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Related Concept Videos

Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon towards...
Chemotaxis in E. coli01:27

Chemotaxis in E. coli

Chemotaxis in Escherichia coli is a sensory-driven motility mechanism that enables bacteria to navigate chemical gradients, moving toward beneficial environments while avoiding harmful conditions. This process relies on a signal transduction system integrating external chemical cues with flagellar motor control.Chemoreceptors and Signal DetectionE. coli detects chemical gradients through methyl-accepting chemotaxis proteins (MCPs), which are membrane-bound chemoreceptors that sense attractants...
Flagella and Motility in Bacteria01:18

Flagella and Motility in Bacteria

Flagella are specialized, thread-like structures that extend from a bacteria's cell envelope. They play a crucial role in motility and chemotaxis. Their structural organization and functioning exemplify sophisticated biological engineering, enabling bacterial survival and adaptability in diverse environments.Structure of the FlagellumA bacterial flagellum consists of three key components: the filament, the hook, and basal body. The filament, a long, helical structure composed of repeating...
Cell Migration01:19

Cell Migration

Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
Cell Migration01:09

Cell Migration

Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
Cell Polarization by Rho Proteins01:21

Cell Polarization by Rho Proteins

Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...

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Related Experiment Video

Updated: Jun 21, 2026

Assessment of Dictyostelium discoideum Response to Acute Mechanical Stimulation
10:40

Assessment of Dictyostelium discoideum Response to Acute Mechanical Stimulation

Published on: November 9, 2017

[Chemotaxis and disease].

Sara Rojas-Dotor1, Julia Pérez-Ramos, Ma Guadalupe Rico-Rosillo

  • 1Unidad de Investigación Médica en Inmunología, Hospital de Pediatría, Instituto Mexicano del Seguro Social.

Revista Medica Del Instituto Mexicano Del Seguro Social
|July 24, 2009
PubMed
Summary

Chemotaxis guides cell movement along chemical gradients. This study explores biological substances like complement and their role in disease processes.

Area of Science:

  • Cellular Biology
  • Biochemistry

Context:

  • Chemotaxis is a fundamental cellular process involving directed cell migration.
  • Understanding chemotaxis is crucial for various biological and medical fields.

Purpose:

  • To define chemotaxis and explore its mechanisms.
  • To describe biological substances, including complement components, involved in chemotaxis.
  • To elucidate the relationship between these substances and disease pathogenesis.

Summary:

  • Chemotaxis enables cells to navigate chemical gradients, a vital function for development and immunity.
  • The abstract highlights the role of specific biological substances, such as complement factors, in mediating chemotactic responses.
  • It also emphasizes the connection between these chemotactic mediators and the progression or development of various diseases.

More Related Videos

Imaging G Protein-coupled Receptor-mediated Chemotaxis and its Signaling Events in Neutrophil-like HL60 Cells
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Imaging G Protein-coupled Receptor-mediated Chemotaxis and its Signaling Events in Neutrophil-like HL60 Cells

Published on: September 14, 2016

Time-lapse Imaging of Mouse Macrophage Chemotaxis
09:33

Time-lapse Imaging of Mouse Macrophage Chemotaxis

Published on: April 2, 2020

Related Experiment Videos

Last Updated: Jun 21, 2026

Assessment of Dictyostelium discoideum Response to Acute Mechanical Stimulation
10:40

Assessment of Dictyostelium discoideum Response to Acute Mechanical Stimulation

Published on: November 9, 2017

Imaging G Protein-coupled Receptor-mediated Chemotaxis and its Signaling Events in Neutrophil-like HL60 Cells
08:24

Imaging G Protein-coupled Receptor-mediated Chemotaxis and its Signaling Events in Neutrophil-like HL60 Cells

Published on: September 14, 2016

Time-lapse Imaging of Mouse Macrophage Chemotaxis
09:33

Time-lapse Imaging of Mouse Macrophage Chemotaxis

Published on: April 2, 2020

Impact:

  • Provides a foundational understanding of cell migration.
  • Highlights the significance of complement system components in cellular signaling.
  • Establishes a link between chemotaxis and disease, suggesting potential therapeutic targets.