Sheep anti Human Factor X polyclonal antibody

Polybrominated diphenyl ethers (PBDEs) are brominated, persistent and bioaccumulative flame retardants widely used in the manufacture of plastic products. Decabromodiphenyl ether (BDE-209) is the most prevalent PBDE in the atmosphere and found in human blood, breast milk and umbilical cord. In vitro studies showed that BDE-209 interferes with murine melanoma cells (616F10), modulating cell death rates, proliferation and migration, important events for cancer progression. In order to evaluate if BDE-209 modulates metastasis formation in murine models, C57BL/6 mice were exposed to BDE-209 (0.08, 0.8 and 8 mu g/kg) via gavage (5-day intervals for 45 days) (9 doses in total). Then, mice were inoculated with melanoma cells (B16-F10) at caudal vein receiving 4 additional doses of BDE-209. At 20th day post-cell inoculation, blood, lung, liver, kidney and brain were sampled for hematological, biochemical and morphological analyses. The slightly higher levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in the blood and pro-oxidant state in the liver of BDE-exposed mice indicated liver damage. Although the in vivo approach is for metastasis formation in the lung, they were unexpectedly observed in non-target organs (liver, brain, kidney and gonads). The similarity test showed high proximity among individuals from the control and a dissimilarity index between the control and exposed groups. The present data corroborate the known hepatotoxicity of BDE-209 to mice (C57BL/6) and demonstrate for the first time the increase of metastatic dissemination of Bl6F10 cells in vivo due to previous and continuous BDE-209 exposure, revealing possible implications of this organic compound with melanoma malignancy related traits. (C) 2020 Elsevier Ltd. All rights reserved.

Fourteen new meroterpenoid compounds, corypsoriols A-N (1-14), and eight known ones (15-22), were isolated from the fruits of Psoralea corylifolia. The absolute configurations of these new compounds were confirmed by NOESY spectrum, ECD calculation, and single crystal X-ray diffraction. Corypsoriols A and B were a novel skeleton which possessed a 6/5/6 tricyclic system, and their plausible biosynthetic pathway was proposed. The cytotoxicity of uncyclized meroterpenoids were stronger than those of cyclized ones, and the half maximal inhibitory concentration values of bakuchiol (15) against NCI-N87, HepG2, HCT-116, Hela and B16-F10 cell lines were in the range of 5-20 mu M. (C) 2020 Elsevier Ltd. All rights reserved.