Valve Interstitial Cells
Valve Interstitial Cells - Related Videos
08:55
Isolation and Characterization of Primary Rat Valve Interstitial Cells: A New Model to Study Aortic Valve Calcification
0 Views •
Cited by 16 •
2017
This protocol describes the isolation, culture, and calcification of rat-derived valve interstitial cells, a highly physiological in vitro model of calcific aortic valve disease (CAVD). Exploitation of this rat model facilitates CAVD research in exploring the cell and molecular mechanisms that underlie this complex pathological process.
02:52
Calcification Assay to Measure Calcium Concentration in Aortic Valve Interstitial Cells
0 Views •
2025
This video demonstrates an assay technique for assessing the calcification of the aortic valve interstitial cells in vitro. The assay helps to quantify the calcium concentration using the arsenazo III reagent, a calcium-sensitive dye that reacts with calcium ions to form a purple-colored calcium-arsenazo complex.
04:51
Isolation of Mouse Valve Interstitial Cells: An Enzymatic Method to Isolate and Culture VICs from Mouse Aortic Valve
0 Views •
2025
In this video, we demonstrate the isolation of aortic valve interstitial cells from the heart of an adult mouse using a two-step collagenase procedure and their subsequent culture in low volume of growth media.
05:47
Isolation of Mouse Interstitial Valve Cells to Study the Calcification of the Aortic Valve In Vitro
0 Views •
Cited by 8 •
2021
This article describes the isolation of mouse aortic valve cells by a two-step collagenase procedure. Isolated mouse valve cells are important for performing different assays, such as this in vitro calcification assay, and for investigating the molecular pathways leading to aortic valve mineralization.
07:41
Three-dimensional Cell Culture Model for Measuring the Effects of Interstitial Fluid Flow on Tumor Cell Invasion
0 Views •
Cited by 13 •
2012
Interstitial fluid flow is elevated in solid tumors and can modulate tumor cell invasion. Here we describe a technique to apply interstitial fluid flow to cells embedded in a matrix and then measure its effects on cell invasion. This technique can be easily adapted to study other systems.
FAQs
Valve interstitial cells respond to mechanical forces, biochemical signals, and tissue injury by shifting from a quiescent state toward activated fibroblast-like or myofibroblast-like states. These transitions change how the cells synthesize and remodel extracellular matrix and can increase contractile behavior. The resulting plasticity allows valve tissue to adapt, but persistent activation may promote structural deterioration.
Mechanical forces and biochemical signals act as environmental cues that influence valve interstitial cell state and activity. Their effects can alter extracellular-matrix production, remodeling, and cellular contractility rather than simply changing cell number. Understanding these inputs helps explain how valve tissue adapts to its surroundings and how abnormal signaling may contribute to fibrosis, calcification, or stiffening.
Activation can become harmful when valve interstitial cells sustain changes in matrix synthesis, remodeling, or contractile behavior. These responses may encourage fibrosis, calcification, and increased valve stiffness, linking cellular state to impaired tissue properties. Studying this progression helps investigators connect cell-level changes with broader mechanisms underlying heart valve disorders.
VIC plasticity allows the same cell population to respond differently as the valve environment changes. Quiescent, fibroblast-like, and myofibroblast-like states support different combinations of matrix maintenance, remodeling, and contraction. This flexibility is beneficial for adaptation and repair-related responses, yet it can also create pathological remodeling when signals or injury drive prolonged activation.
Investigators study valve interstitial cells to examine valve development, extracellular-matrix maintenance, tissue remodeling, and disease mechanisms. Research focuses on how mechanical forces, biochemical signals, and injury alter cellular states and tissue behavior. These studies can clarify why fibrosis, calcification, and stiffening develop and can guide investigation of potential therapies for valve disorders.
Valve interstitial cells are relevant to tissue engineering because they help maintain and remodel the extracellular matrix that gives valve leaflets their structure and function. Understanding their state changes can support efforts to create or evaluate engineered valve tissue that responds appropriately to its environment. Their biology also provides context for assessing long-term tissue stability and disease-related remodeling.