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PIQUE: An ImageJ plugin for the quantification of toroidal nuclei in biological images

Pons, C.; Mauvezin, C.

2022-11-07 bioinformatics
10.1101/2022.11.07.515391 bioRxiv
Show abstract

The toroidal nucleus is a novel chromosomal instability (CIN) biomarker which complements the micronucleus. Understanding the specific biological stresses leading to the formation of each CIN-associated phenotype requires the evaluation of large panels of biological images collected from different genetic backgrounds and environmental conditions. However, the quantification of toroidal nuclei is currently a manual process which is unviable on a large scale. Here, we present PIQUE (Processing of Images for the QUantification of toroidal nuclEi), a tool that automates the identification of toroidal nuclei, minimizing false positives while highly agreeing with the manual quantifications. Additionally, PIQUE identifies micronuclei for a convenient comparison of both CIN biomarkers. PIQUE is an open-source ImageJ plugin with a user-friendly interface that enables a wide scientific community to easily study the novel toroidal nucleus for the analysis of CIN levels in cellular models. AvailabilityThe plugin, the user manual, and the images used for the evaluation of PIQUE are available upon request from the authors. Contactcarles.pons@irbbarcelona.org and caroline.mauvezin@ub.edu

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