2014
DOI: 10.1128/mcb.00578-13
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Microtubule Dynamic Instability Controls Podosome Patterning in Osteoclasts through EB1, Cortactin, and Src

Abstract: In osteoclasts (OCs) podosomes are organized in a belt, a feature critical for bone resorption. Although microtubules (MTs) promote the formation and stability of the belt, the MT and/or podosome molecules that mediate the interaction of the two systems are not identified. Because the growing "plus" ends of MTs point toward the podosome belt, plus-end tracking proteins (؉TIPs) might regulate podosome patterning. Among the ؉TIPs, EB1 increased as OCs matured and was enriched in the podosome belt, and EB1-positi… Show more

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Cited by 50 publications
(86 citation statements)
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References 94 publications
(149 reference statements)
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“…Finally, we did not find any effect of tensin 3 silencing on the acetylation of microtubules (Fig. 8C), a marker of microtubule stability, which is also important for the regulation of the podosome belt (Biosse Duplan et al, 2014). These results show that the depletion of tensin 3 disrupts podosome patterning associated with reduced osteoclast activity and increased global levels of RhoA activity.…”
Section: Tensin 3 Stimulates Dock5 Exchange Activity Towards Racmentioning
confidence: 49%
“…Finally, we did not find any effect of tensin 3 silencing on the acetylation of microtubules (Fig. 8C), a marker of microtubule stability, which is also important for the regulation of the podosome belt (Biosse Duplan et al, 2014). These results show that the depletion of tensin 3 disrupts podosome patterning associated with reduced osteoclast activity and increased global levels of RhoA activity.…”
Section: Tensin 3 Stimulates Dock5 Exchange Activity Towards Racmentioning
confidence: 49%
“…In addition, phosphorylation of CTN may enhance its ability to act as an adaptor or negatively regulate its function. Moreover, phosphorylation of CTN tyrosine is regulated by growing microtubules (28,30,34). This study suggests that EGF-elicited dissociation of the TIP150-CTN complex is needed to accelerate the recycling of TIP150 and CTN to promote leading edge membrane expansion and persistent microtubule growth, respectively.…”
Section: Discussionmentioning
confidence: 92%
“…Podosome dynamics are strongly regulated by MTs (Babb et al, 1997;Linder et al, 2000;Destaing et al, 2003;Evans et al, 2003;Destaing et al, 2005;Jurdic et al, 2006;Kopp et al, 2006;Gil-Henn et al, 2007;Purev et al, 2009;McMichael et al, 2010;Biosse Duplan et al, 2014). It has become clear from a number of recent studies that MT-podosome relationships are multifaceted -both stable (acetylated; Destaing et al, 2005;Purev et al, 2009;Biosse Duplan et al, 2014) and dynamic (Kopp et al, 2006;Biosse Duplan et al, 2014) MT subpopulations are essential for podosome regulation.…”
Section: Introductionmentioning
confidence: 99%
“…Podosome dynamics are strongly regulated by MTs (Babb et al, 1997;Linder et al, 2000;Destaing et al, 2003;Evans et al, 2003;Destaing et al, 2005;Jurdic et al, 2006;Kopp et al, 2006;Gil-Henn et al, 2007;Purev et al, 2009;McMichael et al, 2010;Biosse Duplan et al, 2014). It has become clear from a number of recent studies that MT-podosome relationships are multifaceted -both stable (acetylated; Destaing et al, 2005;Purev et al, 2009;Biosse Duplan et al, 2014) and dynamic (Kopp et al, 2006;Biosse Duplan et al, 2014) MT subpopulations are essential for podosome regulation. Moreover, several independent molecular machineries structurally and/ or functionally link MTs to podosomes, including tubulin acetylation enzymes (Destaing et al, 2005;Purev et al, 2009;Biosse Duplan et al, 2014), MT plus-end-associated protein complexes (EB1; Biosse Duplan et al, 2014), actin-dependent molecular motors (myosin-X; McMichael et al, 2010) and several MT-dependent molecular motors (Kopp et al, 2006;Wiesner et al, 2010;Cornfine et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
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