CA Piccirillo, EM Shevach. (2001) " Cutting edge: control of CD8+ T cell activation by CD4+CD25+ immunoregulatory cells. " J Immunol 167. 1137-40 PMID: 11466326 | Abstract and Keywords

FG Gao, V Khammanivong, WJ Liu, GR Leggatt, IH Frazer, GJ Fernando. (2002) " Antigen-specific CD4+ T-cell help is required to activate a memory CD8+ T cell to a fully functional tumor killer cell. " Cancer Res 62. 6438-41 PMID: 12438231 | Abstract and Keywords

JC Hafalla, A Morrot, G Sano, G Milon, JJ Lafaille, F Zavala. (2003) " Early self-regulatory mechanisms control the magnitude of CD8+ T cell responses against liver stages of murine malaria. " J Immunol 171. 964-70 PMID: 12847268 | Abstract and Keywords

U Kumaraguru, S Suvas, PS Biswas, AK Azkur, BT Rouse. (2004) " Concomitant helper response rescues otherwise low avidity CD8+ memory CTLs to become efficient effectors in vivo. " J Immunol 172. 3719-24 PMID: 15004176 | Abstract and Keywords

S Sabbaj, MK Ghosh, BH Edwards, R Leeth, WD Decker, PA Goepfert, GM Aldrovandi. (2005) " Breast milk-derived antigen-specific CD8+ T cells: an extralymphoid effector memory cell population in humans. " J Immunol 174. 2951-6 PMID: 15728507 | Abstract and Keywords

T Boettler, HC Spangenberg, C Neumann-Haefelin, E Panther, S Urbani, C Ferrari, HE Blum, F von Weizsäcker, R Thimme. (2005) " T cells with a CD4+CD25+ regulatory phenotype suppress in vitro proliferation of virus-specific CD8+ T cells during chronic hepatitis C virus infection. " J Virol 79. 7860-7 PMID: 15919940 DOI: 10.1128/JVI.79.12.7860-7867.2005 | Abstract and Keywords

AE Albers, RL Ferris, GG Kim, K Chikamatsu, AB DeLeo, TL Whiteside. (2005) " Immune responses to p53 in patients with cancer: enrichment in tetramer+ p53 peptide-specific T cells and regulatory T cells at tumor sites. " Cancer Immunol Immunother 54. 1072-81 PMID: 15959774 DOI: 10.1007/s00262-005-0670-9 | Abstract and Keywords

T Osada, MA Morse, HK Lyerly, TM Clay. (2005) " Ex vivo expanded human CD4+ regulatory NKT cells suppress expansion of tumor antigen-specific CTLs. " Int Immunol 17. 1143-55 PMID: 16027139 DOI: 10.1093/intimm/dxh292 | Abstract and Keywords

D Homann, W Dummer, T Wolfe, E Rodrigo, AN Theofilopoulos, MB Oldstone, MG von Herrath. (2006) " Lack of intrinsic CTLA-4 expression has minimal effect on regulation of antiviral T-cell immunity. " J Virol 80. 270-80 PMID: 16352552 DOI: 10.1128/JVI.80.1.270-280.2006 | Abstract and Keywords

T Manigold, EC Shin, E Mizukoshi, K Mihalik, KK Murthy, CM Rice, CA Piccirillo, B Rehermann. (2006) " Foxp3+CD4+CD25+ T cells control virus-specific memory T cells in chimpanzees that recovered from hepatitis C. " Blood 107. 4424-32 PMID: 16478885 DOI: 10.1182/blood-2005-09-3903 | Abstract and Keywords