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Chun K, Afshar M, Audish D, Kabigting F, Paik A, Gallo R, Hata T. Hepatitis C may enhance key amplifiers of psoriasis. J Eur Acad Dermatol Venereol 2016; 31:672-678. [PMID: 27184185 DOI: 10.1111/jdv.13578] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 11/27/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Multiple studies have noted an association between hepatitis C and psoriasis, but it is not known whether psoriasis is a result of treatment modalities for hepatitis C or a result of hepatitis C alone. OBJECTIVE To examine the relationship between psoriasis and hepatitis C by measuring the expression of cathelicidin, TLR9 and IFNγ in psoriatic lesional and non-lesional skin in HCV-positive and negative psoriatic patients. METHODS Two 2 mm punch biopsies of lesional and non-lesional skin in 10 patients who were HCV-negative psoriatics and seven HCV-positive psoriatics were used to measure cathelicidin, TLR9 and IFNγ mRNA expression by quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR). RESULTS The mRNA levels of cathelicidin, TLR9 and IFNγ were significantly higher in both non-lesional and lesional skin of HCV-positive patients with psoriasis as compared to HCV-negative psoriatic patients. Additionally, the IFNγ level in lesional skin of HCV-positive psoriatic patients was higher than the IFNγ level seen in non-lesional skin of those same patients. CONCLUSION These findings suggest that HCV infection upregulates these inflammatory cytokines, possibly increasing susceptibility to developing psoriasis.
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Affiliation(s)
- K Chun
- Department of Dermatology, University of California, San Diego, CA, USA
| | - M Afshar
- Department of Dermatology, University of California, San Diego, CA, USA
| | - D Audish
- Department of Dermatology, University of California, San Diego, CA, USA
| | - F Kabigting
- Department of Dermatology, University of California, San Diego, CA, USA
| | - A Paik
- Department of Dermatology, University of California, San Diego, CA, USA
| | - R Gallo
- Department of Dermatology, University of California, San Diego, CA, USA
| | - T Hata
- Department of Dermatology, University of California, San Diego, CA, USA
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4
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Lin Y, Zhao P, Shen C, Shen S, Zheng X, Zuo X, Yang S, Zhang X, Yin X. Identification of cell types, tissues and pathways affected by risk loci in psoriasis. Mol Genet Genomics 2015; 291:1005-12. [PMID: 26563434 DOI: 10.1007/s00438-015-1141-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 10/28/2015] [Indexed: 01/11/2023]
Abstract
Many common variants have been found associated with the risk of psoriasis, but the underlying mechanism is still largely unknown, mostly owing to the difficulty in dissecting the mechanism of each variant using representative cell type and tissue in biological experiments. We applied an integrative method SNPsea which has been developed by investigators in Broad, to identify the most relevant cell types, tissues, and pathways to psoriasis by assessing the condition specificity affected by psoriasis genome-wide association studies-implicated genes. We employed this software on 89 single-nucleotide polymorphisms with genome-wide significance in Han Chinese and Caucasian populations. We found significant evidence for peripheral blood CD56 + NK cells (P = 1.30 × 10(-7)), Langerhans cells (P = 4.96 × 10(-6)) and CD14+ monocytes (P < 4.80 × 10(-5)) in psoriasis. We suggested that the DNase I hypersensitivity sites in CD14+ cells were active in psoriasis (P = 2.20 × 10(-16)). In addition, we discovered that biotic stimulus response, cytokine production and NF-κB pathways were significantly activated in psoriasis (P < 1.00 × 10(-5)). In conclusion, we found several innate immune cells and immune pathways in psoriasis that will help guide biological experiments for psoriasis risk variants in future.
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Affiliation(s)
- Yan Lin
- Department of Dermatology, The Fourth Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Pan Zhao
- Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China.,School of Basic Medical Science, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Changbing Shen
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Songke Shen
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xiaodong Zheng
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xianbo Zuo
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Sen Yang
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xuejun Zhang
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China.,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China.,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xianyong Yin
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China. .,Key Lab of Dermatology, Ministry of Education (Anhui Medical University) and State Key Lab of Dermatology Incubation, Hefei, 230032, Anhui, China. .,Key Lab of Gene Resource Utilization for Complex Diseases, Hefei, 230032, Anhui, China. .,Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, 230032, Anhui, China. .,Department of Genetics, and Renaissance Computing Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27517, USA.
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