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Geng W, Thomas H, Chen Z, Yan Z, Zhang P, Zhang M, Huang W, Ren X, Wang Z, Ding K, Zhang J. Mechanisms of acquired resistance to HER2-Positive breast cancer therapies induced by HER3: A comprehensive review. Eur J Pharmacol 2024; 977:176725. [PMID: 38851563 DOI: 10.1016/j.ejphar.2024.176725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/15/2024] [Accepted: 06/05/2024] [Indexed: 06/10/2024]
Abstract
Receptor tyrosine kinases (RTKs) are cell surface receptors with kinase activity that play a crucial role in diverse cellular processes. Among the RTK family members, Human epidermal growth factor receptor 2 (HER2) and HER3 are particularly relevant to breast cancer. The review delves into the complexities of receptor tyrosine kinase interactions, resistance mechanisms, and the potential of anti-HER3 drugs, offering valuable insights into the clinical implications and future directions in this field of study. It assesses the potential of anti-HER3 drugs, such as pertuzumab, in overcoming resistance observed in HER2-positive breast cancer therapies. The review also explores the resistance mechanisms associated with various drugs, including trastuzumab, lapatinib, and PI3K inhibitors, providing insights into the intricate molecular processes underlying resistance development. The review concludes by emphasizing the necessity for further clinical trials to assess the efficacy of HER3 inhibitors and the potential of developing safe and effective anti-HER3 treatments to improve treatment outcomes for patients with HER2-positive breast cancer.
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Affiliation(s)
- Wujun Geng
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Holly Thomas
- Institute of Biomedical and Clinical Sciences, Medical School, Faculty of Health and Life Sciences, University of Exeter, Hatherly Laboratories, Streatham Campus, Exeter, EX4 4PS, UK
| | - Zhiyuan Chen
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Zhixiu Yan
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Pujuan Zhang
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Meiying Zhang
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Weixue Huang
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Xiaomei Ren
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Zhen Wang
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Ke Ding
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jinwei Zhang
- State Key Laboratory of Chemical Biology, Research Center of Chemical Kinomics, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China; Institute of Biomedical and Clinical Sciences, Medical School, Faculty of Health and Life Sciences, University of Exeter, Hatherly Laboratories, Streatham Campus, Exeter, EX4 4PS, UK.
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2
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Kilroy MK, Park S, Feroz W, Patel H, Mishra R, Alanazi S, Garrett JT. HER3 Alterations in Cancer and Potential Clinical Implications. Cancers (Basel) 2022; 14:cancers14246174. [PMID: 36551663 PMCID: PMC9776947 DOI: 10.3390/cancers14246174] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
In recent years, the third member of the HER family, kinase impaired HER3, has become a target of interest in cancer as there is accumulating evidence that HER3 plays a role in tumor growth and progression. This review focuses on HER3 activation in bladder, breast, colorectal, and lung cancer disease progression. HER3 mutations occur at a rate up to ~10% of tumors dependent on the tumor type. With patient tumors routinely sequenced for gene alterations in recent years, we have focused on HER3 mutations in bladder, breast, colon, and lung cancers particularly in response to targeted therapies and the potential to become a resistance mechanism. There are currently several HER3 targeting drugs in the pipeline, possibly improving outcomes for cancer patients with tumors containing HER3 activation and/or alterations.
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Affiliation(s)
- Mary Kate Kilroy
- Department of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - SoYoung Park
- Department of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
- Cancer Research Scholars Program, College of Allied Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Wasim Feroz
- Department of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Hima Patel
- Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA
| | - Rosalin Mishra
- Department of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Samar Alanazi
- Department of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Joan T. Garrett
- Department of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
- Correspondence:
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3
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Wang X, Jiang W, Du Y, Zhu D, Zhang J, Fang C, Yan F, Chen ZS. Targeting feedback activation of signaling transduction pathways to overcome drug resistance in cancer. Drug Resist Updat 2022; 65:100884. [DOI: 10.1016/j.drup.2022.100884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/05/2022] [Accepted: 10/09/2022] [Indexed: 11/03/2022]
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4
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Gandullo-Sánchez L, Ocaña A, Pandiella A. HER3 in cancer: from the bench to the bedside. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:310. [PMID: 36271429 PMCID: PMC9585794 DOI: 10.1186/s13046-022-02515-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/07/2022] [Indexed: 11/15/2022]
Abstract
The HER3 protein, that belongs to the ErbB/HER receptor tyrosine kinase (RTK) family, is expressed in several types of tumors. That fact, together with the role of HER3 in promoting cell proliferation, implicate that targeting HER3 may have therapeutic relevance. Furthermore, expression and activation of HER3 has been linked to resistance to drugs that target other HER receptors such as agents that act on EGFR or HER2. In addition, HER3 has been associated to resistance to some chemotherapeutic drugs. Because of those circumstances, efforts to develop and test agents targeting HER3 have been carried out. Two types of agents targeting HER3 have been developed. The most abundant are antibodies or engineered antibody derivatives that specifically recognize the extracellular region of HER3. In addition, the use of aptamers specifically interacting with HER3, vaccines or HER3-targeting siRNAs have also been developed. Here we discuss the state of the art of the preclinical and clinical development of drugs aimed at targeting HER3 with therapeutic purposes.
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Affiliation(s)
- Lucía Gandullo-Sánchez
- grid.428472.f0000 0004 1794 2467Instituto de Biología Molecular y Celular del Cáncer, CSIC, IBSAL and CIBERONC, Campus Miguel de Unamuno, 37007 Salamanca, Spain
| | - Alberto Ocaña
- grid.411068.a0000 0001 0671 5785Hospital Clínico San Carlos and CIBERONC, 28040 Madrid, Spain
| | - Atanasio Pandiella
- grid.428472.f0000 0004 1794 2467Instituto de Biología Molecular y Celular del Cáncer, CSIC, IBSAL and CIBERONC, Campus Miguel de Unamuno, 37007 Salamanca, Spain
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5
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Recent advances and limitations in the application of kahalalides for the control of cancer. Biomed Pharmacother 2022; 148:112676. [PMID: 35149387 PMCID: PMC9004612 DOI: 10.1016/j.biopha.2022.112676] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/19/2022] [Accepted: 01/22/2022] [Indexed: 11/24/2022] Open
Abstract
Since the discovery of the kahalalide family of marine depsipeptides in 1993, considerable work has been done to develop these compounds as new and biologically distinct anti-cancer agents. Clinical trials and laboratory research have yielded a wealth of data that indicates tolerance of kahalalides in healthy cells and selective activity against diseased cells. Currently, two molecules have attracted the greates level of attention, kahalalide F (KF) and isokahalalide F (isoKF, Irvalec, PM 02734, elisidepsin). Both compounds were originally isolated from the sarcoglossan mollusk Elysia rufescens but due to distinct structural characteristics it has been hypothesized and recently shown that the ultimate origin of the molecules is microbial. The search for their true source has been a subject of considerable research in the anticipation of finding new analogs and a culturable expression system that can produce sufficient material through fermentation to be industrially relevant.
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6
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Wei M, Wang J, He Q, Liu L, Wang Z. AC016405.3 functions as an oncogenic long non-coding RNA by regulating ERBB3 via sponging miR-22-3p in breast cancer. J Clin Lab Anal 2021; 35:e23952. [PMID: 34403532 PMCID: PMC8418490 DOI: 10.1002/jcla.23952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/28/2021] [Accepted: 07/31/2021] [Indexed: 12/16/2022] Open
Abstract
Background Increasing studies reported that long non‐coding RNAs are involved in regulating breast cancer (BRCA) progression. However, the specific roles and mechanisms of lncRNAs in BRCA remain largely unknown. Here, we sought to explore the functions and mechanisms of AC016405.3 in BRCA progression. Methods Bioinformatic analysis for AC016405.3, miR‐22‐3p, and ERBB3 were performed on starBase. The expressions of AC016405.3, miR‐22‐3p, and ERBB3 were examined by RT‐qPCR. The functions of AC016405.3 on the proliferation, migration, and invasion of cells were evaluated by conducting CCK‐8, colony formation, wound‐healing, and Transwell assays. The subcellular distribution of AC016405.3 in BRCA cells was identified by performing fluorescence in situ hybridization (FISH) and subcellular fractionation techniques. Dual‐luciferase assay was applied to validate the interactions of miR‐22‐3p with AC016405.3 or ERBB3. The interaction between ERBB3 and miR‐22‐3p was also tested by Anti‐Ago2 RNA immunoprecipitation (RIP) assay. Results The results showed that AC016405.3 is highly expressed in BRCA tissues as well as cells and positively correlated with poor prognosis in BRCA patients. Silencing AC016405.3 obviously repressed the malignant behaviors of BRCA cells. Mechanistically, AC016405.3 functioned as a competing endogenous RNA (ceRNA) for miR‐22‐3p in the cytoplasm and sponged miR‐22‐3p to release its suppression of ERBB3. Rescue experiments revealed that the suppression role induced by AC016405.3 depletion on malignant behaviors of BRCA cells could be obviously counter by inhibiting miR‐22‐3p or overexpressing ERBB3. Conclusion AC016405.3 promotes BRCA progression by the derepression of ERBB3 via sponging miR‐22‐3p, which may represent a potential target for BRCA treatment.
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Affiliation(s)
- Min Wei
- Department of Breast, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Jie Wang
- Department of Breast, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Qi He
- Department of Breast, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Lei Liu
- Department of Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Zhiwei Wang
- Department of Breast, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
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7
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Berdiel-Acer M, Maia A, Hristova Z, Borgoni S, Vetter M, Burmester S, Becki C, Michels B, Abnaof K, Binenbaum I, Bethmann D, Chatziioannou A, Hasmann M, Thomssen C, Espinet E, Wiemann S. Stromal NRG1 in luminal breast cancer defines pro-fibrotic and migratory cancer-associated fibroblasts. Oncogene 2021; 40:2651-2666. [PMID: 33692466 PMCID: PMC8049869 DOI: 10.1038/s41388-021-01719-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 01/31/2023]
Abstract
HER3 is highly expressed in luminal breast cancer subtypes. Its activation by NRG1 promotes activation of AKT and ERK1/2, contributing to tumour progression and therapy resistance. HER3-targeting agents that block this activation, are currently under phase 1/2 clinical studies, and although they have shown favorable tolerability, their activity as a single agent has proven to be limited. Here we show that phosphorylation and activation of HER3 in luminal breast cancer cells occurs in a paracrine manner and is mediated by NRG1 expressed by cancer-associated fibroblasts (CAFs). Moreover, we uncover a HER3-independent NRG1 signaling in CAFs that results in the induction of a strong migratory and pro-fibrotic phenotype, describing a subtype of CAFs with elevated expression of NRG1 and an associated transcriptomic profile that determines their functional properties. Finally, we identified Hyaluronan Synthase 2 (HAS2), a targetable molecule strongly correlated with NRG1, as an attractive player supporting NRG1 signaling in CAFs.
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Affiliation(s)
- Mireia Berdiel-Acer
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ana Maia
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Faculty of Biosciences, Ruprecht-Karls-University, Heidelberg, Germany
| | - Zhivka Hristova
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Faculty of Biosciences, Ruprecht-Karls-University, Heidelberg, Germany
| | - Simone Borgoni
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Faculty of Biosciences, Ruprecht-Karls-University, Heidelberg, Germany
| | - Martina Vetter
- grid.9018.00000 0001 0679 2801Department of Gynecology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Sara Burmester
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Corinna Becki
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Birgitta Michels
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Khalid Abnaof
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ilona Binenbaum
- grid.7497.d0000 0004 0492 0584Division of Medical Informatics for Translational Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.11047.330000 0004 0576 5395Department of Biology, University of Patras, Patras, Greece ,grid.22459.380000 0001 2232 6894Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece
| | - Daniel Bethmann
- grid.9018.00000 0001 0679 2801Institute of Pathology Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Aristotelis Chatziioannou
- grid.22459.380000 0001 2232 6894Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece ,e-NIOS PC, Kallithea-Athens, Greece
| | - Max Hasmann
- grid.424277.0Roche Diagnostics, Penzberg, Germany
| | - Christoph Thomssen
- grid.9018.00000 0001 0679 2801Department of Gynecology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Elisa Espinet
- grid.7497.d0000 0004 0492 0584Divison of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.482664.aHeidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM), Heidelberg, Germany
| | - Stefan Wiemann
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
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8
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Huebner H, Kurbacher CM, Kuesters G, Hartkopf AD, Lux MP, Huober J, Volz B, Taran FA, Overkamp F, Tesch H, Häberle L, Lüftner D, Wallwiener M, Müller V, Beckmann MW, Belleville E, Ruebner M, Untch M, Fasching PA, Janni W, Fehm TN, Kolberg HC, Wallwiener D, Brucker SY, Schneeweiss A, Ettl J. Heregulin (HRG) assessment for clinical trial eligibility testing in a molecular registry (PRAEGNANT) in Germany. BMC Cancer 2020; 20:1091. [PMID: 33176725 PMCID: PMC7656772 DOI: 10.1186/s12885-020-07546-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 10/20/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Eligibility criteria are a critical part of clinical trials, as they define the patient population under investigation. Besides certain patient characteristics, clinical trials often include biomarker testing for eligibility. However, patient-identification mostly relies on the trial site itself and is often a time-consuming procedure, which could result in missing out on potentially eligible patients. Pre-selection of those patients using a registry could facilitate the process of eligibility testing and increase the number of identified patients. One aim with the PRAEGNANT registry (NCT02338167) is to identify patients for therapies based on clinical and molecular data. Here, we report eligibility testing for the SHERBOC trial using the German PRAEGNANT registry. METHODS Heregulin (HRG) has been reported to identify patients with better responses to therapy with the anti-HER3 monoclonal antibody seribantumab (MM-121). The SHERBOC trial investigated adding seribantumab (MM-121) to standard therapy in patients with advanced HER2-negative, hormone receptor-positive (HR-positive) breast cancer and HRG overexpression. The PRAEGNANT registry was used for identification and tumor testing, helping to link potential HRG positive patients to the trial. Patients enrolled in PRAEGNANT have invasive and metastatic or locally advanced, inoperable breast cancer. Patients eligible for SHERBOC were identified by using the registry. Study aims were to describe the HRG positivity rate, screening procedures, and patient characteristics associated with inclusion and exclusion criteria. RESULTS Among 2769 unselected advanced breast cancer patients, 650 were HER2-negative, HR-positive and currently receiving first- or second-line treatment, thus potentially eligible for SHERBOC at the end of current treatment; 125 patients also met further clinical eligibility criteria (e.g. menopausal status, ECOG). In the first/second treatment lines, patients selected for SHERBOC based on further eligibility criteria had a more favorable prognosis than those not selected. HRG status was tested in 38 patients, 14 of whom (36.8%) proved to be HRG-positive. CONCLUSION Using a real-world breast cancer registry allowed identification of potentially eligible patients for SHERBOC focusing on patients with HER3 overexpressing, HR-positive, HER2-negative metastatic breast cancer. This approach may provide insights into differences between patients eligible or non-eligible for clinical trials. TRIAL REGISTRATION Clinicaltrials, NCT02338167 , Registered 14 January 2015 - retrospectively registered.
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Affiliation(s)
- Hanna Huebner
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 21-23, Erlangen, 91054, Germany
| | - Christian M Kurbacher
- Gynecology I (Gynecologic Oncology), Gynecologic Center Bonn-Friedensplatz, Bonn, Germany
| | | | - Andreas D Hartkopf
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | - Michael P Lux
- Klinik für Gynäkologie und Geburtshilfe Frauenklinik St. Louise, Paderborn, St. Josefs-Krankenhaus, Salzkotten, Kooperatives Brustzentrum, Paderborn, Germany
| | - Jens Huober
- Department of Gynecology and Obstetrics, Ulm University Hospital, Ulm, Germany
| | - Bernhard Volz
- Ansbach University of Applied Sciences, Ansbach, Germany
| | | | | | - Hans Tesch
- Oncology Practice at Bethanien Hospital Frankfurt, Frankfurt, Germany
| | - Lothar Häberle
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 21-23, Erlangen, 91054, Germany.,Biostatistics Unit, Department of Gynecology and Obstetrics, University Hospital Erlangen, Erlangen, Germany
| | - Diana Lüftner
- Berlin, Campus Benjamin Franklin, Department of Hematology, Oncology and Tumor Immunology, Charité University Hospital, Berlin, Germany
| | - Markus Wallwiener
- Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
| | - Volkmar Müller
- Department of Gynecology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 21-23, Erlangen, 91054, Germany
| | | | - Matthias Ruebner
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 21-23, Erlangen, 91054, Germany
| | - Michael Untch
- Department of Gynecology and Obstetrics, Helios Clinics Berlin Buch, Berlin, Germany
| | - Peter A Fasching
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 21-23, Erlangen, 91054, Germany.
| | - Wolfgang Janni
- Department of Gynecology and Obstetrics, Ulm University Hospital, Ulm, Germany
| | - Tanja N Fehm
- Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Düsseldorf, Germany
| | | | - Diethelm Wallwiener
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | - Sara Y Brucker
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | - Andreas Schneeweiss
- National Center for Tumor Diseases and Department of Gynecology and Obstetrics, Heidelberg University Hospital, Heidelberg, Germany
| | - Johannes Ettl
- Department of Obstetrics and Gynecology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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9
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Coordinated dysregulation of cancer progression by the HER family and p21-activated kinases. Cancer Metastasis Rev 2020; 39:583-601. [PMID: 32820388 DOI: 10.1007/s10555-020-09922-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 12/20/2022]
Abstract
Most epithelial cancer types are polygenic in nature and are driven by coordinated dysregulation of multiple regulatory pathways, genes, and protein modifications. The process of coordinated regulation of cancer promoting pathways in response to extrinsic and intrinsic signals facilitates the dysregulation of several pathways with complementary functions, contributing to the hallmarks of cancer. Dysregulation and hyperactivation of cell surface human epidermal growth factor receptors (HERs) and cytoskeleton remodeling by p21-activated kinases (PAKs) are two prominent interconnected aspects of oncogenesis. We briefly discuss the discoveries and significant advances in the area of coordinated regulation of HERs and PAKs in the development and progression of breast and other epithelial cancers. We also discuss how initial studies involving heregulin signaling via HER3-HER2 axis and HER2-overexpressing breast cancer cells not only discovered a mechanistic role of PAK1 in breast cancer pathobiology but also acted as a bridge in generating a broader cancer research interest in other PAK family members and cancer types and catalyzed establishing the role of PAKs in human cancer, at-large. In addition, growth factor stimulation of the PAK pathway also helped to recognize new facets of PAKs, connecting the PAK pathway to oncogenesis, nuclear signaling, gene expression, mitotic progression, DNA damage response, among other phenotypic responses, and shaped the field of PAK cancer research. Finally, we recount some of the current limitations of HER- and PAK-directed therapeutics in counteracting acquired therapeutic resistance and discuss how cancer's as a polygenic disease may be best targeted with a polygenic approach.
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10
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Kandettu A, Radhakrishnan R, Chakrabarty S, Sriharikrishnaa S, Kabekkodu SP. The emerging role of miRNA clusters in breast cancer progression. Biochim Biophys Acta Rev Cancer 2020; 1874:188413. [PMID: 32827583 DOI: 10.1016/j.bbcan.2020.188413] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/01/2020] [Accepted: 08/11/2020] [Indexed: 02/07/2023]
Abstract
Micro RNAs (miRNAs) are small non-coding RNAs that are essential for regulation of gene expression of the target genes. Large number of miRNAs are organized into defined units known as miRNA clusters (MCs). The MCs consist of two or more than two miRNA encoding genes driven by a single promoter, transcribed together in the same orientation, that are not separated from each other by a transcription unit. Aberrant miRNA clusters expression is reported in breast cancer (BC), exhibiting both pro-tumorogenic and anti-tumorigenic role. Altered MCs expression facilitates to breast carcinogenesis by promoting the breast cells to acquire the various hallmarks of the cancer. Since miRNA clusters contain multiple miRNA encoding genes, targeting cluster may be more attractive than targeting individual miRNAs. Besides targeting dysregulated miRNA clusters in BC, studies have focused on the mechanism of action, and its contribution to the progression of the BC. The present review provides a comprehensive overview of dysregulated miRNA clusters and its role in the acquisition of cancer hallmarks in BC. More specifically, we have presented the regulation, differential expression, classification, targets, mechanism of action, and signaling pathways of miRNA clusters in BC. Additionally, we have also discussed the potential utility of the miRNA cluster as a diagnostic and prognostic indicator in BC.
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Affiliation(s)
- Amoolya Kandettu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576106, India
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Sanjiban Chakrabarty
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576106, India; Center for DNA Repair and Genome Stability (CDRGS), Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - S Sriharikrishnaa
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576106, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576106, India; Center for DNA Repair and Genome Stability (CDRGS), Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
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11
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Kumar R, George B, Campbell MR, Verma N, Paul AM, Melo-Alvim C, Ribeiro L, Pillai MR, da Costa LM, Moasser MM. HER family in cancer progression: From discovery to 2020 and beyond. Adv Cancer Res 2020; 147:109-160. [PMID: 32593399 DOI: 10.1016/bs.acr.2020.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The human epidermal growth factor receptor (HER) family of receptor tyrosine kinases (RTKs) are among the first layer of molecules that receive, interpret, and transduce signals leading to distinct cancer cell phenotypes. Since the discovery of the tooth-lid factor-later characterized as the epidermal growth factor (EGF)-and its high-affinity binding EGF receptor, HER kinases have emerged as one of the commonly upregulated or hyperactivated or mutated kinases in epithelial tumors, thus allowing HER1-3 family members to regulate several hallmarks of cancer development and progression. Each member of the HER family exhibits shared and unique structural features to engage multiple receptor activation modes, leading to a range of overlapping and distinct phenotypes. EGFR, the founding HER family member, provided the roadmap for the development of the cell surface RTK-directed targeted cancer therapy by serving as a prototype/precursor for the currently used HER-directed cancer drugs. We herein provide a brief account of the discoveries, defining moments, and historical context of the HER family and guidepost advances in basic, translational, and clinical research that solidified a prominent position of the HER family in cancer research and treatment. We also discuss the significance of HER3 pseudokinase in cancer biology; its unique structural features that drive transregulation among HER1-3, leading to a superior proximal signaling response; and potential role of HER3 as a shared effector of acquired therapeutic resistance against diverse oncology drugs. Finally, we also narrate some of the current drawbacks of HER-directed therapies and provide insights into postulated advances in HER biology with extensive implications of these therapies in cancer research and treatment.
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Affiliation(s)
- Rakesh Kumar
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India; Department of Medicine, Division of Hematology & Oncology, Rutgers New Jersey Medical School, Newark, NJ, United States; Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
| | - Bijesh George
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India
| | - Marcia R Campbell
- Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, United States
| | - Nandini Verma
- Advanced Centre for Treatment, Research and Education in Cancer, Mumbai, India
| | - Aswathy Mary Paul
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India
| | - Cecília Melo-Alvim
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - Leonor Ribeiro
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - M Radhakrishna Pillai
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India
| | - Luis Marques da Costa
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal; Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Mark M Moasser
- Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, United States.
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12
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Williams MM, Elion DL, Rahman B, Hicks DJ, Sanchez V, Cook RS. Therapeutic inhibition of Mcl-1 blocks cell survival in estrogen receptor-positive breast cancers. Oncotarget 2019; 10:5389-5402. [PMID: 31595181 PMCID: PMC6739218 DOI: 10.18632/oncotarget.27070] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/14/2019] [Indexed: 12/17/2022] Open
Abstract
Cancers often overexpress anti-apoptotic Bcl-2 proteins for cell death evasion, a recognized hallmark of cancer progression. While estrogen receptor (ER)-α+ breast cancers express high levels of three anti-apoptotic Bcl-2 family members (Bcl-2, Bcl-xL, and Mcl-1), pharmacological inhibition of Bcl-2 and/or Bcl-xL fails to induce cell death in ERα+ breast cancer cell lines, due to rapid and robust Mcl-1 upregulation. The mechanisms of acute Mcl-1 upregulation in response to Bcl-2/Bcl-xL inhibition remain undefined in in ERα+ breast cancers. We report here that blockade of Bcl-2 or Bcl-xL, alone or together, rapidly induced mTOR signaling in ERα+ breast cancer cells, rapidly increasing cap-dependent Mcl-1 translation. Cells treated with a pharmacological inhibitor of cap-dependent translation, or with the mTORC1 inhibitor RAD001/everolimus, displayed reduced protein levels of Mcl-1 under basal conditions, and failed to upregulate Mcl-1 protein expression following treatment with ABT-263, a pharmacological inhibitor of Bcl-2 and Bcl-xL. Although treatment with ABT-263 alone did not sustain apoptosis in tumor cells in culture or in vivo, ABT-263 plus RAD001 increased apoptosis to a greater extent than either agent used alone. Similarly, combined use of the selective Mcl-1 inhibitor VU661013 with ABT-263 resulted in tumor cell apoptosis and diminished tumor growth in vivo. These findings suggest that rapid Mcl-1 translation drives ABT-263 resistance, but can be combated directly using emerging Mcl-1 inhibitors, or indirectly through existing and approved mTOR inhibitors.
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Affiliation(s)
| | - David L Elion
- Program in Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Bushra Rahman
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Donna J Hicks
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Violeta Sanchez
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Rebecca S Cook
- Program in Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA.,Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA.,Department of Biomedical Engineering, Vanderbilt University, Nashville TN 37232, USA.,The Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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13
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Hashimoto Y, Koyama K, Kamai Y, Hirotani K, Ogitani Y, Zembutsu A, Abe M, Kaneda Y, Maeda N, Shiose Y, Iguchi T, Ishizaka T, Karibe T, Hayakawa I, Morita K, Nakada T, Nomura T, Wakita K, Kagari T, Abe Y, Murakami M, Ueno S, Agatsuma T. A Novel HER3-Targeting Antibody-Drug Conjugate, U3-1402, Exhibits Potent Therapeutic Efficacy through the Delivery of Cytotoxic Payload by Efficient Internalization. Clin Cancer Res 2019; 25:7151-7161. [PMID: 31471314 DOI: 10.1158/1078-0432.ccr-19-1745] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/30/2019] [Accepted: 08/27/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE HER3 is a compelling target for cancer treatment; however, no HER3-targeted therapy is currently clinically available. Here, we produced U3-1402, an anti-HER3 antibody-drug conjugate with a topoisomerase I inhibitor exatecan derivative (DXd), and systematically investigated its targeted drug delivery potential and antitumor activity in preclinical models. EXPERIMENTAL DESIGN In vitro pharmacologic activities and the mechanisms of action of U3-1402 were assessed in several human cancer cell lines. Antitumor activity of U3-1402 was evaluated in xenograft mouse models, including patient-derived xenograft (PDX) models. Safety assessments were also conducted in rats and monkeys. RESULTS U3-1402 showed HER3-specific binding followed by highly efficient cancer cell internalization. Subsequently, U3-1402 was translocated to the lysosome and released its payload DXd. While U3-1402 was able to inhibit HER3-activated signaling similar to its naked antibody patritumab, the cytotoxic activity of U3-1402 in HER3-expressing cells was predominantly mediated by released DXd through DNA damage and apoptosis induction. In xenograft mouse models, U3-1402 exhibited dose-dependent and HER3-dependent antitumor activity. Furthermore, U3-1402 exerted potent antitumor activity against PDX tumors with HER3 expression. Acceptable toxicity was noted in both rats and monkeys. CONCLUSIONS U3-1402 demonstrated promising antitumor activity against HER3-expressing tumors with tolerable safety profiles. The activity of U3-1402 was driven by HER3-mediated payload delivery via high internalization into tumor cells.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Taisei Nomura
- National Institute of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | | | | | - Yuki Abe
- Daiichi Sankyo Co., Ltd., Tokyo, Japan
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14
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Jacob W, James I, Hasmann M, Weisser M. Clinical development of HER3-targeting monoclonal antibodies: Perils and progress. Cancer Treat Rev 2018; 68:111-123. [PMID: 29944978 DOI: 10.1016/j.ctrv.2018.06.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 06/14/2018] [Accepted: 06/15/2018] [Indexed: 12/16/2022]
Abstract
The human epidermal growth factor receptor (HER) family consists of four transmembrane receptor tyrosine kinases: epidermal growth factor receptor (EGFR), HER2, HER3, and HER4. They are part of a complex signalling network and stimulate intracellular pathways regulating cell growth and differentiation. So far, monoclonal antibodies (mAbs) and small molecule tyrosine kinase inhibitors targeting EGFR and HER2 have been developed and approved. Recently, focus has turned to HER3 as it may play an important role in resistance to EGFR- and HER2-targeting therapies. HER3-targeting agents have been undergoing clinical evaluation for the last 10 years and currently thirteen mAbs are in phase 1 or 2 clinical studies. Single agent activity has proven to be limited, however, the tolerability was favourable. Thus, combinations of HER3-binding mAbs with other HER-targeting therapies or chemotherapies have been pursued in various solid tumor entities. Data indicate that the HER3-binding ligand heregulin may serve as a response prediction marker for HER3-targeting therapy. Within this review the current status of clinical development of HER3-targeting compounds is described.
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Affiliation(s)
- Wolfgang Jacob
- Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany.
| | - Ian James
- A4P Consulting Ltd, Discovery Park, Sandwich, UK
| | - Max Hasmann
- Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | - Martin Weisser
- Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
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15
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Mishra R, Alanazi S, Yuan L, Solomon T, Thaker TM, Jura N, Garrett JT. Activating HER3 mutations in breast cancer. Oncotarget 2018; 9:27773-27788. [PMID: 29963236 PMCID: PMC6021238 DOI: 10.18632/oncotarget.25576] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 05/19/2018] [Indexed: 12/24/2022] Open
Abstract
Recent studies have highlighted a role of HER3 in ER and HER2-driven breast cancers. We sought to investigate the role of patient-derived HER3 mutations in ER+ and HER2+ breast cancer cells using ectopic expression of HER3 mutants. We found that HER3T355I mutant is activating with increased cell proliferation in ER+ T47D and MCF-7 breast cancer cells lacking HER2 over-expression. Immunoblotting and receptor tyrosine kinase array results indicated that T47D and MCF-7 cells expressing HER3T355I had increased p-HER4 and p-HER1 expression. Our data showed that HER3T355I induced cell proliferation is via HER4/HER1-dependent ERK1/2 and cyclinD1 mediated pathways in ER+ cells. ERα expression is upregulated in ER+ cells expressing HER3T355I mutant. We noted crosstalk between ERα and HER3 in T47D cells. Several HER3 mutants (F94L, G284R, D297Y, T355I, and E1261A) acquired a gain-of-function phenotype in MCF10AHER2 cells and were resistant to lapatinib. These mutants increased HER2-HER3 heterodimerization. Knocking down HER3 from ovarian and colorectal cancers with endogenous HER3 mutations abrogated cancer cell proliferation. Overall, this study provides the first systematic assessment of how mutations in HER3 affect response of ER+ and HER2+ breast cancers to clinically relevant inhibitors and finds that HER3 mutations can be activating independent of HER2 over-expression.
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Affiliation(s)
- Rosalin Mishra
- James L. Winkle College of Pharmacy, University of Ohio, Cincinnati, Ohio, USA
| | - Samar Alanazi
- James L. Winkle College of Pharmacy, University of Ohio, Cincinnati, Ohio, USA
| | - Long Yuan
- James L. Winkle College of Pharmacy, University of Ohio, Cincinnati, Ohio, USA
| | - Thomas Solomon
- James L. Winkle College of Pharmacy, University of Ohio, Cincinnati, Ohio, USA
| | - Tarjani M. Thaker
- Department of Cellular and Molecular Pharmacology, Cardiovascular Research Institute, University of California, San Francisco, California, USA
| | - Natalia Jura
- Department of Cellular and Molecular Pharmacology, Cardiovascular Research Institute, University of California, San Francisco, California, USA
| | - Joan T. Garrett
- James L. Winkle College of Pharmacy, University of Ohio, Cincinnati, Ohio, USA
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16
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Mishra R, Patel H, Alanazi S, Yuan L, Garrett JT. HER3 signaling and targeted therapy in cancer. Oncol Rev 2018; 12:355. [PMID: 30057690 PMCID: PMC6047885 DOI: 10.4081/oncol.2018.355] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 04/27/2018] [Indexed: 12/27/2022] Open
Abstract
ERBB family members including epidermal growth factor receptor (EGFR) also known as HER1, ERBB2/HER2/Neu, ERBB3/HER3 and ERBB4/HER4 are aberrantly activated in multiple cancers and hence serve as drug targets and biomarkers in modern precision therapy. The therapeutic potential of HER3 has long been underappreciated, due to impaired kinase activity and relatively low expression in tumors. However, HER3 has received attention in recent years as it is a crucial heterodimeric partner for other EGFR family members and has the potential to regulate EGFR/HER2-mediated resistance. Upregulation of HER3 is associated with several malignancies where it fosters tumor progression via interaction with different receptor tyrosine kinases (RTKs). Studies also implicate HER3 contributing significantly to treatment failure, mostly through the activation of PI3K/AKT, MAPK/ERK and JAK/STAT pathways. Moreover, activating mutations in HER3 have highlighted the role of HER3 as a direct therapeutic target. Therapeutic targeting of HER3 includes abrogating its dimerization partners’ kinase activity using small molecule inhibitors (lapatinib, erlotinib, gefitinib, afatinib, neratinib) or direct targeting of its extracellular domain. In this review, we focus on HER3-mediated signaling, its role in drug resistance and discuss the latest advances to overcome resistance by targeting HER3 using mono- and bispecific antibodies and small molecule inhibitors.
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Affiliation(s)
- Rosalin Mishra
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA
| | - Hima Patel
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA
| | - Samar Alanazi
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA
| | - Long Yuan
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA
| | - Joan T Garrett
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA
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17
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Geuijen CAW, De Nardis C, Maussang D, Rovers E, Gallenne T, Hendriks LJA, Visser T, Nijhuis R, Logtenberg T, de Kruif J, Gros P, Throsby M. Unbiased Combinatorial Screening Identifies a Bispecific IgG1 that Potently Inhibits HER3 Signaling via HER2-Guided Ligand Blockade. Cancer Cell 2018; 33:922-936.e10. [PMID: 29763625 DOI: 10.1016/j.ccell.2018.04.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 02/26/2018] [Accepted: 04/09/2018] [Indexed: 01/21/2023]
Abstract
HER2-driven cancers require phosphatidylinositide-3 kinase (PI3K)/Akt signaling through HER3 to promote tumor growth and survival. The therapeutic benefit of HER2-targeting agents, which depend on PI3K/Akt inhibition, can be overcome by hyperactivation of the heregulin (HRG)/HER3 pathway. Here we describe an unbiased phenotypic combinatorial screening approach to identify a bispecific immunoglobulin G1 (IgG1) antibody against HER2 and HER3. In tumor models resistant to HER2-targeting agents, the bispecific IgG1 potently inhibits the HRG/HER3 pathway and downstream PI3K/Akt signaling via a "dock & block" mechanism. This bispecific IgG1 is a potentially effective therapy for breast cancer and other tumors with hyperactivated HRG/HER3 signaling.
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MESH Headings
- Animals
- Antibodies, Bispecific/administration & dosage
- Antibodies, Bispecific/pharmacology
- Cell Line, Tumor
- Drug Resistance, Neoplasm/drug effects
- Drug Screening Assays, Antitumor
- Humans
- Immunoglobulin G/administration & dosage
- Immunoglobulin G/pharmacology
- MCF-7 Cells
- Mice
- Models, Molecular
- Neoplasms/drug therapy
- Neoplasms/metabolism
- Phosphatidylinositol 3-Kinases/metabolism
- Protein Binding/drug effects
- Proto-Oncogene Proteins c-akt/metabolism
- Receptor, ErbB-2/antagonists & inhibitors
- Receptor, ErbB-2/chemistry
- Receptor, ErbB-3/chemistry
- Receptor, ErbB-3/metabolism
- Signal Transduction/drug effects
- Xenograft Model Antitumor Assays
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Affiliation(s)
| | - Camilla De Nardis
- Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Department of Chemistry, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands
| | | | | | | | | | | | | | | | | | - Piet Gros
- Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Department of Chemistry, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands
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18
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Du D, Ma W, Yates MS, Chen T, Lu KH, Lu Y, Weinstein JN, Broaddus RR, Mills GB, Liu Y. Predicting high-risk endometrioid carcinomas using proteins. Oncotarget 2018; 9:19704-19715. [PMID: 29731976 PMCID: PMC5929419 DOI: 10.18632/oncotarget.24803] [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] [Received: 09/14/2017] [Accepted: 02/24/2018] [Indexed: 12/31/2022] Open
Abstract
Background The lethality of endometrioid endometrial cancer (EEC) is primarily attributable to advanced-stage diseases. We sought to develop a biomarker model that predicts EEC surgical stage at the time of clinical diagnosis. Results PSES was significantly correlated with surgical stage in the TCGA cohort (P < 0.0001) and in the validation cohort (P = 0.0003). Even among grade 1 or 2 tumors, PSES was significantly higher in advanced than in early stage tumors in both the TCGA (P = 0.005) and MD Anderson Cancer Center (MDACC) (P = 0.006) cohorts. Patients with positive PSES score had significantly shorter progression-free survival than those with negative PSES in the TCGA (hazard ratio [HR], 2.033; 95% CI, 1.031 to 3.809; P = 0.04) and validation (HR, 3.306; 95% CI, 1.836 to 9.436; P = 0.0007) cohorts. The ErbB signaling pathway was most significantly enriched in the PSES proteins and downregulated in advanced stage tumors. Methods Using reverse-phase protein array expression profiles of 170 antibodies for 210 EEC cases from TCGA, we constructed a Protein Scoring of EEC Staging (PSES) scheme comprising 6 proteins (3 of them phosphorylated) for surgical stage prediction. We validated and evaluated its diagnostic potential in an independent cohort of 184 EEC cases obtained at MDACC using receiver operating characteristic curve analyses. Kaplan-Meier survival analysis was used to examine the association of PSES score with patient outcome, and Ingenuity pathway analysis was used to identify relevant signaling pathways. Two-sided statistical tests were used. Conclusions PSES may provide clinically useful prediction of high-risk tumors and offer new insights into tumor biology in EEC.
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Affiliation(s)
- Di Du
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Wencai Ma
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Melinda S Yates
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Tao Chen
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Karen H Lu
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yiling Lu
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - John N Weinstein
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Russell R Broaddus
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Gordon B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yuexin Liu
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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19
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Werfel TA, Wang S, Jackson MA, Kavanaugh TE, Joly MM, Lee LH, Hicks DJ, Sanchez V, Ericsson PG, Kilchrist KV, Dimobi SC, Sarett SM, Brantley-Sieders DM, Cook RS, Duvall CL. Selective mTORC2 Inhibitor Therapeutically Blocks Breast Cancer Cell Growth and Survival. Cancer Res 2018; 78:1845-1858. [PMID: 29358172 DOI: 10.1158/0008-5472.can-17-2388] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/11/2017] [Accepted: 01/17/2018] [Indexed: 12/12/2022]
Abstract
Small-molecule inhibitors of the mTORC2 kinase (torkinibs) have shown efficacy in early clinical trials. However, the torkinibs under study also inhibit the other mTOR-containing complex mTORC1. While mTORC1/mTORC2 combined inhibition may be beneficial in cancer cells, recent reports describe compensatory cell survival upon mTORC1 inhibition due to loss of negative feedback on PI3K, increased autophagy, and increased macropinocytosis. Genetic models suggest that selective mTORC2 inhibition would be effective in breast cancers, but the lack of selective small-molecule inhibitors of mTORC2 have precluded testing of this hypothesis to date. Here we report the engineering of a nanoparticle-based RNAi therapeutic that can effectively silence the mTORC2 obligate cofactor Rictor. Nanoparticle-based Rictor ablation in HER2-amplified breast tumors was achieved following intratumoral and intravenous delivery, decreasing Akt phosphorylation and increasing tumor cell killing. Selective mTORC2 inhibition in vivo, combined with the HER2 inhibitor lapatinib, decreased the growth of HER2-amplified breast cancers to a greater extent than either agent alone, suggesting that mTORC2 promotes lapatinib resistance, but is overcome by mTORC2 inhibition. Importantly, selective mTORC2 inhibition was effective in a triple-negative breast cancer (TNBC) model, decreasing Akt phosphorylation and tumor growth, consistent with our findings that RICTOR mRNA correlates with worse outcome in patients with basal-like TNBC. Together, our results offer preclinical validation of a novel RNAi delivery platform for therapeutic gene ablation in breast cancer, and they show that mTORC2-selective targeting is feasible and efficacious in this disease setting.Significance: This study describes a nanomedicine to effectively inhibit the growth regulatory kinase mTORC2 in a preclinical model of breast cancer, targeting an important pathogenic enzyme in that setting that has been undruggable to date. Cancer Res; 78(7); 1845-58. ©2018 AACR.
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Affiliation(s)
- Thomas A Werfel
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Shan Wang
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Meredith A Jackson
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Taylor E Kavanaugh
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Meghan Morrison Joly
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Linus H Lee
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Donna J Hicks
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Violeta Sanchez
- Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Paula Gonzalez Ericsson
- Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Kameron V Kilchrist
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Somtochukwu C Dimobi
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Samantha M Sarett
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Dana M Brantley-Sieders
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.,Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Rebecca S Cook
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee. .,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee.,Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee.
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20
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Williams MM, Lee L, Werfel T, Joly MMM, Hicks DJ, Rahman B, Elion D, McKernan C, Sanchez V, Estrada MV, Massarweh S, Elledge R, Duvall C, Cook RS. Intrinsic apoptotic pathway activation increases response to anti-estrogens in luminal breast cancers. Cell Death Dis 2018; 9:21. [PMID: 29343814 PMCID: PMC5833697 DOI: 10.1038/s41419-017-0072-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 08/10/2017] [Accepted: 08/17/2017] [Indexed: 01/26/2023]
Abstract
Estrogen receptor-α positive (ERα+) breast cancer accounts for approximately 70–80% of the nearly 25,0000 new cases of breast cancer diagnosed in the US each year. Endocrine-targeted therapies (those that block ERα activity) serve as the first line of treatment in most cases. Despite the proven benefit of endocrine therapies, however, ERα+ breast tumors can develop resistance to endocrine therapy, causing disease progression or relapse, particularly in the metastatic setting. Anti-apoptotic Bcl-2 family proteins enhance breast tumor cell survival, often promoting resistance to targeted therapies, including endocrine therapies. Herein, we investigated whether blockade of anti-apoptotic Bcl-2 family proteins could sensitize luminal breast cancers to anti-estrogen treatment. We used long-term estrogen deprivation (LTED) of human ERα+ breast cancer cell lines, an established model of sustained treatment with and acquired resistance to aromatase inhibitors (AIs), in combination with Bcl-2/Bcl-xL inhibition (ABT-263), finding that ABT-263 induced only limited tumor cell killing in LTED-selected cells in culture and in vivo. Interestingly, expression and activity of the Bcl-2-related factor Mcl-1 was increased in LTED cells. Genetic Mcl-1 ablation induced apoptosis in LTED-selected cells, and potently increased their sensitivity to ABT-263. Increased expression and activity of Mcl-1 was similarly seen in clinical breast tumor specimens treated with AI + the selective estrogen receptor downregulator fulvestrant. Delivery of Mcl-1 siRNA loaded into polymeric nanoparticles (MCL1 si-NPs) decreased Mcl-1 expression in LTED-selected and fulvestrant-treated cells, increasing tumor cell death and blocking tumor cell growth. These findings suggest that Mcl-1 upregulation in response to anti-estrogen treatment enhances tumor cell survival, decreasing response to therapeutic treatments. Therefore, strategies blocking Mcl-1 expression or activity used in combination with endocrine therapies would enhance tumor cell death.
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Affiliation(s)
- Michelle M Williams
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Linus Lee
- Department of Biomedical Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Thomas Werfel
- Department of Biomedical Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Meghan M Morrison Joly
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Donna J Hicks
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Bushra Rahman
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - David Elion
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Courtney McKernan
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Violeta Sanchez
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Monica V Estrada
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Suleiman Massarweh
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Richard Elledge
- Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, TX, USA
| | - Craig Duvall
- Department of Biomedical Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Rebecca S Cook
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA. .,Department of Biomedical Engineering, Vanderbilt University School of Engineering, Nashville, TN, USA. .,The Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
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21
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Redlich N, Robinson AM, Nickel KP, Stein AP, Wheeler DL, Adkins DR, Uppaluri R, Kimple RJ, Van Tine BA, Michel LS. Anti-Trop2 blockade enhances the therapeutic efficacy of ErbB3 inhibition in head and neck squamous cell carcinoma. Cell Death Dis 2018; 9:5. [PMID: 29305574 PMCID: PMC5849045 DOI: 10.1038/s41419-017-0029-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 08/02/2017] [Accepted: 09/20/2017] [Indexed: 12/22/2022]
Abstract
ErbB3 has been widely implicated in treatment resistance, but its role as a primary treatment target is less clear. Canonically ErbB3 requires EGFR or ErbB2 for activation, whereas these two established treatment targets are thought to signal independently of ErbB3. In this study, we show that ErbB3 is essential for tumor growth of treatment-naive HNSCC patient-derived xenografts. This ErbB3 dependency occurs via ErbB3-mediated control of EGFR activation and HIF1α stabilization, which require ErbB3 and its ligand neuregulin-1. Here, we show that ErbB3 antibody treatment selects for a population of ErbB3-persister cells that express high levels of the transmembrane protein Trop2 that we previously identified as an inhibitor of ErbB3. Co-treatment with anti-ErbB3 and anti-Trop2 antibodies is synergistic and produces a greater anti-tumor response than either antibody alone. Collectively, these data both compel a revision of ErbB-family signaling and delineate a strategy for its effective inhibition in HNSCC.
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Affiliation(s)
| | - Anthony M Robinson
- Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Kwangok P Nickel
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, and University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - Andrew P Stein
- School of Medicine, Department of Otolaryngology, Case Western Reserve University, Cleveland, OH, USA
| | - Deric L Wheeler
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, and University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - Douglas R Adkins
- Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | | | - Randall J Kimple
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, and University of Wisconsin Carbone Cancer Center, Madison, WI, USA.
| | - Brian A Van Tine
- Washington University in St. Louis School of Medicine, St. Louis, MO, USA.
| | - Loren S Michel
- Memorial Sloan-Kettering Cancer Center, Monmouth, NJ, USA
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22
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Abstract
Breast cancer affects approximately 1 in 8 women, and it is estimated that over 246,660 women in the USA will be diagnosed with breast cancer in 2016. Breast cancer mortality has decline over the last two decades due to early detection and improved treatment. Over the last few years, there is mounting evidence to demonstrate the prominent role of receptor tyrosine kinases (RTKs) in tumor initiation and progression, and targeted therapies against the RTKs have been developed, evaluated in clinical trials, and approved for many cancer types, including breast cancer. However, not all breast cancers are the same as evidenced by the multiple subtypes of the disease, with some more aggressive than others, showing differential treatment response to different types of drugs. Moreover, in addition to canonical signaling from the cell surface, many RTKs can be trafficked to various subcellular compartments, e.g., the multivesicular body and nucleus, where they carry out critical cellular functions, such as cell proliferation, DNA replication and repair, and therapeutic resistance. In this review, we provide a brief summary on the role of a selected number of RTKs in breast cancer and describe some mechanisms of resistance to targeted therapies.
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Affiliation(s)
- Jennifer L Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA.,Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, 404, Taiwan.,Department of Biotechnology, Asia University, Taichung, 413, Taiwan
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA. .,Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, 404, Taiwan. .,Department of Biotechnology, Asia University, Taichung, 413, Taiwan.
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23
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Williams MM, Vaught DB, Joly MM, Hicks DJ, Sanchez V, Owens P, Rahman B, Elion DL, Balko JM, Cook RS. ErbB3 drives mammary epithelial survival and differentiation during pregnancy and lactation. Breast Cancer Res 2017; 19:105. [PMID: 28886748 PMCID: PMC5591538 DOI: 10.1186/s13058-017-0893-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 08/07/2017] [Indexed: 01/05/2023] Open
Abstract
Background During pregnancy, as the mammary gland prepares for synthesis and delivery of milk to newborns, a luminal mammary epithelial cell (MEC) subpopulation proliferates rapidly in response to systemic hormonal cues that activate STAT5A. While the receptor tyrosine kinase ErbB4 is required for STAT5A activation in MECs during pregnancy, it is unclear how ErbB3, a heterodimeric partner of ErbB4 and activator of phosphatidyl inositol-3 kinase (PI3K) signaling, contributes to lactogenic expansion of the mammary gland. Methods We assessed mRNA expression levels by expression microarray of mouse mammary glands harvested throughout pregnancy and lactation. To study the role of ErbB3 in mammary gland lactogenesis, we used transgenic mice expressing WAP-driven Cre recombinase to generate a mouse model in which conditional ErbB3 ablation occurred specifically in alveolar mammary epithelial cells (aMECs). Results Profiling of RNA from mouse MECs isolated throughout pregnancy revealed robust Erbb3 induction during mid-to-late pregnancy, a time point when aMECs proliferate rapidly and undergo differentiation to support milk production. Litters nursed by ErbB3KO dams weighed significantly less when compared to litters nursed by ErbB3WT dams. Further analysis revealed substantially reduced epithelial content, decreased aMEC proliferation, and increased aMEC cell death during late pregnancy. Consistent with the potent ability of ErbB3 to activate cell survival through the PI3K/Akt pathway, we found impaired Akt phosphorylation in ErbB3KO samples, as well as impaired expression of STAT5A, a master regulator of lactogenesis. Constitutively active Akt rescued cell survival in ErbB3-depleted aMECs, but failed to restore STAT5A expression or activity. Interestingly, defects in growth and survival of ErbB3KO aMECs as well as Akt phosphorylation, STAT5A activity, and expression of milk-encoding genes observed in ErbB3KO MECs progressively improved between late pregnancy and lactation day 5. We found a compensatory upregulation of ErbB4 activity in ErbB3KO mammary glands. Enforced ErbB4 expression alleviated the consequences of ErbB3 ablation in aMECs, while combined ablation of both ErbB3 and ErbB4 exaggerated the phenotype. Conclusions These studies demonstrate that ErbB3, like ErbB4, enhances lactogenic expansion and differentiation of the mammary gland during pregnancy, through activation of Akt and STAT5A, two targets crucial for lactation. Electronic supplementary material The online version of this article (doi:10.1186/s13058-017-0893-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Michelle M Williams
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - David B Vaught
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Meghan Morrison Joly
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Donna J Hicks
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Violeta Sanchez
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Philip Owens
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Bushra Rahman
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - David L Elion
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Justin M Balko
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Rebecca S Cook
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA.
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24
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Morrison Joly M, Williams MM, Hicks DJ, Jones B, Sanchez V, Young CD, Sarbassov DD, Muller WJ, Brantley-Sieders D, Cook RS. Two distinct mTORC2-dependent pathways converge on Rac1 to drive breast cancer metastasis. Breast Cancer Res 2017; 19:74. [PMID: 28666462 PMCID: PMC5493112 DOI: 10.1186/s13058-017-0868-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 06/14/2017] [Indexed: 02/06/2023] Open
Abstract
Background The importance of the mTOR complex 2 (mTORC2) signaling complex in tumor progression is becoming increasingly recognized. HER2-amplified breast cancers use Rictor/mTORC2 signaling to drive tumor formation, tumor cell survival and resistance to human epidermal growth factor receptor 2 (HER2)-targeted therapy. Cell motility, a key step in the metastatic process, can be activated by mTORC2 in luminal and triple negative breast cancer cell lines, but its role in promoting metastases from HER2-amplified breast cancers is not yet clear. Methods Because Rictor is an obligate cofactor of mTORC2, we genetically engineered Rictor ablation or overexpression in mouse and human HER2-amplified breast cancer models for modulation of mTORC2 activity. Signaling through mTORC2-dependent pathways was also manipulated using pharmacological inhibitors of mTOR, Akt, and Rac. Signaling was assessed by western analysis and biochemical pull-down assays specific for Rac-GTP and for active Rac guanine nucleotide exchange factors (GEFs). Metastases were assessed from spontaneous tumors and from intravenously delivered tumor cells. Motility and invasion of cells was assessed using Matrigel-coated transwell assays. Results We found that Rictor ablation potently impaired, while Rictor overexpression increased, metastasis in spontaneous and intravenously seeded models of HER2-overexpressing breast cancers. Additionally, migration and invasion of HER2-amplified human breast cancer cells was diminished in the absence of Rictor, or upon pharmacological mTOR kinase inhibition. Active Rac1 was required for Rictor-dependent invasion and motility, which rescued invasion/motility in Rictor depleted cells. Rictor/mTORC2-dependent dampening of the endogenous Rac1 inhibitor RhoGDI2, a factor that correlated directly with increased overall survival in HER2-amplified breast cancer patients, promoted Rac1 activity and tumor cell invasion/migration. The mTORC2 substrate Akt did not affect RhoGDI2 dampening, but partially increased Rac1 activity through the Rac-GEF Tiam1, thus partially rescuing cell invasion/motility. The mTORC2 effector protein kinase C (PKC)α did rescue Rictor-mediated RhoGDI2 downregulation, partially rescuing Rac-guanosine triphosphate (GTP) and migration/motility. Conclusion These findings suggest that mTORC2 uses two coordinated pathways to activate cell invasion/motility, both of which converge on Rac1. Akt signaling activates Rac1 through the Rac-GEF Tiam1, while PKC signaling dampens expression of the endogenous Rac1 inhibitor, RhoGDI2. Electronic supplementary material The online version of this article (doi:10.1186/s13058-017-0868-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Meghan Morrison Joly
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Michelle M Williams
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Donna J Hicks
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Bayley Jones
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA
| | - Violeta Sanchez
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Christian D Young
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Dos D Sarbassov
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - William J Muller
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Dana Brantley-Sieders
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Rebecca S Cook
- Department of Cancer Biology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Rm 749 Preston Research Building, Nashville, TN, 37232, USA.
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25
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Bai J, Zhou G, Qiu Y, Hu Y, Liu J, Zhao J, Zhang S, Zhang J. HSP90 inhibitor AUY922 can reverse Fulvestrant induced feedback reaction in human breast cancer cells. Cancer Sci 2017; 108:1177-1184. [PMID: 28301080 PMCID: PMC5480065 DOI: 10.1111/cas.13238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 02/27/2017] [Accepted: 03/06/2017] [Indexed: 01/09/2023] Open
Abstract
Hormone therapy has become one of the main strategies for breast cancer, however, many estrogen receptor (ER) positive patients end in tumor collapse due to initial or acquired resistance to hormone treatment, which includes Fulvestrant. Here we report that ErbB receptors and downstream PI3K/AKT and ERK pathway have been reactivated after treatment of Fulvestrant in ER positive MCF‐7 and T47D cells, which are related to Fulvestrant resistance. HSP90 is a universally expressed chaperone protein and plays a vital role in both normal and cancer cells, HSP90 inhibitor AUY922 can reverse this feedback reactivation effect of Fulvestrant by targeting multiple proteins related in ErbB receptors, PI3K/AKT and ERK pathway, which is much better than single targeting inhibitors. We also consolidate these effects in human fresh breast tumors. Combination of AUY922 and Fulvestrant may become a promising therapy strategy in breast cancer treatment.
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Affiliation(s)
- Jingchao Bai
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Guanglin Zhou
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Yufan Qiu
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Yunhui Hu
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Jingjing Liu
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Jing Zhao
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China.,Department of Lymphoma, Tianjin Medical university Cancer Hospital, Sino-US Center for Lymphoma and Leukemia, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Sheng Zhang
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Jin Zhang
- Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
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26
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Desai K, Aiyappa R, Prabhu JS, Nair MG, Lawrence PV, Korlimarla A, CE A, Alexander A, Kaluve RS, Manjunath S, Correa M, Srinath BS, Patil S, Kalamdani A, Prasad MSN, Sridhar TS. HR+HER2− breast cancers with growth factor receptor–mediated EMT have a poor prognosis and lapatinib downregulates EMT in MCF-7 cells. Tumour Biol 2017; 39:1010428317695028. [DOI: 10.1177/1010428317695028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Despite an overall good prognosis, a significant proportion of patients with hormone receptor positive human epidermal growth factor receptor 2 negative breast cancers develop distant metastases. The metastatic potential of epithelial cells is known to be regulated by tumor–stromal interaction and mediated by epithelial-to-mesenchymal transition. Hormone receptor positive human epidermal growth factor receptor 2 negative tumors were used to estimate markers of epithelial-to-mesenchymal transition, and the luminal breast cancer cell line MCF-7 was used to examine the interactions between integrins and growth factor receptors in causation of epithelial-to-mesenchymal transition. A total of 140 primary tumors were sub-divided into groups enriched for the markers of epithelial-to-mesenchymal transition (snail family transcriptional repressor 2 and integrin β6) versus those with low levels. Within the epithelial-to-mesenchymal transition+ tumors, there was a positive correlation between the transcripts of integrin β6 and growth factor receptors—human epidermal growth factor receptor 2 and epidermal growth factor receptor. In tumors enriched for epithelial-to-mesenchymal transition markers, patients with tumors with the highest quartile of growth factor receptor transcripts had a shorter disease-free survival compared to patients with low growth factor receptor expression by Kaplan–Meier analysis (log rank, p = 0.03). Epithelial-to-mesenchymal transition was induced in MCF-7 cells by treatment with transforming growth factor beta 1 and confirmed by upregulation of SNAI1 and SNAI2 transcripts, increase of vimentin and integrin β6 protein, and repression of E-cadherin. Treatment of these cells with the dual-specificity tyrosine-kinase inhibitor lapatinib led to downregulation of epithelial-to-mesenchymal transition as indicated by lower levels of SNAI1 and SNAI2 transcripts, integrin αvβ6, and matrix metalloproteinase 9 protein. The results suggest that synergistic interactions between growth factor receptors and integrin β6 could mediate epithelial-to-mesenchymal transition and migration in a subset of luminal breast cancers and lapatinib might be effective in disrupting this interaction.
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Affiliation(s)
- Krisha Desai
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Radhika Aiyappa
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Jyothi S Prabhu
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Madhumathy G Nair
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Patrick Varun Lawrence
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Aruna Korlimarla
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Anupama CE
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Annie Alexander
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | - Rohini S Kaluve
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
| | | | | | - BS Srinath
- Sri Shankara Cancer Hospital and Research Centre, Bangalore, India
| | - Shekhar Patil
- Sri Shankara Cancer Hospital and Research Centre, Bangalore, India
| | - Anjali Kalamdani
- Sri Shankara Cancer Hospital and Research Centre, Bangalore, India
| | - MSN Prasad
- Sri Shankara Cancer Hospital and Research Centre, Bangalore, India
| | - TS Sridhar
- Division of Molecular Medicine, St. John’s Research Institute, St. John’s National Academy of Health Sciences, Bangalore, India
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27
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Strotbek M, Schmid S, Sánchez-González I, Boerries M, Busch H, Olayioye MA. miR-181 elevates Akt signaling by co-targeting PHLPP2 and INPP4B phosphatases in luminal breast cancer. Int J Cancer 2017; 140:2310-2320. [DOI: 10.1002/ijc.30661] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 02/01/2017] [Accepted: 02/13/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Michaela Strotbek
- Institute of Cell Biology and Immunology, University of Stuttgart; 70569 Stuttgart Germany
| | - Simone Schmid
- Institute of Cell Biology and Immunology, University of Stuttgart; 70569 Stuttgart Germany
| | | | - Melanie Boerries
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg; 79104 Freiburg Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ); Heidelberg 69120 Germany
| | - Hauke Busch
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg; 79104 Freiburg Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ); Heidelberg 69120 Germany
- Lübeck Institute of Experimental Dermatology, University of Lübeck; Lübeck Germany
| | - Monilola A. Olayioye
- Institute of Cell Biology and Immunology, University of Stuttgart; 70569 Stuttgart Germany
- Stuttgart Research Center Systems Biology (SRCSB), University of Stuttgart; Stuttgart Germany
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28
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Li P, Zhou H, Di G, Liu J, Liu Y, Wang Z, Sun Y, Duan H, Sun J. Mesenchymal stem cell-conditioned medium promotes MDA-MB-231 cell migration and inhibits A549 cell migration by regulating insulin receptor and human epidermal growth factor receptor 3 phosphorylation. Oncol Lett 2017; 13:1581-1586. [PMID: 28454294 PMCID: PMC5403177 DOI: 10.3892/ol.2017.5641] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 10/18/2016] [Indexed: 01/10/2023] Open
Abstract
Various in vitro and in vivo studies have linked mesenchymal stem cells (MSCs) with cancer, but little is known about the effect of MSCs on tumor progression. The present study aimed to analyze the role of the MSCs from different tissues, consisting of human bone marrow, adipose and the umbilical cord tissues, and the heterogeneity of tumors in tumor progression. By collecting the culture supernatants of MSCs as MSC-conditioned media (CMs), the present study found that MSC-CM produces no significant effect on the proliferation of MDA-MB-231 and A549 tumor cells. The migration of MDA-MB-231 cells was enhanced upon incubation with MSC-CM, while that of A549 cells was inhibited. Furthermore, the phosphorylation of insulin receptors (IRs) was upregulated in MSC-CM-treated MDA-MB-231 cells, while in MSC-CM-treated A549 cells, the phosphorylation of human epidermal growth factor receptor 3 (Her3) was downregulated. Taken together, the findings suggest that the phosphorylation of IR and Her3 may contribute to the discrepant effects of MSC-CM on the migration of the 2 cell lines.
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Affiliation(s)
- Pengfei Li
- Department of Oncology, Liaoning Medical College, Jinzhou, Liaoning 121000, P.R. China.,Department of Hematology and Oncology, The First Affiliated Hospital of General Hospital of Chinese People's Liberation Army, Beijing 100039, P.R. China.,Department of Hematology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Hongwei Zhou
- Department of Hematology and Oncology, The First Affiliated Hospital of General Hospital of Chinese People's Liberation Army, Beijing 100039, P.R. China
| | - Guohu Di
- Beijing Institute of Radiation Medicine, Beijing 100850, P.R. China
| | - Jin Liu
- Beijing Institute of Radiation Medicine, Beijing 100850, P.R. China
| | - Yang Liu
- Beijing Institute of Radiation Medicine, Beijing 100850, P.R. China
| | - Zhihong Wang
- Department of Hematology and Oncology, The First Affiliated Hospital of General Hospital of Chinese People's Liberation Army, Beijing 100039, P.R. China
| | - Yinxuan Sun
- The School of Management, South China University of Technology, Guangzhou, Guangdong 510000, P.R. China
| | - Haifeng Duan
- Beijing Institute of Radiation Medicine, Beijing 100850, P.R. China
| | - Junzhong Sun
- Department of Oncology, Liaoning Medical College, Jinzhou, Liaoning 121000, P.R. China.,Department of Hematology and Oncology, The First Affiliated Hospital of General Hospital of Chinese People's Liberation Army, Beijing 100039, P.R. China
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29
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Saunus JM, McCart Reed AE, Lim ZL, Lakhani SR. Breast Cancer Brain Metastases: Clonal Evolution in Clinical Context. Int J Mol Sci 2017; 18:ijms18010152. [PMID: 28098771 PMCID: PMC5297785 DOI: 10.3390/ijms18010152] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 12/22/2016] [Accepted: 12/27/2016] [Indexed: 02/01/2023] Open
Abstract
Brain metastases are highly-evolved manifestations of breast cancer arising in a unique microenvironment, giving them exceptional adaptability in the face of new extrinsic pressures. The incidence is rising in line with population ageing, and use of newer therapies that stabilise metastatic disease burden with variable efficacy throughout the body. Historically, there has been a widely-held view that brain metastases do not respond to circulating therapeutics because the blood-brain-barrier (BBB) restricts their uptake. However, emerging data are beginning to paint a more complex picture where the brain acts as a sanctuary for dormant, subclinical proliferations that are initially protected by the BBB, but then exposed to dynamic selection pressures as tumours mature and vascular permeability increases. Here, we review key experimental approaches and landmark studies that have charted the genomic landscape of breast cancer brain metastases. These findings are contextualised with the factors impacting on clonal outgrowth in the brain: intrinsic breast tumour cell capabilities required for brain metastatic fitness, and the neural niche, which is initially hostile to invading cells but then engineered into a tumour-support vehicle by the successful minority. We also discuss how late detection, abnormal vascular perfusion and interstitial fluid dynamics underpin the recalcitrant clinical behaviour of brain metastases, and outline active clinical trials in the context of precision management.
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Affiliation(s)
- Jodi M Saunus
- The University of Queensland (UQ), UQ Centre for Clinical Research, Herston, Queensland 4029, Australia.
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia.
| | - Amy E McCart Reed
- The University of Queensland (UQ), UQ Centre for Clinical Research, Herston, Queensland 4029, Australia.
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia.
| | - Zhun Leong Lim
- The University of Queensland (UQ), UQ Centre for Clinical Research, Herston, Queensland 4029, Australia.
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia.
| | - Sunil R Lakhani
- The University of Queensland (UQ), UQ Centre for Clinical Research, Herston, Queensland 4029, Australia.
- Pathology Queensland, Royal Brisbane Women's Hospital, Herston, Queensland 4029, Australia.
- UQ School of Medicine, Herston, Queensland 4006, Australia.
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30
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Systems biology driving drug development: from design to the clinical testing of the anti-ErbB3 antibody seribantumab (MM-121). NPJ Syst Biol Appl 2017; 3:16034. [PMID: 28725482 PMCID: PMC5516865 DOI: 10.1038/npjsba.2016.34] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/19/2016] [Accepted: 09/20/2016] [Indexed: 12/14/2022] Open
Abstract
The ErbB family of receptor tyrosine kinases comprises four members: epidermal growth factor receptor (EGFR/ErbB1), human EGFR 2 (HER2/ErbB2), ErbB3/HER3, and ErbB4/HER4. The first two members of this family, EGFR and HER2, have been implicated in tumorigenesis and cancer progression for several decades, and numerous drugs have now been approved that target these two proteins. Less attention, however, has been paid to the role of this family in mediating cancer cell survival and drug tolerance. To better understand the complex signal transduction network triggered by the ErbB receptor family, we built a computational model that quantitatively captures the dynamics of ErbB signaling. Sensitivity analysis identified ErbB3 as the most critical activator of phosphoinositide 3-kinase (PI3K) and Akt signaling, a key pro-survival pathway in cancer cells. Based on this insight, we designed a fully human monoclonal antibody, seribantumab (MM-121), that binds to ErbB3 and blocks signaling induced by the extracellular growth factors heregulin (HRG) and betacellulin (BTC). In this article, we present some of the key preclinical simulations and experimental data that formed the scientific foundation for three Phase 2 clinical trials in metastatic cancer. These trials were designed to determine if patients with advanced malignancies would derive benefit from the addition of seribantumab to standard-of-care drugs in platinum-resistant/refractory ovarian cancer, hormone receptor-positive HER2-negative breast cancer, and EGFR wild-type non-small cell lung cancer (NSCLC). From preclinical studies we learned that basal levels of ErbB3 phosphorylation correlate with response to seribantumab monotherapy in mouse xenograft models. As ErbB3 is rapidly dephosphorylated and hence difficult to measure clinically, we used the computational model to identify a set of five surrogate biomarkers that most directly affect the levels of p-ErbB3: HRG, BTC, EGFR, HER2, and ErbB3. Preclinically, the combined information from these five markers was sufficient to accurately predict which xenograft models would respond to seribantumab, and the single-most accurate predictor was HRG. When tested clinically in ovarian, breast and lung cancer, HRG mRNA expression was found to be both potentially prognostic of insensitivity to standard therapy and potentially predictive of benefit from the addition of seribantumab to standard of care therapy in all three indications. In addition, it was found that seribantumab was most active in cancers with low levels of HER2, consistent with preclinical predictions. Overall, our clinical studies and studies of others suggest that HRG expression defines a drug-tolerant cancer cell phenotype that persists in most solid tumor indications and may contribute to rapid clinical progression. To our knowledge, this is the first example of a drug designed and clinically tested using the principles of Systems Biology.
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Okkenhaug K, Graupera M, Vanhaesebroeck B. Targeting PI3K in Cancer: Impact on Tumor Cells, Their Protective Stroma, Angiogenesis, and Immunotherapy. Cancer Discov 2016; 6:1090-1105. [PMID: 27655435 PMCID: PMC5293166 DOI: 10.1158/2159-8290.cd-16-0716] [Citation(s) in RCA: 188] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/02/2016] [Indexed: 12/28/2022]
Abstract
The PI3K pathway is hyperactivated in most cancers, yet the capacity of PI3K inhibitors to induce tumor cell death is limited. The efficacy of PI3K inhibition can also derive from interference with the cancer cells' ability to respond to stromal signals, as illustrated by the approved PI3Kδ inhibitor idelalisib in B-cell malignancies. Inhibition of the leukocyte-enriched PI3Kδ or PI3Kγ may unleash antitumor T-cell responses by inhibiting regulatory T cells and immune-suppressive myeloid cells. Moreover, tumor angiogenesis may be targeted by PI3K inhibitors to enhance cancer therapy. Future work should therefore also explore the effects of PI3K inhibitors on the tumor stroma, in addition to their cancer cell-intrinsic impact. SIGNIFICANCE The PI3K pathway extends beyond the direct regulation of cancer cell proliferation and survival. In B-cell malignancies, targeting PI3K purges the tumor cells from their protective microenvironment. Moreover, we propose that PI3K isoform-selective inhibitors may be exploited in the context of cancer immunotherapy and by targeting angiogenesis to improve drug and immune cell delivery. Cancer Discov; 6(10); 1090-105. ©2016 AACR.
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Affiliation(s)
- Klaus Okkenhaug
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Babraham Research Campus, Cambridge, United Kingdom.
| | - Mariona Graupera
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.
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32
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Morrison Joly M, Hicks DJ, Jones B, Sanchez V, Estrada MV, Young C, Williams M, Rexer BN, Sarbassov DD, Muller WJ, Brantley-Sieders D, Cook RS. Rictor/mTORC2 Drives Progression and Therapeutic Resistance of HER2-Amplified Breast Cancers. Cancer Res 2016; 76:4752-64. [PMID: 27197158 DOI: 10.1158/0008-5472.can-15-3393] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 03/16/2016] [Indexed: 02/01/2023]
Abstract
HER2 overexpression drives Akt signaling and cell survival and HER2-enriched breast tumors have a poor outcome when Akt is upregulated. Akt is activated by phosphorylation at T308 via PI3K and S473 via mTORC2. The importance of PI3K-activated Akt signaling is well documented in HER2-amplified breast cancer models, but the significance of mTORC2-activated Akt signaling in this setting remains uncertain. We report here that the mTORC2 obligate cofactor Rictor is enriched in HER2-amplified samples, correlating with increased phosphorylation at S473 on Akt. In invasive breast cancer specimens, Rictor expression was upregulated significantly compared with nonmalignant tissues. In a HER2/Neu mouse model of breast cancer, genetic ablation of Rictor decreased cell survival and phosphorylation at S473 on Akt, delaying tumor latency, penetrance, and burden. In HER2-amplified cells, exposure to an mTORC1/2 dual kinase inhibitor decreased Akt-dependent cell survival, including in cells resistant to lapatinib, where cytotoxicity could be restored. We replicated these findings by silencing Rictor in breast cancer cell lines, but not silencing the mTORC1 cofactor Raptor (RPTOR). Taken together, our findings establish that Rictor/mTORC2 signaling drives Akt-dependent tumor progression in HER2-amplified breast cancers, rationalizing clinical investigation of dual mTORC1/2 kinase inhibitors and developing mTORC2-specific inhibitors for use in this setting. Cancer Res; 76(16); 4752-64. ©2016 AACR.
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Affiliation(s)
| | - Donna J Hicks
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee
| | - Bayley Jones
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee
| | - Violeta Sanchez
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Christian Young
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michelle Williams
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee
| | - Brent N Rexer
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Dos D Sarbassov
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Dana Brantley-Sieders
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee. The Vanderbilt-Ingram Cancer Center at Vanderbilt University, Vanderbilt University, Nashville, Tennessee
| | - Rebecca S Cook
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee. The Vanderbilt-Ingram Cancer Center at Vanderbilt University, Vanderbilt University, Nashville, Tennessee.
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33
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Ha JR, Siegel PM, Ursini-Siegel J. The Tyrosine Kinome Dictates Breast Cancer Heterogeneity and Therapeutic Responsiveness. J Cell Biochem 2016; 117:1971-90. [PMID: 27392311 DOI: 10.1002/jcb.25561] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 03/24/2016] [Indexed: 12/13/2022]
Abstract
Phospho-tyrosine signaling networks control numerous biological processes including cellular differentiation, cell growth and survival, motility, and invasion. Aberrant regulation of the tyrosine kinome is a hallmark of malignancy and influences all stages of breast cancer progression, from initiation to the development of metastatic disease. The success of specific tyrosine kinase inhibitors strongly validates the clinical relevance of tyrosine phosphorylation networks in breast cancer pathology. However, a significant degree of redundancy exists within the tyrosine kinome. Numerous receptor and cytoplasmic tyrosine kinases converge on a core set of signaling regulators, including adaptor proteins and tyrosine phosphatases, to amplify pro-tumorigenic signal transduction pathways. Mutational activation, amplification, or overexpression of one or more components of the tyrosine kinome represents key contributing events responsible for the tumor heterogeneity that is observed in breast cancers. It is this molecular heterogeneity that has become the most significant barrier to durable clinical responses due to the development of therapeutic resistance. This review focuses on recent literature that supports a prominent role for specific components of the tyrosine kinome in the emergence of unique breast cancer subtypes and in shaping breast cancer plasticity, sensitivity to targeted therapies, and the eventual emergence of acquired resistance. J. Cell. Biochem. 117: 1971-1990, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jacqueline R Ha
- Lady Davis Institute for Medical Research, Montreal, Quebec, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada.,Department of Oncology, McGill University, Montreal, Quebec, Canada
| | - Peter M Siegel
- Department of Medicine, McGill University, Montreal, Quebec, Canada.,Department of Oncology, McGill University, Montreal, Quebec, Canada.,Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada.,Department of Biochemistry, McGill University, Montreal, Quebec, Canada.,Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec, Canada
| | - Josie Ursini-Siegel
- Lady Davis Institute for Medical Research, Montreal, Quebec, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada.,Department of Oncology, McGill University, Montreal, Quebec, Canada
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34
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Weitzenfeld P, Kossover O, Körner C, Meshel T, Wiemann S, Seliktar D, Legler DF, Ben-Baruch A. Chemokine axes in breast cancer: factors of the tumor microenvironment reshape the CCR7-driven metastatic spread of luminal-A breast tumors. J Leukoc Biol 2016; 99:1009-25. [PMID: 26936935 DOI: 10.1189/jlb.3ma0815-373r] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 02/04/2016] [Indexed: 12/16/2022] Open
Abstract
Chemokine axes have been shown to mediate site-specific metastasis in breast cancer, but their relevance to different subtypes has been hardly addressed. Here, with the focus on the CCR7-CCL21 axis, patient datasets demonstrated that luminal-A tumors express relatively low CCR7 levels compared with more aggressive disease subtypes. Furthermore, lymph node metastasis was not associated with high CCR7 levels in luminal-A patients. The metastatic pattern of luminal-A breast tumors may be influenced by the way luminal-A tumor cells interpret signals provided by factors of the primary tumor microenvironment. Thus, CCR7-expressing human luminal-A cells were stimulated simultaneously by factors representing 3 tumor microenvironment arms typical of luminal-A tumors, hormonal, inflammatory, and growth stimulating: estrogen + TNF-α + epidermal growth factor. Such tumor microenvironment stimulation down-regulated the migration of CCR7-expressing tumor cells toward CCL21 and inhibited the formation of directional protrusions toward CCL21 in a novel 3-dimensional hydrogel system. CCL21-induced migration of CCR7-expressing tumor cells depended on PI3K and MAPK activation; however, when CCR7-expressing cancer cells were prestimulated by tumor microenvironment factors, CCL21 could not effectively activate these signaling pathways. In vivo, pre-exposure of the tumor cells to tumor microenvironment factors has put restraints on CCL21-mediated lymph node-homing cues and shifted the metastatic pattern of CCR7-expressing cells to the aggressive phenotype of dissemination to bones. Several of the aspects were also studied in the CXCR4-CXCL12 system, demonstrating similar patient and in vitro findings. Thus, we provide novel evidence to subtype-specific regulation of the CCR7-CCL21 axis, with more general implications to chemokine-dependent patterns of metastatic spread, revealing differential regulation in the luminal-A subtype.
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Affiliation(s)
- Polina Weitzenfeld
- Department of Cell Research and Immunology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Olga Kossover
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Cindy Körner
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany; and
| | - Tsipi Meshel
- Department of Cell Research and Immunology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany; and
| | - Dror Seliktar
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Daniel F Legler
- Biotechnology Institute Thurgau at the University of Konstanz, Konstanz, Germany
| | - Adit Ben-Baruch
- Department of Cell Research and Immunology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel;
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35
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Reijm EA, Sieuwerts AM, Smid M, Vries JBD, Mostert B, Onstenk W, Peeters D, Dirix LY, Seynaeve CM, Jager A, de Jongh FE, Hamberg P, van Galen A, Kraan J, Jansen MPHM, Gratama JW, Foekens JA, Martens JWM, Berns EMJJ, Sleijfer S. An 8-gene mRNA expression profile in circulating tumor cells predicts response to aromatase inhibitors in metastatic breast cancer patients. BMC Cancer 2016; 16:123. [PMID: 26892682 PMCID: PMC4759736 DOI: 10.1186/s12885-016-2155-y] [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: 09/04/2015] [Accepted: 02/10/2016] [Indexed: 12/29/2022] Open
Abstract
Background Molecular characterization of circulating tumor cells (CTC) is promising for personalized medicine. We aimed to identify a CTC gene expression profile predicting outcome to first-line aromatase inhibitors in metastatic breast cancer (MBC) patients. Methods: CTCs were isolated from 78 MBC patients before treatment start. mRNA expression levels of 96 genes were measured by quantitative reverse transcriptase polymerase chain reaction. After applying predefined exclusion criteria based on lack of sufficient RNA quality and/or quantity, the data from 45 patients were used to construct a gene expression profile to predict poor responding patients, defined as disease progression or death <9 months, by a leave-one-out cross validation. Results Of the 45 patients, 19 were clinically classified as poor responders. To identify them, the 75 % most variable genes were used to select genes differentially expressed between good and poor responders. An 8-gene CTC predictor was significantly associated with outcome (Hazard Ratio [HR] 4.40, 95 % Confidence Interval [CI]: 2.17–8.92, P < 0.001). This predictor identified poor responding patients with a sensitivity of 63 % and a positive predictive value of 75 %, while good responding patients were correctly predicted in 85 % of the cases. In multivariate Cox regression analysis, including CTC count at baseline, the 8-gene CTC predictor was the only factor independently associated with outcome (HR 4.59 [95 % CI: 2.11–9.56], P < 0.001). This 8-gene signature was not associated with outcome in a group of 71 MBC patients treated with systemic treatments other than AI. Conclusions An 8-gene CTC predictor was identified which discriminates good and poor outcome to first-line aromatase inhibitors in MBC patients. Although results need to be validated, this study underscores the potential of molecular characterization of CTCs. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2155-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Esther A Reijm
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Anieta M Sieuwerts
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Marcel Smid
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Joan Bolt-de Vries
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Bianca Mostert
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Wendy Onstenk
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Dieter Peeters
- Translational Cancer Research Unit, Oncology Center GZA Hospitals Sint-Augustinus and Department of Oncology, University of Antwerp, Antwerp, Belgium
| | - Luc Y Dirix
- Translational Cancer Research Unit, Oncology Center GZA Hospitals Sint-Augustinus and Department of Oncology, University of Antwerp, Antwerp, Belgium
| | - Caroline M Seynaeve
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Agnes Jager
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Felix E de Jongh
- Department of Internal Medicine, Ikazia Hospital, Rotterdam, The Netherlands
| | - Paul Hamberg
- Department of Internal Medicine, Sint Franciscus Gasthuis, Rotterdam, The Netherlands
| | - Anne van Galen
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Jaco Kraan
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Maurice P H M Jansen
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Jan W Gratama
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - John A Foekens
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - John W M Martens
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Els M J J Berns
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands
| | - Stefan Sleijfer
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC - Cancer Institute, Erasmus University Medical Center, Room He 116, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands.
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Bosch A, Li Z, Bergamaschi A, Ellis H, Toska E, Prat A, Tao JJ, Spratt DE, Viola-Villegas NT, Castel P, Minuesa G, Morse N, Rodón J, Ibrahim Y, Cortes J, Perez-Garcia J, Galvan P, Grueso J, Guzman M, Katzenellenbogen JA, Kharas M, Lewis JS, Dickler M, Serra V, Rosen N, Chandarlapaty S, Scaltriti M, Baselga J. PI3K inhibition results in enhanced estrogen receptor function and dependence in hormone receptor-positive breast cancer. Sci Transl Med 2016; 7:283ra51. [PMID: 25877889 DOI: 10.1126/scitranslmed.aaa4442] [Citation(s) in RCA: 246] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Activating mutations of PIK3CA are the most frequent genomic alterations in estrogen receptor (ER)-positive breast tumors, and selective phosphatidylinositol 3-kinase α (PI3Kα) inhibitors are in clinical development. The activity of these agents, however, is not homogeneous, and only a fraction of patients bearing PIK3CA-mutant ER-positive tumors benefit from single-agent administration. Searching for mechanisms of resistance, we observed that suppression of PI3K signaling results in induction of ER-dependent transcriptional activity, as demonstrated by changes in expression of genes containing ER-binding sites and increased occupancy by the ER of promoter regions of up-regulated genes. Furthermore, expression of ESR1 mRNA and ER protein were also increased upon PI3K inhibition. These changes in gene expression were confirmed in vivo in xenografts and patient-derived models and in tumors from patients undergoing treatment with the PI3Kα inhibitor BYL719. The observed effects on transcription were enhanced by the addition of estradiol and suppressed by the anti-ER therapies fulvestrant and tamoxifen. Fulvestrant markedly sensitized ER-positive tumors to PI3Kα inhibition, resulting in major tumor regressions in vivo. We propose that increased ER transcriptional activity may be a reactive mechanism that limits the activity of PI3K inhibitors and that combined PI3K and ER inhibition is a rational approach to target these tumors.
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Affiliation(s)
- Ana Bosch
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Zhiqiang Li
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Anna Bergamaschi
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, 524 Burrill Hall, Urbana, IL 61801, USA
| | - Haley Ellis
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Eneda Toska
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Aleix Prat
- Translational Genomics Group, Vall d'Hebron Institute of Oncology (VHIO), Passeig Vall d'Hebron 119-129, Barcelona 08035, Spain. Translational Genomics and Targeted Therapeutics in Solid Tumors, August Pi i Sunyer Biomedical Research Institute, Hospital Clinic Barcelona, C/Rosselló 149-153, Barcelona 08035, Spain
| | - Jessica J Tao
- Massachusetts General Hospital Cancer Center and Harvard Medical School, 425 13th Street, Charlestown, MA 02129, USA
| | - Daniel E Spratt
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | - Pau Castel
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Gerard Minuesa
- Molecular Pharmacology and Chemistry Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Natasha Morse
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Jordi Rodón
- Department of Medical Oncology, VHIO, Barcelona 08035, Spain. Universitat Autònoma de Barcelona, Plaza Cívica, Campus UAB, 08193 Bellaterra, Spain
| | - Yasir Ibrahim
- Experimental Therapeutics Group, VHIO, Barcelona 08035, Spain
| | - Javier Cortes
- Department of Medical Oncology, VHIO, Barcelona 08035, Spain
| | | | - Patricia Galvan
- Translational Genomics Group, Vall d'Hebron Institute of Oncology (VHIO), Passeig Vall d'Hebron 119-129, Barcelona 08035, Spain
| | - Judit Grueso
- Experimental Therapeutics Group, VHIO, Barcelona 08035, Spain
| | - Marta Guzman
- Experimental Therapeutics Group, VHIO, Barcelona 08035, Spain
| | | | - Michael Kharas
- Molecular Pharmacology and Chemistry Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Jason S Lewis
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. Molecular Pharmacology and Chemistry Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Maura Dickler
- Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Violeta Serra
- Experimental Therapeutics Group, VHIO, Barcelona 08035, Spain
| | - Neal Rosen
- Molecular Pharmacology and Chemistry Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Sarat Chandarlapaty
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. Weill Cornell Medical College, New York, NY 10065, USA.
| | - Maurizio Scaltriti
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA.
| | - José Baselga
- Human Oncology and Pathogenesis Program and Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. Weill Cornell Medical College, New York, NY 10065, USA.
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Amin DN, Ahuja D, Yaswen P, Moasser MM. A TORC2-Akt Feed-Forward Topology Underlies HER3 Resiliency in HER2-Amplified Cancers. Mol Cancer Ther 2015; 14:2805-17. [PMID: 26438156 PMCID: PMC4674361 DOI: 10.1158/1535-7163.mct-15-0403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 09/18/2015] [Indexed: 11/16/2022]
Abstract
The requisite role of HER3 in HER2-amplified cancers is beyond what would be expected as a dimerization partner or effector substrate and it exhibits a substantial degree of resiliency that mitigates the effects of HER2-inhibitor therapies. To better understand the roots of this resiliency, we conducted an in-depth chemical-genetic interrogation of the signaling network downstream of HER3. A unique attribute of these tumors is the deregulation of TORC2. The upstream signals that ordinarily maintain TORC2 signaling are lost in these tumors, and instead TORC2 is driven by Akt. We find that in these cancers HER3 functions as a buffering arm of an Akt-TORC2 feed-forward loop that functions as a self-perpetuating module. This network topology alters the role of HER3 from a conditionally engaged ligand-driven upstream physiologic signaling input to an essential component of a concentric signaling throughput highly competent at preservation of homeostasis. The competence of this signaling topology is evident in its response to perturbation at any of its nodes. Thus, a critical pathophysiologic event in the evolution of HER2-amplified cancers is the loss of the input signals that normally drive TORC2 signaling, repositioning it under Akt dependency, and fundamentally altering the role of HER3. This reprogramming of the downstream network topology is a key aspect in the pathogenesis of HER2-amplified cancers and constitutes a formidable barrier in the targeted therapy of these cancers.
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Affiliation(s)
- Dhara N Amin
- Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California
| | - Deepika Ahuja
- Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California
| | - Paul Yaswen
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - Mark M Moasser
- Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California.
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Saunus JM, Quinn MCJ, Patch AM, Pearson JV, Bailey PJ, Nones K, McCart Reed AE, Miller D, Wilson PJ, Al-Ejeh F, Mariasegaram M, Lau Q, Withers T, Jeffree RL, Reid LE, Da Silva L, Matsika A, Niland CM, Cummings MC, Bruxner TJC, Christ AN, Harliwong I, Idrisoglu S, Manning S, Nourse C, Nourbakhsh E, Wani S, Anderson MJ, Fink JL, Holmes O, Kazakoff S, Leonard C, Newell F, Taylor D, Waddell N, Wood S, Xu Q, Kassahn KS, Narayanan V, Taib NA, Teo SH, Chow YP, kConFab, Jat PS, Brandner S, Flanagan AM, Khanna KK, Chenevix-Trench G, Grimmond SM, Simpson PT, Waddell N, Lakhani SR. Integrated genomic and transcriptomic analysis of human brain metastases identifies alterations of potential clinical significance. J Pathol 2015; 237:363-78. [DOI: 10.1002/path.4583] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/26/2015] [Accepted: 07/01/2015] [Indexed: 12/30/2022]
Affiliation(s)
- Jodi M Saunus
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
| | - Michael CJ Quinn
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Ann-Marie Patch
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - John V Pearson
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Peter J Bailey
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences; University of Glasgow; UK
| | - Katia Nones
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Amy E McCart Reed
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
| | - David Miller
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
- Kinghorn Centre for Clinical Genomics; Garvan Institute of Medical Research; Darlinghurst NSW Australia
| | - Peter J Wilson
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Fares Al-Ejeh
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
| | - Mythily Mariasegaram
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
| | - Queenie Lau
- Pathology Queensland; Gold Coast Hospital; Southport Queensland Australia
| | - Teresa Withers
- Department of Neurosurgery; Gold Coast Hospital; Southport Queensland Australia
| | - Rosalind L Jeffree
- Kenneth G Jamieson Department of Neurosurgery; Royal Brisbane and Women's Hospital; Herston Queensland Australia
| | - Lynne E Reid
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
| | - Leonard Da Silva
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- University of Queensland School of Medicine; Herston Queensland Australia
| | - Admire Matsika
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- Pathology Queensland; Royal Brisbane and Women's Hospital; Herston Queensland Australia
| | - Colleen M Niland
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
| | - Margaret C Cummings
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- University of Queensland School of Medicine; Herston Queensland Australia
- Pathology Queensland; Royal Brisbane and Women's Hospital; Herston Queensland Australia
| | - Timothy JC Bruxner
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Angelika N Christ
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Ivon Harliwong
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Senel Idrisoglu
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Suzanne Manning
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Craig Nourse
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences; University of Glasgow; UK
| | - Ehsan Nourbakhsh
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Shivangi Wani
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Matthew J Anderson
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - J Lynn Fink
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Oliver Holmes
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Stephen Kazakoff
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Conrad Leonard
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Felicity Newell
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Darrin Taylor
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Nick Waddell
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Scott Wood
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Qinying Xu
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Karin S Kassahn
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
- Genetic and Molecular Pathology, SA Pathology; Women's and Children's Hospital; North Adelaide South Australia Australia
- School of Molecular and Biomedical Science; University of Adelaide; South Australia Australia
| | - Vairavan Narayanan
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine; University of Malaya; Kuala Lumpur Malaysia
| | - Nur Aishah Taib
- Breast Unit, Department of Surgery, Faculty of Medicine; University of Malaya; Kuala Lumpur Malaysia
- University Malaya Cancer Research Institute; University of Malaya; Kuala Lumpur Malaysia
| | - Soo-Hwang Teo
- University Malaya Cancer Research Institute; University of Malaya; Kuala Lumpur Malaysia
- Cancer Research Initiatives Foundation; Sime Darby Medical Centre; Selangor Malaysia
| | - Yock Ping Chow
- Cancer Research Initiatives Foundation; Sime Darby Medical Centre; Selangor Malaysia
| | - kConFab
- Peter MacCallum Cancer Centre; University of Melbourne; Victoria Australia
| | - Parmjit S Jat
- Department of Neurodegenerative Disease and MRC Prion Unit; UCL Institute of Neurology; London UK
| | - Sebastian Brandner
- Division of Neuropathology and Department of Neurodegenerative Disease; UCL Institute of Neurology; London UK
| | - Adrienne M Flanagan
- Histopathology; Royal National Orthopaedic Hospital NHS Trust; Stanmore UK
- University College London Cancer Institute; London UK
| | - Kum Kum Khanna
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
| | | | - Sean M Grimmond
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences; University of Glasgow; UK
| | - Peter T Simpson
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- University of Queensland School of Medicine; Herston Queensland Australia
| | - Nicola Waddell
- QIMR Berghofer Medical Research Institute; Herston Queensland Australia
- Queensland Centre for Medical Genomics, IMB; University of Queensland; St Lucia Queensland Australia
| | - Sunil R Lakhani
- University of Queensland; UQ Centre for Clinical Research; Herston Queensland Australia
- University of Queensland School of Medicine; Herston Queensland Australia
- Pathology Queensland; Royal Brisbane and Women's Hospital; Herston Queensland Australia
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Decreased LRIG1 in fulvestrant-treated luminal breast cancer cells permits ErbB3 upregulation and increased growth. Oncogene 2015; 35:1143-52. [PMID: 26148232 PMCID: PMC4703573 DOI: 10.1038/onc.2015.169] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 02/18/2015] [Accepted: 02/22/2015] [Indexed: 12/14/2022]
Abstract
ErbB3, a member of the ErbB family of receptor tyrosine kinases, is a potent activator of phosphatidyl inositol-3 kinase (PI3K) and mTOR signaling, driving tumor cell survival and therapeutic resistance in breast cancers. In luminal breast cancers, ErbB3 upregulation following treatment with the anti-estrogen fulvestrant enhances PI3K/mTOR-mediated cell survival. However, the mechanism by which ErbB3 is upregulated in fulvestrant-treated cells is unknown. We found that ErbB3 protein levels and cell surface presentation were increased following fulvestrant treatment, focusing our attention on proteins that regulate ErbB3 at the cell surface, including Nrdp1, NEDD4, and LRIG1. Among these, only LRIG1 correlated positively with ERα, but inversely with ErbB3 in clinical breast cancer datasets. LRIG1, an estrogen-inducible ErbB down-regulator, was decreased in a panel of fulvestrant-treated luminal breast cancer cells. Ectopic LRIG1 expression from an estrogen-independent promoter uncoupled LRIG1 from estrogen regulation, thus sustaining LRIG1 and maintaining low ErbB3 levels in fulvestrant-treated cells. An LRIG1 mutant lacking the ErbB3 interaction motif was insufficient to down-regulate ErbB3. Importantly, LRIG1 overexpression improved fulvestrant-mediated growth inhibition, while cells expressing the LRIG1 mutant were poorly sensitive to fulvestrant, despite effective ERα down-regulation. Consistent with these results, LRIG1 expression correlated positively with increased disease-free survival in anti-estrogen-treated breast cancer patients. These data suggest that ERα-dependent expression of LRIG1 dampens ErbB3 signaling in luminal breast cancer cells, and by blocking ERα activity with fulvestrant, LRIG1 is decreased thus permitting ErbB3 accumulation, enhanced ErbB3 signaling to cell survival pathways, and blunting therapeutic response to fulvestrant.
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40
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Dahlhoff M, Schäfer M, Muzumdar S, Rose C, Schneider MR. ERBB3 is required for tumor promotion in a mouse model of skin carcinogenesis. Mol Oncol 2015; 9:1825-33. [PMID: 26194695 DOI: 10.1016/j.molonc.2015.06.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 05/19/2015] [Accepted: 06/22/2015] [Indexed: 01/24/2023] Open
Abstract
The epidermal growth factor receptor (EGFR) plays a key role in skin inflammation, wound healing, and carcinogenesis. Less is known about the functions of the structurally related receptor ERBB3 (HER3) in the skin. We assessed the requirement of ERBB3 for skin homeostasis, wound healing, and tumorigenesis by crossing mice carrying a conditional Erbb3 allele with animals expressing cre under the control of the keratin 5 promoter. Erbb3(del) mice, lacking ERBB3 specifically in keratinocytes, showed no obvious abnormalities. The EGFR was upregulated in Erbb3(del) skin, possibly compensating the loss of ERBB3. Nonetheless, healing of full-thickness excisional wounds was negatively affected by ERBB3 deficiency. To analyze the function of ERBB3 during tumorigenesis, we employed the established DMBA/TPA multi-stage chemical carcinogenesis protocol. Erbb3(del) mice remained free of papillomas for a longer time and had significantly reduced tumor burden compared to control littermates. Tumor cell proliferation was considerably reduced in Erbb3(del) mice, and loss of ERBB3 also impaired keratinocyte proliferation after a single application of TPA. In human skin tumor samples, upregulated ERBB3 expression was observed in squamous cell carcinoma, condyloma, and malignant melanoma. Thus, we conclude that ERBB3, while dispensable for the development and the homeostasis of the epidermis and its appendages, is required for proper wound healing and for the progression of skin tumors during multi-stage chemical carcinogenesis in mice. ERBB3 may also be important for human skin cancer progression. The latter effects most probably reflect a key role for ERBB3 in increasing cell proliferation after stimuli as wounding or carcinogenesis.
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Affiliation(s)
- Maik Dahlhoff
- Institute of Molecular Animal Breeding and Biotechnology, LMU Munich, Munich, Germany
| | - Matthias Schäfer
- Department of Biology, Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland
| | - Sukalp Muzumdar
- Department of Biology, Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland
| | - Christian Rose
- Department of Dermatology, University Hospital Schleswig-Holstein, University of Lübeck, Lübeck, Germany
| | - Marlon R Schneider
- Institute of Molecular Animal Breeding and Biotechnology, LMU Munich, Munich, Germany.
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41
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Trono P, Di Modugno F, Circo R, Spada S, Di Benedetto A, Melchionna R, Palermo B, Matteoni S, Soddu S, Mottolese M, De Maria R, Nisticò P. hMENA(11a) contributes to HER3-mediated resistance to PI3K inhibitors in HER2-overexpressing breast cancer cells. Oncogene 2015; 35:887-96. [PMID: 25961924 DOI: 10.1038/onc.2015.143] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 03/12/2015] [Accepted: 03/23/2015] [Indexed: 12/31/2022]
Abstract
Human Mena (hMENA), an actin regulatory protein of the ENA/VASP family, cooperates with ErbB receptor family signaling in breast cancer. It is overexpressed in high-risk preneoplastic lesions and in primary breast tumors where it correlates with HER2 overexpression and an activated status of AKT and MAPK. The concomitant overexpression of hMENA and HER2 in breast cancer patients is indicative of a worse prognosis. hMENA is expressed along with alternatively expressed isoforms, hMENA(11a) and hMENAΔv6 with opposite functions. A novel role for the epithelial-associated hMENA(11a) isoform in sustaining HER3 activation and pro-survival pathways in HER2-overexpressing breast cancer cells has been identified by reverse phase protein array and validated in vivo in a series of breast cancer tissues. As HER3 activation is crucial in mechanisms of cell resistance to PI3K inhibitors, we explored whether hMENA(11a) is involved in these resistance mechanisms. The specific hMENA(11a) depletion switched off the HER3-related pathway activated by PI3K inhibitors and impaired the nuclear accumulation of HER3 transcription factor FOXO3a induced by PI3K inhibitors, whereas PI3K inhibitors activated hMENA(11a) phosphorylation and affected its localization. At the functional level, we found that hMENA(11a) sustains cell proliferation and survival in response to PI3K inhibitor treatment, whereas hMENA(11a) silencing increases molecules involved in cancer cell apoptosis. As shown in three-dimensional cultures, hMENA(11a) contributes to resistance to PI3K inhibition because its depletion drastically reduced cell viability upon treatment with PI3K inhibitor BEZ235. Altogether, these results indicate that hMENA(11a) in HER2-overexpressing breast cancer cells sustains HER3/AKT axis activation and contributes to HER3-mediated resistance mechanisms to PI3K inhibitors. Thus, hMENA(11a) expression can be proposed as a marker of HER3 activation and resistance to PI3K inhibition therapies, to select patients who may benefit from these combined targeted treatments. hMENA(11a) activity could represent a new target for antiproliferative therapies in breast cancer.
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Affiliation(s)
- P Trono
- Laboratory of Immunology, Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy
| | - F Di Modugno
- Laboratory of Immunology, Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy
| | - R Circo
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - S Spada
- Laboratory of Immunology, Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy.,Department of Molecular Medicine, Sapienza, University of Rome, Rome, Italy
| | - A Di Benedetto
- Department of Pathology, Regina Elena National Cancer Institute, Rome, Italy
| | - R Melchionna
- Laboratory of Immunology, Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy
| | - B Palermo
- Laboratory of Immunology, Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy.,Department of Molecular Medicine, Sapienza, University of Rome, Rome, Italy
| | - S Matteoni
- Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy
| | - S Soddu
- Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy
| | - M Mottolese
- Department of Pathology, Regina Elena National Cancer Institute, Rome, Italy
| | - R De Maria
- Scientific Direction, Regina Elena National Cancer Institute, Rome, Italy
| | - P Nisticò
- Laboratory of Immunology, Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy
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Tokunaga E, Hisamatsu Y, Tanaka K, Yamashita N, Saeki H, Oki E, Kitao H, Maehara Y. Molecular mechanisms regulating the hormone sensitivity of breast cancer. Cancer Sci 2014; 105:1377-83. [PMID: 25155268 PMCID: PMC4462367 DOI: 10.1111/cas.12521] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 08/18/2014] [Accepted: 08/20/2014] [Indexed: 02/02/2023] Open
Abstract
Breast cancer is a heterogeneous disease. Approximately 70% of breast cancers are estrogen receptor (ER) positive. Endocrine therapy has dramatically improved the prognosis of ER-positive breast cancer; however, many tumors exhibit de novo or acquired resistance to endocrine therapy. A thorough understanding of the molecular mechanisms regulating hormone sensitivity or resistance is important to improve the efficacy of and overcome the resistance to endocrine therapy. The growth factor receptor signaling pathways, particularly the phosphatidylinositol 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway can mediate resistance to all forms of endocrine therapy. In contrast, FOXA1 transcription factor is a key determinant of ER function and endocrine response. Intriguingly, a link between hormone resistance induced by the PI3K/Akt/mTOR pathway and the function of FOXA1 has been suggested. In this review, we focus on the PI3K/Akt/mTOR pathway and functions of FOXA1 in terms of the molecular mechanisms regulating the hormone sensitivity of breast cancer.
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Affiliation(s)
- Eriko Tokunaga
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Comprehensive Clinical Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Abstract
The discovery of HER2 and development of trastuzumab pioneered the field of targeted therapy in breast cancer. Hoping to emulate the same clinical success, pharmaceutical companies have developed several antibodies against newly identified membrane-bound targets. Unfortunately, none of these agents has yet matched the thousands of lives saved by trastuzumab. In this article we review the most advanced therapeutic antibodies in breast cancer. While acknowledging their unquestionable benefit, we emphasize the need to better understand their biology and mechanisms of action in order to optimize their use in defined patient populations.
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Affiliation(s)
- José Pérez-Garcia
- Breast Cancer Unit, Vall d׳Hebron Institute of Oncology, Vall d׳Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Eva Muñoz-Couselo
- Breast Cancer Unit, Vall d׳Hebron Institute of Oncology, Vall d׳Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Javier Cortés
- Breast Cancer Unit, Vall d׳Hebron Institute of Oncology, Vall d׳Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Maurizio Scaltriti
- Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, NY.
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44
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Tao JJ, Castel P, Radosevic-Robin N, Elkabets M, Auricchio N, Aceto N, Weitsman G, Barber P, Vojnovic B, Ellis H, Morse N, Viola-Villegas NT, Bosch A, Juric D, Hazra S, Singh S, Kim P, Bergamaschi A, Maheswaran S, Ng T, Penault-Llorca F, Lewis JS, Carey LA, Perou CM, Baselga J, Scaltriti M. Antagonism of EGFR and HER3 enhances the response to inhibitors of the PI3K-Akt pathway in triple-negative breast cancer. Sci Signal 2014; 7:ra29. [PMID: 24667376 PMCID: PMC4283215 DOI: 10.1126/scisignal.2005125] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Both abundant epidermal growth factor receptor (EGFR or ErbB1) and high activity of the phosphatidylinositol 3-kinase (PI3K)-Akt pathway are common and therapeutically targeted in triple-negative breast cancer (TNBC). However, activation of another EGFR family member [human epidermal growth factor receptor 3 (HER3) (or ErbB3)] may limit the antitumor effects of these drugs. We found that TNBC cell lines cultured with the EGFR or HER3 ligand EGF or heregulin, respectively, and treated with either an Akt inhibitor (GDC-0068) or a PI3K inhibitor (GDC-0941) had increased abundance and phosphorylation of HER3. The phosphorylation of HER3 and EGFR in response to these treatments was reduced by the addition of a dual EGFR and HER3 inhibitor (MEHD7945A). MEHD7945A also decreased the phosphorylation (and activation) of EGFR and HER3 and the phosphorylation of downstream targets that occurred in response to the combination of EGFR ligands and PI3K-Akt pathway inhibitors. In culture, inhibition of the PI3K-Akt pathway combined with either MEHD7945A or knockdown of HER3 decreased cell proliferation compared with inhibition of the PI3K-Akt pathway alone. Combining either GDC-0068 or GDC-0941 with MEHD7945A inhibited the growth of xenografts derived from TNBC cell lines or from TNBC patient tumors, and this combination treatment was also more effective than combining either GDC-0068 or GDC-0941 with cetuximab, an EGFR-targeted antibody. After therapy with EGFR-targeted antibodies, some patients had residual tumors with increased HER3 abundance and EGFR/HER3 dimerization (an activating interaction). Thus, we propose that concomitant blockade of EGFR, HER3, and the PI3K-Akt pathway in TNBC should be investigated in the clinical setting.
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Affiliation(s)
- Jessica J. Tao
- Massachusetts General Hospital Cancer Center and Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA
| | - Pau Castel
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Nina Radosevic-Robin
- Department of Biopathology, Centre Jean Perrin, 58 rue Montalembert, 63011 Clermont-Ferrand, France
- ERTICA EA4677, University of Auvergne, 63000 Clermont-Ferrand, France
| | - Moshe Elkabets
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Neil Auricchio
- Massachusetts General Hospital Cancer Center and Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA
| | - Nicola Aceto
- Massachusetts General Hospital Cancer Center and Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA
| | - Gregory Weitsman
- Richard Dimbleby Department of Cancer Research, Randall Division of Cell & Molecular Biophysics and Division of Cancer Studies, King's College London, London SE1 1UL, UK
| | - Paul Barber
- Gray Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ, UK
- Institute for Mathematical and Molecular Bio-medicine, King's College London, London SE1 1UL, UK
| | - Borivoj Vojnovic
- Gray Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ, UK
- Randall Division of Cell & Molecular Biophysics, King's College London, London SE1 1UL, UK
| | - Haley Ellis
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Natasha Morse
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Nerissa Therese Viola-Villegas
- Depart-ment of Radiology and Program in Molecular Pharmacology and Chemistry, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ana Bosch
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Dejan Juric
- Massachusetts General Hospital Cancer Center and Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA
| | - Saswati Hazra
- Prometheus Therapeutics & Diagnostics, 9410 Carroll Park Drive, San Diego, CA 92121, USA
| | - Sharat Singh
- Prometheus Therapeutics & Diagnostics, 9410 Carroll Park Drive, San Diego, CA 92121, USA
| | - Phillip Kim
- Prometheus Therapeutics & Diagnostics, 9410 Carroll Park Drive, San Diego, CA 92121, USA
| | - Anna Bergamaschi
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, 524 Burrill Hall, 407 South Goodwin Avenue, Urbana, IL 61801, USA
| | - Shyamala Maheswaran
- Massachusetts General Hospital Cancer Center and Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA
| | - Tony Ng
- Richard Dimbleby Department of Cancer Research, Randall Division of Cell & Molecular Biophysics and Division of Cancer Studies, King's College London, London SE1 1UL, UK
- UCL Cancer Institute, Paul O'Gorman Building, University College London, London WC1E 6DD, UK
| | - Frédérique Penault-Llorca
- Department of Biopathology, Centre Jean Perrin, 58 rue Montalembert, 63011 Clermont-Ferrand, France
- ERTICA EA4677, University of Auvergne, 63000 Clermont-Ferrand, France
| | - Jason S. Lewis
- Depart-ment of Radiology and Program in Molecular Pharmacology and Chemistry, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Lisa A. Carey
- Department of Medicine, University of North Carolina at Chapel Hill, 170 Manning Drive, Chapel Hill, NC 27599, USA
| | - Charles M. Perou
- Department of Genetics, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - José Baselga
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Maurizio Scaltriti
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
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