Notes: The pGL3-Promoter Vector was treated with various concentrations of the chemotherapeutic cancer and DNA cross-linking agent, cisplatin. The damaged pGL3-Promoter Vector and the pSV-β-Galactosidase Control Vector were then transiently transfected into the human lung adenocarcinoma cell line, A549, and later analyzed for luciferase activity using the Luciferase Assay System with Reporter Lysis Buffer. The researchers also used M-MLV Reverse Transcriptase to clone the antisense sequence to XPA (Xeroderma Pigmentosum group A) mRNA.  The cloned antisense sequence was then expressed in A549 cells for its effect on XPA gene expression. (2833)

Notes: These authors used the Steady-Glo^® Luciferase Assay System and Reporter Lysis Buffer in their studies on the 5´ UTR of p27 mRNA. (2434)

Notes: The interleukin (IL)-1ß stimulated release of granulocyte macrophage colony stimulating factor (GM-CSF) from lung epithelial cells was explored in this study. To test the promoter activity of GM-CSF, the promoter and enhancer regions were amplified by PCR from human peripheral blood mononuclear cells and cloned into the pGEM^®-T vector. After verification by sequencing, the promoter and enhancer were cloned individually and together into the pGL3-Basic Vector. Additionally, an Xho I/Sal I fragment containing the HSV tk promoter, a gene conferring neomycin resistance, and a poly-A tail were cloned into the Sal I site of pGL3 to allow the production of stable transfectants. To perform stable transfections, 20µl of the Tfx™-50 transfection reagent was incubated with 8µg of plasmid in serum-free medium for 15 minutes at room temperature.  Preconfluent human A549 type II alveolar carcinoma cells were incubated with the transfection mix for 2 hours after washing with serum-free medium. The cells were then cultured in fresh medium for 16 hours before the addition of  0.5mg/mL G-418. After 21 days, foci of cells developed and were harvested for use in luciferase assays. The cells were plated into 24-well plates, grown to confluency and incubated in serum-free medium. Stimulation by 1ng/ml IL-1ß or 1µM PMA for 12 hours was followed by lysate production and measurement of luciferase activity using the Luciferase Assay System and a Turner luminometer. Luciferase readings were standardized against total protein measurements. The PolyATract^® System IV was also used prior to a Northern Blot to obtain purified mRNA. (2742)

Notes: pSV-β-Galactosidase Control Vector was cotransfected as an internal standard. Cell extracts were made 24 hours after the transfection using the Reporter Lysis Buffer and assayed using the β-Galactosidase Enzyme Assay System . (1056)

Notes: Cytotoxicity of AT-61 for HepG2 cells an HEPAD38 cells (a HepG2 cell loine that produces HBV when grown in the absence of tetracycline) was assessed using the Cell Titer 96^® Non-Radioactive Cell Proliferation Assay. To assay for the inhibition of the tetracycline promoter activity in HepAD43 cells (produces β-galactosidase in the absence of tetracycline), β-galactosidase activity was determined using the Reporter Lysis Buffer from the β-Galactosidase Assay System. (2506)