Theranostics 2022; 12(4):1557-1569. doi:10.7150/thno.69475 This issue

Review

Fibroblast activation protein-based theranostics in cancer research: A state-of-the-art review

Liang Zhao1,2#, Jianhao Chen2#, Yizhen Pang1#, Kaili Fu3, Qihang Shang1, Hua Wu1, Long Sun1✉, Qin Lin2✉, Haojun Chen1✉

1. Department of Nuclear Medicine and Minnan PET Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
2. Department of Radiation Oncology, The First Affiliated Hospital of Xiamen University, Xiamen, China
3. Department of Oncology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
# Contributed equally to this work

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Citation:
Zhao L, Chen J, Pang Y, Fu K, Shang Q, Wu H, Sun L, Lin Q, Chen H. Fibroblast activation protein-based theranostics in cancer research: A state-of-the-art review. Theranostics 2022; 12(4):1557-1569. doi:10.7150/thno.69475. Available from https://www.thno.org/v12p1557.htm

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Abstract

Graphic abstract

In recent years, quinoline-based fibroblast activation protein (FAP) inhibitors (FAPI) have shown promising results in the diagnosis of cancer and several other diseases, making them the hotspot of much productive research. This review summarizes the literature for the state-of-the-art FAPI-PET imaging for cancer diagnosis compared with fluorodeoxyglucose (FDG)-PET. We also summarize the use of FAPI-PET for therapeutic regimen improvement and fibroblast activation protein (FAP)-targeted molecule modification strategies, as well as preliminary clinical studies regarding FAP-targeted radionuclide therapy. Our qualitative summary of the literature to date can inform future research directions, medical guidelines, and optimal clinical decision-making.

Keywords: cancer-associated fibroblasts (CAF), fibroblast activation protein (FAP), targeted radionuclide therapy, PET/CT, cancer management