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Diversity Analysis of 5 CDR3s of T Cell Receptor β Chain in Prostate Cancer |
Wei-bing PAN1,**(),Peng ZHU2,Qi-ang ZENG2,Kai WANG2,Song LIU3 |
Research Center for Clinical Medicine of Shenzhen Hospital, Shenzhen 518118,China |
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Abstract T lymphocyte receptors (TCRs) play an important role in antigen recognition immune response, and their diversity is closely related to host immune response and tumor prognosis. Objective: To investigate the clonal diversity and cloning sequence of T cell receptor (TCR) in prostate cancer tissues and paracancerous tissues by high-throughput sequencing. Methods: The cancer tissues and paracancerous tissues of 5 patients with PC were collected.After DNA extraction, the CDR3 region of TCR β chain was amplified by multiplex PCR. Sequencing was performed with Illumina MiSeq, and the composition characteristics of the TCR CDR3 library of prostate cancer tissues were compared by data processing and comparison analysis. Results: Prostate cancer tissues had a higher degree of cloning and higher high-amplification clones than HECs (HEC: frequency>0.5% TCR clones of total sample reads) and obtained 24 pairs of differential expression in cancer tissue samples The VJ gene combination, 16 pairs of VJ gene combinations differentially expressed in paracancerous tissue samples. Conclusion: There are different V-J gene combinations and high cloned HEC in prostate cancer tissues and adjacent tissues, and cancer tissue samples have higher HEC. This study provides new data for immunological research on the development of PC, and provides reference for research on PC immune surveillance and T cell receptor mutation markers, laying a foundation for further research.
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Received: 09 August 2018
Published: 12 April 2019
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Corresponding Authors:
Wei-bing PAN
E-mail: 1329700025 @qq.com
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