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IRTA2-001-VITO: In Vivo and In Vitro Characterisation of Chemical Respiratory Allergens: Development of an In Vitro Assay Using Gene Expression Profiling

Principal Investigator

Dr. Rosette Van den Heuvel
Vito
Centre of Expertise for Environmental Toxicology
Boeretang 200
B-2400 Mol
rosette.vandenheuvel@vito.be
Tel: +32 14 335 214
Fax: +32 14 335 805

Collaborators

Dr. Geert Verheyen - Centre of Expertise for Environmental Toxicology
geert.verheyen@vito.be
Dr. Raymond Pieters - Institute for Risk Assessment Sciences (IRAS)
R.Pieters@iras.uu.nl
Dr. Colin de Haar - Institute for Risk Assessment Sciences (IRAS)
C.deHaar@iras.uu.nl
LRI Monitor:

Dr. Hans-Juergen Ahr - Bayer HealthCare AG
hans-juergen.ahr@bayerhealthcare.com

Description

The main objective of this project is the development of an approach/strategy that can be used to identify chemical allergens and if possible to discern respiratory from contact sensitizers. In order to accomplish this, the proposed study aims to identify sensitizing chemicals using human and murine in vitro data linked to murine in vivo data. We will apply the parallelogram approach, allowing comparison of in vitro data from human and mouse experiments (DC and peripheral blood mononuclear cells) and in vitro and in vivo data from mouse experiments (DC exposed in vitro and DC isolated after in vivo exposure). A novel aspect in our approach is to apply gene expression profiling (cDNA microarrays) to identify the genes that are influenced by exposure to model allergens. It should be demonstrated that contact allergens and chemical respiratory allergens provoke discrete changes in gene expression which may form the basis of robust method for the identification of chemicals that cause sensitization of the respiratory tract. 

Related Publications

Final report and publications expected in 2006.

Timeline: December 2004 > November 2005

LRI funding: € 120 000

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