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Jin X, Dong C, Zheng K, Shi X, Liu Y, Huo L, Wang F, Li F. Scintigraphic Imaging of Neovascularization With 99mTc-3PRGD 2 for Evaluating Early Response to Endostar Involved Therapies on Pancreatic Cancer Xenografts In Vivo. Front Oncol 2022; 11:792431. [PMID: 35769548 PMCID: PMC9236135 DOI: 10.3389/fonc.2021.792431] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/22/2021] [Indexed: 01/14/2023] Open
Abstract
Background Molecular imaging targeting angiogenesis can specifically monitor the early
therapeutic effect of antiangiogenesis therapy. We explore the predictive
values of an integrin αvβ3-targeted tracer,
99mTc-PEG4-E[PEG4-c(RGDfK)]2
(99mTc-3PRGD2), for monitoring the efficacy of
Endostar antiangiogenic therapy and chemotherapy in animal models. Methods The pancreatic cancer xenograft mice were randomly divided into four groups,
with seven animals in each group and treated in different groups with 10
mg/kg/day of Endostar, 10 mg/kg/day of gemcitabine, 10 mg/kg/day of Endostar
+10 mg/kg/day of gemcitabine at the same time, and the control group with
0.9% saline (0.1 ml/day). 99mTc-3PRGD2 scintigraphic
imaging was carried out to monitor therapeutic effects. Microvessel density
(MVD) was measured using immunohistochemical staining of the tumor tissues.
The region of interest (ROI) of tumor (T) and contralateral corresponding
site (NT) was delineated, and the ratio of radioactivity (T/NT) was
calculated. Two-way repeated-measure analysis of variance (ANOVA) was used
to assess differences between treatment groups. Results Tumor growth was significantly lower in treatment groups than that in the
control group (p < 0.05), and the differences were noted on day 28
posttreatment. The differences of 99mTc-3PRGD2 uptakes
were observed between the control group and Endostar group (p = 0.033) and
the combined treatment group (p < 0.01) on day 7 posttreatment and on day
14 posttreatment between the control group and gemcitabine group (p <
0.01). The accumulation of 99mTc-3PRGD2 was
significantly correlated with MVD (r = 0.998, p = 0.002). Conclusion With 99mTc-3PRGD2 scintigraphic imaging, the tumor
response to antiangiogenic therapy, chemotherapy, and the combined treatment
can be observed at an early stage of the treatments, much earlier than the
tumor volume change. It provides new opportunities for developing
individualized therapies and dose optimization.
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Affiliation(s)
- Xiaona Jin
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | | | - Kun Zheng
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Ximin Shi
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Yu Liu
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Li Huo
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Fan Wang
- Medical Isotopes Research Center, Peking University, Beijing, China
| | - Fang Li
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
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Paul B, Gaonkar RH, Mukhopadhyay R, Ganguly S, Debnath MC, Mukherjee B. Garcinol-loaded novel cationic nanoliposomes: in vitro and in vivo study against B16F10 melanoma tumor model. Nanomedicine (Lond) 2019; 14:2045-2065. [PMID: 31368402 DOI: 10.2217/nnm-2019-0022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Aim: Garcinol (GAR)-loaded cationic nanoliposomes were developed to achieve potential antitumor efficacy on B16F10 melanoma cells in vitro and in vivo. Materials & methods: Two different phospholipids namely, distearoyl phosphatidylcholine (DSPC) and dipalmitoyl phosphatidylcholine (DPPC) were used in formulation to elucidate the difference in cellular uptake, cytotoxicity, in vivo tumor uptake (by scintigraphic imaging after technetium-99m radiolabeling) and therapeutic efficacy. Results: Different in vitro protocols, for example, MTT assay, apoptosis study, gene expression analysis, chromatin condensation and cytoskeleton breakdown analysis in B16F10 cell lines as well as scintigraphic analysis and tumor inhibition studies (B16F10 tumor xenograft model) revealed superiority of GAR-DPPC than GAR-DSPC and free GAR in melanoma prevention. Conclusion: Cationic nanoliposomal formulations could be a future medication for skin cancer treatment.
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Affiliation(s)
- Brahamacharry Paul
- Infectious Diseases & Immunology Division, CSIR- Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Raghuvir H Gaonkar
- Infectious Diseases & Immunology Division, CSIR- Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Ria Mukhopadhyay
- Infectious Diseases & Immunology Division, CSIR- Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Shantanu Ganguly
- Regional Radiation Medicine Center, Thakurpukur Cancer Center & Welfare Home Campus, Kolkata 700063, India
| | - Mita Chatterjee Debnath
- Infectious Diseases & Immunology Division, CSIR- Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Biswajit Mukherjee
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
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Kostopoulou A, Brintakis K, Fragogeorgi E, Anthousi A, Manna L, Begin-Colin S, Billotey C, Ranella A, Loudos G, Athanassakis I, Lappas A. Iron Oxide Colloidal Nanoclusters as Theranostic Vehicles and Their Interactions at the Cellular Level. Nanomaterials (Basel) 2018; 8:E315. [PMID: 29747449 PMCID: PMC5977329 DOI: 10.3390/nano8050315] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/04/2018] [Accepted: 05/04/2018] [Indexed: 01/10/2023]
Abstract
Advances in surfactant-assisted chemical approaches have led the way for the exploitation of nanoscale inorganic particles in medical diagnosis and treatment. In this field, magnetically-driven multimodal nanotools that perform both detection and therapy, well-designed in size, shape and composition, are highly advantageous. Such a theranostic material—which entails the controlled assembly of smaller (maghemite) nanocrystals in a secondary motif that is highly dispersible in aqueous media—is discussed here. These surface functionalized, pomegranate-like ferrimagnetic nanoclusters (40⁻85 nm) are made of nanocrystal subunits that show a remarkable magnetic resonance imaging contrast efficiency, which is better than that of the superparamagnetic contrast agent Endorem©. Going beyond this attribute and with their demonstrated low cytotoxicity in hand, we examine the critical interaction of such nanoprobes with cells at different physiological environments. The time-dependent in vivo scintigraphic imaging of mice experimental models, combined with a biodistribution study, revealed the accumulation of nanoclusters in the spleen and liver. Moreover, the in vitro proliferation of spleen cells and cytokine production witnessed a size-selective regulation of immune system cells, inferring that smaller clusters induce mainly inflammatory activities, while larger ones induce anti-inflammatory actions. The preliminary findings corroborate that the modular chemistry of magnetic iron oxide nanoclusters stimulates unexplored pathways that could be driven to alter their function in favor of healthcare.
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Affiliation(s)
- Athanasia Kostopoulou
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
| | - Konstantinos Brintakis
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
| | - Eirini Fragogeorgi
- Institute of Nuclear & Radiological Sciences, Technology, Energy & Safety, NCSR "Demokritos", 153 41 Aghia Paraskevi, Athens, Greece.
| | - Amalia Anthousi
- Department of Biology, University of Crete, Vassilika Vouton, 710 03 Heraklion, Greece.
| | - Liberato Manna
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
| | - Sylvie Begin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.
| | - Claire Billotey
- Université de Lyon, Université Jean Monnet, EA 3738, Ciblage Thérapeutique en Oncologie, UJM-UCBL-HCL, Hôpital E. Herriot, 5 place d'Arsonval, 69437 Lyon CEDEX 03, France.
| | - Anthi Ranella
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
| | - George Loudos
- Bioemission Technology Solutions, Alexandras 116, 117 42 Athens, Greece.
- Department of Biomedical Engineering, Technological Educational Institute, 122 10 Egaleo, Athens, Greece.
| | - Irene Athanassakis
- Department of Biology, University of Crete, Vassilika Vouton, 710 03 Heraklion, Greece.
| | - Alexandros Lappas
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
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Abstract
Technetium-99m (99mTc) is extensively used in nuclear medicine, mostly used to label radiopharmaceuticals and in radio diagnostics. In the present study, we directly radiolabeled mannan with 99mTc by using Tin(II) Chloride Dihydrate (SnCl2·2H2O) as a reducing agent. Mannan, a TLR agonist is a complex carbohydrate identified as a potential modulator of biological effects of ionizing radiation, both in vitro and in vivo, in our laboratory. Under in vivo conditions mannan modulates radiation response when administered through either oral or parenteral routes. The present study aims to understand the pharmacologic biodistribution of the 99mTc-mannan complex in mice (via oral, i.p. and i.v. routes) using non-invasive scintigraphic imaging and invasive radiometry. Qualitative and quantitative analysis of 99mTc-mannan complex was performed by ITLC-SG, ascending paper chromatography. Radio-complexation efficiency of >98% was consistently achieved with hydrolyzed reduced Tc-99m being 1-2%. We confirmed stability of complex in saline and serum up to 24 h at room temperature. Biodistribution studies were performed using the above radiocomplex in BALB/c mice and 99mTc-mannan complex was administered though oral, i.p. and i.v. routes. To our expectations, most of the radioactivity accumulated in stomach and small intestine in mice with oral administration, along with insignificant activity in the remaining studied organs. It suggests that 99mTc-mannan complex did not get absorbed from the gut and was removed as such in the fecal material. On the contrary, i.p. and i.v administration of mannan resulted in significant accumulation of the 99mTc-mannan complex in kidney, liver, intestine, lungs, spleen, bone marrow, blood and heart, at both 1 h and 4 h after i.v. administration. The remaining organs (stomach, testis and muscles) showed lower accumulation of the 99mTc-mannan complex. 99mTc-mannan complex was adminstered (i.v.) in New Zealand white rabbits and it was evident from the scintigraphic images that mannan cleared very rapidly from the administration site and reached into systemic circulation. No activity in the thyroid, salivary gland, or gastric mucosa suggests an insignificant amount of free pertechnetate in the 99mTc-complex preparation, further confirming the in vivo stability of the radiolabeled mannan complex. Significant amount of radioactivity in liver, intestine and kidneys suggests hepatobiliary as well as renal routes of clearance. The bio-availability of the complex varies with the route of administration. An entirely different biodistribution pattern exists when the same molecule is administered through oral or parenteral route. Our study is the first step towards a better understanding of the mechanisms involved in radiation modulation offered by mannan administration, in vivo.
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Affiliation(s)
- Sweta Sanguri
- Division of Metabolic Cell Signaling Research, Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization (DRDO), Brig SK Mazumdar Marg, Timarpur, Delhi 110054, India
| | - Damodar Gupta
- Division of Metabolic Cell Signaling Research, Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization (DRDO), Brig SK Mazumdar Marg, Timarpur, Delhi 110054, India
| | - Thakuri Singh
- Division of Metabolic Cell Signaling Research, Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization (DRDO), Brig SK Mazumdar Marg, Timarpur, Delhi 110054, India
| | - Ajay K Singh
- Division of Metabolic Cell Signaling Research, Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization (DRDO), Brig SK Mazumdar Marg, Timarpur, Delhi 110054, India
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Ferreira DDS, Boratto FA, Cardoso VN, Serakides R, Fernandes SO, Ferreira LAM, Oliveira MC. Alendronate-coated long-circulating liposomes containing 99mtechnetium-ceftizoxime used to identify osteomyelitis. Int J Nanomedicine 2015; 10:2441-50. [PMID: 25848262 PMCID: PMC4381632 DOI: 10.2147/ijn.s76168] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Osteomyelitis is a progressive destruction of bones caused by microorganisms. Inadequate or absent treatment increases the risk of bone growth inhibition, fractures, and sepsis. Among the diagnostic techniques, functional images are the most sensitive in detecting osteomyelitis in its early stages. However, these techniques do not have adequate specificity. By contrast, radiolabeled antibiotics could improve selectivity, since they are specifically recognized by the bacteria. The incorporation of these radiopharmaceuticals in drug-delivery systems with high affinity for bones could improve the overall uptake. In this work, long-circulating and alendronate-coated liposomes containing 99mtechnetium-radiolabeled ceftizoxime were prepared and their ability to identify infectious foci (osteomyelitis) in animal models was evaluated. The effect of the presence of PEGylated lipids and surface-attached alendronate was evaluated. The bone-targeted long-circulating liposomal 99mtechnetium–ceftizoxime showed higher uptake in regions of septic inflammation than did the non-long-circulating and/or alendronate-non-coated liposomes, showing that both the presence of PEGylated lipids and alendronate coating are important to optimize the bone targeting. Scintigraphic images of septic or aseptic inflammation-bearing Wistar rats, as well as healthy rats, were acquired at different time intervals after the intravenous administration of these liposomes. The target-to-non-target ratio proved to be significantly higher in the osteomyelitis-bearing animals for all investigated time intervals. Biodistribution studies were also performed after the intravenous administration of the formulation in osteomyelitis-bearing animals. A significant amount of liposomes were taken up by the organs of the mononuclear phagocyte system (liver and spleen). Intense renal excretion was also observed during the entire experiment period. Moreover, the liposome uptake by the infectious focus was significantly high. These results show that long-circulating and alendronate-coated liposomes containing 99mtechnetium-radiolabeled ceftizoxime have a tropism for infectious foci.
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Affiliation(s)
| | - Fernanda Alves Boratto
- Department of Pharmaceutical Products, Faculty of Pharmacy, Belo Horizonte, Minas Gerais, Brazil
| | - Valbert Nascimento Cardoso
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Belo Horizonte, Minas Gerais, Brazil
| | - Rogéria Serakides
- Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Simone Odília Fernandes
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Belo Horizonte, Minas Gerais, Brazil
| | | | - Mônica Cristina Oliveira
- Department of Pharmaceutical Products, Faculty of Pharmacy, Belo Horizonte, Minas Gerais, Brazil
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Tsiapa I, Loudos G, Fragogeorgi EA, Bouziotis P, Psimadas D, Xanthopoulos S, Paravatou-Petsotas M, Palamaris L, Varvarigou AD, Karnabatidis D, Kagadis GC. Evaluation of ανβ3-mediated tumor expression with a 99mTc-labeled ornithine-modified RGD derivative during glioblastoma growth in vivo. Cancer Biother Radiopharm 2014; 29:444-50. [PMID: 25405951 DOI: 10.1089/cbr.2014.1672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In this study, a novel way of distinguishing the intrinsic relationship between ανβ3 integrin targeting and detection of tumor growth by using a radiolabeled tracer based on a cyclic Arg-Gly-Asp (RGD) peptide was provided. The potential of the in vivo scintigraphic imaging of the developing vasculature from the early stage of tumor growth was evaluated. Alongside with the scintigraphic images, biodistribution studies were performed at distinct time points to validate this noninvasive imaging approach. The ability to noninvasively assess the tumor growth of ανβ3 integrin-positive glioblastoma tumors provides a method to better understand tumor angiogenesis in vivo and allows for a direct assessment of anti-integrin treatment efficacy.
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Affiliation(s)
- Irene Tsiapa
- 1 Department of Medical Physics, School of Medicine, University of Patras , Rion, Greece
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Wickstrom E, Thakur ML. Imaging cancer gene activity in patients from outside the body. Biotechnol Healthc 2006; 3:45-48. [PMID: 23423635 PMCID: PMC3571036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Is the lump malignant or benign? The investigators propose to answer this question by injecting a nuclear medicine gene probe into patients with suspicious lumps in their breasts. They then use scanning techniques to see if active cancer genes light up.
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Affiliation(s)
- Eric Wickstrom
- Laboratory of Nucleic Acid Therapeutics, Department of Biochemistry and Molecular Biology
| | - Mathew L. Thakur
- Laboratory of Radiopharmaceutical Research, Department of Radiology
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