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Development of Radiotracers for Breast Cancer-The Tumor Microenvironment as an Emerging Target
Amelie Heesch1, Jochen Maurer2, Elmar Stickeler2
1Department of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany.
Abstract:
Molecular imaging plays an increasingly important role in the diagnosis and treatment of different malignancies. Radiolabeled probes enable the visualization of the primary tumor as well as the metastases and have been also employed in targeted therapy and theranostic approaches. With breast cancer being the most common malignancy in women worldwide it is of special interest to develop novel targeted treatments. However, tumor microenvironment and escape mechanisms often limit their therapeutic potential. Addressing tumor stroma associated targets provides a promising option to inhibit tumor growth and angiogenesis and to disrupt tumor tissue architecture. This review describes recent developments on radiolabeled probes used in diagnosis and treatment of breast cancer especially in triple negative type with the focus on potential targets offered by the tumor microenvironment, like tumor associated macrophages, cancer associated fibroblasts, and endothelial cells.
Insights
Radiolabeled probes are crucial for diagnosing and treating breast cancer, particularly triple-negative types. Targeting the tumor microenvironment offers new therapeutic strategies to combat malignancy.
Area of Science:
- Oncology
- Radiochemistry
- Molecular Imaging
Background:
- Molecular imaging and radiolabeled probes are vital for cancer diagnosis, treatment, and theranostics.
- Breast cancer, a prevalent malignancy, necessitates novel targeted therapies due to tumor microenvironment challenges.
- Tumor stroma targets offer a promising avenue for inhibiting tumor growth, angiogenesis, and disrupting tissue architecture.
Purpose of the Study:
- To review recent advancements in radiolabeled probes for breast cancer diagnosis and treatment.
- To focus on triple-negative breast cancer and its specific challenges.
- To explore the potential of targeting tumor microenvironment components.
Main Methods:
- Review of current literature on radiolabeled probes for breast cancer.
- Analysis of molecular imaging techniques and their application.
- Identification of key tumor microenvironment targets.
Main Results:
- Radiolabeled probes facilitate visualization and targeted therapy in various cancers, including breast cancer.
- The tumor microenvironment, including macrophages, fibroblasts, and endothelial cells, presents viable targets.
- Targeting these stromal components can inhibit tumor progression and angiogenesis.
Conclusions:
- Radiolabeled probes targeting the tumor microenvironment show significant promise for breast cancer diagnosis and therapy.
- Further research into these targets could lead to improved treatment outcomes, especially for triple-negative breast cancer.
- Molecular imaging combined with targeted therapies offers a powerful theranostic approach.
