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Mehrtabar E, Khalaji A, Pandeh M, Farhoudian A, Shafiee N, Shafiee A, Ojaghlou F, Mahdavi P, Soleymani-Goloujeh M. Impact of microRNA variants on PI3K/AKT signaling in triple-negative breast cancer: comprehensive review. Med Oncol 2024; 41:222. [PMID: 39120634 DOI: 10.1007/s12032-024-02469-4] [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: 06/10/2024] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
Breast cancer (BC) is a significant cause of cancer-related mortality, and triple-negative breast cancer (TNBC) is a particularly aggressive subtype associated with high mortality rates, especially among younger females. TNBC poses a considerable clinical challenge due to its aggressive tumor behavior and limited therapeutic options. Aberrations within the PI3K/AKT pathway are prevalent in TNBC and correlate with increased therapeutic intervention resistance and poor outcomes. MicroRNAs (miRs) have emerged as crucial PI3K/AKT pathway regulators influencing various cellular processes involved in TNBC pathogenesis. The levels of miRs, including miR-193, miR-4649-5p, and miR-449a, undergo notable changes in TNBC tumor tissues, emphasizing their significance in cancer biology. This review explored the intricate interplay between miR variants and PI3K/AKT signaling in TNBC. The review focused on the molecular mechanisms underlying miR-mediated dysregulation of this pathway and highlighted specific miRs and their targets. In addition, we explore the clinical implications of miR dysregulation in TNBC, particularly its correlation with TNBC prognosis and therapeutic resistance. Elucidating the roles of miRs in modulating the PI3K/AKT signaling pathway will enhance our understanding of TNBC biology and unveil potential therapeutic targets. This comprehensive review aims to discuss current knowledge and open promising avenues for future research, ultimately facilitating the development of precise and effective treatments for patients with TNBC.
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Affiliation(s)
- Ehsan Mehrtabar
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
| | - Amirreza Khalaji
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mojtaba Pandeh
- School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Aram Farhoudian
- School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Nadia Shafiee
- Children's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Atefe Shafiee
- Board-Certified Cardiologist, Rajaie Cardiovascular Medical and Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Ojaghlou
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parinaz Mahdavi
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | - Mehdi Soleymani-Goloujeh
- Diabetes Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA.
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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2
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Guo Z, Luo J, Mashl RJ, Hoog J, Maiti P, Fettig N, Davies SR, Aft R, Held JM, Govindan R, Ding L, Li S, von Morze C, Wulf GM, Shoghi KI, Ma CX. Evaluation of Copanlisib in Combination with Eribulin in Triple-negative Breast Cancer Patient-derived Xenograft Models. CANCER RESEARCH COMMUNICATIONS 2024; 4:1430-1440. [PMID: 38717161 PMCID: PMC11152037 DOI: 10.1158/2767-9764.crc-24-0047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/22/2024]
Abstract
The PI3K pathway regulates essential cellular functions and promotes chemotherapy resistance. Activation of PI3K pathway signaling is commonly observed in triple-negative breast cancer (TNBC). However previous studies that combined PI3K pathway inhibitors with taxane regimens have yielded inconsistent results. We therefore set out to examine whether the combination of copanlisib, a clinical grade pan-PI3K inhibitor, and eribulin, an antimitotic chemotherapy approved for taxane-resistant metastatic breast cancer, improves the antitumor effect in TNBC. A panel of eight TNBC patient-derived xenograft (PDX) models was tested for tumor growth response to copanlisib and eribulin, alone or in combination. Treatment-induced signaling changes were examined by reverse phase protein array, immunohistochemistry (IHC) and 18F-fluorodeoxyglucose PET (18F-FDG PET). Compared with each drug alone, the combination of eribulin and copanlisib led to enhanced tumor growth inhibition, which was observed in both eribulin-sensitive and -resistant TNBC PDX models, regardless of PI3K pathway alterations or PTEN status. Copanlisib reduced PI3K signaling and enhanced eribulin-induced mitotic arrest. The combination enhanced induction of apoptosis compared with each drug alone. Interestingly, eribulin upregulated PI3K pathway signaling in PDX tumors, as demonstrated by increased tracer uptake by 18F-FDG PET scan and AKT phosphorylation by IHC. These changes were inhibited by the addition of copanlisib. These data support further clinical development for the combination of copanlisib and eribulin and led to a phase I/II trial of copanlisib and eribulin in patients with metastatic TNBC. SIGNIFICANCE In this research, we demonstrated that the pan-PI3K inhibitor copanlisib enhanced the cytotoxicity of eribulin in a panel of TNBC PDX models. The improved tumor growth inhibition was irrespective of PI3K pathway alteration and was corroborated by the enhanced mitotic arrest and apoptotic induction observed in PDX tumors after combination therapy compared with each drug alone. These data provide the preclinical rationale for the clinical testing in TNBC.
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Affiliation(s)
- Zhanfang Guo
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Jingqin Luo
- Division of Public Health Science, Siteman Cancer Center Biostatistics Core, Washington University School of Medicine, St. Louis, Missouri
| | - R. Jay Mashl
- Department of Medicine, McDonnell Genome Institute, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
| | - Jeremy Hoog
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Piyush Maiti
- Mallinckrodt Institute of Radiology, St. Louis, Missouri
| | - Nikki Fettig
- Mallinckrodt Institute of Radiology, St. Louis, Missouri
| | - Sherri R. Davies
- Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Rebecca Aft
- Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Jason M. Held
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Ramaswamy Govindan
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Li Ding
- Department of Medicine, McDonnell Genome Institute, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
| | - Shunqiang Li
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | | | - Gerburg M. Wulf
- Department of Medicine and Cancer Research Institute, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | | | - Cynthia X. Ma
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
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3
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Zhang Z, Zhang R, Li D. Molecular Biology Mechanisms and Emerging Therapeutics of Triple-Negative Breast Cancer. Biologics 2023; 17:113-128. [PMID: 37767463 PMCID: PMC10520847 DOI: 10.2147/btt.s426392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer that is conventionally characterized by the absence of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor-2 (HER2), accounting for approximately 15-20% of all breast cancers. Compared to other molecular phenotypes, TNBC is typically associated with high malignancy and poor prognosis. Cytotoxic agents have been the mainstay of treatment for the past few decades due to the lack of definitive targets and limited therapeutic interventions. However, recent developments have demonstrated that TNBC has peculiar molecular classifications and biomarkers, which provide the possibility of evolving treatment from basic cytotoxic chemotherapy to an expanding domain of targeted therapies. This review presents a framework for understanding the current clinical experience surrounding molecular biology mechanisms in TNBC (Figure 1). Including immunotherapy, polymerase (PARP) and PI3K/AKT pathway inhibitors, antibody-drug conjugates, and androgen receptor (AR) blockade. Additionally, the role of miRNA therapeutics targeting TNBC and potential strategies targeting cancer stem cells (CSCs) are discussed and highlighted. As more and more treatments arise on the horizon, we believe that patients with TNBC will have a new sense of hope.
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Affiliation(s)
- Zhiying Zhang
- Inner Mongolia Medical University, Department of Thyroid Breast Surgery, Affiliated Hospital of Inner Mongolia Medical University, Inner Mongolia, 010050, People’s Republic of China
| | - Rui Zhang
- Inner Mongolia Medical University, Department of Thyroid Breast Surgery, Affiliated Hospital of Inner Mongolia Medical University, Inner Mongolia, 010050, People’s Republic of China
| | - Donghai Li
- Inner Mongolia Medical University, Department of Thyroid Breast Surgery, Affiliated Hospital of Inner Mongolia Medical University, Inner Mongolia, 010050, People’s Republic of China
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Tarin M, Némati F, Decaudin D, Canbezdi C, Marande B, Silva L, Derrien H, Jochemsen AG, Gardrat S, Piperno-Neumann S, Rodrigues M, Mariani P, Cassoux N, Stern MH, Roman-Roman S, Alsafadi S. FAK Inhibitor-Based Combinations with MEK or PKC Inhibitors Trigger Synergistic Antitumor Effects in Uveal Melanoma. Cancers (Basel) 2023; 15:cancers15082280. [PMID: 37190207 DOI: 10.3390/cancers15082280] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/30/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
Uveal Melanoma (UM) is a rare and malignant intraocular tumor with dismal prognosis. Even if radiation or surgery permit an efficient control of the primary tumor, up to 50% of patients subsequently develop metastases, mainly in the liver. The treatment of UM metastases is challenging and the patient survival is very poor. The most recurrent event in UM is the activation of Gαq signaling induced by mutations in GNAQ/11. These mutations activate downstream effectors including protein kinase C (PKC) and mitogen-activated protein kinases (MAPK). Clinical trials with inhibitors of these targets have not demonstrated a survival benefit for patients with UM metastasis. Recently, it has been shown that GNAQ promotes YAP activation through the focal adhesion kinase (FAK). Pharmacological inhibition of MEK and FAK showed remarkable synergistic growth-inhibitory effects in UM both in vitro and in vivo. In this study, we have evaluated the synergy of the FAK inhibitor with a series of inhibitors targeting recognized UM deregulated pathways in a panel of cell lines. The combined inhibition of FAK and MEK or PKC had highly synergistic effects by reducing cell viability and inducing apoptosis. Furthermore, we demonstrated that these combinations exert a remarkable in vivo activity in UM patient-derived xenografts. Our study confirms the previously described synergy of the dual inhibition of FAK and MEK and identifies a novel combination of drugs (FAK and PKC inhibitors) as a promising strategy for therapeutic intervention in metastatic UM.
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Affiliation(s)
- Malcy Tarin
- Translational Research Department, Institut Curie, PSL Research University, 75005 Paris, France
| | - Fariba Némati
- Laboratory of Preclinical Investigation, Institut Curie, PSL Research University, 75005 Paris, France
| | - Didier Decaudin
- Laboratory of Preclinical Investigation, Institut Curie, PSL Research University, 75005 Paris, France
- Department of Medical Oncology, Institut Curie, PSL Research University, 75005 Paris, France
| | - Christine Canbezdi
- Translational Research Department, Institut Curie, PSL Research University, 75005 Paris, France
| | - Benjamin Marande
- Translational Research Department, Institut Curie, PSL Research University, 75005 Paris, France
| | - Lisseth Silva
- Translational Research Department, Institut Curie, PSL Research University, 75005 Paris, France
| | - Héloïse Derrien
- Laboratory of Preclinical Investigation, Institut Curie, PSL Research University, 75005 Paris, France
| | - Aart G Jochemsen
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
| | - Sophie Gardrat
- Department of Biopathology, Institut Curie, PSL Research University, 75005 Paris, France
| | - Sophie Piperno-Neumann
- Department of Medical Oncology, Institut Curie, PSL Research University, 75005 Paris, France
| | - Manuel Rodrigues
- Department of Medical Oncology, Institut Curie, PSL Research University, 75005 Paris, France
- INSERM U830, DNA Repair and Uveal Melanoma, Institut Curie, PSL Research University, 75005 Paris, France
| | - Pascale Mariani
- Department of Medical Oncology, Institut Curie, PSL Research University, 75005 Paris, France
| | - Nathalie Cassoux
- Department of Ocular Oncology, Institut Curie, Université Paris Cité, 94010 Paris, France
| | - Marc-Henri Stern
- INSERM U830, DNA Repair and Uveal Melanoma, Institut Curie, PSL Research University, 75005 Paris, France
| | - Sergio Roman-Roman
- Translational Research Department, Institut Curie, PSL Research University, 75005 Paris, France
| | - Samar Alsafadi
- Translational Research Department, Institut Curie, PSL Research University, 75005 Paris, France
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5
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Identification of a human estrogen receptor α tetrapeptidic fragment with dual antiproliferative and anti-nociceptive action. Sci Rep 2023; 13:1326. [PMID: 36693877 PMCID: PMC9873809 DOI: 10.1038/s41598-023-28062-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 01/12/2023] [Indexed: 01/25/2023] Open
Abstract
The synthetic peptide ERα17p (sequence: PLMIKRSKKNSLALSLT), which corresponds to the 295-311 region of the human estrogen receptor α (ERα), induces apoptosis in breast cancer cells. In mice and at low doses, it promotes not only the decrease of the size of xenografted triple-negative human breast tumors, but also anti-inflammatory and anti-nociceptive effects. Recently, we have shown that these effects were due to its interaction with the seven-transmembrane G protein-coupled estrogen receptor GPER. Following modeling studies, the C-terminus of this peptide (sequence: NSLALSLT) remains compacted at the entrance of the GPER ligand-binding pocket, whereas its N-terminus (sequence: PLMI) engulfs in the depth of the same pocket. Thus, we have hypothesized that the PLMI motif could support the pharmacological actions of ERα17p. Here, we show that the PLMI peptide is, indeed, responsible for the GPER-dependent antiproliferative and anti-nociceptive effects of ERα17p. By using different biophysical approaches, we demonstrate that the NSLALSLT part of ERα17p is responsible for aggregation. Overall, the tetrapeptide PLMI, which supports the action of the parent peptide ERα17p, should be considered as a hit for the synthesis of new GPER modulators with dual antiproliferative and anti-nociceptive actions. This study highlights also the interest to modulate GPER for the control of pain.
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Vuorinen SI, Okolicsanyi RK, Gyimesi M, Meyjes-Brown J, Saini D, Pham SH, Griffiths LR, Haupt LM. SDC4-rs1981429 and ATM-rs228590 may provide early biomarkers of breast cancer risk. J Cancer Res Clin Oncol 2022:10.1007/s00432-022-04236-2. [PMID: 36152082 DOI: 10.1007/s00432-022-04236-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 07/23/2022] [Indexed: 01/20/2023]
Abstract
In Australia, 13% of women are diagnosed with breast cancer (BC) in their lifetime with approximately 20,000 women diagnosed with the disease in 2021. BC is characterised by complex histological and genomic influences with recent advances in cancer biology improving early diagnosis and personalised treatment interventions. The Phosphatidyl-inositol-3-kinase/Protein kinase B (PI3K/AKT) pathway is essential in apoptosis resistance, cell survival, activation of cellular responses to DNA damage and DNA repair. Heparan sulfate proteoglycans (HSPGs) are ubiquitous molecules found on the cell surface and in the extracellular matrix with essential functions in regulating cell survival, growth, adhesion and as mediators of cell differentiation and migration. HSPGs, particularly the syndecans (SDCs), have been linked to cancers, making them an exciting target for anticancer treatments. In the PI3K/AKT pathway, syndecan-4 (SDC4) has been shown to downregulate AKT Serine/Threonine Kinase (AKT1) gene expression, while the ATM Serine/Threonine Kinase (ATM) gene has been found to inhibit this pathway upstream of AKT. We investigated single-nucleotide polymorphisms (SNPs) in HSPG and related genes SDC4, AKT1 and ATM and their influence on the prevalence of BC. SNPs were genotyped in the Australian Caucasian Genomics Research Centre Breast Cancer (GRC-BC) population and in the Griffith University-Cancer Council Queensland Breast Cancer Biobank (GU-CCQ BB) population. We identified that SDC4-rs1981429 and ATM-rs228590 may influence the development and progression of BC, having the potential to become biomarkers in early BC diagnosis and personalised treatment.
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Affiliation(s)
- Sofia I Vuorinen
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Rachel K Okolicsanyi
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Martina Gyimesi
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Jacob Meyjes-Brown
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Deepa Saini
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Son H Pham
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Lyn R Griffiths
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Larisa M Haupt
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), 60 Musk Ave, Kelvin Grove, QLD, 4059, Australia.
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7
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Suresh S, Huard S, Brisson A, Némati F, Dakroub R, Poulard C, Ye M, Martel E, Reyes C, Silvestre DC, Meseure D, Nicolas A, Gentien D, Fayyad-Kazan H, Le Romancer M, Decaudin D, Roman-Roman S, Dubois T. PRMT1 Regulates EGFR and Wnt Signaling Pathways and Is a Promising Target for Combinatorial Treatment of Breast Cancer. Cancers (Basel) 2022; 14:cancers14020306. [PMID: 35053470 PMCID: PMC8774276 DOI: 10.3390/cancers14020306] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Patients with triple-negative breast cancer (TNBC) respond well to chemotherapy initially but are prone to relapse. Searching for new therapeutic targets, we found that PRMT1 is highly expressed in TNBC tumor samples and is essential for breast cancer cell survival. Furthermore, this study proposes that targeting PRMT1 in combination with chemotherapies could improve the survival outcome of TNBC patients. Abstract Identifying new therapeutic strategies for triple-negative breast cancer (TNBC) patients is a priority as these patients are highly prone to relapse after chemotherapy. Here, we found that protein arginine methyltransferase 1 (PRMT1) is highly expressed in all breast cancer subtypes. PRMT1 depletion decreases cell survival by inducing DNA damage and apoptosis in various breast cancer cell lines. Transcriptomic analysis and chromatin immunoprecipitation revealed that PRMT1 regulates the epidermal growth factor receptor (EGFR) and the Wnt signaling pathways, reported to be activated in TNBC. PRMT1 enzymatic activity is also required to stimulate the canonical Wnt pathway. Type I PRMT inhibitors decrease breast cancer cell proliferation and show anti-tumor activity in a TNBC xenograft model. These inhibitors display synergistic interactions with some chemotherapies used to treat TNBC patients as well as erlotinib, an EGFR inhibitor. Therefore, targeting PRMT1 in combination with these chemotherapies may improve existing treatments for TNBC patients.
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Affiliation(s)
- Samyuktha Suresh
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (S.S.); (S.H.); (A.B.); (R.D.); (M.Y.); (D.C.S.)
| | - Solène Huard
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (S.S.); (S.H.); (A.B.); (R.D.); (M.Y.); (D.C.S.)
| | - Amélie Brisson
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (S.S.); (S.H.); (A.B.); (R.D.); (M.Y.); (D.C.S.)
| | - Fariba Némati
- Pre-Clinical Investigation Laboratory, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (F.N.); (D.D.)
| | - Rayan Dakroub
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (S.S.); (S.H.); (A.B.); (R.D.); (M.Y.); (D.C.S.)
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Hadath, Beirut 1003, Lebanon;
| | - Coralie Poulard
- Cancer Research Center of Lyon, CNRS UMR5286, Inserm U1052, University of Lyon, 69000 Lyon, France; (C.P.); (M.L.R.)
| | - Mengliang Ye
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (S.S.); (S.H.); (A.B.); (R.D.); (M.Y.); (D.C.S.)
| | - Elise Martel
- Platform of Experimental Pathology, Department of Diagnostic and Theranostic Medicine, Institut Curie-Hospital, 75005 Paris, France; (E.M.); (D.M.); (A.N.)
| | - Cécile Reyes
- Genomics Core Facility, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (C.R.); (D.G.)
| | - David C. Silvestre
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (S.S.); (S.H.); (A.B.); (R.D.); (M.Y.); (D.C.S.)
| | - Didier Meseure
- Platform of Experimental Pathology, Department of Diagnostic and Theranostic Medicine, Institut Curie-Hospital, 75005 Paris, France; (E.M.); (D.M.); (A.N.)
| | - André Nicolas
- Platform of Experimental Pathology, Department of Diagnostic and Theranostic Medicine, Institut Curie-Hospital, 75005 Paris, France; (E.M.); (D.M.); (A.N.)
| | - David Gentien
- Genomics Core Facility, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (C.R.); (D.G.)
| | - Hussein Fayyad-Kazan
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Hadath, Beirut 1003, Lebanon;
| | - Muriel Le Romancer
- Cancer Research Center of Lyon, CNRS UMR5286, Inserm U1052, University of Lyon, 69000 Lyon, France; (C.P.); (M.L.R.)
| | - Didier Decaudin
- Pre-Clinical Investigation Laboratory, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (F.N.); (D.D.)
| | - Sergio Roman-Roman
- Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France;
| | - Thierry Dubois
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (S.S.); (S.H.); (A.B.); (R.D.); (M.Y.); (D.C.S.)
- Correspondence: ; Tel.: +33-1-56246250
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8
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Tian T, Zhao Y, Zheng J, Jin S, Liu Z, Wang T. Circular RNA: A potential diagnostic, prognostic, and therapeutic biomarker for human triple-negative breast cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 26:63-80. [PMID: 34513294 PMCID: PMC8411013 DOI: 10.1016/j.omtn.2021.06.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Triple-negative breast cancer (TNBC), which is the most malignant subtype of breast cancer (BC), accounts for 10%–20% of all BC cases. TNBC, which occurs more frequently in young women, is characterized by high rates of cell proliferation and metastasis and poor prognosis. Chemotherapy is the primary systemic therapeutic strategy for TNBC. However, chemotherapy is largely unsuccessful, and effective targeted therapies for TNBC have not been established. Therefore, it is a matter of great urgency to identify precise molecular targets for the promising prognosis of patients with TNBC. Circular RNAs (circRNAs), which are a type of non-coding RNAs (ncRNAs), are abundantly expressed in the eukaryotic cells and exhibit diverse cellular functions. The roles of circRNAs are to sponge microRNA or RNA-binding proteins, regulate gene expression, and serve as templates for translation. Here, we review the current findings on the potential of circRNAs as a diagnostic, prognostic, and therapeutic biomarker for TNBC. However, further studies are essential to elucidate the functions of circRNAs in TNBC. This review also discusses the current limitations and future directions of TNBC-associated circRNAs, which can facilitate the translation of experimental research into clinical application.
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Affiliation(s)
- Tian Tian
- Department of Radiation Oncology, The Second Affiliated Hospital of Jilin University, Changchun 130041, China
| | - Yangzhi Zhao
- Department of Hematology, The First Hospital of Jilin University, Changchun 130021, China
| | - Jingying Zheng
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Jilin University, Changchun 130041, China
| | - Shunzi Jin
- NHC Key Laboratory of Radiobiology, Jilin University, Changchun 130021, China
| | - Zhongshan Liu
- Department of Radiation Oncology, The Second Affiliated Hospital of Jilin University, Changchun 130041, China
| | - Tiejun Wang
- Department of Radiation Oncology, The Second Affiliated Hospital of Jilin University, Changchun 130041, China
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9
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Molecular targets and therapeutics in chemoresistance of triple-negative breast cancer. Med Oncol 2021; 39:14. [PMID: 34812991 DOI: 10.1007/s12032-021-01610-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/03/2021] [Indexed: 02/06/2023]
Abstract
Triple-negative breast cancer (TNBC) is a specific subtype of breast cancer (BC), which shows immunohistochemically negative expression of hormone receptor i.e., Estrogen receptor and Progesterone receptor along with the absence of Human Epidermal Growth Factor Receptor-2 (HER2/neu). In Indian scenario the prevalence of BC is 26.3%, whereas, in West Bengal the cases are of 18.4%. But the rate of TNBC has increased up to 31% and shows 27% of total BC. Conventional chemotherapy is effective only in the initial stages but with progression of the disease the effectivity gets reduced and shown almost no effect in later or advanced stages of TNBC. Thus, TNBC patients frequently develop resistance and metastasis, due to its peculiar triple-negative nature most of the hormonal therapies also fails. Development of chemoresistance may involve various factors, such as, TNBC heterogeneity, cancer stem cells (CSCs), signaling pathway deregulation, DNA repair mechanism, hypoxia, and other molecular factors. To overcome the challenges to treat TNBC various targets and molecules have been exploited including CSCs modulator, drug efflux transporters, hypoxic factors, apoptotic proteins, and regulatory signaling pathways. Moreover, to improve the targets and efficacy of treatments researchers are emphasizing on targeted therapy for TNBC. In this review, an effort has been made to focus on phenotypic and molecular variations in TNBC along with the role of conventional as well as newly identified pathways and strategies to overcome challenge of chemoresistance.
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Filippova EA, Fridman MV, Burdennyy AM, Loginov VI, Pronina IV, Lukina SS, Dmitriev AA, Braga EA. Long Noncoding RNA GAS5 in Breast Cancer: Epigenetic Mechanisms and Biological Functions. Int J Mol Sci 2021; 22:ijms22136810. [PMID: 34202777 PMCID: PMC8267719 DOI: 10.3390/ijms22136810] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/15/2021] [Accepted: 06/18/2021] [Indexed: 12/12/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) have been identified as contributors to the development and progression of cancer through various functions and mechanisms. LncRNA GAS5 is downregulated in multiple cancers and acts as a tumor suppressor in breast cancer. GAS5 interacts with various proteins (e.g., E2F1, EZH2, and YAP), DNA (e.g., the insulin receptor promoter), and various microRNAs (miRNAs). In breast cancer, GAS5 binds with miR-21, miR-222, miR-221-3p, miR-196a-5p, and miR-378a-5p that indicates the presence of several elements for miRNA binding (MREs) in GAS5. Mediated by the listed miRNAs, GAS5 is involved in the upregulation of a number of mRNAs of suppressor proteins such as PTEN, PDCD4, DKK2, FOXO1, and SUFU. Furthermore, the aberrant promoter methylation is involved in the regulation of GAS5 gene expression in triple-negative breast cancer and some other carcinomas. GAS5 can stimulate apoptosis in breast cancer via diverse pathways, including cell death receptors and mitochondrial signaling pathways. GAS5 is also a key player in the regulation of some crucial signal pathways in breast cancer, such as PI3K/AKT/mTOR, Wnt/β-catenin, and NF-κB signaling. Through epigenetic and other mechanisms, GAS5 can increase sensitivity to multiple drugs and improve prognosis. GAS5 is thus a promising target in the treatment of breast cancer patients.
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Affiliation(s)
- Elena A. Filippova
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.A.F.); (A.M.B.); (V.I.L.); (I.V.P.); (S.S.L.)
| | - Marina V. Fridman
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Alexey M. Burdennyy
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.A.F.); (A.M.B.); (V.I.L.); (I.V.P.); (S.S.L.)
| | - Vitaly I. Loginov
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.A.F.); (A.M.B.); (V.I.L.); (I.V.P.); (S.S.L.)
| | - Irina V. Pronina
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.A.F.); (A.M.B.); (V.I.L.); (I.V.P.); (S.S.L.)
| | - Svetlana S. Lukina
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.A.F.); (A.M.B.); (V.I.L.); (I.V.P.); (S.S.L.)
| | - Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Eleonora A. Braga
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.A.F.); (A.M.B.); (V.I.L.); (I.V.P.); (S.S.L.)
- Correspondence:
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Molani Gol R, Kheirouri S. The Effects of Quercetin on the Apoptosis of Human Breast Cancer Cell Lines MCF-7 and MDA-MB-231: A Systematic Review. Nutr Cancer 2021; 74:405-422. [PMID: 33682528 DOI: 10.1080/01635581.2021.1897631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This systematic review was performed with a focus on the effects of quercetin (QT) on the human breast cancer cell lines MCF-7 and MDA-MB-231. PubMed, Scopus, Science Direct, and Google Scholar databases were searched up to May 2020 using relevant keywords. All articles written in English evaluating the effects of QT on the human breast cancer cell lines MCF-7 and/or MDA-MB-231 were eligible for the review. Totally, 31 articles were included in this review. Out of them, 23 studies investigated the effects of QT on MCF-7 cells and indicated that QT induces apoptosis in the cells. Of 15 studies that examined the effects of QT on MDA-MB-231 cells, 14 reports showed successful apoptosis. It is concluded that QT might be beneficial in the eliminating of breast cancer cells. However, further clinical trials are warranted to further verify these outcomes.
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Affiliation(s)
- Roghayeh Molani Gol
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sorayya Kheirouri
- Department of Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Proteomic Resistance Biomarkers for PI3K Inhibitor in Triple Negative Breast Cancer Patient-Derived Xenograft Models. Cancers (Basel) 2020; 12:cancers12123857. [PMID: 33371187 PMCID: PMC7765949 DOI: 10.3390/cancers12123857] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022] Open
Abstract
Simple Summary The objective of this study is to identify potential proteomic biomarkers in triple negative breast cancer (TNBC) that associate with response to PI3K inhibitors which are in clinical trials. We tested a panel of TNBC patient-derived xenograft (PDX) models for their tumor growth response to a pan-PI3K inhibitor, BKM120. Proteomic analyses by reverse phase protein array (RPPA) of 182 markers were performed on baseline and post short-term treatment PDX samples, to correlate with tumor growth response. We identified several baseline and treatment induced proteomic biomarkers in association with resistance. These results provide important insights for the development of PI3K inhibitors in TNBC. Abstract PI3K pathway activation is frequently observed in triple negative breast cancer (TNBC). However, single agent PI3K inhibitors have shown limited anti-tumor activity. To investigate biomarkers of response and resistance mechanisms, we tested 17 TNBC patient-derived xenograft (PDX) models representing diverse genomic backgrounds and varying degrees of PI3K pathway signaling activities for their tumor growth response to the pan-PI3K inhibitor, BKM120. Baseline and post-treatment PDX tumors were subjected to reverse phase protein array (RPPA) to identify protein markers associated with tumor growth response. While BKM120 consistently reduced PI3K pathway activity, as demonstrated by reduced levels of phosphorylated AKT, percentage tumor growth inhibition (%TGI) ranged from 35% in the least sensitive to 84% in the most sensitive model. Several biomarkers showed significant association with resistance, including elevated baseline levels of growth factor receptors (EGFR, pHER3 Y1197), PI3Kp85 regulatory subunit, anti-apoptotic protein BclXL, EMT (Vimentin, MMP9, IntegrinaV), NFKB pathway (IkappaB, RANKL), and intracellular signaling molecules including Caveolin, CBP, and KLF4, as well as treatment-induced increases in the levels of phosphorylated forms of Aurora kinases. Interestingly, increased AKT phosphorylation or PTEN loss at baseline were not significantly correlated to %TGI. These results provide important insights into biomarker development for PI3K inhibitors in TNBC.
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Garrido-Castro AC, Saura C, Barroso-Sousa R, Guo H, Ciruelos E, Bermejo B, Gavilá J, Serra V, Prat A, Paré L, Céliz P, Villagrasa P, Li Y, Savoie J, Xu Z, Arteaga CL, Krop IE, Solit DB, Mills GB, Cantley LC, Winer EP, Lin NU, Rodon J. Phase 2 study of buparlisib (BKM120), a pan-class I PI3K inhibitor, in patients with metastatic triple-negative breast cancer. Breast Cancer Res 2020; 22:120. [PMID: 33138866 PMCID: PMC7607628 DOI: 10.1186/s13058-020-01354-y] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 10/11/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Treatment options for triple-negative breast cancer remain limited. Activation of the PI3K pathway via loss of PTEN and/or INPP4B is common. Buparlisib is an orally bioavailable, pan-class I PI3K inhibitor. We evaluated the safety and efficacy of buparlisib in patients with metastatic triple-negative breast cancer. METHODS This was a single-arm phase 2 study enrolling patients with triple-negative metastatic breast cancer. Patients were treated with buparlisib at a starting dose of 100 mg daily. The primary endpoint was clinical benefit, defined as confirmed complete response (CR), partial response (PR), or stable disease (SD) for ≥ 4 months, per RECIST 1.1. Secondary endpoints included progression-free survival (PFS), overall survival (OS), and toxicity. A subset of patients underwent pre- and on-treatment tumor tissue biopsies for correlative studies. RESULTS Fifty patients were enrolled. Median number of cycles was 2 (range 1-10). The clinical benefit rate was 12% (6 patients, all SD ≥ 4 months). Median PFS was 1.8 months (95% confidence interval [CI] 1.6-2.3). Median OS was 11.2 months (95% CI 6.2-25). The most frequent adverse events were fatigue (58% all grades, 8% grade 3), nausea (34% all grades, none grade 3), hyperglycemia (34% all grades, 4% grade 3), and anorexia (30% all grades, 2% grade 3). Eighteen percent of patients experienced depression (12% grade 1, 6% grade 2) and anxiety (10% grade 1, 8% grade 2). Alterations in PIK3CA/AKT1/PTEN were present in 6/27 patients with available targeted DNA sequencing (MSK-IMPACT), 3 of whom achieved SD as best overall response though none with clinical benefit ≥ 4 months. Of five patients with paired baseline and on-treatment biopsies, reverse phase protein arrays (RPPA) analysis demonstrated reduction of S6 phosphorylation in 2 of 3 patients who achieved SD, and in none of the patients with progressive disease. CONCLUSIONS Buparlisib was associated with prolonged SD in a very small subset of patients with triple-negative breast cancer; however, no confirmed objective responses were observed. Downmodulation of key nodes in the PI3K pathway was observed in patients who achieved SD. PI3K pathway inhibition alone may be insufficient as a therapeutic strategy for triple-negative breast cancer. TRIAL REGISTRATION NCT01790932 . Registered on 13 February 2013; NCT01629615 . Registered on 27 June 2012.
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Affiliation(s)
- Ana C Garrido-Castro
- Department of Medical Oncology, Susan F. Smith Center for Women's Cancers, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - Cristina Saura
- Department of Medical Oncology, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
- Vall d'Hebron Institute of Oncology, VHIO, Barcelona, Spain
- SOLTI Breast Cancer Research Group, Barcelona, Spain
| | - Romualdo Barroso-Sousa
- Department of Medical Oncology, Susan F. Smith Center for Women's Cancers, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA, 02215, USA
- Present Address: Hospital Sírio-Libanês, Brasilia, Brazil
| | - Hao Guo
- Division of Biostatistics, Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA, USA
| | | | - Begoña Bermejo
- Clinic University Hospital, INCLIVA Biomedical Research Institute, CIBERONC-ISCIII, Valencia, Spain
| | - Joaquin Gavilá
- Fundación Instituto Valenciano De Oncología, Valencia, Spain
| | - Violeta Serra
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Aleix Prat
- Department of Medical Oncology, Translational Genomics and Targeted Therapeutics in Solid Tumors, IDIBAPS, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Laia Paré
- SOLTI Breast Cancer Research Group, Barcelona, Spain
| | - Pamela Céliz
- SOLTI Breast Cancer Research Group, Barcelona, Spain
| | | | - Yisheng Li
- Department of Biostatistics, Division of Basic Sciences, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jennifer Savoie
- Department of Medical Oncology, Susan F. Smith Center for Women's Cancers, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - Zhan Xu
- School of Communication, Northern Arizona University, Flagstaff, AZ, USA
| | - Carlos L Arteaga
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
| | - Ian E Krop
- Department of Medical Oncology, Susan F. Smith Center for Women's Cancers, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - David B Solit
- Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gordon B Mills
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
- Present Address: Division of Basic Science Research, Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lewis C Cantley
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medical College, New York, NY, USA
| | - Eric P Winer
- Department of Medical Oncology, Susan F. Smith Center for Women's Cancers, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - Nancy U Lin
- Department of Medical Oncology, Susan F. Smith Center for Women's Cancers, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA, 02215, USA.
| | - Jordi Rodon
- Department of Medical Oncology, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
- SOLTI Breast Cancer Research Group, Barcelona, Spain
- Present Address: Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Revisiting the Concept of Stress in the Prognosis of Solid Tumors: A Role for Stress Granules Proteins? Cancers (Basel) 2020; 12:cancers12092470. [PMID: 32882814 PMCID: PMC7564653 DOI: 10.3390/cancers12092470] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Stress Granules (SGs) were discovered in 1999 and while the first decade of research has focused on some fundamental questions, the field is now investigating their role in human pathogenesis. Since then, evidences of a link between SGs and cancerology are accumulating in vitro and in vivo. In this work we summarized the role of SGs proteins in cancer development and their prognostic values. We find that level of expression of protein involved in SGs formation (and not mRNA level) could serve a prognostic marker in cancer. With this review we strongly suggest that SGs (proteins) could be targets of choice to block cancer development and counteract resistance to improve patients care. Abstract Cancer treatments are constantly evolving with new approaches to improve patient outcomes. Despite progresses, too many patients remain refractory to treatment due to either the development of resistance to therapeutic drugs and/or metastasis occurrence. Growing evidence suggests that these two barriers are due to transient survival mechanisms that are similar to those observed during stress response. We review the literature and current available open databases to study the potential role of stress response and, most particularly, the involvement of Stress Granules (proteins) in cancer. We propose that Stress Granule proteins may have prognostic value for patients.
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15
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Gasparyan M, Lo MC, Jiang H, Lin CC, Sun D. Combined p53- and PTEN-deficiency activates expression of mesenchyme homeobox 1 (MEOX1) required for growth of triple-negative breast cancer. J Biol Chem 2020; 295:12188-12202. [PMID: 32467227 PMCID: PMC7443492 DOI: 10.1074/jbc.ra119.010710] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 05/02/2020] [Indexed: 12/31/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive cancer subtype for which effective therapies are unavailable. TNBC has a high frequency of tumor protein p53 (Tp53/p53)- and phosphatase and tensin homolog (PTEN) deficiencies, and combined p53- and PTEN-deficiency is associated with poor prognosis and poor response to anticancer therapies. In this study, we discovered that combined p53- and PTEN-deficiency in TNBC activates expression of the transcription factor mesenchyme homeobox 1 (MEOX1). We found that MEOX1 is expressed only in TNBC cells with frequent deficiencies in p53 and PTEN, and that its expression is undetectable in luminal A, luminal B, and HER2+ subtypes, as well as in normal breast cells with wild-type (WT) p53 and PTEN. Notably, siRNA knockdown of both p53 and PTEN activated MEOX1 expression in breast cancer cells, whereas individual knockdowns of either p53 or PTEN had only minimal effects on MEOX1 expression. MEOX1 knockdown abolished cell proliferation of p53- and PTEN-deficient TNBC in vitro and inhibited tumor growth in vivo, but had no effect on the proliferation of luminal and HER2+ cancer cells and normal breast cells. RNA-Seq and immunoblotting analyses showed that MEOX1 knockdown decreased expression of tyrosine kinase 2 (TYK2), signal transducer and activator of transcription 5B (STAT5B), and STAT6 in p53- and PTEN-deficient TNBC cells. These results reveal the effects of combined p53- and PTEN-deficiency on MEOX1 expression and TNBC cell proliferation, suggesting that MEOX1 may serve as a potential therapeutic target for managing p53- and PTEN-deficient TNBC.
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Affiliation(s)
- Mari Gasparyan
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Miao-Chia Lo
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Hui Jiang
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Chang-Ching Lin
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Duxin Sun
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan, USA; Chemical Biology Program, University of Michigan, Ann Arbor, Michigan, USA.
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García IA, Garro C, Fernandez E, Soria G. Therapeutic opportunities for PLK1 inhibitors: Spotlight on BRCA1-deficiency and triple negative breast cancers. Mutat Res 2020; 821:111693. [PMID: 32172132 DOI: 10.1016/j.mrfmmm.2020.111693] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023]
Abstract
Polo-Like Kinases (PLKs) are central players of mitotic progression in Eukaryotes. Given the intimate relationship between cell cycle progression and cancer development, PLKs in general and PLK1 in particular have been thoroughly studied as biomarkers and potential therapeutic targets in oncology. The oncogenic properties of PLK1 overexpression across different types of human cancers are attributed to its roles in promoting mitotic entry, centrosome maturation, spindle assembly and cytokinesis. While several academic labs and pharmaceutical companies were able to develop potent and selective inhibitors of PLK1 (PLK1i) for preclinical research, such compounds have reached only limited success in clinical trials despite their great pharmacokinetics. Even though this could be attributed to multiple causes, the housekeeping roles of PLK1 in both normal and cancer cells are most likely the main reason for clinical trials failure and withdraw due to toxicities issues. Therefore, great efforts are being invested to position PLK1i in the treatment of specific types of cancers with revised dosages schemes. In this mini review we focus on two potential niches for PLK1i that are supported by recent evidence: triple negative breast cancers (TNBCs) and BRCA1-deficient cancers. On the one hand, we recollect several lines of strong evidence indicating that TNBCs are among the cancers with highest PLK1 expression and sensitivity to PLK1i. These findings are encouraging because of the limited therapeutics options available for TNBC patients, which rely mainly on classic chemotherapy. On the other hand, we discuss recent evidence that unveils synthetic lethality induction by PLK1 inhibition in BRCA1-deficient cancers cells. This previously unforeseen therapeutic link between PLK1 and BRCA1 is promising because it defines novel therapeutic opportunities for PLK1i not only for breast cancer (i.e. TNBCs with BRCA1 deficiencies), but also for other types of cancers with BRCA1-deficiencies, such as pancreatic and prostate cancers.
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Affiliation(s)
- Iris Alejandra García
- Centro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas, CIDIE-CONICET. Universidad Católica de Córdoba, Córdoba, Argentina; Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Cintia Garro
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CIBICI-CONICET, Córdoba, Argentina; Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Elmer Fernandez
- Centro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas, CIDIE-CONICET. Universidad Católica de Córdoba, Córdoba, Argentina; Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Gastón Soria
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CIBICI-CONICET, Córdoba, Argentina; Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
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Shen J, Li L, Howlett NG, Cohen PS, Sun G. Application of a Biphasic Mathematical Model of Cancer Cell Drug Response for Formulating Potent and Synergistic Targeted Drug Combinations to Triple Negative Breast Cancer Cells. Cancers (Basel) 2020; 12:cancers12051087. [PMID: 32349331 PMCID: PMC7281712 DOI: 10.3390/cancers12051087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/20/2020] [Accepted: 04/24/2020] [Indexed: 01/22/2023] Open
Abstract
Triple negative breast cancer is a collection of heterogeneous breast cancers that are immunohistochemically negative for estrogen receptor, progesterone receptor, and ErbB2 (due to deletion or lack of amplification). No dominant proliferative driver has been identified for this type of cancer, and effective targeted therapy is lacking. In this study, we hypothesized that triple negative breast cancer cells are multi-driver cancer cells, and evaluated a biphasic mathematical model for identifying potent and synergistic drug combinations for multi-driver cancer cells. The responses of two triple negative breast cancer cell lines, MDA-MB-231 and MDA-MB-468, to a panel of targeted therapy drugs were determined over a broad range of concentrations. The analyses of the drug responses by the biphasic mathematical model revealed that both cell lines were indeed dependent on multiple drivers, and inhibitors of individual drivers caused a biphasic response: a target-specific partial inhibition at low nM concentrations, and an off-target toxicity at μM concentrations. We further demonstrated that combinations of drugs, targeting each driver, cause potent, synergistic, and cell-specific cell killing. Immunoblotting analysis of the effects of the individual drugs and drug combinations on the signaling pathways supports the above conclusion. These results support a multi-driver proliferation hypothesis for these triple negative breast cancer cells, and demonstrate the applicability of the biphasic mathematical model for identifying effective and synergistic targeted drug combinations for triple negative breast cancer cells.
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Affiliation(s)
- Jinyan Shen
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan 030001, China
| | - Li Li
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA
- Department of Cell Biology and Medical Genetics, Shanxi Medical University, Taiyuan 030001, China
| | - Niall G. Howlett
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA
| | - Paul S. Cohen
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA
| | - Gongqin Sun
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA
- Correspondence: ; Tel.: +1-401-874-5937
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Bertucci F, Finetti P, Goncalves A, Birnbaum D. The therapeutic response of ER+/HER2- breast cancers differs according to the molecular Basal or Luminal subtype. NPJ Breast Cancer 2020; 6:8. [PMID: 32195331 PMCID: PMC7060267 DOI: 10.1038/s41523-020-0151-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 02/14/2020] [Indexed: 12/11/2022] Open
Abstract
The genomics-based molecular classifications aim at identifying more homogeneous classes than immunohistochemistry, associated with a more uniform clinical outcome. We conducted an in silico analysis on a meta-dataset including gene expression data from 5342 clinically defined ER+/HER2- breast cancers (BC) and DNA copy number/mutational and proteomic data. We show that the Basal (16%) versus Luminal (74%) subtypes as defined using the 80-gene signature differ in terms of response/vulnerability to systemic therapies of BC. The Basal subtype is associated with better chemosensitivity, lesser benefit from adjuvant hormone therapy, and likely better sensitivity to PARP inhibitors, platinum salts and immune therapy, and other targeted therapies under development such as FGFR inhibitors. The Luminal subtype displays potential better sensitivity to CDK4/6 inhibitors and vulnerability to targeted therapies such as PIK3CA, AR and Bcl-2 inhibitors. Expression profiles are very different, showing an intermediate position of the ER+/HER2- Basal subtype between the ER+/HER2- Luminal and ER- Basal subtypes, and let suggest a different cell-of-origin. Our data suggest that the ER+/HER2- Basal and Luminal subtypes should not be assimilated and treated as a homogeneous group.
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Affiliation(s)
- François Bertucci
- Laboratoire d’Oncologie Prédictive, Centre de Recherche en Cancérologie de Marseille, Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix-Marseille Université, Marseille, France
- Département d’Oncologie Médicale, Institut Paoli-Calmettes, Aix-Marseille Université, Marseille, France
| | - Pascal Finetti
- Laboratoire d’Oncologie Prédictive, Centre de Recherche en Cancérologie de Marseille, Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix-Marseille Université, Marseille, France
| | - Anthony Goncalves
- Laboratoire d’Oncologie Prédictive, Centre de Recherche en Cancérologie de Marseille, Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix-Marseille Université, Marseille, France
- Département d’Oncologie Médicale, Institut Paoli-Calmettes, Aix-Marseille Université, Marseille, France
| | - Daniel Birnbaum
- Laboratoire d’Oncologie Prédictive, Centre de Recherche en Cancérologie de Marseille, Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix-Marseille Université, Marseille, France
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El Khalki L, Maire V, Dubois T, Zyad A. Berberine Impairs the Survival of Triple Negative Breast Cancer Cells: Cellular and Molecular Analyses. Molecules 2020; 25:molecules25030506. [PMID: 31991634 PMCID: PMC7036777 DOI: 10.3390/molecules25030506] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/14/2020] [Accepted: 01/17/2020] [Indexed: 01/13/2023] Open
Abstract
Triple negative breast cancer (TNBC) is an aggressive breast cancer subtype. Non-available targeted therapy for TNBC represents its biggest treatment challenge. Thus, finding new promising effective drugs is urgently needed. In the present study, we investigated how berberine, a natural isoquinoline, impairs the survival of TNBC cells in both cellular and molecular levels. Our experimental model was based on the use of eight TNBC cell lines: MDA-MB-468, MDA-MB-231, HCC70, HCC38, HCC1937, HCC1143, BT-20, and BT-549. Berberine was cytotoxic against all treated TNBC cell lines. The most sensitive cell lines were HCC70 (IC50 = 0.19 µM), BT-20 (IC50 = 0.23 µM) and MDA-MB-468 (IC50 = 0.48 µM). Using flow cytometry techniques, berberine, at 0.5 and 1 µM for 120 and 144 h, not only induced cell cycle arrest, at G1 and/or G2/M phases, but it also triggered significant apoptosis. At the molecular level, these results are consistent with the expression of their related proteins using Western blot assays. Interestingly, while berberine was cytotoxic against TNBC cells, it had no effect on the viability of normal human breast cells MCF10A cultured in a 3D matrigel model. These results suggest that berberine may be a good potential candidate for TNBC drug development.
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Affiliation(s)
- Lamyae El Khalki
- Team of Experimental Oncology and Natural Substances, Cellular and Molecular Immunopharmacology, Faculty of Sciences and Techniques, Sultan Moulay Slimane University, Mailbox 523, 23000 Beni Mellal, Morocco;
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (V.M.); (T.D.)
| | - Virginie Maire
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (V.M.); (T.D.)
| | - Thierry Dubois
- Breast Cancer Biology Group, Translational Research Department, Institut Curie-PSL Research University, 75005 Paris, France; (V.M.); (T.D.)
| | - Abdelmajid Zyad
- Team of Experimental Oncology and Natural Substances, Cellular and Molecular Immunopharmacology, Faculty of Sciences and Techniques, Sultan Moulay Slimane University, Mailbox 523, 23000 Beni Mellal, Morocco;
- Correspondence: ; Tel.: +212-666-722-054; Fax: +212-523-485-201
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20
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Zhao S, Shao L, Wang Y, Meng Q, Yu J. Ketamine exhibits anti-gastric cancer activity via induction of apoptosis and attenuation of PI3K/Akt/mTOR. Arch Med Sci 2020; 16:1140-1149. [PMID: 32864003 PMCID: PMC7444715 DOI: 10.5114/aoms.2019.85146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/27/2019] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Gastric cancer (GC) is the most widespread type of cancer after lung and liver cancer in men and after breast cancer in women. Thus, the present study was intended to evaluate the effect of ketamine (KET) on gastric cancer cells. MATERIAL AND METHODS The effect of KET was analyzed in vitro by the MTT assay against human gastric cancer cell lines BGC-823, MKN-45 and MKN-28. The effect KET on apoptosis, cell migration and cell cycle arrest was also quantified. Western blot analysis was performed to estimate the effect of KET on apoptosis mediators and PI3K/AKT/mTOR pathway mediators. A mouse xenograft assay was also conducted to further confirm the anticancer activity. RESULTS KET causes reduction of cellular viability of BGC-823, MKN-45 and MKN-28, with a more significant effect against BGC-823 cells. The KET treatment showed a dose-dependent increase in apoptotic cells among BGC-823 cells. KET causes a significant dose-dependent decline in migration of treated cells. It causes induction of apoptosis mediated via the mitochondrial pathway, where it causes a decline in Bcl2 and mitochondrial cytochrome c level together with increase in expression of Bax, cytosolic cytochrome c and cytosolic apoptotic protease activating factor-1 (Apaf-1). The level of p-PI3K, p-mTOR, p-GSK3β and p-AKT was found to be downregulated in a dose-dependent manner in KET-treated cells. In a mouse xenograft model, KET causes a reduction in relative tumour volume and tumour weight. CONCLUSIONS Our results suggest that ketamine has the ability to inhibit progression of gastric cancer via induction of apoptosis and attenuation of PI3K/Akt/mTOR.
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Affiliation(s)
- Shiling Zhao
- Department of Anesthesiology, The Third People's Hospital of Dalian, Dalian, China
| | - Lin Shao
- Department of Anesthesiology, The Third People's Hospital of Dalian, Dalian, China
| | - Yingwei Wang
- Department of Anesthesiology, The Third People's Hospital of Dalian, Dalian, China
| | - Qingtao Meng
- Department of Spinal, Department of Anesthesiology, The Third People's Hospital of Dalian, Dalian, China
| | - Jinning Yu
- Department of General Surgery, The Third People's Hospital of Dalian, Dalian, China
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21
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Botti G, Cantile M, Collina F, Cerrone M, Sarno S, Anniciello A, Di Bonito M. Morphological and pathological features of basal-like breast cancer. Transl Cancer Res 2019; 8:S503-S509. [PMID: 35117128 PMCID: PMC8797286 DOI: 10.21037/tcr.2019.06.50] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 06/25/2019] [Indexed: 12/19/2022]
Abstract
Basal-like breast cancer (BLBC) is characterized by high grade, high mitotic indices, presence of central necrotic or fibrotic zones, and lymphocytic infiltrate. Patients presenting with BLBC have a poor prognosis and a short-term disease-free and overall survival. BLBCs may include different histological types of breast cancers but the most common histological type is represented by invasive ductal carcinomas of no special type (IDC-NST). Typical immunohistochemical markers for these tumors are basal-type cytokeratin markers such as CK5/6, CK14, CK17, but several BLBCs also express luminal-type CKs, such as CK8/18, CK19. Different molecular alterations, including BRCA1 dysfunction, p53 mutations, up-regulation of EGFR, inactivation of PTEN and the aberrant expression of many non-coding RNAs molecules are detected in BLBC cells suggesting the possibility of defining new targeted therapeutic strategies for this tumor type.
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Affiliation(s)
- Gerardo Botti
- Scientific Direction, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Monica Cantile
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Francesca Collina
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Margherita Cerrone
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Sabrina Sarno
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Annamaria Anniciello
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Maurizio Di Bonito
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
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22
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Improvement of the anti-proliferative activity of the peptide ERα17p in MCF-7 breast cancer cells using nanodiamonds. ANNALES PHARMACEUTIQUES FRANÇAISES 2019; 77:488-495. [PMID: 31563266 DOI: 10.1016/j.pharma.2019.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/08/2019] [Accepted: 07/08/2019] [Indexed: 12/29/2022]
Abstract
Nanodiamonds (NDs) are emerging delivery systems with biomedical applications and interesting perspectives in oncology. Their use has been proposed to assist the internalization of anticancer drugs and to decrease administered drug doses. The pro-apoptotic peptide ERα17p, which is issued from the hinge/N-terminus parts of the AF2 region of the human estrogen receptor α (ERα), is active at a concentration of 10μM on breast cancer cells and particularly on those cancer cells that are ERα-positive. We have synthesized ND@ERα17p conjugates by physisorption of the cationic peptide ERα17p on the surface of anionic NDs. Resulting ND@ERα17p suspensions were characterized by far-UV electronic circular dichroism (ECD), dynamic light scattering (DLS) and zetametry. We then tested the anti-proliferative action of ND@ERα17p on ERα-positive MCF-7 breast carcinoma cells. ND@ERα17p allowed a decrease of the active concentration to 0.1nM (ND@ERα17p), revealing unambiguously that NDs could be used to improve the anti-proliferative action of this peptide. This preliminary study proposes a novel approach for enhancing the apoptotic action displayed by ERα17p, in the context of breast cancer.
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23
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Abstract
Triple-negative breast cancer (TNBC) is characterised by poor outcomes and a historical lack of targeted therapies. Dysregulation of signalling through the phosphoinositide 3 (PI3)-kinase and AKT signalling pathway is one of the most frequent oncogenic aberrations of TNBC. Although mutations in individual genes occur relatively rarely, combined activating mutations in PIK3CA and AKT1, with inactivating mutations in phosphatase and tensin homologue, occur in ∼25%‒30% of advanced TNBC. Recent randomised trials suggest improved progression-free survival (PFS) with AKT-inhibitors in combination with first-line chemotherapy for patients with TNBC and pathway genetic aberrations. We review the evidence for PI3K pathway activation in TNBC, and clinical trial data for PI3K, AKT and mammalian target of rapamycin inhibitors in TNBC. We discuss uncertainty over defining which cancers have pathway activation and the future overlap between immunotherapy and pathway targeting.
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Affiliation(s)
- J Pascual
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London
| | - N C Turner
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London; Breast Unit, The Royal Marsden Hospital, London, UK.
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24
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Schneeweiss A, Denkert C, Fasching PA, Fremd C, Gluz O, Kolberg-Liedtke C, Loibl S, Lück HJ. Diagnosis and Therapy of Triple-Negative Breast Cancer (TNBC) - Recommendations for Daily Routine Practice. Geburtshilfe Frauenheilkd 2019; 79:605-617. [PMID: 31217629 PMCID: PMC6570613 DOI: 10.1055/a-0887-0285] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/29/2019] [Accepted: 04/01/2019] [Indexed: 02/08/2023] Open
Abstract
The rapid increase in knowledge in tumour biology and tumour pathogenesis of triple-negative breast cancer (TNBC) has resulted in new therapeutic approaches and new therapeutic concepts for treatment. For years, TNBC has been considered to be a difficult-to-treat tumour due to its generally aggressive tumour biology and in view of limited therapeutic options. The risk of recurrence and metastasis is higher than in the case of other breast cancer subtypes of the same stage. In addition to surgery and radiation in the curative situation, systemic chemotherapy with anthracyclines and/or taxanes is still the therapy of choice. New therapeutic approaches are based on the knowledge that TNBC is a molecularly very heterogeneous disease. Research groups are working to classify TNBC better and better on a molecular level and use this molecular subtyping as the basis for new therapeutic strategies. The most promising new approaches and considerations regarding the therapy of TNBCs are shown below. In addition, the current therapeutic strategies are discussed using a fictitious case history, taking the current data and the resultant therapeutic consequence into account.
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Affiliation(s)
- Andreas Schneeweiss
- Nationales Centrum für Tumorerkrankungen (NCT), Universitätsklinikum, Heidelberg, Germany.,Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | - Carsten Denkert
- Institut für Pathologie, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg, Philipps-Universität Marburg, Marburg, Germany
| | - Peter A Fasching
- Frauenklinik des Universitätsklinikums Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Carlo Fremd
- Nationales Centrum für Tumorerkrankungen (NCT), Universitätsklinikum, Heidelberg, Germany
| | - Oleg Gluz
- Brustzentrum Niederrhein, Evangelisches Krankenhaus Bethesda, Mönchengladbach, Germany.,Westdeutsche Studiengruppe, Mönchengladbach, Germany
| | | | - Sibylle Loibl
- German Breast Group c/o GBG Forschungs GmbH, Neu-Isenburg, Germany.,Zentrum für Hämatologie und Onkologie Bethanien, Goethe Universität Frankfurt, Frankfurt am Main, Germany
| | - Hans-Joachim Lück
- Gynäkologie Onkologie, Gynäkologisch-onkologische Praxis, Hannover, Germany
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25
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Muñoz DP, Yannone SM, Daemen A, Sun Y, Vakar-Lopez F, Kawahara M, Freund AM, Rodier F, Wu JD, Desprez PY, Raulet DH, Nelson PS, van ’t Veer LJ, Campisi J, Coppé JP. Targetable mechanisms driving immunoevasion of persistent senescent cells link chemotherapy-resistant cancer to aging. JCI Insight 2019; 5:124716. [PMID: 31184599 PMCID: PMC6675550 DOI: 10.1172/jci.insight.124716] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 06/05/2019] [Indexed: 12/12/2022] Open
Abstract
Cellular senescence is a tumor suppressive mechanism that can paradoxically contribute to aging pathologies. Despite evidence of immune clearance in mouse models, it is not known how senescent cells (SnCs) persist and accumulate with age or in tumors in individuals. Here, we identify cooperative mechanisms that orchestrate the immunoevasion and persistence of normal and cancer human SnCs through extracellular targeting of natural killer receptor signaling. Damaged SnCs avoid immune recognition through MMPs-dependent shedding of NKG2D-ligands reinforced via paracrine suppression of NKG2D receptor-mediated immunosurveillance. These coordinated immunoediting processes are evident in residual, drug-resistant tumors from cohorts of >700 prostate and breast cancer patients treated with senescence-inducing genotoxic chemotherapies. Unlike in mice, these reversible senescence-subversion mechanisms are independent of p53/p16 and exacerbated in oncogenic RAS-induced senescence. Critically, the p16INK4A tumor suppressor can disengage the senescence growth arrest from the damage-associated immune senescence program, which is manifest in benign nevi lesions where indolent SnCs accumulate over time and preserve a non-pro-inflammatory tissue microenvironment maintaining NKG2D-mediated immunosurveillance. Our study shows how subpopulations of SnCs elude immunosurveillance, and reveals secretome-targeted therapeutic strategies to selectively eliminate -and restore the clearance of- the detrimental SnCs that actively persist after chemotherapy and accumulate at sites of aging pathologies.
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Affiliation(s)
- Denise P. Muñoz
- Swim Across America National Laboratory, Children’s Hospital Oakland Research Institute, UCSF Benioff Children’s Hospital Oakland, Oakland, California, USA
| | - Steven M. Yannone
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, California, USA
| | - Anneleen Daemen
- Helen Diller Family Comprehensive Cancer Center, Department of Laboratory Medicine, UCSF, San Francisco, California, USA
| | - Yu Sun
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Funda Vakar-Lopez
- Department of Pathology, University of Washington, Seattle, Washington, USA
| | - Misako Kawahara
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, California, USA
- Helen Diller Family Comprehensive Cancer Center, Department of Laboratory Medicine, UCSF, San Francisco, California, USA
| | - Adam M. Freund
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, California, USA
- Buck Institute for Research on Aging, Novato, California, USA
| | - Francis Rodier
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, California, USA
| | - Jennifer D. Wu
- Department of Pathology, University of Washington, Seattle, Washington, USA
| | - Pierre-Yves Desprez
- Buck Institute for Research on Aging, Novato, California, USA
- Research Institute, California Pacific Medical Center, San Francisco, California, USA
| | - David H. Raulet
- Department of Molecular and Cell Biology, Division of Immunology and Pathogenesis, University of California, Berkeley, Berkeley, California, USA
| | - Peter S. Nelson
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Laura J. van ’t Veer
- Helen Diller Family Comprehensive Cancer Center, Department of Laboratory Medicine, UCSF, San Francisco, California, USA
| | - Judith Campisi
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, California, USA
- Buck Institute for Research on Aging, Novato, California, USA
| | - Jean-Philippe Coppé
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, California, USA
- Helen Diller Family Comprehensive Cancer Center, Department of Laboratory Medicine, UCSF, San Francisco, California, USA
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26
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Rajput S, Guo Z, Li S, Ma CX. PI3K inhibition enhances the anti-tumor effect of eribulin in triple negative breast cancer. Oncotarget 2019; 10:3667-3680. [PMID: 31217901 PMCID: PMC6557212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/29/2019] [Indexed: 11/20/2022] Open
Abstract
Loss of the tumor suppressor phosphatase and tensin homolog (PTEN) is commonly observed in triple negative breast cancer (TNBC), leading to activation of the phosphoinositide 3-kinase (PI3K) signaling to promote tumor cell growth and chemotherapy resistance. In this study, we investigated whether adding a pan-PI3K inhibitor could improve the cytotoxic effect of eribulin, a non-taxane microtubule inhibitor, in TNBC patient-derived xenograft models (PDX) with loss of PTEN, and the underlying molecular mechanisms. Three TNBC-PDX models (WHIM6, WHIM12 and WHIM21), all with loss of PTEN expression, were tested for their response to BKM120 and eribulin, alone or in combination in vivo. In addition, the effect of drug treatment on cell proliferation and cell cycle progression were also performed in vitro using a panel of TNBC cell lines, including 2 derived from PDX models. The combination of eribulin and BKM120 led to additive or synergistic anti-tumor effect in 2 of the 3 PDX models, accompanied by an enhanced mitotic arrest and apoptosis in sensitive PDX models. In addition, the combination was synergistic in reducing mammosphere formation, and markers for epithelial-mesenchymal transition (EMT). In conclusion, PI3K inhibition induces synergistic anti-tumor effect when combined with eribulin, by enhancing mitotic arrest and apoptosis, as well as, reducing the cancer stem cell population. This study provides a preclinical rationale to investigate the therapeutic potential for the combination of PI3K inhibition and eribulin in the difficult to treat TNBC. Further studies are needed to identify the biomarkers of response for target patient selection.
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Affiliation(s)
- Sandeep Rajput
- 1 Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Zhanfang Guo
- 1 Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Shunqiang Li
- 1 Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA,2 Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Cynthia X. Ma
- 1 Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA,2 Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO 63110, USA
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27
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Rajput S, Guo Z, Li S, Ma CX. PI3K inhibition enhances the anti-tumor effect of eribulin in triple negative breast cancer. Oncotarget 2019. [DOI: 10.18632/oncotarget.26960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Sandeep Rajput
- Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Zhanfang Guo
- Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Shunqiang Li
- Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Cynthia X. Ma
- Section of Medical Oncology, Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO 63110, USA
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28
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Xu M, Almasi S, Yang Y, Yan C, Sterea AM, Rizvi Syeda AK, Shen B, Richard Derek C, Huang P, Gujar S, Wang J, Zong WX, Trebak M, El Hiani Y, Dong XP. The lysosomal TRPML1 channel regulates triple negative breast cancer development by promoting mTORC1 and purinergic signaling pathways. Cell Calcium 2019; 79:80-88. [PMID: 30889511 PMCID: PMC6698368 DOI: 10.1016/j.ceca.2019.02.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 02/21/2019] [Indexed: 01/05/2023]
Abstract
The triple-negative breast cancer (TNBC) that comprises approximately 10%-20% of breast cancers is an aggressive subtype lacking effective therapeutics. Among various signaling pathways, mTORC1 and purinergic signals have emerged as potentially fruitful targets for clinical therapy of TNBC. Unfortunately, drugs targeting these signaling pathways do not successfully inhibit the progression of TNBC, partially due to the fact that these signaling pathways are essential for the function of all types of cells. In this study, we report that TRPML1 is specifically upregulated in TNBCs and that its genetic downregulation and pharmacological inhibition suppress the growth of TNBC. Mechanistically, we demonstrate that TRPML1 regulates TNBC development, at least partially, through controlling mTORC1 activity and the release of lysosomal ATP. Because TRPML1 is specifically activated by cellular stresses found in tumor microenvironments, antagonists of TRPML1 could represent anticancer drugs with enhanced specificity and potency. Our findings are expected to have a major impact on drug targeting of TNBCs.
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Affiliation(s)
- Mengnan Xu
- Department of Physiology and Biophysics, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada; Department of Physiology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Shekoufeh Almasi
- Department of Biology, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Yiming Yang
- Department of Physiology and Biophysics, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Chi Yan
- Department of Microbiology & Immunology, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Andra Mihaela Sterea
- Department of Physiology and Biophysics, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Alia Kazim Rizvi Syeda
- Department of Physiology and Biophysics, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Bing Shen
- Department of Physiology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Clements Richard Derek
- Department of Microbiology & Immunology, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Peng Huang
- College of Basic Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Shashi Gujar
- Department of Microbiology & Immunology, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Jun Wang
- Department of Microbiology & Immunology, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada
| | - Wei-Xing Zong
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, 164 Frelinghuysen Road, Piscataway NJ08854, USA
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey PA 17033, USA
| | - Yassine El Hiani
- Department of Physiology and Biophysics, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada.
| | - Xian-Ping Dong
- Department of Physiology and Biophysics, Dalhousie University, 5850 College Street, Halifax, B3H 4R2, Nova Scotia, Canada; Department of Physiology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China.
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29
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Vinet M, Suresh S, Maire V, Monchecourt C, Némati F, Lesage L, Pierre F, Ye M, Lescure A, Brisson A, Meseure D, Nicolas A, Rigaill G, Marangoni E, Del Nery E, Roman-Roman S, Dubois T. Protein arginine methyltransferase 5: A novel therapeutic target for triple-negative breast cancers. Cancer Med 2019; 8:2414-2428. [PMID: 30957988 PMCID: PMC6537044 DOI: 10.1002/cam4.2114] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 01/15/2023] Open
Abstract
TNBC is a highly heterogeneous and aggressive breast cancer subtype associated with high relapse rates, and for which no targeted therapy yet exists. Protein arginine methyltransferase 5 (PRMT5), an enzyme which catalyzes the methylation of arginines on histone and non‐histone proteins, has recently emerged as a putative target for cancer therapy. Potent and specific PRMT5 inhibitors have been developed, but the therapeutic efficacy of PRMT5 targeting in TNBC has not yet been demonstrated. Here, we examine the expression of PRMT5 in a human breast cancer cohort obtained from the Institut Curie, and evaluate the therapeutic potential of pharmacological inhibition of PRMT5 in TNBC. We find that PRMT5 mRNA and protein are expressed at comparable levels in TNBC, luminal breast tumors, and healthy mammary tissues. However, immunohistochemistry analyses reveal that PRMT5 is differentially localized in TNBC compared to other breast cancer subtypes and to normal breast tissues. PRMT5 is heterogeneously expressed in TNBC and high PRMT5 expression correlates with poor prognosis within this breast cancer subtype. Using the small‐molecule inhibitor EPZ015666, we show that PRMT5 inhibition impairs cell proliferation in a subset of TNBC cell lines. PRMT5 inhibition triggers apoptosis, regulates cell cycle progression and decreases mammosphere formation. Furthermore, EPZ015666 administration to a patient‐derived xenograft model of TNBC significantly deters tumor progression. Finally, we reveal potentiation between EGFR and PRMT5 targeting, suggestive of a beneficial combination therapy. Our findings highlight a distinctive subcellular localization of PRMT5 in TNBC, and uphold PRMT5 targeting, alone or in combination, as a relevant treatment strategy for a subset of TNBC.
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Affiliation(s)
- Mathilde Vinet
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France
| | - Samyuktha Suresh
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France
| | - Virginie Maire
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France
| | - Clarisse Monchecourt
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France
| | - Fariba Némati
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Preclinical Investigation Laboratory, Institut Curie, Paris, France
| | - Laetitia Lesage
- Platform of Investigative Pathology, Department of Pathology, Institut Curie, Paris, France
| | - Fabienne Pierre
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France.,Biophenics High-Content Screening Laboratory, Cell and Tissue Imaging Facility (PICT-IBiSA), Institut Curie, Paris, France
| | - Mengliang Ye
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France
| | - Auriane Lescure
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Biophenics High-Content Screening Laboratory, Cell and Tissue Imaging Facility (PICT-IBiSA), Institut Curie, Paris, France
| | - Amélie Brisson
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France
| | - Didier Meseure
- Platform of Investigative Pathology, Department of Pathology, Institut Curie, Paris, France
| | - André Nicolas
- Platform of Investigative Pathology, Department of Pathology, Institut Curie, Paris, France
| | - Guillem Rigaill
- Institute of Plant Sciences Paris-Saclay (IPS2), UMR 9213, UMR1403, CNRS, INRA, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne, Paris-Cité, Orsay, France.,Laboratoire de Mathématiques et Modélisation d'Evry (LaMME), Université d'Evry Val d'Essonne, UMR CNRS 8071, ENSIIE, USC INRA, Evry, France
| | - Elisabetta Marangoni
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Preclinical Investigation Laboratory, Institut Curie, Paris, France
| | - Elaine Del Nery
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Biophenics High-Content Screening Laboratory, Cell and Tissue Imaging Facility (PICT-IBiSA), Institut Curie, Paris, France
| | - Sergio Roman-Roman
- Translational Research Department, Institut Curie, PSL Research University, Paris, France
| | - Thierry Dubois
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Institut Curie, Paris, France
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30
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Yamamoto Y, Fujita K, Munari E, Uemura M, Miyamoto H, Netto GJ. Clinical implication of the mammalian target of rapamycin pathway in upper tract urothelial carcinoma with negative GATA binding protein 3 expression. Int J Urol 2019; 26:678-679. [PMID: 30854704 DOI: 10.1111/iju.13940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoshiyuki Yamamoto
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kazutoshi Fujita
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Enrico Munari
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Motohide Uemura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.,Department of Urological Immuno-Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiroshi Miyamoto
- Departments of Pathology and Laboratory Medicine, Urology, and Oncology, University of Rochester Medical Center, Rochester, New York, USA
| | - George J Netto
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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31
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Maire V, Mahmood F, Rigaill G, Ye M, Brisson A, Némati F, Gentien D, Tucker GC, Roman-Roman S, Dubois T. LRP8 is overexpressed in estrogen-negative breast cancers and a potential target for these tumors. Cancer Med 2018; 8:325-336. [PMID: 30575334 PMCID: PMC6346259 DOI: 10.1002/cam4.1923] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/19/2018] [Accepted: 11/23/2018] [Indexed: 12/17/2022] Open
Abstract
Triple‐negative breast cancer (TNBC) is the breast cancer subtype with the worst prognosis. New treatments improving the survival of TNBC patients are, therefore, urgently required. We performed a transcriptome microarray analysis to identify new treatment targets for TNBC. We found that low‐density lipoprotein receptor‐related protein 8 (LRP8) was more strongly expressed in estrogen receptor‐negative breast tumors, including TNBCs and those overexpressing HER2, than in luminal breast tumors and normal breast tissues. LRP8 depletion decreased cell proliferation more efficiently in estrogen receptor‐negative breast cancer cell lines: TNBC and HER2 overexpressing cell lines. We next focused on TNBC cells for which targeted therapies are not available. LRP8 depletion induced an arrest of the cell cycle progression in G1 phase and programmed cell death. We also found that LRP8 is required for anchorage‐independent growth in vitro, and that its depletion in vivo slowed tumor growth in a xenograft model. Our findings suggest that new approaches targeting LRP8 may constitute promising treatments for hormone‐negative breast cancers, those overexpressing HER2 and TNBCs.
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Affiliation(s)
- Virginie Maire
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Paris, France
| | - Faisal Mahmood
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Paris, France
| | - Guillem Rigaill
- Institute of Plant Sciences Paris-Saclay (IPS2), UMR 9213, UMR1403, CNRS, INRA, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, Orsay, France.,Laboratoire de Mathématiques et Modélisation d'Evry (LaMME), Université d'Evry Val d'Essonne, UMR CNRS 8071, ENSIIE, USC INRA, Evry, France
| | - Mengliang Ye
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Paris, France
| | - Amélie Brisson
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Paris, France
| | - Fariba Némati
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Preclinical Investigation Laboratory, Paris, France
| | - David Gentien
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Genomics Platform, Paris, France
| | - Gordon C Tucker
- Center for Therapeutic Innovation in Oncology, Institut de Recherches SERVIER, Croissy-sur-Seine, France
| | - Sergio Roman-Roman
- Translational Research Department, Institut Curie, PSL Research University, Paris, France
| | - Thierry Dubois
- Translational Research Department, Institut Curie, PSL Research University, Paris, France.,Breast Cancer Biology Group, Paris, France
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32
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Moses C, Nugent F, Waryah CB, Garcia-Bloj B, Harvey AR, Blancafort P. Activating PTEN Tumor Suppressor Expression with the CRISPR/dCas9 System. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 14:287-300. [PMID: 30654190 PMCID: PMC6348769 DOI: 10.1016/j.omtn.2018.12.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 12/22/2022]
Abstract
PTEN expression is lost in many cancers, and even small changes in PTEN activity affect susceptibility and prognosis in a range of highly aggressive malignancies, such as melanoma and triple-negative breast cancer (TNBC). Loss of PTEN expression occurs via multiple mechanisms, including mutation, transcriptional repression and epigenetic silencing. Transcriptional repression of PTEN contributes to resistance to inhibitors used in the clinic, such as B-Raf inhibitors in BRAF mutant melanoma. We aimed to activate PTEN expression using the CRISPR system, specifically dead (d) Cas9 fused to the transactivator VP64-p65-Rta (VPR). dCas9-VPR was directed to the PTEN proximal promoter by single-guide RNAs (sgRNAs), in cancer cells that exhibited low levels of PTEN expression. The dCas9-VPR system increased PTEN expression in melanoma and TNBC cell lines, without transcriptional regulation at predicted off-target sgRNA binding sites. PTEN activation significantly repressed downstream oncogenic pathways, including AKT, mTOR, and MAPK signaling. BRAF V600E mutant melanoma cells transduced with dCas9-VPR displayed reduced migration, as well as diminished colony formation in the presence of B-Raf inhibitors, PI3K/mTOR inhibitors, and with combined PI3K/mTOR and B-Raf inhibition. CRISPR-mediated targeted activation of PTEN may provide an alternative therapeutic approach for highly aggressive cancers that are refractory to current treatments.
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Affiliation(s)
- Colette Moses
- Cancer Epigenetics Laboratory, The Harry Perkins Institute of Medical Research, 6 Verdun Street, Nedlands, WA 6009, Australia; School of Human Sciences, Faculty of Science, The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia
| | - Fiona Nugent
- Cancer Epigenetics Laboratory, The Harry Perkins Institute of Medical Research, 6 Verdun Street, Nedlands, WA 6009, Australia; School of Molecular Sciences, Faculty of Science, The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia
| | - Charlene Babra Waryah
- Cancer Epigenetics Laboratory, The Harry Perkins Institute of Medical Research, 6 Verdun Street, Nedlands, WA 6009, Australia
| | - Benjamin Garcia-Bloj
- Cancer Epigenetics Laboratory, The Harry Perkins Institute of Medical Research, 6 Verdun Street, Nedlands, WA 6009, Australia; School of Medicine, Faculty of Science, Universidad Mayor, Camino la Piramide 5750, Huechuraba 8580745, Santiago, Chile
| | - Alan R Harvey
- School of Human Sciences, Faculty of Science, The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia; Perron Institute for Neurological and Translational Science, 8 Verdun Street, Nedlands, WA 6009, Australia
| | - Pilar Blancafort
- Cancer Epigenetics Laboratory, The Harry Perkins Institute of Medical Research, 6 Verdun Street, Nedlands, WA 6009, Australia; School of Human Sciences, Faculty of Science, The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia.
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33
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Jo J, Kim SH, Kim H, Jeong M, Kwak JH, Taek Han Y, Jeong JY, Jung YS, Yun H. Discovery and SAR studies of novel 2-anilinopyrimidine-based selective inhibitors against triple-negative breast cancer cell line MDA-MB-468. Bioorg Med Chem Lett 2018; 29:62-65. [PMID: 30447889 DOI: 10.1016/j.bmcl.2018.11.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/30/2018] [Accepted: 11/06/2018] [Indexed: 12/18/2022]
Abstract
Triple-negative breast cancers (TNBCs) are characterized as an invasive and intractable subtype of breast cancers. Overexpression of epidermal growth factor receptor (EGFR) has been considered to be an important target for TNBC therapy, but efficacies of EGFR inhibitors in clinical trials are elusive. In this study, novel series of 2-anilinopyrimidines were synthesized in an effort to identify selective inhibitors against an EGFR-overexpressing TNBC cell line. Biological evaluation demonstrated that compounds 21 and 38, with a 4-methylpiperidine group and a high ClogP value, exhibited good potency and selectivity for the TNBC cell line. This study has provided evidence to support further development of 2-anilinopyrimidine-based TNBC selective inhibitors and investigation of the targets of compounds 21 and 38.
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Affiliation(s)
- Jeyun Jo
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Sou Hyun Kim
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Heegyu Kim
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Myeonggyo Jeong
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Jae-Hwan Kwak
- College of Pharmacy, Kyungsung University, Busan 48434, Republic of Korea
| | - Young Taek Han
- College of Pharmacy, Dankook University, Cheonan 31116, Republic of Korea
| | - Jee-Yeong Jeong
- Department of Biochemistry, Kosin University College of Medicine, Busan 49267, Republic of Korea
| | - Young-Suk Jung
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.
| | - Hwayoung Yun
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.
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Estrogen receptor-beta is a potential target for triple negative breast cancer treatment. Oncotarget 2018; 9:33912-33930. [PMID: 30338035 PMCID: PMC6188058 DOI: 10.18632/oncotarget.26089] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 07/12/2018] [Indexed: 12/31/2022] Open
Abstract
Triple Negative breast cancer (TNBC) is a subtype of breast cancer that lacks the expression of estrogen receptor (ER), progesterone receptor, and human epidermal growth factor receptor 2. TNBC accounts for 15-20% of all breast cancer cases but accounts for over 50% of mortality. We propose that Estrogen receptor-beta (ERβ) and IGF2 play a significant role in the pathogenesis of TNBCs, and could be important targets for future therapy. Tissue microarrays (TMAs) from over 250 TNBC patients' were analyzed for ERβ and IGF2 expression by immunohistochemistry. Expression was correlated with clinical outcomes. In addition, TNBC cell lines Caucasians (CA): MB-231/BT549 and African Americans (AAs): MB-468/HCC70/HCC1806 were used to investigate the effect of hormonal and growth factor regulation on cell proliferation. TMAs from AAs had higher expression of ERβ and IGF2 expression when compared to CA. ERβ and IGF2 were found to be upregulated in our TNBC cell lines when compared to other cell types. TNBC cells treated with ERβ agonist displayed significant increase in cell proliferation and migration when compared to controls. AA tissue samples from TNBC patients had higher expression of ERβ. African-American breast cancer TNBC tissue samples from TNBC patients have higher expression of ERβ. In addition, TNBC cell lines were also found to express high levels of ERβ. IGF2 increased transcription of ERβ in TNBC cells. Understanding the mechanisms of IGF2/ERβ axis in TNBC tumors could provide an opportunity to target this aggressive subtype of breast cancer.
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35
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Lynch JT, Polanska UM, Hancox U, Delpuech O, Maynard J, Trigwell C, Eberlein C, Lenaghan C, Polanski R, Avivar-Valderas A, Cumberbatch M, Klinowska T, Critchlow SE, Cruzalegui F, Barry ST. Combined Inhibition of PI3Kβ and mTOR Inhibits Growth of PTEN-null Tumors. Mol Cancer Ther 2018; 17:2309-2319. [PMID: 30097489 DOI: 10.1158/1535-7163.mct-18-0183] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 06/12/2018] [Accepted: 08/02/2018] [Indexed: 11/16/2022]
Abstract
Loss of the tumor suppressor PTEN confers a tumor cell dependency on the PI3Kβ isoform. Achieving maximal inhibition of tumor growth through PI3K pathway inhibition requires sustained inhibition of PI3K signaling; however, efficacy is often limited by suboptimal inhibition or reactivation of the pathway. To select combinations that deliver comprehensive suppression of PI3K signaling in PTEN-null tumors, the PI3Kβ inhibitor AZD8186 was combined with inhibitors of kinases implicated in pathway reactivation in an extended cell proliferation assay. Inhibiting PI3Kβ and mTOR gave the most effective antiproliferative effects across a panel of PTEN-null tumor cell lines. The combination of AZD8186 and the mTOR inhibitor vistusertib was also effective in vivo controlling growth of PTEN-null tumor models of TNBC, prostate, and renal cancers. In vitro, the combination resulted in increased suppression of pNDRG1, p4EBP1, as well as HMGCS1 with reduced pNDRG1 and p4EBP1 more closely associated with effective suppression of proliferation. In vivo biomarker analysis revealed that the monotherapy and combination treatment consistently reduced similar biomarkers, while combination increased nuclear translocation of the transcription factor FOXO3 and reduction in glucose uptake. These data suggest that combining the PI3Kβ inhibitor AZD8186 and vistusertib has potential to be an effective combination treatment for PTEN-null tumors. Mol Cancer Ther; 17(11); 2309-19. ©2018 AACR.
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Affiliation(s)
- James T Lynch
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Urszula M Polanska
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Ursula Hancox
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Alderley Park, United Kingdom
| | - Oona Delpuech
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Juliana Maynard
- Alderley Imaging, Alderley Park Ltd, Alderley Park, United Kingdom
| | - Catherine Trigwell
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Catherine Eberlein
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Carol Lenaghan
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Radoslaw Polanski
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Alvaro Avivar-Valderas
- Translational Sciences, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Marie Cumberbatch
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Teresa Klinowska
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Susan E Critchlow
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Francisco Cruzalegui
- Translational Sciences, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Simon T Barry
- Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, United Kingdom.
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36
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Inhibition of mTOR downregulates expression of DNA repair proteins and is highly efficient against BRCA2-mutated breast cancer in combination to PARP inhibition. Oncotarget 2018; 9:29587-29600. [PMID: 30038706 PMCID: PMC6049870 DOI: 10.18632/oncotarget.25640] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 06/01/2018] [Indexed: 11/25/2022] Open
Abstract
Breast cancer is a complex disease in which each patient could present several genetic alterations that are therapeutically relevant in cancers. Here we explored the therapeutic benefit of combining PARP and mTOR inhibitors in a context of DNA repair deficiency and PI3K pathway activation. The combination of everolimus and olaparib was tested in BRCA2-mutated patient-derived xenografts (PDX) carrying alterations in the PI3K/AKT/mTOR pathway. An RPPA analysis of different signalling pathways was performed in untreated and treated xenografts. Everolimus and olaparib showed marked anti-tumor activities in the monotherapy setting and high efficacy when given in combination with 100% of mice showing tumor regressions. The fraction of P-H2AX positive cells was increased in both monotherapy arms and strongly increased in the combination setting. Everolimus given as monotherapy resulted in downregulation of different proteins involved in DNA damage repair, including FANCD2, RAD50 and SUV39H1. In the combination setting, expression of these proteins was almost completely abolished, suggesting convergence of PARP and mTOR in downregulation of DNA damage repair components. In conclusion, our results suggest that combining mTOR and DNA repair inhibition could be a successful strategy to treat a subset of breast cancer with BRCA2 mutation and alterations in the PI3K/AKT/mTOR pathway.
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37
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Van Swearingen AED, Sambade MJ, Siegel MB, Sud S, McNeill RS, Bevill SM, Chen X, Bash RE, Mounsey L, Golitz BT, Santos C, Deal A, Parker JS, Rashid N, Miller CR, Johnson GL, Anders CK. Combined kinase inhibitors of MEK1/2 and either PI3K or PDGFR are efficacious in intracranial triple-negative breast cancer. Neuro Oncol 2018; 19:1481-1493. [PMID: 28486691 DOI: 10.1093/neuonc/nox052] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Triple-negative breast cancer (TNBC), lacking expression of hormone and human epidermal growth factor receptor 2 receptors, is an aggressive subtype that frequently metastasizes to the brain and has no FDA-approved systemic therapies. Previous literature demonstrates mitogen-activated protein kinase kinase (MEK) pathway activation in TNBC brain metastases. Thus, we aimed to discover rational combinatorial therapies with MEK inhibition, hypothesizing that co-inhibition using clinically available brain-penetrant inhibitors would improve survival in preclinical models of TNBC brain metastases. Methods Using human-derived TNBC cell lines, synthetic lethal small interfering RNA kinase screens were evaluated with brain-penetrant inhibitors against MEK1/2 (selumetinib, AZD6244) or phosphatidylinositol-3 kinase (PI3K; buparlisib, BKM120). Mice bearing intracranial TNBC tumors (SUM149, MDA-MB-231Br, MDA-MB-468, or MDA-MB-436) were treated with MEK, PI3K, or platelet derived growth factor receptor (PDGFR; pazopanib) inhibitors alone or in combination. Tumors were analyzed by western blot and multiplexed kinase inhibitor beads/mass spectrometry to assess treatment effects. Results Screens identified MEK+PI3K and MEK+PDGFR inhibitors as tractable, rational combinations. Dual treatment of selumetinib with buparlisib or pazopanib was synergistic in TNBC cells in vitro. Both combinations improved survival in intracranial SUM149 and MDA-MB-231Br, but not MDA-MB-468 or MDA-MB-436. Treatments decreased mitogen-activated protein kinase (MAPK) and PI3K (Akt) signaling in sensitive (SUM149 and 231Br) but not resistant models (MDA-MB-468). Exploratory analysis of kinome reprogramming in SUM149 intracranial tumors after MEK ± PI3K inhibition demonstrates extensive kinome changes with treatment, especially in MAPK pathway members. Conclusions Results demonstrate that rational combinations of the clinically available inhibitors selumetinib with buparlisib or pazopanib may prove to be promising therapeutic strategies for the treatment of some TNBC brain metastases. Additionally, effective combination treatments cause widespread alterations in kinase pathways, including targetable potential resistance drivers.
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Affiliation(s)
- Amanda E D Van Swearingen
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Maria J Sambade
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Marni B Siegel
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Shivani Sud
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Robert S McNeill
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Samantha M Bevill
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Xin Chen
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ryan E Bash
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Louisa Mounsey
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Brian T Golitz
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Charlene Santos
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Allison Deal
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Joel S Parker
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Naim Rashid
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - C Ryan Miller
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Gary L Johnson
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Carey K Anders
- Lineberger Comprehensive Cancer Center, Departments of Genetics, Pharmacology, Pathology & Laboratory Medicine, Laboratory Animal Medicine, Biostatistics, and Medicine, Divisions of Neuropathology, Hematology/Oncology, School of Medicine, and Neurology and Neurosciences Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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38
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Rodríguez Bautista R, Ortega Gómez A, Hidalgo Miranda A, Zentella Dehesa A, Villarreal-Garza C, Ávila-Moreno F, Arrieta O. Long non-coding RNAs: implications in targeted diagnoses, prognosis, and improved therapeutic strategies in human non- and triple-negative breast cancer. Clin Epigenetics 2018; 10:88. [PMID: 29983835 PMCID: PMC6020372 DOI: 10.1186/s13148-018-0514-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 06/05/2018] [Indexed: 12/31/2022] Open
Abstract
Triple-negative breast cancer (TNBC) has been clinically difficult to manage because of tumor aggressiveness, cellular and histological heterogeneity, and molecular mechanisms’ complexity. All this in turn leads us to evaluate that tumor biological behavior is not yet fully understood. Additionally, the heterogeneity of tumor cells represents a great biomedicine challenge in terms of the complex molecular—genetical-transcriptional and epigenetical—mechanisms, which have not been fully elucidated on human solid tumors. Recently, human breast cancer, but specifically TNBC is under basic and clinical-oncology research in the discovery of new molecular biomarkers and/or therapeutic targets to improve treatment responses, as well as for seeking algorithms for patient stratification, seeking a positive impact in clinical-oncology outcomes and life quality on breast cancer patients. In this sense, important knowledge is emerging regarding several cancer molecular aberrations, including higher genetic mutational rates, LOH, CNV, chromosomal, and epigenetic alterations, as well as transcriptome aberrations in terms of the total gene-coding ribonucleic acids (RNAs), known as mRNAs, as well as non-coding RNA (ncRNA) sequences. In this regard, novel investigation fields have included microRNAs (miRNAs), as well as long ncRNAs (lncRNAs), which have been importantly related and are likely involved in the induction, promotion, progression, and/or clinical therapeutic response trackers of TNBC. Based on this, in general terms according with the five functional archetype classification, the lncRNAs may be involved in the regulation of several molecular mechanisms which include genetic expression, epigenetic, transcriptional, and/or post-transcriptional mechanisms, which are nowadays not totally understood. Here, we have reviewed the main dis-regulated and functionally non- and well-characterized lncRNAs and their likely involvement, from a molecular enrichment and mechanistic point of view, as tumor biomarkers for breast cancer and its specific histological subtype, TNBC. In reference to the abovementioned, it has been described that some lncRNA expression profiles correspond or are associated with the TNBC histological subtype, potentially granting their use for TNBC malignant progression, diagnosis, tumor clinical stage, and likely therapy. Based on this, lncRNAs have been proposed as potential biomarkers which might represent potential predictive tools in the differentiated breast carcinomas versus TNBC malignant disease. Finally, elucidation of the specific or multi-functional archetypal of lncRNAs in breast cancer and TNBC could be fundamental, as these molecular intermediary-regulator “lncRNAs” are widely involved in the genome expression, epigenome regulation, and transcriptional and post-transcriptional tumor biology, which in turn will probably represent a new prospect in clinical and/or therapeutic molecular targets for the oncological management of breast carcinomas in general and also for TNBC patients.
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Affiliation(s)
- Rubén Rodríguez Bautista
- Thoracic Oncology Unit and Laboratory of Personalized Medicine, Instituto Nacional de Cancerología (INCan), San Fernando #22, Section XVI, Tlalpan, 14080, Mexico City, Mexico.,Biomedical Science Doctorate Program, National Autonomous University of Mexico, Mexico City, Mexico
| | - Alette Ortega Gómez
- Thoracic Oncology Unit and Laboratory of Personalized Medicine, Instituto Nacional de Cancerología (INCan), San Fernando #22, Section XVI, Tlalpan, 14080, Mexico City, Mexico.
| | | | - Alejandro Zentella Dehesa
- Biochemistry Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico D.F, Mexico
| | | | - Federico Ávila-Moreno
- Lung Diseases And Cancer Epigenomics Laboratory, Biomedicine Research Unit (UBIMED), Facultad de Estudios Superiores (FES) Iztacala, National University Autonomous of México (UNAM), Mexico City, Mexico.,Research Unit, National Institute of Respiratory Diseases (INER) "Ismael Cosío Villegas", Mexico City, Mexico
| | - Oscar Arrieta
- Thoracic Oncology Unit and Laboratory of Personalized Medicine, Instituto Nacional de Cancerología (INCan), San Fernando #22, Section XVI, Tlalpan, 14080, Mexico City, Mexico
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39
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Cao L, Yang Y, Ye Z, Lin B, Zeng J, Li C, Liang T, Zhou K, Li J. Quercetin‑3‑methyl ether suppresses human breast cancer stem cell formation by inhibiting the Notch1 and PI3K/Akt signaling pathways. Int J Mol Med 2018; 42:1625-1636. [PMID: 29956731 DOI: 10.3892/ijmm.2018.3741] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 06/20/2018] [Indexed: 11/06/2022] Open
Abstract
Breast cancer is a leading cause of mortality among women with cancer worldwide. Quercetin‑3‑methyl ether, a natural compound occurring in various plants, has been indicated to have potent anticancer activity. Breast cancer cell growth and survival were examined by CCK‑8 and colony formation assay, whilst cell cycle and apoptosis were determined by flow cytometry. Cell invasion and migration were assessed by wound‑healing assay and Transwell assay. Cancer stem cell formation was analyzed by mammosphere formation assay and related signaling pathways were detected by western blotting. In the present study, it was observed that treatment with quercetin‑3‑methyl ether significantly inhibited cell growth, induced apoptosis and cell cycle arrest at the G2‑M phase, and suppressed invasion and migration in human breast cancer cells, including the triple negative MDAMB‑231 cell line, and the estrogen receptor‑positive/progesterone receptor‑positive/human epidermal growth factor receptor 2‑negative MCF‑7 and T47D cell lines. This compound also markedly suppressed the epithelial‑mesenchymal transition process as evidenced by the upregulated expression of E‑cadherin, and the concomitant downregulated expression of vimentin and MMP‑2. Furthermore, it was demonstrated that quercetin‑3‑methyl ether treatment inhibited mammosphere formation and the expression of the stemness‑related genes, SRY‑box 2 and Nanog. Mechanistically, this compound decreased the expression of Notch1, and induced the phosphorylation of phosphoinositide 3‑kinase (PI3K) and Akt. It also attenuated the human insulin growth factor 1‑induced phosphorylation of PI3K, Akt and glycogen synthase kinase β. Additionally, the combination of quercetin‑3‑methyl ether and a secretase inhibitor (DAPT) exhibited additive suppression of the expression of Notch1, PI3K, Akt and mammalian target of rapamycin and a more marked inhibitory effect on cell proliferation and colony formation compared with either drug alone. Treatment with quercetin‑3‑methyl ether alone markedly suppressed the levels of tri‑methyl histone H3 (Lys27), but had no effect on the expression of enhancer of zeste homolog 2. Overall, these findings indicated that quercein‑3‑methyl ether may be a potential therapeutic compound for the treatment of triple negative and hormone‑sensitive breast cancer.
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Affiliation(s)
- Longbin Cao
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Yunxiao Yang
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Ziyu Ye
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Bihua Lin
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Jincheng Zeng
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Caihong Li
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Tong Liang
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Keyuan Zhou
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Jixia Li
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
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40
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Mundt F, Rajput S, Li S, Ruggles KV, Mooradian AD, Mertins P, Gillette MA, Krug K, Guo Z, Hoog J, Erdmann-Gilmore P, Primeau T, Huang S, Edwards DP, Wang X, Wang X, Kawaler E, Mani DR, Clauser KR, Gao F, Luo J, Davies SR, Johnson GL, Huang KL, Yoon CJ, Ding L, Fenyö D, Ellis MJ, Townsend RR, Held JM, Carr SA, Ma CX. Mass Spectrometry-Based Proteomics Reveals Potential Roles of NEK9 and MAP2K4 in Resistance to PI3K Inhibition in Triple-Negative Breast Cancers. Cancer Res 2018; 78:2732-2746. [PMID: 29472518 PMCID: PMC5955814 DOI: 10.1158/0008-5472.can-17-1990] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 01/09/2018] [Accepted: 02/19/2018] [Indexed: 12/20/2022]
Abstract
Activation of PI3K signaling is frequently observed in triple-negative breast cancer (TNBC), yet PI3K inhibitors have shown limited clinical activity. To investigate intrinsic and adaptive mechanisms of resistance, we analyzed a panel of patient-derived xenograft models of TNBC with varying responsiveness to buparlisib, a pan-PI3K inhibitor. In a subset of patient-derived xenografts, resistance was associated with incomplete inhibition of PI3K signaling and upregulated MAPK/MEK signaling in response to buparlisib. Outlier phosphoproteome and kinome analyses identified novel candidates functionally important to buparlisib resistance, including NEK9 and MAP2K4. Knockdown of NEK9 or MAP2K4 reduced both baseline and feedback MAPK/MEK signaling and showed synthetic lethality with buparlisib in vitro A complex in/del frameshift in PIK3CA decreased sensitivity to buparlisib via NEK9/MAP2K4-dependent mechanisms. In summary, our study supports a role for NEK9 and MAP2K4 in mediating buparlisib resistance and demonstrates the value of unbiased omic analyses in uncovering resistance mechanisms to targeted therapy.Significance: Integrative phosphoproteogenomic analysis is used to determine intrinsic resistance mechanisms of triple-negative breast tumors to PI3K inhibition. Cancer Res; 78(10); 2732-46. ©2018 AACR.
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Affiliation(s)
- Filip Mundt
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Sandeep Rajput
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Shunqiang Li
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Kelly V Ruggles
- Department of Medicine, New York University Langone Health, New York, New York
| | - Arshag D Mooradian
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Philipp Mertins
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Proteomics Platform, Max Delbrück Center for Molecular Medicine in the Helmholtz Society, Berlin, Germany and Berlin Institute of Health, Berlin, Germany
| | - Michael A Gillette
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Karsten Krug
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Zhanfang Guo
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Jeremy Hoog
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Petra Erdmann-Gilmore
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Tina Primeau
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Shixia Huang
- Dan L. Duncan Cancer Center and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Dean P Edwards
- Dan L. Duncan Cancer Center and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Xiaowei Wang
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Xuya Wang
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, New York University Langone Health, New York, New York
| | - Emily Kawaler
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, New York University Langone Health, New York, New York
| | - D R Mani
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Karl R Clauser
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Feng Gao
- Division of Public Health Science, Siteman Cancer Center Biostatistics Core, Washington University School of Medicine, St. Louis, Missouri
| | - Jingqin Luo
- Division of Public Health Science, Siteman Cancer Center Biostatistics Core, Washington University School of Medicine, St. Louis, Missouri
| | - Sherri R Davies
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Gary L Johnson
- Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Kuan-Lin Huang
- Department of Medicine, McDonnell Genome Institute, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
| | - Christopher J Yoon
- Department of Medicine, McDonnell Genome Institute, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
| | - Li Ding
- Department of Medicine, McDonnell Genome Institute, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
| | - David Fenyö
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, New York University Langone Health, New York, New York
| | - Matthew J Ellis
- Lester and Sue Smith Breast Center, Dan L. Duncan Comprehensive Cancer Center and Departments of Medicine and Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - R Reid Townsend
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Jason M Held
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Steven A Carr
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
| | - Cynthia X Ma
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri.
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41
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Maubant S, Tahtouh T, Brisson A, Maire V, Némati F, Tesson B, Ye M, Rigaill G, Noizet M, Dumont A, Gentien D, Marty-Prouvost B, de Koning L, Mahmood SF, Decaudin D, Cruzalegui F, Tucker GC, Roman-Roman S, Dubois T. LRP5 regulates the expression of STK40, a new potential target in triple-negative breast cancers. Oncotarget 2018; 9:22586-22604. [PMID: 29854300 PMCID: PMC5978250 DOI: 10.18632/oncotarget.25187] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 04/04/2018] [Indexed: 12/21/2022] Open
Abstract
Triple-negative breast cancers (TNBCs) account for a large proportion of breast cancer deaths, due to the high rate of recurrence from residual, resistant tumor cells. New treatments are needed, to bypass chemoresistance and improve survival. The WNT pathway, which is activated in TNBCs, has been identified as an attractive pathway for treatment targeting. We analyzed expression of the WNT coreceptors LRP5 and LRP6 in human breast cancer samples. As previously described, LRP6 was overexpressed in TNBCs. However, we also showed, for the first time, that LRP5 was overexpressed in TNBCs too. The knockdown of LRP5 or LRP6 decreased tumorigenesis in vitro and in vivo, identifying both receptors as potential treatment targets in TNBC. The apoptotic effect of LRP5 knockdown was more robust than that of LRP6 depletion. We analyzed and compared the transcriptomes of cells depleted of LRP5 or LRP6, to identify genes specifically deregulated by LRP5 potentially implicated in cell death. We identified serine/threonine kinase 40 (STK40) as one of two genes specifically downregulated soon after LRP5 depletion. STK40 was found to be overexpressed in TNBCs, relative to other breast cancer subtypes, and in various other tumor types. STK40 depletion decreased cell viability and colony formation, and induced the apoptosis of TNBC cells. In addition, STK40 knockdown impaired growth in an anchorage-independent manner in vitro and slowed tumor growth in vivo. These findings identify the largely uncharacterized putative protein kinase STK40 as a novel candidate treatment target for TNBC.
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Affiliation(s)
- Sylvie Maubant
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Tania Tahtouh
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Amélie Brisson
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Virginie Maire
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Fariba Némati
- Institut Curie, PSL Research University, Translational Research Department, Preclinical Investigation Laboratory, Paris, France
| | - Bruno Tesson
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France.,Institut Curie, PSL Research University, INSERM U900, Paris, France
| | - Mengliang Ye
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Guillem Rigaill
- Institute of Plant Sciences Paris-Saclay (IPS2), UMR 9213/UMR 1403, CNRS, INRA, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, Orsay, France.,Laboratoire de Mathématiques et Modélisation d'Evry (LaMME), Université d'Evry Val d'Essonne, UMR CNRS 8071, ENSIIE, USC INRA, Évry, France
| | - Maïté Noizet
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Aurélie Dumont
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - David Gentien
- Institut Curie, PSL Research University, Translational Research Department, Genomics Platform, Paris, France
| | - Bérengère Marty-Prouvost
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Leanne de Koning
- Institut Curie, PSL Research University, Translational Research Department, Reverse-Phase Protein Array Platform, Paris, France
| | - Sardar Faisal Mahmood
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
| | - Didier Decaudin
- Institut Curie, PSL Research University, Translational Research Department, Preclinical Investigation Laboratory, Paris, France
| | - Francisco Cruzalegui
- Oncology Research and Development Unit, Institut de Recherches SERVIER, Croissy-Sur-Seine, France
| | - Gordon C Tucker
- Oncology Research and Development Unit, Institut de Recherches SERVIER, Croissy-Sur-Seine, France
| | - Sergio Roman-Roman
- Institut Curie, PSL Research University, Translational Research Department, Paris, France
| | - Thierry Dubois
- Institut Curie, PSL Research University, Translational Research Department, Breast Cancer Biology Group, Paris, France
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42
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Vázquez R, Riveiro ME, Astorgues-Xerri L, Odore E, Rezai K, Erba E, Panini N, Rinaldi A, Kwee I, Beltrame L, Bekradda M, Cvitkovic E, Bertoni F, Frapolli R, D'Incalci M. The bromodomain inhibitor OTX015 (MK-8628) exerts anti-tumor activity in triple-negative breast cancer models as single agent and in combination with everolimus. Oncotarget 2018; 8:7598-7613. [PMID: 27935867 PMCID: PMC5352346 DOI: 10.18632/oncotarget.13814] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 11/22/2016] [Indexed: 11/25/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive and heterogeneous subgroup of breast tumors clinically defined by the lack of estrogen, progesterone and HER2 receptors, limiting the use of the targeted therapies employed in other breast malignancies. Recent evidence indicates that c-MYC is a key driver of TNBC. The BET-bromodomain inhibitor OTX015 (MK-8628) has potent antiproliferative activity accompanied by c-MYC down-regulation in several tumor types, and has demonstrated synergism with the mTOR inhibitor everolimus in different models. The aim of this study was to evaluate the anti-tumor activity of OTX015 as single agent and in combination with everolimus in TNBC models. OTX015 was assayed in three human TNBC-derived cell lines, HCC1937, MDA-MB-231 and MDA-MB-468, all showing antiproliferative activity after 72 h (GI50 = 75–650 nM). This was accompanied by cell cycle arrest and decreased expression of cancer stem cells markers. However, c-MYC protein and mRNA levels were only down-regulated in MDA-MB-468 cells. Gene set enrichment analysis showed up-regulation of genes involved in epigenetic control of transcription, chromatin and the cell cycle, and down-regulation of stemness-related genes. In vitro, combination with everolimus was additive in HCC1937 and MDA-MB-231 cells, but antagonistic in MDA-MB-468 cells. In MDA-MB-231 murine xenografts, tumor mass was significantly (p < 0.05) reduced by OTX015 with respect to vehicle-treated animals (best T/C = 40.7%). Although everolimus alone was not active, the combination was more effective than OTX015 alone (best T/C = 20.7%). This work supports current clinical trials with OTX015 in TNBC (NCT02259114).
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Affiliation(s)
- Ramiro Vázquez
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | | | | | - Elodie Odore
- Oncology Therapeutic Development, Clichy, France.,Radiopharmacology Department, Curie Institute-René Huguenin Hospital, Saint Cloud, France
| | - Keyvan Rezai
- Radiopharmacology Department, Curie Institute-René Huguenin Hospital, Saint Cloud, France
| | - Eugenio Erba
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Nicolò Panini
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Andrea Rinaldi
- Institute of Oncology Research (IOR), Bellinzona, Switzerland
| | - Ivo Kwee
- Institute of Oncology Research (IOR), Bellinzona, Switzerland.,Dalle Molle Institute for Artificial Intelligence (IDSIA), Manno, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Luca Beltrame
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | | | - Esteban Cvitkovic
- Oncology Therapeutic Development, Clichy, France.,Oncoethix GmbH (formerly Oncoethix SA), Merck Sharp and Dohme Corp., Switzerland
| | - Francesco Bertoni
- Institute of Oncology Research (IOR), Bellinzona, Switzerland.,Oncology Institute of Southern Switzerland (IOSI), Bellinzona, Switzerland
| | - Roberta Frapolli
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Maurizio D'Incalci
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
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43
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Li H, Liu L, Chang H, Zou Z, Xing D. Downregulation of MCL-1 and upregulation of PUMA using mTOR inhibitors enhance antitumor efficacy of BH3 mimetics in triple-negative breast cancer. Cell Death Dis 2018; 9:137. [PMID: 29374168 PMCID: PMC5833778 DOI: 10.1038/s41419-017-0169-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 11/15/2017] [Accepted: 11/20/2017] [Indexed: 12/14/2022]
Abstract
Triple-negative breast cancer (TNBC) shows a higher malignant and poorer clinical outcome compared with other breast cancer subtypes. Albeit that chemotherapy is the first choice for TNBC treatment, rapid emergence of chemoresistance and variability of chemotherapeutic responses in TNBC patients call for novel therapeutic strategies. Here, we reported evidences highlighting that combination of BH3 mimetics and mTOR inhibitors could be a promising therapeutic strategy to improve TNBC treatment. Our results showed that combination of the BH3 mimetic ABT263 and typical mTOR inhibitors, BEZ235 or AZD8055, leads to efficient apoptosis in vitro. Tumor regression was significantly improved by combination therapy compared with either drug alone in the xenograft model. Further mechanistic investigations revealed that mTOR inhibitors induced the suppression of MCL-1; concomitantly, the expression level of PUMA was significantly upregulated in a FOXO3a-dependent manner. The specific changes of MCL-1 and PUMA facilitated the release of the apoptotic regulators, such as BIM, BAX, and BAK, to induce the activation of mitochondrial apoptotic pathway, thereby sensitizing the ABT263 activity in TNBC. Therefore, our findings provided evidences that mTOR inhibitors can enhance antitumor efficacy of BH3 mimetics via downregulating MCL-1 and upregulating PUMA in TNBC; it could be a promising therapeutic strategy to treat TNBC.
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Affiliation(s)
- Haolong Li
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, 510631, Guangzhou, China
- Joint Laboratory of Laser Oncology with Cancer Center of Sun Yat-sen University, South China Normal University, 510631, Guangzhou, China
| | - Lei Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, 510631, Guangzhou, China.
- Joint Laboratory of Laser Oncology with Cancer Center of Sun Yat-sen University, South China Normal University, 510631, Guangzhou, China.
| | - Haocai Chang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, 510631, Guangzhou, China
| | - Zhengzhi Zou
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, 510631, Guangzhou, China
- Joint Laboratory of Laser Oncology with Cancer Center of Sun Yat-sen University, South China Normal University, 510631, Guangzhou, China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, 510631, Guangzhou, China.
- Joint Laboratory of Laser Oncology with Cancer Center of Sun Yat-sen University, South China Normal University, 510631, Guangzhou, China.
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44
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Mayer IA, Dent R, Tan T, Savas P, Loi S. Novel Targeted Agents and Immunotherapy in Breast Cancer. Am Soc Clin Oncol Educ Book 2017; 37:65-75. [PMID: 28561712 DOI: 10.1200/edbk_175631] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The treatment of breast cancer is generally determined according to breast cancer subtype: hormone receptor-positive (luminal), triple-negative (basal-like), and HER2-overexpressing breast cancer. Recent years have seen the development of exciting novel and potent therapeutics based on molecular pathways, immune modulation, and antibody conjugates. In this article, we cover new and emerging therapeutic areas and ongoing clinical trials that may result in further improvements in breast cancer outcomes.
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Affiliation(s)
- Ingrid A Mayer
- From the Vanderbilt University Medical Center, Nashville, TN; Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Duke-NUS Medical School, Singapore, Singapore; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Rebecca Dent
- From the Vanderbilt University Medical Center, Nashville, TN; Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Duke-NUS Medical School, Singapore, Singapore; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Tira Tan
- From the Vanderbilt University Medical Center, Nashville, TN; Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Duke-NUS Medical School, Singapore, Singapore; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Peter Savas
- From the Vanderbilt University Medical Center, Nashville, TN; Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Duke-NUS Medical School, Singapore, Singapore; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Sherene Loi
- From the Vanderbilt University Medical Center, Nashville, TN; Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Duke-NUS Medical School, Singapore, Singapore; Peter MacCallum Cancer Centre, Melbourne, Australia
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45
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Lynch JT, Polanska UM, Delpuech O, Hancox U, Trinidad AG, Michopoulos F, Lenaghan C, McEwen R, Bradford J, Polanski R, Ellston R, Avivar-Valderas A, Pilling J, Staniszewska A, Cumberbatch M, Critchlow SE, Cruzalegui F, Barry ST. Inhibiting PI3Kβ with AZD8186 Regulates Key Metabolic Pathways in PTEN-Null Tumors. Clin Cancer Res 2017; 23:7584-7595. [DOI: 10.1158/1078-0432.ccr-17-0676] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 08/12/2017] [Accepted: 09/26/2017] [Indexed: 11/16/2022]
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46
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A Novel Statistical Method to Diagnose, Quantify and Correct Batch Effects in Genomic Studies. Sci Rep 2017; 7:10849. [PMID: 28883548 PMCID: PMC5589920 DOI: 10.1038/s41598-017-11110-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 08/18/2017] [Indexed: 01/01/2023] Open
Abstract
Genome projects now generate large-scale data often produced at various time points by different laboratories using multiple platforms. This increases the potential for batch effects. Currently there are several batch evaluation methods like principal component analysis (PCA; mostly based on visual inspection), and sometimes they fail to reveal all of the underlying batch effects. These methods can also lead to the risk of unintentionally correcting biologically interesting factors attributed to batch effects. Here we propose a novel statistical method, finding batch effect (findBATCH), to evaluate batch effect based on probabilistic principal component and covariates analysis (PPCCA). The same framework also provides a new approach to batch correction, correcting batch effect (correctBATCH), which we have shown to be a better approach to traditional PCA-based correction. We demonstrate the utility of these methods using two different examples (breast and colorectal cancers) by merging gene expression data from different studies after diagnosing and correcting for batch effects and retaining the biological effects. These methods, along with conventional visual inspection-based PCA, are available as a part of an R package exploring batch effect (exploBATCH; https://github.com/syspremed/exploBATCH).
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47
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Shao F, Sun H, Deng CX. Potential therapeutic targets of triple-negative breast cancer based on its intrinsic subtype. Oncotarget 2017; 8:73329-73344. [PMID: 29069872 PMCID: PMC5641215 DOI: 10.18632/oncotarget.20274] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/06/2017] [Indexed: 12/13/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive subgroup of human breast cancer, which is characterized as estrogen receptor (ER) negative, progesterone receptor (PR) negative, and human epidermal growth factor receptor 2 (HER2) negative. TNBC is the most difficult breast cancer subgroup to treat, due to its unresponsiveness to current clinical targeted therapies, high rate of recurrence, and poor prognosis. Thus, there is an urgent medical need to identify therapeutic targets and develop more effective stratified medicine for the treatment of TNBC. Here we review the potential therapeutic targets for TNBC based on its intrinsic subtype. We also review the aberrant activated signals found in different subgroups of TNBC, including androgen receptor (AR) and PI3K/AKT/mTOR, Notch, Wnt/β-catenin, Hedge-hog, and TGF-β signaling pathways, which play essential roles in multiple development stages of TNBC. The careful analysis of these signaling pathways and therapeutic targets would have significant impact on the drug development and clinical trials, leading to effective therapies for this deadly disease.
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Affiliation(s)
- Fangyuan Shao
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Heng Sun
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Chu-Xia Deng
- Faculty of Health Sciences, University of Macau, Macau SAR, China
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48
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Dey N, De P, Leyland-Jones B. PI3K-AKT-mTOR inhibitors in breast cancers: From tumor cell signaling to clinical trials. Pharmacol Ther 2017; 175:91-106. [DOI: 10.1016/j.pharmthera.2017.02.037] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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49
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Ocana A, Pandiella A. Targeting oncogenic vulnerabilities in triple negative breast cancer: biological bases and ongoing clinical studies. Oncotarget 2017; 8:22218-22234. [PMID: 28108739 PMCID: PMC5400659 DOI: 10.18632/oncotarget.14731] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 01/11/2017] [Indexed: 12/15/2022] Open
Abstract
Triple negative breast cancer (TNBC) is still an incurable disease despite the great scientific effort performed during the last years. The huge heterogeneity of this disease has motivated the evaluation of a great number of therapies against different molecular alterations. In this article, we review the biological bases of this entity and how the known molecular evidence supports the current preclinical and clinical development of new therapies. Special attention will be given to ongoing clinical studies and potential options for future drug combinations.
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Affiliation(s)
- Alberto Ocana
- Unidad de Investigación Traslacional, Hospital Universitario de Albacete, Universidad de Castilla La Mancha, Albacete, Spain
| | - Atanasio Pandiella
- Instituto de Biología Molecular y Celular del Cáncer and CIBERONC. CSIC-Universidad de Salamanca, Salamanca, Spain
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50
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Li X, Oprea-Ilies GM, Krishnamurti U. New Developments in Breast Cancer and Their Impact on Daily Practice in Pathology. Arch Pathol Lab Med 2017; 141:490-498. [DOI: 10.5858/arpa.2016-0288-sa] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Advances in research have transformed our understanding of breast cancers and have altered the daily practice of pathology. Theranostic evaluations performed by pathologists are now critical in triaging the patients into appropriate treatment groups, as are new guidelines that were recently established for the evaluation of HER2/neu gene amplification. Emerging molecular classifications of breast cancers bring novel perspectives to the assessment of individual cases, and opportunities for better treatments. Molecular studies have particularly shed light on distinct biological subsets of triple-negative breast cancers, for which new targeted therapies are being developed. The prognostic and therapeutic utility of new histopathologic parameters, such as tumor-infiltrating lymphocytes, are also being elucidated, and new protocols have been devised for the pathologic evaluation of breast specimens that have undergone neoadjuvant treatment. Novel clinical practices, such as radioactive seed localization, also affect the way breast specimens are processed and evaluated. In this brief review, we highlight the developments that are most relevant to pathology and are changing or could potentially impact our daily practice.
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Affiliation(s)
| | | | - Uma Krishnamurti
- From the Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Gerogia
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