Cytomove: Browser-Based Tool for Automated Scratch Wound Healing Assay Analysis
Researchers have developed Cytomove, a browser-local software tool that automates quantification of scratch wound healing assays without requiring software installation or uploading microscopy images to external servers. The tool uses a variance-and-threshold segmentation pipeline written in client-side JavaScript and was compared against the established ImageJ/Fiji Wound Healing Size Tool across 31 paired measurements, achieving correlation coefficients above 0.997. It addresses longstanding reproducibility and data-privacy concerns in a widely used cell migration assay.
Cytomove is a newly described browser-based tool designed to streamline the quantification of in vitro scratch wound healing assays, a standard method for studying collective cell migration. The software runs entirely within a web browser or a desktop package built on the same codebase, meaning microscopy images never leave the user's machine—an important consideration for data privacy and institutional compliance. Its segmentation approach uses an explainable variance-and-threshold pipeline, and results are displayed as an inspectable overlay before any data are exported, improving transparency and reproducibility. In a preliminary validation against the widely used ImageJ/Fiji Wound Healing Size Tool (WHST), Cytomove achieved a mean absolute percentage error of 4.1% and Pearson r = 0.9975 on a clean brightfield image set, and a median area error of 6.6% with r = 0.9984 on a phase-contrast time course. The tool exports wound area, wound area fraction, wound width profile statistics, quality-control labels, and full analysis metadata in multiple formats including CSV, Excel, PNG, and ZIP. Informal testing suggests typical single-image analysis completes within seconds on a modern browser with no installation required. The authors note that quality-control labels and segmentation overlays help surface near-closure artifacts and real-world image acquisition difficulties that simpler tools may miss.
What's missing
The validation is described as 'preliminary,' covering only five image sets and 31 paired measurements, which is a small sample. The study does not report formal statistical significance testing for the comparison with WHST, nor does it evaluate performance across diverse cell types, staining conditions, or imaging modalities beyond brightfield and phase-contrast. Long-term reproducibility across different browsers, operating systems, and image resolutions is not systematically assessed. The tool has not yet undergone peer review, as this is a preprint posted to bioRxiv.
What different sources said
- bioRxivCenter
Cytomove: a browser-local and reviewable workflow for scratch wound healing assay quantification
Related
Gut Bacteria Enzyme Found to Break Down Heat-Processed Food Compounds, Producing Novel Biogenic Amines
Researchers have discovered that an enzyme in common gut bacteria can degrade N-epsilon-carboxymethyllysine (CML), a compound formed during thermal food processing, producing previously unknown biogenic amines. The enzyme, ornithine decarboxylase SpeC from enterobacteria, acts on CML and related modified lysine derivatives through a low-level 'underground' catalytic activity. This finding suggests a previously unrecognized communication axis between thermally processed dietary compounds and gut microbial physiology, with potential implications for host health.
Full-Length Gene Sequencing Reveals Two Distinct Bacterial Communities in Black-Legged Ticks Expanding Into Canada
Researchers used Oxford Nanopore full-length 16S rRNA gene sequencing to characterize the microbiome of Ixodes scapularis black-legged ticks collected in Nova Scotia, Canada, distinguishing between tick-adapted bacteria and environmentally acquired bacteria. The study comes as I. scapularis — the primary vector of Lyme disease — is rapidly expanding northward into Canada due to climate change. The findings suggest that environmentally derived bacteria in tick microbiomes are not mere contamination, which has implications for how tick microbiome data is collected and interpreted across surveillance studies.
Study Identifies Metabolic Link Between Cell Envelope Stress and Biofilm Formation in Bacteria
Researchers have discovered that the metabolite acetyl-CoA directly inhibits enzymes that degrade the bacterial signaling molecule c-di-GMP, connecting cell envelope biosynthesis stress to biofilm formation in Pseudomonas aeruginosa. The study found that sub-inhibitory concentrations of antibiotics targeting early peptidoglycan biosynthesis — but not other antibiotic classes — elevate c-di-GMP levels by reducing phosphodiesterase activity, with acetyl-CoA competing for the enzyme active site. Because the relevant enzyme domain is broadly conserved across bacterial species, this checkpoint mechanism may be widespread and could have implications for understanding antibiotic-induced biofilm responses.