51
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Hsia CR, McAllister J, Hasan O, Judd J, Lee S, Agrawal R, Chang CY, Soloway P, Lammerding J. Confined migration induces heterochromatin formation and alters chromatin accessibility. iScience 2022; 25:104978. [PMID: 36117991 PMCID: PMC9474860 DOI: 10.1016/j.isci.2022.104978] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 06/14/2022] [Accepted: 08/15/2022] [Indexed: 01/17/2023] Open
Abstract
During migration, cells often squeeze through small constrictions, requiring extensive deformation. We hypothesized that nuclear deformation associated with such confined migration could alter chromatin organization and function. By studying cells migrating through microfluidic devices that mimic interstitial spaces in vivo, we found that confined migration results in increased H3K9me3 and H3K27me3 heterochromatin marks that persist for days. This "confined migration-induced heterochromatin" (CMiH) was distinct from heterochromatin formation during migration initiation. Confined migration decreased chromatin accessibility at intergenic regions near centromeres and telomeres, suggesting heterochromatin spreading from existing sites. Consistent with the overall decrease in accessibility, global transcription was decreased during confined migration. Intriguingly, we also identified increased accessibility at promoter regions of genes linked to chromatin silencing, tumor invasion, and DNA damage response. Inhibiting CMiH reduced migration speed, suggesting that CMiH promotes confined migration. Together, our findings indicate that confined migration induces chromatin changes that regulate cell migration and other functions.
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Affiliation(s)
- Chieh-Ren Hsia
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA
- Laboratory of Receptor Biology and Gene Expression, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Jawuanna McAllister
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA
| | - Ovais Hasan
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA
| | - Julius Judd
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Seoyeon Lee
- Department of Biomedical Sciences, Cornell University, Ithaca, NY 14853, USA
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Richa Agrawal
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA
| | - Chao-Yuan Chang
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Paul Soloway
- Department of Biomedical Sciences, Cornell University, Ithaca, NY 14853, USA
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Jan Lammerding
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
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Bera K, Kiepas A, Zhang Y, Sun SX, Konstantopoulos K. The interplay between physical cues and mechanosensitive ion channels in cancer metastasis. Front Cell Dev Biol 2022; 10:954099. [PMID: 36158191 PMCID: PMC9490090 DOI: 10.3389/fcell.2022.954099] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Physical cues have emerged as critical influencers of cell function during physiological processes, like development and organogenesis, and throughout pathological abnormalities, including cancer progression and fibrosis. While ion channels have been implicated in maintaining cellular homeostasis, their cell surface localization often places them among the first few molecules to sense external cues. Mechanosensitive ion channels (MICs) are especially important transducers of physical stimuli into biochemical signals. In this review, we describe how physical cues in the tumor microenvironment are sensed by MICs and contribute to cancer metastasis. First, we highlight mechanical perturbations, by both solid and fluid surroundings typically found in the tumor microenvironment and during critical stages of cancer cell dissemination from the primary tumor. Next, we describe how Piezo1/2 and transient receptor potential (TRP) channels respond to these physical cues to regulate cancer cell behavior during different stages of metastasis. We conclude by proposing alternative mechanisms of MIC activation that work in tandem with cytoskeletal components and other ion channels to bestow cells with the capacity to sense, respond and navigate through the surrounding microenvironment. Collectively, this review provides a perspective for devising treatment strategies against cancer by targeting MICs that sense aberrant physical characteristics during metastasis, the most lethal aspect of cancer.
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Affiliation(s)
- Kaustav Bera
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
| | - Alexander Kiepas
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
- *Correspondence: Alexander Kiepas, ; Konstantinos Konstantopoulos,
| | - Yuqi Zhang
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
| | - Sean X. Sun
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
- Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD, United States
| | - Konstantinos Konstantopoulos
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD, United States
- Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, United States
- Department of Oncology, The Johns Hopkins University, Baltimore, MD, United States
- *Correspondence: Alexander Kiepas, ; Konstantinos Konstantopoulos,
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53
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Li Y, Wong IY, Guo M. Reciprocity of Cell Mechanics with Extracellular Stimuli: Emerging Opportunities for Translational Medicine. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107305. [PMID: 35319155 PMCID: PMC9463119 DOI: 10.1002/smll.202107305] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Human cells encounter dynamic mechanical cues in healthy and diseased tissues, which regulate their molecular and biophysical phenotype, including intracellular mechanics as well as force generation. Recent developments in bio/nanomaterials and microfluidics permit exquisitely sensitive measurements of cell mechanics, as well as spatiotemporal control over external mechanical stimuli to regulate cell behavior. In this review, the mechanobiology of cells interacting bidirectionally with their surrounding microenvironment, and the potential relevance for translational medicine are considered. Key fundamental concepts underlying the mechanics of living cells as well as the extracelluar matrix are first introduced. Then the authors consider case studies based on 1) microfluidic measurements of nonadherent cell deformability, 2) cell migration on micro/nano-topographies, 3) traction measurements of cells in three-dimensional (3D) matrix, 4) mechanical programming of organoid morphogenesis, as well as 5) active mechanical stimuli for potential therapeutics. These examples highlight the promise of disease diagnosis using mechanical measurements, a systems-level understanding linking molecular with biophysical phenotype, as well as therapies based on mechanical perturbations. This review concludes with a critical discussion of these emerging technologies and future directions at the interface of engineering, biology, and medicine.
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Affiliation(s)
- Yiwei Li
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei, 430074, China
| | - Ian Y Wong
- School of Engineering, Center for Biomedical Engineering, Joint Program in Cancer Biology, Brown University, 184 Hope St Box D, Providence, RI, 02912, USA
| | - Ming Guo
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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Zhao H, Xie J, Wu S, Sánchez OF, Zhang X, Freeman JL, Yuan C. Pre-differentiation exposure of PFOA induced persistent changes in DNA methylation and mitochondrial morphology in human dopaminergic-like neurons. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119684. [PMID: 35764183 DOI: 10.1016/j.envpol.2022.119684] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/10/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Perfluorooctanoic acid (PFOA) is abundant in environment due to its historical uses in consumer products and industrial applications. Exposure to low doses of PFOA has been associated with various disease risks, including neurological disorders. The underlying mechanism, however, remains poorly understood. In this study, we examined the effects of low dose PFOA exposure at 0.4 and 4 μg/L on the morphology, epigenome, mitochondrion, and neuronal markers of dopaminergic (DA)-like SH-SY5Y cells. We observed persistent decreases in H3K4me3, H3K27me3 and 5 mC markers in nucleus along with alterations in nuclear size and chromatin compaction percentage in DA-like neurons differentiated from SH-SY5Y cells exposed to 0.4 and 4 μg/L PFOA. Among the selected epigenetic features, DNA methylation pattern can be used to distinguish between PFOA-exposed and naïve populations, suggesting the involvement of epigenetic regulation. Moreover, DA-like neurons with pre-differentiation PFOA exposure exhibit altered network connectivity, mitochondrial volume, and TH expression, implying impairment in DA neuron functionality. Collectively, our results revealed the prolonged effects of developmental PFOA exposure on the fitness of DA-like neurons and identified epigenome and mitochondrion as potential targets for bearing long-lasting changes contributing to increased risks of neurological diseases later in life.
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Affiliation(s)
- Han Zhao
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Junkai Xie
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Shichen Wu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Oscar F Sánchez
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Xinle Zhang
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Jennifer L Freeman
- School of Health Sciences, Purdue University, West Lafayette, IN, 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA
| | - Chongli Yuan
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA.
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55
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Zuela-Sopilniak N, Lammerding J. Can't handle the stress? Mechanobiology and disease. Trends Mol Med 2022; 28:710-725. [PMID: 35717527 PMCID: PMC9420767 DOI: 10.1016/j.molmed.2022.05.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/22/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
Abstract
Mechanobiology is a rapidly growing research area focused on how mechanical forces and properties influence biological systems at the cell, molecular, and tissue level, and how those biological systems, in turn, control mechanical parameters. Recently, it has become apparent that disrupted mechanobiology has a significant role in many diseases, from cardiovascular disease to muscular dystrophy and cancer. An improved understanding of this intricate process could be harnessed toward developing alternative and more targeted treatment strategies, and to advance the fields of regenerative and personalized medicine. Modulating the mechanical properties of the cellular microenvironment has already been used successfully to boost antitumor immune responses and to induce cardiac and spinal regeneration, providing inspiration for further research in this area.
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Affiliation(s)
- Noam Zuela-Sopilniak
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Jan Lammerding
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA.
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56
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Bell ES, Shah P, Zuela-Sopilniak N, Kim D, Varlet AA, Morival JL, McGregor AL, Isermann P, Davidson PM, Elacqua JJ, Lakins JN, Vahdat L, Weaver VM, Smolka MB, Span PN, Lammerding J. Low lamin A levels enhance confined cell migration and metastatic capacity in breast cancer. Oncogene 2022; 41:4211-4230. [PMID: 35896617 PMCID: PMC9925375 DOI: 10.1038/s41388-022-02420-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 02/07/2023]
Abstract
Aberrations in nuclear size and shape are commonly used to identify cancerous tissue. However, it remains unclear whether the disturbed nuclear structure directly contributes to the cancer pathology or is merely a consequence of other events occurring during tumorigenesis. Here, we show that highly invasive and proliferative breast cancer cells frequently exhibit Akt-driven lower expression of the nuclear envelope proteins lamin A/C, leading to increased nuclear deformability that permits enhanced cell migration through confined environments that mimic interstitial spaces encountered during metastasis. Importantly, increasing lamin A/C expression in highly invasive breast cancer cells reflected gene expression changes characteristic of human breast tumors with higher LMNA expression, and specifically affected pathways related to cell-ECM interactions, cell metabolism, and PI3K/Akt signaling. Further supporting an important role of lamins in breast cancer metastasis, analysis of lamin levels in human breast tumors revealed a significant association between lower lamin A levels, Akt signaling, and decreased disease-free survival. These findings suggest that downregulation of lamin A/C in breast cancer cells may influence both cellular physical properties and biochemical signaling to promote metastatic progression.
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Affiliation(s)
- Emily S. Bell
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY,Current address: Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA
| | - Pragya Shah
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY
| | | | - Dongsung Kim
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY
| | - Alice-Anais Varlet
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY
| | - Julien L.P. Morival
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY
| | - Alexandra L. McGregor
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY,Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY
| | - Philipp Isermann
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY
| | | | - Joshua J. Elacqua
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY
| | - Jonathan N. Lakins
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA
| | - Linda Vahdat
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Valerie M. Weaver
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA,Helen Diller Cancer Center, Department of Bioengineering and Therapeutic Sciences, and Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA
| | - Marcus B. Smolka
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY
| | - Paul N. Span
- Department of Radiation Oncology, Radiotherapy & OncoImmunology laboratory, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - Jan Lammerding
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA. .,Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA.
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57
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Kalukula Y, Stephens AD, Lammerding J, Gabriele S. Mechanics and functional consequences of nuclear deformations. Nat Rev Mol Cell Biol 2022; 23:583-602. [PMID: 35513718 PMCID: PMC9902167 DOI: 10.1038/s41580-022-00480-z] [Citation(s) in RCA: 121] [Impact Index Per Article: 60.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2022] [Indexed: 02/08/2023]
Abstract
As the home of cellular genetic information, the nucleus has a critical role in determining cell fate and function in response to various signals and stimuli. In addition to biochemical inputs, the nucleus is constantly exposed to intrinsic and extrinsic mechanical forces that trigger dynamic changes in nuclear structure and morphology. Emerging data suggest that the physical deformation of the nucleus modulates many cellular and nuclear functions. These functions have long been considered to be downstream of cytoplasmic signalling pathways and dictated by gene expression. In this Review, we discuss an emerging perspective on the mechanoregulation of the nucleus that considers the physical connections from chromatin to nuclear lamina and cytoskeletal filaments as a single mechanical unit. We describe key mechanisms of nuclear deformations in time and space and provide a critical review of the structural and functional adaptive responses of the nucleus to deformations. We then consider the contribution of nuclear deformations to the regulation of important cellular functions, including muscle contraction, cell migration and human disease pathogenesis. Collectively, these emerging insights shed new light on the dynamics of nuclear deformations and their roles in cellular mechanobiology.
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Affiliation(s)
- Yohalie Kalukula
- University of Mons, Soft Matter and Biomaterials group, Interfaces and Complex Fluids Laboratory, Research Institute for Biosciences, CIRMAP, Place du Parc, 20 B-7000 Mons, Belgium
| | - Andrew D. Stephens
- Biology Department, University of Massachusetts Amherst, Amherst, MA, USA
| | - Jan Lammerding
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA,Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Sylvain Gabriele
- University of Mons, Soft Matter and Biomaterials group, Interfaces and Complex Fluids Laboratory, Research Institute for Biosciences, CIRMAP, Place du Parc, 20 B-7000 Mons, Belgium
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58
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Jain N, Lord JM, Vogel V. Mechanoimmunology: Are inflammatory epigenetic states of macrophages tuned by biophysical factors? APL Bioeng 2022; 6:031502. [PMID: 36051106 PMCID: PMC9427154 DOI: 10.1063/5.0087699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/26/2022] [Indexed: 11/17/2022] Open
Abstract
Many inflammatory diseases that are responsible for a majority of deaths are still uncurable, in part as the underpinning pathomechanisms and how to combat them is still poorly understood. Tissue-resident macrophages play pivotal roles in the maintenance of tissue homeostasis, but if they gradually convert to proinflammatory phenotypes, or if blood-born proinflammatory macrophages persist long-term after activation, they contribute to chronic inflammation and fibrosis. While biochemical factors and how they regulate the inflammatory transcriptional response of macrophages have been at the forefront of research to identify targets for therapeutic interventions, evidence is increasing that physical factors also tune the macrophage phenotype. Recently, several mechanisms have emerged as to how physical factors impact the mechanobiology of macrophages, from the nuclear translocation of transcription factors to epigenetic modifications, perhaps even DNA methylation. Insight into the mechanobiology of macrophages and associated epigenetic modifications will deliver novel therapeutic options going forward, particularly in the context of increased inflammation with advancing age and age-related diseases. We review here how biophysical factors can co-regulate pro-inflammatory gene expression and epigenetic modifications and identify knowledge gaps that require urgent attention if this therapeutic potential is to be realized.
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Affiliation(s)
- Nikhil Jain
- Authors to whom correspondence should be addressed: and
| | | | - Viola Vogel
- Department of Health Sciences and Technology, Institute of Translational Medicine, ETH Zurich, Zurich, Switzerland
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59
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Gupta VK, Chaudhuri O. Mechanical regulation of cell-cycle progression and division. Trends Cell Biol 2022; 32:773-785. [PMID: 35491306 PMCID: PMC9378598 DOI: 10.1016/j.tcb.2022.03.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
Cell-cycle progression and division are fundamental biological processes in animal cells, and their biochemical regulation has been extensively studied. An emerging body of work has revealed how mechanical interactions of cells with their microenvironment in tissues, including with the extracellular matrix (ECM) and neighboring cells, also plays a crucial role in regulating cell-cycle progression and division. We review recent work on how cells interpret physical cues and alter their mechanics to promote cell-cycle progression and initiate cell division, and then on how dividing cells generate forces on their surrounding microenvironment to successfully divide. Finally, the article ends by discussing how force generation during division potentially contributes to larger tissue-scale processes involved in development and homeostasis.
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Affiliation(s)
- Vivek K Gupta
- Department of Mechanical Engineering, Stanford University, Stanford, CA, USA
| | - Ovijit Chaudhuri
- Department of Mechanical Engineering, Stanford University, Stanford, CA, USA..
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60
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Pressure Loading Induces DNA Damage in Human Hepatocyte Line L02 Cells via the ERK1/2-Dicer Signaling Pathway. Int J Mol Sci 2022; 23:ijms23105342. [PMID: 35628153 PMCID: PMC9140865 DOI: 10.3390/ijms23105342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/07/2022] [Accepted: 05/09/2022] [Indexed: 11/17/2022] Open
Abstract
Alteration of liver tissue mechanical microenvironment is proven to be a key factor for causing hepatocyte injury and even triggering the occurrence of hepatocellular carcinoma; however, the underlying mechanisms involved are not fully understood. In this study, using a customized, pressure-loading device, we assess the effect of pressure loading on DNA damage in human hepatocytes. We show that pressure loading leads to DNA damage and S-phase arresting in the cell cycle, and activates the DNA damage response in hepatocytes. Meanwhile, pressure loading upregulates Dicer expression, and its silencing exacerbates pressure-induced DNA damage. Moreover, pressure loading also activates ERK1/2 signaling molecules. Blockage of ERK1/2 signaling inhibits pressure-upregulated Dicer expression and exacerbates DNA damage by suppressing DNA damage response in hepatocytes. Our findings demonstrate that compressive stress loading induces hepatocyte DNA damage through the ERK1/2–Dicer signaling pathway, which provides evidence for a better understanding of the link between the altered mechanical environment and liver diseases.
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61
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Nuclear lamin isoforms differentially contribute to LINC complex-dependent nucleocytoskeletal coupling and whole-cell mechanics. Proc Natl Acad Sci U S A 2022; 119:e2121816119. [PMID: 35439057 PMCID: PMC9170021 DOI: 10.1073/pnas.2121816119] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Interactions between the cell nucleus and cytoskeleton regulate cell mechanics and are facilitated by the interplay between the nuclear lamina and linker of nucleoskeleton and cytoskeleton (LINC) complexes. To date, the specific contribution of the four lamin isoforms to nucleocytoskeletal connectivity and whole-cell mechanics remains unknown. We discover that A- and B-type lamins distinctively interact with LINC complexes that bind F-actin and vimentin filaments to differentially modulate cortical stiffness, cytoplasmic stiffness, and contractility of mouse embryonic fibroblasts (MEFs). We propose and experimentally verify an integrated lamin–LINC complex–cytoskeleton model that explains cellular mechanical phenotypes in lamin-deficient MEFs. Our findings uncover potential mechanisms for cellular defects in human laminopathies and many cancers associated with mutations or modifications in lamin isoforms. The ability of a cell to regulate its mechanical properties is central to its function. Emerging evidence suggests that interactions between the cell nucleus and cytoskeleton influence cell mechanics through poorly understood mechanisms. Here we conduct quantitative confocal imaging to show that the loss of A-type lamins tends to increase nuclear and cellular volume while the loss of B-type lamins behaves in the opposite manner. We use fluorescence recovery after photobleaching, atomic force microscopy, optical tweezer microrheology, and traction force microscopy to demonstrate that A-type lamins engage with both F-actin and vimentin intermediate filaments (VIFs) through the linker of nucleoskeleton and cytoskeleton (LINC) complexes to modulate cortical and cytoplasmic stiffness as well as cellular contractility in mouse embryonic fibroblasts (MEFs). In contrast, we show that B-type lamins predominantly interact with VIFs through LINC complexes to regulate cytoplasmic stiffness and contractility. We then propose a physical model mediated by the lamin–LINC complex that explains these distinct mechanical phenotypes (mechanophenotypes). To verify this model, we use dominant negative constructs and RNA interference to disrupt the LINC complexes that facilitate the interaction of the nucleus with the F-actin and VIF cytoskeletons and show that the loss of these elements results in mechanophenotypes like those observed in MEFs that lack A- or B-type lamin isoforms. Finally, we demonstrate that the loss of each lamin isoform softens the cell nucleus and enhances constricted cell migration but in turn increases migration-induced DNA damage. Together, our findings uncover distinctive roles for each of the four major lamin isoforms in maintaining nucleocytoskeletal interactions and cellular mechanics.
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62
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Molecular sensors for detection of tumor-stroma crosstalk. Adv Cancer Res 2022; 154:47-91. [PMID: 35459472 DOI: 10.1016/bs.acr.2022.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In most solid tumors, malignant cells coexist with non-cancerous host tissue comprised of a variety of extracellular matrix components and cell types, notably fibroblasts, immune cells, and endothelial cells. It is becoming increasingly evident that the non-cancerous host tissue, often referred to as the tumor stroma or the tumor microenvironment, wields tremendous influence in the proliferation, survival, and metastatic ability of cancer cells. The tumor stroma has an active biological role in the transmission of signals, such as growth factors and chemokines that activate oncogenic signaling pathways by autocrine and paracrine mechanisms. Moreover, the constituents of the stroma define the mechanical properties and the physical features of solid tumors, which influence cancer progression and response to therapy. Inspired by the emerging importance of tumor-stroma crosstalk and oncogenic physical forces, numerous biosensors, or advanced imaging and analysis techniques have been developed and applied to investigate complex and challenging questions in cancer research. These techniques facilitate measurements and biological readouts at scales ranging from subcellular to tissue-level with unprecedented level of spatial and temporal precision. Here we examine the application of biosensor technology for studying the complex and dynamic multiscale interactions of the tumor-host system.
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63
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Almagro J, Messal HA, Elosegui-Artola A, van Rheenen J, Behrens A. Tissue architecture in tumor initiation and progression. Trends Cancer 2022; 8:494-505. [PMID: 35300951 DOI: 10.1016/j.trecan.2022.02.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 01/13/2023]
Abstract
The 3D architecture of tissues bearing tumors impacts on the mechanical microenvironment of cancer, the accessibility of stromal cells, and the routes of invasion. A myriad of intrinsic and extrinsic forces exerted by the cancer cells, the host tissue, and the molecular and cellular microenvironment modulate the morphology of the tumor and its malignant potential through mechanical, biochemical, genetic, and epigenetic cues. Recent studies have investigated how tissue architecture influences cancer biology from tumor initiation and progression to distant metastatic seeding and response to therapy. With a focus on carcinoma, the most common type of cancer, this review discusses the latest discoveries on how tumor architecture is built and how tissue morphology affects the biology and progression of cancer cells.
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Affiliation(s)
- Jorge Almagro
- Adult Stem Cell Laboratory, The Francis Crick Institute, London, UK; Cancer Stem Cell Laboratory, The Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, London, UK
| | - Hendrik A Messal
- Department of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Alberto Elosegui-Artola
- Cell and Tissue Mechanobiology Laboratory, The Francis Crick Institute, London, UK; Department of Physics, King's College London, London, UK
| | - Jacco van Rheenen
- Department of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Axel Behrens
- Adult Stem Cell Laboratory, The Francis Crick Institute, London, UK; Cancer Stem Cell Laboratory, The Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, London, UK; Convergence Science Centre, Imperial College London, London, UK; Division of Cancer, Imperial College London, London, UK.
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64
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Fanfone D, Wu Z, Mammi J, Berthenet K, Neves D, Weber K, Halaburkova A, Virard F, Bunel F, Jamard C, Hernandez-Vargas H, Tait SWG, Hennino A, Ichim G. Confined migration promotes cancer metastasis through resistance to anoikis and increased invasiveness. eLife 2022; 11:e73150. [PMID: 35256052 PMCID: PMC8903834 DOI: 10.7554/elife.73150] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 02/15/2022] [Indexed: 12/12/2022] Open
Abstract
Mechanical stress is known to fuel several hallmarks of cancer, ranging from genome instability to uncontrolled proliferation or invasion. Cancer cells are constantly challenged by mechanical stresses not only in the primary tumour but also during metastasis. However, this latter has seldom been studied with regards to mechanobiology, in particular resistance to anoikis, a cell death programme triggered by loss of cell adhesion. Here, we show in vitro that migrating breast cancer cells develop resistance to anoikis following their passage through microporous membranes mimicking confined migration (CM), a mechanical constriction that cancer cells encounter during metastasis. This CM-induced resistance was mediated by Inhibitory of Apoptosis Proteins, and sensitivity to anoikis could be restored after their inhibition using second mitochondria-derived activator of caspase (SMAC) mimetics. Anoikis-resistant mechanically stressed cancer cells displayed enhanced cell motility and evasion from natural killer cell-mediated immune surveillance, as well as a marked advantage to form lung metastatic lesions in mice. Our findings reveal that CM increases the metastatic potential of breast cancer cells.
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Affiliation(s)
- Deborah Fanfone
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Université de LyonLyonFrance
| | - Zhichong Wu
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Université Lyon 1, VilleurbanneVilleurbanneFrance
- Centre Léon BérardLyonFrance
- Department of General Surgery, Pancreatic Disease Center, Ruijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jade Mammi
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Université de LyonLyonFrance
| | - Kevin Berthenet
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Université de LyonLyonFrance
- Centre Léon BérardLyonFrance
| | | | - Kathrin Weber
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Université de LyonLyonFrance
| | - Andrea Halaburkova
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Université de LyonLyonFrance
| | - François Virard
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Université Claude Bernard Lyon 1, Faculté d’Odontologie, Hospices Civils de LyonLyonFrance
| | - Félix Bunel
- ENS de Lyon, Université Claude Bernard Lyon 1, CNRS, Laboratoire de PhysiqueLyonFrance
| | - Catherine Jamard
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Université de LyonLyonFrance
| | - Hector Hernandez-Vargas
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Centre Léon BérardLyonFrance
- Université Claude Bernard Lyon 1LyonFrance
| | - Stephen WG Tait
- Cancer Research UK Beatson InstituteGlasgowUnited Kingdom
- Institute of Cancer Sciences, University of GlasgowGlasgowUnited Kingdom
| | - Ana Hennino
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Université Lyon 1, VilleurbanneVilleurbanneFrance
- Centre Léon BérardLyonFrance
| | - Gabriel Ichim
- Cancer Research Center of Lyon (CRCL), INSERM 1052, CNRSLyonFrance
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Université de LyonLyonFrance
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65
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Beeghly GF, Amofa KY, Fischbach C, Kumar S. Regulation of Tumor Invasion by the Physical Microenvironment: Lessons from Breast and Brain Cancer. Annu Rev Biomed Eng 2022; 24:29-59. [PMID: 35119915 DOI: 10.1146/annurev-bioeng-110220-115419] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The success of anticancer therapies is often limited by heterogeneity within and between tumors. While much attention has been devoted to understanding the intrinsic molecular diversity of tumor cells, the surrounding tissue microenvironment is also highly complex and coevolves with tumor cells to drive clinical outcomes. Here, we propose that diverse types of solid tumors share common physical motifs that change in time and space, serving as universal regulators of malignancy. We use breast cancer and glioblastoma as instructive examples and highlight how invasion in both diseases is driven by the appropriation of structural guidance cues, contact-dependent heterotypic interactions with stromal cells, and elevated interstitial fluid pressure and flow. We discuss how engineering strategies show increasing value for measuring and modeling these physical properties for mechanistic studies. Moreover, engineered systems offer great promise for developing and testing novel therapies that improve patient prognosis by normalizing the physical tumor microenvironment. Expected final online publication date for the Annual Review of Biomedical Engineering, Volume 24 is June 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Garrett F Beeghly
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, USA;
| | - Kwasi Y Amofa
- University of California, Berkeley-University of California, San Francisco Graduate Program in Bioengineering, Berkeley, California, USA; .,Department of Bioengineering, University of California, Berkeley, Berkeley, California, USA
| | - Claudia Fischbach
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, USA; .,Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, New York, USA
| | - Sanjay Kumar
- University of California, Berkeley-University of California, San Francisco Graduate Program in Bioengineering, Berkeley, California, USA; .,Department of Bioengineering, University of California, Berkeley, Berkeley, California, USA.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California, USA.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, USA
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66
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Lee G, Cho Y, Kim EH, Choi JM, Chae SS, Lee MG, Kim J, Choi WJ, Kwon J, Han EH, Kim SH, Park S, Chung YH, Chi SG, Jung BH, Shin JH, Lee JO. Pillar-Based Mechanical Induction of an Aggressive Tumorigenic Lung Cancer Cell Model. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20-31. [PMID: 34914354 DOI: 10.1021/acsami.1c12380] [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: 06/14/2023]
Abstract
Tissue microarchitecture imposes physical constraints to the migration of individual cells. Especially in cancer metastasis, three-dimensional structural barriers within the extracellular matrix are known to affect the migratory behavior of cells, regulating the pathological state of the cells. Here, we employed a culture platform with micropillar arrays of 2 μm diameter and 16 μm pitch (2.16 micropillar) as a mechanical stimulant. Using this platform, we investigated how a long-term culture of A549 human lung carcinoma cells on the (2.16) micropillar-embossed dishes would influence the pathological state of the cell. A549 cells grown on the (2.16) micropillar array with 10 μm height exhibited a significantly elongated morphology and enhanced migration even after the detachment and reattachment, as evidenced in the conventional wound-healing assay, single-cell tracking analysis, and in vivo tumor colonization assays. Moreover, the pillar-induced morphological deformation in nuclei was accompanied by cell-cycle arrest in the S phase, leading to suppressed proliferation. While these marked traits of morphology-migration-proliferation support more aggressive characteristics of metastatic cancer cells, typical indices of epithelial-mesenchymal transition were not found, but instead, remarkable traces of amoeboidal transition were confirmed. Our study also emphasizes the importance of mechanical stimuli from the microenvironment during pathogenesis and how gained traits can be passed onto subsequent generations, ultimately affecting their pathophysiological behavior. Furthermore, this study highlights the potential use of pillar-based mechanical stimuli as an in vitro cell culture strategy to induce more aggressive tumorigenic cancer cell models.
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Affiliation(s)
- Geonhee Lee
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Youngbin Cho
- Department of Mechanical Engineering, Korea Advanced of Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Eun Hye Kim
- Laboratory of Translational Therapeutics, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Jong Min Choi
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Soo Sang Chae
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Min-Goo Lee
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Jonghyun Kim
- Division of Bioconvergence Analysis, Korea Basic Science Institute (KBSI), Cheongju 28119, Republic of Korea
| | - Won Jin Choi
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Joseph Kwon
- Division of Bioconvergence Analysis, Korea Basic Science Institute (KBSI), Cheongju 28119, Republic of Korea
| | - Eun Hee Han
- Division of Bioconvergence Analysis, Korea Basic Science Institute (KBSI), Cheongju 28119, Republic of Korea
| | - Seong Hwan Kim
- Laboratory of Translational Therapeutics, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Sungsu Park
- School of Mechanical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Young-Ho Chung
- Division of Bioconvergence Analysis, Korea Basic Science Institute (KBSI), Cheongju 28119, Republic of Korea
| | - Sung-Gil Chi
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Byung Hwa Jung
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Jennifer H Shin
- Department of Mechanical Engineering, Korea Advanced of Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeong-O Lee
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
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67
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Abstract
Cells generate and sense mechanical forces that trigger biochemical signals to elicit cellular responses that control cell fate changes. Mechanical forces also physically distort neighboring cells and the surrounding connective tissue, which propagate mechanochemical signals over long distances to guide tissue patterning, organogenesis, and adult tissue homeostasis. As the largest and stiffest organelle, the nucleus is particularly sensitive to mechanical force and deformation. Nuclear responses to mechanical force include adaptations in chromatin architecture and transcriptional activity that trigger changes in cell state. These force-driven changes also influence the mechanical properties of chromatin and nuclei themselves to prevent aberrant alterations in nuclear shape and help maintain genome integrity. This review will discuss principles of nuclear mechanotransduction and chromatin mechanics and their role in DNA damage and cell fate regulation.
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Affiliation(s)
- Yekaterina A Miroshnikova
- Helsinki Institute of Life Science, Biomedicum Helsinki, University of Helsinki, Helsinki 00014, Finland
- Wihuri Research Institute, Biomedicum Helsinki, University of Helsinki, Helsinki 00290, Finland
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki 00014, Finland
- Max Planck Institute for Biology of Ageing, Cologne 50931, Germany
- Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Sara A Wickström
- Helsinki Institute of Life Science, Biomedicum Helsinki, University of Helsinki, Helsinki 00014, Finland
- Wihuri Research Institute, Biomedicum Helsinki, University of Helsinki, Helsinki 00290, Finland
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki 00014, Finland
- Max Planck Institute for Biology of Ageing, Cologne 50931, Germany
- Cluster of Excellence Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne 50931, Germany
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68
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Beshay PE, Cortes-Medina MG, Menyhert MM, Song JW. The biophysics of cancer: emerging insights from micro- and nanoscale tools. ADVANCED NANOBIOMED RESEARCH 2022; 2:2100056. [PMID: 35156093 PMCID: PMC8827905 DOI: 10.1002/anbr.202100056] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cancer is a complex and dynamic disease that is aberrant both biologically and physically. There is growing appreciation that physical abnormalities with both cancer cells and their microenvironment that span multiple length scales are important drivers for cancer growth and metastasis. The scope of this review is to highlight the key advancements in micro- and nano-scale tools for delineating the cause and consequences of the aberrant physical properties of tumors. We focus our review on three important physical aspects of cancer: 1) solid mechanical properties, 2) fluid mechanical properties, and 3) mechanical alterations to cancer cells. Beyond posing physical barriers to the delivery of cancer therapeutics, these properties are also known to influence numerous biological processes, including cancer cell invasion and migration leading to metastasis, and response and resistance to therapy. We comment on how micro- and nanoscale tools have transformed our fundamental understanding of the physical dynamics of cancer progression and their potential for bridging towards future applications at the interface of oncology and physical sciences.
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Affiliation(s)
- Peter E Beshay
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
| | | | - Miles M Menyhert
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210
| | - Jonathan W Song
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
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69
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Rich J, Tian Z, Huang TJ. Sonoporation: Past, Present, and Future. ADVANCED MATERIALS TECHNOLOGIES 2022; 7:2100885. [PMID: 35399914 PMCID: PMC8992730 DOI: 10.1002/admt.202100885] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Indexed: 05/09/2023]
Abstract
A surge of research in intracellular delivery technologies is underway with the increased innovations in cell-based therapies and cell reprogramming. Particularly, physical cell membrane permeabilization techniques are highlighted as the leading technologies because of their unique features, including versatility, independence of cargo properties, and high-throughput delivery that is critical for providing the desired cell quantity for cell-based therapies. Amongst the physical permeabilization methods, sonoporation holds great promise and has been demonstrated for delivering a variety of functional cargos, such as biomolecular drugs, proteins, and plasmids, to various cells including cancer, immune, and stem cells. However, traditional bubble-based sonoporation methods usually require special contrast agents. Bubble-based sonoporation methods also have high chances of inducing irreversible damage to critical cell components, lowering the cell viability, and reducing the effectiveness of delivered cargos. To overcome these limitations, several novel non-bubble-based sonoporation mechanisms are under development. This review will cover both the bubble-based and non-bubble-based sonoporation mechanisms being employed for intracellular delivery, the technologies being investigated to overcome the limitations of traditional platforms, as well as perspectives on the future sonoporation mechanisms, technologies, and applications.
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Affiliation(s)
- Joseph Rich
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Zhenhua Tian
- Department of Aerospace Engineering, Mississippi State University, Mississippi State, MS, 39762, USA
| | - Tony Jun Huang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
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70
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Agrawal R, Windsor A, Lammerding J. Assembly and Use of a Microfluidic Device to Study Nuclear Mechanobiology During Confined Migration. Methods Mol Biol 2022; 2502:329-349. [PMID: 35412249 PMCID: PMC9862508 DOI: 10.1007/978-1-0716-2337-4_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Cancer metastasis, that is, the spreading of tumor cells from the primary tumor to distant sites, requires cancer cells to travel through pores substantially smaller than their cross section . This "confined migration" requires substantial deformation by the relatively large and rigid nucleus, which can impact nuclear compartmentalization, trigger cellular mechanotransduction pathways, and increase genomic instability. To improve our understanding of how cells perform and respond to confined migration, we developed polydimethylsiloxane (PDMS) microfluidic devices in which cells migrate through a precisely controlled "field of pillars" that closely mimic the intermittent confinement of tumor microenvironments and interstitial spaces. The devices can be designed with various densities of pillars, ranging from a very low density that does not require nuclear deformation to high densities that present microenvironment conditions with severe confinement. The devices enable assessment of cellular fitness for confined migration based on the distance traveled through the constriction area over several days. In this protocol, we present two complementary techniques to generate silicon master molds for the device fabrication: (1) SU-8 soft lithography for rapid prototyping and for devices with relatively large features; and (2) reactive ion etching (RIE) to achieve finer features and more durable molds. In addition, we describe the production, use, and validation of the devices, along with the analysis pipeline for experiments using the devices with fluorescently labeled cells. Collectively, this protocol enables the study of confined migration and is readily amendable to investigate other aspects of confined migration mechanobiology, such as nuclear pore complex function in response to nuclear deformation.
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Affiliation(s)
- Richa Agrawal
- Weill Institute for Cellular and Molecular Biology, Cornell University, Ithaca, NY 14853, USA
| | - Aaron Windsor
- Cornell NanoScale Science and Technology Facility, Cornell University, Ithaca NY 14850, USA
| | - Jan Lammerding
- Weill Institute for Cellular and Molecular Biology, Cornell University, Ithaca, NY 14853, USA,Nancy E. and Peter C. Meinig School of Engineering, Cornell University, Ithaca, NY 14853, USA,Correspondence should be addressed to
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71
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Physical Forces and Transient Nuclear Envelope Rupture during Metastasis: The Key for Success? Cancers (Basel) 2021; 14:cancers14010083. [PMID: 35008251 PMCID: PMC8750110 DOI: 10.3390/cancers14010083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/16/2021] [Accepted: 12/21/2021] [Indexed: 12/25/2022] Open
Abstract
Simple Summary Metastasis is the process that allows the seeding of tumor cells in a new organ. The migration and invasion of cancer cells involves the pulling, pushing, and squeezing of cells through narrow spaces and pores. Tumor cells need to cross several physical barriers, such as layers of basement membranes as well as the endothelium wall during the way in and out of the blood stream, to reach the new organ. The aim of this review is to highlight the role of physical compression in the success of metastasis. We will especially focus on nuclear squeezing and nuclear envelope rupture and explain how they can actively participate in the creation of genomic heterogeneity as well as supporting metastasis growth. Abstract During metastasis, invading tumor cells and circulating tumor cells (CTC) face multiple mechanical challenges during migration through narrow pores and cell squeezing. However, little is known on the importance and consequences of mechanical stress for tumor progression and success in invading a new organ. Recently, several studies have shown that cell constriction can lead to nuclear envelope rupture (NER) during interphase. This loss of proper nuclear compartmentalization has a profound effect on the genome, being a key driver for the genome evolution needed for tumor progression. More than just being a source of genomic alterations, the transient nuclear envelope collapse can also support metastatic growth by several mechanisms involving the innate immune response cGAS/STING pathway. In this review we will describe the importance of the underestimated role of cellular squeezing in the progression of tumorigenesis. We will describe the complexity and difficulty for tumor cells to reach the metastatic site, detail the genomic aberration diversity due to NER, and highlight the importance of the activation of the innate immune pathway on cell survival. Cellular adaptation and nuclear deformation can be the key to the metastasis success in many unsuspected aspects.
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72
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Caragine CM, Kanellakopoulos N, Zidovska A. Mechanical stress affects dynamics and rheology of the human genome. SOFT MATTER 2021; 18:107-116. [PMID: 34874386 DOI: 10.1039/d1sm00983d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Material properties of the genome are critical for proper cellular function - they directly affect timescales and length scales of DNA transactions such as transcription, replication and DNA repair, which in turn impact all cellular processes via the central dogma of molecular biology. Hence, elucidating the genome's rheology in vivo may help reveal physical principles underlying the genome's organization and function. Here, we present a novel noninvasive approach to study the genome's rheology and its response to mechanical stress in form of nuclear injection in live human cells. Specifically, we use Displacement Correlation Spectroscopy to map nucleus-wide genomic motions pre/post injection, during which we deposit rheological probes inside the cell nucleus. While the genomic motions inform on the bulk rheology of the genome pre/post injection, the probe's motion informs on the local rheology of its surroundings. Our results reveal that mechanical stress of injection leads to local as well as nucleus-wide changes in the genome's compaction, dynamics and rheology. We find that the genome pre-injection exhibits subdiffusive motions, which are coherent over several micrometers. In contrast, genomic motions post-injection become faster and uncorrelated, moreover, the genome becomes less compact and more viscous across the entire nucleus. In addition, we use the injected particles as rheological probes and find the genome to condense locally around them, mounting a local elastic response. Taken together, our results show that mechanical stress alters both dynamics and material properties of the genome. These changes are consistent with those observed upon DNA damage, suggesting that the genome experiences similar effects during the injection process.
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Affiliation(s)
- Christina M Caragine
- Center for Soft Matter Research, Department of Physics, New York University, New York, NY 10003, USA.
| | - Nikitas Kanellakopoulos
- Center for Soft Matter Research, Department of Physics, New York University, New York, NY 10003, USA.
| | - Alexandra Zidovska
- Center for Soft Matter Research, Department of Physics, New York University, New York, NY 10003, USA.
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73
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Siemsen K, Rajput S, Rasch F, Taheri F, Adelung R, Lammerding J, Selhuber-Unkel C. Tunable 3D Hydrogel Microchannel Networks to Study Confined Mammalian Cell Migration. Adv Healthc Mater 2021; 10:e2100625. [PMID: 34668667 PMCID: PMC8743577 DOI: 10.1002/adhm.202100625] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/12/2021] [Indexed: 11/12/2022]
Abstract
Cells adapt and move due to chemical, physical, and mechanical cues from their microenvironment. It is therefore important to create materials that mimic human tissue physiology by surface chemistry, architecture, and dimensionality to control cells in biomedical settings. The impact of the environmental architecture is particularly relevant in the context of cancer cell metastasis, where cells migrate through small constrictions in their microenvironment to invade surrounding tissues. Here, a synthetic hydrogel scaffold with an interconnected, random, 3D microchannel network is presented that is functionalized with collagen to promote cell adhesion. It is shown that cancer cells can invade such scaffolds within days, and both the microarchitecture and stiffness of the hydrogel modulate cell invasion and nuclear dynamics of the cells. Specifically, it is found that cell migration through the microchannels is a function of hydrogel stiffness. In addition to this, it is shown that the hydrogel stiffness and confinement, influence the occurrence of nuclear envelope ruptures of cells. The tunable hydrogel microarchitecture and stiffness thus provide a novel tool to investigate cancer cell invasion as a function of the 3D microenvironment. Furthermore, the material provides a promising strategy to control cell positioning, migration, and cellular function in biological applications, such as tissue engineering.
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Affiliation(s)
- Katharina Siemsen
- Institute for Materials Science, Kiel University, Kiel, D-24143, Germany
| | - Sunil Rajput
- Institute for Molecular Systems Engineering (IMSE), Heidelberg University, Heidelberg, 69120, Germany
| | - Florian Rasch
- Institute for Materials Science, Kiel University, Kiel, D-24143, Germany
| | - Fereydoon Taheri
- Institute for Molecular Systems Engineering (IMSE), Heidelberg University, Heidelberg, 69120, Germany
| | - Rainer Adelung
- Institute for Materials Science, Kiel University, Kiel, D-24143, Germany
| | - Jan Lammerding
- Meinig School of Biomedical Engineering & Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Christine Selhuber-Unkel
- Institute for Molecular Systems Engineering (IMSE), Heidelberg University, Heidelberg, 69120, Germany
- Max Planck School Matter to Life, Jahnstraße 29, Heidelberg, 69120, Germany
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74
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Hobson CM, Falvo MR, Superfine R. A survey of physical methods for studying nuclear mechanics and mechanobiology. APL Bioeng 2021; 5:041508. [PMID: 34849443 PMCID: PMC8604565 DOI: 10.1063/5.0068126] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/20/2021] [Indexed: 12/23/2022] Open
Abstract
It is increasingly appreciated that the cell nucleus is not only a home for DNA but also a complex material that resists physical deformations and dynamically responds to external mechanical cues. The molecules that confer mechanical properties to nuclei certainly contribute to laminopathies and possibly contribute to cellular mechanotransduction and physical processes in cancer such as metastasis. Studying nuclear mechanics and the downstream biochemical consequences or their modulation requires a suite of complex assays for applying, measuring, and visualizing mechanical forces across diverse length, time, and force scales. Here, we review the current methods in nuclear mechanics and mechanobiology, placing specific emphasis on each of their unique advantages and limitations. Furthermore, we explore important considerations in selecting a new methodology as are demonstrated by recent examples from the literature. We conclude by providing an outlook on the development of new methods and the judicious use of the current techniques for continued exploration into the role of nuclear mechanobiology.
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Affiliation(s)
| | - Michael R. Falvo
- Department of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Richard Superfine
- Department of Applied Physical Science, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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75
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Abstract
The cell nucleus is best known as the container of the genome. Its envelope provides a barrier for passive macromolecule diffusion, which enhances the control of gene expression. As its largest and stiffest organelle, the nucleus also defines the minimal space requirements of a cell. Internal or external pressures that deform a cell to its physical limits cause a corresponding nuclear deformation. Evidence is consolidating that the nucleus, in addition to its genetic functions, serves as a physical sensing device for critical cell body deformation. Nuclear mechanotransduction allows cells to adapt their acute behaviors, mechanical stability, paracrine signaling, and fate to their physical surroundings. This review summarizes the basic chemical and mechanical properties of nuclear components, and how these properties are thought to be utilized for mechanosensing.
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Affiliation(s)
- Philipp Niethammer
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
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76
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Gómez HF, Dumond MS, Hodel L, Vetter R, Iber D. 3D cell neighbour dynamics in growing pseudostratified epithelia. eLife 2021; 10:e68135. [PMID: 34609280 PMCID: PMC8570695 DOI: 10.7554/elife.68135] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 09/27/2021] [Indexed: 12/29/2022] Open
Abstract
During morphogenesis, epithelial sheets remodel into complex geometries. How cells dynamically organise their contact with neighbouring cells in these tightly packed tissues is poorly understood. We have used light-sheet microscopy of growing mouse embryonic lung explants, three-dimensional cell segmentation, and physical theory to unravel the principles behind 3D cell organisation in growing pseudostratified epithelia. We find that cells have highly irregular 3D shapes and exhibit numerous neighbour intercalations along the apical-basal axis as well as over time. Despite the fluidic nature, the cell packing configurations follow fundamental relationships previously described for apical epithelial layers, that is, Euler's polyhedron formula, Lewis' law, and Aboav-Weaire's law, at all times and across the entire tissue thickness. This arrangement minimises the lateral cell-cell surface energy for a given cross-sectional area variability, generated primarily by the distribution and movement of nuclei. We conclude that the complex 3D cell organisation in growing epithelia emerges from simple physical principles.
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Affiliation(s)
- Harold Fernando Gómez
- Department of Biosystems Science and Engineering (D-BSSE), ETH ZürichBaselSwitzerland
- Swiss Institute of Bioinformatics (SIB)BaselSwitzerland
| | - Mathilde Sabine Dumond
- Department of Biosystems Science and Engineering (D-BSSE), ETH ZürichBaselSwitzerland
- Swiss Institute of Bioinformatics (SIB)BaselSwitzerland
| | - Leonie Hodel
- Department of Biosystems Science and Engineering (D-BSSE), ETH ZürichBaselSwitzerland
| | - Roman Vetter
- Department of Biosystems Science and Engineering (D-BSSE), ETH ZürichBaselSwitzerland
- Swiss Institute of Bioinformatics (SIB)BaselSwitzerland
| | - Dagmar Iber
- Department of Biosystems Science and Engineering (D-BSSE), ETH ZürichBaselSwitzerland
- Swiss Institute of Bioinformatics (SIB)BaselSwitzerland
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77
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Ovsiannikova NL, Lavrushkina SV, Ivanova AV, Mazina LM, Zhironkina OA, Kireev II. Lamin A as a Determinant of Mechanical Properties of the Cell Nucleus in Health and Disease. BIOCHEMISTRY. BIOKHIMIIA 2021; 86:1288-1300. [PMID: 34903160 DOI: 10.1134/s0006297921100102] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 06/14/2023]
Abstract
One of the main factors associated with worse prognosis in oncology is metastasis, which is based on the ability of tumor cells to migrate from the primary source and to form secondary tumors. The search for new strategies to control migration of metastatic cells is one of the urgent issues in biomedicine. One of the strategies to stop spread of cancer cells could be regulation of the nuclear elasticity. Nucleus, as the biggest and stiffest cellular compartment, determines mechanical properties of the cell as a whole, and, hence, could prevent cell migration through the three-dimensional extracellular matrix. Nuclear rigidity is maintained by the nuclear lamina, two-dimensional network of intermediate filaments in the inner nuclear membrane (INM). Here we present the most significant factors defining nucleus rigidity, discuss the role of nuclear envelope composition in the cell migration, as well consider possible approaches to control lamina composition in order to change plasticity of the cell nucleus and ability of the tumor cells to metastasize.
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Affiliation(s)
- Natalia L Ovsiannikova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119992, Russia.
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Svetlana V Lavrushkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119992, Russia
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Anastasia V Ivanova
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Ludmila M Mazina
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Oxana A Zhironkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119992, Russia
| | - Igor I Kireev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119992, Russia
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
- Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Moscow, 117198, Russia
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78
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Nader GPDF, Agüera-Gonzalez S, Routet F, Gratia M, Maurin M, Cancila V, Cadart C, Palamidessi A, Ramos RN, San Roman M, Gentili M, Yamada A, Williart A, Lodillinsky C, Lagoutte E, Villard C, Viovy JL, Tripodo C, Galon J, Scita G, Manel N, Chavrier P, Piel M. Compromised nuclear envelope integrity drives TREX1-dependent DNA damage and tumor cell invasion. Cell 2021; 184:5230-5246.e22. [PMID: 34551315 DOI: 10.1016/j.cell.2021.08.035] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/07/2021] [Accepted: 08/29/2021] [Indexed: 11/18/2022]
Abstract
Although mutations leading to a compromised nuclear envelope cause diseases such as muscular dystrophies or accelerated aging, the consequences of mechanically induced nuclear envelope ruptures are less known. Here, we show that nuclear envelope ruptures induce DNA damage that promotes senescence in non-transformed cells and induces an invasive phenotype in human breast cancer cells. We find that the endoplasmic reticulum (ER)-associated exonuclease TREX1 translocates into the nucleus after nuclear envelope rupture and is required to induce DNA damage. Inside the mammary duct, cellular crowding leads to nuclear envelope ruptures that generate TREX1-dependent DNA damage, thereby driving the progression of in situ carcinoma to the invasive stage. DNA damage and nuclear envelope rupture markers were also enriched at the invasive edge of human tumors. We propose that DNA damage in mechanically challenged nuclei could affect the pathophysiology of crowded tissues by modulating proliferation and extracellular matrix degradation of normal and transformed cells.
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Affiliation(s)
| | | | - Fiona Routet
- Institut Curie, PSL Research University, CNRS, UMR 144, Paris, France
| | - Matthieu Gratia
- Institut Curie, PSL Research University, INSERM, U932, Paris, France
| | - Mathieu Maurin
- Institut Curie, PSL Research University, INSERM, U932, Paris, France
| | - Valeria Cancila
- Tumor Immunology Unit, University of Palermo, Corso Tukory 211, 90234 Palermo, Italy
| | - Clotilde Cadart
- Institut Curie and Institut Pierre Gilles de Gennes, PSL Research University, CNRS, UMR 144, Paris, France
| | - Andrea Palamidessi
- FIRC Institute of Molecular Oncology, IFOM, Via Adamello 16, 20139 Milano, Italy; Department of Oncology and Hemato-Oncology, University of Milan, IFOM, Via Adamello 16, 20139 Milano, Italy
| | - Rodrigo Nalio Ramos
- INSERM, Sorbonne Université, Université de Paris, Equipe Labellisée Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Laboratory of Integrative Cancer Immunology, Paris, France
| | - Mabel San Roman
- Institut Curie, PSL Research University, INSERM, U932, Paris, France
| | - Matteo Gentili
- Institut Curie, PSL Research University, INSERM, U932, Paris, France
| | - Ayako Yamada
- Institut Curie, Université PSL, CNRS, UMR 168, Paris, France
| | - Alice Williart
- Institut Curie and Institut Pierre Gilles de Gennes, PSL Research University, CNRS, UMR 144, Paris, France
| | - Catalina Lodillinsky
- Research Area, Instituto de Oncología Ángel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Emilie Lagoutte
- Institut Curie, PSL Research University, CNRS, UMR 144, Paris, France
| | | | | | - Claudio Tripodo
- Tumor Immunology Unit, University of Palermo, Corso Tukory 211, 90234 Palermo, Italy
| | - Jérôme Galon
- INSERM, Sorbonne Université, Université de Paris, Equipe Labellisée Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Laboratory of Integrative Cancer Immunology, Paris, France
| | - Giorgio Scita
- Research Area, Instituto de Oncología Ángel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Nicolas Manel
- Institut Curie, PSL Research University, INSERM, U932, Paris, France.
| | - Philippe Chavrier
- Institut Curie, PSL Research University, CNRS, UMR 144, Paris, France.
| | - Matthieu Piel
- Institut Curie and Institut Pierre Gilles de Gennes, PSL Research University, CNRS, UMR 144, Paris, France.
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79
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Kuisma H, Bramante S, Rajamäki K, Sipilä LJ, Kaasinen E, Kaukomaa J, Palin K, Mäkinen N, Sjöberg J, Sarvilinna N, Taipale J, Kauppi L, Tumiati M, Hassinen A, Pitkäniemi J, Jalkanen J, Heikkinen S, Pasanen A, Heikinheimo O, Bützow R, Välimäki N, Aaltonen LA. Parity associates with chromosomal damage in uterine leiomyomas. Nat Commun 2021; 12:5448. [PMID: 34521855 PMCID: PMC8440576 DOI: 10.1038/s41467-021-25806-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 08/30/2021] [Indexed: 12/16/2022] Open
Abstract
Mechanical forces in a constrained cellular environment were recently established as a facilitator of chromosomal damage. Whether this could contribute to tumorigenesis is not known. Uterine leiomyomas are common neoplasms that display relatively few chromosomal aberrations. We hypothesized that if mechanical forces contribute to chromosomal damage, signs of this could be seen in uterine leiomyomas from parous women. We examined the karyotypes of 1946 tumors, and found a striking overrepresentation of chromosomal damage associated with parity. We then subjected myometrial cells to physiological forces similar to those encountered during pregnancy, and found this to cause DNA breaks and a DNA repair response. While mechanical forces acting in constrained cellular environments may thus contribute to neoplastic degeneration, and genesis of uterine leiomyoma, further studies are needed to prove possible causality of the observed association. No evidence for progression to malignancy was found.
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Affiliation(s)
- Heli Kuisma
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Simona Bramante
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Kristiina Rajamäki
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Lauri J Sipilä
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Eevi Kaasinen
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Jaana Kaukomaa
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Kimmo Palin
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Netta Mäkinen
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Jari Sjöberg
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Nanna Sarvilinna
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Systems Oncology Research Program, University of Helsinki, Helsinki, Finland
| | - Jussi Taipale
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Liisa Kauppi
- Systems Oncology Research Program, University of Helsinki, Helsinki, Finland
| | - Manuela Tumiati
- Systems Oncology Research Program, University of Helsinki, Helsinki, Finland
| | - Antti Hassinen
- FIMM-HCA, Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Janne Pitkäniemi
- Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland
- Faculty of Social Sciences, University of Tampere, Tampere, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Jyrki Jalkanen
- Department of Obstetrics and Gynecology, Central Finland Central Hospital, Jyväskylä, Finland
| | - Sanna Heikkinen
- Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland
| | - Annukka Pasanen
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Oskari Heikinheimo
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ralf Bützow
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Niko Välimäki
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland
| | - Lauri A Aaltonen
- Department of Medical and Clinical Genetics and Applied Tumor Genomics Research Program University of Helsinki, Helsinki, Finland.
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80
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Hobson CM, Aaron JS, Heddleston JM, Chew TL. Visualizing the Invisible: Advanced Optical Microscopy as a Tool to Measure Biomechanical Forces. Front Cell Dev Biol 2021; 9:706126. [PMID: 34552926 PMCID: PMC8450411 DOI: 10.3389/fcell.2021.706126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/09/2021] [Indexed: 01/28/2023] Open
Abstract
The importance of mechanical force in biology is evident across diverse length scales, ranging from tissue morphogenesis during embryo development to mechanotransduction across single adhesion proteins at the cell surface. Consequently, many force measurement techniques rely on optical microscopy to measure forces being applied by cells on their environment, to visualize specimen deformations due to external forces, or even to directly apply a physical perturbation to the sample via photoablation or optogenetic tools. Recent developments in advanced microscopy offer improved approaches to enhance spatiotemporal resolution, imaging depth, and sample viability. These advances can be coupled with already existing force measurement methods to improve sensitivity, duration and speed, amongst other parameters. However, gaining access to advanced microscopy instrumentation and the expertise necessary to extract meaningful insights from these techniques is an unavoidable hurdle. In this Live Cell Imaging special issue Review, we survey common microscopy-based force measurement techniques and examine how they can be bolstered by emerging microscopy methods. We further explore challenges related to the accompanying data analysis in biomechanical studies and discuss the various resources available to tackle the global issue of technology dissemination, an important avenue for biologists to gain access to pre-commercial instruments that can be leveraged for biomechanical studies.
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Affiliation(s)
- Chad M. Hobson
- Advanced Imaging Center, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, United States
| | - Jesse S. Aaron
- Advanced Imaging Center, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, United States
| | - John M. Heddleston
- Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, FL, United States
| | - Teng-Leong Chew
- Advanced Imaging Center, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, United States
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81
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Tay A, Melosh N. Mechanical Stimulation after Centrifuge-Free Nano-Electroporative Transfection Is Efficient and Maintains Long-Term T Cell Functionalities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103198. [PMID: 34396686 PMCID: PMC8475193 DOI: 10.1002/smll.202103198] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/05/2021] [Indexed: 05/08/2023]
Abstract
Transfection is an essential step in genetic engineering and cell therapies. While a number of non-viral micro- and nano-technologies have been developed to deliver DNA plasmids into the cell cytoplasm, one of the most challenging and least efficient steps is DNA transport to and expression in the nucleus. Here, the magnetic nano-electro-injection (MagNEI) platform is described which makes use of oscillatory mechanical stimulation after cytoplasmic delivery with high aspect-ratio nano-structures to achieve stable (>2 weeks) net transfection efficiency (efficiency × viability) of 50% in primary human T cells. This is, to the best of the authors' knowledge, the highest net efficiency reported for primary T cells using a centrifuge-free, non-viral transfection method, in the absence of cell selection, and with a clinically relevant cargo size (>12 kbp). Wireless mechanical stimulation downregulates the expression of microtubule motor protein gene, KIF2A, which increases local DNA concentration near the nuclei, resulting in enhanced DNA transfection. Magnetic forces also accelerate membrane repair by promoting actin cytoskeletal remodeling which preserves key biological attributes including cell proliferation and gene expressions. These results demonstrate MagNEI as a powerful non-viral transfection technique for progress toward fully closed, end-to-end T cell manufacturing with less human labor, lower production cost, and shorter delay.
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Affiliation(s)
- Andy Tay
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583
- Institute of Health Innovation & Technology, National University of Singapore, Singapore 117599
| | - Nicholas Melosh
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
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82
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Nader GPDF, Williart A, Piel M. Nuclear deformations, from signaling to perturbation and damage. Curr Opin Cell Biol 2021; 72:137-145. [PMID: 34461580 DOI: 10.1016/j.ceb.2021.07.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/13/2021] [Accepted: 07/28/2021] [Indexed: 01/07/2023]
Abstract
During cell growth and motility in crowded tissues or interstitial spaces, cells must integrate multiple physical and biochemical environmental inputs. After a number of recent studies, the view of the nucleus as a passive object that cells have to drag along has become obsolete, placing the nucleus as a central player in sensing some of these inputs. In the present review, we will focus on changes in nuclear shape caused by external and internal forces. Depending on their magnitude, nuclear deformations can generate signaling events that modulate cell behavior and fate, or be a source of perturbations or even damage, having detrimental effects on cellular functions. On very large deformations, nuclear envelope rupture events become frequent, leading to uncontrolled nucleocytoplasmic mixing and DNA damage. We will also discuss the consequences of repeated compromised nuclear integrity, which can trigger DNA surveillance mechanisms, with critical consequences to cell fate and tissue homeostasis.
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Affiliation(s)
| | - Alice Williart
- Institut Curie and Institut Pierre Gilles de Gennes, PSL Research University, CNRS, UMR 144, Paris, France
| | - Matthieu Piel
- Institut Curie and Institut Pierre Gilles de Gennes, PSL Research University, CNRS, UMR 144, Paris, France.
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83
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Perspective: The Mechanobiology of Hepatocellular Carcinoma. Cancers (Basel) 2021; 13:cancers13174275. [PMID: 34503085 PMCID: PMC8428343 DOI: 10.3390/cancers13174275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 12/18/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the second most deadly primary cancer in the world and is thus a major global health challenge. HCC primarily develops in patients with an underlying chronic liver disease, the vast majority with advanced cirrhosis, characterized by increased matrix deposition and liver stiffness. Liver stiffness is highly associated with cancer development and poor patient outcome and is measured clinically to assess cancer risk; cirrhotic livers greatly exceed the threshold stiffness shown to alter hepatocyte cell behavior and to increase the malignancy of cancer cells. Recent studies have shown that cirrhotic liver cells have highly irregular nuclear morphologies and that nuclear deformation mediates mechanosensitive signaling. Separate research has shown that nuclear deformation can increase genetic instability and the accumulation of DNA damage in migrating cancer cells. We hypothesize that the mechanical changes associated with chronic liver disease are drivers of oncogenesis, activating mechanosensitive signaling pathways, increasing rates of DNA damage, and ultimately inducing malignant transformation.
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84
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Purkayastha P, Jaiswal MK, Lele TP. Molecular cancer cell responses to solid compressive stress and interstitial fluid pressure. Cytoskeleton (Hoboken) 2021; 78:312-322. [PMID: 34291887 DOI: 10.1002/cm.21680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 01/19/2023]
Abstract
Alterations to the mechanical properties of the microenvironment are a hallmark of cancer. Elevated mechanical stresses exist in many solid tumors and elicit responses from cancer cells. Uncontrolled growth in confined environments gives rise to elevated solid compressive stress on cancer cells. Recruitment of leaky blood vessels and an absence of functioning lymphatic vessels causes a rise in the interstitial fluid pressure. Here we review the role of the cancer cell cytoskeleton and the nucleus in mediating both the initial and adaptive cancer cell response to these two types of mechanical stresses. We review how these mechanical stresses alter cancer cell functions such as proliferation, apoptosis, and migration.
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Affiliation(s)
- Purboja Purkayastha
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, USA
| | - Manish K Jaiswal
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | - Tanmay P Lele
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, USA.,Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA.,Department of Translational Medical Sciences, Texas A&M University, Houston, Texas, USA
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85
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Abstract
The cell nucleus is best known as the container of the genome. Its envelope provides a barrier for passive macromolecule diffusion, which enhances the control of gene expression. As its largest and stiffest organelle, the nucleus also defines the minimal space requirements of a cell. Internal or external pressures that deform a cell to its physical limits cause a corresponding nuclear deformation. Evidence is consolidating that the nucleus, in addition to its genetic functions, serves as a physical sensing device for critical cell body deformation. Nuclear mechanotransduction allows cells to adapt their acute behaviors, mechanical stability, paracrine signaling, and fate to their physical surroundings. This review summarizes the basic chemical and mechanical properties of nuclear components, and how these properties are thought to be utilized for mechanosensing. Expected final online publication date for the Annual Review of Cell and Developmental Biology, Volume 37 is October 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Philipp Niethammer
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
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86
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Engineered ECM models: Opportunities to advance understanding of tumor heterogeneity. Curr Opin Cell Biol 2021; 72:1-9. [PMID: 33991804 DOI: 10.1016/j.ceb.2021.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/27/2021] [Accepted: 04/02/2021] [Indexed: 02/07/2023]
Abstract
Intratumoral heterogeneity is a negative prognostic factor for cancer and commonly attributed to microenvironment-driven genetic mutations and/or the emergence of cancer stem-like cells. How aberrant extracellular matrix (ECM) remodeling regulates the phenotypic diversity of tumor cells, however, remains poorly understood due in part to a lack of model systems that allow isolating the physicochemical heterogeneity of malignancy-associated ECM for mechanistic studies. Here, we review the compositional, microarchitectural, and mechanical hallmarks of cancer-associated ECM and highlight biomaterials and engineering approaches to recapitulate these properties for in vitro and in vivo studies. Subsequently, we describe how such engineered platforms may be explored to define the spatiotemporal dynamics through which cancer-associated ECM remodeling regulates intratumoral heterogeneity and the cancer stem-like cell phenotype. Finally, we highlight future opportunities and technological advances to further elucidate the relationship between tumor-associated ECM dynamics and intratumoral heterogeneity.
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87
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Sahu S, Sridhar D, Abnave P, Kosaka N, Dattani A, Thompson JM, Hill MA, Aboobaker A. Ongoing repair of migration-coupled DNA damage allows planarian adult stem cells to reach wound sites. eLife 2021; 10:e63779. [PMID: 33890575 PMCID: PMC8104965 DOI: 10.7554/elife.63779] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 04/22/2021] [Indexed: 12/21/2022] Open
Abstract
Mechanical stress during cell migration may be a previously unappreciated source of genome instability, but the extent to which this happens in any animal in vivo remains unknown. We consider an in vivo system where the adult stem cells of planarian flatworms are required to migrate to a distal wound site. We observe a relationship between adult stem cell migration and ongoing DNA damage and repair during tissue regeneration. Migrating planarian stem cells undergo changes in nuclear shape and exhibit increased levels of DNA damage. Increased DNA damage levels reduce once stem cells reach the wound site. Stem cells in which DNA damage is induced prior to wounding take longer to initiate migration and migrating stem cell populations are more sensitive to further DNA damage than stationary stem cells. RNAi-mediated knockdown of DNA repair pathway components blocks normal stem cell migration, confirming that active DNA repair pathways are required to allow successful migration to a distal wound site. Together these findings provide evidence that levels of migration-coupled-DNA-damage are significant in adult stem cells and that ongoing migration requires DNA repair mechanisms. Our findings reveal that migration of normal stem cells in vivo represents an unappreciated source of damage, which could be a significant source of mutations in animals during development or during long-term tissue homeostasis.
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Affiliation(s)
- Sounak Sahu
- Department of Zoology, University of OxfordOxfordUnited Kingdom
| | - Divya Sridhar
- Department of Zoology, University of OxfordOxfordUnited Kingdom
| | - Prasad Abnave
- Department of Zoology, University of OxfordOxfordUnited Kingdom
| | | | - Anish Dattani
- Department of Zoology, University of OxfordOxfordUnited Kingdom
| | - James M Thompson
- CRUK/MRC Oxford Institute for Radiation Oncology, ORCRB Roosevelt Drive, University of OxfordOxfordUnited Kingdom
| | - Mark A Hill
- CRUK/MRC Oxford Institute for Radiation Oncology, ORCRB Roosevelt Drive, University of OxfordOxfordUnited Kingdom
| | - Aziz Aboobaker
- Department of Zoology, University of OxfordOxfordUnited Kingdom
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88
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Petrie RJ. Cell Biology: Resolving How DNA Is Damaged during 3D Migration. Curr Biol 2021; 31:R209-R211. [PMID: 33621513 DOI: 10.1016/j.cub.2020.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Cells migrating through confined spaces are subject to mechanical stresses that can deform the nucleus and even rupture the nuclear envelope. A new study reveals that nuclear deformation is sufficient to trigger double-strand breaks at sites of active DNA replication.
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Affiliation(s)
- Ryan J Petrie
- Department of Biology, Drexel University, Room PISB 419, 3245 Chestnut Street, Philadelphia, PA 19104, USA.
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89
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Abstract
Bioimage analysis (BIA) has historically helped study how and why cells move; biological experiments evolved in intimate feedback with the most classical image processing techniques because they contribute objectivity and reproducibility to an eminently qualitative science. Cell segmentation, tracking, and morphology descriptors are all discussed here. Using ameboid motility as a case study, these methods help us illustrate how proper quantification can augment biological data, for example, by choosing mathematical representations that amplify initially subtle differences, by statistically uncovering general laws or by integrating physical insight. More recently, the non-invasive nature of quantitative imaging is fertilizing two blooming fields: mechanobiology, where many biophysical measurements remain inaccessible, and microenvironments, where the quest for physiological relevance has exploded data size. From relief to remedy, this trend indicates that BIA is to become a main vector of biological discovery as human visual analysis struggles against ever more complex data.
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Affiliation(s)
- Aleix Boquet-Pujadas
- Institut Pasteur, Bioimage Analysis Unit, 25 rue du Dr. Roux, Paris Cedex 15 75724, France
- Centre National de la Recherche Scientifique, CNRS UMR3691, Paris, France
- Sorbonne Université, Paris 75005, France
| | - Jean-Christophe Olivo-Marin
- Institut Pasteur, Bioimage Analysis Unit, 25 rue du Dr. Roux, Paris Cedex 15 75724, France
- Centre National de la Recherche Scientifique, CNRS UMR3691, Paris, France
| | - Nancy Guillén
- Institut Pasteur, Bioimage Analysis Unit, 25 rue du Dr. Roux, Paris Cedex 15 75724, France
- Centre National de la Recherche Scientifique, CNRS ERL9195, Paris, France
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