| First Author | Haeryfar SM | Year | 2008 |
| Journal | J Immunol | Volume | 181 |
| Issue | 1 | Pages | 649-59 |
| PubMed ID | 18566432 | Mgi Jnum | J:137394 |
| Mgi Id | MGI:3799424 | Doi | 10.4049/jimmunol.181.1.649 |
| Citation | Haeryfar SM, et al. (2008) Terminal deoxynucleotidyl transferase establishes and broadens antiviral CD8+ T cell immunodominance hierarchies. J Immunol 181(1):649-59 |
| abstractText | The action of TdT on mouse TCR genes accounts for approximately 90% of T cell repertoire diversity. We report that in TdT-/- mice, total T(CD8+) responses to influenza and vaccinia viruses are reduced by approximately 30% relative to wild-type mice. We find that T(CD8+) responses to three subdominant influenza virus determinants are reduced to background values in TdT-/- mice while responses to three immunodominant determinants undergo a major reshuffling. A similar reshuffling occurs in T(CD8+) responses to immunodominant vaccinia virus determinants, and is clearly based on broad differences in TCR family usage and CDR3 length between wild-type and TdT-/- mice. These findings demonstrate that TdT plays a critical role in the magnitude and breadth of anti-viral T(CD8+) responses toward individual determinants and suggests that germline TCR repertoire bias toward the most dominant determinants is a major factor in establishing immunodominance hierarchies. |
