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Addition of rapamycin to anti-CD3 antibody improves long-term glycaemia control in diabetic NOD mice. 2013

Shira Perl, and Jordan Perlman, and R P Weitzel, and Oswald Phang, and Matthew M Hsieh, and John Tisdale
Center for Human Immunology, NHLBI, NIH, Bethesda, Maryland, United States of America. perls@nhlbi.nih.gov

OBJECTIVE Non-Fc-binding Anti CD3 antibody has proven successful in reverting diabetes in the non-obese diabetes mouse model of type 1 diabetes and limited efficacy has been observed in human clinical trials. We hypothesized that addition of rapamycin, an mTOR inhibitor capable of inducing operational tolerance in allogeneic bone marrow transplantation, would result in improved diabetes reversal rates and overall glycemia. METHODS Seventy hyperglycemic non-obese diabetic mice were randomized to either a single injection of anti CD3 alone or a single injection of anti CD3 followed by 14 days of intra-peritoneal rapamycin. Mice were monitored for hyperglycemia and metabolic control. RESULTS Mice treated with the combination of anti CD3 and rapamycin had similar rates of diabetes reversal compared to anti CD3 alone (25/35 vs. 22/35). Mice treated with anti CD3 plus rapamycin had a significant improvement in glycemia control as exhibited by lower blood glucose levels in response to an intra-peritoneal glucose challenge; average peak blood glucose levels 30 min post intra-peritoneal injection of 2 gr/kg glucose were 6.9 mmol/L in the anti CD3 plus rapamycin group vs. 10 mmo/L in the anti CD3 alone (P<0.05). CONCLUSIONS The addition of rapamycin to anti CD3 results in significant improvement in glycaemia control in diabetic NOD mice.

UI MeSH Term Description Entries
D003921 Diabetes Mellitus, Experimental Diabetes mellitus induced experimentally by administration of various diabetogenic agents or by PANCREATECTOMY. Alloxan Diabetes,Streptozocin Diabetes,Streptozotocin Diabetes,Experimental Diabetes Mellitus,Diabete, Streptozocin,Diabetes, Alloxan,Diabetes, Streptozocin,Diabetes, Streptozotocin,Streptozocin Diabete
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006943 Hyperglycemia Abnormally high BLOOD GLUCOSE level. Postprandial Hyperglycemia,Hyperglycemia, Postprandial,Hyperglycemias,Hyperglycemias, Postprandial,Postprandial Hyperglycemias
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000906 Antibodies Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
D016688 Mice, Inbred NOD A strain of non-obese diabetic mice developed in Japan that has been widely studied as a model for T-cell-dependent autoimmune insulin-dependent diabetes mellitus in which insulitis is a major histopathologic feature, and in which genetic susceptibility is strongly MHC-linked. Non-Obese Diabetic Mice,Mice, NOD,Mouse, Inbred NOD,Mouse, NOD,Non-Obese Diabetic Mouse,Nonobese Diabetic Mice,Nonobese Diabetic Mouse,Diabetic Mice, Non-Obese,Diabetic Mice, Nonobese,Diabetic Mouse, Non-Obese,Diabetic Mouse, Nonobese,Inbred NOD Mice,Inbred NOD Mouse,Mice, Non-Obese Diabetic,Mice, Nonobese Diabetic,Mouse, Non-Obese Diabetic,Mouse, Nonobese Diabetic,NOD Mice,NOD Mice, Inbred,NOD Mouse,NOD Mouse, Inbred,Non Obese Diabetic Mice,Non Obese Diabetic Mouse
D017252 CD3 Complex Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). The CD3 complex includes the gamma, delta, epsilon, zeta, and eta chains (subunits). When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA). Antigens, CD3,CD3 Antigens,T3 Antigens,CD3 Antigen,T3 Antigen,T3 Complex,Antigen, CD3,Antigen, T3,Antigens, T3
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D020123 Sirolimus A macrolide compound obtained from Streptomyces hygroscopicus that acts by selectively blocking the transcriptional activation of cytokines thereby inhibiting cytokine production. It is bioactive only when bound to IMMUNOPHILINS. Sirolimus is a potent immunosuppressant and possesses both antifungal and antineoplastic properties. Rapamycin,AY 22-989,I-2190A,Rapamune,AY 22 989,AY 22989,I 2190A,I2190A

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