T Cell, Ig Domain, Mucin Domain-2 Gene-Deficient Mice Reveal a Novel Mechanism for the Regulation of Th2 Immune Responses and Airway Inflammation

Autor: Zhifang Li, Steven D. Miklasz, Joseph V. Bonventre, Takaharu Ichimura, Lourdes Pablo, Patricia Mccoon, Irene Sizing, Veronique Bailly, Paul D. Rennert, Leticia Tarilonte, Rachel Rennard
Rok vydání: 2006
Předmět:
Zdroj: The Journal of Immunology. 177:4311-4321
ISSN: 1550-6606
0022-1767
DOI: 10.4049/jimmunol.177.7.4311
Popis: The development of asthma and other atopic diseases is influenced by cytokines produced by Th2 effector T cells. How effector T cell responses are regulated once these cell populations are established remains unclear. The recently described T cell and airway phenotype regulator locus, containing the T cell, Ig domain, mucin domain (TIM) genes, is genetically associated with Th2 cytokine production and Th2-dependent immune responses. In this study, we report the phenotype of the TIM-2 gene-deficient mouse, and demonstrate exacerbated lung inflammation in an airway atopic response model. Immune responses in the TIM-2-deficient mouse reveal disregulated expression of Th2 cytokines, and adoptive transfer experiments show that the T cell compartment is responsible for the heightened inflammatory phenotype. These studies show that TIM-2 is a novel and critical regulator of effector T cell activity.
Databáze: OpenAIRE