» Articles » PMID: 16291863

Phospholipase D2 is Required for Efficient Endocytic Recycling of Transferrin Receptors

Overview
Journal Mol Biol Cell
Date 2005 Nov 18
PMID 16291863
Citations 27
Authors
Affiliations
Soon will be listed here.
Abstract

RNA interference-mediated depletion of phospholipase D2 (PLD2), but not PLD1, inhibited recycling of transferrin receptors in HeLa cells, whereas the internalization rate was unaffected by depletion of either PLD. Although reduction of both PLD isoforms inhibits PLD activity stimulated by phorbol 12-myristic 13-acetate, only depletion of PLD2 decreased nonstimulated activity. Cells with reduced PLD2 accumulated a greater fraction of transferrin receptors in a perinuclear compartment that was positive for Rab11, a marker of recycling endosomes. EFA6, an exchange factor for Arf6, has been proposed to stimulate the recycling of transferrin receptors. Thus, one consequence of EFA6 overexpression would be a reduction of the internal pool of receptors. We confirmed this observation in control HeLa cells; however, overexpression of EFA6 failed to decrease the internal pool of transferrin receptors that accumulate in cells previously depleted of PLD2. These observations suggest that either PLD2 is required for a constitutive Arf6-mediated recycling pathway or in the absence of PLD2 transferrin receptors accumulate in recycling endosomes that are not responsive to overexpression of EFA6.

Citing Articles

Serotonin: an overlooked regulator of endocytosis and endosomal sorting?.

Redpath G, Deo N Biol Open. 2022; 11(1).

PMID: 35076063 PMC: 8801889. DOI: 10.1242/bio.059057.


Mechanism of membrane fusion: protein-protein interaction and beyond.

Wang H, Zhang C, Xiao H Int J Physiol Pathophysiol Pharmacol. 2020; 11(6):250-257.

PMID: 31993099 PMC: 6971501.


Mammalian phospholipase D: Function, and therapeutics.

McDermott M, Wang Y, Wakelam M, Bankaitis V Prog Lipid Res. 2019; 78:101018.

PMID: 31830503 PMC: 7233427. DOI: 10.1016/j.plipres.2019.101018.


Co-ordinated activation of classical and novel PKC isoforms is required for PMA-induced mTORC1 activation.

Liu M, Clarke C, Salama M, Choi Y, Obeid L, Hannun Y PLoS One. 2017; 12(9):e0184818.

PMID: 28926616 PMC: 5604983. DOI: 10.1371/journal.pone.0184818.


Differential phosphorylation signals control endocytosis of GPR15.

Okamoto Y, Shikano S Mol Biol Cell. 2017; 28(17):2267-2281.

PMID: 28615320 PMC: 5555655. DOI: 10.1091/mbc.E16-09-0627.


References
1.
Jiang H, Luo J, Urano T, Frankel P, Lu Z, Foster D . Involvement of Ral GTPase in v-Src-induced phospholipase D activation. Nature. 1995; 378(6555):409-12. DOI: 10.1038/378409a0. View

2.
Paleotti O, Macia E, Luton F, Klein S, Partisani M, Chardin P . The small G-protein Arf6GTP recruits the AP-2 adaptor complex to membranes. J Biol Chem. 2005; 280(22):21661-6. DOI: 10.1074/jbc.M503099200. View

3.
Prigent M, Dubois T, Raposo G, Derrien V, Tenza D, Rosse C . ARF6 controls post-endocytic recycling through its downstream exocyst complex effector. J Cell Biol. 2003; 163(5):1111-21. PMC: 2173613. DOI: 10.1083/jcb.200305029. View

4.
De Camilli P, Emr S, McPherson P, Novick P . Phosphoinositides as regulators in membrane traffic. Science. 1996; 271(5255):1533-9. DOI: 10.1126/science.271.5255.1533. View

5.
Singer W, Brown H, Jiang X, Sternweis P . Regulation of phospholipase D by protein kinase C is synergistic with ADP-ribosylation factor and independent of protein kinase activity. J Biol Chem. 1996; 271(8):4504-10. DOI: 10.1074/jbc.271.8.4504. View