Linked Life Data

10068654

Source:http://linkedlifedata.com/resource/pubmed/id/10068654

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1999-3-30
pubmed:abstractText
Tumor cells that survive initial courses of chemotherapy may do so by acquiring a multidrug-resistant phenotype. This particular mechanism of drug resistance may also confer resistance to physiological effectors of apoptosis that could potentially reduce the efficacy of immune therapies that use these pathways of cell death. We have previously demonstrated high efficacy for a cytokine-based tumor cell vaccine in a murine MPC11 myeloma model. In the present study, the effects of this vaccination were compared in MPC11 cells and their isogenic sublines selected for mdr1/P-glycoprotein (Pgp)-mediated multidrug resistance (MDR). Immunization with MPC11 cells expressing granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin-12 (IL-12) led to long-lasting protection of mice against subcutaneous (sc) challenge with both parental cells or their MDR variants. Similarly, immunization with GM-CSF/IL-12-transfected MDR sublines caused rejection of transplantation of both parental cells and the MDR sublines. Whereas MPC11 cells and their MDR variants were resistant to APO-1/CD95/Fas ligand, the immunization generated potent granzyme B/perforin-secreting cytotoxic T lymphocytes (CTLs) that were similarly effective against both parental and isogenic MDR cells. We conclude that MDR mediated by mdr1/Pgp did not interfere with lysis by pore-forming CTLs. Immunotherapy based on pore-forming CTLs may be an attractive approach to the treatment of drug-resistant myeloma.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1831-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Cytokine-based tumor cell vaccine is equally effective against parental and isogenic multidrug-resistant myeloma cells: the role of cytotoxic T lymphocytes.
pubmed:affiliation
Clinical Investigations Program and Immunology Program, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't