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Related Concept Videos

Regulated Protein Degradation02:58

Regulated Protein Degradation

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It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
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The Proteasome02:18

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Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
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The Proteasome01:13

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Proteins: From Genes to Degradation02:11

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Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick.  Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation.
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Programmable PROTAC delivery for precise and spatiotemporal protein degradation.

Jinhan Sheng1,2, Tianyu Ma1,2, Yu Wu3

  • 1Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. mingwang@iccas.ac.cn.

Chemical Communications (Cambridge, England)
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Nanoparticles enhance targeted protein degradation (TPD) by improving proteolysis-targeting chimera (PROTAC) delivery. Rational nanocarrier design enables spatial and temporal control for advanced TPD therapies.

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Area of Science:

  • Biotechnology
  • Nanomedicine
  • Chemical Biology

Background:

  • Targeted protein degradation (TPD) using proteolysis-targeting chimeras (PROTACs) offers a novel therapeutic strategy for previously undruggable targets.
  • Current PROTAC limitations include poor cell permeability and suboptimal in vivo biodistribution, hindering therapeutic efficacy.
  • There is a critical need for programmable PROTAC delivery systems that provide spatial and temporal control over TPD.

Purpose of the Study:

  • To review recent advancements in nanoparticle-based PROTAC delivery systems.
  • To highlight the role of nanoparticle chemistry and surface engineering in achieving spatiotemporally controlled protein degradation.
  • To discuss the integration of stimuli-responsive release, immune modulation, imaging, and co-therapies within nanocarrier designs.

Main Methods:

  • Focus on lipid-based, polymeric, and inorganic nanoparticles for PROTAC delivery.
  • Exploration of nanoparticle surface engineering for controlled drug release and targeting.
  • Discussion of integrating multiple functionalities into nanocarriers for enhanced therapeutic outcomes.

Main Results:

  • Nanoparticles can overcome PROTAC delivery challenges, improving cell permeability and biodistribution.
  • Stimuli-responsive nanoparticles enable precise spatiotemporal control over TPD.
  • Multifunctional nanocarriers can combine PROTAC delivery with immune modulation, imaging, and synergistic therapies.

Conclusions:

  • Rational nanocarrier design is crucial for unlocking the therapeutic potential of PROTACs.
  • Programmable, multifunctional nanodelivery systems are key to advancing targeted protein degradation therapies.
  • Integration of synthetic and self-assembly chemistry will drive the development of next-generation PROTAC delivery systems.