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Olotu O, Koskenniemi AR, Ma L, Paramonov V, Laasanen S, Louramo E, Bourgery M, Lehtiniemi T, Laasanen S, Rivero-Müller A, Löyttyniemi E, Sahlgren C, Westermarck J, Ventelä S, Visakorpi T, Poutanen M, Vainio P, Mäkelä JA, Kotaja N. Germline-specific RNA helicase DDX4 forms cytoplasmic granules in cancer cells and promotes tumor growth. Cell Rep 2024; 43:114430. [PMID: 38963760 DOI: 10.1016/j.celrep.2024.114430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 05/15/2024] [Accepted: 06/18/2024] [Indexed: 07/06/2024] Open
Abstract
Cancer cells undergo major epigenetic alterations and transcriptomic changes, including ectopic expression of tissue- and cell-type-specific genes. Here, we show that the germline-specific RNA helicase DDX4 forms germ-granule-like cytoplasmic ribonucleoprotein granules in various human tumors, but not in cultured cancer cells. These cancerous DDX4 complexes contain RNA-binding proteins and splicing regulators, including many known germ granule components. The deletion of DDX4 in cancer cells induces transcriptomic changes and affects the alternative splicing landscape of a number of genes involved in cancer growth and invasiveness, leading to compromised capability of DDX4-null cancer cells to form xenograft tumors in immunocompromised mice. Importantly, the occurrence of DDX4 granules is associated with poor survival in patients with head and neck squamous cell carcinoma and higher histological grade of prostate cancer. Taken together, these results show that the germ-granule-resembling cancerous DDX4 granules control gene expression and promote malignant and invasive properties of cancer cells.
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Affiliation(s)
- Opeyemi Olotu
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland
| | - Anna-Riina Koskenniemi
- Department of Pathology, Laboratory Division, Turku University Hospital and University of Turku, 20520 Turku, Finland
| | - Lin Ma
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland
| | - Valeriy Paramonov
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20500 Turku, Finland; Turku Bioscience, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Sini Laasanen
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland
| | - Elina Louramo
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland
| | - Matthieu Bourgery
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland; Centre for Population Health Research, Turku University Hospital and University of Turku, 20520 Turku, Finland
| | - Tiina Lehtiniemi
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland
| | - Samuli Laasanen
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland
| | - Adolfo Rivero-Müller
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Eliisa Löyttyniemi
- Department of Biostatistics, University of Turku and Turku University Hospital, 20520 Turku, Finland
| | - Cecilia Sahlgren
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20500 Turku, Finland; Turku Bioscience, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Jukka Westermarck
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland; Turku Bioscience, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Sami Ventelä
- Turku Bioscience, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Department for Otorhinolaryngology, Head, and Neck Surgery, University of Turku and Turku University Hospital, 20520 Turku, Finland
| | - Tapio Visakorpi
- Faculty of Medicine and Health Technology, Tampere University and Tays Cancer Center, Tampere University Hospital, 33520 Tampere, Finland; Fimlab Laboratories, Tampere University Hospital, 33520 Tampere, Finland
| | - Matti Poutanen
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland; Turku Center for Disease Modeling, University of Turku, 20520 Turku, Finland; FICAN West Cancer Center, University of Turku, Turku University Hospital, 20500 Turku, Finland
| | - Paula Vainio
- Department of Pathology, Laboratory Division, Turku University Hospital and University of Turku, 20520 Turku, Finland
| | - Juho-Antti Mäkelä
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland
| | - Noora Kotaja
- Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, 20520 Turku, Finland.
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2
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Cokelaere C, Dok R, Cortesi EE, Zhao P, Sablina A, Nuyts S, Derua R, Janssens V. TIPRL1 and its ATM-dependent phosphorylation promote radiotherapy resistance in head and neck cancer. Cell Oncol (Dordr) 2024; 47:793-818. [PMID: 37971644 DOI: 10.1007/s13402-023-00895-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2023] [Indexed: 11/19/2023] Open
Abstract
PURPOSE TIPRL1 (target of rapamycin signaling pathway regulator-like 1) is a known interactor and inhibitor of protein phosphatases PP2A, PP4 and PP6 - all pleiotropic modulators of the DNA Damage Response (DDR). Here, we investigated the role of TIPRL1 in the radiotherapy (RT) response of Head and Neck Squamous Cell Carcinoma (HNSCC). METHODS TIPRL1 mRNA (cBioportal) and protein expression (immunohistochemistry) in HNSCC samples were linked with clinical patient data. TIPRL1-depleted HNSCC cells were generated by CRISPR/Cas9 editing, and effects on colony growth, micronuclei formation (microscopy), cell cycle (flow cytometry), DDR signaling (immunoblots) and proteome (mass spectrometry) following RT were assessed. Mass spectrometry was used for TIPRL1 phosphorylation and interactomics analysis in irradiated cells. RESULTS TIPRL1 expression was increased in tumor versus non-tumor tissue, with high tumoral TIPRL1 expression associating with lower locoregional control and decreased survival of RT-treated patients. TIPRL1 deletion in HNSCC cells resulted in increased RT sensitivity, a faster but prolonged cell cycle arrest, increased micronuclei formation and an altered proteome-wide DDR. Upon irradiation, ATM phosphorylates TIPRL1 at Ser265. A non-phospho Ser265Ala mutant could not rescue the increased radiosensitivity phenotype of TIPRL1-depleted cells. While binding to PP2A-like phosphatases was confirmed, DNA-dependent protein kinase (DNA-PKcs), RAD51 recombinase and nucleosomal histones were identified as novel TIPRL1 interactors. Histone binding, although stimulated by RT, was adversely affected by TIPRL1 Ser265 phosphorylation. CONCLUSIONS Our findings underscore a clinically relevant role for TIPRL1 and its ATM-dependent phosphorylation in RT resistance through modulation of the DDR, highlighting its potential as a new HNSCC predictive marker and therapeutic target.
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Affiliation(s)
- Célie Cokelaere
- Laboratory of Protein Phosphorylation & Proteomics, Department of Cellular & Molecular Medicine, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
- KU Leuven Cancer Institute (LKI), B-3000, Leuven, Belgium
| | - Rüveyda Dok
- KU Leuven Cancer Institute (LKI), B-3000, Leuven, Belgium
- Laboratory of Experimental Radiotherapy, Department of Oncology, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Emanuela E Cortesi
- Translational Cell & Tissue Research, Department of Imaging & Pathology, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Peihua Zhao
- VIB Laboratory of Mechanisms of Cell Transformation, Department of Oncology, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Anna Sablina
- KU Leuven Cancer Institute (LKI), B-3000, Leuven, Belgium
- VIB Laboratory of Mechanisms of Cell Transformation, Department of Oncology, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Sandra Nuyts
- KU Leuven Cancer Institute (LKI), B-3000, Leuven, Belgium
- Laboratory of Experimental Radiotherapy, Department of Oncology, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Rita Derua
- Laboratory of Protein Phosphorylation & Proteomics, Department of Cellular & Molecular Medicine, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
- SybioMA, Proteomics Core Facility, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Veerle Janssens
- Laboratory of Protein Phosphorylation & Proteomics, Department of Cellular & Molecular Medicine, University of Leuven (KU Leuven), B-3000, Leuven, Belgium.
- KU Leuven Cancer Institute (LKI), B-3000, Leuven, Belgium.
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3
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Routila E, Mahran R, Salminen S, Irjala H, Haapio E, Kytö E, Ventelä S, Petterson K, Routila J, Gidwani K, Leivo J. Identification of stemness-related glycosylation changes in head and neck squamous cell carcinoma. BMC Cancer 2024; 24:443. [PMID: 38600440 PMCID: PMC11005150 DOI: 10.1186/s12885-024-12161-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/21/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND Altered glycosylation is a hallmark of cancer associated with therapy resistance and tumor behavior. In this study, we investigated the glycosylation profile of stemness-related proteins OCT4, CIP2A, MET, and LIMA1 in HNSCC tumors. METHODS Tumor, adjacent normal tissue, and blood samples of 25 patients were collected together with clinical details. After tissue processing, lectin-based glycovariant screens were performed. RESULTS Strong correlation between glycosylation profiles of all four stemness-related proteins was observed in tumor tissue, whereas glycosylation in tumor tissue, adjacent normal tissue, and serum was differential. CONCLUSIONS A mannose- and galactose-rich glycosylation niche associated with stemness-related proteins was identified.
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Affiliation(s)
- E Routila
- Department of Life Technologies, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland.
- InFLAMES Research Flagship, University of Turku, 20014, Turku, Finland.
- FICAN West Cancer Centre, Turku, Finland.
| | - R Mahran
- Department of Life Technologies, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
- FICAN West Cancer Centre, Turku, Finland
- Department of Chemistry, University of Turku, Henrikinkatu 2, 20500, Turku, Finland
| | - S Salminen
- Department of Life Technologies, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
- FICAN West Cancer Centre, Turku, Finland
| | - H Irjala
- Department for Otorhinolaryngology- Head and Neck surgery, University of Turku and Turku University Hospital, Savitehtaankatu 5, 20520, Turku, Finland
| | - E Haapio
- Department for Otorhinolaryngology- Head and Neck surgery, University of Turku and Turku University Hospital, Savitehtaankatu 5, 20520, Turku, Finland
| | - E Kytö
- Department for Otorhinolaryngology- Head and Neck surgery, University of Turku and Turku University Hospital, Savitehtaankatu 5, 20520, Turku, Finland
| | - S Ventelä
- FICAN West Cancer Centre, Turku, Finland
- Department for Otorhinolaryngology- Head and Neck surgery, University of Turku and Turku University Hospital, Savitehtaankatu 5, 20520, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520, Turku, Finland
| | - K Petterson
- Department of Life Technologies, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
| | - J Routila
- FICAN West Cancer Centre, Turku, Finland
- Department for Otorhinolaryngology- Head and Neck surgery, University of Turku and Turku University Hospital, Savitehtaankatu 5, 20520, Turku, Finland
| | - K Gidwani
- Department of Life Technologies, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
| | - J Leivo
- Department of Life Technologies, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
- InFLAMES Research Flagship, University of Turku, 20014, Turku, Finland
- FICAN West Cancer Centre, Turku, Finland
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4
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Nagelli S, Westermarck J. CIP2A coordinates phosphosignaling, mitosis, and the DNA damage response. Trends Cancer 2024; 10:52-64. [PMID: 37793965 DOI: 10.1016/j.trecan.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/18/2023] [Accepted: 09/04/2023] [Indexed: 10/06/2023]
Abstract
Human cancers share requirements for phosphorylation-dependent signaling, mitotic hyperactivity, and survival after DNA damage. The oncoprotein CIP2A (cancerous inhibitor of PP2A) can coordinate all these cancer cell characteristics. In addition to controlling cancer cell phosphoproteomes via inhibition of protein phosphatase PP2A, CIP2A directly interacts with the DNA damage protein TopBP1 (topoisomerase II-binding protein 1). Consequently, CIP2A allows DNA-damaged cells to enter mitosis and is essential for mitotic cells that are defective in homologous recombination (HR)-mediated DNA repair (e.g., BRCA mutants). The CIP2A-TopBP1 complex is also important for clustering fragmented chromosomes at mitosis. Clinically, CIP2A is a disease driver for basal-like triple-negative breast cancer (BL-TNBC) and a promising cancer therapy target across many cancer types.
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Affiliation(s)
- Srikar Nagelli
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland; Institute of Biomedicine and FICANWest Cancer Center, University of Turku, Turku, Finland
| | - Jukka Westermarck
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland; Institute of Biomedicine and FICANWest Cancer Center, University of Turku, Turku, Finland; InFLAMES Research Flagship Center, University of Turku, Turku, Finland.
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5
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Zhang H, Zhu Y, Jin C, Shi L, Xie Y, Sun X, Li P, Zhu X, Dai Q, Yang F, Xie X, Qin L. Oct4 reduction contributes to testicular injury of unilateral testicular torsion in mice model and apoptotic death of Sertoli cells through mediating CIP2A expression. Gene 2023; 860:147214. [PMID: 36690227 DOI: 10.1016/j.gene.2023.147214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/16/2022] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
This study explored the mechanism of ipsilateral testis injury after ipsilateral testicular torsion detorsion (T/D) and the potential testis-protective part of the octamer-binding transcription factor 4 (Oct4)-cancerous inhibitors of protein phosphatase 2A (CIP2A) axis in a T/D animal model and in ischemia-reperfusion (IR)-treated testicular Sertoli TM4 cells. Quantitative Polymerase chain reaction (PCR) and western blot (WB) confirmed the downregulation of both CIP2A and Oct4 expression in the testicular tissue from T/D mice compared with sham-operated mice. T/D model was then established in mice with upregulated Oct4 expression in the testis. Oct4 elevation restored CIP2A expression in testes after T/D treatment. Furthermore, we observed that an increase in Oct4 ameliorated the testicular damage caused by torsion in the testis. Biochemical analysis indicated that T/D treatment increased serum anti-sperm antibody levels, but reduced testosterone levels. Meanwhile, in testicular tissue, reactive oxygen species (ROS), malondialdehyde (MDA), and activity of testicular myeloperoxidase (MPO) enzymes were promoted, while glutathione peroxidase activity (GPx) was decreased by T/D injury. Notably, testicular Oct4 restoration partially counteracted the effect of T/D treatment on these biochemical indices. Hypoxia/reoxygenation (HR) treatment was applied to TM4 cells to mimic TT injury in vitro. A gain-of-function study showed that Oct4 overexpression partly counteracted the promoting role of HR in cell damage, apoptosis, and oxidative stress in TM4 cells. These observations provide novel insights into the possible biochemical mechanism underlying the mediation of the Oct4-CIP2A axis in T/D injury.
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Affiliation(s)
- Haochuan Zhang
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Yiting Zhu
- Department of Second Clinical Medical School, Whenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Chengli Jin
- Department of First Clinical Medical School, Whenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Lingxin Shi
- Department of Second Clinical Medical School, Whenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Ying Xie
- Department of Second Clinical Medical School, Whenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Xinyi Sun
- Department of Second Clinical Medical School, Whenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Peizhen Li
- Department of Second Clinical Medical School, Whenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Xinyi Zhu
- Department of Second Clinical Medical School, Whenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Quanquan Dai
- Department of Internal Medicine, Wenzhou Yongjia County Traditional Chinese Medicine Hospital, Wenzhou, Zhejiang, China.
| | - Fan Yang
- Key Laboratory of Cell Engineering in Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, China; Bio-XInstitutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China; Research Center for Lin He Academician New Medicine, Institutes for Shanghai Pudong Decoding Life, Shanghai, China.
| | - Xiaoxiao Xie
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Le Qin
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
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6
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Hyytiäinen A, Mroueh R, Peltonen J, Wennerstrand P, Mäkitie A, Al-Samadi A, Ventelä S, Salo T. Prognostic histological markers in oral tongue squamous cell carcinoma patients treated with (chemo)radiotherapy. APMIS 2023; 131:142-151. [PMID: 36695633 DOI: 10.1111/apm.13298] [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: 10/17/2022] [Accepted: 01/19/2023] [Indexed: 01/26/2023]
Abstract
Treatment of oral tongue squamous cell carcinoma (OTSCC) frequently includes surgery with postoperative radiotherapy (RT) or chemoradiotherapy (CRT). Resistance to RT or CRT remains a major clinical challenge and highlights the need to identify predictive markers for it. We included 71 OTSCC patients treated with surgery combined with RT or CRT. We evaluated the association between tumor budding, tumor-stroma ratio (TSR), depth of invasion (DOI), tumor-infiltrating lymphocytes (TILs), hypoxia-inducible factor-1alpha (HIF-1alpha) expression, octamer-binding transcription factor 4 (OCT4) expression, high-endothelial venules (HEVs), and disease-free survival (DFS) using uni- and multivariate analyses. No significant association was observed between the different histological and molecular markers (TSR, DOI, TILs, HEV, HIF-1alph, OCT4) and DFS. However, an associative trend between DOI, budding, and DFS was noted. Further studies with larger cohorts are needed to explore the prognostic value of DOI and budding for OTSCC patients treated with postoperative RT or CRT.
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Affiliation(s)
- Aini Hyytiäinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Rayan Mroueh
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland.,Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer and Research, Helsinki, Finland
| | - Johanna Peltonen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Pia Wennerstrand
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Antti Mäkitie
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland.,Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet and Karolinska Hospital, Stockholm, Sweden
| | - Ahmed Al-Samadi
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Sami Ventelä
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Department for Otorhinolaryngology, Head and Neck Surgery, University of Turku and Turku University Hospital, Turku, Finland.,FICAN West Cancer Centre, Turku, Finland
| | - Tuula Salo
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Translational Immunology Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland.,Medical Research Center, Oulu University Hospital, Oulu, Finland.,Department of Pathology, Helsinki University Hospital (HUS), Helsinki, Finland
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7
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Siqueira JM, Heguedusch D, Rodini CO, Nunes FD, Rodrigues MFSD. Mechanisms involved in cancer stem cell resistance in head and neck squamous cell carcinoma. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2023; 6:116-137. [PMID: 37065869 PMCID: PMC10099599 DOI: 10.20517/cdr.2022.107] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/04/2023] [Accepted: 02/08/2023] [Indexed: 04/18/2023]
Abstract
Despite scientific advances in the Oncology field, cancer remains a leading cause of death worldwide. Molecular and cellular heterogeneity of head and neck squamous cell carcinoma (HNSCC) is a significant contributor to the unpredictability of the clinical response and failure in cancer treatment. Cancer stem cells (CSCs) are recognized as a subpopulation of tumor cells that can drive and maintain tumorigenesis and metastasis, leading to poor prognosis in different types of cancer. CSCs exhibit a high level of plasticity, quickly adapting to the tumor microenvironment changes, and are intrinsically resistant to current chemo and radiotherapies. The mechanisms of CSC-mediated therapy resistance are not fully understood. However, they include different strategies used by CSCs to overcome challenges imposed by treatment, such as activation of DNA repair system, anti-apoptotic mechanisms, acquisition of quiescent state and Epithelial-mesenchymal transition, increased drug efflux capacity, hypoxic environment, protection by the CSC niche, overexpression of stemness related genes, and immune surveillance. Complete elimination of CSCs seems to be the main target for achieving tumor control and improving overall survival for cancer patients. This review will focus on the multi-factorial mechanisms by which CSCs are resistant to radiotherapy and chemotherapy in HNSCC, supporting the use of possible strategies to overcome therapy failure.
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Affiliation(s)
- Juliana Mota Siqueira
- Department of Stomatology, Discipline of Oral and Maxillofacial Pathology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil
| | - Daniele Heguedusch
- Department of Stomatology, Discipline of Oral and Maxillofacial Pathology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil
| | - Camila Oliveira Rodini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo 17012-230, Brazil
| | - Fabio Daumas Nunes
- Department of Stomatology, Discipline of Oral and Maxillofacial Pathology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil
| | - Maria Fernanda Setúbal Destro Rodrigues
- Biophotonics Applied to Health Sciences, Nove de Julho University, UNINOVE, São Paulo 01504-001, Brazil
- Correspondence to: PhD. Maria Fernanda Setúbal Destro Rodrigues. Biophotonics Applied to Health Sciences, Nove de Julho University, UNINOVE, Rua Vergueiro, 235/249 - Liberdade, São Paulo 01504-001, Brazil. E-mail:
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8
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Chen B, Hu H, Chen X. From Basic Science to Clinical Practice: The Role of Cancerous Inhibitor of Protein Phosphatase 2A (CIP2A)/p90 in Cancer. Front Genet 2023; 14:1110656. [PMID: 36911405 PMCID: PMC9998691 DOI: 10.3389/fgene.2023.1110656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/03/2023] [Indexed: 03/14/2023] Open
Abstract
Cancerous inhibitor of protein phosphatase 2A (CIP2A), initially reported as a tumor-associated antigen (known as p90), is highly expressed in most solid and hematological tumors. The interaction of CIP2A/p90, protein phosphatase 2A (PP2A), and c-Myc can hinder the function of PP2A toward c-Myc S62 induction, thus stabilizing c-Myc protein, which represents a potential role of CIP2A/p90 in tumorigeneses such as cell proliferation, invasion, and migration, as well as cancer drug resistance. The signaling pathways and regulation networks of CIP2A/p90 are complex and not yet fully understood. Many previous studies have also demonstrated that CIP2A/p90 can be used as a potential therapeutic cancer target. In addition, the autoantibody against CIP2A/p90 in sera may be used as a promising biomarker in the diagnosis of certain types of cancer. In this Review, we focus on recent advances relating to CIP2A/p90 and their implications for future research.
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Affiliation(s)
- Beibei Chen
- Department of Medical Oncology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, China.,Zhengzhou Key Laboratory for Precision Therapy of Gastrointestinal Cancer, Zhengzhou, Henan, China
| | - Huihui Hu
- Department of Medical Oncology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, China.,Zhengzhou Key Laboratory for Precision Therapy of Gastrointestinal Cancer, Zhengzhou, Henan, China
| | - Xiaobing Chen
- Department of Medical Oncology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, China.,Zhengzhou Key Laboratory for Precision Therapy of Gastrointestinal Cancer, Zhengzhou, Henan, China
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9
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Avril D, Foy JP, Bouaoud J, Grégoire V, Saintigny P. Biomarkers of radioresistance in head and neck squamous cell carcinomas. Int J Radiat Biol 2023; 99:583-593. [PMID: 35930497 DOI: 10.1080/09553002.2022.2110301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
PURPOSE Head and neck squamous cell carcinoma (HNSCC) is a major cause of morbidity and mortality. Although HNSCC is mainly caused by tobacco and alcohol consumption, infection by Human Papilloma Virus (HPV) has been also associated with the increasing incidence of oropharyngeal squamous cell carcinomas (OPSCC) during the past decades. HPV-positive HNSCC is characterized by a higher radiosensitivity compared to HPV-negative tumor. While several clinical trials are evaluating de-escaladed radiation doses strategies in HPV-positive HNSCC, molecular mechanisms associated with relative radioresistance in HPV-negative HNSCC are still broadly unknown. Our goal was to review recently proposed biomarkers of radioresistance in this setting, which may be useful for stratifying tumor's patient according to predicted level of radioresistance. CONCLUSIONS most of biomarkers of radioresistance in HPV-negative HNSCC are identified using a hypothesis-driven approach, based on molecular mechanisms known to play a key role during carcinogenesis, compared to an unsupervised data-driven approach regardless the biological rational. DNA repair and hypoxia are the two most widely investigated biological and targetable pathways related to radioresistance in HNSCC. The better understanding of molecular mechanisms and biomarkers of radioresistance in HPV-negative HNSCC could help for the development of radiosensitization strategies, based on targetable biomarkers, in radioresistant tumors as well as de-escalation radiation dose strategies, based on biological level of radioresistance, in radiosensitive tumors.
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Affiliation(s)
- Delphine Avril
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, France
| | - Jean-Philippe Foy
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, France
- Department of Maxillo-Facial Surgery, Sorbonne Université, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Jebrane Bouaoud
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, France
- Department of Maxillo-Facial Surgery, Sorbonne Université, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Vincent Grégoire
- Department of Radiation Oncology, Centre Léon Bérard, Lyon, France
| | - Pierre Saintigny
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, France
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France
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10
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Mireștean CC, Iancu RI, Iancu DPT. p53 Modulates Radiosensitivity in Head and Neck Cancers-From Classic to Future Horizons. Diagnostics (Basel) 2022; 12:diagnostics12123052. [PMID: 36553058 PMCID: PMC9777383 DOI: 10.3390/diagnostics12123052] [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: 09/22/2022] [Revised: 11/08/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
p53, initially considered a tumor suppressor, has been the subject of research related to cancer treatment resistance in the last 30 years. The unfavorable response to multimodal therapy and the higher recurrence rate, despite an aggressive approach, make HNSCC a research topic of interest for improving therapeutic outcomes, even if it is only the sixth most common malignancy worldwide. New advances in molecular biology and genetics include the involvement of miRNA in the control of the p53 pathway, the understanding of mechanisms such as gain/loss of function, and the development of different methods to restore p53 function, especially for HPV-negative cases. The different ratio between mutant p53 status in the primary tumor and distant metastasis originating HNSCC may serve to select the best therapeutic target for activating an abscopal effect by radiotherapy as a "booster" of the immune system. P53 may also be a key player in choosing radiotherapy fractionation regimens. Targeting any pathway involving p53, including tumor metabolism, in particular the Warburg effect, could modulate the radiosensitivity and chemo-sensitivity of head and neck cancers.
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Affiliation(s)
- Camil Ciprian Mireștean
- Department of Oncology and Radiotherapy, University of Medicine and Pharmacy Craiova, 200349 Craiova, Romania
- Department of Surgery, Railways Clinical Hospital Iasi, 700506 Iași, Romania
| | - Roxana Irina Iancu
- Oral Pathology Department, Faculty of Dental Medicine, “Gr. T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania
- Department of Clinical Laboratory, “St. Spiridon” Emergency Universitary Hospital, 700111 Iași, Romania
- Correspondence: ; Tel.: +40-232-301-603
| | - Dragoș Petru Teodor Iancu
- Oncology and Radiotherapy Department, Faculty of Medicine, “Gr. T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania
- Department of Radiation Oncology, Regional Institute of Oncology, 700483 Iași, Romania
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11
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Koukourakis IM, Tiniakos D, Kouloulias V, Zygogianni A. The molecular basis of immuno-radiotherapy. Int J Radiat Biol 2022; 99:715-736. [PMID: 36383201 DOI: 10.1080/09553002.2023.2144960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE Radiotherapy (RT) and immunotherapy are powerful anti-tumor treatment modalities. Experimental research has demonstrated an important interplay between the cytotoxic effects of RT and the immune system. This systematic review provides an overview of the basics of anti-tumor immunity and focuses on the mechanisms underlying the interplay between RT and immune anti-tumor response that set the molecular basis of immuno-RT. CONCLUSIONS An 'immunity acquired equilibrium' mimicking tumor dormancy can be achieved post-irradiation treatment, with the balance shifted toward tumor eradication or regrowth when immune cells' cytotoxic effects or cancer proliferation rate prevail, respectively. RT has both immunosuppressive and immune-enhancing properties. The latter effect is also known as radio-vaccination. Its mechanisms involve up- or down-regulation of membrane molecules, such as PD-L1, HLA-class-I, CD80/86, CD47, and Fas/CD95, that play a vital role in immune checkpoint pathways and increased cytokine expression (e.g. INFα,β,γ, IL1,2, and TNFα) by cancer or immune cells. Moreover, the interactions of radiation with the tumor microenvironment (fibroblasts, tumor-infiltrating lymphocytes, monocytes, and dendritic cells are also an important component of radio-vaccination. Thus, RT may have anti-tumor vaccine properties, whose sequels can be exploited by immunotherapy agents to treat different cancer subtypes effectively.
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Affiliation(s)
- Ioannis M. Koukourakis
- Radiation Oncology Unit, First Department of Radiology, Medical School, Aretaieion Hospital, National and Kapodistrian University of Athens (NKUOA), Athens, Greece
| | - Dina Tiniakos
- Department of Pathology, Aretaieion University Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK
| | - Vassilis Kouloulias
- Radiation Oncology Unit, Second Department of Radiology, School of Medicine, Rimini 1, National and Kapodistrian University of Athens, Athens, Greece
| | - Anna Zygogianni
- Radiation Oncology Unit, First Department of Radiology, Medical School, Aretaieion Hospital, National and Kapodistrian University of Athens (NKUOA), Athens, Greece
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12
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Oct4 facilitates chondrogenic differentiation of mesenchymal stem cells by mediating CIP2A expression. Cell Tissue Res 2022; 389:11-21. [PMID: 35435493 DOI: 10.1007/s00441-022-03619-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/25/2022] [Indexed: 12/15/2022]
Abstract
Bone development and cartilage formation require strict modulation of gene expression for mesenchymal stem cells (MSCs) to progress through their differentiation stages. Octamer-binding transcription factor 4 (Oct4) expression is generally restricted to developing embryonic pluripotent cells, but its role in chondrogenic differentiation (CD) of MSCs remains unclear. We therefore investigated the role of Oct4 in CD using a microarray, quantitative real-time polymerase chain reaction, and western blotting. The expression of Oct4 was elevated when the CD of cultured MSCs was induced. Silencing Oct4 damaged MSC growth and proliferation and decreased CD, indicated by decreased cartilage matrix formation and the expression of Col2a1, Col10a1, Acan, and Sox9. We found a positive correlation between the expression of CIP2A, a natural inhibitor of protein phosphatase 2A (PP2A) and that of Oct4. Cellular inhibitor of PP2A (CIP2A) expression gradually increased after CD. Overexpression of CIP2A in MSCs with Oct4 depletion promoted cartilage matrix deposition as well as Col2a1, Col10a1, Acan, and Sox9 expression. The chondrogenic induction triggered c-Myc, Akt, ERK, and MEK phosphorylation and upregulated c-Myc and mTOR expression, which was downregulated upon Oct4 knockdown and restored by CIP2A overexpression. These findings indicated that Oct4 functions as an essential chondrogenesis regulator, partly via the CIP2A/PP2A pathway.
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Routila J, Qiao X, Weltner J, Rantala JK, Carpén T, Hagström J, Mäkitie A, Leivo I, Ruuskanen M, Söderlund J, Rintala M, Hietanen S, Irjala H, Minn H, Westermarck J, Ventelä S. Cisplatin overcomes radiotherapy resistance in OCT4-expressing head and neck squamous cell carcinoma. Oral Oncol 2022; 127:105772. [PMID: 35245886 DOI: 10.1016/j.oraloncology.2022.105772] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Cisplatin is combined with radiotherapy for advanced head and neck squamous cell carcinoma (HNSCC). While providing a beneficial effect on survival, it also causes side effects and thus is an important target when considering treatment de-escalation. Currently, there are no biomarkers to predict its patient-selective therapeutic utility. In this study, we examined the role of the stem cell factor OCT4 as a potential biomarker to help clinicians stratify HNSCC patients between radiotherapy and chemoradiotherapy. MATERIALS AND METHODS OCT4 immunohistochemical staining of a population-validated tissue microarray (PV-TMA) (n = 166) representative of a standard HNSCC patients was carried out, and 5-year survival was analyzed. The results were validated using ex vivo drug sensitivity analysis of HNSCC tumor samples, and further cross-validated in independent oropharyngeal (n = 118), nasopharyngeal (n = 170), and vulvar carcinoma (n = 95) clinical datasets. In vitro, genetically modified, patient-derived HNSCC cells were used. RESULTS OCT4 expression in HNSCC tumors was associated with radioresistance. However, combination therapy with cisplatin was found to overcome thisradioresistance in OCT4-expressing HNSCC tumors. The results were validated by using several independent patient cohorts. Furthermore, CRISPRa-based OCT4 overexpression in the HNSCC cell line resulted in apoptosis resistance, and cisplatin was found to downregulate OCT4 protein expression in vitro. Ex vivo drug sensitivity analysis of HNSCC tumors confirmed the association between OCT4 expression and cisplatin sensitivity. CONCLUSION This study introduces OCT4 immunohistochemistry as a simple and cost-effective diagnostic approach for clinical practice to identify HNSCC patients benefitting from radiosensitization by cisplatin using either full or reduced dosing.
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Affiliation(s)
- Johannes Routila
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland; Department for Otorhinolaryngology - Head and Neck Surgery, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20521 Turku, Finland
| | - Xi Qiao
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Jere Weltner
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, SE-14186 Stockholm, Sweden and Division of Obstetrics and Gynecology, Karolinska Universitetssjukhuset, SE-14186 Stockholm, Sweden
| | - Juha K Rantala
- MISVIK Biology Ltd, Karjakatu 35 B, 20520 Turku, Finland
| | - Timo Carpén
- Department for Otorhinolaryngology - Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, P.O.Box 263, FI-00029 HUS Helsinki, Finland
| | - Jaana Hagström
- Department of Oral Pathology and Radiology, University of Turku, Turku, Finland
| | - Antti Mäkitie
- Department for Otorhinolaryngology - Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, P.O.Box 263, FI-00029 HUS Helsinki, Finland
| | - Ilmo Leivo
- Department of Oral Pathology and Radiology, University of Turku, Turku, Finland; Institute of Biomedicine, Pathology, University of Turku, Kiinamyllynkatu 10 D, 20520 Turku, Finland
| | - Miia Ruuskanen
- Department for Otorhinolaryngology - Head and Neck Surgery, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20521 Turku, Finland
| | - Jenni Söderlund
- Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
| | - Marjut Rintala
- Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
| | - Sakari Hietanen
- Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland; FICAN West Cancer Centre, Turku, Finland
| | - Heikki Irjala
- Department for Otorhinolaryngology - Head and Neck Surgery, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20521 Turku, Finland
| | - Heikki Minn
- FICAN West Cancer Centre, Turku, Finland; Department of Oncology and Radiotherapy, University of Turku and Turku University Hospital, Turku, Finland
| | - Jukka Westermarck
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland; Biomedical Institute, University of Turku, Kiinamyllynkatu 10, 20520 Turku, Finland; FICAN West Cancer Centre, Turku, Finland
| | - Sami Ventelä
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland; Department for Otorhinolaryngology - Head and Neck Surgery, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20521 Turku, Finland; FICAN West Cancer Centre, Turku, Finland.
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14
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Tarek MM, Yahia A, El-Nakib MM, Elhefnawi M. Integrative assessment of CIP2A overexpression and mutational effects in human malignancies identifies possible deleterious variants. Comput Biol Med 2021; 139:104986. [PMID: 34739970 DOI: 10.1016/j.compbiomed.2021.104986] [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: 05/28/2021] [Revised: 10/23/2021] [Accepted: 10/24/2021] [Indexed: 10/19/2022]
Abstract
KIAA1524 is the gene encoding the human cancerous inhibitor of PP2A (CIP2A) protein which is regarded as a novel target for cancer therapy. It is overexpressed in 65%-90% of tissues in almost all studied human cancers. CIP2A expression correlates with cancer progression, disease aggressivity in lung cancer besides poor survival and resistance to chemotherapy in breast cancer. Herein, a pan-cancer analysis of public gene expression datasets was conducted showing significant upregulation of CIP2A in cancerous and metastatic tissues. CIP2A overexpression also correlated with poor survival of cancer patients. To determine the non-coding variants associated with CIP2A overexpression, 5'UTR and 3'UTR variants were annotated and scored using RegulomeDB and Enformer deep learning model. The 5'UTR variants rs1239349555, rs1576326380, and rs1231839144 were predicted to be potential regulators of CIP2A overexpression scoring best on RegulomeDB annotations with a high "2a" rank of supporting experimental data. These variants also scored the highest on Enformer predictions. Analysis of the 3'UTR variants of CIP2A predicted rs56255137 and rs58758610 to alter binding sites of hsa-miR-500a-5 and (hsa-miR-3671, hsa-miR-5692a) respectively. Both variants were also found in linkage disequilibrium with rs11709183 and rs147863209 respectively at r2 ≥ 0.8. The aforementioned variants were found to be eQTL hits significantly associated with CIP2A overexpression. Further, analysis of rs11709183 and rs147863209 revealed a high "2b" rank on RegulomeDB annotations indicating a probable effect on DNAse transcription factors binding. The MuTarget analysis indicated that somatic mutations in TP53 are significantly associated with upregulated CIP2A in human cancers. Analysis of missense SNPs on CIP2A solved structure predicted seven deleterious effects. Four of these variants were also predicted as structurally and functionally destabilizing to CIP2A including; rs375108755, rs147942716, rs368722879, and rs367941403. Variant rs1193091427 was predicted as a potential intronic splicing mutation that might be responsible for the novel CIP2A variant (NOCIVA) in multiple myeloma. Finally, Enrichment of the Wnt/β-catenin pathway within the CIP2A regulatory gene network suggested potential of therapeutic combinations between FTY720 with Wnt/β-catenin, Plk1 and/or HDAC inhibitors to downregulate CIP2A which has been shown to be essential for the survival of different cancer cell lines.
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Affiliation(s)
- Mohammad M Tarek
- Bioinformatics Department, Armed Forces College of Medicine (AFCM) Cairo, Egypt.
| | - Ahmed Yahia
- Otolaryngology Department, Armed Forces College of Medicine (AFCM) Cairo, Egypt
| | | | - Mahmoud Elhefnawi
- Biomedical Informatics and Chemo-Informatics Group, Centre of Excellence for Medical Research, Informatics and Systems Department, National Research Centre, Cairo, Egypt
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15
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Zeng R, Jin C, Zheng C, Li S, Qian S, Pan J, Wang L, Zhao J, Qin L. OCT4 Represses Inflammation and Cell Injury During Orchitis by Regulating CIP2A Expression. Front Cell Dev Biol 2021; 9:683209. [PMID: 34513828 PMCID: PMC8427512 DOI: 10.3389/fcell.2021.683209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/06/2021] [Indexed: 11/14/2022] Open
Abstract
Octamer-binding transcription factor 4 (OCT4) and cancerous inhibitor of protein phosphatase 2A (CIP2A) are upregulated in testicular cancer and cell lines. However, its contribution to orchitis (testicular inflammation) is unclear and was thus, investigated herein. Cell-based experiments on a lipopolysaccharide (LPS)-induced orchitis mouse model revealed robust inflammation, apoptotic cell death, and redox disorder in the Leydig (interstitial), Sertoli (supporting), and, germ cells. Meanwhile, real-time quantitative PCR revealed low OCT4 and CIP2A levels in testicular tissue and LPS-stimulated cells. A gain-of-function study showed that OCT4 overexpression not only increased CIP2A expression but also repressed LPS-induced inflammation, apoptosis, and redox disorder in the aforementioned cells. Furthermore, the re-inhibition of CIP2A expression by TD-19 in OCT4-overexpressing cells counteracted the effects of OCT4 overexpression on inflammation, apoptosis, and redox equilibrium. In addition, our results indicated that the Keap1-Nrf2-HO-1 signaling pathway was mediated by OCT4 and CIP2A. These findings provide insights into the potential mechanism underlying OCT4- and CIP2A-mediated testicular inflammation.
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Affiliation(s)
- Ruifeng Zeng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chengli Jin
- Department of First Clinical Medical School, Wenzhou Medical University, Wenzhou, China
| | - Chuchu Zheng
- Department of Second Clinical Medical School, Wenzhou Medical University, Wenzhou, China
| | - Shaoqi Li
- Department of Second Clinical Medical School, Wenzhou Medical University, Wenzhou, China
| | - Siyue Qian
- Department of Second Clinical Medical School, Wenzhou Medical University, Wenzhou, China
| | - Jingsa Pan
- Department of Second Clinical Medical School, Wenzhou Medical University, Wenzhou, China
| | - Lvhe Wang
- Department of Second Clinical Medical School, Wenzhou Medical University, Wenzhou, China
| | - Junfeng Zhao
- Department of Pediatric Surgery, Ningbo Women and Children's Hospital, Wenzhou, China
| | - Le Qin
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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16
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Routila J, Suvila K, Grénman R, Leivo I, Westermarck J, Ventelä S. Cancer cell line microarray as a novel screening method for identification of radioresistance biomarkers in head and neck squamous cell carcinoma. BMC Cancer 2021; 21:868. [PMID: 34320941 PMCID: PMC8320194 DOI: 10.1186/s12885-021-08618-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 07/15/2021] [Indexed: 11/23/2022] Open
Abstract
Background Currently, no clinically useful biomarkers for radioresistance are available in head and neck squamous cell carcinoma (HNSCC). This study assesses the usefulness of Cell Line Microarray (CMA) method to enhance immunohistochemical screening of potential immunohistochemical biomarkers for radioresistance in HNSCC cell lines. Methods Twenty-nine HNSCC cell lines were cultured, cell pellets formalin-fixed, paraffin-embedded, and arrayed. Radioresistance features of the cell lines were combined to immunohistochemical stains for p53, NDFIP1, EGFR, stem cell marker Oct4, and PP2A inhibitor CIP2A. Results Expression of p53, EGFR or CIP2A did not indicate intrinsic radioresistance in vitro. Stem cell marker Oct4 nuclear positivity and NDFIP1 nuclear positivity was correlated with increased intrinsic radioresistance. Conclusion The usefulness of CMA in analysis of HNSCC cell lines and discovery of biomarkers is demonstrated. CMA is very well adapted to both testing of antibodies in a large panel of cell lines as well as correlating staining results with other cell line characteristics. In addition, CMA-based antibody screening proved an efficient and relatively simple method to identify potential radioresistance biomarkers in HNSCC. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08618-6.
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Affiliation(s)
- Johannes Routila
- Turku Bioscience Centre, University of Turku and Åbo Akademi university, Turku, Finland.,Department for Otorhinolaryngology - Head and Neck Surgery, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, 20521, Turku, Finland.,Department for Otorhinolaryngology, Satakunta Central Hospital, Pori, Finland
| | - Karri Suvila
- Turku Bioscience Centre, University of Turku and Åbo Akademi university, Turku, Finland
| | - Reidar Grénman
- Department for Otorhinolaryngology - Head and Neck Surgery, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - Ilmo Leivo
- Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
| | - Jukka Westermarck
- Turku Bioscience Centre, University of Turku and Åbo Akademi university, Turku, Finland.,Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
| | - Sami Ventelä
- Turku Bioscience Centre, University of Turku and Åbo Akademi university, Turku, Finland. .,Department for Otorhinolaryngology - Head and Neck Surgery, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, 20521, Turku, Finland. .,Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland.
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Cancer stem cell phosphatases. Biochem J 2021; 478:2899-2920. [PMID: 34319405 DOI: 10.1042/bcj20210254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/15/2022]
Abstract
Cancer stem cells (CSCs) are involved in the initiation and progression of human malignancies by enabling cancer tissue self-renewal capacity and constituting the therapy-resistant population of tumor cells. However, despite the exhausting characterization of CSC genetics, epigenetics, and kinase signaling, eradication of CSCs remains an unattainable goal in most human malignancies. While phosphatases contribute equally with kinases to cellular phosphoregulation, our understanding of phosphatases in CSCs lags severely behind our knowledge about other CSC signaling mechanisms. Many cancer-relevant phosphatases have recently become druggable, indicating that further understanding of the CSC phosphatases might provide novel therapeutic opportunities. This review summarizes the current knowledge about fundamental, but yet poorly understood involvement of phosphatases in the regulation of major CSC signaling pathways. We also review the functional roles of phosphatases in CSC self-renewal, cancer progression, and therapy resistance; focusing particularly on hematological cancers and glioblastoma. We further discuss the small molecule targeting of CSC phosphatases and their therapeutic potential in cancer combination therapies.
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Oct4 confers stemness and radioresistance to head and neck squamous cell carcinoma by regulating the homologous recombination factors PSMC3IP and RAD54L. Oncogene 2021; 40:4214-4228. [PMID: 34079088 PMCID: PMC8211562 DOI: 10.1038/s41388-021-01842-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/29/2021] [Accepted: 05/13/2021] [Indexed: 02/06/2023]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is often being diagnosed at an advanced stage, conferring a poor prognosis. The probability of local tumor control after radiotherapy depends on the eradication of cancer stem cells (CSCs) with activated DNA repair. This study provides evidence that the CSC-related transcription factor Oct4 contributes to HNSCC radioresistance by regulating DNA damage response and the CSC phenotype. Knockdown of Oct4 A isoform reduced self-renewal capacity in HNSCC and led to partial tumor cell radiosensitization caused by transcriptional downregulation of the cell cycle checkpoint kinases CHK1 and WEE1 and homologous recombination (HR) repair genes PSMC3IP and RAD54L. Besides, PARP inhibition with Olaparib selectively radiosensitized Oct4 A knockout, but not wild-type HNSCC cells. This finding links Oct4 A to the HR-mediated DNA repair mechanisms. In turn, knockdown of PSMC3IP and RAD54L reduced the HNSCC self-renewal capacity and clonogenic cell survival after irradiation, suggesting the interplay between DNA repair and the CSC phenotype. Similar to the effect of Oct4 knockdown, overexpression of Oct4 also resulted in significant HNSCC radiosensitization and increased DNA damage, suggesting that Oct4-dependent regulation of DNA repair depends on its fine-tuned expression. In line with this observation, HNSCC patients with high and low nuclear Oct4 expression at the invasive tumor front exhibited better loco-regional tumor control after postoperative radio(chemo)therapy compared to the intermediate expression subgroup. Thus, we found that the Oct4-driven transcriptional program plays a critical role in regulating HNSCC radioresistance, and a combination of radiotherapy with PARP inhibitors may induce synthetic lethality in Oct4-deregulated tumors.
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Routila J, Leivo I, Minn H, Westermarck J, Ventelä S. Evaluation of prognostic biomarkers in a population-validated Finnish HNSCC patient cohort. Eur Arch Otorhinolaryngol 2021; 278:4575-4585. [PMID: 33582846 PMCID: PMC8486716 DOI: 10.1007/s00405-021-06650-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/27/2021] [Indexed: 12/31/2022]
Abstract
Introduction Prognostic biomarkers and novel therapeutic approaches have been slow to emerge in the treatment of head and neck squamous cell carcinoma (HNSCC). In this study, an HNSCC patient cohort is created and performance of putative prognostic biomarkers investigated in a population-validated setting. The overall goal is to develop a novel way to combine biomarker analyses with population-level clinical data on HNSCC patients and thus to improve the carryover of biomarkers into clinical practice. Materials and methods To avoid selection biases in retrospective study design, all HNSCC patients were identified and corresponding clinical data were collected from the Southwest Finland geographical area. A particular emphasis was laid on avoiding potential biases in sample selection for immunohistochemical staining analyses. Staining results were evaluated for potential prognostic resolution. Results After comprehensive evaluation, the patient cohort was found to be representative of the background population in terms of clinical characteristics such as patient age and TNM stage distribution. A negligible drop-out of 1.3% (6/476) was observed during the first follow-up year. By immunohistochemical analysis, the role of previously implicated HNSCC biomarkers (p53, EGFR, p16, CIP2A, Oct4, MET, and NDFIP1) was investigated. Discussion Our exceptionally representative patient material supports the use of population validation to improve the applicability of results to real-life situations. The failure of the putative prognostic biomarkers emphasizes the need for controlling bias in retrospective studies, especially in the heterogenous tumor environment of HNSCC. The resolution of simple prognostic examination is unlikely to be sufficient to identify biomarkers for clinical practice of HNSCC. Supplementary Information The online version contains supplementary material available at 10.1007/s00405-021-06650-7.
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Affiliation(s)
- J Routila
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Department for Otorhinolaryngology, Head and Neck Surgery, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - I Leivo
- Biomedical Institute, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
| | - H Minn
- FICAN West Cancer Centre, Turku, Finland.,Department of Oncology and Radiotherapy, University of Turku and Turku University Hospital, Turku, Finland
| | - J Westermarck
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Biomedical Institute, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland.,FICAN West Cancer Centre, Turku, Finland
| | - Sami Ventelä
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland. .,Department for Otorhinolaryngology, Head and Neck Surgery, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland. .,FICAN West Cancer Centre, Turku, Finland.
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20
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Chen D, Wang CY. Targeting cancer stem cells in squamous cell carcinoma. PRECISION CLINICAL MEDICINE 2019; 2:152-165. [PMID: 31598386 PMCID: PMC6770277 DOI: 10.1093/pcmedi/pbz016] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/14/2019] [Accepted: 08/14/2019] [Indexed: 12/24/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is a highly aggressive tumor and the sixth
most common cancer worldwide. Current treatment strategies for HNSCC are surgery,
radiotherapy, chemotherapy, immunotherapy or combinatorial therapies. However, the overall
5-year survival rate of HNSCC patients remains at about 50%. Cancer stem cells (CSCs), a
small population among tumor cells, are able to self-renew and differentiate into
different tumor cell types in a hierarchical manner, similar to normal tissue. In HNSCC,
CSCs are proposed to be responsible for tumor initiation, progression, metastasis, drug
resistance, and recurrence. In this review, we discuss the molecular and cellular
characteristics of CSCs in HNSCC. We summarize current approaches used in the literature
for identification of HNSCC CSCs, and mechanisms required for CSC regulation. We also
highlight the role of CSCs in treatment failure and therapeutic targeting options for
eliminating CSCs in HNSCC.
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Affiliation(s)
- Demeng Chen
- Laboratory of Molecular Signaling, Division of Oral Biology and Medicine, School of Dentistry, UCLA, Los Angeles, CA 90095, USA
| | - Cun-Yu Wang
- Laboratory of Molecular Signaling, Division of Oral Biology and Medicine, School of Dentistry, UCLA, Los Angeles, CA 90095, USA.,Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, UCLA, Los Angeles, CA 90095, USA.,Jonsson Comprehensive Cancer Center and Broad Stem Cell Research Center, UCLA, Los Angeles, CA 90095, USA
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21
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Wang HY, Yuan H, Liu JH, Wang BL, Xu KL, Huang P, Lin ZH, Xu LH. Comparative analysis of a panel of biomarkers related to protein phosphatase 2A between laryngeal squamous cell carcinoma tissues and adjacent normal tissues. J Zhejiang Univ Sci B 2019; 20:776-780. [PMID: 31379147 DOI: 10.1631/jzus.b1900179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Laryngeal squamous cell carcinoma (LSCC) is the most common type of head and neck squamous cell carcinoma (HNSCC) worldwide. Protein phosphatase 2A (PP2A) dysfunction has been widely reported in a broad range of malignancies due to its distinctive role in miscellaneous cellular processes. However, it is poorly understood whether aberrant alterations of PP2A are involved in the network of oncogenic events in LSCC. Here, we detected a panel of PP2A-associated proteins using western blot in both laryngeal squamous cell carcinoma tissues and paired adjacent normal tissues from patients (Data S1). We found that phospho-PP2A/C (Y307), α4, cancerous inhibitor of protein phosphatase 2A (CIP2A), Akt, ezrin, phospho-ezrin (T567), 14-3-3, and focal adhesion kinase (FAK) showed increased expression levels in carcinoma tissues relative to normal tissues, while phospho-Akt (T308) showed decreased levels. Our study, thus, provides a rationale for targeting PP2A to develop novel therapies and proposes a combination of interrelated biomarkers for the diagnostic evaluation and prognosis prediction in LSCC.
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Affiliation(s)
- Han-Ying Wang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Hui Yuan
- Department of Otorhinolaryngology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Jing-Hui Liu
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY 40506, USA
| | - Bei-Lei Wang
- Department of Biochemistry, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Kai-Lun Xu
- Cancer Institute, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Pu Huang
- Department of Biochemistry, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Zhi-Hong Lin
- Department of Otorhinolaryngology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Li-Hong Xu
- Department of Biochemistry, School of Medicine, Zhejiang University, Hangzhou 310058, China
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22
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Tsolou A, Lamprou I, Fortosi AO, Liousia M, Giatromanolaki A, Koukourakis MI. 'Stemness' and 'senescence' related escape pathways are dose dependent in lung cancer cells surviving post irradiation. Life Sci 2019; 232:116562. [PMID: 31201845 DOI: 10.1016/j.lfs.2019.116562] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 06/01/2019] [Accepted: 06/11/2019] [Indexed: 12/26/2022]
Abstract
AIMS Lung cancer is one of the main causes of cancer-related deaths worldwide and radiotherapy is a major treatment of choice. However, radioresistance is a main reason for radiotherapy failure or tumor relapse. Here, we investigated possible mechanisms associated with cancer cell radioresistance. MATERIALS AND METHODS We compared two newly derived cell lines, namely A549-IR3 and A549-IR6, which survived repeated (3 or 6 times) 4 Gy exposure of parental A549 lung cancer cell line. DNA repair ability, stemness and senescence were comparatively studied. KEY FINDINGS A549-IR3 exhibited higher proliferation ability and radioresistance compared to parental and A549-IR6 cells. Enhanced radioresistance was not accompanied by chemoresistance to cisplatin or docetaxel. DNA repair kinetics (γΗ2ΑΧ expression) were similar in all cell lines. A549-IR3 cells exhibited a significant rise in stem cell markers (CD44, CD133, OCT4, SOX2 and NANOG) whereas A549-IR6 displayed an increased senescent population. SIGNIFICANCE Cancer cells surviving after radiotherapy may follow two different escape pathways: selection for radioresistance resulting in regrowth, and in clinical terms relapse, or above an irradiation threshold, stem-cells die and cancer cells become senescent, leading the tumor to a state of dormancy.
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Affiliation(s)
- Avgi Tsolou
- Department of Radiotherapy/Oncology, Democritus University of Thrace and University General Hospital of Alexandroupolis, Alexandroupolis 68100, Greece
| | - Ioannis Lamprou
- Department of Radiotherapy/Oncology, Democritus University of Thrace and University General Hospital of Alexandroupolis, Alexandroupolis 68100, Greece
| | - Alexandra-Ourania Fortosi
- Department of Radiotherapy/Oncology, Democritus University of Thrace and University General Hospital of Alexandroupolis, Alexandroupolis 68100, Greece
| | - Maria Liousia
- Department of Radiotherapy/Oncology, Democritus University of Thrace and University General Hospital of Alexandroupolis, Alexandroupolis 68100, Greece
| | - Alexandra Giatromanolaki
- Department of Pathology, Democritus University of Thrace and University General Hospital of Alexandroupolis, Alexandroupolis 68100, Greece
| | - Michael I Koukourakis
- Department of Radiotherapy/Oncology, Democritus University of Thrace and University General Hospital of Alexandroupolis, Alexandroupolis 68100, Greece.
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23
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Jagadeeshan S, Prasad M, Ortiz-Cuaran S, Gregoire V, Saintigny P, Elkabets M. Adaptive Responses to Monotherapy in Head and Neck Cancer: Interventions for Rationale-Based Therapeutic Combinations. Trends Cancer 2019; 5:365-390. [PMID: 31208698 DOI: 10.1016/j.trecan.2019.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 12/16/2022]
Abstract
Most Phase II and III clinical trials in head and neck cancer (HNC) combine two or more treatment modalities, which are based, in part, on knowledge of the molecular mechanisms of innate and acquired resistance to monotherapy. In this review, we describe the range of tumor-cell autonomously derived (intrinsic) and tumor-microenvironment-derived (extrinsic) acquired-resistance mechanisms to various FDA-approved monotherapies for HNC. Specifically, we describe how tumor cells and the tumor microenvironment (TME) respond to radiation, chemotherapy, targeted therapy (cetuximab), and immunotherapies [programmed cell death 1 (PD-1) inhibitors] and adapt to the selective pressure of these monotherapies. Due to the diversity of adaptive responses to monotherapy, monitoring the response to treatment in patients is critical to understand the path that leads to resistance and to guide the optimal therapeutic drug combinations in the clinical setting. We envisage that applying such a rationale-based therapeutic strategy will improve treatment efficacy in HNC patients.
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Affiliation(s)
- Sankar Jagadeeshan
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Manu Prasad
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Sandra Ortiz-Cuaran
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France
| | - Vincent Gregoire
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France; Department of Radiation Therapy, Centre Léon Bérard, Lyon 69008, France
| | - Pierre Saintigny
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France; Department of Medical Oncology, Centre Léon Bérard, Lyon 69008, France
| | - Moshe Elkabets
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
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24
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Velmurugan BK, Wang HK, Chung CM, Lee CH, Huang LR, Yeh KT, Lin SH. CIP2A overexpression in Taiwanese oral cancer patients. Cancer Manag Res 2019; 11:2589-2594. [PMID: 31114325 PMCID: PMC6497856 DOI: 10.2147/cmar.s201154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/05/2019] [Indexed: 12/15/2022] Open
Abstract
Introduction: Oral cancer is a prevalent form of cancer worldwide, particularly in Taiwan, and mechanisms involved in oral squamous cell carcinoma (OSCC) progression remain relatively unknown. Cancerous inhibitor of protein phosphatase 2A (CIP2A), an oncoprotein, is aberrantly expressed in many human malignant tumors including oral cancer. However, the expression and role played by CIP2A in oral cancer pathogenesis remain obscure. Methods: In this study, immunohistochemistry was used to analyze CIP2A expression between OSCC tissues and their adjacent noncancerous tissues. Furthermore, associations between CIP2A expression and histopathological parameters were investigated. Results: In this study, we showed that CIP2A was overexpressed in most of the OSCC tissues. High CIP2A expression was significantly associated with moderate/poor tumor differentiation (P=0.02). No significant association was found between CIP2A expression and other clinical parameters. Kaplan-Meier analysis revealed that high CIP2A expression showed poorer survival rates than those with low CIP2A expression (P=0.047). Multivariate Cox regression analysis indicated that CIP2A expression, N stage, American Joint Committee on Cancer stage and clinical therapy were independent prognostic factors for survival. Conclusion: Thus, our study suggests that CIP2A is an independent prognostic marker for OSCC and a novel target for OSCC treatment.
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Affiliation(s)
| | - Hsin-Kai Wang
- Public Health Bureau, Tainan City Government, Tainan City, Taiwan.,Jenteh Junior College of Medicine, Nursing and Management, Taiwan
| | - Chia-Min Chung
- Graduate Institute of BioMedical Sciences, China Medical University, Taichung, Taiwan.,Environment-Omics-Diseases Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Chien-Hsun Lee
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Lan-Ru Huang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Kun-Tu Yeh
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shu-Hui Lin
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
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25
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Ji J, Zhen W, Si Y, Ma W, Zheng L, Li C, Zhang Y, Qin S, Zhang T, Liu P, Zheng X, Liu Y. Increase in CIP2A expression is associated with cisplatin chemoresistance in gastric cancer. Cancer Biomark 2018; 21:307-316. [PMID: 29103022 DOI: 10.3233/cbm-170416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The cancerous inhibitor of protein phosphatase 2A (CIP2A) is an oncoprotein which involves in the progression of several human malignancies. Development of cisplatin (DDP) resistance is the obstacle to an effective control of gastric cancer (GC) clinically. OBJECTIVE We thus assessed whether CIP2A expression is associated with sensitivity of GC to DDP. METHODS Real-time quantitative PCR, immunohistochemical analysis, or western blotting was performed to detect CIP2A expression in GC patients' tissues. SGC7901/DDP cells were transfected with CIP2A siRNA. MTT assay was used to determine the DDP-sensitivity of cells. Flow cytometry was used to measure cell apoptosis. RESULTS CIP2A has higher expression in DDP-resistant GC patients. DDP-resistant GC patients with high CIP2A expression presented with poorer overall survival rates than those with low CIP2A expression. CIP2A knockdown in DDP-resistant GC cells resulted in attenuated proliferative abilities and increased apoptosis level. CIP2A depletion sensitizes DDP-resistant cells to DDP and CIP2A overexpression antagonizes DDP-sensitive cells to DDP. CIP2A influences the expression of multidrug resistance-related proteins in GC cells. CONCLUSIONS Our results suggested that CIP2A oncoprotein plays an important role in DDP resistance of GC and could serve as a novel therapeutic target for the treatment of GC patients with DDP resistance.
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Affiliation(s)
- Juanli Ji
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China.,School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, China.,Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Weiguo Zhen
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China.,Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Yuan Si
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Wenjing Ma
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China.,School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Lanlan Zheng
- Laboratory of Medicinal Plant, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Chen Li
- Laboratory of Medicinal Plant, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Yonghong Zhang
- Laboratory of Medicinal Plant, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Shanshan Qin
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Te Zhang
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Pengfei Liu
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China.,School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Xin Zheng
- Department of Gastrointestinal Surgery, Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Ying Liu
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, China
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26
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OCT4 Potentiates Radio-Resistance and Migration Activity of Rectal Cancer Cells by Improving Epithelial-Mesenchymal Transition in a ZEB1 Dependent Manner. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3424956. [PMID: 30112378 PMCID: PMC6077687 DOI: 10.1155/2018/3424956] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/31/2018] [Accepted: 06/14/2018] [Indexed: 01/20/2023]
Abstract
Radiotherapy is an important strategy for rectal cancer patient treatment. However, the efficiency of radiation is usually poor, especially in patients with advanced stage rectal cancer due to the radio-resistance developed. At the present study, OCT4 was found to play a critical role in radio-resistance development in human rectal cancer cells by improving the epithelial-mesenchymal transition process (EMT). Endogenous OCT4 expression could confer resistant phonotype on human rectal cancer cells, which was supported by the data from clonogenic forming assay and cell cycle arrest recovering experiment. EMT related transcription factor ZEB1 might take part in the radio-resistance induced by OCT4, as its expression could be upregulated by OCT4 and its silence could reverse the OCT4 induced resistance to radiation in SW480 cells. More interestingly, CHK1 was also upregulated in OCT4/ZEB1 dependent manner conferring stronger DNA damage repair activity on cancer cells, which might explain the underlying mechanisms why OCT4/ZEB1 axis could promote the resistance of human rectal cancer cell to radiation. Taken together, our results provided a novel mechanism for radio-resistance development in human rectal cancer cells and a new target to overcome this resistance.
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27
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Hayashi T, Hikichi M, Yukitake J, Wakatsuki T, Nishio E, Utsumi T, Harada N. Forskolin increases the effect of everolimus on aromatase inhibitor-resistant breast cancer cells. Oncotarget 2018; 9:23451-23461. [PMID: 29805747 PMCID: PMC5955115 DOI: 10.18632/oncotarget.25217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 04/06/2018] [Indexed: 01/31/2023] Open
Abstract
Aromatase inhibitor (AI) resistance is a major obstacle in the treatment of estrogen receptor-positive breast cancer. Everolimus (EVE) ameliorates AI-resistant breast cancer and is therefore used in cancer treatment. However, some patients show resistance to EVE. Here, we used 30 clones of long-term estrogen-deprived (LTED) MCF-7 cells as a model of AI-resistant breast cancer. We examined changes in protein phosphatase type 2A (PP2A) and cancerous inhibitor of PP2A (CIP2A), a negative regulator of PP2A, in LTED cells treated with EVE. In LTED cells with high sensitivity to EVE, CIP2A expression decreased at low EVE concentrations; however, in LTED cells poorly sensitive to EVE, CIP2A and PP2A did not change upon exposure to EVE. Therefore, we hypothesized that there is a relation between expression of CIP2A and sensitivity to EVE. Knockdown of CIP2A increased the sensitivity to EVE in three clones poorly sensitive to EVE. Additionally, we found that treatment with FSK, which activates PP2A, increased the sensitivity of the cells to EVE. Our data point to CIP2A and PP2A as novel therapeutic targets for AI-resistant breast cancer.
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Affiliation(s)
- Takanori Hayashi
- Department of Biochemistry, School of Medicine, Fujita Health University, Aichi, Japan
| | - Masahiro Hikichi
- Department of Breast Surgery, School of Medicine, Fujita Health University, Aichi, Japan
| | - Jun Yukitake
- Department of Clinical Immunology, School of Health Sciences, Fujita Health University, Aichi, Japan
| | - Toru Wakatsuki
- Department of Health Science, School of Medicine, Fujita Health University, Aichi, Japan
| | - Eiji Nishio
- Department of Obstetrics and Gynecology, School of Medicine, Fujita Health University, Aichi, Japan
| | - Toshiaki Utsumi
- Department of Breast Surgery, School of Medicine, Fujita Health University, Aichi, Japan
| | - Nobuhiro Harada
- Department of Biochemistry, School of Medicine, Fujita Health University, Aichi, Japan
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28
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Kolenda T, Przybyła W, Kapałczyńska M, Teresiak A, Zajączkowska M, Bliźniak R, Lamperska KM. Tumor microenvironment - Unknown niche with powerful therapeutic potential. Rep Pract Oncol Radiother 2018; 23:143-153. [PMID: 29760589 PMCID: PMC5948324 DOI: 10.1016/j.rpor.2018.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 11/20/2017] [Accepted: 01/20/2018] [Indexed: 12/25/2022] Open
Abstract
Head and neck squamous cell carcinomas (HNSCC) are in a group of cancers that are the most resistant to treatment. The survival rate of HNSCC patients has been still very low since last 20 years. The existence of relationship between oncogenic and surrounding cells is probably the reason for a poor response to treatment. Fibroblasts are an important element of tumor stroma which increases tumor cells ability to proliferate. Another highly resistance, tumorigenic and metastatic cell population in tumor microenvironment are cancer initiating cells (CICs). The population of cancer initiating cells can be found regardless of differentiation status of cancer and they seem to be crucial for HNSCC development. In this review, we describe the current state of knowledge about HNSCC biological and physiological tumor microenvironment.
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Affiliation(s)
- Tomasz Kolenda
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Poland
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
| | - Weronika Przybyła
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Marta Kapałczyńska
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Department of Gastroenterology and Hepatology, Charite University Medicine Berlin, Berlin, Germany
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Anna Teresiak
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
| | - Maria Zajączkowska
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
| | - Renata Bliźniak
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
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29
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Birkman EM, Elzagheid A, Jokilehto T, Avoranta T, Korkeila E, Kulmala J, Syrjänen K, Westermarck J, Sundström J. Protein phosphatase 2A (PP2A) inhibitor CIP2A indicates resistance to radiotherapy in rectal cancer. Cancer Med 2018; 7:698-706. [PMID: 29441695 PMCID: PMC5852361 DOI: 10.1002/cam4.1361] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 12/30/2017] [Indexed: 12/17/2022] Open
Abstract
Preoperative (chemo)radiotherapy, (C)RT, is an essential part of the treatment of rectal cancer patients, but tumor response to this therapy among patients is variable. Thus far, there are no clinical biomarkers that could be used to predict response to (C)RT or to stratify patients into different preoperative treatment groups according to their prognosis. Overexpression of cancerous inhibitor of protein phosphatase 2A (CIP2A) has been demonstrated in several cancers and is frequently associated with reduced survival. Recently, high CIP2A expression has also been indicated to contribute to radioresistance in head and neck squamous cell carcinoma, but few studies have examined the connection between CIP2A and radiation response regarding other malignancies. We have evaluated CIP2A protein expression levels in relation to tumor regression after preoperative (C)RT and survival of rectal adenocarcinoma patients. The effects of CIP2A knockdown by siRNA on cell survival were further investigated in colorectal cancer cells exposed to radiation. Patients with low‐CIP2A‐expressing tumors had more frequently moderate or excellent response to long‐course (C)RT than patients with high‐CIP2A‐expressing tumors. They also had higher 36‐month disease‐specific survival (DSS) rate in categorical analysis. In the multivariate analysis, low CIP2A expression level remained as an independent predictive factor for increased DSS. Suppression of CIP2A transcription by siRNA was found to sensitize colorectal cancer cells to irradiation and decrease their survival in vitro. In conclusion, these results suggest that by contributing to radiosensitivity of cancer cells, low CIP2A protein expression level associates with a favorable response to long‐course (C)RT in rectal cancer patients.
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Affiliation(s)
- Eva-Maria Birkman
- Department of Pathology, University of Turku, Turku, Finland.,Department of Pathology, Turku University Hospital, Turku, Finland
| | - Adam Elzagheid
- Department of Pathology, Faculty of Medicine, Benghazi University, Benghazi, Libya.,Department of Genetic Engineering, Biotechnology Research Center, Tripoli, Libya
| | - Terhi Jokilehto
- Department of Pathology, University of Turku, Turku, Finland.,Department of Medical Biochemistry and Genetics, University of Turku, Turku, Finland
| | - Tuulia Avoranta
- Department of Pathology, University of Turku, Turku, Finland.,Department of Oncology, University of Turku and Turku University Hospital, Turku, Finland
| | - Eija Korkeila
- Department of Oncology, University of Turku and Turku University Hospital, Turku, Finland
| | - Jarmo Kulmala
- Department of Oncology, University of Turku and Turku University Hospital, Turku, Finland
| | - Kari Syrjänen
- Department of Clinical Research, Biohit Oyj, Helsinki, Finland.,Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Jukka Westermarck
- Department of Pathology, University of Turku, Turku, Finland.,Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Jari Sundström
- Department of Pathology, University of Turku, Turku, Finland.,Department of Pathology, Turku University Hospital, Turku, Finland
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30
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Cha G, Xu J, Xu X, Li B, Lu S, Nanding A, Hu S, Liu S. High expression of CIP2A protein is associated with tumor aggressiveness in stage I-III NSCLC and correlates with poor prognosis. Onco Targets Ther 2017; 10:5907-5914. [PMID: 29276394 PMCID: PMC5731340 DOI: 10.2147/ott.s148250] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this work was to examine the expression of cancerous inhibitor of protein phosphatase 2A (CIP2A) in non-small cell lung cancer (NSCLC) and analyze its correlation with clinical outcomes. CIP2A protein levels were detected by immunohistochemistry (IHC). One hundred and eighty-four of 209 (88.3%) primary stage I-III NSCLC specimens and 4 of 38 (10.5%) adjacent normal lung tissue specimens expressed CIP2A protein. High expression of CIP2A was detected in 38.8% (81/209) of the NSCLC specimens. Patients diagnosed histologically with late-stage NSCLC (p<0.001) and malignant nodes (p=0.001) exhibited high CIP2A expression. Univariate analysis using the log-rank test identified CIP2A expression as a prognostic predictor for overall survival (p=0.005). In multivariate analyses using the Cox regression test, CIP2A expression, T stage, N stage, histological type, and chemotherapy were identified as independent prognostic factors (p=0.007, 0.001, 0.003, <0.001, and <0.001, respectively). Furthermore, Kaplan-Meier survival curves demonstrated that high CIP2A expression indicated poor prognosis in the subgroup of patients with squamous cell carcinoma (p=0.008). Similar results were noted in the subgroup of patients with adenocarcinoma, but the results did not reach statistical significance (p=0.084). We also used univariate analysis and multivariate analysis to assess the prognostic factors for overall survival in the subgroup of patients who received postoperative chemotherapy. CIP2A expression was also an independent prognostic factor in NSCLC patients who received postoperative chemotherapy (p=0.009), along with histological type (p=0.001) and N stage (p=0.034). In conclusion, adding to the accumulating evidence, our research suggested that the CIP2A expression is associated with aggressiveness and correlates with poor prognosis in NSCLC. Our findings also indicated that CIP2A might be a potential therapeutic target against NSCLC.
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Affiliation(s)
- Geqi Cha
- Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang
| | - Jianyu Xu
- Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang
| | - Xiangying Xu
- Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang
| | - Bin Li
- Department of Plastic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong
| | - Shan Lu
- Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang
| | - Abiyasi Nanding
- Department of Pathology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Songliu Hu
- Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang
| | - Shilong Liu
- Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang
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31
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Chang L, Graham P, Hao J, Ni J, Deng J, Bucci J, Malouf D, Gillatt D, Li Y. Cancer stem cells and signaling pathways in radioresistance. Oncotarget 2017; 7:11002-17. [PMID: 26716904 PMCID: PMC4905454 DOI: 10.18632/oncotarget.6760] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/22/2015] [Indexed: 12/17/2022] Open
Abstract
Radiation therapy (RT) is one of the most important strategies in cancer treatment. Radioresistance (the failure to RT) results in locoregional recurrence and metastasis. Therefore, it is critically important to investigate the mechanisms leading to cancer radioresistance to overcome this problem and increase patients' survival. Currently, the majority of the radioresistance-associated researches have focused on preclinical studies. Although the exact mechanisms of cancer radioresistance have not been fully uncovered, accumulating evidence supports that cancer stem cells (CSCs) and different signaling pathways play important roles in regulating radiation response and radioresistance. Therefore, targeting CSCs or signaling pathway proteins may hold promise for developing novel combination modalities and overcoming radioresistance. The present review focuses on the key evidence of CSC markers and several important signaling pathways in cancer radioresistance and explores innovative approaches for future radiation treatment.
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Affiliation(s)
- Lei Chang
- Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia.,St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Kensington, NSW, Australia
| | - Peter Graham
- Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia.,St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Kensington, NSW, Australia
| | - Jingli Hao
- Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia.,St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Kensington, NSW, Australia
| | - Jie Ni
- Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia.,St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Kensington, NSW, Australia
| | - Junli Deng
- Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia.,St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Kensington, NSW, Australia
| | - Joseph Bucci
- Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia.,St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Kensington, NSW, Australia
| | - David Malouf
- Department of Urology, St George Hospital, Kogarah, NSW, Australia
| | - David Gillatt
- Department of Urology, St George Hospital, Kogarah, NSW, Australia.,Australian School of Advanced Medicine, Macquarie University, Sydney, NSW, Australia
| | - Yong Li
- Cancer Care Centre, St George Hospital, Kogarah, NSW, Australia.,St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Kensington, NSW, Australia
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32
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Liu Y, Mattila J, Ventelä S, Yadav L, Zhang W, Lamichane N, Sundström J, Kauko O, Grénman R, Varjosalo M, Westermarck J, Hietakangas V. PWP1 Mediates Nutrient-Dependent Growth Control through Nucleolar Regulation of Ribosomal Gene Expression. Dev Cell 2017; 43:240-252.e5. [PMID: 29065309 DOI: 10.1016/j.devcel.2017.09.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/01/2017] [Accepted: 09/25/2017] [Indexed: 11/29/2022]
Abstract
Ribosome biogenesis regulates animal growth and is controlled by nutrient-responsive mTOR signaling. How ribosome biogenesis is regulated during the developmental growth of animals and how nutrient-responsive signaling adjusts ribosome biogenesis in this setting have remained insufficiently understood. We uncover PWP1 as a chromatin-associated regulator of developmental growth with a conserved role in RNA polymerase I (Pol I)-mediated rRNA transcription. We further observed that PWP1 epigenetically maintains the rDNA loci in a transcription-competent state. PWP1 responds to nutrition in Drosophila larvae via mTOR signaling through gene expression and phosphorylation, which controls the nucleolar localization of dPWP1. Our data further imply that dPWP1 acts synergistically with mTOR signaling to regulate the nucleolar localization of TFIIH, a known elongation factor of Pol I. Ribosome biogenesis is often deregulated in cancer, and we demonstrate that high PWP1 levels in human head and neck squamous cell carcinoma tumors are associated with poor prognosis.
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Affiliation(s)
- Ying Liu
- Department of Biosciences, University of Helsinki, 00790 Helsinki, Finland; Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Jaakko Mattila
- Department of Biosciences, University of Helsinki, 00790 Helsinki, Finland; Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Sami Ventelä
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Leena Yadav
- Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Wei Zhang
- Department of Biosciences, University of Helsinki, 00790 Helsinki, Finland; Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Nicole Lamichane
- Department of Biosciences, University of Helsinki, 00790 Helsinki, Finland; Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Jari Sundström
- Department of Pathology, University of Turku, 20520 Turku, Finland; Department of Pathology, Turku University Hospital, 20521 Turku, Finland
| | - Otto Kauko
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Department of Pathology, University of Turku, 20520 Turku, Finland
| | - Reidar Grénman
- Department of Otorhinolaryngology - Head and Neck Surgery and Department of Medical Biochemistry and Genetics, University of Turku and Turku University Hospital, 20521 Turku, Finland
| | - Markku Varjosalo
- Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Jukka Westermarck
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Department of Pathology, University of Turku, 20520 Turku, Finland
| | - Ville Hietakangas
- Department of Biosciences, University of Helsinki, 00790 Helsinki, Finland; Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland.
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Kim MO, Choe MH, Yoon YN, Ahn J, Yoo M, Jung KY, An S, Hwang SG, Oh JS, Kim JS. Antihelminthic drug niclosamide inhibits CIP2A and reactivates tumor suppressor protein phosphatase 2A in non-small cell lung cancer cells. Biochem Pharmacol 2017; 144:78-89. [PMID: 28813646 DOI: 10.1016/j.bcp.2017.08.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 08/10/2017] [Indexed: 02/07/2023]
Abstract
Protein phosphatase 2A (PP2A) is a critical tumor suppressor complex responsible for the inactivation of various oncogenes. Recently, PP2A reactivation has emerged asan anticancer strategy. Cancerous inhibitor of protein phosphatase 2A (CIP2A), an endogenous inhibitor of PP2A, is upregulated in many cancer cells, including non-small cell lung cancer (NSCLC) cells. We demonstrated that the antihelminthic drug niclosamide inhibited the expression of CIP2A and reactivated the tumor suppressor PP2A in NSCLC cells. We performed a drug-repurposing screen and identified niclosamide asa CIP2A suppressor in NSCLC cells. Niclosamide inhibited cell proliferation, colony formation, and tumor sphere formation, and induced mitochondrial dysfunction through increased mitochondrial ROS production in NSCLC cells; however, these effects were rescued by CIP2A overexpression, which indicated that the antitumor activity of niclosamide was dependent on CIP2A. We found that niclosamide increased PP2A activity through CIP2A inhibition, which reduced the phosphorylation of several oncogenic proteins. Moreover, we found that a niclosamide analog inhibited CIP2A expression and increased PP2A activity in several types of NSCLC cells. Finally, we showed that other well-known PP2A activators, including forskolin and FTY720, did not inhibit CIP2A and that their activities were not dependent on CIP2A. Collectively, our data suggested that niclosamide effectively suppressed CIP2A expression and subsequently activated PP2A in NSCLC cells. This provided strong evidence for the potential use of niclosamide asa PP2A-activating drug in the clinical treatment of NSCLC.
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Affiliation(s)
- Myeong-Ok Kim
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea; Molecular-Targeted Drug Research Center and Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, South Korea
| | - Min Ho Choe
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea; Department of Life Sciences and Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul, South Korea
| | - Yi Na Yoon
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea; Radiological and Medico-Oncological Sciences, University of Science and Technology, South Korea
| | - Jiyeon Ahn
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Minjin Yoo
- Department of Medicinal Chemistry and Pharmacology, University of Science and Technology, South Korea
| | - Kwan-Young Jung
- Department of Medicinal Chemistry and Pharmacology, University of Science and Technology, South Korea; Center for Medicinal Chemistry, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Sungkwan An
- Molecular-Targeted Drug Research Center and Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, South Korea
| | - Sang-Gu Hwang
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Jeong Su Oh
- Department of Genetic Engineering, Sungkyunkwan University, Suwon, South Korea.
| | - Jae-Sung Kim
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea; Radiological and Medico-Oncological Sciences, University of Science and Technology, South Korea.
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Liu X, Cao W, Qin S, Zhang T, Zheng J, Dong Y, Ming P, Cheng Q, Lu Z, Guo Y, Zhang B, Liu Y. Overexpression of CIP2A is associated with poor prognosis in multiple myeloma. Signal Transduct Target Ther 2017; 2:17013. [PMID: 29263916 PMCID: PMC5661621 DOI: 10.1038/sigtrans.2017.13] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/04/2017] [Accepted: 03/02/2017] [Indexed: 11/09/2022] Open
Abstract
Cancerous inhibitor of protein phosphatase 2A (CIP2A), an endogenous protein phosphatase 2A (PP2A) inhibitor, has been identified as an oncoprotein in promoting cancer initiation and progression of several types of cancer. However, the expression and the role played by CIP2A in the pathogenesis of multiple myeloma (MM) remain unclear. In this study, we showed that CIP2A was overexpressed in human MM cell lines and MM patients' bone marrow tissues. Clinicopathologic analysis showed that CIP2A expression was significantly correlated with clinical stage and percent of plasma cells in bone marrow. Kaplan-Meier analysis revealed that patients with high CIP2A expression presented with poorer overall survival rates than those with low CIP2A expression. Moreover, CIP2A knockdown in MM cells resulted in attenuated proliferative abilities. In addition, CIP2A depletion sensitizes dexamethasone (Dex)-resistant cells to Dex. The effect of CIP2A on proliferation and Dex therapy was mediated by the inhibition of PP2A, which in turn activated Akt. In vivo studies confirmed that CIP2A regulated MM tumorigenesis and the phosphorylation of Akt. Taken together, our results suggest that CIP2A oncoprotein plays an important role in MM progression and could serve as a prognosis marker and a novel therapeutic target for the treatment of patients with MM.
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Affiliation(s)
- Xuewen Liu
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences; Hubei University of Medicine, Shiyan, China
| | - Wei Cao
- MOE Key Laboratory of Industrial Fermentation Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Shanshan Qin
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences; Hubei University of Medicine, Shiyan, China
| | - Te Zhang
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences; Hubei University of Medicine, Shiyan, China
| | - Junnian Zheng
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Ying Dong
- Department of Oncology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Pinghong Ming
- Department of Pathology, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China
| | - Qian Cheng
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Zheng Lu
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Yang Guo
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences; Hubei University of Medicine, Shiyan, China
| | - Baofu Zhang
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Ying Liu
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences; Hubei University of Medicine, Shiyan, China
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Amey CL, Karnoub AE. Targeting Cancer Stem Cells-A Renewed Therapeutic Paradigm. ONCOLOGY & HEMATOLOGY REVIEW 2017; 13:45-55. [PMID: 33959299 PMCID: PMC8098671 DOI: 10.17925/ohr.2017.13.01.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Metastasis is often accompanied by radio- and chemotherapeutic resistance to anticancer treatments and is the major cause of death in cancer patients. Better understanding of how cancer cells circumvent therapeutic insults and how disseminated cancer clones generate life-threatening metastases would therefore be paramount to the development of effective therapeutic approaches for clinical management of malignant disease. Mounting reports over the past two decades have provided evidence for the existence of a minor population of highly malignant cells within liquid and solid tumors, which are capable of self-renewing and of regenerating secondary growths with the heterogeneity of the primary tumors from which they derive. These cells, called tumor-initiating cells or cancer stem cells (CSCs) exhibit increased resistance to standard radio- and chemotherapies and appear to have mechanisms that enable them to evade immune surveillance. CSCs are therefore considered to be responsible for systemic residual disease after cancer therapy, as well as for disease relapse. How CSCs develop, the nature of the interactions they establish with their microenvironment, their phenotypic and functional characteristics, as well as their molecular dependencies have all taken center stage in cancer therapy. Indeed, improved understanding of CSC biology is critical to the development of important CSC-based anti-neoplastic approaches that have the potential to radically improve cancer management. Here, we summarize some of the most pertinent elements regarding CSC development and properties, and highlight some of the clinical modalities in current development as anti-CSC therapeutics.
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Affiliation(s)
| | - Antoine E Karnoub
- Department of Pathology, Beth Israel Deaconess Cancer Center and Harvard Medical School, Boston, Massachusetts, US; Harvard Stem Cell Institute, Cambridge, Massachusetts, US; Broad Institute of MIT and Harvard, Cambridge, Massachusetts, US
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36
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Li C, Zhu M, Lou X, Liu C, Chen H, Lin X, Ji W, Li Z, Su C. Transcriptional factor OCT4 promotes esophageal cancer metastasis by inducing epithelial-mesenchymal transition through VEGF-C/VEGFR-3 signaling pathway. Oncotarget 2017; 8:71933-71945. [PMID: 29069758 PMCID: PMC5641101 DOI: 10.18632/oncotarget.18035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 05/10/2017] [Indexed: 12/03/2022] Open
Abstract
The octamer-binding transcription factor 4 (OCT4) can promote cancer proliferation and metastasis. Esophageal carcinoma (ECC) harbors different quantities of OCT4-positive cancer cells. These cells are highly malignant and prone to metastasis; however, the mechanism remains unknown. In this study, we found that OCT4 enhances vascular endothelial growth factor C (VEGF-C) promoter activity to promote VEGF-C expression and activates VEGF receptor 3 (VEGFR-3) in ECC cells, thereby inducing cancer cell epithelial-mesenchymal transition (EMT). Studies using xenograft models showed that OCT4 promoted xenograft growth and intraperitoneal implantation metastasis of ECC cells. Downregulation of OCT4 expression could inhibit cancer metastasis. OCT4- and VEGF-C-positive ECC presented more malignant biological behaviors and the corresponding patients exhibited a poor prognosis. The study confirmed that the OCT4/VEGF-C/VEGFR-3/EMT signaling plays a role in the progression of ECC. Understanding of how OCT4 regulates EMT and how ECC metastasis occurs will provide useful targets for the biological treatment of ECC.
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Affiliation(s)
- Chunguang Li
- Department of Thoracic Surgery and Reconstructive Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.,Department of Molecular Oncology, Eastern Hepatobiliary Surgery Hospital and National Center of Liver Cancer, Second Military Medical University, Shanghai 200433, China
| | - Maoling Zhu
- Department of Gastroenterology, Shanghai Yangpu Hospital, Tongji University, Shanghai 200090, China
| | - Xiaoli Lou
- Department of Thoracic Surgery and Reconstructive Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Chunying Liu
- Department of Molecular Oncology, Eastern Hepatobiliary Surgery Hospital and National Center of Liver Cancer, Second Military Medical University, Shanghai 200433, China
| | - Hezhong Chen
- Department of Thoracic Surgery and Reconstructive Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Xuejing Lin
- Department of Molecular Oncology, Eastern Hepatobiliary Surgery Hospital and National Center of Liver Cancer, Second Military Medical University, Shanghai 200433, China
| | - Weidan Ji
- Department of Molecular Oncology, Eastern Hepatobiliary Surgery Hospital and National Center of Liver Cancer, Second Military Medical University, Shanghai 200433, China
| | - Zhigang Li
- Department of Thoracic Surgery, Shanghai Chest Hospital Esophageal Disease Center, Shanghai Jiao-Tong University, Shanghai 200030, China
| | - Changqing Su
- Department of Molecular Oncology, Eastern Hepatobiliary Surgery Hospital and National Center of Liver Cancer, Second Military Medical University, Shanghai 200433, China
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37
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Prognostic Value of Cancer Stem Cell Markers in Head and Neck Squamous Cell Carcinoma: a Meta-analysis. Sci Rep 2017; 7:43008. [PMID: 28220856 PMCID: PMC5318950 DOI: 10.1038/srep43008] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 01/18/2017] [Indexed: 12/18/2022] Open
Abstract
Bmi-1, CD133, Nanog and Oct-4 have been reported as cancer stem cell (CSC) markers in head and neck squamous cell carcinoma (HNSCC). However, the prognostic value of them in HNSCC remains controversial. Hence, this meta-analysis was conducted to access the association between the four CSC markers and survival outcome of HNSCC patients. A total of 22 articles with 27 studies met the inclusion criteria and the combined hazard ratio (HR) and 95% confidence intervals (95% CI) were calculated. Data analysis showed that high expression of CSC markers was associated with poor overall survival (OS) (HR = 1.93; 95% CI: 1.46–2.55, P < 0.001) and disease free survival (DFS) (HR = 4.78; 95% CI: 2.95–7.75, P < 0.001) but not disease specific survival (DSS) (HR = 1.17; 95% CI: 0.74–1.84, P = 0.50) of HNSCC patients. Subgroup analysis indicted that high expression of CD133 (HR = 2.33, 95%CI: 1.42–3.83, P < 0.001), Oct-4(HR = 2.10, 95%CI: 1.36–3.22, P = 0.007) and Nanog (HR = 2.49, 95%CI: 1.66–3.72, P < 0.001) could predict poor OS in HNSCC patients respectively whereas overexpression of Bmi-1 was not related to the reduced OS in HNSCC patients (HR = 1.32, 95%CI: 0.66–2.65, P = 0.43). Therefore, we concluded that CSC markers, especially CD133, Nanog and Oct-4, might be predictive factors in HNSCC patients.
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38
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Toraih EA, Fawzy MS, El-Falouji AI, Hamed EO, Nemr NA, Hussein MH, Abd El Fadeal NM. Stemness-related transcriptional factors and homing gene expression profiles in hepatic differentiation and cancer. Mol Med 2016; 22:653-663. [PMID: 27623812 DOI: 10.2119/molmed.2016.00096] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 08/26/2016] [Indexed: 12/12/2022] Open
Abstract
Stem cell transcriptional signature activation is an essential event in the development of cancer. This study aimed to investigate the differential expression profile of three pluripotency-associated genes (OCT4, NANOG, and SOX2), G-protein-coupled chemokine receptor 4 (CXCR4) and the ligand (CXCL2), and alpha feto-protein (AFP) in hepatogenic differentiated stem cells and in sera of hepatitis C virus (HCV) and HCV-induced hepatocellular carcinoma (HCC) patients. Mesenchymal stem cells derived from umbilical cord blood were differentiated using hepatogenic differentiation media. Serum specimens were collected from 96 patients (32 cirrhotic HCV, 32 early HCC, and 32 late HCC) and 96 controls. Real-time quantitative reverse transcription polymerase chain reaction was performed for relative quantification of the 6 target genes using LIVAC method. In silico network analysis was also executed to explore the pluripotency and tumorigenic regulatory circuits in liver cancer. The expression levels of all genes declined gradually during the stages of stem cell differentiation. On univariate and multivariate analyses, NANOG, CXCR4 and AFP were significantly up-regulated in HCC patients with late clinical stage. In contrast, SOX2 and CXCL2 were markedly over-expressed in cirrhotic patients and could be used for clear demarcation between cirrhotic and HCC patients in our cases. In conclusion, our data highlight the potential role of SOX2 stem cell marker and CXCL2 chemokine in liver cell degeneration and fibrogenesis in HCV-induced hepatic cirrhosis in our sample of the Egyptian population. In addition, the significant association of NANOG and CXCR4 high-expression with late HCC, could contribute to the acquisition of stem cell-like properties in hepatic cancer and dissemination in late stages, respectively. Taken together, our results could have a potential application in HCC prognosis and treatment.
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Affiliation(s)
- Eman A Toraih
- Department of Histology and Cell Biology, Genetics Unit, Faculty of Medicine, Suez Canal University, Ismailia, Egypt, P.O. 41522
| | - Manal S Fawzy
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt, P.O. 41522
| | | | - Elham O Hamed
- Clinical Pathology Department, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Nader A Nemr
- Endemic and Infectious diseases Department, Suez Canal University, Ismailia, Egypt
| | | | - Noha M Abd El Fadeal
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt, P.O. 41522
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Kurth I, Hein L, Mäbert K, Peitzsch C, Koi L, Cojoc M, Kunz-Schughart L, Baumann M, Dubrovska A. Cancer stem cell related markers of radioresistance in head and neck squamous cell carcinoma. Oncotarget 2016; 6:34494-509. [PMID: 26460734 PMCID: PMC4741468 DOI: 10.18632/oncotarget.5417] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/25/2015] [Indexed: 01/01/2023] Open
Abstract
Despite recent advances in understanding of the molecular pathogenesis and improvement of treatment techniques, locally advanced head and neck squamous cell carcinoma (HNSCC) remains associated with an unfavorable prognosis. Compelling evidence suggests that cancer stem cells (CSC) may cause tumor recurrence if they are not eradicated by current therapies as radiotherapy or radio-chemotherapy. Recent in vitro studies have demonstrated that CSCs may be protected from treatment-induced death by multiple intrinsic and extrinsic mechanisms. Therefore, early determination of CSC abundance in tumor biopsies prior-treatment and development of therapeutics, which specifically target CSCs, are promising strategies to optimize treatment. Here we provide evidence that aldehyde dehydrogenase (ALDH) activity is indicative for radioresistant HNSCC CSCs. Our study suggests that ALDH+ cells comprise a population that maintains its tumorigenic properties in vivo after irradiation and may provide tumor regrowth after therapy. We found that ALDH activity in HNSCC cells can be attributed, at least in part, to the ALDH1A3 isoform and inhibition of the ALDH1A3 expression by small interfering RNA (siRNA) decreases tumor cell radioresistance. The expression dynamic of ALDH1A3 upon irradiation by either induction or selection of the ALDH1A3 positive population correlates to in vivo curability, suggesting that changes in protein expression during radiotherapy are indicative for tumor radioresistance. Our data indicate that ALDH1A3+ HNSCC cells may contribute to tumor relapse after irradiation, and inhibition of this cell population might improve therapeutic response to radiotherapy.
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Affiliation(s)
- Ina Kurth
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Linda Hein
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Katrin Mäbert
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Claudia Peitzsch
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Lydia Koi
- Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Monica Cojoc
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Leoni Kunz-Schughart
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Michael Baumann
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.,Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology, Dresden, Germany.,German Cancer Consortium (DKTK), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Anna Dubrovska
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.,German Cancer Consortium (DKTK), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
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40
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Zheng Z, Qiao Z, Chen W, Gong R, Wang Y, Xu L, Ma Y, Zhang L, Lu Y, Jiang B, Li G, Dong C. CIP2A regulates proliferation and apoptosis of multiple myeloma cells. Mol Med Rep 2016; 14:2705-9. [PMID: 27484817 DOI: 10.3892/mmr.2016.5553] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 04/02/2016] [Indexed: 11/05/2022] Open
Abstract
Multiple myeloma (MM) is one of the most common causes of mortality from hematological malignancy in China. Recent studies have demonstrated that cancerous inhibitor of protein phosphatase 2A (CIP2A) may exhibit a role in promoting the growth of cancer; however, the function of CIP2A in MM remains unknown. In the present study, the expression and molecular mechanism underlying the effects of CIP2A in patients with MM and in MM cell lines were elucidated. Firstly, the expression of CIP2A was detected in patients with MM and in MM cell lines by reverse transcription‑quantitative polymerase chain reaction. Furthermore, silencing of CIP2A with short hairpin RNA was performed in MM cells, and the impact on the proliferation and apoptosis of RPMI‑8226 cells was analyzed (as endogenous CIP2A is highly expressed in RPMI‑8226 cell lines compared with other cells). CIP2A was significantly elevated in patients with MM and in MM cell lines, and silencing of CIP2A could inhibit the proliferation ability of RPMI‑8226 cells in vitro. In addition, CIP2A knockdown induced apoptosis and led to substantial reduction of c‑Myc protein levels in MM cell lines. This study suggested that CIP2A inhibition may provide a promising therapeutic strategy for patients with MM.
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Affiliation(s)
- Zhuanzhen Zheng
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Zhenhua Qiao
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Wenliang Chen
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Rong Gong
- Shanxi Academy of Medical Sciences, Shanxi University Hospital, Taiyuan, Shanxi 030006, P.R. China
| | - Yalin Wang
- Department of Hematology, The Second People's Hospital of Shanxi, Taiyuan, Shanxi 037008, P.R. China
| | - Lianrong Xu
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Yanping Ma
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Li Zhang
- Shanxi Academy of Medical Sciences, Shanxi University Hospital, Taiyuan, Shanxi 030006, P.R. China
| | - Yujin Lu
- Shanxi Academy of Medical Sciences, Shanxi University Hospital, Taiyuan, Shanxi 030006, P.R. China
| | - Bo Jiang
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Guoxia Li
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Chunxia Dong
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
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41
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Li LL, Zhu R, Chen XY, Zhao K. Relationship between Oct4 and colorectal cancer development and progression. Shijie Huaren Xiaohua Zazhi 2015; 23:5325-5332. [DOI: 10.11569/wcjd.v23.i33.5325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Octamer-binding transcription factor 4 (Oct4), a member of the POU transcription factor family, is considered the key factor for maintaining self-renewal and pluripotency of embryonic stem cells. It is expressed not only in embryonic stem cells, germ cells and embryonic tumor cells but also in a variety of somatic cell tumors, and is closely related with the occurrence and development of malignant tumors. Recent studies have shown that Oct4 is the target gene of Wnt and transforming growth factor-β signaling pathways, and is involved in maintaining the survival of the colon cancer stem cells. The expression of Oct4 has a profound impact on the occurrence, recurrence, metastasis and prognosis of colorectal cancer. In this paper, we will review the relationship between Oct4 and colorectal cancer development and progression.
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42
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Routila J, Bilgen T, Saramäki O, Grénman R, Visakorpi T, Westermarck J, Ventelä S. Copy number increase of oncoprotein CIP2A is associated with poor patient survival in human head and neck squamous cell carcinoma. J Oral Pathol Med 2015; 45:329-37. [PMID: 26436875 DOI: 10.1111/jop.12372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND CIP2A, an inhibitor of PP2A tumour suppressor function, is a widely overexpressed biomarker of aggressive disease and poor therapy response in multiple human cancer types. METHODS CIP2A and DPPA4 copy number alterations and expression were analysed by fluorescence in situ hybridisation (FISH) and immunohistochemistry (IHC) in different cell lines and a tissue microarray of 52 HNSCC patients. Results were correlated with patient survival and other clinicopathological data. RESULTS CIP2A and DPPA4 copy number increase occurred at a relatively high frequency in human HNSCC patient samples. CIP2A but not DPPA4 FISH status was significantly associated with patient survival. CIP2A detection by combining IHC with FISH yielded superior resolution in the prognostication of HNSCC. CONCLUSIONS CIP2A copy number increase is associated with poor patient survival in human HNSCC. We suggest that the reliability and prognostic value of CIP2A detection can be improved by performing FISH analysis to CIP2A IHC positive tumours.
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Affiliation(s)
- Johannes Routila
- Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Türker Bilgen
- Prostate Cancer Research Center, Institute of Biosciences and Medical Technology-BioMediTech, University of Tampere, Tampere, Finland.,Research and Application Centre for Scientific and Technological Investigations (NABILTEM), Namik Kemal University, Tekirdag, Turkey
| | - Outi Saramäki
- Prostate Cancer Research Center, Institute of Biosciences and Medical Technology-BioMediTech, University of Tampere, Tampere, Finland.,Fimlab Laboratories, Tampere University Hospital, Tampere, Finland
| | - Reidar Grénman
- Department of Otorhinolaryngology - Head and Neck Surgery, Turku University Hospital, Turku, Finland
| | - Tapio Visakorpi
- Prostate Cancer Research Center, Institute of Biosciences and Medical Technology-BioMediTech, University of Tampere, Tampere, Finland.,Fimlab Laboratories, Tampere University Hospital, Tampere, Finland
| | - Jukka Westermarck
- Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland.,Department of Pathology, University of Turku, Turku, Finland
| | - Sami Ventelä
- Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland.,Department of Otorhinolaryngology - Head and Neck Surgery, Turku University Hospital, Turku, Finland
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43
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De P, Carlson JH, Leyland-Jones B, Dey N. Role of "oncogenic nexus" of CIP2A in breast oncogenesis: how does it work? Am J Cancer Res 2015; 5:2872-2891. [PMID: 26609493 PMCID: PMC4633914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/15/2015] [Indexed: 06/05/2023] Open
Abstract
The CIP2A gene is an oncogene associated with solid and hematologic malignancies [1]. CIP2A protein is an oncoprotein and a potential cancer therapy target [2]. Literature shows that CIP2A inhibits the tumor suppressor protein PP2A [3] which downregulates phophorylation of AKT, a hallmark of cancers [4] and stabilizes the proto-oncogene, c-MYC in tumor cells [5], the comprehensive action of CIP2A and its functional interaction(s) with other oncoproteins and tumor suppressors is not clearly established. Recently we tried to put forward a contextual mode-of-action of CIP2A protein in a review which proposed that CIP2A influences oncogenesis via an "oncogenic nexus" [1]. In this review we critically evaluated the potential relevance of the mode-of-action of the "oncogenic nexus" of CIP2A in breast carcinogenesis and appraised the role of this nexus in different PAM50 luminal A, PAM50 luminal B, PAM50 HER2-enriched and PAM50 basal BC. This review has a novel approach. Here we have not only compiled and discussed the latest developments in this field but also presented data obtained from c-BioPortal and STRING10 in order to substantiate our view regarding the mode-of-action of the "oncogenic nexus" of CIP2A. We functionally correlated alterations of genes pertaining to the "oncogenic nexus" of CIP2A with protein-protein interactions between the different components of the nexus including (1) subunits of PP2A, (2) multiple transcription factors including MYC oncogene and (3) components of the PI3K-mTOR and the MAPK-ERK oncogenic pathways. Using these proteins as "input" to STRING10 we studied the association, Action view, at the highest Confidence level. OncoPrints (c-BioPortal) showed alterations (%) of regulatory subunits genes of PP2A (PPP2R1A and PPP2R1B) along with alterations of CIP2A in breast invasive carcinoma (TCGA, Nature 2012 & TCGA, Provisional). Similar genetic alterations of PP2A were also observed in samples of breast tumors at our Avera Research Institute, SD. In an attempt to critically evaluate the role of "oncogenic nexus" of CIP2A in subtypes of BC, we used PPP2R1A and PPP2R1B as "inputs" into the STRING10 and obtained their predicted association (Action view) in respect to CIP2A. The outcome of this exercise has been discussed in the light of the literature in the BC research in the context of "oncogenic nexus" of CIP2A. In summary, herein we review the progress in our understanding of how CIP2A regulates oncogenic transformations of breast cells via PP2A-CIP2A "oncogenic nexus" and how we can prospect the clinical relevance of CIP2A in the context of BC.
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Affiliation(s)
- Pradip De
- Department of Molecular & Experimental Medicine, Avera Research InstituteSioux Falls, SD, USA
- Department of Internal Medicine, SSOM, USDSioux Falls, SD, USA
| | - Jennifer H Carlson
- Department of Molecular & Experimental Medicine, Avera Research InstituteSioux Falls, SD, USA
| | - Brian Leyland-Jones
- Department of Molecular & Experimental Medicine, Avera Research InstituteSioux Falls, SD, USA
- Department of Internal Medicine, SSOM, USDSioux Falls, SD, USA
| | - Nandini Dey
- Department of Molecular & Experimental Medicine, Avera Research InstituteSioux Falls, SD, USA
- Department of Internal Medicine, SSOM, USDSioux Falls, SD, USA
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Myant K, Qiao X, Halonen T, Come C, Laine A, Janghorban M, Partanen JI, Cassidy J, Ogg EL, Cammareri P, Laiterä T, Okkeri J, Klefström J, Sears RC, Sansom OJ, Westermarck J. Serine 62-Phosphorylated MYC Associates with Nuclear Lamins and Its Regulation by CIP2A Is Essential for Regenerative Proliferation. Cell Rep 2015; 12:1019-31. [PMID: 26235622 PMCID: PMC4535171 DOI: 10.1016/j.celrep.2015.07.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 04/24/2015] [Accepted: 07/01/2015] [Indexed: 02/07/2023] Open
Abstract
An understanding of the mechanisms determining MYC's transcriptional and proliferation-promoting activities in vivo could facilitate approaches for MYC targeting. However, post-translational mechanisms that control MYC function in vivo are poorly understood. Here, we demonstrate that MYC phosphorylation at serine 62 enhances MYC accumulation on Lamin A/C-associated nuclear structures and that the protein phosphatase 2A (PP2A) inhibitor protein CIP2A is required for this process. CIP2A is also critical for serum-induced MYC phosphorylation and for MYC-elicited proliferation induction in vitro. Complementary transgenic approaches and an intestinal regeneration model further demonstrated the in vivo importance of CIP2A and serine 62 phosphorylation for MYC activity upon DNA damage. However, targeting of CIP2A did not influence the normal function of intestinal crypt cells. These data underline the importance of nuclear organization in the regulation of MYC phosphorylation, leading to an in vivo demonstration of a strategy for inhibiting MYC activity without detrimental physiological effects.
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Affiliation(s)
- Kevin Myant
- The Beatson Institute for Cancer Research, Glasgow G61 1BD, UK
| | - Xi Qiao
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Department of Pathology, University of Turku, 20520 Turku, Finland
| | - Tuuli Halonen
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Christophe Come
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Anni Laine
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Mahnaz Janghorban
- Department of Molecular and Medical Genetics and Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Johanna I Partanen
- Research Programs Unit, Translational Cancer Biology and Institute of Biomedicine, University of Helsinki, 00014 Helsinki, Finland
| | - John Cassidy
- The Beatson Institute for Cancer Research, Glasgow G61 1BD, UK
| | - Erinn-Lee Ogg
- The Beatson Institute for Cancer Research, Glasgow G61 1BD, UK
| | | | - Tiina Laiterä
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Juha Okkeri
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Juha Klefström
- Research Programs Unit, Translational Cancer Biology and Institute of Biomedicine, University of Helsinki, 00014 Helsinki, Finland
| | - Rosalie C Sears
- Department of Molecular and Medical Genetics and Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Owen J Sansom
- The Beatson Institute for Cancer Research, Glasgow G61 1BD, UK.
| | - Jukka Westermarck
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Department of Pathology, University of Turku, 20520 Turku, Finland.
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Golebiewska A, Fritah S, Girotti MR. OECI-EACR precision medicine for cancer: Conference report 1-4 March 2015, Luxembourg. Ecancermedicalscience 2015; 9:519. [PMID: 25932043 PMCID: PMC4404038 DOI: 10.3332/ecancer.2015.519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Indexed: 11/25/2022] Open
Abstract
The ‘Precision Medicine for Cancer’ was the first meeting of a new series of conferences organised biannually by the European Association for Cancer Research (EACR) and the Organisation for European Cancer Institutes (OECI). The main objective of the meeting was to focus on novel topics in precision medicine by allowing strong interactions between participants and to access the speakers easily. As the first implementations of personalised medicine are appreciated in the clinic, the aim of the meeting was to further educate both researchers and clinicians and learn more from the novel approaches in the field. Similarly, the interaction between two organisations—the research-oriented EACR and the clinic-oriented OECI—was of a great value for the meeting. This OECI-EACR 2015 report will highlight the major findings of this outstanding meeting.
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Affiliation(s)
- Anna Golebiewska
- NORLUX Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health (L.I.H), Luxembourg, L-1526 Luxembourg
| | - Sabrina Fritah
- NORLUX Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health (L.I.H), Luxembourg, L-1526 Luxembourg
| | - Maria Romina Girotti
- Molecular Oncology Group, Cancer Research UK Manchester Institute, Manchester, M20 4BX, UK
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