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Olukoya AO, Stires H, Bahnassy S, Persaud S, Guerra Y, Ranjit S, Ma S, Cruz MI, Benitez C, Rozeboom AM, Ceuleers H, Berry DL, Jacobsen BM, Raj GV, Riggins RB. Riluzole Suppresses Growth and Enhances Response to Endocrine Therapy in ER+ Breast Cancer. J Endocr Soc 2023; 7:bvad117. [PMID: 37766843 PMCID: PMC10521904 DOI: 10.1210/jendso/bvad117] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Indexed: 09/29/2023] Open
Abstract
Background Resistance to endocrine therapy in estrogen receptor-positive (ER+) breast cancer remains a significant clinical problem. Riluzole is FDA-approved for the treatment of amyotrophic lateral sclerosis. A benzothiazole-based glutamate release inhibitor with several context-dependent mechanism(s) of action, riluzole has shown antitumor activity in multiple malignancies, including melanoma, glioblastoma, and breast cancer. We previously reported that the acquisition of tamoxifen resistance in a cellular model of invasive lobular breast cancer is accompanied by the upregulation of GRM mRNA expression and growth inhibition by riluzole. Methods We tested the ability of riluzole to reduce cell growth, alone and in combination with endocrine therapy, in a diverse set of ER+ invasive ductal and lobular breast cancer-derived cell lines, primary breast tumor explant cultures, and the estrogen-independent, ESR1-mutated invasive lobular breast cancer patient-derived xenograft model HCI-013EI. Results Single-agent riluzole suppressed the growth of ER+ invasive ductal and lobular breast cancer cell lines in vitro, inducing a histologic subtype-associated cell cycle arrest (G0-G1 for ductal, G2-M for lobular). Riluzole induced apoptosis and ferroptosis and reduced phosphorylation of multiple prosurvival signaling molecules, including Akt/mTOR, CREB, and Fak/Src family kinases. Riluzole, in combination with either fulvestrant or 4-hydroxytamoxifen, additively suppressed ER+ breast cancer cell growth in vitro. Single-agent riluzole significantly inhibited HCI-013EI patient-derived xenograft growth in vivo, and the combination of riluzole plus fulvestrant significantly reduced proliferation in ex vivo primary breast tumor explant cultures. Conclusion Riluzole may offer therapeutic benefits in diverse ER+ breast cancers, including lobular breast cancer.
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Affiliation(s)
- Ayodeji O Olukoya
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Hillary Stires
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Shaymaa Bahnassy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Sonali Persaud
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Yanira Guerra
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Suman Ranjit
- Department of Biochemistry, Georgetown University, Washington, DC 20057, USA
| | - Shihong Ma
- Departments of Urology and Pharmacology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA
| | - M Idalia Cruz
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Carlos Benitez
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Aaron M Rozeboom
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Hannah Ceuleers
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Deborah L Berry
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Britta M Jacobsen
- Department of Pathology, University of Colorado Anschutz Medical Campus, Denver, CO 80045, USA
| | - Ganesh V Raj
- Departments of Urology and Pharmacology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA
| | - Rebecca B Riggins
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
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Combination Treatment of Retinoic Acid Plus Focal Adhesion Kinase Inhibitor Prevents Tumor Growth and Breast Cancer Cell Metastasis. Cells 2022; 11:cells11192988. [PMID: 36230951 PMCID: PMC9564078 DOI: 10.3390/cells11192988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 08/17/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
All-trans retinoic acid (RA), the primary metabolite of vitamin A, controls the development and homeostasis of organisms and tissues. RA and its natural and synthetic derivatives, both known as retinoids, are promising agents in treating and chemopreventing different neoplasias, including breast cancer (BC). Focal adhesion kinase (FAK) is a crucial regulator of cell migration, and its overexpression is associated with tumor metastatic behavior. Thus, pharmaceutical FAK inhibitors (FAKi) have been developed to counter its action. In this work, we hypothesize that the RA plus FAKi (RA + FAKi) approach could improve the inhibition of tumor progression. By in silico analysis and its subsequent validation by qPCR, we confirmed RARA, SRC, and PTK2 (encoding RARα, Src, and FAK, respectively) overexpression in all breast cells tested. We also showed a different pattern of genes up/down-regulated between RA-resistant and RA-sensitive BC cells. In addition, we demonstrated that both RA-resistant BC cells (MDA-MB-231 and MDA-MB-468) display the same behavior after RA treatment, modulating the expression of genes involved in Src-FAK signaling. Furthermore, we demonstrated that although RA and FAKi administered separately decrease viability, adhesion, and migration in mammary adenocarcinoma LM3 cells, their combination exerts a higher effect. Additionally, we show that both drugs individually, as well as in combination, induce the expression of apoptosis markers such as active-caspase-3 and cleaved-PARP1. We also provided evidence that RA effects are extrapolated to other cancer cells, including T-47D BC and the human cervical carcinoma HeLa cells. In an orthotopic assay of LM3 tumor growth, whereas RA and FAKi administered separately reduced tumor growth, the combined treatment induced a more potent inhibition increasing mice survival. Moreover, in an experimental metastatic assay, RA significantly reduced metastatic lung dissemination of LM3 cells. Overall, these results indicate that RA resistance could reflect deregulation of most RA-target genes, including genes encoding components of the Src-FAK pathway. Our study demonstrates that RA plays an essential role in disrupting BC tumor growth and metastatic dissemination in vitro and in vivo by controlling FAK expression and localization. RA plus FAKi exacerbate these effects, thus suggesting that the sensitivity to RA therapies could be increased with FAKi coadministration in BC tumors.
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Zhong E, Brogi E, D’Alfonso TM, Wen H, Frosina D, Cheung NK, Jungbluth AA, Ross DS. Expression Analysis of GD2 by Immunohistochemistry in Invasive Breast Carcinoma: Clinical and Pathologic Correlation. Appl Immunohistochem Mol Morphol 2022; 30:113-118. [PMID: 34545847 PMCID: PMC8857015 DOI: 10.1097/pai.0000000000000974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/19/2021] [Indexed: 02/03/2023]
Abstract
The glycosphingolipid disialoganglioside GD2 is a cell surface-associated antigen expressed on tumors of neuroectodermal origin that serves as a target of immunotherapy in select cancer types. Information about the expression of GD2 in breast cancer is limited. In the present study, we investigate the utility of GD2 as a potential biomarker for targeted treatment. The study cohort consists of 386 breast carcinomas of several histologic types. GD2 expression was assessed in both whole tumor sections and tissue microarrays with anti-GD2 3F8 monoclonal antibody immunohistochemistry and correlated with clinicopathologic features and survival outcomes. A total of 134 (35%) breast carcinomas were positive for GD2, with a median H-score of 100. 3F8 staining displayed granular and predominantly cytoplasmic or perinuclear patterns, which was confined to the neoplastic tissue in nearly all cases. GD2 positivity was significantly associated with tumor histologic type (P=0.0015), low grade (P<0.0001), estrogen receptor positivity (P<0.0001), low stage (P=0.0014), and multifocality (P=0.022). Event-free survival and overall survival of patients with GD2-positive and GD2-negative tumors were not significantly different. Our results support further assessment of GD2 using the 3F8 antibody as a predictive and prognostic biomarker in breast cancer.
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Affiliation(s)
- Elaine Zhong
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Edi Brogi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Timothy M. D’Alfonso
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hannah Wen
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Denise Frosina
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nai-Kong Cheung
- Department of Pediatric Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Achim A. Jungbluth
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Dara S. Ross
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Hermida-Prado F, Granda-Díaz R, del-Río-Ibisate N, Villaronga MÁ, Allonca E, Garmendia I, Montuenga LM, Rodríguez R, Vallina A, Alvarez-Marcos C, Rodrigo JP, García-Pedrero JM. The Differential Impact of SRC Expression on the Prognosis of Patients with Head and Neck Squamous Cell Carcinoma. Cancers (Basel) 2019; 11:cancers11111644. [PMID: 31731442 PMCID: PMC6896085 DOI: 10.3390/cancers11111644] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 10/21/2019] [Accepted: 10/23/2019] [Indexed: 02/07/2023] Open
Abstract
Aberrant SRC expression and activation is frequently detected in multiple cancers, and hence, targeting SRC has emerged as a promising therapeutic strategy. Different SRC inhibitors have demonstrated potent anti-tumor activity in preclinical models, although they largely lack clinical efficacy as monotherapy in late-stage solid tumors, including head and neck squamous cell carcinomas (HNSCC). Adequate selection and stratification of patients who may respond to and benefit from anti-SRC therapies is therefore needed to guide clinical trials and treatment efficacy. This study investigates the prognostic significance of active SRC expression in a homogeneous cohort of 122 human papillomavirus (HPV)-negative, surgically treated HNSCC patients. Immunohistochemical evaluation of the active form of SRC by means of anti-SRC Clone 28 monoclonal antibody was specifically performed and subsequently correlated with clinical data. The expression of p-SRC (Tyr419), total SRC, and downstream SRC effectors was also analyzed. Our results uncovered striking differences in the prognostic relevance of SRC expression in HNSCC patients depending on the tumor site. Active SRC expression was found to significantly associate with advanced disease stages, presence of lymph node metastasis, and tumor recurrences in patients with laryngeal tumors, but not in the pharyngeal subgroup. Multivariate Cox analysis further revealed active SRC expression as an independent predictor of cancer-specific mortality in patients with laryngeal carcinomas. Concordantly, expression of p-SRC (Tyr419) and the SRC substrates focal adhesion kinase (FAK) and the Arf GTPase-activating protein ASAP1 also showed specific associations with poor prognosis in the larynx. These findings could have important implications in ongoing Src family kinase (SFK)-based clinical trials, as these new criteria could help to improve patient selection and develop biomarker-stratified trials.
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Affiliation(s)
- Francisco Hermida-Prado
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
| | - Rocío Granda-Díaz
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
| | - Nagore del-Río-Ibisate
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
| | - M. Ángeles Villaronga
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
| | - Eva Allonca
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
| | - Irati Garmendia
- Program in Solid Tumors, Center for Applied Medical Research (CIMA); Department of Pathology, Anatomy and Physiology, University of Navarra, and Navarra’s Health Research Institute (IDISNA), 31008 Pamplona, Spain;
| | - Luis M. Montuenga
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
- Program in Solid Tumors, Center for Applied Medical Research (CIMA); Department of Pathology, Anatomy and Physiology, University of Navarra, and Navarra’s Health Research Institute (IDISNA), 31008 Pamplona, Spain;
| | - René Rodríguez
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
| | - Aitana Vallina
- Department of Pathology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain;
| | - César Alvarez-Marcos
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
| | - Juan P. Rodrigo
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
- Correspondence: (J.P.R.); (J.M.G.-P.)
| | - Juana M. García-Pedrero
- Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, 33011 Oviedo, Spain; (F.H.-P.); (R.G.-D.); (N.d.-R.-I.); (M.Á.V.); (E.A.); (R.R.); (C.A.-M.)
- Ciber de Cáncer, CIBERONC, Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain;
- Correspondence: (J.P.R.); (J.M.G.-P.)
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Espada J, Martín-Pérez J. An Update on Src Family of Nonreceptor Tyrosine Kinases Biology. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2017; 331:83-122. [DOI: 10.1016/bs.ircmb.2016.09.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Christgen M, Steinemann D, Kühnle E, Länger F, Gluz O, Harbeck N, Kreipe H. Lobular breast cancer: Clinical, molecular and morphological characteristics. Pathol Res Pract 2016; 212:583-97. [DOI: 10.1016/j.prp.2016.05.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 04/11/2016] [Accepted: 05/04/2016] [Indexed: 01/20/2023]
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McCart Reed AE, Kutasovic JR, Vargas AC, Jayanthan J, Al-Murrani A, Reid LE, Chambers R, Da Silva L, Melville L, Evans E, Porter A, Papadimos D, Thompson EW, Lakhani SR, Simpson PT. An epithelial to mesenchymal transition programme does not usually drive the phenotype of invasive lobular carcinomas. J Pathol 2016; 238:489-94. [PMID: 26510554 DOI: 10.1002/path.4668] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 09/03/2015] [Accepted: 10/22/2015] [Indexed: 12/14/2022]
Abstract
Epithelial to mesenchymal transition (EMT) is a cellular phenotype switching phenomenon which occurs during normal development and is proposed to promote tumour cell invasive capabilities during tumour progression. Invasive lobular carcinoma (ILC) is a histological special type of breast cancer with a peculiar aetiology - the tumour cells display an invasive growth pattern, with detached, single cells or single files of cells, and a canonical feature is the loss of E-cadherin expression. These characteristics are indicative of an EMT or at the very least that they represent some plasticity between phenotypes. While some gene expression profiling data support this view, the tumour cells remain epithelial and limited immunohistochemistry data suggest that EMT markers may not feature prominently in ILC. We assessed the expression of a panel of EMT markers (fibronectin, vimentin, N-cadherin, smooth muscle actin, osteonectin, Snail, Twist) in 148 ILCs and performed a meta-analysis of publically available molecular data from 154 ILCs. Three out of 148 (2%) ILCs demonstrated an early and coordinated alteration of multiple EMT markers (down-regulation of E-cadherin, nuclear TWIST, and up-regulation of vimentin, osteonectin, and smooth muscle actin). However, the data overall do not support a role for EMT in defining the phenotypic peculiarities of the majority of ILCs. Copyright © 2015 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Amy E McCart Reed
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia
| | - Jamie R Kutasovic
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia
| | - Ana C Vargas
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia
| | - Janani Jayanthan
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia
| | - Amel Al-Murrani
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia
| | - Lynne E Reid
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia
| | - Rachael Chambers
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia.,Sullivan Nicolaides Pathology, Taringa, 4068, QLD, Australia
| | - Leonard Da Silva
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia
| | - Lewis Melville
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia.,Pathology Queensland, The Royal Brisbane & Women's Hospital, Herston, 4029, QLD, Australia
| | - Elizabeth Evans
- Wesley Breast Clinic, Wesley Hospital, Auchenflower, 4066, QLD, Australia
| | - Alan Porter
- Wesley Breast Clinic, Wesley Hospital, Auchenflower, 4066, QLD, Australia
| | - David Papadimos
- Sullivan Nicolaides Pathology, Taringa, 4068, QLD, Australia
| | - Erik W Thompson
- Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, 4059, QLD, Australia.,University of Melbourne, Department of Surgery, St Vincent's Hospital, Melbourne, 3065, VIC, Australia
| | - Sunil R Lakhani
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia.,Pathology Queensland, The Royal Brisbane & Women's Hospital, Herston, 4029, QLD, Australia.,The University of Queensland, School of Medicine, Herston, 4006, QLD, Australia
| | - Peter T Simpson
- The University of Queensland, UQ Centre for Clinical Research, Herston, 4029, QLD, Australia.,The University of Queensland, School of Medicine, Herston, 4006, QLD, Australia
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Niit M, Hoskin V, Carefoot E, Geletu M, Arulanandam R, Elliott B, Raptis L. Cell-cell and cell-matrix adhesion in survival and metastasis: Stat3 versus Akt. Biomol Concepts 2015; 6:383-99. [DOI: 10.1515/bmc-2015-0022] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/23/2015] [Indexed: 01/05/2023] Open
Abstract
AbstractBoth cell-cell and cell-matrix adhesion are important for epithelial cell differentiation and function. Classical cadherins mediate cell to cell interactions and are potent activators of the signal transducer and activator of transcription (Stat3), thereby offering survival signaling. While the epithelial (E)-cadherin is required for cells to remain tightly associated within differentiated epithelial tissues, cadherin-11 promotes invasion and metastasis, preferentially to the bone. Cell adhesion to the extracellular matrix is mediated through the integrin receptors that bind to the focal adhesion kinase (FAK)/Src complex, thus activating downstream effectors such as Ras/Erk1/2 and PI3k/Akt, but not Stat3. Therefore, at high densities of cultured cells or in epithelial tissues, co-ordinate activation of the complementary cadherin/Stat3 and integrin/FAK pathways can greatly enhance survival and growth of tumor cells. In neoplastically transformed cells on the other hand, a variety of oncogenes including activated Src or receptor tyrosine kinases, activate both pathways. Still, most single-agent therapies directed against these signaling pathways have proven disappointing in the clinic. Combined targeting of the Src/FAK and Stat3 pathways with inhibitory drugs would be expected to have greater efficacy in inhibiting tumor cell survival, and enhancing sensitivity to conventional cytotoxic drugs for treatment of metastatic disease.
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Affiliation(s)
- Maximilian Niit
- 1Department of Pathology and Molecular Medicine, Cancer Research Institute, Queen’s University, Kingston, Ontario, Canada
| | | | | | - Mulu Geletu
- 3Department of Chemical and Physical Sciences, University of Toronto, Mississauga, William Davis 3126B Room 3023, 3359 Mississauga Rd., N Mississauga, Ontario, Canada
| | - Rozanne Arulanandam
- 4Department of Pathology and Molecular Medicine, Centre for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa K1H 8L6, Ontario, Canada
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Banerjee K, Resat H. Constitutive activation of STAT3 in breast cancer cells: A review. Int J Cancer 2015; 138:2570-8. [PMID: 26559373 DOI: 10.1002/ijc.29923] [Citation(s) in RCA: 441] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 10/29/2015] [Indexed: 12/19/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is constitutively activated in numerous cancer types, including more than 40% of breast cancers. In contrast to tight regulation of STAT3 as a latent transcription factor in normal cells, its signaling in breast cancer oncogenesis is multifaceted. Signaling through the IL-6/JAK/STAT3 pathway initiated by the binding of IL-6 family of cytokines (i.e., IL-6 and IL-11) to their receptors have been implicated in breast cancer development. Receptors with intrinsic kinase activity such as EGFR and VEGFR directly or indirectly induce STAT3 activation in various breast cancer types. Aberrant STAT3 signaling promotes breast tumor progression through deregulation of the expression of downstream target genes which control proliferation (Bcl-2, Bcl-xL, Survivin, Cyclin D1, c-Myc and Mcl-1), angiogenesis (Hif1α and VEGF) and epithelial-mesenchymal transition (Vimentin, TWIST, MMP-9 and MMP-7). These multiple modes of STAT3 regulation therefore make it a central linking point for a multitude of signaling processes. Extensive efforts to target STAT3 activation in breast cancer had no remarkable success in the past because the highly interconnected nature of STAT3 signaling introduces lack of selectivity in pathway identification for STAT3 targeted molecular therapies or because its role in tumorigenesis may not be as critical as it was thought. This review provides a full spectrum of STAT3's involvement in breast cancer by consolidating the knowledge about its role in breast cancer development at multiple levels: its differential regulation by different receptor signaling pathways, its downstream target genes, and modification of its transcriptional activity by its coregulatory transcription factors.
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Affiliation(s)
- Kasturi Banerjee
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA
| | - Haluk Resat
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA
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10
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Logan GJ, Dabbs DJ, Lucas PC, Jankowitz RC, Brown DD, Clark BZ, Oesterreich S, McAuliffe PF. Molecular drivers of lobular carcinoma in situ. Breast Cancer Res 2015; 17:76. [PMID: 26041550 PMCID: PMC4453073 DOI: 10.1186/s13058-015-0580-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Lobular carcinoma in situ (LCIS) is considered to be a risk factor for the development of invasive breast carcinoma, but it may also be a non-obligate precursor to invasive lobular carcinoma (ILC). Many LCIS lesions do not progress to ILC, and the molecular changes that are necessary for progression from LCIS to ILC are poorly understood. Disruption in the E-cadherin complex is the hallmark of lobular lesions, but other signaling molecules, such as PIK3CA and c-src, are consistently altered in LCIS. This review focuses on the molecular drivers of lobular carcinoma, a more complete understanding of which may give perspective on which LCIS lesions progress, and which will not, thus having immense clinical implications.
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Affiliation(s)
- Greg J Logan
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
| | - David J Dabbs
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Department of Pathology, Magee-Womens Hospital, Pittsburgh, PA, 15213, USA.
| | - Peter C Lucas
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Department of Pathology, Magee-Womens Hospital, Pittsburgh, PA, 15213, USA.
| | - Rachel C Jankowitz
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Division of Medical Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
| | - Daniel D Brown
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Division of Surgical Oncology, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
| | - Beth Z Clark
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Department of Pathology, Magee-Womens Hospital, Pittsburgh, PA, 15213, USA.
| | - Steffi Oesterreich
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
| | - Priscilla F McAuliffe
- Womens Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA. .,Division of Surgical Oncology, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
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11
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Peiró G, Ortiz-Martínez F, Gallardo A, Pérez-Balaguer A, Sánchez-Payá J, Ponce JJ, Tibau A, López-Vilaro L, Escuin D, Adrover E, Barnadas A, Lerma E. Src, a potential target for overcoming trastuzumab resistance in HER2-positive breast carcinoma. Br J Cancer 2014; 111:689-95. [PMID: 24937674 PMCID: PMC4134494 DOI: 10.1038/bjc.2014.327] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/07/2014] [Accepted: 05/13/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Src is a non-receptor tyrosine kinase involved in signalling and crosstalk between growth-promoting pathways. We aim to investigate the relationship of active Src in response to trastuzumab of HER2-positive breast carcinomas. METHODS We selected 278 HER2-positive breast cancer patients with (n=154) and without (n=124) trastuzumab treatment. We performed immunohistochemistry on paraffin-embedded tissue microarrays of active Src and several proteins involved in the PI3K/Akt/mTOR pathway, PIK3CA mutational analysis and in vitro studies (SKBR3 and BT474 cancer cells). The results were correlated with clinicopathological factors and patients' outcome. RESULTS Increased pSrc-Y416 was demonstrated in trastuzumab-resistant cells and in 37.8% of tumours that correlated positively with tumour size, necrosis, mitosis, metastasis to the central nervous system, p53 overexpression and MAPK activation but inversely with EGFR and p27. Univariate analyses showed an association of increased active Src with shorter survival in patients at early stage with HER2/hormone receptor-negative tumours treated with trastuzumab. CONCLUSIONS Src activation participates in trastuzumab mechanisms of resistance and indicates poor prognosis, mainly in HER2/hormone receptor-negative breast cancer. Therefore, blocking this axis may be beneficial in those patients.
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Affiliation(s)
- G Peiró
- 1] Department of Pathology, University General Hospital of Alicante, Pintor Baeza 12, Alicante 03010, Spain [2] Research Unit, University General Hospital of Alicante, Pintor Baeza 12, Alicante 03010, Spain
| | - F Ortiz-Martínez
- Research Unit, University General Hospital of Alicante, Pintor Baeza 12, Alicante 03010, Spain
| | - A Gallardo
- Department of Pathology, Clinica Girona, Joan Maragall 16, Girona 17003, Spain
| | - A Pérez-Balaguer
- Research Unit, University General Hospital of Alicante, Pintor Baeza 12, Alicante 03010, Spain
| | - J Sánchez-Payá
- Department of Epidemiology, University General Hospital of Alicante, Pintor Baeza 12, Alicante 03010, Spain
| | - J J Ponce
- Department of Clinical Oncology, University General Hospital of Alicante, Pintor Baeza 12, Alicante 03010, Spain
| | - A Tibau
- Department of Clinical Oncology, Hospital de la Santa Creu i Sant Pau, Sant Quintí 87-89, Barcelona 08041, Spain
| | - L López-Vilaro
- Department of Pathology, Hospital de la Santa Creu i Sant Pau, Sant Quintí 87-89, Barcelona 08041, Spain
| | - D Escuin
- Institut d'Investigacions Biomèdiques, Hospital de la Santa Creu i Sant Pau, Sant Quintí 87-89, Barcelona 08041, Spain Barcelona, Spain
| | - E Adrover
- Department of Clinical Oncology, University General Hospital of Albacete, Hermanos Falcó s/n, Albacete 02006, Spain
| | - A Barnadas
- Department of Clinical Oncology, Hospital de la Santa Creu i Sant Pau, Sant Quintí 87-89, Barcelona 08041, Spain
| | - E Lerma
- Department of Pathology, Hospital de la Santa Creu i Sant Pau, Sant Quintí 87-89, Barcelona 08041, Spain
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12
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Novel heterocyclic-fused pyrimidine derivatives: Synthesis, molecular modeling and pharmacological screening. Eur J Med Chem 2013; 69:498-507. [DOI: 10.1016/j.ejmech.2013.08.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Revised: 08/25/2013] [Accepted: 08/31/2013] [Indexed: 11/18/2022]
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13
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Kaye S, Aamdal S, Jones R, Freyer G, Pujade-Lauraine E, de Vries EGE, Barriuso J, Sandhu S, Tan DSW, Hartog V, Kuenen B, Ruijter R, Kristensen GB, Nyakas M, Barrett S, Burke W, Pietersma D, Stuart M, Emeribe U, Boven E. Phase I study of saracatinib (AZD0530) in combination with paclitaxel and/or carboplatin in patients with solid tumours. Br J Cancer 2012; 106:1728-34. [PMID: 22531637 PMCID: PMC3364128 DOI: 10.1038/bjc.2012.158] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: As a prelude to combination studies aimed at resistance reversal, this dose-escalation/dose-expansion study investigated the selective Src kinase inhibitor saracatinib (AZD0530) in combination with carboplatin and/or paclitaxel. Methods: Patients with advanced solid tumours received saracatinib once-daily oral tablets in combination with either carboplatin AUC 5 every 3 weeks (q3w), paclitaxel 175 mg m−2 q3w, paclitaxel 80 mg m−2 every 1 week (q1w), or carboplatin AUC 5 plus paclitaxel 175 mg m−2 q3w. The primary endpoint was safety/tolerability. Results: A total of 116 patients received saracatinib 125 (N=20), 175 (N=44), 225 (N=40), 250 (N=9), or 300 mg (N=3). There were no clear dose-related trends within each chemotherapy regimen group in number or severity of adverse events (AEs). However, combining all groups, the occurrence of grade ⩾3 asthenic AEs (all causality) was dose-related (125 mg, 10% 175 mg, 20% ⩾225 mg, 33%), and grade ⩾3 neutropenia occurred more commonly at doses ⩾225 mg. There was no evidence that saracatinib affected exposure to carboplatin or paclitaxel, or vice versa. Objective responses were seen in 5 out of 44 patients (11%) receiving carboplatin plus paclitaxel q3w, and 5 out of 24 (21%) receiving paclitaxel q1w. Conclusion: Saracatinib doses up to 175 mg with paclitaxel with/without carboplatin showed acceptable toxicity in most patients, and are suitable for further trials.
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Affiliation(s)
- S Kaye
- Drug Development Unit, Royal Marsden Hospital, Downs Road, Sutton, Surrey SM2 5PT, UK.
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14
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Anbalagan M, Moroz K, Ali A, Carrier L, Glodowski S, Rowan BG. Subcellular localization of total and activated Src kinase in African American and Caucasian breast cancer. PLoS One 2012; 7:e33017. [PMID: 22457730 PMCID: PMC3310861 DOI: 10.1371/journal.pone.0033017] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Accepted: 02/03/2012] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Src, a non-receptor tyrosine kinase is elevated in cancer with expression and activity correlated with cell proliferation, adhesion, survival, motility, metastasis and angiogenesis. There is limited data on Src expression and subcellular localization in breast cancer and no information about expression in racial/ethnic groups. METHODOLOGY/PRINCIPAL FINDINGS The present study evaluated Src expression, activity, and subcellular localization in triple negative breast cancer (TNBC) and ERα positive breast cancer (ER+BC), cancer tissue and adjacent normal epithelial ducts, and Caucasian and African American cases. 79 paraffin embedded breast carcinoma cases were obtained from Tulane University Hospital between 2007-2009. 39 cases represented TNBC (33-African Americans, 4-Caucasians, 2-unknowns) and 40 cases represented ER+BC (21-African Americans, 16-Caucasians, 3-unknowns). Immunohistochemistry was used to measure staining distribution and intensity of total Src and activated phospho-SrcY416 (p-Y416Src) in carcinoma tissue and adjacent normal mammary ducts. In TNBC and ER+BC, total Src was significantly higher in cancer compared to adjacent normal ducts (P<0.0001) in both cell membrane and cytoplasm. In membranes, p-Y416Src was elevated in cancer compared to normal ducts. Total Src in the tumor cytoplasm was significantly higher in TNBC compared to ER+BC (P = 0.0028); conversely, p-Y416Src in the tumor cell membranes was higher in TNBC compared to ER+BC (P = 0.0106). Comparison between African American (n = 21) and Caucasian ER+BC (n = 16) revealed no significant difference in expression and localization of total Src and p-Y416Src. TNBC cases positive for lymph node metastasis showed elevated membrane p-Y416Src compared to lymph node negative TNBC (P = 0.027). CONCLUSION/SIGNIFICANCE Total Src and p-Y416Src were expressed higher in cancer compared to adjacent normal ducts. Cytoplasmic total Src and membrane p-Y416Src were significantly higher in TNBC compared to ER+BC. TNBC cases with lymph node metastasis showed elevated membrane p-Y416Src. Taken together, Src was elevated in the membrane and cytoplasm of more aggressive TNBC.
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Affiliation(s)
- Muralidharan Anbalagan
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
| | - Krzysztof Moroz
- Section of Surgical Pathology and Cytopathology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
| | - Alaa Ali
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
| | - Latonya Carrier
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
| | - Seth Glodowski
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
| | - Brian G. Rowan
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
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15
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Fujisaka Y, Onozawa Y, Kurata T, Yasui H, Goto I, Yamazaki K, Machida N, Watanabe J, Shimada H, Shi X, Boku N. First report of the safety, tolerability, and pharmacokinetics of the Src kinase inhibitor saracatinib (AZD0530) in Japanese patients with advanced solid tumours. Invest New Drugs 2012; 31:108-14. [PMID: 22415795 DOI: 10.1007/s10637-012-9809-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 02/26/2012] [Indexed: 01/12/2023]
Abstract
BACKGROUND Saracatinib (AZD0530) is a selective, oral Src inhibitor that has demonstrated antitumour activity in preclinical studies. METHODS This open-label, dose-escalation, phase I study evaluated the safety and tolerability of saracatinib in Japanese patients with advanced solid tumours (clinicaltrials.gov NCT00704366). Patients received continuous once-daily oral dosing with saracatinib starting 7 days after a single dose in ascending dose cohorts until dose-limiting toxicity (DLT) or disease progression. Pharmacokinetics and efficacy were also evaluated. RESULTS A total of 12 patients received saracatinib at doses of 50 (n = 3), 125 (n = 6), and 175 mg (n = 3). Median durations of exposure were 65, 44, and 16 days in the 50, 125, and 175 mg cohorts, respectively. The most common adverse events were diarrhoea (67 %), nausea (67 %), decreased appetite (58 %), lymphopenia (50 %) and pyrexia (50 %). The most common grade ≥3 adverse events were leukopenia, lymphopenia, neutropenia, and haemoglobin decreased (all 17 %). DLTs occurred in two patients, both in the 175 mg cohort: grade 3 aspartate aminotransferase increased with grade 3 gamma-glutamyltransferase increased (n = 1); and grade 3 hypoxia (n = 1). Following a single dose, saracatinib median t(max) across the doses was 2-4 h, and thereafter plasma concentrations declined in a biphasic manner, with mean terminal half-life of approximately 45 h. Geometric mean saracatinib exposures were 0.8-2.1 times greater than those reported in Caucasian patients. The best response was stable disease (50 mg, n = 2; 125 mg, n = 1). CONCLUSIONS Saracatinib was tolerated in Japanese patients with advanced solid tumours at doses up to 125 mg.
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16
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Role of Src in breast cancer cell migration and invasion in a breast cell/bone-derived cell microenvironment. Breast Cancer Res Treat 2011; 133:201-14. [PMID: 21894461 DOI: 10.1007/s10549-011-1753-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Accepted: 08/18/2011] [Indexed: 10/17/2022]
Abstract
The preferential metastasis of breast cancer cells to bone comprises a complex set of events including homing and preferential growth, which may require unique factors produced by bone or other cells in the immediate microenvironment. In this study, an in vitro co-culture system composed of bone mesenchymal stem cells and breast cancer cell lines is used to examine the role of Src kinase on breast cancer cell migration and invasion in the presence of bone-derived cells. This research shows that Src kinase activity in breast cancer cell lines with either high or low levels of endogenous Src activity is increased by bone-derived cell-conditioned medium but not HS68 fibroblast-conditioned medium. Breast cancer cells exhibit enhanced migration in co-culture with bone-derived cells but not HS68 fibroblasts or no co-cultured cells. Inhibition of Src kinase activity using the inhibitors PP2 or saracatinib or using siRNA abrogates the preferential migration of the breast cancer cell lines in response to bone-derived cells. Inhibition of Src activity with saracatinib does not have any significant effect on breast cancer cell invasion in the presence of bone-derived cells. Factors are identified that are produced preferentially by bone-derived cells over HS68 cells that may impact breast cancer cell behavior. This research implicates Src kinase as an important effector of bone-derived cell signals on breast cancer cell migration.
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17
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Smith-Pearson PS, Greuber EK, Yogalingam G, Pendergast AM. Abl kinases are required for invadopodia formation and chemokine-induced invasion. J Biol Chem 2010; 285:40201-11. [PMID: 20937825 DOI: 10.1074/jbc.m110.147330] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The Abl tyrosine kinases, Abl and Arg, play a role in the regulation of the actin cytoskeleton by modulating cell-cell adhesion and cell motility. Deregulation of both the actin cytoskeleton and Abl kinases have been implicated in cancers. Abl kinase activity is elevated in a number of metastatic cancers and these kinases are activated downstream of several oncogenic growth factor receptor signaling pathways. However, the role of Abl kinases in regulation of the actin cytoskeleton during tumor progression and invasion remains elusive. Here we identify the Abl kinases as essential regulators of invadopodia assembly and function. We show that Abl kinases are activated downstream of the chemokine receptor, CXCR4, and are required for cancer cell invasion and matrix degradation induced by SDF1α, serum growth factors, and activated Src kinase. Moreover, Abl kinases are readily detected at invadopodia assembly sites and their inhibition prevents the assembly of actin and cortactin into organized invadopodia structures. We show that active Abl kinases form complexes with membrane type-1 matrix metalloproteinase (MT1-MMP), a critical invadopodia component required for matrix degradation. Further, loss of Abl kinase signaling induces internalization of MT1-MMP from the cell surface, promotes its accumulation in the perinuclear compartment and inhibits MT1-MMP tyrosine phosphorylation. Our findings reveal that Abl kinase signaling plays a critical role in invadopodia formation and function, and have far-reaching implications for the treatment of metastatic carcinomas.
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Affiliation(s)
- Pameeka S Smith-Pearson
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina 27710, USA
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18
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Papachristou DJ, Basdra EK, Papavassiliou AG. Bone metastases: molecular mechanisms and novel therapeutic interventions. Med Res Rev 2010; 32:611-36. [PMID: 20818675 DOI: 10.1002/med.20224] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
It has been long recognized that skeleton represents one of the most favored metastatic sites for common cancers like breast and prostate. During the last decade the molecular mechanisms that are responsible for the development of bone metastasis have been gradually illuminated. It appears that the bone microenvironment has a pivotal role in this process. Metastatic tumor cells interact with bone triggering a cascade of molecular events that produce osteolytic and/or osteoblastic phenomena. In this review, we summarize and discuss the most significant factors and signaling pathways implicated in bone colonization. Moreover, based on the recent literature and data, we foresee the need for designing novel agents that will efficiently disrupt these interactions among cancer cells and bone microenvironment, bringing hope for more effective treatments.
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Affiliation(s)
- Dionysios J Papachristou
- Department of Anatomy-Histology-Embryology, University of Patras School of Medicine, 26500, Patras, Greece
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19
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Soto-Guzman A, Navarro-Tito N, Castro-Sanchez L, Martinez-Orozco R, Salazar EP. Oleic acid promotes MMP-9 secretion and invasion in breast cancer cells. Clin Exp Metastasis 2010; 27:505-15. [PMID: 20617371 DOI: 10.1007/s10585-010-9340-1] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Accepted: 06/24/2010] [Indexed: 01/20/2023]
Abstract
Epidemiological and animal studies suggest an association between dietary fatty acids and an increase risk of developing breast cancer. Obesity, which is characterized by hyperlipidemia and an elevation of circulating free fatty acids (FFAs), is also associated with enhanced cancer risk. In breast cancer cells, the FFA oleic acid (OA) induces migration, proliferation, prolong survival, invasion, an increase in cellular Ca(2+) concentration, MEK1/2, ERK1/2, FAK and Src activation. However, the role of OA on MMP-9 secretion and invasion has not been studied in detail. We demonstrate here that stimulation of MDA-MB-231 breast cancer cells with 200 μM OA induces an increase on MMP-9 secretion through a PKC, Src, and EGFR-dependent pathway, as revealed by gelatin zymography assays. Furthermore, microtubule network mediates MMP-9 secretion induced by OA. In contrast, OA does not induce an increase on MMP-9 secretion in MCF10A cells, whereas it does not induce MMP-9 secretion in MCF12A mammary non-tumorigenic epithelial cells. In addition, OA induces invasion through an EGFR, Gi/Go proteins, MMPs, PKC and Src-dependent pathway, but it is not able to promote invasion in non-invasive MCF-7 breast cancer cells. In summary, our findings demonstrate that OA promotes an increase on MMP-9 secretion and invasion through a PKC, Src, and EGFR-dependent pathway in breast cancer cells.
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Affiliation(s)
- Adriana Soto-Guzman
- Departamento de Biologia Celular, Cinvestav-IPN, San Pedro Zacatenco, Mexico, DF, Mexico
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20
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Combining Src inhibitors and aromatase inhibitors: a novel strategy for overcoming endocrine resistance and bone loss. Eur J Cancer 2010; 46:2187-95. [PMID: 20471823 DOI: 10.1016/j.ejca.2010.04.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Revised: 03/18/2010] [Accepted: 04/14/2010] [Indexed: 11/21/2022]
Abstract
Aromatase inhibitors have largely replaced tamoxifen as the first-line treatment for postmenopausal women with metastatic, hormone receptor-positive (HR+) breast cancer. However, many patients develop clinical resistance with prolonged treatment, and oestrogen deprivation following aromatase inhibition can result in loss of bone mineral density. Furthermore, most patients with metastatic breast cancer develop bone metastases, and the resulting adverse skeletal-related events are a significant cause of patient morbidity. Src, a non-receptor tyrosine kinase, is a component of signalling pathways that regulate breast cancer cell proliferation, invasion and metastasis as well as osteoclast-mediated bone turnover. Preclinical evidence also suggests a role for Src in acquired endocrine resistance. As such, Src inhibition represents a logical strategy for the treatment of metastatic breast cancer. In vitro, combination therapy with Src inhibitors and endocrine agents, including aromatase inhibitors, has been shown to inhibit the proliferation and metastasis of both endocrine-responsive and endocrine-resistant breast cancer cell lines more effectively than either of the therapy alone. Src inhibition has also been shown to suppress osteoclast formation and activity. Combination therapy with aromatase inhibitors and Src inhibitors therefore represents a novel approach through which the development of both acquired resistance and bone pathology could be delayed. Data from clinical trials utilising such combinations will reveal if this strategy has the potential to improve patient outcomes.
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Abstract
Src is a non-receptor cytoplasmic tyrosine kinase which becomes activated following the stimulation of plasma membrane receptors including receptor tyrosine kinases and integrins, and is an indispensable player of multiple physiological homeostatic pathways. Once activated, Src is the starting point for several biochemical cascades that thereby propagate signals generated extracellularly along intracellular interconnected transduction pathways. Src transmits signals promoting cell survival and mitogenesis and, in addition, exerts a profound effect on the reorganization of the cytoskeleton and the adhesion systems that underpin cell migration and invasion. Because increased activity of Src is a frequent occurrence in many types of human cancer, and because there is evidence of a prominent role of Src in invasion and in other tumor progression-related events such as epithelial-mesenchymal transition (EMT) and development of metastasis, inhibitors targeting Src are being viewed as promising drugs for cancer therapy.
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Affiliation(s)
- Marcello Guarino
- Department of Pathology, Hospital of Vimercate, Vimercate, MB, Italy.
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22
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Rose AAN, Siegel PM. Emerging therapeutic targets in breast cancer bone metastasis. Future Oncol 2010; 6:55-74. [DOI: 10.2217/fon.09.138] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
In the past decade, our understanding of the molecular mechanisms that underlie breast cancer pathology and progression has dramatically improved. Using this knowledge, we have identified additional targets and developed novel therapeutic interventions in breast cancer. Together, these translational research efforts are helping to usher us into an age of personalized cancer therapy. Metastasis to bone is a common and devastating consequence of breast cancer. Bisphosphonates, which represent the current gold standard in bone metastasis therapies, are being improved with newer and more efficacious generations of these compounds being developed. Breast cancer growth in the bone requires activation of various signaling pathways in both cancer cells and stromal cells, including those that are stimulated by TGF-β and RANKL, and mediated through the Src tyrosine kinase. Bone cells and cancer cells alike express promising targets for therapeutic intervention, including Cathepsin K, CXCR4 and GPNMB. In this article we discuss the molecular mechanisms behind these pro-metastatic molecules and review the most recent findings in the clinical development of their associated targeted therapies.
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Affiliation(s)
- April AN Rose
- Departments of Medicine, Goodman Cancer Centre, McGill University, QC H3A 1A3, Canada
| | - Peter M Siegel
- Departments of Medicine and Biochemistry, Goodman Cancer Centre, McGill University, 1160 Pine Ave. West, Room 513, Montréal, QC H3A 1A3, Canada
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