High Dose Versus Low Dose Syngeneic Hepatocyte Transplantation in Pex1-G844D NMRI Mouse Model is Safe but Does Not Achieve Long Term Engraftment
Autor: | Mustapha Najimi, Etienne Sokal, Martin Roumain, Tanguy Demaret, Joachim Ravau, Giulio G. Muccioli, Jonathan Evraerts |
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Rok vydání: | 2020 |
Předmět: |
Male
medicine.medical_specialty PEX1 c.2528G> mouse model medicine.medical_treatment Spleen Liver transplantation Article Mice Hepatocyte transplantation Internal medicine Peroxisomes medicine Animals Humans Zellweger Syndrome lcsh:QH301-705.5 peroxisome biogenesis disorder business.industry Microchimerism PEX1 c.2528G>A General Medicine Peroxisome Phenotype PEX1 p.Gly843Asp Disease Models Animal Zellweger spectrum disorder medicine.anatomical_structure Endocrinology lcsh:Biology (General) Liver Hepatocyte Hepatocytes oxysterols PEX1 business Biomarkers |
Zdroj: | Cells Volume 10 Issue 1 Cells, Vol 10, Iss 40, p 40 (2021) |
ISSN: | 2073-4409 |
DOI: | 10.3390/cells10010040 |
Popis: | Genetic alterations in PEX genes lead to peroxisome biogenesis disorder. In humans, they are associated with Zellweger spectrum disorders (ZSD). No validated treatment has been shown to modify the dismal natural history of ZSD. Liver transplantation (LT) improved clinical and biochemical outcomes in mild ZSD patients. Hepatocyte transplantation (HT), developed to overcome LT limitations, was performed in a mild ZSD 4-year-old child with encouraging short-term results. Here, we evaluated low dose (12.5 million hepatocytes/kg) and high dose (50 million hepatocytes/kg) syngeneic male HT via intrasplenic infusion in the Pex1-G844D NMRI mouse model which recapitulates a mild ZSD phenotype. HT was feasible and safe in growth retarded ZSD mice. Clinical (weight and food intake) and biochemical parameters (very long-chain fatty acids, abnormal bile acids, etc.) were in accordance with ZSD phenotype but they were not robustly modified by HT. As expected, one third of the infused cells were detected in the liver 24 h post-HT. No liver nor spleen microchimerism was detected after 7, 14 and 30 days. Future optimizations are required to improve hepatocyte engraftment in Pex1-G844D NMRI mouse liver. The mouse model exhibited the robustness required for ZSD liver-targeted therapies evaluation. |
Databáze: | OpenAIRE |
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