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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

HSP70-2 9.0 kb variant is in linkage disequilibrium with the HLA-B and DRB1* alleles associated with clozapine-induced agranulocytosis.

In order to extend the analysis of the association between class I and class II HLA markers and HSP-70 alleles, we studied the genetic polymorphism of HSP70-2 genes by restriction fragment length polymorphism analysis in a panel of HLA-homozygous cell lines carrying the HLA-B alleles known to be associated with clozapine-induced agranulocytosis. We have found a linkage disequilibrium between the 9.0 kb variant of HSP70-2 with the class I antigens HLA-B7, B38, and B44 and with the class II antigens HLA-DR2 and DR4. We discuss the importance of analyzing the variants of HSP70-2 in patients with agranulocytosis to confirm that the 9.0 kb allele is a genetic marker for the disease. If that is the case, HSP-70 variants could explain the different associations of HLA alleles in individuals of Jewish and non-Jewish ancestry because the HLA alleles are in linkage disequilibrium with the 9.0 kb band. We postulate that HSP-70 molecules could also play a significant role in determining the molecular mechanisms that induce agranulocytosis by clozapine.[1]

References

  1. HSP70-2 9.0 kb variant is in linkage disequilibrium with the HLA-B and DRB1* alleles associated with clozapine-induced agranulocytosis. Corzo, D., Yunis, J.J., Yunis, E.J., Howard, A., Lieberman, J.A. The Journal of clinical psychiatry. (1994) [Pubmed]
 
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