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Seitz M, Song Y, Lian XL, Ma Z, Jain E. Soft Polyethylene Glycol Hydrogels Support Human PSC Pluripotency and Morphogenesis. ACS Biomater Sci Eng 2024; 10:4525-4540. [PMID: 38973308 PMCID: PMC11234337 DOI: 10.1021/acsbiomaterials.4c00923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/05/2024] [Accepted: 06/05/2024] [Indexed: 07/09/2024]
Abstract
Lumenogenesis within the epiblast represents a critical step in early human development, priming the embryo for future specification and patterning events. However, little is known about the specific mechanisms that drive this process due to the inability to study the early embryo in vivo. While human pluripotent stem cell (hPSC)-based models recapitulate many aspects of the human epiblast, most approaches for generating these 3D structures rely on ill-defined, reconstituted basement membrane matrices. Here, we designed synthetic, nonadhesive polyethylene glycol (PEG) hydrogel matrices to better understand the role of matrix mechanical cues in iPSC morphogenesis, specifically elastic modulus. First, we identified a narrow range of hydrogel moduli that were conducive to the hPSC viability, pluripotency, and differentiation. We then used this platform to investigate the effects of the hydrogel modulus on lumenogenesis, finding that matrices of intermediate stiffness yielded the most epiblast-like aggregates. Conversely, stiffer matrices impeded lumen formation and apico-basal polarization, while the softest matrices yielded polarized but aberrant structures. Our approach offers a simple, modular platform for modeling the human epiblast and investigating the role of matrix cues in its morphogenesis.
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Affiliation(s)
- Michael
P. Seitz
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- Bioinspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Yuanhui Song
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- Bioinspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Xiaojun Lance Lian
- Department
of Biomedical Engineering, The Huck Institutes of the Life Sciences,
Department of Biology, Pennsylvania State
University, University
Park, Pennsylvania 16802, United States
| | - Zhen Ma
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- Bioinspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Era Jain
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- Bioinspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
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Bober Z, Aebisher D, Olek M, Kawczyk-Krupka A, Bartusik-Aebisher D. Multiple Cell Cultures for MRI Analysis. Int J Mol Sci 2022; 23:10109. [PMID: 36077507 PMCID: PMC9456466 DOI: 10.3390/ijms231710109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/25/2022] Open
Abstract
Magnetic resonance imaging (MRI) is an imaging method that enables diagnostics. In recent years, this technique has been widely used for research using cell cultures used in pharmaceutical science to understand the distribution of various drugs in a variety of biological samples, from cellular models to tissues. MRI's dynamic development in recent years, in addition to diagnostics, has allowed the method to be implemented to assess response to applied therapies. Conventional MRI imaging provides anatomical and pathological information. Due to advanced technology, MRI provides physiological information. The use of cell cultures is very important in the process of testing new synthesized drugs, cancer research, and stem cell research, among others. Two-dimensional (2D) cell cultures conducted under laboratory conditions, although they provide a lot of information, do not reflect the basic characteristics of the tumor. To replicate the tumor microenvironment in science, a three-dimensional (3D) culture of tumor cells was developed. This makes it possible to reproduce in vivo conditions where, in addition, there is a complex and dynamic process of cell-to-cell communication and cell-matrix interaction. In this work, we reviewed current research in 2D and 3D cultures and their use in MRI studies. Articles for each section were collected from PubMed, ScienceDirect, Web of Science, and Google Scholar.
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Affiliation(s)
- Zuzanna Bober
- Department of Photomedicine and Physical Chemistry, Medical College of Rzeszów University, University of Rzeszów, 35-310 Rzeszów, Poland
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of Rzeszów University, University of Rzeszów, 35-310 Rzeszów, Poland
| | - Marcin Olek
- Department of Orthodontics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland
| | - Aleksandra Kawczyk-Krupka
- Center for Laser Diagnostics and Therapy, Department of Internal Medicine, Angiology and Physical Medicine, Medical University of Silesia in Katowice, 41-902 Bytom, Poland
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College of Rzeszów University, University of Rzeszów, 35-310 Rzeszów, Poland
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Brown C, Agosta P, McKee C, Walker K, Mazzella M, Alamri A, Svinarich D, Chaudhry GR. Human primitive mesenchymal stem cell-derived retinal progenitor cells improved neuroprotection, neurogenesis, and vision in rd12 mouse model of retinitis pigmentosa. Stem Cell Res Ther 2022; 13:148. [PMID: 35395806 PMCID: PMC8994263 DOI: 10.1186/s13287-022-02828-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/20/2022] [Indexed: 01/05/2023] Open
Abstract
Background Currently, there is no treatment for retinal degenerative diseases (RDD) such as retinitis pigmentosa (RP). Stem cell-based therapies could provide promising opportunities to repair the damaged retina and restore vision. Thus far, primarily adult mesenchymal stem cells (MSCs) have been investigated in preclinical and clinical studies, and the results have not been convincing. We applied a new approach in which primitive (p) MSC-derived retinal progenitor cells (RPCs) were examined to treat retinal degeneration in an rd12 mouse model of RP. Methods Well-characterized pMSCs and RPCs labeled with PKH26 were intravitreally injected into rd12 mice. The vision and retinal function of transplanted animals were analyzed using electroretinography. Animals were killed 4 and 8 weeks after cell transplantation for histological, immunological, molecular, and transcriptomic analyses of the retina. Results Transplanted RPCs significantly improved vision and retinal thickness as well as function in rd12 mice. pMSCs and RPCs homed to distinct retinal layers. pMSCs homed to the retinal pigment epithelium, and RPCs migrated to the neural layers of the retina, where they improved the thickness of the respective layers and expressed cell-specific markers. RPCs induced anti-inflammatory and neuroprotective responses as well as upregulated the expression of genes involved in neurogenesis. The transcriptomic analysis showed that RPCs promoted neurogenesis and functional recovery of the retina through inhibition of BMP and activation of JAK/STAT and MAPK signaling pathways. Conclusions Our study demonstrated that RPCs countered inflammation, provided retinal protection, and promoted neurogenesis resulting in improved retinal structure and physiological function in rd12 mice. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02828-w.
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Affiliation(s)
- Christina Brown
- Department of Biological Sciences, Oakland University, Rochester, MI, 48309, USA.,OU-WB Institute for Stem Cell and Regenerative Medicine, Rochester, MI, 48309, USA
| | - Patrina Agosta
- Ascension Providence Hospital, Southfield, MI, 48075, USA
| | - Christina McKee
- Department of Biological Sciences, Oakland University, Rochester, MI, 48309, USA.,OU-WB Institute for Stem Cell and Regenerative Medicine, Rochester, MI, 48309, USA
| | - Keegan Walker
- Department of Biological Sciences, Oakland University, Rochester, MI, 48309, USA.,OU-WB Institute for Stem Cell and Regenerative Medicine, Rochester, MI, 48309, USA
| | - Matteo Mazzella
- Department of Biological Sciences, Oakland University, Rochester, MI, 48309, USA.,OU-WB Institute for Stem Cell and Regenerative Medicine, Rochester, MI, 48309, USA
| | - Ali Alamri
- Department of Biological Sciences, Oakland University, Rochester, MI, 48309, USA.,OU-WB Institute for Stem Cell and Regenerative Medicine, Rochester, MI, 48309, USA
| | | | - G Rasul Chaudhry
- Department of Biological Sciences, Oakland University, Rochester, MI, 48309, USA. .,OU-WB Institute for Stem Cell and Regenerative Medicine, Rochester, MI, 48309, USA.
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