Related Experiment Video
Updated: Jun 2, 2026
10:35
Generation of Subcutaneous and Intrahepatic Human Hepatocellular Carcinoma Xenografts in Immunodeficient Mice
Published on: September 25, 2013
Genetics of hepatobiliary carcinogenesis
Jean-Charles Nault1, Jessica Zucman-Rossi
1Inserm, U674, Génomique fonctionnelle des tumeurs solides, Paris, France.
Seminars in Liver Disease
|May 4, 2011
Summary
Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC) are deadly liver cancers. Understanding their genetic mutations and heterogeneity is key to developing targeted therapies and improving patient outcomes.
Area of Science:
- Hepatobiliary cancers
- Cancer genomics
- Molecular oncology
Background:
- Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC) are major global causes of cancer mortality.
- Liver carcinogenesis results from genetic alterations, viral infections, and environmental exposures.
- Key genetic alterations include β-catenin and P53 mutations in HCC, and P53 and KRAS mutations in CC.
Purpose of the Study:
- To explore the genetic landscape of liver cancers.
- To identify rare genetic alterations that may serve as drug targets.
- To understand the role of genetic heterogeneity in diagnosis and prognosis.
Main Methods:
- Global genomic analysis to identify genetic alterations.
- Review of existing literature on genetic mutations in HCC and CC.
- Assessment of the impact of genetic profiling on diagnosis and prognosis.
Main Results:
- Global genomic analysis reveals significant genetic heterogeneity in liver cancers.
- Specific mutations like PIK3CA and EGFR represent potential drug targets.
- Sorafenib is the first validated targeted therapy for HCC, indicating therapeutic potential.
Conclusions:
- Mapping genetic alterations is crucial for personalized treatment strategies in HCC and CC.
- Targeted therapies offer new prospects for managing these liver cancers.
- Further research into genetic heterogeneity will refine diagnosis and improve patient prognosis.
Related Concept Videos
01:24Cirrhosis II: Pathophysiology
Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
02:59Cancer Prevention
Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Some...
01:25Mutagenicity and Carcinogenicity
Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
01:25Hepatitis
Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
01:23Cirrhosis I: Introduction
Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
01:51Mechanisms of Retrovirus-induced Cancers
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...