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Updated: Jun 6, 2026

Quantitative Analysis of Dietary Vitamin A Metabolites in Murine Ocular and Non-Ocular Tissues Using High-Performance Liquid Chromatography
Published on: December 27, 2024
Retinoids, retinoic acid receptors, and cancer
Xiao-Han Tang1, Lorraine J Gudas
1Department of Pharmacology, Weill Cornell Medical College, New York, New York 10065, USA.
Abstract:
Retinoids (i.e., vitamin A, all-trans retinoic acid, and related signaling molecules) induce the differentiation of various types of stem cells. Nuclear retinoic acid receptors mediate most but not all of the effects of retinoids. Retinoid signaling is often compromised early in carcinogenesis, which suggests that a reduction in retinoid signaling may be required for tumor development. Retinoids interact with other signaling pathways, including estrogen signaling in breast cancer. Retinoids are used to treat cancer, in part because of their ability to induce differentiation and arrest proliferation. Delivery of retinoids to patients is challenging because of the rapid metabolism of some retinoids and because epigenetic changes can render cells retinoid resistant. Successful cancer therapy with retinoids is likely to require combination therapy with drugs that regulate the epigenome, such as DNA methyltransferase and histone deacetylase inhibitors, as well as classical chemotherapeutic agents. Thus, retinoid research benefits both cancer prevention and cancer treatment.
Insights
Retinoids, vitamin A derivatives, promote stem cell differentiation and are crucial in cancer prevention and treatment. Overcoming delivery challenges and resistance with epigenetic drugs enhances retinoid cancer therapy.
Area of Science:
- Oncology
- Cell Biology
- Molecular Biology
Background:
- Retinoids, including vitamin A and all-trans retinoic acid, are signaling molecules that induce stem cell differentiation.
- Nuclear retinoic acid receptors mediate many, but not all, retinoid effects.
- Compromised retinoid signaling is observed early in carcinogenesis, suggesting its role in tumor development.
Purpose of the Study:
- To explore the role of retinoids in stem cell differentiation and cancer.
- To investigate the interaction of retinoids with other signaling pathways, such as estrogen signaling in breast cancer.
- To address challenges in retinoid delivery and resistance for effective cancer therapy.
Main Methods:
- Review of existing literature on retinoid signaling pathways.
- Analysis of retinoid interactions with cancer cell signaling.
- Discussion of therapeutic strategies involving retinoids and epigenetic modulators.
Main Results:
- Retinoids induce differentiation and inhibit proliferation, supporting their use in cancer treatment.
- Retinoid signaling is frequently impaired during early stages of cancer development.
- Drug delivery and acquired retinoid resistance are significant obstacles in retinoid-based cancer therapy.
Conclusions:
- Retinoids are vital for stem cell differentiation and hold promise for cancer prevention and treatment.
- Combination therapies involving retinoids, epigenetic drugs (DNMT and HDAC inhibitors), and chemotherapy are essential for successful cancer treatment.
- Further research into retinoid delivery and overcoming resistance is critical for maximizing therapeutic benefits.
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