Abstract：
:Understanding the human cytotoxic T lymphocyte (CTL) biology is crucial to develop novel strategies aiming at maximizing their lytic capacity against cancer cells. Here we introduce an agent-based model, calibrated on population-scale experimental data that allows quantifying human CTL per capita killing. Our model highlights higher individual CTL killing capacity at lower CTL densities and fits experimental data of human melanoma cell killing. The model allows extending the analysis over prolonged time frames, difficult to investigate experimentally, and reveals that initial high CTL densities hamper efficacy to control melanoma growth. Computational analysis forecasts that sequential addition of fresh CTL cohorts improves tumor growth control. In vivo experimental data, obtained in a mouse melanoma model, confirm this prediction. Taken together, our results unveil the impact that sequential adjustment of cellular densities has on enhancing CTL efficacy over long-term confrontation with tumor cells. In perspective, they can be instrumental to refine CTL-based therapeutic strategies aiming at controlling tumor growth.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Khazen R,Müller S,Lafouresse F,Valitutti S,Cussat-Blanc Sdoi
10.1038/s41598-019-48711-2subject
Has Abstractpub_date
2019-08-23 00:00:00pages
12308issue
1issn
2045-2322pii
10.1038/s41598-019-48711-2journal_volume
9pub_type
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