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Title

Liraglutide, a long-acting human glucagon-like peptide 1 analogue, improves human islet survival in culture

Authors
McCall, Michael
Emamaullee, Juliet
Merani, Shaheed
Davis, Joy
Edgar, Ryan
Pawlick, Rena
Kin, Tatsuya
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Published in Transplant International. 2010, vol. 23, no. 3, p. 259-265
Abstract The culture of human islets is associated with approximately 10-20% islet loss, occasionally preventing transplantation. Preconditioning of the islets to improve postculture yields would be of immediate benefit, with the potential to increase both the number of transplanted patients and their metabolic reserve. In this study, the effect of liraglutide, a long-acting human glucagon-like peptide 1 analogue, on cultured human islets was examined. Culture with liraglutide (1 micromol/l) was associated with a preservation of islet mass (significantly more islets at 24 and 48 h, compared to control; P ≤ 0.05 at 24 and 48 h) and with the presence of larger islets (P ≤ 0.05 at 48 h). These observations were supported by reduced apoptosis rates after 24 h of treatment. We also demonstrated that human islet engraftment is improved in C57Bl/6-RAG(-/-) mice treated with liraglutide 200 microg/kg sc twice daily (P ≤ 0.05), suggesting that liraglutide should be continued after transplantation. Overall, these data demonstrate the beneficial effect of liraglutide on cultured human islets, preserving islet mass. They support the design of clinical studies looking at the effect of liraglutide in clinical islet transplantation.
Keywords AnimalsApoptosis/drug effectsFemaleGlucagon-Like Peptide 1/administration & dosage/ analogs & derivatives/pharmacologyGraft Survival/drug effectsHumansHypoglycemic Agents/administration & dosage/pharmacologyInsulin/metabolismIslets of Langerhans/cytology/ drug effects/metabolismIslets of Langerhans Transplantation/ methodsMaleMiceMice, Inbred C57BLMice, KnockoutMiddle AgedTissue Culture TechniquesTransplantation, Heterologous
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PMID: 19821955
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Research group Transplantation et hépatologie (905)
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TOSO, Christian et al. Liraglutide, a long-acting human glucagon-like peptide 1 analogue, improves human islet survival in culture. In: Transplant International, 2010, vol. 23, n° 3, p. 259-265. https://archive-ouverte.unige.ch/unige:21344

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Deposited on : 2012-05-23

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