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Published on: March 20, 2018
Genetics, structure, function, mode of actions and role in cancer development of CYP17
Tatyana A Sushko, Andrei A Gilep, Sergey A Usanov1
1Institute of Bioorganic Chemistry NASB Belarus, 220141 Minsk, Kuprevicha str. 5/2, Belarus. agilep@iboch.bas-net.by.
Abstract:
Most prostate and breast cancers are hormone dependent. The inhibition of steroid 17α-hydroxylase/17,20- lyase (CYP17), which is a crucial enzyme for steroid hormone biosynthesis, is widely used to treat androgen-dependent prostate cancer (PC). CYP17 has dual enzymatic activity: 17alpha-hydroxylase activity (utilizing delta4- C21 steroids as substrates) and the 17,20-lyase activity (using delta5- C21 steroids as substrates). The steroid biosynthetic pathway is directed to either the production of corticosteroids or sex hormones depending on the activity of CYP17. In this review, the current information on the genetics, molecular structure, substrate specificity and inhibitors of CYP17 is analyzed and discussed.
Insights
Steroid 17α-hydroxylase/17,20-lyase (CYP17) inhibition treats hormone-dependent cancers. This review analyzes CYP17 genetics, structure, specificity, and inhibitors for cancer therapy.
Area of Science:
- Biochemistry
- Endocrinology
- Oncology
Background:
- Prostate and breast cancers are often hormone-dependent.
- Inhibiting steroid 17α-hydroxylase/17,20-lyase (CYP17) is a key treatment for androgen-dependent prostate cancer.
- CYP17 is essential for steroid hormone biosynthesis, directing pathways towards corticosteroids or sex hormones.
Purpose of the Study:
- To review current knowledge on CYP17.
- To analyze the genetics, molecular structure, substrate specificity, and inhibitors of CYP17.
Main Methods:
- Literature review of scientific articles on CYP17.
- Analysis of existing data on CYP17 genetics and structure.
- Discussion of substrate specificity and known inhibitors.
Main Results:
- CYP17 possesses dual enzymatic activities: 17alpha-hydroxylase and 17,20-lyase.
- The enzyme's activity dictates the production of either corticosteroids or sex hormones.
- Information on CYP17 genetics, structure, substrate interactions, and inhibition is synthesized.
Conclusions:
- Understanding CYP17's role and characteristics is vital for developing targeted cancer therapies.
- Further research into CYP17 inhibitors could lead to improved treatments for hormone-dependent cancers.
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