The efficacy of combining feG and galantide in mild caerulein-induced acute pancreatitis in mice

Savio Barreto, Colin Carati, Ann Schloithe, Ronald Mathison, Joseph Davison, James Toouli, Gino Saccone

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    Abstract

    We have previously shown that galantide ameliorates mild acute pancreatitis (AP), and the salivary tripeptide analogue, feG, ameliorates severe AP in mice. In this study, we compared the efficacy of combining galantide and feG with that of the individual agents in treating mild AP induced in mice with 7-hourly caerulein injections. Galantide was co-administered with each caerulein injection commencing with the first injection. feG was co-administered with the first injection of caerulein as a single intraperitoneal injection. Combination of the agents was also administered. Control animals received galantide, feG, or saline alone. Pancreata were harvested for histological examination and estimation of myeloperoxidase (MPO) activity. Plasma enzyme activities were measured. Galantide significantly reduced AP-induced hyperenzymemia by 41-49%. The combination of galantide and feG significantly reduced AP-induced hyperenzymemia by 39-40%, whereas feG alone was without effect. Plasma enzyme activity in the control groups was comparable with pre-treatment activity. Galantide, feG, and their combination significantly reduced MPO activity by 83, 44 and 74% respectively, and % abnormal acinar cells by 32, 29 and 36% respectively. This study demonstrates for the first time the beneficial effect of feG in mild caerulein-induced AP. Moreover the data indicate that the hyperenzymemia in mild caerulein-induced AP at 12 h possibly reflect a larger secretory component as compared to enzyme release due to neutrophil-mediated acinar cell damage. The effects of the treatment with both peptides indicate a possible role for galantide in modulating neutrophil chemotaxis/activation and supports the hypothesis that galantide may influence neurogenic inflammation in AP.

    Original languageEnglish
    Pages (from-to)1076-1082
    Number of pages7
    JournalPeptides
    Volume31
    Issue number6
    DOIs
    Publication statusPublished - Jun 2010

    Keywords

    • Combination
    • feG
    • Inflammation
    • Tripeptide

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  • Cite this

    Barreto, S., Carati, C., Schloithe, A., Mathison, R., Davison, J., Toouli, J., & Saccone, G. (2010). The efficacy of combining feG and galantide in mild caerulein-induced acute pancreatitis in mice. Peptides, 31(6), 1076-1082. https://doi.org/10.1016/j.peptides.2010.02.027