1
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Chen S, He Z, Peng T, Zhou F, Wang G, Qian K, Ju L, Xiao Y, Wang X. PRR11 promotes ccRCC tumorigenesis by regulating E2F1 stability. JCI Insight 2021; 6:e145172. [PMID: 34499617 PMCID: PMC8525590 DOI: 10.1172/jci.insight.145172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 09/01/2021] [Indexed: 01/03/2023] Open
Abstract
Proline rich 11 (PRR11), a novel tumor-related gene, has been identified in different tumors. However, the relevant biological functions of PRR11 in human clear cell renal cell carcinoma (ccRCC) have not been studied. In this study, we first identified PRR11 as a biomarker of ccRCC and predictor of poor prognosis by bioinformatics. Then, we showed that PRR11 silencing substantially reduced ccRCC cell proliferation and migration in vitro and in vivo. Importantly, we found that PRR11 induced the degradation of the E2F1 protein through its interaction with E2F1, and PRR11 reduced the stability of the E2F1 protein in ccRCC cells, thereby affecting cell cycle progression. Further results indicated that the downregulation of E2F1 expression partially reversed the changes in ccRCC cell biology caused by PRR11 deletion. In addition, we showed that PRR11 was a target gene of c-Myc. The transcription factor c-Myc may have promoted the expression of PRR11 in ccRCC cells by binding to the PRR11 promoter region, thereby accelerating the progression of ccRCC. In summary, we found that PRR11 served as an oncogene in ccRCC, and PRR11 reduced the protein stability of E2F1 and could be activated by c-Myc.
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Affiliation(s)
| | | | | | | | - Gang Wang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Kaiyu Qian
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lingao Ju
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yu Xiao
- Department of Urology and.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xinghuan Wang
- Department of Urology and.,Research Center of Wuhan for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.,Medical Research Institute, Wuhan University, Wuhan, China
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2
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Caruso JA, Duong MT, Carey JPW, Hunt KK, Keyomarsi K. Low-Molecular-Weight Cyclin E in Human Cancer: Cellular Consequences and Opportunities for Targeted Therapies. Cancer Res 2018; 78:5481-5491. [PMID: 30194068 PMCID: PMC6168358 DOI: 10.1158/0008-5472.can-18-1235] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/18/2018] [Accepted: 07/18/2018] [Indexed: 01/03/2023]
Abstract
Cyclin E, a regulatory subunit of cyclin-dependent kinase 2 (CDK2), is central to the initiation of DNA replication at the G1/S checkpoint. Tight temporal control of cyclin E is essential to the coordination of cell-cycle processes and the maintenance of genome integrity. Overexpression of cyclin E in human tumors was first observed in the 1990s and led to the identification of oncogenic roles for deregulated cyclin E in experimental models. A decade later, low-molecular-weight cyclin E (LMW-E) isoforms were observed in aggressive tumor subtypes. Compared with full-length cyclin E, LMW-E hyperactivates CDK2 through increased complex stability and resistance to the endogenous inhibitors p21CIP1 and p27KIP1 LMW-E is predominantly generated by neutrophil elastase-mediated proteolytic cleavage, which eliminates the N-terminal cyclin E nuclear localization signal and promotes cyclin E's accumulation in the cytoplasm. Compared with full-length cyclin E, the aberrant localization and unique stereochemistry of LMW-E dramatically alters the substrate specificity and selectivity of CDK2, increasing tumorigenicity in experimental models. Cytoplasmic LMW-E, which can be assessed by IHC, is prognostic of poor survival and predicts resistance to standard therapies in patients with cancer. These patients may benefit from therapeutic modalities targeting the altered biochemistry of LMW-E or its associated vulnerabilities. Cancer Res; 78(19); 5481-91. ©2018 AACR.
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Affiliation(s)
- Joseph A Caruso
- Department of Pathology, University of California, San Francisco, San Francisco, California.
| | | | - Jason P W Carey
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kelly K Hunt
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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3
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Doostan I, Karakas C, Kohansal M, Low KH, Ellis MJ, Olson JA, Suman VJ, Hunt KK, Moulder SL, Keyomarsi K. Cytoplasmic Cyclin E Mediates Resistance to Aromatase Inhibitors in Breast Cancer. Clin Cancer Res 2017; 23:7288-7300. [PMID: 28947566 DOI: 10.1158/1078-0432.ccr-17-1544] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/08/2017] [Accepted: 09/19/2017] [Indexed: 01/15/2023]
Abstract
Purpose: Preoperative aromatase inhibitor (AI) therapy has demonstrated efficacy in hormone receptor (HR)-positive postmenopausal breast cancer. However, many patients have disease that is either intrinsically resistant to AIs or that responds initially but develops resistance after prolonged exposure. We have shown that patients with breast tumors expressing the deregulated forms of cyclin E [low molecular weight forms (LMW-E)] have poor overall survival. Herein, we hypothesize that LMW-E expression can identify HR-positive tumors that are unresponsive to neoadjuvant AI therapy due to the inability of AIs to induce a cytostatic effect.Experimental Design: LMW-E was examined in breast cancer specimens from 58 patients enrolled in the American College of Surgeons Oncology Group Z1031, a neoadjuvant AI clinical trial. The mechanisms of LMW-E-mediated resistance to AI were evaluated in vitro and in vivo using an inducible model system of cyclin E (full-length and LMW-E) in aromatase-overexpressing MCF7 cells.Results: Breast cancer recurrence-free interval was significantly worse in patients with LMW-E-positive tumors who received AI neoadjuvant therapy, compared with those with LMW-E negative tumors. Upon LMW-E induction, MCF7 xenografts were unresponsive to letrozole in vivo, resulting in increased tumor volume after treatment with AIs. LMW-E expression overcame cell-cycle inhibition by AIs in a CDK2/Rb-dependent manner, and inhibition of CDK2 by dinaciclib reversed LMW-E-mediated resistance, whereas treatment with palbociclib, a CDK4/6 inhibitor, did not.Conclusions: Collectively, these findings suggest that cell-cycle deregulation by LMW-E mediates resistance to AIs and a combination of CDK2 inhibitors and AIs may be an effective treatment in patients with HR-positive tumors that express LMW-E. Clin Cancer Res; 23(23); 7288-300. ©2017 AACR.
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Affiliation(s)
- Iman Doostan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, Texas
| | - Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mehrnoosh Kohansal
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kwang-Hui Low
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Matthew J Ellis
- Department of Breast Cancer, Baylor College of Medicine, Houston, Texas
| | - John A Olson
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina.,Department of Surgery, Greenebaum Cancer Center, University of Maryland, Baltimore, Maryland
| | - Vera J Suman
- Alliance Statistics and Data Center, Mayo Clinic, Rochester, Minnesota
| | - Kelly K Hunt
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Stacy L Moulder
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. .,Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, Texas
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4
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Pawlak M, Kikulska A, Wrzesinski T, Rausch T, Kwias Z, Wilczynski B, Benes V, Wesoly J, Wilanowski T. Potential protective role of Grainyhead-like genes in the development of clear cell renal cell carcinoma. Mol Carcinog 2017; 56:2414-2423. [DOI: 10.1002/mc.22682] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 04/18/2017] [Accepted: 05/19/2017] [Indexed: 01/20/2023]
Affiliation(s)
- Magdalena Pawlak
- Laboratory of Signal Transduction; Department of Cell Biology; Nencki Institute of Experimental Biology of Polish Academy of Sciences; Warsaw Poland
| | - Agnieszka Kikulska
- Laboratory of Signal Transduction; Department of Cell Biology; Nencki Institute of Experimental Biology of Polish Academy of Sciences; Warsaw Poland
| | - Tomasz Wrzesinski
- Faculty of Biology; Laboratory of High Throughput Technologies; Institute of Molecular Biology and Biotechnology; Adam Mickiewicz University; Poznan Poland
| | - Tobias Rausch
- Genomics Core Facility; European Molecular Biology Laboratory; Heidelberg Germany
| | - Zbigniew Kwias
- Department of Urology and Urological Oncology; Poznan University of Medical Sciences; Poznan Poland
| | - Bartek Wilczynski
- Faculty of Mathematics, Informatics and Mechanics; Institute of Informatics; University of Warsaw; Warsaw Poland
| | - Vladimir Benes
- Genomics Core Facility; European Molecular Biology Laboratory; Heidelberg Germany
| | - Joanna Wesoly
- Faculty of Biology; Laboratory of High Throughput Technologies; Institute of Molecular Biology and Biotechnology; Adam Mickiewicz University; Poznan Poland
| | - Tomasz Wilanowski
- Laboratory of Signal Transduction; Department of Cell Biology; Nencki Institute of Experimental Biology of Polish Academy of Sciences; Warsaw Poland
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5
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Hunt KK, Karakas C, Ha MJ, Biernacka A, Yi M, Sahin AA, Adjapong O, Hortobagyi GN, Bondy M, Thompson P, Cheung KL, Ellis IO, Bacus S, Symmans WF, Do KA, Keyomarsi K. Cytoplasmic Cyclin E Predicts Recurrence in Patients with Breast Cancer. Clin Cancer Res 2016; 23:2991-3002. [PMID: 27881578 DOI: 10.1158/1078-0432.ccr-16-2217] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 12/27/2022]
Abstract
Purpose: Low molecular weight cyclin E (LMW-E) detected by Western blot analysis predicts for reduced breast cancer survival; however, it is impractical for clinical use. LMW-E lacks a nuclear localization signal that leads to accumulation in the cytoplasm that can be detected by IHC. We tested the hypothesis that cytoplasmic staining of cyclin E can be used as a predictor of poor outcome in different subtypes of breast cancer using patient cohorts with distinct clinical and pathologic features.Experimental Design: We evaluated the subcellular localization of cyclin E in breast cancer specimens from 2,494 patients from 4 different cohorts: 303 from a prospective study and 2,191 from retrospective cohorts [NCI, MD Anderson Cancer Center (MDA), and the United Kingdom (UK)]. Median follow-up times were 8.0, 10.1, 13.5, and 5.7 years, respectively.Results: Subcellular localization of cyclin E on IHC was associated with full-length (nuclear) and low molecular weight isoforms (cytoplasmic) of cyclin E on Western blot analysis. In multivariable analysis, cytoplasmic cyclin E staining was associated with the greatest risk of recurrence compared with other prognostic factors across all subtypes in three (NCI, MDA, and UK) of the cohorts. In the MDA cohort, cytoplasmic cyclin E staining outperformed Ki67 and all other variables as prognostic factors.Conclusions: Cytoplasmic cyclin E identifies patients with the highest likelihood of recurrence consistently across different patient cohorts and subtypes. These patients may benefit from alternative therapies targeting the oncogenic isoforms of cyclin E. Clin Cancer Res; 23(12); 2991-3002. ©2016 AACR.
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Affiliation(s)
- Kelly K Hunt
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Min Jin Ha
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Anna Biernacka
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Min Yi
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Aysegul A Sahin
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Opoku Adjapong
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Gabriel N Hortobagyi
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Melissa Bondy
- Department of Pathology Administration, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA; Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Patricia Thompson
- Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, Tucson, Arizona, USA
| | | | - Ian O Ellis
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Sarah Bacus
- Quintiles Transnational Corp, Denver, Colorado, USA
| | - W Fraser Symmans
- Department of Pathology Administration, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA; Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Kim-Anh Do
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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6
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Czarnecka AM, Matak D, Szymanski L, Czarnecka KH, Lewicki S, Zdanowski R, Brzezianska-Lasota E, Szczylik C. Triiodothyronine regulates cell growth and survival in renal cell cancer. Int J Oncol 2016; 49:1666-78. [PMID: 27632932 DOI: 10.3892/ijo.2016.3668] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 07/25/2016] [Indexed: 11/05/2022] Open
Abstract
Triiodothyronine plays an important role in the regulation of kidney cell growth, differentiation and metabolism. Patients with renal cell cancer who develop hypothyreosis during tyrosine kinase inhibitor (TKI) treatment have statistically longer survival. In this study, we developed cell based model of triiodothyronine (T3) analysis in RCC and we show the different effects of T3 on renal cell cancer (RCC) cell growth response and expression of the thyroid hormone receptor in human renal cell cancer cell lines from primary and metastatic tumors along with human kidney cancer stem cells. Wild-type thyroid hormone receptor is ubiquitously expressed in human renal cancer cell lines, but normalized against healthy renal proximal tube cell expression its level is upregulated in Caki-2, RCC6, SKRC-42, SKRC-45 cell lines. On the contrary the mRNA level in the 769-P, ACHN, HKCSC, and HEK293 cells is significantly decreased. The TRβ protein was abundant in the cytoplasm of the 786-O, Caki-2, RCC6, and SKRC-45 cells and in the nucleus of SKRC-42, ACHN, 769-P and cancer stem cells. T3 has promoting effect on the cell proliferation of HKCSC, Caki-2, ASE, ACHN, SK-RC-42, SMKT-R2, Caki-1, 786-0, and SK-RC-45 cells. Tyrosine kinase inhibitor, sunitinib, directly inhibits proliferation of RCC cells, while thyroid hormone receptor antagonist 1-850 (CAS 251310‑57-3) has less significant inhibitory impact. T3 stimulation does not abrogate inhibitory effect of sunitinib. Renal cancer tumor cells hypostimulated with T3 may be more responsive to tyrosine kinase inhibition. Moreover, some tumors may be considered as T3-independent and present aggressive phenotype with thyroid hormone receptor activated independently from the ligand. On the contrary proliferation induced by deregulated VHL and or c-Met pathways may transgress normal T3 mediated regulation of the cell cycle.
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Affiliation(s)
- Anna M Czarnecka
- Department of Oncology with Laboratory of Molecular Oncology, Military Institute of Medicine, Warsaw, Poland
| | - Damian Matak
- Department of Oncology with Laboratory of Molecular Oncology, Military Institute of Medicine, Warsaw, Poland
| | - Lukasz Szymanski
- Department of Oncology with Laboratory of Molecular Oncology, Military Institute of Medicine, Warsaw, Poland
| | - Karolina H Czarnecka
- Department of Molecular Bases of Medicine, Medical University of Lodz, Lodz, Poland
| | - Slawomir Lewicki
- Department of Regenerative Medicine, Military Institute of Hygiene and Epidemiology, Warsaw, Poland
| | - Robert Zdanowski
- Department of Regenerative Medicine, Military Institute of Hygiene and Epidemiology, Warsaw, Poland
| | | | - Cezary Szczylik
- Department of Oncology with Laboratory of Molecular Oncology, Military Institute of Medicine, Warsaw, Poland
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7
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Karakas C, Biernacka A, Bui T, Sahin AA, Yi M, Akli S, Schafer J, Alexander A, Adjapong O, Hunt KK, Keyomarsi K. Cytoplasmic Cyclin E and Phospho-Cyclin-Dependent Kinase 2 Are Biomarkers of Aggressive Breast Cancer. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 186:1900-1912. [PMID: 27182644 DOI: 10.1016/j.ajpath.2016.02.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/29/2016] [Accepted: 02/29/2016] [Indexed: 12/24/2022]
Abstract
Cyclin E and its co-activator, phospho-cyclin-dependent kinase 2 (p-CDK2), regulate G1 to S phase transition and their deregulation induces oncogenesis. Immunohistochemical assessments of these proteins in cancer have been reported but were based only on their nuclear expression. However, the oncogenic forms of cyclin E (low molecular weight cyclin E or LMW-E) in complex with CDK2 are preferentially mislocalized to the cytoplasm. Here, we used separate nuclear and cytoplasmic scoring systems for both cyclin E and p-CDK2 expression to demonstrate altered cellular accumulation of these proteins using immunohistochemical analysis. We examined the specificity of different cyclin E antibodies and evaluated their concordance between immunohistochemical and Western blot analyses in a panel of 14 breast cell lines. Nuclear versus cytoplasmic staining of cyclin E readily differentiated full-length from LMW-E, respectively. We also evaluated the expression of cyclin E and p-CDK2 in 1676 breast carcinoma patients by immunohistochemistry. Cytoplasmic cyclin E correlated strongly with cytoplasmic p-CDK2 (P < 0.0001), high tumor grade, negative estrogen/progesterone receptor status, and human epidermal growth factor receptor 2 positivity (all P < 0.0001). In multivariable analysis, cytoplasmic cyclin E plus phosphorylated CDK2 (as one variable) predicted breast cancer recurrence-free and overall survival. These results suggest that cytoplasmic cyclin E and p-CDK2 can be readily detected with immunohistochemistry and used as clinical biomarkers for aggressive breast cancer.
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Affiliation(s)
- Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
| | - Anna Biernacka
- Department of Pathology, Baylor College of Medicine, Houston, Texas
| | - Tuyen Bui
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Aysegul A Sahin
- Department of Pathology and Immunology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Min Yi
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Said Akli
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jolie Schafer
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Angela Alexander
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Opoku Adjapong
- Department of Pathology and Immunology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kelly K Hunt
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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8
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Lucenay KS, Doostan I, Karakas C, Bui T, Ding Z, Mills GB, Hunt KK, Keyomarsi K. Cyclin E Associates with the Lipogenic Enzyme ATP-Citrate Lyase to Enable Malignant Growth of Breast Cancer Cells. Cancer Res 2016; 76:2406-18. [PMID: 26928812 DOI: 10.1158/0008-5472.can-15-1646] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 02/16/2016] [Indexed: 12/19/2022]
Abstract
Cyclin E is altered in nearly a third of invasive breast cancers where it is a powerful independent predictor of survival in women with stage I-III disease. Full-length cyclin E is posttranslationally cleaved into low molecular weight (LMW-E) isoforms, which are tumor-specific and accumulate in the cytoplasm because they lack a nuclear localization sequence. We hypothesized that aberrant localization of cytosolic LMW-E isoforms alters target binding and activation ultimately contributing to LMW-E-induced tumorigenicity. To address this hypothesis, we used a retrovirus-based protein complementation assay to find LMW-E binding proteins in breast cancer, identifying ATP-citrate lyase (ACLY), an enzyme in the de novo lipogenesis pathway, as a novel LMW-E-interacting protein in the cytoplasm. LMW-E upregulated ACLY enzymatic activity, subsequently increasing lipid droplet formation, thereby providing cells with essential building blocks to support growth. ACLY was also required for LMW-E-mediated transformation, migration, and invasion of breast cancer cells in vitro along with tumor growth in vivo In clinical specimens of breast cancer, the absence of LMW-E and low expression of adipophilin (PLIN2), a marker of lipid droplet formation, associated with favorable prognosis, whereas overexpression of both proteins correlated with a markedly worse prognosis. Taken together, our findings establish a novel relationship between LMW-E isoforms of cyclin E and aberrant lipid metabolism pathways in breast cancer tumorigenesis, warranting further investigation in additional malignancies exhibiting their expression. Cancer Res; 76(8); 2406-18. ©2016 AACR.
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Affiliation(s)
- Kimberly S Lucenay
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Iman Doostan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Tuyen Bui
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zhiyong Ding
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gordon B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kelly K Hunt
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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9
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Krabbe LM, Margulis V, Lotan Y. Prognostic Role of Cell Cycle and Proliferative Markers in Clear Cell Renal Cell Carcinoma. Urol Clin North Am 2016; 43:105-18. [DOI: 10.1016/j.ucl.2015.08.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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10
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Huang G, Li L, Zhou W. USP14 activation promotes tumor progression in hepatocellular carcinoma. Oncol Rep 2015; 34:2917-24. [PMID: 26397990 DOI: 10.3892/or.2015.4296] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 07/06/2015] [Indexed: 11/06/2022] Open
Abstract
To elucidate the molecular mechanisms underlying the pathogenesis and treatment of human primary hepatocellular carcinoma (HCC), it is important to explore novel HCC-associated genes. In the present study, we examined the expression of ubiquitin-specific peptidase 14 (USP14) in patients with HCC using quantitative PCR and immunohistochemical techniques. The expression of USP14 in tumor tissues of patients with HCC was significantly higher than that in adjacent non-cancerous and normal liver tissues. It was also determined whether the expression profile of USP14 was associated with the clinical characteristics of HCC. Increased USP14 expression was associated with some clinicopatho-logical variables, such as advancing tumor stage. A Kaplan-Meier curve analysis demonstrated that patients with HCC having a high USP14 expression had a significantly poorer prognosis after surgery than patients with lower USP14 expression levels. Knockdown of USP14 with the lentiviral vector delivery of shRNA in human hepatocarcinoma SMMC7721 cells suppressed cell proliferation, altered the cell cycle and induced cell apoptosis. Additionally, the Wnt/β-catenin pathway was activated in HCC patients with USP14 overexpression. These findings strongly suggested that USP14 activation plays an oncogenic role in promoting tumor progression in HCC. Thus, our findings suggested that USP14 is involved in the progression of HCC and may be a useful therapeutic target in HCC. These findings likely reflect the key role that USP14 plays in the pathogenesis of HCC. Therefore, the identification of USP14 and USP14-driven genes may promote the investigation of its functional role to develop more effective therapies for HCC, especially advanced HCC.
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Affiliation(s)
- Gang Huang
- Department of Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, P.R. China
| | - Limei Li
- Clinical and Translational Research Center Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Shanghai, P.R. China
| | - Weiping Zhou
- Department of Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, P.R. China
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11
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Tian W, Cui F, Esteban MA. E2F1 in renal cancer: Mr Hyde disguised as Dr Jekyll? J Pathol 2013; 231:143-6. [DOI: 10.1002/path.4238] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 07/05/2013] [Accepted: 07/12/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Weihua Tian
- Key Laboratory of Regenerative Biology, Chinese Academy of Sciences, and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine; Guangzhou Institutes of Biomedicine and Health; Guangzhou China
| | - Fenggong Cui
- Key Laboratory of Regenerative Biology, Chinese Academy of Sciences, and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine; Guangzhou Institutes of Biomedicine and Health; Guangzhou China
| | - Miguel A Esteban
- Key Laboratory of Regenerative Biology, Chinese Academy of Sciences, and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine; Guangzhou Institutes of Biomedicine and Health; Guangzhou China
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12
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Bagheri-Yarmand R, Biernacka A, Hunt KK, Keyomarsi K. Low molecular weight cyclin E overexpression shortens mitosis, leading to chromosome missegregation and centrosome amplification. Cancer Res 2010; 70:5074-84. [PMID: 20530685 DOI: 10.1158/0008-5472.can-09-4094] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Overexpression of the low molecular weight isoforms (LMW-E) of cyclin E induces chromosome instability; however, the degree to which these tumor-specific forms cause genomic instability differs from that of full-length cyclin E (EL), and the underlying mechanism(s) has yet to be elucidated. Here, we show that EL and LMW-E overexpression impairs the G(2)-M transition differently and leads to different degrees of chromosome instability in a breast cancer model system. First, the most significant difference is that EL overexpression prolongs cell cycle arrest in prometaphase, whereas LMW-E overexpression reduces the length of mitosis and accelerates mitotic exit. Second, LMW-E-overexpressing cells are binucleated or multinucleated with amplified centrosomes, whereas EL-overexpressing cells have the normal complement of centrosomes. Third, LMW-E overexpression causes mitotic defects, chromosome missegregation during metaphase, and anaphase bridges during anaphase, most of which are not detected on EL induction. LMW-E induces additional mitotic defects in cooperation with p53 loss in both normal and tumor cells. Fourth, LMW-E-overexpressing cells fail to arrest in the presence of nocodazole. Collectively, the mitotic defects mediated by LMW-E induction led to failed cytokinesis and polyploidy, suggesting that LMW-E expression primes cells to accrue chromosomal instability by shortening the length of mitosis. Lastly, LMW-E expression in human breast cancer tissues correlates with centrosome amplification and higher nuclear grade. These results suggest that LMW-E overexpression leads to higher centrosome numbers in breast cancer, which is a prerequisite for genomic instability.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Blotting, Western
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/genetics
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Lobular/genetics
- Carcinoma, Lobular/metabolism
- Carcinoma, Lobular/pathology
- Cell Line, Tumor
- Centrosome/pathology
- Chromosomal Instability
- Cyclin E/genetics
- Cyclin E/metabolism
- Cytoplasm/metabolism
- Female
- Fluorescent Antibody Technique
- Humans
- Immunoenzyme Techniques
- Middle Aged
- Mitosis/genetics
- Molecular Weight
- Oncogene Proteins/genetics
- Oncogene Proteins/metabolism
- Ploidies
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Affiliation(s)
- Rozita Bagheri-Yarmand
- Department of Experimental Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, USA.
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Yoshida S, Furukawa N, Haruta S, Tanase Y, Kanayama S, Noguchi T, Sakata M, Yamada Y, Oi H, Kobayashi H. Theoretical model of treatment strategies for clear cell carcinoma of the ovary: focus on perspectives. Cancer Treat Rev 2009; 35:608-15. [PMID: 19665848 DOI: 10.1016/j.ctrv.2009.07.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Revised: 07/02/2009] [Accepted: 07/08/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Among epithelial ovarian cancer (EOC), clear cell carcinomas (CCC) differ from the other histologic types with respect to their clinical characteristics, carcinogenesis and prognosis. The aim of this review is to summarize the current knowledge and future perspective on the new therapeutic targets and treatment strategies for CCC. MATERIALS AND METHODS The present article reviews the English language literature for preclinical and clinical trials and promising molecular targets on CCC of the ovary, based on the gene expression profiling studies. RESULTS Here, we show that (1) the expression of the genes involved in transcription, signaling, cell cycle, adhesion, matrix, proteinase, and detoxification was greatly increased in the CCC carcinogenesis; (2) upregulation of hepatocyte nuclear factor-1beta (HNF-1beta) and Polo-like kinase (PLK)-Early mitotic inhibitor-1 (Emi1) as well as their downstream targets are specifically found in most CCC. The promising molecular targeting approach will emerge in the context of HNF-1beta and PLK-Emi1 biology; and 3) several significant common pathways observed in CCC of the ovary overlap the datasets identified in CCC of the kidney. To improve the outcome in CCC therapy, we must learn various adaptive treatment strategies for renal CCC, although it is not supported by any preliminary clinical data. CONCLUSION The inhibitors that target HNF-1beta and PLK-Emi1 and their downstream signaling molecules would be evaluated. In addition, the therapy currently used in renal CCC should be considered as an alternative for the present treatments or an attractive therapeutic option for ovarian CCC. The challenges accompanying the recent advance are described in this review article.
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Affiliation(s)
- Shozo Yoshida
- Department of Obstetrics and Gynecology, Nara Medical University, Nara, Japan
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