Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022

Targeted protein degradation (TPD) is a promising therapeutic modality that has garnered attention in academic, industrial, and pharmaceutical research for treating diseases such as cancer, neurodegenerative disorders, inflammation, and viral infections. In this context, proteolysis-targeting chimer...

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Main Authors: Rekha Tamatam, Dongyun Shin
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/6/5190
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author Rekha Tamatam
Dongyun Shin
author_facet Rekha Tamatam
Dongyun Shin
author_sort Rekha Tamatam
collection DOAJ
description Targeted protein degradation (TPD) is a promising therapeutic modality that has garnered attention in academic, industrial, and pharmaceutical research for treating diseases such as cancer, neurodegenerative disorders, inflammation, and viral infections. In this context, proteolysis-targeting chimeras (PROTACs) present a reliable technology for degrading disease-causing proteins. PROTACs complement small-molecule inhibitors, which primarily rely on direct protein regulation. From concept-to-clinic, PROTACs have evolved from cell impermeable peptide molecules to orally bioavailable drugs. Despite their potential in medicinal chemistry, certain aspects regarding PROTACs remain unclear. The clinical significance of PROTACs is primarily limited owing to their lack of selectivity and drug-like properties. This review focused on recently reported PROTAC strategies, particularly in 2022. It aimed to address and overcome the challenges posed by classical PROTACs by correlating them with emerging approaches with improved selectivity and controllability, cell permeability, linker flexibility, druggability, and PROTAC-based approaches, developed in 2022. Furthermore, recently reported PROTAC-based approaches are discussed, highlighting each of their advantages and limitations. We predict that several improved PROTAC molecules will be accessible for treating patients exhibiting various conditions, including cancer, neurodegenerative disorders, inflammation, and viral infections.
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spelling doaj.art-ae90745684f54dfab8a33aa24163f3592023-11-17T11:30:21ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-03-01246519010.3390/ijms24065190Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022Rekha Tamatam0Dongyun Shin1College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Republic of KoreaCollege of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Republic of KoreaTargeted protein degradation (TPD) is a promising therapeutic modality that has garnered attention in academic, industrial, and pharmaceutical research for treating diseases such as cancer, neurodegenerative disorders, inflammation, and viral infections. In this context, proteolysis-targeting chimeras (PROTACs) present a reliable technology for degrading disease-causing proteins. PROTACs complement small-molecule inhibitors, which primarily rely on direct protein regulation. From concept-to-clinic, PROTACs have evolved from cell impermeable peptide molecules to orally bioavailable drugs. Despite their potential in medicinal chemistry, certain aspects regarding PROTACs remain unclear. The clinical significance of PROTACs is primarily limited owing to their lack of selectivity and drug-like properties. This review focused on recently reported PROTAC strategies, particularly in 2022. It aimed to address and overcome the challenges posed by classical PROTACs by correlating them with emerging approaches with improved selectivity and controllability, cell permeability, linker flexibility, druggability, and PROTAC-based approaches, developed in 2022. Furthermore, recently reported PROTAC-based approaches are discussed, highlighting each of their advantages and limitations. We predict that several improved PROTAC molecules will be accessible for treating patients exhibiting various conditions, including cancer, neurodegenerative disorders, inflammation, and viral infections.https://www.mdpi.com/1422-0067/24/6/5190targeted protein degradationproteolysis-targeting chimerasselectivitypermeabilitylinker flexibility
spellingShingle Rekha Tamatam
Dongyun Shin
Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022
International Journal of Molecular Sciences
targeted protein degradation
proteolysis-targeting chimeras
selectivity
permeability
linker flexibility
title Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022
title_full Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022
title_fullStr Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022
title_full_unstemmed Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022
title_short Emerging Strategies in Proteolysis-Targeting Chimeras (PROTACs): Highlights from 2022
title_sort emerging strategies in proteolysis targeting chimeras protacs highlights from 2022
topic targeted protein degradation
proteolysis-targeting chimeras
selectivity
permeability
linker flexibility
url https://www.mdpi.com/1422-0067/24/6/5190
work_keys_str_mv AT rekhatamatam emergingstrategiesinproteolysistargetingchimerasprotacshighlightsfrom2022
AT dongyunshin emergingstrategiesinproteolysistargetingchimerasprotacshighlightsfrom2022