{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T19:23:42Z","timestamp":1791141822742,"version":"4.1.0"},"reference-count":41,"publisher":"National Academy of Sciences","issue":"26","content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2003,12,23]]},"abstract":"<jats:p>\n                    Type 1 immunity relies on the differentiation of two major subsets of T lymphocytes, the CD4\n                    <jats:sup>+<\/jats:sup>\n                    T helper (Th) cell and the CD8\n                    <jats:sup>+<\/jats:sup>\n                    cytotoxic T cell, that direct inflammatory and cytotoxic responses essential for the destruction of intracellular and extracellular pathogens. In contrast to CD4 cells, little is known about transcription factors that control the transition from the CD8 na\u00efve to effector cell stage. Here, we report that the transcription factor T-bet, known to regulate Th cell differentiation, also controls the generation of the CD8\n                    <jats:sup>+<\/jats:sup>\n                    cytotoxic effector cell. Antigen-driven generation of effector CD8\n                    <jats:sup>+<\/jats:sup>\n                    cells was impaired in OT-I T cell receptor transgenic mice lacking T-bet, resulting in diminished cytotoxicity and a marked shift in cytokine secretion profiles. Furthermore, mice lacking T-bet responded poorly to infection with lymphocytic choriomeningitis virus. T-bet is a key player in the generation of type 1 immunity, in both Th and T cytotoxic cells.\n                  <\/jats:p>","DOI":"10.1073\/pnas.2636938100","type":"journal-article","created":{"date-parts":[[2003,12,23]],"date-time":"2003-12-23T12:58:11Z","timestamp":1072184291000},"page":"15818-15823","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":374,"title":["Antigen-driven effector CD8 T cell function regulated by T-bet"],"prefix":"10.1073","volume":"100","author":[{"given":"Brandon M.","family":"Sullivan","sequence":"first","affiliation":[{"name":"Department of Immunology and Infectious Diseases, Harvard School of Public Health, and Department of Medicine, Harvard Medical School, Boston, MA 02115; and Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA 92121"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amy","family":"Juedes","sequence":"additional","affiliation":[{"name":"Department of Immunology and Infectious Diseases, Harvard School of Public Health, and Department of Medicine, Harvard Medical School, Boston, MA 02115; and Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA 92121"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susanne J.","family":"Szabo","sequence":"additional","affiliation":[{"name":"Department of Immunology and Infectious Diseases, Harvard School of Public Health, and Department of Medicine, Harvard Medical School, Boston, MA 02115; and Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA 92121"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"von Herrath","sequence":"additional","affiliation":[{"name":"Department of Immunology and Infectious Diseases, Harvard School of Public Health, and Department of Medicine, Harvard Medical School, Boston, MA 02115; and Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA 92121"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurie H.","family":"Glimcher","sequence":"additional","affiliation":[{"name":"Department of Immunology and Infectious Diseases, Harvard School of Public Health, and Department of Medicine, Harvard Medical School, Boston, MA 02115; and Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA 92121"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2003,12,12]]},"reference":[{"key":"e_1_3_2_1_2","doi-asserted-by":"publisher","DOI":"10.1038\/nri778"},{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0952-7915(02)00333-3"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.immunol.21.120601.141114"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1084\/jem.189.8.1355"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1074900"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0092-8674(00)80702-3"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1065543"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1084\/jem.20011956"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1065544"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.261570598"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1038\/ni794"},{"key":"e_1_3_2_12_2","first-page":"3.11.1","volume":"1","year":"1994","unstructured":"Wunderlich, J., Shearer, G. & Livingstone, A. 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