Google Summer of Code 2025 Contributor
email: delatorregonzalezsalvador[at]gmail[dot]com
Education: Mathematics and Computer Engineering, University of Seville, Spain
Completed project:
CARTopiaX: an Agent-Based Simulation of CAR T-Cell Therapy built on BioDynaMo
CAR T-cell therapy is a form of cancer immunotherapy that engineers a patient’s T cells
to recognize and eliminate malignant cells. Although highly effective in leukemias and other
hematological cancers, this therapy faces significant challenges in solid tumors due to the
complex and heterogeneous tumor microenvironment. CARTopiaX is an advanced agent-based model
developed to address this challenge, using the mathematical framework proposed in the Nature
paper “In silico study of heterogeneous tumour-derived organoid response to CAR T-cell therapy,”
successfully replicating its core results. Built on BioDynaMo, a high-performance, open-source
platform for large-scale and modular biological modeling, CARTopiaX enables detailed
exploration of complex biological interactions, hypothesis testing, and data-driven discovery
within solid tumor microenvironments.
The project achieved major milestones, including simulations that run more than twice as fast as
previous model, allowing rapid scenario exploration and robust hypothesis validation; high-quality,
well-structured, and maintainable C++ code developed following modern software engineering
principles; and a scalable, modular, and extensible architecture that fosters collaboration,
customization, and the continuous evolution of an open-source ecosystem. Altogether, this work
represents a meaningful advancement in computational biology, providing researchers with a powerful
tool to investigate CAR T-cell dynamics in solid tumor and accelerating scientific discovery while
reducing the time and cost associated with experimental wet-lab research.
Project Proposal: URL
Mentors: Vassil Vassilev, Lukas Breitwieser, Luciana Melina Luque, Tobias Duswald