Characteristics of the response of ovine granulocytes (PMNs) to zymosan-activated serum (ZAS) and to recombinant human interleukin-8 (IL-8)
摘要:
The chemotactic activity of zymosan‐activated serum (ZAS) and of two concentrations of recombinant human IL‐8 (IL‐825, 25 ng/ml; IL‐850, 50 ng/ml) for ovine polymorphonuclear granulocytes (PMNs) was tested in a modified Boyden chamber. Thick cellulose acetate filters and the leading front method were used to quantify the movements of the cells. Both ZAS and IL‐825 exerted a chemotactic effect on ovine PMNs (P < 0.01): IL‐850 induced a more homogeneous response (P < 0.001). To verify the characteristics of the responsiveness to the chemokines after short‐term (st) or long‐term (lt) repeated samplings, chemotaxis was investigated 1 (T1st), 2 (T2st), 24 (T3st) and 48 h (T4st) after the basal sampling (T0st) and 15 days (T1lt) after the basal sampling (T0lt). No differences in chemotaxis were found in long‐term repeated samplings. In contrast an increase in the responsiveness to IL‐825 and to IL‐850 (P < 0.05) was detected at T2st in comparison with T0st. Furthermore, the significance of the distance run by activated PMNs compared with the controls, increased from T0st to T2st, as a sign of a more homogeneous response to the chemokines. In the absence of evident changes in circulating leucocyte numbers and in serum cortisol concentrations, these findings could be interpreted as a consequence of a different expression of chemoattractant receptors on the membrane of PMNs collected at different times.
series of 2-sulfonyl-pyrimidinyl derivatives was developed as apoptosis inhibitors. These represent the first class of apoptosis inhibitors that function through stabilizing mitochondrial respiratory complex II. Starting from a phenotypic screen hit with micromolar activity, we optimized the cellular apoptosis inhibition activity of 2-sulfonyl-pyrimidinyl derivatives to picomolar level (compound 42
Pyridopyrimidinones derivatives as telomerase inhibitors
申请人:Pharmacia Italia S.p.A.
公开号:US20040009993A1
公开(公告)日:2004-01-15
The invention provides novel pyrido[2,3-d]pyrimidin-7(8H)-ones derivatives active as telomerase inhibitors, the use of the derivatives as therapeutic agents, such as antitumoral agents, processes for preparation of the derivatives, and to pharmaceutical compositions comprising the derivatives.
PYRIDIN-2-ONE DERIVATIVES OF FORMULA (I) USEFUL AS EP3 RECEPTOR ANTAGONISTS
申请人:Janssen Pharmaceutica NV
公开号:US20190047959A1
公开(公告)日:2019-02-14
The present invention is directed to pyridin-2-one derivatives, pharmaceutical compositions containing them and their use as antagonists of the EP3 receptor, for the treatment of for example, impaired oral glucose tolerance, elevated fasting glucose, Type II Diabetes Mellitus, Syndrome X (also known as Metabolic Syndrome) and related disorders and complications thereof.
PYRIDIN-2-ONE DERIVATIVES OF FORMULA (III) USEFUL AS EP3 RECEPTOR ANTAGONISTS
申请人:Janssen Pharmaceutica NV
公开号:US20190047961A1
公开(公告)日:2019-02-14
The present invention is directed to pyridin-2-one derivatives, pharmaceutical compositions containing them and their use as antagonists of the EP3 receptor, for the treatment of for example, impaired oral glucose tolerance, elevated fasting glucose, Type II Diabetes Mellitus, Syndrome X (also known as Metabolic Syndrome) and related disorders and complications thereof.
[EN] BROAD-SPECTRUM CARBAPENEMS<br/>[FR] CARBAPÉNÈMES À LARGE SPECTRE
申请人:VENATORX PHARMACEUTICALS INC
公开号:WO2019232053A1
公开(公告)日:2019-12-05
The present disclosure provides broad-spectrum carbapenem derivatives and pharmaceutical compositions useful in the treatment of bacterial infections and methods for treating such infections using such derivatives and/or compositions.