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Uridine diphosphoglucuronosyltransferase pharmacogenetics and cancer
1Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, PA 19140, USA. swati.nagar@temple.edu
Abstract:
The uridine diphosphoglucuronosyltransferases (UGTs) belong to a superfamily of enzymes that catalyse the glucuronidation of numerous endobiotics and xenobiotics. Several human hepatic and extrahepatic UGT isozymes have been characterized with respect to their substrate specificity, tissue expression and gene structure. Genetic polymorphisms have been identified for almost all the UGT family members. A wide variety of anticancer drugs, dietary chemopreventives and carcinogens are known to be conjugated by members of both UGT1A and UGT2B subfamilies. This review examines in detail each UGT isozyme known to be associated with cancer and carcinogenesis. The cancer-related substrates for several UGTs are summarized, and the functionally relevant genetic polymorphisms of UGTs are reviewed. A number of genotype-phenotype association studies have been carried out to characterize the role of UGT pharmacogenetics in several types of cancer, and these examples are discussed here. In summary, this review focuses on the role of the human UGT genetic polymorphisms in carcinogenesis, chemoprevention and cancer risk.
Insights
Genetic variations in uridine diphosphoglucuronosyltransferases (UGTs) impact how the body processes anticancer drugs and carcinogens. Understanding these UGT polymorphisms is key to cancer prevention and treatment strategies.
Area of Science:
- Pharmacogenetics
- Enzymology
- Cancer Biology
Background:
- Uridine diphosphoglucuronosyltransferases (UGTs) are crucial enzymes for metabolizing endogenous and exogenous compounds.
- Genetic polymorphisms in UGTs are common and affect enzyme activity.
- UGTs play a role in the metabolism of anticancer drugs, dietary compounds, and carcinogens.
Purpose of the Study:
- To review UGT isozymes involved in cancer and carcinogenesis.
- To summarize cancer-related substrates metabolized by UGTs.
- To discuss the role of UGT genetic polymorphisms in cancer risk, chemoprevention, and treatment.
Main Methods:
- Literature review of UGT isozymes associated with cancer.
- Summary of UGT substrates relevant to cancer.
- Review of functionally significant UGT genetic polymorphisms.
- Discussion of genotype-phenotype association studies in cancer.
Main Results:
- Identified UGT isozymes involved in cancer and carcinogenesis.
- Detailed the cancer-related substrates conjugated by UGTs.
- Reviewed functionally relevant genetic polymorphisms in UGTs.
- Presented examples of UGT pharmacogenetics in various cancer types.
Conclusions:
- Human UGT genetic polymorphisms significantly influence cancer risk.
- UGT pharmacogenetics are critical for understanding cancer chemoprevention efficacy.
- UGT variations impact the effectiveness and toxicity of cancer therapies.
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