M Vidric, WK Suh, U Dianzani, TW Mak, TH Watts. (2005) " Cooperation between 4-1BB and ICOS in the immune response to influenza virus revealed by studies of CD28/ICOS-deficient mice. " J Immunol 175. 7288-96 PMID: 16301634 | Abstract and Keywords

AB Lyon, SR Sarawar. (2006) " Differential requirement for CD28 and CD80/86 pathways of costimulation in the long-term control of murine gammaherpesvirus-68. " Virology 356. 50-6 PMID: 16934307 DOI: 10.1016/j.virol.2006.06.039 | Abstract and Keywords

S Fuse, JJ Obar, S Bellfy, EK Leung, W Zhang, EJ Usherwood. (2006) " CD80 and CD86 control antiviral CD8+ T-cell function and immune surveillance of murine gammaherpesvirus 68. " J Virol 80. 9159-70 PMID: 16940527 DOI: 10.1128/JVI.00422-06 | Abstract and Keywords

HP Raué, MK Slifka. (2007) " Pivotal advance: CTLA-4+ T cells exhibit normal antiviral functions during acute viral infection. " J Leukoc Biol 81. 1165-75 PMID: 17215523 DOI: 10.1189/jlb.0806535 | Abstract and Keywords

Q Sun, N Brewer, K Dunham, L Chen, L Bao, R Burton, KG Lucas. (2007) " Interferon-gamma expressing EBV LMP2A-specific T cells for cellular immunotherapy. " Cell Immunol 246. 81-91 PMID: 17663985 DOI: 10.1016/j.cellimm.2007.06.004 | Abstract and Keywords

S Fuse, W Zhang, EJ Usherwood. (2008) " Control of memory CD8+ T cell differentiation by CD80/CD86-CD28 costimulation and restoration by IL-2 during the recall response. " J Immunol 180. 1148-57 PMID: 18178855 | Abstract and Keywords

JA Williams, JM Lumsden, X Yu, L Feigenbaum, J Zhang, SM Steinberg, RJ Hodes. (2008) " Regulation of thymic NKT cell development by the B7-CD28 costimulatory pathway. " J Immunol 181. 907-17 PMID: 18606642 | Abstract and Keywords

S Salek-Ardakani, R Arens, R Flynn, A Sette, SP Schoenberger, M Croft. (2009) " Preferential use of B7.2 and not B7.1 in priming of vaccinia virus-specific CD8 T cells. " J Immunol 182. 2909-18 PMID: 19234186 DOI: 10.4049/jimmunol.0803545 | Abstract and Keywords

SZ Ben-Sasson, J Hu-Li, J Quiel, S Cauchetaux, M Ratner, I Shapira, CA Dinarello, WE Paul. (2009) " IL-1 acts directly on CD4 T cells to enhance their antigen-driven expansion and differentiation. " Proc Natl Acad Sci U S A 106. 7119-24 PMID: 19359475 DOI: 10.1073/pnas.0902745106 | Abstract and Keywords

H Bour-Jordan, JA Bluestone. (2009) " Regulating the regulators: costimulatory signals control the homeostasis and function of regulatory T cells. " Immunol Rev 229. 41-66 PMID: 19426214 DOI: 10.1111/j.1600-065X.2009.00775.x | Abstract and Keywords