{"id":94421,"date":"2024-04-02T11:12:50","date_gmt":"2024-04-02T09:12:50","guid":{"rendered":"https:\/\/www.pcb.ub.edu\/new-bioinformatics-tool-to-identify-chromosomal-alterations-in-tumour-cells\/"},"modified":"2024-04-10T10:24:23","modified_gmt":"2024-04-10T08:24:23","slug":"new-bioinformatics-tool-to-identify-chromosomal-alterations-in-tumour-cells","status":"publish","type":"post","link":"https:\/\/www.pcb.ub.edu\/en\/new-bioinformatics-tool-to-identify-chromosomal-alterations-in-tumour-cells\/","title":{"rendered":"New bioinformatics tool to identify chromosomal alterations in tumour cells"},"content":{"rendered":"

A team of the University of Barcelona (UB<\/a>) and the Institute for Research in Biomedicine (IRB Barcelona<\/a>), based in PCB, has designed a new computational biological imaging processing tool to identify the chromosomal alterations that are characteristic of cancer cells. This new detection system, known as QATS, will help to improve the diagnosis of cancers and the design of specific treatments for patients, through its ability to automatically identify and quantify the phenotypes associated with chromosomal instability in the nuclei of cancer cells.<\/strong><\/p>\n

Chromosomal instability is common in solid tumours, and it is linked to both the start and the progression of cancer and the metastasis of cancer cells. This phenomenon, caused by changes in the number and structure of chromosomes during cell division, can induce changes in the DNA and affect the entire cellular machinery. Moreover, chromosomal instability not only favours tumour origin and progression, but also enhances intra-tumour heterogeneity and resistance to anti-tumour treatments.<\/p>\n

Now, a team from UB and IRB Barcelona has designed a predictive system -known as QATS (QuAntification of Toroidal nuclei in biological imageS)- that will help to identify and quantify the toroidal nuclei \u2014 new biomarkers of chromosomal instability \u2014 in biological images. The study, published in the journal Bioinformatics, is signed by Prof.<\/strong> Caroline Mauvezin<\/strong>, from the UB\u2019s Faculty of Medicine and Health Sciences and IDIBAPS, and researcher Dr. Carles Pons<\/strong>, member of IRB Barcelona.<\/p>\n

\u201cToroidal nuclei are phenotypically different from normal nuclei, since these present a ring shape and a void with cytosolic material. In the field of research, these have been recently characterized as important biomarkers of chromosomal instability, and they represent an innovative pathway to understand and fight cancer\u201d, notes Caroline Mauvezin<\/strong>, from the UB\u2019s Department of Biomedicine. \u201cTraditionally, the level of chromosomal instability in cancer cells has only been assessed by quantifying micronuclei, which are irregular structures derived from the cell nucleus that may contain chromosomes or chromosomal fragments\u201d, she adds.<\/p>\n

\u201cTherefore, integrating the strategy to assess toroidal nuclei into research and clinical practice has immense potential for tumour stratification and the design of patient-specific treatments\u201d, says Carles Pons, member of the Structural Bioinformatics and Network Biology Laboratory at IRB Barcelona.<\/p>\n

Currently, the QATS system has shown its efficiency in identifying and quantifying toroidal nuclei in preclinical studies of cancer cell lines. \u201cIn the future, the application of QATS in more complex biological scenarios \u2014 human tissue samples from patient biopsies \u2014 will represent a breakthrough for the scientific and medical communities to improve cancer diagnosis and patient treatment\u201d, conclude the authors.<\/p>\n

The QATS program can be downloaded for free on the website: www.toroidalnucleus.org<\/a><\/p>\n

\u00bb Reference article: <\/strong>Carles Pons, Caroline Mauvezin, “QATS: an ImageJ plugin for the quantification of toroidal nuclei in biological images”, Bioinformatics, Volume 40, Issue 1, January 2024, btae026, DOI: 10.1093\/bioinformatics\/btae026<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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