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KIAA0100 Modulates Cancer Cell Aggression Behavior of MDA-MB-231 through Microtubule and Heat Shock Proteins. Cancers (Basel) 2018; 10:cancers10060180. [PMID: 29867023 PMCID: PMC6025110 DOI: 10.3390/cancers10060180] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 12/25/2022] Open
Abstract
The KIAA0100 gene was identified in the human immature myeloid cell line cDNA library. Recent studies have shown that its expression is elevated in breast cancer and associated with more aggressive cancer types as well as poor outcomes. However, its cellular and molecular function is yet to be understood. Here we show that silencing KIAA0100 by siRNA in the breast cancer cell line MDA-MB-231 significantly reduced the cancer cells’ aggressive behavior, including cell aggregation, reattachment, cell metastasis and invasion. Most importantly, silencing the expression of KIAA0100 particularly sensitized the quiescent cancer cells in suspension culture to anoikis. Immunoprecipitation, mass spectrometry and immunofluorescence analysis revealed that KIAA0100 may play multiple roles in the cancer cells, including stabilizing microtubule structure as a microtubule binding protein, and contributing to MDA-MB-231 cells Anoikis resistance by the interaction with stress protein HSPA1A. Our study also implies that the interaction between KIAA0100 and HSPA1A may be targeted for new drug development to specifically induce anoikis cell death in the cancer cell.
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Gordon A, Kannan SK, Gousset K. A Novel Cell Fixation Method that Greatly Enhances Protein Identification in Microproteomic Studies Using Laser Capture Microdissection and Mass Spectrometry. Proteomics 2018; 18:e1700294. [PMID: 29579344 DOI: 10.1002/pmic.201700294] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 12/21/2017] [Indexed: 11/05/2022]
Abstract
Microproteomic studies have improved our knowledge of cell biology. Yet, with mass spectrometry (MS) analysis, accuracy can be lost for protein identification and quantification when using heterogeneous samples. Laser capture microdissection (LCM) allows for the enrichment of specific subsets of cells to study their proteome; however, sample fixation is necessary. Unfortunately, fixation hampers MS results due to protein cross-linking. The aim of this study was to identify both a fixation protocol and an extraction method that returns the best yield of proteins for downstream MS analysis, while preserving cellular structures. We compared glutaraldehyde (GLU), a common fixative to preserve cells, to dithiobispropionimidate (DTBP), a cleavable cross-linker. Our DTBP fixation/extraction protocol greatly increased the protein recovery. In fact, while 1000 GLU fixed cells returned only 159 unique protein hits, from 1464 unique peptides of 1994 unique collected spectra, 1000 DTBP fixed cells resulted in 567 unique collected protein hits, from 7542 unique peptides, of 10,401 unique collected spectra. That is, a 3.57-fold increase in protein hits, 5.15-fold increase in unique peptides, and a 5.22-fold increase in unique collected spectra. Overall, the novel protocol introduced here allows for a very efficient protein recovery and good sample quality for MS after sample collection using LCM.
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Affiliation(s)
- Ana Gordon
- Biology Department, California State University Fresno, 2555 East San Ramon Ave M/S SB73, Fresno, CA, 93740, USA
| | - Shravan Kumar Kannan
- Biology Department, California State University Fresno, 2555 East San Ramon Ave M/S SB73, Fresno, CA, 93740, USA
| | - Karine Gousset
- Biology Department, California State University Fresno, 2555 East San Ramon Ave M/S SB73, Fresno, CA, 93740, USA
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Sanami M, Sweeney I, Shtein Z, Meirovich S, Sorushanova A, Mullen AM, Miraftab M, Shoseyov O, O'Dowd C, Pandit A, Zeugolis DI. The influence of poly(ethylene glycol) ether tetrasuccinimidyl glutarate on the structural, physical, and biological properties of collagen fibers. J Biomed Mater Res B Appl Biomater 2015; 104:914-22. [DOI: 10.1002/jbm.b.33445] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/17/2015] [Accepted: 04/18/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Sanami
- Vornia Biomaterials Ltd.; Galway Ireland
- Institute of Materials Research and Innovation, University of Bolton; Bolton UK
| | - India Sweeney
- Vornia Biomaterials Ltd.; Galway Ireland
- Institute of Materials Research and Innovation, University of Bolton; Bolton UK
| | - Zvi Shtein
- Vornia Biomaterials Ltd.; Galway Ireland
- Robert H. Smith Faculty of Agriculture; Food and Environment; The Hebrew University of Jerusalem; Jerusalem Israel
| | - Sigal Meirovich
- Vornia Biomaterials Ltd.; Galway Ireland
- Robert H. Smith Faculty of Agriculture; Food and Environment; The Hebrew University of Jerusalem; Jerusalem Israel
| | - Anna Sorushanova
- Regenerative; Modular and Developmental Engineering Laboratory (REMODEL); Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- CURAM-Centre for Research in Medical Devices, Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
| | | | - Mohsen Miraftab
- Vornia Biomaterials Ltd.; Galway Ireland
- Institute of Materials Research and Innovation, University of Bolton; Bolton UK
| | - Oded Shoseyov
- Robert H. Smith Faculty of Agriculture; Food and Environment; The Hebrew University of Jerusalem; Jerusalem Israel
| | | | - Abhay Pandit
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- CURAM-Centre for Research in Medical Devices, Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Dimitrios I. Zeugolis
- Regenerative; Modular and Developmental Engineering Laboratory (REMODEL); Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- CURAM-Centre for Research in Medical Devices, Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
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Kim YH, Son SR, Sarkar SK, Lee BT. The effects of dimethyl 3,3'-dithiobispropionimidate di-hydrochloride cross-linking of collagen and gelatin coating on porous spherical biphasic calcium phosphate granules. J Biomater Appl 2014; 29:386-98. [PMID: 24733775 DOI: 10.1177/0885328214530483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Collagen- and gelatin-coated porous spherical granule was prepared by slurry dripping process using biphasic calcium phosphate powder. The coating was stabilized by cross-linking with dimethyl 3,3'-dithiobispropionimidate di-hydrogenchloride (DTBP). Afer DTBP cross-linking, the nanostructure of collagen- and gelatin-coated surfaces was changed from smooth to fibrous and net-like structure. Excellent cross-linking of the coating was seen as indicated by the differential scanning calorimetry thermogram and the Fourier transform infrared spectroscopy spectra. After cross-linking the relative intensities of the Fourier transform infrared spectroscopy peaks were decreased and amide bands were shifted to the left. The interaction of gelatin with DTBP cross-linking agent was stronger than that with collagen according to differential scanning calorimetry and Fourier transform infrared spectroscopy results. The compressive strength of the granular bone substitutes increased significantly after the coating process and gelatin coated biphasic calcium phosphate granules showed highest value at 3.68 MPa after cross-linking. Porosity was greater than 63% and did not change significantly with coating. Biocompatibility investigation by in vitro and in vivo showed that the coating improved the cell proliferation marginally. However, the cross-linking process did not jeopardize the excellent biocompatibility of collagen and gelatin. The in vivo study confirms better bone formation behavior of the cross-linked gelatin and collagen coated samples investigated for 8 weeks in vivo.
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Affiliation(s)
- Yang-Hee Kim
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - So-Ra Son
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Swapan Kumar Sarkar
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
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Park S, Kim SH, Lim HG, Lim C, Kim YJ. The Anti-calcification Effect of Dithiobispropionimidate, Carbodiimide and Ultraviolet Irradiation Cross-linking Compared to Glutaraldehyde in Rabbit Implantation Models. THE KOREAN JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY 2013; 46:1-13. [PMID: 23424053 PMCID: PMC3573159 DOI: 10.5090/kjtcs.2013.46.1.1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/31/2012] [Accepted: 08/31/2012] [Indexed: 11/16/2022]
Abstract
Background Glutaraldehyde (GA) is a widely used cross-linking agent for improving mechanical properties and resistance to enzymatic degradation of collagenous tissue, but it has several drawbacks such as calcification and cytotoxicity. The aim of this study was to find the alternative effective cross-linking methods to GA. Materials and Methods Bovine pericardium was processed with GA with ethanol+octanol and glycine detoxification, and polyethylene glycol (PG) space filler, dimethyl 3,3'-dithiobispropionimidate (DTBP), 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) treatment, and the physical fixation of ultraviolet irradiation were done. The biologic material properties of variously treated pericardial tissues were assessed by biochemical, mechanical and histological tests. Treated pericardial tissues were also implanted subcutaneously or intramuscularly into the rabbit for 10 weeks to assess the xenoreactive antibody response of immunoglobulin G and M, their anti-calcification effect. Results The biochemical and mechanical properties of EDC fixed pericardial tissues were comparable to the GA fixed tissue. The cytotoxicity was lowest in space filler treated GA fixed group. In rabbit subcutaneous or intramuscular implantation models, decellularization, space filler, EDC treatment group showed significantly lower calcium content than GA only and DTBP treatment group (p<0.05, analysis of variance). The titer of anti Galα1-3Galβ1-4GlcNAc-R antibodies did not change in the postimplantation serial enzyme-linked immunosorbent assay. Hematoxylin and eosin and von Kossa staining showed that decellularization, space filler, EDC, and ultraviolet treatment had less inflammatory cell infiltration and calcium deposits. Conclusion The decellularization process, PG filler, and EDC treatments are good alternative cross-linking methods compared to GA only fixation and primary amine of DTBP treatment for cardiovascular xenograft preservation in terms of the collagen cross-linking stability and in vivo anti-calcification effects.
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Affiliation(s)
- Samina Park
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Korea
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Satyam A, Subramanian GS, Raghunath M, Pandit A, Zeugolis DI. In vitroevaluation of Ficoll-enriched and genipin-stabilised collagen scaffolds. J Tissue Eng Regen Med 2012; 8:233-41. [DOI: 10.1002/term.1522] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 02/14/2012] [Accepted: 03/08/2012] [Indexed: 01/08/2023]
Affiliation(s)
- A. Satyam
- Network of Excellence for Functional Biomaterials; National University of Ireland Galway; Galway Ireland
- Department of Mechanical & Biomedical Engineering; National University of Ireland Galway; Galway Ireland
| | - G. S. Subramanian
- Tissue Modulation Laboratory; National University of Singapore; Singapore
- Division of Bioengineering, Faculty of Engineering; National University of Singapore; Singapore
| | - M. Raghunath
- Tissue Modulation Laboratory; National University of Singapore; Singapore
- Division of Bioengineering, Faculty of Engineering; National University of Singapore; Singapore
| | - A. Pandit
- Network of Excellence for Functional Biomaterials; National University of Ireland Galway; Galway Ireland
| | - D. I. Zeugolis
- Network of Excellence for Functional Biomaterials; National University of Ireland Galway; Galway Ireland
- Department of Mechanical & Biomedical Engineering; National University of Ireland Galway; Galway Ireland
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Zeugolis DI, Li B, Lareu RR, Chan CK, Raghunath M. Collagen solubility testing, a quality assurance step for reproducible electro-spun nano-fibre fabrication. A technical note. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 19:1307-17. [DOI: 10.1163/156856208786052344] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- D. I. Zeugolis
- a Tissue Modulation Laboratory, National University of Singapore, 117510, Singapore; National University of Singapore Tissue Engineering Programme (NUSTEP), National University of Singapore, 117510, Singapore; Division of Bioengineering, Faculty of Engineering, National University of Singapore, 117576, Singapore; Immunology Programme, Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, 117456, Singapore
| | - B. Li
- b Division of Bioengineering, Faculty of Engineering, National University of Singapore, 117576, Singapore; National University of Singapore Science and Nanobiotechnoloy Initiative (NUSSNI), National University of Singapore, 117576, Singapore
| | - R. R. Lareu
- c Tissue Modulation Laboratory, National University of Singapore, 117510, Singapore; National University of Singapore Tissue Engineering Programme (NUSTEP), National University of Singapore, 117510, Singapore; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
| | - C. K. Chan
- d Division of Bioengineering, Faculty of Engineering, National University of Singapore, 117576, Singapore; National University of Singapore Science and Nanobiotechnoloy Initiative (NUSSNI), National University of Singapore, 117576, Singapore; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
| | - M. Raghunath
- e Tissue Modulation Laboratory, National University of Singapore, 117510, Singapore; Division of Bioengineering, Faculty of Engineering, National University of Singapore, 117576, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
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Ward J, Kelly J, Wang W, Zeugolis DI, Pandit A. Amine functionalization of collagen matrices with multifunctional polyethylene glycol systems. Biomacromolecules 2010; 11:3093-101. [PMID: 20942484 DOI: 10.1021/bm100898p] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A method to functionalize collagen-based biomaterials with free amine groups was established in an attempt to improve their potential for tethering of bioactive molecules. Collagen sponges were incorporated with amine-terminated multifunctional polyethylene glycol (PEG) derivatives after N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide and N-hydroxysuccinimide (EDC/NHS) cross-linking. The extent of the incorporation of different amounts and different numbers of active moieties of amine-terminated PEG systems into the collagen scaffolds was evaluated using ninhydrin assay, Fourier transform infrared spectrophotometry (FTIR), collagenase degradation assay, denaturation temperature measurements, and in vitro cell studies. A 3% 8-arm amine-terminated PEG was found to be the minimum required effective concentration to functionalize EDC/NHS stabilized collagen scaffolds. EDC/NHS stabilized scaffolds treated with 3% 8-arm amine-terminated PEG exhibited significantly improved denaturation temperature and resistance to collagenase degradation over non-cross-linked scaffolds (p < 0.002). Biological evaluation using 3T3 cells demonstrated that the produced scaffolds facilitated maintenance of the cells' morphology, metabolic activity, and ability to proliferate in vitro. Overall, our results indicate that amine-terminated PEG systems can be used as means to enhance the functionality of collagenous structures.
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Affiliation(s)
- John Ward
- Department of Plastic and Reconstructive Surgery, University Hospital of Galway, Galway, Ireland, and Network of Excellence for Functional Biomaterials (NFB), National University of Ireland, Galway (NUI Galway), Galway, Ireland
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Fiuza M, Letek M, Leiba J, Villadangos AF, Vaquera J, Zanella-Cléon I, Mateos LM, Molle V, Gil JA. Phosphorylation of a novel cytoskeletal protein (RsmP) regulates rod-shaped morphology in Corynebacterium glutamicum. J Biol Chem 2010; 285:29387-97. [PMID: 20622015 DOI: 10.1074/jbc.m110.154427] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Corynebacteria grow by wall extension at the cell poles, with DivIVA being an essential protein orchestrating cell elongation and morphogenesis. DivIVA is considered a scaffolding protein able to recruit other proteins and enzymes involved in polar peptidoglycan biosynthesis. Partial depletion of DivIVA induced overexpression of cg3264, a previously uncharacterized gene that encodes a novel coiled coil-rich protein specific for corynebacteria and a few other actinomycetes. By partial depletion and overexpression of Cg3264, we demonstrated that this protein is an essential cytoskeletal element needed for maintenance of the rod-shaped morphology of Corynebacterium glutamicum, and it was therefore renamed RsmP (rod-shaped morphology protein). RsmP forms long polymers in vitro in the absence of any cofactors, thus resembling eukaryotic intermediate filaments. We also investigated whether RsmP could be regulated post-translationally by phosphorylation, like eukaryotic intermediate filaments. RsmP was phosphorylated in vitro by the PknA protein kinase and to a lesser extent by PknL. A mass spectrometric analysis indicated that phosphorylation exclusively occurred on a serine (Ser-6) and two threonine (Thr-168 and Thr-211) residues. We confirmed that mutagenesis to alanine (phosphoablative protein) totally abolished PknA-dependent phosphorylation of RsmP. Interestingly, when the three residues were converted to aspartic acid, the phosphomimetic protein accumulated at the cell poles instead of making filaments along the cell, as observed for the native or phosphoablative RsmP proteins, indicating that phosphorylation of RsmP is necessary for directing cell growth at the cell poles.
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Affiliation(s)
- Maria Fiuza
- Departamento de Biología Molecular, Area de Microbiología, Facultad de Biología, Universidad de León, León 24071, Spain
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Adekogbe I, Ghanem A. Fabrication and characterization of DTBP-crosslinked chitosan scaffolds for skin tissue engineering. Biomaterials 2005; 26:7241-50. [PMID: 16011846 DOI: 10.1016/j.biomaterials.2005.05.043] [Citation(s) in RCA: 127] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Chitosan, the deacetylated derivative of chitin, is a promising scaffold material for skin tissue engineering applications. It is biocompatible and biodegradable, and the degradation products are resorbable. However, the rapid degradation of chitosan and its low mechanical strength are concerns that may limit its use. In this study, chitosan with 80%, 90% and 100% degree of deacetylation (DDA) was crosslinked with dimethyl 3-3, dithio bis' propionimidate (DTBP) and compared to uncrosslinked scaffolds. The scaffolds were characterized with respect to important tissue engineering properties. The tensile strength of scaffolds made from 100% DDA chitosan was significantly higher than for scaffolds made from 80% and 90% DDA chitosan. Crosslinking of scaffolds with DTBP increased the tensile strength. Crosslinking with DTBP had no significant effect on water vapour transmission rate (WVTR) or water absorption but had significant effect on the pore size and porosity of the samples. All samples showed a WVTR and pore size distribution suitable for skin tissue engineering; however, the water absorption and porosity were lower than the optimal values for skin tissue engineering. The biodegradation rate of scaffolds crosslinked with DTBP and glutaraldehyde (GTA) were reduced while no significant effect was observed in biodegradation of the samples made from 100% DDA chitosan whether crosslinked or uncrosslinked after 24 days of degradation.
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Affiliation(s)
- Iyabo Adekogbe
- Department of Chemical Engineering, Dalhousie University, Halifax, Nova Scotia, Canada B3J 2x4
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