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Immune System Pathway Identified to Fight Allergens, Asthma

By R&D Editors | May 8, 2008

For the first time, researchers from the University of Pittsburgh School of Medicine have identified genetic components of dendritic cells that are key to asthma and allergy-related immune response malfunction. Targeting these elements could result in more effective drugs to treat allergic disorders and asthma, according to a study reported in the May edition of the journal Nature Medicine.

Dendritic cells are vital to immune response in that they recognize, capture and introduce threatening organisms to T lymphocytes?other immune cells that secrete potent proteins called cytokines that surround and destroy the invaders. However, the Pittsburgh team’s study goes further to illuminate a pathway that allergens use to act directly on dendritic cells to propel differentiation into the T lymphocytes that fight back.

“We now have identified a molecule, c-Kit, that is central to the process of allergic response,” said Anuradha Ray, PhD, co-corresponding author and professor of medicine and immunology in the Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine. “We show that genes encoding for c-Kit and the cytokine interleukin 6 (IL-6) are significantly activated when allergens are present, but c-Kit is the very first molecule that gets triggered.”

Release date: May 7, 2008
Source: University of Pittsburgh School of Medicine 

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