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Sharrow AC, Megill E, Chen AJ, Farooqi A, McGonigal S, Hempel N, Snyder NW, Buckanovich RJ, Aird KM. Acetate drives ovarian cancer quiescence via ACSS2-mediated acetyl-CoA production. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.12.603313. [PMID: 39026889 PMCID: PMC11257583 DOI: 10.1101/2024.07.12.603313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Quiescence is a reversible cell cycle exit traditionally thought to be associated with a metabolically inactive state. Recent work in muscle cells indicates that metabolic reprogramming is associated with quiescence. Whether metabolic changes occur in cancer to drive quiescence is unclear. Using a multi-omics approach, we found that the metabolic enzyme ACSS2, which converts acetate into acetyl-CoA, is both highly upregulated in quiescent ovarian cancer cells and required for their survival. Indeed, quiescent ovarian cancer cells have increased levels of acetate-derived acetyl-CoA, confirming increased ACSS2 activity in these cells. Furthermore, either inducing ACSS2 expression or supplementing cells with acetate was sufficient to induce a reversible quiescent cell cycle exit. RNA-Seq of acetate treated cells confirmed negative enrichment in multiple cell cycle pathways as well as enrichment of genes in a published G0 gene signature. Finally, analysis of patient data showed that ACSS2 expression is upregulated in tumor cells from ascites, which are thought to be more quiescent, compared to matched primary tumors. Additionally, high ACSS2 expression is associated with platinum resistance and worse outcomes. Together, this study points to a previously unrecognized ACSS2-mediated metabolic reprogramming that drives quiescence in ovarian cancer. As chemotherapies to treat ovarian cancer, such as platinum, have increased efficacy in highly proliferative cells, our data give rise to the intriguing question that metabolically-driven quiescence may affect therapeutic response.
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Affiliation(s)
- Allison C. Sharrow
- Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Magee-Womens Research Institute, Pittsburgh, PA
| | - Emily Megill
- Center for Metabolic Disease Research, Department of Cardiovascular Sciences, Temple University, Philadelphia, PA
| | - Amanda J. Chen
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Afifa Farooqi
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | | | - Nadine Hempel
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Division of Hematology/Oncology, Department of Medicine University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Nathaniel W. Snyder
- Center for Metabolic Disease Research, Department of Cardiovascular Sciences, Temple University, Philadelphia, PA
| | - Ronald J. Buckanovich
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Magee-Womens Research Institute, Pittsburgh, PA
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Katherine M. Aird
- Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA
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2
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Badlaeva A, Tregubova A, Palicelli A, Asaturova A. Eosinophilic Cells in Ovarian Borderline Serous Tumors as a Predictor of BRAF Mutation. Cancers (Basel) 2024; 16:2322. [PMID: 39001384 PMCID: PMC11240704 DOI: 10.3390/cancers16132322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/10/2024] [Accepted: 06/18/2024] [Indexed: 07/16/2024] Open
Abstract
According to recent reports, ovarian serous borderline tumor (SBT) harboring the BRAF V600E mutation is associated with a lower risk of progression to low-grade serous carcinoma. Preliminary observations suggest that there may be an association between eosinophilic cells (ECs) and the above-mentioned mutation, so this study aimed to evaluate interobserver reproducibility for assessing ECs. Forty-two samples of SBTs were analyzed for ECs with abundant eosinophilic cytoplasm. Immunohistochemical staining and genetic pro-filing were performed in all cases to verify the BRAF V600E mutation. A BRAF V600E mutation was found in 19 of 42 (45%) cases. Inter-observer reproducibility in the assessment of ECs was substantial (κ = 0.7). The sensitivity and specificity for predicting the mutation were 79% and 91%, respectively. Patients with BRAF-mutated SBTs were significantly younger than those without mutation (p = 0.005). SBTs with BRAF mutation were less likely to be accompanied by non-invasive implants than wild-type SBT: 12% (2/17) versus 33% (6/18). Seven cases were excluded due to incomplete cytoreductive surgery. Nevertheless, Fisher's exact test showed no significant differences between the two groups (p = 0.228). Overall, this study strengthens the idea that ECs in ovarian SBTs may represent a mutation with prognostic significance, which can serve as a primary screening test for BRAF V600E mutation in this pathologic entity.
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Affiliation(s)
- Alina Badlaeva
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov of the Ministry of Health of Russia, Bldg. 4, Oparina Street, 117513 Moscow, Russia; (A.B.); (A.T.)
| | - Anna Tregubova
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov of the Ministry of Health of Russia, Bldg. 4, Oparina Street, 117513 Moscow, Russia; (A.B.); (A.T.)
| | - Andrea Palicelli
- Pathology Unit, Azienda Unità Sanitaria Locale—IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy;
| | - Aleksandra Asaturova
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov of the Ministry of Health of Russia, Bldg. 4, Oparina Street, 117513 Moscow, Russia; (A.B.); (A.T.)
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3
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Tsesmelis M, Büttner UFG, Gerstenlauer M, Manfras U, Tsesmelis K, Du Z, Sperb N, Weissinger SE, Möller P, Barth TFE, Maier HJ, Chan LK, Wirth T. NEMO/NF-κB signaling functions as a double-edged sword in PanIN formation versus progression to pancreatic cancer. Mol Cancer 2024; 23:103. [PMID: 38755681 PMCID: PMC11097402 DOI: 10.1186/s12943-024-01989-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/31/2024] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is marked by a dismal survival rate, lacking effective therapeutics due to its aggressive growth, late-stage diagnosis, and chemotherapy resistance. Despite debates on NF-κB targeting for PDAC treatment, no successful approach has emerged. METHODS To elucidate the role of NF-κB, we ablated NF-κB essential modulator (NEMO), critical for conventional NF-κB signaling, in the pancreata of mice that develop precancerous lesions (KC mouse model). Secretagogue-induced pancreatitis by cerulein injections was utilized to promote inflammation and accelerate PDAC development. RESULTS NEMO deletion reduced fibrosis and inflammation in young KC mice, resulting in fewer pancreatic intraepithelial neoplasias (PanINs) at later stages. Paradoxically, however, NEMO deletion accelerated the progression of these fewer PanINs to PDAC and reduced median lifespan. Further, analysis of tissue microarrays from human PDAC sections highlighted the correlation between reduced NEMO expression in neoplastic cells and poorer prognosis, supporting our observation in mice. Mechanistically, NEMO deletion impeded oncogene-induced senescence (OIS), which is normally active in low-grade PanINs. This blockage resulted in fewer senescence-associated secretory phenotype (SASP) factors, reducing inflammation. However, blocked OIS fostered replication stress and DNA damage accumulation which accelerated PanIN progression to PDAC. Finally, treatment with the DNA damage-inducing reagent etoposide resulted in elevated cell death in NEMO-ablated PDAC cells compared to their NEMO-competent counterparts, indicative of a synthetic lethality paradigm. CONCLUSIONS NEMO exhibited both oncogenic and tumor-suppressive properties during PDAC development. Caution is suggested in therapeutic interventions targeting NF-κB, which may be detrimental during PanIN progression but beneficial post-PDAC development.
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Affiliation(s)
- Miltiadis Tsesmelis
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
| | - Ulrike F G Büttner
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
| | - Melanie Gerstenlauer
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
| | - Uta Manfras
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
| | - Konstantinos Tsesmelis
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
| | - Ziwei Du
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
| | - Nadine Sperb
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
| | | | - Peter Möller
- Institute of Pathology, University of Ulm, 89081, Ulm, Baden-Württemberg, Germany
| | - Thomas F E Barth
- Institute of Pathology, University of Ulm, 89081, Ulm, Baden-Württemberg, Germany
| | - Harald J Maier
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany
- Novartis Pharma, 4056, Basel, AG, Switzerland
| | - Lap Kwan Chan
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany.
- Department of Pathology and Molecular Pathology, University Hospital of Zurich, 8091, Zurich, Switzerland.
- Institute of Molecular Cancer Research, University of Zurich, 8057, Zurich, Switzerland.
| | - Thomas Wirth
- Institute of Physiological Chemistry, University of Ulm, Meyerhofstrasse, 89081, Ulm, Baden-Württemberg, Germany.
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Giuliani A, Giudetti AM, Vergara D, Del Coco L, Ramini D, Caccese S, Sbriscia M, Graciotti L, Fulgenzi G, Tiano L, Fanizzi FP, Olivieri F, Rippo MR, Sabbatinelli J. Senescent Endothelial Cells Sustain Their Senescence-Associated Secretory Phenotype (SASP) through Enhanced Fatty Acid Oxidation. Antioxidants (Basel) 2023; 12:1956. [PMID: 38001810 PMCID: PMC10668971 DOI: 10.3390/antiox12111956] [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: 09/22/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Cellular senescence is closely linked to endothelial dysfunction, a key factor in age-related vascular diseases. Senescent endothelial cells exhibit a proinflammatory phenotype known as SASP, leading to chronic inflammation (inflammaging) and vascular impairments. Albeit in a state of permanent growth arrest, senescent cells paradoxically display a high metabolic activity. The relationship between metabolism and inflammation is complex and varies across cell types and senescence inductions. While some cell types shift towards glycolysis during senescence, others favor oxidative phosphorylation (OXPHOS). Despite the high availability of oxygen, quiescent endothelial cells (ECs) tend to rely on glycolysis for their bioenergetic needs. However, there are limited data on the metabolic behavior of senescent ECs. Here, we characterized the metabolic profiles of young and senescent human umbilical vein endothelial cells (HUVECs) to establish a possible link between the metabolic status and the proinflammatory phenotype of senescent ECs. Senescent ECs internalize a smaller amount of glucose, have a lower glycolytic rate, and produce/release less lactate than younger cells. On the other hand, an increased fatty acid oxidation activity was observed in senescent HUVECs, together with a greater intracellular content of ATP. Interestingly, blockade of glycolysis with 2-deoxy-D-glucose in young cells resulted in enhanced production of proinflammatory cytokines, while the inhibition of carnitine palmitoyltransferase 1 (CPT1), a key rate-limiting enzyme of fatty acid oxidation, ameliorated the SASP in senescent ECs. In summary, metabolic changes in senescent ECs are complex, and this research seeks to uncover potential strategies for modulating these metabolic pathways to influence the SASP.
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Affiliation(s)
- Angelica Giuliani
- Cardiac Rehabilitation Unit of Bari Institute, Istituti Clinici Scientifici Maugeri IRCCS, 70124 Bari, Italy
| | - Anna Maria Giudetti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (A.M.G.); (D.V.); (L.D.C.); (F.P.F.)
| | - Daniele Vergara
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (A.M.G.); (D.V.); (L.D.C.); (F.P.F.)
| | - Laura Del Coco
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (A.M.G.); (D.V.); (L.D.C.); (F.P.F.)
| | - Deborah Ramini
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, 60121 Ancona, Italy; (D.R.); (M.S.); (F.O.)
| | - Sara Caccese
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (S.C.); (G.F.); (M.R.R.); (J.S.)
| | - Matilde Sbriscia
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, 60121 Ancona, Italy; (D.R.); (M.S.); (F.O.)
| | - Laura Graciotti
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, 60126 Ancona, Italy;
| | - Gianluca Fulgenzi
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (S.C.); (G.F.); (M.R.R.); (J.S.)
| | - Luca Tiano
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy;
| | - Francesco Paolo Fanizzi
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (A.M.G.); (D.V.); (L.D.C.); (F.P.F.)
| | - Fabiola Olivieri
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, 60121 Ancona, Italy; (D.R.); (M.S.); (F.O.)
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (S.C.); (G.F.); (M.R.R.); (J.S.)
| | - Maria Rita Rippo
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (S.C.); (G.F.); (M.R.R.); (J.S.)
| | - Jacopo Sabbatinelli
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (S.C.); (G.F.); (M.R.R.); (J.S.)
- Laboratory Medicine Unit, Azienda Ospedaliero Universitaria delle Marche, 60126 Ancona, Italy
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5
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Le NT. Metabolic regulation of endothelial senescence. Front Cardiovasc Med 2023; 10:1232681. [PMID: 37649668 PMCID: PMC10464912 DOI: 10.3389/fcvm.2023.1232681] [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: 05/31/2023] [Accepted: 07/18/2023] [Indexed: 09/01/2023] Open
Abstract
Endothelial cell (EC) senescence is increasingly recognized as a significant contributor to the development of vascular dysfunction and age-related disorders and diseases, including cancer and cardiovascular diseases (CVD). The regulation of cellular senescence is known to be influenced by cellular metabolism. While extensive research has been conducted on the metabolic regulation of senescence in other cells such as cancer cells and fibroblasts, our understanding of the metabolic regulation of EC senescence remains limited. The specific metabolic changes that drive EC senescence are yet to be fully elucidated. The objective of this review is to provide an overview of the intricate interplay between cellular metabolism and senescence, with a particular emphasis on recent advancements in understanding the metabolic changes preceding cellular senescence. I will summarize the current knowledge on the metabolic regulation of EC senescence, aiming to offer insights into the underlying mechanisms and future research directions.
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Affiliation(s)
- Nhat-Tu Le
- Center for Cardiovascular Regeneration, Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, United States
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6
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Zhang J, Liang N, Cao Y, Li M. Differentially Expressed Circular RNAs and Their Therapeutic Mechanism in Non-segmental Vitiligo Patients Treated With Methylprednisolone. Front Med (Lausanne) 2022; 9:839066. [PMID: 35652072 PMCID: PMC9149005 DOI: 10.3389/fmed.2022.839066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 03/30/2022] [Indexed: 01/31/2023] Open
Abstract
Vitiligo is characterized by chronic skin depigmentation arising from the autoimmune destruction of epidermal melanocytes. Systemic corticosteroid therapy is an effective immunosuppressive treatment for progressive generalized vitiligo. Circular RNAs (circRNAs) play various roles in diseases. In systemic corticosteroid therapy, however, how circRNAs function to counter vitiligo is still unclear. In this article, we identified the differentially expressed circRNAs (DEcircRNAs) in vitiligo patients before and after the administration of methylprednisolone. Total RNA was extracted from the peripheral blood of patients with vitiligo, and samples were hybridized into a circRNA array. A total of 375 (51 upregulated and 324 downregulated) circRNAs were differentially expressed. Box, scatter, volcano, and heatmap plots were generated to classify the samples. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were performed on DEcircRNAs. These DEcircRNAs were enriched in vitiligo-related biological processes, such as ferroptosis, organic substance transport, protein metabolic process, and cellular component organization or biogenesis. Two different databases, TargetScan and miRanda, were used to predict circRNA/miRNA interactions. Several circRNA/miRNA interactions were involved in ferroptosis. These circRNAs might serve as therapeutic targets in the treatment of vitiligo.
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Affiliation(s)
- Jiaqi Zhang
- Department of Dermatology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Ning Liang
- Department of Dermatology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Yan Cao
- Department of Dermatology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
- *Correspondence: Yan Cao,
| | - Min Li
- Department of Dermatology, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Min Li,
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7
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Li F, Huang C, Qiu L, Li P, Shi J, Zhang G. Comprehensive Analysis of Immune-Related Metabolic Genes in Lung Adenocarcinoma. Front Endocrinol (Lausanne) 2022; 13:894754. [PMID: 35898471 PMCID: PMC9309246 DOI: 10.3389/fendo.2022.894754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Abstract
PURPOSE The immunotherapy of lung adenocarcinoma (LUAD) has received much attention in recent years and metabolic reprogramming is linked to immune infiltration in the tumor microenvironment. Therefore, it is indispensable to dissect the role of immune-related metabolic genes in lung adenocarcinoma. METHODS In this study, we screened immune-related genes by Pearson correlation. The function of these genes was explored by gene ontology (GO) and KEGG (Kyoto Encyclopedia of Genes and Genomes) enrichment analysis. The differently expressed immune-related genes were analyzed by Limma. Furthermore, the LUAD patients were clustered based on immune-related genes through consensus clustering. The Unicox was used to identify survival-immune-related metabolic genes. The Least Absolute Shrinkage and Selection Operator (LASSO) regression analysis was used to optimize the gene sets. A prediction model was constructed and tested. The potential therapeutic target was selected based on two criteria, these immune-related metabolic genes that were highly expressed in tumor tissues and negatively correlated with the survival of patients in LUAD. Quantitative real-time PCR (qRT-PCR) was used for in vitro experimental validations. RESULTS We identified 346 immune-related genes, mainly involved in arachidonic acid metabolism and peroxisome proliferator-activated receptor (PPAR) signaling. Moreover, a total of 141 immune-related genes were dysregulated between tumor and normal tissues. We clustered three subtypes of LUAD based on immune-related metabolic genes and these subtypes exhibited different survival and immune status. We found Ribonucleotide Reductase Regulatory Subunit M2 (RRM2) as a potential therapeutic target, which is positively correlated with the cyclin-dependent kinase family of genes. CONCLUSION We comprehensively analyzed the immune-related metabolic genes in LUAD. RRM2 was determined as a promising metabolic checkpoint for lung adenocarcinoma.
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8
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Roger L, Tomas F, Gire V. Mechanisms and Regulation of Cellular Senescence. Int J Mol Sci 2021; 22:ijms222313173. [PMID: 34884978 PMCID: PMC8658264 DOI: 10.3390/ijms222313173] [Citation(s) in RCA: 128] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 12/23/2022] Open
Abstract
Cellular senescence entails a state of an essentially irreversible proliferative arrest in which cells remain metabolically active and secrete a range of pro-inflammatory and proteolytic factors as part of the senescence-associated secretory phenotype. There are different types of senescent cells, and senescence can be induced in response to many DNA damage signals. Senescent cells accumulate in different tissues and organs where they have distinct physiological and pathological functions. Despite this diversity, all senescent cells must be able to survive in a nondividing state while protecting themselves from positive feedback loops linked to the constant activation of the DNA damage response. This capacity requires changes in core cellular programs. Understanding how different cell types can undergo extensive changes in their transcriptional programs, metabolism, heterochromatin patterns, and cellular structures to induce a common cellular state is crucial to preventing cancer development/progression and to improving health during aging. In this review, we discuss how senescent cells continuously evolve after their initial proliferative arrest and highlight the unifying features that define the senescent state.
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Affiliation(s)
- Lauréline Roger
- Structure and Instability of Genomes Laboratory, Muséum National d’Histoire Naturelle (MNHN), CNRS-UMR 7196/INSERM U1154, 43 Rue Cuvier, 75005 Paris, France;
| | - Fanny Tomas
- Centre de Recherche en Biologie cellulaire de Montpellier (CRBM), Université de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293 Montpellier, France;
| | - Véronique Gire
- Centre de Recherche en Biologie cellulaire de Montpellier (CRBM), Université de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293 Montpellier, France;
- Correspondence: ; Tel.: +33-(0)-434359513; Fax: +33-(0)-434359410
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9
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Rozenberg JM, Zvereva S, Dalina A, Blatov I, Zubarev I, Luppov D, Bessmertnyi A, Romanishin A, Alsoulaiman L, Kumeiko V, Kagansky A, Melino G, Ganini C, Barlev NA. The p53 family member p73 in the regulation of cell stress response. Biol Direct 2021; 16:23. [PMID: 34749806 PMCID: PMC8577020 DOI: 10.1186/s13062-021-00307-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/12/2021] [Indexed: 12/14/2022] Open
Abstract
During oncogenesis, cells become unrestrictedly proliferative thereby altering the tissue homeostasis and resulting in subsequent hyperplasia. This process is paralleled by resumption of cell cycle, aberrant DNA repair and blunting the apoptotic program in response to DNA damage. In most human cancers these processes are associated with malfunctioning of tumor suppressor p53. Intriguingly, in some cases two other members of the p53 family of proteins, transcription factors p63 and p73, can compensate for loss of p53. Although both p63 and p73 can bind the same DNA sequences as p53 and their transcriptionally active isoforms are able to regulate the expression of p53-dependent genes, the strongest overlap with p53 functions was detected for p73. Surprisingly, unlike p53, the p73 is rarely lost or mutated in cancers. On the contrary, its inactive isoforms are often overexpressed in cancer. In this review, we discuss several lines of evidence that cancer cells develop various mechanisms to repress p73-mediated cell death. Moreover, p73 isoforms may promote cancer growth by enhancing an anti-oxidative response, the Warburg effect and by repressing senescence. Thus, we speculate that the role of p73 in tumorigenesis can be ambivalent and hence, requires new therapeutic strategies that would specifically repress the oncogenic functions of p73, while keeping its tumor suppressive properties intact.
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Affiliation(s)
- Julian M Rozenberg
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia.
| | - Svetlana Zvereva
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Aleksandra Dalina
- The Engelhardt Institute of Molecular Biology, Russian Academy of Science, Moscow, Russia
| | - Igor Blatov
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Ilya Zubarev
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Daniil Luppov
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | | | - Alexander Romanishin
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia.,School of Life Sciences, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Lamak Alsoulaiman
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Vadim Kumeiko
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Alexander Kagansky
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia.,School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Gerry Melino
- Department of Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Carlo Ganini
- Department of Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Nikolai A Barlev
- Cell Signaling Regulation Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia. .,Institute of Cytology, Russian Academy of Science, Saint-Petersburg, Russia.
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10
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Chen M, Zhou S, Shi H, Gu H, Wen Y, Chen L. Identification and validation of pivotal genes related to age-related meniscus degeneration based on gene expression profiling analysis and in vivo and in vitro models detection. BMC Med Genomics 2021; 14:237. [PMID: 34587952 PMCID: PMC8482591 DOI: 10.1186/s12920-021-01088-6] [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: 06/08/2021] [Accepted: 09/20/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The componential and structural change in the meniscus with aging would increase the tissue vulnerability of the meniscus, which would induce meniscus tearing. Here, we investigated the molecular mechanism of age-related meniscus degeneration with gene expression profiling analysis, and validate pivotal genes in vivo and in vitro models. METHODS The GSE45233 dataset, including 6 elderly meniscus samples and 6 younger meniscus samples, was downloaded from the Gene Expression Omnibus (GEO) database. To screen the differential expression of mRNAs and identify the miRNAs targeting hub genes, we completed a series of bioinformatics analyses, including functional and pathway enrichment, protein-protein interaction network, hub genes screening, and construction of a lncRNA-miRNA-mRNA network. Furthermore, crucial genes were examined in human senescent menisci, mouse senescent meniscus tissues and mouse meniscus cells stimulated by IL-1β. RESULTS In total, the most significant 4 hub genes (RRM2, AURKB, CDK1, and TIMP1) and 5 miRNAs (hsa-miR-6810-5p, hsa-miR-4676-5p, hsa-miR-6877-5p, hsa-miR-8085, and hsa-miR-6133) that regulated such 4 hub genes, were finally identified. Moreover, these hub genes were decreased in meniscus cells in vitro and meniscus tissues in vivo, which indicated that hub genes were related to meniscus senescence and could serve as potential biomarkers for age-related meniscus tearing. CONCLUSIONS In short, the integrated analysis of gene expression profile, co-expression network, and models detection identified pivotal genes, which elucidated the possible molecular basis underlying the senescence meniscus and also provided prognosis clues for early-onset age-related meniscus tearing.
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Affiliation(s)
- Ming Chen
- Division of Joint Surgery and Sports Medicine, Department of Orthopedics Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Siqi Zhou
- Division of Joint Surgery and Sports Medicine, Department of Orthopedics Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.,Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Huasong Shi
- Division of Joint Surgery and Sports Medicine, Department of Orthopedics Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Hanwen Gu
- Division of Joint Surgery and Sports Medicine, Department of Orthopedics Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Yinxian Wen
- Division of Joint Surgery and Sports Medicine, Department of Orthopedics Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China. .,Joint Disease Research Center, Wuhan University, Wuhan, 430071, China.
| | - Liaobin Chen
- Division of Joint Surgery and Sports Medicine, Department of Orthopedics Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China. .,Joint Disease Research Center, Wuhan University, Wuhan, 430071, China.
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11
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Sun H, Sun Y, Yu X, Gao X, Wang H, Zhang L, Shi Y, He X. Analysis of Age-Related Circular RNA Expression Profiles in Mesenchymal Stem Cells of Rat Bone Marrow. Front Genet 2021; 12:600632. [PMID: 34262589 PMCID: PMC8273880 DOI: 10.3389/fgene.2021.600632] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 05/21/2021] [Indexed: 01/09/2023] Open
Abstract
As multicellular organisms age, they undergo a reduction in tissue and organ function. Researchers have put forward a theory that stem cell aging is the main factor responsible for decreased tissue and organ function. The adult stem cells guarantee the maintenance and repair of adult tissues and organs. Among adult stem cells, mesenchymal stem cells (MSCs) are emerging as hopeful candidates for cell-based therapy of numerous diseases. In recent years, high-throughput sequencing technologies have evolved to identify circular RNAs (circRNAs) associated with an increasing number of diseases, such as cancer and age-related diseases. It has been reported that circRNAs can compete with microRNAs (miRNAs) to affect the stability or translation of target RNAs and further regulate gene expression at the transcriptional level. However, the role of circRNAs expressed in MSCs in aging mechanisms has not yet been deciphered. The aim of this study was to explore and analyze the expression profiles of age-related circRNAs in MSCs. In this study, bone marrow MSCs were extracted from aged and young rats and analyzed using high-throughput sequencing and bioinformatics. The reliability of high-throughput RNA sequencing was verified by quantitative real-time polymerase chain reaction. The most important circRNA functions and pathways were further selected by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomics (KEGG) analysis. Age-related circRNAs were found in the circrNA-miRNA-mRNA interaction network. The results of high-throughput sequencing showed that 4,229 circRNAs were involved in age-related senescence of MSCs. Compared with the young group, there were 29 differentially expressed circRNAs in the aged group, of which four were upregulated and 25 were downregulated. GO analysis covered three domains: biological process (BP), cellular component (CC), and molecular function (MF). The terms assigned to the BP domain were cellular metabolic processes and cellular macromolecule metabolic processes. The identified CC terms were intracellular and intracellular part, and the identified MF terms were binding and protein binding. The top five KEGG pathways were mitophagy-animal-Rattus norvegicus, prostate cancer-Rattus norvegicus, pathways in cancer-Rattus norvegicus, lysosome-Rattus norvegicus, and autophagy-animal-Rattus norvegicus. Altogether, circRNAs may play a major role in age-related MSC senescence. This study provides new mechanistic insights into MSC senescence, possibly leading to novel therapeutic strategies for age-related diseases.
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Affiliation(s)
- Hui Sun
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yanan Sun
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xiao Yu
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xingyu Gao
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Huan Wang
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Lin Zhang
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yingai Shi
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xu He
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
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12
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Radiation-Induced Senescence Reprograms Secretory and Metabolic Pathways in Colon Cancer HCT-116 Cells. Int J Mol Sci 2021; 22:ijms22094835. [PMID: 34063570 PMCID: PMC8124941 DOI: 10.3390/ijms22094835] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 01/10/2023] Open
Abstract
Understanding the global metabolic changes during the senescence of tumor cells can have implications for developing effective anti-cancer treatment strategies. Ionizing radiation (IR) was used to induce senescence in a human colon cancer cell line HCT-116 to examine secretome and metabolome profiles. Control proliferating and senescent cancer cells (SCC) exhibited distinct morphological differences and expression of senescent markers. Enhanced secretion of pro-inflammatory chemokines and IL-1, anti-inflammatory IL-27, and TGF-β1 was observed in SCC. Significantly reduced levels of VEGF-A indicated anti-angiogenic activities of SCC. Elevated levels of tissue inhibitors of matrix metalloproteinases from SCC support the maintenance of the extracellular matrix. Adenylate and guanylate energy charge levels and redox components NAD and NADP and glutathione were maintained at near optimal levels indicating the viability of SCC. Significant accumulation of pyruvate, lactate, and suppression of the TCA cycle in SCC indicated aerobic glycolysis as the predominant energy source for SCC. Levels of several key amino acids decreased significantly, suggesting augmented utilization for protein synthesis and for use as intermediates for energy metabolism in SCC. These observations may provide a better understanding of cellular senescence basic mechanisms in tumor tissues and provide opportunities to improve cancer treatment.
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13
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Garnett S, de Bruyns A, Provencher-Tom V, Dutchak K, Shu R, Dankort D. Metabolic Regulator IAPP (Amylin) Is Required for BRAF and RAS Oncogene-Induced Senescence. Mol Cancer Res 2021; 19:874-885. [PMID: 33500359 DOI: 10.1158/1541-7786.mcr-20-0879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/17/2020] [Accepted: 01/21/2021] [Indexed: 11/16/2022]
Abstract
Cellular senescence is characterized by a prolonged and predominantly irreversible cell-cycle arrest state, which is linked to loss of tissue function and aging in mammals. Moreover, in response to aberrant oncogenic signals such as those from oncogenic RAS or BRAF, senescence functions as an intrinsic tumor suppressor mechanism restraining tumor progression. In addition to this durable proliferative block, senescent cells adopt altered morphologies, transcriptional profiles, and metabolism, while often possessing unusual heterochromatin formation termed senescence-associated heterochromatic foci. To uncover genes that are required to permit proliferation in the face of sustained oncogene signaling, we conducted an shRNA-based genetic screen in primary cells expressing inducible BRAF. Here we show that depletion of a known glycolysis regulator, islet amylin polypeptide (IAPP also known as amylin), prevents RAS and BRAF oncogene-induced senescence (OIS) in human cells. Importantly, depletion of IAPP resulted in changes of the cells' metabolome and this metabolic reprogramming was associated with widespread alterations in chromatin modifications compared with senescent cells. Conversely, exogenous treatment of IAPP-depleted cells with amylin restored OIS. Together, our results demonstrate that the metabolic regulator IAPP is important regulator of OIS. Moreover, they suggest that IAPP analog treatment or activation of IAPP signaling in RAS/BRAF mutant tumors may have therapeutic potential through senescence induction. IMPLICATIONS: These findings demonstrate that IAPP is a novel metabolic regulator of oncogene-induced senescence and use of IAPP analogs may be therapeutically effective to restore growth arrest to BRAF and/or RAS mutant cancers.
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Affiliation(s)
- Sam Garnett
- Department of Biology, McGill University, Montréal QC, Canada
| | | | | | - Kendall Dutchak
- Department of Biology, McGill University, Montréal QC, Canada
| | - Ran Shu
- Department of Biology, McGill University, Montréal QC, Canada
| | - David Dankort
- Department of Biology, McGill University, Montréal QC, Canada. .,Goodman Cancer Research Centre, Montréal QC, Canada
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14
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Buj R, Chen CW, Dahl ES, Leon KE, Kuskovsky R, Maglakelidze N, Navaratnarajah M, Zhang G, Doan MT, Jiang H, Zaleski M, Kutzler L, Lacko H, Lu Y, Mills GB, Gowda R, Robertson GP, Warrick JI, Herlyn M, Imamura Y, Kimball SR, DeGraff DJ, Snyder NW, Aird KM. Suppression of p16 Induces mTORC1-Mediated Nucleotide Metabolic Reprogramming. Cell Rep 2020; 28:1971-1980.e8. [PMID: 31433975 PMCID: PMC6716532 DOI: 10.1016/j.celrep.2019.07.084] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 07/01/2019] [Accepted: 07/23/2019] [Indexed: 02/07/2023] Open
Abstract
Reprogrammed metabolism and cell cycle dysregulation are two cancer hallmarks. p16 is a cell cycle inhibitor and tumor suppressor that is upregulated during oncogene-induced senescence (OIS). Loss of p16 allows for uninhibited cell cycle progression, bypass of OIS, and tumorigenesis. Whether p16 loss affects pro-tumorigenic metabolism is unclear. We report that suppression of p16 plays a central role in reprogramming metabolism by increasing nucleotide synthesis. This occurs by activation of mTORC1 signaling, which directly mediates increased translation of the mRNA encoding ribose-5-phosphate isomerase A (RPIA), a pentose phosphate pathway enzyme. p16 loss correlates with activation of the mTORC1-RPIA axis in multiple cancer types. Suppression of RPIA inhibits proliferation only in p16-low cells by inducing senescence both in vitro and in vivo. These data reveal the molecular basis whereby p16 loss modulates pro-tumorigenic metabolism through mTORC1-mediated upregulation of nucleotide synthesis and reveals a metabolic vulnerability of p16-null cancer cells. Senescence bypass through p16 loss predisposes to transformation and tumorigenesis. Buj et al. found that the loss of p16 upregulates nucleotide metabolism through increased mTORC1-mediated translation of RPIA to bypass senescence in an RB-independent manner. Thus, the mTORC1-RPIA axis is a metabolic vulnerability for p16-null cancers.
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Affiliation(s)
- Raquel Buj
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Chi-Wei Chen
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Erika S Dahl
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Kelly E Leon
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Rostislav Kuskovsky
- A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA 19104, USA
| | | | - Maithili Navaratnarajah
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Gao Zhang
- Molecular and Cellular Oncogenesis Program and Melanoma Research Institute, The Wistar Institute, Philadelphia, PA 19104, USA
| | - Mary T Doan
- A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA 19104, USA
| | - Helen Jiang
- A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA 19104, USA
| | - Michael Zaleski
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Lydia Kutzler
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Holly Lacko
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Yiling Lu
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Gordon B Mills
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Sciences University, Portland, OR 97201, USA
| | - Raghavendra Gowda
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Gavin P Robertson
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Joshua I Warrick
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Meenhard Herlyn
- Molecular and Cellular Oncogenesis Program and Melanoma Research Institute, The Wistar Institute, Philadelphia, PA 19104, USA
| | - Yuka Imamura
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Scot R Kimball
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - David J DeGraff
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Nathaniel W Snyder
- A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA 19104, USA
| | - Katherine M Aird
- Department of Cellular & Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA.
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15
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Vanzo R, Bartkova J, Merchut-Maya JM, Hall A, Bouchal J, Dyrskjøt L, Frankel LB, Gorgoulis V, Maya-Mendoza A, Jäättelä M, Bartek J. Autophagy role(s) in response to oncogenes and DNA replication stress. Cell Death Differ 2020; 27:1134-1153. [PMID: 31409894 PMCID: PMC7206042 DOI: 10.1038/s41418-019-0403-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 12/12/2022] Open
Abstract
Autophagy is an evolutionarily conserved process that captures aberrant intracellular proteins and/or damaged organelles for delivery to lysosomes, with implications for cellular and organismal homeostasis, aging and diverse pathologies, including cancer. During cancer development, autophagy may play both tumour-supporting and tumour-suppressing roles. Any relationships of autophagy to the established oncogene-induced replication stress (RS) and the ensuing DNA damage response (DDR)-mediated anti-cancer barrier in early tumorigenesis remain to be elucidated. Here, assessing potential links between autophagy, RS and DDR, we found that autophagy is enhanced in both early and advanced stages of human urinary bladder and prostate tumorigenesis. Furthermore, a high-content, single-cell-level microscopy analysis of human cellular models exposed to diverse genotoxic insults showed that autophagy is enhanced in cells that experienced robust DNA damage, independently of the cell-cycle position. Oncogene- and drug-induced RS triggered first DDR and later autophagy. Unexpectedly, genetic inactivation of autophagy resulted in RS, despite cellular retention of functional mitochondria and normal ROS levels. Moreover, recovery from experimentally induced RS required autophagy to support DNA synthesis. Consistently, RS due to the absence of autophagy could be partly alleviated by exogenous supply of deoxynucleosides. Our results highlight the importance of autophagy for DNA synthesis, suggesting that autophagy may support cancer progression, at least in part, by facilitating tumour cell survival and fitness under replication stress, a feature shared by most malignancies. These findings have implications for better understanding of the role of autophagy in tumorigenesis, as well as for attempts to manipulate autophagy as an anti-tumour therapeutic strategy.
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Affiliation(s)
- Riccardo Vanzo
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jirina Bartkova
- Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Medical Biochemistry and Biophysics, Division of Genome Biology, Science for Life Laboratory, Karolinska Institute, Stockholm, Sweden
| | | | - Arnaldur Hall
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jan Bouchal
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Lars Dyrskjøt
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Lisa B Frankel
- Danish Cancer Society Research Center, Copenhagen, Denmark
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Vassilis Gorgoulis
- Department of Histology and Embryology, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
- Biomedical Research Foundation of the Academy of Athens, Athens, Greece
- Faculty Institute of Cancer Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | | | - Marja Jäättelä
- Danish Cancer Society Research Center, Copenhagen, Denmark.
| | - Jiri Bartek
- Danish Cancer Society Research Center, Copenhagen, Denmark.
- Department of Medical Biochemistry and Biophysics, Division of Genome Biology, Science for Life Laboratory, Karolinska Institute, Stockholm, Sweden.
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16
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Seok J, Jung HS, Park S, Lee JO, Kim CJ, Kim GJ. Alteration of fatty acid oxidation by increased CPT1A on replicative senescence of placenta-derived mesenchymal stem cells. Stem Cell Res Ther 2020; 11:1. [PMID: 31900237 PMCID: PMC6941254 DOI: 10.1186/s13287-019-1471-y] [Citation(s) in RCA: 196] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 10/10/2019] [Accepted: 10/25/2019] [Indexed: 02/08/2023] Open
Abstract
Background Human placenta-derived mesenchymal stem cells (PD-MSCs) are powerful sources for cell therapy in regenerative medicine. However, a limited lifespan by senescence through mechanisms that are well unknown is the greatest obstacle. In the present study, we first demonstrated the characterization of replicative senescent PD-MSCs and their possible mitochondrial functional alterations. Methods Human PD-MSCs were cultured to senescent cells for a long period of time. The cells of before passage number 8 were early cells and after passage number 14 were late cells. Also, immortalized cells of PD-MSCs (overexpressed hTERT gene into PD-MSCs) after passage number 14 were positive control of non-senescent cells. The characterization and mitochondria analysis of PD-MSCs were explored with long-term cultivation. Results Long-term cultivation of PD-MSCs exhibited increases of senescent markers such as SA-β-gal and p21 including apoptotic factor, and decreases of proliferation, differentiation potential, and survival factor. Mitochondrial dysfunction was also observed in membrane potential and metabolic flexibility with enlarged mitochondrial mass. Interestingly, we founded that fatty acid oxidation (FAO) is an important metabolism in PD-MSCs, and carnitine palmitoyltransferase1A (CPT1A) overexpressed in senescent PD-MSCs. The inhibition of CPT1A induced a change of energy metabolism and reversed senescence of PD-MSCs. Conclusions These findings suggest that alteration of FAO by increased CPT1A plays an important role in mitochondrial dysfunction and senescence of PD-MSCs during long-term cultivation.
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Affiliation(s)
- Jin Seok
- Department of Biomedical Science, CHA University, 689, Sampyeong-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Hyun Sook Jung
- Department of Biomedical Science, CHA University, 689, Sampyeong-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Sohae Park
- Department of Biomedical Science, CHA University, 689, Sampyeong-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Jung Ok Lee
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
| | - Chong Jai Kim
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Gi Jin Kim
- Department of Biomedical Science, CHA University, 689, Sampyeong-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea.
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17
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Lewinska A, Adamczyk-Grochala J, Bloniarz D, Olszowka J, Kulpa-Greszta M, Litwinienko G, Tomaszewska A, Wnuk M, Pazik R. AMPK-mediated senolytic and senostatic activity of quercetin surface functionalized Fe 3O 4 nanoparticles during oxidant-induced senescence in human fibroblasts. Redox Biol 2019; 28:101337. [PMID: 31622846 PMCID: PMC6812309 DOI: 10.1016/j.redox.2019.101337] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/22/2019] [Accepted: 10/01/2019] [Indexed: 01/23/2023] Open
Abstract
Cellular senescence may contribute to aging and age-related diseases and senolytic drugs that selectively kill senescent cells may delay aging and promote healthspan. More recently, several categories of senolytics have been established, namely HSP90 inhibitors, Bcl-2 family inhibitors and natural compounds such as quercetin and fisetin. However, senolytic and senostatic potential of nanoparticles and surface-modified nanoparticles has never been addressed. In the present study, quercetin surface functionalized Fe3O4 nanoparticles (MNPQ) were synthesized and their senolytic and senostatic activity was evaluated during oxidative stress-induced senescence in human fibroblasts in vitro. MNPQ promoted AMPK activity that was accompanied by non-apoptotic cell death and decreased number of stress-induced senescent cells (senolytic action) and the suppression of senescence-associated proinflammatory response (decreased levels of secreted IL-8 and IFN-β, senostatic action). In summary, we have shown for the first time that MNPQ may be considered as promising candidates for senolytic- and senostatic-based anti-aging therapies. Quercetin surface functionalized magnetite nanoparticles (MNPQ) were synthesized. MNPQ eliminated hydrogen peroxide-induced senescent human fibroblasts. MNPQ limited senescence-associated proinflammatory responses. Senotherapeutic action of MNPQ was accompanied by increased activity of AMPK. MNPQ may be useful for senolytic- and senostatic-based anti-aging therapies.
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Affiliation(s)
- Anna Lewinska
- Department of Cell Biochemistry, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, 35-310, Rzeszow, Poland
| | - Jagoda Adamczyk-Grochala
- Department of Cell Biochemistry, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, 35-310, Rzeszow, Poland
| | - Dominika Bloniarz
- Department of Perinatology, Institute of Midwifery and Medical Emergency, Faculty of Medicine, University of Rzeszow, Pigonia 6, 35-310, Rzeszow, Poland
| | - Jakub Olszowka
- Department of Genetics, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, 35-310, Rzeszow, Poland
| | - Magdalena Kulpa-Greszta
- Faculty of Chemistry, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959, Rzeszow, Poland
| | | | - Anna Tomaszewska
- Department of Medicinal Chemistry and Nanomaterials, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, 35-310, Rzeszow, Poland
| | - Maciej Wnuk
- Department of Genetics, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, 35-310, Rzeszow, Poland.
| | - Robert Pazik
- Department of Medicinal Chemistry and Nanomaterials, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, 35-310, Rzeszow, Poland.
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18
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Abstract
A critical hallmark of aging is cellular senescence, a state of growth arrest and inflammatory cytokine release in cells, caused by a variety of stresses. Recent work has convincingly linked the accumulation of senescent cells in aged tissues to a decline in health and a limit of lifespan, primarily through "inflammaging". Importantly, interventions that clear senescent cells have achieved marked improvements in healthspan and lifespan in mice. A growing list of studies show that environmental stimuli can affect aging and longevity through conserved pathways which, in turn, modulate chromatin states. This review consolidates key findings of chromatin state changes in senescence including histone modifications, histone variants, DNA methylation and changes in three-dimensional genome organization. This information will facilitate the identification of mechanisms and discovery of potential epigenetic targets for therapeutic interventions in aging and age-related disease.
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Affiliation(s)
- Na Yang
- National Institute on Aging, NIH, Laboratory of Genetics and Genomics, Functional Epigenomics Unit, Baltimore, MD 21224, USA
| | - Payel Sen
- Epigenetics Institute and Department of Cell and Developmental Biology, University of Pennsylvania, Smilow Center for Translational Research, Philadelphia, PA 19104, USA
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19
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Leukocyte count, systemic inflammation, and health status in older adults: a narrative review. ANTHROPOLOGICAL REVIEW 2018. [DOI: 10.2478/anre-2018-0007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Epidemiological and clinical studies suggest that elevated leukocyte count within the normal range can predict cardiovascular and total mortality in older adults. These findings are remarkable because this simple and common laboratory test is included in routine medical check-ups. It is well known that chronic systemic inflammation (inflammaging) is one of the hallmarks of aging and an important component of obesity-associated insulin resistance that can lead to type 2 diabetes and other health problems in both overweight individuals and elderly people. To understand the molecular mechanisms linking increased systemic inflammation with aging-associated diseases and elevated leukocyte counts in the elderly is to unravel the multiplicity of molecular factors and mechanisms involved in chronic low-grade systemic inflammation, the gradual accumulation of random molecular damage, age-related diseases, and the process of leukopoiesis. There are several possible mechanisms through which chronic low-grade systemic inflammation is associated with both higher leukocyte count and a greater risk of aging-associated conditions in older adults. For example, the IL-6 centric model predicts that this biomediator is involved in chronic systemic inflammation and leukopoiesis, thereby suggesting that elevated leukocyte count is a signal of poor health in older adults. Alternatively, an increase in neutrophil and monocyte counts can be a direct cause of cardiovascular events in the elderly. Interestingly, some authors assert that the predictive ability of elevated leukocyte counts with regard to cardiovascular and allcause mortality among older adults surpass the predictive value of total cholesterol. This review reports the recent findings on the links between elevated but normal leukocyte counts and the increased risks of all-cause, cardiovascular, and cancer mortality. The possible molecular mechanisms linking higher but normal leukocyte counts with increased risk of aging-associated diseases in the elderly are discussed here.
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Wang D, Liu Y, Zhang R, Zhang F, Sui W, Chen L, Zheng R, Chen X, Wen F, Ouyang HW, Ji J. Apoptotic transition of senescent cells accompanied with mitochondrial hyper-function. Oncotarget 2017; 7:28286-300. [PMID: 27056883 PMCID: PMC5053727 DOI: 10.18632/oncotarget.8536] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 03/06/2016] [Indexed: 12/20/2022] Open
Abstract
Defined as stable cell-cycle arrest, cellular senescence plays an important role in diverse biological processes including tumorigenesis, organismal aging, and embryonic development. Although increasing evidence has documented the metabolic changes in senescent cells, mitochondrial function and its potential contribution to the fate of senescent cells remain largely unknown. Here, using two in vitro models of cellular senescence induced by doxorubicin treatment and prolonged passaging of neonatal human foreskin fibroblasts, we report that senescent cells exhibited high ROS level and augmented glucose metabolic rate concomitant with both morphological and quantitative changes of mitochondria. Furthermore, mitochondrial membrane potential depolarized at late stage of senescent cells which eventually led to apoptosis. Our study reveals that mitochondrial hyper-function contributes to the implementation of cellular senescence and we propose a model in which the mitochondrion acts as the key player in promoting fate-determination in senescent cells.
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Affiliation(s)
- Danli Wang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yang Liu
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Rui Zhang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fen Zhang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Weihao Sui
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Li Chen
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ran Zheng
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaowen Chen
- Division of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen, China
| | - Feiqiu Wen
- Division of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen, China
| | - Hong-Wei Ouyang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, China
| | - Junfeng Ji
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, China
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21
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Ademowo OS, Dias HKI, Burton DGA, Griffiths HR. Lipid (per) oxidation in mitochondria: an emerging target in the ageing process? Biogerontology 2017; 18:859-879. [PMID: 28540446 PMCID: PMC5684309 DOI: 10.1007/s10522-017-9710-z] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/09/2017] [Indexed: 12/11/2022]
Abstract
Lipids are essential for physiological processes such as maintaining membrane integrity, providing a source of energy and acting as signalling molecules to control processes including cell proliferation, metabolism, inflammation and apoptosis. Disruption of lipid homeostasis can promote pathological changes that contribute towards biological ageing and age-related diseases. Several age-related diseases have been associated with altered lipid metabolism and an elevation in highly damaging lipid peroxidation products; the latter has been ascribed, at least in part, to mitochondrial dysfunction and elevated ROS formation. In addition, senescent cells, which are known to contribute significantly to age-related pathologies, are also associated with impaired mitochondrial function and changes in lipid metabolism. Therapeutic targeting of dysfunctional mitochondrial and pathological lipid metabolism is an emerging strategy for alleviating their negative impact during ageing and the progression to age-related diseases. Such therapies could include the use of drugs that prevent mitochondrial uncoupling, inhibit inflammatory lipid synthesis, modulate lipid transport or storage, reduce mitochondrial oxidative stress and eliminate senescent cells from tissues. In this review, we provide an overview of lipid structure and function, with emphasis on mitochondrial lipids and their potential for therapeutic targeting during ageing and age-related disease.
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Affiliation(s)
- O S Ademowo
- Life & Health Sciences, Aston University, Birmingham, UK
| | - H K I Dias
- Life & Health Sciences, Aston University, Birmingham, UK
| | - D G A Burton
- Life & Health Sciences, Aston University, Birmingham, UK
| | - H R Griffiths
- Life & Health Sciences, Aston University, Birmingham, UK.
- Health and Medical Sciences, University of Surrey, Guildford, UK.
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22
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Dahl ES, Aird KM. Ataxia-Telangiectasia Mutated Modulation of Carbon Metabolism in Cancer. Front Oncol 2017; 7:291. [PMID: 29238697 PMCID: PMC5712564 DOI: 10.3389/fonc.2017.00291] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 11/14/2017] [Indexed: 12/31/2022] Open
Abstract
The ataxia-telangiectasia mutated (ATM) protein kinase has been extensively studied for its role in the DNA damage response and its association with the disease ataxia telangiectasia. There is increasing evidence that ATM also plays an important role in other cellular processes, including carbon metabolism. Carbon metabolism is highly dysregulated in cancer due to the increased need for cellular biomass. A number of recent studies report a non-canonical role for ATM in the regulation of carbon metabolism. This review highlights what is currently known about ATM's regulation of carbon metabolism, the implication of these pathways in cancer, and the development of ATM inhibitors as therapeutic strategies for cancer.
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Affiliation(s)
- Erika S. Dahl
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA, United States
| | - Katherine M. Aird
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA, United States
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23
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Jellusova J, Rickert RC. A Brake for B Cell Proliferation: Appropriate responses to metabolic stress are crucial to maintain B cell viability and prevent malignant outgrowth. Bioessays 2017; 39. [PMID: 28961325 DOI: 10.1002/bies.201700079] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/30/2017] [Indexed: 12/23/2022]
Abstract
B cell activation is accompanied by metabolic adaptations to meet the increased energetic demands of proliferation. The metabolic composition of the microenvironment is known to change during a germinal center response, in inflamed tissue and to vary significantly between different organs. To sustain cellular homeostasis B cells need to be able to dynamically adapt to changes in their environment. An inability to take up and process available nutrients can result in impaired B cell growth and a diminished humoral immune response. Furthermore, the metabolic microenvironment can affect B cell signaling and provide a means to avoid aberrant proliferation or modulate B cell function. Thus, a better understanding of the intricate interplay between cell signaling and metabolism could provide novel insight into how B cell function is regulated and have implications for the development of vaccines or treatment of autoimmune disorders and B cell derived malignancies.
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Affiliation(s)
- Julia Jellusova
- BIOSS Centre for Biological Signalling Studies, Albert-Ludwigs-University of Freiburg, Freiburg 79104, Germany.,Department of Molecular Immunology, Institute of Biology III at the Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg 79104, Germany.,Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Robert C Rickert
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
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24
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Andrejeva G, Rathmell JC. Similarities and Distinctions of Cancer and Immune Metabolism in Inflammation and Tumors. Cell Metab 2017; 26:49-70. [PMID: 28683294 PMCID: PMC5555084 DOI: 10.1016/j.cmet.2017.06.004] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/22/2017] [Accepted: 06/09/2017] [Indexed: 12/20/2022]
Abstract
It has been appreciated for nearly 100 years that cancer cells are metabolically distinct from resting tissues. More recently understood is that this metabolic phenotype is not unique to cancer cells but instead reflects characteristics of proliferating cells. Similar metabolic transitions also occur in the immune system as cells transition from resting state to stimulated effectors. A key finding in immune metabolism is that the metabolic programs of different cell subsets are distinctly associated with immunological function. Further, interruption of those metabolic pathways can shift immune cell fate to modulate immunity. These studies have identified numerous metabolic similarities between cancer and immune cells but also critical differences that may be exploited and that affect treatment of cancer and immunological diseases.
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Affiliation(s)
- Gabriela Andrejeva
- Vanderbilt Center for Immunobiology, Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center and Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Jeffrey C Rathmell
- Vanderbilt Center for Immunobiology, Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center and Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA.
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25
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Biphasic Modeling of Mitochondrial Metabolism Dysregulation during Aging. Trends Biochem Sci 2017; 42:702-711. [PMID: 28669456 DOI: 10.1016/j.tibs.2017.06.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/13/2017] [Accepted: 06/08/2017] [Indexed: 11/21/2022]
Abstract
Organismal aging is classically viewed as a gradual decline of cellular functions and a systemic deterioration of tissues that leads to an increased mortality rate in older individuals. According to the prevailing theory, aging is accompanied by a continuous and progressive decline in mitochondrial metabolic activity in cells. However, the most robust approaches to extending healthy lifespan are frequently linked with reduced energy intake or with lowering of mitochondrial activity. While these observations appear contradictory, recent work and technological advances demonstrate that metabolic deregulation during aging is potentially biphasic. In this Opinion we propose a novel framework where middle-age is accompanied by increased mitochondrial activity that subsequently declines at advanced ages.
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Affiliation(s)
- Katherine M Aird
- Gene Expression and Regulation, The Wistar Institute, Philadelphia, PA, USA
| | - Rugang Zhang
- Gene Expression and Regulation, The Wistar Institute, Philadelphia, PA, USA
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