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Vishnubalaji R, Alajez NM. Epigenetic regulation of triple negative breast cancer (TNBC) by TGF-β signaling. Sci Rep 2021; 11:15410. [PMID: 34326372 PMCID: PMC8322425 DOI: 10.1038/s41598-021-94514-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 07/12/2021] [Indexed: 01/06/2023] Open
Abstract
TGFβ signaling plays crucial role during development and cancer, however the role for TGFβ signaling in regulating the noncoding part of the human genome in triple negative breast cancer (TNBC) is still being unraveled. Herein, we provide the transcriptional landscape of TNBC in response to TGFβ activation and subsequent inhibition employing SB431542, selective TGFβ1 Receptor ALK5 Inhibitor. Our data revealed 72 commonly upregulated [fold change (FC) ≥ 2.0], including PLAU, TPM1, TAGLN, COL1A1, TGFBI, and SNAI1, and 53 downregulated (FC ≤ 2.0) protein coding genes in BT-549 and MDA-MB-231 models in response to TGFβ1 activation. Alignment to the geocode (V33) identified 41 upregulated (FC ≥ 2.0) and 22 downregulated (FC ≤ 2.0) long non-coding RNA (lncRNA) in response to TGFβ1 activation, which were inhibited by concurrent treatment with SB431542. To place our data from the in vitro models into their clinical context, we identified AC015909.1, AC013451.1, CYP1B1-AS1, AC004862.1, LINC01824, AL138828.1, B4GALT1-AS1, AL353751.1, AC090826.3, AC104695.4, ADORA2A-AS1, PTPRG-AS1, LINC01943, AC026954.3, TPM1-AS, ZFPM2-AS1, AC007362.1, AC112721.2, MALAT1, AL513314.2, AC112721.1, AC010343.3, LINC01711, and MAP3K2-DT lncRNA expression to positively correlate with TGFβ1 expression in a cohort of 360 TNBC patients. To provide mechanistic insight into lncRNA regulation by TGFβ signaling, SMAD2/3 ChIp-Seq data from BT-549 TNBC model retrieved from Gene Expression Omnibus (GEO) revealed direct binding of SMAD2/SMAD3 to the promoter of AC112721.1, AC112721.2, MALAT1, HHIP-AS1, LINC00472, and SLC7A11, suggesting their direct regulation by TGFβ1/SMAD2/SMAD3 pathway. Interestingly, AC112721.1, AC112721.2 exhibited higher expression in TNBC compared to normal breast tissue suggesting a possible role for those lncRNA in TNBC biology. Our miRNA analysis in the BT-549 model in response to exogenous TGFB1 revealed several affected miRNAs (2.0 ≤ FC ≤ 2.0), whose expression pattern was reversed in the presence of SB431542, suggesting those miRNA as plausible targets for TGFβ regulation. In particular, we observed hsa-miR-1275 to be downregulated in response to TGFB1 which was highly predicted to regulate PCDH1, FIBCD1, FXYD7, GDNF, STC1, EDN1, ZSWIM4, FGF1, PPP1R9B, NUAK1, PALM2AKAP2, IGFL3, and SPOCK1 whose expression were upregulated in response to TGFβ1 stimulus. On the other hand, hsa-miR-181b-5p was among the top upregulated miRNAs in response to TGFB1, which is also predicted to regulate CDKN1B, TNFRSF11B, SIM1, and ARSJ in the BT-549 model. Taken together, our data is the first to provide such in depth analysis of lncRNA and miRNA epigenetic changes in response to TGFβ signaling in TNBC.
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Affiliation(s)
- Radhakrishnan Vishnubalaji
- Translational Cancer and Immunity Center (TCIC), Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110, Doha, 00000, Qatar
| | - Nehad M Alajez
- Translational Cancer and Immunity Center (TCIC), Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110, Doha, 00000, Qatar. .,College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar.
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2
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Refaat S, Shamaa S, Elkhodary T, Atwan N, Ghazy H, Akl T, Abdelwahab K, Foda AAM, El-Badrawy A, Emarah Z. Prognostic significance of transforming growth factor β receptor II in clinical stage III breast cancer patients - a pilot study. Breast Dis 2021; 40:75-83. [PMID: 33579826 DOI: 10.3233/bd-201009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Transforming growth factor-β (TGFβ) has a dual function in breast cancer, having a tumor suppressor activity in early carcinomas while enhancing tumor metastasis in advanced breast carcinoma. Consequently, the prognostic role of TGFβ and its signaling cascade in breast cancer remain unclear. OBJECTIVE To investigate the relationship between TβRII expression, clinic-pathological characteristics, and prognostic significance of TβRII expression in clinical stage III breast cancer. METHODS Biopsy from the primary tumor was obtained from 30 newly diagnosed clinical stage III breast cancer patients before receiving any therapy. Expression of TβRII, ER, PR, Her2 and Ki-67 was assessed by immunohistochemistry. RESULTS TβRII expression was positive in 66.7% of cases and was significantly associated with advanced nodal stage and distant metastases. After a median follow up of 42.3 months, TβRII was associated with poor disease-free survival and it was an independent factor for predicting the poor outcome for breast cancer patients, especially in node positive tumors, ER/PR positive and Her2-negative tumors. CONCLUSIONS These findings suggest the usage of therapeutic drugs that target TGFβ in advanced breast cancer patients may be effective. Nevertheless, blockage of the tumor promoting and sparing of the tumor suppressor effect of TGFβ pathway should be taken into consideration. We suggest that these therapies might have more benefit in ER and PR positive tumors.
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Affiliation(s)
- Sherif Refaat
- Medical Oncology Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Sameh Shamaa
- Medical Oncology Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Tawfik Elkhodary
- Medical Oncology Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Nadia Atwan
- Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Pathology Department, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Hayam Ghazy
- Medical Oncology Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Tamer Akl
- Medical Oncology Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Khaled Abdelwahab
- Surgery Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Surgical Oncology Unit, Mansoura Oncology Center, Mansoura University, Mansoura, Egypt
| | - Abd AlRahman Mohammad Foda
- Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Pathology Department, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Adel El-Badrawy
- Radiology Department, Mansoura Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Ziad Emarah
- Medical Oncology Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
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3
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Oxidative stress and TGF-β1 induction by metformin in MCF-7 and MDA-MB-231 human breast cancer cells are accompanied with the downregulation of genes related to cell proliferation, invasion and metastasis. Pathol Res Pract 2020; 216:153135. [PMID: 32853957 DOI: 10.1016/j.prp.2020.153135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/21/2020] [Accepted: 07/23/2020] [Indexed: 12/13/2022]
Abstract
High doses of metformin induces oxidative stress (OS) and transforming growth factor β1 (TGF-β1) in breast cancer cells, which was associated with increased cancer stem cell population, local invasion, liver metastasis and treatment resistance. Considering the impact of TGF- β1 and OS in breast cancer and the interrelation between these two pathways, the objective of this work was to investigate the effects of consecutive metformin treatments, at a non-cytotoxic dosage, in TGF- β1 targets in MCF-7 and MDA-MB-231 cells. Cells were exposed to 6 μM of metformin for seven consecutive passages. Samples were collected to immunocytochemistry (evaluation of p53, Nf-кB, NRF2 and TGF-β1), biochemical (determination of lipoperoxidation, total thiols and nitric oxide/peroxynitrite levels) and molecular biology analyzes (microarray and Real-time quantitative array PCR). Microarray analysis confirmed alterations in genes related to OS and TGF-β1. Treatment interfered in several TGF-β1 target-genes. Metformin upregulated genes involved in OS generation and apoptosis, and downregulated genes associated with metastasis and epithelial mesenchymal transition in MCF-7 cells. In MDA-MB-231 cells, metformin downregulated genes involved with cell invasion, viability and proliferation. The results shows that even a non-cytotoxic dosage of metformin can promote a less aggressive profile of gene expression in breast cancer cells.
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Nakamura R, Oyama T, Inokuchi M, Ishikawa S, Hirata M, Kawashima H, Ikeda H, Dobashi Y, Ooi A. The relation between anti-TGBFR1 immunohistochemical reaction and low Ki67, small tumor size and high estrogen receptor expression in invasive breast cancer. Pathol Int 2020; 70:330-339. [PMID: 32103597 DOI: 10.1111/pin.12914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 02/04/2020] [Indexed: 11/28/2022]
Abstract
Most breast cancers are derived from the luminal epithelium, which composes the inside of the breast ductal structure. Ductal carcinoma in situ (DCIS) leads to invasive ductal carcinoma, but noncancerous intraductal proliferative lesions are also a risk factor for ductal carcinoma. The transforming growth factor beta (TGFB) signaling pathway behaves as a tumor suppressor in the early stage of cancer, and conversely as a tumor growth factor in invasive stages in several cancers. In this study, we performed immunohistochemistry with an antibody that detects the cytoplasmic region of TGFB receptor 1 (TGFBR1) and elucidated TGFBR1 protein expression in luminal epithelial cells of noncancerous breast ducts and in several cases of DCIS and invasive carcinoma. TGFBR1 expression was higher in noncancerous breast tissue than in cancerous tissue, and a difference in expression was also seen among histological subtypes. Comparing the expression level of TGFBR1 in cancer cells and clinico-pathological parameters, cases expressing low TGFBR1 tended to show low estrogen receptor expression, large tumor size (≥10 mm), and a high Ki67 labeling index. These data suggested that TGFBR1 protein expression may be related to the suppression of breast cancer cell growth.
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Affiliation(s)
- Ritsuko Nakamura
- Department of Molecular and Cellular Pathology, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - Takeru Oyama
- Department of Molecular and Cellular Pathology, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - Masafumi Inokuchi
- Department of Breast Oncology, Division of Cancer Medicine, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan.,Department of Breast and Endocrine Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - Satoko Ishikawa
- Department of Breast Oncology, Division of Cancer Medicine, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - Miki Hirata
- Department of Breast Oncology, Division of Cancer Medicine, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - Hiroko Kawashima
- Radiology Division, Kanazawa University Hospital, Ishikawa, Japan
| | - Hiroko Ikeda
- Diagnostic Pathology, Kanazawa University Hospital, Ishikawa, Japan
| | - Yoh Dobashi
- Department of Pathology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - Akishi Ooi
- Department of Molecular and Cellular Pathology, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
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Concomitant Expression of Prolactin Receptor and TGFβ Receptors in Breast Cancer: Association with Less Aggressive Phenotype and Favorable Patient Outcome. Int J Mol Sci 2019; 20:ijms20071640. [PMID: 30987013 PMCID: PMC6479350 DOI: 10.3390/ijms20071640] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/13/2019] [Accepted: 03/26/2019] [Indexed: 01/06/2023] Open
Abstract
The epithelial–mesenchymal transition (EMT) process is known to play an essential role in tumor progression, metastasis and resistance to therapy. This report evaluated the prognostic value of co-expression of the receptor for prolactin (PRLR), a suppressor of EMT, and the receptors for transforming growth factor β (TGFβRI and TGFβRII), an inducer of EMT, in association with different clinicopathological parameters using TMA of 102 breast cancer patients and publicly available data on breast cancer patients. Interestingly, the results revealed that malignant tissues had significantly lower levels of concomitant protein expression of these receptors in comparison to normal/benign breast tissue. In addition, a higher level of concomitant expression was also observed in less aggressive breast cancer phenotypes, including low grade tumors, luminal breast cancer subtype, and less advanced stages of the disease (lymph node negative and early stages). Moreover, the results also showed that the expression of a gene signature composed of PRLR/TGFβRI/TGFβRII correlates more with differentiated grade I tumors, and identified a subset of patients showing better survival outcomes evident in luminal B and HER-2 enriched molecular subtypes. Together, these results indicate that loss of the co-expression of PRLR, TGFβRI and TGFβRII is indicative of aggressiveness and poor patient survival outcomes in breast cancer.
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6
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Méndez-García LA, Nava-Castro KE, Ochoa-Mercado TDL, Palacios-Arreola MI, Ruiz-Manzano RA, Segovia-Mendoza M, Solleiro-Villavicencio H, Cázarez-Martínez C, Morales-Montor J. Breast Cancer Metastasis: Are Cytokines Important Players During Its Development and Progression? J Interferon Cytokine Res 2018; 39:39-55. [PMID: 30321090 DOI: 10.1089/jir.2018.0024] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In breast cancer, an uncontrolled cell proliferation leads to tumor formation and development of a multifactorial disease. Metastasis is a complex process that involves tumor spread to distant parts of the body from its original site. Metastatic dissemination represents the main physiopathology of cancer. Inter- and intracellular communication in all systems in vertebrates is mediated by cytokines, which are highly inducible, secretory proteins, produced not only by immune system cells, but also by endocrine and nervous system cells. It has become clear in recent years that cytokines, as well as their receptors are produced in the organisms under physiological and pathological conditions; recently, they have been closely related to breast cancer metastasis. The exact initiation process of breast cancer metastasis is unknown, although several hypotheses have emerged. In this study, we thoroughly reviewed the role of several cytokines in breast cancer metastasis. Data reviewed suggest that cytokines and growth factors are key players in the breast cancer metastasis induction. This knowledge must be considered with the aim to development of new therapeutic approaches to counter breast cancer metastasis.
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Affiliation(s)
| | - Karen Elizabeth Nava-Castro
- 2 Laboratorio de Genotoxicología y Medicina Ambientales, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, México DF, México
| | - Tania de Lourdes Ochoa-Mercado
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Margarita Isabel Palacios-Arreola
- 2 Laboratorio de Genotoxicología y Medicina Ambientales, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, México DF, México
| | - Rocío Alejandra Ruiz-Manzano
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Mariana Segovia-Mendoza
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Helena Solleiro-Villavicencio
- 4 Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, México DF, Mexico
| | - Cinthia Cázarez-Martínez
- 2 Laboratorio de Genotoxicología y Medicina Ambientales, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, México DF, México
| | - Jorge Morales-Montor
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
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7
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Leto G, Crescimanno M, Flandina C. On the role of cystatin C in cancer progression. Life Sci 2018; 202:152-160. [DOI: 10.1016/j.lfs.2018.04.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/17/2018] [Accepted: 04/11/2018] [Indexed: 02/06/2023]
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8
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Deregulation of Negative Controls on TGF-β1 Signaling in Tumor Progression. Cancers (Basel) 2018; 10:cancers10060159. [PMID: 29799477 PMCID: PMC6025439 DOI: 10.3390/cancers10060159] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 05/22/2018] [Accepted: 05/23/2018] [Indexed: 12/19/2022] Open
Abstract
The multi-functional cytokine transforming growth factor-β1 (TGF-β1) has growth inhibitory and anti-inflammatory roles during homeostasis and the early stages of cancer. Aberrant TGF-β activation in the late-stages of tumorigenesis, however, promotes development of aggressive growth characteristics and metastatic spread. Given the critical importance of this growth factor in fibrotic and neoplastic disorders, the TGF-β1 network is subject to extensive, multi-level negative controls that impact receptor function, mothers against decapentaplegic homolog 2/3 (SMAD2/3) activation, intracellular signal bifurcation into canonical and non-canonical pathways and target gene promotor engagement. Such negative regulators include phosphatase and tensin homologue (PTEN), protein phosphatase magnesium 1A (PPM1A), Klotho, bone morphogenic protein 7 (BMP7), SMAD7, Sloan-Kettering Institute proto-oncogene/ Ski related novel gene (Ski/SnoN), and bone morphogenetic protein and activin membrane-bound Inhibitor (BAMBI). The progression of certain cancers is accompanied by loss of expression, overexpression, mislocalization, mutation or deletion of several endogenous repressors of the TGF-β1 cascade, further modulating signal duration/intensity and phenotypic reprogramming. This review addresses how their aberrant regulation contributes to cellular plasticity, tumor progression/metastasis and reversal of cell cycle arrest and discusses the unexplored therapeutic value of restoring the expression and/or function of these factors as a novel approach to cancer treatment.
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Hachim MY, Hachim IY, Dai M, Ali S, Lebrun JJ. Differential expression of TGFβ isoforms in breast cancer highlights different roles during breast cancer progression. Tumour Biol 2018; 40:1010428317748254. [PMID: 29320969 DOI: 10.1177/1010428317748254] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
While TGFβ plays a critical role in tumor formation and progression, the role and contribution of its three different isoforms remain unclear. In this study, we aimed at elucidating the prognostic value of the TGFβ isoforms and assessed their expression levels in breast cancer patients at different stages of the disease. We found higher levels of TGFβ1 and TGFβ3 in cancer patients compared to normal tissues, with no significant changes in TGFβ2 expression. Similarly, TGFβ1 and TGFβ3, but not TGFβ2, showed higher expression levels in advanced lymph node-positive and metastatic tumors, suggesting different roles for the different isoforms in tumor progression and the metastatic process, while in the least aggressive molecular subtype (luminal A), expression of the three TGFβ isoforms significantly correlated with expression of both TGFβ receptors, such correlation only occurred between TGFβ1 and TGFβ3 and the TGFβ type II receptor (TβRII) in the highly aggressive basal-like subtype. Interestingly, a distinct and somehow opposite pattern was observed in HER-2 tumors, only showing significant association pattern between TGFβ2 and the TGFβ type I receptor (TβRI). Finally, the three TGFβ isoforms showed distinct association patterns with patient outcome depending on the different molecular subtype, highlighting context-dependent, differential prognostic values.
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Affiliation(s)
- Mahmood Y Hachim
- 1 Cancer Research Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada.,2 Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
| | - Ibrahim Y Hachim
- 1 Cancer Research Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Meiou Dai
- 1 Cancer Research Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Suhad Ali
- 1 Cancer Research Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Jean-Jacques Lebrun
- 1 Cancer Research Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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10
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Down-regulation of TGF-β RII expression is correlated with tumor growth and invasion in non-functioning pituitary adenomas. J Clin Neurosci 2018; 47:264-268. [DOI: 10.1016/j.jocn.2017.07.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 06/13/2017] [Accepted: 07/20/2017] [Indexed: 12/12/2022]
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11
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Hachim IY, Villatoro M, Canaff L, Hachim MY, Boudreault J, Haiub H, Ali S, Lebrun JJ. Transforming Growth Factor-beta Regulation of Ephrin Type-A Receptor 4 Signaling in Breast Cancer Cellular Migration. Sci Rep 2017; 7:14976. [PMID: 29101386 PMCID: PMC5670207 DOI: 10.1038/s41598-017-14549-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 10/11/2017] [Indexed: 12/16/2022] Open
Abstract
Breast cancer consists of a range of tumor subtypes with different clinical characteristics, disease prognosis, and treatment-response. Luminal breast cancer has the best prognosis while basal-like breast cancer (BLBC) represents the worst subtype. Transforming growth factor-beta (TGFβ) plays a prominent role in stimulating the migration and invasion of malignant breast cancer cells contributing to tumor progression. In this study, we identified the Ephrin type-A receptor 4 (EPHA4) as a novel target of TGFβ in breast cancer. Moreover, we show that TGFβ induction of EPHA4 gene expression is specific to basal-like tumors and is required for TGFβ-mediated cell migration. We further addressed the mechanism and found EPHA4 to be required for TGFβ-mediated cell migration in breast cancer through TGFβ-induced short term and long term activation of RhoGTPases. Finally, our data revealed a strong association between high EPHA4 expression and advanced tumor stage, aggressive BLBC molecular subtype and poor prognosis. Importantly, we found significant co-expression of EPHA4 and the TGFβ receptor type-2 (TGFβR2) in breast cancer subtypes associated with increased tumor relapse and drug resistance. Together, this study highlight the important role of the TGFβ/EPHA4 signaling axis in mediating tumor aggressiveness and poor patient survival in human breast cancer.
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Affiliation(s)
- Ibrahim Y. Hachim
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada
| | - Manuel Villatoro
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada
| | - Lucie Canaff
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada
| | - Mahmood Y. Hachim
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada ,grid.412789.10000 0004 4686 5317Sharjah Institute for Medical Research, University of, Sharjah, UAE
| | - Julien Boudreault
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada
| | - Halema Haiub
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada
| | - Suhad Ali
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada
| | - Jean-Jacques Lebrun
- 0000 0000 9064 4811grid.63984.30Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, QC H4A 3J1 Canada
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12
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Role of transforming growth factor-β1 in triple negative breast cancer patients. Int J Surg 2017; 45:72-76. [DOI: 10.1016/j.ijsu.2017.07.080] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/06/2017] [Accepted: 07/21/2017] [Indexed: 02/04/2023]
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