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Zhang J, Chen X, Chai Y, Zhuo C, Xu Y, Xue T, Shao D, Tao Y, Li M. 3D Printing of a Vascularized Mini-Liver Based on the Size-Dependent Functional Enhancements of Cell Spheroids for Rescue of Liver Failure. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309899. [PMID: 38380546 PMCID: PMC11077657 DOI: 10.1002/advs.202309899] [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: 12/17/2023] [Indexed: 02/22/2024]
Abstract
The emerging stem cell-derived hepatocyte-like cells (HLCs) are the alternative cell sources of hepatocytes for treatment of highly lethal acute liver failure (ALF). However, the hostile local environment and the immature cell differentiation may compromise their therapeutic efficacy. To this end, human adipose-derived mesenchymal stromal/stem cells (hASCs) are engineered into different-sized multicellular spheroids and co-cultured with 3D coaxially and hexagonally patterned human umbilical vein endothelial cells (HUVECs) in a liver lobule-like manner to enhance their hepatic differentiation efficiency. It is found that small-sized hASC spheroids, with a diameter of ≈50 µm, show superior pro-angiogenic effects and hepatic differentiation compared to the other counterparts. The size-dependent functional enhancements are mediated by the Wnt signaling pathway. Meanwhile, co-culture of hASCs with HUVECs, at a HUVECs/hASCs seeding density ratio of 2:1, distinctly promotes hepatic differentiation and vascularization both in vitro and in vivo, especially when endothelial cells are patterned into hollow hexagons. After subcutaneous implantation, the mini-liver, consisting of HLC spheroids and 3D-printed interconnected vasculatures, can effectively improve liver regeneration in two ALF animal models through amelioration of local oxidative stress and inflammation, reduction of liver necrosis, as well as increase of cell proliferation, thereby showing great promise for clinical translation.
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Affiliation(s)
- Jiabin Zhang
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
- Guangdong Provincial Key Laboratory of Liver DiseaseGuangzhou510630China
| | - Xiaodie Chen
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
| | - Yurong Chai
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
| | - Chenya Zhuo
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
- Guangdong Provincial Key Laboratory of Liver DiseaseGuangzhou510630China
| | - Yanteng Xu
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
- Guangdong Provincial Key Laboratory of Liver DiseaseGuangzhou510630China
| | - Tiantian Xue
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
| | - Dan Shao
- Institute of Life SciencesSchool of MedicineSouth China University of TechnologyGuangzhou510006China
| | - Yu Tao
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
- Guangdong Provincial Key Laboratory of Liver DiseaseGuangzhou510630China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated Hospital, Sun Yat‐Sen UniversityGuangzhou510630China
- Guangdong Provincial Key Laboratory of Liver DiseaseGuangzhou510630China
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Chatree K, Sriboonaied P, Phetkong C, Wattananit W, Chanchao C, Charoenpanich A. Distinctions in bone matrix nanostructure, composition, and formation between osteoblast-like cells, MG-63, and human mesenchymal stem cells, UE7T-13. Heliyon 2023; 9:e15556. [PMID: 37153435 PMCID: PMC10160763 DOI: 10.1016/j.heliyon.2023.e15556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 05/09/2023] Open
Abstract
Osteoblast-like cells and human mesenchymal stem cells (hMSCs) are frequently employed as osteoprogenitor cell models for evaluating novel biomaterials in bone healing and tissue engineering. In this study, the characterization of UE7T-13 hMSCs and MG-63 human osteoblast-like cells was examined. Both cells can undergo osteogenesis and produce calcium extracellular matrix; however, calcium nodules produced by MG-63 lacked a central mass and appeared flatter than UE7T-13. The absence of growing calcium nodules in MG-63 was discovered by SEM-EDX to be associated with the formation of alternating layers of cells and calcium extracellular matrix. The nanostructure and composition analysis showed that UE7T-13 had a finer nanostructure of calcium nodules with a higher calcium/phosphate ratio than MG-63. Both cells expressed high intrinsic levels of collagen type I alpha 1 chain, while only UE7T-13 expressed high levels of alkaline phosphatase, biomineralization associated (ALPL). High ALP activity in UE7T-13 was not further enhanced by osteogenic induction, but in MG-63, low intrinsic ALP activity was greatly induced by osteogenic induction. These findings highlight the differences between the two immortal osteoprogenitor cell lines, along with some technical notes that should be considered while selecting and interpreting the pertinent in vitro model.
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Affiliation(s)
- Kamonwan Chatree
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand
| | - Patsawee Sriboonaied
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand
| | - Chinnatam Phetkong
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand
| | - Witoon Wattananit
- Scientific and Technological Equipment Centre, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand
| | - Chanpen Chanchao
- Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Adisri Charoenpanich
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand
- Corresponding author.
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Highly efficient fabrication of functional hepatocyte spheroids by a magnetic system for the rescue of acute liver failure. Biomaterials 2023; 294:122014. [PMID: 36709644 DOI: 10.1016/j.biomaterials.2023.122014] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/12/2023] [Accepted: 01/14/2023] [Indexed: 01/21/2023]
Abstract
Engineering hepatocytes as multicellular cell spheroids can improve their viability after implantation in vivo for effective rescue of the devastating acute liver failure (ALF). However, there is still a lack of straightforward methods for efficient generation of functional hepatocyte spheroids. In this study, a magnetic system, consisting of magnetic microwell arrays and magnet blocks, is developed to realize magnetically controlled 3D cell capture and spatial confinement-mediated cell aggregation. The cell spheroids with smaller size show superior hepatic functions than the larger-sized counterparts. Notably, the intrinsic magnetism of magnetic microwell arrays can regulate superoxide anions in hepatocyte spheroids and herein promote various biological processes, including antioxidation, hepatocyte-related functions, and pro-angiogenic potential. Ectopic implantation of the functional cell spheroids in ALF-challenged mice significantly prolongs the animal survival, ameliorates inflammation, and promotes liver regeneration. Hence, application of the magnetic system for generation of functionally enhanced hepatocyte spheroids holds great potential for clinical translation in the future.
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Nickel AC, Denton AR, Houston JE, Schweins R, Plivelic TS, Richtering W, Scotti A. Beyond simple self-healing: How anisotropic nanogels adapt their shape to their environment. J Chem Phys 2022; 157:194901. [DOI: 10.1063/5.0119527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The response of soft colloids to crowding depends sensitively on the particles’ compressibility. Nanogel suspensions provide model systems that are often studied to better understand the properties of soft materials and complex fluids from the formation of colloidal crystals to the flow of viruses, blood, or platelet cells in the body. Large spherical nanogels, when embedded in a matrix of smaller nanogels, have the unique ability to spontaneously deswell to match their size to that of the nanogel composing the matrix. In contrast to hard colloids, this self-healing mechanism allows for crystal formation without giving rise to point defects or dislocations. Here, we show that anisotropic ellipsoidal nanogels adapt both their size and their shape depending on the nature of the particles composing the matrix in which they are embedded. Using small-angle neutron scattering with contrast variation, we show that ellipsoidal nanogels become spherical when embedded in a matrix of spherical nanogels. In contrast, the anisotropy of the ellipsoid is enhanced when they are embedded in a matrix of anisotropic nanogels. Our experimental data are supported by Monte Carlo simulations that reproduce the trend of decreasing aspect ratio of ellipsoidal nanogels with increasing crowding by a matrix of spherical nanogels.
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Affiliation(s)
- Anne C. Nickel
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, Germany
| | - Alan R. Denton
- Department of Physics, North Dakota State University, Fargo, North Dakota 58108-6050, USA
| | | | - Ralf Schweins
- Institut Laue-Langevin ILL DS/LSS, 71 Avenue des Martyrs, F-38000 Grenoble, France
| | - Tomàs S. Plivelic
- MAX IV Laboratory, Lund University, P.O. Box 118, 22100 Lund, Sweden
| | - Walter Richtering
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, Germany
| | - Andrea Scotti
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, Germany
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Iravani K, Mehrabani D, Doostkam A, Azarpira N, Iranpour P, Bahador M, Mehravar S. Use of MRI to Assess the Regenerative Effects of Adipose Tissue Derived Mesenchymal Stem Cells in a Rabbit Cartilaginous Laryngeal Defect Model. Curr Ther Res Clin Exp 2022; 97:100682. [PMID: 35959231 PMCID: PMC9361331 DOI: 10.1016/j.curtheres.2022.100682] [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: 11/24/2021] [Accepted: 07/13/2022] [Indexed: 12/04/2022] Open
Abstract
Background Stenosis and scar formation after repair of laryngeal tissue defects are serious problems that can significantly influence a patient's quality of life. Objective In this study, we evaluated the use of magnetic resonance imaging to assess the efficacy of adipose tissue-derived mesenchymal stem cells (ASCs) on cartilaginous regeneration in an experimental rabbit model. Methods Ten male white Dutch rabbits each had a 5 mm cartilaginous defect created surgically in the right and left thyroid lamina. On the right side, ASCs labeled with iron oxide particles were infused. As a control, the left side was left untreated. Repair of the defects were then evaluated by direct observation, histological evaluation, and magnetic resonance imaging monitoring done on days 1, 7, 14, and 28. Results Histological examination revealed that compared with control, transplanted ASCs significantly increased cartilage regeneration (P ˂ 0.001), reduced inflammation (P ˂ 0.001), and fibrosis (P = 0.050). Magnetic resonance imaging tracking showed accurate placement and viability of the infused ASCs, as evidenced by low signal intensity onT2 weighted images at the level of the right thyroid cartilage. Conclusions Infusion of ASCs improved laryngeal regeneration of surgically induced cartilaginous defects while decreasing fibrous tissue formation in this in vivo rabbit model. Furthermore, magnetic resonance imaging was shown to be a useful, noninvasive method to track correct ASCs placement and viability in cartilage regeneration in this animal model.
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Affiliation(s)
- Kamyar Iravani
- Otolaryngology Research Center, Department of Otolaryngology, Shiraz University of Medical Sciences, Shiraz, Iran
- Address correspondence to: Kamyar Iravani, MD, Otolaryngology Research Center, Department of Otolaryngology, Shiraz University of Medical Sciences, Khalili Hospital, Khalili St, Shiraz, Iran, Postal code: 71936-16641.
| | - Davood Mehrabani
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aida Doostkam
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz Institute of Stem Cell and Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pooya Iranpour
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Bahador
- Otolaryngology Research Center, Department of Otolaryngology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soheila Mehravar
- Otolaryngology Research Center, Department of Otolaryngology, Shiraz University of Medical Sciences, Shiraz, Iran
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Zhang J, Zhang M, Lin R, Du Y, Wang L, Yao Q, Zannettino A, Zhang H. Chondrogenic preconditioning of mesenchymal stem/stromal cells within a magnetic scaffold for osteochondral repair. Biofabrication 2022; 14. [PMID: 35226893 DOI: 10.1088/1758-5090/ac5935] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/28/2022] [Indexed: 12/11/2022]
Abstract
Stem cell therapy using mesenchymal stromal/stem cells (MSCs) represents a novel approach to treating severe diseases, including osteoarthritis (OA). However, the therapeutic benefit of MSCs is highly dependent on their differentiation state, which can be regulated by many factors. Herein, three-dimensional (3D) magnetic scaffolds were successfully fabricated by incorporating magnetic nanoparticles (MNPs) into electrospun gelatin nanofibers. When positioned near a rotating magnet (f= 0.5 Hz), the magnetic scaffolds with the embedded MSCs were driven upward/downward in the culture container to induce mechanical stimulation to MSCs due to spatial confinement and fluid flow. The extracellular matrix-mimicking scaffold and the alternating magnetic field significantly enhanced chondrogenesis instead of osteogenesis. Furthermore, the fibre topography could be tuned with different compositions of the coating layer on MNPs, and the topography had a significant impact on MSC differentiation. Selective up-regulation of chondrogenesis-related genes (COL2A1andACAN) was found for the magnetic scaffolds with citric acid-coated MNPs (CAG). In contrast, osteogenesis-related genes (RUNX2andSPARC) were selectively and significantly up-regulated for the magnetic scaffolds with polyvinylpyrrolidone-coated MNPs (PVPG). Prior to implantation in vivo, chondrogenic preconditioning of MSCs within the CAG scaffolds under a dynamic magnetic field resulted in superior osteochondral repair. Hence, the magnetic scaffolds together with an in-house rotating magnet device could be a novel platform to initiate multiple stimuli on stem cell differentiation for effective repair of osteochondral defects.
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Affiliation(s)
- Jiabin Zhang
- Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou, 510275, CHINA
| | - Ming Zhang
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing , Jiangsu Province, China, Nangjing, Jiangsu, 210009, CHINA
| | - Rongcai Lin
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China, Nanjing, 210006, CHINA
| | - Yuguang Du
- Institute of Process Engineering Chinese Academy of Sciences, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China, Beijing, Beijing, 100190, CHINA
| | - Liming Wang
- Department of Orthopaedic Surgery Nanjing First Hospital, Nanjing Medical University, Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China, Nanjing, Jiangsu Province, 210006, CHINA
| | - Qingqiang Yao
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China, Nanjing, 210006, CHINA
| | - Andrew Zannettino
- Adelaide Medical School Research, The University of Adelaide, Adelaide, Australia, Adelaide, South Australia, 5005, AUSTRALIA
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, CA 91711, USA, 535 Watson Drive, Claremont, CA, USA, Claremont, California, 91711, UNITED STATES
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Akan E, Cetinkaya B, Kipmen-Korgun D, Ozmen A, Koksoy S, Mendilcioğlu İ, Sakinci M, Suleymanlar G, Korgun ET. Effects of amnion derived mesenchymal stem cells on fibrosis in a 5/6 nephrectomy model in rats. Biotech Histochem 2021; 96:594-607. [PMID: 33522283 DOI: 10.1080/10520295.2021.1875502] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Chronic kidney disease (CKD) is characterized by disruption of the glomerulus, tubule and vascular structures by renal fibrosis. Mesenchymal stem cells (MSC) ameliorate CKD. We investigated the effects of human amnion derived MSC (hAMSC) on fibrosis using expression of transforming growth factor beta (TGF-β), collagen type I (COL-1) and bone morphogenetic protein (BMP-7). We also investigated levels of urinary creatinine and nitrogen in CKD. We used a 5/6 nephrectomy (5/6 Nx) induced CKD model. We used 36 rats in six groups of six animals: sham group, 5/6 Nx group, 15 days after 5/6 Nx (5/6 Nx + 15) group, 30 days after 5/6 Nx (5/6 Nx + 30) group, transfer of hAMSC 15 days after 5/6 Nx (5/6 Nx + hAMSC + 15) group and transfer of hAMSC 30 days after 5/6 Nx (5/6 Nx + hAMSC + 30) group. We isolated 106 hAMSC from the amnion and transplanted them via the rat tail vein into the 5/6 Nx + hAMSC + 15 and 5/6 Nx + hAMSC + 30 groups. We measured the expression of BMP-7, COL-1 and TGF-β using western blot and immunohistochemistry, and their gene expressions were analyzed by quantitative real time PCR. TGF-β and COL-1 protein, and gene expressions were increased in the 5/6 Nx +30 group compared to the 5/6 Nx + hAMSC + 30 group. Conversely, both protein and gene expression of BMP-7 was increased in 5/6 Nx + hAMSC + 30 group compared to the 5/6 Nx groups. Increased TGF-β together with decreased BMP-7 expression may cause fibrosis by epithelial-mesenchymal transition due to chronic renal injury. Increased COL-1 levels cause accumulation of extracellular matrix in CKD. Levels of urea, creatinine and nitrogen were increased significantly in 5/6 Nx + 15 and 5/6 Nx + 30 groups compared to the hAMSC groups. We found that hAMSC ameliorate CKD.
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Affiliation(s)
- Ezgi Akan
- Department of Medical Biochemistry, Akdeniz University Medical School, Antalya, Turkey
| | - Busra Cetinkaya
- Department of Histology and Embryology, Akdeniz University, Medical School, Antalya, Turkey.,Department of Histology and Embryology, Medical Faculty, Bulent Ecevit University, Zonguldak, Turkey
| | - Dijle Kipmen-Korgun
- Department of Medical Biochemistry, Akdeniz University Medical School, Antalya, Turkey
| | - Aslı Ozmen
- Department of Histology and Embryology, Akdeniz University, Medical School, Antalya, Turkey
| | - Sadi Koksoy
- Department of Medical Microbiology and Immunology, Akdeniz University Medical School, Antalya, Turkey
| | - İnanc Mendilcioğlu
- Department of Obstetrics and Gynecology, Akdeniz University Medical School, Antalya, Turkey
| | - Mehmet Sakinci
- Department of Obstetrics and Gynecology, Akdeniz University Medical School, Antalya, Turkey
| | - Gultekin Suleymanlar
- Division of Nephrology, Department of Internal Medicine, Medical Faculty, Akdeniz University, Antalya, Turkey
| | - Emin Turkay Korgun
- Department of Histology and Embryology, Akdeniz University, Medical School, Antalya, Turkey
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Zhang J, Chan HF, Wang H, Shao D, Tao Y, Li M. Stem cell therapy and tissue engineering strategies using cell aggregates and decellularized scaffolds for the rescue of liver failure. J Tissue Eng 2021; 12:2041731420986711. [PMID: 35003615 PMCID: PMC8733710 DOI: 10.1177/2041731420986711] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/18/2020] [Indexed: 12/11/2022] Open
Abstract
Liver failure is a lethal condition with hepatocellular dysfunction, and liver transplantation is presently the only effective treatment. However, due to the limited availability of donors and the potential immune rejection, novel therapeutic strategies are actively sought to restore the normal hepatic architectures and functions, especially for livers with inherited metabolic dysfunctions or chronic diseases. Although the conventional cell therapy has shown promising results, the direct infusion of hepatocytes is hampered by limited hepatocyte sources, poor cell viability, and engraftment. Hence, this review mainly highlights the role of stem cells and progenitors as the alternative cell source and summarizes the potential approaches based on tissue engineering to improve the delivery efficiency of cells. Particularly, the underlying mechanisms for cell therapy using stem cells and progenitors are discussed in two main aspects: paracrine effect and cell differentiation. Moreover, tissue-engineering approaches using cell aggregates and decellularized liver scaffolds for bioengineering of functional hepatic constructs are discussed and compared in terms of the potential to replicate liver physiological structures. In the end, a potentially effective strategy combining the premium advantages of stem cell aggregates and decellularized liver scaffolds is proposed as the future direction of liver tissue engineering and regeneration.
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Affiliation(s)
- Jiabin Zhang
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dan Shao
- Institutes of Life Sciences, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou, China
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Zhang J, Yun S, Karami A, Jing B, Zannettino A, Du Y, Zhang H. 3D printing of a thermosensitive hydrogel for skin tissue engineering: A proof of concept study. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bprint.2020.e00089] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Doolin MT, Moriarty RA, Stroka KM. Mechanosensing of Mechanical Confinement by Mesenchymal-Like Cells. Front Physiol 2020; 11:365. [PMID: 32390868 PMCID: PMC7193100 DOI: 10.3389/fphys.2020.00365] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 03/30/2020] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs) and tumor cells have the unique capability to migrate out of their native environment and either home or metastasize, respectively, through extremely heterogeneous environments to a distant location. Once there, they can either aid in tissue regrowth or impart an immunomodulatory effect in the case of MSCs, or form secondary tumors in the case of tumor cells. During these journeys, cells experience physically confining forces that impinge on the cell body and the nucleus, ultimately causing a multitude of cellular changes. Most drastically, confining individual MSCs within hydrogels or confining monolayers of MSCs within agarose wells can sway MSC lineage commitment, while applying a confining compressive stress to metastatic tumor cells can increase their invasiveness. In this review, we seek to understand the signaling cascades that occur as cells sense confining forces and how that translates to behavioral changes, including elongated and multinucleated cell morphologies, novel migrational mechanisms, and altered gene expression, leading to a unique MSC secretome that could hold great promise for anti-inflammatory treatments. Through comparison of these altered behaviors, we aim to discern how MSCs alter their lineage selection, while tumor cells may become more aggressive and invasive. Synthesizing this information can be useful for employing MSCs for therapeutic approaches through systemic injections or tissue engineered grafts, and developing improved strategies for metastatic cancer therapies.
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Affiliation(s)
- Mary T. Doolin
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, United States
| | - Rebecca A. Moriarty
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, United States
| | - Kimberly M. Stroka
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, United States
- Maryland Biophysics Program, University of Maryland, College Park, College Park, MD, United States
- Center for Stem Cell Biology & Regenerative Medicine, University of Maryland, Baltimore, Baltimore, MD, United States
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, Baltimore, MD, United States
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Zhang J, Yun S, Du Y, Zannettino ACW, Zhang H. Fabrication of a Cartilage Patch by Fusing Hydrogel-Derived Cell Aggregates onto Electrospun Film. Tissue Eng Part A 2020; 26:863-871. [PMID: 32008467 DOI: 10.1089/ten.tea.2019.0318] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Irregular defects at sites of degenerative cartilage often accompany osteoarthritis (OA). The development of novel cell-/biomaterial-based cartilage tissue engineering methods to address these defects may provide a durable approach to hinder the development of OA. In this study, we fabricated a neocartilage patch by fusing cell aggregates onto a biodegradable nanofiber film for degenerative cartilage repair. Human mesenchymal stem/stromal cell (MSC) aggregates were prepared and induced for chondrogenesis in a thermosensitive hydrogel, poly (N-isopropylacrylamide-co-acrylic acid (p(NIPAAm-AA)). Cell migration mediated the formation of cell aggregates in the thermosensitive hydrogel and led to a cell-dense hollow shell structure. The chondrocytes derived from MSC aggregates in the hydrogel were evidenced by the expression of chondrogenesis-related genes and extracellular matrices. They were fused onto an electrospun film by mechanical force and spatial confinement to generate a neo-cartilage patch. The fabricated neocartilage patches may be able to integrate into the irregular defects under compressive stresses and achieve cartilage regeneration in vivo. Impact statement The formation of human mesenchymal stem/stromal cells aggregates in thermosensitive hydrogels was mechanistically examined. These in situ formed cell aggregates with enhanced chondrogenesis were bioengineered into a neocartilage patch for regeneration of superficial irregular cartilage defects.
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Affiliation(s)
- Jiabin Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, Australia
| | - Seonho Yun
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, Australia
| | - Yuguang Du
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | | | - Hu Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, Australia.,Henry E. Riggs School of Applied Life Sciences, Keck Graduate Institute, Claremont, California, USA
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Agrawal G, Agrawal R. Functional Microgels: Recent Advances in Their Biomedical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801724. [PMID: 30035853 DOI: 10.1002/smll.201801724] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 06/11/2018] [Indexed: 06/08/2023]
Abstract
Here, a spotlight is shown on aqueous microgel particles which exhibit a great potential for various biomedical applications such as drug delivery, cell imaging, and tissue engineering. Herein, different synthetic methods to develop microgels with desirable functionality and properties along with degradable strategies to ensure their renal clearance are briefly presented. A special focus is given on the ability of microgels to respond to various stimuli such as temperature, pH, redox potential, magnetic field, light, etc., which helps not only to adjust their physical and chemical properties, and degradability on demand, but also the release of encapsulated bioactive molecules and thus making them suitable for drug delivery. Furthermore, recent developments in using the functional microgels for cell imaging and tissue regeneration are reviewed. The results reviewed here encourage the development of a new class of microgels which are able to intelligently perform in a complex biological environment. Finally, various challenges and possibilities are discussed in order to achieve their successful clinical use in future.
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Affiliation(s)
- Garima Agrawal
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, Saharanpur, 247001, Uttar Pradesh, India
| | - Rahul Agrawal
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892-1500, USA
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