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NOD.Cg-<jats:italic>Prkdc<jats:sup>scid<\/jats:sup>\n                     <\/jats:italic> Il2rg<jats:italic>\n                        <jats:sup>tm1Wjl<\/jats:sup>\n                     <\/jats:italic>\/SzJ (NSG) mice are one of the most highly immunodeficient strains and are universally used as a model for testing cancer-targeting mAbs. However, this strain lacks several factors necessary to fully support antibody-mediated effector functions\u2014including antibody-dependent cellular cytotoxicity, antibody-dependent cellular phagocytosis, and complement-dependent cytotoxicity (CDC)\u2014due to the absence of immune cells as well as a mutation in the <jats:italic>Hc<\/jats:italic> gene, which is needed for a functional complement system.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>We have developed a humanized mouse model using a novel NSG strain, NOD.Cg<jats:sup>\u2212Hc1<\/jats:sup>\n                     <jats:italic>Prkdc<jats:sup>scid<\/jats:sup>\n                     <\/jats:italic> Il2rgtm1Wjl\/SzJ (NSG<jats:sup>\u2212Hc1<\/jats:sup>), which contains the corrected mutation in the <jats:italic>Hc<\/jats:italic> gene to support CDC in addition to other mechanisms endowed by humanization. With this model, we reevaluated the anticancer efficacies of nanoencapsulated rituximab after xenograft of the human Burkitt lymphoma cell line 2F7-BR44.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>As expected, xenografted humanized NSG<jats:sup>\u2212Hc1<\/jats:sup> mice supported superior lymphoma clearance of native rituximab compared with the parental NSG strain. Nanoencapsulated rituximab with CXCL13 conjugation as a targeting ligand for lymphomas further enhanced antilymphoma activity in NSG<jats:sup>\u2212Hc1<\/jats:sup> mice and, more importantly, mediated antilymphoma cellular responses.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>These results indicate that NSG<jats:sup>\u2212Hc1<\/jats:sup> mice can serve as a feasible model for both studying antitumor treatment using cancer targeting as well as understanding induction mechanisms of antitumor cellular immune response.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/jitc-2020-001524","type":"journal-article","created":{"date-parts":[[2021,2,16]],"date-time":"2021-02-16T19:10:20Z","timestamp":1613502620000},"page":"e001524","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":8,"title":["Nanoencapsulated rituximab mediates 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