1
|
Mo GCH, Posner C, Rodriguez EA, Sun T, Zhang J. Author Correction: A rationally enhanced red fluorescent protein expands the utility of FRET biosensors. Nat Commun 2024; 15:771. [PMID: 38278819 PMCID: PMC10817911 DOI: 10.1038/s41467-024-45330-y] [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: 01/28/2024] Open
Affiliation(s)
- Gary C H Mo
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA
- Department of Pharmacology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Clara Posner
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA
- Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Erik A Rodriguez
- Department of Chemistry, The George Washington University, Washington, DC, 20052, USA
| | - Tengqian Sun
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA
| | - Jin Zhang
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA.
- Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA.
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92093, USA.
| |
Collapse
|
2
|
Posner C, Mehta S, Zhang J. Fluorescent biosensor imaging meets deterministic mathematical modelling: quantitative investigation of signalling compartmentalization. J Physiol 2023; 601:4227-4241. [PMID: 37747358 PMCID: PMC10764149 DOI: 10.1113/jp282696] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/14/2023] [Accepted: 09/06/2023] [Indexed: 09/26/2023] Open
Abstract
Cells execute specific responses to diverse environmental cues by encoding information in distinctly compartmentalized biochemical signalling reactions. Genetically encoded fluorescent biosensors enable the spatial and temporal monitoring of signalling events in live cells. Temporal and spatiotemporal computational models can be used to interpret biosensor experiments in complex biochemical networks and to explore hypotheses that are difficult to test experimentally. In this review, we first provide brief discussions of the experimental toolkit of fluorescent biosensors as well as computational basics with a focus on temporal and spatiotemporal deterministic models. We then describe how we used this combined approach to identify and investigate a protein kinase A (PKA) - cAMP - Ca2+ oscillatory circuit in MIN6 β cells, a mouse pancreatic β cell system. We describe the application of this combined approach to interrogate how this oscillatory circuit is differentially regulated in a nano-compartment formed at the plasma membrane by the scaffolding protein A kinase anchoring protein 79/150. We leveraged both temporal and spatiotemporal deterministic models to identify the key regulators of this oscillatory circuit, which we confirmed with further experiments. The powerful approach of combining live-cell biosensor imaging with quantitative modelling, as discussed here, should find widespread use in the investigation of spatiotemporal regulation of cell signalling.
Collapse
Affiliation(s)
- Clara Posner
- Department of Pharmacology, University of California, San Diego, CA, USA
- Shu Chien-Gene Lay Department of Bioengineering, University of California, San Diego, CA, USA
| | - Sohum Mehta
- Department of Pharmacology, University of California, San Diego, CA, USA
| | - Jin Zhang
- Department of Pharmacology, University of California, San Diego, CA, USA
- Shu Chien-Gene Lay Department of Bioengineering, University of California, San Diego, CA, USA
- Department of Chemistry and Biochemistry, University of California, San Diego, CA, USA
| |
Collapse
|
3
|
Greenwald E, Posner C, Bharath A, Lyons A, Salmerón C, Sriram K, Wiley SZ, Insel PA, Zhang J. GPCR Signaling Measurement and Drug Profiling with an Automated Live-Cell Microscopy System. ACS Sens 2023; 8:19-27. [PMID: 36602887 PMCID: PMC9994309 DOI: 10.1021/acssensors.2c01341] [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] [Indexed: 01/06/2023]
Abstract
A major limitation of time-lapse microscopy combined with fluorescent biosensors, a powerful tool for quantifying spatiotemporal dynamics of signaling in single living cells, is low-experimental throughput. To overcome this limitation, we created a highly customizable, MATLAB-based platform: flexible automated liquid-handling combined microscope (FALCOscope) that coordinates an OpenTrons liquid handler and a fluorescence microscope to automate drug treatments, fluorescence imaging, and single-cell analysis. To test the feasibility of the FALCOscope, we quantified G protein-coupled receptor (GPCR)-stimulated Protein Kinase A activity and cAMP responses to GPCR agonists and antagonists. We also characterized cAMP dynamics induced by GPR68/OGR1, a proton-sensing GPCR, in response to variable extracellular pH values. GPR68-induced cAMP responses were more transient in acidic than neutral pH values, suggesting a pH-dependence for signal attenuation. Ogerin, a GPR68 positive allosteric modulator, enhanced cAMP response most strongly at pH 7.0 and sustained cAMP response for acidic pH values, thereby demonstrating the capability of the FALCOscope to capture allosteric modulation. At a high concentration, ogerin increased cAMP signaling independent of GPR68, likely via phosphodiesterase inhibition. The FALCOscope system thus enables enhanced throughput single-cell dynamic measurements and is a versatile system for interrogating spatiotemporal regulation of signaling molecules in living cells and for drug profiling and screening.
Collapse
Affiliation(s)
- Eric Greenwald
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States
| | - Clara Posner
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Ananya Bharath
- Department of Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Anne Lyons
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Cristina Salmerón
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States
| | - Krishna Sriram
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States
| | - Shu Z Wiley
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States
| | - Paul A Insel
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States.,Department of Medicine, University of California, San Diego, La Jolla, California 92093 United States
| | - Jin Zhang
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States.,Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, United States.,Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| |
Collapse
|
4
|
Zhou J, Wu Q, Zhao J, Posner C, Lei M, Chen G, Zhang J, Liu Z. Fourier Optical Spin Splitting Microscopy. Phys Rev Lett 2022; 129:020801. [PMID: 35867452 PMCID: PMC10035159 DOI: 10.1103/physrevlett.129.020801] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
In this Letter, we propose a new quantitative phase imaging methodology named Fourier optical spin splitting microscopy (FOSSM). FOSSM relies on a metasurface located at the Fourier plane of a polarized microscope to separate the object image into two replicas of opposite circularly polarized states. The bias retardation between the two replicas is tuned by translating the metasurface or rotating the analyzer. Combined with a polarized camera, FOSSM can easily achieve single-shot quantitative phase gradient imaging, which greatly reduces the complexity of current phase microscope setups, paving the way for the next generation high-speed real-time multifunctional microscopy.
Collapse
Affiliation(s)
- Junxiao Zhou
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Qianyi Wu
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Junxiang Zhao
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Clara Posner
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States
| | - Ming Lei
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Guanghao Chen
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jin Zhang
- Department of Pharmacology, University of California, San Diego, La Jolla, California 92093, United States
| | - Zhaowei Liu
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| |
Collapse
|
5
|
Posner C, Greenwald E, Bharath A, Lyons A, Salmerón C, Smitham J, Insel PA, Zhang J. GPCR signaling measurement and drug profiling with an automated live‐cell microscopy system. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r2196] [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)
- Clara Posner
- BioengineeringUniversity of CaliforniaSan DiegoCA
| | | | | | - Anne Lyons
- BioengineeringUniversity of CaliforniaSan DiegoCA
| | | | | | | | - Jin Zhang
- PharmacologyUniversity of CaliforniaSan DiegoCA
| |
Collapse
|
6
|
Lee YU, Posner C, Nie Z, Zhao J, Li S, Bopp SE, Wisna GBM, Ha J, Song C, Zhang J, Yang S, Zhang X, Liu Z. Organic Hyperbolic Material Assisted Illumination Nanoscopy. Adv Sci (Weinh) 2021; 8:e2102230. [PMID: 34436815 PMCID: PMC8596137 DOI: 10.1002/advs.202102230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/09/2021] [Indexed: 06/07/2023]
Abstract
Resolution capability of the linear structured illumination microscopy (SIM) plays a key role in its applications in physics, medicine, biology, and life science. Many advanced methodologies have been developed to extend the resolution of structured illumination by using subdiffraction-limited optical excitation patterns. However, obtaining SIM images with a resolution beyond 40 nm at visible frequency remains as an insurmountable obstacle due to the intrinsic limitation of spatial frequency bandwidth of the involved materials and the complexity of the illumination system. Here, a low-loss natural organic hyperbolic material (OHM) that can support record high spatial-frequency modes beyond 50k0 , i.e., effective refractive index larger than 50, at visible frequencies is reported. OHM-based speckle structured illumination microscopy demonstrates imaging resolution at 30 nm scales with enhanced fluorophore photostability, biocompatibility, easy to use and low cost. This study will open up a new route in super-resolution microscopy by utilizing OHM films for various applications including bioimaging and sensing.
Collapse
Affiliation(s)
- Yeon Ui Lee
- Department of Electrical and Computer EngineeringUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
- Department of PhysicsChungbuk National UniversityCheongjuChungbuk28644South Korea
| | - Clara Posner
- Department of PharmacologyUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
| | - Zhaoyu Nie
- Department of Mechanical EngineeringUniversity of CaliforniaBerkeleyCA94720USA
| | - Junxiang Zhao
- Department of Electrical and Computer EngineeringUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
| | - Shilong Li
- Department of Electrical and Computer EngineeringUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
| | - Steven Edward Bopp
- Materials Science and EngineeringUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
| | | | - Jeongho Ha
- Department of Electrical and Computer EngineeringUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
| | - Chengyu Song
- National Center for Electron MicroscopyThe Molecular FoundryOne Cyclotron RoadBerkeleyCA94720USA
| | - Jin Zhang
- Department of PharmacologyUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
| | - Sui Yang
- Materials Science and Engineering, School for Engineering of Matter Transport and EnergyArizona State UniversityTempeAZ85287USA
| | - Xiang Zhang
- Department of Mechanical EngineeringUniversity of CaliforniaBerkeleyCA94720USA
| | - Zhaowei Liu
- Department of Electrical and Computer EngineeringUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
- Materials Science and EngineeringUniversity of CaliforniaSan Diego, 9500 Gilman DriveLa JollaCA92093USA
| |
Collapse
|
7
|
Lee YU, Zhao J, Ma Q, Khorashad LK, Posner C, Li G, Wisna GBM, Burns Z, Zhang J, Liu Z. Metamaterial assisted illumination nanoscopy via random super-resolution speckles. Nat Commun 2021; 12:1559. [PMID: 33692354 PMCID: PMC7946936 DOI: 10.1038/s41467-021-21835-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 08/19/2020] [Accepted: 01/22/2021] [Indexed: 11/09/2022] Open
Abstract
Structured illumination microscopy (SIM) is one of the most powerful and versatile optical super-resolution techniques. Compared with other super-resolution methods, SIM has shown its unique advantages in wide-field imaging with high temporal resolution and low photon damage. However, traditional SIM only has about 2 times spatial resolution improvement compared to the diffraction limit. In this work, we propose and experimentally demonstrate an easily-implemented, low-cost method to extend the resolution of SIM, named speckle metamaterial-assisted illumination nanoscopy (speckle-MAIN). A metamaterial structure is introduced to generate speckle-like sub-diffraction-limit illumination patterns in the near field with improved spatial frequency. Such patterns, similar to traditional SIM, are then used to excite objects on top of the surface. We demonstrate that speckle-MAIN can bring the resolution down to 40 nm and beyond. Speckle-MAIN represents a new route for super-resolution, which may lead to important applications in bio-imaging and surface characterization. Structured illumination microscopy is usually limited to 2 times spatial resolution improvement over the diffraction limit. Here, the authors introduce a metamaterial structure to generate speckle-like sub-diffraction limit illumination patterns in the near field, and achieve a 7-fold resolution improvement down to 40 nm.
Collapse
Affiliation(s)
- Yeon Ui Lee
- Department of Electrical and Computer Engineering, University of California, San Diego, CA, 92093, USA
| | - Junxiang Zhao
- Department of Electrical and Computer Engineering, University of California, San Diego, CA, 92093, USA
| | - Qian Ma
- Department of Electrical and Computer Engineering, University of California, San Diego, CA, 92093, USA
| | | | - Clara Posner
- Department of Pharmacology, University of California San Diego, San Diego, CA, 92093, USA
| | - Guangru Li
- Department of Electrical and Computer Engineering, University of California, San Diego, CA, 92093, USA
| | - G Bimananda M Wisna
- Material Science and Engineering Program, University of California, San Diego, CA, 92093, USA
| | - Zachary Burns
- Department of Electrical and Computer Engineering, University of California, San Diego, CA, 92093, USA
| | - Jin Zhang
- Department of Pharmacology, University of California San Diego, San Diego, CA, 92093, USA
| | - Zhaowei Liu
- Department of Electrical and Computer Engineering, University of California, San Diego, CA, 92093, USA. .,Material Science and Engineering Program, University of California, San Diego, CA, 92093, USA. .,Center for Memory and Recording Research, University of California, San Diego, CA, 92093, USA.
| |
Collapse
|
8
|
Lee YU, Li S, Bopp SE, Zhao J, Nie Z, Posner C, Yang S, Zhang X, Zhang J, Liu Z. Unprecedented Fluorophore Photostability Enabled by Low-Loss Organic Hyperbolic Materials. Adv Mater 2021; 33:e2006496. [PMID: 33506542 PMCID: PMC8783542 DOI: 10.1002/adma.202006496] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/30/2020] [Indexed: 05/04/2023]
Abstract
The dynamics of photons in fluorescent molecules plays a key role in fluorescence imaging, optical sensing, organic photovoltaics, and displays. Photobleaching is an irreversible photodegradation process of fluorophores, representing a fundamental limitation in relevant optical applications. Chemical reagents are used to suppress the photobleaching rate but with exceptionally high specificity for each type of fluorophore. Here, using organic hyperbolic materials (OHMs), an optical platform to achieve unprecedented fluorophore photostability without any chemical specificity is demonstrated. A more than 500-fold lengthening of the photobleaching lifetime and a 230-fold increase in the total emitted photon counts are observed simultaneously. These exceptional improvements solely come from the low-loss hyperbolic dispersion of OHM films and the large resultant Purcell effect in the visible spectral range. The demonstrated OHM platform may open up a new paradigm in nanophotonics and organic plasmonics for super-resolution imaging and the engineering of light-matter interactions at the nanoscale.
Collapse
Affiliation(s)
- Yeon Ui Lee
- Department of Electrical and Computer Engineering, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Shilong Li
- Department of Electrical and Computer Engineering, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Steven Edward Bopp
- Materials Science and Engineering, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Junxiang Zhao
- Department of Electrical and Computer Engineering, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Zhaoyu Nie
- Department of Mechanical Engineering, University of California, Berkele, Berkeley, CA, 94720, USA
| | - Clara Posner
- Department of Pharmacology, University of California, San Dieg, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Sui Yang
- Department of Mechanical Engineering, University of California, Berkele, Berkeley, CA, 94720, USA
| | - Xiang Zhang
- Department of Mechanical Engineering, University of California, Berkele, Berkeley, CA, 94720, USA
| | - Jin Zhang
- Department of Pharmacology, University of California, San Dieg, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Zhaowei Liu
- Department of Electrical and Computer Engineering, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
- Materials Science and Engineering, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| |
Collapse
|
9
|
Abstract
Determining the axial position of an emitter with nanoscale precision is critical to a fundamental imaging methodology. While there are many advanced optical techniques being applied to high-resolution imaging, high-axial-resolution topography imaging of living cells is particularly challenging. Here, we present an application of metamaterial-assisted photobleaching microscopy (MAPM) with high-axial resolution to characterize morphological properties of living cells. Quantitative imaging of changes in the morphology of live cells is obtained by topographic and statistical analysis. The time-lapse topography image using the metamaterial-induced photostability provides information about growth factor induced changes in the cell morphology with high-axial resolution.
Collapse
Affiliation(s)
- Yeon Ui Lee
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Clara Posner
- Department of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Junxiang Zhao
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jin Zhang
- Department of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Zhaowei Liu
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Materials Science and Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Corresponding Author Zhaowei Liu − Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA; Material Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA;
| |
Collapse
|
10
|
Mo GCH, Posner C, Rodriguez EA, Sun T, Zhang J. A rationally enhanced red fluorescent protein expands the utility of FRET biosensors. Nat Commun 2020; 11:1848. [PMID: 32296061 PMCID: PMC7160135 DOI: 10.1038/s41467-020-15687-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [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: 07/23/2019] [Accepted: 03/20/2020] [Indexed: 11/30/2022] Open
Abstract
Genetically encoded Förster Resonance Energy Transfer (FRET)-based biosensors are powerful tools to illuminate spatiotemporal regulation of cell signaling in living cells, but the utility of the red spectrum for biosensing was limited due to a lack of bright and stable red fluorescent proteins. Here, we rationally improve the photophysical characteristics of the coral-derived fluorescent protein TagRFP-T. We show that a new single-residue mutant, super-TagRFP (stagRFP) has nearly twice the molecular brightness of TagRFP-T and negligible photoactivation. stagRFP facilitates significant improvements on multiple green-red biosensors as a FRET acceptor and is an efficient FRET donor that supports red/far-red FRET biosensing. Capitalizing on the ability of stagRFP to couple with multiple FRET partners, we develop a novel multiplex method to examine the confluence of signaling activities from three kinases simultaneously in single living cells, providing evidence for a role of Src family kinases in regulating growth factor induced Akt and ERK activities.
Collapse
Affiliation(s)
- Gary C H Mo
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA
- Department of Pharmacology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Clara Posner
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA
- Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Erik A Rodriguez
- Department of Chemistry, The George Washington University, Washington, DC, 20052, USA
| | - Tengqian Sun
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA
| | - Jin Zhang
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA.
- Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA.
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92093, USA.
| |
Collapse
|
11
|
Sun T, Huang Z, Zhang H, Posner C, Jia G, Ramalingam TR, Xu M, Brightbill H, Egen JG, Dey A, Arron JR. TAZ is required for lung alveolar epithelial cell differentiation after injury. JCI Insight 2019; 5:128674. [PMID: 31211697 DOI: 10.1172/jci.insight.128674] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [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
The lung is a relatively quiescent organ during homeostasis, but has a remarkable capacity for repair after injury. Alveolar epithelial type I cells (AEC1s) line airspaces and mediate gas exchange. After injury, they are regenerated by differentiation from their progenitors - alveolar epithelial type II cells (AEC2s) - which also secrete surfactant to maintain surface tension and alveolar patency. While recent studies showed that the maintenance of AEC2 stemness is Wnt dependent, the molecular mechanisms underlying AEC2-AEC1 differentiation in adult lung repair are still incompletely understood. Here we show that WWTR1 (TAZ) plays a crucial role in AEC differentiation. Using an in vitro organoid culture system, we found that tankyrase inhibition can efficiently block AEC2-AEC1 differentiation, and this effect was due to the inhibition of TAZ. In a bleomycin induced lung injury model, conditional deletion of TAZ in AEC2s dramatically reduced AEC1 regeneration during recovery, leading to exacerbated alveolar lesions and fibrosis. In patients with idiopathic pulmonary fibrosis (IPF), decreased blood levels of RAGE, a biomarker of AEC1 health, were associated with more rapid disease progression. Our findings implicate TAZ as a critical factor involved in AEC2 to AEC1 differentiation, and hence the maintenance of alveolar integrity after injury.
Collapse
Affiliation(s)
| | | | - Hua Zhang
- Department of Translational Immunology
| | | | | | | | - Min Xu
- Department of Translational Immunology
| | | | | | - Anwesha Dey
- Department of Oncology, Genentech, 1 DNA Way, South San Francisco, California, USA
| | | |
Collapse
|
12
|
Affiliation(s)
- C Posner
- Department of Diabetes and Metabolism
| | - M Owen
- Department of Diabetes and Metabolism
| | - N Melhem
- Department of Diabetes and Metabolism
| | | | - D Low
- Department of Interventional Radiology
| | - I Renfrew
- Department of Interventional Radiology
| | - P MacCallum
- Department of Haematology, The Royal London Hospital, London
| | | |
Collapse
|
13
|
Lu ZL, Tse HCH, Dosher BA, Lesmes LA, Posner C, Chu W. Intra- and cross-modal cuing of visual spatial attention: The hyper-effective simultaneous auditory peripheral cues. J Vis 2010. [DOI: 10.1167/3.9.863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
14
|
Posner C. XII. Zur Frage der Blasensyphilis. Dermatology 2009. [DOI: 10.1159/000248152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
15
|
|
16
|
|
17
|
Yamamoto N, Magidson O, Posner C, Mendez AM, Zubiate P, Kay JH. Probable salmonella endocarditis treated with prosthetic valve replacement: a case report. Surgery 1974; 76:678-81. [PMID: 4606936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
18
|
Posner C. Zur Beurteilung der Keimdrüsenpräparate. Gynecol Obstet Invest 1927. [DOI: 10.1159/000302512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
19
|
Petersen, Weil, Heubner W, Starkenstein, Oppenheimer, Starkenstein, Christeller, Frischen, Herzfeld, Kleinschmidt, Deusch, Simon WV, Eckstein, Deusch, Magnus-Alsleben, Peiper, Peiper, Becker, Strasburger I, Fischer AW, Schlesinger, Deusch, Eisner-Behrend, Hirschfeld, Hirschfeld H, Christeller, Staub, Griesbach, Sperling, Posner C, Rosenberg M, Schübel, Rosenberg M, Eisner, Reiter, Sperling, Dietrich, Jonas, Schrader. Einzelreferate und Buchbesprechungen. J Mol Med (Berl) 1924. [DOI: 10.1007/bf01722742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
20
|
Posner C. Konstitutionsfragen in der Urologie. J Mol Med (Berl) 1924. [DOI: 10.1007/bf01747383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
21
|
|
22
|
Posner C. Bemerkungen zu der Arbeit von A. Kakowski „Zur Methodik der Zählung organischer Harnelemente” in No. 51 (1910). Dtsch Med Wochenschr 1911. [DOI: 10.1055/s-0028-1130417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
23
|
Posner C. Ueber traumatischen Morbus Brightii 1). Dtsch Med Wochenschr 1906. [DOI: 10.1055/s-0028-1141926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
24
|
Posner C. Erwiderung auf vorstehende Bemerkungen. Dtsch Med Wochenschr 1905. [DOI: 10.1055/s-0029-1188176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
25
|
Posner C. 2. Ueber Harntrübung 1). Dtsch Med Wochenschr 1897. [DOI: 10.1055/s-0029-1205182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
26
|
Virchow R, Posner C. Zwölfter Internationaler medicinischer Congress in Moskau. Dtsch Med Wochenschr 1896. [DOI: 10.1055/s-0029-1204589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
27
|
|
28
|
Ehrenhaus J, Posner C. Initiale Blasenlähmung bei acuter Myelitis im Kindesalter 1). Dtsch Med Wochenschr 1891. [DOI: 10.1055/s-0029-1206863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
29
|
Posner C. Ein Fall von intrapericardialer Zerreissung der Aorta 1). Dtsch Med Wochenschr 1889. [DOI: 10.1055/s-0029-1198509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
30
|
Posner C. Ueber Litholyse 5). Dtsch Med Wochenschr 1888. [DOI: 10.1055/s-0029-1207698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
31
|
|