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Buckley C, Wang H, O'Dell R, Del Rosario M, Parimala Chelvi Ratnamani M, Rome M, Wang H. Creation of Porous, Perfusable Micro tubular Networks for Improved Cell Viability in Volumetric Hydrogels. ACS Appl Mater Interfaces 2024; 16:18522-18533. [PMID: 38564436 DOI: 10.1021/acsami.4c00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The creation of large, volumetric tissue-engineered constructs has long been hindered due to the lack of effective vascularization strategies. Recently, 3D printing has emerged as a viable approach to creating vascular structures; however, its application is limited. Here, we present a simple and controllable technique to produce porous, free-standing, perfusable tubular networks from sacrificial templates of polyelectrolyte complex and coatings of salt-containing citrate-based elastomer poly(1,8-octanediol-co-citrate) (POC). As demonstrated, fully perfusable and interconnected POC tubular networks with channel diameters ranging from 100 to 400 μm were created. Incorporating NaCl particulates into the POC coating enabled the formation of micropores (∼19 μm in diameter) in the tubular wall upon particulate leaching to increase the cross-wall fluid transport. Casting and cross-linking gelatin methacrylate (GelMA) suspended with human osteoblasts over the free-standing porous POC tubular networks led to the fabrication of 3D cell-encapsulated constructs. Compared to the constructs without POC tubular networks, those with either solid or porous wall tubular networks exhibited a significant increase in cell viability and proliferation along with healthy cell morphology, particularly those with porous networks. Taken together, the sacrificial template-assisted approach is effective to fabricate tubular networks with controllable channel diameter and patency, which can be easily incorporated into cell-encapsulated hydrogels or used as tissue-engineering scaffolds to improve cell viability.
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Affiliation(s)
- Christian Buckley
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Semcer Center for Healthcare Innovation, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Haoyu Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Semcer Center for Healthcare Innovation, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Robert O'Dell
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Matthew Del Rosario
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Matangi Parimala Chelvi Ratnamani
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Semcer Center for Healthcare Innovation, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Mark Rome
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Hongjun Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Semcer Center for Healthcare Innovation, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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Poon CLC, Liu W, Song Y, Gomez M, Kulaberoglu Y, Zhang X, Xu W, Veraksa A, Hergovich A, Ghabrial A, Harvey KF. A Hippo-like Signaling Pathway Controls Tracheal Morphogenesis in Drosophila melanogaster. Dev Cell 2018; 47:564-575.e5. [PMID: 30458981 DOI: 10.1016/j.devcel.2018.09.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 08/26/2018] [Accepted: 09/28/2018] [Indexed: 11/29/2022]
Abstract
Hippo-like pathways are ancient signaling modules first identified in yeasts. The best-defined metazoan module forms the core of the Hippo pathway, which regulates organ size and cell fate. Hippo-like kinase modules consist of a Sterile 20-like kinase, an NDR kinase, and non-catalytic protein scaffolds. In the Hippo pathway, the upstream kinase Hippo can be activated by another kinase, Tao-1. Here, we delineate a related Hippo-like signaling module that Tao-1 regulates to control tracheal morphogenesis in Drosophila melanogaster. Tao-1 activates the Sterile 20-like kinase GckIII by phosphorylating its activation loop, a mode of regulation that is conserved in humans. Tao-1 and GckIII act upstream of the NDR kinase Tricornered to ensure proper tube formation in trachea. Our study reveals that Tao-1 activates two related kinase modules to control both growth and morphogenesis. The Hippo-like signaling pathway we have delineated has a potential role in the human vascular disease cerebral cavernous malformation.
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Affiliation(s)
- Carole L C Poon
- Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Weijie Liu
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, 630 West 168th Street, New York, NY 10032, USA
| | - Yanjun Song
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, 630 West 168th Street, New York, NY 10032, USA
| | - Marta Gomez
- University College London, Cancer Institute, London WC1E 6BT, UK
| | | | - Xiaomeng Zhang
- Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Wenjian Xu
- Department of Biology, University of Massachusetts Boston, Boston, MA 02125, USA
| | - Alexey Veraksa
- Department of Biology, University of Massachusetts Boston, Boston, MA 02125, USA
| | | | - Amin Ghabrial
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, 630 West 168th Street, New York, NY 10032, USA
| | - Kieran F Harvey
- Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia; Department of Pathology, University of Melbourne, Parkville, VIC 3010, Australia; Department of Anatomy and Developmental Biology and Biomedicine Discovery Institute, Monash University, Clayton, VIC 3168, Australia.
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