Scratch Response Assessment
Scratch Response Assessment - Related Videos
08:36
Fragility Assessment of Bovine Cortical Bone Using Scratch Tests
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Cited by 4 •
2017
This study assesses the fracture toughness of bovine cortical bone at the sub-meso levels using microscopic scratch tests. This is an original, objective, rigorous, and reproducible method proposed to probe fracture toughness below the macroscopic scale. Potential applications are studying changes in bone fragility due to diseases like osteoporosis.
12:09
The Use of Fluorescent Target Arrays for Assessment of T Cell Responses In vivo
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Cited by 12 •
2014
The ability to monitor T cell responses in detail in vivo is important for the development of our understanding of the immune response. Here we describe the use of fluorescent target arrays (FTAs) in an in vivo T cell assay that assesses >250 parameters simultaneously by flow cytometry.
07:03
Assessing Stomatal Response to Live Bacterial Cells using Whole Leaf Imaging
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Cited by 38 •
2010
We have developed a simple and reproducible protocol to access stomatal response to live bacteria. This method minimizes wounding and manipulation of the leaf as compared to the use of epidermal peels reported previously.
08:59
A Cost Effective and Adaptable Scratch Migration Assay
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Cited by 1 •
2020
We present a cost-effective method to the scratch migration assay that provides a new approach for determining cell migration without the use of equipment-intensive methods. While fibroblasts were used in this protocol, it can be adapted and utilized to study additional cell types and influences on cell migration.
08:40
Optimization of the Wound Scratch Assay to Detect Changes in Murine Mesenchymal Stromal Cell Migration After Damage by Soluble Cigarette Smoke Extract
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Cited by 44 •
2015
The capacity to migrate is a key function of many different cell types, including mesenchymal stromal cells (MSCs). However, quantifying alterations in migratory capacity after damage is challenging. This protocol describes an easily adaptable migration assay that uses rigorous statistics to quantify changes in MSC migratory capacity after damage.
FAQs
Gap closure reflects more than a single cellular event. Cells can migrate into the injured region, proliferate to increase cell numbers, or reorganize at the wound edge. Because these processes may contribute together, interpreting closure requires attention to the overall pattern rather than assuming that a faster reduction in the gap represents one specific mechanism.
Scratch response assessment can be quantified by comparing gap area or calculating closure rate at successive time points. Gap area describes how much of the original opening remains, whereas closure rate captures the pace of recovery. These measures allow researchers to compare healing behavior across conditions and identify responses associated with enhanced or inhibited repair.
A controlled, reproducible gap creates a common starting point for evaluating how cells recover. If the initial injury differs substantially between conditions, changes in gap area or closure rate may reflect starting differences rather than biological responses. Consistent mechanical injury therefore strengthens comparisons among treatments, cell or tissue conditions, and experimental groups.
In a typical workflow, researchers first establish a confluent cell layer, create a consistent mechanical gap, and follow its closure over time. Measurements of the changing gap provide the central readout. Keeping the injury format consistent is important because differences in the starting opening could otherwise complicate comparisons between experimental conditions.
In medicine, this approach supports studies of tissue regeneration and repair capacity. It can also help investigate disease-related healing defects by showing how cells respond after injury under different conditions. The resulting closure measurements provide a way to characterize altered repair behavior and examine whether experimental factors improve or impair recovery.
Researchers can compare gap closure in the presence or absence of a compound to determine whether it enhances or inhibits repair-related behavior. Changes in closure rate or remaining gap area provide the primary outcomes for this comparison. Such testing supports the screening of factors that influence cellular recovery and helps identify candidates for further investigation in regenerative studies.