Related Experiment Video
Updated: Jun 3, 2026
13:04
In Vivo and Ex Vivo Approaches to Study Ovarian Cancer Metastatic Colonization of Milky Spot Structures in Peritoneal Adipose
Published on: October 14, 2015
[Ovarian carcinogenesis: recent and past hypotheses]
G Chêne1, F Penault-Llorca, I Raoelfils
1Département de chirurgie, centre Jean-Perrin, Clermont-Ferrand, France. chenegautier@yahoo.fr
Gynecologie, Obstetrique & Fertilite
|March 25, 2011
Summary
Understanding ovarian cancer origins is challenging due to the absence of a clear precursor. This review explores various hypotheses, including the ovary, ovarian surface epithelium, and Fallopian tube, alongside molecular pathways.
Area of Science:
- Gynecologic Oncology
- Cellular Biology
- Molecular Genetics
Context:
- Ovarian carcinogenesis remains poorly understood due to the lack of a definitive precursor.
- Historically, the ovary and ovarian surface epithelium were considered primary sites.
- Recent evidence increasingly implicates the Fallopian tube in early malignant transformation.
Purpose:
- To review and synthesize current hypotheses on ovarian carcinogenesis.
- To discuss the proposed origins and early stages of ovarian tumor development.
- To integrate molecular genetic findings into the understanding of tumorogenesis pathways.
Summary:
- This review examines multiple hypotheses regarding the origin of ovarian cancer.
- It contrasts traditional views focusing on the ovary with emerging theories centered on the Fallopian tube.
- The discussion incorporates molecular genetic data that defines distinct tumorogenesis pathways.
Impact:
- Provides a comprehensive overview of ovarian cancer origins.
- Highlights the evolving understanding of precursor sites and molecular mechanisms.
- Facilitates further research into early detection and prevention strategies for ovarian malignancies.
Related Concept Videos
02:07Oogenesis
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
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...
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...
01:33Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:33Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
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...