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Schvarzstein M, Alam F, Toure M, Yanowitz JL. An Emerging Animal Model for Querying the Role of Whole Genome Duplication in Development, Evolution, and Disease. J Dev Biol 2023; 11:26. [PMID: 37367480 PMCID: PMC10299280 DOI: 10.3390/jdb11020026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/23/2023] [Accepted: 06/01/2023] [Indexed: 06/28/2023] Open
Abstract
Whole genome duplication (WGD) or polyploidization can occur at the cellular, tissue, and organismal levels. At the cellular level, tetraploidization has been proposed as a driver of aneuploidy and genome instability and correlates strongly with cancer progression, metastasis, and the development of drug resistance. WGD is also a key developmental strategy for regulating cell size, metabolism, and cellular function. In specific tissues, WGD is involved in normal development (e.g., organogenesis), tissue homeostasis, wound healing, and regeneration. At the organismal level, WGD propels evolutionary processes such as adaptation, speciation, and crop domestication. An essential strategy to further our understanding of the mechanisms promoting WGD and its effects is to compare isogenic strains that differ only in their ploidy. Caenorhabditis elegans (C. elegans) is emerging as an animal model for these comparisons, in part because relatively stable and fertile tetraploid strains can be produced rapidly from nearly any diploid strain. Here, we review the use of Caenorhabditis polyploids as tools to understand important developmental processes (e.g., sex determination, dosage compensation, and allometric relationships) and cellular processes (e.g., cell cycle regulation and chromosome dynamics during meiosis). We also discuss how the unique characteristics of the C. elegans WGD model will enable significant advances in our understanding of the mechanisms of polyploidization and its role in development and disease.
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Affiliation(s)
- Mara Schvarzstein
- Biology Department, Brooklyn College at the City University of New York, Brooklyn, NY 11210, USA
- Biology Department, The Graduate Center at the City University of New York, New York, NY 10016, USA
- Biochemistry Department, The Graduate Center at the City University of New York, New York, NY 10016, USA
| | - Fatema Alam
- Biology Department, Brooklyn College at the City University of New York, Brooklyn, NY 11210, USA
| | - Muhammad Toure
- Biology Department, Brooklyn College at the City University of New York, Brooklyn, NY 11210, USA
| | - Judith L. Yanowitz
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA;
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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2
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Polyploidy and Myc Proto-Oncogenes Promote Stress Adaptation via Epigenetic Plasticity and Gene Regulatory Network Rewiring. Int J Mol Sci 2022; 23:ijms23179691. [PMID: 36077092 PMCID: PMC9456078 DOI: 10.3390/ijms23179691] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Polyploid cells demonstrate biological plasticity and stress adaptation in evolution; development; and pathologies, including cardiovascular diseases, neurodegeneration, and cancer. The nature of ploidy-related advantages is still not completely understood. Here, we summarize the literature on molecular mechanisms underlying ploidy-related adaptive features. Polyploidy can regulate gene expression via chromatin opening, reawakening ancient evolutionary programs of embryonality. Chromatin opening switches on genes with bivalent chromatin domains that promote adaptation via rapid induction in response to signals of stress or morphogenesis. Therefore, stress-associated polyploidy can activate Myc proto-oncogenes, which further promote chromatin opening. Moreover, Myc proto-oncogenes can trigger polyploidization de novo and accelerate genome accumulation in already polyploid cells. As a result of these cooperative effects, polyploidy can increase the ability of cells to search for adaptive states of cellular programs through gene regulatory network rewiring. This ability is manifested in epigenetic plasticity associated with traits of stemness, unicellularity, flexible energy metabolism, and a complex system of DNA damage protection, combining primitive error-prone unicellular repair pathways, advanced error-free multicellular repair pathways, and DNA damage-buffering ability. These three features can be considered important components of the increased adaptability of polyploid cells. The evidence presented here contribute to the understanding of the nature of stress resistance associated with ploidy and may be useful in the development of new methods for the prevention and treatment of cardiovascular and oncological diseases.
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3
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Targeting tumor cell senescence and polyploidy as potential therapeutic strategies. Semin Cancer Biol 2022; 81:37-47. [PMID: 33358748 PMCID: PMC8214633 DOI: 10.1016/j.semcancer.2020.12.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/07/2020] [Accepted: 12/07/2020] [Indexed: 01/14/2023]
Abstract
Senescence is a unique state of growth arrest that develops in response to a plethora of cellular stresses, including replicative exhaustion, oxidative injury, and genotoxic insults. Senescence has been implicated in the pathogenesis of multiple aging-related pathologies, including cancer. In cancer, senescence plays a dual role, initially acting as a barrier against tumor progression by enforcing a durable growth arrest in premalignant cells, but potentially promoting malignant transformation in neighboring cells through the secretion of pro-tumorigenic drivers. Moreover, senescence is induced in tumor cells upon exposure to a wide variety of conventional and targeted anticancer drugs (termed Therapy-Induced Senescence-TIS), representing a critical contributing factor to therapeutic outcomes. As with replicative or oxidative senescence, TIS manifests as a complex phenotype of macromolecular damage, energetic dysregulation, and altered gene expression. Senescent cells are also frequently polyploid. In vitro studies have suggested that polyploidy may confer upon senescent tumor cells the ability to escape from growth arrest, thereby providing an additional avenue whereby tumor cells escape the lethality of anticancer treatment. Polyploidy in tumor cells is also associated with persistent energy production, chromatin remodeling, self-renewal, stemness and drug resistance - features that are also associated with escape from senescence and conversion to a more malignant phenotype. However, senescent cells are highly heterogenous and can present with variable phenotypes, where polyploidy is one component of a complex reversion process. Lastly, emerging efforts to pharmacologically target polyploid tumor cells might pave the way towards the identification of novel targets for the elimination of senescent tumor cells by the incorporation of senolytic agents into cancer therapeutic strategies.
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Fakhri S, Zachariah Moradi S, DeLiberto LK, Bishayee A. Cellular senescence signaling in cancer: A novel therapeutic target to combat human malignancies. Biochem Pharmacol 2022; 199:114989. [DOI: 10.1016/j.bcp.2022.114989] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/05/2022] [Accepted: 03/07/2022] [Indexed: 12/26/2022]
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5
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Molecular Mechanisms of Kidney Injury and Repair. Int J Mol Sci 2022; 23:ijms23031542. [PMID: 35163470 PMCID: PMC8835923 DOI: 10.3390/ijms23031542] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 12/17/2022] Open
Abstract
Chronic kidney disease (CKD) will become the fifth global cause of death by 2040, thus emphasizing the need to better understand the molecular mechanisms of damage and regeneration in the kidney. CKD predisposes to acute kidney injury (AKI) which, in turn, promotes CKD progression. This implies that CKD or the AKI-to-CKD transition are associated with dysfunctional kidney repair mechanisms. Current therapeutic options slow CKD progression but fail to treat or accelerate recovery from AKI and are unable to promote kidney regeneration. Unraveling the cellular and molecular mechanisms involved in kidney injury and repair, including the failure of this process, may provide novel biomarkers and therapeutic tools. We now review the contribution of different molecular and cellular events to the AKI-to-CKD transition, focusing on the role of macrophages in kidney injury, the different forms of regulated cell death and necroinflammation, cellular senescence and the senescence-associated secretory phenotype (SAPS), polyploidization, and podocyte injury and activation of parietal epithelial cells. Next, we discuss key contributors to repair of kidney injury and opportunities for their therapeutic manipulation, with a focus on resident renal progenitor cells, stem cells and their reparative secretome, certain macrophage subphenotypes within the M2 phenotype and senescent cell clearance.
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Donne R, Sangouard F, Celton-Morizur S, Desdouets C. Hepatocyte Polyploidy: Driver or Gatekeeper of Chronic Liver Diseases. Cancers (Basel) 2021; 13:cancers13205151. [PMID: 34680300 PMCID: PMC8534039 DOI: 10.3390/cancers13205151] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/11/2021] [Accepted: 10/11/2021] [Indexed: 12/25/2022] Open
Abstract
Polyploidy, also known as whole-genome amplification, is a condition in which the organism has more than two basic sets of chromosomes. Polyploidy frequently arises during tissue development and repair, and in age-associated diseases, such as cancer. Its consequences are diverse and clearly different between systems. The liver is a particularly fascinating organ in that it can adapt its ploidy to the physiological and pathological context. Polyploid hepatocytes are characterized in terms of the number of nuclei per cell (cellular ploidy; mononucleate/binucleate hepatocytes) and the number of chromosome sets in each nucleus (nuclear ploidy; diploid, tetraploid, octoploid). The advantages and disadvantages of polyploidy in mammals are not fully understood. About 30% of the hepatocytes in the human liver are polyploid. In this review, we explore the mechanisms underlying the development of polyploid cells, our current understanding of the regulation of polyploidization during development and pathophysiology and its consequences for liver function. We will also provide data shedding light on the ways in which polyploid hepatocytes cope with centrosome amplification. Finally, we discuss recent discoveries highlighting the possible roles of liver polyploidy in protecting against tumor formation, or, conversely, contributing to liver tumorigenesis.
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Affiliation(s)
- Romain Donne
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Liver Cancer Program, Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, Tisch Cancer Institute, New York, NY 10029, USA
- Icahn School of Medicine at Mount Sinai, The Precision Immunology Institute, New York, NY 10029, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Flora Sangouard
- Laboratory of Proliferation, Stress and Liver Physiopathology, Centre de Recherche des Cordeliers, F-75006 Paris, France;
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, F-75006 Paris, France
| | - Séverine Celton-Morizur
- Laboratory of Proliferation, Stress and Liver Physiopathology, Centre de Recherche des Cordeliers, F-75006 Paris, France;
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, F-75006 Paris, France
- Correspondence: (S.C.-M.); (C.D.)
| | - Chantal Desdouets
- Laboratory of Proliferation, Stress and Liver Physiopathology, Centre de Recherche des Cordeliers, F-75006 Paris, France;
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, F-75006 Paris, France
- Correspondence: (S.C.-M.); (C.D.)
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7
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Almeida Machado Costa C, Wang XF, Ellsworth C, Deng WM. Polyploidy in development and tumor models in Drosophila. Semin Cancer Biol 2021; 81:106-118. [PMID: 34562587 DOI: 10.1016/j.semcancer.2021.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 09/03/2021] [Accepted: 09/18/2021] [Indexed: 12/26/2022]
Abstract
Polyploidy, a cell status defined as more than two sets of genomic DNA, is a conserved strategy across species that can increase cell size and biosynthetic production, but the functional aspects of polyploidy are nuanced and vary across cell types. Throughout Drosophila developmental stages (embryo, larva, pupa and adult), polyploid cells are present in numerous organs and help orchestrate development while contributing to normal growth, well-being and homeostasis of the organism. Conversely, increasing evidence has shown that polyploid cells are prevalent in Drosophila tumors and play important roles in tumor growth and invasiveness. Here, we summarize the genes and pathways involved in polyploidy during normal and tumorigenic development, the mechanisms underlying polyploidization, and the functional aspects of polyploidy in development, homeostasis and tumorigenesis in the Drosophila model.
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Affiliation(s)
- Caique Almeida Machado Costa
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, United States
| | - Xian-Feng Wang
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, United States
| | - Calder Ellsworth
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, United States
| | - Wu-Min Deng
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, United States.
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Nandakumar S, Rozich E, Buttitta L. Cell Cycle Re-entry in the Nervous System: From Polyploidy to Neurodegeneration. Front Cell Dev Biol 2021; 9:698661. [PMID: 34249947 PMCID: PMC8264763 DOI: 10.3389/fcell.2021.698661] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 05/19/2021] [Indexed: 12/15/2022] Open
Abstract
Terminally differentiated cells of the nervous system have long been considered to be in a stable non-cycling state and are often considered to be permanently in G0. Exit from the cell cycle during development is often coincident with the differentiation of neurons, and is critical for neuronal function. But what happens in long lived postmitotic tissues that accumulate cell damage or suffer cell loss during aging? In other contexts, cells that are normally non-dividing or postmitotic can or re-enter the cell cycle and begin replicating their DNA to facilitate cellular growth in response to cell loss. This leads to a state called polyploidy, where cells contain multiple copies of the genome. A growing body of literature from several vertebrate and invertebrate model organisms has shown that polyploidy in the nervous system may be more common than previously appreciated and occurs under normal physiological conditions. Moreover, it has been found that neuronal polyploidization can play a protective role when cells are challenged with DNA damage or oxidative stress. By contrast, work over the last two and a half decades has discovered a link between cell-cycle reentry in neurons and several neurodegenerative conditions. In this context, neuronal cell cycle re-entry is widely considered to be aberrant and deleterious to neuronal health. In this review, we highlight historical and emerging reports of polyploidy in the nervous systems of various vertebrate and invertebrate organisms. We discuss the potential functions of polyploidization in the nervous system, particularly in the context of long-lived cells and age-associated polyploidization. Finally, we attempt to reconcile the seemingly disparate associations of neuronal polyploidy with both neurodegeneration and neuroprotection.
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Affiliation(s)
| | | | - Laura Buttitta
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
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Chen T, Zeineldin M, Johnson BA, Dong Y, Narkar A, Li T, Zhu J, Li R, Larman TC. Colonic epithelial adaptation to EGFR-independent growth induces chromosomal instability and is accelerated by prior injury. Neoplasia 2021; 23:488-501. [PMID: 33906087 PMCID: PMC8099723 DOI: 10.1016/j.neo.2021.03.010] [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: 02/02/2021] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 11/17/2022]
Abstract
Although much is known about the gene mutations required to drive colorectal cancer (CRC) initiation, the tissue-specific selective microenvironments in which neoplasia arises remains less characterized. Here, we determined whether modulation of intestinal stem cell niche morphogens alone can exert a neoplasia-relevant selective pressure on normal colonic epithelium. Using adult stem cell-derived murine colonic epithelial organoids (colonoids), we employed a strategy of sustained withdrawal of epidermal growth factor (EGF) and epidermal growth factor receptor (EGFR) inhibition to select for and expand survivors. EGFR-signaling-independent (iEGFR) colonoids emerged over rounds of selection and expansion. Colonoids derived from a mouse model of chronic mucosal injury showed an enhanced ability to adapt to EGFR inhibition. Whole-exome and transcriptomic analyses of iEGFR colonoids demonstrated acquisition of deleterious mutations and altered expression of genes implicated in EGF signaling, pyroptosis, and CRC. iEGFR colonoids acquired dysplasia-associated cytomorphologic changes, an increased proliferative rate, and the ability to survive independently of other required niche factors. These changes were accompanied by emergence of aneuploidy and chromosomal instability; further, the observed mitotic segregation errors were significantly associated with loss of interkinetic nuclear migration, a fundamental and dynamic process underlying intestinal epithelial homeostasis. This study provides key evidence that chromosomal instability and other phenotypes associated with neoplasia can be induced ex vivo via adaptation to EGF withdrawal in normal and stably euploid colonic epithelium, without introducing cancer-associated driver mutations. In addition, prior mucosal injury accelerates this evolutionary process.
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Affiliation(s)
- Tiane Chen
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins University School of Medicine, Baltimore, MD USA; Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Maged Zeineldin
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins University School of Medicine, Baltimore, MD USA; Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Blake A Johnson
- Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA; Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD USA; Medical Scientist Training Program, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Yi Dong
- Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA; Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Akshay Narkar
- Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA; Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Taibo Li
- Medical Scientist Training Program, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Jin Zhu
- Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA; Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Rong Li
- Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA; Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD USA; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD USA; Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, Singapore
| | - Tatianna C Larman
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins University School of Medicine, Baltimore, MD USA; Center for Cell Dynamics, Johns Hopkins University School of Medicine, Baltimore, MD USA.
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Was H, Borkowska A, Olszewska A, Klemba A, Marciniak M, Synowiec A, Kieda C. Polyploidy formation in cancer cells: How a Trojan horse is born. Semin Cancer Biol 2021; 81:24-36. [PMID: 33727077 DOI: 10.1016/j.semcancer.2021.03.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/29/2021] [Accepted: 03/03/2021] [Indexed: 01/04/2023]
Abstract
Ploidy increase has been shown to occur in different type of tumors and participate in tumor initiation and resistance to the treatment. Polyploid giant cancer cells (PGCCs) are cells with multiple nuclei or a single giant nucleus containing multiple complete sets of chromosomes. The mechanism leading to formation of PGCCs may depend on: endoreplication, mitotic slippage, cytokinesis failure, cell fusion or cell cannibalism. Polyploidy formation might be triggered in response to various genotoxic stresses including: chemotherapeutics, radiation, hypoxia, oxidative stress or environmental factors like: air pollution, UV light or hyperthermia. A fundamental feature of polyploid cancer cells is the generation of progeny during the reversal of the polyploid state (depolyploidization) that may show high aggressiveness resulting in the formation of resistant disease and tumor recurrence. Therefore, we propose that modern anti-cancer therapies should be designed taking under consideration polyploidization/ depolyploidization processes, which confer the polyploidization a hidden potential similar to a Trojan horse delayed aggressiveness. Various mechanisms and stress factors leading to polyploidy formation in cancer cells are discussed in this review.
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Affiliation(s)
- Halina Was
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Szaserow 128 Street, Warsaw, Poland.
| | - Agata Borkowska
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Szaserow 128 Street, Warsaw, Poland; Postgraduate School of Molecular Medicine, Zwirki i Wigury 61 Street, Warsaw, Poland
| | - Aleksandra Olszewska
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Szaserow 128 Street, Warsaw, Poland; Postgraduate School of Molecular Medicine, Zwirki i Wigury 61 Street, Warsaw, Poland
| | - Aleksandra Klemba
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Szaserow 128 Street, Warsaw, Poland; College of Inter-Faculty Individual Studies in Mathematics and Natural Sciences, University of Warsaw, Banacha 2c Street, Warsaw, Poland
| | - Marta Marciniak
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Szaserow 128 Street, Warsaw, Poland
| | - Agnieszka Synowiec
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Szaserow 128 Street, Warsaw, Poland
| | - Claudine Kieda
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Szaserow 128 Street, Warsaw, Poland
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11
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Cancer cells employ an evolutionarily conserved polyploidization program to resist therapy. Semin Cancer Biol 2020; 81:145-159. [PMID: 33276091 DOI: 10.1016/j.semcancer.2020.11.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/24/2022]
Abstract
Unusually large cancer cells with abnormal nuclei have been documented in the cancer literature since 1858. For more than 100 years, they have been generally disregarded as irreversibly senescent or dying cells, too morphologically misshapen and chromatin too disorganized to be functional. Cell enlargement, accompanied by whole genome doubling or more, is observed across organisms, often associated with mitigation strategies against environmental change, severe stress, or the lack of nutrients. Our comparison of the mechanisms for polyploidization in other organisms and non-transformed tissues suggest that cancer cells draw from a conserved program for their survival, utilizing whole genome doubling and pausing proliferation to survive stress. These polyaneuploid cancer cells (PACCs) are the source of therapeutic resistance, responsible for cancer recurrence and, ultimately, cancer lethality.
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12
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Nandakumar S, Grushko O, Buttitta LA. Polyploidy in the adult Drosophila brain. eLife 2020; 9:e54385. [PMID: 32840209 PMCID: PMC7447450 DOI: 10.7554/elife.54385] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 08/07/2020] [Indexed: 12/12/2022] Open
Abstract
Long-lived cells such as terminally differentiated postmitotic neurons and glia must cope with the accumulation of damage over the course of an animal's lifespan. How long-lived cells deal with ageing-related damage is poorly understood. Here we show that polyploid cells accumulate in the adult fly brain and that polyploidy protects against DNA damage-induced cell death. Multiple types of neurons and glia that are diploid at eclosion, become polyploid in the adult Drosophila brain. The optic lobes exhibit the highest levels of polyploidy, associated with an elevated DNA damage response in this brain region. Inducing oxidative stress or exogenous DNA damage leads to an earlier onset of polyploidy, and polyploid cells in the adult brain are more resistant to DNA damage-induced cell death than diploid cells. Our results suggest polyploidy may serve a protective role for neurons and glia in adult Drosophila melanogaster brains.
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Affiliation(s)
- Shyama Nandakumar
- Molecular, Cellular, and Developmental Biology, University of MichiganAnn ArborUnited States
| | - Olga Grushko
- Molecular, Cellular, and Developmental Biology, University of MichiganAnn ArborUnited States
| | - Laura A Buttitta
- Molecular, Cellular, and Developmental Biology, University of MichiganAnn ArborUnited States
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13
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Cancer regeneration: Polyploid cells are the key drivers of tumor progression. Biochim Biophys Acta Rev Cancer 2020; 1874:188408. [PMID: 32827584 DOI: 10.1016/j.bbcan.2020.188408] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/16/2020] [Accepted: 07/23/2020] [Indexed: 12/15/2022]
Abstract
In spite of significant advancements of therapies for initial eradication of cancers, tumor relapse remains a major challenge. It is for a long time known that polyploid malignant cells are a main source of resistance against chemotherapy and irradiation. However, therapeutic approaches targeting these cells have not been appropriately pursued which could partly be due to the shortage of knowledge on the molecular biology of cell polyploidy. On the other hand, there is a rising trend to appreciate polyploid/ multinucleated cells as key players in tissue regeneration. In this review, we suggest an analogy between the functions of polyploid cells in normal and malignant tissues and discuss the idea that cell polyploidy is an evolutionary conserved source of tissue regeneration also exploited by cancers as a survival factor. In addition, polyploid cells are highlighted as a promising therapeutic target to overcome drug resistance and relapse.
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14
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Abstract
Polyploidy (or whole-genome duplication) is the condition of having more than two basic sets of chromosomes. Polyploidization is well tolerated in many species and can lead to specific biological functions. In mammals, programmed polyploidization takes place during development in certain tissues, such as the heart and placenta, and is considered a feature of differentiation. However, unscheduled polyploidization can cause genomic instability and has been observed in pathological conditions, such as cancer. Polyploidy of the liver parenchyma was first described more than 100 years ago. The liver is one of the few mammalian organs that display changes in polyploidy during homeostasis, regeneration and in response to damage. In the human liver, approximately 30% of hepatocytes are polyploid. The polyploidy of hepatocytes results from both nuclear polyploidy (an increase in the amount of DNA per nucleus) and cellular polyploidy (an increase in the number of nuclei per cell). In this Review, we discuss the regulation of polyploidy in liver development and pathophysiology. We also provide an overview of current knowledge about the mechanisms of hepatocyte polyploidization, its biological importance and the fate of polyploid hepatocytes during liver tumorigenesis.
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15
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Broughton KM, Khieu T, Nguyen N, Rosa M, Mohsin S, Quijada P, Wang BJ, Echeagaray OH, Kubli DA, Kim T, Firouzi F, Monsanto MM, Gude NA, Adamson RM, Dembitsky WP, Davis ME, Sussman MA. Cardiac interstitial tetraploid cells can escape replicative senescence in rodents but not large mammals. Commun Biol 2019; 2:205. [PMID: 31231694 PMCID: PMC6565746 DOI: 10.1038/s42003-019-0453-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 05/02/2019] [Indexed: 12/26/2022] Open
Abstract
Cardiomyocyte ploidy has been described but remains obscure in cardiac interstitial cells. Ploidy of c-kit+ cardiac interstitial cells was assessed using confocal, karyotypic, and flow cytometric technique. Notable differences were found between rodent (rat, mouse) c-kit+ cardiac interstitial cells possessing mononuclear tetraploid (4n) content, compared to large mammals (human, swine) with mononuclear diploid (2n) content. In-situ analysis, confirmed with fresh isolates, revealed diploid content in human c-kit+ cardiac interstitial cells and a mixture of diploid and tetraploid content in mouse. Downregulation of the p53 signaling pathway provides evidence why rodent, but not human, c-kit+ cardiac interstitial cells escape replicative senescence. Single cell transcriptional profiling reveals distinctions between diploid versus tetraploid populations in mouse c-kit+ cardiac interstitial cells, alluding to functional divergences. Collectively, these data reveal notable species-specific biological differences in c-kit+ cardiac interstitial cells, which could account for challenges in extrapolation of myocardial from preclinical studies to clinical trials.
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Affiliation(s)
- Kathleen M. Broughton
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Tiffany Khieu
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Nicky Nguyen
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Michael Rosa
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Sadia Mohsin
- Cardiovascular Research Center, Temple University, 3500 N. Broad St., Philadelphia, 19140 PA USA
| | - Pearl Quijada
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Bingyan J. Wang
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Oscar H. Echeagaray
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Dieter A. Kubli
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Taeyong Kim
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Fareheh Firouzi
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Megan M. Monsanto
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Natalie A. Gude
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Robert M. Adamson
- Division of Cardiology, Sharp Memorial Hospital, 8010 Frost St., San Diego, 92123 CA USA
| | - Walter P. Dembitsky
- Division of Cardiology, Sharp Memorial Hospital, 8010 Frost St., San Diego, 92123 CA USA
| | - Michael E. Davis
- Biomedical Engineering and Medicine, Emory University, 1760 Haygood Dr., Atlanta, 30322 GA USA
| | - Mark A. Sussman
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
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16
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Gjelsvik KJ, Besen-McNally R, Losick VP. Solving the Polyploid Mystery in Health and Disease. Trends Genet 2019; 35:6-14. [PMID: 30470486 PMCID: PMC6457904 DOI: 10.1016/j.tig.2018.10.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/12/2018] [Accepted: 10/22/2018] [Indexed: 01/12/2023]
Abstract
Polyploidy (the more than doubling of a cell's genome) frequently arises during organogenesis, tissue repair, and age-associated diseases. Despite its prevalence, major gaps exist in how polyploid cells emerge and affect tissue function. Studies have begun to elucidate the signals required for polyploid cell growth as well as the advantages and disadvantages of polyploidy in health and disease. This review highlights the recent advances on the role and regulation of polyploidy in Drosophila and vertebrate models. The newly discovered versatility of polyploid cells has the potential to provide alternative strategies to promote tissue growth and repair, while limiting disease and dysfunction.
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Affiliation(s)
- K J Gjelsvik
- MDI Biological Laboratory, 159 Old Bar Harbor Road, Bar Harbor, ME 04609, USA
| | - R Besen-McNally
- MDI Biological Laboratory, 159 Old Bar Harbor Road, Bar Harbor, ME 04609, USA
| | - V P Losick
- MDI Biological Laboratory, 159 Old Bar Harbor Road, Bar Harbor, ME 04609, USA.
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17
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Abstract
Polyploid cells, which contain multiple copies of the typically diploid genome, are widespread in plants and animals. Polyploidization can be developmentally programmed or stress induced, and arises from either cell-cell fusion or a process known as endoreplication, in which cells replicate their DNA but either fail to complete cytokinesis or to progress through M phase entirely. Polyploidization offers cells several potential fitness benefits, including the ability to increase cell size and biomass production without disrupting cell and tissue structure, and allowing improved cell longevity through higher tolerance to genomic stress and apoptotic signals. Accordingly, recent studies have uncovered crucial roles for polyploidization in compensatory cell growth during tissue regeneration in the heart, liver, epidermis and intestine. Here, we review current knowledge of the molecular pathways that generate polyploidy and discuss how polyploidization is used in tissue repair and regeneration.
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Affiliation(s)
| | - Bruce A Edgar
- Huntsman Cancer Institute, Salt Lake City, UT 84112, USA
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18
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dos Santos DM, Aldrovani M, Filezio MR, Abreu TGM, Balthazar da Silveira CP, Cruz NRDN, Laus JL. Nuclear parameters and chromatin remodeling in epithelial cells and lymphocytes from the palpebral conjunctiva of dogs with keratoconjunctivitis sicca. Vet Ophthalmol 2018; 22:39-49. [DOI: 10.1111/vop.12564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Daniela Moura dos Santos
- Department of Clinics and Veterinary Surgery; School of Agricultural and Veterinarian Sciences (FCAV); Sao Paulo State University (Unesp); Jaboticabal Brasil
| | - Marcela Aldrovani
- Department of Clinics and Veterinary Surgery; School of Agricultural and Veterinarian Sciences (FCAV); Sao Paulo State University (Unesp); Jaboticabal Brasil
| | - Marcella Rosa Filezio
- Department of Clinics and Veterinary Surgery; School of Agricultural and Veterinarian Sciences (FCAV); Sao Paulo State University (Unesp); Jaboticabal Brasil
| | - Thais Guimarães Morato Abreu
- Department of Clinics and Veterinary Surgery; School of Agricultural and Veterinarian Sciences (FCAV); Sao Paulo State University (Unesp); Jaboticabal Brasil
| | - Camila Pinho Balthazar da Silveira
- Department of Clinics and Veterinary Surgery; School of Agricultural and Veterinarian Sciences (FCAV); Sao Paulo State University (Unesp); Jaboticabal Brasil
| | - Nathan Rocha das Neves Cruz
- Department of Clinics and Veterinary Surgery; School of Agricultural and Veterinarian Sciences (FCAV); Sao Paulo State University (Unesp); Jaboticabal Brasil
| | - José Luiz Laus
- Department of Clinics and Veterinary Surgery; School of Agricultural and Veterinarian Sciences (FCAV); Sao Paulo State University (Unesp); Jaboticabal Brasil
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19
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Losick VP, Jun AS, Spradling AC. Wound-Induced Polyploidization: Regulation by Hippo and JNK Signaling and Conservation in Mammals. PLoS One 2016; 11:e0151251. [PMID: 26958853 PMCID: PMC4784922 DOI: 10.1371/journal.pone.0151251] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 02/25/2016] [Indexed: 12/13/2022] Open
Abstract
Tissue integrity and homeostasis often rely on the proliferation of stem cells or differentiated cells to replace lost, aged, or damaged cells. Recently, we described an alternative source of cell replacement- the expansion of resident, non-dividing diploid cells by wound-induced polyploidization (WIP). Here we show that the magnitude of WIP is proportional to the extent of cell loss using a new semi-automated assay with single cell resolution. Hippo and JNK signaling regulate WIP; unexpectedly however, JNK signaling through AP-1 limits rather than stimulates the level of Yki activation and polyploidization in the Drosophila epidermis. We found that polyploidization also quantitatively compensates for cell loss in a mammalian tissue, mouse corneal endothelium, where increased cell death occurs with age in a mouse model of Fuchs Endothelial Corneal Dystrophy (FECD). Our results suggest that WIP is an evolutionarily conserved homeostatic mechanism that maintains the size and synthetic capacity of adult tissues.
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Affiliation(s)
- Vicki P. Losick
- Department of Embryology, Carnegie Institution for Science, Howard Hughes Medical Institute, 3250 San Martin Dr., Baltimore, MD 21218, United States of America
| | - Albert S. Jun
- Wilmer Eye Institute, Johns Hopkins School of Medicine, 400 N. Broadway, Baltimore, MD 21231, United States of America
| | - Allan C. Spradling
- Department of Embryology, Carnegie Institution for Science, Howard Hughes Medical Institute, 3250 San Martin Dr., Baltimore, MD 21218, United States of America
- * E-mail:
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