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Influence of polymorphic metabolic enzymes on biotransformation and effects of diphenylmethane diisocyanate.

Littorin, Margareta LU ; Hou, Saimei; Broberg Palmgren, Karin LU ; Björk, Jonas LU ; Fält, Susanne; Abdoulaye, Galbani; Kalemba, Malgorzata; Ryk, Charlotta and Skerfving, Staffan LU (2008) In International Archives of Occupational and Environmental Health 81(4). p.429-441
Abstract
Objectives To identify effect modification produced by genetic traits found in metabolic enzymes, to investigate how these affect the levels of different biomarkers of sprayed and thermo-degraded polyurethane (PUR) based on 4,4′-diphenylmethane diisocyanate (MDI) and to determine how associated respiratory disorders are affected.

Methods Two partly overlapping groups of 141 and 158 factory employees exposed to sprayed or heated MDI-PUR glue were examined in years 0 and 2, respectively, for occurrence of polymorphisms in five genes (N-acetyltransferase NAT2 and the glutathione S-transferases GSTM1, GSTM3, GSTP1 [codon 105 and 114] and GSTT1) on the basis of the polymerase chain reaction, exposure biomarkers in plasma and urine (P-... (More)
Objectives To identify effect modification produced by genetic traits found in metabolic enzymes, to investigate how these affect the levels of different biomarkers of sprayed and thermo-degraded polyurethane (PUR) based on 4,4′-diphenylmethane diisocyanate (MDI) and to determine how associated respiratory disorders are affected.

Methods Two partly overlapping groups of 141 and 158 factory employees exposed to sprayed or heated MDI-PUR glue were examined in years 0 and 2, respectively, for occurrence of polymorphisms in five genes (N-acetyltransferase NAT2 and the glutathione S-transferases GSTM1, GSTM3, GSTP1 [codon 105 and 114] and GSTT1) on the basis of the polymerase chain reaction, exposure biomarkers in plasma and urine (P- and U-MDX), by means of gas chromatography-mass spectrometry, specific serum IgG antibodies against MDI (S-IgG-MDI) by means of ELISA, total S-IgE, symptoms in the eyes, nose and lower airways as assessed by questionnaire and interview, and lung function as measured by spirometry.

Results Both the GSTP1 105 isoleucine/isoleucine and GSTP1 114 alanine/alanine genotypes showed higher levels of U-MDX than the other genotypes and the GSTP1 114 genotype modified the P-MDX/U-MDX relationship. GSTP1 105 isoleucine/isoleucine was found to be associated with lower levels of S-IgG-MDI and fewer eye symptoms, but with an increased risk of symptoms in the airways, as well as with atopy. Presence of the GSTT1 gene resulted in somewhat lower lung function levels than did the null genotype. A slow NAT2 acetylating capacity was associated with lower P- and U-MDX and S-IgG-MDI levels, and better lung function, but a higher risk of eye and airway symptoms. Analysing the effects of combinations of the different genes provided no further information.

Conclusions Although our study has clear limitations, it reveals various effect modifications produced by the GST and NAT2 genotypes. Gene-environment interactions are highly complex. Further research is needed to obtain a more comprehensive understanding of them. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Archives of Occupational and Environmental Health
volume
81
issue
4
pages
429 - 441
publisher
Springer
external identifiers
  • wos:000252160400007
  • scopus:38049187887
ISSN
1432-1246
DOI
10.1007/s00420-007-0232-x
language
English
LU publication?
yes
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4700d00b-c7ba-4527-88f6-a755dedc2f52 (old id 607083)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=17676332&dopt=Abstract
date added to LUP
2008-08-05 13:07:27
date last changed
2017-01-01 05:24:46
@article{4700d00b-c7ba-4527-88f6-a755dedc2f52,
  abstract     = {Objectives To identify effect modification produced by genetic traits found in metabolic enzymes, to investigate how these affect the levels of different biomarkers of sprayed and thermo-degraded polyurethane (PUR) based on 4,4′-diphenylmethane diisocyanate (MDI) and to determine how associated respiratory disorders are affected.<br/><br>
Methods Two partly overlapping groups of 141 and 158 factory employees exposed to sprayed or heated MDI-PUR glue were examined in years 0 and 2, respectively, for occurrence of polymorphisms in five genes (N-acetyltransferase NAT2 and the glutathione S-transferases GSTM1, GSTM3, GSTP1 [codon 105 and 114] and GSTT1) on the basis of the polymerase chain reaction, exposure biomarkers in plasma and urine (P- and U-MDX), by means of gas chromatography-mass spectrometry, specific serum IgG antibodies against MDI (S-IgG-MDI) by means of ELISA, total S-IgE, symptoms in the eyes, nose and lower airways as assessed by questionnaire and interview, and lung function as measured by spirometry.<br/><br>
Results Both the GSTP1 105 isoleucine/isoleucine and GSTP1 114 alanine/alanine genotypes showed higher levels of U-MDX than the other genotypes and the GSTP1 114 genotype modified the P-MDX/U-MDX relationship. GSTP1 105 isoleucine/isoleucine was found to be associated with lower levels of S-IgG-MDI and fewer eye symptoms, but with an increased risk of symptoms in the airways, as well as with atopy. Presence of the GSTT1 gene resulted in somewhat lower lung function levels than did the null genotype. A slow NAT2 acetylating capacity was associated with lower P- and U-MDX and S-IgG-MDI levels, and better lung function, but a higher risk of eye and airway symptoms. Analysing the effects of combinations of the different genes provided no further information.<br/><br>
Conclusions Although our study has clear limitations, it reveals various effect modifications produced by the GST and NAT2 genotypes. Gene-environment interactions are highly complex. Further research is needed to obtain a more comprehensive understanding of them.},
  author       = {Littorin, Margareta and Hou, Saimei and Broberg Palmgren, Karin and Björk, Jonas and Fält, Susanne and Abdoulaye, Galbani and Kalemba, Malgorzata and Ryk, Charlotta and Skerfving, Staffan},
  issn         = {1432-1246},
  language     = {eng},
  number       = {4},
  pages        = {429--441},
  publisher    = {Springer},
  series       = {International Archives of Occupational and Environmental Health},
  title        = {Influence of polymorphic metabolic enzymes on biotransformation and effects of diphenylmethane diisocyanate.},
  url          = {http://dx.doi.org/10.1007/s00420-007-0232-x},
  volume       = {81},
  year         = {2008},
}