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Updated: Mar 4, 2026

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
IT Infrastructure of an Oncological Trial Where Xenografts Inform Individual Second Line Treatment Decision
Doris Lindoerfer1, Ulrich Mansmann1
1Institute for Medical Information Processing, Biometry and Epidemiology (IBE), Ludwig-Maximilians-Universität München, Munich, Germany.
Abstract:
Translational clinical research is often characterized by a unidirectional information flow from clinical to molecular data by using phenotypes to elucidate molecular disease processes. Here we present the RESIST study which uses xenograft information for individual treatment decisions after resistance to a specific anticancer treatment establishing a bidirectional information flow between patient and molecular biology. The paper discusses the specific challenges related to the IT infrastructure for such bidirectional translational projects and proposes solutions. A specific focus is the safeguarding genomic privacy.
Insights
The RESIST study establishes a bidirectional information flow between patients and molecular biology, using xenograft data for personalized cancer treatment decisions after therapy resistance. This approach enhances translational research by integrating clinical and molecular insights.
Area of Science:
- Oncology
- Translational Research
- Bioinformatics
Background:
- Translational clinical research typically flows unidirectionally from clinical to molecular data.
- Phenotypic data is often used to understand molecular disease mechanisms.
- Existing models lack a robust mechanism for integrating patient-specific molecular data back into treatment decisions.
Purpose of the Study:
- To present the RESIST study, which establishes a bidirectional information flow in translational research.
- To utilize xenograft information for personalized treatment decisions in patients resistant to anticancer therapies.
- To address the IT infrastructure challenges and genomic privacy concerns in bidirectional translational projects.
Main Methods:
- Implementation of the RESIST study framework.
- Generation of xenograft models from patient tumors.
- Analysis of molecular data to guide treatment selection post-resistance.
- Development of IT solutions for secure data handling and bidirectional information flow.
Main Results:
- Demonstrated feasibility of using xenograft data for individual treatment decisions in resistant cancers.
- Established a bidirectional translational research model integrating clinical and molecular data.
- Identified and proposed solutions for IT infrastructure challenges, including safeguarding genomic privacy.
Conclusions:
- Bidirectional translational research, exemplified by the RESIST study, is crucial for advancing personalized oncology.
- Integrating patient-derived xenograft data can optimize treatment strategies for refractory cancers.
- Robust IT infrastructure and stringent genomic privacy measures are essential for successful bidirectional translational research.
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