PMID- 10389916 OWN - NLM STAT- MEDLINE DCOM- 19990930 LR - 20210102 IS - 1078-0432 (Print) IS - 1078-0432 (Linking) VI - 5 IP - 6 DP - 1999 Jun TI - A Phase I study of active immunotherapy with carcinoembryonic antigen peptide (CAP-1)-pulsed, autologous human cultured dendritic cells in patients with metastatic malignancies expressing carcinoembryonic antigen. PG - 1331-8 AB - Dendritic cells (DCs), antigen-presenting cells capable of priming naive T cells to specific antigens in an HLA-restricted fashion, have been demonstrated to induce protective T cell-mediated immunity in tumor-bearing animals. We performed this study to test the safety, feasibility, and clinical response of immunizations with in vitro-generated DCs, loaded with an HLA-A2-restricted peptide fragment of the tumor antigen carcinoembryonic antigen (CEA), for the treatment of patients with advanced CEA-expressing malignancies. Cell preparations enriched for autologous DCs were generated from the patients' plastic adherent peripheral blood mononuclear cells in serum-free media supplemented with granulocyte macrophage colony-stimulating factor and interleukin-4. Within the cell preparation, 66% of the cells expressed the phenotype typical for DCs (CD86high, HLA-DRhigh, and CD14low). The DCs were loaded with the CEA peptide CAP-1 and cryopreserved. Groups of three to six patients received four weekly or biweekly i.v. infusions of the CAP-1-loaded DC in escalating dose levels of 1 x 10(7), 3 x 10(7), and 1 x 10(8) cells/dose. A subset of the patients in the last group also received intradermal injections of 1 x 10(6) DCs. There were no toxicities directly referable to the treatments. One patient had a minor response, and one had stable disease. Skin punch biopsy at DC injection sites demonstrated pleomorphic infiltrates in the three patients evaluated. We conclude that it is feasible and safe to generate and administer large numbers of previously cryopreserved DCs loaded with CAP-1 peptide to patients with advanced malignancies. FAU - Morse, M A AU - Morse MA AD - Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710, USA. morse004@mc.duke.edu FAU - Deng, Y AU - Deng Y FAU - Coleman, D AU - Coleman D FAU - Hull, S AU - Hull S FAU - Kitrell-Fisher, E AU - Kitrell-Fisher E FAU - Nair, S AU - Nair S FAU - Schlom, J AU - Schlom J FAU - Ryback, M E AU - Ryback ME FAU - Lyerly, H K AU - Lyerly HK LA - eng GR - M01RR00030/RR/NCRR NIH HHS/United States GR - U01CA72162-01/CA/NCI NIH HHS/United States PT - Clinical Trial PT - Clinical Trial, Phase I PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (Antibodies, Antinuclear) RN - 0 (Antigens, CD) RN - 0 (Carcinoembryonic Antigen) RN - 0 (HLA-A2 Antigen) RN - 0 (Peptide Fragments) RN - 9009-79-4 (Rheumatoid Factor) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Antibodies, Antinuclear/blood MH - Antigens, CD/metabolism MH - Carcinoembryonic Antigen/biosynthesis/blood/*immunology MH - Cells, Cultured MH - Dendritic Cells/*immunology/metabolism/*transplantation MH - Female MH - HLA-A2 Antigen/immunology MH - Humans MH - Immunotherapy, Active/*methods MH - Male MH - Middle Aged MH - Neoplasms/blood/immunology/mortality/*therapy MH - Peptide Fragments/*immunology MH - Rheumatoid Factor/blood MH - Survival Rate MH - Transplantation, Autologous/immunology EDAT- 1999/07/02 00:00 MHDA- 1999/07/02 00:01 CRDT- 1999/07/02 00:00 PHST- 1999/07/02 00:00 [pubmed] PHST- 1999/07/02 00:01 [medline] PHST- 1999/07/02 00:00 [entrez] PST - ppublish SO - Clin Cancer Res. 1999 Jun;5(6):1331-8.