TY - JOUR
T1 - Systematic comparative evaluation of methods for investigating the TCRβ repertoire
AU - Liu, Xiao
AU - Zhang, Wei
AU - Zeng, Xiaojing
AU - Zhang, Ruifang
AU - Du, Yuanping
AU - Hong, Xueyu
AU - Cao, Hongzhi
AU - Su, Zheng
AU - Wang, Changxi
AU - Wu, Jinghua
AU - Nie, Chao
AU - Xu, Xun
AU - Kristiansen, Karsten
PY - 2016
Y1 - 2016
N2 - High-throughput sequencing has recently been applied to profile the high diversity of antibodyome/B cell receptors (BCRs) and T cell receptors (TCRs) among immune cells. To date, Multiplex PCR (MPCR) and 5′RACE are predominately used to enrich rearranged BCRs and TCRs. Both approaches have advantages and disadvantages; however, a systematic evaluation and direct comparison of them would benefit researchers in the selection of the most suitable method. In this study, we used both pooled control plasmids and spiked-in cells to benchmark the MPCR bias. RNA from three healthy donors was subsequently processed with the two methods to perform a comparative evaluation of the TCR β chain sequences. Both approaches demonstrated high reproducibility (R2 = 0.9958 and 0.9878, respectively). No differences in gene usage were identified for most V/J genes (>60%), and an average of 52.03% of the CDR3 amino acid sequences overlapped. MPCR exhibited a certain degree of bias, in which the usage of several genes deviated from 5′RACE, and some V-J pairings were lost. In contrast, there was a smaller rate of effective data from 5′RACE (11.25% less compared with MPCR). Nevertheless, the methodological variability was smaller compared with the biological variability. Through direct comparison, these findings provide novel insights into the two experimental methods, which will prove to be valuable in immune repertoire research and its interpretation.
AB - High-throughput sequencing has recently been applied to profile the high diversity of antibodyome/B cell receptors (BCRs) and T cell receptors (TCRs) among immune cells. To date, Multiplex PCR (MPCR) and 5′RACE are predominately used to enrich rearranged BCRs and TCRs. Both approaches have advantages and disadvantages; however, a systematic evaluation and direct comparison of them would benefit researchers in the selection of the most suitable method. In this study, we used both pooled control plasmids and spiked-in cells to benchmark the MPCR bias. RNA from three healthy donors was subsequently processed with the two methods to perform a comparative evaluation of the TCR β chain sequences. Both approaches demonstrated high reproducibility (R2 = 0.9958 and 0.9878, respectively). No differences in gene usage were identified for most V/J genes (>60%), and an average of 52.03% of the CDR3 amino acid sequences overlapped. MPCR exhibited a certain degree of bias, in which the usage of several genes deviated from 5′RACE, and some V-J pairings were lost. In contrast, there was a smaller rate of effective data from 5′RACE (11.25% less compared with MPCR). Nevertheless, the methodological variability was smaller compared with the biological variability. Through direct comparison, these findings provide novel insights into the two experimental methods, which will prove to be valuable in immune repertoire research and its interpretation.
U2 - 10.1371/journal.pone.0152464
DO - 10.1371/journal.pone.0152464
M3 - Journal article
C2 - 27019362
AN - SCOPUS:84962426339
SN - 1932-6203
VL - 11
JO - PLoS Computational Biology
JF - PLoS Computational Biology
IS - 3
M1 - e0152464
ER -