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Sun Y, Wang Y, Guan L. A systematic analysis in efficacy and safety of nimotuzumab combined with chemoradiotherapy in treatment of advanced nasopharyngeal carcinoma. Eur Arch Otorhinolaryngol 2023; 280:1183-1190. [PMID: 36053358 DOI: 10.1007/s00405-022-07609-y] [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: 06/27/2022] [Accepted: 08/11/2022] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To analyze the clinical effect of nitorzumab injection combined with chemoradiotherapy in the treatment of advanced nasopharyngeal carcinoma. METHODS The databases, such as CNKI, Wanfang, VIP, China Biology Medicine (CBM), PubMed, Cochrane Library, Wiley Online Library, and Google Academic were searched. The randomized controlled trials (RCT) of nimotuzumab combined with concurrent chemoradiotherapy (experimental group) and concurrent chemoradiotherapy (control group) were searched. The between-group differences of objective remission rate (ORR), disease control rate (DCR), and drug-related adverse reactions were analyzed by RevMan5.3 software. RESULTS Totally, 11 studies were included in meta-analysis, including 655 patients. All 11 articles mentioned random grouping and no blind method was used. The objective remission rate, disease control rate, and adverse drug reactions are given in 11 articles. In this study, 11 literatures were analyzed by fixed effect model after heterogeneity and sensitivity analysis. The meta analysis showed that in 10 literatures, the objective remission rate and disease control rate of patients in the experimental group were significantly higher than those in the control group (RR = 1.32, 95% CI: 1.2-1.45, Z = 5.72, P < 0.00001); (RR = 1.07, 95% CI: 1.02-1.11, Z = 3.04, P = 0.002 < 0.01. There was no significant difference in adverse reactions between the two groups (RR = 0.95, 95% CI: 0.79-1.15, Z = 0.52, P = 0.6 > 0.05). CONCLUSION The efficacy and safety of nituozumab injection combined with concurrent chemoradiotherapy are reliable and definite.
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Affiliation(s)
- Yunqin Sun
- Sanquan College of Xinxiang Medical University, XinXiang, 453003, Henan Province, China
| | - Yaofeng Wang
- Sanquan College of Xinxiang Medical University, XinXiang, 453003, Henan Province, China
| | - Liping Guan
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453000, Henan Province, China.
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Zhuo L, Yang Y, Yue H, Xiong X, Wang G, Wang H, Yang L, Lin Q, Chen Q, Tu J, Wei H, Yang X, Kan W. Effective lutetium/ytterbium separation for no-carrier added lutetium-177 production. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08588-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kim MH, Kim SG, Kim DW. A novel dual-labeled small peptide as a multimodal imaging agent for targeting wild-type EGFR in tumors. PLoS One 2022; 17:e0263474. [PMID: 35120180 PMCID: PMC8815872 DOI: 10.1371/journal.pone.0263474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 01/19/2022] [Indexed: 11/29/2022] Open
Abstract
The epidermal growth factor receptor (EGFR) is over-expressed in various human cancer. The over-expression of EGFR in tumors is an excellent target for the development of cancer imaging agents. In the present study, we developed Tc-99m SYPIPDT-GHEG-ECG-K-tetramethylrhodamine (SYPIPDT-ECG-TAMRA) as a molecular imaging agent targeting wild-type EFGR (wtEGFR)-positive tumor cells, and verified its feasibility as molecular imaging agent. SYPIPDT-ECG-TAMRA was synthesized using Fmoc solid-phase peptide synthesis. The radiolabeling of SYPIPDT-ECG-TAMRA with Tc-99m was accomplished using ligand exchange via tartrate. Cellular uptake and binding affinity studies were performed. In vivo gamma camera imaging, ex vivo imaging and biodistribution studies were performed using NCI-H460 and SW620 tumor-bearing murine models. After radiolabeling procedures with Tc-99m, Tc-99m SYPIPDT-ECG-TAMRA complexes were prepared at high yield (> 95%). The binding affinity value (Kd) of Tc-99m SYPIPDT-ECG-TAMRA for NCI-H460 cells was estimated to be 76.5 ± 15.8 nM. In gamma camera imaging, the tumor to normal muscle uptake ratios of Tc-99m SYPIPDT-ECG-TAMRA increased with time (2.7 ± 0.6, 4.0 ± 0.9, and 6.2 ± 1.0 at 1, 2, and 3 h, respectively). The percentage injected dose per gram of wet tissue for the NCI-H460 tumor was 1.91 ± 0.11 and 1.70 ± 0.22 at 1 and 3 h, respectively. We developed Tc-99m SYPIPDT-ECG-TAMRA, which is dual-labeled with both radioisotope and fluorescence. In vivo and in vitro studies demonstrated specific uptake of Tc-99m SYPIPDT-ECG-TAMRA into wtEGFR-positive NCI-H460 cells and tumors. Thus, the results of the present study suggest that Tc-99m SYPIPDT-ECG-TAMRA is a potential dual-modality imaging agent targeting wtEGFR.
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Affiliation(s)
- Myoung Hyoun Kim
- Department of Nuclear Medicine and Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeollabuk-do, Korea
| | - Seul-Gi Kim
- Research Unit of Molecular Imaging Agent (RUMIA), Wonkwang University School of Medicine, Iksan, Jeollabuk-do, Korea
| | - Dae-Weung Kim
- Department of Nuclear Medicine and Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeollabuk-do, Korea
- Research Unit of Molecular Imaging Agent (RUMIA), Wonkwang University School of Medicine, Iksan, Jeollabuk-do, Korea
- * E-mail:
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Liu W, Li K, Deng H, Wang J, Zhao P, Liao W, Zhuo L, Wei H, Yang X, Chen Y. In vitro and in vivo evaluation of a novel anti-EGFR antibody labeled with 89Zr and 177Lu. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-021-08174-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Chizenga EP, Abrahamse H. Biological Therapy with Complementary and Alternative Medicine in Innocuous Integrative Oncology: A Case of Cervical Cancer. Pharmaceutics 2021; 13:626. [PMID: 33924844 PMCID: PMC8145806 DOI: 10.3390/pharmaceutics13050626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 02/06/2023] Open
Abstract
Good medicine is based on good science, inquiry driven and open to new paradigms. For a complex disease such as cancer, a complex treatment regime that is well structured and multifactorial is indispensable. In the present day, Complementary and Alternative Medicine (CAM) therapies are being used frequently for cancer, alongside modern biological therapies and allopathic medicine, in what is called integrative oncology. In all conscience, the use of natural, less invasive interventions whenever possible is ideal. However, a comprehensive understanding of not only the etiopathology of individual cancers, but also the detailed genetic and epigenetic characteristics, the cancer hallmarks, that clearly show the blueprint of the cancer phenotype is a requisite. Different tumors have a common behavioral pattern, but their specific features at the genetic and epigenetic levels vary to a great extent. Henceforth, with so many failed attempts to therapy, drug formulations and combinations need a focused pre-assessment of the inherent features of individual cancers to destroy the tumors holistically by targeting these features. This review therefore presents innocuous therapeutic regimes by means of CAM and integrative medicine approaches that can specifically target the hallmarks of cancer, using the case of cervical cancer.
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Affiliation(s)
| | - Heidi Abrahamse
- Laser Research Centre, University of Johannesburg, Johannesburg 2028, South Africa;
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Suman S, Priya R, Kameswaran M. Induction of different cellular arrest and molecular responses in low EGFR expressing A549 and high EGFR expressing A431 tumor cells treated with various doses of 177Lu-Nimotuzumab. Int J Radiat Biol 2020; 96:1144-1156. [PMID: 32657634 DOI: 10.1080/09553002.2020.1793012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Radioimmunotherapy (RIT) is a major anti-cancer therapy in cancer management multimodalities. 177Lu-Nimotuzumab has been in the use for radioimmunotherapy of EGFR expressing tumors. This study focuses on understanding the differential cellular and molecular mechanisms of anti-tumor effects of 177Lu-Nimotuzumab on low EGFR expressing A549 and high EGFR expressing A431 tumor cells. MATERIALS AND METHODS Nimotuzumab labeled with 177Lu was characterized by SE-HPLC. Specificity of 177Lu-Nimotuzumab to EGFR expressed on A549 and A431 cells was confirmed by competitive assay using increasing amounts of unlabeled Nimotuzumab. Cellular responses of A549 (low EGFR) and A431 (high EGFR) in response to different doses of 177Lu-Nimotuzumab were determined by Viable count assay for cellular viability, cell-cycle analysis by DNA staining, apoptotic assay for cell death, and CFSE dilution assay for cellular proliferation capacity. The number of DNA DSBs formed was determined using γ-H2AX assay with PI staining. Transcription of genes involved in DNA damage response and repair (DRR) pathways was monitored by RT-qPCR. RESULTS 177Lu-Nimotuzumab characterized by SE-HPLC exhibited a radiochemical purity of 99.1 ± 0.6%. Cell binding competition studies with 177Lu-Nimotuzumab showed specific binding of 34.3 ± 1.7% with A431 cells and 18.4 ± 1.9% with A549 cells which decreased when co-incubated with unlabeled Nimotuzumab. Cytotoxicity and DNA damage (DNA DSBs) increased with an increase in the dose of 177Lu-Nimotuzumab. A549 displayed G2/M arrest while A431 showed G1 arrest. Apoptotic death was determined to be one of the modes of death of arrested A549 and A431 cells which increases with the increase in the dose of 177Lu-Nimotuzumab. Loss of proliferation capacity was higher in A431 showed by CFSE staining at different doses of 177Lu-Nimotuzumab. Transcription profile of most DRR genes in A431 and A549 showed a decrease in the transcription at 4 h followed by recovery at 16 h post-treatment. The degree of transcription of most DRR genes was similar, irrespective of 177Lu-Nimotuzumab dose. CONCLUSION 177Lu-Nimotuzumab induces different cellular arrest and molecular responses in low EGFR expressing A549 and high EGFR expressing A431 tumor cells. This study would enable the development of integrative novel treatment strategies for radioimmunotherapy in low and high EGFR expressing tumors by 177Lu-Nimotuzumab with therapeutic gains.
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Affiliation(s)
- ShishuKant Suman
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Rashmi Priya
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Mythili Kameswaran
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
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Hermanto S, Haryuni RD, Ramli M, Mutalib A, Hudiyono S. Synthesis and stability test of radioimmunoconjugate 177Lu-DOTA-F(ab′)2-trastuzumab for theranostic agent of HER2 positive breast cancer. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2019. [DOI: 10.1016/j.jrras.2016.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sandra Hermanto
- Department of Chemistry, Faculty of Mathematics and Science, University of Indonesia, Depok, 16424, Indonesia
- Study Program of Chemistry, Faculty of Science and Technology, Syarif Hidayatullah State Islamic University, Jl. Ir, H. Juanda No. 95, Ciputat, Jakarta, 15412, Indonesia
| | - Ratna Dini Haryuni
- Centre for Radioisotopes and Radiopharmaceuticals, National Nuclear Energy Agency of Indonesia, Kawasan Puspiptek, Setu, Kota Tangerang Selatan, Banten, 15314, Indonesia
| | - Martalena Ramli
- Centre for Radioisotopes and Radiopharmaceuticals, National Nuclear Energy Agency of Indonesia, Kawasan Puspiptek, Setu, Kota Tangerang Selatan, Banten, 15314, Indonesia
| | - Abdul Mutalib
- Department of Chemistry, Faculty of Mathematics and Science, Padjadjaran University, Jl. Raya Bandung-Sumedang Km. 21, Jatinangor, Jawa Barat, Indonesia
| | - Sumi Hudiyono
- Department of Chemistry, Faculty of Mathematics and Science, University of Indonesia, Depok, 16424, Indonesia
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Preparation of 177Lu-Trastuzumab injection for treatment of breast cancer. Appl Radiat Isot 2019; 148:184-190. [PMID: 30974402 DOI: 10.1016/j.apradiso.2019.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 03/28/2019] [Accepted: 04/02/2019] [Indexed: 11/21/2022]
Abstract
The objective of this study was the facile preparation of 177Lu-CHX-A''-DTPA-Trastuzumab injection for breast cancer therapy. Trastuzumab conjugated with CHX-A''-DTPA-NCS was radiolabeled with 177Lu in >95% radiochemical purity. In vitro studies in SKBR3 and MDA-MB-453 cells confirmed specificity of 177Lu-CHX-A''-DTPA-Trastuzumab to HER2 positive cells. The radioimmunoconjugate showed good immunoreactivity, in vitro stability in saline and Kd of 1.01 ± 0.13 nM in SKBR3 cells. Clearance of 177Lu-CHX-A''-DTPA-Trastuzumab in Swiss mice was predominantly through the hepatobiliary route with minimal bone uptake.
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Pandey U, Kameswaran M, Gamre N, Dash A. Preparation of 177 Lu-labeled Nimotuzumab for radioimmunotherapy of EGFR-positive cancers: Comparison of DOTA and CHX-A″-DTPA as bifunctional chelators. J Labelled Comp Radiopharm 2019; 62:158-165. [PMID: 30663095 DOI: 10.1002/jlcr.3707] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 01/11/2019] [Indexed: 11/05/2022]
Abstract
This study was aimed at evaluating the role of bifunctional chelators DOTA-NCS and CHX-A″-DTPA-NCS used for conjugating 177 Lu with Nimotuzumab on the radiochemical yields, purity, in vitro stability, and specificity of the radioimmunoconjugates to EGFR. Two immunoconjugates were prepared wherein Nimotuzumab was conjugated with the acyclic ligand p-NCS-Bn-CHX-A″-DTPA and macrocyclic ligand p-NCS-Bn-DOTA. These were radiolabeled with 177 Lu, purified on PD-10 column, and characterized by SE-HPLC. In vitro stability was determined up to 4 days post preparation. Specificity of the radioimmunoconjugates was ascertained by in vitro studies in A431 cells while the biodistribution patterns were studied in normal Swiss mice up to 96 hours post injection. Four to five molecules of CHX-A″-DTPA/DOTA were attached to one molecule of Nimotuzumab. Radiochemical purity of both 177 Lu-CHX-A″-DTPA-Nimotuzumab and 177 Lu-DOTA-Nimotuzumab was determined to be greater than 98%. Both the radioimmunoconjugates exhibited good in vitro stability at 37°C up to 4 days post preparation in saline, and their clearance was largely by the hepatobiliary route. The DOTA- and CHX-A″-DTPA-based radioimmunoconjugates could be prepared with good radiochemical purity, in vitro stability, and specificity to EGFR. Further studies in EGFR-positive cancers would pave way for them for use in the clinics.
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Affiliation(s)
- Usha Pandey
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India.,Bhabha Atomic Research Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Mythili Kameswaran
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Naresh Gamre
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India.,Bhabha Atomic Research Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
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Tang Y, Hu Y, Liu W, Chen L, Zhao Y, Ma H, Yang J, Yang Y, Liao J, Cai J, Chen Y, Liu N. A radiopharmaceutical [ 89Zr]Zr-DFO-nimotuzumab for immunoPET with epidermal growth factor receptor expression in vivo. Nucl Med Biol 2019; 70:23-31. [PMID: 30826708 DOI: 10.1016/j.nucmedbio.2019.01.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/04/2019] [Accepted: 01/20/2019] [Indexed: 01/04/2023]
Abstract
INTRODUCTION The potential of the positron-emitting zirconium-89 (89Zr) (t1/2 = 78.4 h) has been recently reported for immune positron emission tomography (immunoPET) radioimmunoconjugates design. In our work, we explored the optimized preparation of [89Zr]Zr-DFO-nimotuzumab, and evaluated 89Zr-labeled monoclonal antibody (mAb) construct for targeted imaging of epidermal growth factor receptor (EGFR) overexpressed in glioma. METHODS To optimize the radiolabeling efficiency of 89Zr with DFO-nimotuzumab, multiple immunoconjugates and radiolabeling were performed. Radiolabeling yield, radiochemical purity, stability, and activity assay were investigated to characterize [89Zr]Zr-DFO-nimotuzumab for chemical and biological integrity. The in vivo behavior of this tracer was studied in mice bearing subcutaneous U87MG (EGFR-positive) tumors received a 3.5 ± 0.2 MBq/dose using PET/CT imaging. One group mice bearing subcutaneous U87MG (EGFR-positive) tumors received [89Zr]Zr-DFO-nimotuzumab (3.5 ± 0.2 MBq, ~3 μg) (nonblocking) for immunoPET; the other group had 30 μg predose (blocking) of cold nimotuzumab 24 h prior to [89Zr]Zr-DFO-nimotuzumab. RESULTS [89Zr]Zr-DFO-nimotuzumab was prepared with high radiochemical yield (>90%), radiochemical purity (>99%), and specific activity (115 ± 0.8 MBq/mg). In vitro validation showed that [89Zr]Zr-DFO-nimotuzumab had an initial immunoreactive fraction of 0.99 ± 0.05 and remained active for up to 5 days. A biodistribution study revealed excellent stability of [89Zr]Zr-DFO-nimotuzumab in vivo compared with 89Zr as a bone seeker. High uptake in the liver and heart and modest penetration in the brain were observed, with no significant accumulation of activity in other organs. ImmunoPET studies also indicated prominent image contrast that remarkably high uptake up to ~20%ID/g for nonblocking and ~2%ID/g for blocking in tumor between 12 and 120 h after administration. CONCLUSION These studies developed a radiopharmaceutical [89Zr]Zr-DFO-nimotuzumab with optimized synthesis. The potential utility of [89Zr]Zr-DFO-nimotuzumab in assessing EGFR status in glioma was demonstrated in this study.
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Affiliation(s)
- Yu Tang
- Key Laboratory of Radiation Physics and Technology (Sichuan University), Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China; Department of Nuclear Medicine, Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou 646000, PR China; Chengdu New Radiomedicine Technology Co. Ltd., Chengdu 610000, PR China
| | - Yingjiang Hu
- Key Laboratory of Radiation Physics and Technology (Sichuan University), Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
| | - Weihao Liu
- Key Laboratory of Radiation Physics and Technology (Sichuan University), Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
| | - Lin Chen
- Department of Nuclear Medicine, Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou 646000, PR China
| | - Yan Zhao
- Department of Nuclear Medicine, Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou 646000, PR China
| | - Huan Ma
- Chengdu New Radiomedicine Technology Co. Ltd., Chengdu 610000, PR China
| | - Jijun Yang
- Key Laboratory of Radiation Physics and Technology (Sichuan University), Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
| | - Yuanyou Yang
- Key Laboratory of Radiation Physics and Technology (Sichuan University), Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China.
| | - Jiali Liao
- Key Laboratory of Radiation Physics and Technology (Sichuan University), Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
| | - Jiming Cai
- Chengdu New Radiomedicine Technology Co. Ltd., Chengdu 610000, PR China
| | - Yue Chen
- Department of Nuclear Medicine, Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou 646000, PR China
| | - Ning Liu
- Key Laboratory of Radiation Physics and Technology (Sichuan University), Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China.
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Kameswaran M, Pandey U, Gamre N, Shinto A, Subramanian S, Sarma HD, Kamleshwaran KK, Dash A. Ready-to-use 177Lu-Rituximab injection for Non-Hodgkin’s Lymphoma: Formulation and preliminary clinical study. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6042-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Martins CD, Kramer-Marek G, Oyen WJG. Radioimmunotherapy for delivery of cytotoxic radioisotopes: current status and challenges. Expert Opin Drug Deliv 2017; 15:185-196. [PMID: 28893110 DOI: 10.1080/17425247.2018.1378180] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Radioimmunotherapy (RIT) with monoclonal antibodies and their fragments labelled with radionuclides emitting α -particles, β-particles or Auger electrons have been used for many years in the development of anticancer strategies. While RIT has resulted in approved radiopharmaceuticals for the treatment of hematological malignancies, its use in solid tumors still remains challenging. AREAS COVERED In this review, we discuss the exciting progress towards elucidating the potential of current and novel radioimmunoconjugates and address the challenges for translation into clinical practice. EXPERT OPINION There are still technical and logistical challenges associated with the use of RIT in routine clinical practice, including development of novel and more specific targeting moieties, broader access α to α-emitters and better tailoring of pre-targeting approaches. Moreover, improved understanding of the heterogeneous nature of solid tumors and the critical role of tumor microenvironments will help to optimize clinical response to RIT by delivering sufficient radiation doses to even more radioresistant tumor cells.
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Affiliation(s)
- Carlos Daniel Martins
- a Division of Radiotherapy and Imaging , The Institute of Cancer Research , London , UK
| | - Gabriela Kramer-Marek
- a Division of Radiotherapy and Imaging , The Institute of Cancer Research , London , UK
| | - Wim J G Oyen
- a Division of Radiotherapy and Imaging , The Institute of Cancer Research , London , UK.,b The Royal Marsden NHS Foundation Trust , Department of Nuclear Medicine , London , UK
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Kovacs L, Tassano M, Cabrera M, Zamboni CB, Fernández M, Anjos RM, Cabral P. Development of 177Lu-DOTA-Dendrimer and Determination of Its Effect on Metal and Ion Levels in Tumor Tissue. Cancer Biother Radiopharm 2015; 30:405-9. [DOI: 10.1089/cbr.2014.1675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Luciana Kovacs
- Centro do Reator de Pesquisas (CRPq), Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN - SP), São Paulo, Brasil
| | - Marcos Tassano
- Departamento de Radiofarmacia, Centro de Investigaciones Nucleares, Universidad de la República, Montevideo, Uruguay
| | - Mirel Cabrera
- Departamento de Radiofarmacia, Centro de Investigaciones Nucleares, Universidad de la República, Montevideo, Uruguay
| | - Cibele B. Zamboni
- Centro do Reator de Pesquisas (CRPq), Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN - SP), São Paulo, Brasil
| | - Marcelo Fernández
- Departamento de Radiofarmacia, Centro de Investigaciones Nucleares, Universidad de la República, Montevideo, Uruguay
| | - Roberto M. Anjos
- Instituto de Física, Universidade Federal Fluminense, Niterói, Brasil
| | - Pablo Cabral
- Departamento de Radiofarmacia, Centro de Investigaciones Nucleares, Universidad de la República, Montevideo, Uruguay
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Fichou N, Gouard S, Maurel C, Barbet J, Ferrer L, Morgenstern A, Bruchertseifer F, Faivre-Chauvet A, Bigot-Corbel E, Davodeau F, Gaschet J, Chérel M. Single-Dose Anti-CD138 Radioimmunotherapy: Bismuth-213 is More Efficient than Lutetium-177 for Treatment of Multiple Myeloma in a Preclinical Model. Front Med (Lausanne) 2015; 2:76. [PMID: 26582128 PMCID: PMC4631990 DOI: 10.3389/fmed.2015.00076] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 10/19/2015] [Indexed: 11/21/2022] Open
Abstract
Objectives Radioimmunotherapy (RIT) has emerged as a potential treatment option for multiple myeloma (MM). In humans, a dosimetry study recently showed the relevance of RIT using an antibody targeting the CD138 antigen. The therapeutic efficacy of RIT using an anti-CD138 antibody coupled to 213Bi, an α-emitter, was also demonstrated in a preclinical MM model. Since then, RIT with β-emitters has shown efficacy in treating hematologic cancer. In this paper, we investigate the therapeutic efficacy of RIT in the 5T33 murine MM model using a new anti-CD138 monoclonal antibody labeled either with 213Bi for α-RIT or 177Lu for β-RIT. Methods A new monoclonal anti-CD138 antibody, 9E7.4, was generated by immunizing a rat with a murine CD138-derived peptide. Antibody specificity was validated by flow cytometry, biodistribution, and α-RIT studies. Then, a β-RIT dose-escalation assay with the 177Lu-radiolabeled 9E7.4 mAb was performed in KalwRij C57/BL6 mice 10 days after i.v. engraftment with 5T33 MM cells. Animal survival and toxicological parameters were assessed to define the optimal activity. Results α-RIT performed with 3.7 MBq of 213Bi-labeled 9E7.4 anti-CD138 mAb increased median survival to 80 days compared to 37 days for the untreated control and effected cure in 45% of animals. β-RIT performed with 18.5 MBq of 177Lu-labeled 9E7.4 mAb was well tolerated and significantly increased mouse survival (54 vs. 37 days in the control group); however, no mice were cured with this treatment. Conclusion This study revealed the advantages of α-RIT in the treatment of MM in a preclinical model where β-RIT shows almost no efficacy.
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Affiliation(s)
- Nolwenn Fichou
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France
| | - Sébastien Gouard
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France
| | - Catherine Maurel
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France
| | - Jacques Barbet
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France
| | - Ludovic Ferrer
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France ; Institut de Cancérologie de l'Ouest , Saint-Herblain , France
| | | | | | - Alain Faivre-Chauvet
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France ; Nuclear Medicine Department, CHU Nantes , Nantes , France
| | - Edith Bigot-Corbel
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France
| | - François Davodeau
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France
| | - Joëlle Gaschet
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France
| | - Michel Chérel
- Centre Régional de Recherche en Cancérologie Nantes/Angers (CRCNA) - UMR 892 INSERM, Université de Nantes , Nantes , France ; CNRS 6299, Université de Nantes , Nantes , France ; Université de Nantes , Nantes , France ; Institut de Cancérologie de l'Ouest , Saint-Herblain , France
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16
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Kameswaran M, Pandey U, Dhakan C, Pathak K, Gota V, Vimalnath K, Dash A, Samuel G. Synthesis and Preclinical Evaluation of 177Lu-CHX-A”-DTPA-Rituximab as a Radioimmunotherapeutic Agent for Non-Hodgkin's Lymphoma. Cancer Biother Radiopharm 2015; 30:240-6. [DOI: 10.1089/cbr.2015.1836] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Mythili Kameswaran
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Usha Pandey
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Chetan Dhakan
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Center, Navi Mumbai, India
| | - Kamal Pathak
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Center, Navi Mumbai, India
| | - Vikram Gota
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Center, Navi Mumbai, India
| | - K.V. Vimalnath
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Ashutosh Dash
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Grace Samuel
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai, India
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17
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Dash A, Pillai MRA, Knapp FF. Production of (177)Lu for Targeted Radionuclide Therapy: Available Options. Nucl Med Mol Imaging 2015; 49:85-107. [PMID: 26085854 DOI: 10.1007/s13139-014-0315-z] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/20/2014] [Accepted: 12/23/2014] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND This review provides a comprehensive summary of the production of (177)Lu to meet expected future research and clinical demands. Availability of options represents the cornerstone for sustainable growth for the routine production of adequate activity levels of (177)Lu having the required quality for preparation of a variety of (177)Lu-labeled radiopharmaceuticals. The tremendous prospects associated with production of (177)Lu for use in targeted radionuclide therapy (TRT) dictate that a holistic consideration should evaluate all governing factors that determine its success. METHODS While both "direct" and "indirect" reactor production routes offer the possibility for sustainable (177)Lu availability, there are several issues and challenges that must be considered to realize the full potential of these production strategies. RESULTS This article presents a mini review on the latest developments, current status, key challenges and possibilities for the near future. CONCLUSION A broad understanding and discussion of the issues associated with (177)Lu production and processing approaches would not only ensure sustained growth and future expansion for the availability and use of (177)Lu-labeled radiopharmaceuticals, but also help future developments.
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Affiliation(s)
- Ashutosh Dash
- Isotope Production and Applications Division, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai 400 085 India
| | | | - Furn F Knapp
- Medical Isotopes Program, Isotope Development Group, Oak Ridge National Laboratory (ORNL), P.O. Box 2008, MS 6229, Bldg, 4501, 1 Bethel Valley Road,, Oak Ridge, TN 37831-6229 USA
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18
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You J, Zhao J, Wen X, Wu C, Huang Q, Guan F, Wu R, Liang D, Li C. Chemoradiation therapy using cyclopamine-loaded liquid-lipid nanoparticles and lutetium-177-labeled core-crosslinked polymeric micelles. J Control Release 2015; 202:40-8. [PMID: 25637565 DOI: 10.1016/j.jconrel.2015.01.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 01/16/2015] [Accepted: 01/26/2015] [Indexed: 12/12/2022]
Abstract
Cyclopamine (CPA), a potent inhibitor of the Hedgehog pathway, has produced promising anticancer results in a number of preclinical studies. CPA has also been found to enhance tumor response to radiation therapy. However, CPA is water insoluble. A drug delivery system suitable for systemic administration of CPA is needed before CPA can be considered for clinical translation. We hypothesized that CPA solubilized in a liquid-lipid nanoparticle system (CPA-LLP) for intravenous injection would have desirable pharmacokinetic properties and increased anticancer efficacy. We further hypothesized that CPA-LLP would enhance the response of tumor cells to targeted radiotherapy delivered selectively through intratumoral injection of lutetium-177 bound to core-crosslinked polymeric micelles (CCPM-(177)Lu). We tested the combination therapy in 4T1 murine breast cancer and Miapaca-2 human pancreatic adenocarcinoma models. The results showed that CPA-LLP had higher antitumor cytotoxicity than free CPA (IC50 values [mean±SEM]: 2.7±0.2μM vs. 11.3±1.2μM against 4T1 cells; 1.8±0.2 vs. 17.1±1.26μM against Miapaca-2 cells; p<0.0001). In both cell lines, CPA-LLP resulted in significantly lower clonogenicity than free CPA (p<0.05). Moreover, in both cell lines, CPA-LLP significantly enhanced the cell response to CCPM-(177)Lu radiotherapy as measured by clonogenic assay (p<0.05). In 4T1 and Miapaca-2 mouse xenograft models, the combination of CPA-LLP and CCPM-(177)Lu delayed tumor growth more than either monotherapy did alone. In the 4T1 tumor model, tumor size at 16days after treatment was significantly smaller with the combination therapy than with all the other treatments. In the Miapaca-2 model, the combination therapy resulted in the highest rate of mouse survival and prevented tumor relapse. In conclusion, the combination of CPA-LLP and CCPM-(177)Lu was an effective strategy for treating breast and pancreatic cancer and deserves further investigation.
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Affiliation(s)
- Jian You
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Jun Zhao
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Xiaoxia Wen
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Chunhui Wu
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Qian Huang
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Fada Guan
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Richard Wu
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Dong Liang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, 3100 Cleburne Street, Houston, TX 77004, USA
| | - Chun Li
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA.
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19
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Manzo-Merino J, Contreras-Paredes A, Vázquez-Ulloa E, Rocha-Zavaleta L, Fuentes-Gonzalez AM, Lizano M. The Role of Signaling Pathways in Cervical Cancer and Molecular Therapeutic Targets. Arch Med Res 2014; 45:525-39. [DOI: 10.1016/j.arcmed.2014.10.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 10/29/2014] [Indexed: 12/24/2022]
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20
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Watanabe S, Hashimoto K, Ishioka NS. Lutetium-177 complexation of DOTA and DTPA in the presence of competing metals. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3590-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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22
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Alonso Martínez LM, Xiques Castillo A, Calzada Falcón VN, Pérez-Malo Cruz M, Leyva Montaña R, Zamora Barrabí M, Hernández González I, León Pérez M, Arbesú Valdivia A. Development of 90Y-DOTA-nimotuzumab Fab fragment for radioimmunotherapy. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3402-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Saletta F, Wadham C, Ziegler DS, Marshall GM, Haber M, McCowage G, Norris MD, Byrne JA. Molecular profiling of childhood cancer: Biomarkers and novel therapies. BBA CLINICAL 2014; 1:59-77. [PMID: 26675306 PMCID: PMC4633945 DOI: 10.1016/j.bbacli.2014.06.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 06/16/2014] [Accepted: 06/24/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND Technological advances including high-throughput sequencing have identified numerous tumor-specific genetic changes in pediatric and adolescent cancers that can be exploited as targets for novel therapies. SCOPE OF REVIEW This review provides a detailed overview of recent advances in the application of target-specific therapies for childhood cancers, either as single agents or in combination with other therapies. The review summarizes preclinical evidence on which clinical trials are based, early phase clinical trial results, and the incorporation of predictive biomarkers into clinical practice, according to cancer type. MAJOR CONCLUSIONS There is growing evidence that molecularly targeted therapies can valuably add to the arsenal available for treating childhood cancers, particularly when used in combination with other therapies. Nonetheless the introduction of molecularly targeted agents into practice remains challenging, due to the use of unselected populations in some clinical trials, inadequate methods to evaluate efficacy, and the need for improved preclinical models to both evaluate dosing and safety of combination therapies. GENERAL SIGNIFICANCE The increasing recognition of the heterogeneity of molecular causes of cancer favors the continued development of molecularly targeted agents, and their transfer to pediatric and adolescent populations.
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Key Words
- ALK, anaplastic lymphoma kinase
- ALL, acute lymphoblastic leukemia
- AML, acute myeloid leukemia
- ARMS, alveolar rhabdomyosarcoma
- AT/RT, atypical teratoid/rhabdoid tumor
- AURKA, aurora kinase A
- AURKB, aurora kinase B
- BET, bromodomain and extra terminal
- Biomarkers
- CAR, chimeric antigen receptor
- CML, chronic myeloid leukemia
- Childhood cancer
- DFMO, difluoromethylornithine
- DIPG, diffuse intrinsic pontine glioma
- EGFR, epidermal growth factor receptor
- ERMS, embryonal rhabdomyosarcoma
- HDAC, histone deacetylases
- Hsp90, heat shock protein 90
- IGF-1R, insulin-like growth factor type 1 receptor
- IGF/IGFR, insulin-like growth factor/receptor
- Molecular diagnostics
- NSCLC, non-small cell lung cancer
- ODC1, ornithine decarboxylase 1
- PARP, poly(ADP-ribose) polymerase
- PDGFRA/B, platelet derived growth factor alpha/beta
- PI3K, phosphatidylinositol 3′-kinase
- PLK1, polo-like kinase 1
- Ph +, Philadelphia chromosome-positive
- RMS, rhabdomyosarcoma
- SHH, sonic hedgehog
- SMO, smoothened
- SYK, spleen tyrosine kinase
- TOP1/TOP2, DNA topoisomerase 1/2
- TRAIL, TNF-related apoptosis-inducing ligand
- Targeted therapy
- VEGF/VEGFR, vascular endothelial growth factor/receptor
- mAb, monoclonal antibody
- mAbs, monoclonal antibodies
- mTOR, mammalian target of rapamycin
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Affiliation(s)
- Federica Saletta
- Children's Cancer Research Unit, Kids Research Institute, Westmead 2145, New South Wales, Australia
| | - Carol Wadham
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Randwick 2031, New South Wales, Australia
| | - David S. Ziegler
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Randwick 2031, New South Wales, Australia
- Kids Cancer Centre, Sydney Children's Hospital, Randwick 2031, New South Wales, Australia
| | - Glenn M. Marshall
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Randwick 2031, New South Wales, Australia
- Kids Cancer Centre, Sydney Children's Hospital, Randwick 2031, New South Wales, Australia
| | - Michelle Haber
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Randwick 2031, New South Wales, Australia
| | - Geoffrey McCowage
- The Children's Hospital at Westmead, Westmead 2145, New South Wales, Australia
| | - Murray D. Norris
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Randwick 2031, New South Wales, Australia
| | - Jennifer A. Byrne
- Children's Cancer Research Unit, Kids Research Institute, Westmead 2145, New South Wales, Australia
- The University of Sydney Discipline of Paediatrics and Child Health, The Children's Hospital at Westmead, Westmead 2145, New South Wales, Australia
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24
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Novy Z, Laznickova A, Mandikova J, Barta P, Laznicek M, Trejtnar F. The effect of chelator type onin vitroreceptor binding and stability in177Lu-labeled cetuximab and panitumumab. J Labelled Comp Radiopharm 2014; 57:448-52. [DOI: 10.1002/jlcr.3204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 02/01/2014] [Accepted: 04/11/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Zbynek Novy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove; Charles University in Prague; Czech Republic
- Laboratory of Experimental Medicine, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry; Palacky University Olomouc; Czech Republic
| | - Alice Laznickova
- Department of Biophysics and Physical Chemistry, Faculty of Pharmacy in Hradec Kralove; Charles University in Prague; Czech Republic
| | - Jana Mandikova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove; Charles University in Prague; Czech Republic
| | - Pavel Barta
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove; Charles University in Prague; Czech Republic
| | - Milan Laznicek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove; Charles University in Prague; Czech Republic
| | - Frantisek Trejtnar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove; Charles University in Prague; Czech Republic
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25
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On the practical aspects of large-scale production of 177Lu for peptide receptor radionuclide therapy using direct neutron activation of 176Lu in a medium flux research reactor: the Indian experience. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3169-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Zhao X, Wang N, Ren X, Zhang J, Wang J, Han J, Jia L, Liu Y, Zhang Z. Preparation and Evaluation of (99m)Tc-Epidermal Growth Factor Receptor (EGFR)-Peptide Nucleic Acid for Visualization of EGFR Messenger RNA Expression in Malignant Tumors. J Nucl Med 2014; 55:1008-16. [PMID: 24744447 DOI: 10.2967/jnumed.113.136101] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2013] [Accepted: 03/11/2014] [Indexed: 01/29/2023] Open
Abstract
UNLABELLED Epidermal growth factor receptor (EGFR) is overexpressed in many carcinomas and remains a prime target for diagnostic and therapeutic applications. There is a need to develop noninvasive methods to identify the subset of patients that is most likely to benefit from EGFR-targeted treatment. Noninvasive imaging of EGFR messenger RNA (mRNA) expression may be a useful approach. The aim of this study was to develop a method for preparation of single-photon-emitting probes, (99m)Tc-labeled EGFR mRNA antisense peptide nucleic acid (PNA) ((99m)Tc-EGFR-PNA), and nontargeting control ((99m)Tc-CTL-PNA) and to evaluate their feasibility for imaging EGFR mRNA overexpression in malignant tumors in vivo. METHODS On the 5' terminus of synthesized single-stranded 17-mer antisense EGFR mRNA antisense PNA and mismatched PNA, a 4-amino-acid (Gly-(D)-Ala-Gly-Gly) linker forming an N4 structure was used for coupling (99m)Tc. Probes were labeled with (99m)Tc by ligand exchange. The radiochemical purity of these (99m)Tc-labeled probes was determined by reversed-phase high-performance liquid chromatography. Cellular uptake, retention, binding specificity, and stability of the probes were studied either in vitro or in vivo. Biodistribution and radionuclide imaging were performed in BALB/c nude mice bearing SKOV3 (EGFR-positive) or MDA-MB-435S (EGFR-negative) carcinoma xenografts, respectively. RESULTS The average labeling efficiencies of (99m)Tc-EGFR-PNA and (99m)Tc-CTL-PNA were 98.80% ± 1.14% and 98.63% ± 1.36% (mean ± SD, n = 6), respectively, within 6 h at room temperature, and the radiochemical purity of the probes was higher than 95%. (99m)Tc-EGFR-PNA was highly stable in normal saline and fresh human serum at 37°C in vitro and in urine and plasma samples of nude mice after 2-3 h of injection. Cellular uptake and retention ratios of (99m)Tc-EGFR-PNA in SKOV3 cells were higher than those of (99m)Tc-CTL-PNA and the EGFR-negative control. Meanwhile, EGFR mRNA binding (99m)Tc-EGFR-PNA was blocked with an excess of unlabeled EGFR-PNA in SKOV3 cell lines. The biodistribution study demonstrated accumulation of (99m)Tc-EGFR-PNA primarily in the SKOV3 xenografts and in EGFR-expressing organs. Radionuclide imaging demonstrated clear localization of (99m)Tc-EGFR-PNA in the SKOV3 xenografts shortly after injection but not in (99m)Tc-CTL-PNA and the EGFR-negative control. CONCLUSION (99m)Tc-EGFR-PNA has the potential for imaging EGFR mRNA overexpression in tumors.
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Affiliation(s)
- Xinming Zhao
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Na Wang
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiuchun Ren
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jingmian Zhang
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jianfang Wang
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jingya Han
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lizhuo Jia
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yunuan Liu
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhaoqi Zhang
- Department of Nuclear Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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27
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Barta P, Laznickova A, Laznicek M, Vera DRB, Beran M. Preclinical evaluation of radiolabelled nimotuzumab, a promising monoclonal antibody targeting the epidermal growth factor receptor. J Labelled Comp Radiopharm 2013; 56:280-8. [DOI: 10.1002/jlcr.2988] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Revised: 10/11/2012] [Accepted: 11/06/2012] [Indexed: 01/22/2023]
Affiliation(s)
- Pavel Barta
- Department of Pharmacology and Toxicology; Charles University in Prague; Czech Republic
| | - Alice Laznickova
- Department of Biophysics and Physical Chemistry; Charles University in Prague; Czech Republic
| | - Milan Laznicek
- Department of Pharmacology and Toxicology; Charles University in Prague; Czech Republic
| | - Denis Rolando Beckford Vera
- Department of Radiopharmacy; Nuclear Physics Institute of the Academy of Sciences; Husinec, Rez; Czech Republic
| | - Milos Beran
- Department of Radiopharmacy; Nuclear Physics Institute of the Academy of Sciences; Husinec, Rez; Czech Republic
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28
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Das T, Pillai M. Options to meet the future global demand of radionuclides for radionuclide therapy. Nucl Med Biol 2013; 40:23-32. [DOI: 10.1016/j.nucmedbio.2012.09.007] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/05/2012] [Accepted: 09/10/2012] [Indexed: 01/09/2023]
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29
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Beckford Vera DR, Eigner S, Eigner Henke K, Leyva Montaña R, Melichar F, Beran M. (177)Lu/ (90)Y intermediate-affinity monoclonal antibodies targeting EGFR and HER2/c-neu: preparation and preclinical evaluation. Recent Results Cancer Res 2013; 194:301-317. [PMID: 22918766 DOI: 10.1007/978-3-642-27994-2_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The epidermal growth factor receptor (EGFR) is a rational target of anticancer therapies due to its overexpression in a variety of malignant epithelial tumors. Nevertheless, this antigen is also present in normal tissues. Consequently, monoclonal antibodies which selectively bind to EGFR-overexpressing tumors will be choice drug candidates for development of radioimmunoconjugates (RIC). Nimotuzumab (h-R3) and trastuzumab are monoclonal antibodies (mAbs) which would preferentially target tissues with EGFR and HER2 overexpression, respectively. In this chapter, we describe preparation and evaluation of the targeting properties of RIC formed by (177)Lu/(90)Y and monoclonal antibodies which selectively target EGFR- and HER2/c-neu-overexpressing tissues. mAbs were labeled with n.c.a. (177)Lu/(90)Y using bifunctional chelating agents. RIC binding properties and toxicity were evaluated in vitro using cell lines with varying antigen expression. In vivo tumor targeting properties of RIC were evaluated in mice bearing colorectal (SNU-C2B) and A431 tumor xenografts. RICs were prepared with specific activities up to 2 GBq/mg without significant loss in biological activity. (90)Y-h-R3/trastuzumab increased cell growth inhibition compared with unmodified mAbs or (90)YCl(3) alone in cell lines with overexpression of the target antigen. (177)Lu-h-R3 showed significantly higher uptake in A431 (22.8 ± 3.1% ID/g) than in SNU-C2B (8.8 ± 4.1% ID/g) xenografts at 72 h post injection, indicating strong association between tumor uptake and EGFR expression levels.
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Affiliation(s)
- Denis R Beckford Vera
- Department of Radiopharmaceuticals, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
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30
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177Lu-nimotuzumab. Nucl Med Biol 2012; 39:891. [PMID: 22817873 DOI: 10.1016/j.nucmedbio.2012.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 01/26/2012] [Indexed: 11/21/2022]
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