1
|
Chen Y, Lu A, Hu Z, Li J, Lu J. ERBB3 targeting: A promising approach to overcoming cancer therapeutic resistance. Cancer Lett 2024; 599:217146. [PMID: 39098760 DOI: 10.1016/j.canlet.2024.217146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/21/2024] [Accepted: 07/29/2024] [Indexed: 08/06/2024]
Abstract
Human epidermal growth factor receptor-3 (ERBB3) is a member of the ERBB receptor tyrosine kinases (RTKs) and is expressed in many malignancies. Along with other ERBB receptors, ERBB3 is associated with regulating normal cell proliferation, apoptosis, differentiation, and survival, and has received increased research attention for its involvement in cancer therapies. ERBB3 expression or co-expression levels have been investigated as predictive factors for cancer prognosis and drug sensitivity. Additionally, the association between the elevated expression of ERBB3 and treatment failure in cancer therapy further established ERBB3-targeting therapy as a crucial therapeutic approach. This review delves into the molecular mechanisms of ERBB3-driven resistance to targeted therapeutics against ERBB2 and EGFR and other signal transduction inhibitors, endocrine therapy, chemotherapy, and radiotherapy. Using preclinical and clinical evidence, we synthesise and explicate how various aspects of aberrant ERBB3 activities-such as compensatory activation, signal crosstalk interactions, dysregulation in the endocytic pathway, mutations, ligand-independent activation, intrinsic kinase activity, and homodimerisation-can lead to resistance development and/or treatment failures. Several ERBB3-directed monoclonal antibodies, bispecific antibodies, and the emerging antibody-drug conjugate demonstrate encouraging clinical outcomes for improving therapeutic efficacy and overcoming resistance, especially when combined with other anti-cancer approaches. More research efforts are needed to identify appropriate biomarkers tailored for ERBB3-targeted therapies.
Collapse
Affiliation(s)
- Yutao Chen
- Auckland Bioengineering Institute, University of Auckland, Auckland, 1142, New Zealand
| | - Anni Lu
- Pinehurst School, Albany, Auckland, New Zealand
| | - Zhangli Hu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Jinyao Li
- College of Life Sciences, Xijiang University, Urumqi, China
| | - Jun Lu
- Auckland Bioengineering Institute, University of Auckland, Auckland, 1142, New Zealand; College of Food Engineering and Nutrition Sciences, Shaanxi Normal University, Xi'an, 710119, Shaanxi Province, China; College of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi Province, China; Department of Food and Agriculture Technology, Yangtze Delta Region Institute of Tsinghua University, Zhejiang, Jiaxing, 314006, China.
| |
Collapse
|
2
|
Augustin RC, Newman S, Li A, Joy M, Lyons M, Pham MP, Lucas P, Smith K, Sander C, Isett B, Davar D, Najjar YG, Zarour HM, Kirkwood JM, Luke JJ, Bao R. Identification of tumor-intrinsic drivers of immune exclusion in acral melanoma. J Immunother Cancer 2023; 11:e007567. [PMID: 37857525 PMCID: PMC10603348 DOI: 10.1136/jitc-2023-007567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2023] [Indexed: 10/21/2023] Open
Abstract
Acral melanoma (AM) has distinct characteristics as compared with cutaneous melanoma and exhibits poor response to immune checkpoint inhibitors (ICIs). Tumor-intrinsic mechanisms of immune exclusion have been identified in many cancers but less studied in AM. We characterized clinically annotated tumors from patients diagnosed with AM at our institution in correlation with ICI response using whole transcriptome RNAseq, whole exome sequencing, CD8 immunohistochemistry, and multispectral immunofluorescence imaging. A defined interferon-γ-associated T cell-inflamed gene signature was used to categorize tumors into non-T cell-inflamed and T cell-inflamed phenotypes. In combination with AM tumors from two published studies, we systematically assessed the immune landscape of AM and detected differential gene expression and pathway activation in a non-T cell-inflamed tumor microenvironment (TME). Two single-cell(sc) RNAseq AM cohorts and 11 bulk RNAseq cohorts of various tumor types were used for independent validation on pathways associated with lack of ICI response. In total, 892 specimens were included in this study. 72.5% of AM tumors showed low expression of the T cell-inflamed gene signature, with 23.9% of total tumors categorized as the non-T cell-inflamed phenotype. Patients of low CD3+CD8+PD1+ intratumoral T cell density showed poor prognosis. We identified 11 oncogenic pathways significantly upregulated in non-T cell-inflamed relative to T cell-inflamed TME shared across all three acral cohorts (MYC, HGF, MITF, VEGF, EGFR, SP1, ERBB2, TFEB, SREBF1, SOX2, and CCND1). scRNAseq analysis revealed that tumor cell-expressing pathway scores were significantly higher in low versus high T cell-infiltrated AM tumors. We further demonstrated that the 11 pathways were enriched in ICI non-responders compared with responders across cancers, including AM, cutaneous melanoma, triple-negative breast cancer, and non-small cell lung cancer. Pathway activation was associated with low expression of interferon stimulated genes, suggesting suppression of antigen presentation. Across the 11 pathways, fatty acid synthase and CXCL8 were unifying downstream target molecules suggesting potential nodes for therapeutic intervention. A unique set of pathways is associated with immune exclusion and ICI resistance in AM. These data may inform immunotherapy combinations for immediate clinical translation.
Collapse
Affiliation(s)
- Ryan C Augustin
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Sarah Newman
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Aofei Li
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Marion Joy
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Maureen Lyons
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Mary P Pham
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Peter Lucas
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Katelyn Smith
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Cindy Sander
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Brian Isett
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Diwakar Davar
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yana G Najjar
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Hassane M Zarour
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John M Kirkwood
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jason John Luke
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Riyue Bao
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| |
Collapse
|
3
|
Augustin RC, Newman S, Li A, Joy M, Lyons M, Pham M, Lucas PC, Smith K, Sander C, Isett B, Davar D, Najjar YG, Zarour HM, Kirkwood JM, Luke JJ, Bao R. Identification of tumor-intrinsic drivers of immune exclusion in acral melanoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.24.554717. [PMID: 37662409 PMCID: PMC10473736 DOI: 10.1101/2023.08.24.554717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Background Acral melanoma (AM) has distinct characteristics as compared to cutaneous melanoma and exhibits poor response to immune checkpoint inhibitors (ICI). Tumor-intrinsic mechanisms of immune exclusion have been identified in many cancers but less studied in AM. Methods We characterized clinically annotated tumors from patients diagnosed with AM at our institution in correlation with ICI response using whole transcriptome RNAseq, whole exome sequencing, CD8 immunohistochemistry, and multispectral immunofluorescence imaging. A defined interferon-γ-associated T cell-inflamed gene signature was used to categorize tumors into non-T cell-inflamed and T cell-inflamed phenotypes. In combination with AM tumors from two published studies, we systematically assessed the immune landscape of AM and detected differential gene expression and pathway activation in a non-T cell-inflamed tumor microenvironment (TME). Two single-cell(sc) RNAseq AM cohorts and 11 bulk RNAseq cohorts of various tumor types were used for independent validation on pathways associated with lack of ICI response. In total, 892 specimens were included in this study. Results 72.5% of AM tumors showed low expression of the T cell-inflamed gene signature, with 23.9% of total tumors categorized as the non-T cell-inflamed phenotype. Patients of low CD3 + CD8 + PD1 + intratumoral T cell density showed poor prognosis. We identified 11 oncogenic pathways significantly upregulated in non-T cell-inflamed relative to T cell-inflamed TME shared across all three acral cohorts (MYC, HGF, MITF, VEGF, EGFR, SP1, ERBB2, TFEB, SREBF1, SOX2, and CCND1). scRNAseq analysis revealed that tumor cell-expressing pathway scores were significantly higher in low vs high T cell-infiltrated AM tumors. We further demonstrated that the 11 pathways were enriched in ICI non-responders compared to responders across cancers, including acral melanoma, cutaneous melanoma, triple-negative breast cancer, and non-small cell lung cancer. Pathway activation was associated with low expression of interferon stimulated genes, suggesting suppression of antigen presentation. Across the 11 pathways, fatty acid synthase and CXCL8 were unifying downstream target molecules suggesting potential nodes for therapeutic intervention. Conclusions A unique set of pathways is associated with immune exclusion and ICI resistance in AM. These data may inform immunotherapy combinations for immediate clinical translation.
Collapse
|
4
|
Hang B, Jassem E, Mohammed H, Wan LQ, Herschkowitz JI, Fan J. Interacting with tumor cells weakens the intrinsic clockwise chirality of endothelial cells. APL Bioeng 2022; 6:046107. [PMID: 36505506 PMCID: PMC9729015 DOI: 10.1063/5.0115827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/14/2022] [Indexed: 12/12/2022] Open
Abstract
Endothelial cells (ECs) possess a strong intrinsic clockwise (CW, or rightward) chirality under normal conditions. Enervating this chirality of ECs significantly impairs the function of the endothelial barrier. Malignant tumor cells (TCs) undergo metastasis by playing upon the abnormal leakage of blood vessels. However, the impact of TCs on EC chirality is still poorly understood. Using a transwell model, we co-cultured the human umbilical vein endothelial cells or human lung microvascular endothelial cells and breast epithelial tumor cell lines to simulate the TC-EC interaction. Using a micropatterning method, we assessed the EC chirality changes induced by paracrine signaling of and physical contact with TCs. We found that the intrinsic clockwise chirality of ECs was significantly compromised by the TC's physical contact, while the paracrine signaling (i.e., without physical contact) of TCs causes minimal changes. In addition, ECs neighboring TCs tend to possess a left bias, while ECs spaced apart from TCs are more likely to preserve the intrinsic right bias. Finally, we found the chirality change of ECs could result from physical binding between CD44 and E-selectin, which activates protein kinase C alpha (PKCα) and induces pseudopodial movement of EC toward TC. Our findings together suggest the crucial role of EC-TC physical interaction in EC chirality and that weakening the EC chirality could potentially compromise the overall endothelial integrity which increases the probability of metastatic cancer spread.
Collapse
Affiliation(s)
- Benson Hang
- Department of Natural Sciences, CASL, University of Michigan-Dearborn, Dearborn, Michigan 48128, USA
| | - Eman Jassem
- Department of Natural Sciences, CASL, University of Michigan-Dearborn, Dearborn, Michigan 48128, USA
| | - Hanan Mohammed
- Department of Natural Sciences, CASL, University of Michigan-Dearborn, Dearborn, Michigan 48128, USA
| | | | - Jason I. Herschkowitz
- Department of Biomedical Sciences, Cancer Research Center, University at Albany-SUNY, Rensselaer, New York 12144, USA
| | - Jie Fan
- Department of Natural Sciences, CASL, University of Michigan-Dearborn, Dearborn, Michigan 48128, USA,Author to whom correspondence should be addressed:
| |
Collapse
|
5
|
Amante RJ, Auf der Maur P, Richina V, Sethi A, Iesmantavicius V, Bonenfant D, Aceto N, Bentires-Alj M. Protein Tyrosine Phosphatase SHP2 Controls Interleukin-8 Expression in Breast Cancer Cells. J Mammary Gland Biol Neoplasia 2022; 27:145-153. [PMID: 35739379 PMCID: PMC9433352 DOI: 10.1007/s10911-022-09521-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 05/29/2022] [Indexed: 11/16/2022] Open
Abstract
Treatment of metastasis remains a clinical challenge and the majority of breast cancer-related deaths are the result of drug-resistant metastases. The protein tyrosine phosphatase SHP2 encoded by the proto-oncogene PTPN11 promotes breast cancer progression. Inhibition of SHP2 has been shown to decrease metastases formation in various breast cancer models, but specific downstream effectors of SHP2 remain poorly characterized. Certain cytokines in the metastatic cascade facilitate local invasion and promote metastatic colonization. In this study, we investigated cytokines affected by SHP2 that could be relevant for its pro-tumorigenic properties. We used a cytokine array to investigate differentially released cytokines in the supernatant of SHP2 inhibitor-treated breast cancer cells. Expression of CXCL8 transcripts and protein abundance were assessed in human breast cancer cell lines in which we blocked SHP2 using shRNA constructs or an allosteric inhibitor. The impact of SHP2 inhibition on the phospho-tyrosine-proteome and signaling was determined using mass spectrometry. From previously published RNAseq data (Aceto et al. in Nat. Med. 18:529-37, 2012), we computed transcription factor activities using an integrated system for motif activity response analysis (ISMARA) (Balwierz et al. in Genome Res. 24:869-84, 2014). Finally, using siRNA against ETS1, we investigated whether ETS1 directly influences CXCL8 expression levels. We found that IL-8 is one of the most downregulated cytokines in cell supernatants upon SHP2 blockade, with a twofold decrease in CXCL8 transcripts and a fourfold decrease in IL-8 protein. These effects were also observed in preclinical tumor models. Analysis of the phospho-tyrosine-proteome revealed that several effectors of the mitogen-activated protein kinase (MAPK) pathway are downregulated upon SHP2 inhibition in vitro. MEK1/2 inhibition consistently reduced IL-8 levels in breast cancer cell supernatants. Computational analysis of RNAseq data from SHP2-depleted tumors revealed reduced activity of the transcription factor ETS1, a direct target of ERK and a transcription factor reported to regulate IL-8 expression. Our work reveals that SHP2 mediates breast cancer progression by enhancing the production and secretion of the pro-metastatic cytokine IL-8. We also provide mechanistic insights into the effects of SHP2 inhibition and its downstream repercussions. Overall, these results support a rationale for targeting SHP2 in breast cancer.
Collapse
Affiliation(s)
- Romain J Amante
- Department of Biomedicine, University of Basel, University Hospital Basel, Basel, Switzerland
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | - Priska Auf der Maur
- Department of Biomedicine, University of Basel, University Hospital Basel, Basel, Switzerland
| | - Veronica Richina
- Department of Biomedicine, University of Basel, University Hospital Basel, Basel, Switzerland
| | - Atul Sethi
- Department of Biomedicine, University of Basel, University Hospital Basel, Basel, Switzerland
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | | | - Debora Bonenfant
- Analytical Sciences and Imaging, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Nicola Aceto
- Department of Biology, Institute of Molecular Health Sciences, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland
| | - Mohamed Bentires-Alj
- Department of Biomedicine, University of Basel, University Hospital Basel, Basel, Switzerland.
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland.
| |
Collapse
|
6
|
NRG1/ERBB3/ERBB2 Axis Triggers Anchorage-Independent Growth of Basal-like/Triple-Negative Breast Cancer Cells. Cancers (Basel) 2022; 14:cancers14071603. [PMID: 35406375 PMCID: PMC8997077 DOI: 10.3390/cancers14071603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/09/2022] [Accepted: 03/16/2022] [Indexed: 01/12/2023] Open
Abstract
Simple Summary Breast cancer is a heterogeneous disease, categorized into distinct subgroups with different clinical prognoses and treatment strategies. This study aimed to evaluate the role of ERBB3 in different molecular subtypes of breast cancers. Despite ERBB3/HER3 and its partner ERBB2/HER2 showing low expression levels in basal-like/triple-negative breast cancers, stratification of basal-like patients according to ERBB3 mRNA expression levels highlighted a correlation between higher ERBB3 levels and shorter relapse-free patients’ survival. In vitro analyses unveiled that the activation of the NRG1/ERBB3/ERBB2 axis robustly induces anchorage-independent growth of basal-like/triple-negative breast cancer cellular models, without significant effects on cell proliferation, differentiation, and migration in adhesion. Overall, our data suggest that ERBB2/ERBB3 plays an oncogenic role in basal-like/triple-negative breast cancer patients, suggesting its neutralization as a therapeutic strategy for these breast cancer subtypes, which today have very limited treatment opportunities. Abstract ERBB3, also known as HER3, is a tyrosine kinase transmembrane receptor of the ERBB family. Upon binding to neuregulin 1 (NRG1), ERBB3 preferentially dimerizes with HER2 (ERBB2), in turn inducing aggressive features in several cancer types. The analysis of a dataset of breast cancer patients unveiled that higher ERBB3 mRNA expression correlates with shorter relapse-free survival in basal-like breast cancers, despite low ERBB3 expression in this breast cancer subtype. Administration of neuregulin 1 beta (NRG1β) significantly affected neither cellular proliferation nor the basal migratory ability of basal-like/triple-negative quasi-normal MCF10A breast cells, cultured in mono-layer conditions. Furthermore, no significant regulation in cell morphology or in the expression of basal/myoepithelial and luminal markers was observed upon stimulation with NRG1β. In non-adherent conditions, NRG1β administration to MCF10A cells did not significantly influence cell survival; however, it robustly induced cell growth as spheroids (3D growth). Intriguingly, a remarkable upregulation of ERBB3 and ERBB2 protein abundance was observed in 3D compared to 2D cell cultures, and NRG1β-induced 3D cell growth was efficiently prevented by the anti-HER2 monoclonal antibody pertuzumab. Similar results were obtained by the analysis of basal-like/triple-negative breast cancer cellular models, MDA-MB-468 and MDA-MB-231 cells, in which NRG1β induced anchorage-independent cell growth that in turn was prevented or reduced by the simultaneous administration of anti-HER2 neutralizing antibodies. Finally, the ability of pertuzumab in suppressing NRG1β-induced 3D growth was also evaluated and confirmed in MCF10A engineered with HER2-overexpression. We suggest that the NRG1/ERBB3/ERBB2 pathway promotes the anchorage-independent growth of basal-like breast cancer cells. Importantly, we provide evidence that ERBB2 neutralization, in particular by pertuzumab, robustly inhibits this process. Our results pave the way towards the development of novel anticancer strategies for basal-like breast cancer patients based on the interception of the NRG1/ERBB3/ERBB2 signaling axis.
Collapse
|
7
|
Naismith K, Cox B. Human placental gene sets improve analysis of placental pathologies and link trophoblast and cancer invasion genes. Placenta 2021; 112:9-15. [PMID: 34237528 DOI: 10.1016/j.placenta.2021.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/23/2021] [Accepted: 06/15/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Interpretation of gene expression uses set enrichment or overrepresentation methods that depend on sets of annotated genes, such as the popular Gene Ontology. The placenta is understudied relative to other major organs creating a deficit of molecular and functional knowledge about this organ. The lack of placental and trophoblast research significantly impacts our ability to interpret the results of high throughput experiments. METHODS Gene sets were generated by a semi-automated re-analysis of 330 microarray and 91 RNA sequencing experiments involving placental and trophoblast samples, excluding those related to pathology. Microarray data was obtained from the Gene Expression Omnibus and processed using the R package limma. RNA-sequencing data was extracted from the short read archive and processed using Kallisto and limma. The workflow consisted of quality control for experimental design and data. Sets were generated by pairwise differential expression with a maximum of 200 genes per set. RESULTS We created 235 human placenta and trophoblast specific gene sets and found unique subnetworks relative to Gene Ontology. We applied these new placental gene sets to the investigation of preeclampsia and fetal growth restriction as well as invasive tumors and cell models finding matching terms related to cell types and oxygen tension (hypoxia). DISCUSSION The human placental gene sets provide an improved context for interpretation of high throughput gene expression studies on placental pathologies beyond the Gene Ontology. Significant enrichment of placental gene sets to cancer samples and cell models indicates a utility beyond applications to placental and trophoblast cells.
Collapse
Affiliation(s)
- Kendra Naismith
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Brian Cox
- Department of Physiology, University of Toronto, Toronto, Canada; Department of Obstetrics and Gynecology, University of Toronto, Toronto, Canada.
| |
Collapse
|
8
|
Ahmed S, Mohamed HT, El-Husseiny N, El Mahdy MM, Safwat G, Diab AA, El-Sherif AA, El-Shinawi M, Mohamed MM. IL-8 secreted by tumor associated macrophages contribute to lapatinib resistance in HER2-positive locally advanced breast cancer via activation of Src/STAT3/ERK1/2-mediated EGFR signaling. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:118995. [PMID: 33667527 DOI: 10.1016/j.bbamcr.2021.118995] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 12/11/2022]
Abstract
Locally advanced breast cancer (LABC) is an aggressive disease characterized by late clinical presentation, large tumor size, treatment resistance and low survival rate. Expression of EGFR/HER2 and activation of intracellular tyrosine kinase domains in LABC are associated with poor prognosis. Thus, target therapies such as the anti-receptor tyrosine kinases lapatinib drug have been more developed in the past decade. The response to lapatinib involves the inhibition of RTKs and subsequently signaling molecules such as Src/STAT3/Erk1/2 known also to be activated by the cytokines in the tumor microenvironment (TME). The aim of the present study is to identify the major cytokine that might contribute to lapatinib resistance in EGFR+/HER2+ LABC patients. Indeed, tumor associated macrophages (TAMs) are the main source of cytokines in the TME. Herein, we isolated TAMs from LABC during modified radical mastectomy (MRM). Cytokine profile of TAMs revealed that IL-8 is the most prominent highly secreted cytokine by TAMs of LABC patients. Using in-vitro cell culture model we showed that recombinant IL-8 (50 and 100 ng/mL) at different time intervals interfere with lapatinib action via activation of Src/EGFR and signaling molecules known to be inhibited during treatment. We proposed that to improve LABC patients' response to lapatinib treatment it is preferred to use combined therapy that neutralize or block the action of IL-8.
Collapse
Affiliation(s)
- Shaza Ahmed
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt; Faculty of Biotechnology, October University for Modern Sciences and Arts, Giza 12451, Egypt
| | - Hossam Taha Mohamed
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt; Faculty of Biotechnology, October University for Modern Sciences and Arts, Giza 12451, Egypt
| | - Noura El-Husseiny
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Manal M El Mahdy
- Department of Pathology, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt
| | - Gehan Safwat
- Faculty of Biotechnology, October University for Modern Sciences and Arts, Giza 12451, Egypt
| | - Ayman A Diab
- Faculty of Biotechnology, October University for Modern Sciences and Arts, Giza 12451, Egypt
| | - Ahmed A El-Sherif
- Chemistry department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Mohamed El-Shinawi
- Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt; Vice President for International Affairs, Galala University, Suez 43511, Egypt
| | - Mona Mostafa Mohamed
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt; Director of Biotechnology program, Faculty of Science, Galala University, 43511 Suez, Egypt.
| |
Collapse
|
9
|
Zhou Q, Jin P, Liu J, Li S, Liu W, Xi S. HER2 overexpression triggers the IL-8 to promote arsenic-induced EMT and stem cell-like phenotypes in human bladder epithelial cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111693. [PMID: 33396024 DOI: 10.1016/j.ecoenv.2020.111693] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Arsenic is a natural chemical element that is strongly associated with bladder cancer. Understanding the underlying mechanisms behind the association between arsenic and bladder cancer as well as identifying effective preventive interventions will help reduce the incidence and mortality of this disease. The epithelial-mesenchymal transition (EMT) and cancer stem cell (CSC) properties play key roles in cancer development and progression. Here, we reported that chronic exposure to arsenic resulted in EMT and increased levels of the CSC marker CD44 in human uroepithelial cells. Furthermore, IL-8 promoted a mesenchymal phenotype and upregulated CD44 by activating the ERK, AKT and STAT3 signaling. Phosphorylation of the human epidermal growth factor receptor 2 (HER2) was key for arsenic-induced IL-8 overexpression and depended on the simultaneous activation of the MAPK, JNK, PI3K/AKT and GSK3β signaling pathways. We also found that genistein inhibited arsenic-induced HER2 phosphorylation and downregulated its downstream signaling pathways, thereby inhibiting progression of EMT, and reducing CD44 expression levels. These results demonstrate that the HER2/IL-8 axis is related to the acquisition of an EMT phenotype and CSCs in arsenic-treated cells. The inhibitory effects of genistein on EMT and CSCs provide a new perspective for the intervention and potential chemotherapy against arsenic-induced bladder cancer.
Collapse
Affiliation(s)
- Qing Zhou
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning, PR China.
| | - Peiyu Jin
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning, PR China.
| | - Jieyu Liu
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning, PR China.
| | - Sihao Li
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning, PR China.
| | - Weijue Liu
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning, PR China.
| | - Shuhua Xi
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning, PR China.
| |
Collapse
|
10
|
Heregulin Drives Endocrine Resistance by Altering IL-8 Expression in ER-Positive Breast Cancer. Int J Mol Sci 2020; 21:ijms21207737. [PMID: 33086721 PMCID: PMC7589856 DOI: 10.3390/ijms21207737] [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: 09/28/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 02/04/2023] Open
Abstract
Sustained HER2/HER3 signaling due to the overproduction of the HER3 ligand heregulin (HRG) is proposed as a key contributor to endocrine resistance in estrogen receptor-positive (ER+) breast cancer. The molecular mechanisms linking HER2 transactivation by HRG-bound HER3 to the acquisition of a hormone-independent phenotype in ER+ breast cancer is, however, largely unknown. Here, we explored the possibility that autocrine HRG signaling drives cytokine-related endocrine resistance in ER+ breast cancer cells. We used human cytokine antibody arrays to semi-quantitatively measure the expression level of 60 cytokines and growth factors in the extracellular milieu of MCF-7 cells engineered to overexpress full-length HRGβ2 (MCF-7/HRG cells). Interleukin-8 (IL-8), a chemokine closely linked to ER inaction, emerged as one the most differentially expressed cytokines. Cytokine profiling using structural deletion mutants lacking both the N-terminus and the cytoplasmic-transmembrane region of HRGβ2-which is not secreted and cannot transactivate HER2-or lacking a nuclear localization signal at the N-terminus-which cannot localize at the nucleus but is actively secreted and transactivates HER2-revealed that the HRG-driven activation of IL-8 expression in ER+ cells required HRG secretion and transactivation of HER2 but not HRG nuclear localization. The functional blockade of IL-8 with a specific antibody inversely regulated ERα-driven transcriptional activation in endocrine-sensitive MCF-7 cells and endocrine-resistant MCF-7/HRG cells. Overall, these findings suggest that IL-8 participates in the HRG-driven endocrine resistance program in ER+/HER2- breast cancer and might illuminate a potential clinical setting for IL8- or CXCR1/2-neutralizing antibodies.
Collapse
|
11
|
Nazari M, Zamani Koukhaloo S, Mousavi S, Minai‐Tehrani A, Emamzadeh R, Cheraghi R. Development of a ZHER3‐Affibody‐Targeted Nano‐Vector for Gene Delivery to HER3‐Overexpressed Breast Cancer Cells. Macromol Biosci 2019; 19:e1900159. [DOI: 10.1002/mabi.201900159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 08/14/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Mahboobeh Nazari
- Monoclonal Antibody Research CenterAvicenna Research InstituteACECR Tehran 1936773493 Iran
| | | | - Samira Mousavi
- Monoclonal Antibody Research CenterAvicenna Research InstituteACECR Tehran 1936773493 Iran
| | - Arash Minai‐Tehrani
- Nanobiotechnology Research CenterAvicenna Research InstituteACECR Tehran 1936773493 Iran
| | - Rahman Emamzadeh
- Department of BiologyFaculty of SciencesUniversity of Isfahan Isfahan 8174673441 Iran
| | - Roya Cheraghi
- Department of NanobiotechnologyFaculty of Biological SciencesTarbiat Modares University Tehran 111‐14115 Iran
| |
Collapse
|
12
|
Maisel SA, Broka D, Atwell B, Bunch T, Kupp R, Singh SK, Mehta S, Schroeder J. Stapled EGFR peptide reduces inflammatory breast cancer and inhibits additional HER-driven models of cancer. J Transl Med 2019; 17:201. [PMID: 31215437 PMCID: PMC6582486 DOI: 10.1186/s12967-019-1939-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 05/25/2019] [Indexed: 12/14/2022] Open
Abstract
Background The human epidermal growth factor receptor (HER) family of transmembrane tyrosine kinases is overexpressed and correlates with poor prognosis and decreased survival in many cancers. The receptor family has been therapeutically targeted, yet tyrosine kinase inhibitors (TKIs) do not inhibit kinase-independent functions and antibody-based targeting does not affect internalized receptors. We have previously demonstrated that a peptide mimicking the internal juxtamembrane domain of HER1 (EGFR; EJ1) promotes the formation of non-functional HER dimers that inhibit kinase-dependent and kinase-independent functions of HER1 (ERBB1/EGFR), HER2 (ERBB2) and HER3 (ERBB3). Despite inducing rapid HER-dependent cell death in vitro, EJ1 peptides are rapidly cleared in vivo, limiting their efficacy. Method To stabilize EJ1 activity, hydrocarbon staples (SAH) were added to the active peptide (SAH-EJ1), resulting in a 7.2-fold increase in efficacy and decreased in vivo clearance. Viability assays were performed across HER1 and HER2 expressing cell lines, therapeutic-resistant breast cancer cells, clinically relevant HER1-mutated lung cancer cells, and patient-derived glioblastoma cells, in all cases demonstrating improved efficacy over standard of care pan-HER therapeutics. Tumor burden studies were also performed in lung, glioblastoma, and inflammatory breast cancer mouse models, evaluating tumor growth and overall survival. Results When injected into mouse models of basal-like and inflammatory breast cancers, EGFRvIII-driven glioblastoma, and lung adenocarcinoma with Erlotinib resistance, tumor growth is inhibited and overall survival is extended. Studies evaluating the toxicity of SAH-EJ1 also demonstrate a broad therapeutic window. Conclusions Taken together, these data indicate that SAH-EJ1 may be an effective therapeutic for HER-driven cancers with the potential to eliminate triple negative inflammatory breast cancer. Electronic supplementary material The online version of this article (10.1186/s12967-019-1939-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Sabrina A Maisel
- Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ, USA
| | - Derrick Broka
- Arizona Cancer Therapeutics/Alliance Therapeutics, Tucson, AZ, USA
| | - Benjamin Atwell
- Arizona Cancer Center, University of Arizona, 1515 N Campbell Ave 3945, Tucson, AZ, 85724, USA.,Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ, USA
| | - Thomas Bunch
- Arizona Cancer Therapeutics/Alliance Therapeutics, Tucson, AZ, USA
| | - Robert Kupp
- Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
| | - Shiv K Singh
- Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
| | - Shwetal Mehta
- Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
| | - Joyce Schroeder
- Arizona Cancer Center, University of Arizona, 1515 N Campbell Ave 3945, Tucson, AZ, 85724, USA. .,Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ, USA. .,Arizona Cancer Therapeutics/Alliance Therapeutics, Tucson, AZ, USA.
| |
Collapse
|
13
|
Interleukin-6 and interleukin-8 serum levels in prognosis of hormone-dependent breast cancer. Cytokine 2019; 118:93-98. [DOI: 10.1016/j.cyto.2018.02.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/08/2018] [Accepted: 02/18/2018] [Indexed: 12/22/2022]
|
14
|
Nushtaeva AA, Karpushina AA, Ermakov MS, Gulyaeva LF, Gerasimov AV, Sidorov SV, Gayner TA, Yunusova AY, Tkachenko AV, Richter VA, Koval OA. Establishment of primary human breast cancer cell lines using "pulsed hypoxia" method and development of metastatic tumor model in immunodeficient mice. Cancer Cell Int 2019; 19:46. [PMID: 30858763 PMCID: PMC6394017 DOI: 10.1186/s12935-019-0766-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/21/2019] [Indexed: 12/14/2022] Open
Abstract
Background Among breast cancer (BC) patients the outcomes of anticancer therapy vary dramatically due to the highly heterogeneous molecular characteristics of BC. Therefore, an extended panel of BC cell lines are required for in vitro and in vivo studies to find out new characteristic of carcinogenesis and metastasis. The purpose of this study was to develop patient-derived BC cell cultures and metastatic tumor models representing a tool for personal therapy and translational research. Methods Breast cancer cells were prepared by optimizing technique from tumor samples. We used real-time RT-PCR, flow cytometry, western blotting, cytotoxicity assay, karyotyping and fluorescent and electron microscopy analyses to characterize the established cell lines. BC xenografts in scid mice were used for in vivo tumorigenicity studies. Results The technique of preparing primary cells was optimized and this resulted in a high output of viable and active proliferated cells of nine patient-derived breast cancer cell lines and one breast non-malignant cell line. High E-cadherine and EpCAM expression correlated positively with epithelial phenotype while high expression of N-cadherine and Vimentin were shown in cells with mesenchymal phenotype. All mesenchymal-like cell lines were high HER3-positive—up to 90%. More interesting than that, is that two cell lines under specific culturing conditions (pulsed hypoxia and conditioned media) progressively transformed from mesenchymal to epithelial phenotypes displaying the expression of respective molecular markers proving that the mesenchymal-to-epithelial transition occurred. Becoming epithelial, these cells have lost HER3 and decreased HER2 membrane receptors. Three of the established epithelial cancer cell lines were tumorigenic in SCID mice and the generated tumors exhibited lobules-like structures. Ultrastructure analysis revealed low-differentiate phenotype of tumorigenic cell lines. These cells were in near-triploid range with multiple chromosome rearrangements. Tumorigenic BrCCh4e cells, originated from the patient of four-course chemotherapy, initiated metastasis when they were grafted subcutaneous with colonization of mediastinum lymph nodes. Conclusions The developed BC cells metastasizing to mediastinum lymph nodes are a relevant model for downstream applications. Moreover, our findings demonstrate that pulsed hypoxia induces transformation of primary fibroblastoid breast cancer cells to epithelial-like cells and both of these cultures—induced and original—don’t show tumor initiating capacity. Electronic supplementary material The online version of this article (10.1186/s12935-019-0766-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Anna A Nushtaeva
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, Novosibirsk, 630090 Russia
| | - Anastasia A Karpushina
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, Novosibirsk, 630090 Russia
| | - Mikhail S Ermakov
- 2Novosibirsk State University, Pirogova Str. 1, Novosibirsk, 630090 Russia
| | - Ludmila F Gulyaeva
- 2Novosibirsk State University, Pirogova Str. 1, Novosibirsk, 630090 Russia.,3Institute of Molecular Biology and Biophysics, Siberian Branch, Russian Academy of Medical Sciences, Ac. Timakov Str. 2, Novosibirsk, 630117 Russia
| | - Alexey V Gerasimov
- National Novosibirsk Regional Oncology Dispensary, Plakhotnogo Str. 2, Novosibirsk, 630000 Russia
| | - Sergey V Sidorov
- Novosibirsk Municipal Budgetary Healthcare Institution "Municipal Clinical Hospital #1", Zalessky Str. 6, Novosibirsk, 630047 Russia
| | - Tatyana A Gayner
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, Novosibirsk, 630090 Russia
| | - Anastasia Y Yunusova
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, Novosibirsk, 630090 Russia
| | - Anastasia V Tkachenko
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, Novosibirsk, 630090 Russia
| | - Vladimir A Richter
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, Novosibirsk, 630090 Russia
| | - Olga A Koval
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, Novosibirsk, 630090 Russia.,2Novosibirsk State University, Pirogova Str. 1, Novosibirsk, 630090 Russia
| |
Collapse
|
15
|
Lamarca A, Galdy S, Barriuso J, Moghadam S, Beckett E, Rogan J, Backen A, Billington C, McNamara MG, Hubner RA, Cramer A, Valle JW. The HER3 pathway as a potential target for inhibition in patients with biliary tract cancers. PLoS One 2018; 13:e0206007. [PMID: 30335866 PMCID: PMC6193702 DOI: 10.1371/journal.pone.0206007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/04/2018] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Expression of human epidermal growth factor receptor (HER)2 and HER3 have been investigated in small BTC studies using variable scoring systems. METHODS HER2 and HER3 overexpression/amplification were explored following internationally agreed guidelines using immunohistochemistry (IHC) and fluorescent in-situ hybridisation (FISH), respectively. Logistic regression and survival analysis (Kaplan Meier, Log rank test and Cox Regression) were used for statistical analysis. RESULTS Sixty-seven eligible patients with Stage I/II (31.3%) or III/IV (68.7%) disease at diagnosis were included. Membrane HER2 overexpression/amplification was identified in 1 patient (1%). HER3 overexpression was predominantly cytoplasmic; the rate of overexpression/amplification of HER3 in membrane and cytoplasm was 16% [ampullary cancer (AMP) (1/13; 8%), gallbladder cancer (GBC) (1/10; 10%), intra-hepatic cholangiocarcinoma (ICC) (6/26; 23%), extra-hepatic cholangiocarcinoma (ECC) (3/18; 17%)] and 24% [AMP (1/13; 8%), GBC (1/10; 10%), ICC (10/26; 38%), ECC (4/18; 22%)], respectively. CONCLUSIONS A significant subset of patients with BTC expressed HER3. Inhibition of HER3 warrants further investigation. A better understanding of the downstream effects of HER3 in BTC requires further mechanistic investigations to identify new biomarkers and improve patient selection for future clinical trials.
Collapse
Affiliation(s)
- Angela Lamarca
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Salvatore Galdy
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
- Unit of Gastrointestinal Medical Oncology and Neuroendocrine Tumours, European Institute of Oncology, Milan, Italy
| | - Jorge Barriuso
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Sharzad Moghadam
- Manchester Cancer Research Centre Biobank, University of Manchester, Manchester, United Kingdom
| | - Elizabeth Beckett
- The Christie Pathology Partnership, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Jane Rogan
- Manchester Cancer Research Centre Biobank, University of Manchester, Manchester, United Kingdom
| | - Alison Backen
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Catherine Billington
- The Christie Pathology Partnership, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Mairéad G. McNamara
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Richard A. Hubner
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Angela Cramer
- The Christie Pathology Partnership, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Juan W. Valle
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| |
Collapse
|
16
|
Voutsadakis IA. HER2 in stemness and epithelial-mesenchymal plasticity of breast cancer. Clin Transl Oncol 2018; 21:539-555. [PMID: 30306401 DOI: 10.1007/s12094-018-1961-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 10/03/2018] [Indexed: 02/06/2023]
Abstract
Breast cancer had been the first non-hematologic malignancy where sub-types based on molecular characterization had entered clinical practice. HER2 over-expression, due to either gene amplification or protein up-regulation, defines one of these sub-types and is clinically exploited by addition of HER2-targeted treatments to the regimens of treatment. Nevertheless, in many occasions HER2-positive cancers are resistant or become refractory to these therapies. Several mechanisms, such as activation of alternative pathways or loss of expression of the receptor in cancer cells, have been proposed as the cause of these therapeutic failures. Cancer stem cells (CSCs, alternatively called tumor-initiating cells) comprise a small percentage of the tumor cells, but are capable of reconstituting and propagating tumors due to their superior intrinsic capacity for regeneration, survival and resistance to therapies. CSCs possess circuits enabling epigenetic plasticity which endow them with the ability to alternate between epithelial and mesenchymal states. This paper will discuss the expression and regulation of HER2 in CSCs of the different sub-types of breast cancer and relationships of the receptor with both the circuits of stemness and epithelial-mesenchymal plasticity. Therapeutic repercussions of the relationship of HER2-initiated signaling with stemness networks will also be proposed.
Collapse
Affiliation(s)
- I A Voutsadakis
- Algoma District Cancer Program, Sault Area Hospital, 750 Great Northern Road, Sault Ste. Marie, ON, P6B 0A8, Canada. .,Section of Internal Medicine, Division of Clinical Sciences, Northern Ontario School of Medicine, Sudbury, ON, Canada.
| |
Collapse
|
17
|
Milovanovic J, Todorovic-Rakovic N, Vujasinovic T, Abu Rabi Z. Interleukin 8 in progression of hormone-dependent early breast cancer. J Biosci 2018; 42:265-274. [PMID: 28569250 DOI: 10.1007/s12038-017-9679-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jelena Milovanovic
- Department of Experimental Oncology, Institute of Oncology and Radiology of Serbia, Belgrade, Serbia
| | | | | | | |
Collapse
|
18
|
Sharma I, Singh A, Siraj F, Saxena S. IL-8/CXCR1/2 signalling promotes tumor cell proliferation, invasion and vascular mimicry in glioblastoma. J Biomed Sci 2018; 25:62. [PMID: 30086759 PMCID: PMC6081798 DOI: 10.1186/s12929-018-0464-y] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 07/31/2018] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Glioblastoma multiforme (GBM) is one of the lethal malignant tumors of the central nervous system. Despite advances made in understanding this complex disease, little has been achieved in improving clinical efficacy towards it. Factors such as chemokines play important role in shaping the tumor microenvironment which in turn plays a significant role in deciding course of tumor progression. In this study, we investigated the role of chemokine IL-8 in glioblastoma progression with particular emphasis on immunomodulation, cellular proliferation, invasion and vascular mimicry. METHODS Role of IL-8 in GBM immunology was determined by correlating the expression of IL-8 by immunohistochemistry with other immune cell markers such as CD3 and CD68. Effect of high IL-8 expression on overall survival, the difference in expression level between different GBM subgroups and anatomic structures were analyzed using other databases. Two GBM cell lines -U-87MG and LN-18 were used to study the impact of targeting IL-8-CXCR1/2 signalling using neutralizing antibodies and pharmacological antagonist. Reverse transcriptase-polymerase chain reaction and immunocytochemistry were used to determine the expression of these axes. Impact on cell viability and proliferation was assessed by MTT, proliferation marker-ki-67 and clonogenic survival assays. Multicellular tumor spheroids generated from GBM cell lines were used to study invasion in matrigel. RESULTS Weak Positive correlation was observed between IL-8 and CD3 as well as between IL-8 and CD68. High IL-8 expression in GBM patients was found to be associated with dismal survival. No significant difference in IL-8 expression between different molecular subgroups of GBM was observed. In vitro targeting of IL-8-CXCR1/2 signalling displayed a significant reduction in cell viability and proliferation, and spheroid invasion. Furthermore, the presence of CD34-/CXCR1+ vessels in GBM tissues showed the involvement of IL-8/CXCR1 in vascular mimicry structure formation. CONCLUSION These results suggest a direct involvement of IL-8-CXCR1/2 axes in GBM progression by promoting both cell proliferation and invasion and indirectly by promoting neovascularization in the form of vascular mimicry.
Collapse
Affiliation(s)
- Ira Sharma
- National Institute of Pathology, Safdarjung Hospital Campus, Room No. 610, 6th floor, Ansari Nagar, New Delhi, 110029 India
- Symbiosis International University, Pune, India
| | - Avninder Singh
- National Institute of Pathology, Safdarjung Hospital Campus, Room No. 610, 6th floor, Ansari Nagar, New Delhi, 110029 India
| | - Fouzia Siraj
- National Institute of Pathology, Safdarjung Hospital Campus, Room No. 610, 6th floor, Ansari Nagar, New Delhi, 110029 India
| | - Sunita Saxena
- National Institute of Pathology, Safdarjung Hospital Campus, Room No. 610, 6th floor, Ansari Nagar, New Delhi, 110029 India
| |
Collapse
|
19
|
Nushtaeva AA, Stepanov GA, Semenov DV, Juravlev ES, Balahonova EA, Gerasimov AV, Sidorov SV, Savelyev EI, Kuligina EV, Richter VA, Koval OA. Characterization of primary normal and malignant breast cancer cell and their response to chemotherapy and immunostimulatory agents. BMC Cancer 2018; 18:728. [PMID: 29986702 PMCID: PMC6038312 DOI: 10.1186/s12885-018-4635-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 06/25/2018] [Indexed: 01/08/2023] Open
Abstract
Background The phenomenon of chemotherapy-resistant cancers has necessitated the development of new therapeutics as well as the identification of specific prognostic markers to predict the response to novel drugs. Primary cancer cells provide a model to study the multiplicity of tumourigenic transformation, to investigate alterations of the cellular response to various molecular stimuli, and to test therapeutics for cancer treatment. Methods Here, we developed primary cultures of human breast tissue – normal cells (BN1), cancer cells (BC5), and cells from a chemotherapy-treated tumour (BrCCh1) to compare their response to conventional chemotherapeutics and to innate immunity stimulators with that of the immortalized breast cells MCF7, MDA-MB-231, and MCF10A. Expression of the progesterone receptor (PGR), oestrogen receptor (ER) α and β, human epidermal growth factor receptor (HER) 2 and 3 and aromatase CYP19, as well as expression of interferon-induced protein with tetratricopeptide repeats 3 (IFIT3) mRNA in human breast cells were characterized. Results We revealed that BC5 carcinoma cells were PGRlow/ERbhigh/ERa−/Cyp19+, the BrCCh1 cells that originated from the recurrent tumour were PGR−/ERb+/ERa−/Cyp19+, and normal BN cells were PGR−/ERb+/ERa−/Cyp19high. The treatment of primary culture cells with antitumour therapeutics revealed that BrCCh1 cells were doxorubicine-resistant and sensitive to cisplatin. BC5 cells exhibited low sensitivity to tamoxifen and cisplatin. The innate immunity activators interferon-α and an artificial small nucleolar RNA analogue increased expression of IFIT3 at different levels in primary cells and in the immortalized breast cells MCF7, MDA-MB-231, and MCF10A. The relative level of activation of IFIT3 expression was inversely correlated with the baseline level of IFIT3 mRNA expression in breast cell lines. Conclusion Our data demonstrated that primary cancer cells are a useful model for the development of novel cancer treatments. Our findings suggest that expression of IFIT3 mRNA can be used as a prognostic marker of breast cancer cell sensitivity to immunostimulating therapeutics.
Collapse
Affiliation(s)
- Anna A Nushtaeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia
| | - Grigory A Stepanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia.,Novosibirsk State University, Pirogova str., 1, 630090, Novosibirsk, Russia
| | - Dmitry V Semenov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia
| | - Evgeny S Juravlev
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia.,Novosibirsk State University, Pirogova str., 1, 630090, Novosibirsk, Russia
| | - Evgenia A Balahonova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia
| | - Alexey V Gerasimov
- National Novosibirsk Regional Oncology Dispensary, Plakhotnogo str., 2, 630000, Novosibirsk, Russia
| | - Sergey V Sidorov
- Novosibirsk Municipal Budgetary Healthcare Institution "Municipal Clinical Hospital #1", Zalessky str., 6, 630047, Novosibirsk, Russia
| | - Eugeniy I Savelyev
- Center of New Medical Technologies, Pirogova, str., 25/4, 630090, Novosibirsk, Russia
| | - Elena V Kuligina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia
| | - Vladimir A Richter
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia
| | - Olga A Koval
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentiev Avenue, 8, 630090, Novosibirsk, Russia. .,Novosibirsk State University, Pirogova str., 1, 630090, Novosibirsk, Russia.
| |
Collapse
|
20
|
Peckys DB, Korf U, Wiemann S, de Jonge N. Liquid-phase electron microscopy of molecular drug response in breast cancer cells reveals irresponsive cell subpopulations related to lack of HER2 homodimers. Mol Biol Cell 2017; 28:mbc.E17-06-0381. [PMID: 28794264 PMCID: PMC5687022 DOI: 10.1091/mbc.e17-06-0381] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/27/2017] [Accepted: 08/01/2017] [Indexed: 12/31/2022] Open
Abstract
The development of drug resistance in cancer poses a major clinical problem. An example is human epidermal growth factor receptor 2 (HER2) overexpressing breast cancer often treated with anti-HER2 antibody therapies, such as trastuzumab. Since drug resistance is rooted mainly in tumor cell heterogeneity, we examined the drug effect in different subpopulations of SKBR3 breast cancer cells, and compared the results with a drug resistant cell line, HCC1954. Correlative light microscopy and liquid-phase scanning transmission electron microscopy (STEM) were used to quantitatively analyze HER2 responses upon drug binding, whereby many tens of whole cells were imaged. Trastuzumab was found to selectively cross-link and down regulate HER2 homodimers from the plasma membranes of bulk cancer cells. In contrast, HER2 resided mainly as monomers in rare subpopulations of resting- and cancer stem cells (CSCs), and these monomers were not internalized after drug binding. The HER2 distribution was hardly influenced by trastuzumab for the HCC1954 cells. These findings show that resting cells and CSCs are irresponsive to the drug, and thus point towards a molecular explanation behind the origin of drug resistance. This analytical method is broadly applicable to study membrane protein interactions in the intact plasma membrane, while accounting for cell heterogeneity.
Collapse
Affiliation(s)
- Diana B Peckys
- Department of Biophysics, Saarland University, D-66421 Homburg, Germany
| | - Ulrike Korf
- Division of Molecular Genome Analysis, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Niels de Jonge
- INM - Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
- Department of Physics, Saarland University, 66123 Saarbrücken, Germany
| |
Collapse
|
21
|
McFarland CD, Yaglom JA, Wojtkowiak JW, Scott JG, Morse DL, Sherman MY, Mirny LA. The Damaging Effect of Passenger Mutations on Cancer Progression. Cancer Res 2017; 77:4763-4772. [PMID: 28536279 DOI: 10.1158/0008-5472.can-15-3283-t] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/02/2017] [Accepted: 05/16/2017] [Indexed: 01/29/2023]
Abstract
Genomic instability and high mutation rates cause cancer to acquire numerous mutations and chromosomal alterations during its somatic evolution; most are termed passengers because they do not confer cancer phenotypes. Evolutionary simulations and cancer genomic studies suggest that mildly deleterious passengers accumulate and can collectively slow cancer progression. Clinical data also suggest an association between passenger load and response to therapeutics, yet no causal link between the effects of passengers and cancer progression has been established. To assess this, we introduced increasing passenger loads into human cell lines and immunocompromised mouse models. We found that passengers dramatically reduced proliferative fitness (∼3% per Mb), slowed tumor growth, and reduced metastatic progression. We developed new genomic measures of damaging passenger load that can accurately predict the fitness costs of passengers in cell lines and in human breast cancers. We conclude that genomic instability and an elevated load of DNA alterations in cancer is a double-edged sword: it accelerates the accumulation of adaptive drivers, but incurs a harmful passenger load that can outweigh driver benefit. The effects of passenger alterations on cancer fitness were unrelated to enhanced immunity, as our tests were performed either in cell culture or in immunocompromised animals. Our findings refute traditional paradigms of passengers as neutral events, suggesting that passenger load reduces the fitness of cancer cells and slows or prevents progression of both primary and metastatic disease. The antitumor effects of chemotherapies can in part be due to the induction of genomic instability and increased passenger load. Cancer Res; 77(18); 4763-72. ©2017 AACR.
Collapse
Affiliation(s)
| | - Julia A Yaglom
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts
| | - Jonathan W Wojtkowiak
- Department of Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Jacob G Scott
- Translational Hematology and Oncology Research, and Radiation Oncology, Cleveland Clinic, Cleveland, Ohio
| | - David L Morse
- Department of Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Michael Y Sherman
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts.
| | - Leonid A Mirny
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts. .,Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts
| |
Collapse
|
22
|
RNF20 and histone H2B ubiquitylation exert opposing effects in Basal-Like versus luminal breast cancer. Cell Death Differ 2017; 24:694-704. [PMID: 28157208 DOI: 10.1038/cdd.2016.126] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 09/28/2016] [Accepted: 10/04/2016] [Indexed: 11/09/2022] Open
Abstract
Breast cancer subtypes display distinct biological traits that influence their clinical behavior and response to therapy. Recent studies have highlighted the importance of chromatin structure regulators in tumorigenesis. The RNF20-RNF40 E3 ubiquitin ligase complex monoubiquitylates histone H2B to generate H2Bub1, while the deubiquitinase (DUB) USP44 can remove this modification. We found that RNF20 and RNF40 expression and global H2Bub1 are relatively low, and USP44 expression is relatively high, in basal-like breast tumors compared with luminal tumors. Consistent with a tumor-suppressive role, silencing of RNF20 in basal-like breast cancer cells increased their proliferation and migration, and their tumorigenicity and metastatic capacity, partly through upregulation of inflammatory cytokines. In contrast, in luminal breast cancer cells, RNF20 silencing reduced proliferation, migration and tumorigenic and metastatic capacity, and compromised estrogen receptor transcriptional activity, indicating a tumor-promoting role. Notably, the effects of USP44 silencing on proliferation and migration in both cancer subtypes were opposite to those of RNF20 silencing. Hence, RNF20 and H2Bub1 have contrasting roles in distinct breast cancer subtypes, through differential regulation of key transcriptional programs underpinning the distinctive traits of each subtype.
Collapse
|
23
|
Selitrennik M, Lev S. PYK2 integrates growth factor and cytokine receptors signaling and potentiates breast cancer invasion via a positive feedback loop. Oncotarget 2016; 6:22214-26. [PMID: 26084289 PMCID: PMC4673158 DOI: 10.18632/oncotarget.4257] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 05/29/2015] [Indexed: 12/27/2022] Open
Abstract
The involvement of ErbB family members in breast cancer progression and metastasis has been demonstrated by many studies. However, the downstream effectors that mediate their migratory and invasive responses have not been fully explored. In this study, we show that the non-receptor tyrosine kinase PYK2 is a key effector of EGFR and HER2 signaling in human breast carcinoma. We found that PYK2 is activated by both EGF and heregulin (HRG) in breast cancer cells, and positively regulates EGF/HRG-induced cell spreading, migration and invasion. PYK2 depletion markedly affects ERK1/2 and STAT3 phosphorylation in response to EGF/HRG as well as to IL8 treatment. Importantly, PYK2 depletion also reduced EGF/HRG-induced MMP9 and IL8 transcription, while IL8 inhibition abrogated EGF-induced MMP9 transcription and attenuated cell invasion. IL8, which is transcriptionally regulated by STAT3 and induces PYK2 activation, prolonged EGF-induced PYK2, STAT3 and ERK1/2 phosphorylation suggesting that IL8 acts through an autocrine loop to reinforce EGF-induced signals. Collectively our studies suggest that PYK2 is a common downstream effector of ErbB and IL8 receptors, and that PYK2 integrates their signaling pathways through a positive feedback loop to potentiate breast cancer invasion. Hence, PYK2 could be a potential therapeutic target for a subset of breast cancer patients.
Collapse
Affiliation(s)
- Michael Selitrennik
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot, Israel
| | - Sima Lev
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot, Israel
| |
Collapse
|
24
|
Nash CE, Mavria G, Baxter EW, Holliday DL, Tomlinson DC, Treanor D, Novitskaya V, Berditchevski F, Hanby AM, Speirs V. Development and characterisation of a 3D multi-cellular in vitro model of normal human breast: a tool for cancer initiation studies. Oncotarget 2016; 6:13731-41. [PMID: 25915532 PMCID: PMC4537045 DOI: 10.18632/oncotarget.3803] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 03/18/2015] [Indexed: 11/25/2022] Open
Abstract
Multicellular 3-dimensional (3D) in vitro models of normal human breast tissue to study cancer initiation are required. We present a model incorporating three of the major functional cell types of breast, detail the phenotype and document our breast cancer initiation studies. Myoepithelial cells and fibroblasts were isolated and immortalised from breast reduction mammoplasty samples. Tri-cultures containing non-tumorigenic luminal epithelial cells HB2, or HB2 overexpressing different HER proteins, together with myoepithelial cells and fibroblasts were established in collagen I. Phenotype was assessed morphologically and immunohistochemically and compared to normal breast tissue. When all three cell types were present, polarised epithelial structures with lumens and basement membrane production were observed, akin to normal human breast tissue. Overexpression of HER2 or HER2/3 caused a significant increase in size, while HER2 overexpression resulted in development of a DCIS-like phenotype. In summary, we have developed a 3D tri-cellular model of normal human breast, amenable to comparative analysis after genetic manipulation and with potential to dissect the mechanisms behind the early stages of breast cancer initiation.
Collapse
Affiliation(s)
- Claire E Nash
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK.,Current address: The Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Georgia Mavria
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| | - Euan W Baxter
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| | | | - Darren C Tomlinson
- Leeds Institute of Biomedical and Clinical Sciences, University of Leeds, Leeds, UK
| | - Darren Treanor
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK.,Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Vera Novitskaya
- School of Cancer Sciences, University of Birmingham, Birmingham, UK
| | | | - Andrew M Hanby
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| | - Valerie Speirs
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| |
Collapse
|
25
|
Chan ASL, Lau WWI, Szeto ACH, Wang J, Wong YH. Differential Regulation of CXCL8 Production by Different G Protein Subunits with Synergistic Stimulation by Gi- and Gq-Regulated Pathways. J Mol Biol 2016; 428:3869-84. [PMID: 27040396 DOI: 10.1016/j.jmb.2016.03.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/22/2016] [Accepted: 03/24/2016] [Indexed: 01/14/2023]
Abstract
CXCL8 (also known as interleukin-8 or IL-8) is a proinflammatory chemokine that not only modulates the inflammatory and immune responses, but whose upregulation is often associated with diseases including various types of cancer. Although numerous ligands for G protein-coupled receptors (GPCRs) have been shown to stimulate the production of CXCL8, the specificity of the G protein signal remains undefined. By expressing the constitutively active Gα subunits in HEK293 cells, CXCL8 production was herein demonstrated to be most effectively stimulated by Gαq family members, while those of Gαs and Gα12 elicited much weaker activities, and Gαi being totally ineffective. However, in cell lines such as HepG2, HeLa, and MCF-7 that endogenously express Gβγ-responsive phospholipase Cβ isoforms (PLCβ2/3), activation of the Gi-coupled α2-adrenoceptor significantly stimulated CXCL8 production. This Gi-induced CXCL8 production was apparently mediated via specific Gβγ dimers and required the presence of PLCβ2/3. Co-activation of Gi-coupled α2-adrenoceptor and Gq-coupled bradykinin receptor resulted in a synergistic CXCL8 production, with Gβγ-responsive PLCβ2/3, Src, ERK, and STAT3 serving as critical signaling intermediates. The treatment of HepG2 and B-10 endothelial cells with bradykinin stimulated CXCL8 production and cell proliferation. Interestingly, the latter response was driven by CXCL8 autocrine signaling because it was abolished by SB225002, an antagonist that prevents CXCL8 from binding to CXCR2. Collectively, our results provide a mechanistic basis for various G protein subfamilies to regulate the production of CXCL8, which may then lead to paracrine and/or autocrine signaling with major implications in both normal physiology and pathophysiological conditions.
Collapse
Affiliation(s)
- Anthony S L Chan
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Winnie W I Lau
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Aydan C H Szeto
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jiuling Wang
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yung H Wong
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China; State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| |
Collapse
|
26
|
Hertel F, Mo GCH, Duwé S, Dedecker P, Zhang J. RefSOFI for Mapping Nanoscale Organization of Protein-Protein Interactions in Living Cells. Cell Rep 2015; 14:390-400. [PMID: 26748717 DOI: 10.1016/j.celrep.2015.12.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 09/04/2015] [Accepted: 12/06/2015] [Indexed: 11/27/2022] Open
Abstract
It has become increasingly clear that protein-protein interactions (PPIs) are compartmentalized in nanoscale domains that define the biochemical architecture of the cell. Despite tremendous advances in super-resolution imaging, strategies to observe PPIs at sufficient resolution to discern their organization are just emerging. Here we describe a strategy in which PPIs induce reconstitution of fluorescent proteins (FPs) that are capable of exhibiting single-molecule fluctuations suitable for stochastic optical fluctuation imaging (SOFI). Subsequently, spatial maps of these interactions can be resolved in super-resolution in living cells. Using this strategy, termed reconstituted fluorescence-based SOFI (refSOFI), we investigated the interaction between the endoplasmic reticulum (ER) Ca(2+) sensor STIM1 and the pore-forming channel subunit ORAI1, a crucial process in store-operated Ca(2+) entry (SOCE). Stimulating SOCE does not appear to change the size of existing STIM1/ORAI1 interaction puncta at the ER-plasma membrane junctions, but results in an apparent increase in the number of interaction puncta.
Collapse
Affiliation(s)
- Fabian Hertel
- Department of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Gary C H Mo
- Department of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Sam Duwé
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Peter Dedecker
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Jin Zhang
- Department of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
| |
Collapse
|
27
|
Mar AC, Chu CH, Lee HJ, Chien CW, Cheng JJ, Yang SH, Jiang JK, Lee TC. Interleukin-1 Receptor Type 2 Acts with c-Fos to Enhance the Expression of Interleukin-6 and Vascular Endothelial Growth Factor A in Colon Cancer Cells and Induce Angiogenesis. J Biol Chem 2015. [PMID: 26209639 DOI: 10.1074/jbc.m115.644823] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Interleukin-1 receptor type 2 (IL1R2) acts as a decoy receptor of exogenous IL-1; however, its intracellular activity is poorly understood. We previously demonstrated that IL1R2 intracellularly activates the expression of several proinflammatory cytokines and affects cell migration. In this study, we found that intracellular IL1R2 expression was increased in human colorectal cancer cells (CRCs) compared with normal colon cells. We also observed that the mRNA levels of IL1R2 were highly correlated with IL-6 in tumor tissues of CRC patients. By modulating its expression in CRC cells, we verified that enhanced IL1R2 expression transcriptionally activated the expression of IL-6 and VEGF-A. Conditioned medium harvested from IL1R2-overexpressing CRC cells contained higher levels of IL-6 and VEGF-A than that from vector control cells and significantly enhanced the proliferation, migration, and tube formation of cultured endothelial cells. We further demonstrated a positive association of intracellular IL1R2 levels with tumor growth and microvessel density in xenograft mouse models. These results revealed that IL1R2 activates the expression of angiogenic factors. Mechanistically, we revealed that IL1R2 complexes with c-Fos and binds to the AP-1 site at the IL-6 and VEGF-A promoters. Together, these results reveal a novel function of intracellular IL1R2 that acts with c-Fos to enhance the transcription of IL-6 and VEGF-A, which promotes angiogenesis in CRC.
Collapse
Affiliation(s)
- Ai-Chung Mar
- From the Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei 11529, Taiwan, the Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Chun-Ho Chu
- the Institute of Pharmacology and the Department of Surgery, Koo Foundation, Sun Yat-Sen Cancer Center, Taipei 11221, Taiwan
| | - Hui-Ju Lee
- the Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Chia-Wen Chien
- the Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Jing-Jy Cheng
- the National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11221, Taiwan, and
| | - Shung-Haur Yang
- the Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 11221, Taiwan the School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan
| | - Jeng-Kai Jiang
- the Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 11221, Taiwan the School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan
| | - Te-Chang Lee
- the Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan,
| |
Collapse
|
28
|
Singh N, Joshi R, Komurov K. HER2-mTOR signaling-driven breast cancer cells require ER-associated degradation to survive. Sci Signal 2015; 8:ra52. [PMID: 26012635 DOI: 10.1126/scisignal.aaa6922] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Targeting non-oncogenic vulnerabilities may provide additional therapeutic approaches in tumors that are resistant to oncogene-targeted therapy. Using a computational pathway-based approach, we interrogated clinical breast cancer genomic data sets for candidate non-oncogenic vulnerabilities in breast cancers that have genomic amplification of ERBB2, which encodes human epidermal growth factor 2 (HER2). HER2-positive (HER2(+)) breast cancers showed increased expression of genes encoding proteins in the endoplasmic reticulum (ER)-associated degradation (ERAD) pathway. Genetic ablation or pharmacological inhibition of ERAD led to irrecoverable ER stress and selectively killed HER2(+) breast cancer cells. Cell death caused by ERAD inhibition partially depended on increased HER2-mTOR signaling, which imposed an increased proteotoxic burden on the ER. Cell death in response to ER stress required the IRE1α-JNK pathway, which was selectively suppressed in HER2(+) breast cancers by phosphatases that inactivate JNK. Accordingly, the cytotoxicity of inhibiting ERAD as well as JNK phosphatases was synergistic in HER2(+) but not in HER2-negative breast cancer cells. Therefore, our study suggests that reactivation of oncogene-induced stress by targeting stress-adaptive pathways may be a beneficial approach for therapy-resistant breast cancers.
Collapse
Affiliation(s)
- Navneet Singh
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Rashika Joshi
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Kakajan Komurov
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA. Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA. Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
| |
Collapse
|
29
|
Grimm S, Jennek S, Singh R, Enkelmann A, Junker K, Rippaus N, Berndt A, Friedrich K. Malignancy of bladder cancer cells is enhanced by tumor-associated fibroblasts through a multifaceted cytokine-chemokine loop. Exp Cell Res 2015; 335:1-11. [PMID: 25911129 DOI: 10.1016/j.yexcr.2015.04.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 11/04/2014] [Accepted: 11/11/2014] [Indexed: 12/11/2022]
Abstract
The microenvironment of tumor cells is critically involved in tumor development and progression. Tumor-associated fibroblasts (TAFs) represent a major constituent of the tumor stroma. Tumor cells are operative in the activation of TAFs, whereas TAFs in turn contribute to tumor cell malignancy. This report describes mechanisms of communication between fibroblasts and urinary bladder cancer (UBC) cells. Migration of bladder cancer cell lines RT112 and Cal-29, representing two different grades of dedifferentiation, was enhanced by cocultivation with TAFs. Conditioned medium from tumor cells induced the release of interleukin (IL)-8, hepatocyte growth factor (HGF), matrix metalloproteinase-2, granulocyte macrophage colony-stimulating factor, and monocyte chemotactic protein (MCP)-1 by TAFs. Tumor cell-derived IL-1α was identified as a major mediator of these stimulatory effects. Fibroblasts, on the other hand, exerted a migration and invasion stimulating influence on UBC cells. MCP-1 and HGF were shown to promote cell migration of both bladder cancer cell lines.
Collapse
Affiliation(s)
- Susanne Grimm
- Jena University Hospital, Institute of Biochemistry II, Jena, Germany
| | - Susanne Jennek
- Jena University Hospital, Institute of Biochemistry II, Jena, Germany
| | - Rajan Singh
- Jena University Hospital, Institute of Biochemistry II, Jena, Germany
| | | | - Kerstin Junker
- Jena University Hospital, Department of Urology, Jena, Germany
| | - Nora Rippaus
- Jena University Hospital, Institute of Biochemistry II, Jena, Germany
| | | | | |
Collapse
|
30
|
Singh JK, Simões BM, Howell SJ, Farnie G, Clarke RB. Recent advances reveal IL-8 signaling as a potential key to targeting breast cancer stem cells. Breast Cancer Res 2014; 15:210. [PMID: 24041156 PMCID: PMC3978717 DOI: 10.1186/bcr3436] [Citation(s) in RCA: 179] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Breast cancer stem-like cells (CSCs) are an important therapeutic target as they are purported to be responsible for tumor initiation, maintenance, metastases, and disease recurrence. Interleukin-8 (IL-8) is upregulated in breast cancer compared with normal breast tissue and is associated with poor prognosis. IL-8 is reported to promote breast cancer progression by increasing cell invasion, angiogenesis, and metastases and is upregulated in HER2-positive cancers. Recently, we and others have established that IL-8 via its cognate receptors, CXCR1 and CXCR2, is also involved in regulating breast CSC activity. Our work demonstrates that in metastatic breast CSCs, CXCR1/2 signals via transactivation of HER2. Given the importance of HER2 in breast cancer and in regulating CSC activity, a pathway driving the activation of these receptors would have important biological and clinical consequences, especially in tumors that express high levels of IL-8 and other CXCR1/2-activating ligands. Here, we review the IL-8 signaling pathway and the role of HER2 in maintaining an IL-8 inflammatory loop and discuss the potential of combining CXCR1/2 inhibitors with other treatments such as HER2-targeted therapy as a novel approach to eliminate CSCs and improve patient survival.
Collapse
|
31
|
McElwee JL, Mohanan S, Horibata S, Sams KL, Anguish LJ, McLean D, Cvitaš I, Wakshlag JJ, Coonrod SA. PAD2 overexpression in transgenic mice promotes spontaneous skin neoplasia. Cancer Res 2014; 74:6306-17. [PMID: 25213324 DOI: 10.1158/0008-5472.can-14-0749] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Peptidylarginine deiminase 2 (PAD2/PADI2) has been implicated in various inflammatory diseases and, more recently, cancer. The goal of this study was to test the hypothesis that PAD2 promotes oncogenesis using a transgenic mouse model. We found that about 37% of transgenic mice overexpressing human FLAG-PAD2 downstream of the MMTV-LTR promoter develop spontaneous neoplastic skin lesions. Molecular and histopathologic analyses of the resulting lesions find that they contain increased levels of markers for invasion, inflammation, and epithelial-to-mesenchymal transition (EMT) and that a subset of the lesions progress to invasive squamous cell carcinoma (SCC). We then stably overexpressed FLAG-PAD2 in the human SCC cell line, A431, and found that the PAD2-overexpressing cells were more tumorigenic in vitro and also contained elevated levels of markers for inflammation and EMT. Collectively, these studies provide the first genetic evidence that PAD2 functions as an oncogene and suggest that PAD2 may promote tumor progression by enhancing inflammation within the tumor microenvironment.
Collapse
Affiliation(s)
- John L McElwee
- Department of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, New York
| | | | - Sachi Horibata
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Kelly L Sams
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Lynne J Anguish
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Dalton McLean
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Iva Cvitaš
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Joseph J Wakshlag
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Scott A Coonrod
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, New York.
| |
Collapse
|
32
|
Abstract
Standard treatment options for breast cancer include surgery, chemotherapy, radiation, and targeted therapies, such as adjuvant hormonal therapy and monoclonal antibodies. Recently, the recognition that chronic inflammation in the tumor microenvironment promotes tumor growth and survival during different stages of breast cancer development has led to the development of novel immunotherapies. Several immunotherapeutic strategies have been studied both preclinically and clinically and already have been shown to enhance the efficacy of conventional treatment modalities. Therefore, therapies targeting the immune system may represent a promising next-generation approach for the treatment of breast cancers. This review will discuss recent findings that elucidate the roles of suppressive immune cells and proinflammatory cytokines and chemokines in the tumor-promoting microenvironment, and the most current immunotherapeutic strategies in breast cancer.
Collapse
Affiliation(s)
- Xinguo Jiang
- Department of Medicine, VA Palo Alto Health Care System/Stanford University School of Medicine, Stanford, CA 94305, USA
| |
Collapse
|
33
|
Berghoff AS, Bartsch R, Preusser M, Ricken G, Steger GG, Bago-Horvath Z, Rudas M, Streubel B, Dubsky P, Gnant M, Fitzal F, Zielinski CC, Birner P. Co-overexpression of HER2/HER3 is a predictor of impaired survival in breast cancer patients. Breast 2014; 23:637-43. [PMID: 25017122 DOI: 10.1016/j.breast.2014.06.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 06/09/2014] [Accepted: 06/10/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Recently, HER3-expression was postulated as independent risk factor for metastatic spread. Therefore, we investigated the role of HER3 expression as prognostic marker in metastatic breast cancer patients. METHODS Patients of different breast cancer subtypes diagnosed with metastatic disease (visceral and/or brain metastases) were identified from a breast cancer database. Tissue samples of the respective primary tumors were retrieved, and immunohistochemical staining for estrogen-receptor, progesterone-receptor, HER2, and HER3 was performed. In HER2 equivocal and selected HER3 positive cases, subsequent fluorescent in situ hybridization (FISH) analysis was performed. RESULTS Tissue specimens of 110 patients were available for this analysis. 21% had strong, complete, membranous HER3 staining of at least 10% of all tumor cells; HER3 protein expression was not associated with HER3 gene amplification. HER2/HER3 co-overexpression was observed in 12/110 (11%) specimens and HER3-overexpression showed a statistically significant association with HER2-overexpression (p = 0.02). No correlation was observed for HER3-overexpression and overall survival (OS), time to diagnosis of brain metastases, and incidence of brain metastases. Still, in patients with HER3 overexpression, a higher rate of 'brain only' metastatic behavior was observed (p = 0.042). In the HER2-positive subgroup, HER3-overexpression was significantly associated with shorter OS from diagnosis of metastatic disease (median 17 vs. 35 months; p = 0.04; log rank test). CONCLUSIONS HER2/HER3 co-overexpression is significantly associated with impaired OS from diagnosis of metastatic disease in patients with HER2-positive metastatic breast cancer. Co-inhibition of HER2 and HER3 or the inhibition of HER2/HER3 hetero-dimerization may improve clinical outcome in this subgroup.
Collapse
Affiliation(s)
- Anna S Berghoff
- Institute of Neurology, Medical University of Vienna, Austria; Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria
| | - Rupert Bartsch
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Medicine I, Clinical Division of Medical Oncology, Medical University of Vienna, Austria.
| | - Matthias Preusser
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Medicine I, Clinical Division of Medical Oncology, Medical University of Vienna, Austria
| | - Gerda Ricken
- Institute of Neurology, Medical University of Vienna, Austria; Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria
| | - Guenther G Steger
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Medicine I, Clinical Division of Medical Oncology, Medical University of Vienna, Austria
| | - Zsuzsanna Bago-Horvath
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Pathology, Medical University of Vienna, Austria
| | - Margareta Rudas
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Pathology, Medical University of Vienna, Austria
| | - Berthold Streubel
- Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - Peter Dubsky
- Department of Surgery, Medical University of Vienna, Austria
| | - Michael Gnant
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Surgery, Medical University of Vienna, Austria
| | - Florian Fitzal
- Department of Surgery, Medical University of Vienna, Austria
| | - Christoph C Zielinski
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Medicine I, Clinical Division of Medical Oncology, Medical University of Vienna, Austria
| | - Peter Birner
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Austria; Department of Pathology, Medical University of Vienna, Austria
| |
Collapse
|
34
|
Modery-Pawlowski CL, Gupta AS. Heteromultivalent ligand-decoration for actively targeted nanomedicine. Biomaterials 2014; 35:2568-79. [PMID: 24411677 DOI: 10.1016/j.biomaterials.2013.12.047] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 12/19/2013] [Indexed: 12/25/2022]
Abstract
Active targeting has become an important component of nanomedicine design where nanovehicles are surface-decorated with cell receptor-specific or disease matrix-specific ligands to enable site-selective binding, retention and delivery of theranostic cargo. In this context, there have been numerous reports regarding surface-modification of nanovehicles with antibodies, antibody fragments, carbohydrates, aptamers and peptides as targeting ligands. However, majority of these reports have focused on using a single type of targeting moiety on the vehicle surface. In any disease development and progression, multiple receptors and proteins are often spatio-temporally upregulated simultaneously and heterogeneously. Rationalizing from this, a significant advantage can be envisioned in targeting multiple entities simultaneously using vehicle co-decoration with multiple types of ligands, to enhance binding activity and targeting specificity. To this end, we present a comprehensive up-to-date review on research endeavors in heteromultivalent ligand-modification of nanovehicles and provide a mechanistic rationale as well as an insightful discussion of this promising area, including findings from our own research.
Collapse
Affiliation(s)
| | - Anirban Sen Gupta
- Case Western Reserve University, Department of Biomedical Engineering, Cleveland, OH 44106, USA.
| |
Collapse
|
35
|
High-throughput 3D screening reveals differences in drug sensitivities between culture models of JIMT1 breast cancer cells. PLoS One 2013; 8:e77232. [PMID: 24194875 PMCID: PMC3806867 DOI: 10.1371/journal.pone.0077232] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 09/05/2013] [Indexed: 01/11/2023] Open
Abstract
The traditional method for studying cancer in vitro is to grow immortalized cancer cells in two-dimensional monolayers on plastic. However, many cellular features are impaired in these artificial conditions, and large changes in gene expression compared to tumors have been reported. Three-dimensional cell culture models have become increasingly popular and are suggested to be better models than two-dimensional monolayers due to improved cell-to-cell contact and structures that resemble in vivo architecture. The aim of this study was to develop a simple high-throughput three-dimensional drug screening method and to compare drug responses in JIMT1 breast cancer cells when grown in two dimensions, in poly(2-hydroxyethyl methacrylate) induced anchorage-independent three-dimensional models, and in Matrigel three-dimensional cell culture models. We screened 102 compounds with multiple concentrations and biological replicates for their effects on cell proliferation. The cells were either treated immediately upon plating, or they were allowed to grow in three-dimensional cultures for 4 days before the drug treatment. Large variations in drug responses were observed between the models indicating that comparisons of culture model-influenced drug sensitivities cannot be made based on the effects of a single drug. However, we show with the 63 most prominent drugs that, in general, JIMT1 cells grown on Matrigel were significantly more sensitive to drugs than cells grown in two-dimensional cultures, while the responses of cells grown in poly(2-hydroxyethyl methacrylate) resembled those of the two-dimensional cultures. Furthermore, comparing the gene expression profiles of the cell culture models to xenograft tumors indicated that cells cultured in Matrigel and as xenografts most closely resembled each other. In this study, we also suggest that three-dimensional cultures can provide a platform for systematic experimentation of larger compound collections in a high-throughput mode and be used as alternatives to traditional two-dimensional screens for better comparability to the in vivo state.
Collapse
|
36
|
Todorović-Raković N, Milovanović J. Interleukin-8 in breast cancer progression. J Interferon Cytokine Res 2013; 33:563-70. [PMID: 23697558 PMCID: PMC3793647 DOI: 10.1089/jir.2013.0023] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 03/28/2013] [Indexed: 01/13/2023] Open
Abstract
Interleukin-8 (IL-8) is a chemokine that has an autocrine and/or paracrine tumor-promoting role and significant potential as a prognostic and/or predictive cancer biomarker. In breast cancer, which is mostly determined by expression of estrogen receptor (ER) and human epidermal growth factor receptor 2 (HER2), IL-8 could play a specific role. IL-8 is highly expressed in ER- breast cancers, but it increases invasiveness and metastatic potential of both ER- and ER+ breast cancer cells. It is also highly expressed in HER2+ breast cancers. Because of the complex crosstalk between these receptors and IL-8, its role is mainly determined by delicate balance in their signaling pathways. Therefore, the main point of this review was to analyze the possible influence of IL-8 in breast cancer progression related to its interaction with ER and HER2 and the consequent therapeutic implications of these relations.
Collapse
Affiliation(s)
- Nataša Todorović-Raković
- Department of Experimental Oncology, Institute for Oncology and Radiology of Serbia , Belgrade, Serbia
| | | |
Collapse
|
37
|
Singh JK, Simões BM, Clarke RB, Bundred NJ. Targeting IL-8 signalling to inhibit breast cancer stem cell activity. Expert Opin Ther Targets 2013; 17:1235-41. [PMID: 24032691 DOI: 10.1517/14728222.2013.835398] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Although survival from breast cancer has improved significantly over the past 20 years, disease recurrence remains a significant clinical problem. The concept of stem-like cells in cancer has been gaining currency over the last decade or so, since evidence for stem cell activity in human leukaemia and solid tumours, including breast cancer, was first published. Evidence indicates that this sub-population of cells, known as cancer stem-like cells (CSCs), is responsible for driving tumour formation and disease progression. In breast cancer, there is good evidence that CSCs are intrinsically resistant to conventional chemo-, radio- and endocrine therapies. By evading the effects of these treatments, CSCs are held culpable for disease recurrence. Hence, in order to improve treatment there is a need to develop CSC-targeted therapies. Interleukin-8 (IL-8), an inflammatory cytokine, is upregulated in breast cancer and associated with poor prognostic factors. Accumulating evidence demonstrates that IL-8, through its receptors CXCR1/2, is an important regulator of breast CSC activity. Inhibiting CXCR1/2 signalling has proved efficacious in pre-clinical models of breast cancer providing a good rationale for targeting CXCR1/2 clinically. Here, we discuss the role of IL-8 in breast CSC regulation and development of novel therapies to target CXCR1/2 signalling in breast cancer.
Collapse
Affiliation(s)
- Jagdeep K Singh
- University of Manchester, Institute of Cancer Sciences, Paterson Institute for Cancer Research, Breast Biology Group , Wilmslow Road, Manchester, M20 4BX , UK +44 161 446 3210 ;
| | | | | | | |
Collapse
|
38
|
Britschgi A, Radimerski T, Bentires-Alj M. Targeting PI3K, HER2 and the IL-8/JAK2 axis in metastatic breast cancer: Which combination makes the whole greater than the sum of its parts? Drug Resist Updat 2013; 16:68-72. [DOI: 10.1016/j.drup.2013.10.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 09/21/2013] [Indexed: 11/28/2022]
|
39
|
Sankpal NV, Fleming TP, Gillanders WE. EpCAM modulates NF-κB signaling and interleukin-8 expression in breast cancer. Mol Cancer Res 2013; 11:418-26. [PMID: 23378578 DOI: 10.1158/1541-7786.mcr-12-0518] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The epithelial cell adhesion molecule (EpCAM) is a 40-kD type I transmembrane protein that is overexpressed in human epithelial cancers and is currently the target of molecular therapy based on its overexpression at the cell surface. Recently, we and others have shown a role for EpCAM in cell signaling and carcinogenesis, and EpCAM expression seems to promote breast cancer invasion. Interleukin-8 (IL-8/CXCL-8) is an inflammatory cytokine that has recently been shown to modulate breast cancer invasion and angiogenesis. In preliminary experiments, we identified a correlation between EpCAM and IL-8 expression in primary human breast cancers. Specific ablation of EpCAM in breast cancer cell lines results in decreased IL-8 expression, and IL-8 contributes to EpCAM-dependent breast cancer invasion. Specific ablation of EpCAM is also associated with decreased NF-κB transcription factor activity, decreased phosphorylation of the NF-κB family member RELA, and increased IκBα protein expression. EpCAM modulates IL-8 expression at baseline, and following IL-1β stimulation, which is known to be a potent inducer of NF-κB in breast cancer. In functional rescue experiments, specific ablation of RELA or forced expression of the NF-κB inhibitor protein IκBα prevented EpCAM-dependent rescue of IL-8 promoter activity. These studies show for the first time that EpCAM can modulate NF-κB transcription factor activity and IL-8 expression in breast cancer and confirm the role of EpCAM signaling in modulating breast cancer invasion. Further study is required to define the molecular mechanism(s) of EpCAM signaling in breast cancer and to direct the rational development of molecular therapies targeting EpCAM.
Collapse
Affiliation(s)
- Narendra V Sankpal
- Department of Surgery, Siteman Cancer Center, Washington University School of Medicine, Saint Louis, Missouri 63110, USA
| | | | | |
Collapse
|
40
|
Abstract
Breast cancer stem cells are regulated by cell intrinsic pathways as well as by elements in the tumor microenvironment. New evidence suggests that an important interaction between the interleukin (IL)-8 receptor CXCR1/2 and HER2 is involved in this regulation. Simultaneous targeting of these pathways provides a novel therapeutic approach.
Collapse
Affiliation(s)
- Hasan Korkaya
- Comprehensive Cancer Center, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
| | | |
Collapse
|
41
|
Singh JK, Farnie G, Bundred NJ, Simões BM, Shergill A, Landberg G, Howell SJ, Clarke RB. Targeting CXCR1/2 significantly reduces breast cancer stem cell activity and increases the efficacy of inhibiting HER2 via HER2-dependent and -independent mechanisms. Clin Cancer Res 2012; 19:643-56. [PMID: 23149820 DOI: 10.1158/1078-0432.ccr-12-1063] [Citation(s) in RCA: 170] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
PURPOSE Breast cancer stem-like cells (CSC) are an important therapeutic target as they are predicted to be responsible for tumor initiation, maintenance, and metastases. Interleukin (IL)-8 is upregulated in breast cancer and is associated with poor prognosis. Breast cancer cell line studies indicate that IL-8 via its cognate receptors, CXCR1 and CXCR2, is important in regulating breast CSC activity. We investigated the role of IL-8 in the regulation of CSC activity using patient-derived breast cancers and determined the potential benefit of combining CXCR1/2 inhibition with HER2-targeted therapy. EXPERIMENTAL DESIGN CSC activity of metastatic and invasive human breast cancers (n = 19) was assessed ex vivo using the mammosphere colony-forming assay. RESULTS Metastatic fluid IL-8 level correlated directly with mammosphere formation (r = 0.652; P < 0.05; n = 10). Recombinant IL-8 directly increased mammosphere formation/self-renewal in metastatic and invasive breast cancers (n = 17). IL-8 induced activation of EGFR/HER2 and downstream signaling pathways and effects were abrogated by inhibition of SRC, EGFR/HER2, phosphoinositide 3-kinase (PI3K), or MEK. Furthermore, lapatinib, which targets EGFR/HER2, inhibited the mammosphere-promoting effect of IL-8 in both HER2-positive and negative patient-derived cancers. CXCR1/2 inhibition also blocked the effect of IL-8 on mammosphere formation and added to the efficacy of lapatinib in HER2-positive cancers. CONCLUSIONS These studies establish a role for IL-8 in the regulation of patient-derived breast CSC activity and show that IL-8/CXCR1/2 signaling is partly mediated via a novel SRC and EGFR/HER2-dependent pathway. Combining CXCR1/2 inhibitors with current HER2-targeted therapies has potential as an effective therapeutic strategy to reduce CSC activity in breast cancer and improve the survival of HER2-positive patients.
Collapse
Affiliation(s)
- Jagdeep K Singh
- Breast Biology Group, Institute of Cancer Sciences, Paterson Institute for Cancer Research, University of Manchester, Manchester, United Kingdom
| | | | | | | | | | | | | | | |
Collapse
|