Results 91 to 100 of about 573,078 (335)

Leucine Carboxyl Methyltransferase Downregulation and Protein Phosphatase Methylesterase Upregulation Contribute Toward the Inhibition of Protein Phosphatase 2A by α-Synuclein

Frontiers in Aging Neuroscience, 2018
The pathology of Parkinson’s disease (PD) is characterized by intracellular neurofibrillary tangles of phosphorylated α-synuclein (α-syn). Protein phosphatase 2A (PP2A) is responsible for α-syn dephosphorylation. Previous work has demonstrated that α-syn
Hao Tian, Yongquan Lu, Jia Liu, Weijin Liu, Lingling Lu, Chunli Duan, Ge Gao, Hui Yang   +7 more
doaj   +1 more source

Structural mechanism for inhibition of PP2A-B56α and oncogenicity by CIP2A

Nature Communications, 2023
Tumour suppressors are inhibited in cancers and their reactivation could provide novel therapy opportunities. Here, the authors study the structural mechanism by which human tumour suppressor Protein Phosphatase 2A is inhibited in breast cancer cells by ...
Karolina Pavic, Nikhil Gupta, Judit Domènech Omella, Rita Derua, Anna Aakula, Riikka Huhtaniemi, Juha A. Määttä, Nico Höfflin, Juha Okkeri, Zhizhi Wang, Otto Kauko, Roosa Varjus, Henrik Honkanen, Daniel Abankwa, Maja Köhn, Vesa P. Hytönen, Wenqing Xu, Jakob Nilsson, Rebecca Page, Veerle Janssens, Alexander Leitner, Jukka Westermarck   +21 more
doaj   +1 more source

Regulation of autophagy by coordinated action of mTORC1 and protein phosphatase 2A

Nature Communications, 2015
Autophagy is a cellular catabolic process critical for cell viability and homoeostasis. Inhibition of mammalian target of rapamycin (mTOR) complex-1 (mTORC1) activates autophagy.
Pui-Mun wong, Yan Feng, Junru Wang, Rong Shi, Xuejun Jiang   +4 more
semanticscholar   +1 more source

Deactivation of Sphingosine Kinase 1 by Protein Phosphatase 2A [PDF]

Journal of Biological Chemistry, 2008
Sphingosine kinase 1 (SK1) is an important regulator of cellular signaling that has been implicated in a broad range of cellular processes. Cell exposure to a wide array of growth factors, cytokines, and other cell agonists can result in a rapid and transient increase in SK activity via an activating phosphorylation.
Barr, R., Lynn, H., Moretti, P., Khew-Goodall, Y., Pitson, S.   +4 more
openaire   +4 more sources

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source

Inhibition of protein phosphatase-1 and -2A by ellagitannins: structure-inhibitory potency relationships and influences on cellular systems

Journal of Enzyme Inhibition and Medicinal Chemistry, 2019
Several ellagitannins inhibited the activity of protein phosphatase-1 (PP1) and -2 A (PP2A) catalytic subunits (PP1c and PP2Ac) with preferential suppression of PP1c over PP2Ac.
Zoltán Kónya, Bálint Bécsi, Andrea Kiss, Dániel Horváth, Mária Raics, Katalin E. Kövér, Beáta Lontay, Ferenc Erdődi   +7 more
doaj   +1 more source

The Molecular Mechanism of Alpha-Synuclein Dependent Regulation of Protein Phosphatase 2A Activity

Cellular Physiology and Biochemistry, 2018
Background/Aims: Alpha-synuclein (α-Syn) is a neuronal protein that is highly implicated in Parkinson’s disease (PD), and protein phosphatase 2A (PP2A) is an important serine/threonine phosphatase that is associated with neurodegenerative diseases, such ...
Jing Qu, Hongxia Yan, Yuan Zheng, Fenqin Xue, Yan Zheng, Hongjuan Fang, Yongchang Chang, Hui Yang, Jianliang Zhang   +8 more
doaj   +1 more source

Cantharidin-binding protein: identification as protein phosphatase 2A. [PDF]

Proceedings of the National Academy of Sciences, 1992
The toxic effects of cantharidin from blister beetles and its analogs, including the herbicide endothall, are attributable to their high affinity and specificity for a cantharidin-binding protein (CBP). An ammonium sulfate precipitate of mouse liver cytosol was purified by five chromatographic steps to isolate CBP in 14% yield and > 99% purity as ...
Y M, Li, J E, Casida
openaire   +2 more sources

PYCR1 inhibition in bone marrow stromal cells enhances bortezomib sensitivity in multiple myeloma cells by altering their metabolism

Molecular Oncology, EarlyView.
This study investigated how PYCR1 inhibition in bone marrow stromal cells (BMSCs) indirectly affects multiple myeloma (MM) cell metabolism and viability. Culturing MM cells in conditioned medium from PYCR1‐silenced BMSCs impaired oxidative phosphorylation and increased sensitivity to bortezomib.
Inge Oudaert, Lauren van den Broecke, Osman Aksoy, Judith Lind, Sonia Vallet, Arne Van der Vreken, Gamze Ates, Ann Massie, Ken Maes, Kim De Veirman, Elke De Bruyne, Karin Vanderkerken, Klaus Podar, Eline Menu   +13 more
wiley   +1 more source

Inhibition of CDK9 enhances AML cell death induced by combined venetoclax and azacitidine

Molecular Oncology, EarlyView.
The CDK9 inhibitor AZD4573 downregulates c‐MYC and MCL‐1 to induce death of cytarabine (AraC)‐resistant AML cells. This enhances VEN + AZA‐induced cell death significantly more than any combination of two of the three drugs in AraC‐resistant AML cells.
Shuangshuang Wu, Jianlei Zhao, Aaban Asfar Azmi, Avanti Gupte, Jenna Thibodeau, Shuang Liu, Jinli Yang, Guan Wang, Holly Edwards, Lisa A. Polin, Juiwanna Kushner, Sijana H. Dzinic, Kathryn White, Julie Boerner, Maik Hüttemann, Jay Yang, Yue Wang, Jeffrey W. Taub, Yubin Ge   +18 more
wiley   +1 more source