» Articles » PMID: 28396819

Rab11-FIP1 Phosphorylation by MARK2 Regulates Polarity in MDCK Cells

Overview
Journal Cell Logist
Date 2017 Apr 12
PMID 28396819
Citations 8
Authors
Affiliations
Soon will be listed here.
Abstract

MARK2/Par1b/EMK1, a serine/threonine kinase, is required for correct apical/basolateral membrane polarization in epithelial cells. However, the specific substrates mediating MARK2 action are less well understood. We have now found that MARK2 phosphorylates Rab11-FIP1B/C at serine 234 in a consensus site similar to that previously identified in Rab11-FIP2. In MDCK cells undergoing repolarization after a calcium switch, antibodies specific for pS234-Rab11-FIP1 or pS227-Rab11-FIP2 demonstrate that the spatial and temporal activation of Rab11-FIP1 phosphorylation is distinct from that for Rab11-FIP2. Phosphorylation of Rab11-FIP1 persists through calcium switch and remains high after polarity has been reestablished whereas FIP2 phosphorylation is highest early in reestablishment of polarity but significantly reduced once polarity has been re-established. MARK2 colocalized with FIP1B/C/D and p(S234)-FIP1 . Overexpression of GFP-Rab11-FIP1C wildtype or non-phosphorylatable GFP-Rab11-FIP1C(S234A) induced two significant phenotypes following calcium switch. Overexpression of FIP1C wildtype and FIP1C(S234A) caused a psuedo-stratification of cells in early time points following calcium switch. At later time points most prominently observed in cells expressing FIP1C(S234A) a significant lateral lumen phenotype was observed, where F-actin-rich lateral lumens appeared demarcated by a ring of ZO1 and also containing ezrin, syntaxin 3 and podocalyxin. In contrast, p120 and E-Cadherin were excluded from the new apical surface at the lateral lumens and now localized to the new lateral surface oriented toward the media. GFP-FIP1C(S234A) localized to membranes deep to the lateral lumens, and immunostaining demonstrated the reorientation of the centrosome and the Golgi apparatus toward the lateral lumen. These results suggest that both Rab11-FIP1B/C and Rab11-FIP2 serve as critical substrates mediating aspects of MARK2 regulation of epithelial polarity.

Citing Articles

Identification of MARK2, CCDC71, GATA2, and KLRC3 as candidate diagnostic genes and potential therapeutic targets for repeated implantation failure with antiphospholipid syndrome by integrated bioinformatics analysis and machine learning.

Zhang M, Ge T, Zhang Y, La X Front Immunol. 2023; 14:1126103.

PMID: 37901230 PMC: 10603295. DOI: 10.3389/fimmu.2023.1126103.


Rab11FIP1-deficient mice develop spontaneous inflammation and show increased susceptibility to colon damage.

Rathan-Kumar S, Roland J, Momoh M, Goldstein A, Lapierre L, Manning E Am J Physiol Gastrointest Liver Physiol. 2022; 323(3):G239-G254.

PMID: 35819177 PMC: 9423785. DOI: 10.1152/ajpgi.00042.2022.


Lanthanum Chloride Induces Axon Abnormality Through LKB1-MARK2 and LKB1-STK25-GM130 Signaling Pathways.

Song Z, Mao H, Liu J, Sun W, Wu S, Lu X Cell Mol Neurobiol. 2022; 43(3):1181-1196.

PMID: 35661286 PMC: 11414431. DOI: 10.1007/s10571-022-01237-0.


CircRTN4 promotes pancreatic cancer progression through a novel CircRNA-miRNA-lncRNA pathway and stabilizing epithelial-mesenchymal transition protein.

Wong C, Lou U, Fung F, Tong J, Zhang C, To K Mol Cancer. 2022; 21(1):10.

PMID: 34983537 PMC: 8725379. DOI: 10.1186/s12943-021-01481-w.


Rab11-FIP1 and Rab11-FIP5 Regulate pIgR/pIgA Transcytosis through TRIM21-Mediated Polyubiquitination.

Fan X, Zhou D, Zhao B, Sha H, Li M, Li X Int J Mol Sci. 2021; 22(19).

PMID: 34638806 PMC: 8508952. DOI: 10.3390/ijms221910466.


References
1.
Caswell P, Chan M, Lindsay A, McCaffrey M, Boettiger D, Norman J . Rab-coupling protein coordinates recycling of alpha5beta1 integrin and EGFR1 to promote cell migration in 3D microenvironments. J Cell Biol. 2008; 183(1):143-55. PMC: 2557049. DOI: 10.1083/jcb.200804140. View

2.
Shulman J, Benton R, St Johnston D . The Drosophila homolog of C. elegans PAR-1 organizes the oocyte cytoskeleton and directs oskar mRNA localization to the posterior pole. Cell. 2000; 101(4):377-88. DOI: 10.1016/s0092-8674(00)80848-x. View

3.
Sapir T, Sapoznik S, Levy T, Finkelshtein D, Shmueli A, Timm T . Accurate balance of the polarity kinase MARK2/Par-1 is required for proper cortical neuronal migration. J Neurosci. 2008; 28(22):5710-20. PMC: 6670809. DOI: 10.1523/JNEUROSCI.0911-08.2008. View

4.
Slim C, Lazaro-Dieguez F, Bijlard M, Toussaint M, de Bruin A, Du Q . Par1b induces asymmetric inheritance of plasma membrane domains via LGN-dependent mitotic spindle orientation in proliferating hepatocytes. PLoS Biol. 2013; 11(12):e1001739. PMC: 3866089. DOI: 10.1371/journal.pbio.1001739. View

5.
Sapir T, Shmueli A, Levy T, Timm T, Elbaum M, Mandelkow E . Antagonistic effects of doublecortin and MARK2/Par-1 in the developing cerebral cortex. J Neurosci. 2008; 28(48):13008-13. PMC: 6671805. DOI: 10.1523/JNEUROSCI.2363-08.2008. View