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- W1993558255 abstract "This study was to explore the sequential signaling of disorganization of the actin cytoskeletal architecture by phloretin. RAW 264.7 macrophages were incubated with 1–20 <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mrow><mml:mi>μ</mml:mi></mml:mrow></mml:math>M phloretin for 5 days in the presence of RANKL. C57BL/6 mice were ovariectomized (OVX) and orally treated with 10 mg/kg phloretin once a day for 8 weeks. Phloretin allayed RANKL stimulated formation of actin podosomes with the concomitant retardation of the vinculin activation. Oral administration of phloretin suppressed the induction of femoral gelsolin and vinculin in OVX mice. The RANK-RANKL interaction resulted in the α v<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M2><mml:mrow><mml:mi>β</mml:mi></mml:mrow></mml:math>3 integrin induction, which was demoted by phloretin. The RANKL induction of actin rings and vacuolar-type H + -ATPase entailed Pyk2 phosphorylation and c-Src and c-Cbl induction, all of which were blunted by phloretin. Similar inhibition was also observed in phloretin-exposed OVX mouse femoral bone tissues with decreased trabecular collagen formation. Phloretin suppressed the paxillin induction in RANKL-activated osteoclasts and in OVX epiphyseal bone tissues. Also, phloretin attenuated the Syk phosphorylation and phospholipase C<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M3><mml:mrow><mml:mi>γ</mml:mi></mml:mrow></mml:math>induction by RANKL in osteoclasts. These results suggest that phloretin was an inhibitor of actin podosomes and sealing zone, disrupting α v<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M4><mml:mrow><mml:mi>β</mml:mi></mml:mrow></mml:math>3 integrin-c-Src-Pyk2/Syk signaling pathway for the regulation of actin cytoskeletal organization in osteoclasts." @default.
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- W1993558255 date "2015-01-01" @default.
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- W1993558255 title "Inhibition of Osteoclast Activation by Phloretin through Disturbing<i>α</i>v<i>β</i>3 Integrin-c-Src Pathway" @default.
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- W1993558255 doi "https://doi.org/10.1155/2015/680145" @default.
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