Deciphering phosphorylation TACtics: Advances in phosphorylation targeting strategies and bifunctional modalities

Area of Science:

• Biochemistry and Molecular Biology
• Pharmacology and Therapeutics
• Cellular Physiology

Background:

• Protein phosphorylation, regulated by kinases and phosphatases, is crucial for cellular function; dysregulation leads to diseases like cancer.
• Small-molecule kinase inhibitors have advanced disease treatment but have limitations.
• Bifunctional modalities represent an emerging, event-driven therapeutic strategy for modulating phosphorylation.

Purpose of the Study:

• To review recent advances in bifunctional modalities for modulating protein phosphorylation.
• To discuss the advantages and limitations of current phosphorylation-targeting therapeutics.
• To explore alternative solutions using bifunctional systems for disease treatment.

Main Methods:

• Overview of kinase and phosphatase functions.
• Description of recent applications of phosphorylation-targeting therapeutics.
• Analysis of bifunctional modalities (e.g., PhosTACs, DEPTACs, PhoRCs, PHICS) and their modes of action.

Main Results:

• Bifunctional modalities offer an event-driven model with distinct advantages for targeting protein phosphorylation.
• These novel approaches highlight the interplay between protein substrates, kinases, and phosphatases.
• Advances in bifunctional systems provide new insights into phosphorylation targeting strategies.

Conclusions:

• Bifunctional modalities are a promising advancement in phosphorylation targeting strategies.
• These approaches offer alternative solutions to current limitations in kinase inhibitor therapies.
• Further development holds potential for novel treatments against human diseases linked to phosphorylation dysregulation.