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Steroid sulfation Current concepts
Trends in Endocrinology and Metabolism: TEM
|March 1, 1993
Summary
Steroid sulfation, regulated by sulfotransferases and sulfatases, controls active steroid hormone levels. This process is crucial for hormone availability in target tissues like the uterus and liver.
Area of Science:
- Biochemistry
- Endocrinology
- Molecular Biology
Background:
- Steroid sulfates are synthesized by sulfotransferase enzymes.
- Steroid sulfates act as precursors to active steroid hormones.
- Sulfatase enzymes cleave sulfate groups to release active steroids.
Purpose of the Study:
- To investigate the role of steroid sulfation and desulfation in regulating active steroid hormone availability.
- To explore the significance of these processes in specific tissue compartments.
Main Methods:
- Enzyme kinetics studies.
- Analysis of steroid sulfotransferase and sulfatase activities.
- Hormone level measurements in target tissues.
Main Results:
- Steroid sulfation and desulfation are key regulatory mechanisms for active steroid hormones.
- Evidence suggests this regulation occurs intracellularly.
- Significant indications of this regulation were found in the uterine compartment, liver, and mammary cancer cells.
Conclusions:
- Intracellular sulfation and desulfation play a critical role in modulating the local availability of active steroid hormones.
- These enzymatic processes are important in reproductive tissues, the liver, and in the context of breast cancer.
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