Effect of Stem Cell Treatment on Acute Liver Failure Model Using Scaffold.
Dig Dis Sci
; 64(3): 781-791, 2019 03.
Article
in En
| MEDLINE
| ID: mdl-30421375
ABSTRACT
BACKGROUND:
Injecting MSCs via blood vessel is most commonly used method, which has a major drawback of safety. The aim of our study was to evaluate efficacy using scaffold-loaded MSCs in acute liver failure model.METHOD:
Acute liver failure was induced in mice using thioacetamide (TAA) (200 mg/kg, i.p) once a day for two consecutive days. The animals were divided in four acute liver failure groups (1) TAA; (2) empty scaffold; (3) MSCs injected through tail vein; (4) MSC + Scaffold, scaffold loaded with MSCs, to evaluate the mortality and changes in liver function. Polylactic-co-glycolic acid scaffold alone and loaded with human MSCs was implanted on mice dorsum.RESULTS:
TAA dose was titrated until one-third mortality rate was achieved. TAA (200 mg/kg) once daily for two consecutive days was injected to establish the acute liver failure model. The mortality of TAA and scaffold groups was 55.9% and 63.2%, respectively. Although, mortality of MSC-TV group decreased 14.7% as compared to TAA group (p = 0.200), MSC + Scaffold group had the lowest mortality (31.4%) (p = 0.013). Cells implanted in PLGA biomaterial were survived until 3 weeks, and their function was increased. Area of hepatic inflammation and necrosis was significantly reduced in MSC-TV and MSC + Scaffold groups; but there was no difference between the two groups. Gene expressions related to inflammation were significantly decreased in MSC-TV and MSC + Scaffold groups compared to TAA group. In MSC + Scaffold group, no migration of stem cells to liver tissue was observed. Although, not all cells in scaffold were stained, some of them were differentiated into hepatocyte-like cells which stained positive for PAS and CYP2E1 antibody.CONCLUSION:
Scaffold loaded with MSCs showed protective effects via paracrine signaling on acute liver failure model.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Liver Failure, Acute
/
Mesenchymal Stem Cell Transplantation
/
Tissue Scaffolds
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Chemical and Drug Induced Liver Injury
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Mesenchymal Stem Cells
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Polylactic Acid-Polyglycolic Acid Copolymer
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Liver
/
Liver Regeneration
Type of study:
Etiology_studies
Limits:
Animals
/
Humans
Language:
En
Journal:
Dig Dis Sci
Year:
2019
Document type:
Article