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Al-Ibraheem A, Allouzi S, Abdlkadir AS, Mikhail-Lette M, Al-Rabi K, Ma'koseh M, Knoll P, Abdelrhman Z, Shahin O, Juweid ME, Paez D, Lopci E. PET/CT in leukemia: utility and future directions. Nucl Med Commun 2024; 45:550-563. [PMID: 38646840 DOI: 10.1097/mnm.0000000000001846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
2-Deoxy-2-[ 18 F]fluoro- d -glucose PET/computed tomography ([ 18 F]FDG PET/CT) has proven to be a sensitive method for the detection and evaluation of hematologic malignancies, especially lymphoma. The increasing incidence and mortality rates of leukemia have raised significant concerns. Through the utilization of whole-body imaging, [ 18 F]FDG PET/CT provides a thorough assessment of the entire bone marrow, complementing the limited insights provided by biopsy samples. In this regard, [ 18 F]FDG PET/CT has the ability to assess diverse types of leukemia The utilization of [ 18 F]FDG PET/CT has been found to be effective in evaluating leukemia spread beyond the bone marrow, tracking disease relapse, identifying Richter's transformation, and assessing the inflammatory activity associated with acute graft versus host disease. However, its role in various clinical scenarios in leukemia remains unacknowledged. Despite their less common use, some novel PET/CT radiotracers are being researched for potential use in specific scenarios in leukemia patients. Therefore, the objectives of this review are to provide a thorough assessment of the current applications of [ 18 F]FDG PET/CT in the staging and monitoring of leukemia patients, as well as the potential for an expanding role of PET/CT in leukemia patients.
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Affiliation(s)
- Akram Al-Ibraheem
- Department of Nuclear Medicine and PET/CT, King Hussein Cancer Center (KHCC),
- Department of Radiology and Nuclear Medicine, School of Medicine, University of Jordan, Amman, Jordan,
| | - Sudqi Allouzi
- Department of Nuclear Medicine and PET/CT, King Hussein Cancer Center (KHCC),
| | | | - Miriam Mikhail-Lette
- Nuclear Medicine and Diagnostic Imaging Section, Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria,
| | - Kamal Al-Rabi
- Department of Medical Oncology, King Hussein Cancer Center (KHCC), Amman, Jordan,
| | - Mohammad Ma'koseh
- Department of Medical Oncology, King Hussein Cancer Center (KHCC), Amman, Jordan,
| | - Peter Knoll
- Dosimetry and Medical Radiation Physics Section, Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria,
| | - Zaid Abdelrhman
- Department of Medical Oncology, King Hussein Cancer Center (KHCC), Amman, Jordan,
| | - Omar Shahin
- Department of Medical Oncology, King Hussein Cancer Center (KHCC), Amman, Jordan,
| | - Malik E Juweid
- Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan and
| | - Diana Paez
- Nuclear Medicine and Diagnostic Imaging Section, Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria,
| | - Egesta Lopci
- Department of Nuclear Medicine, IRCCS - Humanitas Clinical and Research Hospital, Rozzano (MI), Italy
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2
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Yang T, Shi D, Lin Q, Shen H, Tan H, Liu Y, Shi H, Cheng D. Synthesis, Screening, and Evaluation of Theranostic Molecular CPCR4-Based Probe Targeting CXCR4. Mol Pharm 2024; 21:2415-2424. [PMID: 38606663 DOI: 10.1021/acs.molpharmaceut.3c01221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Chemokines and chemokine receptors are indispensable to play a key role in the development of malignant tumors. As one of the most widely expressed chemokine receptors, chemokine (C-X-C motif) receptor 4 (CXCR4) has been a popular research focus. In most tumors, CXCR4 expression is significantly upregulated. Moreover, integrated nuclide diagnosis and therapy targeting CXCR4 show great potential. [68Ga]Ga-pentixafor, a radioligand targeting CXCR4, exhibits a strong affinity for CXCR4 both in vivo and in vitro. However, [177Lu]Lu-pentixather, the therapeutic companion of [68Ga]Ga-pentixafor, requires significant refinement to mitigate its pronounced hepatic biodistribution. The objective of this study was to synthesize theranostic molecular tracers with superior CXCR4 targeting functions. The Daudi cell line, which highly expressed CXCR4, and the MM.1S cell line, which weakly expressed CXCR4, were used in this study. Based on the pharmacophore cyclo (-d-Tyr-n-me-d-Orn-l-Arg-L-2-NAL-Gly-) (CPCR4) of pentixafor, six tracers were synthesized: [124I]I-1 ([124I]I-CPCR4), [99mTc]Tc-2 ([99mTc]Tc-HYNIC-CPCR4), [124I]I-3 ([124I]I-pentixafor), [18F]AlF-4 ([18F]AlF-NETA-CPCR4), [99mTc]Tc-5 ([99mTc]Tc-MAG3-CPCR4) and [124I]I-6 ([124I]I-pentixafor-Ga) and their radiochemical purities were all higher than 95%. After positron emission tomography (PET)/single-photon emission computed tomography (SPECT) imaging, the [124I]I-6 group exhibited the best target-nontarget ratio. At the same time, comparing the [68Ga]Ga-pentixafor group with the [124I]I-6 group, we found that the [124I]I-6 group had a better target-nontarget ratio and lower uptake in nontarget organs. Therefore, compound 6 was selected for therapeutic radionuclide (131I) labeling, and the tumor-bearing animal models were treated with [131I]I-6. The volume of the tumor site was significantly reduced in the treatment group compared with the control group, and no significant side effects were found. [124I]I-6 and [131I]I-6 showed excellent affinity for targeting CXCR4, and they showed great potential for the integrated diagnosis and treatment of tumors with high CXCR4 expression.
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Affiliation(s)
- Tingting Yang
- Shanghai Institute of Medical Imaging, Shanghai 200032, China
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Dai Shi
- Shanghai Institute of Medical Imaging, Shanghai 200032, China
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qingyu Lin
- Shanghai Institute of Medical Imaging, Shanghai 200032, China
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hua Shen
- Department of Applied Chemistry, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Hui Tan
- Shanghai Institute of Medical Imaging, Shanghai 200032, China
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yuxia Liu
- Department of Applied Chemistry, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Hongcheng Shi
- Shanghai Institute of Medical Imaging, Shanghai 200032, China
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Dengfeng Cheng
- Shanghai Institute of Medical Imaging, Shanghai 200032, China
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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3
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Lawal IO, Abubakar SO, Ndlovu H, Mokoala KMG, More SS, Sathekge MM. Advances in Radioligand Theranostics in Oncology. Mol Diagn Ther 2024; 28:265-289. [PMID: 38555542 DOI: 10.1007/s40291-024-00702-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2024] [Indexed: 04/02/2024]
Abstract
Theranostics with radioligands (radiotheranostics) has played a pivotal role in oncology. Radiotheranostics explores the molecular targets expressed on tumor cells to target them for imaging and therapy. In this way, radiotheranostics entails non-invasive demonstration of the in vivo expression of a molecular target of interest through imaging followed by the administration of therapeutic radioligand targeting the tumor-expressed molecular target. Therefore, radiotheranostics ensures that only patients with a high likelihood of response are treated with a particular radiotheranostic agent, ensuring the delivery of personalized care to cancer patients. Within the last decades, a couple of radiotheranostics agents, including Lutetium-177 DOTATATE (177Lu-DOTATATE) and Lutetium-177 prostate-specific membrane antigen (177Lu-PSMA), were shown to prolong the survival of cancer patients compared to the current standard of care leading to the regulatory approval of these agents for routine use in oncology care. This recent string of successful approvals has broadened the interest in the development of different radiotheranostic agents and their investigation for clinical translation. In this work, we present an updated appraisal of the literature, reviewing the recent advances in the use of established radiotheranostic agents such as radioiodine for differentiated thyroid carcinoma and Iodine-131-labeled meta-iodobenzylguanidine therapy of tumors of the sympathoadrenal axis as well as the recently approved 177Lu-DOTATATE and 177Lu-PSMA for differentiated neuroendocrine tumors and advanced prostate cancer, respectively. We also discuss the radiotheranostic agents that have been comprehensively characterized in preclinical studies and have shown some clinical evidence supporting their safety and efficacy, especially those targeting fibroblast activation protein (FAP) and chemokine receptor 4 (CXCR4) and those still being investigated in preclinical studies such as those targeting poly (ADP-ribose) polymerase (PARP) and epidermal growth factor receptor 2.
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Affiliation(s)
- Ismaheel O Lawal
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology and Imaging Sciences, Emory University, 1364 Clifton Road, NE, Atlanta, GA, 30322, USA.
- Department of Nuclear Medicine, University of Pretoria, Pretoria, 0001, South Africa.
| | - Sofiullah O Abubakar
- Department of Radiology and Nuclear Medicine, Sultan Qaboos Comprehensive Cancer Care and Research Center, Muscat, Oman
| | - Honest Ndlovu
- Department of Nuclear Medicine, University of Pretoria, Pretoria, 0001, South Africa
- Nuclear Medicine Research Infrastructure (NuMeRI), Steve Biko Academic Hospital, Pretoria, 0001, South Africa
| | - Kgomotso M G Mokoala
- Department of Nuclear Medicine, University of Pretoria, Pretoria, 0001, South Africa
- Nuclear Medicine Research Infrastructure (NuMeRI), Steve Biko Academic Hospital, Pretoria, 0001, South Africa
| | - Stuart S More
- Department of Nuclear Medicine, University of Pretoria, Pretoria, 0001, South Africa
- Division of Nuclear Medicine, Department of Radiation Medicine, University of Cape Town, Cape Town, 7700, South Africa
| | - Mike M Sathekge
- Department of Nuclear Medicine, University of Pretoria, Pretoria, 0001, South Africa
- Nuclear Medicine Research Infrastructure (NuMeRI), Steve Biko Academic Hospital, Pretoria, 0001, South Africa
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Bauckneht M, Filippi L. Pentixather: paving the way for radioligand therapy in oncohematology. Expert Rev Anticancer Ther 2024; 24:205-209. [PMID: 38593347 DOI: 10.1080/14737140.2024.2341728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 04/08/2024] [Indexed: 04/11/2024]
Affiliation(s)
- Matteo Bauckneht
- Nuclear Medicine, IRCCS Ospedale Policlinico San Martino, Genova, Italy
- Department of Health Sciences (DISSAL), University of Genova, Genova, Italy
| | - Luca Filippi
- Nuclear Medicine Unit, Department of Oncohaematology, Fondazione PTV Policlinico Tor Vergata University Hospital, Rome, Italy
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Sun S, Yang Q, Jiang D, Zhang Y. Nanobiotechnology augmented cancer stem cell guided management of cancer: liquid-biopsy, imaging, and treatment. J Nanobiotechnology 2024; 22:176. [PMID: 38609981 PMCID: PMC11015566 DOI: 10.1186/s12951-024-02432-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Cancer stem cells (CSCs) represent both a key driving force and therapeutic target of tumoral carcinogenesis, tumor evolution, progression, and recurrence. CSC-guided tumor diagnosis, treatment, and surveillance are strategically significant in improving cancer patients' overall survival. Due to the heterogeneity and plasticity of CSCs, high sensitivity, specificity, and outstanding targeting are demanded for CSC detection and targeting. Nanobiotechnologies, including biosensors, nano-probes, contrast enhancers, and drug delivery systems, share identical features required. Implementing these techniques may facilitate the overall performance of CSC detection and targeting. In this review, we focus on some of the most recent advances in how nanobiotechnologies leverage the characteristics of CSC to optimize cancer diagnosis and treatment in liquid biopsy, clinical imaging, and CSC-guided nano-treatment. Specifically, how nanobiotechnologies leverage the attributes of CSC to maximize the detection of circulating tumor DNA, circulating tumor cells, and exosomes, to improve positron emission computed tomography and magnetic resonance imaging, and to enhance the therapeutic effects of cytotoxic therapy, photodynamic therapy, immunotherapy therapy, and radioimmunotherapy are reviewed.
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Affiliation(s)
- Si Sun
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qiang Yang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Dawei Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Key Laboratory of Molecular Imaging, Wuhan, 430022, China.
- Key Laboratory of Biological Targeted Therapy, the Ministry of Education, Wuhan, 430022, China.
| | - Yuan Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Li M, Robles-Planells C, Liu D, Graves SA, Vasquez-Martinez G, Mayoral-Andrade G, Lee D, Rastogi P, Marks BM, Sagastume EA, Weiss RM, Linn-Peirano SC, Johnson FL, Schultz MK, Zepeda-Orozco D. Pre-clinical evaluation of biomarkers for the early detection of nephrotoxicity following alpha-particle radioligand therapy. Eur J Nucl Med Mol Imaging 2024; 51:1395-1408. [PMID: 38095674 PMCID: PMC10957612 DOI: 10.1007/s00259-023-06559-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 12/01/2023] [Indexed: 12/26/2023]
Abstract
PURPOSE Cancer treatment with alpha-emitter-based radioligand therapies (α-RLTs) demonstrates promising tumor responses. Radiolabeled peptides are filtered through glomeruli, followed by potential reabsorption of a fraction by proximal tubules, which may cause acute kidney injury (AKI) and chronic kidney disease (CKD). Because tubular cells are considered the primary site of radiopeptides' renal reabsorption and potential injury, the current use of kidney biomarkers of glomerular functional loss limits the evaluation of possible nephrotoxicity and its early detection. This study aimed to investigate whether urinary secretion of tubular injury biomarkers could be used as an additional non-invasive sensitive diagnostic tool to identify unrecognizable tubular damage and risk of long-term α-RLT nephrotoxicity. METHODS A bifunctional cyclic peptide, melanocortin 1 ligand (MC1L), labeled with [203Pb]Pb-MC1L, was used for [212Pb]Pb-MC1L biodistribution and absorbed dose measurements in CD-1 Elite mice. Mice were treated with [212Pb]Pb-MC1L in a dose-escalation study up to levels of radioactivity intended to induce kidney injury. The approach enabled prospective kidney functional and injury biomarker evaluation and late kidney histological analysis to validate these biomarkers. RESULTS Biodistribution analysis identified [212Pb]Pb-MC1L reabsorption in kidneys with a dose deposition of 2.8, 8.9, and 20 Gy for 0.9, 3.0, and 6.7 MBq injected [212Pb]Pb-MC1L doses, respectively. As expected, mice receiving 6.7 MBq had significant weight loss and CKD evidence based on serum creatinine, cystatin C, and kidney histological alterations 28 weeks after treatment. A dose-dependent urinary neutrophil gelatinase-associated lipocalin (NGAL, tubular injury biomarker) urinary excretion the day after [212Pb]Pb-MC1L treatment highly correlated with the severity of late tubulointerstitial injury and histological findings. CONCLUSION Urine NGAL secretion could be a potential early diagnostic tool to identify unrecognized tubular damage and predict long-term α-RLT-related nephrotoxicity.
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Affiliation(s)
- Mengshi Li
- Viewpoint Molecular Targeting, Inc. Dba Perspective Therapeutics, Coralville, IA, USA
| | - Claudia Robles-Planells
- Kidney and Urinary Tract Center, Abigail Wexner Research Institute at Nationwide Children's, Columbus, OH, USA
| | - Dijie Liu
- Viewpoint Molecular Targeting, Inc. Dba Perspective Therapeutics, Coralville, IA, USA
| | - Stephen A Graves
- Department of Radiology, The University of Iowa, Iowa City, IA, USA
| | - Gabriela Vasquez-Martinez
- Kidney and Urinary Tract Center, Abigail Wexner Research Institute at Nationwide Children's, Columbus, OH, USA
| | - Gabriel Mayoral-Andrade
- Kidney and Urinary Tract Center, Abigail Wexner Research Institute at Nationwide Children's, Columbus, OH, USA
| | - Dongyoul Lee
- Department of Physics and Chemistry, Korea Military Academy, Seoul, Republic of Korea
| | - Prerna Rastogi
- Department of Pathology, The University of Iowa, Iowa City, IA, USA
| | - Brenna M Marks
- Viewpoint Molecular Targeting, Inc. Dba Perspective Therapeutics, Coralville, IA, USA
| | - Edwin A Sagastume
- Viewpoint Molecular Targeting, Inc. Dba Perspective Therapeutics, Coralville, IA, USA
| | - Robert M Weiss
- Department of Internal Medicine, The University of Iowa, Iowa City, IA, USA
| | - Sarah C Linn-Peirano
- Kidney and Urinary Tract Center, Abigail Wexner Research Institute at Nationwide Children's, Columbus, OH, USA
- Department of Veterinary Biosciences, The Ohio State University College of Veterinary Medicine Columbus, Columbus, OH, USA
| | - Frances L Johnson
- Viewpoint Molecular Targeting, Inc. Dba Perspective Therapeutics, Coralville, IA, USA
| | - Michael K Schultz
- Viewpoint Molecular Targeting, Inc. Dba Perspective Therapeutics, Coralville, IA, USA.
- Department of Radiology, The University of Iowa, Iowa City, IA, USA.
- Department of Radiation Oncology, Free Radical, and Radiation Biology Program, The University of Iowa, Iowa City, IA, USA.
| | - Diana Zepeda-Orozco
- Kidney and Urinary Tract Center, Abigail Wexner Research Institute at Nationwide Children's, Columbus, OH, USA.
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, USA.
- Division of Nephrology and Hypertension, Nationwide Children's Hospital, Columbus, OH, USA.
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Holzleitner N, Fischer S, Maniyankerikalam I, Beck R, Lapa C, Wester HJ, Günther T. Significant reduction of activity retention in the kidneys via optimized linker sequences in radiohybrid-based minigastrin analogs. EJNMMI Res 2024; 14:23. [PMID: 38429609 PMCID: PMC10907560 DOI: 10.1186/s13550-024-01087-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/26/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND We recently introduced radiohybrid (rh)-based minigastrin analogs e.g., DOTA-rhCCK-18 (DOTA-D-Dap(p-SiFA)-(D-γ-Glu)8-Ala-Tyr-Gly-Trp-Nle-Asp-Phe-NH2), that revealed substantially increased activity retention in the tumor. However, one major drawback of these first generation rh-based cholecystokinin-2 receptor (CCK-2R) ligands is their elevated activity levels in the kidneys, especially at later time points (24 h p.i.). Therefore, this study aimed to reduce kidney retention with regard to a therapeutic use via substitution of negatively charged D-glutamic acid moieties by hydrophilic uncharged polyethylene glycol (PEG) linkers of various length ((PEG)4 to (PEG)11). Furthermore, the influence of differently charged silicon-based fluoride acceptor (SiFA)-moieties (p-SiFA: neutral, SiFA-ipa: negatively charged, and SiFAlin: positively charged) on in vitro properties of minigastrin analogs was evaluated. Out of all compounds evaluated in vitro, the two most promising minigastrin analogs were further investigated in vivo. RESULTS CCK-2R affinity of most compounds evaluated was found to be in a range of 8-20 nM (by means of apparent IC50), while ligands containing a SiFA-ipa moiety displayed elevated IC50 values. Lipophilicity was noticeably lower for compounds containing a D-γ-glutamate (D-γ-Glu) moiety next to the D-Dap(SiFA) unit as compared to their counterparts lacking the additional negative charge. Within this study, combining the most favorable CCK-2R affinity and lipophilicity, [177/natLu]Lu-DOTA-rhCCK-70 (DOTA-D-Dap(p-SiFA)-D-γ-Glu-(PEG)7-D-γ-Glu-(PEG)3-Trp-(N-Me)Nle-Asp-1-Nal-NH2; IC50: 12.6 ± 2.0 nM; logD7.4: - 1.67 ± 0.08) and [177/natLu]Lu-DOTA-rhCCK-91 (DOTA-D-Dap(SiFAlin)-D-γ-Glu-(PEG)4-D-γ-Glu-(PEG)3-Trp-(N-Me)Nle-Asp-1-Nal-NH2; IC50: 8.6 ± 0.7 nM; logD7.4 = - 1.66 ± 0.07) were further evaluated in vivo. Biodistribution data of both compounds revealed significantly reduced (p < 0.0001) activity accumulation in the kidneys compared to [177Lu]Lu-DOTA-rhCCK-18 at 24 h p.i., leading to enhanced tumor-to-kidney ratios despite lower tumor uptake. However, overall tumor-to-background ratios of the novel compounds were lower than those of [177Lu]Lu-DOTA-rhCCK-18. CONCLUSION We could show that the reduction of negative charges within the linker section of radiohybrid-based minigastrin analogs led to decreased activity levels in the kidneys at 24 h p.i., while maintaining a good tumor uptake. Thus, favorable tumor-to-kidney ratios were accomplished in vivo. However, further optimization has to be done in order to improve tumor retention and general biodistribution profile.
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Affiliation(s)
- Nadine Holzleitner
- TUM School of Natural Sciences, Department of Chemistry, Chair of Pharmaceutical Radiochemistry, Technical University of Munich, Garching, Germany.
| | - Sebastian Fischer
- TUM School of Natural Sciences, Department of Chemistry, Chair of Pharmaceutical Radiochemistry, Technical University of Munich, Garching, Germany
| | - Isabel Maniyankerikalam
- TUM School of Natural Sciences, Department of Chemistry, Chair of Pharmaceutical Radiochemistry, Technical University of Munich, Garching, Germany
| | - Roswitha Beck
- TUM School of Natural Sciences, Department of Chemistry, Chair of Pharmaceutical Radiochemistry, Technical University of Munich, Garching, Germany
| | - Constantin Lapa
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
- Bavarian Cancer Research Center (BZKF), Bavaria, Germany
| | - Hans-Jürgen Wester
- TUM School of Natural Sciences, Department of Chemistry, Chair of Pharmaceutical Radiochemistry, Technical University of Munich, Garching, Germany
| | - Thomas Günther
- TUM School of Natural Sciences, Department of Chemistry, Chair of Pharmaceutical Radiochemistry, Technical University of Munich, Garching, Germany.
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Zhang T, Lei H, Chen X, Dou Z, Yu B, Su W, Wang W, Jin X, Katsube T, Wang B, Zhang H, Li Q, Di C. Carrier systems of radiopharmaceuticals and the application in cancer therapy. Cell Death Discov 2024; 10:16. [PMID: 38195680 PMCID: PMC10776600 DOI: 10.1038/s41420-023-01778-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/04/2023] [Accepted: 12/13/2023] [Indexed: 01/11/2024] Open
Abstract
Radiopharmaceuticals play a vital role in cancer therapy. The carrier of radiopharmaceuticals can precisely locate and guide radionuclides to the target, where radionuclides kill surrounding tumor cells. Effective application of radiopharmaceuticals depends on the selection of an appropriate carrier. Herein, different types of carriers of radiopharmaceuticals and the characteristics are briefly described. Subsequently, we review radiolabeled monoclonal antibodies (mAbs) and their derivatives, and novel strategies of radiolabeled mAbs and their derivatives in the treatment of lymphoma and colorectal cancer. Furthermore, this review outlines radiolabeled peptides, and novel strategies of radiolabeled peptides in the treatment of neuroendocrine neoplasms, prostate cancer, and gliomas. The emphasis is given to heterodimers, bicyclic peptides, and peptide-modified nanoparticles. Last, the latest developments and applications of radiolabeled nucleic acids and small molecules in cancer therapy are discussed. Thus, this review will contribute to a better understanding of the carrier of radiopharmaceuticals and the application in cancer therapy.
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Affiliation(s)
- Taotao Zhang
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Huiwen Lei
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Xiaohua Chen
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516029, China
| | - Zhihui Dou
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Boyi Yu
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Wei Su
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Wei Wang
- College of Life Science, Northwest Normal University, Lanzhou, 730000, China
| | - Xiaodong Jin
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516029, China
| | - Takanori Katsube
- National Institute of Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, 263-8555, Japan
| | - Bing Wang
- National Institute of Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, 263-8555, Japan
| | - Hong Zhang
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China.
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China.
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516029, China.
| | - Qiang Li
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China.
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China.
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516029, China.
| | - Cuixia Di
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China.
- College of Life Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China.
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516029, China.
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9
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Fath MA, Liu D, Ewald JT, Robles-Planells C, Tomanek-Chalkley AM, Graves SA, Howe JR, O’Dorisio TM, Rastogi P, Bellizzi AM, Sue O’Dorisio M, Menda Y, Spitz DR. Chemokine Receptor CXCR4 Radioligand Targeted Therapy Using 177Lutetium-pentixather for Pulmonary Neuroendocrine Cancers. Radiat Res 2024; 201:35-47. [PMID: 37989124 PMCID: PMC10896455 DOI: 10.1667/rade-23-00064.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 10/23/2023] [Indexed: 11/23/2023]
Abstract
Intermediate to high-grade lung neuroendocrine tumors (NETs; i.e., atypical carcinoid tumors) and neuroendocrine carcinomas (NECs) are currently difficult to cure. These tumors were found to express the CXCR4 G-protein coupled receptor that can be targeted with radioligands. PCR and flow cytometric analysis of lung NET and NEC cell lines using an anti-CXCR4 antibody demonstrated that all cell lines tested expressed CXCR4. PET/CT imaging with 68Galium-pentixafor in mouse xenografts of NETs and NECs verified tumor targeting that was blocked by a CXCR4 agonist. Clonogenic survival analysis demonstrated a more than additive enhancement of killing when 1 μM auranofin (a thioredoxin reductase inhibitor) was used as a radiosensitizer in combination with 177Lu-pentixather (10 μCi). DMS273 small cell lung cancer xenografts in female nude mice treated with 25 μCi/g 177Lu-pentixather induced inhibition of tumor growth and resulted in an increase in overall survival without causing unacceptable normal tissue toxicities. Immunohistochemical staining of 95 retrospective human samples (containing 90 small cell lung carcinomas) demonstrated 84% CXCR4 positivity. In a multivariable analysis of this cohort that included age, gender, stage, primary site, SSTR2 status, and CXCR4 status, Cox regression models determined that only distant metastasis at presentation (P < 0.01) and a CXCR4 H-score >30 (P = 0.04) were significantly associated with reduced survival. Prospective clinical testing of patient tumors identified CXCR4-positivity in 76% of 21 NECs, 67% of 15 lung NETs (including 8 of 10 atypical carcinoids), and 0% of 25 non-lung NETs (including 5 NETS G3s). These data support the hypothesis that CXCR4-targeted theranostics can be utilized effectively for select NETs and NECs.
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Affiliation(s)
- Melissa A. Fath
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Dijie Liu
- Department of Pediatrics, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Jordan T. Ewald
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Claudia Robles-Planells
- Department of Pediatrics, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Ann M. Tomanek-Chalkley
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Stephen A. Graves
- Department of Radiology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - James R. Howe
- Department of Surgery, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Thomas M. O’Dorisio
- Department of Internal Medicine, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Prerna Rastogi
- Department of Pathology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Andrew M. Bellizzi
- Department of Pathology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - M Sue O’Dorisio
- Department of Pediatrics, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Yusuf Menda
- Department of Radiology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
| | - Douglas R. Spitz
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52240
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10
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Konrad M, Rinscheid A, Wienand G, Nittbaur B, Wester HJ, Janzen T, Lapa C, Pfob CH, Schottelius M. [ 99mTc]Tc-PentixaTec: development, extensive pre-clinical evaluation, and first human experience. Eur J Nucl Med Mol Imaging 2023; 50:3937-3948. [PMID: 37597009 PMCID: PMC10611619 DOI: 10.1007/s00259-023-06395-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/05/2023] [Indexed: 08/21/2023]
Abstract
PURPOSE The clinical success non-invasive imaging of CXCR4 expression using [68 Ga]Ga-PentixaFor-PET warrants an expansion of the targeting concept towards conventional scintigraphy/SPECT with their lower cost and general availability. To this aim, we developed and comparatively evaluated a series of 99mTc-labeled cyclic pentapeptides based on the PentixaFor scaffold. METHODS Six mas3-conjugated CPCR4 analogs with different 4-aminobenzoic acid (Abz)-D-Ala-D-Arg-aa3 linkers (L1-L6) as well as the corresponding HYNIC- and N4-analogs of L6-CPCR4 were synthesized via standard SPPS. Competitive binding studies (IC50 and IC50inv) were carried out using Jurkat T cell lymphoma cells and [125I]FC-131 as radioligand. Internalization kinetics were investigated using hCXCR4-overexpressing Chem-1 cells. Biodistribution studies and small animal SPECT/CT imaging (1 h p.i.) were carried out using Jurkat xenograft bearing CB17/SCID mice. Based on the preclinical results, [99mTc]Tc-N4-L6-CPCR4 ([99mTc]Tc-PentixaTec) was selected for an early translation to the human setting. Five patients with hematologic malignancies underwent [99mTc]Tc-N4-L6-CPCR4 SPECT/planar imaging with individual dosimetry. RESULTS Of the six mas3-conjugated peptides, mas3-L6-CPCR4 (mas3-dap-r-a-Abz-CPCR4) showed the highest CXCR4 affinity (IC50 = 5.0 ± 1.3 nM). Conjugation with N4 (N4-L6-CPCR4) further improved hCXCR4 affinity to 0.6 ± 0.1 nM. [99mTc]Tc-N4-L6-CPCR4 also showed the most efficient internalization (97% of total cellular activity at 2 h) and the highest tumor accumulation (8.6 ± 1.3% iD/g, 1 h p.i.) of the compounds investigated. Therefore, [99mTc]Tc-N4-L6-CPCR4 (termed [99mTc]Tc-PentixaTec) was selected for first-in-human application. [99mTc]Tc-PentixaTec was well tolerated, exhibits a favorable biodistribution and dosimetry profile (2.1-3.4 mSv per 500 MBq) and excellent tumor/background ratios in SPECT and planar imaging. CONCLUSION The successive optimization of the amino acid composition of the linker structure and the N-terminal 99mTc-labeling strategies (mas3 vs HYNIC vs N4) has provided [99mTc]Tc-PentixaTec as a novel, highly promising CXCR4-targeted SPECT agent for clinical application. With its excellent CXCR4 affinity, efficient internalization, high uptake in CXCR4-expressing tissues, suitable clearance/biodistribution characteristics, and favorable human dosimetry, it holds great potential for further clinical use.
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Affiliation(s)
- Matthias Konrad
- Chair for Pharmaceutical Radiochemistry, Faculties of Chemistry and Medicine, Technische Universität München, 85748, Garching, Germany
| | - Andreas Rinscheid
- Medical Physics and Radiation Protection, University Hospital Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Georgine Wienand
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Bernd Nittbaur
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Hans-Jürgen Wester
- Chair for Pharmaceutical Radiochemistry, Faculties of Chemistry and Medicine, Technische Universität München, 85748, Garching, Germany
| | - Tilman Janzen
- Medical Physics and Radiation Protection, University Hospital Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Constantin Lapa
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Christian Helmut Pfob
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany.
| | - Margret Schottelius
- Translational Radiopharmaceutical Sciences, Department of Nuclear Medicine and Department of Oncology, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Rue du Bugnon 25A, Agora, CH-1011, Lausanne, Switzerland.
- AGORA, Pôle de Recherche Sur Le Cancer, 1011, Lausanne, Switzerland.
- SCCL Swiss Cancer Center Leman, 1011, Lausanne, Switzerland.
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11
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Li M, Robles-Planells C, Liu D, Graves SA, Vasquez-Martinez G, Mayoral-Andrade G, Lee D, Rastogi P, Marks BM, Sagastume EA, Weiss RM, Linn-Peirano SC, Johnson FL, Schultz MK, Zepeda-Orozco D. Pre-clinical Evaluation of Biomarkers for Early Detection of Nephrotoxicity Following Alpha-particle Radioligand Therapy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.27.559789. [PMID: 37808634 PMCID: PMC10557737 DOI: 10.1101/2023.09.27.559789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Purpose Cancer treatment with alpha-emitter-based radioligand therapies (α-RLTs) demonstrates promising tumor responses. Radiolabeled peptides are filtered through glomeruli, followed by potential reabsorption of a fraction by proximal tubules, which may cause acute kidney injury (AKI) and chronic kidney disease (CKD). Because tubular cells are considered the primary site of radiopeptides' renal reabsorption and potential injury, the current use of kidney biomarkers of glomerular functional loss limits the evaluation of possible nephrotoxicity and its early detection. This study aimed to investigate whether urinary secretion of tubular injury biomarkers could be used as additional non-invasive sensitive diagnostic tool to identify unrecognizable tubular damage and risk of long-term α-RLTs nephrotoxicity. Methods A bifunctional cyclic peptide, melanocortin ligand-1(MC1L), labeled with [ 203 Pb]Pb-MC1L, was used for [ 212 Pb]Pb-MC1L biodistribution and absorbed dose measurements in CD-1 Elite mice. Mice were treated with [ 212 Pb]Pb-MC1L in a dose escalation study up to levels of radioactivity intended to induce kidney injury. The approach enabled prospective kidney functional and injury biomarker evaluation and late kidney histological analysis to validate these biomarkers. Results Biodistribution analysis identified [ 212 Pb]Pb-MC1L reabsorption in kidneys with a dose deposition of 2.8, 8.9, and 20 Gy for 0.9, 3.0, and 6.7 MBq injected [ 212 Pb]Pb-MC1L doses, respectively. As expected, mice receiving 6.7 MBq had significant weight loss and CKD evidence based on serum creatinine, cystatin C, and kidney histological alterations 28 weeks after treatment. A dose-dependent urinary Neutrophil gelatinase-associated lipocalin (NGAL, tubular injury biomarker) urinary excretion the day after [ 212 Pb]Pb-MC1L treatment highly correlated with the severity of late tubulointerstitial injury and histological findings. Conclusion urine NGAL secretion could be a potential early diagnostic tool to identify unrecognized tubular damage and predict long-term α-RLT-related nephrotoxicity.
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12
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Ren X, Cheng G, Wang Z. Advances in the molecular imaging of primary aldosteronism. Ann Nucl Med 2023:10.1007/s12149-023-01851-y. [PMID: 37393373 DOI: 10.1007/s12149-023-01851-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/29/2023] [Indexed: 07/03/2023]
Abstract
Primary aldosteronism (PA) is the most common cause of secondary hypertension. It predisposes to adverse outcomes such as nephrotoxicity and cardiovascular damage, which are mediated by direct harm from hypertension to the target organs. Accurate subtype diagnosis and localization are crucial elements in choosing the type of treatment for PA in clinical practice since the dominant side of aldosterone secretion in PA affects subsequent treatment options. The gold standard for diagnosing PA subtypes, adrenal venous sampling (AVS), requires specialized expertise, the invasive nature of the procedure and high costs, all of which delay the effective treatment of PA. Nuclide molecular imaging is non-invasive and has wider applications in the diagnosis and treatment of PA. This review aims to provide a summary of the application of radionuclide imaging in the diagnosis, treatment management and prognostic assessment of PA.
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Affiliation(s)
- Xinyi Ren
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016, China
| | - Gang Cheng
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016, China.
| | - Zhengjie Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016, China.
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13
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Gaonkar RH, Schmidt YT, Mansi R, Almeida-Hernanadez Y, Sanchez-Garcia E, Harms M, Münch J, Fani M. Development of a New Class of CXCR4-Targeting Radioligands Based on the Endogenous Antagonist EPI-X4 for Oncological Applications. J Med Chem 2023. [PMID: 37328158 DOI: 10.1021/acs.jmedchem.3c00131] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The peptide fragment of human serum albumin that was identified as an inhibitor of C-X-C motif chemokine receptor 4 (CXCR4), termed EPI-X4, was investigated as a scaffold for the development of CXCR4-targeting radio-theragnostics. Derivatives of its truncated version JM#21 (ILRWSRKLPCVS) were conjugated to 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) and tested in Jurkat and Ghost-CXCR4 cells. Ligand-1, -2, -5, -6, -7, -8, and -9 were selected for radiolabeling. Molecular modeling indicated that 177Lu-DOTA incorporation C-terminally did not interfere with the CXCR4 binding. Lipophilicity, in vitro plasma stability, and cellular uptake hinted 177Lu-7 as superior. In Jurkat xenografts, all radioligands showed >90% washout from the body within an hour, with the exception of 177Lu-7 and 177Lu-9. 177Lu-7 demonstrated best CXCR4-tumor targeting. Ex vivo biodistribution and single-photon emission computed tomography (SPECT)/positron emission tomography (PET)/CT imaging of 177Lu-7/68Ga-7 showed the same distribution profile for both radioligands, characterized by very low uptake in all nontargeted organs except the kidneys. The data support the feasibility of CXCR4-targeting with EPI-X4-based radioligands and designate ligand-7 as a lead candidate for further optimization.
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Affiliation(s)
- Raghuvir Haridas Gaonkar
- Division of Radiopharmaceutical Chemistry, Department Theragnostics, University Hospital Basel, Basel 4031, Switzerland
| | - Yannik Tim Schmidt
- Division of Radiopharmaceutical Chemistry, Department Theragnostics, University Hospital Basel, Basel 4031, Switzerland
| | - Rosalba Mansi
- Division of Radiopharmaceutical Chemistry, Department Theragnostics, University Hospital Basel, Basel 4031, Switzerland
| | - Yasser Almeida-Hernanadez
- Computational Biochemistry, Center of Medical Biotechnology, University of Duisburg-Essen, Essen 45117, Germany
- Computational Bioengineering, Faculty of Bio- and Chemical Engineering, Technical University Dortmund, Dortmund 44227, Germany
| | - Elsa Sanchez-Garcia
- Computational Biochemistry, Center of Medical Biotechnology, University of Duisburg-Essen, Essen 45117, Germany
- Computational Bioengineering, Faculty of Bio- and Chemical Engineering, Technical University Dortmund, Dortmund 44227, Germany
| | - Mirja Harms
- Institute of Molecular Virology, Ulm University Medical Center, Ulm 89081, Germany
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, Ulm 89081, Germany
- Core Facility Functional Peptidomics, Ulm University Medical Center, Ulm 89081, Germany
| | - Melpomeni Fani
- Division of Radiopharmaceutical Chemistry, Department Theragnostics, University Hospital Basel, Basel 4031, Switzerland
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14
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Lepareur N, Ramée B, Mougin-Degraef M, Bourgeois M. Clinical Advances and Perspectives in Targeted Radionuclide Therapy. Pharmaceutics 2023; 15:1733. [PMID: 37376181 DOI: 10.3390/pharmaceutics15061733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Targeted radionuclide therapy has become increasingly prominent as a nuclear medicine subspecialty. For many decades, treatment with radionuclides has been mainly restricted to the use of iodine-131 in thyroid disorders. Currently, radiopharmaceuticals, consisting of a radionuclide coupled to a vector that binds to a desired biological target with high specificity, are being developed. The objective is to be as selective as possible at the tumor level, while limiting the dose received at the healthy tissue level. In recent years, a better understanding of molecular mechanisms of cancer, as well as the appearance of innovative targeting agents (antibodies, peptides, and small molecules) and the availability of new radioisotopes, have enabled considerable advances in the field of vectorized internal radiotherapy with a better therapeutic efficacy, radiation safety and personalized treatments. For instance, targeting the tumor microenvironment, instead of the cancer cells, now appears particularly attractive. Several radiopharmaceuticals for therapeutic targeting have shown clinical value in several types of tumors and have been or will soon be approved and authorized for clinical use. Following their clinical and commercial success, research in that domain is particularly growing, with the clinical pipeline appearing as a promising target. This review aims to provide an overview of current research on targeting radionuclide therapy.
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Affiliation(s)
- Nicolas Lepareur
- Comprehensive Cancer Center Eugène Marquis, 35000 Rennes, France
- Inserm, INRAE, Institut NUMECAN (Nutrition, Métabolismes et Cancer)-UMR 1317, Univ Rennes, 35000 Rennes, France
| | - Barthélémy Ramée
- Nuclear Medicine Department, Nantes University Hospital, 44000 Nantes, France
| | - Marie Mougin-Degraef
- Nuclear Medicine Department, Nantes University Hospital, 44000 Nantes, France
- Inserm, CNRS, CRCI2NA (Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes-Angers)-UMR 1307, Université de Nantes, ERL 6001, 44000 Nantes, France
| | - Mickaël Bourgeois
- Nuclear Medicine Department, Nantes University Hospital, 44000 Nantes, France
- Inserm, CNRS, CRCI2NA (Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes-Angers)-UMR 1307, Université de Nantes, ERL 6001, 44000 Nantes, France
- Groupement d'Intérêt Public ARRONAX, 1 Rue Aronnax, 44817 Saint Herblain, France
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15
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Yu J, Zhou X, Shen L. CXCR4-Targeted Radiopharmaceuticals for the Imaging and Therapy of Malignant Tumors. Molecules 2023; 28:4707. [PMID: 37375261 DOI: 10.3390/molecules28124707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/31/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
C-X-C chemokine receptor type 4 (CXCR4), also known as fusin or CD184, is a 7-transmembrane helix G-protein-coupled receptor that is encoded by the CXCR4 gene. Involved in various physiological processes, CXCR4 could form an interaction with its endogenous partner, chemokine ligand 12 (CXCL12), which is also named SDF-1. In the past several decades, the CXCR4/CXCL12 couple has attracted a large amount of research interest due to its critical functions in the occurrence and development of refractory diseases, such as HIV infection, inflammatory diseases, and metastatic cancer, including breast cancer, gastric cancer, and non-small cell lung cancer. Furthermore, overexpression of CXCR4 in tumor tissues was shown to have a high correlation with tumor aggressiveness and elevated risks of metastasis and recurrence. The pivotal roles of CXCR4 have encouraged an effort around the world to investigate CXCR4-targeted imaging and therapeutics. In this review, we would like to summarize the implementation of CXCR4-targeted radiopharmaceuticals in the field of various kinds of carcinomas. The nomenclature, structure, properties, and functions of chemokines and chemokine receptors are briefly introduced. Radiopharmaceuticals that could target CXCR4 will be described in detail according to their structure, such as pentapeptide-based structures, heptapeptide-based structures, nonapeptide-based structures, etc. To make this review a comprehensive and informative article, we would also like to provide the predictive prospects for the CXCR4-targeted species in future clinical development.
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Affiliation(s)
- Jingjing Yu
- HTA Co., Ltd., Beijing 102413, China
- Department of Nuclear Technology Application, China Institute of Atomic Energy, Beijing 102413, China
| | - Xu Zhou
- HTA Co., Ltd., Beijing 102413, China
| | - Langtao Shen
- HTA Co., Ltd., Beijing 102413, China
- National Isotope Center of Engineering and Technology, China Institute of Atomic Energy, Beijing 102413, China
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16
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Renard I, Domarkas J, Poty S, Burke BP, Roberts DP, Goze C, Denat F, Cawthorne CJ, Archibald SJ. In vivo validation of 68Ga-labeled AMD3100 conjugates for PET imaging of CXCR4. Nucl Med Biol 2023; 120-121:108335. [PMID: 37068392 DOI: 10.1016/j.nucmedbio.2023.108335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/13/2023] [Accepted: 03/21/2023] [Indexed: 04/19/2023]
Abstract
INTRODUCTION The chemokine receptor CXCR4 has been shown to be over-expressed in multiple types of cancer and is usually associated with aggressive phenotypes and poor prognosis. Successfully targeting and imaging the expression level of this receptor in tumours could inform treatment selection and facilitate patient stratification. METHODS Known conjugates of AMD3100 that are specific to CXCR4 have been radiolabelled with gallium-68 and evaluated in naïve and tumour-bearing mice. Tumour uptake of the radiotracers was compared to the known CXCR4-specific PET imaging agent, [68Ga]Pentixafor. RESULTS Ex vivo biodistribution in naïve animals showed CXCR4-mediated uptake in the liver with both radiotracers, confirmed by blocking experiments with the high affinity CXCR4 antagonist Cu2CB-Bicyclam (IC50 = 3 nM). PET/CT imaging studies revealed one tracer to have a higher accumulation in the tumour (SUVMean of 0.89 ± 0.14 vs 0.32 ± 0.11). CXCR4-specificity of the best performing tracer was confirmed by administration of a blocking dose of Cu2CB-Bicyclam, showing a 3- and 6-fold decrease in tumour and liver uptake, respectively. CONCLUSION AND ADVANCES IN KNOWLEDGE This initial study offers some interesting insights on the impact of some structural features on the pharmacokinetics and metabolic stability of the radiotracer. Additionally, as Pentixafor only binds to human CXCR4, the development of CXCR4-targeted imaging agents that bind to the receptor across different species could significantly help with preclinical evaluation of new CXCR4-specific therapeutics.
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Affiliation(s)
- Isaline Renard
- Centre for Biomedicine and PET Research Centre, Hull York Medical School, University of Hull, Hull HU6 7RX, UK
| | - Juozas Domarkas
- Centre for Biomedicine and PET Research Centre, Hull York Medical School, University of Hull, Hull HU6 7RX, UK
| | - Sophie Poty
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Benjamin P Burke
- Centre for Biomedicine and PET Research Centre, Hull York Medical School, University of Hull, Hull HU6 7RX, UK
| | - David P Roberts
- Centre for Biomedicine and PET Research Centre, Hull York Medical School, University of Hull, Hull HU6 7RX, UK
| | - Christine Goze
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, Dijon, France.
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, Dijon, France.
| | - Christopher J Cawthorne
- Centre for Biomedicine and PET Research Centre, Hull York Medical School, University of Hull, Hull HU6 7RX, UK; Nuclear Medicine & Molecular Imaging, Department of Imaging & Pathology, KU Leuven, 3000 Leuven, Belgium.
| | - Stephen J Archibald
- Centre for Biomedicine and PET Research Centre, Hull York Medical School, University of Hull, Hull HU6 7RX, UK.
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17
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Benčurová K, Friske J, Anderla M, Mayrhofer M, Wanek T, Nics L, Egger G, Helbich TH, Hacker M, Haug A, Mitterhauser M, Balber T. CAM-Xenograft Model Provides Preclinical Evidence for the Applicability of [ 68Ga]Ga-Pentixafor in CRC Imaging. Cancers (Basel) 2022; 14:cancers14225549. [PMID: 36428644 PMCID: PMC9688097 DOI: 10.3390/cancers14225549] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/24/2022] [Accepted: 11/02/2022] [Indexed: 11/16/2022] Open
Abstract
Colorectal cancer is one of the leading causes of cancer-related deaths worldwide. Increased expression of CXCR4 has been associated with liver metastasis, disease progression, and shortened survival. Using in vitro cell binding studies and the in ovo model, we aimed to investigate the potential of [68Ga]Ga-Pentixafor, a radiotracer specifically targeting human CXCR4, for CRC imaging. Specific membrane binding and internalisation of [68Ga]Ga-Pentixafor was shown for HT29 cells, but not for HCT116 cells. Accordingly, [68Ga]Ga-Pentixafor accumulated specifically in CAM-xenografts derived from HT29 cells, but not in HCT116 xenografts, as determined by µPET/MRI. The CAM-grown xenografts were histologically characterised, demonstrating vascularisation of the graft, preserved expression of human CXCR4, and viability of the tumour cells within the grafts. In vivo viability was further confirmed by µPET/MRI measurements using 2-[18F]FDG as a surrogate for glucose metabolism. [68Ga]Ga-Pentixafor µPET/MRI scans showed distinct radiotracer accumulation in the chick embryonal heart, liver, and kidneys, whereas 2-[18F]FDG uptake was predominantly found in the kidneys and joints of the chick embryos. Our findings suggest that [68Ga]Ga-Pentixafor is an interesting novel radiotracer for CRC imaging that is worth further investigation. Moreover, this study further supports the suitability of the CAM-xenograft model for the initial preclinical evaluation of targeted radiopharmaceuticals.
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Affiliation(s)
- Katarína Benčurová
- Ludwig Boltzmann Institute Applied Diagnostics, 1090 Vienna, Austria
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Joachim Friske
- Division of Molecular and Structural Preclinical Imaging, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Maximilian Anderla
- Ludwig Boltzmann Institute Applied Diagnostics, 1090 Vienna, Austria
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
- Department for Inorganic Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Manuela Mayrhofer
- School of Medical Engineering and Applied Social Sciences, University of Applied Sciences Upper Austria, 4020 Linz, Austria
- QIMP Team, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas Wanek
- Division of Molecular and Structural Preclinical Imaging, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Lukas Nics
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Gerda Egger
- Ludwig Boltzmann Institute Applied Diagnostics, 1090 Vienna, Austria
- Department of Pathology, Medical University of Vienna, 1090 Vienna, Austria
- Comprehensive Cancer Center, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas H. Helbich
- Division of Molecular and Structural Preclinical Imaging, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Marcus Hacker
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Alexander Haug
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
- Christian Doppler Laboratory Applied Metabolomics, 1090 Vienna, Austria
| | - Markus Mitterhauser
- Ludwig Boltzmann Institute Applied Diagnostics, 1090 Vienna, Austria
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
- Department for Inorganic Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
- Correspondence:
| | - Theresa Balber
- Ludwig Boltzmann Institute Applied Diagnostics, 1090 Vienna, Austria
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
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Sun J, Huangfu Z, Yang J, Wang G, Hu K, Gao M, Zhong Z. Imaging-guided targeted radionuclide tumor therapy: From concept to clinical translation. Adv Drug Deliv Rev 2022; 190:114538. [PMID: 36162696 DOI: 10.1016/j.addr.2022.114538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 09/03/2022] [Accepted: 09/11/2022] [Indexed: 01/24/2023]
Abstract
Since the first introduction of sodium iodide I-131 for use with thyroid patients almost 80 years ago, more than 50 radiopharmaceuticals have reached the markets for a wide range of diseases, especially cancers. The nuclear medicine paradigm also shifts from solely molecular imaging or radionuclide therapy to imaging-guided radionuclide therapy, which is deemed a vital component of precision cancer therapy and an emerging medical modality for personalized medicine. The imaging-guided radionuclide therapy highlights the systematic integration of targeted nuclear diagnostics and radionuclide therapeutics. Regarding this, nuclear imaging serves to "visualize" the lesions and guide the therapeutic strategy, followed by administration of a precise patient specific dose of radiotherapeutics for treatment according to the absorbed dose to different organs and tumors calculated by dosimetry tools, and finally repeated imaging to predict the prognosis. This strategy leads to significantly enhanced therapeutic efficacy, improved patient outcomes, and manageable adverse events. In this review, we provide an overview of imaging-guided targeted radionuclide therapy for different tumors such as advanced prostate cancer and neuroendocrine tumors, with a focus on development of new radioligands and their preclinical and clinical results, and further discuss about challenges and future perspectives.
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Affiliation(s)
- Juan Sun
- College of Pharmaceutical Sciences, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, People's Republic of China; Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Zhenyuan Huangfu
- College of Pharmaceutical Sciences, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, People's Republic of China; Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Jiangtao Yang
- College of Pharmaceutical Sciences, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, People's Republic of China; Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
| | - Guanglin Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People's Republic of China.
| | - Kuan Hu
- Department of Advanced Nuclear Medicine Sciences, Institute for Quantum Medical Sciences, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan.
| | - Mingyuan Gao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People's Republic of China
| | - Zhiyuan Zhong
- College of Pharmaceutical Sciences, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, People's Republic of China; Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China.
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19
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Watts A, Singh B, Singh H, Kaur H, Bal A, Vohra M, Arora SK, Behera D. Gallium-68-Pentixafor PET/CT demonstrating in vivo CXCR4 receptors' overexpression in rare lung malignancies: Correlation with the histological and histochemical findings. J Nucl Med Technol 2022; 50:278-281. [PMID: 35610039 DOI: 10.2967/jnmt.122.264141] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/27/2022] [Indexed: 11/16/2022] Open
Abstract
Objectives: Gallium-68 [68Ga] Pentixafor PET/CT imaging allows non-invasive assessment of CXCR4 expression in various malignancies, but its use in rare lung cancer variants is not reported. Methods: [68Ga] Pentixafor PET/CT imaging was performed in 6 patients (3M:3F; mean age=57.0±16.80 years) with suspected lung masses. Whole-body PET/CT images were acquired at 1-h after the i.v. injection of 148.0-185.0 MBq of the tracer. PET/CT images were reconstructed and analysed. The image findings were correlated with histopathological and quantitative (CXCR4-receptors) FACS analysis. Results: Histopathological diagnosis of haemangioendothelioma, sarcomatoid carcinoma and hemangiopericytoma was confirmed in 1-patient each. Lung metastasis was diagnosed in the remaining 3/6 patients with primary sarcoma (n = 1), RCC (n = 1) and unknown primary (n = 1). Increased tracer uptake in the primary lung mass with SUVmax values of 3.0, 6.3 and 13.0 were noted in hemangiopericytoma, sarcomatoid carcinoma and haemangioendothelioma cases respectively. The mean values of SUVmax, MFI and % stained cells were highest in haemangioendothelioma. Among 3 patients with lung metastases, the highest SUVmax value of 9.5 was observed in primary sarcoma patient. Conclusion: [68Ga] Pentixafor selectively targets the in vivo whole-body disease burden of CXCR4 receptors. This approach thus holds good promise for developing suitable radio-theranostics in lung cancers expressing these targets.
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Affiliation(s)
- Ankit Watts
- Department of Nuclear Medicine, PGIMER, India
| | | | | | | | | | - Mehak Vohra
- Department of Immunopathology, PGIMER, India
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20
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Sammartano A, Migliari S, Scarlattei M, Baldari G, Serreli G, Lazzara C, Garau L, Ghetti C, Ruffini L. Performance and long-term consistency of five Galliform 68Ge/68Ga generators used for clinical Ga-68 preparations over a 4 year period. Nucl Med Commun 2022; 43:568-576. [PMID: 35190517 DOI: 10.1097/mnm.0000000000001545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Gallium-68 is a positron emitter for PET applications that can be produced without cyclotron by a germanium (Ge-68) chloride/gallium (Ga-68) chloride generator. Short half-life (67.71 min) of Ga-68, matching pharmacokinetic properties of small biomolecules, facilitates isotope utilization in compounding radiopharmaceuticals for PET imaging. The increasing cost of good manufacturing practice-compliant generators has strengthened the need for radionuclide efficient use by planning specific radiopharmaceutical sessions during the week, careful maintenance of the generator and achievement of high labeling yield and radiochemical purity (RCP) of the radiolabeled molecules. METHODS The aim of this study was to evaluate the annual performance of five consecutive 68Ge/68Ga generators used for small-scale preparations of 68Ga-radiopharmaceuticals. To assess the long-term efficiency of isotope production we measured the weekly elution yield. To assess process efficiency we measured elution yield, labeling yield and RCP of four radiopharmaceutical preparations (68Ga-DOTATOC, 68Ga-PSMA-HBED-CC, 68Ga-PENTIXAFOR and 68Ga-DOTATATE). RESULTS The annual mean elution yield of the generators was 74.7%, higher than that indicated by the manufacturer, and it never went below 65%. The Ge-68 level in the final products was under the detection limits in all the produced batches (mean value 0.0000048%). The RCP of radiopharmaceuticals determined by high-performance liquid chromatography was 98 ± 0.22%. The mean yield of radiolabelling was 64.68, 68.71, 57 and 63.68% for 68Ga-DOTATOC, 68Ga-PSMA-HBED-CC, 68GaPENTIXAFOR and 68Ga-DOTATATE. CONCLUSION The ability to prepare in the hospital radiopharmacy high-purity and pharmaceutically acceptable 68Ga-radiolabeled probes on a routine basis facilitates patient access to precision imaging for clinical and research aims.
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Affiliation(s)
| | | | | | | | - Giulio Serreli
- Diagnostic Department, Medical Physics Unit, Azienda Ospedaliero-Universitaria di Parma, Gramsci, Parma, Italy
| | | | | | - Caterina Ghetti
- Diagnostic Department, Medical Physics Unit, Azienda Ospedaliero-Universitaria di Parma, Gramsci, Parma, Italy
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21
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Kwon D, Takata K, Zhang Z, Chong L, Fraser B, Zeisler J, Miyata-Takata T, Merkens H, Rousseau J, Aoki T, Kuo HT, Tan R, Zhang C, Lau J, Villa D, Uribe CF, Lin KS, Steidl C, Benard F. Targeting Refractory Mantle Cell Lymphoma for Imaging and Therapy Using C-X-C Chemokine Receptor Type 4 Radioligands. Clin Cancer Res 2022; 28:1628-1639. [PMID: 35078860 PMCID: PMC9365342 DOI: 10.1158/1078-0432.ccr-21-3284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/30/2021] [Accepted: 01/21/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE Mantle cell lymphoma (MCL) is associated with poor survival. The purpose of this study was to assess whether the C-X-C chemokine receptor type 4 (CXCR4) is a useful target for imaging and radioligand therapy of MCL, using a novel pair of radioligands, [68Ga]Ga and [177Lu]Lu-BL02. EXPERIMENTAL DESIGN We performed a retrospective analysis of 146 patients with MCL to evaluate CXCR4 expression and its correlation with outcomes. Guided by in silico methods, we designed BL02, a new radioligand labelled with 68Ga or 177Lu for PET imaging and therapy, respectively. We performed imaging and biodistribution studies in xenograft models with varying CXCR4 expression. We evaluated [177Lu]Lu-BL02 in MCL models, and evaluated its potential for therapy in Z138 MCL xenografts. RESULTS Phosphorylated and nonphosphorylated CXCR4 expression were correlated with poor survival in patients with MCL and characterized by unique underlying molecular signatures. [68Ga]Ga-BL02 uptake correlated with CXCR4 expression, and localized lesions in a metastatic xenograft model. [177Lu]Lu-BL02 showed high uptake in MCL xenografts. Therapy studies with a single dose in the Z138 model showed tumor regression and improved survival compared with a control group. Upon regrowth, the treated mice experienced concurrent metastasis alongside localized xenograft regrowth, and recurrent lesions showed enhanced CXCR4 signaling. CONCLUSIONS CXCR4 is an independent factor of poor prognosis for MCL and a promising target for imaging and radioligand therapy. [68Ga]Ga-BL02 showed high contrast to visualize CXCR4-expressing xenografts for PET imaging and [177Lu]Lu-BL02 induced rapid tumor regression in a preclinical model of MCL.
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Affiliation(s)
- Daniel Kwon
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Katsuyoshi Takata
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada.,Division of Molecular and Cellular Pathology, Niigata University Graduate School of Medical and Dental Sciences, Asahimachi-dori, Chuo-ku, Niigata, Japan
| | - Zhengxing Zhang
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Lauren Chong
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Bryan Fraser
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Jutta Zeisler
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Tomoko Miyata-Takata
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Helen Merkens
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Julie Rousseau
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Tomohiro Aoki
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Hsiou-Ting Kuo
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Ruiyan Tan
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Chengcheng Zhang
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Joseph Lau
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Diego Villa
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Carlos F. Uribe
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada.,Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kuo-Shyan Lin
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada.,Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christian Steidl
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Francois Benard
- Molecular Oncology, British Columbia Cancer, Vancouver, British Columbia, Canada.,Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.,Corresponding Author: Francois Benard, Department of Functional Imaging, BC Cancer Agency, 600 West 10th Avenue, Vancouver, V5Z 4E6, Canada. E-mail:
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22
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Marcazzan S, Braz Carvalho MJ, Konrad M, Strangmann J, Tenditnaya A, Baumeister T, Schmid RM, Wester HJ, Ntziachristos V, Gorpas D, Wang TC, Schottelius M, Quante M. CXCR4 peptide-based fluorescence endoscopy in a mouse model of Barrett's esophagus. EJNMMI Res 2022; 12:2. [PMID: 35006394 PMCID: PMC8748556 DOI: 10.1186/s13550-021-00875-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/24/2021] [Indexed: 12/14/2022] Open
Abstract
Background Near-infrared (NIR) fluorescence imaging has been emerging as a promising strategy to overcome the high number of early esophageal adenocarcinomas missed by white light endoscopy and random biopsy collection. We performed a preclinical assessment of fluorescence imaging and endoscopy using a novel CXCR4-targeted fluorescent peptide ligand in the L2-IL1B mouse model of Barrett’s esophagus. Methods Six L2-IL1B mice with advanced stage of disease (12–16 months old) were injected with the CXCR4-targeted, Sulfo-Cy5-labeled peptide (MK007), and ex vivo wide-field imaging of the whole stomach was performed 4 h after injection. Before ex vivo imaging, fluorescence endoscopy was performed in three L2-IL1B mice (12–14 months old) by a novel imaging system with two L2-IL1B mice used as negative controls. Results Ex vivo imaging and endoscopy in L2-IL1B mice showed that the CXCR4-targeted MK007 accumulated mostly in the dysplastic lesions with a mean target-to-background ratio > 2. The detection of the Sulfo-Cy5 signal in dysplastic lesions and its co-localization with CXCR4 stained cells by confocal microscopy further confirmed the imaging results. Conclusions This preliminary preclinical study shows that CXCR4-targeted fluorescence endoscopy using MK007 can detect dysplastic lesions in a mouse model of Barrett’s esophagus. Further investigations are needed to assess its use in the clinical setting. Supplementary Information The online version contains supplementary material available at 10.1186/s13550-021-00875-7.
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Affiliation(s)
- Sabrina Marcazzan
- II Medizinische Klinik, Klinikum rechts der isar, Technische Universität München, Munich, Germany.,Chair of Biological Imaging, School of Medicine, Technische Universität München, Munich, Germany.,Helmholtz Zentrum München, Institute of Biological and Medical Imaging, Neuherberg, Germany.,Christian Doppler Laboratory for Viral Immunotherapy of Cancer, Medical University of Innsbruck, Peter-Mayr-Straße 4b, 6020, Innsbruck, Austria
| | - Marcos J Braz Carvalho
- II Medizinische Klinik, Klinikum rechts der isar, Technische Universität München, Munich, Germany
| | - Matthias Konrad
- Institut für Pharmazeutische Radiochemie, Technische Universität München, Munich, Germany
| | - Julia Strangmann
- II Medizinische Klinik, Klinikum rechts der isar, Technische Universität München, Munich, Germany.,Innere Medizin II, Universitätsklinik Freiburg, Universität Freiburg, Freiburg im Breisgau, Germany
| | - Anna Tenditnaya
- Chair of Biological Imaging, School of Medicine, Technische Universität München, Munich, Germany.,Helmholtz Zentrum München, Institute of Biological and Medical Imaging, Neuherberg, Germany
| | - Theresa Baumeister
- II Medizinische Klinik, Klinikum rechts der isar, Technische Universität München, Munich, Germany
| | - Roland M Schmid
- II Medizinische Klinik, Klinikum rechts der isar, Technische Universität München, Munich, Germany
| | - Hans-Jürgen Wester
- Institut für Pharmazeutische Radiochemie, Technische Universität München, Munich, Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging, School of Medicine, Technische Universität München, Munich, Germany.,Helmholtz Zentrum München, Institute of Biological and Medical Imaging, Neuherberg, Germany
| | - Dimitris Gorpas
- Chair of Biological Imaging, School of Medicine, Technische Universität München, Munich, Germany.,Helmholtz Zentrum München, Institute of Biological and Medical Imaging, Neuherberg, Germany
| | - Timothy C Wang
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Center, New York, NY, USA
| | - Margret Schottelius
- Institut für Pharmazeutische Radiochemie, Technische Universität München, Munich, Germany.,Translational Radiopharmaceutical Sciences, Departments of Nuclear Medicine and Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Michael Quante
- II Medizinische Klinik, Klinikum rechts der isar, Technische Universität München, Munich, Germany. .,Innere Medizin II, Universitätsklinik Freiburg, Universität Freiburg, Freiburg im Breisgau, Germany.
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23
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Schottelius M, Herrmann K, Lapa C. In Vivo Targeting of CXCR4-New Horizons. Cancers (Basel) 2021; 13:5920. [PMID: 34885030 PMCID: PMC8656854 DOI: 10.3390/cancers13235920] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/22/2021] [Accepted: 11/22/2021] [Indexed: 01/23/2023] Open
Abstract
Given its pre-eminent role in the context of tumor cell growth as well as metastasis, the C-X-C motif chemokine receptor 4 (CXCR4) has attracted a lot of interest in the field of nuclear oncology, and clinical evidence on the high potential of CXCR4-targeted theranostics is constantly accumulating. Additionally, since CXCR4 also represents a key player in the orchestration of inflammatory responses to inflammatory stimuli, based on its expression on a variety of pro- and anti-inflammatory immune cells (e.g., macrophages and T-cells), CXCR4-targeted inflammation imaging has recently gained considerable attention. Therefore, after briefly summarizing the current clinical status quo of CXCR4-targeted theranostics in cancer, this review primarily focuses on imaging of a broad spectrum of inflammatory diseases via the quantification of tissue infiltration with CXCR4-expressing immune cells. An up-to-date overview of the ongoing preclinical and clinical efforts to visualize inflammation and its resolution over time is provided, and the predictive value of the CXCR4-associated imaging signal for disease outcome is discussed. Since the sensitivity and specificity of CXCR4-targeted immune cell imaging greatly relies on the availability of suitable, tailored imaging probes, recent developments in the field of CXCR4-targeted imaging agents for various applications are also addressed.
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Affiliation(s)
- Margret Schottelius
- Translational Radiopharmaceutical Sciences, Department of Nuclear Medicine and of Oncology, Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne (UNIL), 1011 Lausanne, Switzerland
| | - Ken Herrmann
- Department of Nuclear Medicine, German Cancer Consortium (DKTK)-University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany;
| | - Constantin Lapa
- Nuclear Medicine, Medical Faculty, University of Augsburg, 86156 Augsburg, Germany
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24
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Dun Y, Huang G, Liu J, Wei W. ImmunoPET imaging of hematological malignancies: From preclinical promise to clinical reality. Drug Discov Today 2021; 27:1196-1203. [PMID: 34838729 DOI: 10.1016/j.drudis.2021.11.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/22/2021] [Accepted: 11/18/2021] [Indexed: 12/23/2022]
Abstract
Immuno-positron emission tomography (immunoPET) imaging is a paradigm-shifting imaging technique for whole-body and all-lesion tumor detection, based on the combined specificity of tumor-targeting vectors [e.g., monoclonal antibodies (mAbs), nanobodies, and bispecific antibodies] and the sensitivity of PET imaging. By noninvasively, comprehensively, and serially revealing heterogeneous tumor antigen expression, immunoPET imaging is gradually improving the theranostic prospects for hematological malignancies. In this review, we summarize the available literature regarding immunoPET in imaging hematological malignancies. We also highlight the pros and cons of current conjugation strategies, and modular chemistry that can be leveraged to develop novel immunoPET probes for hematological malignancies. Lastly, we discuss the use of immunoPET imaging in guiding antibody drug development.
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Affiliation(s)
- Yiting Dun
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200217, China
| | - Gang Huang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200217, China; Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Jianjun Liu
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200217, China.
| | - Weijun Wei
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200217, China.
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25
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Luyten K, Van Loy T, Cawthorne C, Deroose CM, Schols D, Bormans G, Cleeren F. D-Peptide-Based Probe for CXCR4-Targeted Molecular Imaging and Radionuclide Therapy. Pharmaceutics 2021; 13:pharmaceutics13101619. [PMID: 34683912 PMCID: PMC8537445 DOI: 10.3390/pharmaceutics13101619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/16/2021] [Accepted: 09/29/2021] [Indexed: 12/29/2022] Open
Abstract
Positron emission tomography (PET) imaging of the C-X-C chemokine receptor 4 (CXCR4) with [68Ga]PentixaFor has intrinsic diagnostic value and is used to select patients for personalized CXCR4-targeted radionuclide therapy with its therapeutic radiopharmaceutical companion [177Lu]PentixaTher. However, a CXCR4-targeting radiopharmaceutical labeled with fluorine-18 is still of high value due to its favorable characteristics over gallium-68. Furthermore, clinical results with [177Lu]PentixaTher are promising, but there is still room for improvement regarding pharmacokinetics and dosimetry profile. Therefore, this study aimed to develop innovative CXCR4-targeting radiopharmaceuticals, both for diagnostic and therapeutic purposes, starting from a D-amino acid-based peptide probe (DV1-k-(DV3)) that conserves high CXCR4 binding affinity after radiolabeling. AlF-NOTA-DV1-k-(DV3) showed similar in vitro binding affinity to human CXCR4 (hCXCR4) compared to [natGa]PentixaFor (half-maximal inhibitory concentration (IC50): 5.3 ± 0.9 nM and 8.6 ± 1.1 nM, respectively) and also binds to murine CXCR4 (mCXCR4) (IC50: 33.4 ± 13.5 nM) while [natGa]PentixaFor is selective for hCXCR4 (IC50 > 1000 nM for mCXCR4). Both the diagnostic radiotracers based on the DV1-k-(DV3) vector platform, [18F]AlF-NOTA-DV1-k-(DV3) and [68Ga]Ga-DOTA-DV1-k-(DV3), and their therapeutic companion [177Lu]Lu-DOTA-DV1-k-(DV3) were successfully produced in high yield, demonstrated high in vitro and in vivo stability, and have the same favorable pharmacokinetic profile. Furthermore, in wild-type mice and a hCXCR4-expressing tumor model, [18F]AlF-NOTA-DV1-k-(DV3) shows CXCR4-specific targeting in mCXCR4-expressing organs such as liver (mean standardized uptake value (SUVmean) 8.2 ± 1.0 at 75 min post-injection (p.i.)), spleen (SUVmean 2.5 ± 1.0 at 75 min p.i.), and bone (SUVmean 0.4 ± 0.1 at 75 min p.i., femur harboring bone marrow) that can be blocked with the CXCR4 antagonist AMD3100. However, in a hCXCR4-expressing tumor model, tumor uptake of [18F]AlF-NOTA-DV1-k-(DV3) was significantly lower (SUVmean 0.6 ± 0.2) compared to [68Ga]PentixaFor (SUVmean 2.9). This might be explained by the high affinity of [18F]AlF-NOTA-DV1-k-(DV3) toward both mCXCR4 and hCXCR4. High mCXCR4 expression in mouse liver results in a large fraction of [18F]AlF-NOTA-DV1-k-(DV3) that is sequestered to the liver, resulting despite its similar in vitro affinity for hCXCR4, in lower tumor accumulation compared to [68Ga]PentixaFor. As CXCR4 is not expressed in healthy human liver, the findings in mice are not predictive for the potential clinical performance of this novel class of CXCR4-targeting radiotracers. In conclusion, the DV1-k-(DV3) scaffold is a promising vector platform for translational CXCR4-directed research.
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Affiliation(s)
- Kaat Luyten
- Laboratory for Radiopharmaceutical Research, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium; (K.L.); (G.B.)
| | - Tom Van Loy
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (T.V.L.); (D.S.)
| | - Christopher Cawthorne
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium; (C.C.); (C.M.D.)
| | - Christophe M. Deroose
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium; (C.C.); (C.M.D.)
| | - Dominique Schols
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (T.V.L.); (D.S.)
| | - Guy Bormans
- Laboratory for Radiopharmaceutical Research, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium; (K.L.); (G.B.)
| | - Frederik Cleeren
- Laboratory for Radiopharmaceutical Research, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium; (K.L.); (G.B.)
- Correspondence:
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26
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Weich A, Werner RA, Buck AK, Hartrampf PE, Serfling SE, Scheurlen M, Wester HJ, Meining A, Kircher S, Higuchi T, Pomper MG, Rowe SP, Lapa C, Kircher M. CXCR4-Directed PET/CT in Patients with Newly Diagnosed Neuroendocrine Carcinomas. Diagnostics (Basel) 2021; 11:diagnostics11040605. [PMID: 33805264 PMCID: PMC8067200 DOI: 10.3390/diagnostics11040605] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 01/29/2023] Open
Abstract
We aimed to elucidate the diagnostic potential of the C-X-C motif chemokine receptor 4 (CXCR4)-directed positron emission tomography (PET) tracer 68Ga-Pentixafor in patients with poorly differentiated neuroendocrine carcinomas (NEC), relative to the established reference standard 18F-FDG PET/computed tomography (CT). In our database, we retrospectively identified 11 treatment-naïve patients with histologically proven NEC, who underwent 18F-FDG and CXCR4-directed PET/CT for staging and therapy planning. The images were analyzed on a per-patient and per-lesion basis and compared to immunohistochemical staining (IHC) of CXCR4 from PET-guided biopsies. 68Ga-Pentixafor visualized tumor lesions in 10/11 subjects, while18F-FDG revealed sites of disease in all 11 patients. Although weak to moderate CXCR4 expression could be corroborated by IHC in 10/11 cases, 18F-FDG PET/CT detected significantly more tumor lesions (102 vs. 42; total lesions, n = 107; p < 0.001). Semi-quantitative analysis revealed markedly higher 18F-FDG uptake as compared to 68Ga-Pentixafor (maximum and mean standardized uptake values (SUV) and tumor-to-background ratios (TBR) of cancerous lesions, SUVmax: 12.8 ± 9.8 vs. 5.2 ± 3.7; SUVmean: 7.4 ± 5.4 vs. 3.1 ± 3.2, p < 0.001; and, TBR 7.2 ± 7.9 vs. 3.4 ± 3.0, p < 0.001). Non-invasive imaging of CXCR4 expression in NEC is inferior to the reference standard 18F-FDG PET/CT.
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Affiliation(s)
- Alexander Weich
- Department of Internal Medicine I, Gastroenterology, University Hospital Würzburg, 97080 Würzburg, Germany; (A.W.); (M.S.); (A.M.)
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, NET Zentrum, University Hospital Würzburg, 97080 Würzburg, Germany; (R.A.W.); (A.K.B.); (C.L.)
| | - Rudolf A. Werner
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, NET Zentrum, University Hospital Würzburg, 97080 Würzburg, Germany; (R.A.W.); (A.K.B.); (C.L.)
- Department of Nuclear Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.E.H.); (S.E.S.); (T.H.)
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of Nuclear Medicine and Molecular Imaging, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA; (M.G.P.); (S.P.R.)
| | - Andreas K. Buck
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, NET Zentrum, University Hospital Würzburg, 97080 Würzburg, Germany; (R.A.W.); (A.K.B.); (C.L.)
- Department of Nuclear Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.E.H.); (S.E.S.); (T.H.)
| | - Philipp E. Hartrampf
- Department of Nuclear Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.E.H.); (S.E.S.); (T.H.)
| | - Sebastian E. Serfling
- Department of Nuclear Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.E.H.); (S.E.S.); (T.H.)
| | - Michael Scheurlen
- Department of Internal Medicine I, Gastroenterology, University Hospital Würzburg, 97080 Würzburg, Germany; (A.W.); (M.S.); (A.M.)
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, NET Zentrum, University Hospital Würzburg, 97080 Würzburg, Germany; (R.A.W.); (A.K.B.); (C.L.)
| | - Hans-Jürgen Wester
- Pharmaceutical Radiochemistry, Technische Universität München, 80333 München, Germany;
| | - Alexander Meining
- Department of Internal Medicine I, Gastroenterology, University Hospital Würzburg, 97080 Würzburg, Germany; (A.W.); (M.S.); (A.M.)
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, NET Zentrum, University Hospital Würzburg, 97080 Würzburg, Germany; (R.A.W.); (A.K.B.); (C.L.)
| | - Stefan Kircher
- Institute of Pathology, University of Würzburg, 97080 Würzburg, Germany;
| | - Takahiro Higuchi
- Department of Nuclear Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.E.H.); (S.E.S.); (T.H.)
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
- Comprehensive Heart Failure Center, University Hospital Würzburg, 97080 Würzburg, Germany
| | - Martin G. Pomper
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of Nuclear Medicine and Molecular Imaging, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA; (M.G.P.); (S.P.R.)
| | - Steven P. Rowe
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of Nuclear Medicine and Molecular Imaging, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA; (M.G.P.); (S.P.R.)
| | - Constantin Lapa
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, NET Zentrum, University Hospital Würzburg, 97080 Würzburg, Germany; (R.A.W.); (A.K.B.); (C.L.)
- Department of Nuclear Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.E.H.); (S.E.S.); (T.H.)
- Nuclear Medicine, Medical Faculty, University of Augsburg, 86156 Augsburg, Germany
| | - Malte Kircher
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, NET Zentrum, University Hospital Würzburg, 97080 Würzburg, Germany; (R.A.W.); (A.K.B.); (C.L.)
- Department of Nuclear Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.E.H.); (S.E.S.); (T.H.)
- Nuclear Medicine, Medical Faculty, University of Augsburg, 86156 Augsburg, Germany
- Correspondence:
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27
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Imaging Inflammation with Positron Emission Tomography. Biomedicines 2021; 9:biomedicines9020212. [PMID: 33669804 PMCID: PMC7922638 DOI: 10.3390/biomedicines9020212] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 01/28/2021] [Accepted: 02/12/2021] [Indexed: 12/19/2022] Open
Abstract
The impact of inflammation on the outcome of many medical conditions such as cardiovascular diseases, neurological disorders, infections, cancer, and autoimmune diseases has been widely acknowledged. However, in contrast to neurological, oncologic, and cardiovascular disorders, imaging plays a minor role in research and management of inflammation. Imaging can provide insights into individual and temporospatial biology and grade of inflammation which can be of diagnostic, therapeutic, and prognostic value. There is therefore an urgent need to evaluate and understand current approaches and potential applications for imaging of inflammation. This review discusses radiotracers for positron emission tomography (PET) that have been used to image inflammation in cardiovascular diseases and other inflammatory conditions with a special emphasis on radiotracers that have already been successfully applied in clinical settings.
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28
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Mayerhoefer ME, Raderer M, Lamm W, Pichler V, Pfaff S, Weber M, Kiesewetter B, Hacker M, Kazianka L, Staber PB, Wester HJ, Rohrbeck J, Simonitsch-Klupp I, Haug A. CXCR4 PET imaging of mantle cell lymphoma using [ 68Ga]Pentixafor: comparison with [ 18F]FDG-PET. Theranostics 2021; 11:567-578. [PMID: 33391493 PMCID: PMC7738870 DOI: 10.7150/thno.48620] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022] Open
Abstract
For PET imaging of mantle cell lymphoma (MCL), [18F]FDG (2-deoxy-2-[18F]fluoro-D-glucose) is the currently recommended radiotracer, although uptake is variable and bone marrow evaluation is limited. In this prospective study, we evaluated the novel CXCR4 (G-protein-coupled C-X-C chemokine receptor type 4) tracer [68Ga]Pentixafor in MCL patients, and compared it to [18F]FDG. Methods: MCL patients underwent [68Ga]Pentixafor-PET/MRI, and, if required for routine purposes, also [18F]FDG-PET/MRI, before treatment. PET was evaluated separately for 23 anatomic regions (12 lymph node stations and 11 organs/tissues), using MRI as the main reference standard. Standardized uptake values (SUVmax and SUVmean) and tumor-to-background ratios (TBRblood and TBRliver) were calculated. General Estimation Equations (GEE) were used to compare [68Ga]Pentixafor-PET and [18F]FDG-PET sensitivities and positive predictive values (PPV). For bone marrow involvement, where biopsy served as the main reference standard, and splenic involvement, receiver operating characteristic curves were used to determine the optimal SUV and TBR cut-off values, and areas under the curve (AUC) were calculated. Results: Twenty-two MCL patients were included. [68Ga]Pentixafor-PET sensitivity (100%) was significantly higher than for [18F]FDG-PET (75.2%) (P<0.001), and PPV was slightly, but not significantly lower (94.0%.vs. 96.5%; P=0.21). SUVs and TBRs were significantly higher for [68Ga]Pentixafor-PET than for [18F]FDG-PET (P<0.001 in all cases); the greatest difference was observed for mean TBRblood, with 4.9 for [68Ga]Pentixafor-PET and 2.0 for [18F]FDG-PET. For bone marrow involvement, [68Ga]Pentixafor-PET SUVmean showed an AUC of 0.92; and for splenic involvement, TBRblood showed an AUC of 0.81. Conclusion: [68Ga]Pentixafor-PET may become an alternative to [18F]FDG-PET in MCL patients, showing clearly higher detection rates and better tumor-to-background contrast.
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Affiliation(s)
- Marius E. Mayerhoefer
- Dept. of Biomedical Imaging and Image-guided Therapy, Division of General and Pediatric Radiology, Medical University of Vienna, Austria
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Markus Raderer
- Dept. of Internal Medicine I, Division of Oncology, Medical University of Vienna
| | - Wolfgang Lamm
- Dept. of Internal Medicine I, Division of Oncology, Medical University of Vienna
| | - Verena Pichler
- Dept. of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Austria
| | - Sarah Pfaff
- Dept. of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Austria
| | - Michael Weber
- Dept. of Biomedical Imaging and Image-guided Therapy, Division of General and Pediatric Radiology, Medical University of Vienna, Austria
| | - Barbara Kiesewetter
- Dept. of Internal Medicine I, Division of Oncology, Medical University of Vienna
| | - Markus Hacker
- Dept. of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Austria
| | - Lukas Kazianka
- Dept. of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna
| | - Philipp B. Staber
- Dept. of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna
| | - Hans-Juergen Wester
- Pharmaceutical Radiochemistry, Technical University of Munich, Garching, Germany
| | | | | | - Alexander Haug
- Dept. of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Austria
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Kwon D, Lozada J, Zhang Z, Zeisler J, Poon R, Zhang C, Roxin Á, Lin KS, Perrin D, Benard F. High-Contrast CXCR4-Targeted 18F-PET Imaging Using a Potent and Selective Antagonist. Mol Pharm 2020; 18:187-197. [PMID: 33253591 DOI: 10.1021/acs.molpharmaceut.0c00785] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
C-X-C chemokine receptor 4 (CXCR4) is highly expressed in cancers, contributing to proliferation, metastasis, and a poor prognosis. The noninvasive imaging of CXCR4 can enable the detection and characterization of aggressive cancers with poor outcomes. Currently, no 18F-labeled CXCR4 positron emission tomography (PET) radiotracer has demonstrated imaging contrast comparable to [68Ga]Ga-Pentixafor, a CXCR4-targeting radioligand. We, therefore, aimed to develop a high-contrast CXCR4-targeting radiotracer by incorporating a hydrophilic linker and trifluoroborate radioprosthesis to LY2510924, a known CXCR4 antagonist. A carboxy-ammoniomethyl-trifluoroborate (PepBF3) moiety was conjugated to the LY2510924-derived peptide possessing a triglutamate linker via amide bond formation to obtain BL08, whereas an alkyne ammoniomethyl-trifluoroborate (AMBF3) moiety was conjugated using the copper-catalyzed [3+2] cycloaddition click reaction to obtain BL09. BL08 and BL09 were radiolabeled with [18F]fluoride ion using 18F-19F isotope exchange. Pentixafor was radiolabeled with [68Ga]GaCl3. Side-by-side PET imaging and biodistribution studies were performed on immunocompromised mice bearing Daudi Burkitt lymphoma xenografts. The biodistribution of [18F]BL08 and [18F]BL09 showed tumor uptake at 2 h postinjection (p.i.) (5.67 ± 1.25%ID/g and 5.83 ± 0.92%ID/g, respectively), which were concordant with the results of PET imaging. [18F]BL08 had low background activity, providing tumor-to-blood, -muscle, and -liver ratios of 72 ± 20, 339 ± 81, and 14 ± 3 (2 h p.i.), respectively. [18F]BL09 behaved similarly, with ratios of 64 ± 20, 239 ± 72, and 17 ± 3 (2 h p.i.), respectively. This resulted in high-contrast visualization of tumors on PET imaging for both radiotracers. [18F]BL08 exhibited lower kidney uptake (2.2 ± 0.5%ID/g) compared to [18F]BL09 (7.6 ± 1.0%ID/g) at 2 h p.i. [18F]BL08 and [18F]BL09 demonstrated higher tumor-to-blood, -muscle, and -liver ratios compared to [68Ga]Ga-Pentixafor (18.9 ± 2.7, 95.4 ± 36.7, and 5.9 ± 0.7 at 2 h p.i., respectively). In conclusion, [18F]BL08 and [18F]BL09 enable high-contrast visualization of CXCR4 expression in Daudi xenografts. Based on high tumor-to-organ ratios, [18F]BL08 may prove a valuable new tool for CXCR4-targeted PET imaging with potential for translation. The use of a PepBF3 moiety is a new approach for the orthogonal conjugation of organotrifluoroborates for 18F-labeling of peptides.
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Affiliation(s)
- Daniel Kwon
- Department of Molecular Oncology, BC Cancer, Vancouver V5Z 1L3, Canada
| | - Jerome Lozada
- Department of Chemistry, University of British Columbia, Vancouver V6T 1Z1, Canada
| | - Zhengxing Zhang
- Department of Molecular Oncology, BC Cancer, Vancouver V5Z 1L3, Canada
| | - Jutta Zeisler
- Department of Molecular Oncology, BC Cancer, Vancouver V5Z 1L3, Canada
| | - Richel Poon
- Department of Chemistry, University of British Columbia, Vancouver V6T 1Z1, Canada
| | - Chengcheng Zhang
- Department of Molecular Oncology, BC Cancer, Vancouver V5Z 1L3, Canada
| | - Áron Roxin
- Department of Molecular Oncology, BC Cancer, Vancouver V5Z 1L3, Canada
| | - Kuo-Shyan Lin
- Department of Molecular Oncology, BC Cancer, Vancouver V5Z 1L3, Canada.,Department of Radiology, University of British Columbia, Vancouver V5Z 1M9, Canada
| | - David Perrin
- Department of Chemistry, University of British Columbia, Vancouver V6T 1Z1, Canada
| | - Francois Benard
- Department of Molecular Oncology, BC Cancer, Vancouver V5Z 1L3, Canada.,Department of Radiology, University of British Columbia, Vancouver V5Z 1M9, Canada
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30
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Chifu I, Heinze B, Fuss CT, Lang K, Kroiss M, Kircher S, Ronchi CL, Altieri B, Schirbel A, Fassnacht M, Hahner S. Impact of the Chemokine Receptors CXCR4 and CXCR7 on Clinical Outcome in Adrenocortical Carcinoma. Front Endocrinol (Lausanne) 2020; 11:597878. [PMID: 33281749 PMCID: PMC7691376 DOI: 10.3389/fendo.2020.597878] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 10/20/2020] [Indexed: 12/22/2022] Open
Abstract
Chemokine receptors have a negative impact on tumor progression in several human cancers and have therefore been of interest for molecular imaging and targeted therapy. However, their clinical and prognostic significance in adrenocortical carcinoma (ACC) is unknown. The aim of this study was to evaluate the chemokine receptor profile in ACC and to analyse its association with clinicopathological characteristics and clinical outcome. A chemokine receptor profile was initially evaluated by quantitative PCR in 4 normal adrenals, 18 ACC samples and human ACC cell line NCI-H295. High expression of CXCR4 and CXCR7 in both healthy and malignant adrenal tissue and ACC cells was confirmed. In the next step, we analyzed the expression and cellular localization of CXCR4 and CXCR7 in ACC by immunohistochemistry in 187 and 84 samples, respectively. These results were correlated with clinicopathological parameters and survival outcome. We detected strong membrane expression of CXCR4 and CXCR7 in 50% of ACC samples. Strong cytoplasmic CXCR4 staining was more frequent among samples derived from metastases compared to primaries (p=0.01) and local recurrences (p=0.04). CXCR4 membrane staining positively correlated with proliferation index Ki67 (r=0.17, p=0.028). CXCR7 membrane staining negatively correlated with Ki67 (r=-0.254, p=0.03) but positively with tumor size (r=0.3, p=0.02). No differences in progression-free or overall survival were observed between patients with strong and weak staining intensities for CXCR4 or CXCR7. Taken together, high expression of CXCR4 and CXCR7 in both local tumors and metastases suggests that some ACC patients might benefit from CXCR4/CXCR7-targeted therapy.
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Affiliation(s)
- Irina Chifu
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
| | - Britta Heinze
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
- *Correspondence: Britta Heinze,
| | - Carmina T. Fuss
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
| | - Katharina Lang
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, United Kingdom
| | - Matthias Kroiss
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
- Comprehensive Cancer Center Mainfranken, University of Wuerzburg, Wuerzburg, Germany
| | - Stefan Kircher
- Institute of Pathology, Interdisciplinary Bank of Biomaterials and Data (ibdw), University of Wuerzburg, Wuerzburg, Germany
| | - Cristina L. Ronchi
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, United Kingdom
| | - Barbara Altieri
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
| | - Andreas Schirbel
- Comprehensive Cancer Center Mainfranken, University of Wuerzburg, Wuerzburg, Germany
- Department of Nuclear Medicine, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
| | - Martin Fassnacht
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
- Comprehensive Cancer Center Mainfranken, University of Wuerzburg, Wuerzburg, Germany
| | - Stefanie Hahner
- Division of Endocrinology and Diabetes, Department of Medicine I, University Hospital of Wuerzburg, University of Wuerzburg, Wuerzburg, Germany
- Comprehensive Cancer Center Mainfranken, University of Wuerzburg, Wuerzburg, Germany
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