{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T06:11:48Z","timestamp":1790143908763,"version":"4.0.1"},"reference-count":40,"publisher":"American Society for Microbiology","issue":"20","license":[{"start":{"date-parts":[[2017,10,15]],"date-time":"2017-10-15T00:00:00Z","timestamp":1508025600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"name":"Sylvester Comprehensive Cancer Center, HTLV-1 Program Project Internal Award"},{"DOI":"10.13039\/100000002","name":"HHS | National Institutes of Health","doi-asserted-by":"publisher","award":["RR013986"],"award-info":[{"award-number":["RR013986"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"HHS | National Institutes of Health","doi-asserted-by":"publisher","award":["OD011133"],"award-info":[{"award-number":["OD011133"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2017,10,15]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Baboons naturally infected with simian T lymphotropic virus (STLV) are a potentially useful model system for the study of vaccination against human T lymphotropic virus (HTLV). Here we expanded the number of available full-length baboon STLV-1 sequences from one to three and related the T cell responses that recognize the immunodominant Tax protein to the<jats:italic>tax<\/jats:italic>sequences present in two individual baboons. Continuously growing T cell lines were established from two baboons, animals 12141 and 12752. Next-generation sequencing (NGS) of complete STLV genome sequences from these T cell lines revealed them to be closely related but distinct from each other and from the baboon STLV-1 sequence in the NCBI sequence database. Overlapping peptides corresponding to each unique Tax sequence and to the reference baboon Tax sequence were used to analyze recognition by T cells from each baboon using intracellular cytokine staining (ICS). Individual baboons expressed more gamma interferon and tumor necrosis factor alpha in response to Tax peptides corresponding to their own STLV-1 sequence than in response to Tax peptides corresponding to the reference baboon STLV-1 sequence. Thus, our analyses revealed distinct but closely related STLV-1 genome sequences in two baboons, extremely low heterogeneity of STLV sequences within each baboon, no evidence for superinfection within each baboon, and a ready ability of T cells in each baboon to recognize circulating Tax sequences. While amino acid substitutions that result in escape from CD8<jats:sup>+<\/jats:sup>T cell recognition were not observed, premature stop codons were observed in 7% and 56% of<jats:italic>tax<\/jats:italic>sequences from peripheral blood mononuclear cells from animals 12141 and 12752, respectively.<\/jats:p><jats:p><jats:bold>IMPORTANCE<\/jats:bold>It has been estimated that approximately 100,000 people suffer serious morbidity and 10,000 people die each year from the consequences associated with human T lymphotropic virus (HTLV) infection. There are no antiviral drugs and no preventive vaccine. A preventive vaccine would significantly impact the global burden associated with HTLV infections. Here we provide fundamental information on the simian T lymphotropic virus (STLV) naturally transmitted in a colony of captive baboons. The limited viral sequence heterogeneity in individual baboons, the identity of the viral gene product that is the major target of cellular immune responses, the persistence of viral amino acid sequences that are the major targets of cellular immune responses, and the emergence<jats:italic>in vivo<\/jats:italic>of truncated variants in the major target of cellular immune responses all parallel what are seen with HTLV infection of humans. These results justify the use of STLV-infected baboons as a model system for vaccine development efforts.<\/jats:p>","DOI":"10.1128\/jvi.00950-17","type":"journal-article","created":{"date-parts":[[2017,7,20]],"date-time":"2017-07-20T00:50:22Z","timestamp":1500511822000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":6,"title":["Simian T Lymphotropic Virus 1 Infection of Papio anubis:<i>tax<\/i>Sequence Heterogeneity and T Cell Recognition"],"prefix":"10.1128","volume":"91","author":[{"given":"James M.","family":"Termini","sequence":"first","affiliation":[{"name":"Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1773-2406","authenticated-orcid":false,"given":"Diogo M.","family":"Magnani","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helen S.","family":"Maxwell","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William","family":"Lauer","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iris","family":"Castro","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jerilyn","family":"Pecotte","sequence":"additional","affiliation":[{"name":"Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Glen N.","family":"Barber","sequence":"additional","affiliation":[{"name":"Department of Cell Biology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David I.","family":"Watkins","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6851-3003","authenticated-orcid":false,"given":"Ronald C.","family":"Desrosiers","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.77.12.7415"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrc2111"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1038\/sj.onc.1208968"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1473-3099(07)70081-6"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.00063-09"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1186\/1742-4690-10-118"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.3389\/fmicb.2012.00322"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1128\/jvi.68.4.2693-2707.1994"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1128\/JVI.00690-06"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1128\/jvi.69.11.6980-6993.1995"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1089\/aid.1996.12.403"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1081\/CNV-100103133"},{"key":"e_1_3_2_14_2","first-page":"288","article-title":"Simian T-lymphotropic virus-associated lymphoma in 2 naturally infected baboons: T-cell clonal expansion and immune response during tumor development","volume":"63","author":"d'Offay JM","year":"2013","unstructured":"d'Offay JM Eberle R Wolf RF Kosanke SD Doocy KR Ayalew S Mansfeild KG White GL . 2013. 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