Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2024
Cardiovascular positron emission tomography imaging of fibroblast activation: A review of the current literature.
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Loganath Krithika, Craig Neil, Barton Anna, Joshi Shruti, Anagnostopoulos Constantinos, Erba Paola Anna, Glaudemans Andor W J M, Saraste Antti, Bucerius Jan, Lubberink Mark, Gheysens Olivier, Buechel Ronny R, Habib Gilbert, Gaemperli Oliver, Gimelli Alessia, Hyafil Fabien, Newby David E, Slart Riemer H J A, Dweck Marc R
Аннотация
Fibrosis is one of the key healing responses to injury, especially within the heart, where it helps to maintain structural integrity following acute insults such as myocardial infarction. However, if it becomes dysregulated, then fibrosis can become maladaptive, leading to adverse remodelling, impaired cardiac function and heart failure. Fibroblast activation protein is exclusively expressed by activated fibroblasts, the key effector cells of fibrogenesis, and has a unique extracellular domain that is an ideal ligand for novel molecular imaging probes. Fibroblast activation protein inhibitor (FAPI) radiotracers have been developed for positron emission tomography (PET) imaging, demonstrating high selectivity for activated fibroblasts across a range of different pathologies and disparate organ systems. In this review, we will summarise the role of fibroblast activation protein in cardiovascular disease and how FAPI radiotracers might improve the assessment and treatment of patients with cardiovascular diseases.