Maciejewska-Radomska Agata, Szczerkowska-Dobosz Aneta, Rębała Krzysztof, Wysocka Joanna, Roszkiewicz Jadwiga, Szczerkowska Zofia, Placek Waldemar
Department of Dermatology, Venereology and Clinical Immunology, University of Warmia and Mazury, Olsztyn, Poland Head of the Department: Prof. Waldemar Placek MD, PhD.
Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland Head of the Department: Prof. Roman Nowicki MD, PhD.
Postepy Dermatol Alergol. 2015 Dec;32(6):455-8. doi: 10.5114/pdia.2014.40982. Epub 2015 Dec 11.
The association of guttate psoriasis with a streptococcal throat infection and HLA-Cw*06 allele is well established in different populations. Nevertheless, only few studies on this form of disease have been performed in the Polish population.
To analyze the frequencies of streptococcal-induced guttate psoriasis and HLA-Cw*06 allele in 70 patients with guttate psoriasis originating from northern Poland.
Seventy patients with guttate psoriasis and 24 healthy volunteers were enrolled into the study. Both groups were sex- and age-matched. The evidence of streptococcal infection was based on the positive throat swabs and/or elevated ASO titers. The modified method, including PCR-SSP and PCR-RFLP, was applied to HLA-Cw*06 genotyping.
HLA-Cw06 allele was confirmed in 49 (70%) out of 70 patients, which is significantly higher than in the control population (30%) (p = 0.001). Evidence for streptococcal infection was found in 34 (48.5%) subjects with psoriasis. Twenty-seven of them (79%) carried HLA-Cw06 allele. In 36 individuals in whom no evidence of streptococcal infection was found, 14 (39%) did not carry HLA-Cw*06 allele.
Our data confirm that HLA-Cw*06 is a major, but not imperative, genetic determinant for guttate psoriasis.
点滴状银屑病与链球菌性咽炎感染及HLA - Cw*06等位基因之间的关联在不同人群中已得到充分证实。然而,针对波兰人群中这种疾病形式的研究却很少。
分析来自波兰北部的70例点滴状银屑病患者中链球菌诱发的点滴状银屑病及HLA - Cw*06等位基因的频率。
70例点滴状银屑病患者和24名健康志愿者纳入本研究。两组在性别和年龄上匹配。链球菌感染的证据基于咽拭子阳性和/或抗链球菌溶血素O滴度升高。采用改良方法,包括聚合酶链反应-序列特异性引物法(PCR - SSP)和聚合酶链反应-限制性片段长度多态性法(PCR - RFLP)对HLA - Cw*06进行基因分型。
70例患者中有49例(70%)检测到HLA - Cw06等位基因,这显著高于对照组人群(30%)(p = 0.001)。在34例(48.5%)银屑病患者中发现有链球菌感染证据。其中27例(79%)携带HLA - Cw06等位基因。在36例未发现链球菌感染证据的个体中,14例(39%)未携带HLA - Cw*06等位基因。
我们的数据证实HLA - Cw*06是点滴状银屑病的主要但非必需的遗传决定因素。