Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8477021 | Molecular and Cellular Endocrinology | 2015 | 12 Pages |
Abstract
We report a new bone anabolic and anti-catabolic pterocarpan 9-demethoxy-medicarpin (DMM) for the management of postmenopausal osteoporosis. DMM promoted osteoblast functions via activation of P38MAPK/BMP-2 pathway and suppressed osteoclastogenesis in bone marrow cells (BMCs). In calvarial osteoblasts, DMM blocked nuclear factor kappaB (NFκB) signaling and inhibited the mRNA levels of pro-inflammatory cytokines. DMM treatment led to increased OPG (osteoprotegrin) and decreased transcript levels of TRAP (tartarate resistant acid phosphatase), RANK (receptor activator of NFκB) and RANKL (RANK ligand) in osteoblast-osteoclast co-cultures. Immature female SD rats administered with DMM exhibited increased bone mineral density, bone biomechanical strength, new bone formation and cortical bone parameters. Ovx mice administered with DMM led to significant restoration of trabecular microarchitecture and had reduced formation of osteoclasts and increased formation of osteoprogenitor cells in BMCs. DMM exhibited no uterine estrogenicity. Overall, these results demonstrate the therapeutic potential of DMM for the management of postmenopausal osteoporosis.
Keywords
pTHperiosteal perimeterTNFPterocarpansosteoprotegrinosterixSERMM-CSFNFkBBMCsOCNOPGBFRovariectomizedOVXTRAPBMDDMMRANKLMARμ-CTBV/TVMAPKMitogen activated protein kinasesALPAlkaline phosphataseOsteocalcinOsxBone mineral densityRankBone marrow cellstumor necrosis factornuclear factor kappa Bmacrophage-colony stimulating factorSelective estrogen receptor modulatorsbone formation rateMineral apposition ratemicro computed tomographyparathyroid hormoneOsteoporosisEstrogen receptorReceptor activator of nuclear factor κB ligand
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Authors
Atul Goel, Ashutosh Raghuvanshi, Amit Kumar, Abnish Gautam, Kamini Srivastava, Jyoti Kureel, Divya Singh,