{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T02:16:04Z","timestamp":1790907364824,"version":"4.1.0"},"reference-count":41,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2024,7,15]],"date-time":"2024-07-15T00:00:00Z","timestamp":1721001600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,7,15]],"date-time":"2024-07-15T00:00:00Z","timestamp":1721001600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100009169","name":"Assiut University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100009169","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Clin Exp Med"],"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Primary immune thrombocytopenia (ITP) is an acquired autoimmune disorder characterized by an isolated decrease in platelets below 100\u2009\u00d7\u200910<jats:sup>9<\/jats:sup>\/l after the exclusion of other conditions associated with thrombocytopenia. We investigated the role of different memory T-cell subsets, including T stem cell memory (T<jats:sub>SCM<\/jats:sub>), in children diagnosed with primary ITP and its association with therapeutic duration. This case\u2013control study included 39 pediatric patients with acute ITP admitted to the Children's Hospital at Assiut University. Using a FACSCanto flow cytometer, CD8\u2009+\u2009and CD4\u2009+\u2009T-lymphocytes were gated. Five different subsets were characterized in each of these cells according to CD45RO and CD45RA expression. Afterward, gating was performed based on CCR7, CD95, and CD27. Examination of the CD8\u2009+\u2009T cells subpopulation showed that Central memory T (T<jats:sub>CM<\/jats:sub>) and CD8<jats:sup>+<\/jats:sup> Na\u00efve T (T<jats:sub>N<\/jats:sub>) cells were significantly lower in ITP patients than in healthy children (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.0001) and (<jats:italic>p<\/jats:italic>\u2009=\u20090.01), respectively. In addition, CD8\u2009+\u2009T<jats:sub>EMRA<\/jats:sub> was significantly higher in ITP children than in controls (<jats:italic>p<\/jats:italic>\u2009=\u20090.001). CD4\u2009+\u2009T<jats:sub>CM<\/jats:sub> cells were significantly lower in the ITP patient group (<jats:italic>p<\/jats:italic>\u2009=\u20090.04). However, CD4\u2009+\u2009T<jats:sub>EM<\/jats:sub> was significantly higher in patients than controls (<jats:italic>p<\/jats:italic>\u2009=\u20090.04). Our research found that ITP patients had an imbalance in the ratio of CD4<jats:sup>+<\/jats:sup> to CD8<jats:sup>+<\/jats:sup> T cells in the peripheral blood and that T<jats:sub>CM<\/jats:sub> cells may be involved in the pathogenetic mechanism of ITP. T<jats:sub>CMs<\/jats:sub> could help in prediction of patients with higher risk of developing ITP.<\/jats:p>","DOI":"10.1007\/s10238-024-01386-0","type":"journal-article","created":{"date-parts":[[2024,7,15]],"date-time":"2024-07-15T03:08:43Z","timestamp":1721012923000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Detection and characterization of autoreactive memory stem T-cells in children with acute immune thrombocytopenia"],"prefix":"10.1007","volume":"24","author":[{"given":"Asmaa M.","family":"Zahran","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Omnia H.","family":"El-Badawy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hayam","family":"Mahran","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eman","family":"Gad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Khaled","family":"Saad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Salma G.","family":"Morsy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"Makboul","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zeinab Albadry M.","family":"Zahran","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amira","family":"Elhoufey","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hamad Ghaleb","family":"Dailah","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Khalid I.","family":"Elsayh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,7,15]]},"reference":[{"issue":"10","key":"1386_CR1","doi-asserted-by":"publisher","first-page":"a037929","DOI":"10.1101\/cshperspect.a037929","volume":"13","author":"Y Muroyama","year":"2021","unstructured":"Muroyama Y, Wherry EJ. 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