Article
Biochemistry & Molecular Biology
Laura Gilardi, Lighea Simona Airo Farulla, Emre Demirci, Ilaria Clerici, Emanuela Omodeo Sale, Francesco Ceci
Summary: The tumor microenvironment (TME) is a complex system that promotes tumorigenesis, with cancer-associated fibroblasts (CAFs) playing a key role. Inhibitors targeting the fibroblast activation protein (FAP) have shown promise for molecular imaging and radio-ligand therapy, particularly in low FDG-avid tumors and unfavorable regions. However, more research is needed to determine the efficacy of this pan-tumoral approach.
Article
Radiology, Nuclear Medicine & Medical Imaging
Katharina Dendl, Stefan A. Koerber, Rebecca Finck, Kgomotso M. G. Mokoala, Fabian Staudinger, Lisa Schillings, Ulrike Heger, Manuel Roehrich, Clemens Kratochwil, Mike Sathekge, Dirk Jaeger, Juergen Debus, Uwe Haberkorn, Frederik L. Giesel
Summary: Ga-68-FAPI-PET/CT demonstrates high tracer uptake for staging and follow-up of gynecological tumors, with sharp contrasts in primary and metastatic lesions and higher TBRs than F-18-FDG-PET/CT. The presence or absence of the menstrual cycle seems to correlate with FAPI accumulation in the normal endometrium and breast.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Kailin Qiao, Xueting Qin, Shuai Fu, Jiazhong Ren, Jing Jia, Xinying Hu, Yuanyuan Tao, Shuanghu Yuan, Yuchun Wei
Summary: The uptake of [F-18]AlF-NOTA-FAPI-04 and [F-18]FDG imaging tracers varies in malignant and inflammatory lung lesions, with lower uptake observed in inflammatory lesions. This difference in uptake can be valuable for distinguishing between malignancy and various inflammatory findings.
EUROPEAN RADIOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Rodney J. Hicks, Peter J. Roselt, Kumarswamy G. Kallur, Richard W. Tothill, Linda Mileshkin
Summary: For over 40 years, F-18-FDG has been the dominant PET tracer in various fields such as neurology and cardiology, particularly in oncology. While other tracers are gradually gaining ground, none have been able to realistically compete with F-18-FDG for evaluating a broad spectrum of malignancies.
JOURNAL OF NUCLEAR MEDICINE
(2021)
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Wei Liu, Xiao Yang, Liming Chen, Yue Chen, Tingting Xu
Summary: A 28-year-old woman presented with a 2-month history of chest wall swelling and pain. Chest CT revealed an irregular soft tissue mass in the chest wall and mediastinum. F-18-FDG PET/CT showed significant FDG uptake in the mass. Subsequently, the patient participated in a Ga-68-DOTA-FAPI-04 PET/CT tumor clinical trial, which also showed elevated tracer uptake in the mass. Biopsy confirmed a diagnosis of myeloid sarcoma.
CLINICAL NUCLEAR MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Chunhui Wu, Xinhua Zhang, Yu Zeng, Renbo Wu, Li Ding, Yanzhe Xia, Zhifeng Chen, Xiangsong Zhang, Xiaoyan Wang
Summary: FAPI PET/CT showed superior imaging performance in detecting R/M GISTs, especially for liver metastases. The uptake of FAPI reflected the level of FAP expression and was independent of tumor size, degree of enhancement, gene mutation type, and targeted therapy.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2022)
Article
Oncology
Hao Wang, Wenwei Zhu, Shuhua Ren, Yanyan Kong, Qi Huang, Jun Zhao, Yihui Guan, Huliang Jia, Jinhong Chen, Lu Lu, Fang Xie, Lunxiu Qin
Summary: Ga-68-FAPI-04 PET/CT is more sensitive than F-18-FDG PET/CT in detecting HCC lesions, and Ga-68-FAPI-04 uptake is mainly correlated with tumor size.
FRONTIERS IN ONCOLOGY
(2021)
Article
Oncology
Xinfeng Lin, Yingjie Li, Shuailiang Wang, Yan Zhang, Xuetao Chen, Maomao Wei, Hua Zhu, Aiwen Wu, Zhi Yang, Xuejuan Wang
Summary: This study compared the diagnostic performance of [Ga-68]Ga-FAPI-04 PET/CT and [F-18]F-FDG PET/CT in primary and metastatic colorectal cancer lesions, and found that [Ga-68]Ga-FAPI-04 showed potential as a novel PET/CT tracer. The use of this tracer improved the staging of colorectal cancer and led to optimization or adjustment of treatment decisions.
FRONTIERS IN ONCOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Xuetao Chen, Shuailiang Wang, Yumei Lai, Guochang Wang, Maomao Wei, Xiao Jin, Jin Ding, Yan Zhang, Yunfei Shi, Feng Wang, Hua Zhu, Zhi Yang, Xuejuan Wang
Summary: The study aimed to compare the diagnostic performance of Ga-68-labeled fibroblast activation protein (FAP) inhibitor (FAPI) and F-18-labeled FDG PET/CT in diagnosing lymphomas and investigate the influence of FAP and glycolytic markers on tracer uptake. The results showed that F-18-FDG PET/CT had a higher staging accuracy and detected more lymph node and extranodal lesions than 68Ga-FAPI PET/CT. Ga-68-FAPI PET/CT was inferior in diagnosing lymphomas with low FAP expression, but it could help reveal the molecular profile of lymphomas.
JOURNAL OF NUCLEAR MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Yaping Luo, Qingqing Pan, Huaxia Yang, Linyi Peng, Wen Zhang, Fang Li
Summary: Ga-68-FAPI shows promising potential as an imaging agent for assessing IgG4-RD, with higher detection rates in involved organs compared to F-18-FDG PET/CT, especially in the pancreas, bile duct/liver, and lacrimal gland. This suggests its potential utility in improving the evaluation of IgG4-related disease.
JOURNAL OF NUCLEAR MEDICINE
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Chunxia Qin, Fuqiang Shao, Yongkang Gai, Qingyao Liu, Weiwei Ruan, Fang Liu, Fan Hu, Xiaoli Lan
Summary: The study evaluated the performance of Ga-68-FAPI PET/MR in diagnosing primary tumors and metastatic lesions in patients with gastric carcinomas, comparing it with F-18-FDG PET/CT. The results showed that Ga-68-FAPI PET/MR outperformed F-18-FDG PET/CT in detecting primary tumors and most metastatic lesions, suggesting its potential as a replacement for F-18-FDG PET/CT.
JOURNAL OF NUCLEAR MEDICINE
(2022)
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Caner Civan, Emine Goknur Isik, Seyfullah Karadogan, Yasemin Sanli, Serkan Kuyumcu
Summary: This article presents a case of a 62-year-old male with progressive left-sided papillary renal cell carcinoma. Ga-68-FAPI-04 and F-18-FDG PET/CT imaging revealed variable FAP expression in all metastatic lesions, including lymph nodes, bone, and thyroid. This case highlights the potential of FAP-targeted imaging for diagnostic and theranostic use in papillary renal cell carcinoma.
CLINICAL NUCLEAR MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Yuchun Wei, Jinsong Zheng, Li Ma, Xiaoli Liu, Shengnan Xu, Shijie Wang, Jinli Pei, Kai Cheng, Shuanghu Yuan, Jinming Yu
Summary: The pilot study developed a new tracer, [F-18]AlF-NOTA-FAPI-04, with high specificity for imaging FAP in various types of cancers. The tracer showed high intratumoral uptake and fast body clearance, providing high contrast images in tumors and better identification of metastatic lesions in patients with advanced lung cancer compared to [F-18]FDG.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2022)
Review
Oncology
Yanzhao Dong, Haiying Zhou, Ahmad Alhaskawi, Zewei Wang, Jingtian Lai, Chengjun Yao, Zhenfeng Liu, Sohaib Hasan Abdullah Ezzi, Vishnu Goutham Kota, Mohamed Hasan Abdulla Hasan Abdulla, Hui Lu
Summary: Fibroblast activation protein is a newly discovered biomarker in various tumor types, and nuclear medicine physicians can use inhibitors ligated with radiopharmaceuticals to identify primary tumors, lymphatic spread, and distant metastases. This review summarizes the current application of this imaging method in many tumor types, comparing it to existing radiological diagnostic tools.
Review
Medicine, General & Internal
Kunal Ramesh Chandekar, Arun Prashanth, Sobhan Vinjamuri, Rakesh Kumar
Summary: Despite limitations in specificity and sensitivity, Positron Emission Tomography (PET) using [F-18]Fluorodeoxyglucose (FDG) has revolutionized oncological imaging. Fibroblast activation protein (FAP), expressed by cancer-associated fibroblasts (CAFs), shows promise as a pan-cancer target. Radiolabeled FAP inhibitors (FAPI) have been developed for molecular imaging and theranostic applications, with encouraging preliminary data on FAPI PET/CT and ongoing clinical research. This review summarizes the literature on FAPI PET/CT imaging, focusing on diagnostic applications, comparison with FDG, pitfalls, and future directions.
Article
Endocrinology & Metabolism
Kim Magaly Pabst, Robert Seifert, Nader Hirmas, Martina Broecker-Preuss, Manuel Weber, Wolfgang Peter Fendler, Timo Bartel, Sarah Theurer, Ken Herrmann, Rainer Goerges
Summary: The aim of this study was to investigate the predictive power of single stimulated thyroglobulin (s-Tg) and single highly sensitive measured, unstimulated thyroglobulin (u-hsTg) measurements for recurrence-free survival (RFS) in long-term follow-up of patients with differentiated thyroid cancer (DTC). Results showed that both s-Tg and u-hsTg had a significant predictive power for RFS, with u-hsTg and patient age being significantly associated with tumor recurrence.
ENDOCRINE CONNECTIONS
(2023)
Article
Medicine, General & Internal
Mankgopo Kgatle, Rajesh Das, Ismaheel Lawal, Tebatso Boshomane, Kgomotso Mokoala, Cattleya Gaspar, Lydia Mbokazi, Nonhlanhla Nkambule, Veronique Gow, Honest Ndlovu, Yonwaba Mzizi, Joseph Chalwe, Jeaneth Diphofa, Dinah Mokobodi, Nobuhle Gxekwa, Lusanda Zongo, Tinashe Maphosa, Mariza Vorster, Sheynaz Bassa, Amouda Venkatesan, Richard Khanyile, Yunus Munga, Thomas Ebenhan, Jan Rijn Zeevaart, Mike Sathekge
Summary: The study aimed to estimate the SARS-CoV-2 seroprevalence among solid tumour patients attending a hospital for cancer diagnosis and treatment. Using COVID-19 IgG/IgM rapid tests, the researchers found a seroprevalence of 33.2% among asymptomatic patients with solid tumours. The seroprevalence increased significantly from the second to the fourth waves, with a high percentage of asymptomatic cases. Patients with breast, gynaecologic, and prostate cancers showed higher SARS-CoV-2 seropositivity.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Ida Sonni, Alan Dal Pra, Dylan P. O'Connell, Zachary Ells, Matthias Benz, Kathleen Nguyen, Stephanie M. Yoon, Jie Deng, Clayton Smith, Tristan Grogan, Nickolas G. Nickols, Minsong Cao, Amar U. Kishan, Jeremie Calais
Summary: The aim of this study was to analyze the patterns of prostate bed recurrence in prostate cancer patients experiencing PSA persistence or biochemical recurrence after radical prostatectomy using 68Ga-PSMA-11 PET/CT in relation to the RTOG CTVs. The results suggest that 68Ga-PSMA PET can be a valuable tool for guiding SRT planning to improve treatment outcomes.
JOURNAL OF NUCLEAR MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Masatoshi Hotta, Andrei Gafita, Vishnu Murthy, Matthias R. Benz, Ida Sonni, Irene A. Burger, Matthias Eiber, Louise Emmett, Andrea Farolfi, Wolfgang P. Fendler, Manuel M. Weber, Michael S. Hofman, Thomas A. Hope, Clemens Kratochwil, Johannes Czernin, Jeremie Calais
JOURNAL OF NUCLEAR MEDICINE
(2023)
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Vishnu Murthy, Martin Allen-Auerbach, Richard Lam, Dawn Owen, Johannes Czernin, Jeremie Calais
JOURNAL OF NUCLEAR MEDICINE
(2023)
Review
Pharmacology & Pharmacy
Sipho Mdanda, Lindokuhle M. Ngema, Amanda Mdlophane, Mike M. Sathekge, Jan Rijn Zeevaart
Summary: The radioisotope Ac-225 has great potential for use in radionuclide therapy, but its multiple daughter nuclides can cause toxicity in unintended organs. Nanotechnology offers strategies to keep the Ac-225 daughters from escaping the targeted site. This review explores the advancements and potential applications of targeted radionuclide therapy, specifically with Ac-225, and highlights the importance of using nanomaterials to improve therapeutic efficacy.
Article
Oncology
Kgomotso M. G. Mokoala, Ismaheel O. Lawal, Letjie C. Maserumule, Meshack Bida, Alex Maes, Honest Ndlovu, Janet Reed, Johncy Mahapane, Cindy Davis, Christophe van de Wiele, Gbenga Popoola, Frederik L. Giesel, Mariza Vorster, Mike M. Sathekge
Summary: Hypoxia is common in cervical cancer and upregulates the presence and function of CAFs. HIF-1a plays a key role in the physiological response to hypoxia. [Ga-68]Ga-FAPI PET can be used as an indirect tracer for mapping hypoxia by correlating image findings to HIF-1a expression. FAPI-TV is a better predictor of metastatic disease than SUVmax.
Article
Oncology
Karim Fizazi, Ken Herrmann, Bernd J. Krause, Kambiz Rahbar, Kim N. Chi, Michael J. Morris, Oliver Sartor, Scott T. Tagawa, Ayse T. Kendi, Nicholas Vogelzang, Jeremie Calais, James Nagarajah, Xiao X. Wei, Vadim S. Koshkin, Jean-Mathieu Beauregard, Brian Chang, Ray Ghouse, Michelle DeSilvio, Richard A. Messmann, Johann de Bono
Summary: In the VISION study, lutetium-177 (177Lu) Lu-PSMA-617 improved radiographic progression-free survival and overall survival in patients with metastatic castration-resistant prostate cancer. Additional results showed improvements in health-related quality of life, pain, and symptomatic skeletal events.
Meeting Abstract
Urology & Nephrology
Adam Weiner, Eric Li, J. J. Zhang, Elai Davicioni, Edward Schaeffer, Ashley Ross, Luca Valle, Paul Boutros, Jeremie Calais, Amar Kishan, Robert Reiter
JOURNAL OF UROLOGY
(2023)
Meeting Abstract
Urology & Nephrology
David Kuppermann, Jeremie Calais, Leonard Marks
JOURNAL OF UROLOGY
(2023)
Meeting Abstract
Urology & Nephrology
David Kuppermann, Jeremie Calais, Elizabeth Tran, Samantha Gonzalez, Merdie Delfin, Leonard Marks
JOURNAL OF UROLOGY
(2023)
Meeting Abstract
Radiology, Nuclear Medicine & Medical Imaging
A. Gafita, R. Alano, M. Rettig, J. Shen, W. Armstrong, T. R. Grogan, S. Liu, M. R. Benz, J. Czernin, J. Calais
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2023)
Meeting Abstract
Radiology, Nuclear Medicine & Medical Imaging
P. Jeanjean, S. Kwock, T. Cloughesy, J. Calais, J. Czernin, G. Carlucci, D. Nathanson, C. Mona, E. Besserer-Offroy
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2023)
Meeting Abstract
Oncology
Lisa M. Gudenkauf, Melody Chavez, Melinda Maconi, Carley Geiss, Ameen Seyedroudbari, Pan Thin, Aasha Hoogland, Kathleen Nguyen, Laura B. Oswald, Heather S. L. Jim, Ghassan El-Haddad, Wolfgang Peter Fendler, Ken Herrmann, David Cella, Johannes Czernin, Michael S. Hofman, Adam P. Dicker, Jeremie Calais, Scott T. Tagawa, Brian D. Gonzalez
JOURNAL OF CLINICAL ONCOLOGY
(2023)
Meeting Abstract
Oncology
Luca Faustino Valle, Jeremie Calais, Leonard S. Marks, Steven Raman, Robert Evan Reiter, Matthew Rettig, John Shen, Johannes Czernin, Adam B. Weiner, Michael L. Steinberg, Nicholas George Nickols, Albert J. Chang, Paul Christopher Boutros, Huihui Ye, Masatoshi Hotta, Rong Rong Huang, Amar Upadhyaya Kishan
JOURNAL OF CLINICAL ONCOLOGY
(2023)