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Farruk M. Lutful Kabir,Patricia DeInnocentes,Payal Agarwal,Christopher P. Mill,David J. Riese 2nd,R. Curtis Bird 대한수의학회 2017 Journal of Veterinary Science Vol.18 No.2
Well characterized, stable, p16-defective canine mammary cancer (CMT) cell lines and normal canine mammary epithelial cells were used to investigate expression of the major breast cancer-specific hormone receptors estrogen receptor alpha (ER1) and progesterone receptor (PR) as well as luminal epithelial-specific proto-oncogenes encoding c-erbB-1 (epidermal growth factor receptor/EGFr), c-erbB-2/HER2, c-erbB-3, and c-erbB-4 receptors. The investigation developed and validated quantitative reverse transcriptase polymerase chain reaction assays for each transcript to provide rapid assessment of breast cancer phenotypes for canine cancers, based on ER1, PR, and c-erbB-2/HER2 expressions, similar to those in human disease. Roles for relatively underexplored c-erbB-3 and c-erbB-4 receptor expressions in each of these breast cancer phenotypes were also evaluated. Each quantitative assay was validated by assessment of amplicon size and DNA sequencing following amplification. Differential expression of ER1, PR, and c-erbB-2 in CMT cell lines clearly defined distinct human-like breast cancer phenotypes for a selection of CMT-derived cell lines. Expression profiles for EGFr family genes c-erbB-3 and c-erbB-4 in CMT models also provided an enriched classification of canine breast cancer identifying new extended phenotypes beyond the conventional luminal-basal characterization used in human breast cancer.
Complex Chiral Colloids and Surfaces via High-Index Off-Cut Silicon
McPeak, Kevin M.,van Engers, Christian D.,Blome, Mark,Park, Jong Hyuk,Burger, Sven,Gosá,lvez, Miguel A.,Faridi, Ava,Ries, Yasmina R.,Sahu, Ayaskanta,Norris, David J. American Chemical Society 2014 NANO LETTERS Vol.14 No.5
<P>Silicon wafers are commonly etched in potassium hydroxide solutions to form highly symmetric surface structures. These arise when slow-etching {111} atomic planes are exposed on standard low-index surfaces. However, the ability of nonstandard high-index wafers to provide more complex structures by tilting the {111} planes has not been fully appreciated. We demonstrate the power of this approach by creating chiral surface structures and nanoparticles of a specific handedness from gold. When the nanoparticles are dispersed in liquids, gold colloids exhibiting record molar circular dichroism (>5 × 10<SUP>9</SUP> M<SUP>–1</SUP> cm<SUP>–1</SUP>) at red wavelengths are obtained. The nanoparticles also present chiral pockets for binding.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2014/nalefd.2014.14.issue-5/nl501032j/production/images/medium/nl-2014-01032j_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nl501032j'>ACS Electronic Supporting Info</A></P>