Occupational Asthma Reference

Newman Taylor AJ, Cullinan P, Lympany PA et al, Interaction of HLA phenotype and exposure intensity in sensitisation to complex platinum salts, Am J Respir Crit Care Med, 1999;160:435-438,


Known Authors

Paul Cullinan, Royal Brompton Hospital, London, UK Paul Cullinan

Tony Newman Taylor, Royal Brompton Hospital, London Tony Newman Taylor

If you would like to become a known author and have your picture displayed along with your papers then please get in touch from the contact page. Known authors can choose to receive emails when their papers receive comments.


The development of sensitization to inhaled allergens is determined by the interaction of multiple genetic and environmental influences. Occupational sensitization to low-molecular-weight chemicals allows a specific immunological response to an inhaled hapten to be studied in a well-defined population with characterized exposure. We investigated the workforce of a large platinum refinery exposed to ammonium hexachloroplatinate (ACP) to test the hypothesis that the development of IgE-associated sensitization to ACP was influenced by human leukocyte-associated antigen (HLA) phenotype, especially in those with lower ACP exposure. We performed HLA typing in 44 cases with a positive skin prick test to ACP, and 57 nonsensitized referents matched on age, race, duration of employment, and category of ACP exposure. An HLA-DR3 phenotype was more common among cases (odds ratio [OR] 2.3), and more so in those with low (OR infinite) than with high exposure (OR 1.6); HLA-DR6 was less common among the cases (OR 0.4), an association also stronger in the low-exposure group (OR 0.1 versus 0.5). These results provide evidence that HLA phenotype is a significant determinant of sensitization to complex platinum salts and for the first time show that the strength of this association varies with intensity of exposure to the sensitizing agent. They imply that as exposure-control measures are taken to prevent occupational sensitization and, by analogy, sensitization to allergens outside the workplace, disease incidence will increasingly be determined by genetic susceptibility.

Full Text


Please sign in or register to add your thoughts.

Oasys and occupational asthma smoke logo