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Kwartler CS, Pinelo JEE. Use of iPSC-Derived Smooth Muscle Cells to Model Physiology and Pathology. Arterioscler Thromb Vasc Biol 2024; 44:1523-1536. [PMID: 38695171 PMCID: PMC11209779 DOI: 10.1161/atvbaha.123.319703] [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] [Indexed: 06/28/2024]
Abstract
The implementation of human induced pluripotent stem cell (hiPSC) models has introduced an additional tool for identifying molecular mechanisms of disease that complement animal models. Patient-derived or CRISPR/Cas9-edited induced pluripotent stem cells differentiated into smooth muscle cells (SMCs) have been leveraged to discover novel mechanisms, screen potential therapeutic strategies, and model in vivo development. The field has evolved over almost 15 years of research using hiPSC-SMCs and has made significant strides toward overcoming initial challenges such as the lineage specificity of SMC phenotypes. However, challenges both specific (eg, the lack of specific markers to thoroughly validate hiPSC-SMCs) and general (eg, a lack of transparency and consensus around methodology in the field) remain. In this review, we highlight the recent successes and remaining challenges of the hiPSC-SMC model.
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Affiliation(s)
- Callie S. Kwartler
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Jose Emiliano Esparza Pinelo
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
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Browne S, Petit N, Quondamatteo F. Functionalised biomaterials as synthetic extracellular matrices to promote vascularisation and healing of diabetic wounds. Cell Tissue Res 2024; 395:133-145. [PMID: 38051351 DOI: 10.1007/s00441-023-03849-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 11/24/2023] [Indexed: 12/07/2023]
Abstract
Diabetic foot ulcers (DFU) are a type of chronic wound that constitute one of the most serious and debilitating complications associated with diabetes. The lack of clinically efficacious treatments to treat these recalcitrant wounds can lead to amputations for those worst affected. Biomaterial-based approaches offer great hope in this regard, as they provide a template for cell infiltration and tissue repair. However, there is an additional need to treat the underlying pathophysiology of DFUs, in particular insufficient vascularization of the wound which significantly hampers healing. Thus, the addition of pro-angiogenic moieties to biomaterials is a promising strategy to promote the healing of DFUs and other chronic wounds. In this review, we discuss the potential of biomaterials as treatments for DFU and the approaches that can be taken to functionalise these biomaterials such that they promote vascularisation and wound healing in pre-clinical models.
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Affiliation(s)
- Shane Browne
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Dublin, Ireland.
- CÚRAM, Centre for Research in Medical Devices, University of Galway, H91 W2TY, Galway, Ireland.
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland.
| | - Noémie Petit
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Dublin, Ireland
| | - Fabio Quondamatteo
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Dublin, Ireland.
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Genç H, Cianciosi A, Lohse R, Stahlhut P, Groll J, Alexiou C, Cicha I, Jüngst T. Adjusting Degree of Modification and Composition of gelAGE-Based Hydrogels Improves Long-Term Survival and Function of Primary Human Fibroblasts and Endothelial Cells in 3D Cultures. Biomacromolecules 2023; 24:1497-1510. [PMID: 36786807 DOI: 10.1021/acs.biomac.2c01536] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
This study aimed to develop a suitable hydrogel-based 3D platform to support long-term culture of primary endothelial cells (ECs) and fibroblasts. Two hydrogel systems based on allyl-modified gelatin (gelAGE), G1MM and G2LH, were cross-linked via thiol-ene click reaction with a four-arm thiolated polyethylene glycol (PEG-4-SH). Compared to G1MM, the G2LH hydrogel was characterized by the lower polymer content and cross-linking density with a softer matrix and homogeneous and open porosity. Cell viability in both hydrogels was comparable, although the G2LH-based platform supported better F-actin organization, cell-cell interactions, and collagen and fibronectin production. In co-cultures, early morphogenesis leading to tubular-like structures was observed within 2 weeks. Migration of fibroblasts out of spheroids embedded in the G2LH hydrogels started after 5 days of incubation. Taken together, the results demonstrated that the G2LH hydrogel fulfilled the demands of both ECs and fibroblasts to enable long-term culture and matrix remodeling.
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Affiliation(s)
- Hatice Genç
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Endowed Professorship for Nanomedicine, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Alessandro Cianciosi
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg 97070, Germany
| | - Raphael Lohse
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Endowed Professorship for Nanomedicine, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Philipp Stahlhut
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg 97070, Germany
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg 97070, Germany
| | - Christoph Alexiou
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Endowed Professorship for Nanomedicine, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Iwona Cicha
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Endowed Professorship for Nanomedicine, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Tomasz Jüngst
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg 97070, Germany
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Islam S, Parker J, Dash BC, Hsia HC. Human iPSC-Vascular smooth muscle cell spheroids demonstrate size-dependent alterations in cellular viability and secretory function. J Biomed Mater Res A 2022; 110:1813-1823. [PMID: 35815599 DOI: 10.1002/jbm.a.37423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/08/2022] [Accepted: 06/15/2022] [Indexed: 11/11/2022]
Abstract
Human-induced pluripotent stem cells (hiPSC) and their differentiated vascular cells have been revolutionizing the field of regenerative wound healing. These cells are shown to be rejuvenated with immense potentials in secreting paracrine factors. Recently, hiPSC-derived vascular smooth muscle cells (hiPSC-VSMC) have shown regenerative wound healing ability via their paracrine secretion. The quest to modulate the secretory function of these hiPSC-VSMC is an ongoing effort and involves the use of both biochemical and biophysical stimuli. This study explores the development and optimization of a reproducible, inexpensive protocol to form hiPSC-VSMC derived spheroids to investigate the implications of spheroid size on viability and paracrine secretion. Our data show the successful formation of different sizes of spheroids using various amount of hiPSC-VSMC. The hiPSC-VSMC spheroids formed with 10,000 cells strike an ideal balance between overall cell health and maximal paracrine secretion. The conditioned medium from these spheroids was found to be bioactive in enhancing human dermal fibroblast cell proliferation and migration. This research will inform future studies on the optimal spheroid size for regenerative wound healing applications.
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Affiliation(s)
- Sara Islam
- Section of Plastic Surgery, Department of Surgery, Yale School of Medicine, Yale University, New Haven, Connecticut, USA
| | - Jackson Parker
- Section of Plastic Surgery, Department of Surgery, Yale School of Medicine, Yale University, New Haven, Connecticut, USA
| | - Biraja C Dash
- Section of Plastic Surgery, Department of Surgery, Yale School of Medicine, Yale University, New Haven, Connecticut, USA
| | - Henry C Hsia
- Section of Plastic Surgery, Department of Surgery, Yale School of Medicine, Yale University, New Haven, Connecticut, USA.,Department of Biomedical Engineering, Yale University, New Haven, Connecticut, USA
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