Source:http://linkedlifedata.com/resource/pubmed/id/19234440
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2009-4-1
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pubmed:abstractText |
A subset of lung cancers harbors a small inversion within chromosome 2p, giving rise to a transforming fusion gene, EML4-ALK (echinoderm microtubule-associated protein-like 4 gene and the anaplastic lymphoma kinase gene), which encodes an activated tyrosine kinase. We have earlier examined the presence of EML4-ALK by multiplex reverse transcription-polymerase chain reaction in 363 specimens of lung cancer, identifying 11 adenocarcinoma cases featuring the fusion gene. In this study, we clinicopathologically examined the characteristics of the EML4-ALK-positive cases, including the mutation status of EGFR, KRAS, and TP53, and whether they were of thyroid transcription factor-1 (TTF-1) cell lineage or not. Of 11 patients, 4 (36%) with EML4-ALK-positive lung adenocarcinomas who were below 50 years of age were affected by these diseases, as compared with 12 of 242 patients (5.0%) with EML4-ALK-negative lung adenocarcinomas (P=0.00038). EML4-ALK-positive lung adenocarcinomas were characterized by less-differentiated grade (P=0.0082) and acinar-predominant structure (P<0.0001) in histology. Furthermore, the presence of EML4-ALK appears to be mutually exclusive for EGFR and KRAS mutations (P=0.00018), whereas coexisting with TP53 mutations at a low frequency (1/11=9.1%), and correlating with non- or light smoking (P=0.040), in line with the TTF-1 immunoreactivity. Thus, EML4-ALK-positive tumors may form a distinct entity among lung adenocarcinomas, characterized by young onset, acinar histology, no or rare mutations in EGFR, KRAS, and TP53, and a TTF-1 cell lineage, all in agreement with the prevalence in non- or light smokers.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/EML4-ALK fusion protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/KRAS protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Oncogene Proteins, Fusion,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/TTF1 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Suppressor Protein p53,
http://linkedlifedata.com/resource/pubmed/chemical/ras Proteins
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
1530-0285
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pubmed:author |
pubmed-author:ChoiYoung LimYL,
pubmed-author:HatanoSatokoS,
pubmed-author:InamuraKentaroK,
pubmed-author:IshikawaYuichiY,
pubmed-author:ManoHiroyukiH,
pubmed-author:MotoiNorikoN,
pubmed-author:MunMing-yonMY,
pubmed-author:NakagawaKenK,
pubmed-author:NinomiyaHironoriH,
pubmed-author:OkumuraSakaeS,
pubmed-author:SakaoYukinoriY,
pubmed-author:SodaManabuM,
pubmed-author:TakeuchiKengoK,
pubmed-author:TogashiYukiY
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pubmed:issnType |
Electronic
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pubmed:volume |
22
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
508-15
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pubmed:meshHeading |
pubmed-meshheading:19234440-Adenocarcinoma,
pubmed-meshheading:19234440-Age of Onset,
pubmed-meshheading:19234440-Cell Lineage,
pubmed-meshheading:19234440-DNA-Binding Proteins,
pubmed-meshheading:19234440-Genes, erbB-1,
pubmed-meshheading:19234440-Humans,
pubmed-meshheading:19234440-Immunohistochemistry,
pubmed-meshheading:19234440-Lung Neoplasms,
pubmed-meshheading:19234440-Middle Aged,
pubmed-meshheading:19234440-Mutation,
pubmed-meshheading:19234440-Oncogene Proteins, Fusion,
pubmed-meshheading:19234440-Polymerase Chain Reaction,
pubmed-meshheading:19234440-Polymorphism, Single-Stranded Conformational,
pubmed-meshheading:19234440-Proto-Oncogene Proteins,
pubmed-meshheading:19234440-Tumor Suppressor Protein p53,
pubmed-meshheading:19234440-ras Proteins
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pubmed:year |
2009
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pubmed:articleTitle |
EML4-ALK lung cancers are characterized by rare other mutations, a TTF-1 cell lineage, an acinar histology, and young onset.
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pubmed:affiliation |
Division of Pathology, The Cancer Institute, Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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