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Schumacher M, Habibović P, van Rijt S. Peptide-Modified Nano-Bioactive Glass for Targeted Immobilization of Native VEGF. ACS APPLIED MATERIALS & INTERFACES 2022; 14:4959-4968. [PMID: 35041377 PMCID: PMC8815037 DOI: 10.1021/acsami.1c21378] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A limiting factor in large bone defect regeneration is the slow and disorganized formation of a functional vascular network in the defect area, often resulting in delayed healing or implant failure. To overcome this, strategies that induce angiogenic processes should be combined with potent bone graft substitutes in new bone regeneration approaches. To this end, we describe a unique approach to immobilize the pro-angiogenic growth factor VEGF165 in its native state on the surface of nanosized bioactive glass particles (nBGs) via a binding peptide (PR1P). We demonstrate that covalent coupling of the peptide to amine functional groups grafted on the nBG surface allows immobilization of VEGF with high efficiency and specificity. The amount of coupled peptide could be controlled by varying amine density, which eventually allows tailoring the amount of bound VEGF within a physiologically effective range. In vitro analysis of endothelial cell tube formation in response to VEGF-carrying nBG confirmed that the biological activity of VEGF is not compromised by the immobilization. Instead, comparable angiogenic stimulation was found for lower doses of immobilized VEGF compared to exogenously added VEGF. The described system, for the first time, employs a binding peptide for growth factor immobilization on bioactive glass nanoparticles and represents a promising strategy to overcome the problem of insufficient neovascularization in large bone defect regeneration.
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Noel S, Fortier C, Murschel F, Belzil A, Gaudet G, Jolicoeur M, De Crescenzo G. Co-immobilization of adhesive peptides and VEGF within a dextran-based coating for vascular applications. Acta Biomater 2016; 37:69-82. [PMID: 27039978 DOI: 10.1016/j.actbio.2016.03.043] [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: 11/11/2015] [Revised: 02/11/2016] [Accepted: 03/30/2016] [Indexed: 11/25/2022]
Abstract
UNLABELLED Multifunctional constructs providing a proper environment for adhesion and growth of selected cell types are needed for most tissue engineering and regenerative medicine applications. In this context, vinylsulfone (VS)-modified dextran was proposed as a matrix featuring low-fouling properties as well as multiple versatile moieties. The displayed VS groups could indeed react with thiol, amine or hydroxyl groups, be it for surface grafting, crosslinking or subsequent tethering of biomolecules. In the present study, a library of dextran-VS was produced, grafted to aminated substrates and characterized in terms of degree of VS modification (%VS), cell-repelling properties and potential for the oriented grafting of cysteine-tagged peptides. As a bioactive coating of vascular implants, ECM peptides (e.g. RGD) as well as vascular endothelial growth factor (VEGF) were co-immobilized on one of the most suitable dextran-VS coating (%VS=ca. 50% of saccharides units). Both RGD and VEGF were efficiently tethered at high densities (ca. 1nmol/cm(2) and 50fmol/cm(2), respectively), and were able to promote endothelial cell adhesion as well as proliferation. The latter was enhanced to the same extent as with soluble VEGF and proved selective to endothelial cells over smooth muscle cells. Altogether, multiple biomolecules could be efficiently incorporated into a dextran-VS construct, while maintaining their respective biological activity. STATEMENT OF SIGNIFICANCE This work addresses the need for multifunctional coatings and selective cell response inherent to many tissue engineering and regenerative medicine applications, for instance, vascular graft. More specifically, a library of dextrans was first generated through vinylsulfone (VS) modification. Thoroughly selected dextran-VS provided an ideal platform for unbiased study of cell response to covalently grafted biomolecules. Considering that processes such as healing and angiogenesis require multiple factors acting synergistically, vascular endothelial growth factor (VEGF) was then co-immobilized with the cell adhesive RGD peptide within our dextran coating through a relevant strategy featuring orientation and specificity. Altogether, both adhesive and proliferative cues could be incorporated into our construct with additive, if not synergetic, effects.
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Tallawi M, Rosellini E, Barbani N, Cascone MG, Rai R, Saint-Pierre G, Boccaccini AR. Strategies for the chemical and biological functionalization of scaffolds for cardiac tissue engineering: a review. J R Soc Interface 2015; 12:20150254. [PMID: 26109634 PMCID: PMC4528590 DOI: 10.1098/rsif.2015.0254] [Citation(s) in RCA: 192] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 05/19/2015] [Indexed: 12/11/2022] Open
Abstract
The development of biomaterials for cardiac tissue engineering (CTE) is challenging, primarily owing to the requirement of achieving a surface with favourable characteristics that enhances cell attachment and maturation. The biomaterial surface plays a crucial role as it forms the interface between the scaffold (or cardiac patch) and the cells. In the field of CTE, synthetic polymers (polyglycerol sebacate, polyethylene glycol, polyglycolic acid, poly-l-lactide, polyvinyl alcohol, polycaprolactone, polyurethanes and poly(N-isopropylacrylamide)) have been proven to exhibit suitable biodegradable and mechanical properties. Despite the fact that they show the required biocompatible behaviour, most synthetic polymers exhibit poor cell attachment capability. These synthetic polymers are mostly hydrophobic and lack cell recognition sites, limiting their application. Therefore, biofunctionalization of these biomaterials to enhance cell attachment and cell material interaction is being widely investigated. There are numerous approaches for functionalizing a material, which can be classified as mechanical, physical, chemical and biological. In this review, recent studies reported in the literature to functionalize scaffolds in the context of CTE, are discussed. Surface, morphological, chemical and biological modifications are introduced and the results of novel promising strategies and techniques are discussed.
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Affiliation(s)
- Marwa Tallawi
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Elisabetta Rosellini
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56126 Pisa, Italy
| | - Niccoletta Barbani
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56126 Pisa, Italy
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56126 Pisa, Italy
| | - Ranjana Rai
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Guillaume Saint-Pierre
- Inspiralia, Materials Laboratory, C/Faraday 7, Lab 3.02, Campus de Cantoblanco, Madrid 28049, Spain
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Chiu LLY, Weisel RD, Li RK, Radisic M. Defining conditions for covalent immobilization of angiogenic growth factors onto scaffolds for tissue engineering. J Tissue Eng Regen Med 2011; 5:69-84. [PMID: 20717888 DOI: 10.1002/term.292] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2009] [Accepted: 02/25/2010] [Indexed: 12/30/2022]
Abstract
Rapid vascularization of engineered tissues in vitro and in vivo remains one of the key limitations in tissue engineering. We propose that angiogenic growth factors covalently immobilized on scaffolds for tissue engineering can be used to accomplish this goal. The main objectives of this work were: (a) to derive desirable experimental conditions for the covalent immobilization of vascular endothelial growth factor (VEGF) and angiopoietin-1 (Ang1) on porous collagen scaffolds; and (b) to determine whether primary endothelial cells respond to these scaffolds with covalently immobilized angiogenic factors. VEGF and Ang1 were covalently immobilized onto porous collagen scaffolds, using 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) chemistry. To improve covalent immobilization conditions: (a) different reaction buffers [phosphate-buffered saline (PBS), distilled water, or 2-(N-morpholino)ethanesulphonic acid (MES)] were used; and (b) step immobilization was compared to bulk immobilization. In step immobilization, growth factors are applied after EDC activation of the scaffold, while in bulk immobilization, reagents are simultaneously applied to the scaffold. PBS as the reaction buffer resulted in higher amounts of VEGF and Ang1 immobilized (ELISA), higher cell proliferation rates (XTT) and increased lactate metabolism compared to water and MES as the reaction buffers. Step immobilization in PBS buffer was also more effective than bulk immobilization. Immobilized growth factors resulted in higher cell proliferation and lactate metabolism compared to soluble growth factors used at comparable concentrations. Tube formation by CD31-positive cells was also observed in collagen scaffolds with immobilized VEGF or Ang1 using H5V and primary rat aortic endothelial cells but not on control scaffolds.
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Affiliation(s)
- Loraine L Y Chiu
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Canada
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Edlund U, Sauter T, Albertsson AC. Covalent VEGF protein immobilization on resorbable polymeric surfaces. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1811] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chiu L, Radisic M, Vunjak-Novakovic G. Bioactive scaffolds for engineering vascularized cardiac tissues. Macromol Biosci 2010; 10:1286-301. [PMID: 20857391 PMCID: PMC3627738 DOI: 10.1002/mabi.201000202] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Functional vascularization is a key requirement for the development and function of most tissues, and most critically cardiac muscle. Rapid and irreversible loss of cardiomyocytes during cardiac infarction directly results from the lack of blood supply. Contractile cardiac grafts, engineered using cardiovascular cells in conjunction with biomaterial scaffolds, are an actively studied method for cardiac repair. In this article, we focus on biomaterial scaffolds designed to mediate the development and maturation of vascular networks, by immobilized growth factors. The interactive effects of multiple vasculogenic factors are discussed in the context of cardiac tissue engineering.
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Affiliation(s)
- Loraine Chiu
- University of Toronto, Department of Chemical Engineering and Applied Chemistry, 164 College Street, Room 407, Toronto, Ontario, Canada M5S 3G9
| | - Milica Radisic
- University of Toronto, Department of Chemical Engineering and Applied Chemistry, 164 College Street, Room 407, Toronto, Ontario, Canada M5S 3G9
| | - Gordana Vunjak-Novakovic
- Columbia University, Department of Biomedical Engineering, 622 west 168 Street, VC12=234, New York NY 10032, U.S.A
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Edlund U, Sauter T, Albertsson AC. Covalent VEGF protein immobilization on resorbable polymeric surfaces. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1772] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Christman KL, Vázquez-Dorbatt V, Schopf E, Kolodziej CM, Li RC, Broyer RM, Chen Y, Maynard HD. Nanoscale growth factor patterns by immobilization on a heparin-mimicking polymer. J Am Chem Soc 2008; 130:16585-91. [PMID: 19554729 PMCID: PMC3110987 DOI: 10.1021/ja803676r] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In this study, electrostatic interactions between sulfonate groups of an immobilized polymer and the heparin binding domains of growth factors important in cell signaling were exploited to nanopattern the proteins. Poly(sodium 4-styrenesulfonate-co-poly(ethylene glycol) methacrylate) (pSS-co-pPEGMA) was synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization using ethyl S-thiobenzoyl-2-thiopropionate as a chain transfer agent and 2,2'-azoisobutyronitrile (AIBN) as the initiator. The resulting polymer (1) was characterized by 1H NMR, GPC, FT-IR, and UV-vis and had a number average molecular weight (Mn) of 24,000 and a polydispersity index (PDI) of 1.17. The dithioester end group of 1 was reduced to the thiol, and the polymer was subsequently immobilized on a gold substrate. Binding of basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF) to the polymer via the heparin binding domains was then confirmed by surface plasmon resonance (SPR). The interactions were stable at physiological salt concentrations. Polymer 1 was cross-linked onto silicon wafers using an electron beam writer forming micro- and nanopatterns. Resolutions of 100 nm and arbitrary nanoscale features such as concentric circles and contiguous squares and triangles were achieved. Fluorescence microscopy confirmed that bFGF and VEGF were subsequently immobilized to the polymer micro- and nanopatterns.
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Affiliation(s)
- Karen L. Christman
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
| | - Vimary Vázquez-Dorbatt
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
| | - Eric Schopf
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
| | - Christopher M. Kolodziej
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
| | - Ronald C. Li
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
| | - Rebecca M. Broyer
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
| | - Yong Chen
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
| | - Heather D. Maynard
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
- California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095-1569
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Nishi M, Kobayashi J, Pechmann S, Yamato M, Akiyama Y, Kikuchi A, Uchida K, Textor M, Yajima H, Okano T. The use of biotin–avidin binding to facilitate biomodification of thermoresponsive culture surfaces. Biomaterials 2007; 28:5471-6. [PMID: 17869335 DOI: 10.1016/j.biomaterials.2007.08.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Accepted: 08/19/2007] [Indexed: 11/30/2022]
Abstract
Here, we report biomodification of temperature-responsive culture surfaces with biotinylated biomolecules utilizing streptavidin and biotinylation of the surfaces. Poly(N-isopropylacrylamide-co-2-carboxyisopropylacrylamide) was covalently grafted onto tissue culture polystyrene (TCPS) dishes. Biotinylated Arg-Gly-Asp-Ser (RGDS) peptides with different spacer lengths (biotin-conjugated G(n)RGDS (n=1,6,12,16)) were examined. Human umbilical vein endothelial cells (HUVECs) adhered and were well spread on G(12)RGDS-immobilized surfaces in the absence of serum at 37 degrees C, while much less cell adhesion was observed with the other peptides. Adhered HUVECs were detached on reducing temperature to 20 degrees C, or on adding free RGDS peptide. Interestingly, cell detachment was accelerated by applying both these techniques. Consequently, by optimizing the spacer length, biomolecules can be functionally immobilized onto thermoresponsive surfaces via the affinity binding between avidin and biotin.
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Affiliation(s)
- Masanori Nishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo, Japan
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Ito Y, Hasuda H, Terai H, Kitajima T. Culture of human umbilical vein endothelial cells on immobilized vascular endothelial growth factor. J Biomed Mater Res A 2005; 74:659-65. [PMID: 16035066 DOI: 10.1002/jbm.a.30360] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Vascular endothelial growth factor (VEGF) was immobilized on substrata in photoreactive gelatin to control the adhesion and growth of vascular endothelial cells. The gelatin and VEGF were mixed in water and cast on a polystyrene dish or a silane-coated glass plate. The surface was then photoirradiated in the presence or absence of a photomask and washed. Toughness of the immobilized material was confirmed by ethanol treatment. Human umbilical vein endothelial cells (HUVECs) grew on the immobilized VEGF but not on a nontreated surface. Growth of HUVEC increased significantly with an increase in the amount of immobilized VEGF, and the effects were inhibited by treatment with anti-VEGF antibody. Thus, immobilized VEGF specifically interacted with HUVECs to permit growth in culture. Micropatterning of HUVEC cultures was also achieved using micropattern-immobilized VEGF. This patterning technique may be useful for the formation of blood vessel networks in vitro.
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Affiliation(s)
- Yoshihiro Ito
- Kanagawa Academy of Science and Technology, KSP East 309, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan.
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Ito Y, Hasuda H, Yamauchi T, Komatsu N, Ikebuchi K. Immobilization of erythropoietin to culture erythropoietin-dependent human leukemia cell line. Biomaterials 2004; 25:2293-8. [PMID: 14741594 DOI: 10.1016/j.biomaterials.2003.09.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
To investigate the effect of immobilized cytokine, erythropoietin (Epo) was immobilized on a culture plate and the Epo-dependent human leukemia cell line UT-7/Epo then was cultured upon the plate. A photo-reactive gelatin was mixed with Epo and the mixture was cast on a plate. The plate was then irradiated with ultraviolet light in the presence or absence of a photo-mask. After washing with water, a micropatterned or unpatterned surface was formed. A leukemia cell line dependent on Epo, UT-7/Epo, was cultured on the sample plate. On the micropatterned surface, apoptosis of cells was induced on the surface without Epo, but was not observed on the Epo-immobilized surface. This result demonstrated that Epo stimulated the cells even after immobilization. Although the activity of immobilized Epo was low, the activity was slightly higher than that achieved by soluble Epo at higher concentration. In addition, the immobilized Epo could be repeatedly used for culture of UT-7/Epo cell. The present study provided a convenient immobilization method and indicated that immobilization of cytokines will be useful for creating an artificial cell culture device.
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Affiliation(s)
- Yoshihiro Ito
- Kanagawa Academy of Science and Technology, Regenerative Medical Bioreactor Project, 3-2-1 Sakado, Takatsu-ku, Kawasaki 213-0012, Japan.
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Makino H, Hasuda H, Ito Y. Immobilization of leukemia inhibitory factor (LIF) to culture murine embryonic stem cells. J Biosci Bioeng 2004; 98:374-9. [PMID: 16233722 DOI: 10.1016/s1389-1723(04)00298-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2004] [Accepted: 08/30/2004] [Indexed: 11/25/2022]
Abstract
Murine embryonic stem (ES) cells were cultured on a material containing immobilized leukemia inhibitory factor (LIF). To immobilize LIF, we synthesized photoreactive gelatin mixed with LIF and cast the mixture on a polystyrene plate, which was then dried. LIF was immobilized by photoirradiation in the presence or absence of a photo mask. The plate was washed until LIF was no longer released. Murine ES cells were cultured on the immobilized LIF. Activation of STAT3 was maintained on the immobilized LIF for 6 d even after removing soluble LIF. Oct-3/4 was also expressed in the cells cultured on the immobilized LIF. As a result, the mouse ES cells were cultured without differentiating on the immobilized LIF for 6 d. It was possible to culture murine ES cells without adding soluble LIF at each medium change. We conclude that our material containing immobilized LIF might be useful in the culture of murine ES cells.
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Affiliation(s)
- Hiroshi Makino
- Kanagawa Academy of Science and Technology, KSP East 309, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa 213-0012, Japan
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