Molecular characteristics of non-small cell lung cancer
First Claim
1. A method of associating a lung cancer with squamous cell carcinoma comprising:
- determining an amount of a gene product of a gene in a lung cancer sample, said gene selected from the group consisting of;
aldoketoreductase family 1, member B 10 (NM—
020299), peroxiredoxin 1 (PRDX1;
NM—
002574), and TNF receptor superfamily member 18 (TNFRSF18;
NM004195);
comparing the amount of the gene product to the amount determined in a lung tissue sample which is non-pathological, wherein an increased amount of the gene product in the lung cancer sample relative to the lung tissue sample which is non-pathological associates the lung cancer with a squamous cell carcinoma.
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Abstract
We used hierarchical clustering to examine gene expression profiles generated by serial analysis of gene expression (SAGE) in a total of nine normal lung epithelial cells and non-small cell lung cancers (NSCLC). Separation of normal and tumor samples, as well as histopathological subtypes, was evident using the 3,921 most abundant transcript tags. This distinction remained when just 115 highly differentially expressed transcript tags were used. Furthermore, these 115 transcript tags clustered into groups that were suggestive of the unique biological and pathological features of the different tissues examined. Adenocarcinomas were characterized by high-level expression of small airway-associated or immunologically related proteins, while squamous cell carcinomas overexpressed genes involved in cellular detoxification or antioxidation. The messages of two p53-regulated genes, p21WAF1/CIP1 and 14-3-3σ, were consistently under-expressed in the adenocarcinomas, suggesting that the p53 pathway itself might be compromised in this cancer type. Gene expression observed by SAGE were consistent with the results obtained by quantitative real-time PCR or cDNA array analyses using 43 additional lung tumor and normal samples. Thus, although derived from only a few tissue libraries, molecular signatures of non-small cell lung cancer derived from SAGE most likely represent an unbiased yet distinctive molecular signature for human lung cancer.
72 Citations
23 Claims
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1. A method of associating a lung cancer with squamous cell carcinoma comprising:
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determining an amount of a gene product of a gene in a lung cancer sample, said gene selected from the group consisting of;
aldoketoreductase family 1, member B 10 (NM—
020299), peroxiredoxin 1 (PRDX1;
NM—
002574), and TNF receptor superfamily member 18 (TNFRSF18;
NM004195);comparing the amount of the gene product to the amount determined in a lung tissue sample which is non-pathological, wherein an increased amount of the gene product in the lung cancer sample relative to the lung tissue sample which is non-pathological associates the lung cancer with a squamous cell carcinoma. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of associating a lung cancer with adenocarcinoma, comprising:
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determining an amount of a gene product of a small proline-rich protein 3 (SPRR3;
NM13 005416) gene in a lung cancer sample;comparing the amount of the gene product to the amount determined in a lung tissue sample which is non-pathological. wherein a decreased amount of the gene product in the lung cancer sample relative to the lung tissue sample which is non-pathological associates the lung cancer with adenocarcinoma. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification