Comprehensive analysis of TCR repertoire in COVID-19 using single cell sequencing.
Genomics
; 113(2): 456-462, 2021 03.
Article
in En
| MEDLINE
| ID: mdl-33383142
T-cell receptor (TCR) is crucial in T cell-mediated virus clearance. To date, TCR bias has been observed in various diseases. However, studies on the TCR repertoire of COVID-19 patients are lacking. Here, we used single-cell V(D)J sequencing to conduct comparative analyses of TCR repertoire between 12 COVID-19 patients and 6 healthy controls, as well as other virus-infected samples. We observed distinct T cell clonal expansion in COVID-19. Further analysis of VJ gene combination revealed 6 VJ pairs significantly increased, while 139 pairs significantly decreased in COVID-19 patients. When considering the VJ combination of α and ß chains at the same time, the combination with the highest frequency on COVID-19 was TRAV12-2-J27-TRBV7-9-J2-3. Besides, preferential usage of V and J gene segments was also observed in samples infected by different viruses. Our study provides novel insights on TCR in COVID-19, which contribute to our understanding of the immune response induced by SARS-CoV-2.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Receptors, Antigen, T-Cell
/
Single-Cell Analysis
/
High-Throughput Nucleotide Sequencing
/
SARS-CoV-2
/
COVID-19
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
Genomics
Journal subject:
GENETICA
Year:
2021
Type:
Article
Affiliation country:
China