Fibroblast activation protein inhibitor (FAPI) PET/CT and PET/MRI: novel tracer for molecular imaging in oncology

Authors

  • Dheeratama Siripongsatian National Cyclotron and PET Centre, Chulabhorn Hospital
  • Chetsadaporn Promteangtrong National Cyclotron and PET Centre, Chulabhorn Hospital
  • Anchisa Kunawudhi National Cyclotron and PET Centre, Chulabhorn Hospital
  • Peerapon Kiatkittikul National Cyclotron and PET Centre, Chulabhorn Hospital
  • Chanisa Chotipanich National Cyclotron and PET Centre, Chulabhorn Hospital

Keywords:

Fibroblast activation protein inhibitor, molecular imaging, oncology, PET/CT, PET/MRI

Abstract

Fibroblast activation protein (FAP) is a type II membrane-bound glycoprotein that is overexpressed on cancer associated fibroblasts (CAFs), which plays a major role in all stages of cancer cells, including carcinogenesis, tumor growth, and metastasis. FAP is not normally found in normal adult tissues. On the other hand, high expression of this glycoprotein is found in wound healing process, chronic inflammation, arthritis, fibrosis, carcinoma, and sarcoma. Radiopharmaceutical specific to FAP, fibroblast activating protein inhibitor (FAPI), was initiated and developed by labeled with the 68Ga isotope and imaging with PET/CT. From the previous study using FPI PET/CT in patients with various types of cancer, 68Ga-FAPI has a high sensitivity for detection of primary tumors and metastases, which could change the course of treatment and provide additional information from the 18F-FDG PET/CT. FAPI tracer is also being developed further for use in diagnosis and treatment (theranostic).

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Published

2021-10-29

How to Cite

1.
Siripongsatian D, Promteangtrong C, Kunawudhi A, Kiatkittikul P, Chotipanich C. Fibroblast activation protein inhibitor (FAPI) PET/CT and PET/MRI: novel tracer for molecular imaging in oncology. J Chulabhorn Royal Acad [Internet]. 2021 Oct. 29 [cited 2024 Nov. 22];3(4):213-29. Available from: https://he02.tci-thaijo.org/index.php/jcra/article/view/251748

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Academic Articles