{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T12:41:59Z","timestamp":1791981719620,"version":"4.4.0"},"reference-count":50,"publisher":"American Society for Microbiology","issue":"10","license":[{"start":{"date-parts":[[2024,10,3]],"date-time":"2024-10-03T00:00:00Z","timestamp":1727913600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,10,3]],"date-time":"2024-10-03T00:00:00Z","timestamp":1727913600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/501100002322","name":">Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"crossref","award":["99999.009868\/ 2014-03"],"award-info":[{"award-number":["99999.009868\/ 2014-03"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"crossref","award":["141586\/2013-3"],"award-info":[{"award-number":["141586\/2013-3"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001807","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo","doi-asserted-by":"crossref","award":["2011\/12664-5"],"award-info":[{"award-number":["2011\/12664-5"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001807","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo","doi-asserted-by":"crossref","award":["2023\/05910-7"],"award-info":[{"award-number":["2023\/05910-7"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/100000009","name":"Foundation for the National Institutes of Health","doi-asserted-by":"crossref","award":["AI053067"],"award-info":[{"award-number":["AI053067"]}],"id":[{"id":"10.13039\/100000009","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001807","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo","doi-asserted-by":"crossref","award":["2017\/14821-7"],"award-info":[{"award-number":["2017\/14821-7"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001807","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo","doi-asserted-by":"crossref","award":["2022\/12006-2"],"award-info":[{"award-number":["2022\/12006-2"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Microbiol Spectr"],"published-print":{"date-parts":[[2024,10,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:sec>\n            <jats:title\/>\n            <jats:p>\n              Atypical enteropathogenic\n              <jats:italic>Escherichia coli<\/jats:italic>\n              (aEPEC) is a significant cause of diarrhea in low- and middle-income countries. Certain aEPEC strains, including the Brazilian representative strain of serotype O51:H40 called aEPEC 1711-4, can use flagella to attach to, invade, and persist in T84 and Caco-2 intestinal cells. It can also translocate from the gut to extraintestinal sites in a rat model. Although various aspects of the virulence of this strain were studied and the requirement of a type III secretion system for the efficiency of the invasion process was demonstrated, the expression of the locus of enterocyte effacement (LEE) genes during the invasion and intracellular persistence remains unclear. To address this question, the expression of flagella and the different LEE operons was evaluated during kinetic experiments of the interaction of aEPEC 1711-4 with enterocytes\n              <jats:italic>in vitro<\/jats:italic>\n              . The genome of the strain was also sequenced. The results showed that flagella expression remained unchanged, but the expression of\n              <jats:italic>eae<\/jats:italic>\n              and\n              <jats:italic>escJ<\/jats:italic>\n              increased during the early interaction and invasion of aEPEC 1711-4 into Caco-2 cells, and there was no change 24 h post-infection during the persistence period. The number of actin accumulation foci formed on HeLa cells also increased during the 6-h analysis. No known gene related to the invasion process was identified in the genome of aEPEC 1711-4, which was shown to belong to the global EPEC lineage 10. These findings suggest that the LEE components and the intimate adherence promoted by intimin are necessary for the invasion and persistence of aEPEC 1711-4, but the detailed mechanism needs further study.\n            <\/jats:p>\n            <jats:sec>\n              <jats:title>IMPORTANCE<\/jats:title>\n              <jats:p>\n                Atypical enteropathogenic\n                <jats:italic>Escherichia coli<\/jats:italic>\n                (aEPEC) is a major cause of diarrhea, especially in low- and middle-income countries, like Brazil. However, due to the genome heterogeneity of each clonal group, it is difficult to comprehend the pathogenicity of this strain fully. Among aEPEC strains, 1711-4 can invade eukaryotic cells\n                <jats:italic>in vitro<\/jats:italic>\n                , cross the gut barrier, and reach extraintestinal sites in animal models. By studying how different known aEPEC virulence factors are expressed during the invasion process, we can gain insight into the commonalities of this phenotype among other aEPEC strains. This will help in developing preventive measures to control infections caused by invasive strains. No known virulence-encoding genes linked to the invasion process were found. Nevertheless, additional studies are still necessary to evaluate the role of other factors in this phenotype.\n              <\/jats:p>\n            <\/jats:sec>\n          <\/jats:sec>","DOI":"10.1128\/spectrum.00304-24","type":"journal-article","created":{"date-parts":[[2024,8,27]],"date-time":"2024-08-27T13:01:50Z","timestamp":1724763710000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":3,"title":["Expression of the locus of enterocyte effacement genes during the invasion process of the atypical enteropathogenic\n            <i>Escherichia coli<\/i>\n            1711-4 strain of serotype O51:H40"],"prefix":"10.1128","volume":"12","author":[{"given":"Fabiano T.","family":"Rom\u00e3o","sequence":"first","affiliation":[{"name":"Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo, Brazil"},{"name":"Department of Microbiology, UT Southwestern Medical Center, Dallas, Texas, USA"},{"name":"Department of Biochemistry, UT Southwestern Medical Center, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0833-4585","authenticated-orcid":true,"given":"Ana C. M.","family":"Santos","sequence":"additional","affiliation":[{"name":"Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan J.","family":"Pu\u00f1o-Sarmiento","sequence":"additional","affiliation":[{"name":"Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0819-7904","authenticated-orcid":true,"given":"Vanessa","family":"Sperandio","sequence":"additional","affiliation":[{"name":"Department of Microbiology, UT Southwestern Medical Center, Dallas, Texas, USA"},{"name":"Department of Biochemistry, UT Southwestern Medical Center, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodrigo T.","family":"Hernandes","sequence":"additional","affiliation":[{"name":"Departamento de Ci\u00eancias Qu\u00edmicas e Biol\u00f3gicas, Instituto de Bioci\u00eancias, Universidade Estadual Paulista, Botucatu, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4525-8705","authenticated-orcid":true,"given":"T\u00e2nia A. T.","family":"Gomes","sequence":"additional","affiliation":[{"name":"Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1017\/S0950268818002595"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bjm.2016.10.015"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid0805.010385"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1574-6968.2009.01664.x"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.3389\/fcimb.2016.00129"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.92.5.1664"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1574-6968.2009.01735.x"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.01752-07"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pntd.0008373"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.01854-07"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid1010.031093"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetmic.2018.10.023"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1086\/318821"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00177-09"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.2174\/1874285801105010065"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1590\/s0100-879x2011007500105"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1155\/2014\/797508"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1038\/nmeth.1220"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.1128\/mBio.01025-13"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1111\/2049-632X.12112"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.1128\/iai.57.4.1290-1298.1989"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00693-10"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.3389\/fcimb.2020.571088"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.00895-06"},{"key":"e_1_3_3_26_2","doi-asserted-by":"publisher","DOI":"10.1128\/JB.00648-06"},{"key":"e_1_3_3_27_2","doi-asserted-by":"publisher","DOI":"10.1101\/gr.215087.116"},{"key":"e_1_3_3_28_2","doi-asserted-by":"publisher","DOI":"10.1101\/gr.214270.116"},{"key":"e_1_3_3_29_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.01269-20"},{"key":"e_1_3_3_30_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.03617-13"},{"key":"e_1_3_3_31_2","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2105-10-421"},{"key":"e_1_3_3_32_2","doi-asserted-by":"publisher","DOI":"10.1093\/jac\/dkx217"},{"key":"e_1_3_3_33_2","doi-asserted-by":"publisher","DOI":"10.1093\/jac\/dkaa345"},{"key":"e_1_3_3_34_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.02412-14"},{"key":"e_1_3_3_35_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2958.2006.05172.x"},{"key":"e_1_3_3_36_2","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gky1080"},{"key":"e_1_3_3_37_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.ppat.1000683"},{"key":"e_1_3_3_38_2","doi-asserted-by":"publisher","DOI":"10.1101\/gr.251678.119"},{"key":"e_1_3_3_39_2","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gkw1017"},{"key":"e_1_3_3_40_2","doi-asserted-by":"publisher","DOI":"10.1038\/nmicrobiol.2015.14"},{"key":"e_1_3_3_41_2","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gkab301"},{"key":"e_1_3_3_42_2","doi-asserted-by":"publisher","DOI":"10.1099\/mic.0.001328"},{"key":"e_1_3_3_43_2","doi-asserted-by":"publisher","DOI":"10.1007\/82_2018_116"},{"key":"e_1_3_3_44_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.abc9531"},{"key":"e_1_3_3_45_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.chom.2014.01.005"},{"key":"e_1_3_3_46_2","doi-asserted-by":"publisher","DOI":"10.3389\/fcimb.2016.00028"},{"key":"e_1_3_3_47_2","doi-asserted-by":"publisher","DOI":"10.1093\/jmcb\/mjp013"},{"key":"e_1_3_3_48_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.73.2.1034-1043.2005"},{"key":"e_1_3_3_49_2","doi-asserted-by":"publisher","DOI":"10.1128\/iai.58.6.1565-1571.1990"},{"key":"e_1_3_3_50_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1462-5822.2007.01054.x"},{"key":"e_1_3_3_51_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00881-15"}],"container-title":["Microbiology Spectrum"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/spectrum.00304-24","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/spectrum.00304-24","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,3]],"date-time":"2024-10-03T13:03:47Z","timestamp":1727960627000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.asm.org\/doi\/10.1128\/spectrum.00304-24"}},"subtitle":[],"editor":[{"given":"Ana-Maria","family":"Dragoi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2024,10,3]]},"references-count":50,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2024,10,3]]}},"alternative-id":["10.1128\/spectrum.00304-24"],"URL":"https:\/\/doi.org\/10.1128\/spectrum.00304-24","relation":{},"ISSN":["2165-0497"],"issn-type":[{"value":"2165-0497","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,10,3]]},"assertion":[{"value":"2024-02-02","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-07-01","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-08-27","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e00304-24"}}