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Acute Inflammation I: Cellular Phase01:26

Acute Inflammation I: Cellular Phase

The cellular phase of acute inflammation is a tightly orchestrated sequence of events that recruits leukocytes, primarily neutrophils, to sites of tissue injury or infection. Following the initial vascular changes, this phase ensures effective immune cell migration, activation, and function at the affected site to eliminate pathogens and initiate tissue repair.Leukocyte Recruitment CascadeLeukocyte recruitment happens in four steps: margination, adhesion, transmigration, and chemotaxis. Reduced...

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Related Experiment Video

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In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints
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Published on: December 9, 2025

Interstitial leukocyte migration in vivo.

Pui-ying Lam1, Anna Huttenlocher

  • 1Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53706, USA.

Current Opinion in Cell Biology
|June 26, 2013
PubMed
Summary

Leukocyte motility is key for immunity. This study explores how complex external signals guide immune cell movement in tissues, focusing on intracellular pathways for directed migration.

Area of Science:

  • Immunology
  • Cell Biology
  • Biophysics

Background:

  • Leukocyte motility is crucial for immune responses and host defense.
  • Understanding molecular signals regulating leukocyte movement in vitro and in vivo has advanced.
  • A gap exists in comprehending how complex signals are prioritized for directed migration.

Purpose of the Study:

  • To investigate how external cues are translated into intracellular signaling pathways.
  • To understand the regulation of leukocyte polarity, directional sensing, and motility in 3D interstitial spaces.

Main Methods:

  • Focus on interstitial migration.
  • Analysis of intracellular signaling pathways.
  • Examination of leukocyte polarity and directional sensing in 3D environments.

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Related Experiment Videos

Last Updated: May 10, 2026

In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints
10:10

In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints

Published on: December 9, 2025

Non-invasive Imaging of Leukocyte Homing and Migration in vivo
07:42

Non-invasive Imaging of Leukocyte Homing and Migration in vivo

Published on: December 5, 2010

Leukocyte Infiltration of Cremaster Muscle in Mice Assessed by Intravital Microscopy
08:11

Leukocyte Infiltration of Cremaster Muscle in Mice Assessed by Intravital Microscopy

Published on: April 15, 2020

Main Results:

  • External cues are translated into intracellular signaling pathways.
  • These pathways regulate leukocyte polarity, directional sensing, and motility.
  • Directed migration in 3D interstitial spaces is achieved through prioritized signal interpretation.

Conclusions:

  • Elucidates the mechanisms of directed leukocyte migration in interstitial environments.
  • Highlights the importance of intracellular signaling in immune cell navigation.
  • Provides insights into how immune cells prioritize complex signals for effective host defense.