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Array study discovery-driven Where is the hypothesis ?

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Presentation on theme: "Array study discovery-driven Where is the hypothesis ?"— Presentation transcript:

1 Array study discovery-driven Where is the hypothesis ?

2 Cell, Vol. 104, 333–339, 2001

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4  Generation of Biological Theme by Gene Ontology  Pathway - a direct guess  Correlation to other gene list  Co-transcription control hypothesis - a wild guess

5 Gene List (expression) Protein-protein Interaction Function Association GO Pathway MAPPFinder/GoMiner GSCope/DAVID GenMAPP Osprey GSCope DAVID GSCope PathBlazer

6 Generation of Biological Theme by Gene Ontology

7 Gene Ontology Biological Process Molecular Function Cellular Localization

8 Nature Genetics Vol 25, p25

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11 http://www.geneontology.org/

12 http://cgap.nci.nih.gov/Genes/GOBrowser

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15 http://etbsun2.nlm.nih.gov:8000/perl/gennav.pl

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17  Data ‧經 Drug A 刺激後的 B 細胞於 4 、 8 、 10 ‧經 Drug A 刺激後的 B 細胞於 4 、 8 、 10 小時後分別進行生物晶片分析 小時後分別進行生物晶片分析 (4/0 、 8/0 、 10/0) (4/0 、 8/0 、 10/0) ‧ RNA Dye ‧ RNA Dye Drug Cy3(635nm) Drug Cy3(635nm) Control Cy5(532nm) Control Cy5(532nm)

18 Gene list Gene list Drug A 4 hr /0 hr Drug A 4 hr /0 hr Drug A8 hr/0 hr Drug A8 hr/0 hr Drug A 10 hr /0 hr Drug A 10 hr /0 hr  Data Analysis > 2 & < 0.5

19 DAVID─GO 、 KEGG Pathway http://apps1.niaid.nih.gov/david/

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24 MappFinder http://www.genmapp.org/

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26 http://discover.nci.nih.gov/gominer/

27 GoMiner

28 GoMiner

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32 Pathway - a direct guess

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38 Ex. Drug A 4/0

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40 ‧ DAVID ─ Pathway (Total Gene) ‧ GenMapp ─  Results Total input Gene : 1071 Total input Gene : 1000

41 Correlation to other gene list

42 Lamb et al., Cell, Vol. 114, 323–334 (2003) http://www-genome.wi.mit.edu/cgi-bin/cancer/datasets.cgi

43 21 genes induced by cyclin D1 & its mutant in MCF-7 human mammary epithelial cells

44 Expression profiles from 190 primary human tumors-search for genes significantly correlated with the level of cyclin D1

45 C/EBP 

46 Promoter Analysis

47 Co-transcription control hypothesis - a wild guess

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49 Strategy for expression array-based comparative promoter analysis Werner T. Mamm Genome 10(2):168-75 (1999)

50 human RANTES/CCL5 promoter

51 共同調控序列 共同調控基因 A B C 老鼠基因體搜尋過濾 胃癌淋巴轉移晶片研究 結果 -9 genes

52 RT-PCR 可能共同調控基因 D E F 基因晶片結果 -36 genes 人類基因體搜尋 基因晶片結果 -30,000 genes New Hypothesis

53 Gene List (expression) Protein-protein Interaction Function Association GO Pathway MAPPFinder/GoMiner GSCope/DAVID GenMAPP Osprey GSCope DAVID GSCope PathBlazer


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