Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2011-1-11
pubmed:databankReference
pubmed:abstractText
Metastasis and drug resistance are the major causes of mortality in patients with pancreatic cancer. Once developed, the progression of pancreatic cancer metastasis is virtually unstoppable with current therapies. Here, we report the remarkable clinical outcome of a patient with advanced, gemcitabine-resistant, pancreatic cancer who was later treated with DNA damaging agents, on the basis of the observation of significant activity of this class of drugs against a personalized xenograft generated from the patient's surgically resected tumor. Mitomycin C treatment, selected on the basis of its robust preclinical activity in a personalized xenograft generated from the patient's tumor, resulted in long-lasting (36+ months) tumor response. Global genomic sequencing revealed biallelic inactivation of the gene encoding PalB2 protein in this patient's cancer; the mutation is predicted to disrupt BRCA1 and BRCA2 interactions critical to DNA double-strand break repair. This work suggests that inactivation of the PALB2 gene is a determinant of response to DNA damage in pancreatic cancer and a new target for personalizing cancer treatment. Integrating personalized xenografts with unbiased exomic sequencing led to customized therapy, tailored to the genetic environment of the patient's tumor, and identification of a new biomarker of drug response in a lethal cancer.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1538-8514
pubmed:author
pubmed:copyrightInfo
©2010 AACR.
pubmed:issnType
Electronic
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3-8
pubmed:meshHeading
pubmed-meshheading:21135251-Animals, pubmed-meshheading:21135251-DNA Breaks, Double-Stranded, pubmed-meshheading:21135251-Deoxycytidine, pubmed-meshheading:21135251-Disease Progression, pubmed-meshheading:21135251-Drug Resistance, Neoplasm, pubmed-meshheading:21135251-Female, pubmed-meshheading:21135251-Humans, pubmed-meshheading:21135251-Individualized Medicine, pubmed-meshheading:21135251-Male, pubmed-meshheading:21135251-Mice, pubmed-meshheading:21135251-Mice, Nude, pubmed-meshheading:21135251-Middle Aged, pubmed-meshheading:21135251-Mitomycin, pubmed-meshheading:21135251-Mutation, pubmed-meshheading:21135251-Nuclear Proteins, pubmed-meshheading:21135251-Pancreatic Neoplasms, pubmed-meshheading:21135251-Tumor Suppressor Proteins, pubmed-meshheading:21135251-Xenograft Model Antitumor Assays
pubmed:year
2011
pubmed:articleTitle
Personalizing cancer treatment in the age of global genomic analyses: PALB2 gene mutations and the response to DNA damaging agents in pancreatic cancer.
pubmed:affiliation
Corresponding Author: Manuel Hidalgo, Clinical Research Program, Spanish National Cancer Research Center (CNIO), Melchor Fernandez Almagro, 3, 28029, Madrid, Spain.
pubmed:publicationType
Journal Article, Clinical Trial, Case Reports, Research Support, N.I.H., Extramural