Researchers at the University of Chicago have shed light on the role of tumor-promoting factors induced by radiotherapy and their potential impact on future therapeutic strategies. The article, published in Nature on May 14, 2025, points to radiation-induced amphiregulin as a key driver of tumor metastasis.
The abscopal effect occurs when therapy leads to the regression of metastases distant from the target tumor. In the current study, researchers from INSERM aimed to evaluate the abscopal effect potentially inducted by the use the targeted radionuclide therapy (TRT) candidate, [131I]ICF-01012, which has been previously shown to target only pigmented metastases.
A combination of radiation therapy and CD47 blockade induced an abscopal effect in animal studies even in animals that lacked T cells, researchers reported in the Nov. 21, 2022, online issue of Nature Cancer.
A combination of radiation therapy and CD47 blockade induced an abscopal effect in animal studies even in animals that lacked T cells, researchers reported in the Nov. 21, 2022, online issue of Nature Cancer. The findings are “the first demonstration of T-cell-independent abscopal response,” co-corresponding author Edward Graves told BioWorld. “We’re not trying to say that all abscopal responses are macrophage-mediated. There are plenty that require T cells,” Graves clarified. But “there is another avenue of abscopal responses that has not been reported. ... All the abscopal literature is about stimulating an adaptive response.”
A study led by Chinese radiologists at Peking University in Beijing has shown that positron emission tomography imaging of intercellular adhesion molecule-1 (ICAM-1) expression is a predictor for the abscopal effect, whereby nonirradiated cancers respond to radiotherapy.
A study led by Chinese radiologists at Peking University in Beijing has shown that positron emission tomography imaging of intercellular adhesion molecule-1 (ICAM-1) expression is a predictor for the abscopal effect, whereby nonirradiated cancers respond to radiotherapy.
