1
|
Dik B, Parlak TM, Ates MB, Tufan O. Exploring the combined therapeutic efficacy of bexarotene and icariin in type 2 diabetic rats. J Pharm Pharmacol 2024:rgae100. [PMID: 39024515 DOI: 10.1093/jpp/rgae100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 07/03/2024] [Indexed: 07/20/2024]
Abstract
OBJECTIVES The aim of this study was to determine the single and combined antidiabetic activity and side effects of the retinoid X receptor agonist bexarotene and the thioredoxin-interacting protein inhibitor and peroxisome proliferator-activated receptor γ and AMP-activated protein kinase activator icariin. METHODS The rats were grouped as healthy (control), diabetes, diabetes + bexarotene (20 mg/kg), diabetes + icariin (60 mg/kg), diabetes + bexarotene (10 mg/kg) + icariin (30 mg/kg) low-dose combination and diabetes + bexarotene (20 mg/kg) + icariin (60 mg/kg) high-dose combination groups. KEY FINDINGS Icariin treatment led to a significant reduction in glucose levels compared with the diabetes control group, a remarkable outcome observed 45 days after the initial application. HbA1c levels of the icariin and low-dose combination treatment groups were significantly lower than in the diabetes group. Notably, icariin treatment also significantly elevated HOMA-β levels, which is indicative of improved β-cell function. Icariin significantly decreased glucose levels at 30 and 120 min in the oral glucose tolerance test. Moreover, it ameliorated hepatocyte degeneration, hepatic cord dissociation, congestion, mononuclear cell infiltration in the liver, and degeneration in the pancreas. CONCLUSIONS Icariin treatment exhibited robust antidiabetic effects with fewer side effects than other treatment options in this study. In future studies, long-term and varying doses of icariin will contribute to the development of novel antidiabetic drugs.
Collapse
Affiliation(s)
- Burak Dik
- Department of Pharmacology and Toxicology, Selcuk University, Konya, 42130, Türkiye
| | - Tugba Melike Parlak
- Department of Pharmacology and Toxicology, Selcuk University, Konya, 42130, Türkiye
| | | | - Oznur Tufan
- Department of Pharmacology and Toxicology, Selcuk University, Konya, 42130, Türkiye
| |
Collapse
|
2
|
Dou B, Zhu Y, Sun M, Wang L, Tang Y, Tian S, Wang F. Mechanisms of Flavonoids and Their Derivatives in Endothelial Dysfunction Induced by Oxidative Stress in Diabetes. Molecules 2024; 29:3265. [PMID: 39064844 PMCID: PMC11279171 DOI: 10.3390/molecules29143265] [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: 06/07/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
Diabetic complications pose a significant threat to life and have a negative impact on quality of life in individuals with diabetes. Among the various factors contributing to the development of these complications, endothelial dysfunction plays a key role. The main mechanism underlying endothelial dysfunction in diabetes is oxidative stress, which adversely affects the production and availability of nitric oxide (NO). Flavonoids, a group of phenolic compounds found in vegetables, fruits, and fungi, exhibit strong antioxidant and anti-inflammatory properties. Several studies have provided evidence to suggest that flavonoids have a protective effect on diabetic complications. This review focuses on the imbalance between reactive oxygen species and the antioxidant system, as well as the changes in endothelial factors in diabetes. Furthermore, we summarize the protective mechanisms of flavonoids and their derivatives on endothelial dysfunction in diabetes by alleviating oxidative stress and modulating other signaling pathways. Although several studies underline the positive influence of flavonoids and their derivatives on endothelial dysfunction induced by oxidative stress in diabetes, numerous aspects still require clarification, such as optimal consumption levels, bioavailability, and side effects. Consequently, further investigations are necessary to enhance our understanding of the therapeutic potential of flavonoids and their derivatives in the treatment of diabetic complications.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Furong Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250300, China
| |
Collapse
|
3
|
Chen XL, Li SX, Ge T, Zhang DD, Wang HF, Wang W, Li YZ, Song XM. Epimedium Linn: A Comprehensive Review of Phytochemistry, Pharmacology, Clinical Applications and Quality Control. Chem Biodivers 2024:e202400846. [PMID: 38801026 DOI: 10.1002/cbdv.202400846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/25/2024] [Accepted: 05/27/2024] [Indexed: 05/29/2024]
Abstract
Epimedium genus is a traditional Chinese medicine, which has functions of tonifying kidney and yang, strengthening tendons and bones, dispelling wind and emoving dampness. It is mainly used for the treatment of impotence and spermatorrhea, osteoporosis, Parkinson's, Alzheimer's, and cardiovascular diseases. The aim of this review is to provide a systematic summary of the phytochemistry, pharmacology, and clinical applications of the Epimedium Linn. In this paper, the relevant literature on Epimedium Linn. was collected from 1987 to the present day, and more than 274 chemical constituents, including flavonoids, phenylpropanoids, lignans, phenanthrenes, and others, were isolated from this genus. Modern pharmacological studies have shown that Epimedium Linn. has osteoprotective, neuroprotective, cardiovascular protective, and immune enhancing pharmacological effects. In addition, Epimedium Linn. has been commonly used to treat osteoporosis, erectile dysfunction, hypertension and cardiovascular disease. In this paper, the distribution of resources, chemical compositions, pharmacological effects, clinical applications and quality control of Epimedium Linn. are progressed to provide a reference for further research and development of the resources of this genus.
Collapse
Affiliation(s)
- Xiao-Lin Chen
- School of Pharmacy, Shaanxi Key Laboratory of Research and Application of "Taibai Qi Yao", Shaanxi University of Chinese Medicine, Xianyang, 712046, P. R. China
| | - Shi-Xing Li
- School of Pharmacy, Shaanxi Key Laboratory of Research and Application of "Taibai Qi Yao", Shaanxi University of Chinese Medicine, Xianyang, 712046, P. R. China
| | - Teng Ge
- Shaanxi Province Key Laboratory of Integrated Traditional Chinese and Western Medicine for the Prevention and Treatment of Cardiovascular Diseases, Xianyang, 712046, P. R. China
| | - Dong-Dong Zhang
- School of Pharmacy, Shaanxi Key Laboratory of Research and Application of "Taibai Qi Yao", Shaanxi University of Chinese Medicine, Xianyang, 712046, P. R. China
| | - Hai-Fang Wang
- School of Pharmacy, Shaanxi Key Laboratory of Research and Application of "Taibai Qi Yao", Shaanxi University of Chinese Medicine, Xianyang, 712046, P. R. China
| | - Wei Wang
- Shaanxi Province Key Laboratory of Integrated Traditional Chinese and Western Medicine for the Prevention and Treatment of Cardiovascular Diseases, Xianyang, 712046, P. R. China
| | - Yu-Ze Li
- School of Pharmacy, Shaanxi Key Laboratory of Research and Application of "Taibai Qi Yao", Shaanxi University of Chinese Medicine, Xianyang, 712046, P. R. China
| | - Xiao-Mei Song
- School of Pharmacy, Shaanxi Key Laboratory of Research and Application of "Taibai Qi Yao", Shaanxi University of Chinese Medicine, Xianyang, 712046, P. R. China
| |
Collapse
|
4
|
Wang D, Yan B, Wang A, Sun Q, Pang J, Cui Y, Tian G. Tu-Xian Decoction ameliorates diabetic cognitive impairment by inhibiting DAPK-1. Chin J Nat Med 2023; 21:950-960. [PMID: 38143108 DOI: 10.1016/s1875-5364(23)60428-5] [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: 03/20/2023] [Indexed: 12/26/2023]
Abstract
Tu-Xian decoction (TXD), a traditional Chinese medicine (TCM) formula, has been frequently administered to manage diabetic cognitive impairment (DCI). Despite its widespread use, the mechanisms underlying TXD's protective effects on DCI have yet to be fully elucidated. As a significant regulator in neurodegenerative conditions, death-associated protein kinase-1 (DAPK-1) serves as a focus for understanding the action of TXD. This study was designed to whether TXD mediates its beneficial outcomes by inhibiting DAPK-1. To this end, a diabetic model was established using Sprague-Dawley (SD) rats through a high-fat, high-sugar (HFHS) diet regimen, followed by streptozotocin (STZ) injection. The experimental cohort was stratified into six groups: Control, Diabetic, TC-DAPK6, high-dose TXD, medium-dose TXD, and low-dose TXD groups. Following a 12-week treatment period, various assessments-including blood glucose levels, body weight measurements, Morris water maze (MWM) testing for cognitive function, brain magnetic resonance imaging (MRI), and histological analyses using hematoxylin-eosin (H&E), and Nissl staining-were conducted. Protein expression in the hippocampus was quantified through Western blotting analysis. The results revealed that TXD significantly improved spatial learning and memory abilities, and preserved hippocampal structure in diabetic rats. Importantly, TXD administration led to a down-regulation of proteins indicative of neurological damage and suppressed DAPK-1 activity within the hippocampal region. These results underscore TXD's potential in mitigating DCIvia DAPK-1 inhibition, positioning it as a viable therapeutic candidate for addressing this condition. Further investigation into TXD's molecular mechanisms may elucidate new pathways for the treatment of DCI.
Collapse
Affiliation(s)
- Danyang Wang
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Beijing 100730, China; Chinese Academy of Mediucal Sciences & Peking Union Medical College, Beijing 100730, China
| | - Bin Yan
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Beijing 100730, China
| | - An Wang
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Beijing 100730, China; Chinese Academy of Mediucal Sciences & Peking Union Medical College, Beijing 100730, China
| | - Qing Sun
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Beijing 100730, China
| | - Junyi Pang
- Department of Pathology, Peking Union Medical College Hospital, State Key Laboratory of Complex Severe and Rare Disease, Molecular Pathology Research Center, Beijing 100730, China
| | - Yangming Cui
- Animal Research Laboratory Platform, Peking Union Medical College Hospital, the National Science and Technology Key Infrastructure on Translational Medicine, Beijing 100730, China
| | - Guoqing Tian
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Beijing 100730, China.
| |
Collapse
|
5
|
Liu FY, Ding DN, Wang YR, Liu SX, Peng C, Shen F, Zhu XY, Li C, Tang LP, Han FJ. Icariin as a potential anticancer agent: a review of its biological effects on various cancers. Front Pharmacol 2023; 14:1216363. [PMID: 37456751 PMCID: PMC10347417 DOI: 10.3389/fphar.2023.1216363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023] Open
Abstract
Numerous chemical compounds used in cancer treatment have been isolated from natural herbs to address the ever-increasing cancer incidence worldwide. Therein is icariin, which has been extensively studied for its therapeutic potential due to its anti-inflammatory, antioxidant, antidepressant, and aphrodisiac properties. However, there is a lack of comprehensive and detailed review of studies on icariin in cancer treatment. Given this, this study reviews and examines the relevant literature on the chemopreventive and therapeutic potentials of icariin in cancer treatment and describes its mechanism of action. The review shows that icariin has the property of inhibiting cancer progression and reversing drug resistance. Therefore, icariin may be a valuable potential agent for the prevention and treatment of various cancers due to its natural origin, safety, and low cost compared to conventional anticancer drugs, while further research on this natural agent is needed.
Collapse
Affiliation(s)
- Fang-Yuan Liu
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Dan-Ni Ding
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yun-Rui Wang
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Shao-Xuan Liu
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Cheng Peng
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Fang Shen
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiao-Ya Zhu
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Chan Li
- First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Li-Ping Tang
- Harbin Medical University Cancer Hospital, Harbin, China
| | - Feng-Juan Han
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| |
Collapse
|
6
|
Zheng X, Dong Z, Liang Z, Liu Y, Yin X, Han M, Cui Z, Mei X, Gao X. Photothermally responsive icariin and carbon nanofiber modified hydrogels for the treatment of periodontitis. Front Bioeng Biotechnol 2023; 11:1207011. [PMID: 37260832 PMCID: PMC10227505 DOI: 10.3389/fbioe.2023.1207011] [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: 04/16/2023] [Accepted: 05/02/2023] [Indexed: 06/02/2023] Open
Abstract
Introduction: Periodontitis is a chronic inflammatory disease brought on by various bacteria, and effective antibacterial, anti-inflammatory and alveolar bone regeneration are the main goals of treating periodontal disease. Methods: In the current work, we employed Icariin (ICA) into a hydrogel modified with carbon nanofiber (CNF) to create a multifunctional composite nanoplatform. The composite was activated in the near infrared (NIR) to treat periodontitis. Results: The antibacterial results showed that the ICA+CNF@H showed 94.2% and 91.7% clearance of S. aureus and E. coli, respectively, under NIR irradiation. In vitro experiments showed that NIR-irradiated composites suppressed inflammatory factor (IL-6) and ROS expression and up-regulated the performance of anti-inflammatory factor (IL-10) in RAW264.7 cells. At the same time, the composites promoted the production of osteogenic factors in BMSCs, with an approximately 3-fold increase in alkaline phosphatase activity after 7 days and an approximately 2-fold increase in the rate of extracellular matrix mineralization after 21 days. In vivo tests showed that the alveolar bone height was clearly greater in the ICA+CNF@H (NIR) group compared to the periodontitis group. Discussion: In conclusion, ICA+CNF@H under NIR irradiation achieved a synergistic effect of antibacterial, anti-inflammatory, reduction of reactive oxygen species and promotion of osteogenesis, offering a novel approach for treating periodontitis.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Xifan Mei
- *Correspondence: Xifan Mei, ; Xiuqiu Gao,
| | - Xiuqiu Gao
- *Correspondence: Xifan Mei, ; Xiuqiu Gao,
| |
Collapse
|
7
|
Retraction: APPL1-Mediating Leptin Signaling Contributes to Proliferation and Migration of Cancer Cells. PLoS One 2023; 18:e0283346. [PMID: 36920975 PMCID: PMC10016670 DOI: 10.1371/journal.pone.0283346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
|
8
|
Khezri MR, Nazari-Khanamiri F, Mohammadi T, Moloodsouri D, Ghasemnejad-Berenji M. Potential effects of icariin, the Epimedium-derived bioactive compound in the treatment of COVID-19: a hypothesis. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:1019-1027. [PMID: 35657423 PMCID: PMC9163523 DOI: 10.1007/s00210-022-02262-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/28/2022] [Indexed: 11/01/2022]
Abstract
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has affected the world's health systems for more than two years. This disease causes a high mortality rate followed by cytokine storm-induced oxidative stress and acute respiratory distress syndrome (ARDS). Therefore, many drugs have been considered with emphasis on their anti-inflammatory and antioxidant effects in controlling the consequences of SARS-CoV-2 infection. Icariin is a major bioactive pharmaceutical compound derived from Epimedium plants, which is known due to its anti-inflammatory and antioxidant effects. Additionally, the protective effects of icariin have been studied in different pathologies through modulating intracellular pathways. In addition to the potential effect of this compound on inflammation and oxidative stress caused by SARS-CoV-2 infection, it appears to interfere with intracellular pathways involved in viral entry into the cell. Therefore, this paper aims to review the molecular mechanisms of anti-inflammatory and antioxidant properties of icariin, and hypothesizes its potential to inhibit SARS-CoV-2 entry into host cells through modulating the intracellular pathways.
Collapse
Affiliation(s)
- Mohammad Rafi Khezri
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Fereshteh Nazari-Khanamiri
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Tooba Mohammadi
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | - Donya Moloodsouri
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Morteza Ghasemnejad-Berenji
- Department of Pharmacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran.
- Research Center for Experimental and Applied Pharmaceutical Sciences, Urmia University of Medical Sciences, Urmia, Iran.
| |
Collapse
|
9
|
Astragaloside IV attenuates high glucose-induced human keratinocytes injury via TGF-β/Smad signaling pathway. J Tissue Viability 2022; 31:678-686. [PMID: 36028386 DOI: 10.1016/j.jtv.2022.08.002] [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: 11/28/2021] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVES In this study, we have investigated the effect of Astragaloside IV on keratinocytes' proliferation, migration, oxidative stress, apoptosis, inflammation, and relevant signaling pathway, using human keratinocytes exposed to high glucose. BACKGROUND Astragaloside IV is one of the main active ingredients of Astragalus membranaceus (Fisch.) Bunge. Previous studies have found that Astragaloside IV exerts positive effects in various disease models and promotes wound healing. METHODS Cell proliferation and migration of keratinocytes, oxidative stress indicators, cell apoptosis rate, inflammatory factors, and key proteins in the TGF-β/Smad signaling pathway were evaluated by molecular biology/biochemical techniques, fluorescence microscope, and flow cytometry. RESULTS High glucose inhibited the cell proliferation and migration of keratinocytes, upregulated the levels of MDA, ROS, IL-6, IL-8, and Smad7, and decreased the levels of SOD, IL-10, TGF-β1, p-Smad2, and p-Smad3. Astragaloside IV attenuated the dysfunction of keratinocytes, oxidative stress, cell apoptosis, and inflammation, but activated TGF-β/Smad signaling pathway. Meanwhile, the addition of SB431542 (the inhibitor of TGF-β/Smad signaling pathway) eliminated the impact of Astragaloside IV on high glucose-induced keratinocytes. CONCLUSIONS These results strongly suggest that Astragaloside IV may be a potential drug candidate for accelerating diabetic wound healing, by protecting keratinocytes against damages induced by high glucose and TGF-β/Smad pathway is involved in this process at the cellular level.
Collapse
|
10
|
Zeng Y, Xiong Y, Yang T, Wang Y, Zeng J, Zhou S, Luo Y, Li L. Icariin and its metabolites as potential protective phytochemicals against cardiovascular disease: From effects to molecular mechanisms. Biomed Pharmacother 2022; 147:112642. [DOI: 10.1016/j.biopha.2022.112642] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 01/07/2022] [Accepted: 01/12/2022] [Indexed: 02/06/2023] Open
|
11
|
Yang W, Han YH, Wang HC, Lu CT, Yu XC, Zhao YZ. Intradermal injection of icariin-HP-β-cyclodextrin improved traumatic brain injury via the trigeminal epineurium-brain dura pathway. J Drug Target 2022; 30:557-566. [PMID: 35023434 DOI: 10.1080/1061186x.2021.2023159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The lower bioavailability after oral administration limited icariin applications in Central Nervous System. Icariin/HP-β-cyclodextrin (HP-β-CD) inclusion complex was prepared for acute severe opening traumatic brain injury (TBI) via facial intradermal(i.d.) in mystacial pad. After fluid percussion-induced TBI, icariin/HP-β-CD at 0.4 mg/kg i.d. preserved more neurons and oligodendrocytes than intranasal injection (i.n.) or intravenous injection via tail vein (i.v.) and decreased microglia and astrocyte activation. Icariin/HP-β-CD i.d. reduced apoptosis in cortical penumbra while i.n. and i.v. showed weak or no effects. Icariin/HP-β-CD i.d. reduced Evans blue leakage and altered CD34, ZO-1, Claudin-5 and beta-catenin expression after TBI. Moreover, icariin/HP-β-CD promoted human umbilical vein endothelial cells proliferation. Thus, Icariin/HP-β-CD i.d. improved TBI, including blood brain barrier opening. Fluorescein 5-isothiocyanate (FITC) and 3,3'-Dioctadecyloxacarbocyanine perchlorate (DiOC18(3)) mimic HP-β-CD and icariin respectively. FITC and DiOC18(3) were similarly delivered to trigeminal epineurium, perineurium and perivascular spaces or tissues, caudal dura mater and scattered in trigeminal fasciculus, indicating that icariin/HP-β-CD was delivered to brain via trigeminal nerve-dura mater-brain pathways. In sum, intradermal injection in mystacial pad might delivered icariin/HP-β-CD to brain and icariin/HP-β-CD improved acute severe opening TBI.
Collapse
Affiliation(s)
- Wei Yang
- School of pharmaceutics sciences, Wenzhou medical university, Wenzhou city, Zhejiang province, China
| | - Yong-Hui Han
- School of pharmaceutics sciences, Wenzhou medical university, Wenzhou city, Zhejiang province, China
| | - Heng-Cai Wang
- School of pharmaceutics sciences, Wenzhou medical university, Wenzhou city, Zhejiang province, China
| | - Cui-Tao Lu
- School of pharmaceutics sciences, Wenzhou medical university, Wenzhou city, Zhejiang province, China
| | - Xi-Chong Yu
- School of pharmaceutics sciences, Wenzhou medical university, Wenzhou city, Zhejiang province, China
| | - Ying-Zheng Zhao
- School of pharmaceutics sciences, Wenzhou medical university, Wenzhou city, Zhejiang province, China
| |
Collapse
|
12
|
Zhang Z, Liu H, Hu X, He Y, Li L, Yang X, Wang C, Hu M, Tao S. Heat Shock Protein 70 Mediates the Protective Effect of Naringenin on High-Glucose-Induced Alterations of Endothelial Function. Int J Endocrinol 2022; 2022:7275765. [PMID: 35958293 PMCID: PMC9359828 DOI: 10.1155/2022/7275765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/02/2022] [Indexed: 11/17/2022] Open
Abstract
Endothelial dysfunction plays a pivotal role in the development and progression of diabetic vascular complications. Naringenin (Nar) is a flavanone bioactive isolated from citrus fruits known to have in vitro and in vivo antidiabetic properties. However, whether Nar affects endothelial function remains unclear in diabetes or under high-glucose (HG) condition. Using an in vitro model of hyperglycemia in human umbilical vein endothelial cells (HUVECs), we found that Nar administration markedly attenuated HG-induced alterations of endothelial function, evidenced by the mitigation of oxidative stress and inflammation, the reduction of cell adhesion molecular expressions, and the improvement of insulin resistance. We also found that HG exposure significantly reduced the levels of intracellular heat shock protein 70 (iHSP70 or iHSPA1A) and the release of HSP70 from HUVECs. HSP70 depletion mimicked and clearly diminished the protective effects of Nar on HG-induced alterations of endothelial function. In addition, Nar treatment significantly enhanced iHSP70 protein levels through a transcription-dependent manner. These results demonstrated that Nar could protect HUVECs against HG-induced alterations of endothelial function through upregulating iHSP70 protein levels. These findings are also helpful in providing new therapeutic strategies that are promising in the clinical use of Nar for the treatment of diabetes and diabetic complications.
Collapse
Affiliation(s)
- Zhihan Zhang
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Hui Liu
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xiang Hu
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Yikang He
- Tongji Medical College Huazhong University of Science and Technology, School of Nursing, Wuhan 430030, China
| | - Lu Li
- Department of Pathology and Pathophysiology, Wuhan University Taikang Medical School (School of Basic Medical Sciences), Wuhan 430071, China
| | - Xinyu Yang
- Department of Pathology and Pathophysiology, Wuhan University Taikang Medical School (School of Basic Medical Sciences), Wuhan 430071, China
| | - Changhua Wang
- Department of Pathology and Pathophysiology, Wuhan University Taikang Medical School (School of Basic Medical Sciences), Wuhan 430071, China
| | - Mingbai Hu
- Department of Breast and Thyroid Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Shengxiang Tao
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| |
Collapse
|
13
|
Rashnavadi MH, Tahmasebi Z, Piravar Z, Gholi AM. N-Acetyl-L-cysteine effects on oxidative stress-induced high glucose-cultured human dermal fibroblasts. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
14
|
He W, Liu H, Hu L, Wang Y, Huang L, Liang A, Wang X, Zhang Q, Chen Y, Cao Y, Li S, Wang J, Lei X. Icariin improves testicular dysfunction via enhancing proliferation and inhibiting mitochondria-dependent apoptosis pathway in high-fat diet and streptozotocin-induced diabetic rats. Reprod Biol Endocrinol 2021; 19:168. [PMID: 34753504 PMCID: PMC8576896 DOI: 10.1186/s12958-021-00851-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 10/23/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Diabetes mellitus (DM), a chronic metabolic disease, severely impairs male reproductive function. However, the underpinning mechanisms are still incompletely defined, and there are no effective strategies or medicines for these reproductive lesions. Icariin (ICA), the main active component extracted from Herba epimedii, is a flavonoid traditionally used to treat testicular dysfunction. Whether ICA can improve male reproductive dysfunction caused by DM and its underlying mechanisms are still unclear. In this study, by employing metformin as a comparative group, we evaluated the protective effects of ICA on male reproductive damages caused by DM and explored the possible mechanisms. METHODS Rats were fed with a high fat diet (HFD) and then intraperitoneally injected with streptozotocin (STZ) to induce diabetes. Diabetic rats were randomly divided into T2DM + saline group, T2DM + metformin group and T2DM + ICA group. Rats without the treatment of HFD and STZ were used as control group. The morphology of testicular tissues was examined by histological staining. The mRNA expression levels were determined by quantitative real-time PCR. Immunostaining detected the protein levels of proliferating cell nuclear antigen (PCNA), hypoxia-inducible factor 1-alpha (HIF-1α) and sirtuin 1 (SIRT1) in testicular tissues. TUNEL assay was performed to determine cell apoptosis in the testicular tissues. The protein expression levels of HIF-1α and SIRT1 in the testicular tissues were determined by western blot assay. RESULTS ICA effectively improved male reproductive dysfunction of diabetic rats. ICA administration significantly decreased fasting blood glucose (FBG) and insulin resistance index (IRI). In addition, ICA increased testis weight, epididymis weight, sperm number, sperm motility and the cross-sectional area of seminiferous tubule. ICA recovered the number of spermatogonia, primary spermatocytes and Sertoli cells. Furthermore, ICA upregulated the expression of PCNA, activated SRIT1-HIF-1α signaling pathway, and inhibited intrinsic mitochondria dependent apoptosis pathway by upregulating the expression of Bcl-2 and downregulating the expression of Bax and caspase 3. CONCLUSION These results suggest that ICA could attenuate male reproductive dysfunction of diabetic rats possibly via increasing cell proliferation and decreasing cell apoptosis of testis. ICA potentially represents a novel therapeutic strategy against DM-induced testicular damages.
Collapse
Affiliation(s)
- Weiguo He
- grid.412017.10000 0001 0266 8918Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001 China
| | - Huiqing Liu
- grid.412017.10000 0001 0266 8918Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001 China
| | - Linlin Hu
- grid.460081.bReproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000 China
| | - Yaohui Wang
- grid.417409.f0000 0001 0240 6969School of Basic Medical Sciences, Zunyi Medical University, Zunyi, 563000 China
| | - Lane Huang
- grid.412017.10000 0001 0266 8918Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001 China
| | - Aihong Liang
- grid.412017.10000 0001 0266 8918Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001 China
| | - Xuan Wang
- grid.412017.10000 0001 0266 8918Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001 China
| | - Qing Zhang
- grid.417409.f0000 0001 0240 6969School of Basic Medical Sciences, Zunyi Medical University, Zunyi, 563000 China
| | - Yi Chen
- grid.417409.f0000 0001 0240 6969School of Basic Medical Sciences, Zunyi Medical University, Zunyi, 563000 China
| | - Yi Cao
- grid.417409.f0000 0001 0240 6969School of Basic Medical Sciences, Zunyi Medical University, Zunyi, 563000 China
| | - Suyun Li
- grid.412017.10000 0001 0266 8918Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001 China
| | - Junli Wang
- grid.460081.bReproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000 China
| | - Xiaocan Lei
- grid.412017.10000 0001 0266 8918Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001 China
| |
Collapse
|
15
|
Yao W, Wang K, Wang X, Li X, Dong J, Zhang Y, Ding X. Icariin ameliorates endothelial dysfunction in type 1 diabetic rats by suppressing ER stress via the PPARα/Sirt1/AMPKα pathway. J Cell Physiol 2021; 236:1889-1902. [PMID: 32770555 DOI: 10.1002/jcp.29972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 07/11/2020] [Accepted: 07/14/2020] [Indexed: 12/15/2022]
Abstract
Icariin (ICA), as a flavonoid glycoside, is associated with the improvement of vascular complications in diabetes. However, its protective mechanisms remain to be well-established. Here, we tested the hypothesis that ICA attenuates vascular endothelial dysfunction by inhibiting endoplasmic reticulum (ER) stress in type 1 diabetes. In streptozotocin-induced diabetic rats, ICA positively affected acetylcholine-induced vasodilation and phenylephrine-induced vasoconstriction in aortas. ICA treatment significantly attenuated ER stress in diabetic rats and high-glucose induced human umbilical vein endothelial cells. Incubation with ICA in vitro attenuated vascular reactivity in diabetic rats, which was blocked by the ER stress inducer, and peroxisome proliferator-activated receptor α (PPARα), sirtuin1 (Sirt1), or AMP-activated protein kinase-α (AMPKα) inhibitors. Western blot showed that ICA activated the PPARα/Sirt1/AMPKα pathway, which contributed to reducing ER stress and activating endothelial nitric oxide synthase in vivo and vitro. Our results implicate that ICA normalizes ER stress to attenuate endothelial dysfunction by the regulation of the PPARα/Sirt1/AMPKα pathway.
Collapse
Affiliation(s)
- Wenhui Yao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Kai Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiniao Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xinran Li
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jieyan Dong
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yusheng Zhang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xuansheng Ding
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| |
Collapse
|
16
|
Hu Y, Ma X. Icariin Treatment Protects Against Gentamicin-Induced Ototoxicity via Activation of the AMPK-SIRT3 Pathway. Front Pharmacol 2021; 12:620741. [PMID: 33679402 PMCID: PMC7930742 DOI: 10.3389/fphar.2021.620741] [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: 12/07/2020] [Accepted: 01/12/2021] [Indexed: 02/03/2023] Open
Abstract
Ototoxicity is a serious health problem that greatly affects millions of people worldwide. This condition is caused by the entry of aminoglycosides into auditory hair cells, subsequently inducing reactive oxygen species (ROS) production and accumulation. Several strategies have been adopted to overcome irreversible ROS-induced hair cell loss in mammals. In recent years, icariin, a major active component of the traditional herb Epimedium, has been widely studied and revealed to have antioxidant, anti-inflammatory, and anti-apoptotic properties. In this study, we found that icariin pretreatment improved the survival rate of gentamicin-treated House Ear Institute-Organ of Corti 1 (HEI-OC1) cells and cochlear explants. Icariin remarkably suppressed HEI-OC1 cell apoptosis and inhibited ROS production in cells. Notably, icariin upregulated PGC-1α (SIRT3 promoter) and SIRT3 expression in HEI-OC1 cells. In addition, SIRT3 inhibition significantly attenuated the anti-apoptotic effect of icariin. We also found that icariin can increase AMPK phosphorylation. Further studies showed that inhibition of SIRT3 activity had no significant effect on AMPK phosphorylation. Furthermore, the AMPK inhibitor compound C significantly suppressed SIRT3 expression, meaning that AMPK, as an upstream molecule, regulates SIRT3 expression. Meanwhile, inhibition of AMPK activity significantly reduced the protective effect of icariin on gentamicin ototoxicity. Based on these results, icariin exerts its protective effect on gentamicin-induced ototoxicity via activation of the AMPK-SIRT3 signaling pathway, thus providing a new strategy for treating ototoxicity caused by aminoglycoside antibiotics.
Collapse
Affiliation(s)
- Yue Hu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiulan Ma
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
17
|
Ginsenoside Rb1 Protects Human Umbilical Vein Endothelial Cells against High Glucose-Induced Mitochondria-Related Apoptosis through Activating SIRT3 Signalling Pathway. Chin J Integr Med 2021; 27:336-344. [PMID: 33420900 DOI: 10.1007/s11655-020-3478-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To investigate whether ginsenoside Rb1 (Rb1) can protect human umbilical vein endothelial cells (HUVECs) against high glucose-induced apoptosis and examine the underlying mechanism. METHODS HUVECs were divided into 5 groups: control group (5.5 mmol/L glucose), high glucose (HG, 40 mmol/L) treatment group, Rb1 (50 µ mol/L) treatment group, Rb1 plus HG treatment group, and Rb1 and 3-(1H-1,2,3-triazol-4-yl) pyridine (3-TYP, 16 µ mol/L) plus HG treatment group. Cell viability was evaluated by cell counting kit-8 assay. Mitochondrial and intracellular reactive oxygen species were detected by MitoSox Red mitochondrial superoxide indicator and dichloro-dihydro-fluorescein diacetate assay, respectively. Annexin V/propidium iodide staining and fluorescent dye staining were used to measure the apoptosis and the mitochondrial membrane potential of HUVECs, respectively. The protein expressions of apoptosis-related proteins [Bcl-2, Bax, cleaved caspase-3 and cytochrome c (Cyt-c)], mitochondrial biogenesis-related proteins [proliferator-activated receptor gamma coactivator 1-alpha, nuclear respiratory factor-1 and mitochondrial transcription factor A)], acetylation levels of forkhead box O3a and SOD2, and sirtuin-3 (SIRT3) signalling pathway were measured by immunoblotting and immunoprecipitation. RESULTS Rb1 ameliorated survival in cells in which apoptosis was induced by high glucose (P<0.05 or P<0.01). Upon the addition of Rb1, mitochondrial and intracellular reactive oxygen species generation and malondialdehyde levels were decreased (P<0.01), while the activities of antioxidant enzymes were increased (P<0.05 or P<0.01). Rb1 preserved the mitochondrial membrane potential and reduced the release of Cyt-c from the mitochondria into the cytosol (P<0.01). In addition, Rb1 upregulated mitochondrial biogenesis-associated proteins (P<0.01). Notably, the cytoprotective effects of Rb1 were correlated with SIRT3 signalling pathway activation (P<0.01). The effect of Rb1 against high glucose-induced mitochondria-related apoptosis was restrained by 3-TYP (P<0.05 or P<0.01). CONCLUSION Rb1 could protect HUVECs from high glucose-induced apoptosis by promoting mitochondrial function and suppressing oxidative stress through the SIRT3 signalling pathway.
Collapse
|
18
|
Nwachukwu K, Rhoads E, Meek S, Bardi M. Back to nature: herbal treatment, environmental enrichment, and social play can protect against unpredictable chronic stress in Long-Evans rats (Rattus norvegicus). Psychopharmacology (Berl) 2021; 238:2999-3012. [PMID: 34333673 PMCID: PMC8325775 DOI: 10.1007/s00213-021-05917-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/30/2021] [Indexed: 11/03/2022]
Abstract
The importance of integrative biobehavioral responses to complex challenges cannot be overlooked. In this study, the synergetic effects of icariin (a flavonoid present in the plant Epimedium brevicornum), natural enrichment (NaEn), and play behavior were investigated. Rats (n = 60) were assigned to standard housing or NaEn; these two groups were subsequently divided into controls, rats receiving icariin treatments, and rats receiving icariin and allowed to play with an individual from another cage. All rats were exposed to unpredictable mild stressors for 4 weeks. At the end of the treatment, a Forced Swim Task (FST) was conducted to assess emotional regulation during an inescapable acute challenge. Biological samples were collected weekly and before and after the FST to monitor endocrine changes. Corticosterone (CORT), dehydroepiandrosterone (DHEA), and testosterone (T) were assayed. We found that icariin had a significant effect on DHEA/CORT ratios and T levels. NaEn also had a significant effect on both CORT and DHEA, but not on T levels. Play did not appear to be significantly related to the endocrine changes. The strongest positive effects on emotional resilience were observed in NaEn rats that also received icariin. Our results confirmed that using multiple channels to stimulate adaptive responses can be effective in increasing the ability of an organism to face uncertainty. Considering how quickly our life can change due to unpredictable events, our data is instrumental to a better comprehension of the many aspects of integrative biobehavioral responses.
Collapse
Affiliation(s)
- Kiana Nwachukwu
- grid.262455.20000 0001 2205 6070Department of Psychology and Neuroscience, Randolph-Macon College, Ashland, VA 23005 USA
| | - Elizabeth Rhoads
- grid.262455.20000 0001 2205 6070Department of Psychology and Neuroscience, Randolph-Macon College, Ashland, VA 23005 USA
| | - Sarah Meek
- grid.262455.20000 0001 2205 6070Department of Psychology and Neuroscience, Randolph-Macon College, Ashland, VA 23005 USA
| | - Massimo Bardi
- Department of Psychology and Neuroscience, Randolph-Macon College, Ashland, VA, 23005, USA. .,134D Copley Science Center, Randolph-Macon College, Ashland, VA, 23005, USA.
| |
Collapse
|
19
|
Sabando C, Rodríguez-Díaz M, Ide W, Pastene E, Avello M, Simirgiotis M, Rojas S, Villarroel E, Silva-Grecchi T, Gutiérrez C, Bouza R, Cicchelli B, González M, Rodríguez-Llamazares S. Improvement of endothelial function by Gunnera tinctoria extract with antioxidant properties. Biol Res 2020; 53:55. [PMID: 33228801 PMCID: PMC7684749 DOI: 10.1186/s40659-020-00322-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/18/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Gunnera tinctoria has been collected by Mapuche-Pewenche people for food and medicinal purposes. The high polyphenol content of methanolic extract from G. tinctoria leaves with chemical constituents such as ellagic acid and quercetin derivatives suggests its application to prevent endothelial dysfunction and oxidative stress. The aim of this study was to provide evidence of the protective effect of this extract on endothelial function by reducing oxidative stress induced by high D-glucose and H2O2, as well as by stimulating nitric oxide (NO) levels in human umbilical vein endothelial cells (HUVECs). RESULTS A methanolic extract with a high content of polyphenols (520 ± 30 mg gallic acid equivalents/g dry extract) was obtained from G. tinctoria leaves. Its main constituent was ellagic acid. The results of Ferric reducing antioxidant power and 2,2-diphenyl-1-picrylhydrazyl radical scavenging assays of the extract confirmed its antioxidant activity by inhibition pathway of radical species. The incubation of HUVECs with the extract decreased the apoptosis and reactive oxygen species (ROS) synthesis induced by high extracellular concentration of D-glucose or hydrogen peroxide. The extract increased endothelial NO levels and reduced vasoconstriction in human placental vessels. CONCLUSIONS This study provides evidence about the antioxidant and endothelial protective properties of methanolic G. tinctoria leaf extract. The extract improves the availability of NO in HUVECs, inhibiting the production of ROS and vasoconstriction.
Collapse
Affiliation(s)
- Constanza Sabando
- Centro de Investigación de Polímeros Avanzados (CIPA), Avda. Collao 1202, Edificio de Laboratorios, Concepción, Chile
| | | | - Walther Ide
- Centro de Investigación de Polímeros Avanzados (CIPA), Avda. Collao 1202, Edificio de Laboratorios, Concepción, Chile
| | - Edgar Pastene
- Laboratorio de Farmacognosia, Departamento de Farmacia, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile.,Laboratorio de Síntesis y Biotransformación de Productos Naturales, Universidad del Bío-Bío, Avda. Andrés Bello 720, Chillán, Chile
| | - Marcia Avello
- Laboratorio de Farmacognosia, Departamento de Farmacia, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Susana Rojas
- Laboratorio de Fisiología Vascular, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Enrique Villarroel
- Laboratorio de Fisiología Vascular, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Tiare Silva-Grecchi
- Laboratorio de Screening de Compuestos Neuroactivos, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Cristian Gutiérrez
- Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Rebeca Bouza
- Departamento de Física, E.U.P. Ferrol, Universidad de A Coruña, Avda. 19 de Febrero, s/n, 15405, Ferrol, Spain
| | - Bárbara Cicchelli
- Laboratorio de Investigación Materno-Fetal (LIMaF), Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Marcelo González
- Laboratorio de Fisiología Vascular, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile. .,Laboratorio de Investigación Materno-Fetal (LIMaF), Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile. .,Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillán, Chile.
| | - Saddys Rodríguez-Llamazares
- Centro de Investigación de Polímeros Avanzados (CIPA), Avda. Collao 1202, Edificio de Laboratorios, Concepción, Chile. .,Unidad de Desarrollo Tecnológico, Universidad de Concepción, Avda. Cordillera 2634, Coronel, Chile.
| |
Collapse
|
20
|
Wu R, Huang J, Huan R, Chen L, Yi C, Liu D, Wang M, Liu C, He H. New insights into the structure-activity relationships of antioxidative peptide PMRGGGGYHY. Food Chem 2020; 337:127678. [PMID: 32791429 DOI: 10.1016/j.foodchem.2020.127678] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/01/2020] [Accepted: 07/23/2020] [Indexed: 12/14/2022]
Abstract
The sequence and structure of antioxidant peptides play fundamental roles in their antioxidant functions. However, the structural mechanism of antioxidant peptides is still unclear. In this study, we used quantum calculations to reveal the antioxidant mechanism of the peptide PMRGGGGYHY. PMRGGGGYHY has multiple antioxidant active sites, and two tyrosine residues were determined to be the major active sites. Based on the structure-activity relationships of PMRGGGGYHY, the antioxidant activity of the modified peptide significantly improved by 4.8-fold to 9.73 ± 0.61 μmol TE/μmol. In addition, the removal of glycine residues from PMRGGGGYHY would increase the energy of the HOMOs and simplify the hydrogen bonding network, causing a significant increase in antioxidant activity. The intracellular ROS scavenging ability gradually decreased with decreasing glycine content. This same peptide has very different effects in vitro versus as a cellular antioxidant. This paper provides new insights into the structural mechanism and rational design/modification of novel antioxidant peptides.
Collapse
Affiliation(s)
- RiBang Wu
- School of Life Sciences, Central South University, Changsha 410013, China
| | - JiaFeng Huang
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Ran Huan
- School of Life Sciences, Central South University, Changsha 410013, China
| | - LeiLei Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), China; Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing Technology of Shandong Province, Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan 250100, China
| | - CuiPing Yi
- School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Dan Liu
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Meng Wang
- School of Life Sciences, Central South University, Changsha 410013, China
| | - CongLing Liu
- School of Life Sciences, Central South University, Changsha 410013, China
| | - HaiLun He
- School of Life Sciences, Central South University, Changsha 410013, China.
| |
Collapse
|
21
|
Oduro PK, Fang J, Niu L, Li Y, Li L, Zhao X, Wang Q. Pharmacological management of vascular endothelial dysfunction in diabetes: TCM and western medicine compared based on biomarkers and biochemical parameters. Pharmacol Res 2020; 158:104893. [PMID: 32434053 DOI: 10.1016/j.phrs.2020.104893] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/18/2020] [Accepted: 05/03/2020] [Indexed: 12/20/2022]
Abstract
Diabetes, a worldwide health concern while burdening significant populace of countries with time due to a hefty increase in both incidence and prevalence rates. Hyperglycemia has been buttressed both in clinical and experimental studies to modulate widespread molecular actions that effect macro and microvascular dysfunctions. Endothelial dysfunction, activation, inflammation, and endothelial barrier leakage are key factors contributing to vascular complications in diabetes, plus the development of diabetes-induced cardiovascular diseases. The recent increase in molecular, transcriptional, and clinical studies has brought a new scope to the understanding of molecular mechanisms and the therapeutic targets for endothelial dysfunction in diabetes. In this review, an attempt made to discuss up to date critical and emerging molecular signaling pathways involved in the pathophysiology of endothelial dysfunction and viable pharmacological management targets. Importantly, we exploit some Traditional Chinese Medicines (TCM)/TCM isolated bioactive compounds modulating effects on endothelial dysfunction in diabetes. Finally, clinical studies data on biomarkers and biochemical parameters involved in the assessment of the efficacy of treatment in vascular endothelial dysfunction in diabetes was compared between clinically used western hypoglycemic drugs and TCM formulas.
Collapse
Affiliation(s)
- Patrick Kwabena Oduro
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China
| | - Jingmei Fang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China
| | - Lu Niu
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China
| | - Yuhong Li
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Lin Li
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Xin Zhao
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Qilong Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China.
| |
Collapse
|
22
|
Zhang D, Liu H, Zhang Y, Li J, Fu Y, Zheng Y, Wu J, Ma M, Wen Z, Wang C. Heat shock protein 60 (HSP60) modulates adiponectin signaling by stabilizing adiponectin receptor. Cell Commun Signal 2020; 18:60. [PMID: 32272950 PMCID: PMC7147001 DOI: 10.1186/s12964-020-00546-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/06/2020] [Indexed: 12/11/2022] Open
Abstract
Adiponectin, an adipokine produced and secreted by adipocytes, is involved in regulating the development and progression of insulin resistance, diabetes, and diabetic complications. Heat shock protein 60 (HSP60) is a molecular chaperone, most commonly presenting in mitochondria and participating in the maintenance of protein homeostasis. Accumulating studies have demonstrated that the elevated circulating HSP60 and the decreased intracellular HSP60 are closely associated with diabetic complications such as diabetic cardiomyopathy. However, the underlying mechanism remains poorly understood. In the present study, we reported that HSP60 interacted directly with adiponectin receptors. Its abundance was positively associated with adiponectin action. Furthermore, HSP60 depletion markedly mitigated the protective impacts of adiponectin on high glucose-induced oxidative stress and cell apoptosis in rat cardiac H9c2 cells. In addition, HSP60 knockdown significantly enhanced proteasome activity leading to the degradation of adiponectin receptor 1. Taken together, we showed for the first time that HSP60 interacted with adiponectin receptors and mediated adiponectin signaling through stabilizing adiponectin receptor. This in vitro study also provides an alternative explanation for mechanism by which adiponectin exerts its action. Video abstract
Collapse
Affiliation(s)
- Deling Zhang
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Hua Liu
- Department of Clinical Pathology, The First People's Hospital of Lianyungang, Lianyungang, 222061, China
| | - Yemin Zhang
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Junfeng Li
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yalin Fu
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Yuyang Zheng
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Jie Wu
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Mingke Ma
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Zhongyuan Wen
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Changhua Wang
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
| |
Collapse
|
23
|
Hu L, Li L, Zhang H, Li Q, Jiang S, Qiu J, Sun J, Dong J. Inhibition of airway remodeling and inflammatory response by Icariin in asthma. Altern Ther Health Med 2019; 19:316. [PMID: 31744482 PMCID: PMC6862818 DOI: 10.1186/s12906-019-2743-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 11/04/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND Icariin (ICA) is the major active ingredient extracted from Chinese herbal medicine Epimedium, which has the effects of improving cardiovascular function, inducing tumor cell differentiation and increasing bone formation. It is still rarely reported that ICA can exert its therapeutic potential in asthma via anti-airway remodeling. The point of the study was to estimate the role of ICA in anti-. airway remodeling and its possible mechanism of action in a mouse ovalbumin. (OVA)-induced asthma model. METHODS Hematoxylin and Eosin Staining were performed for measuring airway remodeling related indicators. ELISA, Western blot and Immunohistochemistr-. y (IHC) were used for analyzing the level of protein. RT-PCR was used for analyzing the level of mRNA. RESULTS On days 1 and 8, mice were sensitized to OVA by intraperitoneal injection. From day 16 to day 43, previously sensitized mice were exposed to OVA once daily by nebulizer. Interventions were performed orally with ICA (ICA low, medium and high dose groups) or dexamethasone 1 h prior to each OVA exposure. ICA improves pulmonary function, attenuates pulmonary inflammation and airway remodeling in mice exposed to OVA. Histological and Western blot analysis of the lungs show that ICA suppressed transforming growth factor beta 1 and vascular endothelial growth factor expression. Increase in interleukin 13 and endothelin-1 in serum and bronchoalveolar lavage fluid in OVA-induced asthmatic mice are also decreased by ICA. ICA attenuates airway smooth muscle cell proliferation, as well as key factors in the MAPK/Erk pathway. CONCLUSIONS The fact that ICA can alleviate OVA-induced asthma at least partly through inhibition of ASMC proliferation via MAPK/Erk pathway provides a solid theoretical basis for ICA as a replacement therapy for asthma. These data reveal the underlying reasons of the use of ICA-rich herbs in Traditional Chinese Medicine to achieve good results in treating asthma.
Collapse
|
24
|
Icariin Promotes the Osteogenic Action of BMP2 by Activating the cAMP Signaling Pathway. Molecules 2019; 24:molecules24213875. [PMID: 31661767 PMCID: PMC6864436 DOI: 10.3390/molecules24213875] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/19/2019] [Accepted: 10/23/2019] [Indexed: 12/26/2022] Open
Abstract
Icariin (ICA) is the main active flavonoid glucoside from herbs of the genus Epimedium; in traditional Chinese medicine, these herbs have long been prescribed for the treatment of bone fractures and osteoporosis. Several studies have shown that treatment with ICA can increase osteogenic differentiation and reduce bone loss in vivo and in vitro. However, the definite signaling pathway of this osteogenic effect remains unclear. In this study, we selected bone morphogenetic protein 2 (BMP2)-induced osteoblastic differentiation of multipotent mesenchymal progenitor C2C12 cells as a model of osteoblast differentiation. We investigated the effects of ICA on C2C12 cells osteogenic differentiation and the underlying molecular mechanisms. We found that ICA could enhance BMP2-mediated osteoblastic differentiation of C2C12 cells in a dose-dependent manner. Treatment with ICA activated the cAMP/PKA/CREB signaling axis in a time-dependent manner. Blocking cAMP signaling using the PKA selective inhibitor H89 significantly inhibited the stimulatory effect of ICA on osteogenesis. Therefore, the osteoinductive potential and the low cost of ICA indicate that it is a promising alternative treatment or promoter for enhancing the therapeutic effects of BMP2.
Collapse
|
25
|
Huang G, Lin Y, Fang M, Lin D. Protective effects of icariin on dorsal random skin flap survival: An experimental study. Eur J Pharmacol 2019; 861:172600. [DOI: 10.1016/j.ejphar.2019.172600] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/25/2019] [Accepted: 08/08/2019] [Indexed: 12/26/2022]
|
26
|
Jia G, Zhang Y, Li W, Dai H. Neuroprotective role of icariin in experimental spinal cord injury via its antioxidant, anti‑neuroinflammatory and anti‑apoptotic properties. Mol Med Rep 2019; 20:3433-3439. [PMID: 31432160 DOI: 10.3892/mmr.2019.10537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 07/12/2019] [Indexed: 11/05/2022] Open
Abstract
Icariin is a type of flavonoid derived from the Chinese herbal plant Epimedium sagittatum Maxim. Mounting evidence has confirmed the beneficial effects of icariin in neurological diseases, including spinal cord injury (SCI). The aim of the present study was to investigate the neuroprotective effects of icariin in SCI and the precise underlying mechanism. The weight‑drop injury technique was applied to construct an SCI model in Sprague‑Dawley rats. Icariin (35 µmol/kg) was administered orally once daily for 7 consecutive days to examine its neuroprotective effects. The Basso, Beattie and Bresnahan scoring system was used for neurobehavioral evaluation. The water content of the injured spinal cord was measured via the dry‑wet weight method. Biochemical indices were examined by colorimetric assay using commercially available kits. Western blot analysis was used to detect protein expression. Icariin significantly accelerated the recovery of the locomotor function of SCI rats and decreased spinal cord water content. Icariin also attenuated SCI‑induced pro‑apoptotic protein expression and activity, while it increased anti‑apoptotic protein levels. In addition, icariin alleviated oxidative stress in SCI rats and decreased the levels of inflammatory molecules, including interleukin (IL)‑1β, IL‑6, tumor necrosis factor‑α, nitric oxide, nuclear factor‑κB and inducible nitric oxide synthase, and increased the expression of anti‑inflammatory proteins, including NADPH‑quinone oxidoreductase‑1, heme oxygenase‑1 and nuclear factor erythroid 2‑related factor 2 in the injured spinal cord. Therefore, icariin treatment accelerated locomotor function recovery in SCI, and its protective effects may be mediated via its antioxidant, anti‑inflammatory and anti‑apoptotic bioactivity.
Collapse
Affiliation(s)
- Guizhi Jia
- Department of Physiology, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Yuqiang Zhang
- Department of Orthopedics, First Affiliated Hospital, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Weihong Li
- Department of Physiology, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Hongliang Dai
- School of Nursing, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| |
Collapse
|