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Colciago A, Mohamed T, Colleoni D, Melfi V, Magnaghi V. Electromagnetic field-induced adaptive response in Schwann cells through DNA methylation, histone deacetylation, and oxidative stress. J Cell Physiol 2024:e31365. [PMID: 38946084 DOI: 10.1002/jcp.31365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/14/2024] [Accepted: 06/19/2024] [Indexed: 07/02/2024]
Abstract
Schwannomas are benign tumors of the peripheral nervous system arising from the transformation of Schwann cells (SCs). On the whole, these tumors are related to alterations of the neurofibromin type 2 gene, coding for the oncosuppressor merlin, a cytoskeleton-associated protein belonging to the ezrin-radixin-moesin family. However, the underlying mechanisms of schwannoma onset and progression are not fully elucidated, whereas one of the challenges might be the environment. In this light, the exposure to electromagnetic field (EMF), generated by the use of common electrical devices, has been defiantly suggested as the cause of SCs transformation even if the evidence was mostly epidemiologic. Indeed, insubstantial mechanisms have been so far identified to explain SCs oncotransformation. Recently, some in vitro evidence pointed out alterations in proliferation and migration abilities in SCs exposed to EMF (0.1 T, 50 Hz, 10 min). Here, we used the same experimental paradigma to discuss the involvement of putative epigenetic mechanisms in SCs adaptation to EMF and to explain the occurrence of hypoxic alterations after the exposure. Our findings indicate a set of environmental-induced changes in SCs, toward a less-physiological state, which may be pathologically relevant for the SCs differentiation and the schwannoma development.
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Affiliation(s)
- Alessandra Colciago
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Tasnim Mohamed
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Deborah Colleoni
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Valentina Melfi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Valerio Magnaghi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
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Mohamed T, Colciago A, Montagnani Marelli M, Moretti RM, Magnaghi V. Protein kinase C epsilon activation regulates proliferation, migration, and epithelial to mesenchymal-like transition in rat Schwann cells. Front Cell Neurosci 2023; 17:1237479. [PMID: 37645595 PMCID: PMC10461112 DOI: 10.3389/fncel.2023.1237479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/21/2023] [Indexed: 08/31/2023] Open
Abstract
Introduction Protein kinase type C-ε (PKCε) plays an important role in the sensitization of primary afferent nociceptors, promoting mechanical hyperalgesia. In accordance, we showed that PKCε is present in sensory neurons of the peripheral nervous system (PNS), participating in the control of pain onset and chronification. Recently, it was found that PKCε is also implicated in the control of cell proliferation, promoting mitogenesis and metastatic invasion in some types of cancer. However, its role in the main glial cell of the PNS, the Schwann cells (SCs), was still not investigated. Methods Rat primary SCs culture were treated with different pharmacologic approaches, including the PKCε agonist dicyclopropyl-linoleic acid (DCP-LA) 500 nM, the human recombinant brain derived neurotrophic factor (BDNF) 1 nM and the TrkB receptor antagonist cyclotraxin B 10 nM. The proliferation (by cell count), the migration (by scratch test and Boyden assay) as well as some markers of SCs differentiation and epithelial-mesenchymal transition (EMT) process (by qRT-PCR and western blot) were analyzed. Results Overall, we found that PKCε is constitutively expressed in SCs, where it is likely involved in the switch from the proliferative toward the differentiated state. Indeed, we demonstrated that PKCε activation regulates SCs proliferation, increases their migration, and the expression of some markers (e.g., glycoprotein P0 and the transcription factor Krox20) of SCs differentiation. Through an autocrine mechanism, BDNF activates TrkB receptor, and controls SCs proliferation via PKCε. Importantly, PKCε activation likely promoted a partial EMT process in SCs. Discussion PKCε mediates relevant actions in the neuronal and glial compartment of the PNS. In particular, we posit a novel function for PKCε in the transformation of SCs, assuming a role in the mechanisms controlling SCs' fate and plasticity.
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Affiliation(s)
| | | | | | | | - Valerio Magnaghi
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Milan, Italy
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Maggi F, Manfredi A, Carosio F, Maddalena L, Alongi J, Ferruti P, Ranucci E. Toughening Polyamidoamine Hydrogels through Covalent Grafting of Short Silk Fibers. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227808. [PMID: 36431909 PMCID: PMC9696315 DOI: 10.3390/molecules27227808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Linear amphoteric polyamidoamines (PAAs) are usually water-soluble, biodegradable and biocompatible. Crosslinked PAAs form in water hydrogels, retaining most of the favorable properties of their linear counterparts. The hydrogels prepared by the radical post-polymerization of the oligo-α,ω-bisacrylamido-terminated PAA called AGMA1, obtained by the polyaddition of 4-aminobutylguanidine (agmatine) with 2,2-bis(acrylamido)acetic acid, exhibit excellent cell-adhesion properties both in vitro and in vivo. However, due to their low mechanical strength, AGMA1 hydrogels cannot be sewn to biological tissues and need to be reinforced with fibrous materials. In this work, short silk fibers gave excellent results in this sense, proving capable of establishing covalent bonds with the PAA matrix, thanks to their lysine content, which provided amino groups capable of reacting with the terminal acrylamide groups of the AGMA1 precursor in the final crosslinking phase. Morphological analyses demonstrated that the AGMA1 matrix was intimately interconnected and adherent to the silk fibers, with neither visible holes nor empty volumes. The silk/H-AGMA1 composites were still reversibly swellable in water. In the swollen state, they could be sewn and showed no detachment between fibers and matrix and exhibited significantly improved mechanical properties compared with the plain hydrogels, particularly as regards their Young's modulus and elongation at break.
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Affiliation(s)
- Filippo Maggi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milano, Italy
| | - Amedea Manfredi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milano, Italy
| | - Federico Carosio
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Alessandria Campus, Viale Teresa Michel 5, 15121 Alessandria, Italy
| | - Lorenza Maddalena
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Alessandria Campus, Viale Teresa Michel 5, 15121 Alessandria, Italy
| | - Jenny Alongi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milano, Italy
| | - Paolo Ferruti
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milano, Italy
| | - Elisabetta Ranucci
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milano, Italy
- Correspondence: ; Tel.: +39-0250314132
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Mauro N, Giammona G, Ranucci E, Ferruti P. Synthesis of Biocompatible and Biodegradable Polyamidoamines Microgels via a Simple and Reliable Statistical Approach. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7280. [PMID: 36295345 PMCID: PMC9611214 DOI: 10.3390/ma15207280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/06/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
Polyamidoamines (PAAs) are biocompatible and biodegradable polymers with a huge potential as biomaterials for pharmaceutical applications. They are obtained by the step-wise aza-Michael polyaddition of bifunctional or multifunctional amines with bisacrylamides in water. To the best of our knowledge, no synthetic protocols leading to hyperbranched PAAs as well as PAA microgels have been published so far. To fill this gap, a statistical approach was established in this work to fine-tune the aza-Michael polyaddition stoichiometry when a multifunctional co-monomer (bf) is added to a mixture of bifunctional monomers with complementary functions (a2 + b2), possibly even in presence of a monofunctional co-monomer (b1), for obtaining either microgels or hyperbranched polymers by a one-pot reaction. For this purpose, two new equations, obtained by reworking the classic Flory-Stockmayer equations, were successfully applied to the synthesis of different model systems, obtaining biocompatible microgels with tunable size distribution (200-500 nm) and properly designed end-chains in a simple and straightforward way. The same mathematical approach allowed us to empirically evaluate the actual number of active reactive functions of the co-monomers. A number of selected systems, being evaluated for their cytotoxicity in vitro, proved highly cytocompatible and, therefore, endowed with great potential for pharmaceutical and medical applications.
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Affiliation(s)
- Nicolò Mauro
- Laboratory of Biocompatible Polymers, Department of “Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche” (STEBICEF), University of Palermo, 90123 Palermo, Italy
| | - Gaetano Giammona
- Laboratory of Biocompatible Polymers, Department of “Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche” (STEBICEF), University of Palermo, 90123 Palermo, Italy
| | - Elisabetta Ranucci
- Dipartimento di Chimica, Università degli Studi di Milano, 20133 Milano, Italy
| | - Paolo Ferruti
- Dipartimento di Chimica, Università degli Studi di Milano, 20133 Milano, Italy
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Sang S, Cheng R, Cao Y, Yan Y, Shen Z, Zhao Y, Han Y. Biocompatible chitosan/polyethylene glycol/multi-walled carbon nanotube composite scaffolds for neural tissue engineering. J Zhejiang Univ Sci B 2022; 23:58-73. [PMID: 35029088 PMCID: PMC8758934 DOI: 10.1631/jzus.b2100155] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 06/03/2021] [Indexed: 12/26/2022]
Abstract
Carbon nanotube (CNT) composite materials are very attractive for use in neural tissue engineering and biosensor coatings. CNT scaffolds are excellent mimics of extracellular matrix due to their hydrophilicity, viscosity, and biocompatibility. CNTs can also impart conductivity to other insulating materials, improve mechanical stability, guide neuronal cell behavior, and trigger axon regeneration. The performance of chitosan (CS)/polyethylene glycol (PEG) composite scaffolds could be optimized by introducing multi-walled CNTs (MWCNTs). CS/PEG/CNT composite scaffolds with CNT content of 1%, 3%, and 5% (1%=0.01 g/mL) were prepared by freeze-drying. Their physical and chemical properties and biocompatibility were evaluated. Scanning electron microscopy (SEM) showed that the composite scaffolds had a highly connected porous structure. Transmission electron microscope (TEM) and Raman spectroscopy proved that the CNTs were well dispersed in the CS/PEG matrix and combined with the CS/PEG nanofiber bundles. MWCNTs enhanced the elastic modulus of the scaffold. The porosity of the scaffolds ranged from 83% to 96%. They reached a stable water swelling state within 24 h, and swelling decreased with increasing MWCNT concentration. The electrical conductivity and cell adhesion rate of the scaffolds increased with increasing MWCNT content. Immunofluorescence showed that rat pheochromocytoma (PC12) cells grown in the scaffolds had characteristics similar to nerve cells. We measured changes in the expression of nerve cell markers by quantitative real-time polymerase chain reaction (qRT-PCR), and found that PC12 cells cultured in the scaffolds expressed growth-associated protein 43 (GAP43), nerve growth factor receptor (NGFR), and class III β-tubulin (TUBB3) proteins. Preliminary research showed that the prepared CS/PEG/CNT scaffold has good biocompatibility and can be further applied to neural tissue engineering research.
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Affiliation(s)
- Shengbo Sang
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China.
- Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Rong Cheng
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
- Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yanyan Cao
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
- Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
- College of Information Science and Engineering, Hebei North University, Zhangjiakou 075000, China
| | - Yayun Yan
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
- Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Zhizhong Shen
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
- Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
- Shanxi Six-Dimensional Artificial Intelligence Biomedical Research Institute, Taiyuan 030031, China
| | - Yajing Zhao
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
- Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yanqing Han
- Department of Neurology, Shanxi Provincial Cardiovascular Hospital, Taiyuan 030024, China
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Schwann Cell Autocrine and Paracrine Regulatory Mechanisms, Mediated by Allopregnanolone and BDNF, Modulate PKCε in Peripheral Sensory Neurons. Cells 2020; 9:cells9081874. [PMID: 32796542 PMCID: PMC7465687 DOI: 10.3390/cells9081874] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/29/2020] [Accepted: 08/04/2020] [Indexed: 02/06/2023] Open
Abstract
Protein kinase type C-ε (PKCε) plays important roles in the sensitization of primary afferent nociceptors, such as ion channel phosphorylation, that in turn promotes mechanical hyperalgesia and pain chronification. In these neurons, PKCε is modulated through the local release of mediators by the surrounding Schwann cells (SCs). The progesterone metabolite allopregnanolone (ALLO) is endogenously synthesized by SCs, whereas it has proven to be a crucial mediator of neuron-glia interaction in peripheral nerve fibers. Biomolecular and pharmacological studies on rat primary SCs and dorsal root ganglia (DRG) neuronal cultures were aimed at investigating the hypothesis that ALLO modulates neuronal PKCε, playing a role in peripheral nociception. We found that SCs tonically release ALLO, which, in turn, autocrinally upregulated the synthesis of the growth factor brain-derived neurotrophic factor (BDNF). Subsequently, glial BDNF paracrinally activates PKCε via trkB in DRG sensory neurons. Herein, we report a novel mechanism of SCs-neuron cross-talk in the peripheral nervous system, highlighting a key role of ALLO and BDNF in nociceptor sensitization. These findings emphasize promising targets for inhibiting the development and chronification of neuropathic pain.
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Bloise N, Massironi A, Della Pina C, Alongi J, Siciliani S, Manfredi A, Biggiogera M, Rossi M, Ferruti P, Ranucci E, Visai L. Extra-Small Gold Nanospheres Decorated With a Thiol Functionalized Biodegradable and Biocompatible Linear Polyamidoamine as Nanovectors of Anticancer Molecules. Front Bioeng Biotechnol 2020; 8:132. [PMID: 32195232 PMCID: PMC7065572 DOI: 10.3389/fbioe.2020.00132] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/10/2020] [Indexed: 12/29/2022] Open
Abstract
Gold nanoparticles are elective candidate for cancer therapy. Current efforts are devoted to developing innovative methods for their synthesis. Besides, understanding their interaction with cells have become increasingly important for their clinical application. This work aims to describe a simple approach for the synthesis of extra-small gold nanoparticles for breast cancer therapy. In brief, a biocompatible and biodegradable polyamidoamine (named AGMA1-SH), bearing 20%, on a molar basis, thiol-functionalized repeat units, is employed to stabilize and coat extra-small gold nanospheres of different sizes (2.5, 3.5, and 5 nm in gold core), and to generate a nanoplatform for the link with Trastuzumab monoclonal antibody for HER2-positive breast cancer targeting. Dynamic light scattering, transmission electron microscopy, ultraviolet visible spectroscopy, X-ray powder diffraction, circular dichroism, protein quantification assays are used for the characterization. The targeting properties of the nanosystems are explored to achieve enhanced and selective uptake of AGMA1-SH-gold nanoparticles by in vitro studies against HER-2 overexpressing cells, SKBR-3 and compared to HER-2 low expressing cells, MCF-7, and normal fibroblast cell line, NIH-3T3. In vitro physicochemical characterization demonstrates that gold nanoparticles modified with AGMA1-SH are more stable in aqueous solution than the unmodified ones. Additionally, the greater gold nanoparticles size (5-nm) is associated with a higher stability and conjugation efficiency with Trastuzumab, which retains its folding and anticancer activity after the conjugation. In particular, the larger Trastuzumab functionalized nanoparticles displays the highest efficacy (via the pro-apoptotic protein increase, anti-apoptotic components decrease, survival-proliferation pathways downregulation) and internalization (via the activation of the classical clathrin-mediated endocytosis) in HER-2 overexpressing SKBR-3 cells, without eliciting significant effects on the other cell lines. The use of biocompatible AGMA1-SH for producing covalently stabilized gold nanoparticles to achieve selective targeting, cytotoxicity and uptake is completely novel, offering an important advancement for developing new anticancer conjugated-gold nanoparticles.
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Affiliation(s)
- Nora Bloise
- Department of Molecular Medicine (DMM), Biochemistry Unit, Center for Health Technologies (CHT), UdR INSTM University of Pavia, Pavia, Italy.,Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri S.p.A, IRCCS, Pavia, Italy
| | - Alessio Massironi
- Department of Chemistry and Industrial Chemistry, University of Pisa, UdR INSTM PISA, Pisa, Italy
| | - Cristina Della Pina
- Dipartimento di Chimica, Università degli Studi di Milano e CNR-ISTM, Milan, Italy
| | - Jenny Alongi
- Dipartimento di Chimica, Università degli Studi di Milano, Milan, Italy
| | - Stella Siciliani
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Amedea Manfredi
- Dipartimento di Chimica, Università degli Studi di Milano, Milan, Italy
| | - Marco Biggiogera
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Michele Rossi
- Dipartimento di Chimica, Università degli Studi di Milano e CNR-ISTM, Milan, Italy
| | - Paolo Ferruti
- Dipartimento di Chimica, Università degli Studi di Milano, Milan, Italy
| | | | - Livia Visai
- Department of Molecular Medicine (DMM), Biochemistry Unit, Center for Health Technologies (CHT), UdR INSTM University of Pavia, Pavia, Italy.,Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri S.p.A, IRCCS, Pavia, Italy
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Near-Infrared, Light-Triggered, On-Demand Anti-inflammatories and Antibiotics Release by Graphene Oxide/Elecrospun PCL Patch for Wound Healing. C — JOURNAL OF CARBON RESEARCH 2019. [DOI: 10.3390/c5040063] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Very recently, significant attention has been focused on the adsorption and cell adhesion properties of graphene oxide (GO), because it is expected to allow high drug loading and controlled drug release, as well as the promotion of cell adhesion and proliferation. This is particularly interesting in the promotion of wound healing, where antibiotics and anti-inflammatories should be locally released for a prolonged time to allow fibroblast proliferation. Here, we designed an implantable patch consisting of poly(caprolactone) electrospun covered with GO, henceforth named GO–PCL, endowed with high ibuprofen (5.85 mg cm−2), ketoprofen (0.86 mg cm−2), and vancomycin (0.95 mg cm−2) loading, used as anti-inflammatory and antibiotic models respectively, and capable of responding to near infrared (NIR)-light stimuli in order to promptly release the payload on-demand beyond three days. Furthermore, we demonstrated the GO is able to promote fibroblast adhesion, a key characteristic to potentially provide wound healing in vivo.
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Ranucci E, Manfredi A. Polyamidoamines: Versatile Bioactive Polymers with Potential for Biotechnological Applications. CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s42250-019-00046-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Manfredi A, Carosio F, Ferruti P, Alongi J, Ranucci E. Disulfide-containing polyamidoamines with remarkable flame retardant activity for cotton fabrics. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.07.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Gennari CG, Cilurzo F, Mitro N, Caruso D, Minghetti P, Magnaghi V. In vitro and in vivo evaluation of silk fibroin functionalized with GABA and allopregnanolone for Schwann cell and neuron survival. Regen Med 2017; 13:141-157. [PMID: 29160149 DOI: 10.2217/rme-2017-0102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM This in vitro and in vivo study reports on silk fibroin (SF) scaffold, functionalized for in situ delivery of GABA and/or allopregnanolone (ALLO), as biomaterial for potential application in tissue engineering and nerve regeneration. MATERIALS & METHODS We evaluated the feasibility to design 2D scaffolds (films) made of regenerated Bombyx mori SF, functionalized with GABA and/or ALLO to enhance in vitro biological functions, health, survival and growth of Schwann cells and sensitive neurons of the dorsal root ganglia. RESULTS & CONCLUSION Our 2D-SF film showed an efficient loading and controllable release of drugs promoting nerve regeneration. SF functionalized film may be helpful for the development of bioengineered conduits and, in principle, have great potential for long-gap nerve injury repair.
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Affiliation(s)
- Chiara Gm Gennari
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Milan, Italy
| | - Francesco Cilurzo
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Milan, Italy
| | - Nico Mitro
- Department of Pharmacological & Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Donatella Caruso
- Department of Pharmacological & Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Paola Minghetti
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Milan, Italy
| | - Valerio Magnaghi
- Department of Pharmacological & Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
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Biocompatible chitin/carbon nanotubes composite hydrogels as neuronal growth substrates. Carbohydr Polym 2017; 174:830-840. [PMID: 28821138 DOI: 10.1016/j.carbpol.2017.06.101] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/28/2017] [Accepted: 06/26/2017] [Indexed: 12/20/2022]
Abstract
In the past decades, extensive studies have demonstrated that carbon nanotubes (CNTs) could promote cell adhesion, proliferation and differentiation of neuronal cells. However, the potential cytotoxicity in biological systems severely restricted the utilization of CNTs as substrates for neural growth. In this study, biocompatible chitin/carbon nanotubes (Ch/CNT) composite hydrogels were developed via blending modified CNTs with chitin solution in 11wt% NaOH/4wt% urea aqueous system, and subsequently regenerating in ethanol. As the CNTs were dispersed homogeneously in chitin matrix and combined with chitin nanofibers to form a compact and neat Ch/CNT nanofibrous network through intermolecular interactions, such as electrostatic interactions, hydrogen bonding and amphiphilic interaction, etc. The tensile strength and elongation at break of the Ch/CNT composite hydrogels were obviously enhanced, and the swelling ratio decreased. In addition, the Ch/CNT hydrogels exhibited good hemocompatibility, biodegradation in vitro and biocompatibility without cytotoxicity and neurotoxicity nature to neuronal and Schwann cells (PC12 cells and RSC96 cells). Especially, the Ch/CNT3 composite hydrogels exhibited significant enhancement of the neuronal cell adhesion, proliferation and neurite outgrowth of neuronal cells with a great increase in both the percentage and the length of neurites. Therefore, we provide a simple and efficient approach to construct the novel Ch/CNT hydrogels as neuronal growth substrates for the potential application in nerve regeneration.
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Mauro N, Scialabba C, Pitarresi G, Giammona G. Enhanced adhesion and in situ photothermal ablation of cancer cells in surface-functionalized electrospun microfiber scaffold with graphene oxide. Int J Pharm 2017; 526:167-177. [PMID: 28442269 DOI: 10.1016/j.ijpharm.2017.04.045] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/13/2017] [Accepted: 04/18/2017] [Indexed: 01/01/2023]
Abstract
The physicochemical characteristics of a biomaterial surface highly affect the interaction with living cells. Recently, much attention has been focused on the adhesion properties of functional biomaterials toward cancer cells, since is expected to control metastatic spread of a tumor, which is related to good probability containing the progression of disease burden. Here, we designed an implantable poly(caprolactone)-based electrospun microfiber scaffold, henceforth PCLMF-GO, to simultaneously capture and kill cancer cells by tuning physicochemical features of the hybrid surface through nitrogen plasma activation and hetero-phase graphene oxide (GO) covalent functionalization. The surface immobilization of GO implies enhanced cell adhesion and proliferation, promoting the selective adhesion of cancer cells, even if allowing cancer associated fibroblast (CAFs) capture. We also display that the functionalization with GO, thanks to the high near-infrared (NIR) absorbance, enables the discrete photothermal eradication of the captured cancer cells in situ (≈98%).
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Affiliation(s)
- Nicolò Mauro
- Laboratory of Biocompatible Polymers, Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF), University of Palermo, Via Archirafi, 32, 90123 Palermo, Italy.
| | - Cinzia Scialabba
- Laboratory of Biocompatible Polymers, Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF), University of Palermo, Via Archirafi, 32, 90123 Palermo, Italy
| | - Giovanna Pitarresi
- Laboratory of Biocompatible Polymers, Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF), University of Palermo, Via Archirafi, 32, 90123 Palermo, Italy
| | - Gaetano Giammona
- Laboratory of Biocompatible Polymers, Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF), University of Palermo, Via Archirafi, 32, 90123 Palermo, Italy; Mediterranean Center for Human Advanced Biotechnologies (Med-Chab), Viale delle Scienze Ed. 18, 90128 Palermo, Italy
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Melfi S, Montt Guevara MM, Bonalume V, Ruscica M, Colciago A, Simoncini T, Magnaghi V. Src and phospho-FAK kinases are activated by allopregnanolone promoting Schwann cell motility, morphology and myelination. J Neurochem 2017; 141:165-178. [PMID: 28072455 DOI: 10.1111/jnc.13951] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/19/2016] [Accepted: 12/30/2016] [Indexed: 01/11/2023]
Abstract
Schwann cells' (SCs) development and maturation require coordinate and complementary activation of several signals and intracellular pathways. Among factors controlling these processes, the signalling intermediates Src tyrosine kinase and focal adhesion kinase (FAK) are relevant for SCs', participating in regulation of their adhesion, motility and migration. Recently, the progesterone metabolite allopregnanolone (ALLO) was proved to be synthesized by SCs, whereas it acts autocrinally on SCs motility and proliferation, which are crucial processes for nerve development, maturation and regeneration. Herein, we investigate the hypothesis that the molecular mechanisms behind the ALLO's action on SCs involve the signalling intermediates Src and FAK. We first demonstrated that ALLO 10-6 M regulates SCs morphology, motility and myelination, also increasing the internode distance in the in vitro myelination model of neuron/SCs co-culture. ALLO's actions were mediated by the modulation of Src/FAK pathway, since they were counteracted by PP2 10-5 M, a selective inhibitor of Src kinase. Then, we proved that Src/FAK activation in SCs involves GABA-A dependent mechanisms and actin re-arrangements. In conclusion, our findings are the first to corroborate the importance of the neuroactive steroid ALLO in regulating SCs development and maturation via the Src and phospho-FAK signalling activation. Cover Image for this issue: doi: 10.1111/jnc.13795.
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Affiliation(s)
- Simona Melfi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | | | - Veronica Bonalume
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Massimiliano Ruscica
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Alessandra Colciago
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Tommaso Simoncini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Valerio Magnaghi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
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15
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Limongi T, Tirinato L, Pagliari F, Giugni A, Allione M, Perozziello G, Candeloro P, Di Fabrizio E. Fabrication and Applications of Micro/Nanostructured Devices for Tissue Engineering. NANO-MICRO LETTERS 2017; 9:1. [PMID: 30460298 PMCID: PMC6223775 DOI: 10.1007/s40820-016-0103-7] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/28/2016] [Indexed: 05/17/2023]
Abstract
Nanotechnology allows the realization of new materials and devices with basic structural unit in the range of 1-100 nm and characterized by gaining control at the atomic, molecular, and supramolecular level. Reducing the dimensions of a material into the nanoscale range usually results in the change of its physiochemical properties such as reactivity, crystallinity, and solubility. This review treats the convergence of last research news at the interface of nanostructured biomaterials and tissue engineering for emerging biomedical technologies such as scaffolding and tissue regeneration. The present review is organized into three main sections. The introduction concerns an overview of the increasing utility of nanostructured materials in the field of tissue engineering. It elucidates how nanotechnology, by working in the submicron length scale, assures the realization of a biocompatible interface that is able to reproduce the physiological cell-matrix interaction. The second, more technical section, concerns the design and fabrication of biocompatible surface characterized by micro- and submicroscale features, using microfabrication, nanolithography, and miscellaneous nanolithographic techniques. In the last part, we review the ongoing tissue engineering application of nanostructured materials and scaffolds in different fields such as neurology, cardiology, orthopedics, and skin tissue regeneration.
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Affiliation(s)
- Tania Limongi
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Luca Tirinato
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Francesca Pagliari
- Department of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Andrea Giugni
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Marco Allione
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Gerardo Perozziello
- Laboratory of Nanotechnology BioNEM, Department of Experimental and Clinical Medicine, University “Magna Graecia” of Catanzaro, Viale Europa - Loc. Germaneto, 88100 Catanzaro, Italy
| | - Patrizio Candeloro
- Laboratory of Nanotechnology BioNEM, Department of Experimental and Clinical Medicine, University “Magna Graecia” of Catanzaro, Viale Europa - Loc. Germaneto, 88100 Catanzaro, Italy
| | - Enzo Di Fabrizio
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
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16
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Urbán P, Ranucci E, Fernàndez-Busquets X. Polyamidoamine nanoparticles as nanocarriers for the drug delivery to malaria parasite stages in the mosquito vector. Nanomedicine (Lond) 2016; 10:3401-14. [PMID: 26582279 DOI: 10.2217/nnm.15.174] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Malaria is arguably one of the main medical concerns worldwide because of the numbers of people affected, the severity of the disease and the complexity of the life cycle of its causative agent, the protist Plasmodium spp. With the advent of nanoscience, renewed hopes have appeared of finally obtaining the long sought-after magic bullet against malaria in the form of a nanovector for the targeted delivery of antimalarial compounds exclusively to Plasmodium-infected cells, thus increasing drug efficacy and minimizing the induction of resistance to newly developed therapeutic agents. Polyamidoamine-derived nanovectors combine into a single chemical structure drug encapsulating capacity, antimalarial activity, low unspecific toxicity, specific targeting to Plasmodium, optimal in vivo activity and affordable synthesis cost. After having shown their efficacy in targeting drugs to intraerythrocytic parasites, now polyamidoamines face the challenge of spearheading a new generation of nanocarriers aiming at the malaria parasite stages in the mosquito vector.
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Affiliation(s)
- Patricia Urbán
- European Commission, Joint Research Centre, Institute for Health & Consumer Protection, via E. Fermi 2749, IT-21027, Ispra, Varese, Italy
| | - Elisabetta Ranucci
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, IT-20133 Milano, Italy
| | - Xavier Fernàndez-Busquets
- Nanomalaria Group, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 10-12, ES-08028 Barcelona, Spain.,Barcelona Institute for Global Health (ISGlobal), Barcelona Center for International Health Research (CRESIB, Hospital Clínic-Universitat de Barcelona), Rosselló 149-153, ES-08036 Barcelona, Spain.,Nanoscience & Nanotechnology Institute (IN2UB), University of Barcelona, Martí i Franquès 1, ES-08028 Barcelona, Spain
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17
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Gualandi C, Bloise N, Mauro N, Ferruti P, Manfredi A, Sampaolesi M, Liguori A, Laurita R, Gherardi M, Colombo V, Visai L, Focarete ML, Ranucci E. Poly-l-Lactic Acid Nanofiber-Polyamidoamine Hydrogel Composites: Preparation, Properties, and Preliminary Evaluation as Scaffolds for Human Pluripotent Stem Cell Culturing. Macromol Biosci 2016; 16:1533-1544. [PMID: 27282336 DOI: 10.1002/mabi.201600061] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/17/2016] [Indexed: 11/08/2022]
Abstract
Electrospun poly-l-lactic acid (PLLA) nanofiber mats carrying surface amine groups, previously introduced by nitrogen atmospheric pressure nonequilibrium plasma, are embedded into aqueous solutions of oligomeric acrylamide-end capped AGMA1, a biocompatible polyamidoamine with arg-gly-asp (RGD)-reminiscent repeating units. The resultant mixture is finally cured giving PLLA-AGMA1 hydrogel composites that absorb large amounts of water and, in the swollen state, are translucent, soft, and pliable, yet as strong as the parent PLLA mat. They do not split apart from each other when swollen in water and remain highly flexible and resistant, since the hydrogel portion is covalently grafted onto the PLLA nanofibers via the addition reaction of the surface amine groups to a part of the terminal acrylic double bonds of AGMA1 oligomers. Preliminary tested as scaffolds, the composites prove capable of maintaining short-term undifferentiated cultures of human pluripotent stem cells in feeder-free conditions.
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Affiliation(s)
- Chiara Gualandi
- Department of Chemistry ''G. Ciamician'' and INSTM UdR of Bologna, University of Bologna, 40126 Bologna, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Center for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy
| | - Nicolò Mauro
- Dipartimento di Chimica, Università degli Studi di Milano and INSTM - UdR Milano, 20133 Milano, Italy.,Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, University of Palermo, 90128, Palermo, Italy
| | - Paolo Ferruti
- Dipartimento di Chimica, Università degli Studi di Milano and INSTM - UdR Milano, 20133 Milano, Italy
| | - Amedea Manfredi
- Dipartimento di Chimica, Università degli Studi di Milano and INSTM - UdR Milano, 20133 Milano, Italy
| | - Maurilio Sampaolesi
- Interuniversity Institute of Myology and Department of Public Health, Experimental and Forensic Medicine, Division of Human Anatomy, University of Pavia, 27100, Pavia, Italy.,Translational Cardiomyology Laboratory, Department of Development and Regeneration, KUL University of Leuven, 3000, Leuven, Belgium
| | - Anna Liguori
- Department of Industrial Engineering (DIN) and Advanced Mechanics and Materials - Interdepartmental Center, University of Bologna, 40131, Bologna, Italy
| | - Romolo Laurita
- Department of Industrial Engineering (DIN) and Advanced Mechanics and Materials - Interdepartmental Center, University of Bologna, 40131, Bologna, Italy
| | - Matteo Gherardi
- Department of Industrial Engineering (DIN) and Advanced Mechanics and Materials - Interdepartmental Center, University of Bologna, 40131, Bologna, Italy
| | - Vittorio Colombo
- Department of Industrial Engineering (DIN) and Advanced Mechanics and Materials - Interdepartmental Center, University of Bologna, 40131, Bologna, Italy
| | - Livia Visai
- Department of Molecular Medicine, Center for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy.,Laboratory of Nanotechnology, Department of Occupational Medicine, Toxicology and Environmental Risks, Salvatore Maugeri Foundation, IRCCS, Pavia, Italy
| | - Maria Letizia Focarete
- Department of Chemistry ''G. Ciamician'' and INSTM UdR of Bologna, University of Bologna, 40126 Bologna, Italy. .,Health Sciences and Technologies - Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna, 40064, Ozzano dell'Emilia, Italy.
| | - Elisabetta Ranucci
- Dipartimento di Chimica, Università degli Studi di Milano and INSTM - UdR Milano, 20133 Milano, Italy.
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18
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Mauro N, Chiellini F, Bartoli C, Gazzarri M, Laus M, Antonioli D, Griffiths P, Manfredi A, Ranucci E, Ferruti P. RGD-mimic polyamidoamine-montmorillonite composites with tunable stiffness as scaffolds for bone tissue-engineering applications. J Tissue Eng Regen Med 2016; 11:2164-2175. [DOI: 10.1002/term.2115] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 09/17/2015] [Accepted: 11/18/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Nicolò Mauro
- Dipartimento di Chimica; Università degli Studi di Milano; Italy
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, Laboratory of Biocompatible Polymers; Università Degli Studi di Palermo; Via Archirafi 32 90123 Palermo Italy
| | | | | | | | - Michele Laus
- Dipartimento di Scienze ed Innovazione Tecnologica; Università del Piemonte Orientale 'A. Avogadro'; Alessandria Italy
| | - Diego Antonioli
- Dipartimento di Scienze ed Innovazione Tecnologica; Università del Piemonte Orientale 'A. Avogadro'; Alessandria Italy
| | - Peter Griffiths
- Department of Pharmaceutical, Chemical and Environmental Sciences, Faculty of Engineering and Science; University of Greenwich, Medway Campus; Kent UK
| | - Amedea Manfredi
- Dipartimento di Chimica; Università degli Studi di Milano; Italy
| | | | - Paolo Ferruti
- Dipartimento di Chimica; Università degli Studi di Milano; Italy
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19
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Gerges I, Tamplenizza M, Rossi E, Tocchio A, Martello F, Recordati C, Kumar D, Forsyth NR, Liu Y, Lenardi C. A Tailor-Made Synthetic Polymer for Cell Encapsulation: Design Rationale, Synthesis, Chemical-Physics and Biological Characterizations. Macromol Biosci 2016; 16:870-81. [DOI: 10.1002/mabi.201500386] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/11/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Irini Gerges
- Fondazione Filarete per le Bioscienze e l'Innovazione; Viale Ortles 22/4 20139 Milan Italy
- Tensive s.r.l.; Via Timavo 34 20124 Milan Italy
| | - Margherita Tamplenizza
- Fondazione Filarete per le Bioscienze e l'Innovazione; Viale Ortles 22/4 20139 Milan Italy
- Tensive s.r.l.; Via Timavo 34 20124 Milan Italy
| | - Eleonora Rossi
- SEMM; European School of Molecular Medicine; Campus IFOM-IEO, Via Adamello 16 20139 Milano Italy
| | - Alessandro Tocchio
- SEMM; European School of Molecular Medicine; Campus IFOM-IEO, Via Adamello 16 20139 Milano Italy
| | - Federico Martello
- Fondazione Filarete per le Bioscienze e l'Innovazione; Viale Ortles 22/4 20139 Milan Italy
- Tensive s.r.l.; Via Timavo 34 20124 Milan Italy
| | - Camilla Recordati
- Fondazione Filarete per le Bioscienze e l'Innovazione; Viale Ortles 22/4 20139 Milan Italy
| | - Deepak Kumar
- Materials Science Centre; University of Manchester; Grosvenor Street Manchester M17HS Greater Manchester UK
| | - Nicholas R. Forsyth
- Guy Hilton Research Centre; Institute of Science and Technology in Medicine; University of Keele; Thornburrow Drive Stoke-on-Trent ST47QB Staffordshire UK
| | - Yang Liu
- Wolfson School of Mechanical and Manufacturing Engineering; Loughborough University; Ashby Rd Loughborough LE11 3TU Leicestershire UK
| | - Cristina Lenardi
- Fondazione Filarete per le Bioscienze e l'Innovazione; Viale Ortles 22/4 20139 Milan Italy
- CIMAINA; Dipartimento di Fisica; Università degli Studi di Milano; Via Celoria 16 20133 Milano Italy
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20
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Tocchio A, Martello F, Tamplenizza M, Rossi E, Gerges I, Milani P, Lenardi C. RGD-mimetic poly(amidoamine) hydrogel for the fabrication of complex cell-laden micro constructs. Acta Biomater 2015; 18:144-54. [PMID: 25724444 DOI: 10.1016/j.actbio.2015.02.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 02/15/2015] [Accepted: 02/18/2015] [Indexed: 12/12/2022]
Abstract
The potential of the 3D cell culture approach for creating in vitro models for drug screening and cellular studies, has led to the development of hydrogels that are able to mimic the in vivo 3D cellular milieu. To this aim, synthetic polymer-based hydrogels, with which it is possible to fine-tune the chemical and biophysical properties of the cell microenvironment, are becoming more and more acclaimed. Of all synthetic materials, poly(amidoamine)s (PAAs) hydrogels are known to have promising properties. In particular, PAAs hydrogels containing the 2,2-bisacrylamidoacetic acid-agmatine monomeric unit are capable of enhancing cellular adhesion by interacting with the RGD-binding αVβ3 integrin. The synthesis of a new photocrosslinkable, biomimetic PAA-Jeffamine®-PAA triblock copolymer (PJP) hydrogel is reported in this paper with the aim of improving the optical, biocompatibility and cell-adhesion properties of previously studied PAA hydrogels and providing an inexpensive alternative to the RGD peptide based hydrogels. The physicochemical properties of PJP hydrogels are extensively discussed and the behavior of 2D and 3D cell cultures was analyzed in depth with different cell types. Moreover, cell-laden PJP hydrogels were patterned with perfusable microchannels and seeded with endothelial cells, in order to investigate the possibility of using PJP hydrogels for fabricating cell laden tissue-like micro constructs and microfluidic devices. Overall the data obtained suggest that PJP could ultimately become a useful tool for fabricating improved in vitro models in order to potentially enhance the effectiveness of drug screening and clinical treatments.
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Affiliation(s)
- Alessandro Tocchio
- SEMM, European School of Molecular Medicine, Campus IFOM-IEO, Via Adamello 16, 20139 Milano, Italy
| | | | | | - Eleonora Rossi
- SEMM, European School of Molecular Medicine, Campus IFOM-IEO, Via Adamello 16, 20139 Milano, Italy
| | - Irini Gerges
- Fondazione Filarete, Viale Ortles 22/4, 20139 Milano, Italy
| | - Paolo Milani
- Fondazione Filarete, Viale Ortles 22/4, 20139 Milano, Italy; CIMaINa, Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy
| | - Cristina Lenardi
- Fondazione Filarete, Viale Ortles 22/4, 20139 Milano, Italy; CIMaINa, Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy.
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21
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Franzoso F, Antonioli D, Montoneri E, Persico P, Tabasso S, Laus M, Mendichi R, Negre M, Vaca-Garcia C. Films made from poly(vinyl alcohol-co-ethylene) and soluble biopolymers isolated from postharvest tomato plant. J Appl Polym Sci 2015. [DOI: 10.1002/app.41935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Flavia Franzoso
- Dipartimento di Chimica; Università di Torino; 10125 Torino Italy
| | - Diego Antonioli
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT); Università degli Studi del Piemonte Orientale “A. Avogadro,” INSTM; UdR Alessandria 15121 Alessandria Italy
| | - Enzo Montoneri
- STAR Integrated Research Unit; Università di Foggia; 71121 Foggia Italy
| | - Paola Persico
- Istituto per lo Studio delle Macromolecole (ISMAC-CNR); 20133 Milano Italy
| | - Silvia Tabasso
- Dipartimento di Scienza e Tecnologia del Farmaco; Università di Torino; 10125 Torino Italy
| | - Michele Laus
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT); Università degli Studi del Piemonte Orientale “A. Avogadro,” INSTM; UdR Alessandria 15121 Alessandria Italy
| | - Raniero Mendichi
- Istituto per lo Studio delle Macromolecole (ISMAC-CNR); 20133 Milano Italy
| | - Michele Negre
- Dipartimento di Scienze Agrarie; Università di Torino, Forestali e Alimentari; 10095 Grugliasco (TO) Italy
| | - Carlos Vaca-Garcia
- National Polytechnic Institute of Toulouse; INP-ENSIACET Laboratory of Agro-Industrial Chemistry; 31030 Toulouse France
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22
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Franzoso F, Tabasso S, Antonioli D, Montoneri E, Persico P, Laus M, Mendichi R, Negre M. Films made from poly(vinyl alcohol-co-ethylene) and soluble biopolymers isolated from municipal biowaste. J Appl Polym Sci 2014. [DOI: 10.1002/app.41359] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Flavia Franzoso
- Dipartimento di Chimica; Universitá di Torino; Via P. Giuria 7 10125 Turin Italy
| | - Silvia Tabasso
- Dipartimento di Chimica; Universitá di Torino; Via P. Giuria 7 10125 Turin Italy
| | - Diego Antonioli
- Dipartimento di Scienze e Innovazione Tecnologica; Università degli Studi del Piemonte Orientale A. Avogadro; Italian Interuniversity Consortium for Materials Science and Technology (INSTM), Research Unit Alessandria, Viale T. Michel 11 15121 Alessandria Italy
| | - Enzo Montoneri
- STAR Integrated Research Unit; Università di Foggia; Via Gramsci 89-91 71121 Foggia Italy
| | - Paola Persico
- Istituto per lo Studio delle Macromolecole; Via E. Bassini 15 20133 Milan Italy
| | - Michele Laus
- Dipartimento di Scienze e Innovazione Tecnologica; Università degli Studi del Piemonte Orientale A. Avogadro; Italian Interuniversity Consortium for Materials Science and Technology (INSTM), Research Unit Alessandria, Viale T. Michel 11 15121 Alessandria Italy
| | - Raniero Mendichi
- Istituto per lo Studio delle Macromolecole; Via E. Bassini 15 20133 Milan Italy
| | - Michele Negre
- Dipartimento di Scienze Agrarie; Forestali e Alimentari, Università di Torino; Via L. da Vinci 44 10095 Turin Italy
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23
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Martello F, Tocchio A, Tamplenizza M, Gerges I, Pistis V, Recenti R, Bortolin M, Del Fabbro M, Argentiere S, Milani P, Lenardi C. Poly(amido-amine)-based hydrogels with tailored mechanical properties and degradation rates for tissue engineering. Acta Biomater 2014; 10:1206-15. [PMID: 24361426 DOI: 10.1016/j.actbio.2013.12.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 11/20/2013] [Accepted: 12/12/2013] [Indexed: 11/15/2022]
Abstract
Poly(amido-amine) (PAA) hydrogels containing the 2,2-bisacrylamidoacetic acid-4-amminobutyl guanidine monomeric unit have a known ability to enhance cellular adhesion by interacting with the arginin-glycin-aspartic acid (RGD)-binding αVβ3 integrin, expressed by a wide number of cell types. Scientific interest in this class of materials has traditionally been hampered by their poor mechanical properties and restricted range of degradation rate. Here we present the design of novel biocompatible, RGD-mimic PAA-based hydrogels with wide and tunable degradation rates as well as improved mechanical and biological properties for biomedical applications. This is achieved by radical polymerization of acrylamide-terminated PAA oligomers in both the presence and absence of 2-hydroxyethylmethacrylate. The degradation rate is found to be precisely tunable by adjusting the PAA oligomer molecular weight and acrylic co-monomer concentration in the starting reaction mixture. Cell adhesion and proliferation tests on Madin-Darby canine kidney epithelial cells show that PAA-based hydrogels have the capacity to promote cell adhesion up to 200% compared to the control. Mechanical tests show higher compressive strength of acrylic chain containing hydrogels compared to traditional PAA hydrogels.
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Affiliation(s)
| | - Alessandro Tocchio
- SEMM, European School of Molecular Medicine, Campus IFOM-IEO, Via Adamello 16, 20139 Milano, Italy
| | | | - Irini Gerges
- Fondazione Filarete, Viale Ortles 22/4, 20139 Milano, Italy
| | | | | | - Monica Bortolin
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche Università degli Studi di Milano, Via R. Galeazzi 4, 20161 Milano, Italy
| | - Massimo Del Fabbro
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche Università degli Studi di Milano, Via R. Galeazzi 4, 20161 Milano, Italy
| | | | - Paolo Milani
- Fondazione Filarete, Viale Ortles 22/4, 20139 Milano, Italy; CIMaINa, Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy
| | - Cristina Lenardi
- Fondazione Filarete, Viale Ortles 22/4, 20139 Milano, Italy; CIMaINa, Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy
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