Target intelligence / Profile preview

17β-Hydroxysteroid Dehydrogenase (HSD17B)

Target
HSD17B
Molecular classification
Enzyme, Oxidoreductase, Short-chain dehydrogenase/reductase (SDR) superfamily, Aldo-keto reductase (AKR) (for type 5)
01

Overview

17β-Hydroxysteroid dehydrogenases (17β-HSDs) are a family of enzymes that catalyze the interconversion between less active and more active forms of estrogens and androgens. They play a crucial role in regulating local and systemic steroid hormone levels, influencing endocrine function and hormone-dependent diseases. Different isozymes exhibit varying substrate specificities and tissue distributions, allowing for fine-tuned control of hormone action. Inhibitors or modulators targeting specific HSD isoforms are under investigation for therapeutic use against hormone-dependent diseases.

Other names
17-ketosteroid reductase17-KSR
02

Mechanism of action

Inhibition or modulation of specific HSD17B isoforms to alter local and systemic steroid hormone levels.

03

Biological functions

Steroid hormone metabolismRegulation of estrogen levelsRegulation of androgen levelsIntracrine regulation of hormone actionSteroidogenesis
04

Disease associations

Hormone-dependent cancers (e.g., breast cancer, prostate cancer)Reproductive disordersEndocrine disorders
05

Safety considerations

Potential disruption of normal hormone balanceOff-target effects due to isoform cross-reactivityDevelopment of resistance to inhibitors
06

Interacting drugs

HSD17B inhibitors

1 more in the full profile.

07

Biomarkers

Expression levels of specific HSD17B isoforms in tissuesEstradiol levelsTestosterone levelsEstrone levelsAndrostenedione levels

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