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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.
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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.
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Autophagic Cell Death01:18

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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.
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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.
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Cancer Therapies02:49

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Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
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Quantitative Analysis of Autophagy using Advanced 3D Fluorescence Microscopy
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Autophagy and cancer therapy.

Julio M Pimentel1, Jun Ying Zhou2, Gen Sheng Wu3

  • 1Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA; Institutional Research Academic Career Development Award Program, University of California San Diego, La Jolla, CA, 92093, USA.

Cancer Letters
|October 12, 2024
PubMed
Summary
This summary is machine-generated.

Autophagy, a cellular recycling process, plays a dual role in cancer, potentially promoting or inhibiting tumor growth. Understanding autophagy regulation is key to improving cancer therapies and immunotherapy.

Keywords:
AutophagyCancerResistanceTherapy

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Area of Science:

  • Cell Biology
  • Oncology

Background:

  • Autophagy is a fundamental cellular process for degrading damaged components via autophagosomes and lysosomes.
  • This pathway is crucial for cellular homeostasis, energy production, and nutrient supply, especially during stress.
  • Dysregulated autophagy is linked to genomic instability, DNA damage, and cancer development.

Purpose of the Study:

  • To review the regulation of autophagy.
  • To explore the multifaceted role of autophagy in cancer.
  • To discuss the implications of autophagy in cancer therapy and drug resistance.

Main Methods:

  • Literature review of recent findings on autophagy.
  • Analysis of autophagy's role in cancer initiation, progression, and treatment.

Main Results:

  • Autophagy can be both tumor-suppressive and tumor-promoting.
  • Overactivated autophagy aids cancer cell survival and drug resistance.
  • Autophagy influences tumor immunity and the tumor microenvironment.

Conclusions:

  • Autophagy manipulation holds promise for enhancing cancer therapies, including immunotherapy.
  • Further research into autophagy's complex roles in cancer is warranted.