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Версія від 15:42, 26 березня 2017, створена Burst58alto (обговореннявнесок) (Створена сторінка: ""Protein disulfide isomerase (PDI), an important endoplasmic reticulum-resident oxidoreductase chaperone can bind to estrogens as well as intact with its recep...)

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""Protein disulfide isomerase (PDI), an important endoplasmic reticulum-resident oxidoreductase chaperone can bind to estrogens as well as intact with its receptor proteins [i.e. estrogen receptors (ER) �� and ��]. It has been postulated that PDI also acts as an intracellular 17��-estradiol (E2)-binding protein that transports and accumulates E2 in live cells. Drop in E2 level promotes dissociation of E2 from PDI and released in cytosol; the released E2 can augment estrogen receptor-mediated transcriptional activity and mitogenic action in cultured cells by modulating the ER��/ER�� ratio. In this study, we observed rotenone-induced damage to PDI leads to significant increase in ER��/ER�� ratio by down-regulating ER�� and up-regulating ER��. We demonstrated that nitrosative stress Tofacitinib induced disruption of the cellular estrogenic status can be prevented through diphenyl difluoroketone tuclazepam (EF24, curcumin analog) intervention by protecting PDI from reactive oxygen species (ROS)-induced damage. Together, our study suggests that both PDI and EF24 can play a vital role in maintaining cellular estrogenic homeostasis. ""Intercellular signalling communication between adipose and muscle tissue has been investigated. To test the effect of muscle cells on adipogenic gene expression, we utilised an in vitro co-culture system, in which fat (3T3-L1) and muscle (L-6) cells were physically separated but chemically exposed each other via insert with 0.4??m porous membrane. When 3T3-L1 and L-6 cells reached at 80 and 40% confluence, respectively in separate wells, L-6 cells grown in insert were transferred onto 6-well plates where 3T3-L1 cells were being grown. When both cells were fully differentiated in co-culture plates, morphology of 3T3-L1 was examined by staining with Oil-red-O. Activity of glycerol-3-phosphate dehydrogenase (GPDH) and adipogenic gene expression including lipoprotein lipase (LPL), Cabozantinib ic50 adipsin, GPDH, peroxisome proliferator-activated receptor-�� (PPAR��) and CCAAT/enhancer binding protein (C/EBP��) were analysed. The presence of muscle cells during preadipocyte differentiation inhibited (P?