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Related Concept Videos

Acute Inflammation II: Local and Systemic Effects01:25

Acute Inflammation II: Local and Systemic Effects

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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...
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Chronic Inflammation: Introduction01:12

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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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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.
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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,...
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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...
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Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
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A systems biology approach to study systemic inflammation.

Bor-Sen Chen1, Chia-Chou Wu

  • 1Lab of Control and Systems Biology, Department of Electrical Engineering, National Tsing Hua University, HsinChu, 30013, Taiwan, bschen@ee.nthu.edu.tw.

Methods in Molecular Biology (Clifton, N.J.)
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PubMed
Summary

This study uses systems biology to map Candida albicans-zebrafish interactions, revealing key pathways in fungal pathogenicity and host immune defense. The integrated network aids in developing new antifungal drugs and improving therapies for systemic inflammation.

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Area of Science:

  • Systems biology
  • Host-pathogen interactions
  • Immunology

Background:

  • Systemic inflammation requires precise control of host-pathogen interactions.
  • High-throughput data offers insights into complex inflammatory processes.
  • Understanding fungal pathogenicity and host response is crucial for effective treatment.

Purpose of the Study:

  • To demonstrate a systems biology approach for studying systemic inflammation using a dynamic Candida albicans-zebrafish infectious network.
  • To integrate host-pathogen interaction networks to elucidate pathogenicity mechanisms and immune responses.
  • To identify key proteins and pathways involved in fungal infection and host defense.

Main Methods:

  • Combined microarray data of C. albicans and zebrafish during infection.
  • Constructed integrated infectious protein-protein interaction (PPI) networks.
  • Developed and compared cellular networks for different infection stages (adhesion and invasion).

Main Results:

  • Identified signaling pathways for morphogenesis and hyphal growth of C. albicans as significant interactions.
  • Uncovered key proteins involved in the pathogenic role of hyphal development.
  • Predicted important defense-related proteins in zebrafish.

Conclusions:

  • The integrated network provides a comprehensive view of intercellular invasion and cellular defense during infection.
  • This approach can improve medical therapies for systemic inflammation.
  • Facilitates the development of novel antifungal drugs.