And Stage-Specific Expression of Otx2 Is Regulated by Multiple Transcription Factors and Cis-Regulatory Modules in the Retina Candace S
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Correct Setup of the Substantia Nigra Requires Reelin-Mediated Fast, Laterally- Directed Migration of Dopaminergic Neurons
RESEARCH ARTICLE Correct setup of the substantia nigra requires Reelin-mediated fast, laterally- directed migration of dopaminergic neurons Ankita Ravi Vaswani1, Beatrice Weykopf2†, Cathleen Hagemann1, Hans-Ulrich Fried3, Oliver Bru¨ stle2, Sandra Blaess1* 1Neurodevelopmental Genetics, Institute of Reconstructive Neurobiology, University of Bonn School of Medicine & University Hospital Bonn, Bonn, Germany; 2Institute of Reconstructive Neurobiology, University of Bonn School of Medicine & University Hospital Bonn, Bonn, Germany; 3Light Microscope Facility, German Center for Neurodegenerative Diseases, Bonn, Germany Abstract Midbrain dopaminergic (mDA) neurons migrate to form the laterally-located substantia nigra pars compacta (SN) and medially-located ventral tegmental area (VTA), but little is known about the underlying cellular and molecular processes. Here we visualize the dynamic cell morphologies of tangentially migrating SN-mDA neurons in 3D and identify two distinct migration modes. Slow migration is the default mode in SN-mDA neurons, while fast, laterally-directed *For correspondence: migration occurs infrequently and is strongly associated with bipolar cell morphology. Tangential [email protected] migration of SN-mDA neurons is altered in absence of Reelin signaling, but it is unclear whether Reelin acts directly on migrating SN-mDA neurons and how it affects their cell morphology and † Present address: Precision migratory behavior. By specifically inactivating Reelin signaling in mDA neurons we demonstrate its Neurology Program & Advanced direct role in SN-mDA tangential migration. Reelin promotes laterally-biased movements in mDA Center for Parkinson’s Disease neurons during their slow migration mode, stabilizes leading process morphology and increases the Research, Harvard Medical School and Brigham & Women’s probability of fast, laterally-directed migration. -
Podocyte Specific Knockdown of Klf15 in Podocin-Cre Klf15flox/Flox Mice Was Confirmed
SUPPLEMENTARY FIGURE LEGENDS Supplementary Figure 1: Podocyte specific knockdown of Klf15 in Podocin-Cre Klf15flox/flox mice was confirmed. (A) Primary glomerular epithelial cells (PGECs) were isolated from 12-week old Podocin-Cre Klf15flox/flox and Podocin-Cre Klf15+/+ mice and cultured at 37°C for 1 week. Real-time PCR was performed for Nephrin, Podocin, Synaptopodin, and Wt1 mRNA expression (n=6, ***p<0.001, Mann-Whitney test). (B) Real- time PCR was performed for Klf15 mRNA expression (n=6, *p<0.05, Mann-Whitney test). (C) Protein was also extracted and western blot analysis for Klf15 was performed. The representative blot of three independent experiments is shown in the top panel. The bottom panel shows the quantification of Klf15 by densitometry (n=3, *p<0.05, Mann-Whitney test). (D) Immunofluorescence staining for Klf15 and Wt1 was performed in 12-week old Podocin-Cre Klf15flox/flox and Podocin-Cre Klf15+/+ mice. Representative images from four mice in each group are shown in the left panel (X 20). Arrows show colocalization of Klf15 and Wt1. Arrowheads show a lack of colocalization. Asterisk demonstrates nonspecific Wt1 staining. “R” represents autofluorescence from RBCs. In the right panel, a total of 30 glomeruli were selected in each mouse and quantification of Klf15 staining in the podocytes was determined by the ratio of Klf15+ and Wt1+ cells to Wt1+ cells (n=6 mice, **p<0.01, unpaired t test). Supplementary Figure 2: LPS treated Podocin-Cre Klf15flox/flox mice exhibit a lack of recovery in proteinaceous casts and tubular dilatation after DEX administration. -
The Title of the Dissertation
UNIVERSITY OF CALIFORNIA SAN DIEGO Novel network-based integrated analyses of multi-omics data reveal new insights into CD8+ T cell differentiation and mouse embryogenesis A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Bioinformatics and Systems Biology by Kai Zhang Committee in charge: Professor Wei Wang, Chair Professor Pavel Arkadjevich Pevzner, Co-Chair Professor Vineet Bafna Professor Cornelis Murre Professor Bing Ren 2018 Copyright Kai Zhang, 2018 All rights reserved. The dissertation of Kai Zhang is approved, and it is accept- able in quality and form for publication on microfilm and electronically: Co-Chair Chair University of California San Diego 2018 iii EPIGRAPH The only true wisdom is in knowing you know nothing. —Socrates iv TABLE OF CONTENTS Signature Page ....................................... iii Epigraph ........................................... iv Table of Contents ...................................... v List of Figures ........................................ viii List of Tables ........................................ ix Acknowledgements ..................................... x Vita ............................................. xi Abstract of the Dissertation ................................. xii Chapter 1 General introduction ............................ 1 1.1 The applications of graph theory in bioinformatics ......... 1 1.2 Leveraging graphs to conduct integrated analyses .......... 4 1.3 References .............................. 6 Chapter 2 Systematic -
Watsonjn2018.Pdf (1.780Mb)
UNIVERSITY OF CENTRAL OKLAHOMA Edmond, Oklahoma Department of Biology Investigating Differential Gene Expression in vivo of Cardiac Birth Defects in an Avian Model of Maternal Phenylketonuria A THESIS SUBMITTED TO THE GRADUATE FACULTY In partial fulfillment of the requirements For the degree of MASTER OF SCIENCE IN BIOLOGY By Jamie N. Watson Edmond, OK June 5, 2018 J. Watson/Dr. Nikki Seagraves ii J. Watson/Dr. Nikki Seagraves Acknowledgements It is difficult to articulate the amount of gratitude I have for the support and encouragement I have received throughout my master’s thesis. Many people have added value and support to my life during this time. I am thankful for the education, experience, and friendships I have gained at the University of Central Oklahoma. First, I would like to thank Dr. Nikki Seagraves for her mentorship and friendship. I lucked out when I met her. I have enjoyed working on this project and I am very thankful for her support. I would like thank Thomas Crane for his support and patience throughout my master’s degree. I would like to thank Dr. Shannon Conley for her continued mentorship and support. I would like to thank Liz Bullen and Dr. Eric Howard for their training and help on this project. I would like to thank Kristy Meyer for her friendship and help throughout graduate school. I would like to thank my committee members Dr. Robert Brennan and Dr. Lilian Chooback for their advisement on this project. Also, I would like to thank the biology faculty and staff. I would like to thank the Seagraves lab members: Jailene Canales, Kayley Pate, Mckayla Muse, Grace Thetford, Kody Harvey, Jordan Guffey, and Kayle Patatanian for their hard work and support. -
Investigating Cone Photoreceptor Development Using Patient-Derived NRL Null Retinal Organoids
ARTICLE https://doi.org/10.1038/s42003-020-0808-5 OPEN Investigating cone photoreceptor development using patient-derived NRL null retinal organoids Alyssa Kallman1,11, Elizabeth E. Capowski 2,11, Jie Wang 3, Aniruddha M. Kaushik4, Alex D. Jansen2, Kimberly L. Edwards2, Liben Chen4, Cynthia A. Berlinicke3, M. Joseph Phillips2,5, Eric A. Pierce6, Jiang Qian3, ✉ ✉ Tza-Huei Wang4,7, David M. Gamm2,5,8 & Donald J. Zack 1,3,9,10 1234567890():,; Photoreceptor loss is a leading cause of blindness, but mechanisms underlying photoreceptor degeneration are not well understood. Treatment strategies would benefit from improved understanding of gene-expression patterns directing photoreceptor development, as many genes are implicated in both development and degeneration. Neural retina leucine zipper (NRL) is critical for rod photoreceptor genesis and degeneration, with NRL mutations known to cause enhanced S-cone syndrome and retinitis pigmentosa. While murine Nrl loss has been characterized, studies of human NRL can identify important insights for human retinal development and disease. We utilized iPSC organoid models of retinal development to molecularly define developmental alterations in a human model of NRL loss. Consistent with the function of NRL in rod fate specification, human retinal organoids lacking NRL develop S- opsin dominant photoreceptor populations. We report generation of two distinct S-opsin expressing populations in NRL null retinal organoids and identify MEF2C as a candidate regulator of cone development. 1 Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, USA. 2 Waisman Center, University of Wisconsin-Madison, Madison, USA. 3 Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, USA. -
Supplemental Materials ZNF281 Enhances Cardiac Reprogramming
Supplemental Materials ZNF281 enhances cardiac reprogramming by modulating cardiac and inflammatory gene expression Huanyu Zhou, Maria Gabriela Morales, Hisayuki Hashimoto, Matthew E. Dickson, Kunhua Song, Wenduo Ye, Min S. Kim, Hanspeter Niederstrasser, Zhaoning Wang, Beibei Chen, Bruce A. Posner, Rhonda Bassel-Duby and Eric N. Olson Supplemental Table 1; related to Figure 1. Supplemental Table 2; related to Figure 1. Supplemental Table 3; related to the “quantitative mRNA measurement” in Materials and Methods section. Supplemental Table 4; related to the “ChIP-seq, gene ontology and pathway analysis” and “RNA-seq” and gene ontology analysis” in Materials and Methods section. Supplemental Figure S1; related to Figure 1. Supplemental Figure S2; related to Figure 2. Supplemental Figure S3; related to Figure 3. Supplemental Figure S4; related to Figure 4. Supplemental Figure S5; related to Figure 6. Supplemental Table S1. Genes included in human retroviral ORF cDNA library. Gene Gene Gene Gene Gene Gene Gene Gene Symbol Symbol Symbol Symbol Symbol Symbol Symbol Symbol AATF BMP8A CEBPE CTNNB1 ESR2 GDF3 HOXA5 IL17D ADIPOQ BRPF1 CEBPG CUX1 ESRRA GDF6 HOXA6 IL17F ADNP BRPF3 CERS1 CX3CL1 ETS1 GIN1 HOXA7 IL18 AEBP1 BUD31 CERS2 CXCL10 ETS2 GLIS3 HOXB1 IL19 AFF4 C17ORF77 CERS4 CXCL11 ETV3 GMEB1 HOXB13 IL1A AHR C1QTNF4 CFL2 CXCL12 ETV7 GPBP1 HOXB5 IL1B AIMP1 C21ORF66 CHIA CXCL13 FAM3B GPER HOXB6 IL1F3 ALS2CR8 CBFA2T2 CIR1 CXCL14 FAM3D GPI HOXB7 IL1F5 ALX1 CBFA2T3 CITED1 CXCL16 FASLG GREM1 HOXB9 IL1F6 ARGFX CBFB CITED2 CXCL3 FBLN1 GREM2 HOXC4 IL1F7 -
Modulating Hallmarks of Cholangiocarcinoma
University of Nebraska Medical Center DigitalCommons@UNMC Theses & Dissertations Graduate Studies Fall 12-14-2018 Modulating Hallmarks of Cholangiocarcinoma Cody Wehrkamp University of Nebraska Medical Center Follow this and additional works at: https://digitalcommons.unmc.edu/etd Part of the Molecular Biology Commons Recommended Citation Wehrkamp, Cody, "Modulating Hallmarks of Cholangiocarcinoma" (2018). Theses & Dissertations. 337. https://digitalcommons.unmc.edu/etd/337 This Dissertation is brought to you for free and open access by the Graduate Studies at DigitalCommons@UNMC. It has been accepted for inclusion in Theses & Dissertations by an authorized administrator of DigitalCommons@UNMC. For more information, please contact [email protected]. MODULATING HALLMARKS OF CHOLANGIOCARCINOMA by Cody J. Wehrkamp A DISSERTATION Presented to the Faculty of the University of Nebraska Graduate College in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Biochemistry and Molecular Biology Graduate Program Under the Supervision of Professor Justin L. Mott University of Nebraska Medical Center Omaha, Nebraska November 2018 Supervisory Committee: Kaustubh Datta, Ph.D. Melissa Teoh‐Fitzgerald, Ph.D. Richard G. MacDonald, Ph.D. Acknowledgements This endeavor has led to scientific as well as personal growth for me. I am indebted to many for their knowledge, influence, and support along the way. To my mentor, Dr. Justin L. Mott, you have been an incomparable teacher and invaluable guide. You upheld for me the concept that science is intrepid, even when the experience is trying. Through my training, and now here at the end, I can say that it has been an honor to be your protégé. When you have shaped your future graduates to be and do great, I will be privileged to say that I was your first one. -
22 Ultra-Conserved Elements in Vertebrate and Fly Genomes Mathias Drton Nicholas Eriksson Garmay Leung
22 Ultra-Conserved Elements in Vertebrate and Fly Genomes Mathias Drton Nicholas Eriksson Garmay Leung Ultra-conserved elements in an alignment of multiple genomes are consecutive nucleotides that are in perfect agreement across all the genomes. For aligned vertebrate and fly genomes, we give descriptive statistics of ultra-conserved elements, explain their biological relevance, and show that the existence of ultra-conserved elements is highly improbable in neutrally evolving regions. 22.1 The data Our analyses of ultra-conserved elements are based on multiple sequence align- ments produced by MAVID [Bray and Pachter, 2004]. Prior to the alignment of multiple genomes, homology mappings (from Mercator [Dewey, 2005]) group into bins genomic regions that are anchored together by neighboring homolo- gous exons. A multiple sequence alignment is then produced for each of these alignment bins. MAVID is a global multiple alignment program, and therefore homologous regions with more than one homologous hit to another genome may not be found aligned together. Table 22.1 shows an example of Merca- tor’s output for a single region along with the beginning of the resulting MAVID multiple sequence alignment. Species Chrom. Start End Alignment Dog chrX 752057 864487 + A----AACCAAA--------- Chicken chr1 122119382 122708162 − TGCTGAGCTAAAGATCAGGCT Zebrafish chr9 19018916 19198136 + ------ATGCAACATGCTTCT Pufferfish chr2 7428614 7525502 + ---TAGATGGCAGACGATGCT Fugufish asm1287 21187 82482 + ---TCAAGGG----------- Table 22.1. Mercator output for a single bin, giving the position and orientation on the chromosome. Notice that the Fugu fish genome has not been fully assembled into chromosomes (cf. Section 4.2). The vertebrate dataset consists of 10,279 bins over 9 genomes (Table 22.2). -
Klf5 Is Involved in Self-Renewal of Mouse Embryonic Stem Cells
Short Report 2629 Klf5 is involved in self-renewal of mouse embryonic stem cells Silvia Parisi1,2,*, Fabiana Passaro1,3,*, Luigi Aloia1,2, Ichiro Manabe4, Ryozo Nagai5, Lucio Pastore1,3 and Tommaso Russo1,3,‡ 1CEINGE Biotecnologie Avanzate, 80145 Napoli, Italy 2European School of Molecular Medicine, SEMM, 80145 Napoli, Italy 3Dipartimento di Biochimica e Biotecnologie Mediche, Università di Napoli Federico II, 80131 Napoli, Italy 4Nano-Bioengineering Education Program and 5Department of Cardiovascular Medicine, The University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, Japan *These authors contributed equally to this work ‡Author for correspondence (e-mail: [email protected]) Accepted 15 May 2008 Journal of Cell Science 121, 2629-2634 Published by The Company of Biologists 2008 doi:10.1242/jcs.027599 Summary Self-renewal of embryonic stem cells (ESCs) is maintained by undifferentiated state by Klf5 is, at least in part, due to the a complex regulatory mechanism involving transcription factors control of Nanog and Oct3/4 transcription, because Klf5 directly Oct3/4 (Pou5f1), Nanog and Sox2. Here, we report that Klf5, a binds to the promoters of these genes and regulates their Zn-finger transcription factor of the Kruppel-like family, is transcription. involved in ESC self-renewal. Klf5 is expressed in mouse ESCs, blastocysts and primordial germ cells, and its knockdown by RNA interference alters the molecular phenotype of ESCs, Supplementary material available online at thereby preventing their correct differentiation. The ability of http://jcs.biologists.org/cgi/content/full/121/16/2629/DC1 Klf5 to maintain ESCs in the undifferentiated state is supported by the finding that differentiation of ESCs is prevented Key words: Differentiation, Kruppel-like factors, Nanog, Oct3/4, when Klf5 is constitutively expressed. -
SUPPLEMENTARY MATERIAL Bone Morphogenetic Protein 4 Promotes
www.intjdevbiol.com doi: 10.1387/ijdb.160040mk SUPPLEMENTARY MATERIAL corresponding to: Bone morphogenetic protein 4 promotes craniofacial neural crest induction from human pluripotent stem cells SUMIYO MIMURA, MIKA SUGA, KAORI OKADA, MASAKI KINEHARA, HIROKI NIKAWA and MIHO K. FURUE* *Address correspondence to: Miho Kusuda Furue. Laboratory of Stem Cell Cultures, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8, Saito-Asagi, Ibaraki, Osaka 567-0085, Japan. Tel: 81-72-641-9819. Fax: 81-72-641-9812. E-mail: [email protected] Full text for this paper is available at: http://dx.doi.org/10.1387/ijdb.160040mk TABLE S1 PRIMER LIST FOR QRT-PCR Gene forward reverse AP2α AATTTCTCAACCGACAACATT ATCTGTTTTGTAGCCAGGAGC CDX2 CTGGAGCTGGAGAAGGAGTTTC ATTTTAACCTGCCTCTCAGAGAGC DLX1 AGTTTGCAGTTGCAGGCTTT CCCTGCTTCATCAGCTTCTT FOXD3 CAGCGGTTCGGCGGGAGG TGAGTGAGAGGTTGTGGCGGATG GAPDH CAAAGTTGTCATGGATGACC CCATGGAGAAGGCTGGGG MSX1 GGATCAGACTTCGGAGAGTGAACT GCCTTCCCTTTAACCCTCACA NANOG TGAACCTCAGCTACAAACAG TGGTGGTAGGAAGAGTAAAG OCT4 GACAGGGGGAGGGGAGGAGCTAGG CTTCCCTCCAACCAGTTGCCCCAAA PAX3 TTGCAATGGCCTCTCAC AGGGGAGAGCGCGTAATC PAX6 GTCCATCTTTGCTTGGGAAA TAGCCAGGTTGCGAAGAACT p75 TCATCCCTGTCTATTGCTCCA TGTTCTGCTTGCAGCTGTTC SOX9 AATGGAGCAGCGAAATCAAC CAGAGAGATTTAGCACACTGATC SOX10 GACCAGTACCCGCACCTG CGCTTGTCACTTTCGTTCAG Suppl. Fig. S1. Comparison of the gene expression profiles of the ES cells and the cells induced by NC and NC-B condition. Scatter plots compares the normalized expression of every gene on the array (refer to Table S3). The central line -
Analysis of Early Changes in DNA Methylation in Synovial Fibroblasts
www.nature.com/scientificreports OPEN Analysis of early changes in DNA methylation in synovial fbroblasts of RA patients before diagnosis Received: 14 November 2017 Emmanuel Karouzakis1, Karim Raza2,4, Christoph Kolling 3, Christopher D. Buckley 2, Accepted: 26 March 2018 Stefen Gay1, Andrew Filer2,5 & Caroline Ospelt1 Published: xx xx xxxx DNA methylation is an important epigenetic modifcation that is known to be altered in rheumatoid arthritis synovial fbroblasts (RASF). Here, we compared the status of promoter DNA methylation of SF from patients with very early RA with SF from patients with resolving arthritis, fully established RA and from non-arthritic patients. DNA was hybridized to Infnium Human methylation 450k and 850k arrays and diferential methylated genes and pathways were identifed. We could identify a signifcant number of CpG sites that difered between the SF of diferent disease stages, showing that epigenetic changes in SF occur early in RA development. Principal component analysis confrmed that the diferent groups of SF were separated according to their DNA methylation state. Furthermore, pathway analysis showed that important functional pathways were altered in both very early and late RASF. By focusing our analysis on CpG sites in CpG islands within promoters, we identifed genes that have signifcant hypermethylated promoters in very early RASF. Our data show that changes in DNA methylation difer in RASF compared to other forms of arthritis and occur at a very early, clinically yet unspecifc stage of disease. The identifed diferential methylated genes might become valuable prognostic biomarkers for RA development. Rheumatoid arthritis (RA) is a chronic, destructive autoimmune arthritis that afects 0.5–1% of the population worldwide. -
(12) United States Patent (10) Patent No.: US 7,067,617 B2 Barbas, III Et Al
US007067617B2 (12) United States Patent (10) Patent No.: US 7,067,617 B2 Barbas, III et al. (45) Date of Patent: Jun. 27, 2006 (54) ZINC FINGER BINDING DOMAINS FOR OTHER PUBLICATIONS NUCLEOTDE SEOUENCE ANN Q Nagase et al., DNA Research, 2000, vol. 7, pp. 271-281.* (75) Inventors: Carlos F. Barbas, III, Solana Beach, Zweidler-McKay, et al ... “Gifi-1 Encodes a Nuclear Zinc CA (US); Birgit Dreier, Adlikon (CH) Finger Protein That Binds DNA and Functions as a Tran s s scriptional Repressor, Mol. Cell. Biol. 16: 4024-4034 (73) Assignee: The Scripps Research Institute, La (1996). Jolla, CA (US) Dreier, et al., “Insights into the Molecular Recogntion of the s 5-GNN-3 Family of Sequences by Zinc Finger Domains’. (*) Notice: Subject to any disclaimer, the term of this J. Mol. Biol. 303: 489-502 (2000). patent is extended or adjusted under 35 Celenza, et al., “A Yeast Gene That is Essential for Release U.S.C. 154(b) by 115 days. from Glucose Repression Encodes a Protein Kinase”, Sci ence 233: 1175-1180 (1986). (21) Appl. No.: 10/080,100 Singh, et al., “Molecular Cloning of an Enhancer Binding Protein: Isolation by Screening of an Expression Library (22) Filed: Feb. 21, 2002 with a Recognition Site DNA”, Cell 52: 415-423 (1988). Kinzler, et al., “The GLI Gene is a Member of the Kruppel (65) Prior Publication Data Family of Zinc Finger Proteins”, Nature 332: 371-374 US 20O2/O165356 A1 Nov. 7, 2002 (1988). OV. f. Debs, et al., “Regulation Gene Expression in Vivo by Related U.S.