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Rizzi F, Panniello A, Comparelli R, Arduino I, Fanizza E, Iacobazzi RM, Perrone MG, Striccoli M, Curri ML, Scilimati A, Denora N, Depalo N. Luminescent Alendronic Acid-Conjugated Micellar Nanostructures for Potential Application in the Bone-Targeted Delivery of Cholecalciferol. Molecules 2024; 29:2367. [PMID: 38792228 PMCID: PMC11123821 DOI: 10.3390/molecules29102367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Vitamin D, an essential micronutrient crucial for skeletal integrity and various non-skeletal physiological functions, exhibits limited bioavailability and stability in vivo. This study is focused on the development of polyethylene glycol (PEG)-grafted phospholipid micellar nanostructures co-encapsulating vitamin D3 and conjugated with alendronic acid, aimed at active bone targeting. Furthermore, these nanostructures are rendered optically traceable in the UV-visible region of the electromagnetic spectrum via the simultaneous encapsulation of vitamin D3 with carbon dots, a newly emerging class of fluorescents, biocompatible nanoparticles characterized by their resistance to photobleaching and environmental friendliness, which hold promise for future in vitro bioimaging studies. A systematic investigation is conducted to optimize experimental parameters for the preparation of micellar nanostructures with an average hydrodynamic diameter below 200 nm, ensuring colloidal stability in physiological media while preserving the optical luminescent properties of the encapsulated carbon dots. Comprehensive chemical-physical characterization of these micellar nanostructures is performed employing optical and morphological techniques. Furthermore, their binding affinity for the principal inorganic constituent of bone tissue is assessed through a binding assay with hydroxyapatite nanoparticles, indicating significant potential for active bone-targeting. These formulated nanostructures hold promise for novel therapeutic interventions to address skeletal-related complications in cancer affected patients in the future.
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Affiliation(s)
- Federica Rizzi
- CNR-Institute for Chemical and Physical Process, 70125 Bari, Italy; (F.R.); (A.P.); (R.C.); (E.F.); (M.S.); (M.L.C.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Firenze, Italy
| | - Annamaria Panniello
- CNR-Institute for Chemical and Physical Process, 70125 Bari, Italy; (F.R.); (A.P.); (R.C.); (E.F.); (M.S.); (M.L.C.)
| | - Roberto Comparelli
- CNR-Institute for Chemical and Physical Process, 70125 Bari, Italy; (F.R.); (A.P.); (R.C.); (E.F.); (M.S.); (M.L.C.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Firenze, Italy
| | - Ilaria Arduino
- Department of Pharmacy—Pharmaceutical Sciences, University of Bari, 70125 Bari, Italy; (I.A.); (R.M.I.)
| | - Elisabetta Fanizza
- CNR-Institute for Chemical and Physical Process, 70125 Bari, Italy; (F.R.); (A.P.); (R.C.); (E.F.); (M.S.); (M.L.C.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Firenze, Italy
- Department of Chemistry, University of Bari, 70125 Bari, Italy
| | - Rosa Maria Iacobazzi
- Department of Pharmacy—Pharmaceutical Sciences, University of Bari, 70125 Bari, Italy; (I.A.); (R.M.I.)
| | - Maria Grazia Perrone
- Research Laboratory for Woman and Child Health, Department of Pharmacy—Pharmaceutical Sciences, University of Bari, 70125 Bari, Italy; (M.G.P.); (A.S.)
| | - Marinella Striccoli
- CNR-Institute for Chemical and Physical Process, 70125 Bari, Italy; (F.R.); (A.P.); (R.C.); (E.F.); (M.S.); (M.L.C.)
| | - Maria Lucia Curri
- CNR-Institute for Chemical and Physical Process, 70125 Bari, Italy; (F.R.); (A.P.); (R.C.); (E.F.); (M.S.); (M.L.C.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Firenze, Italy
- Department of Chemistry, University of Bari, 70125 Bari, Italy
| | - Antonio Scilimati
- Research Laboratory for Woman and Child Health, Department of Pharmacy—Pharmaceutical Sciences, University of Bari, 70125 Bari, Italy; (M.G.P.); (A.S.)
| | - Nunzio Denora
- Department of Pharmacy—Pharmaceutical Sciences, University of Bari, 70125 Bari, Italy; (I.A.); (R.M.I.)
| | - Nicoletta Depalo
- CNR-Institute for Chemical and Physical Process, 70125 Bari, Italy; (F.R.); (A.P.); (R.C.); (E.F.); (M.S.); (M.L.C.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Firenze, Italy
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Wen J, Cai D, Gao W, He R, Li Y, Zhou Y, Klein T, Xiao L, Xiao Y. Osteoimmunomodulatory Nanoparticles for Bone Regeneration. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13040692. [PMID: 36839060 PMCID: PMC9962115 DOI: 10.3390/nano13040692] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 05/27/2023]
Abstract
Treatment of large bone fractures remains a challenge for orthopedists. Bone regeneration is a complex process that includes skeletal cells such as osteoblasts, osteoclasts, and immune cells to regulate bone formation and resorption. Osteoimmunology, studying this complicated process, has recently been used to develop biomaterials for advanced bone regeneration. Ideally, a biomaterial shall enable a timely switch from early stage inflammatory (to recruit osteogenic progenitor cells) to later-stage anti-inflammatory (to promote differentiation and terminal osteogenic mineralization and model the microstructure of bone tissue) in immune cells, especially the M1-to-M2 phenotype switch in macrophage populations, for bone regeneration. Nanoparticle (NP)-based advanced drug delivery systems can enable the controlled release of therapeutic reagents and the delivery of therapeutics into specific cell types, thereby benefiting bone regeneration through osteoimmunomodulation. In this review, we briefly describe the significance of osteoimmunology in bone regeneration, the advancement of NP-based approaches for bone regeneration, and the application of NPs in macrophage-targeting drug delivery for advanced osteoimmunomodulation.
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Affiliation(s)
- Jingyi Wen
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, QLD 4059, Australia
| | - Donglin Cai
- School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Southport, QLD 4222, Australia
| | - Wendong Gao
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, QLD 4059, Australia
| | - Ruiying He
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430061, China
| | - Yulin Li
- The Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, Engineering Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200231, China
| | - Yinghong Zhou
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Travis Klein
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, QLD 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Lan Xiao
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, QLD 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Yin Xiao
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, QLD 4059, Australia
- School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Southport, QLD 4222, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, QLD 4000, Australia
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Nimbalkar Y, Gharat SA, Tanna V, Nikam VS, Nabar S, Sawarkar SP. Modification and Functionalization of Polymers for Targeting to Bone Cancer and Bone Regeneration. Crit Rev Biomed Eng 2023; 51:21-58. [PMID: 37560878 DOI: 10.1615/critrevbiomedeng.2023043780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Bone is one of the most complex, inaccessible body structures, responsible for calcium storage and haematopoiesis. The second highest cause of death across the world is cancer. Amongst all the types of cancers, bone cancer treatment modalities are limited due to the structural complexity and inaccessibility of bones. The worldwide incidence of bone diseases and bone defects due to cancer, infection, trauma, age-related bone degeneration is increasing. Currently different conventional therapies are available for bone cancer such as chemotherapy, surgery and radiotherapy, but they have several disadvantages associated with them. Nanomedicine is being extensively researched as viable therapeutics to mitigate drug resistance in cancer therapy and promote bone regeneration. Several natural polymers such as chitosan, dextran, alginate, hyaluronic acid, and synthetic polymers like polyglycolic acid, poly(lactic-co-glycolic acid), polycaprolactone are investigated for their application in nanomedicine for bone cancer treatment and bone regeneration. Nanocarriers have shown promising results in preclinical experimental studies. However, they still face a major drawback of inadequate targetability. The paper summarizes the status of research and the progress made so far in modifications and functionalization of natural polymers for improving their site specificity and targeting for effective treatment of bone cancer and enhancing bone regeneration.
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Affiliation(s)
- Yogesh Nimbalkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
| | - Sankalp A Gharat
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
| | - Vidhi Tanna
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
| | - Vandana S Nikam
- Department of Pharmacology, STES's Smt. Kashibai Navale College of Pharmacy, Kondhwa, S.P. Pune University, Pune 411048, India
| | - Swapna Nabar
- Radiation Medicine Centre, Tata Memorial Hospital, Parel, Mumbai, India
| | - Sujata P Sawarkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
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Hu B, Zhang Y, Zhang G, Li Z, Jing Y, Yao J, Sun S. Research progress of bone-targeted drug delivery system on metastatic bone tumors. J Control Release 2022; 350:377-388. [PMID: 36007681 DOI: 10.1016/j.jconrel.2022.08.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 10/15/2022]
Abstract
Bone metastases are common in malignant tumors and the effect of conventional treatment is limited. How to effectively inhibit tumor bone metastasis and deliver the drug to the bone has become an urgent issue to be solved. While bone targeting drug delivery systems have obvious advantages in the treatment of bone tumors. The research on bone-targeted anti-tumor therapy has made significant progress in recent years. We introduced the related tumor pathways of bone metastases. The tumor microenvironment plays an important role in metastatic bone tumors. We introduce a drug-loading systems based on different environment-responsive nanocomposites for anti-tumor and anti-metastatic research. According to the process of bone metastases and the structure of bone tissue, we summarized the information on bone-targeting molecules. Bisphosphate has become the first choice of bone-targeted drug delivery carrier because of its affinity with hydroxyapatite in bone. Therefore, we sought to summarize the bone-targeting molecule of bisphosphate to identify the modification effect on bone-targeting. And this paper discusses the relationship between bisphosphate bone targeting molecular structure and drug delivery carriers, to provide some new ideas for the research and development of bone-targeting drug delivery carriers. Targeted therapy will make a more outstanding contribution to the treatment of tumors.
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Affiliation(s)
- Beibei Hu
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Road, Shijiazhuang 050018, PR China; State Key Laboratory Breeding Base-Hebei Province, Key Laboratory of Molecular Chemistry for Drug, 26 Yuxiang Road, Shijiazhuang 050018, PR China
| | - Yongkang Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Road, Shijiazhuang 050018, PR China
| | - Guogang Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Road, Shijiazhuang 050018, PR China
| | - Zhongqiu Li
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Road, Shijiazhuang 050018, PR China
| | - Yongshuai Jing
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Road, Shijiazhuang 050018, PR China
| | - Jun Yao
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Road, Shijiazhuang 050018, PR China.
| | - Shiguo Sun
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Road, Shijiazhuang 050018, PR China.
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Azees PAA, Natarajan S, Amaechi BT, Thajuddin N, Raghavendra VB, Brindhadevi K, Pugazhendhi A. An empirical review on the risk factors, therapeutic strategies and materials at nanoscale for the treatment of oral malignancies. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Novel bidentate β-glutamic acid-based bone-targeting agents for in vivo bone imaging. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Song J, Cui N, Mao X, Huang Q, Lee ES, Jiang H. Sorption Studies of Tetracycline Antibiotics on Hydroxyapatite (001) Surface-A First-Principles Insight. MATERIALS 2022; 15:ma15030797. [PMID: 35160743 PMCID: PMC8836700 DOI: 10.3390/ma15030797] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/05/2022] [Accepted: 01/17/2022] [Indexed: 12/28/2022]
Abstract
Owing to the limitations of traditional systemic drug delivery in the treatment of bone diseases with side effects on normal cells, the selection of materials with high affinities for bones, as targeting ligands to modify drug carriers, has become an important research topic. Tetracyclines (TCs) have an adsorption effect on hydroxyapatite (HAp). Thus, they can be used as bone-targeting ligands and combined with drug carriers. In this study, density functional theory is used to analyze the interaction mechanism of TC, oxytetracycline (OTC), chlortetracycline, and HAp. We calculate the electrostatic potential (ESP) and molecular orbitals to predict the possible binding sites of TCs on the HAp surface. The adsorption energy is used to compare the affinities of the three TCs to HAp. An independent gradient model analysis is performed to study the weak interaction between TCs and HAp. The coordination bond between TCs and the HAp surface is evaluated by conducting a charge density difference analysis. The results show that OTC has the highest affinity to HAp because the introduction of hydroxyl groups change the adsorption configuration of OTC. Thus, OTC adsorbed on HAp in a broken-line shape exposes more binding sites. This study provides a theoretical basis for TCs as bone-targeting ligands in treating bone diseases and in improving the safety of treatment by selecting different bone-targeting ligands.
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Affiliation(s)
- Jiaming Song
- The Conversationalist Club, School of Stomatology, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an 271016, China; (J.S.); (N.C.); (X.M.); (Q.H.)
| | - Naiyu Cui
- The Conversationalist Club, School of Stomatology, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an 271016, China; (J.S.); (N.C.); (X.M.); (Q.H.)
| | - Xuran Mao
- The Conversationalist Club, School of Stomatology, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an 271016, China; (J.S.); (N.C.); (X.M.); (Q.H.)
| | - Qixuan Huang
- The Conversationalist Club, School of Stomatology, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an 271016, China; (J.S.); (N.C.); (X.M.); (Q.H.)
| | - Eui-Seok Lee
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University, Seoul 08308, Korea
- Correspondence: (E.-S.L.); (H.J.)
| | - Hengbo Jiang
- The Conversationalist Club, School of Stomatology, Shandong First Medical University, Shandong Academy of Medical Sciences, Tai’an 271016, China; (J.S.); (N.C.); (X.M.); (Q.H.)
- Correspondence: (E.-S.L.); (H.J.)
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Cheng X, Wei J, Ge Q, Xing D, Zhou X, Qian Y, Jiang G. The optimized drug delivery systems of treating cancer bone metastatic osteolysis with nanomaterials. Drug Deliv 2021; 28:37-53. [PMID: 33336610 PMCID: PMC7751395 DOI: 10.1080/10717544.2020.1856225] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Some cancers such as human breast cancer, prostate cancer, and lung cancer easily metastasize to bone, leading to osteolysis and bone destruction accompanied by a complicated microenvironment. Systemic administration of bisphosphonates (BP) or denosumab is the routine therapy for osteolysis but with non-negligible side effects such as mandibular osteonecrosis and hypocalcemia. Thus, it is imperative to exploit optimized drug delivery systems, and some novel nanotechnology and nanomaterials have opened new horizons for scientists. Targeted and local drug delivery systems can optimize biodistribution depending on nanoparticles (NPs) or microspheres (MS) and implantable biomaterials with the controllable property. Drug delivery kinetics can be optimized by smart and sustained/local drug delivery systems for responsive delivery and sustained delivery. These delicately fabricated drug delivery systems with special matrix, structure, morphology, and modification can minimize unexpected toxicity caused by systemic delivery and achieve desired effects through integrating multiple drugs or multiple functions. This review summarized recent studies about optimized drug delivery systems for the treatment of cancer metastatic osteolysis, aimed at giving some inspiration in designing efficient multifunctional drug delivery systems.
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Affiliation(s)
- Xi Cheng
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Jinrong Wei
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Qi Ge
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Danlei Xing
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Xuefeng Zhou
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Yunzhu Qian
- Center of Stomatology, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Guoqin Jiang
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
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Falanga A, Del Genio V, Kaufman EA, Zannella C, Franci G, Weck M, Galdiero S. Engineering of Janus-Like Dendrimers with Peptides Derived from Glycoproteins of Herpes Simplex Virus Type 1: Toward a Versatile and Novel Antiviral Platform. Int J Mol Sci 2021; 22:6488. [PMID: 34204295 PMCID: PMC8234430 DOI: 10.3390/ijms22126488] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 12/17/2022] Open
Abstract
Novel antiviral nanotherapeutics, which may inactivate the virus and block it from entering host cells, represent an important challenge to face viral global health emergencies around the world. Using a combination of bioorthogonal copper-catalyzed 1,3-dipolar alkyne/azide cycloaddition (CuAAC) and photoinitiated thiol-ene coupling, monofunctional and bifunctional peptidodendrimer conjugates were obtained. The conjugates are biocompatible and demonstrate no toxicity to cells at biologically relevant concentrations. Furthermore, the orthogonal addition of multiple copies of two different antiviral peptides on the surface of a single dendrimer allowed the resulting bioconjugates to inhibit Herpes simplex virus type 1 at both the early and the late stages of the infection process. The presented work builds on further improving this attractive design to obtain a new class of therapeutics.
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Affiliation(s)
- Annarita Falanga
- Department of Agricultural Sciences, University of Naples “Federico II”, Via Università 100, Portici, 80055 Naples, Italy;
| | - Valentina Del Genio
- Department of Pharmacy and CIRPEB, University of Naples “Federico II”, Via Montesano 49, 80131 Naples, Italy;
| | - Elizabeth A. Kaufman
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA; (E.A.K.); (M.W.)
| | - Carla Zannella
- Department of Experimental Medicine, Second University of Naples, Via de Crecchio 7, 80138 Naples, Italy;
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy;
| | - Marcus Weck
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA; (E.A.K.); (M.W.)
| | - Stefania Galdiero
- Department of Pharmacy and CIRPEB, University of Naples “Federico II”, Via Montesano 49, 80131 Naples, Italy;
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Kupikowska-Stobba B, Kasprzak M. Fabrication of nanoparticles for bone regeneration: new insight into applications of nanoemulsion technology. J Mater Chem B 2021; 9:5221-5244. [PMID: 34142690 DOI: 10.1039/d1tb00559f] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Introducing synthetic bone substitutes into the clinic was a major breakthrough in the regenerative medicine of bone. Despite many advantages of currently available bone implant materials such as biocompatiblity and osteoconductivity, they still suffer from relatively poor bioactivity, osteoinductivity and osteointegration. These properties can be effectively enhanced by functionalization of implant materials with nanoparticles such as osteoinductive hydroxyapatite nanocrystals, resembling inorganic part of the bone, or bioactive polymer nanoparticles providing sustained delivery of pro-osteogenic agents directly at implantation site. One of the most widespread techniques for fabrication of nanoparticles for bone regeneration applications is nanoemulsification. It allows manufacturing of nanoscale particles (<100 nm) that are injectable, 3D-printable, offer high surface-area-to-volume-ratio and minimal mass transport limitations. Nanoparticles obtained by this technique are of particular interest for biomedical engineering due to fabrication procedures requiring low surfactant concentrations, which translates into reduced risk of surfactant-related in vivo adverse effects and improved biocompatibility of the product. This review discusses nanoemulsion technology and its current uses in manufacturing of nanoparticles for bone regeneration applications. In the first section, we introduce basic concepts of nanoemulsification including nanoemulsion formation, properties and preparation methods. In the next sections, we focus on applications of nanoemulsions in fabrication of nanoparticles used for delivery of drugs/biomolecules facilitating osteogenesis and functionalization of bone implants with special emphasis on biomimetic hydroxyapatite nanoparticles, synthetic polymer nanoparticles loaded with bioactive compounds and bone-targeting nanoparticles. We also highlight key challenges in formulation of nanoparticles via nanoemulsification and outline potential further improvements in this field.
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Affiliation(s)
- Barbara Kupikowska-Stobba
- ŁUKASIEWICZ Research Network - Institute of Ceramics and Building Materials, Ceramic and Concrete Division in Warsaw, Department of Biomaterials, Postępu 9, 02-677, Warsaw, Poland.
| | - Mirosław Kasprzak
- ŁUKASIEWICZ Research Network - Institute of Ceramics and Building Materials, Ceramic and Concrete Division in Warsaw, Department of Biomaterials, Postępu 9, 02-677, Warsaw, Poland.
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11
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Ordikhani F, Zandi N, Mazaheri M, Luther GA, Ghovvati M, Akbarzadeh A, Annabi N. Targeted nanomedicines for the treatment of bone disease and regeneration. Med Res Rev 2020; 41:1221-1254. [PMID: 33347711 DOI: 10.1002/med.21759] [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: 03/30/2020] [Revised: 10/14/2020] [Accepted: 11/11/2020] [Indexed: 12/17/2022]
Abstract
Targeted delivery by either passive or active targeting of therapeutics to the bone is an attractive treatment for various bone related diseases such as osteoporosis, osteosarcoma, multiple myeloma, and metastatic bone tumors. Engineering novel drug delivery carriers can increase therapeutic efficacy and minimize the risk of side effects. Developmnet of nanocarrier delivery systems is an interesting field of ongoing studies with opportunities to provide more effective therapies. In addition, preclinical nanomedicine research can open new opportunities for preclinical bone-targeted drug delivery; nevertheless, further research is needed to progress these therapies towards clinical applications. In the present review, the latest advancements in targeting moieties and nanocarrier drug delivery systems for the treatment of bone diseases are summarized. We also review the regeneration capability and effective delivery of nanomedicines for orthopedic applications.
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Affiliation(s)
- Farideh Ordikhani
- Transplantation Research Center, Division of Renal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nooshin Zandi
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran.,Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, USA
| | - Mozhdeh Mazaheri
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
| | - Gaurav A Luther
- Department of Orthopedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Mahsa Ghovvati
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, California, Los Angeles, USA
| | - Abolfazl Akbarzadeh
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, USA.,Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, California, Los Angeles, USA
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12
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Chen P, Kong J, Wang X, Ma W, Yang X, Qin Y, Hu X. Development of Light-Responsive Poly(γ-Benzyl-L-Glutamate) as Photo Switches by a One-Step NCA Method. Front Chem 2020; 8:591. [PMID: 32850629 PMCID: PMC7417769 DOI: 10.3389/fchem.2020.00591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 06/08/2020] [Indexed: 01/20/2023] Open
Abstract
Synthesized polypeptide is attracting an increased interests due to its excellent biological characteristic and adjustable chemical properties in bio-related fields. But polypeptide itself has no switching properties, which is harmful to the development of its application as a control component. Herein, light-responsive poly(γ-benzyl-L-glutamate)s (PBLGs) is synthesized by a one-step NCA method using p-aminoazobenzene (m-AZO) and p-diaminoazobenzene (m-DAZO) as initiators. PBLGs exhibit amorphous characteristics with obvious Tg transition, which are 14°C for PBLG1 and 21°C for PBLG2. In order to forecast the structure-property information of PBLGs, theoretical UV-vis spectra as well as the energy gap between HOMO and LUMO is calculated by DFT calculation. Experimental results of UV-vis spectra exhibit similar characteristics to those of theorical UV-vis spectra except for the 40–50 nm red-shifting of absorbance peak. Furthermore, the absorbance intensities of PBLGs have a good linear relationship with their concentration, but their linearity range depending on concentration is completely different. Then, trans–cis transition under a different excitation source and cis–trans recovery in a dark environment are tracked in real-time by UV-vis spectra to evaluate the light response performances. It is found that UV light is the only effective excitation source for PBLG1, and blue light is another effective excitation source for PBLG2 besides UV light. Furthermore, the addition of alcohol and water as cosolvents has little effect on trans→cis transition in UV-light-excited systems, but it shortens recovery time of the cis→trans process in a dark environment. By contrast, the detectable isomerization process becomes unclear with the addition of alcohol in blue-light-excited system. Furthermore, either alcohol or water in solvents accelerate both the trans→cis and cis→trans process in a blue-light-excited system.
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Affiliation(s)
- Pin Chen
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Jingyang Kong
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Xin Wang
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Weiye Ma
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Xia Yang
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Yuqing Qin
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Xiaohong Hu
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
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Bai SB, Cheng Y, Liu DZ, Ji QF, Liu M, Zhang BL, Mei QB, Zhou SY. Bone-targeted PAMAM nanoparticle to treat bone metastases of lung cancer. Nanomedicine (Lond) 2020; 15:833-849. [PMID: 32163008 DOI: 10.2217/nnm-2020-0024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To prepare pH-sensitive nanoparticle composed of alendronate (ALN) and poly(amidoamine) (PAMAM) to treat bone metastases of lung cancer. Methods: The solvent evaporation method was used to prepare docetaxel (DTX)-loaded ALN-PAMAM nanoparticles (DTX@ALN-PAMAM). Results: The in vitro results showed DTX@ALN-PAMAM significantly enhanced the anticancer activity of DTX and inhibited the formation of osteoclasts. DTX@ALN-PAMAM concentrated at bone metastasis site in mice, which resulted in the suppression of bone resorption, pain response and growth of bone metastases. Eventually, the therapeutic effect of DTX on bone metastases of lung cancer was obviously improved. Conclusion: ALN modified PAMAM nanoparticle could be an effective platform for the treatment of bone metastases of lung cancer.
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Affiliation(s)
- Shao-Bo Bai
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, PR China
| | - Ying Cheng
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, PR China
| | - Dao-Zhou Liu
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, PR China
| | - Qi-Feng Ji
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, PR China
| | - Miao Liu
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, PR China
| | - Bang-le Zhang
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, PR China
| | - Qi-Bing Mei
- Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of The State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, PR China
| | - Si-Yuan Zhou
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, PR China.,Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of The State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, PR China
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14
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Rotman SG, Thompson K, Grijpma DW, Richards RG, Moriarty TF, Eglin D, Guillaume O. Development of bone seeker-functionalised microspheres as a targeted local antibiotic delivery system for bone infections. J Orthop Translat 2019; 21:136-145. [PMID: 32309139 PMCID: PMC7152806 DOI: 10.1016/j.jot.2019.07.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/04/2019] [Accepted: 07/23/2019] [Indexed: 02/01/2023] Open
Abstract
Objective Bone infections are challenging to treat because of limited capability of systemic antibiotics to accumulate at the bone site. To enhance therapeutic action, systemic treatments are commonly combined with local antibiotic-loaded materials. Nevertheless, available drug carriers have undesirable properties, including inappropriate antibiotic release profiles and nonbiodegradability. To alleviate such limitations, we aim to develop a drug delivery system (DDS) for local administration that can interact strongly with bone mineral, releasing antibiotics at the infected bone site. Methods Biodegradable polyesters (poly (ε-caprolactone) or poly (D,l-lactic acid)) were selected to fabricate antibiotic-loaded microspheres by oil in water emulsion. Antibiotic release and antimicrobial effects on Staphylococcus aureus were assessed by zone of inhibition measurements. Microsphere bone affinity was increased by functionalising the bisphosphonate drug alendronate to the microsphere surface using carbodiimide chemistry. Effect of bone targeting microspheres on bone homeostasis was tested by looking at the resorption potential of osteoclasts exposed to the developed microspheres. Results In vitro, the antibiotic release profile from the microspheres was shown to be dependent on the polymer used and the microsphere preparation method. Mineral binding assays revealed that microsphere surface modification with alendronate significantly enhanced interaction with bone-like materials. Additionally, alendronate functionalised microspheres did not differentially affect osteoclast mineral resorption in vitro, compared with nonfunctionalised microspheres. Conclusion We report the development and characterisation of a DDS which can release antibiotics in a sustained manner. Surface-grafted alendronate groups enhanced bone affinity of the microsphere construct, resulting in a bone targeting DDS. The Translational Potential of this Article The DDS presented can be loaded with hydrophobic antibiotics, representing a potential, versatile and biodegradable candidate to locally treat bone infection.
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Affiliation(s)
- Stijn G Rotman
- Musculoskeletal Regeneration Program, AO Research Institute Davos, Davos, Switzerland.,Department of Biomaterials Science and Technology, Faculty of Science and Technology, Technical Medical Centre, University of Twente, Enschede, the Netherlands
| | - Keith Thompson
- Musculoskeletal Regeneration Program, AO Research Institute Davos, Davos, Switzerland
| | - Dirk W Grijpma
- Department of Biomaterials Science and Technology, Faculty of Science and Technology, Technical Medical Centre, University of Twente, Enschede, the Netherlands
| | - Robert G Richards
- Musculoskeletal Regeneration Program, AO Research Institute Davos, Davos, Switzerland
| | - Thomas F Moriarty
- Musculoskeletal Regeneration Program, AO Research Institute Davos, Davos, Switzerland
| | - David Eglin
- Musculoskeletal Regeneration Program, AO Research Institute Davos, Davos, Switzerland
| | - Olivier Guillaume
- Musculoskeletal Regeneration Program, AO Research Institute Davos, Davos, Switzerland
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15
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Liu T, Romanova S, Wang S, Hyun MA, Zhang C, Cohen SM, Singh RK, Bronich TK. Alendronate-Modified Polymeric Micelles for the Treatment of Breast Cancer Bone Metastasis. Mol Pharm 2019; 16:2872-2883. [PMID: 31150251 DOI: 10.1021/acs.molpharmaceut.8b01343] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Although the prognosis of patients with breast cancer continues to improve, breast cancer metastasis to bones remains high in incidence and challenging to manage. Here, we report the development of bone-homing alendronate (ALN)-anchored biodegradable polymeric micelles for the targeted treatment of metastatic cancer to bone. These micelles exhibited bone protective capacity including the recruitment, differentiation, and resorption activity of the osteoclasts. Encapsulation of docetaxel (DTX), the first-line chemotherapeutic for treatment of metastatic breast cancer, in ALN-modified micelles results in a sustained release, enhanced cytotoxicity, and improved pharmacokinetics. In the syngeneic animal model of late-stage disseminated breast cancer bone metastasis, the treatment with targeted DTX-loaded micelles attenuated the tumorigenesis and significantly improved animal lifespan compared to the conventional surfactant-based formulation (free DTX). These findings indicate potential applications of the osteotropic nanomedicines for bone metastasis treatment.
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16
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Hatami E, Bhusetty Nagesh PK, Chowdhury P, Elliot S, Shields D, Chand Chauhan S, Jaggi M, Yallapu MM. Development of Zoledronic Acid-Based Nanoassemblies for Bone-Targeted Anticancer Therapy. ACS Biomater Sci Eng 2019; 5:2343-2354. [PMID: 33405784 DOI: 10.1021/acsbiomaterials.9b00362] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Bone metastasis occurs in the majority of cancer patients, which hampers quality of life and significantly decreases survival. Aggressive chemotherapy is a traditional treatment regimen that induces severe systemic toxicities. Therefore, bone-directed therapies are highly warranted. We report a novel nanoparticle formulation that is composed of poly(vinylpyrrolidone) and tannic acid core nanoparticles (PVT NPs) that forms self-assembly with zoledronic acid (ZA@PVT NPs). The construction of ZA@PVT NPs was confirmed by particle size, zeta potential, transmission electron microscopy, and spectral analyses. An optimized bone-targeted ZA@PVT NPs formulation showed greater binding and internalization in in vitro with metastasis prostate and breast cancer cells. ZA@PVT NPs were able to deliver ZA more efficiently to tumor cells, which inhibited proliferation of human prostate and breast cancer cells. In addition, ZA@PVT NPs were capable of targeting mouse bones and prostate tumor microarray tissues (ex vivo) while sparing all other vital organs. More importantly, ZA@PVT NPs induce chemo sensitization to docetaxel treatment in cancer cells. Overall, the study results confirm that ZA-based, bone-targeted NPs have great potential for the treatment of bone metastasis in the near future.
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Affiliation(s)
- Elham Hatami
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Prashanth Kumar Bhusetty Nagesh
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Pallabita Chowdhury
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Stacie Elliot
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Deanna Shields
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Subhash Chand Chauhan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Meena Jaggi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Murali Mohan Yallapu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
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17
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Ramanathan S, Archunan G, Sivakumar M, Tamil Selvan S, Fred AL, Kumar S, Gulyás B, Padmanabhan P. Theranostic applications of nanoparticles in neurodegenerative disorders. Int J Nanomedicine 2018; 13:5561-5576. [PMID: 30271147 PMCID: PMC6154717 DOI: 10.2147/ijn.s149022] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The preeminent treatments for neurodegenerative disease are often unavailable due to the poor accessibility of therapeutic drugs. Moreover, the blood–brain barrier (BBB) effectively blocks the transfer of cells, particles and large molecules, ie, drugs, across the brain. The most important challenge in the treatment of neurodegenerative diseases is the development of targeted drug delivery system. Theranostic strategies are known to combine therapeutic and diagnostic capabilities together. The aim of this review was to record the response to treatment and thereby improve drug safety. Nanotechnology offers a platform for designing and developing theranostic agents that can be used as an efficient nano-carrier system. This is achieved by the manipulation of some of the properties of nanoparticles (NPs), thereby enabling the attachment of suitable drugs onto their surface. The results provide revolutionary treatments by stimulation and thus interaction with targeted sites to promote physiological response with minimum side effects. This review is a brief discussion of the administration of drugs across the brain and the advantages of using NPs as an effective theranostic platform in the treatment of Alzheimer’s, Parkinson’s, epilepsy and Huntington’s disease.
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Affiliation(s)
- Sahana Ramanathan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, ,
| | - Govindaraju Archunan
- Department of Animal Science, Centre for Pheromone Technology (CPT), Bharathidasan University, Tiruchirappalli, India
| | - Muthusamy Sivakumar
- Nanoscience and Technology, Anna University - BIT Campus, Tiruchirappalli, India
| | | | - A Lenin Fred
- Mar Ephraem College of Engineering and Technology, Kanyakumari, India
| | - Sundramurthy Kumar
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, ,
| | - Balázs Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, ,
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18
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Eskinazi-Budge A, Manickavasagam D, Czech T, Novak K, Kunzler J, Oyewumi MO. Preparation of emulsifying wax/glyceryl monooleate nanoparticles and evaluation as a delivery system for repurposing simvastatin in bone regeneration. Drug Dev Ind Pharm 2018; 44:1583-1590. [DOI: 10.1080/03639045.2018.1483381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Aaron Eskinazi-Budge
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Dharani Manickavasagam
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
- Department of Biomedical Sciences, Kent State University, Kent, OH, USA
| | - Tori Czech
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Kimberly Novak
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
| | - James Kunzler
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Moses O. Oyewumi
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
- Department of Biomedical Sciences, Kent State University, Kent, OH, USA
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19
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Rotman SG, Grijpma DW, Richards RG, Moriarty TF, Eglin D, Guillaume O. Drug delivery systems functionalized with bone mineral seeking agents for bone targeted therapeutics. J Control Release 2017; 269:88-99. [PMID: 29127000 DOI: 10.1016/j.jconrel.2017.11.009] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/06/2017] [Accepted: 11/06/2017] [Indexed: 01/28/2023]
Abstract
The systemic administration of drugs to treat bone diseases is often associated with poor uptake of the drug in the targeted tissue, potential systemic toxicity and suboptimal efficacy. In order to overcome these limitations, many micro- and nano-sized drug carriers have been developed for the treatment of bone pathologies that exhibit specific affinity for bone. Drug carriers can be functionalized with bone mineral seekers (BMS), creating a targeted drug delivery system (DDS) which is able to bind to bone and release therapeutics directly at the site of interest. This class of advanced DDS is of tremendous interest due to their strong affinity to bone, with great expectation to treat life-threatening bone disorders such as osteomyelitis, osteosarcoma or even osteoporosis. In this review, we first explain the mechanisms behind the affinity of several well-known BMS to bone, and then we present several effective approaches allowing the incorporation BMS into advanced DDS. Finally, we report the therapeutic applications of BMS based DDS under development or already established. Understanding the mechanisms behind the biological activity of recently developed BMS and their integration into advanced therapeutic delivery systems are essential prerequisites for further development of bone-targeting therapies with optimal efficacy.
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Affiliation(s)
- S G Rotman
- AO Research Institute Davos, Switzerland; MIRA Institute for Biomedical Technology and Technical Medicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - D W Grijpma
- MIRA Institute for Biomedical Technology and Technical Medicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | | | | | - D Eglin
- AO Research Institute Davos, Switzerland
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20
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Mitić Ž, Stolić A, Stojanović S, Najman S, Ignjatović N, Nikolić G, Trajanović M. Instrumental methods and techniques for structural and physicochemical characterization of biomaterials and bone tissue: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.127] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Hirano Y, Iwasaki Y. Bone-specific poly(ethylene sodium phosphate)-bearing biodegradable nanoparticles. Colloids Surf B Biointerfaces 2017; 153:104-110. [PMID: 28231498 DOI: 10.1016/j.colsurfb.2017.02.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 01/10/2017] [Accepted: 02/13/2017] [Indexed: 10/20/2022]
Abstract
Chemotherapy is the most reliable treatment for osteoporosis and osseous metastases. To facilitate better drug delivery for bone treatments, a novel preparation of polymeric nanoparticles with high affinity to bone has been prepared. Two-step synthesis of cholesteryl-functionalized poly(ethylene sodium phosphate) (Ch-PEPn·Na) was performed via ring-opening polymerization of cyclic phosphoesters and the demethylation. The molecular weight of Ch-PEPn·Na could be well controlled by changing the ratio of cholesterol and cyclic phosphoesters. Because Ch-PEPn·Na exhibits an amphiphilic nature in aqueous media, Ch-PEPn·Na-bearing nanoparticles (PEPn·Na NPs) were prepared by a solvent evaporation technique. The size of the nanoparticles investigated in the current study is approximately 100nm, which was determined by dynamic light scattering (DLS) and transmission electron microscopy (TEM). Due to the presence of highly water-soluble polymer chains, dispersion of PEPn·Na NPs in aqueous media was stable for at least 1 week. Hemolytic activity of PEPn·Na NPs was found to be low and PEPn·Na NPs did not disintegrate mammalian cell membranes. Additionally, cytotoxicity of PEPn·Na NPs was not observed at concentrations below 100μg/mL. The adsorption of PEPn·Na NPs on hydroxyapatite (HAp) microparticles was studied in comparison with poly(ethylene glycol) nanoparticles (PEG NPs). Both PEPn·Na NPs and PEG NPs adsorbed well onto HAp microparticles in distilled water with binding equilibrium constants (KHAp) for PEPn·Na NPs and PEG NPs of 3.6×106 and 7.9×106, respectively. In contrast, only PEPn·Na NPs adsorbed onto HAp microparticles in a saline phosphate buffer. Moreover, the adsorption of PEPn·Na NPs onto HAp microparticles occurred even in the presence of 1.2mM calcium ions or low-pH media. The affinity of the nanoparticles to bovine bone slices was also studied, with the result that large quantities of adsorbed PEPn·Na NPs were observed on the slices by scanning electron microscope.
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Affiliation(s)
- Yuya Hirano
- Graduate School of Science and Engineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka, 564-8680, Japan
| | - Yasuhiko Iwasaki
- Department of Chemistry and Materials, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka, 564-8680, Japan; ORDIST, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka, 564-0836, Japan.
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22
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Calcium phosphate nanoparticles functionalized with alendronate-conjugated polyethylene glycol (PEG) for the treatment of bone metastasis. Int J Pharm 2016; 516:352-363. [PMID: 27887884 DOI: 10.1016/j.ijpharm.2016.11.051] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/13/2016] [Accepted: 11/22/2016] [Indexed: 01/19/2023]
Abstract
Because of the peculiarity of the bone microstructure, the uptake of chemotherapeutics often happens at non-targeted sites, which induces side effects. In order to solve this problem, we designed a bone-targeting drug delivery system that can release drug exclusively in the nidus of the bone. Alendronate (ALN), which has a high ability to target to hydroxyapatite, was used to fabricate double ALN-conjugated poly (ethylene glycol) 2000 material (ALN-PEG2k-ALN). The ALN-PEG2k-ALN was characterized using 1H NMR and 31P NMR and FTIR. ALN-PEG2k-ALN-modified calcium phosphate nanoparticles (APA-CPNPs) with an ALN targeting moiety and hydrophilic poly (ethylene glycol) arms tiled on the surface was prepared for bone-targeted drug delivery. The distribution of ALN-PEG2k-ALN was tested by X-ray photoelectron spectroscopy. Isothermal titration calorimetry data indicated that similar to free ALN, both ALN-PEG2k-ALN and APA-CPNPs can bind to calcium ions. The bone-binding ability of APA-CPNPs was verified via ex vivo imaging of bone fragments. An in vitro release experiment demonstrated that APA-CPNPs can release drug faster in an acid environment than a neutral environment. Cell viability experiments indicated that blank APA-CPNPs possessed excellent biocompatibility with normal cells. Methotrexate (MTX) loaded APA-CPNPs have the same ability to inhibit cancer cells as free drug at high concentrations, while they are slightly weaker at low concentrations. All of these experiments verified the prospective application of APA-CPNPs as a bone-targeting drug delivery system.
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Hu Q, Qian C, Sun W, Wang J, Chen Z, Bomba HN, Xin H, Shen Q, Gu Z. Engineered Nanoplatelets for Enhanced Treatment of Multiple Myeloma and Thrombus. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:9573-9580. [PMID: 27626769 PMCID: PMC5283718 DOI: 10.1002/adma.201603463] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/07/2016] [Indexed: 05/09/2023]
Abstract
A platelet-membrane-coated biomimetic nanocarrier, which can sequentially target the bone microenvironment and myeloma cells to enhance the drug availability at the myeloma site and decrease off-target effects, is developed for inhibiting multiple myeloma growth and simultaneously eradicating thrombus complication.
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Affiliation(s)
- Quanyin Hu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA and Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Chenggen Qian
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA and Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023, China
| | - Wujin Sun
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA and Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jinqiang Wang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA and Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Zhaowei Chen
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA and Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Hunter N. Bomba
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA and Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Hongliang Xin
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA and Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Qundong Shen
- Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023, China
| | - Zhen Gu
- Corresponding author. ; Phone: 1-919-515-7944
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Carbone EJ, Rajpura K, Allen BN, Cheng E, Ulery BD, Lo KWH. Osteotropic nanoscale drug delivery systems based on small molecule bone-targeting moieties. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 13:37-47. [PMID: 27562211 DOI: 10.1016/j.nano.2016.08.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 08/02/2016] [Accepted: 08/05/2016] [Indexed: 12/22/2022]
Abstract
Bone-targeted drug delivery is an active research area because successful clinical applications of this technology can significantly advance the treatment of bone injuries and disorders. Molecules with bone-targeting potential have been actively investigated as promising moieties in targeted drug delivery systems. In general, bone-targeting molecules are characterized by their high affinity for bone and their predisposition to persist in bone tissue for prolonged periods, while maintaining low systemic concentrations. Proteins, such as monoclonal antibodies, have shown promise as bone-targeting molecules; however, they suffer from several limitations including large molecular size, high production cost, and undesirable immune responses. A viable alternative associated with significantly less side effects is the use of small molecule-based targeting moieties. This review provides a summary of recent findings regarding small molecule compounds with bone-targeting capacity, as well as nanoscale targeted drug delivery approaches employing these molecules.
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Affiliation(s)
- Erica J Carbone
- Institute for Regenerative Engineering, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; The Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; Division of Endocrinology, Department of Medicine, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; UConn Stem Cell Institute, University of Connecticut Health Center, Farmington, CT, USA
| | - Komal Rajpura
- Institute for Regenerative Engineering, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; The Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; Connecticut Institute for Clinical and Translational Science, University of Connecticut Health Center, Farmington, CT, USA
| | - Brittany N Allen
- Department of Bioengineering, University of Missouri, Columbia, MO, USA
| | - Emily Cheng
- Department of Chemical Engineering, University of Missouri, Columbia, MO, USA
| | - Bret D Ulery
- Department of Chemical Engineering, University of Missouri, Columbia, MO, USA
| | - Kevin W-H Lo
- Institute for Regenerative Engineering, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; The Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; Division of Endocrinology, Department of Medicine, University of Connecticut Health Center, School of Medicine, Farmington, CT, USA; UConn Stem Cell Institute, University of Connecticut Health Center, Farmington, CT, USA; Department of Biomedical Engineering, University of Connecticut, School of Engineering, Storrs, CT, USA; Connecticut Institute for Clinical and Translational Science, University of Connecticut Health Center, Farmington, CT, USA.
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25
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Cole LE, Vargo-Gogola T, Roeder RK. Targeted delivery to bone and mineral deposits using bisphosphonate ligands. Adv Drug Deliv Rev 2016; 99:12-27. [PMID: 26482186 DOI: 10.1016/j.addr.2015.10.005] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 10/01/2015] [Accepted: 10/09/2015] [Indexed: 01/07/2023]
Abstract
The high concentration of mineral present in bone and pathological calcifications is unique compared with all other tissues and thus provides opportunity for targeted delivery of pharmaceutical drugs, including radiosensitizers and imaging probes. Targeted delivery enables accumulation of a high local dose of a therapeutic or imaging contrast agent to diseased bone or pathological calcifications. Bisphosphonates (BPs) are the most widely utilized bone-targeting ligand due to exhibiting high binding affinity to hydroxyapatite mineral. BPs can be conjugated to an agent that would otherwise have little or no affinity for the sites of interest. This article summarizes the current state of knowledge and practice for the use of BPs as ligands for targeted delivery to bone and mineral deposits. The clinical history of BPs is briefly summarized to emphasize the success of these molecules as therapeutics for metabolic bone diseases. Mechanisms of binding and the relative binding affinity of various BPs to bone mineral are introduced, including common methods for measuring binding affinity in vitro and in vivo. Current research is highlighted for the use of BP ligands for targeted delivery of BP conjugates in various applications, including (1) therapeutic drug delivery for metabolic bone diseases, bone cancer, other bone diseases, and engineered drug delivery platforms; (2) imaging probes for scintigraphy, fluorescence, positron emission tomography, magnetic resonance imaging, and computed tomography; and (3) radiotherapy. Last, and perhaps most importantly, key structure-function relationships are considered for the design of drugs with BP ligands, including the tether length between the BP and drug, the size of the drug, the number of BP ligands per drug, cleavable tethers between the BP and drug, and conjugation schemes.
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Affiliation(s)
- Lisa E Cole
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, IN 46556, United States; Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, United States
| | - Tracy Vargo-Gogola
- Department of Biochemistry and Molecular Biology, Indiana University Simon Cancer Center, Indiana University School of Medicine-South Bend, South Bend, IN 46617, United States; Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, United States
| | - Ryan K Roeder
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, IN 46556, United States; Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, United States.
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26
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Cui N, Qian J, Wang J, Ji C, Xu W, Wang H. Preparation and characterization of foamy poly(γ-benzyl-l-glutamate-co-l-phenylalanine)/bioglass composite scaffolds for bone tissue engineering. RSC Adv 2016. [DOI: 10.1039/c6ra04356a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Novel foamy scaffolds of poly(γ-benzyl-l-glutamate) and poly(γ-benzyl-l-glutamate-co-l-phenylalanine) were fabricated via a combination of a sintered NaCl templating method and ring-opening polymerization of α-amino acid N-carboxyanhydrides.
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Affiliation(s)
- Ning Cui
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Junmin Qian
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Jinlei Wang
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Chuanlei Ji
- The Orthopaedic Department
- Xi Jing Hospital Affiliated to the Fourth Military Medical University
- Xi'an 710032
- China
| | - Weijun Xu
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Hongjie Wang
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
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27
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Sun W, Fang J, Yong Q, Li S, Xie Q, Yin J, Cui L. Subcutaneous Construction of Engineered Adipose Tissue with Fat Lobule-Like Structure Using Injectable Poly-Benzyl-L-Glutamate Microspheres Loaded with Adipose-Derived Stem Cells. PLoS One 2015; 10:e0135611. [PMID: 26274326 PMCID: PMC4537260 DOI: 10.1371/journal.pone.0135611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 07/24/2015] [Indexed: 11/18/2022] Open
Abstract
Porous microcarriers were fabricated from synthesized poly(γ-benzyl-L-glutamate) (PBLG) polymer to engineer adipose tissue with lobule-like structure via the injectable approach. The adipogenic differentiation of human adipose-derived stem cells (hASCs) seeded on porous PBLG microcarriers was determined by adipogenic gene expression and glycerol-3-phosphate dehydrogenase enzyme activity. In vitro adipogenic cultivation was performed for 7 days, and induced hASC/PBLG complex (Adi-ASC/PBLG group) was subcutaneously injected into nude mice. Injections of PBLG microcarriers alone (PBLG group) and non-induced hASC/PBLG complex (ASC/PBLG group) served as controls. Newly formed tissues were harvested after 4 and 8 weeks. Generation of subcutaneous adipose tissue with typical lobule-like structure separated by fibrous septa was observed upon injection of adipogenic-induced hASC/microsphere complex. Adipogenesis significantly increased in the Adi-ASC/PBLG group compared with the control groups. The angiogenesis in the engineered adipose tissue was comparable to that in normal tissue as determined by capillary density and luminal diameter. Cell tracking assay demonstrated that labeled hASCs remained detectable in the neo-generated tissues 8 weeks post-injection using green fluorescence protein-labeled hASCs. These results indicate that adipose tissue with typical lobule-like structure could be engineered using injectable porous PBLG microspheres loaded with adipogenic-induced hASCs.
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Affiliation(s)
- Wentao Sun
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jianjun Fang
- Department of Polymer Materials, Shanghai University, Shanghai, People's Republic of China
| | - Qi Yong
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Sufang Li
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, People's Republic of China
| | - Qingping Xie
- Department of Hand Surgery, Zhejiang Provincial People’s Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - Jingbo Yin
- Department of Polymer Materials, Shanghai University, Shanghai, People's Republic of China
| | - Lei Cui
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Cong Y, Quan C, Liu M, Liu J, Huang G, Tong G, Yin Y, Zhang C, Jiang Q. Alendronate-decorated biodegradable polymeric micelles for potential bone-targeted delivery of vancomycin. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:629-43. [DOI: 10.1080/09205063.2015.1053170] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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29
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de Miguel L, Cebrián-Torrejón G, Caudron E, Arpinati L, Doménech-Carbó A, Ponchel G. Bone-Targeted Cisplatin-Complexed Poly(γ-benzyl-L-glutamate)-Poly(glutamic acid) Block Polymer Nanoparticles: An Electrochemical Approach. ChemElectroChem 2015. [DOI: 10.1002/celc.201402400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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de Miguel L, Popa I, Noiray M, Caudron E, Arpinati L, Desmaele D, Cebrián-Torrejón G, Doménech-Carbó A, Ponchel G. Osteotropic Polypeptide Nanoparticles with Dual hydroxyapatite Binding Properties and Controlled Cisplatin Delivery. Pharm Res 2014; 32:1794-803. [DOI: 10.1007/s11095-014-1576-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 11/11/2014] [Indexed: 12/18/2022]
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Jiang T, Yu X, Carbone EJ, Nelson C, Kan HM, Lo KWH. Poly aspartic acid peptide-linked PLGA based nanoscale particles: Potential for bone-targeting drug delivery applications. Int J Pharm 2014; 475:547-57. [DOI: 10.1016/j.ijpharm.2014.08.067] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 08/24/2014] [Accepted: 08/27/2014] [Indexed: 12/25/2022]
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Hennig R, Pollinger K, Veser A, Breunig M, Goepferich A. Nanoparticle multivalency counterbalances the ligand affinity loss upon PEGylation. J Control Release 2014; 194:20-7. [PMID: 25128717 DOI: 10.1016/j.jconrel.2014.07.062] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/28/2014] [Accepted: 07/30/2014] [Indexed: 11/27/2022]
Abstract
The conjugation of receptor ligands to shielded nanoparticles is a widely used strategy to precisely control nanoparticle-cell interactions. However, it is often overlooked that a ligand's affinity can be severely impaired by its attachment to the polyethylene glycol (PEG) chains that are frequently used to protect colloids from serum protein adsorption. Using the model ligand EXP3174, a small-molecule antagonist for the angiotensin II receptor type 1 (AT1R), we investigated the ligand's affinity before and after its PEGylation and when attached to PEGylated nanoparticles. The PEGylated ligand displayed a 580-fold decreased receptor affinity compared to the native ligand. Due to their multivalency, the nanoparticles regained a low nanomolar receptor affinity, which is in the range of the affinity of the native ligand. Moreover, a four orders of magnitude higher concentration of free ligand was required to displace PEGylated nanoparticles carrying EXP3174 from the receptor. On average, one nanoparticle was decorated with 11.2 ligand molecules, which led to a multivalent enhancement factor of 22.5 compared to the monovalent PEGylated ligand. The targeted nanoparticles specifically bound the AT1R and showed no interaction to receptor negative cells. Our study shows that the attachment of a small-molecule ligand to a PEG chain can severely affect its receptor affinity. Concomitantly, when the ligand is tethered to nanoparticles, the immense avidity greatly increases the ligand-receptor interaction. Based on our results, we highly recommend the affinity testing of receptor ligands before and after PEGylation to identify potent molecules for active nanoparticle targeting.
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Affiliation(s)
- Robert Hennig
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Klaus Pollinger
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Anika Veser
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Miriam Breunig
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Achim Goepferich
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany.
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