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Related Concept Videos

Autophagy01:27

Autophagy

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,...
Inflammatory Response01:28

Inflammatory Response

An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Delivery Pathways to the Lysosome01:36

Delivery Pathways to the Lysosome

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...
Chronic Inflammation: Introduction01:12

Chronic Inflammation: Introduction

Chronic inflammation is a prolonged, dysregulated immune response that persists for weeks to years when the inciting stimulus is difficult to eradicate or when self‑antigens drive ongoing reactivity. Morphologically, it is defined by mononuclear cell infiltration, progressive tissue destruction, and concurrent attempts at healing via angiogenesis and fibrosis. Compared with acute inflammation, edema is less prominent while cellular infiltration predominates; triggers include persistent...
Cellular Injury V: Apoptosis and Autophagy01:22

Cellular Injury V: Apoptosis and Autophagy

Cells respond to damage and stress through highly coordinated processes that decide whether they survive or undergo controlled self-destruction. Two major pathways involved in this regulation are apoptosis, a type of programmed cell death, and autophagy, a survival mechanism that helps cells adapt to adverse conditions.ApoptosisApoptosis removes aged or injured cells to maintain tissue balance. During this process, the cell shrinks, chromatin condenses and fragments, and membrane-bound...
Phagocytosis of Apoptotic Cells01:17

Phagocytosis of Apoptotic Cells

Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or  immature dendritic cells. Non-professional phagocytes such as  epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes. 
Normal cells contain receptors that prevent them from being recognized by phagocytes.

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Related Experiment Video

Updated: May 26, 2026

Cecal Ligation and Puncture-induced Sepsis as a Model To Study Autophagy in Mice
06:40

Cecal Ligation and Puncture-induced Sepsis as a Model To Study Autophagy in Mice

Published on: February 9, 2014

Autophagy in inflammatory diseases.

Alexander J S Choi1, Stefan W Ryter

  • 1College of Arts and Sciences, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, USA.

International Journal of Cell Biology
|December 23, 2011
PubMed
Summary
This summary is machine-generated.

Autophagy, a cellular recycling process, is crucial for cell survival and immunity. Dysfunctional autophagy contributes to inflammatory diseases like Crohn's and pulmonary conditions, suggesting therapeutic potential.

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Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
07:20

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy

Published on: January 31, 2025

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Last Updated: May 26, 2026

Cecal Ligation and Puncture-induced Sepsis as a Model To Study Autophagy in Mice
06:40

Cecal Ligation and Puncture-induced Sepsis as a Model To Study Autophagy in Mice

Published on: February 9, 2014

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
07:20

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy

Published on: January 31, 2025

Area of Science:

  • Cell Biology
  • Immunology
  • Pathogenesis

Background:

  • Autophagy is a cellular degradation pathway essential for homeostasis, particularly during starvation.
  • It recycles cellular components, promoting cell survival and influencing immune responses.
  • Autophagy interacts with inflammation, programmed cell death, and immune mechanisms, impacting disease development.

Purpose of the Study:

  • To explore the multifaceted role of autophagy in cellular processes.
  • To investigate the link between autophagy dysfunction and inflammatory diseases.
  • To highlight the therapeutic potential of modulating autophagy.

Main Methods:

  • Literature review and synthesis of existing research on autophagy.
  • Analysis of studies linking autophagic protein deficiency to inflammasome activation.
  • Examination of genetic mutations in autophagy-related genes and their association with diseases.

Main Results:

  • Autophagy deficiency in macrophages leads to increased inflammasome activation and cytokine production.
  • Impaired autophagy is implicated in Crohn's disease pathogenesis.
  • Autophagy-dependent mechanisms are involved in inflammatory pulmonary diseases such as cystic fibrosis and pulmonary hypertension.

Conclusions:

  • Autophagy plays a critical role in cellular health, immunity, and disease.
  • Modulating autophagy presents a promising therapeutic strategy for inflammatory and infectious diseases.
  • Further research into autophagy's role in pathogenesis could yield novel treatments.