The parameters of [18F]AlF-NOTA-FAPI-04 PET/CT had the excellent performance for predicting pathologic TRG after NCT in LAPDAC. FTV and TLF were independent postoperative prognostic factors for RFS and OS for LAPDAC.
Limitations include heterogeneity in FAP expression cutoffs and definitions. Future research should focus on delineating the precise roles and clinical implications of FAP in GI cancers.
The molar dose of FAPI in [68Ga]Ga/[177Lu]Lu-FAPI had a substantial impact on FAP-targeted imaging and therapy in mouse syngeneic tumor models. To acquire enhanced reliability and reproducibility in preclinical situation, it is critical to carefully consider the molar dose of the radiotracer when applying radiolabeled FAP ligands to FAP-targeted imaging and radiotherapy.
FAPI PET presents promising outcomes in detecting metastases in recurrent MTC patients. Although its diagnostic performance matches SSTR on a per-patient basis, FAPI PET exhibits superior sensitivity and accuracy in lesion-based analyses, notably for liver and bone metastases.
FAPI PET presents promising outcomes in detecting metastases in recurrent MTC patients. Although its diagnostic performance matches SSTR on a per-patient basis, FAPI PET exhibits superior sensitivity and accuracy in lesion-based analyses, notably for liver and bone metastases.
[64Cu]2 and [68Ga]3 exhibited favorable in vivo pharmacokinetics compared to those of [18F]1. Notably, [68Ga]3 showed lower normal organ uptake than did the other two radioligands, and moreover, it exhibited higher, more prolonged tumor uptake than its monomeric counterpart [68Ga]Ga-FAPI-04 over a 3 h period, suggesting its potential as a promising FAP-specific theranostic radioligand.
The interaction between FAP and FAP-targeted tracers differs between models, indicating the need for appropriate model selection and that comparing results across studies using different models is difficult.
FAP is expressed in the stroma of a high proportion (93%) of primary CCA independent of patient clinical or tumor pathology features. As such, these data provide the tissue basis for systematically evaluating FAP as a theranostic target across a broad range of CCA subtypes.
This study highlights the effects of FAP expression on survival of patients with CRC, its interaction with TILs, and relevant signaling pathways, and underscores potential immunotherapeutic targets for future investigation.
1 year ago
Journal • IO biomarker
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CD8 (cluster of differentiation 8) • CXCL12 (C-X-C Motif Chemokine Ligand 12) • CCL11 (C-C Motif Chemokine Ligand 11) • FAP (Fibroblast activation protein, alpha) • COL1A1 (Collagen Type I Alpha 1 Chain) • COL11A1 (Collagen Type XI Alpha 1 Chain)