Institut Pasteur

Other

Institut National De La Sante Et De La Recherche Medicale

Anne Dejean

Pierre Tiollais

Agnes Marchio

Hugues Blaudin De The

Pierre H Chambon

Martin Petkovich

Nigel Brand

Andree Krust

Hughes Blaudin De The

Hisaki Nagai

Pascal Pineau

Marie Annick Buendia

Marie-Annick Buendia

Hughes B De The

A method for identifying a synthetic ligand for retinoic acid receptor &#x3b2; comprises providing a sample, including a synthetic compound, exposing the sample to cultured cells, wherein the cultured cells comprise RAR&#x3b2;, determining if transcriptional expression of a gene encoding RAR&#x3b2; is upregulated compared to transcriptional expression of a control gene, and choosing a sample that upregulates the expression of RAR&#x3b2; as being a synthetic ligand for RAR&#x3b2;.

Identification of a synthetic ligand for retinoic acid receptor beta

A previously isolated hepatitis B virus (HBV) integration in a 147 bp cellular DNA fragment linked to hepatocellular carcinoma (HCC) was used as a probe to clone the corresponding complementary DNA from a human liver cDNA library. Nucleotide sequence analysis revealed that the overall structure of the cellular gene, which has been named hap, is similar to that of the DNA-binding hormone receptors. Six out of seven hepatoma and hepatoma-derived cell-lines express a 2.5 kb hap mRNA species which is undetectable in normal adult and fetal livers, but present in all nonhepactic tissues analyzed. Low stringency hybridization experiments revealed the existence of hap related genes in the human genome. The cloned DNA sequence is useful in the preparation of pure hap protein and as a probe in the detection and isolation of complementary DNA and RNA sequences. The hap protein is a retinoic acid (RA) receptor identified as RAR-&bgr;.

Steroid/thyroid hormone receptor-related gene which is inappropriately expressed in human hepatocellular carcinoma and which is a retinoic acid receptor

The present invention pertains to new polynucleotides or new combinations of polynucleotides useful as diagnostic tools for predicting the occurrence of a human hepatocellular carcinoma disease. The invention is also directed to polynucleotides that consist in candidate tumor suppressor genes the alteration of which is involved in the occurrence of hepatocellular carcinoma in a patient, as well as to polynucleotides derived from such new candidate tumor suppressor genes and to the corresponding expressed polypeptides. The invention also concerns diagnostic methods using said polynucleotides as diagnostic tools.

Diagnostic means useful for predictive assessment of human hepatocellular carcinoma disease (HCC), as well as diagnostic methods using the same

A method for detecting a predisposition to hepatocellular carcinoma (HCC) using a unique panel of primers for identifying genetic alterations that are linked to HCC, as well as kits for carrying out the methods, are disclosed.

A previously isolated hepatitis B virus (HBV) integration in a 147 bp cellular DNA fragment linked to hepatocellular carcinoma (HCC) was used as a probe to clone the corresponding complementary DNA from a human liver cDNA library. Nucleotide sequence analysis revealed that the overall structure of the cellular gene, which has been named hap, is similar to that of the DNA-binding hormone receptors. Six out of seven hepatoma and hepatoma-derived cell-lines express a 2.5 kb hap mRNA species which is undetectable in normal adult and fetal livers, but present in all non-hepatic tissues analyzed. Low stringency hybridization experiments revealed the existence of hap related genes in the human genome. The cloned DNA sequence is useful in the preparation of pure hap protein and as a probe in the detection and isolation of complementary DNA and RNA sequences. The hap protein is a retinoic acid (RA) receptor identified as RAR-.beta.. The RAR-.beta. gene is transcriptionally up-regulated by retinoic acid (RA) and its promoter region may contain a RARE (retinoic acid responsive element).

Steroid/thyroid hormone receptor-related gene, which is inappropriately

A previously isolated hepatitis B virus (HBV) integration in a 147 bp cellular DNA fragment linked to hepatocellular carcinoma (HCC) was used as a probe to clone the corresponding complementary DNA from a human liver cDNA library. Nucleotide sequence analysis revealed that the overall structure of the cellular gene, which has been named hap, is similar to that of the DNA-binding hormone receptors. Six out of seven hepatoma and hepatoma-derived cell-lines express a 2.5 kb hap mRNA species which is undetectable in normal adult and fetal livers, but present in all non-hepatic tissues analyzed. Low stringency hybridization experiments revealed the existence of hap related genes in the human genome. The cloned DNA sequence is useful in the preparation of pure hap protein and as a probe in the detection and isolation of complementary DNA and RNA sequences.

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Paris, France

Anne Dejean