Related Experiment Video
Updated: Aug 22, 2026

An In Vitro Enzymatic Assay to Measure Transcription Inhibition by Gallium(III) and H3 5,10,15-tris(pentafluorophenyl)corroles
Published on: March 18, 2015
Carotenoids and transcription
Yoav Sharoni1, Michael Danilenko, Noga Dubi
1Department of Clinical Biochemistry, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka Medical Center of Kupat Holim, Beer-Sheva, Israel. yoav@bgumail.bgu.ac.il
Abstract:
The possible involvement of several transcription systems in the anticancer activity of carotenoids is the focus of this review. Carotenoids modulate the basic mechanisms of cell proliferation, growth factor signaling, gap junctional intercellular communication, and produce changes in the expression of many proteins participating in these processes. The changes in the expression of multiple proteins suggest that the initial effect of carotenoids involves modulation of transcription. We and others have found evidence for the role of several transcription systems, such as the retinoid receptors, activator protein-1 (AP-1), peroxisome proliferator-activated receptors (PPAR), xenobiotic receptors and the antioxidant response element (ARE), in the anticancer activity of carotenoids. The observed modulation of a network of transcription systems may provide the molecular basis for the synergistic anticancer effects of the combinations of various carotenoids together with other dietary and pharmacologic compounds.
Insights
Carotenoids, potent antioxidants, exhibit anticancer properties by influencing cell growth and protein expression. This review highlights their role in modulating key transcription systems, offering a molecular basis for their therapeutic potential.
Area of Science:
- Nutritional biochemistry
- Molecular oncology
- Cellular signaling
Background:
- Carotenoids are natural compounds with documented anticancer activities.
- Their mechanisms involve modulating cell proliferation, growth factor signaling, and intercellular communication.
- Changes in protein expression suggest a role in regulating gene transcription.
Purpose of the Study:
- To review the involvement of various transcription systems in the anticancer effects of carotenoids.
- To explore how carotenoids modulate cellular processes through transcription factors.
- To provide a molecular framework for understanding carotenoid-mediated anticancer activity.
Main Methods:
- Literature review of studies investigating carotenoid effects on cellular mechanisms.
- Analysis of evidence for the involvement of specific transcription systems.
- Synthesis of findings on protein expression modulation by carotenoids.
Main Results:
- Carotenoids influence cell proliferation, growth factor signaling, and gap junctional communication.
- Evidence supports the role of retinoid receptors, AP-1, PPAR, xenobiotic receptors, and ARE in carotenoid anticancer activity.
- Carotenoids modulate the expression of multiple proteins involved in these cellular processes.
Conclusions:
- Carotenoids exert anticancer effects by modulating a network of transcription systems.
- This modulation of transcription provides a molecular basis for their biological activity.
- Combinations of carotenoids with other compounds may enhance synergistic anticancer effects.
More Related Videos
Related Concept Videos
Eukaryotic Transcription Activators
The binding domains are capable of recognizing and interacting with regulatory sequences on the DNA. These domains are...
Co-activators and Co-repressors
Co-activators and Co-repressors
RNA Polymerase II Accessory Proteins
RNA Polymerase II Accessory Proteins
Transcription Attenuation in Prokaryotes
There are several different mechanisms used to attenuate transcription. In ribosome mediated...

