Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-3-16
pubmed:abstractText
The neurotrophin receptors TrkA (NGF receptor) and TrkC (NT-3 receptor) have been shown to be important in staging disease and predicting progression and drug response for various neoplasias such as neuroblastoma, medulloblastoma and prostate cancer. Less is known about the role of the p75 neurotrophin receptor in cancer, but it influences metastatic potential in glioblastoma. To determine the effect of each neurotrophin receptor or co-receptor expression in tumorigenesis, we examined PC12 pheochromocytomas. PC12 wild type (TrkA(+), p75(++)) were compared to three PC12-derived cell lines expressing varying levels of TrkA or TrkC and/or p75. Growth rates, tumorigenic potential ex vivo and in vivo, and chemotherapeutic drug response profiles differed depending on the neurotrophin receptor phenotype. The ability of neurotrophins to rescue cells from doxorubicin or cisplatin induced cell death also varied depending on phenotype. Thus, unique neurotrophin receptor tumor profiles may determine tumor aggressiveness and chemoresistance. This work may help to develop tailored therapies for specific tumor phenotypes by combining traditional chemotherapy with neurotrophin receptor modulators.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1432-0843
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
65
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1047-56
pubmed:meshHeading
pubmed-meshheading:19701634-Animals, pubmed-meshheading:19701634-Antineoplastic Agents, pubmed-meshheading:19701634-Apoptosis, pubmed-meshheading:19701634-Cell Proliferation, pubmed-meshheading:19701634-Cell Survival, pubmed-meshheading:19701634-Cisplatin, pubmed-meshheading:19701634-Dose-Response Relationship, Drug, pubmed-meshheading:19701634-Doxorubicin, pubmed-meshheading:19701634-Drug Resistance, Neoplasm, pubmed-meshheading:19701634-Female, pubmed-meshheading:19701634-Mice, pubmed-meshheading:19701634-Mice, Nude, pubmed-meshheading:19701634-Mutation, pubmed-meshheading:19701634-Neoplasms, Experimental, pubmed-meshheading:19701634-PC12 Cells, pubmed-meshheading:19701634-Rats, pubmed-meshheading:19701634-Receptor, Nerve Growth Factor, pubmed-meshheading:19701634-Receptor, trkA, pubmed-meshheading:19701634-Time Factors, pubmed-meshheading:19701634-Tumor Burden, pubmed-meshheading:19701634-Xenograft Model Antitumor Assays
pubmed:year
2010
pubmed:articleTitle
Differential roles of Trk and p75 neurotrophin receptors in tumorigenesis and chemoresistance ex vivo and in vivo.
pubmed:affiliation
Lady Davis Research Institute, Jewish General Hospital, McGill University, 3755 Cote Ste-Catherine E-535, Montreal, QC, H3T 1E2, Canada.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural