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Their interaction with dendritic cells (DCs) allows DC activation and maturation toward presentation of NET-associated antigens. Differently from other types of cell death that imply protein denaturation, NETosis preserves the proteins localized onto the DNA threads for proper enzymatic activity and conformational status, including immunogenic epitopes. Besides neutrophils, leukemic cells can release extracellular traps displaying leukemia-associated antigens, prototypically mutant nucleophosmin (NPMc+) that upon mutation translocates from nucleolus to the cytoplasm localizing onto NET threads. We tested NPMc+ immunogenicity through a NET\/DC vaccine to treat NPMc-driven myeloproliferation in transgenic and transplantable models. Vaccination with DC loaded with NPMc+ NET (NPMc+ NET\/DC) reduced myeloproliferation in transgenic mice, favoring the development of antibodies to mutant NPMc and the induction of a CD8\n                    <jats:sup>+<\/jats:sup>\n                    T-cell response. The efficacy of this vaccine was also tested in mixed NPMc\/WT bone marrow (BM) chimeras in a competitive BM transplantation setting, where the NPMc+ NET\/DC vaccination impaired the expansion of NPMc+ in favor of WT myeloid compartment. NPMc+ NET\/DC vaccination also achieved control of an aggressive leukemia transduced with mutant NPMc, effectively inducing an antileukemia CD8 T-cell memory response.\n                  <\/jats:p>","DOI":"10.7554\/elife.69257","type":"journal-article","created":{"date-parts":[[2022,4,26]],"date-time":"2022-04-26T06:15:19Z","timestamp":1650953719000},"update-policy":"https:\/\/doi.org\/10.7554\/elife.69257","source":"Crossref","is-referenced-by-count":17,"title":["Neutrophil extracellular traps arm DC vaccination against NPM-mutant myeloproliferation"],"prefix":"10.7554","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0821-6231","authenticated-orcid":true,"given":"Claudio","family":"Tripodo","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/044k9ta02","id-type":"ROR","asserted-by":"publisher"}],"name":"Tumor Immunology Unit, Department of Health Sciences, University of Palermo","place":["Palermo, 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