{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T08:09:51Z","timestamp":1779178191262,"version":"3.51.4"},"reference-count":29,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2018,8,1]],"date-time":"2018-08-01T00:00:00Z","timestamp":1533081600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,8,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The lung is a complex organ with anatomically distinct pools of T cells that play specific roles in combating infection. Our knowledge regarding the generation and\/or maintenance of immunity by parenchymal or circulating T cells has been gathered from either persistent (&amp;gt;60 d) or rapidly cleared (&amp;lt;10 d) infections. However, the roles of these distinct T cell pools in infections that are cleared over the course of several weeks are not understood. Clearance of the highly virulent intracellular bacterium Francisella tularensis subspecies tularensis (Ftt) following pulmonary infection of immune animals is a protracted T cell\u2013dependent process requiring \u223c30\u201340 d and serves as a model for infections that are not acutely controlled. Using this model, we found that intranasal vaccination increased the number of tissue-resident CD4+ effector T cells, and subsequent challenge of immune mice with Ftt led to a significant expansion of polyfunctional parenchymal CD4+ effector T cells compared with the circulating pool. Despite the dominant in vivo response by parenchymal CD4+ T cells after vaccination and challenge, circulating CD4+ T cells were superior at controlling intracellular Ftt replication in vitro. Further examination in vivo revealed temporal requirements for resident and circulating T cells during Ftt infection. These requirements were in direct contrast to other pulmonary infections that are cleared rapidly in immune animals. The data in this study provide important insights into the role of specific T cell populations that will be essential for the design of novel effective vaccines against tularemia and potentially other agents of pulmonary infection.<\/jats:p>","DOI":"10.4049\/jimmunol.1800052","type":"journal-article","created":{"date-parts":[[2018,7,6]],"date-time":"2018-07-06T17:25:23Z","timestamp":1530897923000},"page":"1186-1193","source":"Crossref","is-referenced-by-count":9,"title":["Temporal Requirement for Pulmonary Resident and Circulating T Cells during Virulent <i>Francisella tularensis<\/i> Infection"],"prefix":"10.1093","volume":"201","author":[{"given":"Lydia M","family":"Roberts","sequence":"first","affiliation":[{"name":"Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Hamilton, MT 59840"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tara D","family":"Wehrly","sequence":"additional","affiliation":[{"name":"Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Hamilton, MT 59840"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robin M","family":"Ireland","sequence":"additional","affiliation":[{"name":"Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Hamilton, MT 59840"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deborah D","family":"Crane","sequence":"additional","affiliation":[{"name":"Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Hamilton, MT 59840"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dana P","family":"Scott","sequence":"additional","affiliation":[{"name":"Rocky Mountain Veterinary Branch, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Hamilton, MT 59840"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Catharine M","family":"Bosio","sequence":"additional","affiliation":[{"name":"Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Hamilton, MT 59840"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2018,8,15]]},"reference":[{"key":"2025030417571401900_r1","doi-asserted-by":"crossref","first-page":"2965","DOI":"10.4049\/jimmunol.1400019","article-title":"Cutting edge: control of Mycobacterium tuberculosis infection by a subset of lung parenchyma-homing CD4 T cells","volume":"192","author":"Sakai","year":"2014","journal-title":"J. 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