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Evans AD, Pournoori N, Saksala E, Oommen OP. Glycosaminoglycans' for brain health: Harnessing glycosaminoglycan based biomaterials for treating central nervous system diseases and in-vitro modeling. Biomaterials 2024; 309:122629. [PMID: 38797120 DOI: 10.1016/j.biomaterials.2024.122629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/06/2024] [Accepted: 05/19/2024] [Indexed: 05/29/2024]
Abstract
Dysfunction of the central nervous system (CNS) following traumatic brain injuries (TBI), spinal cord injuries (SCI), or strokes remains challenging to address using existing medications and cell-based therapies. Although therapeutic cell administration, such as stem cells and neuronal progenitor cells (NPCs), have shown promise in regenerative properties, they have failed to provide substantial benefits. However, the development of living cortical tissue engineered grafts, created by encapsulating these cells within an extracellular matrix (ECM) mimetic hydrogel scaffold, presents a promising functional replacement for damaged cortex in cases of stroke, SCI, and TBI. These grafts facilitate neural network repair and regeneration following CNS injuries. Given that natural glycosaminoglycans (GAGs) are a major constituent of the CNS, GAG-based hydrogels hold potential for the next generation of CNS healing therapies and in vitro modeling of CNS diseases. Brain-specific GAGs not only offer structural and biochemical signaling support to encapsulated neural cells but also modulate the inflammatory response in lesioned brain tissue, facilitating host integration and regeneration. This review briefly discusses different roles of GAGs and their related proteoglycan counterparts in healthy and diseases brain and explores current trends and advancements in GAG-based biomaterials for treating CNS injuries and modeling diseases. Additionally, it examines injectable, 3D bioprintable, and conductive GAG-based scaffolds, highlighting their clinical potential for in vitro modeling of patient-specific neural dysfunction and their ability to enhance CNS regeneration and repair following CNS injury in vivo.
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Affiliation(s)
- Austin D Evans
- Bioengineering and Nanomedicine Group, Faculty of Medicine and Health Technologies, Tampere University, 33720, Tampere, Finland
| | - Negin Pournoori
- Bioengineering and Nanomedicine Group, Faculty of Medicine and Health Technologies, Tampere University, 33720, Tampere, Finland
| | - Emmi Saksala
- Bioengineering and Nanomedicine Group, Faculty of Medicine and Health Technologies, Tampere University, 33720, Tampere, Finland
| | - Oommen P Oommen
- Bioengineering and Nanomedicine Group, Faculty of Medicine and Health Technologies, Tampere University, 33720, Tampere, Finland; School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff CF10 3NB, UK.
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2
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Zheng F, Tian R, Lu H, Liang X, Shafiq M, Uchida S, Chen H, Ma M. Droplet Microfluidics Powered Hydrogel Microparticles for Stem Cell-Mediated Biomedical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401400. [PMID: 38881184 DOI: 10.1002/smll.202401400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/21/2024] [Indexed: 06/18/2024]
Abstract
Stem cell-related therapeutic technologies have garnered significant attention of the research community for their multi-faceted applications. To promote the therapeutic effects of stem cells, the strategies for cell microencapsulation in hydrogel microparticles have been widely explored, as the hydrogel microparticles have the potential to facilitate oxygen diffusion and nutrient transport alongside their ability to promote crucial cell-cell and cell-matrix interactions. Despite their significant promise, there is an acute shortage of automated, standardized, and reproducible platforms to further stem cell-related research. Microfluidics offers an intriguing platform to produce stem cell-laden hydrogel microparticles (SCHMs) owing to its ability to manipulate the fluids at the micrometer scale as well as precisely control the structure and composition of microparticles. In this review, the typical biomaterials and crosslinking methods for microfluidic encapsulation of stem cells as well as the progress in droplet-based microfluidics for the fabrication of SCHMs are outlined. Moreover, the important biomedical applications of SCHMs are highlighted, including regenerative medicine, tissue engineering, scale-up production of stem cells, and microenvironmental simulation for fundamental cell studies. Overall, microfluidics holds tremendous potential for enabling the production of diverse hydrogel microparticles and is worthy for various stem cell-related biomedical applications.
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Affiliation(s)
- Fangqiao Zheng
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
| | - Ruizhi Tian
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hongxu Lu
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiao Liang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
| | - Muhammad Shafiq
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan
| | - Satoshi Uchida
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan
- Department of Advanced Nanomedical Engineering, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510, Japan
| | - Hangrong Chen
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ming Ma
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Hogwood J, Mulloy B, Lever R, Gray E, Page CP. Pharmacology of Heparin and Related Drugs: An Update. Pharmacol Rev 2023; 75:328-379. [PMID: 36792365 DOI: 10.1124/pharmrev.122.000684] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 02/17/2023] Open
Abstract
Heparin has been used extensively as an antithrombotic and anticoagulant for close to 100 years. This anticoagulant activity is attributed mainly to the pentasaccharide sequence, which potentiates the inhibitory action of antithrombin, a major inhibitor of the coagulation cascade. More recently it has been elucidated that heparin exhibits anti-inflammatory effect via interference of the formation of neutrophil extracellular traps and this may also contribute to heparin's antithrombotic activity. This illustrates that heparin interacts with a broad range of biomolecules, exerting both anticoagulant and nonanticoagulant actions. Since our previous review, there has been an increased interest in these nonanticoagulant effects of heparin, with the beneficial role in patients infected with SARS2-coronavirus a highly topical example. This article provides an update on our previous review with more recent developments and observations made for these novel uses of heparin and an overview of the development status of heparin-based drugs. SIGNIFICANCE STATEMENT: This state-of-the-art review covers recent developments in the use of heparin and heparin-like materials as anticoagulant, now including immunothrombosis observations, and as nonanticoagulant including a role in the treatment of SARS-coronavirus and inflammatory conditions.
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Affiliation(s)
- John Hogwood
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London, United Kingdom (B.M., E.G., C.P.P.); National Institute for Biological Standards and Control, South Mimms, Hertfordshire, United Kingdom (J.H., E.G.) and School of Pharmacy, University College London, London, United Kingdom (R.L.)
| | - Barbara Mulloy
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London, United Kingdom (B.M., E.G., C.P.P.); National Institute for Biological Standards and Control, South Mimms, Hertfordshire, United Kingdom (J.H., E.G.) and School of Pharmacy, University College London, London, United Kingdom (R.L.)
| | - Rebeca Lever
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London, United Kingdom (B.M., E.G., C.P.P.); National Institute for Biological Standards and Control, South Mimms, Hertfordshire, United Kingdom (J.H., E.G.) and School of Pharmacy, University College London, London, United Kingdom (R.L.)
| | - Elaine Gray
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London, United Kingdom (B.M., E.G., C.P.P.); National Institute for Biological Standards and Control, South Mimms, Hertfordshire, United Kingdom (J.H., E.G.) and School of Pharmacy, University College London, London, United Kingdom (R.L.)
| | - Clive P Page
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London, United Kingdom (B.M., E.G., C.P.P.); National Institute for Biological Standards and Control, South Mimms, Hertfordshire, United Kingdom (J.H., E.G.) and School of Pharmacy, University College London, London, United Kingdom (R.L.)
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Nawaz A, Zaman Safi S, Sikandar S, Zeeshan R, Zulfiqar S, Mehmood N, Alobaid HM, Rehman F, Imran M, Tariq M, Ali A, Emran TB, Yar M. Heparin-Loaded Alginate Hydrogels: Characterization and Molecular Mechanisms of Their Angiogenic and Anti-Microbial Potential. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15196683. [PMID: 36234025 PMCID: PMC9573464 DOI: 10.3390/ma15196683] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 05/06/2023]
Abstract
Background: Chronic wounds continue to be a global concern that demands substantial resources from the healthcare system. The process of cutaneous wound healing is complex, involving inflammation, blood clotting, angiogenesis, migration and remodeling. In the present study, commercially available alginate wound dressings were loaded with heparin. The purpose of the study was to enhance the angiogenic potential of alginate wound dressings and analyze the antibacterial activity, biocompatibility and other relevant properties. We also aimed to conduct some molecular and gene expression studies to elaborate on the mechanisms through which heparin induces angiogenesis. Methods: The physical properties of the hydrogels were evaluated by Fourier transform infrared spectroscopy (FTIR). Swelling ability was measured by soaking hydrogels in the Phosphate buffer at 37 °C, and cell studies were conducted to evaluate the cytotoxicity and biocompatibility of hydrogels in NIH3T3 (fibroblasts). Real-time PCR was conducted to check the molecular mechanisms of heparin/alginate-induced angiogenesis. The physical properties of the hydrogels were evaluated by Fourier transform infrared spectroscopy (FTIR). Results: FTIR confirmed the formation of heparin-loaded alginate wound dressing and the compatibility of both heparin and alginate. Among all, 10 µg/mL concentration of heparin showed the best antibacterial activity against E. coli. The swelling was considerably increased up to 1500% within 1 h. Alamar Blue assay revealed no cytotoxic effect on NIH3T3. Heparin showed good anti-microbial properties and inhibited the growth of E. coli in zones with a diameter of 18 mm. The expression analysis suggested that heparin probably exerts its pro-angiogenetic effect through VEGF and cPGE. Conclusions: We report that heparin-loaded alginate dressings are not cytotoxic and offer increased angiogenic and anti-bacterial potential. The angiogenesis is apparently taken through the VEGF pathway.
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Affiliation(s)
- Ayesha Nawaz
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan
- Department of Biology, Lahore Garrison University, Lahore 54810, Pakistan
| | - Sher Zaman Safi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia
- Correspondence:
| | - Shomaila Sikandar
- Department of Biology, Lahore Garrison University, Lahore 54810, Pakistan
| | - Rabia Zeeshan
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan
| | - Saima Zulfiqar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan
| | - Nadia Mehmood
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan
| | - Hussah M. Alobaid
- Department of Zoology, College of Science, King Saud University, Riyadh 11362, Saudi Arabia
| | - Fozia Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan
| | - Muhammad Imran
- Biochemistry Section, Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Pakistan
| | - Muhammad Tariq
- Department of Medical Laboratory Technology, University College of Duba, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Abid Ali
- Department of Zoology, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan
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5
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Newland B, Long KR. Cryogel scaffolds: soft and easy to use tools for neural tissue culture. Neural Regen Res 2022; 17:1981-1983. [PMID: 35142684 PMCID: PMC8848619 DOI: 10.4103/1673-5374.335156] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/13/2021] [Accepted: 09/13/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
- Ben Newland
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK
| | - Katherine R. Long
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK
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6
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Kim SHL, Cho S, Kim S, Kwon J, Lee J, Koh RH, Park JH, Lee H, Park TH, Hwang NS. Cellular direct conversion by cell penetrable OCT4-30Kc19 protein and BMP4 growth factor. Biomater Res 2022; 26:33. [PMID: 35836274 PMCID: PMC9281139 DOI: 10.1186/s40824-022-00280-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022] Open
Abstract
Background The number of patients suffering from osteoporosis is increasing as the elderly population increases. The demand for investigating bone regeneration strategies naturally arises. One of the approaches to induce bone regeneration is somatic cell transdifferentiation. Among the transcriptional regulators for transdifferentiation, octamer-binding transcription factor 4 (OCT4) is famous for its role in the regulation of pluripotency of stem cells. Bone morphogenetic protein 4 (BMP4) is another factor that is known to have a significant role in osteogenic differentiation. Previous studies have achieved transdifferentiation of cells into osteoblasts using viral and plasmid deliveries of these factors. Although these methods are efficient, viral and plasmid transfection have safety issues such as permanent gene incorporations and bacterial DNA insertions. Herein, we developed a cell penetrating protein-based strategy to induce transdifferentiation of endothelial cells into osteoblasts via nuclear delivery of OCT4 recombinant protein combined with the BMP4 treatment. For the nuclear delivery of OCT4 protein, we fused the protein with 30Kc19, a cell-penetrating and protein stabilizing protein derived from a silkworm hemolymph of Bombyx mori with low cytotoxic properties. This study proposes a promising cell-based therapy without any safety issues that existing transdifferentiation approaches had. Methods OCT4-30Kc19 protein with high penetrating activities and stability was synthesized for a protein-based osteogenic transdifferentiation system. Cells were treated with OCT4-30Kc19 and BMP4 to evaluate their cellular penetrating activity, cytotoxicity, osteogenic and angiogenic potentials in vitro. The osteogenic potential of 3D cell spheroids was also analyzed. In addition, in vivo cell delivery into subcutaneous tissue and cranial defect model was performed. Results OCT4-30Kc19 protein was produced in a soluble and stable form. OCT4-30Kc19 efficiently penetrated cells and were localized in intracellular compartments and the nucleus. Cells delivered with OCT4-30Kc19 protein combined with BMP4 showed increased osteogenesis, both in 2D and 3D culture, and showed increased angiogenesis capacity in vitro. Results from in vivo subcutaneous tissue delivery of cell-seeded scaffolds confirmed enhanced osteogenic properties of transdifferentiated HUVECs via treatment with both OCT4-30Kc19 and BMP4. In addition, in vivo mouse cranial defect experiment demonstrated successful bone regeneration of HUVECs pretreated with both OCT4-30Kc19 and BMP4. Conclusions Using a protein-based transdifferentiation method allows an alternative approach without utilizing any genetic modification strategies, thus providing a possibility for safer use of cell-based therapies in clinical applications. Supplementary Information The online version contains supplementary material available at 10.1186/s40824-022-00280-8.
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Affiliation(s)
- Seung Hyun L Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.,Department of Medicine, Standford University, 450 Serra Mall, Standford, 94305, USA
| | - Sungwoo Cho
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seoyeon Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Janet Kwon
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.,Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | - Jaeyoung Lee
- Department of Biomedical Science, Kangwon National University, Gangwon-do, Chuncheon, 24321, Republic of Korea
| | - Rachel H Koh
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea.,Max/N-Bio Institute, Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ju Hyun Park
- Department of Biomedical Science, Kangwon National University, Gangwon-do, Chuncheon, 24321, Republic of Korea
| | - Hwajin Lee
- School of Dentistry, Seoul National University, Seoul, 08826, Republic of Korea. .,Uppthera, BRC Laboratory, Yeonsu-gu, Incheon, 21990, Republic of Korea.
| | - Tai Hyun Park
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea. .,School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea. .,Max/N-Bio Institute, Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Nathaniel S Hwang
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea. .,School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea. .,Max/N-Bio Institute, Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.
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7
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Zhu W, Chen L, Wu Z, Li W, Liu X, Wang Y, Guo M, Ito Y, Wang L, Zhang P, Wang H. Bioorthogonal DOPA-NGF activated tissue engineering microunits for recovery from traumatic brain injury by microenvironment regulation. Acta Biomater 2022; 150:67-82. [PMID: 35842032 DOI: 10.1016/j.actbio.2022.07.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 07/07/2022] [Accepted: 07/07/2022] [Indexed: 01/03/2023]
Abstract
Stem cell treatment is vital for recovery from traumatic brain injury (TBI). However, severe TBI usually leads to excessive inflammation and neuroinhibitory factors in the injured brain, resulting in poor neural cell survival and uncontrolled formation of glial scars. In this study, a bioorthogonal microenvironment was constructed on biodegradable poly(lactide-co-glycolide) (PLGA) microcarriers through immobilization of mussel-inspired bioorthogonal 3,4-dihydroxyphenylalanine-containing recombinant nerve growth factor (DOPA-NGF) and human umbilical cord mesenchymal stem cells (hUMSCs) for minimally invasive therapy of TBI. Cell culture and RNA-seq analysis revealed enhanced extracellular matrix (ECM) secretion and viability of hUMSCs on PLGA microcarriers compared to 2D culture. Immobilized DOPA-NGF further promoted adhesion, proliferation, and gene expression in RSC96 neurotrophic cells and hUMSCs. Specifically, the neurotrophin receptor of NT-3 (NTRK3) in hUMSCs was activated by DOPA-NGF, leading to MYC transcription and paracrine enhancement to build an adjustable biomimetic microenvironment. After transplantation of microunits in animal models, the motor and learning-memory ability of TBI mice were improved through rollbacks of overactivated inflammatory reaction regulation, neuronal death, and glial scar formation after injury. This was attributed to the paracrine enhancement of hUMSCs activated by the DOPA-NGF. Our study provides a neural regenerative microenvironment-based therapeutic strategy to advance the effects of transplanted hUMSCs in cell-based regenerative medicine for TBI therapy. STATEMENT OF SIGNIFICANCE: Extensive studies have demonstrated the importance of the microenvironment for posttraumatic brain injury recovery. However, an efficient method that can mimic the neural regenerative microenvironment to strengthen stem cell therapy and brain injury recovery is still absent. In this study, the minimally invasive transplantation of DOPA-NGF immobilized biodegradable microcarriers with mesenchymal stem cells was found to be an effective method for regeneration of injured brain. Moreover, transcriptome analysis revealed that neurotrophin receptor of NT-3 (NTRK3) was activated by DOPA-NGF for MYC transcription and paracrine enhancement to build a kind of adjustable biomimetic microenvironment for brain injury therapy. This study provides a neural regenerative microenvironment-based therapeutic strategy to advance the transplanted hUMSCs in cell-based regenerative medicine for neural recovery.
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Affiliation(s)
- Wenhao Zhu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Li Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; Key Laboratory of Molecular Epigenetics, Institute of Genetics and Cytology, Northeast Normal University, 130024, China
| | - Zhenxu Wu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Wenzhong Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Xiaolong Liu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Yu Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Min Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Yoshihiro Ito
- Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science, Saitama, 351-0198, Japan
| | - Liqiang Wang
- Department of Ophthalmology, Third Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
| | - Haifeng Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China.
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8
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Ladeira BMF, Gomes MC, Custódio CA, Mano JF. High-Throughput Production of Microsponges from Platelet Lysate for Tissue Engineering Applications. Tissue Eng Part C Methods 2022; 28:325-334. [PMID: 35343236 DOI: 10.1089/ten.tec.2022.0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cell-based therapies require a large number of cells, as well as appropriate methods to deliver the cells to damaged tissue. Microcarriers provide an optimal platform for large-scale cell culture while also improving cell retention during cell delivery. However, this technology still presents significant challenges due to low-throughput fabrication methods and an inability of the microcarriers to recreate the properties of human tissue. This work proposes, for the first time, the use of methacryloyl platelet lysates (PLMA), a photocrosslinkable material derived from human platelet lysates, to produce porous microcarriers. Initially, high quantities of PLMA/alginate core-shell microcapsules are produced using coaxial electrospray. Subsequently, the microcapsules are collected, irradiated with ultraviolet light, washed, and freeze dried yielding PLMA microsponges. These microsponges are able to support the adhesion and proliferation of human adipose-derived stem cells, while also displaying potential in the assembly of autologous microtissues. Cell-laden microsponges were shown to self-organize into aggregates, suggesting possible applications in bottom-up tissue engineering applications. Impact Statement Microcarriers have increasingly been used as delivery platforms in cell therapy. Herein, the encapsulation of human-derived proteins in alginate microcapsules is proposed as a method to produce microcarriers from photopolymerizable materials. The capsules function as a template structure, which is then processed into spherical microparticles, which can be used in cell culture, cell delivery, and bottom-up assembly. As a proof of concept, this method was combined with lyophilization to process methacryloyl platelet lysates into injectable microsponges for cell delivery.
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Affiliation(s)
- Bruno M F Ladeira
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Maria C Gomes
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Catarina A Custódio
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - João F Mano
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
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Ustürk S, Altundag EM, Yilmaz E. Pullulan/
polyHEMA
cryogels: Synthesis, physicochemical properties, and cell viability. J Appl Polym Sci 2022. [DOI: 10.1002/app.51822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Selma Ustürk
- Department of Chemistry, Faculty of Arts and Sciences Eastern Mediterranean University Mersin10 Turkey
| | - Ergul Mutlu Altundag
- Department of Medical Biochemistry, Faculty of Medicine Eastern Mediterranean University Mersin10 Turkey
| | - Elvan Yilmaz
- Department of Chemistry, Faculty of Arts and Sciences Eastern Mediterranean University Mersin10 Turkey
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10
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Ladeira B, Custodio C, Mano J. Core-Shell Microcapsules: Biofabrication and Potential Applications in Tissue Engineering and Regenerative Medicine. Biomater Sci 2022; 10:2122-2153. [DOI: 10.1039/d1bm01974k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The construction of biomaterial scaffolds that accurately recreate the architecture of living tissues in vitro is a major challenge in the field of tissue engineering and regenerative medicine. Core-shell microcapsules...
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11
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Song Y, Chen W, Gai K, Lin F, Sun W. Culture models produced via biomanufacturing for neural tissue-like constructs based on primary neural and neural stem cells. BRAIN SCIENCE ADVANCES 2021. [DOI: 10.26599/bsa.2021.9050021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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12
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Heparin and Derivatives for Advanced Cell Therapies. Int J Mol Sci 2021; 22:ijms222112041. [PMID: 34769471 PMCID: PMC8584295 DOI: 10.3390/ijms222112041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 12/27/2022] Open
Abstract
Heparin and its derivatives are saving thousands of human lives annually, by successfully preventing and treating thromboembolic events. Although the mode of action during anticoagulation is well studied, their influence on cell behavior is not fully understood as is the risk of bleeding and other side effects. New applications in regenerative medicine have evolved supporting production of cell-based therapeutics or as a substrate for creating functionalized matrices in biotechnology. The currently resurgent interest in heparins is related to the expected combined anti-inflammatory, anti-thrombotic and anti-viral action against COVID-19. Based on a concise summary of key biochemical and clinical data, this review summarizes the impact for manufacturing and application of cell therapeutics and highlights the need for discriminating the different heparins.
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Sievers J, Zimmermann R, Friedrichs J, Pette D, Limasale YDP, Werner C, Welzel PB. Customizing biohybrid cryogels to serve as ready-to-use delivery systems of signaling proteins. Biomaterials 2021; 278:121170. [PMID: 34628192 DOI: 10.1016/j.biomaterials.2021.121170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 09/09/2021] [Accepted: 09/28/2021] [Indexed: 12/17/2022]
Abstract
Macroporous cryogels have recently gained increasing interest for the controlled administration of signaling proteins in tissue engineering due to an advantageous combination of material properties. However, most of the previously reported cryogel systems did not allow for tunable, sustained protein release. We therefore designed a set of ready-to-use multi-armed polyethylene glycol (starPEG)-heparin cryogel systems containing different amounts of the protein-affine glycosaminoglycan component heparin to enable systematically tunable long-term delivery of different signaling proteins without affecting other cell-instructive properties. Experimental data and mathematical modeling indicate that the macroporous structure causes local differences in the concentration of proteins released into the pores and in the surrounding of the cryogels. As a proof-of-concept for their ready-to-use potential, cryogels pre-functionalized with signaling proteins and cell adhesion-peptides were demonstrated to induce the neuronal differentiation of colonizing pheochromocytoma cells. The elaborated approach opens up new perspectives for cryogels as easily storable and applicable systems for the precision delivery of signaling proteins.
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Affiliation(s)
- Jana Sievers
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Str. 6, 01069, Dresden, Germany
| | - Ralf Zimmermann
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Str. 6, 01069, Dresden, Germany
| | - Jens Friedrichs
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Str. 6, 01069, Dresden, Germany
| | - Dagmar Pette
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Str. 6, 01069, Dresden, Germany
| | - Yanuar Dwi Putra Limasale
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Str. 6, 01069, Dresden, Germany
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Str. 6, 01069, Dresden, Germany; Technische Universität Dresden, Center for Regenerative Therapies Dresden and Cluster of Excellence Physics of Life, 01062, Dresden, Germany.
| | - Petra Birgit Welzel
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Str. 6, 01069, Dresden, Germany.
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14
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Demirci S, Sahiner M, Ari B, Sunol AK, Sahiner N. Chondroitin Sulfate-Based Cryogels for Biomedical Applications. Gels 2021; 7:127. [PMID: 34462411 PMCID: PMC8406096 DOI: 10.3390/gels7030127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/22/2021] [Accepted: 08/25/2021] [Indexed: 12/23/2022] Open
Abstract
Cryogels attained from natural materials offer exceptional properties in applications such as tissue engineering. Moreover, Halloysite Nanotubes (HNT) at 1:0.5 weight ratio were embedded into CS cryogels to render additional biomedical properties. The hemolysis index of CS cryogel and CS:HNT cryogels was calculated as 0.77 ± 0.41 and 0.81 ± 0.24 and defined as non-hemolytic materials. However, the blood coagulation indices of CS cryogel and CS:HNT cryogels were determined as 76 ± 2% and 68 ± 3%, suggesting a mild blood clotting capability. The maximum% swelling capacity of CS cryogel was measured as 3587 ± 186%, 4014 ± 184%, and 3984 ± 113%, at pH 1.0, pH 7.4 and pH 9.0, respectively, which were reduced to 1961 ± 288%, 2816 ± 192, 2405 ± 73%, respectively, for CS:HNT cryogel. It was found that CS cryogels can hydrolytically be degraded 41 ± 1% (by wt) in 16-day incubation, whereas the CS:HNT cryogels degraded by 30 ± 1 wt %. There is no chelation for HNT and 67.5 ± 1% Cu(II) chelation for linear CS was measured. On the other hand, the CS cryogel and CS:HNT cryogel revealed Cu(II) chelating capabilities of 60.1 ± 12.5%, and 43.2 ± 17.5%, respectively, from 0.1 mg/mL Cu(II) ion stock solution. Additionally, at 0.5 mg/mL CS, CS:HNT, and HNT, the Fe(II) chelation capacity of 99.7 ± 0.6, 86.2 ± 4.7% and only 11.9 ± 4.5% were measured, respectively, while no Fe(II) was chelated by linear CS chelated Fe(II). As the adjustable and controllable swelling properties of cryogels are important parameters in biomedical applications, the swelling properties of CS cryogels, at different solution pHs, e.g., at the solution pHs of 1.0, 7.4 and 9.0, were measured as 3587 ± 186%, 4014 ± 184%, and 3984 ± 113%, respectively, and the maximum selling% values of CS:HNT cryogels were determined as 1961 ± 288%, 2816 ± 192, 2405 ± 73%, respectively, at the same conditions. Alpha glucosidase enzyme interactions were investigated and found that CS-based cryogels can stimulate this enzyme at any CS formulation.
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Affiliation(s)
- Sahin Demirci
- Department of Chemistry, Faculty of Sciences & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey; (S.D.); (B.A.)
| | - Mehtap Sahiner
- Faculty of Canakkale School of Applied Science, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey;
| | - Betul Ari
- Department of Chemistry, Faculty of Sciences & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey; (S.D.); (B.A.)
| | - Aydin K. Sunol
- Department of Chemical & Biomedical Engineering, and Materials Science and Engineering, University of South Florida, Tampa, FL 33620, USA;
| | - Nurettin Sahiner
- Department of Chemistry, Faculty of Sciences & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey; (S.D.); (B.A.)
- Department of Chemical & Biomedical Engineering, and Materials Science and Engineering, University of South Florida, Tampa, FL 33620, USA;
- Department of Ophthalmology, University of South Florida, Tampa, FL 33620, USA
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15
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Newland B, Newland H, Lorenzi F, Eigel D, Welzel PB, Fischer D, Wang W, Freudenberg U, Rosser A, Werner C. Injectable Glycosaminoglycan-Based Cryogels from Well-Defined Microscale Templates for Local Growth Factor Delivery. ACS Chem Neurosci 2021; 12:1178-1188. [PMID: 33754692 PMCID: PMC8033563 DOI: 10.1021/acschemneuro.1c00005] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
![]()
Glycosaminoglycan-based hydrogels
hold great potential for applications
in tissue engineering and regenerative medicine. By mimicking the
natural extracellular matrix processes of growth factor binding and
release, such hydrogels can be used as a sustained delivery device
for growth factors. Since neural networks commonly follow well-defined,
high-aspect-ratio paths through the central and peripheral nervous
system, we sought to create a fiber-like, elongated growth factor
delivery system. Cryogels, with networks formed at subzero temperatures,
are well-suited for the creation of high-aspect-ratio biomaterials,
because they have a macroporous structure making them mechanically
robust (for ease of handling) yet soft and highly compressible (for
interfacing with brain tissue). Unlike hydrogels, cryogels can be
synthesized in advance of their use, stored with ease, and rehydrated
quickly to their original shape. Herein, we use solvent-assisted microcontact
molding to form sacrificial templates, in which we produced highly
porous cryogel microscale scaffolds with a well-defined elongated
shape via the photopolymerization of poly(ethylene glycol) diacrylate
and maleimide-functionalized heparin. Dissolution of the template
yielded cryogels that could load nerve growth factor (NGF) and release
it over a period of 2 weeks, causing neurite outgrowth in PC12 cell
cultures. This microscale template-assisted synthesis technique allows
tight control over the cryogel scaffold dimensions for high reproducibility
and ease of injection through fine gauge needles.
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Affiliation(s)
- Ben Newland
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff CF10 3NB, U.K
| | - Heike Newland
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Francesca Lorenzi
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Francesco Marzolo, 135131 Padova, Italy
| | - Dimitri Eigel
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Petra B. Welzel
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Dieter Fischer
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Wenxin Wang
- Charles Institute for Dermatology, University College Dublin, Dublin D04 V1W8, Ireland
| | - Uwe Freudenberg
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Anne Rosser
- Brain Repair Group, School of Biosciences, Cardiff University, Cardiff CF10 3AX, U.K
- Brain Repair And Intracranial Neurotherapeutics (BRAIN) Unit, Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis
Building, Maindy Road, Cardiff CF24 4HQ3, U.K
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden e.V., Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
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16
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Eigel D, Schuster R, Männel MJ, Thiele J, Panasiuk MJ, Andreae LC, Varricchio C, Brancale A, Welzel PB, Huttner WB, Werner C, Newland B, Long KR. Sulfonated cryogel scaffolds for focal delivery in ex-vivo brain tissue cultures. Biomaterials 2021; 271:120712. [PMID: 33618220 DOI: 10.1016/j.biomaterials.2021.120712] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 02/02/2021] [Accepted: 02/07/2021] [Indexed: 12/11/2022]
Abstract
The human brain has unique features that are difficult to study in animal models, including the mechanisms underlying neurodevelopmental and psychiatric disorders. Despite recent advances in human primary brain tissue culture systems, the use of these models to elucidate cellular disease mechanisms remains limited. A major reason for this is the lack of tools available to precisely manipulate a specific area of the tissue in a reproducible manner. Here we report an easy-to-use tool for site-specific manipulation of human brain tissue in culture. We show that line-shaped cryogel scaffolds synthesized with precise microscale dimensions allow the targeted delivery of a reagent to a specific region of human brain tissue in culture. 3-sulfopropyl acrylate (SPA) was incorporated into the cryogel network to yield a negative surface charge for the reversible binding of molecular cargo. The fluorescent dyes BODIPY and DiI were used as model cargos to show that placement of dye loaded scaffolds onto brain tissue in culture resulted in controlled delivery without a burst release, and labelling of specific regions without tissue damage. We further show that cryogels can deliver tetrodotoxin to tissue, inhibiting neuronal function in a reversible manner. The robust nature and precise dimensions of the cryogel resulted in a user-friendly and reproducible tool to manipulate primary human tissue cultures. These easy-to-use cryogels offer an innovate approach for more complex manipulations of ex-vivo tissue.
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Affiliation(s)
- Dimitri Eigel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
| | - Romy Schuster
- Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstraße 108, D-01307, Dresden, Germany
| | - Max J Männel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
| | - Julian Thiele
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
| | - Martyna J Panasiuk
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, MRC Centre for Neurodevelopmental Disorders, King's College London, London, SE1 1UL, United Kingdom
| | - Laura C Andreae
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, MRC Centre for Neurodevelopmental Disorders, King's College London, London, SE1 1UL, United Kingdom
| | - Carmine Varricchio
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Andrea Brancale
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Petra B Welzel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
| | - Wieland B Huttner
- Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstraße 108, D-01307, Dresden, Germany
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany; Technische Universität Dresden, Center for Regenerative Therapies Dresden, Fetscherstr. 105, 01307, Dresden, Germany
| | - Ben Newland
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany; School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK.
| | - Katherine R Long
- Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstraße 108, D-01307, Dresden, Germany; Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, MRC Centre for Neurodevelopmental Disorders, King's College London, London, SE1 1UL, United Kingdom.
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17
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Eigel D, Werner C, Newland B. Cryogel biomaterials for neuroscience applications. Neurochem Int 2021; 147:105012. [PMID: 33731275 DOI: 10.1016/j.neuint.2021.105012] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/16/2022]
Abstract
Biomaterials in the form of 3D polymeric scaffolds have been used to create structurally and functionally biomimetic constructs of nervous system tissue. Such constructs can be used to model defects and disease or can be used to supplement neuronal tissue regeneration and repair. One such group of biomaterial scaffolds are hydrogels, which have been widely investigated for cell/tissue culture and as cell or molecule delivery systems in the field of neurosciences. However, a subset of hydrogels called cryogels, have shown to possess several distinct structural advantages over conventional hydrogel networks. Their macroporous structure, created via the time and resource efficient fabrication process (cryogelation) not only allows mass fluid transport throughout the structure, but also creates a high surface area to volume ratio for cell growth or drug loading. In addition, the macroporous structure of cryogels is ideal for applications in the central nervous system as they are very soft and spongey, yet also robust, which makes them a user-friendly and reproducible tool to address neuroscience challenges. In this review, we aim to provide the neuroscience community, who may not be familiar with the fundamental concepts of cryogels, an accessible summary of the basic information that pertain to their use in the brain and nervous tissue. We hope that this review shall initiate creative ways that cryogels could be further adapted and employed to tackle unsolved neuroscience challenges.
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Affiliation(s)
- Dimitri Eigel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069, Dresden, Germany
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069, Dresden, Germany; Technische Universität Dresden, Center for Regenerative Therapies Dresden, Dresden, Germany
| | - Ben Newland
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069, Dresden, Germany; School of Pharmacy and Pharmaceutical Sciences, Cardiff University, CF10 3NB, Cardiff, Wales, UK.
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18
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Alghamdi M, Chierchini F, Eigel D, Taplan C, Miles T, Pette D, Welzel PB, Werner C, Wang W, Neto C, Gumbleton M, Newland B. Poly(ethylene glycol) based nanotubes for tuneable drug delivery to glioblastoma multiforme. NANOSCALE ADVANCES 2020; 2:4498-4509. [PMID: 36132909 PMCID: PMC9418774 DOI: 10.1039/d0na00471e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/20/2020] [Indexed: 06/16/2023]
Abstract
Glioblastoma multiforme (GBM) is the most aggressive type of malignant brain tumour, which is associated with a poor two-year survival rate and a high rate of fatal recurrence near the original tumour. Focal/local drug delivery devices hold promise for improving therapeutic outcomes for GBM by increasing drug concentrations locally at the tumour site, or by facilitating the use of potent anti-cancer drugs that are poorly permeable across the blood brain barrier (BBB). For inoperable tumours, stereotactic delivery to the tumour necessitates the development of nanoscale/microscale injectable drug delivery devices. Herein we assess the ability of a novel class of polymer nanotube (based on poly(ethylene glycol) (PEG)) to load doxorubicin (a mainstay breast cancer therapeutic with poor BBB permeability) and release it slowly. The drug loading properties of the PEG nanotubes could be tuned by varying the degree of carboxylic acid functionalisation and hence the capacity of the nanotubes to electrostatically bind and load doxorubicin. 70% of the drug was released over the first seven days followed by sustained drug release for the remaining two weeks tested. Unloaded PEG nanotubes showed no toxicity to any of the cell types analysed, whereas doxorubicin loaded nanotubes decreased GBM cell viability (C6, U-87 and U-251) in a dose dependent manner in 2D in vitro culture. Finally, doxorubicin loaded PEG nanotubes significantly reduced the viability of in vitro 3D GBM models whilst unloaded nanotubes showed no cytotoxicity. Taken together, these findings show that polymer nanotubes could be used to deliver alternative anti-cancer drugs for local therapeutic strategies against brain cancers.
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Affiliation(s)
- Majed Alghamdi
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University King Edward VII Avenue Cardiff CF10 3NB UK
- School of Pharmacy, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Filippo Chierchini
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Dimitri Eigel
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden Hohe Straße 6 D-01069 Dresden Germany
| | - Christian Taplan
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden Hohe Straße 6 D-01069 Dresden Germany
| | - Thomas Miles
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Dagmar Pette
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden Hohe Straße 6 D-01069 Dresden Germany
| | - Petra B Welzel
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden Hohe Straße 6 D-01069 Dresden Germany
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden Hohe Straße 6 D-01069 Dresden Germany
| | - Wenxin Wang
- Charles Institute of Dermatology, School of Medicine, University College Dublin Ireland
| | - Catia Neto
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Mark Gumbleton
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Ben Newland
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University King Edward VII Avenue Cardiff CF10 3NB UK
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden Hohe Straße 6 D-01069 Dresden Germany
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19
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Newland B, Varricchio C, Körner Y, Hoppe F, Taplan C, Newland H, Eigel D, Tornillo G, Pette D, Brancale A, Welzel PB, Seib FP, Werner C. Focal drug administration via heparin-containing cryogel microcarriers reduces cancer growth and metastasis. Carbohydr Polym 2020; 245:116504. [PMID: 32718615 DOI: 10.1016/j.carbpol.2020.116504] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/11/2020] [Accepted: 05/21/2020] [Indexed: 12/12/2022]
Abstract
Developing drug delivery systems that release anticancer drugs in a controlled and sustained manner remains challenging. We hypothesized that highly sulfated heparin-based microcarriers would allow electrostatic drug binding and controlled release. In silico modelling showed that the anticancer drug doxorubicin has affinity for the heparin component of the microcarriers. Experimental results showed that the strong electrostatic interaction was reversible, allowing both doxorubicin loading and a subsequent slow release over 42 days without an initial burst release. The drug-loaded microcarriers were able to reduce cancer cell viability in vitro in both hormone-dependent and highly aggressive triple-negative human breast cancer cells. Focal drug treatment, of an in vivo orthotopic triple-negative breast cancer model significantly decreased tumor burden and reduced cancer metastasis, whereas systemic administration of an equivalent drug dose was ineffective. This study proves that heparin-based microcarriers can be used as drug delivery platforms, for focal delivery and sustained long-term drug release.
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Affiliation(s)
- Ben Newland
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK; Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany.
| | - Carmine Varricchio
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Yvonne Körner
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany
| | - Franziska Hoppe
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany
| | - Christian Taplan
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany
| | - Heike Newland
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany
| | - Dimitri Eigel
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany
| | - Giusy Tornillo
- European Cancer Stem Cell Research Institute, School of Biosciences, Hadyn Ellis Building, Cardiff University, Cardiff, CF24 4HQ, UK
| | - Dagmar Pette
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany
| | - Andrea Brancale
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Petra B Welzel
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany
| | - F Philipp Seib
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK; EPSRC Future Manufacturing Research Hub for Continuous Manufacturing and Advanced Crystallisation (CMAC), University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069, Dresden, Germany; Technische Universität Dresden, Center for Regenerative Therapies Dresden, Fetscherstr. 105, 01307, Dresden, Germany
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20
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Marchini A, Favoino C, Gelain F. Multi-Functionalized Self-Assembling Peptides as Reproducible 3D Cell Culture Systems Enabling Differentiation and Survival of Various Human Neural Stem Cell Lines. Front Neurosci 2020; 14:413. [PMID: 32431590 PMCID: PMC7214803 DOI: 10.3389/fnins.2020.00413] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/06/2020] [Indexed: 12/13/2022] Open
Abstract
Neural stem cells-based therapies have shown great potential for central nervous system regeneration, with three-dimensional (3D) culture systems representing a key technique for tissue engineering applications, as well as disease modeling and drug screenings. Self-assembling peptides (SAPs), providing biomimetic synthetic micro-environments regulating cellular functionality and tissue repair, constitute a suitable tool for the production of complex tissue-like structures in vitro. However, one of the most important drawbacks in 3D cultures, obtained via animal-derived substrates and serum-rich media, is the reproducibility and tunability of a standardized methodology capable to coax neural differentiation of different human cell lines. In this work we cultured four distinct human neural stem cell (hNSC) lines in 3D synthetic multifunctionalized hydrogel (named HYDROSAP) for up to 6 weeks. Three-dimensional cultures of differentiating hNSCs exhibited a progressive differentiation and maturation over time. All hNSCs-derived neurons in 3D culture system exhibited randomly organized entangled networks with increasing expression of GABAergic and glutamatergic phenotypes and presence of cholinergic ones. Oligodendrocytes formed insulating myelin sheaths positive for myelin basic protein (MBP). In summary, results demonstrated a successfully standardized and reproducible 3D cell culture system for hNSC differentiation and maturation in serum-free conditions useful for future therapies.
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Affiliation(s)
- Amanda Marchini
- Tissue Engineering Unit, Institute for Stem Cell Biology, Regenerative Medicine and Innovative Therapies-ISBReMIT, Fondazione IRCSS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.,Center for Nanomedicine and Tissue Engineering, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Chiara Favoino
- Center for Nanomedicine and Tissue Engineering, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy.,Department of Biotechnology and Biosciences, University of Milan-Bicocca, Milan, Italy
| | - Fabrizio Gelain
- Tissue Engineering Unit, Institute for Stem Cell Biology, Regenerative Medicine and Innovative Therapies-ISBReMIT, Fondazione IRCSS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.,Center for Nanomedicine and Tissue Engineering, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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21
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Newland B, Ehret F, Hoppe F, Eigel D, Pette D, Newland H, Welzel PB, Kempermann G, Werner C. Static and dynamic 3D culture of neural precursor cells on macroporous cryogel microcarriers. MethodsX 2020; 7:100805. [PMID: 32071891 PMCID: PMC7011076 DOI: 10.1016/j.mex.2020.100805] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/20/2020] [Indexed: 12/24/2022] Open
Abstract
Neural precursor cells have been much studied to further our understanding of the far-reaching and controversial question of adult neurogenesis. Currently, differentiation of primary neural precursor cells from the mouse dentate gyrus via 2-dimentional in vitro culture yields low numbers of neurons, a major hindrance to the field of study. 3-dimentional “neurosphere” culture allows better 3D cell-cell contact, but control over cell differentiation is poor because nutrition and oxygen restrictions at the core of the sphere causes spontaneous differentiation, predominantly to glial cells, not neurons. Our group has developed macroporous scaffolds, which overcome the above-mentioned problems, allowing long-term culture of neural stem cells, which can be differentiated into a much higher yield of neurons. Herein we describe a method for culturing neural precursor cells on RGD peptide functionalized-heparin containing cryogel scaffolds, either in standard non-adherent well-plates (static culture) or in spinner flasks (dynamic culture). This method includes: The synthesis and characterization of heparin based microcarriers. A “static” 3D culture method for that does not require spinner flask equipment. “Dynamic” culture in which cell loaded microcarriers are transferred to a spinner flask.
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Affiliation(s)
- Ben Newland
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069, Dresden, Germany.,School of Pharmacy and Pharmaceutical Sciences, Cardiff University, CF10 3NB, Cardiff, UK
| | - Fanny Ehret
- German Center for Neurodegenerative Diseases (DZNE) Dresden, 01307, Dresden, Germany
| | - Franziska Hoppe
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069, Dresden, Germany
| | - Dimitri Eigel
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069, Dresden, Germany
| | - Dagmar Pette
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069, Dresden, Germany
| | - Heike Newland
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069, Dresden, Germany
| | - Petra B Welzel
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069, Dresden, Germany
| | - Gerd Kempermann
- German Center for Neurodegenerative Diseases (DZNE) Dresden, 01307, Dresden, Germany.,CRTD - Center for Regenerative Therapies Dresden, Technische Universität Dresden, 01307, Dresden, Germany
| | - Carsten Werner
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069, Dresden, Germany.,CRTD - Center for Regenerative Therapies Dresden, Technische Universität Dresden, 01307, Dresden, Germany
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