Towards integration of 64Cu-DOTA-trastuzumab PET-CT and MRI with mathematical modeling to predict response to neoadjuvant therapy in HER2 + breast cancer

Jarrett, Angela M.; Hormuth, David A.; Adhikarla, Vikram; Sahoo, Prativa; Abler, Daniel; Tumyan, Lusine; Schmolze, Daniel; Mortimer, Joanne; Rockne, Russell C.; Yankeelov, Thomas E. (2020). Towards integration of 64Cu-DOTA-trastuzumab PET-CT and MRI with mathematical modeling to predict response to neoadjuvant therapy in HER2 + breast cancer. Scientific reports, 10(1), p. 20518. Springer Nature 10.1038/s41598-020-77397-0

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While targeted therapies exist for human epidermal growth factor receptor 2 positive (HER2 +) breast cancer, HER2 + patients do not always respond to therapy. We present the results of utilizing a biophysical mathematical model to predict tumor response for two HER2 + breast cancer patients treated with the same therapeutic regimen but who achieved different treatment outcomes. Quantitative data from magnetic resonance imaging (MRI) and 64Cu-DOTA-trastuzumab positron emission tomography (PET) are used to estimate tumor density, perfusion, and distribution of HER2-targeted antibodies for each individual patient. MRI and PET data are collected prior to therapy, and follow-up MRI scans are acquired at a midpoint in therapy. Given these data types, we align the data sets to a common image space to enable model calibration. Once the model is parameterized with these data, we forecast treatment response with and without HER2-targeted therapy. By incorporating targeted therapy into the model, the resulting predictions are able to distinguish between the two different patient responses, increasing the difference in tumor volume change between the two patients by > 40%. This work provides a proof-of-concept strategy for processing and integrating PET and MRI modalities into a predictive, clinical-mathematical framework to provide patient-specific predictions of HER2 + treatment response.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Computational Bioengineering

UniBE Contributor:

Abler, Daniel

Subjects:

500 Science > 510 Mathematics
600 Technology > 610 Medicine & health
600 Technology > 620 Engineering

ISSN:

2045-2322

Publisher:

Springer Nature

Funders:

[124] H2020-MSCA-IF-2016 Project ID 753878

Language:

English

Submitter:

Daniel Jakob Silvester Abler

Date Deposited:

27 Jan 2021 11:38

Last Modified:

31 Jan 2021 02:58

Publisher DOI:

10.1038/s41598-020-77397-0

PubMed ID:

33239688

BORIS DOI:

10.48350/150780

URI:

https://boris.unibe.ch/id/eprint/150780

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