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Shender VO, Anufrieva KS, Shnaider PV, Arapidi GP, Pavlyukov MS, Ivanova OM, Malyants IK, Stepanov GA, Zhuravlev E, Ziganshin RH, Butenko IO, Bukato ON, Klimina KM, Veselovsky VA, Grigorieva TV, Malanin SY, Aleshikova OI, Slonov AV, Babaeva NA, Ashrafyan LA, Khomyakova E, Evtushenko EG, Lukina MM, Wang Z, Silantiev AS, Nushtaeva AA, Kharlampieva DD, Lazarev VN, Lashkin AI, Arzumanyan LK, Petrushanko IY, Makarov AA, Lebedeva OS, Bogomazova AN, Lagarkova MA, Govorun VM. Therapy-induced secretion of spliceosomal components mediates pro-survival crosstalk between ovarian cancer cells. Nat Commun 2024; 15:5237. [PMID: 38898005 PMCID: PMC11187153 DOI: 10.1038/s41467-024-49512-6] [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] [Received: 02/04/2022] [Accepted: 06/07/2024] [Indexed: 06/21/2024] Open
Abstract
Ovarian cancer often develops resistance to conventional therapies, hampering their effectiveness. Here, using ex vivo paired ovarian cancer ascites obtained before and after chemotherapy and in vitro therapy-induced secretomes, we show that molecules secreted by ovarian cancer cells upon therapy promote cisplatin resistance and enhance DNA damage repair in recipient cancer cells. Even a short-term incubation of chemonaive ovarian cancer cells with therapy-induced secretomes induces changes resembling those that are observed in chemoresistant patient-derived tumor cells after long-term therapy. Using integrative omics techniques, we find that both ex vivo and in vitro therapy-induced secretomes are enriched with spliceosomal components, which relocalize from the nucleus to the cytoplasm and subsequently into the extracellular vesicles upon treatment. We demonstrate that these molecules substantially contribute to the phenotypic effects of therapy-induced secretomes. Thus, SNU13 and SYNCRIP spliceosomal proteins promote therapy resistance, while the exogenous U12 and U6atac snRNAs stimulate tumor growth. These findings demonstrate the significance of spliceosomal network perturbation during therapy and further highlight that extracellular signaling might be a key factor contributing to the emergence of ovarian cancer therapy resistance.
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Affiliation(s)
- Victoria O Shender
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation.
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation.
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russian Federation.
| | - Ksenia S Anufrieva
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Polina V Shnaider
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
- Faculty of Biology; Lomonosov Moscow State University, Moscow, 119991, Russian Federation
| | - Georgij P Arapidi
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russian Federation
- Moscow Institute of Physics and Technology (State University), Dolgoprudny, 141701, Russian Federation
| | - Marat S Pavlyukov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russian Federation
| | - Olga M Ivanova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Irina K Malyants
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
- Faculty of Chemical-Pharmaceutical Technologies and Biomedical Drugs, Mendeleev University of Chemical Technology of Russia, Moscow, 125047, Russian Federation
| | - Grigory A Stepanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, 630090, Russia
| | - Evgenii Zhuravlev
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
| | - Rustam H Ziganshin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russian Federation
| | - Ivan O Butenko
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Olga N Bukato
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Ksenia M Klimina
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Vladimir A Veselovsky
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | | | | | - Olga I Aleshikova
- National Medical Scientific Centre of Obstetrics, Gynaecology and Perinatal Medicine named after V.I. Kulakov, Moscow, 117198, Russian Federation
- Russian Research Center of Roentgenology and Radiology, Moscow, 117997, Russian Federation
| | - Andrey V Slonov
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Nataliya A Babaeva
- National Medical Scientific Centre of Obstetrics, Gynaecology and Perinatal Medicine named after V.I. Kulakov, Moscow, 117198, Russian Federation
- Russian Research Center of Roentgenology and Radiology, Moscow, 117997, Russian Federation
| | - Lev A Ashrafyan
- National Medical Scientific Centre of Obstetrics, Gynaecology and Perinatal Medicine named after V.I. Kulakov, Moscow, 117198, Russian Federation
- Russian Research Center of Roentgenology and Radiology, Moscow, 117997, Russian Federation
| | | | - Evgeniy G Evtushenko
- Faculty of Chemistry; Lomonosov Moscow State University, Moscow, 119991, Russian Federation
| | - Maria M Lukina
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Zixiang Wang
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Jinan, 250012, Shandong, China
| | - Artemiy S Silantiev
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Anna A Nushtaeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
| | - Daria D Kharlampieva
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Vassili N Lazarev
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Arseniy I Lashkin
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Lorine K Arzumanyan
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Irina Yu Petrushanko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russian Federation
| | - Alexander A Makarov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russian Federation
| | - Olga S Lebedeva
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Alexandra N Bogomazova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russian Federation
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Maria A Lagarkova
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency, Moscow, 119435, Russian Federation
| | - Vadim M Govorun
- Research Institute for Systems Biology and Medicine, Moscow, 117246, Russian Federation
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Hrvat A, Benders S, Kimmig R, Brandau S, Mallmann-Gottschalk N. Immunoglobulins and serum proteins impair anti-tumor NK cell effector functions in malignant ascites. Front Immunol 2024; 15:1360615. [PMID: 38646521 PMCID: PMC11026578 DOI: 10.3389/fimmu.2024.1360615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/20/2024] [Indexed: 04/23/2024] Open
Abstract
Introduction Malignant ascites indicates ovarian cancer progression and predicts poor clinical outcome. Various ascites components induce an immunosuppressive crosstalk between tumor and immune cells, which is poorly understood. In our previous study, imbalanced electrolytes, particularly high sodium content in malignant ascites, have been identified as a main immunosuppressive mechanism that impaired NK and T-cell activity. Methods In the present study, we explored the role of high concentrations of ascites proteins and immunoglobulins on antitumoral NK effector functions. To this end, a coculture system consisting of healthy donor NK cells and ovarian cancer cells was used. The anti-EGFR antibody Cetuximab was added to induce antibody-dependent cellular cytotoxicity (ADCC). NK activity was assessed in the presence of different patient ascites samples and immunoglobulins that were isolated from ascites. Results Overall high protein concentration in ascites impaired NK cell degranulation, conjugation to tumor cells, and intracellular calcium signaling. Immunoglobulins isolated from ascites samples competitively interfered with NK ADCC and inhibited the conjugation to target cells. Furthermore, downregulation of regulatory surface markers CD16 and DNAM-1 on NK cells was prevented by ascites-derived immunoglobulins during NK cell activation. Conclusion Our data show that high protein concentrations in biological fluids are able to suppress antitumoral activity of NK cells independent from the mechanism mediated by imbalanced electrolytes. The competitive interference between immunoglobulins of ascites and specific therapeutic antibodies could diminish the efficacy of antibody-based therapies and should be considered in antibody-based immunotherapies.
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Affiliation(s)
- Antonio Hrvat
- Experimental and Translational Research, Department of Otorhinolaryngology, University Hospital Essen, Essen, Germany
| | - Sonja Benders
- Experimental and Translational Research, Department of Otorhinolaryngology, University Hospital Essen, Essen, Germany
- Department for Trauma Surgery and Orthopedics, St. Joseph Hospital Kupferdreh, Essen, Germany
| | - Rainer Kimmig
- Department of Gynecology and Obstetrics, University Hospital Essen, Essen, Germany
| | - Sven Brandau
- Experimental and Translational Research, Department of Otorhinolaryngology, University Hospital Essen, Essen, Germany
- German Cancer Consortium, Partner Site Essen-Düsseldorf, Essen, Germany
| | - Nina Mallmann-Gottschalk
- Experimental and Translational Research, Department of Otorhinolaryngology, University Hospital Essen, Essen, Germany
- Department of Gynecology and Obstetrics, University Hospital Cologne, Cologne, Germany
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3
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Almeida-Nunes DL, Silvestre R, Dinis-Oliveira RJ, Ricardo S. Enhancing Immunotherapy in Ovarian Cancer: The Emerging Role of Metformin and Statins. Int J Mol Sci 2023; 25:323. [PMID: 38203494 PMCID: PMC10779012 DOI: 10.3390/ijms25010323] [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: 11/25/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Ovarian cancer metastization is accompanied by the development of malignant ascites, which are associated with poor prognosis. The acellular fraction of this ascitic fluid contains tumor-promoting soluble factors, bioactive lipids, cytokines, and extracellular vesicles, all of which communicate with the tumor cells within this peritoneal fluid. Metabolomic profiling of ovarian cancer ascites has revealed significant differences in the pathways of fatty acids, cholesterol, glucose, and insulin. The proteins involved in these pathways promote tumor growth, resistance to chemotherapy, and immune evasion. Unveiling the key role of this liquid tumor microenvironment is crucial for discovering more efficient treatment options. This review focuses on the cholesterol and insulin pathways in ovarian cancer, identifying statins and metformin as viable treatment options when combined with standard chemotherapy. These findings are supported by clinical trials showing improved overall survival with these combinations. Additionally, statins and metformin are associated with the reversal of T-cell exhaustion, positioning these drugs as potential combinatory strategies to improve immunotherapy outcomes in ovarian cancer patients.
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Affiliation(s)
- Diana Luísa Almeida-Nunes
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto, 4200-135 Porto, Portugal;
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal;
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal;
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Ricardo Jorge Dinis-Oliveira
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal;
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4169-007 Porto, Portugal
- Department of Public Health and Forensic Sciences, and Medical Education, Faculty of Medicine, University of Porto, 4169-007 Porto, Portugal
- FOREN—Forensic Science Experts, 1400-136 Lisboa, Portugal
| | - Sara Ricardo
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto, 4200-135 Porto, Portugal;
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal;
- Faculty of Medicine, University of Porto, 4169-007 Porto, Portugal
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4
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Immune Tumor Microenvironment in Ovarian Cancer Ascites. Int J Mol Sci 2022; 23:ijms231810692. [PMID: 36142615 PMCID: PMC9504085 DOI: 10.3390/ijms231810692] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/26/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Ovarian cancer (OC) has a specific type of metastasis, via transcoelomic, and most of the patients are diagnosed at advanced stages with multiple tumors spread within the peritoneal cavity. The role of Malignant Ascites (MA) is to serve as a transporter of tumor cells from the primary location to the peritoneal wall or to the surface of the peritoneal organs. MA comprise cellular components with tumor and non-tumor cells and acellular components, creating a unique microenvironment capable of modifying the tumor behavior. These microenvironment factors influence tumor cell proliferation, progression, chemoresistance, and immune evasion, suggesting that MA play an active role in OC progression. Tumor cells induce a complex immune suppression that neutralizes antitumor immunity, leading to disease progression and treatment failure, provoking a tumor-promoting environment. In this review, we will focus on the High-Grade Serous Carcinoma (HGSC) microenvironment with special attention to the tumor microenvironment immunology.
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5
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Liang X, Ju J. Matrine inhibits ovarian cancer cell viability and promotes apoptosis by regulating the ERK/JNK signaling pathway via p38MAPK. Oncol Rep 2021; 45:82. [PMID: 33786627 PMCID: PMC8025149 DOI: 10.3892/or.2021.8033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 01/14/2021] [Indexed: 02/07/2023] Open
Abstract
Ovarian cancer displays the highest mortality rate among all types of gynecological cancer worldwide. The survival of patients with ovarian cancer remains poor due to poor responses to anticancer treatments. The present study aimed to investigate the therapeutic effects and potential mechanism underlying matrine in ovarian cancer tissues, ovarian cancer cells and a CAOV‑3‑derived tumor‑bearing mouse model. MTT, migration, invasion, flow cytometry, immunofluorescence and immunohistochemistry assays were performed to assess the inhibitory effects of matrine on ovarian cancer. A xenograft ovarian cancer mouse model was established and treated with matrine or PBS. The results demonstrated that compared with the control group, matrine significantly induced ovarian cancer cell apoptosis by upregulating caspase‑8 and Fas cell surface death receptor (Fas) expression levels, and downregulating Bcl‑2 and Bcl‑xl expression levels. Moreover, compared with the control group, matrine significantly inhibited ovarian cancer cell viability, migration and invasion by downregulating metastasis associated protein‑1, fibronectin, angiotensin II type 2 receptor-interacting protein 3a and H high mobility group AT‑hook 2 expression levels. Compared with the control group, matrine significantly increased p38MAPK, phosphorylated (p)ERK/ERK and pJNK/JNK expression levels in ovarian cancer cells. p38MAPK knockdown significantly downregulated p38MAPK, pERK/ERK and pJNK/JNK expression levels compared with the control group, which significantly promoted ovarian cancer cell viability, migration and invasion. In vivo experiments demonstrated that compared with the control group, matrine significantly suppressed tumor growth by markedly upregulating p38MAPK, ERK and JNK expression levels. The immunohistochemistry results demonstrated that caspase‑8 and Fas expression levels were notably increased, whereas Bcl‑2 and Bcl‑xl expression levels were obviously decreased in matrine‑treated tumors compared with PBS‑treated tumors. In conclusion, the present study demonstrated that matrine inhibited ovarian cancer cell viability, migration and invasion, but induced cell apoptosis, suggesting that matrine may serve as a promising anticancer agent for the treatment of ovarian cancer.
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Affiliation(s)
- Xin Liang
- Discipline Inspection and Supervision Division, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang 157000, P.R. China
| | - Jianxin Ju
- Xiangyang Community, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang 157000, P.R. China
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6
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Vargas-Villarreal J, Cruz-Ramos M, Espino-Ojeda A, Gutierrez-Hermosillo H, Díaz De Leon-Gonzalez E, Monsivais-Diaz O, Palacios-Corona R, Martinez-Armenta CA, González-Salazar F, Moreno-Treviño MG, Guzman-De La Garza FJ. Acellular fraction from malignant effusions has cytotoxicity in breast cancer cells. Mol Clin Oncol 2021; 14:106. [PMID: 33796293 DOI: 10.3892/mco.2021.2268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 01/22/2021] [Indexed: 11/06/2022] Open
Abstract
Malignant ascites (MA) and malignant pleural effusion (MPE) are frequently developed in patients with metastatic cancer; however, the biological properties of these fluids have not been clarified. The present study explored the biological role of a low molecular fraction derived from malignant effusions on the activation of peripheral blood mononuclear cells and on the proliferation of breast cancer cells and fibroblast 55x cells. A <10-kDa fraction from effusions of 41 oncological patients and 34 individuals without cancer was purified, and its potential role in inhibiting nitric oxide (NO) production on lipopolysaccharide (LPS)-stimulated peripheral blood mononuclear cells was explored, as well as its cytotoxicity on MCF-7 breast cancer cells and fibroblast 55x cells. A significant decrease in NO production was observed in the <10-kDa fraction from malignant effusions. In addition, the acellular fraction from MA decreased the viability of breast cancer cells without affecting human fibroblasts. These data support the presence of low molecular weight molecules in malignant samples with a specific role in inhibiting the defense mechanisms of peripheral blood mononuclear cells and decreasing the viability of breast cancer cells in vitro.
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Affiliation(s)
- Javier Vargas-Villarreal
- Centro de Investigación Biomedica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo Leon 64720, Mexico.,Basic Sciences Department, School of Medicine, University of Monterrey, San Pedro Garza García, Nuevo Leon 66238, Mexico
| | - Marlid Cruz-Ramos
- Translational Oncology Division, Oncohealth Institute, Health Research Institute of The Jiménez Díaz Foundation, Autonomous University of Madrid, Madrid 28030, Spain
| | - Alba Espino-Ojeda
- Department of Neurology, Tecnologico de Monterrey, Monterrey, Nuevo Leon 64700, Mexico
| | - Hugo Gutierrez-Hermosillo
- High Specialty Medical Unit 1, Bajio National Medical Center, Instituto Mexicano del Seguro Social, Leon, Guanajuato 37328, Mexico.,Aranda de la Parra Hospital, Leon, Guanajuato 3700, Mexico
| | - Enrique Díaz De Leon-Gonzalez
- High Specialty Medical Unit 21, Hospital of Traumatology and Orthopedics, Instituto Mexicano Del Seguro Social, Monterrey, Nuevo Leon 64000, Mexico
| | - Ofelia Monsivais-Diaz
- Centro de Investigación Biomedica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo Leon 64720, Mexico
| | - Rebeca Palacios-Corona
- Centro de Investigación Biomedica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo Leon 64720, Mexico
| | | | - Francisco González-Salazar
- Centro de Investigación Biomedica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo Leon 64720, Mexico.,Basic Sciences Department, School of Medicine, University of Monterrey, San Pedro Garza García, Nuevo Leon 66238, Mexico
| | - Maria Guadalupe Moreno-Treviño
- Basic Sciences Department, School of Medicine, University of Monterrey, San Pedro Garza García, Nuevo Leon 66238, Mexico
| | - Francisco Javier Guzman-De La Garza
- Centro de Investigación Biomedica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo Leon 64720, Mexico.,School of Medicine, Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo Leon 64460, Mexico
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7
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Lu Z, Wu C, Zhu M, Song W, Wang H, Wang J, Guo J, Li N, Liu J, Li Y, Xu H. Ophiopogonin D' induces RIPK1‑dependent necroptosis in androgen‑dependent LNCaP prostate cancer cells. Int J Oncol 2019; 56:439-447. [PMID: 31894265 PMCID: PMC6959467 DOI: 10.3892/ijo.2019.4945] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022] Open
Abstract
Ophiopogonin D' (OPD') is a natural compound extracted from Ophiopogon japonicus, which is a plant used in traditional Chinese medicine. Our previous study has indicated that OPD' exhibits antitumor activity against androgen-independent prostate cancer (PCa), but the effects and the underlying molecular mechanism of action of OPD' in androgen-dependent PCa were unclear. In the present study, OPD' induced significant necroptosis in androgen-dependent LNCaP cancer cells by activating receptor-interacting serine/threonine-protein kinase 1 (RIPK1). Exposure to OPD' also increased Fas ligand (FasL)-dependent RIPK1 protein expression. The OPD'-induced necroptosis was inhibited by a RIPK1 inhibitor necrostatin-1, further supporting a role for RIPK1 in the effects of OPD´. The antitumor effects of OPD' were also inhibited by a mixed lineage kinase domain-like protein (MLKL) inhibitor necrosulfonamide. Following treatment with inhibitors of RIPK1 and MLKL, the effects of OPD' on LNCaP cells were inhibited in an additive manner. In addition, co-immunoprecipitation assays demonstrated that OPD' induced RIPK3 upregulation, leading to the assembly of a RIPK3-MLKL complex, which was independent of RIPK1. Furthermore, OPD' increased the expression of Fas-associated death domain, which is required to induce necroptosis in LNCaP cells. OPD' also regulated the expression levels of FasL, androgen receptor and prostate-specific antigen in a RIPK1-dependent manner. These results suggested that OPD' may exhibit potential as an anti-PCa agent by inducing RIPK1- and MLKL-dependent necroptosis.
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Affiliation(s)
- Zongliang Lu
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Changpeng Wu
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Mingxing Zhu
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Wei Song
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - He Wang
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Jiajia Wang
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Jing Guo
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Na Li
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Jie Liu
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
| | - Yanwu Li
- Pharmacy College, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hongxia Xu
- Department of Clinical Nutrition, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, P.R. China
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8
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Ribaux P, Britan A, Thumann G, Delie F, Petignat P, Cohen M. Malignant ascites: a source of therapeutic protein against ovarian cancer? Oncotarget 2019; 10:5894-5905. [PMID: 31666922 PMCID: PMC6800269 DOI: 10.18632/oncotarget.27185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/12/2019] [Indexed: 12/11/2022] Open
Abstract
Ovarian cancer is the fifth leading cause of cancer-related death in the world. Some ovarian cancer patients present large amount of ascites at the time of diagnosis which may play an active role in tumor development. In earlier studies, we demonstrated that the acellular fraction of ascites can induce apoptosis of ovarian cancer cells. The current study identifies pigment epithelium derived factor (PEDF) as the molecule responsible for the apoptotic effect of ascites and evaluates the Sleeping Beauty transposon (SBT) system as a new tool for PEDF gene therapy against ovarian cancer. We utilize gel filtration, mass spectrometry, affinity column, cell viability assay, tumor development on chick chorioallantoic membrane and molecular biology techniques for these purposes. PEDF was thus identified as the agent responsible for the effects of ascites on ovarian cancer cell viability and tumor growth. Interestingly, the PEDF expression is decreased in ovarian cancer cells compared to healthy ovarian cells. However, the level of PEDF is higher in ascites than in serum of ovarian cancer patients suggesting that cells present in the tumor environment are able to secrete PEDF. We then used the SBT system to stably induce PEDF expression in ovarian cancer cells. The overexpression of PEDF significantly reduced the tumor growth derived from these cells. In conclusion, the results presented here establish that PEDF is a therapeutic target and that PEDF from ascites or SBT could be utilized as a therapeutic strategy for the treatment of ovarian cancer.
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Affiliation(s)
- Pascale Ribaux
- Department of Pediatrics, Gynaecology and Obstetrics, Faculty of Medicine, Geneva 1206, Switzerland.,Translational Research Center in Oncohaematology, Faculty of Medicine, Geneva 1206, Switzerland
| | - Aurore Britan
- Department of Pediatrics, Gynaecology and Obstetrics, Faculty of Medicine, Geneva 1206, Switzerland
| | - Gabriele Thumann
- Experimental Ophthalmology, University of Geneva, Geneva 1205, Switzerland.,Department of Ophthalmology, University Hospitals of Geneva, Geneva 1205, Switzerland
| | - Florence Delie
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Geneva 1205, Switzerland
| | - Patrick Petignat
- Department of Pediatrics, Gynaecology and Obstetrics, Faculty of Medicine, Geneva 1206, Switzerland
| | - Marie Cohen
- Department of Pediatrics, Gynaecology and Obstetrics, Faculty of Medicine, Geneva 1206, Switzerland.,Translational Research Center in Oncohaematology, Faculty of Medicine, Geneva 1206, Switzerland
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9
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Pluchino N, Poppi G, Yart L, Marci R, Wenger JM, Tille JC, Cohen M. Effect of local aromatase inhibition in endometriosis using a new chick embryo chorioallantoic membrane model. J Cell Mol Med 2019; 23:5808-5812. [PMID: 31199588 PMCID: PMC6653393 DOI: 10.1111/jcmm.14372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 03/19/2019] [Accepted: 03/30/2019] [Indexed: 01/22/2023] Open
Abstract
Endometriosis is an oestrogen‐dependent, inflammation‐driven gynaecologic disorder causing severe disability. Endometriosis implants are characterized by unbalanced local oestrogen metabolism leading to hyperoestrogenism and aromatase up‐regulation is one of main mechanism involved. Aromatase inhibitors such as letrozole or anastrozole use in young women are associated with severely side effects limiting their long‐term clinical use. An endometriosis‐targeted inhibition of local aromatase could be a viable alternative, although the role of the local inhibition of this enzyme is still unclear. Using a new chick embryo allantoic membrane (CAM) model incorporating xenografted human endometriosis cyst, we showed that topical treatment with anastrozole reduced lesion size, although oestrogens produced by CAM female embryo blunted this effect. Xenografted human endometriosis CAM is a new efficient model for the screening of new drugs targeting endometriosis tissue.
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Affiliation(s)
- Nicola Pluchino
- Division of Obstetrics and Gynecology, University Hospital of Geneva, Geneva, Switzerland
| | - Giorgia Poppi
- Division of Obstetrics and Gynecology, University Hospital of Geneva, Geneva, Switzerland
| | - Lucile Yart
- Division of Obstetrics and Gynecology, University Hospital of Geneva, Geneva, Switzerland
| | - Roberto Marci
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Jean-Marie Wenger
- Division of Obstetrics and Gynecology, University Hospital of Geneva, Geneva, Switzerland
| | | | - Marie Cohen
- Division of Obstetrics and Gynecology, University Hospital of Geneva, Geneva, Switzerland
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10
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Nguyen DD, Lee DG, Kim S, Kang K, Rhee JK, Chang S. Integrative Bioinformatics and Functional Analyses of GEO, ENCODE, and TCGA Reveal FADD as a Direct Target of the Tumor Suppressor BRCA1. Int J Mol Sci 2018; 19:ijms19051458. [PMID: 29757984 PMCID: PMC5983697 DOI: 10.3390/ijms19051458] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 04/26/2018] [Accepted: 05/11/2018] [Indexed: 01/06/2023] Open
Abstract
BRCA1 is a multifunctional tumor suppressor involved in several essential cellular processes. Although many of these functions are driven by or related to its transcriptional/epigenetic regulator activity, there has been no genome-wide study to reveal the transcriptional/epigenetic targets of BRCA1. Therefore, we conducted a comprehensive analysis of genomics/transcriptomics data to identify novel BRCA1 target genes. We first analyzed ENCODE data with BRCA1 chromatin immunoprecipitation (ChIP)-sequencing results and identified a set of genes with a promoter occupied by BRCA1. We collected 3085 loci with a BRCA1 ChIP signal from four cell lines and calculated the distance between the loci and the nearest gene transcription start site (TSS). Overall, 66.5% of the BRCA1-bound loci fell into a 2-kb region around the TSS, suggesting a role in transcriptional regulation. We selected 45 candidate genes based on gene expression correlation data, obtained from two GEO (Gene Expression Omnibus) datasets and TCGA data of human breast cancer, compared to BRCA1 expression levels. Among them, we further tested three genes (MEIS2, CKS1B and FADD) and verified FADD as a novel direct target of BRCA1 by ChIP, RT-PCR, and a luciferase reporter assay. Collectively, our data demonstrate genome-wide transcriptional regulation by BRCA1 and suggest target genes as biomarker candidates for BRCA1-associated breast cancer.
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Affiliation(s)
- Dinh-Duc Nguyen
- Department of Biomedical Sciences, University of Ulsan School of Medicine, Asan Medical Center, Seoul 05505, Korea.
- Department of Physiology, University of Ulsan School of Medicine, Asan Medical Center, Seoul 05505, Korea.
| | - Dong Gyu Lee
- Department of Biomedical Sciences, University of Ulsan School of Medicine, Asan Medical Center, Seoul 05505, Korea.
| | - Sinae Kim
- Department of Biomedical Sciences, University of Ulsan School of Medicine, Asan Medical Center, Seoul 05505, Korea.
| | - Keunsoo Kang
- Department of Microbiology, College of Natural Sciences, Dankook University, Cheonan 31116, Korea.
| | - Je-Keun Rhee
- Cancer Research Institute, Catholic University of Korea, Seoul 06591, Korea.
| | - Suhwan Chang
- Department of Biomedical Sciences, University of Ulsan School of Medicine, Asan Medical Center, Seoul 05505, Korea.
- Department of Physiology, University of Ulsan School of Medicine, Asan Medical Center, Seoul 05505, Korea.
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11
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Lou Y, Jiang H, Cui Z, Wang X, Wang L, Han Y. Gene microarray analysis of lncRNA and mRNA expression profiles in patients with high‑grade ovarian serous cancer. Int J Mol Med 2018; 42:91-104. [PMID: 29577163 PMCID: PMC5979786 DOI: 10.3892/ijmm.2018.3588] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 03/16/2018] [Indexed: 12/15/2022] Open
Abstract
High-grade ovarian serous cancer is known for its high rates of invasion and metastasis, and resultant high mortality rate. Therefore, research concerning biomarkers and underlying molecular mechanisms of high-grade ovarian serous cancer progression and prognosis are urgently required. Long non-coding RNAs (lncRNAs) have been the subject of an increasing number of studies, and certain lncRNAs have been demonstrated to serve an important function in the development and progression of various cancers, including HOX transcript antisense RNA, competing endogenous lncRNA 2 for microRNA let-7b, urothelial cancer associated 1, and H19, imprinted maternally expressed transcript (non-protein coding). However, few studies have investigated the differential expression of lncRNAs in high-grade ovarian serous cancer. In the present study, differences in lncRNA and mRNA expression profiles between high-grade ovarian serous cancer tissue samples and healthy fallopian tube tissue samples were investigated using microarray analysis, and the differential expression of lncRNAs and mRNAs was confirmed by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Then, five abnormally expressed lncRNAs were selected, and the associations between these lncRNAs and ovarian cancer clinicopathological parameters were examined using RT-qPCR. The expression profiles of certain lncRNAs and mRNAs were confirmed to be altered between high-grade ovarian serous cancer tissues and healthy fallopian tube tissues. Furthermore, the expression levels of selected lncRNAs were associated with International Federation of Gynecology and Obstetrics stage and lymph node metastasis. These lncRNAs and mRNAs may therefore be involved in the pathogenesis of high-grade ovarian serous cancer. The results of the present study provide an experimental foundation for further exploration of the value of these lncRNAs and mRNAs in the early diagnosis and treatment of high-grade ovarian serous cancer.
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Affiliation(s)
- Yanhui Lou
- Department of Gynecology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Huanhuan Jiang
- Department of Gynecology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Zhumei Cui
- Department of Gynecology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Xiangyu Wang
- Department of Gynecology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Lingzhi Wang
- Department of Gynecology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Yi Han
- Department of Gynecology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266100, P.R. China
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12
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Ding F, Liu T, Yu N, Li S, Zhang X, Zheng G, Lv C, Mou K, Xu J, Li B, Wang S, Song H. Nitidine chloride inhibits proliferation, induces apoptosis via the Akt pathway and exhibits a synergistic effect with doxorubicin in ovarian cancer cells. Mol Med Rep 2016; 14:2853-9. [PMID: 27485415 DOI: 10.3892/mmr.2016.5577] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 07/04/2016] [Indexed: 11/06/2022] Open
Abstract
Nitidine chloride (NC) exhibits anti-tumor properties in various types of tumor. However, to the best of our knowledge there is no previous evidence of NC involvement in the apoptosis or proliferation of ovarian cancer cells and the underlying molecular mechanisms. The present study aimed to investigate the influence of NC on the viability and apoptosis of ovarian cancer cells and the synergistic effect NC and doxorubicin (DOX) may have on ovarian cancer cells. The viability and proliferation of ovarian cancer cells were examined using a methyl thiazolyl tetrazolium assay and 3H-thymidine incorporation assay. The apoptotic rate of ovarian cancer cells was detected by flow cytometry. The expression of apoptosis‑associated proteins and Akt serine/threonine kinase 1 (Akt) were determined by western blot analysis following NC treatment. The inhibitory effect of NC on the proliferation of ovarian cancer cells was demonstrated in a time and dose‑dependent manner. The pro-apoptotic effect of NC on ovarian cancer cells was also observed. It was determined that NC significantly downregulated the protein expression levels of B‑cell CLL/lymphoma 2 (Bcl-2) and upregulated the expression of Bcl‑2‑associated X protein, p53, caspase‑3 and ‑9. NC suppressed Akt phosphorylation. Additionally, the present study demonstrated that the effect of NC on the proliferation and apoptosis of ovarian cancer cells was Akt‑dependent by using the phosphatidylinositol-4,5-bisphosphate 3-kinase/Akt signaling pathway inhibitor, LY294002. NC exhibited a synergistic inhibitory effect on the viability of ovarian cancer cells when combined with DOX. The current study demonstrated that NC inhibited the proliferation and induced the apoptosis of ovarian cancer cells via the Akt signaling pathway and highlighted its potential clinical application for the treatment of ovarian cancer.
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Affiliation(s)
- Feng Ding
- Department of Gynecology and Obsterics, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Tianfeng Liu
- Department of Gynecology and Obsterics, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Nina Yu
- Department of Gynecology and Obsterics, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Shihong Li
- Department of Gynecology and Obsterics, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Xiaofei Zhang
- Department of Gynecology and Obsterics, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Guanghong Zheng
- Department of Gynecology and Obsterics, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Chunming Lv
- Prenatal Diagnosis Center, Zibo Maternal and Child Health Hospital, Zibo, Shandong 255000, P.R. China
| | - Kai Mou
- Prenatal Diagnosis Center, Zibo Maternal and Child Health Hospital, Zibo, Shandong 255000, P.R. China
| | - Jia Xu
- Prenatal Diagnosis Center, Zibo Maternal and Child Health Hospital, Zibo, Shandong 255000, P.R. China
| | - Bo Li
- Department of Cardiology, Central Hospital of Zibo, Zibo, Shandong 255036, P.R. China
| | - Surong Wang
- Department of Gynecology and Obsterics, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Haibo Song
- Prenatal Diagnosis Center, Zibo Maternal and Child Health Hospital, Zibo, Shandong 255000, P.R. China
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13
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Zhang W, Luo J, Chen F, Yang F, Song W, Zhu A, Guan X. BRCA1 regulates PIG3-mediated apoptosis in a p53-dependent manner. Oncotarget 2016; 6:7608-18. [PMID: 25797244 PMCID: PMC4480703 DOI: 10.18632/oncotarget.3263] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Accepted: 01/31/2015] [Indexed: 11/25/2022] Open
Abstract
BRCA1 plays a key role in the regulation of p53-dependent target gene transcription activation. Meanwhile, the p53 inducible gene 3 (PIG3) is a downstream target of p53 and is involved in p53-initiated apoptosis. However, little is known about whether BRCA1 can regulate PIG3-mediated apoptosis. Using a tissue microarray containing 149 breast cancer patient samples, we found that BRCA1 and PIG3 expression status were significantly positively correlated (r = 0.678, P < 0.001) and identified a significant positive correlation between high expression of BRCA1 and/or PIG3 and overall survival (OS). Moreover, we reveal that overexpression of BRCA1 significantly increased expression of PIG3 in cells with intact p53, whereas no increase in PIG3 was observed in p53-null MDA-MB-157 cells and p53-depleted HCT116p53−/− cells. Meanwhile, ectopic expression of BRCA1 could not lead to an increase expression level of prohibitin (PHB), which we have previously identified to induce PIG3-mediated apoptosis. Finally, ChIP analysis revealed that PHB can bind to the PIG3 promoter and activate PIG3 transcription independent of p53, although p53 presence did enhance this process. Taken together, our findings suggest that BRCA1 regulates PIG3-mediated apoptosis in a p53-dependent manner, and that PIG3 expression is associated with a better OS in breast cancer patients.
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Affiliation(s)
- Wenwen Zhang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Jiayan Luo
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Fengxia Chen
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Fang Yang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Wei Song
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Southern Medical University, Guangzhou 510282, China
| | - Aiyu Zhu
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Southern Medical University, Guangzhou 510282, China
| | - Xiaoxiang Guan
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China.,Department of Medical Oncology, Jinling Hospital, School of Medicine, Southern Medical University, Guangzhou 510282, China
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14
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Dupertuis YM, Delie F, Cohen M, Pichard C. In ovo method for evaluating the effect of nutritional therapies on tumor development, growth and vascularization. CLINICAL NUTRITION EXPERIMENTAL 2015. [DOI: 10.1016/j.yclnex.2015.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Affiliation(s)
- Marie Cohen
- a Department of Gynecology-Obstetrics; Faculty of Medicine; Geneva, Switzerland
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16
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Huang Y, Zhao M, Xu H, Wang K, Fu Z, Jiang Y, Yao Z. RASAL2 down-regulation in ovarian cancer promotes epithelial-mesenchymal transition and metastasis. Oncotarget 2015; 5:6734-45. [PMID: 25216515 PMCID: PMC4196159 DOI: 10.18632/oncotarget.2244] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Ovarian cancer is the most lethal gynecologic malignancy, and transcoelomic metastasis is responsible for the greatest disease mortality. Although intensive efforts have been made, the mechanism behind this process remains unclear. RASAL2 is a GTPase activating proteins (GAPs) which was recently reported as a tumor suppressor in breast cancer. In this study, we identified RASAL2 as a regulator of epithelial-mesenchymal transition (EMT) and metastasis in ovarian cancer. RASAL2 was down-regulated in ovarian cancer samples compared with normal tissue samples, especially in advanced stages and grades. RASAL2 knockdown in ovarian cancer cell lines promoted in vitro anchorage-independent growth, cell migration and invasion and in vivo tumor formation. Moreover, we observed EMT in RASAL2-depleted cells. E-cadherin-mediated cell-cell adhesion was attenuated, and mesenchymal markers were up-regulated. Further investigation revealed that the oncogenic role of RASAL2 down-regulation was mediated by the Ras-ERK pathway. RASAL2 knockdown activated the Ras-ERK pathway, and inhibition of the pathway reversed the functional effects of RASAL2 depletion. Together, our results implicate RASAL2 as an EMT regulator and tumor suppressor in ovarian cancer, and down-regulation of RASAL2 promotes ovarian cancer progression.
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Affiliation(s)
- Yuting Huang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, P.R. China. Department of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P.R. China. These authors contributed equally to this work
| | - Meng Zhao
- Department of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P.R. China. These authors contributed equally to this work
| | - Haixu Xu
- Department of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P.R. China
| | - Ke Wang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, P.R. China
| | - Zheng Fu
- Department of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P.R. China
| | - Yuan Jiang
- Department of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P.R. China
| | - Zhi Yao
- Department of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P.R. China
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