Identification of a cytotoxic form of dimeric interleukin-2 in murine tissues

2Citations
Citations of this article
11Readers
Mendeley users who have this article in their library.

Abstract

Interleukin-2 (IL-2) is a multi-faceted cytokine, known for promoting proliferation, survival, and cell death depending on the cell type and state. For example, IL-2 facilitates cell death only in activated T cells when antigen and IL-2 are abundant. The availability of IL-2 clearly impacts this process. Our laboratory recently demonstrated that IL-2 is retained in blood vessels by heparan sulfate, and that biologically active IL-2 is released from vessel tissue by heparanase. We now demonstrate that heparanase digestion also releases a dimeric form of IL-2 that is highly cytotoxic to cells expressing the IL-2 receptor. These cells include "traditional" IL-2 receptor-bearing cells such as lymphocytes, as well as those less well known for IL-2 receptor expression, such as epithelial and smooth muscle cells. The morphologic changes and rapid cell death induced by dimeric IL-2 imply that cell death is mediated by disruption of membrane permeability and subsequent necrosis. These findings suggest that IL-2 has a direct and unexpectedly broad influence on cellular homeostatic mechanisms in both immune and non-immune systems. © 2014 Wrenshall et al.

Cite

CITATION STYLE

APA

Wrenshall, L. E., Clabaugh, S. E., Cool, D. R., Arumugam, P., Grunwald, W. C., Smith, D. R., … Miller, J. D. (2014). Identification of a cytotoxic form of dimeric interleukin-2 in murine tissues. PLoS ONE, 9(7). https://doi.org/10.1371/journal.pone.0102191

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free