title: T cell repertoire following kidney transplantation revealed by high-throughput sequencing.
abstract: Delayed T cell recovery and restricted T cell receptor (TCR) diversity after kidney transplantation are associated with increased risks of infection and malignancy. Technical challenges limit the faithful measurement of TCR diversity after kidney transplantation. In this study, we used a combination of multiplex-PCR, Illumina sequencing and IMGT/HighV-QUEST to directly assess millions of TCRs per individual before and at two time points after kidney transplantation (1days and 7days after transplantation) in a cohort of 10 patients compared to a normal control (NC) group (n=10). We identified the most commonly observed CDR3 length, VD indel length, and DJ indel length in transplantation group and normal group. In addition, we found that the TCR repertoire diversity of transplantation groups was relatively lower compared to NC group. T cell depletion in Post-1 group can be observed, which resulted in the altered distribution characteristics of clonotype abundance. A modest proportion of high abundance clones were shared among the pre-1 group, post-1 group and post-7 group, and it did not exist in the NC group, which exhibited a signature of antigen selection. Moreover, our results also demonstrated that various TRBV expression increased and some public sequences at different time points after kidney transplantation, which may provide biomarkers to monitor the immune status of transplant patients.
authors: Department of Nephrology, The Affiliated Guilin Hospital of Southern Medical University, Guilin, Guangxi 541002, PR China.
authors: Liusheng
authors: L
authors: Lai
authors: Department of Nephrology, The Affiliated Guilin Hospital of Southern Medical University, Guilin, Guangxi 541002, PR China.
authors: Lei
authors: L
authors: Wang
authors: Department of Nephrology, Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, Guangxi 541002, PR China.
authors: Huaizhou
authors: H
authors: Chen
authors: Department of Nephrology, The Affiliated Guilin Hospital of Southern Medical University, Guilin, Guangxi 541002, PR China.
authors: Jiaxing
authors: J
authors: Zhang
authors: Department of Nephrology, The Affiliated Guilin Hospital of Southern Medical University, Guilin, Guangxi 541002, PR China.
authors: Qiang
authors: Q
authors: Yan
authors: Department of Nephrology, Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, Guangxi 541002, PR China.
authors: Minglin
authors: M
authors: Ou
authors: Department of Nephrology, Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, Guangxi 541002, PR China.
authors: Hua
authors: H
authors: Lin
authors: Department of Nephrology, Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, Guangxi 541002, PR China.
authors: Xianliang
authors: X
authors: Hou
authors: Beijing Genomics Institute, Shenzhen 518083, PR China.
authors: Sisi
authors: S
authors: Chen
authors: Department of Nephrology, Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, Guangxi 541002, PR China; Clinical Medical Research Center, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, Guangdong 518020, PR China.
authors: Yong
authors: Y
authors: Dai
authors: Department of Nephrology, The Affiliated Guilin Hospital of Southern Medical University, Guilin, Guangxi 541002, PR China; Department of Nephrology, Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, Guangxi 541002, PR China. Electronic address: suiwg@163.com.
authors: Weiguo
authors: W
authors: Sui
mesh_terms: D000328:Adult; D017637:Clonal Deletion; D015331:Cohort Studies; D022801:Complementarity Determining Regions / Q000235:genetics*; D005260:Female; D014644:Genetic Variation; D006084:Graft Rejection / Q000175:diagnosis / Q000276:immunology*; D059014:High-Throughput Nucleotide Sequencing / Q000379:methods*; D006801:Humans; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D015166:Monitoring, Immunologic; D011948:Receptors, Antigen, T-Cell / Q000235:genetics*; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D022801:Complementarity Determining Regions; D011948:Receptors, Antigen, T-Cell
keywords: Complementarity determining region3; Immune repertoire; Kidney transplantation; Next generation sequencing; T cell receptor