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Wu M, Li C, Zhou X, Wu Z, Feng J, Guo X, Fang R, Lian Q, Pan M, Lai X, Peng Y. Wogonin preconditioning of MSCs improved their therapeutic efficiency for colitis through promoting glycolysis. Inflammopharmacology 2024; 32:2575-2587. [PMID: 38753221 DOI: 10.1007/s10787-024-01491-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/07/2024] [Indexed: 08/06/2024]
Abstract
Inflammatory bowel diseases (IBDs) are prevalent and debilitating diseases with limited clinical treatment strategies. Mesenchymal stem cell (MSCs) are pluripotent stem cells with self-renewal capability and multiple immunomodulatory effects, which make them a promising therapeutic approach for IBDs. Thus, optimization of MSCs regimes is crucial for their further clinical application. Wogonin, a flavonoid-like compound with extensive immunomodulatory and adjuvant effects, has been investigated as a potential pretreatment for MSCs in IBD treatment. In this study, we employed the DSS-induced acute colitis mouse model to compare the therapeutic effectiveness of MSCs in pretreated with or without wogonin and further explore the underlying mechanism. Compared to untreated MSCs, MSCwogonin (pretreated with wogonin) showed greater effectiveness in the treatment of colitis. Further experiments revealed that wogonin treatment activated the AKT signaling pathway, resulting in higher cellular glycolysis. Inhibition of AKT phosphorylation by perifosine not only decreased glycolysis but impaired the therapeutic efficiency of MSCwogonin. Consistent with these results, qPCR data indicated that wogonin treatment induced the expression of immunomodulatory molecules IL-10, IDO, and AGR1, which were reduced by perifosine. Together, our data demonstrated that wogonin preconditioning strategy further augmented the therapeutic efficacy of MSCs via promoting glycolysis, which should be a promising strategy for optimizing MSCs therapy in IBDs.
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Affiliation(s)
- Mengye Wu
- The Biotherapy Center, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Cuiping Li
- The Biotherapy Center, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Xue Zhou
- Department of Ultrasonic Medicine, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, Guangdong, China
| | - Zhiyong Wu
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Jianqi Feng
- Center for Stem Cells Translational Medicine, Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, 518067, Guangdong, China
| | - Xiaolu Guo
- Center for Stem Cells Translational Medicine, Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, 518067, Guangdong, China
| | - Rui Fang
- Center for Stem Cells Translational Medicine, Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, 518067, Guangdong, China
| | - Qinghai Lian
- Cell-Gene Therapy Translational Medicine Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Ming Pan
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Xiaorong Lai
- Department of Tumor Internal Medicine, Guangdong General Hospital Welfare Branch, Guangdong Academy of Medical Sciences, Guangzhou, 518067, Guangdong, China
| | - Yanwen Peng
- The Biotherapy Center, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China.
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Qi LL, Fan ZY, Mao HG, Wang JB. The Therapeutic Efficacy of Adipose Tissue-Derived Mesenchymal Stem Cell Conditioned Medium on Experimental Colitis Was Improved by the Serum From Colitis Rats. Front Bioeng Biotechnol 2021; 9:694908. [PMID: 34604183 PMCID: PMC8484792 DOI: 10.3389/fbioe.2021.694908] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 09/06/2021] [Indexed: 01/07/2023] Open
Abstract
Adipose derived mesenchymal stem cells (AD-MSCs) have shown therapeutic potential in treatments of inflammatory bowel disease (IBD). Due to the harsh host environment and poor survival of the cells, controversy concerning the homing, proliferation and differentiation of MSCs in lesion tissue still remains. It has been reported that conditioned media from MSCs could improve the colitis, whereas the therapeutic efficiency could be significantly elevated by the stimulation of pro-cytokines. In this study, we pre-treated the adipose derived MSCs with the serum from colitis rats and then the activated conditioned media (CM-AcMSC) were collected. To compare the therapeutic effects of CM-MSC and CM-AcMSC on IBD, we constructed dextran sodium sulphate (DSS)-induced colitis rat models. The colitis was induced in rats by administrating 5% DSS in drinking water for 10 days, and the disease symptoms were recorded daily. The colon histopathological changes were observed by different staining methods (H&E and PAS). The expression levels of MUC2 and tight junctions (TJs) were determined by RT-qPCR. The levels of inflammatory cytokines were analyzed by ELISA and western blot analysis. Our findings suggested that CM-AcMSC was more effective in ameliorating the clinical features and histological damage scores. Treatment with CM-AcMSC significantly increased the expression of MUC2 and TJs and suppressed the production of pro-inflammatory cytokines in colonic tissues of colitis rats. The inhibitory effects of CM-AcMSC on inflammatory responses of colitis rats were mediated by NF-κB signaling pathway. These results suggested that pre-activation of MSCs with serum from colitis rats could promote the production of paracrine factors and improve the therapeutic effects of conditioned medium on colitis rats.
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Affiliation(s)
- Li-Li Qi
- School of Biological and Chemical Engineering, Ningbo Tech University, Ningbo, China
| | - Zhe-Yu Fan
- School of Biological and Chemical Engineering, Ningbo Tech University, Ningbo, China
| | - Hai-Guang Mao
- School of Biological and Chemical Engineering, Ningbo Tech University, Ningbo, China
| | - Jin-Bo Wang
- School of Biological and Chemical Engineering, Ningbo Tech University, Ningbo, China
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3
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Yang X, Meng Y, Han Z, Ye F, Wei L, Zong C. Mesenchymal stem cell therapy for liver disease: full of chances and challenges. Cell Biosci 2020; 10:123. [PMID: 33117520 PMCID: PMC7590738 DOI: 10.1186/s13578-020-00480-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 10/06/2020] [Indexed: 12/13/2022] Open
Abstract
Liver disease is a major health problem that endangers human health worldwide. Currently, whole organ allograft transplantation is the gold standard for the treatment of end-stage liver disease. A shortage of suitable organs, high costs and surgical complications limit the application of liver transplantation. Mesenchymal stem cell therapy has been considered as a promising alternative approach for end-stage liver disease. Some clinical trials have confirmed the effectiveness of MSC therapy for liver disease, but its application has not been promoted and approved. There are still many issues that should be solved prior to using MSC therapy in clinical applications. The types of liver disease that are most suitable for MSC application should be determined, and the preparation and engraftment of MSCs should be standardized. These may be bottlenecks that limit the use of MSCs. We investigated 22 completed and several ongoing clinical trials to discuss these questions from a clinical perspective. We also discussed the important mechanisms by which MSCs play a therapeutic role in liver disease. Finally, we also proposed novel prospective approaches that can improve the therapeutic effect of MSCs.
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Affiliation(s)
- Xue Yang
- Tumor Immunology and Gene Therapy Center, Shanghai Eastern Hepatobiliary Surgery Hospital, 225 Changhai Road, Shanghai, 200438 China
| | - Yan Meng
- Tumor Immunology and Gene Therapy Center, Shanghai Eastern Hepatobiliary Surgery Hospital, 225 Changhai Road, Shanghai, 200438 China
| | - Zhipeng Han
- Tumor Immunology and Gene Therapy Center, Shanghai Eastern Hepatobiliary Surgery Hospital, 225 Changhai Road, Shanghai, 200438 China
| | - Fei Ye
- Tumor Immunology and Gene Therapy Center, Shanghai Eastern Hepatobiliary Surgery Hospital, 225 Changhai Road, Shanghai, 200438 China
| | - Lixin Wei
- Tumor Immunology and Gene Therapy Center, Shanghai Eastern Hepatobiliary Surgery Hospital, 225 Changhai Road, Shanghai, 200438 China
| | - Chen Zong
- Tumor Immunology and Gene Therapy Center, Shanghai Eastern Hepatobiliary Surgery Hospital, 225 Changhai Road, Shanghai, 200438 China
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4
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Zhang X, Wang S, Ding X, Guo J, Tian Z. Potential methods for improving the efficacy of mesenchymal stem cells in the treatment of inflammatory bowel diseases. Scand J Immunol 2020; 92:e12897. [PMID: 32443180 DOI: 10.1111/sji.12897] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 12/16/2022]
Abstract
Inflammatory bowel diseases (IBD) are a group of chronic recurrent gastrointestinal inflammatory diseases, including ulcerative colitis (UC), Crohn's disease (CD) and IBD unclassified. The pathogenesis may be related to the mucosal immune dysfunction in genetically susceptible hosts affected by environmental factors. Current therapeutic agents mainly include aminosalicylates, corticosteroids, immunosuppressive drugs and novel biological agents. The purpose of treatment is to suppress inflammation and prevent irreversible structural damage. However, long-term application of these drugs may lead to multiple adverse effects and is not always effective. Mesenchymal stem cells (MSCs) are multipotent progenitors with low immunogenicity, which can be obtained and expanded easily. They play an important role in regulating immune responses and repairing damaged tissues in vivo. Therefore, MSCs are considered to be a promising option for the treatment of IBD. Nonetheless, there are many factors that can reduce the efficacy of MSCs, such as gradual deterioration of functional stem cells with age, low recruitment and persistence in vivo and different routes of administration. In recent years, researchers have been able to improve the efficacy of MSCs by pretreatment, genetic modification or co-application with other substances, as well as using different tissue-derived cells, administration methods or doses. This article reviews these methods to provide references for more effective application of MSCs in the treatment of IBD in the future.
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Affiliation(s)
- Xiaofei Zhang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shaojun Wang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xueli Ding
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jing Guo
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zibin Tian
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
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5
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Perez JR, Ybarra N, Chagnon F, Lesur O, Seuntjens J, Naqa IE. Fluorescence Endomicroscopy Imaging of Mesenchymal Stem Cells in the Rat Lung. ACTA ACUST UNITED AC 2018; 45:e52. [PMID: 30040235 DOI: 10.1002/cpsc.52] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Stem cell therapy has shown great promise for organ repair and regeneration. In the context of lung disease, such as radiation-induced lung damage (RILD) in cancer radiotherapy, mesenchymal stem cells (MSCs) have shown the ability to reduce damage possibly due to their immunomodulatory properties and other unknown mechanisms. However, once MSCs are transplanted into the body, little is known as to their localization or their mechanisms of action. In this work, we proposed, implemented, and validated a fluorescence endomicroscopy (FE) imaging technique that allows for the real-time detection and quantification of transplanted pre-labeled MSCs in vivo and tracking in a rat model. This protocol covers aspects related to MSCs extraction, labeling, FE imaging, and image analysis developed in a RILD rat model but applicable to other biological systems. © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Jessica R Perez
- Medical Physics Unit, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Norma Ybarra
- Medical Physics Unit, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Frederic Chagnon
- Département de Médecine, Faculty of Medicine and Health Sciences, Université de Sherbrooke and CRC-CHUS, Sherbrooke, Quebec, Canada
| | - Olivier Lesur
- Département de Médecine, Faculty of Medicine and Health Sciences, Université de Sherbrooke and CRC-CHUS, Sherbrooke, Quebec, Canada
| | - Jan Seuntjens
- Medical Physics Unit, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Issam El Naqa
- Medical Physics Unit, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
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6
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Zheng XB, He XW, Zhang LJ, Qin HB, Lin XT, Liu XH, Zhou C, Liu HS, Hu T, Cheng HC, He XS, Wu XR, Chen YF, Ke J, Wu XJ, Lan P. Bone marrow-derived CXCR4-overexpressing MSCs display increased homing to intestine and ameliorate colitis-associated tumorigenesis in mice. Gastroenterol Rep (Oxf) 2018; 7:127-138. [PMID: 30976426 PMCID: PMC6454852 DOI: 10.1093/gastro/goy017] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 01/28/2018] [Accepted: 02/08/2018] [Indexed: 12/13/2022] Open
Abstract
Background and Objective Increasing interest has developed in the therapeutic potential of bone marrow-derived mesenchymal stem cells (MSCs) for the treatment of inflammatory bowel disease (IBD) and IBD-induced cancer. However, whether MSCs have the ability to suppress or promote tumor development remains controversial. The stromal cell-derived factor 1 (SDF-1)/C-X-C chemokine receptor type 4 (CXCR4) axis is well known to play a critical role in the homing of MSCs. In this study, we aimed to evaluate the role of CXCR4-overexpressing MSCs on the tumorigenesis of IBD. Methods MSCs were transduced with lentiviral vector carrying either CXCR4 or green fluorescent protein (GFP). Chemotaxis and invasion assays were used to detect CXCR4 expression. A mouse model of colitis-associated tumorigenesis was established using azoxymethane and dextran sulfate sodium (DSS). The mice were divided into three groups and then injected with phosphate buffer saline (PBS), MSC-GFP or MSC-CXCR4. Results Compared with the mice injected with MSC-GFP, the mice injected with MSC-CXCR4 showed relieved weight loss, longer colons, lower tumor numbers and decreased tumor load; expression of pro-inflammatory cytokines decreased, and signal transducer and activator of transcription 3 (STAT3) phosphorylation level in colon tissue was down-regulated. Conclusion CXCR4-overexpressing MSCs exhibited effective anti-tumor function, which may be associated with enhanced homing to inflamed intestinal tissues.
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Affiliation(s)
- Xiao-Bin Zheng
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Xiao-Wen He
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Long-Juan Zhang
- Laboratory of Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Hua-Bo Qin
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Xu-Tao Lin
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Department of Gastrointestinal Endoscopy, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Xuan-Hui Liu
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Chi Zhou
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Hua-Shan Liu
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Tuo Hu
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Hai-Chun Cheng
- Department of Gastrointestinal Surgery, Shenzhen Baoan Shajing People's Hospital, Guangzhou Medical University, Shenzhen, Guangdong, P.R. China
| | - Xiao-Sheng He
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Xian-Rui Wu
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Yu-Feng Chen
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Jia Ke
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Xiao-Jian Wu
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Ping Lan
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
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7
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Perez JR, Ybarra N, Chagnon F, Serban M, Lee S, Seuntjens J, Lesur O, El Naqa I. Tracking of Mesenchymal Stem Cells with Fluorescence Endomicroscopy Imaging in Radiotherapy-Induced Lung Injury. Sci Rep 2017; 7:40748. [PMID: 28102237 PMCID: PMC5244404 DOI: 10.1038/srep40748] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 12/12/2016] [Indexed: 01/31/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have potential for reducing inflammation and promoting organ repair. However, limitations in available techniques to track them and assess this potential for lung repair have hindered their applicability. In this work, we proposed, implemented and evaluated the use of fluorescence endomicroscopy as a novel imaging tool to track MSCs in vivo. MSCs were fluorescently labeled and injected into a rat model of radiation-induced lung injury via endotracheal (ET) or intravascular (IV) administration. Our results show that MSCs were visible in the lungs with fluorescence endomicroscopy. Moreover, we developed an automatic cell counting algorithm to quantify the number of detected cells in each condition. We observed a significantly higher number of detected cells in ET injection compared to IV and a slight increase in the mean number of detected cells in irradiated lungs compared to control, although the latter did not reach statistical significance. Fluorescence endomicroscopy imaging is a powerful new minimally invasive and translatable tool that can be used to track and quantify MSCs in the lungs and help assess their potential in organ repair.
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Affiliation(s)
- Jessica R Perez
- McGill University, Biomedical Engineering, Montreal, H4A 3J1, Canada.,McGill University Health Center, Medical Physics, Montreal, H4A 3J1, Canada
| | - Norma Ybarra
- McGill University Health Center, Medical Physics, Montreal, H4A 3J1, Canada
| | - Frederic Chagnon
- Sherbrooke University, Intensive Care Unit and Pulmonology, Sherbrooke, J1H 5N4, Canada
| | - Monica Serban
- McGill University Health Center, Medical Physics, Montreal, H4A 3J1, Canada
| | - Sangkyu Lee
- McGill University Health Center, Medical Physics, Montreal, H4A 3J1, Canada
| | - Jan Seuntjens
- McGill University Health Center, Medical Physics, Montreal, H4A 3J1, Canada
| | - Olivier Lesur
- Sherbrooke University, Intensive Care Unit and Pulmonology, Sherbrooke, J1H 5N4, Canada
| | - Issam El Naqa
- McGill University Health Center, Medical Physics, Montreal, H4A 3J1, Canada.,University of Michigan, Radiation Oncology, Ann Arbor, MI 48103-4943, USA
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8
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Zhang Z, Li M, Chen F, Li L, Liu J, Li Z, Ji R, Zuo X, Li Y. Probe-Based Confocal Laser Endomicroscopy for Imaging TRAIL-Expressing Mesenchymal Stem Cells to Monitor Colon Xenograft Tumors In Vivo. PLoS One 2016; 11:e0162700. [PMID: 27617958 PMCID: PMC5019474 DOI: 10.1371/journal.pone.0162700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 08/27/2016] [Indexed: 12/13/2022] Open
Abstract
Introduction Mesenchymal stem cells (MSCs) can serve as vehicles for therapeutic genes. However, little is known about MSC behavior in vivo. Here, we demonstrated that probe-based confocal laser endomicroscopy (pCLE) can be used to track MSCs in vivo and individually monitor tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) gene expression within carcinomas. Methods Isolated BALB/c nu/nu mice MSCs (MSCs) were characterized and engineered to co-express the TRAIL and enhanced green fluorescent protein (EGFP) genes. The number of MSCs co-expressing EGFP and TRAIL (TRAIL-MSCs) at tumor sites was quantified with pCLE in vivo, while their presence was confirmed using immunofluorescence (IF) and quantitative polymerase chain reaction (qPCR). The therapeutic effects of TRAIL-MSCs were evaluated by measuring the volumes and weights of subcutaneous HT29-derived xenograft tumors. Results Intravital imaging of the subcutaneous xenograft tumors revealed that BALB/c mice treated with TRAIL-MSCs exhibited specific cellular signals, whereas no specific signals were observed in the control mice. The findings from the pCLE images were consistent with the IF and qPCR results. Conclusion The pCLE results indicated that endomicroscopy could effectively quantify injected MSCs that homed to subcutaneous xenograft tumor sites in vivo and correlated well with the therapeutic effects of the TRAIL gene. By applying pCLE for the in vivo monitoring of cellular trafficking, stem cell-based anticancer gene therapeutic approaches might be feasible and attractive options for individualized clinical treatments.
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Affiliation(s)
- Zhen Zhang
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Ming Li
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Feixue Chen
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Lixiang Li
- Laboratory of Translational Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Jun Liu
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Zhen Li
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Rui Ji
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Xiuli Zuo
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
| | - Yanqing Li
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, China
- * E-mail:
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9
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Wang AH, Li M, Li CQ, Kou GJ, Zuo XL, Li YQ. Human colorectal mucosal microbiota correlates with its host niche physiology revealed by endomicroscopy. Sci Rep 2016; 6:21952. [PMID: 26916597 PMCID: PMC4768150 DOI: 10.1038/srep21952] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 01/26/2016] [Indexed: 01/05/2023] Open
Abstract
The human gut microbiota plays a pivotal role in the maintenance of health, but how the microbiota interacts with the host at the colorectal mucosa is poorly understood. We proposed that confocal laser endomicroscopy (CLE) might help to untangle this relationship by providing in vivo physiological information of the mucosa. We used CLE to evaluate the in vivo physiology of human colorectal mucosa, and the mucosal microbiota was quantified using 16 s rDNA pyrosequencing. The human mucosal microbiota agglomerated to three major clusters dominated by Prevotella, Bacteroides and Lactococcus. The mucosal microbiota clusters did not significantly correlate with the disease status or biopsy sites but closely correlated with the mucosal niche physiology, which was non-invasively revealed by CLE. Inflammation tilted two subnetworks within the mucosal microbiota. Infiltration of inflammatory cells significantly correlated with multiple components in the predicted metagenome, such as the VirD2 component of the type IV secretory pathway. Our data suggest that a close correlation exists between the mucosal microbiota and the colorectal mucosal physiology, and CLE is a clinically available tool that can be used to facilitate the study of the in vivo correlation between colorectal mucosal physiology and the mucosal microbiota.
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Affiliation(s)
- Ai-Hua Wang
- Department of Gastroenterology, Shandong University, Qilu Hospital, Jinan, 250012, China.,Department of Gastroenterology, Shandong Rongjun General Hospital, Jinan, 250013, China
| | - Ming Li
- Department of Gastroenterology, Shandong University, Qilu Hospital, Jinan, 250012, China
| | - Chang-Qing Li
- Department of Gastroenterology, Shandong University, Qilu Hospital, Jinan, 250012, China
| | - Guan-Jun Kou
- Department of Gastroenterology, Shandong University, Qilu Hospital, Jinan, 250012, China
| | - Xiu-Li Zuo
- Department of Gastroenterology, Shandong University, Qilu Hospital, Jinan, 250012, China
| | - Yan-Qing Li
- Department of Gastroenterology, Shandong University, Qilu Hospital, Jinan, 250012, China
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