1
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Boyd-Shiwarski CR, Shiwarski DJ, Subramanya AR. A New Phase for WNK Kinase Signaling Complexes as Biomolecular Condensates. Physiology (Bethesda) 2024. [PMID: 38624245 DOI: 10.1152/physiol.00013.2024] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024] Open
Abstract
The purpose of this review is to highlight transformative advances that have been made in the field of biomolecular condensates with special emphasis on condensate material properties, physiology, and kinases, using the With-No-Lysine (WNK) Kinases as a prototypical example. To convey how WNK kinases illustrate important concepts for biomolecular condensates, we start with a brief history, focus on defining features of biomolecular condensates, and delve into some examples of how condensates are implicated in cellular physiology (and pathophysiology). We then highlight how WNK kinases, through the action of "WNK droplets" that ubiquitously regulate intracellular volume, and kidney-specific "WNK bodies" that are implicated in distal tubule salt reabsorption and potassium homeostasis, exemplify many of the defining features of condensates. Lastly, this review will address the controversies within this emerging field and questions to address.
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Affiliation(s)
- Cary R Boyd-Shiwarski
- Medicine, Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, PA, United States
| | | | - Arohan R Subramanya
- Dept of Medicine, Renal-Electrolyte Division, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
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2
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Shiwarski DJ, Hudson AR, Tashman JW, Bakirci E, Moss S, Coffin BD, Feinberg AW. 3D Bioprinting of Collagen-based Microfluidics for Engineering Fully-biologic Tissue Systems. bioRxiv 2024:2024.01.26.577422. [PMID: 38352326 PMCID: PMC10862740 DOI: 10.1101/2024.01.26.577422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Microfluidic and organ-on-a-chip devices have improved the physiologic and translational relevance of in vitro systems in applications ranging from disease modeling to drug discovery and pharmacology. However, current manufacturing approaches have limitations in terms of materials used, non-native mechanical properties, patterning of extracellular matrix (ECM) and cells in 3D, and remodeling by cells into more complex tissues. We present a method to 3D bioprint ECM and cells into microfluidic collagen-based high-resolution internally perfusable scaffolds (CHIPS) that address these limitations, expand design complexity, and simplify fabrication. Additionally, CHIPS enable size-dependent diffusion of molecules out of perfusable channels into the surrounding device to support cell migration and remodeling, formation of capillary-like networks, and integration of secretory cell types to form a glucose-responsive, insulin-secreting pancreatic-like microphysiological system.
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Affiliation(s)
- Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Andrew R Hudson
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Ezgi Bakirci
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Samuel Moss
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Brian D Coffin
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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3
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Lee I, Surendran A, Fleury S, Gimino I, Curtiss A, Fell C, Shiwarski DJ, Refy O, Rothrock B, Jo S, Schwartzkopff T, Mehta AS, Wang Y, Sipe A, John S, Ji X, Nikiforidis G, Feinberg AW, Hester J, Weber DJ, Veiseh O, Rivnay J, Cohen-Karni T. Electrocatalytic on-site oxygenation for transplanted cell-based-therapies. Nat Commun 2023; 14:7019. [PMID: 37945597 PMCID: PMC10636048 DOI: 10.1038/s41467-023-42697-2] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 10/19/2023] [Indexed: 11/12/2023] Open
Abstract
Implantable cell therapies and tissue transplants require sufficient oxygen supply to function and are limited by a delay or lack of vascularization from the transplant host. Previous exogenous oxygenation strategies have been bulky and had limited oxygen production or regulation. Here, we show an electrocatalytic approach that enables bioelectronic control of oxygen generation in complex cellular environments to sustain engineered cell viability and therapy under hypoxic stress and at high cell densities. We find that nanostructured sputtered iridium oxide serves as an ideal catalyst for oxygen evolution reaction at neutral pH. We demonstrate that this approach exhibits a lower oxygenation onset and selective oxygen production without evolution of toxic byproducts. We show that this electrocatalytic on site oxygenator can sustain high cell loadings (>60k cells/mm3) in hypoxic conditions in vitro and in vivo. Our results showcase that exogenous oxygen production devices can be readily integrated into bioelectronic platforms, enabling high cell loadings in smaller devices with broad applicability.
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Affiliation(s)
- Inkyu Lee
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Abhijith Surendran
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
| | - Samantha Fleury
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Ian Gimino
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Alexander Curtiss
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, USA
| | - Cody Fell
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Omar Refy
- Department of Physics, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Blaine Rothrock
- Department of Computer Science, Northwestern University, Evanston, IL, USA
| | - Seonghan Jo
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Tim Schwartzkopff
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Abijeet Singh Mehta
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
| | - Yingqiao Wang
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Adam Sipe
- Department of Material Science and Engineering, The Pennsylvania State University, State College, PA, USA
| | - Sharon John
- Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Xudong Ji
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
- Simpson Querrey Institute, Northwestern University, Chicago, IL, USA
| | - Georgios Nikiforidis
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
| | - Adam W Feinberg
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Josiah Hester
- Interactive Computing and Computer Science, Georgia Institute of Technology, Atlanta, GA, USA
| | - Douglas J Weber
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
- Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, USA
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Omid Veiseh
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Jonathan Rivnay
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA.
- Simpson Querrey Institute, Northwestern University, Chicago, IL, USA.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.
| | - Tzahi Cohen-Karni
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
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4
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Behre A, Tashman JW, Dikyol C, Shiwarski DJ, Crum RJ, Johnson SA, Kommeri R, Hussey GS, Badylak SF, Feinberg AW. 3D Bioprinted Patient-Specific Extracellular Matrix Scaffolds for Soft Tissue Defects. Adv Healthc Mater 2022; 11:e2200866. [PMID: 36063047 PMCID: PMC9780169 DOI: 10.1002/adhm.202200866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 04/16/2022] [Revised: 08/02/2022] [Indexed: 01/28/2023]
Abstract
Soft tissue injuries such as volumetric muscle loss (VML) are often too large to heal normally on their own, resulting in scar formation and functional deficits. Decellularized extracellular matrix (dECM) scaffolds placed into these wounds have shown the ability to modulate the immune response and drive constructive healing. This provides a potential solution for functional tissue regeneration, however, these acellular dECM scaffolds are challenging to fabricate into complex geometries. 3D bioprinting is uniquely positioned to address this, being able to create patient-specific scaffolds based on clinical 3D imaging data. Here, a process to use freeform reversible embedding of suspended hydrogels (FRESH) 3D bioprinting and computed tomography (CT) imaging to build large volume, patient-specific dECM patches (≈12 × 8 × 2 cm) for implantation into canine VML wound models is developed. Quantitative analysis shows that these dECM patches are dimensionally accurate and conformally adapt to the surface of complex wounds. Finally, this approach is extended to a human VML injury to demonstrate the fabrication of clinically relevant dECM scaffolds with precise control over fiber alignment and micro-architecture. Together these advancements represent a step towards an improved, clinically translatable, patient-specific treatment for soft tissue defects from trauma, tumor resection, and other surgical procedures.
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Affiliation(s)
- Anne Behre
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Caner Dikyol
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Raphael J Crum
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Scott A Johnson
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Remya Kommeri
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - George S Hussey
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
- Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
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5
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Boyd-Shiwarski CR, Shiwarski DJ, Griffiths SE, Beacham RT, Norrell L, Morrison DE, Wang J, Mann J, Tennant W, Anderson EN, Franks J, Calderon M, Connolly KA, Cheema MU, Weaver CJ, Nkashama LJ, Weckerly CC, Querry KE, Pandey UB, Donnelly CJ, Sun D, Rodan AR, Subramanya AR. WNK kinases sense molecular crowding and rescue cell volume via phase separation. Cell 2022; 185:4488-4506.e20. [PMID: 36318922 PMCID: PMC9699283 DOI: 10.1016/j.cell.2022.09.042] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [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: 01/24/2022] [Revised: 07/23/2022] [Accepted: 09/29/2022] [Indexed: 11/24/2022]
Abstract
When challenged by hypertonicity, dehydrated cells must recover their volume to survive. This process requires the phosphorylation-dependent regulation of SLC12 cation chloride transporters by WNK kinases, but how these kinases are activated by cell shrinkage remains unknown. Within seconds of cell exposure to hypertonicity, WNK1 concentrates into membraneless condensates, initiating a phosphorylation-dependent signal that drives net ion influx via the SLC12 cotransporters to restore cell volume. WNK1 condensate formation is driven by its intrinsically disordered C terminus, whose evolutionarily conserved signatures are necessary for efficient phase separation and volume recovery. This disorder-encoded phase behavior occurs within physiological constraints and is activated in vivo by molecular crowding rather than changes in cell size. This allows kinase activity despite an inhibitory ionic milieu and permits cell volume recovery through condensate-mediated signal amplification. Thus, WNK kinases are physiological crowding sensors that phase separate to coordinate a cell volume rescue response.
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Affiliation(s)
- Cary R Boyd-Shiwarski
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Pittsburgh Center for Kidney Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Shawn E Griffiths
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Rebecca T Beacham
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Logan Norrell
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84132, USA
| | - Daryl E Morrison
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84132, USA
| | - Jun Wang
- Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Jacob Mann
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - William Tennant
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Eric N Anderson
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Jonathan Franks
- Center for Biological Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Michael Calderon
- Center for Biological Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Kelly A Connolly
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Muhammad Umar Cheema
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Claire J Weaver
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Lubika J Nkashama
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Claire C Weckerly
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Katherine E Querry
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Udai Bhan Pandey
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Center for Protein Conformational Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Christopher J Donnelly
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Center for Protein Conformational Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Dandan Sun
- Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; VA Pittsburgh Healthcare System, Pittsburgh, PA 15240, USA
| | - Aylin R Rodan
- Department of Human Genetics, University of Utah, Salt Lake City, UT 84132, USA; Molecular Medicine Program, University of Utah, Salt Lake City, UT 84132, USA; Department of Internal Medicine, Division of Nephrology and Hypertension, University of Utah, Salt Lake City, UT 84132, USA; Medical Service, VA Salt Lake City Health Care System, Salt Lake City, UT 84148, USA
| | - Arohan R Subramanya
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Center for Protein Conformational Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Pittsburgh Center for Kidney Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; VA Pittsburgh Healthcare System, Pittsburgh, PA 15240, USA.
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6
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Tashman JW, Shiwarski DJ, Coffin B, Ruesch A, Lanni F, Kainerstorfer JM, Feinberg AW. In situvolumetric imaging and analysis of FRESH 3D bioprinted constructs using optical coherence tomography. Biofabrication 2022; 15. [PMID: 36195056 DOI: 10.1088/1758-5090/ac975e] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 10/04/2022] [Indexed: 11/12/2022]
Abstract
As 3D bioprinting has grown as a fabrication technology, so too has the need for improved analytical methods to characterize engineered constructs. This is especially challenging for engineered tissues composed of hydrogels and cells, as these materials readily deform when trying to assess print fidelity and other properties non-destructively. Establishing that the 3D architecture of the bioprinted construct matches its intended anatomic design is critical given the importance of structure-function relationships in most tissue types. Here we report development of a multimaterial bioprinting platform with integrated optical coherence tomography forin situvolumetric imaging, error detection, and 3D reconstruction. We also report improvements to the freeform reversible embedding of suspended hydrogels bioprinting process through new collagen bioink compositions, gelatin microparticle support bath optical clearing, and optimized machine pathing. This enables quantitative 3D volumetric imaging with micron resolution over centimeter length scales, the ability to detect a range of print defect types within a 3D volume, and real-time imaging of the printing process at each print layer. These advances provide a comprehensive methodology for print quality assessment, paving the way toward the production and process control required for achieving regulatory approval and ultimately clinical translation of engineered tissues.
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Affiliation(s)
- Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America
| | - Brian Coffin
- Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America
| | - Alexander Ruesch
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America
| | - Frederick Lanni
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America
| | - Jana M Kainerstorfer
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America.,Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States of America
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7
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Abstract
Three-dimensional (3D) bioprinting is a transformative technology for engineering tissues for disease modeling and drug screening and building tissues and organs for repair, regeneration, and replacement. In this Viewpoint, we discuss technological advances in 3D bioprinting, key remaining challenges, and essential milestones toward clinical translation.
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Affiliation(s)
- Jacqueline M Bliley
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.,Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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8
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Shiwarski DJ, Hudson A, Tashman J, Straub A, Feinberg A. FRESH 3D Bioprinted Collagen‐based Resistance Vessels and Multiscale Vascular Microfluidics. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r6022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Andrew Hudson
- Biomedical EngineeringCarnegie Mellon UniversityPittsburghPA
| | - Joshua Tashman
- Biomedical EngineeringCarnegie Mellon UniversityPittsburghPA
| | - Adam Straub
- Pharmacology and Chemical BiologyUniversity of Pittsburgh School of MedicinePittsburghPA
| | - Adam Feinberg
- Biomedical EngineeringCarnegie Mellon UniversityPittsburghPA
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9
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Dosunmu-Ogunbi A, Yuan S, Shiwarski DJ, Tashman JW, Reynolds M, Feinberg A, Novelli EM, Shiva S, Straub AC. Endothelial superoxide dismutase 2 is decreased in sickle cell disease and regulates fibronectin processing. Function (Oxf) 2022; 3:zqac005. [PMID: 35274104 PMCID: PMC8900267 DOI: 10.1093/function/zqac005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/05/2022] [Accepted: 02/10/2022] [Indexed: 01/07/2023]
Abstract
Sickle cell disease (SCD) is a genetic red blood cell disorder characterized by increased reactive oxygen species (ROS) and a concordant reduction in antioxidant capacity in the endothelium. Superoxide dismutase 2 (SOD2) is a mitochondrial-localized enzyme that catalyzes the dismutation of superoxide to hydrogen peroxide. Decreased peripheral blood expression of SOD2 is correlated with increased hemolysis and cardiomyopathy in SCD. Here, we report for the first time that endothelial cells exhibit reduced SOD2 protein expression in the pulmonary endothelium of SCD patients. To investigate the impact of decreased SOD2 expression in the endothelium, SOD2 was knocked down in human pulmonary microvascular endothelial cells (hPMVECs). We found that SOD2 deficiency in hPMVECs results in endothelial cell dysfunction, including reduced cellular adhesion, diminished migration, integrin protein dysregulation, and disruption of permeability. Furthermore, we uncover that SOD2 mediates changes in endothelial cell function via processing of fibronectin through its inability to facilitate dimerization. These results demonstrate that endothelial cells are deficient in SOD2 expression in SCD patients and suggest a novel pathway for SOD2 in regulating fibronectin processing.
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Affiliation(s)
- Atinuke Dosunmu-Ogunbi
- Medical Scientist Training Program, University of Pittsburgh School of Medicine, 15261, Pittsburgh, PA, USA,Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, 15261, Pittsburgh, PA, USA,Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, 15261, Pittsburgh, PA, USA
| | - Shuai Yuan
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, 15261, Pittsburgh, PA, USA
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, 15261, Pittsburgh, PA, USA
| | - Joshua W Tashman
- Medical Scientist Training Program, University of Pittsburgh School of Medicine, 15261, Pittsburgh, PA, USA,Department of Biomedical Engineering, Carnegie Mellon University, 15261, Pittsburgh, PA, USA
| | - Michael Reynolds
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, 15261, Pittsburgh, PA, USA
| | - Adam Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, 15261, Pittsburgh, PA, USA,Department of Materials Science and Engineering, Carnegie Mellon University, 15261, Pittsburgh, PA, USA
| | - Enrico M Novelli
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, 15261, Pittsburgh, PA, USA,Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, 15261, Pittsburgh, PA, USA
| | - Sruti Shiva
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, 15261, Pittsburgh, PA, USA,Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, 15261, Pittsburgh, PA, USA
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10
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Abstract
Hydrogels are candidate building blocks in a wide range of biomaterial applications including soft and biohybrid robotics, microfluidics, and tissue engineering. Recent advances in embedded 3D printing have broadened the design space accessible with hydrogel additive manufacturing. Specifically, the Freeform Reversible Embedding of Suspended Hydrogels (FRESH) technique has enabled the fabrication of complex 3D structures using extremely soft hydrogels, e.g., alginate and collagen, by assembling hydrogels within a fugitive support bath. However, the low structural rigidity of FRESH printed hydrogels limits their applications, especially those that require operation in nonaqueous environments. In this study, we demonstrated long-fiber embedded hydrogel 3D printing using a multihead printing platform consisting of a custom-built fiber extruder and an open-source FRESH bioprinter with high embedding fidelity. Using this process, fibers were embedded in 3D printed hydrogel components to achieve significant structural reinforcement (e.g., tensile modulus improved from 56.78 ± 8.76 to 382.55 ± 25.29 kPa and tensile strength improved from 9.44 ± 2.28 to 45.05 ± 5.53 kPa). In addition, we demonstrated the versatility of this technique by using fibers of a wide range of sizes and material types and implementing different 2D and 3D embedding patterns, such as embedding a conical helix using electrochemically aligned collagen fiber via nonplanar printing. Moreover, the technique was implemented using low-cost material and is compatible with open-source software and hardware, which facilitates its adoption and modification for new research applications.
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Affiliation(s)
- Wenhuan Sun
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.,Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Victoria A Webster-Wood
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.,Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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11
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Bliley JM, Vermeer MCSC, Duffy RM, Batalov I, Kramer D, Tashman JW, Shiwarski DJ, Lee A, Teplenin AS, Volkers L, Coffin B, Hoes MF, Kalmykov A, Palchesko RN, Sun Y, Jongbloed JDH, Bomer N, de Boer RA, Suurmeijer AJH, Pijnappels DA, Bolling MC, van der Meer P, Feinberg AW. Dynamic loading of human engineered heart tissue enhances contractile function and drives a desmosome-linked disease phenotype. Sci Transl Med 2021; 13:13/603/eabd1817. [PMID: 34290054 DOI: 10.1126/scitranslmed.abd1817] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 07/02/2021] [Indexed: 12/23/2022]
Abstract
The role that mechanical forces play in shaping the structure and function of the heart is critical to understanding heart formation and the etiology of disease but is challenging to study in patients. Engineered heart tissues (EHTs) incorporating human induced pluripotent stem cell (hiPSC)-derived cardiomyocytes have the potential to provide insight into these adaptive and maladaptive changes. However, most EHT systems cannot model both preload (stretch during chamber filling) and afterload (pressure the heart must work against to eject blood). Here, we have developed a new dynamic EHT (dyn-EHT) model that enables us to tune preload and have unconstrained contractile shortening of >10%. To do this, three-dimensional (3D) EHTs were integrated with an elastic polydimethylsiloxane strip providing mechanical preload and afterload in addition to enabling contractile force measurements based on strip bending. Our results demonstrated that dynamic loading improves the function of wild-type EHTs on the basis of the magnitude of the applied force, leading to improved alignment, conduction velocity, and contractility. For disease modeling, we used hiPSC-derived cardiomyocytes from a patient with arrhythmogenic cardiomyopathy due to mutations in the desmoplakin gene. We demonstrated that manifestation of this desmosome-linked disease state required dyn-EHT conditioning and that it could not be induced using 2D or standard 3D EHT approaches. Thus, a dynamic loading strategy is necessary to provoke the disease phenotype of diastolic lengthening, reduction of desmosome counts, and reduced contractility, which are related to primary end points of clinical disease, such as chamber thinning and reduced cardiac output.
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Affiliation(s)
- Jacqueline M Bliley
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Mathilde C S C Vermeer
- Department of Cardiology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Rebecca M Duffy
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Ivan Batalov
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Duco Kramer
- Department of Dermatology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Joshua W Tashman
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Daniel J Shiwarski
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Andrew Lee
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Alexander S Teplenin
- Department of Cardiology, Heart Lung Center Leiden, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Linda Volkers
- Department of Cardiology, Heart Lung Center Leiden, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Brian Coffin
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Martijn F Hoes
- Department of Cardiology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Anna Kalmykov
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Rachelle N Palchesko
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Yan Sun
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Jan D H Jongbloed
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Nils Bomer
- Department of Cardiology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Albert J H Suurmeijer
- Department of Pathology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Daniel A Pijnappels
- Department of Cardiology, Heart Lung Center Leiden, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Maria C Bolling
- Department of Dermatology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands
| | - Peter van der Meer
- Department of Cardiology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, Netherlands.
| | - Adam W Feinberg
- Regenerative Biomaterials and Therapeutics Group, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA. .,Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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12
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Tashman JW, Shiwarski DJ, Feinberg AW. A high performance open-source syringe extruder optimized for extrusion and retraction during FRESH 3D bioprinting. HardwareX 2021; 9:e00170. [PMID: 34746519 PMCID: PMC8570565 DOI: 10.1016/j.ohx.2020.e00170] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/19/2020] [Accepted: 12/29/2020] [Indexed: 05/27/2023]
Abstract
Recent advances in embedded 3D bioprinting have significantly improved the resolution of individual filaments to below 100 μm; however, printing with such small filaments requires accurate extrusion of nanoliter volumes of bioink. Commercially available bioprinters and extruders are expensive and most utilize pneumatic control, which limits the minimum extrusion volume and prevents retraction (pulling bioink back into the reservoir), which is essential to printing high resolution features and complex internal geometry. Here we present a new generation of our open-source syringe pump designed for extrusion-based 3D bioprinting of soft materials: the Replistruder 4. The Replistruder 4 takes advantage of the geometry customizability and ease of 3D plastic printing while improving performance by integrating mass produced high-precision linear motion components. Simultaneously this new syringe pump remains compact and lightweight enough for several to be utilized on a 3D bioprinter for multimaterial bioprinting. To facilitate multiple use cases the Replistruder 4 is compatible with a range of syringes including disposable BD and Hamilton gastight syringes. In addition, we describe the process of designing clamps for other syringes. We demonstrate the performance of a Replistruder 4 with a 2.5 mL Hamilton gastight syringe by printing collagen type I constructs with individual filaments comprising 3.35 nL and patent channels down to 300 μm in width. With smaller volume Hamilton gastight syringes this performance can be further improved. Thus, the Replistruder 4 provides an open-source solution to print soft materials at the resolution limits of current embedded bioprinting platforms.
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Affiliation(s)
- Joshua W. Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
| | - Daniel J. Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
| | - Adam W. Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
- Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
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13
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Shiwarski DJ, Hudson AR, Tashman JW, Feinberg AW. Emergence of FRESH 3D printing as a platform for advanced tissue biofabrication. APL Bioeng 2021; 5:010904. [PMID: 33644626 PMCID: PMC7889293 DOI: 10.1063/5.0032777] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/06/2021] [Indexed: 12/15/2022] Open
Abstract
In tissue engineering, an unresolved challenge is how to build complex 3D scaffolds in order to recreate the structure and function of human tissues and organs. Additive manufacturing techniques, such as 3D bioprinting, have the potential to build biological material with unprecedented spatial control; however, printing soft biological materials in air often results in poor fidelity. Freeform Reversible Embedding of Suspended Hydrogels (FRESH) is an embedded printing approach that solves this problem by extruding bioinks within a yield-stress support bath that holds the bioinks in place until cured. In this Perspective, we discuss the challenges of 3D printing soft and liquid-like bioinks and the emergence for FRESH and related embedded printing techniques as a solution. This includes the development of FRESH and embedded 3D printing within the bioprinting field and the rapid growth in adoption, as well as the advantages of FRESH printing for biofabrication and the new research results this has enabled. Specific focus is on the customizability of the FRESH printing technique where the chemical composition of the yield-stress support bath and aqueous phase crosslinker can all be tailored for printing a wide range of bioinks in complex 3D structures. Finally, we look ahead at the future of FRESH printing, discussing both the challenges and the opportunities that we see as the biofabrication field develops.
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Affiliation(s)
- Daniel J. Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Andrew R. Hudson
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Joshua W. Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
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14
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Hull SM, Lindsay CD, Brunel LG, Shiwarski DJ, Tashman JW, Roth JG, Myung D, Feinberg AW, Heilshorn SC. 3D Bioprinting using UNIversal Orthogonal Network (UNION) Bioinks. Adv Funct Mater 2021; 31:2007983. [PMID: 33613150 PMCID: PMC7888563 DOI: 10.1002/adfm.202007983] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Indexed: 05/02/2023]
Abstract
Three-dimensional (3D) bioprinting is a promising technology to produce tissue-like structures, but a lack of diversity in bioinks is a major limitation. Ideally each cell type would be printed in its own customizable bioink. To fulfill this need for a universally applicable bioink strategy, we developed a versatile, bioorthogonal bioink crosslinking mechanism that is cell compatible and works with a range of polymers. We term this family of materials UNIversal, Orthogonal Network (UNION) bioinks. As demonstration of UNION bioink versatility, gelatin, hyaluronic acid (HA), recombinant elastin-like protein (ELP), and polyethylene glycol (PEG) were each used as backbone polymers to create inks with storage moduli spanning 200 to 10,000 Pa. Because UNION bioinks are crosslinked by a common chemistry, multiple materials can be printed together to form a unified, cohesive structure. This approach is compatible with any support bath that enables diffusion of UNION crosslinkers. Both matrix-adherent human corneal mesenchymal stromal cells and non-matrix-adherent human induced pluripotent stem cell-derived neural progenitor spheroids were printed with UNION bioinks. The cells retained high viability and expressed characteristic phenotypic markers after printing. Thus, UNION bioinks are a versatile strategy to expand the toolkit of customizable materials available for 3D bioprinting.
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Affiliation(s)
- Sarah M Hull
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Christopher D Lindsay
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Lucia G Brunel
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Julien G Roth
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, CA 94305, USA
| | - David Myung
- Department of Ophthalmology, Stanford University, Stanford, CA 94305, USA
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Sarah C Heilshorn
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
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15
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Shiwarski DJ, Tashman JW, Tsamis A, Bliley JM, Blundon MA, Aranda-Michel E, Jallerat Q, Szymanski JM, McCartney BM, Feinberg AW. Fibronectin-based nanomechanical biosensors to map 3D surface strains in live cells and tissue. Nat Commun 2020; 11:5883. [PMID: 33208732 PMCID: PMC7675982 DOI: 10.1038/s41467-020-19659-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 10/19/2020] [Indexed: 01/07/2023] Open
Abstract
Mechanical forces are integral to cellular migration, differentiation and tissue morphogenesis; however, it has proved challenging to directly measure strain at high spatial resolution with minimal perturbation in living sytems. Here, we fabricate, calibrate, and test a fibronectin (FN)-based nanomechanical biosensor (NMBS) that can be applied to the surface of cells and tissues to measure the magnitude, direction, and strain dynamics from subcellular to tissue length-scales. The NMBS is a fluorescently-labeled, ultra-thin FN lattice-mesh with spatial resolution tailored by adjusting the width and spacing of the lattice from 2-100 µm. Time-lapse 3D confocal imaging of the NMBS demonstrates 2D and 3D surface strain tracking during mechanical deformation of known materials and is validated with finite element modeling. Analysis of the NMBS applied to single cells, cell monolayers, and Drosophila ovarioles highlights the NMBS's ability to dynamically track microscopic tensile and compressive strains across diverse biological systems where forces guide structure and function.
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Affiliation(s)
- Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Alkiviadis Tsamis
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Jaci M Bliley
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Malachi A Blundon
- Department of Biology, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Edgar Aranda-Michel
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Quentin Jallerat
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - John M Szymanski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Brooke M McCartney
- Department of Biology, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
- Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
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16
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Abstract
Recent advances in embedded three-dimensional (3D) bioprinting have expanded the design space for fabricating geometrically complex tissue scaffolds using hydrogels with mechanical properties comparable to native tissues and organs in the human body. The advantage of approaches such as Freeform Reversible Embedding of Suspended Hydrogels (FRESH) printing is the ability to embed soft biomaterials in a thermoreversible support bath at sizes ranging from a few millimeters to centimeters. In this study, we were able to expand this printable size range by FRESH bioprinting a full-size model of an adult human heart from patient-derived magnetic resonance imaging (MRI) data sets. We used alginate as the printing biomaterial to mimic the elastic modulus of cardiac tissue. In addition to achieving high print fidelity on a low-cost printer platform, FRESH-printed alginate proved to create mechanically tunable and suturable models. This demonstrates that large-scale 3D bioprinting of soft hydrogels is possible using FRESH and that cardiac tissue constructs can be produced with potential future applications in surgical training and planning.
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Affiliation(s)
- Eman Mirdamadi
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Joshua W Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Daniel J Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Rachelle N Palchesko
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Adam W Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States.,Department of Materials Science & Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
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17
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Boyd-Shiwarski CR, Weaver CJ, Beacham RT, Shiwarski DJ, Connolly KA, Nkashama LJ, Mutchler SM, Griffiths SE, Knoell SA, Sebastiani RS, Ray EC, Marciszyn AL, Subramanya AR. Effects of extreme potassium stress on blood pressure and renal tubular sodium transport. Am J Physiol Renal Physiol 2020; 318:F1341-F1356. [PMID: 32281415 PMCID: PMC7311711 DOI: 10.1152/ajprenal.00527.2019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
We characterized mouse blood pressure and ion transport in the setting of commonly used rodent diets that drive K+ intake to the extremes of deficiency and excess. Male 129S2/Sv mice were fed either K+-deficient, control, high-K+ basic, or high-KCl diets for 10 days. Mice maintained on a K+-deficient diet exhibited no change in blood pressure, whereas K+-loaded mice developed an ~10-mmHg blood pressure increase. Following challenge with NaCl, K+-deficient mice developed a salt-sensitive 8 mmHg increase in blood pressure, whereas blood pressure was unchanged in mice fed high-K+ diets. Notably, 10 days of K+ depletion induced diabetes insipidus and upregulation of phosphorylated NaCl cotransporter, proximal Na+ transporters, and pendrin, likely contributing to the K+-deficient NaCl sensitivity. While the anionic content with high-K+ diets had distinct effects on transporter expression along the nephron, both K+ basic and KCl diets had a similar increase in blood pressure. The blood pressure elevation on high-K+ diets correlated with increased Na+-K+-2Cl- cotransporter and γ-epithelial Na+ channel expression and increased urinary response to furosemide and amiloride. We conclude that the dietary K+ maneuvers used here did not recapitulate the inverse effects of K+ on blood pressure observed in human epidemiological studies. This may be due to the extreme degree of K+ stress, the low-Na+-to-K+ ratio, the duration of treatment, and the development of other coinciding events, such as diabetes insipidus. These factors must be taken into consideration when studying the physiological effects of dietary K+ loading and depletion.
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Affiliation(s)
- Cary R. Boyd-Shiwarski
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Claire J. Weaver
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Rebecca T. Beacham
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Daniel J. Shiwarski
- 2Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Kelly A. Connolly
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Lubika J. Nkashama
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Stephanie M. Mutchler
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Shawn E. Griffiths
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Sophia A. Knoell
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Romano S. Sebastiani
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Evan C. Ray
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Allison L. Marciszyn
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Arohan R. Subramanya
- 1Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,3Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,4Veterans Administration, Pittsburgh Healthcare System, Pittsburgh Pennsylvania
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18
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Cheng YW, Shiwarski DJ, Ball RL, Whitehead KA, Feinberg AW. Engineering Aligned Skeletal Muscle Tissue Using Decellularized Plant-Derived Scaffolds. ACS Biomater Sci Eng 2020; 6:3046-3054. [PMID: 33463300 DOI: 10.1021/acsbiomaterials.0c00058] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To achieve organization and function, engineered tissues require a scaffold that supports cell adhesion, alignment, growth, and differentiation. For skeletal muscle tissue engineering, decellularization has been an approach for fabricating 3D scaffolds that retain biological architecture. While many decellularization approaches are focused on utilizing animal muscle as the starting material, decellularized plants are a potential source of highly structured cellulose-rich scaffolds. Here, we assessed the potential for a variety of decellularized plant scaffolds to promote mouse and human muscle cell alignment and differentiation. After decellularizing a range of fruits and vegetables, we identified the green-onion scaffold to have appropriate surface topography for generating highly confluent and aligned C2C12 and human skeletal muscle cells (HSMCs). The topography of the green-onion cellulose scaffold contained a repeating pattern of grooves that are approximately 20 μm wide by 10 μm deep. The outer white section of the green onion had a microstructure that guided C2C12 cell differentiation into aligned myotubes. Quantitative analysis of C2C12 and HSMC alignment revealed an almost complete anisotropic organization compared to 2D isotropic controls. Our results demonstrate that the decellularized green onion cellulose scaffolds, particularly from the outer white bulb segment, provide a simple and low-cost substrate to engineer aligned human skeletal muscle.
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Boyd-Shiwarski CR, Shiwarski DJ, Weaver CJ, Beacham RT, Griffiths SE, Subramanya AR. WNK1 Regulates Cell Volume via Crowding‐Induced Phase Transitions. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.07012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Abstract
Mechanical characterization and tensile testing of biological samples is important when determining the material properties of a tissue; however, performing tensile testing and tissue stretching while monitoring cellular changes via fluorescence microscopy is often challenging. Additionally, commercially available cell/tissue stretchers are often expensive, hard to customize, and limited in their fluorescence imaging compatibility. We have developed a 3D printed Open source Biaxial Stretcher (OBS) to be a low-cost stage top mountable biaxial stretching system for use with live cell fluorescence microscopy in both upright and inverted microscope configurations. Our OBS takes advantage of readily available open source desktop 3D printer hardware and software to deliver a fully motorized high precision (10 ± 0.5 μm movement accuracy) low cost biaxial stretching device capable of 4.5 cm of XY travel with a touch screen control panel, and an integrated heated platform with sample bath to maintain cell and tissue viability. Further, we designed a series of tissue mounts and clamps to accommodate varying samples from synthetic materials to biological tissue. By creating a low-profile design, we can directly mount the stretcher onto a microscope stage, and through coordinated biaxial stretching we maintain a constant field of view facilitating real-time sample tracking and time-lapse fluorescence imaging.
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Affiliation(s)
- Daniel J. Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
| | - Joshua W. Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
| | - Amity F. Eaton
- Department of Medicine, Renal-Electrolyte Division, and Cell Biology, University of Pittsburgh, Pittsburgh, PA United States
| | - Gerard Apodaca
- Department of Medicine, Renal-Electrolyte Division, and Cell Biology, University of Pittsburgh, Pittsburgh, PA United States
| | - Adam W. Feinberg
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
- Department of Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA, United States
- Corresponding author.
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21
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Shiwarski DJ, Crilly SE, Dates A, Puthenveedu MA. Dual RXR motifs regulate nerve growth factor-mediated intracellular retention of the delta opioid receptor. Mol Biol Cell 2019; 30:680-690. [PMID: 30601694 PMCID: PMC6589700 DOI: 10.1091/mbc.e18-05-0292] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 12/21/2018] [Accepted: 12/27/2018] [Indexed: 12/19/2022] Open
Abstract
The delta opioid receptor (DOR), a physiologically relevant prototype for G protein-coupled receptors, is retained in intracellular compartments in neuronal cells. This retention is mediated by a nerve growth factor (NGF)-regulated checkpoint that delays the export of DOR from the trans-Golgi network. How DOR is selectively retained in the Golgi, in the midst of dynamic membrane transport and cargo export, is a fundamental unanswered question. Here we address this by investigating sequence elements on DOR that regulate DOR surface delivery, focusing on the C-terminal tail of DOR that is sufficient for NGF-mediated regulation. By systematic mutational analysis, we define conserved dual bi-arginine (RXR) motifs that are required for NGF- and phosphoinositide-regulated DOR export from intracellular compartments in neuroendocrine cells. These motifs were required to bind the coatomer protein I (COPI) complex, a vesicle coat complex that mediates primarily retrograde cargo traffic in the Golgi. Our results suggest that interactions of DOR with COPI, via atypical COPI motifs on the C-terminal tail, retain DOR in the Golgi. These interactions could provide a point of regulation of DOR export and delivery by extracellular signaling pathways.
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Affiliation(s)
- Daniel J. Shiwarski
- Department of Biological Sciences, The Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA 15213
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Stephanie E. Crilly
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109
| | - Andrew Dates
- Department of Biological Sciences, The Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Manojkumar A. Puthenveedu
- Department of Biological Sciences, The Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA 15213
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI 48109
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22
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Boyd-Shiwarski CR, Shiwarski DJ, Roy A, Namboodiri HN, Nkashama LJ, Xie J, McClain KL, Marciszyn A, Kleyman TR, Tan RJ, Stolz DB, Puthenveedu MA, Huang CL, Subramanya AR. Potassium-regulated distal tubule WNK bodies are kidney-specific WNK1 dependent. Mol Biol Cell 2017; 29:499-509. [PMID: 29237822 PMCID: PMC6014176 DOI: 10.1091/mbc.e17-08-0529] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/27/2017] [Accepted: 12/06/2017] [Indexed: 01/18/2023] Open
Abstract
WNK bodies are large punctate membraneless cytosolic signaling foci that sequester WNK serine–threonine kinases and form in renal distal tubular epithelial cells during shifts in total body potassium balance. The assembly of these structures requires KS-WNK1, a truncated isoform of the WNK1 gene that is exclusively expressed in the distal tubule. With-no-lysine (WNK) kinases coordinate volume and potassium homeostasis by regulating renal tubular electrolyte transport. In the distal convoluted tubule (DCT), potassium imbalance causes WNK signaling complexes to concentrate into large discrete foci, which we call “WNK bodies.” Although these structures have been reported previously, the mechanisms that drive their assembly remain obscure. Here, we show that kidney-specific WNK1 (KS-WNK1), a truncated kinase-defective WNK1 isoform that is highly expressed in the DCT, is critical for WNK body formation. While morphologically distinct WNK bodies were evident in the distal tubules of mice subjected to dietary potassium loading and restriction, KS-WNK1 knockout mice were deficient in these structures under identical conditions. Combining in vivo observations in kidney with reconstitution studies in cell culture, we found that WNK bodies are dynamic membraneless foci that are distinct from conventional organelles, colocalize with the ribosomal protein L22, and cluster the WNK signaling pathway. The formation of WNK bodies requires an evolutionarily conserved cysteine-rich hydrophobic motif harbored within a unique N-terminal exon of KS-WNK1. We propose that WNK bodies are not pathological aggregates, but rather are KS-WNK1–dependent microdomains of the DCT cytosol that modulate WNK signaling during physiological shifts in potassium balance.
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Affiliation(s)
- Cary R Boyd-Shiwarski
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Daniel J Shiwarski
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Ankita Roy
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Hima N Namboodiri
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Lubika J Nkashama
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Jian Xie
- Department of Internal Medicine, Division of Nephrology, University of Iowa Carver College of Medicine, Iowa City, IA 52242
| | - Kara L McClain
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Allison Marciszyn
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Thomas R Kleyman
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261.,Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Roderick J Tan
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Donna B Stolz
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | | | - Chou-Long Huang
- Department of Internal Medicine, Division of Nephrology, University of Iowa Carver College of Medicine, Iowa City, IA 52242
| | - Arohan R Subramanya
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261 .,Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261.,VA Pittsburgh Healthcare System, Pittsburgh, PA 15240
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23
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Godse NR, Khan N, Yochum ZA, Gomez-Casal R, Kemp C, Shiwarski DJ, Seethala RS, Kulich S, Seshadri M, Burns TF, Duvvuri U. TMEM16A/ANO1 Inhibits Apoptosis Via Downregulation of Bim Expression. Clin Cancer Res 2017; 23:7324-7332. [PMID: 28899969 DOI: 10.1158/1078-0432.ccr-17-1561] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/27/2017] [Accepted: 09/07/2017] [Indexed: 11/16/2022]
Abstract
Purpose: TMEM16A is a calcium-activated chloride channel that is amplified in a variety of cancers, including 30% of head and neck squamous cell carcinomas (HNSCCs), raising the possibility of an anti-apoptotic role in malignant cells. This study investigated this using a multimodal, translational investigation.Experimental Design: Combination of (i) in vitro HNSCC cell culture experiments assessing cell viability, apoptotic activation, and protein expression (ii) in vivo studies assessing similar outcomes, and (iii) molecular and staining analysis of human HNSCC samples.Results: TMEM16A expression was found to correlate with greater tumor size, increased Erk 1/2 activity, less Bim expression, and less apoptotic activity overall in human HNSCC. These findings were corroborated in subsequent in vitro and in vivo studies and expanded to include a cisplatin-resistant phenotype with TMEM16A overexpression. A cohort of 41 patients with laryngeal cancer demonstrated that cases that recurred after chemoradiation failure were associated with a greater TMEM16A overexpression rate than HNSCC that did not recur.Conclusions: Ultimately, this study implicates TMEM16A as a contributor to tumor progression by limiting apoptosis and as a potential biomarker of more aggressive disease. Clin Cancer Res; 23(23); 7324-32. ©2017 AACR.
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Affiliation(s)
- Neal R Godse
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Nayel Khan
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Zachary A Yochum
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Roberto Gomez-Casal
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Carolyn Kemp
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Daniel J Shiwarski
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.,VA Pittsburgh Health System, Pittsburgh, Pennsylvania
| | - Raja S Seethala
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Scott Kulich
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Mukund Seshadri
- Department of Head and Neck Surgery, Roswell Park Cancer Institute, Buffalo, New York
| | - Timothy F Burns
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Umamaheswar Duvvuri
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. .,Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.,VA Pittsburgh Health System, Pittsburgh, Pennsylvania
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24
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Shiwarski DJ, Darr M, Telmer CA, Bruchez MP, Puthenveedu MA. PI3K class II α regulates δ-opioid receptor export from the trans-Golgi network. Mol Biol Cell 2017; 28:2202-2219. [PMID: 28566554 PMCID: PMC5531736 DOI: 10.1091/mbc.e17-01-0030] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/26/2017] [Accepted: 05/23/2017] [Indexed: 12/20/2022] Open
Abstract
The interplay between signaling and trafficking by G protein-coupled receptors (GPCRs) has focused mainly on endocytic trafficking. Whether and how surface delivery of newly synthesized GPCRs is regulated by extracellular signals is less understood. Here we define a signaling-regulated checkpoint at the trans-Golgi network (TGN) that controls the surface delivery of the delta opioid receptor (δR). In PC12 cells, inhibition of phosphoinositide-3 kinase (PI3K) activity blocked export of newly synthesized δR from the Golgi and delivery to the cell surface, similar to treatment with nerve growth factor (NGF). Depletion of class II phosphoinositide-3 kinase α (PI3K C2A), but not inhibition of class I PI3K, blocked δR export to comparable levels and attenuated δR-mediated cAMP inhibition. NGF treatment displaced PI3K C2A from the Golgi and optogenetic recruitment of the PI3K C2A kinase domain to the TGN-induced δR export downstream of NGF. Of importance, PI3K C2A expression promotes export of endogenous δR in primary trigeminal ganglion neurons. Taken together, our results identify PI3K C2A as being required and sufficient for δR export and surface delivery in neuronal cells and suggest that it could be a key modulator of a novel Golgi export checkpoint that coordinates GPCR delivery to the surface.
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Affiliation(s)
- Daniel J Shiwarski
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213.,Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Marlena Darr
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Cheryl A Telmer
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Marcel P Bruchez
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213.,Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213.,Molecular Biosensor and Imaging Center, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Manojkumar A Puthenveedu
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213 .,Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA 15213
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25
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Weinberg ZY, Zajac AS, Phan T, Shiwarski DJ, Puthenveedu MA. Sequence-Specific Regulation of Endocytic Lifetimes Modulates Arrestin-Mediated Signaling at the µ Opioid Receptor. Mol Pharmacol 2017; 91:416-427. [PMID: 28153854 DOI: 10.1124/mol.116.106633] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 01/30/2017] [Indexed: 12/26/2022] Open
Abstract
Functional selectivity at the µ opioid receptor (µR), a prototypical G-protein-coupled receptor that is a physiologically relevant target for endogenous opioid neurotransmitters and analgesics, has been a major focus for drug discovery in the recent past. Functional selectivity is a cumulative effect of the magnitudes of individual signaling pathways, e.g., the Gαi-mediated and the arrestin-mediated pathways for µR. The present work tested the hypothesis that lifetimes of agonist-induced receptor-arrestin clusters at the cell surface control the magnitude of arrestin signaling, and therefore functional selectivity, at µR. We show that endomorphin-2 (EM2), an arrestin-biased ligand for µR, lengthens surface lifetimes of receptor-arrestin clusters significantly compared with morphine. The lengthening of lifetimes required two specific leucines on the C-terminal tail of µR. Mutation of these leucines to alanines decreased the magnitude of arrestin-mediated signaling by EM2 without affecting G-protein signaling, suggesting that lengthened endocytic lifetimes were required for arrestin-biased signaling by EM2. Lengthening surface lifetimes by pharmacologically slowing endocytosis was sufficient to increase arrestin-mediated signaling by both EM2 and the clinically relevant agonist morphine. Our findings show that distinct ligands can leverage specific sequence elements on µR to regulate receptor endocytic lifetimes and the magnitude of arrestin-mediated signaling, and implicate these sequences as important determinants of functional selectivity in the opioid system.
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Affiliation(s)
- Zara Y Weinberg
- Department of Biological Sciences, Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Amanda S Zajac
- Department of Biological Sciences, Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Tiffany Phan
- Department of Biological Sciences, Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Daniel J Shiwarski
- Department of Biological Sciences, Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Manojkumar A Puthenveedu
- Department of Biological Sciences, Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, Pennsylvania
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26
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Bowman SL, Soohoo AL, Shiwarski DJ, Schulz S, Pradhan AA, Puthenveedu MA. Cell-autonomous regulation of Mu-opioid receptor recycling by substance P. Cell Rep 2015; 10:1925-36. [PMID: 25801029 PMCID: PMC4494997 DOI: 10.1016/j.celrep.2015.02.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 10/31/2014] [Accepted: 02/18/2015] [Indexed: 10/26/2022] Open
Abstract
How neurons coordinate and reprogram multiple neurotransmitter signals is an area of broad interest. Here, we show that substance P (SP), a neuropeptide associated with inflammatory pain, reprograms opioid receptor recycling and signaling. SP, through activation of the neurokinin 1 (NK1R) receptor, increases the post-endocytic recycling of the mu-opioid receptor (MOR) in trigeminal ganglion (TG) neurons in an agonist-selective manner. SP-mediated protein kinase C (PKC) activation is both required and sufficient for increasing recycling of exogenous and endogenous MOR in TG neurons. The target of this cross-regulation is MOR itself, given that mutation of either of two PKC phosphorylation sites on MOR abolishes the SP-induced increase in recycling and resensitization. Furthermore, SP enhances the resensitization of fentanyl-induced, but not morphine-induced, antinociception in mice. Our results define a physiological pathway that cross-regulates opioid receptor recycling via direct modification of MOR and suggest a mode of homeostatic interaction between the pain and analgesic systems.
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27
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Shiwarski DJ, Shao C, Bill A, Kim J, Xiao D, Bertrand CA, Seethala RS, Sano D, Myers JN, Ha P, Grandis J, Gaither LA, Puthenveedu MA, Duvvuri U. To "grow" or "go": TMEM16A expression as a switch between tumor growth and metastasis in SCCHN. Clin Cancer Res 2014; 20:4673-88. [PMID: 24919570 DOI: 10.1158/1078-0432.ccr-14-0363] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE Tumor metastasis is the leading cause of death in patients with cancer. However, the mechanisms that underlie metastatic progression remain unclear. We examined TMEM16A (ANO1) expression as a key factor shifting tumors between growth and metastasis. EXPERIMENTAL DESIGN We evaluated 26 pairs of primary and metastatic lymph node (LN) tissue from patients with squamous cell carcinoma of the head and neck (SCCHN) for differential expression of TMEM16A. In addition, we identified mechanisms by which TMEM16A expression influences tumor cell motility via proteomic screens of cell lines and in vivo mouse studies of metastasis. RESULTS Compared with primary tumors, TMEM16A expression decreases in metastatic LNs of patients with SCCHN. Stable reduction of TMEM16A expression enhances cell motility and increases metastases while decreasing tumor proliferation in an orthotopic mouse model. Evaluation of human tumor tissues suggests an epigenetic mechanism for decreasing TMEM16A expression through promoter methylation that correlated with a transition between an epithelial and a mesenchymal phenotype. These effects of TMEM16A expression on tumor cell size and epithelial-to-mesenchymal transition (EMT) required the amino acid residue serine 970 (S970); however, mutation of S970 to alanine does not disrupt the proliferative advantages of TMEM16A overexpression. Furthermore, S970 mediates the association of TMEM16A with Radixin, an actin-scaffolding protein implicated in EMT. CONCLUSIONS Together, our results identify TMEM16A, an eight transmembrane domain Ca2+-activated Cl- channel, as a primary driver of the "Grow" or "Go" model for cancer progression, in which TMEM16A expression acts to balance tumor proliferation and metastasis via its promoter methylation.
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Affiliation(s)
- Daniel J Shiwarski
- VA Pittsburgh Health System, Pittsburgh, Pennsylvania. Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania. Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Chunbo Shao
- Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Anke Bill
- Department of Developmental and Molecular Pathways, Novartis Institute for Biomedical Research Inc., Cambridge, Massachusetts
| | - Jean Kim
- VA Pittsburgh Health System, Pittsburgh, Pennsylvania. Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Dong Xiao
- VA Pittsburgh Health System, Pittsburgh, Pennsylvania. Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Raja S Seethala
- Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Daisuke Sano
- Yokohama City University, School of Medicine, Yokohama, Japan
| | - Jeffery N Myers
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Patrick Ha
- Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jennifer Grandis
- VA Pittsburgh Health System, Pittsburgh, Pennsylvania. Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - L Alex Gaither
- Department of Developmental and Molecular Pathways, Novartis Institute for Biomedical Research Inc., Cambridge, Massachusetts
| | | | - Umamaheswar Duvvuri
- VA Pittsburgh Health System, Pittsburgh, Pennsylvania. Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania.
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28
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Duvvuri U, Shiwarski DJ, Xiao D, Bertrand C, Huang X, Edinger RS, Rock JR, Harfe BD, Henson BJ, Kunzelmann K, Schreiber R, Seethala RS, Egloff AM, Chen X, Lui VW, Grandis JR, Gollin SM. TMEM16A induces MAPK and contributes directly to tumorigenesis and cancer progression. Cancer Res 2012; 72:3270-81. [PMID: 22564524 DOI: 10.1158/0008-5472.can-12-0475-t] [Citation(s) in RCA: 220] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Frequent gene amplification of the receptor-activated calcium-dependent chloride channel TMEM16A (TAOS2 or ANO1) has been reported in several malignancies. However, its involvement in human tumorigenesis has not been previously studied. Here, we show a functional role for TMEM16A in tumor growth. We found TMEM16A overexpression in 80% of head and neck squamous cell carcinoma (SCCHN), which correlated with decreased overall survival in patients with SCCHN. TMEM16A overexpression significantly promoted anchorage-independent growth in vitro, and loss of TMEM16A resulted in inhibition of tumor growth both in vitro and in vivo. Mechanistically, TMEM16A-induced cancer cell proliferation and tumor growth were accompanied by an increase in extracellular signal-regulated kinase (ERK)1/2 activation and cyclin D1 induction. Pharmacologic inhibition of MEK/ERK and genetic inactivation of ERK1/2 (using siRNA and dominant-negative constructs) abrogated the growth effect of TMEM16A, indicating a role for mitogen-activated protein kinase (MAPK) activation in TMEM16A-mediated proliferation. In addition, a developmental small-molecule inhibitor of TMEM16A, T16A-inh01 (A01), abrogated tumor cell proliferation in vitro. Together, our findings provide a mechanistic analysis of the tumorigenic properties of TMEM16A, which represents a potentially novel therapeutic target. The development of small-molecule inhibitors against TMEM16A may be clinically relevant for treatment of human cancers, including SCCHN.
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Affiliation(s)
- Umamaheswar Duvvuri
- Department of Otolaryngology, University of Pittsburgh Medical Center, University of Pittsburgh School of Medicine and Magee-Women's Research Institute, Pittsburgh, Pennsylvania 15213, USA.
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