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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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Zhou Y, Qiu T, Wang T, Yu B, Xia K, Guo J, Liu Y, Ma X, Zhang L, Zou J, Chen Z, Zhou J. Research progress on the role of mitochondria in the process of hepatic ischemia-reperfusion injury. Gastroenterol Rep (Oxf) 2024; 12:goae066. [PMID: 38912038 PMCID: PMC11193119 DOI: 10.1093/gastro/goae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/08/2023] [Accepted: 02/26/2024] [Indexed: 06/25/2024] Open
Abstract
During liver ischemia-reperfusion injury, existing mechanisms involved oxidative stress, calcium overload, and the activation of inflammatory responses involve mitochondrial injury. Mitochondrial autophagy, a process that maintains the normal physiological activity of mitochondria, promotes cellular metabolism, improves cellular function, and facilitates organelle renewal. Mitochondrial autophagy is involved in oxidative stress and apoptosis, of which the PINK1-Parkin pathway is a major regulatory pathway, and the deletion of PINK1 and Parkin increases mitochondrial damage, reactive oxygen species production, and inflammatory response, playing an important role in mitochondrial quality regulation. In addition, proper mitochondrial permeability translational cycle regulation can help maintain mitochondrial stability and mitigate hepatocyte death during ischemia-reperfusion injury. This mechanism is also closely related to oxidative stress, calcium overload, and the aforementioned autophagy pathway, all of which leads to the augmentation of the mitochondrial membrane permeability transition pore opening and cause apoptosis. Moreover, the release of mitochondrial DNA (mtDNA) due to oxidative stress further aggravates mitochondrial function impairment. Mitochondrial fission and fusion are non-negligible processes required to maintain the dynamic renewal of mitochondria and are essential to the dynamic stability of these organelles. The Bcl-2 protein family also plays an important regulatory role in the mitochondrial apoptosis signaling pathway. A series of complex mechanisms work together to cause hepatic ischemia-reperfusion injury (HIRI). This article reviews the role of mitochondria in HIRI, hoping to provide new therapeutic clues for alleviating HIRI in clinical practice.
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Affiliation(s)
- Yujie Zhou
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Tao Qiu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Tianyu Wang
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Bo Yu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Kang Xia
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Jiayu Guo
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Yiting Liu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Xiaoxiong Ma
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Long Zhang
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Jilin Zou
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Zhongbao Chen
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Jiangqiao Zhou
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
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3
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Deng RM, Zhou J. Targeting NF-κB in Hepatic Ischemia-Reperfusion Alleviation: from Signaling Networks to Therapeutic Targeting. Mol Neurobiol 2024; 61:3409-3426. [PMID: 37991700 DOI: 10.1007/s12035-023-03787-w] [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: 09/15/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
Hepatic ischemia-reperfusion injury (HIRI) is a major complication of liver trauma, resection, and transplantation that can lead to liver dysfunction and failure. Scholars have proposed a variety of liver protection methods aimed at reducing ischemia-reperfusion damage, but there is still a lack of effective treatment methods, which urgently needs to find new effective treatment methods for patients. Many studies have reported that signaling pathway plays a key role in HIRI pathological process and liver function recovery mechanism, among which nuclear transfer factor-κB (NF-κB) signaling pathway is one of the signal transduction closely related to disease. NF-κB pathway is closely related to HIRI pathologic process, and inhibition of this pathway can delay oxidative stress, inflammatory response, cell death, and mitochondrial dysfunction. In addition, NF-κB can also interact with PI3K/Akt, MAPK, and Nrf2 signaling pathways to participate in HIRI regulation. Based on the role of NF-κB pathway in HIRI, it may be a potential target pathway for HIRI. This review emphasizes the role of inhibiting the NF-κB signaling pathway in oxidative stress, inflammatory response, cell death, and mitochondrial dysfunction in HIRI, as well as the effects of related drugs or inhibitors targeting NF-κB on HIRI. The objective of this review is to elucidate the role and mechanism of NF-κB pathway in HIRI, emphasize the important role of NF-κB pathway in the prevention and treatment of HIRI, and provide a theoretical basis for the target NF-κB pathway as a therapy for HIRI.
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Affiliation(s)
- Rui-Ming Deng
- Department of Anesthesiology, Ganzhou People's Hospital, 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China
- The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China
| | - Juan Zhou
- The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China.
- Department of Thyroid and Breast Surgery, Ganzhou People's Hospital, 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China.
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Chen P, Yao L, Yuan M, Wang Z, Zhang Q, Jiang Y, Li L. Mitochondrial dysfunction: A promising therapeutic target for liver diseases. Genes Dis 2024; 11:101115. [PMID: 38299199 PMCID: PMC10828599 DOI: 10.1016/j.gendis.2023.101115] [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: 04/14/2023] [Revised: 07/15/2023] [Accepted: 08/10/2023] [Indexed: 02/02/2024] Open
Abstract
The liver is an important metabolic and detoxification organ and hence demands a large amount of energy, which is mainly produced by the mitochondria. Liver tissues of patients with alcohol-related or non-alcohol-related liver diseases contain ultrastructural mitochondrial lesions, mitochondrial DNA damage, disturbed mitochondrial dynamics, and compromised ATP production. Overproduction of mitochondrial reactive oxygen species induces oxidative damage to mitochondrial proteins and mitochondrial DNA, decreases mitochondrial membrane potential, triggers hepatocyte inflammation, and promotes programmed cell death, all of which impair liver function. Mitochondrial DNA may be a potential novel non-invasive biomarker of the risk of progression to liver cirrhosis and hepatocellular carcinoma in patients infected with the hepatitis B virus. We herein present a review of the mechanisms of mitochondrial dysfunction in the development of acute liver injury and chronic liver diseases, such as hepatocellular carcinoma, viral hepatitis, drug-induced liver injury, alcoholic liver disease, and non-alcoholic fatty liver disease. This review also discusses mitochondrion-centric therapies for treating liver diseases.
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Affiliation(s)
- Ping Chen
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Lichao Yao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Mengqin Yuan
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Zheng Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Qiuling Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Yingan Jiang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Lanjuan Li
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
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Shen J, Lan Y, Ji Z, Liu H. Sirtuins in intervertebral disc degeneration: current understanding. Mol Med 2024; 30:44. [PMID: 38553713 PMCID: PMC10981339 DOI: 10.1186/s10020-024-00811-0] [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: 01/09/2024] [Accepted: 03/20/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IVDD) is one of the etiologic factors of degenerative spinal diseases, which can lead to a variety of pathological spinal conditions such as disc herniation, spinal stenosis, and scoliosis. IVDD is a leading cause of lower back pain, the prevalence of which increases with age. Recently, Sirtuins/SIRTs and their related activators have received attention for their activity in the treatment of IVDD. In this paper, a comprehensive systematic review of the literature on the role of SIRTs and their activators on IVDD in recent years is presented. The molecular pathways involved in the regulation of IVDD by SIRTs are summarized, and the effects of SIRTs on senescence, inflammatory responses, oxidative stress, and mitochondrial dysfunction in myeloid cells are discussed with a view to suggesting possible solutions for the current treatment of IVDD. PURPOSE This paper focuses on the molecular mechanisms by which SIRTs and their activators act on IVDD. METHODS A literature search was conducted in Pubmed and Web of Science databases over a 13-year period from 2011 to 2024 for the terms "SIRT", "Sirtuin", "IVDD", "IDD", "IVD", "NP", "Intervertebral disc degeneration", "Intervertebral disc" and "Nucleus pulposus". RESULTS According to the results, SIRTs and a large number of activators showed positive effects against IVDD.SIRTs modulate autophagy, myeloid apoptosis, oxidative stress and extracellular matrix degradation. In addition, they attenuate inflammatory factor-induced disc damage and maintain homeostasis during disc degeneration. Several clinical studies have reported the protective effects of some SIRTs activators (e.g., resveratrol, melatonin, honokiol, and 1,4-dihydropyridine) against IVDD. CONCLUSION The fact that SIRTs and their activators play a hundred different roles in IVDD helps to better understand their potential to develop further treatments for IVDD. NOVELTY This review summarizes current information on the mechanisms of action of SIRTs in IVDD and the challenges and limitations of translating their basic research into therapy.
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Affiliation(s)
- Jianlin Shen
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
- Central Laboratory, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
| | - Yujian Lan
- School of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Ziyu Ji
- School of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China.
| | - Huan Liu
- Department of Orthopaedics, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, China.
- The Third People's Hospital of Longmatan District, Luzhou, 646000, Sichuan, China.
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Piao C, Wang Y, Lu X, Liu T, Ma Y, Li Y, Zhang J, Wang H. Met-Exo attenuates mitochondrial dysfunction after hepatic ischemia-reperfusion injury in rats by modulating AMPK/SIRT1 signaling pathway. Free Radic Biol Med 2024; 213:430-442. [PMID: 38301977 DOI: 10.1016/j.freeradbiomed.2024.01.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Hepatic ischemia-reperfusion injury (IRI) results in significant postoperative liver dysfunction, and the intricate mechanism of IRI poses challenges in developing effective therapeutic drugs. Mitigating the damage caused by hepatic IRI and promoting the repair of postoperative liver injury have become focal points in recent years, holding crucial clinical significance. Adipose mesenchymal stem cell derived exosomes (ADSCs-Exo) and metformin (Met) can play a mitochondrial protective role in the treatment of hepatic IRI, but whether there is a synergistic mechanism for their intervention is not yet known. Combining the unique advantages of exosomes as drug carriers, the aim of this study was to investigate the protective effects and mechanisms of the constructed Met and ADSCs-Exo complex (Met-Exo) on the liver IRI combined with partial resection injury in rat and hypoxic reoxygenation injury of rat primary hepatocytes (HCs). In this study, firstly, we detected that mitochondrial morphology and function were severely affected in hepatic tissues after hepatic IRI combined with partial resection, and then verified by in vitro experiments that Met-Exo could promote mitochondrial biosynthesis and fusion-associated protein expression and inhibit mitochondrial fission-related protein expression by modulating the AMPK/SIRT1 signalling pathway. This indicates that ADSCs-Exo can not only play a targeting role as a drug carrier but also has a great potential to act as a vehicle to act synergistically with drugs in the treatment of tissue and organ damage, which provides a new therapeutic strategy and experimental basis for the treatment of liver injury in medical science and clinical veterinary.
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Affiliation(s)
- Chenxi Piao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Yue Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Xiangyu Lu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Tao Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Yajun Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Yuepeng Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Jiantao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Hongbin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China.
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Ahmed R, Ul Ain Hira N, Wang M, Iqbal S, Yi J, Hemar Y. Genipin, a natural blue colorant precursor: Source, extraction, properties, and applications. Food Chem 2024; 434:137498. [PMID: 37741231 DOI: 10.1016/j.foodchem.2023.137498] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/25/2023]
Abstract
Natural cross-linkers are extensively employed due to their low toxicity and biocompatibility benefits. Genipin acts as a precursor for producing blue colorants. The formation of these colorants involves the cross-linking reaction between genipin and primary amines present in amino acids, peptides, and proteins. Genipin is extracted from Gardenia jasminoides and Genipa americana. This article explains the cross-linking mechanism of genipin with proteins/polysaccharides to provide an overall understanding of its properties. Furthermore, it explores new sources of genipin and innovative methodologies to make the genipin recovery process efficient. Genipin increases food products' texture, gel strength, stability, and shelf life. The antibacterial, anti-inflammatory, and antioxidant properties of chitosan, gelatin, alginate, and hyaluronic acid increased after genipin cross-linking. Lastly, drawbacks, toxicity, and directions regarding the genipin cross-linking have also been addressed. The review article covers how to recover and cross-link genipin with biopolymers for industrial applications.
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Affiliation(s)
- Rizwan Ahmed
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China; Shenzhen Key Laboratory of Food Macromolecules Science and Processing, Shenzhen University, Shenzhen, Guangdong 518060, China; Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
| | - Noor Ul Ain Hira
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China; Shenzhen Key Laboratory of Food Macromolecules Science and Processing, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Mingwei Wang
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shahid Iqbal
- School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jiang Yi
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China; Shenzhen Key Laboratory of Food Macromolecules Science and Processing, Shenzhen University, Shenzhen, Guangdong 518060, China.
| | - Yacine Hemar
- School of Natural Sciences, Massey University, Private Bag 11 222. Palmerston North, 4442, New Zealand
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Nwaduru C, Baker E, Buff M, Selim M, Ovalle LA, Baker TB, Zimmerman MA. Assessing Liver Viability: Insights From Mitochondrial Bioenergetics in Ischemia-Reperfusion Injury. Transplant Proc 2024; 56:228-235. [PMID: 38171992 DOI: 10.1016/j.transproceed.2023.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024]
Abstract
Orthotopic liver transplantation remains the definitive treatment for patients with end-stage liver disease. Unfortunately, the increasing demand for donor livers and the limited supply of viable organs have both led to a critical need for innovative strategies to expand the pool of transplantable organs. The mitochondrion, central to hepatic cellular function, plays a pivotal role in hepatic ischemic injury, with impaired mitochondrial function and oxidative stress leading to cell death. Mitochondrial protection strategies have shown promise in mitigating IRI and resuscitating marginal organs for transplant. Machine perfusion (MP) has been proven a valuable tool for reviving marginal organs with very promising results. Evaluation of liver viability during perfusion traditionally relies on parameters including lactate clearance, bile production, and transaminase levels. Nevertheless, the quest for more comprehensive and universally applicable viability markers persists. Normothermic regional perfusion has gained robust attention, offering extended recovery time for organs from donation after cardiac death donors. This approach has shown remarkable success in improving organ quality and reducing ischemic injury using the body's physiological conditions. The current challenge lies in the absence of a reliable assessment tool for predicting graft viability and post-transplant outcomes. To address this, exploring insights from mitochondrial function in the context of ischemia-reperfusion injury could offer a promising path toward better patient outcomes and graft longevity. Indeed, hypoxia-induced mitochondrial injury may serve as a surrogate marker of organ viability following oxygenated resuscitation techniques in the future.
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Affiliation(s)
- Chinedu Nwaduru
- Department of Surgery, Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah.
| | - Emma Baker
- Department of Surgery, Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Michelle Buff
- Department of Surgery, Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Motaz Selim
- Department of Surgery, Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Leo Aviles Ovalle
- Department of Surgery, Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Talia B Baker
- Department of Surgery, Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Michael A Zimmerman
- Department of Surgery, Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
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Liang J, Wei X, Hou W, Wang H, Ma R, Gao Y, Du Y, Zhang Q. Liver metabolomics reveals potential mechanism of Jieduan-Niwan formula against acute-on-chronic liver failure (ACLF) by improving mitochondrial damage and TCA cycle. Chin Med 2023; 18:157. [PMID: 38037150 PMCID: PMC10691013 DOI: 10.1186/s13020-023-00858-x] [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: 03/30/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Acute-on-chronic liver failure (ACLF) is a refractory disease with high mortality, which is characterized by a pathophysiological process of inflammation-related dysfunction of energy metabolism. Jieduan-Niwan formula (JDNWF) is a eutherapeutic Chinese medicine formula for ACLF. However, the intrinsic mechanism of its anti-ACLF effect still need to be studied systematically. PURPOSE This study aimed to investigate the mechanism of JDNWF against ACLF based on altered substance metabolic profile in ACLF the expression levels of related molecules. MATERIALS AND METHODS The chemical characteristics of JDNWF were characterized using ultra performance liquid chromatography (UPLC) coupled with triple quadrupole mass spectrometry. Wistar rats subjected to a long-term CCL4 stimulation followed by a combination of an acute attack with LPS/D-GalN were used to establish the ACLF model. Liver metabolites were analyzed by LC-MS/MS and multivariate analysis. Liver function, coagulation function, histopathology, mitochondrial metabolic enzyme activity and mitochondrial damage markers were evaluated. The protein expression of mitochondrial quality control (MQC) was investigated by western blot. RESULTS Liver function, coagulation function, inflammation, oxidative stress and mitochondrial enzyme activity were significantly improved by JDNWF. 108 metabolites are considered as biomarkers of JDNWF in treating ACLF, which were closely related to TCA cycle. It was further suggested that JDNWF alleviated mitochondrial damage and MQC may be potential mechanism of JDNWF improving mitochondrial function. CONCLUSIONS Metabolomics revealed that TCA cycle was impaired in ACLF rats, and JDNWF had a regulatory effect on it. The potential mechanism may be improving the mitochondrial function through MQC pathway, thus restoring energy metabolism.
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Affiliation(s)
- Jiajun Liang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Xiaoyi Wei
- Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Weixin Hou
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Hanjing Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Ruimin Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Yanbin Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, Beijing, 100069, China.
| | - Yuqiong Du
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, Beijing, 100069, China.
| | - Qiuyun Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, Beijing, 100069, China.
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10
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Luo C, Wang L, Wu Y, Liu M, Chen B, Lu Y, Zhang Y, Fu C, Liu X. Protective effect and possible mechanisms of geniposide for ischemia-reperfusion injury: A systematic review with meta-analysis and network pharmacology of preclinical evidence. Heliyon 2023; 9:e20114. [PMID: 37809705 PMCID: PMC10559851 DOI: 10.1016/j.heliyon.2023.e20114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/29/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023] Open
Abstract
Background Geniposide, as a pharmacologically bioactive component, is derived from a classic and common Chinese herb, Gardenia jasminoides Ellis. Geniposide has been shown to be effective for treating I/R injury in recent studies. Current effectively pharmaceutical treatments are scarce, and treatment based on geniposide may become a novel option. As far as we know, this research is the initial systematic evaluation of the protective effects of geniposide in I/R injury. Aim of the study This study is engrossed in evaluating the mechanism of action of geniposide in I/R injury through a preclinical systematic review with meta-analysis and network pharmacology. Materials and methods We built a systematic review which provided a view of effect and mechanism of geniposide for I/R injury. Based on seven databases, an open-ended search from their inception to August 31st, 2022, was conducted. Animal studies on the effects of geniposide in I/R injury were considered. The data was analyzed using Review Manager 5.3, and bias was assessed using the CAMARADES 10-item scale. 13 articles including 279 animals were selected finally. And network pharmacology was joined to elucidate the mechanism. Results According to the meta-analysis, in I/R injury, geniposide can attenuate cardiomyocytes viability and the size of MI, decrease the volume of cerebral infraction and neurological score, decrease serum ALT and AST activity, and downregulated serum Cr and BUN. The review found that geniposide protects against I/R injury by inhibiting apoptosis, oxidation, inflammation and improvement of autophagy and mitochondrial respiration, which is consistent with the results of the network pharmacology screening. Conclusion This preclinical systematic review including meta-analysis and network pharmacology, which was the first one summarizing the relationship between geniposide and ischemia diseases, shows a novel therapy for I/R injury and appears an enticing implication of geniposide in I/R injury, and further research is looked forward. Given the restricted quantity of included researches and the unclear risk of bias of the studies, we should interpret the results with caution.
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Affiliation(s)
- Chaoqin Luo
- Beijing University of Chinese Medicine, Beijing, China
| | - Lingfeng Wang
- Beijing University of Chinese Medicine, Beijing, China
| | - Yifan Wu
- Beijing University of Chinese Medicine, Beijing, China
| | - Menghan Liu
- Beijing University of Chinese Medicine, Beijing, China
| | - Baoxin Chen
- Neurology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yuqiao Lu
- Office of Academic Research, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yunling Zhang
- Department of Neurology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chen Fu
- Experimental Center of Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xuemei Liu
- Office of Academic Research, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
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11
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Wang L, Feng ZJ, Ma X, Li K, Li XY, Tang Y, Peng C. Mitochondrial quality control in hepatic ischemia-reperfusion injury. Heliyon 2023; 9:e17702. [PMID: 37539120 PMCID: PMC10395149 DOI: 10.1016/j.heliyon.2023.e17702] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/07/2023] [Accepted: 06/26/2023] [Indexed: 08/05/2023] Open
Abstract
Hepatic ischemia-reperfusion injury is a phenomenon in which exacerbating damage of liver cells due to restoration of blood flow following ischemia during liver surgery, especially those involving liver transplantation. Mitochondria, the energy-producing organelles, are crucial for cell survival and apoptosis and have evolved a range of quality control mechanisms to maintain homeostasis in the mitochondrial network in response to various stress conditions. Hepatic ischemia-reperfusion leads to disruption of mitochondrial quality control mechanisms, as evidenced by reduced mitochondrial autophagy, excessive division, reduced fusion, and inhibition of biogenesis. This leads to dysfunction of the mitochondrial network. The accumulation of damaged mitochondria ultimately results in apoptosis of hepatocytes due to the release of apoptotic proteins like cytochrome C. This worsens hepatic ischemia-reperfusion injury. Currently, hepatic ischemia-reperfusion injury protection is being studied using different approaches such as drug pretreatment, stem cells and exosomes, genetic interventions, and mechanical reperfusion, all aimed at targeting mitochondrial quality control mechanisms. This paper aims to provide direction for future research on combating HIRI by reviewing the latest studies that focus on targeting mitochondrial quality control mechanisms.
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Affiliation(s)
- LiuSong Wang
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zan Jie Feng
- Department of Biochemistry and Molecular Biology, Zunyi Medical University, Zunyi, China
| | - Xuan Ma
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Kai Li
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xin Yao Li
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yi Tang
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Cijun Peng
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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12
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Machado IF, Palmeira CM, Rolo AP. Preservation of Mitochondrial Health in Liver Ischemia/Reperfusion Injury. Biomedicines 2023; 11:948. [PMID: 36979927 PMCID: PMC10046671 DOI: 10.3390/biomedicines11030948] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/06/2023] [Accepted: 03/16/2023] [Indexed: 03/22/2023] Open
Abstract
Liver ischemia-reperfusion injury (LIRI) is a major cause of the development of complications in different clinical settings such as liver resection and liver transplantation. Damage arising from LIRI is a major risk factor for early graft rejection and is associated with higher morbidity and mortality after surgery. Although the mechanisms leading to the injury of parenchymal and non-parenchymal liver cells are not yet fully understood, mitochondrial dysfunction is recognized as a hallmark of LIRI that exacerbates cellular injury. Mitochondria play a major role in glucose metabolism, energy production, reactive oxygen species (ROS) signaling, calcium homeostasis and cell death. The diverse roles of mitochondria make it essential to preserve mitochondrial health in order to maintain cellular activity and liver integrity during liver ischemia/reperfusion (I/R). A growing body of studies suggest that protecting mitochondria by regulating mitochondrial biogenesis, fission/fusion and mitophagy during liver I/R ameliorates LIRI. Targeting mitochondria in conditions that exacerbate mitochondrial dysfunction, such as steatosis and aging, has been successful in decreasing their susceptibility to LIRI. Studying mitochondrial dysfunction will help understand the underlying mechanisms of cellular damage during LIRI which is important for the development of new therapeutic strategies aimed at improving patient outcomes. In this review, we highlight the progress made in recent years regarding the role of mitochondria in liver I/R and discuss the impact of liver conditions on LIRI.
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Affiliation(s)
- Ivo F. Machado
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
- IIIUC—Institute of Interdisciplinary Research, University of Coimbra, 3000 Coimbra, Portugal
| | - Carlos M. Palmeira
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3000 Coimbra, Portugal
| | - Anabela P. Rolo
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3000 Coimbra, Portugal
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13
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Li J, Li J, Fang H, Yang H, Wu T, Shi X, Pang C. Isolongifolene alleviates liver ischemia/reperfusion injury by regulating AMPK-PGC1α signaling pathway-mediated inflammation, apoptosis, and oxidative stress. Int Immunopharmacol 2022; 113:109185. [DOI: 10.1016/j.intimp.2022.109185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/10/2022] [Accepted: 08/18/2022] [Indexed: 11/05/2022]
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14
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Zhao L, Sun L, Li X, Lu T, Pan Y, Du P. POTENTIAL CARDIOPROTECTIVE EFFECT OF GENIPIN VIA CYCLOOXIDASE 2 SUPPRESSION AND P53 SIGNAL PATHWAY ATTENUATION IN INDUCED MYOCARDIAL INFARCTION IN RATS. Shock 2022; 58:457-463. [PMID: 36445232 DOI: 10.1097/shk.0000000000002001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
ABSTRACT Background and aims: Genipin, an iridoid derived from geniposide by β-glucosidase hydrolysis, has shown potential benefit in the treatment of heart function insufficiency despite its unclear therapeutic mechanism. This study aimed to investigate the primary cardioprotective mechanism of genipin. We hypothesized that genipin demonstrated the antiapoptosis and anti-inflammation for cardiac protection by inhibiting the cyclooxidase 2 (COX2)-prostaglandin D2 (PGD2) and murine double minute 2 (MDM2)-p53 pathways. Methods: The normal Sprague-Dawley rats were made into myocardial infarction models by conventional methods. Animals were treated with genipin for 5 weeks after myocardial infarction (MI). Morphometric and hemodynamic measurements were performed 5 weeks post-MI. Biological and molecular experiments were performed after the termination. Results: Both morphometry and hemodynamics in systole and diastole were significantly impaired in the model group but restored close to basal level after treatment with genipin. Genipin also restored the post-MI upregulated expressions of cytochrome c, p53, COX2, and PGD2 and downregulated expression of MDM2 to the approximate baseline. Genipin inhibited apoptotic and inflammatory pathways to prevent post-MI structure-function remodeling. Conclusions: This study showed the cardioprotective mechanism of genipin and implied its potential clinical application for the treatment of ischemic heart failure.
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Affiliation(s)
- Liang Zhao
- College of Life Science and Technology, First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Lulu Sun
- College of Life Science and Technology, First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Xiafei Li
- College of Medical Engineering, Xinxiang Medical University, Xinxiang, China
| | | | - Yuxue Pan
- College of Life Science and Technology, First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Pengchong Du
- College of Life Science and Technology, First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
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15
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Cai J, Chen X, Liu X, Li Z, Shi A, Tang X, Xia P, Zhang J, Yu P. AMPK: The key to ischemia-reperfusion injury. J Cell Physiol 2022; 237:4079-4096. [PMID: 36134582 DOI: 10.1002/jcp.30875] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/08/2022] [Accepted: 08/23/2022] [Indexed: 11/09/2022]
Abstract
Ischemia-reperfusion injury (IRI) refers to a syndrome in which tissue damage is further aggravated and organ function further deteriorates when blood flow is restored after a period of tissue ischemia. Acute myocardial infarction, stress ulcer, pancreatitis, intestinal ischemia, intermittent claudication, acute tubular necrosis, postshock liver failure, and multisystem organ failure are all related to reperfusion injury. AMP-activated protein kinase (AMPK) has been identified in multiple catabolic and anabolic signaling pathways. The functions of AMPK during health and diseases are intriguing but still need further research. Except for its conventional roles as an intracellular energy switch, emerging evidence reveals the critical role of AMPK in IRI as an energy-sensing signal molecule by regulating metabolism, autophagy, oxidative stress, inflammation, and other progressions. At the same time, drugs based on AMPK for the treatment of IRI are constantly being researched and applied in clinics. In this review, we summarize the mechanisms underlying the effects of AMPK in IRI and describe the AMPK-targeting drugs in treatment, hoping to increase the understanding of AMPK in IRI and provide new insights into future clinical treatment.
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Affiliation(s)
- Jie Cai
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xinyue Chen
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xingyu Liu
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhangwang Li
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ao Shi
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Biochemistry and Molecular Biology, Mayo Graduate School of Biomedical Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Xiaoyi Tang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Panpan Xia
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang, China
| | - Jing Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Peng Yu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang, China
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16
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Sousa C, Mendes AF. Monoterpenes as Sirtuin-1 Activators: Therapeutic Potential in Aging and Related Diseases. Biomolecules 2022; 12:921. [PMID: 35883477 PMCID: PMC9313249 DOI: 10.3390/biom12070921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 11/16/2022] Open
Abstract
Sirtuin 1 (SIRT) is a class III, NAD+-dependent histone deacetylase that also modulates the activity of numerous non-histone proteins through deacylation. SIRT1 plays critical roles in regulating and integrating cellular energy metabolism, response to stress, and circadian rhythm by modulating epigenetic and transcriptional regulation, mitochondrial homeostasis, proteostasis, telomere maintenance, inflammation, and the response to hypoxia. SIRT1 expression and activity decrease with aging, and enhancing its activity extends life span in various organisms, including mammals, and improves many age-related diseases, including cancer, metabolic, cardiovascular, neurodegenerative, respiratory, musculoskeletal, and renal diseases, but the opposite, that is, aggravation of various diseases, such as some cancers and neurodegenerative diseases, has also been reported. Accordingly, many natural and synthetic SIRT1 activators and inhibitors have been developed. Known SIRT1 activators of natural origin are mainly polyphenols. Nonetheless, various classes of non-polyphenolic monoterpenoids have been identified as inducers of SIRT1 expression and/or activity. This narrative review discusses current information on the evidence that supports the role of those compounds as SIRT1 activators and their potential both as tools for research and as pharmaceuticals for therapeutic application in age-related diseases.
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Affiliation(s)
- Cátia Sousa
- Centre for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3004-548 Coimbra, Portugal
- Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Alexandrina Ferreira Mendes
- Centre for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3004-548 Coimbra, Portugal
- Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal
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17
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Utami Nike D, Md Fadilah NI, Sallehuddin N, Nor Azlan AYH, Imran FH, Maarof M, Fauzi MB. Genipin-Crosslinking Effects on Biomatrix Development for Cutaneous Wound Healing: A Concise Review. Front Bioeng Biotechnol 2022; 10:865014. [PMID: 35677301 PMCID: PMC9169157 DOI: 10.3389/fbioe.2022.865014] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/15/2022] [Indexed: 12/17/2022] Open
Abstract
Split skin graft (SSG), a standard gold treatment for wound healing, has numerous limitations such as lack of fresh skin to be applied, tedious process, severe scarring, and keloid formation followed by higher risks of infection. Thus, there is a gap in producing polymeric scaffolds as an alternative for wound care management. Bioscaffold is the main component in tissue engineering technology that provides porous three-dimensional (3D) microarchitecture for cells to survive. Upon skin tissue reconstruction, the 3D-porous structure ensures sufficient nutrients and gaseous diffusion and cell penetration that improves cell proliferation and vascularization for tissue regeneration. Hence, it is highly considered a promising candidate for various skin wound healing applications. To date, natural-based crosslinking agents have been extensively used to tailor the physicochemical and mechanical properties of the skin biomatrix. Genipin (GNP) is preferable to other plant-based crosslinkers due to its biological activities, such as antiinflammatory and antioxidant, which are key players to boost skin wound healing. In addition, it has shown a noncytotoxic effect and is biocompatible with human skin cells. This review validated the effects of GNP in biomatrix fabrication for skin wound healing from the last 7 years of established research articles and stipulated the biomaterial development-scale point of view. Lastly, the possible role of GNP in the skin wound healing cascade is also discussed. Through the literature output, it can be concluded that GNP has the capability to increase the stability of biomatrix and maintain the skin cells viability, which will contribute in accelerating wound healing.
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Affiliation(s)
- Dewi Utami Nike
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nur Izzah Md Fadilah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nusaibah Sallehuddin
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ahmad Yasser Hamdi Nor Azlan
- Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, Malaysia
| | - Farrah Hani Imran
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Manira Maarof
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- *Correspondence: Mh Busra Fauzi,
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18
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PEG35 as a Preconditioning Agent against Hypoxia/Reoxygenation Injury. Int J Mol Sci 2022; 23:ijms23031156. [PMID: 35163080 PMCID: PMC8834864 DOI: 10.3390/ijms23031156] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 12/22/2022] Open
Abstract
Pharmacological conditioning is a protective strategy against ischemia/reperfusion injury, which occurs during liver resection and transplantation. Polyethylene glycols have shown multiple benefits in cell and organ preservation, including antioxidant capacity, edema prevention and membrane stabilization. Recently, polyethylene glycol 35 kDa (PEG35) preconditioning resulted in decreased hepatic injury and protected the mitochondria in a rat model of cold ischemia. Thus, the study aimed to decipher the mechanisms underlying PEG35 preconditioning-induced protection against ischemia/reperfusion injury. A hypoxia/reoxygenation model using HepG2 cells was established to evaluate the effects of PEG35 preconditioning. Several parameters were assessed, including cell viability, mitochondrial membrane potential, ROS production, ATP levels, protein content and gene expression to investigate autophagy, mitochondrial biogenesis and dynamics. PEG35 preconditioning preserved the mitochondrial function by decreasing the excessive production of ROS and subsequent ATP depletion, as well as by recovering the membrane potential. Furthermore, PEG35 increased levels of autophagy-related proteins and the expression of genes involved in mitochondrial biogenesis and fusion. In conclusion, PEG35 preconditioning effectively ameliorates hepatic hypoxia/reoxygenation injury through the enhancement of autophagy and mitochondrial quality control. Therefore, PEG35 could be useful as a potential pharmacological tool for attenuating hepatic ischemia/reperfusion injury in clinical practice.
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19
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Bryś M, Urbańska K, Olas B. Novel Findings regarding the Bioactivity of the Natural Blue Pigment Genipin in Human Diseases. Int J Mol Sci 2022; 23:902. [PMID: 35055094 PMCID: PMC8776187 DOI: 10.3390/ijms23020902] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/08/2022] [Accepted: 01/12/2022] [Indexed: 12/16/2022] Open
Abstract
Genipin is an important monoterpene iridoid compound isolated from Gardenia jasminoides J.Ellis fruits and from Genipa americana fruits, or genipap. It is a precursor of a blue pigment which may be attractive alternative to existing food dyes and it possesses various potential therapeutic properties such as anti-cancer, anti-diabetic and hepatoprotective activity. Biomedical studies also show that genipin may act as a neuroprotective drug. This review describes new aspects of the bioactivity of genipin against various diseases, as well as its toxicity and industrial applications, and presents its potential mechanism of action.
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Affiliation(s)
- Magdalena Bryś
- Department of Cytobiochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/3, 90-236 Lodz, Poland;
| | - Karina Urbańska
- Faculty of Medicine, Medical University of Lodz, 90-419 Lodz, Poland;
| | - Beata Olas
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/3, 90-236 Lodz, Poland
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20
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Meng H, Sun LK, Su J, Yan WY, Jin Y, Luo X, Jiang XR, Wang HL. Serine protease HtrA2/Omi regulates adaptive mitochondrial reprogramming in the brain cortex after ischemia/reperfusion injury via UCP2-SIRT3-PGC1 axis. Hum Cell 2021; 35:63-82. [PMID: 34807408 DOI: 10.1007/s13577-021-00610-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 09/03/2021] [Indexed: 02/06/2023]
Abstract
This study is to investigate the underlying mechanisms of mitochondrial quality control (MQC) regulated by HtrA2/Omi during ischemia/reperfusion (I/R). We utilized the mnd2 mouse model, which has a missense mutation in HtrA2/Omi, to investigate the HtrA2/Omi regulation in mitochondria after I/R injury in the cerebral cortex. Compared to homozygous (HtrA2mnd2) mice, heterozygous (HtrA2Hetero) mice showed aging signs at a later age, increased HtrA2/Omi expression in the brain cortex, and lesser neurodegenerative signs. The brain cortex of HtrA2Hetero mice had increased superoxide dismutase (SOD) activity; lower levels of malondialdehyde (MDA); higher expressions of mitochondrial unfolded protein response (mtUPR)-related proteins, NADH dehydrogenase [ubiquinone] iron-sulfur protein 7 (Ndufs7), and uncoupling protein 2 (UCP2) proteins; more mitochondrial fission; higher levels of ATP and mtDNA copies; elevated sirtuin 3 (SIRT3) activity; and increased NAD+/NADH ratio. After 1.5 h of I/R, the brain cortex of HtrA2Hetero mice had a larger infarction size, reduced HtrA2/Omi expression, decreased S-X-linked inhibitor of apoptosis protein (XIAP), and increased C-Caspase3 than that of wild-type animals (WT). Mitochondria from the HtrA2Hetero brain cortex showed decreased ATP production and MQC deficiency after 1.5 h I/R. Genipin pre-treatment reduced the aforementioned I/R injury in the HtrA2Hetero brain cortex. In conclusion, mitochondrial function is compensated in the HtrA2Hetero brain cortex via the upregulation of the UCP2-SIRT3-PGC1 axis. Decreased HtrA2/Omi function damages mitochondrial quality in the HtrA2Hetero mouse brain cortex, leading to more brain I/R injury. Genipin pre-treatment ameliorates brain damages via the mitochondrial UCP2-SIRT3-PGC1 axis.
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Affiliation(s)
- Hao Meng
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China.,Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Lian-Kun Sun
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Jing Su
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Wan-Yu Yan
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Yao Jin
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Xin Luo
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Xian-Rui Jiang
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Hong-Lei Wang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, 130021, China.
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21
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Targeting PINK1 Using Natural Products for the Treatment of Human Diseases. BIOMED RESEARCH INTERNATIONAL 2021; 2021:4045819. [PMID: 34751247 PMCID: PMC8572127 DOI: 10.1155/2021/4045819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 08/20/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022]
Abstract
PINK1, also known as PARK6, is a PTEN-induced putative kinase 1 that is encoded by nuclear genes. PINK1 is ubiquitously expressed and regulates mitochondrial function and mitophagy in a range of cell types. The dysregulation of PINK1 is associated with the pathogenesis and development of mitochondrial-associated disorders. Many natural products could regulate PINK1 to relieve PINK1-associated diseases. Here, we review the structure and function of PINK1, its relationship to human diseases, and the regulation of natural products to PINK1. We further highlight that the discovery of natural PINK1 regulators represents an attractive strategy for the treatment of PINK1-related diseases, including liver and heart diseases, cancer, and Parkinson's disease. Moreover, investigating PINK1 regulation of natural products can enhance the in-depth comprehension of the mechanism of action of natural products.
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Zhang Q, Piao C, Ma H, Xu J, Wang Y, Liu T, Liu G, Wang H. Exosomes from adipose-derived mesenchymal stem cells alleviate liver ischaemia reperfusion injury subsequent to hepatectomy in rats by regulating mitochondrial dynamics and biogenesis. J Cell Mol Med 2021; 25:10152-10163. [PMID: 34609057 PMCID: PMC8572784 DOI: 10.1111/jcmm.16952] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 09/03/2021] [Accepted: 09/08/2021] [Indexed: 12/23/2022] Open
Abstract
Hepatic ischaemia reperfusion injury (HIRI) is a major factor leading to liver dysfunction after liver resection and liver transplantation. Adipose-derived mesenchymal stem cells (ADSCs) have potential therapeutic effects on HIRI. Exosomes derived from ADSCs (ADSCs-exo) have been widely studied as an alternative of ADSCs therapy. Thus, the aim of this study was to evaluate the potential protective effect and related mechanism of ADSCs-exo on HIRI subsequent to hepatectomy. Rats were randomly divided into four groups: Sham, I30R+PH, ADSCs and ADSCs-exo group. After 24 h of reperfusion, liver and serum of the rats were immediately collected. ADSCs-exo improved liver function, inhibited oxidative stress and reduced apoptosis of hepatocytes in HIRI subsequent to hepatectomy in rats. ADSCs-exo significantly promoted the recovery of mitochondrial function, markedly increased the content of ATP in the liver tissue, and improved the ultrastructure of mitochondria in hepatocytes. Moreover, ADSCs-exo significantly increased the expression of OPA-1, MFN-1 and MFN-2 proteins related to mitochondrial fusion, while DRP-1 and Fis-1 mRNA and protein expression associated with mitochondrial fission were significantly decreased after the treatment with ADSCs-exo. In addition, ADSCs-exo significantly increased the expression of PGC-1α, NRF-1 and TFAM genes and proteins related to mitochondrial biogenesis. ADSCs-exo improves liver function induced by HIRI subsequent to hepatectomy in rats and maintains mitochondrial homeostasis by inhibiting mitochondrial fission, promoting mitochondrial fusion and promoting mitochondrial biogenesis. Therefore, ADSCs-exo may be considered as a potential promising alternative to ADSCs in the treatment of HIRI subsequent to hepatectomy.
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Affiliation(s)
- Qianzhen Zhang
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
- College of Animal Science and TechnologyJilin Agricultural UniversityChangchunChina
| | - Chenxi Piao
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
| | - Haiyang Ma
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
| | - Jiayuan Xu
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
| | - Yue Wang
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
| | - Tao Liu
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
| | - Guodong Liu
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
| | - Hongbin Wang
- College of Veterinary MedicineNortheast Agricultural UniversityHarbinChina
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Wang Y, Guo J, Li B, Li D, Meng Z, Sun SK. Biocompatible therapeutic albumin/genipin bioglue for postoperative wound adhesion and residual tumor ablation. Biomaterials 2021; 279:121179. [PMID: 34700226 DOI: 10.1016/j.biomaterials.2021.121179] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 10/01/2021] [Accepted: 10/06/2021] [Indexed: 01/23/2023]
Abstract
Surgical adhesives have partly replaced traditional sutures to seal and reattach tissues due to their superiorities in preventing liquids leakage and avoiding secondary damage in the surrounding wound area. Most of the existing adhesives are committed to promoting wound healing and functional recovery. A therapeutic adhesive that assists in clearing the residual tumors in the surgical area is undoubtedly meaningful to obtain a better clinical outcome. Herein, enlightened by commercial BioGlue (albumin/glutaraldehyde sealant), a biocompatible therapeutic albumin/genipin bioglue is designed for postoperative wound adhesion and tumor ablation. The albumin/genipin bioglue is formed by simple mixing of bovine serum albumin (BSA) and genipin (GP) under a 35 °C water bath for 24 h without further purification. The obtained dark-blue fluorescent adhesive exhibits a significant temperature increase accompanied by heating-induced curing once irradiated with an 808-nm laser. This unique characteristic allows BSA-GP a therapeutic adhesive for postoperative wound adhesion and photothermal elimination of residual tumors under laser irradiation. Moreover, its easy injectability and impressive photothermal efficacy also make it feasible for in situ tumor photothermal ablation. The ultrasimple synthetic strategy by mimicking BioGlue endows BSA-GP adhesive with large-scale production capacity and clinical transformation potential, which is a successful paradigm for reforming existing clinical products.
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Affiliation(s)
- Yaqiong Wang
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Jingjing Guo
- Department of Radiology, Tianjin Huanhu Hospital, Tianjin, 300350, China
| | - Bingjie Li
- Department of Radiology, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Dong Li
- Department of Radiology, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Zhaowei Meng
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Shao-Kai Sun
- School of Medical Imaging, Tianjin Medical University, Tianjin, 300203, China.
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24
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Shi X, Li Y, Wang Y, Ding T, Zhang X, Wu N. Pharmacological postconditioning with sappanone A ameliorates myocardial ischemia reperfusion injury and mitochondrial dysfunction via AMPK-mediated mitochondrial quality control. Toxicol Appl Pharmacol 2021; 427:115668. [PMID: 34358556 DOI: 10.1016/j.taap.2021.115668] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 01/26/2023]
Abstract
Pharmacological postconditioning (PPC), drug intervention before or during the early minutes of reperfusion, could stimulate cardioprotection as ischemic postconditioning. In this study, we examined whether PPC with sappanone A (SA), a homoisoflavanone with potent antioxidant and anti-inflammatory activity, has a protective effect on myocardial ischemia reperfusion injury (MIRI), and explored the underlying mechanism. A MIRI model was established using the Langendorff method. After 30 min of ischemia, isolated rat hearts were treated with SA at the onset of reperfusion to stimulate PPC. The changes in myocardial infarct size, mitochondrial function, mitochondrial biogenesis, mitophagy, and mitochondrial fission and fusion were detected. The results showed that SA postconditioning decreased the myocardial infarct size, inhibited the release of lactate dehydrogenase (LDH), creatine kinase-MB (CK-MB), and cardiac troponin (cTnI), as well as improved cardiac function, enhanced myocardial ATP content and mitochondrial complex activity, and prevented the loss of mitochondrial membrane potential and opening of mitochondrial permeability transition pore (mPTP). Mechanistically, we found that SA was an AMP-activated protein kinase (AMPK) activator, and SA postconditioning could facilitate mitochondrial biogenesis by increasing mitochondrial DNA (mtDNA) copy number and the expression of peroxisome proliferator-activated receptor-γ coactivator 1α (PGC1α). In addition, it balanced mitochondrial dynamics by decreasing fission and increasing fusion, and enhanced mitophagy in an AMPK-dependent manner. Moreover, AMPK silencing abolished the cardioprotection of SA postconditioning. Collectively, our study demonstrated that SA postconditioning ameliorated MIRI and mitochondrial dysfunction by regulation of mitochondrial quality control via activating AMPK. This finding provides a new insight into pharmacological action and clinical use of SA.
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Affiliation(s)
- Xiaojing Shi
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, PR China
| | - Yang Li
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, PR China
| | - Yaguang Wang
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, PR China
| | - Tiejia Ding
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, PR China
| | - Xiaowen Zhang
- Medical Research Center, Shengjing Hospital of China Medical University, Shenyang, PR China.
| | - Nan Wu
- The Central Laboratory of the First Affiliated Hospital of China Medical University, Shenyang, PR China.
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25
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The Role of Mitochondria in Liver Ischemia-Reperfusion Injury: From Aspects of Mitochondrial Oxidative Stress, Mitochondrial Fission, Mitochondrial Membrane Permeable Transport Pore Formation, Mitophagy, and Mitochondria-Related Protective Measures. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6670579. [PMID: 34285766 PMCID: PMC8275408 DOI: 10.1155/2021/6670579] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 06/04/2021] [Accepted: 06/11/2021] [Indexed: 02/08/2023]
Abstract
Ischemia-reperfusion injury (IRI) has indeed been shown as a main complication of hepatectomy, liver transplantation, trauma, and hypovolemic shock. A large number of studies have confirmed that microvascular and parenchymal damage is mainly caused by reactive oxygen species (ROS), which is considered to be a major risk factor for IRI. Under normal conditions, ROS as a kind of by-product of cellular metabolism can be controlled at normal levels. However, when IRI occurs, mitochondrial oxidative phosphorylation is inhibited. In addition, oxidative respiratory chain damage leads to massive consumption of adenosine triphosphate (ATP) and large amounts of ROS. Additionally, mitochondrial dysfunction is involved in various organs and tissues in IRI. On the one hand, excessive free radicals induce mitochondrial damage, for instance, mitochondrial structure, number, function, and energy metabolism. On the other hand, the disorder of mitochondrial fusion and fission results in further reduction of the number of mitochondria so that it is not enough to clear excessive ROS, and mitochondrial structure changes to form mitochondrial membrane permeable transport pores (mPTPs), which leads to cell necrosis and apoptosis, organ failure, and metabolic dysfunction, increasing morbidity and mortality. According to the formation mechanism of IRI, various substances have been discovered or synthesized for specific targets and cell signaling pathways to inhibit or slow the damage of liver IRI to the body. Here, based on the development of this field, this review describes the role of mitochondria in liver IRI, from aspects of mitochondrial oxidative stress, mitochondrial fusion and fission, mPTP formation, and corresponding protective measures. Therefore, it may provide references for future clinical treatment and research.
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Xu F, Li Y, Cao Z, Zhang J, Huang W. AFB 1-induced mice liver injury involves mitochondrial dysfunction mediated by mitochondrial biogenesis inhibition. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 216:112213. [PMID: 33838459 DOI: 10.1016/j.ecoenv.2021.112213] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 03/24/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
Aflatoxin B1 (AFB1) pollutes foodstuffs and feeds, causing a food safety problem and seriously endangering human and animal health. Liver is the principal organ for AFB1 accumulation and biotransformation, during which AFB1 can cause acute and chronic liver damage, however, the specific mechanism is not completely clear. Mitochondria are the primary organelle of cellular bio-oxidation, providing 95% energy for liver to execute its multiple functions. Therefore, we speculated that mitochondrial dysfunction is involved in AFB1-induced liver injury. To verify the hypothesis, a total of eighty healthy male mice were randomly divided into four groups on average, and exposed with 0, 0.375, 0.75 and 1.5 mg/kg body weight AFB1 by intragastric administration for 30 d. The results displayed that AFB1 triggered liver injury accompanied by oxidative stress. AFB1 exposure also damaged mitochondria structure, decreased mitochondrial membrane potential (MMP), as well as increased cytoplasmic cytochrome c (Cyt-c) protein expression, Bax, p53, Caspase-3/9 protein and/or mRNA expression levels and terminal deoxynucleotidyl transferase-mediated 2'-deoxyuridine-5'-triphosphate (dUTP) nick end labeling (TUNEL) staining positive cells in mice liver. Meanwhile, AFB1 exposure elevated pyruvate content, inhibited tricarboxylic acid (TCA) cycle rate-limiting enzymes and electron transport chain (ETC) complexes I-V activities, disturbed ETC complexes I-V subunits mRNA expression levels and reduced adenosine triphosphate (ATP) level in mice liver. These results indicated that AFB1 destroyed mitochondrial structure, activated mitochondrion-dependent apoptosis and induced mitochondrial dysfunction. In addition, AFB1 disrupted mitochondrial biogenesis, presented as the abnormalities of protein and/or gene expression levels of voltage dependent anion channel protein 1 (VDAC1), peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), nuclear respiratory factor 1 (Nrf1) and mitochondrial transcription factor A (Tfam). This may contribute to hepatic and mitochondrial lesions induced by AFB1. These results provide a new perspective for elucidating the mechanisms of AFB1 hepatotoxicity.
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Affiliation(s)
- Feibo Xu
- Department of Histology and Embryology, College of Basic Medicine, Binzhou Medical University, 346 Guanhai Road, Yantai 246003, Shandong, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
| | - Yanfei Li
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Zheng Cao
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jian Zhang
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Wanyue Huang
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
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27
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Oliveira RP, Machado IF, Palmeira CM, Rolo AP. The potential role of sestrin 2 in liver regeneration. Free Radic Biol Med 2021; 163:255-267. [PMID: 33359262 DOI: 10.1016/j.freeradbiomed.2020.12.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/25/2020] [Accepted: 12/17/2020] [Indexed: 12/27/2022]
Abstract
Liver regeneration is a remarkably complex phenomenon conserved across all vertebrates, enabling the restoration of lost liver mass in a matter of days. Unfortunately, extensive damage to the liver may compromise this process, often leading to the death of affected individuals. Ischemia/reperfusion injury (IRI) is a common source of damage preceding regeneration, often present during liver transplantation, resection, trauma, or hemorrhagic shock. Increased oxidative stress and mitochondrial dysfunction are key hallmarks of IRI, which can jeopardize the liver's ability to regenerate. Therefore, a better understanding of both liver regeneration and IRI is of important clinical significance. In the current review, we discuss the potential role of sestrin 2 (SESN2), a novel anti-aging protein, in liver regeneration and ischemia/reperfusion preceding regeneration. We highlight its beneficial role in protecting cells from mitochondrial dysfunction and oxidative stress as key aspects of its involvement in liver regeneration. Additionally, we describe how its ability to promote the expression of Nrf2 bears significant importance in this context. Finally, we focus on a potential novel link between SESN2, mitohormesis and ischemic preconditioning, which could explain some of the protective effects of preconditioning.
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Affiliation(s)
- Raúl P Oliveira
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Ivo F Machado
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal; CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Carlos M Palmeira
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal; CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Anabela P Rolo
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal; CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.
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28
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Zhang J, Wang YN, Jia T, Huang H, Zhang D, Xu X. Genipin and insulin combined treatment improves implant osseointegration in type 2 diabetic rats. J Orthop Surg Res 2021; 16:59. [PMID: 33446235 PMCID: PMC7809857 DOI: 10.1186/s13018-021-02210-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) has a harmful effect on the stability and osseointegration of dental implants. T2DM induces mitochondrial damage by inhibiting AMPK signaling, resulting in oxidative stress and poor osteogenesis in the peri-implant bone area. Genipin is a major component of gardenia fruits with strong antioxidant, anti-inflammation, and antidiabetic actions, and it also can activate mitochondrial quality control via the AMPK pathway. The purpose of this study was to investigate the effects of genipin and insulin treatment on implant osseointegration in T2DM rats and explore the underlying mechanisms. METHODS Streptozotocin-induced diabetic rats received implant surgery in their femurs and were then assigned to five groups that were subjected to different treatments for three months: control group, T2DM group, insulin-treated T2DM group (10 IU/kg), genipin-treated T2DM group (50 mg/kg), and the genipin and insulin combination-treated T2DM group. Then, we regularly assessed the weight and glucose levels of the animals. Rats were euthanized at 3 months after the implantation procedure, and the femora were harvested for microscopic computerized tomography analysis, biomechanical tests, and different histomorphometric assessment. RESULTS The results indicated that the highest blood glucose and oxidative stress levels were measured for the T2DM group, resulting in the poorest osseointegration. The combination-treated T2DM group mitigated hyperglycemia and normalized, reactivated AMPK signaling, and alleviated oxidative stress as well as reversed the negative effect of osseointegration. There were beneficial changes observed in the T2DM-genipin and T2DM-insulin groups, but these were less in comparison to the combination treatment group. CONCLUSION Our study suggests that treatment with genipin in combination with insulin could be an effective method for promoting implant osseointegration in T2DM rats, which may be related to AMPK signaling.
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Affiliation(s)
- Jiajia Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1, Wenhua Road West, Jinan, 250012, Shandong Province, China
| | - Ya-Nan Wang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1, Wenhua Road West, Jinan, 250012, Shandong Province, China
| | - Tingting Jia
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1, Wenhua Road West, Jinan, 250012, Shandong Province, China
| | - Haiyun Huang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1, Wenhua Road West, Jinan, 250012, Shandong Province, China
| | - Dongjiao Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1, Wenhua Road West, Jinan, 250012, Shandong Province, China.
| | - Xin Xu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1, Wenhua Road West, Jinan, 250012, Shandong Province, China.
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29
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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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Fan X, Lin L, Cui B, Zhao T, Mao L, Song Y, Wang X, Feng H, Qingxiang Y, Zhang J, Jiang K, Cao X, Wang B, Sun C. Therapeutic potential of genipin in various acute liver injury, fulminant hepatitis, NAFLD and other non-cancer liver diseases: More friend than foe. Pharmacol Res 2020; 159:104945. [PMID: 32454225 DOI: 10.1016/j.phrs.2020.104945] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/04/2020] [Accepted: 05/19/2020] [Indexed: 12/14/2022]
Abstract
Genipin is an aglycone derived from the geniposide, the most abundant iridoid glucoside constituent of Gardenia jasminoides Ellis. For decades, genipin is the focus of studies as a versatile compound in the treatment of various pathogenic conditions. In particularly, Gardenia jasminoides Ellis has long been used in traditional Chinese medicine for the prevention and treatment of liver disease. Mounting experimental data has proved genipin possesses therapeutic potential for cholestatic, septic, ischemia/reperfusion-triggered acute liver injury, fulminant hepatitis and NAFLD. This critical review is a reflection on the valuable lessons from decades of research regarding pharmacological activities of genipin. Of note, genipin represents choleretic effect by potentiating bilirubin disposal and enhancement of genes in charge of the efflux of a number of organic anions. The anti-inflammatory capability of genipin is mediated by suppression of the production and function of pro-inflammatory cytokines and inflammasome. Moreover, genipin modulates various transcription factor and signal transduction pathway. Genipin appears to trigger the upregulation of several key genes encoding antioxidant and xenobiotic-metabolizing enzymes. Furthermore, the medicinal impact of genipin extends to modulation of regulated cell death, including autophagic cell death, apoptosis, necroptosis and pyroptosis, and modulation of quality of cellular organelle. Another crucial effect of genipin appears to be linked to dual role in targeting uncoupling protein 2 (UCP2). As a typical UCP2-inhibiting compound, genipin could inhibit AMP-activated protein kinase or NF-κB in circumstance. On the contrary, reactive oxygen species production and cellular lipid deposits mediated by genipin through the upregulation of UCP2 is observed in liver steatosis, suggesting the precise role of genipin is disease-specific. Collectively, we comprehensively summarize the mechanisms and pathways associated with the hepatoprotective activity of genipin and discuss potential toxic impact. Notably, our focus is the direct medicinal effect of genipin itself, whereas its utility as a crosslinking agent in tissue engineering is out of scope for the current review. Further studies are therefore required to disentangle these complicated pharmacological properties to confer this natural agent a far greater potency.
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Affiliation(s)
- Xiaofei Fan
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Lin Lin
- Department of Gastroenterology, Tianjin Medical University General Hospital Airport Hospital, East Street 6, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Binxin Cui
- Department of Gastroenterology, Tianjin Medical University General Hospital Airport Hospital, East Street 6, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Tianming Zhao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Lihong Mao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Yan Song
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Xiaoyu Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Hongjuan Feng
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Department of Nutriology, Tianjin Third Central Hospital, Jintang Road 83, Hedong District, Tianjin 300170, China
| | - Yu Qingxiang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Jie Zhang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Kui Jiang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Xiaocang Cao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China.
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China.
| | - Chao Sun
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping DisTrict, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Key Laboratory of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Department of Gastroenterology, Tianjin Medical University General Hospital Airport Hospital, East Street 6, Tianjin Airport Economic Area, Tianjin 300308, China.
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Qasim W, Li Y, Sun RM, Feng DC, Wang ZY, Liu DS, Yao JH, Tian XF. PTEN-induced kinase 1-induced dynamin-related protein 1 Ser637 phosphorylation reduces mitochondrial fission and protects against intestinal ischemia reperfusion injury. World J Gastroenterol 2020; 26:1758-1774. [PMID: 32351292 PMCID: PMC7183859 DOI: 10.3748/wjg.v26.i15.1758] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 03/17/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Intestinal ischemia reperfusion (I/R) occurs in various diseases, such as trauma and intestinal transplantation. Excessive reactive oxygen species (ROS) accumulation and subsequent apoptotic cell death in intestinal epithelia are important causes of I/R injury. PTEN-induced putative kinase 1 (PINK1) and phosphorylation of dynamin-related protein 1 (DRP1) are critical regulators of ROS and apoptosis. However, the correlation of PINK1 and DRP1 and their function in intestinal I/R injury have not been investigated. Thus, examining the PINK1/DRP1 pathway may help to identify a protective strategy and improve the patient prognosis.
AIM To clarify the mechanism of the PINK1/DRP1 pathway in intestinal I/R injury.
METHODS Male C57BL/6 mice were used to generate an intestinal I/R model via superior mesenteric artery occlusion followed by reperfusion. Chiu’s score was used to evaluate intestinal mucosa damage. The mitochondrial fission inhibitor mdivi-1 was administered by intraperitoneal injection. Caco-2 cells were incubated in vitro in hypoxia/reoxygenation conditions. Small interfering RNAs and overexpression plasmids were transfected to regulate PINK1 expression. The protein expression levels of PINK1, DRP1, p-DRP1 and cleaved caspase 3 were measured by Western blotting. Cell viability was evaluated using a Cell Counting Kit-8 assay and cell apoptosis was analyzed by TUNEL staining. Mitochondrial fission and ROS were tested by MitoTracker and MitoSOX respectively.
RESULTS Intestinal I/R and Caco-2 cell hypoxia/reoxygenation decreased the expression of PINK1 and p-DRP1 Ser637. Pretreatment with mdivi-1 inhibited mitochondrial fission, ROS generation, and apoptosis and ameliorated cell injury in intestinal I/R. Upon PINK1 knockdown or overexpression in vitro, we found that p-DRP1 Ser637 expression and DRP1 recruitment to the mitochondria were associated with PINK1. Furthermore, we verified the physical combination of PINK1 and p-DRP1 Ser637.
CONCLUSION PINK1 is correlated with mitochondrial fission and apoptosis by regulating DRP1 phosphorylation in intestinal I/R. These results suggest that the PINK1/DRP1 pathway is involved in intestinal I/R injury, and provide a new approach for prevention and treatment.
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Affiliation(s)
- Wasim Qasim
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, Liaoning Province, China
| | - Yang Li
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, Liaoning Province, China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
| | - Rui-Min Sun
- Department of Pharmacology, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Dong-Cheng Feng
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, Liaoning Province, China
| | - Zhan-Yu Wang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, Liaoning Province, China
| | - De-Shun Liu
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, Liaoning Province, China
| | - Ji-Hong Yao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Xiao-Feng Tian
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, Liaoning Province, China
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32
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Zheng J, Chen L, Lu T, Zhang Y, Sui X, Li Y, Huang X, He L, Cai J, Zhou C, Liang J, Chen G, Yao J, Yang Y. MSCs ameliorate hepatocellular apoptosis mediated by PINK1-dependent mitophagy in liver ischemia/reperfusion injury through AMPKα activation. Cell Death Dis 2020; 11:256. [PMID: 32312955 PMCID: PMC7171190 DOI: 10.1038/s41419-020-2424-1] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 12/14/2019] [Accepted: 12/17/2019] [Indexed: 12/18/2022]
Abstract
Hepatocyte apoptosis is the main pathophysiological process underlying liver ischemia/reperfusion (I/R) injury. Mitochondrial abnormalities have a vital role in hepatocellular damage. The hepatoprotective effects of mesenchymal stem cells (MSCs) have been previously demonstrated. In this study, we aim to investigate the effect and potential mechanism of MSCs against liver I/R injury. Effects of MSCs were studied in mice liver I/R injury model and in a hypoxia/reoxygenation (H/R) model of L02 hepatocytes. The potential mechanisms of MSCs on these in vivo and in vitro I/R-induced hepatocellular apoptosis models were studies. Accompanied by the improvement of hepatic damage, MSCs exhibited capabilities of controlling mitochondrial quality, shown by reduced mitochondrial reactive oxygen species (mtROS) overproduction, decreased the accumulation of mitochondrial fragmentation, restored ATP generation and upregulated mitophagy. Furthermore, we descripted a potential mechanism of MSCs on upregulating mitophagy and found that the reduced Parkin and PINK1 expression and inactivated AMPKα pathway were observed in the liver tissue in I/R model. These effects were reversed by MSCs treatment. In vitro study showed that MSC-conditioned medium (MSC-CM) suppressed hepatocellular apoptosis and inhibited mtROS accumulation in the H/R environment. And these effects of MSC-CM were partially blocked after the cells were transfected with PINK1 siRNA or added with dorsomorphin. Collectively, our findings provide a novel pharmacological mechanism that MSCs exert hepatoprotective effect in liver I/R injury via upregulating PINK1-dependent mitophagy. In addition, this effect might be attributed to the modulation of AMPKα activation.
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Affiliation(s)
- Jun Zheng
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Liang Chen
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Tongyu Lu
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Yingcai Zhang
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Xin Sui
- Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Yang Li
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Xuna Huang
- Central Experimental Room of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Liying He
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, 510630, Guangzhou, China
| | - Jianye Cai
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Chaorong Zhou
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Jinliang Liang
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China
| | - Guihua Chen
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.
| | - Jia Yao
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.
| | - Yang Yang
- Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, 510630, Guangzhou, China.
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Ma X, McKeen T, Zhang J, Ding WX. Role and Mechanisms of Mitophagy in Liver Diseases. Cells 2020; 9:cells9040837. [PMID: 32244304 PMCID: PMC7226762 DOI: 10.3390/cells9040837] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/23/2020] [Accepted: 03/28/2020] [Indexed: 12/12/2022] Open
Abstract
The mitochondrion is an organelle that plays a vital role in the regulation of hepatic cellular redox, lipid metabolism, and cell death. Mitochondrial dysfunction is associated with both acute and chronic liver diseases with emerging evidence indicating that mitophagy, a selective form of autophagy for damaged/excessive mitochondria, plays a key role in the liver’s physiology and pathophysiology. This review will focus on mitochondrial dynamics, mitophagy regulation, and their roles in various liver diseases (alcoholic liver disease, non-alcoholic fatty liver disease, drug-induced liver injury, hepatic ischemia-reperfusion injury, viral hepatitis, and cancer) with the hope that a better understanding of the molecular events and signaling pathways in mitophagy regulation will help identify promising targets for the future treatment of liver diseases.
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Affiliation(s)
- Xiaowen Ma
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA; (X.M.); (T.M.)
| | - Tara McKeen
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA; (X.M.); (T.M.)
| | - Jianhua Zhang
- Department of Pathology, Division of Molecular Cellular Pathology, University of Alabama at Birmingham, 901 19th street South, Birmingham, AL 35294, USA;
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA; (X.M.); (T.M.)
- Correspondence: ; Tel.: +1-913-588-9813
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The Effects of Natural Iridoids and Anthocyanins on Selected Parameters of Liver and Cardiovascular System Functions. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:2735790. [PMID: 32318236 PMCID: PMC7150688 DOI: 10.1155/2020/2735790] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/10/2020] [Accepted: 03/06/2020] [Indexed: 12/29/2022]
Abstract
The old adage says, "you are what you eat." And although it is a banality repeated by many with a grain of salt, it also has quite a bit of truth in it, as the products we eat have a considerable impact on our health. Unfortunately, humanity is eating worse from one year to another, both in terms of product quality and eating habits. At the same time, it is brought up frequently that plant products should form the basis of our diet. This issue was also reflected in the new version of the food pyramid. Iridoids and anthocyanins are groups of plant compounds with proven beneficial effects on health. Both groups affect the cardiovascular system and the liver functions. Although many mechanisms of action and the therapeutic effects of these compounds have already been learned, intensive animal and clinical research is still underway to explore their new curative mechanisms and effects or to broaden our knowledge of those previously described. In this article, we review the effects of natural iridoids and anthocyanins on selected parameters of liver and cardiovascular system functions.
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35
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Li Y, Ruan DY, Jia CC, Zheng J, Wang GY, Zhao H, Yang Q, Liu W, Yi SH, Li H, Wang GS, Yang Y, Chen GH, Zhang Q. Aging aggravates hepatic ischemia-reperfusion injury in mice by impairing mitophagy with the involvement of the EIF2α-parkin pathway. Aging (Albany NY) 2019; 10:1902-1920. [PMID: 30089704 PMCID: PMC6128434 DOI: 10.18632/aging.101511] [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: 07/05/2018] [Accepted: 07/28/2018] [Indexed: 02/07/2023]
Abstract
Hepatic ischemia-reperfusion (I/R) injury fundamentally influences the performance of aged liver grafts. The significance of mitophagy in the age dependence of sensitivity to I/R injury remains poorly understood. Here, we show that aging aggravated hepatic I/R injury with decreased mitophagy in mice. The enhancement of mitophagy resulted in significant protection against hepatic I/R injury. Parkin, an E3 ubiquitin ligase, was found depleted by I/R in aged livers. In oxygen-glucose deprivation reperfusion (OGD-Rep.)-treated L02 cells, parkin silencing impaired mitophagy and aggravated cell damage through a relative large mitochondrial membrane potential transition. The phosphorylation of the endoplasmic reticulum stress response protein EIF2α, which was also reduced in the aged liver, induced parkin expression both in vivo and vitro. Forty-six hepatic biopsy specimens from liver graft were collected 2 hours after complete revascularization, followed by immunohistochemical analyses. Parkin expression was negatively correlated to donor age and the peak level of aspartate aminotransferase within first week after liver transplantation. Our translational study demonstrates that aging aggravated hepatic I/R injury by impairing the age-dependent mitophagy function via an insufficient parkin expression and identifies a new strategy to evaluate the capacity of an aged liver graft in the process of I/R through the parkin expression.
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Affiliation(s)
- Yang Li
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.,Guangdong Key laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China
| | - Dan-Yun Ruan
- Department of Medical Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China
| | - Chang-Chang Jia
- Department of Biotherapy, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China.,Guangdong Key laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China
| | - Jun Zheng
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.,Guangdong Key laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China
| | - Guo-Ying Wang
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Hui Zhao
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Qing Yang
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Wei Liu
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.,Guangdong Key laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China
| | - Shu-Hong Yi
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Hua Li
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Gen-Shu Wang
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Yang Yang
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Gui-Hua Chen
- Department of Liver Surgery and Liver Transplantation, Guangzhou Clinical Research and Translation Center for Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Qi Zhang
- Department of Biotherapy, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China.,Guangdong Key laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong 510630, China
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Flores EEE, Cardoso FD, Siqueira LB, Ricardi NC, Costa TH, Rodrigues RC, Klein MP, Hertz PF. Influence of reaction parameters in the polymerization between genipin and chitosan for enzyme immobilization. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Liu H, Chen M, Yin H, Hu P, Wang Y, Liu F, Tian X, Huang C. Exploration of the hepatoprotective chemical base of an orally administered herbal formulation (YCHT) in normal and CCl 4-intoxicated liver injury rats. Part 1: Metabolic profiles from the liver-centric perspective. JOURNAL OF ETHNOPHARMACOLOGY 2019; 237:81-91. [PMID: 30904705 DOI: 10.1016/j.jep.2019.03.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 02/27/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yin-Chen-Hao Tang (YCHT), derived from "Treatise on Febrile Diseases" in ancient China, has been a very popular hepatoprotective three-herb formula in China and Japan, although its chemical base remains unclear. AIM OF THIS STUDY As the first step in revealing the hepatoprotective chemical base of YCHT, we aimed to clarify the absorbed ingredients and associated metabolic pathways for orally dosed YCHT in both normal and liver injury rats from a liver-centric perspective. MATERIALS AND METHODS With the aid of 10 reference compounds, the absorbed ingredients and generated metabolites were systematically characterized by high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF) in the portal vein plasma (the plasma before hepatic disposition) - liver - systemic plasma (the plasma after hepatic disposition), following oral administration of YCHT in normal and CCl4-induced liver injury rats. RESULTS A total of 38 compounds with six chemical structures, consisting of 10 prototypes and 28 metabolites generated through 9 biotransformations, were absolutely or tentatively identified, and 25 compounds were first reported on YCHT treatments. Among them, 8 compounds were absolutely confirmed by comparing with standard substances, and some had published hepatoprotective activities. Compared with the 35, 15, and 29 compounds identified in the portal vein plasma, liver, and systemic plasma of normal rats, respectively, the corresponding numbers of characterized compounds were 37, 13 and 29 in the liver injury rats. CONCLUSIONS Sulfation and glucuronidation were the predominant biotransformations, and intestinal metabolism, prior to hepatic metabolism, occurred for most compounds. CCl4-induced liver injury caused only slight changes in the metabolic profiles of rats orally administered YCHT. These results provided the precondition for further quantitative analysis and pharmacodynamic screening of compounds in YCHT.
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Affiliation(s)
- Huan Liu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingcang Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao Yin
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Pei Hu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yangyang Wang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fang Liu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoting Tian
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Chenggang Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Tian X, Liu H, Qiao S, Yin H, Chen M, Hu P, Wang Y, Peng H, Liu F, Pan G, Huang C. Exploration of the hepatoprotective chemical base of an orally administered herbal formulation (YCHT) in normal and CCl 4-intoxicated liver injury rats. Part 2: Hepatic disposition in vivo and hepatoprotective activity in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2019; 236:161-172. [PMID: 30802610 DOI: 10.1016/j.jep.2019.02.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 01/27/2019] [Accepted: 02/11/2019] [Indexed: 05/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yin-Chen-Hao Tang (YCHT) has been a very popular, hepatoprotective three-herb formula with an unclear chemical base. AIM OF THIS STUDY To reveal the hepatoprotective chemical base of oral-dosed YCHT, we bridged the hepatic disposition of six compounds in vivo and their hepatoprotection in vitro. MATERIALS AND METHODS In vivo, following the oral administration of YCHT in normal and CCl4-induced liver injury rats, the determinations of chlorogenic acid, 4-hydroxyacetophenone, geniposide, genipin, rhein and emodin were conducted in the portal vein plasma, the liver, and the systemic plasma. In vitro, the hepatoprotective activities of these compounds were determined in the CCl4-induced HepG2 cells. RESULTS Consistent with the highest content in YCHT, geniposide had the highest exposure in vivo. Inconsistent with the negligible content, rhein, 4-hydroxyacetophenone, emodin and genipin showed substantial hepatic accumulations. In contrast, chlorogenic acid, an ingredient that has a high content in YCHT, elicited no hepatic exposure. In normal rats, the hepatic disposition prevented the compounds entering into the systemic plasma from the portal vein plasma by 44.9-100%, except for rhein. CCl4-induced liver injury caused a decreased hepatic exposure of 4-hydroxyacetophenone, rhein and emodin by 50%. In vitro, all six compounds exerted the hepatoprotection by increasing cell viability, decreasing hepatic marker enzymes and inhibiting lipid peroxidation at varying levels. CONCLUSION Geniposide, rhein, emodin, 4-hydroxyacetophenone and genipin directly resisted liver injury in oral-dosed YCHT, while chlorogenic acid likely played an indirect role. This study proved that YCHT exerted hepatoprotection through multiple components and multiple actions. However, close attention should be paid to the possible side effects and oral dosage of YCHT in clinics.
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Affiliation(s)
- Xiaoting Tian
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huan Liu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shida Qiao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Yin
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingcang Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pei Hu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yangyang Wang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huige Peng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fang Liu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoyu Pan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Chenggang Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Hai Ke Road Zhangjiang, Pudong, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Yang M, Linn BS, Zhang Y, Ren J. Mitophagy and mitochondrial integrity in cardiac ischemia-reperfusion injury. Biochim Biophys Acta Mol Basis Dis 2019; 1865:2293-2302. [PMID: 31100337 DOI: 10.1016/j.bbadis.2019.05.007] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 05/02/2019] [Accepted: 05/12/2019] [Indexed: 02/07/2023]
Abstract
Ischemia-reperfusion injury (IR injury), produced by initial interruption and subsequent restoration of organ blood flow, is an important clinical dilemma accompanied by various cardiac reperfusion strategies following acute myocardial infarction (AMI). Although the restored blood flow is necessary for oxygen and nutrient supply, reperfusion often results in pathological sequelae leading to elevated ischemic damage. Among various theories postulated for IR injury including vascular leakage, oxidative stress, leukocyte entrapment, inflammation and apoptosis, mitochondrial dysfunction plays an essential role in mediating pathophysiological processes with recent evidence depicting a pivotal role for impaired mitophagy in mitochondrial injury. Given the critical role for mitophagy in mitochondrial quality control and the recent reports supporting a tie between mitophagy and IR injury, this review will revisit the contemporary understanding of mitophagy in the regulation of cardiac homeostasis and update recent progresses with regards to mitophagy and cardiac IR injury. We hope to establish a role for mitophagy as a potential therapeutic target in the management of IR injury.
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Affiliation(s)
- Mingjie Yang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Becky S Linn
- School of Pharmacy, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA
| | - Yingmei Zhang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China; School of Pharmacy, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA.
| | - Jun Ren
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China; School of Pharmacy, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA.
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Dusabimana T, Kim SR, Kim HJ, Park SW, Kim H. Nobiletin ameliorates hepatic ischemia and reperfusion injury through the activation of SIRT-1/FOXO3a-mediated autophagy and mitochondrial biogenesis. Exp Mol Med 2019; 51:1-16. [PMID: 31028246 PMCID: PMC6486618 DOI: 10.1038/s12276-019-0245-z] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/07/2019] [Accepted: 01/08/2019] [Indexed: 01/23/2023] Open
Abstract
Hepatic ischemia and reperfusion injury are characterized by impaired autophagy, mitochondrial dysfunction, and subsequent compromise of cellular homeostasis following hepatic surgery or transplantation. Nobiletin, a natural flavonoid, is a beneficial antioxidant that possesses anti-inflammatory and anti-cancer activities. We investigated the effect of nobiletin on hepatic IR injury and described the underlying mechanisms. C57BL/6 mice were subjected to 60 min of partial hepatic ischemia, treated with nobiletin (5 mg/kg) or vehicle at the start of reperfusion, and killed at 5 h of reperfusion. Hepatic ischemia and reperfusion increased hepatocellular oxidative damage, inflammation, and cell death, but these changes were alleviated upon nobiletin treatment. Nobiletin increased the expression of proteins that control autophagy, mitochondrial dynamics, and biogenesis. Specifically, the SIRT-1/FOXO3a and PGC-1α pathways were activated by nobiletin. IR-induced AKT activation was associated with FOXO3a phosphorylation, which resulted in a significant reduction in the nuclear FOXO3a levels and potentially attenuated autophagy-regulatory gene expression. Nobiletin increased FOXO3a expression and its nuclear translocation via the inhibition of AKT. Specific inhibition of SIRT-1 abolished the protective effect of nobiletin, causing decreased FOXO3a expression, followed by autophagy induction and decreased PGC-1α expression and mitochondrial dynamics. Taken together, our data indicate that SIRT-1 directly mediates the protective effect of nobiletin against hepatic ischemia and reperfusion injury. The activation of autophagy and mitochondrial function through the SIRT-1/FOXO3a and PGC-1α pathways indicate that nobiletin could have therapeutic potential for treating hepatic ischemia and reperfusion injury. Nobiletin, an antioxidant found in citrus peel, may protect the liver from reperfusion injury, damage following blood flow interruption. When blood flow is restricted and then restored, as in transplant, surgery, or shock, cells are injured, largely due to damage to the cellular powerhouses, the mitochondria. Nobiletin is known to have many benefits, including anti-cancer and anti-inflammatory activities, but its mechanism of action is not well understood. Sang Won Park and Hwajin Kim, at the Gyeongsang National University School of Medicine, in Jinju, South Korea, and co-workers, investigated how nobiletin might protect the liver against interruption of blood flow. They found that nobiletin triggered cells to dismantle damaged mitochondria and produce new, functioning mitochondria, greatly reducing liver damage. These results illuminate how nobiletin works and may lead to better treatments for liver reperfusion injury.
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Affiliation(s)
- Theodomir Dusabimana
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, 52727, Republic of Korea.,Department of Convergence Medical Sciences, Institute of Health Sciences, Gyeongsang National University Graduate School, Jinju, 52727, Republic of Korea
| | - So Ra Kim
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, 52727, Republic of Korea
| | - Hye Jung Kim
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, 52727, Republic of Korea.,Department of Convergence Medical Sciences, Institute of Health Sciences, Gyeongsang National University Graduate School, Jinju, 52727, Republic of Korea
| | - Sang Won Park
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, 52727, Republic of Korea. .,Department of Convergence Medical Sciences, Institute of Health Sciences, Gyeongsang National University Graduate School, Jinju, 52727, Republic of Korea.
| | - Hwajin Kim
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, 52727, Republic of Korea.
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Tian Q, Liu F, Xu Z, Liu H, Yin H, Sun Z, Chen M, Li Z, Ma L, Huang C. Evaluation of the chemical consistency of Yin‐Chen‐Hao‐Tang prepared by combined and separated decoction methods using high‐performance liquid chromatography and quadrupole time‐of‐flight mass spectrometry coupled with multivariate statistical analysis. J Sep Sci 2019; 42:1664-1675. [DOI: 10.1002/jssc.201800961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 02/13/2019] [Accepted: 02/16/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Qiang Tian
- School of Life Science and EngineeringSouthwest University of Science and Technology Mianyang Sichuan P. R. China
| | - Fang Liu
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
| | - Zhou Xu
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
| | - Huan Liu
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
| | - Hao Yin
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
| | - Zhaolin Sun
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
| | - Mingcang Chen
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
| | - Zhixiong Li
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
| | - Lin Ma
- School of Life Science and EngineeringSouthwest University of Science and Technology Mianyang Sichuan P. R. China
| | - Chenggang Huang
- Shanghai Research Center for Modernization of Traditional Chinese MedicineShanghai Institute of Material Medica Pudong Shanghai P. R. China
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Zhao H, Wang R, Ye M, Zhang L. Genipin protects against H2O2-induced oxidative damage in retinal pigment epithelial cells by promoting Nrf2 signaling. Int J Mol Med 2018; 43:936-944. [PMID: 30569096 PMCID: PMC6317649 DOI: 10.3892/ijmm.2018.4027] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/04/2018] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress serves a vital function in the pathogenesis of age-related macular degeneration (AMD); genipin (GP) possesses antioxidative properties. The present study aimed to investigate the effects of GP on retinal pigment epithelial (RPE) cells induced by H2O2 and the underlying mechanism. ARPE-19 cells were subjected to H2O2 treatment to induce oxidative damage. Cell viability was determined via an MTT assay. Reactive oxygen species (ROS) levels and cell apoptosis were detected by flow cytometry. Nuclear factor-erythroid 2-related factor-2 (Nrf2) signaling-associated and the expression of apoptosis-associated factors were measured using reverse transcription-quantitative polymerase chain reaction assay and western blotting. The results revealed that 200 µM H2O2 and 30 µM GP were determined to be the optimal concentrations for subsequent experimentation. GP reversed the inhibitory effects of H2O2 by promoting cell viability, attenuating ROS accumulation and cell apoptosis, and increased the expression of Nrf2, heme oxygenase-1 (HO-1) and NAD(P)H: Quinine oxidoreductase 1 (NQO1); Nrf2 silencing inhibited HO-1 and NQO1 expression. In addition, Nrf2 silencing enhanced the effects of H2O2 by promoting ROS production and cell apoptosis. Compared with H2O2, Nrf2 silencing further decreased the expression levels of B-cell lymphoma-2 (Bcl-2), but increased that of Bcl-2-associated X protein and cleaved-caspase-3. The results of the present study revealed that Nrf2 silencing attenuated the protective effects of GP on H2O2-induced injury in ARPE-19 cells by promoting apoptosis and oxidation. Collectively, GP attenuated oxidative damage induced by H2O2 in ARPE-19 cells. Furthermore, the molecular mechanism may be associated with the Nrf2 signaling pathway. The findings of the present study nay provide insight into a potential therapeutic agent for the treatment of AMD.
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Affiliation(s)
- Hailan Zhao
- Department of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Ruiqing Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Mingxia Ye
- Department of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Lan Zhang
- Department of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
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Hou H, Wang Y, Li Q, Li Z, Teng Y, Li J, Wang X, Chen J, Huang N. The role of RIP3 in cardiomyocyte necrosis induced by mitochondrial damage of myocardial ischemia-reperfusion. Acta Biochim Biophys Sin (Shanghai) 2018; 50:1131-1140. [PMID: 30215665 DOI: 10.1093/abbs/gmy108] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Indexed: 11/13/2022] Open
Abstract
Myocardial damage caused by myocardial ischemia-reperfusion injury (MIRI) is difficult to be alleviated because cardiomyocyte necrosis is an irreversible and unregulated death form. Recently, necroptosis, a necrosis form caused by tumor necrosis factor-α (TNF-α) and Fas ligand (FasL), was found to be regulated by receptor interacting protein 3 (RIP3) and RIP3-receptor interacting protein 1 (RIP1)-mixed lineage kinase domain like protein (MLKL) pathway. But it is unclear whether they also play a regulatory role in MIRI-induced necroptosis. Our previous results showed that in rat MIRI, RIP3 could translocate and express highly in mitochondria. Therefore, it is important to explore proteins that interact with RIP3 which was translocated to mitochondria. The aim of this study was to explore the role of RIP3 in cardiomyocyte necrosis induced by mitochondrial damage of hypoxia/reoxygenation (H/R). Our results showed that H/R could cause RIP3-depended mitochondrial fragmentation and necrosis-based death; and RIP3-promoted H/R-induced necroptosis in H9c2 cells through increasing lactate dehydrogenase release and inhibiting cell viability. This process did not require RIP1 or MLKL but dynamin-related protein 1 (Drp1), which was related to Drp1 activation, reactive oxygen species elevation, and ΔΨm decline. This study provides novel insights into the role of RIP3 in cardiomyocyte injury during H/R. RIP3 may serve as a potential target for the treatment of MIRI.
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Affiliation(s)
- Huifang Hou
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
- Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
| | - Yongling Wang
- Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
| | - Qiong Li
- School of Nursing, Xinxiang Medical University, Xinxiang, China
| | - Zaibing Li
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Yan Teng
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Jingyu Li
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Xiaoying Wang
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Junli Chen
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Ning Huang
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
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Wang YN, Gao L, Wu SY, Qin S. Low-Dose 4-Hydroxy-2-Nonenal (HNE) Reperfusion Therapy Displays Cardioprotective Effects in Mice After Myocardial Infarction That Are Abrogated by Genipin. Med Sci Monit 2018; 24:3702-3709. [PMID: 29858912 PMCID: PMC6014150 DOI: 10.12659/msm.910494] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Revascularization is a successful therapeutic strategy for myocardial infarction. However, restoring coronary blood flow can lead to ischemia-reperfusion (I/R) injury. Low-dose 4-hydroxy-2-nonenal (HNE) therapy appears to play a key role in myocardial tolerance to I/R injury. We hypothesized that the positive effects of HNE on myocardial I/R injury may be UCP3-dependent. Material/Methods Adult male wild-type (WT) or UCP3 knockout (UCP3−/−) mice were pre-treated with the UCP inhibitor genipin or saline 1 h before ischemia and underwent 30-min coronary artery ligation followed by 24-h reperfusion. Mice were treated with intravenous HNE (4 mg/kg) or saline 5 min before reperfusion. Echocardiography was conducted to measure left ventricular end-diastolic posterior wall thickness (LVPWd), end-diastolic diameter (LVEDD), and fractional shortening (FS). Infarct size was measured by TTC staining. qRT-PCR and Western blotting were used to assess the expression of UCP3, UCP2, and the apoptosis markers cytochrome C and cleaved caspase-3. Results HNE improved survival at 24 h post-MI in wild-type mice (p<0.05) but not in UCP3−/− mice. HNE preserved LVEDD and FS in WT mice (p<0.05) but not in UCP3−/− mice. HNE reduced infarct size in WT mice (p<0.05) but not in UCP3−/− mice. HNE upregulated UCP3 expression (p<0.05) but did not affect UCP2 expression. HNE reduced apoptosis marker expression in WT mice (p<0.05) but not in UCP3−/− mice. HNE’s positive effects were abrogated by genipin in an UCP3-dependent manner. Conclusions Low-dose HNE reperfusion therapy attenuates murine myocardial I/R injury in an UCP3-dependent manner. These effects are abrogated by genipin in an UCP3-dependent manner.
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Affiliation(s)
- Ying-Nan Wang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Lei Gao
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Shi-Yong Wu
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Shu Qin
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
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Genipin alleviates vascular hyperpermeability following hemorrhagic shock by up-regulation of SIRT3/autophagy. Cell Death Discov 2018; 4:52. [PMID: 29760950 PMCID: PMC5943516 DOI: 10.1038/s41420-018-0057-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 02/13/2018] [Accepted: 04/02/2018] [Indexed: 02/07/2023] Open
Abstract
Genipin (GP) is commonly used to treat cardiovascular diseases; however, the protective action of GP against vascular hyperpermeability (VH) has not been reported. We previously reported that intrinsic apoptotic signaling (IAS) is involved in VH following hemorrhagic shock (HS). GP inhibits apoptosis, but the specific mechanism remains unclear. In the present study, we observed that GP protects against HS-induced VH in vitro and in vivo. We report that this protective effect is related to the inhibition of IAS by up-regulation of autophagy via sirtuin 3 (SIRT3). The endothelial cell hyperpermeability induced by HS was enhanced by GP; this was attenuated by 3-methyladenine (3MA), a specific inhibitor of autophagy, indicating the involvement of autophagy. Consistent with these results, we found that 3MA reversed the effects of GP on up-regulation of autophagy, and also diminished the protective effect of GP against IAS activation following HS. Furthermore, knockout of SIRT3 inhibited GP-induced autophagy, indicating the requirement of SIRT3 in the regulation of autophagy by GP. In rats, GP improved HS-induced VH, which was repressed by 3MA and 3-(1H-1,2,3-triazol-4-yl)pyridine (3-TYP), a SIRT3 inhibitor. In conclusion, these findings suggest that autophagy plays a protective effect in VH following HS; the protective effect of autophagy is reinforced by GP, which protects against IAS and VH by up-regulating SIRT3.
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