Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2005-3-1
pubmed:abstractText
Detection of micrometastases in the regional tumor-draining lymph nodes is critical for staging and prognosis in melanoma patients. We applied a quantitative multiple-marker RT-PCR assay to improve the detection of occult melanoma cells in the sentinel lymph node (SLN). From 139 patients with primary cutaneous melanoma who underwent sentinel lymphadenectomy, a total of 235 SLN were assessed for Melan-A and tyrosinase expression by real-time quantitative RT-PCR. Twenty-three patients (17%) were positive by histopathology and expressed messenger RNA of one or two markers. Of the patients with histopathologically negative SLN 39 (28%) were reclassified by positive RT-PCR. Patients were examined for tumor recurrences during a median follow-up period of 29 mo. Tumor recurrences were demonstrated in eight patients (35%) with histopathologically positive SLN, in four patients (10%) with submicroscopic tumor cells detected exclusively by real-time RT-PCR, and in none of the patients negative by both methods. The differences in recurrence rates were statistically significant (p=0.01). These data indicate that real-time quantitative RT-PCR for the detection of minimal residual melanoma in SLN improves the prediction of disease-free survival.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-202X
pubmed:author
pubmed:issnType
Print
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
633-7
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:15737205-Antigens, Neoplasm, pubmed-meshheading:15737205-Disease-Free Survival, pubmed-meshheading:15737205-Follow-Up Studies, pubmed-meshheading:15737205-Genetic Testing, pubmed-meshheading:15737205-Humans, pubmed-meshheading:15737205-Lymph Node Excision, pubmed-meshheading:15737205-Lymphatic Metastasis, pubmed-meshheading:15737205-MART-1 Antigen, pubmed-meshheading:15737205-Melanoma, pubmed-meshheading:15737205-Monophenol Monooxygenase, pubmed-meshheading:15737205-Neoplasm, Residual, pubmed-meshheading:15737205-Neoplasm Proteins, pubmed-meshheading:15737205-Neoplasm Recurrence, Local, pubmed-meshheading:15737205-Predictive Value of Tests, pubmed-meshheading:15737205-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:15737205-Risk Factors, pubmed-meshheading:15737205-Sentinel Lymph Node Biopsy, pubmed-meshheading:15737205-Skin Neoplasms
pubmed:year
2005
pubmed:articleTitle
Quantification of melanoma micrometastases in sentinel lymph nodes using real-time RT-PCR.
pubmed:affiliation
Institute of Immunology, University of Heidelberg, Heidelberg, Germany. Thomas.Geise@urz.uni-heidelberg.de
pubmed:publicationType
Journal Article, Clinical Trial