title: GFP expression in the mammary gland for imaging of mammary tumor cells in transgenic mice.
abstract: To examine the behavior of tumor cells in tumors developing directly from mammary tissue in transgenic models, we have evaluated transgenic mice expressing green fluorescent protein (GFP). Using the mouse mammary virus promoter (MMTV) to directly drive expression of GFP, we find low levels of fluorescence in the mammary and salivary glands of transgenic animals. Using MMTV-Cre or WAP-Cre in combination with the Cre-activatable CAG-CAT-EGFP construct, we find stronger expression of GFP that is still tissue specific. These animals provide a range of expression of GFP that is suitable for analysis of transgenic mammary tumors and metastases in vivo at the single cell level of resolution.
authors.affiliation: Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
authors.forename: Fayyaz
authors.initials: F
authors.lastname: Ahmed
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Wyckoff
authors.forename: Elaine Y
authors.initials: EY
authors.lastname: Lin
authors.forename: Weigang
authors.initials: W
authors.lastname: Wang
authors.forename: Yarong
authors.initials: Y
authors.lastname: Wang
authors.forename: Lothar
authors.initials: L
authors.lastname: Hennighausen
authors.forename: Jun-ichi
authors.initials: J
authors.lastname: Miyazaki
authors.forename: Joan
authors.initials: J
authors.lastname: Jones
authors.forename: Jeffrey W
authors.initials: JW
authors.lastname: Pollard
authors.forename: John S
authors.initials: JS
authors.lastname: Condeelis
authors.forename: Jeffrey E
authors.initials: JE
authors.lastname: Segall
mesh_terms: D000818:Animals; D049452:Green Fluorescent Proteins; D008164:Luminescent Proteins / Q000096:biosynthesis* / Q000235:genetics; D008321:Mammary Glands, Animal / Q000378:metabolism*; D008325:Mammary Neoplasms, Experimental / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D008324:Mammary Tumor Virus, Mouse / Q000235:genetics; D051379:Mice; D008822:Mice, Transgenic; D036641:Microscopy, Fluorescence, Multiphoton / Q000379:methods; D011401:Promoter Regions, Genetic; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012469:Salivary Glands / Q000378:metabolism
chemical_list: D008164:Luminescent Proteins; D049452:Green Fluorescent Proteins