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Balogh G, Péter M, Glatz A, Gombos I, Török Z, Horváth I, Harwood JL, Vígh L. Key role of lipids in heat stress management. FEBS Lett 2013; 587:1970-80. [PMID: 23684645 DOI: 10.1016/j.febslet.2013.05.016] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 05/06/2013] [Indexed: 12/15/2022]
Abstract
Heat stress is a common and, therefore, an important environmental impact on cells and organisms. While much attention has been paid to severe heat stress, moderate temperature elevations are also important. Here we discuss temperature sensing and how responses to heat stress are not necessarily dependent on denatured proteins. Indeed, it is clear that membrane lipids have a pivotal function. Details of membrane lipid changes and the associated production of signalling metabolites are described and suggestions made as to how the interconnected signalling network could be modified for helpful intervention in disease.
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Affiliation(s)
- Gábor Balogh
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, H-6701 Szeged, Hungary
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Angelucci C, Maulucci G, Lama G, Proietti G, Colabianchi A, Papi M, Maiorana A, De Spirito M, Micera A, Balzamino OB, Di Leone A, Masetti R, Sica G. Epithelial-stromal interactions in human breast cancer: effects on adhesion, plasma membrane fluidity and migration speed and directness. PLoS One 2012; 7:e50804. [PMID: 23251387 PMCID: PMC3519494 DOI: 10.1371/journal.pone.0050804] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2012] [Accepted: 10/25/2012] [Indexed: 02/04/2023] Open
Abstract
Interactions occurring between malignant cells and the stromal microenvironment heavily influence tumor progression. We investigated whether this cross-talk affects some molecular and functional aspects specifically correlated with the invasive phenotype of breast tumor cells (i.e. adhesion molecule expression, membrane fluidity, migration) by co-culturing mammary cancer cells exhibiting different degrees of metastatic potential (MDA-MB-231>MCF-7) with fibroblasts isolated from breast healthy skin (normal fibroblasts, NFs) or from breast tumor stroma (cancer-associated fibroblasts, CAFs) in 2D or 3D (nodules) cultures. Confocal immunofluorescence analysis of the epithelial adhesion molecule E-cadherin on frozen nodule sections demonstrated that NFs and CAFs, respectively, induced or inhibited its expression in MCF-7 cells. An increase in the mesenchymal adhesion protein N-cadherin was observed in CAFs, but not in NFs, as a result of the interaction with both kinds of cancer cells. CAFs, in turn, promoted N-cadherin up-regulation in MDA-MB-231 cells and its de novo expression in MCF-7 cells. Beyond promotion of “cadherin switching”, another sign of the CAF-triggered epithelial-mesenchymal transition (EMT) was the induction of vimentin expression in MCF-7 cells. Plasma membrane labeling of monolayer cultures with the fluorescent probe Laurdan showed an enhancement of the membrane fluidity in cancer cells co-cultured with NFs or CAFs. An increase in lipid packing density of fibroblast membranes was promoted by MCF-7 cells. Time-lapsed cell tracking analysis of mammary cancer cells co-cultured with NFs or CAFs revealed an enhancement of tumor cell migration velocity, even with a marked increase in the directness induced by CAFs. Our results demonstrate a reciprocal influence of mammary cancer and fibroblasts on various adhesiveness/invasiveness features. Notably, CAFs' ability to promote EMT, reduction of cell adhesion, increase in membrane fluidity, and migration velocity and directness in mammary cancer cells can be viewed as an overall progression- and invasion-promoting effect.
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Affiliation(s)
- Cristiana Angelucci
- Istituto di Istologia ed Embriologia, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Giuseppe Maulucci
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Gina Lama
- Istituto di Istologia ed Embriologia, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Gabriella Proietti
- Istituto di Istologia ed Embriologia, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Anna Colabianchi
- Istituto di Istologia ed Embriologia, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Massimiliano Papi
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Roma, Italia
| | | | - Marco De Spirito
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Roma, Italia
- * E-mail:
| | - Alessandra Micera
- Istituto di Ricovero e Cura a Carattere Scientifico - Fondazione G.B. Bietti, Roma, Italia
| | - Omar Bijorn Balzamino
- Istituto di Ricovero e Cura a Carattere Scientifico - Fondazione G.B. Bietti, Roma, Italia
| | - Alba Di Leone
- Dipartimento per la Tutela della Salute della Donna e della Vita Nascente, del Bambino e dell'Adolescente - Unità Operativa di Chirurgia Senologica, Facoltà di Medicina e Chirurgia “A. Gemelli”, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Riccardo Masetti
- Dipartimento per la Tutela della Salute della Donna e della Vita Nascente, del Bambino e dell'Adolescente - Unità Operativa di Chirurgia Senologica, Facoltà di Medicina e Chirurgia “A. Gemelli”, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Gigliola Sica
- Istituto di Istologia ed Embriologia, Università Cattolica del Sacro Cuore, Roma, Italia
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Cadenas C, Vosbeck S, Hein EM, Hellwig B, Langer A, Hayen H, Franckenstein D, Büttner B, Hammad S, Marchan R, Hermes M, Selinski S, Rahnenführer J, Peksel B, Török Z, Vígh L, Hengstler JG. Glycerophospholipid profile in oncogene-induced senescence. Biochim Biophys Acta Mol Cell Biol Lipids 2012; 1821:1256-68. [DOI: 10.1016/j.bbalip.2011.11.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 11/14/2011] [Accepted: 11/17/2011] [Indexed: 11/27/2022]
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Péter M, Balogh G, Gombos I, Liebisch G, Horváth I, Török Z, Nagy E, Maslyanko A, Benkő S, Schmitz G, Harwood JL, Vígh L. Nutritional lipid supply can control the heat shock response of B16 melanoma cells in culture. Mol Membr Biol 2012; 29:274-89. [PMID: 22583025 DOI: 10.3109/09687688.2012.680203] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The in vitro culture of cells offers an extremely valuable method for probing biochemical questions and many commonly-used protocols are available. For mammalian cells a source of lipid is usually provided in the serum component. In this study we examined the question as to whether the nature of the lipid could become limiting at high cell densities and, therefore, prospectively influence the metabolism and physiology of the cells themselves. When B16 mouse melanoma cells were cultured, we noted a marked decrease in the proportions of n-3 and n-6 polyunsaturated fatty acids (PUFAs) with increasing cell density. This was despite considerable quantities of these PUFAs still remaining in the culture medium and seemed to reflect the preferential uptake of unesterified PUFA rather than other lipid classes from the media. The reduction in B16 total PUFA was reflected in changes in about 70% of the molecular species of membrane phosphoglycerides which were analysed by mass spectrometry. The importance of this finding lies in the need for n-3 and n-6 PUFA in mammalian cells (which cannot synthesize their own). Although the cholesterol content of cells was unchanged the amount of cholesterol enrichment in membrane rafts (as assessed by fluorescence) was severely decreased, simultaneous with a reduced heat shock response following exposure to 42°C. These data emphasize the pivotal role of nutrient supply (in this case for PUFAs) in modifying responses to stress and highlight the need for the careful control of culture conditions when assessing cellular responses in vitro.
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Affiliation(s)
- Mária Péter
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
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56
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Gombos I, Crul T, Piotto S, Güngör B, Török Z, Balogh G, Péter M, Slotte JP, Campana F, Pilbat AM, Hunya Á, Tóth N, Literati-Nagy Z, Vígh L, Glatz A, Brameshuber M, Schütz GJ, Hevener A, Febbraio MA, Horváth I, Vígh L. Membrane-lipid therapy in operation: the HSP co-inducer BGP-15 activates stress signal transduction pathways by remodeling plasma membrane rafts. PLoS One 2011; 6:e28818. [PMID: 22174906 PMCID: PMC3236211 DOI: 10.1371/journal.pone.0028818] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 11/15/2011] [Indexed: 01/22/2023] Open
Abstract
Aging and pathophysiological conditions are linked to membrane changes which modulate membrane-controlled molecular switches, causing dysregulated heat shock protein (HSP) expression. HSP co-inducer hydroxylamines such as BGP-15 provide advanced therapeutic candidates for many diseases since they preferentially affect stressed cells and are unlikely have major side effects. In the present study in vitro molecular dynamic simulation, experiments with lipid monolayers and in vivo ultrasensitive fluorescence microscopy showed that BGP-15 alters the organization of cholesterol-rich membrane domains. Imaging of nanoscopic long-lived platforms using the raft marker glycosylphosphatidylinositol-anchored monomeric green fluorescent protein diffusing in the live Chinese hamster ovary (CHO) cell plasma membrane demonstrated that BGP-15 prevents the transient structural disintegration of rafts induced by fever-type heat stress. Moreover, BGP-15 was able to remodel cholesterol-enriched lipid platforms reminiscent of those observed earlier following non-lethal heat priming or membrane stress, and were shown to be obligate for the generation and transmission of stress signals. BGP-15 activation of HSP expression in B16-F10 mouse melanoma cells involves the Rac1 signaling cascade in accordance with the previous observation that cholesterol affects the targeting of Rac1 to membranes. Finally, in a human embryonic kidney cell line we demonstrate that BGP-15 is able to inhibit the rapid heat shock factor 1 (HSF1) acetylation monitored during the early phase of heat stress, thereby promoting a prolonged duration of HSF1 binding to heat shock elements. Taken together, our results indicate that BGP-15 has the potential to become a new class of pharmaceuticals for use in ‘membrane-lipid therapy’ to combat many various protein-misfolding diseases associated with aging.
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Affiliation(s)
- Imre Gombos
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Tim Crul
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Stefano Piotto
- Department of Pharmaceutical and Biomedical Sciences, University of Salerno, Salerno, Italy
| | - Burcin Güngör
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Zsolt Török
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Gábor Balogh
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Mária Péter
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - J. Peter Slotte
- Department of Biosciences, Abo Akademi University, Turku, Finland
| | - Federica Campana
- Department of Pharmaceutical and Biomedical Sciences, University of Salerno, Salerno, Italy
| | - Ana-Maria Pilbat
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | | | - Noémi Tóth
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Zsuzsanna Literati-Nagy
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - László Vígh
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
- * E-mail:
| | - Attila Glatz
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Mario Brameshuber
- Institute of Applied Physics, Vienna University of Technology, Vienna, Austria
| | - Gerhard J. Schütz
- Institute of Applied Physics, Vienna University of Technology, Vienna, Austria
| | - Andrea Hevener
- Department of Medicine, Division of Endocrinology, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Mark A. Febbraio
- Cellular and Molecular Metabolism Laboratory, Baker Heart and Diabetes Institute, Prahran, Victoria, Australia
| | - Ibolya Horváth
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - László Vígh
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
- * E-mail:
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