Molecular signature of liver tumor grade and use to evaluate prognosis and therapeutic regimen

摘要

The present invention concerns a method to determine the gene expression profile on a sample previously obtained from a patient diagnosed for a liver tumor, comprising assaying the expression of a set of genes in this sample and determining the gene expression profile (signature). In a particular embodiment, said method enables to determine the grade of the liver tumor, such as hepatoblastoma (HB) or a hepatocellular carcinoma (HCC). The invention is also directed to kits comprising a plurality of pairs of primers or a plurality of probes specific for a set of genes, as well as to solid support or composition comprising a set of probes specific for a set of genes. These methods are useful to determine the grade of a liver tumor in a sample obtained from a patient, to determine the risk of developing metastasis and/or to define the therapeutic regimen to apply to a patient.

主权项

1. A method, comprising:
assaying by real-time RT-PCR the expression of each gene in a set of genes in a biological sample wherein said set of genes comprises from 10 to 16 genes or consists of 10 to 16 genes, said 10 to 16 genes being selected from the group consisting of the alpha-fetoprotein (AFP), aldehyde dehydrogenase 2 (ALDH2), amyloid P component serum (APCS), apolipoprotein C-IV (APOC4), aquaporin 9 (AQP9), budding uninhibited by benzimidazoles 1 (BUB1), complement component 1 (CIS), cytochrome p450 2E1 (CYP2E1), discs large homolog 7 (DLG7), dual specificity phosphatase 9 (DUSP9), E2F5 transcription factor (E2F5), growth hormone receptor (GHR), 4-hydroxyphenylpyruvase dioxygenase (DHP), immunoglobulin superfamily member 1 (IGSF1), Notchless homolog 1 (NLE1) and the ribosomal protein L10a (RPL10A) genes, wherein the biological sample is a hepatoblastoma (HB) or a hepatocellular carcinoma (HCC) obtained from a patient after surgical resection or orthotopic liver transplantation (OLT).