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Sikiric P, Sever M, Krezic I, Vranes H, Kalogjera L, Smoday IM, Vukovic V, Oroz K, Coric L, Skoro M, Kavelj I, Zubcic S, Sikiric S, Beketic Oreskovic L, Oreskovic I, Blagaic V, Brcic K, Strbe S, Staresinic M, Boban Blagaic A, Skrtic A, Seiwerth S. New studies with stable gastric pentadecapeptide protecting gastrointestinal tract. significance of counteraction of vascular and multiorgan failure of occlusion/occlusion-like syndrome in cytoprotection/organoprotection. Inflammopharmacology 2024:10.1007/s10787-024-01499-8. [PMID: 38980576 DOI: 10.1007/s10787-024-01499-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 05/28/2024] [Indexed: 07/10/2024]
Abstract
Since the early 1990s, when Robert's and Szabo's cytoprotection concept had already been more than one decade old, but still not implemented in therapy, we suggest the stable gastric pentadecapeptide BPC 157 as the most relevant mediator of the cytoprotection concept. Consequently, it can translate stomach and gastrointestinal mucosal maintenance, epithelium, and endothelium cell protection to the therapy of other tissue healing (organoprotection), easily applicable, as native and stable in human gastric juice for more than 24 h. These overwhelm current clinical evidence (i.e., ulcerative colitis, phase II, no side effects, and no lethal dose (LD1) in toxicology studies), as BPC 157 therapy effectively combined various tissue healing and lesions counteraction. BPC 157 cytoprotection relevance and vascular recovery, activation of collateral pathways, membrane stabilizer, eye therapy, wound healing capability, brain-gut and gut-brain functioning, tumor cachexia counteraction, muscle, tendon, ligament, and bone disturbances counteraction, and the heart disturbances, myocardial infarction, heart failure, pulmonary hypertension, arrhythmias, and thrombosis counteraction appeared in the recent reviews. Here, as concept resolution, we review the counteraction of advanced Virchow triad circumstances by activation of the collateral rescuing pathways, depending on injury, activated azygos vein direct blood flow delivery, to counteract occlusion/occlusion-like syndromes starting with the context of alcohol-stomach lesions. Counteraction of major vessel failure (congested inferior caval vein and superior mesenteric vein, collapsed azygos vein, collapsed abdominal aorta) includes counteraction of the brain (intracerebral and intraventricular hemorrhage), heart (congestion, severe arrhythmias), lung (hemorrhage), and congestion and lesions in the liver, kidney, and gastrointestinal tract, intracranial (superior sagittal sinus), portal and caval hypertension, aortal hypotension, and thrombosis, peripherally and centrally.
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Affiliation(s)
- Predrag Sikiric
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia.
| | - Marko Sever
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivan Krezic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Hrvoje Vranes
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Luka Kalogjera
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivan Maria Smoday
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Vlasta Vukovic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Katarina Oroz
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Luka Coric
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Marija Skoro
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Diagnostic and Interventional Radiology, Sestre Milosrdnice University Hospital Center, Zagreb, Croatia
| | - Ivana Kavelj
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Diagnostic and Interventional Radiology, Sestre Milosrdnice University Hospital Center, Zagreb, Croatia
| | - Slavica Zubcic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Suncana Sikiric
- Department of Pathology, School of Medicine, University of Zagreb, 10000, Zagreb, Croatia
| | | | - Ivana Oreskovic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Vladimir Blagaic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Klara Brcic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Sanja Strbe
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Mario Staresinic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Alenka Boban Blagaic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Anita Skrtic
- Department of Pathology, School of Medicine, University of Zagreb, 10000, Zagreb, Croatia
| | - Sven Seiwerth
- Department of Pathology, School of Medicine, University of Zagreb, 10000, Zagreb, Croatia
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Das P, Battu S, Mehra L, Singh A, Ahmad M, Agarwal A, Chauhan A, Ahmad A, Vishnubhatla S, Gupta SD, Ahuja V, Makharia G. Correlation between intestinal stem cell niche changes and small bowel crypt failure in patients with treatment-naïve celiac disease. INDIAN J PATHOL MICR 2024; 67:259-266. [PMID: 38427764 DOI: 10.4103/ijpm.ijpm_760_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/27/2023] [Indexed: 03/03/2024] Open
Abstract
OBJECTIVES We hypothesized that crypt failure in the small bowel results in villous flattening in patients with celiac disease (CeD). We investigated whether alterations in the stem cell niche (ISC) are responsible for this phenomenon. MATERIALS AND METHODS We included 92 duodenal (D2/3) biopsies from treatment-naive patients of CeD and 37 controls. All underwent screening for serum anti-tissue transglutaminase and endoscopic upper small bowel biopsy. Immunohistochemical markers were used to investigate ISC niche alterations, including LGR5 for crypt basal cells (CBC), Bmi1 for position 4+ cells, β-Defensin for Paneth cells, R-spondin1 as WNT activator, transcription factor-4 as WNT transcription factor, BMP receptor1A as WNT inhibitor, fibronectin-1 as periepithelial stromal cell marker, H2AX as apoptosis marker, and Ki67 as proliferation marker. We also analyzed IgA anti-tTG2 antibody deposits by using dual-color immunofluorescence staining. RESULTS We found that in biopsies from patients with treatment-naive CeD with modified Marsh grade 3a-3c changes, the epithelial H2AX apoptotic index was upregulated than in controls. LGR5+ crypt basal cells were upregulated in all modified Marsh grades compared to controls. However, the Ki67 proliferation index, expressions of WNT-activator RSPO1, and position-4 cell marker Bmi1 did not significantly alter in patients' biopsies as compared to controls ( P = 0.001). We also observed depletion of pericrypt stromal fibronectin-1 in patients with CeD compared to controls. In addition, we identified IgA anti-TG2 antibody deposits in pericrypt stroma. CONCLUSIONS Our data suggests that ISC niche failure is a plausible hypothesis for villous flattening in patients with CeD, resulting from pericrypt IgA anti-TG2 antibody complex-mediated stromal depletion.
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Affiliation(s)
- Prasenjit Das
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Sudha Battu
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Lalita Mehra
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Alka Singh
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Muzaffar Ahmad
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Ashish Agarwal
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Ashish Chauhan
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Anam Ahmad
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | | | | | - Vineet Ahuja
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Govind Makharia
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
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Britzen-Laurent N, Weidinger C, Stürzl M. Contribution of Blood Vessel Activation, Remodeling and Barrier Function to Inflammatory Bowel Diseases. Int J Mol Sci 2023; 24:ijms24065517. [PMID: 36982601 PMCID: PMC10051397 DOI: 10.3390/ijms24065517] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) consist of a group of chronic inflammatory disorders with a complex etiology, which represent a clinical challenge due to their often therapy-refractory nature. In IBD, inflammation of the intestinal mucosa is characterized by strong and sustained leukocyte infiltration, resulting in the loss of epithelial barrier function and subsequent tissue destruction. This is accompanied by the activation and the massive remodeling of mucosal micro-vessels. The role of the gut vasculature in the induction and perpetuation of mucosal inflammation is receiving increasing recognition. While the vascular barrier is considered to offer protection against bacterial translocation and sepsis after the breakdown of the epithelial barrier, endothelium activation and angiogenesis are thought to promote inflammation. The present review examines the respective pathological contributions of the different phenotypical changes observed in the microvascular endothelium during IBD, and provides an overview of potential vessel-specific targeted therapy options for the treatment of IBD.
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Affiliation(s)
- Nathalie Britzen-Laurent
- Division of Surgical Research, Department of Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany
- Correspondence:
| | - Carl Weidinger
- Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
| | - Michael Stürzl
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany
- Division of Molecular and Experimental Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
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Li Y, Wang X, He B, Zhang H, Dai W, Li G, Zhang Q. An ameliorated anti-hTNF-α therapy for arthritis via carrier-free macromolecular nanoparticles consisted of infliximab. Int J Pharm 2023; 630:122414. [PMID: 36403893 DOI: 10.1016/j.ijpharm.2022.122414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 10/27/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
Abstract
Infliximab (INF) is intravenously used for the clinical treatment of rheumatoid arthritis. However, it can cause serious side effects, which are mainly associated with systemic exposure and high doses. Here, we developed a modified hydrophobic ion-pairing complexes (INF HIPC) through the sequential introduction of bovine lactoferrin (BLF) and hyaluronic acid (HA) with opposite charges into the INF solution. INF and BLF were found to be not only integrally responsible for the structural integrity of HIPC but also were determined to have respective biological activities by binding human tumor necrosis factor-alpha (hTNF-α) or promoting the proliferation of osteoblasts. The INF HIPC had good stability, high drug-loading efficiency, and long-term retention effects. Whether via knee joint injection or intravenous injection, INF HIPC resulted in lower hTNF-α levels and less cartilage destruction than INFs in the transgenic mouse model. At the same time, INF HIPC could reduce toxicity based on body weight changes in transgenic mice. Our findings provide a simple and promising avenue to develop advanced delivery systems for other antibodies and macromolecules.
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Affiliation(s)
- Yong Li
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Xueqing Wang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Bing He
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Hua Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Wenbing Dai
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China.
| | - Ge Li
- Guangdong Laboratory Animals Monitoring Institute, Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510663, PR China.
| | - Qiang Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China; Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, PR China.
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Wang S, Lei B, Zhang E, Gong P, Gu J, He L, Han L, Yuan Z. Targeted Therapy for Inflammatory Diseases with Mesenchymal Stem Cells and Their Derived Exosomes: From Basic to Clinics. Int J Nanomedicine 2022; 17:1757-1781. [PMID: 35469174 PMCID: PMC9034888 DOI: 10.2147/ijn.s355366] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/09/2022] [Indexed: 12/13/2022] Open
Abstract
Inflammation is a beneficial and physiological process, but there are a number of inflammatory diseases which have detrimental effects on the body. In addition, the drugs used to treat inflammation have toxic side effects when used over a long period of time. Mesenchymal stem cells (MSCs) are pluripotent stem cells that can be isolated from a variety of tissues and can be differentiate into diverse cell types under appropriate conditions. They also exhibit noteworthy anti-inflammatory properties, providing new options for the treatment of inflammatory diseases. The therapeutic potential of MSCs is currently being investigated for various inflammatory diseases, such as kidney injury, lung injury, osteoarthritis (OA), rheumatoid arthritis (RA), and inflammatory bowel disease (IBD). MSCs can perform multiple functions, including immunomodulation, homing, and differentiation, to enable damaged tissues to form a balanced inflammatory and regenerative microenvironment under severe inflammatory conditions. In addition, accumulated evidence indicates that exosomes from extracellular vesicles of MSCs (MSC-Exos) play an extraordinary role, mainly by transferring their components to recipient cells. In this review, we summarize the mechanism and clinical trials of MSCs and MSC-Exos in various inflammatory diseases in detail, with a view to contributing to the treatment of MSCs and MSC-Exos in inflammatory diseases.
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Affiliation(s)
- Shuo Wang
- College of Pharmacy, Southwest Minzu University, Chengdu, 610041, Sichuan, People’s Republic of China
| | - Biyu Lei
- College of Pharmacy, Southwest Minzu University, Chengdu, 610041, Sichuan, People’s Republic of China
| | - E Zhang
- Department of Basic Sciences, Officers College of People’s Armed Police, Chengdu, Sichuan, 610213, People’s Republic of China
| | - Puyang Gong
- College of Pharmacy, Southwest Minzu University, Chengdu, 610041, Sichuan, People’s Republic of China
| | - Jian Gu
- College of Pharmacy, Southwest Minzu University, Chengdu, 610041, Sichuan, People’s Republic of China
| | - Lili He
- College of Pharmacy, Southwest Minzu University, Chengdu, 610041, Sichuan, People’s Republic of China
| | - Lu Han
- College of Pharmacy, Southwest Minzu University, Chengdu, 610041, Sichuan, People’s Republic of China
| | - Zhixiang Yuan
- College of Pharmacy, Southwest Minzu University, Chengdu, 610041, Sichuan, People’s Republic of China
- Correspondence: Zhixiang Yuan; Lu Han, Email ;
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Efficacy and Safety of Mesenchymal Stem Cell Transplantation in the Treatment of Autoimmune Diseases (Rheumatoid Arthritis, Systemic Lupus Erythematosus, Inflammatory Bowel Disease, Multiple Sclerosis, and Ankylosing Spondylitis): A Systematic Review and Meta-Analysis of Randomized Controlled Trial. Stem Cells Int 2022; 2022:9463314. [PMID: 35371265 PMCID: PMC8970953 DOI: 10.1155/2022/9463314] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/05/2021] [Accepted: 01/04/2022] [Indexed: 01/30/2023] Open
Abstract
Objective To evaluate the efficacy and safety of mesenchymal stem cell (MSC) transplantation in the treatment of autoimmune diseases. Methods The Chinese and English databases were searched for clinical research on the treatment of autoimmune diseases with mesenchymal stem cells. The search time range is from a self-built database to October 1, 2021. Two reviewers independently screened the literature according to the inclusion and exclusion criteria, extracted data, and evaluated the bias of the included studies. RevMan 5.3 analysis software was used for meta-analysis. Results A total of 18 RCTs involving 5 autoimmune diseases were included. The 5 autoimmune disease were rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), inflammatory bowel disease, ankylosing spondylitis, and multiple sclerosis. For RA, the current randomized controlled trials (RCTs) still believe that stem cell transplantation may reduce disease activity, improve the clinical symptoms (such as DAS28), and the percentage of CD4+CD 25+Foxp3+Tregs in the response group increased and the percentage of CD4+IL-17A+Th17 cells decreased. The total clinical effective rate of RA is 54%. For SLE, the results showed that mesenchymal stem cell transplantation may improve SLEDAI [-2.18 (-3.62, -0.75), P = 0.003], urine protein [-0.93 (-1.04, -0.81), P < 0.00001], and complement C3 [0.31 (0.19, 0.42), P < 0.00001]. For inflammatory bowel disease, the results showed that mesenchymal stem cell transplantation may improve clinical efficacy [2.50 (1.07, 5.84), P = 0.03]. For ankylosing spondylitis, MSC treatment for 6 months may increase the total effective rate; reduce erythrocyte sedimentation rate, intercellular adhesion molecules, and serum TNF-α; and improve pain and activity. For multiple sclerosis, the current research results are still controversial, so more RCTs are needed to amend or confirm the conclusions. No obvious adverse events of mesenchymal stem cell transplantation were found in all RCTs. Conclusion MSCs have a certain effect on different autoimmune diseases, but more RCTs are needed to further modify or confirm the conclusion.
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Li H, Su YS, He W, Zhang JB, Zhang Q, Jing XH, Zhan LB. The nonneuronal cholinergic system in the colon: A comprehensive review. FASEB J 2022; 36:e22165. [PMID: 35174565 DOI: 10.1096/fj.202101529r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 01/07/2023]
Abstract
Acetylcholine (ACh) is found not only in cholinergic nerve termini but also in the nonneuronal cholinergic system (NNCS). ACh is released from cholinergic nerves by vesicular ACh transporter (VAChT), but ACh release from the NNCS is mediated by organic cation transporter (OCT). Recent studies have suggested that components of the NNCS are located in intestinal epithelial cells (IECs), crypt-villus organoids, immune cells, intestinal stem cells (ISCs), and vascular endothelial cells (VECs). When ACh enters the interstitial space, its self-modulation or effects on adjacent tissues are part of the range of its biological functions. This review focuses on the current understanding of the mechanisms of ACh synthesis and release in the NNCS. Furthermore, studies on ACh functions in colonic disorders suggest that ACh from the NNCS contributes to immune regulation, IEC and VEC repair, ISC differentiation, colonic movement, and colonic tumor development. As indicated by the features of some colonic disorders, ACh and the NNCS have positive and negative effects on these disorders. Furthermore, the NNCS is located in multiple colonic organs, and the specific effects and cross-talk involving ACh from the NNCS in different colonic tissues are explored.
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Affiliation(s)
- Han Li
- Changzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Changzhou, China.,Nanjing University of Chinese Medicine, Nanjing, China
| | - Yang-Shuai Su
- Research Center of Meridians, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei He
- Research Center of Meridians, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jian-Bin Zhang
- The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Qi Zhang
- Changzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Changzhou, China
| | - Xiang-Hong Jing
- Research Center of Meridians, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li-Bin Zhan
- Nanjing University of Chinese Medicine, Nanjing, China.,Liaoning University of Traditional Chinese Medicine, Shenyang, China
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Ma W, Zhong T, Chen J, Ke X, Zuo H, Liu Q. Exogenous H2S reverses high glucose-induced endothelial progenitor cells dysfunction via regulating autophagy. Bioengineered 2022; 13:1126-1136. [PMID: 35258406 PMCID: PMC8805971 DOI: 10.1080/21655979.2021.2017695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This study aims to determine the effect of exogenous hydrogen sulfide (H2S) under high glucose (HG)-induced injury in endothelial progenitor cells (EPCs), and to explore the possible underlying mechanisms. Mononuclear cells were isolated from the peripheral blood of healthy volunteers by density-gradient centrifugation and identified as late EPCs by immunofluorescence and flow cytometry. EPCs were treated with high concentrations of glucose, H2S, Baf-A1, 3-MA or rapamycin. Cell proliferation, cell migration and tube formation were measured using cell counting kit-8, Transwell migration and tube formation assays, respectively. Cellular autophagy flux was detected by RFP-GFP-LC3, and Western blotting was used to examine the protein expression levels of LC3B, P62, and phosphorylated endothelial nitric oxide synthase (eNOS) at Thr495 (p-eNOSThr495). Reactive oxygen species (ROS) levels were measured using a DHE probe. H2S and rapamycin significantly reversed the inhibitory effects of HG on the proliferation, migration, and tube formation of EPCs. Moreover, H2S and rapamycin led to an increase in the number of autophagosomes accompanied by a failure in lysosomal turnover of LC3-II or p62 and p-eNOSThr495 expression and ROS production under the HG condition. However, Baf-A1 and 3-MA reversed the effects of H2S on cell behavior. Collectively, exogenous H2S ameliorated HG-induced EPC dysfunction by promoting autophagic flux and decreasing ROS production by phosphorylating eNOSThr495.
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Affiliation(s)
- Wenxue Ma
- Department of Cardiology, Huadu District People’s Hospital, Southern Medical University, Guangzhou, China
| | - Tingting Zhong
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
| | - Junqiu Chen
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
| | - Xiao Ke
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
| | - Huihua Zuo
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
| | - Qiang Liu
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
- Department of Cardiology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
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Tarnawski AS, Ahluwalia A. The Critical Role of Growth Factors in Gastric Ulcer Healing: The Cellular and Molecular Mechanisms and Potential Clinical Implications. Cells 2021; 10:cells10081964. [PMID: 34440733 PMCID: PMC8392882 DOI: 10.3390/cells10081964] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/25/2021] [Accepted: 07/29/2021] [Indexed: 02/06/2023] Open
Abstract
In this article we review the cellular and molecular mechanisms of gastric ulcer healing. A gastric ulcer (GU) is a deep defect in the gastric wall penetrating through the entire mucosa and the muscularis mucosae. GU healing is a regeneration process that encompasses cell dedifferentiation, proliferation, migration, re-epithelialization, formation of granulation tissue, angiogenesis, vasculogenesis, interactions between various cells and the matrix, and tissue remodeling, all resulting in scar formation. All these events are controlled by cytokines and growth factors (e.g., EGF, TGFα, IGF-1, HGF, bFGF, TGFβ, NGF, VEGF, angiopoietins) and transcription factors activated by tissue injury. These growth factors bind to their receptors and trigger cell proliferation, migration, and survival pathways through Ras, MAPK, PI3K/Akt, PLC-γ, and Rho/Rac/actin signaling. The triggers for the activation of these growth factors are tissue injury and hypoxia. EGF, its receptor, IGF-1, HGF, and COX-2 are important for epithelial cell proliferation, migration, re-epithelialization, and gastric gland reconstruction. VEGF, angiopoietins, bFGF, and NGF are crucial for blood vessel regeneration in GU scars. The serum response factor (SRF) is essential for VEGF-induced angiogenesis, re-epithelialization, and blood vessel and muscle restoration. Local therapy with cDNA of human recombinant VEGF165 in combination with angiopoietin1, or with the NGF protein, dramatically accelerates GU healing and improves the quality of mucosal restoration within ulcer scars. The future directions for accelerating and improving healing include local gene and protein therapies with growth factors, their combinations, and the use of stem cells and tissue engineering.
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Affiliation(s)
- Andrzej S. Tarnawski
- Medical Research Service, VA Long Beach Healthcare System Long Beach, 5901 East Seventh Street, Long Beach, CA 90822, USA
- Division of Gastroenterology, Department of Medicine and Digestive Health Institute, The University of California-Irvine, Irvine, CA 92697, USA
- Correspondence: (A.S.T.); (A.A.); Tel.: +1-(562)-826-5813 (A.A.); Fax: +1-(562)-826-5675 (A.A.)
| | - Amrita Ahluwalia
- Medical Research Service, VA Long Beach Healthcare System Long Beach, 5901 East Seventh Street, Long Beach, CA 90822, USA
- Correspondence: (A.S.T.); (A.A.); Tel.: +1-(562)-826-5813 (A.A.); Fax: +1-(562)-826-5675 (A.A.)
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Jiang LL, Liu L. Effect of metformin on stem cells: Molecular mechanism and clinical prospect. World J Stem Cells 2020; 12:1455-1473. [PMID: 33505595 PMCID: PMC7789120 DOI: 10.4252/wjsc.v12.i12.1455] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/28/2020] [Accepted: 10/26/2020] [Indexed: 02/06/2023] Open
Abstract
Metformin is a first-line medication for type II diabetes. Numerous studies have shown that metformin not only has hypoglycemic effects, but also modulates many physiological and pathological processes ranging from aging and cancer to fracture healing. During these different physiological activities and pathological changes, stem cells usually play a core role. Thus, many studies have investigated the effects of metformin on stem cells. Metformin affects cell differentiation and has promising applications in stem cell medicine. It exerts anti-aging effects and can be applied to gerontology and regenerative medicine. The potential anti-cancer stem cell effect of metformin indicates that it can be an adjuvant therapy for cancers. Furthermore, metformin has beneficial effects against many other diseases including cardiovascular and autoimmune diseases. In this review, we summarize the effects of metformin on stem cells and provide an overview of its molecular mechanisms and clinical prospects.
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Affiliation(s)
- Lin-Li Jiang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Lei Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
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11
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Hosseini-Asl SK, Mehrabani D, Karimi-Busheri F. Therapeutic Effect of Mesenchymal Stem Cells in Ulcerative Colitis: A Review on Achievements and Challenges. J Clin Med 2020; 9:E3922. [PMID: 33287220 PMCID: PMC7761671 DOI: 10.3390/jcm9123922] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023] Open
Abstract
The worldwide epidemiology of inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), still shows an increasing trend in Asia and Iran. Despite an improvement in the treatment landscape focused on symptomatic control, long-term colectomies have not decreased over the last 10-year period. Thus, novel therapies are urgently needed in clinics to supplement the existing treatments. Mesenchymal stem cells (MSCs) are multipotent adult stem cells with immunosuppressive effects, targeting IBD as a new treatment strategy. They have recently received global attention for their use in cell transplantation due to their easy expansion and wide range of activities to be engrafted, and because they are home to the mucosa of the intestine. Moreover, MSCs are able to differentiate into epithelial and other cells that can directly promote repair in the mucosal damages in UC. It seems that there is a need to deepen our understanding to target MSCs as a promising treatment option for UC patients who are refractory to conventional therapies. Here, we overviewed the therapeutic effects of MSCs in UC and discussed the achievements and challenges in the cell transplantation of UC.
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Affiliation(s)
- Seyed-Kazem Hosseini-Asl
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
| | - Davood Mehrabani
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71987-74731, Iran
- Comparative and Experimental Medicine Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
| | - Feridoun Karimi-Busheri
- Department of Oncology, Faculty of Medicine, University of Alberta, Edmonton, AB T6G 1Z2, Canada
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12
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Li X, Lan X, Zhao Y, Wang G, Shi G, Li H, Hu Y, Xu X, Zhang B, Ye K, Gu X, Du C, Wang H. SDF-1/CXCR4 axis enhances the immunomodulation of human endometrial regenerative cells in alleviating experimental colitis. Stem Cell Res Ther 2019; 10:204. [PMID: 31286993 PMCID: PMC6615145 DOI: 10.1186/s13287-019-1298-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 04/25/2019] [Accepted: 06/07/2019] [Indexed: 12/19/2022] Open
Abstract
Endometrial regenerative cells (ERCs) are a new type of mesenchymal-like stromal cells, and their therapeutic potential has been tested in a variety of disease models. SDF-1/CXCR4 axis plays a chemotaxis role in stem/stromal cell migration. The aim of the present study was to investigate the role of SDF-1/CXCR4 axis in the immunomodulation of ERCs on the experimental colitis. The immunomodulation of ERCs in the presence or absence of pretreatment of SDF-1 or AMD3100 was examined in both in vitro cell culture system and dextran sulphate sodium-induced colitis in mice. The results showed that SDF-1 increased the expression of CXCR4 on the surface of ERCs. As compared with normal ERCs, the SDF-1-treated, CXCR4 high-expressing ERCs more significantly suppressed dendritic cell population as well as stimulated both type 2 macrophages and regulatory T cells in vitro and in vivo. Meanwhile, SDF-1-pretreated ERCs increased the generation of anti-inflammatory factors (e.g., IL-4, IL-10) and decreased the pro-inflammatory factors (e.g., IL-6, TNF-α). In addition, SDF-1-pretreated CM-Dil-labeled ERCs were found to engraft to injured colon. Our results may suggest that an SDF-1-induced high level of CXCR4 expression enhances the immunomodulation of ERCs in alleviating experimental colitis in mice.
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Affiliation(s)
- Xiang Li
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Xu Lan
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China.,Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yiming Zhao
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Grace Wang
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ganggang Shi
- Department of Colorectal Surgery, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Hongyue Li
- Tianjin General Surgery Institute, Tianjin, China
| | - Yonghao Hu
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Xiaoxi Xu
- Department of Endocrinology, Tianjin Medical University General Hospital, Tianjin, China
| | - Baoren Zhang
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Kui Ye
- Department of Vascular Surgery, Tianjin Fourth Central Hospital, Tianjin, China
| | - Xiangying Gu
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Caigan Du
- Department of Urologic Sciences, The University of British Columbia, Vancouver, British Columbia, Canada.,Immunity and Infection Research Centre, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
| | - Hao Wang
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China. .,Tianjin General Surgery Institute, Tianjin, China.
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13
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Zhang Y, Deng H, Tang Z. Efficacy of Cellular Therapy for Diabetic Foot Ulcer: A Meta-Analysis of Randomized Controlled Clinical Trials. Cell Transplant 2018; 26:1931-1939. [PMID: 29390881 PMCID: PMC5802633 DOI: 10.1177/0963689717738013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Diabetes mellitus is a widely spread chronic disease with growing incidence worldwide, and diabetic foot ulcer is one of the most serious complications of diabetes. Cellular therapy has shown promise in the management of diabetic foot ulcer in many preclinical experiments and clinical researches. Here, we performed a meta-analysis to evaluate the efficacy and safety of cellular therapy in the management of diabetic foot ulcer. We systematically searched PubMed, MEDLINE, EMBASE, and Cochrane Library databases from inception to May 2017 for randomized controlled trials assessing the efficacy of cellular therapy in diabetic foot ulcer, and a meta-analysis was conducted. A total of 6 randomized controlled clinical trials involving 241 individuals were included in this meta-analysis. The results suggested that cellular therapy could help accelerating the healing of diabetic foot ulcer, presented as higher ankle-brachial index (mean difference = 0.17, 95% confidence interval [CI] = 0.11 to 0.23), higher transcutaneous oxygen pressure (standardized mean difference [SMD] = 1.43; 95% CI, 1.09– to 1.78), higher ulcer healing rate (relative risk [RR] = 1.78; 95% CI, 1.41 to 2.25), higher amputation-free survival (RR = 1.25; 95% CI, 1.11 to 1.40), and lower scale of pain (SMD = −1.69; 95% CI, −2.05 to −1.33). Furthermore, cellular therapy seemed to be safe, with no serious complications and low risk of short-term slight complications. Cellular therapy could accelerate the rate of diabetic foot ulcer healing and may be more efficient than standard therapy for diabetic foot treatment.
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Affiliation(s)
- Ye Zhang
- 1 Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hong Deng
- 1 Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhouping Tang
- 1 Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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14
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Fricker M, Goggins BJ, Mateer S, Jones B, Kim RY, Gellatly SL, Jarnicki AG, Powell N, Oliver BG, Radford-Smith G, Talley NJ, Walker MM, Keely S, Hansbro PM. Chronic cigarette smoke exposure induces systemic hypoxia that drives intestinal dysfunction. JCI Insight 2018; 3:94040. [PMID: 29415878 PMCID: PMC5821186 DOI: 10.1172/jci.insight.94040] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 01/10/2018] [Indexed: 01/05/2023] Open
Abstract
Crohn's disease (CD) is a chronic inflammatory disease of the gastrointestinal tract (GIT). Cigarette smoke (CS) exposure and chronic obstructive pulmonary disease (COPD) are risk factors for CD, although the mechanisms involved are poorly understood. We employed a mouse model of CS-induced experimental COPD and clinical studies to examine these mechanisms. Concurrent with the development of pulmonary pathology and impaired gas exchange, CS-exposed mice developed CD-associated pathology in the colon and ileum, including gut mucosal tissue hypoxia, HIF-2 stabilization, inflammation, increased microvasculature, epithelial cell turnover, and decreased intestinal barrier function. Subsequent smoking cessation reduced GIT pathology, particularly in the ileum. Dimethyloxaloylglycine, a pan-prolyl hydroxylase inhibitor, ameliorated CS-induced GIT pathology independently of pulmonary pathology. Prior smoke exposure exacerbated intestinal pathology in 2,4,6-trinitrobenzenesulfonic acid-induced (TNBS-induced) colitis. Circulating vascular endothelial growth factor, a marker of systemic hypoxia, correlated with CS exposure and CD in mice and humans. Increased mucosal vascularisation was evident in ileum biopsies from CD patients who smoke compared with nonsmokers, supporting our preclinical data. We provide strong evidence that chronic CS exposure and, for the first time to our knowledge, associated impaired gas exchange cause systemic and intestinal ischemia, driving angiogenesis and GIT epithelial barrier dysfunction, resulting in increased risk and severity of CD.
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Affiliation(s)
- Michael Fricker
- Priority research Centre for Healthy Lungs, University of Newcastle and
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Bridie J. Goggins
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Sean Mateer
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Bernadette Jones
- Priority research Centre for Healthy Lungs, University of Newcastle and
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Richard Y. Kim
- Priority research Centre for Healthy Lungs, University of Newcastle and
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Shaan L. Gellatly
- Priority research Centre for Healthy Lungs, University of Newcastle and
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Andrew G. Jarnicki
- Priority research Centre for Healthy Lungs, University of Newcastle and
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Nicholas Powell
- Faculty of Translational Medicine, Guy’s and St. Thomas’ and King’s College London Comprehensive Biomedical Research Centre, Great Maze Pond, London, United Kingdom
| | - Brian G. Oliver
- Woolcock Institute of Medical Research, The University of Sydney, Sydney, New South Wales, Australia
- School of Life Sciences, The University of Technology, Sydney, New South Wales, Australia
| | - Graham Radford-Smith
- Royal Brisbane and Women’s Hospital, Brisbane, School of Medicine, University of Queensland, and
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Nicholas J. Talley
- Priority Research Centre for Digestive Health and Neurogastroenterology, University of Newcastle, New South Wales, Australia
| | - Marjorie M. Walker
- Priority Research Centre for Digestive Health and Neurogastroenterology, University of Newcastle, New South Wales, Australia
| | - Simon Keely
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
- Priority Research Centre for Digestive Health and Neurogastroenterology, University of Newcastle, New South Wales, Australia
| | - Philip M. Hansbro
- Priority research Centre for Healthy Lungs, University of Newcastle and
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
- Priority Research Centre for Digestive Health and Neurogastroenterology, University of Newcastle, New South Wales, Australia
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15
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Collignon AM, Lesieur J, Vacher C, Chaussain C, Rochefort GY. Strategies Developed to Induce, Direct, and Potentiate Bone Healing. Front Physiol 2017; 8:927. [PMID: 29184512 PMCID: PMC5694432 DOI: 10.3389/fphys.2017.00927] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 10/31/2017] [Indexed: 12/19/2022] Open
Abstract
Bone exhibits a great ability for endogenous self-healing. Nevertheless, impaired bone regeneration and healing is on the rise due to population aging, increasing incidence of bone trauma and the clinical need for the development of alternative options to autologous bone grafts. Current strategies, including several biomolecules, cellular therapies, biomaterials, and different permutations of these, are now developed to facilitate the vascularization and the engraftment of the constructs, to recreate ultimately a bone tissue with the same properties and characteristics of the native bone. In this review, we browse the existing strategies that are currently developed, using biomolecules, cells and biomaterials, to induce, direct and potentiate bone healing after injury and further discuss the biological processes associated with this repair.
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Affiliation(s)
- Anne-Margaux Collignon
- EA 2496 Orofacial Pathologies, Imaging and Biotherapies, Dental School Faculty, Life Imaging Platform (PIV), University Paris Descartes, Montrouge, France.,Department of Odontology, University Hospitals PNVS, Assistance Publique Hopitaux De Paris, Paris, France
| | - Julie Lesieur
- EA 2496 Orofacial Pathologies, Imaging and Biotherapies, Dental School Faculty, Life Imaging Platform (PIV), University Paris Descartes, Montrouge, France
| | - Christian Vacher
- EA 2496 Orofacial Pathologies, Imaging and Biotherapies, Dental School Faculty, Life Imaging Platform (PIV), University Paris Descartes, Montrouge, France.,Department of Maxillofacial Surgery, Beaujon Hospital, Assistance Publique Hopitaux De Paris, Paris, France
| | - Catherine Chaussain
- EA 2496 Orofacial Pathologies, Imaging and Biotherapies, Dental School Faculty, Life Imaging Platform (PIV), University Paris Descartes, Montrouge, France.,Department of Odontology, University Hospitals PNVS, Assistance Publique Hopitaux De Paris, Paris, France
| | - Gael Y Rochefort
- EA 2496 Orofacial Pathologies, Imaging and Biotherapies, Dental School Faculty, Life Imaging Platform (PIV), University Paris Descartes, Montrouge, France
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16
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Dai X, Zeng J, Yan X, Lin Q, Wang K, Chen J, Shen F, Gu X, Wang Y, Chen J, Pan K, Cai L, Wintergerst KA, Tan Y. Sitagliptin-mediated preservation of endothelial progenitor cell function via augmenting autophagy enhances ischaemic angiogenesis in diabetes. J Cell Mol Med 2017; 22:89-100. [PMID: 28799229 PMCID: PMC5742710 DOI: 10.1111/jcmm.13296] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 05/27/2017] [Indexed: 01/13/2023] Open
Abstract
Recently, the dipeptidyl peptidase‐4 (DPP‐4) inhibitor sitagliptin, a major anti‐hyperglycaemic agent, has received substantial attention as a therapeutic target for cardiovascular diseases via enhancing the number of circulating endothelial progenitor cells (EPCs). However, the direct effects of sitagliptin on EPC function remain elusive. In this study, we evaluated the proangiogenic effects of sitagliptin on a diabetic hind limb ischaemia (HLI) model in vivo and on EPC culture in vitro. Treatment of db/db mice with sitagliptin (Januvia) after HLI surgery efficiently enhanced ischaemic angiogenesis and blood perfusion, which was accompanied by significant increases in circulating EPC numbers. EPCs derived from the bone marrow of normal mice were treated with high glucose to mimic diabetic hyperglycaemia. We found that high glucose treatment induced EPC apoptosis and tube formation impairment, which were significantly prevented by sitagliptin pretreatment. A mechanistic study found that high glucose treatment of EPCs induced dramatic increases in oxidative stress and apoptosis; pretreatment of EPCs with sitagliptin significantly attenuated high glucose‐induced apoptosis, tube formation impairment and oxidative stress. Furthermore, we found that sitagliptin restored the basal autophagy of EPCs that was impaired by high glucose via activating the AMP‐activated protein kinase/unc‐51‐like autophagy activating kinase 1 signalling pathway, although an autophagy inhibitor abolished the protective effects of sitagliptin on EPCs. Altogether, the results indicate that sitagliptin‐induced preservation of EPC angiogenic function results in an improvement of diabetic ischaemia angiogenesis and blood perfusion, which are most likely mediated by sitagliptin‐induced prevention of EPC apoptosis via augmenting autophagy.
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Affiliation(s)
- Xiaozhen Dai
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, School of Nursing at the Wenzhou Medical University, Wenzhou, China.,School of Biomedicine, Chengdu Medical College, Chengdu, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA
| | - Jun Zeng
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA.,Department of Medical Genetics and Cell Biology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Xiaoqing Yan
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, School of Nursing at the Wenzhou Medical University, Wenzhou, China
| | - Qian Lin
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, USA
| | - Kai Wang
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA.,Departments of Pediatrics, Endocrinology and Metabolism, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jing Chen
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA
| | - Feixia Shen
- Departments of Pediatrics, Endocrinology and Metabolism, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xuemei Gu
- Departments of Pediatrics, Endocrinology and Metabolism, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yuehui Wang
- Departments of Geriatrics, the First Hospital of Jilin University, Changchun, China
| | - Jun Chen
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, School of Nursing at the Wenzhou Medical University, Wenzhou, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA
| | - Kejian Pan
- School of Biomedicine, Chengdu Medical College, Chengdu, China
| | - Lu Cai
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, School of Nursing at the Wenzhou Medical University, Wenzhou, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, USA
| | - Kupper A Wintergerst
- Department of Pediatrics, Division of Endocrinology, Wendy L. Novak Diabetes Care Center, University of Louisville, Louisville, KY, USA
| | - Yi Tan
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, School of Nursing at the Wenzhou Medical University, Wenzhou, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, USA.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, USA
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17
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Xiang H, Zhang X, Yang C, Xu W, Ge X, Zhang R, Qiu Y, Sun W, Li F, Xiang T, Chen H, Wang Z, Zeng Q. Autologous bone marrow stem cell transplantation for the treatment of ulcerative colitis complicated with herpes zoster: a case report. Front Med 2016; 10:522-526. [PMID: 27896624 DOI: 10.1007/s11684-016-0485-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 08/17/2016] [Indexed: 12/27/2022]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease with continuous or recurrent symptoms. A 42-year-old male patient with intermittent diarrhea accompanied by bloody mucopurulent stools was admitted to our hospital. The diagnosis of UC was confirmed by a combination of laboratory examination, colonoscopy, and histological assay. The patient developed herpes zoster in the hospital, which challenged traditional treatments. Therefore, we performed an autologous bone marrow cells to modulate the immune system with his permission. Autologous bone marrow mononuclear cells were collected and injected locally into the bowel mucosa, and subsequently injected systemically through a peripheral vein. After the patient underwent auto bone marrow mononuclear cells transplantations twice, the patient's symptoms were alleviated. Furthermore, he recovered from hematochezia, and his hypersensitive C reactive protein decreased. Colonoscopy results showed reduced lesions and decreased areas with bleeding and edema in the sigmoid colon and rectum. No recurrence occurred in the subsequent two years, but long-time monitoring is still necessary for the prophylaxis of colorectal cancer.
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Affiliation(s)
- Hang Xiang
- Institute of Health Management, Institute of Geriatrics, Beijing Key Laboratory of Normal Aging and Geriatrics, Department of Gerontal Gastroenterology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiaomei Zhang
- Institute of Health Management, Institute of Geriatrics, Beijing Key Laboratory of Normal Aging and Geriatrics, Department of Gerontal Gastroenterology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Chao Yang
- Department of Blood Transfusion, Department of Hematology, The General Hospital of the PLA Rocket Force, Beijing, 100088, China
| | - Wenhuan Xu
- Institute of Health Management, Institute of Geriatrics, Beijing Key Laboratory of Normal Aging and Geriatrics, Department of Gerontal Gastroenterology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xin Ge
- Galactophore Department of the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Rong Zhang
- Department of Blood Transfusion, Department of Hematology, The General Hospital of the PLA Rocket Force, Beijing, 100088, China
| | - Ya Qiu
- Institute of Health Management, Institute of Geriatrics, Beijing Key Laboratory of Normal Aging and Geriatrics, Department of Gerontal Gastroenterology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Wanjun Sun
- Department of Blood Transfusion, Department of Hematology, The General Hospital of the PLA Rocket Force, Beijing, 100088, China
| | - Fan Li
- Institute of Health Management, Institute of Geriatrics, Beijing Key Laboratory of Normal Aging and Geriatrics, Department of Gerontal Gastroenterology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Tianyuan Xiang
- Geriatrics Institute of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Haixu Chen
- Institute of Health Management, Institute of Geriatrics, Beijing Key Laboratory of Normal Aging and Geriatrics, Department of Gerontal Gastroenterology, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Zheng Wang
- Department of Biotherapy of PLA 455 Hospital, Shanghai, 200052, China.
| | - Qiang Zeng
- Institute of Health Management, Institute of Geriatrics, Beijing Key Laboratory of Normal Aging and Geriatrics, Department of Gerontal Gastroenterology, Chinese PLA General Hospital, Beijing, 100853, China.
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18
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SDF-1α-induced dual pairs of E-selectin/ligand mediate endothelial progenitor cell homing to critical ischemia. Sci Rep 2016; 6:34416. [PMID: 27713493 PMCID: PMC5054375 DOI: 10.1038/srep34416] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/12/2016] [Indexed: 01/13/2023] Open
Abstract
Homing of endothelial progenitor cells (EPC) to the ischemic tissues is a key event in neovascularization and tissue regeneration. In response to ischemic insult, injured tissues secrete several chemo-cytokines, including stromal cell-derived factor-1α (SDF-1α), which triggers mobilization and homing of bone marrow-derived EPC (BMD-EPC). We previously reported that SDF-1α-induced EPC homing is mediated by a panel of adhesion molecules highly or selectively expressed on the activated endothelium in ischemic tissues, including E-selectin. Elevated E-selectin on wound vasculature serve as docking sites for circulating EPC, which express counterpart E-selectin ligands. Here, we show that SDF-1α presented in wound tissue and released into circulation can act both locally and remotely to induce ischemic tissue endothelium and BMD-EPC to express both E-selectin and its ligands. By performing BM transplantation using E-selectin−/− and E-selectin+/+ mice as the donors and recipients respectively, we demonstrate that upregulated dual E-selectin/ligand pairs reciprocally expressed on ischemic tissue endothelium and BMD-EPC act as double-locks to secure targeted EPC- endothelium interactions by which to facilitate EPC homing and promote neovascularization and tissue repair. These findings describe a novel mechanism for BMD-EPC homing and indicate that dual E-selectin/ligand pairs may be effective targets/tools for therapeutic neovascularization and targeted cell delivery.
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19
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Amato B, Compagna R, Amato M, Butrico L, Fugetto F, Chibireva MD, Barbetta A, Cannistrà M, de Franciscis S, Serra R. The role of adult tissue-derived stem cells in chronic leg ulcers: a systematic review focused on tissue regeneration medicine. Int Wound J 2015; 13:1289-1298. [PMID: 26399452 DOI: 10.1111/iwj.12499] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/10/2015] [Accepted: 08/16/2015] [Indexed: 12/12/2022] Open
Abstract
Wound healing is an articulated process that can be impaired in different steps in chronic wounds. Chronic leg ulcers are a special type of non-healing wounds that represent an important cause of morbidity and public cost in western countries. Because of their common recurrence after conventional managements and increasing prevalence due to an ageing population, newer approaches are needed. Over the last decade, the research has been focused on innovative treatment strategies, including stem-cell-based therapies. After the initial interest in embryonic pluripotent cells, several different types of adult stem cells have been studied because of ethical issues. Specific types of adult stem cells have shown a high potentiality in tissue healing, in both in vitro and in vivo studies. Aim of this review is to clearly report the newest insights on tissue regeneration medicine, with particular regard for chronic leg ulcers.
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Affiliation(s)
- Bruno Amato
- Interuniversity Center of Phlebolymphology (CIFL). International Research and Educational Program in Clinical and Experimental Biotechnology, Headquarters, University Magna Graecia of Catanzaro, Catanzaro, Italy.,Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Rita Compagna
- Interuniversity Center of Phlebolymphology (CIFL). International Research and Educational Program in Clinical and Experimental Biotechnology, Headquarters, University Magna Graecia of Catanzaro, Catanzaro, Italy.,Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Maurizio Amato
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Lucia Butrico
- Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
| | - Francesco Fugetto
- School of Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Mariia D Chibireva
- School of Medicine, Kazan State Medical University, Kazan, Tatarstan Republic, Russian Federation
| | - Andrea Barbetta
- Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
| | - Marco Cannistrà
- Department of Surgery, Annunziata Hospital of Cosenza, Cosenza, Italy
| | - Stefano de Franciscis
- Interuniversity Center of Phlebolymphology (CIFL). International Research and Educational Program in Clinical and Experimental Biotechnology, Headquarters, University Magna Graecia of Catanzaro, Catanzaro, Italy.,Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
| | - Raffaele Serra
- Interuniversity Center of Phlebolymphology (CIFL). International Research and Educational Program in Clinical and Experimental Biotechnology, Headquarters, University Magna Graecia of Catanzaro, Catanzaro, Italy.,Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
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20
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El-Gowelli HM, Saad EI, Abdel-Galil AGA, Ibrahim ER. Co-administration of α-lipoic acid and cyclosporine aggravates colon ulceration of acetic acid-induced ulcerative colitis via facilitation of NO/COX-2/miR-210 cascade. Toxicol Appl Pharmacol 2015; 288:300-12. [PMID: 26276312 DOI: 10.1016/j.taap.2015.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/22/2015] [Accepted: 08/05/2015] [Indexed: 02/07/2023]
Abstract
In this work, α-lipoic acid and cyclosporine demonstrated significant protection against acetic acid-induced ulcerative colitis in rats. We proposed that α-lipoic acid and cyclosporine co-administration might modulate their individual effects. Induction of ulcerative colitis in rats was performed by intra-rectal acetic acid (5% v/v) administration for 3 consecutive days. Effects of individual or combined used of α-lipoic acid (35 mg/kg ip) or cyclosporine (5mg/kg sc) for 6 days starting 2 days prior to acetic acid were assessed. Acetic acid caused colon ulceration, bloody diarrhea and weight loss. Histologically, there was mucosal atrophy and inflammatory cells infiltration in submucosa, associated with depletion of colon reduced glutathione, superoxide dismutase and catalase activities and elevated colon malondialdehyde, serum C-reactive protein (C-RP) and tumor necrosis factor-α (TNF-α). Colon gene expression of cyclooxygenase-2 and miR-210 was also elevated. These devastating effects of acetic acid were abolished upon concurrent administration of α-lipoic acid. Alternatively, cyclosporine caused partial protection against acetic acid-induced ulcerative colitis. Cyclosporine did not restore colon reduced glutathione, catalase activity, serum C-RP or TNF-α. Unexpectedly, co-administration of α-lipoic acid and cyclosporine aggravated colon ulceration. Concomitant use of α-lipoic acid and cyclosporine significantly increased nitric oxide production, cyclooxygenase-2 and miR-210 gene expression compared to all other studied groups. The current findings suggest that facilitation of nitric oxide/cyclooxygenase-2/miR-210 cascade constitutes, at least partially, the cellular mechanism by which concurrent use of α-lipoic acid and cyclosporine aggravates colon damage. Collectively, the present work highlights the probable risk of using α-lipoic acid/cyclosporine combination in ulcerative colitis patients.
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Affiliation(s)
- Hanan M El-Gowelli
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Egypt.
| | - Evan I Saad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Egypt
| | | | - Einas R Ibrahim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Egypt
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Matusiak Ł, Batycka-Baran A, Bieniek A, Szepietowski JC. Decreased Number of Circulating Endothelial Progenitor Cells in Hidradenitis Suppurativa Patients. Dermatology 2015; 230:228-33. [DOI: 10.1159/000371877] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/04/2015] [Indexed: 11/19/2022] Open
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22
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Talapka P, Nagy LI, Pál A, Poles MZ, Berkó A, Bagyánszki M, Puskás LG, Fekete &E, Bódi N. Alleviated mucosal and neuronal damage in a rat model of Crohn’s disease. World J Gastroenterol 2014; 20:16690-16697. [PMID: 25469038 PMCID: PMC4248213 DOI: 10.3748/wjg.v20.i44.16690] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/27/2014] [Accepted: 07/22/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To establish a rat model suitable to investigate the repetitive relapsing inflammations (RRI) characteristic to Crohn’s disease.
METHODS: Colitis was induced by 2,4,6-trinitrobenzenesulfonic acid (TNBS). RRI were mimicked by repeating administrations of TNBS. Tissue samples were taken from control, once, twice and three times treated rats from the inflamed and adjacent non-inflamed colonic segments at different timepoints during the acute intestinal inflammation. The means of the ulcerated area were measured to evaluate the macroscopic mucosal damage. The density of myenteric neurons was determined on whole mounts by HuC/HuD immunohistochemistry. Heme oxygenase-1 (HO-1) expression was evaluated by molecular biological techniques.
RESULTS: TNBS-treated rats displayed severe colitis, but the mortality was negligible, and an increase of body weight was characteristic throughout the experimental period. The widespread loss of myenteric neurons, and marked but transient HO-1 up-regulation were demonstrated after the first TNBS administration. After repeated doses the length of the recovery time and extent of the ulcerous colonic segments were markedly decreased, and the neuronal loss was on a smaller scale and was limited to the inflamed area. HO-1 mRNA level was notably greater than after a single dose and overexpression was sustained throughout the timepoints examined. Nevertheless, the HO-1 protein up-regulation after the second TNBS treatment proved to be transient. Following the third treatment HO-1 protein expression could not be detected.
CONCLUSION: Experimentally provoked RRI may exert a protective preconditioning effect against the mucosal and neuronal damage. The persistent up-regulation of HO-1 mRNA expression may correlate with this.
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Almeida-Porada G, Soland M, Boura J, Porada CD. Regenerative medicine: prospects for the treatment of inflammatory bowel disease. Regen Med 2014; 8:631-44. [PMID: 23998755 DOI: 10.2217/rme.13.52] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
This article reviews the current understanding of the processes driving the development and progression of inflammatory bowel disease (IBD), discusses how the dynamic crosstalk between resident microorganisms, host cells and the immune system is required in order to maintain immune homeostasis, and considers innovative strategies that allow the modification or modulation of the intestinal microorganismal community as a potential approach for treating IBD. This article next rationalizes the use of cell-based regenerative medicine as treatment for IBD, discusses the obstacles hindering its success, summarizes some of the results of recent clinical trials employing these therapies, and discusses ongoing work to enhance mesenchymal stem/stromal cells, making them better suited to the task of repairing the damage within the IBD gut.
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Affiliation(s)
- Graça Almeida-Porada
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157-1083, USA.
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Piscaglia AC. Intestinal stem cells and celiac disease. World J Stem Cells 2014; 6:213-229. [PMID: 24772248 PMCID: PMC3999779 DOI: 10.4252/wjsc.v6.i2.213] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/07/2014] [Accepted: 03/12/2014] [Indexed: 02/06/2023] Open
Abstract
Stem cells (SCs) are the key to tissue genesis and regeneration. Given their central role in homeostasis, dysfunctions of the SC compartment play a pivotal role in the development of cancers, degenerative disorders, chronic inflammatory pathologies and organ failure. The gastrointestinal tract is constantly exposed to harsh mechanical and chemical conditions and most of the epithelial cells are replaced every 3 to 5 d. According to the so-called Unitarian hypothesis, this renewal is driven by a common intestinal stem cell (ISC) residing within the crypt base at the origin of the crypt-to-villus hierarchical migratory pattern. Celiac disease (CD) can be defined as a chronic immune-mediated disease that is triggered and maintained by dietary proteins (gluten) in genetically predisposed individuals. Many advances have been achieved over the last years in understanding of the pathogenic interactions among genetic, immunological and environmental factors in CD, with a particular emphasis on intestinal barrier and gut microbiota. Conversely, little is known about ISC modulation and deregulation in active celiac disease and upon a gluten-free diet. Nonetheless, bone marrow-derived SC transplantation has become an option for celiac patients with complicated or refractory disease. This manuscript summarizes the “state of the art” regarding CD and ISCs, their niche and potential role in the development and treatment of the disease.
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Keswani SG, Balaji S, Le LD, Leung A, Parvadia JK, Frischer J, Yamano S, Taichman N, Crombleholme TM. Role of salivary vascular endothelial growth factor (VEGF) in palatal mucosal wound healing. Wound Repair Regen 2013; 21:554-62. [PMID: 23758212 DOI: 10.1111/wrr.12065] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 04/30/2013] [Indexed: 12/27/2022]
Abstract
The mucosa of alimentary tract heals more rapidly than cutaneous wounds. The underlying mechanisms of this enhanced healing have not been completely elucidated. Constant exposure to salivary growth factors has been shown to play a critical role in mucosal homeostasis and tissue repair. Angiogenesis also has an essential role in successful wound repair. One of the main angiogenic growth factors, vascular endothelial growth factor (VEGF), has a pleiotropic role in tissue repair via neovascularization, reepithelialization, and regulation of extracellular matrix. We have previously reported a critical role for salivary VEGF in bowel adaptation after small bowel resection. We hypothesize that salivary VEGF is an essential stimulus for oral mucosal tissue repair, and use the murine palatal wound model to test our hypothesis. In a loss-of-function experiment, we removed the primary source of VEGF production through selective submandibular gland (SMG) sialoadenectomy in a murine model and observed the effects on wound closure and neovascularization. We then performed a selective loss-of-function experiment using the protein VEGF-Trap to inhibit salivary VEGF. In a gain-of-function experiment, we supplemented oral VEGF following SMG sialoadenectomy. After SMG sialoadenectomy, there was significant reduction in salivary VEGF level, wound closure, and vessel density. Lower levels of salivary VEGF were correlated with impaired neovascularization and reepithelialization. The selective blockade of VEGF using VEGF-Trap resulted in a similar impairment in wound healing and neovascularization. The sole supplementation of oral VEGF after SMG sialoadenectomy rescued the impaired wound healing phenotype and restored neovascularization to normal levels. These data show a novel role for salivary-VEGF in mucosal wound healing, and provide a basis for the development of novel therapeutics aimed at augmenting wound repair of the oral mucosa, as well as wounds at other sites in the alimentary tract.
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Affiliation(s)
- Sundeep G Keswani
- Center for Molecular Fetal Therapy, Division of Pediatric General, Thoracic, and Fetal Surgery, Cincinnati Children's Hospital Medical Center and The University of Cincinnati College of Medicine, Cincinnati, Ohio 45229-3039, USA.
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Stem cell therapy for lower extremity diabetic ulcers: where do we stand? BIOMED RESEARCH INTERNATIONAL 2013; 2013:462179. [PMID: 23586040 PMCID: PMC3613085 DOI: 10.1155/2013/462179] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 02/03/2013] [Accepted: 02/04/2013] [Indexed: 12/17/2022]
Abstract
The impairment of wound healing in diabetic patients is an important clinical problem affecting millions of patients worldwide. Various clinical and basic science studies show that stem cell therapy, as a regenerative medical therapy, can be a good solution. In this paper, we begin with an introduction of the cellular mechanism of the diabetic ulcer. We will then discuss the advantages and limitations of various stem cell therapies that have been under extensive recent study.
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Koon HW, Ho S, Cheng M, Ichikawa R, Pothoulakis C. Differentiating functional roles of gene expression from immune and non-immune cells in mouse colitis by bone marrow transplantation. J Vis Exp 2012:e4208. [PMID: 23052552 DOI: 10.3791/4208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
To understand the role of a gene in the development of colitis, we compared the responses of wild-type mice and gene-of-interest deficient knockout mice to colitis. If the gene-of-interest is expressed in both bone marrow derived cells and non-bone marrow derived cells of the host; however, it is possible to differentiate the role of a gene of interest in bone marrow derived cells and non- bone marrow derived cells by bone marrow transplantation technique. To change the bone marrow derived cell genotype of mice, the original bone marrow of recipient mice were destroyed by irradiation and then replaced by new donor bone marrow of different genotype. When wild-type mice donor bone marrow was transplanted to knockout mice, we could generate knockout mice with wild-type gene expression in bone marrow derived cells. Alternatively, when knockout mice donor bone marrow was transplanted to wild-type recipient mice, wild-type mice without gene-of-interest expressing from bone marrow derived cells were produced. However, bone marrow transplantation may not be 100% complete. Therefore, we utilized cluster of differentiation (CD) molecules (CD45.1 and CD45.2) as markers of donor and recipient cells to track the proportion of donor bone marrow derived cells in recipient mice and success of bone marrow transplantation. Wild-type mice with CD45.1 genotype and knockout mice with CD45.2 genotype were used. After irradiation of recipient mice, the donor bone marrow cells of different genotypes were infused into the recipient mice. When the new bone marrow regenerated to take over its immunity, the mice were challenged by chemical agent (dextran sodium sulfate, DSS 5%) to induce colitis. Here we also showed the method to induce colitis in mice and evaluate the role of the gene of interest expressed from bone-marrow derived cells. If the gene-of-interest from the bone derived cells plays an important role in the development of the disease (such as colitis), the phenotype of the recipient mice with bone marrow transplantation can be significantly altered. At the end of colitis experiments, the bone marrow derived cells in blood and bone marrow were labeled with antibodies against CD45.1 and CD45.2 and their quantitative ratio of existence could be used to evaluate the success of bone marrow transplantation by flow cytometry. Successful bone marrow transplantation should show a vast majority of donor genotype (in term of CD molecule marker) over recipient genotype in both the bone marrow and blood of recipient mice.
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Affiliation(s)
- Hon Wai Koon
- Center for Inflammatory Bowel Diseases, Division of Digestive Diseases, David Geffen School of Medicine, The University of California Los Angeles, Los Angeles, CA, USA
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Wood JA, Colletti E, Mead LE, Ingram D, Porada CD, Zanjani ED, Yoder MC, Almeida-Porada G. Distinct contribution of human cord blood-derived endothelial colony forming cells to liver and gut in a fetal sheep model. Hepatology 2012; 56:1086-96. [PMID: 22488442 PMCID: PMC3396735 DOI: 10.1002/hep.25753] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 03/23/2012] [Indexed: 12/22/2022]
Abstract
UNLABELLED Although the vasculogenic potential of circulating and cord blood (CB)-derived endothelial colony-forming cells (ECFC) has been demonstrated in vitro and in vivo, little is known about the inherent biologic ability of these cells to home to different organs and contribute to tissue-specific cell populations. Here we used a fetal sheep model of in utero transplantation to investigate and compare the intrinsic ability of human CB-derived ECFC to migrate to the liver and to the intestine, and to define ECFC's intrinsic ability to integrate and contribute to the cytoarchitecture of these same organs. ECFCs were transplanted by an intraperitoneal or intrahepatic route (IH) into fetal sheep at concentrations ranging from 1.1-2.6 × 10(6) cells/fetus. Recipients were evaluated at 85 days posttransplant for donor (human) cells using flow cytometry and confocal microscopy. We found that, regardless of the route of injection, and despite the IH delivery of ECFC, the overall liver engraftment was low, but a significant percentage of cells were located in the perivascular regions and retained the expression of hallmark endothelial makers. By contrast, ECFC migrated preferentially to the intestinal crypt region and contributed significantly to the myofibroblast population. Furthermore, ECFC expressing CD133 and CD117 lodged in areas where endogenous cells expressed those same phenotypes. CONCLUSION ECFC inherently constitute a potential source of cells for the treatment of intestinal diseases, but strategies to increase the numbers of ECFC persisting within the hepatic parenchyma are needed in order to enhance ECFC therapeutic potential for this organ.
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Affiliation(s)
- Joshua A. Wood
- Dept. of Animal Biotechnology, University of Nevada, Reno, USA
| | - Evan Colletti
- Dept. of Animal Biotechnology, University of Nevada, Reno, USA
| | - Laura E. Mead
- Dept. of Pediatrics and Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, USA
| | - David Ingram
- Dept. of Pediatrics and Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, USA
| | | | | | - Mervin C. Yoder
- Dept. of Pediatrics and Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, USA
,Corresponding Authors: Graça Almeida-Porada, M.D., Ph.D., Wake Forest Institute for Regenerative Medicine, 391 Technology Way, Winston-Salem, NC 27157-1083 USA. Phone: (336) 713-1630; FAX: (336) 713-7290 Mervin C. Yoder, M.D. Department of Pediatrics, Herman B Wells Center for Pediatric Research Indiana University School of Medicine, Indianapolis, Ind., USA Phone: (317) 274-4738; FAX: (317) 274-8679
| | - Graça Almeida-Porada
- Dept. of Animal Biotechnology, University of Nevada, Reno, USA
,Corresponding Authors: Graça Almeida-Porada, M.D., Ph.D., Wake Forest Institute for Regenerative Medicine, 391 Technology Way, Winston-Salem, NC 27157-1083 USA. Phone: (336) 713-1630; FAX: (336) 713-7290 Mervin C. Yoder, M.D. Department of Pediatrics, Herman B Wells Center for Pediatric Research Indiana University School of Medicine, Indianapolis, Ind., USA Phone: (317) 274-4738; FAX: (317) 274-8679
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