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Construction of a human cell landscape at single-cell level 期刊论文
NATURE, 2020, 581 (7808) : 303-+
作者:  Han, Yan;  Reyes, Alexis A.;  Malik, Sara;  He, Yuan
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/03

Single-cell analysis is a valuable tool for dissecting cellular heterogeneity in complex systems(1). However, a comprehensive single-cell atlas has not been achieved for humans. Here we use single-cell mRNA sequencing to determine the cell-type composition of all major human organs and construct a scheme for the human cell landscape (HCL). We have uncovered a single-cell hierarchy for many tissues that have not been well characterized. We established a '  single-cell HCL analysis'  pipeline that helps to define human cell identity. Finally, we performed a single-cell comparative analysis of landscapes from human and mouse to identify conserved genetic networks. We found that stem and progenitor cells exhibit strong transcriptomic stochasticity, whereas differentiated cells are more distinct. Our results provide a useful resource for the study of human biology.


Single-cell RNA sequencing is used to generate a dataset covering all major human organs in both adult and fetal stages, enabling comparison with similar datasets for mouse tissues.


  
Genomic basis for RNA alterations in cancer 期刊论文
NATURE, 2020, 578 (7793) : 129-+
作者:  Petitprez, Florent;  39;han
收藏  |  浏览/下载:16/0  |  提交时间:2020/07/03

Transcript alterations often result from somatic changes in cancer genomes(1). Various forms of RNA alterations have been described in cancer, including overexpression(2), altered splicing(3) and gene fusions(4)  however, it is difficult to attribute these to underlying genomic changes owing to heterogeneity among patients and tumour types, and the relatively small cohorts of patients for whom samples have been analysed by both transcriptome and whole-genome sequencing. Here we present, to our knowledge, the most comprehensive catalogue of cancer-associated gene alterations to date, obtained by characterizing tumour transcriptomes from 1,188 donors of the Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium of the International Cancer Genome Consortium (ICGC) and The Cancer Genome Atlas (TCGA)(5). Using matched whole-genome sequencing data, we associated several categories of RNA alterations with germline and somatic DNA alterations, and identified probable genetic mechanisms. Somatic copy-number alterations were the major drivers of variations in total gene and allele-specific expression. We identified 649 associations of somatic single-nucleotide variants with gene expression in cis, of which 68.4% involved associations with flanking non-coding regions of the gene. We found 1,900 splicing alterations associated with somatic mutations, including the formation of exons within introns in proximity to Alu elements. In addition, 82% of gene fusions were associated with structural variants, including 75 of a new class, termed '  bridged'  fusions, in which a third genomic location bridges two genes. We observed transcriptomic alteration signatures that differ between cancer types and have associations with variations in DNA mutational signatures. This compendium of RNA alterations in the genomic context provides a rich resource for identifying genes and mechanisms that are functionally implicated in cancer.


  
Sources of PM2.5 at an urban-industrial Mediterranean city, Marseille (France): Application of the ME-2 solver to inorganic and organic markers 期刊论文
ATMOSPHERIC RESEARCH, 2018, 214: 263-274
作者:  Salameh, D.;  Pey, J.;  Bozzetti, C.;  El Haddad, I;  Detournay, A.;  Sylvestre, A.;  Canonaco, F.;  Armengaud, A.;  Piga, D.;  Robin, D.;  Prevot, A. S. H.;  Jaffrezo, J-L;  Wortham, H.;  Marchand, N.
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
Fine particulate matter (PM2.5)  Comprehensive chemical speciation  Source apportionment  Constrained PMF analysis  Biomass burning  Fossil fuel combustion  Particulate pollution episodes  
Using Net-Zero Energy Projects to Enable Sustainable Economic Redevelopment at the Former Brunswick Air Naval Base 科技报告
来源:US Department of Energy (DOE). 出版年: 2011
作者:  Marzouk, Youssef M. (Massachusetts Institute of Technology, Cambridge, MA);  van Bloemen Waanders, Bart Gustaaf (Sandia National Laboratories, Albuquerque NM);  Parno, Matthew (Massachusetts Institute of Technology, Cambridge, MA);  Ray, Jaideep;  Lefantzi, S
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/05
NREL  ENVIRONMENTAL PROTECTION AGENCY  EPA  BRUNSWICK  BRUNSWICK LANDING  NET-ZERO ENERGY  RENEWABLE ENERGY  COMPREHENSIVE ANALYSIS  SOLAR  PHOTOVOLTAIC  HOT WATER  HEATING  WIND TURBINE  FUEL CELLS  MICRO GAS TURBINES  BIOMASS COMBINED HEAT AND POWER  GE