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Zhang H, Liu R, Jing Z, Li C, Fan W, Li H, Li H, Ren J, Cui S, Zhao W, Yu L, Bai Y, Liu S, Fang C, Yang W, Wei Y, Li L, Peng S. LRRC8A as a central mediator promotes colon cancer metastasis by regulating PIP5K1B/PIP2 pathway. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167066. [PMID: 38350542 DOI: 10.1016/j.bbadis.2024.167066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
Colorectal cancer (CRC) has been the third most common malignancy and the second cause of cancer-related mortality. As the core of volume-sensitive chloride currents, leucine-rich repeat-containing 8A (LRRC8A) contributes to tumor progression but is not consistent, especially for whom the roles in colon carcinoma metastasis were not fully elucidated. Herein, LRRC8A proteins were found highly expressed in hematogenous metastasis from human colorectal cancer samples. The oxaliplatin-resistant HCT116 cells highly expressed LRRC8A, which was related to impaired proliferation and enhanced migration. The over-expressed LRRC8A slowed proliferation and increased migration ex vivo and in vivo. The elevated LRRC8A upregulated the focal adhesion, MAPK, AMPK, and chemokine signaling pathways via phosphorylation and dephosphorylation. Inhibition of LRRC8A impeded the TNF-α signaling cascade and TNF-α-induced migration. LRRC8A binding to PIP5K1B regulated the PIP2 formation, providing a platform for LRRC8A to mediate cell signaling transduction. Importantly, LRRC8A self-regulated its transcription via NF-κB1 and NF-κB2 pathways and the upregulation of NIK/NF-κB2/LRRC8A transcriptional axis was unfavorable for colon cancer patients. Collectively, our findings reveal that LRRC8A is a central mediator in mediating multiple signaling pathways to promote metastasis and targeting LRRC8A proteins could become a potential clinical biomarker-driven treatment strategy for colon cancer patients.
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Affiliation(s)
- Haifeng Zhang
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China.
| | - Rong Liu
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Zhenghui Jing
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Chunying Li
- School of Nursing, Li Shui University, Lishui, Zhejiang 323020, China
| | - Wentao Fan
- Guangzhou Huayin Medical Laboratory Center. Ltd, Guangzhou, Guangdong 510663, China
| | - Houli Li
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Hongbing Li
- Department of Internal Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Jie Ren
- Department of Internal Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Shiyu Cui
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Wenbao Zhao
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Lei Yu
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yuhui Bai
- Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, Guangdong 510500, China
| | - Shujing Liu
- Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, Guangdong 510500, China
| | - Chunlu Fang
- Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, Guangdong 510500, China
| | - Wenqi Yang
- Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, Guangdong 510500, China
| | - Yuan Wei
- Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, Guangdong 510500, China
| | - Liangming Li
- Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, Guangdong 510500, China; School of Sport and Health Sciences, Guangzhou Sport University, Guangzhou, Guangdong 510500, China
| | - Shuang Peng
- Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, Guangdong 510500, China; School of Sport and Health Sciences, Guangzhou Sport University, Guangzhou, Guangdong 510500, China.
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2
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Kamińska J, Tylicka M, Sutkowska K, Gacuta KM, Sawicka MM, Kowalewska E, Ćwiklińska-Dworakowska M, Maciejczyk M, Łysoń T, Kornhuber J, Lewczuk P, Matowicka-Karna J, Koper-Lenkiewicz OM. The preliminary study suggests an association between NF-ĸB pathway activation and increased plasma 20S proteasome activity in intracranial aneurysm patients. Sci Rep 2024; 14:3941. [PMID: 38366068 PMCID: PMC10873410 DOI: 10.1038/s41598-024-54692-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/15/2024] [Indexed: 02/18/2024] Open
Abstract
The significant role of increased activation of 20S proteasomes in the development of abdominal aortic aneurysms has been well-established in a mouse model. The available literature lacks similar studies concerning brain aneurysms. The aim of the study was to verify the hypothesis that patients with unruptured intracranial aneurysms (UIA) have increased 20S proteasome ChT-L activity compared to the control group of individuals without vascular lesions in the brain. In the next step, the relationship between the activity of 20S proteasomes ChT-L and precursor proteins from the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) family, namely NF-κB1 (p105), NF-κB2 (p100), NF-κB p65, and the inflammatory chemokine MCP-1, was examined. Patients with UIA had significantly higher 20S ChT-L proteasome activity compared to the control group. Patients with multiple aneurysms had significantly higher 20S proteasome ChT-L activity compared to those with single aneurysms. In patients with UIA, the activity of the 20S proteasome ChT-L negatively correlated with the concentration of NF-κB1 (p105) and NF-κB p65 precursor proteins and positively correlated with the concentration of the cerebrospinal fluid chemokine MCP-1. Our results may suggest that increased 20S proteasome ChT-L activity in UIA patients modulates inflammation in the cerebral arterial vessel via the MCP-1 chemokine as a result of activation of the canonical NF-κB pathway.
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Affiliation(s)
- Joanna Kamińska
- Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, 15A Jerzego Waszyngtona St., 15-269, Białystok, Poland.
| | - Marzena Tylicka
- Department of Biophysics, Medical University of Bialystok, 2A Adama Mickiewicza St., 15-089, Białystok, Poland
| | - Kinga Sutkowska
- Department of Clinical Laboratory Diagnostics, Clinical Hospital of the Medical University of Bialystok, 15A Jerzego Waszyngtona St., 15-269, Białystok, Poland
| | - Karolina Marta Gacuta
- Department of Clinical Laboratory Diagnostics, Clinical Hospital of the Medical University of Bialystok, 15A Jerzego Waszyngtona St., 15-269, Białystok, Poland
| | - Magdalena Maria Sawicka
- Department of Analysis and Bioanalysis of Medicines, Medical University of Bialystok, 2D Mickiewicza St., 15-222, Białystok, Poland
| | - Ewa Kowalewska
- Department of Clinical Laboratory Diagnostics, Clinical Hospital of the Medical University of Bialystok, 15A Jerzego Waszyngtona St., 15-269, Białystok, Poland
| | - Magdalena Ćwiklińska-Dworakowska
- Department of Oncological Surgery and General Surgery, Independent Public Health Care Facility of the Ministry of the Interior and Administration in Bialystok named Marian Zyndram-Kościałkowski, 27 Fabryczna St., 15-471, Białystok, Poland
| | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology, and Ergonomics, Medical University of Białystok, 2C Mickiewicza St., 15-022, Białystok, Poland
| | - Tomasz Łysoń
- Department of Neurosurgery, Medical University of Bialystok/Clinical Hospital of the Medical University of Bialystok, 24A Marii Skłodowskiej-Curie St., 15-276, Białystok, Poland
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Piotr Lewczuk
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Department of Neurodegeneration Diagnostics, Medical University of Bialystok, 15A Jerzego Waszyngtona St., 15-269, Białystok, Poland
| | - Joanna Matowicka-Karna
- Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, 15A Jerzego Waszyngtona St., 15-269, Białystok, Poland
| | - Olga Martyna Koper-Lenkiewicz
- Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, 15A Jerzego Waszyngtona St., 15-269, Białystok, Poland.
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Fathi N, Mojtahedi H, Nasiri M, Abolhassani H, Yousefpour Marzbali M, Esmaeili M, Salami F, Biglari F, Rezaei N. How do nuclear factor kappa B (NF-κB)1 and NF-κB2 defects lead to the incidence of clinical and immunological manifestations of inborn errors of immunity? Expert Rev Clin Immunol 2023; 19:329-339. [PMID: 36706462 DOI: 10.1080/1744666x.2023.2174105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
INTRODUCTION Genetic defects affect the manner of the immune system's development, activation, and function. Nuclear factor-kappa B subunit 1 (NF-κB1) and NF-κB2 are involved in different biological processes, and deficiency in these transcription factors may reveal clinical and immunological difficulties. AREAS COVERED This review article gathers the most frequent clinical and immunological remarkable characteristics of NF-κB1 and NF-κB2 deficiencies. Afterward, an effort is made to describe the biological mechanism, which is likely to be the cause of these clinical and immunological abnormalities. EXPERT OPINION The present review article has explained the mechanism of contributions of the NF-κB1 and NF-κB2 deficiency in revealing immunodeficiency symptoms, specifically immunological and clinical manifestations. These mechanisms demonstrate the importance of NF-κB1 and NF-κB2 signaling pathways for B and T cell development, activation, antibody production, and immunotolerance. The manifestation of a mutation can range from no symptoms to severe complications in a family.
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Affiliation(s)
- Nazanin Fathi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Hanieh Mojtahedi
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Nasiri
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Abolhassani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Biosciences and Nutrition, Karolinska Institute, Stockholm, Sweden
| | - Mahsa Yousefpour Marzbali
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,International Network of Stem Cell (INSC), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Marzie Esmaeili
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Fereshte Salami
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Furozan Biglari
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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4
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Berestjuk I, Lecacheur M, Carminati A, Diazzi S, Rovera C, Prod'homme V, Ohanna M, Popovic A, Mallavialle A, Larbret F, Pisano S, Audebert S, Passeron T, Gaggioli C, Girard CA, Deckert M, Tartare-Deckert S. Targeting Discoidin Domain Receptors DDR1 and DDR2 overcomes matrix-mediated tumor cell adaptation and tolerance to BRAF-targeted therapy in melanoma. EMBO Mol Med 2021; 14:e11814. [PMID: 34957688 PMCID: PMC8819497 DOI: 10.15252/emmm.201911814] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 12/04/2022] Open
Abstract
Resistance to BRAF/MEK inhibitor therapy in BRAFV600‐mutated advanced melanoma remains a major obstacle that limits patient benefit. Microenvironment components including the extracellular matrix (ECM) can support tumor cell adaptation and tolerance to targeted therapy; however, the underlying mechanisms remain poorly understood. Here, we investigated the process of matrix‐mediated drug resistance (MMDR) in response to BRAFV600 pathway inhibition in melanoma. We demonstrate that physical and structural cues from fibroblast‐derived ECM abrogate anti‐proliferative responses to BRAF/MEK inhibition. MMDR is mediated by drug‐induced linear clustering of phosphorylated DDR1 and DDR2, two tyrosine kinase collagen receptors. Depletion and pharmacological targeting of DDR1 and DDR2 overcome ECM‐mediated resistance to BRAF‐targeted therapy. In xenografts, targeting DDR with imatinib enhances BRAF inhibitor efficacy, counteracts drug‐induced collagen remodeling, and delays tumor relapse. Mechanistically, DDR‐dependent MMDR fosters a targetable pro‐survival NIK/IKKα/NF‐κB2 pathway. These findings reveal a novel role for a collagen‐rich matrix and DDR in tumor cell adaptation and resistance. They also provide important insights into environment‐mediated drug resistance and a preclinical rationale for targeting DDR signaling in combination with targeted therapy in melanoma.
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Affiliation(s)
- Ilona Berestjuk
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Margaux Lecacheur
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Alexandrine Carminati
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Serena Diazzi
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Christopher Rovera
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Virginie Prod'homme
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Mickael Ohanna
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Ana Popovic
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Aude Mallavialle
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Frédéric Larbret
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Sabrina Pisano
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | - Stéphane Audebert
- Aix-Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Thierry Passeron
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Université Côte d'Azur, Centre Hospitalier Universitaire de Nice, Department of Dermatology, Nice, France
| | | | - Christophe A Girard
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Marcel Deckert
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
| | - Sophie Tartare-Deckert
- Université Côte d'Azur, INSERM, C3M, Nice, France.,Equipe labellisée Ligue Contre le Cancer, Team MicroCan, Nice, France
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5
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Abraham RS, Marshall JM, Kuehn HS, Rueda CM, Gibbs A, Guider W, Stewart C, Rosenzweig SD, Wang H, Jean S, Peeples M, King T, Hunt WG, Honegger JR, Ramilo O, Mustillo PJ, Mejias A, Ardura MI, Shimamura M. Severe SARS-CoV-2 disease in the context of a NF-κB2 loss-of-function pathogenic variant. J Allergy Clin Immunol 2021; 147:532-544.e1. [PMID: 33007327 PMCID: PMC7525247 DOI: 10.1016/j.jaci.2020.09.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/09/2020] [Accepted: 09/17/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel coronavirus that emerged recently and has created a global pandemic. Symptomatic SARS-CoV-2 infection, termed coronavirus disease 2019 (COVID-19), has been associated with a host of symptoms affecting numerous organ systems, including the lungs, cardiovascular system, kidney, central nervous system, gastrointestinal tract, and skin, among others. OBJECTIVE Although several risk factors have been identified as related to complications from and severity of COVID-19, much about the virus remains unknown. The host immune response appears to affect the outcome of disease. It is not surprising that patients with intrinsic or secondary immune compromise might be particularly susceptible to complications from SARS-CoV-2 infection. Pathogenic loss-of-function or gain-of-function heterozygous variants in nuclear factor-κB2 have been reported to be associated with either a combined immunodeficiency or common variable immunodeficiency phenotype. METHODS We evaluated the functional consequence and immunologic phenotype of a novel NFKB2 loss of function variant in a 17-year-old male patient and describe the clinical management of SARS-CoV-2 infection in this context. RESULTS This patient required a 2-week hospitalization for SARS-CoV-2 infection, including 7 days of mechanical ventilation. We used biologic therapies to avert potentially fatal acute respiratory distress syndrome and treat hyperinflammatory responses. The patient had an immunologic phenotype of B-cell dysregulation with decreased switched memory B cells. Despite the underlying immune dysfunction, he recovered from the infection with intense management. CONCLUSIONS This clinical case exemplifies some of the practical challenges in management of patients with SARS-CoV-2 infection, especially in the context of underlying immune dysregulation.
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Affiliation(s)
- Roshini S Abraham
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, Ohio.
| | - Joanna M Marshall
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Hye Sun Kuehn
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, Md
| | - Cesar M Rueda
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Amber Gibbs
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Will Guider
- Division of Critical Care Medicine, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio
| | - Claire Stewart
- Division of Critical Care Medicine, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio
| | - Sergio D Rosenzweig
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, Md
| | - Huanyu Wang
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Sophonie Jean
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Mark Peeples
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Center for Vaccines and Immunity, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio
| | - Tiffany King
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Center for Vaccines and Immunity, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio
| | - W Garrett Hunt
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, Ohio
| | - Jonathan R Honegger
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Center for Vaccines and Immunity, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio; Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, Ohio
| | - Octavio Ramilo
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Center for Vaccines and Immunity, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio; Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, Ohio
| | - Peter J Mustillo
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Division of Allergy and Immunology, Nationwide Children's Hospital, Columbus, Ohio
| | - Asuncion Mejias
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Center for Vaccines and Immunity, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio; Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, Ohio
| | - Monica I Ardura
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, Ohio
| | - Masako Shimamura
- Department of Pediatrics, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, Ohio; Center for Vaccines and Immunity, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio; Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, Ohio
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6
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Antonacopoulou A, Kottorou AE, Dimitrakopoulos FI, Marousi S, Kalofonou F, Koutras A, Makatsoris T, Tzelepi V, Kalofonos HP. NF-κB2 and RELB offer prognostic information in colorectal cancer and NFKB2 rs7897947 represents a genetic risk factor for disease development. Transl Oncol 2021; 14:100912. [PMID: 33074124 PMCID: PMC7568186 DOI: 10.1016/j.tranon.2020.100912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/16/2020] [Accepted: 10/06/2020] [Indexed: 10/25/2022] Open
Abstract
The Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) family of transcription factors plays an important role in immune responses and cancer development and progression. We have focused on NF-κB2 and RELB of the alternative pathway of NF-κB, which remains largely underexplored in colorectal cancer (CRC). We found that NF-κB2 and RELB protein levels were upregulated in tumour and surrounding stromal tissue compared to distant non-neoplastic tissue (NN) and associated stroma (p<0.001 in all associations). Moreover, low RELB protein expression was associated with decreased overall survival (p = 0.032). Lower RELB gene expression levels were observed in tumour compared to NN tissue (p = 0.003) and were associated with shorter time to progression (TTP) (p = 0.025). NF-κB2 gene expression levels were similar in tumour and NN tissue, but higher tumour levels were prognostic for improved survival (p = 0.038) and TTP (p<0.001). We also assessed the significance of two NF-κB2 genetic polymorphisms, rs12769316 and rs7897947. Both polymorphisms were associated with lymph node infiltration (p = 0.045 and p = 0.009, respectively). In addition, rs12769316 AA homozygotes relapsed less often compared to G allele carriers (p = 0.029). Moreover, rs7897947 allele frequencies differed significantly between CRC patients and healthy controls (p<0.001) and the minor allele (G) was associated with reduced risk for developing CRC (p<0.001, OR: 0.527, 95% CI: 0.387-0.717). In conclusion, the alternative NF-κB pathway appears deregulated in CRC. Moreover, NF-κB2 and RELB expression levels seem to be significant for the clinical outcome of CRC patients and rs7897947 appears to be a risk factor for CRC development.
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Affiliation(s)
- Anna Antonacopoulou
- Clinical and Molecular Oncology Laboratory, Division of Oncology, Department of Medicine, Medical School, University of Patras, Patras, Greece.
| | - Anastasia E Kottorou
- Clinical and Molecular Oncology Laboratory, Division of Oncology, Department of Medicine, Medical School, University of Patras, Patras, Greece
| | - Foteinos-Ioannis Dimitrakopoulos
- Clinical and Molecular Oncology Laboratory, Division of Oncology, Department of Medicine, Medical School, University of Patras, Patras, Greece
| | - Stella Marousi
- "G. Gennimatas" General Hospital of Athens, Neurology Department, Athens, Greece
| | | | - Angelos Koutras
- Clinical and Molecular Oncology Laboratory, Division of Oncology, Department of Medicine, Medical School, University of Patras, Patras, Greece
| | - Thomas Makatsoris
- Clinical and Molecular Oncology Laboratory, Division of Oncology, Department of Medicine, Medical School, University of Patras, Patras, Greece
| | - Vassiliki Tzelepi
- Department of Pathology, Medical School, University of Patras, Patras, Greece
| | - Haralabos P Kalofonos
- Clinical and Molecular Oncology Laboratory, Division of Oncology, Department of Medicine, Medical School, University of Patras, Patras, Greece.
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7
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Wang M, Li J, Zuo Z, Ren C, Tang T, Long C, Gong Y, Ye F, Wang Z, Huang J. Long non-coding RNA DIO3OS/let-7d/ NF-κB2 axis regulates cells proliferation and metastasis of thyroid cancer cells. J Cell Commun Signal 2020; 15:237-250. [PMID: 33058043 DOI: 10.1007/s12079-020-00589-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022] Open
Abstract
Due to the steadily rising morbidity and mortality, thyroid cancer remains the most commonly seen endocrine cancer. The present study attempted to investigate the mechanism from the perspective of long non-coding RNA (lncRNA) regulation. We identified 53 markedly increased lncRNAs in thyroid cancer samples according to TCGA data. Among them, high lncRNA DIO3OS expression was a risk factor for thyroid cancer patients' poorer overall survival. DIO3OS showed to be considerably increased within thyroid cancer tissue samples and cells. Knocking down DIO3OS within thyroid carcinoma cells suppressed cancer cell viability, the capacity of DNA synthesis, cell invasion, as well as cell migration; besides, proliferating markers, ki-67 and PCNA, were decreased by DIO3OS knockdown. Cancer bioinformatics analysis suggested that NF-κB2 might be related to DIO3OS function in thyroid cancer carcinogenesis. NF-κB2 was positively correlated with DIO3OS, and DIO3OS knockdown decreased NF-κB2 protein levels. Knocking down NF-κB2 within thyroid carcinoma cells suppressed cancer cell viability, the capacity of DNA synthesis, cell invasion, cell migration, and the protein levels of proliferating markers. Let-7d directly targeted DIO3OS and NF-κB2; DIO3OS knockdown upregulated let-7d expression. The overexpression of let-7d suppressed cancer cell viability, the capacity of DNA synthesis, cell invasion, cell migration, as well as the protein levels of proliferating markers. Let-7d inhibition remarkably attenuated the functions of DIO3OS knockdown in NF-κB2 expression and thyroid cancer cell phenotype. In conclusion, DIO3OS/let-7d/NF-κB2 axis regulates the viability, DNA synthesis capacity, invasion, and migration of thyroid cancer cells. The clinical application of this axis needs further in vivo and clinical investigation.
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Affiliation(s)
- Mingming Wang
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Jin Li
- Department of Anesthesiology, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Zhongkun Zuo
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Chutong Ren
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Tenglong Tang
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Chen Long
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Yi Gong
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Fei Ye
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Zhihong Wang
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China
| | - Jiangsheng Huang
- Center for Minimally Invasive Surgery, The Second Xiangya Hospital, Central South University, NO.139, Renmin Middle Road, Furong District, Changsha, Hunan, 410011, People's Republic of China.
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8
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Aird A, Lagos M, Vargas-Hernández A, Posey JE, Coban-Akdemir Z, Jhangiani S, Mace EM, Reyes A, King A, Cavagnaro F, Forbes LR, Chinn IK, Lupski JR, Orange JS, Poli MC. Novel Heterozygous Mutation in NFKB2 Is Associated With Early Onset CVID and a Functional Defect in NK Cells Complicated by Disseminated CMV Infection and Severe Nephrotic Syndrome. Front Pediatr 2019; 7:303. [PMID: 31417880 PMCID: PMC6682634 DOI: 10.3389/fped.2019.00303] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 07/08/2019] [Indexed: 12/17/2022] Open
Abstract
Nuclear factor kappa-B subunit 2 (NF-κB2/p100/p52), encoded by NFKB2 (MIM: 164012) belongs to the NF-κB family of transcription factors that play a critical role in inflammation, immunity, cell proliferation, differentiation and survival. Heterozygous C-terminal mutations in NFKB2 have been associated with early-onset common variable immunodeficiency (CVID), central adrenal insufficiency and ectodermal dysplasia. Only two previously reported cases have documented decreased natural killer (NK) cell cytotoxicity, and little is known about the role of NF-κB2 in NK cell maturation and function. Here we report a 13-year-old female that presented at 6 years of age with a history of early onset recurrent sinopulmonary infections, progressive hair loss, and hypogamaglobulinemia consistent with a clinical diagnosis of CVID. At 9 years of age she had cytomegalovirus (CMV) pneumonia that responded to ganciclovir treatment. Functional NK cell testing demonstrated decreased NK cell cytotoxicity despite normal NK cell numbers, consistent with a greater susceptibility to systemic CMV infection. Research exome sequencing (ES) was performed and revealed a novel de novo heterozygous nonsense mutation in NFKB2 (c.2611C>T, p.Gln871*) that was not carried by either of her parents. The variant was Sanger sequenced and confirmed to be de novo in the patient. At age 12, she presented with a reactivation of the systemic CMV infection that was associated with severe and progressive nephrotic syndrome with histologic evidence of pedicellar effacement and negative immunofluorescence. To our knowledge, this is the third NF-κB2 deficient patient in which an abnormal NK cell function has been observed, suggesting a role for non-canonical NF-κB2 signaling in NK cell cytotoxicity. NK cell function should be assessed in patients with mutations in the non-canonical NF-κB pathway to explore the risk for systemic viral infections that may lead to severe complications and impact patient survival. Similarly NF-κB2 should be considered in patients with combined immunodeficiency who have aberrant NK cell function. Further studies are needed to characterize the role of NF-κB2 in NK cell cytotoxic function.
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Affiliation(s)
- Alejandra Aird
- Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - Macarena Lagos
- Clínica Las Condes, Santiago, Chile.,Hospital Padre Hurtado, Santiago, Chile
| | - Alexander Vargas-Hernández
- Section of Immunology, Allergy and Rheumatology, Department of Pediatrics, Center for Human Immunobiology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Jennifer E Posey
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
| | - Zeynep Coban-Akdemir
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
| | - Shalini Jhangiani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States.,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, United States
| | - Emily M Mace
- Division of Immunogenetics, Department of Pediatrics, Morgan Stanley Children's Hospital of New York Presbyterian, Columbia University Irving Medical Center, New York, NY, United States
| | - Anaid Reyes
- Section of Immunology, Allergy and Rheumatology, Department of Pediatrics, Center for Human Immunobiology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Alejandra King
- Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - Felipe Cavagnaro
- Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - Lisa R Forbes
- Section of Immunology, Allergy and Rheumatology, Department of Pediatrics, Center for Human Immunobiology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Ivan K Chinn
- Section of Immunology, Allergy and Rheumatology, Department of Pediatrics, Center for Human Immunobiology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - James R Lupski
- Section of Immunology, Allergy and Rheumatology, Department of Pediatrics, Center for Human Immunobiology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States.,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, United States
| | - Jordan S Orange
- Division of Immunogenetics, Department of Pediatrics, Morgan Stanley Children's Hospital of New York Presbyterian, Columbia University Irving Medical Center, New York, NY, United States
| | - Maria Cecilia Poli
- Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo, Santiago, Chile.,Section of Immunology, Allergy and Rheumatology, Department of Pediatrics, Center for Human Immunobiology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
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9
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Liao Y, Wei J, Wang J, Shi X, Luo J, Song BL. The non-canonical NF-κB pathway promotes NPC2 expression and regulates intracellular cholesterol trafficking. Sci China Life Sci 2018; 61:1222-32. [PMID: 30091016 DOI: 10.1007/s11427-018-9339-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/14/2018] [Indexed: 02/06/2023]
Abstract
Niemann-Pick type C2 (NPC2) is a lysosome luminal protein that functions in concert with NPC1 to mediate egress of low-density lipoprotein-derived cholesterol from lysosome. The nuclear factor kappa B subunit 2 (NF-κB2) protein is a component of NF-κB transcription factor complex critically implicated in immune and inflammatory responses. Here, we report that NF-κB2 regulates intracellular cholesterol transport by controlling NPC2 expression. RNAi-mediated disruption of NF-κB2, as well as other signaling members of the non-canonical NF-κB pathway, caused intracellular cholesterol accumulation. Blockage of the non-canonical NF-κB pathway suppressed NPC2 expression, whereas Lymphotoxin β receptor (LTβR) activation or Baff receptor (BaffR) stimulation up-regulated the mRNA abundance and protein level of NPC2. Further, NF-κB2 activated NPC2 transcription through direct binding to its promoter region. We also observed cholesterol accumulation in NF-κB2-deficient zebrafish embryo and NF-κB2 mutant mice. Collectively, these data identify a regulatory role for the non-canonical NF-κB pathway in intracellular cholesterol trafficking and suggest a link between cholesterol transport and immune system.
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10
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Alam SK, Astone M, Liu P, Hall SR, Coyle AM, Dankert EN, Hoffman DK, Zhang W, Kuang R, Roden AC, Mansfield AS, Hoeppner LH. DARPP-32 and t-DARPP promote non-small cell lung cancer growth through regulation of IKKα-dependent cell migration. Commun Biol 2018; 1:43. [PMID: 29782621 PMCID: PMC5959014 DOI: 10.1038/s42003-018-0050-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related death worldwide. Here we demonstrate that elevated expression of dopamine and cyclic adenosine monophosphate-regulated phosphoprotein, Mr 32000 (DARPP-32) and its truncated splice variant t-DARPP promote lung tumor growth, while abrogation of DARPP-32 expression in human non-small cell lung cancer (NSCLC) cells reduces tumor growth in orthotopic mouse models. We observe a novel physical interaction between DARPP-32 and inhibitory kappa B kinase-α (IKKα) that promotes NSCLC cell migration through non-canonical nuclear factor kappa-light-chain-enhancer of activated B cells 2 (NF-κB2) signaling. Bioinformatics analysis of 513 lung adenocarcinoma patients reveals elevated t-DARPP isoform expression is associated with poor overall survival. Histopathological investigation of 62 human lung adenocarcinoma tissues also shows that t-DARPP expression is elevated with increasing tumor (T) stage. Our data suggest that DARPP-32 isoforms serve as a negative prognostic marker associated with increasing stages of NSCLC and may represent a novel therapeutic target.
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Affiliation(s)
- Sk Kayum Alam
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Matteo Astone
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Ping Liu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, 55905, USA.,Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Stephanie R Hall
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Abbygail M Coyle
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Erin N Dankert
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Dane K Hoffman
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Wei Zhang
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Rui Kuang
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Anja C Roden
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Aaron S Mansfield
- Department of Oncology, Division of Medical Oncology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Luke H Hoeppner
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA.
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11
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Krętowski R, Borzym-Kluczyk M, Stypułkowska A, Brańska-Januszewska J, Ostrowska H, Cechowska-Pasko M. Low glucose dependent decrease of apoptosis and induction of autophagy in breast cancer MCF-7 cells. Mol Cell Biochem 2016; 417:35-47. [PMID: 27160935 PMCID: PMC4887537 DOI: 10.1007/s11010-016-2711-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 04/27/2016] [Indexed: 01/06/2023]
Abstract
Cancer cells have developed a number of adaptation mechanisms involving the signal activation of the transduction pathways, which promotes the progression and metastasis. Our results showed that the percentage of apoptotic MCF-7 cells incubated in the low glucose medium for 48 h was lower in comparison to those cultured in the high glucose medium, despite the high expression of the proapoptotic transcription factor-CHOP. Furthermore, the MCF-7 cells incubated in the low glucose medium for 48 h showed a higher expression of NF-κB p100/p52 subunits compared to cells incubated in the high glucose medium. Moreover, our findings demonstrated that the shortage of glucose strongly induces autophagy in MCF-7 cells. The activation of this process is not associated with the changes in the expression of mTOR kinase. We suggest, that the antiapoptotic chaperone ORP150 induction, transcription factor NF-κB2 activation, and increased autophagy constitute mechanisms protecting the MCF-7 cells against apoptosis.
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Affiliation(s)
- Rafał Krętowski
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Mickiewicza 2A, 15-222, Białystok, Poland
| | - Małgorzata Borzym-Kluczyk
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Mickiewicza 2A, 15-222, Białystok, Poland
| | - Anna Stypułkowska
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Mickiewicza 2A, 15-222, Białystok, Poland
| | | | - Halina Ostrowska
- Department of Biology, Medical University of Białystok, Białystok, Poland
| | - Marzanna Cechowska-Pasko
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Mickiewicza 2A, 15-222, Białystok, Poland.
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12
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Abstract
B cell neoplasms comprise >50% of blood cancers. However, many types of B cell malignancies remain incurable. Identification and validation of novel genetic risk factors and oncogenic signaling pathways are imperative for the development of new therapeutic strategies. We and others recently identified TRAF3, a cytoplasmic adaptor protein, as a novel tumor suppressor in B lymphocytes. We found that TRAF3 inactivation results in prolonged survival of mature B cells, which eventually leads to spontaneous development of B lymphomas in mice. Corroborating our findings, TRAF3 deletions and inactivating mutations frequently occur in human B cell chronic lymphocytic leukemia, splenic marginal zone lymphoma, mantle cell lymphoma, multiple myeloma, Waldenström’s macroglobulinemia, and Hodgkin lymphoma. In this context, we have been investigating TRAF3 signaling mechanisms in B cells, and are developing new therapeutic strategies to target TRAF3 downstream signaling pathways in B cell neoplasms. Here we discuss our new translational data that demonstrate the therapeutic potential of targeting TRAF3 downstream signaling pathways in B lymphoma and multiple myeloma.
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Affiliation(s)
- Carissa R Moore
- Department of Cell Biology and Neuroscience, New Jersey, USA
| | - Shanique Ke Edwards
- Department of Cell Biology and Neuroscience, New Jersey, USA ; Graduate Program in Molecular Biosciences, Rutgers University, Piscataway, New Jersey, USA
| | - Ping Xie
- Department of Cell Biology and Neuroscience, New Jersey, USA ; Member, Rutgers Cancer Institute of New Jersey, USA
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13
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Gardam S, Brink R. Non-Canonical NF-κB Signaling Initiated by BAFF Influences B Cell Biology at Multiple Junctures. Front Immunol 2014; 4:509. [PMID: 24432023 PMCID: PMC3880999 DOI: 10.3389/fimmu.2013.00509] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 12/24/2013] [Indexed: 01/13/2023] Open
Abstract
It has been more than a decade since it was recognized that the nuclear factor of kappa light polypeptide gene enhancer in B cells (NF-κB) transcription factor family was activated by two distinct pathways: the canonical pathway involving NF-κB1 and the non-canonical pathway involving NF-κB2. During this time a great deal of evidence has been amassed on the ligands and receptors that activate these pathways, the cytoplasmic adapter molecules involved in transducing the signals from receptors to nucleus, and the resulting physiological outcomes within body tissues. In contrast to NF-κB1 signaling, which can be activated by a wide variety of receptors, the NF-κB2 pathway is typically only activated by a subset of receptor and ligand pairs belonging to the tumor necrosis factor (TNF) family. Amongst these is B cell activating factor of the TNF family (BAFF) and its receptor BAFFR. Whilst BAFF is produced by many cell types throughout the body, BAFFR expression appears to be restricted to the hematopoietic lineage and B cells in particular. For this reason, the main physiological outcomes of BAFF mediated NF-κB2 activation are confined to B cells. Indeed BAFF mediated NF-κB2 signaling contributes to peripheral B cell survival and maturation as well as playing a role in antibody responses and long term maintenance plasma cells. Thus the importance BAFF and NF-κB2 permeates the entire B cell lifespan and impacts on this important component of the immune system in a variety of ways.
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Affiliation(s)
- Sandra Gardam
- Immunology Division, Garvan Institute of Medical Research , Darlinghurst, NSW , Australia
| | - Robert Brink
- Immunology Division, Garvan Institute of Medical Research , Darlinghurst, NSW , Australia ; St. Vincent's Clinical School, University of New South Wales , Darlinghurst, NSW , Australia
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14
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Vaughan C, Mohanraj L, Singh S, Dumur CI, Ramamoorthy M, Garrett CT, Windle B, Yeudall WA, Deb S, Deb SP. Human Oncoprotein MDM2 Up-regulates Expression of NF-κB2 Precursor p100 Conferring a Survival Advantage to Lung Cells. Genes Cancer 2012; 2:943-55. [PMID: 22701761 DOI: 10.1177/1947601911436008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 12/24/2011] [Indexed: 12/12/2022] Open
Abstract
The current model predicts that MDM2 is primarily overexpressed in cancers with wild-type (WT) p53 and contributes to oncogenesis by degrading p53. Following a correlated expression of MDM2 and NF-κB2 transcripts in human lung tumors, we have identified a novel transactivation function of MDM2. Here, we report that in human lung tumors, overexpression of MDM2 was found in approximately 30% of cases irrespective of their p53 status, and expression of MDM2 and NF-κB2 transcripts showed a highly significant statistical correlation in tumors with WT p53. We investigated the significance of this correlated expression in terms of mechanism and biological function. Increase in MDM2 expression from its own promoter in transgenic mice remarkably enhanced expression of NF-κB2 compared with its non-transgenic littermates. Knockdown or elimination of endogenous MDM2 expression in cultured non-transformed or lung tumor cells drastically reduced expression of NF-κB2 transcripts, suggesting a normal physiological role of MDM2 in regulating NF-κB2 transcription. MDM2 could up-regulate expression of NF-κB2 transcripts when its p53-interaction domain was blocked with Nutlin-3, indicating that the MDM2-p53 interaction is dispensable for up-regulation of NF-κB2 expression. Consistently, analysis of functional domains of MDM2 indicated that although the p53-interaction domain of MDM2 contributes to the up-regulation of the NFκB2 promoter, MDM2 does not require direct interactions with p53 for this function. Accordingly, MDM2 overexpression in non-transformed or lung cancer cells devoid of p53 also generated a significant increase in the expression of NF-κB2 transcript and its targets CXCL-1 and CXCL-10, whereas elimination of MDM2 expression had the opposite effects. MDM2-mediated increase in p100/NF-κB2 expression reduced cell death mediated by paclitaxel. Furthermore, knockdown of NF-κB2 expression retarded cell proliferation. Based on these data, we propose that MDM2-mediated NF-κB2 up-regulation is a combined effect of p53-dependent and independent mechanisms and that it confers a survival advantage to lung cancer cells.
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Affiliation(s)
- Catherine Vaughan
- Department of Biochemistry & Molecular Biology, Virginia Commonwealth University, Richmond, VA, USA
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