[Relationship between gene polymorphism of CYP2E1, CYP1A1, IL-4 and medicamentosa-like dermatitis induced by trichloroethylene].
OBJECTIVE
To investigate the relationship between gene polymorphism of CYP2E1, CYP1A1, IL-4 and susceptibility of medicamentosa-like dermatitis induced by trichloroethylene (TCE).


METHODS
35 patients with medicamentosa-like dermatitis induced by TCE were chosen as the patient group, and 35 healthy workers as control group. The real-time quantitative polymerase chain reaction (PCR) with TaqMan minor groove binding (MGB) probes was used to test single nucleotide polymorphisms (SNP) of CYP2E1, CYP1A1 and IL-4 in the patients with medicamentosa-like dermatitis as well as in the control. The genotypes and the frequency of genotype or allele were compared between the patients and control with statistical analysis.


RESULTS
The frequency of allele G within CYP1A1 gene (rs1048943) was significantly higher in TCE patients (37.1%) than that in control (P<0.05); the frequency of allele T within CYP2E1-1053 C/T was significantly higher in TCE patients (41.4%) than that in control (P<0.01); the frequency of T/T within IL-4-588 C/T (rs2243250) was significantly higher in TCE patients (75.0%) than that in control (P<0.01), and the frequency of allele T within IL-4-588 C/T (rs2243250) was also significantly higher in TCE patients (87.5%) than that in control (P<0.01).


CONCLUSIONS
The gene polymorphism of CYP2E1, CYP1A1, IL-4 is probably associated with hypersensitivity for the TCE patients with medicamentosa-like dermatitis, and could be one of the genetic factors related to the individual susceptibility to TCE exposure.
Xu
Xin-yun
XY
Shenzhen Center for Disease Control and Prevention, Shenzhen 518020, China.
Chen
Guan-hao
GH
Wu
Nan
N
Yu
Lei
L
Huang
Fang
F
Yang
Lin-qing
LQ
D019363:Cytochrome P-450 CYP1A1 / Q000235:genetics*; D019392:Cytochrome P-450 CYP2E1 / Q000235:genetics*; D009783:Dermatitis, Occupational / Q000235:genetics*; D020022:Genetic Predisposition to Disease; D006801:Humans; D015847:Interleukin-4 / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D014241:Trichloroethylene / Q000009:adverse effects*
C508598:IL4 protein, human; D015847:Interleukin-4; D014241:Trichloroethylene; D019392:Cytochrome P-450 CYP2E1; D019363:Cytochrome P-450 CYP1A1