PMID- 35789988 OWN - NLM STAT- MEDLINE DCOM- 20220829 LR - 20220830 IS - 1179-2000 (Electronic) IS - 1177-1062 (Linking) VI - 26 IP - 5 DP - 2022 Sep TI - Associations between HLA-Cw1 and Systemic Treatment Response of Asian Psoriasis Patients. PG - 541-549 LID - 10.1007/s40291-022-00603-4 [doi] AB - INTRODUCTION: Psoriasis is a chronic inflammatory disease with a strong genetic background, particularly the human leukocyte antigen (HLA). HLA-Cw6 has been shown to be the major disease susceptibility locus and affects the phenotypes and treatment response in psoriasis; however, the prevalence of HLA-Cw6 is far lower than HLA-Cw1 in some Asian countries. OBJECTIVES: The aim of this study was to determine whether HLA-Cw1 predisposes psoriasis patients to different treatment responses of biologics and other systemic therapy. METHODS: This retrospective case-control study included 126 patients with moderate to severe plaque-type psoriasis who had been genotyped and treated in a special psoriasis clinic. HLA-Cw1-positive and -negative patients were compared. RESULTS: Our results showed that HLA-Cw1-negative patients were significantly more likely to respond (achieve Psoriasis Area and Severity Index [PASI] 75 after a 12- to 16-week treatment course) to biologics (including etanercept, adalimumab, ustekinumab, secukinumab, ixekizumab, and guselkumab; odds ratio [OR] 1.99, 95% confidence interval [CI] 1.17-3.44, p = 0.0122) and especially to ustekinumab (OR 3.27, 95% CI 1.03-11.30; p = 0.0496). An HLA-Cw1 allele dose effect was also found. The results remained after multivariate logistic regression analysis. HLA-Cw1-negative patients also showed significantly greater improvement of PASI in ustekinumab and biologics (p = 0.0044 and p = 0.0064, respectively), with other biologics showing non-significant trends. HLA-Cw1 status did not affect the treatment responses of non-biologic systemic treatment, including phototherapy. CONCLUSION: There is an association between HLA-Cw1 and treatment response to biologics, but not to non-biologics, in our Asian population of patients with moderate to severe psoriasis; however, the exact mechanism and role of HLA-Cw1 remain to be investigated. CI - (c) 2022. The Author(s), under exclusive licence to Springer Nature Switzerland AG. FAU - Ho, Shin-Shin AU - Ho SS AUID- ORCID: 0000-0001-9974-8614 AD - National Taiwan University Hospital, No. 7 Chung San South Road, Taipei, Taiwan. FAU - Tsai, Tsen-Fang AU - Tsai TF AUID- ORCID: 0000-0002-1498-1474 AD - National Taiwan University Hospital, No. 7 Chung San South Road, Taipei, Taiwan. tftsai@yahoo.com. AD - Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan. tftsai@yahoo.com. LA - eng PT - Journal Article DEP - 20220705 PL - New Zealand TA - Mol Diagn Ther JT - Molecular diagnosis & therapy JID - 101264260 RN - 0 (HLA-C Antigens) RN - 0 (HLA-Cw1 antigen) RN - FU77B4U5Z0 (Ustekinumab) SB - IM MH - Case-Control Studies MH - HLA-C Antigens MH - Humans MH - *Psoriasis/drug therapy/genetics MH - Retrospective Studies MH - Severity of Illness Index MH - Treatment Outcome MH - *Ustekinumab/therapeutic use EDAT- 2022/07/06 06:00 MHDA- 2022/08/30 06:00 CRDT- 2022/07/05 20:06 PHST- 2022/06/06 00:00 [accepted] PHST- 2022/07/06 06:00 [pubmed] PHST- 2022/08/30 06:00 [medline] PHST- 2022/07/05 20:06 [entrez] AID - 10.1007/s40291-022-00603-4 [pii] AID - 10.1007/s40291-022-00603-4 [doi] PST - ppublish SO - Mol Diagn Ther. 2022 Sep;26(5):541-549. doi: 10.1007/s40291-022-00603-4. Epub 2022 Jul 5.