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Sidorenko GV, Miroslavov AE, Tyupina MY. Technetium(I) carbonyl complexes for nuclear medicine: Coordination-chemical aspect. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Folate-based radiotracers for nuclear imaging and radionuclide therapy. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Kim TE, Jang HJ, Park SW, Wei J, Cho S, Park WI, Lee BR, Yang CD, Jung YK. Folic Acid Functionalized Carbon Dot/Polypyrrole Nanoparticles for Specific Bioimaging and Photothermal Therapy. ACS APPLIED BIO MATERIALS 2021; 4:3453-3461. [PMID: 35014429 DOI: 10.1021/acsabm.1c00018] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polypyrrole nanoparticles (PPy-NPs) with excellent near-infrared absorption are commonly used as photothermal therapy (PTT) agents; however, PTT using PPy-NPs has a limitation in that it is difficult to maximize their therapeutic effect because of the lack of specific targeting. In this study, to overcome the difficulty of targeting, folic acid functionalized carbon dots (FA-CDs) with bright green fluorescence properties were combined with carboxylated PPy-NPs via the EDC/NHS coupling reaction to yield a PTT imaging agent. The synthesized FA-CD/PPy-NPs with excellent photostability performed folate receptor (FR) positive HeLa cancer cell imaging by green fluorescence signals of FA-CDs and exhibited high cell viability (above 90%) even at 500 μg/mL. The viability of HeLa cells incubated with 200 μg/mL FA-CD/PPy-NPs was dramatically decreased to 25.02 ± 1.85% by NIR laser irradiation, through photothermal therapeutic effects of FA-CD/PPy-NPs with high photothermal conversion efficiency (η = 40.80 ± 1.54%). The cancer cell death by FA-CD/PPy-NPs was confirmed by fluorescence imaging of FA-CDs as well as live/dead cell staining assay (calcein-AM/PI). These results demonstrate that the FA-CD/PPy-NPs can be utilized as multifunctional theranostic agents for specific bioimaging and treatment of FR-positive cancer cells.
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Affiliation(s)
- Tae Eun Kim
- School of Biomedical Engineering & Department of Nanoscience and Engineering, Inje University, Gimhae, 50834, Republic of Korea
| | - Hyeon Jeong Jang
- School of Biomedical Engineering & Department of Nanoscience and Engineering, Inje University, Gimhae, 50834, Republic of Korea
| | - Seok Won Park
- School of Biomedical Engineering & Department of Nanoscience and Engineering, Inje University, Gimhae, 50834, Republic of Korea
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Shinuk Cho
- Department of Physics and EHSRC, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Woon Ik Park
- Department of Materials Science and Engineering, Pukyong National University, Pusan, 48513, Republic of Korea
| | - Bo Ram Lee
- Department of Physics, Pukyong National University, Busan, 48513, Republic of Korea
| | - Chang Duk Yang
- Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea
| | - Yun Kyung Jung
- School of Biomedical Engineering & Department of Nanoscience and Engineering, Inje University, Gimhae, 50834, Republic of Korea
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4
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Lim K, Kim HK, Le XT, Nguyen NT, Lee ES, Oh KT, Choi HG, Youn YS. Highly Red Light-Emitting Erbium- and Lutetium-Doped Core-Shell Upconverting Nanoparticles Surface-Modified with PEG-Folic Acid/TCPP for Suppressing Cervical Cancer HeLa Cells. Pharmaceutics 2020; 12:E1102. [PMID: 33212942 PMCID: PMC7698343 DOI: 10.3390/pharmaceutics12111102] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 12/21/2022] Open
Abstract
Photodynamic therapy (PDT) combined with upconverting nanoparticles (UCNPs) are viewed together as an effective method of ablating tumors. After absorbing highly tissue-penetrating near-infrared (NIR) light, UCNPs emit a shorter wavelength light (~660 nm) suitable for PDT. In this study, we designed and prepared highly red fluorescence-emitting silica-coated core-shell upconverting nanoparticles modified with polyethylene glycol (PEG5k)-folic acid and tetrakis(4-carboxyphenyl)porphyrin (TCPP) (UCNPs@SiO2-NH2@FA/PEG/TCPP) as an efficient photodynamic agent for killing tumor cells. The UCNPs consisted of two simple lanthanides, erbium and lutetium, as the core and shell, respectively. The unique core-shell combination enabled the UCNPs to emit red light without green light. TCPP, folic acid, and PEG were conjugated to the outer silica layer of UCNPs as a photosensitizing agent, a ligand for tumor attachment, and a dispersing stabilizer, respectively. The prepared UCNPs of ~50 nm diameter and -34.5 mV surface potential absorbed 808 nm light and emitted ~660 nm red light. Most notably, these UCNPs were physically well dispersed and stable in the aqueous phase due to PEG attachment and were able to generate singlet oxygen (1O2) with a high efficacy. The HeLa cells were treated with each UCNP sample (0, 1, 5, 10, 20, 30 μg/mL as a free TCPP). The results showed that the combination of UCNPs@SiO2-NH2@FA/PEG/TCPP and the 808 nm laser was significantly cytotoxic to HeLa cells, almost to the same degree as naïve TCPP plus the 660 nm laser based on MTT and Live/Dead assays. Furthermore, the UCNPs@SiO2-NH2@FA/PEG/TCPP was well internalized into HeLa cells and three-dimensional HeLa spheroids, presumably due to the surface folic acid and small size in conjunction with endocytosis and the nonspecific uptake. We believe that our UCNPs@SiO2-NH2@FA/PEG/TCPP will serve as a new platform for highly efficient and deep-penetrating photodynamic agents suitable for various tumor treatments.
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Affiliation(s)
- Kyungseop Lim
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea; (K.L.); (H.K.K.); (X.T.L.); (N.T.N.)
| | - Hwang Kyung Kim
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea; (K.L.); (H.K.K.); (X.T.L.); (N.T.N.)
| | - Xuan Thien Le
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea; (K.L.); (H.K.K.); (X.T.L.); (N.T.N.)
| | - Nguyen Thi Nguyen
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea; (K.L.); (H.K.K.); (X.T.L.); (N.T.N.)
| | - Eun Seong Lee
- Division of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do 14662, Korea;
| | - Kyung Taek Oh
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea;
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Korea;
| | - Yu Seok Youn
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea; (K.L.); (H.K.K.); (X.T.L.); (N.T.N.)
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5
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Kost B, Brzeziński M, Socka M, Baśko M, Biela T. Biocompatible Polymers Combined with Cyclodextrins: Fascinating Materials for Drug Delivery Applications. Molecules 2020; 25:E3404. [PMID: 32731371 PMCID: PMC7435941 DOI: 10.3390/molecules25153404] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022] Open
Abstract
Cyclodextrins (CD) are a group of cyclic oligosaccharides with a cavity/specific structure that enables to form inclusion complexes (IC) with a variety of molecules through non-covalent host-guest interactions. By an elegant combination of CD with biocompatible, synthetic and natural polymers, different types of universal drug delivery systems with dynamic/reversible properties have been generated. This review presents the design of nano- and micro-carriers, hydrogels, and fibres based on the polymer/CD supramolecular systems highlighting their possible biomedical applications. Application of the most prominent hydrophobic aliphatic polyesters that exhibit biodegradability, represented by polylactide and polycaprolactone, is described first. Subsequently, particular attention is focused on materials obtained from hydrophilic polyethylene oxide. Moreover, examples are also presented for grafting of CD on polysaccharides. In summary, we show the application of host-guest interactions in multi-component functional biomaterials for controlled drug delivery.
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Affiliation(s)
- Bartłomiej Kost
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (M.S.); (M.B.); (T.B.)
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (M.S.); (M.B.); (T.B.)
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Das RP, Chakravarti S, Patel SS, Lakhamje P, Gurjar M, Gota V, Singh BG, Kunwar A. Tuning the pharmacokinetics and efficacy of irinotecan (IRI) loaded gelatin nanoparticles through folate conjugation. Int J Pharm 2020; 586:119522. [PMID: 32534159 DOI: 10.1016/j.ijpharm.2020.119522] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 02/07/2023]
Abstract
Gelatin based nanocarriers have major limitation of shorter circulation half-life (t1/2). Present study addressed this issue by conjugating gelatin with folate followed by nanoprecipitation in presence of polysorbate 80 to form folate attached gelatin nanoparticles (GNP-F). The folic acid was conjugated with gelatin through the formation of amide linkage with a maximum conjugation yield of ~69%. Cryo-SEM analysis indicated that unconjugated gelatin nanoparticles (GNP) and GNP-F were spherical of nearly identical size of ~200 nm. The irinotecan (IRI)-loading efficiency estimated for IRI-GNP and IRI-GNP-F was 6.6 ± 0.42% and 11.2 ± 0.73% respectively and both formulations showed faster release of IRI at acidic pH (~5) than at physiological pH (~7). Further IRI-GNP-F demonstrated significantly higher cytotoxicity in folate receptor (FR)-positive HeLa cells than the unconjugated IRI-GNP nanoparticles confirming active targeting. Subsequently the antitumor activity of above formulations in FR-positive fibrosarcoma (syngeneic) tumor-bearing mice followed the order of IRI-GNP-F > IRI-GNP > free IRI. The pharmacokinetic evaluation of IRI-GNP and IRI-GNP-F revealed that encapsulation of IRI within GNP without folate improved its plasma maximum concentration (Cmax). However, folate conjugation of GNP remarkably improved the t1/2 of IRI. Taken together, folate as a targeting ligand modulates the pharmacokinetic property of IRI loaded GNP to favor active verses passive targeting.
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Affiliation(s)
- Ram P Das
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Sarjak Chakravarti
- Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat 382481, India
| | - Snehal S Patel
- Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat 382481, India
| | - Pooja Lakhamje
- Department of Clinical Pharmacology, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai 410210, India
| | - Murari Gurjar
- Department of Clinical Pharmacology, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai 410210, India
| | - Vikram Gota
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India; Department of Clinical Pharmacology, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai 410210, India
| | - Beena G Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India.
| | - Amit Kunwar
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India.
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7
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Guan S, Zhang Q, Bao J, Hu R, Czech T, Tang J. Recognition Sites for Cancer-targeting Drug Delivery Systems. Curr Drug Metab 2020; 20:815-834. [PMID: 31580248 DOI: 10.2174/1389200220666191003161114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/10/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Target-homing drug delivery systems are now gaining significant attention for use as novel therapeutic approaches in antitumor targeting for cancer therapy. Numerous targeted drug delivery systems have been designed to improve the targeting effects because these systems can display a range of favorable properties, thus, providing suitable characteristics for clinical applicability of anticancer drugs, such as increasing the solubility, and improving the drug distribution at target sites. The majority of these targeting systems are designed with respect to differences between cancerous and normal tissues, for instance, the low pH of tumor tissues or overexpressed receptors on tumor cell membranes. Due to the growing number of targeting possibilities, it is important to know the tumor-specific recognition strategies for designing novel, targeted, drug delivery systems. Herein, we identify and summarize literature pertaining to various recognition sites for optimizing the design of targeted drug delivery systems to augment current chemotherapeutic approaches. OBJECTIVE This review focuses on the identification of the recognition sites for developing targeted drug delivery systems for use in cancer therapeutics. METHODS We have reviewed and compiled cancer-specific recognition sites and their abnormal characteristics within tumor tissues (low pH, high glutathione, targetable receptors, etc.), tumor cells (receptor overexpression or tumor cell membrane changes) and tumor cell organelles (nuclear and endoplasmic reticular dysregulation) utilizing existing scientific literature. Moreover, we have highlighted the design of some targeted drug delivery systems that can be used as homing tools for these recognition sites. RESULTS AND CONCLUSION Targeted drug delivery systems are a promising therapeutic approach for tumor chemotherapy. Additional research focused on finding novel recognition sites, and subsequent development of targeting moieties for use with drug delivery systems will aid in the evaluation and clinical application of new and improved chemotherapeutics.
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Affiliation(s)
- Siyu Guan
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Qianqian Zhang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jianwei Bao
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Rongfeng Hu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Anhui "115" Xin'an Medicine Research & Development Innovation Team, Hefei 230038, China
| | - Tori Czech
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH 44272, United States
| | - Jihui Tang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
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8
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Engineered beta-cyclodextrin-based carrier for targeted doxorubicin delivery in breast cancer therapy in vivo. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.09.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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9
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Deo KM, Ang DL, McGhie B, Rajamanickam A, Dhiman A, Khoury A, Holland J, Bjelosevic A, Pages B, Gordon C, Aldrich-Wright JR. Platinum coordination compounds with potent anticancer activity. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.014] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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10
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Pal K, Heinsch A, Berkessel A, Koner AL. Differentiation of Folate-Receptor-Positive and -Negative Cells Using a Substrate-Mimicking Fluorescent Probe. Chemistry 2017; 23:15008-15011. [DOI: 10.1002/chem.201703305] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Indexed: 01/03/2023]
Affiliation(s)
- Kaushik Pal
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhauri Bhopal (MP)- 462066 India
| | - Angela Heinsch
- Department of Chemistry; University of Cologne; Greinstrasse 4 50939 Cologne Germany
| | - Albrecht Berkessel
- Department of Chemistry; University of Cologne; Greinstrasse 4 50939 Cologne Germany
| | - Apurba L. Koner
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhauri Bhopal (MP)- 462066 India
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11
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Di Y, Li T, Zhu Z, Chen F, Jia L, Liu W, Gai X, Wang Y, Pan W, Yang X. pH-sensitive and folic acid-targeted MPEG-PHIS/FA-PEG-VE mixed micelles for the delivery of PTX-VE and their antitumor activity. Int J Nanomedicine 2017; 12:5863-5877. [PMID: 28860753 PMCID: PMC5566413 DOI: 10.2147/ijn.s141982] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The aim of this study was to simultaneously introduce pH sensitivity and folic acid (FA) targeting into a micelle system to achieve quick drug release and to enhance its accumulation in tumor cells. Paclitaxel-(+)-α-tocopherol (PTX-VE)-loaded mixed micelles (PHIS/FA/PM) fabricated by poly(ethylene glycol) methyl ether-poly(histidine) (MPEG-PHIS) and folic acid-poly(ethylene glycol)-(+)-α-tocopherol (FA-PEG-VE) were characterized by dynamic light scattering and transmission electron microscopy (TEM). The mixed micelles had a spherical morphology with an average diameter of 137.0±6.70 nm and a zeta potential of -48.7±4.25 mV. The drug encapsulation and loading efficiencies were 91.06%±2.45% and 5.28%±0.30%, respectively. The pH sensitivity was confirmed by changes in particle size, critical micelle concentration, and transmittance as a function of pH. MTT assay showed that PHIS/FA/PM had higher cytotoxicity at pH 6.0 than at pH 7.4, and lower cytotoxicity in the presence of free FA. Confocal laser scanning microscope images demonstrated a time-dependent and FA-inhibited cellular uptake. In vivo imaging confirmed that the mixed micelles targeted accumulation at tumor sites and the tumor inhibition rate was 85.97%. The results proved that the mixed micelle system fabricated by MPEG-PHIS and FA-PEG-VE is a promising approach to improve antitumor efficacy.
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Affiliation(s)
- Yan Di
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University
| | - Ting Li
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University
| | - Zhihong Zhu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University
| | - Fen Chen
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine
| | - Lianqun Jia
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine
| | - Wenbing Liu
- Key Laboratory of Structure-Based Drug Design & Discovery, Shenyang Pharmaceutical University, Ministry of Education, Shenyang, China
| | - Xiumei Gai
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University
| | - Yingying Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University
| | - Weisan Pan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University
| | - Xinggang Yang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University
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12
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Siwowska K, Schmid RM, Cohrs S, Schibli R, Müller C. Folate Receptor-Positive Gynecological Cancer Cells: In Vitro and In Vivo Characterization. Pharmaceuticals (Basel) 2017; 10:ph10030072. [PMID: 28809784 PMCID: PMC5620616 DOI: 10.3390/ph10030072] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 07/31/2017] [Accepted: 08/09/2017] [Indexed: 01/10/2023] Open
Abstract
The folate receptor alpha (FR) is expressed in a variety of gynecological cancer types. It has been widely used for tumor targeting with folic acid conjugates of diagnostic and therapeutic probes. The cervical KB tumor cells have evolved as the standard model for preclinical investigations of folate-based (radio) conjugates. In this study, a panel of FR-expressing human cancer cell lines—including cervical (HeLa, KB, KB-V1), ovarian (IGROV-1, SKOV-3, SKOV-3.ip), choriocarcinoma (JAR, BeWo) and endometrial (EFE-184) tumor cells—was investigated in vitro and for their ability to grow as xenografts in mice. FR-expression levels were compared in vitro and in vivo and the cell lines were characterized by determination of the sensitivity towards commonly-used chemotherapeutics and the expression of two additional, relevant tumor markers, HER2 and L1-CAM. It was found that, besides KB cells, its multiresistant KB-V1 subclone as well as the ovarian cancer cell lines, IGROV-1 and SKOV-3.ip, could be used as potentially more relevant preclinical models. They would allow addressing specific questions such as the therapeutic efficacy of FR-targeting agents in tumor (mouse) models of multi-resistance and in mouse models of metastases formation.
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Affiliation(s)
- Klaudia Siwowska
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, Villigen-PSI 5232, Switzerland.
| | - Raffaella M Schmid
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, Villigen-PSI 5232, Switzerland.
| | - Susan Cohrs
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, Villigen-PSI 5232, Switzerland.
| | - Roger Schibli
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, Villigen-PSI 5232, Switzerland.
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland.
| | - Cristina Müller
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, Villigen-PSI 5232, Switzerland.
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13
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Lei X, Li K, Liu Y, Wang ZY, Ruan BJ, Wang L, Xiang A, Wu D, Lu Z. Co-delivery nanocarriers targeting folate receptor and encapsulating 2-deoxyglucose and α-tocopheryl succinate enhance anti-tumor effect in vivo. Int J Nanomedicine 2017; 12:5701-5715. [PMID: 28848348 PMCID: PMC5557622 DOI: 10.2147/ijn.s135849] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A combination administration of chemical agents was highlighted to treat tumors. Recently, tumor cell has been found to be different from normal cell in metabolic manner. Most of cancer cells prefer aerobic glycolysis to mitochondrial oxidative phosphorylation (OXPHOS) to satisfy energy and biomass synthesis requirement to survive, grow and proliferate, which provides novel and potential therapeutic targets for chemotherapy. Here, 2-deoxy-d-glucose (2-DG), a potent inhibitor of glucose metabolism, was used to inhibit glycolysis of tumor cells; α-tocopheryl succinate (α-TOS), a water-insoluble vitamin E derivative, was chosen to suppress OXPHOS. Our data demonstrated that the combination treatment of 2-DG and α-TOS could significantly promote the anti-tumor efficiency in vitro compared with administration of the single drug. In order to maximize therapeutic activity and minimize negative side effects, a co-delivery nanocarrier targeting folate receptor (FR) was developed to encapsulate 2-DG and α-TOS simultaneously based on our previous work. Transmission electron microscope, dynamic light scattering method and UV-visible spectrophotometers were used to investigate morphology, size distribution and loading efficiency of the α-TOS-2-DG-loaded and FR-targeted nanoparticles (TDF NPs). The TDF NPs were found to possess a layer-by-layer shape, and the dynamic size was <100 nm. The final encapsulation efficiencies of α-TOS and 2-DG in TDF NPs were 94.3%±1.3% and 61.7%±7.7% with respect to drug-loading capacities of 8.9%±0.8% and 13.2%±2.6%, respectively. Almost no α-TOS release was found within 80 h, and release of 2-DG was sustained and slow within 72 h. The results of FR binding assay and fluorescence biodistribution revealed that TDF NPs could target FR highly expressed on tumor cell in vitro and in vivo. Further, in vivo anti-tumor experiments showed that TDF NPs had an improved biological function with less toxicity. Thus, our work indicates that the co-delivery TDF NPs have a great potential in tumor therapy.
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Affiliation(s)
- Xiaoying Lei
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University
| | - Ke Li
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi.,Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an
| | - Yan Liu
- Genetic Engineering Laboratory of PLA, The Eleventh Institute of Academy of Military Medical Sciences of PLA, Changchun, Jilin, People's Republic of China
| | - Zhen Yu Wang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University
| | - Ban Jun Ruan
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University
| | - Li Wang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University
| | - An Xiang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University
| | - Daocheng Wu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an
| | - Zifan Lu
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University
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14
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Dumoga S, Rai Y, Bhatt AN, Tiwari AK, Singh S, Mishra AK, Kakkar D. Block Copolymer Based Nanoparticles for Theranostic Intervention of Cervical Cancer: Synthesis, Pharmacokinetics, and in Vitro/in Vivo Evaluation in HeLa Xenograft Models. ACS APPLIED MATERIALS & INTERFACES 2017; 9:22195-22211. [PMID: 28608677 DOI: 10.1021/acsami.7b04982] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polymer-based nanoparticles have proven to be viable carriers of therapeutic agents. In this study, we have developed nanoparticles (NPs) from polypeptide-polyethylene glycol based triblock and diblock copolymers. The synthesized block copolymers poly(ethylene glycol)-b-poly(glutamic acid)-b-poly(ethylene glycol) (GEG) and poly(ethylene glycol)-b-poly(glutamic acid) (EG) conjugated with folic acid for targeting specificity (EGFA) have been used to encapsulate methotrexate (MTX) to form M-GEG and M-EGFA NPs aimed at passive and active targeting of cervical carcinoma. In-vitro SRB cytotoxicity and hemolysis assays revealed that these NPs were cytocompatible to healthy human cells and hemocompatible to human RBCs. Cellular uptake by FACS demonstrated their prompt internalization by human cervical carcinoma (HeLa) cells and points toward an apoptotic mechanism of cell kill as confirmed by AO/EB staining as well as histological analysis of explanted HeLa tumors. Pharmacokinetics and biodistribution studies were performed in New Zealand albino rabbits and HeLa xenografted Athymic mice models, respectively, by radiolabeling these NPs with 99mTc. Passive tumor accumulation and active targeting of MTX-loaded polymeric nanoparticles to folate expressing cells were confirmed by intravenous administration of these 99mTc-labeled M-GEG and M-EGFA NPs in HeLa tumor bearing nude mice and clearly visualized by whole-body gamma-SPECT images of these mice. Survival studies of these xenografted mice established the antiproliferative effect of these MTX-loaded NPs while corroborating the targeting effect of folic acid. These studies proved that the M-GEG NPs and M-EGFA NPs could be effective alternatives to conventional chemotherapy along with simultaneous diagnostic abilities and thus potentially viable theranostic options for human cervical carcinoma.
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Affiliation(s)
- Shweta Dumoga
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization , Brig. S.K. Mazumdar Road, Timarpur, Delhi 110054, India
- Department of Chemistry, University of Delhi , Delhi 110007, India
| | - Yogesh Rai
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization , Brig. S.K. Mazumdar Road, Timarpur, Delhi 110054, India
| | - Anant Narayan Bhatt
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization , Brig. S.K. Mazumdar Road, Timarpur, Delhi 110054, India
| | - Anjani Kumar Tiwari
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization , Brig. S.K. Mazumdar Road, Timarpur, Delhi 110054, India
| | - Surendra Singh
- Department of Chemistry, University of Delhi , Delhi 110007, India
| | - Anil K Mishra
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization , Brig. S.K. Mazumdar Road, Timarpur, Delhi 110054, India
| | - Dipti Kakkar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization , Brig. S.K. Mazumdar Road, Timarpur, Delhi 110054, India
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Haller S, Ametamey SM, Schibli R, Müller C. Investigation of the chick embryo as a potential alternative to the mouse for evaluation of radiopharmaceuticals. Nucl Med Biol 2014; 42:226-33. [PMID: 25533725 DOI: 10.1016/j.nucmedbio.2014.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Revised: 10/14/2014] [Accepted: 10/16/2014] [Indexed: 01/15/2023]
Abstract
INTRODUCTION The chick embryo is an emerging in vivo model in several areas of pre-clinical research including radiopharmaceutical sciences. Herein, it was evaluated as a potential test system for assessing the biodistribution and in vivo stability of radiopharmaceuticals. For this purpose, a number of radiopharmaceuticals labeled with (18)F, (125)I, (99m)Tc, and (177)Lu were investigated in the chick embryo and compared with the data obtained in mice. METHODS Chick embryos were cultivated ex ovo for 17-19 days before application of the radiopharmaceutical directly into the peritoneum or intravenously using a vein of the chorioallantoic membrane (CAM). At a defined time point after application of radioactivity, the embryos were euthanized by shock-freezing using liquid nitrogen. Afterwards they were separated from residual egg components for post mortem imaging purposes using positron emission tomography (PET) or single photon emission computed tomography (SPECT). RESULTS SPECT images revealed uptake of [(99m)Tc]pertechnetate and [(125)I]iodide in the thyroid of chick embryos and mice, whereas [(177)Lu]lutetium, [(18)F]fluoride and [(99m)Tc]-methylene diphosphonate ([(99m)Tc]-MDP) were accumulated in the bones. [(99m)Tc]-dimercaptosuccinic acid ((99m)Tc-DMSA) and the somatostatin analog [(177)Lu]-DOTATOC, as well as the folic acid derivative [(177)Lu]-DOTA-folate showed accumulation in the renal tissue whereas [(99m)Tc]-mebrofenin accumulated in the gall bladder and intestine of both species. In vivo dehalogenation of [(18)F]fallypride and of the folic acid derivative [(125)I]iodo-tyrosine-folate was observed in both species. In contrast, the 3'-aza-2'-[(18)F]fluorofolic acid ([(18)F]-AzaFol) was stable in the chick embryo as well as in the mouse. CONCLUSIONS Our results revealed the same tissue distribution profile and in vivo stability of radiopharmaceuticals in the chick embryo and the mouse. This observation is promising with regard to a potential use of the chick embryo as an inexpensive and simple test model for preclinical screening of novel radiopharmaceuticals.
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Affiliation(s)
- Stephanie Haller
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, Villigen-PSI, Switzerland
| | - Simon M Ametamey
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Roger Schibli
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, Villigen-PSI, Switzerland; Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Cristina Müller
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, Villigen-PSI, Switzerland.
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Yang X, Gao Z. Gold nanoparticle-based exonuclease III signal amplification for highly sensitive colorimetric detection of folate receptor. NANOSCALE 2014; 6:3055-3058. [PMID: 24500117 DOI: 10.1039/c3nr06139f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
By combining terminal protection of small molecule (folate)-capped DNA probes, exonuclease III signal amplification and gold nanoparticles, we developed a simple and label-free colorimetric assay for highly sensitive detection of folate receptor (FR). A detection limit of 50 fM FR was obtained using UV-vis spectrometry and 10 pM FR could be visualized by the naked eye.
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Affiliation(s)
- Xinjian Yang
- Department of Chemistry, National University of Singapore, Singapore 117543.
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17
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Xie F, Zhang C, Yu Q, Pang Y, Chen Y, Yang W, Xue J, Liu Y, Lu J. Novel 99mTc radiolabeled folate complexes with PEG linkers for FR-positive tumor imaging: synthesis and biological evaluation. RSC Adv 2014. [DOI: 10.1039/c4ra03564j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The novel complex 99mTc(FA-PEG2-HYNIC)(tricine/TPPTS) was clearly visualized at 120 min p.i. at the FR-positive tumor, highlighting its potential as an effective folate receptor tumor imaging agent.
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Affiliation(s)
- Fang Xie
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875, P. R. China
| | - Chun Zhang
- Department of Nuclear Medicine
- Beijing Chao-Yang Hospital
- Capital Medical University
- Beijing 100020, P. R. China
| | - Qian Yu
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875, P. R. China
| | - Yan Pang
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875, P. R. China
| | - Yuan Chen
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875, P. R. China
| | - Wenjiang Yang
- Key laboratory of Nuclear Radiation and Nuclear Energy Technology
- Institute of High Energy Physics
- China Academy of Sciences
- Beijing 100142, P. R. China
| | - Jingquan Xue
- Key laboratory of Nuclear Radiation and Nuclear Energy Technology
- Institute of High Energy Physics
- China Academy of Sciences
- Beijing 100142, P. R. China
| | - Yu Liu
- Key laboratory of Nuclear Radiation and Nuclear Energy Technology
- Institute of High Energy Physics
- China Academy of Sciences
- Beijing 100142, P. R. China
| | - Jie Lu
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875, P. R. China
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Reber J, Haller S, Leamon CP, Müller C. 177Lu-EC0800 combined with the antifolate pemetrexed: preclinical pilot study of folate receptor targeted radionuclide tumor therapy. Mol Cancer Ther 2013; 12:2436-45. [PMID: 24030631 DOI: 10.1158/1535-7163.mct-13-0422-t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Targeted radionuclide therapy has shown impressive results for the palliative treatment of several types of cancer diseases. The folate receptor has been identified as specifically associated with a variety of frequent tumor types. Therefore, it is an attractive target for the development of new radionuclide therapies using folate-based radioconjugates. Previously, we found that pemetrexed (PMX) has a favorable effect in reducing undesired renal uptake of radiofolates. Moreover, PMX also acts as a chemotherapeutic and radiosensitizing agent on tumors. Thus, the aim of our study was to investigate the combined application of PMX and the therapeutic radiofolate (177)Lu-EC0800. Determination of the combination index (CI) revealed a synergistic inhibitory effect of (177)Lu-EC0800 and PMX on the viability of folate receptor-positive cervical (KB) and ovarian (IGROV-1) cancer cells in vitro (CI < 0.8). In an in vivo study, tumor-bearing mice were treated with (177)Lu-EC0800 (20 MBq) and a subtherapeutic (0.4 mg) or therapeutic amount (1.6 mg) of PMX. Application of (177)Lu-EC0800 with PMXther resulted in a two- to four-fold enhanced tumor growth delay and a prolonged survival of KB and IGROV-1 tumor-bearing mice, as compared to the combination with PMXsubther or untreated control mice. PMXsubther protected the kidneys from undesired side effects of (177)Lu-EC0800 (20 MBq) by reducing the absorbed radiation dose. Intact kidney function was shown by determination of plasma parameters and quantitative single-photon emission computed tomography using (99m)Tc-DMSA. Our results confirmed the anticipated dual role of PMX. Its unique features resulted in an improved antitumor effect of folate-based radionuclide therapy and prevented undesired radio-nephrotoxicity.
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Affiliation(s)
- Josefine Reber
- Corresponding Author: Cristina Müller, Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland.
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Qiao J, Mu X, Qi L, Deng J, Mao L. Folic acid-functionalized fluorescent gold nanoclusters with polymers as linkers for cancer cell imaging. Chem Commun (Camb) 2013; 49:8030-2. [DOI: 10.1039/c3cc44256j] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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20
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Challenges in drug delivery to the brain: Nature is against us. J Control Release 2012; 164:145-55. [DOI: 10.1016/j.jconrel.2012.04.044] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 04/24/2012] [Accepted: 04/29/2012] [Indexed: 01/12/2023]
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21
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Wei X, Lin W, Ma N, Luo F, Lin Z, Guo L, Qiu B, Chen G. Sensitive fluorescence biosensor for folate receptor based on terminal protection of small-molecule-linked DNA. Chem Commun (Camb) 2012; 48:6184-6. [DOI: 10.1039/c2cc31979a] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ding N, Lu Y, Lee RJ, Yang C, Huang L, Liu J, Xiang G. Folate receptor-targeted fluorescent paramagnetic bimodal liposomes for tumor imaging. Int J Nanomedicine 2011; 6:2513-20. [PMID: 22072885 PMCID: PMC3205144 DOI: 10.2147/ijn.s23934] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
RATIONALE AND OBJECTIVE Receptor-targeted delivery of imaging and therapeutic agents can lead to enhanced efficacy for both. Multimodality imaging offers unique advantages over traditional single modality imaging. Tumor marker folate receptor (FR)-targeted fluorescent paramagnetic bimodal liposomes were synthesized to co-deliver paramagnetic and fluorescence agents for magnetic resonance (MR) and optical bimodal imaging contrast enhancement. MATERIALS AND METHODS Fluorescent and paramagnetic bimodal liposomes were synthesized with a mean diameter of 136 nm and a low polydispersity index. The liposomes incorporated folate-PEG(3350)-CHEMS for FR targeting, Gd(III)[N,N-Bis-stearylamidomethyl-N'-amidomethyl]diethylenetriamine tetraacetic acid (Gd-DTPA-BSA) for MR contrast, and calcein for fluorescence. To determine the specificity and efficiency of delivery, the liposomes were evaluated in FR-positive KB and HeLa cells and FR-negative A549 cells, which were analyzed by fluorescence microscopy, magnetic resonance imaging (MRI), and flow cytometry (FCM). RESULTS FR-specific and efficient cellular uptake of the FR-targeted bimodal liposomes was confirmed by fluorescence microscopy and by FCM. The mean fluorescence intensity (MFI) of KB cells treated with FR-targeted liposomes was 45× that of cells treated with nontargeted liposomes, and 18× that of cells treated with FR-targeted liposomes and excess folic acid (FA). The MFI of HeLa cells treated with targeted liposomes was 33× that of nontargeted liposomes, and was 16× that of the mixture of targeted liposomes and free FA. In contrast, the MFI of A549 cells treated with FR-targeted liposomes was nearly the same as those treated with nontargeted liposomes. The T(1)-weighted MR images of HeLa and KB cells incubated with FR-targeted liposomes had much higher signal intensity than those treated with nontargeted liposomes or free Gd-DTPA. Furthermore, the FR-targeting effect could be blocked by excess free FA. CONCLUSION FR-targeted fluorescent paramagnetic bimodal liposomes provided a novel platform for bimodal tumor imaging and theranostic delivery.
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Affiliation(s)
- Nan Ding
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Mishra G, Hazari PP, Kumar N, Mishra AK. In vitroandin vivoevaluation of99mTc-DO3A-EA-Folate for receptor-mediated targeting of folate positive tumors. J Drug Target 2011; 19:761-9. [DOI: 10.3109/1061186x.2011.561857] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Fani M, Wang X, Nicolas G, Medina C, Raynal I, Port M, Maecke HR. Development of new folate-based PET radiotracers: preclinical evaluation of ⁶⁸Ga-DOTA-folate conjugates. Eur J Nucl Med Mol Imaging 2010; 38:108-19. [PMID: 20799032 DOI: 10.1007/s00259-010-1597-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Accepted: 08/06/2010] [Indexed: 01/16/2023]
Abstract
PURPOSE A number of (111)In- and (99m)Tc-folate-based tracers have been evaluated as diagnostic agents for imaging folate receptor (FR)-positive tumours. A (68)Ga-folate-based radiopharmaceutical would be of great interest, combining the advantages of PET technology and the availability of (68)Ga from a generator. The aim of the study was to develop a new (68)Ga-folate-based PET radiotracer. METHODS Two new DOTA-folate conjugates, named P3026 and P1254, were synthesized using the 1,2-diaminoethane and 3-{2-[2-(3-amino-propoxy)-ethoxy]-ethoxy}-propylamine as a spacer, respectively. Both conjugates were labelled with (67/68)Ga. Binding affinity, internalization and externalization studies were performed using the FR-positive KB cell line. Biodistribution and PET/CT imaging studies were performed in nude mice, on a folate-deficient diet, bearing KB and HT1080 (FR-negative) tumours, concurrently. The new radiotracers were evaluated comparatively to the reference molecule (111)In-DTPA-folate ((111)In-P3139). RESULTS The K(d) values of (67/68)Ga-P3026 (4.65 ± 0.82 nM) and (67/68)Ga-P1254 (4.27 ± 0.42 nM) showed high affinity for the FR. The internalization rate followed the order (67/68)Ga-P3026 > (67/68)Ga-P1254 > (111)In-P3139, while almost double cellular retention was found for (67/68)Ga-P3026 and (67/68)Ga-P1254, compared to (111)In-P3139. The biodistribution data of (67/68)Ga-DOTA-folates showed high and receptor-mediated uptake on the FR-positive tumours and kidneys, with no significant differences compared to (111)In-P3139. PET/CT images, performed with (68)Ga-P3026, showed high uptake in the kidneys and clear visualization of the FR-positive tumours. CONCLUSION The DOTA-folate conjugates can be efficiently labelled with (68)Ga in labelling yields and specific activities which allow clinical application. The characteristics of the (67/68)Ga-DOTA-folates are comparable to (111)In-DTPA-folate, which has already been used in clinical trials, showing that the new conjugates are promising candidates as PET radiotracers for FR-positive tumours.
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Affiliation(s)
- Melpomeni Fani
- Division of Radiological Chemistry, University Hospital Basel, 4031, Basel, Switzerland
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Harper B, Krause-Heuer A, Grant M, Manohar M, Garbutcheon-Singh KB, Aldrich-Wright J. Advances in Platinum Chemotherapeutics. Chemistry 2010; 16:7064-77. [DOI: 10.1002/chem.201000148] [Citation(s) in RCA: 228] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Kamaly N, Kalber T, Thanou M, Bell JD, Miller AD. Folate receptor targeted bimodal liposomes for tumor magnetic resonance imaging. Bioconjug Chem 2009; 20:648-55. [PMID: 19368341 DOI: 10.1021/bc8002259] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Folate-targeted bimodal paramagnetic and fluorescent liposomes were developed and showed enhanced accumulation in a folate receptor expressing tumor model. These bimodal liposomes were composed of both a paramagnetic and a fluorescent lipid, and utilized a PEG-lipid amphiphile for prolonged in vivo circulation. The particles were formulated to ensure a size distribution of approximately 100 nm with a low polydispersity index. IGROV-1 cells were used to induce tumors in nude Balb/c mice, and the folate-targeted liposomes were injected intravenously. Rapid accumulation of the folate-targeted liposomes within the tumor tissue compared to nontargeted liposomes was observed. Furthermore, folate-labeled liposomes showed a 4-fold increase in tumor T(1) signal intensity at just 2 h postinjection with similar results being obtained for the nontargeted liposomes only 24 h postinjection. In addition, the folate-targeted liposomes were injected at half the nontargeted liposome dose, further demonstrating their effectiveness. Histological analysis of sectioned tumor slices revealed distinct fluorescence patterns between the targeted and nontargeted systems, with a more localized and hyperintense fluorescence signal observed from tumor sections post-folate-targeted liposome injections. These results demonstrate the effectiveness of folate targeting for dynamic real-time solid tumor MRI and provide insight into kinetics of targeted and nontargeted nanoparticles to solid tumors.
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Affiliation(s)
- Nazila Kamaly
- Imperial College Genetic Therapies Centre, Department of Chemistry, Imperial College London, UK.
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Höltke C, Waldeck J, Kopka K, Heindel W, Schober O, Schäfers M, Bremer C. Biodistribution of a Nonpeptidic Fluorescent Endothelin a Receptor Imaging Probe. Mol Imaging 2009. [DOI: 10.2310/7290.2009.00003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Carsten Höltke
- From the Departments of Clinical Radiology and Nuclear Medicine, University Hospital Muenster; and Interdisciplinary Center for Clinical Research and European Institute of Molecular Imaging, University of Muenster, Muenster, Germany
| | - Jens Waldeck
- From the Departments of Clinical Radiology and Nuclear Medicine, University Hospital Muenster; and Interdisciplinary Center for Clinical Research and European Institute of Molecular Imaging, University of Muenster, Muenster, Germany
| | - Klaus Kopka
- From the Departments of Clinical Radiology and Nuclear Medicine, University Hospital Muenster; and Interdisciplinary Center for Clinical Research and European Institute of Molecular Imaging, University of Muenster, Muenster, Germany
| | - Walter Heindel
- From the Departments of Clinical Radiology and Nuclear Medicine, University Hospital Muenster; and Interdisciplinary Center for Clinical Research and European Institute of Molecular Imaging, University of Muenster, Muenster, Germany
| | - Otmar Schober
- From the Departments of Clinical Radiology and Nuclear Medicine, University Hospital Muenster; and Interdisciplinary Center for Clinical Research and European Institute of Molecular Imaging, University of Muenster, Muenster, Germany
| | - Michael Schäfers
- From the Departments of Clinical Radiology and Nuclear Medicine, University Hospital Muenster; and Interdisciplinary Center for Clinical Research and European Institute of Molecular Imaging, University of Muenster, Muenster, Germany
| | - Christoph Bremer
- From the Departments of Clinical Radiology and Nuclear Medicine, University Hospital Muenster; and Interdisciplinary Center for Clinical Research and European Institute of Molecular Imaging, University of Muenster, Muenster, Germany
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Bartholomä M, Valliant J, Maresca KP, Babich J, Zubieta J. Single amino acid chelates (SAAC): a strategy for the design of technetium and rhenium radiopharmaceuticals. Chem Commun (Camb) 2009:493-512. [PMID: 19283279 DOI: 10.1039/b814903h] [Citation(s) in RCA: 168] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mark Bartholomä
- Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA
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Abstract
Folate receptors are up-regulated on a variety of human cancers, including cancers of the breast, ovaries, endometrium, lungs, kidneys, colon, brain, and myeloid cells of hematopoietic origin. This over-expression of folate receptors (FR) on cancer tissues can be exploited to target folate-linked imaging and therapeutic agents specifically to FR-expressing tumors, thereby avoiding uptake by most healthy tissues that express few if any FR. Four folate-targeted therapeutic drugs are currently undergoing clinical trials, and several folate-linked chemotherapeutic agents are in late stage preclinical development. However, because not all cancers express FR, and because only FR-expressing cancers respond to FR-targeted therapies, FR-targeted imaging agents have been required to select patients with FR-expressing tumors likely to respond to folate-targeted therapies. This review focuses on recent advances in the use of the vitamin folic acid to target PET agents, gamma-emitters, MRI contrast agents and fluorescent dyes to FR(+) cancers for the purpose of diagnosing and imaging malignant masses with improved specificity and sensitivity.
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Affiliation(s)
- Emanuela I Sega
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA.
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Dhar S, Liu Z, Thomale J, Dai H, Lippard SJ. Targeted single-wall carbon nanotube-mediated Pt(IV) prodrug delivery using folate as a homing device. J Am Chem Soc 2008; 130:11467-76. [PMID: 18661990 DOI: 10.1021/ja803036e] [Citation(s) in RCA: 568] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Most low-molecular-weight platinum anticancer drugs have short blood circulation times that are reflected in their reduced tumor uptake and intracellular DNA binding. A platinum(IV) complex of the formula c, c, t-[Pt(NH 3) 2Cl 2(O 2CCH 2CH 2CO 2H)(O 2CCH 2CH 2CONH-PEG-FA)] ( 1), containing a folate derivative (FA) at an axial position, was prepared and characterized. Folic acid offers a means of targeting human cells that highly overexpress the folate receptor (FR). Compound 1 was attached to the surface of an amine-functionalized single-walled carbon nanotube (SWNT-PL-PEG-NH 2) through multiple amide linkages to use the SWNTs as a "longboat delivery system" for the platinum warhead, carrying it to the tumor cell and releasing cisplatin upon intracellular reduction of Pt(IV) to Pt(II). The ability of SWNT tethered 1 to destroy selectively FR(+) vs FR(-) cells demonstrated its ability to target tumor cells that overexpress the FR on their surface. That the SWNTs deliver the folate-bearing Pt(IV) cargos into FR(+) cancer cells by endocytosis was demonstrated by the localization of fluorophore-labeled SWNTs using fluorescence microscopy. Once inside the cell, cisplatin, formed upon reductive release from the longboat oars, enters the nucleus and reacts with its target nuclear DNA, as determined by platinum atomic absorption spectroscopy of cell extracts. Formation of the major cisplatin 1,2-intrastrand d(GpG) cross-links on the nuclear DNA was demonstrated by use of a monoclonal antibody specific for this adduct. The SWNT-tethered compound 1 is the first construct in which both the targeting and delivery moieties have been incorporated into the same molecule; it is also the first demonstration that intracellular reduction of a Pt(IV) prodrug leads to the cis-{Pt((NH 3) 2} 1,2-intrastrand d(GpG) cross-link in nuclear DNA.
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Affiliation(s)
- Shanta Dhar
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Lee ES, Gao Z, Bae YH. Recent progress in tumor pH targeting nanotechnology. J Control Release 2008; 132:164-70. [PMID: 18571265 DOI: 10.1016/j.jconrel.2008.05.003] [Citation(s) in RCA: 631] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Revised: 04/30/2008] [Accepted: 05/05/2008] [Indexed: 11/29/2022]
Abstract
pH-sensitive polymeric micelles and nanogels have recently been developed to target slightly acidic extracellular pH environment of solid tumors. The pH targeting approach is regarded as a more general strategy than conventional specific tumor cell surface targeting approaches, because the acidic tumor microclimate is most common in solid tumors. When nanosystems are combined with triggered release mechanisms by endosomal or lysosomal acidity plus endosomolytic capability, the nanocarriers demonstrated to overcome multidrug resistance of various tumors. This review highlights recent progress of the pH-sensitive nanotechnology developed in Bae research group.
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Affiliation(s)
- Eun Seong Lee
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, 421 Wakara Way, Suite 315, Utah 84108, USA
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Müller C, Schubiger PA, Schibli R. Isostructural folate conjugates radiolabeled with the matched pair 99mTc/188Re: a potential strategy for diagnosis and therapy of folate receptor-positive tumors. Nucl Med Biol 2007; 34:595-601. [PMID: 17707798 DOI: 10.1016/j.nucmedbio.2007.05.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2006] [Revised: 03/29/2007] [Accepted: 05/27/2007] [Indexed: 10/22/2022]
Abstract
UNLABELLED (99m)Tc-technetium ((99m)Tc) and (188)Re-rhenium ((188)Re) represent an interesting pair of radionuclides for diagnosis and therapy. The aim of this study was to synthesize and characterize in vitro/in vivo the first (188)Re-folate derivative [(188)Re(CO)(3)-picolylamine monoacetic acid 188/Re-OANA-folate (2)] for potential targeted radionuclide therapy of FR-positive tumors. The data were compared with those of the isostructural (99m)Tc-analog [(99m)Tc-PAMA folate (1)] reported previously. METHODS In vitro stability of compound 2 was tested in phosphate-buffered saline and human plasma. Cell binding experiments were performed with FR-positive human KB cells. Biodistribution was assessed in female nude mice, bearing KB tumor xenografts. RESULTS Cell binding experiments showed high and FR-specific uptake. In vivo, compound 2 accumulated specifically in the FR-positive tumors with maximal values 4 h post injection (p.i.) ['2: 1.87+/-0.04 percent injected dose per gram of weight tissue (% ID/g) vs. '1: 2.33+/-0.36% ID/g]. Unfavorably high retention of radioactivity was found in FR-positive kidneys (12.04+/-0.62% ID/g; 4 h p.i.). Tumor-to-blood ratio of radioactivity ('2: 14.5+/-1.32, 4 h p.i.) was lower than for compound '1 (58.0+/-12.2, 4 h p.i.), whereas tumor-to-kidney ratios were in the same range ('2: 0.15+/-0.01 vs. '1: 0.13+/-0.02, 4 h p.i.). Preadministration of the antifolate pemetrexed significantly improved the tumor-to-kidney ratio (2: 1.59+/-0.30, 4 h p.i.). CONCLUSIONS The isostructural radiofolates 1 and '2 displayed almost identical pharmacokinetic profiles and accumulated both specifically in FR-positive tumors. However, only the coapplication of the antifolate pemetrexed improved the biodistribution of the radiotracers in such ways that a potential therapeutic application of compound '2 can be envisaged in the future.
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Affiliation(s)
- Cristina Müller
- Center for Radiopharmaceutical Science ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
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