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Related Concept Videos

Cancer Cell Migration through Invadopodia01:35

Cancer Cell Migration through Invadopodia

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, invadopodia can...
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Intralumenal Vesicles and Multivesicular Bodies

Intraluminal vesicles (ILVs) are small vesicles 50-80 nm in diameter formed during the maturation of early endosomes. A specialized endosome containing numerous ILVs is called a multivesicular body (MVB). ILVs contain internalized molecules such as antigens, nucleic acids, proteins, and metabolites. Some of these molecules are released from the MVBs inside exosomes and are transported to other cells. Other MVBs contain molecules that are retained in the ILVs and are later degraded within the...
Mechanisms of Membrane Domain Formation00:59

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Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a virus that...
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2D and 3D Matrices to Study Linear Invadosome Formation and Activity
12:25

2D and 3D Matrices to Study Linear Invadosome Formation and Activity

Published on: June 2, 2017

Invadosomes: intriguing structures with promise.

Frédéric Saltel1, Thomas Daubon, Amélie Juin

  • 1Institut Européen de Chimie-Biologie, Université de Bordeaux, Pessac, France.

European Journal of Cell Biology
|July 8, 2010
PubMed
Summary

Podosomes and invadopodia, known as invadosomes, are actin-rich cell structures. These structures degrade extracellular matrix and are implicated in diseases, with ongoing research into their broader biological roles.

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2D and 3D Matrices to Study Linear Invadosome Formation and Activity
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Area of Science:

  • Cell Biology
  • Biochemistry
  • Pathology

Background:

  • Podosomes and invadopodia are actin-rich adhesion structures, forming the invadosome family.
  • Podosomes form in myelomonocytic cells and other cells upon stimulation; invadopodia appear in cancer cells.
  • Invadosomes uniquely possess metalloproteases for extracellular matrix degradation, linking them to invasion.

Purpose of the Study:

  • To review the current understanding of invadosome formation, dynamics, and function.
  • To explore the expanding roles of invadosomes beyond matrix degradation.
  • To highlight the ongoing development of 3D analysis for studying invadosomes in disease.

Main Methods:

  • Literature review of invadosome research over the past three decades.
  • Analysis of molecular mechanisms governing invadosome assembly and activity.
  • Focus on advancements in 3D imaging for ex vivo and in vivo studies.

Main Results:

  • Invadosomes are involved in diverse biological processes beyond cancer invasion.
  • Significant progress has been made in understanding the molecular basis of invadosome function.
  • 3D analysis techniques are crucial for demonstrating invadosome roles in pathology.

Conclusions:

  • Invadosomes are critical cellular structures with multifaceted functions.
  • Further research is needed to establish the direct link between invadosomes and human diseases.
  • Advanced imaging is key to elucidating invadosome involvement in physiological and pathological contexts.