The rationale of this project is to develop a method to monitor the expression levels of a large number of genes in various experimental conditions and to understand global changes of gene expression patterns in development and aging. The systematic analysis of expression patterns of a large number of genes is rapidly becoming the method of choice for many laboratories to understand biological systems. Accordingly, the demand for high quality cDNA libraries and cDNA microarrays is increasing. The goals of this research project are to collect mouse cDNA clones and prepare cDNA microarrays containing as many mouse genes as possible. During this period, we have assembled a 15,000 unique gene set from mouse, which consists of 2132 genes from E7.5 extraembryonic tissue cDNA library, 893 genes from E7.5 embryonic tissue cDNA library, 7692 genes from preimplantation cDNA libraries (unfertilized eggs, fertilized eggs, 2-cell, 4-cell, 8-cell, 16-cell embryos and blastocysts), and 4620 genes from E12.5 mesonephros and newborn ovary cDNA libraries. These cDNA clones were resequenced to verify clone identities and to recover more sequence information from individual cDNA clones. This """"""""NIA Mouse 15K cDNA Clone Set"""""""" has been freely distributed to the scientific community for cDNA microarray work and other fundamental research. An additional 60,000 ESTs from various mouse organs/tissues and stem cells have also been generated and are being assembled into a supplementary 11K set. We have recently developed a method to isolate long-insert cDNA clones more efficiently from submicrogram quantities of total RNA. Future libraries will be made by this method. Future plans include the expansion of the set of unique genes by sequencing more cDNA clones from various embryonic collections, and the preparation and use of cDNA microarrays from the expanded set of unique genes.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Intramural Research (Z01)
Project #
1Z01AG000656-03
Application #
6508447
Study Section
(LG)
Project Start
Project End
Budget Start
Budget End
Support Year
3
Fiscal Year
2001
Total Cost
Indirect Cost
Name
Aging
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Sharov, Alexei A (2017) Composite Agency: Semiotics of Modularity and Guiding Interactions. Biosemiotics 10:157-178
Sharov, Alexei A (2016) Coenzyme world model of the origin of life. Biosystems 144:8-17
Sharov, Alexei A (2016) Evolutionary biosemiotics and multilevel construction networks. Biosemiotics 9:399-416
Teratani-Ota, Yusuke; Yamamizu, Kohei; Piao, Yulan et al. (2016) Induction of specific neuron types by overexpression of single transcription factors. In Vitro Cell Dev Biol Anim 52:961-973
Livigni, Alessandra; Peradziryi, Hanna; Sharov, Alexei A et al. (2013) A conserved Oct4/POUV-dependent network links adhesion and migration to progenitor maintenance. Curr Biol 23:2233-2244
Morgani, Sophie M; Canham, Maurice A; Nichols, Jennifer et al. (2013) Totipotent embryonic stem cells arise in ground-state culture conditions. Cell Rep 3:1945-57
Hammachi, Fella; Morrison, Gillian M; Sharov, Alexei A et al. (2012) Transcriptional activation by Oct4 is sufficient for the maintenance and induction of pluripotency. Cell Rep 1:99-109
Canham, Maurice A; Sharov, Alexei A; Ko, Minoru S H et al. (2010) Functional heterogeneity of embryonic stem cells revealed through translational amplification of an early endodermal transcript. PLoS Biol 8:e1000379
Kunisada, Makoto; Cui, Chang-Yi; Piao, Yulan et al. (2009) Requirement for Shh and Fox family genes at different stages in sweat gland development. Hum Mol Genet 18:1769-78
Sharova, Lioudmila V; Sharov, Alexei A; Nedorezov, Timur et al. (2009) Database for mRNA half-life of 19 977 genes obtained by DNA microarray analysis of pluripotent and differentiating mouse embryonic stem cells. DNA Res 16:45-58

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