References: | Nishimura, H., Agata, Y., Kawasaki, A., Sato, M., Imamura, S., Minato, N., ... & Honjo, T. (1996). Developmentally regulated expression of the PD-1 protein on the surface of double-negative (CD4–CD8–) thymocytes.International immunology,8(5), 773-780. Salama, A. D., Chitnis, T., Imitola, J., Ansari, M. J. I., Akiba, H., Tushima, F., ... & Khoury, S. J. (2003). Critical role of the programmed death-1 (PD-1) pathway in regulation of experimental autoimmune encephalomyelitis.The Journal of experimental medicine,198(1), 71-78. Carreno, B. M., & Collins, M. (2002). The B7 family of ligands and its receptors: new pathways for costimulation and inhibition of immune responses.Annual review of immunology,20(1), 29-53. |