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Related Concept Videos

Migration00:53

Migration

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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 Migration01:19

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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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Cell Migration01:09

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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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Cancer Cell Migration through Invadopodia01:35

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Invadosome is a broad category of cell surface structures with proteolytic activity that  degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
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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 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.
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Updated: Feb 12, 2026

Nuclear Migration in the Drosophila Oocyte
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Silicone Migration after Buttock Augmentation.

Rafael Biguria1, Otto Rolando Ziegler1

  • 1Renova Hospital, Guatemala, Guatemala; and Ziegler & Ziegler Clinic, Lima, Peru.

Plastic and Reconstructive Surgery. Global Open
|April 11, 2018
PubMed
Summary

A silicone implant leak caused granulomatous lymphadenitis in a patient with enlarged inguinal lymph nodes after gluteal augmentation. Symptoms resolved after implant revision and removal of the foreign material.

Area of Science:

  • Plastic Surgery
  • Pathology

Background:

  • Gluteal augmentation using silicone implants is a common cosmetic procedure.
  • Complications, though rare, can occur, necessitating thorough investigation.

Observation:

  • A 30-year-old woman developed enlarged inguinal lymph nodes and sacral hyperpigmentation 4 months post-gluteal augmentation.
  • Inguinal lymph node biopsy indicated granulomatous lymphadenitis attributed to foreign material.

Findings:

  • Revision surgery revealed a thick capsule around the silicone implant without fluid or macroscopic defects.
  • Microscopic analysis confirmed a silicone leak from the implant.

Implications:

  • This case highlights the potential for subclinical silicone implant leakage to cause delayed inflammatory reactions.

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  • Early diagnosis and surgical intervention are crucial for managing such complications effectively.