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Cossu AM, Melisi F, Noviello TMR, Pasquale LS, Grisolia P, Reale C, Bocchetti M, Falco M, Tammaro C, Accardo N, Longo F, Allosso S, Mesolella M, Addeo R, Perri F, Ottaiano A, Ricciardiello F, Amler E, Ambrosino C, Misso G, Ceccarelli M, Caraglia M, Scrima M. MiR-449a antagonizes EMT through IL-6-mediated trans-signaling in laryngeal squamous cancer. Mol Ther Nucleic Acids 2024; 35:102140. [PMID: 38425711 PMCID: PMC10901858 DOI: 10.1016/j.omtn.2024.102140] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 02/01/2024] [Indexed: 03/02/2024]
Abstract
MicroRNAs (miRNAs) are involved in post-transcriptional gene expression regulation and in mechanisms of cancer growth and metastases. In this light, miRNAs could be promising therapeutic targets and biomarkers in clinical practice. Therefore, we investigated if specific miRNAs and their target genes contribute to laryngeal squamous cell carcinoma (LSCC) development. We found a significant decrease of miR-449a in LSCC patients with nodal metastases (63.3%) compared with patients without nodal involvement (44%). The AmpliSeq Transcriptome of HNO-210 miR-449a-transfected cell lines allowed the identification of IL6-R as a potential target. Moreover, the downregulation of IL6-R and the phosphorylation reduction of the downstream signaling effectors, suggested the inhibition of the IL-6 trans-signaling pathway. These biochemical effects were paralleled by a significant inhibition of invasion and migration in vitro and in vivo, supporting an involvement of epithelial-mesenchymal transition. These findings indicate that miR-449a contributes to suppress the metastasization of LSCC by the IL-6 trans-signaling block and affects sensitivity to external stimuli that mimic pro-inflammatory conditions.
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Affiliation(s)
- Alessia Maria Cossu
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Federica Melisi
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Teresa Maria Rosaria Noviello
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
- Department of Electrical Engineering and Information Technology, University of Naples "Federico II", Napoli, Italy
| | - Lucia Stefania Pasquale
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Piera Grisolia
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Carla Reale
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Marco Bocchetti
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Michela Falco
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Chiara Tammaro
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Nunzio Accardo
- Ear, Nose, and Throat Unit, AORN "Antonio Cardarelli", Naples, Italy
| | - Francesco Longo
- Head and Neck Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori, "Fondazione G. Pascale", IRCCS, Naples, Italy
| | - Salvatore Allosso
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, UOC Federico II, 80121 Naples, Italy
| | - Massimo Mesolella
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, UOC Federico II, 80121 Naples, Italy
| | - Raffaele Addeo
- Medical Oncology Unit, San Giovanni di Dio Hospital, 80027 Frattamaggiore, Italy
| | - Francesco Perri
- Head and Neck Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori, "Fondazione G. Pascale", IRCCS, Naples, Italy
| | - Alessandro Ottaiano
- SSD Innovative Therapies for Abdominal Metastases, Abdominal Oncology, Istituto Nazionale per lo Studio e la Cura dei Tumori, "Fondazione G. Pascale", IRCCS, Naples, Italy
| | | | - Evzen Amler
- UCEEB, Czech Technical University, Třinecká 1024, 273 43 Buštěhrad, Czech
| | - Concetta Ambrosino
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
- Department of Science and Technology, University of Sannio, 82100 Benevento, Italy
| | - Gabriella Misso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Michele Ceccarelli
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
- Department of Electrical Engineering and Information Technology, University of Naples "Federico II", Napoli, Italy
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
| | - Marianna Scrima
- Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
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Serra D, Garroni G, Cruciani S, Coradduzza D, Pashchenko A, Amler E, Pintore G, Satta R, Montesu MA, Kohl Y, Ventura C, Maioli M. Electrospun Nanofibers Encapsulated with Natural Products: A Novel Strategy to Counteract Skin Aging. Int J Mol Sci 2024; 25:1908. [PMID: 38339184 PMCID: PMC10856659 DOI: 10.3390/ijms25031908] [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: 12/03/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
The skin is the primary tissue affected by wounds and aging, significantly impacting its protective function. Natural products are widely used in cosmetics, representing a new approach to preventing age-related damage. Nanomedicine combines nanotechnology and traditional treatments to create innovative drugs. The main targets of nanotechnological approaches are wound healing, regeneration, and rejuvenation of skin tissue. The skin barrier is not easily permeable, and the creation of modern nanodevices is a way to improve the passive penetration of substances. In this study, Helichrysum italicum oil (HO) was combined with different types of electrospun nanofibers to study their protective activity on the skin and to evaluate their future application for topical treatments. In the present research, we used biodegradable polymers, including polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP), which were characterized by a scanning electron microscope (SEM). All results show a positive trend in cell proliferation and viability of human skin stem cells (SSCs) and BJ fibroblasts pre-treated with combined nanofibers and then exposed to UV stress. Gene expression analysis revealed the activation of a molecular rejuvenation program in SSCs treated with functionalized nanofibers before UV exposure. Understanding the mechanisms involved in skin changes during aging allows for the future application of nanomaterials combined with HO directly to the patients.
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Affiliation(s)
- Diletta Serra
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (D.S.); (G.G.); (S.C.); (D.C.); (A.P.)
- R&D Laboratory Center, InoCure s.r.o., Politických Veziu 935/13, 110 00 Prague, Czech Republic
| | - Giuseppe Garroni
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (D.S.); (G.G.); (S.C.); (D.C.); (A.P.)
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (D.S.); (G.G.); (S.C.); (D.C.); (A.P.)
| | - Donatella Coradduzza
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (D.S.); (G.G.); (S.C.); (D.C.); (A.P.)
| | - Aleksei Pashchenko
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (D.S.); (G.G.); (S.C.); (D.C.); (A.P.)
- Department of Biophysics, Second Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic;
| | - Evzen Amler
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic;
| | - Giorgio Pintore
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy;
| | - Rosanna Satta
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Maria Antonietta Montesu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Yvonne Kohl
- Fraunhofer Institute for Biomedical Engineering IBMT, Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany;
| | - Carlo Ventura
- Laboratory of Molecular Biology and Stem Cell Engineering, National Institute of Biostructures and Biosystems-Eldor Lab, Innovation Accelerator, CNR, Via Piero Gobetti 101, 40129 Bologna, Italy;
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (D.S.); (G.G.); (S.C.); (D.C.); (A.P.)
- Center for Developmental Biology and Reprogramming-CEDEBIOR, Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
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3
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Serra D, Bellu E, Garroni G, Cruciani S, Sarais G, Dessi D, Pashchenko A, Satta R, Montesu MA, Amler E, Floris M, Maioli M. Hydrolat of Helichrysum italicum promotes tissue regeneration during wound healing. Physiol Res 2023; 72:809-818. [PMID: 38215066 PMCID: PMC10805257] [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: 03/16/2023] [Accepted: 08/08/2023] [Indexed: 01/14/2024] Open
Abstract
Wound healing is a dynamic process involving different cell types with distinct roles according to the stages of healing. Fibroblasts and stem cells actively participate in tissue regeneration. A proper stimulation could contribute to enhance wound healing process-es. Helichrysum italicum (H. italicum) is a medical plant well described for its pharmacological, antimicrobial, and anti-inflammatory activities. Aim of the present work was to examine the effect of the hydrolat derivate from H. italicum on stem cells isolated from skin and fibroblasts in vitro in presence or absence of tissue damage. The viability and proliferation of all cell types cultured in dif-ferent conditions were analyzed by MTT and BrdU assays. Cell proliferation after wound was analyzed with scratch test. Also, the expression of the main genes involved in tissue repair was evaluated by RT-qPCR analysis. Here we describe the capability of hy-drolat of H. italicum to promote tissue regeneration after scratch test both in stem cells and in fibroblasts. Moreover, the gene ex-pression analysis revealed that, hydrolat of H. italicum is also able to enhance stemness related. In conclusion our results are en-couraging, highlighting novel regenerative properties of hydrolat of H. italicum and paving the way for future application of this wasting product in accelerating wound healing.
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Affiliation(s)
- D Serra
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy.
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Abate M, Lombardi A, Luce A, Porru M, Leonetti C, Bocchetti M, Campani V, De Rosa G, Graziano SF, Nele V, Cardile F, Marino FZ, Franco R, Ronchi A, Scrima M, Sperlongano R, Alfano R, Misso G, Amler E, Caraglia M, Zappavigna S. Fluorescent nanodiamonds as innovative delivery systems for MiR-34a replacement in breast cancer. Mol Ther Nucleic Acids 2023; 33:127-141. [PMID: 37449042 PMCID: PMC10336355 DOI: 10.1016/j.omtn.2023.06.012] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/14/2023] [Indexed: 07/18/2023]
Abstract
Nanodiamonds are innovative nanocrystalline carbon particles able to deliver chemically conjugated miRNAs. In oncology, the use of miRNA-based therapies may represent an advantage, based on their ability to simultaneously target multiple intracellular oncogenic targets. Here, nanodiamonds were tested and optimized to deliver miR-34a, a miRNA playing a key role in inhibiting tumor development and progression in many cancers. The physical-chemical properties of nanodiamonds were investigated suggesting electrical stability and uniformity of structure and size. Moreover, we evaluated nanodiamond cytotoxicity on two breast cancer cell models and confirmed their excellent biocompatibility. Subsequently, nanodiamonds were conjugated with miR-34a, using the chemical crosslinker polyethyleneimine; real-time PCR analysis revealed a higher level of miR-34a in cancer cells treated with the different formulations of nanodiamonds than with commercial transfectant. A significant and early nanodiamond-miR-34a uptake was recorded by FACS and fluorescence microscopy analysis in MCF7 and MDA-MB-231 cells. Moreover, nanodiamond-miR-34a significantly inhibited both cell proliferation and migration. Finally, a remarkable anti-tumor effect of miR-34a-conjugated nanodiamonds was observed in both heterotopic and orthotopic murine xenograft models. In conclusion, this study provides a rationale for the development of new therapeutic strategies based on use of miR-34a delivered by nanodiamonds to improve the clinical treatment of neoplasms.
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Affiliation(s)
- Marianna Abate
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic
| | - Angela Lombardi
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Amalia Luce
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Manuela Porru
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, E Chianesi 53, 00144 Rome, Italy
| | - Carlo Leonetti
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, E Chianesi 53, 00144 Rome, Italy
| | - Marco Bocchetti
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Virginia Campani
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Giuseppe De Rosa
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Sossio Fabio Graziano
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Valeria Nele
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Francesco Cardile
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Federica Zito Marino
- Department of Mental and Physical Health and Preventive Medicine, Pathology Unit, University of Campania “Luigi Vanvitelli,” 80138 Naples, Italy
| | - Renato Franco
- Department of Mental and Physical Health and Preventive Medicine, Pathology Unit, University of Campania “Luigi Vanvitelli,” 80138 Naples, Italy
| | - Andrea Ronchi
- Department of Mental and Physical Health and Preventive Medicine, Pathology Unit, University of Campania “Luigi Vanvitelli,” 80138 Naples, Italy
| | - Marianna Scrima
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Rossella Sperlongano
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Roberto Alfano
- Department of Advanced Medical and Surgical Sciences “DAMSS,” University of Campania “Luigi Vanvitelli,” Via S. M. di Costantinopoli 104, 80138 Naples, Italy
| | - Gabriella Misso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Evzen Amler
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Silvia Zappavigna
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
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Kralovic M, Vjaclovsky M, Tonar Z, Grajciarova M, Lorenzova J, Otahal M, Necas A, Hoch J, Amler E. Nanofiber Fractionalization Stimulates Healing of Large Intestine Anastomoses in Rabbits. Int J Nanomedicine 2022; 17:6335-6345. [DOI: 10.2147/ijn.s364888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 11/04/2022] [Indexed: 12/15/2022] Open
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Lama S, Luce A, Bitti G, Chacon-Millan P, Itro A, Ferranti P, D’Auria G, Cammarota M, Nicoletti GF, Ferraro GA, Schiraldi C, Caraglia M, Amler E, Stiuso P. Polydatin Incorporated in Polycaprolactone Nanofibers Improves Osteogenic Differentiation. Pharmaceuticals (Basel) 2022; 15:ph15060727. [PMID: 35745646 PMCID: PMC9230847 DOI: 10.3390/ph15060727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/25/2022] [Accepted: 05/29/2022] [Indexed: 12/20/2022] Open
Abstract
Polycaprolactone nanofibers are used as scaffolds in the field of tissue engineering for tissue regeneration or drug delivery. Polycaprolactone (PCL) is a biodegradable hydrophobic polyester used to obtain implantable nanostructures, which are clinically applicable due to their biological safety. Polydatin (PD), a glycosidic precursor of resveratrol, is known for its antioxidant, antitumor, antiosteoporotic, and bone regeneration activities. We aimed to use the osteogenic capacity of polydatin to create a biomimetic innovative and patented scaffold consisting of PCL-PD for bone tissue engineering. Both osteosarcoma cells (Saos-2) and mesenchymal stem cells (MSCs) were used to test the in vitro cytocompatibility of the PD-PCL scaffold. Reverse-phase (RP) HPLC was used to evaluate the timing release of PD from the PCL-PD nanofibers and the MTT assay, scanning electron microscopy, and alkaline phosphatase (ALP) activity were used to evaluate the proliferation, adhesion, and cellular differentiation in both osteosarcoma and human mesenchymal stem cells (MSCs) seeded on PD-PCL nanofibers. The proliferation of osteosarcoma cells (Saos-2) on the PD-PCL scaffold decreased when compared to cells grown on PLC nanofibers, whereas the proliferation of MSCs was comparable in both PCL and PD-PCL nanofibers. Noteworthy, after 14 days, the ALP activity was higher in both Saos-2 cells and MSCs cultivated on PD-PCL than on empty scaffolds. Moreover, the same cells showed a spindle-shaped morphology after 14 days when grown on PD-PCL as shown by SEM. In conclusion, we provide evidence that nanofibers appropriately coated with PD support the adhesion and promote the osteogenic differentiation of both human osteosarcoma cells and MSCs.
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Affiliation(s)
- Stefania Lama
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (A.L.); (P.C.-M.); (M.C.)
| | - Amalia Luce
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (A.L.); (P.C.-M.); (M.C.)
| | - Giuseppe Bitti
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic; (G.B.); (E.A.)
| | - Pilar Chacon-Millan
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (A.L.); (P.C.-M.); (M.C.)
| | - Annalisa Itro
- Plastic Surgery Unit, Department of Multidisciplinary Medical and Dental Specialties, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.I.); (G.F.N.); (G.A.F.)
| | - Pasquale Ferranti
- Department of Agricultural Sciences, University of Naples Federico II, 80138 Portici, Italy; (P.F.); (G.D.)
| | - Giovanni D’Auria
- Department of Agricultural Sciences, University of Naples Federico II, 80138 Portici, Italy; (P.F.); (G.D.)
| | - Marcella Cammarota
- Department of Experimental Medicine, Section of Biotechnology, Molecular Medicine and Medical Histology, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (M.C.); (C.S.)
| | - Giovanni Francesco Nicoletti
- Plastic Surgery Unit, Department of Multidisciplinary Medical and Dental Specialties, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.I.); (G.F.N.); (G.A.F.)
| | - Giuseppe Andrea Ferraro
- Plastic Surgery Unit, Department of Multidisciplinary Medical and Dental Specialties, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.I.); (G.F.N.); (G.A.F.)
| | - Chiara Schiraldi
- Department of Experimental Medicine, Section of Biotechnology, Molecular Medicine and Medical Histology, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (M.C.); (C.S.)
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (A.L.); (P.C.-M.); (M.C.)
| | - Evzen Amler
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic; (G.B.); (E.A.)
| | - Paola Stiuso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (A.L.); (P.C.-M.); (M.C.)
- Correspondence:
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7
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East B, Woleský J, Divín R, Otáhal M, Vocetková K, Sovková V, Blahnová VH, Koblížek M, Kubový P, Nečasová A, Staffa A, de Beaux AC, Lorenzová J, Amler E. Liquid resorbable nanofibrous surgical mesh: a proof of a concept. Hernia 2022; 26:557-565. [PMID: 35377083 DOI: 10.1007/s10029-022-02582-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 02/17/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Surgical mesh is widely used not only to treat but also to prevent incisional hernia formation. Despite much effort by material engineers, the 'ideal' mesh mechanically, biologically and surgically easy to use remains elusive. Advances in tissue engineering and nanomedicine have allowed new concepts to be tested with promising results in both small and large animals. Abandoning the concept of a pre-formed mesh completely for a 'pour in liquid mesh' has never been tested before. MATERIALS AND METHODS Thirty rabbits underwent midline laparotomy with closure using an absorbable suture and small stitch small bites technique. In addition, their abdominal wall closure was reinforced by a liquid nanofibrous scaffold composed of a fibrin sealant and nanofibres of poly-ε-caprolactone with or without hyaluronic acid or the sealant alone, poured in as an 'onlay' over the closed abdominal wall. The animals were killed at 6 weeks and their abdominal wall was subjected to histological and biomechanical evaluations. RESULTS All the animals survived the study period with no major complication. Histological evaluation showed an eosinophilic infiltration in all groups and foreign body reaction more pronounced in the groups with nanofibres. Biomechanical testing demonstrated that groups treated with nanofibres developed a scar with higher tensile yield strength. CONCLUSION The use of nanofibres in a liquid form applied to the closed abdominal wall is easy to use and improves the biomechanical properties of healing fascia at 6 weeks after midline laparotomy in a rabbit model.
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Affiliation(s)
- B East
- 3rd Department of Surgery, 1st Faculty of Medicine, Motol University Hospital, V uvalu 84, 150 06, Prague, Czech Republic.
| | - J Woleský
- 3rd Department of Surgery, 1st Faculty of Medicine, Motol University Hospital, V uvalu 84, 150 06, Prague, Czech Republic
| | - R Divín
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V uvalu 84, 150 06, Prague, Czech Republic.,University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43, Buštěhrad, Czech Republic
| | - M Otáhal
- Department of Natural Sciences, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna 3105, 272 01, Kladno, Czech Republic.,Department of Anatomy and Biomechanics, Faculty of Physical Education and Sport, Charles University in Prague, Jose Martího 31, 162 52, Prague 6, Czech Republic
| | - K Vocetková
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43, Buštěhrad, Czech Republic.,Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic
| | - V Sovková
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43, Buštěhrad, Czech Republic.,Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic
| | - V H Blahnová
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V uvalu 84, 150 06, Prague, Czech Republic.,University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43, Buštěhrad, Czech Republic.,Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic
| | - M Koblížek
- Department of Pathology, 2nd Faculty of Medicine, Motol University Hospital, Charles University, V uvalu, 15006, Prague, Czech Republic
| | - P Kubový
- Department of Anatomy and Biomechanics, Faculty of Physical Education and Sport, Charles University in Prague, Jose Martího 31, 162 52, Prague 6, Czech Republic
| | - A Nečasová
- Department of Surgery & Orthopaedics, Faculty of Veterinary Medicine, Small Animal Clinic, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - A Staffa
- Large Animal Clinical Laboratory, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - A Ch de Beaux
- Royal Infirmary, Department of General Surgery, 51 Little France Crescent, Old Dalkeith Rd, Edinburgh, EH16 4SA, UK
| | - J Lorenzová
- Department of Surgery & Orthopaedics, Faculty of Veterinary Medicine, Small Animal Clinic, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - E Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V uvalu 84, 150 06, Prague, Czech Republic.,University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43, Buštěhrad, Czech Republic
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8
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East B, Woleský J, Divin R, Otahal M, Koblizek M, Staffa A, Lorenzova J, Beaux A, Amler E. O38 PROPHYLACTIC LIQUID MESH - A SMALL ANIMAL EXPERIMENT. Br J Surg 2021. [DOI: 10.1093/bjs/znab396.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Aim
Background: Surgical mesh is widely used not only to treat but also to prevent incisional hernia formation. Despite much effort by material engineers, the ‘ideal' mesh mechanically, biologically and surgically easy to use remains elusive. Advances in tissue engineering and nanomedicine have allowed new concepts to be tested with promising results in both small and large animals. Abandoning the concept of a pre-formed mesh completely for a ‘pour in liquid mesh’ has never been tested before.
Material and Methods
Thirty rabbits underwent midline laparotomy with closure using an absorbable suture and small stitch small bites technique. In addition, their abdominal wall closure was reinforced by a liquid nanofibrous scaffold composed of a fibrin sealant and nanofibers of poly-ε-caprolactone with or without hyaluronic acid or the sealant alone, placed as an ‘onlay’ over the closed abdominal wall. The animals were sacrificed at 6 weeks and their abdominal wall was subjected to histological and biomechanical evaluations.
Results
All the animals survived the study period with no major complication. Histological evaluation showed an eosinophilic infiltration in all groups and foreign body reaction more pronounced in the groups with nanofibers. Biomechanical testing demonstrated that groups treated with nanofibers developed a scar with higher tensile ultimate and yield strength.
Conclusions
The use of nanofibers in a liquid form applied to the closed abdominal wall is easy to use and improves the biomechanical properties of healing fascia at 6 weeks after midline laparotomy in a rabbit model.
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Affiliation(s)
- Barbora East
- Royal Infirmary of Edinburgh, Department of General Surgery, Edinburgh, United Kingdom
| | - Jakub Woleský
- Motol University Hospital, 3rd Department of Surgery, Motol University Hospital, Prague, Czech Republic
| | | | | | | | | | | | - Andrew de Beaux
- Royal Infirmary of Edinburgh, Royal Infirmary of Edinburgh, Department of General Surgery, Edinburgh, United Kingdom
| | - Evzen Amler
- Medical Faculty, Charles University, Department of Biofysics, Czech Republic
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9
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Correale P, Saladino RE, Giannarelli D, Giannicola R, Agostino R, Staropoli N, Strangio A, Del Giudice T, Nardone V, Altomonte M, Pastina P, Tini P, Falzea AC, Imbesi N, Arcati V, Romeo G, Caracciolo D, Luce A, Caraglia M, Giordano A, Pirtoli L, Necas A, Amler E, Barbieri V, Tassone P, Tagliaferri P. Distinctive germline expression of class I human leukocyte antigen (HLA) alleles and DRB1 heterozygosis predict the outcome of patients with non-small cell lung cancer receiving PD-1/PD-L1 immune checkpoint blockade. J Immunother Cancer 2021; 8:jitc-2020-000733. [PMID: 32554614 PMCID: PMC7304840 DOI: 10.1136/jitc-2020-000733] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Nivolumab is a human monoclonal antibody against programmed cell death receptor-1 (PD-1) able to rescue quiescent tumor infiltrating cytotoxic T lymphocytes (CTLs) restoring their ability to kill target cells expressing specific tumor antigen-derived epitope peptides bound to homologue human leukocyte antigen (HLA) molecules. Nivolumab is currently an active but expensive therapeutic agent for metastatic non-small cell lung cancer (mNSCLC), producing, in some cases, immune-related adverse events (irAEs). At the present, no reliable biomarkers have been validated to predict either treatment response or adverse events in treated patients. METHODS We performed a retrospective multi-institutional analysis including 119 patients with mNSCLC who received PD-1 blockade since November 2015 to investigate the predictive role of germinal class I HLA and DRB1 genotype. We investigated the correlation among patients' outcome and irAEs frequency with specific HLA A, B, C and DRB1 alleles by reverse sequence-specific oligonucleotide (SSO) DNA typing. RESULTS A poor outcome in patients negative for the expression of two most frequent HLA-A alleles was detected (HLA: HLA-A*01 and or A*02; progression-free survival (PFS): 7.5 (2.8 to 12.2) vs 15.9 (0 to 39.2) months, p=0.01). In particular, HLA-A*01-positive patients showed a prolonged PFS of 22.6 (10.2 to 35.0) and overall survival (OS) of 30.8 (7.7 to 53.9) months, respectively. We also reported that HLA-A and DRB1 locus heterozygosis (het) were correlated to a worse OS if we considered het in the locus A; in reverse, long survival was correlated to het in DRB1. CONCLUSIONS This study demonstrate that class I and II HLA allele characterization to define tumor immunogenicity has relevant implications in predicting nivolumab efficacy in mNSCLC and provide the rationale for further prospective trials of cancer immunotherapy.
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Affiliation(s)
- Pierpaolo Correale
- Medical Oncology Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Rita Emilena Saladino
- Tissue Typing Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | | | - Rocco Giannicola
- Medical Oncology Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Rita Agostino
- Medical Oncology Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Nicoletta Staropoli
- Medical and Translational Oncology Unit, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Alessandra Strangio
- Medical Oncology Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Teresa Del Giudice
- Medical and Translational Oncology Unit, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Valerio Nardone
- Radiotherapy Unit, "Ospedale del Mare", ASL Napoli 1, Naples, Italy
| | - Maria Altomonte
- Unit of Pharmacy, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Pierpaolo Pastina
- Section of Radiation Oncology, Medical School, University of Siena, Siena, Italy
| | - Paolo Tini
- Section of Radiation Oncology, Medical School, University of Siena, Siena, Italy
| | - Antonia Consuelo Falzea
- Medical Oncology Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Natale Imbesi
- Tissue Typing Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Valentina Arcati
- Tissue Typing Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Giuseppa Romeo
- Tissue Typing Unit, Grand Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Daniele Caracciolo
- Medical and Translational Oncology Unit, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Amalia Luce
- Department of Precision Medicine, University of Campania "L. Vanvitelli", Naples, Italy
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania "L. Vanvitelli", Naples, Italy .,Biogem Scarl, Institute of Genetic Research, Laboratory of Precision and Molecular Oncology, Ariano Irpino, Avellino, Italy
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine and Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA.,Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Luigi Pirtoli
- Sbarro Institute for Cancer Research and Molecular Medicine and Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA
| | - Alois Necas
- Central European Institute of Technology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Evzen Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Vito Barbieri
- Medical and Translational Oncology Unit, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Pierfrancesco Tassone
- Medical and Translational Oncology Unit, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine and Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA
| | - Pierosandro Tagliaferri
- Medical and Translational Oncology Unit, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
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10
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Bellu E, Medici S, Coradduzza D, Cruciani S, Amler E, Maioli M. Nanomaterials in Skin Regeneration and Rejuvenation. Int J Mol Sci 2021; 22:7095. [PMID: 34209468 PMCID: PMC8268279 DOI: 10.3390/ijms22137095] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/18/2021] [Accepted: 06/28/2021] [Indexed: 12/11/2022] Open
Abstract
Skin is the external part of the human body; thus, it is exposed to outer stimuli leading to injuries and damage, due to being the tissue mostly affected by wounds and aging that compromise its protective function. The recent extension of the average lifespan raises the interest in products capable of counteracting skin related health conditions. However, the skin barrier is not easy to permeate and could be influenced by different factors. In the last decades an innovative pharmacotherapeutic approach has been possible thanks to the advent of nanomedicine. Nanodevices can represent an appropriate formulation to enhance the passive penetration, modulate drug solubility and increase the thermodynamic activity of drugs. Here, we summarize the recent nanotechnological approaches to maintain and replace skin homeostasis, with particular attention to nanomaterials applications on wound healing, regeneration and rejuvenation of skin tissue. The different nanomaterials as nanofibers, hydrogels, nanosuspensions, and nanoparticles are described and in particular we highlight their main chemical features that are useful in drug delivery and tissue regeneration.
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Affiliation(s)
- Emanuela Bellu
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
| | - Serenella Medici
- Department of Chemistry and Pharmacy, University of Sassari, Vienna 2, 07100 Sassari, Italy;
| | - Donatella Coradduzza
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
| | - Evzen Amler
- UCEEB, Czech Technical University, Trinecka 1024, 27343 Bustehrad, Czech Republic;
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
- Center for Developmental Biology and Reprogramming (CEDEBIOR), Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Interuniversity Consortium I.N.B.B., Viale delle Medaglie d’Oro, 305, 00136 Roma, Italy
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11
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Sopko B, Tejral G, Bitti G, Abate M, Medvedikova M, Hajduch M, Chloupek J, Fajmonova J, Skoric M, Amler E, Erban T. Glyphosate Interaction with eEF1α1 Indicates Altered Protein Synthesis: Evidence for Reduced Spermatogenesis and Cytostatic Effect. ACS Omega 2021; 6:14848-14857. [PMID: 34151066 PMCID: PMC8209799 DOI: 10.1021/acsomega.1c00449] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/18/2021] [Indexed: 06/13/2023]
Abstract
The broad-spectrum herbicide, glyphosate, is considered safe for animals because it selectively affects the shikimate pathway that is specific to plants and microorganisms. We sought a previously unknown mechanism to explain the concerns that glyphosate exposure can negatively affect animals, including humans. Computer modeling showed a probable interaction between glyphosate and eukaryotic translation elongation factor 1 subunit alpha 1 (eEF1α1), which was confirmed by microcalorimetry. Only restricted, nondisrupted spermatogenesis in rats was observed after chronic glyphosate treatments (0.7 and 7 mg/L). Cytostatic and antiproliferative effects of glyphosate in GC-1 and SUP-B15 cells were indicated. Meta-analysis of public health data suggested a possible effect of glyphosate use on sperm count. The in silico, in vitro, and in vivo experimental results as well as the metastatistics indicate side effects of chronic glyphosate exposure. Together, these findings indicate that glyphosate delays protein synthesis through an interaction with eEF1α1, thereby suppressing spermatogenesis and cell growth.
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Affiliation(s)
- Bruno Sopko
- Crop
Research Institute, Prague 161 06, Czechia
- Department
of Medical Chemistry and Clinical Biochemistry, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague 150 06, Czechia
- Laboratory
of Tissue Engineering, Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, Prague 142 20, Czechia
- Biomedicine
and Advanced Biomaterials Department, University Center for Energy
Efficient Buildings, The Czech Technical
University in Prague, Prague, Bustehrad 273 43, Czechia
| | - Gracian Tejral
- Laboratory
of Tissue Engineering, Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, Prague 142 20, Czechia
- Biomedicine
and Advanced Biomaterials Department, University Center for Energy
Efficient Buildings, The Czech Technical
University in Prague, Prague, Bustehrad 273 43, Czechia
- Department
of Biophysics, 2nd Faculty of Medicine, Charles University, Prague 150 06, Czechia
| | - Guissepe Bitti
- Laboratory
of Tissue Engineering, Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, Prague 142 20, Czechia
- Biomedicine
and Advanced Biomaterials Department, University Center for Energy
Efficient Buildings, The Czech Technical
University in Prague, Prague, Bustehrad 273 43, Czechia
| | - Marianna Abate
- Department
of Precision Medicine, University of Campania
“Luigi Vanvitelli”, Naples 80131, Italy
| | - Martina Medvedikova
- Institute
of Molecular and Translation Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc 779 00, Czechia
| | - Marian Hajduch
- Institute
of Molecular and Translation Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc 779 00, Czechia
| | - Jan Chloupek
- Department
of Pharmacology and Pharmacy, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences
Brno, Brno 612 42, Czechia
| | - Jolana Fajmonova
- Department
of Pharmacology and Pharmacy, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences
Brno, Brno 612 42, Czechia
| | - Misa Skoric
- Department
of Pathological Morphology and Parasitology, Faculty of Veterinary
Medicine, University of Veterinary and Pharmaceutical
Sciences Brno, Brno 612 42, Czechia
| | - Evzen Amler
- Biomedicine
and Advanced Biomaterials Department, University Center for Energy
Efficient Buildings, The Czech Technical
University in Prague, Prague, Bustehrad 273 43, Czechia
- Department
of Biophysics, 2nd Faculty of Medicine, Charles University, Prague 150 06, Czechia
| | - Tomas Erban
- Crop
Research Institute, Prague 161 06, Czechia
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12
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Bellu E, Cruciani S, Garroni G, Balzano F, Satta R, Montesu MA, Fadda A, Mulas M, Sarais G, Bandiera P, Ventura C, Kralovič M, Sabo J, Amler E, Maioli M. Natural Compounds and PCL Nanofibers: A Novel Tool to Counteract Stem Cell Senescence. Cells 2021; 10:cells10061415. [PMID: 34200247 PMCID: PMC8227046 DOI: 10.3390/cells10061415] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/11/2021] [Accepted: 06/02/2021] [Indexed: 12/31/2022] Open
Abstract
Tissue homeostasis mainly depends on the activity of stem cells to replace damaged elements and restore tissue functions. Within this context, mesenchymal stem cells and fibroblasts are essential for maintaining tissue homeostasis in skin, in particular in the dermis. Modifications in collagen fibers are able to affect stem cell features. Skin properties can be significantly reduced after injuries or with aging, and stem cell niches, mainly comprising extracellular matrix (ECM), may be compromised. To this end, specific molecules can be administrated to prevent the aging process induced by UV exposure in the attempt to maintain a youngness phenotype. NanoPCL-M is a novel nanodevice able to control delivery of Mediterranean plant myrtle (Myrtus communis L.) extracts. In particular, we previously described that myrtle extracts, rich in bioactive molecules and nutraceuticals, were able to counteract senescence in adipose derived stem cells. In this study, we analyzed the effect of NanoPCL-M on skin stem cells (SSCs) and dermal fibroblasts in a dynamic cell culture model in order to prevent the effects of UV-induced senescence on proliferation and collagen depot. The BrdU assay results highlight the significantly positive effect of NanoPCL-M on the proliferation of both fibroblasts and SSCs. Our results demonstrate that-M is able to preserve SSCs features and collagen depot after UV-induced senescence, suggesting their capability to retain a young phenotype.
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Affiliation(s)
- Emanuela Bellu
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (S.C.); (G.G.); (F.B.); (P.B.)
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (S.C.); (G.G.); (F.B.); (P.B.)
| | - Giuseppe Garroni
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (S.C.); (G.G.); (F.B.); (P.B.)
| | - Francesca Balzano
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (S.C.); (G.G.); (F.B.); (P.B.)
| | - Rosanna Satta
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Maria Antonia Montesu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Angela Fadda
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), Traversa la Crucca 3, 07100 Sassari, Italy;
| | - Maurizio Mulas
- Department of Agriculture, University of Sassari, Via De Nicola 9, 07100 Sassari, Italy;
| | - Giorgia Sarais
- Department of Life and Environmental Sciences, University of Cagliari, University Campus, 09042 Monserrato (Cagliari), Italy;
| | - Pasquale Bandiera
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (S.C.); (G.G.); (F.B.); (P.B.)
| | - Carlo Ventura
- Laboratory of Molecular Biology and Stem Cell Engineering-Eldor Lab, National Institute of Biostructures and Biosystems, Innovation Accelerator, CNR, Via Piero Gobetti 101, 40129 Bologna, Italy;
| | - Martin Kralovič
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic;
- UCEEB, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Jan Sabo
- Department of Medical and Clinical Biophysics, Faculty of Medicine, Pavol Jozef Šafárik University, Trieda SNP 1, 04011 Košice, Slovakia;
| | - Evzen Amler
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic;
- UCEEB, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
- Correspondence: (E.A.); (M.M.)
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (S.C.); (G.G.); (F.B.); (P.B.)
- Center for Developmental Biology and Reprogramming (CEDEBIOR), Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Correspondence: (E.A.); (M.M.)
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13
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Bellu E, Garroni G, Cruciani S, Balzano F, Serra D, Satta R, Montesu MA, Fadda A, Mulas M, Sarais G, Bandiera P, Torreggiani E, Martini F, Tognon M, Ventura C, Beznoska J, Amler E, Maioli M. Smart Nanofibers with Natural Extracts Prevent Senescence Patterning in a Dynamic Cell Culture Model of Human Skin. Cells 2020; 9:cells9122530. [PMID: 33255167 PMCID: PMC7760051 DOI: 10.3390/cells9122530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/11/2020] [Accepted: 11/19/2020] [Indexed: 12/16/2022] Open
Abstract
Natural cosmetic products have recently re-emerged as a novel tool able to counteract skin aging and skin related damages. In addition, recently achieved progress in nanomedicine opens a novel approach yielding from combination of modern nanotechnology with traditional treatment for innovative pharmacotherapeutics. In the present study, we investigated the antiaging effect of a pretreatment with Myrtus communis natural extract combined with a polycaprolactone nanofibrous scaffold (NanoPCL-M) on skin cell populations exposed to UV. We set up a novel model of skin on a bioreactor mimicking a crosstalk between keratinocytes, stem cells and fibroblasts, as in skin. Beta-galactosidase assay, indicating the amount of senescent cells, and viability assay, revealed that fibroblasts and stem cells pretreated with NanoPCL-M and then exposed to UV are superimposable to control cells, untreated and unexposed to UV damage. On the other hand, cells only exposed to UV stress, without NanoPCL-M pretreatment, exhibited a significantly higher yield of senescent elements. Keratinocyte-based 3D structures appeared disjointed after UV-stress, as compared to NanoPCL-M pretreated samples. Gene expression analysis performed on different senescence associated genes, revealed the activation of a molecular program of rejuvenation in stem cells pretreated with NanoPCL-M and then exposed to UV. Altogether, our results highlight a future translational application of NanoPCL-M to prevent skin aging.
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Affiliation(s)
- Emanuela Bellu
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Giuseppe Garroni
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Francesca Balzano
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Diletta Serra
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Rosanna Satta
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Maria Antonia Montesu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Angela Fadda
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), Traversa la Crucca 3, 07100 Sassari, Italy;
| | - Maurizio Mulas
- Department of Agriculture, University of Sassari, Via De Nicola 9, 07100 Sassari, Italy;
| | - Giorgia Sarais
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy;
| | - Pasquale Bandiera
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Elena Torreggiani
- Department Medical Sciences, Section Experimental Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.T.); (F.M.); (M.T.)
| | - Fernanda Martini
- Department Medical Sciences, Section Experimental Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.T.); (F.M.); (M.T.)
| | - Mauro Tognon
- Department Medical Sciences, Section Experimental Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.T.); (F.M.); (M.T.)
| | - Carlo Ventura
- Laboratory of Molecular Biology and Stem Cell Engineering-Eldor Lab, National Institute of Biostructures and Biosystems, Innovation Accelerator, CNR, Via Piero Gobetti 101, 40129 Bologna, Italy;
| | - Jiří Beznoska
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic;
| | - Evzen Amler
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic;
- UCEEB, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
- Correspondence: (E.A.); (M.M.); Tel.: +420-608-979-660 (E.A.); +39-0792-28277 (M.M.)
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
- Center for Developmental Biology and Reprogramming-CEDEBIOR, Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), 09042 Monserrato, Italy
- Correspondence: (E.A.); (M.M.); Tel.: +420-608-979-660 (E.A.); +39-0792-28277 (M.M.)
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Vocetkova K, Sovkova V, Buzgo M, Lukasova V, Divin R, Rampichova M, Blazek P, Zikmund T, Kaiser J, Karpisek Z, Amler E, Filova E. A Simple Drug Delivery System for Platelet-Derived Bioactive Molecules, to Improve Melanocyte Stimulation in Vitiligo Treatment. Nanomaterials (Basel) 2020; 10:nano10091801. [PMID: 32927642 PMCID: PMC7559479 DOI: 10.3390/nano10091801] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/02/2020] [Accepted: 09/08/2020] [Indexed: 12/17/2022]
Abstract
Vitiligo is the most common depigmentation disorder of the skin. Currently, its therapy focuses on the halting of the immune response and stimulation of the regenerative processes, leading to the restoration of normal melanocyte function. Platelet-rich plasma (PRP) represents a safe and cheap regenerative therapy option, as it delivers a wide spectrum of native growth factors, cytokines and other bioactive molecules. The aim of this study was to develop a simple delivery system to prolong the effects of the bioactive molecules released from platelets. The surface of electrospun and centrifugally spun poly-ε-caprolactone (PCL) fibrous scaffolds was functionalized with various concentrations of platelets; the influence of the morphology of the scaffolds and the concentration of the released platelet-derived bioactive molecules on melanocytes, was then assessed. An almost two-fold increase in the amount of the released bioactive molecules was detected on the centrifugally spun vs. electrospun scaffolds, and a sustained 14-day release of the bioactive molecules was demonstrated. A strong concentration-dependent response of melanocyte to the bioactive molecules was observed; higher concentrations of bioactive molecules resulted in improved metabolic activity and proliferation of melanocytes. This simple system improves melanocyte viability, offers on-site preparation and is suitable for prolonged topical PRP administration.
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Affiliation(s)
- Karolina Vocetkova
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (V.S.); (M.B.); (V.L.); (R.D.); (M.R.); (E.F.)
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic;
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
- Correspondence:
| | - Vera Sovkova
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (V.S.); (M.B.); (V.L.); (R.D.); (M.R.); (E.F.)
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic;
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Matej Buzgo
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (V.S.); (M.B.); (V.L.); (R.D.); (M.R.); (E.F.)
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Vera Lukasova
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (V.S.); (M.B.); (V.L.); (R.D.); (M.R.); (E.F.)
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Radek Divin
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (V.S.); (M.B.); (V.L.); (R.D.); (M.R.); (E.F.)
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic;
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Michala Rampichova
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (V.S.); (M.B.); (V.L.); (R.D.); (M.R.); (E.F.)
| | - Pavel Blazek
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 616 00 Brno, Czech Republic; (P.B.); (T.Z.); (J.K.)
| | - Tomas Zikmund
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 616 00 Brno, Czech Republic; (P.B.); (T.Z.); (J.K.)
| | - Jozef Kaiser
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 616 00 Brno, Czech Republic; (P.B.); (T.Z.); (J.K.)
| | - Zdenek Karpisek
- Institute of Mathematics, Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2, 616 69 Brno, Czech Republic;
| | - Evzen Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic;
- University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Eva Filova
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (V.S.); (M.B.); (V.L.); (R.D.); (M.R.); (E.F.)
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic;
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15
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Bocková M, Hoch J, Kestlerová A, Amler E. The dead space after extirpation of rectum. Current management and searching for new materials for filling. Physiol Res 2020; 68:S509-S515. [PMID: 32118483 DOI: 10.33549/physiolres.934390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pelvic surgeries such as extirpation of the rectum or pelvic exenteration lead to a creation of a dead space, which can be cause of complication, such as bowel obstruction, perineal hernia, abscess or hematoma. A growing incidence of complication is expected in connection with the increasing use of laparoscopic and robotic approaches or ELAPE method. Since the bone structures do not allow compression, the only way to deal with the dead space is to fill it in. Present methods provide the filling with omental or myofascial flaps. The length and the mobility of the omental flap can be the limitation. Myofascial flaps are technically more demanding and bring the complications of a donor place. Synthetic or biological meshes do not deal with dead space problematic. Modern technologies using nanomaterials offer the possibility to produce a material with specific properties for example shape, inner structure, surface, or time of degradation. The modified material could also satisfy the requirements for filling the dead space after surgeries.
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Affiliation(s)
- M Bocková
- Department of Surgery, Second Faculty of Medicine, Charles University in Prague and Motol Faculty Hospital, Prague, Czech Republic.
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16
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Beznoska J, Uhlík J, Kestlerová A, Královič M, Divín R, Fedačko J, Beneš J, Beneš M, Vocetková K, Sovková V, Nečas A, Nečasová A, Holešovský J, Amler E. PVA and PCL nanofibers are suitable for tissue covering and regeneration. Physiol Res 2020; 68:S501-S508. [PMID: 32118482 DOI: 10.33549/physiolres.934389] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The aim of the study was to evaluate the safety and efficacy of a new therapeutic approach to skin defects resulting from split thickness grafting. Within the study, nanofiber-based dressings fabricated using polyvinyl alcohol (PVA) and poly-ε-caprolactone (PCL) were used, with different mass density. The study was performed in 1 female minipig. Nine defects (approx. 4x4 cm) were made in the superficial skin layer. The tested materials were applied to the squared skin defect and covered by a Jelonet paraffin gauze, sutured in the corners of the defects. The animal was monitored daily during the healing process (21 days). On day 5, 12, and 27, the healing of the wound was evaluated, and a biopsy was performed for further histologic testing. At the end of the study (on day 27 after the procedure), the animal was euthanized, and a standard pathologic evaluation was performed. We can conclude that the nanofiber scaffold which was well tolerated, could be used as a smart skin cover which could be functionalized with another bioactive substances directly on the surgeon table, among potential bioactive substances belong platelet derivatives, antibiotics, etc.
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Affiliation(s)
- J Beznoska
- Rudolph and Stephanie Hospital, Benešov, Czech Republic.
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17
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Kralovic M, Vjaclovsky M, Kestlerova A, Rustichelli F, Hoch J, Amler E. Electrospun nanofibers as support for the healing of intestinal anastomoses. Physiol Res 2019; 68:S517-S525. [PMID: 32118484 DOI: 10.33549/physiolres.934387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The breakdown of intestinal anastomosis is a serious postsurgical complication. The worst complication is anastomotic leakage, resulting in contaminated peritoneal cavity, sepsis, multi-organ failure and even death. In problematic locations like the rectum, the leakage rate has not yet fallen below 10 %. Such a life-threatening condition is the result of impaired healing in the anastomotic wound. It is still vital to find innovative strategies and techniques in order to support regeneration of the anastomotic wound. This paper reviews the surgical techniques and biomaterials used, tested or published. Electrospun nanofibers are introduced as a novel and potential material in gastrointestinal surgery. Nanofibers possess several, unique, physical and chemical properties, that may effectively stimulate cell proliferation and collagen production; a key requirement for the healed intestinal wound.
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Affiliation(s)
- M Kralovic
- Czech Technical University Prague, University Center for Energy Efficient Buildings, Buštěhrad, Czech Republic.
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18
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Buzgo M, Plencner M, Rampichova M, Litvinec A, Prosecka E, Staffa A, Kralovic M, Filova E, Doupnik M, Lukasova V, Vocetkova K, Anderova J, Kubikova T, Zajicek R, Lopot F, Jelen K, Tonar Z, Amler E, Divin R, Fiori F. Poly-ε-caprolactone and polyvinyl alcohol electrospun wound dressings: adhesion properties and wound management of skin defects in rabbits. Regen Med 2019; 14:423-445. [PMID: 31180294 DOI: 10.2217/rme-2018-0072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aim: This study evaluates the effect of electrospun dressings in critical sized full-thickness skin defects in rabbits. Materials & methods: Electrospun poly-ε-caprolactone (PCL) and polyvinyl alcohol (PVA) nanofibers were tested in vitro and in vivo. Results: The PCL scaffold supported the proliferation of mesenchymal stem cells, fibroblasts and keratinocytes. The PVA scaffold showed significant swelling, high elongation capacity, limited protein adsorption and stimulation of cells. Nanofibrous dressings improved wound healing compared with the control group in vivo. A change of the PCL dressing every 7 days resulted in a decreased epithelial thickness and type I collagen level in the adhesive group, indicating peeling off of the newly formed tissue. In the PVA dressings, the exchange did not affect healing. Conclusion: The results demonstrate the importance of proper dressing exchange.
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Affiliation(s)
- Matej Buzgo
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Martin Plencner
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Michala Rampichova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Andrej Litvinec
- Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Eva Prosecka
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Andrea Staffa
- Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Martin Kralovic
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Eva Filova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Miroslav Doupnik
- Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Vera Lukasova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Karolina Vocetkova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Jana Anderova
- Department of Anatomy & Biomechanics, Faculty of Physical Education & Sport, Charles University, Jose Martiho 31, 162 52 Prague 6, Czech Republic
| | - Tereza Kubikova
- Biomedical Center and Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Pilsen, Czech Republic
| | - Robert Zajicek
- Department of Burns Medicine, 3rd Faculty of Medicine, University Hospital Kralovske Vinohrady, Srobarova 1150/50, 100 00 Prague 10, Czech Republic
| | - Frantisek Lopot
- Department of Anatomy & Biomechanics, Faculty of Physical Education & Sport, Charles University, Jose Martiho 31, 162 52 Prague 6, Czech Republic
| | - Karel Jelen
- Department of Anatomy & Biomechanics, Faculty of Physical Education & Sport, Charles University, Jose Martiho 31, 162 52 Prague 6, Czech Republic
| | - Zbynek Tonar
- Biomedical Center and Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Pilsen, Czech Republic
| | - Evzen Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic.,Nanoprogres, z.s.p.o., Nova 306, 530 09 Pardubice, Czech Republic
| | - Radek Divin
- Department of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic.,Laboratory of Advanced Biomaterials, University Centre for Energy Efficient Buildings, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
| | - Fabrizio Fiori
- Universita Politecnica delle Marche, Di.S.C.O., Via Brecce Bianche, 60131 Ancona, Italy
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19
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Misso G, Zarone MR, Lombardi A, Grimaldi A, Cossu AM, Ferri C, Russo M, Vuoso DC, Luce A, Kawasaki H, Di Martino MT, Virgilio A, Festa A, Galeone A, De Rosa G, Irace C, Donadelli M, Necas A, Amler E, Tagliaferri P, Tassone P, Caraglia M. miR-125b Upregulates miR-34a and Sequentially Activates Stress Adaption and Cell Death Mechanisms in Multiple Myeloma. Mol Ther Nucleic Acids 2019; 16:391-406. [PMID: 31009917 PMCID: PMC6479071 DOI: 10.1016/j.omtn.2019.02.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 02/26/2019] [Accepted: 02/26/2019] [Indexed: 12/12/2022]
Abstract
miR-125b, ubiquitously expressed and frequently dysregulated in several tumors, has gained special interest in the field of cancer research, displaying either oncogenic or oncosuppressor potential based on tumor type. We have previously demonstrated its tumor-suppressive role in multiple myeloma (MM), but the analysis of molecular mechanisms needs additional investigation. The purpose of this study was to explore the effects of miR-125b and its chemically modified analogs in modulating cell viability and cancer-associated molecular pathways, also focusing on the functional aspects of stress adaptation (autophagy and senescence), as well as programmed cell death (apoptosis). Based on the well-known low microRNA (miRNA) stability in therapeutic application, we designed chemically modified miR-125b mimics, laying the bases for their subsequent investigation in in vivo models. Our study clearly confirmed an oncosuppressive function depending on the repression of multiple targets, and it allowed the identification, for the first time, of miR-125b-dependent miR-34a stimulation as a possible consequence of the inhibitory role on the interleukin-6 receptor (IL-6R)/signal transducer and activator of transcription 3 (STAT3)/miR-34a feedback loop. Moreover, we identified a pattern of miR-125b-co-regulated miRNAs, shedding light on possible new players of anti-MM activity. Finally, functional studies also revealed a sequential activation of senescence, autophagy, and apoptosis, thus indicating, for the first two processes, an early cytoprotective and inhibitory role from apoptosis activation.
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Affiliation(s)
- Gabriella Misso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy.
| | - Mayra Rachele Zarone
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Angela Lombardi
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Anna Grimaldi
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Alessia Maria Cossu
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy; IRGS, Biogem, Molecular and Precision Oncology Laboratory, Via Camporeale, 83031 Ariano Irpino, Italy
| | - Carmela Ferri
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Margherita Russo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Daniela Cristina Vuoso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Amalia Luce
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Hiromichi Kawasaki
- Drug Discovery Laboratory, Wakunaga Pharmaceutical Co., Ltd., Hiroshima, Japan
| | - Maria Teresa Di Martino
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Salvatore Venuta University Campus, 88100 Catanzaro, Italy.
| | - Antonella Virgilio
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Agostino Festa
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy
| | - Aldo Galeone
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Giuseppe De Rosa
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Carlo Irace
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Massimo Donadelli
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biochemistry, University of Verona, Verona, Italy
| | - Alois Necas
- CEITEC - Central European Institute of Technology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Evzen Amler
- Second Medical Faculty, Charles University in Prague, Prague, Czech Republic
| | - Pierosandro Tagliaferri
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Salvatore Venuta University Campus, 88100 Catanzaro, Italy
| | - Pierfrancesco Tassone
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Salvatore Venuta University Campus, 88100 Catanzaro, Italy
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," 80138 Naples, Italy; IRGS, Biogem, Molecular and Precision Oncology Laboratory, Via Camporeale, 83031 Ariano Irpino, Italy.
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20
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Lukášová V, Buzgo M, Vocetková K, Sovková V, Doupník M, Himawan E, Staffa A, Sedláček R, Chlup H, Rustichelli F, Amler E, Rampichová M. Needleless electrospun and centrifugal spun poly-ε-caprolactone scaffolds as a carrier for platelets in tissue engineering applications: A comparative study with hMSCs. Mater Sci Eng C Mater Biol Appl 2018; 97:567-575. [PMID: 30678943 DOI: 10.1016/j.msec.2018.12.069] [Citation(s) in RCA: 18] [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] [Received: 01/25/2018] [Revised: 12/20/2018] [Accepted: 12/20/2018] [Indexed: 12/20/2022]
Abstract
The biofunctionalization of scaffolds for tissue engineering is crucial to improve the results of regenerative therapies. This study compared the effect of platelet-functionalization of 2D electrospun and 3D centrifugal spun scaffolds on the osteogenic potential of hMSCs. Scaffolds prepared from poly-ε-caprolactone, using electrospinning and centrifugal spinning technology, were functionalized using five different concentrations of platelets. Cell proliferation, metabolic activity and osteogenic differentiation were tested using hMSCs cultured in differential and non-differential medium. The porous 3D structure of the centrifugal spun fibers resulted in higher cell proliferation. Furthermore, the functionalization of the scaffolds with platelets resulted in a dose-dependent increase in cell metabolic activity, proliferation and production of an osteogenic marker - alkaline phosphatase. The effect was further promoted by culture in an osteogenic differential medium. The increase in combination of both platelets and osteogenic media shows an improved osteoinduction by platelets in environments rich in inorganic phosphate and ascorbate. Nevertheless, the results of the study showed that the optimal concentration of platelets for induction of hMSC osteogenesis is in the range of 900-3000 × 109 platelets/L. The study determines the potential of electrospun and centrifugal spun fibers with adhered platelets, for use in bone tissue engineering.
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Affiliation(s)
- V Lukášová
- University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague, Třinecká 1024, 273 43, Buštěhrad, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic; Department of Cell Biology, Faculty of Science, Charles University, Albertov 6, 128 43 Prague, Czech Republic
| | - M Buzgo
- University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague, Třinecká 1024, 273 43, Buštěhrad, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic; InoCure s.r.o., Politických vězňů 935/13, Prague 1, Czech Republic
| | - K Vocetková
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic
| | - V Sovková
- University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague, Třinecká 1024, 273 43, Buštěhrad, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic; Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Uvalu 84, Prague 5-Motol 150 06, Czech Republic
| | - M Doupník
- University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague, Třinecká 1024, 273 43, Buštěhrad, Czech Republic; InoCure s.r.o., Politických vězňů 935/13, Prague 1, Czech Republic
| | - E Himawan
- InoCure s.r.o., Politických vězňů 935/13, Prague 1, Czech Republic
| | - A Staffa
- University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague, Třinecká 1024, 273 43, Buštěhrad, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic; InoCure s.r.o., Politických vězňů 935/13, Prague 1, Czech Republic
| | - R Sedláček
- Laboratory of Biomechanics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague 6, Czech Republic
| | - H Chlup
- Laboratory of Biomechanics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague 6, Czech Republic
| | - F Rustichelli
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic
| | - E Amler
- University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague, Třinecká 1024, 273 43, Buštěhrad, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic; Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Uvalu 84, Prague 5-Motol 150 06, Czech Republic
| | - M Rampichová
- University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague, Třinecká 1024, 273 43, Buštěhrad, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 40 Prague, Czech Republic.
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21
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East B, Plencner M, Kralovic M, Rampichova M, Sovkova V, Vocetkova K, Otahal M, Tonar Z, Kolinko Y, Amler E, Hoch J. A polypropylene mesh modified with poly-ε-caprolactone nanofibers in hernia repair: large animal experiment. Int J Nanomedicine 2018; 13:3129-3143. [PMID: 29881270 PMCID: PMC5978460 DOI: 10.2147/ijn.s159480] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Purpose Incisional hernia repair is an unsuccessful field of surgery, with long-term recurrence rates reaching up to 50% regardless of technique or mesh material used. Various implants and their positioning within the abdominal wall pose numerous long-term complications that are difficult to treat due to their permanent nature and the chronic foreign body reaction they trigger. Materials mimicking the 3D structure of the extracellular matrix promote cell adhesion, proliferation, migration, and differentiation. Some electrospun nanofibrous scaffolds provide a topography of a natural extracellular matrix and are cost effective to manufacture. Materials and methods A composite scaffold that was assembled out of a standard polypropylene hernia mesh and poly-ε-caprolactone (PCL) nanofibers was tested in a large animal model (minipig), and the final scar tissue was subjected to histological and biomechanical testing to verify our in vitro results published previously. Results We have demonstrated that a layer of PCL nanofibers leads to tissue overgrowth and the formation of a thick fibrous plate around the implant. Collagen maturation is accelerated, and the final scar is more flexible and elastic than under a standard polypropylene mesh with less pronounced shrinkage observed. However, the samples with the composite scaffold were less resistant to distracting forces than when a standard mesh was used. We believe that the adverse effects could be caused due to the material assembly, as they do not comply with our previous results. Conclusion We believe that PCL nanofibers on their own can cause enough fibroplasia to be used as a separate material without the polypropylene base, thus avoiding potential adverse effects caused by any added substances.
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Affiliation(s)
- Barbora East
- Second Medical Faculty, Charles University in Prague, Prague, Czech Republic.,Third Department of Surgery, Motol Faculty Hospital, First Medical Faculty, Charles University in Prague, Prague, Czech Republic
| | - Martin Plencner
- Institute of Experimental Medicine, The Czech Academy of Sciences, Prague, Czech Republic.,The Czech Academy of Sciences, Institute of Physiology, Prague, Czech Republic
| | - Martin Kralovic
- Second Medical Faculty, Charles University in Prague, Prague, Czech Republic.,Institute of Experimental Medicine, The Czech Academy of Sciences, Prague, Czech Republic.,University Centre of Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Michala Rampichova
- Institute of Experimental Medicine, The Czech Academy of Sciences, Prague, Czech Republic
| | - Vera Sovkova
- Second Medical Faculty, Charles University in Prague, Prague, Czech Republic.,Institute of Experimental Medicine, The Czech Academy of Sciences, Prague, Czech Republic.,University Centre of Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Karolina Vocetkova
- Second Medical Faculty, Charles University in Prague, Prague, Czech Republic.,Institute of Experimental Medicine, The Czech Academy of Sciences, Prague, Czech Republic.,University Centre of Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Martin Otahal
- Department of Anatomy and Biomechanics, Faculty of Physical Education, Charles University in Prague, Prague, Czech Republic.,Department of Natural Sciences, Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czech Republic
| | - Zbynek Tonar
- Department of Histology and Embryology.,Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, Pilsen, Czech Republic
| | - Yaroslav Kolinko
- Department of Histology and Embryology.,Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, Pilsen, Czech Republic
| | - Evzen Amler
- Second Medical Faculty, Charles University in Prague, Prague, Czech Republic.,Institute of Experimental Medicine, The Czech Academy of Sciences, Prague, Czech Republic.,University Centre of Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Jiri Hoch
- Second Medical Faculty, Charles University in Prague, Prague, Czech Republic.,Surgery Department, Motol Faculty Hospital, Second Medical Faculty, Charles University in Prague, Prague, Czech Republic
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22
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Rampichová M, Chvojka J, Jenčová V, Kubíková T, Tonar Z, Erben J, Buzgo M, Daňková J, Litvinec A, Vocetková K, Plencner M, Prosecká E, Sovková V, Lukášová V, Králíčková M, Lukáš D, Amler E. The combination of nanofibrous and microfibrous materials for enhancement of cell infiltration and
in vivo
bone tissue formation. Biomed Mater 2018; 13:025004. [DOI: 10.1088/1748-605x/aa9717] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Alaia C, Boccellino M, Zappavigna S, Amler E, Quagliuolo L, Rossetti S, Facchini G, Caraglia M. Ipilimumab for the treatment of metastatic prostate cancer. Expert Opin Biol Ther 2017; 18:205-213. [PMID: 29271259 DOI: 10.1080/14712598.2018.1420777] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
INTRODUCTION Immunotherapy with checkpoint inhibitors is beginning to be recognized as a valid weapon for the treatment of metastatic prostate cancer (PCa) when chemotherapy fails. Ipilimumab (ipi) is a fully humanized monoclonal antibody that blocks the activity of CTLA4. It also has a molecular weight of 148 kDa and is water-soluble at physiological pH. Ipi was first approved by the FDA for the treatment of malignant melanoma and is currently being studied in metastatic castration-resistant prostate cancer, with promising early results. Areas covered: The aim of this review is to collate the most significant preclinical and clinical studies available that look at ipi to propose new strategies for the future. Expert opinion: Additional studies are required to reduce toxicity and increase the activity of ipi in PCa. A possible strategy is to combine ipi with standard anti-cancer therapeutics such as vaccines, PDL1 inhibitors, antiandrogen drugs, and chemotherapy agents. Several initial results have suggested that combination strategies are useful to increase the activity in mCRPC, even if the toxicity of the treatment can increase. The activity of combined treatments is still not predictable, but considering the ongoing studies, we believe that they have good potential that will lead to the discovery of an optimal therapeutic strategy.
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Affiliation(s)
- Concetta Alaia
- a Department of Biochemistry, Biophysics and General Pathology , University of Campania "L. Vanvitelli" , Naples , Italy
| | - Mariarosaria Boccellino
- a Department of Biochemistry, Biophysics and General Pathology , University of Campania "L. Vanvitelli" , Naples , Italy
| | - Silvia Zappavigna
- a Department of Biochemistry, Biophysics and General Pathology , University of Campania "L. Vanvitelli" , Naples , Italy
| | - Evzen Amler
- b Department of Biophysics, 2nd Faculty of Medicine , Charles University Prague , Prague , Czech Republic.,c Laboratory of Tissue Engineering, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic , Prague , Czech Republic
| | - Lucio Quagliuolo
- a Department of Biochemistry, Biophysics and General Pathology , University of Campania "L. Vanvitelli" , Naples , Italy
| | - Sabrina Rossetti
- d Division of Medical Oncology, Department of Uro-Gynaecological Oncology , Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale" , Napoli , Italy.,e Progetto ONCONET2.0 - Linea progettuale 14 per l'implementazione della prevenzione e diagnosi precoce del tumore alla prostata e testicolo, Uro-Gynaechological Department of the National Institute of Tumours "G. Pascale", Regione Campania , Naples , Italy
| | - Gaetano Facchini
- d Division of Medical Oncology, Department of Uro-Gynaecological Oncology , Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale" , Napoli , Italy
| | - Michele Caraglia
- a Department of Biochemistry, Biophysics and General Pathology , University of Campania "L. Vanvitelli" , Naples , Italy
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24
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Zarone MR, Misso G, Grimaldi A, Zappavigna S, Russo M, Amler E, Di Martino MT, Amodio N, Tagliaferri P, Tassone P, Caraglia M. Evidence of novel miR-34a-based therapeutic approaches for multiple myeloma treatment. Sci Rep 2017; 7:17949. [PMID: 29263373 PMCID: PMC5738363 DOI: 10.1038/s41598-017-18186-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 12/01/2017] [Indexed: 02/07/2023] Open
Abstract
MiR-34a acts as tumor suppressor microRNA (miRNA) in several cancers, including multiple myeloma (MM), by controlling the expression of target proteins involved in cell cycle, differentiation and apoptosis. Here, we have investigated the combination between miR-34a and γ-secretase inhibitor (γSI), Sirtinol or zoledronic acid (ZOL) in order to enhance the inhibitory action of this miRNA on its canonical targets such as Notch1 and SIRT1, and on Ras/MAPK-dependent pathways. Our data demonstrate that miR-34a synthetic mimics significantly enhance the anti-tumor activity of all the above-mentioned anti-cancer agents in RPMI 8226 MM cells. We found that γSI enhanced miR-34a-dependent anti-tumor effects by activating the extrinsic apoptotic pathway which could overcome the cytoprotective autophagic mechanism. Moreover, the combination between miR-34a and γSI increased the cell surface calreticulin (CRT) expression, that is well known for triggering anti-tumor immunological response. The combination between miR-34a and Sirtinol induced the activation of an intrinsic apoptotic pathway along with increased surface expression of CRT. Regarding ZOL, we found a powerful growth inhibition after enforced miR-34a expression, which was not likely attributable to neither apoptosis nor autophagy modulation. Based on our data, the combination of miR-34a with other anti-cancer agents appears a promising anti-MM strategy deserving further investigation.
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Affiliation(s)
- Mayra Rachele Zarone
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Gabriella Misso
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Anna Grimaldi
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Silvia Zappavigna
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Margherita Russo
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Evzen Amler
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, Prague, Czech Republic
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
| | - Maria Teresa Di Martino
- Department of Experimental and Clinical Medicine, Magna Graecia University, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, Magna Graecia University, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Pierosandro Tagliaferri
- Department of Experimental and Clinical Medicine, Magna Graecia University, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Pierfrancesco Tassone
- Department of Experimental and Clinical Medicine, Magna Graecia University, Salvatore Venuta University Campus, Catanzaro, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli", Naples, Italy.
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA.
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25
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Buzgo M, Filova E, Staffa AM, Rampichova M, Doupnik M, Vocetkova K, Lukasova V, Kolcun R, Lukas D, Necas A, Amler E. Needleless emulsion electrospinning for the regulated delivery of susceptible proteins. J Tissue Eng Regen Med 2017; 12:583-597. [PMID: 28508471 DOI: 10.1002/term.2474] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 04/12/2017] [Accepted: 05/09/2017] [Indexed: 12/12/2022]
Abstract
In the present work, we developed a novel needleless emulsion electrospinning technique that improves the production rate of the core/shell production process. The nanofibres are based on poly-ε-caprolactone (PCL) as a continuous phase combined with a droplet phase based on Pluronic F-68 (PF-68). The PCL-PF-68 nanofibres show a time-regulated release of active molecules. Needleless emulsion electrospinning was used to encapsulate a diverse set of compounds to the core phase [i.e. 5-(4,6-dichlorotriazinyl) aminofluorescein -PF-68, horseradish peroxidase, Tetramethylrhodamine-dextran, insulin growth factor-I, transforming growth factor-β and basic fibroblast growth factor]. In addition, the PF-68 facilitates the preservation of the bioactivity of delivered proteins. The system's potential was highlighted by an improvement in the metabolic activity and proliferation of mesenchymal stem cells. The developed system has the potential to deliver susceptible molecules in tissue-engineering applications.
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Affiliation(s)
- Matej Buzgo
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Centre of Energetically Efficient Buildings, Czech Technical University, Buštěhrad, Czech Republic
| | - Eva Filova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Andrea Mickova Staffa
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Centre of Energetically Efficient Buildings, Czech Technical University, Buštěhrad, Czech Republic
| | - Michala Rampichova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Centre of Energetically Efficient Buildings, Czech Technical University, Buštěhrad, Czech Republic
| | - Miroslav Doupnik
- University Centre of Energetically Efficient Buildings, Czech Technical University, Buštěhrad, Czech Republic
| | - Karolina Vocetkova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Centre of Energetically Efficient Buildings, Czech Technical University, Buštěhrad, Czech Republic
| | - Vera Lukasova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Centre of Energetically Efficient Buildings, Czech Technical University, Buštěhrad, Czech Republic
| | - Radka Kolcun
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - David Lukas
- Department of Nonwovens and Nanofibrous Materials, Technical University of Liberec, Liberec, Czech Republic
| | - Alois Necas
- Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Evzen Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Centre of Energetically Efficient Buildings, Czech Technical University, Buštěhrad, Czech Republic
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26
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Rampichová M, Košt'áková Kuželová E, Filová E, Chvojka J, Šafka J, Pelcl M, Daňková J, Prosecká E, Buzgo M, Plencner M, Lukáš D, Amler E. Composite 3D printed scaffold with structured electrospun nanofibers promotes chondrocyte adhesion and infiltration. Cell Adh Migr 2017; 12:271-285. [PMID: 29130836 DOI: 10.1080/19336918.2017.1385713] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Additive manufacturing, also called 3D printing, is an effective method for preparing scaffolds with defined structure and porosity. The disadvantage of the technique is the excessive smoothness of the printed fibers, which does not support cell adhesion. In the present study, a 3D printed scaffold was combined with electrospun classic or structured nanofibers to promote cell adhesion. Structured nanofibers were used to improve the infiltration of cells into the scaffold. Electrospun layers were connected to 3D printed fibers by gluing, thus enabling the fabrication of scaffolds with unlimited thickness. The composite 3D printed/nanofibrous scaffolds were seeded with primary chondrocytes and tested in vitro for cell adhesion, proliferation and differentiation. The experiment showed excellent cell infiltration, viability, and good cell proliferation. On the other hand, partial chondrocyte dedifferentiation was shown. Other materials supporting chondrogenic differentiation will be investigated in future studies.
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Affiliation(s)
- M Rampichová
- a University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague , Buštěhrad , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - E Košt'áková Kuželová
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - E Filová
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - J Chvojka
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - J Šafka
- d Technical University of Liberec , Department of Manufacturing Systems and Automatization , Liberec , Czech Republic
| | - M Pelcl
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - J Daňková
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - E Prosecká
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - M Buzgo
- a University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague , Buštěhrad , Czech Republic
| | - M Plencner
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - D Lukáš
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - E Amler
- a University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague , Buštěhrad , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
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Boccellino M, Vanacore D, Zappavigna S, Cavaliere C, Rossetti S, D'Aniello C, Chieffi P, Amler E, Buonerba C, Di Lorenzo G, Di Franco R, Izzo A, Piscitelli R, Iovane G, Muto P, Botti G, Perdonà S, Caraglia M, Facchini G. Testicular cancer from diagnosis to epigenetic factors. Oncotarget 2017; 8:104654-104663. [PMID: 29262668 PMCID: PMC5732834 DOI: 10.18632/oncotarget.20992] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 08/29/2017] [Indexed: 12/16/2022] Open
Abstract
Testicular cancer (TC) is one of the most common neoplasms that occurs in male and includes germ cell tumors (GCT), sex cord-gonadal stromal tumors and secondary testicular tumors. Diagnosis of TC involves the evaluation of serum tumor markers alpha-fetoprotein, human chorionic gonadotropin and lactate dehydrogenase, but clinically several types of immunohistochemical markers are more useful and more sensitive in GCT, but not in teratoma. These new biomarkers are genes expressed in primordial germ cells/gonocytes and embryonic pluripotency-related cells but not in normal adult germ cells and they include PLAP, OCT3/4 (POU5F1), NANOG, SOX2, REX1, AP-2γ (TFAP2C) and LIN28. Gene expression in GCT is regulated, at least in part, by DNA and histone modifications, and the epigenetic profile of these tumours is characterised by genome-wide demethylation. There are different epigenetic modifications in TG-subtypes that reflect the normal developmental switch in primordial germ cells from an under- to normally methylated genome. The main purpose of this review is to illustrate the findings of recent investigations in the classification of male genital organs, the discoveries in the use of prognostic and diagnostic markers and the epigenetic aberrations mainly affecting the patterns of DNA methylation/histone modifications of genes (especially tumor suppressors) and microRNAs (miRNAs).
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Affiliation(s)
- Mariarosaria Boccellino
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Daniela Vanacore
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy.,Progetto ONCONET 2.0, Linea progettuale 14 per l'implementazione della prevenzione e diagnosi precoce del tumore alla prostata e testicolo, Regione Campania, Italy
| | - Silvia Zappavigna
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Carla Cavaliere
- Medical Oncology Unit, ASL NA 3 SUD, Ospedali Riuniti Area Nolana, Nola, Italy
| | - Sabrina Rossetti
- Progetto ONCONET 2.0, Linea progettuale 14 per l'implementazione della prevenzione e diagnosi precoce del tumore alla prostata e testicolo, Regione Campania, Italy.,Division of Medical Oncology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale'-IRCCS, Naples, Italy
| | - Carmine D'Aniello
- Division of Medical Oncology, A.O.R.N. dei COLLI "Ospedali Monaldi-Cotugno-CTO", Napoli, Italy
| | - Paolo Chieffi
- Department of Psychology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Evzen Amler
- 2nd Faculty of Medicine, Charles University, V Uvalu 84, Prague 5, Czech Republic.,Faculty of Biomedical Engineering, UCEEB, CVUT, Zikova 4, Prague 6, Student Science, H.Podluzi, Prague, Czech Republic
| | - Carlo Buonerba
- Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Giuseppe Di Lorenzo
- Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Rossella Di Franco
- Progetto ONCONET 2.0, Linea progettuale 14 per l'implementazione della prevenzione e diagnosi precoce del tumore alla prostata e testicolo, Regione Campania, Italy.,Radiation Oncology, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale'-IRCCS, Napoli, Italy
| | - Alessandro Izzo
- Division of Urology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale'-IRCCS, Naples, Italy
| | - Raffaele Piscitelli
- Progetto ONCONET 2.0, Linea progettuale 14 per l'implementazione della prevenzione e diagnosi precoce del tumore alla prostata e testicolo, Regione Campania, Italy
| | - Gelsomina Iovane
- Division of Medical Oncology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale'-IRCCS, Naples, Italy
| | - Paolo Muto
- Radiation Oncology, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale'-IRCCS, Napoli, Italy
| | - Gerardo Botti
- Pathology Unit, Istituto Nazionale Tumori "Fondazione G. Pascale"- IRCCS, Naples, Italy.,Scientific Management, Istituto Nazionale Tumori 'Fondazione G. Pascale'-IRCCS, Naples, Italy
| | - Sisto Perdonà
- Division of Urology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale'-IRCCS, Naples, Italy
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Gaetano Facchini
- Progetto ONCONET 2.0, Linea progettuale 14 per l'implementazione della prevenzione e diagnosi precoce del tumore alla prostata e testicolo, Regione Campania, Italy.,Division of Medical Oncology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale'-IRCCS, Naples, Italy
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Lukasova V, Buzgo M, Sovkova V, Dankova J, Rampichova M, Amler E. Osteogenic differentiation of 3D cultured mesenchymal stem cells induced by bioactive peptides. Cell Prolif 2017; 50. [PMID: 28714176 DOI: 10.1111/cpr.12357] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 05/10/2017] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES Bioactive peptides derived from receptor binding motifs of native proteins are a potent source of bioactive molecules that can induce signalling pathways. These peptides could substitute for osteogenesis promoting supplements. The work presented here compares three kinds of bioactive peptides derived from collagen III, bone morphogenetic protein 7 (BMP-7) and BMP-2 with their potential osteogenic activity on the model of porcine mesenchymal stem cells (pMSCs). MATERIALS AND METHODS pMSCs were cultured on electrospun polycaprolactone nanofibrous scaffolds with different concentrations of the bioactive peptides without addition of any osteogenic supplement. Analysis of pMSCs cultures included measurement of the metabolic activity and proliferation, immunofluorescence staining and also qPCR. RESULTS Results showed no detrimental effect of the bioactive peptides to cultured pMSCs. Based on qPCR analysis, the bioactive peptides are specific for osteogenic differentiation with no detectable expression of collagen II. Our results further indicate that peptide derived from BMP-2 protein promoted the expression of mRNA for osteocalcin (OCN) and collagen I significantly compared to control groups and also supported deposition of OCN as observed by immunostaining method. CONCLUSION The data suggest that bioactive peptide with an amino acid sequence of KIPKASSVPTELSAISTLYL derived from BMP-2 protein was the most potent for triggering osteogenic differentiation of pMSCs.
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Affiliation(s)
- Vera Lukasova
- Faculty of Science, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Matej Buzgo
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,University Center for Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Vera Sovkova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jana Dankova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Michala Rampichova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Center for Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Evzen Amler
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,University Center for Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
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Sovkova V, Vocetkova K, Rampichova M, Mickova A, Buzgo M, Lukasova V, Dankova J, Filova E, Necas A, Amler E. Platelet lysate as a serum replacement for skin cell culture on biomimetic PCL nanofibers. Platelets 2017. [PMID: 28649896 DOI: 10.1080/09537104.2017.1316838] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Platelets are a popular source of native growth factors for tissue engineering applications. The aim of the study was to verify the use of platelet lysate as a fetal bovine serum (FBS) replacement for skin cell culture. The cytokine content of the platelet lysate was characterized using the Bio-Plex system. The cells (fibroblasts, melanocytes, and keratinocytes) were cultured on PCL nanofibrous scaffolds to mimic their natural microenvironment. The cytokine content of the platelet lysate was determined, and to the cells, a medium containing platelet lysate or platelet lysate in combination with FBS was added. The results showed that 7% (v/v) platelet lysate was sufficient to supplement 10% (v/v) FBS in the culture of fibroblasts and keratinocytes. The combination of platelet lysate and FBS had a rather inhibitory effect on fibroblasts, in contrary to keratinocytes, where the effect was synergic. Platelet lysate did not sufficiently promote proliferation in melanocytes; however, the combination of FBS and platelet lysate yielded a better outcome and resulted in bipolar morphology of the cultured melanocytes. The data indicated that platelet lysate improved cell proliferation and metabolic activity and may be used as an additive to the cell culture media.
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Affiliation(s)
- Vera Sovkova
- a Institute of Biophysics, 2nd Faculty of Medicine , Charles University , Prague , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,c Faculty of Biomedical Engineering , Czech Technical University , Nám. Sítná Kladno , Czech Republic
| | - Karolina Vocetkova
- a Institute of Biophysics, 2nd Faculty of Medicine , Charles University , Prague , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,c Faculty of Biomedical Engineering , Czech Technical University , Nám. Sítná Kladno , Czech Republic.,d University Center for Energy Efficient Buildings , Czech Technical University , Bustehrad , Czech Republic
| | - Michala Rampichova
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,d University Center for Energy Efficient Buildings , Czech Technical University , Bustehrad , Czech Republic
| | - Andrea Mickova
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,d University Center for Energy Efficient Buildings , Czech Technical University , Bustehrad , Czech Republic.,e Faculty of Veterinary Medicine , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Matej Buzgo
- a Institute of Biophysics, 2nd Faculty of Medicine , Charles University , Prague , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,d University Center for Energy Efficient Buildings , Czech Technical University , Bustehrad , Czech Republic
| | - Vera Lukasova
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,f Faculty of Sciences , Charles University , Prague , Czech Republic
| | - Jana Dankova
- a Institute of Biophysics, 2nd Faculty of Medicine , Charles University , Prague , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic
| | - Eva Filova
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,c Faculty of Biomedical Engineering , Czech Technical University , Nám. Sítná Kladno , Czech Republic
| | - Alois Necas
- e Faculty of Veterinary Medicine , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Evzen Amler
- a Institute of Biophysics, 2nd Faculty of Medicine , Charles University , Prague , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine , Czech Academy of Sciences , Prague , Czech Republic.,c Faculty of Biomedical Engineering , Czech Technical University , Nám. Sítná Kladno , Czech Republic.,d University Center for Energy Efficient Buildings , Czech Technical University , Bustehrad , Czech Republic
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Tejral G, Sopko B, Necas A, Schoner W, Amler E. Computer modelling reveals new conformers of the ATP binding loop of Na +/K +-ATPase involved in the transphosphorylation process of the sodium pump. PeerJ 2017; 5:e3087. [PMID: 28316890 PMCID: PMC5354106 DOI: 10.7717/peerj.3087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 02/14/2017] [Indexed: 01/02/2023] Open
Abstract
Hydrolysis of ATP by Na+/K+-ATPase, a P-Type ATPase, catalyzing active Na+ and K+ transport through cellular membranes leads transiently to a phosphorylation of its catalytical α-subunit. Surprisingly, three-dimensional molecular structure analysis of P-type ATPases reveals that binding of ATP to the N-domain connected by a hinge to the P-domain is much too far away from the Asp369 to allow the transfer of ATP’s terminal phosphate to its aspartyl-phosphorylation site. In order to get information for how the transfer of the γ-phosphate group of ATP to the Asp369 is achieved, analogous molecular modeling of the M4–M5 loop of ATPase was performed using the crystal data of Na+/K+-ATPase of different species. Analogous molecular modeling of the cytoplasmic loop between Thr338 and Ile760 of the α2-subunit of Na+/K+-ATPase and the analysis of distances between the ATP binding site and phosphorylation site revealed the existence of two ATP binding sites in the open conformation; the first one close to Phe475 in the N-domain, the other one close to Asp369 in the P-domain. However, binding of Mg2+•ATP to any of these sites in the “open conformation” may not lead to phosphorylation of Asp369. Additional conformations of the cytoplasmic loop were found wobbling between “open conformation” <==> “semi-open conformation <==> “closed conformation” in the absence of 2Mg2+•ATP. The cytoplasmic loop’s conformational change to the “semi-open conformation”—characterized by a hydrogen bond between Arg543 and Asp611—triggers by binding of 2Mg2+•ATP to a single ATP site and conversion to the “closed conformation” the phosphorylation of Asp369 in the P-domain, and hence the start of Na+/K+-activated ATP hydrolysis.
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Affiliation(s)
- Gracian Tejral
- Department of Biophysics, 2nd Faculty of Medicine, Charles University Prague, Prague, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Bruno Sopko
- Department of Medical Chemistry and Clinical Biochemistry, 2nd Faculty of Medicine, Charles University Prague , Prague , Czech Republic
| | - Alois Necas
- Small Animal Clinic, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Science , Brno , Czech Republic
| | - Wilhelm Schoner
- Institute of Biochemistry and Endocrinology, University of Giessen , Giessen , Germany
| | - Evzen Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University Prague, Prague, Czech Republic; Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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31
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Vocetkova K, Buzgo M, Sovkova V, Rampichova M, Staffa A, Filova E, Lukasova V, Doupnik M, Fiori F, Amler E. A comparison of high throughput core–shell 2D electrospinning and 3D centrifugal spinning techniques to produce platelet lyophilisate-loaded fibrous scaffolds and their effects on skin cells. RSC Adv 2017. [DOI: 10.1039/c7ra08728d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Nanofibres enriched with bioactive molecules, as actively acting scaffolds, play an important role in tissue engineering.
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Buzgo M, Rampichova M, Vocetkova K, Sovkova V, Lukasova V, Doupnik M, Mickova A, Rustichelli F, Amler E. Emulsion centrifugal spinning for production of 3D drug releasing nanofibres with core/shell structure. RSC Adv 2017. [DOI: 10.1039/c6ra26606a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Herein we describe the core/shell centrifugal spinning process to deliver susceptible bioactive molecules.
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Affiliation(s)
- Matej Buzgo
- Department of Biophysics
- 2nd Faculty of Medicine
- Charles University in Prague
- 150 06 Prague 5
- Czech Republic
| | - Michala Rampichova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- University Center of Energetically Efficient Buildings
| | - Karolina Vocetkova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
| | - Vera Sovkova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
| | - Vera Lukasova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
| | - Miroslav Doupnik
- University Center of Energetically Efficient Buildings
- Czech Technical University
- 273 43 Buštěhrad
- Czech Republic
| | - Andrea Mickova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- University Center of Energetically Efficient Buildings
| | - Franco Rustichelli
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
| | - Evzen Amler
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
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Vocetkova K, Buzgo M, Sovkova V, Bezdekova D, Kneppo P, Amler E. Nanofibrous polycaprolactone scaffolds with adhered platelets stimulate proliferation of skin cells. Cell Prolif 2016; 49:568-78. [PMID: 27452632 PMCID: PMC6495737 DOI: 10.1111/cpr.12276] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES Faulty wound healing is a global healthcare problem. Chronic wounds are generally characterized by a reduction in availability of growth factors. New strategies are being developed to deliver growth factors more effectively. METHODS In this study, we introduced electrospun scaffolds composed of polycaprolactone (PCL) nanofibers functionalized with adhered platelets, as a source of numerous growth factors. Three concentrations of platelets were immobilized to nanofibrous scaffolds by simple adhesion, and their influence on adhesion, proliferation and metabolic activity of seeded cells (murine fibroblasts, keratinocytes and melanocytes) was investigated. RESULTS The data obtained indicated that presence of platelets significantly promoted cell spreading, proliferation and metabolic activity in all the skin-associated cell types. There were no significant differences among tested concentrations of platelets, thus even the lowest concentration sufficiently promoted proliferation of the seeded cells. CONCLUSIONS Such complex stimulation is needed for improved healing of chronic wounds. However, the nanofibrous system can be used not only as a skin cover, but also in broader applications in regenerative medicine.
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Affiliation(s)
- K Vocetkova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, 150 06, Prague 5, Czech Republic.
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague 4, Czech Republic.
- University Center for Energy Efficient Buildings, Czech Technical University in Prague, 273 43, Bustehrad, Czech Republic.
- Faculty of Biomedical Engineering, Czech Technical University in Prague, 272 01, Kladno 2, Czech Republic.
| | - M Buzgo
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, 150 06, Prague 5, Czech Republic
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague 4, Czech Republic
- University Center for Energy Efficient Buildings, Czech Technical University in Prague, 273 43, Bustehrad, Czech Republic
| | - V Sovkova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, 150 06, Prague 5, Czech Republic
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague 4, Czech Republic
| | - D Bezdekova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, 150 06, Prague 5, Czech Republic
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague 4, Czech Republic
| | - P Kneppo
- Faculty of Biomedical Engineering, Czech Technical University in Prague, 272 01, Kladno 2, Czech Republic
| | - E Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, 150 06, Prague 5, Czech Republic
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague 4, Czech Republic
- University Center for Energy Efficient Buildings, Czech Technical University in Prague, 273 43, Bustehrad, Czech Republic
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34
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Prosecká E, Rampichová M, Litvinec A, Tonar Z, Králíčková M, Vojtová L, Kochová P, Plencner M, Buzgo M, Míčková A, Jančář J, Amler E. Collagen/hydroxyapatite scaffold enriched with polycaprolactone nanofibers, thrombocyte-rich solution and mesenchymal stem cells promotes regeneration in large bone defect in vivo. J Biomed Mater Res A 2014; 103:671-82. [PMID: 24838634 DOI: 10.1002/jbm.a.35216] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 04/09/2014] [Accepted: 05/01/2014] [Indexed: 12/30/2022]
Abstract
A three-dimensional scaffold of type I collagen and hydroxyapatite enriched with polycaprolactone nanofibers (Coll/HA/PCL), autologous mesenchymal stem cells (MSCs) in osteogenic media, and thrombocyte-rich solution (TRS) was an optimal implant for bone regeneration in vivo in white rabbits. Nanofibers optimized the viscoelastic properties of the Coll/HA scaffold for bone regeneration. MSCs and TRS in the composite scaffold improved bone regeneration. Three types of Coll/HA/PCL scaffold were prepared: an MSC-enriched scaffold, a TRS-enriched scaffold, and a scaffold enriched with both MSCs and TRS. These scaffolds were implanted into femoral condyle defects 6 mm in diameter and 10-mm deep. Untreated defects were used as a control. Macroscopic and histological analyses of the regenerated tissue from all groups were performed 12 weeks after implantation. The highest volume and most uniform distribution of newly formed bone occurred in defects treated with scaffolds enriched with both MSCs and TRS compared with that in defects treated with scaffolds enriched by either component alone. The modulus of elasticity in compressive testing was significantly higher in the Coll/HA/PCL scaffold than those without nanofibers. The composite Coll scaffold functionalized with PCL nanofibers and enriched with MSCs and TRS appears to be a novel treatment for bone defects.
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Affiliation(s)
- E Prosecká
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Uvalu 84, 150 06, Prague, Czech Republic; Department of Tissue Engineering, Institute of Experimental Medicine ASCR v.v.i., Vídeňská 1083, 14240, Prague, Czech Republic; Student Science s.r.o., Horní Podluží 237, Horní Podluží, 407 57, Czech Republic
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35
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Rampichová M, Chvojka J, Buzgo M, Prosecká E, Mikeš P, Vysloužilová L, Tvrdík D, Kochová P, Gregor T, Lukáš D, Amler E. Elastic three-dimensional poly (ε-caprolactone) nanofibre scaffold enhances migration, proliferation and osteogenic differentiation of mesenchymal stem cells. Cell Prolif 2012; 46:23-37. [PMID: 23216517 DOI: 10.1111/cpr.12001] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 08/17/2012] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES We prepared 3D poly (ε-caprolactone) (PCL) nanofibre scaffolds and tested their use for seeding, proliferation, differentiation and migration of mesenchymal stem cell (MSCs). MATERIALS AND METHODS 3D nanofibres were prepared using a special collector for common electrospinning; simultaneously, a 2D PCL nanofibre layer was prepared using a classic plain collector. Both scaffolds were seeded with MSCs and biologically tested. MSC adhesion, migration, proliferation and osteogenic differentiation were investigated. RESULTS The 3D PCL scaffold was characterized by having better biomechanical properties, namely greater elasticity and resistance against stress and strain, thus this scaffold will be able to find broad applications in tissue engineering. Clearly, while nanofibre layers of the 2D scaffold prevented MSCs from migrating through the conformation, cells infiltrated freely through the 3D scaffold. MSC adhesion to the 3D nanofibre PCL layer was also statistically more common than to the 2D scaffold (P < 0.05), and proliferation and viability of MSCs 2 or 3 weeks post-seeding, were also greater on the 3D scaffold. In addition, the 3D PCL scaffold was also characterized by displaying enhanced MSC osteogenic differentiation. CONCLUSIONS We draw the conclusion that all positive effects observed using the 3D PCL nanofibre scaffold are related to the larger fibre surface area available to the cells. Thus, the proposed 3D structure of the nanofibre layer will find a wide array of applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- M Rampichová
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Science of the Czech Republic, Videnska 1083, 142 40, Prague, Czech Republic.
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36
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Mickova A, Buzgo M, Benada O, Rampichova M, Fisar Z, Filova E, Tesarova M, Lukas D, Amler E. Core/Shell Nanofibers with Embedded Liposomes as a Drug Delivery System. Biomacromolecules 2012; 13:952-62. [DOI: 10.1021/bm2018118] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea Mickova
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
| | - Matej Buzgo
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
| | - Oldrich Benada
- Laboratory of Molecular Structure
Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech
Republic
| | - Michala Rampichova
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
| | - Zdenek Fisar
- Department
of Psychiatry, First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Eva Filova
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
- Faculty of Biomedical Engineering, Czech Technical University, Sítná 3105,
272 01 Kladno, Czech Republic
| | - Martina Tesarova
- Laboratory of Electron Microscopy, Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branisovska
31, 37005 Ceske Budejovice, Czech Republic
| | - David Lukas
- Department of Nonwovens, Technical University of Liberec, Studentska
2, 461 17 Liberec, Czech Republic
| | - Evzen Amler
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
- Faculty of Biomedical Engineering, Czech Technical University, Sítná 3105,
272 01 Kladno, Czech Republic
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Norris S, Humpolíčková J, Amler E, Huranová M, Buzgo M, Macháň R, Lukáš D, Hof M. Raster image correlation spectroscopy as a novel tool to study interactions of macromolecules with nanofiber scaffolds. Acta Biomater 2011; 7:4195-203. [PMID: 21801861 DOI: 10.1016/j.actbio.2011.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Revised: 06/28/2011] [Accepted: 07/07/2011] [Indexed: 11/27/2022]
Abstract
Dynamic processes such as diffusion and binding/unbinding of macromolecules (e.g. growth factors or nutrients) are crucial parameters for the design and application of effective artificial tissue materials. Here, dynamics of selected macromolecules were studied in two different composite tissue engineering scaffolds containing an electrospun nanofiber mesh (polycaprolactone or hydrophobically plasma modified polyvinylalcohol-chitosan) encapsulated in agarose hydrogels by a conventional approach fluorescence recovery after photobleaching (FRAP) and a novel technique, raster image correlation spectroscopy (RICS). The two approaches are compared, and it is shown that FRAP is unable to determine processes occurring at low molecular concentrations, especially accurately separating binding/unbinding from diffusion, and its results depend on the concentration of the studied molecules. RICS measures processes of single molecules and, because of its multiple adjustable timescales, can distinguish whether diffusion or binding controls molecular movement and separates fast diffusion from slow transient binding. In addition, RICS provides a robust read-out parameter quantifying binding affinity. Finally, the combination of FRAP and RICS helps to characterize diffusion and binding of macromolecules in tested artificial tissues better, and therefore predicts the behavior of biologically active molecules in these materials for medical applications.
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Prosecká E, Rampichová M, Vojtová L, Tvrdík D, Melčáková S, Juhasová J, Plencner M, Jakubová R, Jančář J, Nečas A, Kochová P, Klepáček J, Tonar Z, Amler E. Optimized conditions for mesenchymal stem cells to differentiate into osteoblasts on a collagen/hydroxyapatite matrix. J Biomed Mater Res A 2011; 99:307-15. [PMID: 21858919 DOI: 10.1002/jbm.a.33189] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 05/31/2011] [Accepted: 06/03/2011] [Indexed: 11/08/2022]
Abstract
Collagen/hydroxyapatite (HA) composite scaffolds are known to be suitable scaffolds for seeding with mesenchymal stem cells (MSCs) differentiated into osteoblasts and for the in vitro production of artificial bones. However, the optimal collagen/HA ratio remains unclear. Our study confirmed that a higher collagen content increased scaffold stiffness but that a greater stiffness was not sufficient for bone tissue formation, a complex process evidently also dependent on scaffold porosity. We found that the scaffold pore diameter was dependent on the concentration of collagen and HA and that it could play a key role in cell seeding. In conclusion, the optimal scaffold for new bone formation and cell proliferation was found to be a composite scaffold formed from 50 wt % HA in 0.5 wt % collagen I solution.
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Affiliation(s)
- E Prosecká
- Department of Tissue Engineering, Institute of Experimental Medicine, Academy of Science of the Czech Republic, Prague, Czech Republic.
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Jakubova R, Mickova A, Buzgo M, Rampichova M, Prosecka E, Tvrdik D, Amler E. Immobilization of thrombocytes on PCL nanofibres enhances chondrocyte proliferation in vitro. Cell Prolif 2011; 44:183-91. [PMID: 21401760 DOI: 10.1111/j.1365-2184.2011.00737.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES The aim of this study was to develop functionalized nanofibres as a simple delivery system for growth factors (GFs) and make nanofibre cell-seeded scaffold implants a one-step intervention. MATERIALS AND METHODS We have functionalized polycaprolactone (PCL) nanofibres with thrombocytes adherent on them. Immobilized, these thrombocytes attached to nanofibre scaffolds were used as a nanoscale delivery system for native (autologous) proliferation and differentiation factors, in vitro. Pig chondrocytes were seeded on the thrombocyte-coated scaffolds and levels of proliferation and differentiation of these cells were compared with those seeded on non-coated scaffolds. RESULTS Immobilized thrombocytes on PCL nanofibres effectively enhanced chondrocyte proliferation due to time-dependent degradation of thrombocytes and release of their GFs. CONCLUSIONS These simply functionalized scaffolds present new possibilities for nanofibre applications, as smart cell scaffolds equipped with a GF delivery tool.
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Affiliation(s)
- R Jakubova
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
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40
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Filova E, Burdikova Z, Rampichova M, Bianchini P, Capek M, Kostakova E, Amler E, Kubinova L. Analysis and three-dimensional visualization of collagen in artificial scaffolds using nonlinear microscopy techniques. J Biomed Opt 2010; 15:066011. [PMID: 21198185 DOI: 10.1117/1.3509112] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Extracellularly distributed collagen and chondrocytes seeded in gelatine and poly-ɛ-caprolactone scaffolds are visualized by two-photon excitation microscopy (TPEM) and second-harmonic generation (SHG) imaging in both forward and backward nondescanned modes. Joint application of TPEM and SHG imaging in combination with stereological measurements of collagen enables us not only to take high-resolution 3-D images, but also to quantitatively analyze the collagen volume and a spatial arrangement of cell-collagen-scaffold systems, which was previously impossible. This novel approach represents a powerful tool for the analysis of collagen-containing scaffolds with applications in cartilage tissue engineering.
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Affiliation(s)
- Eva Filova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídeňská 1083, 14220 Prague, Czech Republic
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Rampichová M, Koštáková E, Filová E, Prosecká E, Plencner M, Ocheretná L, Lytvynets A, Lukáš D, Amler E. Non-woven PGA/PVA fibrous mesh as an appropriate scaffold for chondrocyte proliferation. Physiol Res 2010; 59:773-781. [PMID: 20406034 DOI: 10.33549/physiolres.931888] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Non-woven textile mesh from polyglycolic acid (PGA) was found as a proper material for chondrocyte adhesion but worse for their proliferation. Neither hyaluronic acid nor chitosan nor polyvinyl alcohol (PVA) increased chondrocyte adhesion. However, chondrocyte proliferation suffered from acidic byproducts of PGA degradation. However, the addition of PVA and/or chitosan into a wet-laid non-woven textile mesh from PGA improved chondrocyte proliferation seeded in vitro on the PGA-based composite scaffold namely due to a diminished acidification of their microenvironment. This PVA/PGA composite mesh used in combination with a proper hydrogel minimized the negative effect of PGA degradation without dropping positive parameters of the PGA wet-laid non-woven textile mesh. In fact, presence of PVA and/or chitosan in the PGA-based wet-laid non-woven textile mesh even advanced the PGA-based wet-laid non-woven textile mesh for chondrocyte seeding and artificial cartilage production due to a positive effect of PVA in such a scaffold on chondrocyte proliferation.
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Affiliation(s)
- M Rampichová
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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Necas A, Plánka L, Srnec R, Crha M, Hlučilová J, Klíma J, Starý D, Kren L, Amler E, Vojtová L, Jančář J, Gál P. Quality of newly formed cartilaginous tissue in defects of articular surface after transplantation of mesenchymal stem cells in a composite scaffold based on collagen I with chitosan micro- and nanofibres. Physiol Res 2009; 59:605-614. [PMID: 19929138 DOI: 10.33549/physiolres.931725] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The aim of this study was to evaluate macroscopically, histologically and immunohistochemically the quality of newly formed tissue in iatrogenic defects of articular cartilage of the femur condyle in miniature pigs treated with the clinically used method of microfractures in comparison with the transplantation of a combination of a composite scaffold with allogeneic mesenchymal stem cells (MSCs) or the composite scaffold alone. The newly formed cartilaginous tissue filling the defects of articular cartilage after transplantation of the scaffold with MSCs (Group A) had in 60 % of cases a macroscopically smooth surface. In all lesions after the transplantation of the scaffold alone (Group B) or after the method of microfractures (Group C), erosions/fissures or osteophytes were found on the surface. The results of histological and immunohistochemical examination using the modified scoring system according to O'Driscoll were as follows: 14.7+/-3.82 points after transplantations of the scaffold with MSCs (Group A); 5.3+/-2.88 points after transplantations of the scaffold alone (Group B); and 5.2+/-0.64 points after treatment with microfractures (Group C). The O'Driscoll score in animals of Group A was significantly higher than in animals of Group B or Group C (p<0.0005 both). No significant difference was found in the O'Driscoll score between Groups B and C. The treatment of iatrogenic lesions of the articular cartilage surface on the condyles of femur in miniature pigs using transplantation of MSCs in the composite scaffold led to the filling of defects by a tissue of the appearance of hyaline cartilage. Lesions treated by implantation of the scaffold alone or by the method of microfractures were filled with fibrous cartilage with worse macroscopic, histological and immunohistochemical indicators.
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Affiliation(s)
- A Necas
- Department of Surgery and Orthopedics, Small Animal Clinic, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic.
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Grycova L, Sklenovsky P, Lansky Z, Janovska M, Otyepka M, Amler E, Teisinger J, Kubala M. ATP and magnesium drive conformational changes of the Na+/K+-ATPase cytoplasmic headpiece. Biochim Biophys Acta 2009; 1788:1081-91. [PMID: 19232513 DOI: 10.1016/j.bbamem.2009.02.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 01/16/2009] [Accepted: 02/03/2009] [Indexed: 10/21/2022]
Abstract
Conformational changes of the Na(+)/K(+)-ATPase isolated large cytoplasmic segment connecting transmembrane helices M4 and M5 (C45) induced by the interaction with enzyme ligands (i.e. Mg(2+) and/or ATP) were investigated by means of the intrinsic tryptophan fluorescence measurement and molecular dynamic simulations. Our data revealed that this model system consisting of only two domains retained the ability to adopt open or closed conformation, i.e. behavior, which is expected from the crystal structures of relative Ca(2+)-ATPase from sarco(endo)plasmic reticulum for the corresponding part of the entire enzyme. Our data revealed that the C45 is found in the closed conformation in the absence of any ligand, in the presence of Mg(2+) only, or in the simultaneous presence of Mg(2+) and ATP. Binding of the ATP alone (i.e. in the absence of Mg(2+)) induced open conformation of the C45. The fact that the transmembrane part of the enzyme was absent in our experiments suggested that the observed conformational changes are consequences only of the interaction with ATP or Mg(2+) and may not be related to the transported cations binding/release, as generally believed. Our data are consistent with the model, where ATP binding to the low-affinity site induces conformational change of the cytoplasmic part of the enzyme, traditionally attributed to E2-->E1 transition, and subsequent Mg(2+) binding to the enzyme-ATP complex induces in turn conformational change traditionally attributed to E1-->E2 transition.
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Affiliation(s)
- Lenka Grycova
- Institute of Physiology, Academy of Sciences of the Czech Republic, Vídenská 1083, 14220 Prague 4, Czech Republic
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Filová E, Jelínek F, Handl M, Lytvynets A, Rampichová M, Varga F, Cinátl J, Soukup T, Trc T, Amler E. Novel composite hyaluronan/type I collagen/fibrin scaffold enhances repair of osteochondral defect in rabbit knee. J Biomed Mater Res B Appl Biomater 2009; 87:415-24. [PMID: 18435405 DOI: 10.1002/jbm.b.31119] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A new composite scaffold containing type I collagen, hyaluronan, and fibrin was prepared with and without autologous chondrocytes and implanted into a rabbit femoral trochlea. The biophysical properties of the composite scaffold were similar to native cartilage. The macroscopic, histological, and immunohistochemical analysis of the regenerated tissue from cell-seeded scaffolds was performed 6 weeks after the implantation and predominantly showed formation of hyaline cartilage accompanied by production of glycosaminoglycans and type II collagen with minor fibro-cartilage production. Implanted scaffolds without cells healed predominantly as fibro-cartilage, although glycosaminoglycans and type II collagen, which form hyaline cartilage, were also observed. On the other hand, fibro-cartilage or fibrous tissue or both were only formed in the defects without scaffold. The new composite scaffold containing collagen type I, hyaluronan, and fibrin, seeded with autologous chondrocytes and implanted into rabbit femoral trochlea, was found to be highly effective in cartilage repair after only 6 weeks. The new composite scaffold can therefore enhance cartilage regeneration of osteochondral defects, by the supporting of the hyaline cartilage formation.
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Affiliation(s)
- Eva Filová
- Department of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
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Plánka L, Necas A, Srnec R, Rauser P, Starý D, Jančář J, Amler E, Filová E, Hlučilová J, Kren L, Gál P. Use of allogenic stem cells for the prevention of bone bridge formation in miniature pigs. Physiol Res 2008; 58:885-893. [PMID: 19093735 DOI: 10.33549/physiolres.931669] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
This study appears from an experiment previously carried out in New Zealand white rabbits. Allogenic mesenchymal stem cells (MSCs) were transplanted into an iatrogenically-created defect in the lateral section of the distal physis of the left femur in 10 miniature pigs. The right femur with the same defect served as a control. To transfer MSCs, a freshly prepared porous scaffold was used, based on collagen and chitosan, constituting a compact tube into which MSCs were implanted. The pigs were euthanized four months after the transplantation. On average, the left femur with transplanted MSCs grew more in length (0.56+/-0.14 cm) compared with right femurs with physeal defect without transplanted MSCs (0.14+/-0.3 cm). The average angular (valgus) deformity of the left femur had an angle point of 0.78 degrees , following measurement and X-ray examination, whereas in the right femur without transplantation it was 3.7 degrees. The initial results indicate that preventive transplantation of MSCs into a physeal defect may prevent valgus deformity formation and probably also reduce disorders of the longitudinal bone growth. This part of our experiment is significant in the effort to advance MSCs application in human medicine by using pig as a model, which is the next step after experimenting on rabbits.
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Affiliation(s)
- L Plánka
- Clinic of Pediatric Surgery, Orthopedics and Traumatology, the Faculty Hospital Brno, Brno, Czech Republic.
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Planka L, Gal P, Kecova H, Klima J, Hlucilova J, Filova E, Amler E, Krupa P, Kren L, Srnec R, Urbanova L, Lorenzova J, Necas A. Allogeneic and autogenous transplantations of MSCs in treatment of the physeal bone bridge in rabbits. BMC Biotechnol 2008; 8:70. [PMID: 18789143 PMCID: PMC2556323 DOI: 10.1186/1472-6750-8-70] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Accepted: 09/12/2008] [Indexed: 11/18/2022] Open
Abstract
Background The aim of this experimental study on New Zealand's white rabbits was to find differences in the results of treating the distal physeal femoral defect by the transplantation of autologous or allogeneic mesenchymal stem cells (MSCs). After the excision of a created bone bridge in the distal physis of the right femur, modified composite scaffold with MSCs was transplanted into the defect. In animal Group A (n = 11) autogenous MSCs were implanted; in animal Group B (n = 15) allogeneic MSCs were implanted. An iatrogenic physeal defect of the left femur of each animal not treated by MSCs transplantation served as control. The rabbits were euthanized four months after the transplantation. The treatment results were evaluated morphometrically (femoral length and valgus deformity measurement) and histologically (character and quality of the new cartilage). Results Four months after the transplantation, the right femurs of the animals in Group A were on average longer by 0.50 ± 0.04 cm (p = 0.018) than their left femurs, the right femurs of rabbits in Group B were on average longer by 0.43 ± 0.01 cm (p = 0.028) than their left femurs. 4 months after the therapeutic transplantation of MSCs valgus deformity of the distal part of the right femur of animals in Group A was significantly lower (by 4.45 ± 1.86°) than that of their left femur (p = 0.028), in Group B as well (by 3.66 ± 0.95° than that of their left femur p = 0.001). However, no significant difference was found between rabbits with transplanted autogenous MSCs (Group A) and rabbits with transplanted allogeneic MSCs (Group B) either in the femur length (p = 0.495), or in its valgus deformity (p = 0.1597). After the MSCs transplantation the presence of a newly formed hyaline cartilage was demonstrated histologically in all the animals (both groups). The ability of transplanted MSCs to survive in the damaged physis was demonstrated in vivo by magnetic resonance, in vitro by Perls reaction and immunofluorescence. Conclusion The transplantation of both autogenous and allogeneic MSCs into a defect of the growth plate appears as an effective method of surgical treatment of physeal cartilage injury. However, the Findings point to the conclusion that there is no clear difference in the final effect of the transplantation procedure used.
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Affiliation(s)
- Ladislav Planka
- Department of Pediatric Surgery, Orthopaedics and Traumatology, the Faculty Hospital Brno, Jihlavska 20, Brno, Czech Republic.
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Tejral G, Koláčná L, Schoner W, Amler E. The pi-helix formation between Asp369 and Thr375 as a key factor in E1-E2 conformational change of Na+/K+-ATPase. Physiol Res 2008; 58:583-589. [PMID: 18657006 DOI: 10.33549/physiolres.931469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Molecular modeling of the H4-H5-loop of the alpha2 isoform of Na+/K+-ATPase in the E1 and E2 conformations revealed that twisting of the nucleotide (N) domain toward the phosphorylation (P) domain is connected with the formation of a short pi-helix between Asp369 and Thr375. This conformational change close to the hinge region between the N-domain and the P-domain could be an important event leading to a bending of the N-domain by 64.7 degrees and to a shortening of the distance between the ATP binding site and the phosphorylation site (Asp369) by 1.22 nm from 3.22 nm to 2.00 nm. It is hypothesized that this shortening mechanism is involved in the Na+-dependent formation of the Asp369 phospho-intermediate as part of the overall Na+/K+-ATPase activity.
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Affiliation(s)
- G Tejral
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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Obsil T, Amler E, Obsilová V, Pavlícek Z. Effect of aminophospholipid glycation on order parameter and hydration of phospholipid bilayer. Biophys Chem 2007; 80:165-77. [PMID: 17030324 DOI: 10.1016/s0301-4622(99)00067-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/1998] [Revised: 05/06/1999] [Accepted: 05/07/1999] [Indexed: 10/17/2022]
Abstract
The effect of aminophospholipid glycation on lipid order and lipid bilayer hydration was investigated using time-resolved fluorescence spectroscopy. The changes of lipid bilayer hydration were estimated both from its effect on the fluorescence lifetime of The 1-[4-(trimethylammonium)-phenyl]-6-phenylhexa-1,3,5-triene (TMA-DPH) and 1,6-diphenylhexa-1,3,5-triene (DPH) and using solvatochromic shift studies with 1-anilinonaphthalene-8-sulfonic acid. The head-group and acyl chain order were determined from time-resolved fluorescence anisotropy measurements of the TMA-DPH and DPH. The suspensions of small unilamellar vesicles (with phosphatidylethanolamine/phosphatidylcholine molar ratio 1:2.33) were incubated with glyceraldehyde and it was found that aminophospholipids react with glyceraldehyde to form products with the absorbance and the fluorescence properties typical for protein advanced glycation end products. The lipid glycation was accompanied by the progressive oxidative modification of unsaturated fatty acid residues. It was found that aminophospholipid glycation increased the head-group hydration and lipid order in both regions of the membrane. The lipid oxidation accompanying the lipid glycation affected mainly the lipid order, while the effect on the lipid hydration was small. The increase in the lipid order was presumably the result of two effects: (1) the modification of head-groups of phosphatidylethanolamine by glycation; and (2) the degradation of unsaturated fatty acid residues by oxidation.
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Affiliation(s)
- T Obsil
- Department of Physical and Macromolecular Chemistry, Charles University, Albertov 2030, 12840 Prague 2, Czech Republic.
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Krupa P, Krsek P, Javorník M, Dostál O, Srnec R, Usvald D, Proks P, Kecová H, Amler E, Jancár J, Gál P, Plánka L, Necas A. Use of 3D geometry modeling of osteochondrosis-like iatrogenic lesions as a template for press-and-fit scaffold seeded with mesenchymal stem cells. Physiol Res 2007; 56 Suppl 1:S107-S114. [PMID: 17552888 DOI: 10.33549/physiolres.931308] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Computed tomography (CT) is an effective diagnostic modality for three-dimensional imaging of bone structures, including the geometry of their defects. The aim of the study was to create and optimize 3D geometrical and real plastic models of the distal femoral component of the knee with joint surface defects. Input data included CT images of stifle joints in twenty miniature pigs with iatrogenic osteochondrosis-like lesions in medial femoral condyle of the left knee. The animals were examined eight and sixteen weeks after surgery. Philips MX 8000 MX and View workstation were used for scanning parallel plane cross section slices and Cartesian discrete volume creation. On the average, 100 slices were performed in each stifle joint. Slice matrices size was 512 x 512 with slice thickness of 1 mm. Pixel (voxel) size in the slice plane was 0.5 mm (with average accuracy of +/-0.5 mm and typical volume size 512 x 512 x 100 voxels). Three-dimensional processing of CT data and 3D geometrical modelling, using interactive computer graphic system MediTools formerly developed here, consisted of tissue segmentation (raster based method combination and 5 % of manual correction), vectorization by the marching-cubes method, smoothing and decimation. Stifle- joint CT images of three individuals of different body size (small, medium and large) were selected to make the real plastic models of their distal femurs from plaster composite using rapid prototyping technology of Zcorporation. Accuracy of the modeling was +/- 0.5 mm. The real plastic models of distal femurs can be used as a template for developing custom made press and fit scaffold implants seeded with mesenchymal stem cells that might be subsequently implanted into iatrogenic joint surface defects for articular cartilage-repair enhancement.
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Affiliation(s)
- P Krupa
- Department of Medical Imaging Radiology, St Anne's University Hospital, Masaryk University, Brno, Czech Republic
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Kolácná L, Bakesová J, Varga F, Kostáková E, Plánka L, Necas A, Lukás D, Amler E, Pelouch V. Biochemical and biophysical aspects of collagen nanostructure in the extracellular matrix. Physiol Res 2007; 56 Suppl 1:S51-S60. [PMID: 17552894 DOI: 10.33549/physiolres.931302] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
ECM is composed of different collagenous and non-collagenous proteins. Collagen nanofibers play a dominant role in maintaining the biological and structural integrity of various tissues and organs, including bone, skin, tendon, blood vessels, and cartilage. Artificial collagen nanofibers are increasingly significant in numerous tissue engineering applications and seem to be ideal scaffolds for cell growth and proliferation. The modern tissue engineering task is to develop three-dimensional scaffolds of appropriate biological and biomechanical properties, at the same time mimicking the natural extracellular matrix and promoting tissue regeneration. Furthermore, it should be biodegradable, bioresorbable and non-inflammatory, should provide sufficient nutrient supply and have appropriate viscoelasticity and strength. Attributed to collagen features mentioned above, collagen fibers represent an obvious appropriate material for tissue engineering scaffolds. The aim of this minireview is, besides encapsulation of the basic biochemical and biophysical properties of collagen, to summarize the most promising modern methods and technologies for production of collagen nanofibers and scaffolds for artificial tissue development.
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Affiliation(s)
- L Kolácná
- Institute of Biophysics, Second Faculty of Medicine, Charles University, Prague, Czech Republic
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