Targeting the T‑cell membrane type-1 matrix metalloproteinase‑CD44 axis in a transferred type 1 diabetes model in NOD mice

  • Authors:
    • Alexei Y. Savinov
    • Alex Y. Strongin
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  • Published online on: November 20, 2012     https://doi.org/10.3892/etm.2012.821
  • Pages: 438-442
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Abstract

This study tested the hypothesis that membrane‑tethered type‑1 matrix metalloproteinase (MT1-MMP)-induced proteolysis of T cell CD44 is important for defining the migration and function of autoreactive T cells, including diabetogenic, insulin-specific and Kd-restricted IS-CD8+ cells. To confirm the importance of MT1-MMP proteolysis of CD44 in type 1 diabetes (T1D), the anti-diabetic effects of three MMP inhibitors (3(S)-2,2-dimethyl-4[4-pyridin-4-yloxy-benzenesulfonyl]-thiomorpholine-3-carboxylic acid hydroxamate [AG3340], 2-(4-phenoxyphenylsulfonylmethyl)thiirane [SB-3CT] and epigallocatechin-3-gallate [EGCG]) were compared using an adoptive diabetes transfer model in non-obese diabetic (NOD) mice. Only AG3340 was capable of inhibiting both the activity of MT1-MMP and the shedding of CD44 in T cells; and the transendothelial migration and homing of IS-CD8+ T cells into the pancreatic islets. SB-3CT and EGCG were incapable of inhibiting T cell MT1-MMP efficiently. As a result, AG3340 alone, but not SB-3CT or EGCG, delayed the onset of transferred diabetes in NOD mice. In summary, the results of the present study emphasize that the MT1-MMP-CD44 axis has a unique involvement in T1D development. Accordingly, we suggest that a potent small‑molecule MT1-MMP antagonist is required for the design of novel therapies for T1D.
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February 2013
Volume 5 Issue 2

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Savinov AY and Savinov AY: Targeting the T‑cell membrane type-1 matrix metalloproteinase‑CD44 axis in a transferred type 1 diabetes model in NOD mice. Exp Ther Med 5: 438-442, 2013
APA
Savinov, A.Y., & Savinov, A.Y. (2013). Targeting the T‑cell membrane type-1 matrix metalloproteinase‑CD44 axis in a transferred type 1 diabetes model in NOD mice. Experimental and Therapeutic Medicine, 5, 438-442. https://doi.org/10.3892/etm.2012.821
MLA
Savinov, A. Y., Strongin, A. Y."Targeting the T‑cell membrane type-1 matrix metalloproteinase‑CD44 axis in a transferred type 1 diabetes model in NOD mice". Experimental and Therapeutic Medicine 5.2 (2013): 438-442.
Chicago
Savinov, A. Y., Strongin, A. Y."Targeting the T‑cell membrane type-1 matrix metalloproteinase‑CD44 axis in a transferred type 1 diabetes model in NOD mice". Experimental and Therapeutic Medicine 5, no. 2 (2013): 438-442. https://doi.org/10.3892/etm.2012.821