PMID- 29632725 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231105 IS - 2162-4011 (Print) IS - 2162-402X (Electronic) IS - 2162-4011 (Linking) VI - 7 IP - 4 DP - 2018 TI - SALL4 oncogene is an immunogenic antigen presented in various HLA-DR contexts. PG - e1412030 LID - 10.1080/2162402X.2017.1412030 [doi] LID - e1412030 AB - Purpose: To investigate the immunoprevalence of SALL4-derived peptides in healthy volunteers and cancer patients. Experimental Design: A multistep approach including prediction algorithms was used to design in silico SALL4-derived peptides theoretically able to bind on common HLA-DR and HLA-A/B molecules. The presence of T-cell responses after a long term T-cell assay (28 days) against SALL4 was monitored in 14 healthy donors and the presence of T-cell responses after a short term T-cell assay (10 days) was monitored in 67 cancer patients using IFN-gamma ELISPOT assay. A T-cell clone specific for the immunoprevalent A18 K-derived peptide was isolated, characterized and used as a tool to characterize the natural processing of A18 K. Results: A SALL4 specific T-cell repertoire was present in healthy donors (8/14) and cancer patients (29/67) after short term T-cell assay. We further identified two immunoprevalant SALL4-derived peptides, R18 A and A18 K, which bind MHC-class II. In parallel, an A18 K specific Th1 clone recognized monocyte derived Dendritic Cell (moDC) loaded with SALL4 containing cell lysate. The level of IFN-gamma secreted by specific T-cell clone was greater in presence of moDC loaded with SALL4 containing cell lysate (49.23 +/- 14.02%) than with moDC alone (18.03 +/- 3.072%) (p = 0.0477) Conclusion: These results show for the first time immunogenicity of SALL4 oncogenic protein-derived peptides, especially A18 K and R18 A peptides and make them potential targets for personalized medicine. Thus, SALL4 possess major characteristics of a tumor antigen. FAU - Kroemer, Marie AU - Kroemer M AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. AD - Department of pharmacy, University hospital of Besancon, Besancon, France. FAU - Spehner, Laurie AU - Spehner L AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. FAU - Mercier-Letondal, Patricia AU - Mercier-Letondal P AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. FAU - Boullerot, Laura AU - Boullerot L AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. FAU - Kim, Stefano AU - Kim S AD - Department of medical oncology, University Hospital of Besancon, Besancon, France. FAU - Jary, Marine AU - Jary M AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. AD - Department of medical oncology, University Hospital of Besancon, Besancon, France. FAU - Galaine, Jeanne AU - Galaine J AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. FAU - Picard, Emilie AU - Picard E AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. FAU - Ferrand, Christophe AU - Ferrand C AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. FAU - Nguyen, Thierry AU - Nguyen T AD - Department of medical oncology, University Hospital of Besancon, Besancon, France. FAU - Larosa, Fabrice AU - Larosa F AD - Department of hematology, University Hospital of Besancon, Besancon, France. FAU - Adotevi, Olivier AU - Adotevi O AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. AD - Department of medical oncology, University Hospital of Besancon, Besancon, France. FAU - Godet, Yann AU - Godet Y AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. FAU - Borg, Christophe AU - Borg C AD - University of Bourgogne Franche-Comte (UBFC), INSERM, EFS BFC, UMR1098, Interactions hote-greffon-tumeur - Ingenierie Cellulaire et Genique, Besancon, France. AD - Department of medical oncology, University Hospital of Besancon, Besancon, France. LA - eng PT - Journal Article DEP - 20180117 PL - United States TA - Oncoimmunology JT - Oncoimmunology JID - 101570526 PMC - PMC5889287 OTO - NOTNLM OT - Cancer OT - Immunotherapy OT - SALL4 OT - T Lymphocytes OT - Tumor antigen EDAT- 2018/04/11 06:00 MHDA- 2018/04/11 06:01 PMCR- 2019/01/17 CRDT- 2018/04/11 06:00 PHST- 2017/06/20 00:00 [received] PHST- 2017/11/11 00:00 [revised] PHST- 2017/11/26 00:00 [accepted] PHST- 2018/04/11 06:00 [entrez] PHST- 2018/04/11 06:00 [pubmed] PHST- 2018/04/11 06:01 [medline] PHST- 2019/01/17 00:00 [pmc-release] AID - 1412030 [pii] AID - 10.1080/2162402X.2017.1412030 [doi] PST - epublish SO - Oncoimmunology. 2018 Jan 17;7(4):e1412030. doi: 10.1080/2162402X.2017.1412030. eCollection 2018.