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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.
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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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Translocation of Proteins into the Mitochondria01:19

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Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
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Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

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Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
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Electron Transport Chain: Complex I and II01:46

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The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
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Related Experiment Video

Updated: Dec 22, 2025

Visualizing Mitophagy with Fluorescent Dyes for Mitochondria and Lysosome
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Mitophagy in cardiovascular disease.

Hong Zhou1, Lu He2, Gaosheng Xu3

  • 1Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drugs Study, Hengyang Medical College, University of South China, Hengyang 421001, Hunan Province, China; Department of Radiology, The First Affiliated Hospital, University of South China, Hengyang, Hunan Province, China.

Clinica Chimica Acta; International Journal of Clinical Chemistry
|May 4, 2020
PubMed
Summary

Mitochondria dysfunction contributes to cardiovascular diseases (CVD). Mitophagy, a cellular process, removes damaged mitochondria, and its modulation offers a potential therapeutic strategy for managing CVD.

Keywords:
AtherosclerosisCardiac hypertrophyHeart failureHypertensionIschemiareperfusion injuryMitophagy

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Area of Science:

  • Biomedical Science
  • Cardiovascular Research
  • Cellular Biology

Background:

  • Cardiovascular disease (CVD) is a major global health concern, linked to high morbidity and mortality.
  • Mitochondrial dysfunction is increasingly recognized as a key factor in the pathogenesis of various CVDs, including atherosclerosis, hypertension, and heart failure.
  • Mitophagy, a selective form of autophagy, plays a crucial role in maintaining mitochondrial quality and cardiac function under stress.

Purpose of the Study:

  • To review the latest findings on the mechanistic and functional roles of mitophagy in cardiovascular disease (CVD) pathogenesis.
  • To explore the potential of targeting mitophagy as a therapeutic strategy for CVD management.

Main Methods:

  • Literature review of recent research on mitophagy and cardiovascular diseases.
  • Analysis of the mechanisms underlying mitophagy in cardiac stress and disease conditions.
  • Examination of existing and potential therapeutic interventions targeting mitophagy.

Main Results:

  • Mitochondrial dysfunction is implicated in a wide range of cardiovascular conditions.
  • Mitophagy acts as a critical quality control mechanism to preserve cardiac function during stress.
  • Dysregulation of mitophagy is observed in various cardiovascular diseases.

Conclusions:

  • Modulating mitophagy pathways presents a promising therapeutic avenue for cardiovascular disease management.
  • Understanding mitophagy's role is crucial for developing novel treatments for heart conditions.
  • Targeting mitophagy could offer new strategies to combat cardiovascular morbidity and mortality.