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de La Bourdonnaye G, Ghazalova T, Fojtik P, Kutalkova K, Bednar D, Damborsky J, Rotrekl V, Stepankova V, Chaloupkova R. Computer-aided engineering of stabilized fibroblast growth factor 21. Comput Struct Biotechnol J 2024; 23:942-951. [PMID: 38379823 PMCID: PMC10877085 DOI: 10.1016/j.csbj.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/03/2024] [Accepted: 02/03/2024] [Indexed: 02/22/2024] Open
Abstract
FGF21 is an endocrine signaling protein belonging to the family of fibroblast growth factors (FGFs). It has emerged as a molecule of interest for treating various metabolic diseases due to its role in regulating glucogenesis and ketogenesis in the liver. However, FGF21 is prone to heat, proteolytic, and acid-mediated degradation, and its low molecular weight makes it susceptible to kidney clearance, significantly reducing its therapeutic potential. Protein engineering studies addressing these challenges have generally shown that increasing the thermostability of FGF21 led to improved pharmacokinetics. Here, we describe the computer-aided design and experimental characterization of FGF21 variants with enhanced melting temperature up to 15 °C, uncompromised efficacy at activation of MAPK/ERK signaling in Hep G2 cell culture, and ability to stimulate proliferation of Hep G2 and NIH 3T3 fibroblasts cells comparable with FGF21-WT. We propose that stabilizing the FGF21 molecule by rational design should be combined with other reported stabilization strategies to maximize the pharmaceutical potential of FGF21.
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Affiliation(s)
- Gabin de La Bourdonnaye
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Tereza Ghazalova
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Petr Fojtik
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - David Bednar
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jiri Damborsky
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Vladimir Rotrekl
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | | | - Radka Chaloupkova
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
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2
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Vu TL, Nguyen TKO, Song JA, Chong S, Choe H. Enhanced prokaryotic expression, purification, and biological activities of human keratinocyte growth factor. J Biotechnol 2024; 386:42-51. [PMID: 38552676 DOI: 10.1016/j.jbiotec.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 04/04/2024]
Abstract
Keratinocyte growth factor (KGF), also known as fibroblast growth factor 7 (FGF7), plays a critical role in embryonic development, cell proliferation, and differentiation. However, efficient production of recombinant KGF remains a challenge due to its low expression levels and high tendency for aggregation in Escherichia coli. This study aimed to enhance the expression and solubility of KGF by employing different protein tags-PDIb'a', MBP, and His-fused to the N-terminus of KGF. Among these, H-PDIb'a'-KGF demonstrated superior stability and was selected for large-scale production and purification. The purified KGF was confirmed through liquid chromatography with tandem mass spectrometry analysis, which showed an 81% fragment mass identification coverage. Biological activity assessments using human breast cancer MCF-7 cells indicated that purified KGF significantly increased cell proliferation, with an EC50 of 6.4 ± 0.5 pM. Interestingly, PDIb'a' alone also exhibited a stimulatory effect on MCF-7 cells. Furthermore, the purified KGF enhanced the wound healing of HaCaT keratinocytes in a dose-dependent manner. These findings provide valuable insights into the efficient production and functional characterization of recombinant KGF for potential applications in therapeutic interventions.
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Affiliation(s)
- Thi Luong Vu
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Thi Kieu Oanh Nguyen
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Jung-A Song
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Seonha Chong
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Han Choe
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea.
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3
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Karl K, Del Piccolo N, Light T, Roy T, Dudeja P, Ursachi VC, Fafilek B, Krejci P, Hristova K. Ligand bias underlies differential signaling of multiple FGFs via FGFR1. eLife 2024; 12:RP88144. [PMID: 38568193 PMCID: PMC10990489 DOI: 10.7554/elife.88144] [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] [Indexed: 04/05/2024] Open
Abstract
The differential signaling of multiple FGF ligands through a single fibroblast growth factor (FGF) receptor (FGFR) plays an important role in embryonic development. Here, we use quantitative biophysical tools to uncover the mechanism behind differences in FGFR1c signaling in response to FGF4, FGF8, and FGF9, a process which is relevant for limb bud outgrowth. We find that FGF8 preferentially induces FRS2 phosphorylation and extracellular matrix loss, while FGF4 and FGF9 preferentially induce FGFR1c phosphorylation and cell growth arrest. Thus, we demonstrate that FGF8 is a biased FGFR1c ligand, as compared to FGF4 and FGF9. Förster resonance energy transfer experiments reveal a correlation between biased signaling and the conformation of the FGFR1c transmembrane domain dimer. Our findings expand the mechanistic understanding of FGF signaling during development and bring the poorly understood concept of receptor tyrosine kinase ligand bias into the spotlight.
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Affiliation(s)
- Kelly Karl
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Nuala Del Piccolo
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Taylor Light
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Tanaya Roy
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Pooja Dudeja
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
| | - Vlad-Constantin Ursachi
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- International Clinical Research Center, St. Anne's University HospitalBrnoCzech Republic
| | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
- International Clinical Research Center, St. Anne's University HospitalBrnoCzech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
- International Clinical Research Center, St. Anne's University HospitalBrnoCzech Republic
| | - Kalina Hristova
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
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4
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Pires F, Silva JC, Ferreira FC, Portugal CAM. Heparinized Acellular Hydrogels for Magnetically Induced Wound Healing Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9908-9924. [PMID: 38381140 DOI: 10.1021/acsami.3c18877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
The control of angiogenesis has the potential to be used for regulation of several pathological and physiological processes, which can be instrumental on the development of anticancer and wound healing therapeutical approaches. In this study, mesenchymal stem/stromal cells (MSCs) were seeded on magnetic-responsive gelatin, with or without heparin functionalization, and exposed to a static 0.08 T magnetic field (MF), for controlling their anti-inflammatory and angiogenic activity, with the aim of accelerating tissue healing. For the first time, it was examined how the amount of heparin and magnetic nanoparticles (MNPs) distributed on gelatin scaffolds affected the mechanical properties of the hydrogels and the morphology, proliferation, and secretome profiling of MSCs. The findings demonstrated that the addition of MNPs and heparin affects the hydrogel swelling capacity and renders distinct MSC proliferation rates. Additionally, MF acts as a topographical cue to guide MSCs alignment and increases the level of expression of specific genes and proteins that promote angiogenesis. The results also suggested that the presence of higher amounts of heparin (10 μg/cm3) interferes with the secretion and limits the capacity of angiogenic factors to diffuse through the hydrogel and into the culture medium. Ultimately, this study shows that acellular heparinized hydrogels efficiently retain the angiogenic growth factors released by magnetically stimulated MSCs thus rendering superior wound contraction (55.8% ± 0.4%) and cell migration rate (49.4% ± 0.4%), in comparison to nonheparinized hydrogels (35.2% ± 0.7% and 37.8% ± 0.7%, respectively). Therefore, these heparinized magnetic hydrogels can be used to facilitate angiogenesis in various forms of tissue damage including bone defects, skin wounds, and cardiovascular diseases, leading to enhanced tissue regeneration.
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Affiliation(s)
- Filipa Pires
- Instituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João Carlos Silva
- Department of Bioengineering and iBB - Institute of Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Frederico Castelo Ferreira
- Department of Bioengineering and iBB - Institute of Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Carla A M Portugal
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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5
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Kadlecová Z, Sevriugina V, Lysáková K, Rychetský M, Chamradová I, Vojtová L. Liposomes Affect Protein Release and Stability of ITA-Modified PLGA-PEG-PLGA Hydrogel Carriers for Controlled Drug Delivery. Biomacromolecules 2024; 25:67-76. [PMID: 38135465 PMCID: PMC10777393 DOI: 10.1021/acs.biomac.3c00736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
Fat grafting, a key regenerative medicine technique, often requires repeat procedures due to high-fat reabsorption and volume loss. Addressing this, a novel drug delivery system uniquely combines a thermosensitive, FDA-approved hydrogel (itaconic acid-modified PLGA-PEG-PLGA copolymer) with FGF2-STAB, a stable fibroblast growth factor 2 with a 21-day stability, far exceeding a few hours of wild-type FGF2's stability. Additionally, the growth factor was encapsulated in "green" liposomes prepared via the Mozafari method, ensuring pH protection. The system, characterized by first-order FGF2-STAB release, employs green chemistry for biocompatibility, bioactivity, and eco-friendliness. The liposomes, with diameters of 85.73 ± 3.85 nm and 68.6 ± 2.2% encapsulation efficiency, allowed controlled FGF2-STAB release from the hydrogel compared to the unencapsulated FGF2-STAB. Yet, the protein compromised the carrier's hydrolytic stability. Prior tests were conducted on model proteins human albumin (efficiency 80.8 ± 3.2%) and lysozyme (efficiency 81.0 ± 2.7%). This injectable thermosensitive system could advance reconstructive medicine and cosmetic procedures.
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Affiliation(s)
- Zuzana Kadlecová
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
656/123, 612 00 Brno, Czech Republic
| | - Veronika Sevriugina
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
656/123, 612 00 Brno, Czech Republic
| | - Klára Lysáková
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
656/123, 612 00 Brno, Czech Republic
| | - Matěj Rychetský
- Faculty
of Chemistry, Brno University of Technology, Purkyňova 464, 612 00 Brno, Czech Republic
| | - Ivana Chamradová
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
656/123, 612 00 Brno, Czech Republic
| | - Lucy Vojtová
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
656/123, 612 00 Brno, Czech Republic
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6
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Fowler EW, Witt RL, Jia X. Basement Membrane Mimetic Hydrogel Cooperates with Rho-Associated Protein Kinase Inhibitor to Promote the Development of Acini-Like Salivary Gland Spheroids. ADVANCED NANOBIOMED RESEARCH 2023; 3:2300088. [PMID: 38645834 PMCID: PMC11031203 DOI: 10.1002/anbr.202300088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024] Open
Abstract
Successful engineering of functional salivary glands necessitates the creation of cell-instructive environments for ex vivo expansion and lineage specification of primary human salivary gland stem cells (hS/PCs). Herein, basement membrane mimetic hydrogels were prepared using hyaluronic acid, cell adhesive peptides, and hyperbranched polyglycerol (HPG), with or without sulfate groups, to produce "hyperGel+" or "hyperGel", respectively. Differential scanning fluorescence experiments confirmed the ability of the sulphated HPG precursor to stabilize fibroblast growth factor 10. The hydrogels were nanoporous, cytocompatibile and cell-permissive, enabling the development of multicellular hS/PC spheroids in 14 days. Incorporation of sulfated HPG species in the hydrogel enhanced cell proliferation. Culture of hS/PCs in hyperGel+ in the presence of a Rho kinase inhibitor, Y-27632 (Y-27), led to the development of spheroids with a central lumen, increased the expression of acinar marker aquaporin-3 at the transcript level (AQP3), and decreased the expression of ductal marker keratin 7 at both the transcript (KRT7) and the protein levels (K7). Reduced expression of transforming growth factor beta (TGF-β) targets SMAD2/3 was also observed in Y27-treated cultures, suggesting attenuation of TGF-β signaling. Thus, hyperGel+ cooperates with the ROCK inhibitor to promote the development of lumened spheroids with enhanced expression of acinar markers.
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Affiliation(s)
- Eric W. Fowler
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, 19716, USA
| | - Robert L. Witt
- Helen F. Graham Cancer Center and Research Institute, Christiana Care, Newark, Delaware, 19713, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware, 19716, USA
- Delaware Biotechnology Institute, 590 Avenue 1743, Newark, DE 19713, USA
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7
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Jan Vilim, Ghazalova T, Petulova E, Horackova A, Stepankova V, Chaloupkova R, Bednar D, Damborsky J, Prokop Z. Computer-assisted stabilization of fibroblast growth factor FGF-18. Comput Struct Biotechnol J 2023; 21:5144-5152. [PMID: 37920818 PMCID: PMC10618113 DOI: 10.1016/j.csbj.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 11/04/2023] Open
Abstract
The fibroblast growth factors (FGF) family holds significant potential for addressing chronic diseases. Specifically, recombinant FGF18 shows promise in treating osteoarthritis by stimulating cartilage formation. However, recent phase 2 clinical trial results of sprifermin (recombinant FGF18) indicate insufficient efficacy. Leveraging our expertise in rational protein engineering, we conducted a study to enhance the stability of FGF18. As a result, we obtained a stabilized variant called FGF18-E4, which exhibited improved stability with 16 °C higher melting temperature, resistance to trypsin and a 2.5-fold increase in production yields. Moreover, the FGF18-E4 maintained mitogenic activity after 1-week incubation at 37 °C and 1-day at 50 °C. Additionally, the inserted mutations did not affect its binding to the fibroblast growth factor receptors, making FGF18-E4 a promising candidate for advancing FGF-based osteoarthritis treatment.
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Affiliation(s)
- Jan Vilim
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
- Enantis Ltd., INBIT, Kamenice 34, 625 00 Brno, Czech Republic
| | | | - Eliska Petulova
- Enantis Ltd., INBIT, Kamenice 34, 625 00 Brno, Czech Republic
| | - Aneta Horackova
- Enantis Ltd., INBIT, Kamenice 34, 625 00 Brno, Czech Republic
| | | | | | - David Bednar
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital Brno, Pekarska 53, 656 91 Brno, Czech Republic
| | - Jiri Damborsky
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital Brno, Pekarska 53, 656 91 Brno, Czech Republic
| | - Zbynek Prokop
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital Brno, Pekarska 53, 656 91 Brno, Czech Republic
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8
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Zhou Y, Sun S, Ling T, Chen Y, Zhou R, You Q. The role of fibroblast growth factor 18 in cancers: functions and signaling pathways. Front Oncol 2023; 13:1124520. [PMID: 37228502 PMCID: PMC10203589 DOI: 10.3389/fonc.2023.1124520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/21/2023] [Indexed: 05/27/2023] Open
Abstract
Fibroblast growth factor 18(FGF18) is a member of the fibroblast growth factor family (FGFs). FGF18 is a class of bioactive substances that can conduct biological signals, regulate cell growth, participate in tissue repair and other functions, and can promote the occurrence and development of different types of malignant tumors through various mechanisms. In this review, we focus on recent studies of FGF18 in the diagnosis, treatment, and prognosis of tumors in digestive, reproductive, urinary, respiratory, motor, and pediatric systems. These findings suggest that FGF18 may play an increasingly important role in the clinical evaluation of these malignancies. Overall, FGF18 can function as an important oncogene at different gene and protein levels, and can be used as a potential new therapeutic target and prognostic biomarker for these tumors.
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Affiliation(s)
- Yiming Zhou
- Department of Biotherapy, Medical Center for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Sizheng Sun
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tao Ling
- Department of Biotherapy, Medical Center for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yongzhen Chen
- Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Rongzhong Zhou
- Department of Ophthalmology, Zaoyang First People’s Hosipital, Zaoyang, China
| | - Qiang You
- Department of Biotherapy, Medical Center for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
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9
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The future for the application of fibroblast growth factor 2 in modern wound healing. Burns 2023; 49:484-486. [PMID: 36379824 DOI: 10.1016/j.burns.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 10/29/2022] [Indexed: 11/11/2022]
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10
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Hartl I, Brumovska V, Striedner Y, Yasari A, Schütz GJ, Sevcsik E, Tiemann-Boege I. Measurement of FGFR3 signaling at the cell membrane via total internal reflection fluorescence microscopy to compare the activation of FGFR3 mutants. J Biol Chem 2023; 299:102832. [PMID: 36581204 PMCID: PMC9900515 DOI: 10.1016/j.jbc.2022.102832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/28/2022] Open
Abstract
Fibroblast growth factor receptors (FGFRs) initiate signal transduction via the RAS/mitogen-activated protein kinase pathway by their tyrosine kinase activation known to determine cell growth, tissue differentiation, and apoptosis. Recently, many missense mutations have been reported for FGFR3, but we only know the functional effect for a handful of them. Some mutations result in aberrant FGFR3 signaling and are associated with various genetic disorders and oncogenic conditions. Here, we employed micropatterned surfaces to specifically enrich fluorophore-tagged FGFR3 (monomeric GFP [mGFP]-FGFR3) in certain areas of the plasma membrane of living cells. We quantified receptor activation via total internal reflection fluorescence microscopy of FGFR3 signaling at the cell membrane that captured the recruitment of the downstream signal transducer growth factor receptor-bound 2 (GRB2) tagged with mScarlet (GRB2-mScarlet) to FGFR3 micropatterns. With this system, we tested the activation of FGFR3 upon ligand addition (fgf1 and fgf2) for WT and four FGFR3 mutants associated with congenital disorders (G380R, Y373C, K650Q, and K650E). Our data showed that ligand addition increased GRB2 recruitment to WT FGFR3, with fgf1 having a stronger effect than fgf2. For all mutants, we found an increased basal receptor activity, and only for two of the four mutants (G380R and K650Q), activity was further increased upon ligand addition. Compared with previous reports, two mutant receptors (K650Q and K650E) had either an unexpectedly high or low activation state, respectively. This can be attributed to the different methodology, since micropatterning specifically captures signaling events at the plasma membrane. Collectively, our results provide further insight into the functional effects of mutations to FGFR3.
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Affiliation(s)
- Ingrid Hartl
- Institute of Biophysics, Johannes Kepler University, Linz, Austria
| | | | - Yasmin Striedner
- Institute of Biophysics, Johannes Kepler University, Linz, Austria
| | - Atena Yasari
- Institute of Biophysics, Johannes Kepler University, Linz, Austria
| | | | - Eva Sevcsik
- Insitute of Applied Physics, TU Wien, Vienna, Austria.
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11
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Kolasa M, Czerczak K, Fraczyk J, Szymanski L, Lewicki S, Bednarowicz A, Tarzynska N, Sikorski D, Szparaga G, Draczynski Z, Cierniak S, Brzoskowska U, Galita G, Majsterek I, Bociaga D, Krol P, Kolesinska B. Evaluation of Polysaccharide-Peptide Conjugates Containing the RGD Motif for Potential Use in Muscle Tissue Regeneration. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6432. [PMID: 36143745 PMCID: PMC9503514 DOI: 10.3390/ma15186432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/31/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
New scaffold materials composed of biodegradable components are of great interest in regenerative medicine. These materials should be: stable, nontoxic, and biodegrade slowly and steadily, allowing the stable release of biodegradable and biologically active substances. We analyzed peptide-polysaccharide conjugates derived from peptides containing RGD motif (H-RGDS-OH (1), H-GRGDS-NH2 (2), and cyclo(RGDfC) (3)) and polysaccharides as scaffolds to select the most appropriate biomaterials for application in regenerative medicine. Based on the results of MTT and Ki-67 assays, we can state that the conjugates containing calcium alginate and the ternary nonwoven material were the most supportive of muscle tissue regeneration. Scanning electron microscopy imaging and light microscopy studies with hematoxylin-eosin staining showed that C2C12 cells were able to interact with the tested peptide-polysaccharide conjugates. The release factor (Q) varied depending on both the peptide and the structure of the polysaccharide matrix. LDH, Alamarblue®, Ki-67, and cell cycle assays indicated that peptides 1 and 2 were characterized by the best biological properties. Conjugates containing chitosan and the ternary polysaccharide nonwoven with peptide 1 exhibited very high antibacterial activity against Staphylococcus aureus and Klebsiella pneumoniae. Overall, the results of the study suggested that polysaccharide conjugates with peptides 1 and 2 can be potentially used in regenerative medicine.
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Affiliation(s)
- Marcin Kolasa
- Military Institute of Hygiene and Epidemiology, Department of Pharmacology and Toxicology, Kozielska 4, 01-163 Warsaw, Poland
| | - Katarzyna Czerczak
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Justyna Fraczyk
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Lukasz Szymanski
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Science, Postępu 36A, 05-552 Magdalenka, Poland
| | - Slawomir Lewicki
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Science, Postępu 36A, 05-552 Magdalenka, Poland
| | - Anna Bednarowicz
- Institute of Material Sciences of Textiles and Polymer Composites, Faculty of Material Technologies and Textile Design, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Nina Tarzynska
- Institute of Material Sciences of Textiles and Polymer Composites, Faculty of Material Technologies and Textile Design, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Dominik Sikorski
- Institute of Material Sciences of Textiles and Polymer Composites, Faculty of Material Technologies and Textile Design, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Grzegorz Szparaga
- Institute of Material Sciences of Textiles and Polymer Composites, Faculty of Material Technologies and Textile Design, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Zbigniew Draczynski
- Institute of Material Sciences of Textiles and Polymer Composites, Faculty of Material Technologies and Textile Design, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | | | | | - Grzegorz Galita
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Narutowicza 60, 90-136 Lodz, Poland
| | - Ireneusz Majsterek
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Narutowicza 60, 90-136 Lodz, Poland
| | - Dorota Bociaga
- Institute of Materials Science and Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-537 Lodz, Poland
| | - Paulina Krol
- Lukasiewicz Research Network-Textile Research Institute, Brzezinska 5/15, 92-103 Lodz, Poland
| | - Beata Kolesinska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
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12
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Krzyscik MA, Opaliński Ł, Szymczyk J, Otlewski J. Cyclic and dimeric fibroblast growth factor 2 variants with high biomedical potential. Int J Biol Macromol 2022; 218:243-258. [PMID: 35878661 DOI: 10.1016/j.ijbiomac.2022.07.105] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/29/2022] [Accepted: 07/14/2022] [Indexed: 11/05/2022]
Abstract
Fibroblast growth factor 2 (FGF2) is a pleiotropic protein engaged in the regulation of key cellular processes in a wide spectrum of cells. FGF2 is an important object of basic research as well as a molecule used in regenerative medicine, in vitro cell culture maintenance, and as an anticancer drug carrier. However, the unsatisfactory stability and pleiotropic activities of the wild-type FGF2 largely limit its use as a medical product. To overcome these limitations, we have designed a set of FGF2-based macromolecules via sortase A-mediated cyclization and oligomerization. We obtained heparin-switchable FGF2 variants with enhanced stability and improved ability to stimulate cell proliferation and migration. We have shown that stimulation of glucose uptake by adipocytes is modulated by the architecture of FGF2 oligomers. Moreover, we used hyper-stable FGF2 variants for the construction of highly effective drug carriers for selective killing of FGFR1-overproducing cancer cells. The strategy for FGF2 engineering presented in this work provides novel insights into the design of growth factor variants for regenerative and anti-cancer precise medicine.
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Affiliation(s)
- Mateusz A Krzyscik
- University of Wroclaw, Faculty of Biotechnology, Department of Protein Engineering, 50-383 Wroclaw, Poland
| | - Łukasz Opaliński
- University of Wroclaw, Faculty of Biotechnology, Department of Protein Engineering, 50-383 Wroclaw, Poland
| | - Jakub Szymczyk
- University of Wroclaw, Faculty of Biotechnology, Department of Protein Engineering, 50-383 Wroclaw, Poland
| | - Jacek Otlewski
- University of Wroclaw, Faculty of Biotechnology, Department of Protein Engineering, 50-383 Wroclaw, Poland.
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13
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Yang MJ, Kim J, Lee Y, Lee W, Park CJ. NMR Structure and Biophysical Characterization of Thermophilic Single-Stranded DNA Binding Protein from Sulfolobus Solfataricus. Int J Mol Sci 2022; 23:ijms23063099. [PMID: 35328522 PMCID: PMC8954794 DOI: 10.3390/ijms23063099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 12/31/2022] Open
Abstract
Proteins from Sulfolobus solfataricus (S. solfataricus), an extremophile, are active even at high temperatures. The single-stranded DNA (ssDNA) binding protein of S. solfataricus (SsoSSB) is overexpressed to protect ssDNA during DNA metabolism. Although SsoSSB has the potential to be applied in various areas, its structural and ssDNA binding properties at high temperatures have not been studied. We present the solution structure, backbone dynamics, and ssDNA binding properties of SsoSSB at 50 °C. The overall structure is consistent with the structures previously studied at room temperature. However, the loop between the first two β sheets, which is flexible and is expected to undergo conformational change upon ssDNA binding, shows a difference from the ssDNA bound structure. The ssDNA binding ability was maintained at high temperature, but different interactions were observed depending on the temperature. Backbone dynamics at high temperature showed that the rigidity of the structured region was well maintained. The investigation of an N-terminal deletion mutant revealed that it is important for maintaining thermostability, structure, and ssDNA binding ability. The structural and dynamic properties of SsoSSB observed at high temperature can provide information on the behavior of proteins in thermophiles at the molecular level and guide the development of new experimental techniques.
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Affiliation(s)
- Min June Yang
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (M.J.Y.); (J.K.)
| | - Jinwoo Kim
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (M.J.Y.); (J.K.)
| | - Yeongjoon Lee
- Department of Chemistry, University of Colorado Denver, Denver, CO 80217-3364, USA;
| | - Woonghee Lee
- Department of Chemistry, University of Colorado Denver, Denver, CO 80217-3364, USA;
- Correspondence: (W.L.); (C.-J.P.); Tel.: +1-303-315-7672 (W.L.); +82-62-715-3630 (C.-J.P.)
| | - Chin-Ju Park
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (M.J.Y.); (J.K.)
- Correspondence: (W.L.); (C.-J.P.); Tel.: +1-303-315-7672 (W.L.); +82-62-715-3630 (C.-J.P.)
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14
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Wang ST, Neo BH, Betts RJ. Glycosaminoglycans: Sweet as Sugar Targets for Topical Skin Anti-Aging. Clin Cosmet Investig Dermatol 2021; 14:1227-1246. [PMID: 34548803 PMCID: PMC8449875 DOI: 10.2147/ccid.s328671] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 08/19/2021] [Indexed: 12/23/2022]
Abstract
Glycosaminoglycans (GAGs) are long, linear polysaccharides comprised of repeating disaccharide units with pleiotropic biological functions, with the non-sulfated GAG hyaluronic acid (HA), and sulfated GAGs dermatan sulfate, chondroitin sulfate, heparan sulfate, keratan sulfate, and to a lesser extent heparin all being expressed in skin. Their ability to regulate keratinocyte proliferation and differentiation, inflammatory processes and extracellular matrix composition and quality demonstrates their critical role in regulating skin physiology. Similarly, the water-binding properties of GAGs and structural qualities, particularly for HA, are crucial for maintaining proper skin form and hydration. The biological importance of GAGs, as well as extensive evidence that their properties and functions are altered in both chronological and extrinsic skin aging, makes them highly promising targets to improve cosmetic skin quality. Within the present review, we examine the cutaneous biological activity of GAGs alongside the protein complexes they form called proteoglycans and summarize the age-related changes of these molecules in skin. We also examine current topical interventional approaches to modulate GAGs for improved skin quality such as direct exogenous administration of GAGs, with a particular interest in strategies targeted at potentiating GAG levels in skin through either attenuating GAG degradation or increasing GAG production.
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Affiliation(s)
- Siew Tein Wang
- L'Oréal Research & Innovation, L'Oréal Singapore, Singapore
| | - Boon Hoe Neo
- L'Oréal Research & Innovation, L'Oréal Singapore, Singapore
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15
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Krticka M, Planka L, Vojtova L, Nekuda V, Stastny P, Sedlacek R, Brinek A, Kavkova M, Gopfert E, Hedvicakova V, Rampichova M, Kren L, Liskova K, Ira D, Dorazilová J, Suchy T, Zikmund T, Kaiser J, Stary D, Faldyna M, Trunec M. Lumbar Interbody Fusion Conducted on a Porcine Model with a Bioresorbable Ceramic/Biopolymer Hybrid Implant Enriched with Hyperstable Fibroblast Growth Factor 2. Biomedicines 2021; 9:733. [PMID: 34202232 PMCID: PMC8301420 DOI: 10.3390/biomedicines9070733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 11/17/2022] Open
Abstract
Many growth factors have been studied as additives accelerating lumbar fusion rates in different animal models. However, their low hydrolytic and thermal stability both in vitro and in vivo limits their workability and use. In the proposed work, a stabilized vasculogenic and prohealing fibroblast growth factor-2 (FGF2-STAB®) exhibiting a functional half-life in vitro at 37 °C more than 20 days was applied for lumbar fusion in combination with a bioresorbable scaffold on porcine models. An experimental animal study was designed to investigate the intervertebral fusion efficiency and safety of a bioresorbable ceramic/biopolymer hybrid implant enriched with FGF2-STAB® in comparison with a tricortical bone autograft used as a gold standard. Twenty-four experimental pigs underwent L2/3 discectomy with implantation of either the tricortical iliac crest bone autograft or the bioresorbable hybrid implant (BHI) followed by lateral intervertebral fixation. The quality of spinal fusion was assessed by micro-computed tomography (micro-CT), biomechanical testing, and histological examination at both 8 and 16 weeks after the surgery. While 8 weeks after implantation, micro-CT analysis demonstrated similar fusion quality in both groups, in contrast, spines with BHI involving inorganic hydroxyapatite and tricalcium phosphate along with organic collagen, oxidized cellulose, and FGF2- STAB® showed a significant increase in a fusion quality in comparison to the autograft group 16 weeks post-surgery (p = 0.023). Biomechanical testing revealed significantly higher stiffness of spines treated with the bioresorbable hybrid implant group compared to the autograft group (p < 0.05). Whilst histomorphological evaluation showed significant progression of new bone formation in the BHI group besides non-union and fibrocartilage tissue formed in the autograft group. Significant osteoinductive effects of BHI based on bioceramics, collagen, oxidized cellulose, and FGF2-STAB® could improve outcomes in spinal fusion surgery and bone tissue regeneration.
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Affiliation(s)
- Milan Krticka
- Trauma Surgery Department, Faculty of Medicine, Masaryk University and The University Hospital Brno, 625 00 Brno, Czech Republic; (M.K.); (V.N.); (D.I.)
| | - Ladislav Planka
- Department of Paediatric Surgery, Orthopedics and Traumatology, Faculty of Medicine, Masaryk University and The University Hospital Brno, 662 63 Brno, Czech Republic; (L.P.); (D.S.)
| | - Lucy Vojtova
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
| | - Vladimir Nekuda
- Trauma Surgery Department, Faculty of Medicine, Masaryk University and The University Hospital Brno, 625 00 Brno, Czech Republic; (M.K.); (V.N.); (D.I.)
| | - Premysl Stastny
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
| | - Radek Sedlacek
- Department of Mechanics, Biomechanics and Mechatronics, Faculty of Mechanical Engineering, Czech Technical University in Prague, 160 00 Prague, Czech Republic;
| | - Adam Brinek
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
| | - Michaela Kavkova
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
| | - Eduard Gopfert
- Veterinary Research Institute, 621 00 Brno, Czech Republic; (E.G.); (M.F.)
| | - Vera Hedvicakova
- University Center for Energy Efficient Buildings, Czech Technical University in Prague, 273 43 Bustehrad, Czech Republic; (V.H.); (M.R.)
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Michala Rampichova
- University Center for Energy Efficient Buildings, Czech Technical University in Prague, 273 43 Bustehrad, Czech Republic; (V.H.); (M.R.)
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Leos Kren
- Department of Pathology, Faculty of Medicine of Masaryk University and The University Hospital Brno, 625 00 Brno, Czech Republic; (L.K.); (K.L.)
| | - Kvetoslava Liskova
- Department of Pathology, Faculty of Medicine of Masaryk University and The University Hospital Brno, 625 00 Brno, Czech Republic; (L.K.); (K.L.)
| | - Daniel Ira
- Trauma Surgery Department, Faculty of Medicine, Masaryk University and The University Hospital Brno, 625 00 Brno, Czech Republic; (M.K.); (V.N.); (D.I.)
| | - Jana Dorazilová
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
| | - Tomas Suchy
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, The Czech Academy of Sciences, 182 09 Prague, Czech Republic;
| | - Tomas Zikmund
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
| | - Jozef Kaiser
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
| | - David Stary
- Department of Paediatric Surgery, Orthopedics and Traumatology, Faculty of Medicine, Masaryk University and The University Hospital Brno, 662 63 Brno, Czech Republic; (L.P.); (D.S.)
| | - Martin Faldyna
- Veterinary Research Institute, 621 00 Brno, Czech Republic; (E.G.); (M.F.)
| | - Martin Trunec
- CEITEC-Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (P.S.); (A.B.); (M.K.); (J.D.); (T.Z.); (J.K.); (M.T.)
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16
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Carleton MM, Sefton MV. Promoting endogenous repair of skeletal muscle using regenerative biomaterials. J Biomed Mater Res A 2021; 109:2720-2739. [PMID: 34041836 DOI: 10.1002/jbm.a.37239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 02/06/2023]
Abstract
Skeletal muscles normally have a remarkable ability to repair themselves; however, large muscle injuries and several myopathies diminish this ability leading to permanent loss of function. No clinical therapy yet exists that reliably restores muscle integrity and function following severe injury. Consequently, numerous tissue engineering techniques, both acellular and with cells, are being investigated to enhance muscle regeneration. Biomaterials are an essential part of these techniques as they can present physical and biochemical signals that augment the repair process. Successful tissue engineering strategies require regenerative biomaterials that either actively promote endogenous muscle repair or create an environment supportive of regeneration. This review will discuss several acellular biomaterial strategies for skeletal muscle regeneration with a focus on those under investigation in vivo. This includes materials that release bioactive molecules, biomimetic materials and immunomodulatory materials.
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Affiliation(s)
- Miranda M Carleton
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Michael V Sefton
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
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17
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Vojtová L, Pavliňáková V, Muchová J, Kacvinská K, Brtníková J, Knoz M, Lipový B, Faldyna M, Göpfert E, Holoubek J, Pavlovský Z, Vícenová M, Blahnová VH, Hearnden V, Filová E. Healing and Angiogenic Properties of Collagen/Chitosan Scaffolds Enriched with Hyperstable FGF2-STAB ® Protein: In Vitro, Ex Ovo and In Vivo Comprehensive Evaluation. Biomedicines 2021; 9:590. [PMID: 34067330 PMCID: PMC8224647 DOI: 10.3390/biomedicines9060590] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/13/2021] [Accepted: 05/19/2021] [Indexed: 12/15/2022] Open
Abstract
Wound healing is a process regulated by a complex interaction of multiple growth factors including fibroblast growth factor 2 (FGF2). Although FGF2 appears in several tissue engineered studies, its applications are limited due to its low stability both in vitro and in vivo. Here, this shortcoming is overcome by a unique nine-point mutant of the low molecular weight isoform FGF2 retaining full biological activity even after twenty days at 37 °C. Crosslinked freeze-dried 3D porous collagen/chitosan scaffolds enriched with this hyper stable recombinant human protein named FGF2-STAB® were tested for in vitro biocompatibility and cytotoxicity using murine 3T3-A31 fibroblasts, for angiogenic potential using an ex ovo chick chorioallantoic membrane assay and for wound healing in vivo with 3-month old white New Zealand rabbits. Metabolic activity assays indicated the positive effect of FGF2-STAB® already at very low concentrations (0.01 µg/mL). The angiogenic properties examined ex ovo showed enhanced vascularization of the tested scaffolds. Histological evaluation and gene expression analysis by RT-qPCR proved newly formed granulation tissue at the place of a previous skin defect without significant inflammation infiltration in vivo. This work highlights the safety and biocompatibility of newly developed crosslinked collagen/chitosan scaffolds involving FGF2-STAB® protein. Moreover, these sponges could be used as scaffolds for growing cells for dermis replacement, where neovascularization is a crucial parameter for successful skin regeneration.
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Affiliation(s)
- Lucy Vojtová
- CEITEC–Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (L.V.); (J.M.); (K.K.); (J.B.); (B.L.)
| | - Veronika Pavliňáková
- CEITEC–Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (L.V.); (J.M.); (K.K.); (J.B.); (B.L.)
| | - Johana Muchová
- CEITEC–Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (L.V.); (J.M.); (K.K.); (J.B.); (B.L.)
| | - Katarína Kacvinská
- CEITEC–Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (L.V.); (J.M.); (K.K.); (J.B.); (B.L.)
| | - Jana Brtníková
- CEITEC–Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (L.V.); (J.M.); (K.K.); (J.B.); (B.L.)
| | - Martin Knoz
- Faculty of Medicine, Department of Burns and Plastic Surgery, Institution Shared with the University Hospital Brno, 625 00 Brno, Czech Republic; (M.K.); (J.H.)
- Clinic of Plastic and Esthetic Surgery, St Anne’s University Hospital, 602 00 Brno, Czech Republic
| | - Břetislav Lipový
- CEITEC–Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic; (L.V.); (J.M.); (K.K.); (J.B.); (B.L.)
- Faculty of Medicine, Department of Burns and Plastic Surgery, Institution Shared with the University Hospital Brno, 625 00 Brno, Czech Republic; (M.K.); (J.H.)
| | - Martin Faldyna
- Veterinary Research Institute, 621 00 Brno, Czech Republic; (M.F.); (E.G.); (M.V.)
| | - Eduard Göpfert
- Veterinary Research Institute, 621 00 Brno, Czech Republic; (M.F.); (E.G.); (M.V.)
| | - Jakub Holoubek
- Faculty of Medicine, Department of Burns and Plastic Surgery, Institution Shared with the University Hospital Brno, 625 00 Brno, Czech Republic; (M.K.); (J.H.)
| | - Zdeněk Pavlovský
- Faculty of Medicine, Institute of Pathology, University Hospital Brno, Masaryk University, 625 00 Brno, Czech Republic;
| | - Monika Vícenová
- Veterinary Research Institute, 621 00 Brno, Czech Republic; (M.F.); (E.G.); (M.V.)
| | - Veronika Hefka Blahnová
- Institute of Experimental Medicine of the Czech Academy of Science, 142 20 Prague, Czech Republic; (V.H.B.); (E.F.)
| | - Vanessa Hearnden
- Department of Materials Science and Engineering, Kroto Research Institute, North Campus, University of Sheffield, Broad Lane, Sheffield S3 7HQ, UK;
| | - Eva Filová
- Institute of Experimental Medicine of the Czech Academy of Science, 142 20 Prague, Czech Republic; (V.H.B.); (E.F.)
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18
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Souza PR, de Oliveira AC, Vilsinski BH, Kipper MJ, Martins AF. Polysaccharide-Based Materials Created by Physical Processes: From Preparation to Biomedical Applications. Pharmaceutics 2021; 13:621. [PMID: 33925380 PMCID: PMC8146878 DOI: 10.3390/pharmaceutics13050621] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 02/07/2023] Open
Abstract
Polysaccharide-based materials created by physical processes have received considerable attention for biomedical applications. These structures are often made by associating charged polyelectrolytes in aqueous solutions, avoiding toxic chemistries (crosslinking agents). We review the principal polysaccharides (glycosaminoglycans, marine polysaccharides, and derivatives) containing ionizable groups in their structures and cellulose (neutral polysaccharide). Physical materials with high stability in aqueous media can be developed depending on the selected strategy. We review strategies, including coacervation, ionotropic gelation, electrospinning, layer-by-layer coating, gelation of polymer blends, solvent evaporation, and freezing-thawing methods, that create polysaccharide-based assemblies via in situ (one-step) methods for biomedical applications. We focus on materials used for growth factor (GFs) delivery, scaffolds, antimicrobial coatings, and wound dressings.
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Affiliation(s)
- Paulo R. Souza
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
| | - Ariel C. de Oliveira
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
- Laboratory of Materials, Macromolecules and Composites, Federal University of Technology—Paraná (UTFPR), Apucarana 86812-460, PR, Brazil
| | - Bruno H. Vilsinski
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
| | - Matt J. Kipper
- Department of Chemical and Biological Engineering, Colorado State University (CSU), Fort Collins, CO 80523, USA
- School of Advanced Materials Discovery, Colorado State University (CSU), Fort Collins, CO 80523, USA
- School of Biomedical Engineering, Colorado State University (CSU), Fort Collins, CO 80523, USA
| | - Alessandro F. Martins
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
- Laboratory of Materials, Macromolecules and Composites, Federal University of Technology—Paraná (UTFPR), Apucarana 86812-460, PR, Brazil
- Department of Chemical and Biological Engineering, Colorado State University (CSU), Fort Collins, CO 80523, USA
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19
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He W, Liu X, Luo Z, Li L, Fang X. FGF16 regulated by miR-520b enhances the cell proliferation of lung cancer. Open Med (Wars) 2021; 16:419-427. [PMID: 33758783 PMCID: PMC7961213 DOI: 10.1515/med-2021-0232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/03/2020] [Accepted: 12/24/2020] [Indexed: 12/27/2022] Open
Abstract
FGF16 is implicated in the progression of some specific types of cancers, such as embryonic carcinoma, ovarian cancer, and liver cancer. Yet, the function of FGF16 in the development of lung cancer remains largely unexplored. In this study, we present the novel function of FGF16 and the regulation of miR-520b on FGF16 in lung cancer progression. In clinical lung cancer tissues, FGF16 is overexpressed and its high level is negatively associated with the low level of miR-520b. Furthermore, both the transcription and translation levels of FGF16 are restrained by miR-520b in lung cancer cells. For the regulatory mechanism investigation, miR-520b is able to directly bind to the 3′-untranslated region (3′UTR) of FGF16 mRNA, leading to its mRNA cleavage in the cells. Functionally, miR-520b reduces the growth of lung cancer and its inhibitor anti-miR520b is able to promote the growth through competing endogenous miR-520b. Moreover, FGF16 silence using RNA interference is capable of doing great damage to anti-miR-520b-accelerated growth of lung cancer. Thus, our finding indicates that FGF16 is a new target gene of miR-520b in lung cancer. For lung cancer, FGF16 may serve as a novel biomarker and miR-520b/FGF16 may be useful in clinical treatment.
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Affiliation(s)
- Wenfeng He
- Department of Oncology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, 510145, China
| | - Xia Liu
- Department of Medical Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510180, China
| | - Zhijie Luo
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Longmei Li
- Department of Oncology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, 510145, China
| | - Xisheng Fang
- Department of Medical Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510180, China
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20
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Oyane A, Araki H, Nakamura M, Aiki Y, Ito Y. Storable bFGF-Releasing Membrane Allowing Continuous Human iPSC Culture. MATERIALS (BASEL, SWITZERLAND) 2021; 14:651. [PMID: 33572553 PMCID: PMC7866866 DOI: 10.3390/ma14030651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/15/2021] [Accepted: 01/26/2021] [Indexed: 12/26/2022]
Abstract
Basic fibroblast growth factor (bFGF) is a crucial supplement for culture media of human pluripotent stem cells. However, bFGF is extremely unstable under cell culture conditions, which makes frequent (generally every day) medium refreshment requisite. We recently developed a water-floatable, bFGF-releasing membrane via a simple bFGF adsorption process following oxygen plasma treatment by utilizing a polyethylene nonwoven fabric as an adsorbent. This membrane allowed sustained release of bFGF while floating on medium, thereby keeping the bFGF concentration in the medium sufficient for maintaining human-induced pluripotent stem cells (iPSCs) in a proliferative and pluripotent state for as long as 3 days. In this study, lyophilization was applied to the membrane to stabilize bFGF. The sustained bFGF-releasing function of the membrane was kept unchanged even after lyophilization and subsequent cryopreservation at -30 °C for 3 months. The cryopreserved membrane supported proliferation and colony formation of human iPSCs while retaining their viability and pluripotency in a medium-change-free continuous culture for 3 days. The present bFGF-releasing membrane is ready-to-use, storable for at least 3 months, and obviates daily medium refreshment. Therefore, it is a new and more practical bFGF supplement for culture media of human stem cells.
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Affiliation(s)
- Ayako Oyane
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan; (H.A.); (M.N.)
| | - Hiroko Araki
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan; (H.A.); (M.N.)
| | - Maki Nakamura
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan; (H.A.); (M.N.)
| | - Yasuhiko Aiki
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan; (Y.A.); (Y.I.)
| | - Yuzuru Ito
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan; (Y.A.); (Y.I.)
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21
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Separation of truncated basic fibroblast growth factor from the full-length protein by hydrophobic interaction chromatography. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117564] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Oliva N, Almquist BD. Spatiotemporal delivery of bioactive molecules for wound healing using stimuli-responsive biomaterials. Adv Drug Deliv Rev 2020; 161-162:22-41. [PMID: 32745497 DOI: 10.1016/j.addr.2020.07.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/03/2020] [Accepted: 07/23/2020] [Indexed: 12/28/2022]
Abstract
Wound repair is a fascinatingly complex process, with overlapping events in both space and time needed to pave a pathway to successful healing. This additional complexity presents challenges when developing methods for the controlled delivery of therapeutics for wound repair and tissue engineering. Unlike more traditional applications, where biomaterial-based depots increase drug solubility and stability in vivo, enhance circulation times, and improve retention in the target tissue, when aiming to modulate wound healing, there is a desire to enable localised, spatiotemporal control of multiple therapeutics. Furthermore, many therapeutics of interest in the context of wound repair are sensitive biologics (e.g. growth factors), which present unique challenges when designing biomaterial-based delivery systems. Here, we review the diverse approaches taken by the biomaterials community for creating stimuli-responsive materials that are beginning to enable spatiotemporal control over the delivery of therapeutics for applications in tissue engineering and regenerative medicine.
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23
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Khalil AS, Xie AW, Johnson HJ, Murphy WL. Sustained release and protein stabilization reduce the growth factor dosage required for human pluripotent stem cell expansion. Biomaterials 2020; 248:120007. [PMID: 32302801 PMCID: PMC8445021 DOI: 10.1016/j.biomaterials.2020.120007] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 02/24/2020] [Accepted: 03/24/2020] [Indexed: 12/17/2022]
Abstract
Translation of human pluripotent stem cell (hPSC)-derived therapies to the clinic demands scalable, cost-effective methods for cell expansion. Culture media currently used for hPSC expansion rely on high concentrations and frequent supplementation of recombinant growth factors due to their short half-life at physiological temperatures. Here, we developed a biomaterial strategy using mineral-coated microparticles (MCMs) to sustain delivery of basic fibroblast growth factor (bFGF), a thermolabile protein critical for hPSC pluripotency and proliferation. We show that the MCMs stabilize bFGF against thermally induced activity loss and provide more efficient sustained release of active growth factor compared to polymeric carriers commonly used for growth factor delivery. Using a statistically driven optimization approach called Design of Experiments, we generated a bFGF-loaded MCM formulation that supported hPSC expansion over 25 passages without the need for additional bFGF supplementation to the media, resulting in greater than 80% reduction in bFGF usage compared to standard approaches. This materials-based strategy to stabilize and sustain delivery of a thermolabile growth factor has broad potential to reduce costs associated with recombinant protein supplements in scalable biomanufacturing of emerging cell therapies.
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Affiliation(s)
- Andrew S Khalil
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Angela W Xie
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Hunter J Johnson
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - William L Murphy
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, 53705, USA; Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53705, USA; Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, WI, 53705, USA.
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24
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Alizadeh AA, Jafari B, Dastmalchi S. Application of bioinformatics and molecular dynamics simulation approaches for identification of fibroblast growth factor 10 analogues with potentially improved thermostability. Growth Factors 2020; 38:197-209. [PMID: 34121575 DOI: 10.1080/08977194.2021.1881501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Fibroblast growth factor 10 functions as a paracrine mesenchymal molecule to initiate signalling pathways regarding to cellular development and health. However, the low thermal stability restricts it's functionality in the human body and the shelf-life of FGF10-based formulations. The current study aimed to employ rational design and bioinformatics approaches to identify some point mutations which may improve the thermal stability of FGF10. Bioinformatics analyses resulted in N105D, C106F, K144R, K153M and I156R as the potential stability conferring mutations. The identified mutants were subjected to MD simulation indicating that all mutations are both structurally and energetically favoured. Finally, the effects of the identified mutations on receptor binding of FGF10 were predicted and the results showed that K144R and K153M mutations may increase the binding affinity relative to the wild type. The findings of the current study propose potentially improved FGF10 analogues for further experimental investigations.
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Affiliation(s)
- Ali Akbar Alizadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Jafari
- Department of Medicinal Chemistry, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Pharmacy, Near East University, Nicosia, Turkey
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25
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Dong Y, Li Y, Zhang C, Chen H, Liu L, Chen S. Effects of SW033291 on the myogenesis of muscle-derived stem cells and muscle regeneration. Stem Cell Res Ther 2020; 11:76. [PMID: 32085799 PMCID: PMC7035785 DOI: 10.1186/s13287-020-1574-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 01/17/2020] [Accepted: 01/27/2020] [Indexed: 12/15/2022] Open
Abstract
Background The unmet medical needs in repairing large muscle defects promote the development of tissue regeneration strategy. The use of bioactive molecules in combination with biomaterial scaffold has become an area of great interest. SW033291, a small-molecule inhibitor targeting 15-hydroxyprostaglandin dehydrogenase (15-PDGH) and subsequently elevating the production of prostaglandin E2 (PGE2), has been proved to accelerate the recovery and potentiate the regeneration of multiple tissues including the bone, liver, and colon. The limited understanding of the potential therapeutic effects on myogenesis motivated us to investigate the role of SW033291 in regulating muscle-derived stem cell (MDSC) myogenic differentiation and MDSC-mediated muscle regeneration. Methods The characteristics of rat MDSCs, including cell-specific markers and myogenic differentiation potential, were determined. MDSCs were incubated with SW033291 to evaluate PGE2 production and cytotoxicity. The effects of SW033291 on MDSC myogenic differentiation were assessed by quantitative real-time polymerase chain reaction (qPCR), western blot, and immunocytochemistry. The fibrin gel containing MDSCs and SW033291 was used for muscle regeneration in a tibialis anterior muscle defect model. Results Our data demonstrated that MDSCs were well-tolerated to SW033291 and treatment with SW033291 significantly promoted the production of PGE2 by MDSCs. In vitro analysis showed that SW033291 enhanced the myogenic differentiation and myotube formation by upregulating a series of myogenic markers. Additionally, the activation of PI3K/Akt pathway was involved in the mechanism underlying these promotive effects. Then, in situ casting of fibrin gel containing MDSCs and SW033291 was used to repair the tibialis anterior muscle defect; the addition of SW033291 significantly promoted myofiber formation within the defect region with mild immune response, less fibrosis, and sufficient vascularization. Conclusion SW033291 acted as a positive regulator of MDSC myogenic differentiation, and incorporating the compound with MDSCs in fibrin gel could serve as an effective method to repair large skeletal muscle defects.
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Affiliation(s)
- Yuanqiang Dong
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Yuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Chuan Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Haibin Chen
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Lijia Liu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
| | - Simeng Chen
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
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26
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Koledova Z, Sumbal J, Rabata A, de La Bourdonnaye G, Chaloupkova R, Hrdlickova B, Damborsky J, Stepankova V. Fibroblast Growth Factor 2 Protein Stability Provides Decreased Dependence on Heparin for Induction of FGFR Signaling and Alters ERK Signaling Dynamics. Front Cell Dev Biol 2019; 7:331. [PMID: 31921844 PMCID: PMC6924264 DOI: 10.3389/fcell.2019.00331] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 11/27/2019] [Indexed: 12/11/2022] Open
Abstract
Fibroblast growth factor 2 (FGF2) plays important roles in tissue development and repair. Using heparan sulfates (HS)/heparin as a cofactor, FGF2 binds to FGF receptor (FGFR) and induces downstream signaling pathways, such as ERK pathway, that regulate cellular behavior. In most cell lines, FGF2 signaling displays biphasic dose-response profile, reaching maximal response to intermediate concentrations, but weak response to high levels of FGF2. Recent reports demonstrated that the biphasic cellular response results from competition between binding of FGF2 to HS and FGFR that impinge upon ERK signaling dynamics. However, the role of HS/heparin in FGF signaling has been controversial. Several studies suggested that heparin is not required for FGF-FGFR complex formation and that the main role of heparin is to protect FGF from degradation. In this study, we investigated the relationship between FGF2 stability, heparin dependence and ERK signaling dynamics using FGF2 variants with increased thermal stability (FGF2-STABs). FGF2-STABs showed higher efficiency in induction of FGFR-mediated proliferation, lower affinity to heparin and were less dependent on heparin than wild-type FGF2 (FGF2-wt) for induction of FGFR-mediated mitogenic response. Interestingly, in primary mammary fibroblasts, FGF2-wt displayed a sigmoidal dose-response profile, while FGF2-STABs showed a biphasic response. Moreover, at low concentrations, FGF2-STABs induced ERK signaling more potently and displayed a faster dynamics of full ERK activation and higher amplitudes of ERK signaling than FGF2-wt. Our results suggest that FGF2 stability and heparin dependence are important factors in FGF-FGFR signaling complex assembly and ERK signaling dynamics.
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Affiliation(s)
- Zuzana Koledova
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia
| | - Jakub Sumbal
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia
| | - Anas Rabata
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Gabin de La Bourdonnaye
- Enantis, Brno, Czechia.,Loschmidt Laboratories, RECETOX and Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
| | - Radka Chaloupkova
- Enantis, Brno, Czechia.,Loschmidt Laboratories, RECETOX and Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
| | | | - Jiri Damborsky
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia.,Enantis, Brno, Czechia.,Loschmidt Laboratories, RECETOX and Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
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27
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Low Stability of Integrin-Binding Deficient Mutant of FGF1 Restricts Its Biological Activity. Cells 2019; 8:cells8080899. [PMID: 31443196 PMCID: PMC6721657 DOI: 10.3390/cells8080899] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/09/2019] [Accepted: 08/14/2019] [Indexed: 12/11/2022] Open
Abstract
Fibroblast growth factor 1 (FGF1) has been shown to interact with integrin αvβ3 through a specific binding site, involving Arg35 residue. The FGF1 mutant (R35E) with impaired integrin binding was found to be defective in its proliferative response, although it was still able to interact with FGF receptors (FGFR) and heparin and induce the activation of downstream signaling pathways. Here, we demonstrate that the lack of mitogenic potential of R35E mutant is directly caused by its decreased thermodynamic stability and susceptibility to proteolytic degradation. Introduction of three stabilizing mutations into R35E variant compensated the effect of destabilizing R35E mutation and restored the proliferation potential of FGF1. Moreover, the stabilized R35E variant regained both anti-apoptotic and wound healing activities, while remaining defective in binding to integrin αvβ3. Our results suggest that the thermodynamic stability and resistance to degradation, rather than the interaction with integrin are required for mitogenic response of FGF1.
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28
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Sun C, Liu M, Sun P, Yang M, Yates EA, Guo Z, Fernig DG. Sulfated polysaccharides interact with fibroblast growth factors and protect from denaturation. FEBS Open Bio 2019; 9:1477-1487. [PMID: 31271519 PMCID: PMC6668377 DOI: 10.1002/2211-5463.12696] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 06/26/2019] [Accepted: 07/03/2019] [Indexed: 01/08/2023] Open
Abstract
Fibroblast growth factors (FGFs) regulate embryonic development and homeostasis, including tissue and organ repair and specific aspects of metabolism. The basic FGF and acidic FGF, now known as FGF2 and FGF1, are widely used protein drugs for tissue repair. However, they are susceptible to denaturation at ambient temperatures and during long-time storage, which will reduce their biological activity. The interaction of FGFs with the sulfated domains of heparan sulfate and heparin is essential for their cellular signaling and stability. Therefore, we analyzed the interactions of FGF1 and FGF2 with four sulfated polysaccharides: heparin, dextran sulfate (DXS), λ-carrageenan, and chondroitin sulfate. The results of thermal stability and cell proliferation assays demonstrate that heparin, DXS, and λ-carrageenan bound to both FGFs and protected them from denaturation. Our results suggest heparin, DXS, and λ-carrageenan are potential formulation materials that bind and stabilize FGFs, and which may also potentiate their activity and control their delivery.
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Affiliation(s)
- Changye Sun
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - Mengxin Liu
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - Panwen Sun
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - Mingming Yang
- Department of CardiologySchool of MedicineAffiliated Zhongda HospitalSoutheast UniversityNanjingChina
| | - Edwin A. Yates
- Department of BiochemistryInstitute of Integrative BiologyUniversity of LiverpoolUK
| | - Zhikun Guo
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - David G. Fernig
- Department of BiochemistryInstitute of Integrative BiologyUniversity of LiverpoolUK
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29
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Engineered biomaterials to mitigate growth factor cost in cell biomanufacturing. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2019. [DOI: 10.1016/j.cobme.2018.12.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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30
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Nakayama KH, Shayan M, Huang NF. Engineering Biomimetic Materials for Skeletal Muscle Repair and Regeneration. Adv Healthc Mater 2019; 8:e1801168. [PMID: 30725530 PMCID: PMC6589032 DOI: 10.1002/adhm.201801168] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/21/2018] [Indexed: 11/12/2022]
Abstract
Although skeletal muscle is highly regenerative following injury or disease, endogenous self-regeneration is severely impaired in conditions of volume traumatic muscle loss. Consequently, tissue engineering approaches are a promising means to regenerate skeletal muscle. Biological scaffolds serve as not only structural support for the promotion of cellular ingrowth but also impart potent modulatory signaling cues that may be beneficial for tissue regeneration. In this work, the progress of tissue engineering approaches for skeletal muscle engineering and regeneration is overviewed, with a focus on the techniques to create biomimetic engineered tissue using extracellular cues. These factors include mechanical and electrical stimulation, geometric patterning, and delivery of growth factors or other bioactive molecules. The progress of evaluating the therapeutic efficacy of these approaches in preclinical models of muscle injury is further discussed.
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Affiliation(s)
- Karina H Nakayama
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- The Stanford Cardiovascular Institute, Stanford University, Stanford, CA, 94305, USA
| | - Mahdis Shayan
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- The Stanford Cardiovascular Institute, Stanford University, Stanford, CA, 94305, USA
| | - Ngan F Huang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- The Stanford Cardiovascular Institute, Stanford University, Stanford, CA, 94305, USA
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31
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Ho WKW, Freem L, Zhao D, Painter KJ, Woolley TE, Gaffney EA, McGrew MJ, Tzika A, Milinkovitch MC, Schneider P, Drusko A, Matthäus F, Glover JD, Wells KL, Johansson JA, Davey MG, Sang HM, Clinton M, Headon DJ. Feather arrays are patterned by interacting signalling and cell density waves. PLoS Biol 2019; 17:e3000132. [PMID: 30789897 PMCID: PMC6383868 DOI: 10.1371/journal.pbio.3000132] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 01/17/2019] [Indexed: 12/30/2022] Open
Abstract
Feathers are arranged in a precise pattern in avian skin. They first arise during development in a row along the dorsal midline, with rows of new feather buds added sequentially in a spreading wave. We show that the patterning of feathers relies on coupled fibroblast growth factor (FGF) and bone morphogenetic protein (BMP) signalling together with mesenchymal cell movement, acting in a coordinated reaction-diffusion-taxis system. This periodic patterning system is partly mechanochemical, with mechanical-chemical integration occurring through a positive feedback loop centred on FGF20, which induces cell aggregation, mechanically compressing the epidermis to rapidly intensify FGF20 expression. The travelling wave of feather formation is imposed by expanding expression of Ectodysplasin A (EDA), which initiates the expression of FGF20. The EDA wave spreads across a mesenchymal cell density gradient, triggering pattern formation by lowering the threshold of mesenchymal cells required to begin to form a feather bud. These waves, and the precise arrangement of feather primordia, are lost in the flightless emu and ostrich, though via different developmental routes. The ostrich retains the tract arrangement characteristic of birds in general but lays down feather primordia without a wave, akin to the process of hair follicle formation in mammalian embryos. The embryonic emu skin lacks sufficient cells to enact feather formation, causing failure of tract formation, and instead the entire skin gains feather primordia through a later process. This work shows that a reaction-diffusion-taxis system, integrated with mechanical processes, generates the feather array. In flighted birds, the key role of the EDA/Ectodysplasin A receptor (EDAR) pathway in vertebrate skin patterning has been recast to activate this process in a quasi-1-dimensional manner, imposing highly ordered pattern formation.
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Affiliation(s)
- William K. W. Ho
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Lucy Freem
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Debiao Zhao
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Kevin J. Painter
- School of Mathematical and Computer Sciences, Heriot-Watt University, Edinburgh, United Kingdom
| | - Thomas E. Woolley
- School of Mathematics, Cardiff University, Cathays, Cardiff, United Kingdom
| | - Eamonn A. Gaffney
- Mathematical Institute, University of Oxford, Oxford, United Kingdom
| | - Michael J. McGrew
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Athanasia Tzika
- Department of Genetics and Evolution, University of Geneva, Geneva, Switzerland
| | | | - Pascal Schneider
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Armin Drusko
- FIAS and Faculty of Biological Sciences, University of Frankfurt, Frankfurt, Germany
| | - Franziska Matthäus
- FIAS and Faculty of Biological Sciences, University of Frankfurt, Frankfurt, Germany
| | - James D. Glover
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Kirsty L. Wells
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Jeanette A. Johansson
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh, United Kingdom
| | - Megan G. Davey
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Helen M. Sang
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Michael Clinton
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Denis J. Headon
- Roslin Institute Chicken Embryology, Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
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32
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Kunova Bosakova M, Varecha M, Hampl M, Duran I, Nita A, Buchtova M, Dosedelova H, Machat R, Xie Y, Ni Z, Martin JH, Chen L, Jansen G, Krakow D, Krejci P. Regulation of ciliary function by fibroblast growth factor signaling identifies FGFR3-related disorders achondroplasia and thanatophoric dysplasia as ciliopathies. Hum Mol Genet 2019; 27:1093-1105. [PMID: 29360984 DOI: 10.1093/hmg/ddy031] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 01/09/2018] [Indexed: 11/13/2022] Open
Abstract
Cilia project from almost every cell integrating extracellular cues with signaling pathways. Constitutive activation of FGFR3 signaling produces the skeletal disorders achondroplasia (ACH) and thanatophoric dysplasia (TD), but many of the molecular mechanisms underlying these phenotypes remain unresolved. Here, we report in vivo evidence for significantly shortened primary cilia in ACH and TD cartilage growth plates. Using in vivo and in vitro methodologies, our data demonstrate that transient versus sustained activation of FGF signaling correlated with different cilia consequences. Transient FGF pathway activation elongated cilia, while sustained activity shortened cilia. FGF signaling extended primary cilia via ERK MAP kinase and mTORC2 signaling, but not through mTORC1. Employing a GFP-tagged IFT20 construct to measure intraflagellar (IFT) speed in cilia, we showed that FGF signaling affected IFT velocities, as well as modulating cilia-based Hedgehog signaling. Our data integrate primary cilia into canonical FGF signal transduction and uncover a FGF-cilia pathway that needs consideration when elucidating the mechanisms of physiological and pathological FGFR function, or in the development of FGFR therapeutics.
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Affiliation(s)
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Marek Hampl
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Ivan Duran
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Alexandru Nita
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Marcela Buchtova
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Hana Dosedelova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Radek Machat
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Yangli Xie
- Department of Rehabilitation Medicine, Third Military Medical University, Chongqing 400042, China
| | - Zhenhong Ni
- Department of Rehabilitation Medicine, Third Military Medical University, Chongqing 400042, China
| | - Jorge H Martin
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Lin Chen
- Department of Rehabilitation Medicine, Third Military Medical University, Chongqing 400042, China
| | - Gert Jansen
- Department of Cell Biology, Erasmus MC, 3000 CA Rotterdam, The Netherlands
| | - Deborah Krakow
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.,Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.,Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
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33
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Balek L, Buchtova M, Kunova Bosakova M, Varecha M, Foldynova-Trantirkova S, Gudernova I, Vesela I, Havlik J, Neburkova J, Turner S, Krzyscik MA, Zakrzewska M, Klimaschewski L, Claus P, Trantirek L, Cigler P, Krejci P. Nanodiamonds as “artificial proteins”: Regulation of a cell signalling system using low nanomolar solutions of inorganic nanocrystals. Biomaterials 2018; 176:106-121. [DOI: 10.1016/j.biomaterials.2018.05.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 03/31/2018] [Accepted: 05/19/2018] [Indexed: 12/14/2022]
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34
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Biggs LC, Mäkelä OJ, Myllymäki SM, Das Roy R, Närhi K, Pispa J, Mustonen T, Mikkola ML. Hair follicle dermal condensation forms via Fgf20 primed cell cycle exit, cell motility, and aggregation. eLife 2018; 7:36468. [PMID: 30063206 PMCID: PMC6107334 DOI: 10.7554/elife.36468] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 07/30/2018] [Indexed: 12/19/2022] Open
Abstract
Mesenchymal condensation is a critical step in organogenesis, yet the underlying molecular and cellular mechanisms remain poorly understood. The hair follicle dermal condensate is the precursor to the permanent mesenchymal unit of the hair follicle, the dermal papilla, which regulates hair cycling throughout life and bears hair inductive potential. Dermal condensate morphogenesis depends on epithelial Fibroblast Growth Factor 20 (Fgf20). Here, we combine mouse models with 3D and 4D microscopy to demonstrate that dermal condensates form de novo and via directional migration. We identify cell cycle exit and cell shape changes as early hallmarks of dermal condensate morphogenesis and find that Fgf20 primes these cellular behaviors and enhances cell motility and condensation. RNAseq profiling of immediate Fgf20 targets revealed induction of a subset of dermal condensate marker genes. Collectively, these data indicate that dermal condensation occurs via directed cell movement and that Fgf20 orchestrates the early cellular and molecular events. All mammal hair springs from hair follicles under the skin. These follicles sit in the dermis, beneath the outermost skin layer, the epidermis. In the embryo, hair follicles develop from unspecialized cells in two tissues, the epithelium and the mesenchyme, which will later develop into the dermis and epidermis, respectively. As development progresses, the cells of these tissues begin to cluster, and signals passing back and forth between the epithelium and mesenchyme instruct the cells what to do. In the mesenchyme, cells called fibroblasts squeeze up against their neighbors, forming patches called dermal condensates. These mature into so-called dermal papillae, which supply specific molecules called growth factors that regulate hair formation throughout lifetime. Fibroblasts in the developing skin respond to a signal from the epithelium called fibroblast growth factor 20 (Fgf20), but we do not yet understand its effects. It is possible that Fgf20 tells the cells to divide, forming clusters of daughter cells around their current location. Or, it could be that Fgf20 tells the cells to move, encouraging them to travel towards one another to form groups. To address this question, Biggs, Mäkelä et al. examined developing mouse skin grown in the laboratory. They traced cells marked with fluorescent tags to analyze their behavior as the condensates formed. This revealed that the Fgf20 signal acts as a rallying call, triggering fibroblast movement. The cells changed shape and moved towards one another, rather than dividing to create their own clusters. In fact, they switched off their own cell cycle as the condensates formed, halting their ability to divide. A technique called RNA sequencing revealed that Fgf20 also promotes the use of genes known to be active in dermal condensates. Dermal papillae control hair growth, and transplanting them under the skin can form new hair follicles. However, these cells lose this ability when grown in the laboratory. Understanding how they develop could be beneficial for future hair growth therapy. Further work could also address fundamental questions in embryology. Condensates of cells from the mesenchyme also precede the formation of limbs, bones, muscles and organs. Extending this work could help us to understand this critical developmental step.
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Affiliation(s)
- Leah C Biggs
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Otto Jm Mäkelä
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Satu-Marja Myllymäki
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Rishi Das Roy
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Katja Närhi
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Johanna Pispa
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Tuija Mustonen
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Marja L Mikkola
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
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35
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Dvorak P, Bednar D, Vanacek P, Balek L, Eiselleova L, Stepankova V, Sebestova E, Kunova Bosakova M, Konecna Z, Mazurenko S, Kunka A, Vanova T, Zoufalova K, Chaloupkova R, Brezovsky J, Krejci P, Prokop Z, Dvorak P, Damborsky J. Computer-assisted engineering of hyperstable fibroblast growth factor 2. Biotechnol Bioeng 2018; 115:850-862. [PMID: 29278409 DOI: 10.1002/bit.26531] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 12/10/2017] [Accepted: 12/18/2017] [Indexed: 02/03/2023]
Abstract
Fibroblast growth factors (FGFs) serve numerous regulatory functions in complex organisms, and their corresponding therapeutic potential is of growing interest to academics and industrial researchers alike. However, applications of these proteins are limited due to their low stability. Here we tackle this problem using a generalizable computer-assisted protein engineering strategy to create a unique modified FGF2 with nine mutations displaying unprecedented stability and uncompromised biological function. The data from the characterization of stabilized FGF2 showed a remarkable prediction potential of in silico methods and provided insight into the unfolding mechanism of the protein. The molecule holds a considerable promise for stem cell research and medical or pharmaceutical applications.
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Affiliation(s)
- Pavel Dvorak
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - David Bednar
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Pavel Vanacek
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Lukas Balek
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Livia Eiselleova
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Veronika Stepankova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Eva Sebestova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | | | - Zaneta Konecna
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Stanislav Mazurenko
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Antonin Kunka
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Tereza Vanova
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Karolina Zoufalova
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Radka Chaloupkova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jan Brezovsky
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Pavel Krejci
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Zbynek Prokop
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Petr Dvorak
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jiri Damborsky
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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36
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Balek L, Nemec P, Konik P, Kunova Bosakova M, Varecha M, Gudernova I, Medalova J, Krakow D, Krejci P. Proteomic analyses of signalling complexes associated with receptor tyrosine kinase identify novel members of fibroblast growth factor receptor 3 interactome. Cell Signal 2018; 42:144-154. [DOI: 10.1016/j.cellsig.2017.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/13/2017] [Accepted: 10/05/2017] [Indexed: 01/08/2023]
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37
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Gudernova I, Balek L, Varecha M, Kucerova JF, Kunova Bosakova M, Fafilek B, Palusova V, Uldrijan S, Trantirek L, Krejci P. Inhibitor repurposing reveals ALK, LTK, FGFR, RET and TRK kinases as the targets of AZD1480. Oncotarget 2017; 8:109319-109331. [PMID: 29312610 PMCID: PMC5752523 DOI: 10.18632/oncotarget.22674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 10/28/2017] [Indexed: 01/29/2023] Open
Abstract
Many tyrosine kinase inhibitors (TKIs) have failed to reach human use due to insufficient activity in clinical trials. However, the failed TKIs may still benefit patients if their other kinase targets are identified by providing treatment focused on syndromes driven by these kinases. Here, we searched for novel targets of AZD1480, an inhibitor of JAK2 kinase that recently failed phase two cancer clinical trials due to a lack of activity. Twenty seven human receptor tyrosine kinases (RTKs) and 153 of their disease-associated mutants were in-cell profiled for activity in the presence of AZD1480 using a newly developed RTK plasmid library. We demonstrate that AZD1480 inhibits ALK, LTK, FGFR1-3, RET and TRKA-C kinases and uncover a physical basis of this specificity. The RTK activity profiling described here facilitates inhibitor repurposing by enabling rapid and efficient identification of novel TKI targets in cells.
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Affiliation(s)
- Iva Gudernova
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic
| | - Lukas Balek
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | | | | | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Veronika Palusova
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic
| | - Stjepan Uldrijan
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
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38
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Dephosphorylation is the mechanism of fibroblast growth factor inhibition of guanylyl cyclase-B. Cell Signal 2017; 40:222-229. [PMID: 28964968 DOI: 10.1016/j.cellsig.2017.09.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/19/2017] [Accepted: 09/26/2017] [Indexed: 12/30/2022]
Abstract
Activating mutations in fibroblast growth factor receptor 3 (FGFR3) and inactivating mutations of guanylyl cyclase-B (GC-B, also called NPRB or NPR2) cause dwarfism. FGF exposure inhibits GC-B activity in a chondrocyte cell line, but the mechanism of the inactivation is not known. Here, we report that FGF exposure causes dephosphorylation of GC-B in rat chondrosarcoma cells, which correlates with a rapid, potent and reversible inhibition of C-type natriuretic peptide-dependent activation of GC-B. Cells expressing a phosphomimetic mutant of GC-B that cannot be inactivated by dephosphorylation because it contains glutamate substitutions for all known phosphorylation sites showed no decrease in GC-B activity in response to FGF. We conclude that FGF rapidly inactivates GC-B by a reversible dephosphorylation mechanism, which may contribute to the signaling network by which activated FGFR3 causes dwarfism.
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39
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Jafari B, Hamzeh-Mivehroud M, Moosavi-Movahedi AA, Dastmalchi S. Identification of Novel Single-Domain Antibodies against FGF7 Using Phage Display Technology. SLAS DISCOVERY 2017; 23:193-201. [DOI: 10.1177/2472555217728520] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Fibroblast growth factor 7 (FGF7) is a member of the fibroblast growth factor (FGF) family of proteins. FGF7 is of stromal origin and produces a paracrine effect on epithelial cells. In the current investigation, we aimed to identify new single-domain antibodies (sdAbs) against FGF7 using phage display technology. The vector harboring the codon-optimized DNA sequence for FGF7 protein was transformed into Escherichia coli BL21 (DE3) pLysS, and then the protein was expressed at the optimized condition. Enzyme-linked immunosorbent assay, circular dichroism spectropolarimetry, and in vitro scratch assay experiments were used to confirm the proper folding and functionality of the purified FGF7 protein. The purity of the produced FGF7 was 92%, with production yield of 3.5 mg/L of culture. Panning against the purified FGF7 was performed, and the identified single-domain antibodies showed significant affinity. Further investigation on one of the selected sdAb displaying phage clones showed concentration-dependent binding to FGF7. The selected sdAb can be used for developing novel tumor-suppressing agents where inhibition of FGF7 is required.
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Affiliation(s)
- Behzad Jafari
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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40
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Krzyscik M, Zakrzewska M, Sørensen V, Sokolowska-Wedzina A, Lobocki M, Swiderska KW, Krowarsch D, Wiedlocha A, Otlewski J. Cytotoxic Conjugates of Fibroblast Growth Factor 2 (FGF2) with Monomethyl Auristatin E for Effective Killing of Cells Expressing FGF Receptors. ACS OMEGA 2017; 2:3792-3805. [PMID: 30023704 PMCID: PMC6044718 DOI: 10.1021/acsomega.7b00116] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 06/28/2017] [Indexed: 06/08/2023]
Abstract
Antibody-drug conjugates (ADCs) are a new class of anticancer therapeutics that combine the selectivity of targeted treatment, ensured by monoclonal antibodies, with the potency of the cytotoxic agent. Here, we applied an analogous approach, but instead of an antibody, we used fibroblast growth factor 2 (FGF2). FGF2 is a natural ligand of fibroblast growth factor receptor 1 (FGFR1), a cell-surface receptor reported to be overexpressed in several types of tumors. We developed and characterized FGF2 conjugates containing a defined number of molecules of highly cytotoxic drug monomethyl auristatin E (MMAE). These conjugates effectively targeted FGFR1-expressing cells, were internalized upon FGFR1-mediated endocytosis, and, in consequence, revealed high cytotoxicity, which was clearly related to the FGFR1 expression level. Among the conjugates tested, the most potent was that bearing three MMAE molecules, showing that the cytotoxicity of protein-drug conjugates in vitro is directly dependent on drug loading.
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Affiliation(s)
- Mateusz
Adam Krzyscik
- Department
of Protein Engineering and Department of Protein Biotechnology, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Malgorzata Zakrzewska
- Department
of Protein Engineering and Department of Protein Biotechnology, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Vigdis Sørensen
- Department of Core Facilities and Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, 0379 Oslo, Norway
| | - Aleksandra Sokolowska-Wedzina
- Department
of Protein Engineering and Department of Protein Biotechnology, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Michal Lobocki
- Department
of Protein Engineering and Department of Protein Biotechnology, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Karolina Weronika Swiderska
- Department
of Protein Engineering and Department of Protein Biotechnology, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Daniel Krowarsch
- Department
of Protein Engineering and Department of Protein Biotechnology, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Antoni Wiedlocha
- Department of Core Facilities and Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, 0379 Oslo, Norway
| | - Jacek Otlewski
- Department
of Protein Engineering and Department of Protein Biotechnology, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383 Wroclaw, Poland
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41
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Bovine in vitro embryo production: the effects of fibroblast growth factor 10 (FGF10). J Assist Reprod Genet 2016; 34:383-390. [PMID: 28000057 DOI: 10.1007/s10815-016-0852-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 11/25/2016] [Indexed: 01/18/2023] Open
Abstract
PURPOSE In an attempt to improve in vitro embryo production, we investigated the effect of fibroblast growth factor 10 (FGF10) during in vitro maturation on the developmental capacity of bovine oocytes. MATERIAL AND METHODS Cumulus-oocyte complexes (COCs) were aspirated from follicles of 3-8 mm diameter. After selection, the COCs were matured in medium with or without 0.5 ng/mL of FGF10. The effect of FGF10 during in vitro maturation (IVM) on nuclear maturation kinetics and expansion of the cumulus cells was investigated. Oocyte competence was assessed by the production and development speed of embryos and the relative expression of genes associated with embryo quality. RESULTS FGF10 delayed the resumption of meiosis from 8 h onwards, but did not affect the percentage of oocytes reaching metaphase II, nor did it increase cumulus expansion at 22 h of maturation. We found no difference between treatments regarding embryo production, developmental speed, and gene expression. CONCLUSION In conclusion, the presence of FGF10 during IVM had no effect on embryo production, developmental speed, and gene expression.
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42
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Vernet E, Popa G, Pozdnyakova I, Rasmussen JE, Grohganz H, Giehm L, Jensen MH, Wang H, Plesner B, Nielsen HM, Jensen KJ, Berthelsen J, Sundström M, van de Weert M. Large-Scale Biophysical Evaluation of Protein PEGylation Effects: In Vitro Properties of 61 Protein Entities. Mol Pharm 2016; 13:1587-98. [DOI: 10.1021/acs.molpharmaceut.6b00049] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Erik Vernet
- Novo Nordisk A/S, 2880 Bagsværd, Denmark
- The
Novo Nordisk Foundation Center for Protein Research (NNF CPR), Faculty
of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gina Popa
- The
Novo Nordisk Foundation Center for Protein Research (NNF CPR), Faculty
of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Irina Pozdnyakova
- The
Novo Nordisk Foundation Center for Protein Research (NNF CPR), Faculty
of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jakob E. Rasmussen
- Department
of Chemistry, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Holger Grohganz
- Department
of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lise Giehm
- Department
of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Malene H. Jensen
- Department
of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Huabing Wang
- Department
of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Bitten Plesner
- Department
of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Hanne M. Nielsen
- Department
of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Knud J. Jensen
- Department
of Chemistry, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Jens Berthelsen
- Costerton
Biofilm center, Department for Immunology and Microbiology, Faculty
of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Michael Sundström
- The
Novo Nordisk Foundation Center for Protein Research (NNF CPR), Faculty
of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marco van de Weert
- Department
of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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43
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Neuron-derived FGF10 ameliorates cerebral ischemia injury via inhibiting NF-κB-dependent neuroinflammation and activating PI3K/Akt survival signaling pathway in mice. Sci Rep 2016; 6:19869. [PMID: 26813160 PMCID: PMC4728497 DOI: 10.1038/srep19869] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 12/18/2015] [Indexed: 12/19/2022] Open
Abstract
FGF10 is a member of fibroblast growth factors (FGFs). We previously showed that FGF10 protects neuron against oxygen-glucose deprivation injury in vitro; however, the effect of FGF10 in ischemic stroke in vivo is unknown. In the present study, we showed that FGF10 was mainly expressed in neurons but not astrocytes, and detected FGF10 in mouse cerebrospinal fluid. The FGF10 levels in neurons culture medium and cell lysate were much higher than those in astrocytes. FGF10 expression in brain tissue and FGF10 level in CSF were increased in mouse middle cerebral artery occlusion (MCAO) model. Administration of FGF10 into lateral cerebroventricle not only decreased MCAO-induced brain infarct volume and neurological deficit, but also reduced the number of TUNEL-positive cells and activities of Caspases. Moreover, FGF10 treatment depressed the triggered inflammatory factors (TNF-α and IL-6) and NF-κB signaling pathway, and increased phosphorylation of PI3K/Akt signaling pathway. Blockade of PI3K/Akt signaling pathway by wortmannin and Akt1/2-kinase inhibitor, partly compromised the neuroprotection of FGF10. However, blockade of PI3K/Akt signaling pathway did not impair the anti-inflammation action of FGF10. Collectively, our results demonstrate that neuron-derived FGF10 ameliorates cerebral ischemia injury via inhibiting NF-κB-dependent neuroinflammation and activating PI3K/Akt survival signaling pathway in mice.
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44
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Gudernova I, Vesela I, Balek L, Buchtova M, Dosedelova H, Kunova M, Pivnicka J, Jelinkova I, Roubalova L, Kozubik A, Krejci P. Multikinase activity of fibroblast growth factor receptor (FGFR) inhibitors SU5402, PD173074, AZD1480, AZD4547 and BGJ398 compromises the use of small chemicals targeting FGFR catalytic activity for therapy of short-stature syndromes. Hum Mol Genet 2015; 25:9-23. [PMID: 26494904 DOI: 10.1093/hmg/ddv441] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2015] [Indexed: 01/07/2023] Open
Abstract
Activating mutations in the fibroblast growth factor receptor 3 (FGFR3) cause the most common genetic form of human dwarfism, achondroplasia (ACH). Small chemical inhibitors of FGFR tyrosine kinase activity are considered to be viable option for treating ACH, but little experimental evidence supports this claim. We evaluated five FGFR tyrosine kinase inhibitors (TKIs) (SU5402, PD173074, AZD1480, AZD4547 and BGJ398) for their activity against FGFR signaling in chondrocytes. All five TKIs strongly inhibited FGFR activation in cultured chondrocytes and limb rudiment cultures, completely relieving FGFR-mediated inhibition of chondrocyte proliferation and maturation. In contrast, TKI treatment of newborn mice did not improve skeletal growth and had lethal toxic effects on the liver, lungs and kidneys. In cell-free kinase assays as well as in vitro and in vivo cell assays, none of the tested TKIs demonstrated selectivity for FGFR3 over three other FGFR tyrosine kinases. In addition, the TKIs exhibited significant off-target activity when screened against a panel of 14 unrelated tyrosine kinases. This was most extensive in SU5402 and AZD1480, which inhibited DDR2, IGF1R, FLT3, TRKA, FLT4, ABL and JAK3 with efficiencies similar to or greater than those for FGFR. Low target specificity and toxicity of FGFR TKIs thus compromise their use for treatment of ACH. Conceptually, different avenues of therapeutic FGFR3 targeting should be investigated.
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Affiliation(s)
- Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Iva Vesela
- Institute of Animal Physiology and Genetics AS CR, Brno, Czech Republic, Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Lukas Balek
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Marcela Buchtova
- Institute of Animal Physiology and Genetics AS CR, Brno, Czech Republic, Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Hana Dosedelova
- Institute of Animal Physiology and Genetics AS CR, Brno, Czech Republic, Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Michaela Kunova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jakub Pivnicka
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Iva Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic, Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Lucie Roubalova
- Department of Clinical Biochemistry, University Hospital, Olomouc, Czech Republic
| | - Alois Kozubik
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic, Department of Cytokinetics, Institute of Biophysics AS CR, Brno, Czech Republic and
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic, International Clinical Research Center, St Anne's University Hospital, Brno, Czech Republic
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