Landsverk, H.B., Mora-Bermúdez, F., Landsverk, O.J.B., Hasvold, G., Naderi, S., Bakke, O., Ellenberg, J., Collas, P., Syljuåsen, R., and Küntziger, T. The protein phosphatase 1 regulator PNUTS is a novel component of the DNA damage response. EMBO Reports, in press.
Collas, P. Programming differentiation potential in mesenchymal stem cells. Epigenetics. In press.
Sørensen, A.L., Jacobsen, B.M., Reiner, A.H., Andersen, I.S., and Collas, P. Promoter DNA methylation patterns of differentiated cells are largely programmed at the progenitor stage. Mol. Biol. Cell. 21, 2066-77.
Delbarre, E., Jacobsen, B.M., Reiner, A.H., Sørensen, A.L., Küntziger, T., and Collas, P. Chromatin environment of histone variant H3.3 revealed by quantitative imaging and genome-scale chromatin and DNA immunoprecipitation. Mol Biol Cell. 21, 1872-84.
Lindeman, L.C., Winata, C.L., Aanes, H., Mathavan, S., Aleström, P., and Collas, P. Chromatin states of developmentally-regulated genes revealed by DNA and histone methylation patterns in zebrafish embryos. Int. J. Dev. Biol. 54, 803-13.
Dahl, J.A., Reiner, A.H., Klungland, A., Wakayama, T., and Collas, P. Histone H3 lysine 27 methylation asymmetry on developmentally-regulated promoters distinguish the first two lineages in mouse preimplantation embryos. PLoS One. 5, e9150.PMID.
Collas, P. The current state of chromatin immunoprecipitation. Mol Biotechnol. 45, 87-100.
Choi, Y.S., Dusting, G.J., Stubbs, S., Arunothayaraj, S., Han, X.L., Collas, P., Morrison, W.A., and Dilley, R.J. Differentiation of human adipose-derived stem cells into beating cardiomyocytes. J. Cell. Mo.l Med. 14, 878-89.
Barrand, S., and Collas, P. Chromatin states of core pluripotency-associated genes in pluripotent, multipotent and differentiated cells. Biochem. Biophys. Res. Commun. 391, 762-7.
Sørensen, A.L., Timoskainen, S., West, F.D., Vekterud, K., Boquest, A.C., Ahrlund-Richter, L., Stice, S.L., and Collas, P. Lineage-specific promoter DNA methylation patterns segregate adult progenitor cell types. Stem Cells Dev. 19, 1257-66.
2009
Sørensen, A.L., and Collas, P. 2009. Immunoprecipitation of methylated DNA. Methods Mol. Biol. 567, 249-62.
Lindeman, L.C., Vogt-Kielland, L.T., Aleström, P., and Collas, P. 2009. Fish'n ChIPs: chromatin immunoprecipitation in the zebrafish embryo. Methods Mol. Biol. 567, 75-86.
Dahl, J.A., and Collas, P. 2009. muChIP: chromatin immunoprecipitation for small cell numbers. Methods Mol. Biol. 567, 59-74.
Collas, P. 2009. The state-of-the-art of chromatin immunoprecipitation. Methods Mol. Biol. 567, 1-25.
Pewsey, E., Bruce, C., Georgiou, A.S., Jones, M., Baker, D., Ow, S.Y., Wright, P.C., Freberg, C.K., Collas, and Fazeli, A.P. 2009. Proteomics analysis of epithelial cells reprogrammed in cell-free extract. Mol. Cell Proteomics. 8, 1401-12.
Dahl, J.A., Reiner, A.H., and Collas, P. 2009. Fast genomic muChIP-chip from 1,000 cells. Genome Biol. 10, R13.
Rogne, M., Stokka, A.J., Tasken, K., Collas, P., and Küntziger, T. 2009. Mutually exclusive binding of PP1 and RNA to AKAP149 affects the mitochondrial network. Hum. Mol. Genet. 18, 978-87.
Collas, P. 2009. Epigenetic states in stem cells. Biochim. Biophys. Acta 1790, 900-5.
Noer, A., Lindeman, L.C., and Collas, P. 2009. Histone H3 modifications associated with differentiation and long-term culture of mesenchymal adipose stem cells. Stem Cell Dev. 18, 725-36.
2008
Dahl, J.A., Duggal, S., Coulston, N., Millar, D., Melki, J., Shahdafar, A., Brinchmann, J.E., and Collas, P. 2008. Genomic and epigenetic instability of human bone marrow mesenchymal stem cells cultured in autologous serum or fetal calf serum. Int. J. Dev. Biol. 52, 1033-42.
Ugland, H., Boquest, A.C., Naderi, S., Collas, P. and Blomhoff, H.K. 2008. cAMP-mediated induction of cyclin E sensitizes growth-arrested adipose stem cells to DNA damage-induced apoptosis. Mol. Biol. Cell. 19, 5082-92.
Shahdafar, A., Løken, S., Dahl, J.A., Tunheim, S.H., Eriksen, Collas, P., Reinholt, F.P., Engebretsen, L., and Brinchmann, J.E. 2008. Persistence of collagen type II in rapidly proliferating human articular chondrocytes in vitro. Tissue Eng. Part A 14, 1989-2007.
Dahl, J.A., and Collas, P. 2008. A rapid micro-chromatin immunoprecipitation assay. Nat. Protocols. 3, 1032-45.
Lund-Olesen, T., Dufva, M., Dahl, J.A., Collas, P., and Hansen, M.F. 2008. Sensitive on-chip quantitative real-time PCR performed on an adapatable and robust platform. Biomed. Microdevices. 10, 769-76.
Meza-Zepeda, L.A., Noer, A., Dahl, J.A., Micci, F., Myklebost, O., and Collas, P. 2008. High-resolution analysis of genetic stability of human adipose tissue stem cells cultured to senescence. J. Cell Mol. Med. 12, 553-63.
Håkelien, A.M., Delbarre, E., Gaustad, K.G., Buendia, B., and Collas, P. 2008. Expression of the myodystrophic R453W mutation of lamin A in C2C12 myoblasts causes promoter-specific and global epigenetic defects. Exp. Cell Res. 314, 1869-80.
Dahl, J.A., and Collas, P. 2008. MicroChIP – a rapid micro-chromatin immunoprecipitation assays for small cell numbers and biopsies. Nucl. Acids Res. 36, e15.
Collas, P., and Dahl, J.A. 2008. Chop it, ChIP it., check it: the status of chromatin immunoprecipitation. Front. Biosci. 13, 929-43.
Collas, P., Timoskainen, S., and Noer, A. 2008. Epigenetic basis for differentiation plasticity in stem cells. In Regulatory Networks in Stem Cells (V.K. Rajasekhar and Mohan C. Vemuri, Eds). Humana Press. In press.
2007
Dahl, J.A., and Collas, P. 2007. A quick and quantitative chromatin immunoprecipitation assay for small cell samples. Front. Biosci. 12, 4925-31.
Kvissel, A.K., Orstavik, S., Eikvar, S., Brede, G., Jahnsen, T., Collas, P., Akusjarvi, G., and Skalhegg, B.S. 2007. Involvement of the catalytic subunit of protein kinase A and of HA95 in pre-mRNA splicing. Exp. Cell Res. 313, 2795-809.
Freberg, C.T., Dahl, J.A., Timoskainen, S., and Collas, P. 2007. Epigenetic reprogramming of OCT4 and NANOG regulatory regions by embryonal carcinoma cell extract. Mol. Biol. Cell. 18, 1543-53.
Collas, P., and Gammelsaeter, R. 2007. Novel approaches to epigenetic reprogramming of somatic cells. Cloning Stem Cells. 9, 26-32.
Dahl, J.A., and Collas, P. 2007. Q2ChIP, a quick and quantitative chromatin immunoprecipitation assay, unravels epigenetic dynamics of developmentally regulated genes in human carcinoma cells. Stem Cells. 25, 1037-46.
Noer, A., Boquest, A.C., and Collas, P. 2007. Dynamics of adipogenic promoter DNA methylation during clonal culture of human adipose stem cells to senescence. BMC. Cell Biol. 8, 18.
Boquest, A.C., Noer, A., Sorensen, A.L., Vekterud, K., and Collas, P. 2007. CpG methylation profiles of endothelial cell-specific gene promoter regions in adipose tissue stem cells suggest limited differentiation potential toward the endothelial cell lineage. Stem Cells. 25, 852-61.
Morrison, J.I., Loof, S., He, P., Alestrom, P., Collas, P., and Simon, A. 2007. Targeted gene delivery to differentiated skeletal muscle: a tool to study dedifferentiation. Dev. Dyn. 236, 481-8.
Collas, P. 2007. Dedifferentiation of cells: new approaches. Cytotherapy. 9, 236-44.
