PMID- 27689397 OWN - NLM STAT- MEDLINE DCOM- 20180213 LR - 20181113 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 7 IP - 44 DP - 2016 Nov 1 TI - A CD22-reactive TCR from the T-cell allorepertoire for the treatment of acute lymphoblastic leukemia by TCR gene transfer. PG - 71536-71547 LID - 10.18632/oncotarget.12247 [doi] AB - CD22 is currently evaluated as a target-antigen for the treatment of B-cell malignancies using chimeric antigen receptor (CAR)-engineered T-cells or monoclonal antibodies (mAbs). CAR- and mAbs-based immunotherapies have been successfully applied targeting other antigens, however, occurrence of refractory disease to these interventions urges the identification of additional strategies. Here, we identified a TCR recognizing the CD22-derived peptide RPFPPHIQL (CD22RPF) presented in human leukocyte antigen (HLA)-B*07:02. To overcome tolerance to self-antigens such as CD22, we exploited the immunogenicity of allogeneic HLA. CD22RPF-specific T-cell clone 9D4 was isolated from a healthy HLA-B*07:02neg individual, efficiently produced cytokines upon stimulation with primary acute lymphoblastic leukemia and healthy B-cells, but did not react towards healthy hematopoietic and nonhematopoietic cell subsets, including dendritic cells (DCs) and macrophages expressing low levels of CD22. Gene transfer of TCR-9D4 installed potent CD22-specificity onto recipient CD8+ T-cells that recognized and lysed primary B-cell leukemia. TCR-transduced T-cells spared healthy CD22neg hematopoietic cell subsets but weakly lysed CD22low-expressing DCs and macrophages. CD22-specific TCR-engineered T-cells could form an additional immunotherapeutic strategy with a complementary role to CAR- and antibody-based interventions in the treatment of B-cell malignancies. However, CD22 expression on non-B-cells may limit the attractiveness of CD22 as target-antigen in cellular immunotherapy. FAU - Jahn, Lorenz AU - Jahn L AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - Hagedoorn, Renate S AU - Hagedoorn RS AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - van der Steen, Dirk M AU - van der Steen DM AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - Hombrink, Pleun AU - Hombrink P AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. AD - Department of Hematopoiesis, Sanquin Research, 1006 AD Amsterdam, The Netherlands. FAU - Kester, Michel G D AU - Kester MG AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - Schoonakker, Marjolein P AU - Schoonakker MP AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - de Ridder, Danielle AU - de Ridder D AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - van Veelen, Peter A AU - van Veelen PA AD - Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - Falkenburg, J H Frederik AU - Falkenburg JH AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. FAU - Heemskerk, Mirjam H M AU - Heemskerk MH AD - Department of Hematology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands. LA - eng PT - Journal Article PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 RN - 0 (CD22 protein, human) RN - 0 (Epitopes) RN - 0 (HLA-B Antigens) RN - 0 (Receptors, Antigen, T-Cell) RN - 0 (Sialic Acid Binding Ig-like Lectin 2) SB - IM MH - CD8-Positive T-Lymphocytes/*immunology MH - Epitopes MH - Gene Transfer Techniques MH - HLA-B Antigens/immunology MH - Humans MH - Immunotherapy, Adoptive MH - Precursor Cell Lymphoblastic Leukemia-Lymphoma/*therapy MH - Receptors, Antigen, T-Cell/*genetics MH - Sialic Acid Binding Ig-like Lectin 2/*immunology PMC - PMC5342099 OTO - NOTNLM OT - CD22 OT - TCR gene transfer OT - acute lymphoblastic leukemia OT - allogeneic HLA OT - immunotherapy COIS- CONFLICTS OF INTEREST The authors declare no competing interests. EDAT- 2016/10/01 06:00 MHDA- 2018/02/14 06:00 PMCR- 2016/11/01 CRDT- 2016/10/01 06:00 PHST- 2016/06/13 00:00 [received] PHST- 2016/09/19 00:00 [accepted] PHST- 2016/10/01 06:00 [pubmed] PHST- 2018/02/14 06:00 [medline] PHST- 2016/10/01 06:00 [entrez] PHST- 2016/11/01 00:00 [pmc-release] AID - 12247 [pii] AID - 10.18632/oncotarget.12247 [doi] PST - ppublish SO - Oncotarget. 2016 Nov 1;7(44):71536-71547. doi: 10.18632/oncotarget.12247.