PMID- 22130160 OWN - NLM STAT- MEDLINE DCOM- 20120427 LR - 20220317 IS - 1537-4513 (Electronic) IS - 1524-9557 (Print) IS - 1524-9557 (Linking) VI - 35 IP - 1 DP - 2012 Jan TI - A novel dendritic cell-based immunization approach for the induction of durable Th1-polarized anti-HER-2/neu responses in women with early breast cancer. PG - 54-65 LID - 10.1097/CJI.0b013e318235f512 [doi] AB - Twenty-seven patients with HER-2/neu overexpressing ductal carcinoma in situ of the breast were enrolled in a neoadjuvant immunization trial for safety and immunogenicity of DC1-polarized dendritic cells (DC1) pulsed with 6 HER-2/neu promiscuous major histocompatibility complex class II-binding peptides and 2 additional human leukocyte antigen (HLA)-A2.1 class I-binding peptides. DC1 were generated with interferon-gamma and a special clinical-grade bacterial endotoxin (lipopolysaccharide) and administered directly into groin lymph nodes 4 times at weekly intervals before scheduled surgical resection of ductal carcinoma in situ. Patients were monitored for the induction of new or enhanced antipeptide reactivity by interferon-gamma ELISPOT and enzyme-linked immunosorbentassays performed on Th cells obtained from peripheral blood or excised sentinel lymph nodes. Responses by cytotoxic T lymphocyte against HLA-A2.1-binding peptides were measured using peptide-pulsed T2 target cells or HER-2/neu-expressing or nonexpressing tumor cell lines. DC1 showed surface phenotype indistinct from "gold standard" inflammatory cocktail-activated DC, but displayed a number of distinguishing functional characteristics including the secretion of soluble factors and enhanced "killer DC" capacity against tumor cells in vitro. Postimmunization, we observed sensitization of Th cells to at least 1 class II peptide in 22 of 25 (88%; 95% exact confidence interval, 68.8%-97.5%) evaluable patients, whereas 11 of 13 (84.6%; 95% exact confidence interval, 64%-99.8%) HLA-A2.1 patients were successfully sensitized to class I peptides. Perhaps most importantly, anti-HER-2/neu peptide responses were observed up to 52-month postimmunization. These data show that even in the presence of early breast cancer such DC1 are potent inducers of durable type I-polarized immunity, suggesting potential clinical value for development of cancer immunotherapy. FAU - Koski, Gary K AU - Koski GK AD - Department of Biological Sciences, Kent State University, Kent, OH, USA. FAU - Koldovsky, Ursula AU - Koldovsky U FAU - Xu, Shuwen AU - Xu S FAU - Mick, Rosemarie AU - Mick R FAU - Sharma, Anupama AU - Sharma A FAU - Fitzpatrick, Elizabeth AU - Fitzpatrick E FAU - Weinstein, Susan AU - Weinstein S FAU - Nisenbaum, Harvey AU - Nisenbaum H FAU - Levine, Bruce L AU - Levine BL FAU - Fox, Kevin AU - Fox K FAU - Zhang, Paul AU - Zhang P FAU - Czerniecki, Brian J AU - Czerniecki BJ LA - eng GR - R01 CA096997-03/CA/NCI NIH HHS/United States GR - R01 CA096997/CA/NCI NIH HHS/United States GR - R01 CA096997-02/CA/NCI NIH HHS/United States GR - R01 CA096997-01A1/CA/NCI NIH HHS/United States GR - R01 CA096997-04A2/CA/NCI NIH HHS/United States PT - Clinical Trial PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Immunother JT - Journal of immunotherapy (Hagerstown, Md. : 1997) JID - 9706083 RN - 0 (Antigens, Neoplasm) RN - 0 (Cancer Vaccines) RN - 0 (Lipopolysaccharides) RN - 82115-62-6 (Interferon-gamma) RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Antigens, Neoplasm/immunology MH - Breast Neoplasms/immunology/pathology/*therapy MH - Cancer Vaccines/*immunology MH - Carcinoma, Ductal/immunology/pathology/*therapy MH - Cell Differentiation MH - Cells, Cultured MH - Dendritic Cells/*immunology/pathology MH - Female MH - Follow-Up Studies MH - Humans MH - Immunotherapy, Adoptive/*methods MH - Interferon-gamma/immunology/metabolism MH - Lipopolysaccharides/immunology/metabolism MH - Lymphocyte Activation MH - Neoplasm Staging MH - Receptor, ErbB-2/immunology MH - Th1 Cells/immunology PMC - PMC3241864 MID - NIHMS329490 EDAT- 2011/12/02 06:00 MHDA- 2012/04/28 06:00 PMCR- 2013/01/01 CRDT- 2011/12/02 06:00 PHST- 2011/12/02 06:00 [entrez] PHST- 2011/12/02 06:00 [pubmed] PHST- 2012/04/28 06:00 [medline] PHST- 2013/01/01 00:00 [pmc-release] AID - 10.1097/CJI.0b013e318235f512 [doi] PST - ppublish SO - J Immunother. 2012 Jan;35(1):54-65. doi: 10.1097/CJI.0b013e318235f512.