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Ingebriktsen LM, Humlevik ROC, Svanøe AA, Sæle AKM, Winge I, Toska K, Kalvenes MB, Davidsen B, Heie A, Knutsvik G, Askeland C, Stefansson IM, Hoivik EA, Akslen LA, Wik E. Elevated expression of Aurora-A/AURKA in breast cancer associates with younger age and aggressive features. Breast Cancer Res 2024; 26:126. [PMID: 39198859 PMCID: PMC11360479 DOI: 10.1186/s13058-024-01882-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 08/16/2024] [Indexed: 09/01/2024] Open
Abstract
BACKGROUND AND OBJECTIVE Aurora kinase A (AURKA) is reported to be overexpressed in breast cancer. In addition to its role in regulating cell cycle and mitosis, studies have reported AURKA involvements in oncogenic signaling in suppressing BRCA1 and BRCA2. We aimed to characterize AURKA protein and mRNA expression in a breast cancer cohort of the young, investigating its relation to clinico-pathologic features and survival, and exploring age-related AURKA-associated biological processes. METHODS Aurora kinase A immunohistochemical staining was performed on tissue microarrays of primary tumors from an in-house breast cancer cohort (n = 355) with information on clinico-pathologic data, molecular markers, and long and complete follow-up. A subset of the in-house cohort (n = 127) was studied by the NanoString Breast Cancer 360 expression panel for exploration of mRNA expression. METABRIC cohorts < 50 years at breast cancer diagnosis (n = 368) were investigated for differentially expressed genes and enriched gene sets in AURKA mRNA high tumors stratified by age. Differentially expressed genes and gene sets were investigated using network analyses and g:Profiler. RESULTS High Aurora kinase A protein expression associated with aggressive clinico-pathologic features, a basal-like subtype, and high risk of recurrence score. These patterns were confirmed using mRNA data. High AURKA gene expression demonstrated independent prognostic value when adjusted for traditional clinico-pathologic features and molecular subtypes. Notably, high AURKA expression significantly associated with reduced disease-specific survival within patients below 50 years, also within the luminal A subtype. Tumors of high AURKA expression showed gene expression patterns reflecting increased DNA damage activation and higher BRCAness score. CONCLUSIONS Our findings indicate higher AURKA expression in young breast cancer, and associations between high Aurora-A/AURKA and aggressive tumor features, including higher tumor cell proliferation, and shorter survival, in the young. Our findings point to AURKA as a marker for increased DNA damage and DNA repair deficiency and suggest AURKA as a biomarker of clinical relevance in young breast cancer.
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Grants
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- F-12143 Helse Vest Research Fund
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- 223250 University of Bergen, Research Council of Norway, Center of Excellence funding scheme
- University of Bergen (incl Haukeland University Hospital)
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Affiliation(s)
- L M Ingebriktsen
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
| | - R O C Humlevik
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
| | - A A Svanøe
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
| | - A K M Sæle
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
| | - I Winge
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
| | - K Toska
- Section for Cancer Genomics, Haukeland University Hospital, Bergen, Norway
| | - M B Kalvenes
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
| | - B Davidsen
- Department of Surgery, Section for Breast and Endocrine Surgery, Haukeland University Hospital, Bergen, Norway
| | - A Heie
- Department of Surgery, Section for Breast and Endocrine Surgery, Haukeland University Hospital, Bergen, Norway
| | - G Knutsvik
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - C Askeland
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - I M Stefansson
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - E A Hoivik
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - L A Akslen
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - E Wik
- Department of Clinical Medicine, Section for Pathology, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway.
- Department of Pathology, Haukeland University Hospital, Bergen, Norway.
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Winter P, Fuksiewicz M, Jagiello-Gruszfeld A, Nowecki Z, Kotowicz B. Expression of Soluble Form of Aurora A as a Predictive Factor for Neoadjuvant Therapy in Breast Cancer Patients: A Single-Center Pilot Study. Cancers (Basel) 2023; 15:5446. [PMID: 38001709 PMCID: PMC10670120 DOI: 10.3390/cancers15225446] [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: 10/16/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
PURPOSE To search for new predictive breast cancer biomarkers. We analyzed the serum concentrations of biomarkers involved in carcinogenesis, which can also be targeted by therapy. METHODS In a single-center prospective study, the serum levels of Aurora A, thymidine kinase 1, and human epidermal growth factor receptor type 3 (HER3) were determined in 119 women with BC before neoadjuvant treatment using ELISA kits. RESULTS The following clinical data were analyzed: age; TNM; the expression of ER, PGR, HER2, and Ki67; histological grade (G); and the response to neoadjuvant treatment (NAT) in the residual tumor burden classification (RCB). A complete pathological response (pCR) was achieved after NAT in 41 patients (34%). The highest proportion of the patients with a confirmed pCR was found for triple negative breast cancer (TNBC) (62.5%); non-luminal HER2-positive (52.6%) cancer subtypes (p = 0.0003); and in the G3 group (50%; p = 0.0078). The patients with higher levels of Aurora A were more likely to achieve pCR (p = 0.039). In the multivariate analysis, the serum Aurora A levels ≥ 4.75 ng/mL correlated with a higher rate of pCR (OR: 3.5; 95% CI: 1.2-10.1; p = 0.023). CONCLUSIONS We showed that in a biologically heterogeneous group of BC patients, the pretreatment serum Aurora A levels were of significant value in predicting the response to NAT.
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Affiliation(s)
- Pawel Winter
- Breast Cancer and Reconstructive Surgery Department, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (P.W.); (A.J.-G.); (Z.N.)
| | - Malgorzata Fuksiewicz
- Cancer Biomarker and Cytokines Laboratory Unit, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland;
| | - Agnieszka Jagiello-Gruszfeld
- Breast Cancer and Reconstructive Surgery Department, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (P.W.); (A.J.-G.); (Z.N.)
| | - Zbigniew Nowecki
- Breast Cancer and Reconstructive Surgery Department, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (P.W.); (A.J.-G.); (Z.N.)
| | - Beata Kotowicz
- Cancer Biomarker and Cytokines Laboratory Unit, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland;
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Richard F, De Schepper M, Maetens M, Leduc S, Isnaldi E, Geukens T, Van Baelen K, Nguyen HL, Vermeulen P, Van Laere S, Bertucci F, Ueno N, Dirix L, Floris G, Biganzoli E, Desmedt C. Comparison of the genomic alterations present in tumor samples from patients with metastatic inflammatory versus non-inflammatory breast cancer reveals AURKA as a potential treatment target. Breast 2023:S0960-9776(23)00010-3. [PMID: 36717329 DOI: 10.1016/j.breast.2023.01.010] [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: 03/11/2022] [Revised: 12/02/2022] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Inflammatory breast cancer (IBC) is a rare but aggressive subtype of breast cancer, mainly characterized using primary tumor samples. Here, using public datasets, we compared the genomic alterations in primary and metastatic samples from patients with metastatic IBC versus patients with metastatic non-IBC. We observed a higher frequency of AURKA amplification in IBC. We further showed that AURKA amplification was associated with increased AURKA mRNA expression, which we demonstrated was higher in IBC. Finally, higher protein expression of AURKA was associated with worse prognosis in patients with IBC. These findings deserve further investigation given the existence of AURKA-inhibitors.
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Affiliation(s)
- François Richard
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium
| | - Maxim De Schepper
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium
| | - Marion Maetens
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium
| | - Sophia Leduc
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium
| | - Edoardo Isnaldi
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium; Department of Internal Medicine and Medical Specialties, University of Genoa, IT-16132, Genoa, Italy
| | - Tatjana Geukens
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium
| | - Karen Van Baelen
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium
| | - Ha-Linh Nguyen
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium
| | - Peter Vermeulen
- Translational Cancer Research Unit, GZA Hospitals & CORE, MIPRO, University of Antwerp, Antwerp, Belgium; Department of Oncological Research, Oncology Center, GZA Hospitals Sint-Augustinus, Antwerp, Belgium
| | - Steven Van Laere
- Center for Oncological Research (CORE), Integrated Personalized and Precision Oncology Network (IPPON), University of Antwerp, Belgium
| | - François Bertucci
- Institut Paoli Calmettes, CRCM, INSERM U1068, CNRS UMR7258, Aix-Marseille Université, Marseille, France
| | - Naoto Ueno
- Department of Breast Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Luc Dirix
- Translational Cancer Research Unit, GZA Hospitals & CORE, MIPRO, University of Antwerp, Antwerp, Belgium; Department of Oncological Research, Oncology Center, GZA Hospitals Sint-Augustinus, Antwerp, Belgium
| | - Giuseppe Floris
- Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research and University Hospitals Leuven, KU Leuven, 3000, Leuven, Belgium
| | - Elia Biganzoli
- Unit of Medical Statistics, Biometry and Epidemiology, Department of Biomedical and Clinical Sciences (DIBIC) & DSRC, Ospedale "L. Sacco" LITA Campus, Università degli Studi di Milano, 20157, Milan, Italy
| | - Christine Desmedt
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, 3000, Leuven, Belgium.
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Yde CW. Aurora A and Mcl-1: new potential treatment targets in antiestrogen-resistant breast cancer. Mol Cell Oncol 2021; 8:998898. [PMID: 35419472 PMCID: PMC8997248 DOI: 10.1080/23723556.2014.998898] [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: 12/09/2014] [Revised: 12/11/2014] [Accepted: 12/12/2014] [Indexed: 06/14/2023]
Abstract
Antiestrogen resistance is a major clinical limitation in treatment of breast cancer. We have recently reported that Aurora A and Mcl-1 (myeloid cell leukemia 1) are potential novel treatment targets in antiestrogen-resistant breast cancer cells and that Aurora A expression is a biomarker for tamoxifen resistance in breast cancer patients. Abbreviations: Bcl-2, B-cell lymphoma 2; EGF, epidermal growth factor; ERα, estrogen receptor α; Mcl-1, myeloid cell leukemia 1; VEGF, vascular endothelial growth factor.
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Affiliation(s)
- Christina W. Yde
- Breast Cancer Group, Unit of Cell Death and Metabolism, Danish Cancer Society Research Center, Copenhagen, Denmark
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5
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MCM-2, Ki-67, and EGFR downregulated expression levels in advanced stage laryngeal squamous cell carcinoma. Sci Rep 2021; 11:14607. [PMID: 34272446 PMCID: PMC8285532 DOI: 10.1038/s41598-021-94077-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 07/06/2021] [Indexed: 12/29/2022] Open
Abstract
We present the conceptual study investigated the capacity of minichromosome maintenance-2 (MCM-2), Ki-67, and epidermal growth factor receptor (EGFR) to assess the severity and progression of laryngeal squamous cell carcinoma (LSCC) disease and to study the correlations among these markers. A total of 30 patients with LSCC with immunohistochemistry (IHC) staining for MCM-2, Ki-67 and EGFR were examined. Mean expression levels of the three markers were evaluated for comparing between early and advanced stages of LSCC. The mean MCM-2, Ki-67, and EGFR expression levels were significantly decreased in advanced-stage compared with early-stage LSCC. Pearson correlation analysis showed a statistically significant correlation between the MCM-2 and Ki-67. Regarding subgroup analyses, MCM-2, Ki-67, and EGFR showed significant differences between early- and advanced-stage LSCC with non-recurrence, while for the recurrent subgroup LSCC, only MCM-2 revealed a significant difference between early- and advanced-stage LSCC. Altogether, these results support the role for downregulation of MCM-2, Ki-67 and EGFR in advanced-stage LSCC and correlation of MCM-2 and Ki-67 expressions that would be a promising strategy to predict prognosis of LSCC including severity and progression. We contextualize our findings and advocate the position of the biological markers, especially MCM-2, as an emerging evaluation tool for LSCC disease.
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Haykal MM, Rodrigues-Ferreira S, Nahmias C. Microtubule-Associated Protein ATIP3, an Emerging Target for Personalized Medicine in Breast Cancer. Cells 2021; 10:cells10051080. [PMID: 34062782 PMCID: PMC8147298 DOI: 10.3390/cells10051080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/29/2021] [Accepted: 04/29/2021] [Indexed: 12/17/2022] Open
Abstract
Breast cancer is the leading cause of death by malignancy among women worldwide. Clinical data and molecular characteristics of breast tumors are essential to guide clinician’s therapeutic decisions. In the new era of precision medicine, that aims at personalizing the treatment for each patient, there is urgent need to identify robust companion biomarkers for new targeted therapies. This review focuses on ATIP3, a potent anti-cancer protein encoded by candidate tumor suppressor gene MTUS1, whose expression levels are markedly down-regulated in breast cancer. ATIP3 is a microtubule-associated protein identified both as a prognostic biomarker of patient survival and a predictive biomarker of breast tumors response to taxane-based chemotherapy. We present here recent studies pointing out ATIP3 as an emerging anti-cancer protein and a potential companion biomarker to be combined with future personalized therapy against ATIP3-deficient breast cancer.
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Affiliation(s)
- Maria M. Haykal
- Institut Gustave Roussy, Université Paris-Saclay, Inserm U981, Biomarqueurs Prédictifs et Nouvelles Stratégies Thérapeutiques en Oncologie, 94800 Villejuif, France; (M.M.H.); (S.R.-F.)
- LERMIT Laboratory, 92296 Chatenay-Malabry, France
| | - Sylvie Rodrigues-Ferreira
- Institut Gustave Roussy, Université Paris-Saclay, Inserm U981, Biomarqueurs Prédictifs et Nouvelles Stratégies Thérapeutiques en Oncologie, 94800 Villejuif, France; (M.M.H.); (S.R.-F.)
- LERMIT Laboratory, 92296 Chatenay-Malabry, France
- Inovarion, 75005 Paris, France
| | - Clara Nahmias
- Institut Gustave Roussy, Université Paris-Saclay, Inserm U981, Biomarqueurs Prédictifs et Nouvelles Stratégies Thérapeutiques en Oncologie, 94800 Villejuif, France; (M.M.H.); (S.R.-F.)
- LERMIT Laboratory, 92296 Chatenay-Malabry, France
- Correspondence:
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O’Shaughnessy J, McIntyre K, Wilks S, Ma L, Block M, Andorsky D, Danso M, Locke T, Scales A, Wang Y. Efficacy and Safety of Weekly Paclitaxel With or Without Oral Alisertib in Patients With Metastatic Breast Cancer: A Randomized Clinical Trial. JAMA Netw Open 2021; 4:e214103. [PMID: 33877311 PMCID: PMC8058641 DOI: 10.1001/jamanetworkopen.2021.4103] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
IMPORTANCE Elevated expression of AURKA adversely affects prognosis in estrogen receptor (ER)-positive and ERBB2 (formerly HER2)-negative and triple-negative breast cancer and is associated with resistance to taxanes. OBJECTIVE To compare paclitaxel alone vs paclitaxel plus alisertib in patients with ER-positive and ERBB2-negative or triple-negative metastatic breast cancer (MBC). DESIGN, SETTING, AND PARTICIPANTS In this randomized clinical trial conducted with the US Oncology Network, participants were randomized to intravenous (IV) paclitaxel 90 mg/m2 on days 1, 8, and 15 on a 28-day cycle or IV paclitaxel 60 mg/m2 on days 1, 8, and 15 plus oral alisertib 40 mg twice daily on days 1 to 3, 8 to 10, and 15 to 17 on a 28-day cycle. Stratification was by prior neo or adjuvant taxane and by line of metastatic therapy. Eligible patients were those who had undergone endocrine therapy, 0 or 1 prior chemotherapy regimens for MBC, more than 12 months treatment-free interval from neo or adjuvant taxane therapy, and with measurable or evaluable lytic bone-disease. Data were analyzed from March 2019 through May 2019. MAIN OUTCOMES AND MEASURES The main outcome was progression-free survival (PFS) with secondary end points of overall survival (OS), overall response rate, clinical benefit rate, safety, and analysis of archival breast cancer tissues for molecular markers associated with benefit from alisertib. RESULTS A total of 174 patients were randomized, including with 86 randomized to paclitaxel and 88 patients randomized to paclitaxel plus alisertib, and 169 patients received study treatment. The final cohort included 139 patients with a median (interquartile range [IQR]) age of 62 (27-84) years with ER-positive and ERBB2-negative MBC, with 70 randomized to paclitaxel and 69 randomized to paclitaxel plus alisertib. The TNBC cohort closed with only 35 patients enrolled due to slow accrual and were not included in efficacy analyses. The median (IQR) follow-up was 22 (10.6-25.1) months, and median (IQR) PFS was 10.2 (3.8-15.7) months with paclitaxel plus alisertib vs 7.1 (3.8-10.6) months with paclitaxel alone (HR, 0.56; 95% CI, 0.37-0.84; P = .005). Median (IQR) OS was 26.3 (12.4-37.2) months for patients who received paclitaxel plus alisertib vs 25.1 (11.0-31.4) months for paclitaxel alone (HR, 0.89; 95% CI, 0.58-1.38; P = .61). Grade 3 or 4 adverse events occurred in 56 patients (84.8%) receiving paclitaxel plus alisertib vs 34 patients (48.6%) receiving paclitaxel alone. The main grade 3 or 4 adverse events with paclitaxel plus alisertib vs paclitaxel alone were neutropenia (50 patients [59.5%] vs 14 patients [16.4%]), anemia (8 patients [9.5%] vs 1 patient [1.2%]), diarrhea (9 patients [10.7%] vs 0 patients), and stomatitis or oral mucositis (13 patients [15.5%] vs 0 patients). One patient receiving paclitaxel plus alisertib died of sepsis. CONCLUSIONS AND RELEVANCE This randomized clinical trial found that the addition of oral alisertib to a reduced dose of weekly paclitaxel significantly improved PFS compared with paclitaxel alone, and toxic effects with paclitaxel plus alisertib were manageable with alisertib dose reduction. These data support further evaluation of alisertib in patients with ER-positive, ERBB2-negative MBC. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02187991.
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Affiliation(s)
- Joyce O’Shaughnessy
- Baylor University Medical Center, Dallas, Texas
- Texas Oncology, Dallas
- US Oncology, Houston, Texas
| | | | - Sharon Wilks
- Texas Oncology, Dallas
- US Oncology, Houston, Texas
| | - Ling Ma
- US Oncology, Houston, Texas
- Rocky Mountain Cancer Centers, Lakewood, Colorado
| | - Margaret Block
- US Oncology, Houston, Texas
- Nebraska Cancer Specialists, Omaha
| | - David Andorsky
- US Oncology, Houston, Texas
- Rocky Mountain Cancer Centers, Boulder, Colorado
| | - Michael Danso
- US Oncology, Houston, Texas
- Virginia Oncology Associates, Norfolk
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9
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Xu Y, Wang C, Chen X, Li Y, Bian W, Yao C. San Huang Decoction Targets Aurora Kinase A to Inhibit Tumor Angiogenesis in Breast Cancer. Integr Cancer Ther 2020; 19:1534735420983463. [PMID: 33349071 PMCID: PMC7758657 DOI: 10.1177/1534735420983463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
San Huang Decoction (SHD), a Chinese herb formula, has been popularly prescribed in the clinical treatment of patients suffering from breast cancer. The aim of this study was to explore the anti-angiogenic effects of SHD in breast cancer and explain the underlying mechanism. Transwell and Matrigel assays showed that SHD reduced human umbilical vein endothelial cell migration and tubule formation and ELISA and qRT-PCR assays demonstrated its mediation of vascular endothelial growth factor (VEGF) expression. siRNA silencing of aurora kinase A (AURKA) produced results similar to those obtained by inhibition of AURKA with SHD. In addition, a chorioallantoic membrane assay was carried out to directly examine the effect of SHD on breast cancer anti-angiogenesis and immunofluorescence and immunohistochemical staining analysis showed that SHD reduced the expression of CD31, AURKA, and VEGF in a xenograft model. Furthermore, SHD regulated extracellular signal-regulated kinase expression in breast cancer cells, which was examined by western blotting. In conclusion, our findings indicated that SHD treatment mimicked the decrease in tumor neovascularization in breast cancer cells after the siRNA-mediated knockdown of AURKA. Thus, SHD may inhibit tumor angiogenesis in breast cancer by targeting AURKA and downregulating the ERK signaling pathway.
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Affiliation(s)
- Yanlei Xu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Liyang Branch of Jiangsu Province Hospital of Chinese Medicine, Changzhou, China
| | - Cong Wang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Xiyan Chen
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Yongfei Li
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Weihe Bian
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Chang Yao
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Chang Yao, Affiliated Hospital of Nanjing University of Chinese Medicine, Han Zhong Road 155, Nanjing, Jiangsu 210029, China. The First Clinical School of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China.
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Fadaka AO, Sibuyi NRS, Madiehe AM, Meyer M. MicroRNA-based regulation of Aurora A kinase in breast cancer. Oncotarget 2020; 11:4306-4324. [PMID: 33245732 PMCID: PMC7679040 DOI: 10.18632/oncotarget.27811] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023] Open
Abstract
The involvement of non-coding RNAs (ncRNAs) in cellular physiology and disease pathogenesis is becoming increasingly relevant in recent years specifically in cancer research. Breast cancer (BC) has become a health concern and accounts for most of the cancer-related incidences and mortalities reported amongst females. In spite of the presence of promising tools for BC therapy, the mortality rate of metastatic BC cases is still high. Therefore, the genomic exploration of the BC subtype and the use of ncRNAs for possible regulation is pivotal. The expression and prognostic values of AURKA gene were assessed by Oncomine, GEPIA, KM-plotter, and bc-GenExMiner v4.4, respectively. Associated proteins and functional enrichment were evaluated by Cytoscape and DAVID databases. Additionally, molecular docking approach was employed to investigate the regulatory role of hsa-miR-32-3p assisted argonaute (AGO) protein of AURKA gene in BC. AURKA gene was highly expressed in patients with BC relative to normal counterpart and significantly correlated with poor survival. The docking result suggested that AURKA could be regulated by hsa-miR-32-3p as confirmed by the reported binding energy and specific interactions. The study gives some insights into role of AURKA and its regulation by microRNAs through AGO protein. It also provides exciting opportunities for cancer therapeutic intervention.
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Affiliation(s)
- Adewale Oluwaseun Fadaka
- Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Bellville, South Africa
| | - Nicole Remaliah Samantha Sibuyi
- Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Bellville, South Africa
| | - Abram Madimabe Madiehe
- Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Bellville, South Africa.,Nanobiotechnology Research Group, Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Bellville, South Africa
| | - Mervin Meyer
- Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Bellville, South Africa
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Apocrine Variant of Pleomorphic Lobular Carcinoma In Situ: Further Clinical, Histopathologic, Immunohistochemical, and Molecular Characterization of an Emerging Entity. Am J Surg Pathol 2020; 44:1092-1103. [PMID: 32317606 DOI: 10.1097/pas.0000000000001493] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
To date, the apocrine variant of lobular carcinoma in situ (AP-LCIS) has been cursorily described as a subtype of lobular carcinoma in situ (LCIS). We retrospectively reviewed 34 cases of AP-LCIS (including 23 associated with invasive lobular carcinoma) to fully characterize it. AP-LCIS typically presented with screen-detected calcifications in older women (mean age: 65 y) and was characterized by distended terminal duct lobular units with relatively large "pleomorphic" cells, central necrosis, and calcifications. AP-LCIS cells exhibited abundant eosinophilic occasionally granular cytoplasm, hyperchromatic nuclei, and prominent nucleoli. Synchronous classic and/or florid LCIS was identified in 24/34 (70%) AP-LCIS, and in 9/11 (82%) pure AP-LCIS. Most (68%) cases of AP-LCIS were estrogen receptor-positive (50% strongly), 35% were progesterone receptor-positive, 26% were human epidermal growth factor 2-positive, 18% demonstrated high-proliferation rate (Ki67: >15%), and 90% were androgen receptor-positive. Aurora kinase A, immunoreactive in 38% of AP-LCIS cases, was not significantly associated with recurrence, development of invasion, or nodal positivity (P>0.05). Compared with conventional (nonapocrine) pleomorphic lobular carcinoma in situ (P-LCIS), aurora kinase A was expressed in a significantly greater proportion of P-LCIS (100%). AP-LCIS and P-LCIS did not otherwise differ in clinicopathologic features. Next-generation sequencing utilizing the Oncomine Comprehensive Panel v2, performed on 27 AP-LCIS cases, showed no specific molecular findings. In a mean follow-up of 57 months, 2 (of 11, 18%) pure AP-LCIS cases recurred (2 both in situ and invasive) and none metastasized or proved fatal. AP-LCIS should be regarded as another high-grade LCIS similar to P-LCIS in many respects, and pending additional studies should be managed similarly.
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Tőkés T, Tőkés AM, Szentmártoni G, Kiszner G, Mühl D, Molnár BÁ, Kulka J, Krenács T, Dank M. Prognostic and Clinicopathological Correlations of Cell Cycle Marker Expressions before and after the Primary Systemic Therapy of Breast Cancer. Pathol Oncol Res 2020; 26:1499-1510. [PMID: 31446607 PMCID: PMC7297700 DOI: 10.1007/s12253-019-00726-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/14/2019] [Indexed: 12/14/2022]
Abstract
We aimed to analyze the expression of cell-cycle regulation markers - minichromosome maintenance protein 2 (MCM2), Ki-67, Cyclin-A and phosphohistone-H3 (PHH3) - in pre-treatment core-biopsy samples of breast carcinomas in correlation with known predictive and prognostic factors. Totally 52 core biopsy samples obtained prior to neoadjuvant therapy were analyzed. Immunohistochemistry was performed to analyze the expression of MCM2, Ki-67, Cyclin A and PHH3, which were correlated with the following clinicopathological parameters: clinical TNM, tumor grade, biological subtype, the presence of tumor infiltrating lymphocytes (TIL), pathological tumor response rate to the neoadjuvant therapy and patient survival. All investigated markers showed higher expression in high grade and in triple negative tumors (p < 0.01 and p < 0.05, respectively). Hormone receptor negative tumors showed significantly higher expression of Ki-67 (p < 0.01), MCM2 (p < 0.01) and Cyclin A (p < 0.01) than hormone receptor positive ones. Tumors with increased TIL showed significantly higher Ki-67 expression (p = 0.04). Pattern analysis suggested that novel cell-cycle marker-based subgrouping reveals predictive and prognostic potential. Tumors with high MCM2, Cyclin A or PHH3 expression showed significantly higher rate of pathological complete remission. Tumors with early relapse (progression-free survival ≤2 years) and shortened overall survival also show a higher rate of proliferation. Our cell cycle marker (Ki-67, MCM2, Cyclin A, PHH3) based testing could identify tumors with worse prognosis, but with a favorable response to primary systemic therapy. The pattern of cell-cycle activity could also be useful for predicting early relapse, but our findings need to be further substantiated in larger patient cohorts.
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Affiliation(s)
- Tímea Tőkés
- Oncology Center, Semmelweis University, Tömő utca 25-29, 4th floor, Budapest, H-1083, Hungary.
| | - Anna-Mária Tőkés
- 2nd Department of Pathology, Semmelweis University, Üllői út 93, Budapest, H-1091, Hungary
| | - Gyöngyvér Szentmártoni
- Oncology Center, Semmelweis University, Tömő utca 25-29, 4th floor, Budapest, H-1083, Hungary
| | - Gergő Kiszner
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, H-1085, Hungary
| | - Dorottya Mühl
- Oncology Center, Semmelweis University, Tömő utca 25-29, 4th floor, Budapest, H-1083, Hungary
| | - Béla Ákos Molnár
- 1st Department of Surgery, Semmelweis University, Üllői út 78/A, Budapest, H-1083, Hungary
| | - Janina Kulka
- 2nd Department of Pathology, Semmelweis University, Üllői út 93, Budapest, H-1091, Hungary
| | - Tibor Krenács
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, H-1085, Hungary
| | - Magdolna Dank
- Oncology Center, Semmelweis University, Tömő utca 25-29, 4th floor, Budapest, H-1083, Hungary
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Liu X, Zhang Y, Wu S, Xu M, Shen Y, Yu M, Fan J, Wei S, Xu C, Huang L, Zhao H, Li X, Ye X. Palmatine induces G2/M phase arrest and mitochondrial-associated pathway apoptosis in colon cancer cells by targeting AURKA. Biochem Pharmacol 2020; 175:113933. [PMID: 32224138 DOI: 10.1016/j.bcp.2020.113933] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 03/20/2020] [Indexed: 12/11/2022]
Abstract
Studies have shown that palmatine (PAL) has anti-cancer effects. However, the activity and potential mechanisms of PAL against colorectal cancer remain elusive. The results showed that PAL significantly inhibited the proliferation of colon cancer cells in vitro and in vivo without significant effect on non-tumorigenic colon cells. Target prediction and clinical sample database analysis suggested that PAL may contribute to colon cancer cells phase arrest and apoptosis by targeting aurora kinase A (AURKA). Inhibition and overexpression of AURKA proved that PAL induces G2/M phase arrest and apoptosis in colon cancer cells by targeting AURKA. Moreover, PAL promoted intracellular Reactive oxygen species (ROS) production and decreased mitochondrial membrane potential (ΔΨm). PAL reduced the levels of AURKA, Bcl-xl and Bcl2 proteins, and promoted the expression of pro-apoptotic proteins P53, P73, Caspase3 and Caspase9, as well as the increase of cytochrome c (cyt. c) in cell lysates in vitro and in vivo. Together, our study confirmed that PAL induced G2/M phase arrest and mitochondrial-associated pathway apoptosis in colon cancer cells by targeting AURKA. PAL may provide a novel solution for the treatment of colon cancer by serving as a new AURKA inhibitor.
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Affiliation(s)
- Xiaojiang Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Yaru Zhang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Siqi Wu
- Chongqing Productivity Promotion Center of Chinese Traditional Medicine, Modernization, School of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Minmin Xu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Youfeng Shen
- Chongqing Productivity Promotion Center of Chinese Traditional Medicine, Modernization, School of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Min Yu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jinhua Fan
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Sijia Wei
- Chongqing Productivity Promotion Center of Chinese Traditional Medicine, Modernization, School of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Chaohang Xu
- Chongqing Productivity Promotion Center of Chinese Traditional Medicine, Modernization, School of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Lu Huang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Han Zhao
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Xuegang Li
- Chongqing Productivity Promotion Center of Chinese Traditional Medicine, Modernization, School of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - Xiaoli Ye
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China.
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MCMs in Cancer: Prognostic Potential and Mechanisms. Anal Cell Pathol (Amst) 2020; 2020:3750294. [PMID: 32089988 PMCID: PMC7023756 DOI: 10.1155/2020/3750294] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/25/2020] [Indexed: 12/17/2022] Open
Abstract
Enabling replicative immortality and uncontrolled cell cycle are hallmarks of cancer cells. Minichromosome maintenance proteins (MCMs) exhibit helicase activity in replication initiation and play vital roles in controlling replication times within a cell cycle. Overexpressed MCMs are detected in various cancerous tissues and cancer cell lines. Previous studies have proposed MCMs as promising proliferation markers in cancers, while the prognostic values remain controversial and the underlying mechanisms remain unascertained. This review provides an overview of the significant findings regarding the cellular and tumorigenic functions of the MCM family. Besides, current evidence of the prognostic roles of MCMs is retrospectively reviewed. This work also offers insight into the mechanisms of MCMs prompting carcinogenesis and adverse prognosis, providing information for future research. Finally, MCMs in liver cancer are specifically discussed, and future perspectives are provided.
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15
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Yan P, Tang L, Liu L, Tu G. Identification of candidate RNA signatures in triple-negative breast cancer by the construction of a competing endogenous RNA network with integrative analyses of Gene Expression Omnibus and The Cancer Genome Atlas data. Oncol Lett 2020; 19:1915-1927. [PMID: 32194687 PMCID: PMC7039180 DOI: 10.3892/ol.2020.11292] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 11/21/2019] [Indexed: 12/16/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a subtype of breast cancer that is characterized by aggressive and metastatic clinical characteristics and generally leads to earlier distant recurrence and poorer prognosis than other molecular subtypes. Accumulating evidence has demonstrated that long non-coding RNAs (lncRNAs) serve a crucial role in a wide variety of biological processes by interacting with microRNAs (miRNAs) as competing endogenous RNAs (ceRNAs) and, thus, affect the expression of target genes in multiple types of cancer. Seven datasets from the Gene Expression Omnibus (GEO) database, including 444 tumor and 88 healthy tissue samples, were utilized to investigate the underlying mechanisms of TNBC and identify prognostic biomarkers. Differentially expressed genes (DEGs) were further validated in The Cancer Genome Atlas database and the associations between their expression levels and clinical information were analyzed to identify prognostic values. A potential lncRNA-miRNA-mRNA ceRNA network was also constructed. Finally, 69 mRNAs from the integrated Gene Expression Omnibus datasets were identified as DEGs using the robust rank aggregation method with |log2FC|>1 and adjusted P<0.01 set as the significance cut-off levels. In addition, 29 lncRNAs, 21 miRNAs and 27 mRNAs were included in the construction of the ceRNA network. The present study elucidated the mechanisms underlying the progression of TNBC and identified novel prognostic biomarkers for TNBC.
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Affiliation(s)
- Ping Yan
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Lingfeng Tang
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Li Liu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Gang Tu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, P.R. China
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16
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Issac MSM, Yousef E, Tahir MR, Gaboury LA. MCM2, MCM4, and MCM6 in Breast Cancer: Clinical Utility in Diagnosis and Prognosis. Neoplasia 2019; 21:1015-1035. [PMID: 31476594 PMCID: PMC6726925 DOI: 10.1016/j.neo.2019.07.011] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/24/2019] [Accepted: 07/29/2019] [Indexed: 12/25/2022] Open
Abstract
Breast cancer is a heterogeneous disease comprising the estrogen receptor (ER)-positive luminal subtype which is subdivided into luminal A and luminal B and ER-negative breast cancer which includes the triple-negative subtype. This study has four aims: 1) to examine whether Minichromosome Maintenance (MCM)2, MCM4, and MCM6 can be used as markers to differentiate between luminal A and luminal B subtypes; 2) to study whether MCM2, MCM4, and MCM6 are highly expressed in triple-negative breast cancer, as there is an urgent need to search for surrogate markers in this aggressive subtype, for drug development purposes; 3) to compare the prognostic values of these markers in predicting relapse-free survival; and 4) to compare the three approaches used for scoring the protein expression of these markers by immunohistochemistry (IHC). MCM2, MCM4, MCM6, and MKI67 mRNA expression was first studied using in silico analysis of available breast cancer datasets. We next used IHC to evaluate their protein expression on tissue microarrays using three scoring methods. MCM2, MCM4, and MCM6 can help in distinction between luminal A and luminal B whose therapeutic management and clinical outcomes are different. MCM2, MCM4, MCM6, and Ki-67 are highly expressed in breast cancer of high histological grades that comprise clinically aggressive tumors such as luminal B, HER2-positive, and triple-negative subtypes. Low transcript expression of these markers is associated with increased probability of relapse-free survival. A positive relationship exists among the three scoring methods of each of the four markers. An independent validation cohort is needed to confirm their clinical utility.
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Affiliation(s)
- Marianne Samir Makboul Issac
- Institute for Research in Immunology and Cancer (IRIC), Université de Montréal, Montréal, Quebec, Canada H3T 1J4
| | - Einas Yousef
- Institute for Research in Immunology and Cancer (IRIC), Université de Montréal, Montréal, Quebec, Canada H3T 1J4
| | - Muhammad Ramzan Tahir
- The University of Montreal Hospital Research Centre, Montréal, Quebec, Canada H2X 0A9
| | - Louis A Gaboury
- Institute for Research in Immunology and Cancer (IRIC), Université de Montréal, Montréal, Quebec, Canada H3T 1J4; Department of Pathology and Cell Biology, Faculty of Medicine, Université de Montréal, Montréal, Quebec, Canada H3T 1J4.
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17
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Xiao B, Hang J, Lei T, He Y, Kuang Z, Wang L, Chen L, He J, Zhang W, Liao Y, Sun Z, Li L. Identification of key genes relevant to the prognosis of ER-positive and ER-negative breast cancer based on a prognostic prediction system. Mol Biol Rep 2019; 46:2111-2119. [PMID: 30888555 DOI: 10.1007/s11033-019-04663-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 01/29/2019] [Indexed: 12/24/2022]
Abstract
Few prognostic indicators with differential expression have been reported among the differing ER statuses. We aimed to screen important breast cancer prognostic genes related to ER status and to construct an efficient prognostic prediction system. mRNA expression profiles were downloaded from TCGA and GSE70947 dataset. Two hundred seventy-one overlapping differentially expressed genes (DEGs) between the ER- and ER+ breast cancer samples were identified. Among the 271 DEGs, 109 prognostically relevant mRNAs were screened. mRNAs such as RASEF, ITM2C, CPEB2, ESR1, ANXA9, and VASN correlated strongly with breast cancer prognosis. Three modules, which contained 28, 9 and 8 enriched DEGs, were obtained from the network, and the DEGs in these modules were enriched in response to hormone stimulus, epithelial cell development, and host cell entry. Using bayes discriminant analysis, 48 signature genes were screened. We constructed a prognostic prediction system using the 48 signature genes and validated this system as relatively accurate and reliable. The DEGs might be closely associated with the prognosis in patients with breast cancer. We validated the effectiveness of our prognostic prediction system by GEO database. Therefore, this system might be a useful tool for preliminary screening and validation of potential prognosis indicators for ER+ breast cancer derived from mechanistic research.
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Affiliation(s)
- Bin Xiao
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Jianfeng Hang
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Ting Lei
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Yongyin He
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Zhenzhan Kuang
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Li Wang
- Department of Medical Research, General Hospital of Southern Theatre Command of PLA, Guangzhou, Guangdong Province, China
| | - Lidan Chen
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Jia He
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Weiyun Zhang
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Yang Liao
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China
| | - Zhaohui Sun
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China.
| | - Linhai Li
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, No. 111, Liuhua Road, Yuexiu district, Guangzhou, 510010, Guangdong Province, China.
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18
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Kumar N, Zhao D, Bhaumik D, Sethi A, Gann PH. Quantification of intrinsic subtype ambiguity in Luminal A breast cancer and its relationship to clinical outcomes. BMC Cancer 2019; 19:215. [PMID: 30849944 PMCID: PMC6408846 DOI: 10.1186/s12885-019-5392-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/20/2019] [Indexed: 12/01/2022] Open
Abstract
Background PAM50 gene profiling assigns each cancer to a single intrinsic subtype. However, individual cancers vary in their adherence to a prototype, and due to bulk tissue sampling, some may exhibit expression patterns that indicate intra-tumor admixture of multiple subtypes. Our objective was to develop admixture metrics from PAM50 gene expression profiles in order to stratify Luminal A (LumA) cases according to their degree of subtype admixture, and then relate such admixture to clinical and molecular variables. Methods We re-constructed scaled, normalized PAM50 profiles for 1980 cases (674 LumA) in the METABRIC cohort and for each case computed its Mahalanobis (M-) distance from its assigned centroid and M-distance from all other centroids. We used t-SNE plots to visualize overlaps in subtype clustering. With Normal-like cases excluded, we developed two metrics: Median Distance Criteria (MDC) classified pure cases as those located within the 50th percentile of the LumA centroid and > =50th percentile from any other centroid. Distance Ratio Criteria (DRC) was computed as the ratio of M-distances from the LumA centroid to the nearest non-assigned centroid. Pure and admixed LumA cases were compared on clinical/molecular traits. TCGA LumA cases (n = 509) provided independent validation. Results Compared to pure cases in METABRIC, admixed ones had older age at diagnosis, larger tumor size, and higher grade and stage. These associations were stronger for the DRC metric compared to MDC. Admixed cases were associated with HER2 gain, high proliferation, higher PAM50 recurrence scores, more frequent TP53 mutation, and less frequent PIK3CA mutation. Similar results were observed in the TCGA validation cohort, which also showed a positive association between admixture and number of clonal populations estimated by PyClone. LumA-LumB confusion predominated, but other combinations were also present. Degree of admixture was associated with overall survival in both cohorts, as was disease-free survival in TCGA, independent of age, grade and stage (HR = 2.85, Tertile 3 vs.1). Conclusions Luminal A breast cancers subgrouped based on PAM50 subtype purity support the hypothesis that admixed cases have worse clinical features and survival. Future analyses will explore more extensive genomic metrics for admixture and their spatial significance within a single tumor. Electronic supplementary material The online version of this article (10.1186/s12885-019-5392-z) contains supplementary material, which is available to authorized users.
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Hao Q, Dai C, Deng Y, Xu P, Tian T, Lin S, Wang M, Liu K, Song D, Wu Y, Guo Y, Dai Z. Pooling analysis on prognostic value of PHH3 expression in cancer patients. Cancer Manag Res 2018; 10:2279-2288. [PMID: 30104898 PMCID: PMC6071623 DOI: 10.2147/cmar.s167569] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background Various studies have evaluated the significance of phosphohistone-H3 (PHH3) expression in cancer patients, but controversy over its reliability remains. We conducted a meta-analysis to summarize the prognostic relevance of PHH3 expression in cancer patients. Patients and methods Nineteen studies, including 4803 patients, were identified by searching PubMed, Web of Science, Embase, and Cochrane Library. The correlation of PHH3 expression level with overall survival (OS), disease-free survival, and recurrence-free survival was analyzed. Results Overall, the results suggest that high expression of PHH3 can predict a poor OS (HR=2.66, 95% CI=1.74–4.08, P<0.001), disease-free survival (HR=3.40, 95% CI=1.47–7.87, P=0.004), and recurrence-free survival (HR=2.80, 95% CI=1.61–4.85, P<0.001) in cancer patients. The subgroup analysis showed that highly expressed PHH3 was significantly related to breast cancer (HR=5.66, 95% CI=2.72–11.78, P<0.001) and urogenital tumors (HR=3.01, 95% CI=1.78–5.09, P<0.001). Furthermore, no significant difference was found between Asian (HR=1.98, 95% CI=1.08–3.63, P=0.026) and Caucasian populations (HR=3.01, 95% CI=1.87–4.85, P<0.001) regarding OS and PHH3 expression. Conclusion This meta-analysis indicates that high expression of PHH3 may serve as a biomarker for poor prognosis in patients with cancer.
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Affiliation(s)
- Qian Hao
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Cong Dai
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Yujiao Deng
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Peng Xu
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Tian Tian
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Shuai Lin
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Meng Wang
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Kang Liu
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Dingli Song
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Ying Wu
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Yan Guo
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China,
| | - Zhijun Dai
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China,
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20
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Gou K, Liu J, Feng X, Li H, Yuan Y, Xing C. Expression of Minichromosome Maintenance Proteins (MCM) and Cancer Prognosis: A meta-analysis. J Cancer 2018; 9:1518-1526. [PMID: 29721062 PMCID: PMC5929097 DOI: 10.7150/jca.22691] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 01/19/2018] [Indexed: 01/08/2023] Open
Abstract
Minichromosome maintenance proteins (MCM) played a critical role in replication and cell cycle progression. However, their prognostic roles in cancer remain controversial. Therefore, we performed a meta-analysis to investigate the prognostic value of MCMs in cancers. Totally 31 eligible articles with 7653 cancer patients were included in this meta-analysis. We evaluated the relationship between MCMs expression and overall survival (OS) in various cancer patients by using pooled hazard ratios (HRs) and risk ratios (RRs) with 95% confidence intervals (CIs). The meta-analysis showed that carriers with high expression of MCM5 and MCM7 were significantly associated with short OS for pooled HR (HR=1.04, 95% CI=1.01-1.08, P=0.020, HR=1.78, 95% CI=1.04-3.02, P=0.035, respectively). For pooled RR, individuals with increased MCM2 and MCM7 expression were significantly correlated with poor OS (RR=2.30, 95% CI=1.14-4.63, P=0.019; RR=3.52, 95% CI=2.01-6.18, P<0.001, respectively). The findings suggest that high expression of MCM2, MCM5 and MCM7 might serve as predictive biomarkers for poor prognosis in cancers.
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Affiliation(s)
- Kaihua Gou
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Jingwei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Xue Feng
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Hao Li
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Chengzhong Xing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
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21
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Lykkesfeldt AE, Iversen BR, Jensen MB, Ejlertsen B, Giobbie-Hurder A, Reiter BE, Kirkegaard T, Rasmussen BB. Aurora kinase A as a possible marker for endocrine resistance in early estrogen receptor positive breast cancer. Acta Oncol 2018; 57:67-73. [PMID: 29202611 DOI: 10.1080/0284186x.2017.1404126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Cell culture studies have disclosed that the mitotic Aurora kinase A is causally involved in both tamoxifen and aromatase inhibitor resistant cell growth and thus may be a potential new marker for endocrine resistance in the clinical setting. MATERIAL AND METHODS Archival tumor tissue was available from 1323 Danish patients with estrogen receptor (ER) positive primary breast cancer, who participated in the Breast International Group (BIG) 1-98 trial, comparing treatment with tamoxifen and letrozole and both in a sequence. The expression of Aurora A was determined by immunohistochemistry in 980 tumors and semi quantitively scored into three groups; negative/weak, moderate and high. The Aurora A expression levels were compared to other clinico-pathological parameters and outcome, defined as disease-free survival (DFS) and overall survival (OS). RESULTS High expression of Aurora A was found in 26.9% of patients and moderate in 57.0%. High expression was significantly associated with high malignancy grade and HER2 amplification. High Aurora A expression was significantly more frequent in ductal compared to lobular carcinomas. We found no significant association between Aurora A expression and DFS or OS and no evidence of interaction between Aurora A expression and benefits from tamoxifen versus letrozole. CONCLUSIONS Aurora A expression in breast tumors was associated with high malignancy grade III and with HER2 amplification. A trend as a prognostic factor for OS was found in patients with high Aurora A expression. No predictive property was observed in this study with early breast cancer.
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Affiliation(s)
- Anne E. Lykkesfeldt
- Unit of Cell Death and Metabolism, Danish Cancer Society Research Center, Copenhagen, Denmark
| | | | - Maj-Britt Jensen
- Danish Breast Cancer Cooperative Group (DBCG), Rigshospitalet, Copenhagen, Denmark
| | - Bent Ejlertsen
- Danish Breast Cancer Cooperative Group (DBCG), Rigshospitalet, Copenhagen, Denmark
| | - Anita Giobbie-Hurder
- International Breast Cancer Study Group (IBCSG), Department of Biostatistics & Computational Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Birgit E. Reiter
- Unit of Cell Death and Metabolism, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Tove Kirkegaard
- Department of Surgery, Zealand University Hospital, Koege, Denmark
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22
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Xia JL, Fan WJ, Zheng FM, Zhang WW, Xie JJ, Yang MY, Kamran M, Wang P, Teng HM, Wang CL, Liu Q. Inhibition of AURKA kinase activity suppresses collective invasion in a microfluidic cell culture platform. Sci Rep 2017; 7:2973. [PMID: 28592839 PMCID: PMC5462816 DOI: 10.1038/s41598-017-02623-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 04/13/2017] [Indexed: 11/14/2022] Open
Abstract
Tumor local invasion is the first step of metastasis cascade which remains the key obstacle for cancer therapy. Collective cell migration plays a critical role in tumor invading into surrounding tissues. In vitro assays fail to assess collective invasion in a real time manner. Herein we aim to develop a three-dimensional (3D) microfluidic cell invasion model to determine the dynamic process. In this model, collective invasion of breast cancer cells is induced by the concentration gradient of fetal bovine serum. We find that breast cancer cells adopt a collective movement rather than a random manner when the cells invade into extracellular matrix. The leading cells in the collective movement exhibit an increased expression of an Aurora kinase family protein - AURKA compared with the follower cells. Inhibition of AURKA kinase activity by VX680 or AKI603 significantly reduces the phosphorylation of ERK1/2 (Thr202/Tyr204) and collective cohort formation. Together, our study illustrates that AURKA acts as a potential therapeutic target for suppressing the process of tumor collective invasion. The 3D microfluidic cell invasion model is a reliable, measurable and dynamic platform for exploring potential drugs to inhibit tumor collective invasion.
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Affiliation(s)
- Jiang-Long Xia
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Wen-Jun Fan
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China.,Department of Hematology, The Third Affiliated Hospital; Institute of Hematology Sun Yat-sen University, Guangzhou, China
| | - Fei-Meng Zheng
- Department of Medical Oncology, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wen-Wen Zhang
- Department of Oncology, The First Hospital Affiliated to Dalian Medical University, Dalian, China
| | - Jia-Jun Xie
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Meng-Ying Yang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Muhammad Kamran
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Peng Wang
- Department of Thoracic Surgery, The First Hospital Affiliated to Dalian Medical University, Dalian, China
| | - Hong-Ming Teng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Chun-Li Wang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Quentin Liu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China. .,Department of Hematology, The Third Affiliated Hospital; Institute of Hematology Sun Yat-sen University, Guangzhou, China. .,Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.
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23
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Yousef EM, Furrer D, Laperriere DL, Tahir MR, Mader S, Diorio C, Gaboury LA. MCM2: An alternative to Ki-67 for measuring breast cancer cell proliferation. Mod Pathol 2017; 30:682-697. [PMID: 28084344 DOI: 10.1038/modpathol.2016.231] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 11/10/2022]
Abstract
Breast cancer is a heterogeneous disease comprising a diversity of tumor subtypes that manifest themselves in a wide variety of clinical, pathological, and molecular features. One important subset, luminal breast cancers, comprises two clinically distinct subtypes luminal A and B each of them endowed with its own genetic program of differentiation and proliferation. Luminal breast cancers were operationally defined as follows: Luminal A: ER+, PR+, HER2-, Ki-67<14% and Luminal B: ER+ and/or PR+, HER2-,Ki-67≥14% or, alternatively ER+ and/or PR+, HER2+, any Ki-67. There is currently a need for a clinically robust and validated immunohistochemical assay that can help distinguish between luminal A and B breast cancer. MCM2 is a family member of the minichromosome maintenance protein complex whose role in DNA replication and cell proliferation is firmly established. As MCM2 appears to be an attractive alternative to Ki-67, we sought to study the expression of MCM2 and Ki-67 in different histological grades and molecular subtypes of breast cancer focusing primarily on ER-positive tumors. MCM2 and Ki-67 mRNA expression were studied using in silico analysis of available DNA microarray and RNA-sequencing data of human breast cancer. We next used immunohistochemistry to evaluate protein expression of MCM2 and Ki-67 on tissue microarrays of invasive breast carcinoma. We found that MCM2 and Ki-67 are highly expressed in breast tumors of high histological grades, comprising clinically aggressive tumors such as triple-negative, HER2-positive and luminal B subtypes. MCM2 expression was detected at higher levels than that of Ki-67 in normal breast tissues and in breast cancers. The bimodal distribution of MCM2 scores in ER+/HER2- breast tumors led to the identification of two distinct subgroups with different relapse-free survival rates. In conclusion, MCM2 expression can help sorting out two clinically important subsets of luminal breast cancer whose treatment and clinical outcomes are likely to diverge.
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Affiliation(s)
- Einas M Yousef
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada.,Department of Histology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Daniela Furrer
- Cancer Research Centre at Laval University, Quebec City, QC, Canada.,Oncology Axis, CHU of Quebec Research Center, Hôpital du Saint-Sacrement, Quebec City, QC, Canada.,Department of Social and Preventive Medicine, Faculty of Medicine, Laval University, Quebec City, QC, Canada
| | - David L Laperriere
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
| | - Muhammad R Tahir
- The University of Montreal Hospital Research Centre, Montreal, QC, Canada
| | - Sylvie Mader
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada.,Department of Biochemistry, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Caroline Diorio
- Cancer Research Centre at Laval University, Quebec City, QC, Canada.,Oncology Axis, CHU of Quebec Research Center, Hôpital du Saint-Sacrement, Quebec City, QC, Canada.,Department of Social and Preventive Medicine, Faculty of Medicine, Laval University, Quebec City, QC, Canada.,Deschênes-Fabia Center for Breast Diseases, Hôpital du St-Sacrement, Quebec City, QC, Canada
| | - Louis A Gaboury
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada.,Department of Pathology and Cell Biology, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
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24
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Augmented expression of polo-like kinase 1 indicates poor clinical outcome for breast patients: a systematic review and meta-analysis. Oncotarget 2017; 8:57723-57732. [PMID: 28915707 PMCID: PMC5593679 DOI: 10.18632/oncotarget.17301] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 03/09/2017] [Indexed: 12/15/2022] Open
Abstract
Polo-like kinases 1 (PLK1), a key regulator of mitosis, plays an essential role in maintaining genomic stability. Up-regulation of PLK1 was found in tumorigenesis and tumor progression of diverse cancers. However, the clinicopathological and prognostic implications of PLK1 in breast cancer (BC) have yet to be unveiled. Therefore, using PubMed, Web of Science, Embase, and Chinese databases, we conducted a meta-analysis to define the potential clinical value of PLK1 in BC. Eleven eligible articles with 2481 patients enrolled were included in the present meta-analysis, of which eight studies reported on the relationship between PLK1 expression and clinicopathological features, and nine studies provided survival data in BC patients. Furthermore, the results revealed that high PLK1 levels were significantly associated with larger tumor size (OR=1.703, 95%CIs: 1.315-2.205, P<0.001), higher pathological grading (OR=6.028, 95%CIs: 2.639-13.772, P<0.001), and lymph node metastasis (OR= 1.524, 95%CIs: 1.192-1.950, P=0.001). Moreover, PLK1 was found to be a valuable factor for distinguishing lobular BC from ductal BC with the pooled OR=0.215(95%CIs: 0.083-0.557, P=0.002). Analysis of included data showed that high PLK1 expression significantly indicated worse overall survival for BC patients (HR= 3.438, 95%CIs: 2.293-5.154, P<0.001), as well as worse cancer specific survival and disease-free survival (HR=2.414, 95%CIs: 1.633-3.567, P<0.001 and HR= 2.261, 95%CIs: 1.796-2.951, P<0.001, respectively). This quantitative meta-analysis suggests that high PLK1 expression is a credible indicator for the progression of BC and confirms a higher risk of a worse survival rate in patients with BC.
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25
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Newcombe PJ, Raza Ali H, Blows FM, Provenzano E, Pharoah PD, Caldas C, Richardson S. Weibull regression with Bayesian variable selection to identify prognostic tumour markers of breast cancer survival. Stat Methods Med Res 2017; 26:414-436. [PMID: 25193065 PMCID: PMC6055985 DOI: 10.1177/0962280214548748] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
As data-rich medical datasets are becoming routinely collected, there is a growing demand for regression methodology that facilitates variable selection over a large number of predictors. Bayesian variable selection algorithms offer an attractive solution, whereby a sparsity inducing prior allows inclusion of sets of predictors simultaneously, leading to adjusted effect estimates and inference of which covariates are most important. We present a new implementation of Bayesian variable selection, based on a Reversible Jump MCMC algorithm, for survival analysis under the Weibull regression model. A realistic simulation study is presented comparing against an alternative LASSO-based variable selection strategy in datasets of up to 20,000 covariates. Across half the scenarios, our new method achieved identical sensitivity and specificity to the LASSO strategy, and a marginal improvement otherwise. Runtimes were comparable for both approaches, taking approximately a day for 20,000 covariates. Subsequently, we present a real data application in which 119 protein-based markers are explored for association with breast cancer survival in a case cohort of 2287 patients with oestrogen receptor-positive disease. Evidence was found for three independent prognostic tumour markers of survival, one of which is novel. Our new approach demonstrated the best specificity.
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Affiliation(s)
| | - H Raza Ali
- Cancer Research UK Cambridge Institute, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
- Cambridge Experimental Cancer Medicine Centre and NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | - FM Blows
- Department of Oncology, University of Cambridge, Cambridge, UK
| | - E Provenzano
- NIH Cambridge Biomedical Research Centre, Cambridge, UK
| | - PD Pharoah
- Cambridge Experimental Cancer Medicine Centre and NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Department of Oncology, University of Cambridge, Cambridge, UK
- Strangeways Research Laboratory, Cambridge, UK
| | - C Caldas
- Cancer Research UK Cambridge Institute, Cambridge, UK
- Cambridge Experimental Cancer Medicine Centre and NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Department of Oncology, University of Cambridge, Cambridge, UK
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26
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Pourteimoor V, Mohammadi-Yeganeh S, Paryan M. Breast cancer classification and prognostication through diverse systems along with recent emerging findings in this respect; the dawn of new perspectives in the clinical applications. Tumour Biol 2016; 37:14479-14499. [DOI: 10.1007/s13277-016-5349-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 09/06/2016] [Indexed: 01/10/2023] Open
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27
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San Huang Decoction downregulates Aurora kinase A to inhibit breast cancer cell growth and enhance chemosenstivity to anti-tumor drugs. Pathol Res Pract 2016; 212:696-703. [DOI: 10.1016/j.prp.2016.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/22/2016] [Accepted: 05/13/2016] [Indexed: 01/20/2023]
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28
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Yan M, Wang C, He B, Yang M, Tong M, Long Z, Liu B, Peng F, Xu L, Zhang Y, Liang D, Lei H, Subrata S, Kelley KW, Lam EWF, Jin B, Liu Q. Aurora-A Kinase: A Potent Oncogene and Target for Cancer Therapy. Med Res Rev 2016; 36:1036-1079. [PMID: 27406026 DOI: 10.1002/med.21399] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 05/18/2016] [Accepted: 06/08/2016] [Indexed: 02/06/2023]
Abstract
The Aurora kinase family is comprised of three serine/threonine kinases, Aurora-A, Aurora-B, and Aurora-C. Among these, Aurora-A and Aurora-B play central roles in mitosis, whereas Aurora-C executes unique roles in meiosis. Overexpression or gene amplification of Aurora kinases has been reported in a broad range of human malignancies, pointing to their role as potent oncogenes in tumorigenesis. Aurora kinases therefore represent promising targets for anticancer therapeutics. A number of Aurora kinase inhibitors (AKIs) have been generated; some of which are currently undergoing clinical evaluation. Recent studies have unveiled novel unexpected functions of Aurora kinases during cancer development and the mechanisms underlying the anticancer actions of AKIs. In this review, we discuss the most recent advances in Aurora-A kinase research and targeted cancer therapy, focusing on the oncogenic roles and signaling pathways of Aurora-A kinases in promoting tumorigenesis, the recent preclinical and clinical AKI data, and potential alternative routes for Aurora-A kinase inhibition.
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Affiliation(s)
- Min Yan
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, China.,Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Chunli Wang
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Bin He
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - Mengying Yang
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Mengying Tong
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Zijie Long
- Institute of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bing Liu
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Fei Peng
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Lingzhi Xu
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Yan Zhang
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - Dapeng Liang
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Haixin Lei
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Sen Subrata
- Department of Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Keith W Kelley
- Laboratory of Immunophysiology, Department of Animal Sciences, College of ACES, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Pathology, College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Eric W-F Lam
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Bilian Jin
- Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China.
| | - Quentin Liu
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, China. .,Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China. .,Institute of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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29
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AurkA controls self-renewal of breast cancer-initiating cells promoting wnt3a stabilization through suppression of miR-128. Sci Rep 2016; 6:28436. [PMID: 27341528 PMCID: PMC4920028 DOI: 10.1038/srep28436] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/06/2016] [Indexed: 12/17/2022] Open
Abstract
AurkA overexpression was previously found in breast cancer and associated to its ability in controlling chromosome segregation during mitosis, however whether it may affect breast cancer cells, endorsed with stem properties (BCICs), is still unclear. Surprisingly, a strong correlation between AurkA expression and β-catenin localization in breast cancer tissues suggested a link between AurkA and Wnt signaling. In our study, AurkA knock-down reduced wnt3a mRNA and suppressed metastatic signature of MDA-MB-231 cells. As a consequence, the amount of BCICs and their migratory capability dramatically decreased. Conversely, wnt3a mRNA stabilization and increased CD44(+)/CD24(low/-) subpopulation was found in AurkA-overexpressing MCF7 cells. In vivo, AurkA-overexpressing primary breast cancer cells showed higher tumorigenic properties. Interestingly, we found that AurkA suppressed the expression of miR-128, inhibitor of wnt3a mRNA stabilization. Namely, miR-128 suppression realized after AurkA binding to Snail. Remarkably, a strong correlation between AurkA and miR-128 expression in breast cancer tissues confirmed our findings. This study provides novel insights into an undisclosed role for the kinase AurkA in self-renewal and migration of BCICs affecting response to cancer therapies, metastatic spread and recurrence. In addition, it suggests a new therapeutic strategy taking advantage of miR-128 to suppress AurkA-Wnt3a signaling.
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30
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Head-to-head comparison of the impact of Aurora A, Aurora B, Repp86, CDK1, CDK2 and Ki67 expression in two of the most relevant gynaecological tumor entities. Arch Gynecol Obstet 2016; 294:813-23. [PMID: 27101368 DOI: 10.1007/s00404-016-4104-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 04/08/2016] [Indexed: 12/25/2022]
Abstract
PURPOSE The dysregulation of cell cycle kinases plays a crucial role in carcinogenesis and the expression of various kinases has been attributed to aggressive tumor growth and an unfavourable prognosis in oncological patients. We, therefore, aimed to evaluate the expression of Ki67 among five additional cell cycle kinases in a collective of mammary and ovarian tumor specimens and to find a correlation with clinicopathological parameters. METHODS 76 mammary and 93 ovarian benign and malignant tumor samples were immunohistochemically stained and evaluated for the expression of Aurora A and B, Repp86, CDK1 and 2 (only breast specimens) and Ki67. The expression patterns of these cell cycle kinases were matched with retrospectively collected clinicopathological parameters. RESULTS All examined cell cycle kinases accurately discriminated benign from malignant breast and ovarian tissues. In breast cancer, Aurora A and B-, Repp86-, CDK2- and Ki67-expression was inversely associated with ER expression. No correlation with the HER2-status was found in our collective. Importantly, we found a significant correlation between the expression of Aurora A and CDK1 and axillary lymph node metastasis in breast cancer. Furthermore, a shortened disease free survival (DFS) upon expression of Aurora B and CDK2 was shown in breast cancer patients. None of the cell cycle kinases was associated with predictive or prognostic factors in epithelial ovarian cancer. CONCLUSION The prognostic value of the expression of Ki67 is overtrumped by alternative cell cycle kinases when it comes to prediction of axillary tumor spread and a shortened DFS, which might allow a further risk stratification in breast cancer patients.
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31
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Tőkés T, Tőkés AM, Szentmártoni G, Kiszner G, Madaras L, Kulka J, Krenács T, Dank M. Expression of cell cycle markers is predictive of the response to primary systemic therapy of locally advanced breast cancer. Virchows Arch 2016; 468:675-86. [PMID: 27026269 DOI: 10.1007/s00428-016-1925-x] [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: 06/04/2015] [Revised: 11/16/2015] [Accepted: 03/07/2016] [Indexed: 12/18/2022]
Abstract
We aimed to analyze to what extent expression of four cell cycle regulation markers-minichromosome maintenance protein (MCM2), Ki-67, cyclin A, and phosphohistone-H3 (PHH3)-predict response to primary systemic therapy in terms of pathological complete remission (pCR). In search of an accurate and reproducible scoring method, we compared computer-assisted (CA) and routine visual assessment (VA) of immunoreactivity. We included 57 patients with breast cancer in the study. The cell cycle markers were detected using immunohistochemistry on pre-therapy core biopsy samples. Parallel CA (validated by manual labeling) and standard VA were performed and compared for diagnostic agreement and predictive value for pCR. CA and VA results were dichotomized based on receiver operating characteristic analysis defined optimal cut-off values. "High" was defined by staining scores above the optimal cut-off, while "low" had staining scores below the optimal cut-off. The CA method resulted in significantly lower values for Ki-67 and MCM2 compared to VA (mean difference, -3.939 and -4.323). Diagnostic agreement was highest for cyclin A and PHH3 (-0.586 and -0.666, respectively). Regardless of the method (CA/VA) used, all tested markers were predictive of pCR. Optimal cut-off-based dichotomization improved diagnostic agreement between the CA and VA methods for every marker, in particular for MCM2 (κ = 1, p < 0.000). Cyclin A displayed excellent agreement (κ = 0.925; p < 0.000), while Ki-67 and PHH3 showed good agreement (κ = 0.789, p < 0.000 and κ = 0.794, p < 0.000, respectively). We found all cell cycle markers (Ki-67, MCM2, cyclin A, and PHH3) predictive of pCR. Diagnostic agreement between CA and VA was better at lower staining scores but improved after optimal cut-off-based dichotomization.
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Affiliation(s)
- Tímea Tőkés
- 1st Department of Internal Medicine, Oncological Division, Semmelweis University, Tömő utca 25-29, 4th floor, Budapest, 1083, Hungary
| | - Anna-Mária Tőkés
- MTA-SE Tumor Progression Research Group, 2nd Department of Pahtology, Semmelweis University, Üllői út 93, Budapest, 1091, Hungary.,2nd Department of Pathology, Semmelweis University, Üllői út 93, Budapest, 1091, Hungary
| | - Gyöngyvér Szentmártoni
- 1st Department of Internal Medicine, Oncological Division, Semmelweis University, Tömő utca 25-29, 4th floor, Budapest, 1083, Hungary
| | - Gergő Kiszner
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - Lilla Madaras
- 2nd Department of Pathology, Semmelweis University, Üllői út 93, Budapest, 1091, Hungary
| | - Janina Kulka
- 2nd Department of Pathology, Semmelweis University, Üllői út 93, Budapest, 1091, Hungary
| | - Tibor Krenács
- MTA-SE Tumor Progression Research Group, 2nd Department of Pahtology, Semmelweis University, Üllői út 93, Budapest, 1091, Hungary.,1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - Magdolna Dank
- 1st Department of Internal Medicine, Oncological Division, Semmelweis University, Tömő utca 25-29, 4th floor, Budapest, 1083, Hungary.
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32
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Blows FM, Ali HR, Dawson SJ, Le Quesne J, Provenzano E, Caldas C, Pharoah PD. Decline in Antigenicity of Tumor Markers by Storage Time Using Pathology Sections Cut From Tissue Microarrays. Appl Immunohistochem Mol Morphol 2016; 24:221-6. [PMID: 26067143 PMCID: PMC4892716 DOI: 10.1097/pai.0000000000000172] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 11/19/2014] [Indexed: 11/27/2022]
Abstract
Sectioning a whole tissue microarrray (TMA block) and storing the sections maximizes the number of sections obtained, but may impair the antigenicity of the stored sections. We have investigated the impact of TMA section storage on antigenicity. First, we reexamined existing TMA data to determine whether antigenicity in stored sections changes over time. Component scores for each marker, based on cellular compartment of staining and score-type, were evaluated separately. Residual components scores adjusted for grade, tumor size, and node positivity, were regressed on the number of days storage to evaluate the effect of storage time. Storage time ranged from 2 to 1897 days, and the mean change in antigenicity per year ranged from -0.88 (95% confidence interval, -1.11 to -0.65) to 0.035 (95% confidence interval, 0.016-0.054). Further analysis showed no significant improvement in the fit of survival models if storage time adjusted scores were included in the models rather than unadjusted scores. We then compared 3 ways of processing TMA sections after cutting-immediate staining, staining after 1 year, and staining after 1 year coated in wax-on the immunohistochemistry results for: progesterone receptor, a routinely used, robust antibody, and MKI67, which is generally considered less robust. The progesterone receptor scores for stored sections were similar to those for unstored sections, whereas the MKI67 scores for stored sections were substantially different to those for unstored sections. Wax coating made little difference to the results. Biomarker antigenicity shows a small decline over time that is unlikely to have an important effect on studies of prognostic biomarkers.
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Affiliation(s)
| | - Hamid R. Ali
- Pathology
- Cancer Research UK Cambridge Institute, University of Cambridge
| | | | | | - Elena Provenzano
- Department of Pathology, Addenbrooke’s Hospital NHS Foundation Trust, Cambridge
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Su CY, Liu YP, Yang CJ, Lin YF, Chiou J, Chi LH, Lee JJ, Wu ATH, Lu PJ, Huang MS, Hsiao M. Plasminogen Activator Inhibitor-2 Plays a Leading Prognostic Role among Protease Families in Non-Small Cell Lung Cancer. PLoS One 2015; 10:e0133411. [PMID: 26230665 PMCID: PMC4521958 DOI: 10.1371/journal.pone.0133411] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 06/26/2015] [Indexed: 01/16/2023] Open
Abstract
Background In lung cancer, uPA, its receptor (uPAR), and the inhibitors PAI-1 and PAI-2 of the plasminogen activator family interact with MMP-2 and MMP-9 of the MMP family to promote cancer progression. However, it remains undetermined which of these markers plays the most important role and may be the most useful indicator to stratify the patients by risk. Methods We determined the individual prognostic value of these 6 markers by analyzing a derivation cohort with 98 non-small cell lung cancer patients by immunohistochemical staining. The correlation between the IHC expression levels of these markers and disease prognosis was investigated, and an immunohistochemical panel for prognostic prediction was subsequently generated through prognostic model analysis. The value of the immunohistochemical panel was then verified by a validation cohort with 91 lung cancer patients. Results In derivation cohort, PAI-2 is the most powerful prognostic factor (HR = 2.30; P = 0.001), followed by MMP-9 (HR = 2.09; P = 0.019) according to multivariate analysis. When combining PAI-2 and MMP-9, the most unfavorable prognostic group (low PAI-2 and high MMP-9 IHC expression levels) showed a 6.40-fold increased risk of a poor prognosis compared to the most favorable prognostic group (high PAI-2 and low MMP-9 IHC expression levels). PAI-2 and MMP-9 IHC panel could more precisely identify high risk patients in both derivation and validation cohort. Conclusions We revealed PAI-2 as the most powerful prognostic marker among PA and MMP protease family even after considering their close relationships with each other. By utilizing a combination of PAI-2 and MMP-9, more precise prognostic information than merely using pathological stage alone can be obtained for lung cancer patients.
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Affiliation(s)
- Chia-Yi Su
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Peng Liu
- Department of Genome Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Jen Yang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuan-Feng Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jean Chiou
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- The Ph.D. Program for Cancer Biology and Drug Discovery, China Medical University and Academia Sinica, Taichung, Taiwan
| | - Li-Hsing Chi
- The Ph.D. Program for Translational Medicine, Taipei Medical University and Academia Sinica, Taipei, Taiwan
| | - Jih-Jong Lee
- Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Alex T. H. Wu
- The Ph.D. Program for Translational Medicine, Taipei Medical University and Academia Sinica, Taipei, Taiwan
| | - Pei-Jung Lu
- Institute of Clinical Medicine, National Cheng-Kung University, Tainan, Taiwan
| | - Ming-Shyan Huang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail: (MH); (MSH)
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- * E-mail: (MH); (MSH)
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Murria R, Palanca S, de Juan I, Alenda C, Egoavil C, Seguí FJ, García-Casado Z, Juan MJ, Sánchez AB, Segura Á, Santaballa A, Chirivella I, Llop M, Pérez G, Barragán E, Salas D, Bolufer P. Immunohistochemical, genetic and epigenetic profiles of hereditary and triple negative breast cancers. Relevance in personalized medicine. Am J Cancer Res 2015; 5:2330-43. [PMID: 26328265 PMCID: PMC4548346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Accepted: 06/11/2015] [Indexed: 06/04/2023] Open
Abstract
This study aims to identify the profile of immunohistochemical (IHC) parameters, copy number aberrations (CNAs) and epigenetic alterations [promoter methylation (PM) and miR expression] related to hereditary (H) and triple negative (TN) breast cancer (BC). This profile could be of relevance for guiding tumor response to treatment with targeting therapy. The study comprises 278 formalin fixed paraffin-embedded BCs divided into two groups: H group, including 88 hereditary BC (HBC) and 190 non hereditary (NHBC), and TN group, containing 79 TNBC and 187 non TNBC (NTNBC). We assessed IHC parameters (Ki67, ER, PR, HER2, CK5/6, CK18 and Cadherin-E), CNA of 20 BC related genes, and PM of 24 tumor suppressor genes employing MLPA/MS-MLPA (MRC Holland, Amsterdam). MiR-4417, miR-423-3p, miR-590-5p and miR-187-3p expression was assessed by quantitative RT-PCR (Applied Biosystems). Binary logistic regression was applied to select the parameters that better differentiate the HBC or TN groups. For HBC we found that, ER expression, ERBB2 CNA and PM in RASSF1 and TIMP3 were associated with NHBC whereas; MYC and AURKA CNA were linked to HBC. For TNBC, we found that CDC6 CNA, GSTP1 and RASSF1 PM and miR-423-3p hyperexpression were characteristic of NTNBC, while MYC aberrations, BRCA1 hypermethylation and miR-590-5p and miR-4417 hyperexpression were more indicative of TNBC. The selected markers allow establishing BC subtypes, which are characterized by showing similar etiopathogenetic mechanisms, some of them being molecular targets for known drugs or possible molecular targets. These results could be the basis to implement a personalized therapy.
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Affiliation(s)
- Rosa Murria
- Laboratory of Molecular Biology, Service of Clinical Analysis, University Hospital La FeValencia, Spain
| | - Sarai Palanca
- Laboratory of Molecular Biology, Service of Clinical Analysis, University Hospital La FeValencia, Spain
| | - Inmaculada de Juan
- Laboratory of Molecular Biology, Service of Clinical Analysis, University Hospital La FeValencia, Spain
| | - Cristina Alenda
- Department of Pathology, University General HospitalAlicante, Spain
| | - Cecilia Egoavil
- Department of Pathology, University General HospitalAlicante, Spain
| | | | | | | | - Ana B Sánchez
- Genetic Counseling Unit, Elche HospitalAlicante, Spain
| | - Ángel Segura
- Genetic Counseling Unit, University Hospital La FeValencia, Spain
| | - Ana Santaballa
- Department of oncology, University Hospital La FeValencia, Spain
| | | | - Marta Llop
- Laboratory of Molecular Biology, Service of Clinical Analysis, University Hospital La FeValencia, Spain
| | - Gema Pérez
- Laboratory of Molecular Biology, Service of Clinical Analysis, University Hospital La FeValencia, Spain
| | - Eva Barragán
- Laboratory of Molecular Biology, Service of Clinical Analysis, University Hospital La FeValencia, Spain
| | - Dolores Salas
- General Department of Public Health, Conselleria de SanitatGeneralitat Valenciana, Spain
| | - Pascual Bolufer
- Laboratory of Molecular Biology, Service of Clinical Analysis, University Hospital La FeValencia, Spain
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Gerring Z, Pearson JF, Morrin HR, Robinson BA, Harris GC, Walker LC. Phosphohistone H3 outperforms Ki67 as a marker of outcome for breast cancer patients. Histopathology 2015; 67:538-47. [PMID: 25728258 DOI: 10.1111/his.12678] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 02/20/2015] [Indexed: 12/30/2022]
Abstract
AIMS The proliferation marker Ki67 has been extensively investigated as a prognostic factor in breast cancer, but has not gained widespread clinical acceptance. Phosphohistone H3 is a new immunohistochemical marker for quantifying mitoses; however, there is limited information on its prognostic value in breast cancer. In this study, we performed a head-to-head comparison of Ki67 and phosphohistone H3 to establish the marker with the greatest prognostic value. METHODS AND RESULTS Tissue microarrays from 108 breast cancer patients were immunohistochemically stained for Ki67 and phosphohistone H3. Our results showed that phosphohistone H3 had a greater prognostic value than Ki67 in a multivariable model that adjusted for traditional prognostic variables in breast cancer. Phosphohistone H3 staining was a stronger predictor of survival at 5 years after diagnosis [hazard ratio (HR) 4.35, P < 10(-5) ] than Ki67 (HR 2.44, P = 0.004), and better separated the risk of death in patients aged >45 years. Importantly, phosphohistone H3 consistently showed strong unequivocal staining, in contrast to the variable staining intensities associated with Ki67. CONCLUSIONS Our study suggests that phosphohistone H3 staining is a stronger and more robust prognostic indicator than Ki67 staining in breast cancer patients, and has the potential for use in routine diagnostic laboratories.
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Affiliation(s)
- Zac Gerring
- Department of Pathology, University of Otago, Christchurch, Christchurch, New Zealand.,Neurogenetics Laboratory, Genetics and Computational Biology Division, QIMR Berghofer Institute of Medical Research, Brisbane, Qld, Australia
| | - John F Pearson
- Biostatistics and Computational Biology Unit, University of Otago, Christchurch, New Zealand
| | - Helen R Morrin
- Department of Pathology, University of Otago, Christchurch, Christchurch, New Zealand
| | - Bridget A Robinson
- Department of Medicine, University of Otago, Christchurch, New Zealand.,Canterbury Regional Cancer and Haematology Service, Christchurch, New Zealand
| | - Gavin C Harris
- Department of Anatomical Pathology, Canterbury District Health Board, Christchurch, New Zealand
| | - Logan C Walker
- Department of Pathology, University of Otago, Christchurch, Christchurch, New Zealand
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Simões J, Amado FM, Vitorino R, Helguero LA. A meta-analysis to evaluate the cellular processes regulated by the interactome of endogenous and over-expressed estrogen receptor alpha. Oncoscience 2015; 2:487-496. [PMID: 26097882 PMCID: PMC4468335 DOI: 10.18632/oncoscience.138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 03/04/2015] [Indexed: 01/08/2023] Open
Abstract
The nature of the proteins complexes that regulate ERα subcellular localization and activity is still an open question in breast cancer biology. Identification of such complexes will help understand development of endocrine resistance in ER+ breast cancer. Mass spectrometry (MS) has allowed comprehensive analysis of the ERα interactome. We have compared six published works analyzing the ERα interactome of MCF-7 and HeLa cells in order to identify a shared or different pathway-related fingerprint. Overall, 806 ERα interacting proteins were identified. The cellular processes were differentially represented according to the ERα purification methodology, indicating that the methodologies used are complementary. While in MCF-7 cells, the interactome of endogenous and over-expressed ERα essentially represents the same biological processes and cellular components, the proteins identified were not over-lapping; thus, suggesting that the biological response may differ as the regulatory/participating proteins in these complexes are different. Interestingly, biological processes uniquely associated to ERα over-expressed in HeLa cell line included L-serine biosynthetic process, cellular amino acid biosynthetic process and cell redox homeostasis. In summary, all the approaches analyzed in this meta-analysis are valid and complementary; in particular, for those cases where the processes occur at low frequency with normal ERα levels, and can be identified when the receptor is over-expressed. However special effort should be put into validating these findings in cells expressing physiological ERα levels.
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Affiliation(s)
- Joana Simões
- Mass Spectrometry Centre, QOPNA Research Unit, Department of Chemistry, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Francisco M Amado
- Mass Spectrometry Centre, QOPNA Research Unit, Department of Chemistry, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.,School of Healh Sciences, Universidade de Aveiro, Portugal
| | - Rui Vitorino
- Mass Spectrometry Centre, QOPNA Research Unit, Department of Chemistry, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.,Institute for Research in Biomedicine - iBiMED, Health Sciences Program, Universidade de Aveiro, Portugal
| | - Luisa A Helguero
- Mass Spectrometry Centre, QOPNA Research Unit, Department of Chemistry, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.,Institute for Research in Biomedicine - iBiMED, Health Sciences Program, Universidade de Aveiro, Portugal
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Melichar B, Adenis A, Lockhart AC, Bennouna J, Dees EC, Kayaleh O, Obermannova R, DeMichele A, Zatloukal P, Zhang B, Ullmann CD, Schusterbauer C. Safety and activity of alisertib, an investigational aurora kinase A inhibitor, in patients with breast cancer, small-cell lung cancer, non-small-cell lung cancer, head and neck squamous-cell carcinoma, and gastro-oesophageal adenocarcinoma: a five-arm phase 2 study. Lancet Oncol 2015; 16:395-405. [PMID: 25728526 DOI: 10.1016/s1470-2045(15)70051-3] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Alisertib is an investigational, oral, selective inhibitor of aurora kinase A. We aimed to investigate the safety and activity of single-agent alisertib in patients with predefined types of advanced solid tumours. METHODS We did a multicentre phase 1/2 study at 40 centres in four countries (Czech Republic, France, Poland, and the USA). Here, we report results from phase 2; enrolment for the study began on Feb 16, 2010, and ended on May 3, 2013. Adult patients were eligible for the study if they had either breast cancer, small-cell lung cancer, non-small-cell lung cancer, head and neck squamous-cell carcinoma, or gastro-oesophageal adenocarcinoma that had relapsed or was refractory to chemotherapy. Patients had to have undergone two or fewer previous cytotoxic regimens (four or fewer for breast cancer patients), not including adjuvant or neoadjuvant treatments. Enrolment followed a two-stage design: to proceed to the second stage, two or more objective responses were needed in the first 20 response-assessable patients in each of the five tumour cohorts. Alisertib was administered orally in 21-day cycles at the recommended phase 2 dose of 50 mg twice daily for 7 days followed by a break of 14 days. The protocol-specified primary endpoint was the proportion of patients with an objective response, assessed by Response Evaluation Criteria In Solid Tumors version 1.1 in the response-assessable population (ie, patients with measurable disease who received at least one dose of alisertib and had undergone at least one post-baseline tumour assessment). This completed trial is registered with ClinicalTrials.gov, NCT01045421. FINDINGS By May 31, 2013, 249 patients had been treated, 53 with breast cancer, 60 with small-cell lung cancer, 26 with non-small-cell lung cancer, 55 with head and neck squamous-cell carcinoma, and 55 with gastro-oesophageal adenocarcinoma. Among response-assessable patients, an objective response was noted in nine (18%, 95% CI 9-32) of 49 women with breast cancer, ten (21%, 10-35) of 48 participants with small-cell lung cancer, one (4%, 0-22) of 23 patients with non-small-cell lung cancer, four (9%, 2-21) of 45 people with head and neck squamous-cell carcinoma, and four (9%, 2-20) of 47 individuals with gastro-oesophageal adenocarcinoma; all were partial responses. Adverse events were similar across tumour types. The most frequent drug-related grade 3-4 adverse events included neutropenia (n=107 [43%]), leukopenia (53 [21%]), and anaemia (26 [10%]). Serious drug-related adverse events were reported in 108 (43%) patients. INTERPRETATION These data support further clinical assessment of alisertib in patients with solid tumours, particularly those with breast cancer and small-cell lung cancer. FUNDING Millennium Pharmaceuticals, Inc, a wholly owned subsidiary of Takeda Pharmaceutical Company Limited.
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Affiliation(s)
- Bohuslav Melichar
- Department of Oncology, Palacký University Medical School and Teaching Hospital, Olomouc, Czech Republic.
| | | | | | | | - E Claire Dees
- UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC, USA
| | - Omar Kayaleh
- Department of Internal Medicine, MD Anderson Cancer Center, Orlando, FL, USA
| | - Radka Obermannova
- Department of Pharmacology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | | | - Petr Zatloukal
- Department of Pneumology and Thoracic Surgery, Charles University, Prague, Czech Republic
| | - Bin Zhang
- Millennium Pharmaceuticals, Inc, Cambridge, MA, USA
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Modelska A, Turro E, Russell R, Beaton J, Sbarrato T, Spriggs K, Miller J, Gräf S, Provenzano E, Blows F, Pharoah P, Caldas C, Le Quesne J. The malignant phenotype in breast cancer is driven by eIF4A1-mediated changes in the translational landscape. Cell Death Dis 2015; 6:e1603. [PMID: 25611378 PMCID: PMC4669741 DOI: 10.1038/cddis.2014.542] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 10/29/2014] [Accepted: 11/03/2014] [Indexed: 01/09/2023]
Abstract
Human mRNA DeXD/H-box helicases are ubiquitous molecular motors that are required for the majority of cellular processes that involve RNA metabolism. One of the most abundant is eIF4A, which is required during the initiation phase of protein synthesis to unwind regions of highly structured mRNA that would otherwise impede the scanning ribosome. Dysregulation of protein synthesis is associated with tumorigenesis, but little is known about the detailed relationships between RNA helicase function and the malignant phenotype in solid malignancies. Therefore, immunohistochemical analysis was performed on over 3000 breast tumors to investigate the relationship among expression of eIF4A1, the helicase-modulating proteins eIF4B, eIF4E and PDCD4, and clinical outcome. We found eIF4A1, eIF4B and eIF4E to be independent predictors of poor outcome in ER-negative disease, while in contrast, the eIF4A1 inhibitor PDCD4 was related to improved outcome in ER-positive breast cancer. Consistent with these data, modulation of eIF4A1, eIF4B and PCDC4 expression in cultured MCF7 cells all restricted breast cancer cell growth and cycling. The eIF4A1-dependent translatome of MCF7 cells was defined by polysome profiling, and was shown to be highly enriched for several classes of oncogenic genes, including G-protein constituents, cyclins and protein kinases, and for mRNAs with G/C-rich 5'UTRs with potential to form G-quadruplexes and with 3'UTRs containing microRNA target sites. Overall, our data show that dysregulation of mRNA unwinding contributes to the malignant phenotype in breast cancer via preferential translation of a class of genes involved in pro-oncogenic signaling at numerous levels. Furthermore, immunohistochemical tests are promising biomarkers for tumors sensitive to anti-helicase therapies.
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Affiliation(s)
- A Modelska
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - E Turro
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
- Department of Haematology, University of Cambridge, NHS Blood and Transplant, Long Road, Cambridge CB2 0PT, UK
| | - R Russell
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - J Beaton
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - T Sbarrato
- Medical Research Council Toxicology Unit, Lancaster Road, Leicester LE1 9HN, UK
| | - K Spriggs
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - J Miller
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
| | - S Gräf
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
- Department of Haematology, University of Cambridge, NHS Blood and Transplant, Long Road, Cambridge CB2 0PT, UK
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - E Provenzano
- Cambridge Experimental Cancer Medicine Centre (ECMR) and NIHR Cambridge Biomedical Research Centre, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK
- Cambridge Breast Unit and Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge CB2 0QQ, UK
| | - F Blows
- Strangeways Research Institute, 2 Worts' Causeway, Cambridge CB1 8RN, UK
| | - P Pharoah
- Cambridge Experimental Cancer Medicine Centre (ECMR) and NIHR Cambridge Biomedical Research Centre, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK
- Strangeways Research Institute, 2 Worts' Causeway, Cambridge CB1 8RN, UK
| | - C Caldas
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
- Cambridge Experimental Cancer Medicine Centre (ECMR) and NIHR Cambridge Biomedical Research Centre, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK
| | - J Le Quesne
- Department of Oncology and Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK
- Medical Research Council Toxicology Unit, Lancaster Road, Leicester LE1 9HN, UK
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Tökés AM, Szász AM, Geszti F, Lukács LV, Kenessey I, Turányi E, Meggyesházi N, Molnár IA, Fillinger J, Soltész I, Bálint K, Hanzély Z, Arató G, Szendröi M, Kulka J. Expression of proliferation markers Ki67, cyclin A, geminin and aurora-kinase A in primary breast carcinomas and corresponding distant metastases. J Clin Pathol 2015; 68:274-82. [DOI: 10.1136/jclinpath-2014-202607] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AimsTo assess the expression of the following cell cycle regulatory proteins in primary metastatic breast carcinomas (MBCs) and on availability in matched distant metastases (DMs): Ki67, cyclin A, geminin and aurora-kinase A (aurkA); and to compare the expression of these markers in early MBC (EMBC) and late MBC separated into groups according to median time point on metastatic event occurred (28 months).MethodsThe expression of the above mentioned markers was analysed in a total of 47 primary MBCs and 59 DMs (out of which 37 were pairs) by immunohistochemistry. Fourteen breast carcinomas with no relapse over a 10-year follow-up period were utilised as control cases (CBC).ResultsAmong the MBCs, 22 metastasised to the bone, 4 to the lung and 21 to the central nervous system (CNS). Geminin (p<0.001) and Ki67 (p=0.001) were increased in the MBCs while aurkA and cyclin A showed no difference when compared with CBCs. There were no differences between aurkA, cyclin A and geminin expression in MBCs and DMs in general. Expression of Ki67 was, however, elevated (p=0.027) in DMs. In CNS metastases all markers showed elevated expression as compared to MBCs. In bone metastases, geminin was lower (p<0.001) compared with primary MBCs. In the metastases of the lung, the evaluated markers did not show different expression. According to the median follow-up until the metastatic event, Ki67 was found to be significantly elevated in EMBC (p=0.018).ConclusionsKi67 index and geminin distinguish a fraction of MBC with worse prognosis, showing increased levels in the latter in comparison to CBC being tumour-free over a 10-year follow-up period. Ki67 could possibly identify a group of MBCs that develop early DMs.
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Ramani P, Nash R, Rogers CA. Aurora kinase A is superior to Ki67 as a prognostic indicator of survival in neuroblastoma. Histopathology 2014; 66:370-9. [PMID: 25297850 DOI: 10.1111/his.12520] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 07/31/2014] [Indexed: 01/09/2023]
Abstract
AIMS To compare the expression and prognostic value of the cell cycle markers Aurora kinase A (AURKA) and Ki67 in neuroblastoma, because AURKA expression levels have greater prognostic significance than those of Ki67 in some cancers. METHODS AND RESULTS Eighty-eight neuroblastomas were immunostained with anti-AURKA and Ki67 antibodies. Digitally scanned slides were scored using imaging analysis software. Median AURKA and Ki67 proliferation indices (PIs) were 1.5% and 26%, respectively. Higher than median AURKA and Ki67 levels were detected in the neuroblastomas from patients belonging to the high-risk group, those with MYCN amplification, and those with unfavourable pathology, including a high mitosis-karyorrhexis index (MKI). High AURKA and Ki67 levels were significantly associated with shorter overall survival (OS) and event-free survival (EFS) in univariate analyses. In multivariate analyses, high AURKA level was associated with significantly shorter OS and EFS, independently of risk group, and of MYCN amplification and MKI. High Ki67 level was not associated with shorter OS or EFS after adjustment for risk group or MYCN amplification and MKI. CONCLUSIONS High AURKA and Ki67 levels were associated with adverse prognostic factors and shorter survival, but AURKA provides more valuable prognostic information than Ki67 in neuroblastoma.
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Affiliation(s)
- Pramila Ramani
- School of Cellular and Molecular Medicine, School of Medical Sciences, University of Bristol, Bristol, UK; Department of Histopathology, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
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41
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Wishart GC, Rakha E, Green A, Ellis I, Ali HR, Provenzano E, Blows FM, Caldas C, Pharoah PDP. Inclusion of KI67 significantly improves performance of the PREDICT prognostication and prediction model for early breast cancer. BMC Cancer 2014; 14:908. [PMID: 25472026 PMCID: PMC4265394 DOI: 10.1186/1471-2407-14-908] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 11/20/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND PREDICT (http://www.predict.nhs.uk) is a prognostication and treatment benefit tool for early breast cancer (EBC). The aim of this study was to incorporate the prognostic effect of KI67 status in a new version (v3), and compare performance with the Predict model that includes HER2 status (v2). METHODS The validation study was based on 1,726 patients with EBC treated in Nottingham between 1989 and 1998. KI67 positivity for PREDICT is defined as >10% of tumour cells staining positive. ROC curves were constructed for Predict models with (v3) and without (v2) KI67 input. Comparison was made using the method of DeLong. RESULTS In 1274 ER+ patients the predicted number of events at 10 years increased from 196 for v2 to 204 for v3 compared to 221 observed. The area under the ROC curve (AUC) improved from 0.7611 to 0.7676 (p=0.005) in ER+ patients and from 0.7546 to 0.7595 (p=0.0008) in all 1726 patients (ER+ and ER-). CONCLUSION Addition of KI67 to PREDICT has led to a statistically significant improvement in the model performance for ER+ patients and will aid clinical decision making in these patients. Further studies should determine whether other markers including gene expression profiling provide additional prognostic information to that provided by PREDICT.
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Affiliation(s)
- Gordon C Wishart
- />Faculty of Health, Social Care & Education, Anglia Ruskin University, Cambridge, UK
| | - Emad Rakha
- />Division of Oncology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Andrew Green
- />Division of Oncology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Ian Ellis
- />Division of Oncology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Hamid Raza Ali
- />Department of Oncology, University of Cambridge, Strangeways Research Laboratory, Worts Causeway, Cambridge, CB1 8RN UK
| | - Elena Provenzano
- />Department of Oncology, University of Cambridge, Strangeways Research Laboratory, Worts Causeway, Cambridge, CB1 8RN UK
| | - Fiona M Blows
- />Department of Oncology, University of Cambridge, Strangeways Research Laboratory, Worts Causeway, Cambridge, CB1 8RN UK
| | - Carlos Caldas
- />Department of Oncology, University of Cambridge, Strangeways Research Laboratory, Worts Causeway, Cambridge, CB1 8RN UK
| | - Paul DP Pharoah
- />Department of Oncology, University of Cambridge, Strangeways Research Laboratory, Worts Causeway, Cambridge, CB1 8RN UK
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Aradottir M, Reynisdottir ST, Stefansson OA, Jonasson JG, Sverrisdottir A, Tryggvadottir L, Eyfjord JE, Bodvarsdottir SK. Aurora A is a prognostic marker for breast cancer arising in BRCA2 mutation carriers. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2014; 1:33-40. [PMID: 27499891 PMCID: PMC4858119 DOI: 10.1002/cjp2.6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 09/07/2014] [Indexed: 12/20/2022]
Abstract
Overexpression of the Aurora A kinase has been shown to have prognostic value in breast cancer. Previously, we showed a significant association between AURKA gene amplification and BRCA2 mutation in breast cancer. The aim of this study was to assess the prognostic impact of Aurora A overexpression on breast cancer arising in BRCA2 mutation carriers. Aurora A expression was evaluated by immunohistochemistry on breast tumour tissue microarrays from 107 BRCA2 999del5 mutation carriers and 284 of sporadic origin. Prognostic value of Aurora A nuclear staining was estimated in relation to clinical markers and adjuvant treatment, using multivariate Cox's proportional hazards ratio regression model. BRCA2 wild‐type allele loss was measured by TaqMan in BRCA2 mutated tumour samples. All statistical tests were two sided. Multivariate analysis of breast cancer‐specific survival, including proliferative markers and treatment, indicated independent prognostic value of Aurora A nuclear staining for BRCA2 mutation carriers (hazards ratio = 7.06; 95% confidence interval = 1.23–40.6; p = 0.028). Poor breast cancer‐specific survival of BRCA2 mutation carriers was found to be significantly associated with combined Aurora A nuclear expression and BRCA2 wild type allele loss in tumours (p < 0.001). Multivariate analysis indicated independent prognostic value of both positive Aurora A nuclear staining (hazards ratio = 10.09; 95% confidence interval = 1.19–85.4, p = 0.034) and BRCA2 wild type allele loss (hazards ratio = 9.63; 95% confidence interval = 1.81–51.0, p = 0.008) for BRCA2 mutation carriers. Aurora A nuclear expression was found to be a significant prognostic marker for BRCA2 mutation carriers, independent of clinical parameters and adjuvant treatment. Our conclusion is that treatment benefits for BRCA2 mutation carriers and sporadic breast cancer patients with Aurora A positive tumours may be enhanced by giving attention to Aurora A targeted treatment.
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Affiliation(s)
- Margret Aradottir
- Cancer Research Laboratory, Biomedical Center, Faculty of Medicine, School of Health Sciences, University of Iceland Reykjavik Iceland
| | - Sigridur T Reynisdottir
- Cancer Research Laboratory, Biomedical Center, Faculty of Medicine, School of Health Sciences, University of Iceland Reykjavik Iceland
| | - Olafur A Stefansson
- Cancer Research Laboratory, Biomedical Center, Faculty of Medicine, School of Health Sciences, University of Iceland Reykjavik Iceland
| | - Jon G Jonasson
- Faculty of MedicineSchool of Health Sciences, University of IcelandReykjavikIceland; Icelandic Cancer RegistryIcelandic Cancer SocietyReykjavikIceland; Department of PathologyNational University HospitalReykjavikIceland
| | | | - Laufey Tryggvadottir
- Faculty of MedicineSchool of Health Sciences, University of IcelandReykjavikIceland; Icelandic Cancer RegistryIcelandic Cancer SocietyReykjavikIceland
| | - Jorunn E Eyfjord
- Cancer Research Laboratory, Biomedical Center, Faculty of Medicine, School of Health Sciences, University of Iceland Reykjavik Iceland
| | - Sigridur K Bodvarsdottir
- Cancer Research Laboratory, Biomedical Center, Faculty of Medicine, School of Health Sciences, University of Iceland Reykjavik Iceland
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Thrane S, Pedersen AM, Thomsen MBH, Kirkegaard T, Rasmussen BB, Duun-Henriksen AK, Lænkholm AV, Bak M, Lykkesfeldt AE, Yde CW. A kinase inhibitor screen identifies Mcl-1 and Aurora kinase A as novel treatment targets in antiestrogen-resistant breast cancer cells. Oncogene 2014; 34:4199-210. [DOI: 10.1038/onc.2014.351] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 09/15/2014] [Accepted: 09/23/2014] [Indexed: 02/07/2023]
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Prognostic significance of geminin expression levels in Ki67-high subset of estrogen receptor-positive and HER2-negative breast cancers. Breast Cancer 2014; 23:224-30. [PMID: 25082658 DOI: 10.1007/s12282-014-0556-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 07/14/2014] [Indexed: 02/03/2023]
Abstract
BACKGROUND Indication for chemotherapy in estrogen receptor (ER)-positive and human epidermal growth factor receptor 2 (HER2)-negative breast cancers is determined on the basis of Ki67 expression level. However, since Ki67-high cancers are not necessarily sensitive to chemotherapy, identification of such patients who do not need chemotherapy is an important issue. PATIENTS AND METHODS We used immunohistochemical staining to examine the expression levels of ER, progesterone receptor (PgR), Ki67, and geminin, a marker of S to G2/M phases, in 80 ER-positive/HER2-negative breast cancers. The labeling indices of Ki67 and geminin were determined and cutoff values were set at 15 and 6 %, respectively. RESULTS Ki67 and geminin expression levels were significantly associated with nuclear grade. In the Ki67-low subset, 26 out of 28 (92.9 %) cancers were geminin low and in the Ki67-high subset, 31 out of 52 (59.6 %) were geminin high. Distant disease-free survival (DDFS) of the geminin-high subset was significantly poorer than that of the geminin-low subset (P = 0.009). In the Ki67-low subset, only one patient showed recurrence. Metastasis was detected in eight out of 31 (25.8 %) patients in the geminin-high group of the Ki67-high subset, but no recurrence was observed in the geminin-low group of the Ki67-high subset. CONCLUSION Geminin-high breast cancers are significantly associated with worse prognosis. Since poorer prognosis was recognized only in the geminin-high group in Ki67-high cancers, we speculate that geminin may be useful for identifying patients in the Ki67-high subset who can avoid unnecessary chemotherapy.
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Takagi M, Nishiyama Y, Taguchi A, Imamoto N. Ki67 antigen contributes to the timely accumulation of protein phosphatase 1γ on anaphase chromosomes. J Biol Chem 2014; 289:22877-22887. [PMID: 25012651 DOI: 10.1074/jbc.m114.556647] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Ki67 is a protein widely used as cell-proliferation marker, with its cellular functions being hardly unveiled. In this paper, we present the direct interaction between Ki67 and PP1γ, a protein phosphatase showing characteristic accumulation on anaphase chromosomes via the canonical PP1-binding motif within Ki67. In cells depleted of Ki67, PP1γ is targeted to anaphase chromosomes less efficiently. Additionally, overexpression of Ki67, but not a mutant form without the ability to bind PP1γ, induced ectopic localization of PP1γ οn metaphase chromosomes. These observations demonstrate that Ki67 is one factor that defines the cellular behavior of PP1γ in anaphase. To explore the specific roles of the subset of PP1γ recruited on chromosome via its interaction with Ki67 (PP1γ-Ki67), endogenous Ki67 was replaced with a Ki67 mutant deficient in its ability to interact with PP1γ. Although no obvious defects in the progression of mitosis were observed, the timing of dephosphorylation of the mutant Ki67 in anaphase was delayed, indicating that Ki67 itself is one of the substrates of PP1γ-Ki67.
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Affiliation(s)
- Masatoshi Takagi
- Cellular Dynamics Laboratory, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Yuko Nishiyama
- Cellular Dynamics Laboratory, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Atsuko Taguchi
- Cellular Dynamics Laboratory, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Naoko Imamoto
- Cellular Dynamics Laboratory, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan.
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Sueta A, Yamamoto Y, Hayashi M, Yamamoto S, Inao T, Ibusuki M, Murakami K, Iwase H. Clinical significance of pretherapeutic Ki67 as a predictive parameter for response to neoadjuvant chemotherapy in breast cancer; is it equally useful across tumor subtypes? Surgery 2014; 155:927-35. [DOI: 10.1016/j.surg.2014.01.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 01/31/2014] [Indexed: 12/22/2022]
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Le Loarer F, Zhang L, Fletcher CD, Ribeiro A, Singer S, Italiano A, Neuville A, Houlier A, Chibon F, Coindre JM, Antonescu CR. Consistent SMARCB1 homozygous deletions in epithelioid sarcoma and in a subset of myoepithelial carcinomas can be reliably detected by FISH in archival material. Genes Chromosomes Cancer 2014; 53:475-86. [PMID: 24585572 DOI: 10.1002/gcc.22159] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 02/09/2014] [Indexed: 12/19/2022] Open
Abstract
Epithelioid sarcomas (ES) are mesenchymal neoplasms subclassified into distal and proximal subtypes based on their distinct clinical presentations and histologic features. Consistent loss of SMARCB1 nuclear expression has been considered as the hallmark abnormality for both subtypes, a feature shared with atypical teratoid/rhabdoid tumor of infancy (ATRT). While virtually all ATRTs harbor underlying SMARCB1 somatic or germline alterations, mechanisms of SMARCB1 inactivation in ES are less well defined. To further define mechanisms of SMARCB1 inactivation a detailed molecular analysis was performed on 40 ES (25 proximal and 15 distal ES, with classic morphology and negative SMARCB1 expression) for their genomic status of SMARCB1 and related genes encoding the SWI/SNF subunits (PBRM1, BRG1, BRM, SMARCC1/2 and ARID1A) by FISH using custom BAC probes. An additional control group was included spanning a variety of 41 soft tissue neoplasms with either rhabdoid/epithelioid features or selected histotypes previously shown to lack SMARCB1 by IHC. Furthermore, 12 ES were studied by array CGH (aCGH) and an independent TMA containing 50 additional ES cases was screened for Aurora Kinase A (AURKA) and cyclin D1 immunoexpression. Homozygous SMARCB1 deletions were found by FISH in 36/40 ES (21/25 proximal-type). One of the distal-type ES displayed homozygous SMARCB1 deletion in the tumor cells, along with a heterozygous deletion within normal tissue, finding confirmed by array CGH. None of the proximal ES lacking homozygous SMARCB1 deletions displayed alterations in other SWI/SNF subunits gene members. Among controls, only the SMARCB1-immunonegative myoepithelial carcinomas displayed SMARCB1 homozygous deletions in 3/5 cases, while no gene specific abnormalities were seen among all other histologic subtypes of sarcomas tested regardless of the SMARCB1 protein status. There was no consistent pattern of AURKA and Cyclin D1 expression. The array CGH was successful in 9/12 ES, confirming the SMARCB1 and other SWI/SNF genes copy numbers detected by FISH. Our study confirms the shared pathogenesis of proximal and distal ES, showing consistent SMARCB1 homozygous deletions. Additionally we report the first ES case associated with a SMARCB1 constitutional deletion, establishing a previously undocumented link with ATRT. Alternative mechanisms of SMARCB1 inactivation in SMARCB1-disomic ES remain to be identified, but appear unrelated to large genomic abnormalities in other SWI/SNF subunits.
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Affiliation(s)
- Francois Le Loarer
- Pathology Department, Memorial Sloan-Kettering Cancer Center, New York, NY; Pathology Department, Institut Bergonié Cancer Center, Bordeaux, France
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Baldini E, D'Armiento M, Ulisse S. A new aurora in anaplastic thyroid cancer therapy. Int J Endocrinol 2014; 2014:816430. [PMID: 25097550 PMCID: PMC4106108 DOI: 10.1155/2014/816430] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 06/11/2014] [Indexed: 01/08/2023] Open
Abstract
Anaplastic thyroid cancers (ATC) are among the most aggressive human neoplasms with a dire prognosis and a median survival time of few months from the diagnosis. The complete absence of effective therapies for ATC renders the identification of novel therapeutic approaches sorely needed. Chromosomal instability, a feature of all human cancers, is thought to represent a major driving force in thyroid cancer progression and a number of mitotic kinases showing a deregulated expression in malignant thyroid tissues are now held responsible for thyroid tumor aneuploidy. These include the three members of the Aurora family (Aurora-A, Aurora-B, and Aurora-C), serine/threonine kinases that regulate multiple aspects of chromosome segregation and cytokinesis. Over the last few years, several small molecule inhibitors targeting Aurora kinases were developed, which showed promising antitumor effects against a variety of human cancers, including ATC, in preclinical studies. Several of these molecules are now being evaluated in phase I/II clinical trials against advanced solid and hematological malignancies. In the present review we will describe the structure, expression, and mitotic functions of the Aurora kinases, their implications in human cancer progression, with particular regard to ATC, and the effects of their functional inhibition on malignant cell proliferation.
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Affiliation(s)
- Enke Baldini
- Department of Experimental Medicine, “Sapienza” University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Massimino D'Armiento
- Department of Experimental Medicine, “Sapienza” University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Salvatore Ulisse
- Department of Experimental Medicine, “Sapienza” University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
- *Salvatore Ulisse:
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Markant SL, Esparza LA, Sun J, Barton KL, McCoig LM, Grant GA, Crawford JR, Levy ML, Northcott PA, Shih D, Remke M, Taylor MD, Wechsler-Reya RJ. Targeting sonic hedgehog-associated medulloblastoma through inhibition of Aurora and Polo-like kinases. Cancer Res 2013; 73:6310-22. [PMID: 24067506 PMCID: PMC3800039 DOI: 10.1158/0008-5472.can-12-4258] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Medulloblastoma is the most common malignant brain tumor in children. Although aggressive surgery, radiation, and chemotherapy have improved outcomes, survivors suffer severe long-term side effects, and many patients still succumb to their disease. For patients whose tumors are driven by mutations in the sonic hedgehog (SHH) pathway, SHH antagonists offer some hope. However, many SHH-associated medulloblastomas do not respond to these drugs, and those that do may develop resistance. Therefore, more effective treatment strategies are needed for both SHH and non-SHH-associated medulloblastoma. One such strategy involves targeting the cells that are critical for maintaining tumor growth, known as tumor-propagating cells (TPC). We previously identified a population of TPCs in tumors from patched mutant mice, a model for SHH-dependent medulloblastoma. These cells express the surface antigen CD15/SSEA-1 and have elevated levels of genes associated with the G2-M phases of the cell cycle. Here, we show that CD15(+) cells progress more rapidly through the cell cycle than CD15(-) cells and contain an increased proportion of cells in G2-M, suggesting that they might be vulnerable to inhibitors of this phase. Indeed, exposure of tumor cells to inhibitors of Aurora kinase (Aurk) and Polo-like kinases (Plk), key regulators of G2-M, induces cell-cycle arrest, apoptosis, and enhanced sensitivity to conventional chemotherapy. Moreover, treatment of tumor-bearing mice with these agents significantly inhibits tumor progression. Importantly, cells from human patient-derived medulloblastoma xenografts are also sensitive to Aurk and Plk inhibitors. Our findings suggest that targeting G2-M regulators may represent a novel approach for treatment of human medulloblastoma.
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Affiliation(s)
- Shirley L. Markant
- Tumor Development Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, CA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA
- Department of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, NC
| | - Lourdes Adriana Esparza
- Tumor Development Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, CA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA
| | - Jesse Sun
- Department of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, NC
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care; Duke University Medical Center, Durham, NC
| | - Kelly L. Barton
- Department of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, NC
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Duke University Medical Center, Durham, NC
| | - Lisa M. McCoig
- Department of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, NC
| | - Gerald A. Grant
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Duke University Medical Center, Durham, NC
- Department of Surgery, Duke University Medical Center, Durham, NC
| | - John R. Crawford
- Department of Pediatrics, University of California San Diego, La Jolla, CA
- Department of Neurosciences, University of California San Diego, La Jolla, CA
- Rady Children’s Hospital, San Diego, CA
| | - Michael L. Levy
- Department of Neurosurgery, University of California San Diego, La Jolla, CA
- Rady Children’s Hospital, San Diego, CA
| | - Paul A. Northcott
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
| | - David Shih
- Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
| | - Marc Remke
- Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
| | - Michael D. Taylor
- Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
| | - Robert J. Wechsler-Reya
- Tumor Development Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, CA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA
- Department of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, NC
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50
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Bertucci F, Bouvier-Labit C, Finetti P, Metellus P, Adelaide J, Mokhtari K, Figarella-Branger D, Decouvelaere AV, Miquel C, Coindre JM, Birnbaum D. Gene expression profiling of solitary fibrous tumors. PLoS One 2013; 8:e64497. [PMID: 23734203 PMCID: PMC3667191 DOI: 10.1371/journal.pone.0064497] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 04/15/2013] [Indexed: 12/12/2022] Open
Abstract
Background Solitary fibrous tumors (SFTs) are rare spindle-cell tumors. Their cell-of-origin and molecular basis are poorly known. They raise several clinical problems. Differential diagnosis may be difficult, prognosis is poorly apprehended by histoclinical features, and no effective therapy exists for advanced stages. Methods We profiled 16 SFT samples using whole-genome DNA microarrays and analyzed their expression profiles with publicly available profiles of 36 additional SFTs and 212 soft tissue sarcomas (STSs). Immunohistochemistry was applied to validate the expression of some discriminating genes. Results SFTs displayed whole-genome expression profiles more homogeneous and different from STSs, but closer to genetically-simple than genetically-complex STSs. The SFTs/STSs comparison identified a high percentage (∼30%) of genes as differentially expressed, most of them without any DNA copy number alteration. One of the genes most overexpressed in SFTs encoded the ALDH1 stem cell marker. Several upregulated genes and associated ontologies were also related to progenitor/stem cells. SFTs also overexpressed genes encoding therapeutic targets such as kinases (EGFR, ERBB2, FGFR1, JAK2), histone deacetylases, or retinoic acid receptors. Their overexpression was found in all SFTs, regardless the anatomical location. Finally, we identified a 31-gene signature associated with the mitotic count, containing many genes related to cell cycle/mitosis, including AURKA. Conclusion We established a robust repertoire of genes differentially expressed in SFTs. Certain overexpressed genes could provide new diagnostic (ALDH1A1), prognostic (AURKA) and/or therapeutic targets.
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Affiliation(s)
- François Bertucci
- Département d'Oncologie Moléculaire, Centre de Recherche en Cancérologie de Marseille (CRCM), Institut Paoli-Calmettes (IPC), UMR1068 Inserm; Marseille, France
- Département d'Oncologie Médicale, IPC, CRCM, UMR1068 Inserm, Marseille, France
- Faculté de Médecine, Aix-Marseille Université, Marseille, France
- * E-mail:
| | - Corinne Bouvier-Labit
- Faculté de Médecine, Aix-Marseille Université, Marseille, France
- Département d’Anatomopathologie, Hôpital de la Timone, Marseille, France
| | - Pascal Finetti
- Département d'Oncologie Moléculaire, Centre de Recherche en Cancérologie de Marseille (CRCM), Institut Paoli-Calmettes (IPC), UMR1068 Inserm; Marseille, France
| | - Philippe Metellus
- Faculté de Médecine, Aix-Marseille Université, Marseille, France
- Département de Neurochirurgie, Hôpital de la Timone, Marseille, France
| | - José Adelaide
- Département d'Oncologie Moléculaire, Centre de Recherche en Cancérologie de Marseille (CRCM), Institut Paoli-Calmettes (IPC), UMR1068 Inserm; Marseille, France
| | - Karima Mokhtari
- Département de Neuropathologie, Hôpital Pitié Salpétrière, Paris, France
| | - Dominique Figarella-Branger
- Faculté de Médecine, Aix-Marseille Université, Marseille, France
- Département d’Anatomopathologie, Hôpital de la Timone, Marseille, France
| | | | - Catherine Miquel
- Département de Neuropathologie, Hôpital Sainte Anne, Paris, France
| | | | - Daniel Birnbaum
- Département d'Oncologie Moléculaire, Centre de Recherche en Cancérologie de Marseille (CRCM), Institut Paoli-Calmettes (IPC), UMR1068 Inserm; Marseille, France
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