ps 10

PS10 is a ATP-competitive inhibitor of pan-PDK(PDK2, PDK4, PDK1, and PDK3 with IC50 of 0.8 μM, 0.76 μM, 2.1 μM and 21.3 μM , respectively).

Paromomycin (Sulfate Salt) is an aminoglycoside that is active against Gram-negative and many Gram-positive bacteria as well as some protozoa and cestodes. Paromomycin in combination with sodium stibogluconate has proven to be effective in African and Indian VL (visceral leishmaniasis) and improves survival in African VL[3]. PS (Paromomycin Sulfate) is effective for elimination of B. coli without hematological side effects[4]. The activity of phosphoglucose isomerase was slightly inhibited by 10(-3) M paromomycin sulfate while those of hexokinase, phosphofructokinase and glucose-6-phosphate dehydrogenase were not inhibited[5]. In addition, with regard to correlation of endotoxemia with renal impairment, endogenous creatinine clearance and p-aminohippurate clearance were significantly improved (P less than 0.02) in those patients whose endotoxemia disappeared on paromomycin sulfate administration. Paromomycin sulfate seems to be effective in the prevention of endotoxemia and the associated renal impairment in cirrhosis in man[6]. Significantly higher frequencies of resistance to paromomycin, kanamycin, neomycin and tobramycin were observed in S. aureus isolates from PS (paromomycin supplemented) birds. Paromomycin supplementation resulted in resistance to aminoglycosides in bacteria of PS turkeys. Co-selection for resistance to other antimicrobial agents was observed in E. coli isolates[7].

Selective, ATP-competitive p38 inhibitor (IC50 = 9 nM for p38α in vitro). Displays approximately 10-fold selectivity for p38α over p38β and 2000-fold selectivity for p38α over 20 other kinases. Reduces p38α phosphorylation in multiple myeloma cells in vitro and in vivo; activity results in decreased tumor burden and angiogenesis in murine models of multiple myeloma. Also enhances bortezomib-induced cytotoxicity against multiple myeloma cells. Hideshima et al (2004) p38 MAPK inhibition enhances PS-341 (bortezomib)-induced cytotoxicity against multiple myeloma cells. Oncogene. 23 8766 PMID:15480425 |Giafis et al (2006) Role of the p38 mitogen-activated protein kinase pathway in the generation of arsenic trioxide-dependent cellular responses. Cancer Res. 66 6763 PMID:16818652 |Vanderkerken et al (2007) Inhibition of p38α mitogen-activated protein kinase prevents the development of osteolytic bone disease, reduces tumor burden, and increases survival in murine models of multiple myeloma. Cancer Res. 67 4572 PMID:17495322

KC01 is an effective and selective inhibitor of ABHD16A. By measuring competitive gel-based ABPP (IC50 values of inhibition of ABHD16A by KC01 and KC02: ~0.2–0.5 μM and >10 μM, respectively). Testing by a PS substrate assay, IC50 values of inhibition of h

10-Deacetylcephalomannin exhibits activity against PS leukemia in vivo; however, its instability leads to an equilibrium mixture with its cytotoxic C-7 epimer. Additionally, 10-Deacetylcephalomannine demonstrates growth inhibitory effects on human cancer cell lines, including cervical HeLa adenocarcinoma.