Indian journal of dermatology · 2019
Evaluation of HCP5 and Chemokine C Receptor type 5 Gene Polymorphisms in Indian Psoriatic Patients.
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Rajesh Deepa, Nagraj Sudeep, Kumar K S Praveen, Kutty A V Moideen, Balakrishna Sharath
Аннотация
BACKGROUND: Genetic variations associated with nonprogression of HIV infection to AIDS are enriched in psoriasis patients. HCP5 gene 335 T > G and chemokine C receptor type 5 (CCR5) gene Δ32 polymorphisms are associated with HIV nonprogression phenotype.
AIM: The aim of this study was to determine the association of HCP5 gene 335 T > G (rs2395029) and CCR5 gene Δ32 (rs333) polymorphisms with psoriasis vulgaris (PV).
MATERIALS AND METHODS: Genotype of HCP5 gene 335 T > G and CCR5 gene Δ32 polymorphisms were determined by polymerase chain reaction (PCR)-restriction fragment length polymorphism and allele-specific PCR methods, respectively.
RESULTS: The frequency of HCP5 gene 335 T > G SNP was ~7 times higher in PV patients than in the control group (P = 1.49 × 10-8; odds ratio [OR] = 10.2; 0.95 confidence interval [CI]: 3.9-26.8). OR for the occurrence of HCP5 335 G allele in either homozygous or heterozygous genotype in PV patients was 13.1 (0.95 CI: 4.7-36.1). The strength of association was higher with moderate-to-severe subgroup (P = 3.29 × 10-9; OR = 18.4; 0.95 CI: 6.2-54.9) than with mild subgroup (P = 2.1 × 10-4; OR = 8.3; 0.95 CI: 2.6-23.3). In addition, the strength of association was higher with Type I (P = 9.53 × 10-8; OR = 15.3; 0.95 CI: 5.1-46.5) than with Type II subgroup (P = 6.8 × 10-6; OR = 11.0; 0.95 CI: 3.6-33.9). Type I gene Δ32 polymorphism was observed neither among psoriatic nor among healthy individuals.
CONCLUSIONS: Our results indicate that HCP5 gene 335 T > G polymorphism and not CCR5 gene Δ32 polymorphism is associated with the increased risk of developing PV.
AIM: The aim of this study was to determine the association of HCP5 gene 335 T > G (rs2395029) and CCR5 gene Δ32 (rs333) polymorphisms with psoriasis vulgaris (PV).
MATERIALS AND METHODS: Genotype of HCP5 gene 335 T > G and CCR5 gene Δ32 polymorphisms were determined by polymerase chain reaction (PCR)-restriction fragment length polymorphism and allele-specific PCR methods, respectively.
RESULTS: The frequency of HCP5 gene 335 T > G SNP was ~7 times higher in PV patients than in the control group (P = 1.49 × 10-8; odds ratio [OR] = 10.2; 0.95 confidence interval [CI]: 3.9-26.8). OR for the occurrence of HCP5 335 G allele in either homozygous or heterozygous genotype in PV patients was 13.1 (0.95 CI: 4.7-36.1). The strength of association was higher with moderate-to-severe subgroup (P = 3.29 × 10-9; OR = 18.4; 0.95 CI: 6.2-54.9) than with mild subgroup (P = 2.1 × 10-4; OR = 8.3; 0.95 CI: 2.6-23.3). In addition, the strength of association was higher with Type I (P = 9.53 × 10-8; OR = 15.3; 0.95 CI: 5.1-46.5) than with Type II subgroup (P = 6.8 × 10-6; OR = 11.0; 0.95 CI: 3.6-33.9). Type I gene Δ32 polymorphism was observed neither among psoriatic nor among healthy individuals.
CONCLUSIONS: Our results indicate that HCP5 gene 335 T > G polymorphism and not CCR5 gene Δ32 polymorphism is associated with the increased risk of developing PV.