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Biobank for storing living brain samples

15.11.2023

The biobank, containing live samples of brain metastases, represents a breakthrough in cancer research, providing access to valuable data and unique tools to combat this devastating disease. The results of the study have already found practical application in creating individualized approaches to treating patients.

Spanish scientists presented a unique biobank containing living samples of brain tissue from patients with metastases. This biobank, part of the National Network for the Study of Brain Metastases (RENACER), is a valuable resource for research and drug testing. The resulting data will be available for use in global scientific research.

Traditional brain cancer research and drug testing often uses mouse models. However, the search for human samples begins after significant discoveries, and testing them on humans becomes challenging. Obtaining sufficient numbers of human samples is often a long and complex process, requiring adherence to ethical and legal standards and collaboration with various institutions.

The Spanish National Center for Cancer Research (CNIO) offers a solution to this problem by providing a repository for live samples of brain metastases. During metastasis operations at one of RENACER's 18 associated hospitals, patients can voluntarily provide small sections of their brain for inclusion in this biobank.

Living cells in a biobank enable in-depth studies of drug response, creating patient “avatars” to determine optimal treatment. In addition, RENACER used RNA and exosome sequencing to analyze more than 150 brain metastases, and the resulting information was entered into a publicly accessible database.

Manuel Valiente and Eva Ortega-Paino, authors of the study, report that agreements have already been signed to use organotypic cultures from patients as “avatars.” These cultures may serve as potential indicators of drug sensitivity or resistance. Organotypic cultures reproduce certain aspects of the natural physiology and functioning of the body, which require careful processing. After the tissue sample is collected, it is delivered to the biobank within 24 hours under certain temperature conditions (4 to 8 °C). The tissue is then processed into organotypic cultures, separated, and stored for later research.

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