51
|
Le NNT, Liu TL, Johnston J, Krutty JD, Templeton KM, Harms V, Dias A, Le H, Gopalan P, Murphy WL. Customized hydrogel substrates for serum-free expansion of functional hMSCs. Biomater Sci 2020; 8:3819-3829. [PMID: 32543628 PMCID: PMC7436193 DOI: 10.1039/d0bm00540a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We describe a screening approach to identify customized substrates for serum-free human mesenchymal stromal cell (hMSC) culture. In particular, we combine a biomaterials screening approach with design of experiments (DOE) and multivariate analysis (MVA) to understand the effects of substrate stiffness, substrate adhesivity, and media composition on hMSC behavior in vitro. This approach enabled identification of poly(ethylene glycol)-based and integrin binding hydrogel substrate compositions that supported functional hMSC expansion in multiple serum-containing and serum-free media, as well as the expansion of MSCs from multiple, distinct sources. The identified substrates were compatible with standard thaw, seed, and harvest protocols. Finally, we used MVA on the screening data to reveal the importance of serum and substrate stiffness on hMSC expansion, highlighting the need for customized cell culture substrates in optimal hMSC biomanufacturing processes.
Collapse
Affiliation(s)
- Ngoc Nhi T Le
- Materials Science Program, University of Wisconsin-Madison, Madison, WI, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
52
|
Barros N, Kim H, Goudie MJ, Lee K, Bandaru P, Banton EA, Sarikhani E, Sun W, Zhang S, Cho HJ, Hartel MC, Ostrovidov S, Ahadian S, Hussain S, Ashammakhi N, Dokmeci MR, Herculano RD, Lee J, Khademhosseini A. Biofabrication of endothelial cell, dermal fibroblast, and multilayered keratinocyte layers for skin tissue engineering. Biofabrication 2020; 13. [PMID: 32650324 DOI: 10.1088/1758-5090/aba503] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/10/2020] [Indexed: 01/10/2023]
Abstract
The skin serves a substantial number of physiological purposes and is exposed to numerous biological and chemical agents owing to its large surface area and accessibility. Yet, current skin models are limited in emulating the multifaceted functions of skin tissues due to a lack of effort on the optimization of biomaterials and techniques at different skin layers for building skin frameworks. Here, we use biomaterial-based approaches and bioengineered techniques to develop a 3D skin model with layers of endothelial cell networks, dermal fibroblasts, and multilayered keratinocytes. Analysis of mechanical properties of gelatin methacryloyl (GelMA)-based bioinks mixed with different portions of alginate revealed bioprinted endothelium could be better modeled to optimize endothelial cell viability with a mixture of 7.5% GelMA and 2% alginate. Matrix stiffness plays a crucial role in modulating produced levels of Pro-Collagen I alpha-1 and matrix metalloproteinase-1 in human dermal fibroblasts and affecting their viability, proliferation, and spreading. Moreover, seeding human keratinocytes with gelatin-coating multiple times proves helpful in reducing culture time to create multilayered keratinocytes while maintaining their viability. The ability to fabricate selected biomaterials for each layer of skin tissues has implications in the biofabrication of skin systems for regenerative medicine and disease modeling.
Collapse
Affiliation(s)
- Natan Barros
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, UNITED STATES
| | - Hanjun Kim
- University of California Los Angeles, Los Angeles, California, 90095, UNITED STATES
| | - Marcus J Goudie
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, UNITED STATES
| | - KangJu Lee
- Bioengineering, UCLA, Los Angeles, California, UNITED STATES
| | - Praveen Bandaru
- Bioengineering, UCLA, Los Angeles, California, UNITED STATES
| | - Ethan A Banton
- Bioengineering, UCLA, Los Angeles, California, UNITED STATES
| | | | - Wujin Sun
- Bioengineering, UCLA, Los Angeles, California, UNITED STATES
| | - Shiming Zhang
- Bioengineering, UCLA, Los Angeles, California, UNITED STATES
| | - Hyun-Jong Cho
- Pharmacy, Kangwon National University, Chuncheon, Gangwon-do, Korea (the Republic of)
| | - Martin C Hartel
- Bioengineering, UCLA, Los Angeles, California, UNITED STATES
| | | | - Samad Ahadian
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, UNITED STATES
| | - Saber Hussain
- , Molecular Bioeffects Branch, Wright Patterson AFB, Ohio, UNITED STATES
| | - Nureddin Ashammakhi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California - Los Angeles, Los Angeles, California, UNITED STATES
| | - Mehmet R Dokmeci
- Radiology, UCLA, CNSI 4528, 570 Westwood Plaza, Los Angeles, California, 90095, UNITED STATES
| | | | - Junmin Lee
- Terasaki Institute, Los Angeles, California, UNITED STATES
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics, UCLA, Los Angeles, California, UNITED STATES
| |
Collapse
|
53
|
Neves MI, Moroni L, Barrias CC. Modulating Alginate Hydrogels for Improved Biological Performance as Cellular 3D Microenvironments. Front Bioeng Biotechnol 2020; 8:665. [PMID: 32695759 PMCID: PMC7338591 DOI: 10.3389/fbioe.2020.00665] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 05/28/2020] [Indexed: 01/09/2023] Open
Abstract
The rational choice and design of biomaterials for biomedical applications is crucial for successful in vitro and in vivo strategies, ultimately dictating their performance and potential clinical applications. Alginate, a marine-derived polysaccharide obtained from seaweeds, is one of the most widely used polymers in the biomedical field, particularly to build three dimensional (3D) systems for in vitro culture and in vivo delivery of cells. Despite their biocompatibility, alginate hydrogels often require modifications to improve their biological activity, namely via inclusion of mammalian cell-interactive domains and fine-tuning of mechanical properties. These modifications enable the addition of new features for greater versatility and control over alginate-based systems, extending the plethora of applications and procedures where they can be used. Additionally, hybrid systems based on alginate combination with other components can also be explored to improve the mimicry of extracellular microenvironments and their dynamics. This review provides an overview on alginate properties and current clinical applications, along with different strategies that have been reported to improve alginate hydrogels performance as 3D matrices and 4D dynamic systems.
Collapse
Affiliation(s)
- Mariana Isabel Neves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.,FEUP - Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Lorenzo Moroni
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands.,CNR NANOTEC - Institute of Nanotechnology, Università del Salento, Lecce, Italy
| | - Cristina Carvalho Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| |
Collapse
|
54
|
Mechanical Adaptations of Epithelial Cells on Various Protruded Convex Geometries. Cells 2020; 9:cells9061434. [PMID: 32527037 PMCID: PMC7349491 DOI: 10.3390/cells9061434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/29/2020] [Accepted: 06/05/2020] [Indexed: 12/16/2022] Open
Abstract
The shape of epithelial tissue supports physiological functions of organs such as intestinal villi and corneal epithelium. Despite the mounting evidence showing the importance of geometry in tissue microenvironments, the current understanding on how it affects biophysical behaviors of cells is still elusive. Here, we cultured cells on various protruded convex structure such as triangle, square, and circle shape fabricated using two-photon laser lithography and quantitatively analyzed individual cells. Morphological data indicates that epithelial cells can sense the sharpness of the corner by showing the characteristic cell alignments, which was caused by actin contractility. Cell area was mainly influenced by surface convexity, and Rho-activation increased cell area on circle shape. Moreover, we found that intermediate filaments, vimentin, and cytokeratin 8/18, play important roles in growth and adaptation of epithelial cells by enhancing expression level on convex structure depending on the shape. In addition, microtubule building blocks, α-tubulin, was also responded on geometric structure, which indicates that intermediate filaments and microtubule can cooperatively secure mechanical stability of epithelial cells on convex surface. Altogether, the current study will expand our understanding of mechanical adaptations of cells on out-of-plane geometry.
Collapse
|
55
|
Bandaru P, Cefaloni G, Vajhadin F, Lee K, Kim HJ, Cho HJ, Hartel MC, Zhang S, Sun W, Goudie MJ, Ahadian S, Dokmeci MR, Lee J, Khademhosseini A. Mechanical Cues Regulating Proangiogenic Potential of Human Mesenchymal Stem Cells through YAP-Mediated Mechanosensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001837. [PMID: 32419312 PMCID: PMC7523466 DOI: 10.1002/smll.202001837] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/13/2020] [Accepted: 04/16/2020] [Indexed: 06/01/2023]
Abstract
Stem cells secrete trophic factors that induce angiogenesis. These soluble factors are promising candidates for stem cell-based therapies, especially for cardiovascular diseases. Mechanical stimuli and biophysical factors presented in the stem cell microenvironment play important roles in guiding their behaviors. However, the complex interplay and precise role of these cues in directing pro-angiogenic signaling remain unclear. Here, a platform is designed using gelatin methacryloyl hydrogels with tunable rigidity and a dynamic mechanical compression bioreactor to evaluate the influence of matrix rigidity and mechanical stimuli on the secretion of pro-angiogenic factors from human mesenchymal stem cells (hMSCs). Cells cultured in matrices mimicking mechanical elasticity of bone tissues in vivo show elevated secretion of vascular endothelial growth factor (VEGF), one of representative signaling proteins promoting angiogenesis, as well as increased vascularization of human umbilical vein endothelial cells (HUVECs) with a supplement of conditioned media from hMSCs cultured across different conditions. When hMSCs are cultured in matrices stimulated with a range of cyclic compressions, increased VEGF secretion is observed with increasing mechanical strains, which is also in line with the enhanced tubulogenesis of HUVECs. Moreover, it is demonstrated that matrix stiffness and cyclic compression modulate secretion of pro-angiogenic molecules from hMSCs through yes-associated protein activity.
Collapse
Affiliation(s)
- Praveen Bandaru
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Giorgia Cefaloni
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Fereshteh Vajhadin
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, Iran
| | - KangJu Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Han-Jun Kim
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Hyun-Jong Cho
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- College of Pharmacy, Kangwon National University, Chuncheon, Gangwon, 24341, Republic of Korea
| | - Martin C Hartel
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Shiming Zhang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Wujin Sun
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Marcus J Goudie
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Samad Ahadian
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Mehmet Remzi Dokmeci
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Junmin Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| |
Collapse
|
56
|
Yang L, Jurczak KM, Ge L, Rijn P. High-Throughput Screening and Hierarchical Topography-Mediated Neural Differentiation of Mesenchymal Stem Cells. Adv Healthc Mater 2020; 9:e2000117. [PMID: 32363812 DOI: 10.1002/adhm.202000117] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/27/2020] [Indexed: 12/12/2022]
Abstract
Biophysical factors such as anisotropic topography composed of micro/nanosized structures are important for directing the fate of human bone marrow-derived mesenchymal stem cells (hBM-MSCs) and have been applied to neuronal differentiation. Via high-throughput screening (HTS) methods based on topography gradients, the optimum topography is determined and translated toward a hierarchical architecture designed to mimic the nerve nano/microstructure. The polydimethylsiloxane (PDMS)-based topography gradient with amplitudes (A) from 541 to 3073 nm and wavelengths (W) between 4 and 30 µm is developed and the fate commitment of MSC toward neuron lineage is investigated. The hierarchical structures, combining nano- and microtopography (W0.3/W26 parallel/perpendicular) are fabricated to explore the combined topography effects on neuron differentiation. From the immunofluorescent staining results (Tuj1 and MAP2), the substrate characterized by W: 26 µm; A: 2.9 µm shows highest potential for promoting neurogenesis. Furthermore, the hierarchical features (W0.3/W26 parallel) significantly enhance neural differentiation. The hBM-MSCs on the hierarchical substrates exhibit a significantly lower percentage of nuclear Yes-associated protein (YAP)/TAZ and weaker cell contractility indicating that the promoted neurogenesis is mediated by the cell tension and YAP/TAZ pathway. This research provides new insight into designing biomaterials for applications in neural tissue engineering and contributes to the understanding of topography-mediated neuronal differentiation.
Collapse
Affiliation(s)
- Liangliang Yang
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
| | - Klaudia Malgorzata Jurczak
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
| | - Lu Ge
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
| | - Patrick Rijn
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
| |
Collapse
|
57
|
Zhao X, Zhu Y, Laslett AL, Chan HF. Hepatic Differentiation of Stem Cells in 2D and 3D Biomaterial Systems. Bioengineering (Basel) 2020; 7:E47. [PMID: 32466173 PMCID: PMC7356247 DOI: 10.3390/bioengineering7020047] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 02/06/2023] Open
Abstract
A critical shortage of donor livers for treating end-stage liver failure signifies the urgent need for alternative treatment options. Hepatocyte-like cells (HLC) derived from various stem cells represent a promising cell source for hepatocyte transplantation, liver tissue engineering, and development of a bioartificial liver assist device. At present, the protocols of hepatic differentiation of stem cells are optimized based on soluble chemical signals introduced in the culture medium and the HLC produced typically retain an immature phenotype. To promote further hepatic differentiation and maturation, biomaterials can be designed to recapitulate cell-extracellular matrix (ECM) interactions in both 2D and 3D configurations. In this review, we will summarize and compare various 2D and 3D biomaterial systems that have been applied to hepatic differentiation, and highlight their roles in presenting biochemical and physical cues to different stem cell sources.
Collapse
Affiliation(s)
- Xiaoyu Zhao
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China; (X.Z.); (Y.Z.)
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Yanlun Zhu
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China; (X.Z.); (Y.Z.)
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Andrew L. Laslett
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia;
- Australian Regenerative Medicine Institute, Monash University, Victoria 3800, Australia
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China; (X.Z.); (Y.Z.)
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
| |
Collapse
|
58
|
Mertgen AS, Trossmann VT, Guex AG, Maniura-Weber K, Scheibel T, Rottmar M. Multifunctional Biomaterials: Combining Material Modification Strategies for Engineering of Cell-Contacting Surfaces. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21342-21367. [PMID: 32286789 DOI: 10.1021/acsami.0c01893] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In the human body, cells in a tissue are exposed to signals derived from their specific extracellular matrix (ECM), such as architectural structure, mechanical properties, and chemical composition (proteins, growth factors). Research on biomaterials in tissue engineering and regenerative medicine aims to recreate such stimuli using engineered materials to induce a specific response of cells at the interface. Although traditional biomaterials design has been mostly limited to varying individual signals, increasing interest has arisen on combining several features in recent years to improve the mimicry of extracellular matrix properties. Tremendous progress in combinatorial surface modification exploiting, for example, topographical features or variations in mechanics combined with biochemical cues has enabled the identification of their key regulatory characteristics on various cell fate decisions. Gradients especially facilitated such research by enabling the investigation of combined continuous changes of different signals. Despite unravelling important synergies for cellular responses, challenges arise in terms of fabrication and characterization of multifunctional engineered materials. This review summarizes recent work on combinatorial surface modifications that aim to control biological responses. Modification and characterization methods for enhanced control over multifunctional material properties are highlighted and discussed. Thereby, this review deepens the understanding and knowledge of biomimetic combinatorial material modification, their challenges but especially their potential.
Collapse
Affiliation(s)
- Anne-Sophie Mertgen
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Vanessa Tanja Trossmann
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof.-Rüdiger-Bormann-Strasse 1, Bayreuth 95440, Germany
| | - Anne Géraldine Guex
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Katharina Maniura-Weber
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Thomas Scheibel
- Lehrstuhl für Biomaterialien, Bayerisches Polymerinstitut (BPI), Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Bayreuth 95440, Germany
| | - Markus Rottmar
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| |
Collapse
|
59
|
Berent ZT, Wagoner Johnson AJ. Cell seeding simulation on micropatterned islands shows cell density depends on area to perimeter ratio, not on island size or shape. Acta Biomater 2020; 107:152-163. [PMID: 32112979 DOI: 10.1016/j.actbio.2020.02.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/21/2020] [Accepted: 02/21/2020] [Indexed: 01/24/2023]
Abstract
Protein micropatterned substrates have been used to control cell size, shape, and cell-cell contacts, characteristics that influence a range of cell behaviors from early cell differentiation to late stages of maturation. Knowing the initial island cell seeding density is important to interpreting results and understanding downstream cell behavior. While studies routinely report the intended or target cell seeding density, they do not report the actual cell seeding density on the islands. As cells proliferate, differences in initial cell seeding density could compound and may lead to misinterpretation of results. In this work, we present a cell seeding simulation and apply it to 100s of islands with a range of geometries (sizes and shapes) to explore how island cell seeding density relates to the target or unpatterned cell seeding density. We first experimentally validate the simulation and then show that normalized island cell seeding density depends on island size, shape, and spacing, but can be predicted solely from island area to perimeter ratio, A2P, via a power law relationship for a wide range of island geometries. Interestingly, normalized island cell seeding density is the same as the normalized unpatterned cell seeding density for A2P ≥ 17 µm. This simulation will help to design micropatterned substrates and to have more accurate representation of the island cell seeding density at the start of experiments. By knowing the island cell seeding density, we can more easily reproduce results across research groups to understand the roles of cell-cell contact and cell size and shape on cell behavior. STATEMENT OF SIGNIFICANCE: We present a cell seeding simulation on protein-micropatterned substrates and use it to simulate seeding across 100s of island geometries (size, shape, and spacing) covering two orders of magnitude in size. The simulation shows that island cell density varies significantly with island geometry compared to the target seeding density. However, island cell density can be predicted from one geometric parameter - the island's area to perimeter ratio. Results will help direct researchers on how to achieve uniform cell density across all island geometries. Since cell density and island shape both influence cell behaviors, such as differentiation, this simulation may help to isolate these factors, facilitate micropatterned substrate design, and provide a mechanism for more reproduceable results across studies.
Collapse
|
60
|
Gong Y, Wang Y, Qu Q, Hou Z, Guo T, Xu Y, Qing R, Deng J, Wang B, Hao S. Nanoparticle encapsulated core-shell hydrogel for on-site BMSCs delivery protects from iron overload and enhances functional recovery. J Control Release 2020; 320:381-391. [DOI: 10.1016/j.jconrel.2020.01.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/06/2020] [Accepted: 01/17/2020] [Indexed: 01/10/2023]
|
61
|
The role of Piezo proteins and cellular mechanosensing in tuning the fate of transplanted stem cells. Cell Tissue Res 2020; 381:1-12. [DOI: 10.1007/s00441-020-03191-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 02/19/2020] [Indexed: 12/18/2022]
|
62
|
Wang T, Nanda SS, Papaefthymiou GC, Yi DK. Mechanophysical Cues in Extracellular Matrix Regulation of Cell Behavior. Chembiochem 2020; 21:1254-1264. [DOI: 10.1002/cbic.201900686] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Tuntun Wang
- Department of ChemistryMyongji University Yongin 449-728 Republic of Korea
| | | | | | - Dong Kee Yi
- Department of ChemistryMyongji University Yongin 449-728 Republic of Korea
| |
Collapse
|
63
|
Comparison of Extracellular Matrix (ECM) of Normal and D-Galactosamine-Induced Mice Model of Liver Injury Before and After Liver Decellularization. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-020-00153-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
64
|
Cembran A, Bruggeman KF, Williams RJ, Parish CL, Nisbet DR. Biomimetic Materials and Their Utility in Modeling the 3-Dimensional Neural Environment. iScience 2020; 23:100788. [PMID: 31954980 PMCID: PMC6970178 DOI: 10.1016/j.isci.2019.100788] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/30/2019] [Accepted: 12/13/2019] [Indexed: 02/06/2023] Open
Abstract
The brain is a complex 3-dimensional structure, the organization of which provides a local environment that directly influences the survival, proliferation, differentiation, migration, and plasticity of neurons. To probe the effects of damage and disease on these cells, a synthetic environment is needed. Three-dimensional culturing of stem cells, neural progenitors, and neurons within fabricated biomaterials has demonstrated superior biomimetic properties over conventional 2-dimensional cultureware, offering direct recapitulation of both cell-cell and cell-extracellular matrix interactions. Within this review we address the benefits of deploying biomaterials as advanced cell culture tools capable of influencing neuronal fate and as in vitro models of the native in vivo microenvironment. We highlight recent and promising biomaterials approaches toward understanding neural network and their function relevant to neurodevelopment and provide our perspective on how these materials can be engineered and programmed to study both the healthy and diseased nervous system.
Collapse
Affiliation(s)
- Arianna Cembran
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, The Australian National University, Canberra, ACT 2600, Australia
| | - Kiara F Bruggeman
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, The Australian National University, Canberra, ACT 2600, Australia
| | | | - Clare L Parish
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Melbourne, VIC 3010, Australia.
| | - David R Nisbet
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, The Australian National University, Canberra, ACT 2600, Australia.
| |
Collapse
|
65
|
In Vitro Evaluation of the Influence of Substrate Mechanics on Matrix-Assisted Human Chondrocyte Transplantation. J Funct Biomater 2020; 11:jfb11010005. [PMID: 31963629 PMCID: PMC7151603 DOI: 10.3390/jfb11010005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/09/2020] [Accepted: 01/15/2020] [Indexed: 11/25/2022] Open
Abstract
Matrix-assisted chondrocyte transplantation (MACT) is of great interest for the treatment of patients with cartilage lesions. However, the roles of the matrix properties in modulating cartilage tissue integration during MACT recovery have not been fully understood. The objective of this study was to uncover the effects of substrate mechanics on the integration of implanted chondrocyte-laden hydrogels with native cartilage tissues. To this end, agarose hydrogels with Young’s moduli ranging from 0.49 kPa (0.5%, w/v) to 23.08 kPa (10%) were prepared and incorporated into an in vitro human cartilage explant model. The hydrogel-cartilage composites were cultivated for up to 12 weeks and harvested for evaluation via scanning electron microscopy, histology, and a push-through test. Our results demonstrated that integration strength at the hydrogel-cartilage interface in the 1.0% (0.93 kPa) and 2.5% (3.30 kPa) agarose groups significantly increased over time, whereas hydrogels with higher stiffness (>8.78 kPa) led to poor integration with articular cartilage. Extensive sprouting of extracellular matrix in the interfacial regions was only observed in the 0.5% to 2.5% agarose groups. Collectively, our findings suggest that while neocartilage development and its integration with native cartilage are modulated by substrate elasticity, an optimal Young’s modulus (3.30 kPa) possessed by agarose hydrogels is identified such that superior quality of tissue integration is achieved without compromising tissue properties of implanted constructs.
Collapse
|
66
|
Hagiwara M, Koh I. Engineering approaches to control and design the in vitro environment towards the reconstruction of organs. Dev Growth Differ 2020; 62:158-166. [PMID: 31925787 DOI: 10.1111/dgd.12647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 12/10/2019] [Indexed: 02/02/2023]
Abstract
In vitro experimental models pertaining to human cells are considered essential for most biological experiments, such as drug development and analysis of disease mechanisms, because of their genetic consistency and ease for detailed and long-term analysis. Recent development of organoid cultures, such as intestine, liver, and kidney cultures, greatly promotes the potential of in vitro experiments. However, conventional culture methods that use manual pipetting have limitations in regenerating complex biosystems. Our body autonomously organizes cells to form a specific tissue shape, and the self-organization process occurs in an extremely systematic manner. In order to emulate this sophisticated process in vitro; first, methodologies for cell culture and organization of in vitro systems need to be updated; second, understanding the self-organizing system is a crucial issue. In this review, recent advancements in engineering technologies to control the microenvironment during cell culture are introduced. Both static and dynamic control have been developed for decades in engineering fields, and the means by which such technologies can help to elucidate and design a biosystem is discussed.
Collapse
Affiliation(s)
- Masaya Hagiwara
- Cluster for Pioneering Research, RIKEN, Saitama, Japan.,Graduate School of Science, Osaka Prefecture University, Sakai, Japan
| | - Isabel Koh
- Cluster for Pioneering Research, RIKEN, Saitama, Japan
| |
Collapse
|
67
|
Wei D, Liu A, Sun J, Chen S, Wu C, Zhu H, Chen Y, Luo H, Fan H. Mechanics-Controlled Dynamic Cell Niches Guided Osteogenic Differentiation of Stem Cells via Preserved Cellular Mechanical Memory. ACS APPLIED MATERIALS & INTERFACES 2020; 12:260-274. [PMID: 31800206 DOI: 10.1021/acsami.9b18425] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Stem cells sense and respond to their local dynamic mechanical niches, which further regulate the cellular behaviors. While in naturally, instead of instantly responding to real-time mechanical changes of their surrounding niches, stem cells often present a delayed cellular response over a time scale, namely cellular mechanical memory, which may finally influence their lineage choice. Here, we aim to build a dynamic mechanical niche model with alginate-based hydrogel, therein the dynamic mechanical switching can be easily realized via the introduce or removal of Ca2+. The results show that stiffening hydrogel (from soft to stiff) suppresses osteogenic differentiation of human mesenchymal stem cells (hMSCs) early on, though it finally promoted osteogenic differentiation over a long time period. Instead, softening hydrogel (from stiff to soft) still retains the strong osteogenic differentiation in the early days, though it finally showed a lower level of osteogenic differentiation compared with stiff hydrogel. Further, microRNA miR-21 has been found as a long-term mechanical memory sensor of the osteogenic program in hMSCs, as its level remains to match early mechanics of substrate over a period of time. Regulation of miR-21 level is efficient to erase the past mechanical memory and resensitize hMSCs to subsequent substrate mechanics. Our findings highlight cellular mechanical memory effect as a key factor of cell and cellular microenvironment interactions, which has been largely neglected before, and as a crucial design element of biomaterials for cell culture.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yongjun Chen
- Chengdu Konjin Biotech Co., Ltd. , Chengdu 611100 , Sichuan , P. R. China
| | | | | |
Collapse
|
68
|
Srivastava P, Kilian KA. Micro-Engineered Models of Development Using Induced Pluripotent Stem Cells. Front Bioeng Biotechnol 2019; 7:357. [PMID: 31850326 PMCID: PMC6895561 DOI: 10.3389/fbioe.2019.00357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/08/2019] [Indexed: 12/31/2022] Open
Abstract
During fetal development, embryonic cells are coaxed through a series of lineage choices which lead to the formation of the three germ layers and subsequently to all the cell types that are required to form an adult human body. Landmark cell fate decisions leading to symmetry breaking, establishment of the primitive streak and first tri-lineage differentiation happen after implantation, and therefore have been attributed to be a function of the embryo's spatiotemporal 3D environment. These mechanical and geometric cues induce a cascade of signaling pathways leading to cell differentiation and orientation. Due to the physiological, ethical, and legal limitations of accessing an intact human embryo for functional studies, multiple in-vitro models have been developed to try and recapitulate the key milestones of mammalian embryogenesis using mouse embryos, or mouse and human embryonic stem cells. More recently, the development of induced pluripotent stem cells represents a cell source which is being explored to prepare a developmental model, owing to their genetic and functional similarities to embryonic stem cells. Here we review the use of micro-engineered cell culture materials as platforms to define the physical and geometric contributions during the cell fate defining process and to study the underlying pathways. This information has applications in various biomedical contexts including tissue engineering, stem cell therapy, and organoid cultures for disease modeling.
Collapse
Affiliation(s)
- Pallavi Srivastava
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
- Australian Centre for Nanomedicine, School of Chemistry, School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, Australia
| | - Kristopher A. Kilian
- Australian Centre for Nanomedicine, School of Chemistry, School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, Australia
| |
Collapse
|
69
|
Lee J, Manoharan V, Cheung L, Lee S, Cha BH, Newman P, Farzad R, Mehrotra S, Zhang K, Khan F, Ghaderi M, Lin YD, Aftab S, Mostafalu P, Miscuglio M, Li J, Mandal BB, Hussain MA, Wan KT, Tang XS, Khademhosseini A, Shin SR. Nanoparticle-Based Hybrid Scaffolds for Deciphering the Role of Multimodal Cues in Cardiac Tissue Engineering. ACS NANO 2019; 13:12525-12539. [PMID: 31621284 PMCID: PMC7068777 DOI: 10.1021/acsnano.9b03050] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Myocardial microenvironment plays a decisive role in guiding the function and fate of cardiomyocytes, and engineering this extracellular niche holds great promise for cardiac tissue regeneration. Platforms utilizing hybrid hydrogels containing various types of conductive nanoparticles have been a critical tool for constructing engineered cardiac tissues with outstanding mechanical integrity and improved electrophysiological properties. However, there has been no attempt to directly compare the efficacy of these hybrid hydrogels and decipher the mechanisms behind how these platforms differentially regulate cardiomyocyte behavior. Here, we employed gelatin methacryloyl (GelMA) hydrogels containing three different types of carbon-based nanoparticles: carbon nanotubes (CNTs), graphene oxide (GO), and reduced GO (rGO), to investigate the influence of these hybrid scaffolds on the structural organization and functionality of cardiomyocytes. Using immunofluorescent staining for assessing cellular organization and proliferation, we showed that electrically conductive scaffolds (CNT- and rGO-GelMA compared to relatively nonconductive GO-GelMA) played a significant role in promoting desirable morphology of cardiomyocytes and elevated the expression of functional cardiac markers, while maintaining their viability. Electrophysiological analysis revealed that these engineered cardiac tissues showed distinct cardiomyocyte phenotypes and different levels of maturity based on the substrate (CNT-GelMA: ventricular-like, GO-GelMA: atrial-like, and rGO-GelMA: ventricular/atrial mixed phenotypes). Through analysis of gene-expression patterns, we uncovered that the engineered cardiac tissues matured on CNT-GelMA and native cardiac tissues showed comparable expression levels of maturation markers. Furthermore, we demonstrated that engineered cardiac tissues matured on CNT-GelMA have increased functionality through integrin-mediated mechanotransduction (via YAP/TAZ) in contrast to cardiomyocytes cultured on rGO-GelMA.
Collapse
Affiliation(s)
- Junmin Lee
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California–Los Angeles, Los Angeles, California 90095, United States
- Center for Minimally Invasive Therapeutics (C-MIT), University of California–Los Angeles, Los Angeles, California 90095, United States
| | - Vijayan Manoharan
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Louis Cheung
- Department of Chemistry & Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Seungkyu Lee
- F. M. Kirby Neurobiology Center, Children’s Hospital Boston, and Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Byung-Hyun Cha
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Division of Cardio-Thoracic Surgery, Department of Surgery, University of Arizona College of Medicine, Room 4302D, 1501 N. Campbell Avenue, Tucson, Arizona 85724, United States
| | - Peter Newman
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Razieh Farzad
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Shreya Mehrotra
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Kaizhen Zhang
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Fazal Khan
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Masoumeh Ghaderi
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yi-Dong Lin
- Divisions of Genetics and Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Saira Aftab
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Pooria Mostafalu
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Mario Miscuglio
- Department of Electrical and Computer Engineering, George Washington University, Washington, D.C. 20052, United States
| | - Joan Li
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Biman B. Mandal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Mohammad Asif Hussain
- Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah 21569, Saudi Arabia
| | - Kai-tak Wan
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Xiaowu Shirley Tang
- Department of Chemistry & Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Ali Khademhosseini
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California–Los Angeles, Los Angeles, California 90095, United States
- Center for Minimally Invasive Therapeutics (C-MIT), University of California–Los Angeles, Los Angeles, California 90095, United States
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California–Los Angeles, Los Angeles, California 90095, United States
- Department of Radiology, David Geffen School of Medicine, University of California–Los Angeles, Los Angeles, California 90095, United States
| | - Su Ryon Shin
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
70
|
Engel L, Gaietta G, Dow LP, Swift MF, Pardon G, Volkmann N, Weis WI, Hanein D, Pruitt BL. Extracellular matrix micropatterning technology for whole cell cryogenic electron microscopy studies. JOURNAL OF MICROMECHANICS AND MICROENGINEERING : STRUCTURES, DEVICES, AND SYSTEMS 2019; 29:115018. [PMID: 32879557 PMCID: PMC7457726 DOI: 10.1088/1361-6439/ab419a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Cryogenic electron tomography is the highest resolution tool available for structural analysis of macromolecular organization inside cells. Micropatterning of extracellular matrix (ECM) proteins is an established in vitro cell culture technique used to control cell shape. Recent traction force microscopy studies have shown correlation between cell morphology and the regulation of force transmission. However, it remains unknown how cells sustain increased strain energy states and localized stresses at the supramolecular level. Here, we report a technology to enable direct observation of mesoscale organization in epithelial cells under morphological modulation, using a maskless protein photopatterning method (PRIMO) to confine cells to ECM micropatterns on electron microscopy substrates. These micropatterned cell culture substrates can be used in mechanobiology research to correlate changes in nanometer-scale organization at cell-cell and cell-ECM contacts to strain energy states and traction stress distribution in the cell.
Collapse
Affiliation(s)
- Leeya Engel
- Department of Bioengineering, Stanford University, Stanford, California
- Correspondence:
| | - Guido Gaietta
- Immunity and Pathogenesis Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Liam P. Dow
- Department of Bioengineering, Stanford University, Stanford, California
- Biomolecular Science and Engineering Program, University of California, Santa Barbara
| | - Mark F. Swift
- Immunity and Pathogenesis Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Gaspard Pardon
- Department of Bioengineering, Stanford University, Stanford, California
| | - Niels Volkmann
- Immunity and Pathogenesis Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - William I. Weis
- Departments of Structural Biology and Molecular and Cellular Physiology, Stanford University School of Medicine
| | - Dorit Hanein
- Immunity and Pathogenesis Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Beth L. Pruitt
- Department of Bioengineering, Stanford University, Stanford, California
- Biomolecular Science and Engineering Program, University of California, Santa Barbara
- Departments of Mechanical Engineering and Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara
| |
Collapse
|
71
|
Argentati C, Morena F, Tortorella I, Bazzucchi M, Porcellati S, Emiliani C, Martino S. Insight into Mechanobiology: How Stem Cells Feel Mechanical Forces and Orchestrate Biological Functions. Int J Mol Sci 2019; 20:E5337. [PMID: 31717803 PMCID: PMC6862138 DOI: 10.3390/ijms20215337] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/12/2022] Open
Abstract
The cross-talk between stem cells and their microenvironment has been shown to have a direct impact on stem cells' decisions about proliferation, growth, migration, and differentiation. It is well known that stem cells, tissues, organs, and whole organisms change their internal architecture and composition in response to external physical stimuli, thanks to cells' ability to sense mechanical signals and elicit selected biological functions. Likewise, stem cells play an active role in governing the composition and the architecture of their microenvironment. Is now being documented that, thanks to this dynamic relationship, stemness identity and stem cell functions are maintained. In this work, we review the current knowledge in mechanobiology on stem cells. We start with the description of theoretical basis of mechanobiology, continue with the effects of mechanical cues on stem cells, development, pathology, and regenerative medicine, and emphasize the contribution in the field of the development of ex-vivo mechanobiology modelling and computational tools, which allow for evaluating the role of forces on stem cell biology.
Collapse
Affiliation(s)
- Chiara Argentati
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy; (C.A.); (F.M.); (I.T.); (M.B.); (S.P.); (C.E.)
| | - Francesco Morena
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy; (C.A.); (F.M.); (I.T.); (M.B.); (S.P.); (C.E.)
| | - Ilaria Tortorella
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy; (C.A.); (F.M.); (I.T.); (M.B.); (S.P.); (C.E.)
| | - Martina Bazzucchi
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy; (C.A.); (F.M.); (I.T.); (M.B.); (S.P.); (C.E.)
| | - Serena Porcellati
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy; (C.A.); (F.M.); (I.T.); (M.B.); (S.P.); (C.E.)
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy; (C.A.); (F.M.); (I.T.); (M.B.); (S.P.); (C.E.)
- CEMIN, Center of Excellence on Nanostructured Innovative Materials, Via del Giochetto, 06126 Perugia, Italy
| | - Sabata Martino
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy; (C.A.); (F.M.); (I.T.); (M.B.); (S.P.); (C.E.)
- CEMIN, Center of Excellence on Nanostructured Innovative Materials, Via del Giochetto, 06126 Perugia, Italy
| |
Collapse
|
72
|
Thakar H, Sebastian SM, Mandal S, Pople A, Agarwal G, Srivastava A. Biomolecule-Conjugated Macroporous Hydrogels for Biomedical Applications. ACS Biomater Sci Eng 2019; 5:6320-6341. [DOI: 10.1021/acsbiomaterials.9b00778] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
73
|
Li X, Wang X, Chen H, Jin Z, Dai X, Zhang X, Zhang L, Xu T. A comparative study of the behavior of neural progenitor cells in extrusion-based in vitro hydrogel models. ACTA ACUST UNITED AC 2019; 14:065001. [PMID: 31498778 DOI: 10.1088/1748-605x/ab3b4b] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
With the aid of extrusion-based biofabrication strategies, neural stem/progenitor cell-laden hydrogel structures can be fabricated for use in neural research. Extrusion-based strategies can be altered in order to fulfill various requirements. In this study, mouse neural progenitor cell (NE-4C) behaviors in multiple extrusion-based fabricated microenvironments were investigated. Extrusion-based bioprinted cell-laden structures and coaxially extruded core-shell cell fibers were successfully fabricated. Cell distribution and morphology were observed in different structures with scanning electron microscopy (SEM). Genes and proteins related to cell differentiation were examined using quantitative polymerase chain reaction (qPCR) and western blot (WB). The results show that compared with NE-4Cs cultured in petri dishes, the abundance of nestin was 6.28 ± 1.38 times higher in bioprinted structures and the abundances of Tuj-1 and GFAP were 3.14 ± 1.38 and 2.11 ± 0.21 times higher in cell fibers, respectively, indicating that NE-4Cs showed stronger differentiation tendency in cell fibers and weaker tendency in printed structures. This study may provide guidance in selecting fabrication strategies for use in neural research.
Collapse
Affiliation(s)
- Xinda Li
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
74
|
Zhu YJ, Lu BQ. Deformable Biomaterials Based on Ultralong Hydroxyapatite Nanowires. ACS Biomater Sci Eng 2019; 5:4951-4961. [DOI: 10.1021/acsbiomaterials.9b01183] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bing-Qiang Lu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| |
Collapse
|
75
|
Portone A, Sciancalepore AG, Melle G, Netti GS, Greco G, Persano L, Gesualdo L, Pisignano D. Quasi-3D morphology and modulation of focal adhesions of human adult stem cells through combinatorial concave elastomeric surfaces with varied stiffness. SOFT MATTER 2019; 15:5154-5162. [PMID: 31192342 DOI: 10.1039/c9sm00481e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In vivo cell niches are complex architectures that provide a wide range of biochemical and mechanical stimuli to control cell behavior and fate. With the aim to provide in vitro microenvironments mimicking physiological niches, microstructured substrates have been exploited to support cell adhesion and to control cell shape as well as three dimensional morphology. At variance with previous methods, we propose a simple and rapid protein subtractive soft lithographic method to obtain microstructured polydimethylsiloxane substrates for studying stem cell adhesion and growth. The shape of adult renal stem cells and nuclei is found to depend predominantly on micropatterning of elastomeric surfaces and only weakly on the substrate mechanical properties. Differently, focal adhesions in their shape and density but not in their alignment mainly depend on the elastomer stiffness almost regardless of microscale topography. Local surface topography with concave microgeometry enhancing adhesion drives stem cells in a quasi-three dimensional configuration where stiffness might significantly steer mechanosensing as highlighted by focal adhesion properties.
Collapse
Affiliation(s)
- A Portone
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, I-56127 Pisa, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
76
|
Abstract
Cellular behavior is continuously affected by microenvironmental forces through the process of mechanotransduction, in which mechanical stimuli are rapidly converted to biochemical responses. Mounting evidence suggests that the nucleus itself is a mechanoresponsive element, reacting to cytoskeletal forces and mediating downstream biochemical responses. The nucleus responds through a host of mechanisms, including partial unfolding, conformational changes, and phosphorylation of nuclear envelope proteins; modulation of nuclear import/export; and altered chromatin organization, resulting in transcriptional changes. It is unclear which of these events present direct mechanotransduction processes and which are downstream of other mechanotransduction pathways. We critically review and discuss the current evidence for nuclear mechanotransduction, particularly in the context of stem cell fate, a largely unexplored topic, and in disease, where an improved understanding of nuclear mechanotransduction is beginning to open new treatment avenues. Finally, we discuss innovative technological developments that will allow outstanding questions in the rapidly growing field of nuclear mechanotransduction to be answered.
Collapse
Affiliation(s)
- Melanie Maurer
- Meinig School of Biomedical Engineering and Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York 14853, USA; ,
| | - Jan Lammerding
- Meinig School of Biomedical Engineering and Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York 14853, USA; ,
| |
Collapse
|
77
|
Seidlits SK, Liang J, Bierman RD, Sohrabi A, Karam J, Holley SM, Cepeda C, Walthers CM. Peptide-modified, hyaluronic acid-based hydrogels as a 3D culture platform for neural stem/progenitor cell engineering. J Biomed Mater Res A 2019; 107:704-718. [PMID: 30615255 PMCID: PMC8862560 DOI: 10.1002/jbm.a.36603] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/23/2018] [Accepted: 01/03/2019] [Indexed: 07/26/2023]
Abstract
Neural stem/progenitor cell (NS/PC)-based therapies have shown exciting potential for regeneration of the central nervous system (CNS) and NS/PC cultures represent an important resource for disease modeling and drug screening. However, significant challenges limiting clinical translation remain, such as generating large numbers of cells required for model cultures or transplantation, maintaining physiologically representative phenotypes ex vivo and directing NS/PC differentiation into specific fates. Here, we report that culture of human NS/PCs in 3D, hyaluronic acid (HA)-rich biomaterial microenvironments increased differentiation toward oligodendrocytes and neurons over 2D cultures on laminin-coated glass. Moreover, NS/PCs in 3D culture exhibited a significant reduction in differentiation into reactive astrocytes. Many NS/PC-derived neurons in 3D, HA-based hydrogels expressed synaptophysin, indicating synapse formation, and displayed electrophysiological characteristics of immature neurons. While inclusion of integrin-binding, RGD peptides into hydrogels resulted in a modest increase in numbers of viable NS/PCs, no combination of laminin-derived, adhesive peptides affected differentiation outcomes. Notably, 3D cultures of differentiating NS/PCs were maintained for at least 70 days in medium with minimal growth factor supplementation. In sum, results demonstrate the use of 3D, HA-based biomaterials for long-term expansion and differentiation of NS/PCs toward oligodendroglial and neuronal fates, while inhibiting astroglial fates. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 704-718, 2019.
Collapse
Affiliation(s)
- Stephanie K. Seidlits
- Department of Bioengineering, UCLA, Los Angels, California
- Board Stem Cell Research Center, UCLA, Los Angels, California
- Brain Research Institute, UCLA, Los Angels, California
- Jonsson Comprehensive Cancer Center, UCLA, Los Angels, California
- Center for Minimally Invasive Therapeutics, UCLA, Los Angels, California
| | - Jesse Liang
- Department of Bioengineering, UCLA, Los Angels, California
| | | | | | - Joshua Karam
- Department of Bioengineering, UCLA, Los Angels, California
| | - Sandra M. Holley
- Intellectual and Developmental Disabilities Research Center, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Carlos Cepeda
- Intellectual and Developmental Disabilities Research Center, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, UCLA, Los Angeles, California
| | | |
Collapse
|
78
|
Bandaru P, Chu D, Sun W, Lasli S, Zhao C, Hou S, Zhang S, Ni J, Cefaloni G, Ahadian S, Dokmeci MR, Sengupta S, Lee J, Khademhosseini A. A Microfabricated Sandwiching Assay for Nanoliter and High-Throughput Biomarker Screening. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900300. [PMID: 30884183 DOI: 10.1002/smll.201900300] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/14/2019] [Indexed: 05/03/2023]
Abstract
Cells secrete substances that are essential to the understanding of numerous immunological phenomena and are extensively used in clinical diagnoses. Countless techniques for screening of biomarker secretion in living cells have generated valuable information on cell function and physiology, but low volume and real-time analysis is a bottleneck for a range of approaches. Here, a simple, highly sensitive assay using a high-throughput micropillar and microwell array chip (MIMIC) platform is presented for monitoring of biomarkers secreted by cancer cells. The sensing element is a micropillar array that uses the enzyme-linked immunosorbent assay (ELISA) mechanism to detect captured biomolecules. When integrated with a microwell array where few cells are localized, interleukin 8 (IL-8) secretion can be monitored with nanoliter volume using multiple micropillar arrays. The trend of cell secretions measured using MIMICs matches the results from conventional ELISA well while it requires orders of magnitude less cells and volumes. Moreover, the proposed MIMIC is examined to be used as a drug screening platform by delivering drugs using micropillar arrays in combination with a microfluidic system and then detecting biomolecules from cells as exposed to drugs.
Collapse
Affiliation(s)
- Praveen Bandaru
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Dafeng Chu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Wujin Sun
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Soufian Lasli
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Chuanzhen Zhao
- Department of Chemistry and Biochemistry, University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Shuang Hou
- Department of Molecular and Medical Pharmacology, University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Shiming Zhang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Jiahua Ni
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Giorgia Cefaloni
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Samad Ahadian
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Mehmet Remzi Dokmeci
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Shiladitya Sengupta
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Junmin Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
| |
Collapse
|
79
|
Sridharan Weaver S, Li Y, Foucard L, Majeed H, Bhaduri B, Levine AJ, Kilian KA, Popescu G. Simultaneous cell traction and growth measurements using light. JOURNAL OF BIOPHOTONICS 2019; 12:e201800182. [PMID: 30105846 PMCID: PMC7236521 DOI: 10.1002/jbio.201800182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/27/2018] [Indexed: 05/12/2023]
Abstract
Characterizing the effects of force fields generated by cells on proliferation, migration and differentiation processes is challenging due to limited availability of nondestructive imaging modalities. Here, we integrate a new real-time traction stress imaging modality, Hilbert phase dynamometry (HPD), with spatial light interference microscopy (SLIM) for simultaneous monitoring of cell growth during differentiation processes. HPD uses holographic principles to extract displacement fields from chemically patterned fluorescent grid on deformable substrates. This is converted into forces by solving an elasticity inverse problem. Since HPD uses the epi-fluorescence channel of an inverted microscope, cellular behavior can be concurrently studied in transmission with SLIM. We studied the differentiation of mesenchymal stem cells (MSCs) and found that cells undergoing osteogenesis and adipogenesis exerted larger and more dynamic stresses than their precursors, with MSCs developing the smallest forces and growth rates. Thus, we develop a powerful means to study mechanotransduction during dynamic processes where the matrix provides context to guide cells toward a physiological or pathological outcome.
Collapse
Affiliation(s)
- Shamira Sridharan Weaver
- Quantitative Light Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Yanfen Li
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Material Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Louis Foucard
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California
| | - Hassaan Majeed
- Quantitative Light Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Basanta Bhaduri
- Quantitative Light Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Alex J Levine
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California
- Department of Physics & Astronomy, University of California, Los Angeles, California
- Department of Biomathematics, University of California, Los Angeles, California
| | - Kristopher A Kilian
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Material Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Gabriel Popescu
- Quantitative Light Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
| |
Collapse
|
80
|
Dilla RA, Xu Y, Zander ZK, Bernard N, Wiener CG, Vogt BD, Becker ML. Mechanically tunable, human mesenchymal stem cell viable poly(ethylene glycol)-oxime hydrogels with invariant precursor composition, concentration, and stoichiometry. MATERIALS TODAY. CHEMISTRY 2019; 11:244-252. [PMID: 31667447 PMCID: PMC6820350 DOI: 10.1016/j.mtchem.2018.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Hydrogels are used widely for exploratory tissue engineering studies. However, currently no hydrogel systems have been reported that exhibit a wide range of elastic modulus without changing precursor concentration, identity, or stoichiometry. Herein, ester and amide-based PEG-oxime hydrogels with tunable moduli (~5-30 kPa) were synthesized with identical precursor mass fraction, stoichiometry, and concentration by varying the pH and buffer concentration of the gelation solution, exploiting the kinetics of oxime bond formation. The observed modulus range can be attributed to increasing amounts of network defects in slower forming gels, as confirmed by equilibrium swelling and small angle neutron scattering (SANS) experiments. Finally, hMSC viability was confirmed in these materials in a 24 h assay. While only an initial demonstration of the potential utility, the controlled variation in defect density and modulus is an important step forward in isolating system variables for hypothesis-driven biological investigations.
Collapse
Affiliation(s)
- Rodger A Dilla
- The University of Akron, Department of Polymer Science, 44325, USA
| | - Yanyi Xu
- The University of Akron, Department of Polymer Science, 44325, USA
| | - Zachary K Zander
- The University of Akron, Department of Polymer Science, 44325, USA
| | - Neil Bernard
- The University of Akron, Department of Polymer Science, 44325, USA
| | - Clinton G Wiener
- The University of Akron, Department of Polymer Engineering, 44325, USA
| | - Bryan D Vogt
- The University of Akron, Department of Polymer Engineering, 44325, USA
| | - Matthew L Becker
- The University of Akron, Department of Polymer Science, 44325, USA
| |
Collapse
|
81
|
Counting growth factors in single cells with infrared quantum dots to measure discrete stimulation distributions. Nat Commun 2019; 10:909. [PMID: 30796217 PMCID: PMC6385258 DOI: 10.1038/s41467-019-08754-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 01/29/2019] [Indexed: 12/20/2022] Open
Abstract
The distribution of single-cell properties across a population of cells can be measured using diverse tools, but no technology directly quantifies the biochemical stimulation events regulating these properties. Here we report digital counting of growth factors in single cells using fluorescent quantum dots and calibrated three-dimensional deconvolution microscopy (QDC-3DM) to reveal physiologically relevant cell stimulation distributions. We calibrate the fluorescence intensities of individual compact quantum dots labeled with epidermal growth factor (EGF) and demonstrate the necessity of near-infrared emission to overcome intrinsic cellular autofluoresence at the single-molecule level. When applied to human triple-negative breast cancer cells, we observe proportionality between stimulation and both receptor internalization and inhibitor response, reflecting stimulation heterogeneity contributions to intrinsic variability. We anticipate that QDC-3DM can be applied to analyze any peptidic ligand to reveal single-cell correlations between external stimulation and phenotypic variability, cell fate, and drug response. Measuring growth factors in single cells at physiologically relevant stimulation doses is challenging. Here the authors use fluorescent quantum dots and calibrated three-dimensional deconvolution microscopy to digitally count growth factors in single cells and reveal stimulation distributions in cancer cells.
Collapse
|
82
|
Huang J, Chen Y, Tang C, Fei Y, Wu H, Ruan D, Paul ME, Chen X, Yin Z, Heng BC, Chen W, Shen W. The relationship between substrate topography and stem cell differentiation in the musculoskeletal system. Cell Mol Life Sci 2019; 76:505-521. [PMID: 30390116 PMCID: PMC11105278 DOI: 10.1007/s00018-018-2945-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/15/2018] [Accepted: 10/12/2018] [Indexed: 12/11/2022]
Abstract
It is well known that biomaterial topography can exert a profound influence on various cellular functions such as migration, polarization, and adhesion. With the development and refinement of manufacturing technology, much research has recently been focused on substrate topography-induced cell differentiation, particularly in the field of tissue engineering. Even without biological and chemical stimuli, the differentiation of stem cells can also be initiated by various biomaterials with different topographic features. However, the underlying mechanisms of this biological phenomenon remain elusive. During the past few decades, many researchers have demonstrated that cells can sense the topography of materials through the assembly and polymerization of membrane proteins. Following the activation of RHO, TGF-b or FAK signaling pathways, cells can be induced into various differentiation states. But these signaling pathways often coincide with canonical mechanical transduction pathways, and no firm conclusion has been reached among researchers in this field on topography-specific signaling pathways. On the other hand, some substrate topographies are reported to have the ability to inhibit differentiation and maintain the 'stemness' of stem cells. In this review, we will summarize the role of topography in musculoskeletal system regeneration and explore possible topography-related signaling pathways involved in cell differentiation.
Collapse
Affiliation(s)
- Jiayun Huang
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, China
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China
- Orthopaedics Research Institute of Zhejiang University, Zhejiang, China
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China
- China Orthopaedic Regenerative Medicine (CORMed), Hangzhou, China
| | - Yangwu Chen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, China
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China
- Orthopaedics Research Institute of Zhejiang University, Zhejiang, China
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China
- China Orthopaedic Regenerative Medicine (CORMed), Hangzhou, China
| | - Chenqi Tang
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, China
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China
- Orthopaedics Research Institute of Zhejiang University, Zhejiang, China
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China
- China Orthopaedic Regenerative Medicine (CORMed), Hangzhou, China
| | - Yang Fei
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, China
- Orthopaedics Research Institute of Zhejiang University, Zhejiang, China
- China Orthopaedic Regenerative Medicine (CORMed), Hangzhou, China
| | - Haoyu Wu
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China
| | - Dengfeng Ruan
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, China
- Orthopaedics Research Institute of Zhejiang University, Zhejiang, China
- China Orthopaedic Regenerative Medicine (CORMed), Hangzhou, China
| | - Maswikiti Ewetse Paul
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China
| | - Xiao Chen
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China
- China Orthopaedic Regenerative Medicine (CORMed), Hangzhou, China
| | - Zi Yin
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China
| | - Boon Chin Heng
- Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Weishan Chen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, China
| | - Weiliang Shen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, China.
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang, 310000, China.
- Orthopaedics Research Institute of Zhejiang University, Zhejiang, China.
- Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang, 310000, China.
- China Orthopaedic Regenerative Medicine (CORMed), Hangzhou, China.
| |
Collapse
|
83
|
Fraioli R, Neubauer S, Rechenmacher F, Bosch BM, Dashnyam K, Kim JH, Perez RA, Kim HW, Gil FJ, Ginebra MP, Manero JM, Kessler H, Mas-Moruno C. Control of stem cell response and bone growth on biomaterials by fully non-peptidic integrin selective ligands. Biomater Sci 2019; 7:1281-1285. [DOI: 10.1039/c8bm01466c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Integrin selective peptidomimetics tune stem cell behavior in vitro and improve bone formation in rat calvarial defects.
Collapse
|
84
|
Wang S, Li J, Zhou Z, Zhou S, Hu Z. Micro-/Nano-Scales Direct Cell Behavior on Biomaterial Surfaces. Molecules 2018; 24:E75. [PMID: 30587800 PMCID: PMC6337445 DOI: 10.3390/molecules24010075] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/10/2018] [Accepted: 12/20/2018] [Indexed: 01/22/2023] Open
Abstract
Cells are the smallest living units of a human body's structure and function, and their behaviors should not be ignored in human physiological and pathological metabolic activities. Each cell has a different scale, and presents distinct responses to specific scales: Vascular endothelial cells may obtain a normal function when regulated by the 25 µm strips, but de-function if the scale is removed; stem cells can rapidly proliferate on the 30 nm scales nanotubes surface, but stop proliferating when the scale is changed to 100 nm. Therefore, micro and nano scales play a crucial role in directing cell behaviors on biomaterials surface. In recent years, a series of biomaterials surface with micro and/or nano scales, such as micro-patterns, nanotubes and nanoparticles, have been developed to control the target cell behavior, and further enhance the surface biocompatibility. This contribution will introduce the related research, and review the advances in the micro/nano scales for biomaterials surface functionalization.
Collapse
Affiliation(s)
- Shuo Wang
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of materials processing and mold technology (Ministry of Education), Zhengzhou University, Zhengzhou 450001, China.
| | - Jingan Li
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of materials processing and mold technology (Ministry of Education), Zhengzhou University, Zhengzhou 450001, China.
| | - Zixiao Zhou
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of materials processing and mold technology (Ministry of Education), Zhengzhou University, Zhengzhou 450001, China.
| | - Sheng Zhou
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of materials processing and mold technology (Ministry of Education), Zhengzhou University, Zhengzhou 450001, China.
| | - Zhenqing Hu
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of materials processing and mold technology (Ministry of Education), Zhengzhou University, Zhengzhou 450001, China.
| |
Collapse
|
85
|
Bi X, Maturavongsadit P, Tan Y, Watts M, Bi E, Kegley Z, Morton S, Lu L, Wang Q, Liang A. Polyamidoamine dendrimer-PEG hydrogel and its mechanical property on differentiation of mesenchymal stem cells. Biomed Mater Eng 2018; 30:111-123. [PMID: 30562893 DOI: 10.3233/bme-181037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Biocompatible hydrogel systems with tunable mechanical properties have been reported to influence the behavior and differentiation of mesenchymal stem cells (MSCs). OBJECTIVE To develop a functionalized hydrogel system with well-defined chemical structures and tunable mechanical property for regulation of stem cell differentiation. METHODS An in situ-forming hydrogel system is developed by crosslinking vinyl sulfone functionalized polyamidoamine (PAMAM) dendrimer and multi-armed thiolated polyethylene glycol (PEG) through a thiol-ene Michael addition in aqueous conditions. The viability and differentiation of MSCs in hydrogels of different stiffness are conducted for 21 days under corresponding induction media. RESULTS MSCs are viable in synthesized hydrogels after 48 hours of culture. By varying the concentrations of PAMAM dendrimer and PEG, hydrogels of different gelation time and stiffness are achieved. The MSC differentiation indicates that more osteogenic differentiation is observed in hard gel (5,663 Pa) and more adipogenic differentiation is observed in soft gel (77 Pa) in addition to the differentiation caused by each individual induction media during the process of culture. CONCLUSIONS A biocompatible in situ-forming hydrogel system is successfully synthesized. This hydrogel system has shown influences on differentiation of MSCs and may potentially be important in developing therapeutic strategies in medical applications.
Collapse
Affiliation(s)
- Xiangdong Bi
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Panita Maturavongsadit
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Yu Tan
- Department of Bioengineering, Clemson University, Clemson, South Carolina, USA
| | - Morgan Watts
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Evelyn Bi
- Academic Magnet High School, Charleston, South Carolina, USA
| | - Zachary Kegley
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Steve Morton
- Research Oceanographer National Ocean Service, Charleston, South Carolina, USA
| | - Lin Lu
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Qian Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Aiye Liang
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| |
Collapse
|
86
|
Tang Z, Jiang F, Zhang Y, Zhang Y, Huang X, Wang Y, Zhang D, Ni N, Liu F, Luo M, Fan X, Zhang W, Gu P. Mussel-inspired injectable hydrogel and its counterpart for actuating proliferation and neuronal differentiation of retinal progenitor cells. Biomaterials 2018; 194:57-72. [PMID: 30583149 DOI: 10.1016/j.biomaterials.2018.12.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 12/11/2018] [Accepted: 12/14/2018] [Indexed: 12/22/2022]
Abstract
Biomaterials-mediated retinal progenitor cell (RPC)-based transplantation therapy has shown substantial potential for retinal degeneration (RD), but it is limited by the poor RPC survival, proliferation and differentiation. Herein, the gelatin-hyaluronic acid (Gel-HA)-based hydrogels formed via moderate Michael-type addition reaction with or without the introduction of mussel-inspired polydopamine (PDA), i.e. Gel-HA-PDA and its counterpart Gel-HA hydrogels are developed, and their effects on the biological behaviour of RPCs, including adhesion, survival, proliferation, differentiation, delivery and migration are investigated. The hybrid hydrogels can adopt the intricate structure of the retina with suitable mechanical strength, degradation rate and biological activity to support cellular adhesion, survival and delivery. Meanwhile, Gel-HA hydrogel can remarkably promote RPC proliferation with much larger cell clusters, while Gel-HA-PDA hydrogel significantly enhances RPC adhesion and migration, and directs RPCs to preferentially differentiate toward retinal neurons such as photoreceptors (the most crucial cell-type for RD treatment), which is mainly induced by the activation of integrin α5β1-phosphatidylinositol-3-kinase (PI3K) pathway. This study demonstrates that Gel-HA hydrogel possesses great potential for RPC proliferation, while mussel-inspired PDA-modified Gel-HA hydrogel with superior biocompatibility can significantly promote RPC neuronal differentiation, providing new insights for developing biomedical materials applied for RPC-based transplantation therapy.
Collapse
Affiliation(s)
- Zhimin Tang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China
| | - Fang Jiang
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yuanhao Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yi Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China
| | - Xiaolin Huang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China
| | - Yuyao Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China
| | - Dandan Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China
| | - Ni Ni
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China
| | - Feng Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Min Luo
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China.
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Ping Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, PR China.
| |
Collapse
|
87
|
Chen L, Huang T, Qiao Y, Jiang F, Lan J, Zhou Y, Yang C, Yan S, Luo K, Su L, Li J. Perspective into
the regulation of cell‐generated forces toward stem cell migration and differentiation. J Cell Biochem 2018; 120:8884-8890. [PMID: 30536423 DOI: 10.1002/jcb.28251] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 10/22/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Liujing Chen
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Tu Huang
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Yini Qiao
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Fulin Jiang
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Jingxiang Lan
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Yimei Zhou
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Cai Yang
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Shanyu Yan
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Kaihui Luo
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Liping Su
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| | - Juan Li
- State Key Laboratory of Oral Diseases Department of Orthodontics, West China Hospital of Stomatology West China School of Stomatology, Sichuan University Chengdu Sichuan China
| |
Collapse
|
88
|
Xu B, Magli A, Anugrah Y, Koester SJ, Perlingeiro RCR, Shen W. Nanotopography-responsive myotube alignment and orientation as a sensitive phenotypic biomarker for Duchenne Muscular Dystrophy. Biomaterials 2018; 183:54-66. [PMID: 30149230 PMCID: PMC6239205 DOI: 10.1016/j.biomaterials.2018.08.047] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/09/2018] [Accepted: 08/20/2018] [Indexed: 01/08/2023]
Abstract
Duchenne Muscular Dystrophy (DMD) is a fatal genetic disorder currently having no cure. Here we report that culture substrates patterned with nanogrooves and functionalized with Matrigel (or laminin) present an engineered cell microenvironment to allow myotubes derived from non-diseased, less-affected DMD, and severely-affected DMD human induced pluripotent stem cells (hiPSCs) to exhibit prominent differences in alignment and orientation, providing a sensitive phenotypic biomarker to potentially facilitate DMD drug development and early diagnosis. We discovered that myotubes differentiated from myogenic progenitors derived from non-diseased hiPSCs align nearly perpendicular to nanogrooves, a phenomenon not reported previously. We further found that myotubes derived from hiPSCs of a dystrophin-null DMD patient orient randomly, and those from hiPSCs of a patient carrying partially functional dystrophin align approximately 14° off the alignment direction of non-diseased myotubes. Substrates engineered with micron-scale grooves and/or cell adhesion molecules only interacting with integrins all guide parallel myotube alignment to grooves and lose the ability to distinguish different cell types. Disruption of the interaction between the Dystrophin-Associated-Protein-Complex (DAPC) and laminin by heparin or anti-α-dystroglycan antibody IIH6 disenables myotubes to align perpendicular to nanogrooves, suggesting that this phenotype is controlled by the DAPC-mediated cytoskeleton-extracellular matrix linkage.
Collapse
Affiliation(s)
- Bin Xu
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Alessandro Magli
- Department of Medicine, University of Minnesota, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA
| | - Yoska Anugrah
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Steven J Koester
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, USA; Institute for Engineering in Medicine, University of Minnesota, Minneapolis, MN 55455, USA
| | - Rita C R Perlingeiro
- Department of Medicine, University of Minnesota, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Institute for Engineering in Medicine, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Wei Shen
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Institute for Engineering in Medicine, University of Minnesota, Minneapolis, MN 55455, USA.
| |
Collapse
|
89
|
Shah SS, Liang H, Pandit S, Parikh Z, Schwartz JA, Goldstein T, Lavelle LP, Datta A, Grande DA. Optimization of Degradation Profile for New Scaffold in Cartilage Repair. Cartilage 2018; 9:438-449. [PMID: 28399641 PMCID: PMC6139589 DOI: 10.1177/1947603517700954] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Objective To establish whether a novel biomaterial scaffold with tunable degradation profile will aid in cartilage repair of chondral defects versus microfracture alone in vitro and in a rat model in vivo. Design In vitro-Short- and long-term degradation scaffolds were seeded with culture expanded articular chondrocytes or bone marrow mesenchymal stem cells. Cell growth and differentiation were evaluated with cell morphological studies and gene expression studies. In vivo-A microfracture rat model was used in this study to evaluate the repair of cartilage and subchondral bone with the contralateral knee serving as the empty control. The treatment groups include (1) empty osteochondral defect, (2) polycaprolactone copolymer-based polyester polyurethane-urea (PSPU-U) caffold short-term degradative profile, and (3) PSPU-U scaffold long-term degradative profile. After placement of the scaffold, the rats were then allowed unrestricted activity as tolerated, and histological analyses were performed at 4, 8, and 16 weeks. The cartilage defect was measured and compared with the contralateral control side. Results In vitro-Long-term scaffolds showed statistically significant higher levels of aggrecan and type II collagen expression compared with short-term scaffolds. In vivo-Within 16 weeks postimplantation, there was new subchondral bone formation in both scaffolds. Short-term scaffolds had a statistically significant increase in defect filling and better qualitative histologic fill compared to control. Conclusions The PSPU short-term degradation scaffold may aid in cartilage repair by ultimately incorporating the scaffold into the microfracture procedure.
Collapse
Affiliation(s)
- Sarav S. Shah
- Department of Orthopaedic Surgery, Hofstra-Northwell School of Medicine, New Hyde Park, NY, USA
| | - Haixiang Liang
- Orthopaedic Research Laboratory, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Sandeep Pandit
- Department of Orthopaedic Surgery, Hofstra-Northwell School of Medicine, New Hyde Park, NY, USA
| | - Zalak Parikh
- Orthopaedic Research Laboratory, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - John A. Schwartz
- Orthopaedic Research Laboratory, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Todd Goldstein
- Orthopaedic Research Laboratory, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | | | | | - Daniel A. Grande
- Department of Orthopaedic Surgery, Hofstra-Northwell School of Medicine, New Hyde Park, NY, USA,Orthopaedic Research Laboratory, Feinstein Institute for Medical Research, Manhasset, NY, USA,Daniel A. Grande, The Feinstein Institute for Medical Research, Northwell Health System, 350 Community Drive, Manhasset, NY 11030, USA.
| |
Collapse
|
90
|
Sen KS, Duarte Campos DF, Köpf M, Blaeser A, Fischer H. The Effect of Addition of Calcium Phosphate Particles to Hydrogel-Based Composite Materials on Stiffness and Differentiation of Mesenchymal Stromal Cells toward Osteogenesis. Adv Healthc Mater 2018; 7:e1800343. [PMID: 29943520 DOI: 10.1002/adhm.201800343] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/28/2018] [Indexed: 11/06/2022]
Abstract
The stiffness of a hydrogel has a significant role on the mechanical stability of a scaffold. However, the stiffness of pure hydrogels can be tuned only within a limited range. Herein, it is hypothesized that the range of hydrogel stiffness can be greatly increased by the addition of calcium phosphate particles and that such composites promote the osteogenic differentiation of human mesenchymal stem cells (hMSCs). Beta-tricalcium phosphate (β-TCP) particles are incorporated at concentrations of 0.5 and 5 mg mL-1 into various agarose and agarose-collagen blends. These composites are characterized with respect to stiffness, viscosity, degradation, cell morphology, viability, and osteogenesis. The osteogenic hMSCs in less stiff composites with 0.5 mg mL-1 β-TCP show the highest alkaline phosphatase expression compared to blends without β-TCP and stiffer composites with 5 mg mL-1 β-TCP. Quantitative polymerase chain reaction also shows higher expression of ALP, RUNX2, and collagen I by hMSCs in less stiff composites with 0.5 mg mL-1 β-TCP compared to blends without β-TCP and stiffer composite blends. It is concluded that by addition of calcium phosphate to specific hydrogels the stiffness can be tuned in a desired range and thus the osteogenic differentiation of embedded hMSCs can be better controlled and adjusted compared to pure hydrogels.
Collapse
Affiliation(s)
- Kshama S. Sen
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| | - Daniela F. Duarte Campos
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| | - Marius Köpf
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| | - Andreas Blaeser
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| | - Horst Fischer
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| |
Collapse
|
91
|
Parisi L, Toffoli A, Ghiacci G, Macaluso GM. Tailoring the Interface of Biomaterials to Design Effective Scaffolds. J Funct Biomater 2018; 9:E50. [PMID: 30134538 PMCID: PMC6165026 DOI: 10.3390/jfb9030050] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 12/21/2022] Open
Abstract
Tissue engineering (TE) is a multidisciplinary science, which including principles from material science, biology and medicine aims to develop biological substitutes to restore damaged tissues and organs. A major challenge in TE is the choice of suitable biomaterial to fabricate a scaffold that mimics native extracellular matrix guiding resident stem cells to regenerate the functional tissue. Ideally, the biomaterial should be tailored in order that the final scaffold would be (i) biodegradable to be gradually replaced by regenerating new tissue, (ii) mechanically similar to the tissue to regenerate, (iii) porous to allow cell growth as nutrient, oxygen and waste transport and (iv) bioactive to promote cell adhesion and differentiation. With this perspective, this review discusses the options and challenges facing biomaterial selection when a scaffold has to be designed. We highlight the possibilities in the final mold the materials should assume and the most effective techniques for its fabrication depending on the target tissue, including the alternatives to ameliorate its bioactivity. Furthermore, particular attention has been given to the influence that all these aspects have on resident cells considering the frontiers of materiobiology. In addition, a focus on chitosan as a versatile biomaterial for TE scaffold fabrication has been done, highlighting its latest advances in the literature on bone, skin, cartilage and cornea TE.
Collapse
Affiliation(s)
- Ludovica Parisi
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Andrea Toffoli
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Giulia Ghiacci
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Guido M Macaluso
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| |
Collapse
|
92
|
Hao Y, Song J, Ravikrishnan A, Dicker KT, Fowler EW, Zerdoum AB, Li Y, Zhang H, Rajasekaran AK, Fox JM, Jia X. Rapid Bioorthogonal Chemistry Enables in Situ Modulation of the Stem Cell Behavior in 3D without External Triggers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26016-26027. [PMID: 30015482 PMCID: PMC6214352 DOI: 10.1021/acsami.8b07632] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Chemical modification of engineered microenvironments surrounding living cells represents a means for directing cellular behaviors through cell-matrix interactions. Presented here is a temporally controlled method for modulating the properties of biomimetic, synthetic extracellular matrices (ECM) during live cell culture employing the rapid, bioorthogonal tetrazine ligation with trans-cyclooctene (TCO) dienophiles. This approach is diffusion-controlled, cytocompatible, and does not rely on light, catalysts, or other external triggers. Human bone-marrow-derived mesenchymal stem cells (hMSCs) were initially entrapped in a hydrogel prepared using hyaluronic acid carrying sulfhydryl groups (HA-SH) and a hydrophilic polymer bearing both acrylate and tetrazine groups (POM-AT). Inclusion of a matrix metalloprotease (MMP)-degradable peptidic cross-linker enabled hMSC-mediated remodeling of the synthetic environment. The resultant network displayed dangling tetrazine groups for subsequent conjugation with TCO derivatives. Two days later, the stiffness of the matrix was increased by adding chemically modified HA carrying multiple copies of TCO (HA-TCO) to the hMSC growth media surrounding the cell-laden gel construct. In response, cells developed small processes radially around the cell body without a significant alteration of the overall shape. By contrast, modification of the 3D matrix with a TCO-tagged cell-adhesive motif caused the resident cells to undergo significant actin polymerization, changing from a rounded shape to spindle morphology with long cellular processes. After additional 7 days of culture in the growth media, quantitative analysis showed that, at the mRNA level, RGD tagging upregulated cellular expression of MMP1, but downregulated the expression of collagen I/III and tenascin C. RGD tagging, however, was not sufficient to induce the classic osteoblastic, chondrogenic, adipogenic, or fibroblastic/myofibroblastic differentiation. The modular approach allows facile manipulation of synthetic ECM to modulate cell behavior, thus potentially applicable to the engineering of functional tissues or tissue models.
Collapse
Affiliation(s)
- Ying Hao
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Jiyeon Song
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Anitha Ravikrishnan
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Kevin T. Dicker
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Eric W. Fowler
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Aidan B. Zerdoum
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Yi Li
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - He Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | | | - Joseph M. Fox
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19716, USA
| |
Collapse
|
93
|
Dharmarajan A, Floren M, Cox L, Ding Y, Johnson R, Tan W. Mechanochemical Effects on Extracellular Signal-Regulated Kinase Dynamics in Stem Cell Differentiation. Tissue Eng Part A 2018; 24:1179-1189. [PMID: 29969368 PMCID: PMC6080114 DOI: 10.1089/ten.tea.2017.0365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 01/22/2018] [Indexed: 12/20/2022] Open
Abstract
Understanding how key signaling molecules are coregulated by biochemical agents and physical stimuli during stem cell differentiation is critical but often lacking. Due to the important role of extracellular signal-regulated kinase (ERK), this study has examined its temporal dynamics to determine the coregulation of mechanochemical cues on ERK phosphorylation for smooth muscle cell (SMC) differentiation. To assess ERK1/2 activity, a fluorescence resonance energy transfer-based biosensor was transfected into mesenchymal stem cells. The influences of nanopatterned substrates, growth factors, and drugs on ERK activities were related to their effects on SMC differentiation. Results revealed that nanopatterned substrates significantly increased ERK activity in cells, overriding ERK response from administered biochemical factors. The nanopatterned substrates reduced expression of SMC markers after a 48-h biochemical treatment, except for the combination with ERK inhibitor PD98059 treatment, which enhanced expression of mature SMC marker MYH11. Immunofluorescent staining for focal adhesion proteins, vinculin and zyxin, indicated no significant differences in vinculin cluster distribution or dimension, while the location of zyxin changed from adhesion sites of cell periphery on nonpatterned substrate to actin filaments on nanopatterned substrate. The zyxin-reinforced stress fibers likely enhanced the cytoskeletal tension to increase ERK dynamics. Collectively, results suggest that physical stimuli play a dominating role in initial ERK signaling and early-stage differentiation through focal adhesion changes, and the capability of monitoring signaling events in real time could be exploited to guide the engineering of cell microenvironment.
Collapse
Affiliation(s)
- Anirudh Dharmarajan
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado
| | - Michael Floren
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado
| | - Lewis Cox
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado
| | - Yifu Ding
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado
| | - Richard Johnson
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado
| | - Wei Tan
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado
| |
Collapse
|
94
|
Zhu C, Qiu J, Pongkitwitoon S, Thomopoulos S, Xia Y. Inverse Opal Scaffolds with Gradations in Mineral Content for Spatial Control of Osteogenesis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706706. [PMID: 29847696 PMCID: PMC6269221 DOI: 10.1002/adma.201706706] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 03/28/2018] [Indexed: 05/14/2023]
Abstract
The design and fabrication of inverse opal scaffolds with gradations in mineral content to achieve spatial control of osteogenesis are described. The gradient in mineral content is established via the diffusion-limited transport of hydroxyapatite nanoparticles in a closely packed lattice of gelatin microbeads. The mineral-graded scaffold has an array of uniform pores and interconnected windows to facilitate efficient transport of nutrients and metabolic wastes, ensuring high cell viability. The graded distribution of mineral content can provide biochemical and mechanical cues for spatially regulating the osteogenic differentiation of adipose-derived stromal cells. This new class of scaffolds holds promise for engineering the interfaces between mineralized and unmineralized tissues.
Collapse
Affiliation(s)
- Chunlei Zhu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Jichuan Qiu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | | | - Stavros Thomopoulos
- Department of Orthopaedic Surgery, Columbia University, New York, NY, 10032, USA
- Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| |
Collapse
|
95
|
Direct Control of Stem Cell Behavior Using Biomaterials and Genetic Factors. Stem Cells Int 2018; 2018:8642989. [PMID: 29861745 PMCID: PMC5971247 DOI: 10.1155/2018/8642989] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/05/2018] [Accepted: 04/04/2018] [Indexed: 12/31/2022] Open
Abstract
Stem cells have recently emerged as an important candidate for cell therapy. However, some major limitations still exist such as a small quantity of cell supply, senescence, and insufficient differentiation efficiency. Therefore, there is an unmet need to control stem cell behavior for better clinical performance. Since native microenvironment factors including stem cell niche, genetic factors, and growth factors direct stem cell fate cooperatively, user-specified in vitro settings are required to understand the regulatory roles and effects of each factor, thereby applying the factors for improved cell therapy. Among others, various types of biomaterials and transfection method have been employed as key tools for development of the in vitro settings. This review focuses on the current strategies to improve stemness maintenance, direct differentiation, and reprogramming using biomaterials and genetic factors without any aids from additional biochemicals and growth factors.
Collapse
|
96
|
Zhu C, Pongkitwitoon S, Qiu J, Thomopoulos S, Xia Y. Design and Fabrication of a Hierarchically Structured Scaffold for Tendon-to-Bone Repair. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707306. [PMID: 29534316 PMCID: PMC6130203 DOI: 10.1002/adma.201707306] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/19/2018] [Indexed: 05/25/2023]
Abstract
A hierarchically structured scaffold is designed and fabricated for facilitating tendon-to-bone repair. The scaffold is composed of three regions with distinct functions: (i) an array of channels to guide the in-growth of cells and aligned deposition of collagen fibers, as well as integration of the scaffold with the tendon side, (ii) a region with a gradient in mineral composition to facilitate stress transfer between tendon and bone, and (iii) a mineralized inverse opal region to promote the integration of the scaffold with the underlying bone. Cell culture experiments confirm that adipose-derived stromal cells are able to infiltrate and proliferate through the entire thickness of the scaffold without compromised cell viability. The seeded stem cells exhibit directed differentiation into tenocytes and osteoblasts along the mineral gradient as a response to the gradient in Young's modulus. This novel scaffold holds great promise to promote the formation of a functional tendon-to-bone attachment by offering a structurally and compositionally appropriate microenvironment for healing.
Collapse
Affiliation(s)
- Chunlei Zhu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | | | - Jichuan Qiu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Stavros Thomopoulos
- Department of Orthopaedic Surgery, Columbia University, New York, NY, 10032, USA
- Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
- School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| |
Collapse
|
97
|
Hao W, Han J, Chu Y, Huang L, Sun J, Zhuang Y, Li X, Ma H, Chen Y, Dai J. Lower fluidity of supported lipid bilayers promotes neuronal differentiation of neural stem cells by enhancing focal adhesion formation. Biomaterials 2018; 161:106-116. [PMID: 29421547 DOI: 10.1016/j.biomaterials.2018.01.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 01/04/2018] [Accepted: 01/20/2018] [Indexed: 12/11/2022]
Abstract
Extensive studies have been performed to understand how the mechanical properties of a stem cell's microenvironment influence its behaviors. Supported lipid bilayers (SLBs), a well-known biomimetic platform, have been used to mimic the dynamic characteristics of the extracellular matrix (ECM) because of their fluidity. However, the effect of the fluidity of SLBs on stem cell fate is unknown. We constructed SLBs with different fluidities to explore the influence of fluidity on the differentiation of neural stem cells (NSCs). The results showed that the behavior of NSCs was highly dependent on the fluidity of SLBs. Low fluidity resulted in enhanced focal adhesion formation, a dense network of stress fibers, stretched and elongated cellular morphology and increased neuronal differentiation, while high fluidity led to less focal adhesion formation, immature stress fibers, round cellular morphology and more astrocyte differentiation. Mechanistic studies revealed that low fluidity may have enhanced focal adhesion formation, which activated FAK-MEK/ERK signaling pathways and ultimately promoted neuronal differentiation of NSCs. This work provides a strategy for manipulating the dynamic matrix surface for the development of culture substrates and tissue-engineered scaffolds, which may aid the understanding of how the dynamic ECM influences stem cell behaviors as well as improve the efficacy of stem cell applications.
Collapse
Affiliation(s)
- Wangping Hao
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Jie Han
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yun Chu
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; University of Science and Technology of China, Hefei, 230026, China
| | - Lei Huang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jie Sun
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, 400038, China
| | - Yan Zhuang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xiaoran Li
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Hongwei Ma
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yanyan Chen
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
| | - Jianwu Dai
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China.
| |
Collapse
|
98
|
Moeller J, Denisin AK, Sim JY, Wilson RE, Ribeiro AJS, Pruitt BL. Controlling cell shape on hydrogels using lift-off protein patterning. PLoS One 2018; 13:e0189901. [PMID: 29298336 PMCID: PMC5752030 DOI: 10.1371/journal.pone.0189901] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/04/2017] [Indexed: 01/08/2023] Open
Abstract
Polyacrylamide gels functionalized with extracellular matrix proteins are commonly used as cell culture platforms to evaluate the combined effects of extracellular matrix composition, cell geometry and substrate rigidity on cell physiology. For this purpose, protein transfer onto the surface of polyacrylamide hydrogels must result in geometrically well-resolved micropatterns with homogeneous protein distribution. Yet the outcomes of micropatterning methods have not been pairwise evaluated against these criteria. We report a high-fidelity photoresist lift-off patterning method to pattern ECM proteins on polyacrylamide hydrogels with elastic moduli ranging from 5 to 25 kPa. We directly compare the protein transfer efficiency and pattern geometrical accuracy of this protocol to the widely used microcontact printing method. Lift-off patterning achieves higher protein transfer efficiency, increases pattern accuracy, increases pattern yield, and reduces variability of these factors within arrays of patterns as it bypasses the drying and transfer steps of microcontact printing. We demonstrate that lift-off patterned hydrogels successfully control cell size and shape and enable long-term imaging of actin intracellular structure and lamellipodia dynamics when we culture epithelial cells on these substrates.
Collapse
Affiliation(s)
- Jens Moeller
- Department of Mechanical Engineering, Stanford University, Stanford, California, United States of America
| | - Aleksandra K. Denisin
- Department of Mechanical Engineering, Stanford University, Stanford, California, United States of America
- Department of Bioengineering, Stanford University, Stanford, California, United States of America
| | - Joo Yong Sim
- Department of Mechanical Engineering, Stanford University, Stanford, California, United States of America
| | - Robin E. Wilson
- Department of Mechanical Engineering, Stanford University, Stanford, California, United States of America
| | - Alexandre J. S. Ribeiro
- Department of Mechanical Engineering, Stanford University, Stanford, California, United States of America
| | - Beth L. Pruitt
- Department of Mechanical Engineering, Stanford University, Stanford, California, United States of America
- Department of Bioengineering, Stanford University, Stanford, California, United States of America
- Stanford Cardiovascular Institute, Stanford University, Stanford, California, United States of America
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California, United States of America
| |
Collapse
|
99
|
Thomas D, O'Brien T, Pandit A. Toward Customized Extracellular Niche Engineering: Progress in Cell-Entrapment Technologies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1703948. [PMID: 29194781 DOI: 10.1002/adma.201703948] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/12/2017] [Indexed: 06/07/2023]
Abstract
The primary aim in tissue engineering is to repair, replace, and regenerate dysfunctional tissues to restore homeostasis. Cell delivery for repair and regeneration is gaining impetus with our understanding of constructing tissue-like environments. However, the perpetual challenge is to identify innovative materials or re-engineer natural materials to model cell-specific tissue-like 3D modules, which can seamlessly integrate and restore functions of the target organ. To devise an optimal functional microenvironment, it is essential to define how simple is complex enough to trigger tissue regeneration or restore cellular function. Here, the purposeful transition of cell immobilization from a cytoprotection point of view to that of a cell-instructive approach is examined, with advances in the understanding of cell-material interactions in a 3D context, and with a view to further application of the knowledge for the development of newer and complex hierarchical tissue assemblies for better examination of cell behavior and offering customized cell-based therapies for tissue engineering.
Collapse
Affiliation(s)
- Dilip Thomas
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
- Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland
- Cardiovascular Institute, Stanford University, Palo Alto, CA, 94305, USA
| | - Timothy O'Brien
- Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland
| | - Abhay Pandit
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
| |
Collapse
|
100
|
Sun M, Chi G, Li P, Lv S, Xu J, Xu Z, Xia Y, Tan Y, Xu J, Li L, Li Y. Effects of Matrix Stiffness on the Morphology, Adhesion, Proliferation and Osteogenic Differentiation of Mesenchymal Stem Cells. Int J Med Sci 2018; 15:257-268. [PMID: 29483817 PMCID: PMC5820855 DOI: 10.7150/ijms.21620] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Accepted: 12/21/2017] [Indexed: 01/05/2023] Open
Abstract
BMMSCs have drawn great interest in tissue engineering and regenerative medicine attributable to their multi-lineage differentiation capacity. Increasing evidence has shown that the mechanical stiffness of extracellular matrix is a critical determinant for stem cell behaviors. However, it remains unknown how matrix stiffness influences MSCs commitment with changes in cell morphology, adhesion, proliferation, self-renewal and differentiation. We employed fibronectin coated polyacrylamide hydrogels with variable stiffnesses ranging from 13 to 68 kPa to modulate the mechanical environment of BMMSCs and found that the morphology and adhesion of BMMSCs were highly dependent on mechanical stiffness. Cells became more spread and more adhesive on substrates of higher stiffness. Similarly, the proliferation of BMMSCs increased as stiffness increased. Sox2 expression was lower during 4h to 1 week on the 13-16 kPa and 62-68 kPa, in contrast, it was higher during 4h to 1 week on the 48-53 kPa. Oct4 expression on 13-16 kPa was higher than 48-53 kPa at 4h, and it has no significant differences at other time point among three different stiffness groups. On 62-68 kPa, BMMSCs were able to be induced toward osteogenic phenotype and generated a markedly high level of RUNX2, ALP, and Osteopontin. The cells exhibited a polygonal morphology and larger spreading area. These results suggest that matrix stiffness modulates commitment of BMMSCs. Our findings may eventually aid in the development of novel, effective biomaterials for the applications in tissue engineering.
Collapse
Affiliation(s)
- Meiyu Sun
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Guangfan Chi
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Pengdong Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Shuang Lv
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Juanjuan Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Ziran Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Yuhan Xia
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Ye Tan
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Jiayi Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Lisha Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Yulin Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| |
Collapse
|