New approach on the use of big data in clinical decision support

Oct. 4, 2018

A new computational approach that allows the identification of molecular alterations associated with prognosis and resistance to therapy of different types of cancer was developed by the research group led by Nuno Barbosa Morais, Group Leader at Instituto de Medicina Molecular João Lobo Antunes (iMM; Portugal), and now published open access in Nucleic Acids Research.

Cancer cells are characterized by perturbations in the regulation of genes and, in particular, by alterations in alternative splicing, a process by which the same gene can originate different proteins. Some of those alterations are associated with different malignant features of cancer and its resistance to treatment but vary from tumor to tumor. “Each patient hosts a different cancer, so that scientists and clinicians need molecular information about many individuals to, supported by data, understand disease mechanisms, assess prognosis and make predictions on the best treatment for each patient based on their tumor’s molecular profile”, explains Nuno Barbosa Morais.

“We have created a software that, by analyzing large databases with clinical and splicing information for thousands of tumors, detects patterns of similarities between different cases and allows, for instance, to identify the relation of each molecular alteration with patient survival, for more than thirty types of cancer. In practice, the program allows to quickly convert a lot of genome-wide data into biological information with clinical potential”, explains Nuno Saraiva Agostinho, first author of the study and student of the PhD programme CAML (Centro Académico de Medicina de Lisboa, da Faculdade de Medicina da Universidade Lisboa).

EurekAlert! has the full article

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