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Chen LY, Wu DS, Shen YA. Fatty Acid Synthase Inhibitor Cerulenin Hinders Liver Cancer Stem Cell Properties through FASN/APP Axis as Novel Therapeutic Strategies. J Lipid Res 2024:100660. [PMID: 39332525 DOI: 10.1016/j.jlr.2024.100660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 09/17/2024] [Accepted: 09/19/2024] [Indexed: 09/29/2024] Open
Abstract
Hepatocellular carcinoma (HCC) poses significant treatment challenges due to high postoperative recurrence rates and the limited effectiveness of targeted medications. Researchers have identified the unique metabolic profiles of cancer stem cells (CSCs) as the primary drivers of cancer recurrence, metastasis, and drug resistance. Therefore, in order to address the therapeutic conundrum, this study focused on rewinding metabolic reprogramming of CSCs as a novel therapeutic strategy. HCC CSCs exhibited elevated fatty acid (FA) metabolism compared with parental cells. In order to specifically target FA metabolism in CSCs, we utilized cerulenin, a fatty acid synthase (FASN) inhibitor. Surprisingly, cerulenin can diminish CSC-like characteristics, including stemness gene expression, spherogenicity, tumorigenicity, and metastatic potential. In addition, sorafenib, a multikinase inhibitor used as targeted therapy for advanced HCC, was employed in combination with cerulenin, demonstrating a great synergistic effect, particularly in CSCs. Importantly, our RNA sequencing analysis disclosed that the amyloid protein precursor (APP) is a crucial downstream effector of FASN in regulating CSC properties. We found that APP plays a crucial role in CSCs' characteristics that can be inhibited by cerulenin. By focusing on FA metabolism, this study identified the FASN/APP axis as a viable target to develop a more potent therapy strategy for advanced HCC.
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Affiliation(s)
- Liang-Yun Chen
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Dao-Sian Wu
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Yao-An Shen
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan; International Master/Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan.
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2
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Zhang X, Zhang X, Li M, Jiao S, Zhang Y. Monitoring Partial EMT Dynamics through Cell Mechanics Using Scanning Ion Conductance Microscopy. Anal Chem 2024; 96:14835-14842. [PMID: 39238086 DOI: 10.1021/acs.analchem.4c02612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
Tumor cells undergo an epithelial-mesenchymal transition (EMT) accompanied by a reduction in elasticity to initiate metastasis. However, in vivo, tumor cells typically exhibit partial EMT rather than fully EMT. Whether cell mechanics can accurately identify the status of partial EMT, especially the dynamic process, remains unclear. To elucidate the relationship between cell mechanics and partial EMT, we employed scanning ion conductance microscopy (SICM) to analyze the dynamic changes in cell mechanics during the TGFβ-induced partial EMT of HCT116 colon cancer cells. Cells undergoing partial EMT, characterized by increased expression of EMT transcription factors, Snai1 and Zeb1, and EMT-related genes, Fn1 and MMP9, while retaining the expression of the epithelial markers E-cadherin (E-cad) and EpCAM, did not exhibit significant changes in cell morphology, suggesting that morphological changes alone were inadequate for identifying partial EMT status. However, cell elasticity markedly decreased in partial EMT cells, and this reduction was reversed with the reversible transition of partial EMT. These findings suggest a strong correlation between cell mechanics and the dynamic process of partial EMT, indicating that cell mechanics could serve as a valuable label-free marker for identifying the status of partial EMT while preserving the physiological characteristics of tumor cells.
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Affiliation(s)
- Xufang Zhang
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China
| | - Xueqia Zhang
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China
| | - Mingkun Li
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China
| | - Shuopei Jiao
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China
| | - Yanjun Zhang
- WPI Nano-Life Science Institute (Nano-LSI), Kanazawa University, Kanazawa 920-1192, Japan
- Department of Medicine, Imperial College London, London W12 0NN, U.K
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3
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Liu Q, Zhu X, Guo S. From pancreas to lungs: The role of immune cells in severe acute pancreatitis and acute lung injury. Immun Inflamm Dis 2024; 12:e1351. [PMID: 39023414 PMCID: PMC11256889 DOI: 10.1002/iid3.1351] [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: 03/28/2024] [Revised: 06/25/2024] [Accepted: 07/08/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND Severe acute pancreatitis (SAP) is a potentially lethal inflammatory pancreatitis condition that is usually linked to multiple organ failure. When it comes to SAP, the lung is the main organ that is frequently involved. Many SAP patients experience respiratory failure following an acute lung injury (ALI). Clinicians provide insufficient care for compounded ALI since the underlying pathophysiology is unknown. The mortality rate of SAP patients is severely impacted by it. OBJECTIVE The study aims to provide insight into immune cells, specifically their roles and modifications during SAP and ALI, through a comprehensive literature review. The emphasis is on immune cells as a therapeutic approach for treating SAP and ALI. FINDINGS Immune cells play an important role in the complicated pathophysiology ofSAP and ALI by maintaining the right balance of pro- and anti-inflammatory responses. Immunomodulatory drugs now in the market have low thepeutic efficacy because they selectively target one immune cell while ignoring immune cell interactions. Accurate management of dysregulated immune responses is necessary. A critical initial step is precisely characterizing the activity of the immune cells during SAP and ALI. CONCLUSION Given the increasing incidence of SAP, immunotherapy is emerging as a potential treatment option for these patients. Interactions among immune cells improve our understanding of the intricacy of concurrent ALI in SAP patients. Acquiring expertise in these domains will stimulate the development of innovative immunomodulation therapies that will improve the outlook for patients with SAP and ALI.
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Affiliation(s)
- Qi Liu
- Emergency Medicine Clinical Research Center, Beijing Chao‐Yang HospitalCapital Medical UniversityBeijingChina
- Beijing Key Laboratory of Cardiopulmonary Cerebral ResuscitationBeijingChina
| | - Xiaomei Zhu
- Emergency Medicine Clinical Research Center, Beijing Chao‐Yang HospitalCapital Medical UniversityBeijingChina
- Beijing Key Laboratory of Cardiopulmonary Cerebral ResuscitationBeijingChina
| | - Shubin Guo
- Emergency Medicine Clinical Research Center, Beijing Chao‐Yang HospitalCapital Medical UniversityBeijingChina
- Beijing Key Laboratory of Cardiopulmonary Cerebral ResuscitationBeijingChina
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Chooklin S, Chuklin S, Barylyak R. NEUTROPHIL EXTRACELLULAR TRAPS AS A THERAPEUTIC TARGET IN SYSTEMIC COMPLICATIONS OF ACUTE PANCREATITIS. FIZIOLOHICHNYĬ ZHURNAL 2022; 68:80-89. [DOI: 10.15407/fz68.06.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The review focuses on the role of neutrophilic extracellular traps (NETs) in systemic complications of acute pancreatitis. NETs can activate trypsin, cause inflammation and pancreatic tissue damage, and clog the excretory ducts. The main fatal complications of acute pancreatitis, such as acute lung injury, kidney, myocardial and CNS damage, intestinal dysfunction, hemocoagulation disorders are associated with NETs. Focusing on the formation and degradation of NETs may be a way to develop strategies for treating organ damage in severe acute pancreatitis. Current data on the use of NET-targeted therapy in experimental severe acute pancreatitis, which is aimed at blocking the NETs formation and disassembly of the DNA scaffold, inhibition of proteins toxicity in NETs, are considered.
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Tomaz LB, Liu BA, Meroshini M, Ong SLM, Tan EK, Tolwinski NS, Williams CS, Gingras AC, Leushacke M, Dunn NR. MCC is a centrosomal protein that relocalizes to non-centrosomal apical sites during intestinal cell differentiation. J Cell Sci 2022; 135:jcs259272. [PMID: 36217793 PMCID: PMC10658790 DOI: 10.1242/jcs.259272] [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: 08/13/2021] [Accepted: 09/27/2022] [Indexed: 11/20/2022] Open
Abstract
The gene mutated in colorectal cancer (MCC) encodes a coiled-coil protein implicated, as its name suggests, in the pathogenesis of hereditary human colon cancer. To date, however, the contributions of MCC to intestinal homeostasis and disease remain unclear. Here, we examine the subcellular localization of MCC, both at the mRNA and protein levels, in the adult intestinal epithelium. Our findings reveal that Mcc transcripts are restricted to proliferating crypt cells, including Lgr5+ stem cells, where the Mcc protein is distinctly associated with the centrosome. Upon intestinal cellular differentiation, Mcc is redeployed to the apical domain of polarized villus cells where non-centrosomal microtubule organizing centers (ncMTOCs) are positioned. Using intestinal organoids, we show that the shuttling of the Mcc protein depends on phosphorylation by casein kinases 1δ and ε, which are critical modulators of WNT signaling. Together, our findings support a role for MCC in establishing and maintaining the cellular architecture of the intestinal epithelium as a component of both the centrosome and ncMTOC.
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Affiliation(s)
- Lucian B. Tomaz
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
- School of Biological Sciences, Nanyang Technological University, 637551, Singapore
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 138648, Singapore
| | - Bernard A. Liu
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health, Toronto, ON M5G 1X5, Canada
| | - Meroshini M
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
| | - Sheena L. M. Ong
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 138648, Singapore
| | - Ee Kim Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 138648, Singapore
| | | | | | - Anne-Claude Gingras
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Marc Leushacke
- Skin Research Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 308232, Singapore
| | - N. Ray Dunn
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
- School of Biological Sciences, Nanyang Technological University, 637551, Singapore
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 138648, Singapore
- Skin Research Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 308232, Singapore
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Sun C, Wang L, Du DD, Ji JB, Yang XX, Yu BF, Shang PF, Guo XL. DSC2 Suppresses the Metastasis of Gastric Cancer through Inhibiting the BRD4/Snail Signaling Pathway and the Transcriptional Activity of β-Catenin. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4813571. [PMID: 36120591 PMCID: PMC9473342 DOI: 10.1155/2022/4813571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/09/2022] [Accepted: 08/13/2022] [Indexed: 11/17/2022]
Abstract
Downregulated DSC2 involved in the metastasis of cancers. Unfortunately, its role on the development of gastric cancer (GC) and the potential mechanisms remain unclear. Bioinformatics analysis, Western blot, qRT-PCR, and immunohistochemistry were performed to detect the DSC2 levels of human GC and normal stomach tissues. The role of DSC2 and the downstream signaling in gastric carcinogenesis were explored by using GC specimens, GC cells with different DSC2 expression, inhibitors, and mouse metastasis models. We found that the level of DSC2 decreased significantly in GC tissues and cells. Recovered DSC2 inhibited the invasion and migration of GC cells both in culture and in xenografts. Mechanistically, DSC2 could not only decrease Snail level and nuclear BRD4 level by forming DSC2/BRD4, but also inhibit nuclear translocation of β-catenin. We concluded that DSC2 inhibited the metastasis of GC, and the underlying mechanisms were closely related to the regulation on nuclear translocation of BRD4 and β-catenin. Our results suggest that DSC2 may serve as a novel therapeutic target for GC.
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Affiliation(s)
- Chao Sun
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Lei Wang
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Dan-dan Du
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Jian-bo Ji
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Xiao-xia Yang
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Bing-fang Yu
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Peng-fei Shang
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Xiu-Li Guo
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
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7
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Jahan Z, Benthani FA, Currey N, Parker HW, Dahlstrom JE, Caldon CE, Kohonen-Corish MRJ. MCC Gene Silencing Is a CpG Island Methylator Phenotype-Associated Factor That Predisposes Colon Cancer Cells to Irinotecan and Olaparib. Cancers (Basel) 2022; 14:cancers14122859. [PMID: 35740525 PMCID: PMC9221012 DOI: 10.3390/cancers14122859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 06/06/2022] [Indexed: 12/10/2022] Open
Abstract
Simple Summary DNA hypermethylation of specific regulatory regions causes gene silencing that is an important cancer-promoting mechanism. A subset of colorectal cancers display concordant hypermethylation and silencing of multiple genes, and this appears to change the way in which tumors respond to some cancer therapies. The aim of this study was to evaluate how the presence of the MCC gene silencing relates to the highly methylated subset of colorectal cancers and how it may affect therapy responsiveness. We found that strong MCC silencing is found throughout the hypermethylated subset, but MCC expression is also lost or reduced in some other tumors which show hypomethylated regions of the gene. In cell culture experiments, the deletion of MCC increased the responsiveness of cancer cells to the chemotherapy drug irinotecan (SN38), and this was further augmented by a targeted cancer drug, the PARP-inhibitor Olaparib. Abstract Chemotherapy is a mainstay of colorectal cancer treatment, and often involves a combination drug regime. CpG island methylator phenotype (CIMP)-positive tumors are potentially more responsive to the topoisomerase-inhibitor irinotecan. The mechanistic basis of the increased sensitivity of CIMP cancers to irinotecan is poorly understood. Mutated in Colorectal Cancer (MCC) is emerging as a multifunctional tumor suppressor gene in colorectal and liver cancers, and has been implicated in drug responsiveness. Here, we found that CIMP tumors undergo MCC loss almost exclusively via promoter hypermethylation rather than copy number variation or mutations. A subset of cancers display hypomethylation which is also associated with low MCC expression, particularly in rectal cancer, where CIMP is rare. MCC knockdown or deletion was found to sensitize cells to SN38 (the active metabolite of irinotecan) or the PARP-inhibitor Olaparib. A synergistic effect on cell death was evident when these drugs were used concurrently. The improved SN38/irinotecan efficacy was accompanied by the down-regulation of DNA repair genes. Thus, differential methylation of MCC is potentially a valuable biomarker to identify colorectal cancers suitable for irinotecan therapy, possibly in combination with PARP inhibitors.
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Affiliation(s)
- Zeenat Jahan
- Woolcock Institute of Medical Research, 431 Glebe Point Road, Glebe, Sydney, NSW 2037, Australia; (Z.J.); (H.W.P.)
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (F.A.B.); (N.C.); (C.E.C.)
| | - Fahad A. Benthani
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (F.A.B.); (N.C.); (C.E.C.)
- St. Vincent’s Clinical School, UNSW Sydney, Sydney, NSW 2010, Australia
| | - Nicola Currey
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (F.A.B.); (N.C.); (C.E.C.)
| | - Hannah W. Parker
- Woolcock Institute of Medical Research, 431 Glebe Point Road, Glebe, Sydney, NSW 2037, Australia; (Z.J.); (H.W.P.)
- Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jane E. Dahlstrom
- ACT Pathology, The Canberra Hospital and Australian National University Medical School, Canberra, ACT 2605, Australia;
| | - C. Elizabeth Caldon
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (F.A.B.); (N.C.); (C.E.C.)
- St. Vincent’s Clinical School, UNSW Sydney, Sydney, NSW 2010, Australia
| | - Maija R. J. Kohonen-Corish
- Woolcock Institute of Medical Research, 431 Glebe Point Road, Glebe, Sydney, NSW 2037, Australia; (Z.J.); (H.W.P.)
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (F.A.B.); (N.C.); (C.E.C.)
- Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
- Microbiome Research Centre, School of Clinical Medicine, UNSW Sydney, Sydney, NSW 2217, Australia
- School of Medicine, Western Sydney University, Sydney, NSW 2560, Australia
- Correspondence: ; Tel.: +61-2-9114-0275
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Song H, Zhuang L, Xu X, Shi J, Hu W, Liu Z, Shi S. MCC Regulator of WNT Signaling Pathway (MCC) Is a Podocyte Essential Gene. Front Med (Lausanne) 2021; 8:777563. [PMID: 34926519 PMCID: PMC8674659 DOI: 10.3389/fmed.2021.777563] [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: 09/15/2021] [Accepted: 11/11/2021] [Indexed: 12/13/2022] Open
Abstract
Podocytes are an integral part of the glomerular filtration barrier. Many genes are already known to be essential for podocyte survival, structure and function, but there are more podocyte essential genes to be identified. By single-cell RNA-seq of mouse podocytes, we detected the expression of gene encoding MCC regulator of WNT signaling pathway (MCC) in majority of the podocytes and speculated that MCC is essential for podocytes. We confirmed MCC expression in mouse podocytes and further showed its expression in human podocytes. To experimentally prove the essentiality of MCC for podocytes, we knocked down MCC in cultured podocytes and found marked morphological change of cell shape, cytoskeletal F-actin stress fiber disruption, increased apoptosis, and downregulation of podocyte essential genes, CD2AP and WT1, demonstrating that MCC is essential for podocytes. Since MCC has been implicated in cell cycle and β-catenin signaling, we examined the expression of cell cycle related genes and activity of β-catenin in the MCC knockdown podocytes, but did not find significant changes. To further explore the mechanism underlying the role of MCC in podocytes, we performed RNA-sequencing and bioinformatics analysis of MCC knockdown podocytes and found a significant enrichment of the regulated genes in lamellipodia formation. Consistently, we found that MCC is present in lamellipodia and MCC knockdown resulted in loss of lamellipodia in the cells. Lastly, we found that MCC was downregulated in podocytes treated with puromycin aminonucleosides and in glomeruli of diabetic mice and FSGS patients, implicating MCC is involved in the development of podocytopathy and proteinuria. In conclusion, MCC is potentially essential for podocytes and its downregulation may be involved in podocytopathy.
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Affiliation(s)
- Hui Song
- National Clinical Research Center for Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Lulu Zhuang
- National Clinical Research Center for Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiaodong Xu
- National Clinical Research Center for Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jingsong Shi
- National Clinical Research Center for Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Weixin Hu
- National Clinical Research Center for Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zhihong Liu
- National Clinical Research Center for Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Shaolin Shi
- National Clinical Research Center for Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Spier A, Connor MG, Steiner T, Carvalho F, Cossart P, Eisenreich W, Wai T, Stavru F. Mitochondrial respiration restricts Listeria monocytogenes infection by slowing down host cell receptor recycling. Cell Rep 2021; 37:109989. [PMID: 34758302 PMCID: PMC8595641 DOI: 10.1016/j.celrep.2021.109989] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 07/26/2021] [Accepted: 10/21/2021] [Indexed: 01/06/2023] Open
Abstract
Mutations in mitochondrial genes impairing energy production cause mitochondrial diseases (MDs), and clinical studies have shown that MD patients are prone to bacterial infections. However, the relationship between mitochondrial (dys)function and infection remains largely unexplored, especially in epithelial cells, the first barrier to many pathogens. Here, we generate an epithelial cell model for one of the most common mitochondrial diseases, Leigh syndrome, by deleting surfeit locus protein 1 (SURF1), an assembly factor for respiratory chain complex IV. We use this genetic model and a complementary, nutrient-based approach to modulate mitochondrial respiration rates and show that impaired mitochondrial respiration favors entry of the human pathogen Listeria monocytogenes, a well-established bacterial infection model. Reversely, enhanced mitochondrial energy metabolism decreases infection efficiency. We further demonstrate that endocytic recycling is reduced in mitochondrial respiration-dependent cells, dampening L. monocytogenes infection by slowing the recycling of its host cell receptor c-Met, highlighting a previously undescribed role of mitochondrial respiration during infection. Enhanced mitochondrial respiration decreases L. monocytogenes infection Bacterial entry is affected by the host cell metabolism Mitochondrial respiration restricts host cell receptor recycling and thus infection
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Affiliation(s)
- Anna Spier
- Evolutionary Biology of the Microbial Cell Unit, Institut Pasteur, Paris, France; Bacteria-Cell Interactions Unit, Institut Pasteur, Paris, France; Université de Paris, Paris, France; UMR2001, CNRS, Paris, France
| | - Michael G Connor
- Université de Paris, Paris, France; Chromatin and Infection Unit, Institut Pasteur, Paris, France
| | - Thomas Steiner
- Bavarian NMR Center - Structural Membrane Biochemistry, Department of Chemistry, Technische Universität München, Garching, Germany
| | - Filipe Carvalho
- Bacteria-Cell Interactions Unit, Institut Pasteur, Paris, France
| | - Pascale Cossart
- Bacteria-Cell Interactions Unit, Institut Pasteur, Paris, France; Université de Paris, Paris, France.
| | - Wolfgang Eisenreich
- Bavarian NMR Center - Structural Membrane Biochemistry, Department of Chemistry, Technische Universität München, Garching, Germany
| | - Timothy Wai
- Université de Paris, Paris, France; Mitochondrial Biology Unit, Institut Pasteur, Paris, France.
| | - Fabrizia Stavru
- Evolutionary Biology of the Microbial Cell Unit, Institut Pasteur, Paris, France; Bacteria-Cell Interactions Unit, Institut Pasteur, Paris, France; Université de Paris, Paris, France; UMR2001, CNRS, Paris, France
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10
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Neutrophil Extracellular Traps (NETs) in Severe SARS-CoV-2 Lung Disease. Int J Mol Sci 2021; 22:ijms22168854. [PMID: 34445556 PMCID: PMC8396177 DOI: 10.3390/ijms22168854] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 08/12/2021] [Accepted: 08/16/2021] [Indexed: 12/16/2022] Open
Abstract
Neutrophil extracellular traps (NETs), built from mitochondrial or nuclear DNA, proteinases, and histones, entrap and eliminate pathogens in the course of bacterial or viral infections. Neutrophils’ activation and the formation of NETs have been described as major risk factors for acute lung injury, multi-organ damage, and mortality in COVID-19 disease. NETs-related lung injury involves both epithelial and endothelial cells, as well as the alveolar-capillary barrier. The markers for NETs formation, such as circulating DNA, neutrophil elastase (NE) activity, or myeloperoxidase-DNA complexes, were found in lung specimens of COVID-19 victims, as well as in sera and tracheal aspirates obtained from COVID-19 patients. DNA threads form large conglomerates causing local obstruction of the small bronchi and together with NE are responsible for overproduction of mucin by epithelial cells. Various components of NETs are involved in the pathogenesis of cytokine storm in SARS-CoV-2 pulmonary disease. NETs are responsible for the interplay between inflammation and thrombosis in the affected lungs. The immunothrombosis, stimulated by NETs, has a poor prognostic significance. Better understanding of the role of NETs in the course of COVID-19 can help to develop novel approaches to the therapeutic interventions in this condition.
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Meessen S, Currey N, Jahan Z, Parker HW, Jenkins MA, Buchanan DD, Hopper JL, Segelov E, Dahlstrom JE, Kohonen-Corish MRJ. Tetranucleotide and Low Microsatellite Instability Are Inversely Associated with the CpG Island Methylator Phenotype in Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13143529. [PMID: 34298744 PMCID: PMC8308094 DOI: 10.3390/cancers13143529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/08/2021] [Accepted: 07/08/2021] [Indexed: 01/19/2023] Open
Abstract
Simple Summary A type of DNA mismatch repair defect known as “elevated microsatellite alterations at selected tetranucleotide repeats” (EMAST) is found across many different cancers. Tetranucleotide microsatellite instability, which is caused by MSH3 mismatch repair gene/protein loss-of-function, shares a molecular basis with “low microsatellite instability” (MSI-L) in colorectal cancer. Tetranucleotide microsatellite instability is also a byproduct of “high microsatellite instability” (MSI-H) that arises from deficiency of mismatch repair due to MSH2, MSH6, MLH1 or PMS2 gene alterations. MSH3-related EMAST is emerging as a biomarker of poor prognosis in colorectal cancer and needs to be clearly differentiated from MSI-H. Here, we show that tumours with non-MSI-H-related EMAST or MSI-L rarely show concordant promoter methylation of multiple marker genes. Colorectal tumours that are positive for a single (1/5) tetranucleotide repeat marker are an important subset of the EMAST spectrum. Abstract MSH3 gene or protein deficiency or loss-of-function in colorectal cancer can cause a DNA mismatch repair defect known as “elevated microsatellite alterations at selected tetranucleotide repeats” (EMAST). A high percentage of MSI-H tumors exhibit EMAST, while MSI-L is also linked with EMAST. However, the distribution of CpG island methylator phenotype (CIMP) within the EMAST spectrum is not known. Five tetranucleotide repeat and five MSI markers were used to classify 100 sporadic colorectal tumours for EMAST, MSI-H and MSI-L according to the number of unstable markers detected. Promoter methylation was determined using methylation-specific PCR for MSH3, MCC, CDKN2A (p16) and five CIMP marker genes. EMAST was found in 55% of sporadic colorectal carcinomas. Carcinomas with only one positive marker (EMAST-1/5, 26%) were associated with advanced tumour stage, increased lymph node metastasis, MSI-L and lack of CIMP-H. EMAST-2/5 (16%) carcinomas displayed some methylation but MSI was rare. Carcinomas with ≥3 positive EMAST markers (13%) were more likely to have a proximal colon location and be MSI-H and CIMP-H. Our study suggests that EMAST/MSI-L is a valuable prognostic and predictive marker for colorectal carcinomas that do not display the high methylation phenotype CIMP-H.
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Affiliation(s)
- Sabine Meessen
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (S.M.); (N.C.)
| | - Nicola Currey
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (S.M.); (N.C.)
| | - Zeenat Jahan
- The Woolcock Institute of Medical Research, The University of Sydney, Sydney, NSW 2037, Australia; (Z.J.); (H.W.P.)
| | - Hannah W. Parker
- The Woolcock Institute of Medical Research, The University of Sydney, Sydney, NSW 2037, Australia; (Z.J.); (H.W.P.)
- Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Mark A. Jenkins
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC 3000, Australia; (M.A.J.); (J.L.H.)
| | - Daniel D. Buchanan
- Department of Clinical Pathology, University of Melbourne, Melbourne, VIC 3010, Australia;
- University of Melbourne Centre for Cancer Research, University of Melbourne, Melbourne, VIC 3010, Australia
- Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Melbourne, VIC 3010, Australia
| | - John L. Hopper
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC 3000, Australia; (M.A.J.); (J.L.H.)
| | - Eva Segelov
- Department of Oncology, Monash University and Monash Health, Melbourne, VIC 3168, Australia;
| | - Jane E. Dahlstrom
- ACT Pathology, The Canberra Hospital and Australian National University Medical School, Canberra, ACT 2605, Australia;
| | - Maija R. J. Kohonen-Corish
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (S.M.); (N.C.)
- The Woolcock Institute of Medical Research, The University of Sydney, Sydney, NSW 2037, Australia; (Z.J.); (H.W.P.)
- Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
- Microbiome Research Centre, St George & Sutherland Clinical School, UNSW Sydney, Sydney, NSW 2217, Australia
- School of Medicine, Western Sydney University, Sydney, NSW 2751, Australia
- Correspondence:
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12
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Ma W, Xie Z, Chen H, Zeng L, Chen X, Feng S, Lu X. Nuclear translocation of β-catenin induced by E-cadherin endocytosis causes recurrent erosion of diabetic cornea. Exp Biol Med (Maywood) 2021; 246:1167-1176. [PMID: 33554651 PMCID: PMC8142105 DOI: 10.1177/1535370220983243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/02/2020] [Indexed: 12/17/2022] Open
Abstract
Recurrent epithelial erosion and refractory corneal ulcer are the clinical features of diabetic keratopathy (DK), which eventually lead to corneal scar and visual disturbance. In this study, we sought to determine the abnormalities of cell junction in diabetic corneal epithelial cells and the effect of high glucose on the β-catenin/E-cadherin complex. Corneal histology showed that corneal epithelial cells of high glucose mice were loosely arranged, and the immunohistochemistry showed that the expression of E-cadherin decreased, the levels of β-catenin increased in nuclear. High glucose-induced degradation and endocytosis of E-cadherin of corneal epithelial cells reduce the formation of β-catenin/E-cadherin complex and promote the nuclear translocation of β-catenin. Moreover, high glucose also activated the transcription and expression of matrix metallopeptidase and snail, which interfered with the adhesion of corneal epithelial cells to the basement membrane. These findings reveal that DK is associated with the dissociation of cell junctions. The maintenance of the stability of the β-catenin/E-cadherin complex may be a potential therapeutic target of refractory corneal ulcers in patients with diabetes.
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Affiliation(s)
- Wenbei Ma
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Zhengyuan Xie
- Department of Neurosurgery, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen 529030, China
| | - Hui Chen
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Lina Zeng
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Xiaohong Chen
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Songfu Feng
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Xiaohe Lu
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
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13
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Hu J, Kang H, Chen H, Yao J, Yi X, Tang W, Wan M. Targeting neutrophil extracellular traps in severe acute pancreatitis treatment. Therap Adv Gastroenterol 2020; 13:1756284820974913. [PMID: 33281940 PMCID: PMC7692350 DOI: 10.1177/1756284820974913] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 10/26/2020] [Indexed: 02/05/2023] Open
Abstract
Severe acute pancreatitis (SAP) is a critical abdominal disease associated with high death rates. A systemic inflammatory response promotes disease progression, resulting in multiple organ dysfunction. The functions of neutrophils in the pathology of SAP have been presumed traditionally to be activation of chemokine and cytokine cascades accompanying the inflammatory process. Recently, since their discovery, a new type of antimicrobial mechanism, neutrophil extracellular traps (NETs), and their role in SAP, has attracted widespread attention from the scientific community. Significantly different from phagocytosis and degranulation, NETs kill extracellular microorganisms by releasing DNA fibers decorated with granular proteins. In addition to their strong antimicrobial functions, NETs participate in the pathophysiological process of many noninfectious diseases. In SAP, NETs injure normal tissues under inflammatory stress, which is associated with the activation of inflammatory cells, to cause an inflammatory cascade, and SAP products also trigger NET formation. Thus, due to the interaction between NET generation and SAP, a treatment targeting NETs might become a key point in SAP therapy. In this review, we summarize the mechanism of NETs in protecting the host from pathogen invasion, the stimulus that triggers NET formation, organ injury associated with SAP involving NETs, methods to interrupt the harmful effects of NETs, and different therapeutic strategies to preserve the organ function of patients with SAP by targeting NETs.
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Affiliation(s)
| | | | - Huan Chen
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jiaqi Yao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaolin Yi
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wenfu Tang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
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Wagner AE, Schwarzmayr T, Häberle B, Vokuhl C, Schmid I, von Schweinitz D, Kappler R. SP8 Promotes an Aggressive Phenotype in Hepatoblastoma via FGF8 Activation. Cancers (Basel) 2020; 12:cancers12082294. [PMID: 32824198 PMCID: PMC7465460 DOI: 10.3390/cancers12082294] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 12/16/2022] Open
Abstract
Hepatoblastoma (HB) is the most common malignant liver tumor in childhood and it generally has a good prognosis. However, if associated with aggressive metastatic disease, outcome is still poor. The molecular mechanisms leading to metastatic spread in HB patients are still unknown. By combining RNA-sequencing and a genome-wide methylome analysis, we identified the transcription factor SP8 and the growth factor FGF8 among the most strongly upregulated genes in metastatic HB cases, with a concomitant robust demethylation of the respective promoter regions. Of note, high expression of both candidates was associated with the aggressive C2 subtype of the 16-gene signature and poor survival. Chromatin immunoprecipitation revealed a direct transcriptional regulation of FGF8 through binding of SP8 to the FGF8 promoter. Gain- and loss-of-function experiments proved promoting effects of SP8 on motility, self-renewal, migration, and the invasive potential of HB cells. Moreover, stable overexpression of SP8 in Hep3B cells resulted in the acquisition of a mesenchymal phenotype and a strong upregulation of epithelial-mesenchymal transition-associated genes. Using KRAB-mediated CRISPR-dCas9 interference directed against FGF8, we could show that FGF8 is essential for the SP8-mediated aggressive tumor behavior. Treatment of HB cell lines with the pan SP family inhibitor mithramycin A resulted in a significant inhibition of their clonogenic growth. In summary, we identified SP8 and FGF8 as key players in aggressive traits of HB and propose SP8 inhibiting drugs as a new effective treatment strategy especially for metastatic tumors.
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Affiliation(s)
- Alexandra Elisabeth Wagner
- Department of Pediatric Surgery, Dr. von Hauner Children’s Hospital, Ludwig-Maximilians-University, 80337 Munich, Germany; (A.E.W.); (B.H.); (D.v.S.)
| | - Thomas Schwarzmayr
- Institute of Human Genetics, Helmholtz Center Munich, 85764 Neuherberg, Germany;
| | - Beate Häberle
- Department of Pediatric Surgery, Dr. von Hauner Children’s Hospital, Ludwig-Maximilians-University, 80337 Munich, Germany; (A.E.W.); (B.H.); (D.v.S.)
| | - Christian Vokuhl
- Institute of Pathology, University Hospital Bonn, 53127 Bonn, Germany;
| | - Irene Schmid
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Dr. von Hauner Children’s Hospital, Ludwig-Maximilians-University Munich, 80337 Munich, Germany;
| | - Dietrich von Schweinitz
- Department of Pediatric Surgery, Dr. von Hauner Children’s Hospital, Ludwig-Maximilians-University, 80337 Munich, Germany; (A.E.W.); (B.H.); (D.v.S.)
| | - Roland Kappler
- Department of Pediatric Surgery, Dr. von Hauner Children’s Hospital, Ludwig-Maximilians-University, 80337 Munich, Germany; (A.E.W.); (B.H.); (D.v.S.)
- Correspondence: ; Tel.: +49-89-4400-57810
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15
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Jinesh GG, Brohl AS. The genetic script of metastasis. Biol Rev Camb Philos Soc 2020; 95:244-266. [PMID: 31663259 DOI: 10.1111/brv.12562] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 01/24/2023]
Abstract
Metastasis is a pivotal event that changes the course of cancers from benign and treatable to malignant and difficult to treat, resulting in the demise of patients. Understanding the genetic control of metastasis is thus crucial to develop efficient and sustainable targeted therapies. Here we discuss the alterations in epigenetic mechanisms, transcription, chromosomal instability, chromosome imprinting, non-coding RNAs, coding RNAs, mutant RNAs, enhancers, G-quadruplexes, and copy number variation to dissect the genetic control of metastasis. We conclude that the genetic control of metastasis is predominantly executed through epithelial to mesenchymal transition and evasion of cell death. We discuss how genetic regulatory mechanisms can be harnessed for therapeutic purposes to achieve sustainable control over cancer metastasis.
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Affiliation(s)
- Goodwin G Jinesh
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A.,Sarcoma Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A
| | - Andrew S Brohl
- Sarcoma Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A.,Chemical Biology and Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A
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16
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Pang Q, Hu W, Zhang X, Pang M. Wnt/β-Catenin Signaling Pathway-Related Proteins (DKK-3, β-Catenin, and c-MYC) Are Involved in Prognosis of Nasopharyngeal Carcinoma. Cancer Biother Radiopharm 2019; 34:436-443. [PMID: 31025872 DOI: 10.1089/cbr.2019.2771] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The Wnt/β-catenin signaling pathway is one of the highly conserved signaling pathway widely reported to play essential roles in the development of various tumors and human cancers, thus serving as a potential target for anticancer therapy. However, the specific effects of the related proteins in the Wnt/β-catenin signaling pathway in nasopharyngeal carcinoma (NPC) still remain elusive. Thus, this study was performed to uncover the correlation between the Wnt/β-catenin signaling pathway-related proteins and the clinical characteristics and prognosis of NPC. NPC tissues were revealed to present high expression of β-catenin and v-myc myelocytomatosis viral oncogene homolog (c-MYC) but low expression of Dickkopf-3 (DKK-3). Immunohistochemical staining revealed that DKK-3 was positively linked to but β-catenin and c-MYC were negatively linked to differentiation, tumor-node-metastasis (TNM) stage and lymph node metastasis of patients with NPC. In addition, c-MYC was identified to be positively correlated to DKK-3 in NPC tissues. The positive expression of β-catenin and c-MYC had negative relations with and that of DKK-3 had positive relations with survival rate of patients with NPC, which was analyzed by Kaplan-Meier method. Moreover, it was shown that later TNM stage and positive expression of β-catenin were risk factors for NPC-related death. These findings provide evidence that the proteins related to the Wnt/β-catenin signaling pathway (DKK-3, β-catenin, and c-MYC) participate in the development of NPC and positive expression of DKK-3 and negative expression of β-catenin, and c-MYC can serve as essential prognostic biomarkers, shedding new light on the prognosis and treatment of NPC.
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Affiliation(s)
- Qiran Pang
- Department of ENT, The Affiliated Hospital of Qingdao University, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Wenting Hu
- Department of ENT, The Affiliated Hospital of Qingdao University, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Xinglin Zhang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Mingjie Pang
- Department of ENT, The Affiliated Hospital of Qingdao University, Qingdao Municipal Hospital, Qingdao, P.R. China
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17
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Currey N, Jahan Z, Caldon CE, Tran PN, Benthani F, De Lacavalerie P, Roden DL, Gloss BS, Campos C, Bean EG, Bullman A, Reibe-Pal S, Dinger ME, Febbraio MA, Clarke SJ, Dahlstrom JE, Kohonen-Corish MRJ. Mouse Model of Mutated in Colorectal Cancer Gene Deletion Reveals Novel Pathways in Inflammation and Cancer. Cell Mol Gastroenterol Hepatol 2019; 7:819-839. [PMID: 30831321 PMCID: PMC6476813 DOI: 10.1016/j.jcmgh.2019.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND & AIMS The early events by which inflammation promotes cancer are still not fully defined. The MCC gene is silenced by promoter methylation in colitis-associated and sporadic colon tumors, but its functional significance in precancerous lesions or polyps is not known. Here, we aimed to determine the impact of Mcc deletion on the cellular pathways and carcinogenesis associated with inflammation in the mouse proximal colon. METHODS We generated knockout mice with deletion of Mcc in the colonic/intestinal epithelial cells (MccΔIEC) or in the whole body (MccΔ/Δ). Drug-induced lesions were analyzed by transcriptome profiling (at 10 weeks) and histopathology (at 20 weeks). Cell-cycle phases and DNA damage proteins were analyzed by flow cytometry and Western blot of hydrogen peroxide-treated mouse embryo fibroblasts. RESULTS Transcriptome profiling of the lesions showed a strong response to colon barrier destruction, such as up-regulation of key inflammation and cancer-associated genes as well as 28 interferon γ-induced guanosine triphosphatase genes, including the homologs of Crohn's disease susceptibility gene IRGM. These features were shared by both Mcc-expressing and Mcc-deficient mice and many of the altered gene expression pathways were similar to the mesenchymal colorectal cancer subtype known as consensus molecular subtype 4 (CMS4). However, Mcc deletion was required for increased carcinogenesis in the lesions, with adenocarcinoma in 59% of MccΔIEC compared with 19% of Mcc-expressing mice (P = .002). This was not accompanied by hyperactivation of β-catenin, but Mcc deletion caused down-regulation of DNA repair genes and a disruption of DNA damage signaling. CONCLUSIONS Loss of Mcc may promote cancer through a failure to repair inflammation-induced DNA damage. We provide a comprehensive transcriptome data set of early colorectal lesions and evidence for the in vivo significance of MCC silencing in colorectal cancer.
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Affiliation(s)
- Nicola Currey
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - Zeenat Jahan
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - C Elizabeth Caldon
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Phuong N Tran
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Fahad Benthani
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Penelope De Lacavalerie
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Daniel L Roden
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Brian S Gloss
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | | | - Elaine G Bean
- ACT Pathology, The Canberra Hospital, Australian National University Medical School, Canberra, Australian Capital Territory, Australia
| | - Amanda Bullman
- ACT Pathology, The Canberra Hospital, Australian National University Medical School, Canberra, Australian Capital Territory, Australia
| | - Saskia Reibe-Pal
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - Marcel E Dinger
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Mark A Febbraio
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Stephen J Clarke
- Royal North Shore Hospital, University of Sydney, Sydney, New South Wales, Australia
| | - Jane E Dahlstrom
- ACT Pathology, The Canberra Hospital, Australian National University Medical School, Canberra, Australian Capital Territory, Australia
| | - Maija R J Kohonen-Corish
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia; School of Medicine, Western Sydney University, Sydney, New South Wales, Australia; Microbiome Research Centre, St George and Sutherland Clinical School, University of New South Wales, Sydney, New South Wales, Australia.
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18
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Zhang B, Lam EWF, Sun Y. Senescent cells: A new Achilles' heel to exploit for cancer medicine? Aging Cell 2019; 18:e12875. [PMID: 30450821 PMCID: PMC6351840 DOI: 10.1111/acel.12875] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/09/2018] [Accepted: 10/15/2018] [Indexed: 01/07/2023] Open
Abstract
Cellular senescence is a typical tumor‐suppressive mechanism that restricts the proliferation of premalignant cells. However, mounting evidence suggests that senescent cells, which also persist in vivo, can promote the incidence of aging‐related disorders principally via the senescence‐associated secretory phenotype (SASP), among which cancer is particularly devastating. Despite the beneficial effects of the SASP on certain physiological events such as wound healing and tissue repair, more studies have demonstrated that senescent cells can substantially contribute to pathological conditions and accelerate disease exacerbation, particularly cancer resistance, relapse and metastasis. To limit the detrimental properties while retaining the beneficial aspects of senescent cells, research advancements that support screening, design and optimization of anti‐aging therapeutic agents are in rapid progress in the setting of prospective development of clinical strategies, which together represent a new wave of efforts to control human malignancies or mitigate degenerative complications.
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Affiliation(s)
- Boyi Zhang
- Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institutes for Biological Sciences; University of Chinese Academy of Sciences, Chinese Academy of Sciences; Shanghai China
| | - Eric W.-F. Lam
- Department of Surgery and Cancer; Imperial College London; London UK
| | - Yu Sun
- Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institutes for Biological Sciences; University of Chinese Academy of Sciences, Chinese Academy of Sciences; Shanghai China
- Department of Medicine and VAPSHCS; University of Washington; Seattle Washington
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19
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Wang Y, Liu X, Guan G, Zhao W, Zhuang M. A Risk Classification System With Five-Gene for Survival Prediction of Glioblastoma Patients. Front Neurol 2019; 10:745. [PMID: 31379707 PMCID: PMC6646669 DOI: 10.3389/fneur.2019.00745] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 06/26/2019] [Indexed: 02/05/2023] Open
Abstract
Objective: Glioblastoma (GBM) is the most common and fatal primary brain tumor in adults. It is necessary to identify novel and effective biomarkers or risk signatures for GBM patients. Methods: Differentially expressed genes (DEGs) between GBM and low-grade glioma (LGG) in TCGA samples were screened out and weight correlation network analysis (WGCNA) was performed to confirm WHO grade-related genes. Five genes were selected via multivariate Cox proportional hazards regression analysis and were used to construct a risk signature. A nomogram composed of the risk signature and clinical characters (age, radiotherapy, and chemotherapy experience) was established to predict 1, 3, 5-year survival rate for GBM patients. Results: One hundred ninety-four DEGs in blue gene module were found to be positively related to WHO grade via WGCNA. Five genes (DES, RANBP17, CLEC5A, HOXC11, POSTN) were selected to construct a risk signature for GBM via R language. This risk signature was identified to independently predict the outcome of GBM patients, as well as stratified by IDH1 status, MGMT promoter status, and radio-chemotherapy. The nomogram was established which combined the risk signature with clinical factors. The results of c-index, ROC curve and calibration plot revealed the nomogram showing a good accuracy for predicting 1, 3, or 5-year survival of GBM patients. Conclusion: The risk signature with five genes could serve as an independent factor for predicting the prognosis of patients with GBM. Moreover, the nomogram with the risk signature and clinical traits proved to perform better for predicting 1, 3, 5-year survival rate.
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Affiliation(s)
- Yulin Wang
- Department of Neurosurgery, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Xin Liu
- Department of Stomatology, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Gefei Guan
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, China
| | - Weijiang Zhao
- Center for Neuroscience, Shantou University Medical College, Shantou, China
- *Correspondence: Weijiang Zhao
| | - Minghua Zhuang
- Department of Neurosurgery, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
- Minghua Zhuang
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20
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Wu SY, Huang YJ, Tzeng YM, Huang CYF, Hsiao M, Wu ATH, Huang TH. Destruxin B Suppresses Drug-Resistant Colon Tumorigenesis and Stemness Is Associated with the Upregulation of miR-214 and Downregulation of mTOR/β-Catenin Pathway. Cancers (Basel) 2018; 10:cancers10100353. [PMID: 30257507 PMCID: PMC6209980 DOI: 10.3390/cancers10100353] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/18/2018] [Accepted: 09/22/2018] [Indexed: 12/12/2022] Open
Abstract
Background: Drug resistance represents a major challenge for treating patients with colon cancer. Accumulating evidence suggests that Insulin-like growth factor (IGF)-associated signaling promotes colon tumorigenesis and cancer stemness. Therefore, the identification of agents, which can disrupt cancer stemness signaling, may provide improved therapeutic efficacy. Methods: Mimicking the tumor microenvironment, we treated colon cancer cells with exogenous IGF1. The increased stemness of IGF1-cultured cells was determined by ALDH1 activity, side-population, tumor sphere formation assays. Destruxin B (DB) was evaluated for its anti-tumorigenic and stemness properties using cellular viability, colony-formation tests. The mimic and inhibitor of miR-214 were used to treat colon cancer cells to show its functional association to DB treatment. In vivo mouse models were used to evaluate DB’s ability to suppress colon tumor-initiating ability and growth inhibitory function. Results: IGF1-cultured colon cancer cells showed a significant increase in 5-FU resistance and enhanced stemness properties, including an increased percentage of ALDH1+, side-population cells, tumor sphere generation in vitro, and increased tumor initiation in vivo. In support, using public databases showed that increased IGF1 expression was significantly associated with a poorer prognosis in patients with colon cancer. DB, a hexadepsipeptide mycotoxin, was able to suppress colon tumorigenic phenotypes, including colony and sphere formation. The sequential treatment of DB, followed by 5-FU, synergistically inhibited the viability of colon cancer cells. In vivo studies showed that DB suppressed the tumorigenesis by 5-FU resistant colon cells, and in a greater degree when combined with 5-FU. Mechanistically, DB treatment was associated with decreased the mammalian target of rapamycin (mTOR) and β-catenin expression and an increased miR-214 level. Conclusion: We provided evidence of DB as a potential therapeutic agent for overcoming 5-FU resistance induced by IGF1, and suppressing cancer stem-like properties in association with miR-214 regulation. Further investigation is warranted for its translation to clinical application.
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Affiliation(s)
- Szu-Yuan Wu
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Yan-Jiun Huang
- Division of Colorectal Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Yew-Min Tzeng
- Department of Life Science, National Taitung University, Taitung 950, Taiwan.
| | - Chi-Ying F Huang
- Institute of Biopharmaceutical Sciences, National Yang Ming University, Taipei 112, Taiwan.
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.
| | - Alexander T H Wu
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 115, Taiwan.
- Graduate Institute of Medical Sciences, National Defence Medical Center, Taipei 114, Taiwan.
| | - Tse-Hung Huang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung 204, Taiwan.
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan 204 Taiwan.
- School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei 23741, Taiwan.
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