Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-7-23
pubmed:abstractText
We have investigated the possible usefulness of recombinant canarypox virus (ALVAC) encoding the melanoma-associated Ag, Melan-A/MART-1 (MART-1), in cancer immunotherapy, using a dendritic cell (DC)-based approach. ALVAC MART-1-infected DC express, and are able to process and present, the Ag coded by the viral vector. One consistent feature of infection by ALVAC is that these viruses induce apoptosis, and we show cross-presentation of Ag when uninfected DC are cocultured with ALVAC MART-1-infected DC. Uptake of apoptotic virally infected DC by uninfected DC and subsequent expression of tumor Ag in the latter were verified by flow cytometry analysis, image cytometry, and confocal microscopy. Functional activity was monitored in vitro by the stimulation of a MART-1-specific cytotoxic T cell clone. Heightened efficiency in Ag presentation is evidenced in the 2- to 3-fold increase in IFN-gamma production by the T cell clone, as compared with the ALVAC-infected DC alone. Cocultures of ALVAC MART-1-infected and uninfected DC are able to induce MART-1-specific T cell immune responses, as assessed by HLA class I/peptide tetramer binding, IFN-gamma ELISPOT assays, and cytotoxicity tests. Overall, our data indicate that DC infected with recombinant canarypox viruses may represent an efficient presentation platform for tumor Ags, which can be exploited in clinical studies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
167
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1795-802
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:11466405-Antigen Presentation, pubmed-meshheading:11466405-Antigens, Neoplasm, pubmed-meshheading:11466405-Apoptosis, pubmed-meshheading:11466405-Avipoxvirus, pubmed-meshheading:11466405-Cancer Vaccines, pubmed-meshheading:11466405-Cell Differentiation, pubmed-meshheading:11466405-Cells, Cultured, pubmed-meshheading:11466405-Clone Cells, pubmed-meshheading:11466405-Coculture Techniques, pubmed-meshheading:11466405-Cytotoxicity, Immunologic, pubmed-meshheading:11466405-Dendritic Cells, pubmed-meshheading:11466405-Genetic Vectors, pubmed-meshheading:11466405-Humans, pubmed-meshheading:11466405-Leukocytes, Mononuclear, pubmed-meshheading:11466405-Lymphocyte Activation, pubmed-meshheading:11466405-MART-1 Antigen, pubmed-meshheading:11466405-Melanoma, pubmed-meshheading:11466405-Neoplasm Proteins, pubmed-meshheading:11466405-Phagocytosis, pubmed-meshheading:11466405-Tumor Cells, Cultured, pubmed-meshheading:11466405-Vaccines, Synthetic, pubmed-meshheading:11466405-Viral Vaccines
pubmed:year
2001
pubmed:articleTitle
Cross-presentation by dendritic cells of tumor antigen expressed in apoptotic recombinant canarypox virus-infected dendritic cells.
pubmed:affiliation
Unité de Biologie Moléculaire du Gène, Institut National de la Santé et de la Recherche Médicale Unité 277, Institut Pasteur, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France. iris@pasteur.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't