1
|
Zhao DT, Guo CL, Yan HP, Liao HY, Liu YM, Zhang HP, An LS, Huang CY, Han Y, Zhao Y. [Characteristics of IgH-CDR3 repertoire of peripheral B cells in a patient with primary biliary cholangitis: a preliminary study using high-throughput sequencing]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:847-851. [PMID: 29325279 DOI: 10.3760/cma.j.issn.1007-3418.2017.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the characteristics of immunoglobulin heavy chain complementarity-determining region (IgH-CDR3) repertoire of peripheral B cells in a patient with primary biliary cholangitis (PBC) and to investigate the diversity of the immune system. Methods: Arm-PCR was used to amplify the IgH-CDR3 region of circulating B cells isolated from a PBC patient, and high-throughput sequencing was used to analyze the amplified product. The characteristics of immune repertoire were analyzed by bioinformatics. Results: In total, 329219 sequence reads were generated from the sample, with 325540 total CDR3 sequences and 72774 distinct CDR3 sequences, and the D50 of IGH-CDR3 was 7.7. The dominant CDR3 length of the sample was 45 nt (9.6%); the N addition with the highest frequency ranged from 13 to 14 nt (5.25%); the J trimming with the highest frequency was 0 nt (12.7%); the three most frequent V alleles were V4-59 (9.5%), V3-23 (8.1%), and V1-69 (6.4%). Conclusion: The diversity of IgH-CDR3 repertoire is relatively low in this patient with PBC, with several B-cell clonal expansions. The specificity needs to be further verified after increasing the sample size.
Collapse
Affiliation(s)
- D T Zhao
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - C L Guo
- National Research Institute for Family Planning, Beijing 100081, China
| | - H P Yan
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - H Y Liao
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Y M Liu
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - H P Zhang
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - L S An
- National Research Institute for Family Planning, Beijing 100081, China
| | - C Y Huang
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Y Han
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Y Zhao
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| |
Collapse
|