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Kuzmanov A, Salemi S, Eberli D, Kranzbühler B. Regulation of prostate-specific membrane antigen (PSMA) expression in prostate cancer cells after treatment with dutasteride and lovastatin. Neoplasia 2024; 57:101045. [PMID: 39236400 PMCID: PMC11405815 DOI: 10.1016/j.neo.2024.101045] [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: 07/01/2024] [Revised: 07/31/2024] [Accepted: 08/26/2024] [Indexed: 09/07/2024]
Abstract
PSMA expression gradually increases from benign prostatic hyperplasia to adenocarcinoma of the prostate and is therefore used for the development of improved diagnostic (PSMA)-based prostate cancer imaging tools. Pharmacological induction of PSMA is therefore eminent to further improve the detection rate of PSMA-based imaging. Our previous studies have demonstrated that lovastatin (Lova) and dutasteride (Duta) are able to induce PSMA expression. However, the mechanisms by which PSMA is regulated in prostate cancer remain poorly understood. Androgen receptor (AR) and homeobox B13 (HOXB13) are the best known regulators of PSMA, hence in the present study we aimed to explore the PSMA regulation by HOXB13 and AR signaling in LNCaP and VCaP cells following treatments with Lova and Duta. Furthermore, our previous research revealed a growth arrest in prostate cancer cells after Lova, but not after Duta treatment. To understand this discrepancy, we explored the influence of Lova and Duta on well known tumor growth promoters, such as AR, the mTOR/Akt signaling pathways and Cyclin D1. Our results showed that treatment with Lova leads to a significant inhibition of the investigated tumor promoters and results in growth regression of LNCaP and VCaP cells. In contrast, Duta does not show these effects. Furthermore, we confirm the cooperative effect of HOXB13 and AR in regulating PSMA in LNCaP cells, and extend the investigations to an additional prostate cancer cell line (VCaP).
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Affiliation(s)
- Aleksandar Kuzmanov
- Department of Urology, University Hospital Zürich, University of Zurich, Laboratory for Urologic Oncology and Stem Cell Therapy, Zurich, Switzerland
| | - Souzan Salemi
- Department of Urology, University Hospital Zürich, University of Zurich, Laboratory for Urologic Oncology and Stem Cell Therapy, Zurich, Switzerland
| | - Daniel Eberli
- Department of Urology, University Hospital Zürich, University of Zurich, Laboratory for Urologic Oncology and Stem Cell Therapy, Zurich, Switzerland
| | - Benedikt Kranzbühler
- Department of Urology, University Hospital Zürich, University of Zurich, Laboratory for Urologic Oncology and Stem Cell Therapy, Zurich, Switzerland.
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2
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Seymour DJ, Kim JJM, Doelman J, Cant JP. Feed restriction of lactating cows triggers acute downregulation of mammary mammalian target of rapamycin signaling and chronic reduction of mammary epithelial mass. J Dairy Sci 2024; 107:5667-5680. [PMID: 38580148 DOI: 10.3168/jds.2023-24478] [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: 11/27/2023] [Accepted: 02/26/2024] [Indexed: 04/07/2024]
Abstract
While there is generally no consensus about how nutrients determine milk synthesis in the mammary gland, it is likely that the mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) plays a role as a key integrator of nutritional and mitogenic signals that can influence a multitude of catabolic and anabolic pathways. The objectives of this study were to evaluate acute changes (<24 h) in translational signaling, in addition to chronic changes (14 d) in mammary gland structure and composition, in response to a severe feed restriction. Fourteen lactating Holstein dairy cows were assigned to either ad libitum feeding (n = 7) or a restricted feeding program (n = 7). Feed-restricted cows had feed removed after the evening milking on d 0. Mammary biopsies and blood samples were collected 16 h after feed removal, after which cows in the restricted group were fed 60% of their previously observed ad libitum intake for the remainder of the study. On d 14, animals were slaughtered and their mammary glands dissected. In response to feed removal, an acute increase in plasma nonesterified fatty acid concentration was observed, concurrent to a decrease in milk yield. In mammary tissue, we observed downregulation of the mTORC1-S6K1 signaling cascade, in addition to reductions in mRNA expression of markers of protein synthesis, endoplasmic reticulum biogenesis, and cell turnover (i.e., transcripts associated with apoptosis or cell proliferation). During the 14 d of restricted feeding, animals underwent homeorhetic adaptation to 40% lower nutrient intake, achieving a new setpoint of 14% reduced milk yield with 18% and 29% smaller mammary secretory tissue DM and CP masses, respectively. On d 14, no treatment differences were observed in markers of protein synthesis or mammary cell turnover evaluated using gene transcripts and immunohistochemical staining. These findings implicate mTORC1-S6K1 in the early phase of the adaptation of the mammary gland's capacity for milk synthesis in response to changes in nutrient supply. Additionally, changes in rates of mammary cell turnover may be transient in nature, returning to basal levels following brief alterations that have sustained effects.
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Affiliation(s)
- D J Seymour
- Centre for Nutrition Modelling, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada.
| | - J J M Kim
- Centre for Nutrition Modelling, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada
| | - J Doelman
- Trouw Nutrition R&D, 5830 AE Boxmeer, the Netherlands
| | - J P Cant
- Centre for Nutrition Modelling, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada
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3
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Chi Z, Wang Q, Wang X, Li D, Tong L, Shi Y, Yang F, Guo Q, Zheng J, Chen Z. P4HA2 promotes proliferation, invasion, and metastasis through regulation of the PI3K/AKT signaling pathway in oral squamous cell carcinoma. Sci Rep 2024; 14:15023. [PMID: 38951593 PMCID: PMC11217378 DOI: 10.1038/s41598-024-64264-5] [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: 10/18/2023] [Accepted: 06/06/2024] [Indexed: 07/03/2024] Open
Abstract
Proline 4-hydroxylase 2 (P4HA2) is known for its hydroxylase activity, primarily involved in hydroxylating collagen precursors and promoting collagen cross-linking under physiological conditions. Although its overexpression influences a wide variety of malignant tumors' occurrence and development, its specific effects and mechanisms in oral squamous cell carcinoma (OSCC) remain unclear. This study focused on investigating the expression patterns, carcinogenic functions, and underlying mechanisms of P4HA2 in OSCC cells. Various databases, including TCGA, TIMER, UALCAN, GEPIA, and K-M plotter, along with paraffin-embedded samples, were used to ascertain P4HA2 expression in cancer and its correlation with clinicopathological features. P4HA2 knockdown and overexpression cell models were developed to assess its oncogenic roles and mechanisms. The results indicated that P4HA2 was overexpressed in OSCC and inversely correlated with patient survival. Knockdown of P4HA2 suppressed invasion, migration, and proliferation of OSCC cells both in vitro and in vivo, whereas overexpression of P4HA2 had the opposite effects. Mechanistically, the phosphorylation levels of the PI3K/AKT pathway were reduced following P4HA2 silencing. The study reveals that P4HA2 acts as a promising biomarker for predicting prognosis in OSCC and significantly affects metastasis, invasion, and proliferation of OSCC cells through the regulation of the PI3K/AKT signaling pathway.
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Affiliation(s)
- Zengpeng Chi
- Department of Stomatology, Qingdao Huangdao District Central Hospital, Qingdao, 266555, China
| | - Qimin Wang
- Department of Stomatology, Qingdao Hospital, University of Health and Rehabilitation Sciences(Qingdao Municipal Hospital), No.5 Donghai Middle Road, Qingdao, 266071, China
| | - Xin Wang
- Acupuncture and Tuina Department, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Dagang Li
- Department of Stomatology, Qingdao Huangdao District Central Hospital, Qingdao, 266555, China
| | - Lei Tong
- Department of Stomatology, Qingdao Hospital, University of Health and Rehabilitation Sciences(Qingdao Municipal Hospital), No.5 Donghai Middle Road, Qingdao, 266071, China
| | - Yu Shi
- Department of Stomatology, Shenzhen-Shanwei Central Hospital, Sun Yat-sen University, Shanwei, 516699, China
| | - Fang Yang
- Department of Stomatology, Qingdao Hospital, University of Health and Rehabilitation Sciences(Qingdao Municipal Hospital), No.5 Donghai Middle Road, Qingdao, 266071, China
| | - Qingyuan Guo
- Department of Stomatology, Qingdao Hospital, University of Health and Rehabilitation Sciences(Qingdao Municipal Hospital), No.5 Donghai Middle Road, Qingdao, 266071, China
| | - Jiawei Zheng
- Department of Oromaxillofacial Head and Neck Oncology, College of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, No.639, Manufacturing Bureau Road, Huangpu District, Shanghai, 200011, China.
| | - Zhenggang Chen
- Institute of Stomatology, Binzhou Medical University, 256600, Binzhou, China.
- The affiliated Yantai Stomatological Hospital, Binzhou Medical University, 264000, Binzhou, China.
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4
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Reyes-Ábalos AL, Álvarez-Zabaleta M, Olivera-Bravo S, Di Tomaso MV. Acute Genetic Damage Induced by Ethanol and Corticosterone Seems to Modulate Hippocampal Astrocyte Signaling. Int J Cell Biol 2024; 2024:5524487. [PMID: 38439918 PMCID: PMC10911912 DOI: 10.1155/2024/5524487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 01/10/2024] [Accepted: 01/25/2024] [Indexed: 03/06/2024] Open
Abstract
Astrocytes maintain CNS homeostasis but also critically contribute to neurological and psychiatric disorders. Such functional diversity implies an extensive signaling repertoire including extracellular vesicles (EVs) and nanotubes (NTs) that could be involved in protection or damage, as widely shown in various experimental paradigms. However, there is no information associating primary damage to the astrocyte genome, the DNA damage response (DDR), and the EV and NT repertoire. Furthermore, similar studies were not performed on hippocampal astrocytes despite their involvement in memory and learning processes, as well as in the development and maintenance of alcohol addiction. By exposing murine hippocampal astrocytes to 400 mM ethanol (EtOH) and/or 1 μM corticosterone (CTS) for 1 h, we tested whether the induced DNA damage and DDR could elicit significant changes in NTs and surface-attached EVs. Genetic damage and initial DDR were assessed by immunolabeling against the phosphorylated histone variant H2AX (γH2AX), DDR-dependent apoptosis by BAX immunoreactivity, and astrocyte activation by the glial acidic fibrillary protein (GFAP) and phalloidin staining. Surface-attached EVs and NTs were examined via scanning electron microscopy, and labeled proteins were analyzed via confocal microscopy. Relative to controls, astrocytes exposed to EtOH, CTS, or EtOH+CTS showed significant increases in nuclear γlH2AX foci, nuclear and cytoplasmic BAX signals, and EV frequency at the expense of the NT amount, mainly upon EtOH, without detectable signs of morphological reactivity. Furthermore, the largest and most complex EVs originated only in DNA-damaged astrocytes. Obtained results revealed that astrocytes exposed to acute EtOH and/or CTS preserved their typical morphology but presented severe DNA damage, triggered canonical DDR pathways, and early changes in the cell signaling mediated by EVs and NTs. Further deepening of this initial morphological and quantitative analysis is necessary to identify the mechanistic links between genetic damage, DDR, cell-cell communication, and their possible impact on hippocampal neural cells.
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Affiliation(s)
- Ana Laura Reyes-Ábalos
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Montevideo, Uruguay
- Unidad de Microscopía Electrónica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Magdalena Álvarez-Zabaleta
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Montevideo, Uruguay
| | - Silvia Olivera-Bravo
- Departamento de Neurobiología y Neuropatología, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Montevideo, Uruguay
| | - María Vittoria Di Tomaso
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Montevideo, Uruguay
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Wang W, Li D, Xu Q, Cheng J, Yu Z, Li G, Qiao S, Pan J, Wang H, Shi J, Zheng T, Sui G. G-quadruplexes promote the motility in MAZ phase-separated condensates to activate CCND1 expression and contribute to hepatocarcinogenesis. Nat Commun 2024; 15:1045. [PMID: 38316778 PMCID: PMC10844655 DOI: 10.1038/s41467-024-45353-5] [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: 05/03/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024] Open
Abstract
G-quadruplexes (G4s) can recruit transcription factors to activate gene expression, but detailed mechanisms remain enigmatic. Here, we demonstrate that G4s in the CCND1 promoter propel the motility in MAZ phase-separated condensates and subsequently activate CCND1 transcription. Zinc finger (ZF) 2 of MAZ is a responsible for G4 binding, while ZF3-5, but not a highly disordered region, is critical for MAZ condensation. MAZ nuclear puncta overlaps with signals of G4s and various coactivators including BRD4, MED1, CDK9 and active RNA polymerase II, as well as gene activation histone markers. MAZ mutants lacking either G4 binding or phase separation ability did not form nuclear puncta, and showed deficiencies in promoting hepatocellular carcinoma cell proliferation and xenograft tumor formation. Overall, we unveiled that G4s recruit MAZ to the CCND1 promoter and facilitate the motility in MAZ condensates that compartmentalize coactivators to activate CCND1 expression and subsequently exacerbate hepatocarcinogenesis.
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Affiliation(s)
- Wenmeng Wang
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Dangdang Li
- College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Qingqing Xu
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Jiahui Cheng
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Zhiwei Yu
- Department of Colorectal Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Guangyue Li
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Shiyao Qiao
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Jiasong Pan
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Hao Wang
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Jinming Shi
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Tongsen Zheng
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, China
- Key Laboratory of Molecular Oncology of Heilongjiang Province, Harbin, China
| | - Guangchao Sui
- College of Life Science, Northeast Forestry University, Harbin, 150040, China.
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6
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Reyes-Ábalos AL, Álvarez-Zabaleta M, Olivera-Bravo S, Di Tomaso MV. Astrocyte DNA damage and response upon acute exposure to ethanol and corticosterone. FRONTIERS IN TOXICOLOGY 2024; 5:1277047. [PMID: 38259729 PMCID: PMC10800529 DOI: 10.3389/ftox.2023.1277047] [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: 08/13/2023] [Accepted: 12/11/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction: Astrocytes are the glial cells responsible for brain homeostasis, but if injured, they could damage neural cells even deadly. Genetic damage, DNA damage response (DDR), and its downstream cascades are dramatic events poorly studied in astrocytes. Hypothesis and methods: We propose that 1 h of 400 mmol/L ethanol and/or 1 μmol/L corticosterone exposure of cultured hippocampal astrocytes damages DNA, activating the DDR and eliciting functional changes. Immunolabeling against γH2AX (chromatin DNA damage sites), cyclin D1 (cell cycle control), nuclear (base excision repair, BER), and cytoplasmic (anti-inflammatory functions) APE1, ribosomal nucleolus proteins together with GFAP and S100β plus scanning electron microscopy studies of the astrocyte surface were carried out. Results: Data obtained indicate significant DNA damage, immediate cell cycle arrest, and BER activation. Changes in the cytoplasmic signals of cyclin D1 and APE1, nucleolus number, and membrane-attached vesicles strongly suggest a reactivity like astrocyte response without significant morphological changes. Discussion: Obtained results uncover astrocyte genome immediate vulnerability and DDR activation, plus a functional response that might in part, be signaled through extracellular vesicles, evidencing the complex influence that astrocytes may have on the CNS even upon short-term aggressions.
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Affiliation(s)
- Ana Laura Reyes-Ábalos
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
| | - Magdalena Álvarez-Zabaleta
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
| | | | - María Vittoria Di Tomaso
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
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7
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Petrohilos C, Patchett A, Hogg CJ, Belov K, Peel E. Tasmanian devil cathelicidins exhibit anticancer activity against Devil Facial Tumour Disease (DFTD) cells. Sci Rep 2023; 13:12698. [PMID: 37542170 PMCID: PMC10403513 DOI: 10.1038/s41598-023-39901-0] [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: 05/19/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023] Open
Abstract
The Tasmanian devil (Sarcophilus harrisii) is endangered due to the spread of Devil Facial Tumour Disease (DFTD), a contagious cancer with no current treatment options. Here we test whether seven recently characterized Tasmanian devil cathelicidins are involved in cancer regulation. We measured DFTD cell viability in vitro following incubation with each of the seven peptides and describe the effect of each on gene expression in treated cells. Four cathelicidins (Saha-CATH3, 4, 5 and 6) were toxic to DFTD cells and caused general signs of cellular stress. The most toxic peptide (Saha-CATH5) also suppressed the ERBB and YAP1/TAZ signaling pathways, both of which have been identified as important drivers of cancer proliferation. Three cathelicidins induced inflammatory pathways in DFTD cells that may potentially recruit immune cells in vivo. This study suggests that devil cathelicidins have some anti-cancer and inflammatory functions and should be explored further to determine whether they have potential as treatment leads.
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Affiliation(s)
- Cleopatra Petrohilos
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide & Protein Science, The University of Sydney, Sydney, NSW, Australia
| | - Amanda Patchett
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Carolyn J Hogg
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia.
- Australian Research Council Centre of Excellence for Innovations in Peptide & Protein Science, The University of Sydney, Sydney, NSW, Australia.
| | - Katherine Belov
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide & Protein Science, The University of Sydney, Sydney, NSW, Australia
| | - Emma Peel
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide & Protein Science, The University of Sydney, Sydney, NSW, Australia
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8
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Saleban M, Harris EL, Poulter JA. D-Type Cyclins in Development and Disease. Genes (Basel) 2023; 14:1445. [PMID: 37510349 PMCID: PMC10378862 DOI: 10.3390/genes14071445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
D-type cyclins encode G1/S cell cycle checkpoint proteins, which play a crucial role in defining cell cycle exit and progression. Precise control of cell cycle exit is vital during embryonic development, with defects in the pathways regulating intracellular D-type cyclins resulting in abnormal initiation of stem cell differentiation in a variety of different organ systems. Furthermore, stabilisation of D-type cyclins is observed in a wide range of disorders characterized by cellular over-proliferation, including cancers and overgrowth disorders. In this review, we will summarize and compare the roles played by each D-type cyclin during development and provide examples of how their intracellular dysregulation can be an underlying cause of disease.
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Affiliation(s)
- Mostafa Saleban
- Division of Molecular Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds LS2 9JT, UK
| | - Erica L Harris
- Division of Molecular Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds LS2 9JT, UK
| | - James A Poulter
- Division of Molecular Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds LS2 9JT, UK
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Cai W, Shu LZ, Liu DJ, Zhou L, Wang MM, Deng H. Targeting cyclin D1 as a therapeutic approach for papillary thyroid carcinoma. Front Oncol 2023; 13:1145082. [PMID: 37427143 PMCID: PMC10324616 DOI: 10.3389/fonc.2023.1145082] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 06/09/2023] [Indexed: 07/11/2023] Open
Abstract
Cyclin D1 functions as a mitogenic sensor that specifically binds to CDK4/6, thereby integrating external mitogenic inputs and cell cycle progression. Cyclin D1 interacts with transcription factors and regulates various important cellular processes, including differentiation, proliferation, apoptosis, and DNA repair. Therefore, its dysregulation contributes to carcinogenesis. Cyclin D1 is highly expressed in papillary thyroid carcinoma (PTC). However, the particular cellular mechanisms through which abnormal cyclin D1 expression causes PTC are poorly understood. Unveiling the regulatory mechanisms of cyclin D1 and its function in PTC may help determine clinically effective strategies, and open up better opportunities for further research, leading to the development of novel PTC regimens that are clinically effective. This review explores the mechanisms underlying cyclin D1 overexpression in PTC. Furthermore, we discuss the role of cyclin D1 in PTC tumorigenesis via its interactions with other regulatory elements. Finally, recent progress in the development of therapeutic options targeting cyclin D1 in PTC is examined and summarized.
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Affiliation(s)
- Wei Cai
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lin-Zhen Shu
- Medical College, Nanchang University, Nanchang, China
| | - Ding-Jie Liu
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People’s Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China
| | - Lv Zhou
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
| | - Meng-Meng Wang
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huan Deng
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
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10
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Yu W, Xie X, Ma Y, Fang S, Dong Y, Liu G. Identification of 1,4-Benzodiazepine-2,5-dione Derivatives as Potential Protein Synthesis Inhibitors with Highly Potent Anticancer Activity. J Med Chem 2022; 65:14891-14915. [PMID: 36260776 DOI: 10.1021/acs.jmedchem.2c01431] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this study, a random multiple human tumor cell line screening of an in-stock small-molecule chemical library was performed, and a hit compound, 1,4-benzodiazepine-2,5-dione (BZD, 11a; average 50% growth inhibitory concentration (GI50 = 0.24 μM)) to 60 tumor cell lines of nine types of human cancers, was identified. Subsequent structure-activity relationship (SAR) investigation disclosed a highly potent antitumor compound, 52b, that was shown to exert promising effects against lung cancer cells by inducing cell cycle arrest and apoptosis. Further polysome profile analysis revealed that 52b inhibited protein synthesis in cancer cells. Moreover, 52b significantly prevented tumor growth in a human non-small-cell lung cancer (NCI-H522) xenograft mouse model with no observable toxic effects. These findings are the first report of the synthetic compound 52b with a 1,4-benzodiazepine-2,5-dione skeleton that acts as a potential protein synthesis inhibitor to effectively inhibit tumor growth.
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Affiliation(s)
- Wenjun Yu
- School of Pharmaceutical Sciences, Tsinghua University, Haidian Dist, Beijing 100084, P. R. China
| | - Xilei Xie
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 2A Nanwei Rd, Xicheng Dist, Beijing 100050, P. R. China.,College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Yao Ma
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 2A Nanwei Rd, Xicheng Dist, Beijing 100050, P. R. China
| | - Shiping Fang
- School of Pharmaceutical Sciences, Tsinghua University, Haidian Dist, Beijing 100084, P. R. China
| | - Yi Dong
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 2A Nanwei Rd, Xicheng Dist, Beijing 100050, P. R. China
| | - Gang Liu
- School of Pharmaceutical Sciences, Tsinghua University, Haidian Dist, Beijing 100084, P. R. China.,Key laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, P. R. China
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11
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Feng C, Cheng Z, Xu Z, Tian Y, Tian H, Liu F, Luo D, Wang Y. EmCyclinD-EmCDK4/6 complex is involved in the host EGF-mediated proliferation of Echinococcus multilocularis germinative cells via the EGFR-ERK pathway. Front Microbiol 2022; 13:968872. [PMID: 36033888 PMCID: PMC9410764 DOI: 10.3389/fmicb.2022.968872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
The larval stage of the tapeworm Echinococcus multilocularis causes alveolar echinococcosis (AE), one of the most lethal helminthic infections in humans. The tumor-like growth and development of the metacestode larvae within host organs are driven by a population of somatic stem cells, the germinative cells, which represent the only proliferative cells in the parasite. Host-derived factors have been shown to promote germinative cell proliferation. Since cells sense the external signal mainly in G1 phase of the cell cycle, host factors are expected to exert impacts on the machinery regulating G1/S phase of the germinative cells, which still remains largely unknown in E. multilocularis. In this study, we described the characterization of two key members of the G1/S phase cell-cycle regulation, EmCyclinD and EmCDK4/6. Our data show that EmCyclinD and EmCDK4/6 display significant sequence similarity to their respective mammalian homologs, and that EmCyclinD interacts with EmCDK4/6, forming a kinase-active complex to activate its substrate Rb1. EmCyclinD was actively expressed in the germinative cells. Addition of human EGF caused an elevated expression of EmCyclinD while inhibition of the EGFR-ERK signaling pathway in the parasite reduced the expression of EmCyclinD and downstream transcriptional factors. Treatment with Palbociclib, a specific CDK4/6 inhibitor, downregulated the expression of cell cycle-related factors and impeded germinative cell proliferation and vesicle formation from protoscoleces. Our data demonstrated that the EmCyclinD-EmCDK4/6 complex participates in the cell cycle regulation of germinative cells which is mediated by host EGF via the EGFR-ERK-EmCyclinD pathway in E. multilocularis.
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Affiliation(s)
- Chonglv Feng
- State Key Laboratory of Cellular Stress Biology, Faculty of Medicine and Life Sciences, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- Parasitology Research Laboratory, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Zhe Cheng
- State Key Laboratory of Cellular Stress Biology, Faculty of Medicine and Life Sciences, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- Parasitology Research Laboratory, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- Zhe Cheng,
| | - Zhijian Xu
- State Key Laboratory of Cellular Stress Biology, Faculty of Medicine and Life Sciences, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- Parasitology Research Laboratory, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Ye Tian
- State Key Laboratory of Cellular Stress Biology, Faculty of Medicine and Life Sciences, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- Parasitology Research Laboratory, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Huimin Tian
- Medical College, Xiamen University, Xiamen, Fujian, China
| | - Fan Liu
- Medical College, Xiamen University, Xiamen, Fujian, China
| | - Damin Luo
- State Key Laboratory of Cellular Stress Biology, Faculty of Medicine and Life Sciences, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- Parasitology Research Laboratory, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Yanhai Wang
- State Key Laboratory of Cellular Stress Biology, Faculty of Medicine and Life Sciences, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- Parasitology Research Laboratory, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
- *Correspondence: Yanhai Wang,
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12
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Zhang Y, Wu T, Li F, Cheng Y, Han Q, Lu X, Lu S, Xia W. FGF19 Is Coamplified With CCND1 to Promote Proliferation in Lung Squamous Cell Carcinoma and Their Combined Inhibition Shows Improved Efficacy. Front Oncol 2022; 12:846744. [PMID: 35463335 PMCID: PMC9021371 DOI: 10.3389/fonc.2022.846744] [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: 12/31/2021] [Accepted: 02/28/2022] [Indexed: 12/09/2022] Open
Abstract
Lung squamous cell carcinoma (LUSC) remains as a major cause of cancer-associated mortality with few therapeutic options. Continued research on new driver genes is particularly important. FGF19, a fibroblast growth factor, is frequently observed as amplified in human LUSC, which is also associated with multiple genomic gains and losses. However, the importance of these associated changes is largely unknown. In this study, we aimed to clarify a novel mechanism that link neighboring oncogene co-amplification in the development of LUSC. We found that FGF19 was co-amplified and co-expressed with its neighboring gene CCND1 in a subset of LUSC patients and associated with poor prognosis. Moreover, FGF19 combined with CCND1 promoted the cell cycle progression of LUSC cells. Mechanistically, FGF19 also enhanced CCND1 expression by activating FGFR4-ERK1/2 signaling and strengthening CCND1-induced phosphorylation and inactivation of retinoblastoma (RB). In a murine model of lung orthotopic cancer, knockdown of CCND1 was found to prolong survival by attenuating FGF19-induced cell proliferation. Furthermore, the combination treatment of the FGFR4 inhibitor BLU9931 and the CDK4/6 inhibitor palbociclib potentiated the growth inhibition and arrested cells in G1 phase. In vivo, co-targeting FGFR4 and CDK4/6 also showed marked inhibition of tumor growth than single agent treatment. These findings further elucidate the oncogenic role of FGF19 in LUSC and provide insights into how the co-amplification of neighboring genes synergistically function to promote cancer growth, and combined inhibition against both FGF19 and CCND1 is more effective.
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Affiliation(s)
- Yanshuang Zhang
- State Key Laboratory of Oncogenes and Related Genes, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Tingyu Wu
- State Key Laboratory of Oncogenes and Related Genes, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Fan Li
- State Key Laboratory of Oncogenes and Related Genes, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yirui Cheng
- State Key Laboratory of Oncogenes and Related Genes, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Qing Han
- State Key Laboratory of Oncogenes and Related Genes, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xin Lu
- State Key Laboratory of Oncogenes and Related Genes, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Shun Lu
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Weiliang Xia
- State Key Laboratory of Oncogenes and Related Genes, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
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13
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Raikwar S, Jain A, Saraf S, Bidla PD, Panda PK, Tiwari A, Verma A, Jain SK. Opportunities in combinational chemo-immunotherapy for breast cancer using nanotechnology: an emerging landscape. Expert Opin Drug Deliv 2022; 19:247-268. [PMID: 35184620 DOI: 10.1080/17425247.2022.2044785] [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] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Breast carcinoma (BC) is one of the most frequent causes of cancer-related death among women, which is due to the poor response to conventional therapy. There are several complications associated with monotherapy for cancer, such as cytotoxicity to normal cells, multidrug resistance (MDR), side effects, and limited applications. To overcome these challenges, a combination of chemotherapy and immunotherapy (monoclonal antibodies, anticancer vaccines, checkpoint inhibitors, and cytokines) has been introduced. Drug delivery systems (DDSs) based on nanotechnology have more applications in BC treatment owing to their controlled and targeted drug release with lower toxicity and reduced adverse drug effects. Several nanocarriers, such as liposomes, nanoparticles, dendrimers, and micelles, have been used for the effective delivery of drugs. AREAS COVERED This article presents opportunities and challenges in BC treatment, the rationale for cancer immunotherapy, and several combinational approaches with their applications for BC treatment. EXPERT OPINION Nanotechnology can be used for the early prognosis and cure of BC. Several novel and targeted DDSs have been developed to enhance the efficacy of anticancer drugs. This article aims to understand new strategies for the treatment of BC and the appropriate design of nanocarriers used as a combinational DDS.
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Affiliation(s)
- Sarjana Raikwar
- Department of Pharmaceutical Sciences, Pharmaceutics Research Projects Laboratory, Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), India
| | - Ankit Jain
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | - Shivani Saraf
- Department of Pharmaceutical Sciences, Pharmaceutics Research Projects Laboratory, Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), India
| | - Pooja Das Bidla
- Department of Pharmaceutical Sciences, Pharmaceutics Research Projects Laboratory, Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), India
| | - Pritish Kumar Panda
- Department of Pharmaceutical Sciences, Pharmaceutics Research Projects Laboratory, Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), India
| | - Ankita Tiwari
- Department of Pharmaceutical Sciences, Pharmaceutics Research Projects Laboratory, Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), India
| | - Amit Verma
- Department of Pharmaceutical Sciences, Pharmaceutics Research Projects Laboratory, Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), India
| | - Sanjay K Jain
- Department of Pharmaceutical Sciences, Pharmaceutics Research Projects Laboratory, Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), India
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14
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Huang C, Liang J, Lin S, Wang D, Xie Q, Lin Z, Yao T. N 6-Methyladenosine Associated Silencing of miR-193b Promotes Cervical Cancer Aggressiveness by Targeting CCND1. Front Oncol 2021; 11:666597. [PMID: 34178650 PMCID: PMC8222573 DOI: 10.3389/fonc.2021.666597] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/17/2021] [Indexed: 12/31/2022] Open
Abstract
Objective Cervical cancer is a frequently encountered gynecological malignancy as a major contributor to cancer-related deaths in women. This study focuses on how miR-193b promotes cervical cancer aggressiveness as well as the role of m6A in miR-193b silencing. Methods Cervical cancer samples and the matching adjacent normal cervical tissues were used to determine the significance of miR-193b in cervical cancer. The CCK-8 assay, cell cycle analysis, qRT-PCR, Western blot assay, IHC, RIP, and xenograft models were utilized to explore the impact of miR-193b in cervical cancer and how m6A regulates miR-193b expression. Luciferase reporter assays, qRT-PCR, and Western blotting were enlisted to study the interaction between miR-193b and CCND1. Results Our study suggested that lower miR-193b expressions were strongly linked to more advanced cervical cancer stages and the presence of deeper stromal invasion. miR-193b functions as a tumor suppressor that is regulated by m6A methylation in cervical tumors. METTL3 modulates miR-193b mature process in an m6A-dependent manner. Reintroduction of miR-193b profoundly inhibits tumorigenesis of cervical cancer cells both in vivo and in vitro through CCND1 targeting. Conclusions m6A associated downregulation of miR-193b promotes cervical cancer aggressiveness by targeting CCND1.
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Affiliation(s)
- Chunxian Huang
- Department of Gynecological Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jinxiao Liang
- Department of Gynecological Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shaodan Lin
- Department of Gynecological Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Dongyan Wang
- Department of Gynecological Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Qingsheng Xie
- Department of Gynecological Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhongqiu Lin
- Department of Gynecological Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Tingting Yao
- Department of Gynecological Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
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15
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Scarpin MR, Leiboff S, Brunkard JO. Parallel global profiling of plant TOR dynamics reveals a conserved role for LARP1 in translation. eLife 2020; 9:e58795. [PMID: 33054972 PMCID: PMC7584452 DOI: 10.7554/elife.58795] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 10/14/2020] [Indexed: 12/15/2022] Open
Abstract
Target of rapamycin (TOR) is a protein kinase that coordinates eukaryotic metabolism. In mammals, TOR specifically promotes translation of ribosomal protein (RP) mRNAs when amino acids are available to support protein synthesis. The mechanisms controlling translation downstream from TOR remain contested, however, and are largely unexplored in plants. To define these mechanisms in plants, we globally profiled the plant TOR-regulated transcriptome, translatome, proteome, and phosphoproteome. We found that TOR regulates ribosome biogenesis in plants at multiple levels, but through mechanisms that do not directly depend on 5' oligopyrimidine tract motifs (5'TOPs) found in mammalian RP mRNAs. We then show that the TOR-LARP1-5'TOP signaling axis is conserved in plants and regulates expression of a core set of eukaryotic 5'TOP mRNAs, as well as new, plant-specific 5'TOP mRNAs. Our study illuminates ancestral roles of the TOR-LARP1-5'TOP metabolic regulatory network and provides evolutionary context for ongoing debates about the molecular function of LARP1.
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Affiliation(s)
- M Regina Scarpin
- Department of Plant and Microbial Biology, University of California at BerkeleyBerkeleyUnited States
- Plant Gene Expression Center, U.S. Department of Agriculture Agricultural Research ServiceAlbanyUnited States
| | - Samuel Leiboff
- Department of Plant and Microbial Biology, University of California at BerkeleyBerkeleyUnited States
- Plant Gene Expression Center, U.S. Department of Agriculture Agricultural Research ServiceAlbanyUnited States
- Department of Botany and Plant Pathology, Oregon State UniversityCorvallisUnited States
| | - Jacob O Brunkard
- Department of Plant and Microbial Biology, University of California at BerkeleyBerkeleyUnited States
- Plant Gene Expression Center, U.S. Department of Agriculture Agricultural Research ServiceAlbanyUnited States
- Laboratory of Genetics, University of Wisconsin—MadisonMadisonUnited States
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16
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Wang Y, Chen S, Sun S, Liu G, Chen L, Xia Y, Cui J, Wang W, Jiang X, Zhang L, Zhu Y, Zou Y, Shi B. Wogonin Induces Apoptosis and Reverses Sunitinib Resistance of Renal Cell Carcinoma Cells via Inhibiting CDK4-RB Pathway. Front Pharmacol 2020; 11:1152. [PMID: 32792963 PMCID: PMC7394056 DOI: 10.3389/fphar.2020.01152] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 07/15/2020] [Indexed: 01/18/2023] Open
Abstract
Wogonin, an active component derived from Scutellaria baicalensis, has shown anti-tumor activities in several malignancies. However, the roles of wogonin in RCC cells remain elusive. Here, we explored the effects of wogonin on RCC cells and the underlying mechanisms. We found that wogonin showed significant cytotoxic effects against RCC cell lines 786-O and OS-RC-2, with much lower cytotoxic effects on human normal embryonic kidney cell line HEK-293 cells. Wogonin treatment dramatically inhibited the proliferation, migration, and invasion of RCC cells. We further showed that by inhibiting CDK4-RB pathway, wogonin transcriptionally down-regulated CDC6, disturbed DNA replication, induced DNA damage and apoptosis in RCC cells. Moreover, we found that the levels of p-RB, CDK4, and Cyclin D1 were up-regulated in sunitinib resistant 786-O, OS-RC-2, and TK-10 cells, and inhibition of CDK4 by palbociclib or wogonin effectively reversed the sunitinib resistance, indicating that the hyperactivation of CDK4-RB pathway may at least partially contribute to the resistance of RCC to sunitinib. Together, our findings demonstrate that wogonin could induce apoptosis and reverse sunitinib resistance of RCC cells via inhibiting CDK4-RB pathway, thus suggesting a potential therapeutic implication in the future management of RCC patients.
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Affiliation(s)
- Yong Wang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,The Key Laboratory of Experimental Teratology of Ministry of Education, Department of Medical Genetics, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Shouzhen Chen
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Shuna Sun
- Department of Dermatology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Provincial Hospital of Traditional Chinese Medicine, Jinan, China
| | - Guangyi Liu
- Department of Nephrology, Qilu Hospital, Shandong University, Jinan, China
| | - Lipeng Chen
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Yangyang Xia
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Jianfeng Cui
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Wenfu Wang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Xuewen Jiang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Lei Zhang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yaofeng Zhu
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yongxin Zou
- The Key Laboratory of Experimental Teratology of Ministry of Education, Department of Medical Genetics, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Benkang Shi
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
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17
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González-Ruiz L, González-Moles MÁ, González-Ruiz I, Ruiz-Ávila I, Ayén Á, Ramos-García P. An update on the implications of cyclin D1 in melanomas. Pigment Cell Melanoma Res 2020; 33:788-805. [PMID: 32147907 DOI: 10.1111/pcmr.12874] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 02/03/2020] [Accepted: 03/02/2020] [Indexed: 12/13/2022]
Abstract
Cyclin D1 is a protein encoded by the CCND1 gene, located on 11q13 chromosome, which is a key component of the physiological regulation of the cell cycle. CCND1/cyclin D1 is upregulated in several types of human tumors including melanoma and is currently classified as an oncogene that promotes uncontrolled cell proliferation. Despite the demonstrated importance of CCND1/cyclin D1 as a central oncogene in several types of human tumors, its knowledge in melanoma is still limited. This review examines data published on upregulation of the CCND1 gene and cyclin D1 protein in the melanoma setting, focusing on the pathways and molecular mechanisms involved in the activation of the gene and on the clinical and therapeutic implications.
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Affiliation(s)
- Lucia González-Ruiz
- Dermatology Service, Ciudad Real General University Hospital, Ciudad Real, Spain
| | | | | | - Isabel Ruiz-Ávila
- Biohealth Research Institute, Granada, Spain.,Pathology Service, San Cecilio Hospital Complex, Granada, Spain
| | - Ángela Ayén
- Dermatology Service, San Cecilio Hospital Complex, Granada, Spain
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18
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Saleh L, Wilson C, Holen I. CDK4/6 inhibitors in breast cancer - from in vitro models to clinical trials. Acta Oncol 2020; 59:219-232. [PMID: 31671026 DOI: 10.1080/0284186x.2019.1684559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Background: Breast cancer (BC) is one of the leading causes of cancer-related deaths worldwide. Standard therapies aim to disrupt pathways that regulate the growth and survival of BC cells. Therapeutic agents such as endocrine therapy target hormone dependent cancer cells and have shown to be suitable approaches in BC treatment. However, in the case of metastatic BC, curative options are limited, thus strategies have been explored to improve survival and clinical benefit. In this review we provide an up to date overview of the development of anti-cancer agents, particularly the newly developed CDK4/6 inhibitors.Material and methods: A search of PubMed was conducted to identify preclinical data surrounding the development of endocrine therapy and CDK4/6 inhibitors in early and metastatic BC. Clinical data were also sought using PubMed and clinicaltrials.gov.Results: Agents targeting oestrogen and its receptor have demonstrated positive outcomes in clinical trial with improvements in objective responses and overall survival. However, patients do exhibit adverse effects and some will eventually fail to respond to endocrine therapy. Subsequently, the development and success of 3rd generation CDK4/6 inhibitors in preclinical studies has allowed their introduction in clinical studies. In patients with ER + BC, CDK4/6 have demonstrated dramatic improvements in progression free survival when used in combination with endocrine therapies. Similar findings were also observed in metastatic disease. Adverse effects were limited in CDK4/6 treated patients, demonstrating the safety of these agents.Conclusion: CDK4/6 inhibitors are highly specific making them a safe and viable therapeutic for BC and there is increasing evidence of their potential to improve survival, even in the metastatic setting. Although a number of trials have demonstrated this, as a lone therapy or in combination, optimisation of treatment scheduling are still required in further clinical investigations.
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Affiliation(s)
- Lubaid Saleh
- Department of Oncology and Metabolism, Medical School, University of Sheffield, Sheffield, UK
| | - Caroline Wilson
- Academic Unit of Clinical Oncology, Weston Park Hospital, University of Sheffield, Sheffield, UK
| | - Ingunn Holen
- Department of Oncology and Metabolism, Medical School, University of Sheffield, Sheffield, UK
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19
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Ishibashi M, Takahashi R, Tsubota A, Sasaki M, Handa H, Imai Y, Tanaka N, Tsukune Y, Tanosaki S, Ito S, Asayama T, Sunakawa M, Kaito Y, Kuribayashi-Hamada Y, Onodera A, Moriya K, Komatsu N, Tanaka J, Odajima T, Sugimori H, Inokuchi K, Tamura H. SLAMF3-Mediated Signaling via ERK Pathway Activation Promotes Aggressive Phenotypic Behaviors in Multiple Myeloma. Mol Cancer Res 2020; 18:632-643. [PMID: 31974290 DOI: 10.1158/1541-7786.mcr-19-0391] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 12/03/2019] [Accepted: 01/16/2020] [Indexed: 11/16/2022]
Abstract
The signaling lymphocytic activation molecule family 3 (SLAMF3) is a member of the immunoglobulin superfamily expressed on T, B, and natural killer cells and modulates the activation and cytotoxicity of these cells. SLAMF3 is also expressed on plasma cells from patients with multiple myeloma (MM), although its role in MM pathogenesis remains unclear. This study found that SLAMF3 is highly and constitutively expressed on MM cells regardless of disease stage and that SLAMF3 knockdown/knockout suppresses proliferative potential and increases drug-induced apoptosis with decreased levels of phosphorylated ERK protein in MM cells. SLAMF3-overexpressing MM cells promote aggressive myeloma behavior in comparison with cytoplasmic domain-truncated SLAMF3 (ΔSLAMF3) cells. SLAMF3 interacts directly with adaptor proteins SH2 domain-containing phosphatase 2 (SHP2) and growth factor receptor bound 2 (GRB2), which also interact with each other. SLAMF3 knockdown, knockout, ΔSLAMF3, and SHP2 inhibitor-treated MM cells decreased phosphorylated ERK protein levels. Finally, serum soluble SLAMF3 (sSLAMF3) levels were markedly increased in advanced MM. Patients with high levels of sSLAMF3 progressed to the advanced stage significantly more often and had shorter progression-free survival times than those with low levels. This study revealed that SLAMF3 molecules consistently expressed on MM cells transmit MAPK/ERK signals mediated via the complex of SHP2 and GRB2 by self-ligand interaction between MM cells and induce a high malignant potential in MM. Furthermore, high levels of serum sSLAMF3 may reflect MM disease progression and be a useful prognostic factor. IMPLICATIONS: SLAMF3 may be a new therapeutic target for immunotherapy and novel agents such as small-molecule inhibitors.
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Affiliation(s)
- Mariko Ishibashi
- Department of Hematology, Nippon Medical School, Tokyo, Japan.,Department of Microbiology and Immunology, Nippon Medical School, Tokyo, Japan
| | - Risa Takahashi
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Asako Tsubota
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Makoto Sasaki
- Division of Hematology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroshi Handa
- Department of Hematology, Gunma University, Gunma, Japan
| | - Yoichi Imai
- Department of Hematology and Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Norina Tanaka
- Department of Hematology, Tokyo Women's Medical University, Tokyo, Japan
| | - Yutaka Tsukune
- Division of Hematology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Sakae Tanosaki
- Department of Hematology, The Fraternity Memorial Hospital, Tokyo, Japan
| | - Shigeki Ito
- Department of Hematology/Oncology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Toshio Asayama
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Mika Sunakawa
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Yuta Kaito
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | | | - Asaka Onodera
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Keiichi Moriya
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Norio Komatsu
- Division of Hematology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Junji Tanaka
- Department of Hematology, Tokyo Women's Medical University, Tokyo, Japan
| | - Takeshi Odajima
- Faculty of Health Science, Daito Bunka University School of Sports and Health Science, Saitama, Japan
| | - Hiroki Sugimori
- Department of Preventive Medicine, Daito Bunka University Graduate School of Sports and Health Science, Saitama, Japan
| | - Koiti Inokuchi
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Hideto Tamura
- Department of Hematology, Nippon Medical School, Tokyo, Japan.
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20
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Abstract
The cell cycle is tightly regulated by cyclins and their catalytic moieties, the cyclin-dependent kinases (CDKs). Cyclin D1, in association with CDK4/6, acts as a mitogenic sensor and integrates extracellular mitogenic signals and cell cycle progression. When deregulated (overexpressed, accumulated, inappropriately located), cyclin D1 becomes an oncogene and is recognized as a driver of solid tumors and hemopathies. Recent studies on the oncogenic roles of cyclin D1 reported non-canonical functions dependent on the partners of cyclin D1 and its location within tumor cells or tissues. Support for these new functions was provided by various mouse models of oncogenesis. Finally, proteomic and transcriptomic data identified complex cyclin D1 networks. This review focuses on these aspects of cyclin D1 pathophysiology, which may be crucial for targeted therapy.Abbreviations: aa, amino acid; AR, androgen receptor; ATM, ataxia telangectasia mutant; ATR, ATM and Rad3-related; CDK, cyclin-dependent kinase; ChREBP, carbohydrate response element binding protein; CIP, CDK-interacting protein; CHK1/2, checkpoint kinase 1/2; CKI, CDK inhibitor; DDR, DNA damage response; DMP1, cyclin D-binding myb-like protein; DSB, double-strand DNA break; DNA-PK, DNA-dependent protein kinase; ER, estrogen receptor; FASN, fatty acid synthase; GSK3β, glycogen synthase-3β; HAT, histone acetyltransferase; HDAC, histone deacetylase; HK2, hexokinase 2; HNF4α, and hepatocyte nuclear factor 4α; HR, homologous recombination; IR, ionizing radiation; KIP, kinase inhibitory protein; MCL, mantle cell lymphoma; NHEJ, non-homologous end-joining; PCAF, p300/CREB binding-associated protein; PGC1α, PPARγ co-activator 1α; PEST, proline-glutamic acid-serine-threonine, PK, pyruvate kinase; PPAR, peroxisome proliferator-activated receptor; RB1, retinoblastoma protein; ROS, reactive oxygen species; SRC, steroid receptor coactivator; STAT, signal transducer and activator of transcription; TGFβ, transforming growth factor β; UPS, ubiquitin-proteasome system; USP22, ubiquitin-specific peptidase 22; XPO1 (or CRM1) exportin 1.
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Affiliation(s)
- Guergana Tchakarska
- Department of Human Genetics, McGill University Health Centre, McGill University, Montreal, Montreal, Quebec, Canada
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21
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Akhter N, Alzahrani FA, Dar SA, Wahid M, Sattar RSA, Hussain S, Haque S, Ansari SA, Jawed A, Mandal RK, Almalki S, Alharbi RA, Husain SA. AA genotype of cyclin D1 G870A polymorphism increases breast cancer risk: Findings of a case-control study and meta-analysis. J Cell Biochem 2019; 120:16452-16466. [PMID: 31243808 DOI: 10.1002/jcb.28800] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/29/2019] [Accepted: 02/04/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Cyclin D1 (CCND1) polymorphisms, a regulator of the cell cycle progress from G1 to the S phase, may lead to uncontrolled cell proliferation and lack of apoptosis. G870A, a common single-nucleotide polymorphism in CCND1 influences breast cancer risk. However, the association between G870A polymorphism and breast cancer risk is ambiguous so far. MATERIALS AND METHODS In this case-control study, we analyzed the role of G870A polymorphism with breast cancer risk in Indian women. A meta-analysis of 18 studies was also performed to elucidate this association by increasing statistical power. RESULTS In our case-control study, significant risk association of the CCND1 G870A AA genotype with breast cancer in total cohort (odds ratio [OR], 2.98; 95% confidence interval [CI], 1.64-5.42; P value, 4.96e-04) and premenopausal women (OR, 3.31; 95% CI, 1.54-7.08; P value, .003) was found. The results of the meta-analysis showed that AA genotype of the CCND1 G870A polymorphism significantly increases breast cancer risk in total pooled data (AA vs GG+GA: OR = 1.20; 95% CI = 1.03 to 1.39; P value, 0.016*) and Caucasian (AA vs GG+GA: OR = 1.22; 95% CI = 0.99 to 1.51; P value, .056*) but not in Asian population. Further, a significant protective association with breast cancer was also found in the GA vs AA comparison model in pooled data (OR = 0.73; 95% CI = 0.58 to 0.92; P value, .007*) as well as in Caucasian subgroup (OR = 0.62; 95% CI = 0.49 to 0.94; P value, .022*). CONCLUSION CCND1 G870A AA genotype was found associated with breast cancer risk. Future association studies considering the environmental impact on gene expression are required to validate/explore this association.
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Affiliation(s)
- Naseem Akhter
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, India.,Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Albaha University, Al Bahah, Saudi Arabia
| | - Faisal Abdulrahman Alzahrani
- Department of Biological Sciences, Rabigh College of Science and Arts, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Sajad Ahmad Dar
- Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
| | - Mohd Wahid
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, India.,Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
| | | | - Showket Hussain
- Division of Molecular OncologyAnchor, AnchorNational Institute of Cancer Prevention and Research (ICMR), Noida, India
| | - Shafiul Haque
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, India.,Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
| | - Shakeel Ahmed Ansari
- AnchorAnchorCenter of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Arshad Jawed
- Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
| | - Raju K Mandal
- Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
| | - Shaia Almalki
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Albaha University, Al Bahah, Saudi Arabia
| | - Raed A Alharbi
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Albaha University, Al Bahah, Saudi Arabia
| | - Syed Akhtar Husain
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, India
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22
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Tong Y, Song Y, Deng S. Combined analysis and validation for DNA methylation and gene expression profiles associated with prostate cancer. Cancer Cell Int 2019; 19:50. [PMID: 30867653 PMCID: PMC6399908 DOI: 10.1186/s12935-019-0753-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 02/08/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Prostate cancer (PCa) is a malignancy cause of cancer deaths and frequently diagnosed in male. This study aimed to identify tumor suppressor genes, hub genes and their pathways by combined bioinformatics analysis. METHODS A combined analysis method was used for two types of microarray datasets (DNA methylation and gene expression profiles) from the Gene Expression Omnibus (GEO). Differentially methylated genes (DMGs) were identified by the R package minfi and differentially expressed genes (DEGs) were screened out via the R package limma. A total of 4451 DMGs and 1509 DEGs, identified with nine overlaps between DMGs, DEGs and tumor suppressor genes, were screened for candidate tumor suppressor genes. All these nine candidate tumor suppressor genes were validated by TCGA (The Cancer Genome Atlas) database and Oncomine database. And then, the gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway (KEGG) enrichment analyses were performed by DAVID (Database for Annotation, Visualization and Integrated Discovery) database. Protein-protein interaction (PPI) network was constructed by STRING and visualized in Cytoscape. At last, Kaplan-Meier analysis was performed to validate these genes. RESULTS The candidate tumor suppressor genes were IKZF1, PPM1A, FBP1, SMCHD1, ALPL, CASP5, PYHIN1, DAPK1 and CASP8. By validation in TCGA database, PPM1A, DAPK1, FBP1, PYHIN1, ALPL and SMCHD1 were significant. The hub genes were FGFR1, FGF13 and CCND1. These hub genes were identified from the PPI network, and sub-networks revealed by these genes were involved in significant pathways. CONCLUSION In summary, the study indicated that the combined analysis for identifying target genes with PCa by bioinformatics tools promote our understanding of the molecular mechanisms and underlying the development of PCa. And the hub genes might serve as molecular targets and diagnostic biomarkers for precise diagnosis and treatment of PCa.
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Affiliation(s)
- Yanqiu Tong
- Laboratory of Forensic Medicine and Biomedical Informatics, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
- School of Humanity, Chongqing Jiaotong University, Chongqing, 400074 People’s Republic of China
| | - Yang Song
- Department of Device, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
| | - Shixiong Deng
- Laboratory of Forensic Medicine and Biomedical Informatics, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
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23
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Kahweol inhibits proliferation and induces apoptosis by suppressing fatty acid synthase in HER2-overexpressing cancer cells. Food Chem Toxicol 2018; 121:326-335. [DOI: 10.1016/j.fct.2018.09.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/30/2018] [Accepted: 09/06/2018] [Indexed: 12/18/2022]
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24
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Kim S, Tiedt R, Loo A, Horn T, Delach S, Kovats S, Haas K, Engstler BS, Cao A, Pinzon-Ortiz M, Mulford I, Acker MG, Chopra R, Brain C, di Tomaso E, Sellers WR, Caponigro G. The potent and selective cyclin-dependent kinases 4 and 6 inhibitor ribociclib (LEE011) is a versatile combination partner in preclinical cancer models. Oncotarget 2018; 9:35226-35240. [PMID: 30443290 PMCID: PMC6219668 DOI: 10.18632/oncotarget.26215] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/15/2018] [Indexed: 01/18/2023] Open
Abstract
Inhibition of cyclin-dependent kinases 4 and 6 (CDK4/6) is associated with robust antitumor activity. Ribociclib (LEE011) is an orally bioavailable CDK4/6 inhibitor that is approved for the treatment of hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer, in combination with an aromatase inhibitor, and is currently being evaluated in several additional trials. Here, we report the preclinical profile of ribociclib. When tested across a large panel of kinase active site binding assays, ribociclib and palbociclib were highly selective for CDK4, while abemaciclib showed affinity to several other kinases. Both ribociclib and abemaciclib showed slightly higher potency in CDK4-dependent cells than in CDK6-dependent cells, while palbociclib did not show such a difference. Profiling CDK4/6 inhibitors in large-scale cancer cell line screens in vitro confirmed that RB1 loss of function is a negative predictor of sensitivity. We also found that routinely used cellular viability assays measuring adenosine triphosphate levels as a proxy for cell numbers underestimated the effects of CDK4/6 inhibition, which contrasts with assays that assess cell number more directly. Robust antitumor efficacy and combination benefit was detected when ribociclib was added to encorafenib, nazartinib, or endocrine therapies in patient-derived xenografts.
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Affiliation(s)
- Sunkyu Kim
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Ralph Tiedt
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Basel, Switzerland, USA
| | - Alice Loo
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Thomas Horn
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Scott Delach
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Steven Kovats
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Kristy Haas
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | | | - Alexander Cao
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Maria Pinzon-Ortiz
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Iain Mulford
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Michael G Acker
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Rajiv Chopra
- Novartis Institutes for BioMedical Research, Chemical Biology & Therapeutics, Cambridge, MA, USA
| | - Christopher Brain
- Novartis Institutes for BioMedical Research, Global Discovery Chemistry, Cambridge, MA, USA
| | - Emmanuelle di Tomaso
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - William R Sellers
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
| | - Giordano Caponigro
- Novartis Institutes for BioMedical Research, Oncology Disease Area, Cambridge, MA, USA
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25
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Albero R, Enjuanes A, Demajo S, Castellano G, Pinyol M, García N, Capdevila C, Clot G, Suárez-Cisneros H, Shimada M, Karube K, López-Guerra M, Colomer D, Beà S, Martin-Subero JI, Campo E, Jares P. Cyclin D1 overexpression induces global transcriptional downregulation in lymphoid neoplasms. J Clin Invest 2018; 128:4132-4147. [PMID: 29990311 DOI: 10.1172/jci96520] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 06/28/2018] [Indexed: 01/05/2023] Open
Abstract
Cyclin D1 is an oncogene frequently overexpressed in human cancers that has a dual function as cell cycle and transcriptional regulator, although the latter is widely unexplored. Here, we investigated the transcriptional role of cyclin D1 in lymphoid tumor cells with cyclin D1 oncogenic overexpression. Cyclin D1 showed widespread binding to the promoters of most actively transcribed genes, and the promoter occupancy positively correlated with the transcriptional output of targeted genes. Despite this association, the overexpression of cyclin D1 in lymphoid cells led to a global transcriptional downmodulation that was proportional to cyclin D1 levels. This cyclin D1-dependent global transcriptional downregulation was associated with a reduced nascent transcription and an accumulation of promoter-proximal paused RNA polymerase II (Pol II) that colocalized with cyclin D1. Concordantly, cyclin D1 overexpression promoted an increase in the Poll II pausing index. This transcriptional impairment seems to be mediated by the interaction of cyclin D1 with the transcription machinery. In addition, cyclin D1 overexpression sensitized cells to transcription inhibitors, revealing a synthetic lethality interaction that was also observed in primary mantle cell lymphoma cases. This finding of global transcriptional dysregulation expands the known functions of oncogenic cyclin D1 and suggests the therapeutic potential of targeting the transcriptional machinery in cyclin D1-overexpressing tumors.
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Affiliation(s)
| | - Anna Enjuanes
- Genomics Unit, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | | | | | - Magda Pinyol
- Genomics Unit, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | | | | | | | - Helena Suárez-Cisneros
- Genomics Unit, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Mariko Shimada
- Hematopathology Unit and Cell Biology, Graduate School of Medicine and Faculty of Medicine, University of the Ryukyus, Nishihara, Japan.,Haematopathology Unit, Department of Anatomic Pathology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Kennosuke Karube
- Hematopathology Unit and Cell Biology, Graduate School of Medicine and Faculty of Medicine, University of the Ryukyus, Nishihara, Japan.,Haematopathology Unit, Department of Anatomic Pathology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Mónica López-Guerra
- Lymphoid Neoplasm Program and.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,Haematopathology Unit, Department of Anatomic Pathology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Dolors Colomer
- Lymphoid Neoplasm Program and.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,Haematopathology Unit, Department of Anatomic Pathology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Sílvia Beà
- Lymphoid Neoplasm Program and.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - José Ignacio Martin-Subero
- Lymphoid Neoplasm Program and.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Elías Campo
- Lymphoid Neoplasm Program and.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,Haematopathology Unit, Department of Anatomic Pathology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Pedro Jares
- Lymphoid Neoplasm Program and.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,Molecular Biology Core, Hospital Clinic of Barcelona, Barcelona, Spain.,Haematopathology Unit, Department of Anatomic Pathology, Hospital Clínic, University of Barcelona, Barcelona, Spain
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26
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Wu S, Lan S, Wu S, Chiu Y, Lin X, Su I, Tsai T, Yen C, Lu T, Liang F, Li C, Su H, Su C, Liu H. Hepatocellular carcinoma-related cyclin D1 is selectively regulated by autophagy degradation system. Hepatology 2018; 68:141-154. [PMID: 29328502 PMCID: PMC6055810 DOI: 10.1002/hep.29781] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 12/18/2017] [Accepted: 01/02/2018] [Indexed: 12/14/2022]
Abstract
UNLABELLED Dysfunction of degradation machineries causes cancers, including hepatocellular carcinoma (HCC). Overexpression of cyclin D1 in HCC has been reported. We previously reported that autophagy preferentially recruits and degrades the oncogenic microRNA (miR)-224 to prevent HCC. Therefore, in the present study, we attempted to clarify whether cyclin D1 is another oncogenic factor selectively regulated by autophagy in HCC tumorigenesis. Initially, we found an inverse correlation between low autophagic activity and high cyclin D1 expression in tumors of 147 HCC patients and three murine models, and these results taken together revealed a correlation with poor overall survival of HCC patients, indicating the importance of these two events in HCC development. We found that increased autophagic activity leads to cyclin D1 ubiquitination and selective recruitment to the autophagosome (AP) mediated by a specific receptor, sequestosome 1 (SQSTM1), followed by fusion with lysosome and degradation. Autophagy-selective degradation of ubiquitinated cyclin D1 through SQSTM1 was confirmed using cyclin D1/ubiquitin binding site (K33-238 R) and phosphorylation site (T286A) mutants, lentivirus-mediated silencing autophagy-related 5 (ATG5), autophagy-related 7 (ATG7), and Sqstm1 knockout cells. Functional studies revealed that autophagy-selective degradation of cyclin D1 plays suppressive roles in cell proliferation, colony, and liver tumor formation. Notably, an increase of autophagic activity by pharmacological inducers (amiodarone and rapamycin) significantly suppressed tumor growth in both the orthotopic liver tumor and subcutaneous tumor xenograft models. Our findings provide evidence of the underlying mechanism involved in the regulation of cyclin D1 by selective autophagy to prevent tumor formation. CONCLUSION Taken together, our data demonstrate that autophagic degradation machinery and the cell-cycle regulator, cyclin D1, are linked to HCC tumorigenesis. We believe these findings may be of value in the development of alternative therapeutics for HCC patients. (Hepatology 2018;68:141-154).
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Affiliation(s)
- Shan‐Ying Wu
- Institute of Basic Medical Sciences, College of MedicineNational Cheng Kung UniversityTainanTaiwan,Department of Microbiology and Immunology, College of MedicineNational Cheng Kung UniversityTainanTaiwan
| | - Sheng‐Hui Lan
- Institute of Basic Medical Sciences, College of MedicineNational Cheng Kung UniversityTainanTaiwan,Department of Microbiology and Immunology, College of MedicineNational Cheng Kung UniversityTainanTaiwan
| | - Shang‐Rung Wu
- Institute of Oral MedicineNational Cheng Kung UniversityTainanTaiwan
| | - Yen‐Chi Chiu
- Institute of Basic Medical Sciences, College of MedicineNational Cheng Kung UniversityTainanTaiwan
| | - Xi‐Zhang Lin
- Department of Internal MedicineNational Cheng Kung University HospitalTainanTaiwan
| | - Ih‐Jen Su
- Department of PathologyNational Cheng Kung University HospitalTainanTaiwan
| | - Ting‐Fen Tsai
- Department of Life Sciences and Institute of Genome SciencesNational Yang‐Ming UniversityTaipeiTaiwan
| | - Chia‐Jui Yen
- Division of Hematology and Oncology, Department of Internal MedicineNational Cheng Kung University hospital, College of MedicineTainanTaiwan
| | - Tsung‐Hsueh Lu
- NCKU Research Center for Health Data and Department of Public HealthCollege of MedicineTainanTaiwan
| | - Fu‐Wen Liang
- NCKU Research Center for Health Data and Department of Public HealthCollege of MedicineTainanTaiwan
| | - Chung‐Yi Li
- NCKU Research Center for Health Data and Department of Public HealthCollege of MedicineTainanTaiwan
| | - Huey‐Jen Su
- Department of Environmental and Occupational Health, College of MedicineNational Cheng Kung UniversityTainanTaiwan
| | - Chun‐Li Su
- Department of Human Development and Family StudiesNational Taiwan Normal UniversityTaipeiTaiwan
| | - Hsiao‐Sheng Liu
- Institute of Basic Medical Sciences, College of MedicineNational Cheng Kung UniversityTainanTaiwan,Department of Microbiology and Immunology, College of MedicineNational Cheng Kung UniversityTainanTaiwan,Center of Infectious Disease and Signaling Research, College of MedicineNational Cheng Kung UniversityTainanTaiwan
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27
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Sensitization of prostate cancer to radiation therapy: Molecules and pathways to target. Radiother Oncol 2018; 128:283-300. [PMID: 29929859 DOI: 10.1016/j.radonc.2018.05.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 05/01/2018] [Accepted: 05/17/2018] [Indexed: 12/11/2022]
Abstract
Radiation therapy is used to treat cancer by radiation-induced DNA damage. Despite the best efforts to eliminate cancer, some cancer cells survive irradiation, resulting in cancer progression or recurrence. Alteration in DNA damage repair pathways is common in cancers, resulting in modulation of their response to radiation. This article focuses on the recent findings about molecules and pathways that potentially can be targeted to sensitize prostate cancer cells to ionizing radiation, thereby achieving an improved therapeutic outcome.
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28
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Hagiwara N, Watanabe M, Iizuka-Ohashi M, Yokota I, Toriyama S, Sukeno M, Tomosugi M, Sowa Y, Hongo F, Mikami K, Soh J, Fujito A, Miyashita H, Morioka Y, Miki T, Ukimura O, Sakai T. Mevalonate pathway blockage enhances the efficacy of mTOR inhibitors with the activation of retinoblastoma protein in renal cell carcinoma. Cancer Lett 2018; 431:182-189. [PMID: 29778569 DOI: 10.1016/j.canlet.2018.05.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 05/04/2018] [Accepted: 05/15/2018] [Indexed: 12/11/2022]
Abstract
Renal cell carcinoma (RCC) is the most common malignancy of kidney and remains largely intractable once it recurs after resection. mTOR inhibitors have been one of the mainstays used against recurrent RCC; however, there has been a major problem of the resistance to mTOR inhibitors, and thus new combination treatments with mTOR inhibitors are required. We here retrospectively showed that regular use of antilipidemic drug statins could provide a longer progression free survival (PFS) in RCC patients prescribed with an mTOR inhibitor everolimus than without statins (median PFS, 7.5 months vs. 3.2 months, respectively; hazard ratio, 0.52; 95% CI, 0.22-1.11). In order to give a rationale for this finding, we used RCC cell lines and showed the combinatorial effects of an mTOR inhibitor with statins induced a robust activation of retinoblastoma protein, whose mechanisms were involved in statins-mediated hindrance of KRAS or Rac1 protein prenylation. Finally, statins treatment also enhanced the efficacy of an mTOR inhibitor in RCC xenograft models. Thus, we provide molecular and (pre)clinical data showing that statins use could be a drug repositioning for RCC patients to enhance the efficacy of mTOR inhibitors.
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Affiliation(s)
- Nobuhisa Hagiwara
- Department of Molecular-targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan; Department of Urology, Kyoto Prefectural University of Medicine, Japan
| | - Motoki Watanabe
- Department of Molecular-targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Mahiro Iizuka-Ohashi
- Department of Molecular-targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan; Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Japan
| | - Isao Yokota
- Department of Biostatistics, Kyoto Prefectural University of Medicine, Japan
| | - Seijiro Toriyama
- Department of Urology, Kyoto Prefectural University of Medicine, Japan
| | - Mamiko Sukeno
- Department of Molecular-targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Mitsuhiro Tomosugi
- Department of Molecular-targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yoshihiro Sowa
- Department of Molecular-targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Fumiya Hongo
- Department of Urology, Kyoto Prefectural University of Medicine, Japan
| | - Kazuya Mikami
- Department of Urology, Japanese Red Cross Kyoto Daiichi Hospital, Honmachi, Higashiyama-ku, Kyoto, 605-0981, Japan
| | - Jintetsu Soh
- Department of Urology, Japanese Red Cross Kyoto Daini Hospital, Kamannza-marutamachi, Kamigyo-ku, Kyoto, 602-8026, Japan
| | - Akira Fujito
- Department of Urology, Saiseikai Suita Hospital, Kawazonocho, Suita, Osaka, 564-0013, Japan
| | - Hiroaki Miyashita
- Department of Urology, Omihachiman City Hospital, Tsuchida-cho, Omihachiman, Shiga, 523-0082, Japan
| | - Yukako Morioka
- Department of Urology, Kyoto Prefectural University of Medicine, Japan
| | - Tsuneharu Miki
- Department of Urology, Saiseikai Shigaken Hospital, Ohashi, Ritto, Shiga, 520-3046, Japan
| | - Osamu Ukimura
- Department of Urology, Kyoto Prefectural University of Medicine, Japan
| | - Toshiyuki Sakai
- Department of Molecular-targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
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29
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Chuang TD, Khorram O. Regulation of Cell Cycle Regulatory Proteins by MicroRNAs in Uterine Leiomyoma. Reprod Sci 2018; 26:250-258. [PMID: 29642801 DOI: 10.1177/1933719118768692] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The objective of this study was to determine whether miR-93, miR-29c, and miR-200c, which we previously reported to be downregulated in leiomyomas, target cell cycle regulatory proteins that influence cell proliferation. Based on TargetScan algorithm 3 cell cycle regulatory proteins namely, E2F transcription factor 1 (E2F1), Cyclin D1 (CCND1) and CDK2 which were predicted to be targets of these miRNAs were further analyzed. In 30 hysterectomy specimens, we found the expression of E2F1 and CCND1 messenger RNA (mRNA) was increased in leiomyoma as compared to matched myometrium, with no significant changes in CDK2 mRNA levels. There was a significant increase in the abundance of all 3 proteins in leiomyoma in comparison with matched myometrium. Using luciferase reporter assay, we demonstrated E2F1 and CCND1 are targets of miR-93 and CDK2 is a target of miR-29c and miR-200c. We confirmed these findings through transfection studies in which transfection of primary leiomyoma cells with miR-93 resulted in a significant decrease in the expression of E2F1 and CCND1 mRNA and protein levels, whereas knockdown of miR-93 had the opposite effect. Similarly, overexpression of miR-29c and miR-200c in leiomyoma cells inhibited the expression of CDK2 protein and mRNA, whereas knockdown of this microRNAs (miRNA) had the opposite effect. Transfection of miR-29c, miR-200c, and miR-93 in primary leiomyoma cells resulted in a time-dependent inhibition of cell proliferation and cell motility. These results collectively indicate that the 3 miRNAs known to be downregulated in fibroid tumors are critical in regulation of cell proliferation because of their effects on 3 key cell cycle regulatory proteins, which are overexpressed in uterine leiomyomas.
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Affiliation(s)
- Tsai-Der Chuang
- 1 Department of Obstetrics and Gynecology, Harbor-UCLA Medical Center and LA-Biomed Research Institute, Torrance, CA, USA
| | - Omid Khorram
- 1 Department of Obstetrics and Gynecology, Harbor-UCLA Medical Center and LA-Biomed Research Institute, Torrance, CA, USA
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30
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Liu XX, Xiong HP, Huang JS, Qi K, Xu JJ. Highly expressed long non-coding RNA CRNDE promotes cell proliferation through PI3K/AKT signalling in non-small cell lung carcinoma. Clin Exp Pharmacol Physiol 2018; 44:895-902. [PMID: 28477368 DOI: 10.1111/1440-1681.12780] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/24/2017] [Accepted: 04/30/2017] [Indexed: 12/11/2022]
Abstract
Recently, numerous studies have revealed that long non-coding RNAs (lncRNAs) play complex roles in various lung diseases, while the colorectal neoplasia differentially expressed (CRNDE) functions in non-small cell lung carcinomas (NSCLC) remain largely unknown. In the present study, we investigate the role and mechanism of CRNDE in the progression of NSCLC. The mRNA level of CRNDE in NSCLC patients and cells was detected by qRT-PCR. The influence of CRNDE silencing or over-expression on NSCLC cell proliferation and growth were assessed by MTT and flow cytometry, respectively. We also investigated the effect of abnormal CRNDE expression on cyclins and PI3K/AKT pathway. Furthermore, si-CRNDE NSCLC cell lines were injected subcutaneously into nude mice to explore tumour formation in vivo. The expression of CRNDE was significantly upregulated in NSCLC patients and cells. In addition, both loss and gain function assays revealed that CRNDE promoted NSCLC cell proliferation and growth both in vitro and in vivo. Moreover, CRNDE regulated the cell cycle transition from G0 /G1 stage to S stage and modulated the expression of CDK4, CDK6 and CCNE1. We further illustrated that CRNDE activated PI3K/AKT signalling in NSCLC cell lines. In conclusion, CRNDE was highly expressed in NSCLC malignant tissues and the heightened CRNDE strongly promoted NSCLC cell proliferation and growth through activating PI3K/AKT signalling; our results shed a light on utilizing CRNDE as a potential novel therapeutic target for the treatment of NSCLC.
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Affiliation(s)
- Xiao-Xiong Liu
- Department of Cardiothoracic Surgery, the Second Affiliated Hospital, Nanchang University, Nanchang, China.,Department of Thoracic Surgery, the Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Han-Peng Xiong
- Department of Thoracic Surgery, the Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jiu-Sheng Huang
- Department of Internal Medicine, Jishui People's Hospital of Ji'an City, Ji'an, China
| | - Kai Qi
- Department of Thoracic Surgery, the Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jian-Jun Xu
- Department of Cardiothoracic Surgery, the Second Affiliated Hospital, Nanchang University, Nanchang, China
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Inhibition of PHLPP2/cyclin D1 protein translation contributes to the tumor suppressive effect of NFκB2 (p100). Oncotarget 2018; 7:34112-30. [PMID: 27095572 PMCID: PMC5085141 DOI: 10.18632/oncotarget.8746] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 03/31/2016] [Indexed: 12/24/2022] Open
Abstract
Although the precursor protein of NFκB2 (p100) is thought to act as a tumor suppressor in mammalian cells, the molecular mechanism of its anti-tumor activity is far from clear. Here, we are, for the first time, to report that p100 protein expression was dramatically decreased in bladder cancers of N-butyl-N-(4-hydroxybutyl)-nitrosamine (BBN)-treated mice and human patients. Knockdown of p100 in cultured human bladder cancer cells promoted anchorage-independent growth accompanied with elevating abundance of cell-cycle-related proteins and accelerated cell-cycle progression. Above effects could be completely reversed by ectopically expression of p100, but not p52. Mechanistically, p100 inhibited Cyclin D1 protein translation by activating the transcription of LARP7 and its hosted miR-302d, which could directly bind to 3'-UTR of cyclin d1 mRNA and inhibited its protein translation. Furthermore, p100 suppressed the expression of PHLPP2 (PH domain and leucine-rich repeat protein phosphatases 2), thus promoting CREB phosphorylation at Ser133 and subsequently leading to miR-302d transcription. Taken together, our studies not only for the first time establish p100 as a key tumor suppressor of bladder cancer growth, but also identify a novel molecular cascade of PHLPP2/CREB/miR-302d that mediates the tumor suppressive function of p100.
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Cai F, Miao Y, Liu C, Wu T, Shen S, Su X, Shi Y. Pyrroline-5-carboxylate reductase 1 promotes proliferation and inhibits apoptosis in non-small cell lung cancer. Oncol Lett 2017; 15:731-740. [PMID: 29403556 PMCID: PMC5780737 DOI: 10.3892/ol.2017.7400] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/27/2016] [Indexed: 12/19/2022] Open
Abstract
Disordered tumor cell metabolism is involved in the process of tumorigenesis. Proline metabolism is of critical importance for tumor cells, and pyrroline-5-carboxylate reductase 1 (PYCR1), a key proline biosynthesis enzyme, has been reported to be overexpressed in prostate cancer and to promote tumor cell growth in breast cancer. The present study investigated the relationship between PYCR1 and non-small cell lung cancer (NSCLC). The results revealed that PYCR1 was overexpressed in NSCLC tumor tissues compared with adjacent normal tissues. High PYCR1 expression was associated with poor prognosis in patients with NSCLC. Following knockdown of PYCR1 by small interfering RNA, cell proliferation was revealed to be significantly inhibited and the cell cycle was arrested, while apoptosis was increased in SPC-A1 and H1703 NSCLC cells. Furthermore, the silencing of PYCR1 resulted in the downregulation of expression of the cell cycle regulator cyclin D1, the regulator of the mitochondrial apoptotic pathway B-cell lymphoma-2, and B-cell lymphoma-extra large. The results of the present study indicated the involvement of PYCR1 in the proliferation and apoptosis of NSCLC. Therefore, PYCR1 may be a novel therapeutic target for inhibiting cell proliferation in lung cancer.
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Affiliation(s)
- Feng Cai
- Department of Respiratory Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China.,Department of Respiratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Yingying Miao
- Department of Respiratory Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Chenyang Liu
- Department of Respiratory Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Ting Wu
- Department of Respiratory Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Simei Shen
- Department of Respiratory Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Xin Su
- Department of Respiratory Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Yi Shi
- Department of Respiratory Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
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Zardavas D, Pondé N, Tryfonidis K. CDK4/6 blockade in breast cancer: current experience and future perspectives. Expert Opin Investig Drugs 2017; 26:1357-1372. [PMID: 29027483 DOI: 10.1080/13543784.2017.1389896] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Dysregulated cellular proliferation, one of the hallmarks of cancer, is mediated by aberrant activation of the cell cycle machinery through the biological effects of cyclin-dependent kinases (CDKs). The clinical development of non-selective CDK inhibitors failed due to combined lack of efficacy and excessive toxicity reported by clinical trials across different cancer types. The clinical development of second generation, CDK4/6-selective inhibitors, namely palbociclib, abemaciclib and ribociclib, led to practice-changing results in the setting of breast cancer. Areas covered: This review illustrates how CDK4/6-selective inhibitors got approval for the treatment of patients with either newly diagnosed or pretreated advanced hormone receptor positive, HER2-negative breast cancer. Furthermore, data about potential predictive biomarkers, as well as preclinical and preliminary clinical evidence for potential antitumor activity of CDK4/6 inhibition in other breast cancer subtypes is provided. Expert opinion: Future clinical development of CDK4/6 inhibitors in breast cancer will focus on the following aspects: i) optimization of treatment sequencing for patients with advanced disease, ii) early-stage disease, iii) other subtypes of breast cancer in rationally chosen therapeutic combinations and iv) the identification of predictive biomarkers.
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Affiliation(s)
- Dimitrios Zardavas
- a Medical Department , Breast International Group (BIG) , Brussels , Belgium
| | - Noam Pondé
- b Institut Jules Bordet , Université Libre de Bruxelles (ULB) , Brussels , Belgium
| | - Konstantinos Tryfonidis
- c Medical Department , European Organization for Research and Treatment of Cancer (EORTC) , Brussels , Belgium
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34
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Jørgensen JT, Nielsen KB, Kjærsgaard G, Jepsen A, Mollerup J. Gene Signal Distribution and HER2 Amplification in Gastroesophageal Cancer. J Cancer 2017; 8:1517-1524. [PMID: 28775770 PMCID: PMC5535706 DOI: 10.7150/jca.17878] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/31/2017] [Indexed: 12/22/2022] Open
Abstract
Background: HER2 serves as an important therapeutic target in gastroesophageal cancer. Differences in HER2 gene signal distribution patterns can be observed at the tissue level, but how it influences the HER2 amplification status has not been studied so far. Here, we investigated the link between HER2 amplification and the different types of gene signal distribution. Methods: Tumor samples from 140 patients with gastroesophageal adenocarcinoma where analyzed using the HER2 IQFISH pharmDx™ assay. Specimens covered non-amplified and amplified cases with a preselected high proportion of HER2 amplified cases. Based on the HER2/CEN-17 ratio, specimens were categorized into amplified or non-amplified. The signal distribution patterns were divided into homogeneous, heterogeneous focal or heterogeneous mosaic. The study was conducted based on anonymized specimens with limited access to clinicopathological data. Results: Among the 140 analyzed specimens 83 had a heterogeneous HER2 signal distribution, with 62 being focal and 21 of the mosaic type. The remaining 57 specimens had a homogeneous signal distribution. HER2 amplification was observed in 63 of the 140 specimens, and nearly all (93.7%) were found among specimens with a heterogeneous focal signal distribution (p<0.0001). The mean HER2/CEN-17 ratio for the focal heterogeneous group was 8.75 (CI95%: 6.87 - 10.63), compared to 1.53 (CI95%: 1.45 - 1.61) and 1.70 (CI95%: 1.22 - 2.18) for the heterogeneous mosaic and homogeneous groups, respectively, (p<0.0001). Conclusions: A clear relationship between HER2 amplification and the focal heterogeneous signal distribution was demonstrated in tumor specimens from patients with gastroesophageal cancer. Furthermore, we raise the hypothesis that the signal distribution patterns observed with FISH might be related to different subpopulations of HER2 positive tumor cells.
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Affiliation(s)
| | | | - Gitte Kjærsgaard
- Agilent Technologies, Produktionsvej 42, DK-2600 Glostrup, Denmark
| | - Anna Jepsen
- Agilent Technologies, Produktionsvej 42, DK-2600 Glostrup, Denmark
| | - Jens Mollerup
- Agilent Technologies, Produktionsvej 42, DK-2600 Glostrup, Denmark
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35
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Watanabe M, Iizumi Y, Sukeno M, Iizuka-Ohashi M, Sowa Y, Sakai T. The pleiotropic regulation of cyclin D1 by newly identified sesaminol-binding protein ANT2. Oncogenesis 2017; 6:e311. [PMID: 28368390 PMCID: PMC5520487 DOI: 10.1038/oncsis.2017.10] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 02/03/2017] [Accepted: 02/12/2017] [Indexed: 12/14/2022] Open
Abstract
The expression of cyclin D1 is upregulated in various cancer cells by diverse mechanisms, such as increases in mRNA levels, the promotion of the translation by mammalian target of rapamycin complex 1 (mTORC1) signaling and the protein stabilization. We here show that sesaminol, a sesame lignan, reduces the expression of cyclin D1 with decreasing mRNA expression levels, inhibiting mTORC1 signaling and promoting proteasomal degradation. We subsequently generated sesaminol-immobilized FG beads to newly identify sesaminol-binding proteins. As a consequence, we found that adenine nucleotide translocase 2 (ANT2), the inner mitochondrial membrane protein, directly bound to sesaminol. Consistent with the effects of sesaminol, the depletion of ANT2 caused a reduction in cyclin D1 with decreases in its mRNA levels, mTORC1 inhibition and the proteasomal degradation of its protein, suggesting that sesaminol negatively regulates the function of ANT2. Furthermore, we screened other ANT2-binding compounds and found that the proliferator-activated receptor-γ agonist troglitazone also reduced cyclin D1 expression in a multifaceted manner, analogous to that of the sesaminol treatment and ANT2 depletion. Therefore, the chemical biology approach using magnetic FG beads employed in the present study revealed that sesaminol bound to ANT2, which may pleiotropically upregulate cyclin D1 expression at the mRNA level and protein level with mTORC1 activation and protein stabilization. These results suggest the potential of ANT2 as a target against cyclin D1-overexpressing cancers.
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Affiliation(s)
- M Watanabe
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Iizumi
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - M Sukeno
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - M Iizuka-Ohashi
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Division of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Sowa
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Sakai
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
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36
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Ramos-García P, Gil-Montoya JA, Scully C, Ayén A, González-Ruiz L, Navarro-Triviño FJ, González-Moles MA. An update on the implications of cyclin D1 in oral carcinogenesis. Oral Dis 2017; 23:897-912. [DOI: 10.1111/odi.12620] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/07/2016] [Accepted: 12/01/2016] [Indexed: 12/11/2022]
Affiliation(s)
- P Ramos-García
- School of Dentistry; University of Granada; Granada Spain
| | - JA Gil-Montoya
- School of Dentistry; University of Granada; Granada Spain
- Instituto de Biomedicina; University of Granada; Granada Spain
| | - C Scully
- University College of London; London UK
| | - A Ayén
- School of Medicine; University of Granada; Granada Spain
| | - L González-Ruiz
- Servicio de Dermatología; Hospital General Universitario de Ciudad Real; Ciudad Real Spain
| | - FJ Navarro-Triviño
- Servicio de Dermatología; Complejo Hospitalario San Cecilio; Granada Spain
| | - MA González-Moles
- School of Dentistry; University of Granada; Granada Spain
- Instituto de Biomedicina; University of Granada; Granada Spain
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37
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Lin Z, Sheng H, You C, Cai M, Zhang Y, Yu LS, Yu X, Lin J, Zhang N. Inhibition of the CyclinD1 promoter in response to sonic hedgehog signaling pathway transduction is mediated by Gli1. Exp Ther Med 2016; 13:307-314. [PMID: 28123507 PMCID: PMC5244851 DOI: 10.3892/etm.2016.3969] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 10/21/2016] [Indexed: 12/15/2022] Open
Abstract
Medulloblastoma (MB) is the most common malignant tumor of the central nervous system in children. Accumulating evidence suggests a major role for the activation of the sonic hedgehog (SHH) signaling pathway in the development of MB cells; however, the mechanisms underlying the effect of this pathway on tumor survival and growth remain poorly understood. The Gli family zinc finger 1 (Gli1) transcription factor is considered as a mediator of the SHH signaling pathway in MB cells. Therefore, the present study investigated whether the SHH signaling pathway promotes the apoptosis of MB cells via downregulation of Gli1. GANT61, a novel Gli1 inhibitor, is known to have an in vitro activity against tumors. In the current study, Daoy cells were treated with different concentrations of GANT61 for 24 h, and the effect on cell proliferation was assayed by cell counting kit-8 assay. In addition, the cell cycle progression and apoptosis were assayed by flow cytometry analysis and hematoxylin-eosin (HE) staining. The effects of GANT61 treatment on SHH signaling pathway at the mRNA level were assayed by polymerase chain reaction (PCR). To further elucidate the inhibitory effects of GANT61 on the expression of Gli1 and CyclinD1, their protein levels were examined by western blot and immunofluorescence. The results indicated that GANT61 significantly inhibited the proliferation of Daoy cells in a dose-dependent manner, compared with the control group (P<0.05). HE staining revealed that cells had increasingly abnormal protuberance with increasing GANT61 concentration. Flow cytometry analysis also demonstrated that GANT61 induced G1/S arrest and apoptosis of Daoy cells in a dose-dependent manner (P<0.05). Gli1 and CyclinD1 mRNA expression levels were downregulated by GANT61 treatment (P<0.05); similarly, their protein levels were downregulated by GANT61 treatment in a dose-dependent manner (P<0.05). In conclusion, Gli1 expression was significantly associated with CyclinD1 expression in MB. These data demonstrated that Gli1 is an important mediator of the SHH pathway activity in MB, and may be a novel agent for use in combined chemotherapeutic regimens.
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Affiliation(s)
- Zhongxiao Lin
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Hansong Sheng
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Chaoguo You
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Ming Cai
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yiping Zhang
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Li Sheng Yu
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiaoming Yu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Jian Lin
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Nu Zhang
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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38
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Smina TP, Nitha B, Devasagayam TPA, Janardhanan KK. Ganoderma lucidum total triterpenes induce apoptosis in MCF-7 cells and attenuate DMBA induced mammary and skin carcinomas in experimental animals. Mutat Res 2016; 813:45-51. [PMID: 28010928 DOI: 10.1016/j.mrgentox.2016.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 11/21/2016] [Accepted: 11/29/2016] [Indexed: 01/08/2023]
Abstract
Ganoderma lucidum total triterpenes were evaluated for its apoptosis-inducing and anti-cancer activities. Cytotoxicity and pro-apoptotic effect of total triterpenes were evaluated in human breast adenocarcinoma (MCF-7) cell line using MTT assay and DNA fragmentation analysis. Total triterpenes induced apoptosis in MCF-7 cells by down-regulating the levels of cyclin D1, Bcl-2, Bcl-xL and also by up-regulating the levels of Bax and caspase-9. Anti-carcinogenicity of total triterpenes was analysed using dimethyl benz [a] anthracene (DMBA) induced skin papilloma and mammary adenocarcinoma in Swiss albino mice and Wistar rats respectively. Topical application of 5mg, 10mg and 20mg total triterpenes reduced the incidence of skin papilloma by 62.5, 37.5 and 12.5% respectively. Incidence of the mammary tumour was also reduced significantly by 33.33, 66.67 and 16.67% in 10, 50 and 100mg/kg b.wt. total triterpenes treated animals respectively. Total triterpenes were also found to reduce the average number of tumours per animal and extended the tumour latency period in both the models. The results indicate the potential cytotoxicity and anti-cancerous activity of total triterpenes, there by opens up a path to the development of a safe and successive chemo preventive agent of natural origin.
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Affiliation(s)
- T P Smina
- Amala Cancer Research Centre, Thrissur, Kerala 680 555, India; CeNTAB, SASTRA University, Thanjavur, Tamilnadu 613 401, India
| | - B Nitha
- Sree Ayyappa DB College, Eramallikkra, Alappuzha 689 109, Kerala, India
| | | | - K K Janardhanan
- Amala Cancer Research Centre, Thrissur, Kerala 680 555, India.
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Ferreira-Silva GÁ, Lages CCL, Sartorelli P, Hasegawa FR, Soares MG, Ionta M. Casearin D inhibits ERK phosphorylation and induces downregulation of cyclin D1 in HepG2 cells. Toxicol In Vitro 2016; 38:27-32. [PMID: 27806920 DOI: 10.1016/j.tiv.2016.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 10/27/2016] [Accepted: 10/28/2016] [Indexed: 10/20/2022]
Abstract
Cancer is a public health problem which represents the second cause of death in the world. In this framework, it is necessary to identify novel compounds with antineoplastic potential. Plants are an important source for discovering novel compounds with pharmacological potential. In this study, we aimed to investigate the antiproliferative potential of isolated compounds from Casearia sylvestris on tumor cell lines. Crude extract effectively reduced cell viability of 4 tumor cell lines (HepG2, A549, U251-MG, and HT-144) after 48h treatment. HepG2 and HT-144 were the most responsive cells. Three fractions (aqueous ethanol, n-hexane and ethyl acetate) were tested against HepG2 and HT-144 cells and we observed that compounds with antiproliferative activity were concentrated in n-hexane and ethyl acetate fractions. The casearins A, G and J were isolated from n-hexane fraction, while casearin D was obtained from ethyl acetate fraction. We demonstrated that casearin D significantly inhibited the clonogenic capacity of HepG2 cells after 24h exposure indicating its antiproliferative activity. In addition, G1/S transition cell cycle arrest in HepG2 cells was also observed. These effects are related, at least in part, to ability of the casearin D in reducing ERK phosphorylation and cyclin D1 expression levels.
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Affiliation(s)
- Guilherme Álvaro Ferreira-Silva
- Institute of Biomedical Sciences, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, 37130-000, Alfenas, MG, Brazil
| | - Carla Carolina Lopes Lages
- Institute of Chemistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, 37130-000, Alfenas, MG, Brazil
| | - Patricia Sartorelli
- Institute of Environmental Sciences, Chemical and Pharmaceutical, Federal University of Sao Paulo, Diadema, SP, Brazil
| | - Flávia Rie Hasegawa
- Institute of Environmental Sciences, Chemical and Pharmaceutical, Federal University of Sao Paulo, Diadema, SP, Brazil
| | - Marisi Gomes Soares
- Institute of Chemistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, 37130-000, Alfenas, MG, Brazil
| | - Marisa Ionta
- Institute of Biomedical Sciences, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, 37130-000, Alfenas, MG, Brazil.
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40
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Diagnostic utility of cyclin D1 in the diagnosis of small round blue cell tumors in children and adolescents. Hum Pathol 2016; 60:58-65. [PMID: 27984122 DOI: 10.1016/j.humpath.2016.07.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 07/20/2016] [Accepted: 07/22/2016] [Indexed: 02/06/2023]
Abstract
Small round blue cell tumors (SRBCTs) of children and adolescents are often diagnostically challenging lesions. With the increasing diagnostic approach based on small biopsies, there is the need of specific immunomarkers that can help in the differential diagnosis among the different tumor histotypes to assure the patient a correct diagnosis for proper treatment. Based on our recent studies showing cyclin D1 overexpression in both Ewing sarcoma/primitive peripheral neuroectodermal tumor (EWS/pPNET) and peripheral neuroblastic tumors (neuroblastoma and ganglioneuroblastoma), we immunohistochemically assessed cyclin D1 immunoreactivity in 128 cases of SRBCTs in children and adolescents to establish its potential utility in the differential diagnosis. All cases of EWS/pPNET and the undifferentiated/poorly differentiated neuroblastomatous component of all peripheral neuroblastic tumors exhibited strong and diffuse nuclear staining (>50% of neoplastic cells) for cyclin D1. In contrast, this marker was absent from rhabdomyosarcoma (regardless of subtype) and lymphoblastic lymphoma (either B- or T-cell precursors), whereas it was only focally detected (<5% of neoplastic cells) in some cases of Wilms tumor (blastemal component) and desmoplastic small round cell tumor. Our findings suggest that cyclin D1 can be exploitable as a diagnostic adjunct to conventional markers in confirming the diagnosis of EWS/pPNET or neuroblastoma/ganglioneuroblastoma. Its use in routine practice may also be helpful for those cases of SRBCT with undifferentiated morphology that are difficult to diagnose after application of the conventional markers.
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41
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Shao K, Shi T, Yang Y, Wang X, Xu D, Zhou P. Highly expressed lncRNA CRNDE promotes cell proliferation through Wnt/β-catenin signaling in renal cell carcinoma. Tumour Biol 2016; 37:10.1007/s13277-016-5440-0. [PMID: 27714674 DOI: 10.1007/s13277-016-5440-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 09/23/2016] [Indexed: 01/16/2023] Open
Abstract
Recently, numerous studies revealed that long non-coding RNAs (lncRNAs) play complex roles in the field of tumor biology, while the functions of lncRNA in renal cell carcinoma (RCC) remain largely unknown. In the current study, we retrieved Oncomine database and found a lncRNA colorectal neoplasia differentially expressed (CRNDE) which is highly expressed in different cohorts of RCC patients; this clue reminds us that CRNDE might exert its functions in RCC tumorigenesis. We then detected the level of CRNDE in fresh RCC tissues and found that CRNDE is significantly up-regulated compared with adjacent tissues. Furthermore, both loss and gain function assays revealed that CRNDE promotes RCC cell proliferation and growth both in vitro and in vivo.In addition, we found that CRNDE regulates the cell cycle transition from G0/G1 stage to S stage and modulates the expression of CCND1 and CCNE1. Moreover, we further illustrated that CRNDE activates Wnt/β-catenin signaling in RCC cell lines. Taken together, in the current study, we found that lncRNA CRNDE is highly expressed in RCC malignant tissues and the heightened CRNDE robustly promotes RCC cell proliferation through activating Wnt/β-catenin signaling; our findings enlarge our knowledge in the molecular pathology of RCC tumorigenesis.
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Affiliation(s)
- Kun Shao
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Er Road, Shanghai, 200025, China
| | - Tianming Shi
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Er Road, Shanghai, 200025, China
| | - Yang Yang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Er Road, Shanghai, 200025, China
| | - Xianghui Wang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Er Road, Shanghai, 200025, China
| | - Da Xu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Er Road, Shanghai, 200025, China
| | - Peijun Zhou
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Er Road, Shanghai, 200025, China.
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Karim S, Al-Maghrabi JA, Farsi HMA, Al-Sayyad AJ, Schulten HJ, Buhmeida A, Mirza Z, Al-Boogmi AA, Ashgan FT, Shabaad MM, NourEldin HF, Al-Ghamdi KBM, Abuzenadah A, Chaudhary AGA, Al-Qahtani MH. Cyclin D1 as a therapeutic target of renal cell carcinoma- a combined transcriptomics, tissue microarray and molecular docking study from the Kingdom of Saudi Arabia. BMC Cancer 2016; 16:741. [PMID: 27766950 PMCID: PMC5073805 DOI: 10.1186/s12885-016-2775-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Renal cell carcinoma (RCC) is a seventh ranked malignancy with poor prognosis. RCC is lethal at metastatic stage as it does not respond to conventional systemic treatments, and there is an urgent need to find out promising novel biomarkers for effective treatment. The goal of this study was to evaluate the biomarkers that can be potential therapeutic target and predict effective inhibitors to treat the metastatic stage of RCC. METHODS We conducted transcriptomic profiling to identify differentially expressed genes associated with RCC. Molecular pathway analysis was done to identify the canonical pathways and their role in RCC. Tissue microarrays (TMA) based immunohistochemical stains were used to validate the protein expression of cyclinD1 (CCND1) and were scored semi-quantitatively from 0 to 3+ on the basis of absence or presence of staining intensity in the tumor cell. Statistical analysis determined the association of CCND1 expression with RCC. Molecular docking analyses were performed to check the potential of two natural inhibitors, rutin and curcumin to bind CCND1. RESULTS We detected 1490 significantly expressed genes (1034, upregulated and 456, downregulated) in RCC using cutoff fold change 2 and p value < 0.05. Hes-related family bHLH transcription factor with YRPW motif 1 (HEY1), neuropilin 2 (NRP2), lymphoid enhancer-binding factor 1 (LEF1), and histone cluster 1 H3h (HIST1H3H) were most upregulated while aldolase B, fructose-bisphosphate (ALDOB), solute carrier family 12 (SLC12A1), calbindin 1 (CALB1) were the most down regulated genes in our dataset. Functional analysis revealed Wnt/β-catenin signaling as the significantly activated canonical pathway (z score = 2.53) involving cyclin D1 (CCND1). CCND1 was overexpressed in transcriptomic studies (FC = 2.26, p value = 0.0047) and TMA results also showed the positive expression of CCND1 in 53 % (73/139) of RCC cases. The ligands - rutin and curcumin bounded with CCND1 with good affinity. CONCLUSION CCND1 was one of the important upregulated gene identified in microarray and validated by TMA. Docking study showed that CCND1 may act as a potential therapeutic target and its inhibition could focus on the migratory, invasive, and metastatic potential of RCC. Further in vivo and in vitro molecular studies are needed to investigate the therapeutic target potential of CCND1 for RCC treatment.
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Affiliation(s)
- Sajjad Karim
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Jaudah A Al-Maghrabi
- Department of Pathology, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Pathology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Hasan M A Farsi
- Department of Urology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ahmad J Al-Sayyad
- Department of Urology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hans-Juergen Schulten
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdelbaset Buhmeida
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Zeenat Mirza
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Alaa A Al-Boogmi
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fai T Ashgan
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Manal M Shabaad
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hend F NourEldin
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khalid B M Al-Ghamdi
- Department of Otorhinolaryngology and Head and Neck Surgery, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Adel Abuzenadah
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,KACST Innovation Center for Personalized Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Adeel G A Chaudhary
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed H Al-Qahtani
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
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43
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Intracellular NF-HEV/IL-33 harbors essential roles in Ras-induced cellular transformation by contributing to cyclin D1 protein synthesis. Cell Signal 2016; 28:1025-36. [PMID: 27155324 DOI: 10.1016/j.cellsig.2016.04.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 03/10/2016] [Accepted: 04/27/2016] [Indexed: 12/19/2022]
Abstract
A member of the interleukin-1 family, interleukin-33 (NF-HEV/IL-33), is a ligand for the receptor, ST2L and stimulates the production of Th2 cytokines. Although IL-33 localizes to the nucleus and may be involved in the regulation of transcription independent of ST2L, its functions in the nucleus currently remain unclear. We herein demonstrated that the expression of IL-33 was markedly enhanced in NIH-3T3 cells transformed by an oncogenic H-Ras mutant (H-Ras (G12V)), and the induced IL-33 was mainly located in the nuclei of these cells. The enforced expression of IL-33 accelerated H-Ras (G12V)-induced transformation in NIH-3T3 cells, and this transforming activity was markedly reduced by the knockdown of IL-33 with shRNA. We subsequently analyzed several signaling molecules regulated by Ras in order to elucidate the mechanism by which IL-33 contributes to Ras (G12V)-induced transformation. We found that the knockdown of IL-33 effectively attenuated the Ras (G12V)-induced expression of cyclin D1. However, the knockdown of IL-33 failed to affect cyclin D1 mRNA expression levels, and epoxomicin, a proteasome inhibitor, did not cancel the IL-33 knockdown-induced down-regulation of its protein levels. We showed that Ras (G12V)-induced cyclin D1 protein synthesis was markedly suppressed by the knockdown of IL-33. Taken together, the results of the present study strongly suggest a novel role for IL-33 in cellular transformation.
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Kumari S, Puneet, Prasad SB, Yadav SS, Kumar M, Khanna A, Dixit VK, Nath G, Singh S, Narayan G. Cyclin D1 and cyclin E2 are differentially expressed in gastric cancer. Med Oncol 2016; 33:40. [DOI: 10.1007/s12032-016-0754-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 01/01/2023]
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45
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Mueller S, Huard J, Waldow K, Huang X, D'Alessandro LA, Bohl S, Börner K, Grimm D, Klamt S, Klingmüller U, Schilling M. T160‐phosphorylated CDK2 defines threshold for HGF dependent proliferation in primary hepatocytes. Mol Syst Biol 2016; 11:795. [PMID: 26148348 PMCID: PMC4380929 DOI: 10.15252/msb.20156032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Liver regeneration is a tightly controlled process mainly achieved by proliferation of usually quiescent hepatocytes. The specific molecular mechanisms ensuring cell division only in response to proliferative signals such as hepatocyte growth factor (HGF) are not fully understood. Here, we combined quantitative time-resolved analysis of primary mouse hepatocyte proliferation at the single cell and at the population level with mathematical modeling. We showed that numerous G1/S transition components are activated upon hepatocyte isolation whereas DNA replication only occurs upon additional HGF stimulation. In response to HGF, Cyclin:CDK complex formation was increased, p21 rather than p27 was regulated, and Rb expression was enhanced. Quantification of protein levels at the restriction point showed an excess of CDK2 over CDK4 and limiting amounts of the transcription factor E2F-1. Analysis with our mathematical model revealed that T160 phosphorylation of CDK2 correlated best with growth factor-dependent proliferation, which we validated experimentally on both the population and the single cell level. In conclusion, we identified CDK2 phosphorylation as a gate-keeping mechanism to maintain hepatocyte quiescence in the absence of HGF.
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Affiliation(s)
- Stephanie Mueller
- Division Systems Biology of Signal Transduction, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Jérémy Huard
- Analysis and Redesign of Biological Networks, Max Planck Institute for Dynamics of Complex Technical SystemsMagdeburg, Germany
| | - Katharina Waldow
- Division Systems Biology of Signal Transduction, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Xiaoyun Huang
- Division Systems Biology of Signal Transduction, German Cancer Research Center (DKFZ)Heidelberg, Germany
- Translational Lung Research Center (TLRC), Member of the German Center for Lung Research (DZL)Heidelberg, Germany
| | - Lorenza A D'Alessandro
- Division Systems Biology of Signal Transduction, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Sebastian Bohl
- Division Systems Biology of Signal Transduction, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Kathleen Börner
- Centre for Infectious Diseases, Virology, Heidelberg University Hospital, Cluster of Excellence CellNetworksHeidelberg, Germany
- German Center for Infection Research (DZIF), Partner Site HeidelbergHeidelberg, Germany
| | - Dirk Grimm
- Centre for Infectious Diseases, Virology, Heidelberg University Hospital, Cluster of Excellence CellNetworksHeidelberg, Germany
| | - Steffen Klamt
- Analysis and Redesign of Biological Networks, Max Planck Institute for Dynamics of Complex Technical SystemsMagdeburg, Germany
| | - Ursula Klingmüller
- Division Systems Biology of Signal Transduction, German Cancer Research Center (DKFZ)Heidelberg, Germany
- Translational Lung Research Center (TLRC), Member of the German Center for Lung Research (DZL)Heidelberg, Germany
- ** Corresponding author. Tel: +49 6221 42 4481; Fax: +49 6221 42 4488; E-mail:
| | - Marcel Schilling
- Division Systems Biology of Signal Transduction, German Cancer Research Center (DKFZ)Heidelberg, Germany
- * Corresponding author. Tel: +49 6221 42 4485; Fax: +49 6221 42 4488; E-mail:
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Finn RS, Aleshin A, Slamon DJ. Targeting the cyclin-dependent kinases (CDK) 4/6 in estrogen receptor-positive breast cancers. Breast Cancer Res 2016; 18:17. [PMID: 26857361 PMCID: PMC4746893 DOI: 10.1186/s13058-015-0661-5] [Citation(s) in RCA: 220] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 12/10/2015] [Indexed: 12/18/2022] Open
Abstract
Despite significant advances in early detection and treatment, breast cancer still remains a major cause of morbidity and mortality for women. Our understanding of the molecular heterogeneity of the disease has significantly expanded over the past decade and the role of cell cycle signaling in both breast cancer oncogenesis and anti-estrogen resistance has gained increasing attention. The mammalian cell cycle is driven by a complex interplay between cyclins and their associated cyclin-dependent kinase (CDK) partners, and dysregulation of this process is one of the hallmarks of cancer. Despite this, initial results with broadly acting CDK inhibitors were largely disappointing. However, recent preclinical and phase I/II clinical studies using a novel, oral, reversible CDK4/6 inhibitor, palbociclib (PD-0332991), have validated the role of CDK4/6 as a potential target in estrogen receptor-positive (ER+) breast cancers. This review highlights our current understanding of CDK signaling in both normal and malignant breast tissues, with special attention placed on recent clinical advances in inhibition of CDK4/6 in ER+ disease.
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Affiliation(s)
- Richard S Finn
- Geffen School of Medicine at UCLA, Department of Medicine, Division of Hematology Oncology, 2825 Santa Monica Blvd, Santa Monica, CA, 90404, USA.
| | - Alexey Aleshin
- Geffen School of Medicine at UCLA, Department of Medicine, Division of Hematology Oncology, 2825 Santa Monica Blvd, Santa Monica, CA, 90404, USA
| | - Dennis J Slamon
- Stanford School of Medicine, 291 Campus Drive, Stanford, CA, 94305, USA
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Cai Z, Liang P, Xuan J, Wan J, Guo H. ECRG4 as a novel tumor suppressor gene inhibits colorectal cancer cell growth in vitro and in vivo. Tumour Biol 2016; 37:9111-20. [DOI: 10.1007/s13277-015-4775-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/29/2015] [Indexed: 12/26/2022] Open
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Pereira RM, Ferreira-Silva GÁ, Pivatto M, Santos LDÁ, Bolzani VDS, Chagas de Paula DA, Oliveira JCD, Viegas Júnior C, Ionta M. Alkaloids derived from flowers of Senna spectabilis, (-)-cassine and (-)-spectaline, have antiproliferative activity on HepG2 cells for inducing cell cycle arrest in G1/S transition through ERK inactivation and downregulation of cyclin D1 expression. Toxicol In Vitro 2015; 31:86-92. [PMID: 26616281 DOI: 10.1016/j.tiv.2015.11.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/17/2015] [Accepted: 11/22/2015] [Indexed: 11/16/2022]
Abstract
Cancer is one of the most critical problems of public health in the world and one of the main challenges for medicine in this century. Unfortunately, most patients are diagnosed at advanced stage, when the treatment options are palliative. Consequently, the search for novel therapeutic options is imperative. In the context, the plants represent an important source for discovering of novel compounds with pharmacological potential including antineoplastic agents. Herein, we aimed to investigate in vitro antiproliferative and cytotoxic potentials of an alkaloid mixture derived from Senna spectabilis, (−)-cassine (1) and (−)-spectaline (2). These alkaloids reduced cell viability in a concentration-dependent manner of six tumor cell lines. From initial screening, HepG2 cells were selected for further investigations. We show that alkaloids 1/2 have an important antiproliferative activity on HepG2 cells due to their ability in inducing cell cycle arrest in G1/S transition. This effect was associated to ERK inactivation and down-regulation of cyclin D1 expression. In addition, we evidenced a disruption of the microfilaments and microtubules in a consequence of the treatment. Taken together, the data showed by the first time that alkaloids 1/2 strongly inhibit cell proliferation of hepatocellular carcinoma cells. Therefore, they represent promise antitumor compounds against liver cancer and should be considered for further anticancer in vivo studies.
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Affiliation(s)
- Rodrigo Machado Pereira
- Institute of Biomedical Sciences, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, zip code 37130-000 Alfenas, MG, Brazil
| | - Guilherme Álvaro Ferreira-Silva
- Institute of Biomedical Sciences, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, zip code 37130-000 Alfenas, MG, Brazil
| | - Marcos Pivatto
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal 'University of Uberlândia, Avenida João Naves de Ávila, 2121, zip code 38408-144 Uberlândia, MG, Brazil
| | - Luciana de Ávila Santos
- Institute of Chemistry, State University of São Paulo, Rua Francisco Degni s/n, zip code 14801-970 Araraquara, SP, Brazil
| | - Vanderlan da Silva Bolzani
- Institute of Chemistry, State University of São Paulo, Rua Francisco Degni s/n, zip code 14801-970 Araraquara, SP, Brazil
| | - Daniela Aparecida Chagas de Paula
- Laboratory of Phytochemistry and Medicinal Chemistry (LFQM), Institute of Chemistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, zip code 37130-000 Alfenas, MG, Brazil
| | - Jaqueline Carvalho de Oliveira
- Institute of Natural Science, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, zip code 37130-000 Alfenas, MG, Brazil
| | - Cláudio Viegas Júnior
- Laboratory of Research on Medicinal Chemistry (PeQuiM), Institute of Chemistry, Federal University of Alfenas, Av. Jovino Fernandes Sales, 2600, zip code 37130-000 Alfenas, MG, Brazil
| | - Marisa Ionta
- Institute of Biomedical Sciences, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, zip code 37130-000 Alfenas, MG, Brazil.
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Zampieri A, Champagne J, Auzemery B, Fuentes I, Maurel B, Bienvenu F. Hyper sensitive protein detection by Tandem-HTRF reveals Cyclin D1 dynamics in adult mouse. Sci Rep 2015; 5:15739. [PMID: 26503526 PMCID: PMC4622077 DOI: 10.1038/srep15739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 09/29/2015] [Indexed: 11/24/2022] Open
Abstract
We present here a novel method for the semi-quantitative detection of low abundance proteins in solution that is both fast and simple. It is based on Homogenous Time Resolved Förster Resonance Energy Transfer (HTRF), between a lanthanide labeled donor antibody and a d2 or XL665 labeled acceptor antibody that are both raised against different epitopes of the same target. This novel approach we termed “Tandem-HTRF”, can specifically reveal rare polypeptides from only a few microliters of cellular lysate within one hour in a 384-well plate format. Using this sensitive approach, we observed surprisingly that the core cell cycle regulator Cyclin D1 is sustained in fully developed adult organs and harbors an unexpected expression pattern affected by environmental challenge. Thus our method, Tandem-HTRF offers a promising way to investigate subtle variations in the dynamics of sparse proteins from limited biological material.
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Affiliation(s)
- Alexandre Zampieri
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, F-34094, France.,INSERM, U1191, Montpellier, F-34094, France.,Université de Montpellier, UMR-5203, Montpellier, F-34094, France
| | - Julien Champagne
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, F-34094, France.,INSERM, U1191, Montpellier, F-34094, France.,Université de Montpellier, UMR-5203, Montpellier, F-34094, France
| | - Baptiste Auzemery
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, F-34094, France.,INSERM, U1191, Montpellier, F-34094, France.,Université de Montpellier, UMR-5203, Montpellier, F-34094, France
| | - Ivanna Fuentes
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, F-34094, France.,INSERM, U1191, Montpellier, F-34094, France.,Université de Montpellier, UMR-5203, Montpellier, F-34094, France
| | - Benjamin Maurel
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, F-34094, France.,INSERM, U1191, Montpellier, F-34094, France.,Université de Montpellier, UMR-5203, Montpellier, F-34094, France
| | - Frédéric Bienvenu
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, F-34094, France.,INSERM, U1191, Montpellier, F-34094, France.,Université de Montpellier, UMR-5203, Montpellier, F-34094, France.,Laboratory of Excellence from genome and epigenome to molecular medicine (EpiGenMed), F-34094 Montpellier, France
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50
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Hu Q, Chen J, Zhang J, Xu C, Yang S, Jiang H. IOX1, a JMJD2A inhibitor, suppresses the proliferation and migration of vascular smooth muscle cells induced by angiotensin II by regulating the expression of cell cycle-related proteins. Int J Mol Med 2015; 37:189-96. [PMID: 26530537 DOI: 10.3892/ijmm.2015.2393] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 10/01/2015] [Indexed: 11/06/2022] Open
Abstract
The epigenetic modification of vascular smooth muscle cell (VSMC) phenotypic switching, proliferation, migration, apoptosis and extracellular matrix synthesis is known to occur in atherosclerosis. The aim of the present study was to investigate the effects of IOX1, a Jumonji domain-containing 2A (JMJD2A) inhibitor, on regulation of the cell cycle in angiotensin II (Ang II)-stimulated VSMCs and to elucidate the possible mechanisms involved. The proliferation and migration of the Ang II-stimulated VSMCs in the presence or absence of IOX1 were evaluated in vitro. Flow cytometric analysis was used to determine the effects of IOX1 on cell cycle progression. RT-qPCR and western blot analysis were carried out to measure the expression levels of cell cycle-related genes. The trimethylation of histone H3 lysine 9 (H3K9me3) at the promoters of these genes was detected by chromatin immunoprecipitation (ChIP) assay. We confirmed that the JMJD2A levels were increased, whereas the H3K9me3 levels were decreased in the Ang II-stimulated VSMCs. The inhibition of JMJD2A by IOX1 suppressed the Ang II-induced cell proliferation, migration and cell cycle progression by inhibiting cyclin D1 expression and increasing p21 expression. The underlying mechanisms were related to the restoration of the H3K9me3 levels at the promoters of these genes. In conclusion, the findings of our study indicate that IOX1 exerts its anti-proliferative and anti-migratory effects by regulating the expression of the cell cycle-related proteins, cyclin D1 and p21.
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Affiliation(s)
- Qi Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jing Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jing Zhang
- Department of Cardiology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei 443000, P.R. China
| | - Changwu Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Shuo Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hong Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
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