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Matsumiya K, Inagaki NF, Ito T. Fabrication of Drug-Loaded Torus-Shaped Alginate Microparticles and Kinetic Analysis of Their Drug Release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1247-1256. [PMID: 37988317 DOI: 10.1021/acs.langmuir.3c02626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
We fabricated drug-loaded, microsized, and torus-shaped alginate microparticles (TSMs) by vortex-ring freezing (VRF), utilizing vortex ring formation and ionic cross-linking. The equivalent outer diameter of the TSMs was ca. 200 μm. Several model drugs, such as doxorubicin, heparin, lysozyme, and several dextran derivatives, have been successfully loaded into TSMs. Because the TSMs were fragile due to the limitation of the process conditions of the VRF, drug-loaded TSMs were subsequently cross-linked via "post-cross-linking" with CaCl2, SrCl2, or BaCl2 to increase the cross-linking density of the alginate matrix, thereby enhancing the stability of dextran (Dex)-loaded TSMs (Dex-TSMs) and enabling the sustained release of natural Dex of 10, 70, or 150 kDa and cationic or anionic Dex at a physiological pH. The release kinetics of Dexs showed molecular weight and charge dependence; a relatively dense network of the alginate matrix of post-cross-linked TSMs resulted in the sustained release of Dexs with high molecular weights, heparin, and lysozyme for up to 7 days in the release test. Furthermore, the solute diffusivities of the dextran derivatives in the bulk alginate matrix were measured by using fluorescence correlation spectroscopy, which supported the release kinetics of TSMs. Drug-loaded TSMs have potential as drug carriers for biopharmaceuticals, such as proteins.
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Affiliation(s)
- Kazuki Matsumiya
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Natsuko F Inagaki
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taichi Ito
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Radiology and Biomedical Engineering, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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2
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Tang H, Zaroudi M, Zhu Y, Cheng A, Qin L, Zhang B, Liu Y. Toroidal-spiral particles as a CAR-T cell delivery device for solid tumor immunotherapy. J Control Release 2023; 362:620-630. [PMID: 37673306 PMCID: PMC10947521 DOI: 10.1016/j.jconrel.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 08/29/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
Chimeric antigen receptor (CAR) T cell therapy has resulted in positive effects on patients with hematologic malignancy but shows limited efficacy in solid tumor treatments due to insufficient trafficking and tumor infiltration, intensive CAR-T-related toxicities, and antigen escape. In this work, we developed and investigated a biodegradable and biocompatible polymeric toroidal-spiral particle (TSP) as a in vivo cell incubator and delivery device that can be implanted near tumor through a minimally invasive procedure or injected near or into solid tumors by using a biopsy needle. The main matrix structure of the millimeter-sized TSP is made from crosslinking of gelatin methacrylamine (GelMA) and poly (ethylene glycol) diacrylate (PEGDA) with a tunable degradation rate from a few days to months, providing appropriate mechanical properties and sustained release of co-encapsulated drugs and/or stimulation compounds. The toroidal-spiral layer of the particles, presenting an internal void volume for high-capacity cell loading and flexibility of co-encapsulating small and large molecular compounds with individually manipulated release schedules, is filled with collagen and suspended T cells. The TSPs promote cell proliferation, activation, and migration in the tumor micro-environment in a prolonged and sustained manner. In this study, the efficacy of mesothelin (MSLN) CAR-T cells released from the TSPs was tested in preclinical mouse tumor models. Compared to systemic and intratumoral injection, peritumoral delivery of MSLN CAR-T cells using the TSPs resulted in a superior antitumor effect. The TSPs made of FDA approved materials as an in vivo reactor may provide an option for efficiently local delivery of CAR-T cells to solid tumors for higher efficacy and lower toxicity, with a minimally invasive administration procedure.
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Affiliation(s)
- Hui Tang
- Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Maryam Zaroudi
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL, United States
| | - Yuli Zhu
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL, United States
| | - Alex Cheng
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL, United States
| | - Lei Qin
- Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Bin Zhang
- Feinberg School of Medicine, Northwestern University, Chicago, IL, United States.
| | - Ying Liu
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL, United States; Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, United States; Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, United States.
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3
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Tuneable electrohydrodynamics of core-shell graphene oxide vortex rings. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Leon Plata P, Zaroudi M, Lee CY, Foster C, Nitsche LC, Rios PD, Wang Y, Oberholzer J, Liu Y. Heterogeneous toroidal spiral particles for islet encapsulation. Biomater Sci 2021; 9:3954-3967. [PMID: 33620354 DOI: 10.1039/d0bm02082f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transplantable cell encapsulation systems present a promising approach to deliver a therapeutic solution from hormone-producing cells for the treatment of endocrine diseases like type 1 diabetes. However, the development of a broadly effective and safe transplantation system has been challenging. While some current micro-sized capsules have been optimized for adequate nutrient and metabolic transport, they lack the robustness and retrievability for the clinical safety translation that macro-devices may offer. An existing challenge to be addressed in the current macro-devices is their configuration which may lead to unsatisfactory mass transfer. Here, we design and characterize a millimeter-size particle system of poly-ethylene glycol (PEG) featuring internal toroidal spiral channels, called toroidal spiral particles (TSPs). The characteristic internal structure of the TSPs allows for large encapsulation capacity and large surface area available to all the encapsulated cell mass for effective molecular diffusion. The polymeric matrix renders the particle flexible yet robust for safe transplantation and retrieval. We demonstrate the feasibility of fabricating these particles with various polymer compositions, while optimizing their mechanical properties as well as glucose and insulin permeability. Encapsulation of islets of Langerhans is achieved with high loading capacity (∼160 IEQ per TSP) and excellent cell viability. TSP-encapsulated islets showed similar glucose-stimulated insulin secretion to the naked islets. Preliminary biocompatibility of the TSPs on naïve C57BL/6 mice shows minimal inflammatory response after 4-week transplantation into the intraperitoneal (IP) space. Long-term therapeutic efficacy of encapsulated islets needs to be confirmed in diabetic rodent models in the future, while determining minimal mass required to reverse diabetes. However, we believe from the in vitro favorable results and the TSPs' unique design that TSPs may provide a safe, effective method to transplant and retrieve therapeutic cells for type 1 diabetes treatment and may also be applicable for other cell therapies.
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Affiliation(s)
- Paola Leon Plata
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL, USA.
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5
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Liu C, Leon-Plata P, Zaroudi M, Dusza M, Lee CY, Liu Y. Heterogeneous Polymeric Particles Encapsulating Human T cells for Controlled Activation, Proliferation, and Delivery. ACS APPLIED BIO MATERIALS 2020; 3:7357-7362. [PMID: 35019477 DOI: 10.1021/acsabm.0c00992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a particulate cell delivery platform, toroidal spiral particles (TSPs), for continuous cell activation, expansion, and local sustained release. Biocompatible TSPs, generated by a self-assembly process of polymeric droplet sedimentation in an aqueous solution and subsequent polymer solidification, possess many engineering design flexibilities to manipulate the microenvironment of the cells to control cell proliferation, migration, and release kinetics. These millimeter-size particles with desired mechanical and physicochemical properties may be potentially used for adoptive cellular therapy (ACT) delivery by a minimally invasive procedure to the tumor mass.
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Yang Q, Jiang Y, Fan D, Zheng K, Zhang J, Xu Z, Yao W, Zhang Q, Song Y, Zheng Q, Fan L, Gao W, Gao C. Nonsphere Drop Impact Assembly of Graphene Oxide Liquid Crystals. ACS NANO 2019; 13:8382-8391. [PMID: 31291085 DOI: 10.1021/acsnano.9b03926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Creating long-lived topological textured liquid crystals (LCs) in confined nonspherical space is of significance in both generations of structures and fundamental studies of topological physics. However, it remains a great challenge due to the fluid character of LCs and the unstable tensional state of transient nonspheres. Here, we realize a rich series of topological textures confined in nonspherical geometries by drop impact assembly (DIA) of graphene oxide (GO) aqueous LCs. Various highly curved nonspherical morphologies of LCs were captured by gelator bath, generating distinct out-of-equilibrium yet long-lived macroscopic topological textures in 3D confinement. Our hydrodynamic investigations on DIA processes reveal that the shear-thinning fluid behavior of LCs and the arrested GO alignments mainly contribute to the topological richness in DIA. Utilizing the shaping behavior of GO LCs compared to other conventional linear polymers such as alginate, we further extend the DIA methodology to design more complex yet highly controllable functional composites and hybrids. This work thus reveals the potential to scale production of uniform yet anisotropic materials with rich topologic textures and tailored composition.
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Affiliation(s)
- Qiuyan Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Yanqiu Jiang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Dongyu Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Kan Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Jiayi Zhang
- State Key Laboratory of Clean Energy Utilization , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Weiquan Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Qingxu Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Yihu Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Qiang Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Liwu Fan
- State Key Laboratory of Clean Energy Utilization , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Weiwei Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , People's Republic of China
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Jain U, Jalaal M, Lohse D, van der Meer D. Deep pool water-impacts of viscous oil droplets. SOFT MATTER 2019; 15:4629-4638. [PMID: 31111135 DOI: 10.1039/c9sm00318e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We experimentally study the impacts of viscous, immiscible oil drops into a deep pool of water. Within the target liquid pool, the impacting drop creates a crater, whose dynamics are studied. It is found that the inertia of pool liquid and drop viscosity are the main factors that determine the crater's maximum depth, while the additional factor of mutual immiscibility between the drop and pool liquids leads to interesting interfacial dynamics along the oil-water interface. We discuss how this can change the crater dynamics in its retraction phase, making possible a type of double-entrainment, whereby a tiny air bubble is entrapped inside a water-entrained oil drop. Further, we report the observation of a type of 'fingering' that occurs along the oil-drop rim, which we discuss, arises as a remnant of the well-known crown-splash instability.
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Affiliation(s)
- Utkarsh Jain
- Physics of Fluids Group and Max Planck Center Twente for Complex Fluid Dynamics, MESA+ Institute and J. M. Burgers Centre for Fluid Dynamics, University of Twente, P.O. Box 217, 7500AE Enschede, The Netherlands.
| | - Maziyar Jalaal
- Physics of Fluids Group and Max Planck Center Twente for Complex Fluid Dynamics, MESA+ Institute and J. M. Burgers Centre for Fluid Dynamics, University of Twente, P.O. Box 217, 7500AE Enschede, The Netherlands.
| | - Detlef Lohse
- Physics of Fluids Group and Max Planck Center Twente for Complex Fluid Dynamics, MESA+ Institute and J. M. Burgers Centre for Fluid Dynamics, University of Twente, P.O. Box 217, 7500AE Enschede, The Netherlands. and Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
| | - Devaraj van der Meer
- Physics of Fluids Group and Max Planck Center Twente for Complex Fluid Dynamics, MESA+ Institute and J. M. Burgers Centre for Fluid Dynamics, University of Twente, P.O. Box 217, 7500AE Enschede, The Netherlands.
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8
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Zhou H, Xu L, Wen Y, Lin K, Zeng X. Ring-like structured chitosan-metal hydrogel: Mass production, formation mechanism and applications. J Colloid Interface Sci 2017; 490:233-241. [DOI: 10.1016/j.jcis.2016.11.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/15/2016] [Accepted: 11/19/2016] [Indexed: 01/29/2023]
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9
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An D, Warning A, Yancey KG, Chang CT, Kern VR, Datta AK, Steen PH, Luo D, Ma M. Mass production of shaped particles through vortex ring freezing. Nat Commun 2016; 7:12401. [PMID: 27488831 PMCID: PMC4976289 DOI: 10.1038/ncomms12401] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 06/29/2016] [Indexed: 11/15/2022] Open
Abstract
A vortex ring is a torus-shaped fluidic vortex. During its formation, the fluid experiences a rich variety of intriguing geometrical intermediates from spherical to toroidal. Here we show that these constantly changing intermediates can be 'frozen' at controlled time points into particles with various unusual and unprecedented shapes. These novel vortex ring-derived particles, are mass-produced by employing a simple and inexpensive electrospraying technique, with their sizes well controlled from hundreds of microns to millimetres. Guided further by theoretical analyses and a laminar multiphase fluid flow simulation, we show that this freezing approach is applicable to a broad range of materials from organic polysaccharides to inorganic nanoparticles. We demonstrate the unique advantages of these vortex ring-derived particles in several applications including cell encapsulation, three-dimensional cell culture, and cell-free protein production. Moreover, compartmentalization and ordered-structures composed of these novel particles are all achieved, creating opportunities to engineer more sophisticated hierarchical materials.
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Affiliation(s)
- Duo An
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Alex Warning
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Kenneth G. Yancey
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Chun-Ti Chang
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Vanessa R. Kern
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Ashim K. Datta
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Paul H. Steen
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Dan Luo
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
- Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, New York 14853, USA
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
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Egunov AI, Inaba A, Gree S, Malval JP, Tamura K, Saito Y, Luchnikov VA. Time-programmed release of fluoroscein isocyanate dextran from micro-pattern-designed polymer scrolls. J Control Release 2016; 233:39-47. [PMID: 27179634 DOI: 10.1016/j.jconrel.2016.05.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 11/25/2022]
Abstract
In this article we present a relevant strategy for a non-trivial time-programmed release of water-soluble macromolecules from biocompatible μ-containers. The system is based on self-scrolled chitosan acetate (CA) fibers, encapsulated in a poly(dimethylsiloxane) matrix. Mass transfer between a fiber and the external environment takes place via the only opened extremity of the fiber. Fluoroscein isocyanate dextran (FID) is initially deposited at the inner surface of the CA fiber according to a programmed pattern. The FID molecules became mobile after the arriving of the swelling front, which propagates along the fiber's axis upon the immersion of the system in aqueous solution. Diffusion of the macromolecules into the environment is enabled by the open-tube geometry of the swollen part of the fiber, while a programmed kinetics of the drug release is due to patterning of the polymer film prior to rolling. The release of the macromolecules can be retarded by a few hours according to the placement of the FID spot with respect to the fibers orifice. A pulsatile release kinetics is demonstrated for a discrete pattern. A few millimeter spacing of the FID spots results in a few hours time interval between the release impulses. Random walk model is plugged in the effective diffusion coefficient for Fick's law and the release kinetics are simulated.
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Affiliation(s)
- Aleksandr I Egunov
- Institut de Science des Matériaux de Mulhouse, UMR 7361, CNRS-Université de Haute-Alsace, 15, rue Jean Starcky, Mulhouse 68057, France
| | - Ayano Inaba
- Industrial Research Institute of Shizuoka Prefecture, 2078 Makigaya, Aoi-ku, Shizuoka 421-1298, Japan
| | - Simon Gree
- Institut de Science des Matériaux de Mulhouse, UMR 7361, CNRS-Université de Haute-Alsace, 15, rue Jean Starcky, Mulhouse 68057, France
| | - Jean-Pierre Malval
- Institut de Science des Matériaux de Mulhouse, UMR 7361, CNRS-Université de Haute-Alsace, 15, rue Jean Starcky, Mulhouse 68057, France
| | - Katsuhiro Tamura
- Industrial Research Institute of Shizuoka Prefecture, 2078 Makigaya, Aoi-ku, Shizuoka 421-1298, Japan
| | - Yukie Saito
- The University of Tokyo, Department of Global Agricultural Sciences, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Valeriy A Luchnikov
- Institut de Science des Matériaux de Mulhouse, UMR 7361, CNRS-Université de Haute-Alsace, 15, rue Jean Starcky, Mulhouse 68057, France.
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Sharma V, Köllmer M, Szymusiak M, Nitsche LC, Gemeinhart RA, Liu Y. Toroidal-spiral particles for codelivery of anti-VEGFR-2 antibody and irinotecan: a potential implant to hinder recurrence of glioblastoma multiforme. Biomacromolecules 2014; 15:756-62. [PMID: 24460101 PMCID: PMC3983134 DOI: 10.1021/bm401550r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 01/23/2014] [Indexed: 12/25/2022]
Abstract
Heterogeneous toroidal-spiral particles (TSPs) were generated by polymer droplet sedimentation, interaction, and cross-linking. TSPs provide a platform for encapsulation and release of multiple compounds of different sizes and physicochemical properties. As a model system, we demonstrate the encapsulation and independently controlled release of an anti-VEGFR-2 antibody and irinotecan for the treatment of glioblastoma multiforme. The anti-VEGFR-2 antibody was released from the TS channels and its binding to HUVECs was confirmed by confocal microscopy and flow cytometry, suggesting active antibody encapsulation and release. Irinotecan, a small molecule drug, was released from the dense polymer matrix of poly(ethylene glycol) diacrylate (MW ~ 700 g/mol; PEGDA 700). Released irinotecan inhibited the proliferation of U251 malignant glioma cells. Since the therapeutic compounds are released through different pathways, specifically diffusion through the polymer matrix versus TS channels, the release rate can be controlled independently through the design of the structure and material of particle components.
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Affiliation(s)
- Vishal Sharma
- Department of Chemical Engineering and Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Melanie Köllmer
- Department of Biopharmaceutical Sciences and Department of Ophthalmology and Visual
Sciences, University of Illinois, Chicago, Illinois 60612, United States
| | - Magdalena Szymusiak
- Department of Chemical Engineering and Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Ludwig C. Nitsche
- Department of Chemical Engineering and Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Richard A. Gemeinhart
- Department of Chemical Engineering and Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
- Department of Biopharmaceutical Sciences and Department of Ophthalmology and Visual
Sciences, University of Illinois, Chicago, Illinois 60612, United States
| | - Ying Liu
- Department of Chemical Engineering and Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
- Department of Biopharmaceutical Sciences and Department of Ophthalmology and Visual
Sciences, University of Illinois, Chicago, Illinois 60612, United States
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