1
|
Smith S, Lopez S, Kim A, Kasteri J, Olumuyide E, Punu K, de la Parra C, Sauane M. Interleukin 24: Signal Transduction Pathways. Cancers (Basel) 2023; 15:3365. [PMID: 37444474 PMCID: PMC10340555 DOI: 10.3390/cancers15133365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/16/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Interleukin 24 is a member of the IL-10 family with crucial roles in antitumor, wound healing responses, host defense, immune regulation, and inflammation. Interleukin 24 is produced by both immune and nonimmune cells. Its canonical pathway relies on recognition and interaction with specific Interleukin 20 receptors in the plasma membrane and subsequent cytoplasmic Janus protein tyrosine kinases (JAK)/signal transducer and activator of the transcription (STAT) activation. The identification of noncanonical JAK/STAT-independent signaling pathways downstream of IL-24 relies on the interaction of IL-24 with protein kinase R in the cytosol, respiratory chain proteins in the inner mitochondrial membrane, and chaperones such as Sigma 1 Receptor in the endoplasmic reticulum. Numerous studies have shown that enhancing or inhibiting the expression of Interleukin 24 has a therapeutic effect in animal models and clinical trials in different pathologies. Successful drug targeting will require a deeper understanding of the downstream signaling pathways. In this review, we discuss the signaling pathway triggered by IL-24.
Collapse
Affiliation(s)
- Simira Smith
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Sual Lopez
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Anastassiya Kim
- Ph.D. Program in Biology, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, USA; (A.K.); (C.d.l.P.)
| | - Justina Kasteri
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Ezekiel Olumuyide
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Kristian Punu
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Columba de la Parra
- Ph.D. Program in Biology, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, USA; (A.K.); (C.d.l.P.)
- Department of Chemistry, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA
| | - Moira Sauane
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
- Ph.D. Program in Biology, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, USA; (A.K.); (C.d.l.P.)
| |
Collapse
|
2
|
Lu YS, Chiang PM, Huang YC, Yang SJ, Hung LY, Medeiros LJ, Chen YP, Chen TY, Chang MS, Chang KC. Overexpression of interleukin-20 correlates with favourable prognosis in diffuse large B-cell lymphoma. Pathology 2023; 55:94-103. [PMID: 36175183 DOI: 10.1016/j.pathol.2022.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/03/2022] [Accepted: 07/06/2022] [Indexed: 01/27/2023]
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common type of lymphoma worldwide, accounting for about 40% of cases. The role of cytokines in the pathogenesis of lymphomas has been rarely addressed, although cytokines have a close immunological relationship with lymphocytes. We observed overexpression of interleukin (IL)-20 in reactive germinal centres (GCs) leading us to hypothesise that IL-20 may play a role in lymphomagenesis. In this study, we surveyed for IL-20 expression in various types of lymphoma and found that IL-20 was expressed most frequently in follicular lymphoma (94%), but also in Burkitt lymphoma (81%), mantle cell lymphoma (57%), nodal marginal zone lymphoma (56%), Hodgkin lymphomas (50%), small lymphocytic lymphoma (50%) and diffuse large B-cell lymphoma (DLBCL, 48%). IL-20 was not expressed in extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma), lymphoplasmacytic lymphoma, and plasmacytoma. T-cell lymphomas were largely negative for IL-20 expression, except for anaplastic large cell lymphoma (ALCL, 61%), which frequently expressed IL-20, especially in cutaneous ALCL, and showed an inverse association with ALK expression (p=0.024). We further tested IL-20 expression in another large cohort of DLBCL and found IL-20 expression more frequently in germinal centre B-cell (GCB) than in non-GCB subtype [16/26 (62%) versus 24/64 (38%), p=0.038]. In this cohort, IL-20 was associated with a lower rate of extranodal involvement (p=0.009), bone marrow involvement (p=0.040), and better overall survival (p=0.020). Mechanistically, IL-20 overexpression promoted G1 cell cycle arrest and subsequent apoptosis of DLBCL cells and vice versa in vitro. We conclude that IL-20 may be involved in lymphomagenesis and may be useful as a prognostic marker in patients with DLBCL. In addition, IL-20 plays an inhibitory role in DLBCL growth, probably through cell cycle regulation.
Collapse
Affiliation(s)
- Yi-Sian Lu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Min Chiang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ching Huang
- Division of Hematology and Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shiang-Jie Yang
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Liang-Yi Hung
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - L Jeffrey Medeiros
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ya-Ping Chen
- Division of Hematology and Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tsai-Yun Chen
- Division of Hematology and Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ming-Shi Chang
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kung-Chao Chang
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Pathology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
| |
Collapse
|
3
|
Awasthi N, Liongue C, Ward AC. STAT proteins: a kaleidoscope of canonical and non-canonical functions in immunity and cancer. J Hematol Oncol 2021; 14:198. [PMID: 34809691 PMCID: PMC8607625 DOI: 10.1186/s13045-021-01214-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/09/2021] [Indexed: 12/24/2022] Open
Abstract
STAT proteins represent an important family of evolutionarily conserved transcription factors that play key roles in diverse biological processes, notably including blood and immune cell development and function. Classically, STAT proteins have been viewed as inducible activators of transcription that mediate cellular responses to extracellular signals, particularly cytokines. In this 'canonical' paradigm, latent STAT proteins become tyrosine phosphorylated following receptor activation, typically via downstream JAK proteins, facilitating their dimerization and translocation into the nucleus where they bind to specific sequences in the regulatory region of target genes to activate transcription. However, growing evidence has challenged this paradigm and identified alternate 'non-canonical' functions, such as transcriptional repression and roles outside the nucleus, with both phosphorylated and unphosphorylated STATs involved. This review provides a revised framework for understanding the diverse kaleidoscope of STAT protein functional modalities. It further discusses the implications of this framework for our understanding of STAT proteins in normal blood and immune cell biology and diseases such as cancer, and also provides an evolutionary context to place the origins of these alternative functional modalities.
Collapse
Affiliation(s)
- Nagendra Awasthi
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia.,Institue of Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia
| | - Clifford Liongue
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia.,Institue of Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia
| | - Alister C Ward
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia. .,Institue of Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia.
| |
Collapse
|
4
|
Simoni-Nieves A, Salas-Silva S, Chávez-Rodríguez L, Escobedo-Calvario A, Desoteux M, Bucio L, Souza V, Miranda-Labra RU, Muñoz-Espinosa LE, Coulouarn C, Gutiérrez-Ruiz MC, Marquardt JU, Gomez-Quiroz LE. The Consumption of Cholesterol-Enriched Diets Conditions the Development of a Subtype of HCC with High Aggressiveness and Poor Prognosis. Cancers (Basel) 2021; 13:cancers13071721. [PMID: 33917315 PMCID: PMC8038696 DOI: 10.3390/cancers13071721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/19/2021] [Accepted: 03/09/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary It is well known that non-alcoholic fatty liver disease is an important risk factor in the development of hepatocellular carcinoma, but the implication of cholesterol in this subject remains unclear, especially in western countries where its consumption is particularly elevated. This work provides evidence of a cholesterol-related transcriptional fingerprint and its implications in the progression and aggressiveness of hepatocellular carcinoma with remarkable interest in clinical practice. Abstract Non-alcoholic fatty liver disease (NAFLD) and progression to non-alcoholic steatohepatitis (NASH) result as a consequence of diverse conditions, mainly unbalanced diets. Particularly, high-fat and cholesterol content, as well as carbohydrates, such as those commonly ingested in Western countries, frequently drive adverse metabolic alterations in the liver and promote NAFLD development. Lipid liver overload is also one of the main risk factors for initiation and progression of hepatocellular carcinoma (HCC), but detailed knowledge on the relevance of high nutritional cholesterol remains elusive. We were aimed to characterize HCC development in mice fed with a Western diet (high in lipids and cholesterol) and to identify molecular alterations that define a subtype of liver cancer induced by lipid overload. Mice under western or high cholesterol diets more frequently developed tumors with a more aggressive phenotype than animals fed with a chow diet. Associated changes involved macrophage infiltration, angiogenesis, and stemness features. RNA-seq revealed a specific gene expression signature (Slc41a; Fabp5; Igdcc4 and Mthfd1l) resembling the adverse phenotypic features and poor clinical outcomes seen in patients with HCC. In conclusion; consumption of lipid enriched diets; particularly cholesterol; could accelerate HCC development with an aggressive phenotype and poor prognosis
Collapse
Affiliation(s)
- Arturo Simoni-Nieves
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Mexico City 09340, Mexico; (A.S.-N.); (S.S.-S.); (L.C.-R.); (A.E.-C.)
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
| | - Soraya Salas-Silva
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Mexico City 09340, Mexico; (A.S.-N.); (S.S.-S.); (L.C.-R.); (A.E.-C.)
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
| | - Lisette Chávez-Rodríguez
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Mexico City 09340, Mexico; (A.S.-N.); (S.S.-S.); (L.C.-R.); (A.E.-C.)
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
| | - Alejandro Escobedo-Calvario
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Mexico City 09340, Mexico; (A.S.-N.); (S.S.-S.); (L.C.-R.); (A.E.-C.)
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
| | - Matthis Desoteux
- Centre de Lutte contre le Cancer Eugène Marquis, Inserm, Univ Rennes, COSS (Chemistry, Oncogenesis Stress Signaling), UMR_S 1242, 35042 Rennes, France; (M.D.); (C.C.)
| | - Leticia Bucio
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
- Laboratorio de Medicina Experimental, Unidad de Medicina Traslacional, IIB, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City 14080, Mexico
| | - Verónica Souza
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
- Laboratorio de Medicina Experimental, Unidad de Medicina Traslacional, IIB, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City 14080, Mexico
| | - Roxana U. Miranda-Labra
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
- Laboratorio de Medicina Experimental, Unidad de Medicina Traslacional, IIB, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City 14080, Mexico
| | - Linda E. Muñoz-Espinosa
- Liver Unit, Department of Internal Medicine, “Dr. José E. González” University Hospital, Universidad Autónoma de Nuevo León, Monterrey 64460, NL, Mexico;
| | - Cédric Coulouarn
- Centre de Lutte contre le Cancer Eugène Marquis, Inserm, Univ Rennes, COSS (Chemistry, Oncogenesis Stress Signaling), UMR_S 1242, 35042 Rennes, France; (M.D.); (C.C.)
| | - María Concepción Gutiérrez-Ruiz
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
- Laboratorio de Medicina Experimental, Unidad de Medicina Traslacional, IIB, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City 14080, Mexico
| | - Jens U. Marquardt
- Department of Medicine I, University Hospital Schleswig-Holstein, 23562 Lübeck, Germany;
| | - Luis E. Gomez-Quiroz
- Área de Medicina Experimental y Traslacional, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (L.B.); (V.S.); (R.U.M.-L.); (M.C.G.-R.)
- Laboratorio de Medicina Experimental, Unidad de Medicina Traslacional, IIB, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City 14080, Mexico
- Correspondence: ; Tel./Fax: +55-58044730
| |
Collapse
|
5
|
Attia YM, Tawfiq RA, Gibriel AA, Ali AA, Kassem DH, Hammam OA, Elmazar MM. Activation of FXR modulates SOCS3/Jak2/STAT3 signaling axis in a NASH-dependent hepatocellular carcinoma animal model. Biochem Pharmacol 2021; 186:114497. [PMID: 33675775 DOI: 10.1016/j.bcp.2021.114497] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 02/25/2021] [Indexed: 02/07/2023]
Abstract
Despite the recent substantial progress in the treatment of hepatocellular carcinoma (HCC) from viral etiology, non-alcoholic steatohepatitis (NASH) is on a trajectory to become the fastest growing indication for HCC-related liver transplantation. The Farnesoid X receptor (FXR) is a member of the nuclear receptor superfamily with multifaceted roles in several metabolic disorders, particularly NASH. Its role as a tumor suppressor was also highlighted. Herein, we investigated the effect of obeticholic acid (OCA), as an FXR agonist, on NASH-associated HCC (NASH-HCC) animal model induced by diethylnitrosamine and high fat choline-deficient diet, exploring the potential impact on the suppressor of cytokine signaling 3 (SOCS3)/Janus kinase 2 (Jak2)/signal transducer and activator of transcription 3 (STAT3) pathway. Results indicated that OCA treatment upregulated FXR and its key mediator, small heterodimer partner (SHP), with remarkable amelioration in the dysplastic foci observed in the NASH-HCC group. This was paralleled with noticeable downregulation of alpha fetoprotein along with reduction in interferon gamma and transforming growth factor beta-1 hepatic levels besides caspase-3 and p53 upregulation. Moreover, sirtuin-1 (SIRT-1), a key regulator of FXR that controls the regenerative response of the liver, was elevated following OCA treatment. Modulation in the SOCS3/Jak2/STAT3 signaling axis was also reported. In conclusion, OCA attenuated the development and progression of NASH-dependent HCC possibly by interfering with SOCS3/Jak2/STAT3 pathway suggesting the potential use of FXR activators in NASH-related disorders, even at later stages of the disease, to impede its progression to the more deteriorating condition of HCC.
Collapse
Affiliation(s)
- Yasmeen M Attia
- Pharmacology Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt; The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt.
| | - Rasha A Tawfiq
- Pharmacology Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt; The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Abdullah A Gibriel
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt; Biochemistry & Molecular Biology Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Aya A Ali
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Dina H Kassem
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Olfat A Hammam
- Pathology Department, Theodor Bilharz Research Institute, Cairo, Egypt
| | - Mohamed M Elmazar
- Pharmacology Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt; The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| |
Collapse
|
6
|
Li M, Ruan B, Wei J, Yang Q, Chen M, Ji M, Hou P. ACYP2 contributes to malignant progression of glioma through promoting Ca 2+ efflux and subsequently activating c-Myc and STAT3 signals. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:106. [PMID: 32517717 PMCID: PMC7285537 DOI: 10.1186/s13046-020-01607-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/28/2020] [Indexed: 12/19/2022]
Abstract
Background Acylphosphatase 2 (ACYP2) is involved in cell differentiation, energy metabolism and hydrolysis of intracellular ion pump. It has been reported as a negative regulator in leukemia and a positive regulator in colon cancer, respectively. However, its biological role in glioma remains totally unclear. Methods We performed quantitative RT-PCR (qRT-PCR), immunohistochemistry (IHC) and western blot assays to evaluate ACYP2 expression. The functions of ACYP2 in glioma cells were determined by a series of in vitro and in vivo experiments, including cell proliferation, colony formation, cell cycle, apoptosis, migration, invasion and nude mouse tumorigenicity assays. In addition, western blot and co-immunoprecipitation (Co-IP) assays were used to identify its downstream targets. Results Knocking down ACYP2 in glioma cells significantly inhibited cell proliferation, colony formation, migration, invasion and tumorigenic potential in nude mice, and induced cell cycle arrest and apoptosis. Conversely, ectopic expression of ACYP2 in glioma cells dramatically promoted malignant phenotypes of glioma cells. Mechanistically, ACYP2 promoted malignant progression of glioma cells through regulating intracellular Ca2+ homeostasis via its interaction with PMCA4, thereby activating c-Myc and PTP1B/STAT3 signals. This could be effectively reversed by Ca2+ chelator BAPTA-AM or calpain inhibitor calpeptin. Conclusions Our data demonstrate that ACYP2 functions as an oncogene in glioma through activating c-Myc and STAT3 signals via the regulation of intracellular Ca2+ homeostasis, and indicate that ACYP2 may be a potential therapeutic target and prognostic biomarker in gliomas.
Collapse
Affiliation(s)
- Mengdan Li
- Key Laboratory for tumor Precision Medicine of Shaanxi Province and Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.,Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Banjun Ruan
- Key Laboratory for tumor Precision Medicine of Shaanxi Province and Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.,Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Jing Wei
- Key Laboratory for tumor Precision Medicine of Shaanxi Province and Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.,Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Qi Yang
- Key Laboratory for tumor Precision Medicine of Shaanxi Province and Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.,Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Mingwei Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Meiju Ji
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.
| | - Peng Hou
- Key Laboratory for tumor Precision Medicine of Shaanxi Province and Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China. .,Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.
| |
Collapse
|
7
|
Agupitan AD, Neeson P, Williams S, Howitt J, Haupt S, Haupt Y. P53: A Guardian of Immunity Becomes Its Saboteur through Mutation. Int J Mol Sci 2020; 21:E3452. [PMID: 32414156 PMCID: PMC7278985 DOI: 10.3390/ijms21103452] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/06/2020] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
Awareness of the importance of immunity in controlling cancer development triggered research into the impact of its key oncogenic drivers on the immune response, as well as their value as targets for immunotherapy. At the heart of tumour suppression is p53, which was discovered in the context of viral infection and now emerges as a significant player in normal and cancer immunity. Wild-type p53 (wt p53) plays fundamental roles in cancer immunity and inflammation. Mutations in p53 not only cripple wt p53 immune functions but also sinisterly subvert the immune function through its neomorphic gain-of-functions (GOFs). The prevalence of mutant p53 across different types of human cancers, which are associated with inflammatory and immune dysfunction, further implicates mutant p53 in modulating cancer immunity, thereby promoting tumorigenesis, metastasis and invasion. In this review, we discuss several mutant p53 immune GOFs in the context of the established roles of wt p53 in regulating and responding to tumour-associated inflammation, and regulating innate and adaptive immunity. We discuss the capacity of mutant p53 to alter the tumour milieu to support immune dysfunction, modulate toll-like receptor (TLR) signalling pathways to disrupt innate immunity and subvert cell-mediated immunity in favour of immune privilege and survival. Furthermore, we expose the potential and challenges associated with mutant p53 as a cancer immunotherapy target and underscore existing therapies that may benefit from inquiry into cancer p53 status.
Collapse
Affiliation(s)
- Arjelle Decasa Agupitan
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne 3000, Victoria, Australia; (A.D.A.); (S.H.)
| | - Paul Neeson
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville 3010, Victoria, Australia;
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne 3000, Victoria, Australia
| | - Scott Williams
- Division of Radiation Oncology and Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne 3000, Victoria, Australia;
| | - Jason Howitt
- School of Health Sciences, Swinburne University, Melbourne 3122, Victoria, Australia;
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Sue Haupt
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne 3000, Victoria, Australia; (A.D.A.); (S.H.)
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville 3010, Victoria, Australia;
| | - Ygal Haupt
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne 3000, Victoria, Australia; (A.D.A.); (S.H.)
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville 3010, Victoria, Australia;
- Department of Clinical Pathology, University of Melbourne, Parkville 3010, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne 3800, Victoria, Australia
| |
Collapse
|
8
|
Maleknia M, Valizadeh A, Pezeshki SMS, Saki N. Immunomodulation in leukemia: cellular aspects of anti-leukemic properties. Clin Transl Oncol 2019; 22:1-10. [DOI: 10.1007/s12094-019-02132-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 05/11/2019] [Indexed: 01/21/2023]
|
9
|
Burmeister AR, Johnson MB, Yaemmongkol JJ, Marriott I. Murine astrocytes produce IL-24 and are susceptible to the immunosuppressive effects of this cytokine. J Neuroinflammation 2019; 16:55. [PMID: 30825881 PMCID: PMC6397747 DOI: 10.1186/s12974-019-1444-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 02/24/2019] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Glia are key regulators of inflammatory responses within the central nervous system (CNS) following infection or trauma. We have previously demonstrated the ability of activated glia to rapidly produce pro-inflammatory mediators followed by a transition to an anti-inflammatory cytokine production profile that includes the immunosuppressive cytokine interleukin (IL)-10 and the closely related cytokine IL-19. IL-24, another member of the IL-10 family, has been studied in a number of inflammatory conditions in the periphery and is known to modulate immune cell activity. However, the ability of glia to produce IL-24 remains unclear and the effects of this pleiotropic cytokine on glial immune functions have not been investigated. METHODS In this study, we have assessed whether primary murine glia produce IL-24 following stimulation and evaluated the effect of this cytokine on the immune responses of such cells. We have utilized RT-PCR and immunoblot analyses to assess the expression of IL-24 and its cognate receptors by astrocytes following challenge with bacteria or their components. Furthermore, we have determined the effect of recombinant IL-24 on astrocyte immune signaling and responses to clinically relevant bacteria using RT-PCR and specific capture ELISAs. RESULTS We demonstrate that astrocytes express IL-24 mRNA and release detectable amounts of this cytokine protein in a delayed manner following bacterial challenge. In addition, we have determined that glia constitutively express the cognate receptors for IL-24 and show that such expression can be increased in astrocytes following activation. Importantly, our results indicate that IL-24 exerts an immunosuppressive effect on astrocytes by elevating suppressor of cytokine signaling 3 expression and limiting IL-6 production following challenge. Furthermore, we have demonstrated that IL-24 can also augment the release of IL-10 by bacterially challenged astrocytes and can induce the expression of the potentially neuroprotective mediators, glutamate transporter 1, and cyclooxygenase 2. CONCLUSIONS The expression of IL-24 and its cognate receptors by astrocytes following bacterial challenge, and the ability of this cytokine to limit inflammatory responses while promoting the expression of immunosuppressive and/or neuroprotective mediators, raises the intriguing possibility that IL-24 functions to regulate or resolve CNS inflammation following bacterial infection in order to limit neuronal damage.
Collapse
Affiliation(s)
- Amanda R. Burmeister
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223 USA
| | - M. Brittany Johnson
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223 USA
| | - Jessica J. Yaemmongkol
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223 USA
| | - Ian Marriott
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223 USA
| |
Collapse
|
10
|
Persaud L, Mighty J, Zhong X, Francis A, Mendez M, Muharam H, Redenti SM, Das D, Aktas BH, Sauane M. IL-24 Promotes Apoptosis through cAMP-Dependent PKA Pathways in Human Breast Cancer Cells. Int J Mol Sci 2018; 19:E3561. [PMID: 30424508 PMCID: PMC6274865 DOI: 10.3390/ijms19113561] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/04/2018] [Accepted: 11/08/2018] [Indexed: 11/16/2022] Open
Abstract
Interleukin 24 (IL-24) is a tumor-suppressing protein, which inhibits angiogenesis and induces cancer cell-specific apoptosis. We have shown that IL-24 regulates apoptosis through phosphorylated eukaryotic initiation factor 2 alpha (eIF2α) during endoplasmic reticulum (ER) stress in cancer. Although multiple stresses converge on eIF2α phosphorylation, the cellular outcome is not always the same. In particular, ER stress-induced apoptosis is primarily regulated through the extent of eIF2α phosphorylation and activating transcription factor 4 (ATF4) action. Our studies show for the first time that cyclic adenosine monophosphate (cAMP)-dependent protein kinase A (PKA) activation is required for IL-24-induced cell death in a variety of breast cancer cell lines and this event increases ATF4 activity. We demonstrate an undocumented role for PKA in regulating IL-24-induced cell death, whereby PKA stimulates phosphorylation of p38 mitogen-activated protein kinase and upregulates extrinsic apoptotic factors of the Fas/FasL signaling pathway and death receptor 4 expression. We also demonstrate that phosphorylation and nuclear import of tumor suppressor TP53 occurs downstream of IL-24-mediated PKA activation. These discoveries provide the first mechanistic insights into the function of PKA as a key regulator of the extrinsic pathway, ER stress, and TP53 activation triggered by IL-24.
Collapse
Affiliation(s)
- Leah Persaud
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
- Biological Sciences Doctoral Program, The Graduate Center, City University of New York, 365 Fifth Avenue, Room 4315, New York, NY 10016, USA.
| | - Jason Mighty
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
- Biological Sciences Doctoral Program, The Graduate Center, City University of New York, 365 Fifth Avenue, Room 4315, New York, NY 10016, USA.
| | - Xuelin Zhong
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
- Biological Sciences Doctoral Program, The Graduate Center, City University of New York, 365 Fifth Avenue, Room 4315, New York, NY 10016, USA.
| | - Ashleigh Francis
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
| | - Marifer Mendez
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
| | - Hilal Muharam
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
| | - Stephen M Redenti
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
- Biological Sciences Doctoral Program, The Graduate Center, City University of New York, 365 Fifth Avenue, Room 4315, New York, NY 10016, USA.
| | - Dibash Das
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
- Biological Sciences Doctoral Program, The Graduate Center, City University of New York, 365 Fifth Avenue, Room 4315, New York, NY 10016, USA.
| | - Bertal Huseyin Aktas
- Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA.
- Harvard Medical School, and Brigham and Women's Hospital, Division of Hematology, 75 Francis Street, Boston, MA 02115, USA.
| | - Moira Sauane
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA.
- Biological Sciences Doctoral Program, The Graduate Center, City University of New York, 365 Fifth Avenue, Room 4315, New York, NY 10016, USA.
| |
Collapse
|
11
|
Sun S, Wang Y, Wu Y, Gao Y, Li Q, Abdulrahman AA, Liu XF, Ji GQ, Gao J, Li L, Wan FP, Li YQ, Gao DS. Identification of COL1A1 as an invasion‑related gene in malignant astrocytoma. Int J Oncol 2018; 53:2542-2554. [PMID: 30272346 PMCID: PMC6203155 DOI: 10.3892/ijo.2018.4568] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 08/24/2018] [Indexed: 12/26/2022] Open
Abstract
Malignant astrocytoma (MA) is the most common and severe type of brain tumor. A greater understanding of the underlying mechanisms responsible for the development of MA would be beneficial for the development of targeted molecular therapies. In the present study, the upregulated differentially expressed genes (DEGs) in MA were obtained from the Gene Expression Omnibus database using R/Bioconductor software. DEGs in different World Health Organization classifications were compared using the Venny tool and 15 genes, including collagen type I α1 chain (COL1A1) and laminin subunit γ1 (LAMC1), were revealed to be involved in the malignant progression of MA. In addition, the upregulated DEGs in MA were evaluated using functional annotations of Gene Ontology and Kyoto Encyclopedia of Genes and Genomes with the Database for Annotation, Visualization, and Integrated Discovery tool. The results indicated that invasion-associated enrichment was observed in 'extracellular matrix' (ECM), 'cell adhesion' and 'phosphoinositide 3-kinase-protein kinase B signaling pathway'. Subsequently, the analysis of the protein-protein interactions was performed using STRING and Cytoscape software, which revealed that the ECM component was the invasion-associated module and its corresponding genes included COL1A1, LAMC1 and fibronectin 1. Finally, survival Kaplan-Meier estimate was conducted using cBioportal online, which demonstrated that COL1A1 expression affected the survival of and recurrence in patients with MA. Moreover, the results of in vitro Transwell assay and western blot analysis revealed that the depleted levels of COL1A1 also decreased the expression of several proteins associated with cell invasion, including phosphorylated-signal transducer and activator of transcription 3, matrix metalloproteinase (MMP)-2, MMP-9 and nuclear factor-κB. On the whole, the present study identified the invasion-related target genes and the associated potential pathways in MA. The results indicated that COL1A1 may be a candidate biomarker for the prognosis and treatment of MA.
Collapse
Affiliation(s)
- Shen Sun
- Department of Histology and Embryology, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Yue Wang
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Yue Wu
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Yue Gao
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Qi Li
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Ayanlaja Abiola Abdulrahman
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Xin-Feng Liu
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Guang-Quan Ji
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Jin Gao
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Li Li
- Department of Pathophysiology, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Fa-Ping Wan
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Yun-Qing Li
- Department of Anatomy and Histology, The Fourth Military Medical University, Xi'an, Shaanxi 710003, P.R. China
| | - Dian-Shuai Gao
- National Demonstration Center for Experimental Basic Medical Science Education, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| |
Collapse
|
12
|
Coactosin-like protein CLP/Cotl1 suppresses breast cancer growth through activation of IL-24/PERP and inhibition of non-canonical TGFβ signaling. Oncogene 2017; 37:323-331. [DOI: 10.1038/onc.2017.342] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 07/10/2017] [Accepted: 08/12/2017] [Indexed: 12/11/2022]
|
13
|
Decreased STAT3 Phosphorylation Mediates Cell Swelling in Ammonia-Treated Astrocyte Cultures. BIOLOGY 2016; 5:biology5040048. [PMID: 27918421 PMCID: PMC5192428 DOI: 10.3390/biology5040048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/18/2016] [Accepted: 11/24/2016] [Indexed: 12/25/2022]
Abstract
Brain edema, due largely to astrocyte swelling, and the subsequent increase in intracranial pressure and brain herniation, are major complications of acute liver failure (ALF). Elevated level of brain ammonia has been strongly implicated in the development of astrocyte swelling associated with ALF. The means by which ammonia brings about astrocyte swelling, however, is incompletely understood. Recently, oxidative/nitrosative stress and associated signaling events, including activation of mitogen-activated protein kinases (MAPKs), as well as activation of the transcription factor, nuclear factor-kappaB (NF-κB), have been implicated in the mechanism of ammonia-induced astrocyte swelling. Since these signaling events are known to be regulated by the transcription factor, signal transducer and activator of transcription 3 (STAT3), we examined the state of STAT3 activation in ammonia-treated cultured astrocytes, and determined whether altered STAT3 activation and/or protein expression contribute to the ammonia-induced astrocyte swelling. STAT3 was found to be dephosphorylated (inactivated) at Tyrosine705 in ammonia-treated cultured astrocytes. Total STAT3 protein level was also reduced in ammonia-treated astrocytes. We also found a significant increase in protein tyrosine phosphatase receptor type-1 (PTPRT-1) protein expression in ammonia-treated cultured astrocytes, and that inhibition of PTPRT-1 enhanced the phosphorylation of STAT3 after ammonia treatment. Additionally, exposure of cultured astrocytes to inhibitors of protein tyrosine phosphatases diminished the ammonia-induced cell swelling, while cultured astrocytes over-expressing STAT3 showed a reduction in the astrocyte swelling induced by ammonia. Collectively, these studies strongly suggest that inactivation of STAT3 represents a critical event in the mechanism of the astrocyte swelling associated with acute liver failure.
Collapse
|
14
|
FU CHUNLING, GONG YANQING, SHI XUANXUAN, SHI HENGLIANG, WAN YAN, WU QINGYUN, XU KAILIN. Expression and regulation of COP1 in chronic lymphocytic leukemia cells for promotion of cell proliferation and tumorigenicity. Oncol Rep 2015; 35:1493-500. [DOI: 10.3892/or.2015.4526] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 11/18/2015] [Indexed: 11/06/2022] Open
|
15
|
Expression and regulation of CacyBP/SIP in chronic lymphocytic leukemia cell balances of cell proliferation with apoptosis. J Cancer Res Clin Oncol 2015; 142:741-8. [PMID: 26603518 DOI: 10.1007/s00432-015-2077-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 11/11/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE Chronic lymphocytic leukemia (CLL) is the most common leukemia in Western countries, with incidence in Chinese populations also increasing. CLL involves an accumulation of abnormal B cells which result in dysregulation of cell proliferation and apoptosis rates. The calcyclin-binding protein/Siah-1-interacting protein (CacyBP/SIP) plays a pivotal role in tumorigenicity and cell apoptosis. Here, we investigated the function of CacyBP/SIP in CLL cell proliferation and apoptosis. METHODS CacyBP/SIP expression levels were measured in peripheral blood mononuclear cells from 23 Chinese CLL patients and three healthy donors by western blotting. Correlation analysis was performed to assess associations between CacyBP/SIP expression and clinical stage, chromosome abnormalities and zeta-chain-associated protein kinase 70 (ZAP-70) expression. We silenced CacyBP/SIP expression in MEC-1 cells using a lentivirus system and analyzed cell vitality, cell cycle and tumorigenicity. Apoptosis was also analyzed following the upregulation of CacyBP/SIP expression in MEC-1 cells. RESULTS Downregulation of CacyBP/SIP expression in CLL patients was negatively correlated with CLL clinical stage, but not with patient sex, age, del(13q14) or del(17q-) presence, or ZAP-70 expression. CacyBP/SIP silencing significantly enhanced cell proliferation and tumorigenicity. CacyBP/SIP silencing promoted accumulation of cells in S phase by upregulation of β-catenin, cyclin D1 and cyclin E, and downregulation of p21. Moreover, CacyBP/SIP overexpression facilitated CLL apoptosis through the activation of pro-caspase-3. CONCLUSION CacyBP/SIP is a useful indicator of CLL disease processes and plays an important role in sustaining the balance of cell proliferation and apoptosis.
Collapse
|
16
|
Feng J, Dai Z, Zhang Y, Meng L, Ye J, Ma X. Alteration of Gene Expression Profile in Kidney of Spontaneously Hypertensive Rats Treated with Protein Hydrolysate of Blue Mussel (Mytilus edulis) by DNA Microarray Analysis. PLoS One 2015; 10:e0142016. [PMID: 26517713 PMCID: PMC4627735 DOI: 10.1371/journal.pone.0142016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 10/15/2015] [Indexed: 12/19/2022] Open
Abstract
Marine organisms are rich sources of bioactive components, which are often reported to have antihypertensive effects. However, the underlying mechanisms have yet to be fully identified. The aim of this study was to investigate the antihypertensive effect of enzymatic hydrolysis of blue mussel protein (HBMP) in rats. Peptides with in vitro ACE inhibitory activity were purified from HBMP by ultrafiltration, gel filtration chromatography and reversed-phase high performance liquid chromatography. And the amino acid sequences of isolated peptides were estimated to be Val-Trp, Leu-Gly-Trp, and Met-Val-Trp-Thr. To study its in vivo action, spontaneously hypertensive rats (SHRs) were orally administration with high- or low-dose of HBMP for 28 days. Major components of the renin-angiotensin (RAS) system in serum of SHRs from different groups were analyzed, and gene expression profiling were performed in the kidney of SHRs, using the Whole Rat Genome Oligonucleotide Microarray. Results indicated although genes involved in RAS system were not significantly altered, those related to blood coagulation system, cytokine and growth factor, and fatty acids metabolism were remarkablely changed. Several genes which were seldom reported to be implicated in pathogenesis of hypertension also showed significant expression alterations after oral administration of HBMP. These data provided valuable information for our understanding of the molecular mechanisms that underlie the potential antihypertensive activities of HBMP, and will contribute towards increased value-added utilization of blue mussel protein.
Collapse
Affiliation(s)
- Junli Feng
- Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
| | - Zhiyuan Dai
- Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
- * E-mail:
| | - Yanping Zhang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China
| | - Lu Meng
- Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
| | - Jian Ye
- Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
| | - Xuting Ma
- Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
| |
Collapse
|
17
|
SHP-1 is a negative regulator of epithelial-mesenchymal transition in hepatocellular carcinoma. Oncogene 2015; 34:5252-63. [PMID: 25619838 DOI: 10.1038/onc.2014.445] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 11/24/2014] [Accepted: 12/05/2014] [Indexed: 12/17/2022]
Abstract
Epithelial-to-mesenchymal transition (EMT) is well known to involve in tumor invasion and metastasis. Src homology region 2 domain-containing phosphatase 1 (SHP-1) functions as a potent tumor suppressor and also acts as a negative regulator of p-STAT3(Tyr705) oncogenic signaling. However, little is known about the molecular mechanism(s) through which SHP-1 regulates EMT during hepatocellular carcinoma (HCC) progression. Here we first reported that endogenous SHP-1 protein levels were significantly downregulated in cells with mesenchymal characteristics and negatively correlated with p-STAT3(Tyr705) and vimentin but positively correlated with E-cadherin. SHP-1 overexpression abolished transforming growth factor-β1 (TGF-β1)-induced p-STAT3(Tyr705) and EMT, as well inhibited migration and invasion but further rescued by signal transducer and activator of transcription factor 3 (STAT3) overexpression. Depletion of SHP-1 could induce a more increase in TGF-β1-induced p-STAT3(Tyr-705) and EMT characteristics, further supporting the mechanism that suppression of TGF-β1-induced EMT is dependent on SHP-1-mediated STAT3 inactivation. Constitutively overexpressed SHP-1 tyrosine phosphatase activity by D61A-mutated SHP-1 markedly reduced TGF-β1-induced p-STAT3(Tyr705) and EMT features but was not altered by C453S catalytic-dead mutant SHP-1. Consequently, SHP-1 acted as a powerful suppressor in preventing EMT by exerting its tyrosine phosphatase activity that directly downregulated p-STAT3(Tyr705). Most notably, we discovered a novel SHP-1 agonist SC-43 better than sorafenib to exert more potent anti-EMT effects in vitro as well as anti-metastatic growth in vivo. In conclusion, SHP-1 is a potent suppressor of HCC EMT and metastasis, thus highlighting that SC-43-SHP-1 axis may serve as a potential therapeutic target that antagonized p-STAT3(Tyr705) and thereby prevented HCC EMT and metastasis.
Collapse
|
18
|
Adenovirus-mediated IL-24 confers radiosensitization to human lung adenocarcinoma in vitro and in vivo. Mol Biol Rep 2014; 42:1069-80. [PMID: 25479732 DOI: 10.1007/s11033-014-3846-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 11/19/2012] [Indexed: 01/10/2023]
Abstract
The current paper aims to study the effect of adenovirus-mediated IL-24 (Ad-IL-24) on human lung adenocarcinoma in vitro and in vivo and determine its possible mechanism of action. The growth-suppressing and apoptosis-inducing effects of Ad-IL-24, radiotherapy, and Ad-IL-24+ radiotherapy (hereinafter referred to as the joint group) on SPC-A1 lung carcinoma cells were assessed by using 3-(4,5-dimethyliazolyl-2)-2,5-diphnyltetrazolium bromide and flow cytometry. A human lung model was established with SPC-A1 cells in nude mice. Groups of mice were subjected to multi-point injections to their tumors. Gross tumor volumes were measured dynamically. The ratios of tumor suppression and radiosensitization effect were evaluated according to the method of probability sum Q values. The expressions of Bax, Bcl-2, Survivin, and Caspase-3 in tumor samples were detected by immunohistochemistry. The ratios of inhibition and apoptosis in the joint group were higher than those in the individual Ad-IL-24 and radiotherapy groups. In vitro, the joint group suppressed tumor growth conspicuously, showing a weight inhibition rate of about 64 %. The expressions of FasL, Bax and Caspase-3 were upregulated in the joint group, while the expressions of Cox,Bcl-2,VEGF,CD34 and Survivin were downregulated. The current study proves that Ad-IL-24 suppresses growth of SPC-A1 cells both in vitro and in vivo. Its functions appear to be related to cell apoptosis and antiangiogenesis.
Collapse
|
19
|
Fernandez-Ruiz R, Vieira E, Garcia-Roves PM, Gomis R. Protein tyrosine phosphatase-1B modulates pancreatic β-cell mass. PLoS One 2014; 9:e90344. [PMID: 24587334 PMCID: PMC3938680 DOI: 10.1371/journal.pone.0090344] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 02/02/2014] [Indexed: 12/31/2022] Open
Abstract
Protein tyrosine phosphatase 1B (PTP1B) is a negative regulator of the insulin signalling pathway. It has been demonstrated that PTP1B deletion protects against the development of obesity and Type 2 Diabetes, mainly through its action on peripheral tissues. However, little attention has been paid to the role of PTP1B in β-cells. Therefore, our aim was to study the role of PTP1B in pancreatic β-cells. Silencing of PTP1B expression in a pancreatic β-cell line (MIN6 cells) reveals the significance of this endoplasmic reticulum bound phosphatase in the regulation of cell proliferation and apoptosis. Furthermore, the ablation of PTP1B is able to regulate key proteins involved in the proliferation and/or apoptosis pathways, such as STAT3, AKT, ERK1/2 and p53 in isolated islets from PTP1B knockout (PTP1B −/−) mice. Morphometric analysis of pancreatic islets from PTP1B −/− mice showed a higher β-cell area, concomitantly with higher β-cell proliferation and a lower β-cell apoptosis when compared to islets from their respective wild type (WT) littermates. At a functional level, isolated islets from 8 weeks old PTP1B −/− mice exhibit enhanced glucose-stimulated insulin secretion. Moreover, PTP1B −/− mice were able to partially reverse streptozotocin-induced β-cell loss. Together, our data highlight for the first time the involvement of PTP1B in β-cell physiology, reinforcing the potential of this phosphatase as a therapeutical target for the treatment of β-cell failure, a central aspect in the pathogenesis of Type 2 Diabetes.
Collapse
MESH Headings
- Animals
- Apoptosis
- Cell Count
- Cell Line
- Cell Proliferation
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/enzymology
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/pathology
- Endoplasmic Reticulum/chemistry
- Endoplasmic Reticulum/enzymology
- Gene Expression Regulation
- Glucose/metabolism
- Glucose/pharmacology
- Insulin/metabolism
- Insulin Secretion
- Insulin-Secreting Cells/drug effects
- Insulin-Secreting Cells/enzymology
- Insulin-Secreting Cells/pathology
- Male
- Mice
- Mice, Knockout
- Mitogen-Activated Protein Kinase 1/genetics
- Mitogen-Activated Protein Kinase 1/metabolism
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/antagonists & inhibitors
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/genetics
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/metabolism
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/metabolism
- Signal Transduction
- Streptozocin
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
Collapse
Affiliation(s)
- Rebeca Fernandez-Ruiz
- Diabetes and Obesity Research Laboratory, Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain
| | - Elaine Vieira
- Diabetes and Obesity Research Laboratory, Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain
| | - Pablo M. Garcia-Roves
- Diabetes and Obesity Research Laboratory, Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain
| | - Ramon Gomis
- Diabetes and Obesity Research Laboratory, Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
- Hospital Clinic de Barcelona, Barcelona, Spain
- * E-mail:
| |
Collapse
|
20
|
Overexpression of MDA-7/IL-24 as an anticancer cytokine in gene therapy of thyroid carcinoma. JOURNAL OF MEDICAL HYPOTHESES AND IDEAS 2014. [DOI: 10.1016/j.jmhi.2013.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
21
|
Lee KM, Kang HA, Ko CB, Oh EH, Park M, Lee HY, Choi HR, Yun CH, Jung WW, Oh JW, Kang HS. Differential gene expression profiles in spontaneously hypertensive rats induced by administration of enalapril and nifedipine. Int J Mol Med 2012; 31:179-87. [PMID: 23165955 DOI: 10.3892/ijmm.2012.1183] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 10/18/2012] [Indexed: 11/06/2022] Open
Abstract
Enalapril and nifedipine are used as antihypertensive drugs; however, the therapeutic target molecules regulated by enalapril and nifedipine have yet to be fully identified. The aim of this study was to identify novel target genes that are specifically regulated by enalapril and nifedipine in tissues from spontaneously hypertensive rats (SHR) using DNA microarray analysis. We found that administration of SHR with enalapril and nifedipine differentially regulated 33 genes involved in the pathogenesis of cardiovascular diseases. Furthermore, we identified 16 genes that have not previously been implicated in cardiovascular diseases, including interleukin-24 (IL-24). Among them, exogenous administration of IL-24 attenuated the expression of vascular inflammation and hypertension-related genes induced by H2O2 treatment in mouse vascular smooth muscle (MOVAS) cells. This study provides valuable information for the development of novel antihypertensive drugs. In addition, the genes identified may be of use as biomarkers and therapeutic targets for cardiovascular diseases, including hypertension.
Collapse
Affiliation(s)
- Ki-Mo Lee
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500‑757, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
A novel function of RNAs arising from the long terminal repeat of human endogenous retrovirus 9 in cell cycle arrest. J Virol 2012; 87:25-36. [PMID: 23097441 DOI: 10.1128/jvi.01648-12] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The human genome contains approximately 50 copies of the replication-defective human endogenous retrovirus 9 (ERV-9) and thousands of copies of its solitary long term repeat (sLTR) element. While some sLTRs are located upstream of critical genes and have enhancer activity, other sLTRs are located within introns and may be transcribed as RNAs. We found that intronic RNAs arising from U3 sLTRs of ERV-9 were expressed as both sense (S) and antisense (AS) transcripts in all human cells tested but that expression levels differed in malignant versus nonmalignant cells. In nonmalignant cells, AS was expressed at higher levels than S and at higher levels than in malignant cells; in malignant cells, AS was expressed at amounts equivalent to those of S RNA. Critically, U3 AS RNA was found to physically bind to key transcription factors for cellular proliferation, including NF-Y, p53, and sp1, indicating that such RNA transcripts may function as decoy targets or traps for NF-Y and thus inhibit the growth of human cancer cells. Indeed, short U3 oligodeoxynucleotides (ODNs) based on these RNA sequences ably inhibited proliferation of cancer cell lines driven by cyclins B1/B2, the gene targets of NF-Y.
Collapse
|
23
|
Lee KM, Kang HA, Park M, Lee HY, Choi HR, Yun CH, Oh JW, Kang HS. Interleukin-24 attenuates β-glycerophosphate-induced calcification of vascular smooth muscle cells by inhibiting apoptosis, the expression of calcification and osteoblastic markers, and the Wnt/β-catenin pathway. Biochem Biophys Res Commun 2012; 428:50-5. [PMID: 23063979 DOI: 10.1016/j.bbrc.2012.09.145] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 09/29/2012] [Indexed: 01/01/2023]
Abstract
Vascular calcification is a hallmark of cardiovascular disease. Interleukin-24 (IL-24) has been known to suppress tumor progression in a variety of human cancers. However, the role of IL-24 in the pathophysiology of diseases other than cancer is unclear. We investigated the role of IL-24 in vascular calcification. IL-24 was applied to a β-glycerophosphate (β-GP)-induced rat vascular smooth muscle cell (VSMC) calcification model. In this study, IL-24 significantly inhibited β-GP-induced VSMC calcification, as determined by von Kossa staining and calcium content. The inhibitory effect of IL-24 on VSMC calcification was due to the suppression of β-GP-induced apoptosis and expression of calcification and osteoblastic markers. In addition, IL-24 abrogated β-GP-induced activation of the Wnt/β-catenin pathway, which plays a key role in the pathogenesis of vascular calcification. The specificity of IL-24 for the inhibition of VSMC calcification was confirmed by using a neutralizing antibody to IL-24. Our results suggest that IL-24 inhibits β-GP-induced VSMC calcification by inhibiting apoptosis, the expression of calcification and osteoblastic markers, and the Wnt/ β-catenin pathway. Our study may provide a novel mechanism of action of IL-24 in cardiovascular disease and indicates that IL-24 is a potential therapeutic agent in VSMC calcification.
Collapse
Affiliation(s)
- Ki-Mo Lee
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Lee KM, Kang HA, Park M, Lee HY, Song MJ, Ko K, Oh JW, Kang HS. Interleukin-24 Suppresses the Growth of Vascular Smooth Muscle Cells by Inhibiting H 2O 2-Induced Reactive Oxygen Species Production. Pharmacology 2012; 90:332-41. [DOI: 10.1159/000343242] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 09/04/2012] [Indexed: 11/19/2022]
|
25
|
Hadife N, Nemos C, Frippiat JP, Hamadé T, Perrot A, Dalloul A. Interleukin-24 mediates apoptosis in human B-cells through early activation of cell cycle arrest followed by late induction of the mitochondrial apoptosis pathway. Leuk Lymphoma 2012; 54:587-97. [PMID: 22860893 DOI: 10.3109/10428194.2012.717079] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Interleukin (IL)-24 has death-promoting effects on various proliferating cells including B-cells from chronic lymphocytic leukemia (CLL) and germinal center B-cells, but its molecular mechanisms are poorly understood. Using a B-cell differentiation model and mRNA profiling, we found that recombinant (r)IL-24 stimulated genes of the mitochondrial apoptotic pathway (Bax, Bid, Casp8, COX6C, COX7B) after 36 h, whereas the transcription of genes involved in DNA replication and metabolism was inhibited within 6 h. Unexpectedly, insulin-like growth factor 1 (IGF1), a hormone known to promote cell growth, was stimulated by IL-24. Activated B-cells express receptor for IGF1, to which they become sensitized and undergo apoptosis, a mechanism similar in this respect to IL-24-induced cell death. Furthermore, inhibition of the IGF1 pathway reversed the effects of IL-24. IL-24-mediated apoptosis was also antagonized by pifithrin-alpha, an inhibitor of p53 transactivation. Altogether, these results disclose sequential molecular signals generated by IL-24 in activated B-cells.
Collapse
|
26
|
Anti-leukemic activity of dasatinib in both p53(wild-type) and p53(mutated) B malignant cells. Invest New Drugs 2010; 30:417-22. [PMID: 20953816 DOI: 10.1007/s10637-010-9564-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Accepted: 10/03/2010] [Indexed: 12/29/2022]
Abstract
The multi-kinase inhibitor dasatinib induced a variable but significant decrease of viability in both p53(wild-type) (EHEB, JVM-2, JVM-3) and p53(mutated) (MEC-1, MEC-2, BJAB) prolymphocytic B leukemic cells, due to a combination of cell cycle block in G1 and apoptosis. Antibody phospho-kinase array analysis revealed that dasatinib inhibited the phosphorylation of various kinases, including ERK1/2 and p38/MAPK as well as of STAT3 transcription factors, in both p53(wild-type) and p53(mutated) cells. Therefore, dasatinib might offer a novel therapeutic strategy not only for p53(wild-type), but also for p53(mutated) B malignancies that have the worst prognosis and urgently need innovative therapeutic approaches.
Collapse
|
27
|
Rahmani M, Mayo M, Dash R, Sokhi UK, Dmitriev IP, Sarkar D, Dent P, Curiel DT, Fisher PB, Grant S. Melanoma differentiation associated gene-7/interleukin-24 potently induces apoptosis in human myeloid leukemia cells through a process regulated by endoplasmic reticulum stress. Mol Pharmacol 2010; 78:1096-104. [PMID: 20858700 DOI: 10.1124/mol.110.068007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Melanoma differentiation associated gene-7 (mda-7)/interleukin-24 (IL-24), a member of the IL-10 cytokine gene family, preferentially induces cell death in neoplastic epithelial cells types while sparing their normal counterparts. The effects of mda-7/IL-24 in acute myeloid leukemia (AML) cells have not been extensively characterized. Treatment with recombinant GST-MDA-7/IL-24 potently induced apoptosis in diverse myeloid leukemia cell types including U937, HL60, MV4-11, EOL-1, and MLL/ENL cells. MDA-7/IL-24 also markedly induced apoptosis in and suppressed the colony-forming capacity of primary AML blasts but exerted minimal toxicity toward normal CD34(+) hematopoietic progenitor cells. MDA-7/IL-24 lethality was associated with pronounced endoplasmic reticulum (ER) stress induction in leukemia cell lines and primary AML blasts, manifested by the accumulation of growth arrest and DNA damage-inducible protein 34 (GADD34), 78-kDa glucose-regulated protein (GRP78)/BiP, inositol-requiring enzyme 1α (IRE1α), and eukaryotic initiation factor 2α phosphorylation. It is noteworthy that short hairpin RNA (shRNA) knockdown of IRE1α, GADD34, or GRP78/BiP significantly enhanced MDA-7/IL-24-mediated apoptosis, indicating a protective role for these molecules against MDA-7/IL-24 lethality. MDA-7/IL-24 also down-regulated the antiapoptotic protein Mcl-1 and sharply increased expression of the proapoptotic proteins Bim and Noxa. Ectopic Mcl-1 expression or shRNA knockdown of Bim or Noxa significantly attenuated MDA-7/IL-24-mediated leukemia cell death. Finally, knockdown of Bax or Bak significantly reduced MDA-7/IL-24 lethality. Together, these findings indicate that MDA-7/IL-24 potently induces apoptosis in human myeloid leukemia cells through a process regulated by ER stress induction, Mcl-1 down-regulation, and Bim and Noxa up-regulation. They also suggest that MDA-7/IL-24 warrants further investigation in myeloid leukemia.
Collapse
Affiliation(s)
- Mohamed Rahmani
- Department of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Interleukin-24 inhibits the plasma cell differentiation program in human germinal center B cells. Blood 2010; 115:1718-26. [DOI: 10.1182/blood-2009-05-220251] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Abstract
Complex molecular mechanisms control B-cell fate to become a memory or a plasma cell. Interleukin-24 (IL-24) is a class II family cytokine of poorly understood immune function that regulates the cell cycle. We previously observed that IL-24 is strongly expressed in leukemic memory-type B cells. Here we show that IL-24 is also expressed in human follicular B cells; it is more abundant in CD27+ memory B cells and CD5-expressing B cells, whereas it is low to undetectable in centroblasts and plasma cells. Addition of IL-24 to B cells, cultured in conditions shown to promote plasma cell differentiation, strongly inhibited plasma cell generation and immunoglobulin G (IgG) production. By contrast, IL-24 siRNA increased terminal differentiation of B cells into plasma cells. IL-24 is optimally induced by BCR triggering and CD40 engagement; IL-24 increased CD40-induced B-cell proliferation and modulated the transcription of key factors involved in plasma cell differentiation. It also inhibited activation-induced tyrosine phosphorylation of signal transducer and activator of transcription-3 (STAT-3), and inhibited the transcription of IL-10. Taken together, our results indicate that IL-24 is a novel cytokine involved in T-dependent antigen (Ag)–driven B-cell differentiation and suggest its physiologic role in favoring germinal center B-cell maturation in memory B cells at the expense of plasma cells.
Collapse
|
29
|
He M, Liang P. IL-24 transgenic mice: in vivo evidence of overlapping functions for IL-20, IL-22, and IL-24 in the epidermis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2010; 184:1793-8. [PMID: 20061404 DOI: 10.4049/jimmunol.0901829] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
IL-20 and IL-24 share two different heterodimeric receptors consisting of either IL-20R1 or IL-22R1 and a common IL-20R2 subunit, whereas IL-22 signals through IL-22R1/IL-10R2. However, until now, only IL-20 and IL-22 have been proven to play important roles in vivo in the epidermis where all four receptor subunits are expressed. In this study, we show that IL-24 transgenic mice manifest many similar phenotypes to that of IL-20 and IL-22, including neonatal lethality, epidermal hyperplasia, and abnormality in keratinocyte differentiation. These results support a largely redundant role in epidermal functions for IL-20, IL-22, and IL-24, which seem to be IL-22R1 dependent. Moreover, we show that IL-24 transgenic mice exhibit infiltrating macrophages in the dermis with concomitant increases in MCP-1 production from both keratinocytes in the epidermis and immune infiltrates in the adjacent dermal layer below. Furthermore, we demonstrate that the homodimeric IL-20R2 soluble receptor is a potent blocker for IL-24 and can be used to further dissect the crosstalk among the IL-20 family of cytokines in normal development as well as in autoimmune diseases.
Collapse
Affiliation(s)
- Miao He
- Department of Cancer Biology, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | | |
Collapse
|
30
|
Zhou L, Fu P, Huang XR, Liu F, Lai KN, Lan HY. Activation of p53 promotes renal injury in acute aristolochic acid nephropathy. J Am Soc Nephrol 2009; 21:31-41. [PMID: 19892935 DOI: 10.1681/asn.2008111133] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Ingestion of aristolochic acid (AA) can cause AA nephropathy (AAN), in which excessive death of tubular epithelial cells (TECs) characterize the acute phase. AA forms adducts with DNA, which may lead to TEC apoptosis via p53-mediated signaling. We tested this hypothesis both by studying p53-deficient mice and by blocking p53 in TECs with its inhibitor pifithrin-alpha. AA induced acute AAN in wild-type mice, resulting in massive apoptotic and necrotic TEC death and acute renal failure; p53 deficiency or pharmacologic inhibition attenuated this injury. In vitro, AA induced apoptotic and necrotic death of TEC in a time- and dosage-dependent manner, with apoptosis marked by a 10-fold increase in cleaved caspase-3 and terminal deoxynucleotidyl transferase-mediated digoxigenin-deoxyuridine nick-end labeling-positive/Annexin V-positive propidium iodide-negative TECs (all P < 0.001). AA induced dephosphorylation of STAT3 and the subsequent activation of p53 and TEC apoptosis. In contrast, overexpression of STAT3, p53 inhibition, or p53 knockdown with small interfering RNA all attenuated AA-induced TEC apoptosis. Taken together, these results suggest that AA induces TEC death via apoptosis by dephosphorylation of STAT3 and posttranslational activation of p53, supporting the hypothesis that p53 promotes renal injury in acute AAN.
Collapse
Affiliation(s)
- Li Zhou
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, China
| | | | | | | | | | | |
Collapse
|