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https://www.selleckchem.com/mTOR.html Hispolon (HISP) is a bioactive compound isolated from Phellinu linteus. It has various pharmacological activities, including antioxidant, anti-inflammatory, and anti-cancer. However, its anti-osteoclastogenic activity has not yet been reported. Hence, in the current study, we have explored the anti-osteoclastogenic activity of HISP and elucidated the molecular mechanisms. HISP inhibited the RANKL induced differentiation of RAW 264.7 cells into osteoclasts in a dose-dependent manner. Mechanistic studies showed that HISP inhibited RANKL-mediated activation of NF-κB and MAPK signaling pathways in osteoclast precursors RAW 264.7 cells. In addition, Hispolon also downregulated the expression of master transcriptional factors essential for osteoclast differentiation, such as NFATc1 and c-FOS. In conclusion, these findings establish molecular mechanisms behind the anti-osteoclastogenic activity of HISP.Changes in the thymus and potential mechanisms underlying the pathogenesis in pristane-induced lupus (PIL) mice are poorly understood. This study aimed to systematically and specifically examine changes in the thymus and the potential mechanisms responsible for immunological abnormalities in PIL mice. The results showed that PIL mice exhibit serious thymic hyperplasia, an elevated thymus index, a damaged histopathological structure and increased thymocyte apoptosis. We found that thymic T cell differentiation was impaired as the CD4+ CD8+ double-positive (DP) thymocyte frequency significantly decreased, becoming almost absent at 28 weeks after induction, while CD4 CD8- double-negative (DN) thymocytes and CD4+ CD8- single-positive (CD4+ SP) and CD4 CD8+ single-positive (CD8+ SP) cells were increased. This phenomenon might be explained by an inhibition of the DN-to-DP-cell transition and stimulation of DP cell conversion into CD4+ /CD8+ SP thymocytes. Moreover, we discovered a dramatic and abnormal increase in thymic B cells, that was asso

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