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A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
Published on: April 1, 2019
Molecular characterization of aromatase
Yanyan Hong1, Hongzhi Li, Yate-Ching Yuan
1Department of Surgical Research, Beckman Research Institute of City of Hope, Duarte, California 91010, USA.
Abstract:
Aromatase is an estrogen synthetase. Estrogens are female sex hormones involved in the development and growth of breast tumors. Elucidation of the structure-function relationship of aromatase has been of significant interest since its inhibitors have shown great promise in fighting breast cancer. Aromatase belongs to the cytochrome P450 family and forms an electron-transfer complex with its partner, NADPH-cytochrome P450 reductase. Because of the membrane-bound character and heme-binding instability, no crystal structure of aromatase has been reported so far. Much remains to be investigated, including the 3-dimensional structure of aromatase, interaction between aromatase and reductase, catalytic mechanism of estrogen synthesis by aromatase, and the binding mechanism of aromatase inhibitors. This review presents current knowledge about structural and functional characteristics of aromatase to address unsolved mysteries about this enzyme.
Insights
Aromatase, an enzyme crucial for estrogen synthesis, plays a role in breast tumor growth. Understanding its structure and function is key to developing effective aromatase inhibitors for cancer therapy.
Area of Science:
- Biochemistry
- Enzymology
- Cancer Biology
Background:
- Aromatase is a key enzyme in estrogen synthesis, a process vital for the development and growth of estrogen-dependent breast tumors.
- Aromatase inhibitors are a promising therapeutic strategy for treating breast cancer.
- Aromatase is a member of the cytochrome P450 family and interacts with NADPH-cytochrome P450 reductase.
Purpose of the Study:
- To review the current knowledge on the structural and functional characteristics of aromatase.
- To address the unsolved questions regarding aromatase's 3D structure, its interaction with reductase, its catalytic mechanism, and inhibitor binding.
Main Methods:
- This is a review article, synthesizing existing research and knowledge.
- Focuses on structural and functional aspects of aromatase.
Main Results:
- No crystal structure of aromatase has been reported due to its membrane-bound nature and heme-binding instability.
- Significant gaps remain in understanding aromatase's 3D structure, enzyme-substrate interactions, catalytic mechanisms, and inhibitor binding.
Conclusions:
- Further research into aromatase's structure-function relationship is essential for advancing breast cancer treatment.
- Addressing the current knowledge gaps will facilitate the design of more potent and specific aromatase inhibitors.
