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Related Concept Videos

Autophagy01:27

Autophagy

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Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
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Autophagic Cell Death01:18

Autophagic Cell Death

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Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
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Delivery Pathways to the Lysosome01:36

Delivery Pathways to the Lysosome

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Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
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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 Proteasome01:13

The Proteasome

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Eukaryotic cells can degrade proteins through several pathways. One of the most important among these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
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Targeted Cancer Therapies02:57

Targeted Cancer Therapies

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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
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Related Experiment Video

Updated: Sep 13, 2025

High-Throughput Cellular Profiling of Targeted Protein Degradation Compounds Using HiBiT CRISPR Cell Lines
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Targeted Degradation Technologies Utilizing Autophagy.

Zeyu Zhou1,2, Jiaming Liang3,4, Binghua Cheng3

  • 1Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518000, China.

International Journal of Molecular Sciences
|July 29, 2025
PubMed
Summary
This summary is machine-generated.

Targeted protein degradation uses the cell's own systems to eliminate disease targets. New autophagy-dependent methods offer novel therapeutic strategies for various conditions.

Keywords:
autophagydrug discoverylysosometargeted protein degradation

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Drug Discovery

Background:

  • Targeted protein degradation is a novel drug discovery strategy.
  • It utilizes the cell's endogenous degradation machinery.
  • Autophagy is a cellular clearance pathway with broad substrate recognition.

Purpose of the Study:

  • To summarize recent advances in autophagy-dependent degradation approaches.
  • To highlight their mechanisms, advantages, and therapeutic potential.
  • To explore applications in treating tumors and neurodegenerative diseases.

Main Methods:

  • Autophagosome tethering compounds (ATTEC)
  • Autophagy-targeting chimeras (AUTAC) and AUTOTAC
  • Chaperone-mediated autophagy (CMA)-based methods, nanotechnology, and autophagy-induced antibodies (AUTAB)

Main Results:

  • These methods enable targeted elimination of disease-causing proteins.
  • Autophagy-based strategies demonstrate broad applicability.
  • Various techniques show promise for treating complex diseases.

Conclusions:

  • Autophagy-dependent degradation represents a powerful therapeutic modality.
  • These approaches offer new avenues for drug development.
  • Further research holds potential for treating tumors and neurodegenerative disorders.