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Updated: Apr 28, 2026

Genome-Wide CRISPR Screen for Unveiling Radiosensitive and Radioresistant Genes
Published on: May 23, 2025
Targeted Radiation, Unintended Evolution
Katharina Lueckerath1, Boris Hadaschik2, Ken Herrmann1
1Department of Nuclear Medicine, University of Duisburg-Essen, DKTK-Partner Site University Hospital Essen, Essen, Germany.
Radioligand therapy can cause changes in blood cell development. This study reveals that [177Lu]Lu-PSMA treatment leads to specific genetic mutations in blood cells, suggesting a selection process rather than damage.
Area of Science:
- Oncology
- Hematology
- Nuclear Medicine
Background:
- Radioligand therapy is a precision oncology approach.
- The long-term effects of radioligand therapy on bone marrow are not fully understood.
Purpose of the Study:
- To investigate the impact of [177Lu]Lu-PSMA radioligand therapy on bone marrow.
- To reframe the understanding of bone marrow effects in radioligand therapy.
Main Methods:
- Analysis of bone marrow following [177Lu]Lu-PSMA administration.
- Genetic sequencing to identify mutations in hematopoietic cells.
Main Results:
- [177Lu]Lu-PSMA treatment promotes the emergence and expansion of clonal hematopoiesis.
- The identified clonal hematopoiesis is enriched for mutations in DNA damage response genes.
- Bone marrow effects are characterized as treatment-emergent clonal selection.
Conclusions:
- Bone marrow effects of [177Lu]Lu-PSMA therapy are due to clonal selection, not collateral toxicity.
- Findings inform biology-guided patient monitoring and theranostics in precision oncology.
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