Publications by authors named "John J Trill"

Endothelial lipase (EL) activity has been implicated in HDL catabolism, vascular inflammation, and atherogenesis, and inhibitors are therefore expected to be useful for the treatment of cardiovascular disease. Sulfonylfuran urea 1 was identified in a high-throughput screening campaign as a potent and non-selective EL inhibitor. A lead optimization effort was undertaken to improve potency and selectivity, and modifications leading to improved LPL selectivity were identified.

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Baculovirus containing the mammalianCMV promoter, in place of the insect polyhedronpromoter (BacMam), has been used to transientlytransfect COS, CHO and CHOE1a (CHO cells expressing theE1a transcriptional activator). Using this system forthe expression of a cellular adhesion factor (SAF-3) Fcfusion protein in CHOE1a, we found that levels ofexpression were highest with a MOI of 100, 20mM sodiumbutyrate, at 34 degrees C. Production increased furtherif the cells were resuspended in fresh medium, about3 x 10(6) cells ml(-1), prior to addition of the virus.

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Endothelial lipase (EL) is a 482-amino-acid protein from the triglyceride lipase gene family that uses a Ser-His-Asp triad for catalysis. Its expression in endothelial cells and preference for phospholipids rather than triglycerides are unique. Animal models in which it is overexpressed or knocked out indicate EL levels are inversely correlated with high-density lipoprotein cholesterol (HDL-C).

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Interleukin-18 (IL-18) is activated and released from immune effector cells to stimulate acquired and innate immune responses involving T and natural killer (NK) cells. The release of IL-18 from mammalian cells is linked to its proteolytic activation by caspases including interleukin 1 converting enzyme (ICE). The absence of a signal peptide sequence and the requirement for coupled activation and cellular release have presented challenges for the large-scale recombinant production of IL-18.

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