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Izumiya M, Haniu M, Ueda K, Ishida H, Ma C, Ideta H, Sobajima A, Ueshiba K, Uemura T, Saito N, Haniu H. Evaluation of MC3T3-E1 Cell Osteogenesis in Different Cell Culture Media. Int J Mol Sci 2021; 22:ijms22147752. [PMID: 34299372 PMCID: PMC8304275 DOI: 10.3390/ijms22147752] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 11/16/2022] Open
Abstract
Many biomaterials have been evaluated using cultured cells. In particular, osteoblast-like cells are often used to evaluate the osteocompatibility, hard-tissue-regeneration, osteoconductive, and osteoinductive characteristics of biomaterials. However, the evaluation of biomaterial osteogenesis-inducing capacity using osteoblast-like cells is not standardized; instead, it is performed under laboratory-specific culture conditions with different culture media. However, the effect of different media conditions on bone formation has not been investigated. Here, we aimed to evaluate the osteogenesis of MC3T3-E1 cells, one of the most commonly used osteoblast-like cell lines for osteogenesis evaluation, and assayed cell proliferation, alkaline phosphatase activity, expression of osteoblast markers, and calcification under varying culture media conditions. Furthermore, the various media conditions were tested in uncoated plates and plates coated with collagen type I and poly-L-lysine, highly biocompatible molecules commonly used as pseudobiomaterials. We found that the type of base medium, the presence or absence of vitamin C, and the freshness of the medium may affect biomaterial regeneration. We posit that an in vitro model that recapitulates in vivo bone formation should be established before evaluating biomaterials.
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Affiliation(s)
- Makoto Izumiya
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
- Biomedical Engineering Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
| | - Miyu Haniu
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
| | - Katsuya Ueda
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
- Biomedical Engineering Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
| | - Haruka Ishida
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
- Biomedical Engineering Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
| | - Chuang Ma
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
- Biomedical Engineering Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
| | - Hirokazu Ideta
- Biomedical Engineering Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
- Department of Orthopaedic Surgery, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
| | - Atsushi Sobajima
- Department of Orthopaedic Surgery, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
- Department of Orthopedics (Lower Limbs), Social Medical Care Corporation Hosei-kai Marunouchi Hospital, 1-7-45 Nagisa, Matsumoto, Nagano 390-8601, Japan
| | - Koki Ueshiba
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
- Biomedical Engineering Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
| | - Takeshi Uemura
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
- Biomedical Engineering Division, Graduate School of Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Naoto Saito
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
| | - Hisao Haniu
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.I.); (M.H.); (K.U.); (H.I.); (C.M.); (K.U.); (T.U.); (N.S.)
- Biomedical Engineering Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan;
- Correspondence: ; Tel.: +81-263-37-3555
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Souza ATP, Lopes HB, Oliveira FS, Weffort D, Freitas GP, Adolpho LF, Fernandes RR, Rosa AL, Beloti MM. The extracellular matrix protein Agrin is expressed by osteoblasts and contributes to their differentiation. Cell Tissue Res 2021; 386:335-347. [PMID: 34223979 DOI: 10.1007/s00441-021-03494-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 06/21/2021] [Indexed: 11/25/2022]
Abstract
The extracellular matrix protein Agrin has been detected in chondrocytes and endosteal osteoblasts but its function in osteoblast differentiation has not been investigated yet. Thus, it is possible that Agrin contributes to osteoblast differentiation and, due to Agrin and wingless-related integration site (Wnt) sharing the same receptor, transmembrane low-density lipoprotein receptor-related protein 4 (Lrp4), and the crosstalk between Wnt and bone morphogenetic protein (BMP) signalling, both pathways could be involved in this Agrin-mediated osteoblast differentiation. Confirming this, Agrin and its receptors Lrp4 and α-dystroglycan (Dag1) were expressed during differentiation of osteoblasts from three different sources. Moreover, the disruption of Agrin impaired the expression of its receptors and osteoblast differentiation, and the treatment with recombinant Agrin slightly increase this process. In addition, whilst Agrin knockdown downregulated the expression of genes related to Wnt and BMP signalling pathways, the addition of Agrin had no effect on these genes. Altogether, these data uncover the contribution of Agrin to osteoblast differentiation and suggest that, at least in part, an Agrin-Wnt-BMP circuit is involved in this process. This makes Agrin a candidate as target for developing new therapeutic strategies to treat bone-related diseases and injuries.
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Affiliation(s)
| | - Helena Bacha Lopes
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Fabiola Singaretti Oliveira
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Denise Weffort
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Gileade Pereira Freitas
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Leticia Faustino Adolpho
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Roger Rodrigo Fernandes
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Adalberto Luiz Rosa
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Marcio Mateus Beloti
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Shenkman M, Geva M, Gershoni-Emek N, Hayden MR, Lederkremer GZ. Pridopidine reduces mutant huntingtin-induced endoplasmic reticulum stress by modulation of the Sigma-1 receptor. J Neurochem 2021; 158:467-481. [PMID: 33871049 DOI: 10.1111/jnc.15366] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 10/18/2020] [Accepted: 04/12/2021] [Indexed: 02/06/2023]
Abstract
The endoplasmic reticulum (ER)-localized Sigma-1 receptor (S1R) is neuroprotective in models of neurodegenerative diseases, among them Huntington disease (HD). Recent clinical trials in HD patients and preclinical studies in cellular and mouse HD models suggest a therapeutic potential for the high-affinity S1R agonist pridopidine. However, the molecular mechanisms of the cytoprotective effect are unclear. We have previously reported strong induction of ER stress by toxic mutant huntingtin (mHtt) oligomers, which is reduced upon sequestration of these mHtt oligomers into large aggregates. Here, we show that pridopidine significantly ameliorates mHtt-induced ER stress in cellular HD models, starting at low nanomolar concentrations. Pridopidine reduced the levels of markers of the three branches of the unfolded protein response (UPR), showing the strongest effects on the PKR-like endoplasmic reticulum kinase (PERK) branch. The effect is S1R-dependent, as it is abolished in cells expressing mHtt in which the S1R was deleted using CRISPR/Cas9 technology. mHtt increased the level of the detergent-insoluble fraction of S1R, suggesting a compensatory cellular mechanism that responds to increased ER stress. Pridopidine further enhanced the levels of insoluble S1R, suggesting the stabilization of activated S1R oligomers. These S1R oligomeric species appeared in ER-localized patches, and not in the mitochondria-associated membranes nor the ER-derived quality control compartment. The colocalization of S1R with the chaperone BiP was significantly reduced by mHtt, and pridopidine restored this colocalization to normal, unstressed levels. Pridopidine increased toxic oligomeric mHtt recruitment into less toxic large sodium dodecyl sulfate-insoluble aggregates, suggesting that this in turn reduces ER stress and cytotoxicity.
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Affiliation(s)
- Marina Shenkman
- The Shmunis School of Biomedicine and Cancer Research, Cell Biology Division, George Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Michal Geva
- Prilenia Therapeutics Development LTD, Herzliya, Israel
| | | | | | - Gerardo Z Lederkremer
- The Shmunis School of Biomedicine and Cancer Research, Cell Biology Division, George Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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Lee SH, Kim M, Park MH. Diphlorethohydroxycamalol isolated from Ishige okamurae prevents H 2O 2-induced oxidative damage via BMP2/Runx2 signaling in osteoblastic MC3T3-E1 cells. Fitoterapia 2021; 152:104921. [PMID: 33984434 DOI: 10.1016/j.fitote.2021.104921] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 12/20/2022]
Abstract
Accumulating evidence has shown an association between osteoporosis and oxidative damage. In the present study, the protective effects of diphlorethohydroxycarmalol (DPHC) isolated from the brown algae Ishige okamurae against H2O2-induced oxidative damage via bone morphogenetic protein 2 (BMP2)/ runt-related transcription factor 2 (Runx2) signaling were investigated using MC3T3-E1 osteoblastic cells. DPHC counteracted the reduction in cell viability caused by H2O2 exposure and protected against H2O2-induced dysfunction, demonstrated by improved cellular alkaline phosphatase (ALP) activity and calcium deposition. In addition, treatment with 0.05-0.2 mM DPHC elevated the protein expression of osteoblast differentiation factors type 1 collagen, ALP, p-Smad1/5, Osterix, BMP2, and Runx2, in response to H2O2-induced oxidative damage. Importantly, DPHC decreased the expression levels of receptor activator of nuclear factor kappa-B ligand, which promotes bone resorption, and inhibited the H2O2-induced generation of reactive oxygen species. Taken together, the results suggest that DPHC counteracts the effects of oxidative stress in osteoblastic cells and has the potential to be effective in preventing and alleviating osteoporosis.
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Affiliation(s)
- Seung-Hong Lee
- Department of Pharmaceutical Engineering, Soonchunhyang University, Asan 31538, Republic of Korea
| | - Mihyang Kim
- Department of Food and Nutrition, College of Medical and Life Science, Silla University, Busan 46958, Republic of Korea
| | - Mi Hwa Park
- Department of Food and Nutrition, College of Medical and Life Science, Silla University, Busan 46958, Republic of Korea.
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Kang TY, Seo JY, Ryu JH, Kim KM, Kwon JS. Improvement of the mechanical and biological properties of bioactive glasses by the addition of zirconium oxide (ZrO 2 ) as a synthetic bone graft substitute. J Biomed Mater Res A 2021; 109:1196-1208. [PMID: 33012133 DOI: 10.1002/jbm.a.37113] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/27/2020] [Accepted: 10/02/2020] [Indexed: 11/08/2022]
Abstract
In this study, mechanical properties of bioactive glass (BAG) synthetic bone graft substitute was improved by containing ZrO2 (ZrO2 -BAG), while maintaining advantageous biological properties of BAG such as osteoinductive and osteoconductive properties. The ZrO2 -BAG was produced by adding ZrO2 in the following proportions to replace Na2 O in 45S5 BAG: 1% (Zr1-BAG), 3% (Zr3-BAG), 6% (Zr6-BAG), and 12% (Zr12-BAG). Properties including XRD, XPS, SEM, DSC, fracture toughness, and Vickers microhardness were evaluated. To assess the biological properties, Ca/P apatite formation, ion release, degradation rate, cell proliferation, ALP activity (ALP), and alizarin red S staining assay (ARS) were evaluated. Also, expression of osteogenic differentiation markers, Osteopontin (OPN), confirmed by immunofluorescence staining. Finally, an in vivo test was carried out to by implanting ZrO2 -BAG into the subcutaneous tissue of rats. The results of each test were statistically analyzed with one-way ANOVA followed by Tukey's post hoc statistical test. Amorphous ZrO2 -BAG was successfully produced with increased mechanical properties as the ZrO2 content was increased. Additionally, ZrO2 -BAG exhibited a slower ion release and degradation rate compare to BAG without ZrO2 . Bioactivity of ZrO2 -BAG was confirmed with apatite layer formed on the surface, significantly higher proliferation rate and significantly enhanced ALP and the degree of ARS of the cells compare to respective controls. The tissue reactions observed in the in vivo study showed neo-formed vessels after implantation of ZrO2 -BAG.
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Affiliation(s)
- Tae-Yun Kang
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ji-Young Seo
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jeong-Hyun Ryu
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
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56
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Hao Y, Hao S, Andersen-Nissen E, Mauck WM, Zheng S, Butler A, Lee MJ, Wilk AJ, Darby C, Zager M, Hoffman P, Stoeckius M, Papalexi E, Mimitou EP, Jain J, Srivastava A, Stuart T, Fleming LM, Yeung B, Rogers AJ, McElrath JM, Blish CA, Gottardo R, Smibert P, Satija R. Integrated analysis of multimodal single-cell data. Cell 2021; 184:3573-3587.e29. [PMID: 34062119 PMCID: PMC8238499 DOI: 10.1016/j.cell.2021.04.048] [Citation(s) in RCA: 4386] [Impact Index Per Article: 1462.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/03/2021] [Accepted: 04/28/2021] [Indexed: 02/08/2023]
Abstract
The simultaneous measurement of multiple modalities represents an exciting frontier for single-cell genomics and necessitates computational methods that can define cellular states based on multimodal data. Here, we introduce "weighted-nearest neighbor" analysis, an unsupervised framework to learn the relative utility of each data type in each cell, enabling an integrative analysis of multiple modalities. We apply our procedure to a CITE-seq dataset of 211,000 human peripheral blood mononuclear cells (PBMCs) with panels extending to 228 antibodies to construct a multimodal reference atlas of the circulating immune system. Multimodal analysis substantially improves our ability to resolve cell states, allowing us to identify and validate previously unreported lymphoid subpopulations. Moreover, we demonstrate how to leverage this reference to rapidly map new datasets and to interpret immune responses to vaccination and coronavirus disease 2019 (COVID-19). Our approach represents a broadly applicable strategy to analyze single-cell multimodal datasets and to look beyond the transcriptome toward a unified and multimodal definition of cellular identity.
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Affiliation(s)
- Yuhan Hao
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA; New York Genome Center, New York, NY 10013, USA
| | - Stephanie Hao
- Technology Innovation Lab, New York Genome Center, New York, NY 10013, USA
| | - Erica Andersen-Nissen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Cape Town HVTN Immunology Lab, Hutchinson Cancer Research Institute of South Africa, Cape Town 8001, South Africa
| | - William M Mauck
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Shiwei Zheng
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA; New York Genome Center, New York, NY 10013, USA
| | - Andrew Butler
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA; New York Genome Center, New York, NY 10013, USA
| | - Maddie J Lee
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Aaron J Wilk
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Charlotte Darby
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Michael Zager
- Center for Data Visualization, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Paul Hoffman
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Marlon Stoeckius
- Technology Innovation Lab, New York Genome Center, New York, NY 10013, USA
| | - Efthymia Papalexi
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA; New York Genome Center, New York, NY 10013, USA
| | - Eleni P Mimitou
- Technology Innovation Lab, New York Genome Center, New York, NY 10013, USA
| | - Jaison Jain
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Avi Srivastava
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Tim Stuart
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Lamar M Fleming
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | | | - Angela J Rogers
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Juliana M McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Catherine A Blish
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; Chan Zuckerberg Biohub, San Francisco, CA 94063, USA
| | - Raphael Gottardo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Peter Smibert
- Technology Innovation Lab, New York Genome Center, New York, NY 10013, USA.
| | - Rahul Satija
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA; New York Genome Center, New York, NY 10013, USA.
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Zarghami V, Ghorbani M, Bagheri KP, Shokrgozar MA. Prevention the formation of biofilm on orthopedic implants by melittin thin layer on chitosan/bioactive glass/vancomycin coatings. J Mater Sci Mater Med 2021; 32:75. [PMID: 34156547 PMCID: PMC8219550 DOI: 10.1007/s10856-021-06551-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 06/05/2021] [Indexed: 06/13/2023]
Abstract
Methicillin-resistant and Vancomycin-resistant Staphylococcus aureus bacteria (MRSA and VRSA, respectively) can seriously jeopardizes bone implants. This research aimed to examine the potential synergistic effects of Melittin and vancomycin in preventing MRSA and VRSA associated bone implant infections. Chitosan/bioactive glass nanoparticles/vancomycin composites were coated on hydrothermally etched titanium substrates by casting method. The composite coatings were coated by Melittin through drop casting technique. Melittin raised the proliferation of MC3T3 cells, making it an appropriate option as osteoinductive and antibacterial substance in coatings of orthopedic implants. Composite coatings having combined vancomycin and Melittin eliminated both planktonic and adherent MRSA and VRSA bacteria, whereas coatings containing one of them failed to kill the whole VRSA bacteria. Therefore, chitosan/bioactive glass/vancomycin/Melittin coating can be used as a bone implant coating because of its anti-infective properties.
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Affiliation(s)
- Vahid Zarghami
- Institute for Nanoscience & Nanotechnology, Sharif University of Technology, Tehran, Iran
| | - Mohammad Ghorbani
- Institute for Nanoscience & Nanotechnology, Sharif University of Technology, Tehran, Iran.
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran.
| | - Kamran Pooshang Bagheri
- Venom & Biotherapeutics Molecules Laboratory, Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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Goyal P, Pai HV, Kodali P, Vats B, Vajpai N, Annegowda S, Mane K, Mohan S, Saxena S, Veerabhadraia AB, Palande M, Nair PS, More DC, Karudumpa UR, Jyothirmai K, Bhattacharya A, Almeida F, Khyade SG, Gouda S, Ranayhossaini DJ, Moole PR, Smith JP, Barve A, Melarkode R, Ullanat R. Physicochemical and functional characterization of MYL-1501D, a proposed biosimilar to insulin glargine. PLoS One 2021; 16:e0253168. [PMID: 34133466 PMCID: PMC8208551 DOI: 10.1371/journal.pone.0253168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/31/2021] [Indexed: 11/18/2022] Open
Abstract
Insulin glargine is a long-acting analogue of human insulin that has been used to manage hyperglycemia in patients with diabetes mellitus (DM) for nearly 20 years. Insulin glargine has a relatively constant concentration-time profile that mimics basal levels of insulin and allows for once-daily administration. MYL-1501D is a biosimilar insulin glargine designed to offer greater access of insulin glargine to patients, with comparable efficacy and safety to the marketed reference product. We conducted a comprehensive panel of studies based on a formal analysis of critical quality attributes to characterize the structural and functional properties of MYL-1501D and reference insulin glargine products available in the United States and European Union. MYL-1501D was comprehensively shown to have high similarity to the reference products in terms of protein structure, metabolic activity (both in vitro cell-based assays and in vivo rabbit bioassays), and in vitro cell-based assays for mitogenic activity. The structural analyses demonstrated that the primary protein sequence was identical, and secondary and tertiary structures are similar between the proposed biosimilar and the reference products. Insulin receptor binding affinity and phosphorylation studies also established analytical similarity. MYL-1501D demonstrated high similarity in different metabolic assays of glucose uptake, adipogenesis activity, and inhibition of stimulated lipolysis. Rabbit bioassay studies showed MYL-1501D and EU-approved insulin glargine are highly similar to US-licensed insulin glargine. These product quality studies show high similarity between MYL-1501D and licensed or approved insulin glargine products and suggest the potential of MYL-1501D as an alternative cost-effective treatment option for patients and clinicians.
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Affiliation(s)
- Parag Goyal
- Viatris Inc, Canonsburg, PA, United States of America
- * E-mail: (PG); (RM)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Abhijit Barve
- Viatris Inc, Canonsburg, PA, United States of America
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Yao YT, Yang Y, Ye Q, Cao SS, Zhang XP, Zhao K, Jian Y. Effects of pore size and porosity on cytocompatibility and osteogenic differentiation of porous titanium. J Mater Sci Mater Med 2021; 32:72. [PMID: 34125310 PMCID: PMC8203544 DOI: 10.1007/s10856-021-06548-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 05/31/2021] [Indexed: 06/12/2023]
Abstract
To find out the optimal porosity and pore size of porous titanium (Ti) regarding the cytocompatibility and osteogenic differentiation. Six groups of porous Ti samples with different porosities and pore sizes were fabricated by the powder metallurgy process. The microstructure and compressive mechanical properties were characterized. The cytocompatibility was examined by a series of biological tests as protein absorption with BCA assay kit, cell attachment with laser scanning confocal microscopy and vinculin expression, cell proliferation with CCK-8 assay. Cell differentiation and calcification were detected by qPCR and Alizarin Red S dying respectively. Pores distributed homogeneously throughout the porous Ti samples. The compressive test results showed that Young's modulus ranged from 2.80 ± 0.03 GPa to 5.43 ± 0.34 GPa and the compressive strength increased from 112.4 ± 3.6 MPa to 231.1 ± 9.4 MPa. Porous Ti with high porosity (53.3 ± 1.2%) and small pore size (191.6 ± 3.7 μm) adsorbed more proteins. More MC3T3-E1 cells adhered onto dense Ti samples than onto any other porous ones already after culture and no difference was identified within the porous groups. The porous structure of porous Ti with a porosity of 53.3 ± 1.2% and an average pore size of 191.6 ± 3.7 μm facilitated cell differentiation and calcification. Small pores were not beneficial to the osteo-initiation at the very beginning. Porous Ti with a porosity of 53.3 ± 1.2% and an average pore size of 191.6 ± 3.7 μm fabricated by powder metallurgy process showed the expected mechanical property and improved osseointegration as implants in dental treatment.
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Affiliation(s)
- Yi-Tong Yao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yue Yang
- Department of Stomatology, Shenzhen People's Hospital (Second Clinical Medical School of Jinan University; First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, China
| | - Qi Ye
- Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
| | - Shan-Shan Cao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
| | - Xin-Ping Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China.
| | - Ke Zhao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
| | - Yutao Jian
- Institute of Stomatological Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China.
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Tait A, Proctor T, Hamilton NJI, Birchall MA, Lowdell MW. GMP compliant isolation of mucosal epithelial cells and fibroblasts from biopsy samples for clinical tissue engineering. Sci Rep 2021; 11:12392. [PMID: 34117337 PMCID: PMC8196163 DOI: 10.1038/s41598-021-91939-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/01/2021] [Indexed: 12/11/2022] Open
Abstract
Engineered epithelial cell sheets for clinical replacement of non-functional upper aerodigestive tract mucosa are regulated as medicinal products and should be manufactured to the standards of good manufacturing practice (GMP). The current gold standard for growth of epithelial cells for research utilises growth arrested murine 3T3 J2 feeder layers, which are not available for use as a GMP compliant raw material. Using porcine mucosal tissue, we demonstrate a new method for obtaining and growing non-keratinised squamous epithelial cells and fibroblast cells from a single biopsy, replacing the 3T3 J2 with a growth arrested primary fibroblast feeder layer and using pooled Human Platelet lysate (HPL) as the media serum supplement to replace foetal bovine serum (FBS). The initial isolation of the cells was semi-automated using an Octodissociator and the resultant cell suspension cryopreservation for future use. When compared to the gold standard of 3T3 J2 and FBS containing medium there was no reduction in growth, viability, stem cell population or ability to differentiate to mature epithelial cells. Furthermore, this method was replicated with Human buccal tissue, providing cells of sufficient quality and number to create a tissue engineered sheet.
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Affiliation(s)
- Angela Tait
- Cancer Institute, Department of Haematology, University College London, London, UK.
| | - Toby Proctor
- Department of Biochemical Engineering, University College London, London, UK
| | | | | | - Mark W Lowdell
- Cancer Institute, Department of Haematology, University College London, London, UK
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Rupert JE, Narasimhan A, Jengelley DH, Jiang Y, Liu J, Au E, Silverman LM, Sandusky G, Bonetto A, Cao S, Lu X, O’Connell TM, Liu Y, Koniaris LG, Zimmers TA. Tumor-derived IL-6 and trans-signaling among tumor, fat, and muscle mediate pancreatic cancer cachexia. J Exp Med 2021; 218:e20190450. [PMID: 33851955 PMCID: PMC8185651 DOI: 10.1084/jem.20190450] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 12/20/2020] [Accepted: 02/26/2021] [Indexed: 12/12/2022] Open
Abstract
Most patients with pancreatic adenocarcinoma (PDAC) suffer cachexia; some do not. To model heterogeneity, we used patient-derived orthotopic xenografts. These phenocopied donor weight loss. Furthermore, muscle wasting correlated with mortality and murine IL-6, and human IL-6 associated with the greatest murine cachexia. In cell culture and mice, PDAC cells elicited adipocyte IL-6 expression and IL-6 plus IL-6 receptor (IL6R) in myocytes and blood. PDAC induced adipocyte lipolysis and muscle steatosis, dysmetabolism, and wasting. Depletion of IL-6 from malignant cells halved adipose wasting and abolished myosteatosis, dysmetabolism, and atrophy. In culture, adipocyte lipolysis required soluble (s)IL6R, while IL-6, sIL6R, or palmitate induced myotube atrophy. PDAC cells activated adipocytes to induce myotube wasting and activated myotubes to induce adipocyte lipolysis. Thus, PDAC cachexia results from tissue crosstalk via a feed-forward, IL-6 trans-signaling loop. Malignant cells signal via IL-6 to muscle and fat, muscle to fat via sIL6R, and fat to muscle via lipids and IL-6, all targetable mechanisms for treatment of cachexia.
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Affiliation(s)
- Joseph E. Rupert
- Department of Biochemistry, Indiana University School of Medicine, Indianapolis, IN
| | - Ashok Narasimhan
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
| | | | - Yanlin Jiang
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Jianguo Liu
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Ernie Au
- Department of Biochemistry, Indiana University School of Medicine, Indianapolis, IN
| | - Libbie M. Silverman
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - George Sandusky
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN
- Department of Pathology, Indiana University School of Medicine, Indianapolis, IN
| | - Andrea Bonetto
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN
- Department of Otolaryngology–Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN
| | - Sha Cao
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, IN
| | - Xiaoyu Lu
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, IN
| | - Thomas M. O’Connell
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN
- Department of Otolaryngology–Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN
| | - Yunlong Liu
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN
- Department of Molecular and Medical Genetics, Indiana University School of Medicine, Indianapolis, IN
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, IN
| | - Leonidas G. Koniaris
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN
| | - Teresa A. Zimmers
- Department of Biochemistry, Indiana University School of Medicine, Indianapolis, IN
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN
- Department of Otolaryngology–Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, IN
- Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, IN
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Liu C, Qiao W, Wang C, Wang H, Zhou Y, Gu S, Xu W, Zhuang Y, Shi J, Yang H. Effect of poly (lactic acid) porous membrane prepared via phase inversion induced by water droplets on 3T3 cell behavior. Int J Biol Macromol 2021; 183:2205-2214. [PMID: 34087303 DOI: 10.1016/j.ijbiomac.2021.05.197] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/19/2021] [Accepted: 05/29/2021] [Indexed: 11/18/2022]
Abstract
Phase inversion induced by water droplets has garnered attention in the field of polymer science as a novel method for preparing porous membranes. This study investigates the effect of the porous structure of poly (lactic acid) (PLA) membranes prepared through phase inversion induced by water droplets at four different temperatures (25, 50, 75, and 100 °C) on the morphology and proliferation of 3T3 cells. The surface properties of the PLA porous membrane, including pore size, pore size distribution, surface roughness, surface hydrophilicity, and cytocompatibility with 3T3 cells, were evaluated. The results indicated that the synthesized PLA membrane had two surfaces with different structures. The upper surface in contact with the water droplets during preparation contained uniformly distributed micropores, whereas the bottom surface was smooth and composed of small particles in contacted with the mold. The upper surface showed high cytocompatibility with 3T3 cells, and the 3T3 cells migrated and grew within the pores at 25 °C. In contrast, the bottom surface exhibited low biocompatibility with the 3T3 cells. Our study has wide-ranging implications and will improve the fabrication and implementation of 3D cultured scaffolds with excellent cytocompatibility.
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Affiliation(s)
- Changjun Liu
- College of material science and engineering, Wuhan Textile University, Wuhan 430200, PR China; Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, PR China
| | - Weihua Qiao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China
| | - Chaorong Wang
- College of material science and engineering, Wuhan Textile University, Wuhan 430200, PR China; Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, PR China
| | - Han Wang
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, PR China
| | - Yingshan Zhou
- College of material science and engineering, Wuhan Textile University, Wuhan 430200, PR China; Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, PR China
| | - Shaojin Gu
- College of material science and engineering, Wuhan Textile University, Wuhan 430200, PR China; Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, PR China
| | - Weilin Xu
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, PR China
| | - Yan Zhuang
- College of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, PR China.
| | - Jiawei Shi
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China.
| | - Hongjun Yang
- College of material science and engineering, Wuhan Textile University, Wuhan 430200, PR China; Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, PR China.
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Liu H, Liu S, Ji H, Zhao Q, Liu Y, Hu P, Luo E. An adiponectin receptor agonist promote osteogenesis via regulating bone-fat balance. Cell Prolif 2021; 54:e13035. [PMID: 33939201 PMCID: PMC8168410 DOI: 10.1111/cpr.13035] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/09/2021] [Accepted: 03/15/2021] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Adiponectin signalling has been considered to be a promising target to treat diabetes-related osteoporosis. However, contradictory results regarding bone formation were observed due to the various isoforms of adiponectin. Therefore, it would be necessary to investigate the effect of adiponectin receptor signals in regulating bone-fat balance. MATERIALS AND METHODS We primarily applied a newly found specific activator for adiponectin receptor, AdipoRon, to treat bone metabolism-related cells to investigate the role of Adiponectin receptor signals on bone-fat balance. We then established femur defect mouse model and treated them with AdipoRon to see whether adiponectin receptor activation could promote bone regeneration. RESULTS We found that AdipoRon could slightly inhibit the proliferation of pre-osteoblast and pre-osteoclast, but AdipoRon showed no effect on the viability of mesenchymal stromal cells. AdipoRon could remarkably promote cell migration of mesenchymal stromal cells. Additionally, AdipoRon promoted osteogenesis in both pre-osteoblasts and mesenchymal cells. Besides, AdipoRon significantly inhibited osteoclastogenesis via its direct impact on pre-osteoclast and its indirect inhibition of RANKL in osteoblast. Moreover, mesenchymal stromal stems cells showed obviously decreased adipogenesis when treated with AdipoRon. Consistently, AdipoRon-treated mice showed faster bone regeneration and repressed adipogenesis. CONCLUSIONS Our study demonstrated a pro-osteogenic, anti-adipogenic and anti-osteoclastogenic effect of adiponectin receptor activation in young mice, which suggested adiponectin receptor signalling was involved in bone regeneration and bone-fat balance regulation.
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Affiliation(s)
- Hanghang Liu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
- Maine Medical Center Research InstituteMaine Medical CenterScarboroughMEUSA
| | - Shibo Liu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Huanzhong Ji
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Qiucheng Zhao
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Yao Liu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Pei Hu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - En Luo
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
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Teixeira TR, Rangel KC, Tavares RSN, Kawakami CM, Dos Santos GS, Maria-Engler SS, Colepicolo P, Gaspar LR, Debonsi HM. In Vitro Evaluation of the Photoprotective Potential of Quinolinic Alkaloids Isolated from the Antarctic Marine Fungus Penicillium echinulatum for Topical Use. Mar Biotechnol (NY) 2021; 23:357-372. [PMID: 33811268 DOI: 10.1007/s10126-021-10030-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Marine-derived fungi proved to be a rich source of biologically active compounds. The genus Penicillium has been extensively studied regarding their secondary metabolites and biological applications. However, the photoprotective effects of these metabolites remain underexplored. Herein, the photoprotective potential of Penicillium echinulatum, an Antarctic alga-associated fungus, was assessed by UV absorption, photostability study, and protection from UVA-induced ROS generation assay on human immortalized keratinocytes (HaCaT) and reconstructed human skin (RHS). The photosafety was evaluated by the photoreactivity (OECD TG 495) and phototoxicity assays, performed by 3T3 neutral red uptake (3T3 NRU PT, OECD TG 432) and by the RHS model. Through a bio-guided purification approach, four known alkaloids, (-)-cyclopenin (1), dehydrocyclopeptine (2), viridicatin (3), and viridicatol (4), were isolated. Compounds 3 and 4 presented absorption in UVB and UVA-II regions and were considered photostable after UVA irradiation. Despite compounds 3 and 4 showed phototoxic potential in 3T3 NRU PT, no phototoxicity was observed in the RHS model (reduction of cell viability < 30%), which indicates their very low acute photoirritation and high photosafety potential in humans. Viridicatin was considered weakly photoreactive, while viridicatol showed no photoreactivity; both compounds inhibited UVA-induced ROS generation in HaCaT cells, although viridicatol was not able to protect the RHS model against UVA-induced ROS production. Thus, the results highlighted the photoprotective and antioxidant potential of metabolites produced by P. echinulatum which can be considered a new class of molecules for photoprotection, since their photosafety and non-cytotoxicity were predicted using recommended in vitro methods for topical use.
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Affiliation(s)
- Thaiz Rodrigues Teixeira
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Karen Cristina Rangel
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Renata Spagolla Napoleão Tavares
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Camila Martins Kawakami
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Gustavo Souza Dos Santos
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Silvya Stuchi Maria-Engler
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Pio Colepicolo
- Department of Biochemistry, Chemistry Institute, University of São Paulo, São Paulo, SP, Brazil
| | - Lorena Rigo Gaspar
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Hosana Maria Debonsi
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Atif AR, Pujari-Palmer M, Tenje M, Mestres G. A microfluidics-based method for culturing osteoblasts on biomimetic hydroxyapatite. Acta Biomater 2021; 127:327-337. [PMID: 33785452 DOI: 10.1016/j.actbio.2021.03.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/02/2021] [Accepted: 03/22/2021] [Indexed: 12/11/2022]
Abstract
The reliability of conventional cell culture studies to evaluate biomaterials is often questioned, as in vitro outcomes may contradict results obtained through in vivo assays. Microfluidics technology has the potential to reproduce complex physiological conditions by allowing for fine control of microscale features such as cell confinement and flow rate. Having a continuous flow during cell culture is especially advantageous for bioactive biomaterials such as calcium-deficient hydroxyapatite (HA), which may otherwise alter medium composition and jeopardize cell viability, potentially producing false negative results in vitro. In this work, HA was integrated into a microfluidics-based platform (HA-on-chip) and the effect of varied flow rates (2, 8 and 14 µl/min, corresponding to 0.002, 0.008 and 0.014 dyn/cm2, respectively) was evaluated. A HA sample placed in a well plate (HA-static) was included as a control. While substantial calcium depletion and phosphate release occurred in static conditions, the concentration of ions in HA-on-chip samples remained similar to those of fresh medium, particularly at higher flow rates. Pre-osteoblast-like cells (MC3T3-E1) exhibited a significantly higher degree of proliferation on HA-on-chip (8 μl/min flow rate) as compared to HA-static. However, cell differentiation, analysed by alkaline phosphatase (ALP) activity, showed low values in both conditions. This study indicates that cells respond differently when cultured on HA under flow compared to static conditions, which indicates the need for more physiologically relevant methods to increase the predictive value of in vitro studies used to evaluate biomaterials. STATEMENT OF SIGNIFICANCE: There is a lack of correlation between the results obtained when testing some biomaterials under cell culture as opposed to animal models. To address this issue, a cell culture method with slightly enhanced physiological relevance was developed by incorporating a biomaterial, known to regenerate bone, inside of a microfluidic platform that enabled a continuous supply of cell culture medium. Since the utilized biomaterial interacts with surrounding ions, the perfusion of medium allowed for shielding of these changes similarly as would happen in the body. The experimental outcomes observed in the dynamic platform were different than those obtained with standard static cell culture systems, proving the key role of the platform in the assessment of biomaterials.
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Affiliation(s)
- Abdul Raouf Atif
- Division of Microsystems Technology, Department of Materials Science and Engineering, Science for Life Laboratory, Uppsala University, 751 22 Uppsala, Sweden
| | - Michael Pujari-Palmer
- Division of Applied Materials Science, Department of Materials Science and Engineering, Uppsala University, 751 22 Uppsala, Sweden
| | - Maria Tenje
- Division of Microsystems Technology, Department of Materials Science and Engineering, Science for Life Laboratory, Uppsala University, 751 22 Uppsala, Sweden
| | - Gemma Mestres
- Division of Microsystems Technology, Department of Materials Science and Engineering, Science for Life Laboratory, Uppsala University, 751 22 Uppsala, Sweden.
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Eckert J, van Loon JJWA, Eng LM, Schmidt T. Hypergravity affects cell traction forces of fibroblasts. Biophys J 2021; 120:773-780. [PMID: 33657362 DOI: 10.1016/j.bpj.2021.01.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 12/24/2020] [Accepted: 01/08/2021] [Indexed: 11/18/2022] Open
Abstract
Cells sense and react on changes of the mechanical properties of their environment and, likewise, respond to external mechanical stress applied to them. However, whether the gravitational field as overall body force modulates cellular behavior is unclear. Different studies demonstrated that micro- and hypergravity influences the shape and elasticity of cells, initiate cytoskeleton reorganization, and influence cell motility. All these cellular properties are interconnected and contribute to forces that cells apply on their surrounding microenvironment. Yet, studies that investigated changes of cell traction forces under hypergravity conditions are scarce. Here, we performed hypergravity experiments on 3T3 fibroblast cells using the large-diameter centrifuge at the European Space Agency - European Space Research and Technology Centre. Cells were exposed to hypergravity of up to 19.5 g for 16 h in both the upright and the inverted orientation with respect to the g-force vector. We observed a decrease in cellular traction forces when the gravitational field was increased up to 5.4 g, followed by an increase of traction forces for higher gravity fields up to 19.5 g independent of the orientation of the gravity vector. We attribute the switch in cellular response to shear thinning at low g-forces, followed by significant rearrangement and enforcement of the cytoskeleton at high g-forces.
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Affiliation(s)
- Julia Eckert
- Physics of Life Processes, Leiden Institute of Physics, Leiden University, Leiden, the Netherlands; School of Science, Department of Physics, Technische Universität Dresden, Dresden, Germany; Life & Physical Science, Instrumentation and Life Support Laboratory, ESA/ESTEC, Noordwijk, the Netherlands
| | - Jack J W A van Loon
- Life & Physical Science, Instrumentation and Life Support Laboratory, ESA/ESTEC, Noordwijk, the Netherlands; Dutch Experiment Support Centre, Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre, location VUmc & Academic Centre for Dentistry Amsterdam, Amsterdam, the Netherlands
| | - Lukas M Eng
- School of Science, Department of Physics, Technische Universität Dresden, Dresden, Germany
| | - Thomas Schmidt
- Physics of Life Processes, Leiden Institute of Physics, Leiden University, Leiden, the Netherlands.
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Debons N, Matsumoto K, Hirota N, Coradin T, Ikoma T, Aimé C. Magnetic Field Alignment, a Perspective in the Engineering of Collagen-Silica Composite Biomaterials. Biomolecules 2021; 11:749. [PMID: 34069793 PMCID: PMC8157240 DOI: 10.3390/biom11050749] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 02/02/2023] Open
Abstract
Major progress in the field of regenerative medicine is expected from the design of artificial scaffolds that mimic both the structural and functional properties of the ECM. The bionanocomposites approach is particularly well fitted to meet this challenge as it can combine ECM-based matrices and colloidal carriers of biological cues that regulate cell behavior. Here we have prepared bionanocomposites under high magnetic field from tilapia fish scale collagen and multifunctional silica nanoparticles (SiNPs). We show that scaffolding cues (collagen), multiple display of signaling peptides (SiNPs) and control over the global structuration (magnetic field) can be combined into a unique bionanocomposite for the engineering of biomaterials with improved cell performances.
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Affiliation(s)
- Nicolas Debons
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université, CNRS, 75005 Paris, France; (N.D.); (T.C.)
| | - Kenta Matsumoto
- Tokyo Institute of Technology, School of Materials and Chemical Technology, Department of Materials Science and Engineering, Ookayama 2-12-1, Meguro-ku, Tokyo 152-8550, Japan; (K.M.); (T.I.)
| | - Noriyuki Hirota
- National Institute for Materials Science, Fine Particles Engineering Group, 3-13 Sakura, Tuskuba 305-0003, Japan;
| | - Thibaud Coradin
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université, CNRS, 75005 Paris, France; (N.D.); (T.C.)
| | - Toshiyuki Ikoma
- Tokyo Institute of Technology, School of Materials and Chemical Technology, Department of Materials Science and Engineering, Ookayama 2-12-1, Meguro-ku, Tokyo 152-8550, Japan; (K.M.); (T.I.)
| | - Carole Aimé
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université, CNRS, 75005 Paris, France; (N.D.); (T.C.)
- Ecole Normale Supérieure, CNRS-ENS-SU UMR 8640, 24 rue Lhomond, 75005 Paris, France
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Yasui H, Nishinaga Y, Taki S, Takahashi K, Isobe Y, Shimizu M, Koike C, Taki T, Sakamoto A, Katsumi K, Ishii K, Sato K. Near-infrared photoimmunotherapy targeting GPR87: Development of a humanised anti-GPR87 mAb and therapeutic efficacy on a lung cancer mouse model. EBioMedicine 2021; 67:103372. [PMID: 33993055 PMCID: PMC8138482 DOI: 10.1016/j.ebiom.2021.103372] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/25/2021] [Accepted: 04/16/2021] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND GPR87 is a G-protein receptor that is specifically expressed in tumour cells, such as lung cancer, and rarely expressed in normal cells. GPR87 is a promising target for cancer therapy, but its ligand is controversial. Near-infrared photoimmunotherapy (NIR-PIT) is a novel cancer therapy in which a photosensitiser, IRDye700DX (IR700), binds to antibodies and specifically destroys target cells by irradiating them with near-infrared-light. Here, we aimed to develop a NIR-PIT targeting GPR87. METHODS We evaluated the expression of GPR87 in resected specimens of lung cancer and malignant pleural mesothelioma (MPM) resected at Nagoya University Hospital using immunostaining. Humanised anti-GPR87 antibody (huGPR87) was generated by introducing CDRs from mouse anti-GPR87 antibody generated by standard hybridoma method. HuGPR87 was conjugated with IR700 and the therapeutic effect of NIR-PIT was evaluated in vitro and in vivo using lung cancer or MPM cell lines. FINDINGS Among the surgical specimens, 54% of lung cancer and 100% of MPM showed high expression of GPR87. It showed therapeutic effects on lung cancer and MPM cell lines in vitro, and showed therapeutic effects in multiple models in vivo. INTERPRETATION These results suggest that NIR-PIT targeting GPR87 is a promising therapeutic approach for the treatment of thoracic cancer. FUNDING This research was supported by the Program for Developing Next-generation Researchers (Japan Science and Technology Agency), KAKEN (18K15923, 21K07217, JSPS), FOREST-Souhatsu, CREST (JST).
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Affiliation(s)
- Hirotoshi Yasui
- Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Yuko Nishinaga
- Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Shunichi Taki
- Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Kazuomi Takahashi
- Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Yoshitaka Isobe
- Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Misae Shimizu
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC) / Medical Engineering Unit (MEU), B3 Unit, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Chiaki Koike
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC) / Medical Engineering Unit (MEU), B3 Unit, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Tetsuro Taki
- Department of Pathology, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan
| | - Aya Sakamoto
- Perseus Proteomics, Inc., 4-7-6, Komaba 153-0041, Meguro-ku, Tokyo, Japan
| | - Keiko Katsumi
- Perseus Proteomics, Inc., 4-7-6, Komaba 153-0041, Meguro-ku, Tokyo, Japan
| | - Keisuke Ishii
- Perseus Proteomics, Inc., 4-7-6, Komaba 153-0041, Meguro-ku, Tokyo, Japan
| | - Kazuhide Sato
- Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan; Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC) / Medical Engineering Unit (MEU), B3 Unit, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8560, Aichi, Japan; FOREST- Souhatsu, CREST, JST; Nagoya University Institute for Advanced Research, S-YLC, Furo-cho, Chikusa-ku, Nagoya 464-8601, Aichi,, Japan.
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Luk CH, Valenzuela C, Gil M, Swistak L, Bomme P, Chang YY, Mallet A, Enninga J. Salmonella enters a dormant state within human epithelial cells for persistent infection. PLoS Pathog 2021; 17:e1009550. [PMID: 33930101 PMCID: PMC8115778 DOI: 10.1371/journal.ppat.1009550] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 05/12/2021] [Accepted: 04/08/2021] [Indexed: 02/06/2023] Open
Abstract
Salmonella Typhimurium (S. Typhimurium) is an enteric bacterium capable of invading a wide range of hosts, including rodents and humans. It targets different host cell types showing different intracellular lifestyles. S. Typhimurium colonizes different intracellular niches and is able to either actively divide at various rates or remain dormant to persist. A comprehensive tool to determine these distinct S. Typhimurium lifestyles remains lacking. Here we developed a novel fluorescent reporter, Salmonella INtracellular Analyzer (SINA), compatible for fluorescence microscopy and flow cytometry in single-bacterium level quantification. This identified a S. Typhimurium subpopulation in infected epithelial cells that exhibits a unique phenotype in comparison to the previously documented vacuolar or cytosolic S. Typhimurium. This subpopulation entered a dormant state in a vesicular compartment distinct from the conventional Salmonella-containing vacuoles (SCV) as well as the previously reported niche of dormant S. Typhimurium in macrophages. The dormant S. Typhimurium inside enterocytes were viable and expressed Salmonella Pathogenicity Island 2 (SPI-2) virulence factors at later time points. We found that the formation of these dormant S. Typhimurium is not triggered by the loss of SPI-2 effector secretion but it is regulated by (p)ppGpp-mediated stringent response through RelA and SpoT. We predict that intraepithelial dormant S. Typhimurium represents an important pathogen niche and provides an alternative strategy for S. Typhimurium pathogenicity and its persistence. Salmonella Typhimurium is a clinically relevant bacterial pathogen that causes Salmonellosis. It can actively or passively invade various host cell types and reside in a Salmonella-containing vacuole (SCV) within host cells. The SCV can be remodeled into a replicative niche with the aid of Salmonella Type III Secretion System 2 (T3SS2) effectors or else, the SCV is ruptured for the access of the nutrient-rich host cytosol. Depending on the infected host cell type, S. Typhimurium undertake different lifestyles that are distinct by their subcellular localization, replication rate and metabolic rate. We present here a novel fluorescent reporter system that rapidly detects S. Typhimurium lifestyles using fluorescence microscopy and flow cytometry. We identified a dormant S. Typhimurium population within enterocyte that displays capacities in host cell persistence, dormancy exit and antibiotic tolerance. We deciphered the (p)ppGpp stringent response pathway that suppresses S. Typhimurium dormancy in enterocytes while promoting dormancy in macrophages, pinpointing a divergent physiological consequence regulated by the same set of S. Typhimurium molecular mediators. Altogether, our work demonstrated the potential of fluorescent reporters in facile bacterial characterization, and revealed a dormant S. Typhimurium population in human enterocytes that are phenotypically distinct from that observed in macrophages and fibroblasts.
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Affiliation(s)
- Chak Hon Luk
- Dynamics of Host-Pathogen Interactions Unit and UMR3691 CNRS, Institut Pasteur, Paris, France
- Université de Paris, Sorbonne Paris Cité, Paris, France
| | - Camila Valenzuela
- Dynamics of Host-Pathogen Interactions Unit and UMR3691 CNRS, Institut Pasteur, Paris, France
| | - Magdalena Gil
- Dynamics of Host-Pathogen Interactions Unit and UMR3691 CNRS, Institut Pasteur, Paris, France
| | - Léa Swistak
- Dynamics of Host-Pathogen Interactions Unit and UMR3691 CNRS, Institut Pasteur, Paris, France
- Université de Paris, Sorbonne Paris Cité, Paris, France
| | - Perrine Bomme
- Ultrastructural Bioimaging UTechS, C2RT, Institut Pasteur, Paris, France
| | - Yuen-Yan Chang
- Dynamics of Host-Pathogen Interactions Unit and UMR3691 CNRS, Institut Pasteur, Paris, France
| | - Adeline Mallet
- Ultrastructural Bioimaging UTechS, C2RT, Institut Pasteur, Paris, France
| | - Jost Enninga
- Dynamics of Host-Pathogen Interactions Unit and UMR3691 CNRS, Institut Pasteur, Paris, France
- Université de Paris, Sorbonne Paris Cité, Paris, France
- * E-mail:
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70
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Pal S, Sayeed M, Kumar A, Verma DP, Harioudh MK, Verma NK, Porwal K, Sharma S, Kulkarni C, Bandyopadhyay A, Mugale MN, Mitra K, Ghosh JK, Chattopadhyay N. Self-Assembling Nano-Globular Peptide from Human Lactoferrin Acts as a Systemic Enhancer of Bone Regeneration: A Novel Peptide for Orthopedic Application. ACS Appl Mater Interfaces 2021; 13:17300-17315. [PMID: 33830736 DOI: 10.1021/acsami.1c01513] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A technology for systemic and repeated administration of osteogenic factors for orthopedic use is an unmet medical need. Lactoferrin (∼80 kDa), present in milk, is known to support bone growth. We discovered a lactoferrin-mimetic peptide, LP2 (an 18-residue fragment from the N-terminus of the N-lobe of human lactoferrin), which self-assembles into a nano-globular assembly with a β-sheet structure in an aqueous environment. LP2 is non-hemolytic and non-cytotoxic against human red blood cells and 3T3 fibroblasts, respectively, and appreciably stable in the human serum. LP2 through the bone morphogenetic protein-dependent mechanism stimulates osteoblast differentiation more potently than the full-length protein as well as the osteoblastic production of osteoprotegerin (an anti-osteoclastogenic factor). Consequently, daily subcutaneous administration of LP2 to rats and rabbits with osteotomy resulted in faster bone healing and stimulated bone formation in rats with a low bone mass more potently than that with teriparatide, the standard-of-care osteogenic peptide for osteoporosis. LP2 has skeletal bioavailability and is safe at the 15× osteogenic dose. Thus, LP2 is a novel peptide that can be administered systemically for the medical management of hard-to-heal fractures.
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Affiliation(s)
- Subhashis Pal
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Mohd Sayeed
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Amit Kumar
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Devesh P Verma
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Munesh K Harioudh
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Neeraj K Verma
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Konica Porwal
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Shivani Sharma
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Chirag Kulkarni
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Amitabha Bandyopadhyay
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Madhav N Mugale
- Academy of Scientific and Innovative Research, New Delhi 110001, India
- Toxicology and Experimental Medicine Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Kalyan Mitra
- Academy of Scientific and Innovative Research, New Delhi 110001, India
- Electron Microscopy Unit, SAIF Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Jimut K Ghosh
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Naibedya Chattopadhyay
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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Li X, Zhang D, Yin C, Lu G, Wan Y, Huang Z, Tan J, Li S, Luo J, Lee CS. A Diradicaloid Small Molecular Nanotheranostic with Strong Near-Infrared Absorbance for Effective Cancer Photoacoustic Imaging and Photothermal Therapy. ACS Appl Mater Interfaces 2021; 13:15983-15991. [PMID: 33788531 DOI: 10.1021/acsami.0c21889] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Organic small molecule-based phototheranostics hold great promise for clinical translation by virtue of their distinct chemical structure, easy reproducibility, and high purity. However, reported molecular agents typically have relatively low optical absorbances, particularly over the near-infrared (NIR) region, and this limits their phototheranostic performance. Herein, we first exploit a diradicaloid molecular structure for enhancing NIR absorption to facilitate efficient photoacoustic imaging (PAI)-guided photothermal therapy (PTT). The donor-acceptor interaction in the diradicaloid molecule (DRM) leads to strong charge transfer resulting on obvious diradical characteristics, which is beneficial for NIR absorption. The DRM possesses excellent light-harvesting ability, with a mass extinction coefficient of ∼220 L g-1 cm-1, which is much higher than those (∼5-100 L g-1 cm-1) of typical organic molecules. After assembling into nanoparticles, they show good water dispersibility, good photostability, and impressive performance for PAI-guided PTT in vitro and in vivo. The impressive in vitro and in vivo performances show that developing small molecules with diradicaloid structures can be an effective approach for enhancing NIR harvesting capability for biomedical applications.
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Affiliation(s)
- Xiaozhen Li
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
| | - Di Zhang
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P.R. China
| | - Chao Yin
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, P.R. China
| | - Guihong Lu
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhong Guan Cun, Beijing 100190, P.R. China
| | - Yingpeng Wan
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
| | - Zhongming Huang
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
| | - Jihua Tan
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
| | - Shengliang Li
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Jingdong Luo
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P.R. China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P.R. China
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Messina CM, Manuguerra S, Arena R, Renda G, Ficano G, Randazzo M, Fricano S, Sadok S, Santulli A. In Vitro Bioactivity of Astaxanthin and Peptides from Hydrolisates of Shrimp ( Parapenaeus longirostris) By-Products: From the Extraction Process to Biological Effect Evaluation, as Pilot Actions for the Strategy "From Waste to Profit". Mar Drugs 2021; 19:md19040216. [PMID: 33924455 PMCID: PMC8070669 DOI: 10.3390/md19040216] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 12/14/2022] Open
Abstract
Non-edible parts of crustaceans could be a rich source of valuable bioactive compounds such as the carotenoid astaxanthin and peptides, which have well-recognized beneficial effects. These compounds are widely used in nutraceuticals and pharmaceuticals, and their market is rapidly growing, suggesting the need to find alternative sources. The aim of this work was to set up a pilot-scale protocol for the reutilization of by-products of processed shrimp, in order to address the utilization of this valuable biomass for nutraceutical and pharmaceuticals application, through the extraction of astaxanthin-enriched oil and antioxidant-rich protein hydrolysates. Astaxanthin (AST) was obtained using “green extraction methods,” such as using fish oil and different fatty acid ethyl esters as solvents and through supercritical fluid extraction (SFE), whereas bioactive peptides were obtained by protease hydrolysis. Both astaxanthin and bioactive peptides exhibited bioactive properties in vitro in cellular model systems, such as antioxidant and angiotensin I converting enzyme (ACE) inhibitory activities (IA). The results show higher astaxanthin yields in ethyl esters fatty acids (TFA) extraction and significant enrichment by short-path distillation (SPD) up to 114.80 ± 1.23 µg/mL. Peptide fractions of <3 kDa and 3–5 kDa exhibited greater antioxidant activity while the fraction 5–10 kDa exhibited a better ACE-IA. Lower-molecular-weight bioactive peptides and astaxanthin extracted using supercritical fluids showed protective effects against oxidative damage in 142BR and in 3T3 cell lines. These results suggest that “green” extraction methods allow us to obtain high-quality bioactive compounds from large volumes of shrimp waste for nutraceutical and pharmaceutical applications.
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Affiliation(s)
- Concetta Maria Messina
- Dipartimento di Scienze della terra e del Mare DiSTeM, Laboratorio di Biochimica Marina ed Ecotossicologia, Università degli Studi di Palermo, Via G. Barlotta 4, 91100 Trapani, Italy; (S.M.); (R.A.); (G.R.); (G.F.); (A.S.)
- Correspondence:
| | - Simona Manuguerra
- Dipartimento di Scienze della terra e del Mare DiSTeM, Laboratorio di Biochimica Marina ed Ecotossicologia, Università degli Studi di Palermo, Via G. Barlotta 4, 91100 Trapani, Italy; (S.M.); (R.A.); (G.R.); (G.F.); (A.S.)
| | - Rosaria Arena
- Dipartimento di Scienze della terra e del Mare DiSTeM, Laboratorio di Biochimica Marina ed Ecotossicologia, Università degli Studi di Palermo, Via G. Barlotta 4, 91100 Trapani, Italy; (S.M.); (R.A.); (G.R.); (G.F.); (A.S.)
| | - Giuseppe Renda
- Dipartimento di Scienze della terra e del Mare DiSTeM, Laboratorio di Biochimica Marina ed Ecotossicologia, Università degli Studi di Palermo, Via G. Barlotta 4, 91100 Trapani, Italy; (S.M.); (R.A.); (G.R.); (G.F.); (A.S.)
| | - Giovanna Ficano
- Dipartimento di Scienze della terra e del Mare DiSTeM, Laboratorio di Biochimica Marina ed Ecotossicologia, Università degli Studi di Palermo, Via G. Barlotta 4, 91100 Trapani, Italy; (S.M.); (R.A.); (G.R.); (G.F.); (A.S.)
| | - Mariano Randazzo
- Istituto di Biologia Marina, Consorzio Universitario della Provincia di Trapani, Via G. Barlotta 4, 91100 Trapani, Italy;
| | - Stefano Fricano
- Dipartimento di Science Economiche, Aziendali e Statistiche, DSEAS, Università degli Studi di Palermo, Viale delle Scienze, Edificio 13, 90100 Palermo, Italy;
| | - Saloua Sadok
- Laboratory of Blue Biotechnology & Aquatic Bioproducts (B3Aqua), Institut National des Sciences et Technologies de la Mer (INSTM), Annexe La Goulette Port de Pêche, La Goulette 2060, Tunisia;
| | - Andrea Santulli
- Dipartimento di Scienze della terra e del Mare DiSTeM, Laboratorio di Biochimica Marina ed Ecotossicologia, Università degli Studi di Palermo, Via G. Barlotta 4, 91100 Trapani, Italy; (S.M.); (R.A.); (G.R.); (G.F.); (A.S.)
- Istituto di Biologia Marina, Consorzio Universitario della Provincia di Trapani, Via G. Barlotta 4, 91100 Trapani, Italy;
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Thacker M, Chen YN, Lin CP, Lin FH. Nitrogen-Doped Titanium Dioxide Mixed with Calcium Peroxide and Methylcellulose for Dental Bleaching under Visible Light Activation. Int J Mol Sci 2021; 22:ijms22073759. [PMID: 33916642 PMCID: PMC8038621 DOI: 10.3390/ijms22073759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 11/16/2022] Open
Abstract
The available tooth whitening products in the market contain high concentrations of hydrogen peroxide (H2O2) as an active ingredient. Therefore, in order to curb the high H2O2 concentration and instability of liquid H2O2, this study evaluated the efficacy and cytotoxicity of the bleaching gel composed of 10% calcium peroxide (CaO2) and visible-light-activating nitrogen-doped titanium dioxide (N-TiO2) with methyl cellulose as a thickener. Extracted bovine teeth were discolored using coffee and black tea stain solution and were divided into two groups (n = 6). Bleaching was performed thrice on each tooth specimen in both the groups, with one minute of visible light irradiation during each bleaching time. The CIELAB L*a*b* values were measured pre- and post-bleaching. The N-TiO2 calcinated at 350 °C demonstrated a shift towards the visible light region by narrowing the band gap energy from 3.23 eV to 2.85 eV. The brightness (ΔL) and color difference (ΔE) increased as bleaching progressed each time in both the groups. ANOVA results showed that the number of bleaching significantly affected ΔE (p < 0.05). The formulated bleaching gel exhibits good biocompatibility and non-toxicity upon exposure to 3T3 cells. Our findings showed that CaO2-based bleaching gel at neutral pH could be a stable, safe, and effective substitute for tooth whitening products currently available in the market.
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Affiliation(s)
- Minal Thacker
- Graduate Institute of Biomedical Engineering, National Taiwan University, Taipei 10051, Taiwan; (M.T.); (Y.-N.C.)
| | - Yi-Ning Chen
- Graduate Institute of Biomedical Engineering, National Taiwan University, Taipei 10051, Taiwan; (M.T.); (Y.-N.C.)
| | - Chun-Pin Lin
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei 10617, Taiwan;
- National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
| | - Feng-Huei Lin
- Graduate Institute of Biomedical Engineering, National Taiwan University, Taipei 10051, Taiwan; (M.T.); (Y.-N.C.)
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County 35053, Taiwan
- Correspondence: ; Tel.: +886-928-260-400
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Suehara Y, Kohsaka S, Hayashi T, Akaike K, Kurisaki-Arakawa A, Sato S, Kobayashi E, Mizuno S, Ueno T, Morii T, Okuma T, Kurihara T, Hasegawa N, Sano K, Sasa K, Okubo T, Kim Y, Mano H, Saito T. Identification of a Novel MAN1A1-ROS1 Fusion Gene Through mRNA-based Screening for Tyrosine Kinase Gene Aberrations in a Patient with Leiomyosarcoma. Clin Orthop Relat Res 2021; 479:838-852. [PMID: 33196586 PMCID: PMC8083907 DOI: 10.1097/corr.0000000000001548] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 10/06/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Soft tissue sarcomas are a heterogeneous group of rare malignant tumors. Advanced soft tissue sarcomas have a poor prognosis, and effective systemic therapies have not been established. Tyrosine kinases are increasingly being used as therapeutic targets for a variety of cancers and soft tissue sarcomas. Although complex karyotype sarcomas typically tend to carry more potentially actionable genetic alterations than do translocation-associated sarcomas (fusion gene sarcomas), based on our database review, we found that leiomyosarcoma and malignant peripheral nerve sheath tumors have lower frequencies of potential targets than other nontranslocation soft tissue sarcomas. We theorized that both leiomyosarcoma and malignant peripheral nerve sheath tumors might be included in any unique translocations. Furthermore, if tyrosine kinase imbalances, especially fusion genes, occur in patients with leiomyosarcomas and malignant peripheral nerve sheath tumors, tyrosine kinase inhibitors might be a drug development target for this sarcoma. In this study, we used a tyrosine kinase screening system that could detect an imbalance in mRNA between 5'- and 3'-sides in tyrosine kinase genes to identify potential novel therapeutic tyrosine kinase targets for soft tissue sarcomas. QUESTIONS/PURPOSES (1) Are there novel therapeutic tyrosine kinase targets in tumors from patients with soft tissue sarcomas that are detectable using mRNA screening focusing on imbalance expressions between the 5' and 3' end of the kinase domain? (2) Can potential targets be verified by RNA sequencing and reverse transcription PCR (RT-PCR)? (3) Will potential fusion gene(s) transform cells in in vitro assays? (4) Will tumors in mice that have an identified fusion gene respond to treatment with a therapeutic drug directed at that target? METHODS We used mRNA screening to look for novel tyrosine kinase targets that might be of therapeutic potential. Using functional assays, we verified whether the identified fusion genes would be good therapeutic candidates for soft tissue sarcomas. Additionally, using in vivo assays, we assessed whether suppressing the fusion's kinase activity has therapeutic potential. Study eligibility was based on a patient having high-grade spindle cell and nontranslocation sarcomas, including leiomyosarcoma, malignant peripheral nerve sheath tumor, and high-grade myxofibrosarcoma. Between 2015 and 2019, of the 172 patients with soft tissue sarcomas treated with surgical resection at Juntendo University Hospital, 72 patients had high-grade nontranslocation sarcomas. The analysis was primarily for leiomyosarcoma and malignant peripheral nerve sheath tumors, and there was a limitation of analysis size (reagent limitations) totaling 24 samples at the start of the study. We collected additional samples from a sample bank at the Tokyo Medical and Dental University to increase the number of sarcomas to study. Therefore, in this study, a total of 15 leiomyosarcoma samples, five malignant peripheral nerve sheath tumors samples, and four high-grade myxofibrosarcoma samples were collected to achieve the sample size of 24 patients. To identify tyrosine kinase fusion genes, we designed a NanoString-based assay (NanoString Technologies Inc, Seattle, WA, USA) to query the expression balances regarding transcripts of 90 tyrosine kinases at two points: the 5' end of the kinase domain and within the kinase domain or 3' end of the kinase domain. The tumor's RNA was hybridized to the NanoString probes and analyzed for the expression ratios of outliers from the 3' to 5' end of the kinase domain. Presumed novel fusion events in these positive tumors that were defined by NanoString-based assays were confirmed tyrosine kinase fusion genes by RNA sequencing and confirmatory RT-PCR. Functional analyses consisting of in vitro and in vivo assays were also performed to elucidate whether the identified tyrosine kinase gene fusions were associated with oncogenic abilities and drug responses. RESULTS We identified aberrant expression ratios regarding the 3' to 5' end of the kinase domain ratios in ROS1 transcripts in a leiomyosarcoma in a 90-year-old woman. A novel MAN1A1-ROS1 fusion gene was identified from her thigh tumor through RNA sequencing, which was confirmed with real-time PCR. In functional assays, MAN1A1-ROS1 rearrangement revealed strong transforming potential in 3T3 cells. Moreover, in an in vivo assay, crizotinib, a ROS1 inhibitor, markedly inhibited the growth of MAN1A1-ROS1 rearrangement-induced transformed cells in a dose-dependent manner. CONCLUSION We conducted tyrosine kinase screening to identify new therapeutic targets in soft tissue sarcomas. We found a novel MAN1A1-ROS1 fusion gene that may be a therapeutic target in patients with leiomyosarcoma. This study demonstrates that the mRNA screening system may aid in the development of useful therapeutic options for soft tissue sarcomas. CLINICAL RELEVANCE If novel tyrosine fusions such as MAN1A1-ROS1 fusion can be found in sarcomas from other patients, they could offer avenues for new molecular target therapies for sarcomas that currently do not have effective chemotherapeutic options. Therefore, the establishment of a screening system that includes both genomic and transcript analyses in the clinical setting is needed to verify our discoveries and take the developmental process of treatment to the next step.
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Affiliation(s)
- Yoshiyuki Suehara
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Shinji Kohsaka
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Takuo Hayashi
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Keisuke Akaike
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Aiko Kurisaki-Arakawa
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Shingo Sato
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Eisuke Kobayashi
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Sho Mizuno
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Toshihide Ueno
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Takeshi Morii
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Tomotake Okuma
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Taisei Kurihara
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Nobuhiko Hasegawa
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Kei Sano
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Keita Sasa
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Taketo Okubo
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Youngji Kim
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Hiroyuki Mano
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Tsuyoshi Saito
- Y. Suehara, K. Akaike, T. Kurihara, N. Hasegawa, K. Sano, K. Sasa, T. Okubo, Y. Kim, Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
- S. Kohsaka, S. Mizuno, T. Ueno, N. Hasegawa, H. Mano, Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- T. Hayashi, A. Kurisaki-Arakawa, T. Saito, Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- S. Sato, Center for Innovative Cancer Treatment, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- E. Kobayashi, Division of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
- T. Morii, Department of Orthopedic Surgery, Kyorin University, Faculty of Medicine, Tokyo, Japan
- T. Okuma, Department of Musculoskeletal Oncology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
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da Costa Fernandes C, Rodríguez VMO, Soares-Costa A, Cirelli JA, Justino DMN, Roma B, Zambuzzi WF, Faria G. Cystatin-like protein of sweet orange (CsinCPI-2) modulates pre-osteoblast differentiation via β-Catenin involvement. J Mater Sci Mater Med 2021; 32:33. [PMID: 33751248 PMCID: PMC7985097 DOI: 10.1007/s10856-021-06504-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 03/07/2021] [Indexed: 06/12/2023]
Abstract
Phytocystatins are endogenous cysteine-protease inhibitors present in plants. They are involved in initial germination rates and in plant defense mechanisms against phytopathogens. Recently, a new phytocystatin derived from sweet orange, CsinCPI-2, has been shown to inhibit the enzymatic activity of human cathepsins, presenting anti-inflammatory potential and pro-osteogenic effect in human dental pulp cells. The osteogenic potential of the CsinCPI-2 protein represents a new insight into plants cysteine proteases inhibitors and this effect needs to be better addressed. The aim of this study was to investigate the performance of pre-osteoblasts in response to CsinCPI-2, mainly focusing on cell adhesion, proliferation and differentiation mechanisms. Together our data show that in the first hours of treatment, protein in CsinCPI-2 promotes an increase in the expression of adhesion markers, which decrease after 24 h, leading to the activation of Kinase-dependent cyclines (CDKs) modulating the transition from G1 to S phases cell cycle. In addition, we saw that the increase in ERK may be associated with activation of the differentiation profile, also observed with an increase in the B-Catenin pathway and an increase in the expression of Runx2 in the group that received the treatment with CsinCPI-2.
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Affiliation(s)
- Célio da Costa Fernandes
- Department of Chemistry and Biochemistry, Laboratory of Bioassays and Cell Dynamics, Institute of Biosciences, Sao Paulo State University - UNESP, Botucatu, São Paulo, Brazil
| | - Victor Manuel Ochoa Rodríguez
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, São Paulo, Brazil
| | - Andrea Soares-Costa
- Department of Genetic and Evolution, Federal University of Sao Carlos, São Carlos, Brazil
| | - Joni Augusto Cirelli
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University-UNESP, Araraquara, São Paulo, Brazil
| | | | - Bárbara Roma
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, São Paulo, Brazil
| | - Willian Fernando Zambuzzi
- Department of Chemistry and Biochemistry, Laboratory of Bioassays and Cell Dynamics, Institute of Biosciences, Sao Paulo State University - UNESP, Botucatu, São Paulo, Brazil.
| | - Gisele Faria
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, São Paulo, Brazil.
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Yoon SY, Yu JS, Hwang JY, So HM, Seo SO, Kim JK, Jang TS, Chung SJ, Kim KH. Phloridzin Acts as an Inhibitor of Protein-Tyrosine Phosphatase MEG2 Relevant to Insulin Resistance. Molecules 2021; 26:molecules26061612. [PMID: 33799458 PMCID: PMC7998658 DOI: 10.3390/molecules26061612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/06/2021] [Accepted: 03/07/2021] [Indexed: 11/16/2022] Open
Abstract
Inhibition of the megakaryocyte protein tyrosine phosphatase 2 (PTP-MEG2, also named PTPN9) activity has been shown to be a potential therapeutic strategy for the treatment of type 2 diabetes. Previously, we reported that PTP-MEG2 knockdown enhances adenosine monophosphate activated protein kinase (AMPK) phosphorylation, suggesting that PTP-MEG2 may be a potential antidiabetic target. In this study, we found that phloridzin, isolated from Ulmus davidiana var. japonica, inhibits the catalytic activity of PTP-MEG2 (half-inhibitory concentration, IC50 = 32 ± 1.06 μM) in vitro, indicating that it could be a potential antidiabetic drug candidate. Importantly, phloridzin stimulated glucose uptake by differentiated 3T3-L1 adipocytes and C2C12 muscle cells compared to that by the control cells. Moreover, phloridzin led to the enhanced phosphorylation of AMPK and Akt relevant to increased insulin sensitivity. Importantly, phloridzin attenuated palmitate-induced insulin resistance in C2C12 muscle cells. We also found that phloridzin did not accelerate adipocyte differentiation, suggesting that phloridzin improves insulin sensitivity without significant lipid accumulation. Taken together, our results demonstrate that phloridzin, an inhibitor of PTP-MEG2, stimulates glucose uptake through the activation of both AMPK and Akt signaling pathways. These results strongly suggest that phloridzin could be used as a potential therapeutic candidate for the treatment of type 2 diabetes.
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Affiliation(s)
- Sun-Young Yoon
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.-Y.Y.); (J.S.Y.); (J.Y.H.); (H.M.S.); (S.O.S.)
- Department of Cosmetic Science, Kwangju Women’s University, Gwangju 62396, Korea
| | - Jae Sik Yu
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.-Y.Y.); (J.S.Y.); (J.Y.H.); (H.M.S.); (S.O.S.)
| | - Ji Young Hwang
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.-Y.Y.); (J.S.Y.); (J.Y.H.); (H.M.S.); (S.O.S.)
| | - Hae Min So
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.-Y.Y.); (J.S.Y.); (J.Y.H.); (H.M.S.); (S.O.S.)
| | - Seung Oh Seo
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.-Y.Y.); (J.S.Y.); (J.Y.H.); (H.M.S.); (S.O.S.)
| | - Jung Kyu Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea;
| | - Tae Su Jang
- Department of Medicine, Dankook University, Cheonan, Chungnam 31116, Korea;
| | - Sang J. Chung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.-Y.Y.); (J.S.Y.); (J.Y.H.); (H.M.S.); (S.O.S.)
- Correspondence: (S.J.C.); (K.H.K.); Tel.: +82-31-290-7703 (S.J.C.); +82-31-290-7700 (K.H.K.)
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.-Y.Y.); (J.S.Y.); (J.Y.H.); (H.M.S.); (S.O.S.)
- Correspondence: (S.J.C.); (K.H.K.); Tel.: +82-31-290-7703 (S.J.C.); +82-31-290-7700 (K.H.K.)
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D’Souza AR, Necelis MR, Kulesha A, Caputo GA, Makhlynets OV. Beneficial Impacts of Incorporating the Non-Natural Amino Acid Azulenyl-Alanine into the Trp-Rich Antimicrobial Peptide buCATHL4B. Biomolecules 2021; 11:421. [PMID: 33809374 PMCID: PMC8001250 DOI: 10.3390/biom11030421] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/01/2021] [Accepted: 03/09/2021] [Indexed: 12/15/2022] Open
Abstract
Antimicrobial peptides (AMPs) present a promising scaffold for the development of potent antimicrobial agents. Substitution of tryptophan by non-natural amino acid Azulenyl-Alanine (AzAla) would allow studying the mechanism of action of AMPs by using unique properties of this amino acid, such as ability to be excited separately from tryptophan in a multi-Trp AMPs and environmental insensitivity. In this work, we investigate the effect of Trp→AzAla substitution in antimicrobial peptide buCATHL4B (contains three Trp side chains). We found that antimicrobial and bactericidal activity of the original peptide was preserved, while cytocompatibility with human cells and proteolytic stability was improved. We envision that AzAla will find applications as a tool for studies of the mechanism of action of AMPs. In addition, incorporation of this non-natural amino acid into AMP sequences could enhance their application properties.
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Affiliation(s)
- Areetha R. D’Souza
- Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244, USA; (A.R.D.); (A.K.)
| | - Matthew R. Necelis
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, USA; (M.R.N.); (G.A.C.)
| | - Alona Kulesha
- Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244, USA; (A.R.D.); (A.K.)
| | - Gregory A. Caputo
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, USA; (M.R.N.); (G.A.C.)
- Department of Molecular & Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA
| | - Olga V. Makhlynets
- Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244, USA; (A.R.D.); (A.K.)
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78
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Mandrup OA, Ong SC, Lykkemark S, Dinesen A, Rudnik-Jansen I, Dagnæs-Hansen NF, Andersen JT, Alvarez-Vallina L, Howard KA. Programmable half-life and anti-tumour effects of bispecific T-cell engager-albumin fusions with tuned FcRn affinity. Commun Biol 2021; 4:310. [PMID: 33686177 PMCID: PMC7940400 DOI: 10.1038/s42003-021-01790-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/01/2021] [Indexed: 01/05/2023] Open
Abstract
Fc-less bispecific T-cell engagers have reached the immuno-oncology market but necessitate continual infusion due to rapid clearance from the circulation. This work introduces a programmable serum half-life extension platform based on fusion of human albumin sequences engineered with either null (NB), wild type (WT) or high binding (HB) FcRn affinity combined with a bispecific T-cell engager. We demonstrate in a humanised FcRn/albumin double transgenic mouse model (AlbuMus) the ability to tune half-life based on the albumin sequence fused with a BiTE-like bispecific (anti-EGFR nanobody x anti-CD3 scFv) light T-cell engager (LiTE) construct [(t½ 0.6 h (Fc-less LiTE), t½ 19 hours (Albu-LiTE-NB), t½ 26 hours (Albu-LiTE-WT), t½ 37 hours (Albu-LiTE-HB)]. We show in vitro cognate target engagement, T-cell activation and discrimination in cellular cytotoxicity dependent on EGFR expression levels. Furthermore, greater growth inhibition of EGFR-positive BRAF mutated tumours was measured following a single dose of Albu-LiTE-HB construct compared to the Fc-less LiTE format and a full-length anti-EGFR monoclonal antibody in a new AlbuMus RAG1 knockout model introduced in this work. Programmable half-life extension facilitated by this albumin platform potentially offers long-lasting effects, better patient compliance and a method to tailor pharmacokinetics to maximise therapeutic efficacy and safety of immuno-oncology targeted biologics.
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MESH Headings
- 3T3 Cells
- Animals
- Antibodies, Bispecific/metabolism
- Antibodies, Bispecific/pharmacokinetics
- Antineoplastic Agents, Immunological/metabolism
- Antineoplastic Agents, Immunological/pharmacokinetics
- CHO Cells
- Cricetulus
- Drug Compounding
- Female
- HEK293 Cells
- HT29 Cells
- Half-Life
- Histocompatibility Antigens Class I/metabolism
- Homeodomain Proteins/genetics
- Humans
- Jurkat Cells
- Lymphocyte Activation/drug effects
- MCF-7 Cells
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Neoplasms/drug therapy
- Neoplasms/immunology
- Neoplasms/pathology
- Proof of Concept Study
- Protein Binding
- Receptors, Fc/metabolism
- Recombinant Fusion Proteins/metabolism
- Recombinant Fusion Proteins/pharmacokinetics
- Serum Albumin, Human/genetics
- Serum Albumin, Human/metabolism
- Serum Albumin, Human/pharmacokinetics
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- Tumor Burden/drug effects
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Ole A Mandrup
- Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark
| | - Sui Ching Ong
- Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark
| | - Simon Lykkemark
- Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark
| | - Anders Dinesen
- Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark
| | - Imke Rudnik-Jansen
- Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark
| | | | - Jan Terje Andersen
- Department of Immunology, University of Oslo, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Institute of Clinical Medicine and Department of Pharmacology, University of Oslo, Oslo, Norway
| | - Luis Alvarez-Vallina
- Cancer Immunotherapy Unit (UNICA), Department of Immunology, Hospital Universitario 12 de Octubre, Madrid, Spain
- Immuno-Oncology and Immunotherapy Group, Instituto de Investigación Sanitaria 12 de Octubre (i + mas12), Madrid, Spain
| | - Kenneth A Howard
- Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark.
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79
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Navaneethan B, Vijayakumar GP, Ashang Luwang L, Karuppiah S, Jayarama Reddy V, Ramakrishna S, Chou CF. Novel Self-Directing Single-Polymer Jet Developing Layered-Like 3D Buckled Microfibrous Scaffolds for Tissue Engineering Applications. ACS Appl Mater Interfaces 2021; 13:9691-9701. [PMID: 33605136 DOI: 10.1021/acsami.0c22028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrospinning is a promising technique for the fabrication of bioscaffolds in tissue engineering applications. Pertaining issues of multiple polymer jets and bending instabilities result in random paths which lend poor controllability over scaffolds morphology for affecting the porosity and mechanical stability. The present study alleviates these challenges by demonstrating a novel self-directing single jet taking a specifically patterned path to deposit fibers into circular and uniform scaffolds without tuning any externally controlled parameters. High-speed camera observation revealed that the charge retention and dissipation on the collected fibers caused rapid autojet switching between the two jetting modes, namely, a microcantilever-like armed jet motion and a whipping motion, which sequentially expand the area and thickness of the scaffolds, respectively, in a layered-like fashion. The physical properties showed that the self-switching dual-jet modes generated multilayered microfibrous scaffolds (MFSs) with dual morphologies and varied fiber packing density, thereby establishing the gradient porosity and mechanical strength (through buckled fibers) in the scaffolds. In vitro studies showed that as-spun scaffolds are cell-permeable hierarchical 3D microporous structures enabling lateral cell seeding into multiple layers. The cell proliferation on days 6 and 9 increased 21% and 38% correspondingly on MFSs than on nanofibrous scaffolds (NFSs) done by conventional multijets electrospinning. Remarkably, this novel and single-step process is highly reproducible and tunable for developing fibrous scaffolds for tissue engineering applications.
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Affiliation(s)
- Balchandar Navaneethan
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan, R.O.C
- Nano Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan, R.O.C
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Gnaneshwar Puvala Vijayakumar
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan, R.O.C
- Nano Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan, R.O.C
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Laiva Ashang Luwang
- Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2 D02 YN77, Ireland
| | - Stalin Karuppiah
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan, R.O.C
- Nano Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan, R.O.C
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan, R.O.C
| | - Venugopal Jayarama Reddy
- Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Gambang 26300, Malaysia
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore
| | - Chia-Fu Chou
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan, R.O.C
- Genomics Research Center and Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan, R.O.C
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80
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Odei-Addo F, Ramlugon S, Levendal RA, Frost CL. Leonotis Leonurus improves the crosstalk between peripheral tissues both in vivo and in vitro. J Ethnopharmacol 2021; 267:113609. [PMID: 33242621 DOI: 10.1016/j.jep.2020.113609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 10/21/2020] [Accepted: 11/19/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Unravelling the anti-diabetic mechanism of action of L. leonurus at adipose, liver, muscle and pancreatic level. AIMS To investigate the mechanism of action of an organic extract of L. leonurus and marrubiin at the gene level in adipose, liver and muscle tissues of an obese rat model and in a co-culture model. MATERIALS AND METHODS Obese Wistar rats were fed a cafeteria diet for eight weeks, treated with an extract of L. Leonurus, marrubiin, sulfonylurea and aspirin for two weeks and the level of gene expression of selected markers were investigated across different tissues. The effects mediated by the different treatments were investigated in co-culture cell models involving 3T3-L1 (fat), Chang (liver), C2C12 (muscle) and INS-1 (pancreatic) cells under both normal and hyperglycemic conditions. RESULTS L. leonurus extract mediated a significant increase in PPAR gamma, glucokinase, FAS and UCP2 gene expression in adipose tissue, whilst the opposite was observed in the liver. At the muscle level, a significant increase in FAS gene expression was observed relative to the obese control rats. Furthermore, the extract as well as marrubiin, modulated improvements in the adipokine profile. The co-culture models showed that the effect mediated by the extract was dependent on, the tissue type as well as the glycemic conditions. CONCLUSIONS L. Leonurus extract as well as marrubiin exhibit anti-diabetic properties where the mechanism of action is mainly at the adipose tissue level. The increase in expression of the genes of interest mentioned above potentially play a protective role towards the liver and possibly towards the muscle tissues as well.
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Affiliation(s)
- F Odei-Addo
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa
| | - S Ramlugon
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa
| | - R-A Levendal
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa
| | - C L Frost
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa.
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81
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Susano P, Silva J, Alves C, Martins A, Gaspar H, Pinteus S, Mouga T, Goettert MI, Petrovski Ž, Branco LB, Pedrosa R. Unravelling the Dermatological Potential of the Brown Seaweed Carpomitra costata. Mar Drugs 2021; 19:135. [PMID: 33671016 PMCID: PMC7997182 DOI: 10.3390/md19030135] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/21/2021] [Accepted: 02/23/2021] [Indexed: 12/25/2022] Open
Abstract
The ever-increasing interest in keeping a young appearance and healthy skin has leveraged the skincare industry. This, coupled together with the increased concern regarding the safety of synthetic products, has boosted the demand for new and safer natural ingredients. Accordingly, the aim of this study was to evaluate the dermatological potential of the brown seaweed Carpomitra costata. The antioxidant, anti-enzymatic, antimicrobial, photoprotective and anti-inflammatory properties of five C. costata fractions (F1-F5) were evaluated. The ethyl acetate fraction (F3) demonstrated the most promising results, with the best ability to scavenge 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals (EC50 of 140.1 µg/mL) and the capacity to reduce reactive oxygen species (ROS) production promoted by UVA and UVB radiation in 3T3 cells, revealing its antioxidant and photoprotective potential. This fraction also exhibited the highest anti-enzymatic capacity, inhibiting the activities of collagenase, elastase and tyrosinase (IC50 of 7.2, 4.8 and 85.9 µg/mL, respectively). Moreover, F3 showed anti-inflammatory potential, reducing TNF-α and IL-6 release induced by LPS treatment in RAW 264.7 cells. These bioactivities may be related to the presence of phenolic compounds, such as phlorotannins, as demonstrated by NMR analysis. The results highlight the potential of C. costata as a source of bioactive ingredients for further dermatological applications.
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Affiliation(s)
- Patrícia Susano
- MARE—Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (P.S.); (J.S.); (A.M.); (H.G.); (S.P.)
| | - Joana Silva
- MARE—Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (P.S.); (J.S.); (A.M.); (H.G.); (S.P.)
| | - Celso Alves
- MARE—Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (P.S.); (J.S.); (A.M.); (H.G.); (S.P.)
| | - Alice Martins
- MARE—Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (P.S.); (J.S.); (A.M.); (H.G.); (S.P.)
| | - Helena Gaspar
- MARE—Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (P.S.); (J.S.); (A.M.); (H.G.); (S.P.)
- BioISI-Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, 1749-016 Lisboa, Portugal
| | - Susete Pinteus
- MARE—Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (P.S.); (J.S.); (A.M.); (H.G.); (S.P.)
| | - Teresa Mouga
- MARE—Marine and Environmental Sciences Centre, ESTM, Polytechnic of Leiria, 2520-614 Peniche, Portugal;
| | - Márcia Ines Goettert
- Cell Culture Laboratory, Postgraduate Programme in Biotechnology, University of Vale do Taquari-Univates, Lajeado, RS 95914-014, Brazil;
| | - Željko Petrovski
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (Ž.P.); (L.B.B.)
| | - Luís B. Branco
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (Ž.P.); (L.B.B.)
| | - Rui Pedrosa
- MARE—Marine and Environmental Sciences Centre, ESTM, Polytechnic of Leiria, 2520-614 Peniche, Portugal;
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82
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Kubohara Y, Homma Y, Shibata H, Oshima Y, Kikuchi H. Dictyostelium Differentiation-Inducing Factor-1 Promotes Glucose Uptake, at Least in Part, via an AMPK-Dependent Pathway in Mouse 3T3-L1 Cells. Int J Mol Sci 2021; 22:2293. [PMID: 33669058 PMCID: PMC7956221 DOI: 10.3390/ijms22052293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/18/2021] [Accepted: 02/23/2021] [Indexed: 11/16/2022] Open
Abstract
Differentiation-inducing factor-1 (DIF-1) is a chlorinated alkylphenone (a polyketide) found in the cellular slime mold Dictyostelium discoideum. DIF-1 and its derivative, DIF-1(3M) promote glucose consumption in vitro in mammalian cells and in vivo in diabetic rats; they are expected to be the leading antiobesity and antidiabetes compounds. In this study, we investigated the mechanisms underlying the actions of DIF-1 and DIF-1(3M). In isolated mouse liver mitochondria, these compounds at 2-20 μM promoted oxygen consumption in a dose-dependent manner, suggesting that they act as mitochondrial uncouplers, whereas CP-DIF-1 (another derivative of DIF-1) at 10-20 μM had no effect. In confluent mouse 3T3-L1 fibroblasts, DIF-1 and DIF-1(3M) but not CP-DIF-1 induced phosphorylation (and therefore activation) of AMP kinase (AMPK) and promoted glucose consumption and metabolism. The DIF-induced glucose consumption was reduced by compound C (an AMPK inhibitor) or AMPK knock down. These data suggest that DIF-1 and DIF-1(3M) promote glucose uptake, at least in part, via an AMPK-dependent pathway in 3T3-L1 cells, whereas cellular metabolome analysis revealed that DIF-1 and DIF-1(3M) may act differently at least in part.
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Affiliation(s)
- Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba 270-1695, Japan
| | - Yoshimi Homma
- Department of Biomolecular Science, Institute of Biomedical Sciences, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan;
| | - Hiroshi Shibata
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan;
| | - Yoshiteru Oshima
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan; (Y.O.); (H.K.)
| | - Haruhisa Kikuchi
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan; (Y.O.); (H.K.)
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83
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Charrier A, Xu X, Guan BJ, Ngo J, Wynshaw-Boris A, Hatzoglou M, Buchner DA. Adipocyte-specific deletion of zinc finger protein 407 results in lipodystrophy and insulin resistance in mice. Mol Cell Endocrinol 2021; 521:111109. [PMID: 33285243 PMCID: PMC7813145 DOI: 10.1016/j.mce.2020.111109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/08/2020] [Accepted: 11/30/2020] [Indexed: 01/04/2023]
Abstract
PPARγ deficiency in humans and model organisms impairs the transcriptional control of adipogenesis and mature adipocyte function resulting in lipodystrophy and insulin resistance. Zinc finger protein 407 (ZFP407) positively regulates PPARγ target gene expression and insulin-stimulated glucose uptake in cultured adipocytes. The in vivo physiological role of ZFP407 in mature adipocytes, however, remains to be elucidated. Here we generated adipocyte-specific ZFP407 knockout (AZKO) mice and discovered a partial lipodystrophic phenotype with reduced fat mass, hypertrophic adipocytes in inguinal and brown adipose tissue, and reduced adipogenic gene expression. The lipodystrophy was further exacerbated in AZKO mice fed a high-fat diet. Glucose and insulin tolerance tests revealed decreased insulin sensitivity in AZKO mice compared to control littermates. Cell-based assays demonstrated that ZFP407 is also required for adipogenesis, which may also contribute to the lipodystrophic phenotype. These results demonstrate an essential in vivo role of ZFP407 in brown and white adipose tissue formation and organismal insulin sensitivity.
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Affiliation(s)
- Alyssa Charrier
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Xuan Xu
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Bo-Jhih Guan
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Justine Ngo
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Anthony Wynshaw-Boris
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Maria Hatzoglou
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - David A Buchner
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.
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84
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Hu H, Wang D, Li L, Yin H, He G, Zhang Y. Role of microRNA-335 carried by bone marrow mesenchymal stem cells-derived extracellular vesicles in bone fracture recovery. Cell Death Dis 2021; 12:156. [PMID: 33542183 PMCID: PMC7862274 DOI: 10.1038/s41419-021-03430-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 01/30/2023]
Abstract
Mesenchymal stem cells (MSCs) have the potential to reduce healing time and treat nonunion in fracture patients. In this study, bone marrow MSCs-derived extracellular vesicles (B-EVs) were firstly extracted and identified. CD9-/- and normal mice were enrolled for the establishment of fracture models and then injected with B-EVs. Osteoblast differentiation and fracture recovery were estimated. The levels of osteoblast-related genes were detected, and differentially expressed microRNAs (miRs) in B-EVs-treated normal fracture mice were screened and verified. The downstream mechanisms of miR were predicted and assessed. The loss-of functions of miR-335 in B-EV and gain-of-functions of VapB were performed in animal and cell experiments to evaluate their roles in bone fracture. Collectively, B-EVs promoted bone fracture recovery and osteoblast differentiation by releasing miR-335. miR-335 downregulation in B-EVs impaired B-EV functions in fracture recovery and osteoblast differentiation. miR-335 could target VapB, and VapB overexpression reversed the effects of B-EVs on osteoblast differentiation. B-EV treatment activated the Wnt/β-catenin pathway in fracture mice and osteoblasts-like cells. Taken together, the study suggested that B-EVs carry miR-335 to promote bone fracture recovery via VapB and the Wnt/β-catenin pathway. This study may offer insights into bone fracture treatment.
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Affiliation(s)
- Haifeng Hu
- Department of Orthopaedics, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Dong Wang
- Department of Orthopaedics, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Lihong Li
- Department of Clinical Laboratory, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Haiyang Yin
- Department of Orthopaedics, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Guoyu He
- Department of Orthopaedics, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yonghong Zhang
- Department of Orthopaedics, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
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85
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Simpson CL, Tokito MK, Uppala R, Sarkar MK, Gudjonsson JE, Holzbaur ELF. NIX initiates mitochondrial fragmentation via DRP1 to drive epidermal differentiation. Cell Rep 2021; 34:108689. [PMID: 33535046 PMCID: PMC7888979 DOI: 10.1016/j.celrep.2021.108689] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/23/2020] [Accepted: 12/30/2020] [Indexed: 12/20/2022] Open
Abstract
The epidermis regenerates continually to maintain a protective barrier at the body’s surface composed of differentiating keratinocytes. Maturation of this stratified tissue requires that keratinocytes undergo wholesale organelle degradation upon reaching the outermost tissue layers to form compacted, anucleate cells. Through live imaging of organotypic cultures of human epidermis, we find that regulated breakdown of mitochondria is critical for epidermal development. Keratinocytes in the upper layers initiate mitochondrial fragmentation, depolarization, and acidification upon upregulating the mitochondrion-tethered autophagy receptor NIX. Depleting NIX compromises epidermal maturation and impairs mitochondrial elimination, whereas ectopic NIX expression accelerates keratinocyte differentiation and induces premature mitochondrial fragmentation via the guanosine triphosphatase (GTPase) DRP1. We further demonstrate that inhibiting DRP1 blocks NIX-mediated mitochondrial breakdown and disrupts epidermal development. Our findings establish mitochondrial degradation as a key step in terminal keratinocyte differentiation and define a pathway operating via the mitophagy receptor NIX in concert with DRP1 to drive epidermal morphogenesis. Using live microscopy of human organotypic epidermis, Simpson et al. demonstrate how keratinocytes degrade their mitochondria in the upper tissue layers during their final stage of differentiation. By upregulating expression of the mitophagy receptor NIX, keratinocytes initiate DRP1- dependent mitochondrial fragmentation, a process critical for epidermal tissue maturation.
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Affiliation(s)
- Cory L Simpson
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mariko K Tokito
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ranjitha Uppala
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA; Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mrinal K Sarkar
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Erika L F Holzbaur
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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86
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Aderibigbe SA, Idowu SO, Olaniyi AA, Wright CW, Fatokun AA. Bioactivity and cytotoxicity profiling of vincosamide and strictosamide, anthelmintic epimers from Sarcocephalus latifolius (Smith) Bruce leaf. J Ethnopharmacol 2021; 265:113142. [PMID: 32697959 DOI: 10.1016/j.jep.2020.113142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/09/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The leaf of Sarcocephalus latifolius is known to be used traditionally by the Fulanis in Nigeria to deworm animals. As helminthosis remains a major constraint to profitable livestock production worldwide, a precarious situation aggravated by the advent of resistant parasites, the discovery of new anthelmintics is a priority, necessitating exploration of medicinal plants for their anthelmintic principles. AIM OF THE STUDY To identify and characterise compounds with anthelmintic activity from the leaf of Sarcocephalus latifolius. MATERIALS AND METHODS Powdered S. latifolius leaves were extracted by successive maceration with n-hexane, chloroform and acetone. The dried extracts were evaluated for anthelmintic activity against Haemonchus placei adult worms, and the most active extract was subjected to bioassay-guided chromatographic separations. The isolated compounds were evaluated for cytotoxicity against the mammalian HeLa and MC3T3-E1 cell lines, using alamar blue and CellTitreGloTM to quantify cell viability. LC50 values were computed from the in vitro anthelmintic activity data by fitting to a non-linear regression equation (variable slope). Isolated compounds were characterized using spectroscopic and mass spectrometric analyses. RESULTS Anthelmintic activity LC50 values for n-hexane, chloroform and acetone extracts were 47.85, 35.76 and 5.72 (mg/mL), respectively. Chromatographic separation of acetone extract afforded two bioactive epimers, identified as vincosamide (LC50 14.7 mg/mL) and strictosamide (LC50 12.8 mg/mL). Cytotoxicity evaluation showed that, below 200 μg/mL (400 μM), neither compound was toxic to the HeLa or MC3T3-E1 cells. CONCLUSION Vincosamide and strictosamide could serve as novel scaffolds for the development of anthelmintic derivatives with improved potency and helminth selectivity.
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Affiliation(s)
- Segun A Aderibigbe
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Ibadan, Oyo State, Nigeria; School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford, BD7 1DP, UK
| | - Sunday O Idowu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Ibadan, Oyo State, Nigeria.
| | - Ajibola A Olaniyi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Colin W Wright
- School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford, BD7 1DP, UK
| | - Amos A Fatokun
- School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford, BD7 1DP, UK.
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87
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Jia Z, Hast K, Izgu EC. Catecholamine-Copper Redox as a Basis for Site-Specific Single-Step Functionalization of Material Surfaces. ACS Appl Mater Interfaces 2021; 13:4711-4722. [PMID: 33444000 PMCID: PMC7990395 DOI: 10.1021/acsami.0c19396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Realization of robust and facile surface functionalization processes is critical to biomaterials and biotechnology yet remains a challenge. Here, we report a new chemical approach that enables operationally simple and site-specific surface functionalization. The mechanism involves a catechol-copper redox chemistry, where the oxidative polymerization of an alkynyl catecholamine reduces Cu(II) to Cu(I), which in situ catalyzes a click reaction with azide-containing molecules of interest (MOIs). This process enables drop-coating and grafting of two- and three-dimensional solid surfaces in a single operation using as small as sub-microliter volumes. Generalizability of the method is shown for immobilizing MOIs of diverse structure and chemical or biological activity. Biological applications in anti-biofouling, cellular adhesion, scaffold seeding, and tissue regeneration are demonstrated, in which the activities or fates of cells are site-specifically manipulated. This work advances surface chemistry by integrating simplicity and precision with multipurpose surface functionalization.
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Affiliation(s)
- Zhaojun Jia
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, New Jersey 08854, United States
| | - Kern Hast
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, New Jersey 08854, United States
| | - Enver Cagri Izgu
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, New Jersey 08854, United States
- Rutgers Center for Lipid Research, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, New Jersey 08901, United States
- Cancer Pharmacology Program, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey 08903, United States
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88
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Bachmann MP, Bartsch T, Bippes CC, Bachmann D, Puentes-Cala E, Bachmann J, Bartsch H, Arndt C, Koristka S, Loureiro LR, Kegler A, Laube M, Gross JK, Gross T, Kurien BT, Scofield RH, Farris AD, James JA, Schmitz M, Feldmann A. T Cell Mediated Conversion of a Non-Anti-La Reactive B Cell to an Autoreactive Anti-La B Cell by Somatic Hypermutation. Int J Mol Sci 2021; 22:1198. [PMID: 33530489 PMCID: PMC7865296 DOI: 10.3390/ijms22031198] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/20/2021] [Accepted: 01/22/2021] [Indexed: 12/18/2022] Open
Abstract
Since the first description of nuclear autoantigens in the late 1960s and early 1970s, researchers, including ourselves, have found it difficult to establish monoclonal antibodies (mabs) against nuclear antigens, including the La/SS-B (Sjögrens' syndrome associated antigen B) autoantigen. To date, only a few anti-La mabs have been derived by conventional hybridoma technology; however, those anti-La mabs were not bona fide autoantibodies as they recognize either human La specific, cryptic, or post-translationally modified epitopes which are not accessible on native mouse La protein. Herein, we present a series of novel murine anti-La mabs including truly autoreactive ones. These mabs were elicited from a human La transgenic animal through adoptive transfer of T cells from non-transgenic mice immunized with human La antigen. Detailed epitope and paratope analyses experimentally confirm the hypothesis that somatic hypermutations that occur during T cell dependent maturation can lead to autoreactivity to the nuclear La/SS-B autoantigen.
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Affiliation(s)
- Michael P. Bachmann
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
- University Cancer Center (UCC), Tumor Immunology, University Hospital Carl Gustav Carus Dresden, Technical University Dresden, 01307 Dresden, Germany; (D.B.); (J.B.)
- National Center for Tumor Diseases (NCT), 01307 Dresden, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Tabea Bartsch
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
| | - Claudia C. Bippes
- Institute of Immunology, Medical Faculty Carl Gustav Carus Dresden, Technical University Dresden, 01307 Dresden, Germany; (C.C.B.); (H.B.); (M.S.)
| | - Dominik Bachmann
- University Cancer Center (UCC), Tumor Immunology, University Hospital Carl Gustav Carus Dresden, Technical University Dresden, 01307 Dresden, Germany; (D.B.); (J.B.)
| | - Edinson Puentes-Cala
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
- Corporación para la Investigación de la Corrosión (CIC), Piedecuesta, Santander 681011, Colombia
| | - Jennifer Bachmann
- University Cancer Center (UCC), Tumor Immunology, University Hospital Carl Gustav Carus Dresden, Technical University Dresden, 01307 Dresden, Germany; (D.B.); (J.B.)
| | - Holger Bartsch
- Institute of Immunology, Medical Faculty Carl Gustav Carus Dresden, Technical University Dresden, 01307 Dresden, Germany; (C.C.B.); (H.B.); (M.S.)
| | - Claudia Arndt
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
| | - Stefanie Koristka
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
| | - Liliana R. Loureiro
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
| | - Alexandra Kegler
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
| | - Markus Laube
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
| | - Joanne K. Gross
- The Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation and University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.K.G.); (T.G.); (B.T.K.); (R.H.S.); (A.D.F.); (J.A.J.)
| | - Tim Gross
- The Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation and University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.K.G.); (T.G.); (B.T.K.); (R.H.S.); (A.D.F.); (J.A.J.)
| | - Biji T. Kurien
- The Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation and University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.K.G.); (T.G.); (B.T.K.); (R.H.S.); (A.D.F.); (J.A.J.)
| | - R. Hal Scofield
- The Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation and University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.K.G.); (T.G.); (B.T.K.); (R.H.S.); (A.D.F.); (J.A.J.)
| | - A. Darise Farris
- The Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation and University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.K.G.); (T.G.); (B.T.K.); (R.H.S.); (A.D.F.); (J.A.J.)
| | - Judith A. James
- The Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation and University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.K.G.); (T.G.); (B.T.K.); (R.H.S.); (A.D.F.); (J.A.J.)
| | - Marc Schmitz
- National Center for Tumor Diseases (NCT), 01307 Dresden, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Institute of Immunology, Medical Faculty Carl Gustav Carus Dresden, Technical University Dresden, 01307 Dresden, Germany; (C.C.B.); (H.B.); (M.S.)
| | - Anja Feldmann
- Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 03128 Dresden, Germany; (T.B.); (E.P.-C.); (C.A.); (S.K.); (L.R.L.); (A.K.); (M.L.); (A.F.)
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Zhang J, Zuo T, Yang J, Hu Z, Wang Z, Xu R, Ma S, Wei Y, Shen Q. Hierarchically Releasing Bio-Responsive Nanoparticles for Complete Tumor Microenvironment Modulation via TGF-β Pathway Inhibition and TAF Reduction. ACS Appl Mater Interfaces 2021; 13:2256-2268. [PMID: 33423468 DOI: 10.1021/acsami.0c18545] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The aggressive progression of breast cancer is impacted significantly by the tumor microenvironment (TME). The current chemotherapy normally causes cytotoxicity to tumor cells, while does not effectively modulate the TME. Thus, the chemotherapy effect of breast cancer is usually dissatisfactory. In this study, a kind of hierarchically releasing bio-responsive nanoparticles (R(D)/H(S) NPs), constructed by β-cyclodextrin-grafted heparin and pH-sensitive pseudorotaxane, were investigated to enhance the breast cancer chemotherapeutic efficacy through TME modulation. Doxorubicin (DOX) and transforming growth factor-β (TGF-β) receptor inhibitor (SB431542) loaded onto R(D)/H(S) NPs were released rapidly for the respective response to low pH in endosomes/lysosomes and heparanase (HPSE) in TME. Our results showed that R(D)/H(S) NPs effectively inhibited the formation of tumor-associated fibroblasts (TAFs) and reduced TGF-β and collagen I secretion. Besides, the immunosuppressive microenvironment was effectively reversed into immunogenic, characterized by increased CD8+ and CD4+ T cell infiltration, which distinctly inhibited breast cancer metastasis. Therefore, R(D)/H(S) NPs remodeled the TME by downregulating TAFs, TGF-β, and collagen I; activating the immune microenvironment; and then amplifying the chemotherapeutic efficacy of DOX.
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Affiliation(s)
- Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Tiantian Zuo
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jie Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zongwei Hu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhihua Wang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Rui Xu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Siyu Ma
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yawen Wei
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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90
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Sordi MB, Curtarelli RB, da Silva IT, Fongaro G, Benfatti CAM, de Souza Magini R, Cabral da Cruz AC. Effect of dexamethasone as osteogenic supplementation in in vitro osteogenic differentiation of stem cells from human exfoliated deciduous teeth. J Mater Sci Mater Med 2021; 32:1. [PMID: 33469820 PMCID: PMC7815568 DOI: 10.1007/s10856-020-06475-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 12/10/2020] [Indexed: 05/05/2023]
Abstract
In in vitro culture systems, dexamethasone (DEX) has been applied with ascorbic acid (ASC) and β-glycerophosphate (βGLY) as culture media supplementation to induce osteogenic differentiation of mesenchymal stem cells. However, there are some inconsistencies regarding the role of DEX as osteogenic media supplementation. Therefore, this study verified the influence of DEX culture media supplementation on the osteogenic differentiation, especially the capacity to mineralize the extracellular matrix of stem cells from human exfoliated deciduous teeth (SHED). Five groups were established: G1-SHED + Dulbecco's Modified Eagles' Medium (DMEM) + fetal bovine serum (FBS); G2-SHED + DMEM + FBS + DEX; G3-SHED + DMEM + FBS + ASC + βGLY; G4-SHED + DMEM + FBS + ASC + βGLY + DEX; G5-MC3T3-E1 + α Minimal Essential Medium (MEM) + FBS + ASC + βGLY. DNA content, alkaline phosphatase (ALP) activity, free calcium quantification in the extracellular medium, and extracellular matrix mineralization quantification through staining with von Kossa, alizarin red, and tetracycline were performed on days 7 and 21. Osteogenic media supplemented with ASC and β-GLY demonstrated similar effects on SHED in the presence or absence of DEX for DNA content (day 21) and capacity to mineralize the extracellular matrix according to alizarin red and tetracycline quantifications (day 21). In addition, the presence of DEX in the osteogenic medium promoted less ALP activity (day 7) and extracellular matrix mineralization according to the von Kossa assay (day 21), and more free calcium quantification at extracellular medium (day 21). In summary, the presence of DEX in the osteogenic media supplementation did not interfere with SHED commitment into mineral matrix depositor cells. We suggest that DEX may be omitted from culture media supplementation for SHED osteogenic differentiation in vitro studies.
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Affiliation(s)
- Mariane Beatriz Sordi
- Center for Research on Dental Implants, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil
- Laboratory of Applied Virology, Federal University of Santa Catarina, Henrique da Silva Fontes Avenue, Florianópolis, 88040-900, Brazil
| | - Raissa Borges Curtarelli
- Center for Research on Dental Implants, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil
- Laboratory of Applied Virology, Federal University of Santa Catarina, Henrique da Silva Fontes Avenue, Florianópolis, 88040-900, Brazil
| | - Izabella Thaís da Silva
- Laboratory of Applied Virology, Federal University of Santa Catarina, Henrique da Silva Fontes Avenue, Florianópolis, 88040-900, Brazil
- Department of Pharmaceutics Science, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil
| | - Gislaine Fongaro
- Laboratory of Applied Virology, Federal University of Santa Catarina, Henrique da Silva Fontes Avenue, Florianópolis, 88040-900, Brazil
- Department of Microbiology, Immunology, and Parasitology, Federal University of Santa Catarina, Henrique da Silva Fontes Avenue, Florianópolis, 88040-900, Brazil
| | - Cesar Augusto Magalhães Benfatti
- Center for Research on Dental Implants, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil
- Department of Dentistry, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil
| | - Ricardo de Souza Magini
- Center for Research on Dental Implants, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil
- Department of Dentistry, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil
| | - Ariadne Cristiane Cabral da Cruz
- Center for Research on Dental Implants, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil.
- Laboratory of Applied Virology, Federal University of Santa Catarina, Henrique da Silva Fontes Avenue, Florianópolis, 88040-900, Brazil.
- Department of Dentistry, Federal University of Santa Catarina, Delfino Conti Street, Florianópolis, 88040-900, Brazil.
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91
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Kivrak E, Pauzaite T, Copeland NA, Hardy JG, Kara P, Firlak M, Yardimci AI, Yilmaz S, Palaz F, Ozsoz M. Detection of CRISPR-Cas9-Mediated Mutations Using a Carbon Nanotube-Modified Electrochemical Genosensor. Biosensors (Basel) 2021; 11:bios11010017. [PMID: 33429883 PMCID: PMC7827051 DOI: 10.3390/bios11010017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 01/22/2023]
Abstract
The CRISPR-Cas9 system has facilitated the genetic modification of various model organisms and cell lines. The outcomes of any CRISPR-Cas9 assay should be investigated to ensure/improve the precision of genome engineering. In this study, carbon nanotube-modified disposable pencil graphite electrodes (CNT/PGEs) were used to develop a label-free electrochemical nanogenosensor for the detection of point mutations generated in the genome by using the CRISPR-Cas9 system. Carbodiimide chemistry was used to immobilize the 5'-aminohexyl-linked inosine-substituted probe on the surface of the sensor. After hybridization between the target sequence and probe at the sensor surface, guanine oxidation signals were monitored using differential pulse voltammetry (DPV). Optimization of the sensitivity of the nanogenoassay resulted in a lower detection limit of 213.7 nM. The nanogenosensor was highly specific for the detection of the precisely edited DNA sequence. This method allows for a rapid and easy investigation of the products of CRISPR-based gene editing and can be further developed to an array system for multiplex detection of different-gene editing outcomes.
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Affiliation(s)
- Ezgi Kivrak
- Department of Analytical Chemistry, Faculty of Pharmacy, Ege University, Izmir 35100, Turkey;
| | - Tekle Pauzaite
- Department of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YQ, UK; (T.P.); (N.A.C.)
| | - Nikki A. Copeland
- Department of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YQ, UK; (T.P.); (N.A.C.)
| | - John G. Hardy
- Department of Chemistry, Faculty of Science and Technology, Lancaster University, Lancaster LA1 4YB, UK; (J.G.H.); (M.F.)
- Materials Science Institute, Lancaster University, Lancaster LA1 4YB, UK
| | - Pinar Kara
- Department of Analytical Chemistry, Faculty of Pharmacy, Ege University, Izmir 35100, Turkey;
- Correspondence: (P.K.); (M.O.)
| | - Melike Firlak
- Department of Chemistry, Faculty of Science and Technology, Lancaster University, Lancaster LA1 4YB, UK; (J.G.H.); (M.F.)
- Department of Chemistry, Gebze Technical University, Gebze 41400, Turkey
| | - Atike I. Yardimci
- Department of Chemical Engineering, Izmir Institute of Technology, İzmir 35430, Turkey; (A.I.Y.); (S.Y.)
| | - Selahattin Yilmaz
- Department of Chemical Engineering, Izmir Institute of Technology, İzmir 35430, Turkey; (A.I.Y.); (S.Y.)
| | - Fahreddin Palaz
- Faculty of Medicine, Hacettepe University, Ankara 06100, Turkey;
| | - Mehmet Ozsoz
- Faculty of Engineering, Near East University, Lefkoşa 99138, Turkey
- Correspondence: (P.K.); (M.O.)
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92
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Starck M, Fradgley JD, Pal R, Zwier JM, Lamarque L, Parker D. Synthesis and Evaluation of Europium Complexes that Switch on Luminescence in Lysosomes of Living Cells. Chemistry 2021; 27:766-777. [PMID: 33197072 PMCID: PMC7839496 DOI: 10.1002/chem.202003992] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/14/2020] [Indexed: 12/14/2022]
Abstract
A set of four luminescent EuIII complexes bearing an extended aryl-alkynylpyridine chromophore has been studied, showing very different pH-dependent behaviour in their absorption and emission spectral response. For two complexes with pKa values of 6.45 and 6.20 in protein-containing solution, the emission lifetime increases very significantly following protonation. By varying the gate time during signal acquisition, the 'switch-on' intensity ratio could be optimised, and enhancement factors of between 250 to 1330 were measured between pH 8 and 4. The best-behaved probe showed no significant emission dependence on the concentration of endogenous cations, reductants, and serum albumin. It was examined in live-cell imaging studies to monitor time-dependent lysosomal acidification, for which the increase in observed image brightness due to acidification was a factor of 50 in NIH-3T3 cells.
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Affiliation(s)
- Matthieu Starck
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | - Jack D. Fradgley
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | - Robert Pal
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | | | - Laurent Lamarque
- Research and Development Cisbio BioassaysBP 8417530200CodoletFrance
| | - David Parker
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
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93
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Petrocchi C, Thétiot-Laurent S, Culcasi M, Pietri S. Novel Mitochondria-Targeted Triphenylphosphonium Conjugates of Linear β-Phosphorylated Nitrones : Preparation, 31P NMR Mitochondrial Distribution, EPR Spin Trapping Reporting, and Site-Directed Antiapoptotic Properties. Methods Mol Biol 2021; 2275:65-85. [PMID: 34118032 DOI: 10.1007/978-1-0716-1262-0_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The mitochondrion can be considered as the metabolic powerhouse of the cell, having a key impact on energy production, cell respiration, and intrinsic cell death. Mitochondria are also the main source of endogenous reactive oxygen species , including free radicals (FR), which are physiologically involved in signaling pathways but may promote cell damage when unregulated or excessively formed in inappropriate locations. A variety of chronic pathologies have been associated with FR-induced mitochondrial dysfunctions , such as cancer, age-related neurodegenerative diseases, and metabolic syndrome.In recent years drug design based on specific mitochondria-targeted antioxidants has become a very attractive therapeutic strategy and, among target compounds, nitrones have received growing attention because of their specific affinity toward FR. Here, we describe protocols dealing with the preparation, mitochondria permeation assessment, electron paramagnetic resonance (EPR) spin trapping setting, and antiapoptotic properties evaluation of a series of new linear nitrones vectorized by a triphenylphosphonium cation and labeled with a diethoxyphosphoryl moiety as 31P nuclear magnetic resonance (NMR) reporter with antioxidant property.
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Affiliation(s)
- Consuelo Petrocchi
- Aix Marseille Univ, CNRS, ICR, UMR 7273, Sondes Moléculaires en Biologie et Stress Oxydant, Marseille, France
| | - Sophie Thétiot-Laurent
- Aix Marseille Univ, CNRS, ICR, UMR 7273, Sondes Moléculaires en Biologie et Stress Oxydant, Marseille, France
| | - Marcel Culcasi
- Aix Marseille Univ, CNRS, ICR, UMR 7273, Sondes Moléculaires en Biologie et Stress Oxydant, Marseille, France
| | - Sylvia Pietri
- Aix Marseille Univ, CNRS, ICR, UMR 7273, Sondes Moléculaires en Biologie et Stress Oxydant, Marseille, France.
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94
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Van Kerckvoorde M, Ford MJ, Yeyati PL, Mill P, Mort RL. Live Imaging and Analysis of Cilia and Cell Cycle Dynamics with the Arl13bCerulean-Fucci2a Biosensor and Fucci Tools. Methods Mol Biol 2021; 2329:291-309. [PMID: 34085231 DOI: 10.1007/978-1-0716-1538-6_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The cell and cilia cycles are inextricably linked through the dual functions of the centrioles at both the basal body of cilia and at mitotic centrosomes. How cilia assembly and disassembly, either through slow resorption or rapid deciliation, are coordinated with cell cycle progression remains unclear in many cell types and developmental paradigms. Moreover, little is known about how additional cilia parameters including changes in ciliary length or frequency of distal tip shedding change with cell cycle stage. In order to explore these questions, we have developed the Arl13bCerulean-Fucci2a tricistronic cilia and cell cycle biosensor (Ford et al., Dev Cell 47:509-523.e7, 2018). This reporter allowed us to document the heterogeneity in ciliary behaviors during the cell cycle at a population level. Without the need for external stimuli, it revealed that in several cell types and in the developing embryo cilia persist beyond the G1/S checkpoint. Here, we describe the generation of stable cell lines expressing Arl13bCerulean-Fucci2a and open-source software to aid morphometric profiling of the primary cilium with cell cycle phases, including changes in cilium length. This resource will allow the investigation of multiple morphometric questions relating to cilia and cell cycle biology.
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Affiliation(s)
- Melinda Van Kerckvoorde
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
| | - Matthew J Ford
- Goodman Cancer Research Centre, Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Patricia L Yeyati
- MRC Human Genetics Unit, MRC Institute of Genetics & Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh, UK
| | - Pleasantine Mill
- MRC Human Genetics Unit, MRC Institute of Genetics & Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh, UK.
| | - Richard L Mort
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, UK.
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95
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Abstract
Melt electrospinning writing (MEW) is a solvent-free fabrication method for making polymer fiber scaffolds with features which include large surface area, high porosity, and controlled deposition of the fibers. These scaffolds are ideal for tissue engineering applications. Here we describe how to produce scaffolds made from poly(ε-caprolactone) using MEW and the seeding of primary human-derived dermal fibroblasts to create cell-scaffold constructs. The same methodology could be used with any number of cell types and MEW scaffold designs.
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Affiliation(s)
- Eleonore C L Bolle
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| | - Deanna Nicdao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| | - Paul D Dalton
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Würzburg, Germany.
| | - Tim R Dargaville
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.
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96
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Hunter TTJ, Fear D, Lavender P, Spencer J, Peakman M, Ibrahim MAA. Quantitative assessment of NFκB transcription factor activity. J Immunol Methods 2021; 492:112954. [PMID: 33388338 DOI: 10.1016/j.jim.2020.112954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 12/11/2020] [Accepted: 12/24/2020] [Indexed: 11/18/2022]
Abstract
The Nuclear Factor Kappa B (NFκB) pathway is an important signalling pathway in the immune system. Single gene defects in the NFκB pathway are described in a number of immunodeficiency diseases. These conditions provide a unique opportunity to investigate the mechanisms of NFκB function and how genetic mutations that disrupt this function lead to human disease. Here we describe a robust method for quantifying small differences in the functional activity of the NFκB pathway. Peripheral blood mononuclear cells from healthy donors were stimulated over several days, with a combination of anti-IgM antibody and multimeric CD40 ligand. Nuclear proteins were thereafter extracted and tested for the ability of activated transcription factors, to bind known NFκB DNA binding motifs. Repeatability experiments showed that the DNA binding Activity can be quantified with an average inter and intra assay coefficient of variation of less than 10% (RelB and p52) and less than 15% (p50 and RelA). In healthy individuals there is a significant increase in the DNA binding activity of NFκB transcription factors in response to stimulation, although the magnitude of this response varies across individuals. The kinetics of the DNA binding activity also differs between the canonical and non-canonical transcription factors. P50 and RelA DNA binding activity responds within hours of stimulation, whilst RelB and p52 response was delayed to more than a day after stimulation. Activation of NFκB signalling in response to B cell specific stimulation, can be precisely measured to distinguish individuals with differences in the functional activity of this pathway. This test may prove to be an important biomarker for investigating the functional impact of genetic variants on NFκB signalling.
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Affiliation(s)
- Terrence T J Hunter
- King's College London, King's Health Partners, King's College Hospital NHS Foundation Trust, School of Immunology & Microbial Sciences, Denmark Hill, London, UK; Viapath LLP, King's College Hospital, Denmark Hill, London, UK
| | - David Fear
- Immunobiology, School of Immunology & Microbial Sciences, King's College London, UK
| | - Paul Lavender
- Immunobiology, School of Immunology & Microbial Sciences, King's College London, UK
| | - Jo Spencer
- Immunobiology, School of Immunology & Microbial Sciences, King's College London, UK
| | - Mark Peakman
- Immunobiology, School of Immunology & Microbial Sciences, King's College London, UK
| | - Mohammad A A Ibrahim
- King's College London, King's Health Partners, King's College Hospital NHS Foundation Trust, School of Immunology & Microbial Sciences, Denmark Hill, London, UK.
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97
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Sha NN, Zhang JL, Poon CCW, Li WX, Li Y, Wang YF, Shi W, Lin FH, Lin WP, Wang YJ, Zhang Y. Differential responses of bone to angiotensin II and angiotensin(1-7): beneficial effects of ANG(1-7) on bone with exposure to high glucose. Am J Physiol Endocrinol Metab 2021; 320:E55-E70. [PMID: 33103451 DOI: 10.1152/ajpendo.00158.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Osteoporosis, diabetes, and hypertension are common concurrent chronic disorders. This study aimed to explore the respective effects of angiotensin II (ANG II) and angiotensin(1-7) [ANG(1-7)], active peptides in the renin-angiotensin system, on osteoblasts and osteoclasts under high-glucose level, as well as to investigate the osteo-preservative effects of ANG II type 1 receptor (AT1R) blocker and ANG(1-7) in diabetic spontaneously hypertensive rats (SHR). ANG II and ANG(1-7), respectively, decreased and increased the formation of calcified nodules and alkaline phosphatase activity in MC3T3-E1 cells under high-glucose level, and respectively stimulated and inhibited the number of matured osteoclasts and pit resorptive area in RANKL-induced bone marrow macrophages. Olmesartan and Mas receptor antagonist A779 could abolish those effects. ANG II and ANG(1-7), respectively, downregulated and upregulated the expressions of osteogenesis factors in MC3T3-E1 cells. ANG II promoted the expressions of cathepsin K and MMP9 in RAW 264.7 cells, whereas ANG(1-7) repressed these osteoclastogenesis factors. ANG II rapidly increased the phosphorylation of Akt and p38 in RAW 264.7 cells, whereas ANG(1-7) markedly reduced the phosphorylation of p38 and ERK under high-glucose condition. After treatments of diabetic SHR with valsartan and ANG(1-7), a significant increase in trabecular bone area, bone mineral density, and mechanical strength was only found in the ANG(1-7)-treated group. Treatment with ANG(1-7) significantly suppressed the increase in renin expression and ANG II content in the bone of SHR. Taken together, ANG II/AT1R and ANG(1-7)/Mas distinctly regulated the differentiation and functions of osteoblasts and osteoclasts upon exposure to high-glucose condition. ANG(1-7) could protect SHR from diabetes-induced osteoporosis.
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Affiliation(s)
- Nan-Nan Sha
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai, China
| | - Jia-Li Zhang
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Christina Chui-Wa Poon
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, China
| | - Wen-Xiong Li
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yue Li
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi-Fei Wang
- National TCM Clinical Research Base of Hypertension, the affiliated Hospital of Shandong University of TCM, Jinan, China
| | - Wei Shi
- National TCM Clinical Research Base of Hypertension, the affiliated Hospital of Shandong University of TCM, Jinan, China
| | - Fu-Hui Lin
- Department of Orthopaedic, Shenzhen Pingle Orthopaedic Hospital, Shenzhen, China
| | - Wen-Ping Lin
- Department of Orthopaedic, Shenzhen Pingle Orthopaedic Hospital, Shenzhen, China
| | - Yong-Jun Wang
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai, China
| | - Yan Zhang
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai, China
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98
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Dai H, Wang F, Kang Y, Sun J, Zhou H, Gao Q, Li Z, Qian P, Zhu G, Zhou Y. Adrenomedullin Attenuates Inflammation in White Adipose Tissue of Obese Rats Through Receptor-Mediated PKA Pathway. Obesity (Silver Spring) 2021; 29:86-97. [PMID: 32985779 PMCID: PMC7821304 DOI: 10.1002/oby.23012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Adrenomedullin (ADM) possesses therapeutic potential for inflammatory diseases. Consequently, the effects of ADM on inflammation in visceral white adipose tissue (vWAT) of obese rats or in adipocytes were explored in this study. METHODS Male rats were fed a high-fat diet for 12 weeks to induce obesity, and obese rats were implanted with osmotic minipumps providing constant infusion of ADM (300 ng/kg per hour) and continued to be fed a high-fat diet for 4 weeks. RESULTS When compared with the control group, endogenous protein expression of ADM and ADM receptors in vWAT and in lipopolysaccharide (LPS)-treated adipocytes was markedly increased. ADM significantly decreased the protein expression of the inflammatory mediators TNFα, IL-1β, cyclooxygenase-2, and inducible nitric oxide synthase in vWAT of obese rats and in adipocytes stimulated by LPS. It also inhibited the activation of the inflammatory signaling pathways MAPK and NF-κB induced by LPS in adipocytes. These effects of ADM in adipocytes were inhibited by the administration of ADM receptor antagonist and cAMP-dependent protein kinase (PKA) activation inhibitor. CONCLUSIONS ADM can inhibit inflammation in WAT in obesity, which may be mediated by the activation of ADM receptors and PKA.
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Affiliation(s)
- Hang‐Bing Dai
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Fang‐Zheng Wang
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Ying Kang
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Jing Sun
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Hong Zhou
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Qing Gao
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Zhen‐Zhen Li
- Department of CardiologyBenQ Medical CenterThe Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina
| | - Pei Qian
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Guo‐Qing Zhu
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Ye‐Bo Zhou
- Department of PhysiologyNanjing Medical UniversityNanjingChina
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99
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Gamblin C, Rouault C, Lacombe A, Langa-Vives F, Farabos D, Lamaziere A, Clément K, Gautier EL, Yvan-Charvet L, Dugail I. Lysosomal Acid Lipase Drives Adipocyte Cholesterol Homeostasis and Modulates Lipid Storage in Obesity, Independent of Autophagy. Diabetes 2021; 70:76-90. [PMID: 33139329 DOI: 10.2337/db20-0578] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/20/2020] [Indexed: 11/13/2022]
Abstract
Besides cytoplasmic lipase-dependent adipocyte fat mobilization, the metabolic role of lysosomal acid lipase (LAL), highly expressed in adipocytes, is unclear. We show that the isolated adipocyte fraction, but not the total undigested adipose tissue (ATs), from obese patients has decreased LAL expression compared with that from nonobese people. Lentiviral-mediated LAL knockdown in the 3T3L1 mouse cell line to mimic the obese adipocytes condition did not affect lysosome density or autophagic flux, but it did increase triglyceride storage and disrupt endoplasmic reticulum cholesterol, as indicated by activated SREBP. Conversely, mice with adipose-specific LAL overexpression (Adpn-rtTA x TetO-hLAL) gained less weight and body fat than did control mice fed a high-fat diet, resulting in ameliorated glucose tolerance. Blood cholesterol level in the former was lower than that of control mice, although triglyceridemia in the two groups of mice was similar. The adipose-specific LAL-overexpressing mouse phenotype depends on the housing temperature and develops only under mild hypothermic stress (e.g., room temperature) but not at thermoneutrality (30°C), demonstrating the prominent contribution of brown AT (BAT) thermogenesis. LAL overexpression increased levels of BAT free cholesterol, decreased SREBP targets, and induced the expression of genes involved in initial steps of mitochondrial steroidogenesis, suggesting conversion of lysosome-derived cholesterol to pregnenolone. In conclusion, our study demonstrates that adipose LAL drives tissue-cholesterol homeostasis and affects BAT metabolism, suggesting beneficial LAL activation in anti-obesity approaches aimed at reactivating thermogenic energy expenditure.
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Affiliation(s)
- Camille Gamblin
- UMRS 1269 INSERM/Sorbonne University, Nutriomics, Paris, France
| | | | | | | | - Dominique Farabos
- Sorbonne University INSERM, Saint Antoine Research Center, CRSA, INSERM, Département de Métabolomique Clinique, Hôpital Saint Antoine, AP-HP/Sorbonne Université, Paris, France
| | - Antonin Lamaziere
- Sorbonne University INSERM, Saint Antoine Research Center, CRSA, INSERM, Département de Métabolomique Clinique, Hôpital Saint Antoine, AP-HP/Sorbonne Université, Paris, France
| | - Karine Clément
- UMRS 1269 INSERM/Sorbonne University, Nutriomics, Paris, France
| | | | | | - Isabelle Dugail
- UMRS 1269 INSERM/Sorbonne University, Nutriomics, Paris, France
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100
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Kaplan M, Nicolas WJ, Zhao W, Carter SD, Metskas LA, Chreifi G, Ghosal D, Jensen GJ. In Situ Imaging and Structure Determination of Biomolecular Complexes Using Electron Cryo-Tomography. Methods Mol Biol 2021; 2215:83-111. [PMID: 33368000 DOI: 10.1007/978-1-0716-0966-8_4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Electron cryo-tomography (cryo-ET) is a technique that allows the investigation of intact macromolecular complexes while they are in their cellular milieu. Over the years, cryo-ET has had a huge impact on our understanding of how large biomolecular complexes look like, how they assemble, disassemble, function, and evolve(d). Recent hardware and software developments and combining cryo-ET with other techniques, e.g., focused ion beam milling (FIB-milling) and cryo-light microscopy, has extended the realm of cryo-ET to include transient molecular complexes embedded deep in thick samples (like eukaryotic cells) and enhanced the resolution of structures obtained by cryo-ET. In this chapter, we will present an outline of how to perform cryo-ET studies on a wide variety of biological samples including prokaryotic and eukaryotic cells and biological plant tissues. This outline will include sample preparation, data collection, and data processing as well as hybrid approaches like FIB-milling, cryosectioning, and cryo-correlated light and electron microscopy (cryo-CLEM).
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Affiliation(s)
- Mohammed Kaplan
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - William J Nicolas
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA, USA
| | - Wei Zhao
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA, USA
| | - Stephen D Carter
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Lauren Ann Metskas
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA, USA
| | - Georges Chreifi
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Debnath Ghosal
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Department of Biochemistry and Molecular Biology; and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, USA
| | - Grant J Jensen
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA.
- Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA, USA.
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA.
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