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Levi N, Papismadov N, Majewska J, Roitman L, Wigoda N, Eilam R, Tsoory M, Rotkopf R, Ovadya Y, Akiva H, Regev O, Krizhanovsky V. p21 facilitates chronic lung inflammation via epithelial and endothelial cells. Aging (Albany NY) 2023; 15:2395-2417. [PMID: 36996500 PMCID: PMC10120903 DOI: 10.18632/aging.204622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 03/17/2023] [Indexed: 04/01/2023]
Abstract
Cellular senescence is a stable state of cell cycle arrest that regulates tissue integrity and protects the organism from tumorigenesis. However, the accumulation of senescent cells during aging contributes to age-related pathologies. One such pathology is chronic lung inflammation. p21 (CDKN1A) regulates cellular senescence via inhibition of cyclin-dependent kinases (CDKs). However, its role in chronic lung inflammation and functional impact on chronic lung disease, where senescent cells accumulate, is less understood. To elucidate the role of p21 in chronic lung inflammation, we subjected p21 knockout (p21-/-) mice to repetitive inhalations of lipopolysaccharide (LPS), an exposure that leads to chronic bronchitis and accumulation of senescent cells. p21 knockout led to a reduced presence of senescent cells, alleviated the pathological manifestations of chronic lung inflammation, and improved the fitness of the mice. The expression profiling of the lung cells revealed that resident epithelial and endothelial cells, but not immune cells, play a significant role in mediating the p21-dependent inflammatory response following chronic LPS exposure. Our results implicate p21 as a critical regulator of chronic bronchitis and a driver of chronic airway inflammation and lung destruction.
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Affiliation(s)
- Naama Levi
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Nurit Papismadov
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Julia Majewska
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Lior Roitman
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Noa Wigoda
- Department of Life Sciences Core Facilities, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Raya Eilam
- Department of Veterinary Resources, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Michael Tsoory
- Department of Veterinary Resources, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Ron Rotkopf
- Department of Life Sciences Core Facilities, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Yossi Ovadya
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Hagay Akiva
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Ofer Regev
- Department of Immunology, The Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 7610001, Israel
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2
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Kolodkin-Gal D, Roitman L, Ovadya Y, Azazmeh N, Assouline B, Schlesinger Y, Kalifa R, Horwitz S, Khalatnik Y, Hochner-Ger A, Imam A, Demma JA, Winter E, Benyamini H, Elgavish S, Khatib AAS, Meir K, Atlan K, Pikarsky E, Parnas O, Dor Y, Zamir G, Ben-Porath I, Krizhanovsky V. Senolytic elimination of Cox2-expressing senescent cells inhibits the growth of premalignant pancreatic lesions. Gut 2022; 71:345-355. [PMID: 33649045 PMCID: PMC8762039 DOI: 10.1136/gutjnl-2020-321112] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Cellular senescence limits tumourigenesis by blocking the proliferation of premalignant cells. Additionally, however, senescent cells can exert paracrine effects influencing tumour growth. Senescent cells are present in premalignant pancreatic intraepithelial neoplasia (PanIN) lesions, yet their effects on the disease are poorly characterised. It is currently unknown whether senolytic drugs, aimed at eliminating senescent cells from lesions, could be beneficial in blocking tumour development. DESIGN To uncover the functions of senescent cells and their potential contribution to early pancreatic tumourigenesis, we isolated and characterised senescent cells from PanINs formed in a Kras-driven mouse model, and tested the consequences of their targeted elimination through senolytic treatment. RESULTS We found that senescent PanIN cells exert a tumour-promoting effect through expression of a proinflammatory signature that includes high Cox2 levels. Senolytic treatment with the Bcl2-family inhibitor ABT-737 eliminated Cox2-expressing senescent cells, and an intermittent short-duration treatment course dramatically reduced PanIN development and progression to pancreatic ductal adenocarcinoma. CONCLUSIONS These findings reveal that senescent PanIN cells support tumour growth and progression, and provide a first indication that elimination of senescent cells may be effective as preventive therapy for the progression of precancerous lesions.
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Affiliation(s)
- Dror Kolodkin-Gal
- Department of Developmental Biology and Cancer Research, Institute for Medical Research – Israel-Canada, The Hebrew University–Hadassah Medical School, Jerusalem, Israel,Department of Surgery, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Lior Roitman
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Yossi Ovadya
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Narmen Azazmeh
- Department of Developmental Biology and Cancer Research, Institute for Medical Research – Israel-Canada, The Hebrew University–Hadassah Medical School, Jerusalem, Israel
| | - Benjamin Assouline
- Department of Developmental Biology and Cancer Research, Institute for Medical Research – Israel-Canada, The Hebrew University–Hadassah Medical School, Jerusalem, Israel
| | - Yehuda Schlesinger
- The Concern Foundation Laboratories at the Lautenberg Center for Immunology and Cancer Research, IMRIC, Faculty of Medicine, Hebrew University–Hadassah Medical School, Jerusalem, Israel
| | - Rachel Kalifa
- Department of Developmental Biology and Cancer Research, Institute for Medical Research – Israel-Canada, The Hebrew University–Hadassah Medical School, Jerusalem, Israel,Department of Surgery, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Shaul Horwitz
- Department of Developmental Biology and Cancer Research, Institute for Medical Research – Israel-Canada, The Hebrew University–Hadassah Medical School, Jerusalem, Israel,Department of Surgery, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Yonatan Khalatnik
- Department of Developmental Biology and Cancer Research, Institute for Medical Research – Israel-Canada, The Hebrew University–Hadassah Medical School, Jerusalem, Israel,Department of Surgery, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Anna Hochner-Ger
- Department of Developmental Biology and Cancer Research, Institute for Medical Research – Israel-Canada, The Hebrew University–Hadassah Medical School, Jerusalem, Israel,Department of Surgery, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Ashraf Imam
- Department of Surgery, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | | | - Eitan Winter
- Info-CORE, Bioinformatics Unit of the I-CORE at the Hebrew University and Hadassah Medical Center, Jerusalem, Israel
| | - Hadar Benyamini
- Info-CORE, Bioinformatics Unit of the I-CORE at the Hebrew University and Hadassah Medical Center, Jerusalem, Israel
| | - Sharona Elgavish
- Info-CORE, Bioinformatics Unit of the I-CORE at the Hebrew University and Hadassah Medical Center, Jerusalem, Israel
| | - Areej AS Khatib
- Master of Biotechnology Department, Faculty of Science, Bethlehem University, Bethlehem, Palestine
| | - Karen Meir
- Department of Pathology, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Karine Atlan
- Department of Pathology, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Eli Pikarsky
- Department of Pathology, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Oren Parnas
- The Concern Foundation Laboratories at the Lautenberg Center for Immunology and Cancer Research, IMRIC, Faculty of Medicine, Hebrew University–Hadassah Medical School, Jerusalem, Israel
| | - Yuval Dor
- Department of Developmental Biology and Cancer Research, Institute for Medical Research - Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Gideon Zamir
- Department of Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Ittai Ben-Porath
- Department of Developmental Biology and Cancer Research, Institute for Medical Research - Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
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3
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Sagiv A, Bar-Shai A, Levi N, Hatzav M, Zada L, Ovadya Y, Roitman L, Manella G, Regev O, Majewska J, Vadai E, Eilam R, Feigelson SW, Tsoory M, Tauc M, Alon R, Krizhanovsky V. p53 in Bronchial Club Cells Facilitates Chronic Lung Inflammation by Promoting Senescence. Cell Rep 2019; 22:3468-3479. [PMID: 29590616 DOI: 10.1016/j.celrep.2018.03.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 11/28/2017] [Accepted: 02/28/2018] [Indexed: 12/31/2022] Open
Abstract
The tumor suppressor p53 limits tumorigenesis by inducing apoptosis, cell cycle arrest, and senescence. Although p53 is known to limit inflammation during tumor development, its role in regulating chronic lung inflammation is less well understood. To elucidate the function of airway epithelial p53 in such inflammation, we subjected genetically modified mice, whose bronchial epithelial club cells lack p53, to repetitive inhalations of lipopolysaccharide (LPS), an exposure that leads to severe chronic bronchitis and airway senescence in wild-type mice. Surprisingly, the club cell p53 knockout mice exhibited reduced airway senescence and bronchitis in response to chronic LPS exposure and were significantly protected from global lung destruction. Furthermore, pharmacological elimination of senescent cells also protected wild-type mice from chronic LPS-induced bronchitis. Our results implicate p53 in induction of club-cell senescence and correlate epithelial cell senescence of chronic airway inflammation and lung destruction.
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Affiliation(s)
- Adi Sagiv
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Amir Bar-Shai
- Department of Immunology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Naama Levi
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Miki Hatzav
- Department of Immunology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Lior Zada
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Yossi Ovadya
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Lior Roitman
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Gal Manella
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Ofer Regev
- Department of Immunology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Julia Majewska
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Ezra Vadai
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Raya Eilam
- Department of Veterinary Resources, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Sara W Feigelson
- Department of Immunology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Michael Tsoory
- Department of Veterinary Resources, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Michel Tauc
- University of Nice Sophia Antipolis, Nice, France
| | - Ronen Alon
- Department of Immunology, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 7610001 Rehovot, Israel.
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4
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Ovadya Y, Landsberger T, Leins H, Vadai E, Gal H, Biran A, Yosef R, Sagiv A, Agrawal A, Shapira A, Windheim J, Tsoory M, Schirmbeck R, Amit I, Geiger H, Krizhanovsky V. Impaired immune surveillance accelerates accumulation of senescent cells and aging. Nat Commun 2018; 9:5435. [PMID: 30575733 PMCID: PMC6303397 DOI: 10.1038/s41467-018-07825-3] [Citation(s) in RCA: 283] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/26/2018] [Indexed: 02/06/2023] Open
Abstract
Cellular senescence is a stress response that imposes stable cell-cycle arrest in damaged cells, preventing their propagation in tissues. However, senescent cells accumulate in tissues in advanced age, where they might promote tissue degeneration and malignant transformation. The extent of immune-system involvement in regulating age-related accumulation of senescent cells, and its consequences, are unknown. Here we show that Prf1-/- mice with impaired cell cytotoxicity exhibit both higher senescent-cell tissue burden and chronic inflammation. They suffer from multiple age-related disorders and lower survival. Strikingly, pharmacological elimination of senescent-cells by ABT-737 partially alleviates accelerated aging phenotype in these mice. In LMNA+/G609G progeroid mice, impaired cell cytotoxicity further promotes senescent-cell accumulation and shortens lifespan. ABT-737 administration during the second half of life of these progeroid mice abrogates senescence signature and increases median survival. Our findings shed new light on mechanisms governing senescent-cell presence in aging, and could motivate new strategies for regenerative medicine.
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Affiliation(s)
- Yossi Ovadya
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Tomer Landsberger
- Department of Immunology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Hanna Leins
- Institute of Molecular Medicine, Stem Cell and Aging, Ulm University, Ulm, 89081, Germany.,Department of Internal Medicine I, University Hospital of Ulm, Ulm, 89081, Germany
| | - Ezra Vadai
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Hilah Gal
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Anat Biran
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Reut Yosef
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Adi Sagiv
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Amit Agrawal
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Alon Shapira
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Joseph Windheim
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Michael Tsoory
- Department of Veterinary Resources, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Reinhold Schirmbeck
- Department of Internal Medicine I, University Hospital of Ulm, Ulm, 89081, Germany
| | - Ido Amit
- Department of Immunology, The Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Hartmut Geiger
- Institute of Molecular Medicine, Stem Cell and Aging, Ulm University, Ulm, 89081, Germany.,Experimental Hematology and Cancer Biology Cincinnati Children's Hospital Medical Center, 45229, Cincinnati, OH, USA
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100, Rehovot, Israel.
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5
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Abstract
Cellular senescence is a physiological phenomenon that has both beneficial and detrimental consequences. Senescence limits tumorigenesis and tissue damage throughout the lifetime. However, at the late stages of life, senescent cells increasingly accumulate in tissues and might also contribute to the development of various age-related pathologies. Recent studies have revealed the molecular pathways that preserve the viability of senescent cells and the ones regulating their immune surveillance. These studies provide essential initial insights for the development of novel therapeutic strategies for targeting senescent cells. At the same time they stress the need to understand the limitations of the existing strategies, their efficacy and safety, and the possible deleterious consequences of senescent cell elimination. Here we discuss the existing strategies for targeting senescent cells and upcoming challenges in translating these strategies into safe and efficient therapies. Successful translation of these strategies could have implications for treating a variety of diseases at old age and could potentially reshape our view of health management during aging.
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6
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Biran A, Zada L, Abou Karam P, Vadai E, Roitman L, Ovadya Y, Porat Z, Krizhanovsky V. Quantitative identification of senescent cells in aging and disease. Aging Cell 2017; 16:661-671. [PMID: 28455874 PMCID: PMC5506427 DOI: 10.1111/acel.12592] [Citation(s) in RCA: 294] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2017] [Indexed: 11/26/2022] Open
Abstract
Senescent cells are present in premalignant lesions and sites of tissue damage and accumulate in tissues with age. In vivo identification, quantification and characterization of senescent cells are challenging tasks that limit our understanding of the role of senescent cells in diseases and aging. Here, we present a new way to precisely quantify and identify senescent cells in tissues on a single‐cell basis. The method combines a senescence‐associated beta‐galactosidase assay with staining of molecular markers for cellular senescence and of cellular identity. By utilizing technology that combines flow cytometry with high‐content image analysis, we were able to quantify senescent cells in tumors, fibrotic tissues, and tissues of aged mice. Our approach also yielded the finding that senescent cells in tissues of aged mice are larger than nonsenescent cells. Thus, this method provides a basis for quantitative assessment of senescent cells and it offers proof of principle for combination of different markers of senescence. It paves the way for screening of senescent cells for identification of new senescence biomarkers, genes that bypass senescence or senolytic compounds that eliminate senescent cells, thus enabling a deeper understanding of the senescent state in vivo.
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Affiliation(s)
- Anat Biran
- Department of Molecular Cell Biology; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Lior Zada
- Department of Molecular Cell Biology; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Paula Abou Karam
- Department of Molecular Cell Biology; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Ezra Vadai
- Department of Molecular Cell Biology; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Lior Roitman
- Department of Molecular Cell Biology; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Yossi Ovadya
- Department of Molecular Cell Biology; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Ziv Porat
- Flow Cytometry Unit; Biological Services Department; Weizmann Institute of Science; 76100 Rehovot Israel
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology; Weizmann Institute of Science; Rehovot 76100 Israel
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7
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Yosef R, Pilpel N, Papismadov N, Gal H, Ovadya Y, Vadai E, Miller S, Porat Z, Ben-Dor S, Krizhanovsky V. p21 maintains senescent cell viability under persistent DNA damage response by restraining JNK and caspase signaling. EMBO J 2017; 36:2280-2295. [PMID: 28607003 PMCID: PMC5538795 DOI: 10.15252/embj.201695553] [Citation(s) in RCA: 176] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 05/04/2017] [Accepted: 05/08/2017] [Indexed: 12/16/2022] Open
Abstract
Cellular senescence is a permanent state of cell cycle arrest that protects the organism from tumorigenesis and regulates tissue integrity upon damage and during tissue remodeling. However, accumulation of senescent cells in tissues during aging contributes to age‐related pathologies. A deeper understanding of the mechanisms regulating the viability of senescent cells is therefore required. Here, we show that the CDK inhibitor p21 (CDKN1A) maintains the viability of DNA damage‐induced senescent cells. Upon p21 knockdown, senescent cells acquired multiple DNA lesions that activated ataxia telangiectasia mutated (ATM) and nuclear factor (NF)‐κB kinase, leading to decreased cell survival. NF‐κB activation induced TNF‐α secretion and JNK activation to mediate death of senescent cells in a caspase‐ and JNK‐dependent manner. Notably, p21 knockout in mice eliminated liver senescent stellate cells and alleviated liver fibrosis and collagen production. These findings define a novel pathway that regulates senescent cell viability and fibrosis.
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Affiliation(s)
- Reut Yosef
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Noam Pilpel
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Nurit Papismadov
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Hilah Gal
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Yossi Ovadya
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Ezra Vadai
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Stav Miller
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Ziv Porat
- Life Sciences Core Facilities, The Weizmann Institute of Science, Rehovot, Israel
| | - Shifra Ben-Dor
- Life Sciences Core Facilities, The Weizmann Institute of Science, Rehovot, Israel
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
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8
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Affiliation(s)
- Yossi Ovadya
- a Department of Molecular Cell Biology , The Weizmann Institute of Science , Rehovot , Israel
| | - Valery Krizhanovsky
- a Department of Molecular Cell Biology , The Weizmann Institute of Science , Rehovot , Israel
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9
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Yosef R, Pilpel N, Tokarsky-Amiel R, Biran A, Ovadya Y, Cohen S, Vadai E, Dassa L, Shahar E, Condiotti R, Ben-Porath I, Krizhanovsky V. Directed elimination of senescent cells by inhibition of BCL-W and BCL-XL. Nat Commun 2016; 7:11190. [PMID: 27048913 PMCID: PMC4823827 DOI: 10.1038/ncomms11190] [Citation(s) in RCA: 581] [Impact Index Per Article: 72.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 02/26/2016] [Indexed: 01/03/2023] Open
Abstract
Senescent cells, formed in response to physiological and oncogenic stresses, facilitate protection from tumourigenesis and aid in tissue repair. However, accumulation of such cells in tissues contributes to age-related pathologies. Resistance of senescent cells to apoptotic stimuli may contribute to their accumulation, yet the molecular mechanisms allowing their prolonged viability are poorly characterized. Here we show that senescent cells upregulate the anti-apoptotic proteins BCL-W and BCL-XL. Joint inhibition of BCL-W and BCL-XL by siRNAs or the small-molecule ABT-737 specifically induces apoptosis in senescent cells. Notably, treatment of mice with ABT-737 efficiently eliminates senescent cells induced by DNA damage in the lungs as well as senescent cells formed in the epidermis by activation of p53 through transgenic p14(ARF). Elimination of senescent cells from the epidermis leads to an increase in hair-follicle stem cell proliferation. The finding that senescent cells can be eliminated pharmacologically paves the way to new strategies for the treatment of age-related pathologies.
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Affiliation(s)
- Reut Yosef
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Noam Pilpel
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ronit Tokarsky-Amiel
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel
| | - Anat Biran
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Yossi Ovadya
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Snir Cohen
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ezra Vadai
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Liat Dassa
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel
| | - Elisheva Shahar
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel
| | - Reba Condiotti
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel
| | - Ittai Ben-Porath
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
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10
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Shoshani O, Ravid O, Massalha H, Aharonov A, Ovadya Y, Pevsner-Fischer M, Leshkowitz D, Zipori D. Cell isolation induces fate changes of bone marrow mesenchymal cells leading to loss or alternatively to acquisition of new differentiation potentials. Stem Cells 2015; 32:2008-20. [PMID: 24715711 DOI: 10.1002/stem.1719] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/28/2014] [Accepted: 03/20/2014] [Indexed: 12/23/2022]
Abstract
Mesenchymal stromal cell populations include a fraction, termed mesenchymal stem cells, exhibiting multipotency. Other cells within this population possess a lesser differentiation range. This was assumed to be due to a mesenchymal cellular cascade topped by a multipotent cell, which gives rise to progeny with diminishing differentiation potentials. Here, we show that mesenchymal cells, a priori exhibiting a limited differentiation potential, may gain new capacities and become multipotent following single-cell isolation. These fate changes were accompanied by upregulation of differentiation promoting genes, many of which also became H4K20me1 methylated. Early events in the process included TGFβ and Wnt modulation, and downregulation of hypoxia signaling. Indeed, hypoxic conditions inhibited the observed cell changes. Overall, cell isolation from neighboring partners caused major molecular changes and particularly, a newly established epigenetic state, ultimately leading to the acquisition of new differentiation potentials and an altered cell fate.
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Affiliation(s)
- Ofer Shoshani
- Department of Molecular Cell Biology, Israel National Center for Personalized Medicine, Weizmann Institute of Science, Rehovot, Israel
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11
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Biran A, Perelmutter M, Gal H, Burton DGA, Ovadya Y, Vadai E, Geiger T, Krizhanovsky V. Senescent cells communicate via intercellular protein transfer. Genes Dev 2015; 29:791-802. [PMID: 25854920 PMCID: PMC4403256 DOI: 10.1101/gad.259341.115] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/19/2015] [Indexed: 01/07/2023]
Abstract
Biran et al. show that senescent cells directly transfer proteins to neighboring cells and that this process facilitates immune surveillance of senescent cells by NK cells. The transfer is strictly dependent on cell–cell contact and CDC42-regulated actin polymerization and is mediated at least partially by cytoplasmic bridges. These findings reveal a novel mode of intercellular communication by which senescent cells regulate their immune surveillance and might impact tumorigenesis and tissue aging. Mammalian cells mostly rely on extracellular molecules to transfer signals to other cells. However, in stress conditions, more robust mechanisms might be necessary to facilitate cell–cell communications. Cellular senescence, a stress response associated with permanent exit from the cell cycle and the development of an immunogenic phenotype, limits both tumorigenesis and tissue damage. Paradoxically, the long-term presence of senescent cells can promote tissue damage and aging within their microenvironment. Soluble factors secreted from senescent cells mediate some of these cell-nonautonomous effects. However, it is unknown whether senescent cells impact neighboring cells by other mechanisms. Here we show that senescent cells directly transfer proteins to neighboring cells and that this process facilitates immune surveillance of senescent cells by natural killer (NK) cells. We found that transfer of proteins to NK and T cells is increased in the murine preneoplastic pancreas, a site where senescent cells are present in vivo. Proteomic analysis and functional studies of the transferred proteins revealed that the transfer is strictly dependent on cell–cell contact and CDC42-regulated actin polymerization and is mediated at least partially by cytoplasmic bridges. These findings reveal a novel mode of intercellular communication by which senescent cells regulate their immune surveillance and might impact tumorigenesis and tissue aging.
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Affiliation(s)
- Anat Biran
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Meirav Perelmutter
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Hilah Gal
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Dominick G A Burton
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Yossi Ovadya
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ezra Vadai
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Tamar Geiger
- Sackler School of Medicine, Tel Aviv University, Tel-Aviv 69978, Israel
| | - Valery Krizhanovsky
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel;
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Biran A, Perelmutter M, Burton D, Ovadya Y, Geiger T, Krizhanovsky V. 20: Proffered Paper: Senescent cells impact premalignant microenvironment by direct protein transfer. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50020-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lapid K, Itkin T, D’Uva G, Ovadya Y, Ludin A, Caglio G, Kalinkovich A, Golan K, Porat Z, Zollo M, Lapidot T. GSK3β regulates physiological migration of stem/progenitor cells via cytoskeletal rearrangement. J Clin Invest 2013. [DOI: 10.1172/jci70656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Lapid K, Itkin T, D'Uva G, Ovadya Y, Ludin A, Caglio G, Kalinkovich A, Golan K, Porat Z, Zollo M, Lapidot T. GSK3β regulates physiological migration of stem/progenitor cells via cytoskeletal rearrangement. J Clin Invest 2013; 123:1705-17. [PMID: 23478410 DOI: 10.1172/jci64149] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Accepted: 01/14/2013] [Indexed: 02/06/2023] Open
Abstract
Regulation of hematopoietic stem and progenitor cell (HSPC) steady-state egress from the bone marrow (BM) to the circulation is poorly understood. While glycogen synthase kinase-3β (GSK3β) is known to participate in HSPC proliferation, we revealed an unexpected role in the preferential regulation of CXCL12-induced migration and steady-state egress of murine HSPCs, including long-term repopulating HSCs, over mature leukocytes. HSPC egress, regulated by circadian rhythms of CXCL12 and CXCR4 levels, correlated with dynamic expression of GSK3β in the BM. Nevertheless, GSK3β signaling was CXCL12/CXCR4 independent, suggesting that synchronization of both pathways is required for HSPC motility. Chemotaxis of HSPCs expressing higher levels of GSK3β compared with mature cells was selectively enhanced by stem cell factor-induced activation of GSK3β. Moreover, HSPC motility was regulated by norepinephrine and insulin-like growth factor-1 (IGF-1), which increased or reduced, respectively, GSK3β expression in BM HSPCs and their subsequent egress. Mechanistically, GSK3β signaling promoted preferential HSPC migration by regulating actin rearrangement and microtubuli turnover, including CXCL12-induced actin polarization and polymerization. Our study identifies a previously unknown role for GSK3β in physiological HSPC motility, dictating an active, rather than a passive, nature for homeostatic egress from the BM reservoir to the blood circulation.
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Affiliation(s)
- Kfir Lapid
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
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