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Related Concept Videos

Migration00:53

Migration

8.7K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
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Cell Migration01:09

Cell Migration

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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.
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Cell Migration01:19

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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.
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Cytoskeletal Coordination in Cell Migration01:32

Cytoskeletal Coordination in Cell Migration

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A migrating cell changes its shape during the cyclic events of attachment and detachment from the substratum and repositions the cell organelles correspondingly. These complex events are orchestrated by the dynamic cytoskeletal network comprising actin filaments, intermediate filaments, and microtubules. Cytoskeletal crosstalk — the direct and indirect communication between the different components — is crucial for this coordination. Direct communication involves various linker...
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Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

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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...
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Role of Myosin in Cell Migration01:18

Role of Myosin in Cell Migration

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Myosins are multimeric motor proteins involved in various cellular processes such as migration, adhesion, and proliferation. Myosin II is the most common type in animal cells, which binds and cross-links actin filaments.
Myosin II  is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction....
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Related Experiment Video

Updated: Jan 5, 2026

A Simple Migration/Invasion Workflow Using an Automated Live-cell Imager
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A Simple Migration/Invasion Workflow Using an Automated Live-cell Imager

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[Migrants.]

Rino Scuccato1

  • 1Neurologo libero professionista, Vicenza.

Recenti Progressi in Medicina
|October 29, 2019
PubMed
Summary

This summary examines European migration policies and the Sea Watch 3 incident. It highlights the complex viewpoints surrounding migrant disembarkation on Italian coasts.

Area of Science:

  • Sociology
  • Political Science
  • International Relations

Background:

  • The European migrant crisis presents complex ethical and political challenges.
  • The case of the Sea Watch 3 humanitarian vessel and its commander, Carola Rackete, brought these issues to the forefront.
  • Debates surrounding migrant rescue and disembarkation policies are ongoing.

Purpose of the Study:

  • To summarize diverse perspectives on migrant disembarkation in Italy.
  • To analyze the broader implications of migration towards Europe.
  • To contextualize these issues within the specific case of the Sea Watch 3.

Main Methods:

  • Qualitative analysis of viewpoints.
  • Case study approach focusing on the Sea Watch 3 incident.

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  • Review of relevant policies and debates.

    • Main Results:

    • Multiple, often conflicting, viewpoints exist regarding migrant arrivals.
    • The Sea Watch 3 case exemplifies the tensions between humanitarian rescue and national border control.
    • Exhaustion and desperation of migrants were key factors in the decision to disembark.

    Conclusions:

    • The disembarkation of migrants involves significant legal, ethical, and political considerations.
    • International cooperation and clear policies are needed to address migration challenges.
    • The Sea Watch 3 incident underscores the need for humane and effective solutions for migrants at sea.