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Hernandez JL, Davda D, Majmudar JD, Won SJ, Prakash A, Choi AI, Martin BR. Correlated S-palmitoylation profiling of Snail-induced epithelial to mesenchymal transition. MOLECULAR BIOSYSTEMS 2017; 12:1799-808. [PMID: 27030425 DOI: 10.1039/c6mb00019c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Epithelial cells form spatially-organized adhesion complexes that establish polarity gradients, regulate cell proliferation, and direct wound healing. As cells accumulate oncogenic mutations, these key tumor suppression mechanisms are disrupted, eliminating many adhesion complexes and bypassing contact inhibition. The transcription factor Snail is often expressed in malignant cancers, where it promotes transcriptional reprogramming to drive epithelial-mesenchymal transition (EMT) and establishes a more invasive state. S-Palmitoylation describes the fatty-acyl post-translational modification of cysteine residues in proteins, and is required for membrane anchoring, trafficking, localization and function of hundreds of proteins involved in cell growth, polarity, and signaling. Since Snail-expression disrupts apico-basolateral cell polarity, we asked if Snail-dependent transformation induces proteome-wide changes in S-palmitoylation. MCF10A breast cancer cells were retrovirally transduced with Snail and correlated proteome-wide changes in protein abundance and S-palmitoylation were profiled by using stable isotope labeling in cell culture with amino acid (SILAC) mass spectrometry. This analysis identified increased levels of proteins involved in migration, glycolysis, and cell junction remodeling, and decreased levels of proteins involved in cell adhesion. Overall, protein S-palmitoylation is highly correlated with protein abundance, yet for a subset of proteins, this correlation is uncoupled. These findings suggest that Snail-overexpression affects the S-palmitoylation cycle of some proteins, which may participate in cell polarity and tumor suppression.
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Affiliation(s)
- Jeannie L Hernandez
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA.
| | - Dahvid Davda
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA. and Program in Chemical Biology, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA
| | - Jaimeen D Majmudar
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA.
| | - Sang Joon Won
- Program in Chemical Biology, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA
| | - Ashesh Prakash
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA.
| | - Alexandria I Choi
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA.
| | - Brent R Martin
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA. and Program in Chemical Biology, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109, USA
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Lorendeau D, Christen S, Rinaldi G, Fendt SM. Metabolic control of signalling pathways and metabolic auto-regulation. Biol Cell 2015; 107:251-72. [DOI: 10.1111/boc.201500015] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 04/20/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Doriane Lorendeau
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
| | - Stefan Christen
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
| | - Gianmarco Rinaldi
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
| | - Sarah-Maria Fendt
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
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Stine ZE, Dang CV. Stress eating and tuning out: cancer cells re-wire metabolism to counter stress. Crit Rev Biochem Mol Biol 2013; 48:609-19. [PMID: 24099138 DOI: 10.3109/10409238.2013.844093] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Cancer cells reprogram metabolism to maintain rapid proliferation under often stressful conditions. Glycolysis and glutaminolysis are two central pathways that fuel cancer metabolism. Allosteric regulation and metabolite driven post-translational modifications of key metabolic enzymes allow cancer cells glycolysis and glutaminolysis to respond to changes in nutrient availability and the tumor microenvironment. While increased aerobic glycolysis (the Warburg effect) has been a noted part of cancer metabolism for over 80 years, recent work has shown that the elevated levels of glycolytic intermediates are critical to cancer growth and metabolism due to their ability to feed into the anabolic pathways branching off glycolysis such as the pentose phosphate pathway and serine biosynthesis pathway. The key glycolytic enzymes phosphofructokinase-1 (PFK1), pyruvate kinase (PKM2) and phosphoglycerate mutase 1 (PGAM1) are regulated by upstream and downstream metabolites to balance glycolytic flux with flux through anabolic pathways. Glutamine regulation is tightly controlled by metabolic intermediates that allosterically inhibit and activate glutamate dehydrogenase, which fuels the tricarboxylic acid cycle by converting glutamine derived glutamate to α-ketoglutarate. The elucidation of these key allosteric regulatory hubs in cancer metabolism will be essential for understanding and predicting how cancer cells will respond to drugs that target metabolism. Additionally, identification of the structures involved in allosteric regulation will inform the design of anti-metabolism drugs which bypass the off-target effects of substrate mimics. Hence, this review aims to provide an overview of allosteric control of glycolysis and glutaminolysis.
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Affiliation(s)
- Zachary E Stine
- Abramson Cancer Center, Abramson Family Cancer Research Institute, University of Pennsylvania , Philadelphia, PA , USA
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