HE DEPENDENCE OF IMMUNOGLOBULIN IGA AND IGE TEAR LEVELS FROM GLUTATHIONES-TRANSFERASE P1 GENE POLYMORPHISMS IN STEELWORKERS WITH OPHTHALMOPATHY

Abstract.  Associations  between  I105V  and  A114V gene  polymorphisms  of  glutathione-S-transferase P1  and  levels  of  IgE  and  secretory  IgA  in  tear  fluid were  studied  in  steelworkers  with  or  without  ocular diseases,  as  compared  with  healthy  office  employees. Genotyping was performed by means of allele-specific polymerase chain reaction, whereas ELISA technique was used for immune testing. We have found that IgE levels in tear fluid was increased in steelworkers with dystrophic eye diseases, pinguecula/pterygium, and healthy steelworkers, in comparison with control group. This increase correlates with pinguecula/pterygium size and with their industrial employment terms. Secretory IgА levels in tears were decreased in these groups of workers, as compared with controls. Concentrations of both  immunoglobulins  in  tear  samples  depended  on  I105V  and  А114V  glutathione-S-transferase  P1  gene polymorphisms. I105V polymorphism correlated with lower concentrations of tear IgЕ in steelworkers with ocular  dystrophic  diseases  and  healthy  metallurgists.  А114V  polymorphism  is  connected  with  decreased quantities of tear IgЕ in steelworkers with ocular dystrophic diseases, as well as with the lower amounts of secretory  IgА  in  healthy  workers  and  administrative  staff.  Hence,  polymorphic  loci  I105V  and  А114V  of glutathione-S-transferase P1 gene may exert a modulatory effect upon biosynthesis of both Ig types. (Med. Immunol., 2011, vol. 13, N 6, pp 609-616)

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