Related Experiment Video

Updated: Feb 19, 2026

Stimulation of Cytoplasmic DNA Sensing Pathways In Vitro and In Vivo
11:44

Stimulation of Cytoplasmic DNA Sensing Pathways In Vitro and In Vivo

Published on: September 18, 2014

9.3K

Does a quorum sensing mechanism direct the behavior of immune cells?

Leïla Perié1, Juhan Aru, Philippe Kourilsky

  • 1Collège de France, Chair of molecular immunology, 11, place Marcelin-Berthelot, 75005 Paris, France. perie.leila@gmail.com

Comptes Rendus Biologies
|March 30, 2013
PubMed

More Related Videos

Automated Separation of C. elegans Variably Colonized by a Bacterial Pathogen11:18

Automated Separation of C. elegans Variably Colonized by a Bacterial Pathogen

Published on: March 21, 2014

9.0K
Quantitative Measurement of the Immune Response and Sleep in Drosophila12:16

Quantitative Measurement of the Immune Response and Sleep in Drosophila

Published on: December 4, 2012

16.0K

Related Concept Videos

Autocrine Signaling01:01

Autocrine Signaling

Autocrine signaling is one of the many signaling mechanisms that function inside multicellular organisms to carry out intercellular communication. In this type of signaling mechanism, the same cell that secretes an extracellular signaling molecule also expresses the receptors to bind and respond to that signaling molecule.
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
52.3K
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
740
Bacterial Signaling01:30

Bacterial Signaling

Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
41.6K
Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
25.2K
What is Cell Signaling?02:03

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
131.2K
Yeast Signaling01:28

Yeast Signaling

Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes (cells with a nucleus). Cell signaling in yeast is similar to signaling in other eukaryotic cells. A ligand, such as a protein or a small molecule released from a yeast cell, attaches to a receptor on the cell surface. The binding stimulates second-messenger kinases to activate or inactivate transcription factors that further regulate gene expression. Many of the yeast intracellular signaling cascades have similar...
17.7K