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Wysokowski M, Machałowski T, Idaszek J, Chlanda A, Jaroszewicz J, Heljak M, Niemczak M, Piasecki A, Gajewska M, Ehrlich H, Święszkowski W, Jesionowski T. Deep eutectic solvent-assisted fabrication of bioinspired 3D carbon-calcium phosphate scaffolds for bone tissue engineering. RSC Adv 2023; 13:21971-21981. [PMID: 37483675 PMCID: PMC10358318 DOI: 10.1039/d3ra02356g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/09/2023] [Indexed: 07/25/2023] Open
Abstract
Tissue engineering is a burgeoning field focused on repairing damaged tissues through the combination of bodily cells with highly porous scaffold biomaterials, which serve as templates for tissue regeneration, thus facilitating the growth of new tissue. Carbon materials, constituting an emerging class of superior materials, are currently experiencing remarkable scientific and technological advancements. Consequently, the development of novel 3D carbon-based composite materials has become significant for biomedicine. There is an urgent need for the development of hybrids that will combine the unique bioactivity of ceramics with the performance of carbonaceous materials. Considering these requirements, herein, we propose a straightforward method of producing a 3D carbon-based scaffold that resembles the structural features of spongin, even on the nanometric level of their hierarchical organization. The modification of spongin with calcium phosphate was achieved in a deep eutectic solvent (choline chloride : urea, 1 : 2). The holistic characterization of the scaffolds confirms their remarkable structural features (i.e., porosity, connectivity), along with the biocompatibility of α-tricalcium phosphate (α-TCP), rendering them a promising candidate for stem cell-based tissue-engineering. Culturing human bone marrow mesenchymal stem cells (hMSC) on the surface of the biomimetic scaffold further verifies its growth-facilitating properties, promoting the differentiation of these cells in the osteogenesis direction. ALP activity was significantly higher in osteogenic medium compared to proliferation, indicating the differentiation of hMSC towards osteoblasts. However, no significant difference between C and C-αTCP in the same medium type was observed.
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Affiliation(s)
- Marcin Wysokowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
| | - Tomasz Machałowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
| | - Joanna Idaszek
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Adrian Chlanda
- Lukasiewicz Research Network - Institute of Microelectronics and Photonics, Flake Graphene Research Group 02-668 Warsaw Poland
| | - Jakub Jaroszewicz
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Marcin Heljak
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Michał Niemczak
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
| | - Adam Piasecki
- Institute of Materials Engineering, Poznan University of Technology Piotrowo 3 61138 Poznan Poland
| | - Marta Gajewska
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology Mickiewicza 30 30-059 Kraków Poland
| | - Hermann Ehrlich
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
- Center for Advanced Technologies, Adam Mickiewicz University Uniwersytetu Poznanskiego 10 61-614 Poznan Poland
| | - Wojciech Święszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
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Mariniello MD, Ghilli M, Favati B, Gerges I, Colizzi L, Tamplenizza M, Tocchio A, Martello F, Ghilardi M, Cossu MC, Danti S, Roncella M. Cell-free biomimetic polyurethane-based scaffold for breast reconstruction following non-malignant lesion resection. A first-in-human study. Breast Cancer 2023:10.1007/s12282-023-01446-5. [PMID: 36977972 DOI: 10.1007/s12282-023-01446-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/27/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND Based on the volume of tissue removed, conservative surgery (BCS) cannot always guarantee satisfactory cosmetic results, unless resorting to more complex oncoplastic approaches. Investigating an alternative to optimize aesthetic outcomes minimizing surgical complexity, was the purpose of this study. We assessed an innovative surgical procedure based on the use of a biomimetic polyurethane-based scaffold intended for regenerating soft-tissue resembling fat, in patients undergoing BCS for non-malignant breast lesions. Safety and performance of the scaffold, and safety and feasibility of the entire implant procedure were evaluated. METHODS A volunteer sample of 15 female patients underwent lumpectomy with immediate device positioning, performing seven study visits with six-month follow-up. We evaluated incidence of adverse events (AEs), changes in breast appearance (using photographs and anthropomorphic measurements), interference with ultrasound and MRI (assessed by two independent investigators), investigator's satisfaction (through a VAS scale), patient's pain (through a VAS scale) and quality of life (QoL) (using the BREAST-Q© questionnaire). Data reported are the results of the interim analysis on the first 5 patients. RESULTS No AEs were device related nor serious. Breast appearance was unaltered and the device did not interference with imaging. High investigator's satisfaction, minimal post-operative pain and positive impact on QoL were also detected. CONCLUSIONS Albeit on a limited number of patients, data showed positive outcomes both in terms of safety and performance, paving the way to an innovative breast reconstructive approach with a potential remarkable impact on clinical application of tissue engineering. TRIAL REGISTRATION ClinicalTrials.gov (NCT04131972, October 18, 2019).
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Affiliation(s)
| | - Matteo Ghilli
- Breast Cancer Center, University Hospital of Pisa, Via Roma 57, 56126, Pisa, Italy
| | - Benedetta Favati
- Breast Radiology, Breast Cancer Center, University Hospital of Pisa, Via Roma 57, 56126, Pisa, Italy
| | | | - Livio Colizzi
- Breast Cancer Center, University Hospital of Pisa, Via Roma 57, 56126, Pisa, Italy
| | | | | | | | - Maria Ghilardi
- Breast Cancer Center, University Hospital of Pisa, Via Roma 57, 56126, Pisa, Italy
| | - Maria Cristina Cossu
- Breast Radiology, Breast Cancer Center, University Hospital of Pisa, Via Roma 57, 56126, Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122, Pisa, Italy
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Manuela Roncella
- Breast Cancer Center, University Hospital of Pisa, Via Roma 57, 56126, Pisa, Italy
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Hicks MD, Ovaitt AK, Fleming JC, Sorace AG, Song PN, Mansur A, Hartman YE, Rosenthal EL, Warram JM, Thomas CM. Hyperintensity of integrin-targeted fluorescence agent IntegriSense750 accurately predicts flap necrosis compared to Indocyanine green. Head Neck 2022; 44:134-142. [PMID: 34697855 PMCID: PMC8688316 DOI: 10.1002/hed.26914] [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: 07/22/2021] [Revised: 09/17/2021] [Accepted: 10/07/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Flap necrosis is a feared complication of reconstructive surgery. Current methods of prediction using Indocyanine green (ICG) lack specificity. IntegriSense750 is a fluorescence agent that binds sites of vascular remodeling. We hypothesized that IntegriSense750 better predicts flap compromise compared to ICG. METHODS Fifteen mice underwent lateral thoracic artery axial flap harvest. Mice received an injection of ICG (n = 7) or IntegriSense750 (n = 8) daily from postoperative days (POD) 0-3 and were imaged daily. Mean signal-to-background ratios quantified the change in fluorescence as necrosis progressed. RESULTS Mean signal-to-background ratio was significantly higher for IntegriSense750 compared to ICG on POD0 (1.47 ± 0.17 vs. 0.86 ± 0.21, p = 0.01) and daily through POD3 (2.12 ± 0.70 vs. 0.96 ± 0.29, p < 0.001). CONCLUSIONS IntegriSense750 demonstrates increased signal-to-background ratio at areas of flap distress compared to ICG which may increase identification of flap necrosis and improve patient outcomes.
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Affiliation(s)
- Melanie D Hicks
- Department of Otolaryngology – Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Alyssa K Ovaitt
- Department of Otolaryngology – Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Jason C Fleming
- Liverpool Head and Neck Centre, University of Liverpool & Aintree University Hospital, Liverpool, UK
| | - Anna G Sorace
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL,Department of Radiology, University of Alabama at Birmingham, Birmingham, AL,O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL
| | - Patrick N Song
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Ameer Mansur
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL,Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Yolanda E Hartman
- Department of Otolaryngology – Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Eben L Rosenthal
- Department of Otolaryngology – Head & Neck Surgery, Stanford University, Stanford, CA
| | - Jason M Warram
- Department of Otolaryngology – Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, AL,O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL
| | - Carissa M Thomas
- Department of Otolaryngology – Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, AL,O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL
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Gerges I, Tamplenizza M, Martello F, Koman S, Chincarini G, Recordati C, Tamplenizza M, Guelcher S, Crestani M, Tocchio A. Conditioning the microenvironment for soft tissue regeneration in a cell free scaffold. Sci Rep 2021; 11:13310. [PMID: 34172806 PMCID: PMC8233309 DOI: 10.1038/s41598-021-92732-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/08/2021] [Indexed: 11/08/2022] Open
Abstract
The use of cell-free scaffolds for the regeneration of clinically relevant volumes of soft tissue has been challenged, particularly in the case of synthetic biomaterials, by the difficulty of reconciling the manufacturing and biological performance requirements. Here, we investigated in vivo the importance of biomechanical and biochemical cues for conditioning the 3D regenerative microenvironment towards soft tissue formation. In particular, we evaluated the adipogenesis changes related to 3D mechanical properties by creating a gradient of 3D microenvironments with different stiffnesses using 3D Poly(Urethane-Ester-ether) PUEt scaffolds. Our results showed a significant increase in adipose tissue proportions while decreasing the stiffness of the 3D mechanical microenvironment. This mechanical conditioning effect was also compared with biochemical manipulation by loading extracellular matrices (ECMs) with a PPAR-γ activating molecule. Notably, results showed mechanical and biochemical conditioning equivalency in promoting adipose tissue formation in the conditions tested, suggesting that adequate mechanical signaling could be sufficient to boost adipogenesis by influencing tissue remodeling. Overall, this work could open a new avenue in the design of synthetic 3D scaffolds for microenvironment conditioning towards the regeneration of large volumes of soft and adipose tissue, with practical and direct implications in reconstructive and cosmetic surgery.
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Affiliation(s)
| | | | | | | | | | - Camilla Recordati
- Dipartimento di Medicina Veterinaria, Università Degli Studi di Milano, Via dell'Università, 6, 26900, Lodi, Italy
| | | | - Scott Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, 2301 Vanderbilt Place, PMB 351604, Nashville, TN, 37235-1604, USA
| | - Maurizio Crestani
- Dipartimento di Scienze Farmacologiche e Biomolecolari - DiSFeB, Università Degli Studi Di Milano, Via Balzaretti, 9, 20133, Milan, Italy
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Hu Q, Tang H, Yao Y, Liu S, Zhang H, Ramalingam M. Rapid fabrication of gelatin-based scaffolds with prevascularized channels for organ regeneration. Biomed Mater 2021; 16. [PMID: 33730706 DOI: 10.1088/1748-605x/abef7b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/17/2021] [Indexed: 12/13/2022]
Abstract
One of the biggest hinders in tissue engineering over the last decades was the complexity of the prevascularized channels of the engineered scaffold, which was still lower than that of human tissues. Another relative trouble was lacking precision molding capability, which restricted the clinical applications of the huge engineered scaffold. In this study, a promising approach was proposed to prepare hydrogel scaffold with prevascularized channels by liquid bath printing, which chitosan/β-sodium glycerophosphate (CS/β-GP) severed as the ink hydrogel, and gelation/nanoscale bacterial cellulose (Gel/BC) acted as the supporting hydrogel. Here, the ink hydrogel was printed by a versatile nozzle and embedded in the supporting hydrogel. Ink hydrogel transformed into liquid effluent at low temperature after cross-linking of gelatin by microbial transglutaminase (mTG). No residual template was seen on the channel surface after template removal. This preparation had a high degree of freedom in the geometry of the channel, which was demonstrated by making various prevascularized channels including circular, branched, and tree-shaped networks. The molding accuracy of the channel was detected by studying the roundness of the cross-section of the molded hollow channel, and the effect of the mechanical properties by adding BC to supporting hydrogel was analyzed. Human umbilical vein endothelial cells (HUVECs) were injected into the aforementioned channels and formed confluent and homogeneous distribution on the surface of channels. Altogether, these results showed that this approach can construct hydrogel scaffold with complex and accurate molding prevascularized channels, and had great potential to resolve urgent vascularization issue of bulk tissue-engineering scaffold.
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Affiliation(s)
- Qingxi Hu
- Shanghai University, 99, , Shanghai, 200444, CHINA
| | - Haihu Tang
- Shanghai University, 99, , Shanghai, 200444, CHINA
| | - Yuan Yao
- Shanghai University, 99, , Shanghai, 200444, CHINA
| | - Suihong Liu
- Rapid Manufacturing Engineering Center, Shanghai University, No.99 Shangda Road, BaoShan District, Shanghai, China, Shanghai, 200444, CHINA
| | | | - Murugan Ramalingam
- Vellore Institute of Technology, Vandalur - Kelambakkam Road, Chennai , Vellore, Tamil Nadu, 632014, INDIA
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Exploring the potential of polyurethane-based soft foam as cell-free scaffold for soft tissue regeneration. Acta Biomater 2018; 73:141-153. [PMID: 29654992 DOI: 10.1016/j.actbio.2018.04.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 03/23/2018] [Accepted: 04/04/2018] [Indexed: 01/12/2023]
Abstract
Reconstructive treatment after trauma and tumor resection would greatly benefit from an effective soft tissue regeneration. The use of cell-free scaffolds for adipose tissue regeneration in vivo is emerging as an attractive alternative to tissue-engineered constructs, since this approach avoids complications due to cell manipulation and lack of synchronous vascularization. In this study, we developed a biodegradable polyurethane-based scaffold for soft tissue regeneration, characterized by an exceptional combination between softness and resilience. Exploring the potential as a cell-free scaffold required profound understanding of the impact of its intrinsic physico-chemical properties on the biological performance in vivo. We investigated the effect of the scaffold's hydrophilic character, degradation kinetics, and internal morphology on (i) the local inflammatory response and activation of MGCs (foreign body response); (ii) its ability to promote rapid vascularisation, cell infiltration and migration through the scaffold over time; and (iii) the grade of maturation of the newly formed tissue into vascularized soft tissue in a murine model. The study revealed that soft tissue regeneration in vivo proceeded by gradual infiltration of undifferentiated mesenchymal cells though the periphery toward the center of the scaffold, where the rapid formation of a functional and well-formed vascular network supported cell viability overtime. STATEMENT OF SIGNIFICANCE Exploring the potential of polyurethane-based soft foam as cell-free scaffold for soft tissue regeneration. In this work, we address the unmet need for synthetic functional soft tissue substitutes that provide adequate biological and mechanical support to soft tissue. We developed a series of flexible cross-linked polyurethane copolymer scaffolds with remarkable fatigue-resistance and tunable physico-chemical properties for soft tissue regeneration in vivo. Accordingly, we could extend the potential of this class of biomaterials, which was so far confined for bone and osteochondral tissue regeneration, to other types of connective tissue.
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Abstract
Angiogenesis plays an important role not only in the growth and regeneration of tissues in humans but also in pathological conditions such as inflammation, degenerative disease and the formation of tumors. Angiogenesis is also vital in thick engineered tissues and constructs, such as those for the heart and bone, as these can face difficulties in successful implantation if they are insufficiently vascularized or unable to connect to the host vasculature. Considerable research has been carried out on angiogenic processes using a variety of approaches. Pathological angiogenesis has been analyzed at the cellular level through investigation of cell migration and interactions, modeling tissue level interactions between engineered blood vessels and whole organs, and elucidating signaling pathways involved in different angiogenic stimuli. Approaches to regenerative angiogenesis in ischemic tissues or wound repair focus on the vascularization of tissues, which can be broadly classified into two categories: scaffolds to direct and facilitate tissue growth and targeted delivery of genes, cells, growth factors or drugs that promote the regeneration. With technological advancement, models have been designed and fabricated to recapitulate the innate microenvironment. Moreover, engineered constructs provide not only a scaffold for tissue ingrowth but a reservoir of agents that can be controllably released for therapeutic purposes. This review summarizes the current approaches for modeling pathological and regenerative angiogenesis in the context of micro-/nanotechnology and seeks to bridge these two seemingly distant aspects of angiogenesis. The ultimate aim is to provide insights and advances from various models in the realm of angiogenesis studies that can be applied to clinical situations.
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Affiliation(s)
- Li-Jiun Chen
- Department of Finemechanics, Graduate School of Engineering, Tohoku University, 6-6-01 Aramaki, Aoba-ku, Sendai 980-8579, Japan.
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Patterning of Endothelial Cells and Mesenchymal Stem Cells by Laser-Assisted Bioprinting to Study Cell Migration. BIOMED RESEARCH INTERNATIONAL 2016; 2016:3569843. [PMID: 27833916 PMCID: PMC5090075 DOI: 10.1155/2016/3569843] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 09/14/2016] [Indexed: 12/23/2022]
Abstract
Tissue engineering of large organs is currently limited by the lack of potent vascularization in vitro. Tissue-engineered bone grafts can be prevascularized in vitro using endothelial cells (ECs). The microvascular network architecture could be controlled by printing ECs following a specific pattern. Using laser-assisted bioprinting, we investigated the effect of distance between printed cell islets and the influence of coprinted mesenchymal cells on migration. When printed alone, ECs spread out evenly on the collagen hydrogel, regardless of the distance between cell islets. However, when printed in coculture with mesenchymal cells by laser-assisted bioprinting, they remained in the printed area. Therefore, the presence of mesenchymal cell is mandatory in order to create a pattern that will be conserved over time. This work describes an interesting approach to study cell migration that could be reproduced to study the effect of trophic factors.
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