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Essogmo FE, Zhilenkova AV, Tchawe YSN, Owoicho AM, Rusanov AS, Boroda A, Pirogova YN, Sangadzhieva ZD, Sanikovich VD, Bagmet NN, Sekacheva MI. Cytokine Profile in Lung Cancer Patients: Anti-Tumor and Oncogenic Cytokines. Cancers (Basel) 2023; 15:5383. [PMID: 38001643 PMCID: PMC10670546 DOI: 10.3390/cancers15225383] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/08/2023] [Accepted: 10/09/2023] [Indexed: 11/26/2023] Open
Abstract
Lung cancer is currently the second leading cause of cancer death worldwide. In recent years, checkpoint inhibitor immunotherapy (ICI) has emerged as a new treatment. A better understanding of the tumor microenvironment (TMJ) or the immune system surrounding the tumor is needed. Cytokines are small proteins that carry messages between cells and are known to play an important role in the body's response to inflammation and infection. Cytokines are important for immunity in lung cancer. They promote tumor growth (oncogenic cytokines) or inhibit tumor growth (anti-tumour cytokines) by controlling signaling pathways for growth, proliferation, metastasis, and apoptosis. The immune system relies heavily on cytokines. They can also be produced in the laboratory for therapeutic use. Cytokine therapy helps the immune system to stop the growth or kill cancer cells. Interleukins and interferons are the two types of cytokines used to treat cancer. This article begins by addressing the role of the TMJ and its components in lung cancer. This review also highlights the functions of various cytokines such as interleukins (IL), transforming growth factor (TGF), and tumor necrosis factor (TNF).
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Affiliation(s)
- Freddy Elad Essogmo
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
- Cameroon Oncology Center (COC), Douala P.O. Box 1864, Cameroon
| | - Angelina V. Zhilenkova
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Yvan Sinclair Ngaha Tchawe
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Abah Moses Owoicho
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Alexander S. Rusanov
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Alexander Boroda
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Yuliya N. Pirogova
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Zaiana D. Sangadzhieva
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Varvara D. Sanikovich
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
| | - Nikolay N. Bagmet
- Petrovsky National Research Centre of Surgery, Moscow 117418, Russia;
| | - Marina I. Sekacheva
- Institute for Personalized Oncology, Center for Digital Biodesign and Personalized Healthcare, First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University), Moscow 119991, Russia; (F.E.E.); (A.V.Z.); (Y.S.N.T.); (A.M.O.); (A.S.R.); (A.B.); (Y.N.P.); (Z.D.S.); (V.D.S.)
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Schmidt-Arras D, Rose-John S. Endosomes as Signaling Platforms for IL-6 Family Cytokine Receptors. Front Cell Dev Biol 2021; 9:688314. [PMID: 34141712 PMCID: PMC8204807 DOI: 10.3389/fcell.2021.688314] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 04/28/2021] [Indexed: 12/12/2022] Open
Abstract
Interleukin-6 (IL-6) is the name-giving cytokine of a family of eleven members, including IL-6, CNTF, LIF, and IL-27. IL-6 was first recognized as a B-cell stimulating factor but we now know that the cytokine plays a pivotal role in the orchestration of inflammatory processes as well as in inflammation associated cancer. Moreover, IL-6 is involved in metabolic regulation and it has been shown to be involved in major neural activities such as neuroprotection, which can help to repair and to reduce brain damage. Receptor complexes of all members formed at the plasma membrane contain one or two molecules of the signaling receptor subunit GP130 and the mechanisms of signal transduction are well understood. IL-6 type cytokines can also signal from endomembranes, in particular the endosome, and situations have been reported in which endocytosis of receptor complexes are a prerequisite of intracellular signaling. Moreover, pathogenic GP130 variants were shown to interfere with spatial activation of downstream signals. We here summarize the molecular mechanisms underlying spatial regulation of IL-6 family cytokine signaling and discuss its relevance for pathogenic processes.
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Affiliation(s)
- Dirk Schmidt-Arras
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Kiel, Germany
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Cambra JM, Jauregi-Miguel A, Alvarez-Rodriguez M, Parrilla I, Gil MA, Martinez EA, Cuello C, Rodriguez-Martinez H, Martinez CA. Allogeneic Embryos Disregulate Leukemia Inhibitory Factor (LIF) and Its Receptor in the Porcine Endometrium During Implantation. Front Vet Sci 2020; 7:611598. [PMID: 33330727 PMCID: PMC7732548 DOI: 10.3389/fvets.2020.611598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/02/2020] [Indexed: 01/14/2023] Open
Abstract
Despite its advantages for pig breeding, embryo transfer (ET) has a major handicap: high embryo mortality during the pre- and implantation period, probably caused by divergent phenomena of tolerance between the immunologically unrelated (i.e., allogeneic) embryos and the recipient sow. Thus, to reach a similar maternal tolerance as in conventional breeding by artificial insemination (AI) would be the key to ET-success. For this reason, we studied the expression of the leukemia inhibitory factor (LIF) cytokine and its receptor in the pig endometrium during the implantation period (days 18 and 24) in sows subjected to ET (AL group) vs. post-cervical-AI controls (Hemi-AL group). Quantification of expression was performed at both mRNA (rt-qPCR) and protein (WB) levels. The expression of endometrial LIF on day 24 was considerably lower in ET than in AI pregnancies. Correlations between endometrial mRNA levels of LIF and LIF-R showed that, contrary to early AI-pregnancies, ET-pregnancies lack an inverse relation between cytokine and receptor levels. In conclusion, ET-pregnancies lack sufficient endometrial levels of LIF to develop adequate immunotolerance mechanisms to prevent the rejection of allogeneic ET-embryos.
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Affiliation(s)
- Josep M Cambra
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research "Campus Mare Nostrum", University of Murcia, Murcia, Spain.,Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Campus de Ciencias de la Salud, Murcia, Spain.,Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Amaia Jauregi-Miguel
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden.,Wallenberg Centre for Molecular Medicine, Linköping University, Linköping, Sweden
| | - Manuel Alvarez-Rodriguez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Inmaculada Parrilla
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research "Campus Mare Nostrum", University of Murcia, Murcia, Spain.,Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Campus de Ciencias de la Salud, Murcia, Spain
| | - Maria A Gil
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research "Campus Mare Nostrum", University of Murcia, Murcia, Spain.,Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Campus de Ciencias de la Salud, Murcia, Spain
| | - Emilio A Martinez
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research "Campus Mare Nostrum", University of Murcia, Murcia, Spain.,Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Campus de Ciencias de la Salud, Murcia, Spain
| | - Cristina Cuello
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research "Campus Mare Nostrum", University of Murcia, Murcia, Spain.,Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Campus de Ciencias de la Salud, Murcia, Spain
| | - Heriberto Rodriguez-Martinez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Cristina A Martinez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
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Poon J, Campos M, Foronjy RF, Nath S, Gupta G, Railwah C, Dabo AJ, Baumlin N, Salathe M, Geraghty P. Cigarette smoke exposure reduces leukemia inhibitory factor levels during respiratory syncytial viral infection. Int J Chron Obstruct Pulmon Dis 2019; 14:1305-1315. [PMID: 31417248 PMCID: PMC6592033 DOI: 10.2147/copd.s196658] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 04/12/2019] [Indexed: 12/12/2022] Open
Abstract
Background: Viral infections are considered a major driving factor of chronic obstructive pulmonary disease (COPD) exacerbations and thus contribute to disease morbidity and mortality. Respiratory syncytial virus (RSV) is a frequently detected pathogen in the respiratory tract of COPD patients during an exacerbation. We previously demonstrated in a murine model that leukemia inhibitory factor (LIF) expression was increased in the lungs during RSV infection. Subduing LIF signaling in this model enhanced lung injury and airway hypersensitivity. In this study, we investigated lung LIF levels in COPD patient samples to determine the impact of disease status and cigarette smoke exposure on LIF expression. Materials and methods: Bronchoalveolar lavage fluid (BALF) was obtained from healthy never smokers, smokers, and COPD patients, by written informed consent. Human bronchial epithelial (HBE) cells were isolated from healthy never smokers and COPD patients, grown at the air-liquid interface and infected with RSV or stimulated with polyinosinic:polycytidylic acid (poly (i:c)). Mice were exposed to cigarette smoke daily for 6 months and were subsequently infected with RSV. LIF expression was profiled in all samples. Results: In human BALF, LIF protein was significantly reduced in both smokers and COPD patients compared to healthy never smokers. HBE cells isolated from COPD patients produced less LIF compared to never smokers during RSV infection or poly (i:c) stimulation. Animals exposed to cigarette smoke had reduced lung levels of LIF and its corresponding receptor, LIFR. Smoke-exposed animals had reduced LIF expression during RSV infection. Two possible factors for reduced LIF levels were increased LIF mRNA instability in COPD epithelia and proteolytic degradation of LIF protein by serine proteases. Conclusions: Cigarette smoke is an important modulator for LIF expression in the lungs. Loss of LIF expression in COPD could contribute to a higher degree of lung injury during virus-associated exacerbations.
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Affiliation(s)
- Justin Poon
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Michael Campos
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Miami, Miami, FL, USA
| | - Robert F Foronjy
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Sridesh Nath
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Gayatri Gupta
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Christopher Railwah
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Abdoulaye J Dabo
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Nathalie Baumlin
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Matthias Salathe
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Patrick Geraghty
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
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Davis SM, Collier LA, Winford ED, Leonardo CC, Ajmo CT, Foran EA, Kopper TJ, Gensel JC, Pennypacker KR. Leukemia inhibitory factor modulates the peripheral immune response in a rat model of emergent large vessel occlusion. J Neuroinflammation 2018; 15:288. [PMID: 30322390 PMCID: PMC6190542 DOI: 10.1186/s12974-018-1326-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 10/05/2018] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND The migration of peripheral immune cells and splenocytes to the ischemic brain is one of the major causes of delayed neuroinflammation after permanent large vessel stroke. Other groups have demonstrated that leukemia inhibitory factor (LIF), a cytokine that promotes neural cell survival through upregulation of antioxidant enzymes, promotes an anti-inflammatory phenotype in several types of immune cells. The goal of this study was to determine whether LIF treatment modulates the peripheral immune response after stroke. METHODS Young male (3 month) Sprague-Dawley rats underwent sham surgery or permanent middle cerebral artery occlusion (MCAO). Animals were administered LIF (125 μg/kg) or PBS at 6, 24, and 48 h prior to euthanization at 72 h. Bone marrow-derived macrophages were treated with LIF (20 ng/ml) or PBS after stimulation with interferon gamma + LPS. Western blot was used to measure protein levels of CD11b, IL-12, interferon inducible protein-10, CD3, and the LIF receptor in spleen and brain tissue. ELISA was used to measure IL-10, IL-12, and interferon gamma. Isolectin was used to label activated immune cells in brain tissue sections. Statistical analysis was performed using one-way ANOVA and Student's t test. A Kruskal-Wallis test followed by Bonferroni-corrected Mann-Whitney tests was performed if data did not pass the D'Agostino-Pearson normality test. RESULTS LIF-treated rats showed significantly lower levels of the LIF receptor and interferon gamma in the spleen and CD11b levels in the brain compared to their PBS-treated counterparts. Fluorescence from isolectin-binding immune cells was more prominent in the ipsilateral cortex and striatum after PBS treatment compared to LIF treatment. MCAO + LIF significantly decreased splenic levels of CD11b and CD3 compared to sham surgery. MCAO + PBS treatment significantly elevated splenic levels of interferon inducible protein-10 at 72 h after MCAO, while LIF treatment after MCAO returned interferon inducible protein 10 to sham levels. LIF administration with interferon gamma + LPS significantly reduced the IL-12/IL-10 production ratio compared to macrophages treated with interferon gamma + LPS alone. CONCLUSIONS These data demonstrate that LIF promotes anti-inflammatory signaling through alterations of the IL-12/interferon gamma/interferon inducible protein 10 pathway.
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Affiliation(s)
- Stephanie M. Davis
- Department of Neurology, University of Kentucky, 741 S. Limestone BBSRB B457, Lexington, KY 40536-0905 USA
| | - Lisa A. Collier
- Department of Neurology, University of Kentucky, 741 S. Limestone BBSRB B457, Lexington, KY 40536-0905 USA
| | - Edric D. Winford
- Department of Neuroscience, University of Kentucky, 800 Rose St. Lexington, Lexington, KY 40536 USA
| | - Christopher C. Leonardo
- Department of Molecular Pharmacology and Physiology, University of South Florida, 12901 Bruce B. Downs Blvd MDC 8, Tampa, FL 33612 USA
| | - Craig T. Ajmo
- Department of Molecular Pharmacology and Physiology, University of South Florida, 12901 Bruce B. Downs Blvd MDC 8, Tampa, FL 33612 USA
| | - Elspeth A. Foran
- Department of Molecular Medicine, University of South Florida, 12901 Bruce B. Downs Blvd MDC 7, Tampa, FL 33612 USA
| | - Timothy J. Kopper
- Department of Physiology, University of Kentucky, 800 Rose St. MS508, Lexington, KY 40536 USA
- Spinal Cord and Brain Injury Repair Center, University of Kentucky, 741 S. Limestone BBSRB B463, Lexington, KY 40536 USA
| | - John C. Gensel
- Department of Physiology, University of Kentucky, 800 Rose St. MS508, Lexington, KY 40536 USA
- Spinal Cord and Brain Injury Repair Center, University of Kentucky, 741 S. Limestone BBSRB B463, Lexington, KY 40536 USA
| | - Keith R. Pennypacker
- Department of Neurology, University of Kentucky, 741 S. Limestone BBSRB B457, Lexington, KY 40536-0905 USA
- Department of Neuroscience, University of Kentucky, 800 Rose St. Lexington, Lexington, KY 40536 USA
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Fisher KH, Fragiadaki M, Pugazhendhi D, Bausek N, Arredondo MA, Thomas SJ, Brown S, Zeidler MP. A genome-wide RNAi screen identifies MASK as a positive regulator of cytokine receptor stability. J Cell Sci 2018; 131:jcs.209551. [PMID: 29848658 DOI: 10.1242/jcs.209551] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 05/16/2018] [Indexed: 01/01/2023] Open
Abstract
Cytokine receptors often act via the Janus kinase and signal transducer and activator of transcription (JAK/STAT) pathway to form a signalling cascade that is essential for processes such as haematopoiesis, immune responses and tissue homeostasis. In order to transduce ligand activation, cytokine receptors must dimerise. However, mechanisms regulating their dimerisation are poorly understood. In order to better understand the processes regulating cytokine receptor levels, and their activity and dimerisation, we analysed the highly conserved JAK/STAT pathway in Drosophila, which acts via a single receptor, known as Domeless. We performed a genome-wide RNAi screen in Drosophila cells, identifying MASK as a positive regulator of Domeless dimerisation and protein levels. We show that MASK is able to regulate receptor levels and JAK/STAT signalling both in vitro and in vivo We also show that its human homologue, ANKHD1, is also able to regulate JAK/STAT signalling and the levels of a subset of pathway receptors in human cells. Taken together, our results identify MASK as a novel regulator of cytokine receptor levels, and suggest functional conservation, which may have implications for human health.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Katherine H Fisher
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Maria Fragiadaki
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Dhamayanthi Pugazhendhi
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Nina Bausek
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Maria A Arredondo
- Department of Oncology & Human Metabolism, The University of Sheffield, Sheffield, S10 2RX, UK
| | - Sally J Thomas
- Department of Oncology & Human Metabolism, The University of Sheffield, Sheffield, S10 2RX, UK
| | - Stephen Brown
- The Sheffield RNAi Screening Facility, Department of Biomedical Science, The University of Sheffield, S10 2TN, UK
| | - Martin P Zeidler
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
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Engelhardt M, Hamad MIK, Jack A, Ahmed K, König J, Rennau LM, Jamann N, Räk A, Schönfelder S, Riedel C, Wirth MJ, Patz S, Wahle P. Interneuron synaptopathy in developing rat cortex induced by the pro-inflammatory cytokine LIF. Exp Neurol 2018; 302:169-180. [PMID: 29305051 DOI: 10.1016/j.expneurol.2017.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/08/2017] [Accepted: 12/26/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Maren Engelhardt
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany; Institute of Neuroanatomy, Medical Faculty Mannheim, CBTM, Heidelberg University, Germany
| | - Mohammad I K Hamad
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Alexander Jack
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Küpra Ahmed
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Jennifer König
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Lisa Marie Rennau
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Nora Jamann
- Institute of Neuroanatomy, Medical Faculty Mannheim, CBTM, Heidelberg University, Germany
| | - Andrea Räk
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Sabine Schönfelder
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Christian Riedel
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany
| | - Markus Joseph Wirth
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany; Institute of Biology-II, RWTH Aachen University, Aachen, Germany
| | - Silke Patz
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany; Research Unit for Experimental Neurotraumatology, Department of Neurosurgery, Medical University of Graz, Graz, Austria
| | - Petra Wahle
- Developmental Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Germany.
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Davis SM, Pennypacker KR. The role of the leukemia inhibitory factor receptor in neuroprotective signaling. Pharmacol Ther 2017; 183:50-57. [PMID: 28827150 DOI: 10.1016/j.pharmthera.2017.08.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Several neurotropic cytokines relay their signaling through the leukemia inhibitory factor receptor. This 190kDa subunit couples with the 130kDa gp130 subunit to transduce intracellular signaling in neurons and oligodendrocytes that leads to expression of genes associated with neurosurvival. Moreover, activation of this receptor alters the phenotype of immune cells to an anti-inflammatory one. Although cytokines that activate the leukemia inhibitory factor receptor have been studied in the context of neurodegenerative disease, therapeutic targeting of the specific receptor subunit has been understudied in by comparison. This review examines the role of this receptor in the CNS and immune system, and its application in the treatment in stroke and other brain pathologies.
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Affiliation(s)
- Stephanie M Davis
- Center for Advanced Translational Stroke Science, Departments of Neurology and Neuroscience, University of Kentucky, Lexington, KY 40536, United States
| | - Keith R Pennypacker
- Center for Advanced Translational Stroke Science, Departments of Neurology and Neuroscience, University of Kentucky, Lexington, KY 40536, United States.
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9
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Leukemia Inhibitory Factor Protects Neurons from Ischemic Damage via Upregulation of Superoxide Dismutase 3. Mol Neurobiol 2016; 54:608-622. [PMID: 26746670 PMCID: PMC5026633 DOI: 10.1007/s12035-015-9587-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 11/29/2015] [Indexed: 12/13/2022]
Abstract
Leukemia inhibitory factor (LIF) has been shown to protect oligodendrocytes from ischemia by upregulating endogenous antioxidants. The goal of this study was to determine whether LIF protects neurons during stroke by upregulating superoxide dismutase 3 (SOD3). Animals were administered phosphate-buffered saline (PBS) or 125 μg/kg LIF at 6, 24, and 48 h after middle cerebral artery occlusion or sham surgery. Neurons were isolated from rat pups on embryonic day 18 and used between 7 and 15 days in culture. Cells were treated with LIF and/or 10 μM Akt inhibitor IV with PBS and 0.1 % DMSO acting as vehicle controls. Neurons transfected with scrambled or SOD3 small interfering RNA (siRNA) were subjected to 24-h ischemia after PBS or LIF treatment. LIF significantly increased superoxide dismutase activity and SOD3 expression in ipsilateral brain tissue compared to PBS. Following 24-h ischemia, LIF reduced cell death and increased SOD3 messenger RNA (mRNA) in vitro compared to PBS. Adding Akt inhibitor IV with LIF counteracted the decrease in cell death. Partially silencing the expression of SOD3 using siRNA prior to LIF treatment counteracted the protective effect of LIF-alone PBS treatment. These results indicate that LIF protects neurons in vivo and in vitro via upregulation of SOD3.
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Sims NA. Cardiotrophin-like cytokine factor 1 (CLCF1) and neuropoietin (NP) signalling and their roles in development, adulthood, cancer and degenerative disorders. Cytokine Growth Factor Rev 2015. [DOI: 10.1016/j.cytogfr.2015.07.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Elsaid MF, Chalhoub N, Kamel H, Ehlayel M, Ibrahim N, Elsaid A, Kumar P, Khalak H, Ilyin VA, Suhre K, Abdel Aleem A. Non-truncating LIFR mutation: causal for prominent congenital pain insensitivity phenotype with progressive vertebral destruction? Clin Genet 2015; 89:210-6. [PMID: 26285796 DOI: 10.1111/cge.12657] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 08/16/2015] [Accepted: 08/17/2015] [Indexed: 11/30/2022]
Abstract
We present a Qatari family with two children who displayed a characteristic phenotype of congenital marked pain insensitivity with hypohidrosis and progressive aseptic destruction of joints and vertebrae resembling that of hereditary sensory and autonomic neuropathies (HSANs). The patients, aged 10 and 14, remained of uncertain genetic diagnosis until whole genome sequencing was pursued. Genome sequencing identified a novel homozygous C65S mutation in the LIFR gene that is predicted to markedly destabilize and alter the structure of a particular domain and consequently to affect the functionality of the whole multi-domain LIFR protein. The C65S mutant LIFR showed altered glycosylation and an elevated expression level that might be attributed to a slow turnover of the mutant form. LIFR mutations have been reported in Stüve-Wiedemann syndrome (SWS), a severe autosomal recessive skeletal dysplasia often resulting in early death. Our patients share some clinical features of rare cases of SWS long-term survivors; however, they also phenocopy HSAN due to the marked pain insensitivity phenotype and progressive bone destruction. Screening for LIFR mutations might be warranted in genetically unresolved HSAN phenotypes.
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Affiliation(s)
- M F Elsaid
- Section of Neurology, Pediatrics Department, Hamad Medical Corporation, Doha, Qatar
| | - N Chalhoub
- Neurogenetics Program, Weill Cornell Medical College, Doha, Qatar.,Neurology and Neuroscience Department, Weill Cornell Medical College, New York, NY, USA
| | - H Kamel
- Section of Radiology, Pediatrics Department, Hamad Medical Corporation, Doha, Qatar
| | - M Ehlayel
- Section of Allergy and Immunology, Pediatrics Department, Hamad Medical Corporation, Doha, Qatar
| | - N Ibrahim
- Medical Molecular Genetics, Department, National Research Centre, Cairo, Egypt
| | - A Elsaid
- Faculty of Medicine, Suez Canal University, Cairo, Egypt
| | - P Kumar
- Bioinformatics Core, Weill Cornell Medical College, Doha, Qatar
| | - H Khalak
- Advanced Computing, Weill Cornell Medical College, Doha, Qatar
| | - V A Ilyin
- Lane Center for Computational Biology, Carnegie Mellon University, Pittsburgh, PA, USA.,Lane Center for Computational Biology, Carnegie Mellon University, Doha, Qatar
| | - K Suhre
- Bioinformatics Core, Weill Cornell Medical College, Doha, Qatar.,Physiology and Biophysics Department, Weill Cornell Medical College, New York, NY, USA.,Physiology and Biophysics Department, Weill Cornell Medical College, Doha, Qatar
| | - A Abdel Aleem
- Neurogenetics Program, Weill Cornell Medical College, Doha, Qatar.,Neurology and Neuroscience Department, Weill Cornell Medical College, New York, NY, USA
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12
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Tian S, Su X, Qi L, Jin XH, Hu Y, Wang CL, Ma X, Xia HF. MiR-143 and rat embryo implantation. Biochim Biophys Acta Gen Subj 2014; 1850:708-21. [PMID: 25486623 DOI: 10.1016/j.bbagen.2014.11.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 11/26/2014] [Accepted: 11/29/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND To study the role of miR-143 during embryo implantation in rat. METHODS MiR-143 expression in rat early pregnancy was detected by Northern blot. The relation between miR-143 and Lifr predicted and confirmed by bioinformatics method, dual-luciferase activity assay, Western blot and immunohistochemistry. The role of miR-143 was detected by MTS, Edu and ranswell chamber assays. RESULTS The expression level of miR-143 on gestation day 5-8 (g.d. 5-8) was higher than on g.d. 3-4 in uteri of pregnant rat. MiR-143 was mainly localized in the superficial stroma/primary decidual zone, luminal and glandular epithelia. The expression of miR-143 was not significantly influenced by pseudopregnancy, but the activation of delayed implantation and experimentally induced decidualization significantly promoted miR-143 expression. Over-expression of miR-143 in human endometrial stromal cells (ESCs) inhibited cell proliferation, migration and invasion. Knockdown of miR-143 promoted cell proliferation and invasion. The results of recombinant luciferase reporters showed that miR-143 could bind to the 3¢-untranslated region (UTR) of leukemia inhibitory factor receptor (Lifr) to inhibit Lifr translation. CONCLUSIONS Uterine miR-143 may be involved in the successful pregnancy, especially during the process of blastocyst implantation through regulating Lifr. GENERAL SIGNIFICANCE This study may have the potential to provide new insights into the understanding of miR-143 function during embryo implantation.
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Affiliation(s)
- Shi Tian
- Haidian Maternal & Child Health Hospital, Beijing 100080, China
| | - Xing Su
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China
| | - Lu Qi
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China
| | - Xiao-Hua Jin
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China
| | - Yi Hu
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China
| | - Chun-Ling Wang
- Cadre Ward, China Mei-Tan General Hospital, Beijing 100028, China.
| | - Xu Ma
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China.
| | - Hong-Fei Xia
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China.
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13
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Liu SC, Chang YS. Role of leukemia inhibitory factor in nasopharyngeal carcinogenesis. Mol Cell Oncol 2014; 1:e29900. [PMID: 27308310 PMCID: PMC4905174 DOI: 10.4161/mco.29900] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/18/2014] [Accepted: 06/19/2014] [Indexed: 11/19/2022]
Abstract
Although Epstein-Barr virus-associated nasopharyngeal carcinoma (NPC) is a highly radiosensitive cancer, approximately 20% of patients with NPC develop local recurrence after radiation therapy. Multiple proinflammatory cytokines are thought to protect NPC tumor cells from immune surveillance and therapeutic interventions. The cytokine leukemia inhibitory factor (LIF) is a critical component of the NPC microenvironment. LIF influences tumor growth and survival, and is therefore considered a potential therapeutic target and/or prognostic predictor for NPC. High LIF levels have been detected in the circulating blood of patients with recurrent NPC and NPC tumor cells. This review discusses the molecular mechanisms that link LIF to NPC tumor progression and radioresistance.
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Affiliation(s)
- Shu-Chen Liu
- Molecular Medicine Research Center; Chang Gung University; Taoyuan, Taiwan
| | - Yu-Sun Chang
- Molecular Medicine Research Center; Chang Gung University; Taoyuan, Taiwan
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14
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Mikelonis D, Jorcyk CL, Tawara K, Oxford JT. Stüve-Wiedemann syndrome: LIFR and associated cytokines in clinical course and etiology. Orphanet J Rare Dis 2014; 9:34. [PMID: 24618404 PMCID: PMC3995696 DOI: 10.1186/1750-1172-9-34] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 03/06/2014] [Indexed: 12/14/2022] Open
Abstract
Stüve-Wiedemann syndrome (STWS; OMIM #610559) is a rare bent-bone dysplasia that includes radiologic bone anomalies, respiratory distress, feeding difficulties, and hyperthermic episodes. STWS usually results in infant mortality, yet some STWS patients survive into and, in some cases, beyond adolescence. STWS is caused by a mutation in the leukemia inhibitory factor receptor (LIFR) gene, which is inherited in an autosomally recessive pattern. Most LIFR mutations resulting in STWS are null mutations which cause instability of the mRNA and prevent the formation of LIFR, impairing the signaling pathway. LIFR signaling usually follows the JAK/STAT3 pathway, and is initiated by several interleukin-6-type cytokines. STWS is managed on a symptomatic basis since there is no treatment currently available.
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Affiliation(s)
| | | | | | - Julia Thom Oxford
- Boise State University, Department of Biological Sciences, Biomolecular Research Center, 1910 University Drive, Boise State University, Boise ID 83725, USA.
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15
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Abstract
Multiple studies have shown that the cytokine leukemia inhibitory factor (LIF) is protective of the myocardium in the acute stress of ischemia-reperfusion. All three major intracellular signaling pathways that are activated by LIF in cardiac myocytes have been linked to actions that protect against oxidative stress and cell death, either at the level of the mitochondrion or via nuclear transcription. In addition, LIF has been shown to contribute to post-myocardial infarction cardiac repair and regeneration, by stimulating the homing of bone marrow-derived cardiac progenitors to the injured myocardium, the differentiation of resident cardiac stem cells into endothelial cells, and neovascularization. Whether LIF offers protection to the heart under chronic stress such as hypertension-induced cardiac remodeling and heart failure is not known. However, mice with cardiac myocyte restricted knockout of STAT3, a principal transcription factor activated by LIF, develop heart failure with age, and cardiac STAT3 levels are reported to be decreased in heart failure patients. In addition, endogenously produced LIF has been implicated in the cholinergic transdiffrentiation that may serve to attenuate sympathetic overdrive in heart failure and in the peri-infarct region of the heart after myocardial infarction. Surprisingly, therapeutic strategies to exploit the beneficial actions of LIF on the injured myocardium have received scant attention. Nor is it established whether the purported so-called adverse effects of LIF observed in isolated cardiac myocytes have physiological relevance in vivo. Here we present an overview of the actions of LIF in the heart with the goal of stimulating further research into the translational potential of this pleiotropic cytokine.
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16
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Zgheib C, Zouein FA, Kurdi M, Booz GW. Differential STAT3 signaling in the heart: Impact of concurrent signals and oxidative stress. JAKSTAT 2013; 1:101-10. [PMID: 23904970 PMCID: PMC3670289 DOI: 10.4161/jkst.19776] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Multiple lines of evidence suggest that the transcription factor STAT3 is linked to a protective and reparative response in the heart. Thus, increasing duration or intensity of STAT3 activation ought to minimize damage and improve heart function under conditions of stress. Two recent studies using genetic mouse models, however, report findings that appear to refute this proposition. Unfortunately, studies often approach the question of the role of STAT3 in the heart from the perspective that all STAT3 signaling is equivalent, particularly when it comes to signaling by IL-6 type cytokines, which share the gp130 signaling protein. Moreover, STAT3 activation is typically equated with phosphorylation of a critical tyrosine residue. Yet, STAT3 transcriptional behavior is subject to modulation by serine phosphorylation, acetylation, and redox status of the cell. Unphosphorylated STAT3 is implicated in gene induction as well. Thus, how STAT3 is activated and also what other signaling events are occurring at the same time is likely to impact on the outcome ultimately linked to STAT3. Notably STAT3 may serve as a scaffold protein allowing it to interact with other singling pathways. In this context, canonical gp130 cytokine signaling may function to integrate STAT3 signaling with a protective PI3K/AKT signaling network via mutual involvement of JAK tyrosine kinases. Differences in the extent of integration may occur between those cytokines that signal through gp130 homodimers and those through heterodimers of gp130 with a receptor α chain. Signal integration may have importance not only for deciding the particular gene profile linked to STAT3, but for the newly described mitochondrial stabilization role of STAT3 as well. In addition, disruption of integrated gp130-related STAT3 signaling may occur under conditions of oxidative stress, which negatively impacts on JAK catalytic activity. For these reasons, understanding the importance of STAT3 signaling to heart function requires a greater appreciation of the plasticity of this transcription factor in the context in which it is investigated.
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Affiliation(s)
- Carlos Zgheib
- Department of Pharmacology and Toxicology; School of Medicine; and the Center for Excellence in Cardiovascular-Renal Research; The University of Mississippi Medical Center; Jackson, MS USA
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17
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David E, Tirode F, Baud'huin M, Guihard P, Laud K, Delattre O, Heymann MF, Heymann D, Redini F, Blanchard F. Oncostatin M is a growth factor for Ewing sarcoma. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 181:1782-95. [PMID: 22982441 DOI: 10.1016/j.ajpath.2012.07.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 06/28/2012] [Accepted: 07/18/2012] [Indexed: 11/18/2022]
Abstract
Primary bone tumors, osteosarcomas and chondrosarcomas, derive from mesenchymal stem cells committed into osteoblasts and chondrocytes; in Ewing sarcomas (ESs), the oncogenic fusion protein EWS-FLI1 prevents mesenchymal differentiation and induces neuroectodermic features. Oncostatin M (OSM) is a cytokine from the IL-6 family that modulates proliferation and differentiation in numerous cells. The basis for inhibition versus induction of proliferation by this cytokine is obscure, although MYC was described as a potent molecular switch in OSM signaling. We show herein that, in contrast to osteosarcomas and chondrosarcomas, for which OSM was cytostatic, OSM induced proliferation of ES cell lines. Knockdown experiments demonstrated that growth induction by OSM depends on both types I [leukemia inhibitory factor receptor (LIFR)] and II [OSM receptor (OSMR)] receptors, high STAT3 activation, and induction of MYC to a high expression level. Indeed, ES cell lines, mice xenografts, and patient biopsy specimens poorly expressed LIF, precluding LIFR lysosomal degradation and OSMR transcriptional induction, thus leading to a high LIFR/OSMR ratio. Because other neuroectodermic tumors (ie, glioma, medulloblastoma, and neuroblastoma) had a similar expression profile, the main role of EWS-FLI1 could be through maintenance of stemness and neuroectodermic features, characterized by a low LIF, a high LIFR/OSMR ratio, and high MYC expression. Thus, this study on rare bone malignancies gives valuable insights on more common cancer regulatory mechanisms and could provide new therapeutic opportunities.
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18
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Mathieu ME, Saucourt C, Mournetas V, Gauthereau X, Thézé N, Praloran V, Thiébaud P, Bœuf H. LIF-dependent signaling: new pieces in the Lego. Stem Cell Rev Rep 2012; 8:1-15. [PMID: 21537995 PMCID: PMC3285761 DOI: 10.1007/s12015-011-9261-7] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
LIF, a member of the IL6 family of cytokine, displays pleiotropic effects on various cell types and organs. Its critical role in stem cell models (e.g.: murine ES, human mesenchymal cells) and its essential non redundant function during the implantation process of embryos, in eutherian mammals, put this cytokine at the core of many studies aiming to understand its mechanisms of action, which could benefit to medical applications. In addition, its conservation upon evolution raised the challenging question concerning the function of LIF in species in which there is no implantation. We present the recent knowledge about the established and potential functions of LIF in different stem cell models, (embryonic, hematopoietic, mesenchymal, muscle, neural stem cells and iPSC). We will also discuss EVO-DEVO aspects of this multifaceted cytokine.
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Affiliation(s)
- Marie-Emmanuelle Mathieu
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Claire Saucourt
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Virginie Mournetas
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Xavier Gauthereau
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Nadine Thézé
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Vincent Praloran
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Pierre Thiébaud
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Hélène Bœuf
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
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19
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Nathanson NM. Regulation of neurokine receptor signaling and trafficking. Neurochem Int 2012; 61:874-8. [PMID: 22306348 DOI: 10.1016/j.neuint.2012.01.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 01/08/2012] [Accepted: 01/12/2012] [Indexed: 01/17/2023]
Abstract
Leukemia inhibitory factor (LIF) and ciliary neurotrophic factor (CNTF) are neurally active cytokines, or neurokines. LIF signals through a receptor consisting of gp130 and the low affinity LIF receptor (LIFR), while the CNTF receptor consists of gp130, LIFR, and the low affinity CNTF receptor (CNTFR). Ser1044 of the LIFR is phosphorylated by Erk1/2 MAP kinase. Stimulation of neural cells with growth factors which strongly activate Erk1/2 decreases LIF-mediated signal transduction due to increased degradation of the LIFR as a consequence of Erk1/2-dependent phosphorylation of the receptor at Ser1044. The gp130 receptor subunit is phosphorylated, at least in part by calmodulin-dependent protein kinase II, at Ser782, which is adjacent to a dileucine internalization motif. Ser782 appears to negatively regulate cytokine receptor expression, as mutagenesis of Ser782 results in increased gp130 expression and cytokine-induced neuropeptide gene transcription. The LIFR and gp130 are transmembrane proteins, while CNTFR is a peripheral membrane protein attached to the cell surface via a glycosylphosphatidylinositol tail. In unstimulated cells, CNTFR but not LIFR and gp130 is localized to detergent-resistant lipid rafts. Stimulation of cells with CNTFR causes translocation of LIFR and gp130 into the lipid rafts, while stimulation with LIF does not induce receptor translocation, raising the possibility that CNTF could induce different patterns of signaling and/or receptor trafficking than caused by LIF. We used a compartmentalized culture system to examine the mechanisms for retrograde signaling by LIF and CNTF from distal neurites to the cell bodies of mouse sympathetic neurons. Stimulation with neurokines of the distal neurites of sympathetic neurons grown in a compartmentalized culture system resulted in the activation and nuclear translocation of the transcription factor Stat3. Retrograde signaling required Jak kinase activity in the cell body but not the distal neurites, and could be blocked by inhibitors of microtubule but not microfilament function. The results are consistent with a signaling endosomes model in which the ctyokine/receptor complex is transported back to the cell body where Stat3 is activated. While both LIF and CNTF mediate retrograde activation of Stat3, the kinetics for retrograde signaling differ for the two neurokines.
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Affiliation(s)
- Neil M Nathanson
- Department of Pharmacology, Box 357750, University of Washington, Seattle, WA 98195-7750, United States.
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20
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Spofford CM, Mohan S, Kang S, Jang JH, Brennan TJ. Evaluation of leukemia inhibitory factor (LIF) in a rat model of postoperative pain. THE JOURNAL OF PAIN 2011; 12:819-32. [PMID: 21729793 DOI: 10.1016/j.jpain.2011.02.351] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Revised: 02/10/2011] [Accepted: 02/17/2011] [Indexed: 01/05/2023]
Abstract
UNLABELLED Postoperative pain remains a significant problem despite optimal treatment with current pharmaceutical agents. In an effort to provide better postoperative pain control, there is a need to understand the factors that contribute to the development of pain after surgery. Leukemia inhibitory factor (LIF) is a pleiotropic cytokine released from tissues after injury. We hypothesized that LIF expression in skin, muscle, and dorsal root ganglion (DRG) would increase after plantar incision. The mRNA and protein expression of LIF and LIF receptor (LIF-R) were measured after plantar incision in the rat. Pain behaviors, immunohistochemistry, and C-fiber heat responses to LIF were also studied. LIF expression increased after incision in skin and muscle, and LIF-R was present in large and small DRG neurons. LIF administration to the hindpaw increased pain behaviors, a process that was reversed by anti-LIF. However, LIF and anti-LIF treatment at the time of incision did not augment or ameliorate pain behaviors. LIF treatment activated the second messenger system, JAK-STAT3, in cultured DRG neurons, but failed to alter spontaneous activity or heat responses in C-fiber nociceptors. In conclusion, LIF is not a target for postoperative analgesia; LIF may be important for skin and muscle repair and regeneration after incision. PERSPECTIVE This article highlights an incision pain model for the study of factors involved in nociception. The study demonstrates that LIF in is an unlikely target for novel early postoperative analgesics.
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MESH Headings
- Animals
- Antibodies/therapeutic use
- Calcitonin Gene-Related Peptide/genetics
- Calcitonin Gene-Related Peptide/metabolism
- Cells, Cultured
- Disease Models, Animal
- Ganglia, Spinal/metabolism
- Ganglia, Spinal/pathology
- Humans
- Hyperalgesia/physiopathology
- Leukemia Inhibitory Factor/administration & dosage
- Leukemia Inhibitory Factor/genetics
- Leukemia Inhibitory Factor/immunology
- Leukemia Inhibitory Factor/metabolism
- Male
- Muscle, Skeletal/metabolism
- Nerve Fibers, Unmyelinated/physiology
- Neurons/metabolism
- Pain Threshold/physiology
- Pain, Postoperative/drug therapy
- Pain, Postoperative/metabolism
- Pain, Postoperative/pathology
- RNA, Messenger/metabolism
- Rats
- Rats, Sprague-Dawley
- Receptors, OSM-LIF/metabolism
- STAT3 Transcription Factor/metabolism
- Skin/innervation
- Skin/metabolism
- Time Factors
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21
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White UA, Stewart WC, Stephens JM. Gp130 cytokines exert differential patterns of crosstalk in adipocytes both in vitro and in vivo. Obesity (Silver Spring) 2011; 19:903-10. [PMID: 21164505 PMCID: PMC3080457 DOI: 10.1038/oby.2010.293] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Glycoprotein 130 (Gp130) cytokines are involved in the regulation of numerous biological processes, including hematopoiesis, immune response, inflammation, cardiovascular action, and neuronal survival. These cytokines share gp130 as a common signal transducer in their receptor complex and typically activate signal transducer and activator of transcription (STAT) 3. Studies have shown that several gp130 cytokines have differential effects on both adipogenesis and insulin-stimulated glucose uptake. Yet, the complex interactions of these cytokines in adipose tissue have not been studied. Gp130 cytokines are differentially regulated in multiple tissues due to the presence of additional receptor components that are required for signaling, including the leukemia inhibitory factor receptor (LIFR). Previous studies from our laboratory highlighted the ability of specific gp130 cytokines to crosstalk in adipocytes that correlated with LIFR degradation. Crosstalk is defined as the ability of one cytokine to modulate the signaling of another cytokine. Our novel studies reveal that white adipose tissue is highly responsive to gp130 cytokines, and we provide the first evidence that these cytokines can exert inhibitory crosstalk in adipose tissue in vivo. Moreover, several gp130 cytokines that use the LIFR, including cardiotrophin-1 (CT-1), LIF, and human oncostatin M (hOSM), can alter the subsequent signaling of other family members in adipocytes both in vitro and in vivo. Our data also show that murine OSM and neuropoietin do not crosstalk in the same manner as other gp130 cytokines, which likely results from their inability to activate the LIFR. Overall, we have observed distinctive patterns of crosstalk signaling by gp130 cytokines in adipocytes in vitro and in vivo and demonstrate the crosstalk is not dependent on new protein synthesis or extracellular-signal-regulated kinase activation.
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Affiliation(s)
- Ursula A. White
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
| | - William C. Stewart
- Department of Biology, Middle Tennessee State University, Murfreesboro, Tennessee, USA
| | - Jacqueline M. Stephens
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
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22
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Hanson JM, Mol JA, Meij BP. Expression of leukemia inhibitory factor and leukemia inhibitory factor receptor in the canine pituitary gland and corticotrope adenomas. Domest Anim Endocrinol 2010; 38:260-71. [PMID: 20036483 DOI: 10.1016/j.domaniend.2009.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Revised: 11/02/2009] [Accepted: 11/20/2009] [Indexed: 12/17/2022]
Abstract
Leukemia inhibitory factor (LIF) is a pleiotropic cytokine of the IL-6 family that activates the hypothalamic-pituitary-adrenal axis and promotes corticotrope cell differentiation during development. The aim of this study was to investigate the expression of LIF and its receptor (LIFR) in the canine pituitary gland and in corticotrope adenomas, and to perform a mutation analysis of LIFR. Using immunohistochemistry, immunofluorescence, and quantitative expression analysis, LIF and LIFR expression were studied in pituitary glands of control dogs and in specimens of corticotrope adenoma tissue collected through hypophysectomy in dogs with pituitary-dependent hypercortisolism (PDH, Cushing's disease). Using sequence analysis, cDNA was screened for mutations in the LIFR. In the control pituitary tissues and corticotrope adenomas, there was a low magnitude of LIF expression. The LIFR, however, was highly expressed and co-localized with ACTH(1-24) expression. Cytoplasmatic immunoreactivity of LIFR was preserved in corticotrope adenomas and adjacent nontumorous cells of pars intermedia. No mutation was found on mutation analysis of the complete LIFR cDNA. Surprisingly, nuclear to perinuclear immunoreactivity for LIFR was present in nontumorous pituitary cells of the pars distalis in 10 of 12 tissue specimens from PDH dogs. These data show that LIFR is highly co-expressed with adrenocorticotropic hormone (ACTH) and alpha-melanocyte-stimulating hormone (alpha-MSH) in the canine pituitary gland and in corticotrope adenomas. Nuclear immunoreactivity for LIFR in nontumorous cells of the pars distalis may indicate the presence of a corticotrope adenoma.
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Affiliation(s)
- J M Hanson
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
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23
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Shen Y, Inoue N, Heese K. Neurotrophin-4 (ntf4) mediates neurogenesis in mouse embryonic neural stem cells through the inhibition of the signal transducer and activator of transcription-3 (stat3) and the modulation of the activity of protein kinase B. Cell Mol Neurobiol 2010; 30:909-16. [PMID: 20407817 DOI: 10.1007/s10571-010-9520-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2010] [Accepted: 04/05/2010] [Indexed: 12/26/2022]
Abstract
The effect of neurotrophin-4 (Ntf4) on mouse embryonic (day-14) neural stem cell (mE14-NSC) fate determination and the mechanisms involved were investigated. Using primary mE14-NSCs, immunocytochemistry and molecular-cell biological methods, such as Western-blotting, we characterized the effect of Ntf4 on mE14-NSC differentiation. Obtained in-vitro data revealed an interesting phenomenon of Ntf4 action resulting in enhanced mE14-NSC commitment to progenitor cells of the neuronal lineage. During this process, Ntf4 suppresses the interleukin 6 (Il6) family receptor and the Notch signalling pathways by modulating their specific receptor cleavages. The observed lineage commitment is controlled via an Ntf4-mediated modulation of protein kinase B (PKB/Akt) activity and characterized by a decreased Stat3 (signal transducer and activator of transcription-3) phosphorylation status. These findings suggest that the Ntf4-activated signalling cascade is responsible for initiating a concert among sheddases, kinases, and phosphatases to mediate neurogenesis.
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Affiliation(s)
- Yanfu Shen
- Department of Molecular and Cell Biology, School of Biological Sciences, College of Science, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
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White UA, Stephens JM. Neuropoietin activates STAT3 independent of LIFR activation in adipocytes. Biochem Biophys Res Commun 2010; 395:48-50. [PMID: 20353755 DOI: 10.1016/j.bbrc.2010.03.132] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Accepted: 03/21/2010] [Indexed: 11/24/2022]
Abstract
Neuropoietin (NP) is a member of the gp130 cytokine family that is closely related to cardiotrophin-1(CT-1) and shares functional and structural features with other family members, including ciliary neurotrophic factor (CNTF) and cardiotrophin-like cytokine (CLC). Studies have shown that NP can play a role in the development of the nervous system, as well as affect adipogenesis and fat cell function. However, the signaling mechanisms utilized by NP in adipocytes have not been examined. In our present studies, we demonstrate that NP-induced activation of STAT3 tyrosine phosphorylation is independent of leukemia inhibitory factor receptor (LIFR) phosphorylation and degradation. Although it is widely accepted that NP signals via the LIFR, our studies reveal that NP results in phosphorylation of gp130, but not LIFR. These observations suggest that the profound effects that NP has on adipocytes are not mediated via LIFR signaling.
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Affiliation(s)
- Ursula A White
- Louisiana State University, Department of Biological Sciences, 202 Life Sciences Bldg., Baton Rouge, LA 70803, USA
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25
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Peerani R, Onishi K, Mahdavi A, Kumacheva E, Zandstra PW. Manipulation of signaling thresholds in "engineered stem cell niches" identifies design criteria for pluripotent stem cell screens. PLoS One 2009; 4:e6438. [PMID: 19649273 PMCID: PMC2713412 DOI: 10.1371/journal.pone.0006438] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Accepted: 06/30/2009] [Indexed: 12/22/2022] Open
Abstract
In vivo, stem cell fate is regulated by local microenvironmental parameters. Governing parameters in this stem cell niche include soluble factors, extra-cellular matrix, and cell-cell interactions. The complexity of this in vivo niche limits analyses into how individual niche parameters regulate stem cell fate. Herein we use mouse embryonic stem cells (mESC) and micro-contact printing (microCP) to investigate how niche size controls endogenous signaling thresholds. microCP is used to restrict colony diameter, separation, and degree of clustering. We show, for the first time, spatial control over the activation of the Janus kinase/signal transducer and activator of transcription pathway (Jak-Stat). The functional consequences of this niche-size-dependent signaling control are confirmed by demonstrating that direct and indirect transcriptional targets of Stat3, including members of the Jak-Stat pathway and pluripotency-associated genes, are regulated by colony size. Modeling results and empirical observations demonstrate that colonies less than 100 microm in diameter are too small to maximize endogenous Stat3 activation and that colonies separated by more than 400 microm can be considered independent from each other. These results define parameter boundaries for the use of ESCs in screening studies, demonstrate the importance of context in stem cell responsiveness to exogenous cues, and suggest that niche size is an important parameter in stem cell fate control.
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Affiliation(s)
- Raheem Peerani
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Kento Onishi
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Alborz Mahdavi
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Eugenia Kumacheva
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Peter W. Zandstra
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- * E-mail:
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Nagaoka M, Hagiwara Y, Takemura K, Murakami Y, Li J, Duncan SA, Akaike T. Design of the artificial acellular feeder layer for the efficient propagation of mouse embryonic stem cells. J Biol Chem 2008; 283:26468-76. [PMID: 18614540 DOI: 10.1074/jbc.m805037200] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Embryonic stem (ES) cells are pluripotent-undifferentiated cells that have a great interest for the investigation of developmental biology. Murine ES cells maintain their pluripotency by the supplementation of the leukemia inhibitory factor (LIF). LIF is reported to act as a matrix-anchored form, and immobilized cytokines are useful to sustain their signaling on target cells. In this study, we used the immobilizable fusion protein composed of LIF and IgG-Fc region, which was used as a model of the matrix-anchored form of LIF to establish a novel system for ES cell culture and to investigate the effect of immobilized LIF on maintenance of ES cell pluripotency. Mouse ES cells maintained their undifferentiated state on the surface coated with LIF-Fc. Furthermore, when cultured on the co-immobilized surface with LIF-Fc and E-cadherin-Fc, mouse ES cells showed characteristic scattering morphologies without colony formation, and they could maintain their undifferentiated state and pluripotency without additional LIF supplementation. The activation of LIF signaling was sustained on the co-immobilized surface. These results indicate that immobilized LIF and E-cadherin can maintain mouse ES cells efficiently and that the immobilizable LIF-Fc fusion protein is useful for the investigation of signaling pathways of an immobilized form of LIF in the maintenance of ES cell pluripotency.
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Affiliation(s)
- Masato Nagaoka
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
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27
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Port MD, Laszlo GS, Nathanson NM. Transregulation of leukemia inhibitory [corrected] factor receptor expression and function by growth factors in neuroblastoma cells. J Neurochem 2008; 106:1941-51. [PMID: 18624908 DOI: 10.1111/j.1471-4159.2008.05535.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The cytokines that signal through the leukemia inhibitory factor (LIF) receptor are members of the neuropoietic cytokine family and have varied and numerous roles in the nervous system. In this report, we have determined the effects of growth factor stimulation on LIF receptor (LIFR) expression and signal transduction in the human neuroblastoma cell line NBFL. We show here that stimulation of NBFL cells with either epidermal growth factor or fibroblast growth factor decreases the level of LIFR in an extracellular signal-regulated kinase (Erk)1/2-dependent manner and that this down-regulation is due to an increase in the apparent rate of lysosomal LIFR degradation. Growth factor-induced decreases in LIFR level inhibit both LIF-stimulated phosphorylation of signal transducers and activators of transcription 3 and LIFR-mediated gene induction. We also show that Ser1044 of LIFR, which we have previously shown to be phosphorylated by Erk1/2, is required for the inhibitory effects of growth factors. Neurons are exposed to varying combinations and concentrations of growth factors and cytokines that influence their growth, development, differentiation, and repair in vivo. These findings demonstrate that LIFR expression and signaling in neuroblastoma cells can be regulated by growth factors that are potent activators of the mitogen-activated protein kinase pathway, and thus illustrate a fundamental mechanism that underlies crosstalk between receptor tyrosine kinase and neuropoietic cytokine signaling pathways.
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Affiliation(s)
- Martha D Port
- Department of Pharmacology, University of Washington, School of Medicine, Seattle, Washington, USA
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28
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Chang CC, Chen SH, Ho SH, Yang CY, Wang HD, Tsai ML. Proteomic analysis of proteins from bronchoalveolar lavage fluid reveals the action mechanism of ultrafine carbon black-induced lung injury in mice. Proteomics 2008; 7:4388-97. [PMID: 17963277 DOI: 10.1002/pmic.200700164] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Previous studies have shown that ultrafine carbon black (ufCB) could cause oxidative stress and lung injury, but the mechanisms have not been clearly demonstrated. In this study, 1-D gel electrophoresis coupled with LC/MS/MS (1-D geLC/MS/MS) was carried out with bronchoalveolar lavage fluid (BALF) to identify proteins associated with ufCB-induced lung injury. If required, Western blot was conducted additionally to validate proteins. Thirty-three proteins were identified, including leukemia inhibitory factor receptor (LIFR) and epidermal growth factor receptor (EGFR). Western blot analysis showed that ufCB exposure caused the increases of LIFR and EGFR in BALF and decreases of both receptors in lung tissues, suggesting the acceleration of epithelial shedding from the lung and increase of cell debris with membrane proteins EGFR and LIFR in BALF. There were strong correlations between vascular endothelial growth factor (VEGF) and albumin (p<0.01) or alpha2-macroglobulin (alpha2M) in BALF (p<0.05). Importantly, antioxidant ceruloplasmin (Cp) was shown to be produced from lung epithelial cells in response to ufCB exposure. This is the first study to apply 1-D ge LC/MS/MS and experimental studies to reveal the mechanisms involved in the pathogenesis of ufCB-induced lung injury.
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Affiliation(s)
- Chih-Ching Chang
- Department of Environmental and Occupational Health, National Cheng Kung University, Tainan, Taiwan
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Yu C, Kastin AJ, Tu H, Pan W. Opposing effects of proteasomes and lysosomes on LIFR: modulation by TNF. J Mol Neurosci 2007; 32:80-9. [PMID: 17873291 DOI: 10.1007/s12031-007-0017-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Revised: 11/30/1999] [Accepted: 02/01/2007] [Indexed: 11/28/2022]
Abstract
The blood-brain barrier (BBB), a communicating interface for inflammation, transports cytokines through its endothelial cells. This study shows how tumor necrosis factor alpha (TNF) regulates the expression of the leukemia inhibitor factor receptor (LIFR) gp190 in RBE4 cells. The high expression of LIFR was rapidly downregulated by the proinflammatory agents lipopolysaccharide, TNF, and LIF. Downregulation by TNF affected LIFR endocytosis and lysosomal degradation, preceding decreased LIFR mRNA. Lysosomal inhibitors reversed the rapid disappearance of LIFR, whereas inhibition of the ubiquitin-proteasome pathway did not. Rather, blockade of proteasome activity, as well as inhibition of NFkappaB activation, reduced the basal expression of LIFR. Thus, NFkappaB activity and proteasome degradation of IkappaB stabilized LIFR and prevented its rapid lysosomal degradation. By a non-NFkappaB-mediated mechanism, TNF facilitated LIFR degradation and reduced LIFR activation indicated by pStat3. The novel opposite effects of proteasomes and lysosomes in controlling receptor expression shows the functional implications and interactions of circulating inflammatory cytokines in acutely modulating BBB activity.
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Affiliation(s)
- Chuanhui Yu
- The Blood-Brain Barrier Group, Pennington Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA
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Yu C, Kastin AJ, Pan W. TNF reduces LIF endocytosis despite increasing NFkappaB-mediated gp130 expression. J Cell Physiol 2007; 213:161-6. [PMID: 17443676 DOI: 10.1002/jcp.21105] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
To examine how the proinflammatory cytokine tumor necrosis factor alpha (TNF) modulates the response of cerebral microvessels to other cytokines, we used rat cerebral microvessel endothelial RBE4 cells to simulate the in vitro blood-brain barrier (BBB). The gp130 receptor, which is shared by the interleukin (IL)-6 family of cytokines, showed specific upregulation by TNF. TNF treatment (5 ng/ml for 30 min to 24 h) increased gp130 at both the levels of transcription and protein expression. The stability of gp130 protein was mediated by NFkappaB activity, as the inhibitors quinazoline and MG132 not only blocked the increase induced by 6 h of TNF treatment, but also reduced its basal level of expression. By contrast, the lysosomal inhibitor chloroquine and the extracellular regulated kinase inhibitor U0126 showed no effect. Despite the increase of gp130, TNF caused a significant reduction in the cell binding and endocytosis of leukemia inhibitory factor (LIF), another proinflammatory cytokine that binds to the gp130 co-receptor and its unique gp190 receptor. This is consistent with our previous findings that TNF reduces gp190 expression and Stat3 activation. Thus, TNF stimulation results in decreased responsiveness of RBE4 cells to LIF, indicating complex regulatory interactions of cytokines at the BBB.
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Affiliation(s)
- Chuanhui Yu
- Pennington Biomedical Research Center, Baton Rouge, Louisiana 70808, USA
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31
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Wei SHY, Ming-Lum A, Liu Y, Wallach D, Ong CJ, Chung SW, Moore KW, Mui ALF. Proteasome-mediated proteolysis of the interleukin-10 receptor is important for signal downregulation. J Interferon Cytokine Res 2007; 26:281-90. [PMID: 16689656 DOI: 10.1089/jir.2006.26.281] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The cytokine interleukin-10 (IL-10) is an important regulator of immune cell function, proliferation, and survival. The IL-10 receptor (IL-10R) consists of two subunits, IL-10R1 and IL-10R2, both belonging to the class II cytokine receptor superfamily. Like other members of the cytokine receptor superfamily, IL-10R stimulation leads to activation of Jak family kinases and Stat transcription factors. To identify additional signal transduction pathways used by the IL-10R, we purified 92-kDa and 100-kDa proteins that coprecipitated with IL-10R1 from IL-10-stimulated cells. Both proteins were found to be related to the 97-kDa subunit of the regulatory component of the 26S proteasome. Subsequent studies confirmed that the IL-10R1 undergoes ligand- dependent internalization and proteasome-mediated degradation. An IL-10R1 cytoplasmic domain mutant deficient for internalization exhibited prolonged signaling through Jak1 and Stat3, reinforcing the importance of receptor internalization for signal termination.
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32
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Irandoust MI, Aarts LHJ, Roovers O, Gits J, Erkeland SJ, Touw IP. Suppressor of cytokine signaling 3 controls lysosomal routing of G-CSF receptor. EMBO J 2007; 26:1782-93. [PMID: 17363902 PMCID: PMC1847666 DOI: 10.1038/sj.emboj.7601640] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2006] [Accepted: 01/31/2007] [Indexed: 01/03/2023] Open
Abstract
The hematopoietic system provides an attractive model for studying growth factor-controlled expansion and differentiation of cells in relation to receptor routing and its consequences for signal transduction. Suppressor of cytokine signaling (SOCS) proteins regulate receptor signaling partly via their ubiquitin ligase (E3)-recruiting SOCS box domain. Whether SOCS proteins affect signaling through modulating intracellular trafficking of receptors is unknown. Here, we show that a juxtamembrane lysine residue (K632) of the granulocyte colony-stimulating factor receptor (G-CSFR) plays a key role in receptor routing and demonstrate that the effects of SOCS3 on G-CSF signaling to a major extent depend on this lysine. Mutation of K632 causes accumulation of G-CSFR in early endosomes and leads to sustained activation of signal transducer and activator of transcription 5 and ERK, but not protein kinase B. Myeloid progenitors expressing G-CSFR mutants lacking K632 show a perturbed proliferation/differentiation balance in response to G-CSF. This is the first demonstration of SOCS-mediated ubiquitination and routing of a cytokine receptor and its impact on maintaining an appropriate signaling output.
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Affiliation(s)
- Mahban I Irandoust
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Lambertus H J Aarts
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Onno Roovers
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Judith Gits
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Stefan J Erkeland
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Ivo P Touw
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Hematology, Erasmus University Medical Center, PO Box 2040, 3000 CA Rotterdam, The Netherlands. Tel.: +31 1040 87837; Fax: +31 1040 89470; E-mail:
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Chattopadhyay S, Tracy E, Liang P, Robledo O, Rose-John S, Baumann H. Interleukin-31 and oncostatin-M mediate distinct signaling reactions and response patterns in lung epithelial cells. J Biol Chem 2006; 282:3014-26. [PMID: 17148439 DOI: 10.1074/jbc.m609655200] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Lung epithelial cells are primary targets of oncostatin M (OSM) and, to a lower degree, of interleukin (IL)-6 and IL-31, all members of the IL-6 cytokine family. The OSM receptor (OSMR) signals through activation of STAT and mitogen-activated protein kinase pathways to induce genes encoding differentiated cell functions, reduce cell-cell interaction, and suppress cell proliferation. IL-31 functions through the heteromeric IL-31 receptor, which shares with OSMR the OSMRbeta subunit, but does not engage gp130, the common subunit of all other IL-6 cytokine receptors. Because the response of epithelial cells to IL-31 is unknown, the action of IL-31 was characterized in the human alveolar epithelial cell line A549 in which the expression of the ligand-binding IL-31Ralpha subunit was increased. IL-31 initiated signaling that differed from other IL-6 cytokines by the particularly strong recruitment of the STAT3, ERK, JNK, and Akt pathways. IL-31 was highly effective in suppressing proliferation by altering expression of cell cycle proteins, including up-regulation of p27(Kip1) and down-regulation of cyclin B1, CDC2, CDK6, MCM4, and retinoblastoma. A single STAT3 recruitment site (Tyr-721) in the cytoplasmic domain of IL-31Ralpha exerts a dominant function in the entire receptor complex and is critical for gene induction, morphological changes, and growth inhibition. The data suggest that inflammatory and immune reactions involving activated T-cells regulate functions of epithelial cells by IL-6 cytokines through receptor-defined signaling reactions.
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Affiliation(s)
- Souvik Chattopadhyay
- Department of Molecular and Cellular Biology and Cancer Genetics, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
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Loewen GM, Tracy E, Blanchard F, Tan D, Yu J, Raza S, Matsui SI, Baumann H. Transformation of human bronchial epithelial cells alters responsiveness to inflammatory cytokines. BMC Cancer 2005; 5:145. [PMID: 16271139 PMCID: PMC1289280 DOI: 10.1186/1471-2407-5-145] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2005] [Accepted: 11/04/2005] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Inflammation is commonly associated with lung tumors. Since inflammatory mediators, including members of the interleukin-6 (IL-6) cytokine family, suppress proliferation of normal epithelial cells, we hypothesized that epithelial cells must develop mechanisms to evade this inhibition during the tumorigenesis. This study compared the cytokine responses of normal epithelial cells to that of premalignant cells. METHODS Short-term primary cultures of epithelial cells were established from bronchial brushings. Paired sets of brushings were obtained from areas of normal bronchial epithelium and from areas of metaplastic or dysplastic epithelium, or areas of frank endobronchial carcinoma. In 43 paired cultures, the signalling through the signal transducer and activator of transcription (STAT) and extracellular regulated kinase (ERK) pathways and growth regulation by IL-6, leukemia inhibitory factor (LIF), oncostatin M (OSM), interferon-gamma (IFNgamma) or epidermal growth factor (EGF) were determined. Inducible expression and function of the leukemia inhibitory factor receptor was assessed by treatment with the histone deacetylase inhibitor depsipeptide. RESULTS Normal epithelial cells respond strongly to OSM, IFNgamma and EGF, and respond moderately to IL-6, and do not exhibit a detectable response to LIF. In preneoplastic cells, the aberrant signaling that was detected most frequently was an elevated activation of ERK, a reduced or increased IL-6 and EGF response, and an increased LIF response. Some of these changes in preneoplastic cell signaling approach those observed in established lung cancer cell lines. Epigenetic control of LIF receptor expression by histone acetylation can account for the gain of LIF responsiveness. OSM and macrophage-derived cytokines suppressed proliferation of normal epithelial cells, but reduced inhibition or even stimulated proliferation was noted for preneoplastic cells. These alterations likely contribute to the supporting effects that inflammation has on lung tumor progression. CONCLUSION This study indicates that during the earliest stage of premalignant transformation, a modified response to cytokines and EGF is evident. Some of the altered cytokine responses in primary premalignant cells are comparable to those seen in established lung cancer cell lines.
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Affiliation(s)
- Gregory M Loewen
- Departments of Medicine, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Erin Tracy
- Departments of Molecular and Cell Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Frédéric Blanchard
- Departments of Molecular and Cell Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Dongfeng Tan
- Departments of Pathology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Jihnhee Yu
- Departments of Biostatistics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Sameera Raza
- Departments of Medicine, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Sei-Ichi Matsui
- Departments of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Heinz Baumann
- Departments of Molecular and Cell Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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Soond SM, Everson B, Riches DWH, Murphy G. ERK-mediated phosphorylation of Thr735 in TNFalpha-converting enzyme and its potential role in TACE protein trafficking. J Cell Sci 2005; 118:2371-80. [PMID: 15923650 DOI: 10.1242/jcs.02357] [Citation(s) in RCA: 197] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Tumor necrosis factor alpha-converting enzyme (TACE/ADAM17) has been implicated in the inducible shedding of numerous cell surface proteins. In light of this, the regulation of TACE catalytic activation and protein maturation has recently received considerable interest in the context of extracellular signal-regulated kinase activation and the subsequent phosphorylation of TACE at residue Thr735. In this study, we analysed the subcellular localisation of TACE derivatives using laser-scanning confocal microscopy and cell surface biotinylation. Whereas WT.TACE- and T735A.TACE-enhanced green fluorescent protein (-eGFP) fusion derivatives of TACE were both found to localise with the endoplasmic reticulum, a phosphomimicking form of TACE (T735E.TACE-eGFP) was found to colocalise predominantly with components of the protein secretory pathway (COPII vesicles and trans-Golgi network). Additionally, upon analysis of biotinylated ectopic TACE, we observed that inducible trafficking of TACE to the cell surface was dependent upon extracellular signal-regulated kinase activation and phosphorylation of Thr735. We conclude from our observations that phosphorylation of TACE at Thr735 highlights a key step in inducible TACE protein trafficking and maturation.
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Affiliation(s)
- Surinder M Soond
- University of Cambridge, Department of Oncology, Cambridge Institute of Medical Research, Hills Road, Cambridge, CB2 2XY, UK.
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Malaval L, Liu F, Vernallis AB, Aubin JE. GP130/OSMR is the only LIF/IL-6 family receptor complex to promote osteoblast differentiation of calvaria progenitors. J Cell Physiol 2005; 204:585-93. [PMID: 15751050 DOI: 10.1002/jcp.20312] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Leukemia inhibitory factor (LIF) and its receptor (LIFR) are "twins" of Oncostatin M (OSM) and OSMR, respectively, likely having arisen through gene duplications. We compared their effects in a bone nodule-forming model of in vitro osteogenesis, rat calvaria (RC) cell cultures. Using a dominant-negative LIF mutant (hLIF-05), we showed that in RC cell cultures mouse OSM (mOSM) activates exclusively glycoprotein 130 (gp130)/OSMR. In treatments starting at early nodule formation stage, LIF, mOSM, IL-11, and IL-6 + sIL-6R inhibit bone nodule formation, that is, osteoprogenitor differentiation. Treatment with mOSM, and no other cytokine of the family, in early cultures (day 1-3 or 1-4) increases bone colony numbers. hLIF-05 also dose dependently stimulates bone nodule formation, confirming the inhibitory action of gp130/LIFR on osteogenesis. In pulse treatments at successive stages of bone nodule formation and maturation, LIF blocks osteocalcin (OCN) expression by differentiated osteoblasts, but has no effect on bone sialoprotein (BSP) expression. Mouse OSM inhibits OCN and BSP expression in preconfluent cultures with no or progressively reduced effects at later stages, reflecting the disruption of early nodules, possibly due to the strong apoptotic action of mOSM in RC cell cultures. In summary, LIFR and OSMR display differential effects on differentiation and phenotypic expression of osteogenic cells, most likely through different signal transduction pathways. In particular, gp130/OSMR is the only receptor complex of the family to stimulate osteoprogenitor differentiation in the RC cell culture model.
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Zvonic S, Baugh JE, Arbour-Reily P, Mynatt RL, Stephens JM. Cross-talk among gp130 cytokines in adipocytes. J Biol Chem 2005; 280:33856-63. [PMID: 16096272 DOI: 10.1074/jbc.m508020200] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The interleukin-6 (IL-6) family of cytokines is a family of structurally and functionally related proteins, including IL-6, IL-11, leukemia inhibitory factor (LIF), oncostatin M (OSM), ciliary neurotrophic factor (CNTF), and cardiotrophin-1 (CT-1). These proteins are also known as gp130 cytokines because they all share gp130 as a common transducer protein within their functional receptor complexes. Several of these cytokines (LIF, OSM, CNTF, and CT-1) also utilize the LIF receptor (LIFR) as a component of their receptor complex. We have shown that all of these cytokines are capable of activating both the JAK/STAT and p42/44 mitogen-activated protein kinase signaling pathways in 3T3-L1 adipocytes. By performing a variety of preincubation studies and examining the ability of these cytokines to activate STATs, ERKs, and induce transcription of SOCS-3 mRNA, we have also examined the ability of gp130 cytokines to modulate the action of their family members. Our results indicate that a subset of gp130 cytokines, in particular CT-1, LIF, and OSM, has the ability to impair subsequent signaling activity initiated by gp130 cytokines. However, IL-6 and CNTF do not exhibit this cross-talk ability. Moreover, our results indicate that the cross-talk among gp130 cytokines is mediated by the ability of these cytokines to induce ligand-dependent degradation of the LIFR, in a proteasome-independent manner, which coincides with decreased levels of LIFR at the plasma membrane. In summary, our results demonstrate that an inhibitory cross-talk among specific gp130 cytokines in 3T3-L1 adipocytes occurs as a result of specific degradation of LIFR via a lysosome-mediated pathway.
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Affiliation(s)
- Sanjin Zvonic
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 70803, USA
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Dozio E, Watanobe H, Ruscica M, Maggi R, Motta M, Magni P. Expression of functional ciliary neurotrophic factor receptors in immortalized gonadotrophin-releasing hormone-secreting neurones. J Neuroendocrinol 2005; 17:286-91. [PMID: 15869563 DOI: 10.1111/j.1365-2826.2005.01309.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ciliary neurotrophic factor (CNTF), a cytokine of the interleukin-6 superfamily, is known to exert pleiotropic actions, including regulation of food intake and permissive effects on reproduction, by facilitating the release of gonadotrophin-releasing hormone (GnRH) and gonadotrophins. CNTF activates membrane receptors (CNTF-Rs) composed of one ligand-specific binding subunit, defined CNTFR alpha, and two signal transducing subunits, termed leukaemia inhibitory factor receptor (LIFR) and gp130. However, it is not clear whether the effects of CNTF on GnRH release result from either a direct or an indirect action on GnRH-secreting hypothalamic neurones, or from a combination of these events. The hypothesis of a direct effect of CNTF was thus tested using the GT1-7 GnRH-secreting cell line. CNTF-R expression and CNTF-induced modulation of the Janus kinase (JAK2)-signal transducer and activator of transcription 3 (STAT3) pathway and of GnRH release were evaluated. GT1-7 cells were found to express CNTFR alpha, LIFR and gp130 genes, as shown by reverse transcription-polymerase chain reaction analysis, and the corresponding proteins, analysed by immunofluorescence and western blot. CNTFR alpha, LIFR and gp130 immunoreactive bands had an approximate size of 50, 190 and 130 kDa, respectively. Treatment of GT1-7 cells with 10(-12) M CNTF for 15-60 min resulted in a marked and transient increase of STAT3 phosphorylation via activation of JAK2. A 30-min exposure of GT1-7 cells to different CNTF concentrations increased the accumulation of GnRH into the culture medium, with a maximal effect at 10(-11) M. In conclusion, the present results provide new information about the regulation of the reproductive axis by CNTF, and suggest that it might operate at the hypothalamic level by directly influencing the activity of GnRH-secreting neurones, in addition to the possible indirect effects via interneurones proposed by previous studies.
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Affiliation(s)
- E Dozio
- Department of Endocrinology, Centre of Excellence on Neurodegenerative Diseases, University of Milan, Milan, Italy
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Liu H, Liu S, Tang S, Ji K, Wang F, Hu S. Molecular analysis of signaling events mediated by the cytoplasmic domain of leukemia inhibitory factor receptor alpha subunit. Mol Cell Biochem 2004; 258:15-23. [PMID: 15030166 DOI: 10.1023/b:mcbi.0000012829.10405.e1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A chimeric receptor (130/190) containing the cytoplasmic region of leukemia inhibitory factor receptor alpha subunit (LIFRalpha, or gp190) and the extracellular transmembrane region of gp130 was generated. Expressed of the 130/190 chimera in HL-60 cells to induced the homodimerization of the cytoplasmic domains (190cyt-190cyt) with whole LIFRalpha subunit on HL-60 cells in response to LIF. Expression and activation of the signal transducer and activator of transcription factor-3 (Stat3) and inhibition of leukemia cell proliferation were evaluated in cells transfected with this chimeric molecule. Increased tyrosyl phosphorylation of Stat3 at Tyr705 was detected after 10 min LIF treatment in cells transfected with either the 130/190 or the wild type receptor. Cell proliferation was decreased upon LIF treatment in both cell types. However, expression of the C-terminal region of the cytoplasmic region of LIFRalpha subunit (190CT) in HL-60 cells resulted in lower levels of Stat3 phosphorylation induction by LIF and cell proliferation was unaffected. Immunohistochemical staining indicated an inverse correlation between Cdc25B expression and the levels of phospho-Stat3 in 190CT and 130/190 cells. Expression of CD15, a cell differentiation marker, was lower in 190CT than in 130/190 cells. Together, these results suggest that homodimerization of the 190 cytoplasmic region promotes the Tyr 705 phosphorylation, which correlates with the inhibition of proliferation and stimulation of differentiation in HL-60 cells. Our results also suggest a signal link between Stat3 and Cdc25B.
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Affiliation(s)
- Houqi Liu
- Department of Histology and Embryology, Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, China.
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McKenzie RC, Szepietowski J. Cutaneous leukemia inhibitory factor and its potential role in the development of skin tumors. Dermatol Surg 2004; 30:279-90. [PMID: 14871222 DOI: 10.1111/j.1524-4725.2004.30087.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Leukemia inhibitory factor (LIF) is a polyfunctional cytokine with a variety and a diverse range of biological activities. However, this is a reflection of the fact that the cytokine is expressed in many different tissues, has a wide target cell range, and fulfills different functions in different tissues. The purpose of this article is to examine what is known about LIF expression in the skin and to consider whether LIF plays a role in inflammatory and hyperplastic events in the skin. LIF is strongly expressed in skin tumors, and recent studies indicate that it may affect tumor growth by several different mechanisms. The biological activities of LIF relevant to carcinogenesis, its expression, and signal transduction by the LIF receptor are described. Expression of LIF in normal skin by skin tumors and its induction by ultraviolet radiation and proinflammatory stimuli are discussed, as are possible interactions between LIF, mast cells, and tumor growth. We consider what role LIF and other members of the hemopoietin family of cytokines play in healthy and diseased skin and whether LIF could play a role in hyperplastic skin disorders. LIF appears to be an important cytokine for normal keratinocyte growth and wound healing and may be involved in regulating the proliferation of skin tumors. Accordingly, LIF may be a useful target for anticancer therapy and as a growth factor for normal skin during reconstructive surgery.
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Affiliation(s)
- Roddie C McKenzie
- Epidermal Inflammation and Protection Group, Laboratory for Clinical and Molecular Virology, Royal (Dick) Veterinary College, University of Edinburgh, Edinburgh, Scotland, United Kingdom.
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Prudhomme W, Daley GQ, Zandstra P, Lauffenburger DA. Multivariate proteomic analysis of murine embryonic stem cell self-renewal versus differentiation signaling. Proc Natl Acad Sci U S A 2004; 101:2900-5. [PMID: 14978270 PMCID: PMC365717 DOI: 10.1073/pnas.0308768101] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2003] [Indexed: 12/12/2022] Open
Abstract
A number of extracellular stimuli, including soluble cytokines and insoluble matrix factors, are known to influence murine embryonic stem cell self-renewal and differentiation behavioral responses via intracellular signaling pathways, but their net effects in combination are difficult to understand. To gain insight concerning key intracellular signals governing these behavioral responses, we employ a multivariate systems analysis of proteomic data generated from combinatorial stimulation of mouse embryonic stem cells by fibronectin, laminin, leukemia-inhibitory factor, and fibroblast growth factor 4. Phosphorylation states of 31 intracellular signaling network components were obtained across 16 different stimulus conditions at three time points by quantitative Western blotting, and partial-least-squares modeling was used to determine which components were most strongly correlated with cell proliferation and differentiation rate constants obtained from flow cytometry measurements of Oct-4 expression levels. This data-driven, multivariate (16 conditions x 31 components x 3 time points = approximately 1,500 values) proteomic approach identified a set of signaling network components most critically associated (positively or negatively) with differentiation (Stat3, Raf1, MEK, and ERK), proliferation of undifferentiated cells (MEK and ERK), and proliferation of differentiated cells (PKB alpha, Stat3, Src, and PKC epsilon). These predictions were found to be consistent with previous in vivo literature, along with direct in vitro test here by a peptide inhibitor of PKC epsilon. Our results demonstrate how a computational systems biology approach can elucidate key sets of intracellular signaling protein activities that combine to govern cell phenotypic responses to extracellular cues.
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Affiliation(s)
- Wendy Prudhomme
- Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Segrave AM, Mager DE, Charman SA, Edwards GA, Porter CJH. Pharmacokinetics of Recombinant Human Leukemia Inhibitory Factor in Sheep. J Pharmacol Exp Ther 2004; 309:1085-92. [PMID: 14872093 DOI: 10.1124/jpet.103.063289] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The pharmacokinetics of recombinant human leukemia inhibitory factor (rhLIF) were investigated following i.v. and s.c. administration of a wide range of dose levels. Parallel studies were conducted where single i.v. bolus doses of 12.5, 25, 100, 250, 500, or 750 microg/kg rhLIF (n = 2) or s.c. doses of 10, 20, or 50 microg/kg rhLIF (n = 4) were administered to sheep. Blood samples were collected for up to 24 h postdosing, and the plasma concentrations of rhLIF were analyzed by enzyme-linked immunosorbent assay. Noncompartmental analysis demonstrated an increase in the terminal elimination half-life (from 0.27 to 2.29 h) and a decrease in systemic clearance (from 5.18 to 1.09 ml/min/kg) with increasing i.v. doses of rhLIF, suggesting nonlinear pharmacokinetic behavior. A greater than proportional increase in the area under the plasma concentration-time curve with dose also indicated significantly nonlinear pharmacokinetics after s.c. administration. A mechanistic compartmental model was developed to characterize the pharmacokinetics of rhLIF. The key feature of the model accounting for the nonlinear pharmacokinetic behavior of rhLIF was high-affinity, saturable receptor binding and subsequent cellular internalization and degradation. The apparent total density of LIF cell surface receptors and receptor turnover dynamics were included in the model, along with nonspecific binding and linear elimination from the systemic circulation. The absorption of rhLIF from the s.c. injection site into the systemic circulation was characterized by a first-order absorption process via a delay compartment. The proposed model satisfactorily captured the complex pharmacokinetic profiles of rhLIF following both i.v. and s.c. administration.
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Affiliation(s)
- Alicia M Segrave
- Department of Pharmaceutics, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
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Tighe AP, Gudas LJ. Retinoic acid inhibits leukemia inhibitory factor signaling pathways in mouse embryonic stem cells. J Cell Physiol 2004; 198:223-9. [PMID: 14603524 DOI: 10.1002/jcp.10424] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Retinoic acid (RA) induces the differentiation of murine embryonic stem (ES) cells to cell types resembling those found in the early embryo. When cultured in the presence of leukemia inhibitory factor (LIF), ES cells are maintained in an undifferentiated (self-renewing) state. Addition of RA to the culture media overrides the self-renewing effects of LIF to induce ES cell differentiation. Therefore, we hypothesized that RA-induced differentiation of ES cells may be accomplished by antagonism of LIF-induced signaling pathways. We demonstrate that RA-induced differentiation of CCE ES cells is associated with (1) downregulation of the LIF receptor (LIFR); (2) decreased tyrosine phosphorylation of signal transducer and activator of transcription 3 protein (Stat3); and (3) increased activation of extracellular regulated kinase (Erk1/2). We conclude that RA induces CCE ES cell differentiation in the presence of LIF, in part, by disrupting signaling between the LIFR/gp130 receptor and nuclear targets that are required to prevent ES cell differentiation. Our data indicate that RA-induced inhibition of LIF signaling does not involve Erk1/2-dependent actions.
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Affiliation(s)
- Ann P Tighe
- Department of Pharmacology, Weill Medical College of Cornell University, New York, New York 10021, USA
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44
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Cutaneous Leukemia Inhibitory Factor and Its Potential Role in the Development of Skin Tumors. Dermatol Surg 2004. [DOI: 10.1097/00042728-200402002-00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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45
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Duplomb L, Chaigne-Delalande B, Vusio P, Raher S, Jacques Y, Godard A, Blanchard F. Soluble mannose 6-phosphate/insulin-like growth factor II (IGF-II) receptor inhibits interleukin-6-type cytokine-dependent proliferation by neutralization of IGF-II. Endocrinology 2003; 144:5381-9. [PMID: 12959977 DOI: 10.1210/en.2003-0607] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The calcium-independent mannose 6-phosphate receptor (CIMPR) is a receptor for multiple ligands, including leukemia inhibitory factor (LIF), an IL-6 type cytokine, and IGF-II. CIMPR targets newly synthesized ligands to lysosomes and induces internalization/degradation of secreted ligands. A natural soluble form of CIMPR (sCIMPR) neutralizes IGF-II mitogenic potency on hepatocytes and fibroblasts. Herein we show that sCIMPR also inhibits LIF-driven proliferation of myeloid and lymphoid cell lines. Similar inhibition was observed with IL-6 and IL-11, two other IL-6-type cytokines that do not interact with CIMPR. Neutralizing anti-IGF-II antibodies inhibited IL-6-, IL-11-, and LIF-driven cell proliferation to the same extent as sCIMPR, suggesting that neutralization of serum IGF-II by sCIMPR plays a major role in IL-6-type cytokine-dependent cell proliferation. Confirming this idea, ERK1/2 and AKT/protein kinase B, the kinases necessary for cell proliferation and survival, were activated by IGF-II alone or by the association of IL-6-type cytokines and IGF-II. IL-6-type cytokines alone (up to 10 ng/ml) did not activate ERK1/2 or AKT, but did activate STAT3 (signal transducer and activator of transcription 3), a transcription factor necessary for the G1 to S phase cell cycle transition. Activation of ERK1/2 and AKT by IGF-II thus appears essential to sustain cellular expansion driven by IL-6-type cytokines.
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Affiliation(s)
- Laurence Duplomb
- Group of Recherche Cytokines/Récepteurs/Transduction, Institut National de la Santé et de la Recherche Médicale, Unité 463, Nantes Cedex 01, France
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Blanchard F, Tracy E, Smith J, Chattopadhyay S, Wang Y, Held WA, Baumann H. DNA methylation controls the responsiveness of hepatoma cells to leukemia inhibitory factor. Hepatology 2003; 38:1516-28. [PMID: 14647063 DOI: 10.1016/j.hep.2003.09.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The related members of the interleukin 6 (IL-6) family of cytokines, IL-6, leukemia inhibitory factor (LIF), and oncostatin M, act as major inflammatory mediators and induce the hepatic acute phase reaction. Normal parenchymal liver cells express the receptors for these cytokines, and these receptors activate, to a comparable level, the intracellular signaling through signal transducer and activator of transcription (STAT) proteins and extracellular-regulated kinase (ERK). In contrast, hepatoma cell lines show attenuated responsiveness to some of these cytokines that is correlated with lower expression of the corresponding ligand-binding receptor subunits. This study tests the hypothesis that the reduced expression of LIF receptor (LIFR) observed in hepatoma cells is mediated by altered DNA methylation. H-35 rat hepatoma cells that have a greatly reduced LIF responsiveness were treated with 5-aza-2'-deoxycytidine, an inhibitor of DNA methyltransferase. Surviving and proliferating cells showed reestablished expression of LIFR protein and function. Restriction landmark genomic scanning (RLGS) demonstrated genome-wide drug-induced alterations in DNA methylation status, with striking similarities in the demethylation pattern among independently derived clonal lines. Upon extended growth in the absence of 5-aza-2'-deoxycytidine, the cells exhibit partial reversion to pretreatment patterns. Demethylation and remethylation of the CpG island within the LIFR promoter that is active in normal liver cells correlate with increased and decreased usage of this promoter in H-35 cells. In conclusion, these results indicate that transformed liver cells frequently undergo epigenetic alterations that suppress LIFR gene expression and modify the responsiveness to this IL-6 type cytokine.
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Affiliation(s)
- Frédéric Blanchard
- Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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Abstract
The IL (interleukin)-6-type cytokines IL-6, IL-11, LIF (leukaemia inhibitory factor), OSM (oncostatin M), ciliary neurotrophic factor, cardiotrophin-1 and cardiotrophin-like cytokine are an important family of mediators involved in the regulation of the acute-phase response to injury and infection. Besides their functions in inflammation and the immune response, these cytokines play also a crucial role in haematopoiesis, liver and neuronal regeneration, embryonal development and fertility. Dysregulation of IL-6-type cytokine signalling contributes to the onset and maintenance of several diseases, such as rheumatoid arthritis, inflammatory bowel disease, osteoporosis, multiple sclerosis and various types of cancer (e.g. multiple myeloma and prostate cancer). IL-6-type cytokines exert their action via the signal transducers gp (glycoprotein) 130, LIF receptor and OSM receptor leading to the activation of the JAK/STAT (Janus kinase/signal transducer and activator of transcription) and MAPK (mitogen-activated protein kinase) cascades. This review focuses on recent progress in the understanding of the molecular mechanisms of IL-6-type cytokine signal transduction. Emphasis is put on the termination and modulation of the JAK/STAT signalling pathway mediated by tyrosine phosphatases, the SOCS (suppressor of cytokine signalling) feedback inhibitors and PIAS (protein inhibitor of activated STAT) proteins. Also the cross-talk between the JAK/STAT pathway with other signalling cascades is discussed.
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Heinrich PC, Behrmann I, Haan S, Hermanns HM, Müller-Newen G, Schaper F. Principles of interleukin (IL)-6-type cytokine signalling and its regulation. Biochem J 2003; 374:1-20. [PMID: 12773095 PMCID: PMC1223585 DOI: 10.1042/bj20030407] [Citation(s) in RCA: 2300] [Impact Index Per Article: 109.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2003] [Revised: 04/30/2003] [Accepted: 05/29/2003] [Indexed: 12/11/2022]
Abstract
The IL (interleukin)-6-type cytokines IL-6, IL-11, LIF (leukaemia inhibitory factor), OSM (oncostatin M), ciliary neurotrophic factor, cardiotrophin-1 and cardiotrophin-like cytokine are an important family of mediators involved in the regulation of the acute-phase response to injury and infection. Besides their functions in inflammation and the immune response, these cytokines play also a crucial role in haematopoiesis, liver and neuronal regeneration, embryonal development and fertility. Dysregulation of IL-6-type cytokine signalling contributes to the onset and maintenance of several diseases, such as rheumatoid arthritis, inflammatory bowel disease, osteoporosis, multiple sclerosis and various types of cancer (e.g. multiple myeloma and prostate cancer). IL-6-type cytokines exert their action via the signal transducers gp (glycoprotein) 130, LIF receptor and OSM receptor leading to the activation of the JAK/STAT (Janus kinase/signal transducer and activator of transcription) and MAPK (mitogen-activated protein kinase) cascades. This review focuses on recent progress in the understanding of the molecular mechanisms of IL-6-type cytokine signal transduction. Emphasis is put on the termination and modulation of the JAK/STAT signalling pathway mediated by tyrosine phosphatases, the SOCS (suppressor of cytokine signalling) feedback inhibitors and PIAS (protein inhibitor of activated STAT) proteins. Also the cross-talk between the JAK/STAT pathway with other signalling cascades is discussed.
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Affiliation(s)
- Peter C Heinrich
- Institut für Biochemie, RWTH Aachen, Universitätsklinikum, Pauwelsstrasse 30, D-52074 Aachen, Germany.
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Laszlo GS, Nathanson NM. Src family kinase-independent signal transduction and gene induction by leukemia inhibitory factor. J Biol Chem 2003; 278:27750-7. [PMID: 12764151 DOI: 10.1074/jbc.m303670200] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Members of the interleukin-6 (IL-6) family of cytokines exert their biological effects via binding to their cognate ligand-binding receptor subunit on a target cell. The subsequent recruitment of the common signal transducer glycoprotein 130 and activation of the JAK/STAT and SHP-2/Ras/mitogen-activated protein kinase (MAPK) pathways are responsible for the majority of cellular responses elicited by IL-6 cytokines. Several types of experiments suggest that the Src family of kinases (SFK) also participates in IL-6 family cytokine-mediated signaling events. SYF cells, which lack expression of SFKs Src, Yes, and Fyn, were used to determine the role of SFKs in IL-6 family cytokine signaling and gene induction. SYF and wild type (WT) control fibroblasts displayed similar activation of signaling intermediates following stimulation with leukemia inhibitory factor (LIF). LIF-stimulated tyrosine phosphorylation of SHP-2 and subsequent activation of MAPK in SYF cells were identical to that seen in LIF-stimulated WT cells. Both LIF-stimulated tyrosine phosphorylation of STAT1 and STAT3, as well as LIF-stimulated DNA binding activity of STAT-containing nuclear complexes were indistinguishable when compared in SYF and WT cells. In addition, the phosphatidylinositol 3-kinase-sensitive Akt kinase and p38 MAPK were activated by LIF in both SYF and WT cells. Furthermore, LIF-stimulated expression of c-fos, egr-1, and suppressor of cytokine signaling-3 was retained in SYF cells. The IL-6 family cytokine oncostatin M was also capable of activating MAPK, STAT3, STAT1, Akt, and p38 in both WT and SYF cells. These results demonstrate that IL-6 family cytokines can activate a full repertoire of signaling pathways and induce gene expression independent of SFKs.
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Affiliation(s)
- George S Laszlo
- Department of Pharmacology, University of Washington, Seattle, Washington 98195, USA
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50
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Bitard J, Daburon S, Duplomb L, Blanchard F, Vuisio P, Jacques Y, Godard A, Heath JK, Moreau JF, Taupin JL. Mutations in the immunoglobulin-like domain of gp190, the leukemia inhibitory factor (LIF) receptor, increase or decrease its affinity for LIF. J Biol Chem 2003; 278:16253-61. [PMID: 12601009 DOI: 10.1074/jbc.m207193200] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The leukemia inhibitory factor (LIF) receptor comprises the low affinity binding chain gp190 and the high affinity converter gp130. The ectodomain of gp190 is among the most complex in the hematopoietin receptor family, because it contains two typical cytokine receptor homology domains separated by an immunoglobulin-like (Ig-like) domain. Human and murine gp190 proteins share 76% homology, but murine gp190 binds human LIF with a much higher affinity, a property attributed to the Ig-like domain. Using alanine-scanning mutagenesis of the Ig-like domain, we mapped a LIF binding site at its carboxyl terminus, mainly involving residue Phe-328. Mutation of selected residues into their orthologs in the murine receptor (Q251E and N321D) significantly increased the affinity for human LIF. Interestingly, these residues, although localized at both the amino and carboxyl terminus, make a spatially unique LIF binding site in a structural model of the Ig-like module. These results demonstrate definitively the role of the Ig-like domain in LIF binding and the potential to modulate receptor affinity in this family with very limited amino acid changes.
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Affiliation(s)
- Juliette Bitard
- CNRS UMR 5540, Université de Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux, France
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