Yin Pun Hung, John G. Albeck, Mathew Tantama, Gary Yellen 

Slides:



Advertisements
Similar presentations
UV as an Amplifier Rather Than Inducer of NF-κB Activity
Advertisements

Jie Zheng, William N. Zagotta  Neuron 
Jason R. Chalifoux, Adam G. Carter  Neuron 
Volume 23, Issue 9, Pages (September 2015)
Vesicle Docking Is a Key Target of Local PI(4,5)P2 Metabolism in the Secretory Pathway of INS-1 Cells  Chen Ji, Fan Fan, Xuelin Lou  Cell Reports  Volume.
Volume 84, Issue 4, Pages (April 2003)
Volume 38, Issue 2, Pages (April 2010)
Phage Mu Transposition Immunity: Protein Pattern Formation along DNA by a Diffusion- Ratchet Mechanism  Yong-Woon Han, Kiyoshi Mizuuchi  Molecular Cell 
Different Metabolic Responses in α-, β-, and δ-Cells of the Islet of Langerhans Monitored by Redox Confocal Microscopy  Ivan Quesada, Mariana G. Todorova,
Volume 21, Issue 5, Pages (May 2015)
Stephanie L. Gupton, Frank B. Gertler  Developmental Cell 
Grigory S. Filonov, Vladislav V. Verkhusha  Chemistry & Biology 
Volume 45, Issue 6, Pages (March 2012)
Volume 38, Issue 2, Pages (April 2010)
Ian M. Finn, Nicholas J. Priebe, David Ferster  Neuron 
Volume 14, Issue 4, Pages (October 2011)
Volume 113, Issue 12, Pages (December 2017)
Volume 59, Issue 3, Pages (August 2015)
Biosensor reveals multiple sources for mitochondrial NAD+
John G. Albeck, Gordon B. Mills, Joan S. Brugge  Molecular Cell 
In Vivo Evidence for a Lactate Gradient from Astrocytes to Neurons
Joseph M. Johnson, William J. Betz  Biophysical Journal 
Impulse Control: Temporal Dynamics in Gene Transcription
CDK5 Serves as a Major Control Point in Neurotransmitter Release
Volume 63, Issue 5, Pages (September 2009)
Volume 46, Issue 6, Pages (June 2005)
Volume 140, Issue 5, Pages (March 2010)
Volume 135, Issue 6, Pages (December 2008)
Benoit Sorre, Aryeh Warmflash, Ali H. Brivanlou, Eric D. Siggia 
Volume 27, Issue 1, Pages (July 2007)
Volume 23, Issue 10, Pages (October 2016)
Grigory S. Filonov, Vladislav V. Verkhusha  Chemistry & Biology 
Volume 43, Issue 5, Pages (September 2011)
Michael J. Reddish, Robert Callender, R. Brian Dyer 
Organelle pH in the Arabidopsis Endomembrane System
A Super-Assembly of Whi3 Encodes Memory of Deceptive Encounters by Single Cells during Yeast Courtship  Fabrice Caudron, Yves Barral  Cell  Volume 155,
Haruko Miura, Yohei Kondo, Michiyuki Matsuda, Kazuhiro Aoki 
Johanna Sigl-Glöckner, Michael Brecht  Cell Reports 
Volume 57, Issue 4, Pages (February 2008)
Synapse Formation and mRNA Localization in Cultured Aplysia Neurons
Beena Krishnan, Lila M. Gierasch  Chemistry & Biology 
Anubhuti Goel, Dean V. Buonomano  Neuron 
Single-Molecule Analysis Reveals Differential Effect of ssDNA-Binding Proteins on DNA Translocation by XPD Helicase  Masayoshi Honda, Jeehae Park, Robert.
Georg B. Keller, Tobias Bonhoeffer, Mark Hübener  Neuron 
Volume 13, Issue 5, Pages (May 2006)
Transient Expression of WNT2 Promotes Somatic Cell Reprogramming by Inducing β- Catenin Nuclear Accumulation  Mizuki Kimura, May Nakajima-Koyama, Joonseong.
Volume 55, Issue 1, Pages (July 2014)
Real-Time Redox Measurements during Endoplasmic Reticulum Stress Reveal Interlinked Protein Folding Functions  Philip I. Merksamer, Ala Trusina, Feroz.
Giulia Varsano, Yuedi Wang, Min Wu  Cell Reports 
Volume 23, Issue 5, Pages (May 2016)
Volume 23, Issue 9, Pages (September 2015)
Glucose Sensing in L Cells: A Primary Cell Study
Volume 50, Issue 5, Pages (June 2006)
Tradeoffs and Optimality in the Evolution of Gene Regulation
Strong G-Protein-Mediated Inhibition of Sodium Channels
Volume 17, Issue 12, Pages (December 2016)
Analyzing Fission Yeast Multidrug Resistance Mechanisms to Develop a Genetically Tractable Model System for Chemical Biology  Shigehiro A. Kawashima,
Volume 23, Issue 7, Pages (July 2016)
Volume 15, Issue 12, Pages (December 2008)
Volume 11, Issue 3, Pages (April 2015)
Volume 17, Issue 7, Pages (July 2010)
A Fluorescent Reporter of AMPK Activity and Cellular Energy Stress
Katie L. Zobeck, Martin S. Buckley, Warren R. Zipfel, John T. Lis 
Anubhuti Goel, Dean V. Buonomano  Neuron 
The Kinesin-8 Kif18A Dampens Microtubule Plus-End Dynamics
Volume 5, Issue 1, Pages (January 2007)
Volume 25, Issue 2, Pages e3 (October 2018)
Volume 98, Issue 7, Pages (April 2010)
William J. Galush, Jeffrey A. Nye, Jay T. Groves  Biophysical Journal 
Yuki Hara, Christoph A. Merten  Developmental Cell 
Presentation transcript:

Imaging Cytosolic NADH-NAD+ Redox State with a Genetically Encoded Fluorescent Biosensor  Yin Pun Hung, John G. Albeck, Mathew Tantama, Gary Yellen  Cell Metabolism  Volume 14, Issue 4, Pages 545-554 (October 2011) DOI: 10.1016/j.cmet.2011.08.012 Copyright © 2011 Elsevier Inc. Terms and Conditions

Figure 1 Characterization of Purified P0, a Rex-cpFP Chimera (A) Schematic showing the sensor design, with a cpFP (PDB: 3evp) interposed between the two T-Rex subunits (blue and orange) and a change of fluorescence upon binding of NADH (black). (B) Excitation and emission spectra in the control condition (solid black), after addition of 100 μM NAD+ (dash purple) or 100 μM NAD+ and 0.2 μM NADH (solid green), normalized to the peak intensity in the control condition. For excitation spectra, emission was measured at 510 ± 5 nm; for emission spectra, excitation was at 400 ± 2.5 nm. (C) Green-to-red fluorescence ratios at the indicated [NAD+] at pH 7.2 plotted against [NADH]. (D) Fluorescence ratios at the indicated [NAD+] and pH plotted against R′. (E) Fluorescence ratios at the indicated [NAD+] and pH plotted against [NADH] × [H+] / [NAD+]. Fluorescence ratios (mean ± SEM, n = 3) were normalized to the control condition in the absence of pyridine nucleotides at pH 7.2 at 25°C. Cell Metabolism 2011 14, 545-554DOI: (10.1016/j.cmet.2011.08.012) Copyright © 2011 Elsevier Inc. Terms and Conditions

Figure 2 Characterization of Purified Peredox (A) Green-to-red fluorescence ratios at the indicated pH, plotted against R′ or R (above the plot), with 80 μM NAD+ at 25°C. (B) Fluorescence ratios at the indicated pH, temperature, and ATP:ADP ratios (low, 0.3; high, 3.6; with total adenine nucleotides of 4.6 mM), plotted against R′ or R (above the plot), with 80 μM NAD+. Fluorescence ratios (mean ± SEM, n = 3) were normalized to the control condition in the absence of pyridine nucleotides at pH 7.2. (C) Kinetics of fluorescence signal upon addition of pyruvate and LDH to Peredox pre-equilibrated with saturating NADH at 25°C or 35°C, normalized to initial and final values. Cell Metabolism 2011 14, 545-554DOI: (10.1016/j.cmet.2011.08.012) Copyright © 2011 Elsevier Inc. Terms and Conditions

Figure 3 Imaging the Cytosolic NADH-NAD+ Redox State in Various Extracellular Lactate:Pyruvate Ratios (A) (Left) Confocal green and red fluorescence images of two cultured mouse neuroblastoma Neuro-2a cells expressing Peredox supplied with 10 mM lactate, 10 mM lactate plus 0.2 mM pyruvate, or 10 mM pyruvate. Scale bar, 20 μm. (Middle) Pseudocolored pixel-by-pixel green-to-red ratio images. The slight edge effect seen is likely due to the optical z shift of 1.5 μm between the green and red confocal images. (Right) Wide-field differential interference contrast (DIC), nuclear staining, and the overlay image. (B) Time course of fluorescence ratios of four Neuro-2a cells perfused with the indicated lactate:pyruvate ratios. (C) Steady-state fluorescence responses of Neuro-2a cells plotted against extracellular lactate:pyruvate ratios, with lactate of 10 mM or 20 mM (mean ± SEM, n = 12–15 cells from two independent experiments). (D) Steady state fluorescence responses in (D) plotted against the predicted R′, by assuming the LDH reaction was at equilibrium and a pH of 7.4. Data of purified Peredox proteins were with 80 μM NAD+ and 4.6 mM total adenine nucleotides at 35°C. Line fitted with a logistic function using a Hill coefficient of 1.8. Cell Metabolism 2011 14, 545-554DOI: (10.1016/j.cmet.2011.08.012) Copyright © 2011 Elsevier Inc. Terms and Conditions

Figure 4 Cultured Mouse Neuroblastoma Neuro-2a Cells Supplied with Glucose Show a More Reduced Cytosolic NADH-NAD+ Redox State (A) Steady state fluorescence responses of Neuro-2a cells plotted against concentrations of extracellular glucose (mean ± SEM, n = 19 cells from two independent experiments). (B) Steady state fluorescence responses of Neuro-2a cells plotted against total concentrations of extracellular lactate and pyruvate, with a constant lactate:pyruvate ratio of 10 and glucose of 10 mM or 0 mM (mean ± SEM, n = 7 cells from three independent experiments). For the alternate y axis, the predicted NAD+:NADH ratio was calculated from purified protein measurements. p < 0.001 (paired t test) for all conditions in 10 mM versus 0 mM glucose. Cell Metabolism 2011 14, 545-554DOI: (10.1016/j.cmet.2011.08.012) Copyright © 2011 Elsevier Inc. Terms and Conditions

Figure 5 Primary Cultured Mouse Cortical Astrocytes and Neurons Differ in Their Cytosolic NADH-NAD+ Redox States Time course of fluorescence ratios of primary mouse cortical astrocytes or neurons expressing Peredox-NLS and perfused with solutions, as indicated (mean ± SEM, n = 4–5 cells from four independent experiments). For the alternate y axis, the predicted NAD+:NADH ratio was calculated from purified protein measurements. p < 0.01 (paired t test) for astrocytes versus neurons prior to the 10 mM lactate condition. Cell Metabolism 2011 14, 545-554DOI: (10.1016/j.cmet.2011.08.012) Copyright © 2011 Elsevier Inc. Terms and Conditions

Figure 6 Stably Expressed in Mammary Epithelial MCF-10A Cells, Peredox Reports Cytosolic NADH Decrease upon PI3K Pathway Inhibition (A) Heat maps of normalized fluorescence ratios of MCF-10A cells stably expressing Peredox-NLS plotted against time. After 38 min of baseline, cells were treated with 1 μM NVP-BEZ235 (left) or DMSO (right). As a control, 20 mM lactate, 20 mM lactate and 1 mM pyruvate, and 20 mM pyruvate and 0.4 mM iodoacetate were applied at red, blue, and black arrows, respectively. For each group, ∼700 cells from six fields in two experiments were collected. Though the dynamic range was less than the usual 2.5-fold, this was likely due to inadequate control of extracellular lactate and pyruvate concentrations, as these cells were imaged in the 24-well plate formats and solutions were changed without rinsing, as opposed to imaging in a chamber under continuous perfusion of fresh solutions. Fluorescence ratios binned in increments of 0.012. (B) Histograms of normalized fluorescence ratios after 1 hr treatment with DMSO (black) or NVP-BEZ235 (blue), binned in increments of 0.027. (C) Histograms of normalized fluorescence ratios from the indicated groups after calibration with 20 mM lactate (L), 20 mM lactate and 1 mM pyruvate (L+P), and 20 mM pyruvate and 0.4 mM iodoacetate (P+I). Cell Metabolism 2011 14, 545-554DOI: (10.1016/j.cmet.2011.08.012) Copyright © 2011 Elsevier Inc. Terms and Conditions