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Related Concept Videos

Inflammation01:38

Inflammation

Overview
Inflammation: Introduction01:28

Inflammation: Introduction

Inflammation is a fundamental, protective biological response of vascularized tissues to cellular injury, infection, or harmful stimuli. Its primary function is to eliminate the initial cause of injury, clear necrotic cells and damaged tissue, and initiate the necessary repair processes.Cardinal SignsAcute inflammation presents with classic signs. Redness results from vasodilation and increased blood flow. Heat is due to increased metabolism and circulation. Swelling results from the...
Acute Inflammation III: Local and Systemic Effects01:25

Acute Inflammation III: Local and Systemic Effects

Acute inflammation produces a coordinated set of local and systemic changes that limit injury, eliminate pathogens, and initiate repair. These responses arise within minutes of infection, trauma, or chemical insult and are driven by vascular alterations and leukocyte-derived mediators. When the stimulus resolves, the reaction typically abates within days.Local EffectsAt the site of injury, arteriolar vasodilation increases blood flow, resulting in redness and warmth. Simultaneously, increased...
Inflammatory Response I: Vascular and Cellular01:30

Inflammatory Response I: Vascular and Cellular

The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
Acute Inflammation I: Inflammatory Response01:26

Acute Inflammation I: Inflammatory Response

Acute inflammation is a rapid, short-lived physiological response to tissue injury or infection, designed to eliminate harmful agents and initiate repair. This tightly regulated process typically lasts from minutes to several days and is triggered by factors such as microbial invasion, physical trauma, or chemical injury.Recognition and Mediator ReleaseThe inflammatory response begins when resident immune cells—such as mast cells, macrophages, and dendritic cells—detect damage-associated...
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...

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Related Experiment Video

Updated: May 20, 2026

Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
07:48

Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation

Published on: May 16, 2016

Inflammation amplification by Versican: the first mediator.

Zhenwei Zhang1, Lei Miao2, Lianghua Wang1

  • 1Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai 200433, China.

International Journal of Molecular Sciences
|July 28, 2012
PubMed
Summary
This summary is machine-generated.

Inflammation amplification involves the extracellular matrix (ECM). Versican, an ECM component, is regulated by cytokines and may initiate inflammatory responses, aiding in understanding inflammation pathogenesis.

Keywords:
cytokinesextracellular matrix homeostasisinflammation amplificationversican

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On-Chip Endothelial Inflammatory Phenotyping
12:43

On-Chip Endothelial Inflammatory Phenotyping

Published on: July 21, 2012

Related Experiment Videos

Last Updated: May 20, 2026

Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
07:48

Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation

Published on: May 16, 2016

On-Chip Endothelial Inflammatory Phenotyping
12:43

On-Chip Endothelial Inflammatory Phenotyping

Published on: July 21, 2012

Area of Science:

  • Biochemistry
  • Immunology
  • Cell Biology

Background:

  • Inflammation is a regulated biological program crucial for host defense.
  • The inflammatory microenvironment, including the extracellular matrix (ECM), plays a key role in modulating inflammatory processes.
  • Growing evidence highlights the ECM's involvement in the early stages of inflammation.

Purpose of the Study:

  • To investigate the role of versican, a major ECM proteoglycan, in the inflammatory response.
  • To understand how cytokines regulate versican and influence the inflammatory microenvironment.
  • To explore versican's potential as an early mediator in the amplification of inflammation.

Main Methods:

  • Analysis of cytokine-mediated regulation of versican.
  • Assessment of versican's contribution to the inflammatory microenvironment.
  • Investigation of versican's role in initiating and amplifying inflammatory responses.

Main Results:

  • Versican is a ubiquitous ECM component regulated by cytokines.
  • Cytokines alter ECM homeostasis by affecting versican.
  • Inappropriate versican production may promote subsequent inflammatory responses.

Conclusions:

  • Versican is implicated as an early step in the amplification of inflammation.
  • Understanding versican's regulation and function may elucidate inflammation pathogenesis.
  • Targeting versican could offer new therapeutic strategies for inflammatory diseases.