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Frusciante MR, Signori MF, Parmeggiani B, Grings M, Pramio J, Cecatto C, de Andrade Silveira J, Aubin MR, Santos LA, Paz AH, Wajner M, Leipnitz G. Disruption of Bioenergetics in the Intestine of Wistar Rats Caused by Hydrogen Sulfide and Thiosulfate: A Potential Mechanism of Chronic Hemorrhagic Diarrhea in Ethylmalonic Encephalopathy. Cell Biochem Biophys 2023; 81:683-695. [PMID: 37589888 DOI: 10.1007/s12013-023-01161-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2023] [Indexed: 08/18/2023]
Abstract
Ethylmalonic encephalopathy (EE) is a severe inherited metabolic disorder that causes tissue accumulation of hydrogen sulfide (sulfide) and thiosulfate in patients. Although symptoms are predominantly neurological, chronic hemorrhagic diarrhea associated with intestinal mucosa abnormalities is also commonly observed. Considering that the pathophysiology of intestinal alterations in EE is virtually unknown and that sulfide and thiosulfate are highly reactive molecules, the effects of these metabolites were investigated on bioenergetic production and transfer in the intestine of rats. We observed that sulfide reduced NADH- and FADH2-linked mitochondrial respiration in the intestine, which was avoided by reduced glutathione (GSH) but not by melatonin. Thiosulfate did not change respiration. Moreover, both metabolites markedly reduced the activity of total, cytosolic and mitochondrial isoforms of creatine kinase (CK) in rat intestine. Noteworthy, the addition of GSH but not melatonin, apocynin, and Trolox (hydrosoluble vitamin E) prevented the change in the activities of total CK and its isoforms caused by sulfide and thiosulfate, suggesting a direct protein modification on CK structure by these metabolites. Sulfide further increased thiol content in the intestine, suggesting a modulation in the redox state of these groups. Finally, sulfide and thiosulfate decreased the viability of Caco-2 intestinal cells. Our data suggest that bioenergetic impairment caused by sulfide and thiosulfate is a mechanism involved in the gastrointestinal abnormalities found in EE.
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Affiliation(s)
- Marina Rocha Frusciante
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
| | - Marian Flores Signori
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
| | - Belisa Parmeggiani
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
| | - Mateus Grings
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
| | - Julia Pramio
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
| | - Cristiane Cecatto
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
| | - Josyane de Andrade Silveira
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
| | - Mariana Rauback Aubin
- Programa de Pós-Graduação em Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 500 Sarmento Leite Street, Porto Alegre, RS, 90035-190, Brazil
- Laboratório de Células, Tecidos e Genes - Centro de Pesquisa Experimental, HCPA, Porto Alegre, RS, Brazil
| | - Larissa Aguiar Santos
- Programa de Pós-Graduação em Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 500 Sarmento Leite Street, Porto Alegre, RS, 90035-190, Brazil
- Laboratório de Células, Tecidos e Genes - Centro de Pesquisa Experimental, HCPA, Porto Alegre, RS, Brazil
| | - Ana Helena Paz
- Programa de Pós-Graduação em Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 500 Sarmento Leite Street, Porto Alegre, RS, 90035-190, Brazil
- Laboratório de Células, Tecidos e Genes - Centro de Pesquisa Experimental, HCPA, Porto Alegre, RS, Brazil
| | - Moacir Wajner
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil
- Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, 2350 Ramiro Barcelos Street, Porto Alegre, RS, 90035-903, Brazil
| | - Guilhian Leipnitz
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil.
- Programa de Pós-Graduação em Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 500 Sarmento Leite Street, Porto Alegre, RS, 90035-190, Brazil.
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos Street-Attached, Porto Alegre, RS, 90035-003, Brazil.
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Silveira AK, Gomes HM, Fröhlich NT, Possa L, Santos L, Kessler F, Martins A, Rodrigues MS, De Oliveira J, do Nascimento ND, Sirena D, Paz AH, Gelain DP, Moreira JCF. Sodium Butyrate Protects Against Intestinal Oxidative Damage and Neuroinflammation in the Prefrontal Cortex of Ulcerative Colitis Mice Model. Immunol Invest 2023; 52:796-814. [PMID: 37665564 DOI: 10.1080/08820139.2023.2244967] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Inflammatory bowel diseases (IBD) cause increased inflammatory signalling and oxidative damage. IBDs are correlated with an increased incidence of brain-related disorders suggesting that the gut-brain-axis exerts a pivotal role in IBD. Butyrate is one of the main microbial metabolites in the colon, and it can cross the blood-brain barrier, directly affecting the brain. We induced ulcerative colitis (UC) in mice utilizing dextran sodium sulfate (DSS) in the drinking water for 7 days. Animals were divided into four groups, receiving water or DSS and treated with saline or 0,066 g/kg of Sodium Butyrate for 7 days. We also used an integrative approach, combining bioinformatics functional network and experimental strategies to understand how butyrate may affect UC. Butyrate was able to attenuate colitis severity and intestinal inflammation. Butyrate protected the colon against oxidative damage in UC and protected the prefrontal cortex from neuroinflammation observed in DSS group. Immunocontent of tight junction proteins Claudin-5 and Occludin were reduced in colon of DSS group mice and butyrate was able to restore to control levels. Occludin and Claudin-5 decrease in DSS group indicate that an intestinal barrier disruption may lead to the increased influx of gut-derived molecules, causing neuroinflammation in the prefrontal cortex, observed by increased IBA-1 marker. The probable protection mechanism of butyrate treatment occurs through NRF2 through Nrf2 and HIF-1α activation and consequent activation of catalase and superoxide dismutase. Our data suggest that systemic inflammation associated with intestinal barrier disruption in UC leads to neuroinflammation in the prefrontal cortex, which was atenuated by butyrate.
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Affiliation(s)
- Alexandre Kleber Silveira
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Henrique Mautone Gomes
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Nicole Thais Fröhlich
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Luana Possa
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Lucas Santos
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Flávio Kessler
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Alberto Martins
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Matheus Scarpatto Rodrigues
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Jade De Oliveira
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Natália Duarte do Nascimento
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Dienifer Sirena
- Hospital de Clinicas de Porto Alegre (HCPA), Clinics Hospital of Porto Alegre, Porto Alegre, Brazil
| | - Ana Helena Paz
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - Daniel Pens Gelain
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
| | - José Cláudio Fonseca Moreira
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Federal University of Rio Grande Do Sul (UFRGS) Avenida, Porto Alegre, Brazil
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Nunes RR, Tassinari ID, Zang J, Galvan Andrade MK, Machado Colucci AC, Müller Hoff ML, De Oliveira MR, Paz AH, de Fraga LS. Therapeutic hypothermia is limited in preventing developmental impairments after neonatal hypoxia-ischemia. Dev Neurosci 2023:000534919. [PMID: 37906982 DOI: 10.1159/000534919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 10/25/2023] [Indexed: 11/02/2023] Open
Abstract
The only current treatment for neonatal hypoxia-ischemia (HI) is therapeutic hypothermia (TH), which still shows some limitations. Specific effects of TH in the several processes involved in brain injury progression remain unclear. In this study, the effects of TH treatment on developmental parameters, behavioral outcomes, and peripheral leukocytes were evaluated in neonatal male and female rats. In P7, animals were submitted to right common carotid artery occlusion followed by hypoxia (8% oxygen). TH was performed by reducing the animal scalp temperature to 32°C for 5 h. Behavioral parameters and developmental landmarks were evaluated. Animals were euthanized at P9 or P21, and cerebral hemispheres, spleen, and thymus were weighed. White blood cells (WBC) were counted in blood smears. There was a reduction in the weight of the brain hemisphere ipsilateral to the carotid occlusion in HI and TH groups, as well as a reduction in body weight gain and a delay in the opening of the ipsilateral eye. Latency in negative geotaxis was increased by HI at P12. TH did not prevent brain weight loss, developmental impairments, or WBC number changes but prevented negative geotaxis impairment and spleen weight reduction. These data reinforce that a better understanding of the events that occur after HI and TH in both males and females is necessary and would allow the development of more adequate and sex-specific therapeutic approaches.
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Serafini MA, Sirena DH, da Silveira ABT, Franco-da-Silva M, Aubin MR, Garcez TNA, Araújo A, dos Santos Pereira F, Hoogduijn MJ, da Costa Gonçalves F, Paz AH. Mesenchymal stromal cell-derived membrane particles: A novel cell-free therapy for inflammatory bowel diseases. Int Immunopharmacol 2023; 118:110076. [PMID: 37030123 DOI: 10.1016/j.intimp.2023.110076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/02/2023] [Accepted: 03/21/2023] [Indexed: 04/08/2023]
Abstract
Inflammatory bowel diseases (IBD), including ulcerative colitis, are chronic and idiopathic inflammations of the gastrointestinal tract. A disruption of the epithelial barrier and an imbalance between Th1 and Th2 subsets are associated with the onset and progression of these diseases. Mesenchymal stromal cells (MSC) are a promising therapy for IBD. However, cell-tracking studies have shown that intravenously infused MSC localize to the lungs and present short-term survival. To reduce practical complexities arising from living cells, we generated membrane particles (MP) from MSC membranes, which possess some of the immunomodulatory properties of MSC. This study investigated the effect of MSC-derived MP and conditioned media (CM) as cell-free therapies in the dextran sulfate sodium (DSS)-induced colitis model. Acute colitis was induced in C57BL/6 mice by oral administration of 2% DSS in drinking water ad libitum from days 0 to 7. Mice were treated with MP, CM, or living MSC on days 2 and 5. Our findings revealed that MP, CM, and living MSC ameliorated DSS-induced colitis by reducing colonic inflammation, the loss of colonic goblet cells, and intestinal mucosa permeability, preventing apoptosis of damaged colonic cells and balancing Th1 and Th2 activity. Therefore, MSC-derived MP have high therapeutic potential for treating IBD, overcoming the deficiencies of living MSC therapy, and opening novel frontiers in inflammatory diseases medicine.
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Zang J, Colucci ACM, D’Ávila Tassinari I, Nunes RR, Andrade MKG, Spies FF, de Oliveira MR, Durán‐Carabali LE, Rigon P, Netto CA, Paz AH, de Fraga LS. Short‐Term Effects of Therapeutic Hypothermia Following Hypoxia‐Ischemia in Neonatal Male and Female Rats. Int J Dev Neurosci 2022; 83:165-177. [PMID: 36453268 DOI: 10.1002/jdn.10244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 11/05/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022] Open
Abstract
Nowadays, the only treatment for human babies suffering from hypoxia-ischemia (HI) is therapeutic hypothermia (TH). However, a better understanding of the specific effects of TH in males and females is important to improve its clinical application. The present study evaluated the short-term effects of TH on the brain injury and behavioral outcomes in male and female neonatal rats submitted to neonatal HI. Seven-day-old Wistar rats underwent a surgery for unilateral occlusion of the right common carotid artery and were exposed to a hypoxic atmosphere (8% oxygen) for 75 min. Then, the animals in the TH group were submitted to TH (scalp temperature of 32°C) for 5 h. In the behavioral tests, no remarkable differences triggered by HI or TH were observed relative to SHAM animals. Only females of the HI group presented lower latency to complete the righting reflex test. TH reduced the volume of brain injury in males, but not in females. The animals of the HI group showed a reduction in the number of neurons in the CA1 and dentate gyrus (DG) regions of the hippocampus and TH partially prevented neuronal death. In the CA1 region of the hippocampus, animals from the HI group showed more degenerating cells relative to the SHAM, which was reversed by TH. In the DG, animals from the HI group showed an increase in the number of degenerating neurons, which was partially reversed by TH only in males. Our data show that HI leads to a brain injury, which was attenuated by TH in a sex-dependent way and clarify the importance of the assessment of males and females in order to outline specific strategies for the treatment of each sex in newborns suffering from HI.
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Affiliation(s)
- Janaína Zang
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA) Porto Alegre Brazil
| | - Anna Clara Machado Colucci
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Isadora D’Ávila Tassinari
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA) Porto Alegre Brazil
| | - Ricardo Ribeiro Nunes
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA) Porto Alegre Brazil
| | - Mirella Kielek Galvan Andrade
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Francielle Fernandes Spies
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Maikel Rosa de Oliveira
- Department of Morphological Sciences Institute of Basic Health Sciences, Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Luz Elena Durán‐Carabali
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Paula Rigon
- Department of Morphological Sciences Institute of Basic Health Sciences, Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Carlos Alexandre Netto
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Department of Biochemistry Institute of Basic Health Sciences, Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Ana Helena Paz
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Department of Morphological Sciences Institute of Basic Health Sciences, Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA) Porto Alegre Brazil
| | - Luciano Stürmer de Fraga
- Postgraduate Program in Biological Sciences: Physiology Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Department of Physiology Institute of Basic Health Sciences, Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA) Porto Alegre Brazil
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Dalmolin SP, Pedó RT, da Rosa TH, de Souza Silva JM, Farinon M, Gasparini ML, Chiela ECF, Paz AH, Sehabiague MPC, Ferreira HB, do Espírito Santo RC, da Costa Gonçalves F, Xavier RM. Fasciola hepatica extract suppresses fibroblast-like synoviocytes in vitro and alleviates experimental arthritis. Adv Rheumatol 2022; 62:43. [PMID: 36371346 DOI: 10.1186/s42358-022-00275-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 10/29/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by synovial inflammation, fibroblast-like synoviocytes (FLS) activation and joint destruction. Fasciola hepatica is a platyhelminth that releases excretory-secretory immunomodulatory products capable of suppressing the Th1 immune response. Despite the effectiveness of available treatments for inducing disease remission, current options are not successful in all patients and may cause side effects. Thus, we evaluated the therapeutic potential of F. hepatica extract on FLS from RA patients and arthritis models. METHODS FLS were isolated from synovial fluid of RA patients, cultured, and exposed to F. hepatica extract (60, 80, and 100 µg/ml) for different time points to assess cell viability, adherence, migration and invasion. For in vivo experiments, mice with antigen (AIA) and collagen (CIA) induced arthritis received a 200 µg/dose of F. hepatica extract daily. Statistical analysis was performed by ANOVA and Student's t-test using GraphPad Prism 6.0. RESULTS In vitro assays showed that extract decreased FLS cell viability at concentration of 100 µg/ml (83.8% ± 5.0 extract vs. 100.0% ± 0.0 control; p < 0.05), adherence in 20% (92.0 cells ± 5.8 extract vs. 116.3 cells ± 7.9 control; p < 0.05), migratory potential (69.5% ± 17.6 extract vs. 100.0% control; p < 0.05), and cell invasiveness potential through the matrigel (76.0% ± 8.4 extract vs. 100.0% control; p < 0.01). The extract reduced leukocyte migration by 56% (40 × 104 leukocytes/knee ± 19.00) compared to control (90.90 × 104 leukocytes/knee ± 12.90) (p < 0.01) and nociception (6.37 g ± 0.99 extract vs. 3.81 g ± 1.44 control; p < 0.001) in AIA and delayed clinical onset of CIA (11.75 ± 2.96 extract vs. 14.00 ± 2.56 control; p = 0.126). CONCLUSION Our results point out a potential immunomodulatory effect of F. hepatica extract in RA models. Therefore, the characterization of promising new immunomodulatory molecules should be pursued, as they can promote the development of new therapies. Trial registration Collection of synovial liquid and in vitro procedures were approved by the Ethics Committee with Certificate of Presentation of Ethical Appreciation in Plataforma Brasil (CAAE: 89044918.8.0000.5327; date of registration: 26/07/2018).
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Affiliation(s)
- Suelen Pizzolatto Dalmolin
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Renata Ternus Pedó
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Thales Hein da Rosa
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Jordana Miranda de Souza Silva
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Mirian Farinon
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Maria Luísa Gasparini
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Eduardo Cremonese Filippi Chiela
- Programa de Pós-Graduação Ciências em Gastroenterologia e Hepatologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Departamento de Ciências Morfológicas, ICBS, Serviço de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Centro de Pesquisas Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Ana Helena Paz
- Programa de Pós-Graduação Ciências em Gastroenterologia e Hepatologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Departamento de Ciências Morfológicas, ICBS, Serviço de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Centro de Pesquisas Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Martín Pablo Cancela Sehabiague
- Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Henrique Bunselmeyer Ferreira
- Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Rafaela Cavalheiro do Espírito Santo
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fabiany da Costa Gonçalves
- Department of Internal Medicine, Nephrology and Transplantation, Erasmus Medical Center, GD 3015, Rotterdam, The Netherlands.
| | - Ricardo Machado Xavier
- Laboratório de Doenças Autoimunes, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil. .,Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. .,Serviço de Reumatologia, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350; 6º Andar, Porto Alegre, RS, 90035-903, Brazil.
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Sant'Ana AN, Araújo AB, Gonçalves FDC, Paz AH. Effects of living and metabolically inactive mesenchymal stromal cells and their derivatives on monocytes and macrophages. World J Stem Cells 2021; 13:1160-1176. [PMID: 34630856 PMCID: PMC8474715 DOI: 10.4252/wjsc.v13.i9.1160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/01/2021] [Accepted: 09/03/2021] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stromal cells (MSCs) are multipotent and self-renewing stem cells that have great potential as cell therapy for autoimmune and inflammatory disorders, as well as for other clinical conditions, due to their immunoregulatory and regenerative properties. MSCs modulate the inflammatory milieu by releasing soluble factors and acting through cell-to-cell mechanisms. MSCs switch the classical inflammatory status of monocytes and macrophages towards a non-classical and anti-inflammatory phenotype. This is characterized by an increased secretion of anti-inflammatory cytokines, a decreased release of pro-inflammatory cytokines, and changes in the expression of cell membrane molecules and in metabolic pathways. The MSC modulation of monocyte and macrophage phenotypes seems to be critical for therapy effectiveness in several disease models, since when these cells are depleted, no immunoregulatory effects are observed. Here, we review the effects of living MSCs (metabolically active cells) and metabolically inactive MSCs (dead cells that lost metabolic activity by induced inactivation) and their derivatives (extracellular vesicles, soluble factors, extracts, and microparticles) on the profile of macrophages and monocytes and the implications for immunoregulatory and reparative processes. This review includes mechanisms of action exhibited in these different therapeutic approaches, which induce the anti-inflammatory properties of monocytes and macrophages. Finally, we overview several possibilities of therapeutic applications of these cells and their derivatives, with results regarding monocytes and macrophages in animal model studies and some clinical trials.
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Affiliation(s)
- Alexia Nedel Sant'Ana
- Laboratório de Células Tecidos e Genes, Hospital de Clínicas de Porto Alegre, Porto Alegre 90035-903, RS, Brazil
| | - Anelise Bergmann Araújo
- Centro de Processamento Celular, Hospital de Clínicas de Porto Alegre, Porto Alegre 90035-903, RS, Brazil
| | | | - Ana Helena Paz
- Laboratório de Células Tecidos e Genes, Hospital de Clínicas de Porto Alegre, Porto Alegre 90035-903, RS, Brazil
- Departamento de Ciências Morfológicas, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035-903, RS, Brazil
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da Costa Gonçalves F, Paz AH. Cell membrane and bioactive factors derived from mesenchymal stromal cells: Cell-free based therapy for inflammatory bowel diseases. World J Stem Cells 2019; 11:618-633. [PMID: 31616539 PMCID: PMC6789183 DOI: 10.4252/wjsc.v11.i9.618] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/23/2019] [Accepted: 07/16/2019] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel diseases (IBD) are chronic inflammatory disorders of the gastrointestinal tract associated with multifactorial conditions such as ulcerative colitis and Crohn’s disease. Although the underlying mechanisms of IBD remain unclear, growing evidence has shown that dysregulated immune system reactions in genetically susceptible individuals contribute to mucosal inflammation. However, conventional treatments have been effective in inducing remission of IBD but not in preventing the relapse of them. In this way, mesenchymal stromal cells (MSC) therapy has been recognized as a promising treatment for IBD due to their immunomodulatory properties, ability to differentiate into several tissues, and homing to inflammatory sites. Even so, literature is conflicted regarding the location and persistence of MSC in the body after transplantation. For this reason, recent studies have focused on the paracrine effect of the biofactors secreted by MSC, especially in relation to the immunomodulatory potential of soluble factors (cytokines, chemokines, and growth factors) and extracellular vehicles that are involved in cell communication and in the transfer of cellular material, such as proteins, lipids, and nucleic acids. Moreover, treatment with interferon-γ, tumor necrosis factor-α, and interleukin-1β causes MSC to express immunomodulatory molecules that mediate the suppression via cell-contact dependent mechanisms. Taken together, we present an overview of the role of bioactive factors and cell membrane proteins derived from MSC as a cell-free therapy that can improve IBD treatment.
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Affiliation(s)
- Fabiany da Costa Gonçalves
- Nephrology and Transplantation, Internal Medicine, Erasmus Medical Center, Rotterdam, GD 3015, Netherlands
| | - Ana Helena Paz
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS 90035-903, Brazil
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Nunes NS, Chandran P, Sundby M, Visioli F, da Costa Gonçalves F, Burks SR, Paz AH, Frank JA. Therapeutic ultrasound attenuates DSS-induced colitis through the cholinergic anti-inflammatory pathway. EBioMedicine 2019; 45:495-510. [PMID: 31253515 PMCID: PMC6642284 DOI: 10.1016/j.ebiom.2019.06.033] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/05/2019] [Accepted: 06/18/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Ulcerative Colitis (UC) is an Inflammatory Bowel Disease (IBD) characterized by uncontrolled immune response, diarrhoea, weight loss and bloody stools, where sustained remission is not currently achievable. Dextran Sulphate Sodium (DSS)-induced colitis is an animal model that closely mimics human UC. Ultrasound (US) has been shown to prevent experimental acute kidney injury through vagus nerve (VN) stimulation and activation of the cholinergic anti-inflammatory pathway (CAIP). Since IBD patients may present dysfunctional VN activity, our aim was to determine the effects of therapeutic ultrasound (TUS) in DSS-induced colitis. METHODS Acute colitis was induced by 2% DSS in drinking water for 7 days and TUS was administered to the abdominal area for 7 min/day from days 4-10. Clinical symptoms were analysed, and biological samples were collected for proteomics, macroscopic and microscopic analysis, flow cytometry and immunohistochemistry. FINDINGS TUS attenuated colitis by reducing clinical scores, colon shortening and histological damage, inducing proteomic tolerogenic response in the gut during the injury phase and early recovery of experimental colitis. TUS did not improve clinical and pathological outcomes in splenectomised mice, while α7nAChR (α7 nicotinic acetylcholine receptor - indicator of CAIP involvement) knockout animals presented with disease worsening. Increased levels of colonic F4/80+α7nAChR+ macrophages in wild type mice suggest CAIP activation. INTERPRETATION These results indicate TUS improved DSS-induced colitis through stimulation of the splenic nerve along with possible contribution by VN with CAIP activation. FUND: Intramural Research Programs of the Clinical Centre, the National Institute of Biomedical Imaging and Bioengineering at the NIH and CAPES/Brazil.
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Affiliation(s)
- Natalia Schneider Nunes
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Centre, NIH, Bethesda, MD, United States; Gastroenterology and Hepatology Sciences Graduate Program, UFRGS, Porto Alegre, RS, Brazil.
| | - Parwathy Chandran
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Centre, NIH, Bethesda, MD, United States
| | - Maggie Sundby
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Centre, NIH, Bethesda, MD, United States
| | - Fernanda Visioli
- Faculty of Dentistry, Oral Pathology, UFRGS, Porto Alegre, RS, Brazil
| | | | - Scott Robert Burks
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Centre, NIH, Bethesda, MD, United States
| | - Ana Helena Paz
- Gastroenterology and Hepatology Sciences Graduate Program, UFRGS, Porto Alegre, RS, Brazil
| | - Joseph Alan Frank
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Centre, NIH, Bethesda, MD, United States; National Institute of Biomedical Imaging and Bioengineering, NIH, Bethesda, MD, United States
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10
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Scarabelot VL, de Oliveira C, Medeiros LF, de Macedo IC, Cioato SG, Adachi LNS, Paz AH, de Souza A, Caumo W, Torres ILS. Transcranial direct-current stimulation reduces nociceptive behaviour in an orofacial pain model. J Oral Rehabil 2018; 46:40-50. [PMID: 30281821 DOI: 10.1111/joor.12726] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Transcranial direct-current stimulation (tDCS) is a noninvasive method of brain stimulation suggested as a therapeutic tool for pain and is related to the reversal of maladaptive plasticity associated with chronic pain. OBJECTIVES This study investigated the effect of tDCS, a non-pharmacological therapy, on local mechanical hyperalgesia, and remote thermal hyperalgesia in rats submitted to orofacial inflammatory pain model, by facial von Frey and hot plate tests, respectively. In addition, we evaluated levels of BDNF, NGF, IL-10 and IL-6 in the brainstem and blood serum of these animals at 24 hours and 7 days after the end of tDCS treatment. METHODS Rats were subjected to temporomandibular joint pain and treated with tDCS. The animals were divided into control, pain and pain + treatment groups. Mechanical and thermal hyperalgesia were evaluated at baseline, 7 days after administration of complete Freund's adjuvant, and immediately, 24 hours, and 7 days after the tDCS treatment. Neuroimmunomodulators levels were determined by ELISA. Statistical analyses were performed by (GEE)/Bonferroni (behavioural tests), three-way ANOVA/SNK (neurochemical tests) and Kruskal-Wallis (histological analysis). RESULTS Transcranial direct-current stimulation reduced mechanical and thermal hyperalgesia (P < 0.01). We observed interaction between factors (pain and treatment) increasing brainstem BDNF (P < 0.01) and NGF (P < 0.05) levels. Furthermore, we found an increase in IL-6 and IL-10 levels in the brainstem at 24 hours and 7 days after tDCS, respectively. CONCLUSION We showed that tDCS reduces thermal and mechanical hyperalgesia induced by orofacial pain until 7 days after treatment. These findings demonstrate that tDCS was effective in the control of orofacial inflammatory pain.
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Affiliation(s)
- Vanessa L Scarabelot
- Post-Graduate Program in Biological Sciences: Physiology, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Carla de Oliveira
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Liciane F Medeiros
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Isabel C de Macedo
- Post-Graduate Program in Biological Sciences: Physiology, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Stefania G Cioato
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Lauren Naomi S Adachi
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Ana Helena Paz
- Morphological Sciences Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Andressa de Souza
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Wolnei Caumo
- Department of Surgery in Medical School, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Iraci L S Torres
- Post-Graduate Program in Biological Sciences: Physiology, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Pain Pharmacology and Neuromodulation: Pre-clinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
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Nunes NS, Kim S, Sundby M, Chandran P, Burks SR, Paz AH, Frank JA. Temporal clinical, proteomic, histological and cellular immune responses of dextran sulfate sodium-induced acute colitis. World J Gastroenterol 2018; 24:4341-4355. [PMID: 30344419 PMCID: PMC6189848 DOI: 10.3748/wjg.v24.i38.4341] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/06/2018] [Accepted: 08/24/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the temporal clinical, proteomic, histological and cellular immune profiles of dextran sulfate sodium (DSS)-induced acute colitis.
METHODS Acute colitis was induced in C57Bl/6 female mice by administration of 1%, 2% or 3% DSS in drinking water for 7 d. Animals were monitored daily for weight loss, stool consistency and blood in the stool, while spleens and colons were harvested on day 8. A time course analysis was performed in mice ingesting 3% DSS, which included colon proteomics through multiplex assay, colon histological scoring by a blinded investigator, and immune response through flow cytometry or immunohistochemistry of the spleen, mesenteric lymph node and colon.
RESULTS Progressive worsening of clinical colitis was observed with increasing DSS from 1% to 3%. In mice ingesting 3% DSS, colon shortening and increase in pro-inflammatory factors starting at day 3 was observed, with increased spleen weights at day 6 and day 8. This coincided with cellular infiltration in the colon from day 2 to day 8, with progressive accumulation of macrophages F4/80+, T helper CD4+ (Th), T cytotoxic CD8+ (Tcyt) and T regulatory CD25+ (Treg) cells, and progressive changes in colonic pathology including destruction of crypts, loss of goblet cells and depletion of the epithelial barrier. Starting on day 4, mesenteric lymph node and/or spleen presented with lower levels of Treg, Th and Tcyt cells, suggesting an immune cell tropism to the gut.
CONCLUSION These results demonstrate that the severity of experimental colitis is dependent on DSS concentration, correlated with clinical, proteomic, histological and cellular immune response on 3% DSS.
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Affiliation(s)
- Natalia Schneider Nunes
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States
- Gastroenterology and Hepatology Sciences Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035-093, Brazil
| | - Saejeong Kim
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States
| | - Maggie Sundby
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States
| | - Parwathy Chandran
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States
| | - Scott Robert Burks
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States
| | - Ana Helena Paz
- Gastroenterology and Hepatology Sciences Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035-093, Brazil
| | - Joseph Alan Frank
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States
- National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, United States
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12
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Araújo AB, Furlan JM, Salton GD, Schmalfuss T, Röhsig LM, Silla LMR, Passos EP, Paz AH. Isolation of human mesenchymal stem cells from amnion, chorion, placental decidua and umbilical cord: comparison of four enzymatic protocols. Biotechnol Lett 2018; 40:989-998. [PMID: 29619744 DOI: 10.1007/s10529-018-2546-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/27/2018] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To compare four enzymatic protocols for mesenchymal stem cells (MSCs) isolation from amniotic (A-MSC) and chorionic (C-MSC) membranes, umbilical cord (UC-MSC) and placental decidua (D-MSC) in order to define a robust, practical and low-cost protocol for each tissue. RESULTS A-MSCs and UC-MSCs could be isolated from all samples using trypsin/collagenase-based protocols; C-MSCs could be isolated from all samples with collagenase- and trypsin/collagenase-based protocols; D-MSCs were isolated from all samples exclusively with a collagenase-based protocol. CONCLUSIONS The trypsin-only protocol was least efficient; the collagenase-only protocol was best for C-MSCs and D-MSCs; the combination of trypsin and collagenase was best for UC-MSCs and none of tested protocols was adequate for A-MSCs isolation.
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Affiliation(s)
- A B Araújo
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil. .,Federal University of Rio Grande do Sul, Porto Alegre, Brazil. .,Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil.
| | - J M Furlan
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - G D Salton
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - T Schmalfuss
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - L M Röhsig
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - L M R Silla
- Cellular Technology and Therapy Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - E P Passos
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - A H Paz
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
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Lorenzi W, Gonçalves FDC, Schneider N, Silva ÉF, Visioli F, Paz AH, Saueressig MG. Repeated systemic administration of adipose tissue-derived mesenchymal stem cells prevents tracheal obliteration in a murine model of bronchiolitis obliterans. Biotechnol Lett 2017; 39:1269-1277. [PMID: 28528427 DOI: 10.1007/s10529-017-2355-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/04/2017] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To investigate the effect of adipose tissue-derived mesenchymal stem cell (ASC) administered either systemically or locally in a murine model of bronchiolitis obliterans. RESULTS When compared to controls, systemic treatment with 106 ASCs on D0 and a second dose on D7 significantly prevented tracheal obliteration 28 days after heterotopic tracheal transplantation (median of 94 vs. 16%; P < 0.01). A single dose tended towards less stenosis than controls, but did not reach statistical significance (28 vs. 94%; P = 0.054). On the contrary, repeated local injection was incapable of preventing tracheal obliteration when compared to a single injection or controls (37 vs. 71 vs. 87%). Two intravenous doses also tended to be better than two local injections (16 vs. 37%; P = 0.058), and were better than a single local dose (16 vs. 71%; P < 0.01). CONCLUSION A second dose of ASC, given systemically after 7 days, reduces luminal obliteration in a heterotopic tracheal transplantation model in mice, suggesting that ASC can be used to prevent obliterative bronchiolitis after lung transplantation.
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Affiliation(s)
- William Lorenzi
- Thoracic Surgery Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Santa Cecília, Porto Alegre, RS, CEP 90035-903, Brazil.
| | - Fabiany Da Costa Gonçalves
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil
| | - Natália Schneider
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil
| | - Éverton Franco Silva
- Thoracic Surgery Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Santa Cecília, Porto Alegre, RS, CEP 90035-903, Brazil
| | - Fernanda Visioli
- Pathology Department, School of Odontology, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2492, Porto Alegre, RS, CEP 90035-007, Brazil
| | - Ana Helena Paz
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil
| | - Mauricio Guidi Saueressig
- Thoracic Surgery Service, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Santa Cecília, Porto Alegre, RS, CEP 90035-903, Brazil
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14
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Araújo AB, Salton GD, Furlan JM, Schneider N, Angeli MH, Laureano ÁM, Silla L, Passos EP, Paz AH. Comparison of human mesenchymal stromal cells from four neonatal tissues: Amniotic membrane, chorionic membrane, placental decidua and umbilical cord. Cytotherapy 2017; 19:577-585. [PMID: 28343898 DOI: 10.1016/j.jcyt.2017.03.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/31/2017] [Accepted: 03/02/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Mesenchymal stromal cells (MSCs) are being investigated as a potential alternative for cellular therapy. This study was designed to compare the biological characteristics of MSCs isolated from amniotic membrane (A-MSCs), chorionic membrane (C-MSCs), placental decidua (D-MSCs) and umbilical cord (UC-MSCs) to ascertain whether any one of these sources is superior to the others for cellular therapy purposes. METHODS MSCs were isolated from amniotic membrane, chorionic membrane, umbilical cord and placental decidua. Immunophenotype, differentiation ability, cell size, cell complexity, polarity index and growth kinetics of MSCs isolated from these four sources were analyzed. RESULTS MSCs were successfully isolated from all four sources. Surface marker profile and differentiation ability were consistent with human MSCs. C-MSCs in suspension were the smallest cells, whereas UC-MSCs presented the greatest length and least width. A-MSCs had the lowest polarity index and UC-MSCs, as more elongated cells, the highest. C-MSCs, D-MSCs and UC-MSCs exhibited similar growth capacity until passage 8 (P8); C-MSCs presented better lifespan, whereas insignificant proliferation was observed in A-MSCs. DISCUSSION Neonatal and maternal tissues can serve as sources of multipotent stem cells. Some characteristics of MSCs obtained from four neonatal tissues were compared and differences were observed. Amniotic membrane was the least useful source of MSCs, whereas chorionic membrane and umbilical cord were considered good options for future use in cell therapy because of the known advantages of immature cells.
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Affiliation(s)
- Anelise Bergmann Araújo
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
| | - Gabrielle Dias Salton
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Juliana Monteiro Furlan
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | | | - Melissa Helena Angeli
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Álvaro Macedo Laureano
- Cellular Technology and Therapy Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Lúcia Silla
- Cellular Technology and Therapy Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | | | - Ana Helena Paz
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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15
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da Costa Gonçalves F, Grings M, Nunes NS, Pinto FO, Garcez TNA, Visioli F, Leipnitz G, Paz AH. Antioxidant properties of mesenchymal stem cells against oxidative stress in a murine model of colitis. Biotechnol Lett 2016; 39:613-622. [PMID: 28032203 DOI: 10.1007/s10529-016-2272-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 12/12/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To investigate the effects of oxidative stress injury in dextran sulfate sodium (DSS)-induced colitis in mice treated with mesenchymal stem cells (MSC). RESULTS Mice exposed to oral administration of 2% DSS over 7 days presented a high disease activity index and an intense colonic inflammation. Systemic infusion of MSC protected from severe colitis, reducing weight loss and diarrhea while lowering the infiltration of inflammatory cells. Moreover, toxic colitis injury increased oxidative stress. Administration of DSS decreased reduced glutathione (GSH) and superoxide dismutase (SOD) activity, and increased thiobarbituric acid-reactive substances levels in the colon. No alteration was found in catalase (CAT) and glutathione peroxidase (GPx) activity. Otherwise, MSC transplantation was able to prevent the decrease of GSH levels and SOD activity suggestive of an antioxidant property of MSC. CONCLUSION The oxidative stress is a pathomechanism underlying the pathophysiology of colitis and MSC play an important role in preventing the impairment of antioxidants defenses in inflamed colon.
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Affiliation(s)
- Fabiany da Costa Gonçalves
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil. .,Graduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, Porto Alegre, RS, CEP 90035-903, Brazil.
| | - Mateus Grings
- Department of Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2600, Porto Alegre, RS, CEP 90035-003, Brazil
| | - Natália Schneider Nunes
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil.,Graduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, Porto Alegre, RS, CEP 90035-903, Brazil
| | - Fernanda Otesbelgue Pinto
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil
| | - Tuane Nerissa Alves Garcez
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil
| | - Fernanda Visioli
- Oral Pathology Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2492, Porto Alegre, RS, CEP 90035-007, Brazil
| | - Guilhian Leipnitz
- Department of Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2600, Porto Alegre, RS, CEP 90035-003, Brazil
| | - Ana Helena Paz
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, Porto Alegre, RS, CEP 90035-903, Brazil.,Graduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, Porto Alegre, RS, CEP 90035-903, Brazil
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Mörschbächer PD, Alves Garcez TN, Paz AH, Magrisso AB, Mello HF, Rolim VM, Neuwald EB, Driemeier D, Contesini EA, Cirne-Lima E. Treatment of dilated cardiomyopathy in rabbits with mesenchymal stem cell transplantation and platelet-rich plasma. Vet J 2015; 209:180-5. [PMID: 26832807 DOI: 10.1016/j.tvjl.2015.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 09/14/2015] [Accepted: 11/15/2015] [Indexed: 12/28/2022]
Abstract
Dilated cardiomyopathy (DCM) is a major cause of cardiovascular mortality and morbidity, and there is evidence to suggest that stem cell transplantation may be a viable treatment option for this condition. Therefore, the goal of the present study was to assess myocardial regeneration in rabbits with doxorubicin-induced DCM treated with adipose mesenchymal stem cells (MSC) alone or in combination with platelet-rich plasma (PRP). Twenty New Zealand rabbits received doxorubicin for the induction of DCM and were divided into four groups according to treatment: saline, MSC, PRP and MSC + RP. Treatment agents were injected directly into the left ventricular myocardium following a thoracoscopy. Rabbits were assessed through echocardiographic and electrocardiographic examinations, as well as serum cardiac troponin I measurements at baseline, after the induction of DCM and 15 days after treatment. Animals were euthanased following the last assessment, and hearts were collected for histopathological analyses. The MSC group showed improvements in all parameters assessed, while the PRP group showed significantly impaired heart function. Histopathology of the heart revealed that the MSC group displayed the lowest number of lesions, while rabbits in the MSC + PRP, saline and PRP groups had steadily advancing lesions. These results suggest that MSC transplantation can improve heart function in rabbits with DCM, and underscore the need for further studies of the effects of PRP on the myocardium.
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Affiliation(s)
- P D Mörschbächer
- Graduate Program in Veterinary Science, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9090, CEP 91540-000 Porto Alegre, Brazil; Laboratory of Embryology, Porto Alegre Clinical Hospital, Porto Alegre, Brazil.
| | - T N Alves Garcez
- Graduate Program in Veterinary Science, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9090, CEP 91540-000 Porto Alegre, Brazil
| | - A H Paz
- Laboratory of Embryology, Porto Alegre Clinical Hospital, Porto Alegre, Brazil
| | - A B Magrisso
- Laboratory of Embryology, Porto Alegre Clinical Hospital, Porto Alegre, Brazil
| | - H F Mello
- Laboratory of Embryology, Porto Alegre Clinical Hospital, Porto Alegre, Brazil
| | - V M Rolim
- Graduate Program in Veterinary Science, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9090, CEP 91540-000 Porto Alegre, Brazil
| | - E B Neuwald
- Graduate Program in Veterinary Science, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9090, CEP 91540-000 Porto Alegre, Brazil
| | - D Driemeier
- Graduate Program in Veterinary Science, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9090, CEP 91540-000 Porto Alegre, Brazil
| | - E A Contesini
- Graduate Program in Veterinary Science, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9090, CEP 91540-000 Porto Alegre, Brazil
| | - E Cirne-Lima
- Graduate Program in Veterinary Science, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9090, CEP 91540-000 Porto Alegre, Brazil; Laboratory of Embryology, Porto Alegre Clinical Hospital, Porto Alegre, Brazil
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17
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Schneider N, Gonçalves FDC, Pinto FO, Lopez PLDC, Araújo AB, Pfaffenseller B, Passos EP, Cirne-Lima EO, Meurer L, Lamers ML, Paz AH. Dexamethasone and azathioprine promote cytoskeletal changes and affect mesenchymal stem cell migratory behavior. PLoS One 2015; 10:e0120538. [PMID: 25756665 PMCID: PMC4355407 DOI: 10.1371/journal.pone.0120538] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 01/23/2015] [Indexed: 12/13/2022] Open
Abstract
Glucocorticoids and immunosuppressive drugs are commonly used to treat inflammatory disorders, such as inflammatory bowel disease (IBD), and despite a few improvements, the remission of IBD is still difficult to maintain. Due to their immunomodulatory properties, mesenchymal stem cells (MSCs) have emerged as regulators of the immune response, and their viability and activation of their migratory properties are essential for successful cell therapy. However, little is known about the effects of immunosuppressant drugs used in IBD treatment on MSC behavior. The aim of this study was to evaluate MSC viability, nuclear morphometry, cell polarity, F-actin and focal adhesion kinase (FAK) distribution, and cell migratory properties in the presence of the immunosuppressive drugs azathioprine (AZA) and dexamethasone (DEX). After an initial characterization, MSCs were treated with DEX (10 μM) or AZA (1 μM) for 24 hrs or 7 days. Neither drug had an effect on cell viability or nuclear morphometry. However, AZA treatment induced a more elongated cell shape, while DEX was associated with a more rounded cell shape (P < 0.05) with a higher presence of ventral actin stress fibers (P < 0.05) and a decrease in protrusion stability. After 7 days of treatment, AZA improved the cell spatial trajectory (ST) and increased the migration speed (24.35%, P < 0.05, n = 4), while DEX impaired ST and migration speed after 24 hrs and 7 days of treatment (-28.69% and -25.37%, respectively; P < 0.05, n = 4). In conclusion, our data suggest that these immunosuppressive drugs each affect MSC morphology and migratory capacity differently, possibly impacting the success of cell therapy.
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Affiliation(s)
- Natália Schneider
- Embryology and Cell Differentiation Laboratory, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
- Graduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Fabiany da Costa Gonçalves
- Embryology and Cell Differentiation Laboratory, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
- Graduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Fernanda Otesbelgue Pinto
- Embryology and Cell Differentiation Laboratory, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Patrícia Luciana da Costa Lopez
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Anelise Bergmann Araújo
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Bianca Pfaffenseller
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Eduardo Pandolfi Passos
- Embryology and Cell Differentiation Laboratory, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Elizabeth Obino Cirne-Lima
- Embryology and Cell Differentiation Laboratory, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Luíse Meurer
- Graduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, CEP 90035-903, Porto Alegre, RS, Brazil
| | - Marcelo Lazzaron Lamers
- Morphological Sciences Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite 500, CEP 90050-170, Porto Alegre, RS, Brazil
| | - Ana Helena Paz
- Embryology and Cell Differentiation Laboratory, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos 2350, CEP 90035-903, Porto Alegre, RS, Brazil
- Graduate Program in Gastroenterology and Hepatology Sciences, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, CEP 90035-903, Porto Alegre, RS, Brazil
- Morphological Sciences Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite 500, CEP 90050-170, Porto Alegre, RS, Brazil
- * E-mail:
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Gonçalves FDC, Schneider N, Pinto FO, Meyer FS, Visioli F, Pfaffenseller B, Lopez PLDC, Passos EP, Cirne-Lima EO, Meurer L, Paz AH. Intravenous vs intraperitoneal mesenchymal stem cells administration: What is the best route for treating experimental colitis? World J Gastroenterol 2014; 20:18228-18239. [PMID: 25561790 PMCID: PMC4277960 DOI: 10.3748/wjg.v20.i48.18228] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 06/28/2014] [Accepted: 08/28/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the therapeutic effects of mesenchymal stem cells (MSCs) transplanted intraperitoneally and intravenously in a murine model of colitis.
METHODS: MSCs were isolated from C57BL/6 mouse adipose tissue. MSC cultures were analyzed according to morphology, cellular differentiation potential, and surface molecular markers. Experimental acute colitis was induced in C57BL/6 mice by oral administration of 2% dextran sulfate sodium (DSS) in drinking water ad libitum from days 0 to 7. Colitis mice were treated with 1 × 106 MSCs via intraperitoneal or intravenous injection on days 2 and 5. The disease activity index was determined daily based on the following parameters: weight loss, stool consistency and presence of blood in the feces and anus. To compare morphological and functional differences in tissue regeneration between different MSC injection modalities, mice were euthanized on day 8, and their colons were examined for length, weight, and histopathological changes. Inflammatory responses were determined by measuring the levels of different serum cytokines using a CBA Th1/Th2/Th17 kit. Apoptotic rates were evaluated by terminal deoxynucleotidyl transferase-mediated dUDP-biotin nick end labeling assay.
RESULTS: Intravenous infusion of MSCs was more effective than intraperitoneal treatment (P < 0.001) in reducing the clinical and histopathologic severity of colitis, which includes weight loss, diarrhea and inflammation. An histological evaluation demonstrated decreased colonic inflammation based on reduced crypt loss and reduced infiltration of inflammatory cells. This therapeutic effect was most likely mediated by the down-regulation of pro-inflammatory cytokines [interleukin (IL)-6 and tumor necrosis factor (TNF)]; and by the up-regulation of anti-inflammatory cytokines (IL-10 and IL-4). Intravenous transplantation also induced high levels of IFN that lead to activation of the immunosuppressive activity of the MSCs, which did not occur with intraperitoneal transplantation (P = 0.006). An increase in apoptotic T cells was observed after intravenous, but not intraperitoneal, MSC infusion, suggesting that MSCs can induce apoptosis in resistant T cells in colonic inflammation (P = 0.027).
CONCLUSION: Our results demonstrate that intravenous treatment is a superior method for reducing colon inflammation compared with intraperitoneal therapy.
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Affiliation(s)
- Tatiana A.B. Bressel
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Hospital de Clínicas de Porto Alegre, Brazil
| | | | | | | | | | - Maria Luiza Saraiva-Pereira
- Hospital de Clínicas de Porto Alegre, Brazil; Hospital de Clínicas de Porto Alegre, Brazil; Universidade Federal do Rio Grande do Sul, Brazil
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