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2. Complete Mitochondrial Genome of a Gymnosperm, Sitka Spruce (Picea sitchensis), Indicates a Complex Physical Structure

Author

Stephen Pleasance, Steven J.M. Jones, Yongjun Zhao, Inanc Birol, Tina MacLeod, Heather Kirk, Shaun D. Jackman, Jean Bousquet, René L. Warren, Lauren Coombe, Eva Trinh, Joerg Bohlmann, Pawan Pandoh, and Robin J.N. Coope

Subjects
AcademicSubjects/SCI01140, 0106 biological sciences, Mitochondrial DNA, gymnosperms, organelle, Sitka spruce, Sequence assembly, Biology, 01 natural sciences, Genome, ABySS, 03 medical and health sciences, Gymnosperm, Genetics, Picea, Ecology, Evolution, Behavior and Systematics, 030304 developmental biology, 0303 health sciences, Molecular Structure, Contig, fungi, AcademicSubjects/SCI01130, sequencing, biology.organism_classification, Genome Report, Multipartite, Evolutionary biology, Minion, Genome, Mitochondrial, genome assembly, Nanopore sequencing, Genome, Plant, 010606 plant biology & botany
Abstract

Plant mitochondrial genomes vary widely in size. Although many plant mitochondrial genomes have been sequenced and assembled, the vast majority are of angiosperms, and few are of gymnosperms. Most plant mitochondrial genomes are smaller than a megabase, with a few notable exceptions. We have sequenced and assembled the complete 5.5-Mb mitochondrial genome of Sitka spruce (Picea sitchensis), to date, one of the largest mitochondrial genomes of a gymnosperm. We sequenced the whole genome using Oxford Nanopore MinION, and then identified contigs of mitochondrial origin assembled from these long reads based on sequence homology to the white spruce mitochondrial genome. The assembly graph shows a multipartite genome structure, composed of one smaller 168-kb circular segment of DNA, and a larger 5.4-Mb single component with a branching structure. The assembly graph gives insight into a putative complex physical genome structure, and its branching points may represent active sites of recombination.

Published
2020

3. Construction of Strand-seq libraries in open nanoliter arrays

Author

Vincent C.T. Hanlon, Daniel D. Chan, Zeid Hamadeh, Yanni Wang, Carl-Adam Mattsson, Diana C.J. Spierings, Robin J.N. Coope, Peter M. Lansdorp, Stem Cell Aging Leukemia and Lymphoma (SALL), and Damage and Repair in Cancer Development and Cancer Treatment (DARE)

Subjects
Cultural Studies, History, Literature and Literary Theory, genetic processes, natural sciences
Abstract

Single-cell Strand-seq generates directional genomic information to study DNA repair, assemble genomes, and map structural variation onto chromosome-length haplotypes. We report a nanoliter-volume, one-pot (OP) Strand-seq library preparation protocol in which reagents are added cumulatively, DNA purification steps are avoided, and enzymes are inactivated with a thermolabile protease. OP-Strand-seq libraries capture 10%-25% of the genome from a single-cell with reduced costs and increased throughput.

Published
2022

4. Optimization of magnetic bead-based nucleic acid extraction for SARS-CoV-2 testing using readily available reagents

Author

Jason Nguyen, Edmund Su, Simon Haile, Agatha N. Jassem, Amee R. Manges, Diane Eisler, Michelle Moksa, Mel Krajden, David D.W. Twa, Leah M Prentice, Qi Cao, Stephen Pleasance, Aidan M. Nikiforuk, Martin Krzywinski, Andrew J. Mungall, Natalie Prystajecky, Steven J. M. Jones, Frankie Tsang, Jessica Nelson, Marcus Wong, Duane E Smailus, Marco A. Marra, Yongjun Zhao, Angus Wong, Pawan Pandoh, Martin Hirst, and Robin J.N. Coope

Subjects
2019-20 coronavirus outbreak, Coronavirus disease 2019 (COVID-19), Computer science, Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Short Communication, Biology, Sensitivity and Specificity, Cross-well, COVID-19 Testing, Contamination, Virology, Nucleic Acids, Humans, Hamilton NIMBUS, Process engineering, NA, nucleic acid, Pandemics, Magnetic beads, business.industry, SARS-CoV-2, Nucleic acid extraction, Magnetic Phenomena, Extraction (chemistry), Ct, PCR cycle threshold, Diagnostic test, COVID-19, Reagent, Magnetic bead, Nucleic acid, qPCR, quantitative polymerase chain reaction, RNA, RNA, Viral, Indicators and Reagents, business
Abstract

The COVID-19 pandemic has highlighted the need for generic reagents and flexible systems in diagnostic testing. Magnetic bead-based nucleic acid extraction protocols using 96-well plates on open liquid handlers are readily amenable to meet this need. Here, one such approach is rigorously optimized to minimize cross-well contamination while maintaining sensitivity.Article SummaryA scalable, non-proprietary, magnetic bead-based automated nucleic acid extraction protocol optimised for minimum cross-well contamination

Published
2021

5. MAVIS: merging, annotation, validation, and illustration of structural variants

Author

Daniel Paulino, Richard A. Moore, Karen Mungall, Yussanne Ma, Dustin Bleile, Andrew J. Mungall, Amir Muhammadzadeh, Steven J.M. Jones, Inna Shlafman, Stephen Pleasance, Caleb Choo, Caralyn Reisle, and Robin J.N. Coope

Subjects
Statistics and Probability, 0303 health sciences, Computer science, Process (engineering), 030302 biochemistry & molecular biology, Computational Biology, Structural variant, Context (language use), Genomics, Computational biology, Biochemistry, Genome, Computer Science Applications, Transcriptome, 03 medical and health sciences, Computational Mathematics, Annotation, Computational Theory and Mathematics, Neoplasms, Key (cryptography), Humans, Molecular Biology, Software, 030304 developmental biology
Abstract

Summary Reliably identifying genomic rearrangements and interpreting their impact is a key step in understanding their role in human cancers and inherited genetic diseases. Many short read algorithmic approaches exist but all have appreciable false negative rates. A common approach is to evaluate the union of multiple tools increasing sensitivity, followed by filtering to retain specificity. Here we describe an application framework for the rapid generation of structural variant consensus, unique in its ability to visualize the genetic impact and context as well as process both genome and transcriptome data. Availability and implementation http://mavis.bcgsc.ca Supplementary information Supplementary data are available at Bioinformatics online.

Published
2018

6. Largest Complete Mitochondrial Genome of a Gymnosperm, Sitka Spruce (Picea sitchensis), Indicates Complex Physical Structure

Author

Inanc Birol, Tina McLeod, Heather Kirk, Lauren Coombe, Stephen Pleasance, Eva Trinh, Jean Bousquet, René L. Warren, Steven J.M. Jones, Yongjun Zhao, Shaun D. Jackman, Joerg Bohlmann, Pawan Pandoh, and Robin J.N. Coope

Subjects
Mitochondrial DNA, Contig, fungi, food and beverages, Biology, biology.organism_classification, Genome, chemistry.chemical_compound, Multipartite, Gymnosperm, chemistry, Evolutionary biology, Minion, Nanopore sequencing, DNA
Abstract

Plant mitochondrial genomes vary widely in size. Although many plant mitochondrial genomes have been sequenced and assembled, the vast majority are of angiosperms, and few are of gymnosperms. Most plant mitochondrial genomes are smaller than a megabase, with a few notable exceptions. We have sequenced and assembled the 5.5 Mbp mitochondrial genome of Sitka spruce (Picea sitchensis), the largest complete mitochondrial genome of a gymnosperm. We sequenced the whole genome using Oxford Nanopore MinION, and then identified contigs of mitochondrial origin assembled from these long reads. The assembly graph shows a multipartite genome structure, composed of one smaller 168 kbp circular segment of DNA, and a larger 5.4 Mbp component with a branching structure. The assembly graph gives insight into a putative complex physical genome structure, and its branching points may represent active sites of recombination.

Published
2019
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7. A high-throughput protocol for isolating cell-free circulating tumor DNA from peripheral blood

Author

Marco A. Marra, Heather Kirk, Richard Corbett, Helen McDonald, Yussanne Ma, Miguel Alcaide, Eva Trinh, Yongjun Zhao, Duane E. Smailus, Tina MacLeod, Richard A. Moore, Steve Bilobram, Andrew J. Mungall, Aly Karsan, Ryan D. Morin, Simon Haile, Robert A. Holt, Pawan Pandoh, Robin J.N. Coope, and Steven J.M. Jones

Subjects
Treatment response, Somatic cell, Cell free, 01 natural sciences, General Biochemistry, Genetics and Molecular Biology, Circulating Tumor DNA, 03 medical and health sciences, Neoplasms, medicine, Biomarkers, Tumor, Humans, Centrifugation, Liquid biopsy, 030304 developmental biology, 0303 health sciences, Chemistry, 010401 analytical chemistry, Cancer, High-Throughput Nucleotide Sequencing, medicine.disease, Molecular biology, Peripheral blood, 0104 chemical sciences, High-Throughput Screening Assays, Circulating tumor DNA, Mutation, Cell-Free Nucleic Acids, Biotechnology
Abstract

The analysis of cell-free circulating tumor DNA (ctDNA) is potentially a less invasive, more dynamic assessment of cancer progression and treatment response than characterizing solid tumor biopsies. Standard isolation methods require separation of plasma by centrifugation, a time-consuming step that complicates automation. To address these limitations, we present an automatable magnetic bead-based ctDNA isolation method that eliminates centrifugation to purify ctDNA directly from peripheral blood (PB). To develop and test our method, ctDNA from cancer patients was purified from PB and plasma. We found that allelic fractions of somatic single-nucleotide variants from target gene capture libraries were comparable, indicating that the PB ctDNA purification method may be a suitable replacement for the plasma-based protocols currently in use.

Published
2019

8. Organellar Genomes of White Spruce (Picea glauca): Assembly and Annotation

Author

Carol Ritland, Mark R. Wildung, Joerg Bohlmann, Robin J.N. Coope, Jean Bousquet, Benjamin P. Vandervalk, Justin Chu, Shaun D. Jackman, Anthony Raymond, Steven J.M. Jones, Stephen Pleasance, Inanc Birol, Hamid Mohamadi, Ewan A. Gibb, and René L. Warren

Subjects
0301 basic medicine, Mitochondrial DNA, Nuclear gene, gymnosperms, organelle, Molecular Sequence Data, Sequence assembly, Biology, Genome, white spruce, ABySS, 03 medical and health sciences, Contig Mapping, Genetics, Picea, Genome, Chloroplast, Gene, Ecology, Evolution, Behavior and Systematics, Base Sequence, Shotgun sequencing, fungi, food and beverages, Molecular Sequence Annotation, sequencing, 030104 developmental biology, RNA editing, Transfer RNA, Genome, Mitochondrial, genome assembly, Genome, Plant, Research Article
Abstract

The genome sequences of the plastid and mitochondrion of white spruce (Picea glauca) were assembled from whole-genome shotgun sequencing data using ABySS. The sequencing data contained reads from both the nuclear and organellar genomes, and reads of the organellar genomes were abundant in the data as each cell harbors hundreds of mitochondria and plastids. Hence, assembly of the 123-kb plastid and 5.9-Mb mitochondrial genomes were accomplished by analyzing data sets primarily representing low coverage of the nuclear genome. The assembled organellar genomes were annotated for their coding genes, ribosomal RNA, and transfer RNA. Transcript abundances of the mitochondrial genes were quantified in three developmental tissues and five mature tissues using data from RNA-seq experiments. C-to-U RNA editing was observed in the majority of mitochondrial genes, and in four genes, editing events were noted to modify ACG codons to create cryptic AUG start codons. The informatics methodology presented in this study should prove useful to assemble organellar genomes of other plant species using whole-genome shotgun sequencing data.

Published
2015

9. Clonal Decomposition and DNA Replication States Defined by Scaled Single-Cell Genome Sequencing

Author

Edward S. Boyden, Elizabeth A. Chavez, Steven S.S. Poon, Robby Becker, Wendy Greenwood, M Jafar Taghiyar, Peter Eirew, Maximillian Lee, Carl L. Hansen, Hans Zahn, Sohrab P. Shah, Mohammad Al Sa’d, Jonas Windager, Maia A. Smith, Lauren Martin, Hsuan Lee, Matt Wiens, So Ra Lee, A. Dariush, Oleg Golovko, Fergus Cafferty, Sorhab Shah, Russell Kunes, Owen Harris, Nick Chornay, Jean Fan, Samuel Aparicio, Marco A. Marra, Shankar Balasubramanian, Stephen Chia, Andrew McPherson, Farhia Kabeer, Samantha Leung, Sophia A Wild, Neil Millar, Claire Mulvey, Shahar Alon, Giorgia Battistoni, Leonardo Sepulveda Duran, Anubhav Sinha, Khanh N. Dinh, Viktoria Bojilova, Yi Cui, Nafis Abrar, Sophia Chan, Yussanne Ma, Austin Smith, Marcel Burger, Jean Hausser, Eduardo Gonzales Solares, Maurizio Callari, Bernd Bodenmiller, Dario Bressan, Aybuke Kupcu Yoldas, Tehmina Masud, Adi Steif, Colin Mar, Abigail Shea, Gregory J. Hannon, Yangguang Li, Timothy M. Chan, Christian Steidl, Cydney B. Nielsen, Flaminia Grimaldi, Eyal Fisher, Daniel J. Da Costa, Tatjana Kovacevic, Carlos Gonzalez-Fernandez, Beixi Wang, Spencer Watson, Sandra Tietscher, Teresa Ruiz, Ignacio Vázquez-García, Jessica Ngo, Amauche Emenari, Pu Zheng, Kirsty Sawicka, Carlos Caldas, Asmamaw T Wassie, Daniel Lai, Chenglong Xia, Oscar M. Rueda, Robin J.N. Coope, Andrew J. Mungall, Fiona Nugent, Marta Paez Ribes, Karen A. Gelmon, Stephen Pleasance, Simon Tavaré, Pascale Walters, Teresa Ruiz de Algara, Ciara H. O'Flanagan, Curtis Huebner, Emma Laks, T. Michael Underhill, Jazmine Brimhall, Alastair Marti, Justina Biele, R. Wilder Scott, Diljot Grewal, Fatime Qosaj, Richard D. Moore, Dan Goodwin, Laura Kuett, Nicolas A. Walton, Suvi Harris, Emmanouil D. Karagiannis, Cristina Jauset, Elena Williams, Isabella Pearsall, Sara Vogl, Alejandra Bruna, Yaniv Lubling, Jerome Ting, Ian G. Cannell, Xiaowei Zhuang, Richard Corbett, Hannah Casbolt, Giulia Lerda, Johanna A. Joyce, and Spencer Vatrt-Watts

Subjects
Genome instability, DNA Replication, Male, tumor evolution, Genotype, Cell Survival, Genomics, Computational biology, Biology, Genome, Polymorphism, Single Nucleotide, Article, General Biochemistry, Genetics and Molecular Biology, DNA sequencing, 03 medical and health sciences, Mice, 0302 clinical medicine, copy number, Cell Line, Tumor, tumor heterogeneity, Animals, Chromosomes, Human, Humans, Cell Shape, Phylogeny, 030304 developmental biology, cancer genomics, 0303 health sciences, Genome, Human, Cell Cycle, DNA replication, High-Throughput Nucleotide Sequencing, Cell cycle, genomic instability, Aneuploidy, Diploidy, single cell, Clone Cells, Mutation, DNA Transposable Elements, Female, Ploidy, Single-Cell Analysis, 030217 neurology & neurosurgery
Abstract

Summary Accurate measurement of clonal genotypes, mutational processes, and replication states from individual tumor-cell genomes will facilitate improved understanding of tumor evolution. We have developed DLP+, a scalable single-cell whole-genome sequencing platform implemented using commodity instruments, image-based object recognition, and open source computational methods. Using DLP+, we have generated a resource of 51,926 single-cell genomes and matched cell images from diverse cell types including cell lines, xenografts, and diagnostic samples with limited material. From this resource we have defined variation in mitotic mis-segregation rates across tissue types and genotypes. Analysis of matched genomic and image measurements revealed correlations between cellular morphology and genome ploidy states. Aggregation of cells sharing copy number profiles allowed for calculation of single-nucleotide resolution clonal genotypes and inference of clonal phylogenies and avoided the limitations of bulk deconvolution. Finally, joint analysis over the above features defined clone-specific chromosomal aneuploidy in polyclonal populations., Graphical Abstract, Highlights • Scaled method and resource of > 50K single-cell whole genomes from diverse cell types • Clonal merging can resolve clone specific mutations to single-nucleotide level • Image analysis of single cells permits correlation of morphology and genome features • Clonal replication states and rare aneuploidy patterns of single cells measured, A high-throughput method for amplication-free single-cell whole-genome sequencing can be scaled up to analyze tens of thousands of cells from different tissues and clinical sample types and identifies replication states, aneuploidies, and subclonal mutations.

Published
2018

10. Rapid Prototyping, Design and Early Testing of a Novel Device for Supine Positioning of Large Volume or Pendulous Breasts in Radiotherapy

Author

Cheryl Duzenli, Robin J.N. Coope, Joel Beaudry, Scott Young, Levi Burns, and B Gill

Subjects
education.field_of_study, medicine.medical_specialty, Supine position, business.industry, medicine.medical_treatment, Population, Torso, medicine.disease, 030218 nuclear medicine & medical imaging, Radiation therapy, 03 medical and health sciences, 0302 clinical medicine, medicine.anatomical_structure, Moist desquamation, Breast cancer, Skin fold, 030220 oncology & carcinogenesis, medicine, Radiology, education, Radiation treatment planning, business
Abstract

Here we describe the development of a novel device for breast positioning in supine radiotherapy that reduces breast sag and skin folds for patients with large or pendulous breasts. The overall aim of this work is to provide a practical and robust means of reducing high grade skin toxicity (moist desquamation) which tends to occur in skin folds. Participants with breast cup size D or greater were recruited to this ethics board approved prototype design study. Brassiere size, cup size, breast diameter, body mass index, height, weight, skin folds and torso dimensions were measured. Participants were positioned in treatment position on a breast board, with arms above the head and skin folds were identified and measured. 3D optical surface imaging provided initial design ideas and a rapid prototyping process using 3D printing was employed to arrive at a suitable design. The final clinical device consists of a curved carbon fibre breast support scoop suspended from a rigid frame that is compatible with commercially available breast boards. In addition to reducing skin folds, the device better positions the breast on the chest wall to help minimize the volume of normal tissue being irradiated and facilitates rapid setup. We present results of preliminary testing of the device, including dose buildup incurred by the carbon fibre scoop, skin fold reduction data and treatment planning data from CT simulations with and without the device. Surface dose with the device in place remains less than 80% of the prescription dose to the breast. Skin folds were reduced and reductions in irradiated volumes of lung and body were achieved compared with clinical plans without the supportive device. The novel breast support shows great potential to address a long-standing problem for a significant population of patients undergoing radiotherapy for breast cancer.

Published
2018

11. Evaluation of protocols for rRNA depletion-based RNA sequencing of nanogram inputs of mammalian total RNA

Author

Marco A. Marra, Tina MacLeod, Richard A. Moore, Richard Corbett, Pawan Pandoh, Yongjun Zhao, Ryan D. Morin, Bruno M. Grande, Miruna Bala, Heather Kirk, Steve Bilobram, Andrew J. Mungall, Steven J.M. Jones, Robin J.N. Coope, Karen Mungall, Helen McDonald, and Simon Haile

Subjects
cDNA libraries, Tissue Fixation, Hydrolases, Molecular biology, Biochemistry, Database and Informatics Methods, Sequencing techniques, 0302 clinical medicine, DNA libraries, Energy-Producing Organelles, Mammals, 0303 health sciences, Multidisciplinary, Messenger RNA, High-Throughput Nucleotide Sequencing, RNA sequencing, Complementary DNA, Enzymes, Mitochondria, Nucleic acids, Ribosomal RNA, RNA splicing, Medicine, Sequence Analysis, Research Article, Cell biology, Cellular structures and organelles, Nucleases, Forms of DNA, Bioinformatics, Sequence analysis, Science, Sequence alignment, Computational biology, Bioenergetics, Biology, 03 medical and health sciences, Ribonucleases, Extraction techniques, DNA-binding proteins, Genetics, Animals, Humans, RNA, Messenger, Nucleic acid structure, Non-coding RNA, 030304 developmental biology, Biology and life sciences, Base Sequence, Sequence Analysis, RNA, cDNA library, Gene Expression Profiling, Proteins, RNA, DNA, RNA extraction, Research and analysis methods, Molecular biology techniques, RNA, Ribosomal, Enzymology, Transcriptome, Ribosomes, Sequence Alignment, 030217 neurology & neurosurgery
Abstract

Next generation RNA-sequencing (RNA-seq) is a flexible approach that can be applied to a range of applications including global quantification of transcript expression, the characterization of RNA structure such as splicing patterns and profiling of expressed mutations. Many RNA-seq protocols require up to microgram levels of total RNA input amounts to generate high quality data, and thus remain impractical for the limited starting material amounts typically obtained from rare cell populations, such as those from early developmental stages or from laser micro-dissected clinical samples. Here, we present an assessment of the contemporary ribosomal RNA depletion-based protocols, and identify those that are suitable for inputs as low as 1-10 ng of intact total RNA and 100-500 ng of partially degraded RNA from formalin-fixed paraffin-embedded tissues.

Published
2019

12. Sources of erroneous sequences and artifact chimeric reads in next generation sequencing of genomic DNA from formalin-fixed paraffin-embedded samples

Author

Karen Novik, Richard Corbett, Simon Haile, Morgan H. Bye, Miruna Bala, Yussanne Ma, Steven J.M. Jones, Diane Miller, Eva Trinh, Pawan Pandoh, Helen McDonald, Tina MacLeod, Richard A. Moore, Heather Kirk, Yongjun Zhao, Andrew J. Mungall, Robin J.N. Coope, Steve Bilobram, Robert A. Holt, and Marco A. Marra

Subjects
Hot Temperature, Sequence analysis, Genomics, Artifact (software development), Computational biology, Biology, Genome, DNA sequencing, Fixatives, 03 medical and health sciences, 0302 clinical medicine, Formaldehyde, Genetics, Animals, Genomic library, 030304 developmental biology, Genomic Library, 0303 health sciences, Paraffin Embedding, High-Throughput Nucleotide Sequencing, Sequence Analysis, DNA, Mice, Inbred C57BL, genomic DNA, Methods Online, Artifacts, 030217 neurology & neurosurgery, Reference genome
Abstract

Tissues used in pathology laboratories are typically stored in the form of formalin-fixed, paraffin-embedded (FFPE) samples. One important consideration in repurposing FFPE material for next generation sequencing (NGS) analysis is the sequencing artifacts that can arise from the significant damage to nucleic acids due to treatment with formalin, storage at room temperature and extraction. One such class of artifacts consists of chimeric reads that appear to be derived from non-contiguous portions of the genome. Here, we show that a major proportion of such chimeric reads align to both the ‘Watson’ and ‘Crick’ strands of the reference genome. We refer to these as strand-split artifact reads (SSARs). This study provides a conceptual framework for the mechanistic basis of the genesis of SSARs and other chimeric artifacts along with supporting experimental evidence, which have led to approaches to reduce the levels of such artifacts. We demonstrate that one of these approaches, involving S1 nuclease-mediated removal of single-stranded fragments and overhangs, also reduces sequence bias, base error rates, and false positive detection of copy number and single nucleotide variants. Finally, we describe an analytical approach for quantifying SSARs from NGS data.

Published
2018

13. COMPREHENSIVE MOLECULAR CHARACTERIZATION OF CLEAR CELL RENAL CELL CARCINOMA

Author

Kelinda Tucker, Raju Kucherlapati, Ng Sam, John N. Weinstein, Lori Boice, Satish K. Tickoo, Saianand Balu, John C. Cheville, B. Arman Aksoy, Chip Stewart, Preethi H. Gunaratne, Martin L. Ferguson, Bogdan Czerniak, Christie Kovar, Theodore C. Goldstein, Mark E. Sherman, Juan M. Mosquera, Chris Sander, Yaron S.N. Butterfield, Leigh Anne Zach, Yiling Lu, Chandra Lebovitz, Gary Witkin, David Pot, Gordon Robertson, Richard A. Gibbs, James J. Hsieh, Benjamin P. Berman, Doug Voet, Kyle Chang, W. Marston Linehan, Margaret Morgan, Joan Pontius, Jodi Harr, Lihua Zhou, Joel S. Parker, David Van Den Berg, Michael B. Atkins, Sheila Reynolds, Petar Stojanov, Joel B. Nelson, Gordon B. Mills, Toni K. Choueiri, Weimin Xiao, Hye Jung E. Chun, Ronglai Shen, Rebecca Carlsen, Jennifer Brown, Tod D. Casasent, Sabina Signoretti, Jo Ellen Weaver, Phillip H. Lai, Dominique L. Berton, Patrick Plettner, Irina Ostrovnaya, Lisle E. Mose, Leslie Cope, Nils Gehlenborg, Heidi J. Sofia, Peter J. Park, Scott Morris, Hsin-Ta Wu, Fabio Vandin, Ranabir Guin, Daniel E. Carlin, Jacqueline E. Schein, Xi Liu, Nils Weinhold, Wandaliz Torres-Garcia, Cureline Olga Potapova, Daniel DiCara, Juok Cho, Steve Schumacher, Chris Wakefield, A. Rose Brannon, Susan M. Benton, Tom Bodenheimer, J. Todd Auman, Brenda Rabeno, Sharon M. Gorski, Eric E. Snyder, Divya Kalra, Brenda Ayala, Jiashan Zhang, Zhang Wei, Kyle Ellrott, Zhining Wang, Stacey Gabriel, Dominik Stoll, Daniel L. Rubin, W. Kimryn Rathmell, Eric Chuah, David Mallery, Tanja Davidsen, David Cogdell, Anders Jacobsen, John A. Demchok, Robert C. Onofrio, Anna Chu, Piotr A. Mieczkowski, Zhiyong Ding, Erin Curley, Johanna Gardner, Robert Worrell, Hailei Zhang, Jennifer C. Fisher, Donna M. Muzny, Rajiv Dhir, Walker Hale, Ari B. Kahn, Sheila Fisher, Giovanni Ciriello, Ken Burnett, Marco A. Marra, Wiam Bshara, Anil V. Parwani, Joshua M. Stuart, Richard Varhol, Kristin G. Ardlie, Han Yi, Lisa R. Trevino, Roy Tarnuzzer, Michael S. Noble, Erin Pleasance, Jesse Walsh, Leigh B. Thorne, Andy Chu, Peter W. Laird, Andrew J. Mungall, Rashmi N. Sanbhadti, Mark Backus, David A. Wheeler, Bradley A. Ozenberger, Jodi K. Maranchie, William Mallard, Jared R. Slobodan, Christine Czerwinski, Jireh Santibanez, Andrew J. Stout, Donghui Tan, Laura S. Schmidt, Junyuan Wu, Jianjiong Gao, Daniel J. Weisenberger, D. Neil Hayes, Scott Frazer, Alan P. Hoyle, Konstantin V. Fedosenko, Rehan Akbani, Todd Pihl, Rahul Vegesna, Lynda Chin, Shelley Alonso, Jeffrey G. Reid, Donna Morton, Cathy D. Vocke, R. Houston Thompson, Christopher C. Benz, Kenna R. Mills Shaw, Liming Yang, Carmelo Gaudioso, Nianxiang Zhang, Caleb F. Davis, Carrie Hirst, Shi Yan, Michael L. Blute, Barry S. Taylor, Mathew G. Soloway, Nina Thiessen, Paul T. Spellman, Deepak Srinivasan, Yongjun Zhao, Boris Reva, Wang Min, Stuart R. Jefferys, Benjamin J. Raphael, Nicholas J. Petrelli, Arash Shafiei, Lora Lewis, Eric Jonasch, David I. Heiman, Scot Waring, Richard A. Moore, Eric S. Lander, Evan O. Paull, Hoon Kim, Janae V. Simons, Stephen B. Baylin, Gad Getz, Stanley Girshik, Victor E. Reuter, Benjamin Gross, Ethan Cerami, Andrew D. Cherniack, Christine I. Smith, Christina Yau, Michael D. Topal, Peter Waltman, Jeff Boyd, Rameen Beroukhim, Angela Tam, Yingchun Liu, Peter A. Kigonya, Miruna Balasundaram, Maria J. Merino, David Haussler, Dinh Huyen, Elizabeth Buda, Michael S. Lawrence, Lin Pei, Charles M. Perou, Timothy J. Triche, Jessica Walton, Greg Eley, Tiffany Ting Liu, Joseph Paulauskis, Matthew Meyerson, Marc Ladanyi, Jaegil Kim, Katherine A. Hoadley, Huang Mei, Ilya Shmulevich, Robin J.N. Coope, Mary Iacocca, Natasja Wye, Adrian Ally, Mark A. Rubin, A. Ari Hakimi, Lori Huelsenbeck-Dill, Steven J.M. Jones, James Peterson, Mark A. Jensen, Barbara Tabak, Andrey Sivachenko, Julie Bergsten, John Eckman, Inanc Birol, Rohini Raman, Nipun Kakkar, Christina Liquori, Rileen Sinha, Dennis T. Maglinte, Lichtenstein Lee, Haiyan I. Li, William G. Kaelin, Anna K. Unruh, Noreen Dhalla, Candace Shelton, Roel G.W. Verhaak, Christopher J. Ricketts, Carrie Sougnez, Harsha Doddapaneni, Mark S. Guyer, Robert Penny, Michael F. Berger, Margi Sheth, Darlene Lee, Dimitra Tsavachidou, Chad J. Creighton, Prachi Kothiyal, Scott L. Carter, Michael Mayo, Zhu Jing, Kenneth Aldape, Corbin D. Jones, Moiz S. Bootwalla, Payal Sipahimalani, Martin Hirst, Sean P. Barletta, Kristian Cibulskis, Jerome Myers, Matthew C. Nicholls, Yidi J. Turman, Julien Baboud, Jeff Gentry, Carl Morrison, Gordon Saksena, Troy Shelton, Swapna Mahurkar, Robert A. Holt, Robert Sfeir, Shen Hui, Suzanne S. Fei, Christopher G. Wood, Candace Carter, S. Onur Sumer, Pheroze Tamboli, Yiming Zhu, Broad Institute of MIT and Harvard, Massachusetts Institute of Technology. Department of Biology, Getz, Gad Asher, Voet, Douglas, Lin, Pei, Chin, Lynda, and Lander, Eric Steven

Subjects
DNA Mutational Analysis, GRB10 Adaptor Protein, AMP-Activated Protein Kinases, Epigenesis, Genetic, PBRM1, Pentose Phosphate Pathway, Phosphatidylinositol 3-Kinases, RNA, Neoplasm, BAP1, Genome, Multidisciplinary, Genomics, Chromatin, Gene Expression Regulation, Neoplastic, DNA methylation, Signal transduction, Acetyl-CoA Carboxylase, Carcinoma, Renal Cell, Chromatin Assembly and Disassembly, Citric Acid Cycle, DNA Methylation, Gene Expression Profiling, Genome, Human, Histone-Lysine N-Methyltransferase, Humans, Metabolic Networks and Pathways, MicroRNAs, Mutation, PTEN Phosphohydrolase, Proto-Oncogene Proteins c-akt, Signal Transduction, Survival Analysis, Human, Biology, Article, Genetic, SETD2, microRNA, medicine, Neoplastic, Carcinoma, Renal Cell, medicine.disease, Clear cell renal cell carcinoma, Gene Expression Regulation, Cancer research, RNA, Neoplasm, Epigenesis
Abstract

Genetic changes underlying clear cell renal cell carcinoma (ccRCC) include alterations in genes controlling cellular oxygen sensing (for example, VHL) and the maintenance of chromatin states (for example, PBRM1). We surveyed more than 400 tumours using different genomic platforms and identified 19 significantly mutated genes. The PI(3)K/AKT pathway was recurrently mutated, suggesting this pathway as a potential therapeutic target. Widespread DNA hypomethylation was associated with mutation of the H3K36 methyltransferase SETD2, and integrative analysis suggested that mutations involving the SWI/SNF chromatin remodelling complex (PBRM1, ARID1A, SMARCA4) could have far-reaching effects on other pathways. Aggressive cancers demonstrated evidence of a metabolic shift, involving downregulation of genes involved in the TCA cycle, decreased AMPK and PTEN protein levels, upregulation of the pentose phosphate pathway and the glutamine transporter genes, increased acetyl-CoA carboxylase protein, and altered promoter methylation of miR-21 (also known as MIR21) and GRB10. Remodelling cellular metabolism thus constitutes a recurrent pattern in ccRCC that correlates with tumour stage and severity and offers new views on the opportunities for disease treatment.

Published
2013

14. Contaminant-induced current decline in capillary array electrophoresis

Author

Andre Marziali and Robin J.N. Coope

Subjects
Chromatography, Capillary action, Clinical Biochemistry, Electrophoresis, Capillary, DNA, Sequence Analysis, DNA, Electrolyte, Biology, Nucleic Acid Denaturation, Biochemistry, Analytical Chemistry, Anode, Equipment Failure Analysis, Electrophoresis, chemistry.chemical_compound, Depletion region, chemistry, Degradation (geology), Sample preparation
Abstract

High-throughput capillary array electrophoresis (CAE) instruments for DNA sequencing suffer to varying degrees from read length degradation associated with electrophoretic current decline and inhibition or delay in the arrival of fragments at the detector. This effect is known to be associated with residual amounts of large, slow-moving fragments of template or genomic DNA carried through from sample preparation and sequencing reactions. Here, we investigate the creation and expansion of an ionic depletion region induced by overloading the capillary with low-mobility DNA fragments, and the effect of growth of this region on electrophoresis run failure. Slow-moving fragments are analytically and experimentally shown to reduce the ionic concentration of the downstream electrolyte. With injection of large fragments beyond a threshold quantity, the anode-side boundary of the nascent depletion region begins to propagate toward the anode at a rate faster than the contaminant DNA migration. Under such conditions, the depletion region expands, the capillary current declines dramatically, and the electrophoresis run yields a short read length or fails completely.

Published
2005

15. Assembling the 20 Gb white spruce (Picea glauca) genome from whole-genome shotgun sequencing data

Author

Jörg Bohlmann, Alvin D. Yanchuk, Kermit Ritland, Benjamin P. Vandervalk, Inanc Birol, Jean Bousquet, Andrew J. Mungall, Steven J.M. Jones, John MacKay, Shaun D. Jackman, Macaire M.S. Yuen, Anthony Raymond, Carol Ritland, Dana Brand, Heather Kirk, Pawan Pandoh, Christopher I. Keeling, Richard A. Moore, Robin J.N. Coope, Yongjun Zhao, Greg Taylor, Brian Boyle, Barry Jaquish, and Stephen Pleasance

Subjects
Statistics and Probability, Genetics, Shotgun sequencing, Sequence analysis, fungi, Sequence assembly, Genomics, Computational biology, Biology, Genome Analysis, Original Papers, Biochemistry, Genome, DNA sequencing, Computer Science Applications, Giga, Evolution, Molecular, Computational Mathematics, Computational Theory and Mathematics, Picea, Molecular Biology, Genome, Plant, Illumina dye sequencing
Abstract

White spruce (Picea glauca) is a dominant conifer of the boreal forests of North America, and providing genomics resources for this commercially valuable tree will help improve forest management and conservation efforts. Sequencing and assembling the large and highly repetitive spruce genome though pushes the boundaries of the current technology. Here, we describe a whole-genome shotgun sequencing strategy using two Illumina sequencing platforms and an assembly approach using the ABySS software. We report a 20.8 giga base pairs draft genome in 4.9 million scaffolds, with a scaffold N50 of 20 356 bp. We demonstrate how recent improvements in the sequencing technology, especially increasing read lengths and paired end reads from longer fragments have a major impact on the assembly contiguity. We also note that scalable bioinformatics tools are instrumental in providing rapid draft assemblies. Availability: The Picea glauca genome sequencing and assembly data are available through NCBI (Accession#: ALWZ0100000000 PID: PRJNA83435). http://www.ncbi.nlm.nih.gov/bioproject/83435. Contact: ibirol@bcgsc.ca Supplementary information: Supplementary data are available at Bioinformatics online.

Published
2013

16. Comprehensive genomic characterization of squamous cell lung cancers

Author

Charles J. Vaske, Ying Du, Theodore C. Goldstein, Ping Yang, Yufeng Liu, Bryan Hernandez, Daniel R. Zerbino, Kenneth H. Buetow, Khurram Z. Khan, Semin Lee, Martin Peifer, Kristin G. Ardlie, James G. Herman, Sanja Dacic, Ashley Hill, Christopher Szeto, Jianjiong Gao, Singer Ma, Peng Chieh Chen, Carl F. Schaefer, David G. Beer, Kerstin David, Brent W. Zanke, Karen Mungall, Beverly Lee, Daniel DiCara, Kristen Rogers, Rui Jing, Christina Liquori, Carrie Sougnez, Ron Bose, Brian O'Connor, Piotr A. Mieczkowski, Scott L. Carter, Andy Chu, Peter W. Laird, David J. Kwiatkowski, R. Craig Cason, Marie Christine Aubry, Rileen Sinha, Dennis T. Maglinte, Chad J. Creighton, Howard H. Sussman, Jill M. Siegfried, Laura A.L. Dillon, Agnes Viale, Marco A. Marra, Stephen E. Schumacher, Dennis A. Wigle, Yongjun Zhao, Robert C. Onofrio, Heidi J. Sofia, Ranabir Guin, Lori Boice, Ling Li, Mark Backus, Pei Lin, Prachi Kothiyal, Jan F. Prins, Lauren Averett Byers, Haiyan I. Li, An He, Ka Ming Nip, Chang-Jiun Wu, Peter Dolina, James A. Robinson, Saianand Balu, Collisson E, Jinze Liu, Nicholas D. Socci, Erin Pleasance, Joan Pontius, Christina Yau, Eric E. Snyder, Shaowu Meng, Mei Huang, Aaron McKenna, Corbin D. Jones, Carl Morrison, Malcolm V. Brock, Chris Wakefield, Jared R. Slobodan, Ethan Cerami, Angela Tam, Jane Peterson, Michael D. Topal, Jacob M. Kaufman, Elena Helman, Richard T. Cheney, Dominik Stoll, Cristiane M. Ida, Dante Trusty, Peter S. Hammerman, Yevgeniy Antipin, D. Neil Hayes, Anders Jacobsen, Anna K. Unruh, Noreen Dhalla, Candace Shelton, Peter Waltman, Chris Sander, Zhining Wang, Derek Y. Chiang, Elizabeth J. Thomson, Vonn Walter, JoEllen Weaver, Elena Nemirovich-Danchenko, Jacqueline E. Schein, Bradley M. Broom, Sandra C. Tomaszek, Peter A. Kigonya, Tod D. Casasent, Ari B. Kahn, Joanne Yi, Kyle Ellrott, John M. S. Bartlett, Payal Sipahimalani, William D. Travis, Douglas Voet, Sean P. Barletta, Elizabeth Chun, J. Todd Auman, Ludmila Danilova, Katherine A. Hoadley, Marcin Imielinski, Ramaswamy Govindan, David P. Carbone, Leigh B. Thorne, David A. Wheeler, Carrie Hirst, Barbara Tabak, Sugy Kodeeswaran, Ijeoma A. Azodo, James Stephen Marron, Michael S. Noble, Jianjua John Zhang, Paul K. Paik, Deepak Srinivasan, Boris Reva, B. Arman Aksoy, Kristian Cibulskis, Douglas B. Flieder, Fei Pan, Daniel J. Weisenberger, Ronglai Shen, Jinhua Zhang, Nils Weinhold, Harman Sekhon, David Van Den Berg, Mark S. Guyer, Robert Penny, Hartmut Juhl, Marc Danie Nazaire, Yiqun Zhang, Eric A. Collisson, Robin J.N. Coope, Tom Bodenheimer, Richard Thorp, Junyuan Wu, Matthew Meyerson, Nguyen Phi Hung, Jerome Myers, Artem Sokolov, Yidi J. Turman, Thomas Muley, Stephen B. Baylin, Anisha Gulabani, A. Gordon Robertson, Lynda Chin, Eric Chuah, Richard Varhol, Margi Sheth, Janae V. Simons, Nils Gehlenborg, Tanja Davidsen, Psalm Haseley, Miruna Balasundaram, Olga Potapova, Spring Yingchun Liu, W. Kimryn Rathmell, Bizhan Bandarchi-Chamkhaleh, Wendy Winckler, David Mallery, Nicholas J. Petrelli, Nicole Todaro, Alex E. Lash, James Shin, Travis Brown, Igor Jurisica, Benjamin Gross, Hailei Zhang, Nikolaus Schultz, Kenna R. Mills Shaw, Nam Pho, William Pao, Darlene Lee, Zhen Fan, Troy Shelton, Yan Shi, Shelley Alonso, Carmelo Gaudioso, Peter B. Illei, Stuart R. Jefferys, Maureen F. Zakowski, Marian Rutledge, Bruce E. Johnson, Andrew J. Mungall, Eric S. Lander, Matthew G. Soloway, Michael Mayo, Christopher G. Maher, John V. Heymach, Lihua Zou, Dominique L. Berton, Nina Thiessen, Gary K. Scott, Anna L. Chu, Richard A. Hajek, Ming-Sound Tsao, Liming Yang, Qianxing Mo, Nguyen Van Bang, Martin Hirst, John Eckman, Erin Curley, Rajiv Dhir, Gad Getz, Stanley Girshik, Xuan Van Le, Jeff Boyd, Roman K. Thomas, Konstantin V. Fedosenko, Juok Cho, Alexei Protopopov, Nguyen Viet Tien, Lixing Yang, Laetitia Borsu, Steven J.M. Jones, Matthew D. Wilkerson, Mark Sherman, Andrew Crenshaw, Doug Voet, Elizabeth Buda, Jennifer Brown, Yaron S.N. Butterfield, Rehan Akbani, Todd Pihl, Ruibin Xi, Nianxiang Zhang, Jessica Walton, Ricardo Ramirez, Lisle E. Mose, Leslie Cope, Greg Eley, Mark A. Jensen, John N. Weinstein, Li Ding, Li-Wei Chang, Matthew C. Nicholls, Peter J. Park, Bui Duc Phu, Christopher R. Cabanski, Bernard Kohl, Julien Baboud, Joseph Paulauskis, David Pot, Gordon Robertson, Jingchun Zhu, John A. Demchok, Eunjung Lee, Giovanni Ciriello, Mary Iacocca, Gordon Saksena, Jesse Walsh, Yupu Liang, William K. Funkhouser, Rashmi N. Sanbhadti, Sam Ng, Venkatraman E. Seshan, Valerie W. Rusch, Robert A. Holt, Robert Sfeir, Jung E. Hye-Chun, Kai Wang, Helga Thorvaldsdottir, Huy V. Nguyen, Christopher Wilks, Brian Craft, Donghui Tan, David Haussler, Charles M. Perou, Timothy J. Triche, Christopher C. Benz, Scot Waring, Peggy Yena, Richard A. Moore, Darshan Singh, Andrew D. Cherniack, Rameen Beroukhim, Michael S. Lawrence, Xiaojia Ren, Stacey Gabriel, Martha Hatfield, Christine Czerwinski, Alan P. Hoyle, Marc Ladanyi, Joshua M. Stuart, Andrey Sivachenko, Jacqueline D. Palchik, Thomas Zeng, Inanc Birol, Rohini Raman, Ijeoma Azodo, Jianhua Zhang, Adam B. Olshen, Bradley A. Ozenberger, Angela Hadjipanayis, Sachet A. Shukla, Barry S. Taylor, John M. Greene, Jill P. Mesirov, Petar Stojanov, Raju Kucherlapati, Richard Corbett, Farhad Kosari, Martin L. Ferguson, Natasha Rekhtman, Keith A. Baggerly, Scott Morris, Brenda Rabeno, Massachusetts Institute of Technology. Department of Biology, Lander, Eric S., and Park, Peter J.

Subjects
Lung Neoplasms, Squamous Differentiation, DNA Mutational Analysis, Adenocarcinoma of Lung, Biology, Adenocarcinoma, Article, Phosphatidylinositol 3-Kinases, Gefitinib, Mutation Rate, CDKN2A, Carcinoma, medicine, Humans, Molecular Targeted Therapy, Lung cancer, Multidisciplinary, Genome, Human, Gene Expression Profiling, Genes, p16, Genomics, medicine.disease, Genes, p53, Gene expression profiling, Gene Expression Regulation, Neoplastic, Mutation, Cancer research, Carcinoma, Squamous Cell, Gene Deletion, medicine.drug, Necitumumab, Signal Transduction
Abstract

Lung squamous cell carcinoma is a common type of lung cancer, causing approximately 400,000 deaths per year worldwide. Genomic alterations in squamous cell lung cancers have not been comprehensively characterized, and no molecularly targeted agents have been specifically developed for its treatment. As part of The Cancer Genome Atlas, here we profile 178 lung squamous cell carcinomas to provide a comprehensive landscape of genomic and epigenomic alterations. We show that the tumour type is characterized by complex genomic alterations, with a mean of 360 exonic mutations, 165 genomic rearrangements, and 323 segments of copy number alteration per tumour. We find statistically recurrent mutations in 11 genes, including mutation of TP53 in nearly all specimens. Previously unreported loss-of-function mutations are seen in the HLA-A class I major histocompatibility gene. Significantly altered pathways included NFE2L2 and KEAP1 in 34%, squamous differentiation genes in 44%, phosphatidylinositol-3-OH kinase pathway genes in 47%, and CDKN2A and RB1 in 72% of tumours. We identified a potential therapeutic target in most tumours, offering new avenues of investigation for the treatment of squamous cell lung cancers., National Institutes of Health (U.S.) (Grant U24 CA126561), National Institutes of Health (U.S.) (Grant U24 CA126551), National Institutes of Health (U.S.) (Grant U24 CA126554), National Institutes of Health (U.S.) (Grant U24 CA126543), National Institutes of Health (U.S.) (Grant U24 CA126546), National Institutes of Health (U.S.) (Grant U24 CA126563), National Institutes of Health (U.S.) (Grant U24 CA126544), National Institutes of Health (U.S.) (Grant U24 CA143845), National Institutes of Health (U.S.) (Grant U24 CA143858), National Institutes of Health (U.S.) (Grant U24 CA144025), National Institutes of Health (U.S.) (Grant U24 CA143882), National Institutes of Health (U.S.) (Grant U24 CA143866), National Institutes of Health (U.S.) (Grant U24 CA143867), National Institutes of Health (U.S.) (Grant U24 CA143848), National Institutes of Health (U.S.) (Grant U24 CA143840), National Institutes of Health (U.S.) (Grant U24 CA143835), National Institutes of Health (U.S.) (Grant U24 CA143799), National Institutes of Health (U.S.) (Grant U24 CA143883), National Institutes of Health (U.S.) (Grant U24 CA143843), National Institutes of Health (U.S.) (Grant U54 HG003067), National Institutes of Health (U.S.) (Grant U54 HG003079), National Institutes of Health (U.S.) (Grant U54 HG003273)

Published
2012

17. Comprehensive molecular characterization of human colon and rectal cancer

Author

Donghui Tan, Nils Gehlenborg, Robert S. Fulton, Pat Swanson, Pei Lin, Chang-Jiun Wu, Piotr A. Mieczkowski, David Haussler, Marco A. Marra, Stephen E. Schumacher, Bernard Kohl, Jingchun Zhu, Lucinda Fulton, Charles M. Perou, Timothy J. Triche, Madhumati Gundapuneni, Mark Backus, Eve Shinbrot, Yonghong Xiao, Xuan Van Le, Liming Yang, Gad Getz, Stanley Girshik, Jessica Walton, Barbara Tabak, Greg Eley, Brian O'Connor, Larissa K. Temple, Saianand Balu, Eric A. Collisson, Tanja Davidsen, Elizabeth Buda, Janae V. Simons, Anisha Gulabani, Joseph Willis, Tod D. Casasent, Scott Morris, Doug Voat, Jireh Santibanez, Jennifer Drummond, Li Ding, Nicholas J. Petrelli, Andrew J. Mungall, Michael Mayo, Aaron D. Black, Gerald C. Chu, Elizabeth N. Medina, Huy V. Nguyen, Aaron E. Cozen, Yongjun Zhao, Hui Shen, Christopher Szeto, Brenda Rabeno, Martin Hirst, Bogumil Kaczkowski, Lisle E. Mose, Lora Lewis, Brian Craft, Joseph Paulauskis, Ari B. Kahn, Andy Chu, Peter W. Laird, Benjamin Gross, Matthew D. Wilkerson, Raju Kucherlapati, Matthew C. Nicholls, David Van Den Berg, Vesteinn Thorsson, Richard W. Park, Ethan Cerami, David A. Wheeler, Laura A.L. Dillon, Angela Tam, Julien Baboud, Kim D. Delehaunty, Katherine A. Hoadley, Ranabir Guin, Donna M. Muzny, Gordon Saksena, Shaowu Meng, Richard Kreisberg, Kenneth H. Buetow, Rajiv Dhir, Inanc Birol, Timo Erkkilä, Martin L. Ferguson, Robert A. Holt, Elaine R. Mardis, Aaron McKenna, Rohini Raman, Robert Sfeir, Mark Sherman, Andrew Crenshaw, J. Zachary Sanborn, Spring Yingchun Liu, Yuan Qing Wu, Jane Peterson, Eric E. Snyder, Lisa Iype, John N. Weinstein, Helga Thorvaldsdottir, Adam J. Bass, Dominik Stoll, Brady Bernard, Steven J.M. Jones, Peter Dolina, Julie M. Gastier-Foster, Jared R. Slobodan, Mark A. Jensen, Jacqueline E. Schein, Christie Kovar, Anders Jacobsen, Stephen C. Benz, J. Todd Auman, Juinhua Zhang, Peter Fielding, Paul T. Spellman, Jacqueline D. Palchik, Jay Bowen, Thomas Zeng, Douglas Voet, Arnulf Dörner, Joshua M. Stuart, Ryan Demeter, Theodore C. Goldstein, Keith A. Baggerly, Jorma J. de Ronde, Deepak Srinivasan, Boris Reva, Robert E. Pyatt, Andrew Kaufman, Timothy A. Chan, Alexei Protopopov, William G. Richards, Daniel R. Zerbino, Brenda Ayala, Martin R. Weiser, Psalm Haseley, Margaret Morgan, Mary Iacocca, Thomas Robinson, Chad J. Creighton, Dominique L. Berton, Da Yang, Peng Chieh Chen, Carl F. Schaefer, Peter White, Fred Denstman, Giovanni Ciriello, Matthew N. Bainbridge, Heidi J. Sofia, Irene Newsham, Jill P. Mesirov, Ling Li, Benjamin P. Berman, Daniel J. Weisenberger, Garrett M. Nash, Jason Walker, Nina Thiessen, Narayanan Sathiamoorthy, James A. Robinson, Petar Stojanov, Todd Wylie, Derek Y. Chiang, Kristin G. Ardlie, Jianjiong Gao, Lisa Wise, Bradley A. Ozenberger, Jeffrey G. Reid, Angela Hadjipanayis, Sachet A. Shukla, Barry S. Taylor, John M. Greene, Eric Chuah, Richard Varhol, Lisa R. Trevino, Charles J. Vaske, Ying Du, Arthur P. Goldberg, Rui Jing, Jon Whitmore, Joan Pontius, Yevgeniy Antipin, Kyle Ellrott, Nilsa C. Ramirez, Tom Bodenheimer, Junyuan Wu, Lynda Chin, Scott L. Carter, Hailei Zhang, Ryan Bressler, Adam Norberg, Stacey Gabriel, Martha Hatfield, Jonathan G. Seidman, Corbin D. Jones, Huyen Dinh, D. Neil Hayes, Christine Czerwinski, Gerald R. Fowler, Mark S. Guyer, Robert Penny, Alan P. Hoyle, Hartmut Juhl, Catrina Fronick, Margi Sheth, Christopher C. Benz, Scot Waring, Peggy Yena, Richard A. Moore, Darshan Singh, Toshinori Hinoue, Yaron S.N. Butterfield, Andrew D. Cherniack, Maria C. Mariano, Rameen Beroukhim, Michael S. Lawrence, Xiaojia Ren, Marc Ladanyi, Anna K. Unruh, Noreen Dhalla, Candace Shelton, Gary Witkin, Andrey Sivachenko, David Pot, Michael J. Zinner, Richard Thorp, Jan F. Prins, Eunjung Lee, A. Gordon Robertson, Wendy Winckler, Efsevia Vakiani, Chris Wakefield, Alex H. Ramos, Semin Lee, Zhining Wang, Sam Ng, Lihua Zhou, Christina Liquori, Rileen Sinha, Dennis T. Maglinte, Michael S. Noble, Haiyan I. Li, B. Arman Aksoy, Preethi H. Gunaratne, Michael Meyers, Daniel C. Koboldt, Lawrence A. Donehower, Darlene Lee, Jake Lin, Gary K. Scott, Hye Jung E. Chun, Sheila Reynolds, Anna L. Chu, Rehan Akbani, Todd Pihl, Ruibin Xi, Charles S. Fuchs, Nianxiang Zhang, Stanley R. Hamilton, Bradley M. Broom, Wei Zhang, Chris Sander, Marc Danie Nazaire, Carrie Hirst, Stephen B. Baylin, Joel E. Tepper, Kyle Chang, Miruna Balasundaram, Jen Brown, Yan Shi, Matthew G. Soloway, Richard A. Gibbs, Richard K. Wilson, Peter J. Park, Zhaoshi Zeng, John A. Demchok, Jesse Walsh, Rashmi N. Sanbhadti, Troy Shelton, Lixing Yang, Prachi Kothiyal, Monica M. Bertagnolli, Sean P. Barletta, Kristian Cibulskis, Yidi J. Turman, Nikolaus Schultz, Min Wang, Shelley Alonso, Carsten Zornig, P. Paty, Elizabeth J. Thomson, Peter A. Kigonya, Fei Pan, Yuexin Liu, Matthew Meyerson, Kenna R. Mills Shaw, Nam Pho, Stuart R. Jefferys, Daniel DiCara, Robert C. Onofrio, Erin Pleasance, Eric S. Lander, David J. Dooling, Christina Yau, Michael D. Topal, David B. Solit, Christopher Wilks, Ilya Shmulevich, Robin J.N. Coope, Ronglai Shen, Jose G. Guillem, R. Craig Cason, Massachusetts Institute of Technology. Department of Biology, and Lander, Eric S.

Subjects
DNA Copy Number Variations, Colorectal cancer, Biology, medicine.disease_cause, MLH1, Polymorphism, Single Nucleotide, 03 medical and health sciences, 0302 clinical medicine, Mutation Rate, microRNA, medicine, Humans, Exome, 030304 developmental biology, 0303 health sciences, Multidisciplinary, POLD1, Rectal Neoplasms, Gene Expression Profiling, Microsatellite instability, Sequence Analysis, DNA, DNA Methylation, medicine.disease, 3. Good health, 030220 oncology & carcinogenesis, DNA methylation, Colonic Neoplasms, Mutation, Cancer research, KRAS
Abstract

To characterize somatic alterations in colorectal carcinoma, we conducted a genome-scale analysis of 276 samples, analysing exome sequence, DNA copy number, promoter methylation and messenger RNA and microRNA expression. A subset of these samples (97) underwent low-depth-of-coverage whole-genome sequencing. In total, 16% of colorectal carcinomas were found to be hypermutated: three-quarters of these had the expected high microsatellite instability, usually with hypermethylation and MLH1 silencing, and one-quarter had somatic mismatch-repair gene and polymerase ε (POLE) mutations. Excluding the hypermutated cancers, colon and rectum cancers were found to have considerably similar patterns of genomic alteration. Twenty-four genes were significantly mutated, and in addition to the expected APC, TP53, SMAD4, PIK3CA and KRAS mutations, we found frequent mutations in ARID1A, SOX9 and FAM123B. Recurrent copy-number alterations include potentially drug-targetable amplifications of ERBB2 and newly discovered amplification of IGF2. Recurrent chromosomal translocations include the fusion of NAV2 and WNT pathway member TCF7L1. Integrative analyses suggest new markers for aggressive colorectal carcinoma and an important role for MYC-directed transcriptional activation and repression., National Institutes of Health (U.S.) (Grant U24CA143799), National Institutes of Health (U.S.) (Grant U24CA143835), National Institutes of Health (U.S.) (Grant U24CA143840), National Institutes of Health (U.S.) (Grant U24CA143843), National Institutes of Health (U.S.) (Grant U24CA143845), National Institutes of Health (U.S.) (Grant U24CA143848), National Institutes of Health (U.S.) (Grant U24CA143858), National Institutes of Health (U.S.) (Grant U24CA143866), National Institutes of Health (U.S.) (Grant U24CA143867), National Institutes of Health (U.S.) (Grant U24CA143882), National Institutes of Health (U.S.) (Grant U24CA143883), National Institutes of Health (U.S.) (Grant U24CA144025), National Institutes of Health (U.S.) (Grant U54HG003067), National Institutes of Health (U.S.) (Grant U54HG003079), National Institutes of Health (U.S.) (Grant U54HG003273)

Published
2011

18. Modulation of retroreflection by controlled frustration of total internal reflection

Author

Robin J.N. Coope, Lorne A. Whitehead, and Andrzej Kotlicki

Subjects
Total internal reflection, Materials science, business.industry, Materials Science (miscellaneous), media_common.quotation_subject, Frustration, Surface finish, Legibility, Industrial and Manufacturing Engineering, Retroreflector, law.invention, Optics, Modulation, law, Business and International Management, Manufacturing methods, business, media_common, Light-emitting diode
Abstract

Retroreflective images are useful in outdoor application for which high legibility is required both during the day and in response to vehicular illumination. To date, all variable message retroreflective images have employed mechanical shutters as the switching mechanism. As an alternative, we propose a method for switching the total internal reflection effect used in retroreflectors by means of pneumatic actuation of surface treated polydimethylsiloxane gel. This approach is both effective and compatible with current large-scale manufacturing methods.

Published
2002

19. Comprehensive molecular portraits of human breast tumours

Author

Julie M. Gastier-Foster, Nguyen Van Bang, Christopher Szeto, Daoud Meerzaman, Nguyen Viet Tien, Richard K. Wilson, Jennifer Brown, Singer Ma, Andrew H. Beck, Sam Ng, Phillip H. Lai, Peter J. Park, Khurram Z. Khan, Gordon B. Mills, Joel S. Parker, Li Ding, Ying Hu, Jill P. Mesirov, Rebecca Carlsen, Kevin P. White, Benjamin P. Berman, Michael C. Adams, Laura A.L. Dillon, Jake Lin, Giovanni Ciriello, Simeen Malik, Moiz S. Bootwalla, Sheila Reynolds, Petar Stojanov, B. Arman Aksoy, Jerry Usary, Mei Huang, Andrzej Mackiewicz, Prachi Kothiyal, Keith A. Baggerly, Hann Hsiang Chao, Timo Erkkilä, Elaine R. Mardis, Nils Gehlenborg, Bradley M. Broom, Tara M. Lichtenberg, Jeff Gentry, Payal Sipahimalani, Chris Wakefield, Zhining Wang, Anna Chu, Konstanty Korski, Michael S. Noble, Lawrence A. Donehower, Pavana Anur, Janita Thusberg, Rohit Bhargava, Chris Sander, Lori Boice, Juok Cho, Charles Saller, Sophie C. Egea, Marc Danie Nazaire, Heather Schmidt, Bui Duc Phu, Hye Jung E. Chun, Bradley A. Ozenberger, Robert S. Fulton, Carrie Hirst, Stephen B. Baylin, Miruna Balasundaram, Peter White, Fergus J. Couch, Saianand Balu, Christina Yau, Yevgeniy Antipin, Jacek J. Brzeziński, Rehan Akbani, Todd Pihl, Ari B. Kahn, Nianxiang Zhang, Sean P. Barletta, Mary Iacocca, Kelly Daily, Wiam Bshara, Marc Ladanyi, Michael D. Topal, Huy Nguyen, Theodore C. Goldstein, Tari A. King, Bernard Kohl, Jingchun Zhu, Wiktoria Maria Suchorska, Xuan Van Le, Wei Zhang, Yan Shi, Marta Bogusz-Czerniewicz, Barry S. Taylor, Li-Wei Chang, Matthew C. Nicholls, Julien Baboud, Honorata Tatka, Doug Voet, Vesteinn Thorsson, Richard W. Park, Aaron D. Black, Pawel Murawa, Leonid Kvecher, Raju Kucherlapati, Colleen Mitchell, Wei Zhao, Leigh B. Thorne, Artem Sokolov, Modesto Patangan, Yidi J. Turman, Teresa R. Tabler, Kyle Ellrott, Yaron S.N. Butterfield, Gordon Saksena, Ronglai Shen, Yaqin Chen, Olga Voronina, Candace Carter, Yiling Lu, Cynthia McAllister, Thomas Stricker, Chunqing Luo, Dominique L. Berton, Thomas Barr, Robert A. Holt, Christopher Wilks, David Van Den Berg, Robert Sfeir, Ilya Shmulevich, Ranabir Guin, Nilsa C. Ramirez, Hollie A. Harper, John A. Demchok, Matthew J. Ellis, David Haussler, Katherine A. Hoadley, Eric Chuah, Richard J. Mural, Charles M. Perou, Timothy J. Triche, Steven J.M. Jones, Mark A. Jensen, Jeffrey R. Marks, Hanna Perz, Rashmi N. Sanbhadti, Robin J.N. Coope, Brian Craft, Andy Chu, Peter W. Laird, Eric E. Snyder, Chunhua Yan, Martin L. Ferguson, Junyuan Wu, Richard Varhol, Daniel J. Weisenberger, Yongjun Zhao, Ewa Leporowska, Ashley Hill, Katie Tarvin, M. Teresiak, David Pot, Nguyen Phi Hung, Helga Thorvaldsdottir, Erik Zmuda, Spring Yingchun Liu, Melissa Hart-Kothari, Joshua M. Stuart, Caroline Larson, Erin Pleasance, Nikolaus Schultz, Matthew Ibbs, Hubert Stoppler, Joelle Kalicki-Veizer, Andrey Sivachenko, Christopher C. Benz, Dawid Murawa, Swapna Mahurkar, Nicholas J. Petrelli, Lynda Chin, Juinhua Zhang, Pei Lin, Michael Mayo, Wilma L. Lingle, Julian Malicki, Robin Brookens, Ethan Cerami, Angela Tam, Shelley Alonso, Carmelo Gaudioso, Dominik Stoll, Anders Jacobsen, Stephen C. Benz, Mark S. Guyer, Wendy Winckler, Roel R.G. Verhaak, Chang-Jiun Wu, Raktim Sinha, Xiaping He, Nina Thiessen, Craig D. Shriver, Kenna R. Mills Shaw, Heidi J. Sofia, Martin Hirst, Stuart R. Jefferys, Robert Penny, Adam Brufsky, Kristen M. Leraas, Joshua F. McMichael, Brenda Rabeno, Inanc Birol, David J. Dooling, Peggy Yena, Richard A. Moore, Andrew D. Cherniack, Lucinda Fulton, Jessica K. Booker, Lihua Zou, Rileen Sinha, Michael D. Iglesia, Dennis T. Maglinte, Rohini Raman, Evan O. Paull, Rameen Beroukhim, Oleg Dolzhansky, Grace O. Silva, Jiashan Zhang, Witold Kycler, Janae V. Simons, Anisha Gulabani, Michael S. Lawrence, Peter Fielding, Huynh Quyet Thang, Peter A. Kigonya, Myra M. George, Jay Bowen, Haiyan I. Li, Robert E. Pyatt, Margi Sheth, Stacey Gabriel, Ana M. Gonzalez-Angulo, Hui Shen, Andrew J. Mungall, Carmen Gomez-Fernandez, Liming Yang, Hai Hu, Radoslaw Łaźniak, Olufunmilayo I. Olopade, Christine Czerwinski, Richard A. Hajek, Michael D. McLellan, Arash Shafiei, Matthew Meyerson, Gad Getz, Stanley Girshik, Cheng Fan, Shuying Liu, Olga Potapova, Alan P. Hoyle, Mia Grifford, Daniel C. Koboldt, Jacqueline D. Palchik, Jessica Walton, Greg Eley, Jamie Leigh Campbell, Thomas Zeng, Mikhail Abramov, Benjamin Gross, Brenda Deyarmin, Maciej Wiznerowicz, Natasja Wye, Ron Bose, Darlene Lee, Carl Morrison, Albert J. Kovatich, Andrew Crenshaw, Jessica Frick, John N. Weinstein, Adrian Ally, Nam H. Pho, Brady Bernard, Scott L. Carter, Gary K. Scott, Steven E. Schumacher, Barbara Tabak, D. Neil Hayes, Robert C. Onofrio, Sean D. Mooney, Mary D. Dyer, Mark Gerken, Erin Curley, Rajiv Dhir, Anna K. Unruh, Noreen Dhalla, Candace Shelton, Kevin R. Coombes, Richard Thorp, George E. Sandusky, A. Gordon Robertson, Marco A. Marra, Roy Tarnuzzer, Mark Backus, Aleix Prat, Kristin G. Ardlie, Daniel Di Cara, Richard Kreisberg, Kenneth H. Buetow, Jacqueline E. Schein, J. Todd Auman, Jianjiong Gao, Lisa Wise, Ling Li, James A. Robinson, Jonathan S. Berg, Tod D. Casasent, James N. Ingle, Brenda Ayala, Xiaolong Meng, Boris Reva, Rui Jing, Mark D. Pegram, Arkadiusz Spychała, Joan Pontius, Jeffrey A. Hooke, Daniel E. Carlin, Nils Weinhold, Jared R. Slobodan, Tom Bodenheimer, Wenbin Liu, Christopher K. Wong, W. Kimryn Rathmell, David Mallery, Paul T. Spellman, Hailei Zhang, Ryan Bressler, Deepak Srinivasan, Lisle E. Mose, Bryan Hernandez, Stella Somiari, Chad J. Creighton, Howard H. Sussman, Frederic Waldman, Matthew G. Soloway, and Universitat de Barcelona

Subjects
Proteomics, Oncologia, DNA Mutational Analysis, Genes, BRCA1, Retinoblastoma Protein, Phosphatidylinositol 3-Kinases, 0302 clinical medicine, Breast cancer, Exome, RNA, Neoplasm, Exome sequencing, Oligonucleotide Array Sequence Analysis, Ovarian Neoplasms, Genetics, 0303 health sciences, Multidisciplinary, Triple Negative Breast Neoplasms, Genomics, 3. Good health, Gene Expression Regulation, Neoplastic, Receptors, Estrogen, Oncology, 030220 oncology & carcinogenesis, Female, DNA Copy Number Variations, Class I Phosphatidylinositol 3-Kinases, Protein Array Analysis, MAP Kinase Kinase Kinase 1, Breast Neoplasms, GATA3 Transcription Factor, Biology, Article, Càncer de mama, Genetic Heterogeneity, 03 medical and health sciences, medicine, Humans, RNA, Messenger, 030304 developmental biology, MicroRNA sequencing, Genome, Human, Genetic heterogeneity, Gene Expression Profiling, Cancer, DNA Methylation, Genes, erbB-2, Genes, p53, medicine.disease, Claudin-Low, Expressió gènica, MicroRNAs, Genòmica, Mutation, Gene expression, Genes, Neoplasm
Abstract

We analysed primary breast cancers by genomic DNA copy number arrays, DNA methylation, exome sequencing, messenger RNA arrays, microRNA sequencing and reverse-phase protein arrays. Our ability to integrate information across platforms provided key insights into previously defined gene expression subtypes and demonstrated the existence of four main breast cancer classes when combining data from five platforms, each of which shows significant molecular heterogeneity. Somatic mutations in only three genes (TP53, PIK3CA and GATA3) occurred at >10% incidence across all breast cancers; however, there were numerous subtype-associated and novel gene mutations including the enrichment of specific mutations in GATA3, PIK3CA and MAP3K1 with the luminal A subtype. We identified two novel protein-expression-defined subgroups, possibly produced by stromal/microenvironmental elements, and integrated analyses identified specific signalling pathways dominant in each molecular subtype including a HER2/phosphorylated HER2/EGFR/phosphorylated EGFR signature within the HER2-enriched expression subtype. Comparison of basal-like breast tumours with high-grade serous ovarian tumours showed many molecular commonalities, indicating a related aetiology and similar therapeutic opportunities. The biological finding of the four main breast cancer subtypes caused by different subsets of genetic and epigenetic abnormalities raises the hypothesis that much of the clinically observable plasticity and heterogeneity occurs within, and not across, these major biological subtypes of breast cancer.

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