship between A2aR and SDF-1/CXCR4 axis in hypoxic PASMCs. In this study, we aimed to investigate the effect of A2aR on the SDF-1/CXCR4 axis in hypoxic PASMCs, the mechanism underlying this effect, and whether baicalin exerts its protective functions though A2aR. Methods Rat PASMCs were cultured under normoxia/hypoxia and divided into nine groups: normoxia, hypoxia, hypoxia + AMD3100 (a CXCR4 antagonist), hypoxia + baicalin, hypoxia + negative virus, normoxia + A2aR knockdown, hypoxia + A2aR knockdown, hypoxia + CGS21680 (an A2aR agonist), and hypoxia + A2aR knockdown + baicalin. Lentiviral transfection methods were used to establish the A2aR knockdown model in PASMCs. Cells were incubated under hypoxic conditions for 24 h. Expression levels of A2aR, SDF-1, and CXCR4 were detected using RT-qPCR and western blot. The proliferation and migration rate were observed via CCK-8 and Transwell methods. Cell cycle distribution and cell apoptosis were measured by flow cytometry (FCM) and the In-Situ Cell Death Detection kit (Fluorescein). Results Under hypoxic conditions, levels of A2aR, SDF-1, and CXCR4 were significantly increased compared to those under normoxia. The trend of SDF-1 and CXCR4 being inhibited when A2aR is up-regulated was more obvious in the baicalin intervention group. Baicalin directly enhanced A2aR expression, and A2aR knockdown weakened the function of baicalin. SDF-1 and CXCR4 expression levels were increased in the hypoxia + A2aR knockdown group, as were the proliferation and migration rates of PASMCs, while the apoptotic rate was decreased. Baicalin and CGS21680 showed opposite effects. Conclusions Our data indicate that baicalin efficiently attenuates hypoxia-induced PASMC proliferation, migration, and apoptotic resistance, as well as SDF-1 secretion, by up-regulating A2aR and down-regulating the SDF-1/CXCR4 axis.
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26
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He H, Li X, Yu H, Zhu S, He Y, Komatsu K, Guo D, Li X, Wang J, Luo H, Xu D, Zou K. Gastroprotective effect of araloside A on ethanol- and aspirin-induced gastric ulcer in mice: involvement of H +/K +-ATPase and mitochondrial-mediated signaling pathway. J Nat Med 2018; 73:339-352. [PMID: 30523551 DOI: 10.1007/s11418-018-1256-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 10/12/2018] [Indexed: 12/11/2022]
Abstract
The aim of this study was to elucidate the gastroprotective activity and possible mechanism of involvement of araloside A (ARA) against ethanol- and aspirin-induced gastric ulcer in mice. The experimental mice were randomly divided into control, model, omeprazole (20 mg/kg, orally) and ARA (10, 20 and 40 mg/kg, orally). Gastric ulcer in mice was induced by intragastric administration of 80% ethanol (10 mL/kg) containing 15 mg/mL aspirin 4 h after drug administration on day 7. The results indicated that ARA could significantly raise gastric juice volume and acidity; ameliorate gastric mucosal blood flow, gastric binding mucus volume, ulcer index and ulcer inhibition rate; suppress H+/K+-ATPase activity, which was confirmed by computer-aided docking simulations; inhibit the release of mitochondrial cytochrome c into the cytoplasm; inhibit caspase-9 and caspase-3 activities and down-regulate mRNA expression levels; down-regulate the mRNA and protein expressions of apoptosis protease-activating factor-1 and protein expression of cleaved poly(ADP ribose) polymerase-1; and up-regulate Bcl-2 mRNA and protein expressions and down-regulate Bax mRNA and protein expressions, thus elevating the Bcl-2/Bax ratio in a dose-dependent manner. Histopathological observations further provided supportive evidence for the aforementioned results. The results demonstrated that ARA exerted beneficial gastroprotective effects on alcohol- and aspirin-induced gastric ulcer in mice, which was related to suppressing H+/K+-ATPase activity as well as pro-apoptotic protein expression, and promoting anti-apoptotic protein expression, thus alleviating gastric mucosal injury and cell death.
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Affiliation(s)
- Haibo He
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China
| | - Xiaomei Li
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China
| | - Haili Yu
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China
| | - Shu Zhu
- Division of Pharmacognosy, Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Yumin He
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China
| | - Katsuko Komatsu
- Division of Pharmacognosy, Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Dongyan Guo
- Shaanxi Key Laboratory of Traditional Chinese Medicine Foundation and New Drug Research, Shaanxi University of Chinese Medicine, Shiji Road, Xianyang, 712046, China.
| | - Xiaoqin Li
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China
| | - Junzhi Wang
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China.
| | - Huajun Luo
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China
| | - Daoxiang Xu
- Seventh People's Hospital of Wenzhou, 552 Shanxi East Road, Wenzhou, 325005, China
| | - Kun Zou
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, 8 University Avenue, Yichang, 443002, China
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27
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Bock KW. Human AHR functions in vascular tissue: Pro- and anti-inflammatory responses of AHR agonists in atherosclerosis. Biochem Pharmacol 2018; 159:116-120. [PMID: 30508524 DOI: 10.1016/j.bcp.2018.11.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023]
Abstract
Despite decades of intense research physiologic aryl hydrocarbon receptor (AHR) functions have not been elucidated. Challenges include marked species differences and dependence on cell type and cellular context. A previous commentary on human AHR functions in skin and intestine has been extended to vascular tissue. Similar functions appear to be operating in vascular tissue including microbial defense, modulation of stem/progenitor cells as well as control of immunity and inflammation. However, AHR functions are Janus faced: Detrimental AHR functions in vascular tissue are well documented, e.g., upon exposure to polycyclic aromatic hydrocarbons in cigarette smoke leading to oxidative stress and generation of oxidized LDL. Modified LDL particles accumulate in macrophages and smooth muscle-derived pro-inflammatory foam cells, the hallmark of atherosclerosis. On the other hand, numerous anti-inflammatory AHR agonists have been identified including bilirubin and quercetin. Mechanisms as to how AHR produces pro- and anti-inflammatory responses in the vascular system need further investigation.
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Affiliation(s)
- Karl Walter Bock
- Department of Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Wilhelmstrasse 56, D-72074 Tübingen, Germany.
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28
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Zhang Y, Ding J, Xu C, Yang H, Xia P, Ma S, Chen H. rBMSCs/ITGA5B1 Promotes Human Vascular Smooth Muscle Cell Differentiation via Enhancing Nitric Oxide Production. Int J Stem Cells 2018; 11:168-176. [PMID: 30497129 PMCID: PMC6285296 DOI: 10.15283/ijsc18079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/06/2018] [Accepted: 10/08/2018] [Indexed: 11/09/2022] Open
Abstract
Background and Objectives Previous studies have shown that integrins alpha5beta1 (ITGA5B1) gene-modified rat bone marrow mesenchymal stem cells (rBMSCs) could prevent cell anoikis and increase the nitric oxide (NO) production. Here we examined the capability of rBMSCs/ITGA5B1 on the phenotype modulation of Human Pulmonary Artery Smooth Muscle Cell (HPASMC) in vitro. Methods and Results The synthetic (dedifferentiated) phenotype of HPASMC was induced by monocrotaline (MCT, 1μM) for 24 h and then co-cultured with rBMSCs/ITGA5B1 in a transwell culture system. The activation of NO/cGMP (nitric oxide/Guanosine-3', 5'-cyclic monophosphate) signaling was investigated in HPASMC. The changes of pro-inflammatory factors, oxidative stress, vasodilator, vasoconstrictor, contractile and synthetic genes, and the morphological changes of HPASMC were investigated. The results of this study showed that the NO/cGMP signal, endothelial nitric oxide synthase (eNOS) expression, the expression of the vasoprotective genes heme oxygenase-1 (HMOX1) and prostaglandin-endoperoxide synthase 2 (PTGS2) were increased, but the expression of transforming growth factor-β1 (TGF-β1), CCAAT/enhancer-binding proteins delta (Cebpd), Krüppel-like factor 4 (KLF4), and activating transcription factor 4 (ATF4) were reduced in MCT treated HPASMC co-cultured with rBMSCs/ITGA5B1. The synthetic smooth muscle cells (SMCs) phenotype markers thrombospondin-1, epiregulin and the vasoconstrictor endothelin (ET)-1, thromboxane A2 receptor (TbxA2R) were down-regulated, whereas the contractile SMCs phenotype marker transgelin expression was up-regulated by rBMSCs/ITGA5B1. Furthermore, rBMSCs/ITGA5B1 promoted the morphological restoration from synthetic (dedifferentiation) to contractile (differentiation) phenotype in MCT treated HPASMC. Conclusions rBMSCs/ITGA5B1 could inhibit inflammation and oxidative stress related genes to promote the HPASMC cell differentiation by activation NO/cGMP signal.
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Affiliation(s)
- Yingxin Zhang
- Central Laboratory of Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Jie Ding
- Central Laboratory of Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Cong Xu
- Central Laboratory of Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Hongli Yang
- Central Laboratory of Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Peng Xia
- Department of Cardiology, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Shengjun Ma
- Department of Cardiology, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Haiying Chen
- Central Laboratory of Liaocheng People's Hospital, Liaocheng, Shandong, China
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29
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Pang LP, Li Y, Zou QY, Zhou C, Lei W, Zheng J, Huang SA. ITE inhibits growth of human pulmonary artery endothelial cells. Exp Lung Res 2018; 43:283-292. [PMID: 29140133 DOI: 10.1080/01902148.2017.1367868] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIM Pulmonary arterial hypertension (PAH), a deadly disorder is associated with excessive growth of human pulmonary artery endothelial (HPAECs) and smooth muscle (HPASMCs) cells. Current therapies primarily aim at promoting vasodilation, which only ameliorates clinical symptoms without a cure. 2-(1'H-indole-3'-carbonyl)-thiazole-4-carboxylic acid methyl ester (ITE) is an endogenous aryl hydrocarbon receptor (AhR) ligand, and mediates many cellular function including cell growth. However, the roles of ITE in human lung endothelial cells remain elusive. Herein, we tested a hypothesis that ITE inhibits growth of human pulmonary artery endothelial cells via AhR. MATERIALS AND METHODS Immunohistochemistry was performed to localize AhR expression in human lung tissues. The crystal violet method and MTT assay were used to determine ITE's effects on growth of HPAECs. The AhR activation in HPAECs was confirmed using Western blotting and RT-qPCR. The role of AhR in ITE-affected proliferation of HPAECs was assessed using siRNA knockdown method followed by the crystal violet method. RESULTS Immunohistochemistry revealed that AhR was present in human lung tissues, primarily in endothelial and smooth muscle cells of pulmonary veins and arteries, as well as in bronchial and alveolar sac epithelia. We also found that ITE dose- and time-dependently inhibited proliferation of HPAECs with a maximum inhibition of 83% at 20 µM after 6 days of treatment. ITE rapidly decreased AhR protein levels, while it increased mRNA levels of cytochrome P450 (CYP), family 1, member A1 (CYP1A1) and B1 (CYP1B1), indicating activation of the AhR/CYP1A1 and AhR/CYP1B1 pathways in HPAECs. The AhR siRNA significantly suppressed AhR protein expression, whereas it did not significantly alter ITE-inhibited growth of HPAECs. CONCLUSIONS ITE suppresses growth of HPAECs independent of AhR, suggesting that ITE may play an important role in preventing excessive growth of lung endothelial cells.
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Affiliation(s)
- Ling-Pin Pang
- a Cardiovascular Medicine Center , Affiliated Hospital of Guangdong Medical University , Zhanjiang , Guangdong , P.R. China.,b Department of Obstetrics and Gynecology , University of Wisconsin-Madison , Madison , WI , USA
| | - Yan Li
- b Department of Obstetrics and Gynecology , University of Wisconsin-Madison , Madison , WI , USA
| | - Qing-Yun Zou
- b Department of Obstetrics and Gynecology , University of Wisconsin-Madison , Madison , WI , USA
| | - Chi Zhou
- b Department of Obstetrics and Gynecology , University of Wisconsin-Madison , Madison , WI , USA
| | - Wei Lei
- a Cardiovascular Medicine Center , Affiliated Hospital of Guangdong Medical University , Zhanjiang , Guangdong , P.R. China
| | - Jing Zheng
- a Cardiovascular Medicine Center , Affiliated Hospital of Guangdong Medical University , Zhanjiang , Guangdong , P.R. China.,b Department of Obstetrics and Gynecology , University of Wisconsin-Madison , Madison , WI , USA
| | - Shi-An Huang
- a Cardiovascular Medicine Center , Affiliated Hospital of Guangdong Medical University , Zhanjiang , Guangdong , P.R. China
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30
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Aryl Hydrocarbon Receptor: A New Player of Pathogenesis and Therapy in Cardiovascular Diseases. BIOMED RESEARCH INTERNATIONAL 2018; 2018:6058784. [PMID: 29984241 PMCID: PMC6015699 DOI: 10.1155/2018/6058784] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 03/14/2018] [Accepted: 04/05/2018] [Indexed: 01/04/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is a DNA binding protein that acts as a nuclear receptor mediating xenobiotic metabolism and environmental responses. Owing to the evolutionary conservation of this gene and its widespread expression in the immune and circulatory systems, AhR has for many years been almost exclusively studied by the pharmacological/toxicological field for its role in contaminant toxicity. More recently, the functions of AhR in environmental adaption have been examined in the context of the occurrence, development, and therapy of cardiovascular diseases. Increasing evidence suggests that AhR is involved in maintaining homeostasis or in triggering pathogenesis by modulating the biological responses of critical cell types in the cardiovascular system. Here, we describe the structure, distribution, and ligands of AhR and the AhR signaling pathway and review the impact of AhR on cardiovascular physiology. We also discuss the potential contribution of AhR as a new potential factor in the targeted treatment of cardiovascular diseases.
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31
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Danshensu prevents hypoxic pulmonary hypertension in rats by inhibiting the proliferation of pulmonary artery smooth muscle cells via TGF-β-smad3-associated pathway. Eur J Pharmacol 2018; 820:1-7. [DOI: 10.1016/j.ejphar.2017.12.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 11/26/2017] [Accepted: 12/04/2017] [Indexed: 12/13/2022]
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32
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Quercetin Inhibits Pulmonary Arterial Endothelial Cell Transdifferentiation Possibly by Akt and Erk1/2 Pathways. BIOMED RESEARCH INTERNATIONAL 2017; 2017:6147294. [PMID: 28428963 PMCID: PMC5385898 DOI: 10.1155/2017/6147294] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 02/18/2017] [Accepted: 02/23/2017] [Indexed: 12/20/2022]
Abstract
This study aimed to investigate the effects and mechanisms of quercetin on pulmonary arterial endothelial cell (PAEC) transdifferentiation into smooth muscle-like cells. TGF-β1-induced PAEC transdifferentiation models were applied to evaluate the pharmacological actions of quercetin. PAEC proliferation was detected with CCK8 method and BurdU immunocytochemistry. Meanwhile, the identification and transdifferentiation of PAECs were determined by FVIII immunofluorescence staining and α-SMA protein expression. The related mechanism was elucidated based on the levels of Akt and Erk1/2 signal pathways. As a result, quercetin effectively inhibited the TGF-β1-induced proliferation and transdifferentiation of the PAECs and activation of Akt/Erk1/2 cascade in the cells. In conclusion, quercetin is demonstrated to be effective for pulmonary arterial hypertension (PAH) probably by inhibiting endothelial transdifferentiation possibly via modulating Akt and Erk1/2 expressions.
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33
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Xue Z, Li D, Yu W, Zhang Q, Hou X, He Y, Kou X. Mechanisms and therapeutic prospects of polyphenols as modulators of the aryl hydrocarbon receptor. Food Funct 2017; 8:1414-1437. [DOI: 10.1039/c6fo01810f] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Polyphenolic AhR modulators displayed concentration-, XRE-, gene-, species- and cell-specific agonistic/antagonistic activity.
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Affiliation(s)
- Zhaohui Xue
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Dan Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Wancong Yu
- Medical Plant Laboratory
- Tianjin Research Center of Agricultural Biotechnology
- Tianjin 3000381
- China
| | - Qian Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xiaonan Hou
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yulong He
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xiaohong Kou
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
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34
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Phytanic Acid-Induced Neurotoxicological Manifestations and Apoptosis Ameliorated by Mitochondria-Mediated Actions of Melatonin. Mol Neurobiol 2016; 54:6960-6969. [PMID: 27785753 DOI: 10.1007/s12035-016-0209-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 10/11/2016] [Indexed: 12/27/2022]
Abstract
Phytanic acid, a saturated branched chain fatty acid and a major constituent of human diet, is predominantly found in dairy products, meat, and fish. It is a degradation product from the phytol side chain of chlorophyll. Degradation of PA is known to occur mainly in peroxisomes via α-oxidation and in mitochondria via β-oxidation. Due to its β-methyl group present at the 3-position of the carbon atoms, PA cannot be β-oxidized. Although alteration in the metabolism of PA may play an important role in neurodegeneration, the exact mechanism behind it remains to be evaluated. In this study, we have described the potential of PA to induce neurotoxicity as an in vitro model (neuronal cell line, SH-SY5Y cells). Cells were pretreated with melatonin (10 μM) for 1 h followed by with and without PA (100 μM) for 24 h. In the present study, our data has confirmed that PA markedly increased both intracellular reactive oxygen species and reactive nitrogen species levels. Our results have shown that PA treatment did not induce cell death by cleavage of caspase-3/PARP-1 mediated by mitochondria through intrinsic pathways; however, PA induced nitric oxide-dependent apoptosis in SH-SY5Y cells. Additionally, melatonin pretreatment reduced the cell death in SH-SY5Y cells. Melatonin also effectively exerted an antiapoptotic and anti-inflammatory action by regulating Bax, Bcl-2, p-NFκB, and iNOS expressions in SH-SY5Y cells. These results suggested that melatonin acted as an antioxidative and antiapoptotic agent by modulating ROS, apoptotic proteins, and inflammatory responses under BCFA-induced neurotoxic conditions. The protective effects of melatonin depend on direct scavenging activity of free radicals and indirect antioxidant effects. Further deciphering of the cellular and molecular mechanism associated with neuroprotection by melatonin is warranted in BCFA-induced neurotoxicity.
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Lei W, He Y, Shui X, Li G, Yan G, Zhang Y, Huang S, Chen C, Ding Y. Expression and analyses of the HIF-1 pathway in the lungs of humans with pulmonary arterial hypertension. Mol Med Rep 2016; 14:4383-4390. [PMID: 27667582 DOI: 10.3892/mmr.2016.5752] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 07/22/2016] [Indexed: 11/06/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is characterized by endothelial dysfunction and structural remodeling of the pulmonary vasculature, mediated initially by reduced oxygen availability in the lungs. Hypoxia inducible factor (HIF), consisting of the functional subunit, HIF‑1α, and the constitutively expressed HIF‑1β, is involved in the pathological processes associated with hypoxia. In the current study, the sequences of cDNAs and amino acids of HIF were characterized and analyzed using online bioinformatics tools. To further evaluate whether HIF accounts for the occurrence of PAH, the present study determine the expression and phosphorylation levels of HIF and its associated pathways, including extracellular signal‑regulated kinase (Erk)1/2 and phosphoinositide 3‑kinase (PI3K)/Akt, in the lungs of patients with PAH by reverse transcription‑quantitative polymerase chain reaction and western blotting. The mRNA expression levels of PI3K, Erk2, and HIF‑1α in the patients with PAH were significantly higher, compared with those in the control group, by 3.6‑fold (P<0.01), 4.06‑fold and 2.64‑fold (P<0.05), respectively. No significant differences were found in the mRNA and protein levels of Akt between the two groups (P>0.05). The protein levels of phosphorylated (p‑)Akt, Erk1/2, p‑Erk1/2, HIF‑1α and HIF‑1β were significantly increased by 5.89‑, 0.5‑, 0.59‑, 1.46‑ and 0.92‑fold, respectively, in the patients with PAH, compared with those in the controls group (P<0.01 for p‑Akt, Erk1/2; P<0.05 for p‑Erk1/2, HIF‑1α and HIF‑1β). These findings suggested that the mitogen‑activated protein kinase and PI3K/Akt signaling pathways, and HIF‑1 may perform a specific function in the pathogenesis of PAH.
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Affiliation(s)
- Wei Lei
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Yuan He
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Xiaorong Shui
- Laboratory of Vascular Surgery, Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Guoming Li
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Guosen Yan
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Yu Zhang
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Shian Huang
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Can Chen
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Yuanlin Ding
- Institute of Medical Systems Biology, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
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Dean A, Nilsen M, Loughlin L, Salt IP, MacLean MR. Metformin Reverses Development of Pulmonary Hypertension via Aromatase Inhibition. Hypertension 2016; 68:446-54. [DOI: 10.1161/hypertensionaha.116.07353] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 05/13/2016] [Indexed: 11/16/2022]
Abstract
Females are more susceptible to pulmonary arterial hypertension than males, although the reasons remain unclear. The hypoglycemic drug, metformin, is reported to have multiple actions, including the inhibition of aromatase and stimulation of AMP-activated protein kinase. Inhibition of aromatase using anastrazole is protective in experimental pulmonary hypertension but whether metformin attenuates pulmonary hypertension through this mechanism remains unknown. We investigated whether metformin affected aromatase activity and if it could reduce the development of pulmonary hypertension in the sugen 5416/hypoxic rat model. We also investigated its influence on proliferation in human pulmonary arterial smooth muscle cells. Metformin reversed right ventricular systolic pressure, right ventricular hypertrophy, and decreased pulmonary vascular remodeling in the rat. Furthermore, metformin increased rat lung AMP-activated protein kinase signaling, decreased lung and circulating estrogen levels, levels of aromatase, the estrogen metabolizing enzyme; cytochrome P450 1B1 and its transcription factor; the aryl hydrocarbon receptor. In human pulmonary arterial smooth muscle cells, metformin decreased proliferation and decreased estrogen synthesis by decreasing aromatase activity through the PII promoter site of
Cyp19a1
. Thus, we report for the first time that metformin can reverse pulmonary hypertension through inhibition of aromatase and estrogen synthesis in a manner likely to be mediated by AMP-activated protein kinase.
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Affiliation(s)
- Afshan Dean
- From the Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Margaret Nilsen
- From the Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Lynn Loughlin
- From the Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Ian P. Salt
- From the Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Margaret R. MacLean
- From the Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
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Bai C, Yang X, Zou K, He H, Wang J, Qin H, Yu X, Liu C, Zheng J, Cheng F, Chen J. Anti-proliferative effect of RCE-4 from Reineckia carnea on human cervical cancer HeLa cells by inhibiting the PI3K/Akt/mTOR signaling pathway and NF-κB activation. Naunyn Schmiedebergs Arch Pharmacol 2016; 389:573-84. [DOI: 10.1007/s00210-016-1217-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 02/08/2016] [Indexed: 01/28/2023]
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Xue Y, Shui X, Su W, He Y, Lu X, Zhang Y, Yan G, Huang S, Lei W, Chen C. Baicalin inhibits inflammation and attenuates myocardial ischaemic injury by aryl hydrocarbon receptor. ACTA ACUST UNITED AC 2015; 67:1756-64. [PMID: 26407904 DOI: 10.1111/jphp.12484] [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: 04/03/2015] [Accepted: 07/28/2015] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Recent evidence indicates that suppressing inflammation by specific drug target and treatment measures contributes to attenuate ischaemic injury and the related heart diseases. This study aimed to investigate the potential effect of baicalin on myocardial ischaemic injury through inhibition of inflammation by inactivating the aryl hydrocarbon receptor (AhR). METHODS The mouse model with myocardial ischaemic injury was prepared by the left anterior descending coronary artery-amputation and then treated using baicalin. After observing the expression of AhR by immunohistochemical staining, the AhR and inflammatory mediators in circulation and myocardial tissues, including high-sensitive C-reactive protein (hsCRP), interleukin (IL)-1β and IL-6, were detected based on enzyme-linked immunosorbent assay, real-time polymerase chain reaction and Western blot methods. KEY FINDINGS The results showed that (1) substantial expression of AhR was observed in myocardial tissues; (2) ischaemic injury caused myocardial necrosis and remodelling, and stimulated hsCRP, IL-1β and IL-6 by activation of AhR; and (3) baicalin alleviated the myocardial injury and inflammatory response by inhibiting the expression of AhR. CONCLUSION Our findings extend the list of AhR ligands beyond exogenous toxins and endogenous molecules to cardiac immunological factors, and moreover it could be considered potential drug targets due to its pathological modulatory properties, while baicalin demonstrated promise as a novel vehicle for ischaemic heart disease.
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Affiliation(s)
- Yiqiang Xue
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China
| | - Xiaorong Shui
- Laboratory of Vascular Surgery, Guangdong Medical College, Zhanjiang, China
| | - Weiqing Su
- Department of Cardiovascular Medicine, The People's Hospital of Lianjiang, Zhanjiang, China
| | - Yuan He
- Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang, China
| | - Xinlin Lu
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China
| | - Yu Zhang
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China
| | - Guosen Yan
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China.,Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang, China
| | - Shian Huang
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China
| | - Wei Lei
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China.,Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang, China
| | - Can Chen
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China.,Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang, China
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Wang JZ, Yan XM, Li ZC, Luo HJ, Huang NY, Deng WQ. Neuroprotective effect of bisabolangelone on hydrogen peroxide-induced neurotoxicity in SH-SY5Y cells. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1421-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu P, Yan S, Chen M, Chen A, Yao D, Xu X, Cai X, Wang L, Huang X. Effects of baicalin on collagen Ι and collagen ΙΙΙ expression in pulmonary arteries of rats with hypoxic pulmonary hypertension. Int J Mol Med 2015; 35:901-8. [PMID: 25716558 PMCID: PMC4356435 DOI: 10.3892/ijmm.2015.2110] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Accepted: 02/13/2015] [Indexed: 01/10/2023] Open
Abstract
The synthesis and accumulation of collagen play an important role in the formation and progression of hypoxic pulmonary hypertension. Baicalin has been reported to prevent bleomycin-induced pulmonary fibrosis. However, the role of baicalin in the treatment of pulmonary hypertension remains unknown. A disintegrin and metalloprotease with thrombospondin type-1 motif (ADAMTS-1) is a secreted enzyme that acts on a wide variety of extracellular matrix (ECM) substrates associated with vascular diseases. In this study, we aimed to investigate the effects of baicalin on the synthesis of collagen I in rats with pulmonary hypertension induced by hypoxia and the changes in ADAMTS-1 expression. A total of 24 Sprague Dawley rats were randomly assigned to 3 groups as follows: the control group (C), the hypoxia group (H) and the hypoxia + baicalin group (B). The rats in groups H and B were kept in a normobaric hypoxic chamber for 4 weeks, and the rats in group C were exposed to room air. We measured the hemodynamic indexes, including mean pulmonary artery pressure (mPAP), mean systemic (carotid) artery pressure (mSAP), and then calculated the mass ratio of right ventricle to left ventricle plus septum [RV/(LV + S)] to reflect the extent of right ventricular hypertrophy. We measured the mRNA and protein expression levels of type I collagen, type III collagen and ADAMTS-1 by hybridization in situ, and immunohistochemistry and western blot analysis, respectively. The results revealed that treatment with baicalin significantly reduced pulmonary artery pressure and attenuated the remodeling of the pulmonary artery under hypoxic conditions by increasing the expression of ADAMTS-1, so that the synthesis of type I collagen and its mRNA expression were inhibited. In conclusion, baicalin effectively inhibits the synthesis of collagen I in pulmonary arteries and this is associated with an increase in the expression of ADAMTS-1. Thus, treatment with baicalin may be an effective method for lowering pulmonary artery pressure and preventing pulmonary artery remodeling.
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Affiliation(s)
- Panpan Liu
- Intensive Care Unit, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang 315040, P.R. China
| | - Shuangquan Yan
- Division of Respiratory Medicine, Taizhou Enze Medical Center Luqiao Hospital, Taizhou, Zhejiang 318050, P.R. China
| | - Mayun Chen
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University and Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325035, P.R. China
| | - Ali Chen
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University and Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325035, P.R. China
| | - Dan Yao
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University and Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325035, P.R. China
| | - Xiaomei Xu
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University and Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325035, P.R. China
| | - Xueding Cai
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University and Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325035, P.R. China
| | - Liangxing Wang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University and Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325035, P.R. China
| | - Xiaoying Huang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University and Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325035, P.R. China
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