11β-hydroxysteroid dehydrogenases: A growing multi-tasking family

Area of Science:

• Biochemistry
• Endocrinology
• Molecular Biology

Background:

• The 11β-hydroxysteroid dehydrogenase (11βHSD) enzyme family plays a crucial role in regulating steroid hormone activity.
• Three human 11βHSD enzymes (11βHSD1, 11βHSD2, 11βHSD3) and related dehydrogenases have been identified.

Purpose of the Study:

• To review the history, discovery, and diverse functions of the 11βHSD enzyme family.
• To discuss substrates beyond glucocorticoids and their pathological implications.
• To explore the role of 11βHSD1 in metabolic syndrome and therapeutic strategies.

Main Methods:

• Literature review of the discovery and functional characterization of 11βHSD enzymes.
• Analysis of the role of 11βHSDs in regulating intracellular steroid concentrations.
• Discussion of clinical trial outcomes and therapeutic potential of 11βHSD inhibitors.

Main Results:

• 11βHSD enzymes modulate intracellular concentrations of glucocorticoids, bile acids, neurosteroids, and other sterols.
• Dysregulation of 11βHSD function is linked to pathologies including metabolic syndrome.
• 11βHSD1 activity is elevated in aging, obesity, and metabolic syndrome.

Conclusions:

• 11βHSD enzymes are critical regulators of steroid hormone signaling and cellular functions.
• Targeting 11βHSD1 and 11βHSD2 offers potential therapeutic avenues for metabolic disorders.
• Further research into the diverse roles and inhibition of 11βHSDs is warranted.