New 3-D printed hydrogels for T-cell growth for cancer immunotherapy

New 3-D printed hydrogels for T-cell growth for cancer immunotherapy
Initial prototype of a hydrogel scaffold manufactured with a 3-D printer. Credit: ICMAB-CSIC; IBEC

A team with the participation of researchers from the ICMAB has designed new hydrogels for culturing T-cells or T-lymphocytes, cells of the immune system that are used in cancer immunotherapy with the capacity to destroy tumor cells. These hydrogels can mimic lymph nodes in which T-cells reproduce and provide high rates of cell proliferation. Scientists hope to be able to bring this new technology to hospitals soon. The first details are published in the journal Biomaterials.

The 3-D hydrogels are made of (PEG), a biocompatible polymer widely used in biomedicine, and heparin, an anticoagulant agent. In this case, the polymer provides the structure and necessary for T-cells to grow, while heparin is used to anchor different biomolecules of interest, such as cytokine CCL21, a protein present in the that has a major role in cell migration and proliferation.

Adoptive cell therapy

Cancer immunotherapy is based on using and strengthening the patients' immune system so that it recognizes and fights without damaging healthy tissues. One such possible treatment, adoptive cell therapy, consists of extracting T-cells from patients, modifying them to make them more active, making numerous copies of them, and injecting them back into patients.

"This personalized therapy, although still very novel, seems to have more lasting effects than current oncological therapies, thanks to some T-lymphocytes that are capable of conferring immunity over time," says researcher Judith Guasch from the Institute of Materials Science of Barcelona (ICMAB-CSIC). "Its application is limited by the current cell culture media, since they are not effective enough for the proliferation and growth of a relevant amount of therapeutic T-cells in a short time and in an economically viable way."

New 3-D printed hydrogels for T-cell growth for cancer immunotherapy
Figure: Simplified diagram showing the process of adoptive cell therapy: extraction of cells, expansion and differentiation, and injection of cells into patients. Credit: Biomaterials

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More information: Eduardo Pérez del Río et al. CCL21-loaded 3D hydrogels for T cell expansion and differentiation, Biomaterials (2020). DOI: 10.1016/j.biomaterials.2020.120313
Journal information: Biomaterials

Provided by Institut de Ciència de Materials de Barcelona
Citation: New 3-D printed hydrogels for T-cell growth for cancer immunotherapy (2020, August 31) retrieved 24 November 2020 from https://medicalxpress.com/news/2020-08-d-hydrogels-t-cell-growth-cancer.html
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