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Yang R, Lu Y, Yin N, Faiola F. Transcriptomic Integration Analyses Uncover Common Bisphenol A Effects Across Species and Tissues Primarily Mediated by Disruption of JUN/FOS, EGFR, ER, PPARG, and P53 Pathways. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:19156-19168. [PMID: 37978927 DOI: 10.1021/acs.est.3c02016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Bisphenol A (BPA) is a common endocrine disruptor widely used in the production of electronic, sports, and medical equipment, as well as consumer products like milk bottles, dental sealants, and thermal paper. Despite its widespread use, current assessments of BPA exposure risks remain limited due to the lack of comprehensive cross-species comparative analyses. To address this gap, we conducted a study aimed at identifying genes and fundamental molecular processes consistently affected by BPA in various species and tissues, employing an effective data integration method and bioinformatic analyses. Our findings revealed that exposure to BPA led to significant changes in processes like lipid metabolism, proliferation, and apoptosis in the tissues/cells of mammals, fish, and nematodes. These processes were found to be commonly affected in adipose, liver, mammary, uterus, testes, and ovary tissues. Additionally, through an in-depth analysis of signaling pathways influenced by BPA in different species and tissues, we observed that the JUN/FOS, EGFR, ER, PPARG, and P53 pathways, along with their downstream key transcription factors and kinases, were all impacted by BPA. Our study provides compelling evidence that BPA indeed induces similar toxic effects across different species and tissues. Furthermore, our investigation sheds light on the underlying molecular mechanisms responsible for these toxic effects. By uncovering these mechanisms, we gain valuable insights into the potential health implications associated with BPA exposure, highlighting the importance of comprehensive assessments and awareness of this widespread endocrine disruptor.
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Affiliation(s)
- Renjun Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanping Lu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nuoya Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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2
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Oliviero G, Kovalchuk S, Rogowska-Wrzesinska A, Schwämmle V, Jensen ON. Distinct and diverse chromatin-proteomes of ageing mouse organs reveal protein signatures that correlate with physiological functions. eLife 2022; 11:73524. [PMID: 35259090 PMCID: PMC8933006 DOI: 10.7554/elife.73524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Temporal molecular changes in ageing mammalian organs are of relevance to disease aetiology because many age-related diseases are linked to changes in the transcriptional and epigenetic machinery that regulate gene expression. We performed quantitative proteome analysis of chromatin-enriched protein extracts to investigate the dynamics of the chromatin proteomes of the mouse brain, heart, lung, kidney, liver, and spleen at 3, 5, 10, and 15 months of age. Each organ exhibited a distinct chromatin proteome and sets of unique proteins. The brain and spleen chromatin proteomes were the most extensive, diverse, and heterogenous among the six organs. The spleen chromatin proteome appeared static during the lifespan, presenting a young phenotype that reflects the permanent alertness state and important role of this organ in physiological defence and immunity. We identified a total of 5928 proteins, including 2472 nuclear or chromatin-associated proteins across the six mouse organs. Up to 3125 proteins were quantified in each organ, demonstrating distinct and organ-specific temporal protein expression timelines and regulation at the post-translational level. Bioinformatics meta-analysis of these chromatin proteomes revealed distinct physiological and ageing-related features for each organ. Our results demonstrate the efficiency of organelle-specific proteomics for in vivo studies of a model organism and consolidate the hypothesis that chromatin-associated proteins are involved in distinct and specific physiological functions in ageing organs.
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Affiliation(s)
- Giorgio Oliviero
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Sergey Kovalchuk
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | | | - Veit Schwämmle
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Ole N Jensen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
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Lee NR, Kim DY, Jin H, Meng R, Chai OH, Kim SH, Park BH, Kim SM. Inactivation of the Akt/FOXM1 Signaling Pathway by Panobinostat Suppresses the Proliferation and Metastasis of Gastric Cancer Cells. Int J Mol Sci 2021; 22:5955. [PMID: 34073071 PMCID: PMC8199011 DOI: 10.3390/ijms22115955] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer is the fifth most common cancer and the third leading cause of cancer-related deaths worldwide. Histone deacetylase (HDAC) inhibitors are a new class of cytostatic agents available for the treatment of various cancers and diseases. Although numerous clinical and pre-clinical trials on the anticancer effects of panobinostat have been conducted, only a few reports have investigated its efficacy in gastric cancer. The present study aimed to investigate the effects of panobinostat in gastric cancer cells. Panobinostat significantly inhibited the cell viability and proliferation of the gastric cancer cell lines SNU484 and SNU638 in a dose-dependent manner; it reduced the colony-forming ability of these cells. Moreover, it induced apoptosis as indicated by increased protein levels of cleaved poly ADP-ribose polymerase and cleaved caspase-3. Panobinostat induced the G2/M cell cycle arrest in SNU484 and SNU638 cells and subsequently decreased the G2/M phase regulatory-associated protein expression of p-Wee1, Myt1, and Cdc2. Furthermore, panobinostat significantly inhibited the metastasis of SNU484 and SNU638 cells by regulating the expression of MMP-9 and E-cadherin. Further, it decreased the protein levels of p-Akt and forkhead box protein M1 (FOXM1). These effects were reversed by the Akt agonist SC79 and were accelerated by the Akt inhibitor LY2940002. Moreover, tumor growth in xenograft animal experiments was suppressed by panobinostat. These results indicated that panobinostat inhibits the proliferation, metastasis, and cell cycle progression of gastric cancer cells by promoting apoptosis and inactivating Akt/FOXM1 signaling. Cumulatively, our present study suggests that panobinostat is a potential drug for the treatment of gastric cancer.
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Affiliation(s)
- Na-Ri Lee
- Division of Hematology/Oncology, Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju 54907, Korea;
- Research Institute of Clinical Medicine, Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
| | - Da-Yeah Kim
- Department of Physiology, Institute of Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea; (D.-Y.K.); (R.M.)
| | - Hua Jin
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China;
| | - Ruoyu Meng
- Department of Physiology, Institute of Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea; (D.-Y.K.); (R.M.)
| | - Ok Hee Chai
- Department of Anatomy, Institute of Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea;
| | - Seong-Hun Kim
- Research Institute of Clinical Medicine, Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
- Department of Internal Medicine, Division of Gastroentrology, Jeonbuk National University Medical School, Jeonbuk National University Hospital, Jeonju 54907, Korea;
| | - Byung-Hyun Park
- Department of Biochemistry, Jeonbuk National University Medical School, Jeonju 54907, Korea;
| | - Soo Mi Kim
- Department of Physiology, Institute of Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea; (D.-Y.K.); (R.M.)
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4
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VanGenderen C, Harkness TAA, Arnason TG. The role of Anaphase Promoting Complex activation, inhibition and substrates in cancer development and progression. Aging (Albany NY) 2020; 12:15818-15855. [PMID: 32805721 PMCID: PMC7467358 DOI: 10.18632/aging.103792] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/14/2020] [Indexed: 02/07/2023]
Abstract
The Anaphase Promoting Complex (APC), a multi-subunit ubiquitin ligase, facilitates mitotic and G1 progression, and is now recognized to play a role in maintaining genomic stability. Many APC substrates have been observed overexpressed in multiple cancer types, such as CDC20, the Aurora A and B kinases, and Forkhead box M1 (FOXM1), suggesting APC activity is important for cell health. We performed BioGRID analyses of the APC coactivators CDC20 and CDH1, which revealed that at least 69 proteins serve as APC substrates, with 60 of them identified as playing a role in tumor promotion and 9 involved in tumor suppression. While these substrates and their association with malignancies have been studied in isolation, the possibility exists that generalized APC dysfunction could result in the inappropriate stabilization of multiple APC targets, thereby changing tumor behavior and treatment responsiveness. It is also possible that the APC itself plays a crucial role in tumorigenesis through its regulation of mitotic progression. In this review the connections between APC activity and dysregulation will be discussed with regards to cell cycle dysfunction and chromosome instability in cancer, along with the individual roles that the accumulation of various APC substrates may play in cancer progression.
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Affiliation(s)
- Cordell VanGenderen
- Department of Anatomy, Physiology and Pharmacology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Troy Anthony Alan Harkness
- Department of Biochemistry, Microbiology and Immunology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Terra Gayle Arnason
- Department of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada.,Department of Anatomy, Physiology and Pharmacology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
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Harkness TAA. Activating the Anaphase Promoting Complex to Enhance Genomic Stability and Prolong Lifespan. Int J Mol Sci 2018; 19:ijms19071888. [PMID: 29954095 PMCID: PMC6073722 DOI: 10.3390/ijms19071888] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/19/2018] [Accepted: 06/20/2018] [Indexed: 12/19/2022] Open
Abstract
In aging cells, genomic instability is now recognized as a hallmark event. Throughout life, cells encounter multiple endogenous and exogenous DNA damaging events that are mostly repaired, but inevitably DNA mutations, chromosome rearrangements, and epigenetic deregulation begins to mount. Now that people are living longer, more and more late life time is spent suffering from age-related disease, in which genomic instability plays a critical role. However, several major questions remain heavily debated, such as the following: When does aging start? How long can we live? In order to minimize the impact of genomic instability on longevity, it is important to understand when aging starts, and to ensure repair mechanisms remain optimal from the very start to the very end. In this review, the interplay between the stress and nutrient response networks, and the regulation of homeostasis and genomic stability, is discussed. Mechanisms that link these two networks are predicted to be key lifespan determinants. The Anaphase Promoting Complex (APC), a large evolutionarily conserved ubiquitin ligase, can potentially serve this need. Recent work demonstrates that the APC maintains genomic stability, mounts a stress response, and increases longevity in yeast. Furthermore, inhibition of APC activity by glucose and nutrient response factors indicates a tight link between the APC and the stress/nutrient response networks.
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Affiliation(s)
- Troy A A Harkness
- Department of Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada.
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Ostrow AZ, Aparicio OM. Identification of Fkh1 and Fkh2 binding site variants associated with dynamically bound DNA elements including replication origins. Nucleus 2017; 8:600-604. [PMID: 29099275 PMCID: PMC5788546 DOI: 10.1080/19491034.2017.1380139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Forkhead Box (Fox) DNA binding proteins control multiple genome activities, including transcription, replication, and repair. These activities are organized spatially and temporally in the nucleus, and Fox proteins Fkh1 and Fkh2 have emerged as regulators of long-range chromosomal interactions involved with these activities, such as the clustering of replication origins programmed for early initiation. Fkh1 and Fkh2 bind a subset of replication origins and are thought to dimerize to mediate long-range chromosomal contacts between these origins. The binding of Fkh1 and/or Fkh2 (Fkh1/2) to replication origins and the recombination enhancer (RE), which is involved in DNA repair required for mating-type switching, is cell cycle-regulated and thus appears to be more dynamic than Fkh1/2 binding at regulated target genes. Here we report the identification of Fkh1/2 binding sequence variants at replication origins and the RE compared with Fkh1/2 binding sequences found at target genes of the CLB2 group. These different binding sequences have previously been characterized as weak and strong, respectively, suggesting that the presence of weak sites contributes to more dynamic interactions at replication origins and RE, possibly facilitated by Fkh1/2 dimerization and cooperative interactions with accessory proteins. We discuss the wealth of regulatory potential imbued in these features of the DNA and its binding proteins.
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Affiliation(s)
- A Zachary Ostrow
- a Molecular and Computational Biology Program , University of Southern California , Los Angeles , CA , USA
| | - Oscar M Aparicio
- a Molecular and Computational Biology Program , University of Southern California , Los Angeles , CA , USA
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Malo ME, Postnikoff SDL, Arnason TG, Harkness TAA. Mitotic degradation of yeast Fkh1 by the Anaphase Promoting Complex is required for normal longevity, genomic stability and stress resistance. Aging (Albany NY) 2017; 8:810-30. [PMID: 27099939 PMCID: PMC4925830 DOI: 10.18632/aging.100949] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 04/03/2016] [Indexed: 02/07/2023]
Abstract
The Saccharomyces cerevisiae Forkhead Box (Fox) orthologs, Forkheads (Fkh) 1 and 2, are conserved transcription factors required for stress response, cell cycle progression and longevity. These yeast proteins play a key role in mitotic progression through activation of the ubiquitin E3 ligase Anaphase Promoting Complex (APC) via transcriptional control. Here, we used genetic and molecular analyses to demonstrate that the APC E3 activity is necessary for mitotic Fkh1 protein degradation and subsequent cell cycle progression. We report that Fkh1 protein degradation occurs specifically during mitosis, requires APCCdc20 and proteasome activity, and that a stable Fkh1 mutant reduces normal chronological lifespan, increases genomic instability, and increases sensitivity to stress. Our data supports a model whereby cell cycle progression through mitosis and G1 requires the targeted degradation of Fkh1 by the APC. This is significant to many fields as these results impact our understanding of the mechanisms underpinning the control of aging and cancer.
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Affiliation(s)
- Mackenzie E Malo
- Department of Anatomy and Cell Biology, University of Saskatchewan, Saskatchewan S7N 5E5, Canada
| | - Spike D L Postnikoff
- Department of Anatomy and Cell Biology, University of Saskatchewan, Saskatchewan S7N 5E5, Canada
| | - Terra G Arnason
- Department of Anatomy and Cell Biology, University of Saskatchewan, Saskatchewan S7N 5E5, Canada.,Department of Medicine, University of Saskatchewan, Saskatchewan S7N 5E5, Canada
| | - Troy A A Harkness
- Department of Anatomy and Cell Biology, University of Saskatchewan, Saskatchewan S7N 5E5, Canada
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8
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Jiao R, Postnikoff S, Harkness TA, Arnason TG. The SNF1 Kinase Ubiquitin-associated Domain Restrains Its Activation, Activity, and the Yeast Life Span. J Biol Chem 2015; 290:15393-15404. [PMID: 25869125 DOI: 10.1074/jbc.m115.647032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Indexed: 02/04/2023] Open
Abstract
The enzyme family of heterotrimeric AMP-dependent protein kinases is activated upon low energy states, conferring a switch toward energy-conserving metabolic pathways through immediate kinase actions on enzyme targets and delayed alterations in gene expression through its nuclear relocalization. This family is evolutionarily conserved, including the presence of a ubiquitin-associated (UBA) motif in most catalytic subunits. The potential for the UBA domain to promote protein associations or direct subcellular location, as seen in other UBA-containing proteins, led us to query whether the UBA domain within the yeast AMP-dependent protein kinase ortholog, SNF1 kinase, was important in these aspects of its regulation. Here, we demonstrate that conserved UBA motif mutations significantly alter SNF1 kinase activation and biological activity, including enhanced allosteric subunit associations and increased oxidative stress resistance and life span. Significantly, the enhanced UBA-dependent longevity and oxidative stress response are at least partially dependent on the Fkh1 and Fkh2 stress response transcription factors, which in turn are shown to influence Snf1 gene expression.
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Affiliation(s)
- Rubin Jiao
- Departments of Anatomy and Cell Biology and University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Spike Postnikoff
- Departments of Anatomy and Cell Biology and University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Troy A Harkness
- Departments of Anatomy and Cell Biology and University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Terra G Arnason
- Departments of Anatomy and Cell Biology and University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada; Medicine, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada.
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Epigenetic modulation with HDAC inhibitor CG200745 induces anti-proliferation in non-small cell lung cancer cells. PLoS One 2015; 10:e0119379. [PMID: 25781604 PMCID: PMC4363698 DOI: 10.1371/journal.pone.0119379] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 01/30/2015] [Indexed: 11/19/2022] Open
Abstract
Histone modification plays a pivotal role on gene regulation, as regarded as global epigenetic markers, especially in tumor related genes. Hence, chemical approaches targeting histone-modifying enzymes have emerged onto the main stage of anticancer drug discovery. Here, we investigated the therapeutic potentials and mechanistic roles of the recently developed histone deacetylase inhibitor, CG200745, in non-small cell lung cancer cells. Treatment with CG200745 increased the global level of histone acetylation, resulting in the inhibition of cell proliferation. ChIP-on-chip analysis with an H4K16ac antibody showed altered H4K16 acetylation on genes critical for cell growth inhibition, although decreased at the transcription start site of a subset of genes. Altered H4K16ac was associated with changes in mRNA expression of the corresponding genes, which were further validated in quantitative RT-PCR and western blotting assays. Our results demonstrated that CG200745 causes NSCLC cell growth inhibition through epigenetic modification of critical genes in cancer cell survival, providing pivotal clues as a promising chemotherapeutics against lung cancer.
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Havelka D, Kučera O, Deriu MA, Cifra M. Electro-acoustic behavior of the mitotic spindle: a semi-classical coarse-grained model. PLoS One 2014; 9:e86501. [PMID: 24497952 PMCID: PMC3907432 DOI: 10.1371/journal.pone.0086501] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Accepted: 12/09/2013] [Indexed: 12/25/2022] Open
Abstract
The regulation of chromosome separation during mitosis is not fully understood yet. Microtubules forming mitotic spindles are targets of treatment strategies which are aimed at (i) the triggering of the apoptosis or (ii) the interruption of uncontrolled cell division. Despite these facts, only few physical models relating to the dynamics of mitotic spindles exist up to now. In this paper, we present the first electromechanical model which enables calculation of the electromagnetic field coupled to acoustic vibrations of the mitotic spindle. This electromagnetic field originates from the electrical polarity of microtubules which form the mitotic spindle. The model is based on the approximation of resonantly vibrating microtubules by a network of oscillating electric dipoles. Our computational results predict the existence of a rapidly changing electric field which is generated by either driven or endogenous vibrations of the mitotic spindle. For certain values of parameters, the intensity of the electric field and its gradient reach values which may exert a not-inconsiderable force on chromosomes which are aligned in the spindle midzone. Our model may describe possible mechanisms of the effects of ultra-short electrical and mechanical pulses on dividing cells--a strategy used in novel methods for cancer treatment.
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Affiliation(s)
- Daniel Havelka
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague, Czechia
- Department of Electromagnetic Field, Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czechia
- * E-mail:
| | - Ondřej Kučera
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague, Czechia
| | - Marco A. Deriu
- Institute of Computer Integrated Manufacturing for Sustainable Innovation, Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland (SUPSI), Manno, Switzerland
| | - Michal Cifra
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague, Czechia
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Titorenko VI, Harkness TAA. The spatiotemporal dynamics of longevity-defining cellular processes and its modulation by genetic, dietary, and pharmacological anti-aging interventions. Front Physiol 2012; 3:419. [PMID: 23118730 PMCID: PMC3484328 DOI: 10.3389/fphys.2012.00419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2012] [Accepted: 10/16/2012] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Troy A. A. Harkness
- Department of Anatomy and Cell Biology, University of SaskatchewanSaskatoon, SK, Canada,*Correspondence: ;
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