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High glucose exposure promotes activation of protein phosphatase 2A in rodent islets and INS-1 832/13 β-cells by increasing the posttranslational carboxylmethylation of its catalytic subunit.

Arora DK, Machhadieh B, Matti A, Wadzinski BE, Ramanadham S, Kowluru A.

Endocrinology. 2014 Feb;155(2):380-91. doi: 10.1210/en.2013-1773. Epub 2013 Nov 21.


Regulation by glucose and calcium of the carboxylmethylation of the catalytic subunit of protein phosphatase 2A in insulin-secreting INS-1 cells.

Palanivel R, Veluthakal R, Kowluru A.

Am J Physiol Endocrinol Metab. 2004 Jun;286(6):E1032-41. Epub 2004 Feb 17.


The B55α-containing PP2A holoenzyme dephosphorylates FOXO1 in islet β-cells under oxidative stress.

Yan L, Guo S, Brault M, Harmon J, Robertson RP, Hamid R, Stein R, Yang E.

Biochem J. 2012 Jun 1;444(2):239-47. doi: 10.1042/BJ20111606.


Protein farnesylation-dependent Raf/extracellular signal-related kinase signaling links to cytoskeletal remodeling to facilitate glucose-induced insulin secretion in pancreatic beta-cells.

Kowluru A, Veluthakal R, Rhodes CJ, Kamath V, Syed I, Koch BJ.

Diabetes. 2010 Apr;59(4):967-77. doi: 10.2337/db09-1334. Epub 2010 Jan 13.


Glucotoxic conditions induce endoplasmic reticulum stress to cause caspase 3 mediated lamin B degradation in pancreatic β-cells: protection by nifedipine.

Syeda K, Mohammed AM, Arora DK, Kowluru A.

Biochem Pharmacol. 2013 Nov 1;86(9):1338-46. doi: 10.1016/j.bcp.2013.08.023. Epub 2013 Aug 27.


Arf nucleotide binding site opener [ARNO] promotes sequential activation of Arf6, Cdc42 and Rac1 and insulin secretion in INS 832/13 β-cells and rat islets.

Jayaram B, Syed I, Kyathanahalli CN, Rhodes CJ, Kowluru A.

Biochem Pharmacol. 2011 Apr 15;81(8):1016-27. doi: 10.1016/j.bcp.2011.01.006. Epub 2011 Jan 26.


Deregulation of CREB signaling pathway induced by chronic hyperglycemia downregulates NeuroD transcription.

Cho IS, Jung M, Kwon KS, Moon E, Cho JH, Yoon KH, Kim JW, Lee YD, Kim SS, Suh-Kim H.

PLoS One. 2012;7(4):e34860. doi: 10.1371/journal.pone.0034860. Epub 2012 Apr 3.


A farnesylated G-protein suppresses Akt phosphorylation in INS 832/13 cells and normal rat islets: regulation by pertussis toxin and PGE₂.

Kyathanahalli CN, Kowluru A.

Biochem Pharmacol. 2011 May 15;81(10):1237-47. doi: 10.1016/j.bcp.2011.03.002. Epub 2011 Mar 23.


Regulation of glucose- and mitochondrial fuel-induced insulin secretion by a cytosolic protein histidine phosphatase in pancreatic beta-cells.

Kamath V, Kyathanahalli CN, Jayaram B, Syed I, Olson LK, Ludwig K, Klumpp S, Krieglstein J, Kowluru A.

Am J Physiol Endocrinol Metab. 2010 Aug;299(2):E276-86. doi: 10.1152/ajpendo.00091.2010. Epub 2010 May 25.


Hyperactivation of protein phosphatase 2A in models of glucolipotoxicity and diabetes: potential mechanisms and functional consequences.

Kowluru A, Matti A.

Biochem Pharmacol. 2012 Sep 1;84(5):591-7. doi: 10.1016/j.bcp.2012.05.003. Epub 2012 May 11. Review.


Phagocyte-like NADPH oxidase generates ROS in INS 832/13 cells and rat islets: role of protein prenylation.

Syed I, Kyathanahalli CN, Kowluru A.

Am J Physiol Regul Integr Comp Physiol. 2011 Mar;300(3):R756-62. doi: 10.1152/ajpregu.00786.2010. Epub 2011 Jan 12.


A crucial role for RACK1 in the regulation of glucose-stimulated IRE1alpha activation in pancreatic beta cells.

Qiu Y, Mao T, Zhang Y, Shao M, You J, Ding Q, Chen Y, Wu D, Xie D, Lin X, Gao X, Kaufman RJ, Li W, Liu Y.

Sci Signal. 2010 Jan 26;3(106):ra7. doi: 10.1126/scisignal.2000514.


Nodal induces apoptosis through activation of the ALK7 signaling pathway in pancreatic INS-1 β-cells.

Zhao F, Huang F, Tang M, Li X, Zhang N, Amfilochiadis A, Li Y, Hu R, Jin T, Peng C, Wang Q.

Am J Physiol Endocrinol Metab. 2012 Jul 1;303(1):E132-43. doi: 10.1152/ajpendo.00074.2012. Epub 2012 May 1.


Glycated albumin causes pancreatic β-cells dysfunction through autophagy dysfunction.

Song YM, Song SO, You YH, Yoon KH, Kang ES, Cha BS, Lee HC, Kim JW, Lee BW.

Endocrinology. 2013 Aug;154(8):2626-39. doi: 10.1210/en.2013-1031. Epub 2013 May 22.

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