2001
DOI: 10.1006/bbrc.2001.6080
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Association of Globular β-Actin with Intracellular Lipid Droplets in Rat Adrenocortical Cells and Adipocytes

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Cited by 16 publications
(16 citation statements)
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“…Although the cells could differentiate into osteocytes after the removal of CYD, we observed a significant decrease in the differentiation potential which could be attributed to the decrease in OSTEOCALCIN levels during CYD treatment. Previous studies have shown that beta-actin attaches itself to the surface of fat droplets indicating a possible role for beta-actin in lipid metabolism [22]. In addition, steroid responding cells which include adipocytes seem to maintain a higher level of monomeric actin which facilitates cholesterol transport [23,24].…”
Section: Discussionmentioning
confidence: 99%
“…Although the cells could differentiate into osteocytes after the removal of CYD, we observed a significant decrease in the differentiation potential which could be attributed to the decrease in OSTEOCALCIN levels during CYD treatment. Previous studies have shown that beta-actin attaches itself to the surface of fat droplets indicating a possible role for beta-actin in lipid metabolism [22]. In addition, steroid responding cells which include adipocytes seem to maintain a higher level of monomeric actin which facilitates cholesterol transport [23,24].…”
Section: Discussionmentioning
confidence: 99%
“…The present studies and others have identified candidate cytoskeletal proteins associated with neutral lipid droplets in various cell types 17-18, 36-37 . Previous studies have described microtubule-dependent fusion of triacylglyceride droplets as a mechanism of droplet growth in adipocytes and cell-free systems 41-42 .…”
Section: Discussionmentioning
confidence: 53%
“…We identified a striking number of cytoskeletal proteins in our analysis (Table I). Many of these proteins have been identified as candidate droplet proteins in other cell types by other groups 17-18, 36-37 . Additionally, figure 1 indicates that actin protein, detected by Western Blot, is enriched in the purified lipid droplet fraction compared to the whole cell homogenate (WCH), cell pellet and the cytosolic fraction.…”
Section: Resultsmentioning
confidence: 99%
“…Qu'en est-il des autres structures du cytosquelette, les câbles d'actine, les filaments intermédiaires et les protéines contractiles? Si la présence de β-actine à la périphérie des gouttelettes lipidiques de cellules de la médullosurrénale et d'adipocytes de rat [31], de vimentine, de gelsoline et de géphyrine dans les globules lipidiques du lait a été montré [25], nous connaissons mal le rôle de ces protéines dans le transport intracellulaire des gouttelettes lipidiques et des globules lipidiques. Quoi qu'il en soit, ces données laissent supposer que l'adipophiline, et/ou TIP47, sont en interaction avec un (des) moteur(s) moléculaire(s) porté(s) par la vésicule contenant le récepteur du M6P ou par les gouttelettes lipidiques pour contrôler leur transport sur le réseau cytosquelettique.…”
Section: Tip47 Serait-elle Un Régulateur Commun De Transport ?unclassified