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Abellan-Pose R, Rodríguez-Évora M, Vicente S, Csaba N, Évora C, Alonso MJ, Delgado A. Biodistribution of radiolabeled polyglutamic acid and PEG-polyglutamic acid nanocapsules. Eur J Pharm Biopharm 2017; 112:155-163. [DOI: 10.1016/j.ejpb.2016.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 11/13/2016] [Indexed: 12/30/2022]
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Chauhan K, Arun A, Singh S, Manohar M, Chuttani K, Konwar R, Dwivedi A, Soni R, Singh AK, Mishra AK, Datta A. Bivalent Approach for Homodimeric Estradiol Based Ligand: Synthesis and Evaluation for Targeted Theranosis of ER(+) Breast Carcinomas. Bioconjug Chem 2016; 27:961-72. [PMID: 26999669 DOI: 10.1021/acs.bioconjchem.6b00024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis of estradiol based bivalent ligand [(EST)2DT] is reported and its potential for targeted imaging and therapy of ER(+) tumors has been evaluated. For the purpose, ethinylestradiol was functionalized with an azidoethylamine moiety via click chemistry. The resultant derivative was reacted in a bivalent mode with DTPA-dianhydride to form the multicoordinate chelating agent, (EST)2DT which displayed capability to bind (99m)Tc. The radiolabeled complex, (99m)Tc-(EST)2DT was obtained in >99% radiochemical purity and 20-48 GBq/μmol of specific activity. RBA assay revealed ∼15% binding with estrogen receptor. Evaluation of ligand on ER(+)-cell line (MCF-7) suggested enhanced and ER-mediated uptake. In vivo assays displayed early tracer accumulation in MCF-7 xenografts with tumor to muscle ratio ∼6 in 2 h and negligible uptakes in nontargeted organs. MTT assay performed on ER(+) and ER(-) cell lines displayed selective inhibition of ER(+) cancer cell growth with IC50 = 14.3 μM which was comparable to tamoxifen. The anticancer activity of the ligand is possibly due to the increase in ERβ and suppression of ERα protein levels in gene transcription. The studies reveal the potential of (EST)2DT as diagnostic imaging agent with the additional benefits in therapy.
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Affiliation(s)
- Kanchan Chauhan
- Institute of Nuclear Medicine & Allied Sciences, DRDO , Brig. SK Mazumdar Marg, Delhi-110054, India.,Department of Chemistry, Indian Institute of Technology , Delhi-110016, India
| | - Ashutosh Arun
- Endocrinology Division, CSIR-Central Drug Research Institute , Lucknow-226031, India
| | - Saurabh Singh
- Institute of Nuclear Medicine & Allied Sciences, DRDO , Brig. SK Mazumdar Marg, Delhi-110054, India
| | - Murli Manohar
- Endocrinology Division, CSIR-Central Drug Research Institute , Lucknow-226031, India
| | - Krishna Chuttani
- Institute of Nuclear Medicine & Allied Sciences, DRDO , Brig. SK Mazumdar Marg, Delhi-110054, India
| | - Rituraj Konwar
- Endocrinology Division, CSIR-Central Drug Research Institute , Lucknow-226031, India
| | - Anila Dwivedi
- Endocrinology Division, CSIR-Central Drug Research Institute , Lucknow-226031, India
| | - Ravi Soni
- Institute of Nuclear Medicine & Allied Sciences, DRDO , Brig. SK Mazumdar Marg, Delhi-110054, India
| | - Ajai Kumar Singh
- Department of Chemistry, Indian Institute of Technology , Delhi-110016, India
| | - Anil K Mishra
- Institute of Nuclear Medicine & Allied Sciences, DRDO , Brig. SK Mazumdar Marg, Delhi-110054, India
| | - Anupama Datta
- Institute of Nuclear Medicine & Allied Sciences, DRDO , Brig. SK Mazumdar Marg, Delhi-110054, India
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Synthesis and biological assessment of folate-accepted developer (99m)Tc-DTPA-folate-polymer. Bioorg Med Chem Lett 2016; 26:2547-2550. [PMID: 27072904 DOI: 10.1016/j.bmcl.2016.03.084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 03/09/2016] [Accepted: 03/25/2016] [Indexed: 11/21/2022]
Abstract
A novel cancer-targetable folate-poly(2-hydroxyethyl methacrylate) (PFDH) copolymer containing DTPA segment was prepared by conventional chemical synthesis and labeled with (99m)Tc subsequently. The (99m)Tc-labled PFDH could be produced easily with high radiochemical yield of 91% and radiochemical purity of 95%. The LogP octanol-water value for the (99m)Tc-labled PFDH was -2.19 and the radiotracer was stable in phosphate-buffered saline and human serum for 2h (>95% in PBS or ∼90% in human serum). To investigate (99m)Tc-labled PFDH tumor targeting, the in vitro and in vivo stability, cell uptake, in vivo biodistribution, and SPECT imaging were evaluated, respectively. These preliminary results strongly suggest that the novel folate conjugated dendrimer maybe developed to be potential for delivery of therapeutic radionuclides.
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Liu Y, Mei L, Yu Q, Xu C, Qiu Y, Yang Y, Shi K, Zhang Q, Gao H, Zhang Z, He Q. Multifunctional Tandem Peptide Modified Paclitaxel-Loaded Liposomes for the Treatment of Vasculogenic Mimicry and Cancer Stem Cells in Malignant Glioma. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16792-16801. [PMID: 26173814 DOI: 10.1021/acsami.5b04596] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The chemotherapy of aggressive glioma is usually accompanied by a poor prognosis because of the formation of vasculogenic mimicry (VM) and brain cancer stem cells (BCSCs). VM provided a transporting pathway for nutrients and blood to the extravascular regions of the tumor, and BCSCs were always related to drug resistance and the relapse of glioma. Thus, it is important to evaluate the inhibition effect of antiglioma drug delivery systems on both VM and BCSCs. In this study, paclitaxel-loaded liposomes modified with a multifunctional tandem peptide R8-c(RGD) (R8-c(RGD)-Lip) were used for the treatment of glioma. An in vitro cellular uptake study proved the strongest targeting ability to be that of R8-c(RGD)-Lip to glioma stem cells. Drug loaded R8-c(RGD)-Lip exhibited an efficient antiproliferation effect on BCSCs and could induce the destruction of VM channels in vitro. The following pharmacodynamics study demonstrated that R8-c(RGD)-modified drug-loaded liposomes achieved both anti-VM and anti-BCSC effects in vivo. Finally, no significant cytotoxicity of the blood system or major organs of the drug-loaded liposomes was observed under treatment dosage in the safety evaluation. In conclusion, all of the results proved that R8-c(RGD)-Lip was a safe and efficient antiglioma drug delivery system.
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Affiliation(s)
- Yayuan Liu
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Ling Mei
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Qianwen Yu
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Chaoqun Xu
- ‡Sichuan Academy of Chinese Medicine Sciences, No. 51, Block 4, Southern Renmin Road, Chengdu 610041, China
| | - Yue Qiu
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Yuting Yang
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Kairong Shi
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Qianyu Zhang
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Huile Gao
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Zhirong Zhang
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
| | - Qin He
- †Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China
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Cheng L, Hu Q, Cheng L, Hu W, Xu M, Zhu Y, Zhang L, Chen D. Construction and evaluation of PAMAM-DOX conjugates with superior tumor recognition and intracellular acid-triggered drug release properties. Colloids Surf B Biointerfaces 2015; 136:37-45. [PMID: 26360738 DOI: 10.1016/j.colsurfb.2015.04.003] [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: 10/13/2014] [Revised: 03/17/2015] [Accepted: 04/01/2015] [Indexed: 11/29/2022]
Abstract
An ideal drug delivery system for cancer therapy should be equipped with extended circulation, improved tumor targeting and controlled drug release, as well as low toxicity from the carrier. In this study, a multifunctional drug delivery system based on the PEGylated poly(amidoamine) (PAMAM) dendrimer was designed, and folate-PEGylation was applied to modify the dendrimer in order to enhance tumor selectivity. A series of acid-labile PAMAM-DOX conjugates (FPP-hyd-DOX) with different FA ligand ratios were successfully constructed. (1)H NMR, FTIR, DLS and TEM were used to describe the physicochemical characterization of PAMAM-DOX conjugates. Both in vitro drug release assay and subcellular localization, the conjugates exhibited an obvious pH-triggered drug release. The FPP-hyd-DOX 16/1 displayed much lower IC50 value than that of non-targeted PP-hyd-DOX. Through fluorescence microscopy and flow cytometry investigations, the cellular uptake of FPP-hyd-DOX 16/1 was obviously enhanced, compared with that of PP-hyd-DOX. The cellular uptake mechanism and subcellular localization study revealed that the conjugates were internalized by KB cells via FA receptor and clathrin co-mediated endocytosis, delivered to acidic lysosomes and triggered the release of DOX into nuclei to exert its cytotoxicity. These obtained results showed that FPP-hyd-DOX conjugations would be a promising drug delivery carrier for targeted cancer therapy.
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Affiliation(s)
- Lifang Cheng
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Qing Hu
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Liang Cheng
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Wen Hu
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Ming Xu
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Yaqin Zhu
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Lu Zhang
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Dawei Chen
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China; School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Ye T, Xu W, Shi T, Yang R, Yang X, Wang S, Pan W. Targeted delivery of docetaxel to the metastatic lymph nodes: A comparison study between nanoliposomes and activated carbon nanoparticles. Asian J Pharm Sci 2015. [DOI: 10.1016/j.ajps.2014.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Biodegradable polymeric vesicles containing magnetic nanoparticles, quantum dots and anticancer drugs for drug delivery and imaging. Biomaterials 2014; 35:3885-94. [PMID: 24495486 DOI: 10.1016/j.biomaterials.2014.01.041] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 01/16/2014] [Indexed: 01/10/2023]
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Singh I, Swami R, Khan W, Sistla R. Lymphatic system: a prospective area for advanced targeting of particulate drug carriers. Expert Opin Drug Deliv 2013; 11:211-29. [PMID: 24350774 DOI: 10.1517/17425247.2014.866088] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION The lymphatic system has a critical role in the immune system's recognition and response to disease and it is an additional circulatory system throughout the entire body. Extensive multidisciplinary investigations have been carried out in the area of lymphatic delivery, and lymphatic targeting has attracted a lot of attention for providing preferential chemotherapy and improving bioavailability of drugs that undergo hepatic first-pass metabolism. AREAS COVERED This review focuses on progress in the field of lymphatic therapeutics and diagnosis. Moreover, the anatomy and physiology of the lymphatic system, particulate drug carriers and different physicochemical parameters of both modified and unmodified particulate drug carriers and their effect on lymphatic targeting are addressed. EXPERT OPINION Particulate drug carriers have encouraged lymphatic targeting, but there are still challenges in targeting drugs and bioactives to specific sites, maintaining desired action and crossing all the physiological barriers. Lymphatic therapy using drug-encapsulated lipid carriers, especially liposomes and solid lipid nanoparticles, emerges as a new technology to provide better penetration into the lymphatics where residual disease exists. Size is the most important criteria when designing nanocarriers for targeting lymphatic vessels as the transportation of these particles into lymphatic vessels is size dependent. By increasing our understanding of lymphatic transport and uptake, and the role of lymphatics in various diseases, we can design new therapeutics for effective disease control.
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Affiliation(s)
- Indu Singh
- National Institute of Pharmaceutical Education & Research (NIPER), Department of Pharmaceutics , Hyderabad 500037 , India +91 40 27193004, +91 40 23073741 ; +91 40 27193753, +91 40 23073751 ; ;
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Abstract
The lymphatic system has a critical role in the immune system’s recognition and response to disease, and it is an additional circulatory system throughout the entire body. Most solid cancers primarily spread from the main site via the tumour’s surrounding lymphatics before haematological dissemination. Targeting drugs to lymphatic system is quite complicated because of its intricate physiology. Therefore, it tends to be an important target for developing novel therapeutics. Currently, nanocarriers have encouraged the lymphatic targeting, but still there are challenges of locating drugs and bioactives to specific sites, maintaining desired action and crossing all the physiological barriers. Lymphatic therapy using drug-encapsulated colloidal carriers especially liposomes and solid lipid nanoparticles emerges as a new technology to provide better penetration into the lymphatics where residual disease exists. Optimising the proper procedure, selecting the proper delivery route and target area and making use of surface engineering tool, better carrier for lymphotropic system can be achieved. Thus, new methods of delivering drugs and other carriers to lymph nodes are currently under investigation.
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Affiliation(s)
- Abraham J. Domb
- School of Pharmacy-Faculty of Medicine The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Wahid Khan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research (NIPER), Balanagar, Hyderabad, Andhra Pradesh India
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Multifunctional drug delivery system for targeting tumor and its acidic microenvironment. J Control Release 2012; 161:884-92. [DOI: 10.1016/j.jconrel.2012.05.013] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 04/20/2012] [Accepted: 05/05/2012] [Indexed: 11/17/2022]
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Ak G, Yurt Lambrecht F, Sanlier SH. Radiolabeling of folate targeted multifunctional conjugate with Technetium-99m and biodistribution studies in rats. J Drug Target 2012; 20:509-14. [DOI: 10.3109/1061186x.2012.686038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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LyP-1-conjugated PEGylated liposomes: A carrier system for targeted therapy of lymphatic metastatic tumor. J Control Release 2012; 157:118-25. [DOI: 10.1016/j.jconrel.2011.07.034] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 06/25/2011] [Accepted: 07/23/2011] [Indexed: 11/22/2022]
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Onursal M, Lambrecht FY, Ozgur A. Synthesis and biological evaluation of receptor-based tumor imaging agent: 99mTc-folate-glucaric acid. Int J Pharm 2011; 416:288-92. [DOI: 10.1016/j.ijpharm.2011.07.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Revised: 07/06/2011] [Accepted: 07/06/2011] [Indexed: 10/18/2022]
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Saraf S, Ghosh A, Kaur CD, Saraf S. Novel Modified Nanosystem Based Lymphatic Targeting. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/rjnn.2011.60.74] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Thorp-Greenwood FL, Coogan MP. Multimodal radio- (PET/SPECT) and fluorescence imaging agents based on metallo-radioisotopes: current applications and prospects for development of new agents. Dalton Trans 2011; 40:6129-43. [PMID: 21225080 DOI: 10.1039/c0dt01398f] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This perspective focuses on complexes of radioactive metal ions applied in multimodal radio- and optical imaging. The application of metal ions in radioimaging techniques such as Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT) has advantages over lighter nuclei in terms of half-life, but there are particular issues related to their speciation (particularly leaching from complexes) and with the combination of certain ions with fluorescent systems. The basic coordination chemistry of the ions involved and issues relating to biological conditions and their compatibility with optical imaging techniques are reviewed, the current literature presented in context, and the prospect of exploiting the intrinsic luminescence of certain metal-ligand complexes is discussed.
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Chen H, Li L, Cui S, Mahounga D, Zhang J, Gu Y. Folate Conjugated CdHgTe Quantum Dots with High Targeting Affinity and Sensitivity for In vivo Early Tumor Diagnosis. J Fluoresc 2010; 21:793-801. [DOI: 10.1007/s10895-010-0772-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Accepted: 11/01/2010] [Indexed: 12/20/2022]
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