Anne DeJean

Title: Anne DeJean: Innovator in Hepatocellular Carcinoma Research

Introduction

Anne DeJean is a prominent inventor based in Paris, France. She has made significant contributions to the field of molecular biology, particularly in understanding the mechanisms of hepatocellular carcinoma (HCC). Her innovative work has led to the development of a patent that highlights the relationship between hepatitis B virus integration and cellular gene expression.

Latest Patents

Anne DeJean holds a patent for a steroid/thyroid hormone receptor-related gene. This invention involves the cloning of complementary DNA from a human liver cDNA library, utilizing a previously isolated hepatitis B virus (HBV) integration linked to HCC. The nucleotide sequence analysis revealed that the cellular gene, named hap, shares structural similarities with DNA-binding hormone receptors. Notably, a 2.5 kb hap mRNA species is expressed in six out of seven hepatoma and hepatoma-derived cell lines, while it remains undetectable in normal adult and fetal livers. This discovery has implications for understanding gene expression in non-hepatic tissues and the potential for developing therapeutic interventions.

Career Highlights

Throughout her career, Anne DeJean has focused on the intersection of molecular biology and cancer research. Her work has been instrumental in identifying the hap protein as a retinoic acid (RA) receptor, specifically RAR-.beta.. This gene is transcriptionally up-regulated by retinoic acid, indicating its potential role in cancer biology. The cloned DNA sequence from her research is valuable for preparing pure hap protein and serves as a probe for detecting and isolating complementary DNA and RNA sequences.

Collaborations

Anne has collaborated with notable colleagues, including Hughes Blaudin De The and Agnes Marchio. These partnerships have enriched her research and contributed to advancements in the understanding of hepatocellular carcinoma.

Conclusion

Anne DeJean's innovative work in the field of molecular biology has led to significant advancements in understanding hepatocellular carcinoma. Her patent and research contributions continue to influence the scientific community and pave the way for future discoveries.