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Cao Y, Hu B, Fan Y, Wang W, Chi M, Nasser MI, Ma K, Liu C. The effects of apoptosis inhibitor of macrophage in kidney diseases. Eur J Med Res 2024; 29:21. [PMID: 38178221 PMCID: PMC10765713 DOI: 10.1186/s40001-023-01597-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 12/14/2023] [Indexed: 01/06/2024] Open
Abstract
Kidney disease is a progressive and irreversible condition in which immunity is a contributing factor that endangers human health. It is widely acknowledged that macrophages play a significant role in developing and causing numerous kidney diseases. The increasing focus on the mechanism by which macrophages express apoptosis inhibitor of macrophages (AIM) in renal diseases has been observed. AIM is an apoptosis inhibitor that stops different things that cause apoptosis from working. This keeps AIM-bound cell types alive. Notably, the maintenance of immune cell viability regulates immunity. As our investigation progressed, we concluded that AIM has two sides when it comes to renal diseases. AIM can modulate renal phagocytosis, expedite the elimination of renal tubular cell fragments, and mitigate tissue injury. AIM can additionally exacerbate the development of renal fibrosis and kidney disease by prolonging inflammation. IgA nephropathy (IgAN) may also worsen faster if more protein is in the urine. This is because IgA and immunoglobulin M are found together and expressed. In the review, we provide a comprehensive overview of prior research and concentrate on the impacts of AIM on diverse subcategories of nephropathies. We discovered that AIM is closely associated with renal diseases by playing a positive or negative role in the onset, progression, or cure of kidney disease. AIM is thus a potentially effective therapeutic target for kidney diseases.
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Affiliation(s)
- Yixia Cao
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Boyan Hu
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Yunhe Fan
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wei Wang
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Mingxuan Chi
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Moussa Ide Nasser
- Department of Cardiac Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong Cardiovascular Institute, Southern Medical University, Guangzhou, 510100, Guangdong, China.
| | - Kuai Ma
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan.
| | - Chi Liu
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China.
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China.
- Renal Department and Nephrology Institute, School of Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan Clinical Research Center for Kidney Diseases, Chengdu, China.
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Liu C, Xu X, He X, Ren J, Chi M, Deng G, Li G, Nasser MI. Activation of the Nrf-2/HO-1 signalling axis can alleviate metabolic syndrome in cardiovascular disease. Ann Med 2023; 55:2284890. [PMID: 38039549 PMCID: PMC10836253 DOI: 10.1080/07853890.2023.2284890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 11/10/2023] [Indexed: 12/03/2023] Open
Abstract
Background: Cardiovascular disease (CVD) is widely observed in modern society. CVDs are responsible for the majority of fatalities, with heart attacks and strokes accounting for approximately 80% of these cases. Furthermore, a significant proportion of these deaths, precisely one-third, occurs in individuals under 70. Metabolic syndrome encompasses a range of diseases characterized by various physiological dysfunctions. These include increased inflammation in adipose tissue, enhanced cholesterol synthesis in the liver, impaired insulin secretion, insulin resistance, compromised vascular tone and integrity, endothelial dysfunction, and atheroma formation. These factors contribute to the development of metabolic disorders and significantly increase the likelihood of experiencing cardiovascular complications.Method: We selected studies that proposed hypotheses regarding metabolic disease syndrome and cardiovascular disease (CVD) and the role of Nrf2/HO-1 and factor regulation in CVD research investigations based on our searches of Medline and PubMed.Results: A total of 118 articles were included in the review, 16 of which exclusively addressed hypotheses about the role of Nrf2 on Glucose regulation, while 16 involved Cholesterol regulation. Likewise, 14 references were used to prove the importance of mitochondria on Nrf2. Multiple studies have provided evidence suggesting the involvement of Nrf2/HO-1 in various physiological processes, including metabolism and immune response. A total of 48 research articles and reviews have been used to highlight the role of metabolic syndrome and CVD.Conclusion: This review provides an overview of the literature on Nrf2/HO-1 and its role in metabolic disease syndrome and CVD.
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Affiliation(s)
- Chi Liu
- Department of Nephrology, Sichuan Clinical Research Center for Kidney Disease, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Xingli Xu
- Ultrasound in Cardiac Electrophysiology and Biomechanics Key Laboratory of Sichuan Province, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xing He
- School of Clinical Medicine, Chengdu Medical College, Chengdu, China
| | - Junyi Ren
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Mingxuan Chi
- Department of Nephrology, Sichuan Clinical Research Center for Kidney Disease, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Gang Deng
- Department of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangdong Cardiovascular Institute, Guangzhou, Guangdong, China
| | - Guisen Li
- Department of Nephrology, Sichuan Clinical Research Center for Kidney Disease, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Moussa Ide Nasser
- Department of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangdong Cardiovascular Institute, Guangzhou, Guangdong, China
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Hu B, Ma K, Wang W, Han Z, Chi M, Nasser MI, Liu C. Research Progress of Pyroptosis in Renal Diseases. Curr Med Chem 2023; 31:CMC-EPUB-135155. [PMID: 37861024 DOI: 10.2174/0109298673255656231003111621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/31/2023] [Accepted: 09/01/2023] [Indexed: 10/21/2023]
Abstract
Kidney diseases, particularly Acute Kidney Injury (AKI) and Chronic Kidney Disease (CKD), are identified as global public health issues affecting millions of individuals. In addition, the frequency of renal diseases in the population has increased dramatically and rapidly in recent years. Renal disorders have become a significant public health burden. The pathophysiology of renal diseases is significantly connected with renal cell death, including apoptosis, necrosis, necroptosis, ferroptosis, pyroptosis, and autophagy, as is now recognized. Unlike other forms of cell death, pyroptosis is a unique planned cell death (PCD). Scientists have proven that pyroptosis is crucial in developing various disorders, and this phenomenon is gaining increasing attention. It is considered a novel method of inflammatory cell death. Intriguingly, inflammation is among the most significant pathological characteristics of renal disease. This study investigates the effects of pyroptosis on Acute Kidney Injury (AKI), Chronic Kidney Disease (CKD), Diabetic Nephropathy (DN), Immunoglobulin A (IgA) Nephropathy, and Lupus Nephritis (LN) to identify novel therapeutic targets for kidney diseases.
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Affiliation(s)
- Boyan Hu
- Chengdu University of Technology School of Medicine Chengdu China
| | - Kuai Ma
- Osaka University Graduate School of Medicine Department of Nephrology Osaka Japan
| | - Wei Wang
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital Department of Nephrology Chengdu China
| | - Zhongyu Han
- Chengdu University of Traditional Chinese Medicine eproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu China
| | - Mingxuan Chi
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital Department of Nephrology Chengdu China
| | - Moussa Ide Nasser
- Ganzhou People's Hospital Guangdong Cardiovascular Institute Ganzhou China
| | - Chi Liu
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital Department of Nephrology Chengdu China
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4
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Robinson AW, Nicholls D, Wells J, Moshtaghpour A, Chi M, Kirkland AI, Browning ND. Fast STEM Simulation Technique to Improve Quality of Inpainted Experimental Images Through Dictionary Transfer. Microsc Microanal 2023; 29:681-682. [PMID: 37613365 DOI: 10.1093/micmic/ozad067.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- A W Robinson
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
| | - D Nicholls
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
| | - J Wells
- Distributed Algorithms CDT, University of Liverpool, Liverpool, U.K
| | - A Moshtaghpour
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
- Rosalind Franklin Institute, Harwell Science & Innovation Campus, Didcot, U. K
| | - M Chi
- Centre for Nanophase Materials Sciences, Oak Ridge National Laboratory, TN, USA
| | - A I Kirkland
- Rosalind Franklin Institute, Harwell Science & Innovation Campus, Didcot, U. K
- Department of Materials, University of Oxford, Oxford, U. K
| | - N D Browning
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
- Physical & Computational Science, Pacific Northwest National Lab, Richland, WA, USA
- Sivananthan Laboratories, 590 Territorial Drive, Bolingbrook, IL, USA
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Oxley MP, Lou W, Yoon M, Chi M. Using Realistic Valence Electron Wave Functions in 4D-STEM Simulations. Microsc Microanal 2023; 29:743-744. [PMID: 37613452 DOI: 10.1093/micmic/ozad067.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Mark P Oxley
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Wei Lou
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - M Yoon
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - M Chi
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
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Chi M, Jiang T, He X, Peng H, Li Y, Zhang J, Wang L, Nian Q, Ma K, Liu C. Role of Gut Microbiota and Oxidative Stress in the Progression of Transplant-Related Complications following Hematopoietic Stem Cell Transplantation. Oxid Med Cell Longev 2023; 2023:3532756. [PMID: 37113743 PMCID: PMC10129428 DOI: 10.1155/2023/3532756] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/12/2022] [Accepted: 11/24/2022] [Indexed: 04/29/2023]
Abstract
Hematopoietic stem cell transplantation (HSCT), also known as bone marrow transplantation, has curative potential for various hematologic malignancies but is associated with risks such as graft-versus-host disease (GvHD), severe bloodstream infection, viral pneumonia, idiopathic pneumonia syndrome (IPS), lung fibrosis, and sinusoidal obstruction syndrome (SOS), which severely deteriorate clinical outcomes and limit the wide application of HSCT. Recent research has provided important insights into the effects of gut microbiota and oxidative stress (OS) on HSCT complications. Therefore, based on recent studies, we describe intestinal dysbiosis and OS in patients with HSCT and review recent molecular findings underlying the causal relationships of gut microbiota, OS, and transplant-related complications, focusing particularly on the involvement of gut microbiota-mediated OS in postengraftment complications. Also, we discuss the use of antioxidative and anti-inflammatory probiotics to manipulate gut microbiota and OS, which have been associated with promising effects in improving HSCT outcomes.
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Affiliation(s)
- Mingxuan Chi
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Tao Jiang
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
- Department of Hematology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province 610072, China
| | - Xing He
- School of Clinical Medicine, Chengdu Medical College, China
| | - Haoyu Peng
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yunlong Li
- Department of Urology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Jiong Zhang
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Li Wang
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Qing Nian
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
- Department of Blood Transfusion, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Kuai Ma
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Chi Liu
- Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
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Chi M, Tian Z, Ma K, Li Y, Wang L, Nasser MI, Liu C. The diseased kidney: aging and senescent immunology. Immun Ageing 2022; 19:58. [PMCID: PMC9666969 DOI: 10.1186/s12979-022-00313-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 10/23/2022] [Indexed: 11/17/2022]
Abstract
AbstractImmunosenescence is the deterioration of the innate and adaptive immune systems associated with aging and is primarily characterized by a reduction in T cell production and accumulation of atypical subsets. Age-related immunological dysfunction leads to impaired immune protection and persistent low-grade chronic inflammation, resulting in a decreased vaccination response and increased vulnerability to infection, cancer, cardiovascular disease, and autoimmune disease in the elderly. As the elderly constitute a growing proportion of the population with renal disease, immunosenescence is a normal aging process that is prevalent among older people. In addition, immunosenescence seems to be more pronounced in patients with kidney diseases than in healthy controls, as shown by severe chronic inflammation, accumulation of immune cells with the senescent phenotype (CD28− T cells, CD14+CD16+ monocytes), and proinflammatory cytokine production. Immunosenescence inhibits immunological clearance and renal tissue regeneration, thereby increasing the risk of permanent renal damage, infection, and cardiovascular events in patients with kidney disease, lowering the prognosis, and even influencing the efficacy of renal replacement treatment. Biological drugs (senomorphics and senolytics) target the aging immune system and exert renoprotective effects. This review aims to emphasize the features of immunosenescence and its influence on kidney diseases and immunotherapy, highlighting the future directions of kidney disease treatment using senescence-focused techniques.
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Liu C, Ma K, Zhang Y, He X, Song L, Chi M, Han Z, Li G, Zhang Q, Liu C. Kidney diseases and long non-coding RNAs in the limelight. Front Physiol 2022; 13:932693. [PMID: 36299256 PMCID: PMC9589442 DOI: 10.3389/fphys.2022.932693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
The most extensively and well-investigated sequences in the human genome are protein-coding genes, while large numbers of non-coding sequences exist in the human body and are even more diverse with more potential roles than coding sequences. With the unveiling of non-coding RNA research, long-stranded non-coding RNAs (lncRNAs), a class of transcripts >200 nucleotides in length primarily expressed in the nucleus and rarely in the cytoplasm, have drawn our attention. LncRNAs are involved in various levels of gene regulatory processes, including but not limited to promoter activity, epigenetics, translation and transcription efficiency, and intracellular transport. They are also dysregulated in various pathophysiological processes, especially in diseases and cancers involving genomic imprinting. In recent years, numerous studies have linked lncRNAs to the pathophysiology of various kidney diseases. This review summarizes the molecular mechanisms involved in lncRNAs, their impact on kidney diseases, and associated complications, as well as the value of lncRNAs as emerging biomarkers for the prevention and prognosis of kidney diseases, suggesting their potential as new therapeutic tools.
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Affiliation(s)
- Chenxin Liu
- Reproductive and Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kuai Ma
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yunchao Zhang
- Reproductive and Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xing He
- School of Clinical Medicine, Chengdu Medical College, Chengdu, China
| | - Linjiang Song
- Reproductive and Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mingxuan Chi
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Zhongyu Han
- Reproductive and Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guanhua Li
- Department of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- *Correspondence: Guanhua Li, ; Qinxiu Zhang, ; Chi Liu,
| | - Qinxiu Zhang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Guanhua Li, ; Qinxiu Zhang, ; Chi Liu,
| | - Chi Liu
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
- *Correspondence: Guanhua Li, ; Qinxiu Zhang, ; Chi Liu,
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Han Z, Ma K, Tao H, Liu H, Zhang J, Sai X, Li Y, Chi M, Nian Q, Song L, Liu C. A Deep Insight Into Regulatory T Cell Metabolism in Renal Disease: Facts and Perspectives. Front Immunol 2022; 13:826732. [PMID: 35251009 PMCID: PMC8892604 DOI: 10.3389/fimmu.2022.826732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/24/2022] [Indexed: 11/29/2022] Open
Abstract
Kidney disease encompasses a complex set of diseases that can aggravate or start systemic pathophysiological processes through their complex metabolic mechanisms and effects on body homoeostasis. The prevalence of kidney disease has increased dramatically over the last two decades. CD4+CD25+ regulatory T (Treg) cells that express the transcription factor forkhead box protein 3 (Foxp3) are critical for maintaining immune homeostasis and preventing autoimmune disease and tissue damage caused by excessive or unnecessary immune activation, including autoimmune kidney diseases. Recent studies have highlighted the critical role of metabolic reprogramming in controlling the plasticity, stability, and function of Treg cells. They are also likely to play a vital role in limiting kidney transplant rejection and potentially promoting transplant tolerance. Metabolic pathways, such as mitochondrial function, glycolysis, lipid synthesis, glutaminolysis, and mammalian target of rapamycin (mTOR) activation, are involved in the development of renal diseases by modulating the function and proliferation of Treg cells. Targeting metabolic pathways to alter Treg cells can offer a promising method for renal disease therapy. In this review, we provide a new perspective on the role of Treg cell metabolism in renal diseases by presenting the renal microenvironment、relevant metabolites of Treg cell metabolism, and the role of Treg cell metabolism in various kidney diseases.
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Affiliation(s)
- Zhongyu Han
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China.,Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kuai Ma
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hongxia Tao
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongli Liu
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiong Zhang
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Xiyalatu Sai
- Affiliated Hospital of Inner Mongolia University for the Nationalities, Tongliao, China
| | - Yunlong Li
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mingxuan Chi
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Qing Nian
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China.,Department of Blood Transfusion Sicuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Linjiang Song
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chi Liu
- Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Sichuan Renal Disease Clinical Research Center, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
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Li Y, Ma K, Han Z, Chi M, Sai X, Zhu P, Ding Z, Song L, Liu C. Immunomodulatory Effects of Heme Oxygenase-1 in Kidney Disease. Front Med (Lausanne) 2021; 8:708453. [PMID: 34504854 PMCID: PMC8421649 DOI: 10.3389/fmed.2021.708453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/31/2021] [Indexed: 01/23/2023] Open
Abstract
Kidney disease is a general term for heterogeneous damage that affects the function and the structure of the kidneys. The rising incidence of kidney diseases represents a considerable burden on the healthcare system, so the development of new drugs and the identification of novel therapeutic targets are urgently needed. The pathophysiology of kidney diseases is complex and involves multiple processes, including inflammation, autophagy, cell-cycle progression, and oxidative stress. Heme oxygenase-1 (HO-1), an enzyme involved in the process of heme degradation, has attracted widespread attention in recent years due to its cytoprotective properties. As an enzyme with known anti-oxidative functions, HO-1 plays an indispensable role in the regulation of oxidative stress and is involved in the pathogenesis of several kidney diseases. Moreover, current studies have revealed that HO-1 can affect cell proliferation, cell maturation, and other metabolic processes, thereby altering the function of immune cells. Many strategies, such as the administration of HO-1-overexpressing macrophages, use of phytochemicals, and carbon monoxide-based therapies, have been developed to target HO-1 in a variety of nephropathological animal models, indicating that HO-1 is a promising protein for the treatment of kidney diseases. Here, we briefly review the effects of HO-1 induction on specific immune cell populations with the aim of exploring the potential therapeutic roles of HO-1 and designing HO-1-based therapeutic strategies for the treatment of kidney diseases.
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Affiliation(s)
- Yunlong Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kuai Ma
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Zhongyu Han
- School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mingxuan Chi
- School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiyalatu Sai
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhaolun Ding
- Department of Emergency Surgery, Shannxi Provincial People's Hospital, Xi'an, China
| | - Linjiang Song
- School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chi Liu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
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Xu X, Huang L, Wu R, Zhang W, Ding G, Liu L, Chi M, Xie J. Multi-Feature Fusion Method for Identifying Carotid Artery Vulnerable Plaque. Ing Rech Biomed 2021. [DOI: 10.1016/j.irbm.2021.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Chi M, Ma K, Li Y, Quan M, Han Z, Ding Z, Liang X, Zhang Q, Song L, Liu C. Immunological Involvement of MicroRNAs in the Key Events of Systemic Lupus Erythematosus. Front Immunol 2021; 12:699684. [PMID: 34408748 PMCID: PMC8365877 DOI: 10.3389/fimmu.2021.699684] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 07/19/2021] [Indexed: 12/21/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an archetype autoimmune disease characterized by a myriad of immunoregulatory abnormalities that drives injury to multiple tissues and organs. Due to the involvement of various immune cells, inflammatory cytokines, and related signaling pathways, researchers have spent a great deal of effort to clarify the complex etiology and pathogenesis of SLE. Nevertheless, current understanding of the pathogenesis of SLE is still in the early stages, and available nonspecific treatment options for SLE patients remain unsatisfactory. First discovered in 1993, microRNAs (miRNAs) are small RNA molecules that control the expression of 1/3 of human genes at the post-transcriptional level and play various roles in gene regulation. The aberrant expression of miRNAs in SLE patients has been intensively studied, and further studies have suggested that these miRNAs may be potentially relevant to abnormal immune responses and disease progression in SLE. The aim of this review was to summarize the specific miRNAs that have been observed aberrantly expressed in several important pathogenetic processes in SLE, such as DCs abnormalities, overactivation and autoantibody production of B cells, aberrant activation of CD4+ T cells, breakdown of immune tolerance, and abnormally increased production of inflammatory cytokines. Our summary highlights a novel perspective on the intricate regulatory network of SLE, which helps to enrich our understanding of this disorder and ignite future interest in evaluating the molecular regulation of miRNAs in autoimmunity SLE.
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Affiliation(s)
- Mingxuan Chi
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kuai Ma
- Department of Nephrology, Osaka University, Suita, Japan
| | - Yunlong Li
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Min Quan
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhongyu Han
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhaolun Ding
- Department of Emergency Surgery, Shannxi Provincial People's Hospital, Xi'an, China
| | - Xin Liang
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qinxiu Zhang
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Linjiang Song
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chi Liu
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Nephrology, Sichuan Clinical Research Center for Kidney Disease, Sichuan Provincial People's Hospital, University of Electronic Science and Technology, Chengdu, China
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Zhao Y, Chi M, Zhang X, Wang S, Liu J, Liang W, Huang J. Expression, Purification, Crystallization and X-Ray Crystallographic Analysis of MoDabb1 from Magnaporthe oryzae. CRYSTALLOGR REP+ 2020. [DOI: 10.1134/s1063774519070307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yang X, Wang X, Chi M, Zhang M, Shan H, Zhang QH, Zhang J, Shi J, Zhang JZ, Wu RM, Li YL. Osteoprotegerin mediate RANK/RANKL signaling inhibition eases asthma inflammatory reaction by affecting the survival and function of dendritic cells. Allergol Immunopathol (Madr) 2019; 47:179-184. [PMID: 30292447 DOI: 10.1016/j.aller.2018.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/22/2018] [Accepted: 06/13/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Asthma is a chronic inflammatory, heterogeneous airway disease affecting millions of people around the world. Dendritic cells (DCs) are considered the most important antigen-presenting cell in asthma airway inflammatory reaction. But whether osteoprotegerin (OPG) mediate RANK/RANKL signaling inhibition influences asthma development by affecting the survival and function of DCs remains unclear. In this study, we assessed the effects of OPG on DCs and asthma. MATERIAL AND METHODS BALB/c mice immunized with ovalbumin (OVA) were challenged thrice with an aerosol of OVA every second day for eight days. Dexamethasone (1.0mg/kg) or OPG (50μg/kg) was administered intraperitoneally to OVA-immunized BALB/c mice on day 24 once a day for nine days. Mice were analyzed for effects of OPG on asthma, inflammatory cell infiltration and cytokine levels in lung tissue. The expression of RANK and β-actin was detected by Western Blot. DCs were isolated from mouse bone morrow. Cell survival was assessed by cell counting. The content of IL-12 was detected by ELISA. RESULTS Results showed that OVA increased the number of inflammatory factors in BALF, elevated lung inflammation scores in mice. OPG reversed the alterations induced by OVA in the asthmatic mice. OPG inhibited the survival and function of DC via inhibition of RANK/RANKL signaling. CONCLUSIONS This research proved inhibition of RANK/RANKL signaling by OPG could ease the inflammatory reaction in asthma, providing new evidence for the application of OPG on asthma.
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Affiliation(s)
- X Yang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - M Chi
- Department of Pediatrics, BaYi Children's Hospital of the PLA Army General Hospital, Beijing, China; The Clinical Medical College of the PLA Army, Second Military Medical University of People's Liberation Army, Shanghai, China
| | - M Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - H Shan
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q-H Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Shi
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J-Z Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - R-M Wu
- Department of Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Y-L Li
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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Skelding K, Gilchrist J, Pearsall E, Chi M, Bowden N, Lincz L. PO-144 Role of increased expression of brain and acute leukaemia, cytoplasmic (BAALC) in acute myeloid leukaemia (AML) DNA damage repair pathways. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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16
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Chi M, Wan YM, Gao JB. [Recurrent episodes of syncope caused by left main trunk originated from the right coronary sinus: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:232-233. [PMID: 29562433 DOI: 10.3760/cma.j.issn.0253-3758.2018.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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17
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Wi JM, Sung KH, Chi M. 'Orbital volume restoration rate after orbital fracture'; a CT-based orbital volume measurement for evaluation of orbital wall reconstructive effect. Eye (Lond) 2017; 31:713-719. [PMID: 28085134 DOI: 10.1038/eye.2016.311] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 11/27/2016] [Indexed: 11/09/2022] Open
Abstract
PurposeTo evaluate the effect of orbital reconstruction and factors related to the effect of orbital reconstruction by assessing of orbital volume using orbital computed tomography (CT) in cases of orbital wall fracture.MethodsIn this retrospective study, 68 patients with isolated blowout fractures were evaluated. The volumes of orbits and herniated orbital tissues were determined by CT scans using a three-dimensional reconstruction technique (the Eclipse Treatment Planning System). Orbital CT was performed preoperatively, immediately after surgery, and at final follow ups (minimum of 6 months). We evaluated the reconstructive effect of surgery making a new formula, 'orbital volume reconstruction rate' from orbital volume differences between fractured and contralateral orbits before surgery, immediately after surgery, and at final follow up.ResultsMean volume of fractured orbits before surgery was 23.01±2.60 cm3 and that of contralateral orbits was 21.31±2.50 cm3 (P=0.005). Mean volume of the fractured orbits immediately after surgery was 21.29±2.42 cm3, and that of the contralateral orbits was 21.33±2.52 cm3 (P=0.921). Mean volume of fractured orbits at final follow up was 21.50±2.44 cm3, and that of contralateral orbits was 21.32±2.50 cm3 (P=0.668). The mean orbital volume reconstruction rate was 100.47% immediately after surgery and 99.17% at final follow up. No significant difference in orbital volume reconstruction rate was observed with respect to fracture site or orbital implant type. Patients that underwent operation within 14 days of trauma had a better reconstruction rate at final follow up than patients who underwent operation over 14 days after trauma (P=0.039).ConclusionComputer-based measurements of orbital fracture volume can be used to evaluate the reconstructive effect of orbital implants and provide useful quantitative information. Significant reduction of orbital volume is observed immediately after orbital wall reconstruction surgery and the reconstruction effect is maintained for more than minimum 6 months. Patients that undergo surgery within 14 days of trauma has better reconstruction rates at final follow up, which supports the need for early surgery.
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Affiliation(s)
- J M Wi
- Department of Ophthalmology, Konyang University, Kim's Eye Hospital, Seoul, Korea
| | - K H Sung
- Department of Radiation Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - M Chi
- Department of Ophthalmology, Gachon University Gil Medical Center, Incheon, Korea
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Chi M, Kim HJ, Vagefi R, Kersten RC. Modified tarsotomy for the treatment of severe cicatricial entropion. Eye (Lond) 2016; 30:992-7. [PMID: 27101749 DOI: 10.1038/eye.2016.77] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 02/25/2016] [Indexed: 11/09/2022] Open
Abstract
PurposeTo analyze the efficacy of modified tarsotomy for the management of severe cicatricial entropion.MethodsTwenty-seven eyelids of 18 patients who underwent modified tarsotomy between March 2011 and July 2013 were retrospectively assessed. The data collected included patient demographics, etiology of cicatricial entropion, and surgical history. Outcome measures included surgical success rate, preoperative and postoperative eyelid position, and surgery-related complications.ResultsMean follow-up time was 13.2 months (range, 6-25.4 months), and the success rate was 81.8% (22 of 27 eyelids). Complications included eyelid margin notching (n=1) and blepharoptosis secondary to avascular necrosis of the distal marginal fragment (n=1), both were corrected by minor surgical intervention.ConclusionsThe study findings suggest modified tarsotomy is effective for the correction of severe cicatricial entropion.
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Affiliation(s)
- M Chi
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea.,Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
| | - H J Kim
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.,Department of Ophthalmology, Permanente Medical Group, Hayward, CA, USA
| | - R Vagefi
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
| | - R C Kersten
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
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19
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Chi M, Zhang L, Li JG, Qiu FB, Zhao YF, Wu YN. [The survey of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzo-p-furans and dioxin-like polychlorinated bophenyls in twenty-eight market beef]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:364-366. [PMID: 27029371 DOI: 10.3760/cma.j.issn.0253-9624.2016.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- M Chi
- School of Public Health, Shanxi Medical University, Shanxi 030001, China
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Moon H, Kim Y, Wi JM, Chi M. Morphological characteristics and clinical manifestations of orbital emphysema caused by isolated medial orbital wall fractures. Eye (Lond) 2016; 30:582-7. [PMID: 26795415 DOI: 10.1038/eye.2015.285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 12/08/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To investigate the morphological characteristics and clinical manifestations of orbital emphysema in patients with isolated medial orbital wall fractures. METHODS This was a retrospective observational case series of 348 orbits of 348 patients with isolated medial orbital wall fractures. Medical charts were reviewed, and computed tomographic (CT) images were examined to determine the morphological characteristics of orbital emphysema. RESULTS Orbital emphysema was detected in 70 orbits (20.1%). Large and communited type fracture was related with the presence of orbital emphysema (P<0.05). Orbital air pockets were detected in medial or superior extraconal orbital segment in all cases with orbital emphysema. Swollen eyelid with crepitus (90.0%) and supraduction limitation (31.4%) were developed with orbital emphysema. All cases with supraduction limitation accompanied with superior extraconal orbital emphysema and superior rectus muscle deviation, and these eyes were fully recovered with conservative management without surgery. CONCLUSIONS Orbital emphysema can be a cause of ocular motility restriction following orbital wall fracture. If supraduction limitation is noted with isolated medial wall fracture and superior orbital emphysema with superior rectus muscle deviation is detected by CT scan, conservative management can be a good choice for spontaneous recovery delaying the surgery.
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Affiliation(s)
- H Moon
- Yeonsu Ever Bright Eye Clinic, Incheon, Korea
| | - Y Kim
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea
| | - J M Wi
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea
| | - M Chi
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea
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Cao Y, Li D, Xu B, Wang M, Zhen N, Man L, Zhang Y, Chi M. A microRNA-152 that targets the phosphatase and tensin homolog to inhibit low oxygen induced-apoptosis in human brain microvascular endothelial cells. Genet Mol Res 2016; 15:gmr7371. [DOI: 10.4238/gmr.15027371] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhang L, Roling LT, Wang X, Vara M, Chi M, Liu J, Choi SI, Park J, Herron JA, Xie Z, Mavrikakis M, Xia Y. Platinum-based nanocages with subnanometer-thick walls and well-defined, controllable facets. Science 2015. [DOI: 10.1126/science.aab0801] [Citation(s) in RCA: 735] [Impact Index Per Article: 81.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Omari S, Waters M, Naranian T, Kim K, Perumalsamy AL, Chi M, Greenblatt E, Moley KH, Opferman JT, Jurisicova A. Mcl-1 is a key regulator of the ovarian reserve. Cell Death Dis 2015; 6:e1755. [PMID: 25950485 PMCID: PMC4669721 DOI: 10.1038/cddis.2015.95] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 02/07/2015] [Accepted: 02/18/2015] [Indexed: 02/05/2023]
Abstract
A majority of ovarian follicles are lost to natural death, but the disruption of factors involved in maintenance of the oocyte pool results in a further untimely follicular depletion known as premature ovarian failure. The anti-apoptotic B-cell lymphoma 2 (Bcl-2) family member myeloid cell leukemia-1 (MCL-1) has a pro-survival role in various cell types; however, its contribution to oocyte survival is unconfirmed. We present a phenotypic characterization of oocytes deficient in Mcl-1, and establish its role in maintenance of the primordial follicle (PMF) pool, growing oocyte survival and oocyte quality. Mcl-1 depletion resulted in the premature exhaustion of the ovarian reserve, characterized by early PMF loss because of activation of apoptosis. The increasingly diminished surviving cohort of growing oocytes displayed elevated markers of autophagy and mitochondrial dysfunction. Mcl-1-deficient ovulated oocytes demonstrated an increased susceptibility to cellular fragmentation with activation of the apoptotic cascade. Concomitant deletion of the pro-apoptotic Bcl-2 member Bcl-2-associated X protein (Bax) rescued the PMF phenotype and ovulated oocyte death, but did not prevent the mitochondrial dysfunction associated with Mcl-1 deficiency and could not rescue long-term breeding performance. We thus recognize MCL-1 as the essential survival factor required for conservation of the postnatal PMF pool, growing follicle survival and effective oocyte mitochondrial function.
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Affiliation(s)
- S Omari
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - M Waters
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada
| | - T Naranian
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - K Kim
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - A L Perumalsamy
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada
| | - M Chi
- Department of Obstetrics and Gynecology, Washington University in St. Louis, 660S Euclid Avenue, St. Louis, MO 63110, USA
| | - E Greenblatt
- 1] Centre for Fertility and Reproductive Health, Mount Sinai Hospital, 250 Dundas Street, Toronto, Ontario M5T 2Z5, Canada [2] Department of Obstetrics and Gynecology, University of Toronto, 92 College Street, Toronto, Ontario M5G 1L4, Canada
| | - K H Moley
- Department of Obstetrics and Gynecology, Washington University in St. Louis, 660S Euclid Avenue, St. Louis, MO 63110, USA
| | - J T Opferman
- Department of Biochemistry, St. Jude Children's Research Hospital, MS 340, Room D4063D, 262 Danny Thomas Place, Memphis, TN 38105, USA
| | - A Jurisicova
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada [3] Department of Obstetrics and Gynecology, University of Toronto, 92 College Street, Toronto, Ontario M5G 1L4, Canada
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Chi M, Chen J, Ye Y, Tseng HY, Lai F, Tay KH, Jin L, Guo ST, Jiang CC, Zhang XD. Adipocytes contribute to resistance of human melanoma cells to chemotherapy and targeted therapy. Curr Med Chem 2014; 21:1255-67. [PMID: 24304284 DOI: 10.2174/0929867321666131129114742] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 11/08/2013] [Accepted: 11/25/2013] [Indexed: 11/22/2022]
Abstract
Epidemiological evidence has linked the development and progression of several cancers including melanoma with obesity. However, whether obesity impinges on responses of cancer cells to treatment remains less understood. Here we report that human adipocytes contribute to resistance of melanoma cells to various therapeutic agents. Exposure to media from adipocyte cultures (adipocyte media) increased cell proliferation and reduced sensitivity of melanoma cells to apoptosis induced by diverse chemotherapeutic drugs, including the DNA-damaging drug cisplatin, the microtubuletargeting agent docetaxel, and the histone deacetylase inhibitor SAHA. This was associated with increased activation of PI3K/Akt and MEK/ERK signaling, and was attenuated by a PI3K or MEK inhibitor. The effect of adipocyte media on melanoma cells was, at least in part, due to the interaction between the adipokine leptin and its long form receptor OB-Rb, in that immunodepletion of leptin in adipocyte media or siRNA knockdown of OB-Rb in melanoma cells reversed the increase in Akt and ERK activation, enhancement in cell proliferation, and importantly, protection of melanoma cells against the drugs. In support, recombinant leptin partially recapitulated the effect of adipocyte media on melanoma cells. Of note, OB-Rb was increased on the surface of melanoma cells compared to melanocytes, whereas leptin short form receptors appeared to be suppressed post-transcriptionally, suggesting that OB-Rb was selectively upregulated in melanoma cells. Collectively, these results indicate that adipocytes contribute to the resistance of melanoma cells to chemotherapeutic drugs and agents targeting the PI3K/Akt and MEK/ERK pathways, and suggest that inhibition of the leptin/ OB-Rb system may be useful to improve the efficacy of multiple therapeutic approaches in the treatment of melanoma.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - X D Zhang
- LS3-49, Life Science Building, University of Newcastle, Callaghan, NSW, Australia.
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Ahluwalia M, Venur VA, Chi M, Chao S, Lilyana A, Elson P, Suh J, Barnett G. BM-02 * NEW DISEASE SPECIFIC GRADED PROGNOSTIC ASSESSMENT OF BRAIN METASTASIS FROM LUNG, BREAST, MELANOMA AND RENAL MALIGNANCIES. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou240.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chen C, Kang Y, Huo Z, Zhu Z, Huang W, Xin HL, Snyder JD, Li D, Herron JA, Mavrikakis M, Chi M, More KL, Li Y, Markovic NM, Somorjai GA, Yang P, Stamenkovic VR. Highly Crystalline Multimetallic Nanoframes with Three-Dimensional Electrocatalytic Surfaces. Science 2014; 343:1339-43. [DOI: 10.1126/science.1249061] [Citation(s) in RCA: 2051] [Impact Index Per Article: 205.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Beekman C, Siemons W, Ward TZ, Chi M, Howe J, Biegalski MD, Balke N, Maksymovych P, Farrar AK, Romero JB, Gao P, Pan XQ, Tenne DA, Christen HM. Phase transitions, phase coexistence, and piezoelectric switching behavior in highly strained BiFeO(3) films. Adv Mater 2013; 25:5561-7. [PMID: 23847158 DOI: 10.1002/adma.201302066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Indexed: 05/12/2023]
Abstract
Highly strained BiFeO3 films transition into a true tetragonal state at 430 °C but remain polar to much higher temperatures (∼800 °C). Piezoelectric switching is only possible up to 300 °C, i.e., at temperatures for which strain stabilizes the stripe-like coexistence of multiple polymorphs.
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Affiliation(s)
- C Beekman
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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Tseng H, Chi M, Smith N, Marcy S, Sy L, Jacobsen S. Effectiveness of herpes zoster vaccine on recurrent herpes zoster among an immunocompetent elderly population. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Beaber B, Chi M, Brara S, Zhang J, Langer-Gould A. Treatment with Beta-Interferons or Glatiramer Acetate and the Risk of Postpartum Multiple Sclerosis Relapses (P06.192). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p06.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Diedrichs H, Hagemeister J, Chi M, Boelck B, Müller-Ehmsen J, Schneider CA. Activation of the calcineurin/NFAT signalling cascade starts early in human hypertrophic myocardium. J Int Med Res 2008; 35:803-18. [PMID: 18034994 DOI: 10.1177/147323000703500609] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Cardiac hypertrophy is an independent risk factor for heart failure. Recent studies on gene regulation of proteins have involved intracellular Ca2+ homeostasis. The Ca2+-sensitive phosphatase, calcineurin, is one potential regulator of the hypertrophic response, so we aimed to investigate the calcineurin-dependent signal pathway at different stages of hypertrophy in human myocardium. We found the calcineurin pathway to be significantly activated in hypertrophic compared with non-hypertrophic myocardium as demonstrated by increased calcineurin activity and expression of calcineurin A-beta and B, and GATA-4, and a shift of phosphorylated cytoplasmic NFAT-3 into the nucleus as dephosphorylated nuclear NFAT-3. There was a tendency for these changes to be more pronounced in the decompensated compared with the compensated hypertrophic myocardium. The present study provides evidence for significant activation of the Ca2+-triggered calcineurin pathway in hypertrophic humans. Already present in compensated hypertrophy it showed a tendency to a further increase following transition to decompensated hypertrophy.
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Affiliation(s)
- H Diedrichs
- Laboratory of Muscle Research and Molecular Cardiology, Department of Internal Medicine, University of Cologne, Cologne, Germany.
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Liu H, Choi B, Zhang J, Tutt T, Chi M, Wang C, Luo D, Prado K, Mohan R, Dong L, Balter P. Assessing Respiration-Induced Tumor Motion and Margin of Internal Target Volume for Image-Guided Radiotherapy of Lung Cancers. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Insulin-like growth factors are involved in the regulation of gonadotropin secretion. Insulin-like growth factor I (IGF-I) has an augmenting effect on gonodotropin-releasing hormone (GnRH)-induced luteinizing hormone (LH) release from female rat gonadotrophs that is facilitated by estradiol. To identify the underlying mechanisms, we investigated whether IGF-I influences total LH pool and the production of intracellular inositol phosphate. In another series of experiments we tested whether IGF-II and estradiol affect LH release of gonadotrophs. Pituitary cells were incubated with 100 pM IGF-I and/or 100 pM estradiol for 24 h. They were stimulated, partially in the presence of Wortmannin, an inhibitor of phosphoinositide 3-kinase, with 330 pM GnRH for 3 h. Subsequently, total LH pool (released and remaining hormone content in lysed cells) in cultures was measured. Intracellular inositol trisphosphate of alphaT3-1 cells, a gonadotrope cell line, treated with estradiol and IGF-I as described before and stimulated with 100 nM GnRH for 15 min was analyzed by ion exchange chromatography. To determine the interaction of IGF-II and estradiol on GnRH-stimulated LH secretion, cells were treated with increasing concentrations of IGF-II (0.05 pM-10 nM) and 100 pM estradiol. IGF-I significantly increased the accumulation of inositol trisphosphate in basal and GnRH-stimulated cells. IGF-I, estradiol, or their combinations did not change total LH pool, although they enhanced LH secretion. Wortmannin abolished the positive effects of IGF-I and estradiol on LH secretion. IGF-II alone increased basal, but not GnRH-induced LH secretion at low concentrations (0.05 pM). Additional estradiol treatment further increased basal, but not GnRH-induced LH secretion. In conclusion, our results suggest that increased LH secretion from female anterior pituitary cells after IGF treatment is due to the amplification of early signal transduction steps rather than changes in LH pool. The inositol trisphosphate signaling pathway is involved in the regulation of LH secretion from gonadotrophs treated with IGF-I. It is not likely that IGF-II plays an important role in the regulation of gonadotropin secretion.
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Affiliation(s)
- J M Weiss
- Department of Obstetrics and Gynecology, Medical University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany.
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Abstract
To assess the Karnofsky Performance Status (KPS) scale and the Eastern Cooperative Oncology Group (ECOG) scale with respect to interobserver reliability and interobserver difference between the two scales, 100 consecutive patients in a medical oncology unit were assessed using both scales, which were then given to three independent raters and also to the patients themselves. There was a high level of agreement between most paired assessors. There were three exceptions, which were the RMO/patient and nurse/patient pairs on the KPS scale and the RMO/patient pair on the ECOG scale. The level of agreement was better on the ECOG scale. For individual raters there is no statistical difference between the ECOG and Karnofsky scales. There was good agreement between all raters for both scales. Interobserver variability was less using the ECOG scale. We conclude that either scale could be used with good interobserver reliability. The ECOG scale minimises differences between observers.
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Affiliation(s)
- A E Taylor
- Department of Medical Oncology, Royal Adelaide Hospital Cancer Centre, Royal Adelaide Hospital, SA, Australia
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Taylor A, Olver I, Sivanthan T, Chi M, Purnell C. Observer error in grading performance status in cancer patients. Eur J Cancer 1999. [DOI: 10.1016/s0959-8049(99)81891-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Organophosphate and other ligands were examined for binding on the membrane-bond nicotinic receptor at three conformational states. Soman (pinacolyl methylphosphonofluoridate), sarin (isopropyl methylphosphonofluoridate, tabun (ethyl N-dimethylphosphoramidocyanidate) and phencyclidine did not show any effect on the binding of [25I]alpha-cobrotoxin to the nicotinic receptor. However, VX, O-ethyl-S-(2-diisopropylaminoethyl) methylphosphonothiolate, at concentrations higher than 10 umol/L exhibited profound inhibition on the equilibrium binding rates in a concentration-dependent manner. Agonist nicotine and antagonist d-tubocurarine also showed significant inhibitions.
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Affiliation(s)
- M Chi
- Institute of Pharmacology and Toxicology, Beijing, China
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Sank A, Chi M, Shima T, Reich R, Martin GR. Increased calcium levels alter cellular and molecular events in wound healing. Surgery 1989; 106:1141-7; discussion 1147-8. [PMID: 2555928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Surgical morbidity is dictated directly by wound healing. We have studied the effects of elevated calcium levels using cultured keratinocytes in vitro on two of the rate-limiting steps of wound healing, chemotaxis (directed migration) and adhesion. We found that the increased calcium (10 mmol/L) significantly inhibited both keratinocyte chemotaxis and adhesion (p less than 0.05). The calcium effect on adhesion could be partially reversed by pretreatment with the calcium channel blocker verapamil. Based on these data, an animal model was formulated in which topical calcium (5 mmol/L/day) was added to linear incision wounds. This resulted in significantly (p less than 0.05) delayed wound contraction characteristic of a chronic or impaired wound. Wound contraction depends on the presence of fibroblasts that synthesize collagen. The chronic wound was characterized by increased collagenase activity (p less than 0.05) but little alteration in collagen I synthesis. The addition of verapamil to these chronic wounds resulted in improved wound closure. These studies define the molecular and cellular events occurring as a result of the addition of elevated levels of calcium both in vitro and in vivo. Calcium may play a key role in the pathogenesis of chronic wounds.
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Affiliation(s)
- A Sank
- Laboratory of Developmental Biology and Anomalies, National Institutes of Health, Bethesda, Md. 20892
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Natowicz M, Hallett DW, Frier C, Chi M, Schlesinger PH, Baenziger JU. Recognition and receptor-mediated uptake of phosphorylated high mannose-type oligosaccharides by cultured human fibroblasts. J Cell Biol 1983; 96:915-9. [PMID: 6300141 PMCID: PMC2112397 DOI: 10.1083/jcb.96.3.915] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The intracellular transport of newly synthesized lysosomal hydrolases to lysosomes requires the presence of one or more phosphorylated high mannose-type oligosaccharides per enzyme. A receptor that mediates mannose-6-PO4-specific uptake of lysosomal enzymes is expressed on the surface of fibroblasts and presumably accounts for the intracellular transport of newly synthesized enzymes to the lysosome. In this study, we examined the internalization of lysosomal enzyme-derived phosphorylated oligosaccharides by cultured human fibroblasts. Oligosaccharides of known specific activity bearing a single phosphate in monoester linkage were internalized with Kuptake of 3.2 X 10(-7) M, whereas oligosaccharides bearing two phosphates in monoester linkage were internalized with a Kuptake of 3.9 X 10(-8) M. Thus, phosphorylated high mannose-type oligosaccharides appear to be the minimal structure required for recognition and uptake by the fibroblast receptor. The finding that the Kuptake for monophosphorylated oligosaccharides is 100-fold less than the reported Ki for mannose-6-phosphate indicates that the fibroblast phosphomannosyl receptor contains a binding site that recognizes features of the oligosaccharide in addition to mannose-6-phosphate.
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Chi M, Irwin L. Elastic deformations in strips with holes loaded through pins. J Res Natl Bur Stand (1977) 1959. [DOI: 10.6028/jres.062.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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