Molecular Therapy - Nucleic Acids

Slides:



Advertisements
Similar presentations
Fig. 2. The expression of pKr-2 in the substantia nigra (SN) of patients with Parkinson's disease (PD). (A, B) Western blot analysis for pKr-1-2 and pKr-2,
Advertisements

Activation of Src Family Kinases in Spinal Microglia Contributes to Formalin-Induced Persistent Pain State Through p38 Pathway  Yong-Hui Tan, Kai Li,
Molecular Therapy - Nucleic Acids
Volume 22, Issue 12, Pages (December 2014)
Molecular Therapy - Nucleic Acids
Low back pain and disc degeneration are decreased following chronic toll-like receptor 4 inhibition in a mouse model  Emerson Krock, Magali Millecamps,
LRRK2 Antisense Oligonucleotides Ameliorate α-Synuclein Inclusion Formation in a Parkinson’s Disease Mouse Model  Hien Tran Zhao, Neena John, Vedad Delic,
Antisense Oligonucleotide-Mediated Removal of the Polyglutamine Repeat in Spinocerebellar Ataxia Type 3 Mice  Lodewijk J.A. Toonen, Frank Rigo, Haico.
A MicroRNA124 Target Sequence Restores Astrocyte Specificity of gfaABC1D-Driven Transgene Expression in AAV-Mediated Gene Transfer  Grit Taschenberger,
Volume 7, Issue 3, Pages (May 2014)
Molecular Therapy - Nucleic Acids
Microglia-specific targeting by novel capsid-modified AAV6 vectors
Analysis of brain and spinal cord of treated Gaa−/− mice and controls
Molecular Therapy - Methods & Clinical Development
Volume 24, Issue 10, Pages e5 (September 2018)
Gapmer Antisense Oligonucleotides Suppress the Mutant Allele of COL6A3 and Restore Functional Protein in Ullrich Muscular Dystrophy  Elena Marrosu, Pierpaolo.
Molecular Therapy - Methods & Clinical Development
Volume 25, Issue 6, Pages (June 2017)
Activation of the Innate Signaling Molecule MAVS by Bunyavirus Infection Upregulates the Adaptor Protein SARM1, Leading to Neuronal Death  Piyali Mukherjee,
Volume 17, Issue 12, Pages (December 2009)
Tyrosinase-Based Reporter Gene for Photoacoustic Imaging of MicroRNA-9 Regulated by DNA Methylation in Living Subjects  Haifeng Zheng, Lin Zhou, Yaru.
Volume 74, Issue 6, Pages (June 2012)
Molecular Therapy - Nucleic Acids
ApoE4 Accelerates Early Seeding of Amyloid Pathology
Volume 18, Issue 9, Pages (September 2010)
Volume 24, Issue 5, Pages (May 2016)
Volume 23, Issue 5, Pages (May 2015)
Selection and Identification of Skeletal-Muscle-Targeted RNA Aptamers
Minimal Purkinje Cell-Specific PCP2/L7 Promoter Virally Available for Rodents and Non- human Primates  Keisuke Nitta, Yasunori Matsuzaki, Ayumu Konno,
Molecular Therapy - Nucleic Acids
Jialei Yang, Xiufen Zhang, Xiangjie Chen, Lei Wang, Guodong Yang 
Ribosomal Protein S3 Gene Silencing Protects Against Cigarette Smoke-Induced Acute Lung Injury  Jinrui Dong, Wupeng Liao, Hong Yong Peh, W.S. Daniel Tan,
Molecular Therapy - Methods & Clinical Development
Molecular Therapy - Methods & Clinical Development
Codon-Optimized P1A-Encoding DNA Vaccine: Toward a Therapeutic Vaccination against P815 Mastocytoma  Alessandra Lopes, Kevin Vanvarenberg, Véronique Préat,
Volume 16, Issue 6, Pages (August 2016)
Molecular Therapy - Nucleic Acids
Volume 21, Issue 1, Pages (January 2013)
Spatially and Temporally Regulated NRF2 Gene Therapy Using Mcp-1 Promoter in Retinal Ganglion Cell Injury  Kosuke Fujita, Koji M. Nishiguchi, Yukihiro.
Volume 26, Issue 3, Pages (March 2018)
Molecular Therapy - Methods & Clinical Development
Volume 25, Issue 10, Pages (October 2017)
Molecular Therapy - Nucleic Acids
Volume 25, Issue 1, Pages (January 2017)
Volume 16, Issue 5, Pages (August 2016)
Kentaro Abe, Masatoshi Takeichi  Neuron 
Shrimp miR-34 from Shrimp Stress Response to Virus Infection Suppresses Tumorigenesis of Breast Cancer  Yalei Cui, Xiaoyuan Yang, Xiaobo Zhang  Molecular.
Xuepei Lei, Jianwei Jiao  Stem Cell Reports 
Volume 17, Issue 12, Pages (December 2010)
Increased Expression of Laminin Subunit Alpha 1 Chain by dCas9-VP160
Activin Signals through SMAD2/3 to Increase Photoreceptor Precursor Yield during Embryonic Stem Cell Differentiation  Amy Q. Lu, Evgenya Y. Popova, Colin.
Volume 17, Issue 2, Pages (October 2016)
Rational Design of Therapeutic siRNAs: Minimizing Off-targeting Potential to Improve the Safety of RNAi Therapy for Huntington's Disease  Ryan L Boudreau,
Volume 26, Issue 6, Pages (June 2018)
Volume 90, Issue 3, Pages (May 2016)
Molecular Therapy - Nucleic Acids
Volume 127, Issue 4, Pages (November 2006)
Molecular Therapy - Nucleic Acids
Arisa Hirano, Daniel Braas, Ying-Hui Fu, Louis J. Ptáček  Cell Reports 
Volume 19, Issue 12, Pages (December 2011)
Volume 26, Issue 6, Pages (June 2018)
Molecular Therapy - Nucleic Acids
Volume 24, Issue 4, Pages (July 2018)
Gemcitabine-Incorporated G-Quadruplex Aptamer for Targeted Drug Delivery into Pancreas Cancer  Jun Young Park, Ye Lim Cho, Ju Ri Chae, Sung Hwan Moon,
Yonghong Chen, Shujuan Zheng, Luis Tecedor, Beverly L. Davidson 
Chimeric Antisense Oligonucleotide Conjugated to α-Tocopherol
Arati Sridharan, Chetan Patel, Jit Muthuswamy 
Volume 27, Issue 9, Pages (September 2019)
Molecular Therapy - Methods & Clinical Development
Aminoglycoside Enhances the Delivery of Antisense Morpholino Oligonucleotides In Vitro and in mdx Mice  Mingxing Wang, Bo Wu, Sapana N. Shah, Peijuan.
Presentation transcript:

Molecular Therapy - Nucleic Acids Evaluation of Antisense Oligonucleotides Targeting ATXN3 in SCA3 Mouse Models  Lauren R. Moore, Gautam Rajpal, Ian T. Dillingham, Maya Qutob, Kate G. Blumenstein, Danielle Gattis, Gene Hung, Holly B. Kordasiewicz, Henry L. Paulson, Hayley S. McLoughlin  Molecular Therapy - Nucleic Acids  Volume 7, Pages 200-210 (June 2017) DOI: 10.1016/j.omtn.2017.04.005 Copyright © 2017 The Author(s) Terms and Conditions

Figure 1 Identification of Human ATXN3 Antisense Oligonucleotides (A) Screen of ASOs complementary to human ATXN3 in HEPG2 cells. 2 μM ASO was electroporated into HEPG2 cells; 24 hr post-treatment, ATXN3 mRNA levels were quantified by qPCR and normalized to total RNA levels. Data expressed as the percent of untransfected control cells. ASOs listed in order of relative binding site on ATXN3 transcript (5′ to 3′). Five ASOs characterized further are noted in black. (B) Dose response of top five ASOs in HEPG2 cells. IC50s calculated from four-point non-linear fit dose-response curve. (C) Schematic of anti-ATXN3 ASO target sites on the human ATXN3 transcript. (D) Anti-ATXN3 ASOs and the non-specific ASO-Ctrl nucleotide sequence possess a 5-8-5 MOE gapmer design in which an 8-mer block of unmodified deoxynucleotides is flanked by 5-mer blocks of 2′-O-methoxyethyl (MOE)-modified ribonucleotides indicated in bold. (E) Total ATXN3 transcript levels in SCA3 patient fibroblasts 48 hr after transfection with anti-ATXN3 ASOs (4 μM), ASO-Ctrl, or vehicle. Data (mean ± SEM) are reported relative to fibroblasts treated with vehicle alone (n = 6 per group). One-way ANOVA statistical analysis performed with the post hoc Tukey test (****p < 0.0001). (F) Immunoblotting and quantification of expanded (Q71) and wild-type (Q23) ATXN3 protein in SCA3 patient fibroblasts 72 hr after transfection with anti-ATXN3 ASOs, ASO-Ctrl, or vehicle. Data (mean ± SEM) are reported relative to fibroblasts treated with vehicle (n = 6 per group). One-way ANOVA performed with the post hoc Tukey test (****p < 0.0001). Molecular Therapy - Nucleic Acids 2017 7, 200-210DOI: (10.1016/j.omtn.2017.04.005) Copyright © 2017 The Author(s) Terms and Conditions

Figure 2 In Vivo Suppression of Mutant ATXN3 by Anti-ATXN3 ASOs in Q84 Mice, a YAC Transgenic Mouse Model of SCA3 (A) Schematic of anti-ATXN3 ASO trial design. Sex-matched hemizygous Q84 mice received a single i.c.v. bolus injection of 500 μg ASO or vehicle into the right lateral ventricle (rlv) at 8 weeks of age. Brains were harvested and dissected 4 weeks later for RNA, protein, and immunohistochemical analysis. (B) Quantification of endogenous Atxn3 (endAtxn3) and mutant ATXN3 (mutATXN3) transcripts in the diencephalon of vehicle- (Veh-Q84 and Veh-WT), ASO-Ctrl-, and anti-ATXN3 ASO-treated mice. (C) Representative western blots of mutant ATXN3 (mutATXN3) and endogenous ATXN3 (endATXN3) protein expression in major brain regions of treated mice. (D) Quantification of mutATXN3 protein expression in major brain regions of treated mice. (E and F) Representative western blot (E) and quantification of high molecular weight (HMW) ATXN3 species in the diencephalon of treated mice (F). (G) Quantification of endATXN3 protein expression in the diencephalon of treated mice. Data (mean ± SEM) are reported relative to mice treated with vehicle (n = 6 per group). One-way ANOVA performed with the post hoc Dunnett test (*p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001). WT, wild type. Molecular Therapy - Nucleic Acids 2017 7, 200-210DOI: (10.1016/j.omtn.2017.04.005) Copyright © 2017 The Author(s) Terms and Conditions

Figure 3 Anti-ATXN3 ASOs Distribute Widely throughout the CNS and Suppress ATXN3 Protein Expression in Q84 Mice (A) Representative immunofluorescence images of ASO (green) distributed throughout key SCA3-affected brain regions in Q84 hemizygous mice 4 weeks after injection. (B and C) Representative immunofluorescence images of ASO-mediated (green) suppression of ATXN3 (red) in deep cerebellar nuclei (DCN) (B) and pontine nuclei (C) of Q84 hemizygous mice 4 weeks post-treatment. Scale bars represent 200 μm in (A) and 50 μm in (B) and (C). Molecular Therapy - Nucleic Acids 2017 7, 200-210DOI: (10.1016/j.omtn.2017.04.005) Copyright © 2017 The Author(s) Terms and Conditions

Figure 4 ASOs Significantly Suppress ATXN3 Accumulation within Neuronal Nuclei (A) Representative immunofluorescence images of ATXN3 (red) reduction within neuronal nuclei (NeuN, green; DAPI, blue) in the deep cerebellar nuclei (DCN) of Q84 hemizygous mice, 4 weeks post-treatment. Scale bar represents 25 μm. (B and C) Quantification of total corrected neuronal nuclear ATXN3 fluorescence in the DCN (B) and pontine nuclei (C). Data (mean ± SEM) are reported relative to Q84 vehicle-treated mice (n = 3 per group). One-way ANOVA performed with the post hoc Tukey test (*p < 0.05; ***p < 0.001; ****p < 0.0001). Molecular Therapy - Nucleic Acids 2017 7, 200-210DOI: (10.1016/j.omtn.2017.04.005) Copyright © 2017 The Author(s) Terms and Conditions

Figure 5 ASOs Result in Limited Immunoreactive Changes in Q84 Mice (A and B) Transcript levels of the astrocytic marker Gfap (A) and microglial marker Iba1 (B) in the left diencephalon of vehicle and ASO-treated mice 4 weeks after injection. Means ± SEM are reported relative to Q84 vehicle-treated mice (n = 6 per group). One-way ANOVA statistical analysis performed with the post hoc Tukey test (*p < 0.05). (C–E) Representative GFAP (green) and IBA1 (red) immunofluorescence images of the deep cerebellar nuclei (DCN) (C), cerebral cortex (D), and body of the pons (E). Scale bars represent 100 μm in (C) and (D) and 50 μm in (E). Molecular Therapy - Nucleic Acids 2017 7, 200-210DOI: (10.1016/j.omtn.2017.04.005) Copyright © 2017 The Author(s) Terms and Conditions

Figure 6 ASOs Do Not Reduce Mutant ATXN3 Expression in a Second Model, the Q135 cDNA Transgenic Mouse, Despite Effective Delivery (A) Schematic of anti-ATXN3 ASO target sites on the CMV MJD-Q135 ATXN3 cDNA transcript. (B) Mutant ATXN3 (mutATXN3) and endogenous Atxn3 (endAtxn3) transcript levels in the diencephalon of Q135 mice 4 weeks after injection (n = 6 per group). Data shown are mean ± SEM relative to Q135 vehicle-treated mice (n = 6 per group). One-way ANOVA statistical analysis performed with the post hoc Dunnett test (∗∗p < 0.01; ∗∗∗∗p < 0.0001). (C) Western blotting and quantification of mutant human ATXN3 and endogenous murine ATXN3 expression in Q135 diencephalon 4 weeks after injection. (D and E) Representative ATXN3 (red) and ASO (green) immunofluorescence images of the deep cerebellar nuclei (DCN) (D) and pontine nuclei (E). Scale bars represent 50 μm. Molecular Therapy - Nucleic Acids 2017 7, 200-210DOI: (10.1016/j.omtn.2017.04.005) Copyright © 2017 The Author(s) Terms and Conditions