Amelioration of diabetes in nonobese diabetic mice with advanced disease by linomide-induced immunoregulation combined with Reg protein treatment

David J. Gross, Lola Weiss, Israel Reibstein, Joop Van Den Brand, Hiroshi Okamoto, Anne Clark, Shimon Slavin

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Oral linomide, (quinoline-3-carboxamide), has been shown to prevent autoimmune insulitis, islet destruction, and diabetes in NOD mice treated at an early stage of the disease, but confers only partial protection in animals with advanced disease. Reg protein, the gene product of a complementary DNA isolated from a regenerating rat islet library, has been previously shown to induce expansion of β-cell mass in pancreatectomized rats. To determine the effect of treatment combining immunomodulation and Reg protein on advanced autoimmune diabetes, we treated female NOD mice with oral linomide and ip Reg protein injections. In 14-week-old animals with less severe disease (glucose tolerant), treatment with each agent alone resulted in amelioration of diabetes, as did treatment with Reg alone in 5-week-old prediabetic mice. In 14-week-old animals with more severe disease (glucose intolerant), only treatment with the combination of both agents, but not that with each separately, resulted in amelioration of diabetes. Our study suggests that treatment aimed at abrogation of autoimmunity combined with expansion of β- cell mass constitutes a potential therapeutic approach for treatment of insulin-dependent diabetes mellitus.

Original languageEnglish
Pages (from-to)2369-2374
Number of pages6
JournalEndocrinology
Volume139
Issue number5
DOIs
Publication statusPublished - 1998 Jan 1

ASJC Scopus subject areas

  • Endocrinology

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