Focal Adhesion Kinase
Focal Adhesion Kinase - Related Videos
01:17
Intracellular Signaling Affects Focal Adhesions
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2023
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active. Some...
03:25
Cytoskeleton and Focal Adhesion Organization Assay: An Immunofluorescence-based Method to Study Cell Adhesion and Spreading on Substrates
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2023
This video describes the technique of studying the cytoskeleton and focal adhesions in primary human colon cancer cells to understand its variations depending on substrate rigidity. This culture of cancer cells on soft and hard substrates allows various downstream biophysical measurements for cancer prognosis.
02:54
Protein Kinases and Phosphatases
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2020
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven. Protein kinases Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
01:14
Adhesion
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2019
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules. Capillary action is a result of water’s adhesive tendencies. When a narrow glass...
07:40
Assay of Adhesion Under Shear Stress for the Study of T Lymphocyte-Adhesion Molecule Interactions
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Cited by 3 •
2016
This flow adhesion assay provides a simple, high impact model of T cell-epithelial cell interactions. A syringe pump is used to generate shear stress, and confocal microscopy captures images for quantification. The goal of these studies is to effectively quantify T cell adhesion using flow conditions.
FAQs
Autophosphorylation at tyrosine 397 converts this site into a docking platform for Src-family kinases. Their recruitment connects adhesion-associated signaling to downstream pathways that influence the actin cytoskeleton, cell migration, proliferation, and survival. In developmental systems, this step therefore helps translate integrin-mediated attachment into coordinated cellular behavior during tissue organization.
Integrin binding alone does not describe the full signaling event. When integrins bind extracellular matrix proteins and cluster at focal adhesions, they recruit FAK, positioning it for autophosphorylation and subsequent Src-family kinase docking. This spatial organization concentrates adhesion signals where the cytoskeleton is connected, helping cells respond locally to extracellular matrix interactions.
FAK signaling helps integrate mechanical and biochemical information from cell adhesion. Through downstream effects on the actin cytoskeleton, the pathway can influence how cells move, remain viable, and proliferate. In developing tissues, coordinating these responses is important because local adhesion cues must be converted into collective behaviors such as tissue remodeling and formation of organized structures.
Such a study can examine FAK recruitment to focal adhesions, autophosphorylation at tyrosine 397, and the resulting activation of downstream pathways. Researchers can then relate those signaling events to changes in actin organization, migration, proliferation, or survival. Connecting molecular events with tissue remodeling and structure formation helps reveal how adhesion signaling contributes to morphogenesis.
During development, FAK signaling is relevant wherever cells must move, reshape tissues, or assemble organized structures. Its position between integrin-based adhesion and intracellular pathways provides a way to connect extracellular matrix engagement with changes in cell behavior. This makes the pathway useful for interpreting morphogenesis as a coordinated response to both biochemical and mechanical cues.
Disrupted FAK signaling can disturb the relationship between adhesion cues and cellular responses that support tissue organization. Because the pathway affects migration, proliferation, survival, and actin cytoskeleton regulation, altered signaling may change how developing cells move, remodel tissues, or maintain organized structures. Examining such changes helps connect developmental mechanisms with disease contexts in which adhesion signaling is disrupted.