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Wang S, He Q, Qu Y, Yin W, Zhao R, Wang X, Yang Y, Guo ZN. Emerging strategies for nerve repair and regeneration in ischemic stroke: neural stem cell therapy. Neural Regen Res 2024; 19:2430-2443. [PMID: 38526280 PMCID: PMC11090435 DOI: 10.4103/1673-5374.391313] [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: 07/19/2023] [Revised: 09/26/2023] [Accepted: 11/10/2023] [Indexed: 03/26/2024] Open
Abstract
Ischemic stroke is a major cause of mortality and disability worldwide, with limited treatment options available in clinical practice. The emergence of stem cell therapy has provided new hope to the field of stroke treatment via the restoration of brain neuron function. Exogenous neural stem cells are beneficial not only in cell replacement but also through the bystander effect. Neural stem cells regulate multiple physiological responses, including nerve repair, endogenous regeneration, immune function, and blood-brain barrier permeability, through the secretion of bioactive substances, including extracellular vesicles/exosomes. However, due to the complex microenvironment of ischemic cerebrovascular events and the low survival rate of neural stem cells following transplantation, limitations in the treatment effect remain unresolved. In this paper, we provide a detailed summary of the potential mechanisms of neural stem cell therapy for the treatment of ischemic stroke, review current neural stem cell therapeutic strategies and clinical trial results, and summarize the latest advancements in neural stem cell engineering to improve the survival rate of neural stem cells. We hope that this review could help provide insight into the therapeutic potential of neural stem cells and guide future scientific endeavors on neural stem cells.
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Affiliation(s)
- Siji Wang
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Qianyan He
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Yang Qu
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Wenjing Yin
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Ruoyu Zhao
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Xuyutian Wang
- Department of Breast Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Yi Yang
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
- Neuroscience Research Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Zhen-Ni Guo
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
- Neuroscience Research Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
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2
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Jiang S, Yuan C, Zou T, Koh JH, Basabrain M, Chen Q, Liu J, Heng BC, Lim LW, Wang P, Zhang C. An Injectable Hydrogel Loaded with GMSCs-Derived Neural Lineage Cells Promotes Recovery after Stroke. Tissue Eng Part A 2024. [PMID: 38756085 DOI: 10.1089/ten.tea.2023.0330] [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: 05/18/2024] Open
Abstract
Ischemic stroke is a devastating medical condition with poor prognosis due to the lack of effective treatment modalities. Transplantation of human neural stem cells or primary neural cells is a promising treatment approach, but this is hindered by limited suitable cell sources and low in vitro expansion capacity. This study aimed (1) use small molecules (SM) to reprogram gingival mesenchymal stem cells (GMSCs) commitment to the neural lineage cells in vitro, and (2) use hyaluronic acid (HA) hydrogel scaffolds seeded with GMSCs-derived neural lineage cells to treat ischemic stroke in vivo. Neural induction was carried out with a SM cocktail-based one-step culture protocol over a period of 24 h. The induced cells were analyzed for expression of neural markers with immunocytochemistry and quantitative real-time polymerase chain reaction (qRT-PCR). The Sprague-Dawley (SD) rats (n = 100) were subjected to the middle cerebral artery occlusion (MCAO) reperfusion ischemic stroke model. Then, after 8 days post-MCAO, the modeled rats were randomly assigned to six study groups (n = 12 per group): (1) GMSCs, (2) GMSCs-derived neural lineage cells, (3) HA and GMSCs-derived neural lineage cells, (4) HA, (5) PBS, and (6) sham transplantation control, and received their respective transplantation. Evaluation of post-stroke recovery were performed by behavioral tests and histological assessments. The morphologically altered nature of neural lineages has been observed of the GMSCs treated with SMs compared to the untreated controls. As shown by the qRT-PCR and immunocytochemistry, SMs further significantly enhanced the expression level of neural markers of GMSCs as compared with the untreated controls (all p < 0.05). Intracerebral injection of self-assembling HA hydrogel carrying GMSCs-derived neural lineage cells promoted the recovery of neural function and reduced ischemic damage in rats with ischemic stroke, as demonstrated by histological examination and behavioral assessments (all p < 0.05). In conclusion, the SM cocktail significantly enhanced the differentiation of GMSCs into neural lineage cells. The HA hydrogel was found to facilitate the proliferation and differentiation of GMSCs-derived neural lineage cells. Furthermore, HA hydrogel seeded with GMSCs-derived neural lineage cells could promote tissue repair and functional recovery in rats with ischemic stroke and may be a promising alternative treatment modality for stroke.
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Affiliation(s)
- Shan Jiang
- Faculty of Dentistry, Restorative Dental Sciences, The University of Hong Kong, Hong Kong, China
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, Shenzhen, China
| | - Changyong Yuan
- The Affiliated Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ting Zou
- Faculty of Dentistry, Restorative Dental Sciences, The University of Hong Kong, Hong Kong, China
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, Shenzhen, China
| | - Jun Hao Koh
- Faculty of Dentistry, Restorative Dental Sciences, The University of Hong Kong, Hong Kong, China
| | - Mohammed Basabrain
- Faculty of Dentistry, Restorative Dental Sciences, The University of Hong Kong, Hong Kong, China
| | - Qixin Chen
- Faculty of Dentistry, Restorative Dental Sciences, The University of Hong Kong, Hong Kong, China
| | - Junqing Liu
- Faculty of Dentistry, Restorative Dental Sciences, The University of Hong Kong, Hong Kong, China
| | | | - Lee Wei Lim
- Li Ka Shing Faculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| | - Penglai Wang
- The Affiliated Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Chengfei Zhang
- Faculty of Dentistry, Restorative Dental Sciences, The University of Hong Kong, Hong Kong, China
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Najafi H, Farahavar G, Jafari M, Abolmaali SS, Azarpira N, Tamaddon AM. Harnessing the Potential of Self-Assembled Peptide Hydrogels for Neural Regeneration and Tissue Engineering. Macromol Biosci 2024; 24:e2300534. [PMID: 38547473 DOI: 10.1002/mabi.202300534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/04/2024] [Indexed: 04/11/2024]
Abstract
Spinal cord injury, traumatic brain injury, and neurosurgery procedures usually lead to neural tissue damage. Self-assembled peptide (SAP) hydrogels, a type of innovative hierarchical nanofiber-forming peptide sequences serving as hydrogelators, have emerged as a promising solution for repairing tissue defects and promoting neural tissue regeneration. SAPs possess numerous features, such as adaptable morphologies, biocompatibility, injectability, tunable mechanical stability, and mimicking of the native extracellular matrix. This review explores the capacity of neural cell regeneration and examines the critical aspects of SAPs in neuroregeneration, including their biochemical composition, topology, mechanical behavior, conductivity, and degradability. Additionally, it delves into the latest strategies involving SAPs for central or peripheral neural tissue engineering. Finally, the prospects of SAP hydrogel design and development in the realm of neuroregeneration are discussed.
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Affiliation(s)
- Haniyeh Najafi
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Ghazal Farahavar
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Mahboobeh Jafari
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, 71937-11351, Iran
| | - Ali Mohammad Tamaddon
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
- Department of Pharmaceutics, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
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Yaqubi S, Karimian M. Stem cell therapy as a promising approach for ischemic stroke treatment. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2024; 6:100183. [PMID: 38831867 PMCID: PMC11144755 DOI: 10.1016/j.crphar.2024.100183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/23/2024] [Accepted: 05/14/2024] [Indexed: 06/05/2024] Open
Abstract
Ischemia as the most common type of stroke is the main cause of death and disability in the world. However, there are few therapeutic approaches to treat ischemic stroke. The common approach to the treatment of ischemia includes surgery-cum-chemical drugs. Surgery and chemical drugs are used to remove blood clots to prevent the deterioration of the nervous system. Given the surgical hazards and the challenges associated with chemical drugs, these cannot be considered safe approaches to the treatment of brain ischemia. Besides surgery-cum-chemical drugs, different types of stem cells including mesenchymal stem cells and neurological stem cells have been considered to treat ischemic stroke. Therapeutic approaches utilizing stem cells to treat strokes are promising because of their neuroprotective and regenerative benefits. However, the mechanisms by which the transplanted stem cells perform their precisely actions are unknown. The purpose of this study is to critically review stem cell-based therapeutic approaches for ischemia along with related challenges.
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Affiliation(s)
- Sahar Yaqubi
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Mohammad Karimian
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
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Syzdykbayev M, Kazymov M, Aubakirov M, Kurmangazina A, Kairkhanov E, Kazangapov R, Bryzhakhina Z, Imangazinova S, Sheinin A. A Modern Approach to the Treatment of Traumatic Brain Injury. MEDICINES (BASEL, SWITZERLAND) 2024; 11:10. [PMID: 38786549 PMCID: PMC11123131 DOI: 10.3390/medicines11050010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/18/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024]
Abstract
Background: Traumatic brain injury manifests itself in various forms, ranging from mild impairment of consciousness to severe coma and death. Traumatic brain injury remains one of the leading causes of morbidity and mortality. Currently, there is no therapy to reverse the effects associated with traumatic brain injury. New neuroprotective treatments for severe traumatic brain injury have not achieved significant clinical success. Methods: A literature review was performed to summarize the recent interdisciplinary findings on management of traumatic brain injury from both clinical and experimental perspective. Results: In the present review, we discuss the concepts of traditional and new approaches to treatment of traumatic brain injury. The recent development of different drug delivery approaches to the central nervous system is also discussed. Conclusions: The management of traumatic brain injury could be aimed either at the pathological mechanisms initiating the secondary brain injury or alleviating the symptoms accompanying the injury. In many cases, however, the treatment should be complex and include a variety of medical interventions and combination therapy.
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Affiliation(s)
- Marat Syzdykbayev
- Department of Hospital Surgery, Anesthesiology and Reanimatology, Semey Medical University, Semey 071400, Kazakhstan
| | - Maksut Kazymov
- Department of General Practitioners, Semey Medical University, Semey 071400, Kazakhstan
| | - Marat Aubakirov
- Department of Pediatric Surgery, Semey Medical University, Semey 071400, Kazakhstan
| | - Aigul Kurmangazina
- Committee for Medical and Pharmaceutical Control of the Ministry of Health of the Republic of Kazakhstan for East Kazakhstan Region, Ust-Kamenogorsk 070004, Kazakhstan
| | - Ernar Kairkhanov
- Pavlodar Branch of Semey Medical University, Pavlodar S03Y3M1, Kazakhstan
| | - Rustem Kazangapov
- Pavlodar Branch of Semey Medical University, Pavlodar S03Y3M1, Kazakhstan
| | - Zhanna Bryzhakhina
- Department Psychiatry and Narcology, Semey Medical University, Semey 071400, Kazakhstan
| | - Saule Imangazinova
- Department of Therapy, Astana Medical University, Astana 010000, Kazakhstan
| | - Anton Sheinin
- Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv 69978, Israel
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6
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Wu X, Zhang T, Jia J, Chen Y, Zhang Y, Fang Z, Zhang C, Bai Y, Li Z, Li Y. Perspective insights into versatile hydrogels for stroke: From molecular mechanisms to functional applications. Biomed Pharmacother 2024; 173:116309. [PMID: 38479180 DOI: 10.1016/j.biopha.2024.116309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/13/2024] [Accepted: 02/17/2024] [Indexed: 03/27/2024] Open
Abstract
As the leading killer of life and health, stroke leads to limb paralysis, speech disorder, dysphagia, cognitive impairment, mental depression and other symptoms, which entail a significant financial burden to society and families. At present, physiology, clinical medicine, engineering, and materials science, advanced biomaterials standing on the foothold of these interdisciplinary disciplines provide new opportunities and possibilities for the cure of stroke. Among them, hydrogels have been endowed with more possibilities. It is well-known that hydrogels can be employed as potential biosensors, medication delivery vectors, and cell transporters or matrices in tissue engineering in tissue engineering, and outperform many traditional therapeutic drugs, surgery, and materials. Therefore, hydrogels become a popular scaffolding treatment option for stroke. Diverse synthetic hydrogels were designed according to different pathophysiological mechanisms from the recently reported literature will be thoroughly explored. The biological uses of several types of hydrogels will be highlighted, including pro-angiogenesis, pro-neurogenesis, anti-oxidation, anti-inflammation and anti-apoptosis. Finally, considerations and challenges of using hydrogels in the treatment of stroke are summarized.
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Affiliation(s)
- Xinghan Wu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Tiejun Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jing Jia
- Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Yining Chen
- Key laboratory for Leather Chemistry and Engineering of the Education Ministry, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ying Zhang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhenwei Fang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chenyu Zhang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yang Bai
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhengjun Li
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Yuwen Li
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
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7
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Li Y, Li P, Tao Q, Abuqeis IJA, Xiyang Y. Role and limitation of cell therapy in treating neurological diseases. IBRAIN 2024; 10:93-105. [PMID: 38682022 PMCID: PMC11045202 DOI: 10.1002/ibra.12152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/01/2024] [Accepted: 03/01/2024] [Indexed: 05/01/2024]
Abstract
The central role of the brain in governing systemic functions within human physiology underscores its paramount significance as the focal point of physiological regulation. The brain, a highly sophisticated organ, orchestrates a diverse array of physiological processes encompassing motor control, sensory perception, cognition, emotion, and the regulation of vital functions, such as heartbeat, respiration, and hormonal equilibrium. A notable attribute of neurological diseases manifests as the depletion of neurons and the occurrence of tissue necrosis subsequent to injury. The transplantation of neural stem cells (NSCs) into the brain exhibits the potential for the replacement of lost neurons and the reconstruction of neural circuits. Furthermore, the transplantation of other types of cells in alternative locations can secrete nutritional factors that indirectly contribute to the restoration of nervous system equilibrium and the mitigation of neural inflammation. This review summarized a comprehensive investigation into the role of NSCs, hematopoietic stem cells, mesenchymal stem cells, and support cells like astrocytes and microglia in alleviating neurological deficits after cell infusion. Moreover, a thorough assessment was undertaken to discuss extant constraints in cellular transplantation therapies, concurrently delineating indispensable model-based methodologies, specifically on organoids, which were essential for guiding prospective research initiatives in this specialized field.
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Affiliation(s)
- Yu‐Qi Li
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingChina
| | - Peng‐Fei Li
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingChina
| | - Qian Tao
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingChina
| | | | - Yan‐Bin Xiyang
- School of Basic MedicineKunming Medical UniversityKunmingChina
- Department of Pharmacology and Toxicology, College of PharmacologyUniversity of ArizonaTucsonArizonaUSA
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8
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Dennison NR, Fusenig M, Grönnert L, Maitz MF, Ramirez Martinez MA, Wobus M, Freudenberg U, Bornhäuser M, Friedrichs J, Westenskow PD, Werner C. Precision Culture Scaling to Establish High-Throughput Vasculogenesis Models. Adv Healthc Mater 2024:e2400388. [PMID: 38465502 DOI: 10.1002/adhm.202400388] [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: 02/21/2024] [Indexed: 03/12/2024]
Abstract
Hydrogel-based 3D cell cultures can recapitulate (patho)physiological phenomena ex vivo. However, due to their complex multifactorial regulation, adapting these tissue and disease models for high-throughput screening workflows remains challenging. In this study, a new precision culture scaling (PCS-X) methodology combines statistical techniques (design of experiment and multiple linear regression) with automated, parallelized experiments and analyses to customize hydrogel-based vasculogenesis cultures using human umbilical vein endothelial cells and retinal microvascular endothelial cells. Variations of cell density, growth factor supplementation, and media composition are systematically explored to induce vasculogenesis in endothelial mono- and cocultures with mesenchymal stromal cells or retinal microvascular pericytes in 384-well plate formats. The developed cultures are shown to respond to vasculogenesis inhibitors in a compound- and dose-dependent manner, demonstrating the scope and power of PCS-X in creating parallelized tissue and disease models for drug discovery and individualized therapies.
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Affiliation(s)
- Nicholas R Dennison
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069, Dresden, Germany
| | - Maximilian Fusenig
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069, Dresden, Germany
- Medical Clinic I, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307, Dresden, Germany
| | - Lisa Grönnert
- Ocular Technologies, Immunology, Infectious Diseases and Ophthalmology, Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, 4070, Switzerland
| | - Manfred F Maitz
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069, Dresden, Germany
| | | | - Manja Wobus
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069, Dresden, Germany
| | - Uwe Freudenberg
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069, Dresden, Germany
| | - Martin Bornhäuser
- Medical Clinic I, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307, Dresden, Germany
| | - Jens Friedrichs
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069, Dresden, Germany
| | - Peter D Westenskow
- Ocular Technologies, Immunology, Infectious Diseases and Ophthalmology, Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, 4070, Switzerland
| | - Carsten Werner
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069, Dresden, Germany
- Medical Clinic I, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307, Dresden, Germany
- Center for Regenerative Therapies Dresden and Cluster of Excellence Physics of Life, Technische Universität Dresden, 01307, Dresden, Germany
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9
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Doulames VM, Marquardt LM, Hefferon ME, Baugh NJ, Suhar RA, Wang AT, Dubbin KR, Weimann JM, Palmer TD, Plant GW, Heilshorn SC. Custom-engineered hydrogels for delivery of human iPSC-derived neurons into the injured cervical spinal cord. Biomaterials 2024; 305:122400. [PMID: 38134472 PMCID: PMC10846596 DOI: 10.1016/j.biomaterials.2023.122400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/18/2023] [Accepted: 11/11/2023] [Indexed: 12/24/2023]
Abstract
Cervical damage is the most prevalent type of spinal cord injury clinically, although few preclinical research studies focus on this anatomical region of injury. Here we present a combinatorial therapy composed of a custom-engineered, injectable hydrogel and human induced pluripotent stem cell (iPSC)-derived deep cortical neurons. The biomimetic hydrogel has a modular design that includes a protein-engineered component to allow customization of the cell-adhesive peptide sequence and a synthetic polymer component to allow customization of the gel mechanical properties. In vitro studies with encapsulated iPSC-neurons were used to select a bespoke hydrogel formulation that maintains cell viability and promotes neurite extension. Following injection into the injured cervical spinal cord in a rat contusion model, the hydrogel biodegraded over six weeks without causing any adverse reaction. Compared to cell delivery using saline, the hydrogel significantly improved the reproducibility of cell transplantation and integration into the host tissue. Across three metrics of animal behavior, this combinatorial therapy significantly improved sensorimotor function by six weeks post transplantation. Taken together, these findings demonstrate that design of a combinatorial therapy that includes a gel customized for a specific fate-restricted cell type can induce regeneration in the injured cervical spinal cord.
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Affiliation(s)
- V M Doulames
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - L M Marquardt
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - M E Hefferon
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - N J Baugh
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - R A Suhar
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - A T Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - K R Dubbin
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - J M Weimann
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - T D Palmer
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - G W Plant
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - S C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
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10
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Shan BH, Wu FG. Hydrogel-Based Growth Factor Delivery Platforms: Strategies and Recent Advances. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2210707. [PMID: 37009859 DOI: 10.1002/adma.202210707] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/25/2023] [Indexed: 06/19/2023]
Abstract
Growth factors play a crucial role in regulating a broad variety of biological processes and are regarded as powerful therapeutic agents in tissue engineering and regenerative medicine in the past decades. However, their application is limited by their short half-lives and potential side effects in physiological environments. Hydrogels are identified as having the promising potential to prolong the half-lives of growth factors and mitigate their adverse effects by restricting them within the matrix to reduce their rapid proteolysis, burst release, and unwanted diffusion. This review discusses recent progress in the development of growth factor-containing hydrogels for various biomedical applications, including wound healing, brain tissue repair, cartilage and bone regeneration, and spinal cord injury repair. In addition, the review introduces strategies for optimizing growth factor release including affinity-based delivery, carrier-assisted delivery, stimuli-responsive delivery, spatial structure-based delivery, and cellular system-based delivery. Finally, the review presents current limitations and future research directions for growth factor-delivering hydrogels.
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Affiliation(s)
- Bai-Hui Shan
- State Key Laboratory of Digital Medical Engineering Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Fu-Gen Wu
- State Key Laboratory of Digital Medical Engineering Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
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11
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Giorgi Z, Veneruso V, Petillo E, Veglianese P, Perale G, Rossi F. Biomaterials and Cell Therapy Combination in Central Nervous System Treatments. ACS APPLIED BIO MATERIALS 2024; 7:80-98. [PMID: 38158393 PMCID: PMC10792669 DOI: 10.1021/acsabm.3c01058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Abstract
Current pharmacological and surgical therapies for the central nervous system (CNS) show a limited capacity to reduce the damage progression; that together with the intrinsic limited capability of the CNS to regenerate greatly reduces the hopes of recovery. Among all the therapies proposed, the tissue engineering strategies supplemented with therapeutic stem cells remain the most promising. Neural tissue engineering strategies are based on the development of devices presenting optimal physical, chemical, and mechanical properties which, once inserted in the injured site, can support therapeutic cells, limiting the effect of a hostile environment and supporting regenerative processes. Thus, this review focuses on the employment of hydrogel and nanofibrous scaffolds supplemented with stem cells as promising therapeutic tools for the central and peripheral nervous systems in preclinical and clinical applications.
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Affiliation(s)
- Zoe Giorgi
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, piazza Leonardo da Vinci 32, 20133, Milan, Italy
| | - Valeria Veneruso
- Istituto
di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy
- Faculty
of Biomedical Sciences, University of Southern
Switzerland (USI), Via
Buffi 13, 6900 Lugano, Switzerland
| | - Emilia Petillo
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, piazza Leonardo da Vinci 32, 20133, Milan, Italy
- Istituto
di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy
| | - Pietro Veglianese
- Istituto
di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy
- Faculty
of Biomedical Sciences, University of Southern
Switzerland (USI), Via
Buffi 13, 6900 Lugano, Switzerland
| | - Giuseppe Perale
- Faculty
of Biomedical Sciences, University of Southern
Switzerland (USI), Via
Buffi 13, 6900 Lugano, Switzerland
- Ludwig
Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Filippo Rossi
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, piazza Leonardo da Vinci 32, 20133, Milan, Italy
- Faculty
of Biomedical Sciences, University of Southern
Switzerland (USI), Via
Buffi 13, 6900 Lugano, Switzerland
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12
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Marques-Almeida T, Lanceros-Mendez S, Ribeiro C. State of the Art and Current Challenges on Electroactive Biomaterials and Strategies for Neural Tissue Regeneration. Adv Healthc Mater 2024; 13:e2301494. [PMID: 37843074 DOI: 10.1002/adhm.202301494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/22/2023] [Indexed: 10/17/2023]
Abstract
The loss or failure of an organ/tissue stands as one of the healthcare system's most prevalent, devastating, and costly challenges. Strategies for neural tissue repair and regeneration have received significant attention due to their particularly strong impact on patients' well-being. Many research efforts are dedicated not only to control the disease symptoms but also to find solutions to repair the damaged tissues. Neural tissue engineering (TE) plays a key role in addressing this problem and significant efforts are being carried out to develop strategies for neural repair treatment. In the last years, active materials allowing to tune cell-materials interaction are being increasingly used, representing a recent paradigm in TE applications. Among the most important stimuli influencing cell behavior are the electrical and mechanical ones. In this way, materials with the ability to provide this kind of stimuli to the neural cells seem to be appropriate to support neural TE. In this scope, this review summarizes the different biomaterials types used for neural TE, highlighting the relevance of using active biomaterials and electrical stimulation. Furthermore, this review provides not only a compilation of the most relevant studies and results but also strategies for novel and more biomimetic approaches for neural TE.
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Affiliation(s)
- Teresa Marques-Almeida
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga, 4710-057, Portugal
- LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, 4710-057, Portugal
| | - Senentxu Lanceros-Mendez
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga, 4710-057, Portugal
- LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, 4710-057, Portugal
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, 48940, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Clarisse Ribeiro
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga, 4710-057, Portugal
- LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, 4710-057, Portugal
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13
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Aqel S, Al-Thani N, Haider MZ, Abdelhady S, Al Thani AA, Kobeissy F, Shaito AA. Biomaterials in Traumatic Brain Injury: Perspectives and Challenges. BIOLOGY 2023; 13:21. [PMID: 38248452 PMCID: PMC10813103 DOI: 10.3390/biology13010021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 01/23/2024]
Abstract
Traumatic brain injury (TBI) is a leading cause of mortality and long-term impairment globally. TBI has a dynamic pathology, encompassing a variety of metabolic and molecular events that occur in two phases: primary and secondary. A forceful external blow to the brain initiates the primary phase, followed by a secondary phase that involves the release of calcium ions (Ca2+) and the initiation of a cascade of inflammatory processes, including mitochondrial dysfunction, a rise in oxidative stress, activation of glial cells, and damage to the blood-brain barrier (BBB), resulting in paracellular leakage. Currently, there are no FDA-approved drugs for TBI, but existing approaches rely on delivering micro- and macromolecular treatments, which are constrained by the BBB, poor retention, off-target toxicity, and the complex pathology of TBI. Therefore, there is a demand for innovative and alternative therapeutics with effective delivery tactics for the diagnosis and treatment of TBI. Tissue engineering, which includes the use of biomaterials, is one such alternative approach. Biomaterials, such as hydrogels, including self-assembling peptides and electrospun nanofibers, can be used alone or in combination with neuronal stem cells to induce neurite outgrowth, the differentiation of human neural stem cells, and nerve gap bridging in TBI. This review examines the inclusion of biomaterials as potential treatments for TBI, including their types, synthesis, and mechanisms of action. This review also discusses the challenges faced by the use of biomaterials in TBI, including the development of biodegradable, biocompatible, and mechanically flexible biomaterials and, if combined with stem cells, the survival rate of the transplanted stem cells. A better understanding of the mechanisms and drawbacks of these novel therapeutic approaches will help to guide the design of future TBI therapies.
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Affiliation(s)
- Sarah Aqel
- Medical Research Center, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar
| | - Najlaa Al-Thani
- Research and Development Department, Barzan Holdings, Doha P.O. Box 7178, Qatar
| | - Mohammad Z. Haider
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Samar Abdelhady
- Faculty of Medicine, Alexandria University, Alexandria 21544, Egypt;
| | - Asmaa A. Al Thani
- Biomedical Research Center and Department of Biomedical Sciences, College of Health Science, QU Health, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Firas Kobeissy
- Department of Neurobiology, Center for Neurotrauma, Multiomics & Biomarkers (CNMB), Morehouse School of Medicine, 720 Westview Dr. SW, Atlanta, GA 30310, USA
| | - Abdullah A. Shaito
- Biomedical Research Center, Department of Biomedical Sciences at College of Health Sciences, College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar
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14
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Sarma S, Deka DJ, Rajak P, Laloo D, Das T, Chetia P, Saha D, Bharali A, Deka B. Potential injectable hydrogels as biomaterials for central nervous system injury: A narrative review. IBRAIN 2023; 9:402-420. [PMID: 38680508 PMCID: PMC11045191 DOI: 10.1002/ibra.12137] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 05/01/2024]
Abstract
Numerous modalities exist through which the central nervous system (CNS) may sustain injury or impairment, encompassing traumatic incidents, stroke occurrences, and neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. Presently available pharmacological and therapeutic interventions are incapable of restoring or regenerating damaged CNS tissue, leading to substantial unmet clinical needs among patients with CNS ailments or injuries. To address and facilitate the recovery of the impaired CNS, cell-based repair strategies encompass multiple mechanisms, such as neuronal replacement, therapeutic factor secretion, and the promotion of host brain plasticity. Despite the progression of cell-based CNS reparation as a therapeutic strategy throughout the years, substantial barriers have impeded its widespread implementation in clinical settings. The integration of cell technologies with advancements in regenerative medicine utilizing biomaterials and tissue engineering has recently facilitated the surmounting of several of these impediments. This comprehensive review presents an overview of distinct CNS conditions necessitating cell reparation, in addition to exploring potential biomaterial methodologies that enhance the efficacy of treating brain injuries.
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Affiliation(s)
- Santa Sarma
- Girijananda Chowdhury Institute of Pharmaceutical ScienceAssam Science and Technology UniversityGuwahatiAssamIndia
| | - Dhruva J. Deka
- Girijananda Chowdhury Institute of Pharmaceutical ScienceAssam Science and Technology UniversityGuwahatiAssamIndia
| | - Prakash Rajak
- Department of Pharmaceutical SciencesDibrugarh UniversityDibrugarhAssamIndia
| | - Damiki Laloo
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Trishna Das
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Purbajit Chetia
- Department of PharmacologyNETES Institute of Pharmaceutical Science, Nemcare Group of Institutes, MirzaGuwahatiAssamIndia
| | - Dipankar Saha
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Alakesh Bharali
- Department of Pharmaceutical SciencesDibrugarh UniversityDibrugarhAssamIndia
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Bhargab Deka
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
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15
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Wang Z, Zheng D, Tan YS, Yuan Q, Yuan F, Zhang S. Enabling Survival of Transplanted Neural Precursor Cells in the Ischemic Brain. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302527. [PMID: 37867250 PMCID: PMC10667812 DOI: 10.1002/advs.202302527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/24/2023] [Indexed: 10/24/2023]
Abstract
There is no effective therapy for ischemic stroke following the acute stage. Neural transplantation offers a potential option for repairing the ischemic lesion. However, this strategy is hindered by the poor survival of the neural precursor cells (NPCs) that are transplanted into the inflammatory ischemic core. Here, a chemical cocktail consisting of fibrinogen and maraviroc is developed to promote the survival of the transplanted NPCs in the ischemic core of the mouse cerebral cortex. The grafted NPCs survive in the presence of the cocktail but not fibrinogen or maraviroc alone at day 7. The surviving NPCs divide and differentiate to mature neurons by day 30, reconstituting the infarct cortex with vascularization. Molecular analysis in vivo and in vitro shows that blocking the activation of CCR5 on the NPCs protects the NPCs from apoptosis induced by pro-inflammatory factors, revealing the underlying protective effect of the cocktail for NPCs. The findings open an avenue to enable survival of the transplanted NPCs under the inflammatory neurological conditions like stroke.
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Affiliation(s)
- Zhifu Wang
- Program in Neuroscience & Behavioral Disorders, GK Goh Centre for NeuroscienceDuke‐NUS Medical SchoolSingapore169857Singapore
| | - Danyi Zheng
- Program in Neuroscience & Behavioral Disorders, GK Goh Centre for NeuroscienceDuke‐NUS Medical SchoolSingapore169857Singapore
| | - Ye Sing Tan
- Program in Neuroscience & Behavioral Disorders, GK Goh Centre for NeuroscienceDuke‐NUS Medical SchoolSingapore169857Singapore
| | - Qiang Yuan
- Program in Neuroscience & Behavioral Disorders, GK Goh Centre for NeuroscienceDuke‐NUS Medical SchoolSingapore169857Singapore
| | - Fang Yuan
- Program in Neuroscience & Behavioral Disorders, GK Goh Centre for NeuroscienceDuke‐NUS Medical SchoolSingapore169857Singapore
| | - Su‐Chun Zhang
- Program in Neuroscience & Behavioral Disorders, GK Goh Centre for NeuroscienceDuke‐NUS Medical SchoolSingapore169857Singapore
- Department of NeuroscienceDepartment of NeurologyWaisman CenterUniversity of Wisconsin‐MadisonMadisonWI53705USA
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16
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Liu Z, Zhang S, Ran Y, Geng H, Gao F, Tian G, Feng Z, Xi J, Ye L, Su W. Nanoarchitectonics of tannic acid based injectable hydrogel regulate the microglial phenotype to enhance neuroplasticity for poststroke rehabilitation. Biomater Res 2023; 27:108. [PMID: 37908012 PMCID: PMC10617113 DOI: 10.1186/s40824-023-00444-0] [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: 08/13/2023] [Accepted: 10/08/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Stroke is the second leading cause of mortality and disability worldwide. Poststroke rehabilitation is still unsatisfactory in clinics, which brings great pain and economic burdens to stroke patients. In this study, an injectable hydrogel in which tannic acid (TA) acts as not only a building block but also a therapeutic drug, was developed for poststroke rehabilitation. METHODS TA is used as a building block to form an injectable hydrogel (TA gel) with carboxymethyl chitosan (CMCS) by multivalent hydrogen bonds. The morphology, rheological properties, and TA release behavior of the hydrogel were characterized. The abilities of the TA gel to modulate microglial (BV2 cells) polarization and subsequently enhance the neuroplasticity of neuro cells (N2a cells) were assessed in vitro. The TA gel was injected into the cavity of stroke mice to evaluate motor function recovery, microglial polarization, and neuroplasticity in vivo. The molecular pathway through which TA modulates microglial polarization was also explored both in vitro and in vivo. RESULTS The TA gel exhibited sustainable release behavior of TA. The TA gel can suppress the expression of CD16 and IL-1β, and upregulate the expression of CD206 and TGF-β in oxygen and glucose-deprived (OGD) BV2 cells, indicating the regulation of OGD BV2 cells to an anti-inflammatory phenotype in vitro. This finding further shows that the decrease in synaptophysin and PSD95 in OGD N2a cells is effectively recovered by anti-inflammatory BV2 cells. Furthermore, the TA gel decreased CD16/iNOS expression and increased CD206 expression in the peri-infarct area of stroke mice, implying anti-inflammatory polarization of microglia in vivo. The colocalization of PSD95 and Vglut1 stains, as well as Golgi staining, showed the enhancement of neuroplasticity by the TA gel. Spontaneously, the TA gel successfully recovered the motor function of stroke mice. The western blot results in vitro and in vivo suggested that the TA gel regulated microglial polarization via the NF-κB pathway. CONCLUSION The TA gel serves as an effective brain injectable implant to treat stroke and shows promising potential to promote poststroke rehabilitation in the clinic.
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Affiliation(s)
- Zongjian Liu
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, 100144, China
| | - Shulei Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yuanyuan Ran
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, 100144, China
| | - Huimin Geng
- Department of Neurosurgery, Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, 250012, China.
| | - Fuhai Gao
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, 100144, China
| | - Guiqin Tian
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, 100144, China
| | - Zengguo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Jianing Xi
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, 100144, China
| | - Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.
| | - Wei Su
- Beijing Tsinghua Chang Gung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China.
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Nicosia A, Salamone M, Costa S, Ragusa MA, Ghersi G. Mimicking Molecular Pathways in the Design of Smart Hydrogels for the Design of Vascularized Engineered Tissues. Int J Mol Sci 2023; 24:12314. [PMID: 37569691 PMCID: PMC10418696 DOI: 10.3390/ijms241512314] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/21/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Biomaterials are pivotal in supporting and guiding vascularization for therapeutic applications. To design effective, bioactive biomaterials, understanding the cellular and molecular processes involved in angiogenesis and vasculogenesis is crucial. Biomaterial platforms can replicate the interactions between cells, the ECM, and the signaling molecules that trigger blood vessel formation. Hydrogels, with their soft and hydrated properties resembling natural tissues, are widely utilized; particularly synthetic hydrogels, known for their bio-inertness and precise control over cell-material interactions, are utilized. Naturally derived and synthetic hydrogel bases are tailored with specific mechanical properties, controlled for biodegradation, and enhanced for cell adhesion, appropriate biochemical signaling, and architectural features that facilitate the assembly and tubulogenesis of vascular cells. This comprehensive review showcases the latest advancements in hydrogel materials and innovative design modifications aimed at effectively guiding and supporting vascularization processes. Furthermore, by leveraging this knowledge, researchers can advance biomaterial design, which will enable precise support and guidance of vascularization processes and ultimately enhance tissue functionality and therapeutic outcomes.
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Affiliation(s)
- Aldo Nicosia
- Institute for Biomedical Research and Innovation-National Research Council (IRIB-CNR), Via Ugo la Malfa 153, 90146 Palermo, Italy;
| | - Monica Salamone
- Institute for Biomedical Research and Innovation-National Research Council (IRIB-CNR), Via Ugo la Malfa 153, 90146 Palermo, Italy;
| | - Salvatore Costa
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
| | - Maria Antonietta Ragusa
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
| | - Giulio Ghersi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
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18
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Kim JT, Cho SM, Youn DH, Hong EP, Park CH, Lee Y, Jung H, Jeon JP. Therapeutic Effect of a Hydrogel-based Neural Stem Cell Delivery Sheet for Mild Traumatic Brain Injury. Acta Biomater 2023:S1742-7061(23)00351-3. [PMID: 37356785 DOI: 10.1016/j.actbio.2023.06.027] [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: 01/02/2023] [Revised: 06/18/2023] [Accepted: 06/20/2023] [Indexed: 06/27/2023]
Abstract
OBJECTIVE There are no effective clinically applicable treatments for neuronal dysfunction after mild traumatic brain injury (TBI). Here, we evaluated the therapeutic effect of a new delivery method of mouse neural stem cell (mNSC) spheroids using a hydrogel, in terms of improvement in damaged cortical lesions and cognitive impairment after mild TBI. METHODS mNSCs were isolated from the subventricular zone and subgranular zone by a hydrogel-based culture system. GFP-transduced mNSCs were generated into spheroids and wrapped into a sheet for transplantation. Male C57BL/6J mice were randomly divided into four groups: sham operation, TBI, TBI with mNSC spheroids, and TBI with mNSC spheroid sheet transplantation covering the damaged cortex. Histopathological and immunohistochemical features and cognitive function were evaluated 7, 14, and 28 days after transplantation following TBI. RESULTS Hydrogel-based culture systems and mNSC isolation were successfully established from the adult mice. Essential transcription factors for NSCs, such as SOX2, PAX6, Olig2, nestin, and doublecortin (DCX), were highly expressed in the mNSCs. A transplanted hydrogel-based mNSC spheroid sheet showed good engraftment and survival ability, differentiated into TUJ1-positive neurons, promoted angiogenesis, and reduced neuronal degeneration. Also, TBI mice treated with mNSC spheroid sheet transplantation exhibited a significantly increased preference for a new object, suggesting improved cognitive function compared to the mNSC spheroids or no treatment groups. CONCLUSION Transplantation with a hydrogel-based mNSC spheroid sheet showed engraftment, migration, and stability of delivered cells in a hostile microenvironment after TBI, resulting in improved cognitive function via reconstruction of the damaged cortex. STATEMENT OF SIGNIFICANCE This study presents the therapeutic effect of a new delivery method of mouse neural stem cells spheroids using a hydrogel, in terms of improvement in damaged cortical lesions and cognitive impairment after traumatic brain injury. Collagen/fibrin hydrogel allowed long-term survival and migratory ability of NSCs spheroids. Furthermore, transplanted hydrogel-based mNSCs spheroids sheet showed good engraftment, migration, and stability of delivered cells in a hostile microenvironment, resulting in reconstruction of the damaged cortex and improved cognitive function after TBI. Therefore, we suggest that a hydrogel-based mNSCs spheroids sheet could help to improve cognitive impairment after TBI.
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Affiliation(s)
- Jong-Tae Kim
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Sung Min Cho
- Department of Neurosurgery, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Dong Hyuk Youn
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Eun Pyo Hong
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Chan Hum Park
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Younghyurk Lee
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Harry Jung
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Jin Pyeong Jeon
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea.
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Villanueva-Flores F, Garcia-Atutxa I, Santos A, Armendariz-Borunda J. Toward a New Generation of Bio-Scaffolds for Neural Tissue Engineering: Challenges and Perspectives. Pharmaceutics 2023; 15:1750. [PMID: 37376198 DOI: 10.3390/pharmaceutics15061750] [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: 05/09/2023] [Revised: 06/04/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Neural tissue engineering presents a compelling technological breakthrough in restoring brain function, holding immense promise. However, the quest to develop implantable scaffolds for neural culture that fulfill all necessary criteria poses a remarkable challenge for material science. These materials must possess a host of desirable characteristics, including support for cellular survival, proliferation, and neuronal migration and the minimization of inflammatory responses. Moreover, they should facilitate electrochemical cell communication, display mechanical properties akin to the brain, emulate the intricate architecture of the extracellular matrix, and ideally allow the controlled release of substances. This comprehensive review delves into the primary requisites, limitations, and prospective avenues for scaffold design in brain tissue engineering. By offering a panoramic overview, our work aims to serve as an essential resource, guiding the creation of materials endowed with bio-mimetic properties, ultimately revolutionizing the treatment of neurological disorders by developing brain-implantable scaffolds.
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Affiliation(s)
- Francisca Villanueva-Flores
- Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Campus Chihuahua, Av. Heroico Colegio Militar 4700, Nombre de Dios, Chihuahua 31300, Chihuahua, Mexico
| | - Igor Garcia-Atutxa
- Máster en Bioinformática y Bioestadística, Universitat Oberta de Catalunya, Rambla del Poblenou, 156, 08018 Barcelona, Spain
| | - Arturo Santos
- Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Campus Guadalajara, Av. Gral Ramón Corona No 2514, Colonia Nuevo México, Zapopan 45201, Jalisco, Mexico
| | - Juan Armendariz-Borunda
- Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Campus Guadalajara, Av. Gral Ramón Corona No 2514, Colonia Nuevo México, Zapopan 45201, Jalisco, Mexico
- Instituto de Biología Molecular en Medicina y Terapia Génica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Independencia Oriente, Guadalajara 44340, Jalisco, Mexico
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20
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Hasanzadeh E, Seifalian A, Mellati A, Saremi J, Asadpour S, Enderami SE, Nekounam H, Mahmoodi N. Injectable hydrogels in central nervous system: Unique and novel platforms for promoting extracellular matrix remodeling and tissue engineering. Mater Today Bio 2023; 20:100614. [PMID: 37008830 PMCID: PMC10050787 DOI: 10.1016/j.mtbio.2023.100614] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/23/2023] [Accepted: 03/16/2023] [Indexed: 04/04/2023] Open
Abstract
Repairing central nervous system (CNS) is difficult due to the inability of neurons to recover after damage. A clinically acceptable treatment to promote CNS functional recovery and regeneration is currently unavailable. According to recent studies, injectable hydrogels as biodegradable scaffolds for CNS tissue engineering and regeneration have exceptionally desirable attributes. Hydrogel has a biomimetic structure similar to extracellular matrix, hence has been considered a 3D scaffold for CNS regeneration. An interesting new type of hydrogel, injectable hydrogels, can be injected into target areas with little invasiveness and imitate several aspects of CNS. Injectable hydrogels are being researched as therapeutic agents because they may imitate numerous properties of CNS tissues and hence reduce subsequent injury and regenerate neural tissue. Because of their less adverse effects and cost, easier use and implantation with less pain, and faster regeneration capacity, injectable hydrogels, are more desirable than non-injectable hydrogels. This article discusses the pathophysiology of CNS and the use of several kinds of injectable hydrogels for brain and spinal cord tissue engineering, paying particular emphasis to recent experimental studies.
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Affiliation(s)
- Elham Hasanzadeh
- Immunogenetics Research Center, Department of Tissue Engineering & Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Corresponding author. School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Valie-Asr Boulevard, Sari, Mazandaran, Iran.
| | - Alexander Seifalian
- Nanotechnology & Regenerative Medicine Commercialisation Centre (NanoRegMed Ltd, Nanoloom Ltd, & Liberum Health Ltd), London BioScience Innovation Centre, 2 Royal College Street, London, UK
| | - Amir Mellati
- Department of Tissue Engineering & Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Jamileh Saremi
- Research Center for Noncommunicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Shiva Asadpour
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Seyed Ehsan Enderami
- Immunogenetics Research Center, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Houra Nekounam
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Narges Mahmoodi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Corresponding author. Sina Trauma and Surgery Research Center, Sina Hospital, Tehran University of Medical Sciences, Hasan-Abad Square, Imam Khomeini Ave., Tehran, 11365-3876, Iran.
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21
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Adhikari B, Stager MA, Krebs MD. Cell-instructive biomaterials in tissue engineering and regenerative medicine. J Biomed Mater Res A 2023; 111:660-681. [PMID: 36779265 DOI: 10.1002/jbm.a.37510] [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: 10/16/2022] [Revised: 01/16/2023] [Accepted: 01/29/2023] [Indexed: 02/14/2023]
Abstract
The field of biomaterials aims to improve regenerative outcomes or scientific understanding for a wide range of tissue types and ailments. Biomaterials can be fabricated from natural or synthetic sources and display a plethora of mechanical, electrical, and geometrical properties dependent on their desired application. To date, most biomaterial systems designed for eventual translation to the clinic rely on soluble signaling moieties, such as growth factors, to elicit a specific cellular response. However, these soluble factors are often limited by high cost, convoluted synthesis, low stability, and difficulty in regulation, making the translation of these biomaterials systems to clinical or commercial applications a long and arduous process. In response to this, significant effort has been dedicated to researching cell-directive biomaterials which can signal for specific cell behavior in the absence of soluble factors. Cells of all tissue types have been shown to be innately in tune with their microenvironment, which is a biological phenomenon that can be exploited by researchers to design materials that direct cell behavior based on their intrinsic characteristics. This review will focus on recent developments in biomaterials that direct cell behavior using biomaterial properties such as charge, peptide presentation, and micro- or nano-geometry. These next generation biomaterials could offer significant strides in the development of clinically relevant medical devices which improve our understanding of the cellular microenvironment and enhance patient care in a variety of ailments.
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Affiliation(s)
- Bikram Adhikari
- Quantitative Biosciences and Engineering, Colorado School of Mines, Golden, Colorado, USA
| | - Michael A Stager
- Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado, USA
| | - Melissa D Krebs
- Quantitative Biosciences and Engineering, Colorado School of Mines, Golden, Colorado, USA
- Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado, USA
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22
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Ho MT, Ortin-Martinez A, Yan NE, Comanita L, Gurdita A, Pham Truong V, Cui H, Wallace VA, Shoichet MS. Hydrogel assisted photoreceptor delivery inhibits material transfer. Biomaterials 2023; 298:122140. [PMID: 37163876 DOI: 10.1016/j.biomaterials.2023.122140] [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: 01/24/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/12/2023]
Abstract
Cell therapy holds tremendous promise for vision restoration; yet donor cell survival and integration continue to limit efficacy of these strategies. Transplanted photoreceptors, which mediate light sensitivity in the retina, transfer cytoplasmic components to host photoreceptors instead of integrating into the tissue. Donor cell material transfer could, therefore, function as a protein augmentation strategy to restore photoreceptor function. Biomaterials, such as hyaluronan-based hydrogels, can support donor cell survival but have not been evaluated for effects on material transfer. With increased survival, we hypothesized that we would achieve greater material transfer; however, the opposite occurred. Photoreceptors delivered to the subretinal space in mice in a hyaluronan and methylcellulose (HAMC) hydrogel showed reduced material transfer. We examined mitochondria transfer in vitro and cytosolic protein transfer in vivo and demonstrate that HAMC significantly reduced transfer in both contexts, which we ascribe to reduced cell-cell contact. Nanotube-like donor cell protrusions were significantly reduced in the hydrogel-transplanted photoreceptors compared to the saline control group, which suggests that HAMC limits the contact required to the host retina for transfer. Thus, HAMC can be used to manipulate the behaviour of transplanted donor cells in cell therapy strategies.
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Affiliation(s)
- Margaret T Ho
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada; Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Arturo Ortin-Martinez
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Nicole E Yan
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Lacrimioara Comanita
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Akshay Gurdita
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Victor Pham Truong
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Hong Cui
- Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Valerie A Wallace
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.
| | - Molly S Shoichet
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada; Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada; Department of Chemistry, University of Toronto, Toronto, Ontario, Canada.
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23
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Said M, Tavakoli C, Dumot C, Toupet K, Dong YC, Collomb N, Auxenfans C, Moisan A, Favier B, Chovelon B, Barbier EL, Jorgensen C, Cormode DP, Noël D, Brun E, Elleaume H, Wiart M, Detante O, Rome C, Auzély-Velty R. A novel injectable radiopaque hydrogel with potent properties for multicolor CT imaging in the context of brain and cartilage regenerative therapy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.20.537520. [PMID: 37131613 PMCID: PMC10153246 DOI: 10.1101/2023.04.20.537520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Cell therapy is promising to treat many conditions, including neurological and osteoarticular diseases. Encapsulation of cells within hydrogels facilitates cell delivery and can improve therapeutic effects. However, much work remains to be done to align treatment strategies with specific diseases. The development of imaging tools that enable monitoring cells and hydrogel independently is key to achieving this goal. Our objective herein is to longitudinally study an iodine-labeled hydrogel, incorporating gold-labeled stem cells, by bicolor CT imaging after in vivo injection in rodent brains or knees. To this aim, an injectable self-healing hyaluronic acid (HA) hydrogel with long-persistent radiopacity was formed by the covalent grafting of a clinical contrast agent on HA. The labeling conditions were tuned to achieve sufficient X-ray signal and to maintain the mechanical and self-healing properties as well as injectability of the original HA scaffold. The efficient delivery of both cells and hydrogel at the targeted sites was demonstrated by synchrotron K-edge subtraction-CT. The iodine labeling enabled to monitor the hydrogel biodistribution in vivo up to 3 days post-administration, which represents a technological first in the field of molecular CT imaging agents. This tool may foster the translation of combined cell-hydrogel therapies into the clinics.
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Affiliation(s)
- Moustoifa Said
- Univ. Grenoble Alpes, Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), 38041 Grenoble, France; Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000 Grenoble, France
| | - Clément Tavakoli
- Univ. Lyon 1, Inserm U1060, CarMeN Laboratory, 69600 Oullins, France; Univ. Grenoble Alpes, Inserm, UA7 Strobe, 38000 Grenoble, France
| | - Chloé Dumot
- Univ. Lyon 1, Inserm U1060, CarMeN Laboratory, 69600 Oullins, France
| | - Karine Toupet
- IRMB, Univ. Montpellier, INSERM, CHU Montpellier, Montpellier, France
| | - Yuxi Clara Dong
- Department of Radiology and Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Nora Collomb
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000 Grenoble, France
| | | | - Anaïck Moisan
- Cell Therapy and Engineering Unit, EFS Rhone Alpes, 38330 Saint Ismier, France
| | - Bertrand Favier
- Univ. Grenoble Alpes, Translational Innovation in Medicine & Complexity, UMR552, 38700 La Tronche, France
| | - Benoit Chovelon
- Univ. Grenoble-Alpes, Departement de Pharmacochimie Moleculaire UMR 5063, 38400 Grenoble, France; Institut de Biologie et Pathologie, CHU de Grenoble-Alpes, 38700 La Tronche, France
| | - Emmanuel Luc Barbier
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000 Grenoble, France
| | | | - David Peter Cormode
- Department of Radiology and Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Danièle Noël
- IRMB, Univ. Montpellier, INSERM, CHU Montpellier, Montpellier, France
| | - Emmanuel Brun
- Univ. Grenoble Alpes, Inserm, UA7 Strobe, 38000 Grenoble, France
| | - Hélène Elleaume
- Univ. Grenoble Alpes, Inserm, UA7 Strobe, 38000 Grenoble, France
| | - Marlène Wiart
- Univ. Lyon 1, Inserm U1060, CarMeN Laboratory, 69600 Oullins, France
| | - Olivier Detante
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000 Grenoble, France; CHU Grenoble Alpes, Stroke Unit, Department of Neurology, 38043 Grenoble, France
| | - Claire Rome
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000 Grenoble, France
| | - Rachel Auzély-Velty
- Univ. Grenoble Alpes, Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), 38041 Grenoble, France
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24
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Davaa G, Hong JY, Lee JH, Kim MS, Buitrago JO, Li YM, Lee HH, Han DW, Leong KW, Hyun JK, Kim HW. Delivery of Induced Neural Stem Cells Through Mechano-Tuned Silk-Collagen Hydrogels for the Recovery of Contused Spinal Cord in Rats. Adv Healthc Mater 2023; 12:e2201720. [PMID: 36447307 DOI: 10.1002/adhm.202201720] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/16/2022] [Indexed: 12/02/2022]
Abstract
Neural stem cells (NSC) have tremendous potential for therapeutic regeneration of diseased or traumatized neural tissues, including injured spinal cord. However, transplanted NSC suffer from low cell survival and uncontrolled differentiation, limiting in vivo efficacy. Here, this issue is tackled by delivery through silk-collagen protein hydrogels that are stiffness-matched, stress-relaxing, and shear-thinning. The mechanically-tuned hydrogels protect NSC reprogrammed from fibroblasts (iNSC) initially from injection shear-stress, and enhance long-term survival over 12 weeks. Hydrogel-iNSC treatment alleviates neural inflammation, with reduced inflammatory cells and lesions than NSC-only. The iNSC migrate from the hydrogel into surrounding tissues, secrete up-regulated neurotrophic factors, and differentiate into neural cell subtypes, forming synapses. More serotonergic axons are observed in the lesion cavity, and locomotor functions are improved in hydrogel-iNSC than in iNSC-only. This study highlights the ability of mechanically-tuned protein hydrogels to protect iNSC from the injection stress and severe inflammatory environment, allowing them to differentiate and function to recover the injured spinal cord.
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Affiliation(s)
- Ganchimeg Davaa
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jin Young Hong
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea.,Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea.,UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea.,Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
| | - Min Soo Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jennifer O Buitrago
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Basic Sciences Department, International University of Catalonia (UIC), Barcelona, 08017, Spain
| | - Yu-Meng Li
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea.,Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea
| | - Dong Wook Han
- Konkuk University Open-Innovation Center, Institute of Biomedical Science & Technology, Konkuk University, Seoul, 143701, Republic of Korea
| | - Kam W Leong
- Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA.,Department of Systems Biology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Jung Keun Hyun
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Rehabilitation Medicine, College of Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Wiregene Co., Ltd., Cheonan, 31116, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea.,Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea.,UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea.,Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
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25
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Bhuiyan MH, Houlton J, Clarkson AN. Hydrogels and Nanoscaffolds for Long-Term Intraparenchymal Therapeutic Delivery After Stroke. Methods Mol Biol 2023; 2616:379-390. [PMID: 36715947 DOI: 10.1007/978-1-0716-2926-0_26] [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: 01/31/2023]
Abstract
Stroke remains a leading cause of adult disability with treatments limited to thrombolytic therapies that are severely limited by a narrow therapeutic window. The potential of hundreds of other therapeutic agents cannot be evaluated due to their poor ability to cross the blood-brain barrier. Recently, biopolymer hydrogels have shown promise at overcoming these obstacles via the delivering of therapeutic molecules (pharmacological, mRNA, stem cells, etc.) to injured nervous tissue to afford functional recovery in rodent models of stroke. To date, we have tested different biopolymer hydrogels in mouse models of stroke for their ability to promote post-stroke recovery and for in situ delivery of growth factors, small pharmacological compounds, siRNAs, and stem cells. Here, we describe practical instructions on how to prepare various biopolymer hydrogels in house with further guidance on how to use them for intracerebral administration of therapeutic agents in preclinical stroke models.
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Affiliation(s)
- Mozammel H Bhuiyan
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin, New Zealand.,Centre for Bioengineering and Nanomedicine, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Josh Houlton
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin, New Zealand
| | - Andrew N Clarkson
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin, New Zealand.
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26
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Hodge JG, Robinson JL, Mellott AJ. Novel hydrogel system eliminates subculturing and improves retention of nonsenescent mesenchymal stem cell populations. Regen Med 2023; 18:23-36. [PMID: 36222003 PMCID: PMC9732917 DOI: 10.2217/rme-2022-0140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/22/2022] [Indexed: 12/14/2022] Open
Abstract
Aim: To compare the physiological behavior of mesenchymal stem/stromal cells (MSCs) within an expandable tissue-mimetic 3D system relative to in vitro expansion in a traditional 2D system. Methods: Adipose-derived MSCs (ASCs) were continuously cultured for 6 weeks on either 2D culture plastic or in a 3D hydrogel system that eliminated subculturing. ASCs were assessed for senescence, 'stem-like' MSC markers, and ability for their secretome to augment a secondary cell population. Results: The 3D hydrogel system resulted in an enhanced retention of more regenerative, nonsenescent ASC populations that exhibited increased expression of 'stem-like' MSC surface markers. Conclusion: This study introduces a proof-of-concept design for a novel modular 3D system that can improve in vitro expansion of stem-like cell populations for future regenerative therapies.
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Affiliation(s)
- Jacob G Hodge
- Bioengineering Graduate Program, University of Kansas, Lawrence, KS 66045, USA
- Department of Plastic Surgery, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Jennifer L Robinson
- Bioengineering Graduate Program, University of Kansas, Lawrence, KS 66045, USA
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, KS 66045, USA
| | - Adam J Mellott
- Department of Plastic Surgery, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Ronawk, LLC, Olathe, KS 66062, USA
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27
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Reshamwala R, Shah M. Regenerative Approaches in the Nervous System. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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28
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Weber RZ, Mulders G, Perron P, Tackenberg C, Rust R. Molecular and anatomical roadmap of stroke pathology in immunodeficient mice. Front Immunol 2022; 13:1080482. [PMID: 36569903 PMCID: PMC9785704 DOI: 10.3389/fimmu.2022.1080482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
Background Stroke remains a leading cause of disability and death worldwide. It has become apparent that inflammation and immune mediators have a pre-dominant role in initial tissue damage and long-term recovery. Still, different immunosuppressed mouse models are necessary in stroke research e.g., to evaluate therapies using human cell grafts. Despite mounting evidence delineating the importance of inflammation in the stroke pathology, it is poorly described to what extent immune deficiency influences overall stroke outcome. Methods Here, we assessed the stroke pathology of popular genetic immunodeficient mouse models, i.e., NOD scid gamma (NSG) and recombination activating gene 2 (Rag2-/-) mice as well as pharmacologically immunosuppressed mice and compared them to immune competent, wildtype (WT) C57BL/6J mice three weeks after injury. We performed histology, gene expression, blood serum and behavioural analysis to identify the impact of immunosuppression on stroke progression. Results We detected changes in microglia activation/macrophage infiltration, scar-forming and vascular repair in immune-suppressed mice three weeks after injury. Transcriptomic analysis of stroked tissue revealed the strongest deviation from WT was observed in NSG mice affecting immunological and angiogenic pathways. Pharmacological immunosuppression resulted in the least variation in gene expression compared with the WT. These anatomical and genetic changes did not affect functional recovery in a time course of three weeks. To determine whether timing of immunosuppression is critical, we compared mice with acute and delayed pharmacological immunosuppression after stroke. Mice with delayed immunosuppression (7d) showed increased inflammatory and scarring responses compared to animals acutely treated with tacrolimus, thus more closely resembling WT pathology. Transplantation of human cells in the brains of immunosuppressed mice led to prolonged cell survival in all immunosuppressed mouse models, which was most consistent in NSG and Rag2-/- mice. Conclusions We detected distinct anatomical and molecular changes in the stroke pathology between individual immunosuppressed mouse models that should be considered when selecting an appropriate mouse model for stroke research.
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Affiliation(s)
- Rebecca Z. Weber
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland,Neuroscience Center Zurich, University of Zurich and Eidgenössische Technische Hochschule (ETH) Zurich, Zurich, Switzerland
| | - Geertje Mulders
- Department of Health Sciences and Technology, Eidgenössische Technische Hochschule (ETH) Zurich, Zurich, Switzerland
| | - Patrick Perron
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland
| | - Christian Tackenberg
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland,Neuroscience Center Zurich, University of Zurich and Eidgenössische Technische Hochschule (ETH) Zurich, Zurich, Switzerland
| | - Ruslan Rust
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland,Neuroscience Center Zurich, University of Zurich and Eidgenössische Technische Hochschule (ETH) Zurich, Zurich, Switzerland,*Correspondence: Ruslan Rust,
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29
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Zhao T, Zhu T, Xie L, Li Y, Xie R, Xu F, Tang H, Zhu J. Neural Stem Cells Therapy for Ischemic Stroke: Progress and Challenges. Transl Stroke Res 2022; 13:665-675. [PMID: 35032307 DOI: 10.1007/s12975-022-00984-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 02/07/2023]
Abstract
Ischemic stroke, with its high morbidity and mortality, is the most common cerebrovascular accident and results in severe neurological deficits. Despite advances in medical and surgical intervention, post-stroke therapies remain scarce, which seriously affects the quality of life of patients. Over the past decades, stem cell transplantation has been recognized as very promising therapy for neurological diseases. Neural stem cell (NSC) transplantation is the optimal choice for ischemic stroke as NSCs inherently reside in the brain and can potentially differentiate into a variety of cell types within the central nervous system. Recent research has demonstrated that NSC transplantation can facilitate neural recovery after ischemic stroke, but the mechanisms still remain unclear, and basic/clinical studies of NSC transplantation for ischemic stroke have not yet been thoroughly elucidated. We thus, in this review, provide a futher understanding of the therapeutic role of NSCs for ischemic stroke, and evaluate their prospects for future application in clinical patients of ischemic stroke.
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Affiliation(s)
- Tong Zhao
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Tongming Zhu
- Fudan University Huashan Hospital, Department of Neurosurgery, National Center for Neurological Disorders, National Key Laboratory for Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Institutes of Brain Science, MOE Frontiers Center for Brain Science, Shanghai Medical College-Fudan University, No.12 Middle Wulumuqi Road, Shanghai, 200040, China
| | - Liqian Xie
- Fudan University Huashan Hospital, Department of Neurosurgery, National Center for Neurological Disorders, National Key Laboratory for Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Institutes of Brain Science, MOE Frontiers Center for Brain Science, Shanghai Medical College-Fudan University, No.12 Middle Wulumuqi Road, Shanghai, 200040, China
| | - Yao Li
- Med-X Research Institute, Shanghai Jiaotong University, Shanghai, 200030, China
| | - Rong Xie
- Fudan University Huashan Hospital, Department of Neurosurgery, National Center for Neurological Disorders, National Key Laboratory for Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Institutes of Brain Science, MOE Frontiers Center for Brain Science, Shanghai Medical College-Fudan University, No.12 Middle Wulumuqi Road, Shanghai, 200040, China
| | - Feng Xu
- Fudan University Huashan Hospital, Department of Neurosurgery, National Center for Neurological Disorders, National Key Laboratory for Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Institutes of Brain Science, MOE Frontiers Center for Brain Science, Shanghai Medical College-Fudan University, No.12 Middle Wulumuqi Road, Shanghai, 200040, China.
| | - Hailiang Tang
- Fudan University Huashan Hospital, Department of Neurosurgery, National Center for Neurological Disorders, National Key Laboratory for Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Institutes of Brain Science, MOE Frontiers Center for Brain Science, Shanghai Medical College-Fudan University, No.12 Middle Wulumuqi Road, Shanghai, 200040, China.
| | - Jianhong Zhu
- Fudan University Huashan Hospital, Department of Neurosurgery, National Center for Neurological Disorders, National Key Laboratory for Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Institutes of Brain Science, MOE Frontiers Center for Brain Science, Shanghai Medical College-Fudan University, No.12 Middle Wulumuqi Road, Shanghai, 200040, China.
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30
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Rust R, Weber RZ, Generali M, Kehl D, Bodenmann C, Uhr D, Wanner D, Zürcher KJ, Saito H, Hoerstrup SP, Nitsch RM, Tackenberg C. Xeno-free induced pluripotent stem cell-derived neural progenitor cells for in vivo applications. J Transl Med 2022; 20:421. [PMID: 36114512 PMCID: PMC9482172 DOI: 10.1186/s12967-022-03610-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 08/24/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Currently, there is no regenerative therapy for patients with neurological and neurodegenerative disorders. Cell-therapies have emerged as a potential treatment for numerous brain diseases. Despite recent advances in stem cell technology, major concerns have been raised regarding the feasibility and safety of cell therapies for clinical applications. METHODS We generated good manufacturing practice (GMP)-compatible neural progenitor cells (NPCs) from transgene- and xeno-free induced pluripotent stem cells (iPSCs) that can be smoothly adapted for clinical applications. NPCs were characterized in vitro for their differentiation potential and in vivo after transplantation into wild type as well as genetically immunosuppressed mice. RESULTS Generated NPCs had a stable gene-expression over at least 15 passages and could be scaled for up to 1018 cells per initially seeded 106 cells. After withdrawal of growth factors in vitro, cells adapted a neural fate and mainly differentiated into active neurons. To ensure a pure NPC population for in vivo applications, we reduced the risk of iPSC contamination by applying micro RNA-switch technology as a safety checkpoint. Using lentiviral transduction with a fluorescent and bioluminescent dual-reporter construct, combined with non-invasive in vivo bioluminescent imaging, we longitudinally tracked the grafted cells in healthy wild-type and genetically immunosuppressed mice as well as in a mouse model of ischemic stroke. Long term in-depth characterization revealed that transplanted NPCs have the capability to survive and spontaneously differentiate into functional and mature neurons throughout a time course of a month, while no residual pluripotent cells were detectable. CONCLUSION We describe the generation of transgene- and xeno-free NPCs. This simple differentiation protocol combined with the ability of in vivo cell tracking presents a valuable tool to develop safe and effective cell therapies for various brain injuries.
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Affiliation(s)
- Ruslan Rust
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland.
| | - Rebecca Z Weber
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
- Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Melanie Generali
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Debora Kehl
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Chantal Bodenmann
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Daniela Uhr
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Debora Wanner
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Kathrin J Zürcher
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Hirohide Saito
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Simon P Hoerstrup
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
- Wyss Translational Center Zurich, University and ETH Zurich, Zurich, Switzerland
| | - Roger M Nitsch
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
- Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Christian Tackenberg
- Institute for Regenerative Medicine, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland.
- Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland.
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Mishchenko TA, Klimenko MO, Kuznetsova AI, Yarkov RS, Savelyev AG, Sochilina AV, Mariyanats AO, Popov VK, Khaydukov EV, Zvyagin AV, Vedunova MV. 3D-printed hyaluronic acid hydrogel scaffolds impregnated with neurotrophic factors (BDNF, GDNF) for post-traumatic brain tissue reconstruction. Front Bioeng Biotechnol 2022; 10:895406. [PMID: 36091441 PMCID: PMC9453866 DOI: 10.3389/fbioe.2022.895406] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
Brain tissue reconstruction posttraumatic injury remains a long-standing challenge in neurotransplantology, where a tissue-engineering construct (scaffold, SC) with specific biochemical properties is deemed the most essential building block. Such three-dimensional (3D) hydrogel scaffolds can be formed using brain-abundant endogenous hyaluronic acid modified with glycidyl methacrylate by employing our proprietary photopolymerisation technique. Herein, we produced 3D hyaluronic scaffolds impregnated with neurotrophic factors (BDNF, GDNF) possessing 600 kPa Young’s moduli and 336% swelling ratios. Stringent in vitro testing of fabricated scaffolds using primary hippocampal cultures revealed lack of significant cytotoxicity: the number of viable cells in the SC+BDNF (91.67 ± 1.08%) and SC+GDNF (88.69 ± 1.2%) groups was comparable to the sham values (p > 0.05). Interestingly, BDNF-loaded scaffolds promoted the stimulation of neuronal process outgrowth during the first 3 days of cultures development (day 1: 23.34 ± 1.46 µm; day 3: 37.26 ± 1.98 µm, p < 0.05, vs. sham), whereas GDNF-loaded scaffolds increased the functional activity of neuron-glial networks of cultures at later stages of cultivation (day 14) manifested in a 1.3-fold decrease in the duration coupled with a 2.4-fold increase in the frequency of Ca2+ oscillations (p < 0.05, vs. sham). In vivo studies were carried out using C57BL/6 mice with induced traumatic brain injury, followed by surgery augmented with scaffold implantation. We found positive dynamics of the morphological changes in the treated nerve tissue in the post-traumatic period, where the GDNF-loaded scaffolds indicated more favorable regenerative potential. In comparison with controls, the physiological state of the treated mice was improved manifested by the absence of severe neurological deficit, significant changes in motor and orienting-exploratory activity, and preservation of the ability to learn and retain long-term memory. Our results suggest in favor of biocompatibility of GDNF-loaded scaffolds, which provide a platform for personalized brain implants stimulating effective morphological and functional recovery of nerve tissue after traumatic brain injury.
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Affiliation(s)
- Tatiana A. Mishchenko
- Institute of Biology and Biomedicine, National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Maria O. Klimenko
- Institute of Biology and Biomedicine, National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Alisa I. Kuznetsova
- Institute of Biology and Biomedicine, National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Roman S. Yarkov
- Institute of Biology and Biomedicine, National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Alexander G. Savelyev
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Troitsk-Moscow, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - Anastasia V. Sochilina
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Troitsk-Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Alexandra O. Mariyanats
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Troitsk-Moscow, Russia
| | - Vladimir K. Popov
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Troitsk-Moscow, Russia
| | - Evgeny V. Khaydukov
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Troitsk-Moscow, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Andrei V. Zvyagin
- Institute of Biology and Biomedicine, National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
- MQ Photonics Centre, Macquarie University, Sydney, NSW, Australia
| | - Maria V. Vedunova
- Institute of Biology and Biomedicine, National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
- *Correspondence: Maria V. Vedunova,
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Sakowski SA, Chen KS. Stem cell therapy for central nervous system disorders: Metabolic interactions between transplanted cells and local microenvironments. Neurobiol Dis 2022; 173:105842. [PMID: 35988874 PMCID: PMC10117179 DOI: 10.1016/j.nbd.2022.105842] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 10/15/2022] Open
Abstract
Stem cell therapy is a promising and rapidly advancing treatment strategy for a multitude of neurologic disorders. Yet, while early phase clinical trials are being pursued in many disorders, the mechanism of action often remains unclear. One important potential mechanism by which stem cells provide neuroprotection is through metabolic signaling with diseased neurons, glia, and other cell types in the nervous system microenvironment. Early studies exploring such interactions report normalization of glucose metabolism, induction of protective mitochondrial genes, and even interactions with supportive neurovasculature. Local metabolic conditions also impact stem cell biology, which can have a large impact on transplant viability and efficacy. Epigenetic changes that occur in the donor prior to collection of stem cells, and even during in vitro culture conditions, may have effects on stem cell biology that are carried into the host upon stem cell transplantation. Transplanted stem cells also face potentially toxic metabolic microenvironments at the targeted transplant site. Novel approaches for metabolically "preconditioning" stem cells prior to transplant harness metabolic machinery to optimize stem cell survival upon transplant. Ultimately, an improved understanding of the metabolic cross-talk between implanted stem cells and the local nervous system environment, in both disease and injury states, will increase the likelihood of success in translating stem cell therapy to early trials in neurological disease.
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Affiliation(s)
- Stacey A Sakowski
- Department of Neurology, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA.
| | - Kevin S Chen
- Department of Neurology, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA; Department of Neurosurgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI 48109, USA.
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Sideris E, Kioulaphides S, Wilson K, Yu A, Chen J, Carmichael ST, Segura T. Particle hydrogels decrease cerebral atrophy and attenuate astrocyte and microglia/macrophage reactivity after stroke. ADVANCED THERAPEUTICS 2022; 5:2200048. [PMID: 36589207 PMCID: PMC9797126 DOI: 10.1002/adtp.202200048] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Increasing numbers of individuals live with stroke related disabilities. Following stroke, highly reactive astrocytes and pro-inflammatory microglia can release cytokines and lead to a cytotoxic environment that causes further brain damage and prevents endogenous repair. Paradoxically, these same cells also activate pro-repair mechanisms that contribute to endogenous repair and brain plasticity. Here, we show that the direct injection of a hyaluronic acid based microporous annealed particle (MAP) hydrogel into the stroke core in mice reduces the percent of highly reactive astrocytes, increases the percent of alternatively activated microglia, decreases cerebral atrophy and preserves NF200 axonal bundles. Further, we show that MAP hydrogel promotes reparative astrocyte infiltration into the lesion, which directly coincides with axonal penetration into the lesion. This work shows that the injection of a porous scaffold into the stroke core can lead to clinically relevant decrease in cerebral atrophy and modulates astrocytes and microglia towards a pro-repair phenotype.
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Affiliation(s)
- Elias Sideris
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA, United States
| | - Sophia Kioulaphides
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - Katrina Wilson
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - Aaron Yu
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA, United States
| | - Jun Chen
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - S Thomas Carmichael
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, United States
| | - Tatiana Segura
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States,Corresponding author: Tel.: +1 919-660-2901,
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Clickable Biomaterials for Modulating Neuroinflammation. Int J Mol Sci 2022; 23:ijms23158496. [PMID: 35955631 PMCID: PMC9369181 DOI: 10.3390/ijms23158496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 02/04/2023] Open
Abstract
Crosstalk between the nervous and immune systems in the context of trauma or disease can lead to a state of neuroinflammation or excessive recruitment and activation of peripheral and central immune cells. Neuroinflammation is an underlying and contributing factor to myriad neuropathologies including neurodegenerative diseases like Alzheimer’s disease and Parkinson’s disease; autoimmune diseases like multiple sclerosis; peripheral and central nervous system infections; and ischemic and traumatic neural injuries. Therapeutic modulation of immune cell function is an emerging strategy to quell neuroinflammation and promote tissue homeostasis and/or repair. One such branch of ‘immunomodulation’ leverages the versatility of biomaterials to regulate immune cell phenotypes through direct cell-material interactions or targeted release of therapeutic payloads. In this regard, a growing trend in biomaterial science is the functionalization of materials using chemistries that do not interfere with biological processes, so-called ‘click’ or bioorthogonal reactions. Bioorthogonal chemistries such as Michael-type additions, thiol-ene reactions, and Diels-Alder reactions are highly specific and can be used in the presence of live cells for material crosslinking, decoration, protein or cell targeting, and spatiotemporal modification. Hence, click-based biomaterials can be highly bioactive and instruct a variety of cellular functions, even within the context of neuroinflammation. This manuscript will review recent advances in the application of click-based biomaterials for treating neuroinflammation and promoting neural tissue repair.
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Ischemic Brain Stroke and Mesenchymal Stem Cells: An Overview of Molecular Mechanisms and Therapeutic Potential. Stem Cells Int 2022; 2022:5930244. [PMID: 35663353 PMCID: PMC9159823 DOI: 10.1155/2022/5930244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 10/12/2021] [Accepted: 05/04/2022] [Indexed: 12/15/2022] Open
Abstract
Ischemic brain injury is associated with a high rate of mortality and disability with no effective therapeutic strategy. Recently, a growing number of studies are focusing on mesenchymal stem cell-based therapies for neurodegenerative disorders. However, despite having the promising outcome of preclinical studies, the clinical application of stem cell therapy remained elusive due to little or no progress in clinical trials. The objective of this study was to provide a generalized critique for the role of mesenchymal stem cell therapy in ischemic stroke injury, its underlying mechanisms, and constraints on its preclinical and clinical applications. Thus, we attempted to present an overview of previously published reports to evaluate the progress and provide molecular basis of mesenchymal stem cells (MSCs) therapy and its application in preclinical and clinical settings, which could aid in designing an effective regenerative therapeutic strategy in the future.
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Liu X, Yang M, Lei F, Wang Y, Yang M, Mao C. Highly Effective Stroke Therapy Enabled by Genetically Engineered Viral Nanofibers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201210. [PMID: 35315947 DOI: 10.1002/adma.202201210] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/17/2022] [Indexed: 06/14/2023]
Abstract
Stroke results in the formation of a cavity in the infarcted brain tissue. Angiogenesis and neurogenesis are poor in the cavity, preventing brain-tissue regeneration for stroke therapy. To regenerate brain tissue in the cavity, filamentous phages, the human-safe nanofiber-like bacteria-specific viruses, are genetically engineered to display many copies of RGD peptide on the sidewalls. The viral nanofibers, electrostatically coated on biocompatible injectable silk protein microparticles, not only promote adhesion, proliferation, and infiltration of neural stem cells (NSCs), but also induce NSCs to differentiate preferentially into neurons in basal medium within 3 d. After the NSC-loaded microparticles are injected into the stroke cavity of rat models, the phage nanofibers on the microparticles stimulate angiogenesis and neurogenesis in the stroke sites within two weeks for brain regeneration, leading to functional recovery of limb motor control of rats within 12 weeks. The viral nanofibers also brought about the desired outcomes for stroke therapy, such as reducing inflammatory response, decreasing thickness of astrocytes scars, and increasing neuroblasts response in the subventricular zone. As virtually any functional peptide can be displayed on the phage by genetic means, the phage nanofibers hold promise as a unique and effective injectable biomaterial for stroke therapy.
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Affiliation(s)
- Xiangyu Liu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Mei Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang, 310058, P. R. China
| | - Fang Lei
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang, 310058, P. R. China
| | - Yaru Wang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang, 310058, P. R. China
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang, 310058, P. R. China
| | - Chuanbin Mao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK, 73019, USA
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Gallego I, Villate-Beitia I, Saenz-Del-Burgo L, Puras G, Pedraz JL. Therapeutic Opportunities and Delivery Strategies for Brain Revascularization in Stroke, Neurodegeneration, and Aging. Pharmacol Rev 2022; 74:439-461. [PMID: 35302047 DOI: 10.1124/pharmrev.121.000418] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 01/18/2022] [Accepted: 01/22/2022] [Indexed: 12/25/2022] Open
Abstract
Central nervous system (CNS) diseases, especially acute ischemic events and neurodegenerative disorders, constitute a public health problem with no effective treatments to allow a persistent solution. Failed therapies targeting neuronal recovery have revealed the multifactorial and intricate pathophysiology underlying such CNS disorders as ischemic stroke, Alzheimeŕs disease, amyotrophic lateral sclerosis, vascular Parkisonism, vascular dementia, and aging, in which cerebral microvasculature impairment seems to play a key role. In fact, a reduction in vessel density and cerebral blood flow occurs in these scenarios, contributing to neuronal dysfunction and leading to loss of cognitive function. In this review, we provide an overview of healthy brain microvasculature structure and function in health and the effect of the aforementioned cerebral CNS diseases. We discuss the emerging new therapeutic opportunities, and their delivery approaches, aimed at recovering brain vascularization in this context. SIGNIFICANCE STATEMENT: The lack of effective treatments, mainly focused on neuron recovery, has prompted the search of other therapies to treat cerebral central nervous system diseases. The disruption and degeneration of cerebral microvasculature has been evidenced in neurodegenerative diseases, stroke, and aging, constituting a potential target for restoring vascularization, neuronal functioning, and cognitive capacities by the development of therapeutic pro-angiogenic strategies.
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Affiliation(s)
- Idoia Gallego
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P); Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine, Institute of Health Carlos III, Madrid, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.); and Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.)
| | - Ilia Villate-Beitia
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P); Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine, Institute of Health Carlos III, Madrid, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.); and Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.)
| | - Laura Saenz-Del-Burgo
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P); Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine, Institute of Health Carlos III, Madrid, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.); and Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.)
| | - Gustavo Puras
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P); Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine, Institute of Health Carlos III, Madrid, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.); and Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.)
| | - José Luis Pedraz
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P); Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine, Institute of Health Carlos III, Madrid, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.); and Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain (I.G., I.V.-B., L.S.-B., G.P., J.L.P.)
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Neural stem cell therapy in conjunction with curcumin loaded in niosomal nanoparticles enhanced recovery from traumatic brain injury. Sci Rep 2022; 12:3572. [PMID: 35246564 PMCID: PMC8897489 DOI: 10.1038/s41598-022-07367-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 02/16/2022] [Indexed: 12/28/2022] Open
Abstract
Despite a great amount of effort, there is still a need for reliable treatments of traumatic brain injury (TBI). Recently, stem cell therapy has emerged as a new avenue to address neuronal regeneration after TBI. However, the environment of TBI lesions exerts negative effects on the stem cells efficacy. Therefore, to maximize the beneficial effects of stem cells in the course of TBI, we evaluated the effect of human neural stem/progenitor cells (hNS/PCs) and curcumin-loaded niosome nanoparticles (CM-NPs) on behavioral changes, brain edema, gliosis, and inflammatory responses in a rat model of TBI. After TBI, hNS/PCs were transplanted within the injury site and CM-NPs were orally administered for 10 days. Finally, the effect of combination therapy was compared to several control groups. Our results indicated a significant improvement of general locomotor activity in the hNS/PCs + CM-NPs treatment group compared to the control groups. We also observed a significant improvement in brain edema in the hNS/PCs + CM-NPs treatment group compared to the other groups. Furthermore, a significant decrease in astrogliosis was seen in the combined treatment group. Moreover, TLR4-, NF-κB-, and TNF-α- positive cells were significantly decreased in hNS/PCs + CM-NPs group compared to the control groups. Taken together, this study indicated that combination therapy of stem cells with CM-NPs can be an effective therapy for TBI.
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Li Y, Fraser D, Mereness J, Van Hove A, Basu S, Newman M, Benoit DSW. Tissue Engineered Neurovascularization Strategies for Craniofacial Tissue Regeneration. ACS APPLIED BIO MATERIALS 2022; 5:20-39. [PMID: 35014834 PMCID: PMC9016342 DOI: 10.1021/acsabm.1c00979] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Craniofacial tissue injuries, diseases, and defects, including those within bone, dental, and periodontal tissues and salivary glands, impact an estimated 1 billion patients globally. Craniofacial tissue dysfunction significantly reduces quality of life, and successful repair of damaged tissues remains a significant challenge. Blood vessels and nerves are colocalized within craniofacial tissues and act synergistically during tissue regeneration. Therefore, the success of craniofacial regenerative approaches is predicated on successful recruitment, regeneration, or integration of both vascularization and innervation. Tissue engineering strategies have been widely used to encourage vascularization and, more recently, to improve innervation through host tissue recruitment or prevascularization/innervation of engineered tissues. However, current scaffold designs and cell or growth factor delivery approaches often fail to synergistically coordinate both vascularization and innervation to orchestrate successful tissue regeneration. Additionally, tissue engineering approaches are typically investigated separately for vascularization and innervation. Since both tissues act in concert to improve craniofacial tissue regeneration outcomes, a revised approach for development of engineered materials is required. This review aims to provide an overview of neurovascularization in craniofacial tissues and strategies to target either process thus far. Finally, key design principles are described for engineering approaches that will support both vascularization and innervation for successful craniofacial tissue regeneration.
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Affiliation(s)
- Yiming Li
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - David Fraser
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Jared Mereness
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Amy Van Hove
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Sayantani Basu
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Maureen Newman
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States.,Materials Science Program, University of Rochester, Rochester, New York 14627, United States.,Department of Chemical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Biomedical Genetics and Center for Oral Biology, University of Rochester Medical Center, Rochester, New York 14642, United States
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40
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Liu B, Li M, Zhang L, Chen Z, Lu P. Motor neuron replacement therapy for amyotrophic lateral sclerosis. Neural Regen Res 2022; 17:1633-1639. [PMID: 35017408 PMCID: PMC8820706 DOI: 10.4103/1673-5374.332123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Amyotrophic lateral sclerosis is a motor neuron degenerative disease that is also known as Lou Gehrig's disease in the United States, Charcot's disease in France, and motor neuron disease in the UK. The loss of motor neurons causes muscle wasting, paralysis, and eventually death, which is commonly related to respiratory failure, within 3-5 years after onset of the disease. Although there are a limited number of drugs approved for amyotrophic lateral sclerosis, they have had little success at treating the associated symptoms, and they cannot reverse the course of motor neuron degeneration. Thus, there is still a lack of effective treatment for this debilitating neurodegenerative disorder. Stem cell therapy for amyotrophic lateral sclerosis is a very attractive strategy for both basic and clinical researchers, particularly as transplanted stem cells and stem cell-derived neural progenitor/precursor cells can protect endogenous motor neurons and directly replace the lost or dying motor neurons. Stem cell therapies may also be able to re-establish the motor control of voluntary muscles. Here, we review the recent progress in the use of neural stem cells and neural progenitor cells for the treatment of amyotrophic lateral sclerosis. We focus on MN progenitor cells derived from fetal central nervous system tissue, embryonic stem cells, and induced pluripotent stem cells. In our recent studies, we found that transplanted human induced pluripotent stem cell-derived motor neuron progenitors survive well, differentiate into motor neurons, and extend axons into the host white matter, not only in the rostrocaudal direction, but also along motor axon tracts towards the ventral roots in the immunodeficient rat spinal cord. Furthermore, the significant motor axonal extension after neural progenitor cell transplantation in amyotrophic lateral sclerosis models demonstrates that motor neuron replacement therapy could be a promising therapeutic strategy for amyotrophic lateral sclerosis, particularly as a variety of stem cell derivatives, including induced pluripotent stem cells, are being considered for clinical trials for various diseases.
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Affiliation(s)
- Bochao Liu
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education; Center of Neural Injury and Repair; Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Mo Li
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education; Center of Neural Injury and Repair; Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Lingyan Zhang
- iXCells Biotechnologies USA, Inc., San Diego, CA, USA; Amogene Biotech, Xiamen, Fujian Province, China
| | - Zhiguo Chen
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education; Center of Neural Injury and Repair; Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Paul Lu
- Veterans Administration San Diego Healthcare System, San Diego; Department of Neurosciences, University of California - San Diego, La Jolla, CA, USA
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Abstract
Although the use of stem cell therapy for central nervous system (CNS) repair has shown considerable promise, it is still limited by the immediate death of a large fraction of transplanted cells owing to cell handling procedures, injection stress and host immune attack leading to poor therapeutic outcomes. Scaffolding cells in hydrogels is known to protect cells from such immediate death by shielding them from mechanical damage and by averting an immune attack after transplantation. Implanted hydrogels must eventually degrade and facilitate a safe integration of the graft with the surrounding host tissue. Hence, serial monitoring of hydrogel degradation in vivo is pivotal to optimize hydrogel compositions and overall therapeutic efficacy of the graft. We present here methods and protocols to use chemical exchange saturation transfer magnetic resonance imaging (CEST MRI) as a non-invasive, label-free imaging paradigm to monitor the degradation of composite hydrogels made up of thiolated gelatin (Gel-SH), thiolated hyaluronic acid (HA-SH), and poly (ethylene glycol) diacrylate (PEGDA), of which the stiffness and CEST contrast can be fine-tuned by simply varying the composite concentrations and mixing ratios. By individually labeling Gel-S and HA-S with two distinct near-infrared (NIR) dyes, multispectral monitoring of the relative degradation of the components can be used for long-term validation of the CEST MRI findings.
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Affiliation(s)
- Shreyas Kuddannaya
- Division of MR Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Wei Zhu
- Division of MR Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jeff W M Bulte
- Division of MR Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Chemical & Biomolecular Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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42
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Totten JD, Alhadrami HA, Jiffri EH, McMullen CJ, Seib FP, Carswell HVO. Towards clinical translation of 'second-generation' regenerative stroke therapies: hydrogels as game changers? Trends Biotechnol 2021; 40:708-720. [PMID: 34815101 DOI: 10.1016/j.tibtech.2021.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 12/19/2022]
Abstract
Stroke is an unmet clinical need with a paucity of treatments, at least in part because chronic stroke pathologies are prohibitive to 'first-generation' stem cell-based therapies. Hydrogels can remodel the hostile stroke microenvironment to aid endogenous and exogenous regenerative repair processes. However, no clinical trials have yet been successfully commissioned for these 'second-generation' hydrogel-based therapies for chronic ischaemic stroke regeneration. This review recommends a path forward to improve hydrogel technology for future clinical translation for stroke. Specifically, we suggest that a better understanding of human host stroke tissue-hydrogel interactions in addition to the effects of scaling up hydrogel volume to human-sized cavities would help guide translation of these second-generation regenerative stroke therapies.
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Affiliation(s)
- John D Totten
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | - Hani A Alhadrami
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Essam H Jiffri
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Calum J McMullen
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | - F Philipp Seib
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK; EPSRC Future Manufacturing Research Hub for Continuous Manufacturing and Advanced Crystallisation (CMAC), University of Strathclyde, Technology and Innovation Centre, Glasgow G1 1RD, UK
| | - Hilary V O Carswell
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK.
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43
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Mirzaei S, Kulkarni K, Zhou K, Crack PJ, Aguilar MI, Finkelstein DI, Forsythe JS. Biomaterial Strategies for Restorative Therapies in Parkinson's Disease. ACS Chem Neurosci 2021; 12:4224-4235. [PMID: 34634903 DOI: 10.1021/acschemneuro.1c00484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Parkinson's disease (PD) is a progressive neurological disorder, in which dopaminergic midbrain neurons degenerate, leading to dopamine depletion that is associated with neuronal death. In this Review, we initially describe the pathogenesis of PD and established therapies that unfortunately only delay progression of the disease. With a rapidly escalating incidence in PD, there is an urgent need to develop new therapies that not only halt progression but even reverse degeneration. Biomaterials are playing critical roles in these new therapies which include controlled and site-specific delivery of neurotrophins, increased engraftment of implanted neural stem cells, and redirection of endogenous stem cell populations away from their niche to encourage reparative mechanisms. This Review will therefore cover important design features of biomaterials used in regenerative medicine and tissue engineering strategies targeted at PD.
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Affiliation(s)
- Samaneh Mirzaei
- Department of Materials Science and Engineering, Monash Institute of Medical Engineering, Monash University, Clayton, Victoria 3800, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Ketav Kulkarni
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Kun Zhou
- Department of Materials Science and Engineering, Monash Institute of Medical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Peter J. Crack
- Department of Biochemistry and Pharmacology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Marie-Isabel Aguilar
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - David I. Finkelstein
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - John S. Forsythe
- Department of Materials Science and Engineering, Monash Institute of Medical Engineering, Monash University, Clayton, Victoria 3800, Australia
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44
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Niari SA, Rahbarghazi R, Geranmayeh MH, Karimipour M. Biomaterials patterning regulates neural stem cells fate and behavior: The interface of biology and material science. J Biomed Mater Res A 2021; 110:725-737. [PMID: 34751503 DOI: 10.1002/jbm.a.37321] [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: 04/12/2021] [Revised: 09/19/2021] [Accepted: 10/06/2021] [Indexed: 11/12/2022]
Abstract
The combination of nanotechnology and stem cell biology is one of the most promising advances in the field of regenerative medicine. This novel combination has widely been utilized in vitro settings in an attempt to develop efficient therapeutic strategies to overcome the limited capacity of the central nervous system (CNS) in replacing degenerating neural cells with functionally normal cells after the onset of acute and chronic neurological disorders. Importantly, biomaterials, not only, enhance the endogenous CNS neurogenesis and plasticity, but also, could provide a desirable supportive microenvironment to harness the full potential of the in vitro expanded neural stem cells (NSCs) for regenerative purposes. Here, first, we discuss how the physical and biochemical properties of biomaterials, such as their stiffness and elasticity, could influence the behavior of NSCs. Then, since the NSCs niche or microenvironment is of fundamental importance in controlling the dynamic destiny of NSCs such as their quiescent and proliferative states, topographical effects of surface diversity in biomaterials, that is, the micro-and nano-patterned surfaces will be discussed in detail. Finally, the influence of biomaterials as artificial microenvironments on the behavior of NSCs through the specific mechanotransduction signaling pathway mediated by focal adhesion formation will be reviewed.
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Affiliation(s)
- Shabnam Asghari Niari
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hossein Geranmayeh
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Neurosciences Research Center (NSRC), Imam Reza Medical Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Karimipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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45
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Nelson DW, Gilbert RJ. Extracellular Matrix-Mimetic Hydrogels for Treating Neural Tissue Injury: A Focus on Fibrin, Hyaluronic Acid, and Elastin-Like Polypeptide Hydrogels. Adv Healthc Mater 2021; 10:e2101329. [PMID: 34494398 PMCID: PMC8599642 DOI: 10.1002/adhm.202101329] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/23/2021] [Indexed: 12/19/2022]
Abstract
Neurological and functional recovery is limited following central nervous system injury and severe injury to the peripheral nervous system. Extracellular matrix (ECM)-mimetic hydrogels are of particular interest as regenerative scaffolds for the injured nervous system as they provide 3D bioactive interfaces that modulate cellular response to the injury environment and provide naturally degradable scaffolding for effective tissue remodeling. In this review, three unique ECM-mimetic hydrogels used in models of neural injury are reviewed: fibrin hydrogels, which rely on a naturally occurring enzymatic gelation, hyaluronic acid hydrogels, which require chemical modification prior to chemical crosslinking, and elastin-like polypeptide (ELP) hydrogels, which exhibit a temperature-sensitive gelation. The hydrogels are reviewed by summarizing their unique biological properties, their use as drug depots, and their combination with other biomaterials, such as electrospun fibers and nanoparticles. This review is the first to focus on these three ECM-mimetic hydrogels for their use in neural tissue engineering. Additionally, this is the first review to summarize the use of ELP hydrogels for nervous system applications. ECM-mimetic hydrogels have shown great promise in preclinical models of neural injury and future advancements in their design and use can likely lead to viable treatments for patients with neural injury.
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Affiliation(s)
- Derek W Nelson
- Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th St, Troy, NY, 12180, USA
| | - Ryan J Gilbert
- Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th St, Troy, NY, 12180, USA
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46
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Samal J, Segura T. Injectable biomaterial shuttles for cell therapy in stroke. Brain Res Bull 2021; 176:25-42. [PMID: 34391821 PMCID: PMC8524625 DOI: 10.1016/j.brainresbull.2021.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 07/26/2021] [Accepted: 08/06/2021] [Indexed: 01/01/2023]
Abstract
Ischemic stroke (IS) is the leading cause of disability and contributes to a significant socio-economic cost in the western world. Brain repair strategies investigated in the pre-clinical models include the delivery of drug or cell-based therapeutics; which is hindered by the complex anatomy and functional organization of the brain. Biomaterials can be instrumental in alleviating some of these challenges by providing a structural support, localization, immunomodulation and/or modulating cellular cross-talk in the brain. This review addresses the significance of and challenges associated with cell therapy in an ischemic brain. This is followed by a detailed insight into the biomaterial-based delivery systems which have been designed to provide sustained trophic factor delivery for endogenous repair and to support transplanted cell survival and integration. A biomaterial intervention uses a multifaceted approach in enhancing the survival and engraftment of cells during transplantation and this has driven them as potential candidates for the treatment of IS. The biological processes that are activated as a response to the biomaterials and how to modulate them is one of the key factors contributing to the success of the biomaterial-based therapeutic approach. Future perspectives highlight the need of a combinative approach of merging the material design with disease biology to fabricate effective biomaterial-based intervention of stroke.
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Affiliation(s)
- Juhi Samal
- Department of Biomedical Engineering, 534 Research Drive, Durham, NC 27708, United States
| | - Tatiana Segura
- Department of Biomedical Engineering, 534 Research Drive, Durham, NC 27708, United States.
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47
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Shabani Z, Rahbarghazi R, Karimipour M, Ghadiri T, Salehi R, Sadigh‐Eteghad S, Farhoudi M. Transplantation of bioengineered Reelin-loaded PLGA/PEG micelles can accelerate neural tissue regeneration in photothrombotic stroke model of mouse. Bioeng Transl Med 2021; 7:e10264. [PMID: 35111956 PMCID: PMC8780906 DOI: 10.1002/btm2.10264] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/20/2021] [Accepted: 10/16/2021] [Indexed: 01/09/2023] Open
Abstract
Ischemic stroke is characterized by extensive neuronal loss, glial scar formation, neural tissue degeneration that leading to profound changes in the extracellular matrix, neuronal circuitry, and long-lasting functional disabilities. Although transplanted neural stem cells (NSCs) can recover some of the functional deficit after stroke, retrieval is not complete and repair of lost tissue is negligible. Therefore, the current challenge is to use the combination of NSCs with suitably enriched biomaterials to retain these cells within the infarct cavity and accelerate the formation of a de novo tissue. This study aimed to test the regenerative potential of polylactic-co-glycolic acid-polyethylene glycol (PLGA-PEG) micelle biomaterial enriched with Reelin and embryonic NSCs on photothrombotic stroke model of mice to gain appropriate methods in tissue engineering. For this purpose, two sets of experiments, either in vitro or in vivo models, were performed. In vitro analyses exhibited PLGA-PEG plus Reelin-induced proliferation rate (Ki-67+ NSCs) and neurite outgrowth (axonization and dendritization) compared to PLGA-PEG + NSCs and Reelin + NSCs groups (p < 0.05). Besides, neural differentiation (Map-2+ cells) was high in NSCs cultured in the presence of Reelin-loaded PLGA-PEG micelles (p < 0.05). Double immunofluorescence staining showed that Reelin-loaded PLGA-PEG micelles increased the number of migrating neural progenitor cells (DCX+ cells) and mature neurons (NeuN+ cells) around the lesion site compared to the groups received PLGA-PEG and Reelin alone after 1 month (p < 0.05). Immunohistochemistry results showed that the PLGA/PEG plus Reelin significantly decreased the astrocytic gliosis and increased local angiogenesis (vWF-positive cells) relative to the other groups. These changes led to the reduction of cavity size in the Reelin-loaded PLGA-PEG+NSCs group. Neurobehavioral tests indicated Reelin-loaded PLGA-PEG+NSCs promoted neurological outcome and functional recovery (p < 0.05). These results indicated that Reelin-loaded PLGA-PEG is capable of promoting NSCs dynamic growth, neuronal differentiation, and local angiogenesis following ischemic injury via providing a desirable microenvironment. These features can lead to neural tissue regeneration and functional recovery.
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Affiliation(s)
- Zahra Shabani
- Neurosciences Research Center (NSRC)Tabriz University of Medical SciencesTabrizIran,Department of Neurosciences, Faculty of Advanced Medical SciencesTabriz University of Medical SciencesTabrizIran
| | - Reza Rahbarghazi
- Stem Cell Research CenterTabriz University of Medical SciencesTabrizIran,Department of Applied Cell Sciences, Faculty of Advanced Medical SciencesTabriz University of Medical SciencesTabrizIran
| | - Mohammad Karimipour
- Department of Neurosciences, Faculty of Advanced Medical SciencesTabriz University of Medical SciencesTabrizIran,Department of Anatomical Sciences, Faculty of MedicineTabriz University of Medical SciencesTabrizIran
| | - Tahereh Ghadiri
- Department of Neurosciences, Faculty of Advanced Medical SciencesTabriz University of Medical SciencesTabrizIran
| | - Roya Salehi
- Department of Medical Nanotechnology, Faculty of Advanced Medical SciencesTabriz University of Medical SciencesTabrizIran
| | - Saeed Sadigh‐Eteghad
- Neurosciences Research Center (NSRC)Tabriz University of Medical SciencesTabrizIran
| | - Mehdi Farhoudi
- Neurosciences Research Center (NSRC)Tabriz University of Medical SciencesTabrizIran
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48
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Khan J, Rudrapal M, Bhat EA, Ali A, Alaidarous M, Alshehri B, Banwas S, Ismail R, Egbuna C. Perspective Insights to Bio-Nanomaterials for the Treatment of Neurological Disorders. Front Bioeng Biotechnol 2021; 9:724158. [PMID: 34712651 PMCID: PMC8546296 DOI: 10.3389/fbioe.2021.724158] [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] [Received: 06/15/2021] [Accepted: 09/20/2021] [Indexed: 12/25/2022] Open
Abstract
The significance of biomaterials is well appreciated in nanotechnology, and its use has resulted in major advances in biomedical sciences. Although, currently, very little data is available on the clinical trial studies for treatment of neurological conditions, numerous promising advancements have been reported in drug delivery and regenerative therapies which can be applied in clinical practice. Among the commonly reported biomaterials in literature, the self-assembling peptides and hydrogels have been recognized as the most potential candidate for treatment of common neurological conditions such as Alzheimer's, Parkinson's, spinal cord injury, stroke and tumors. The hydrogels, specifically, offer advantages like flexibility and porosity, and mimics the properties of the extracellular matrix of the central nervous system. These factors make them an ideal scaffold for drug delivery through the blood-brain barrier and tissue regeneration (using stem cells). Thus, the use of biomaterials as suitable matrix for therapeutic purposes has emerged as a promising area of neurosciences. In this review, we describe the application of biomaterials, and the current advances, in treatment of statistically common neurological disorders.
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Affiliation(s)
- Johra Khan
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Majmaah, Saudi Arabia
| | - Mithun Rudrapal
- Rasiklal M. Dhariwal Institute of Pharmaceutical Education & Research, Pune, India
| | - Eijaz Ahmed Bhat
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India
| | - Ahmad Ali
- Department of Life Sciences, University of Mumbai, Mumbai, India
| | - Mohammad Alaidarous
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Majmaah, Saudi Arabia
| | - Bader Alshehri
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Majmaah, Saudi Arabia
| | - Saeed Banwas
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Majmaah, Saudi Arabia
- Department of Biomedical Sciences, Oregon State University, Corvallis, OR, United States
| | - Randa Ismail
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Majmaah, Saudi Arabia
| | - Chukwuebuka Egbuna
- World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, Port Harcourt, Nigeria
- Department of Biochemistry, University of Port Harcourt, Port Harcourt, Nigeria
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49
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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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50
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Rizzo SA, Bartley O, Rosser AE, Newland B. Oxygen-glucose deprivation in neurons: implications for cell transplantation therapies. Prog Neurobiol 2021; 205:102126. [PMID: 34339808 DOI: 10.1016/j.pneurobio.2021.102126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/16/2021] [Accepted: 07/29/2021] [Indexed: 12/25/2022]
Abstract
Cell replacement therapies hold the potential to restore neuronal networks compromised by neurodegenerative diseases (such as Parkinson's disease or Huntington's disease), or focal tissue damage (via a stroke or spinal cord injury). Despite some promising results achieved to date, transplanted cells typically exhibit poor survival in the central nervous system, thus limiting therapeutic efficacy of the graft. Although cell death post-transplantation is likely to be multifactorial in causality, growing evidence suggests that the lack of vascularisation at the graft site, and the resulting ischemic host environment, may play a fundamental role in the fate of grafted cells. Herein, we summarise data showing how the deprivation of either oxygen, glucose, or both in combination, impacts the survival of neurons and review strategies which may improve graft survival in the central nervous system.
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Affiliation(s)
| | - Oliver Bartley
- Brain Repair Group, School of Biosciences, Cardiff University, Cardiff, CF10 3AX, Wales, UK
| | - Anne E Rosser
- Brain Repair Group, School of Biosciences, Cardiff University, Cardiff, CF10 3AX, Wales, UK; Neuroscience and Mental Health Institute and B.R.A.I.N Unit, Cardiff University, School of Medicine, Hadyn Ellis Building, Maindy Road, CF24 4HQ, Cardiff, UK
| | - Ben Newland
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, CF10 3NB, Wales, UK; Leibniz Institute for Polymer Research Dresden (IPF), Hohe Straße 6, 01069, Dresden, Germany.
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