Identification and characterization of the T cell receptor (TCR) repertoire of the cynomolgus macaque (Macaca Fascicularis)

Biology Biology
Cell Atlas Cell Atlas
Computational Methods Computational Methods
Genomics Genomics
Immunology Immunology
Infectious Disease Infectious Disease
Alex K. Shalek Alex K. Shalek
James Gatter James Gatter
Josh Bromley Josh Bromley
Samira Ibrahim Samira Ibrahim
Sarah Nyquist Sarah Nyquist
Tasneem Jivanjee Tasneem Jivanjee

Jaiswal et al.▾ Jaiswal, S., Nyquist, S.K., Boyce, S., Jivanjee, T., Ibrahim, S., Bromley, J.D., Gatter, G.J., Gideon, H., Patel, K., Ganchua, S.K., Berger, B., Fortune, S.M., Flynn, J.L., Shalek, A.K., Behar, S.M.

BMC Genomics , Volume 23

February, 2023


Cynomolgus macaque (Macaca fascicularis) is an attractive animal model for the study of human disease and is extensively used in biomedical research. Cynomolgus macaques share behavioral, physiological, and genomic traits with humans and recapitulate human disease manifestations not observed in other animal species. To improve the use of the cynomolgus macaque model to investigate immune responses, we defined and characterized the T cell receptor (TCR) repertoire. We identified and analyzed the alpha (TRA), beta (TRB), gamma (TRG), and delta (TRD) TCR loci of the cynomolgus macaque. The expressed repertoire was determined using 22 unique lung samples from Mycobacterium tuberculosis infected cynomolgus macaques by single cell RNA sequencing. Expressed TCR alpha (TRAV) and beta (TRBV) variable region genes were enriched and identified using gene specific primers, which allowed their functional status to be determined. Analysis of the primers used for cynomolgus macaque TCR variable region gene enrichment showed they could also be used to amplify rhesus macaque (M. mulatta) variable region genes. The genomic organization of the cynomolgus macaque has great similarity with the rhesus macaque and they shared > 90% sequence similarity with the human TCR repertoire. The identification of the TCR repertoire facilitates analysis of T cell immunity in cynomolgus macaques.