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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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Delivery Pathways to the Lysosome01:36

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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
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Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
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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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Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

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In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
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Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow01:26

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Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
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Related Experiment Video

Updated: Dec 14, 2025

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
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Autophagy and Liver Diseases.

Jia Fan1, Yinghong Shi2, Yuanfei Peng2

  • 1Zhongshan Hospital, Fudan University, 180 FengLin Road, Shanghai, China. fan.jia@zs-hosptal.sh.cn.

Advances in Experimental Medicine and Biology
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Autophagy is crucial for liver health and disease, impacting conditions from fatty liver to cancer. Targeting autophagy offers a promising new therapeutic strategy for treating various liver diseases.

Keywords:
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Area of Science:

  • Cellular Biology
  • Hepatology
  • Disease Mechanisms

Background:

  • Autophagy is a fundamental cellular process vital for maintaining liver physiology.
  • Dysfunctional autophagy is implicated in the pathogenesis of numerous liver diseases, including viral hepatitis, alcoholic liver disease, nonalcoholic fatty liver disease, and hepatocellular carcinoma.
  • Specific genetic disorders like alpha-1-antitrypsin deficiency also involve autophagic pathways in the liver.

Purpose of the Study:

  • To highlight the critical role of autophagy in liver health and disease.
  • To identify autophagy as a significant therapeutic target for liver pathologies.
  • To underscore the ongoing research interest in modulating autophagy for liver disease treatment.

Main Methods:

  • Literature review and synthesis of existing research on autophagy in liver diseases.
  • Analysis of the involvement of autophagy in the development and progression of specific liver conditions.
  • Identification of therapeutic strategies targeting autophagy.

Main Results:

  • Autophagy is integral to normal liver function.
  • Impaired autophagy contributes to the development and exacerbation of diverse liver diseases.
  • Modulating autophagy presents a novel therapeutic avenue for liver disease management.

Conclusions:

  • Autophagy is a key player in liver pathophysiology.
  • Targeting autophagy holds significant therapeutic potential for a range of liver diseases.
  • Further research into autophagy regulation is essential for advancing liver disease treatment.