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Zhu C, Fei W, Wang W, Tang L, Gao J, Zhou F. Copy Number Variation Analysis of IL22 and LCE3C in Different Subtypes of Psoriasis in a Chinese Han Population. Med Sci Monit 2021; 27:e934927. [PMID: 34853291 PMCID: PMC8650389 DOI: 10.12659/msm.934927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/04/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Psoriasis is a chronic, immune-mediated and hyperproliferative skin disease with both genetic and environmental components. Copy number variations (CNV) of IL22 and LCE3C-LCE3B deletion have been confirmed to be predisposed to psoriasis vulgaris (PsV) in several ethnic groups. However, it remains to be clarified whether CNVs of IL22 and LCE3C are associated with different subtypes of psoriasis (psoriatic arthritis, PsA; erythrodermic psoriasis, EP; and generalized pustular psoriasis, GPP). MATERIAL AND METHODS We enrolled 897 Han Chinese individuals, including 478 patients and 419 healthy controls, and detected CNVs of IL22 and LCE3C using the comparative CT method by real-time PCR, and Pearson's χ² test was used to evaluated the copy number difference among subtypes. RESULTS CNVs of IL22 were significantly higher in PsV than in healthy controls (P<0.001). CNV of LCE3C in PsV, PsA, and GPP groups were significantly lower compared to healthy controls. When linked with clinical parameters, mild psoriasis carried less IL22 copy numbers than that in severe psoriasis (P=0.043). Neither IL22 or LCE3C CNVs were associated with age of onset. CONCLUSIONS CNVs of LCE3C and IL22 might differentially contribute to subtypes of psoriasis. These findings suggest complex and diverse genetic variations in and among different clinical subtypes of psoriasis.
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Affiliation(s)
- Caihong Zhu
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
| | - Wenmin Fei
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
| | - Wenjun Wang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
| | - Lili Tang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
| | - Jinping Gao
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
| | - Fusheng Zhou
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
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Psoriasis in Skin of Color: Insights into the Epidemiology, Clinical Presentation, Genetics, Quality-of-Life Impact, and Treatment of Psoriasis in Non-White Racial/Ethnic Groups. Am J Clin Dermatol 2018; 19:405-423. [PMID: 29209945 DOI: 10.1007/s40257-017-0332-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Psoriasis is a chronic inflammatory skin condition affecting diverse racial/ethnic groups throughout the world. Large population-based studies suggest that psoriasis occurs most often in individuals of European ancestry, followed by black and Hispanic individuals, although the true prevalence of psoriasis in non-white individuals is likely underestimated. Despite similarities in psoriasis between ethnic groups, there are notable differences in the presentation, quality-of-life impact, and treatment of psoriasis with important implications for the management of non-white individuals. Overall, heterogeneity in psoriasis susceptibility alleles, in combination with cultural and socioeconomic factors, may explain these differences. In this article, we review the epidemiology, clinical presentation, genetic polymorphisms, quality-of-life impact, and treatment nuances of psoriasis in patients with skin of color.
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