High throughput sequencing reveals the diversity of TRB-CDR3 repertoire in patients with psoriasis vulgaris

作者：Cao, Xiaofang; Wa, Qingbiao; Wang, Qidi; Li, Lin; Liu, Xin; An, Lisha; Cai, Ruikun; Du, Meng; Qiu, Yue; Han, Jian; Wang, Chunlin; Wang, Xingyu; Guo, Changlong^*; Lu, Yonghong^*; Ma, Xu^*

来源：International Immunopharmacology, 2016, 40: 487-491.

DOI：10.1016/j.intimp.2016.10.004

• Psoriasis
• High-throughput sequencing
• TRB-CDR3 repertoire

Psoriasis is a T cell-mediated chronic inflammatory skin disease with inflammatory cell infiltrates in the dermis and epidermis. Previous studies suggested that there are some expanded T-cell receptor (TCR) clones in psoriatic skin. However, the effect of psoriasis on the immunological characteristics of TCR in circulating blood has not been reported. To address this, we performed high-throughput sequencing to reveal the immunological characteristics of TCR beta chain (TRB) in both psoriasis patients and healthy controls. Our results revealed that the TRBCDR3 region of psoriasis patients had distinctive immunological characteristics compared with that of healthy controls, including V gene usage, nt of N addition. In addition, three types of TRB-CDR3 peptides were found highly relevant to psoriasis. Our findings show the comprehensive characteristics of psoriasis on the TRB-CDR3 repertoire of circulating blood at sequence-level resolution. These findings may contribute to a better understanding of the pathogenesis of psoriasis and open opportunities to explore potential therapeutic targets.

• 出版日期2016-11
• 单位中国医学科学院北京协和医院; 国家卫生计生委科学技术研究所; 成都市第二人民医院