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Imig D, Pollak N, Allgöwer F, Rehm M. Sample-based modeling reveals bidirectional interplay between cell cycle progression and extrinsic apoptosis. PLoS Comput Biol 2020; 16:e1007812. [PMID: 32497127 PMCID: PMC7271993 DOI: 10.1371/journal.pcbi.1007812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 03/23/2020] [Indexed: 11/22/2022] Open
Abstract
Apoptotic cell death can be initiated through the extrinsic and intrinsic signaling pathways. While cell cycle progression promotes the responsiveness to intrinsic apoptosis induced by genotoxic stress or spindle poisons, this has not yet been studied conclusively for extrinsic apoptosis. Here, we combined fluorescence-based time-lapse monitoring of cell cycle progression and cell death execution by long-term time-lapse microscopy with sampling-based mathematical modeling to study cell cycle dependency of TRAIL-induced extrinsic apoptosis in NCI-H460/geminin cells. In particular, we investigated the interaction of cell death timing and progression of cell cycle states. We not only found that TRAIL prolongs cycle progression, but in reverse also that cell cycle progression affects the kinetics of TRAIL-induced apoptosis: Cells exposed to TRAIL in G1 died significantly faster than cells stimulated in S/G2/M. The connection between cell cycle state and apoptosis progression was captured by developing a mathematical model, for which parameter estimation revealed that apoptosis progression decelerates in the second half of the cell cycle. Similar results were also obtained when studying HCT-116 cells. Our results therefore reject the null hypothesis of independence between cell cycle progression and extrinsic apoptosis and, supported by simulations and experiments of synchronized cell populations, suggest that unwanted escape from TRAIL-induced apoptosis can be reduced by enriching the fraction of cells in G1 phase. Besides novel insight into the interrelation of cell cycle progression and extrinsic apoptosis signaling kinetics, our findings are therefore also relevant for optimizing future TRAIL-based treatment strategies.
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Affiliation(s)
- Dirke Imig
- University of Stuttgart, Institute for Systems Theory and Automatic Control, Pfaffenwaldring 9, Stuttgart, Germany
| | - Nadine Pollak
- University of Stuttgart, Institute of Cell Biology and Immunology, Allmandring 31, Stuttgart, Germany
- University of Stuttgart, Stuttgart Research Center Systems Biology, Nobelstr. 15, Stuttgart, Germany
| | - Frank Allgöwer
- University of Stuttgart, Institute for Systems Theory and Automatic Control, Pfaffenwaldring 9, Stuttgart, Germany
- University of Stuttgart, Stuttgart Research Center Systems Biology, Nobelstr. 15, Stuttgart, Germany
| | - Markus Rehm
- University of Stuttgart, Institute of Cell Biology and Immunology, Allmandring 31, Stuttgart, Germany
- University of Stuttgart, Stuttgart Research Center Systems Biology, Nobelstr. 15, Stuttgart, Germany
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Miyamoto A, Miyauchi H, Kogure T, Miyawaki A, Michikawa T, Mikoshiba K. Apoptosis induction-related cytosolic calcium responses revealed by the dual FRET imaging of calcium signals and caspase-3 activation in a single cell. Biochem Biophys Res Commun 2015; 460:82-7. [PMID: 25998736 DOI: 10.1016/j.bbrc.2015.02.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 01/20/2023]
Abstract
Stimulus-induced changes in the intracellular Ca(2+) concentration control cell fate decision, including apoptosis. However, the precise patterns of the cytosolic Ca(2+) signals that are associated with apoptotic induction remain unknown. We have developed a novel genetically encoded sensor of activated caspase-3 that can be applied in combination with a genetically encoded sensor of the Ca(2+) concentration and have established a dual imaging system that enables the imaging of both cytosolic Ca(2+) signals and caspase-3 activation, which is an indicator of apoptosis, in the same cell. Using this system, we identified differences in the cytosolic Ca(2+) signals of apoptotic and surviving DT40 B lymphocytes after B cell receptor (BCR) stimulation. In surviving cells, BCR stimulation evoked larger initial Ca(2+) spikes followed by a larger sustained elevation of the Ca(2+) concentration than those in apoptotic cells; BCR stimulation also resulted in repetitive transient Ca(2+) spikes, which were mediated by the influx of Ca(2+) from the extracellular space. Our results indicate that the observation of both Ca(2+) signals and cells fate in same cell is crucial to gain an accurate understanding of the function of intracellular Ca(2+) signals in apoptotic induction.
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Affiliation(s)
- Akitoshi Miyamoto
- Laboratory for Developmental Neurobiology, RIKEN Brain Science Institute, Wako, Saitama 351-0198, Japan; Division of Neuronal Network, Department of Basic Medical Sciences, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Hiroshi Miyauchi
- Saitama Medical University Hospital, Iruma, Saitama 350-0495, Japan
| | - Takako Kogure
- Laboratory for Cell Function Dynamics, RIKEN Brain Science Institute, Wako, Saitama 351-0198, Japan
| | - Atsushi Miyawaki
- Laboratory for Cell Function Dynamics, RIKEN Brain Science Institute, Wako, Saitama 351-0198, Japan
| | - Takayuki Michikawa
- Laboratory for Developmental Neurobiology, RIKEN Brain Science Institute, Wako, Saitama 351-0198, Japan; Brain Science Institute, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; Laboratory for Behavioral Genetics, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Katsuhiko Mikoshiba
- Laboratory for Developmental Neurobiology, RIKEN Brain Science Institute, Wako, Saitama 351-0198, Japan.
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Sakamaki K, Imai K, Tomii K, Miller DJ. Evolutionary analyses of caspase-8 and its paralogs: Deep origins of the apoptotic signaling pathways. Bioessays 2015; 37:767-76. [DOI: 10.1002/bies.201500010] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kazuhiro Sakamaki
- Department of Animal Development and Physiology; Graduate School of Biostudies; Kyoto University; Kyoto Japan
| | - Kenichiro Imai
- Biotechnology Research Institute for Drug Discovery; National Institute of Advanced Industrial Science and Technology (AIST); Tokyo Japan
| | - Kentaro Tomii
- Biotechnology Research Institute for Drug Discovery; National Institute of Advanced Industrial Science and Technology (AIST); Tokyo Japan
| | - David J. Miller
- Department of Molecular and Cell Biology; ARC Centre of Excellence for Coral Reef Studies; James Cook University; Townsville Queensland Australia
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Nagano T, Hashimoto T, Nakashima A, Hisanaga SI, Kikkawa U, Kamada S. Cyclin I is involved in the regulation of cell cycle progression. Cell Cycle 2013; 12:2617-24. [PMID: 23907122 DOI: 10.4161/cc.25623] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cyclins control cell cycle progression by regulating the activity of cyclin-dependent kinases (Cdks). Cyclin I is a member of the cyclin family because of the presence of a cyclin box motif. It has been suggested that Cyclin I is involved in various biological processes, such as cell survival, angiogenesis, and cell differentiation. However, whether or not Cyclin I has a role in regulating the cell cycle similarly to other cyclins has yet to be clarified. Therefore, we investigated the role for Cyclin I in cell cycle progression. We showed that the protein level of Cyclin I oscillated during the cell cycle, and that Cyclin I was subjected to ubiquitination and degradation in cells. The interaction between Cyclin I and Cdk5 was detected in cells overexpressed with both proteins. Furthermore, depletion of Cyclin I by siRNAs prevented cell proliferation, suggesting the positive role of Cyclin I for the cell cycle progression. In addition, flow cytometric analysis revealed that cells depleted of Cyclin I were accumulated at G₂/M phases. By using HeLa.S-Fucci (fluorescent ubiquitination-based cell cycle indicator) cells, we further confirmed that knockdown of Cyclin I induced cell cycle arrest at S/G₂/M phases. These results strongly suggest that Cyclin I has the role in the regulation of cell cycle progression.
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Affiliation(s)
- Taiki Nagano
- Biosignal Research Center, Kobe University, Kobe, Japan
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Kominami K, Nakabayashi J, Nagai T, Tsujimura Y, Chiba K, Kimura H, Miyawaki A, Sawasaki T, Yokota H, Manabe N, Sakamaki K. The molecular mechanism of apoptosis upon caspase-8 activation: quantitative experimental validation of a mathematical model. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2012; 1823:1825-40. [PMID: 22801217 DOI: 10.1016/j.bbamcr.2012.07.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 06/29/2012] [Accepted: 07/06/2012] [Indexed: 12/22/2022]
Abstract
Caspase-8 (CASP8) is a cysteine protease that plays a pivotal role in the extrinsic apoptotic signaling pathway via death receptors. The kinetics, dynamics, and selectivity with which the pathway transmits apoptotic signals to downstream molecules upon CASP8 activation are not fully understood. We have developed a system for using high-sensitivity FRET-based biosensors to monitor the protease activity of CASP8 and its downstream effector, caspase-3, in living single cells. Using this system, we systematically investigated the caspase cascade by regulating the magnitude of extrinsic signals received by the cell. Furthermore, we determined the molar concentration of five caspases and Bid required for hierarchical transmission of apoptotic signals in a HeLa cell. Based on these quantitative experimental data, we validated a mathematical model suitable for estimation of the kinetics and dynamics of caspases, which predicts the minimal concentration of CASP8 required to act as an initiator. Consequently, we found that less than 1% of the total CASP8 proteins are sufficient to set the apoptotic program in motion if activated. Taken together, our findings demonstrate the precise cascade of CASP8-mediated apoptotic signals through the extrinsic pathway.
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Affiliation(s)
- Katsuya Kominami
- Department of Animal Development and Physiology, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
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