GSK-3β Allosteric Inhibition : A Dead End or a New Pharmacological Frontier?

Most kinase inhibitors are designed to bind to highly homologous ATP-binding sites, which leads to promiscuity and possible off-target effects. Allostery is an alternative approach to pursuing selectivity. However, allostery is difficult to exploit due to the wide variety of underlying mechanisms and the potential involvement of long-range conformational effects that are difficult to pinpoint. GSK-3β is involved in several pathologies. This critical target has an ATP-binding site that is highly homologous with the orthosteric sites of other kinases. Unsurprisingly, there is also great similarity between the ATP-binding sites of GSK-3β and its isomer, which is not redundant and thus would benefit from selective inhibition. Allostery would also allow for a moderate and tunable inhibition, which is ideal for GSK-3β, because this target is involved in multiple pathways, some of which must be preserved. However, despite considerable research efforts, only one allosteric GSK-3β inhibitor has reached the clinic. Moreover, unlike other kinases, there are no X-ray structures of GSK-3β in complex with allosteric inhibitors in the PDB data bank. This review aims to summarize the state of the art in allosteric GSK-3β inhibitor investigations, highlighting the aspects that make this target challenging for an allosteric approach.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:24

Enthalten in:

International journal of molecular sciences - 24(2023), 8 vom: 19. Apr.

Sprache:

Englisch

Beteiligte Personen:

Balboni, Beatrice [VerfasserIn]
Masi, Mirco [VerfasserIn]
Rocchia, Walter [VerfasserIn]
Girotto, Stefania [VerfasserIn]
Cavalli, Andrea [VerfasserIn]

Links:

Volltext

Themen:

8L70Q75FXE
Adenosine Triphosphate
Alzheimer’s disease
Cancer
Drug discovery
EC 2.7.11.1
Glycogen Synthase Kinase 3 beta
Inhibitors
Journal Article
Pocketron
Protein Kinase Inhibitors
Review

Anmerkungen:

Date Completed 01.05.2023

Date Revised 01.05.2023

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijms24087541

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM356122808