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Ashimova A, Myngbay A, Yegorov S, Negmetzhanov B, Kadyrova I, Yershova A, Kart U, Miller MS, Hortelano G. Sustained Delivery of a Monoclonal Antibody against SARS-CoV-2 by Microencapsulated Cells: A Proof-of-Concept Study. Pharmaceutics 2022; 14:2042. [PMID: 36297477 PMCID: PMC9607555 DOI: 10.3390/pharmaceutics14102042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/14/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Monoclonal antibody (mAb) therapy is a promising antiviral intervention for Coronovirus disease (COVID-19) with a potential for both treatment and prophylaxis. However, a major barrier to implementing mAb therapies in clinical practice is the intricate nature of mAb preparation and delivery. Therefore, here, in a pre-clinical model, we explored the possibility of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mAb delivery using a mAb-expressing encapsulated cell system. METHODS Murine G-8 myoblasts were transfected with plasmids coding for the heavy and light chains of CR3022, a well-characterized SARS-CoV-2 mAb that targets the Spike receptor binding domain (RBD), and then encapsulated into alginate microcapsules. The microcapsules were then intraperitoneally implanted into immunocompetent (C57/BL6J) mice and changes in circulating CR3022 titres were assessed. The in vitro and ex vivo characterization of the mAb was performed using western blotting, RBD ELISA, and microscopy. RESULTS Transfected G-8 myoblasts expressed intact CR3022 IgG at levels comparable to transfected HEK-293 cells. Cell encapsulation yielded microcapsules harbouring approximately 1000 cells/capsule and sustainably secreting CR3022 mAb. Subsequent peritoneal G-8 microcapsule implantation into mice resulted in a gradual increase of CR3022 concentration in blood, which by day 7 peaked at 1923 [1656-2190] ng/mL and then gradually decreased ~4-fold by day 40 post-implantation. Concurrently, we detected an increase in mouse anti-CR3022 IgG titers, while microcapsules recovered by day 40 post-implantation showed a reduced per-microcapsule mAb production. SUMMARY We demonstrate here that cell microencapsulation is a viable approach to systemic delivery of intact SARS-CoV-2 mAb, with potential therapeutic applications that warrant further exploration.
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Affiliation(s)
- Assem Ashimova
- School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
- Centre for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
| | - Askhat Myngbay
- School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
| | - Sergey Yegorov
- School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster Immunology Research Centre, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4L8, Canada
| | - Baurzhan Negmetzhanov
- School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
- Centre for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
| | - Irina Kadyrova
- Research Centre, Karaganda Medical University, 40 Gogol St, Karaganda 100008, Kazakhstan
| | - Angelina Yershova
- School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
- Faculty of Biological Sciences, Friedrich-Shiller-University Jena, Fürstengraben 1, 07743 Jena, Germany
| | - Ulpan Kart
- School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
| | - Matthew S. Miller
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster Immunology Research Centre, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4L8, Canada
| | - Gonzalo Hortelano
- School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Kazakhstan
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Viability and Functionality of Neonatal Porcine Islet-like Cell Clusters Bioprinted in Alginate-Based Bioinks. Biomedicines 2022; 10:biomedicines10061420. [PMID: 35740440 PMCID: PMC9220255 DOI: 10.3390/biomedicines10061420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 11/17/2022] Open
Abstract
The transplantation of pancreatic islets can prevent severe long-term complications in diabetes mellitus type 1 patients. With respect to a shortage of donor organs, the transplantation of xenogeneic islets is highly attractive. To avoid rejection, islets can be encapsulated in immuno-protective hydrogel-macrocapsules, whereby 3D bioprinted structures with macropores allow for a high surface-to-volume ratio and reduced diffusion distances. In the present study, we applied 3D bioprinting to encapsulate the potentially clinically applicable neonatal porcine islet-like cell clusters (NICC) in alginate-methylcellulose. The material was additionally supplemented with bovine serum albumin or the human blood plasma derivatives platelet lysate and fresh frozen plasma. NICC were analysed for viability, proliferation, the presence of hormones, and the release of insulin in reaction to glucose stimulation. Bioprinted NICC are homogeneously distributed, remain morphologically intact, and show a comparable viability and proliferation to control NICC. The number of insulin-positive cells is comparable between the groups and over time. The amount of insulin release increases over time and is released in response to glucose stimulation over 4 weeks. In summary, we show the successful bioprinting of NICC and could demonstrate functionality over the long-term in vitro. Supplementation resulted in a trend for higher viability, but no additional benefit on functionality was observed.
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Jiao W, Li X, Shan J, Wang X. Study of Several Alginate-Based Hydrogels for In Vitro 3D Cell Cultures. Gels 2022; 8:gels8030147. [PMID: 35323260 PMCID: PMC8950797 DOI: 10.3390/gels8030147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 12/04/2022] Open
Abstract
Hydrogel, a special system of polymer solutions, can be obtained through the physical/chemical/enzymic crosslinking of polymer chains in a water-based dispersion medium. Different compositions and crosslinking methods endow hydrogel with diverse physicochemical properties. Those hydrogels with suitable physicochemical properties hold manifold functions in biomedical fields, such as cell transplantation, tissue engineering, organ manufacturing, drug releasing and pathological model analysis. In this study, several alginate-based composite hydrogels, including gelatin/alginate (G-A), gelatin/alginate/agarose (G-A-A), fibrinogen/alginate (F-A), fibrinogen/alginate/agarose (F-A-A) and control alginate (A) and alginate/agarose (A-A), were constructed. We researched the advantages and disadvantages of these hydrogels in terms of their microscopic structure (cell living space), water holding capacity, swelling rate, swelling–erosion ratio, mechanical properties and biocompatibility. Briefly, alginate-based hydrogels can be used for three-dimensional (3D) cell culture alone. However, when mixed with other natural polymers in different proportions, a relatively stable network with a good cytocompatibility, mechanical strength and water holding capacity can be formed. The physical and chemical properties of the hydrogels can be adjusted by changing the composition, proportion and cross-linking methods of the polymers. Conclusively, the G-A-A and F-A-A hydrogels are the best hydrogels for the in vitro 3D cell cultures and pathological model construction.
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Affiliation(s)
- Weijie Jiao
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), Shenyang 110122, China; (W.J.); (X.L.); (J.S.)
| | - Xiaohong Li
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), Shenyang 110122, China; (W.J.); (X.L.); (J.S.)
| | - Jingxin Shan
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), Shenyang 110122, China; (W.J.); (X.L.); (J.S.)
- Department of Biomedical Engineering, HE University, Shenyang 110163, China
| | - Xiaohong Wang
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), Shenyang 110122, China; (W.J.); (X.L.); (J.S.)
- Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
- Correspondence: or ; Tel.: +86-24-3190-0983
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Safarova Y, Umbayev B, Hortelano G, Askarova S. Mesenchymal stem cells modifications for enhanced bone targeting and bone regeneration. Regen Med 2020; 15:1579-1594. [PMID: 32297546 DOI: 10.2217/rme-2019-0081] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In pathological bone conditions (e.g., osteoporotic fractures or critical size bone defects), increasing the pool of osteoblast progenitor cells is a promising therapeutic approach to facilitate bone healing. Since mesenchymal stem cells (MSCs) give rise to the osteogenic lineage, a number of clinical trials investigated the potential of MSCs transplantation for bone regeneration. However, the engraftment of transplanted cells is often hindered by insufficient oxygen and nutrients supply and the tendency of MSCs to home to different sites of the body. In this review, we discuss various approaches of MSCs transplantation for bone regeneration including scaffold and hydrogel constructs, genetic modifications and surface engineering of the cell membrane aimed to improve homing and increase cell viability, proliferation and differentiation.
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Affiliation(s)
- Yuliya Safarova
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.,School of Engineering & Digital Sciences, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Bauyrzhan Umbayev
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Gonzalo Hortelano
- School of Sciences & Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Sholpan Askarova
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
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Ashimova A, Yegorov S, Negmetzhanov B, Hortelano G. Cell Encapsulation Within Alginate Microcapsules: Immunological Challenges and Outlook. Front Bioeng Biotechnol 2019; 7:380. [PMID: 31850335 PMCID: PMC6901392 DOI: 10.3389/fbioe.2019.00380] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/15/2019] [Indexed: 12/29/2022] Open
Abstract
Cell encapsulation is a bioengineering technology that provides live allogeneic or xenogeneic cells packaged in a semipermeable immune-isolating membrane for therapeutic applications. The concept of cell encapsulation was first proposed almost nine decades ago, however, and despite its potential, the technology has yet to deliver its promise. The few clinical trials based on cell encapsulation have not led to any licensed therapies. Progress in the field has been slow, in part due to the complexity of the technology, but also because of the difficulties encountered when trying to prevent the immune responses generated by the various microcapsule components, namely the polymer, the encapsulated cells, the therapeutic transgenes and the DNA vectors used to genetically engineer encapsulated cells. While the immune responses induced by polymers such as alginate can be minimized using highly purified materials, the need to cope with the immunogenicity of encapsulated cells is increasingly seen as key in preventing the immune rejection of microcapsules. The encapsulated cells are recognized by the host immune cells through a bidirectional exchange of immune mediators, which induce both the adaptive and innate immune responses against the engrafted capsules. The potential strategies to cope with the immunogenicity of encapsulated cells include the selective diffusion restriction of immune mediators through capsule pores and more recently inclusion in microcapsules of immune modulators such as CXCL12. Combining these strategies with the use of well-characterized cell lines harboring the immunomodulatory properties of stem cells should encourage the incorporation of cell encapsulation technology in state-of-the-art drug development.
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Affiliation(s)
- Assem Ashimova
- Department of Biology, School of Science and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Sergey Yegorov
- Department of Biology, School of Science and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
- Department of Pedagogical Mathematics and Natural Science, Faculty of Education and Humanities, Suleyman Demirel University, Almaty, Kazakhstan
| | - Baurzhan Negmetzhanov
- Department of Biology, School of Science and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
- National Laboratory Astana, Center for Life Sciences, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Gonzalo Hortelano
- Department of Biology, School of Science and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
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Lee JK, Choi IS, Oh TI, Lee E. Cell-Surface Engineering for Advanced Cell Therapy. Chemistry 2018; 24:15725-15743. [PMID: 29791047 DOI: 10.1002/chem.201801710] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/22/2018] [Indexed: 12/16/2022]
Abstract
Stem cells opened great opportunity to overcome diseases that conventional therapy had only limited success. Use of scaffolds made from biomaterials not only helps handling of stem cells for delivery or transplantation but also supports enhanced cell survival. Likewise, cell encapsulation can provide stability for living animal cells even in a state of separateness. Although various chemical reactions were tried to encapsulate stolid microbial cells such as yeasts, a culture environment for the growth of animal cells allows only highly biocompatible reactions. Therefore, the animal cells were mostly encapsulated in hydrogels, which resulted in enhanced cell survival. Interestingly, major findings of chemistry on biological interfaces demonstrate that cell encapsulation in hydrogels have a further a competence for modulating cell characteristics that can go beyond just enhancing the cell survival. In this review, we present a comprehensive overview on the chemical reactions applied to hydrogel-based cell encapsulation and their effects on the characteristics and behavior of living animal cells.
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Affiliation(s)
- Jungkyu K Lee
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Korea
| | - Insung S Choi
- Department of Chemistry and Center for Cell-Encapsulation Research, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Tong In Oh
- Department of Biomedical Engineering, Kyung Hee University, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea
| | - EunAh Lee
- Impedance Imaging Research Center (IIRC), Kyung Hee University, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea
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Cagol N, Bonani W, Maniglio D, Migliaresi C, Motta A. Effect of Cryopreservation on Cell-Laden Hydrogels: Comparison of Different Cryoprotectants. Tissue Eng Part C Methods 2018; 24:20-31. [DOI: 10.1089/ten.tec.2017.0258] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Nicola Cagol
- Department of Industrial Engineering, Biotech Research Center, University of Trento, Trento, Italy
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Trento, Italy
| | - Walter Bonani
- Department of Industrial Engineering, Biotech Research Center, University of Trento, Trento, Italy
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Trento, Italy
| | - Devid Maniglio
- Department of Industrial Engineering, Biotech Research Center, University of Trento, Trento, Italy
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Trento, Italy
| | - Claudio Migliaresi
- Department of Industrial Engineering, Biotech Research Center, University of Trento, Trento, Italy
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Trento, Italy
| | - Antonella Motta
- Department of Industrial Engineering, Biotech Research Center, University of Trento, Trento, Italy
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Trento, Italy
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Li SJ, Luo Y, Zhang LM, Yang W, Zhang GG. Targeted introduction and effective expression of hFIX at the AAVS1 locus in mesenchymal stem cells. Mol Med Rep 2017; 15:1313-1318. [PMID: 28112377 PMCID: PMC5367337 DOI: 10.3892/mmr.2017.6131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 12/12/2016] [Indexed: 01/13/2023] Open
Abstract
Hemophilia B occurs due to a deficiency in human blood coagulation factor IX (hFIX). Currently, no effective treatment for hemophilia B has been identified, and gene therapy has been considered the most appropriate treatment. Mesenchymal stem cells (MSCs) have homing abilities and low immunogenicity, and therefore they may be potential cell carriers for targeted drug delivery to lesional tissues. The present study constructed an adeno‑associated virus integration site 1 (AAVS1)‑targeted vector termed AAVS1‑green fluorescent protein (GFP)‑hFIX and a zinc finger nuclease (ZFN) expression vector. Nucleofection was used to co‑transfect the targeting vector and the ZFN expression vector into human MSCs. The GFP‑positive cells were selected using flow cytometry. Site‑specific integration clones were obtained following the monoclonal culture, subsequent detections were performed using polymerase chain reaction and Southern blotting. Following the confirmation of stem cell traits of the site‑specific integration MSCs, the in vivo and in vitro expression levels of hFIX were detected. The results demonstrated that the hFIX gene was successfully transfected into the AAVS1 locus in human MSCs. The clones with the site‑specific integration retained stem cell traits of the MSCs. In addition, hFIX was effectively expressed in vivo and in vitro. No significant differences in expression levels were identified among the individual clones. In conclusion, the present study demonstrated that the exogenous gene hFIX was effectively expressed following site‑specific targeting into the AAVS1 locus in MSCs; therefore, MSCs may be used as potential cell carriers for gene therapy of hemophilia B.
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Affiliation(s)
- Shu-Jun Li
- Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Ying Luo
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Le-Meng Zhang
- Department of Thoracic Medicine, Hunan Cancer Hospital Affiliated to Xiangya Medical School, Central South University, Changsha, Hunan 410013, P.R. China
| | - Wei Yang
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China
| | - Guo-Gang Zhang
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China
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Nowakowski A, Walczak P, Janowski M, Lukomska B. Genetic Engineering of Mesenchymal Stem Cells for Regenerative Medicine. Stem Cells Dev 2015; 24:2219-42. [PMID: 26140302 DOI: 10.1089/scd.2015.0062] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs), which can be obtained from various organs and easily propagated in vitro, are one of the most extensively used types of stem cells and have been shown to be efficacious in a broad set of diseases. The unique and highly desirable properties of MSCs include high migratory capacities toward injured areas, immunomodulatory features, and the natural ability to differentiate into connective tissue phenotypes. These phenotypes include bone and cartilage, and these properties predispose MSCs to be therapeutically useful. In addition, MSCs elicit their therapeutic effects by paracrine actions, in which the metabolism of target tissues is modulated. Genetic engineering methods can greatly amplify these properties and broaden the therapeutic capabilities of MSCs, including transdifferentiation toward diverse cell lineages. However, cell engineering can also affect safety and increase the cost of therapy based on MSCs; thus, the advantages and disadvantages of these procedures should be discussed. In this review, the latest applications of genetic engineering methods for MSCs with regenerative medicine purposes are presented.
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Affiliation(s)
- Adam Nowakowski
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland
| | - Piotr Walczak
- 2 Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,4 Department of Radiology, Faculty of Medical Sciences, University of Warmia and Mazury , Olsztyn, Poland
| | - Miroslaw Janowski
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland .,2 Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Barbara Lukomska
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland
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Mesenchymal stromal cells derived from various tissues: Biological, clinical and cryopreservation aspects. Cryobiology 2015; 71:181-97. [PMID: 26186998 DOI: 10.1016/j.cryobiol.2015.07.003] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 07/13/2015] [Indexed: 12/11/2022]
Abstract
Originally isolated from bone marrow, mesenchymal stromal cells (MSCs) have since been obtained from various fetal and post-natal tissues and are the focus of an increasing number of clinical trials. Because of their tremendous potential for cellular therapy, regenerative medicine and tissue engineering, it is desirable to cryopreserve and bank MSCs to increase their access and availability. A remarkable amount of research and resources have been expended towards optimizing the protocols, freezing media composition, cooling devices and storage containers, as well as developing good manufacturing practices in order to ensure that MSCs retain their therapeutic characteristics following cryopreservation and that they are safe for clinical use. Here, we first present an overview of the identification of MSCs, their tissue sources and the properties that render them suitable as a cellular therapeutic. Next, we discuss the responses of cells during freezing and focus on the traditional and novel approaches used to cryopreserve MSCs. We conclude that viable MSCs from diverse tissues can be recovered after cryopreservation using a variety of freezing protocols, cryoprotectants, storage periods and temperatures. However, alterations in certain functions of MSCs following cryopreservation warrant future investigations on the recovery of cells post-thaw followed by expansion of functional cells in order to achieve their full therapeutic potential.
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Garate A, Santos E, Pedraz JL, Hernández RM, Orive G. Evaluation of different RGD ligand densities in the development of cell-based drug delivery systems. J Drug Target 2015; 23:806-12. [DOI: 10.3109/1061186x.2015.1020428] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Stem cell-based therapeutic strategies have emerged as very attractive treatment options over the past decade. Stem cells are now being utilized as delivery vehicles especially in cancer therapy to deliver a number of targeted proteins and viruses. This chapter aims to shed light on numerous studies that have successfully employed these strategies to target various cancer types with a special emphasis on numerous aspects that are critical to the success of future stem cell-based therapies for cancer.
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Abstract
Hemophilia is an X-linked inherited bleeding disorder consisting of two classifications, hemophilia A and hemophilia B, depending on the underlying mutation. Although the disease is currently treatable with intravenous delivery of replacement recombinant clotting factor, this approach represents a significant cost both monetarily and in terms of quality of life. Gene therapy is an attractive alternative approach to the treatment of hemophilia that would ideally provide life-long correction of clotting activity with a single injection. In this review, we will discuss the multitude of approaches that have been explored for the treatment of both hemophilia A and B, including both in vivo and ex vivo approaches with viral and nonviral delivery vectors.
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Affiliation(s)
- Geoffrey L Rogers
- University of Florida, Department of Pediatrics, Division of Cellular and Molecular Therapy, Gainesville, FL 32610
| | - Roland W Herzog
- University of Florida, Department of Pediatrics, Division of Cellular and Molecular Therapy, Gainesville, FL 32610
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Ho CL, Hwang IY, Loh K, Chang MW. Matrix-immobilized yeast for large-scale production of recombinant human lactoferrin. MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00537f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An improved method of recombinant human lactoferrin (hLF) expression in rich culture medium is demonstrated using macroporous microencapsulation.
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Affiliation(s)
- Chun Loong Ho
- Department of Biochemistry
- Yong Loo Lin School of Medicine
- and Synthetic Biology Research Program
- Life Sciences Institute
- National University of Singapore
| | - In Young Hwang
- Department of Biochemistry
- Yong Loo Lin School of Medicine
- and Synthetic Biology Research Program
- Life Sciences Institute
- National University of Singapore
| | - Kathy Loh
- Department of Biochemistry
- Yong Loo Lin School of Medicine
- and Synthetic Biology Research Program
- Life Sciences Institute
- National University of Singapore
| | - Matthew Wook Chang
- Department of Biochemistry
- Yong Loo Lin School of Medicine
- and Synthetic Biology Research Program
- Life Sciences Institute
- National University of Singapore
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15
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Dodd M, Marquez-Curtis L, Janowska-Wieczorek A, Hortelano G. Sustained expression of coagulation factor IX by modified cord blood-derived mesenchymal stromal cells. J Gene Med 2014; 16:131-42. [DOI: 10.1002/jgm.2769] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 06/12/2014] [Accepted: 06/16/2014] [Indexed: 01/07/2023] Open
Affiliation(s)
- Megan Dodd
- School of Biomedical Engineering; McMaster University; Hamilton ON Canada
- Department of Biomedical Engineering; Jimma Institute of Technology; Jimma Ethiopia
| | - Leah Marquez-Curtis
- Centre for Innovation (formerly Research and Development); Canadian Blood Services; Edmonton AB Canada
| | - Anna Janowska-Wieczorek
- Centre for Innovation (formerly Research and Development); Canadian Blood Services; Edmonton AB Canada
- Department of Medicine; University of Alberta; Edmonton AB Canada
| | - Gonzalo Hortelano
- School of Biomedical Engineering; McMaster University; Hamilton ON Canada
- Department of Pathology & Molecular Medicine; McMaster University; Hamilton ON Canada
- Department of Biology & Chemistry, School of Science and Technology; Nazarbayev University; Astana Republic of Kazakhstan
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Attia N, Santos E, Abdelmouty H, Arafa S, Zohdy N, Hernández RM, Orive G, Pedraz JL. Behaviour and ultrastructure of human bone marrow-derived mesenchymal stem cells immobilised in alginate-poly-l-lysine-alginate microcapsules. J Microencapsul 2014; 31:579-89. [PMID: 24766209 DOI: 10.3109/02652048.2014.898706] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
CONTEXT Human bone marrow mesenchymal stem cells (hBM-MSCs) show a great promise for the treatment of a variety of diseases. Despite the previous trials to encapsulate hBM-MSCs in alginate-poly-l-lysine-alginate (APA) systems, the various changes that follow immobilisation have not been ascertained yet. OBJECTIVE Determine the various consequences derived from entrapment on cell behaviour, putting special emphasis on the ultrastructure. METHODS hBM-MSCs were immobilised in APA microcapsules to further characterise their viability, metabolic activity, proliferation, VEGF-secretability, and morphology. RESULTS The VEGF produced by monolayer hBM-MSCs increased significantly 1 d post-encapsulation, and was maintained for at least 4 weeks. TEM imaging of cells revealed well preserved ultrastructure indicating protein synthesis and high metabolic activity. CONCLUSION Although APA microencapsulation did not support 100% of fully viable hBM-MSCs for long-term cultures, it was conceived to enhance both VEGF secretion and metabolic activity while not losing their stemness characteristics.
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Affiliation(s)
- Noha Attia
- Department of Histology and Cell Biology, Faculty of Medicine, Alexandria University , Alexandria , Egypt
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Santos E, Garate A, Pedraz JL, Orive G, Hernández RM. The synergistic effects of the RGD density and the microenvironment on the behavior of encapsulated cells:In vitroandin vivodirect comparative study. J Biomed Mater Res A 2014; 102:3965-72. [DOI: 10.1002/jbm.a.35073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 12/12/2013] [Accepted: 12/19/2013] [Indexed: 12/20/2022]
Affiliation(s)
- Edorta Santos
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - Ane Garate
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - José Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - Rosa María Hernández
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
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Kingsley DM, Dias AD, Chrisey DB, Corr DT. Single-step laser-based fabrication and patterning of cell-encapsulated alginate microbeads. Biofabrication 2013; 5:045006. [PMID: 24192221 PMCID: PMC3890439 DOI: 10.1088/1758-5082/5/4/045006] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Alginate can be used to encapsulate mammalian cells and for the slow release of small molecules. Packaging alginate as microbead structures allows customizable delivery for tissue engineering, drug release, or contrast agents for imaging. However, state-of-the-art microbead fabrication has a limited range in achievable bead sizes, and poor control over bead placement, which may be desired to localize cellular signaling or delivery. Herein, we present a novel, laser-based method for single-step fabrication and precise planar placement of alginate microbeads. Our results show that bead size is controllable within 8%, and fabricated microbeads can remain immobilized within 2% of their target placement. Demonstration of this technique using human breast cancer cells shows that cells encapsulated within these microbeads survive at a rate of 89.6%, decreasing to 84.3% after five days in culture. Infusing rhodamine dye into microbeads prior to fluorescent microscopy shows their 3D spheroidal geometry and the ability to sequester small molecules. Microbead fabrication and patterning is compatible with conventional cellular transfer and patterning by laser direct-write, allowing location-based cellular studies. While this method can also be used to fabricate microbeads en masse for collection, the greatest value to tissue engineering and drug delivery studies and applications lies in the pattern registry of printed microbeads.
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Affiliation(s)
- DM Kingsley
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 Eighth St., Troy, NY 12180, USA
| | - AD Dias
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 Eighth St., Troy, NY 12180, USA
| | - DB Chrisey
- Department of Physics, Tulane University, 6823 St. Charles Avenue New Orleans, LA 70118, USA
| | - DT Corr
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 Eighth St., Troy, NY 12180, USA
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Perez RA, Kim M, Kim TH, Kim JH, Lee JH, Park JH, Knowles JC, Kim HW. Utilizing core-shell fibrous collagen-alginate hydrogel cell delivery system for bone tissue engineering. Tissue Eng Part A 2013; 20:103-14. [PMID: 23924353 DOI: 10.1089/ten.tea.2013.0198] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Three-dimensional matrices that encapsulate and deliver stem cells with defect-tuned formulations are promising for bone tissue engineering. In this study, we designed a novel stem cell delivery system composed of collagen and alginate as the core and shell, respectively. Mesenchymal stem cells (MSCs) were loaded into the collagen solution and then deposited directly into a fibrous structure while simultaneously sheathing with alginate using a newly designed core-shell nozzle. Alginate encapsulation was achieved by the crosslinking within an adjusted calcium-containing solution that effectively preserved the continuous fibrous structure of the inner cell-collagen part. The constructed hydrogel carriers showed a continuous fiber with a diameter of ~700-1000 μm for the core and 200-500 μm for the shell area, which was largely dependent on the alginate concentration (2%-5%) as well as the injection rate (20-80 mL/h). The water uptake capacity of the core-shell carriers was as high as 98%, which could act as a pore channel to supply nutrients and oxygen to the cells. Degradation of the scaffolds showed a weight loss of ~22% at 7 days and ~43% at 14 days, suggesting a possible role as a degradable tissue-engineered construct. The MSCs encapsulated within the collagen core showed excellent viability, exhibiting significant cellular proliferation up to 21 days with levels comparable to those observed in the pure collagen gel matrix used as a control. A live/dead cell assay also confirmed similar percentages of live cells within the core-shell carrier compared to those in the pure collagen gel, suggesting the carrier was cell compatible and was effective for maintaining a cell population. Cells allowed to differentiate under osteogenic conditions expressed high levels of bone-related genes, including osteocalcin, bone sialoprotein, and osteopontin. Further, when the core-shell fibrous carriers were implanted in a rat calvarium defect, the bone healing was significantly improved when the MSCs were encapsulated, and even more so after an osteogenic induction of MSCs before implantation. Based on these results, the newly designed core-shell collagen-alginate fibrous carrier is considered promising to enable the encapsulation of tissue cells and their delivery into damaged target tissues, including bone with defect-tunability for bone tissue engineering.
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Affiliation(s)
- Roman A Perez
- 1 Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan, South Korea
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Abstract
Stem cells have inherent tumor‑trophic migratory properties and can serve as vehicles for delivering effective, targeted therapy to isolated tumors and metastatic disease, making them promising anti‑cancer agents. Encapsulation of therapeutically engineered stem cells in hydrogels has been utilized to provide a physical barrier to protect the cells from hostile extrinsic factors and significantly improve the therapeutic efficacy of transplanted stem cells in different models of cancer. This review aims to discuss the potential of different stem cell types for cancer therapy, various engineered stem cell based therapies for cancer, stem cell encapsulation process and provide an in depth overview of current applications of therapeutic stem cell encapsulation in the highly malignant brain tumor, glioblastoma multiforme (GBM), as well as the prospects for their clinical translation.
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Affiliation(s)
- Khalid Shah
- Molecular Neurotherapy and Imaging Laboratory; Massachusetts General Hospital; Harvard Medical School; Boston, MA USA; Department of Radiology; Massachusetts General Hospital; Harvard Medical School; Boston, MA USA; Department of Neurology; Massachusetts General Hospital; Harvard Medical School; Boston, MA USA; Harvard Stem Cell Institute; Harvard University; Cambridge, MA USA
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