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Hong J, Zheng W, Wang X, Hao Y, Cheng G. Biomedical polymer scaffolds mimicking bone marrow niches to advance in vitro expansion of hematopoietic stem cells. J Mater Chem B 2022; 10:9755-9769. [PMID: 36444902 DOI: 10.1039/d2tb01211a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hematopoietic stem cell (HSC) transplantation provides an effective platform for the treatment of hematological disorders. However, the donor shortage of HSCs and immune responses severely restrict the clinical applications of HSCs. Compared to allogeneic transplantation, autogenous transplantation poses less risk to the immune system, but the problem associated with insufficient HSCs remains a substantial challenge. A significant strategy for obtaining sufficient HSCs is to promote the expansion of HSCs. In vivo, a bone marrow microenvironment supports the survival and hematopoiesis of HSCs. Therefore, it is crucial to establish a platform that mimics the features of a bone marrow microenvironment for the in vitro expansion of HSCs. Three-dimensional (3D) scaffolds have emerged as the most powerful tools to mimic cellular microenvironments for the growth and proliferation of stem cells. Biomedical polymers have been widely utilized as cell scaffolds due to their advantageous features including favorable biocompatibility, biodegradability, as well as adjustable physical and chemical properties. This review focuses on recent advances in the study of biomedical polymer scaffolds that mimic bone marrow microenvironments for the in vitro expansion of HSCs. Bone marrow transplantation and microenvironments are first introduced. Then, biomedical polymer scaffolds for the expansion of HSCs and future prospects are summarized and discussed.
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Affiliation(s)
- Jing Hong
- Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Guangdong 528200, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu 215123, China. .,School of Nano-Tech and Nano Bionics, University of Science and Technology of China, Anhui 230026, China
| | - Wenlong Zheng
- Suzhou Kowloon Hospital Shanghai Jiao Tong University School of Medicine, Jiangsu 215021, China
| | | | - Ying Hao
- Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Guangdong 528200, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu 215123, China. .,School of Nano-Tech and Nano Bionics, University of Science and Technology of China, Anhui 230026, China
| | - Guosheng Cheng
- Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Guangdong 528200, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Jiangsu 215123, China. .,School of Nano-Tech and Nano Bionics, University of Science and Technology of China, Anhui 230026, China
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2
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McInnes AD, Moser MAJ, Chen X. Preparation and Use of Decellularized Extracellular Matrix for Tissue Engineering. J Funct Biomater 2022; 13:jfb13040240. [PMID: 36412881 PMCID: PMC9680265 DOI: 10.3390/jfb13040240] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/22/2022] [Accepted: 11/05/2022] [Indexed: 11/16/2022] Open
Abstract
The multidisciplinary fields of tissue engineering and regenerative medicine have the potential to revolutionize the practise of medicine through the abilities to repair, regenerate, or replace tissues and organs with functional engineered constructs. To this end, tissue engineering combines scaffolding materials with cells and biologically active molecules into constructs with the appropriate structures and properties for tissue/organ regeneration, where scaffolding materials and biomolecules are the keys to mimic the native extracellular matrix (ECM). For this, one emerging way is to decellularize the native ECM into the materials suitable for, directly or in combination with other materials, creating functional constructs. Over the past decade, decellularized ECM (or dECM) has greatly facilitated the advance of tissue engineering and regenerative medicine, while being challenged in many ways. This article reviews the recent development of dECM for tissue engineering and regenerative medicine, with a focus on the preparation of dECM along with its influence on cell culture, the modification of dECM for use as a scaffolding material, and the novel techniques and emerging trends in processing dECM into functional constructs. We highlight the success of dECM and constructs in the in vitro, in vivo, and clinical applications and further identify the key issues and challenges involved, along with a discussion of future research directions.
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Affiliation(s)
- Adam D. McInnes
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
- Correspondence: ; Tel.: +1-306-966-5435
| | - Michael A. J. Moser
- Department of Surgery, Health Sciences Building, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada
| | - Xiongbiao Chen
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
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3
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Santos SC, Custódio CA, Mano JF. Human Protein-Based Porous Scaffolds as Platforms for Xeno-Free 3D Cell Culture. Adv Healthc Mater 2022; 11:e2102383. [PMID: 35182104 DOI: 10.1002/adhm.202102383] [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] [Received: 11/02/2021] [Revised: 02/09/2022] [Indexed: 12/12/2022]
Abstract
Extracellular matrix and protein-based biomaterials emerge as attractive sources to produce scaffolds due to their great properties regarding biocompatibility and bioactivity. In addition, there are concerns regarding the use of animal-derived supplements in cell culture not only due to the risk of transmission of xenogeneic contaminants and antigens but also due to ethical issues associated with collection methods. Herein, a novel human protein-derived porous scaffold produced from platelet lysates (PL) as platform for xeno-free 3D cell culture has been proposed. Human PL are chemically modified with methacryloyl groups (PLMA) to make them photocrosslinkable and used as precursor material to produce PLMA-based sponges. The herein reported human-based sponges have highly tunable morphology and mechanical properties, with an internal porous structure and Young's modulus dependent on the concentration of the polymer. Human adipose-derived stem cells (hASCs) are cultured on top of PLMA sponges to validate their use for 3D cell culture in xeno-free conditions. After 14 days hASCs remained viable, and results show that cells are able to proliferate during time even in the absence of animal-derived supplementation. This study reveals for the first time that such scaffolds can be promising platforms for culture of human cells avoiding the use of any animal-derived supplement.
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Affiliation(s)
- Sara C. Santos
- Department of Chemistry CICECO University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Catarina A. Custódio
- Department of Chemistry CICECO University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - João F. Mano
- Department of Chemistry CICECO University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
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4
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Liu B, Tao C, Wu Z, Yao H, Wang DA. Engineering strategies to achieve efficient in vitro expansion of haematopoietic stem cells: development and improvement. J Mater Chem B 2022; 10:1734-1753. [DOI: 10.1039/d1tb02706a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Haematopoietic stem cells are the basis for building and maintaining lifelong haematopoietic mechanisms and important resources for the treatment of blood disorders. Haematopoietic niches are microenvironment in the body where...
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Wang M, Li B, Liu Y, Tang L, Zhang Y, Xie Q. A Novel Bionic Extracellular Matrix Polymer Scaffold Enhanced by Calcium Silicate for Bone Tissue Engineering. ACS OMEGA 2021; 6:35727-35737. [PMID: 34984303 PMCID: PMC8717537 DOI: 10.1021/acsomega.1c05623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
A novel porous calcium silicate (CS)-enhanced small intestinal submucosa (SIS) scaffold was prepared by freeze-drying to mimic the natural extracellular matrix environment for bone tissue engineering. The micro-morphology, physicochemical properties, biological characteristics, and effects on osteogenic differentiation in vitro were explored; the effects on promoting bone formation in vivo were evaluated. The composite scaffold had an ideal three-dimensional porous structure. The amount of calcium silicate played a significant role in improving mechanical properties and promoting osteogenic differentiation. The SIS/2CS scaffold promoted proliferation and osteogenic differentiation in human bone marrow mesenchymal stem cells; it also significantly increased osteogenesis in vivo. This novel composite polymer scaffold has potential applications in bone tissue engineering.
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Affiliation(s)
- Mei Wang
- Department
of Prosthodontics, Peking University School
and Hospital of Stomatology & National Center of Stomatology &National
Clinical Research Center for Oral Diseases & National Engineering
Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Bowen Li
- Department
of Prosthodontics, Peking University School
and Hospital of Stomatology & National Center of Stomatology &National
Clinical Research Center for Oral Diseases & National Engineering
Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Yuhua Liu
- Department
of Prosthodontics, Peking University School
and Hospital of Stomatology & National Center of Stomatology &National
Clinical Research Center for Oral Diseases & National Engineering
Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Lin Tang
- Department
of Prosthodontics, Peking University School
and Hospital of Stomatology & National Center of Stomatology &National
Clinical Research Center for Oral Diseases & National Engineering
Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Yi Zhang
- Department
of General Dentistry II, Peking University
School and Hospital of Stomatology & National Center of Stomatology
&National Clinical Research Center for Oral Diseases & National
Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Qiufei Xie
- Department
of Prosthodontics, Peking University School
and Hospital of Stomatology & National Center of Stomatology &National
Clinical Research Center for Oral Diseases & National Engineering
Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
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Tavakol DN, Fleischer S, Vunjak-Novakovic G. Harnessing organs-on-a-chip to model tissue regeneration. Cell Stem Cell 2021; 28:993-1015. [PMID: 34087161 DOI: 10.1016/j.stem.2021.05.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Tissue engineering has markedly matured since its early beginnings in the 1980s. In addition to the original goal to regenerate damaged organs, the field has started to explore modeling of human physiology "in a dish." Induced pluripotent stem cell (iPSC) technologies now enable studies of organ regeneration and disease modeling in a patient-specific context. We discuss the potential of "organ-on-a-chip" systems to study regenerative therapies with focus on three distinct organ systems: cardiac, respiratory, and hematopoietic. We propose that the combinatorial studies of human tissues at these two scales would help realize the translational potential of tissue engineering.
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Affiliation(s)
| | - Sharon Fleischer
- Department of Biomedical Engineering, Columbia University, New York, NY
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, NY; Department of Medicine, Columbia University, New York, NY.
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7
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Chen Y, Fei W, Zhao Y, Wang F, Zheng X, Luan X, Zheng C. Sustained delivery of 17β-estradiol by human amniotic extracellular matrix (HAECM) scaffold integrated with PLGA microspheres for endometrium regeneration. Drug Deliv 2020; 27:1165-1175. [PMID: 32755258 PMCID: PMC7470125 DOI: 10.1080/10717544.2020.1801891] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/16/2020] [Accepted: 07/22/2020] [Indexed: 01/06/2023] Open
Abstract
The endometrial injury usually results in intrauterine adhesions (IUAs). However, there is no effective treatment to promote the regeneration of the endometrium currently. The decellularized amnion membrane (AM) is a promising material in human tissue repair and regeneration due to its biocompatibility, biodegradability, as well as the preservation of abundant bioactive components. Here, an innovative drug-delivering system based on human amniotic extracellular matrix (HAECM) scaffolds were developed to facilitate endometrium regeneration. The 17β-estradiol (E2) loaded PLGA microspheres (E2-MS) were well dispersed in the scaffolds without altering their high porosity. E2 released from E2-MS-HAECM scaffolds in vitro showed a decreased initial burst release followed with a sustained release for 21 days, which coincided with the female menstrual cycle. Results of cell proliferation suggested E2-MS-HAECM scaffolds had good biocompatibility and provided more biologic guidance of endometrial cell proliferation except for mechanical supports. Additionally, the mRNA expression of growth factors in endometrial cells indicated that HAECM scaffolds could upregulate the expression of EGF and IGF-1 to achieve endometrium regeneration. Therefore, these advantages provide the drug-loaded bioactive scaffolds with new choices for the treatments of IUAs.
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Affiliation(s)
- Yue Chen
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Weidong Fei
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Yunchun Zhao
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Fengmei Wang
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Xiaoling Zheng
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Xiaofei Luan
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Caihong Zheng
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
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8
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Kim JE, Lee EJ, Wu Y, Kang YG, Shin JW. The combined effects of hierarchical scaffolds and mechanical stimuli on ex vivo expansion of haematopoietic stem/progenitor cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:586-593. [PMID: 30831031 DOI: 10.1080/21691401.2019.1573180] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We describe the ex vivo expansion of haematopoietic stem/progenitor cells (HSPCs) with consideration of their eventual in-vivo niche. We firstly fabricated hierarchically structured scaffolds (lattices derived via three-dimensional plotting combined with electrospun submicron fibers coated with vitronectin to increase cell affinity). We also applied intermittent hydrostatic pressure (IHP) to mimic the physical environment of the in vivo niche. In the absence of mechanical stimuli, the cell phenotype (CD34+, CD34+CD38-) remained excellent in the vitronectin-treated group. Two IHP regimens were tested; optimally, cells were pressurized (20 kPa) for 2 min and then rested for 13 min. On day 7 of culture, the total cell number had increased 21.2-fold and that of CD34+ cells 10.94-fold. CD34+ and CD34+CD38- cells constituted 44.50 and 44.07% of total cells, respectively. Colony-forming counts and the long-term culture-initiating cell assay showed that clonogenic potential was greatly improved under our experimental conditions. Scaffolds with hierarchical structures were valuable in this context. Furthermore, ex vivo expansion of HSPCs was improved by physical stimulation.
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Affiliation(s)
- Ji Eun Kim
- a Department of Biomedical Engineering , Inje University , Gimhae , Gyeongsangnam-do , Republic of Korea
| | - Eun Jin Lee
- a Department of Biomedical Engineering , Inje University , Gimhae , Gyeongsangnam-do , Republic of Korea
| | - Yanru Wu
- b Department of Health Science and Technology , Inje University , Gimhae , Gyeongsangnam-do , Republic of Korea
| | - Yun Gyeong Kang
- a Department of Biomedical Engineering , Inje University , Gimhae , Gyeongsangnam-do , Republic of Korea
| | - Jung-Woog Shin
- a Department of Biomedical Engineering , Inje University , Gimhae , Gyeongsangnam-do , Republic of Korea.,c Cardiovascular and Metabolic Disease Center/Institute of Aged Life Redesign/UHARC , Inje University , Gimhae , Republic of Korea
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9
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Edri R, Gal I, Noor N, Harel T, Fleischer S, Adadi N, Green O, Shabat D, Heller L, Shapira A, Gat-Viks I, Peer D, Dvir T. Personalized Hydrogels for Engineering Diverse Fully Autologous Tissue Implants. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803895. [PMID: 30406960 DOI: 10.1002/adma.201803895] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/27/2018] [Indexed: 05/22/2023]
Abstract
Despite incremental improvements in the field of tissue engineering, no technology is currently available for producing completely autologous implants where both the cells and the scaffolding material are generated from the patient, and thus do not provoke an immune response that may lead to implant rejection. Here, a new approach is introduced to efficiently engineer any tissue type, which its differentiation cues are known, from one small tissue biopsy. Pieces of omental tissues are extracted from patients and, while the cells are reprogrammed to become induced pluripotent stem cells, the extracellular matrix is processed into an immunologically matching, thermoresponsive hydrogel. Efficient cell differentiation within a large 3D hydrogel is reported, and, as a proof of concept, the generation of functional cardiac, cortical, spinal cord, and adipogenic tissue implants is demonstrated. This versatile bioengineering approach may assist to regenerate any tissue and organ with a minimal risk for immune rejection.
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Affiliation(s)
- Reuven Edri
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Idan Gal
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Nadav Noor
- Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Tom Harel
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Sharon Fleischer
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Nofar Adadi
- Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Ori Green
- School of Chemistry, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Doron Shabat
- School of Chemistry, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Lior Heller
- Department of Plastic Surgery, Assaf Harofeh MC, Beer Ya'akov, Zerifin, 70300, Israel
| | - Assaf Shapira
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Irit Gat-Viks
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Dan Peer
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
- Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Tal Dvir
- School for Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
- Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, 69978, Israel
- Sagol Center for Regenerative Biotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
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Liu S, Mou S, Zhou C, Guo L, Zhong A, Yang J, Yuan Q, Wang J, Sun J, Wang Z. Off-the-Shelf Biomimetic Graphene Oxide-Collagen Hybrid Scaffolds Wrapped with Osteoinductive Extracellular Matrix for the Repair of Cranial Defects in Rats. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42948-42958. [PMID: 30421913 DOI: 10.1021/acsami.8b11071] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydrogels such as type I collagen (COL) have been widely studied in bone tissue repair, whereas their weak mechanical strength has limited their clinical application. By adding graphene oxide (GO) nanosheets, researchers have successfully improved the mechanical properties and biocompatibility of the hydrogels. However, for large bone defects, the osteoinductive and cell adhesion ability of the GO hybrid hydrogels need to be improved. Mesenchymal stem cell (MSC) secreted extracellular matrix (ECM), which is an intricate network, could provide a biomimetic microenvironment and functional molecules that enhance the cell proliferation and survival rate. To synergize the advantages of MSC-ECM with GO-COL hybrid implants, we developed a novel ECM scaffold construction method. First, an osteoinductive extracellular matrix (OiECM) was created by culturing osteodifferentiated bone marrow mesenchymal stem cells (BMSCs) for 21 days. Then, the GO-COL scaffold was fully wrapped with the OiECM to construct the OiECM-GO-COL composite for implantation. The morphology, physical properties, biocompatibility, and osteogenic performance of the OiECM-GO-COL implants were assessed in vitro and in vivo (5 mm rat cranial defect model). Both gene expression and cell level assessments suggested that the BMSCs cultured on OiECM-GO-COL implants had a higher proliferation rate and osteogenic ability compared to the COL or GO-COL groups. In vivo results showed that the OiECM-GO-COL implants achieved better repair effects in a rat critical cranial defect model, whereas bone formation in other groups was limited. This study provides a promising strategy, which greatly improves the osteogenic ability and biocompatibility of the GO hydrogels without the procedure of seeding and culturing MSCs on scaffolds in vitro, demonstrating its potential as an off-the-shelf method for bone tissue engineering.
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Affiliation(s)
- Shaokai Liu
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Shan Mou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Chuchao Zhou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Liang Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Aimei Zhong
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Jie Yang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Quan Yuan
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Jiecong Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , 1277 Jiefang Avenue , Wuhan 430022 , China
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Abstract
Diabetes can be treated with β cell replacement therapy, where a patient is transplanted with cadaveric human islets to restore glycemic control. Despite this being an effective treatment, the process of isolating islets from the pancreas requires collagenase digestion which disrupts the islet extracellular matrix (ECM) and activates anoikis-mediated apoptosis. To improve islet survival in culture and after transplantation, the islet microenvironment may be enhanced with the addition of ECM components which are lost during isolation. Furthermore, novel β cell replacement strategies, such as stem cell-derived beta cell (SCβC) treatments or alternative transplant sites and devices, could benefit from a better understanding of how β cells interact with ECM. In this mini-review, we discuss the current understanding of the pancreas and islet ECM composition and review decellularization approaches to generate a native pancreatic ECM scaffold for use in both islet and SCβC culture and transplantation.
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Affiliation(s)
- Daniel M Tremmel
- a Division of Transplantation, Department of Surgery , University of Wisconsin-Madison School of Medicine and Public Health , Madison , Wisconsin , 53705 , USA
| | - Jon S Odorico
- a Division of Transplantation, Department of Surgery , University of Wisconsin-Madison School of Medicine and Public Health , Madison , Wisconsin , 53705 , USA
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Wertheim L, Shapira A, Amir RJ, Dvir T. A microfluidic chip containing multiple 3D nanofibrous scaffolds for culturing human pluripotent stem cells. NANOTECHNOLOGY 2018; 29:13LT01. [PMID: 29384490 DOI: 10.1088/1361-6528/aaabf2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In microfluidics-based lab-on-a-chip systems, which are used for investigating the effect of drugs and growth factors on cells, the latter are usually cultured within the device's channels in two-dimensional, and not in their optimal three-dimensional (3D) microenvironment. Herein, we address this shortfall by designing a microfluidic system, comprised of two layers. The upper layer of the system consists of multiple channels generating a gradient of soluble factors. The lower layer is comprised of multiple wells, each deposited with 3D, nanofibrous scaffold. We first used a mathematical model to characterize the fluid flow within the system. We then show that induced pluripotent stem cells can be seeded within the 3D scaffolds and be exposed to a well-mixed gradient of soluble factors. We believe that utilizing such system may enable in the future to identify new differentiation factors, investigate drug toxicity, and eventually allow to perform analyses on patient-specific tissues, in order to fit the appropriate combination and concentration of drugs.
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Affiliation(s)
- Lior Wertheim
- The Laboratory for Tissue Engineering and Regenerative Medicine, School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Science, Tel Aviv University, Tel Aviv 6997801, Israel. Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
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13
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Stem cell therapy for abrogating stroke-induced neuroinflammation and relevant secondary cell death mechanisms. Prog Neurobiol 2017; 158:94-131. [PMID: 28743464 DOI: 10.1016/j.pneurobio.2017.07.004] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 12/13/2022]
Abstract
Ischemic stroke is a leading cause of death worldwide. A key secondary cell death mechanism mediating neurological damage following the initial episode of ischemic stroke is the upregulation of endogenous neuroinflammatory processes to levels that destroy hypoxic tissue local to the area of insult, induce apoptosis, and initiate a feedback loop of inflammatory cascades that can expand the region of damage. Stem cell therapy has emerged as an experimental treatment for stroke, and accumulating evidence supports the therapeutic efficacy of stem cells to abrogate stroke-induced inflammation. In this review, we investigate clinically relevant stem cell types, such as hematopoietic stem cells (HSCs), mesenchymal stem cells (MSCs), endothelial progenitor cells (EPCs), very small embryonic-like stem cells (VSELs), neural stem cells (NSCs), extraembryonic stem cells, adipose tissue-derived stem cells, breast milk-derived stem cells, menstrual blood-derived stem cells, dental tissue-derived stem cells, induced pluripotent stem cells (iPSCs), teratocarcinoma-derived Ntera2/D1 neuron-like cells (NT2N), c-mycER(TAM) modified NSCs (CTX0E03), and notch-transfected mesenchymal stromal cells (SB623), comparing their potential efficacy to sequester stroke-induced neuroinflammation and their feasibility as translational clinical cell sources. To this end, we highlight that MSCs, with a proven track record of safety and efficacy as a transplantable cell for hematologic diseases, stand as an attractive cell type that confers superior anti-inflammatory effects in stroke both in vitro and in vivo. That stem cells can mount a robust anti-inflammatory action against stroke complements the regenerative processes of cell replacement and neurotrophic factor secretion conventionally ascribed to cell-based therapy in neurological disorders.
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Fleischer S, Feiner R, Dvir T. Cardiac tissue engineering: from matrix design to the engineering of bionic hearts. Regen Med 2017; 12:275-284. [PMID: 28498093 DOI: 10.2217/rme-2016-0150] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The field of cardiac tissue engineering aims at replacing the scar tissue created after a patient has suffered from a myocardial infarction. Various technologies have been developed toward fabricating a functional engineered tissue that closely resembles that of the native heart. While the field continues to grow and techniques for better tissue fabrication continue to emerge, several hurdles still remain to be overcome. In this review we will focus on several key advances and recent technologies developed in the field, including biomimicking the natural extracellular matrix structure and enhancing the transfer of the electrical signal. We will also discuss recent developments in the engineering of bionic cardiac tissues which integrate the fields of tissue engineering and electronics to monitor and control tissue performance.
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Affiliation(s)
- Sharon Fleischer
- The Laboratory for Tissue Engineering & Regenerative Medicine, Department of Molecular Microbiology & Biotechnology, George S. Wise Faculty of Life Science, Tel Aviv University, Tel Aviv 69978, Israel.,Center for Nanoscience & Nanotechnology, Tel Aviv University, Tel Aviv 69978, Israel
| | - Ron Feiner
- The Laboratory for Tissue Engineering & Regenerative Medicine, Department of Molecular Microbiology & Biotechnology, George S. Wise Faculty of Life Science, Tel Aviv University, Tel Aviv 69978, Israel.,Center for Nanoscience & Nanotechnology, Tel Aviv University, Tel Aviv 69978, Israel
| | - Tal Dvir
- The Laboratory for Tissue Engineering & Regenerative Medicine, Department of Molecular Microbiology & Biotechnology, George S. Wise Faculty of Life Science, Tel Aviv University, Tel Aviv 69978, Israel.,Center for Nanoscience & Nanotechnology, Tel Aviv University, Tel Aviv 69978, Israel.,Department of Materials Science & Engineering, Tel Aviv University, Tel Aviv 69978, Israel
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