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Vieira LS, Zhang Y, López Quiñones AJ, Hu T, Singh DK, Stevens J, Prasad B, Park JR, Wang J. The Plasma Membrane Monoamine Transporter is Highly Expressed in Neuroblastoma and Functions as an mIBG Transporter. J Pharmacol Exp Ther 2023; 387:239-248. [PMID: 37541765 PMCID: PMC10658915 DOI: 10.1124/jpet.123.001672] [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: 03/30/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 08/06/2023] Open
Abstract
Neuroblastoma (NB) is a pediatric cancer with low survival rates in high-risk patients. 131I-mIBG has emerged as a promising therapy for high-risk NB and kills tumor cells by radiation. Consequently, 131I-mIBG tumor uptake and retention are major determinants for its therapeutic efficacy. mIBG enters NB cells through the norepinephrine transporter (NET), and accumulates in mitochondria through unknown mechanisms. Here we evaluated the expression of monoamine and organic cation transporters in high-risk NB tumors and explored their relationship with MYCN amplification and patient survival. We found that NB mainly expresses NET, the plasma membrane monoamine transporter (PMAT), and the vesicular membrane monoamine transporter 1/2 (VMAT1/2), and that the expression of these transporters is significantly reduced in MYCN-amplified tumor samples. PMAT expression is the highest and correlates with overall survival in high-risk NB patients without MYCN amplification. Immunostaining showed that PMAT resides intracellularly in NB cells and co-localizes with mitochondria. Using cells expressing PMAT, mIBG was identified as a PMAT substrate. In mitochondria isolated from NB cell lines, mIBG uptake was reduced by ∼50% by a PMAT inhibitor. Together, our data suggest that PMAT is a previously unrecognized transporter highly expressed in NB and could impact intracellular transport and therapeutic response to 131I-mIBG. SIGNIFICANCE STATEMENT: This study identified that plasma membrane monoamine transporter (PMAT) is a novel transporter highly expressed in neuroblastoma and its expression level is associated with overall survival rate in high-risk patients without MYCN amplification. PMAT is expressed intracellularly in neuroblastoma cells, transports meta-iodobenzylguanidine (mIBG) and thus could impact tumor retention and response to 131I-mIBG therapy. These findings have important clinical implications as PMAT could represent a novel molecular marker to help inform disease prognosis and predict response to 131I-mIBG therapy.
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Affiliation(s)
- Letícia Salvador Vieira
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Yuchen Zhang
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Antonio J López Quiñones
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Tao Hu
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Dilip Kumar Singh
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Jeffrey Stevens
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Bhagwat Prasad
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Julie R Park
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
| | - Joanne Wang
- Department of Pharmaceutics, University of Washington, Seattle, Washington (L.S.V., Y.Z., A.J.L.Q., T.H., J.W.); Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (D.K.S., B.P.); and Seattle Children's Hospital, Seattle, Washington (J.S., J.R.P.)
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Sevrin F, Kolesnikov-Gauthier H, Cougnenc O, Bogart E, Schleiermacher G, Courbon F, Gambart M, Giraudet AL, Corradini N, Badel JN, Rault E, Oudoux A, Deley MCL, Valteau-Couanet D, Defachelles AS. Phase II study of 131 I-metaiodobenzylguanidine with 5 days of topotecan for refractory or relapsed neuroblastoma: Results of the French study MIITOP. Pediatr Blood Cancer 2023; 70:e30615. [PMID: 37574821 DOI: 10.1002/pbc.30615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/05/2023] [Accepted: 07/21/2023] [Indexed: 08/15/2023]
Abstract
PURPOSE We report the results of the French multicentric phase II study MIITOP (NCT00960739), which evaluated tandem infusions of 131 I-metaiodobenzylguanidine (mIBG) and topotecan in children with relapsed/refractory metastatic neuroblastoma (NBL). METHODS Patients received 131 I-mIBG on day 1, with intravenous topotecan daily on days 1-5. A second activity of 131 I-mIBG was given on day 21 to deliver a whole-body radiation dose of 4 Gy, combined with a second course of topotecan on days 21-25. Peripheral blood stem cells were infused on day 31. RESULTS Thirty patients were enrolled from November 2008 to June 2015. Median age at diagnosis was 5.5 years (2-20). Twenty-one had very high-risk NBL (VHR-NBL), that is, stage 4 NBL at diagnosis or at relapse, with insufficient response (i.e., less than a partial response of metastases and more than three mIBG spots) after induction chemotherapy; nine had progressive metastatic relapse. Median Curie score at inclusion was 6 (1-26). Median number of prior lines of treatment was 3 (1-7). Objective response rate was 13% (95% confidence interval [CI]: 4-31) for the whole population, 19% for VHR-NBL, and 0% for progressive relapses. Immediate tolerance was good, with nonhematologic toxicity limited to grade-2 nausea/vomiting in eight patients. Two-year event-free survival was 17% (95% CI: 6-32). Among the 16 patients with VHR-NBL who had not received prior myeloablative busulfan-melphalan consolidation, 13 had at least stable disease after MIITOP; 11 subsequently received busulfan-melphalan; four of them were alive (median follow-up: 7 years). CONCLUSION MIITOP showed acceptable tolerability in this heavily pretreated population and encouraging survival rates in VHR-NBL when followed by busulfan-melphalan.
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Affiliation(s)
- François Sevrin
- Department of Pediatric Oncology, Oscar Lambret Center, Lille, France
| | | | - Olivier Cougnenc
- Department of Clinical Pharmacy, Oscar Lambret Center, Lille, France
| | - Emilie Bogart
- Department of Methodology and Biostatistics, Oscar Lambret Center, Lille, France
| | | | - Frederic Courbon
- Service de Médecine Nucléaire, Institut Universitaire du Cancer de Toulouse Oncopole, Toulouse, France
| | - Marion Gambart
- Hematology and Oncology Unit, Children's Hospital, CHU Toulouse, Toulouse, France
| | | | - Nadège Corradini
- Institute of Pediatric Hematology and Oncology, Léon Bérard Center, Lyon, France
| | - Jean-Noël Badel
- Department of Nuclear Medicine, Léon Bérard Center, Lyon, France
| | - Erwann Rault
- Department of Medical Physics, Oscar Lambret Center, Lille, France
| | - Aurore Oudoux
- Department of Nuclear Medicine, Oscar Lambret Center, Lille, France
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Camacho-Hernandez GA, Jahan K, Newman AH. Illuminating the monoamine transporters: Fluorescently labelled ligands to study dopamine, serotonin and norepinephrine transporters. Basic Clin Pharmacol Toxicol 2023; 133:473-484. [PMID: 36527444 DOI: 10.1111/bcpt.13827] [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: 10/11/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
Fluorescence microscopy has revolutionized the visualization of physiological processes in live-cell systems. With the recent innovations in super resolution microscopy, these events can be examined with high precision and accuracy. The development of fluorescently labelled small molecules has provided a significant advance in understanding the physiological relevance of targeted proteins that can now be visualized at the cellular level. One set of physiologically important target proteins are the monoamine transporters (MATs) that play an instrumental role in maintaining monoamine signalling homeostasis. Understanding the mechanisms underlying their regulation and dysregulation is fundamental to treating several neuropsychiatric conditions such as attention deficit hyperactivity disorder (ADHD), anxiety, depression and substance use disorders. Herein, we describe the rationale behind the small molecule design of fluorescently labelled ligands (FLL) either as MAT substrates or inhibitors as well as their applications to advance our understanding of this class of transporters in health and disease.
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Affiliation(s)
- Gisela Andrea Camacho-Hernandez
- Medicinal Chemistry Section, Molecular Targets and Medications Discovery Branch, National Institutes on Drug Abuse - Intramural Research Program, Baltimore, Maryland, USA
| | - Khorshada Jahan
- Medicinal Chemistry Section, Molecular Targets and Medications Discovery Branch, National Institutes on Drug Abuse - Intramural Research Program, Baltimore, Maryland, USA
| | - Amy Hauck Newman
- Medicinal Chemistry Section, Molecular Targets and Medications Discovery Branch, National Institutes on Drug Abuse - Intramural Research Program, Baltimore, Maryland, USA
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Mastrangelo S, Romano A, Attinà G, Maurizi P, Ruggiero A. Timing and chemotherapy association for 131-I-MIBG treatment in high-risk neuroblastoma. Biochem Pharmacol 2023; 216:115802. [PMID: 37696454 DOI: 10.1016/j.bcp.2023.115802] [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: 07/01/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 09/13/2023]
Abstract
Prognosis of high-risk neuroblastoma is dismal, despite intensive induction chemotherapy, surgery, high-dose chemotherapy, radiotherapy, and maintenance. Patients who do not achieve a complete metastatic response, with clearance of bone marrow and skeletal NB infiltration, after induction have a significantly lowersurvival rate. Thus, it's necessary to further intensifytreatment during this phase. 131-I-metaiodobenzylguanidine (131-I-MIBG) is a radioactive compound highly effective against neuroblastoma, with32% response rate in relapsed/resistant cases, and only hematological toxicity. 131-I-MIBG wasutilized at different doses in single or multiple administrations, before autologous transplant or combinedwith high-dose chemotherapy. Subsequently, it was added to consolidationin patients with advanced NB after induction, but an independent contribution against neuroblastoma and for myelotoxicity is difficult to determine. Despiteresults of a 2008 paper demonstratedefficacy and mild hematological toxicity of 131-I-MIBG at diagnosis, no center had included it with intensive chemotherapy in first-line treatment protocols. In our institution, at diagnosis, 131-I-MIBG was included in a 5-chemotherapy drug combination and administered on day-10, at doses up to 18.3 mCi/kg. Almost 87% of objective responses were observed 50 days from start with acceptable hematological toxicity. In this paper, we review the literature data regarding 131-I-MIBG treatment for neuroblastoma, and report on doses and combinations used, tumor responses and toxicity. 131-I-MIBG is very effective against neuroblastoma, in particular if given to patients at diagnosis and in combination with chemotherapy, and it should be included in all induction regimens to improve early responses rates and consequently long-term survival.
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Affiliation(s)
- Stefano Mastrangelo
- Pediatric Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Gemelli, 8, 00168 Rome, Italy; Università Cattolica del Sacro Cuore, Largo Gemelli, 8, 00168 Rome, Italy.
| | - Alberto Romano
- Pediatric Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Gemelli, 8, 00168 Rome, Italy
| | - Giorgio Attinà
- Pediatric Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Gemelli, 8, 00168 Rome, Italy
| | - Palma Maurizi
- Pediatric Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Gemelli, 8, 00168 Rome, Italy; Università Cattolica del Sacro Cuore, Largo Gemelli, 8, 00168 Rome, Italy
| | - Antonio Ruggiero
- Pediatric Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Gemelli, 8, 00168 Rome, Italy; Università Cattolica del Sacro Cuore, Largo Gemelli, 8, 00168 Rome, Italy
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Tsang YP, López Quiñones AJ, Vieira LS, Wang J. Interaction of ALK Inhibitors with Polyspecific Organic Cation Transporters and the Impact of Substrate-Dependent Inhibition on the Prediction of Drug-Drug Interactions. Pharmaceutics 2023; 15:2312. [PMID: 37765282 PMCID: PMC10534724 DOI: 10.3390/pharmaceutics15092312] [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: 08/05/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Small molecules targeting aberrant anaplastic lymphoma kinase (ALK) are active against ALK-positive non-small-cell lung cancers and neuroblastoma. Several targeted tyrosine kinase inhibitors (TKIs) have been shown to interact with polyspecific organic cation transporters (pOCTs), raising concerns about potential drug-drug interactions (DDIs). The purpose of this study was to assess the interaction of ALK inhibitors with pOCTs and the impact of substrate-dependent inhibition on the prediction of DDIs. Inhibition assays were conducted in transporter-overexpressing cells using meta-iodobenzylguanidine (mIBG), metformin, or 1-methyl-4-phenylpyridinium (MPP+) as the substrate. The half-maximal inhibitory concentrations (IC50) of brigatinib and crizotinib for the substrates tested were used to predict their potential for in vivo transporter mediated DDIs. Here, we show that the inhibition potencies of brigatinib and crizotinib on pOCTs are isoform- and substrate-dependent. Human OCT3 (hOCT3) and multidrug and toxin extrusion protein 1 (hMATE1) were highly sensitive to inhibition by brigatinib and crizotinib for all three tested substrates. Apart from hMATE1, substrate-dependent inhibition was observed for all other transporters with varying degrees of dependency; hOCT1 inhibition showed the greatest substrate dependency, with differences in IC50 values of up to 22-fold across the tested substrates, followed by hOCT2 and hMATE2-K, with differences in IC50 values of up to 16- and 12-fold, respectively. Conversely, hOCT3 inhibition only showed a moderate substrate dependency (IC50 variance < 4.8). Among the substrates used, metformin was consistently shown to be the most sensitive substrate, followed by mIBG and MPP+. Pre-incubation of ALK inhibitors had little impact on their potencies toward hOCT2 and hMATE1. Our results underscore the complexity of the interactions between substrates and the inhibitors of pOCTs and have important implications for the clinical use of ALK inhibitors and their DDI predictions.
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Affiliation(s)
| | | | | | - Joanne Wang
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA; (Y.P.T.); (A.J.L.Q.); (L.S.V.)
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Grand-Guillaume J, Mansi R, Gaonkar RH, Zanger S, Fani M, Eugster PJ, Beck Popovic M, Grouzmann E, Abid K. CUDC-907, a dual PI3K/histone deacetylase inhibitor, increases meta-iodobenzylguanidine uptake ( 123/131I-mIBG) in vitro and in vivo: a promising candidate for advancing theranostics in neuroendocrine tumors. J Transl Med 2023; 21:604. [PMID: 37679770 PMCID: PMC10485979 DOI: 10.1186/s12967-023-04466-z] [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: 04/24/2023] [Accepted: 08/22/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND Neuroblastoma (NB) and pheochromocytoma/paraganglioma (PHEO/PGL) are neuroendocrine tumors. Imaging of these neoplasms is performed by scintigraphy after injection of radiolabeled meta-iodobenzylguanidine (mIBG), a norepinephrine analog taken up by tumoral cells through monoamine transporters. The pharmacological induction of these transporters is a promising approach to improve the imaging and therapy (theranostics) of these tumors. METHODS Transporters involved in mIBG internalization were identified by using transfected Human Embryonic Kidney (HEK) cells. Histone deacetylase inhibitors (HDACi) and inhibitors of the PI3K/AKT/mTOR pathway were tested in cell lines to study their effect on mIBG internalization. Studies in xenografted mice were performed to assess the effect of the most promising HDACi on 123I-mIBG uptake. RESULTS Transfected HEK cells demonstrated that the norepinephrine and dopamine transporter (NET and DAT) avidly internalizes mIBG. Sodium-4-phenylbutyrate (an HDACi), CUDC-907 (a dual HDACi and PI3K inhibitor), BGT226 (a PI3K inhibitor) and VS-5584 and rapamycin (two inhibitors of mTOR) increased mIBG internalization in a neuroblastoma cell line (IGR-NB8) by 2.9-, 2.1-, 2.5-, 1.5- and 1.3-fold, respectively, compared with untreated cells. CUDC-907 also increased mIBG internalization in two other NB cell lines and in one PHEO cell line. We demonstrated that mIBG internalization occurs primarily through the NET. In xenografted mice with IGR-NB8 cells, oral treatment with 5 mg/kg of CUDC-907 increased the tumor uptake of 123I-mIBG by 2.3- and 1.9-fold at 4 and 24 h post-injection, respectively, compared to the untreated group. CONCLUSIONS Upregulation of the NET by CUDC-907 lead to a better internalization of mIBG in vitro and in vivo.
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Affiliation(s)
- Joana Grand-Guillaume
- Catecholamine and Peptides Laboratory, Service of Clinical Pharmacology and Toxicology, Lausanne University Hospital and University of Lausanne, 1011, Lausanne, Switzerland
| | - Rosalba Mansi
- Division of Radiopharmaceutical Chemistry, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, 4031, Basel, Switzerland
| | - Raghuvir H Gaonkar
- Division of Radiopharmaceutical Chemistry, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, 4031, Basel, Switzerland
| | - Sandra Zanger
- Division of Radiopharmaceutical Chemistry, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, 4031, Basel, Switzerland
| | - Melpomeni Fani
- Division of Radiopharmaceutical Chemistry, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, 4031, Basel, Switzerland
| | - Philippe J Eugster
- Catecholamine and Peptides Laboratory, Service of Clinical Pharmacology and Toxicology, Lausanne University Hospital and University of Lausanne, 1011, Lausanne, Switzerland
| | - Maja Beck Popovic
- Pediatric Hematology-Oncology Unit, Woman-Mother-Child Department, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Eric Grouzmann
- Catecholamine and Peptides Laboratory, Service of Clinical Pharmacology and Toxicology, Lausanne University Hospital and University of Lausanne, 1011, Lausanne, Switzerland
| | - Karim Abid
- Catecholamine and Peptides Laboratory, Service of Clinical Pharmacology and Toxicology, Lausanne University Hospital and University of Lausanne, 1011, Lausanne, Switzerland.
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[ 18F] MFBG PET imaging: biodistribution, pharmacokinetics, and comparison with [ 123I] MIBG in neural crest tumour patients. Eur J Nucl Med Mol Imaging 2023; 50:1134-1145. [PMID: 36435928 DOI: 10.1007/s00259-022-06046-7] [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: 08/09/2022] [Accepted: 11/13/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Despite its limitations, [123I]MIBG scintigraphy has been the standard for human norepinephrine transporter (hNET) imaging for several decades. Recently, [18F]MFBG has emerged as a promising PET alternative. This prospective trial aimed to evaluate safety, biodistribution, tumour lesion pharmacokinetics, and lesion targeting of [18F]MFBG and perform a head-to-head comparison with [123I]MIBG in neural crest tumour patients. METHODS Six neural crest tumour patients (4 phaeochromocytoma, 1 paraganglioma, 1 neuroblastoma) with a recent routine clinical [123I]MIBG scintigraphy (interval: - 37-75 days) were included. Adult patients (n = 5) underwent a 30-min dynamic PET, followed by 3 whole-body PET/CT scans at 60, 120, and 180 min after injection of 4 MBq/kg [18F]MFBG. One minor participant underwent a single whole-body PET/CT at 60 min after administration of 2 MBq/kg [18F]MFBG. Normal organ uptake (SUVmean) and lesion uptake (SUVmax; tumour-to-background ratio (TBR)) were measured. Regional distribution volumes (VT) were estimated using a Logan graphical analysis in up to 6 lesions per patient. A lesion-by-lesion analysis was performed to compare detection ratios (DR), i.e. fraction of detected lesions, between [18F]MFBG and [123I]MIBG. RESULTS [18F]MFBG was safe and well tolerated. Its biodistribution was overall similar to that of [123I]MIBG, with prominent uptake in the salivary glands, liver, left ventricle wall and adrenals, and mainly urinary excretion. In the phaeochromocytoma subgroup, the median VT was 37.4 mL/cm3 (range: 18.0-144.8) with an excellent correlation between VT and SUVmean at all 3 time points (R2: 0.92-0.94). Mean lesion SUVmax and TBR at 1 h after injection were 19.3 ± 10.7 and 23.6 ± 8.4, respectively. All lesions detected with [123I]MIBG were also observed with [18F]MFBG. The mean DR with [123I]MIBG was significantly lower than with [18F]MFBG (61.0% ± 26.7% vs. 99.8% ± 0.5% at 1 h; p = 0.043). CONCLUSION [18F]MFBG is a promising hNET imaging agent with favourable imaging characteristics and improved lesion targeting compared with [123I]MIBG scintigraphy. TRIAL REGISTRATION Clinicaltrials.gov : NCT04258592 (Registered: 06 February 2020), EudraCT: 2019-003872-37A.
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Batra V, Samanta M, Makvandi M, Groff D, Martorano P, Elias J, Ranieri P, Tsang M, Hou C, Li Y, Pawel B, Martinez D, Vaidyanathan G, Carlin S, Pryma DA, Maris JM. Preclinical Development of [211At]meta- astatobenzylguanidine ([211At]MABG) as an Alpha Particle Radiopharmaceutical Therapy for Neuroblastoma. Clin Cancer Res 2022; 28:4146-4157. [PMID: 35861867 PMCID: PMC9475242 DOI: 10.1158/1078-0432.ccr-22-0400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/09/2022] [Accepted: 07/19/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE [131I]meta-iodobenzylguanidine ([131I]MIBG) is a targeted radiotherapeutic administered systemically to deliver beta particle radiation in neuroblastoma. However, relapses in the bone marrow are common. [211At]meta-astatobenzylguanidine ([211At] MABG) is an alpha particle emitter with higher biological effectiveness and short path length which effectively sterilizes microscopic residual disease. Here we investigated the safety and antitumor activity [211At]MABG in preclinical models of neuroblastoma. EXPERIMENTAL DESIGN We defined the maximum tolerated dose (MTD), biodistribution, and toxicity of [211At]MABG in immunodeficient mice in comparison with [131I]MIBG. We compared the antitumor efficacy of [211At]MABG with [131I]MIBG in three murine xenograft models. Finally, we explored the efficacy of [211At]MABG after tail vein xenografting designed to model disseminated neuroblastoma. RESULTS The MTD of [211At]MABG was 66.7 MBq/kg (1.8 mCi/kg) in CB17SC scid-/- mice and 51.8 MBq/kg (1.4 mCi/kg) in NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ (NSG) mice. Biodistribution of [211At]MABG was similar to [131I]MIBG. Long-term toxicity studies on mice administered with doses up to 41.5 MBq/kg (1.12 mCi/kg) showed the radiotherapeutic to be well tolerated. Both 66.7 MBq/kg (1.8 mCi/kg) single dose and fractionated dosing 16.6 MBq/kg/fraction (0.45 mCi/kg) × 4 over 11 days induced marked tumor regression in two of the three models studied. Survival was significantly prolonged for mice treated with 12.9 MBq/kg/fraction (0.35 mCi/kg) × 4 doses over 11 days [211At]MABG in the disseminated disease (IMR-05NET/GFP/LUC) model (P = 0.003) suggesting eradication of microscopic disease. CONCLUSIONS [211At]MABG has significant survival advantage in disseminated models of neuroblastoma. An alpha particle emitting radiopharmaceutical may be effective against microscopic disseminated disease, warranting clinical development.
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Affiliation(s)
- Vandana Batra
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Minu Samanta
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Mehran Makvandi
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - David Groff
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Paul Martorano
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jimmy Elias
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Pietro Ranieri
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Matthew Tsang
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Catherine Hou
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Yimei Li
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Bruce Pawel
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles and Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Daniel Martinez
- Division of Anatomic Pathology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | | | - Sean Carlin
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Daniel A. Pryma
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - John M. Maris
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Corresponding Author: John M. Maris, Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, 3501 Civic Center Boulevard, Philadelphia, PA 19104. Phone: 215-590-5242; E-mail:
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Abstract
In recent years, cancer care has been transformed by immune-based and targeted treatments. Although these treatments are effective against various solid organ malignancies, multiple adverse effects can occur, including thyroid dysfunction. In this review, the authors consider treatments for solid organ cancers that affect the thyroid, focusing on immune checkpoint inhibitors, kinase inhibitors, and radioactive iodine-conjugated treatments (I-131-metaiodobenzylguanidine). They discuss the mechanisms causing thyroid dysfunction, provide a framework for their diagnosis and management, and explore the association of thyroid dysfunction from these agents with patient survival.
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Affiliation(s)
- Anupam Kotwal
- Division of Diabetes, Endocrinology and Metabolism, Department of Internal Medicine, University of Nebraska Medical Center, 984120 Nebraska Medical Center, Omaha, NE 68198, USA. https://twitter.com/DrAKotwal
| | - Donald S A McLeod
- Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Butterfield Street, Herston, Queensland 4029, Australia; Population Health Department, QIMR Berghofer Medical Research Institute, Locked Bag 2000, Royal Brisbane Hospital, Queensland 4029, Australia.
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10
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Lopez Quiñones AJ, Vieira LS, Wang J. Clinical Applications and the Roles of Transporters in Disposition, Tumor Targeting, and Tissue Toxicity of meta-Iodobenzylguanidine (mIBG). Drug Metab Dispos 2022; 50:DMD-MR-2021-000707. [PMID: 35197314 PMCID: PMC9488973 DOI: 10.1124/dmd.121.000707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/01/2022] [Accepted: 02/17/2022] [Indexed: 11/22/2022] Open
Abstract
Transporters on the plasma membrane of tumor cells are promising molecular "Trojan horses" to deliver drugs and imaging agents into cancer cells. Radioiodine-labeled meta-iodobenzylguanidine (mIBG) is used as a diagnostic agent (123I-mIBG) and a targeted radiotherapy (131I-mIBG) for neuroendocrine cancers. mIBG enters cancer cells through the norepinephrine transporter (NET) where the radioactive decay of 131I causes DNA damage, cell death, and tumor necrosis. mIBG is predominantly eliminated unchanged by the kidney. Despite its selective uptake by neuroendocrine tumors, mIBG accumulates in several normal tissues and leads to tissue-specific radiation toxicities. Emerging evidences suggest that the polyspecific organic cation transporters play important roles in systemic disposition and tissue-specific uptake of mIBG. In particular, human organic cation transporter 2 (hOCT2) and toxin extrusion proteins 1 and 2-K (hMATE1/2-K) likely mediate renal secretion of mIBG whereas hOCT1 and hOCT3 may contribute to mIBG uptake into normal tissues such as the liver, salivary glands, and heart. This mini-review focuses on the clinical applications of mIBG in neuroendocrine cancers and the differential roles of NET, OCT and MATE transporters in mIBG disposition, response and toxicity. Understanding the molecular mechanisms governing mIBG transport in cancer and normal cells is a critical step for developing strategies to optimize the efficacy of 131I-mIBG while minimizing toxicity in normal tissues. Significance Statement Radiolabeled mIBG has been used as a diagnostic tool and as radiotherapy for neuroendocrine cancers and other diseases. NET, OCT and MATE transporters play differential roles in mIBG tumor targeting, systemic elimination, and accumulation in normal tissues. The clinical use of mIBG as a radiopharmaceutical in cancer diagnosis and treatment can be further improved by taking a holistic approach considering mIBG transporters in both cancer and normal tissues.
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Affiliation(s)
| | | | - Joanne Wang
- Dept. of Pharmaceutics, University of Washington, United States
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11
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Rufini V, Triumbari EKA, Garganese MC. Imaging adrenal medulla. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00014-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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12
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Li X, Shi S, Zhou H, Zhao Z, Lu J. Novel [ 18F]-Labeled Meta-Bromobenzylguanidine Derivatives: Potential Positron Emission Tomography Imaging Probes for the Norepinephrine Transporter. Mol Pharm 2021; 18:3811-3819. [PMID: 34519204 DOI: 10.1021/acs.molpharmaceut.1c00429] [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: 11/28/2022]
Abstract
To develop novel norepinephrine transporter (NET)-targeting positron emission tomography (PET) probes with optimal pharmacokinetic properties, a series of meta-bromobenzylguanidine derivatives was synthesized. 4-Fluorodiethoxyethane-3-bromobenzylguanidine (compound 12) showed relatively good affinity for the NET (IC50 = 1.00 ± 0.04 μM). The corresponding radiotracer 18F-12 was prepared in high radiochemical purity (>98%) via a three-step method. The in vitro cellular uptake results demonstrated that 18F-12 was specifically taken up by NET-expressing SK-N-SH cells by the uptake-1 mechanism. Biodistribution studies in mice showed that 18F-12 exhibited high cardiac uptake (10.45 ± 0.66 %ID/g at 5 min p.i. and 6.44 ± 0.40 %ID/g at 120 min p.i.), faster liver clearance, and a lower dose of absorbed radiation than [123I]-labeled meta-iodobenzylguanidine ([123I]MIBG). Small animal PET imaging confirmed the high heart-to-background ratio of 18F-12 and the uptake-1 mechanism specific for the NET in rats, indicating its potential as a promising PET radiotracer for cardiac sympathetic nerve imaging.
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Affiliation(s)
- Xiaoyan Li
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
- Department of Isotopes, China Institute of Atomic Energy, Beijing 102413, P. R. China
| | - Shuyu Shi
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Hang Zhou
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Zuoquan Zhao
- Department of Nuclear Medicine, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, P. R. China
| | - Jie Lu
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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13
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López Quiñones AJ, Shireman LM, Wang J. Development and validation of a LC-MS/MS method for in vivo quantification of meta-iodobenzylguanidine (mIBG). J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1181:122927. [PMID: 34530306 DOI: 10.1016/j.jchromb.2021.122927] [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: 04/29/2021] [Revised: 08/03/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
meta-iodobenzylguanidine (mIBG) is a radiopharmaceutical used for the diagnosis and treatment of neuroendocrine cancers. Previous quantification of mIBG in biodistribution and pharmacokinetic studies mainly relied on the use of radiolabeled mIBG, which involves the handling of highly radioactive materials. The goal of this study was to develop a nonradioactive analytical method for quantifying mIBG in mouse plasma and tissue homogenates using high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS). Samples were prepared for analysis using a protein precipitation method. Mass spectrometry analysis was performed using 4-hydroxyphenformin as the internal standard, and the mass-to-charge transitions were 276.1 → 217.0 for mIBG and 222.1 → 121.0 for 4-hydroxyphenformin. The quantification limit of mIBG was 0.98 ng/mL, and the method was linear up to 500 ng/mL. The accuracy, inter-day and intra-day precision were 96-112%, 5.5-14.4%, and 3.7-14.1%, respectively, suggesting that the method was accurate and precise in quantifying mIBG at multiple concentrations in mouse plasma and liver homogenates. The extraction recovery was 96-106% and the matrix effect was 95-110%, indicating that the method was reproducible in quantifying mIBG with minimal impact from the biological matrices. In summary, we have developed and validated a fast, high-throughput quantification method of non-radiolabeled mIBG using LC-MS/MS. This method is reproducible, accurate, and precise, and can be used to quantify mIBG in plasma and tissue matrices to determine the pharmacokinetics and biodistribution of mIBG in preclinical animal models.
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Affiliation(s)
| | - Laura M Shireman
- Department of Pharmaceutics, University of Washington, Seattle WA 98195, United States
| | - Joanne Wang
- Department of Pharmaceutics, University of Washington, Seattle WA 98195, United States.
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14
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Blom T, Meinsma R, di Summa F, van den Akker E, van Kuilenburg ABP, Hansen M, Tytgat GAM. Thrombocytopenia after meta-iodobenzylguanidine (MIBG) therapy in neuroblastoma patients may be caused by selective MIBG uptake via the serotonin transporter located on megakaryocytes. EJNMMI Res 2021; 11:81. [PMID: 34424429 PMCID: PMC8382772 DOI: 10.1186/s13550-021-00823-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/11/2021] [Indexed: 11/10/2022] Open
Abstract
Background The therapeutic use of [131I]meta-iodobenzylguanidine ([131I]MIBG) is often accompanied by hematological toxicity, primarily consisting of severe and persistent thrombocytopenia. We hypothesize that this is caused by selective uptake of MIBG via the serotonin transporter (SERT) located on platelets and megakaryocytes. In this study, we have investigated whether in vitro cultured human megakaryocytes are capable of selective plasma membrane transport of MIBG and whether pharmacological intervention with selective serotonin reuptake inhibitors (SSRIs) may prevent this radiotoxic MIBG uptake. Methods Peripheral blood CD34+ cells were differentiated to human megakaryocytic cells using a standardized culture protocol. Prior to [3H]serotonin and [125I]MIBG uptake experiments, the differentiation status of megakaryocyte cultures was assessed by flow cytometry. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to assess SERT and NET (norepinephrine transporter) mRNA expression. On day 10 of differentiation, [3H]serotonin and [125I]MIBG uptake assays were conducted. Part of the samples were co-incubated with the SSRI citalopram to assess SERT-specific uptake. HEK293 cells transfected with SERT, NET, and empty vector served as controls. Results In vitro cultured human megakaryocytes are capable of selective plasma membrane transport of MIBG. After 10 days of differentiation, megakaryocytic cell culture batches from three different hematopoietic stem and progenitor cell donors showed on average 9.2 ± 2.4 nmol of MIBG uptake per milligram protein per hour after incubation with 10–7 M MIBG (range: 6.6 ± 1.0 to 11.2 ± 1.0 nmol/mg/h). Co-incubation with the SSRI citalopram led to a significant reduction (30.1%—41.5%) in MIBG uptake, implying SERT-specific uptake of MIBG. A strong correlation between the number of mature megakaryocytes and SERT-specific MIBG uptake was observed. Conclusion Our study demonstrates that human megakaryocytes cultured in vitro are capable of MIBG uptake. Moreover, the SSRI citalopram selectively inhibits MIBG uptake via the serotonin transporter. The concomitant administration of citalopram to neuroblastoma patients during [131I]MIBG therapy might be a promising strategy to prevent the onset of thrombocytopenia. Supplementary Information The online version contains supplementary material available at 10.1186/s13550-021-00823-5.
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Affiliation(s)
- Thomas Blom
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands. .,Department of Clinical Chemistry, Cancer Center Amsterdam, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Rutger Meinsma
- Department of Clinical Chemistry, Cancer Center Amsterdam, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Franca di Summa
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam University Medical Centers, University of Amsterdam, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
| | - Emile van den Akker
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam University Medical Centers, University of Amsterdam, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
| | - André B P van Kuilenburg
- Department of Clinical Chemistry, Cancer Center Amsterdam, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Marten Hansen
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam University Medical Centers, University of Amsterdam, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
| | - Godelieve A M Tytgat
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands
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15
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Lopes-Santos G, Bernabé DG, Miyahara GI, Tjioe KC. Beta-adrenergic pathway activation enhances aggressiveness and inhibits stemness in head and neck cancer. Transl Oncol 2021; 14:101117. [PMID: 33993095 PMCID: PMC8236611 DOI: 10.1016/j.tranon.2021.101117] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic stress leads to the activation of the beta-adrenergic pathway. Its activation has been implicated in the progression of different types of cancer but its role on head and neck squamous cell carcinomas (HNSCCs) remains undefined. The aim of this study was to investigate the influence of the beta-adrenergic pathway activation in the progression of HNSCCs and offer a panel of potential treatments for patients with the active beta-adrenergic pathway. Five hundred and twenty TCGA patients with primary HNSCCs were divided in two groups: ADRB2low / SLC6A2low and ADRB2high / SLC6A2high. Differentially expressed genes (DEGs) were identified through differential expression analysis. The association of clinicopathological and genomic features between the groups was analyzed using a bioinformatic approach. Potential drugs for treatment of HNSCC were identified based on the DEGs. There was association between ADRB2 and SLC6A2 expressions with age, race, tumor site, histologic grade, perineural invasion, and HPV p16 status. It was identified 898 DEGs between the groups. High ADRB2/SLC6A2 expression stimulated HNSCC proliferation, adhesion, invasion, and angiogenesis. On the other hand, genes related to cell stemness were downregulated in patients with activation of the beta- adrenergic pathway. Finally, 56 FDA-approved antineoplastic and immunotherapeutic drugs were identified as potential targets for the personalized treatment.
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Affiliation(s)
- Gabriela Lopes-Santos
- Oral Oncology Center, São Paulo State University (Unesp), School of Dentistry, 1193 José Bonifácio St., SP 16015-050, Araçatuba, São Paulo, Brazil.
| | - Daniel Galera Bernabé
- Oral Oncology Center, São Paulo State University (Unesp), School of Dentistry, 1193 José Bonifácio St., SP 16015-050, Araçatuba, São Paulo, Brazil; Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, São Paulo State University (Unesp), School of Dentistry, 1193 José Bonifácio St, SP 15050-015, Araçatuba, São Paulo, Brazil.
| | - Glauco Issamu Miyahara
- Oral Oncology Center, São Paulo State University (Unesp), School of Dentistry, 1193 José Bonifácio St., SP 16015-050, Araçatuba, São Paulo, Brazil; Psychoneuroimmunology Laboratory, Psychosomatic Research Center, Oral Oncology Center, São Paulo State University (Unesp), School of Dentistry, 1193 José Bonifácio St, SP 15050-015, Araçatuba, São Paulo, Brazil.
| | - Kellen Cristine Tjioe
- Oral Oncology Center, São Paulo State University (Unesp), School of Dentistry, 1193 José Bonifácio St., SP 16015-050, Araçatuba, São Paulo, Brazil.
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16
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Saimuang K, Suttisintong K, Kaewchangwat N, Thanayupong E, Wongngam Y, Charoenphun P, Wanotayan R, Elaissari A, Hongeng S, Polpanich D, Jangpatarapongsa K. A model of modified meta-iodobenzylguanidine conjugated gold nanoparticles for neuroblastoma treatment. RSC Adv 2021; 11:25199-25206. [PMID: 35478920 PMCID: PMC9037022 DOI: 10.1039/d1ra04054e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/14/2021] [Indexed: 12/17/2022] Open
Abstract
Iodine-131 meta-iodobenzylguanidine (131I-mIBG) has been utilized as a standard treatment to minimize adverse side effects by targeting therapies to bind to the norepinephrine transporter (NET) expressed on 90% of neuroblastoma cells. However, only a minority of patients who receive 131I-mIBG radiotherapy have clinical responses, and these are usually not curative. In this study, novel ligand-conjugated gold nanoparticles (GNPs) based on mIBG were synthesized and evaluated biologically with neuroblastoma cells in vitro. To induce specific internalization to the tumor cells and utilize it as a model for radioenhancement, 127I-modified mIBG was successfully synthesized and grafted covalently to the surface of carboxylated PEG-GNPs. 49.28% of the novel mIBG derivative was grafted on carboxylated PEG-GNPs. The particles were stable and not toxic to the normal fibroblast cell line, L929, even at the highest concentration tested (1013 NPs per mL) at 24, 48, and 72 h. Moreover, the cellular uptake of the model was decreased significantly in the presence of a NET inhibitor, suggesting that there was specific internalization into neuroblastoma cells line (SH-SY5Y) via the NET. Therefore, this model provides useful guidance toward the design of gold nanomaterials to enhance the efficiency of 131I-mIBG treatment in neuroblastoma patients. However, the investigation of radio-therapeutic efficiency after radioisotope 131I substitution will be further conducted in a radiation safety laboratory using an animal model.
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Affiliation(s)
- Kween Saimuang
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University Bangkok 10700 Thailand
| | - Khomson Suttisintong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) Pathum Thani 12120 Thailand
| | - Narongpol Kaewchangwat
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) Pathum Thani 12120 Thailand
| | - Eknarin Thanayupong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) Pathum Thani 12120 Thailand
| | - Yodsathorn Wongngam
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) Pathum Thani 12120 Thailand
| | - Putthiporn Charoenphun
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University Bangkok 10400 Thailand
| | - Rujira Wanotayan
- Department of Radiological Technology, Faculty of Medical Technology, Mahidol University Bangkok 10700 Thailand
| | - Abdelhamid Elaissari
- Univ. Lyon, University Claude Bernard Lyon-1, CNRS, ISA-UMR 5280 69622 Villeurbanne France
| | - Suradej Hongeng
- Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University Bangkok 10400 Thailand
| | - Duangporn Polpanich
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) Pathum Thani 12120 Thailand
| | - Kulachart Jangpatarapongsa
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University Bangkok 10700 Thailand
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Rafael MS, Cohen-Gogo S, Irwin MS, Vali R, Shammas A, Morgenstern DA. Theranostics in Neuroblastoma. PET Clin 2021; 16:419-427. [PMID: 34053585 DOI: 10.1016/j.cpet.2021.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Theranostics combines diagnosis and targeted therapy, achieved by the use of the same or similar molecules labeled with different radiopharmaceuticals or identical with different dosages. One of the best examples is the use of metaiodobenzylguanidine (MIBG). In the management of neuroblastoma-the most common extracranial solid tumor in children. MIBG has utility not only for diagnosis, risk-stratification, and response monitoring but also for cancer therapy, particularly in the setting of relapsed/refractory disease. Improved techniques and new emerging radiopharmaceuticals likely will strengthen the role of nuclear medicine in the management of neuroblastoma.
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Affiliation(s)
- Margarida Simao Rafael
- Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada
| | - Sarah Cohen-Gogo
- Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada
| | - Meredith S Irwin
- Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada
| | - Reza Vali
- Division of Nuclear Medicine, Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada.
| | - Amer Shammas
- Division of Nuclear Medicine, Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada
| | - Daniel A Morgenstern
- Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada
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18
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Karakus OO, Godugu K, Fujioka K, Mousa SA. Design, synthesis, and biological evaluation of novel bifunctional thyrointegrin antagonists for neuroblastoma. Bioorg Med Chem 2021; 42:116250. [PMID: 34118788 DOI: 10.1016/j.bmc.2021.116250] [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] [Received: 03/26/2021] [Revised: 05/10/2021] [Accepted: 05/28/2021] [Indexed: 11/18/2022]
Abstract
Receptor-mediated cancer therapy has received much attention in the last few decades. Neuroblastoma and other cancers of the sympathetic nervous system highly express norepinephrine transporter (NET) and cell plasma membrane integrin αvβ3. Dual targeting of the NET and integrin αvβ3 receptors using a Drug-Drug Conjugate (DDC) might provide effective treatment strategy in the fight against neuroblastoma and other neuroendocrine tumors. In this work, we synthesized three dual-targeting BG-P400-TAT derivatives, dI-BG-P400-TAT, dM-BG-P400-TAT, and BG-P400-PAT containing di-iodobenzene, di-methoxybenzene, and piperazine groups, respectively. These derivatives utilize to norepinephrine transporter (NET) and the integrin αvβ3 receptor to simultaneously modulate both targets based on evaluation in a neuroblastoma animal model using the neuroblastoma SK-N-F1 cell line. Among the three synthesized agents, the piperazine substituted BG-P400-PAT exhibited potent integrin αvβ3 antagonism and reduced neuroblastoma tumor growth and cancer cell viability by >90%. In conclusion, BG-P400-PAT and derivatives represent a potential therapeutic approach in the management of neuroblastoma.
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Affiliation(s)
- Ozlem Ozen Karakus
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY 12144, United States
| | - Kavitha Godugu
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY 12144, United States
| | - Kazutoshi Fujioka
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY 12144, United States
| | - Shaker A Mousa
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY 12144, United States.
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19
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Anongpornjossakul Y, Sriwatcharin W, Thamnirat K, Chamroonrat W, Kositwattanarerk A, Utamakul C, Sritara C, Chokesuwattanasakul P, Thokanit NS, Pakakasama S, Anurathapan U, Pongphitcha P, Chotipanich C, Hongeng S. Iodine-131 metaiodobenzylguanidine (131I-mIBG) treatment in relapsed/refractory neuroblastoma. Nucl Med Commun 2021; 41:336-343. [PMID: 31939898 DOI: 10.1097/mnm.0000000000001152] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND I-meta-iodo-benzylguanidine (I-mIBG) therapy has been used in treatment of for advanced neuroblastoma for many years with promising results. There are several studies regarding predictors and outcomes of I-mIBG therapies in relapsed/refractory neuroblastoma patients. OBJECTIVE To identify the predictors and outcomes of I-mIBG treatment in relapsed/refractory neuroblastoma. METHODS This study was a retrospective review of 22 patients with high risk stage IV relapsed/refractory neuroblastoma who received at least one cycle of I-mIBG therapy. Patient' characteristics, hematologic toxicity, scintigraphic semi-quantitative scoring, and overall survival were recorded. Factors predicting survival were analyzed. RESULTS Twenty-two patients (50% male) with mean age of 3.7 years (4.8 months to 8.3 years) received I-mIBG therapies at an average of 3.8 and mean dose of 136 mCi (5032 MBq) per treatment. Most common acute hematologic toxicity was thrombocytopenia. Overall 5-year survival rate was 37% (95% confidence interval: 16.3-58.0) and median survival time was 2.8 year (95% confidence interval: 1.38-6.34). Patients with rising Curie score of ≥25% upon the second therapy were major determinants of overall survival with poorer response to treatment. At least three treatments of I-mIBG were needed to identify some degrees of survival prolongation (crude hazard ratio: P-value = 0.003). Age, sex, metastatic status, and baseline Curie scoring system were good predictors associated with survival. Seven patients (32%) demonstrated objective responses. CONCLUSION Despite multimodality therapy, high risk neuroblastoma had a propensity of treatment failure in terms of relapsed or refractory, with some objective responses after I-mIBG treatments. The declined or non-rising Curie score upon second post-treatment total body scan was an important predictor of survival and aided a decision whether or not to proceed with bone marrow transplantation.
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Affiliation(s)
- Yoch Anongpornjossakul
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Wattanun Sriwatcharin
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Kanungnij Thamnirat
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Wichana Chamroonrat
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Arpakorn Kositwattanarerk
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Chirawat Utamakul
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Chanika Sritara
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Payap Chokesuwattanasakul
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | | | - Samart Pakakasama
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Usanarat Anurathapan
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Pongpak Pongphitcha
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University
| | - Chanisa Chotipanich
- Division of Nuclear Medicine, National Cyclotron and PET Centre, Cholabhorn Hospital, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Suradej Hongeng
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University
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20
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Substrates and Inhibitors of Organic Cation Transporters (OCTs) and Plasma Membrane Monoamine Transporter (PMAT) and Therapeutic Implications. Handb Exp Pharmacol 2021; 266:119-167. [PMID: 34495395 DOI: 10.1007/164_2021_516] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The gene products of the SLC22A gene family (hOCT1, hOCT2, and hOCT3) and of the SLC29A4 gene (hPMAT or hENT4) are all polyspecific organic cation transporters. Human OCTs (including hPMAT) are expressed in peripheral tissues such as small intestine, liver, and kidney involved in the pharmacokinetics of drugs. In the human brain, all four transporters are expressed at the blood-brain barrier (BBB), hOCT2 is additionally expressed in neurons, and hOCT3 and hPMAT in glia. More than 40% of the presently used drugs are organic cations. This chapter lists and discusses all known drugs acting as substrates or inhibitors of these four organic cation transporters, independently of whether the transporter is expressed in the central nervous system (CNS) or in peripheral tissues. Of interest is their involvement in drug absorption, distribution, and excretion as well as potential OCT-associated drug-drug interactions (DDIs), with a focus on drugs that act in the CNS.
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21
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[Use of radiopharmaceuticals in pediatrics: Specificities and recommandations of SoFRa (Société française de radiopharmacie)]. ANNALES PHARMACEUTIQUES FRANÇAISES 2020; 79:230-243. [PMID: 33159849 DOI: 10.1016/j.pharma.2020.10.013] [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: 05/15/2020] [Revised: 09/22/2020] [Accepted: 10/13/2020] [Indexed: 11/20/2022]
Abstract
Radiopharmaceuticals are commonly used in children in nuclear medicine. Because of physiological differences in growing children and their radiosensitivity, precautions must be taken throughout the medication use process. The aim of this work is to propose recommendations, under the aegis of the Société française de radiopharmacie (SoFRa), for each subsystem of the process, in order to ensure the safety of pediatric patients. Furthermore, an analysis of two surveys on diagnostic radiopharmaceuticals dosage used in different nuclear medicine departments in France is detailed. Recommendations for therapeutic radiopharmaceuticals are also provided. Specificities of the preparation for pediatric patients are discussed through the example of the radiopharmaceuticals for lung perfusion scintigraphy. The preparation of individual dose and administration are also described. In nuclear medicine, radiopharmacist's expertise is essential for patient safety. A multidisciplinary approach is necessary to secure pediatric radiopharmaceutical use process.
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22
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Blom T, Meinsma R, Rutgers M, Buitenhuis C, Dekken-Van den Burg M, van Kuilenburg ABP, Tytgat GAM. Selective serotonin reuptake inhibitors (SSRIs) prevent meta-iodobenzylguanidine (MIBG) uptake in platelets without affecting neuroblastoma tumor uptake. EJNMMI Res 2020; 10:78. [PMID: 32642907 PMCID: PMC7343696 DOI: 10.1186/s13550-020-00662-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 06/25/2020] [Indexed: 12/21/2022] Open
Abstract
Background The therapeutic use of [131I]meta-iodobenzylguanidine ([131I]MIBG) is often accompanied by hematological toxicity, mainly consisting of persistent and severe thrombocytopenia. While MIBG accumulates in neuroblastoma cells via selective uptake by the norepinephrine transporter (NET), the serotonin transporter (SERT) is responsible for cellular uptake of MIBG in platelets. In this study, we have investigated whether pharmacological intervention with selective serotonin reuptake inhibitors (SSRIs) may prevent radiotoxic MIBG uptake in platelets without affecting neuroblastoma tumor uptake. Methods To determine the transport kinetics of SERT for [125I]MIBG, HEK293 cells were transfected with SERT and uptake assays were conducted. Next, a panel of seven SSRIs was tested in vitro for their inhibitory potency on the uptake of [125I]MIBG in isolated human platelets and in cultured neuroblastoma cells. We investigated in vivo the efficacy of the four best performing SSRIs on the accumulation of [125I]MIBG in nude mice bearing subcutaneous neuroblastoma xenografts. In ex vivo experiments, the diluted plasma of mice treated with SSRIs was added to isolated human platelets to assess the effect on [125I]MIBG uptake. Results SERT performed as a low-affinity transporter of [125I]MIBG in comparison with NET (Km = 9.7 μM and 0.49 μM, respectively). Paroxetine was the most potent uptake inhibitor of both serotonin (IC50 = 0.6 nM) and MIBG (IC50 = 0.2 nM) in platelets. Citalopram was the most selective SERT inhibitor of [125I]MIBG uptake, with high SERT affinity in platelets (IC50 = 7.8 nM) and low NET affinity in neuroblastoma cells (IC50 = 11.940 nM). The in vivo tested SSRIs (citalopram, fluvoxamine, sertraline, and paroxetine) had no effect on [125I]MIBG uptake levels in neuroblastoma xenografts. In contrast, treatment with desipramine, a NET selective inhibitor, resulted in profoundly decreased xenograft [125I]MIBG levels (p < 0.0001). In ex vivo [125I]MIBG uptake experiments, 100- and 34-fold diluted murine plasma of mice treated with citalopram added to isolated human platelets led to a decrease in MIBG uptake of 54–76%, respectively. Conclusion Our study demonstrates for the first time that SSRIs selectively inhibit MIBG uptake in platelets without affecting MIBG accumulation in an in vivo neuroblastoma model. The concomitant application of citalopram during [131I]MIBG therapy seems a promising strategy to prevent thrombocytopenia in neuroblastoma patients.
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Affiliation(s)
- Thomas Blom
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Gastroenterology & Metabolism, Department of Clinical Chemistry, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Rutger Meinsma
- Gastroenterology & Metabolism, Department of Clinical Chemistry, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Marja Rutgers
- Department of Experimental Therapy, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Corine Buitenhuis
- Department of Experimental Therapy, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Marieke Dekken-Van den Burg
- Department of Pediatric Oncology, Emma Children's Hospital, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - André B P van Kuilenburg
- Gastroenterology & Metabolism, Department of Clinical Chemistry, Amsterdam University Medical Center, Amsterdam, The Netherlands
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Karakus OO, Godugu K, Rajabi M, Mousa SA. Dual Targeting of Norepinephrine Transporter (NET) Function and Thyrointegrin αvβ3 Receptors in the Treatment of Neuroblastoma. J Med Chem 2020; 63:7653-7662. [DOI: 10.1021/acs.jmedchem.0c00537] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ozlem Ozen Karakus
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, 1 Discovery Drive (Room 238), Rensselaer, New York 12144, United States
| | - Kavitha Godugu
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, 1 Discovery Drive (Room 238), Rensselaer, New York 12144, United States
| | - Mehdi Rajabi
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, 1 Discovery Drive (Room 238), Rensselaer, New York 12144, United States
| | - Shaker A. Mousa
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, 1 Discovery Drive (Room 238), Rensselaer, New York 12144, United States
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Rubio PM, Galán V, Rodado S, Plaza D, Martínez L. MIBG Therapy for Neuroblastoma: Precision Achieved With Dosimetry, and Concern for False Responders. Front Med (Lausanne) 2020; 7:173. [PMID: 32549040 PMCID: PMC7270400 DOI: 10.3389/fmed.2020.00173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/15/2020] [Indexed: 11/13/2022] Open
Abstract
Neuroblastoma causes 15% of cancer mortality in children. High risk neuroblastoma has poor prognosis, with high relapse rate and mortality despite multimodal treatment. 123-I-meta-iodo-benzyl-guanidine (mIBG) scintigraphy is one of the current standard diagnostic procedures in neuroblastoma. mIBG can also be used therapeutically, labeled with 131-I, as a radiopharmaceutical agent, delivering targeted radiotherapy to tumoral sites. But published data of this strategy show heterogeneous results. One concern is that in most reports the infused activity is only based in body-weight, which could lead to infra or over-treatment, depending on inter-patient variability in radiation absorption. Activity adjustment by whole-body dosimetry can be used to homogeneize the treatment. Also, mIBG avid tumors may lose avidness along the treatment. As mIBG is used both for treatment and response evaluation, this could result in undetected progressions in patients with apparent complete response. We present a retrospective single-center review of neuroblastoma patients who received therapeutic 131-I-mIBG, focusing on cases with dosimetry-adjusted activity. Dosimetry allowed for a more precise delivery of radiation, reducing 81.1% of deviation from absorption target of 4 Gray (Gy), from 23.4% (±0.936 Gy) to 4.4% (± 0.176 Gy). Patients who showed partial or complete response had better and longer survival. Relapse/progression in non-responders was an early event (within 3 months from treatment). We also present one case of progression with apparent complete response due to loss of mIBG avidness, detected in our series.
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Affiliation(s)
- Pedro M Rubio
- Pediatric Hemato-Oncology Department, Hospital Universitario La Paz, Madrid, Spain.,Investigación Traslacional en Cáncer Infantil, Trasplante Hematopoyético y Terapia Celular, Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Victor Galán
- Pediatric Hemato-Oncology Department, Hospital Universitario La Paz, Madrid, Spain
| | - Sonia Rodado
- Nuclear Medicine Department, Hospital Universitario La Paz, Madrid, Spain
| | - Diego Plaza
- Pediatric Hemato-Oncology Department, Hospital Universitario La Paz, Madrid, Spain
| | - Leopoldo Martínez
- Pediatric Surgery Department, Hospital Universitario La Paz, Madrid, Spain.,Network for Maternal and Children Health SAMID (RD16/0022/0006), Instituto de Salud Carlos III, Madrid, Spain
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25
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López Quiñones AJ, Wagner DJ, Wang J. Characterization of Meta-Iodobenzylguanidine (mIBG) Transport by Polyspecific Organic Cation Transporters: Implication for mIBG Therapy. Mol Pharmacol 2020; 98:109-119. [PMID: 32487736 DOI: 10.1124/mol.120.119495] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/27/2020] [Indexed: 12/15/2022] Open
Abstract
Radiolabeled meta-iodobenzylguanidine (mIBG) is an important radiopharmaceutical used in the diagnosis and treatment of neuroendocrine cancers. mIBG is known to enter tumor cells through the norepinephrine transporter. Whole-body scintigraphy has shown rapid mIBG elimination through the kidney and high accumulation in several normal tissues, but the underlying molecular mechanisms are unclear. Using transporter-expressing cell lines, we show that mIBG is an excellent substrate for human organic cation transporters 1-3 (hOCT1-3) and the multidrug and toxin extrusion proteins 1 and 2-K (hMATE1/2-K), but not for the renal organic anion transporter 1 and 3 (hOAT1/3). Kinetic analysis revealed that hOCT1, hOCT2, hOCT3, hMATE1, and hMATE2-K transport mIBG with similar apparent affinities (K m of 19.5 ± 6.9, 17.2 ± 2.8, 14.5 ± 7.1, 17.7 ± 10.9, 12.6 ± 5.6 µM, respectively). Transwell studies in hOCT2/hMATE1 double-transfected Madin-Darby canine kidney cells showed that mIBG transport in the basal (B)-to-apical (A) direction is much greater than in the A-to-B direction. Compared with control cells, the B-to-A permeability of mIBG increased by 20-fold in hOCT2/hMATE1 double-transfected cells. Screening of 23 drugs used in the treatment of neuroblastoma identified several drugs with the potential to inhibit hOCT- or hMATE-mediated mIBG uptake. Interestingly, irinotecan selectively inhibited hOCT1, whereas crizotinib potently inhibited hOCT3-mediated mIBG uptake. Our results suggest that mIBG undergoes renal tubular secretion mediated by hOCT2 and hMATE1/2-K, and hOCT1 and hOCT3 may play important roles in mIBG uptake into normal tissues. SIGNIFICANCE STATEMENT: mIBG is eliminated by the kidney and extensively accumulates in several tissues known to express hOCT1 and hOCT3. Our results suggest that hOCT2 and human multidrug and toxin extrusion proteins 1 and 2-K are involved in mIBG renal elimination, whereas hOCT1 and hOCT3 may play important roles in mIBG uptake into normal tissues. These findings may help to predict and prevent adverse drug interaction with therapeutic [131I]mIBG and develop clinical strategies to reduce [131I]mIBG accumulation and toxicity in normal tissues and organs.
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Affiliation(s)
| | - David J Wagner
- Department of Pharmaceutics, University of Washington, Seattle, Washington
| | - Joanne Wang
- Department of Pharmaceutics, University of Washington, Seattle, Washington
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26
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Pauwels E, Van Aerde M, Bormans G, Deroose CM. Molecular imaging of norepinephrine transporter-expressing tumors: current status and future prospects. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF RADIOPHARMACEUTICAL CHEMISTRY AND BIOLOGY 2020; 64:234-249. [PMID: 32397701 DOI: 10.23736/s1824-4785.20.03261-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The human norepinephrine transporter (hNET) is a transmembrane protein responsible for reuptake of norepinephrine in presynaptic sympathetic nerve terminals and adrenal chromaffin cells. Neural crest tumors, such as neuroblastoma, paraganglioma and pheochromocytoma often show high hNET expression. Molecular imaging of these tumors can be done using radiolabeled norepinephrine analogs that target hNET. Currently, the most commonly used radiopharmaceutical for hNET imaging is meta-[123I]iodobenzylguanidine ([123I]MIBG) and this has been the case since its development several decades ago. The γ-emitter, iodine-123 only allows for planar scintigraphy and single photon emission computed tomography imaging. These modalities typically have a poorer spatial resolution and lower sensitivity than positron emission tomography (PET). Additional practical disadvantages include the fact that a two-day imaging protocol is required and the need for thyroid blockade. Therefore, several PET alternatives for hNET imaging are actively being explored. This review gives an in-depth overview of the current status and recent developments in clinical trials leading to the next generation of clinical PET ligands for imaging of hNET-expressing tumors.
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Affiliation(s)
- Elin Pauwels
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, University Hospitals Leuven, Leuven, Belgium.,Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Belgium
| | - Matthias Van Aerde
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, University Hospitals Leuven, Leuven, Belgium.,Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Belgium
| | - Guy Bormans
- Radiopharmaceutical Research, Department of Pharmacy and Pharmacology, KU Leuven, Leuven, Belgium
| | - Christophe M Deroose
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, University Hospitals Leuven, Leuven, Belgium - .,Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Belgium
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Kortylewicz ZP, Coulter DW, Han G, Baranowska-Kortylewicz J. Radiolabeled (R)-(-)-5-iodo-3'-O-[2-(ε-guanidinohexanoyl)-2-phenylacetyl]-2'-deoxyuridine: A new theranostic for neuroblastoma. J Labelled Comp Radiopharm 2020; 63:10.1002/jlcr.3836. [PMID: 32150284 PMCID: PMC7483288 DOI: 10.1002/jlcr.3836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/23/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022]
Abstract
Neuroblastoma, the most common extracranial solid tumor in children, accounts for nearly 8% of childhood cancers in the United States. It is a disease with pronounced clinical and biological heterogeneities. The amplification of MYCN, whose key tumorigenic functions include the promotion of proliferation, facilitation of the cell's entry into the S phase, and prevention of cells from leaving the cell cycle, correlates with poor prognosis. Patients with a high proliferation index disease have low survival rates. Neuroblastoma is one of the most radioresponsive of all human tumors. To exploit this radiosensitivity, radioactive guanidine (R)-(-)-5-[125 I]iodo-3'-O-[2-(ε-guanidinohexanoyl)-2-phenylacetyl]-2'-deoxyuridine (9, GPAID) was designed. This compound enters neuroblastoma cells much like metaiodobenzylguanidine (MIBG). Additionally, it cotargets DNA of proliferating cells, an attribute especially advantageous in the treatment of MYCN-amplified tumors. GPAID was synthesized from the trimethylstannyl precursor with an average yield of >90% at the no-carrier-added specific activities. The norepinephrine transporter-aided delivery of GPAID to neuroblastoma cells was established in the competitive uptake studies with nonradioactive MIBG. The intracellular processing and DNA targeting properties were confirmed in the subcellular distribution experiments. Studies in a mouse model of neuroblastoma demonstrated the therapeutic potential of GPAID. The tin precursor of GPAID can be used to prepare compounds radiolabeled with single-photon emission computed tomography (SPECT)- and positron-emission tomography (PET)-compatible radionuclides. Accordingly, these reagents can function as theranostics useful in the individualized and comprehensive treatment strategies comprising treatment planning and the assessment of tumor responses as well as the targeted molecular radiotherapy employing treatment doses derived from the imaging data.
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Affiliation(s)
- Zbigniew P Kortylewicz
- Department of Radiation Oncology, J. Bruce Henriksen Cancer Research Laboratories, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Don W Coulter
- Department of Pediatrics, Division of Hematology and Oncology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Guang Han
- Department of Radiation Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Janina Baranowska-Kortylewicz
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska, USA
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28
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Ermert J, Benešová M, Hugenberg V, Gupta V, Spahn I, Pietzsch HJ, Liolios C, Kopka K. Radiopharmaceutical Sciences. Clin Nucl Med 2020. [DOI: 10.1007/978-3-030-39457-8_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Targeting uptake transporters for cancer imaging and treatment. Acta Pharm Sin B 2020; 10:79-90. [PMID: 31993308 PMCID: PMC6977162 DOI: 10.1016/j.apsb.2019.12.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/27/2019] [Accepted: 11/17/2019] [Indexed: 12/11/2022] Open
Abstract
Cancer cells reprogram their gene expression to promote growth, survival, proliferation, and invasiveness. The unique expression of certain uptake transporters in cancers and their innate function to concentrate small molecular substrates in cells make them ideal targets for selective delivering imaging and therapeutic agents into cancer cells. In this review, we focus on several solute carrier (SLC) transporters known to be involved in transporting clinically used radiopharmaceutical agents into cancer cells, including the sodium/iodine symporter (NIS), norepinephrine transporter (NET), glucose transporter 1 (GLUT1), and monocarboxylate transporters (MCTs). The molecular and functional characteristics of these transporters are reviewed with special emphasis on their specific expressions in cancers and interaction with imaging or theranostic agents [e.g., I-123, I-131, 123I-iobenguane (mIBG), 18F-fluorodeoxyglucose (18F-FDG) and 13C pyruvate]. Current clinical applications and research areas of these transporters in cancer diagnosis and treatment are discussed. Finally, we offer our views on emerging opportunities and challenges in targeting transporters for cancer imaging and treatment. By analyzing the few clinically successful examples, we hope much interest can be garnered in cancer research towards uptake transporters and their potential applications in cancer diagnosis and treatment.
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Key Words
- CT, computed tomography
- Cancer imaging
- DDI, drug–drug interaction
- DTC, differentiated thyroid cancer
- FDA, U.S. Food and Drug Administrations
- FDG, fluorodeoxyglucose
- GLUT, glucose transporter
- IAEA, the International Atomic Energy Agency
- LACC, locally advanced cervical cancer
- LAT, large amino acid transporter
- MCT, monocarboxylate transporter
- MRI, magnetic resonance imaging
- NE, norepinephrine
- NET, norepinephrine transporter
- NIS, sodium/iodine symporter
- Neuroblastoma
- OCT, organic cation transporter
- PET, positron emission tomography
- PHEO, pheochromocytoma
- RA, retinoic acid
- RET, rearranged during transfection
- SLC, solute carrier
- SPECT, single-photon emission computed tomography
- SUV, standardized uptake value
- TFB, tetrafluoroborate
- TSH, thyroid stimulating hormones
- Thyroid cancer
- Uptake transporter
- Warburg effect
- mIBG
- mIBG, iobenguane/meta-iodobenzylguanidine
- vHL, von Hippel-Lindau
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Treatment of Neuroendocrine Tumours (Neuroblastoma Stage III or IV, Metastatic Pheochromocytoma, Etc.) with 131I-mIBG. Clin Nucl Med 2020. [DOI: 10.1007/978-3-030-39457-8_33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Zhang H, Xie F, Cheng M, Peng F. Novel Meta-iodobenzylguanidine-Based Copper Thiosemicarbazide-1-guanidinomethylbenzyl Anticancer Compounds Targeting Norepinephrine Transporter in Neuroblastoma. J Med Chem 2019; 62:6985-6991. [DOI: 10.1021/acs.jmedchem.9b00386] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Haiyuan Zhang
- Carman & Ann Adams Department of Pediatrics, School of Medicine, Wayne State University, Detroit, Michigan 48201, United States
| | - Fang Xie
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas 735390, United States
| | - Muhua Cheng
- Department of Nuclear Medicine, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P. R. China
| | - Fangyu Peng
- Carman & Ann Adams Department of Pediatrics, School of Medicine, Wayne State University, Detroit, Michigan 48201, United States
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas 735390, United States
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
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Villaverde G, Alfranca A, Gonzalez-Murillo Á, Melen GJ, Castillo RR, Ramírez M, Baeza A, Vallet-Regí M. Molecular Scaffolds as Double-Targeting Agents For the Diagnosis and Treatment of Neuroblastoma. Angew Chem Int Ed Engl 2019; 58:3067-3072. [PMID: 30537383 PMCID: PMC6667334 DOI: 10.1002/anie.201811691] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/30/2018] [Indexed: 01/27/2023]
Abstract
The selective delivery of therapeutic and imaging agents to tumoral cells has been postulated as one of the most important challenges in the nanomedicine field. Meta-iodobenzilguanidine (MIBG) is widely used for the diagnosis of neuroblastoma (NB) due to its strong affinity for the norepinephrine transporter (NET), usually overexpressed on the membrane of malignant cells. Herein, a family of novel Y-shaped scaffolds has been synthesized, which have structural analogues of MIBG covalently attached at each end of the Y-structure. The cellular uptake capacity of these double-targeting ligands has been evaluated in vitro and in vivo, yielding one specific Y-shaped structure that is able to be engulfed by the malignant cells, and accumulates in the tumoral tissue, at significantly higher levels than the structure containing only one single targeting agent. This Y-shaped ligand can provide a powerful tool for the current treatment and diagnosis of this disease.
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Affiliation(s)
- Gonzalo Villaverde
- Dpto. Química en Ciencias Farmacéuticas. Facultad de Farmacia, Universidad Complutense de Madrid. Plaza Ramon y Cajal s/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Madrid, Spain
| | - Arantzazu Alfranca
- Servicio de Inmunología. Hospital Universitario de La Princesa
- Instituto de Investigacion Sanitaria La Princesa. Diego de León, 62. 28006 Madrid, Spain
| | - África Gonzalez-Murillo
- Instituto de Investigacion Sanitaria La Princesa. Diego de León, 62. 28006 Madrid, Spain
- Servicio de Hematología y Oncología Pediátrica, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Gustavo J. Melen
- Instituto de Investigacion Sanitaria La Princesa. Diego de León, 62. 28006 Madrid, Spain
- Servicio de Hematología y Oncología Pediátrica, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Rafael R. Castillo
- Dpto. Química en Ciencias Farmacéuticas. Facultad de Farmacia, Universidad Complutense de Madrid. Plaza Ramon y Cajal s/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Madrid, Spain
| | - Manuel Ramírez
- Instituto de Investigacion Sanitaria La Princesa. Diego de León, 62. 28006 Madrid, Spain
- Servicio de Hematología y Oncología Pediátrica, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Alejandro Baeza
- Dpto. Química en Ciencias Farmacéuticas. Facultad de Farmacia, Universidad Complutense de Madrid. Plaza Ramon y Cajal s/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Madrid, Spain
- Dpto. Materiales y Producción Aeroespacial, ETSI Aeronáutica y del Espacio, Universidad Politécnica de Madrid, 28040-Madrid, Spain
| | - María Vallet-Regí
- Dpto. Química en Ciencias Farmacéuticas. Facultad de Farmacia, Universidad Complutense de Madrid. Plaza Ramon y Cajal s/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Madrid, Spain
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Villaverde G, Alfranca A, Gonzalez‐Murillo Á, Melen GJ, Castillo RR, Ramírez M, Baeza A, Vallet‐Regí M. Molecular Scaffolds as Double‐Targeting Agents For the Diagnosis and Treatment of Neuroblastoma. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201811691] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gonzalo Villaverde
- Dpto. Química en Ciencias Farmacéuticas.Facultad de FarmaciaUniversidad Complutense de Madrid Plaza Ramon y Cajal s/n. Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 Spain
- Centro de Investigación Biomédica en Red de BioingenieríaBiomateriales y Nanomedicina (CIBER-BBN) Madrid Spain
| | - Arantzazu Alfranca
- Servicio de Inmunología.Hospital Universitario de La Princesa Spain
- Instituto de Investigacion Sanitaria La Princesa Diego de León 62, 28006 Madrid Spain
| | - África Gonzalez‐Murillo
- Instituto de Investigacion Sanitaria La Princesa Diego de León 62, 28006 Madrid Spain
- Servicio de Hematología y Oncología PediátricaHospital Infantil Universitario Niño Jesús Madrid Spain
| | - Gustavo J. Melen
- Instituto de Investigacion Sanitaria La Princesa Diego de León 62, 28006 Madrid Spain
- Servicio de Hematología y Oncología PediátricaHospital Infantil Universitario Niño Jesús Madrid Spain
| | - Rafael R. Castillo
- Dpto. Química en Ciencias Farmacéuticas.Facultad de FarmaciaUniversidad Complutense de Madrid Plaza Ramon y Cajal s/n. Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 Spain
- Centro de Investigación Biomédica en Red de BioingenieríaBiomateriales y Nanomedicina (CIBER-BBN) Madrid Spain
| | - Manuel Ramírez
- Instituto de Investigacion Sanitaria La Princesa Diego de León 62, 28006 Madrid Spain
- Servicio de Hematología y Oncología PediátricaHospital Infantil Universitario Niño Jesús Madrid Spain
| | - Alejandro Baeza
- Dpto. Química en Ciencias Farmacéuticas.Facultad de FarmaciaUniversidad Complutense de Madrid Plaza Ramon y Cajal s/n. Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 Spain
- Centro de Investigación Biomédica en Red de BioingenieríaBiomateriales y Nanomedicina (CIBER-BBN) Madrid Spain
- Dpto. Materiales y Producción AeroespacialETSI Aeronáutica y del EspacioUniversidad Politécnica de Madrid 28040 Madrid Spain
| | - María Vallet‐Regí
- Dpto. Química en Ciencias Farmacéuticas.Facultad de FarmaciaUniversidad Complutense de Madrid Plaza Ramon y Cajal s/n. Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 Spain
- Centro de Investigación Biomédica en Red de BioingenieríaBiomateriales y Nanomedicina (CIBER-BBN) Madrid Spain
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Abstract
Nuclear medicine has a central role in the diagnosis, staging, response assessment and long-term follow-up of neuroblastoma, the most common solid extracranial tumour in children. These EANM guidelines include updated information on 123I-mIBG, the most common study in nuclear medicine for the evaluation of neuroblastoma, and on PET/CT imaging with 18F-FDG, 18F-DOPA and 68Ga-DOTA peptides. These PET/CT studies are increasingly employed in clinical practice. Indications, advantages and limitations are presented along with recommendations on study protocols, interpretation of findings and reporting results.
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Vāvere AL, Neumann KD, Butch ER, Hu B, DiMagno SG, Snyder SE. Improved, one-pot synthesis of 6-[18
F]fluorodopamine and quality control testing for use in patients with neuroblastoma. J Labelled Comp Radiopharm 2018; 61:1069-1080. [DOI: 10.1002/jlcr.3685] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 09/03/2018] [Accepted: 09/27/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Amy L. Vāvere
- Division of Nuclear Medicine, Department of Diagnostic Imaging; St. Jude Children's Research Hospital; Memphis Tennessee USA
| | | | - Elizabeth R. Butch
- Division of Nuclear Medicine, Department of Diagnostic Imaging; St. Jude Children's Research Hospital; Memphis Tennessee USA
| | - Bao Hu
- Department of Medicinal Chemistry and Pharmacognosy; University of Illinois at Chicago; Chicago Illinois USA
| | - Stephen G. DiMagno
- Department of Medicinal Chemistry and Pharmacognosy; University of Illinois at Chicago; Chicago Illinois USA
| | - Scott E. Snyder
- Division of Nuclear Medicine, Department of Diagnostic Imaging; St. Jude Children's Research Hospital; Memphis Tennessee USA
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Araki R, Nishimura R, Inaki A, Wakabayashi H, Imai Y, Kuribayashi Y, Yoshimura K, Murayama T, Kinuya S. Feasibility of High-dose Iodine-131-metaiodobenzylguanidine Therapy for High-risk Neuroblastoma Preceding Myeloablative Chemotherapy and Hematopoietic Stem Cell Transplantation: a Study Protocol. ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE & BIOLOGY 2018; 6:161-166. [PMID: 29998150 PMCID: PMC6038972 DOI: 10.22038/aojnmb.2018.29845.1203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Objective(s): High-risk neuroblastoma is a childhood cancer with poor prognosis despite modern multimodality therapy. Internal radiotherapy using 131I-metaiodobenzylguanidine (MIBG) is effective for treating the disease even if it is resistant to chemotherapy. The aim of this study is to evaluate the safety and efficacy of 131I-MIBG radiotherapy combined with myeloablative high-dose chemotherapy and hematopoietic stem cell transplantation. Methods: Patients with high-risk neuroblastoma will be enrolled in this study. A total of 8 patients will be registered. Patients will receive 666 MBq/kg of 131I-MIBG and after safety evaluation will undergo high-dose chemotherapy and hematopoietic stem cell transplantation. Autologous and allogeneic stem cell sources will be accepted. After engraftment or 28 days after hematopoietic stem cell transplantation, the safety and response will be evaluated. Conclusion: This is the first prospective study of 131I-MIBG with high-dose chemotherapy and hematopoietic stem cell transplantation in Japan. The results will be the basis of a future nationwide clinical trial.
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Affiliation(s)
- Raita Araki
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Ryosei Nishimura
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Anri Inaki
- Department of Nuclear Medicine, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Hiroshi Wakabayashi
- Department of Nuclear Medicine, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Yasuhito Imai
- Innovative Clinical Research Center, Kanazawa University, Japan
| | | | | | | | - Seigo Kinuya
- Department of Nuclear Medicine, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
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Buchtelova H, Strmiska V, Skubalova Z, Dostalova S, Michalek P, Krizkova S, Hynek D, Kalina L, Richtera L, Moulick A, Adam V, Heger Z. Improving cytocompatibility of CdTe quantum dots by Schiff-base-coordinated lanthanides surface doping. J Nanobiotechnology 2018; 16:43. [PMID: 29673366 PMCID: PMC5907456 DOI: 10.1186/s12951-018-0369-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/13/2018] [Indexed: 12/11/2022] Open
Abstract
Background Suitable fluorophores are the core of fluorescence imaging. Among the most exciting, yet controversial, labels are quantum dots (QDs) with their unique optical and chemical properties, but also considerable toxicity. This hinders QDs applicability in living systems. Surface chemistry has a profound impact on biological behavior of QDs. This study describes a two-step synthesis of QDs formed by CdTe core doped with Schiff base ligand for lanthanides [Ln (Yb3+, Tb3+ and Gd3+)] as novel cytocompatible fluorophores. Results Microwave-assisted synthesis resulted in water-soluble nanocrystals with high colloidal and fluorescence stability with quantum yields of 40.9–58.0%. Despite induction of endocytosis and cytoplasm accumulation of Yb- and TbQDs, surface doping resulted in significant enhancement in cytocompatibility when compared to the un-doped CdTe QDs. Furthermore, only negligible antimigratory properties without triggering formation of reactive oxygen species were found, particularly for TbQDs. Ln-doped QDs did not cause observable hemolysis, adsorbed only a low degree of plasma proteins onto their surface and did not possess significant genotoxicity. To validate the applicability of Ln-doped QDs for in vitro visualization of receptor status of living cells, we performed a site-directed conjugation of antibodies towards immuno-labeling of clinically relevant target—human norepinephrine transporter (hNET), over-expressed in neuroendocrine tumors like neuroblastoma. Immuno-performance of modified TbQDs was successfully tested in distinct types of cells varying in hNET expression and also in neuroblastoma cells with hNET expression up-regulated by vorinostat. Conclusion For the first time we show that Ln-doping of CdTe QDs can significantly alleviate their cytotoxic effects. The obtained results imply great potential of Ln-doped QDs as cytocompatible and stable fluorophores for various bio-labeling applications.
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Affiliation(s)
- Hana Buchtelova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Vladislav Strmiska
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Zuzana Skubalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Simona Dostalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Petr Michalek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Sona Krizkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - David Hynek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Lukas Kalina
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic. .,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic.
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38
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Abstract
Immunotherapies include various approaches, ranging from stimulating effector mechanisms to counteracting inhibitory and suppressive mechanisms, and creating a forum for discussing the most effective means of advancing these therapies through imaging is the focus of the newly formed Imaging in Cellular and Immune Therapies (ICIT) interest group within the World Molecular Imaging Society. Efforts are being made in the identification and validation of predictive biomarkers for a number of immunotherapies. Without predictive biomarkers, a considerable number of patients may receive treatments that have no chance of offering a benefit. This will reflect poorly on the field of immunotherapy and will yield false hopes in patients while at the same time contributing to significant cost to the healthcare system. This review summarizes the main strategies in cancer immune and cell-based therapies and discusses recent advances in imaging strategies aimed to improve cancer immunotherapy outcomes.
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Affiliation(s)
- Vladimir Ponomarev
- Department of Radiology, Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, 1275 York Ave Z-2063, Box 501, New York, NY, 10065, USA.
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Chen X, Werner RA, Lapa C, Nose N, Hirano M, Javadi MS, Robinson S, Higuchi T. Subcellular storage and release mode of the novel 18F-labeled sympathetic nerve PET tracer LMI1195. EJNMMI Res 2018; 8:12. [PMID: 29411169 PMCID: PMC5801140 DOI: 10.1186/s13550-018-0365-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 01/24/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND 18F-N-[3-bromo-4-(3-fluoro-propoxy)-benzyl]-guanidine (18F-LMI1195) is a new class of PET tracer designed for sympathetic nervous imaging of the heart. The favorable image quality with high and specific neural uptake has been previously demonstrated in animals and humans, but intracellular behavior is not yet fully understood. The aim of the present study is to verify whether it is taken up in storage vesicles and released in company with vesicle turnover. RESULTS Both vesicle-rich (PC12) and vesicle-poor (SK-N-SH) norepinephrine-expressing cell lines were used for in vitro tracer uptake studies. After 2 h of 18F-LMI1195 preloading into both cell lines, effects of stimulants for storage vesicle turnover (high concentration KCl (100 mM) or reserpine treatment) were measured at 10, 20, and 30 min. 131I-meta-iodobenzylguanidine (131I-MIBG) served as a reference. Both high concentration KCl and reserpine enhanced 18F-LMI1195 washout from PC12 cells, while tracer retention remained stable in the SK-N-SH cells. After 30 min of treatment, 18F-LMI1195 releasing index (percentage of tracer released from cells) from vesicle-rich PC12 cells achieved significant differences compared to cells without treatment condition. In contrast, such effect could not be observed using vesicle-poor SK-N-SH cell lines. Similar tracer kinetics after KCl or reserpine treatment were also observed using 131I-MIBG. In case of KCl exposure, Ca2+-free buffer with the calcium chelator, ethylenediaminetetracetic acid (EDTA), could suppress the tracer washout from PC12 cells. This finding is consistent with the tracer release being mediated by Ca2+ influx resulting from membrane depolarization. CONCLUSIONS Analogous to 131I-MIBG, the current in vitro tracer uptake study confirmed that 18F-LMI1195 is also stored in vesicles in PC12 cells and released along with vesicle turnover. Understanding the basic kinetics of 18F-LMI1195 at a subcellular level is important for the design of clinical imaging protocols and imaging interpretation.
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Affiliation(s)
- Xinyu Chen
- Department of Nuclear Medicine, University Hospital Würzburg, Oberdürrbacher Strasse 6, 97080, Würzburg, Germany.,Comprehensive Heart Failure Center, University Hospital Würzburg, Würzburg, Germany
| | - Rudolf A Werner
- Department of Nuclear Medicine, University Hospital Würzburg, Oberdürrbacher Strasse 6, 97080, Würzburg, Germany.,Comprehensive Heart Failure Center, University Hospital Würzburg, Würzburg, Germany.,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, USA
| | - Constantin Lapa
- Department of Nuclear Medicine, University Hospital Würzburg, Oberdürrbacher Strasse 6, 97080, Würzburg, Germany
| | - Naoko Nose
- Department of Nuclear Medicine, University Hospital Würzburg, Oberdürrbacher Strasse 6, 97080, Würzburg, Germany.,Department of Bio Medical Imaging, National Cardiovascular and Cerebral Research Center, Suita, Osaka, Japan
| | - Mitsuru Hirano
- Department of Nuclear Medicine, University Hospital Würzburg, Oberdürrbacher Strasse 6, 97080, Würzburg, Germany.,Department of Bio Medical Imaging, National Cardiovascular and Cerebral Research Center, Suita, Osaka, Japan
| | - Mehrbod S Javadi
- 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, USA
| | | | - Takahiro Higuchi
- Department of Nuclear Medicine, University Hospital Würzburg, Oberdürrbacher Strasse 6, 97080, Würzburg, Germany. .,Comprehensive Heart Failure Center, University Hospital Würzburg, Würzburg, Germany. .,Department of Bio Medical Imaging, National Cardiovascular and Cerebral Research Center, Suita, Osaka, Japan.
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Pandit-Taskar N, Modak S. Norepinephrine Transporter as a Target for Imaging and Therapy. J Nucl Med 2017; 58:39S-53S. [PMID: 28864611 DOI: 10.2967/jnumed.116.186833] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/19/2017] [Indexed: 01/01/2023] Open
Abstract
The norepinephrine transporter (NET) is essential for norepinephrine uptake at the synaptic terminals and adrenal chromaffin cells. In neuroendocrine tumors, NET can be targeted for imaging as well as therapy. One of the most widely used theranostic agents targeting NET is metaiodobenzylguanidine (MIBG), a guanethidine analog of norepinephrine. 123I/131I-MIBG theranostics have been applied in the clinical evaluation and management of neuroendocrine tumors, especially in neuroblastoma, paraganglioma, and pheochromocytoma. 123I-MIBG imaging is a mainstay in the evaluation of neuroblastoma, and 131I-MIBG has been used for the treatment of relapsed high-risk neuroblastoma for several years, however, the outcome remains suboptimal. 131I-MIBG has essentially been only palliative in paraganglioma/pheochromocytoma patients. Various techniques of improving therapeutic outcomes, such as dosimetric estimations, high-dose therapies, multiple fractionated administration and combination therapy with radiation sensitizers, chemotherapy, and other radionuclide therapies, are being evaluated. PET tracers targeting NET appear promising and may be more convenient options for the imaging and assessment after treatment. Here, we present an overview of NET as a target for theranostics; review its current role in some neuroendocrine tumors, such as neuroblastoma, paraganglioma/pheochromocytoma, and carcinoids; and discuss approaches to improving targeting and theranostic outcomes.
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Affiliation(s)
| | - Shakeel Modak
- Memorial Sloan Kettering Cancer Center, New York, New York
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Correlation of Somatostatin Receptor-2 Expression with Gallium-68-DOTA-TATE Uptake in Neuroblastoma Xenograft Models. CONTRAST MEDIA & MOLECULAR IMAGING 2017; 2017:9481276. [PMID: 29097943 PMCID: PMC5612706 DOI: 10.1155/2017/9481276] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/18/2017] [Accepted: 07/09/2017] [Indexed: 12/17/2022]
Abstract
Peptide-receptor imaging and therapy with radiolabeled somatostatin analogs such as 68Ga-DOTA-TATE and 177Lu-DOTA-TATE have become an effective treatment option for SSTR-positive neuroendocrine tumors. The purpose of this study was to evaluate the correlation of somatostatin receptor-2 (SSTR2) expression with 68Ga-DOTA-TATE uptake and 177Lu-DOTA-TATE therapy in neuroblastoma (NB) xenograft models. We demonstrated variable SSTR2 expression profiles in eight NB cell lines. From micro-PET imaging and autoradiography, a higher uptake of 68Ga-DOTA-TATE was observed in SSTR2 high-expressing NB xenografts (CHLA-15) compared to SSTR2 low-expressing NB xenografts (SK-N-BE(2)). Combined autoradiography-immunohistochemistry revealed histological colocalization of SSTR2 and 68Ga-DOTA-TATE uptake in CHLA-15 tumors. With a low dose of 177Lu-DOTA-TATE (20 MBq/animal), tumor growth inhibition was achieved in the CHLA-15 high SSTR2 expressing xenograft model. Although, in vitro, NB cells showed variable expression levels of norepinephrine transporter (NET), a molecular target for 131I-MIBG therapy, low 123I-MIBG uptake was observed in all selected NB xenografts. In conclusion, SSTR2 expression levels are associated with 68Ga-DOTA-TATE uptake and antitumor efficacy of 177Lu-DOTA-TATE. 68Ga-DOTA-TATE PET is superior to 123I-MIBG SPECT imaging in detecting NB tumors in our model. Radiolabeled DOTA-TATE can be used as an agent for NB tumor imaging to potentially discriminate tumors eligible for 177Lu-DOTA-TATE therapy.
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Chernov L, Deyell RJ, Anantha M, Dos Santos N, Gilabert‐Oriol R, Bally MB. Optimization of liposomal topotecan for use in treating neuroblastoma. Cancer Med 2017; 6:1240-1254. [PMID: 28544814 PMCID: PMC5463073 DOI: 10.1002/cam4.1083] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/29/2017] [Accepted: 04/03/2017] [Indexed: 12/20/2022] Open
Abstract
The purpose of this work was to develop an optimized liposomal formulation of topotecan for use in the treatment of patients with neuroblastoma. Drug exposure time studies were used to determine that topotecan (Hycamtin) exhibited great cytotoxic activity against SK-N-SH, IMR-32 and LAN-1 neuroblastoma human cell lines. Sphingomyelin (SM)/cholesterol (Chol) and 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC)/Chol liposomes were prepared using extrusion methods and then loaded with topotecan by pH gradient and copper-drug complexation. In vitro studies showed that SM/Chol liposomes retained topotecan significantly better than DSPC/Chol liposomes. Decreasing the drug-to-lipid ratio engendered significant increases in drug retention. Dose-range finding studies on NRG mice indicated that an optimized SM/Chol liposomal formulation of topotecan prepared with a final drug-to-lipid ratio of 0.025 (mol: mol) was better tolerated than the previously described DSPC/Chol topotecan formulation. Pharmacokinetic studies showed that the optimized SM/Chol liposomal topotecan exhibited a 10-fold increase in plasma half-life and a 1000-fold increase in AUC0-24 h when compared with Hycamtin administered at equivalent doses (5 mg/kg). In contrast to the great extension in exposure time, SM/Chol liposomal topotecan increased the life span of mice with established LAN-1 neuroblastoma tumors only modestly in a subcutaneous and systemic model. The extension in exposure time may still not be sufficient and the formulation may require further optimization. In the future, liposomal topotecan will be assessed in combination with high-dose radiotherapy such as 131 I-metaiodobenzylguanidine, and immunotherapy treatment modalities currently used in neuroblastoma therapy.
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Affiliation(s)
- Lina Chernov
- Experimental TherapeuticsBC Cancer Agency675 West 10 AvenueVancouverBritish ColumbiaV5Z 1L3Canada
- Department of Pathology and Laboratory MedicineUniversity of British Columbia2211 Wesbrook MallVancouverBritish ColumbiaV6T 2B5Canada
| | - Rebecca J. Deyell
- Division of Pediatric Hematology/OncologyBritish Columbia Children's Hospital and the University of British Columbia4480 Oak StreetVancouverBritish ColumbiaV6H 3V4Canada
- Michael Cuccione Childhood Cancer Research ProgramBritish Columbia Children's Hospital Research Institute950 West 28 AvenueVancouverBritish ColumbiaV5Z 4H4Canada
| | - Malathi Anantha
- Experimental TherapeuticsBC Cancer Agency675 West 10 AvenueVancouverBritish ColumbiaV5Z 1L3Canada
| | - Nancy Dos Santos
- Experimental TherapeuticsBC Cancer Agency675 West 10 AvenueVancouverBritish ColumbiaV5Z 1L3Canada
| | - Roger Gilabert‐Oriol
- Experimental TherapeuticsBC Cancer Agency675 West 10 AvenueVancouverBritish ColumbiaV5Z 1L3Canada
| | - Marcel B. Bally
- Experimental TherapeuticsBC Cancer Agency675 West 10 AvenueVancouverBritish ColumbiaV5Z 1L3Canada
- Department of Pathology and Laboratory MedicineUniversity of British Columbia2211 Wesbrook MallVancouverBritish ColumbiaV6T 2B5Canada
- Faculty of Pharmaceutical SciencesUniversity of British Columbia2405 Wesbrook MallVancouverBritish ColumbiaV6T 1Z3Canada
- Centre for Drug Research and Development4‐2405 Wesbrook MallVancouverBritish ColumbiaV6T 1Z3Canada
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Luna Pais H, Alho I, Vendrell I, Mansinho A, Costa L. Radionuclides in oncology clinical practice – review of the literature. Dalton Trans 2017; 46:14475-14487. [DOI: 10.1039/c7dt01929g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Radionuclide therapy is a promising type of targeted therapy for cancer and its use is becoming more common in several types of malignant tumors.
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Affiliation(s)
- Helena Luna Pais
- Medical Oncology Department
- Hospital de Santa Maria
- 1649-035 Lisbon
- Portugal
| | - Irina Alho
- Instituto de Medicina Molecular
- Faculdade de Medicina
- Universidade de Lisboa
- 1649-035 Lisbon
- Portugal
| | - Inês Vendrell
- Medical Oncology Department
- Hospital de Santa Maria
- 1649-035 Lisbon
- Portugal
| | - André Mansinho
- Medical Oncology Department
- Hospital de Santa Maria
- 1649-035 Lisbon
- Portugal
| | - Luís Costa
- Medical Oncology Department
- Hospital de Santa Maria
- 1649-035 Lisbon
- Portugal
- Instituto de Medicina Molecular
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44
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Bayer M, Schmitt J, Dittmann H, Handgretinger R, Bruchelt G, Sauter AW. Improved selectivity of mIBG uptake into neuroblastoma cells in vitro and in vivo by inhibition of organic cation transporter 3 uptake using clinically approved corticosteroids. Nucl Med Biol 2016; 43:543-551. [PMID: 27376201 DOI: 10.1016/j.nucmedbio.2016.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/09/2016] [Accepted: 05/25/2016] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Radiolabeled meta-iodobenzylguanidine (mIBG) is used for imaging and therapy of neuroblastoma as well as pheochromocytoma. However, non-tumorous tissues also incorporate mIBG mainly by organic cation transporters (OCTs). In this study, we tested different clinically approved corticosteroids as potential inhibitors of the OCT3-mediated uptake in vitro and in vivo, to achieve a more selective mIBG tumor uptake. METHODS The in vitro incorporation of [(3)H]norepinephrine ([(3)H]NE), [(3)H]dopamine ([(3)H]DA) and [(123)I]mIBG in neuroblastoma cells (SK-N-SH, Kelly, IMR-32) and in HEK-293 cells transfected with human OCT3 was measured with and without supplemental corticosteroids (hydrocortisone, prednisolone, dexamethasone, corticosterone). The in vivo biodistribution of [(123)I]mIBG in absence and presence of corticosteroids was studied in non-tumor bearing NOD scid gamma mice. Retrospectively, we selected patients with and without corticosteroid treatment prior to [(123)I]mIBG scintigraphy. RESULTS A concentration-dependent inhibitory effect of different corticosteroids on the [(3)H]NE and [(3)H]DA uptake via OCT3 was illustrated in vitro. The highest OCT3 inhibition was observed for corticosterone, but clinically used corticosteroids, showed also promising inhibitory effects. In contrast, the uptake in neuroblastoma cells was reduced only moderately. Hydrocortisone or prednisolone had only minor effects on [(123)I]mIBG uptake of both neuroblastoma cells, but reduced uptake in OCT3 expressing cells significantly. In mice tissues, [(123)I]mIBG uptake was inhibited by corticosteroids especially in the small intestine and kidney. Finally, in one patient with hydrocortisone treatment performed prior to [(123)I]mIBG scan, heart and liver uptake was reduced compared to untreated patients. CONCLUSIONS The OCT3 is widely spread in many organs and responsible for non-targeted uptake of radiolabeled mIBG. In our study, clinically approved corticosteroids inhibited mIBG uptake in OCT3 expressing cells effectively, whereas tracer accumulation in NT (norepinephrine transporter) expressing neuroblastoma cells showed consistency. We conclude, that a single dose of hydrocortisone or prednisolone prior to [(123)I]mIBG scintigraphy may improve specificity and reduce radiation dose to non-target organs.
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Affiliation(s)
- Melanie Bayer
- Eberhard Karls University, Children's Hospital, Department I, General Pediatrics & Hematology/Oncology, Tuebingen, Germany
| | - Julia Schmitt
- Eberhard Karls University, Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, Tuebingen, Germany
| | - Helmut Dittmann
- Eberhard Karls University, Department of Radiology, Nuclear Medicine, Tuebingen, Germany
| | - Rupert Handgretinger
- Eberhard Karls University, Children's Hospital, Department I, General Pediatrics & Hematology/Oncology, Tuebingen, Germany
| | - Gernot Bruchelt
- Eberhard Karls University, Children's Hospital, Department I, General Pediatrics & Hematology/Oncology, Tuebingen, Germany
| | - Alexander W Sauter
- Eberhard Karls University, Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, Tuebingen, Germany; Eberhard Karls University, Department of Radiology, Diagnostic and Interventional Radiology, Hoppe-Seyler-Str. 3, D-72076 Tuebingen, Germany.
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Parisi MT, Eslamy H, Park JR, Shulkin BL, Yanik GA. 131I-Metaiodobenzylguanidine Theranostics in Neuroblastoma: Historical Perspectives; Practical Applications. Semin Nucl Med 2016; 46:184-202. [DOI: 10.1053/j.semnuclmed.2016.02.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Pan ML, Mukherjee MT, Patel HH, Patel B, Constantinescu CC, Mirbolooki MR, Liang C, Mukherjee J. Evaluation of [11C]TAZA for amyloid β plaque imaging in postmortem human Alzheimer's disease brain region and whole body distribution in rodent PET/CT. Synapse 2016; 70:163-76. [PMID: 26806100 DOI: 10.1002/syn.21893] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Alzheimer's disease (AD) is a neurodegenerative disease characterized by Aβ plaques in the brain. The aim of this study was to evaluate the effectiveness of a novel radiotracer, 4-[(11) C]methylamino-4'-N,N-dimethylaminoazobenzene ([(11)C]TAZA), for binding to Aβ plaques in postmortem human brain (AD and normal control (NC)). METHODS Radiosyntheses of [(11)C]TAZA, related [(11)C]Dalene ((11)C-methylamino-4'-dimethylaminostyrylbenzene), and reference [(11)C]PIB were carried out using [(11)C]methyltriflate prepared from [(11) C]CO(2) and purified using HPLC. In vitro binding affinities were carried out in human AD brain homogenate with Aβ plaques labeled with [(3) H]PIB. In vitro autoradiography studies with the three radiotracers were performed on hippocampus of AD and NC brains. PET/CT studies were carried out in normal rats to study brain and whole body distribution. RESULTS The three radiotracers were produced in high radiochemical yields (>40%) and had specific activities >37 GBq/μmol. TAZA had an affinity, K(i) = 0.84 nM and was five times more potent than PIB. [(11)C]TAZA bound specifically to Aβ plaques present in AD brains with gray matter to white matter ratios >20. [(11)C]TAZA was displaced by PIB (>90%), suggesting similar binding site for [(11)C]TAZA and [(11)C]PIB. [(11)C]TAZA exhibited slow kinetics of uptake in the rat brain and whole body images showed uptake in interscapular brown adipose tissue (IBAT). Binding in brain and IBAT were affected by preinjection of atomoxetine, a norepinephrine transporter blocker. CONCLUSION [(11)C]TAZA exhibited high binding to Aβ plaques in human AD hippocampus. Rat brain kinetics was slow and peripheral binding to IBAT needs to be further evaluated.
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Affiliation(s)
- Min-Liang Pan
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
| | - Meenakshi T Mukherjee
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
| | - Himika H Patel
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
| | - Bhavin Patel
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
| | - Cristian C Constantinescu
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
| | - M Reza Mirbolooki
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
| | - Christopher Liang
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
| | - Jogeshwar Mukherjee
- Preclinical Imaging, Department of Radiological Sciences, University of California, Irvine, California, 92697
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Modak S, Zanzonico P, Carrasquillo JA, Kushner BH, Kramer K, Cheung NKV, Larson SM, Pandit-Taskar N. Arsenic Trioxide as a Radiation Sensitizer for 131I-Metaiodobenzylguanidine Therapy: Results of a Phase II Study. J Nucl Med 2016; 57:231-7. [PMID: 26742708 DOI: 10.2967/jnumed.115.161752] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 10/13/2015] [Indexed: 01/31/2023] Open
Abstract
UNLABELLED Arsenic trioxide has in vitro and in vivo radiosensitizing properties. We hypothesized that arsenic trioxide would enhance the efficacy of the targeted radiotherapeutic agent (131)I-metaiodobenzylguanidine ((131)I-MIBG) and tested the combination in a phase II clinical trial. METHODS Patients with recurrent or refractory stage 4 neuroblastoma or metastatic paraganglioma/pheochromocytoma (MP) were treated using an institutional review board-approved protocol (Clinicaltrials.gov identifier NCT00107289). The planned treatment was (131)I-MIBG (444 or 666 MBq/kg) intravenously on day 1 plus arsenic trioxide (0.15 or 0.25 mg/m(2)) intravenously on days 6-10 and 13-17. Toxicity was evaluated using National Cancer Institute Common Toxicity Criteria, version 3.0. Response was assessed by International Neuroblastoma Response Criteria or (for MP) by changes in (123)I-MIBG or PET scans. RESULTS Twenty-one patients were treated: 19 with neuroblastoma and 2 with MP. Fourteen patients received (131)I-MIBG and arsenic trioxide, both at maximal dosages; 2 patients received a 444 MBq/kg dose of (131)I-MIBG plus a 0.15 mg/kg dose of arsenic trioxide; and 3 patients received a 666 MBq/kg dose of (131)I-MIBG plus a 0.15 mg/kg dose of arsenic trioxide. One did not receive arsenic trioxide because of transient central line-induced cardiac arrhythmia, and another received only 6 of 10 planned doses of arsenic trioxide because of grade 3 diarrhea and vomiting with concurrent grade 3 hypokalemia and hyponatremia. Nineteen patients experienced myelosuppression higher than grade 2, most frequently thrombocytopenia (n = 18), though none required autologous stem cell rescue. Twelve of 13 evaluable patients experienced hyperamylasemia higher than grade 2 from transient sialoadenitis. By International Neuroblastoma Response Criteria, 12 neuroblastoma patients had no response and 7 had progressive disease, including 6 of 8 entering the study with progressive disease. Objective improvements in semiquantitative (131)I-MIBG scores were observed in 6 patients. No response was seen in MP. Seventeen of 19 neuroblastoma patients continued on further chemotherapy or immunotherapy. Mean 5-year overall survival (±SD) for neuroblastoma was 37% ± 11%. Mean absorbed dose of (131)I-MIBG to blood was 0.134 cGy/MBq, well below myeloablative levels in all patients. CONCLUSION (131)I-MIBG plus arsenic trioxide was well tolerated, with an adverse event profile similar to that of (131)I-MIBG therapy alone. The addition of arsenic trioxide to (131)I-MIBG did not significantly improve response rates when compared with historical data with (131)I-MIBG alone.
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Affiliation(s)
- Shakeel Modak
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Pat Zanzonico
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York; and
| | - Jorge A Carrasquillo
- Molecular Imaging and Therapy Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Brian H Kushner
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kim Kramer
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nai-Kong V Cheung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Steven M Larson
- Molecular Imaging and Therapy Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Neeta Pandit-Taskar
- Molecular Imaging and Therapy Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
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Vaidyanathan G, McDougald D, Koumarianou E, Choi J, Hens M, Zalutsky MR. Synthesis and evaluation of 4-[18F]fluoropropoxy-3-iodobenzylguanidine ([18F]FPOIBG): A novel 18F-labeled analogue of MIBG. Nucl Med Biol 2015; 42:673-84. [PMID: 25956997 PMCID: PMC4481138 DOI: 10.1016/j.nucmedbio.2015.04.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 04/10/2015] [Accepted: 04/13/2015] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Radioiodinated meta-iodobenzylguanidine (MIBG), a norepinephrine transporter (NET) substrate, has been extensively used as an imaging agent to study the pathophysiology of the heart and for the diagnosis and treatment of neuroendocrine tumors. The goal of this study was to develop an (18)F-labeled analogue of MIBG that like MIBG itself could be synthesized in a single radiochemical step. Towards this end, we designed 4-fluoropropoxy-3-iodobenzylguanidine (FPOIBG). METHODS Standards of FPOIBG and 4-fluoropropoxy-3-bromobenzylguanidine (FPOBBG) as well as their tosylate precursors for labeling with (18)F, and a tin precursor for the preparation of radioiodinated FPOIBG were synthesized. Radiolabeled derivatives were synthesized by nucleophilic substitution and electrophilic iododestannylation from the corresponding precursors. Labeled compounds were evaluated for NET transporter recognition in in vitro assays using three NET-expressing cell lines and in biodistribution experiments in normal mice, with all studies performed in a paired-label format. Competitive inhibition of [(125)I]MIBG uptake by unlabeled benzylguanidine compounds was performed in UVW-NAT cell line to determine IC50 values. RESULTS [(18)F]FPOIBG was synthesized from the corresponding tosylate precursor in 5.2 ± 0.5% (n = 6) overall radiochemical yields starting with aqueous fluoride in about 105 min. In a paired-label in vitro assay, the uptake of [(18)F]FPOIBG at 2h was 10.2 ± 1.5%, 39.6 ± 13.4%, and 13.3 ± 2.5%, in NET-expressing SK-N-SH, UVW-NAT, and SK-N-BE(2c) cells, respectively, while these values for [(125)I]MIBG were 57.3 ± 8.1%, 82.7 ± 8.9%, and 66.3 ± 3.6%. The specificity of uptake of both tracers was demonstrated by blocking with desipramine. The (125)I-labeled congener of FPOIBG gave similar results. On the other hand, [(18)F]FPOBBG, a compound recently reported in the literature, demonstrated much higher uptake, albeit less than that of co-incubated [(125)I]MIBG. IC50 values for FPOIBG were higher than those obtained for MIBG and FPOBBG. Unlike the case with [(18)F]FPOBBG, the heart uptake [(18)F]FPOIBG in normal mice was significantly lower than that of MIBG. CONCLUSION Although [(18)F]FPOIBG does not appear to warrant further consideration as an (18)F-labeled MIBG analogue, analogues wherein the iodine in it is replaced with a chlorine, fluorine or hydrogen might be worth pursuing. ADVANCES IN KNOWLEDGE AND IMPLICATIONS FOR PATIENT CARE An (18)F-labeled analogue of the well-known radiopharmaceutical MIBG could have significant impact, potentially improving imaging of NET related disease in cardiology and in the imaging of neuroendocrine tumors. Although (18)F-labeled analogues of MIBG have been reported including LMI1195, we undertook this work hypothesizing that based on its greater structural similarity to MIBG, FPOIBG might be a better analogue than LMI1195.
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Affiliation(s)
- Ganesan Vaidyanathan
- Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710.
| | - Darryl McDougald
- Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710
| | - Eftychia Koumarianou
- Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710
| | - Jaeyeon Choi
- Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710
| | - Marc Hens
- Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710
| | - Michael R Zalutsky
- Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710
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Villaverde G, Baeza A, Melen GJ, Alfranca A, Ramirez M, Vallet-Regí M. A new targeting agent for the selective drug delivery of nanocarriers for treating neuroblastoma. J Mater Chem B 2015; 3:4831-4842. [PMID: 32262672 DOI: 10.1039/c5tb00287g] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Novel targeting agents against neuroblastoma based on the meta-iodobenzylguanidine (MIBG) moiety were synthesized and biologically evaluated for nanocarrier vectorization. These compounds have been anchored on the surface of drug loaded mesoporous silica nanocarriers, resulting in the improved cellular uptake in tumoral cells. Neuroblastoma (NB) is the most frequent extracranial pediatric tumor. Advanced forms of the disease (metastatic and/or refractory) have a dismal prognosis despite the combination of chemotherapy, radiotherapy, surgery and bone narrow transplants. These treatments carry severe side effects and, in some cases, compromise the life of the patient. MIBG has been widely applied in the medical diagnosis of NB due to its affinity for tumor cells through the norepinephrine transporter (NET), which is expressed in 90% of NB tumors. The exclusive accumulation of MIBG in neuroblastoma has been widely studied; however, its properties have been never exploited as a targeting agent in nanocarrier drug delivery systems. Several structural analogues of MIBG have been prepared and attached on the surface of nanocarriers. Their selective internalization has been tested against human neuroblastoma cells, which show, in the best case, cellular uptake four times higher than that of the naked nanosystem. Furthermore, in vivo experiments showed preferential and selective accumulation and retention of the targeted nanosystem comparing with the naked and only PEGylated counterpart systems. This novel nanosystem could be easily applicable to all kinds of drug delivery nanocarriers, providing a universal tool for neuroblastoma chemotherapies that is superior to classical approaches through a novel nanosystem exclusively designed to target this terrible malignancy.
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Affiliation(s)
- Gonzalo Villaverde
- Dpto. Química Inorgánica y Bioinorgánica, Instituto de Investigación Sanitaria Hospital, Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 12 de Octubre i + 12.UCM, Madrid, Spain.
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