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Natallia L, Dama A, Gorica E, Darya K, Peña-Corona SI, Cortés H, Santini A, Büsselberg D, Leyva-Gómez G, Sharifi-Rad J. Genipin's potential as an anti-cancer agent: from phytochemical origins to clinical prospects. Med Oncol 2024; 41:186. [PMID: 38918260 DOI: 10.1007/s12032-024-02429-y] [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: 04/12/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024]
Abstract
This comprehensive review delves into the multifaceted aspects of genipin, a bioactive compound derived from medicinal plants, focusing on its anti-cancer potential. The review begins by detailing the sources and phytochemical properties of genipin, underscoring its significance in traditional medicine and its transition into contemporary cancer research. It then explores the intricate relationship between genipin's chemical structure and its observed anti-cancer activity, highlighting the molecular underpinnings contributing to its therapeutic potential. This is complemented by a thorough analysis of preclinical studies, which investigates genipin's efficacy against various cancer cell lines and its mechanisms of action at the cellular level. A crucial component of the review is the examination of genipin's bioavailability and pharmacokinetics, providing insights into how the compound is absorbed, distributed, metabolized, and excreted in the body. Then, this review offers a general and updated overview of the anti-cancer studies of genipin and its derivatives based on its basic molecular mechanisms, induction of apoptosis, inhibition of cell proliferation, and disruption of cancer cell signaling pathways. We include information that complements the genipin study, such as toxicity data, and we differentiate this review by including commercial status, disposition, and regulation. Also, this review of genipin stands out for incorporating information on proposals for a technological approach through its load in nanotechnology to improve its bioavailability. The culmination of this information positions genipin as a promising candidate for developing novel anti-cancer drugs capable of supplementing or enhancing current cancer therapies.
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Affiliation(s)
- Lapava Natallia
- Medicine Standardization Department of Vitebsk State Medical University, Vitebsk, Republic of Belarus.
| | - Aida Dama
- Department of Pharmacy, Faculty of Medical Sciences, Albanian University, Zogu I Blvd., 1001, Tirana, Albania
| | - Era Gorica
- Department of Pharmacy, Faculty of Medical Sciences, Albanian University, Zogu I Blvd., 1001, Tirana, Albania
- Center for Translational and Experimental Cardiology, University Hospital Zürich and University of Zürich, Wagistrasse 12, 8952, Schlieren, Zürich, Switzerland
| | - Karaliova Darya
- Medicine Standardization Department of Vitebsk State Medical University, Vitebsk, Republic of Belarus
| | - Sheila I Peña-Corona
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico
| | - Hernán Cortés
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de Mexico, Mexico
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy.
| | - Dietrich Büsselberg
- Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, P.O. Box 24144, Doha, Qatar
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico.
| | - Javad Sharifi-Rad
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul, Republic of Korea.
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Natural Monoterpenes as Potential Therapeutic Agents against Atherosclerosis. Int J Mol Sci 2023; 24:ijms24032429. [PMID: 36768748 PMCID: PMC9917110 DOI: 10.3390/ijms24032429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/28/2023] Open
Abstract
Traditional herbal medicines based on natural products play a pivotal role in preventing and managing atherosclerotic diseases, which are among the leading causes of death globally. Monoterpenes are a large class of naturally occurring compounds commonly found in many aromatic and medicinal plants. Emerging evidence has shown that monoterpenes have many biological properties, including cardioprotective effects. Remarkably, an increasing number of studies have demonstrated the therapeutic potential of natural monoterpenes to protect against the pathogenesis of atherosclerosis. These findings shed light on developing novel effective antiatherogenic drugs from these compounds. Herein, we provide an overview of natural monoterpenes' effects on atherogenesis and the underlying mechanisms. Monoterpenes have pleiotropic and multitargeted pharmacological properties by interacting with various cell types and intracellular molecular pathways involved in atherogenesis. These properties confer remarkable advantages in managing atherosclerosis, which has been recognized as a multifaceted vascular disease. We also discuss limitations in the potential clinical application of monoterpenes as therapeutic agents against atherosclerosis. We propose perspectives to give new insights into future preclinical research and clinical practice regarding natural monoterpenes.
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Li J, Ge H, Xu Y, Xie J, Yan F, Chen W. Geniposide Alleviates Oxidative Damage in Hepatocytes through Regulating miR-27b-3p/Nrf2 Axis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11544-11553. [PMID: 36084288 DOI: 10.1021/acs.jafc.2c03856] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Geniposide (GEN), a main compound extracted from Gardenia jasminoides fruit, has various biological activities including anti-inflammation, cellular damage alleviation, neuroprotection, and others. However, the effect of GEN on oxidative stress in hepatic cells is yet to be investigated. Our study uncovered that GEN eliminated excess intracellular free radicals by activating the Nrf2/ARE signaling pathway in H2O2-treated hepatocytes, while the protective effect was blocked by ML385 (an inhibitor of Nrf2). Moreover, H2O2 led to upregulation of miR-27b-3p in L02 cells, which was restrained by GEN. Overexpression of miR-27b-3p greatly weakened the antioxidant capacity of GEN in hepatocytes via directly targeting the Nrf2 gene. Our findings indicated that GEN treatment recovered H2O2-induced oxidative stress via targeting miR-27b-3p and thereby enhanced the antioxidant capacity by stimulating nuclear translocation and accumulation of Nrf2. These findings suggest that inhibition of miR-27b-3p to activate the Nrf2/ARE pathway by GEN is a potential alternative for hepatic oxidative damage alleviation.
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Affiliation(s)
- Jiaxin Li
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Hengju Ge
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yang Xu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Jiahong Xie
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Fujie Yan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Wei Chen
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China
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Yamashita H, Ohbuchi K, Nagino M, Ebata T, Tsuchiya K, Kushida H, Yokoyama Y. Comprehensive metabolome analysis for the pharmacological action of inchinkoto, a hepatoprotective herbal medicine. Metabolomics 2021; 17:106. [PMID: 34855010 DOI: 10.1007/s11306-021-01824-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 07/26/2021] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The precise pharmacological action of inchinkoto (ICKT, Yin-Chen-Hao-Tang in Chinese), a hepatoprotective herbal medicine, on total metabolic pathways has not been well investigated. OBJECTIVES The aim of this study was to explore the serum metabolites reflecting the pharmacological activity of ICKT, and mechanism of action of ICKT using serum metabolome analysis. METHODS 54 patients with obstructive jaundice due to malignancies were included in this study. ICKT was administered for 3 days. Serum and bile samples were collected before and 1 h after ICKT administration on days 1 and 4. Serum metabolome analysis including ICKT components were performed. RESULTS The levels of total/direct bilirubin, C-reactive protein, γ-glutamyl transpeptidase, and albumin in the serum were significantly improved after ICKT administration. In the serum metabolome analysis, inosine was the only elevated metabolite on days 1 and 4. Most of the metabolites which were significantly changed after ICKT administration were lipid mediators, and all decreased on day 1. Notably, the levels of many lipid mediators were increased on day 4. The difference in serum aspartic acid 1 h after ICKT administration was significantly correlated with a decrease in the levels of total bilirubin in the serum on day 4. CONCLUSIONS Using metabolome analysis, we demonstrated several metabolic changes that may be associated with the pharmacological mechanisms of ICKT. The biological implications of these metabolites should be further investigated in basic research studies.
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Affiliation(s)
- Hiromasa Yamashita
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Katsuya Ohbuchi
- Tsumura Advanced Technology Research Laboratories, Tsumura & CO., Ibaraki, Japan
| | - Masato Nagino
- Department of Gastrointestinal Surgery, Aichi Cancer Center, Nagoya, Japan
| | - Tomoki Ebata
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Kazuaki Tsuchiya
- Tsumura Advanced Technology Research Laboratories, Tsumura & CO., Ibaraki, Japan
| | - Hirotaka Kushida
- Tsumura Advanced Technology Research Laboratories, Tsumura & CO., Ibaraki, Japan
| | - Yukihiro Yokoyama
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
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Xu Y, Wang L, Cao S, Hu R, Liu R, Hua K, Guo Z, Di HJ, Hu Z. Genipin improves reproductive health problems caused by circadian disruption in male mice. Reprod Biol Endocrinol 2020; 18:122. [PMID: 33308222 PMCID: PMC7731552 DOI: 10.1186/s12958-020-00679-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 12/06/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Circadian rhythm disruption impacts a wide range of physiological processes, including fertility. However, the effect of circadian disruption on male spermatogenesis and fertility, and treatments for these effects have been largely unexplored at the molecular level. METHODS In this study, we examined the effects of genipin on improving the reproductive health problems caused by circadian disruption. Three groups of animals were fed under different conditions: control group (normal T cycle with saline), group of shortened T cycles (Light/Dark = 4 hours/4 hours) with saline, and a group of shortened T cycles with genipin by oral gavage. The male fertility was evaluated by fertility study and pups parameters analysis after successful sexual behavior and mating with female mice. We sacrificed the treated animals after 5 or 10 weeks and collected the testis, sperm and serum for histological analysis, sperm motility assay, and serum hormone detection, respectively. Furthermore, the effect of genipin was assessed by detection of progesterone secretion and steroidogenic key proteins expression, including StAR and CYP11A1, in mouse Leydig tumor MLTC-1 cells. RESULTS Male mice exposed to shortened light-dark cycles, much shorter than 24 hours, had reduced fertility with decreased sperm concentrations and sperm motility. Male mice under circadian disruption have reduced testis size and abnormal morphology, leading to lower fertility rates, reduced litter size and pup body weight. Treatment with exogenous genipin, a natural plant-derived compound, alleviated circadian disruption-induced damage to fertility and spermatogenesis and normalized testosterone, dihydrotestosterone (DHT), and androstenedione (ASD) levels in the male mice. The levels of key proteins involved in steroidogenesis, StAR and CYP11A1, were reduced in mouse testes after the circadian disruption, but genipin treatment restored the reduction. The mRNA expression of SRD5A1, which encodes an androgen synthesis enzyme, was also upregulated by genipin treatment. Furthermore, genipin treatment showed a positive effect on steroidogenesis in MLTC-1 cells, resulting in an increase in hormone secretion and the upregulation of StAR and CYP11A1. CONCLUSIONS Our results showed an association between circadian disruption and reproductive health problems in male mice and indicated that treatments with genipin have positive effects on the reproductive health of male mice with circadian rhythm disorders.
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Affiliation(s)
- Yihua Xu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Li Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Siyuan Cao
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Ruihua Hu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Rui Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Ke Hua
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Zhigang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Hong-Jie Di
- Department of Endocrinology, The Second Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, 210017, Nanjing, China.
| | - Zhigang Hu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China.
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Poria cocos polysaccharides attenuated ox-LDL-induced inflammation and oxidative stress via ERK activated Nrf2/HO-1 signaling pathway and inhibited foam cell formation in VSMCs. Int Immunopharmacol 2020; 80:106173. [DOI: 10.1016/j.intimp.2019.106173] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/24/2019] [Accepted: 12/28/2019] [Indexed: 12/31/2022]
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Wang Z, Liu H, Luo W, Cai T, Li Z, Liu Y, Gao W, Wan Q, Wang X, Wang J, Wang Y, Yang X. Regeneration of skeletal system with genipin crosslinked biomaterials. J Tissue Eng 2020; 11:2041731420974861. [PMID: 33294154 PMCID: PMC7705197 DOI: 10.1177/2041731420974861] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/30/2020] [Indexed: 12/11/2022] Open
Abstract
Natural biomaterials, such as collagen, gelatin, and chitosan, are considered as promising candidates for use in tissue regeneration treatment, given their similarity to natural tissues regarding components and structure. Nevertheless, only receiving a crosslinking process can these biomaterials exhibit sufficient strength to bear high tensile loads for use in skeletal system regeneration. Recently, genipin, a natural chemical compound extracted from gardenia fruits, has shown great potential as a reliable crosslinking reagent, which can reconcile the crosslinking effect and biosafety profile simultaneously. In this review, we briefly summarize the genipin extraction process, biosafety, and crosslinking mechanism. Subsequently, the applications of genipin regarding aiding skeletal system regeneration are discussed in detail, including the advances and technological strategies for reconstructing cartilage, bone, intervertebral disc, tendon, and skeletal muscle tissues. Finally, based on the specific pharmacological functions of genipin, its potential applications, such as its use in bioprinting and serving as an antioxidant and anti-tumor agent, and the challenges of genipin in the clinical applications in skeletal system regeneration are also presented.
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Affiliation(s)
- Zhonghan Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - He Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Wenbin Luo
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Tianyang Cai
- College of Rehabilitation, Changchun University of Chinese Medicine, Changchun, Jilin, P.R. China
| | - Zuhao Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Yuzhe Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Weinan Gao
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Qian Wan
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Xianggang Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Jincheng Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Yanbing Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Xiaoyu Yang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, P.R. China
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Wei J, Man Q, Ding C, Hu Y, Liu M, Li H, Guo F, Zhang Y, Li D, Song L, Yang H, Tang S. Proteomic Investigations of Transcription Factors Critical in Geniposide-Mediated Suppression of Alcoholic Steatosis and in Overdose-Induced Hepatotoxicity on Liver in Rats. J Proteome Res 2019; 18:3821-3830. [DOI: 10.1021/acs.jproteome.9b00140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Junying Wei
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qiong Man
- Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Chen Ding
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Institute of Biomedical Sciences, Fudan University, Shanghai 200433, China
| | - Yanzhen Hu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Mingwei Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206, China
| | - Hui Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Feifei Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yi Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Defeng Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Lei Song
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206, China
| | - Hongjun Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Shihuan Tang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
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Ishii T, Warabi E. Mechanism of Rapid Nuclear Factor-E2-Related Factor 2 (Nrf2) Activation via Membrane-Associated Estrogen Receptors: Roles of NADPH Oxidase 1, Neutral Sphingomyelinase 2 and Epidermal Growth Factor Receptor (EGFR). Antioxidants (Basel) 2019; 8:antiox8030069. [PMID: 30889865 PMCID: PMC6466580 DOI: 10.3390/antiox8030069] [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: 01/21/2019] [Revised: 03/07/2019] [Accepted: 03/13/2019] [Indexed: 12/12/2022] Open
Abstract
Membrane-associated estrogen receptors (ER)-α36 and G protein-coupled estrogen receptor (GPER) play important roles in the estrogen’s rapid non-genomic actions including stimulation of cell proliferation. Estrogen via these receptors induces rapid activation of transcription factor nuclear factor-E2-related factor 2 (Nrf2), a master regulator of detoxification and antioxidant systems, playing a key role in the metabolic reprogramming to support cell proliferation. This review highlights the possible mechanism underlying rapid Nrf2 activation via membrane-associated estrogen receptors by estrogen and phytoestrogens. Stimulation of ER-α36-GPER signaling complex rapidly induces Src-mediated transactivation of epidermal growth factor receptor (EGFR) leading to a kinase-mediated signaling cascade. We propose a novel hypothesis that ER-α36-GPER signaling initially induces rapid and temporal activation of NADPH oxidase 1 to generate superoxide, which subsequently activates redox-sensitive neutral sphingomyelinase 2 generating the lipid signaling mediator ceramide. Generation of ceramide is required for Ras activation and ceramide-protein kinase C ζ-casein kinase 2 (CK2) signaling. Notably, CK2 enhances chaperone activity of the Cdc37-Hsp90 complex supporting activation of various signaling kinases including Src, Raf and Akt (protein kinase B). Activation of Nrf2 may be induced by cooperation of two signaling pathways, (i) Nrf2 stabilization by direct phosphorylation by CK2 and (ii) EGFR-Ras-PI 3 kinase (PI3K)-Akt axis which inhibits glycogen synthase kinase 3β leading to enhanced nuclear transport and stability of Nrf2.
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Affiliation(s)
- Tetsuro Ishii
- Faculty of Medicine, University of Tsukuba, Tsukuba Ibaraki 305-8575, Japan.
| | - Eiji Warabi
- Faculty of Medicine, University of Tsukuba, Tsukuba Ibaraki 305-8575, Japan.
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Li J, Shi J, Li P, Guo X, Wang T, Liu A. Genipin attenuates hyperoxia-induced lung injury and pulmonary hypertension via targeting glycogen synthase kinase-3 β in neonatal rats. Nutrition 2019; 57:237-244. [DOI: 10.1016/j.nut.2018.05.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/06/2018] [Accepted: 05/25/2018] [Indexed: 12/18/2022]
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Yu Y, Feng R, Li J, Wang Y, Song Y, Tan G, Liu D, Liu W, Yang X, Pan H, Li S. A hybrid genipin-crosslinked dual-sensitive hydrogel/nanostructured lipid carrier ocular drug delivery platform. Asian J Pharm Sci 2018; 14:423-434. [PMID: 32104471 PMCID: PMC7032125 DOI: 10.1016/j.ajps.2018.08.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/09/2018] [Accepted: 08/22/2018] [Indexed: 01/26/2023] Open
Abstract
The objective of this study was to develop a novel hybrid genipin-crosslinked dual-sensitive hydrogel/nanostructured lipid carrier (NLC) drug delivery platform. An ophthalmic anti-inflammatory drug, baicalin (BN) was chosen as the model drug. BN-NLC was prepared using melt-emulsification combined with ultra-sonication technique. Additionally, a dual pH- and thermo-sensitive hydrogel composed of carboxymethyl chitosan (CMCS) and poloxamer 407 (F127) was fabricated by a cross-linking reaction with a nontoxic crosslinker genipin (GP). GP-CMCS/F127 hydrogel was characterized by FTIR, NMR, XRD and SEM. The swelling studies showed GP-CMCS/F127 hydrogel was both pH- and thermo-sensitive. The results of in vitro release suggested BN-NLC gel can prolong the release of baicalin comparing with BN eye drops and BN-NLC. Ex vivo cornea permeation study was evaluated using Franz diffusion cells. The apparent permeability coefficient (Papp ) of BN-NLC gel was much higher (4.46-fold) than that of BN eye drops. Through the determination of corneal hydration levels, BN-NLC gel was confirmed that had no significant irritation to cornea. Ex vivo precorneal retention experiments were carried out by a flow-through approach. The results indicated that the NLC-based hydrogel can prolong precorneal residence time. In conclusion, the hybrid NLC-based hydrogel has a promising potential for application in ocular drug delivery.
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Affiliation(s)
- Yibin Yu
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ruoxi Feng
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jinyu Li
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yuanyuan Wang
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yiming Song
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Guoxin Tan
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dandan Liu
- Liaoning Institute of Science and Technology, Benxi 117004, China
| | - Wei Liu
- Zhengzhou University, Zhengzhou 450001, China
| | - Xinggang Yang
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hao Pan
- Liaoning University, Shenyang 110016, China
| | - Sanming Li
- Shenyang Pharmaceutical University, Shenyang 110016, China
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Chen G, Sui X, Liu T, Wang H, Zhang J, Sun J, Xu T. Application of cellulase treatment in ionic liquid based enzyme-assisted extraction in combine with in-situ hydrolysis process for obtaining genipin from Eucommia ulmoides Olive barks. J Chromatogr A 2018; 1569:26-35. [DOI: 10.1016/j.chroma.2018.07.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 07/17/2018] [Accepted: 07/24/2018] [Indexed: 11/25/2022]
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NRF2 Regulates HER1 Signaling Pathway to Modulate the Sensitivity of Ovarian Cancer Cells to Lapatinib and Erlotinib. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:1864578. [PMID: 29410730 PMCID: PMC5749283 DOI: 10.1155/2017/1864578] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 09/09/2017] [Accepted: 10/16/2017] [Indexed: 12/24/2022]
Abstract
NF-E2-related factor 2 (NRF2) regulates the transcription of a battery of metabolic and cytoprotective genes. NRF2 and epidermal growth factor receptors (EGFRs/HERs) are regulators of cellular proliferation and determinants of cancer initiation and progression. NRF2 and HERs confer cancers with resistance to several therapeutic agents. Nevertheless, there is limited understanding of the regulation of HER expression and activation and the link between NRF2 and HER signalling pathways. We show that NRF2 regulates both basal and inducible expression of HER1, as treatment of ovarian cancer cells (PEO1, OVCAR3, and SKOV3) with NRF2 activator tBHQ inducing HER1, while inhibition of NRF2 by siRNA knockdown or with retinoid represses HER1. Furthermore, treatment of cells with tBHQ increased total and phosphorylated NRF2, HER1, and AKT levels and compromised the cytotoxic effect of lapatinib or erlotinib. Treatment with siRNA or retinoid antagonised the effect of tBHQ on NRF2 and HER1 levels and enhanced the sensitivity of ovarian cancer cells to lapatinib or erlotinib. Pharmacological or genetic inhibition of NRF2 and/or treatment with lapatinib or erlotinib elevated cellular ROS and depleted glutathione. This extends the understanding of NRF2 and its regulation of HER family receptors and opens a strategic target for improving cancer therapy.
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Chang CH, Wu JB, Yang JS, Lai YJ, Su CH, Lu CC, Hsu YM. The Suppressive Effects of Geniposide and Genipin on Helicobacter pylori
Infections In Vitro
and In Vivo. J Food Sci 2017; 82:3021-3028. [PMID: 29135040 DOI: 10.1111/1750-3841.13955] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 08/29/2017] [Accepted: 09/19/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Chiung-Hung Chang
- Dept. of Traditional Chinese Medicine; Tainan Municipal Hospital; Tainan Taiwan
- Dept. of Traditional Chinese Medicine; Taichung Veterans General Hospital; Taichung Taiwan
| | - Jin-Bin Wu
- School of Pharmacy; China Medical Univ.; Taichung Taiwan
| | - Jai-Sing Yang
- Dept. of Medical Research, China Medical Univ. Hospital; China Medical Univ.; Taichung Taiwan
| | - Yen-Ju Lai
- Dept. of Biological Science and Technology; China Medical Univ.; Taichung Taiwan
| | - Chiu-Hsian Su
- Dept. of Biological Science and Technology; China Medical Univ.; Taichung Taiwan
| | - Chi-Cheng Lu
- Dept. of Pharmacy; Buddhist Tzu Chi General Hospital; Hualien Taiwan
| | - Yuan-Man Hsu
- Dept. of Biological Science and Technology; China Medical Univ.; Taichung Taiwan
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Neri-Numa IA, Pessoa MG, Paulino BN, Pastore GM. Genipin: A natural blue pigment for food and health purposes. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.06.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Geniposide and geniposidic acid, modified forms of genipin, attenuate genipin-induced mitochondrial apoptosis without altering the anti-inflammatory ability in KGN cell line. Med Chem Res 2017. [DOI: 10.1007/s00044-016-1765-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Abstract
Central neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD), are one of the biggest health problems worldwide. Currently, there is no cure for these diseases. The Gardenia jasminoides fruit is a common herbal medicine in traditional Chinese medicine (TCM), and a variety of preparations are used as treatments for central nervous system (CNS) diseases. Pharmacokinetic studies suggest genipin is one of the main effective ingredients of G. jasminoides fruit extract (GFE). Accumulated research data show that genipin possesses a range of key pharmacological properties, such as anti-inflammatory, neuroprotective, neurogenic, antidiabetic, and antidepressant effects. Thus, genipin shows therapeutic potential for central neurodegenerative diseases. We review the pharmacological actions of genipin for the treatment of neurodegenerative diseases of the CNS. We also describe the potential mechanisms underlying these effects.
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Yu D, Shi M, Bao J, Yu X, Li Y, Liu W. Genipin ameliorates hypertension-induced renal damage via the angiotensin II-TLR/MyD88/MAPK pathway. Fitoterapia 2016; 112:244-53. [DOI: 10.1016/j.fitote.2016.06.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 06/16/2016] [Accepted: 06/20/2016] [Indexed: 11/17/2022]
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Combining biochemical with (1)H NMR-based metabolomics approach unravels the antidiabetic activity of genipin and its possible mechanism. J Pharm Biomed Anal 2016; 129:80-89. [PMID: 27411170 DOI: 10.1016/j.jpba.2016.06.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 06/24/2016] [Accepted: 06/24/2016] [Indexed: 02/04/2023]
Abstract
Diabetes mellitus is a typical heterogeneous metabolic disorder characterized by abnormal metabolism of carbohydrates, lipids and proteins. Genipin possesses a wide spectrum of biological activities including ameliorating effects on diabetes, but the definite mechanism of this effect remains unknown. To investigate the antidiabetic activities of genipin and explore the biochemical changes of serum endogenous metabolites on diabetic rats induced by alloxan, (1)H NMR spectroscopy coupled with multivariate data analysis was used to. All rats were randomly divided into six groups including negative control (NC) group, diabetic mellitus (DM) group, metformin hydrochloride group, high dose group of genipin, middle dose group of genipin and low dose group of genipin. Diabetes was induced by a single intraperitoneal injection of 120mg/kg body weight of alloxan. Serum samples were collected for the (1)H NMR-based metabolomics and clinical biochemical analysis. Daily oral administration of genipin (25, 50 and 100mg/kg body weight) and metformin hydrochloride (125mg/kg) for two weeks showed beneficial effects on blood glucose level (P<0.01). Significant differences in the metabolic profile as well as the result of biochemical parameters between the diabetic group and the control group were observed. The PLS-DA scores and corresponding loading plots demonstrated that genipin significantly restored the abnormal metabolic state. Detailed analysis of the altered metabolite levels indicated that genipin significantly ameliorated the disturbance in glucose metabolism, tricarboxylic acid cycle, lipid metabolism and amino acid metabolism. Genipin showed the best anti-diabetic effects at a dose of 100mg/kg in rats. This finding indicates that chemical and metabolomic approaches could be powerful tools for the investigation of the biochemical changes in pathological conditions or drug treatment.
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Qin S, Hou DX. Multiple regulations of Keap1/Nrf2 system by dietary phytochemicals. Mol Nutr Food Res 2016; 60:1731-55. [DOI: 10.1002/mnfr.201501017] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 03/27/2016] [Accepted: 03/30/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Si Qin
- Core Research Program 1515, Key Laboratory for Food Science and Biotechnology of Hunan Province; College of Food Science and Technology; Hunan Agricultural University; Changsha China
- Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients; Hunan Agricultural University; Changsha China
| | - De-Xing Hou
- Core Research Program 1515, Key Laboratory for Food Science and Biotechnology of Hunan Province; College of Food Science and Technology; Hunan Agricultural University; Changsha China
- Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients; Hunan Agricultural University; Changsha China
- The United Graduate School of Agricultural Sciences; Faculty of Agriculture; Kagoshima University; Kagoshima Japan
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Yang Y, Yang Y, Hou J, Ding Y, Zhang T, Zhang Y, Wang J, Shi C, Fu W, Cai Z. The Hydroxyl at Position C1 of Genipin Is the Active Inhibitory Group that Affects Mitochondrial Uncoupling Protein 2 in Panc-1 Cells. PLoS One 2016; 11:e0147026. [PMID: 26771380 PMCID: PMC4714807 DOI: 10.1371/journal.pone.0147026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 12/27/2015] [Indexed: 12/14/2022] Open
Abstract
Genipin (GNP) effectively inhibits uncoupling protein 2 (UCP2), which regulates the leakage of protons across the inner mitochondrial membrane. UCP2 inhibition may induce pancreatic adenocarcinoma cell death by increasing reactive oxygen species (ROS) levels. In this study, the hydroxyls at positions C10 (10-OH) and C1 (1-OH) of GNP were hypothesized to be the active groups that cause these inhibitory effects. Four GNP derivatives in which the hydroxyl at position C10 or C1 was replaced with other chemical groups were synthesized and isolated. Differences in the inhibitory effects of GNP and its four derivatives on pancreatic carcinoma cell (Panc-1) proliferation were assessed. The effects of GNP and its derivatives on apoptosis, UCP2 inhibition and ROS production were also studied to explore the relationship between GNP’s activity and its structure. The derivatives with 1-OH substitutions, geniposide (1-GNP1) and 1-ethyl-genipin (1-GNP2) lacked cytotoxic effects, while the other derivatives that retained 1-OH, 10-piv-genipin (10-GNP1) and 10-acetic acid-genipin (10-GNP2) exerted biological effects similar to those of GNP, even in the absence of 10-OH. Thus, 1-OH is the key functional group in the structure of GNP that is responsible for GNP’s apoptotic effects. These cytotoxic effects involve the induction of Panc-1 cell apoptosis through UCP2 inhibition and subsequent ROS production.
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Affiliation(s)
- Yang Yang
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifu Yang
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianwei Hou
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yue Ding
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- * E-mail: (TZ); (YD)
| | - Tong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- * E-mail: (TZ); (YD)
| | - Yong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianying Wang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chenchen Shi
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenwei Fu
- Innovation of Traditional Chinese Medicine Laboratory, College of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhenzhen Cai
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Li X, Ye F, Li L, Chang W, Wu X, Chen J. The role of HO-1 in protection against lead-induced neurotoxicity. Neurotoxicology 2015; 52:1-11. [PMID: 26542248 DOI: 10.1016/j.neuro.2015.10.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 10/05/2015] [Accepted: 10/28/2015] [Indexed: 12/01/2022]
Abstract
Lead is a pervasive and persistent environmental pollutant that exerts deleterious effects on all living organisms and continues to threaten public health on a global scale. Heme oxygenase-1 (HO-1) is a stress-inducible enzyme that mediates antioxidative and cytoprotective effects to maintain cellular redox homeostasis and protect cells from oxidative stress. This study was designed to explore the role of HO-1 in protection against lead neurotoxicity and the signaling pathways involved. Lead acetate (PbAc) exposure resulted in increased HO-1 expression in primary rat hippocampal neurons and SH-SY5Y cells. PbAc-induced intracellular reactive oxygen species (ROS) also increased, and cell viability decreased in SH-SY5Y cells. We further demonstrated that HO-1 could be induced by PbAc through the P38, ERK1/2, and PI3K/AKT signaling pathways in a ROS-dependent manner and through the JNK pathway in a ROS-independent manner. Further investigation revealed that HO-1 overexpression significantly restrained cell apoptosis and ROS production induced by PbAc in SH-SY5Y cells. Moreover, HO-1 knockdown aggravated PbAc-induced cell apoptosis and ROS production. Our results indicated that HO-1 was a novel protective factor that could efficiently inhibit PbAc-induced oxidative stress and cell death in the nervous system, thereby providing the potential therapeutic strategies for the prevention and treatment of lead-related diseases.
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Affiliation(s)
- Xiaoyi Li
- Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Fang Ye
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China; Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Lili Li
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China; Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Wei Chang
- Department of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, PR China
| | - Xiongwen Wu
- Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Jun Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China; Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
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Kim JM, Ko H, Kim SJ, Shim SH, Ha CH, Chang HI. Chemopreventive Properties of Genipin on AGS Cell Line via Induction of JNK/Nrf2/ARE Signaling Pathway. J Biochem Mol Toxicol 2015; 30:45-54. [DOI: 10.1002/jbt.21741] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/30/2015] [Accepted: 08/11/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Jee Min Kim
- College of Life Sciences & Biotechnology; Korea University, Seongbuk-gu; Seoul Republic of Korea
| | - Hyeonseok Ko
- Laboratory of Molecular Oncology, Cheil General Hospital and Women's Healthcare Center; Dankook University College of Medicine; Seoul Republic of Korea
| | - Sun-Joong Kim
- College of Life Sciences & Biotechnology; Korea University, Seongbuk-gu; Seoul Republic of Korea
| | - So Hee Shim
- Department of Microbiology, College of Medicine; Korea University, Seongbuk-gu; Seoul Republic of Korea
| | - Chang Hoon Ha
- Asan Institute for Life Sciences, University of Ulsan College of Medicine; Asan Medical Center, Songpa-gu; Seoul Republic of Korea
| | - Hyo Ihl Chang
- College of Life Sciences & Biotechnology; Korea University, Seongbuk-gu; Seoul Republic of Korea
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Abstract
Cardiovascular diseases are primary cause of death worldwide, particularly among populations with sedentary lifestyles and diets rich in animal products and processed foods. Currently, public health countermeasures to these disorders focus on costly and often marginally effective interventions administered only after the development of disease. These countermeasures are mainly palliative and fail to address the underlying causes of cardiac pathologies. Previously, the authors of this report have demonstrated that sour cherry seed kernel extract (SCSE), a nontoxic low-cost plant material, strongly preserves tissues through induction of heme oxygenase-1 (HO-1), a critical host antioxidant defense enzyme. This investigation seeks to characterize underlying mechanisms of SCSE-mediated tissue protection. Isolated hearts from Sprague-Dawley rats fed 30 mg·kg·d SCSE for 8 weeks, and untreated controls were mounted in a "working heart" apparatus and subjected to ischemia and reperfusion. A panel of cardiac functional evaluations was conducted on each heart. Infarct size assessments were made along with Western blot and immunohistochemical analysis for selected proteins involved in cardiovascular homeostasis. SCSE treatment was observed to improve postischemic cardiac functions and suppress infarct size. Analysis of the outcomes produced by this study is consistent with SCSE cardioprotection that involve interaction of Bcl-2 and HO-1.
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25
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KANG JISOOK, CHOI ILWHAN, HAN MINHO, KIM GIYOUNG, HONG SUHYUN, PARK CHEOL, HWANG HYEJIN, KIM CHEOLMIN, KIM BYUNGWOO, CHOI YUNGHYUN. The cytoprotective effects of 7,8-dihydroxyflavone against oxidative stress are mediated by the upregulation of Nrf2-dependent HO-1 expression through the activation of the PI3K/Akt and ERK pathways in C2C12 myoblasts. Int J Mol Med 2015; 36:501-10. [DOI: 10.3892/ijmm.2015.2256] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 06/10/2015] [Indexed: 11/05/2022] Open
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Ashabi G, Khalaj L, Khodagholi F, Goudarzvand M, Sarkaki A. Pre-treatment with metformin activates Nrf2 antioxidant pathways and inhibits inflammatory responses through induction of AMPK after transient global cerebral ischemia. Metab Brain Dis 2015; 30:747-54. [PMID: 25413451 DOI: 10.1007/s11011-014-9632-2] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 11/10/2014] [Indexed: 12/15/2022]
Abstract
Global cerebral ischemia arises in patients who have a variety of clinical conditions including cardiac arrest, shock and asphyxia. In spite of advances in understanding of the brain ischemia and stroke etiology, therapeutic approaches to improve ischemic injury still remain limited. It has been established that metformin can attenuate cell death in cerebral ischemia. One of the main functions of metformin is proposed to be conducted via AMP-activated protein kinase (AMPK)-dependent pathway in the experimental cerebral ischemia model. It is also established that metformin can suppress inflammation and activate Nuclear factor erythroid 2-related factor (Nrf2) pathways in neurons. In the current study, the role of metformin in regulating inflammatory and antioxidant pathways in the global cerebral ischemia was investigated. Our results indicated that pretreatment of rats by metformin attenuated cellular levels of nuclear factor-κB, Tumor Necrosis Factor alpha and Cyclooxygenase-2 which are considered as three important proteins involved in the inflammation pathway. Pretreatment by metformin increased the level of Nrf2 and heme oxygenase-1 in the hippocampus of ischemic rats compared with untreated ischemic group. Moreover, pretreatment by metformin enhanced the level of glutathione and catalase activities compared with them in ischemic group. Such protective changes detected by metformin pretreatment were reversed by injecting compound c, an AMPK inhibitor. These findings suggested that metformin might protect cells through modulating inflammatory and antioxidant pathways via induction of AMPK. However, more experimental and clinical trial studies regarding neuroprotective potential of metformin and the involved mechanisms, especially in the context of cerebral ischemic injuries, are necessary.
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Affiliation(s)
- Ghorbangol Ashabi
- Department of Physiology, Faculty of Medicine, Jundishapour Medical Sciences University, Ahwaz, Iran
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Ambegaokar SS, Kolson DL. Heme oxygenase-1 dysregulation in the brain: implications for HIV-associated neurocognitive disorders. Curr HIV Res 2015; 12:174-88. [PMID: 24862327 PMCID: PMC4155834 DOI: 10.2174/1570162x12666140526122709] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 01/20/2014] [Accepted: 01/27/2014] [Indexed: 12/17/2022]
Abstract
Heme oxygenase-1 (HO-1) is a highly inducible and ubiquitous cellular enzyme that subserves cytoprotective responses to toxic insults, including inflammation and oxidative stress. In neurodegenerative diseases such as Alzheimer’s disease, Parkinson’s disease and multiple sclerosis, HO-1 expression is increased, presumably reflecting an endogenous neuroprotective response against ongoing cellular injury. In contrast, we have found that in human immunodeficiency virus (HIV) infection of the brain, which is also associated with inflammation, oxidative stress and neurodegeneration, HO-1 expression is decreased, likely reflecting a unique role for HO-1 deficiency in neurodegeneration pathways activated by HIV infection. We have also shown that HO-1 expression is significantly suppressed by HIV replication in cultured macrophages which represent the primary cellular reservoir for HIV in the brain. HO-1 deficiency is associated with release of neurotoxic levels of glutamate from both HIV-infected and immune-activated macrophages; this glutamate-mediated neurotoxicity is suppressed by pharmacological induction of HO-1 expression in the macrophages. Thus, HO-1 induction could be a therapeutic strategy for neuroprotection against HIV infection and other neuroinflammatory brain diseases. Here, we review various stimuli and signaling pathways regulating HO-1 expression in macrophages, which could promote neuronal survival through HO-1-modulation of endogenous antioxidant and immune modulatory pathways, thus limiting the oxidative stress that can promote HIV disease progression in the CNS. The use of pharmacological inducers of endogenous HO-1 expression as potential adjunctive neuroprotective therapeutics in HIV infection is also discussed.
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Affiliation(s)
| | - Dennis L Kolson
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, 280 Clinical Research Building, 415 Curie Blvd., Philadelphia, PA 19104, USA.
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Wei J, Zhang F, Zhang Y, Cao C, Li X, Li D, Liu X, Yang H, Huang L. Proteomic investigation of signatures for geniposide-induced hepatotoxicity. J Proteome Res 2014; 13:5724-33. [PMID: 25336395 DOI: 10.1021/pr5007119] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Evaluating the safety of traditional medicinal herbs and their major active constituents is critical for their widespread usage. Geniposide, a major active constituent with a defined structure from the traditional medicinal herb Gardenia jasminoides ELLIS fruit, exhibits remarkable anti-inflammatory, antiapoptotic, and antifibrotic properties and has been used in a variety of medical fields, mainly for the treatment of liver diseases. However, geniposide-induced hepatotoxicity and methods for the early detection of hepatotoxicity have yet to be reported. In this study, geniposide-induced hepatotoxicity was investigated. In addition, candidate biomarkers for the earlier detection of geniposide-induced hepatotoxicity were identified using a label-free quantitative proteomics approach on a geniposide overdose-induced liver injury in a rat model. Using an accurate intensity-based, absolute quantification (iBAQ)-based, one-step discovery and verification approach, a candidate biomarker panel was easily obtained from individual samples in response to different conditions. To determine the biomarkers' early detection abilities, five candidate biomarkers were selected and tested using enzyme-linked immunosorbent assays (ELISAs). Two biomarkers, glycine N-methyltransferase (GNMT) and glycogen phosphorylase (PYGL), were found to indicate hepatic injuries significantly earlier than the current gold standard liver biomarker. This study provides a first insight into geniposide-induced hepatotoxicity in a rat model and describes a method for the earlier detection of this hepatotoxicity, facilitating the efficient monitoring of drug-induced hepatotoxicity.
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Affiliation(s)
- Junying Wei
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700, China
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Dong Y, Liu L, Bao Y, Hao A, Qin Y, Wen Z, Xiu Z. Biotransformation of geniposide in Gardenia jasminoides to genipin by Trichoderma harzianum CGMCC 2979. CHINESE JOURNAL OF CATALYSIS 2014. [DOI: 10.1016/s1872-2067(14)60134-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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CHOI WOOSUK, JEONG JINWOO, KIM SUNGOK, KIM GIYOUNG, KIM BYUNGWOO, KIM CHEOLMIN, SEO YONGBAE, KIM WOEYEON, LEE SANGYEOL, JO KWONHO, CHOI YOUNGJU, CHOI YUNGHYUN, KIM GUNDO. Anti-inflammatory potential of peat moss extracts in lipopolysaccharide-stimulated RAW 264.7 macrophages. Int J Mol Med 2014; 34:1101-9. [DOI: 10.3892/ijmm.2014.1881] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 07/17/2014] [Indexed: 11/06/2022] Open
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31
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Oral administration of baicalin and geniposide induces regression of atherosclerosis via inhibiting dendritic cells in ApoE-knockout mice. Int Immunopharmacol 2014; 20:197-204. [DOI: 10.1016/j.intimp.2014.02.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 02/25/2014] [Accepted: 02/25/2014] [Indexed: 01/03/2023]
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Wang R, Yang J, Liao S, Xiao G, Luo J, Zhang L, Little PJ, Chen H, Zheng W. Stereoselective Reduction of 1-O-Isopropyloxygenipin Enhances Its Neuroprotective Activity in Neuronal Cells from Apoptosis Induced by Sodium Nitroprusside. ChemMedChem 2014; 9:1397-401. [DOI: 10.1002/cmdc.201400051] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Indexed: 02/06/2023]
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3,4,5-Trihydroxycinnamic acid inhibits lipopolysaccharide (LPS)-induced inflammation by Nrf2 activation in vitro and improves survival of mice in LPS-induced endotoxemia model in vivo. Mol Cell Biochem 2014; 390:143-53. [DOI: 10.1007/s11010-014-1965-y] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 01/14/2014] [Indexed: 10/25/2022]
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Genipin induces cyclooxygenase-2 expression via NADPH oxidase, MAPKs, AP-1, and NF-κB in RAW 264.7 cells. Food Chem Toxicol 2013; 64:126-34. [PMID: 24296130 DOI: 10.1016/j.fct.2013.11.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 11/19/2013] [Accepted: 11/23/2013] [Indexed: 01/21/2023]
Abstract
Genipin is a compound found in gardenia fruit extract with diverse pharmacological activities. However, the mechanism underlying genipin-induced cyclooxygenase-2 (COX-2) expression remains unknown. In this study, we investigated the effects of genipin on COX-2 expression and determined that exposure to genipin dose-dependently enhanced the production of prostaglandin E2 (PGE2), a major COX-2 metabolite, in RAW 264.7 cells. These effects were mediated by genipin-induced activation of the COX-2 promoter, as well as AP-1 and NF-κB luciferase constructs. Phosphatidylinositol-3-kinase/Akt and MAPKs were also significantly activated by genipin, and Akt and MAPKs inhibitors (PD98059, SB20358, SP600125, and LY294002) inhibited genipin-induced COX-2 expression. Moreover, genipin increased production of the ROS and the ROS-producing NAPDH-oxidase (NOX) family oxidases, NOX2 and NOX3. Inhibition of NADPH with diphenyleneiodonium attenuated ROS production, COX-2 expression and NF-κB and AP-1 activation. These results suggest that the molecular mechanism mediating ROS-dependent COX-2 up-regulation and PGE2 production by genipin involves activation of Akt, MAPKs and AP-1/NF-κB.
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Digaleh H, Kiaei M, Khodagholi F. Nrf2 and Nrf1 signaling and ER stress crosstalk: implication for proteasomal degradation and autophagy. Cell Mol Life Sci 2013; 70:4681-94. [PMID: 23800989 PMCID: PMC11113484 DOI: 10.1007/s00018-013-1409-y] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 05/26/2013] [Accepted: 06/13/2013] [Indexed: 12/11/2022]
Abstract
The endoplasmic reticulum (ER) lumen is chemically complex and crowded with polypeptides in different stages of assembly. ER quality control monitors chaperone-assisted protein folding, stochastic errors and off-pathway intermediates. In acute conditions, potentially toxic polypeptides overflow the capacity of the chaperone system and lead to ER stress. Activation of the unfolded protein response (UPR) following ER stress buys time for non-native polypeptides to refold or be eliminated; otherwise cell death occurs. The clearance routes for deleterious proteins are endoplasmic reticulum-associated degradation (ERAD) and ER stress-activated autophagy. The ERAD pathway is a chaperone and proteasome-mediated polypeptide degradation, while autophagy applies to wider range of substances. ER stress signal transduction recruits diverse molecules and pathways upon UPR induction to compensate stress condition. NF-E2-related factor 1 (Nrf1) and Nrf2 are two transcription factors mostly known by their induction through an antioxidant response; they can also be activated by UPR machinery. Discovery of diverse molecules downstream of Nrf1 and Nrf2 has expanded our understanding of the biological impacts of these transcription factors beyond classic antioxidant activation. In this review, we summarize our current understanding of mutual relationships between Nrf1, Nrf2, and ER stress clearance mechanisms and highlight the crosstalk of specific molecules mediating these correlations.
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Affiliation(s)
- Hadi Digaleh
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahmoud Kiaei
- Department of Neurobiology and Developmental Sciences, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR 72205 USA
| | - Fariba Khodagholi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Hughes RH, Silva VA, Ahmed I, Shreiber DI, Morrison B. Neuroprotection by genipin against reactive oxygen and reactive nitrogen species-mediated injury in organotypic hippocampal slice cultures. Brain Res 2013; 1543:308-14. [PMID: 24275198 DOI: 10.1016/j.brainres.2013.11.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 11/08/2013] [Accepted: 11/16/2013] [Indexed: 12/01/2022]
Abstract
Genipin, the multipotent ingredient in Gardenia jasmenoides fruit extract (GFE), may be an effective candidate for treatment following stroke or traumatic brain injury (TBI). Secondary injury includes damage mediated by reactive oxygen species (ROS) and reactive nitrogen species (RNS), which can alter the biological function of key cellular structures and eventually lead to cell death. In this work, we studied the neuroprotective potential of genipin against damage stemming from ROS and RNS production in organotypic hippocampal slice cultures (OHSC), as well as its potential as a direct free radical scavenger. A 50 µM dose of genipin provided significant protection against tert-butyl hydroperoxide (tBHP), a damaging organic peroxide. This dosage of genipin significantly reduced cell death at 48 h compared to vehicle control (0.1% DMSO) when administered 0, 1, 6, and 24 h after addition of tBHP. Similarly, genipin significantly reduced cell death at 48 h when administered 0, 1, 2, and 6h after addition of rotenone, which generates reactive oxygen species via a more physiologically relevant mechanism. Furthermore, genipin significantly reduced both cell death and nitrite levels at 24 h caused by S-nitroso-N-acetylpenicillamine (SNAP), a direct nitric oxide (NO) donor, and successfully quenched 1,1-Diphenyl-2-picryl-hydrazyl (DPPH), a stable free radical, suggesting that genipin may act as a direct free radical scavenger. Our encouraging findings suggest that genipin should be tested in animal models of CNS injury with a significant component of ROS- and RNS-mediated damage, such as TBI and stroke, to assess its in vivo efficacy.
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Affiliation(s)
- Rebecca H Hughes
- Columbia University, Department of Biomedical Engineering, 351 Engineering Terrace, MC 8904, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Victoria A Silva
- Columbia University, Department of Biomedical Engineering, 351 Engineering Terrace, MC 8904, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Ijaz Ahmed
- Rutgers, The State University of New Jersey, Department of Biomedical Engineering, 599 Taylor Road, Piscataway, NJ 08854, USA
| | - David I Shreiber
- Rutgers, The State University of New Jersey, Department of Biomedical Engineering, 599 Taylor Road, Piscataway, NJ 08854, USA
| | - Barclay Morrison
- Columbia University, Department of Biomedical Engineering, 351 Engineering Terrace, MC 8904, 1210 Amsterdam Avenue, New York, NY 10027, USA.
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Ding Y, Zhang Y, Zhang T, Peng M, Tao JS, Ji G. A validated HPLC-MS/MS method for determination of genipin-1-o-glucuronic acid in rat plasma after administration of genipin and its application to a pharmacokinetic study. Biomed Chromatogr 2013; 28:265-74. [PMID: 24037830 DOI: 10.1002/bmc.3017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 07/10/2013] [Accepted: 07/12/2013] [Indexed: 11/07/2022]
Abstract
A sensitive and specific method was developed and validated for the quantitation of one major metabolite of genipin in rats plasma. The major metabolite was isolated from rat bile via semi-preparative HPLC technology and its chemical structure was identified as genipin-1-o-glucuronic acid (GNP-GLU), which was for the first time used as a standard compound for quantitative analysis in rat plasma after administration of genipin. The application of high-performance liquid chromatography-tandem mass spectrometry in negative mode in multiple reaction monitoring mode was investigated. Chromatographic separation was achieved on an Eclipse XDB-C18 column using a mobile phase consisting of water with 0.1% formic acid (A)-acetonitrile (B). The limit of detecation was 0.214 ng/mL and the lower limit of quantification was 0.706 ng/mL. The calibration curve was linear from 1.27 to 3810 ng/mL for plasma samples, with a correlation coefficient of 0.9924. The intra- and inter-day precisions and accuracy were all within 15%. The recoveries of GNP-GLU and puerarin were above 90.0 and 76.2%, respectively. The highly sensitive method was successfully applied to estimate pharmacokinetic parameters of GNP-GLU following oral and intravenous administration of genipin to rats.
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Affiliation(s)
- Yue Ding
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China; School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
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Jiang F, Jiang R, Zhu X, Zhang X, Zhan Z. Genipin inhibits TNF-α-induced vascular smooth muscle cell proliferation and migration via induction of HO-1. PLoS One 2013; 8:e74826. [PMID: 24013271 PMCID: PMC3754946 DOI: 10.1371/journal.pone.0074826] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 08/06/2013] [Indexed: 12/13/2022] Open
Abstract
Vascular smooth muscle cell (VSMC) proliferation and migration triggered by inflammatory stimuli contributes importantly to the pathogenesis of atherosclerosis and restenosis. On the other hand, genipin, an aglycon of geniposide, exhibits diverse pharmacological functions such as antitumor and anti-inflammatory effects. The protective effects of genipin on the cardiovascular system have also been reported. However, the molecular mechanism involved remains unknown. This study aimed to elucidate the precise function of genipin in VSMCs, focusing particularly on the role of heme oxygenase-1 (HO-1), a potent anti-inflammatory enzyme. We found that pretreatment of genipin induced HO-1 mRNA and protein levels, as well as its activity in VSMCs. Genipin inhibited TNF-α-induced VSMC proliferation and migration in a dose-dependent manner. At the molecular level, genipin prevented ERK/MAPK and Akt phosphorylation while left p38 MAPK and JNK unchanged. Genipin also blocked the increase of ROS generation induced by TNF-α. More importantly, the specific HO-1 siRNA partially abolished the beneficial effects of genipin on VSMCs. These results suggest that genipin may serve as a novel drug in the treatment of these pathologies by inducing HO-1 expression/activity and subsequently decreasing VSMC proliferation and migration.
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Affiliation(s)
- Fengrong Jiang
- Discipline of Chinese and Western Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Rilei Jiang
- Discipline of Chinese and Western Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiaojia Zhu
- Discipline of Chinese and Western Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xu Zhang
- Discipline of Chinese and Western Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- * E-mail: (XZ); (ZZ)
| | - Zhan Zhan
- Discipline of Chinese and Western Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- * E-mail: (XZ); (ZZ)
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Ma CJ, Nie AF, Zhang ZJ, Zhang ZG, Du L, Li XY, Ning G. Genipin stimulates glucose transport in C2C12 myotubes via an IRS-1 and calcium-dependent mechanism. J Endocrinol 2013; 216:353-62. [PMID: 23257267 DOI: 10.1530/joe-11-0473] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Genipin, a compound derived from Gardenia jasminoides Ellis fruits, has been used over the years in traditional Chinese medicine to treat symptoms of type 2 diabetes. However, the molecular basis for its antidiabetic effect has not been fully revealed. In this study, we investigated the effects of genipin on glucose uptake and signaling pathways in C(2)C(12) myotubes. Our study demonstrates that genipin stimulated glucose uptake in a time- and dose-dependent manner. The maximal effect was achieved at 2 h with a concentration of 10 μM. In myotubes, genipin promoted glucose transporter 4 (GLUT4) translocation to the cell surface, which was observed by analyzing their distribution in subcellular membrane fraction, and increased the phosphorylation of insulin receptor substrate-1 (IRS-1), AKT, and GSK3β. Meanwhile, genipin increased ATP levels, closed K(ATP) channels, and then increased the concentration of calcium in the cytoplasm in C(2)C(12) myotubes. Genipin-stimulated glucose uptake could be blocked by both the PI3-K inhibitor wortmannin and calcium chelator EGTA. Moreover, genipin increases the level of reactive oxygen species and ATP in C(2)C(12) myotubes. These results suggest that genipin activates IRS-1, PI3-K, and downstream signaling pathway and increases concentrations of calcium, resulting in GLUT4 translocation and glucose uptake increase in C(2)C(12) myotubes.
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Affiliation(s)
- Chan-Juan Ma
- Shanghai Key Laboratory of Endocrine Tumor, Shanghai Jiao-Tong University School of Medicine, Shanghai Institute of Endocrinology and Metabolism, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Rui-Jin Hospital, 197 Rui-Jin 2nd Road, Shanghai 200025, People's Republic of China
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Liu H, Chen YF, Li F, Zhang HY. Fructus Gardenia (Gardenia jasminoides J. Ellis) phytochemistry, pharmacology of cardiovascular, and safety with the perspective of new drugs development. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 15:94-110. [PMID: 23211013 DOI: 10.1080/10286020.2012.723203] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The phytochemistry, cardiovascular pharmacology, toxicology, side effect, and further development prospects of Gardenia jasminoides J. Ellis (GJE) and its main constituents crocins and iridoid glycosides were studied. Numerous studies have confirmed that crocins and iridoid glycosides had effects of antioxidation, anti-inflammatory, anti-atherosclerosis, anti-ischemic brain injuries, anti-platelet aggregation, anti-hyperglycemia, anti-hyperlipidemia, anti-hypertension, and so on. Some of them might be related to several attractive pharmacodynamic actions of GJE such as promoting endothelium growth, protecting neurons, and inducing their differentiation. Both of them make it possible for GJE to prevent and cure thromboembolism and cardiovascular diseases well. From our own basic pharmacological research of GJE extract on several rat models, it has been known that GJE extract markedly prolonged bleeding time and inhibited platelet aggregation and thrombosis. It has significant proliferation effect on both endothelial cells and endothelial progenitor cells as well. As the mechanisms of GJE on those diseases were discussed and summarized, questions about its genetoxicity and hepatotoxicity were also discussed during its safety study to make the foundation for long-term medication and clinical research in the near future.
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Affiliation(s)
- Hao Liu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.
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41
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Lai JY. Biocompatibility of genipin and glutaraldehyde cross-linked chitosan materials in the anterior chamber of the eye. Int J Mol Sci 2012; 13:10970-10985. [PMID: 23109832 PMCID: PMC3472724 DOI: 10.3390/ijms130910970] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 08/02/2012] [Accepted: 08/27/2012] [Indexed: 11/23/2022] Open
Abstract
Chitosan is a naturally occurring cationic polysaccharide and has attracted much attention in the past decade as an important ophthalmic biomaterial. We recently demonstrated that the genipin (GP) cross-linked chitosan is compatible with human retinal pigment epithelial cells. The present work aims to further investigate the in vivo biocompatibility of GP-treated chitosan (GP-chi group) by adopting the anterior chamber of a rabbit eye model. The glutaraldehyde (GTA) cross-linked samples (GTA-chi group) were used for comparison. The 7-mm-diameter membrane implants made from either non-cross-linked chitosan or chemically modified materials with a cross-linking degree of around 80% were inserted in the ocular anterior chamber for 24 weeks and characterized by slit-lamp and specular microscopic examinations, intraocular pressure measurements, and corneal thickness measurements. The interleukin-6 expressions at mRNA level were also detected by quantitative real-time reverse transcription polymerase chain reaction. Results of clinical observations showed that the overall ocular scores in the GTA-chi groups were relatively high. In contrast, the rabbits bearing GP-chi implants in the anterior chamber of the eye exhibited no signs of ocular inflammation. As compared to the non-cross-linked counterparts, the GP-chi samples improved the preservation of corneal endothelial cell density and possessed better anti-inflammatory activities, indicating the benefit action of the GP cross-linker. In summary, the intracameral tissue response to the chemically modified chitosan materials strongly depends on the selection of cross-linking agents.
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Affiliation(s)
- Jui-Yang Lai
- Institute of Biochemical and Biomedical Engineering, Chang Gung University, Taoyuan 33302, Taiwan; E-Mail: ; Tel.: +886-3-211-8800 (ext. 3598); Fax: +886-3-211-8668
- Biomedical Engineering Research Center, Chang Gung University, Taoyuan 33302, Taiwan
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan
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42
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Jin GH, Park SY, Kim E, Ryu EY, Kim YH, Park G, Lee SJ. Anti-inflammatory activity of Bambusae Caulis in Taeniam through heme oxygenase-1 expression via Nrf-2 and p38 MAPK signaling in macrophages. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2012; 34:315-323. [PMID: 22683523 DOI: 10.1016/j.etap.2012.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 04/30/2012] [Accepted: 05/06/2012] [Indexed: 06/01/2023]
Abstract
Recently, it has been reported that several natural extracts have anti-inflammatory effects through HO-1 induction. In this study, we used the ethyl acetate fraction of Bambusae Caulis in Taeniam (BCE) to investigate its anti-inflammatory effect on macrophages stimulated with LPS from Porphyromonas gingivalis. BCE inhibited the production of pro-inflammatory cytokines in P. gingivalis LPS-stimulated RAW264.7 cells. BCE also suppressed the nuclear translocation of NF-κB and AP-1. A selective inhibitor of HO-1 attenuated BCE's inhibitory effects on the production of pro-inflammatory cytokines. BCE also dose-dependently increased HO-1 expression at both the mRNA and the protein levels. BCE increased nuclear translocation of Nrf-2. Finally, a specific inhibitor of p38 reduced BCE-induced HO-1 expression and BCE-induced phosphorylation of p38 MAPK. BCE induced anti-inflammatory effects by activating Nrf-2-mediated HO-1 induction via p38 signaling in P. gingivalis LPS-stimulated macrophages. This result indicates that BCE is a promising therapeutic agent for combating periodontitis.
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Affiliation(s)
- Gwi Hae Jin
- Department of Microbiology, Pusan National University, Busan 609-735, Republic of Korea
| | - Sun Young Park
- Bio-IT Fusion Technology Research Institute, Busan, Republic of Korea
| | - Eunkyoung Kim
- Department of Quality Assurance, Qsstem Implant, Busan, Republic of Korea
| | - Eun Yeon Ryu
- Bio-IT Fusion Technology Research Institute, Busan, Republic of Korea
| | - Young Hun Kim
- Bio-IT Fusion Technology Research Institute, Busan, Republic of Korea
| | - Geuntae Park
- Institute for Research & Industry Cooperation, Busan, Republic of Korea
| | - Sang Joon Lee
- Department of Microbiology, Pusan National University, Busan 609-735, Republic of Korea.
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Genipin inhibits lipopolysaccharide-induced acute systemic inflammation in mice as evidenced by nuclear factor-κB bioluminescent imaging-guided transcriptomic analysis. Food Chem Toxicol 2012; 50:2978-86. [DOI: 10.1016/j.fct.2012.05.054] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Revised: 04/19/2012] [Accepted: 05/30/2012] [Indexed: 11/22/2022]
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44
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Wang J, Hou J, Zhang P, Li D, Zhang C, Liu J. Geniposide Reduces Inflammatory Responses of Oxygen-Glucose Deprived Rat Microglial Cells via Inhibition of the TLR4 Signaling Pathway. Neurochem Res 2012; 37:2235-48. [DOI: 10.1007/s11064-012-0852-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 07/02/2012] [Accepted: 07/20/2012] [Indexed: 12/11/2022]
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45
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Kim MC, Kim DS, Kim SJ, Park J, Kim HL, Kim SY, Ahn KS, Jang HJ, Lee SG, Lee KM, Hong SH, Um JY. Eucommiae Cortex Inhibits TNF-α and IL-6 Through the Suppression of Caspase-1 in Lipopolysaccharide-Stimulated Mouse Peritoneal Macrophages. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 40:135-49. [DOI: 10.1142/s0192415x12500115] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Eucommiae cortex (EC) is used in various traditional Korean medicines in the form of tonics, analgesics, and sedatives. However, the underlying mechanism of its anti-inflammatory effect remains unclear. This study attempts to determine the effects of EC on lipopolysaccharide (LPS)-induced inflammatory responses in mouse peritoneal macrophages. The findings of the study show that EC inhibits the LPS-induced production of tumor necrosis factor-alpha and interleukin-6. Exposure to EC also reduces an inflammation-induced increase in the levels of cyclooxigenase-2 and the production of prostaglandin E 2 and nitric oxide in mouse peritoneal macrophages. Furthermore, EC suppresses the activation of nuclear factor-kappa B and caspase-1. These results provide novel insights into the pharmacological action of EC and indicate that EC has a potential in the treatment of inflammatory diseases.
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Affiliation(s)
- Min-Cheol Kim
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Jeonbuk 570-749, Republic of Korea
| | - Dae-Seung Kim
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Jeonbuk 570-749, Republic of Korea
| | - Su-Jin Kim
- Department of Cosmeceutical Science, Daegu Haany University, Kyungsan 712-715, Republic of Korea
| | - Jinbong Park
- College of Oriental Medicine, Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hye-Lin Kim
- College of Oriental Medicine, Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Seon-Young Kim
- College of Oriental Medicine, Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kwang Seok Ahn
- College of Oriental Medicine, Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyeung-Jin Jang
- College of Oriental Medicine, Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Seok-Geun Lee
- College of Oriental Medicine, Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kang-Min Lee
- Department of Molecular Biology, College of Natural Science, Chonbuk National University, Jeollabuk-do 561-756, Republic of Korea
| | - Seung-Heon Hong
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Jeonbuk 570-749, Republic of Korea
| | - Jae-Young Um
- College of Oriental Medicine, Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
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Jeon WK, Hong HY, Seo WC, Lim KH, Lee HY, Kim WJ, Song SY, Kim BC. Smad7 sensitizes A549 lung cancer cells to cisplatin-induced apoptosis through heme oxygenase-1 inhibition. Biochem Biophys Res Commun 2012; 420:288-92. [PMID: 22421218 DOI: 10.1016/j.bbrc.2012.02.151] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Accepted: 02/28/2012] [Indexed: 01/10/2023]
Abstract
Smad7, an inhibitory Smad, acts as a key regulator forming autoinhibitory feedback loop in transforming growth factor-beta (TGF-β) signaling. However, a growing body of evidences suggests that Smad7 is capable of apoptotic function. In the present study, we have demonstrated a proapoptotic function of Smad7 as a negative regulator of survival protein heme oxygenase-1 (HO-1). The HO-1 protein level was elevated in cisplatin-resistant A549 human lung cancer cells and blockade of HO-1 activation sensitized the cells to apoptosis. Interestingly, overexpression of Smad7 decreased HO-1 gene expression and its enzymatic activity. Notably, Smad7 reduced Akt activity and infection with adenovirus expressing a constitutively active form of the Akt reversed the inhibitory effects of Smad7 to HO-1, indicating a negative action mechanism of Smad7 to Akt-HO-1-linked survival pathway. Consistently, Smad7 sensitized A549 cells to cisplatin-induced apoptosis and these effects were dependent on HO-1 and Akt inhibition. Based on these findings, we suggest that targeting Smad7 may be an efficient strategy for overcoming drug-resistance in cancer therapy.
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Affiliation(s)
- Woo-Kwang Jeon
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon 200-701, Republic of Korea
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Viljoen A, Mncwangi N, Vermaak I. Anti-inflammatory iridoids of botanical origin. Curr Med Chem 2012; 19:2104-27. [PMID: 22414102 PMCID: PMC3873812 DOI: 10.2174/092986712800229005] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 01/07/2012] [Accepted: 01/08/2012] [Indexed: 11/22/2022]
Abstract
Inflammation is a manifestation of a wide range of disorders which include; arthritis, atherosclerosis, Alzheimer's disease, inflammatory bowel syndrome, physical injury and infection amongst many others. Common treatment modalities are usually nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin, paracetamol, indomethacin and ibuprofen as well as corticosteroids such as prednisone. These however, may be associated with a host of side effects due to non-selectivity for cyclooxygenase (COX) enzymes involved in inflammation and those with selectivity may be highly priced. Thus, there is a continuing search for safe and effective antiinflammatory molecules from natural sources. Research has confirmed that iridoids exhibit promising anti-inflammatory activity which may be beneficial in the treatment of inflammation. Iridoids are secondary metabolites present in various plants, especially in species belonging to the Apocynaceae, Lamiaceae, Loganiaceae, Rubiaceae, Scrophulariaceae and Verbenaceae families. Many of these ethnobotanicals have an illustrious history of traditional use alluding to their use to treat inflammation. Although iridoids exhibit a wide range of pharmacological activities such as cardiovascular, hepatoprotection, hypoglycaemic, antimutagenic, antispasmodic, anti-tumour, antiviral, immunomodulation and purgative effects this review will acutely focus on their anti-inflammatory properties. The paper aims to present a summary for the most prominent iridoid-containing plants for which anti-inflammatory activity has been demonstrated in vitro and / or in vivo.
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Affiliation(s)
- A Viljoen
- Department of Pharmaceutical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria, South Africa.
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