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Li J, Chen Y, Zha D, Wu C, Li X, Yang L, Cao H, Cai S, Cai Y. Mg-ZIF nanozyme regulates the switch between osteogenic and lipogenic differentiation in BMSCs via lipid metabolism. Lipids Health Dis 2024; 23:88. [PMID: 38528544 DOI: 10.1186/s12944-024-02083-3] [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: 12/12/2023] [Accepted: 03/20/2024] [Indexed: 03/27/2024] Open
Abstract
The accumulation of reactive oxygen species (ROS) within the bone marrow microenvironment leads to diminished osteogenic differentiation and heightened lipogenic differentiation of mesenchymal stem cells residing in the bone marrow, ultimately playing a role in the development of osteoporosis (OP). Mitigating ROS levels is a promising approach to counteracting OP. In this study, a nanozyme composed of magnesium-based zeolitic imidazolate frameworks (Mg-ZIF) was engineered to effectively scavenge ROS and alleviate OP. The results of this study indicate that Mg-ZIF exhibits significant potential in scavenging ROS and effectively promoting osteogenic differentiation of bone mesenchymal stem cells (BMSCs). Additionally, Mg-ZIF was found to inhibit the differentiation of BMSCs into adipose cells. In vivo experiments further confirmed the ability of Mg-ZIF to mitigate OP by reducing ROS levels. Mechanistically, Mg-ZIF enhances the differentiation of BMSCs into osteoblasts by upregulating lipid metabolic pathways through ROS scavenging. The results indicate that Mg-ZIF has potential as an effective therapeutic approach for the treatment of osteoporosis.
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Affiliation(s)
- Jinying Li
- Department of Endocrinology, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Yongshao Chen
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Dingsheng Zha
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Chunhui Wu
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Xiaofen Li
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Li Yang
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Hui Cao
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Shexing Cai
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China
| | - Yuebo Cai
- Department of Orthopedics Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, 528300, P. R. China.
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Su L, Xie S, Li T, Jia Y, Wang Y. Pretreatment with platelet-rich plasma protects against ischemia-reperfusion induced flap injury by deactivating the JAK/STAT pathway in mice. Mol Med 2024; 30:18. [PMID: 38302877 PMCID: PMC10835983 DOI: 10.1186/s10020-024-00781-3] [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: 08/08/2023] [Accepted: 01/08/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Ischemia-reperfusion (I/R) injury is a major cause of surgical skin flap compromise and organ dysfunction. Platelet-rich plasma (PRP) is an autologous product rich in growth factors, with tissue regenerative potential. PRP has shown promise in multiple I/R-induced tissue injuries, but its effects on skin flap injury remain unexplored. METHODS We evaluated the effects of PRP on I/R-injured skin flaps, optimal timing of PRP administration, and the involved mechanisms. RESULTS PRP protected against I/R-induced skin flap injury by improving flap survival, promoting blood perfusion and angiogenesis, suppressing oxidative stress and inflammatory response, and reducing apoptosis, at least partly via deactivating Janus kinase (JAK)-signal transducers and activators of transcription (STAT) signalling pathway. PRP given before ischemia displayed overall advantages over that given before reperfusion or during reperfusion. In addition, PRP pretreatment had a stronger ability to reverse I/R-induced JAK/STAT activation and apoptosis than AG490, a specific inhibitor of JAK/STAT signalling. CONCLUSIONS This study firstly demonstrates the protective role of PRP against I/R-injured skin flaps through negative regulation of JAK/STAT activation, with PRP pretreatment showing optimal therapeutic effects.
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Affiliation(s)
- Linlin Su
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China.
| | - Songtao Xie
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Ting Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Yanhui Jia
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Yunchuan Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China.
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Cottey L, Smith JE, Watts S. Optimisation of mitochondrial function as a novel target for resuscitation in haemorrhagic shock: a systematic review. BMJ Mil Health 2023:e002427. [PMID: 37491136 DOI: 10.1136/military-2023-002427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/10/2023] [Indexed: 07/27/2023]
Abstract
INTRODUCTION Traumatic injury is one of the leading causes of death worldwide, and despite significant improvements in patient care, survival in the most severely injured patients remains unchanged. There is a crucial need for innovative approaches to improve trauma patient outcomes; this is particularly pertinent in remote or austere environments with prolonged evacuation times to definitive care. Studies suggest that maintenance of cellular homeostasis is a critical component of optimal trauma patient management, and as the cell powerhouse, it is likely that mitochondria play a pivotal role. As a result, therapies that optimise mitochondrial function could be an important future target for the treatment of critically ill trauma patients. METHODS A systematic review of the literature was undertaken in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol to determine the potential role of mitochondria in traumatic injury and haemorrhagic shock (HS) and to identify current evidence for mitochondrial optimisation therapies in trauma. Articles were included if they assessed a mitochondrial targeted therapy in comparison to a control group, used a model of traumatic injury and HS and reported a method to assess mitochondrial function. RESULTS The search returned 918 articles with 37 relevant studies relating to mitochondrial optimisation identified. Included studies exploring a range of therapies with potential utility in traumatic injury and HS. Therapies were categorised into the key mitochondrial pathways impacted following traumatic injury and HS: ATP levels, cell death, oxidative stress and reactive oxygen species. CONCLUSION This systematic review provides an overview of the key cellular functions of the mitochondria following traumatic injury and HS and identifies why mitochondrial optimisation could be a viable and valuable target in optimising outcome in severely injured patients in the future.
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Affiliation(s)
- Laura Cottey
- Academic Department of Military Emergency Medicine, Royal Centre for Defence Medicine, Birmingham, UK
| | - J E Smith
- Academic Department of Military Emergency Medicine, Royal Centre for Defence Medicine, Birmingham, UK
- Emergency Department, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - S Watts
- Chemical, Biological and Radiological Division, Defence Science and Technology Laboratory, Salisbury, UK
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Burnstock G, Vaughn B, Robson SC. Purinergic signalling in the liver in health and disease. Purinergic Signal 2014; 10:51-70. [PMID: 24271096 PMCID: PMC3944046 DOI: 10.1007/s11302-013-9398-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 10/24/2013] [Indexed: 12/18/2022] Open
Abstract
Purinergic signalling is involved in both the physiology and pathophysiology of the liver. Hepatocytes, Kupffer cells, vascular endothelial cells and smooth muscle cells, stellate cells and cholangiocytes all express purinoceptor subtypes activated by adenosine, adenosine 5'-triphosphate, adenosine diphosphate, uridine 5'-triphosphate or UDP. Purinoceptors mediate bile secretion, glycogen and lipid metabolism and indirectly release of insulin. Mechanical stress results in release of ATP from hepatocytes and Kupffer cells and ATP is also released as a cotransmitter with noradrenaline from sympathetic nerves supplying the liver. Ecto-nucleotidases play important roles in the signalling process. Changes in purinergic signalling occur in vascular injury, inflammation, insulin resistance, hepatic fibrosis, cirrhosis, diabetes, hepatitis, liver regeneration following injury or transplantation and cancer. Purinergic therapeutic strategies for the treatment of these pathologies are being explored.
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Affiliation(s)
- Geoffrey Burnstock
- Autonomic Neuroscience Centre, University College Medical School, Rowland Hill Street, London, NW3 2PF, UK,
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Burnstock G, Ralevic V. Purinergic signaling and blood vessels in health and disease. Pharmacol Rev 2013; 66:102-92. [PMID: 24335194 DOI: 10.1124/pr.113.008029] [Citation(s) in RCA: 219] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Purinergic signaling plays important roles in control of vascular tone and remodeling. There is dual control of vascular tone by ATP released as a cotransmitter with noradrenaline from perivascular sympathetic nerves to cause vasoconstriction via P2X1 receptors, whereas ATP released from endothelial cells in response to changes in blood flow (producing shear stress) or hypoxia acts on P2X and P2Y receptors on endothelial cells to produce nitric oxide and endothelium-derived hyperpolarizing factor, which dilates vessels. ATP is also released from sensory-motor nerves during antidromic reflex activity to produce relaxation of some blood vessels. In this review, we stress the differences in neural and endothelial factors in purinergic control of different blood vessels. The long-term (trophic) actions of purine and pyrimidine nucleosides and nucleotides in promoting migration and proliferation of both vascular smooth muscle and endothelial cells via P1 and P2Y receptors during angiogenesis and vessel remodeling during restenosis after angioplasty are described. The pathophysiology of blood vessels and therapeutic potential of purinergic agents in diseases, including hypertension, atherosclerosis, ischemia, thrombosis and stroke, diabetes, and migraine, is discussed.
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Affiliation(s)
- Geoffrey Burnstock
- Autonomic Neuroscience Centre, University College Medical School, Rowland Hill Street, London NW3 2PF, UK; and Department of Pharmacology, The University of Melbourne, Australia.
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MOON KWANHOON, HOOD BRIANL, MUKHOPADHYAY PARTHA, MOHANRAJ RAJESH, ABDELMEGEED MOHAMEDA, KWON YONGIL, CONRADS THOMASP, VEENSTRA TIMOTHYD, SONG BYOUNGJOON, PACHER PAL. Oxidative inactivation of key mitochondrial proteins leads to dysfunction and injury in hepatic ischemia reperfusion. Gastroenterology 2008; 135:1344-57. [PMID: 18778711 PMCID: PMC2597302 DOI: 10.1053/j.gastro.2008.06.048] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2007] [Revised: 05/16/2008] [Accepted: 06/19/2008] [Indexed: 12/27/2022]
Abstract
BACKGROUND & AIMS Ischemia-reperfusion (I/R) is a major mechanism of liver injury following hepatic surgery or transplantation. Despite numerous reports on the role of oxidative/nitrosative stress and mitochondrial dysfunction in hepatic I/R injury, the proteins that are oxidatively modified during I/R damage are poorly characterized. This study was aimed at investigating the oxidatively modified proteins underlying the mechanism for mitochondrial dysfunction in hepatic I/R injury. We also studied the effects of a superoxide dismutase mimetic/peroxynitrite scavenger metalloporphyrin (MnTMPyP) on oxidatively modified proteins and their functions. METHODS The oxidized and/or S-nitrosylated mitochondrial proteins from I/R-injured mouse livers with or without MnTMPyP pretreatment were labeled with biotin-N-maleimide, purified with streptavidin-agarose, and resolved by 2-dimensional gel electrophoresis. The identities of the oxidatively modified proteins were determined using mass spectrometric analysis. Liver histopathology, serum transaminase levels, nitrosative stress markers, and activities of oxidatively modified mitochondrial proteins were measured. RESULTS Comparative 2-dimensional gel analysis revealed markedly increased numbers of oxidized and S-nitrosylated mitochondrial proteins following hepatic I/R injury. Many key mitochondrial enzymes involved in cellular defense, fat metabolism, energy supply, and chaperones were identified as being oxidatively modified proteins. Pretreatment with MnTMPyP attenuated the I/R-induced increased serum transaminase levels, histologic damage, increased inducible nitric oxide synthase expression, and S-nitrosylation and/or nitration of various key mitochondrial proteins. MnTMPyP pretreatment also restored I/R-induced suppressed activities of mitochondrial aldehyde dehydrogenase, 3-ketoacyl-CoA thiolases, and adenosine triphosphate synthase. CONCLUSIONS These results suggest that increased nitrosative stress is critically important in promoting S-nitrosylation and nitration of various mitochondrial proteins, leading to mitochondrial dysfunction with decreased energy supply and increased hepatic injury.
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Affiliation(s)
- KWAN-HOON MOON
- Laboratories of Membrane Biochemistry and Biophysics National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-9410
| | - BRIAN L. HOOD
- Laboratory of Proteomics and Analytical Technologies, SAIC-Frederick, Inc., Frederick, MD 21702.
| | - PARTHA MUKHOPADHYAY
- Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-9410
| | - RAJESH MOHANRAJ
- Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-9410
| | - MOHAMED A. ABDELMEGEED
- Laboratories of Membrane Biochemistry and Biophysics National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-9410
| | - YONG-IL KWON
- Laboratories of Membrane Biochemistry and Biophysics National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-9410
| | - THOMAS P. CONRADS
- Laboratory of Proteomics and Analytical Technologies, SAIC-Frederick, Inc., Frederick, MD 21702.
| | - TIMOTHY D. VEENSTRA
- Laboratory of Proteomics and Analytical Technologies, SAIC-Frederick, Inc., Frederick, MD 21702.
| | - BYOUNG-JOON SONG
- Laboratories of Membrane Biochemistry and Biophysics National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-9410
| | - PAL PACHER
- Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-9410
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Chen WT, Huang WH, Wang D, Yu FC, Chi YC, Wu JC, Wu K, Perng WC, Wu CP, Yan HC. The protective effect of adenosine triphosphate-MgCl2 on ischemia-reperfusion lung injury is leukocyte dependent. J Biomed Sci 2003. [DOI: 10.1007/bf02256324] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Asfar P, Nalos M, Pittner A, Theisen M, Ichai C, Ploner F, Georgieff M, Ince C, Brückner UB, Leverve XM, Radermacher P, Froeba G. Adenosine triphosphate-magnesium dichloride during hyperdynamic porcine endotoxemia: effects on hepatosplanchnic oxygen exchange and metabolism. Crit Care Med 2002; 30:1826-33. [PMID: 12163801 DOI: 10.1097/00003246-200208000-00026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To assess the effects of adenosine triphosphate-magnesium dichloride (ATP-MgCl2) on systemic and hepatosplanchnic hemodynamics, oxygen exchange, and energy metabolism over 24 hrs of hyperdynamic normotensive porcine endotoxemia. DESIGN Prospective, randomized, controlled experimental study with repeated measures. SETTING Investigational animal laboratory. SUBJECTS Seventeen pigs were divided into two groups: eight animals receiving endotoxin served as a control group and nine animals received endotoxin (lipopolysaccharide) and ATP-MgCl2. INTERVENTIONS Pigs were anesthetized, mechanically ventilated, and instrumented. Endotoxemia was achieved by continuous intravenous infusion of Escherichia coli lipopolysaccharide. Animals were resuscitated by hetastarch targeted to maintain mean arterial pressure of >75 mm Hg. Twelve hours after the start of the endotoxin infusion, ATP-MgCl2, or its vehicle, were administered for 12 hrs. MEASUREMENTS AND MAIN RESULTS Mean arterial pressure was maintained in the control group because of a sustained increase in cardiac output achieved by fluid resuscitation, whereas ATP-MgCl2 significantly decreased mean arterial pressure because of further systemic vasodilatation. ATP-MgCl2 markedly increased portal venous flow. In contrast to the controls, hepatic arterial flow remained unchanged until the end of the experiment, despite the further increase in cardiac output. The ileal mucosal-arterial PCO2 gap (Delta PCO2) progressively increased (p <.05) in control animals, whereas it was restored to prelipopolysaccharide levels during ATP-MgCl2 infusion. Changes in Delta PCO2 correlated with those of portal vein blood flow in these animals (r = -.68, p <.05). Moreover, ATP-MgCl2 blunted the lipopolysaccharide-induced decrease in hepatic lactate balance but did not affect portal venous pH, hepatosplanchnic oxygen exchange, splanchnic lactate/pyruvate ratios, isoprostane, NO2- + NO3-, cytokine concentrations, or tissue nucleotide content. CONCLUSION During long-term hyperdynamic porcine endotoxemia, ATP-MgCl2 normalized the otherwise progressive rise of the ileal mucosal-arterial Delta PCO2. Furthermore, it allowed blunting of the continuous decrease in hepatic lactate clearance, thus preserving the metabolic coupling between lactate release from the intestine and lactate utilization by the liver.
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Affiliation(s)
- Pierre Asfar
- Sektion Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Universitätsklinikum, Ulm, Germany
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