1
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Wegmann R, Bankel L, Festl Y, Lau K, Lee S, Arnold F, Cappelletti V, Fehr A, Picotti P, Dedes KJ, Franzen D, Lenggenhager D, Bode PK, Zoche M, Moch H, Britschgi C, Snijder B. Molecular and functional landscape of malignant serous effusions for precision oncology. Nat Commun 2024; 15:8544. [PMID: 39358333 PMCID: PMC11447229 DOI: 10.1038/s41467-024-52694-8] [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: 06/14/2024] [Accepted: 09/12/2024] [Indexed: 10/04/2024] Open
Abstract
Personalized treatment for patients with advanced solid tumors critically depends on the deep characterization of tumor cells from patient biopsies. Here, we comprehensively characterize a pan-cancer cohort of 150 malignant serous effusion (MSE) samples at the cellular, molecular, and functional level. We find that MSE-derived cancer cells retain the genomic and transcriptomic profiles of their corresponding primary tumors, validating their use as a patient-relevant model system for solid tumor biology. Integrative analyses reveal that baseline gene expression patterns relate to global ex vivo drug sensitivity, while high-throughput drug-induced transcriptional changes in MSE samples are indicative of drug mode of action and acquired treatment resistance. A case study exemplifies the added value of multi-modal MSE profiling for patients who lack genetically stratified treatment options. In summary, our study provides a functional multi-omics view on a pan-cancer solid tumor cohort and underlines the feasibility and utility of MSE-based precision oncology.
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Affiliation(s)
- Rebekka Wegmann
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Lorenz Bankel
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
| | - Yasmin Festl
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Kate Lau
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Sohyon Lee
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Fabian Arnold
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Valentina Cappelletti
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Aaron Fehr
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Paola Picotti
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Konstantin J Dedes
- Department of Gynecology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Franzen
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
| | - Daniela Lenggenhager
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Peter K Bode
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Martin Zoche
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Holger Moch
- Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
- University of Zurich, Zurich, Switzerland
| | - Christian Britschgi
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
- Medical Oncology and Hematology, Cantonal Hospital Winterthur, Winterthur, Switzerland
| | - Berend Snijder
- Institute of Molecular Systems Biology, Department of Biology, ETH Zurich, Zurich, Switzerland.
- Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland.
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland.
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2
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Jiang H, Deng L, Lin Z, Yang K, Yang J, Zhao W, Gong W. GSDMB interacts with IGF2BP1 to suppress colorectal cancer progression by modulating DUSP6-ERK pathway. Int Immunopharmacol 2024; 143:113280. [PMID: 39353395 DOI: 10.1016/j.intimp.2024.113280] [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: 08/22/2024] [Revised: 09/21/2024] [Accepted: 09/26/2024] [Indexed: 10/04/2024]
Abstract
There is growing evidence that the protein family of Gasdermins (GSDMs) play an essential role during the progression of colorectal cancer (CRC). However, it is not completely clear that how GSDMB, abundantly expressed in epithelial cells of gastrointestinal tract, regulates the tumorigenesis of CRC. A wealth of evidence linking GSDMB to the pathogenesis of cancer has come from genome-wide association studies. Here, we provide evidence that aberrantly upregulated GSDMB is responsible for suppressing the CRC progression by using in vitro cell and intestinal organoid, as well as in vivo GSDMB transgenic mice models. Mechanistically, GSDMB interacts with insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1), which directly binds to and recognizes the 3'-UTR of dual specificity phosphatase 6 (DUSP6) mRNA, enhances the translation of DUSP6 protein and inhibits downstream ERK phosphorylation, thereby facilitating cell death and restraining cell proliferation. Our results suggest that GSDMB has potential as a novel therapeutic target for CRC treatment.
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Affiliation(s)
- Haiyang Jiang
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China; BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Liting Deng
- School of Medicine, Southeast University, Nanjing 210009, China
| | - Zexing Lin
- BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Kui Yang
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Jun Yang
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Wei Zhao
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Wenbin Gong
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.
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Glass MR, Waxman EA, Yamashita S, Lafferty M, Beltran AA, Farah T, Patel NK, Singla R, Matoba N, Ahmed S, Srivastava M, Drake E, Davis LT, Yeturi M, Sun K, Love MI, Hashimoto-Torii K, French DL, Stein JL. Cross-site reproducibility of human cortical organoids reveals consistent cell type composition and architecture. Stem Cell Reports 2024; 19:1351-1367. [PMID: 39178845 PMCID: PMC11411306 DOI: 10.1016/j.stemcr.2024.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/26/2024] Open
Abstract
While guided human cortical organoid (hCO) protocols reproducibly generate cortical cell types at one site, variability in hCO phenotypes across sites using a harmonized protocol has not yet been evaluated. To determine the cross-site reproducibility of hCO differentiation, three independent research groups assayed hCOs in multiple differentiation replicates from one induced pluripotent stem cell (iPSC) line using a harmonized miniaturized spinning bioreactor protocol across 3 months. hCOs were mostly cortical progenitor and neuronal cell types in reproducible proportions that were consistently organized in cortical wall-like buds. Cross-site differences were detected in hCO size and expression of metabolism and cellular stress genes. Variability in hCO phenotypes correlated with stem cell gene expression prior to differentiation and technical factors associated with seeding, suggesting iPSC quality and treatment are important for differentiation outcomes. Cross-site reproducibility of hCO cell type proportions and organization encourages future prospective meta-analytic studies modeling neurodevelopmental disorders in hCOs.
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Affiliation(s)
- Madison R Glass
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Elisa A Waxman
- Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Satoshi Yamashita
- Center for Neuroscience Research, Children's National Hospital, Washington, DC, USA
| | - Michael Lafferty
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alvaro A Beltran
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Tala Farah
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Niyanta K Patel
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Rubal Singla
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nana Matoba
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Sara Ahmed
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Mary Srivastava
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Emma Drake
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Liam T Davis
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Meghana Yeturi
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kexin Sun
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michael I Love
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kazue Hashimoto-Torii
- Center for Neuroscience Research, Children's National Hospital, Washington, DC, USA; Departments of Pediatrics, and Pharmacology & Physiology, School of Medicine and Health Sciences, The George Washington University, Washington, DC, USA
| | - Deborah L French
- Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jason L Stein
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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Laragione T, Harris C, Rice N, Gulko PS. DUSP6 deletion protects mice and reduces disease severity in autoimmune arthritis. iScience 2024; 27:110158. [PMID: 38974475 PMCID: PMC11225809 DOI: 10.1016/j.isci.2024.110158] [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: 02/22/2024] [Revised: 04/26/2024] [Accepted: 05/28/2024] [Indexed: 07/09/2024] Open
Abstract
Receptor tyrosine kinases (RTKs) have an important role in arthritis severity and in models of rheumatoid arthritis (RA), but their regulation is not fully understood. The dual specificity phosphatase 6 (DUSP6) has been implicated in the regulation of RTK signaling, but never in the context of arthritis and autoimmunity. We used the KRN serum-induced arthritis (KSIA) model of RA and showed that DUSP6-/- mice were protected and had a 50% lower maximum arthritis score (p = 0.006) and reduced joint damage than C57BL/6 DUSP6+/+ controls. Serum levels of interleukin (IL) 10 were significantly increased (>2-fold), and IL6 decreased in DUSP6-/- mice. DUSP6-/- mice had increased numbers of IL10+ cells including Tr1 regulatory cells (p < 0.01). Introduction of the IL10-/- into DUSP6-/- (double knockout [KO]) reversed the DUSP6-/- protection. In conclusion, this study reports a pro-arthritic role for DUSP6. This discovery has the potential to generate a previously unknown target for therapies for RA and inflammatory diseases.
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Affiliation(s)
- Teresina Laragione
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Carolyn Harris
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Natasha Rice
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Percio S. Gulko
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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5
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Hosseinpour Z, Rezaei Tavirani M, Esmaeil Akbari M. Integrated Analysis of Multi-Omic Data Reveals Regulatory Mechanisms and Network Characteristics in Breast Cancer. Med J Islam Repub Iran 2024; 38:63. [PMID: 39399614 PMCID: PMC11469691 DOI: 10.47176/mjiri.38.63] [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: 08/12/2023] [Indexed: 10/15/2024] Open
Abstract
Background Breast cancer is a complex and heterogeneous disease, and understanding its regulatory mechanisms and network characteristics is essential for identifying therapeutic targets and developing effective treatment strategies. This study aimed to unravel the intricate network of interactions involving differentially expressed genes, microribonucleic acid (miRNAs), and proteins in breast cancer through an integrative analysis of multi-omic data from Cancer Genome Atlas Breast Invasive Carcinoma (TCGA-BRCA) dataset. Methods The TCGA-BRCA dataset was used for data acquisition, which included RNA sequencing data for gene expression, miRNA sequencing data for miRNA expression, and protein expression quantification data. Various R packages, such as TCGAbiolinks, limma, and RPPA, were employed for data preprocessing and integration. Differential expression analysis, network construction, miRNA regulation exploration, pathway enrichment analysis, and independent dataset validation were performed. Results Eight consistently upregulated hub genes-including ACTB, HSP90AA1, FN1, HSPA8, CDC42, CDH1, UBC, and EP300-were identified in breast cancer, indicating their potential significance in driving the disease. Pathway enrichment analysis revealed highly enriched pathways in breast cancer, including proteoglycans in cancer, PI3K-Akt, and mitogen-activated protein kinase signaling. Conclusion This integrated multi-omic data analysis provides valuable insights into the regulatory mechanisms, network characteristics, and functional roles of genes, miRNAs, and proteins in breast cancer. The findings contribute to our understanding of the molecular landscape of breast cancer, facilitate the identification of potential therapeutic targets, and inform strategies for effective treatment.
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Affiliation(s)
- Zahra Hosseinpour
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Rezaei Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Esmaeil Akbari
- Surgical Oncology, Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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6
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Degitz C, Reime S, Baumbach CM, Rauschner M, Thews O. Modulation of mitochondrial function by extracellular acidosis in tumor cells and normal fibroblasts: Role of signaling pathways. Neoplasia 2024; 52:100999. [PMID: 38631214 PMCID: PMC11036092 DOI: 10.1016/j.neo.2024.100999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
In many tumors pronounced extracellular acidosis resulting from glycolytic metabolism is found. Since several environmental stress factors affect the mitochondrial activity the aim of the study was to analyze the impact of acidosis on cellular oxygen consumption and which signaling pathways may be involved in the regulation. In two tumor cell lines and normal fibroblasts cellular oxygen consumption rate (OCR) and mitochondrial function were measured after 3 h at pH 6.6. Besides the activation of ERK1/2, p38 and PI3K signaling in the cytosolic and mitochondrial compartment, the mitochondrial structure and proteins related to mitochondria fission were analyzed. The acidic extracellular environment increased OCR in tumor cells but not in fibroblasts. In parallel, the mitochondrial membrane potential increased at low pH. In both tumor lines (but not in fibroblasts), the phosphorylation of ERK1/2 and PI3K/Akt was significantly increased, and both cascades were involved in OCR modulation. The activation of signaling pathways was located predominantly in the mitochondrial compartment of the cells. At low pH, the mitochondrial structure in tumor cells showed structural changes related to elongation whereas mitochondria fragmentation was reduced indicating mitochondria fusion. However, these morphological changes were not related to ERK1/2 or PI3K signaling. Acidic stress seems to induce an increased oxygen consumption, which might further aggravate tumor hypoxia. Low pH also induces mitochondria fusion that is not mediated by ERK1/2 or PI3K signaling. The mechanism by which these signaling cascades modulate the respiratory activity of tumor cells needs further investigation.
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Affiliation(s)
- Carmen Degitz
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Sarah Reime
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Christina-Marie Baumbach
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Mandy Rauschner
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Oliver Thews
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany.
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7
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Eguchi A, Olsen JV. Phosphoproteomic investigation of targets of protein phosphatases in EGFR signaling. Sci Rep 2024; 14:7908. [PMID: 38575675 PMCID: PMC10995159 DOI: 10.1038/s41598-024-58619-1] [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: 02/06/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024] Open
Abstract
Receptor tyrosine kinases (RTKs) initiate cellular signaling pathways, which are regulated through a delicate balance of phosphorylation and dephosphorylation events. While many studies of RTKs have focused on downstream-activated kinases catalyzing the site-specific phosphorylation, few studies have focused on the phosphatases carrying out the dephosphorylation. In this study, we analyzed six protein phosphatase networks using chemical inhibitors in context of epidermal growth factor receptor (EGFR) signaling by mass spectrometry-based phosphoproteomics. Specifically, we focused on protein phosphatase 2C (PP2C), involved in attenuating p38-dependent signaling pathways in various cellular responses, and confirmed its effect in regulating p38 activity in EGFR signaling. Furthermore, utilizing a p38 inhibitor, we classified phosphosites whose phosphorylation status depends on PP2C inhibition into p38-dependent and p38-independent sites. This study provides a large-scale dataset of phosphatase-regulation of EGF-responsive phosphorylation sites, which serves as a useful resource to deepen our understanding of EGFR signaling.
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Affiliation(s)
- Akihiro Eguchi
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark.
| | - Jesper V Olsen
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark.
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8
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Chen PC, Tsai TP, Liao YC, Liao YC, Cheng HW, Weng YH, Lin CM, Kao CY, Tai CC, Ruan JW. Intestinal dual-specificity phosphatase 6 regulates the cold-induced gut microbiota remodeling to promote white adipose browning. NPJ Biofilms Microbiomes 2024; 10:22. [PMID: 38480743 PMCID: PMC10937957 DOI: 10.1038/s41522-024-00495-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/29/2024] [Indexed: 03/17/2024] Open
Abstract
Gut microbiota rearrangement induced by cold temperature is crucial for browning in murine white adipose tissue. This study provides evidence that DUSP6, a host factor, plays a critical role in regulating cold-induced gut microbiota rearrangement. When exposed to cold, the downregulation of intestinal DUSP6 increased the capacity of gut microbiota to produce ursodeoxycholic acid (UDCA). The DUSP6-UDCA axis is essential for driving Lachnospiraceae expansion in the cold microbiota. In mice experiencing cold-room temperature (CR) transitions, prolonged DUSP6 inhibition via the DUSP6 inhibitor (E/Z)-BCI maintained increased cecal UDCA levels and cold-like microbiota networks. By analyzing DUSP6-regulated microbiota dynamics in cold-exposed mice, we identified Marvinbryantia as a genus whose abundance increased in response to cold exposure. When inoculated with human-origin Marvinbryantia formatexigens, germ-free recipient mice exhibited significantly enhanced browning phenotypes in white adipose tissue. Moreover, M. formatexigens secreted the methylated amino acid Nε-methyl-L-lysine, an enriched cecal metabolite in Dusp6 knockout mice that reduces adiposity and ameliorates nonalcoholic steatohepatitis in mice. Our work revealed that host-microbiota coadaptation to cold environments is essential for regulating the browning-promoting gut microbiome.
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Affiliation(s)
- Pei-Chen Chen
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Tzu-Pei Tsai
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yi-Chu Liao
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, 35053, Taiwan
| | - Yu-Chieh Liao
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, 35053, Taiwan
| | - Hung-Wei Cheng
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, 35053, Taiwan
| | - Yi-Hsiu Weng
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Chiao-Mei Lin
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | - Cheng-Yuan Kao
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | | | - Jhen-Wei Ruan
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan.
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan.
- Research Center for Medical Laboratory Biotechnology, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan.
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9
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Hamdin CD, Wu ML, Chen CM, Ho YC, Jiang WC, Gung PY, Ho HH, Chuang HC, Tan TH, Yet SF. Dual-Specificity Phosphatase 6 Deficiency Attenuates Arterial-Injury-Induced Intimal Hyperplasia in Mice. Int J Mol Sci 2023; 24:17136. [PMID: 38138967 PMCID: PMC10742470 DOI: 10.3390/ijms242417136] [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: 10/25/2023] [Revised: 11/29/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
In response to injury, vascular smooth muscle cells (VSMCs) of the arterial wall dedifferentiate into a proliferative and migratory phenotype, leading to intimal hyperplasia. The ERK1/2 pathway participates in cellular proliferation and migration, while dual-specificity phosphatase 6 (DUSP6, also named MKP3) can dephosphorylate activated ERK1/2. We showed that DUSP6 was expressed in low baseline levels in normal arteries; however, arterial injury significantly increased DUSP6 levels in the vessel wall. Compared with wild-type mice, Dusp6-deficient mice had smaller neointima. In vitro, IL-1β induced DUSP6 expression and increased VSMC proliferation and migration. Lack of DUSP6 reduced IL-1β-induced VSMC proliferation and migration. DUSP6 deficiency did not affect IL-1β-stimulated ERK1/2 activation. Instead, ERK1/2 inhibitor U0126 prevented DUSP6 induction by IL-1β, indicating that ERK1/2 functions upstream of DUSP6 to regulate DUSP6 expression in VSMCs rather than downstream as a DUSP6 substrate. IL-1β decreased the levels of cell cycle inhibitor p27 and cell-cell adhesion molecule N-cadherin in VSMCs, whereas lack of DUSP6 maintained their high levels, revealing novel functions of DUSP6 in regulating these two molecules. Taken together, our results indicate that lack of DUSP6 attenuated neointima formation following arterial injury by reducing VSMC proliferation and migration, which were likely mediated via maintaining p27 and N-cadherin levels.
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Affiliation(s)
- Candra D. Hamdin
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350401, Taiwan; (C.D.H.); (P.-Y.G.); (H.-H.H.)
- National Health Research Institutes and Department of Life Sciences, National Central University Joint Ph.D. Program in Biomedicine, Zhongli District, Taoyuan 320317, Taiwan
| | - Meng-Ling Wu
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA; (M.-L.W.); (Y.-C.H.)
| | - Chen-Mei Chen
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350401, Taiwan; (C.D.H.); (P.-Y.G.); (H.-H.H.)
| | - Yen-Chun Ho
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA; (M.-L.W.); (Y.-C.H.)
| | - Wei-Cheng Jiang
- Department of Anatomy and Cell Biology, College of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan;
| | - Pei-Yu Gung
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350401, Taiwan; (C.D.H.); (P.-Y.G.); (H.-H.H.)
| | - Hua-Hui Ho
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350401, Taiwan; (C.D.H.); (P.-Y.G.); (H.-H.H.)
| | - Huai-Chia Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan 350401, Taiwan; (H.-C.C.); (T.-H.T.)
| | - Tse-Hua Tan
- Immunology Research Center, National Health Research Institutes, Zhunan 350401, Taiwan; (H.-C.C.); (T.-H.T.)
| | - Shaw-Fang Yet
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350401, Taiwan; (C.D.H.); (P.-Y.G.); (H.-H.H.)
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404328, Taiwan
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10
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Liu N, Li C, Shang Q, Qi J, Li Q, Deng J, Dan H, Xie L, Chen Q. Angelicin inhibits cell growth and promotes apoptosis in oral squamous cell carcinoma by negatively regulating DUSP6/cMYC signaling pathway. Exp Cell Res 2023; 432:113793. [PMID: 37741490 DOI: 10.1016/j.yexcr.2023.113793] [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: 07/08/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 09/25/2023]
Abstract
Angelicin has been reported to have antitumor effects on many types of cancer. However, few studies on angelicin in oral squamous cell carcinoma (OSCC) have been performed. We performed cell cycle and apoptosis analyses to assess the effect of angelicin on OSCC cells. We conducted RNA-seq studies to reveal differentially expressed genes (DEGs). Dual-specificity phosphatase 6 (DUSP6) and c-MYC were strongly down-regulated differential genes. Silencing RNA (siRNA) was used to knockdown DUSP6. The mouse xenograft model was used to mimic OSCC. Angelicin inhibited OSCC in vitro. We found that DUSP6 interacted with c-MYC. DUSP6 knockdown group and DUSP6 knockdown + angelicin group had similar effects of OSCC cells. Angelicin could reduce tumor formation, DUSP6, and c-MYC expression in vivo. Compared with paclitaxel, the tumor inhibition effect of the two drugs was similar. However, angelicin did not cause weight loss and had lower toxicity. In sum, Angelicin has antitumor effects on OSCC in vitro and vivo by negatively regulating the DUSP6 mediated c-MYC signaling pathway.
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Affiliation(s)
- Na Liu
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Periodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou 510182, China
| | - Chunyu Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qianhui Shang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jiajia Qi
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qionghua Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jing Deng
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Hongxia Dan
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Liang Xie
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
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11
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Song HY, Deng ML, Yang JF, Ma J, Shu FF, Cheng WJ, Zhu XQ, Zou FC, He JJ. Transcriptomic, 16S ribosomal ribonucleic acid and network pharmacology analyses shed light on the anticoccidial mechanism of green tea polyphenols against Eimeria tenella infection in Wuliangshan black-boned chickens. Parasit Vectors 2023; 16:330. [PMID: 37726789 PMCID: PMC10510215 DOI: 10.1186/s13071-023-05922-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: 06/03/2023] [Accepted: 08/09/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND Eimeria tenella is an obligate intracellular parasitic protozoan that invades the chicken cecum and causes coccidiosis, which induces acute lesions and weight loss. Elucidating the anticoccidial mechanism of action of green tea polyphenols could aid the development of anticoccidial drugs and resolve the problem of drug resistance in E. tenella. METHODS We constructed a model of E. tenella infection in Wuliangshan black-boned chickens, an indigenous breed of Yunnan Province, China, to study the efficacy of green tea polyphenols against the infection. Alterations in gene expression and in the microbial flora in the cecum were analyzed by ribonucleic acid (RNA) sequencing and 16S ribosomal RNA (rRNA) sequencing. Quantitative real-time polymerase chain reaction was used to verify the host gene expression data obtained by RNA sequencing. Network pharmacology and molecular docking were used to clarify the interactions between the component green tea polyphenols and the targeted proteins; potential anticoccidial herbs were also analyzed. RESULTS Treatment with the green tea polyphenols led to a reduction in the lesion score and weight loss of the chickens induced by E. tenella infection. The expression of matrix metalloproteinase 7 (MMP7), MMP1, nitric oxide synthase 2 and ephrin type-A receptor 2 was significantly altered in the E. tenella infection plus green tea polyphenol-treated group and in the E. tenella infection group compared with the control group; these genes were also predicted targets of tea polyphenols. Furthermore, the tea polyphenol (-)-epigallocatechin gallate acted on most of the targets, and the molecular docking analysis showed that it has good affinity with interferon induced with helicase C domain 1 protein. 16S ribosomal RNA sequencing showed that the green tea polyphenols had a regulatory effect on changes in the fecal microbiota induced by E. tenella infection. In total, 171 herbs were predicted to act on two or three targets in MMP7, MMP1, nitric oxide synthase 2 and ephrin type-A receptor 2. CONCLUSIONS Green tea polyphenols can directly or indirectly regulate host gene expression and alter the growth of microbiota. The results presented here shed light on the mechanism of action of green tea polyphenols against E. tenella infection in chickens, and have implications for the development of novel anticoccidial products.
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Affiliation(s)
- Hai-Yang Song
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Meng-Ling Deng
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Jian-Fa Yang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Jun Ma
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Fan-Fan Shu
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Wen-Jie Cheng
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Xing-Quan Zhu
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, People's Republic of China
| | - Feng-Cai Zou
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China.
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China.
| | - Jun-Jun He
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China.
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12
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Kesarwani M, Kincaid Z, Azhar M, Menke J, Schwieterman J, Ansari S, Reaves A, Deininger ME, Levine R, Grimes HL, Azam M. MAPK-negative feedback regulation confers dependence to JAK2 V617F signaling. Leukemia 2023; 37:1686-1697. [PMID: 37430058 PMCID: PMC10976185 DOI: 10.1038/s41375-023-01959-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 06/11/2023] [Accepted: 06/27/2023] [Indexed: 07/12/2023]
Abstract
Despite significant advances in developing selective JAK2 inhibitors, JAK2 kinase inhibitor (TKI) therapy is ineffective in suppressing the disease. Reactivation of compensatory MEK-ERK and PI3K survival pathways sustained by inflammatory cytokine signaling causes treatment failure. Concomitant inhibition of MAPK pathway and JAK2 signaling showed improved in vivo efficacy compared to JAK2 inhibition alone but lacked clonal selectivity. We hypothesized that cytokine signaling in JAK2V617F induced MPNs increases the apoptotic threshold that causes TKI persistence or refractoriness. Here, we show that JAK2V617F and cytokine signaling converge to induce MAPK negative regulator, DUSP1. Enhanced DUSP1 expression blocks p38 mediated p53 stabilization. Deletion of Dusp1 increases p53 levels in the context of JAK2V617F signaling that causes synthetic lethality to Jak2V617F expressing cells. However, inhibition of Dusp1 by a small molecule inhibitor (BCI) failed to impart Jak2V617F clonal selectivity due to pErk1/2 rebound caused by off-target inhibition of Dusp6. Ectopic expression of Dusp6 and BCI treatment restored clonal selectively and eradicated the Jak2V617F cells. Our study shows that inflammatory cytokines and JAK2V617F signaling converge to induce DUSP1, which downregulates p53 and establishes a higher apoptotic threshold. These data suggest that selectively targeting DUSP1 may provide a curative response in JAK2V617F-driven MPN.
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Affiliation(s)
- Meenu Kesarwani
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Zachary Kincaid
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Mohammad Azhar
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Jacob Menke
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | | | - Sekhu Ansari
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Angela Reaves
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Michael E Deininger
- Versiti Blood Research Institute and Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ross Levine
- Center for Hematologic Malignancies, and Molecular Cancer Medicine Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - H Leighton Grimes
- Division of Immunobiology, Cincinnati Children's Hospital, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati, Cincinnati, OH, USA
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Mohammad Azam
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, OH, USA.
- Department of Pediatrics, University of Cincinnati, Cincinnati, OH, USA.
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital, Cincinnati, OH, USA.
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13
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Glass MR, Waxman EA, Yamashita S, Lafferty M, Beltran A, Farah T, Patel NK, Matoba N, Ahmed S, Srivastava M, Drake E, Davis LT, Yeturi M, Sun K, Love MI, Hashimoto-Torii K, French DL, Stein JL. Cross-site reproducibility of human cortical organoids reveals consistent cell type composition and architecture. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.28.550873. [PMID: 37546772 PMCID: PMC10402155 DOI: 10.1101/2023.07.28.550873] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Background Reproducibility of human cortical organoid (hCO) phenotypes remains a concern for modeling neurodevelopmental disorders. While guided hCO protocols reproducibly generate cortical cell types in multiple cell lines at one site, variability across sites using a harmonized protocol has not yet been evaluated. We present an hCO cross-site reproducibility study examining multiple phenotypes. Methods Three independent research groups generated hCOs from one induced pluripotent stem cell (iPSC) line using a harmonized miniaturized spinning bioreactor protocol. scRNA-seq, 3D fluorescent imaging, phase contrast imaging, qPCR, and flow cytometry were used to characterize the 3 month differentiations across sites. Results In all sites, hCOs were mostly cortical progenitor and neuronal cell types in reproducible proportions with moderate to high fidelity to the in vivo brain that were consistently organized in cortical wall-like buds. Cross-site differences were detected in hCO size and morphology. Differential gene expression showed differences in metabolism and cellular stress across sites. Although iPSC culture conditions were consistent and iPSCs remained undifferentiated, primed stem cell marker expression prior to differentiation correlated with cell type proportions in hCOs. Conclusions We identified hCO phenotypes that are reproducible across sites using a harmonized differentiation protocol. Previously described limitations of hCO models were also reproduced including off-target differentiations, necrotic cores, and cellular stress. Improving our understanding of how stem cell states influence early hCO cell types may increase reliability of hCO differentiations. Cross-site reproducibility of hCO cell type proportions and organization lays the foundation for future collaborative prospective meta-analytic studies modeling neurodevelopmental disorders in hCOs.
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Affiliation(s)
- Madison R Glass
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Elisa A Waxman
- Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA
| | - Satoshi Yamashita
- Center for Neuroscience Research, Children's National Hospital, Washington, DC
| | - Michael Lafferty
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Alvaro Beltran
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Tala Farah
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Niyanta K Patel
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Nana Matoba
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Sara Ahmed
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Mary Srivastava
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Emma Drake
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Liam T Davis
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Meghana Yeturi
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Kexin Sun
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Michael I Love
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Departments of Pediatrics, and Pharmacology & Physiology, School of Medicine and Health Sciences, The George Washington University, Washington, DC
| | - Kazue Hashimoto-Torii
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA
| | - Deborah L French
- Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jason L Stein
- UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC
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Zhang Z, Chen Y, Zheng L, Du J, Wei S, Zhu X, Xiong JW. A DUSP6 inhibitor suppresses inflammatory cardiac remodeling and improves heart function after myocardial infarction. Dis Model Mech 2023; 16:285836. [PMID: 36478044 PMCID: PMC9789401 DOI: 10.1242/dmm.049662] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 11/13/2022] [Indexed: 12/12/2022] Open
Abstract
Acute myocardial infarction (MI) results in loss of cardiomyocytes and abnormal cardiac remodeling with severe inflammation and fibrosis. However, how cardiac repair can be achieved by timely resolution of inflammation and cardiac fibrosis remains incompletely understood. Our previous findings have shown that dual-specificity phosphatase 6 (DUSP6) is a regeneration repressor from zebrafish to rats. In this study, we found that intravenous administration of the DUSP6 inhibitor (E)-2-benzylidene-3-(cyclohexylamino)-2,3-dihydro-1H-inden-1-one (BCI) improved heart function and reduced cardiac fibrosis in MI rats. Mechanistic analysis revealed that BCI attenuated macrophage inflammation through NF-κB and p38 signaling, independent of DUSP6 inhibition, leading to the downregulation of various cytokines and chemokines. In addition, BCI suppressed differentiation-related signaling pathways and decreased bone-marrow cell differentiation into macrophages through inhibiting DUSP6. Furthermore, intramyocardial injection of poly (D, L-lactic-co-glycolic acid)-loaded BCI after MI had a notable effect on cardiac repair. In summary, BCI improves heart function and reduces abnormal cardiac remodeling by inhibiting macrophage formation and inflammation post-MI, thus providing a promising pro-drug candidate for the treatment of MI and related heart diseases. This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Zongwang Zhang
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
- Peking University-Nanjing Institute of Translational Medicine, Nanjing 211800, China
| | - Yang Chen
- Peking University-Nanjing Institute of Translational Medicine, Nanjing 211800, China
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Lixia Zheng
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
- Peking University-Nanjing Institute of Translational Medicine, Nanjing 211800, China
| | - Jianyong Du
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
- Peking University-Nanjing Institute of Translational Medicine, Nanjing 211800, China
| | - Shicheng Wei
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Xiaojun Zhu
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
- Peking University-Nanjing Institute of Translational Medicine, Nanjing 211800, China
- Authors for correspondence (; )
| | - Jing-Wei Xiong
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
- Peking University-Nanjing Institute of Translational Medicine, Nanjing 211800, China
- Authors for correspondence (; )
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15
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Kalmari A, Hosseinzadeh Colagar A, Heydari M, Arash V. Missense polymorphisms potentially involved in mandibular prognathism. J Oral Biol Craniofac Res 2023; 13:453-460. [PMID: 37228872 PMCID: PMC10203774 DOI: 10.1016/j.jobcr.2023.05.007] [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: 08/13/2022] [Revised: 03/18/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023] Open
Abstract
Objective The current study aimed to identify and analyze missense single nucleotide polymorphisms (SNPs) that can potentially cause mandibular prognathism. Methods After reviewing the articles, 56 genes associated with mandibular prognathism were identified and their missense SNPs were retrieved from the NCBI website. Several web-based tools including CADD, PolyPhen-2, PROVEAN, SNAP2, PANTHER, FATHMM, and PON-P2 were used to filter out harmful SNPs. Additionally, ConSurf determined the level of evolutionary conservation at positions where SNPs occur. I-Mutant2 and MUpro predicted the effect of SNPs on protein stability. Furthermore, to investigate the structural and functional changes of proteins, HOPE and LOMETS tools were utilized. Results Based on predictions in at least four web-based tools, the results indicated that PLXNA2-rs4844658, DUSP6-rs2279574, and FBN3-rs33967815 are harmful. These SNPs are located at positions with variable or average conservation and have the potential to reduce the stability of their respective proteins. Moreover, they may impair protein activity by causing structural and functional changes. Conclusions In this study, we identified PLXNA2-rs4844658, DUSP6-rs2279574, and FBN3-rs33967815 as potential risk factors for mandibular prognathism using several web-based tools. According to the possible roles of PLXNA2, DUSP6, and FBN3 proteins in ossification pathways, we recommend that these SNPs be investigated further in experimental research. Through such studies, we hope to gain a better understanding of the molecular mechanisms involved in mandible formation.
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Affiliation(s)
- Amin Kalmari
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, Babolsar, PC:47416-95447, Mazandaran, Iran
| | - Abasalt Hosseinzadeh Colagar
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, Babolsar, PC:47416-95447, Mazandaran, Iran
| | - Mohammadkazem Heydari
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, Babolsar, PC:47416-95447, Mazandaran, Iran
| | - Valiollah Arash
- Department of Orthodontics, School of dentistry, Babol University of Medical Sciences, Babol, PC: 47176-47745, Mazandaran, Iran
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Li L, Lv L, Xu JC, He Q, Chang N, Cui YY, Tao ZC, Zhu T, Qian LT. RIG-I Promotes Tumorigenesis and Confers Radioresistance of Esophageal Squamous Cell Carcinoma by Regulating DUSP6. Int J Mol Sci 2023; 24:ijms24065586. [PMID: 36982663 PMCID: PMC10052926 DOI: 10.3390/ijms24065586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/07/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023] Open
Abstract
We investigated the expression and biological function of retinoic acid inducible gene I (RIG-I) in esophageal squamous cell carcinoma (ESCC). Materials and methods: An immunohistochemical analysis was performed on 86 pairs of tumor tissue and adjacent normal tissue samples of patients with ESCC. We generated RIG-I-overexpressing ESCC cell lines KYSE70 and KYSE450, and RIG-I- knockdown cell lines KYSE150 and KYSE510. Cell viability, migration and invasion, radioresistance, DNA damage, and cell cycle were evaluated using CCK-8, wound-healing and transwell assay, colony formation, immunofluorescence, and flow cytometry and Western blotting, respectively. RNA sequencing was performed to determine the differential gene expression between controls and RIG-I knockdown. Tumor growth and radioresistance were assessed in nude mice using xenograft models. RIG-I expression was higher in ESCC tissues compared with that in matched non-tumor tissues. RIG-I overexpressing cells had a higher proliferation rate than RIG-I knockdown cells. Moreover, the knockdown of RIG-I slowed migration and invasion rates, whereas the overexpression of RIG-I accelerated migration and invasion rates. RIG-I overexpression induced radioresistance and G2/M phase arrest and reduced DNA damage after exposure to ionizing radiations compared with controls; however, it silenced the RIG-I enhanced radiosensitivity and DNA damage, and reduced the G2/M phase arrest. RNA sequencing revealed that the downstream genes DUSP6 and RIG-I had the same biological function; silencing DUSP6 can reduce the radioresistance caused by the overexpression of RIG-I. RIG-I knockdown depleted tumor growth in vivo, and radiation exposure effectively delayed the growth of xenograft tumors compared with the control group. RIG-I enhances the progression and radioresistance of ESCC; therefore, it may be a new potential target for ESCC-targeted therapy.
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Affiliation(s)
- Lu Li
- Department of Oncology Radiotherapy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China; (L.L.)
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Lei Lv
- Department of Oncology Radiotherapy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China; (L.L.)
| | - Jun-Chao Xu
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Qing He
- Department of Oncology Radiotherapy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China; (L.L.)
| | - Na Chang
- Department of Oncology Radiotherapy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China; (L.L.)
| | - Ya-Yun Cui
- Department of Oncology Radiotherapy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China; (L.L.)
| | - Zhen-Chao Tao
- Department of Oncology Radiotherapy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China; (L.L.)
| | - Tao Zhu
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
- Correspondence: (T.Z.); (L.-T.Q.)
| | - Li-Ting Qian
- Department of Oncology Radiotherapy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China; (L.L.)
- Correspondence: (T.Z.); (L.-T.Q.)
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Xie S, Choudhari S, Wu CL, Abramson K, Corcoran D, Gregory SG, Thimmapuram J, Guilak F, Little D. Aging and obesity prime the methylome and transcriptome of adipose stem cells for disease and dysfunction. FASEB J 2023; 37:e22785. [PMID: 36794668 PMCID: PMC10561192 DOI: 10.1096/fj.202201413r] [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: 08/31/2022] [Revised: 12/20/2022] [Accepted: 01/09/2023] [Indexed: 02/17/2023]
Abstract
The epigenome of stem cells occupies a critical interface between genes and environment, serving to regulate expression through modification by intrinsic and extrinsic factors. We hypothesized that aging and obesity, which represent major risk factors for a variety of diseases, synergistically modify the epigenome of adult adipose stem cells (ASCs). Using integrated RNA- and targeted bisulfite-sequencing in murine ASCs from lean and obese mice at 5- and 12-months of age, we identified global DNA hypomethylation with either aging or obesity, and a synergistic effect of aging combined with obesity. The transcriptome of ASCs in lean mice was relatively stable to the effects of age, but this was not true in obese mice. Functional pathway analyses identified a subset of genes with critical roles in progenitors and in diseases of obesity and aging. Specifically, Mapt, Nr3c2, App, and Ctnnb1 emerged as potential hypomethylated upstream regulators in both aging and obesity (AL vs. YL and AO vs. YO), and App, Ctnnb1, Hipk2, Id2, and Tp53 exhibited additional effects of aging in obese animals. Furthermore, Foxo3 and Ccnd1 were potential hypermethylated upstream regulators of healthy aging (AL vs. YL), and of the effects of obesity in young animals (YO vs. YL), suggesting that these factors could play a role in accelerated aging with obesity. Finally, we identified candidate driver genes that appeared recurrently in all analyses and comparisons undertaken. Further mechanistic studies are needed to validate the roles of these genes capable of priming ASCs for dysfunction in aging- and obesity-associated pathologies.
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Affiliation(s)
- Shaojun Xie
- Bioinformatics Core, Purdue University, 1022 Young Hall, 155 S. Grant Street, West Lafayette, IN 47907
| | - Sulbha Choudhari
- Bioinformatics Core, Purdue University, 1022 Young Hall, 155 S. Grant Street, West Lafayette, IN 47907
- Advanced Biomedical Computational Science, Bioinformatics and Computational Science, Frederick National Laboratory for Cancer Research, 8560 Progress Drive, Frederick, MD 2170
| | - Chia-Lung Wu
- Department of Orthopaedics and Rehabilitation, Center for Musculoskeletal Research, University of Rochester, Rochester, NY, 14611
| | - Karen Abramson
- Duke Molecular Physiology Institute, 300 North Duke Street, Durham, NC 27701
| | - David Corcoran
- Genomic Analysis and Bioinformatics Shared Resource, Duke Center for Genomic and Computational Biology, 101 Science Drive, Duke University Medical Center Box 3382, Durham, NC 27708
- Lineberger Bioinformatics Core, 5200 Marsico Hall, University of North Carolina-Chapel Hill, Chapel Hill, NC 27516
| | - Simon G. Gregory
- Duke Molecular Physiology Institute, 300 North Duke Street, Durham, NC 27701
- Department of Neurology, Duke University School of Medicine, 311 Research Drive, Durham, NC 27710
| | - Jyothi Thimmapuram
- Bioinformatics Core, Purdue University, 1022 Young Hall, 155 S. Grant Street, West Lafayette, IN 47907
| | - Farshid Guilak
- Department of Orthopaedic Surgery, Washington University in St. Louis, 4515 McKinley Ave., St. Louis, MO 63110
- Shriners Hospitals for Children – St. Louis, 4400 Clayton Ave, St. Louis Missouri 63110
| | - Dianne Little
- Departments of Basic Medical Sciences and Biomedical Engineering, Purdue University, 2186 Lynn Hall, 625 Harrison St, West Lafayette, IN 47907-2026
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18
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Khor JM, Ettensohn CA. An optimized Tet-On system for conditional control of gene expression in sea urchins. Development 2023; 150:dev201373. [PMID: 36607745 PMCID: PMC10108607 DOI: 10.1242/dev.201373] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/28/2022] [Indexed: 01/07/2023]
Abstract
Sea urchins and other echinoderms are important experimental models for studying developmental processes. The lack of approaches for conditional gene perturbation, however, has made it challenging to investigate the late developmental functions of genes that have essential roles during early embryogenesis and genes that have diverse functions in multiple tissues. The doxycycline-controlled Tet-On system is a widely used molecular tool for temporally and spatially regulated transgene expression. Here, we optimized the Tet-On system to conditionally induce gene expression in sea urchin embryos. Using this approach, we explored the roles the MAPK signaling plays in skeletogenesis by expressing genes that perturb the pathway specifically in primary mesenchyme cells during later stages of development. We demonstrated the wide utility of the Tet-On system by applying it to a second sea urchin species and in cell types other than the primary mesenchyme cells. Our work provides a robust and flexible platform for the spatiotemporal regulation of gene expression in sea urchins, which will considerably enhance the utility of this prominent model system.
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Affiliation(s)
- Jian Ming Khor
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Charles A. Ettensohn
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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19
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Kong T, Laranjeira ABA, Yang K, Fisher DAC, Yu L, Poittevin De La Frégonnière L, Wang AZ, Ruzinova MB, Fowles JS, Fulbright MC, Cox MJ, Celik H, Challen GA, Huang S, Oh ST. DUSP6 mediates resistance to JAK2 inhibition and drives leukemic progression. NATURE CANCER 2023; 4:108-127. [PMID: 36581736 PMCID: PMC11288645 DOI: 10.1038/s43018-022-00486-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 11/08/2022] [Indexed: 12/31/2022]
Abstract
Myeloproliferative neoplasms (MPNs) exhibit a propensity for transformation to secondary acute myeloid leukemia (sAML), for which the underlying mechanisms remain poorly understood, resulting in limited treatment options and dismal clinical outcomes. Here, we performed single-cell RNA sequencing on serial MPN and sAML patient stem and progenitor cells, identifying aberrantly increased expression of DUSP6 underlying disease transformation. Pharmacologic dual-specificity phosphatase (DUSP)6 targeting led to inhibition of S6 and Janus kinase (JAK)-signal transducer and activator of transcription (STAT) signaling while also reducing inflammatory cytokine production. DUSP6 perturbation further inhibited ribosomal S6 kinase (RSK)1, which we identified as a second indispensable candidate associated with poor clinical outcome. Ectopic expression of DUSP6 mediated JAK2-inhibitor resistance and exacerbated disease severity in patient-derived xenograft (PDX) models. Contrastingly, DUSP6 inhibition potently suppressed disease development across Jak2V617F and MPLW515L MPN mouse models and sAML PDXs without inducing toxicity in healthy controls. These findings underscore DUSP6 in driving disease transformation and highlight the DUSP6-RSK1 axis as a vulnerable, druggable pathway in myeloid malignancies.
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Affiliation(s)
- Tim Kong
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Angelo B A Laranjeira
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kangning Yang
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada
| | - Daniel A C Fisher
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - LaYow Yu
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Laure Poittevin De La Frégonnière
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada
| | - Anthony Z Wang
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Marianna B Ruzinova
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Jared S Fowles
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Mary C Fulbright
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Maggie J Cox
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Hamza Celik
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Grant A Challen
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Sidong Huang
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada
| | - Stephen T Oh
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA.
- Immunomonitoring Laboratory, Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA.
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20
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Benito-León M, Gil-Redondo JC, Perez-Sen R, Delicado EG, Ortega F, Gomez-Villafuertes R. BCI, an inhibitor of the DUSP1 and DUSP6 dual specificity phosphatases, enhances P2X7 receptor expression in neuroblastoma cells. Front Cell Dev Biol 2022; 10:1049566. [PMID: 36589747 PMCID: PMC9797830 DOI: 10.3389/fcell.2022.1049566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
P2X7 receptor (P2RX7) is expressed strongly by most human cancers, including neuroblastoma, where high levels of P2RX7 are correlated with a poor prognosis for patients. Tonic activation of P2X7 receptor favors cell metabolism and angiogenesis, thereby promoting cancer cell proliferation, immunosuppression, and metastasis. Although understanding the mechanisms that control P2X7 receptor levels in neuroblastoma cells could be biologically and clinically relevant, the intracellular signaling pathways involved in this regulation remain poorly understood. Here we show that (E)-2-benzylidene-3-(cyclohexylamino)-2,3-dihydro-1H-inden-1-one (BCI), an allosteric inhibitor of dual specificity phosphatases (DUSP) 1 and 6, enhances the expression of P2X7 receptor in N2a neuroblastoma cells. We found that exposure to BCI induces the phosphorylation of mitogen-activated protein kinases p38 and JNK, while it prevents the phosphorylation of ERK1/2. BCI enhanced dual specificity phosphatase 1 expression, whereas it induced a decrease in the dual specificity phosphatase 6 transcripts, suggesting that BCI-dependent inhibition of dual specificity phosphatase 1 may be responsible for the increase in p38 and JNK phosphorylation. The weaker ERK phosphorylation induced by BCI was reversed by p38 inhibition, indicating that this MAPK is involved in the regulatory loop that dampens ERK activity. The PP2A phosphatase appears to be implicated in the p38-dependent dephosphorylation of ERK1/2. In addition, the PTEN phosphatase inhibition also prevented ERK1/2 dephosphorylation, probably through p38 downregulation. By contrast, inhibition of the p53 nuclear factor decreased ERK phosphorylation, probably enhancing the activity of p38. Finally, the inhibition of either p38 or Sp1-dependent transcription halved the increase in P2X7 receptor expression induced by BCI. Moreover, the combined inhibition of both p38 and Sp1 completely prevented the effect exerted by BCI. Together, our results indicate that dual specificity phosphatase 1 acts as a novel negative regulator of P2X7 receptor expression in neuroblastoma cells due to the downregulation of the p38 pathway.
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Affiliation(s)
- María Benito-León
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, University Complutense of Madrid, Madrid, Spain,Instituto Universitario de Investigación en Neuroquímica (IUIN), Madrid, Spain,Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - Juan Carlos Gil-Redondo
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, University Complutense of Madrid, Madrid, Spain,Instituto Universitario de Investigación en Neuroquímica (IUIN), Madrid, Spain,Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain,Department of Nanobiotechnology, Institute for Biophysics, BOKU University for Natural Resources and Life Sciences, Vienna, Austria
| | - Raquel Perez-Sen
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, University Complutense of Madrid, Madrid, Spain,Instituto Universitario de Investigación en Neuroquímica (IUIN), Madrid, Spain,Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - Esmerilda G. Delicado
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, University Complutense of Madrid, Madrid, Spain,Instituto Universitario de Investigación en Neuroquímica (IUIN), Madrid, Spain,Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - Felipe Ortega
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, University Complutense of Madrid, Madrid, Spain,Instituto Universitario de Investigación en Neuroquímica (IUIN), Madrid, Spain,Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain,*Correspondence: Felipe Ortega, ; Rosa Gomez-Villafuertes,
| | - Rosa Gomez-Villafuertes
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, University Complutense of Madrid, Madrid, Spain,Instituto Universitario de Investigación en Neuroquímica (IUIN), Madrid, Spain,Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain,*Correspondence: Felipe Ortega, ; Rosa Gomez-Villafuertes,
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21
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Aberrant Expression and Prognostic Potential of IL-37 in Human Lung Adenocarcinoma. Biomedicines 2022; 10:biomedicines10123037. [PMID: 36551790 PMCID: PMC9775426 DOI: 10.3390/biomedicines10123037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/15/2022] [Accepted: 11/21/2022] [Indexed: 11/26/2022] Open
Abstract
Interleukin-37 (IL-37) is a relatively new IL-1 family cytokine that, due to its immunoregulatory properties, has lately gained increasing attention in basic and translational biomedical research. Emerging evidence supports the implication of this protein in any human disorder in which immune homeostasis is compromised, including cancer. The aim of this study was to explore the prognostic and/or diagnostic potential of IL-37 and its receptor SIGIRR (single immunoglobulin IL-1-related receptor) in human tumors. We utilized a series of bioinformatics tools and -omics datasets to unravel possible associations of IL-37 and SIGIRR expression levels and genetic aberrations with tumor development, histopathological parameters, distribution of tumor-infiltrating immune cells, and survival rates of patients. Our data revealed that amongst the 17 human malignancies investigated, IL-37 exhibits higher expression levels in tumors of lung adenocarcinoma (LUAD). Moreover, the expression profiles of IL-37 and SIGIRR are associated with LUAD development and tumor stage, whereas their high mRNA levels are favorable prognostic factors for the overall survival of patients. What is more, IL-37 correlates positively with a LUAD-associated transcriptomic signature, and its nucleotide changes and expression levels are linked with distinct infiltration patterns of certain cell subsets known to control LUAD anti-tumor immune responses. Our data indicate the potential value of IL-37 and its receptor SIGIRR to serve as biomarkers and/or immune-checkpoint therapeutic targets for LUAD patients. Further, the data highlight the urgent need for further exploration of this cytokine and the underlying pathogenetic mechanisms to fully elucidate its implication in LUAD development and progression.
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22
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Michiue T, Tsukano K. Feedback Regulation of Signaling Pathways for Precise Pre-Placodal Ectoderm Formation in Vertebrate Embryos. J Dev Biol 2022; 10:35. [PMID: 36135368 PMCID: PMC9504399 DOI: 10.3390/jdb10030035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Intracellular signaling pathways are essential to establish embryonic patterning, including embryonic axis formation. Ectodermal patterning is also governed by a series of morphogens. Four ectodermal regions are thought to be controlled by morphogen gradients, but some perturbations are expected to occur during dynamic morphogenetic movement. Therefore, a mechanism to define areas precisely and reproducibly in embryos, including feedback regulation of signaling pathways, is necessary. In this review, we outline ectoderm pattern formation and signaling pathways involved in the establishment of the pre-placodal ectoderm (PPE). We also provide an example of feedback regulation of signaling pathways for robust formation of the PPE, showing the importance of this regulation.
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Affiliation(s)
- Tatsuo Michiue
- Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo 153-8902, Japan
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23
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Peng J, Zhang K, Wang L, Peng F, Zhang C, Long K, Chen J, Zhou X, Gao P, Fan G. Integrating network pharmacology and molecular docking to explore the potential mechanism of Xinguan No. 3 in the treatment of COVID-19. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Xinguan No. 3 has been recommended for the treatment of coronavirus disease 2019 (COVID-19); however, its potential mechanisms are unclear. This study aims to explore the mechanisms of Xinguan No. 3 against COVID-19 through network pharmacology and molecular docking. We first searched the ingredients of Xinguan No. 3 in three databases (Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform, Traditional Chinese Medicines Integrated Database, and The Encyclopedia of Traditional Chinese Medicine). The active components and their potential targets were predicted through the SwissTargetPrediction website. The targets of COVID-19 can be found on the GeneCards website. Protein interaction analysis, screening of key targets, functional enrichment of key target genes, and signaling pathway analysis were performed through Search Tool for the Retrieval of Interacting Genes databases, Metascape databases, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway databases. Finally, the affinity of the key active components with the core targets was verified by molecular docking. The results showed that five core targets had been screened, including MAPK1, NF-κB1, RELA, AKT1, and MAPK14. Gene ontology enrichment analysis revealed that the key targets were associated with inflammatory responses and responses to external stimuli. KEGG enrichment analysis indicated that the main pathways were influenza A, hepatitis B, Toll-like receptor signaling pathway, NOD-like receptor signaling pathway, and TNF signaling pathway. Therefore, Xinguan No. 3 might play a role in treating COVID-19 through anti-inflammatory, immune responses, and regulatory responses to external stimuli.
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Affiliation(s)
- Jiayan Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine , Chengdu 611137 , P. R. China
| | - Kun Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine , Chengdu 611137 , P. R. China
| | - Lijie Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine , Chengdu 611137 , P. R. China
| | - Fang Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine , Chengdu 611137 , P. R. China
| | - Chuantao Zhang
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine , Chengdu 611130 , P. R. China
| | - Kunlan Long
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine , Chengdu 611130 , P. R. China
| | - Jun Chen
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine , Chengdu 611130 , P. R. China
| | - Xiujuan Zhou
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine , Chengdu 611130 , P. R. China
| | - Peiyang Gao
- Department of Critical Care Medicine, Hospital of Chengdu University of Traditional Chinese Medicine , Chengdu 611130 , P. R. China
| | - Gang Fan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine , Chengdu 611137 , P. R. China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine , Chengdu 611137 , P. R. China
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24
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Tsukano K, Yamamoto T, Watanabe T, Michiue T. Xenopus Dusp6 modulates FGF signaling precisely to pattern pre-placodal ectoderm. Dev Biol 2022; 488:81-90. [DOI: 10.1016/j.ydbio.2022.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 05/07/2022] [Accepted: 05/16/2022] [Indexed: 12/23/2022]
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25
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Hashiguchi S, Tanaka T, Mano R, Kondo S, Kodama S. CCN2-induced lymphangiogenesis is mediated by the integrin αvβ5-ERK pathway and regulated by DUSP6. Sci Rep 2022; 12:926. [PMID: 35042954 PMCID: PMC8766563 DOI: 10.1038/s41598-022-04988-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/05/2022] [Indexed: 12/20/2022] Open
Abstract
Lymphangiogenesis is essential for the development of the lymphatic system and is important for physiological processes such as homeostasis, metabolism and immunity. Cellular communication network factor 2 (CCN2, also known as CTGF), is a modular and matricellular protein and a well-known angiogenic factor in physiological and pathological angiogenesis. However, its roles in lymphangiogenesis and intracellular signaling in lymphatic endothelial cells (LECs) remain unclear. Here, we investigated the effects of CCN2 on lymphangiogenesis. In in vivo Matrigel plug assays, exogenous CCN2 increased the number of Podoplanin-positive vessels. Subsequently, we found that CCN2 induced phosphorylation of ERK in primary cultured LECs, which was almost completely inhibited by the blockade of integrin αvβ5 and partially decreased by the blockade of integrin αvβ3. CCN2 promoted direct binding of ERK to dual-specific phosphatase 6 (DUSP6), which regulated the activation of excess ERK by dephosphorylating ERK. In vitro, CCN2 promoted tube formation in LECs, while suppression of Dusp6 further increased tube formation. In vivo, immunohistochemistry also detected ERK phosphorylation and DUSP6 expression in Podoplanin-positive cells on CCN2-supplemented Matrigel. These results indicated that CCN2 promotes lymphangiogenesis by enhancing integrin αvβ5-mediated phosphorylation of ERK and demonstrated that DUSP6 is a negative regulator of excessive lymphangiogenesis by CCN2.
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Affiliation(s)
- Shiho Hashiguchi
- Department of Oral Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.,Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Tomoko Tanaka
- Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Ryosuke Mano
- Department of Oral Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.,Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Seiji Kondo
- Department of Oral Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Shohta Kodama
- Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
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26
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Inhibition of DUSP6 Activates Autophagy and Rescues the Retinal Pigment Epithelium in Sodium Iodate-Induced Retinal Degeneration Models In Vivo and In Vitro. Biomedicines 2022; 10:biomedicines10010159. [PMID: 35052838 PMCID: PMC8773272 DOI: 10.3390/biomedicines10010159] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 01/27/2023] Open
Abstract
Autophagy plays a protective role in the retinal pigment epithelium (RPE) by eliminating damaged organelles in response to reactive oxygen species (ROS). Dual-specificity protein phosphatase 6 (DUSP6), which belongs to the DUSP subfamily, works as a negative-feedback regulator of the extracellular signal-regulated kinase (ERK) pathway. However, the complex interplay between DUSP6 and autophagy induced by ROS in RPE is yet to be investigated. To investigate the relationship between DUSP6 and autophagy, we exposed the ARPE-19 cell line and C57BL/6N mice to sodium iodate (NaIO3) as an oxidative stress inducer. Our data showed that the inhibition of DUSP6 activity promotes autophagy flux through the ERK pathway via the upregulation of immunoblotting expression in ARPE-19 cells. Live imaging showed a significant increase in autophagic flux activities, which suggested the restoration autophagy after treatment with the DUSP6 inhibitor. Furthermore, the mouse RPE layer exhibited an irregular structure and abnormal deposits following NaIO3 injection. The retina layer was recovered after being treated with DUSP6 inhibitor; this suggests that DUSP6 inhibitor can rescue retinal damage by restoring the mouse retina’s autophagy flux. This study suggests that the upregulation of DUSP6 can cause autophagy flux malfunctions in the RPE. The DUSP6 inhibitor can restore autophagy induction, which may serve as a potential therapeutic approach for retinal degeneration disease.
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27
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Kim S, Kim M, Sung JS. Exposure of Toluene Diisocyanate Induces DUSP6 and p53 through Activation of TRPA1 Receptor. Int J Mol Sci 2022; 23:ijms23010517. [PMID: 35008945 PMCID: PMC8745568 DOI: 10.3390/ijms23010517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 01/27/2023] Open
Abstract
Toluene diisocyanate (TDI), a major intermediate agent used in the manufacturing industry, causes respiratory symptoms when exposed to the human body. In this study, we aimed to determine the molecular mechanism of TDI toxicity. To investigate the impact of TDI exposure on global gene expression, we performed transcriptomic analysis of human bronchial epithelial cells (BEAS-2B) after TDI treatment. Differentially expressed genes (DEGs) were sorted and used for clustering and network analysis. Among DEGs, dual-specificity phosphatase 6 (DUSP6) was one of the genes significantly changed by TDI exposure. To verify the expression level of DUSP6 and its effect on lung cells, the mRNA and protein levels of DUSP6 were analyzed. Our results showed that DUSP6 was dose-dependently upregulated by TDI treatment. Thereby, the phosphorylation of ERK1/2, one of the direct inhibitory targets of DUSP6, was decreased. TDI exposure also increased the mRNA level of p53 along with its protein and activity which trans-activates DUSP6. Since TRPA1 is known as a signal integrator activated by TDI, we analyzed the relevance of TRPA1 receptor in DUSP6 regulation. Our data revealed that up-regulation of DUSP6 mediated by TDI was blocked by a specific antagonist against TRPA1. TDI exposure attenuated the apoptotic response, which suggests that it promotes the survival of cancerous cells. In conclusion, our results suggest that TDI induces DUSP6 and p53, but attenuates ERK1/2 activity through TRPA1 receptor activation, leading to cytotoxicity.
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Affiliation(s)
| | - Min Kim
- Correspondence: (M.K.); (J.-S.S.); Tel.: +82-31-961-5132 (J.-S.S.); Fax: +82-31-961-5108 (J.-S.S.)
| | - Jung-Suk Sung
- Correspondence: (M.K.); (J.-S.S.); Tel.: +82-31-961-5132 (J.-S.S.); Fax: +82-31-961-5108 (J.-S.S.)
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28
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Wang Q, Zhang L, Qu J, Wu X, Sun X, Ji D, Li Y. DUSP6 inhibits the proliferation of hair follicle stem cells (HFSCs) in vitro. Anim Biotechnol 2022. [PMID: 37524308 DOI: 10.1080/10495398.2021.2016433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
RNA-seq has shown that the DUSP6 and MAPK signaling pathways are associated with the production of high-quality brush hair (type III hair) in Yangtze River Delta white goats. However, there are few reports on the regulatory effects of DUSP6 expression on hair follicle stem cells (HFSCs) and cellular processes, as well as the underlying mechanism. Here, we investigated the effect of DUSP6 level in HFSCs and the molecular mechanism underlying the functional regulation of HFSCs by DUSP6. Overexpression of DUSP6 significantly suppressed the proliferation of HFSCs by inducing cell cycle arrest in the G1 phase and by promoting apoptosis. Transcriptome analysis revealed a total of 217 differentially expressed genes between DUSP6-overexpressing and control HFSCs, of which 33 (15.2%) were upregulated in DUSP6-overexpressing cells. The two pathways with the most significant enrichment of differentially expressed genes were the TNF signaling pathway and cytokine-cytokine receptor interaction pathway, and the significantly enriched terms in the GO enrichment analysis involved cell attachment and cytokines. These results indicate that DUSP6 can function as an inhibitory factor in HFSCs through the induction of cell cycle arrest in the G1 phase and can promote apoptosis by mediating crosstalk among several pathways and cytokines.HighlightsWe constructed DUSP6 overexpression vectors to detect mRNA and protein expression levels related to high-quality brush hair in MAPK signaling pathway.We found that high expression level of DUSP6 can inhibit the proliferation of hair follicle stem cells (HFSCs) and promote cell apoptosis of HFSCs.DUSP6 may be involved in the growth regulation of HFSCs like Other studies in cancer, tumors by regulating the expression of cytokines, changing the transmission of signals between cells, activating or suppressing immune-related pathways.
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Affiliation(s)
- Qiang Wang
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Liuming Zhang
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Jingwen Qu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Xi Wu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - XiaoMei Sun
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Dejun Ji
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Yongjun Li
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
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Assmann JLJC, Leon LG, Stavast CJ, van den Bogaerdt SE, Schilperoord-Vermeulen J, Sandberg Y, Bellido M, Erkeland SJ, Feith DJ, Loughran TP, Langerak AW. miR-181a is a novel player in the STAT3-mediated survival network of TCRαβ+ CD8+ T large granular lymphocyte leukemia. Leukemia 2021; 36:983-993. [PMID: 34873301 PMCID: PMC8979821 DOI: 10.1038/s41375-021-01480-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/08/2021] [Accepted: 11/15/2021] [Indexed: 11/09/2022]
Abstract
T-LGL cells arise as a consequence of chronic antigenic stimulation and inflammation and thrive because of constitutive activation of the STAT3 and ERK pathway. Notably, in 40% of patients, constitutive STAT3 activation is due to STAT3 activating mutations, whereas in 60% this is unknown. As miRNAs are amongst the most potent regulators in health and disease, we hypothesized that aberrant miRNA expression could contribute to dysregulation of these pathways. miRNA sequencing in T-LGL leukemia cases and aged-matched healthy control TEMRA cells revealed overexpression of miR-181a. Furthermore, geneset enrichment analysis (GSEA) of downregulated targets of miR-181a implicated involvement in regulating STAT3 and ERK1/2 pathways. Flow cytometric analyses showed increased SOCS3+ and DUSP6+ T-LGL cells upon miR-181a inhibition. In addition, miR-181a-transfected human CD8+ T cells showed increased basal STAT3 and ERK1/2 phosphorylation. By using TL1, a human T-LGL cell line, we could show that miR-181a is an actor in T-LGL leukemia, driving STAT3 activation by SOCS3 inhibition and ERK1/2 phosphorylation by DUSP6 inhibition and verified this mechanism in an independent cell line. In addition, miR-181a inhibition resulted in a higher sensitivity to FAS-mediated apoptosis. Collectively, our data show that miR-181a could be the missing link to explain why STAT3-unmutated patients show hyperactive STAT3.
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Affiliation(s)
- Jorn L J C Assmann
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Leticia G Leon
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Christiaan J Stavast
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Sanne E van den Bogaerdt
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Joyce Schilperoord-Vermeulen
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Yorick Sandberg
- Department of Hematology, Maasstadziekenhuis, Rotterdam, The Netherlands
| | - Mar Bellido
- Department of Hematology, Faculty of Medical Sciences, Groningen University Medical Center, Groningen, The Netherlands
| | - Stefan J Erkeland
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - David J Feith
- Division of Hematology/Oncology, Department of Medicine, UVA Cancer Center, University of Virginia, Charlottesville, VA, USA
| | - Thomas P Loughran
- Division of Hematology/Oncology, Department of Medicine, UVA Cancer Center, University of Virginia, Charlottesville, VA, USA
| | - Anton W Langerak
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. .,ACE Rare Immunological Diseases Center, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
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30
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Mulqueen RM, Pokholok D, O’Connell BL, Thornton CA, Zhang F, O’Roak BJ, Link J, Yardımcı GG, Sears RC, Steemers FJ, Adey AC. High-content single-cell combinatorial indexing. Nat Biotechnol 2021; 39:1574-1580. [PMID: 34226710 PMCID: PMC8678206 DOI: 10.1038/s41587-021-00962-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 05/20/2021] [Indexed: 02/06/2023]
Abstract
Single-cell combinatorial indexing (sci) with transposase-based library construction increases the throughput of single-cell genomics assays but produces sparse coverage in terms of usable reads per cell. We develop symmetrical strand sci ('s3'), a uracil-based adapter switching approach that improves the rate of conversion of source DNA into viable sequencing library fragments following tagmentation. We apply this chemistry to assay chromatin accessibility (s3-assay for transposase-accessible chromatin, s3-ATAC) in human cortical and mouse whole-brain tissues, with mouse datasets demonstrating a six- to 13-fold improvement in usable reads per cell compared with other available methods. Application of s3 to single-cell whole-genome sequencing (s3-WGS) and to whole-genome plus chromatin conformation (s3-GCC) yields 148- and 14.8-fold improvements, respectively, in usable reads per cell compared with sci-DNA-sequencing and sci-HiC. We show that s3-WGS and s3-GCC resolve subclonal genomic alterations in patient-derived pancreatic cancer cell lines. We expect that the s3 platform will be compatible with other transposase-based techniques, including sci-MET or CUT&Tag.
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Affiliation(s)
- Ryan M. Mulqueen
- Oregon Health & Science University, Department of Molecular and Medical Genetics, Portland, OR
| | | | - Brendan L. O’Connell
- Oregon Health & Science University, Department of Molecular and Medical Genetics, Portland, OR
| | - Casey A. Thornton
- Oregon Health & Science University, Department of Molecular and Medical Genetics, Portland, OR
| | | | - Brian J. O’Roak
- Oregon Health & Science University, Department of Molecular and Medical Genetics, Portland, OR
| | - Jason Link
- Oregon Health & Science University, Department of Molecular and Medical Genetics, Portland, OR,Oregon Health & Science University, Knight Cancer Institute, Portland, OR,Oregon Health & Science University, Brendan Colson Center for Pancreatic Care, Portland, OR
| | - Galip Gürkan Yardımcı
- Oregon Health & Science University, Knight Cancer Institute, Portland, OR,Oregon Health & Science University, Cancer Early Detection Advanced Research Center, Portland, OR
| | - Rosalie C. Sears
- Oregon Health & Science University, Department of Molecular and Medical Genetics, Portland, OR,Oregon Health & Science University, Knight Cancer Institute, Portland, OR,Oregon Health & Science University, Brendan Colson Center for Pancreatic Care, Portland, OR,Oregon Health & Science University, Cancer Early Detection Advanced Research Center, Portland, OR
| | | | - Andrew C. Adey
- Oregon Health & Science University, Department of Molecular and Medical Genetics, Portland, OR,Oregon Health & Science University, Knight Cancer Institute, Portland, OR,Oregon Health & Science University, Cancer Early Detection Advanced Research Center, Portland, OR,Oregon Health & Science University, Department of Oncological Sciences, Portland, OR,Oregon Health & Science University, Knight Cardiovascular Institute, Portland, OR,Correspondence to
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31
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Cai C, Hu W, Zhang Y, Hu X, Yang S, Qiu H, Wang R, Ma M, Qiu Y, Chu T. BCI Suppresses RANKL-Mediated Osteoclastogenesis and Alleviates Ovariectomy-Induced Bone Loss. Front Pharmacol 2021; 12:772540. [PMID: 34803714 PMCID: PMC8596812 DOI: 10.3389/fphar.2021.772540] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Osteoporosis is a common aging-related metabolic disease that mainly occurs in older adults and postmenopausal women. Despite advances in anti-osteoporosis treatment, outcomes remain unsatisfactory due to detrimental side effects. BCI hydrochloride (BCI), a selective dual-specificity phosphatase 6 (DUSP6) inhibitor, is associated with multiple cellular functions, including inhibiting tumor growth and macrophage inflammation; however, its role in regulating osteoclast differentiation remains unknown. Here, we revealed that treatment with BCI attenuated RANKL-mediated osteoclast differentiation in vitro and alleviated ovariectomy-induced osteoporosis without obvious toxicity. Specifically, BCI disrupted F-actin ring formation and bone-resorption activity and decreased osteoclast-specific gene and protein levels in a dose-dependent manner. KEGG pathway analysis, GSEA based on transcriptome sequencing, and western blot results suggested that BCI inhibited RANKL-induced osteoclastogenesis by restraining STAT3 and NF-κB signaling and attenuating NF-κB/p65 interaction with NFATc1. These results revealed that BCI treatment prevented postmenopausal osteoporosis and might represent an effective approach for treating osteoporosis.
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Affiliation(s)
- Chenhui Cai
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wenhui Hu
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Ying Zhang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xu Hu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Sizhen Yang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Hao Qiu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Rujie Wang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Min Ma
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yiyun Qiu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Tongwei Chu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
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32
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Nair J, Syed SB, Mahaddalkar T, Ketkar M, Thorat R, Sastri Goda J, Dutt S. DUSP6 regulates radio-sensitivity in glioblastoma by modulating the recruitment of p-DNAPKcs at DNA double-strand breaks. J Cell Sci 2021; 134:273732. [PMID: 34792128 DOI: 10.1242/jcs.259520] [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: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 11/20/2022] Open
Abstract
Glioblastoma (GBM) has poor median survival due to its resistance to chemo-radiotherapy regimen, resulting in tumor recurrence. Recurrent GBMs currently lack effective treatments. DUSP6 is known to be pro-tumorigenic and is up-regulated in GBM. We show that DUSP6 expression is significantly higher in recurrent GBM patient biopsies (n=11) compared to primary biopsies (n=11). Importantly, although reported as cytoplasmic protein, we found nuclear localization of DUSP6 in primary and recurrent patient samples and in parent and relapse population of GBM cell lines generated from in vitro radiation survival model. DUSP6 inhibition using BCI resulted in decreased proliferation and clonogenic survival of parent and relapse cells. Pharmacological or genetic inhibition of DUSP6 catalytic activity radio-sensitized primary and importantly, relapse GBM cells by inhibiting the recruitment of p-DNAPKcs, subsequently down-regulating the recruitment of γH2AX and 53BP1. This resulted in decreased cell survival and prolonged growth arrest upon irradiation in vitro and significantly increased the progression-free survival in orthotopic mouse models of GBM. Our study highlights a non-canonical function of DUSP6, emphasizing the potential application of DUSP6 inhibitors in the treatment of recurrent GBM.
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Affiliation(s)
- Jyothi Nair
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Safiulla Basha Syed
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India
| | - Tejashree Mahaddalkar
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Madhura Ketkar
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Rahul Thorat
- Laboratory Animal Facility, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India
| | - Jayant Sastri Goda
- Department of Radiation Oncology, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India
| | - Shilpee Dutt
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
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33
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Khoubai FZ, Grosset CF. DUSP9, a Dual-Specificity Phosphatase with a Key Role in Cell Biology and Human Diseases. Int J Mol Sci 2021; 22:ijms222111538. [PMID: 34768967 PMCID: PMC8583968 DOI: 10.3390/ijms222111538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/14/2022] Open
Abstract
Mitogen-activated protein kinases (MAPKs) are essential for proper cell functioning as they regulate many molecular effectors. Careful regulation of MAPKs is therefore required to avoid MAPK pathway dysfunctions and pathologies. The mammalian genome encodes about 200 phosphatases, many of which dephosphorylate the MAPKs and bring them back to an inactive state. In this review, we focus on the normal and pathological functions of dual-specificity phosphatase 9 (DUSP9)/MAP kinase phosphatases-4 (MKP-4). This cytoplasmic phosphatase, which belongs to the threonine/tyrosine dual-specific phosphatase family and was first described in 1997, is known to dephosphorylate ERK1/2, p38, JNK and ASK1, and thereby to control various MAPK pathway cascades. As a consequence, DUSP9 plays a major role in human pathologies and more specifically in cardiac dysfunction, liver metabolic syndromes, diabetes, obesity and cancer including drug response and cell stemness. Here, we recapitulate the mechanism of action of DUSP9 in the cell, its levels of regulation and its roles in the most frequent human diseases, and discuss its potential as a therapeutic target.
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34
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Lau PKH, Feran B, Smith L, Lasocki A, Molania R, Smith K, Weppler A, Angel C, Kee D, Bhave P, Lee B, Young RJ, Iravani A, Yeang HA, Vergara IA, Kok D, Drummond K, Neeson PJ, Sheppard KE, Papenfuss T, Solomon BJ, Sandhu S, McArthur GA. Melanoma brain metastases that progress on BRAF-MEK inhibitors demonstrate resistance to ipilimumab-nivolumab that is associated with the Innate PD-1 Resistance Signature (IPRES). J Immunother Cancer 2021; 9:jitc-2021-002995. [PMID: 34625515 PMCID: PMC8504361 DOI: 10.1136/jitc-2021-002995] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2021] [Indexed: 12/13/2022] Open
Abstract
Background Melanoma brain metastases (MBMs) are a challenging clinical problem with high morbidity and mortality. Although first-line dabrafenib–trametinib and ipilimumab–nivolumab have similar intracranial response rates (50%–55%), central nervous system (CNS) resistance to BRAF-MEK inhibitors (BRAF-MEKi) usually occurs around 6 months, and durable responses are only seen with combination immunotherapy. We sought to investigate the utility of ipilimumab–nivolumab after MBM progression on BRAF-MEKi and identify mechanisms of resistance. Methods Patients who received first-line ipilimumab–nivolumab for MBMs or second/third line ipilimumab–nivolumab for intracranial metastases with BRAFV600 mutations with prior progression on BRAF-MEKi and MRI brain staging from March 1, 2015 to June 30, 2018 were included. Modified intracranial RECIST was used to assess response. Formalin-fixed paraffin-embedded samples of BRAFV600 mutant MBMs that were naïve to systemic treatment (n=18) or excised after progression on BRAF-MEKi (n=14) underwent whole transcriptome sequencing. Comparative analyses of MBMs naïve to systemic treatment versus BRAF-MEKi progression were performed. Results Twenty-five and 30 patients who received first and second/third line ipilimumab–nivolumab, were included respectively. Median sum of MBM diameters was 13 and 20.5 mm for the first and second/third line ipilimumab–nivolumab groups, respectively. Intracranial response rate was 75.0% (12/16), and median progression-free survival (PFS) was 41.6 months for first-line ipilimumab–nivolumab. Efficacy of second/third line ipilimumab-nivolumab after BRAF-MEKi progression was poor with an intracranial response rate of 4.8% (1/21) and median PFS of 1.3 months. Given the poor activity of ipilimumab–nivolumab after BRAF-MEKi MBM progression, we performed whole transcriptome sequencing to identify mechanisms of drug resistance. We identified a set of 178 differentially expressed genes (DEGs) between naïve and MBMs with progression on BRAF-MEKi treatment (p value <0.05, false discovery rate (FDR) <0.1). No distinct pathways were identified from gene set enrichment analyses using Kyoto Encyclopedia of Genes and Genomes, Gene Ontogeny or Hallmark libraries; however, enrichment of DEG from the Innate Anti-PD1 Resistance Signature (IPRES) was identified (p value=0.007, FDR=0.03). Conclusions Second-line ipilimumab–nivolumab for MBMs after BRAF-MEKi progression has poor activity. MBMs that are resistant to BRAF-MEKi that also conferred resistance to second-line ipilimumab–nivolumab showed enrichment of the IPRES gene signature.
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Affiliation(s)
- Peter Kar Han Lau
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Breon Feran
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
| | - Lorey Smith
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Arian Lasocki
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia.,Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Ramyar Molania
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
| | - Kortnye Smith
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Alison Weppler
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Christopher Angel
- Department of Histopathology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Damien Kee
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Prachi Bhave
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Belinda Lee
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Richard J Young
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Amir Iravani
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia.,Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Hanxian Aw Yeang
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Ismael A Vergara
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Melanoma Institute Australia, North Sydney, New South Wales, Australia
| | - David Kok
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Kate Drummond
- Department of Neurosurgery, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.,Department of Surgery, The University of Melbourne, Melbourne, Victoria, Australia
| | - Paul Joseph Neeson
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Karen E Sheppard
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Tony Papenfuss
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.,Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Benjamin J Solomon
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Shahneen Sandhu
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Grant A McArthur
- Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia .,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
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Kui L, Kong Q, Yang X, Pan Y, Xu Z, Wang S, Chen J, Wei K, Zhou X, Yang X, Wu T, Mastan A, Liu Y, Miao J. High-Throughput In Vitro Gene Expression Profile to Screen of Natural Herbals for Breast Cancer Treatment. Front Oncol 2021; 11:684351. [PMID: 34490085 PMCID: PMC8418118 DOI: 10.3389/fonc.2021.684351] [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: 03/23/2021] [Accepted: 07/23/2021] [Indexed: 11/13/2022] Open
Abstract
Breast cancer has surpassed lung cancer as the most commonly diagnosed cancer in women worldwide. Some therapeutic drugs and approaches could cause side effects and weaken the immune system. The combination of conventional therapies and traditional Chinese medicine (TCM) significantly improves treatment efficacy in breast cancer. However, the chemical composition and underlying anti-tumor mechanisms of TCM still need to be investigated. The primary aim of this study is to provide unique insights to screen the natural components for breast cancer therapy using high-throughput transcriptome analysis. Differentially expressed genes were identified based on two conditions: single samples and groups were classified according to their pharmaceutical effect. Subsequently, the sample treated with E. cochinchinensis Lour. generated the most significant DEGs set, including 1,459 DEGs, 805 upregulated and 654 downregulated. Similarly, group 3 treatment contained the most DEGs (414 DEGs, 311 upregulated and 103 downregulated). KEGG pathway analyses showed five significant pathways associated with the inflammatory and metastasis processes in cancer, which include the TNF, IL−17, NF-kappa B, MAPK signaling pathways, and transcriptional misregulation in cancer. Samples were classified into 13 groups based on their pharmaceutical effects. The results of the KEGG pathway analyses remained consistent with signal samples; group 3 presents a high significance. A total of 21 genes were significantly regulated in these five pathways, interestingly, IL6, TNFAIP3, and BRIC3 were enriched on at least two pathways, seven genes (FOSL1, S100A9, CXCL12, ID2, PRS6KA3, AREG, and DUSP6) have been reported as the target biomarkers and even the diagnostic tools in cancer therapy. In addition, weighted correlation network analysis (WGCNA) was used to identify 18 modules. Among them, blue and thistle2 were the most relevant modules. A total of 26 hub genes in blue and thistle2 modules were identified as the hub genes. In conclusion, we screened out three new TCM (R. communis L., E. cochinchinensis Lour., and B. fruticosa) that have the potential to develop natural drugs for breast cancer therapy, and obtained the therapeutic targets.
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Affiliation(s)
- Ling Kui
- Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, China.,Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States.,School of Pharmacy, Jiangsu University, Zhenjiang, China
| | - Qinghua Kong
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Xiaonan Yang
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Medicinal Botanical Garden, Nanning, China.,Guangxi Engineering Research Center of Traditional Chinese Medicine (TCM) Resource Intelligent Creation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Yunbing Pan
- Nowbio Biotechnology Company, Kunming, China
| | - Zetan Xu
- Nowbio Biotechnology Company, Kunming, China
| | | | - Jian Chen
- International Genome Center, Jiangsu University, Zhenjiang, China
| | - Kunhua Wei
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Medicinal Botanical Garden, Nanning, China.,Guangxi Engineering Research Center of Traditional Chinese Medicine (TCM) Resource Intelligent Creation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Xiaolei Zhou
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Medicinal Botanical Garden, Nanning, China.,Guangxi Engineering Research Center of Traditional Chinese Medicine (TCM) Resource Intelligent Creation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Xingzhi Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Tingqin Wu
- Department of Cell Biology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Anthati Mastan
- Research Center, Microbial Technology Laboratory, Council of Scientific & Industrial Research (CSIR)-Central Institute of Medicinal and Aromatic Plants, Bangalore, India
| | - Yao Liu
- Baoji High-tech Hospital , Baoji, China
| | - Jianhua Miao
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Medicinal Botanical Garden, Nanning, China.,School of Pharmacy, Guangxi Medical University, Nanning, China
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Kambaru A, Chaudhary N. Role of Protein Tyrosine Phosphatase in Regulation of Cell Signaling Cascades Affecting Tumor Cell Growth: A Future Perspective as Anti- Cancer Drug Target. Curr Pharm Biotechnol 2021; 23:920-931. [PMID: 34375185 DOI: 10.2174/1389201022666210810094739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/05/2021] [Accepted: 06/06/2021] [Indexed: 11/22/2022]
Abstract
Protein Tyrosine Phosphatase (PTP) superfamily is a key enzyme involved in the regulation of growth-related cell signaling cascades, such as the RAS/MAPK pathway, that directly affect cancer cell growth and metastasis. Several studies have indicated that the drug resistance observed in several late-stage tumors might also be affected by the levels of PTP in the cell. Hence, these phosphatases have been in the limelight for the past few decades as potential drug-targets and several promising drug candidates have been developed, even though none of these drugs have reached the market yet. In this review, we explore the potential of PTP as a viable anti-cancer drug target by studying PTPs, their regulation of several key cancer cell signaling pathways and how their levels affect various types of cancer. Furthermore, we present the current scenario of PTP as a molecular target and the various challenges faced in the development of PTP-targeting anti-cancer drugs.
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Affiliation(s)
| | - Nidhee Chaudhary
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
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Ghaddar N, Wang S, Woodvine B, Krishnamoorthy J, van Hoef V, Darini C, Kazimierczak U, Ah-Son N, Popper H, Johnson M, Officer L, Teodósio A, Broggini M, Mann KK, Hatzoglou M, Topisirovic I, Larsson O, Le Quesne J, Koromilas AE. The integrated stress response is tumorigenic and constitutes a therapeutic liability in KRAS-driven lung cancer. Nat Commun 2021; 12:4651. [PMID: 34330898 PMCID: PMC8324901 DOI: 10.1038/s41467-021-24661-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 06/30/2021] [Indexed: 12/11/2022] Open
Abstract
The integrated stress response (ISR) is an essential stress-support pathway increasingly recognized as a determinant of tumorigenesis. Here we demonstrate that ISR is pivotal in lung adenocarcinoma (LUAD) development, the most common histological type of lung cancer and a leading cause of cancer death worldwide. Increased phosphorylation of the translation initiation factor eIF2 (p-eIF2α), the focal point of ISR, is related to invasiveness, increased growth, and poor outcome in 928 LUAD patients. Dissection of ISR mechanisms in KRAS-driven lung tumorigenesis in mice demonstrated that p-eIF2α causes the translational repression of dual specificity phosphatase 6 (DUSP6), resulting in increased phosphorylation of the extracellular signal-regulated kinase (p-ERK). Treatments with ISR inhibitors, including a memory-enhancing drug with limited toxicity, provides a suitable therapeutic option for KRAS-driven lung cancer insofar as they substantially reduce tumor growth and prolong mouse survival. Our data provide a rationale for the implementation of ISR-based regimens in LUAD treatment.
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Affiliation(s)
- Nour Ghaddar
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
- Division of Experimental Medicine, Department of Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Shuo Wang
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
| | - Bethany Woodvine
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
| | - Jothilatha Krishnamoorthy
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
| | - Vincent van Hoef
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institute, Solna, Sweden
| | - Cedric Darini
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
| | - Urszula Kazimierczak
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
| | - Nicolas Ah-Son
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
| | - Helmuth Popper
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Myriam Johnson
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
- Division of Experimental Medicine, Department of Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Leah Officer
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
| | - Ana Teodósio
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
| | - Massimo Broggini
- Laboratory of Molecular Pharmacology IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
| | - Koren K Mann
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
- Gerald Bronfman Department of Oncology, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Maria Hatzoglou
- Department of Genetics, Case Western Reserve University, Cleveland, OH, USA
| | - Ivan Topisirovic
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada
- Gerald Bronfman Department of Oncology, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Ola Larsson
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institute, Solna, Sweden
| | - John Le Quesne
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK.
- MRC Toxicology Unit, University of Cambridge, Leicester, UK.
- Beatson Cancer Research Institute, Glasgow, UK.
| | - Antonis E Koromilas
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, QC, Canada.
- Gerald Bronfman Department of Oncology, Faculty of Medicine, McGill University, Montreal, QC, Canada.
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38
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Cancer stem cell phosphatases. Biochem J 2021; 478:2899-2920. [PMID: 34319405 DOI: 10.1042/bcj20210254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/15/2022]
Abstract
Cancer stem cells (CSCs) are involved in the initiation and progression of human malignancies by enabling cancer tissue self-renewal capacity and constituting the therapy-resistant population of tumor cells. However, despite the exhausting characterization of CSC genetics, epigenetics, and kinase signaling, eradication of CSCs remains an unattainable goal in most human malignancies. While phosphatases contribute equally with kinases to cellular phosphoregulation, our understanding of phosphatases in CSCs lags severely behind our knowledge about other CSC signaling mechanisms. Many cancer-relevant phosphatases have recently become druggable, indicating that further understanding of the CSC phosphatases might provide novel therapeutic opportunities. This review summarizes the current knowledge about fundamental, but yet poorly understood involvement of phosphatases in the regulation of major CSC signaling pathways. We also review the functional roles of phosphatases in CSC self-renewal, cancer progression, and therapy resistance; focusing particularly on hematological cancers and glioblastoma. We further discuss the small molecule targeting of CSC phosphatases and their therapeutic potential in cancer combination therapies.
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Corrado A, Aceto R, Silvestri R, Dell'Anno I, Ricci B, Miglietta S, Romei C, Giovannoni R, Poliseno L, Evangelista M, Vitiello M, Cipollini M, Garritano S, Giusti L, Zallocco L, Elisei R, Landi S, Gemignani F. Pro64His (rs4644) Polymorphism Within Galectin-3 Is a Risk Factor of Differentiated Thyroid Carcinoma and Affects the Transcriptome of Thyrocytes Engineered via CRISPR/Cas9 System. Thyroid 2021; 31:1056-1066. [PMID: 33308024 DOI: 10.1089/thy.2020.0366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: Galectin-3 (LGALS3) is an important glycoprotein involved in the malignant transformation of thyrocytes acting in the extracellular matrix, cytoplasm, and nucleus where it regulates TTF-1 and TCF4 transcription factors. Within LGALS3 gene, a common single-nucleotide polymorphism (SNP) (c.191C>A, p.Pro64His; rs4644) encoding for the variant Proline to Histidine at codon 64 has been extensively studied. However, data on rs4644 in the context of thyroid cancer are lacking. Thus, the aim of the present work was to evaluate the role of the rs4644 SNP as risk factor for differentiated thyroid cancer (DTC) and to determine the effect on the transcriptome in thyrocytes. Methods: A case/control association study in 1223 controls and 1142 unrelated consecutive DTC patients was carried out to evaluate the association between rs4644-P64H and the risk of DTC. We used the nonmalignant cell line Nthy-Ori (rs4644-C/A) and the CRISPR/Cas9 technique to generate isogenic cells carrying either the rs4644-A/A or rs4644-C/C homozygosis. Then, the transcriptome of the derivative and unmodified parental cells was analyzed by RNA-seq. Genes differentially expressed were validated by quantitative reverse transcription PCR and further tested in the parental Nthy-Ori cells after LGALS3 gene silencing, to investigate whether the expression of target genes was dependent on galectin-3 levels. Results: rs4644 AA genotype was associated with a reduced risk of DTC (compared with CC, ORadj = 0.66; 95% confidence interval = 0.46-0.93; Pass = 0.02). We found that rs4644 affects galectin-3 as a transcriptional coregulator. Among 34 genes affected by rs4644, HES1, HSPA6, SPC24, and NHS were of particular interest since their expression was rs4644-dependent (CC>AA for the first and AA>CC for the others), also in 574 thyroid tissues of Genotype-Tissue Expression (GTEx) biobank. Moreover, the expression of these genes was regulated by LGALS3-silencing. Using the proximity ligation assay in Nthy-Ori cells, we found that the TTF-1 interaction was genotype dependent. Conclusions: Our data show that in thyroid, rs4644 is a trans-expression quantitative trait locus that can modify the transcriptional expression of downstream genes, through the modulation of TTF-1.
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Affiliation(s)
- Alda Corrado
- Genetic Unit, Department of Biology, University of Pisa, Pisa, Italy
| | - Romina Aceto
- Genetic Unit, Department of Biology, University of Pisa, Pisa, Italy
- Humanitas Clinical and Research Centre-IRCCS, Milan, Italy
| | - Roberto Silvestri
- Genetic Unit, Department of Biology, University of Pisa, Pisa, Italy
| | - Irene Dell'Anno
- Genetic Unit, Department of Biology, University of Pisa, Pisa, Italy
| | - Benedetta Ricci
- Fondazione I.R.C.C.S., Istituto Neurologico Carlo Besta, Milan, Italy
| | - Simona Miglietta
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Cristina Romei
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | - Laura Poliseno
- Institute of Clinical Physiology (IFC), CNR, Pisa, Italy
| | | | | | - Monica Cipollini
- Genetic Unit, Department of Biology, University of Pisa, Pisa, Italy
| | - Sonia Garritano
- Centre for Integrative Biology, University of Trento, Trento, Italy
| | - Laura Giusti
- School of Pharmacy, University of Camerino, Camerino, Italy
| | - Lorenzo Zallocco
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | - Rossella Elisei
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefano Landi
- Genetic Unit, Department of Biology, University of Pisa, Pisa, Italy
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Kasuya Y, Kim JD, Hatano M, Tatsumi K, Matsuda S. Pathophysiological Roles of Stress-Activated Protein Kinases in Pulmonary Fibrosis. Int J Mol Sci 2021; 22:ijms22116041. [PMID: 34204949 PMCID: PMC8199902 DOI: 10.3390/ijms22116041] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/22/2021] [Accepted: 05/31/2021] [Indexed: 02/07/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is one of the most symptomatic progressive fibrotic lung diseases, in which patients have an extremely poor prognosis. Therefore, understanding the precise molecular mechanisms underlying pulmonary fibrosis is necessary for the development of new therapeutic options. Stress-activated protein kinases (SAPKs), c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase (p38) are ubiquitously expressed in various types of cells and activated in response to cellular environmental stresses, including inflammatory and apoptotic stimuli. Type II alveolar epithelial cells, fibroblasts, and macrophages are known to participate in the progression of pulmonary fibrosis. SAPKs can control fibrogenesis by regulating the cellular processes and molecular functions in various types of lung cells (including cells of the epithelium, interstitial connective tissue, blood vessels, and hematopoietic and lymphoid tissue), all aspects of which remain to be elucidated. We recently reported that the stepwise elevation of intrinsic p38 signaling in the lungs is correlated with a worsening severity of bleomycin-induced fibrosis, indicating an importance of this pathway in the progression of pulmonary fibrosis. In addition, a transcriptome analysis of RNA-sequencing data from this unique model demonstrated that several lines of mechanisms are involved in the pathogenesis of pulmonary fibrosis, which provides a basis for further studies. Here, we review the accumulating evidence for the spatial and temporal roles of SAPKs in pulmonary fibrosis.
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Affiliation(s)
- Yoshitoshi Kasuya
- Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (M.H.); (S.M.)
- Department of Biochemistry and Molecular Pharmacology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
- Correspondence: ; Tel.: +81-432-262-193; Fax: +81-432-262-196
| | - Jun-Dal Kim
- Department of Research and Development, Institute of Natural Medicine (INM), University of Toyama, Toyama 930-0194, Japan;
| | - Masahiko Hatano
- Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (M.H.); (S.M.)
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Shuichi Matsuda
- Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (M.H.); (S.M.)
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
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41
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Wang XL, Lu SC, Sun C, Jin WG, Fan YW, Shu YS, Shi HC, Min LF. Tripartite motif protein 11 (TRIM11), an oncogene for human lung cancer via the DUSP6-mediated ERK1/2 signaling pathway. Cancer Biol Ther 2021; 22:324-332. [PMID: 33970779 DOI: 10.1080/15384047.2021.1902912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Evidence suggests that Tripartite Motif Containing 11 (TRIM11) has pro-tumor activity in human non-small cell lung cancer (NSCLC). However, the roles and underlying mechanisms of TRIM11 in NSCLC have not yet been fully elucidated. In this work, human lung cancer cell lines (A549, H446, and H1975) were transfected with siRNA or lentiviruses to knockdown or overexpress TRIM11 and dual-specificity phosphatase 6 (DUSP6). The cell tumor response was assessed by determining the rate of proliferation, apoptosis, the uptake of 2-[N-(7-nitrobenz-2-oxa-1, 3-diaxol-4-yl) amino]-2-deoxyglucose (2-NBDG), and the secretion of lactic acid (LD). Dominant-negative (dn)-MEK1 was used to block the ERK1/2 pathway. The mechanism was investigated by assessing the protein levels of pyruvate kinase isozymes M2 (PKM2) and DUSP6, as well as the activation of ERK1/2 pathway. Our data confirmed the anti-cancer effect of siTRIM11 in human lung cancer by demonstrating inhibition of cancer cell proliferation, induction of apoptosis, prevention of 2-NBDG uptake, suppression of LD production, and prevention of lung cancer cell (A549) tumorigenicity in nude mice. The underlying mechanism involved the up-regulation of DUSP6 and the inhibition of ERK1/2 activity. Overexpression of TRIM11 induced tumorigenesis of NSCLC in vitro, and the activation of ERK1/2 was significantly reversed by DUSP6 overexpression or additional dn-MEK1 treatment. Interestingly, we confirmed TRIM11 as a deubiquitinase that regulated DUSP6 accumulation, indicating that lung cancer progression is regulated via the DUSP6-ERK1/2 pathway. In conclusion, TRIM11 is an oncogene in NSCLC, likely through the DUSP6-mediated ERK1/2 signaling pathway.
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Affiliation(s)
- Xiao-Lin Wang
- Department of Thoracic Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
| | - Shi-Chun Lu
- Department of Thoracic Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
| | - Chao Sun
- Department of Thoracic Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
| | - Wei-Guo Jin
- Department of Thoracic Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
| | - Yi-Wei Fan
- Department of Thoracic Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
| | - Yu-Sheng Shu
- Department of Thoracic Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
| | - Hong-Can Shi
- Department of Thoracic Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
| | - Ling-Feng Min
- Department of Respiratory Medicine, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, P. R. China
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42
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Ten Bosch GJA, Bolk J, 't Hart BA, Laman JD. Multiple sclerosis is linked to MAPK ERK overactivity in microglia. J Mol Med (Berl) 2021; 99:1033-1042. [PMID: 33948692 PMCID: PMC8313465 DOI: 10.1007/s00109-021-02080-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/31/2021] [Accepted: 04/19/2021] [Indexed: 12/18/2022]
Abstract
Reassessment of published observations in patients with multiple sclerosis (MS) suggests a microglial malfunction due to inappropriate (over)activity of the mitogen-activated protein kinase pathway ERK (MAPKERK). These observations regard biochemistry as well as epigenetics, and all indicate involvement of this pathway. Recent preclinical research on neurodegeneration already pointed towards a role of MAPK pathways, in particular MAPKERK. This is important as microglia with overactive MAPK have been identified to disturb local oligodendrocytes which can lead to locoregional demyelination, hallmark of MS. This constitutes a new concept on pathophysiology of MS, besides the prevailing view, i.e., autoimmunity. Acknowledged risk factors for MS, such as EBV infection, hypovitaminosis D, and smoking, all downregulate MAPKERK negative feedback phosphatases that normally regulate MAPKERK activity. Consequently, these factors may contribute to inappropriate MAPKERK overactivity, and thereby to neurodegeneration. Also, MAPKERK overactivity in microglia, as a factor in the pathophysiology of MS, could explain ongoing neurodegeneration in MS patients despite optimized immunosuppressive or immunomodulatory treatment. Currently, for these patients with progressive disease, no effective treatment exists. In such refractory MS, targeting the cause of overactive MAPKERK in microglia merits further investigation as this phenomenon may imply a novel treatment approach.
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Affiliation(s)
- George J A Ten Bosch
- Department of Medical Oncology, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.
| | - Jolande Bolk
- Department of Anesthesiology, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Bert A 't Hart
- Department Anatomy and Neuroscience, Amsterdam University Medical Center (VUmc), Amsterdam, The Netherlands.,Department Biomedical Sciences of Cells & Systems, University Medical Center Groningen, Groningen, The Netherlands
| | - Jon D Laman
- Department Biomedical Sciences of Cells & Systems, University Medical Center Groningen, Groningen, The Netherlands
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43
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Addison R, Weatherhead SC, Pawitri A, Smith GR, Rider A, Grantham HJ, Cockell SJ, Reynolds NJ. Therapeutic wavelengths of ultraviolet B radiation activate apoptotic, circadian rhythm, redox signalling and key canonical pathways in psoriatic epidermis. Redox Biol 2021; 41:101924. [PMID: 33812333 PMCID: PMC8050411 DOI: 10.1016/j.redox.2021.101924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/22/2021] [Accepted: 02/26/2021] [Indexed: 01/09/2023] Open
Abstract
Ultraviolet B radiation (UVB) exerts pleiotropic effects on human skin. DNA damage response and repair pathways are activated by UVB; if damage cannot be repaired, apoptosis ensues. Although cumulative UVB exposure predisposes to skin cancer, UVB phototherapy is widely used as an effective treatment for psoriasis. Previous studies defined the therapeutic action spectrum of UVB and showed that psoriasis is resistant to apoptosis. This study aimed to investigate early molecular responses within psoriasis plaques following irradiation with single equi-erythemogenic doses of clinically-effective (311 nm, narrow-band) compared to clinically-ineffective (290 nm) UVB. Forty-eight micro-dissected epidermal samples from 20 psoriatic patients were analyzed using microarrays. Our bioinformatic analysis compared gene expression between 311 nm irradiated, 290 nm irradiated and control psoriasis epidermis to specifically identify 311 nm UVB differentially expressed genes (DEGs) and their upstream regulatory pathways. Key DEGs and pathways were validated by immunohistochemical analysis. There was a dynamic induction and repression of 311 nm UVB DEGs between 6 h and 18 h, only a limited number of DEGs maintained their designated expression status between time-points. Key disease and function pathways included apoptosis, cell death, cell migration and leucocyte chemotaxis. DNA damage response pathways, NRF2-mediated oxidative stress response and P53 signalling were key nodes, interconnecting apoptosis and cell cycle arrest. Interferon signalling, dendritic cell maturation, granulocyte adhesion and atherosclerotic pathways were also differentially regulated. Consistent with these findings, top transcriptional regulators of 311 nm UVB DEGs related to: a) apoptosis, DNA damage response and cell cycle control; b) innate/acquired immune regulation and inflammation; c) hypoxia/redox response and angiogenesis; d) circadian rhythmicity; f) EGR/AP1 signalling and keratinocyte differentiation; and g) mitochondrial biogenesis. This research provides important insights into the molecular targets of 311 nm UVB, underscoring key roles for apoptosis and cell death. These and the other key pathways delineated may be central to the therapeutic effects of 311 nm in psoriasis.
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Affiliation(s)
- Rachel Addison
- Institute of Translational and Clinical Medicine, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK
| | - Sophie C Weatherhead
- Institute of Translational and Clinical Medicine, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK; Department of Dermatology, Royal Victoria Infirmary, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - Anandika Pawitri
- Institute of Translational and Clinical Medicine, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK
| | - Graham R Smith
- Bioinformatics Support Unit, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK
| | - Ashley Rider
- Institute of Translational and Clinical Medicine, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK
| | - Henry J Grantham
- Institute of Translational and Clinical Medicine, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK; Department of Dermatology, Royal Victoria Infirmary, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - Simon J Cockell
- Bioinformatics Support Unit, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK
| | - Nick J Reynolds
- Institute of Translational and Clinical Medicine, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle Upon Tyne, UK; Department of Dermatology, Royal Victoria Infirmary, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK.
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44
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Karpukhina A, Tiukacheva E, Dib C, Vassetzky YS. Control of DUX4 Expression in Facioscapulohumeral Muscular Dystrophy and Cancer. Trends Mol Med 2021; 27:588-601. [PMID: 33863674 DOI: 10.1016/j.molmed.2021.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 03/10/2021] [Accepted: 03/16/2021] [Indexed: 12/13/2022]
Abstract
DUX4, a gene encoding a transcription factor involved in early embryogenesis, is located within the D4Z4 subtelomeric repeat on chromosome 4q35. In most healthy somatic tissues, DUX4 is heavily repressed by multiple genetic and epigenetic mechanisms, and its aberrant expression is linked to facioscapulohumeral muscular dystrophy (FSHD) where it has been extensively studied. Recently, DUX4 expression has been implicated in oncogenesis, although this is much less explored. In this review, we discuss multiple levels of control of DUX4 expression, including enhancer-promoter interactions, DNA methylation, histone modifications, noncoding RNAs, and telomere positioning effect. We also connect disparate data on intrachromosomal contacts involving DUX4 and emphasize the feedback loops in DUX4 regulation. Finally, we bridge data on DUX4 in FSHD and cancer and discuss prospective approaches for future FSHD therapies and the potential outcomes of DUX4 inhibition in cancer.
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Affiliation(s)
- Anna Karpukhina
- UMR 9018, CNRS, Université Paris Saclay, Institut Gustave Roussy, Villejuif F-94805, France; Koltzov Institute of Developmental Biology, Moscow 117334, Russia; Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Eugenia Tiukacheva
- UMR 9018, CNRS, Université Paris Saclay, Institut Gustave Roussy, Villejuif F-94805, France
| | - Carla Dib
- UMR 9018, CNRS, Université Paris Saclay, Institut Gustave Roussy, Villejuif F-94805, France; Stanford University School of Medicine, Stanford, CA 94305-510, USA
| | - Yegor S Vassetzky
- UMR 9018, CNRS, Université Paris Saclay, Institut Gustave Roussy, Villejuif F-94805, France; Koltzov Institute of Developmental Biology, Moscow 117334, Russia.
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45
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Rajagopal P, Jayandharan GR, Krishnan UM. Evaluation of the Anticancer Activity of pH-Sensitive Polyketal Nanoparticles for Acute Myeloid Leukemia. Mol Pharm 2021; 18:2015-2031. [PMID: 33780253 DOI: 10.1021/acs.molpharmaceut.0c01243] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Polyketals are a class of acid-responsive polymers that have been relatively less explored for drug delivery applications compared to polyesters. The degradation of these polymers is accelerated in an acidic medium and does not result in acidic byproducts. Their biocompatibility depends on the diol used for the synthesis. The present work aims to synthesize, characterize, and fabricate nanospheres of an aliphatic polyketal for delivery of the nucleotide analogue cytarabine toward the treatment of acute myeloid leukemia (AML). The internalization mechanism of the nanospheres was probed, and its implication on the nuclear localization and escape from the endo-lysosomal compartments were studied. The drug-loaded polyketal nanoparticles reduced the cell viability to a greater extent compared with the free drug. The effect of the drug-loaded polyketal nanoparticles on the differential gene expression of leukemic cells was investigated for the first time to understand their therapeutic implications. It was found that treatment with drug-loaded polyketal nanoparticles downregulated AML-specific genes involved in cell proliferation and recurrence compared to the free drug. The protein expression studies were performed for selected genes obtained from gene expression analysis. Biodistribution studies showed that the poly(cyclohexane-1,4-diyl acetone dimethylene ketal) (PCADK) nanoparticles exhibit prolonged circulation time. Overall, our results suggest that polyketal-based delivery of cytarabine represents a more effective alternative strategy for AML therapy.
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Affiliation(s)
- Pratheppa Rajagopal
- Centre for Nanotechnology & Advanced Biomaterials, SASTRA Deemed University Thanjavur 613401, India.,School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, India
| | - Giridhara R Jayandharan
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur 208016, Uttar Pradesh, India.,The Mehta Family Centre for Engineering In Medicine, Indian Institute of Technology, Kanpur 208016, Uttar Pradesh, India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology & Advanced Biomaterials, SASTRA Deemed University Thanjavur 613401, India.,School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, India.,School of Arts, Science & Humanities, SASTRA Deemed University, Thanjavur 613401, India
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Lin X, Han L, Gu C, Lai Y, Lai Q, Li Q, He C, Meng Y, Pan L, Liu S, Li A. MiR-452-5p promotes colorectal cancer progression by regulating an ERK/MAPK positive feedback loop. Aging (Albany NY) 2021; 13:7608-7626. [PMID: 33658394 PMCID: PMC7993669 DOI: 10.18632/aging.202657] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/30/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND MiR-452-5p plays an essential role in the development of a variety of tumors, but little is known about its biological function and mechanism in colorectal cancer (CRC). METHODS The expression levels of miR-452-5p in CRC tissues and cells were detected by real-time quantitative PCR (qRT-PCR). Besides, the biological effects of miR-452-5p on CRC were investigated by functional experiments in vitro and in vivo. Furthermore, bioinformatics analysis, dual-luciferase reporter assay, chromatin immunecipitation assay, western blotting and recovery experiments were implemented to investigate the underlying molecular mechanism. RESULTS The expression level of miR-452-5p was up-regulated in CRC tissues. MiR-452-5p promoted CRC cell proliferation, cell cycle transition and chemoresistance, and inhibited cell apoptosis. Moreover, miR-452-5p directly targeted PKN2 and DUSP6 and subsequently activated the ERK/MAPK signaling pathway, and it was transcriptionally regulated by c-Jun. CONCLUSION To conclude, miR-452-5p expression is up-regulated in CRC, which promotes the progression of CRC by activating the miR-452-5p-PKN2/DUSP6-c-Jun positive feedback loop. These findings indicate that miR-452-5p may act as a potential therapeutic target and clinical response biomarker for CRC.
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Affiliation(s)
- Xin Lin
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Lu Han
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Chuncai Gu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yihong Lai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Qiuhua Lai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Qingyuan Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Chengcheng He
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yan Meng
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Lei Pan
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Side Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Aimin Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
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Shneider BL, Cortes-Santiago N, Schady DA, Krishnamoorthy S, Thevananther S, Rajapakshe K, Perera D, Huang S, Coarfa C. Constitutive activation of mitogen-activated protein kinase kinase (MEK1) in ileal enterocytes leads to dysplasia and a predisposition to cancer. Am J Physiol Gastrointest Liver Physiol 2021; 320:G366-G379. [PMID: 33470189 PMCID: PMC8202241 DOI: 10.1152/ajpgi.00065.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Activation of mitogen-activated protein kinases (MAPKs) is a key factor in the pathogenesis of cancer, although the specific role of mitogen-activated protein kinase kinase (MEK1) is not well understood. Villin promoter-driven Cre expression was used to excise a floxed stop cassette from a phosphomimetically constitutively activated MEK1 (caMEK1) expression construct in the intestine of C57BL/6 mice. Zygosity status of caMEK1 afforded assessment of the dose dependence of the effect. The expected mendelian distribution of genotypes and sex was observed in 443 progenies. Between 21 and 63 days of life, caMEK1 had no effect on body weight in male mice, but reduced body weight in female mice homozygous for caMEK1. At 10 wk of age, the ileum of caMEK1-expressing mice was characterized by the finding of dysplasia and profound changes in overall architecture. Paneth cells were nearly absent in caMEK1 homozygotes. Targeted proteomic profiling via reverse phase protein array analyses with confirmatory Western blotting revealed significant changes in protein and phosphoprotein expression, including upregulation of proteins downstream of MEK1, associated with enhanced markers of proliferation, diminished apoptosis, alterations in cell-fate determination, cell-cell interactions, and tight junctions. Long-term viability of caMEK1 homozygous mice was reduced with no survival beyond 1 yr. Invasive adenocarcinoma developed in three of ten older mice [15 wk (homozygous), 26 wk (homozygous), and 35 wk (heterozygous) of age]. Expression of caMEK1 in enterocytes leads to marked derangements in the intestinal epithelium, which is associated with a predisposition to the development of invasive cancer.NEW & NOTEWORTHY The ileum of mice with constitutive expression of activated MEK1 (via phosphomimetic changes) in enterocytes is markedly abnormal with architectural distortion and cytologic atypia, which evolves into an adenoma invasive carcinoma sequence. Phosphoproteomic analysis reveals upregulation of proteins downstream of MEK1, associated with enhanced markers of proliferation, diminished apoptosis, alterations in cell-fate determination, cell-cell interactions, and tight junctions. This novel model provides new insights into intestinal homeostasis and carcinogenesis.
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Affiliation(s)
- Benjamin L. Shneider
- 1Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | | | - Deborah A. Schady
- 2Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
| | - Swapna Krishnamoorthy
- 1Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Sundararajah Thevananther
- 1Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Kimal Rajapakshe
- 3Department of Molecular and Cellular Biology, Dan L. Duncan Comprehensive Cancer Center, Houston, Texas
| | - Dimuthu Perera
- 3Department of Molecular and Cellular Biology, Dan L. Duncan Comprehensive Cancer Center, Houston, Texas
| | - Shixia Huang
- 3Department of Molecular and Cellular Biology, Dan L. Duncan Comprehensive Cancer Center, Houston, Texas
| | - Cristian Coarfa
- 3Department of Molecular and Cellular Biology, Dan L. Duncan Comprehensive Cancer Center, Houston, Texas,4Center for Prevention and Environmental Health, Baylor College of Medicine, Houston, Texas
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48
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Boudjadi S, Pandey PR, Chatterjee B, Nguyen TH, Sun W, Barr FG. A Fusion Transcription Factor-Driven Cancer Progresses to a Fusion-Independent Relapse via Constitutive Activation of a Downstream Transcriptional Target. Cancer Res 2021; 81:2930-2942. [PMID: 33589519 DOI: 10.1158/0008-5472.can-20-1613] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 12/22/2020] [Accepted: 02/11/2021] [Indexed: 11/16/2022]
Abstract
Targeted monotherapies usually fail due to development of resistance by a subgroup of cells that evolve into recurrent tumors. Alveolar rhabdomyosarcoma is an aggressive myogenic soft-tissue cancer that is associated with a characteristic PAX3-FOXO1 gene fusion encoding a novel fusion transcription factor. In our myoblast model of PAX3-FOXO1-induced rhabdomyosarcoma, deinduction of PAX3-FOXO1 simulates a targeted therapy that antagonizes the fusion oncoprotein. This simulated therapy results initially in regression of the primary tumors, but PAX3-FOXO1-independent recurrent tumors eventually form after a delay. We report here that upregulation of FGF8, a direct transcriptional target of PAX3-FOXO1, is a mechanism responsible for PAX3-FOXO1-independent tumor recurrence. As a transcriptional target of PAX3-FOXO1, FGF8 promoted oncogenic activity in PAX3-FOXO1-expressing primary tumors that developed in the myoblast system. In the recurrent tumors forming after PAX3-FOXO1 deinduction, FGF8 expression was necessary and sufficient to induce PAX3-FOXO1-independent tumor growth through an autocrine mechanism. FGF8 was also expressed in human PAX3-FOXO1-expressing rhabdomyosarcoma cell lines and contributed to proliferation and transformation. In a human rhabdomyosarcoma cell line with reduced PAX3-FOXO1 expression, FGF8 upregulation rescued oncogenicity and simulated recurrence after PAX3-FOXO1-targeted therapy. We propose that deregulated expression of a PAX3-FOXO1 transcriptional target can generate resistance to therapy directed against this oncogenic transcription factor and postulate that this resistance mechanism may ultimately be countered by therapeutic approaches that antagonize the corresponding downstream pathways. SIGNIFICANCE: In a model of cancer initiated by a fusion transcription factor, constitutive activation of a downstream transcriptional target leads to fusion oncoprotein-independent recurrences, thereby highlighting a novel progression mechanism and therapeutic target.
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Affiliation(s)
- Salah Boudjadi
- Laboratory of Pathology, Center for Cancer Research, NCI, Bethesda, Maryland
| | - Puspa Raj Pandey
- Laboratory of Pathology, Center for Cancer Research, NCI, Bethesda, Maryland
| | | | - Thanh Hung Nguyen
- Laboratory of Pathology, Center for Cancer Research, NCI, Bethesda, Maryland
| | - Wenyue Sun
- Laboratory of Pathology, Center for Cancer Research, NCI, Bethesda, Maryland
| | - Frederic G Barr
- Laboratory of Pathology, Center for Cancer Research, NCI, Bethesda, Maryland.
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Bhore N, Wang BJ, Wu PF, Lee YL, Chen YW, Hsu WM, Lee H, Huang YS, Yang DI, Liao YF. Dual-Specificity Phosphatase 15 (DUSP15) Modulates Notch Signaling by Enhancing the Stability of Notch Protein. Mol Neurobiol 2021; 58:2204-2214. [PMID: 33417224 DOI: 10.1007/s12035-020-02254-0] [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: 03/24/2020] [Accepted: 12/08/2020] [Indexed: 11/27/2022]
Abstract
Dual-specificity phosphatases (DUSPs) comprise a unique group of enzymes that dephosphorylate signaling proteins at both phospho-serine/threonine and phospho-tyrosine residues. Since Notch signaling is an essential pathway for neuronal cell fate determination and development that is also upregulated in Alzheimer's disease tissues, we sought to explore whether and how DUSPs may impact Notch processing. Our results show that overexpression of DUSP15 concomitantly and dose-dependently increased the steady-state levels of recombinant Notch (extracellular domain-truncated Notch, NotchΔE) protein and its cleaved product, Notch intracellular domain (NICD). The overall ratio of NotchΔE to NICD was unchanged by overexpression of DUSP15, suggesting that the effect is independent of γ-secretase. Interestingly, overexpression of DUSP15 also dose-dependently increased phosphorylated ERK1/2. Phosphorylated ERK1/2 is known to be positively correlated with Notch protein level, and we found that DUSP15-mediated regulation of Notch was dependent on ERK1/2 activity. Together, our findings reveal the existence of a previously unidentified DUSP15-ERK1/2-Notch signaling axis, which could potentially play a role in neuronal differentiation and neurological disease.
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Affiliation(s)
- Noopur Bhore
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan.,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan
| | - Bo-Jeng Wang
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan
| | - Po-Fan Wu
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan.,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University, Academia Sinica, Taipei, Taiwan
| | - Yen-Lurk Lee
- TIGP in Molecular Medicine, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yun-Wen Chen
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan
| | - Wen-Ming Hsu
- Department of Surgery, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsinyu Lee
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yi-Shuian Huang
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University, Academia Sinica, Taipei, Taiwan.,TIGP in Molecular Medicine, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Ding-I Yang
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Yung-Feng Liao
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan. .,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan. .,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University, Academia Sinica, Taipei, Taiwan.
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50
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Enhanced Malignant Phenotypes of Glioblastoma Cells Surviving NPe6-Mediated Photodynamic Therapy are Regulated via ERK1/2 Activation. Cancers (Basel) 2020; 12:cancers12123641. [PMID: 33291680 PMCID: PMC7761910 DOI: 10.3390/cancers12123641] [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] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/27/2020] [Accepted: 11/29/2020] [Indexed: 12/12/2022] Open
Abstract
To manage refractory and invasive glioblastomas (GBM)s, photodynamic therapy (PDT) using talaporfin sodium (NPe6) (NPe6-PDT) was recently approved in clinical practice. However, the molecular machineries regulating resistance against NPe6-PDT in GBMs and mechanisms underlying the changes in GBM phenotypes following NPe6-PDT remain unknown. Herein, we established an in vitro NPe6-mediated PDT model using human GBM cell lines. NPe6-PDT induced GBM cell death in a NPe6 dose-dependent manner. However, this NPe6-PDT-induced GBM cell death was not completely blocked by the pan-caspase inhibitor, suggesting NPe6-PDT induces both caspase-dependent and -independent cell death. Moreover, treatment with poly (ADP-ribose) polymerase inhibitor blocked NPe6-PDT-triggered caspase-independent GBM cell death. Next, it was also revealed resistance to re-NPe6-PDT of GBM cells and GBM stem cells survived following NPe6-PDT (NPe6-PDT-R cells), as well as migration and invasion of NPe6-PDT-R cells were enhanced. Immunoblotting of NPe6-PDT-R cells to assess the behavior of the proteins that are known to be stress-induced revealed that only ERK1/2 activation exhibited the same trend as migration. Importantly, treatment with the MEK1/2 inhibitor trametinib reversed resistance against re-NPe6-PDT and suppressed the enhanced migration and invasion of NPe6-PDT-R cells. Overall, enhanced ERK1/2 activation is suggested as a key regulator of elevated malignant phenotypes of GBM cells surviving NPe6-PDT and is therefore considered as a potential therapeutic target against GBM.
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