全基因组测序揭示了导致牛皮癣的罕见和结构变异,并将CERCAM确定为风险基因。

IF 11.1 Q1 CELL BIOLOGY
Kyuto Sonehara, Rei Watanabe, Yutaka Matsumura, Yuichi Mitsui, Yosuke Ogawa, Kaori Odomari, Saori Sakaue, Shinichi Namba, Mariko Komuro, Mio Edamoto, Junya Watanabe, Tomomitsu Hirota, Noriko Arase, Yuumi Nakamura, Kimiko Nakajima, Takashi Okamoto, Rika Nishikawa, Kenichi Yamamoto, Ken Suzuki, Toshihiro Kishikawa, Ryuya Edahiro, Yuya Shirai, Tatsuhiko Naito, Noah Sasa, Yosuke Ishitsuka, Junichi Furuta, Kayo Kunimoto, Ikko Kajihara, Satoshi Fukushima, Hideaki Miyachi, Hiroyuki Matsue, Masahiro Kamata, Mami Momose, Ippei Miyagawa, Hiroaki Tanaka, Masanobu Ueno, Toshinori Bito, Hiroshi Nagai, Tetsuya Ikeda, Tatsuya Horikawa, Atsuko Adachi, Tsukasa Matsubara, Emi Nishida, Koichi Matsuda, Nobuhiro Shojima, Ikuma Nakagawa, Yoshihide Asano, Shinichi Sato, Shinichi Imafuku, Yayoi Tada, Chikako Nishigori, Masatoshi Jinnin, Hironobu Ihn, Akihiko Asahina, Hidehisa Saeki, Toshimasa Yamauchi, Takashi Kadowaki, Tatsuyoshi Kawamura, Shinji Shimada, Ichiro Katayama, Koichiro Higasa, Emiko Noguchi, Shigetoshi Sano, Yoshiya Tanaka, Fumihiko Matsuda, Atsushi Kumanogoh, Mayumi Tamari, Takashi Satoh, Manabu Fujimoto, Akimichi Morita, Yukinori Okada
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引用次数: 0

摘要

寻常型银屑病(PsV)是一种具有复杂遗传结构的免疫介导的炎症性皮肤病。大多数PsV全基因组关联研究(GWASs)仅限于分析欧洲人常见的单核苷酸变异,缺乏变异谱和祖先背景的多样性。为了研究罕见变异(RVs)和结构变异(SVs)的贡献,我们对日本的1,415例PsV病例和3,968例对照进行了全基因组测序研究。IFNLR1上的GWAS信号被精细定位到一个3.3 kb的缺失SV上,该缺失SV破坏了一个上皮特异性的假定增强子,PacBio长读测序证实了这一点。基于基因的RV分析确定了两个易感基因:IFIH1 (p = 9.8 × 10-6)和CERCAM (p = 4.1 × 10-7)。值得注意的是,IL36RN是全身性脓疱性银屑病(一种罕见且致命的多系统炎症性疾病)的致病基因,与常见的PsV相关(p = 1.2 × 10-4)。最后,在吡喹莫德诱导的银屑病小鼠模型中,Cercam基因敲除(Cercam-/-)会加重皮炎,皮下T细胞潴留升高。我们的研究阐明了PsV被忽视的遗传基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Whole-genome sequencing reveals rare and structural variants contributing to psoriasis and identifies CERCAM as a risk gene.

Psoriasis vulgaris (PsV) is an immune-mediated inflammatory skin disorder with complex genetic architecture. Most genome-wide association studies (GWASs) of PsV have been limited to analyzing common single-nucleotide variants in Europeans, lacking diversity in the variant spectrum and ancestral background. To investigate the contribution of rare variants (RVs) and structural variants (SVs), we perform a whole-genome sequencing study involving 1,415 PsV cases and 3,968 controls in Japanese. A GWAS signal at IFNLR1 is fine-mapped to a 3.3-kb deletion SV disrupting an epithelium-specific putative enhancer, which is validated by PacBio long-read sequencing. Gene-based RV analyses identify two susceptibility genes: IFIH1 (p = 9.8 × 10-6) and CERCAM (p = 4.1 × 10-7). Notably, IL36RN, a causative gene for generalized pustular psoriasis, a rare and lethal multi-systemic inflammatory disorder, is associated with common PsV (p = 1.2 × 10-4). Finally, Cercam knockout (Cercam-/-) in an imiquimod-induced psoriasis mouse model aggravates dermatitis with elevated T cell retention in the subepidermis. Our study elucidates the overlooked genetic basis of PsV.

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