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Reverse Yeast Two-hybrid System to Identify Mammalian Nuclear Receptor Residues that Interact with Ligands and/or Antagonists
Published on: November 15, 2013
Pharmacogenetics of the nuclear hormone receptors: the missing link between environment and drug effects?
Elena De Mattia1, Eva Dreussi, Erika Cecchin
1Experimental & Clinical Pharmacology Unit, Centro di Riferimento Oncologico-National Cancer Institute, Via Franco Gallini, 2, 33081, Aviano, Italy.
Abstract:
In the last decade, genetic variations in ABC/SLC transporters and phase I/II enzymes have raised pharmacogenetic markers as being predictive to the attention of researchers in the field of personalized medicine in oncology. However, it is becoming evident that the sequence variations in these genes cannot address by themselves the sharp interindividual variability in drug effects. Recently, nuclear receptors (NRs), including pregnane X receptor, constitutive androstane receptor, retinoid X receptor, farnesoid X receptor, liver X receptor, vitamin D receptor, peroxisome proliferator-activated receptors and HNF4A, have demonstrated key roles in regulating transporter and metabolic gene expression in response to xeno/endobiotics, as well as antineoplastic drugs. These findings attracted interest to the genetics of the NRs for their possible role in influencing the metabolism and pharmacological profiles of chemotherapeutics. In this review, we aim to summarize the most recent findings in the innovative field of NR pharmacogenetics and findings in how they could integrate with more traditional markers in order to improve drug treatment personalization.
Insights
Genetic variations in nuclear receptors (NRs) influence how cancer drugs work. Understanding NR genetics can improve personalized cancer medicine by integrating these markers with traditional ones.
Area of Science:
- Pharmacogenetics
- Oncology
- Molecular Biology
Background:
- Genetic variations in drug transporters and metabolic enzymes are key pharmacogenetic markers in personalized oncology.
- These variations alone do not fully explain interindividual differences in drug response.
- Nuclear receptors (NRs) regulate genes involved in drug metabolism and transport.
Purpose of the Study:
- To review recent findings on nuclear receptor pharmacogenetics.
- To explore how NR genetics can be integrated with traditional markers for personalized cancer therapy.
Main Methods:
- Literature review of recent studies on nuclear receptor genetics and pharmacogenomics.
- Analysis of the role of NRs in regulating genes affected by xenobiotics and chemotherapy.
Main Results:
- Nuclear receptors (e.g., PXR, CAR, RXR, FXR, LXR, VDR, PPARs, HNF4A) play crucial roles in drug metabolism and transport.
- Genetic variations in NRs can significantly impact the efficacy and toxicity of chemotherapeutics.
- NR pharmacogenetics offers a novel layer of understanding for drug response variability.
Conclusions:
- NR pharmacogenetics is a rapidly advancing field with significant potential in oncology.
- Integrating NR genetic markers with established pharmacogenetic markers can enhance personalized cancer treatment strategies.
- Further research into NR genetics is essential for optimizing chemotherapy regimens.
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