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Gao J, Liang Y, Chen J, Shen H, Liu H. CXCR4 enhances the inhibitory effects of bone mesenchymal stem cells on lung cell apoptosis in a rat model of smoking-induced COPD. Apoptosis 2023; 28:639-652. [PMID: 36719470 PMCID: PMC9888343 DOI: 10.1007/s10495-022-01800-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2022] [Indexed: 02/01/2023]
Abstract
Chronic obstructive pulmonary disease is the 3rd leading cause of death worldwide, and the available treatments are unsatisfactory, resulting in a major economic burden. As cellular therapy is commonly used for lung disease, we investigated a treatment with CXCR4-overexpressing BMSCs in a COPD model. We extracted and purified Bone marrow mesenchymal stem cells (BMSCs) from SD rats. COPD apoptosis model was established by cigarette smoke exposure. BMSCs (1 × 106 cells per injection)were transplanted in vivo twice a month during model establishment, and alveolar rupture in the lung was assessed. Lung cell apoptosis was assessed by terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) analysis, and the concentrations of apoptotic proteins in the lungs were detected by Western blotting. We successfully isolated BMSCs and established CXCR4-overexpressing BMSCs. qRT‒PCR and Western blotting detection both reveal that CXCR4 mRNA level and protein both significantly higher expression in CXCR4-BMSCs than the pBABE-BMSCs. Continuous cigarette smoke exposure caused alveolar septal rupture: In the model group, the alveolar mean linear intercept in the first month was significantly lower than that in the third month (p < 0.05). In the third month, the alveolar mean linear intercept values of the control and CXCR4-BMSC groups were lower than those of the model group (control group p < 0.01, CXCR4-BMSC group p < 0.05), and TUNEL staining revealed that the apoptosis rates of the control and CXCR4-BMSC groups were significantly lower than those of the model group (p < 0.01). Furthermore, the levels of the apoptotic proteins cleaved caspase-8, cleaved caspase-3 and cleaved PARP-1 were higher in the model group than in the control group (p < 0.05) and significantly lower in the CXCR4-BMSC group than in the model group (p < 0.05). The transplantation of CXCR4-overexpressing BMSCs during COPD model generation significantly inhibited apoptosis via the extrinsic apoptosis pathway. CXCR4 enhances the inhibitory effects of bone mesenchymal stem cells on lung cell apoptosis in a rat model of smoking-induced COPD.
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Affiliation(s)
- Jiansheng Gao
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yuli Liang
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiabao Chen
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Huihui Shen
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Hua Liu
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
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Hosfield BD, Shelley WC, Mesfin FM, Brokaw JP, Manohar K, Liu J, Li H, Pecoraro AR, Singh K, Markel TA. Age disparities in intestinal stem cell quantities: a possible explanation for preterm infant susceptibility to necrotizing enterocolitis. Pediatr Surg Int 2022; 38:1971-1979. [PMID: 36208323 DOI: 10.1007/s00383-022-05257-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/29/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE Preterm infants are more susceptible to necrotizing enterocolitis (NEC) than term Queryinfants. This may be due to a relative paucity of Lgr5+ or Bmi1+-expressing intestinal stem cells (ISCs) which are responsible for promoting intestinal recovery after injury. We hypothesized that the cellular markers of Lgr5+ and Bmi1+, which represent the two distinct ISC populations, would be lower in younger mice compared to older mice. In addition, we hypothesized that experimental NEC would result in a greater loss of Lgr5+ expression compared to Bmi1+ expression. METHODS Transgenic mice with EGFP-labeled Lgr5 underwent euthanasia at 10 different time points from E15 to P56 (n = 8-11/group). Lgr5+-expressing ISCs were quantified by GFP ELISA and Bmi1+ was assessed by qPCR. In addition, Lgr5EGFP mice underwent experimental NEC via formula feeding and hypoxic and hypothermic stress. Additional portions of the intestine underwent immunostaining with anti-GFP or anti-Bmi1+ antibodies to confirm ELISA and PCR results. For statistical analysis, p < 0.05 was significant. RESULTS Lgr5+ and Bmi1+expression was lowest in embryonal and early postnatal mice and increased with age in all segments of the intestine. Experimental NEC was associated with loss of Lgr5+-expressing ISCs but no significant change in Bmi1+ expression. CONCLUSION Lgr5+ and Bmi1+ expression increase with age. Lgr5+-expressing ISCs are lower following experimental necrotizing enterocolitis while Bmi1+ expression remains relatively unchanged. Developing a targeted medical therapy to protect the low population of ISCs in preterm infants may promote tissue recovery and regeneration after injury from NEC.
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Affiliation(s)
- Brian D Hosfield
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - W Christopher Shelley
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Fikir M Mesfin
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - John P Brokaw
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Krishna Manohar
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jianyun Liu
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Hongge Li
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Anthony R Pecoraro
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kanhaiya Singh
- Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Troy A Markel
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA. .,Riley Hospital for Children at Indiana University Health, 705 Riley Hospital Dr., RI 2500, Indianapolis, IN, USA.
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Gao Y, Chen H, Cang X, Chen H, Di Y, Qi J, Cai H, Luo K, Jin S. Transplanted hair follicle mesenchymal stem cells alleviated small intestinal ischemia–reperfusion injury via intrinsic and paracrine mechanisms in a rat model. Front Cell Dev Biol 2022; 10:1016597. [PMID: 36274835 PMCID: PMC9581151 DOI: 10.3389/fcell.2022.1016597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Small intestinal ischemia-reperfusion (IR) injury is a common intestinal disease with high morbidity and mortality. Mesenchymal stem cells (MSCs) have been increasingly used in various intestinal diseases. This study aimed to evaluate the therapeutic effect of hair follicle MSCs (HFMSCs) on small intestinal IR injury. Methods: We divided Sprague–Dawley rats into three groups: the sham group, IR group and IR + HFMSCs group. A small intestinal IR injury rat model was established by clamping of the superior mesenteric artery (SMA) for 30 min and reperfusion for 2 h. HFMSCs were cultured in vitro and injected into the rats through the tail vein. Seven days after treatment, the intrinsic homing and differentiation characteristics of the HFMSCs were observed by immunofluorescence and immunohistochemical staining, and the paracrine mechanism of HFMSCs was assessed by Western blotting and enzyme-linked immunosorbent assay (ELISA). Results: A small intestinal IR injury model was successfully established. HFMSCs could home to damaged sites, express proliferating cell nuclear antigen (PCNA) and intestinal stem cell (ISC) markers, and promote small intestinal ISC marker expression. The expression levels of angiopoietin-1 (ANG1), vascular endothelial growth factor (VEGF) and insulin growth factor-1 (IGF1) in the IR + HFMSCs group were higher than those in the IR group. HFMSCs could prevent IR-induced apoptosis by increasing B-cell lymphoma-2 (Bcl-2) expression and decreasing Bcl-2 homologous antagonist/killer (Bax) expression. Oxidative stress level detection showed that the malondialdehyde (MDA) content was decreased, while the superoxide dismutase (SOD) content was increased in the IR + HFMSCs group compared to the IR group. An elevated diamine oxidase (DAO) level reflected the potential protective effect of HFMSCs on the intestinal mucosal barrier. Conclusion: HFMSCs are beneficial to alleviate small intestinal IR injury through intrinsic homing to the small intestine and by differentiating into ISCs, via a paracrine mechanism to promote angiogenesis, reduce apoptosis, regulate the oxidative stress response, and protect intestinal mucosal function potentially. Therefore, this study suggests that HFMSCs serve as a new option for the treatment of small intestinal IR injury.
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El-Serafi AT, El-Serafi I, Steinvall I, Sjöberg F, Elmasry M. A Systematic Review of Keratinocyte Secretions: A Regenerative Perspective. Int J Mol Sci 2022; 23:ijms23147934. [PMID: 35887279 PMCID: PMC9323141 DOI: 10.3390/ijms23147934] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/03/2022] [Accepted: 07/15/2022] [Indexed: 02/01/2023] Open
Abstract
Cell regenerative therapy is a modern solution for difficult-to-heal wounds. Keratinocytes, the most common cell type in the skin, are difficult to obtain without the creation of another wound. Stem cell differentiation towards keratinocytes is a challenging process, and it is difficult to reproduce in chemically defined media. Nevertheless, a co-culture of keratinocytes with stem cells usually achieves efficient differentiation. This systematic review aims to identify the secretions of normal human keratinocytes reported in the literature and correlate them with the differentiation process. An online search revealed 338 references, of which 100 met the selection criteria. A total of 80 different keratinocyte secretions were reported, which can be grouped mainly into cytokines, growth factors, and antimicrobial peptides. The growth-factor group mostly affects stem cell differentiation into keratinocytes, especially epidermal growth factor and members of the transforming growth factor family. Nevertheless, the reported secretions reflected the nature of the involved studies, as most of them focused on keratinocyte interaction with inflammation. This review highlights the secretory function of keratinocytes, as well as the need for intense investigation to characterize these secretions and evaluate their regenerative capacities.
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Affiliation(s)
- Ahmed T. El-Serafi
- Department of Biomedical and Clinical Sciences, Linköping University, 58183 Linkoping, Sweden; (I.S.); (F.S.); (M.E.)
- Department of Hand Surgery, Plastic Surgery and Burns, Linköping University, 58183 Linkoping, Sweden;
- Correspondence:
| | - Ibrahim El-Serafi
- Department of Hand Surgery, Plastic Surgery and Burns, Linköping University, 58183 Linkoping, Sweden;
- Basic Medical Sciences Department, College of Medicine, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Ingrid Steinvall
- Department of Biomedical and Clinical Sciences, Linköping University, 58183 Linkoping, Sweden; (I.S.); (F.S.); (M.E.)
- Department of Hand Surgery, Plastic Surgery and Burns, Linköping University, 58183 Linkoping, Sweden;
| | - Folke Sjöberg
- Department of Biomedical and Clinical Sciences, Linköping University, 58183 Linkoping, Sweden; (I.S.); (F.S.); (M.E.)
- Department of Hand Surgery, Plastic Surgery and Burns, Linköping University, 58183 Linkoping, Sweden;
| | - Moustafa Elmasry
- Department of Biomedical and Clinical Sciences, Linköping University, 58183 Linkoping, Sweden; (I.S.); (F.S.); (M.E.)
- Department of Hand Surgery, Plastic Surgery and Burns, Linköping University, 58183 Linkoping, Sweden;
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MSC Promotes the Secretion of Exosomal miR-34a-5p and Improve Intestinal Barrier Function Through METTL3-Mediated Pre-miR-34A m 6A Modification. Mol Neurobiol 2022; 59:5222-5235. [PMID: 35687301 DOI: 10.1007/s12035-022-02833-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/04/2022] [Indexed: 10/18/2022]
Abstract
Intestinal ischemia/reperfusion (I/R) injury (IIRI) is associated with high prevalence and mortality rate. Recently, mesenchymal stem cell (MSC) therapy attracted more attentions. However, the function and regulatory mechanism of MSC-derived exosomal miRNAs during IIRI remain largely uninvestigated. The in vitro and in vivo IIRI models were established. MSC were characterized by immunofluorescent staining and flow cytometry. Purified exosomes were characterized by transmission electron microscopy (TEM), flow cytometry, and western blot. The expression of key molecules was detected by western blot and qRT-PCR. CCK-8, TUNEL, and transepithelial electrical resistance (TER) assays were employed to assess cell viability, apoptosis, and intestinal integrity, respectively. Pre-miR-34A m6 modification was evaluated by methylated RNA immunoprecipitation (MeRIP)-qPCR. RNA pull-down and RIP were used to validate the direct association between pre-miR-34A and IGF2BP3. MSC-derived exosomal miR-34a-5p alleviated OGD/R-induced injury. In addition, MSC ameliorated OGD/R-induced injury through METTL3 pathway. Mechanistic study revealed that miR-34a-5p was modulated by METTL3/IGF2BP3-mediated m6A modification in MSC. The in vitro and in vivo functional experiments revealed that MSC secreted exosomal miR-34a-5p and ameliorated IIRI through METTL3/IGF2BP3-mediated m6A modification of pre-miR-34A. MSC promoted the secretion of exosomal miR-34a-5p and improved intestinal barrier function through METTL3/IGF2BP3-mediated pre-miR-34A m6A modification.
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Shi Y, Zhang X, Wan Z, Liu X, Chen F, Zhang J, Leng Y. Mesenchymal stem cells against intestinal ischemia-reperfusion injury: a systematic review and meta-analysis of preclinical studies. Stem Cell Res Ther 2022; 13:216. [PMID: 35619154 PMCID: PMC9137086 DOI: 10.1186/s13287-022-02896-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 05/09/2022] [Indexed: 01/01/2023] Open
Abstract
Background Intestinal ischemia–reperfusion injury (IRI) causes localized and distant tissue lesions. Multiple organ failure is a common complication of severe intestinal IRI, leading to its high rates of morbidity and mortality. Thus far, this is poorly treated, and there is an urgent need for new more efficacious treatments. This study evaluated the beneficial effects of mesenchymal stem cells (MSCs) therapy on intestinal IRI using many animal experiments. Methods We conducted a comprehensive literature search from 4 databases: Pubmed, Embase, Cochrane library, and Web of science. Primary outcomes included the survival rate, Chiu’s score, intestinal levels of IL-6, TNF-α and MDA, as well as serum levels of DAO, D-Lactate, and TNF-α. Statistical analysis was carried out using Review Manager 5.3. Results It included Eighteen eligible researches in the final analysis. We demonstrated that survival rates in animals following intestinal IRI were higher with MSCs treatment compared to vehicle treatment. Besides, MSCs treatment attenuated intestinal injury caused by IRI, characterized by lower Chiu’s score (− 1.96, 95% CI − 2.72 to − 1.19, P < 0.00001), less intestinal inflammation (IL-6 (− 2.73, 95% CI − 4.19 to − 1.27, P = 0.0002), TNF-α (− 3.00, 95% CI − 4.74 to − 1.26, P = 0.0007)) and oxidative stress (MDA (− 2.18, 95% CI − 3.17 to − 1.19, P < 0.0001)), and decreased serum levels of DAO (− 1.39, 95% CI − 2.07 to − 0.72, P < 0.0001), D-Lactate (− 1.54, 95% CI − 2.18 to − 0.90, P < 0.00001) and TNF-α (− 2.42, 95% CI − 3.45 to − 1.40, P < 0.00001). The possible mechanism for MSCs to treat intestinal IRI might be through reducing inflammation, alleviating oxidative stress, as well as inhibiting the apoptosis and pyroptosis of the intestinal epithelial cells. Conclusions Taken together, these studies revealed that MSCs as a promising new treatment for intestinal IRI, and the mechanism of which may be associated with inflammation, oxidative stress, apoptosis, and pyroptosis. However, further studies will be required to confirm these findings. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02896-y.
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Affiliation(s)
- Yajing Shi
- The First Clinical Medical College, Lanzhou University, No. 199, Donggang Road West, Chengguan District, Lanzhou, Gansu, China
| | - Xiaolan Zhang
- The Department of Anesthesiology, Gansu Provincial Maternity and Child-Care Hospital, No. 143, Qilihe North Street, Qilihe District, Lanzhou, Gansu, China
| | - Zhanhai Wan
- The First Clinical Medical College, Lanzhou University, No. 199, Donggang Road West, Chengguan District, Lanzhou, Gansu, China. .,The Department of Anesthesiology, The First Hospital of Lanzhou University, No. 1, Donggang Road West, Chengguan District, Lanzhou, Gansu, China.
| | - Xin Liu
- The First Clinical Medical College, Lanzhou University, No. 199, Donggang Road West, Chengguan District, Lanzhou, Gansu, China.,The Department of Anesthesiology, The First Hospital of Lanzhou University, No. 1, Donggang Road West, Chengguan District, Lanzhou, Gansu, China
| | - Feng Chen
- The First Clinical Medical College, Lanzhou University, No. 199, Donggang Road West, Chengguan District, Lanzhou, Gansu, China
| | - Jianmin Zhang
- The First Clinical Medical College, Lanzhou University, No. 199, Donggang Road West, Chengguan District, Lanzhou, Gansu, China
| | - Yufang Leng
- The First Clinical Medical College, Lanzhou University, No. 199, Donggang Road West, Chengguan District, Lanzhou, Gansu, China. .,The Department of Anesthesiology, The First Hospital of Lanzhou University, No. 1, Donggang Road West, Chengguan District, Lanzhou, Gansu, China.
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Casili G, Scuderi SA, Lanza M, Filippone A, Basilotta R, Mannino D, Campolo M, Esposito E, Paterniti I. The protective role of prolyl oligopeptidase (POP) inhibition in acute lung injury induced by intestinal ischemia-reperfusion. Oncotarget 2021; 12:1663-1676. [PMID: 34434495 PMCID: PMC8378771 DOI: 10.18632/oncotarget.28041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/27/2021] [Indexed: 12/15/2022] Open
Abstract
Intestinal ischemia-reperfusion (II/R) develops when the blood flow to the intestines decreases, followed by the reestablishment of the blood supply to the ischemic tissue, resulting in intestinal mucosal barrier dysfunction, with consequent severe local and systemic inflammation. Acute lung injury (ALI) represents the most serious complication after II/R. KYP-2047 is a selective inhibitor of prolyl oligopeptidase (POP), a serine protease involved in the release of pro-angiogenic and inflammatory molecules. The aim of the present study is to assess the effects of POP-inhibition mediated by KYP-2047 treatment in the pathophysiology of ALI following II/R. An in vivo model of II/R was performed and mice were subjected to KYP-2047 treatment (intraperitoneal, 1, 2.5 and 5 mg/kg). Histological analysis, Masson’s trichrome staining, immunohistochemical, immunofluorescence, biochemical and western blots analysis were performed on ileum and lung samples. KYP-2047 treatment ameliorated histological alteration in ileum and lung, reduced collagen amount and lowered inflammatory protein levels. Moreover, TGF-β1, eNOS, VEGF and CD34 positive staining has been modulated; also, a reduction in apoptosis expression was confirmed. This research revealed the strong anti-inflammatory potential of KYP-2047 associated to its modulatory role on angiogenesis and apoptosis, suggesting POP as a novel therapeutic target for ALI after II/R.
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Affiliation(s)
- Giovanna Casili
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Sarah Adriana Scuderi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Marika Lanza
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Alessia Filippone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Rossella Basilotta
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Deborah Mannino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Michela Campolo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Irene Paterniti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
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Sahu A, Jeon J, Lee MS, Yang HS, Tae G. Nanozyme Impregnated Mesenchymal Stem Cells for Hepatic Ischemia-Reperfusion Injury Alleviation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:25649-25662. [PMID: 33974389 DOI: 10.1021/acsami.1c03027] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Mesenchymal stem cell (MSC) based therapy holds great potential for treating numerous diseases owing to their capability to heal injured tissue/organs through paracrine factors secretion and immunomodulation. Despite the high hopes, the low viability of transplanted cells in the injured tissues due to the elevated oxidative stress levels remains the largest obstacle in MSC-based cell therapy. To achieve desired therapeutic efficiency, the survival of the transplanted MSCs in the high oxidative stress environment needs to be ensured. Herein, we proposed the use of a ROS-scavenging nanozyme to protect transplanted MSCs from oxidative stress-mediated apoptosis and thereby improve the therapeutic effect. Prussian blue (PB) nanoparticles as a biocompatible ROS-scavenging nanozyme were incorporated into the MSCs without affecting the stemness and differentiation potential of MSCs. The nanozyme impregnation significantly improved the survival of MSCs in a high oxidative stress condition as well as augmented their paracrine effect and anti-inflammatory properties, resulting in a profound therapeutic effect in vivo in the liver ischemia-reperfusion (I/R) injury animal model. Our results indicated that the nanozyme incorporation into MSCs is a simple but efficient way to improve the therapeutic potential of MSC-based cell therapy.
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Affiliation(s)
- Abhishek Sahu
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Jin Jeon
- Department of Nanobiomedical Science and BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Min Suk Lee
- Department of Nanobiomedical Science and BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Hee Seok Yang
- Department of Nanobiomedical Science and BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
- Center for Bio-Medical Engineering Core-Facility, Dankook University, Cheonan, 31116, Republic of Korea
| | - Giyoong Tae
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
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Abstract
PURPOSE Hydrogen sulfide (H2S) has many beneficial biological properties, including the ability to promote vasodilation. It has been shown to be released from stem cells and increased by hypoxia. Therefore, H2S may be an important paracrine factor in stem cell-mediated intestinal protection. We hypothesized that H2S created through conventional pathways would be a critical component of stem cell-mediated intestinal protection after ischemic injury. METHODS Human bone marrow-derived mesenchymal stem cells (BMSCs) were transfected with negative control siRNA (Scramble), or with siRNA to CBS, MPST, or CTH. Knockdown was confirmed with PCR and H2S gas assessed with AzMC fluorophore. Eight-week-old male mice then underwent intestinal ischemia for 60 min, after which time, perfusion was restored. BMSCs from each of the above groups were then placed into the mouse abdominal cavity before final closure. After 24 h, mice were reanesthetized and mesenteric perfusion was assessed by Laser Doppler Imaging (LDI). Animals were then sacrificed and intestines excised, placed in formalin, paraffin embedded, and stained with H & E. Intestines were then scored with a common mucosal injury grading scale. RESULTS PCR confirmed knockdown of conventional H2S-producing enzymes (CBS, MPST, CTH). H2S gas was decreased in MPST and CTH-transfected cells in normoxic conditions, but was not decreased compared with Scramble in any of the transfected groups in hypoxic conditions. BMSCs promoted increased mesenteric perfusion at 24 h postischemia compared with vehicle. Transfected stem cells provided equivalent protection. Histologic injury was improved with BMSCs compared with vehicle. CBS, MPST, and CTH knockdown cell lines did not have any worse histological injury compared with Scramble. CONCLUSIONS Knocking down conventional H2S-producing enzymes only impacted gas production in normoxic conditions. When cells were transfected in hypoxic conditions, as would be expected in the ischemic intestines, H2S gas was not depressed. These data, along with unchanged perfusion and histological injury parameters with conventional enzyme knockdown, would indicate that alternative H2S production pathways may be initiated during hypoxic and/or ischemic events.
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Abstract
The 2019 Necrotizing Enterocolitis (NEC) Symposium expanded upon the NEC Society's goals of bringing stakeholders together to discuss cutting-edge science, potential therapeutics and preventative measures, as well as the patient-family perspectives of NEC. The Symposium facilitated discussions and shared knowledge with the overarching goal of creating "A World Without NEC." To accomplish this goal, new research to advance the state of the science is necessary. Over the last decade, several established investigators have significantly improved our understanding of the pathophysiology of NEC and they have paved the way for the next generation of clinician-scientists funded to perform NEC research. This article will serve to highlight the contributions of these young clinician-scientists that seek to elucidate how immune, microbial and nervous system dysregulation contributes to the pathophysiology of NEC.
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Markel TA, Drucker NA, Jensen AR, Olson KR. Human Mesenchymal Stem Cell Hydrogen Sulfide Production Critically Impacts the Release of Other Paracrine Mediators After Injury. J Surg Res 2020; 254:75-82. [PMID: 32417499 DOI: 10.1016/j.jss.2020.04.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/09/2020] [Accepted: 04/11/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND The use of mesenchymal stem cells (MSCs) for treatment during ischemia is novel. Hydrogen sulfide (H2S) is an important paracrine mediator that is released from MSCs to facilitate angiogenesis and vasodilation. Three enzymes, cystathionine-beta-synthase (CBS), cystathionine-gamma-lyase (CSE), and 3-mercaptopyruvate-sulfurtransferase (MPST), are mainly responsible for H2S production. However, it is unclear how these enzymes impact the production of other critical growth factors and chemokines. We hypothesized that the enzymes responsible for H2S production in human MSCs would also critically regulate other growth factors and chemokines. MATERIALS AND METHODS Human MSCs were transfected with CBS, MPST, CSE, or negative control small interfering RNA. Knockdown of enzymes was confirmed by polymerase chain reaction. Cells were plated in 12-well plates at 100,000 cells per well and stimulated with tumor necrosis factor-α (TNF-α; 50 ng/mL), lipopolysaccharide (LPS; 200 ng/mL), or 5% hypoxia for 24 h. Supernatants were collected, and cytokines measured by multiplex beaded assay. Data were compared with the Mann-Whitney U-test, and P < 0.05 was significant. RESULTS TNF-α, LPS, and hypoxia effectively stimulated MSCs. Granulocyte colony-stimulating factor (GCSF), epidermal growth factor, fibroblast growth factor, granulocyte/monocyte colony-stimulating factor (GMCSF), vascular endothelial growth factor, and interferon gamma-inducible protein 10 were all significantly elevated when CSE was knocked down during TNF-α stimulation (P < 0.05). Knockdown of MPST during LPS stimulation more readily increased GCSF and epidermal growth factor but decreased GMCSF (P < 0.05). CBS knockdown decreased production of GCSF, fibroblast growth factor, GMCSF, and vascular endothelial growth factor (P < 0.05) after hypoxia. CONCLUSIONS The enzymes that produce H2S in MSCs are also responsible for the production of other stem cell paracrine mediators under stressful stimuli. Therefore, reprogramming MSCs to endogenously produce more H2S as a therapeutic intervention could also critically impact other paracrine mediators, which may alter the desired beneficial effects.
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Affiliation(s)
- Troy A Markel
- Section of Pediatric Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana; Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana; Department of Physiology, Indiana University School of Medicine, South Bend, Indiana.
| | - Natalie A Drucker
- Section of Pediatric Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana; Department of Physiology, Indiana University School of Medicine, South Bend, Indiana
| | - Amanda R Jensen
- Section of Pediatric Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana; Department of Physiology, Indiana University School of Medicine, South Bend, Indiana
| | - Kenneth R Olson
- Section of Pediatric Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana; Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana; Department of Physiology, Indiana University School of Medicine, South Bend, Indiana
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Wang C, Cao J, Duan S, Xu R, Yu H, Huo X, Qian Y. Effect of MicroRNA-126a-3p on Bone Marrow Mesenchymal Stem Cells Repairing Blood-brain Barrier and Nerve Injury after Intracerebral Hemorrhage. J Stroke Cerebrovasc Dis 2020; 29:104748. [PMID: 32160957 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104748] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 01/10/2020] [Accepted: 02/09/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Intracerebral hemorrhage (ICH) is a disease that threatens human health due to its high morbidity and mortality. On behalf of finding the better methods in the treatment of ICH, researchers pay more attention to a new technology which is finding effective genes to modify stem cells. METHODS In this study, we isolated, cultured and identified bone marrow mesenchymal stem cells (MSCs) in vitro. Further, the MSCs (transfected with lentivirus expressing microRNA-126a-3p (miR-126)) were injected into the type Ⅶ collagenase-induced ICH rats to investigate the recovery effects of blood-brain barrier (BBB) and nerve damage in vivo. RESULTS The MSCs surface marker molecules (CD29: 98.5%; CD90: 96.5%) were highly expressed, and the blood cell surface molecule was negatively expressed (CD45: 2%). Meanwhile, it was verified that miR-126 facilitated the differentiation of MSCs into vascular endothelial cells, owing to the rise of markers (CD31 and VE-cadherin). The modified neurological severity score, modified limb placing test score, brain water content and evans blue content were reduced after transplanted miR-126-modified MSCs. It was found that miR-126 accelerated the differentiation of MSCs into vascular endothelial cells via immunohistochemical staining in vivo. HE staining indicated the area of edema was obviously decreased compared with that in ICH + vector-MSCs group. MiR-126-modified MSCs alleviated the cell apoptosis in brain tissues by TUNEL assay. In addition, the mRNA and protein expression of protease activated receptor-1 and matrix metalloproteinase-9 were diminished, whilst the expression of zonula occludens-1 (ZO-1) and claudin-5 were enhanced in ICH+miR-126-MSCs group. Immunofluorescence assay revealed that miR-126-modified MSCs decreased the disruption of tight junction (ZO-1 and claudin-5). CONCLUSIONS All data illustrate that miR-126-modified MSCs repair BBB and nerve injury after ICH.
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Affiliation(s)
- Chunyan Wang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.
| | - Jingwei Cao
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Shurong Duan
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Ran Xu
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Hongli Yu
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Xin Huo
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Yuanyuan Qian
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
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Optimizing organs for transplantation; advancements in perfusion and preservation methods. Transplant Rev (Orlando) 2019; 34:100514. [PMID: 31645271 DOI: 10.1016/j.trre.2019.100514] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 06/20/2019] [Accepted: 10/11/2019] [Indexed: 02/06/2023]
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Moore HM, Drucker NA, Hosfield BD, Shelley WC, Markel TA. Sildenafil as a Rescue Agent Following Intestinal Ischemia and Reperfusion Injury. J Surg Res 2019; 246:512-518. [PMID: 31630883 DOI: 10.1016/j.jss.2019.09.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/20/2019] [Accepted: 09/18/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Acute mesenteric ischemia carries a significant morbidity. Measures to improve blood flow parameters to the intestine may ameliorate the disease. Sildenafil, a phosphodiesterase 5 inhibitor, increases cyclic guanosine monophosphate and has been shown to prevent the effects of ischemia when given before injury. However, its effects as a rescue agent have not been established. We therefore hypothesized that sildenafil, when given as a rescue agent for intestinal ischemia, would improve mesenteric perfusion, limit intestinal epithelial injury, and decrease intestinal leukocyte chemoattractants. METHODS Eight to 12 wk-old-male C57BL/6J mice underwent laparotomy and temporary occlusion of the superior mesenteric artery for 60 min. Following ischemia, reperfusion was permitted, and before closing the abdomen, sildenafil was injected intraperitoneally in a variety of concentrations. After 24 h, reperfusion was reassessed. Animals were euthanized and intestines evaluated for histologic injury and leukocyte chemoattractants. RESULTS Postischemic administration of sildenafil did not improve mesenteric perfusion following intestinal ischemia and reperfusion injury. However, sildenafil did improve histologic injury scores in dose ranges of 0.01 to 10 mg/kg. No difference was noted in histological injury with 100 mg/kg dose, and all members of the 1000 mg/kg group died within 24 h of injury. Epithelial protection was not facilitated by the leukocyte chemoattractants Regulated on Activation, Normal T Cell Expressed, and Secreted, macrophage inflammatory protein 1 alpha, monocyte chemoattractant protein, neutrophil activating protein, or granulocyte colony stimulating factor. CONCLUSIONS Administration of sildenafil following intestinal ischemia may limit intestinal mucosal injury but does not appear to alter mesenteric perfusion or leukocyte chemoattractant influx. TYPE: Basic science. LEVEL OF EVIDENCE N/A.
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Affiliation(s)
- Hannah M Moore
- The Indiana University School of Medicine, Indiana University Health, Indianapolis, Indiana
| | - Natalie A Drucker
- The Indiana University School of Medicine, Indiana University Health, Indianapolis, Indiana; Department of Surgery, Section of Pediatric Surgery, Indiana University Health, Indianapolis, Indiana
| | - Brian D Hosfield
- The Indiana University School of Medicine, Indiana University Health, Indianapolis, Indiana; Department of Surgery, Section of Pediatric Surgery, Indiana University Health, Indianapolis, Indiana
| | - W Chris Shelley
- The Indiana University School of Medicine, Indiana University Health, Indianapolis, Indiana; Department of Surgery, Section of Pediatric Surgery, Indiana University Health, Indianapolis, Indiana
| | - Troy A Markel
- The Indiana University School of Medicine, Indiana University Health, Indianapolis, Indiana; Department of Surgery, Section of Pediatric Surgery, Indiana University Health, Indianapolis, Indiana; Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana.
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15
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Yan XT, Cheng XL, He XH, Zheng WZ, Xiao-Fang Y, Hu C. The HO-1-expressing bone mesenchymal stem cells protects intestine from ischemia and reperfusion injury. BMC Gastroenterol 2019; 19:124. [PMID: 31299915 PMCID: PMC6626374 DOI: 10.1186/s12876-019-1042-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 06/30/2019] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Bone mesenchymal stromal cells (BMSC) showed protective potential against intestinal ischemia. Oxygenase-1(HO-1) could alleviate oxidative stress. In the present study, we constructed HO-1-expressing BMSC and detected the effects of it on survival, intestinal injury and inflammation following intestinal ischemia and reperfusion injury (I/R). METHODS In this experiment, eighty adult male mice were divided into Sham, I/R, I/R + BMSC, I/R + BMSC/HO-1 groups. Mice were anesthetized and intestinal I/R model were established by temporarily occluding the superior mesenteric artery for 60 min with a non-crushing clamp. Following ischemia, the clamp was removed and the intestines were allowed for reperfusion. Prior to abdominal closure, BMSC/ HO-1 (2 × 106 cells) or BMSC (2 × 106 cells) were injected into the peritoneum of I/R mice respectively. Mice were allowed to recover for 24 h and then survival rate, intestinal injury and inflammation were determined. Reactive oxygen species (ROS) was assayed by fluorescent probe. TNFα and IL-6 were assayed by ELISA. RESULTS BMSC/HO-1 increased seven day survival rate, improved intestinal injury and down-regulated inflammation after intestinal I/R when compared with sole BMSC (p < 0.05 respectively). Multiple pro-inflammatory media were also decreased following application of BMSC/HO-1, when compared with sole BMSC (p < 0.05) respectively, suggesting that BMSC /HO-1 had a better protection to intestinal I/R than BMSC therapy. CONCLUSION Administration of BMSC/HO-1 following intestinal I/R, significantly improved intestinal I/R by limiting intestinal damage and inflammation.
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Affiliation(s)
- Xue-Tao Yan
- Department of Anesthesiology, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518102, China.
| | - Xiao-Li Cheng
- Department of Anesthesiology, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518102, China
| | - Xiang-Hu He
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Wen-Zhong Zheng
- Department of Anesthesiology, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518102, China
| | - Yuan Xiao-Fang
- Department of Anesthesiology, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518102, China
| | - Chen Hu
- Department of Anesthesiology, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518102, China
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16
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Kshitiz, Ellison DD, Suhail Y, Afzal J, Woo L, Kilic O, Spees J, Levchenko A. Dynamic secretome of bone marrow-derived stromal cells reveals a cardioprotective biochemical cocktail. Proc Natl Acad Sci U S A 2019; 116:14374-14383. [PMID: 31239339 PMCID: PMC6628676 DOI: 10.1073/pnas.1902598116] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Transplanted stromal cells have demonstrated considerable promise as therapeutic agents in diverse disease settings. Paracrine signaling can be an important mediator of these therapeutic effects at the sites of acute or persistent injury and inflammation. As many stromal cell types, including bone marrow-derived stromal cells (BMSCs), display tissue-specific responses, there is a need to explore their secretory dynamics in the context of tissue and injury type. Paracrine signals are not static, and could encode contextual dynamics in the kinetic changes of the concentrations of the secreted ligands. However, precise measurement of dynamic and context-specific cellular secretory signatures, particularly in adherent cells, remains challenging. Here, by creating an experimental and computational analysis platform, we reconstructed dynamic secretory signatures of cells based on a very limited number of time points. By using this approach, we demonstrate that the secretory signatures of CD133-positive BMSCs are uniquely defined by distinct biological contexts, including signals from injured cardiac cells undergoing oxidative stress, characteristic of cardiac infarction. Furthermore, we show that the mixture of recombinant factors reproducing the dynamics of BMSC-generated secretion can mediate a highly effective rescue of cells injured by oxidative stress and an improved cardiac output. These results support the importance of the dynamic multifactorial paracrine signals in mediating remedial effects of stromal stem cells, and pave the way for stem cell-inspired cell-free treatments of cardiac and other injuries.
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Affiliation(s)
- Kshitiz
- Yale Institute of Systems Biology, Yale University, West Haven, CT 06516;
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030
| | - David D Ellison
- Department of Medicine, The Johns Hopkins School of Medicine, Baltimore, MD 21205
| | - Yasir Suhail
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030
| | - Junaid Afzal
- Department of Cardiology, University of California, San Francisco, CA 94115
| | - Laura Woo
- Department of Medicine, The Johns Hopkins School of Medicine, Baltimore, MD 21205
| | - Onur Kilic
- Yale Institute of Systems Biology, Yale University, West Haven, CT 06516
| | - Jeffrey Spees
- Department of Cellular Molecular and Biomedical Sciences, University of Vermont, Burlington, VT 05405
| | - Andre Levchenko
- Yale Institute of Systems Biology, Yale University, West Haven, CT 06516;
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Drucker NA, Te Winkel JP, Shelley WC, Olson KR, Markel TA. Inhibiting hydrogen sulfide production in umbilical stem cells reduces their protective effects during experimental necrotizing enterocolitis. J Pediatr Surg 2019; 54:1168-1173. [PMID: 30879750 PMCID: PMC6545254 DOI: 10.1016/j.jpedsurg.2019.02.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 02/21/2019] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Umbilical mesenchymal stem cells (USC) have been shown to reduce illness in animal models of necrotizing enterocolitis (NEC), possibly through the paracrine release of hydrogen sulfide (H2S). We hypothesized that animals treated with USCs with inhibited H2S synthesis would exhibit more severe disease. METHODS NEC was induced in five-day-old mouse pups by formula feeding and hypoxic and hypothermic stress. Experimental groups received intraperitoneal injection of either saline vehicle or 80,000cells/gram of one of the following cell types: USC, USCs with negative-control siRNA, or USCs with targeted siRNA inhibition of the H2S-producing enzymes. Pups were monitored by clinical assessment and after euthanasia, intestine and lung histologic injury were scored. Tissue was homogenized, and concentrations of IL-6, IL-10, and VEGF were determined by ELISA. For statistical analysis, p<0.05 was considered significant. RESULTS Animals treated with negative-control siRNA USCs were significantly improved compared to vehicle. Clinical sickness scores as well as intestinal and lung histologic injury scores in the targeted siRNA groups were significantly worse when compared to the negative-control siRNA group. IL-6, IL-10, and VEGF had varying patterns of expression in the different groups. CONCLUSION Inhibition of H2S production in USCs reduces the beneficial effects of these cells during therapy in experimental NEC. LEVEL OF EVIDENCE Animal studies are typically described as "foundational evidence" without a true level assigned. TYPE OF STUDY Animal Study.
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Affiliation(s)
- Natalie A Drucker
- Department of Surgery, Section of Pediatric Surgery, Riley Hospital for Children at Indiana University Health, Indianapolis, IN; The Indiana University School of Medicine, Indianapolis, Indianapolis, IN.
| | - Jan P Te Winkel
- Department of Surgery, Section of Pediatric Surgery, Riley Hospital for Children at Indiana University Health, Indianapolis, IN; The Indiana University School of Medicine, Indianapolis, Indianapolis, IN
| | - W Christopher Shelley
- Department of Surgery, Section of Pediatric Surgery, Riley Hospital for Children at Indiana University Health, Indianapolis, IN
| | - Kenneth R Olson
- The Indiana University School of Medicine, South Bend, South Bend, IN
| | - Troy A Markel
- Department of Surgery, Section of Pediatric Surgery, Riley Hospital for Children at Indiana University Health, Indianapolis, IN; The Indiana University School of Medicine, Indianapolis, Indianapolis, IN
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Ren G, Yuan X, Zhao X, Hao Q, Cao J, Wang Y, Gao Q, Dou J, Zeng Q. Characterization and evolution of intestine injury at the anhepatic phase in portal hypertensive rats. Exp Ther Med 2018; 16:4765-4771. [PMID: 30542431 DOI: 10.3892/etm.2018.6800] [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] [Received: 10/18/2017] [Accepted: 02/02/2018] [Indexed: 12/26/2022] Open
Abstract
The aim of the present study was to investigate the characteristics and progression of intestinal injury at the anhepatic phase in portal hypertensive rats. A total of 120 healthy male Wistar rats were purchased, with 15 rats in the normal control group and 105 rats were assigned to establish a prehepatic portal hypertension model. The 105 model rats were further divided into seven treatment groups following ischemia-reperfusion. Meanwhile, portal vein pressure, the area of lower esophageal mucosal vein, endotoxin levels in portal vein blood and the level of malondialdehyde (MDA) and superoxide dismutase (SOD) were measured. Morphology changes of the intestine were observed using optical microscopy and transmission electron microscopy. A portal hypertension rat model was successfully established. Furthermore, endotoxin, MDA and SOD level reached a peak at 12-24 h following reperfusion and then decreased gradually to normal levels at 1 week following reperfusion. However, cytological damage did not recover to preoperative level within 1 week. These findings suggest that intestinal injury was most severe within 12-24 h following ischemia-reperfusion and most indicators recovered to almost normal levels. Therefore, further study on the intestinal mucosal damage is required, with the aim to reduce the production of intestinal endotoxin.
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Affiliation(s)
- Guijun Ren
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Xiaoye Yuan
- Department of Gerontology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Xin Zhao
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Qingchun Hao
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Jinglin Cao
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Yang Wang
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Qingjun Gao
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Jian Dou
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Qiang Zeng
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
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Drucker NA, Jensen AR, Te Winkel JP, Markel TA. Hydrogen Sulfide Donor GYY4137 Acts Through Endothelial Nitric Oxide to Protect Intestine in Murine Models of Necrotizing Enterocolitis and Intestinal Ischemia. J Surg Res 2018; 234:294-302. [PMID: 30527488 DOI: 10.1016/j.jss.2018.08.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 08/01/2018] [Accepted: 08/24/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Necrotizing enterocolitis (NEC) in premature infants is often a devastating surgical condition with poor outcomes. GYY4137 is a long-acting donor of hydrogen sulfide, a gasotransmitter that is protective against intestinal injury in experimental NEC, likely through protection against injury secondary to ischemia. We hypothesized that administration of GYY4137 would improve mesenteric perfusion, reduce intestinal injury, and reduce inflammatory responses in experimental NEC and ischemia-reperfusion injury, and that these benefits would be mediated through endothelial nitric oxide synthase-dependent pathways. METHODS NEC was induced in C57BL/6 wild-type (WT) and endothelial nitric oxide synthase (eNOS) knockout (eNOSKO) pups via maternal separation, formula feeding, enteral lipopolysaccharide, and intermittent hypoxic and hypothermic stress. Pups received daily intraperitoneal injections of 50 mg/kg GYY4137 or phosphate buffered saline vehicle. In separate groups, adult male WT and eNOSKO mice underwent superior mesenteric artery occlusion for 60 min. Before abdominal closure, 50 mg/kg GYY4137 or phosphate buffered saline vehicle was administered into the peritoneal cavity. Laser doppler imaging was used to assess mesenteric perfusion of pups at baseline and on postnatal day 9, and the adult mice at baseline and 24 h after ischemic insult. After euthanasia, the terminal ileum of each animal was fixed, paraffin embedded, sectioned, and stained with hematoxylin and eosin. Sections were blindly graded using published injury scores. Intestinal tissue was homogenized and cytokines measured by ELISA. Data were compared using Mann-Whitney U test, and P-values <0.05 were significant. RESULTS After NEC and ischemia reperfusion (I/R) injury, GYY4137 improved perfusion in WT mice compared to vehicle, but this effect was lost in the eNOSKO animals. Histologic injury followed a similar pattern with reduced intestinal injury in WT mice treated with GYY4137, and no significant improvement in the eNOSKO group. Cytokine expression after GYY4137 administration was altered by the ablation of eNOS in both NEC and I/R injury groups, with significant differences noted in Interleukin 6 and vascular endothelial growth factor. CONCLUSIONS GYY4137, a long-acting donor of hydrogen sulfide, has potential as a therapeutic compound for NEC. It improves mesenteric perfusion and intestinal injury in experimental NEC and intestinal I/R injury, and these benefits appear to be mediated through eNOS-dependent pathways.
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Affiliation(s)
- Natalie A Drucker
- Department of Surgery, Section of Pediatric Surgery, Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana; Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Amanda R Jensen
- Department of Surgery, Section of Pediatric Surgery, Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana; Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jan P Te Winkel
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Troy A Markel
- Department of Surgery, Section of Pediatric Surgery, Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana; Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana.
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20
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Jensen AR, Drucker NA, te Winkel JP, Ferkowicz MJ, Markel TA. The route and timing of hydrogen sulfide therapy critically impacts intestinal recovery following ischemia and reperfusion injury. J Pediatr Surg 2018; 53:1111-1117. [PMID: 29622397 PMCID: PMC5994359 DOI: 10.1016/j.jpedsurg.2018.02.072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 02/27/2018] [Indexed: 01/16/2023]
Abstract
PURPOSE Hydrogen sulfide (H2S) has many beneficial properties and may serve as a novel treatment in patients suffering from intestinal ischemia-reperfusion injury (I/R). The purpose of this study was to examine the method of delivery and timing of administration of H2S for intestinal therapy during ischemic injury. We hypothesized that 1) route of administration of hydrogen sulfide would impact intestinal recovery following acute mesenteric ischemia and 2) preischemic H2S conditioning using the optimal mode of administration as determined above would provide superior protection compared to postischemic application. METHODS Male C57BL/6J mice underwent intestinal ischemia by temporary occlusion of the superior mesenteric artery. Following ischemia, animals were treated according to one of the following (N=6 per group): intraperitoneal or intravenous injection of GYY4137 (H2S-releasing donor, 50mg/kg in PBS), vehicle, inhalation of oxygen only, inhalation of 80ppm hydrogen sulfide gas. Following 24-h recovery, perfusion was assessed via laser Doppler imaging, and animals were euthanized. Perfusion and histology data were assessed, and terminal ileum samples were analyzed for cytokine production following ischemia. Once the optimal route of administration was determined, preischemic conditioning with H2S was undertaken using that route of administration. All data were analyzed using Mann-Whitney. P-values <0.05 were significant. RESULTS Mesenteric perfusion following intestinal I/R was superior in mice treated with intraperitoneal (IP) GYY4137 (IP vehicle: 25.6±6.0 vs. IP GYY4137: 79.7±15.1; p=0.02) or intravenous (IV) GYY4137 (IV vehicle: 36.3±5.9 vs. IV GYY4137: 100.7±34.0; p=0.03). This benefit was not observed with inhaled H2S gas (O2 vehicle: 66.6±11.4 vs. H2S gas: 81.8±6.0; p=0.31). However, histological architecture was only preserved with intraperitoneal administration of GYY4127 (IP vehicle: 3.4±0.4 vs. IP GYY4137: 2±0.3; p=0.02). Additionally, IP GYY4137 allowed for significant attenuation of inflammatory chemokine production of IL-6, IP-10 and MIP-2. We then analyzed whether there was a difference between pre- and postischemic administration of IP GYY4137. We found that preconditioning of animals with intraperitoneal GYY4137 only added minor improvements in outcomes compared to postischemic application. CONCLUSION Therapeutic benefits of H2S are superior with intraperitoneal application of an H2S donor compared to other administration routes. Additionally, while intraperitoneal treatment in both the pre- and postischemic period is beneficial, preischemic application of an H2S donor was found to be slightly better. Further studies are needed to examine long term outcomes and further mechanisms of action prior to widespread clinical application. TYPE OF STUDY Basic science. LEVEL OF EVIDENCE N/A.
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Affiliation(s)
- Amanda R. Jensen
- Department of Surgery, Section of Pediatric Surgery,The Indiana University School of Medicine Indianapolis, IN
| | - Natalie A. Drucker
- Department of Surgery, Section of Pediatric Surgery,The Indiana University School of Medicine Indianapolis, IN
| | - Jan P. te Winkel
- Department of Surgery, Section of Pediatric Surgery,The Indiana University School of Medicine Indianapolis, IN
| | - Michael J. Ferkowicz
- Department of Surgery, Section of Pediatric Surgery,The Indiana University School of Medicine Indianapolis, IN
| | - Troy A. Markel
- Department of Surgery, Section of Pediatric Surgery,Riley Hospital for Children at Indiana University Health,The Indiana University School of Medicine Indianapolis, IN
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Human Adipose Stromal Cells Increase Survival and Mesenteric Perfusion Following Intestinal Ischemia and Reperfusion Injury. Shock 2018; 46:75-82. [PMID: 26796571 DOI: 10.1097/shk.0000000000000571] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Intestinal ischemia can quickly escalate to bowel necrosis and perforation. Transplantation of stem cells presents a novel treatment modality for this problem. We hypothesized that: human adipose-derived stromal cells (hASCs) would increase survival and mesenteric perfusion to a greater degree compared with differentiated cellular controls following ischemic intestinal injury, and improved outcomes with hASC therapy would be associated with preservation of intestinal histological and tight junction architecture, and lower levels of systemic inflammation following intestinal injury. METHODS hASCs and keratinocytes (differentiated cellular control) were cultured on polystyrene flasks at 37°C in 5% CO2 in air. Adult male C57Bl6J mice were anesthetized and a midline laparotomy performed. The intestines were eviscerated, the small bowel mesenteric root identified, and intestinal ischemia was established by temporarily occluding the superior mesenteric artery for 60 min with a noncrushing vascular clamp. Following ischemia, the clamp was removed, and the intestines were returned to the abdominal cavity. Before abdominal closure, 2 million hASCs or keratinocytes in 250 μL of phosphate-buffered saline (carrier for cells and control solution) were infused into the peritoneum. Animals were allowed to recover for 12 or 24 h (perfusion, histology, cytokine, and immunofluoresence studies), or 7 days (survival studies). Intestinal perfusion was assessed by laser Doppler imaging. Intestinal tissue segments were stained with hematoxylin and eosin, as well as antibodies for the tight junction protein claudin-1. Separate aliquots of intestine, liver, and lung tissue were homogenized and assessed for inflammatory cytokines via multiplex beaded assay. RESULTS Animals administered hASCs following intestinal ischemia and reperfusion (I/R) injury had significantly greater 7-day survival and better postischemic recovery of mesenteric perfusion compared with vehicle or keratinocyte therapy. hASCs also abated intestinal mucosal destruction, facilitated preservation of intestinal tight junctions, and decreased the systemic inflammatory response to injury. CONCLUSIONS Human adipose-derived stromal cells improved survival and mesenteric perfusion and attenuated the mucosal damage associated with intestinal I/R injury. hASCs should be considered as a plausible cell source for novel cellular treatment plans following intestinal ischemia.
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Jensen AR, Drucker NA, Ferkowicz MJ, Markel TA. Umbilical mesenchymal stromal cells provide intestinal protection through nitric oxide dependent pathways. J Surg Res 2017; 224:148-155. [PMID: 29506832 DOI: 10.1016/j.jss.2017.11.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/31/2017] [Accepted: 11/29/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Umbilical-derived mesenchymal stromal cells (USCs) have shown promise in the protection of ischemic organs. We hypothesized that USCs would improve mesenteric perfusion, preserve intestinal histological architecture, and limit inflammation by nitric oxide-dependent mechanisms following intestinal ischemia/reperfusion (IR) injury. METHODS Adult wild-type C57BL/6J (WT) and endothelial nitric oxide synthase knock out (eNOS KO) mice were used: (1) WT IR + vehicle, (2) WT IR + USC, (3) eNOS KO IR + vehicle, and (4) eNOS KO IR + USC. Mice were anesthetized, and a midline laparotomy was performed. The superior mesenteric artery was clamped with a nonoccluding clamp for 60-min. Following IR, mice were treated with an injection of 250 μL phosphate buffered saline or 2 × 106 USCs suspended in 250-μL phosphate buffered saline solution. Mesenteric perfusion images were acquired using laser Doppler imaging. Perfusion was analyzed as a percentage of baseline. At 24 h, mice were euthanized, and intestines were harvested. Intestines were evaluated for injury, and data were analyzed using the Mann-Whitney or Kruskal-Wallis tests. RESULTS Intestinal mesenteric perfusion was significantly improved in WT mice treated with USC therapy compared with eNOS KOs. Intestinal histological architecture was preserved with USC therapy in WT mice. However, in eNOS KO mice, this benefit was abolished. Finally, the presence of several cytokines and growth factors were significantly improved in WT mice compared with eNOS KO mice treated with USCs. CONCLUSIONS The benefits of USC-mediated therapy following intestinal IR injury likely occur via nitric oxide-dependent pathways. Further studies are required to define the molecular mechanisms by which USCs activate endothelial nitric oxide synthase to bring about their protective effects.
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Affiliation(s)
- Amanda R Jensen
- Section of Pediatric Surgery, Department of Surgery, Indianapolis, Indiana; The Indiana University School of Medicine, Indianapolis, Indiana
| | - Natalie A Drucker
- Section of Pediatric Surgery, Department of Surgery, Indianapolis, Indiana; The Indiana University School of Medicine, Indianapolis, Indiana
| | - Michael J Ferkowicz
- Section of Pediatric Surgery, Department of Surgery, Indianapolis, Indiana; The Indiana University School of Medicine, Indianapolis, Indiana
| | - Troy A Markel
- Section of Pediatric Surgery, Department of Surgery, Indianapolis, Indiana; The Indiana University School of Medicine, Indianapolis, Indiana; Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana.
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Wang HX, Gao XW, Ren B, Cai Y, Li WJ, Yang YL, Li YJ. Comparative analysis of different feeder layers with 3T3 fibroblasts for culturing rabbits limbal stem cells. Int J Ophthalmol 2017; 10:1021-1027. [PMID: 28730101 DOI: 10.18240/ijo.2017.07.01] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 03/31/2017] [Indexed: 02/08/2023] Open
Abstract
AIM To explore the possibility of human umbilical cord mesenchymal stem cells (hUCMSCs), human umbilical vein endothelial cells (hUVECs), human dental pulp stem cells (hDPSCs) and human periodontal ligament stem cells (hPDLSCs) serving as feeder cells in co-culture systems for the cultivation of limbal stem cells. METHODS Different feeder layers were cultured in Dulbecco's modified Eagle's medium (DMEM)/F12 and were treated with mitomycin C. Rabbits limbal stem cells (LSCs) were co-cultured on hUCMSCs, hUVECs, hDPSCs, hPDLSCs and NIH-3T3, and then comparative analysis were made between each group to see their respective colony-forming efficiency (CFE) assay and immunofluorescence (IPO13,CK3/12). RESULTS The efficiency of the four type cells in supporting the LSCs morphology and its cellular differentiation was similar to that of NIH-3T3 fibroblasts as demonstrated by the immunostaining properties analysis, with each group exhibiting a similar strong expression pattern of IPO13, but lacking CK3 and CK12 expression in terms of immunostaining. But hUCMSCs, hDPSCs and hPDLSCs feeder layers were superior in promoting colony formation potential of cells when compared to hUVECs and feeder-cell-free culture. CONCLUSION hUCMSCs, hDPSCs and hPDLSCs can be a suitable alternative to conventional mouse NIH-3T3 feeder cells, so that risk of zoonotic infection can be diminished.
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Affiliation(s)
- Hui-Xian Wang
- Medical College of Shihezi University, Shihezi 832000, Xinjiang Uygur Autonomous Region, China.,Ophthalmic Center, No.474 Hospital of Chinese PLA, Urumqi 830013, Xinjiang Uygur Autonomous Region, China
| | - Xiao-Wei Gao
- Ophthalmic Center, No.474 Hospital of Chinese PLA, Urumqi 830013, Xinjiang Uygur Autonomous Region, China
| | - Bing Ren
- Ophthalmic Center, No.474 Hospital of Chinese PLA, Urumqi 830013, Xinjiang Uygur Autonomous Region, China
| | - Yan Cai
- Ophthalmic Center, No.474 Hospital of Chinese PLA, Urumqi 830013, Xinjiang Uygur Autonomous Region, China
| | - Wen-Jing Li
- Ophthalmic Center, No.474 Hospital of Chinese PLA, Urumqi 830013, Xinjiang Uygur Autonomous Region, China
| | - Yu-Li Yang
- Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Yi-Jian Li
- Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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Martens A, Ordies S, Vanaudenaerde BM, Verleden SE, Vos R, Van Raemdonck DE, Verleden GM, Roobrouck VD, Claes S, Schols D, Verbeken E, Verfaillie CM, Neyrinck AP. Immunoregulatory effects of multipotent adult progenitor cells in a porcine ex vivo lung perfusion model. Stem Cell Res Ther 2017; 8:159. [PMID: 28676074 PMCID: PMC5497348 DOI: 10.1186/s13287-017-0603-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 05/19/2017] [Accepted: 06/05/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Primary graft dysfunction (PGD) is considered to be the end result of an inflammatory response targeting the new lung allograft after transplant. Previous research has indicated that MAPC cell therapy might attenuate this injury by its paracrine effects on the pro-/anti-inflammatory balance. This study aims to investigate the immunoregulatory capacities of MAPC cells in PGD when administered in the airways. METHODS Lungs of domestic pigs (n = 6/group) were subjected to 90 minutes of warm ischemia. Lungs were cold flushed, cannulated on ice and placed on EVLP for 6 hours. At the start of EVLP, 40 ml of an albumin-plasmalyte mixture was distributed in the airways (CONTR group). In the MAPC cell group, 150 million MAPC cells (ReGenesys/Athersys, Cleveland, OH, USA) were added to this mixture. At the end of EVLP, a physiological evaluation (pulmonary vascular resistance, lung compliance, PaO2/FiO2), wet-to-dry weight ratio (W/D) sampling and a multiplex analysis of bronchoalveolar lavage (BAL) (2 × 30 ml) was performed. RESULTS Pulmonary vascular resistance, lung compliance, PaO2/FiO2 and W/D were not statistically different at the end of EVLP between both groups. BAL neutrophilia was significantly reduced in the MAPC cell group. Moreover, there was a significant decrease in TNF-α, IL-1β and IFN-γ in the BAL, but not in IFN-α; whereas IL-4, IL-10 and IL-8 were below the detection limit. CONCLUSIONS Although no physiologic effect of MAPC cell distribution in the airways was detected during EVLP, we observed a reduction in pro-inflammatory cytokines and neutrophils in BAL in the MAPC cell group. This effect on the innate immune system might play an important role in critically modifying the process of PGD after transplantation. Further experiments will have to elucidate the immunoregulatory effect of MAPC cell administration on graft function after transplantation.
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Affiliation(s)
- An Martens
- Laboratory of Anesthesiology and Algology, Department of Cardiovascular Sciences, Katholieke Universiteit Leuven and University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Sofie Ordies
- Laboratory of Anesthesiology and Algology, Department of Cardiovascular Sciences, Katholieke Universiteit Leuven and University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Bart M. Vanaudenaerde
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
- Laboratory of Pneumology, Department of Clinical and Experimental Medicine, Lung Transplant Unit, Katholieke Universiteit Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Stijn E. Verleden
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
- Laboratory of Pneumology, Department of Clinical and Experimental Medicine, Lung Transplant Unit, Katholieke Universiteit Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Robin Vos
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
- Laboratory of Pneumology, Department of Clinical and Experimental Medicine, Lung Transplant Unit, Katholieke Universiteit Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Dirk E. Van Raemdonck
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
- Laboratory of Experimental Thoracic Surgery, Department of Clinical and Experimental Medicine, Katholieke Universiteit Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Geert M. Verleden
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
- Laboratory of Pneumology, Department of Clinical and Experimental Medicine, Lung Transplant Unit, Katholieke Universiteit Leuven and University Hospitals Leuven, Leuven, Belgium
| | | | - Sandra Claes
- Laboratory of Virology and Chemotherapy (Rega Institute), Department of Microbiology and Immunology, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Dominique Schols
- Laboratory of Virology and Chemotherapy (Rega Institute), Department of Microbiology and Immunology, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Eric Verbeken
- Department of Histopathology, University Hospitals Leuven, Leuven, Belgium
| | - Catherine M. Verfaillie
- Stem Cell Institute Leuven, Department of Development and Regeneration, KU Leuven-University of Leuven, Leuven, Belgium
| | - Arne P. Neyrinck
- Laboratory of Anesthesiology and Algology, Department of Cardiovascular Sciences, Katholieke Universiteit Leuven and University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
- Leuven Lung Transplant Unit, Katholieke Universiteit Leuven, Leuven, Belgium
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Dothel G, Raschi E, Rimondini R, De Ponti F. Mesenchymal stromal cell-based therapy: Regulatory and translational aspects in gastroenterology. World J Gastroenterol 2016; 22:9057-9068. [PMID: 27895395 PMCID: PMC5107589 DOI: 10.3748/wjg.v22.i41.9057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/09/2016] [Accepted: 10/19/2016] [Indexed: 02/06/2023] Open
Abstract
The past decade has witnessed an outstanding scientific production focused towards the possible clinical applications of mesenchymal stromal cells (MSCs) in autoimmune and chronic inflammatory diseases. This raised the need of novel standards to adequately address quality, efficacy and safety issues of this advanced therapy. The development of a streamlined regulation is currently hampered by the complexity of analyzing dynamic biological entities rather than chemicals. Although numerous pieces of evidence show efficacy in reducing intestinal inflammation, some inconsistencies between the mechanisms of action of rodent vs human MSCs suggest caution before assigning translational value to preclinical studies. Preliminary evidence from clinical trials showed efficacy of MSCs in the treatment of fistulizing Crohn’s disease (CD), and preparations of heterologous MSCs for CD treatment are currently tested in ongoing clinical trials. However, safety issues, especially in long-term treatment, still require solid clinical data. In this regard, standardized guidelines for appropriate dosing and methods of infusion could enhance the likelihood to predict more accurately the number of responders and the duration of remission periods. In addition, elucidating MSC mechanisms of action could lead to novel and more reliable formulations such as those derived from the MSCs themselves (e.g., supernatants).
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Doster DL, Jensen AR, Khaneki S, Markel TA. Mesenchymal stromal cell therapy for the treatment of intestinal ischemia: Defining the optimal cell isolate for maximum therapeutic benefit. Cytotherapy 2016; 18:1457-1470. [PMID: 27745788 DOI: 10.1016/j.jcyt.2016.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/16/2016] [Accepted: 08/02/2016] [Indexed: 02/06/2023]
Abstract
Intestinal ischemia is a devastating intraabdominal emergency that often necessitates surgical intervention. Mortality rates can be high, and patients who survive often have significant long-term morbidity. The implementation of traditional medical therapies to prevent or treat intestinal ischemia have been sparse over the last decade, and therefore, the use of novel therapies are becoming more prevalent. Cellular therapy using mesenchymal stromal cells is one such treatment modality that is attracting noteworthy attention in the scientific community. Several groups have seen benefit with cellular therapy, but the optimal cell line has not been identified. The purpose of this review is to: 1) Review the mechanism of intestinal ischemia and reperfusion injury, 2) Identify the mechanisms of how cellular therapy may be therapeutic for this disease, and 3) Compare various MSC tissue sources to maximize potential therapeutic efficacy in the treatment of intestinal I/R diseases.
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Affiliation(s)
- Dominique L Doster
- Department of Surgery, Indiana University Health, Indianapolis, IN, USA; The Indiana University School of Medicine, Indianapolis, IN, USA
| | - Amanda R Jensen
- Department of Surgery, Indiana University Health, Indianapolis, IN, USA; The Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sina Khaneki
- Department of Surgery, Indiana University Health, Indianapolis, IN, USA; The Indiana University School of Medicine, Indianapolis, IN, USA
| | - Troy A Markel
- Department of Surgery, Indiana University Health, Indianapolis, IN, USA; The Indiana University School of Medicine, Indianapolis, IN, USA; Section of Pediatric Surgery, Indiana University Health, Indianapolis, IN, USA; Riley Hospital for Children, Indiana University Health, Indianapolis, IN, USA.
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Jensen AR, Manning MM, Khaneki S, Drucker NA, Markel TA. Harvest tissue source does not alter the protective power of stromal cell therapy after intestinal ischemia and reperfusion injury. J Surg Res 2016; 204:361-370. [PMID: 27565072 DOI: 10.1016/j.jss.2016.05.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Revised: 04/29/2016] [Accepted: 05/03/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Transplantation of mesenchymal stromal cells (MSCs) may be a novel treatment for intestinal ischemia. The optimal stromal cell source that could yield maximal protection after injury, however, has not been identified. We hypothesized that (1) MSCs would increase survival and mesenteric perfusion, preserve intestinal histologic architecture, and limit inflammation after intestinal ischemia and reperfusion (I/R) injury, and (2) MSCs harvested from different sources of tissue would have equivalent protective properties to the intestine after I/R inury. METHODS Adult male mice were anesthetized, and a midline laparotomy was performed. The intestines were eviscerated, the small bowel mesenteric root was identified, and baseline intestinal perfusion was determined using laser Doppler imaging. Intestinal ischemia was established by temporarily occluding the superior mesenteric artery for 60 min with a noncrushing clamp. After ischemia, the clamp was removed and the intestines were allowed to recover. Before abdominal closure, 2 × 10(6) human umbilical cord-derived MSCs, bone marrow-derived MSCs, or keratinocytes in 250 μL of phosphate-buffered saline vehicle were injected into the peritoneum. Animals were allowed to recover for 12 or 24 h (perfusion, histology, and inflammatory studies) or 7 d (survival studies). Survival data was analyzed using the log-rank test. Perfusion was expressed as a percentage of the baseline, and 12- and 24-h data was analyzed using one-way analysis of variance and the Student t-test. Nonparametric data was compared using the Mann-Whitney U-test. A P value of <0.05 was considered statistically significant. RESULTS All MSCs increased 7-d survival after I/R injury and were superior to vehicle and keratinocytes (P < 0.05). All MSCs increased mesenteric perfusion more than vehicle at 12 and 24 h after injury (P < 0.05). All MSCs provided superior perfusion compared with keratinocytes at 24 h after injury (P < 0.05). Administration of each MSC line improved intestinal histology after I/R injury (P < 0.05). Multiple proinflammatory chemokines were downregulated after the application of MSCs, suggesting a decreased inflammatory response after MSC therapy. CONCLUSIONS Transplantation of MSCs after intestinal I/R injury, irrespective of a tissue source, significantly increases survival and mesenteric perfusion and at the same time limits intestinal damage and inflammation. Further studies are needed to identify the mechanism that these cells use to promote improved outcomes after injury.
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Affiliation(s)
- Amanda R Jensen
- Department of Surgery, Section of Pediatric Surgery, Indianapolis, Indiana; Indiana University School of Medicine, Indianapolis, Indiana
| | - Morenci M Manning
- Department of Surgery, Section of Pediatric Surgery, Indianapolis, Indiana; Indiana University School of Medicine, Indianapolis, Indiana
| | - Sina Khaneki
- Department of Surgery, Section of Pediatric Surgery, Indianapolis, Indiana
| | - Natalie A Drucker
- Department of Surgery, Section of Pediatric Surgery, Indianapolis, Indiana; Indiana University School of Medicine, Indianapolis, Indiana
| | - Troy A Markel
- Department of Surgery, Section of Pediatric Surgery, Indianapolis, Indiana; Indiana University School of Medicine, Indianapolis, Indiana; Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana.
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Therapeutic Potentials of Enteric Nerve Activation with Vagus Nerve Stimulation. J Am Coll Surg 2016; 222:103-5. [PMID: 26721757 DOI: 10.1016/j.jamcollsurg.2015.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 10/15/2015] [Indexed: 11/23/2022]
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