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Finkelman BS, Zhang H, Hicks DG, Turner BM. The Evolution of Ki-67 and Breast Carcinoma: Past Observations, Present Directions, and Future Considerations. Cancers (Basel) 2023; 15:cancers15030808. [PMID: 36765765 PMCID: PMC9913317 DOI: 10.3390/cancers15030808] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 01/31/2023] Open
Abstract
The 1983 discovery of a mouse monoclonal antibody-the Ki-67 antibody-that recognized a nuclear antigen present only in proliferating cells represented a seminal discovery for the pathologic assessment of cellular proliferation in breast cancer and other solid tumors. Cellular proliferation is a central determinant of prognosis and response to cytotoxic chemotherapy in patients with breast cancer, and since the discovery of the Ki-67 antibody, Ki-67 has evolved as an important biomarker with both prognostic and predictive potential in breast cancer. Although there is universal recognition among the international guideline recommendations of the value of Ki-67 in breast cancer, recommendations for the actual use of Ki-67 assays in the prognostic and predictive evaluation of breast cancer remain mixed, primarily due to the lack of assay standardization and inconsistent inter-observer and inter-laboratory reproducibility. The treatment of high-risk ER-positive/human epidermal growth factor receptor-2 (HER2) negative breast cancer with the recently FDA-approved drug abemaciclib relies on a quantitative assessment of Ki-67 expression in the treatment decision algorithm. This further reinforces the urgent need for standardization of Ki-67 antibody selection and staining interpretation, which will hopefully lead to multidisciplinary consensus on the use of Ki-67 as a prognostic and predictive marker in breast cancer. The goals of this review are to highlight the historical evolution of Ki-67 in breast cancer, summarize the present literature on Ki-67 in breast cancer, and discuss the evolving literature on the use of Ki-67 as a companion diagnostic biomarker in breast cancer, with consideration for the necessary changes required across pathology practices to help increase the reliability and widespread adoption of Ki-67 as a prognostic and predictive marker for breast cancer in clinical practice.
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Kalinkova L, Nikolaieva N, Smolkova B, Ciernikova S, Kajo K, Bella V, Kajabova VH, Kosnacova H, Minarik G, Fridrichova I. miR-205-5p Downregulation and ZEB1 Upregulation Characterize the Disseminated Tumor Cells in Patients with Invasive Ductal Breast Cancer. Int J Mol Sci 2021; 23:ijms23010103. [PMID: 35008529 PMCID: PMC8744876 DOI: 10.3390/ijms23010103] [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: 11/30/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/31/2022] Open
Abstract
Background: Dissemination of breast cancer (BC) cells through the hematogenous or lymphogenous vessels leads to metastatic disease in one-third of BC patients. Therefore, we investigated the new prognostic features for invasion and metastasis. Methods: We evaluated the expression of miRNAs and epithelial-to-mesenchymal transition (EMT) genes in relation to CDH1/E-cadherin changes in samples from 31 patients with invasive ductal BC including tumor centrum (TU-C), tumor invasive front (TU-IF), lymph node metastasis (LNM), and CD45-depleted blood (CD45-DB). Expression of miRNA and mRNA was quantified by RT-PCR arrays and associations with clinico-pathological characteristics were statistically evaluated by univariate and multivariate analysis. Results: We did not verify CDH1 regulating associations previously described in cell lines. However, we did detect extremely high ZEB1 expression in LNMs from patients with distant metastasis, but without regulation by miR-205-5p. Considering the ZEB1 functions, this overexpression indicates enhancement of metastatic potential of lymphogenously disseminated BC cells. In CD45-DB samples, downregulated miR-205-5p was found in those expressing epithelial and/or mesenchymal markers (CTC+) that could contribute to insusceptibility and survival of hematogenously disseminated BC cells mediated by increased expression of several targets including ZEB1. Conclusions: miR-205-5p and potentially ZEB1 gene are promising candidates for markers of metastatic potential in ductal BC.
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Affiliation(s)
- Lenka Kalinkova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (L.K.); (N.N.); (S.C.); (K.K.); (H.K.)
| | - Nataliia Nikolaieva
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (L.K.); (N.N.); (S.C.); (K.K.); (H.K.)
| | - Bozena Smolkova
- Department of Molecular Oncology, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (B.S.); (V.H.K.)
| | - Sona Ciernikova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (L.K.); (N.N.); (S.C.); (K.K.); (H.K.)
| | - Karol Kajo
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (L.K.); (N.N.); (S.C.); (K.K.); (H.K.)
- Department of Pathology, St. Elisabeth Cancer Institute, 81250 Bratislava, Slovakia
| | - Vladimir Bella
- Department of Senology, St. Elisabeth Cancer Institute, 81250 Bratislava, Slovakia;
| | - Viera Horvathova Kajabova
- Department of Molecular Oncology, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (B.S.); (V.H.K.)
| | - Helena Kosnacova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (L.K.); (N.N.); (S.C.); (K.K.); (H.K.)
| | - Gabriel Minarik
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, 81108 Bratislava, Slovakia;
| | - Ivana Fridrichova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, 84505 Bratislava, Slovakia; (L.K.); (N.N.); (S.C.); (K.K.); (H.K.)
- Correspondence: ; Tel.: +421-02-32295188
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Ki-67 as a Prognostic Biomarker in Invasive Breast Cancer. Cancers (Basel) 2021; 13:cancers13174455. [PMID: 34503265 PMCID: PMC8430879 DOI: 10.3390/cancers13174455] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary In breast cancer development, the expression of Ki-67 is strongly associated with cancer proliferation and is a known indicator of prognosis and outcome. Ki-67 expression levels are also useful to inform treatment decision making in some cases. As a result, routine measurement of Ki-67 is now widely performed during pathological tumour evaluation. However, the Ki-67 appraisal is not without its limitations and shortcomings—the aim of this study was to provide an overview of Ki-67 use in the clinical setting, the current challenges associated with its measurement, and the novel strategies that will hopefully enhance Ki-67 proliferation indices for prospective breast cancer patients. Abstract The advent of molecular medicine has transformed breast cancer management. Breast cancer is now recognised as a heterogenous disease with varied morphology, molecular features, tumour behaviour, and response to therapeutic strategies. These parameters are underpinned by a combination of genomic and immunohistochemical tumour factors, with estrogen receptor (ER) status, progesterone receptor (PgR) status, human epidermal growth factor receptor-2 (HER2) status, Ki-67 proliferation indices, and multigene panels all playing a contributive role in the substratification, prognostication and personalization of treatment modalities for each case. The expression of Ki-67 is strongly linked to tumour cell proliferation and growth and is routinely evaluated as a proliferation marker. This review will discuss the clinical utility, current pitfalls, and promising strategies to augment Ki-67 proliferation indices in future breast oncology.
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Zubor P, Kubatka P, Dankova Z, Gondova A, Kajo K, Hatok J, Samec M, Jagelkova M, Krivus S, Holubekova V, Bujnak J, Laucekova Z, Zelinova K, Stastny I, Nachajova M, Danko J, Golubnitschaja O. miRNA in a multiomic context for diagnosis, treatment monitoring and personalized management of metastatic breast cancer. Future Oncol 2018; 14:1847-1867. [DOI: 10.2217/fon-2018-0061] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Metastatic breast cancer is characterized by aggressive spreading to distant organs. Despite huge multilevel research, there are still several important challenges that have to be clarified in the management of this disease. Therefore, recent investigations have implemented a modern, multiomic approach with the aim of identifying specific biomarkers for not only early detection but also to predict treatment responses and metastatic spread. Specific attention is paid to short miRNAs, which regulate gene expression at the post-transcriptional level. Aberrant miRNA expression could initiate cancer development, cell proliferation, invasion, migration, metastatic spread or drug resistance. An miRNA signature is, therefore, believed to be a promising biomarker and prediction tool that could be utilized in all phases of carcinogenesis. This article offers comprehensive information about miRNA profiles useful for diagnostic and treatment purposes that may sufficiently advance breast cancer management and improve individual outcomes in the near future.
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Affiliation(s)
- Pavol Zubor
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Peter Kubatka
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Zuzana Dankova
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Alexandra Gondova
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
| | - Karol Kajo
- Department of Pathology, St Elizabeth Cancer Institute Hospital, Bratislava, Slovak Republic
- Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Jozef Hatok
- Department of Medical Biochemistry, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Marek Samec
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Marianna Jagelkova
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Stefan Krivus
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
| | - Veronika Holubekova
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Jan Bujnak
- Department of Obstetrics & Gynecology, Kukuras Michalovce Hospital, Michalovce, Slovak Republic
- Oncogynecology Unit, Penta Hospitals International, Svet Zdravia, Michalovce, Slovak Republic
| | - Zuzana Laucekova
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
| | - Katarina Zelinova
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Igor Stastny
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
- Biomedical Center Martin, Division of Oncology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovak Republic
| | - Marcela Nachajova
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
| | - Jan Danko
- Department of Obstetrics & Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovak Republic
| | - Olga Golubnitschaja
- Radiological Clinic, Rheinische Friedrich-Wilhelms-University of Bonn, Bonn, Germany
- Breast Cancer Research Center, Rheinische Friedrich-Wilhelms-University of Bonn, Bonn, Germany
- Center for Integrated Oncology, Cologne-Bonn, Rheinische Friedrich-Wilhelms-University of Bonn, Bonn, Germany
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Sárközy M, Kahán Z, Csont T. A myriad of roles of miR-25 in health and disease. Oncotarget 2018; 9:21580-21612. [PMID: 29765562 PMCID: PMC5940376 DOI: 10.18632/oncotarget.24662] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 01/30/2018] [Indexed: 02/06/2023] Open
Abstract
Small non-coding RNAs including microRNAs (miRNAs) have been recently recognized as important regulators of gene expression. MicroRNAs play myriads of roles in physiological processes as well as in the pathogenesis of a number of diseases by translational repression or mRNA destabilization of numerous target genes. The miR-106b-25 cluster is highly conserved in vertebrates and consists of three members including miR-106b, miR-93 and miR-25. MiR-106b and miR-93 share the same seed sequences; however, miR-25 has only a similar seed sequence resulting in different predicted target mRNAs. In this review, we specifically focus on the role of miR-25 in healthy and diseased conditions. Many of miR-25 target mRNAs are involved in biological processes such as cell proliferation, differentiation, and migration, apoptosis, oxidative stress, inflammation, calcium handling, etc. Therefore, it is no surprise that miR-25 has been reported as a key regulator of common cancerous and non-cancerous diseases. MiR-25 plays an important role in the pathogenesis of acute myocardial infarction, left ventricular hypertrophy, heart failure, diabetes mellitus, diabetic nephropathy, tubulointerstitial nephropathy, asthma bronchiale, cerebral ischemia/reperfusion injury, neurodegenerative diseases, schizophrenia, multiple sclerosis, etc. MiR-25 is also a well-described oncogenic miRNA playing a crucial role in the development of many tumor types including brain tumors, lung, breast, ovarian, prostate, thyroid, oesophageal, gastric, colorectal, hepatocellular cancers, etc. In this review, our aim is to discuss the translational therapeutic role of miR-25 in common diseased conditions based on relevant basic research and clinical studies.
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Affiliation(s)
- Márta Sárközy
- Department of Biochemistry, Faculty of Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Zsuzsanna Kahán
- Department of Oncotherapy, Faculty of Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Tamás Csont
- Department of Biochemistry, Faculty of Medicine, University of Szeged, H-6720 Szeged, Hungary
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Taslim C, Weng DY, Brasky TM, Dumitrescu RG, Huang K, Kallakury BVS, Krishnan S, Llanos AA, Marian C, McElroy J, Schneider SS, Spear SL, Troester MA, Freudenheim JL, Geyer S, Shields PG. Discovery and replication of microRNAs for breast cancer risk using genome-wide profiling. Oncotarget 2018; 7:86457-86468. [PMID: 27833082 PMCID: PMC5349926 DOI: 10.18632/oncotarget.13241] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 10/22/2016] [Indexed: 01/06/2023] Open
Abstract
Background Genome-wide miRNA expression may be useful for predicting breast cancer risk and/or for the early detection of breast cancer. Results A 41-miRNA model distinguished breast cancer risk in the discovery study (accuracy of 83.3%), which was replicated in the independent study (accuracy = 63.4%, P=0.09). Among the 41 miRNA, 20 miRNAs were detectable in serum, and predicted breast cancer occurrence within 18 months of blood draw (accuracy 53%, P=0.06). These risk-related miRNAs were enriched for HER-2 and estrogen-dependent breast cancer signaling. Materials and Methods MiRNAs were assessed in two cross-sectional studies of women without breast cancer and a nested case-control study of breast cancer. Using breast tissues, a multivariate analysis was used to model women with high and low breast cancer risk (based upon Gail risk model) in a discovery study of women without breast cancer (n=90), and applied to an independent replication study (n=71). The model was then assessed using serum samples from the nested case-control study (n=410). Conclusions Studying breast tissues of women without breast cancer revealed miRNAs correlated with breast cancer risk, which were then found to be altered in the serum of women who later developed breast cancer. These results serve as proof-of-principle that miRNAs in women without breast cancer may be useful for predicting breast cancer risk and/or as an adjunct for breast cancer early detection. The miRNAs identified herein may be involved in breast carcinogenic pathways because they were first identified in the breast tissues of healthy women.
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Affiliation(s)
- Cenny Taslim
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Daniel Y Weng
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Theodore M Brasky
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | | | - Kun Huang
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | | | - Shiva Krishnan
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Adana A Llanos
- Department of Epidemiology, Rutgers University, New Brunswick, NJ, USA
| | - Catalin Marian
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.,Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Joseph McElroy
- Center for Biostatistics, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | | | - Scott L Spear
- Department of Plastic Surgery, Georgetown University Hospital, Washington, DC, USA
| | - Melissa A Troester
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jo L Freudenheim
- Departement of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Susan Geyer
- Health Informatics Institute, University of South Florida, Tampa, FL, USA
| | - Peter G Shields
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
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Tivnan A, Heilinger T, Ramsey JM, O'Connor G, Pokorny JL, Sarkaria JN, Stringer BW, Day BW, Boyd AW, Kim EL, Lode HN, Cryan SA, Prehn JHM. Anti-GD2-ch14.18/CHO coated nanoparticles mediate glioblastoma (GBM)-specific delivery of the aromatase inhibitor, Letrozole, reducing proliferation, migration and chemoresistance in patient-derived GBM tumor cells. Oncotarget 2017; 8:16605-16620. [PMID: 28178667 PMCID: PMC5369988 DOI: 10.18632/oncotarget.15073] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 01/16/2017] [Indexed: 12/23/2022] Open
Abstract
Aromatase is a critical enzyme in the irreversible conversion of androgens to oestrogens, with inhibition used clinically in hormone-dependent malignancies. We tested the hypothesis that targeted aromatase inhibition in an aggressive brain cancer called glioblastoma (GBM) may represent a new treatment strategy. In this study, aromatase inhibition was achieved using third generation inhibitor, Letrozole, encapsulated within the core of biodegradable poly lactic-co-glycolic acid (PLGA) nanoparticles (NPs). PLGA-NPs were conjugated to human/mouse chimeric anti-GD2 antibody ch14.18/CHO, enabling specific targeting of GD2-positive GBM cells. Treatment of primary and recurrent patient-derived GBM cells with free-Letrozole (0.1 μM) led to significant decrease in cell proliferation and migration; in addition to reduced spheroid formation. Anti-GD2-ch14.18/CHO-NPs displayed specific targeting of GBM cells in colorectal-glioblastoma co-culture, with subsequent reduction in GBM cell numbers when treated with anti-GD2-ch14.18-PLGA-Let-NPs in combination with temozolomide. As miR-191 is an estrogen responsive microRNA, its expression, fluctuation and role in Letrozole treated GBM cells was evaluated, where treatment with premiR-191 was capable of rescuing the reduced proliferative phenotype induced by aromatase inhibitor. The repurposing and targeted delivery of Letrozole for the treatment of GBM, with the potential role of miR-191 identified, provides novel avenues for target assessment in this aggressive brain cancer.
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Affiliation(s)
- Amanda Tivnan
- Centre for Systems Medicine, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York House, Dublin 2, Ireland
| | - Tatjana Heilinger
- Centre for Systems Medicine, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York House, Dublin 2, Ireland.,IMC Fachhochschule Krems, University of Applied Sciences, Krems, Austria
| | - Joanne M Ramsey
- School of Pharmacy, Royal College of Surgeons in Ireland, York House, Dublin 2, Ireland & Tissue Engineering Research Group, Department of Anatomy, RCSI and Centre for Research in Medical Devices (CURAM), NUIG, Ireland
| | - Gemma O'Connor
- School of Pharmacy, Royal College of Surgeons in Ireland, York House, Dublin 2, Ireland & Tissue Engineering Research Group, Department of Anatomy, RCSI and Centre for Research in Medical Devices (CURAM), NUIG, Ireland
| | - Jenny L Pokorny
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, United States of America.,Department of Neurosurgery, Stanford University, Stanford, CA 94305, USA
| | - Jann N Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, United States of America
| | - Brett W Stringer
- Brain Cancer Research Unit, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Bryan W Day
- Brain Cancer Research Unit, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Andrew W Boyd
- Brain Cancer Research Unit, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Ella L Kim
- Laboratory of Neurooncology, Department of Neurosurgery, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Holger N Lode
- Department of Paediatrics and Paediatric Haematology/Oncology, University of Greifswald, Greifswald, Germany
| | - Sally-Ann Cryan
- School of Pharmacy, Royal College of Surgeons in Ireland, York House, Dublin 2, Ireland & Tissue Engineering Research Group, Department of Anatomy, RCSI and Centre for Research in Medical Devices (CURAM), NUIG, Ireland
| | - Jochen H M Prehn
- Centre for Systems Medicine, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York House, Dublin 2, Ireland
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Mao L, Sun AJ, Wu JZ, Tang JH. Involvement of microRNAs in HER2 signaling and trastuzumab treatment. Tumour Biol 2016; 37:10.1007/s13277-016-5405-3. [PMID: 27734339 DOI: 10.1007/s13277-016-5405-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 09/13/2016] [Indexed: 12/21/2022] Open
Abstract
The prognostic value of HER2 has been demonstrated in many human cancer types such us breast cancer, gastric cancer and ovarian cancer. Trastuzumab is the first anti-HER2 monoclonal antibody that has remarkably improved outcomes of patients with HER2-positive breast cancer. For HER2-positive metastatic gastric cancers, the addition of trastuzumab to traditional chemotherapy also significantly prolonged overall survival. However, intrinsic and acquired resistance to trastuzumab is common and results in disease progression. HER2 signaling network and mechanisms underlying the resistance have been broadly investigated in order to develop strategy to overcome the dilemma. Increasing evidence indicates that microRNAs (miRNA), a group of small non-coding RNAs, are involved in HER2 signaling and trastuzumab treatment. This review summarizes all the miRNAs that target HER2 and describes their activity on biological processes. Moreover, miRNAs that regulate trastuzumab resistance and relevant molecular mechanisms are highlighted. MiRNA signatures associated with HER2, miRNAs that mediate trastuzumab activity, and potential miRNA biomarkers of trastuzumab sensitivity are also discussed.
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Affiliation(s)
- Ling Mao
- Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, Jiangsu, China
- Department of Thyroid and Breast Surgery, Huai'an Second People's Hospital, Xuzhou medical university, Huai'an, China
| | - Ai-Jun Sun
- Department of Thyroid and Breast Surgery, Huai'an Second People's Hospital, Xuzhou medical university, Huai'an, China
| | - Jian-Zhong Wu
- Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, Jiangsu, China
| | - Jin-Hai Tang
- Department of General Surgery, the Affiliated Jiangsu Cancer Hospital, Nanjing Medical University, 42Bai Zi Ting Road, Nanjing, Jiangsu, 210000, China.
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Jinling W, Sijing S, Jie Z, Guinian W. Prognostic value of circulating microRNA-21 for breast cancer: a systematic review and meta-analysis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:1-6. [PMID: 27684463 DOI: 10.1080/21691401.2016.1216856] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND There is an urgent need for novel noninvasive prognostic molecular tumor marker for monitoring the recurrence of breast cancer. MicroRNA-21 (miR-21) play a crucial role in the progression and aggressiveness of breast cancer, but its prognostic significance for patients with breast cancer remains inconclusive. The aim of this meta-analysis is to summarize the role of circulating miR-21 as a molecular marker in patients with breast cancer. MATERIAL AND METHODS Eligible studies were searched from the PubMed, EMBASE and Web of Science databases. The χ2 and I2 tests were used to evaluate heterogeneity between studies. The pooled hazard ratios (HR) with 95% confidence interval (CI) were calculated by a fixed-effects model, if no heterogeneity existed. If there was heterogeneity, a random-effects model was applied. The meta-analysis was conducted using the Review Manager 5 software. RESULTS A total of 7 articles which included 1629 cases were selected for the meta-analysis. Elevated miR-21 expression was significantly predictive of poor overall survival (HR = 1.51, 95%CI 1.15-1.98, p = 0.003). The subgroup analysis consisted of in tissue sample (HR = 1.66, 95%CI 1.03-2.67, p = 0.04) and serum sample (HR = 1.73, 95%CI 1.22-2.46, p = 0.002). The association between miR-21 expression level and lymph node metastasis was statistically significant (OR = 2.36, 95%CI 1.04-4.78, p = 0.03). CONCLUSION Our findings suggest that the circulating miR-21 expression level can predict poor prognosis in patients with breast cancer.
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Affiliation(s)
- Wang Jinling
- a Department of Laboratory Medicine , the First Hospital of Zibo City , Shandong , China
| | - Sun Sijing
- b Department of Breast Surgery , the First Hospital of Zibo City , Shandong , China
| | - Zhang Jie
- c Department of Clinical Laboratory , Qilu Medical University , Shangdong , China
| | - Wang Guinian
- a Department of Laboratory Medicine , the First Hospital of Zibo City , Shandong , China
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McNamara KM, Guestini F, Sakurai M, Kikuchi K, Sasano H. How far have we come in terms of estrogens in breast cancer? [Review]. Endocr J 2016; 63:413-24. [PMID: 27020038 DOI: 10.1507/endocrj.ej16-0022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Major advances in breast cancer treatment have almost always been linked to the actions of estrogen. Therefore, this review focused on estrogen actions in the breast, particularly the developments of the past 20 years, the present understanding of disease biology and possible future developments. Within these areas have focused on what is known about the underlying molecular biology and in particular integration of the bioinformatics revolution of the last 15 years with other facets of research. In addition, there will be an emphasis on the understanding brought about by a greater appreciation for the intracrinology of the breast.
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Affiliation(s)
- Keely May McNamara
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
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Liu B, Tian Y, Li F, Zhao Z, Jiang X, Zhai C, Han X, Zhang L. Tumor-suppressing roles of miR-214 and miR-218 in breast cancer. Oncol Rep 2016; 35:3178-84. [PMID: 27109339 PMCID: PMC4869936 DOI: 10.3892/or.2016.4749] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 01/13/2016] [Indexed: 01/02/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that are key post-transcriptional regulators of gene expression. MicroRNA-214 (miR-214) and microRNA-218 (miR-218) have shown the function of tumor suppressors in various types of human cancers. However, the biological functions of miR-214 and miR-218 in breast cancer have not been elucidated completely. The present study evaluated the expression and biological function of miR-214 and miR-218 in human breast cancer. Our results revealed that the expression of miR-214 and miR-218 were significantly decreased in breast cancer tissues compared with adjacent tissues. The aberrant expression of miR-214 and miR-218 were negatively associated with Ki-67, and the miR-218 expression was positively associated with progesterone receptor (PR) in breast cancer tissues. In vitro, the cell proliferation and migration were decreased, cell apoptosis was induced, and cell cycle was also disturbed in miR-214 or miR-218 overexpressed breast cancer cells. Our results demonstrated that miR-214 and miR-218 function as tumor suppressors in breast cancer, and may become biomarkers and potential therapeutic targets in breast cancer.
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Affiliation(s)
- Bo Liu
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
| | - Yanfeng Tian
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
| | - Fang Li
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
| | - Zengren Zhao
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
| | - Xia Jiang
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
| | - Congjie Zhai
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
| | - Xiaodong Han
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
| | - Like Zhang
- Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050031, P.R. China
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