1
|
Priester J, Meier-Soelch J, Weiser H, Heylmann D, Weber A, Linne U, Kracht M. Metabolic labeling and LC-MS/MS-based identification of interleukin-1α-induced secreted proteomes from epithelial cells in the presence or absence of serum. STAR Protoc 2023; 4:102195. [PMID: 37004159 PMCID: PMC10090805 DOI: 10.1016/j.xpro.2023.102195] [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: 11/29/2022] [Revised: 02/11/2023] [Accepted: 03/03/2023] [Indexed: 04/03/2023] Open
Abstract
The unbiased identification of cytokine-induced, secreted proteins from cells cultured in serum-containing medium is challenging. Here, we describe an experimental and bioinformatics workflow to label interleukin-1α-regulated proteins in living cells with the methionine analogue L-homopropargylglycine. We detail their purification and identification by means of CLICK-chemistry-based biotinylation followed by nanoHPLC-MS/MS. A side-by-side comparison of enriched proteins and their ontologies to serum-free conditions demonstrates the sensitivity and specificity of this approach to study the inducible secreted proteomes of epithelial cells.
Collapse
Affiliation(s)
- Jasmin Priester
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Johanna Meier-Soelch
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Hendrik Weiser
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Daniel Heylmann
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Axel Weber
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Uwe Linne
- Mass Spectrometry Facility of the Department of Chemistry, Philipps University, 35032 Marburg, Germany.
| | - Michael Kracht
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany; Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany; Cardio-Pulmonary Institute (CPI), Giessen, Germany.
| |
Collapse
|
2
|
Cheng KJ, Mohamed EHM, Syafruddin SE, Ibrahim ZA. Interleukin-1 alpha and high mobility group box-1 secretion in polyinosinic:polycytidylic-induced colorectal cancer cells occur via RIPK1-dependent mechanism and participate in tumourigenesis. J Cell Commun Signal 2023; 17:189-208. [PMID: 35534784 PMCID: PMC10030748 DOI: 10.1007/s12079-022-00681-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 04/18/2022] [Indexed: 10/18/2022] Open
Abstract
Pathogenic infections have significant roles in the pathogenesis of colorectal cancer (CRC). These infections induce the secretion of various damage-associated molecular patterns (DAMPs) including interleukin-1 alpha (IL-1α) and high mobility group box-1 (HMGB1). Despite their implication in CRC pathogenesis, the mechanism(s) that modulate the secretion of IL-1α and HMGB1, along with their roles in promoting CRC tumourigenesis remain poorly understood. To understand the secretory mechanism, HT-29 and SW480 cells were stimulated with infectious mimetics; polyinosinic:polycytidylic acid [Poly(I:C)], lipopolysaccharide (LPS) and pro-inflammatory stimuli; tumour necrosis factor-alpha (TNF-α). IL-1α and HMGB1 secretion levels upon stimulation were determined via ELISA. Mechanism(s) mediating IL-1α and HMGB1 secretion in CRC cells were characterized using pharmacological inhibitors and CRISPR-Cas9 gene editing targeting relevant pathways. Recombinant IL-1α and HMGB1 were utilized to determine their impact in modulating pro-tumourigenic properties of CRC cells. Pharmacological inhibition showed that Poly(I:C)-induced IL-1α secretion was mediated through endoplasmic reticulum (ER) stress and RIPK1 signalling pathway. The secretion of HMGB1 was RIPK1-dependent but independent of ER stress. RIPK1-targeted CRC cell pools exhibited decreased cell viability upon Poly(I:C) stimulation, suggesting a potential role of RIPK1 in CRC cells survival. IL-1α has both growth-promoting capabilities and stimulates the production of pro-metastatic mediators, while HMGB1 only exhibits the latter; with its redox status having influence. We demonstrated a potential role of RIPK1-dependent signalling pathway in mediating the secretion of IL-1α and HMGB1 in CRC cells, which in turn enhances CRC tumorigenesis. RIPK1, IL-1α and HMGB1 may serve as potential therapeutic targets to mitigate CRC progression.
Collapse
Affiliation(s)
- Kim Jun Cheng
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | | | - Saiful Effendi Syafruddin
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Jalan Yaacob Latiff, Bandar Tun Razak, 56000, Kuala Lumpur, Malaysia
| | - Zaridatul Aini Ibrahim
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| |
Collapse
|
3
|
Pfisterer M, Schmitz ML. Testing the Effect of Histone Acetyltransferases on Local Chromatin Compaction. Methods Mol Biol 2023; 2589:361-376. [PMID: 36255637 DOI: 10.1007/978-1-0716-2788-4_24] [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] [Indexed: 06/16/2023]
Abstract
Experiments determining the chromatin association of histone acetylases (HATs) and deacetylases (HDACs) at the genome-wide level provide precise maps of locus occupancy, but do not allow conclusions on the functional consequences of this locus-specific enrichment. Here we describe a protocol that allows tethering of HATs or HDACs to specific genomic loci upon fusion with a fluorescent protein and a DNA-binding protein such as the E. coli Lac repressor (LacI), which binds to genomically inserted lac operon sequences (lacO) via DNA/protein interactions. Integration of these lacO sequences into a genomic region of interest allows to monitor the functional consequences of HAT/HDAC targeting on chromatin (de)compaction, histone modification, and interaction with other proteins by quantitative light microscopy, as described here. As DNA-binding of LacI can be tightly controlled by the addition of galactose-derivatives, this method also allows to monitor the effects of locus-specific recruitment in a time-resolved manner.
Collapse
Affiliation(s)
| | - M Lienhard Schmitz
- Institute of Biochemistry, Justus-Liebig-University, Giessen, Germany.
- Member of the German Center for Lung Research, Giessen, Germany.
| |
Collapse
|
4
|
Park SA, Lim YJ, Ku WL, Zhang D, Cui K, Tang LY, Chia C, Zanvit P, Chen Z, Jin W, Wang D, Xu J, Liu O, Wang F, Cain A, Guo N, Nakatsukasa H, Wu C, Zhang YE, Zhao K, Chen W. Opposing functions of circadian protein DBP and atypical E2F family E2F8 in anti-tumor Th9 cell differentiation. Nat Commun 2022; 13:6069. [PMID: 36241625 PMCID: PMC9568563 DOI: 10.1038/s41467-022-33733-8] [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: 10/08/2021] [Accepted: 09/30/2022] [Indexed: 12/24/2022] Open
Abstract
Interleukin-9 (IL-9)-producing CD4+ T helper cells (Th9) have been implicated in allergy/asthma and anti-tumor immunity, yet molecular insights on their differentiation from activated T cells, driven by IL-4 and transforming growth factor-beta (TGF-β), is still lacking. Here we show opposing functions of two transcription factors, D-binding protein (DBP) and E2F8, in controlling Th9 differentiation. Specifically, TGF-β and IL-4 signaling induces phosphorylation of the serine 213 site in the linker region of the Smad3 (pSmad3L-Ser213) via phosphorylated p38, which is necessary and sufficient for Il9 gene transcription. We identify DBP and E2F8 as an activator and repressor, respectively, for Il9 transcription by pSmad3L-Ser213. Notably, Th9 cells with siRNA-mediated knockdown for Dbp or E2f8 promote and suppress tumor growth, respectively, in mouse tumor models. Importantly, DBP and E2F8 also exhibit opposing functions in regulating human TH9 differentiation in vitro. Thus, our data uncover a molecular mechanism of Smad3 linker region-mediated, opposing functions of DBP and E2F8 in Th9 differentiation.
Collapse
Affiliation(s)
- Sang-A Park
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Yun-Ji Lim
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Wai Lim Ku
- grid.94365.3d0000 0001 2297 5165Systemic Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 31 Center Drive, Bethesda, 20892 MD USA
| | - Dunfang Zhang
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Kairong Cui
- grid.94365.3d0000 0001 2297 5165Systemic Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 31 Center Drive, Bethesda, 20892 MD USA
| | - Liu-Ya Tang
- grid.94365.3d0000 0001 2297 5165Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, 20892 MD USA
| | - Cheryl Chia
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Peter Zanvit
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Zuojia Chen
- grid.94365.3d0000 0001 2297 5165Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, 20892 MD USA
| | - Wenwen Jin
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Dandan Wang
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Junji Xu
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Ousheng Liu
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Fu Wang
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Alexander Cain
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Nancy Guo
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Hiroko Nakatsukasa
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| | - Chuan Wu
- grid.94365.3d0000 0001 2297 5165Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, 20892 MD USA
| | - Ying E. Zhang
- grid.94365.3d0000 0001 2297 5165Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, 20892 MD USA
| | - Keji Zhao
- grid.94365.3d0000 0001 2297 5165Systemic Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 31 Center Drive, Bethesda, 20892 MD USA
| | - WanJun Chen
- grid.94365.3d0000 0001 2297 5165Mucosal Immunology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Bethesda, 20892 MD USA
| |
Collapse
|
5
|
An Expanded Interplay Network between NF-κB p65 (RelA) and E2F1 Transcription Factors: Roles in Physiology and Pathology. Cancers (Basel) 2022; 14:cancers14205047. [PMID: 36291831 PMCID: PMC9600032 DOI: 10.3390/cancers14205047] [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: 08/30/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 11/17/2022] Open
Abstract
Transcription Factors (TFs) are the main regulators of gene expression, controlling among others cell homeostasis, identity, and fate. TFs may either act synergistically or antagonistically on nearby regulatory elements and their interplay may activate or repress gene expression. The family of NF-κB TFs is among the most important TFs in the regulation of inflammation, immunity, and stress-like responses, while they also control cell growth and survival, and are involved in inflammatory diseases and cancer. The family of E2F TFs are major regulators of cell cycle progression in most cell types. Several studies have suggested the interplay between these two TFs in the regulation of numerous genes controlling several biological processes. In the present study, we compared the genomic binding landscape of NF-κB RelA/p65 subunit and E2F1 TFs, based on high throughput ChIP-seq and RNA-seq data in different cell types. We confirmed that RelA/p65 has a binding profile with a high preference for distal enhancers bearing active chromatin marks which is distinct to that of E2F1, which mostly generates promoter-specific binding. Moreover, the RelA/p65 subunit and E2F1 cistromes have limited overlap and tend to bind chromatin that is in an active state even prior to immunogenic stimulation. Finally, we found that a fraction of the E2F1 cistrome is recruited by NF-κΒ near pro-inflammatory genes following LPS stimulation in immune cell types.
Collapse
|
6
|
Mansouri S, Heylmann D, Stiewe T, Kracht M, Savai R. Cancer genome and tumor microenvironment: Reciprocal crosstalk shapes lung cancer plasticity. eLife 2022; 11:79895. [PMID: 36074553 PMCID: PMC9457687 DOI: 10.7554/elife.79895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 08/12/2022] [Indexed: 12/24/2022] Open
Abstract
Lung cancer classification and treatment has been revolutionized by improving our understanding of driver mutations and the introduction of tumor microenvironment (TME)-associated immune checkpoint inhibitors. Despite the significant improvement of lung cancer patient survival in response to either oncogene-targeted therapy or anticancer immunotherapy, many patients show initial or acquired resistance to these new therapies. Recent advances in genome sequencing reveal that specific driver mutations favor the development of an immunosuppressive TME phenotype, which may result in unfavorable outcomes in lung cancer patients receiving immunotherapies. Clinical studies with follow-up after immunotherapy, assessing oncogenic driver mutations and the TME immune profile, not only reveal the underlying potential molecular mechanisms in the resistant lung cancer patients but also hold the key to better treatment choices and the future of personalized medicine. In this review, we discuss the crosstalk between cancer cell genomic features and the TME to reveal the impact of genetic alterations on the TME phenotype. We also provide insights into the regulatory role of cellular TME components in defining the genetic landscape of cancer cells during tumor development.
Collapse
Affiliation(s)
- Siavash Mansouri
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
| | - Daniel Heylmann
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, Giessen, Germany
| | - Thorsten Stiewe
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany.,Institute of Molecular Oncology, Marburg, Germany.,Member of the German Center for Lung Research (DZL), Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany
| | - Michael Kracht
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, Giessen, Germany.,Member of the German Center for Lung Research (DZL), Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany.,Member of the Cardio-Pulmonary Institute (CPI), Frankfurt, Germany
| | - Rajkumar Savai
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany.,Member of the German Center for Lung Research (DZL), Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany.,Member of the Cardio-Pulmonary Institute (CPI), Frankfurt, Germany.,Frankfurt Cancer Institute (FCI), Goethe University Frankfurt, Frankfurt, Germany
| |
Collapse
|
7
|
Kiani K, Sanford EM, Goyal Y, Raj A. Changes in chromatin accessibility are not concordant with transcriptional changes for single-factor perturbations. Mol Syst Biol 2022; 18:e10979. [PMID: 36069349 PMCID: PMC9450098 DOI: 10.15252/msb.202210979] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 08/11/2022] [Accepted: 08/19/2022] [Indexed: 11/23/2022] Open
Abstract
A major goal in the field of transcriptional regulation is the mapping of changes in the binding of transcription factors to the resultant changes in gene expression. Recently, methods for measuring chromatin accessibility have enabled us to measure changes in accessibility across the genome, which are thought to correspond to transcription factor‐binding events. In concert with RNA‐sequencing, these data in principle enable such mappings; however, few studies have looked at their concordance over short‐duration treatments with specific perturbations. Here, we used tandem, bulk ATAC‐seq, and RNA‐seq measurements from MCF‐7 breast carcinoma cells to systematically evaluate the concordance between changes in accessibility and changes in expression in response to retinoic acid and TGF‐β. We found two classes of genes whose expression showed a significant change: those that showed some changes in the accessibility of nearby chromatin, and those that showed virtually no change despite strong changes in expression. The peaks associated with genes in the former group had lower baseline accessibility prior to exposure to signal. Focusing the analysis specifically on peaks with motifs for transcription factors associated with retinoic acid and TGF‐β signaling did not reduce the lack of correspondence. Analysis of paired chromatin accessibility and gene expression data from distinct paths along the hematopoietic differentiation trajectory showed a much stronger correspondence, suggesting that the multifactorial biological processes associated with differentiation may lead to changes in chromatin accessibility that reflect rather than driving altered transcriptional status. Together, these results show many gene expression changes can happen independently of changes in the accessibility of local chromatin in the context of a single‐factor perturbation.
Collapse
Affiliation(s)
- Karun Kiani
- Genetics and Epigenetics, Cell and Molecular Biology Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Eric M Sanford
- Genomics and Computational Biology Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Yogesh Goyal
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.,Center for Synthetic Biology, Northwestern University, Chicago, Illinois, USA
| | - Arjun Raj
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| |
Collapse
|
8
|
Post-Transcriptional Control of mRNA Metabolism and Protein Secretion: The Third Level of Regulation within the NF-κB System. Biomedicines 2022; 10:biomedicines10092108. [PMID: 36140209 PMCID: PMC9495616 DOI: 10.3390/biomedicines10092108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/12/2022] [Accepted: 08/21/2022] [Indexed: 11/17/2022] Open
Abstract
The NF-κB system is a key transcriptional pathway that regulates innate and adaptive immunity because it triggers the activation and differentiation processes of lymphocytes and myeloid cells during immune responses. In most instances, binding to cytoplasmic inhibitory IκB proteins sequesters NF-κB into an inactive state, while a plethora of external triggers activate three complex signaling cascades that mediate the release and nuclear translocation of the NF-κB DNA-binding subunits. In addition to these cytosolic steps (level 1 of NF-κB regulation), NF-κB activity is also controlled in the nucleus by signaling events, cofactors and the chromatin environment to precisely determine chromatin recruitment and the specificity and timing of target gene transcription (level 2 of NF-κB regulation). Here, we discuss an additional layer of the NF-κB system that manifests in various steps of post-transcriptional gene expression and protein secretion. This less-studied regulatory level allows reduction of (transcriptional) noise and signal integration and endows time-shifted control of the secretion of inflammatory mediators. Detailed knowledge of these steps is important, as dysregulated post-transcriptional NF-κB signaling circuits are likely to foster chronic inflammation and contribute to the formation and maintenance of a tumor-promoting microenvironment.
Collapse
|
9
|
Lin YT, Lin J, Liu YE, Hsu KW, Hsieh CC, Chen DR, Wu HT. Nafamostat mesylate overcomes endocrine resistance of breast cancer through epigenetic regulation of CDK4 and CDK6 expression. Transl Oncol 2021; 15:101302. [PMID: 34890965 PMCID: PMC8665409 DOI: 10.1016/j.tranon.2021.101302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 11/29/2021] [Indexed: 11/30/2022] Open
Abstract
Nafamostat mesylate (NM) causes apoptosis and suppresses metastasis of endocrine-resistant ER-positive breast cancer (ERPBC). Epigenetic downregulation of CDK4/CDK6 by NM in endocrine-resistant ERPBC via disruption of binding of H3K27Ac on promoter region. Combination of nafamostat mesylate and CDK4/6 inhibitor synergistically overcomes endocrine resistance of breast cancer. Nafamostat mesylate would be a well-efficient drug for endocrine-resistant ERPBC.
Breast cancer is common worldwide, and the estrogen receptor-positive subtype accounts for approximately 70% of breast cancer in women. Tamoxifen and fulvestrant are drugs currently used for endocrinal therapy. Breast cancer exhibiting endocrine resistance can undergo metastasis and lead to the death of breast cancer patients. Drug repurposing is an active area of research in clinical medicine. We found that nafamostat mesylate, clinically used for patients with pancreatitis and disseminated intravascular coagulation, acts as an anti-cancer drug for endocrine-resistant estrogen receptor-positive breast cancer (ERPBC). Epigenetic repression of CDK4 and CDK6 by nafamostat mesylate induced apoptosis and suppressed the metastasis of ERPBC through the deacetylation of Histone 3 Lysine 27. A combination of nafamostat mesylate and CDK4/6 inhibitor synergistically overcame endocrine resistance in ERPBC. Nafamostat mesylate might be an essential adjuvant or alternative drug for the treatment of endocrine-resistant ERPBC due to the low cost-efficiency of the CDK4/6 inhibitor.
Collapse
Affiliation(s)
- Yueh-Te Lin
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Gueishan Dist., Taoyuan 333, Taiwan
| | - Joseph Lin
- Comprehensive Breast Cancer Center, Changhua Christian Hospital, Changhua 500, Taiwan; Department of Animal Science and Biotechnology, Tunghai University, Taichung 407, Taiwan
| | - Yi-En Liu
- Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan
| | - Kai-Wen Hsu
- Research Center for Cancer Biology, Institute of New Drug Development, China Medical University, Taichung 404, Taiwan
| | - Chang-Chi Hsieh
- Department of Animal Science and Biotechnology, Tunghai University, Taichung 407, Taiwan
| | - Dar-Ren Chen
- Comprehensive Breast Cancer Center, Changhua Christian Hospital, Changhua 500, Taiwan; Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan; School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Han-Tsang Wu
- Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan.
| |
Collapse
|
10
|
Meier-Soelch J, Mayr-Buro C, Juli J, Leib L, Linne U, Dreute J, Papantonis A, Schmitz ML, Kracht M. Monitoring the Levels of Cellular NF-κB Activation States. Cancers (Basel) 2021; 13:cancers13215351. [PMID: 34771516 PMCID: PMC8582385 DOI: 10.3390/cancers13215351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 10/18/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary In stress and disease situations, cells must rapidly and in a coordinated manner change their gene expression patterns to respond adequately. The NF-κB system comprises five transcription factors that are released from the cytosol to enter the nucleus in response to a wide range of extracellular stimuli via a complex cytosolic signaling system. In the nucleus, activated NF-κB dimers bind to specific chromatin loci across the entire genome and induce the expression of a broad repertoire of genes that regulate immune and inflammatory responses. Consistent with its biological importance, the extent of NF-κB activity is regulated and controlled at multiple levels. The aim of this review is to comprehensively present and discuss the currently available conceptual and methodological approaches to monitor the molecular activation status of the NF-κB system, including multi-level single cell analysis. Abstract The NF-κB signaling system plays an important regulatory role in the control of many biological processes. The activities of NF-κB signaling networks and the expression of their target genes are frequently elevated in pathophysiological situations including inflammation, infection, and cancer. In these conditions, the outcome of NF-κB activity can vary according to (i) differential activation states, (ii) the pattern of genomic recruitment of the NF-κB subunits, and (iii) cellular heterogeneity. Additionally, the cytosolic NF-κB activation steps leading to the liberation of DNA-binding dimers need to be distinguished from the less understood nuclear pathways that are ultimately responsible for NF-κB target gene specificity. This raises the need to more precisely determine the NF-κB activation status not only for the purpose of basic research, but also in (future) clinical applications. Here we review a compendium of different methods that have been developed to assess the NF-κB activation status in vitro and in vivo. We also discuss recent advances that allow the assessment of several NF-κB features simultaneously at the single cell level.
Collapse
Affiliation(s)
- Johanna Meier-Soelch
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Christin Mayr-Buro
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Jana Juli
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Lisa Leib
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| | - Uwe Linne
- Mass Spectrometry Facility of the Department of Chemistry, Philipps University, 35032 Marburg, Germany
| | - Jan Dreute
- Institute of Biochemistry, Justus Liebig University, 35392 Giessen, Germany
| | - Argyris Papantonis
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - M Lienhard Schmitz
- Institute of Biochemistry, Justus Liebig University, 35392 Giessen, Germany
| | - Michael Kracht
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, 35392 Giessen, Germany
| |
Collapse
|
11
|
Roupakia E, Chavdoula E, Karpathiou G, Vatsellas G, Chatzopoulos D, Mela A, Gillette JM, Kriegsmann K, Kriegsmann M, Batistatou A, Goussia A, Marcu KB, Karteris E, Klinakis A, Kolettas E. Canonical NF-κB Promotes Lung Epithelial Cell Tumour Growth by Downregulating the Metastasis Suppressor CD82 and Enhancing Epithelial-to-Mesenchymal Cell Transition. Cancers (Basel) 2021; 13:cancers13174302. [PMID: 34503110 PMCID: PMC8428346 DOI: 10.3390/cancers13174302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/17/2021] [Accepted: 08/24/2021] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Canonical NF-κB signalling pathway acts as a tumour promoter in several types of cancer including non-small cell lung cancer (NSCLC), but the mechanism(s) by which it contributes to NSCLC is still under investigation. We show here that NF-κB RelA/p65 is required for the tumour growth of human NSCLC cells grown in vivo as xenografts in immune-compromised mice. RNA-seq transcriptome profile analysis identified the metastasis suppressor CD82/KAI1/TSPAN27 as a canonical NF-κB target. Loss of CD82 correlated with malignancy. RelA/p65 stimulates cell migration and epithelial-to-mesenchymal cell transition (EMT), mediated, in part, by CD82/KAI1, through integrin-mediated signalling, thus, identifying a mechanism mediating NF-κB RelA/p65 lung tumour promoting function. Abstract Background: The development of non-small cell lung cancer (NSCLC) involves the progressive accumulation of genetic and epigenetic changes. These include somatic oncogenic KRAS and EGFR mutations and inactivating TP53 tumour suppressor mutations, leading to activation of canonical NF-κB. However, the mechanism(s) by which canonical NF-κB contributes to NSCLC is still under investigation. Methods: Human NSCLC cells were used to knock-down RelA/p65 (RelA/p65KD) and investigate its impact on cell growth, and its mechanism of action by employing RNA-seq analysis, qPCR, immunoblotting, immunohistochemistry, immunofluorescence and functional assays. Results: RelA/p65KD reduced the proliferation and tumour growth of human NSCLC cells grown in vivo as xenografts in immune-compromised mice. RNA-seq analysis identified canonical NF-κB targets mediating its tumour promoting function. RelA/p65KD resulted in the upregulation of the metastasis suppressor CD82/KAI1/TSPAN27 and downregulation of the proto-oncogene ROS1, and LGR6 involved in Wnt/β-catenin signalling. Immunohistochemical and bioinformatics analysis of human NSCLC samples showed that CD82 loss correlated with malignancy. RelA/p65KD suppressed cell migration and epithelial-to-mesenchymal cell transition (EMT), mediated, in part, by CD82/KAI1, through integrin-mediated signalling involving the mitogenic ERK, Akt1 and Rac1 proteins. Conclusions: Canonical NF-κB signalling promotes NSCLC, in part, by downregulating the metastasis suppressor CD82/KAI1 which inhibits cell migration, EMT and tumour growth.
Collapse
Affiliation(s)
- Eugenia Roupakia
- Laboratory of Biology, School of Medicine, Faculty of Health Sciences, Institute of Biosciences, University Research Centre, University of Ioannina, University Campus, 45110 Ioannina, Greece;
- Biomedical Research Division, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, University of Ioannina Campus, 45115 Ioannina, Greece;
| | - Evangelia Chavdoula
- Biomedical Research Division, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, University of Ioannina Campus, 45115 Ioannina, Greece;
- Biomedical Research Foundation, Academy of Athens (BRFAA), 4 Soranou Ephessiou Street, 11527 Athens, Greece; (G.V.); (D.C.); (K.B.M.); (A.K.)
| | - Georgia Karpathiou
- Laboratory of Pathology, School of Medicine, Faculty of Health Sciences, University of Ioannina, 45500 Ioannina, Greece; (G.K.); (A.B.); (A.G.)
| | - Giannis Vatsellas
- Biomedical Research Foundation, Academy of Athens (BRFAA), 4 Soranou Ephessiou Street, 11527 Athens, Greece; (G.V.); (D.C.); (K.B.M.); (A.K.)
| | - Dimitrios Chatzopoulos
- Biomedical Research Foundation, Academy of Athens (BRFAA), 4 Soranou Ephessiou Street, 11527 Athens, Greece; (G.V.); (D.C.); (K.B.M.); (A.K.)
| | - Angeliki Mela
- Department of Pathology and Cell Biology Columbia University Medical Center, Irving Comprehensive Cancer Research Center, Columbia University, New York, NY 10032, USA;
| | - Jennifer M. Gillette
- Department of Pathology, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA;
| | - Katharina Kriegsmann
- Department of Internal Medicine V, University Hospital Heidelberg, 69120 Heidelberg, Germany;
| | - Mark Kriegsmann
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany;
| | - Anna Batistatou
- Laboratory of Pathology, School of Medicine, Faculty of Health Sciences, University of Ioannina, 45500 Ioannina, Greece; (G.K.); (A.B.); (A.G.)
| | - Anna Goussia
- Laboratory of Pathology, School of Medicine, Faculty of Health Sciences, University of Ioannina, 45500 Ioannina, Greece; (G.K.); (A.B.); (A.G.)
| | - Kenneth B. Marcu
- Biomedical Research Foundation, Academy of Athens (BRFAA), 4 Soranou Ephessiou Street, 11527 Athens, Greece; (G.V.); (D.C.); (K.B.M.); (A.K.)
- Department of Biochemistry and Cell Biology, Microbiology and Pathology, Stony Brook University, New York, NY 11794, USA
| | - Emmanouil Karteris
- Division of Biosciences, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, Middlesex, London UB8 PH, UK;
| | - Apostolos Klinakis
- Biomedical Research Foundation, Academy of Athens (BRFAA), 4 Soranou Ephessiou Street, 11527 Athens, Greece; (G.V.); (D.C.); (K.B.M.); (A.K.)
| | - Evangelos Kolettas
- Laboratory of Biology, School of Medicine, Faculty of Health Sciences, Institute of Biosciences, University Research Centre, University of Ioannina, University Campus, 45110 Ioannina, Greece;
- Biomedical Research Division, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, University of Ioannina Campus, 45115 Ioannina, Greece;
- Correspondence: ; Tel.: +30-26510-07578; Fax: +30-26510-07863
| |
Collapse
|
12
|
Kang SJ, Lee JW, Song J, Park J, Choi J, Suh KH, Min KH. Synthesis and biological activity of 2-cyanoacrylamide derivatives tethered to imidazopyridine as TAK1 inhibitors. J Enzyme Inhib Med Chem 2021; 35:1928-1936. [PMID: 33086897 PMCID: PMC7594721 DOI: 10.1080/14756366.2020.1833876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The importance of transforming growth factor beta-activated kinase 1 (TAK1) to cell survival has been demonstrated in many studies. TAK1 regulates signalling cascades, the NF-κB pathway and the mitogen-activated protein kinase (MAPK) pathway. TAK1 inhibitors can induce the apoptosis of cancerous cells, and irreversible inhibitors such as (5Z)-7-oxozeaenol are highly potent. However, they can react non-specifically with cysteine residues in proteins, which may have serious adverse effects. Reversible covalent inhibitors have been suggested as alternatives. We synthesised imidazopyridine derivatives as novel TAK1 inhibitors, which have 2-cyanoacrylamide moiety that can form reversible covalent bonding. A derivative with 2-cyano-3-(6-methylpyridin-2-yl)acrylamide (13h) exhibited potent TAK1 inhibitory activity with an IC50 of 27 nM. It showed a reversible reaction with β-mercaptoethanol, which supports its potential as a reversible covalent inhibitor.
Collapse
Affiliation(s)
- Seok Jong Kang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea.,Hanmi Research Center, Hanmi Pharm. Co. Ltd., Gyeonggi-Do, Republic of Korea
| | - Jung Wuk Lee
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Jiho Song
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Jiwon Park
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Jaeyul Choi
- Hanmi Research Center, Hanmi Pharm. Co. Ltd., Gyeonggi-Do, Republic of Korea
| | - Kwee Hyun Suh
- Hanmi Research Center, Hanmi Pharm. Co. Ltd., Gyeonggi-Do, Republic of Korea
| | - Kyung Hoon Min
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| |
Collapse
|
13
|
Regulation of Transcription Factor NF-κB in Its Natural Habitat: The Nucleus. Cells 2021; 10:cells10040753. [PMID: 33805563 PMCID: PMC8066257 DOI: 10.3390/cells10040753] [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: 03/08/2021] [Revised: 03/24/2021] [Accepted: 03/24/2021] [Indexed: 01/11/2023] Open
Abstract
Activation of the transcription factor NF-κB elicits an individually tailored transcriptional response in order to meet the particular requirements of specific cell types, tissues, or organs. Control of the induction kinetics, amplitude, and termination of gene expression involves multiple layers of NF-κB regulation in the nucleus. Here we discuss some recent advances in our understanding of the mutual relations between NF-κB and chromatin regulators also in the context of different levels of genome organization. Changes in the 3D folding of the genome, as they occur during senescence or in cancer cells, can causally contribute to sustained increases in NF-κB activity. We also highlight the participation of NF-κB in the formation of hierarchically organized super enhancers, which enable the coordinated expression of co-regulated sets of NF-κB target genes. The identification of mechanisms allowing the specific regulation of NF-κB target gene clusters could potentially enable targeted therapeutic interventions, allowing selective interference with subsets of the NF-κB response without a complete inactivation of this key signaling system.
Collapse
|
14
|
Zarnack K, Balasubramanian S, Gantier MP, Kunetsky V, Kracht M, Schmitz ML, Sträßer K. Dynamic mRNP Remodeling in Response to Internal and External Stimuli. Biomolecules 2020; 10:biom10091310. [PMID: 32932892 PMCID: PMC7565591 DOI: 10.3390/biom10091310] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/02/2020] [Accepted: 09/08/2020] [Indexed: 02/06/2023] Open
Abstract
Signal transduction and the regulation of gene expression are fundamental processes in every cell. RNA-binding proteins (RBPs) play a key role in the post-transcriptional modulation of gene expression in response to both internal and external stimuli. However, how signaling pathways regulate the assembly of RBPs with mRNAs remains largely unknown. Here, we summarize observations showing that the formation and composition of messenger ribonucleoprotein particles (mRNPs) is dynamically remodeled in space and time by specific signaling cascades and the resulting post-translational modifications. The integration of signaling events with gene expression is key to the rapid adaptation of cells to environmental changes and stress. Only a combined approach analyzing the signal transduction pathways and the changes in post-transcriptional gene expression they cause will unravel the mechanisms coordinating these important cellular processes.
Collapse
Affiliation(s)
- Kathi Zarnack
- Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, 60438 Frankfurt a.M., Germany;
| | | | - Michael P. Gantier
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia;
- Department of Molecular and Translational Science, Monash University, Clayton, VIC 3800, Australia
| | - Vladislav Kunetsky
- Institute of Biochemistry, FB08, Justus Liebig University, 35392 Giessen, Germany;
| | - Michael Kracht
- Rudolf Buchheim Institute of Pharmacology, FB11, Justus Liebig University, 35392 Giessen, Germany;
| | - M. Lienhard Schmitz
- Institute of Biochemistry, FB11, Justus Liebig University, 35392 Giessen, Germany;
| | - Katja Sträßer
- Institute of Biochemistry, FB08, Justus Liebig University, 35392 Giessen, Germany;
- Correspondence:
| |
Collapse
|
15
|
Kracht M, Müller-Ladner U, Schmitz ML. Mutual regulation of metabolic processes and proinflammatory NF-κB signaling. J Allergy Clin Immunol 2020; 146:694-705. [PMID: 32771559 DOI: 10.1016/j.jaci.2020.07.027] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/16/2020] [Accepted: 07/28/2020] [Indexed: 12/27/2022]
Abstract
The nuclear factor kappa B (NF-κB) signaling system, a key regulator of immunologic processes, also affects a plethora of metabolic changes associated with inflammation and the immune response. NF-κB-regulating signaling cascades, in concert with NF-κB-mediated transcriptional events, control the metabolism at several levels. NF-κB modulates apical components of metabolic processes including metabolic hormones such as insulin and glucagon, the cellular master switches 5' AMP-activated protein kinase and mTOR, and also numerous metabolic enzymes and their respective regulators. Vice versa, metabolic enzymes and their products also exert multilevel control of NF-κB activity, thereby creating a highly connected regulatory network. These insights have resulted in the identification of the noncanonical IκB kinase kinases IκB kinase ɛ and TBK1, which are upregulated by overnutrition, and may therefore be suitable potential therapeutic targets for metabolic syndromes. An inhibitor interfering with the activity of both kinases reduces obesity-related metabolic dysfunctions in mouse models and the encouraging results from a recent clinical trial indicate that targeting these NF-κB pathway components improves glucose homeostasis in a subset of patients with type 2 diabetes.
Collapse
Affiliation(s)
- Michael Kracht
- Rudolf Buchheim-Institute of Pharmacology, Justus-Liebig-University, Giessen, Germany
| | - Ulf Müller-Ladner
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University, Campus Kerckhoff, Bad Nauheim, Germany
| | | |
Collapse
|
16
|
Barter MJ, Cheung K, Falk J, Panagiotopoulos AC, Cosimini C, O'Brien S, Teja-Putri K, Neill G, Deehan DJ, Young DA. Dynamic chromatin accessibility landscape changes following interleukin-1 stimulation. Epigenetics 2020; 16:106-119. [PMID: 32741307 PMCID: PMC7889151 DOI: 10.1080/15592294.2020.1789266] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Dynamic modifications of chromatin allow rapid access of the gene regulatory machinery to condensed genomic regions facilitating subsequent gene expression. Inflammatory cytokine stimulation of cells can cause rapid gene expression changes through direct signalling pathway-mediated transcription factor activation and regulatory element binding. Here we used the Assay for Transposase Accessible Chromatin with high-throughput sequencing (ATAC-seq) to assess regions of the genome that are differentially accessible following treatment of cells with interleukin-1 (IL-1). We identified 126,483 open chromatin regions, with 241 regions significantly differentially accessible following stimulation, with 64 and 177 more or less accessible, respectively. These differentially accessible regions predominantly correspond to regions of the genome marked as enhancers. Motif searching identified an overrepresentation of a number of transcription factors, most notably RelA, in the regions becoming more accessible, with analysis of ChIP-seq data confirmed RelA binding to these regions. A significant correlation in differential chromatin accessibility and gene expression was also observed. Functionality in regulating gene expression was confirmed using CRISPR/Cas9 genome-editing to delete regions that became more accessible following stimulation in the genes MMP13, IKBKE and C1QTNF1. These same regions were also accessible for activation using a dCas9-transcriptional activator and showed enhancer activity in a cellular model. Together, these data describe and functionally validate a number of dynamically accessible chromatin regions involved in inflammatory signalling.
Collapse
Affiliation(s)
- Matt J Barter
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| | - Kathleen Cheung
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK.,Faculty of Medical Sciences, Bioinformatics Support Unit, Newcastle University , Newcastle upon Tyne, UK
| | - Julia Falk
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| | - Andreas C Panagiotopoulos
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| | - Caitlin Cosimini
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| | - Siobhan O'Brien
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| | - Karina Teja-Putri
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| | - Graham Neill
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| | - David J Deehan
- Department of Orthopaedics, Freeman Hospital, Orthopaedics , UK
| | - David A Young
- Faculty of Medical Sciences, Skeletal Research Group, Biosciences Institute, Newcastle University , Newcastle upon Tyne, UK
| |
Collapse
|
17
|
Lübow C, Bockstiegel J, Weindl G. Lysosomotropic drugs enhance pro-inflammatory responses to IL-1β in macrophages by inhibiting internalization of the IL-1 receptor. Biochem Pharmacol 2020; 175:113864. [PMID: 32088265 DOI: 10.1016/j.bcp.2020.113864] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/18/2020] [Indexed: 12/20/2022]
Abstract
Interleukin (IL)-1 signaling leads to production of pro-inflammatory mediators and is regulated by receptor endocytosis. Lysosomotropic drugs have been linked to increased pro-inflammatory responses under sterile inflammatory conditions but the underlying mechanisms have not been fully elucidated. Here, we report that lysosomotropic drugs potentiate pro-inflammatory effects in response to IL-1β via a mechanism involving reactive oxygen species, p38 mitogen-activated protein kinase and reduced IL-1 receptor internalization. Chloroquine and hydroxychloroquine increased IL-1β-induced CXCL8 secretion in macrophages which was critically dependent on the lysosomotropic character and inhibition of macroautophagy but independent from the NLRP3 inflammasome. Co-stimulation with the autophagy inducer interferon gamma attenuated CXCL8 release. Other lysosomotropic drugs like bafilomycin A1, fluoxetine and chlorpromazine but also the endocytosis inhibitor dynasore showed similar pro-inflammatory responses. Increased cell surface expression of IL-1 receptor suggests reduced receptor degradation in the presence of lysosomotropic drugs. Our findings provide new insights into a potentially crucial immunoregulatory mechanism in macrophages that may explain how lysosomotropic drugs drive sterile inflammation.
Collapse
Affiliation(s)
- Charlotte Lübow
- Freie Universität Berlin, Institute of Pharmacy (Pharmacology and Toxicology), Germany; University of Bonn, Pharmaceutical Institute, Section Pharmacology and Toxicology, Germany
| | - Judith Bockstiegel
- University of Bonn, Pharmaceutical Institute, Section Pharmacology and Toxicology, Germany
| | - Günther Weindl
- Freie Universität Berlin, Institute of Pharmacy (Pharmacology and Toxicology), Germany; University of Bonn, Pharmaceutical Institute, Section Pharmacology and Toxicology, Germany.
| |
Collapse
|
18
|
Weiterer S, Meier‐Soelch J, Georgomanolis T, Mizi A, Beyerlein A, Weiser H, Brant L, Mayr‐Buro C, Jurida L, Beuerlein K, Müller H, Weber A, Tenekeci U, Dittrich‐Breiholz O, Bartkuhn M, Nist A, Stiewe T, van IJcken WFJ, Riedlinger T, Schmitz ML, Papantonis A, Kracht M. Distinct IL-1α-responsive enhancers promote acute and coordinated changes in chromatin topology in a hierarchical manner. EMBO J 2020; 39:e101533. [PMID: 31701553 PMCID: PMC6939198 DOI: 10.15252/embj.2019101533] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 09/27/2019] [Accepted: 10/01/2019] [Indexed: 12/14/2022] Open
Abstract
How cytokine-driven changes in chromatin topology are converted into gene regulatory circuits during inflammation still remains unclear. Here, we show that interleukin (IL)-1α induces acute and widespread changes in chromatin accessibility via the TAK1 kinase and NF-κB at regions that are highly enriched for inflammatory disease-relevant SNPs. Two enhancers in the extended chemokine locus on human chromosome 4 regulate the IL-1α-inducible IL8 and CXCL1-3 genes. Both enhancers engage in dynamic spatial interactions with gene promoters in an IL-1α/TAK1-inducible manner. Microdeletions of p65-binding sites in either of the two enhancers impair NF-κB recruitment, suppress activation and biallelic transcription of the IL8/CXCL2 genes, and reshuffle higher-order chromatin interactions as judged by i4C interactome profiles. Notably, these findings support a dominant role of the IL8 "master" enhancer in the regulation of sustained IL-1α signaling, as well as for IL-8 and IL-6 secretion. CRISPR-guided transactivation of the IL8 locus or cross-TAD regulation by TNFα-responsive enhancers in a different model locus supports the existence of complex enhancer hierarchies in response to cytokine stimulation that prime and orchestrate proinflammatory chromatin responses downstream of NF-κB.
Collapse
Affiliation(s)
- Sinah‐Sophia Weiterer
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Johanna Meier‐Soelch
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | | | - Athanasia Mizi
- Center for Molecular Medicine CologneUniversity of CologneCologneGermany
- Department of PathologyUniversity Medical Center GöttingenGöttingenGermany
| | - Anna Beyerlein
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Hendrik Weiser
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Lilija Brant
- Department of PathologyUniversity Medical Center GöttingenGöttingenGermany
| | - Christin Mayr‐Buro
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Liane Jurida
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Knut Beuerlein
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Helmut Müller
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Axel Weber
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Ulas Tenekeci
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
| | - Oliver Dittrich‐Breiholz
- Research Core Unit GenomicsInstitute of Physiological ChemistryMedical School HannoverHannoverGermany
| | - Marek Bartkuhn
- Institute for GeneticsJustus Liebig University GiessenGiessenGermany
| | - Andrea Nist
- Genomics Core Facility and Institute of Molecular OncologyPhilipps University MarburgMarburgGermany
| | - Thorsten Stiewe
- Genomics Core Facility and Institute of Molecular OncologyPhilipps University MarburgMarburgGermany
- Member of the German Center for Lung Research (DZL)GiessenGermany
| | | | - Tabea Riedlinger
- Institute of BiochemistryJustus Liebig University GiessenGiessenGermany
| | - M Lienhard Schmitz
- Member of the German Center for Lung Research (DZL)GiessenGermany
- Institute of BiochemistryJustus Liebig University GiessenGiessenGermany
| | - Argyris Papantonis
- Center for Molecular Medicine CologneUniversity of CologneCologneGermany
- Department of PathologyUniversity Medical Center GöttingenGöttingenGermany
| | - Michael Kracht
- Rudolf Buchheim Institute of PharmacologyJustus Liebig University GiessenGiessenGermany
- Member of the German Center for Lung Research (DZL)GiessenGermany
| |
Collapse
|
19
|
Naciri I, Laisné M, Ferry L, Bourmaud M, Gupta N, Di Carlo S, Huna A, Martin N, Peduto L, Bernard D, Kirsh O, Defossez PA. Genetic screens reveal mechanisms for the transcriptional regulation of tissue-specific genes in normal cells and tumors. Nucleic Acids Res 2019; 47:3407-3421. [PMID: 30753595 PMCID: PMC6468300 DOI: 10.1093/nar/gkz080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/28/2019] [Accepted: 01/30/2019] [Indexed: 12/14/2022] Open
Abstract
The proper tissue-specific regulation of gene expression is essential for development and homeostasis in metazoans. However, the illegitimate expression of normally tissue-restricted genes—like testis- or placenta-specific genes—is frequently observed in tumors; this promotes transformation, but also allows immunotherapy. Two important questions are: how is the expression of these genes controlled in healthy cells? And how is this altered in cancer? To address these questions, we used an unbiased approach to test the ability of 350 distinct genetic or epigenetic perturbations to induce the illegitimate expression of over 40 tissue-restricted genes in primary human cells. We find that almost all of these genes are remarkably resistant to reactivation by a single alteration in signaling pathways or chromatin regulation. However, a few genes differ and are more readily activated; one is the placenta-expressed gene ADAM12, which promotes invasion. Using cellular systems, an animal model, and bioinformatics, we find that a non-canonical but druggable TGF-β/KAT2A/TAK1 axis controls ADAM12 induction in normal and cancer cells. More broadly, our data show that illegitimate gene expression in cancer is an heterogeneous phenomenon, with a few genes activatable by simple events, and most genes likely requiring a combination of events to become reactivated.
Collapse
Affiliation(s)
- Ikrame Naciri
- Univ. Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate, UMR 7216 CNRS, 75013 Paris, France
| | - Marthe Laisné
- Univ. Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate, UMR 7216 CNRS, 75013 Paris, France
| | - Laure Ferry
- Univ. Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate, UMR 7216 CNRS, 75013 Paris, France
| | - Morgane Bourmaud
- INSERM U1132 and USPC Paris-Diderot, Hôpital Lariboisière, Paris, France
| | - Nikhil Gupta
- Univ. Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate, UMR 7216 CNRS, 75013 Paris, France
| | - Selene Di Carlo
- Unité Stroma, Inflammation & Tissue Repair, Institut Pasteur, 75724 Paris, France; INSERM U1224, 75724 Paris, France
| | - Anda Huna
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69008 Lyon, France
| | - Nadine Martin
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69008 Lyon, France
| | - Lucie Peduto
- Unité Stroma, Inflammation & Tissue Repair, Institut Pasteur, 75724 Paris, France; INSERM U1224, 75724 Paris, France
| | - David Bernard
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69008 Lyon, France
| | - Olivier Kirsh
- Univ. Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate, UMR 7216 CNRS, 75013 Paris, France
| | - Pierre-Antoine Defossez
- Univ. Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate, UMR 7216 CNRS, 75013 Paris, France
| |
Collapse
|
20
|
Aparicio-Soto M, Redhu D, Sánchez-Hidalgo M, Fernández-Bolaños JG, Alarcón-de-la-Lastra C, Worm M, Babina M. Olive-Oil-Derived Polyphenols Effectively Attenuate Inflammatory Responses of Human Keratinocytes by Interfering with the NF-κB Pathway. Mol Nutr Food Res 2019; 63:e1900019. [PMID: 31393642 DOI: 10.1002/mnfr.201900019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 06/28/2019] [Indexed: 12/14/2022]
Abstract
SCOPE Extra virgin olive oil (EVOO) is rich in phenolic compounds, including hydroxytyrosol (HTy) and hydroxytyrosyl acetate (HTy-Ac), which have presented multiple beneficial properties. Their impact on inflammatory responses in human keratinocytes and modes of action have not been addressed yet. METHODS AND RESULTS Primary human keratinocytes are pretreated with HTy-Ac or HTy for 30 min and stimulated with IL-1β or Toll-like receptor 3 ligand (TLR3-l). Thymic stromal lymphopoietin (TSLP), measured by ELISA, is attenuated by both polyphenols in a dose-dependent manner. The expression of several inflammation-related genes, including distinct TSLP isoforms and IL-8, are assessed by quantitative RT-PCR and likewise inhibited by HTy-Ac/HTy. Mechanistically, EVOO phenols counteracts IκB degradation and translocation of NF-κB to the nucleus, a transcription factor of essential significance to TSLP and IL-8 transcriptional activity; this is evidenced by immunoblotting. Accordingly, NF-κB recruitment to critical binding sites in the TSLP and IL-8 promoter is impeded in the presence of HTy-Ac/HTy, as demonstrated by chromatin immunoprecipitation. Promoter reporter assays finally reveal that the neutralizing effect on NF-κB induction has functional consequences, resulting in reduced NF-κB-directed transcription. CONCLUSION EVOO phenols afford protection from inflammation in human keratinocytes by interference with the NF-κB pathway.
Collapse
Affiliation(s)
- Marina Aparicio-Soto
- Division of Allergy and immunology, Department of Dermatology and Allergy, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany.,Department of Pharmacology, Faculty of Pharmacy, University of Sevilla, Profesor García González Street 2, Seville, 41012, Spain
| | - Davender Redhu
- Division of Allergy and immunology, Department of Dermatology and Allergy, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany
| | - Marina Sánchez-Hidalgo
- Department of Pharmacology, Faculty of Pharmacy, University of Sevilla, Profesor García González Street 2, Seville, 41012, Spain
| | - José G Fernández-Bolaños
- Department of Organic Chemistry, Faculty of Chemistry, University of Sevilla, Profesor García González Street 1, Seville, 41012, Spain
| | - Catalina Alarcón-de-la-Lastra
- Department of Pharmacology, Faculty of Pharmacy, University of Sevilla, Profesor García González Street 2, Seville, 41012, Spain
| | - Margitta Worm
- Division of Allergy and immunology, Department of Dermatology and Allergy, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany
| | - Magda Babina
- Division of Allergy and immunology, Department of Dermatology and Allergy, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany
| |
Collapse
|
21
|
Single-Cell Analysis of Multiple Steps of Dynamic NF-κB Regulation in Interleukin-1α-Triggered Tumor Cells Using Proximity Ligation Assays. Cancers (Basel) 2019; 11:cancers11081199. [PMID: 31426445 PMCID: PMC6721548 DOI: 10.3390/cancers11081199] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/02/2019] [Accepted: 08/09/2019] [Indexed: 12/21/2022] Open
Abstract
The frequently occurring heterogeneity of cancer cells and their functional interaction with immune cells in the tumor microenvironment raises the need to study signaling pathways at the single cell level with high precision, sensitivity, and spatial resolution. As aberrant NF-κB activity has been implicated in almost all steps of cancer development, we analyzed the dynamic regulation and activation status of the canonical NF-κB pathway in control and IL-1α-stimulated individual cells using proximity ligation assays (PLAs). These systematic experiments allowed the visualization of the dynamic dissociation and re-formation of endogenous p65/IκBα complexes and the nuclear translocation of NF-κB p50/p65 dimers. PLA combined with immunostaining for p65 or with NFKBIA single molecule mRNA-FISH facilitated the analysis of (i) further levels of the NF-κB pathway, (i) its functionality for downstream gene expression, and (iii) the heterogeneity of the NF-κB response in individual cells. PLA also revealed the interaction between NF-κB p65 and the P-body component DCP1a, a new p65 interactor that contributes to efficient p65 NF-κB nuclear translocation. In summary, these data show that PLA technology faithfully mirrored all aspects of dynamic NF-κB regulation, thus allowing molecular diagnostics of this key pathway at the single cell level which will be required for future precision medicine.
Collapse
|
22
|
Riedlinger T, Bartkuhn M, Zimmermann T, Hake SB, Nist A, Stiewe T, Kracht M, Schmitz ML. Chemotherapeutic Drugs Inhibiting Topoisomerase 1 Activity Impede Cytokine-Induced and NF-κB p65-Regulated Gene Expression. Cancers (Basel) 2019; 11:cancers11060883. [PMID: 31242600 PMCID: PMC6627772 DOI: 10.3390/cancers11060883] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 02/03/2023] Open
Abstract
Inhibitors of DNA topoisomerase I (TOP1), an enzyme relieving torsional stress of DNA by generating transient single-strand breaks, are clinically used to treat ovarian, small cell lung and cervical cancer. As torsional stress is generated during transcription by progression of RNA polymerase II through the transcribed gene, we tested the effects of camptothecin and of the approved TOP1 inhibitors Topotecan and SN-38 on TNFα-induced gene expression. RNA-seq experiments showed that inhibition of TOP1 but not of TOP2 activity suppressed the vast majority of TNFα-triggered genes. The TOP1 effects were fully reversible and preferentially affected long genes. TNFα stimulation led to inducible recruitment of TOP1 to the gene body of IL8, where its inhibition by camptothecin reduced transcription elongation and also led to altered histone H3 acetylation. Together, these data show that TOP1 inhibitors potently suppress expression of proinflammatory cytokines, a feature that may contribute to the increased infection risk occurring in tumor patients treated with these agents. On the other hand, TOP1 inhibitors could also be considered as a therapeutic option in order to interfere with exaggerated cytokine expression seen in several inflammatory diseases.
Collapse
Affiliation(s)
- Tabea Riedlinger
- Institute of Biochemistry, Justus Liebig University, D-35392 Giessen, Germany.
| | - Marek Bartkuhn
- Institute for Genetics, Justus-Liebig University Giessen, 35392 Giessen, Germany.
| | - Tobias Zimmermann
- Bioinformatics and Systems Biology, University of Giessen, Heinrich-Buff-Ring 58-62, 35392 Giessen, Germany.
| | - Sandra B Hake
- Institute for Genetics, Justus-Liebig University Giessen, 35392 Giessen, Germany.
| | - Andrea Nist
- Genomics Core Facility and Institute of Molecular Oncology, Philipps University Marburg, D-35043 Marburg, Germany.
| | - Thorsten Stiewe
- Genomics Core Facility and Institute of Molecular Oncology, Philipps University Marburg, D-35043 Marburg, Germany.
| | - Michael Kracht
- Rudolf-Buchheim-Institute of Pharmacology, Justus Liebig University, D-35392 Giessen, Germany.
| | - M Lienhard Schmitz
- Institute of Biochemistry, Justus Liebig University, D-35392 Giessen, Germany.
| |
Collapse
|
23
|
Borghini L, Hibberd M, Davila S. Changes in H3K27ac following lipopolysaccharide stimulation of nasopharyngeal epithelial cells. BMC Genomics 2018; 19:969. [PMID: 30587130 PMCID: PMC6307289 DOI: 10.1186/s12864-018-5295-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 11/21/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The epithelium is the first line of defense against pathogens. Notably the epithelial cells lining the respiratory track are crucial in sensing airborne microbes and mounting an effective immune response via the expression of target genes such as cytokines and chemokines. Gene expression regulation following microbial recognition is partly regulated by chromatin re-organization and has been described in immune cells but data from epithelial cells is not as detailed. Here, we report genome-wide changes of the H3K27ac mark, characteristic of activated enhancers and promoters, after stimulation of nasopharyngeal epithelial cells with the bacterial endotoxin Lipopolysaccharide (LPS). RESULTS In this study, we have identified 626 regions where the H3K27ac mark showed reproducible increase following LPS induction in epithelial cells. This indicated that sensing of LPS led to opening of the chromatin in our system. Moreover, this phenomenon seemed to happen extensively at enhancers regions and we could observe instances of Super-enhancer formation. As expected, LPS-increased H3K27ac regions were found in the vicinity of genes relevant for LPS response and these changes correlated with up-regulation of their expression. In addition, we found the induction of H3K27ac mark to overlap with the binding of one of the NF-kB members and key regulator of the innate immune response, RELA, following LPS sensing. Indeed, inhibiting the NF-kB pathway abolished the deposition of H3K27ac at the TNF locus, a target of RELA, suggesting that these two phenomena are associated. CONCLUSIONS Enhancers' selection and activation following microbial or inflammatory stimuli has been described previously and shown to be mediated via the NF-kB pathway. Here, we demonstrate that this is also likely to occur in the case of LPS-sensing by nasopharyngeal epithelial cells as well. In addition to validating previous findings, we generated a valuable data set relevant to the host immune response to epithelial cell colonizing or infecting pathogens.
Collapse
Affiliation(s)
- Lisa Borghini
- Human Genetics, Genome Institute of Singapore, Singapore, 138672, Singapore. .,Infectious Disease, Genome Institute of Singapore, Singapore, 138672, Singapore.
| | - Martin Hibberd
- Infectious Disease, Genome Institute of Singapore, Singapore, 138672, Singapore.,Present Address: Pathogen Molecular Biology, Infectious & Tropical Disease, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Sonia Davila
- Human Genetics, Genome Institute of Singapore, Singapore, 138672, Singapore.,Present Address: SingHealth Duke-NUS Institute of Precision Medicine (PRISM), Singapore, 169609, Singapore
| |
Collapse
|
24
|
Riedlinger T, Liefke R, Meier-Soelch J, Jurida L, Nist A, Stiewe T, Kracht M, Schmitz ML. NF-κB p65 dimerization and DNA-binding is important for inflammatory gene expression. FASEB J 2018; 33:4188-4202. [PMID: 30526044 PMCID: PMC6404571 DOI: 10.1096/fj.201801638r] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Increasing evidence shows that many transcription factors execute important biologic functions independent from their DNA-binding capacity. The NF-κB p65 (RELA) subunit is a central regulator of innate immunity. Here, we investigated the relative functional contribution of p65 DNA-binding and dimerization in p65-deficient human and murine cells reconstituted with single amino acid mutants preventing either DNA-binding (p65 E/I) or dimerization (p65 FL/DD). DNA-binding of p65 was required for RelB-dependent stabilization of the NF-κB p100 protein. The antiapoptotic function of p65 and expression of the majority of TNF-α–induced genes were dependent on p65’s ability to bind DNA and to dimerize. Chromatin immunoprecipitation with massively parallel DNA sequencing experiments revealed that impaired DNA-binding and dimerization strongly diminish the chromatin association of p65. However, there were also p65-independent TNF-α–inducible genes and a subgroup of p65 binding sites still allowed some residual chromatin association of the mutants. These sites were enriched in activator protein 1 (AP-1) binding motifs and showed increased chromatin accessibility and basal transcription. This suggests a mechanism of assisted p65 chromatin association that can be in part facilitated by chromatin priming and cooperativity with other transcription factors such as AP-1.—Riedlinger, T., Liefke, R., Meier-Soelch, J., Jurida, L., Nist, A., Stiewe, T., Kracht, M., Schmitz, M. L. NF-κB p65 dimerization and DNA-binding is important for inflammatory gene expression.
Collapse
Affiliation(s)
- Tabea Riedlinger
- Institute of Biochemistry, Member of the German Center for Lung Research, Justus-Liebig-University, Giessen, Germany
| | - Robert Liefke
- Institute of Biochemistry, Member of the German Center for Lung Research, Justus-Liebig-University, Giessen, Germany.,Institute of Molecular Biology and Tumor Research (IMT), Philipps University Marburg, Marburg, Germany
| | - Johanna Meier-Soelch
- Rudolf-Buchheim-Institute of Pharmacology, Member of the German Center for Lung Research, Justus-Liebig-University, Giessen, Germany; and
| | - Liane Jurida
- Rudolf-Buchheim-Institute of Pharmacology, Member of the German Center for Lung Research, Justus-Liebig-University, Giessen, Germany; and
| | - Andrea Nist
- Genomics Core Facility-Institute of Molecular Oncology, Philipps University Marburg, Marburg, Germany
| | - Thorsten Stiewe
- Genomics Core Facility-Institute of Molecular Oncology, Philipps University Marburg, Marburg, Germany
| | - Michael Kracht
- Rudolf-Buchheim-Institute of Pharmacology, Member of the German Center for Lung Research, Justus-Liebig-University, Giessen, Germany; and
| | - M Lienhard Schmitz
- Institute of Biochemistry, Member of the German Center for Lung Research, Justus-Liebig-University, Giessen, Germany
| |
Collapse
|
25
|
Schmitz ML, Shaban MS, Albert BV, Gökçen A, Kracht M. The Crosstalk of Endoplasmic Reticulum (ER) Stress Pathways with NF-κB: Complex Mechanisms Relevant for Cancer, Inflammation and Infection. Biomedicines 2018; 6:biomedicines6020058. [PMID: 29772680 PMCID: PMC6027367 DOI: 10.3390/biomedicines6020058] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 05/08/2018] [Accepted: 05/11/2018] [Indexed: 02/07/2023] Open
Abstract
Stressful conditions occuring during cancer, inflammation or infection activate adaptive responses that are controlled by the unfolded protein response (UPR) and the nuclear factor of kappa light polypeptide gene enhancer in B-cells (NF-κB) signaling pathway. These systems can be triggered by chemical compounds but also by cytokines, toll-like receptor ligands, nucleic acids, lipids, bacteria and viruses. Despite representing unique signaling cascades, new data indicate that the UPR and NF-κB pathways converge within the nucleus through ten major transcription factors (TFs), namely activating transcription factor (ATF)4, ATF3, CCAAT/enhancer-binding protein (CEBP) homologous protein (CHOP), X-box-binding protein (XBP)1, ATF6α and the five NF-κB subunits. The combinatorial occupancy of numerous genomic regions (enhancers and promoters) coordinates the transcriptional activation or repression of hundreds of genes that collectively determine the balance between metabolic and inflammatory phenotypes and the extent of apoptosis and autophagy or repair of cell damage and survival. Here, we also discuss results from genetic experiments and chemical activators of endoplasmic reticulum (ER) stress that suggest a link to the cytosolic inhibitor of NF-κB (IκB)α degradation pathway. These data show that the UPR affects this major control point of NF-κB activation through several mechanisms. Taken together, available evidence indicates that the UPR and NF-κB interact at multiple levels. This crosstalk provides ample opportunities to fine-tune cellular stress responses and could also be exploited therapeutically in the future.
Collapse
Affiliation(s)
- M Lienhard Schmitz
- Institute of Biochemistry, Justus Liebig University Giessen, D-35392 Giessen, Germany.
| | - M Samer Shaban
- Rudolf-Buchheim-Institute of Pharmacology, Justus Liebig University Giessen, D-35392 Giessen, Germany.
| | - B Vincent Albert
- Rudolf-Buchheim-Institute of Pharmacology, Justus Liebig University Giessen, D-35392 Giessen, Germany.
| | - Anke Gökçen
- Rudolf-Buchheim-Institute of Pharmacology, Justus Liebig University Giessen, D-35392 Giessen, Germany.
| | - Michael Kracht
- Rudolf-Buchheim-Institute of Pharmacology, Justus Liebig University Giessen, D-35392 Giessen, Germany.
- Rudolf-Buchheim-Institute of Pharmacology, Universities of Giessen and Marburg Lung Center (UGMLC), Schubertstrasse 81, D-35392 Giessen, Germany.
| |
Collapse
|
26
|
Meier-Soelch J, Jurida L, Weber A, Newel D, Kim J, Braun T, Schmitz ML, Kracht M. RNAi-Based Identification of Gene-Specific Nuclear Cofactor Networks Regulating Interleukin-1 Target Genes. Front Immunol 2018; 9:775. [PMID: 29755455 PMCID: PMC5934416 DOI: 10.3389/fimmu.2018.00775] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/28/2018] [Indexed: 12/22/2022] Open
Abstract
The potent proinflammatory cytokine interleukin (IL)-1 triggers gene expression through the NF-κB signaling pathway. Here, we investigated the cofactor requirements of strongly regulated IL-1 target genes whose expression is impaired in p65 NF-κB-deficient murine embryonic fibroblasts. By two independent small-hairpin (sh)RNA screens, we examined 170 genes annotated to encode nuclear cofactors for their role in Cxcl2 mRNA expression and identified 22 factors that modulated basal or IL-1-inducible Cxcl2 levels. The functions of 16 of these factors were validated for Cxcl2 and further analyzed for their role in regulation of 10 additional IL-1 target genes by RT-qPCR. These data reveal that each inducible gene has its own (quantitative) requirement of cofactors to maintain basal levels and to respond to IL-1. Twelve factors (Epc1, H2afz, Kdm2b, Kdm6a, Mbd3, Mta2, Phf21a, Ruvbl1, Sin3b, Suv420h1, Taf1, and Ube3a) have not been previously implicated in inflammatory cytokine functions. Bioinformatics analysis indicates that they are components of complex nuclear protein networks that regulate chromatin functions and gene transcription. Collectively, these data suggest that downstream from the essential NF-κB signal each cytokine-inducible target gene has further subtle requirements for individual sets of nuclear cofactors that shape its transcriptional activation profile.
Collapse
Affiliation(s)
- Johanna Meier-Soelch
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University Giessen, Giessen, Germany
| | - Liane Jurida
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University Giessen, Giessen, Germany
| | - Axel Weber
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University Giessen, Giessen, Germany
| | - Doris Newel
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University Giessen, Giessen, Germany
| | - Johnny Kim
- Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Thomas Braun
- Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - M Lienhard Schmitz
- Institute of Biochemistry, Justus Liebig University Giessen, Giessen, Germany
| | - Michael Kracht
- Rudolf Buchheim Institute of Pharmacology, Justus Liebig University Giessen, Giessen, Germany
| |
Collapse
|
27
|
Wu J, Wang Q, Dai W, Wang W, Yue M, Wang J. Massive GGAAs in genomic repetitive sequences serve as a nuclear reservoir of NF-κB. J Genet Genomics 2018; 45:193-203. [PMID: PMID : 29748061 DOI: 10.1016/j.jgg.2018.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 04/05/2018] [Accepted: 04/09/2018] [Indexed: 12/01/2022]
Abstract
Nuclear factor κB (NF-κB) is a DNA-binding transcription factor. Characterizing its genomic binding sites is crucial for understanding its gene regulatory function and mechanism in cells. This study characterized the binding sites of NF-κB RelA/p65 in the tumor neurosis factor-α (TNFα) stimulated HeLa cells by a precise chromatin immunoprecipitation-sequencing (ChIP-seq). The results revealed that NF-κB binds nontraditional motifs (nt-motifs) containing conserved GGAA quadruplet. Moreover, nt-motifs mainly distribute in the peaks nearby centromeres that contain a larger number of repetitive elements such as satellite, simple repeats and short interspersed nuclear elements (SINEs). This intracellular binding pattern was then confirmed by the in vitro detection, indicating that NF-κB dimers can bind the nontraditional κB (nt-κB) sites with low affinity. However, this binding hardly activates transcription. This study thus deduced that NF-κB binding nt-motifs may realize functions other than gene regulation as NF-κB binding traditional motifs (t-motifs). To testify the deduction, many ChIP-seq data of other cell lines were then analyzed. The results indicate that NF-κB binding nt-motifs is also widely present in other cells. The ChIP-seq data analysis also revealed that nt-motifs more widely distribute in the peaks with low-fold enrichment. Importantly, it was also found that NF-κB binding nt-motifs is mainly present in the resting cells, whereas NF-κB binding t-motifs is mainly present in the stimulated cells. Astonishingly, no known function was enriched by the gene annotation of nt-motif peaks. Based on these results, this study proposed that the nt-κB sites that extensively distribute in larger numbers of repeat elements function as a nuclear reservoir of NF-κB. The nuclear NF-κB proteins stored at nt-κB sites in the resting cells may be recruited to the t-κB sites for regulating its target genes upon stimulation.
Collapse
Affiliation(s)
- Jian Wu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Qiao Wang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Wei Dai
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Wei Wang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Ming Yue
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210002, China
| | - Jinke Wang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China.
| |
Collapse
|
28
|
Goldstein I, Paakinaho V, Baek S, Sung MH, Hager GL. Synergistic gene expression during the acute phase response is characterized by transcription factor assisted loading. Nat Commun 2017; 8:1849. [PMID: 29185442 PMCID: PMC5707366 DOI: 10.1038/s41467-017-02055-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 11/03/2017] [Indexed: 12/18/2022] Open
Abstract
The cytokines interleukin 1β and 6 (IL-1β, IL-6) mediate the acute phase response (APR). In liver, they regulate the secretion of acute phase proteins. Using RNA-seq in primary hepatocytes, we show that these cytokines regulate transcription in a bifurcated manner, leading to both synergistic and antagonistic gene expression. By mapping changes in enhancer landscape and transcription factor occupancy (using ChIP-seq), we show that synergistic gene induction is achieved by assisted loading of STAT3 on chromatin by NF-κB. With IL-6 treatment alone, STAT3 does not efficiently bind 20% of its coordinated binding sites. In the presence of IL-1β, NF-κB is activated, binds a subset of enhancers and primes their activity, as evidenced by increasing H3K27ac. This facilitates STAT3 binding and synergistic gene expression. Our findings reveal an enhancer-specific crosstalk whereby NF-κB enables STAT3 binding at some enhancers while perturbing it at others. This model reconciles seemingly contradictory reports of NF-κB-STAT3 crosstalk. The cytokines IL-1β and IL-6 mediate the systemic acute phase response (APR). Here, the authors provide evidence that these cytokines lead to both synergistic and antagonistic gene expression during APR; synergistic induction occurs by assisted loading of STAT3 on chromatin by NF-κB.
Collapse
Affiliation(s)
- Ido Goldstein
- Laboratory of Receptor Biology and Gene Expression, CCR, NCI, NIH, Bethesda, MD, 20892, USA.
| | - Ville Paakinaho
- Laboratory of Receptor Biology and Gene Expression, CCR, NCI, NIH, Bethesda, MD, 20892, USA
| | - Songjoon Baek
- Laboratory of Receptor Biology and Gene Expression, CCR, NCI, NIH, Bethesda, MD, 20892, USA
| | - Myong-Hee Sung
- Laboratory of Molecular Biology and Immunology, NIA, NIH, Baltimore, MD, 21224, USA
| | - Gordon L Hager
- Laboratory of Receptor Biology and Gene Expression, CCR, NCI, NIH, Bethesda, MD, 20892, USA.
| |
Collapse
|
29
|
Genes directly regulated by NF-κB in human hepatocellular carcinoma HepG2. Int J Biochem Cell Biol 2017; 89:157-170. [PMID: 28579529 DOI: 10.1016/j.biocel.2017.05.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/25/2017] [Accepted: 05/29/2017] [Indexed: 12/14/2022]
Abstract
It has been well-known that over activation of NF-κB has close relationship with hepatitis and hepatocellular carcinoma (HCC). However, the complete and exact underlying molecular pathways and mechanisms still remain not fully understood. By manipulating NF-κB activity with its recognized activator TNFα and using ChIP-seq and RNA-seq techniques, this study identified 699 NF-κB direct target genes (DTGs) in a widely used HCC cell line, HepG2, including 399 activated and 300 repressed genes. In these NF-κB DTGs, 216 genes (126 activated and 90 repressed genes) are among the current HCC gene signature. In comparison with NF-κB target genes identified in LPS-induced THP-1 and TNFα-induced HeLa cells, only limited numbers (24-46) of genes were shared by the two cell lines, indicating the HCC specificity of identified genes. Functional annotation revealed that NF-κB DTGs in HepG2 cell are mainly related with many typical NF-κB-related biological processes including immune system process, response to stress, response to stimulus, defense response, and cell death, and signaling pathways of MAPK, TNF, TGF-beta, Chemokine, NF-kappa B, and Toll-like receptor. Some NF-κB DTGs are also involved in Hepatitis C and B pathways. It was found that 82 NF-κB DTGs code secretory proteins, which include CCL2 and DKK1 that have already been used as HCC markers. Finally, the NF-κB DTGs were further confirmed by detecting the NF-κB binding and expression of 14 genes with ChIP-PCR and RT-PCR. This study thus provides a useful NF-κB DTG list for future studies of NF-κB-related molecular mechanisms and theranostic biomarkers of HCC.
Collapse
|
30
|
The NF-κB-dependent and -independent transcriptome and chromatin landscapes of human coronavirus 229E-infected cells. PLoS Pathog 2017; 13:e1006286. [PMID: 28355270 PMCID: PMC5386326 DOI: 10.1371/journal.ppat.1006286] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 04/10/2017] [Accepted: 03/09/2017] [Indexed: 12/20/2022] Open
Abstract
Coronavirus replication takes place in the host cell cytoplasm and triggers inflammatory gene expression by poorly characterized mechanisms. To obtain more insight into the signals and molecular events that coordinate global host responses in the nucleus of coronavirus-infected cells, first, transcriptome dynamics was studied in human coronavirus 229E (HCoV-229E)-infected A549 and HuH7 cells, respectively, revealing a core signature of upregulated genes in these cells. Compared to treatment with the prototypical inflammatory cytokine interleukin(IL)-1, HCoV-229E replication was found to attenuate the inducible activity of the transcription factor (TF) NF-κB and to restrict the nuclear concentration of NF-κB subunits by (i) an unusual mechanism involving partial degradation of IKKβ, NEMO and IκBα and (ii) upregulation of TNFAIP3 (A20), although constitutive IKK activity and basal TNFAIP3 expression levels were shown to be required for efficient virus replication. Second, we characterized actively transcribed genomic regions and enhancers in HCoV-229E-infected cells and systematically correlated the genome-wide gene expression changes with the recruitment of Ser5-phosphorylated RNA polymerase II and prototypical histone modifications (H3K9ac, H3K36ac, H4K5ac, H3K27ac, H3K4me1). The data revealed that, in HCoV-infected (but not IL-1-treated) cells, an extensive set of genes was activated without inducible p65 NF-κB being recruited. Furthermore, both HCoV-229E replication and IL-1 were shown to upregulate a small set of genes encoding immunomodulatory factors that bind p65 at promoters and require IKKβ activity and p65 for expression. Also, HCoV-229E and IL-1 activated a common set of 440 p65-bound enhancers that differed from another 992 HCoV-229E-specific enhancer regions by distinct TF-binding motif combinations. Taken together, the study shows that cytoplasmic RNA viruses fine-tune NF-κB signaling at multiple levels and profoundly reprogram the host cellular chromatin landscape, thereby orchestrating the timely coordinated expression of genes involved in multiple signaling, immunoregulatory and metabolic processes. Coronaviruses are major human and animal pathogens. They belong to a family of plus-strand RNA viruses that have extremely large genomes and encode a variety of proteins involved in virus-host interactions. The four common coronaviruses (HCoV-229E, NL63, OC43, HKU1) cause mainly upper respiratory tract infections, while zoonotic coronaviruses (SARS-CoV and MERS-CoV) cause severe lung disease, including acute respiratory distress syndrome (ARDS). The molecular basis for this fundamentally different pathology is incompletely understood. Our study provides a genome-wide investigation of epigenetic changes occurring in response to HCoV-229E. We identify at high resolution a large number of regulatory regions in the genome of infected cells that coordinate de novo gene transcription. Many of these genes have immunomodulatory functions and, most likely, contribute to limiting viral replication, while other factors may promote viral replication. The study provides an intriguing example of a virus that completes its entire life cycle in the cytoplasm while sending multiple signals to the nuclear chromatin compartment to adjust the host cell repertoire of transcribed genes. The approach taken in this study is expected to provide a suitable framework for future studies aimed at dissecting and comparing host responses to representative coronaviruses with different pathogenic potential in humans.
Collapse
|
31
|
Rheumatoid arthritis: TAK-ing the road to suppress inflammation in synovial fibroblasts. Nat Rev Rheumatol 2017; 13:133-134. [PMID: 28077868 DOI: 10.1038/nrrheum.2016.220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
32
|
Qin Y, Li S, Zhao G, Fu X, Xie X, Huang Y, Cheng X, Wei J, Liu H, Lai Z. Long-term intravenous administration of carboxylated single-walled carbon nanotubes induces persistent accumulation in the lungs and pulmonary fibrosis via the nuclear factor-kappa B pathway. Int J Nanomedicine 2016; 12:263-277. [PMID: 28115845 PMCID: PMC5221802 DOI: 10.2147/ijn.s123839] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Numerous studies have demonstrated promising application of single-walled carbon nanotubes (SWNTs) in drug delivery, diagnosis, and targeted therapy. However, the adverse health effects resulting from intravenous injection of SWNTs are not completely understood. Studies have shown that levels of “pristine” or carboxylated carbon nanotubes are very high in mouse lungs after intravenous injection. We hypothesized that long-term and repeated intravenous administration of carboxylated SWNTs (c-SWNTs) can result in persistent accumulation and induce histopathologic changes in rat lungs. Here, c-SWNTs were administered repeatedly to rats via tail-vein injection for 90 days. Long-term intravenous injection of c-SWNTs caused sustained embolization in lung capillaries and granuloma formation. It also induced a persistent inflammatory response that was regulated by the nuclear factor-kappa B signaling pathway, and which resulted in pulmonary fibrogenesis. c-SWNTs trapped within lung capillaries traversed capillary walls and injured alveolar epithelial cells, thereby stimulating production of pro-inflammatory cytokines (tumor necrosis factor-alpha and interleukin-1 beta) and pro-fibrotic growth factors (transforming growth factor-beta 1). Protein levels of type-I and type-III collagens, matrix metalloproteinase-2, and the tissue inhibitor of metalloproteinase-2 were upregulated after intravenous exposure to c-SWNTs as determined by immunohistochemical assays and Western blotting, which suggested collagen deposition and remodeling of the extracellular matrix. These data suggest that chronic and cumulative toxicity of nanomaterials to organs with abundant capillaries should be assessed if such nanomaterials are applied via intravenous administration.
Collapse
Affiliation(s)
- Yue Qin
- Pharmaceutical College, Guangxi Medical University
| | - Suning Li
- Department of Pharmacy, The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region
| | - Gan Zhao
- Department of Pharmacy, The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region
| | - Xuanhao Fu
- Pharmaceutical College, Guangxi Medical University
| | - Xueping Xie
- Pharmaceutical College, Guangxi Medical University
| | - Yiyi Huang
- Pharmaceutical College, Guangxi Medical University
| | - Xiaojing Cheng
- Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Jinbin Wei
- Pharmaceutical College, Guangxi Medical University
| | - Huagang Liu
- Pharmaceutical College, Guangxi Medical University
| | - Zefeng Lai
- Pharmaceutical College, Guangxi Medical University
| |
Collapse
|
33
|
Constitutive NF-κB activation in AML: Causes and treatment strategies. Crit Rev Oncol Hematol 2016; 98:35-44. [DOI: 10.1016/j.critrevonc.2015.10.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 08/12/2015] [Accepted: 10/01/2015] [Indexed: 01/01/2023] Open
|
34
|
Qiao Y, He H, Jonsson P, Sinha I, Zhao C, Dahlman-Wright K. AP-1 Is a Key Regulator of Proinflammatory Cytokine TNFα-mediated Triple-negative Breast Cancer Progression. J Biol Chem 2016; 291:5068-79. [PMID: 26792858 DOI: 10.1074/jbc.m115.702571] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Indexed: 12/21/2022] Open
Abstract
Triple-negative breast cancer (TNBC) represents a highly aggressive form of breast cancer with limited treatment options. Proinflammatory cytokines such as TNFα can facilitate tumor progression and metastasis. However, the mechanistic aspects of inflammation mediated TNBC progression remain unclear. Using ChIP-seq, we demonstrate that the cistrome for the AP-1 transcription factor c-Jun is comprised of 13,800 binding regions in TNFα-stimulated TNBC cells. In addition, we show that c-Jun regulates nearly a third of the TNFα-regulated transcriptome. Interestingly, high expression level of the c-Jun-regulated pro-invasion gene program is associated with poor clinical outcome in TNBCs. We further demonstrate that c-Jun drives TNFα-mediated increase of malignant characteristics of TNBC cells by transcriptional regulation of Ninj1. As exemplified by the CXC chemokine genes clustered on chromosome 4, we demonstrate that NF-κB might be a pioneer factor required for the regulation of TNFα-inducible inflammatory genes, whereas c-Jun has little effect. Together, our results uncover AP-1 as an important determinant for inflammation-induced cancer progression, rather than inflammatory response.
Collapse
Affiliation(s)
- Yichun Qiao
- From the Department of Biosciences and Nutrition, Novum, Karolinska Institutet, S-141 83 Huddinge, Sweden
| | - Huan He
- From the Department of Biosciences and Nutrition, Novum, Karolinska Institutet, S-141 83 Huddinge, Sweden
| | - Philip Jonsson
- Department of Radiation Oncology, Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, and
| | - Indranil Sinha
- From the Department of Biosciences and Nutrition, Novum, Karolinska Institutet, S-141 83 Huddinge, Sweden
| | - Chunyan Zhao
- From the Department of Biosciences and Nutrition, Novum, Karolinska Institutet, S-141 83 Huddinge, Sweden,
| | - Karin Dahlman-Wright
- From the Department of Biosciences and Nutrition, Novum, Karolinska Institutet, S-141 83 Huddinge, Sweden, Science for Life Laboratory, Karolinska Institutet, S-171 21 Solna, Sweden
| |
Collapse
|