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Madaan V, Kollara A, Spaner D, Brown TJ. ISGylation enhances double-stranded RNA-induced interferon response and NFκB signaling in fallopian tube epithelial cells. J Biol Chem 2024:107686. [PMID: 39159817 DOI: 10.1016/j.jbc.2024.107686] [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: 02/22/2024] [Revised: 07/23/2024] [Accepted: 08/07/2024] [Indexed: 08/21/2024] Open
Abstract
Heritable mutations in BRCA1 associate with increased risk of high-grade serous tubo-ovarian cancer (HGSTOC). Non-genetic risk factors associated with this cancer, which arises from fallopian tube epithelial (FTE) cells, suggests a role for repetitive ovulation wherein FTE cells are exposed to inflammatory signaling molecules within follicular fluid. We previously reported increased NFκB and EGFR signaling in BRCA1-deficient primary FTE cells, with follicular fluid exposure further increasing abundance of interferon-stimulated gene (ISG) transcripts, including the ubiquitin-like protein ISG15 and other ISGylation pathway members. Both NFκB and type I interferon signaling are upregulated by stimulation of cGAS-STING or MDA5 and RIGI pattern recognition receptors (PRRs). Since some PRRs and their signal transduction pathway members are ISGylated, we tested the impact of ISG15 and ISGylation on IRF3 and NFκB signaling through cGAS-STING or RIGI and MDA5 activation. Expression of ISG15 or UBA7, the E1-like ISG15 activating enzyme, in immortalized FTE cells was disrupted by CRISPR gene editing. Activation of IRF3 by RIGI or MDA5 but not cGAS-STING was attenuated by loss of either ISG15 or UBA7 and this was reflected by a similar effect on NFκB activation and downstream targets. Loss of ISGylation decreased levels of both MDA5 and RIGI, with knock-down of RIGI but not MDA5, decreasing IRF3 and NFκB activation in parental cells. These finding indicate that ISGylation enhances the ability of dsRNA to activate cytokine release and pro-inflammatory signaling. Further work to explore ISGylation as a target for prevention of HGSTOC in BRCA1 mutation carriers is warranted.
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Affiliation(s)
- Vidushi Madaan
- Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, ON; Institute of Medical Sciences, University of Toronto, Toronto, ON
| | | | - David Spaner
- Institute of Medical Sciences, University of Toronto, Toronto, ON; Sunnybrook Health Sciences Research Institute, Toronto, ON
| | - Theodore J Brown
- Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, ON; Institute of Medical Sciences, University of Toronto, Toronto, ON; Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON.
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2
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Sutherland L, Lang J, Gonzalez-Juarbe N, Pickett BE. Secondary Analysis of Human Bulk RNA-Seq Dataset Suggests Potential Mechanisms for Letrozole Resistance in Estrogen-Positive (ER+) Breast Cancer. Curr Issues Mol Biol 2024; 46:7114-7133. [PMID: 39057065 PMCID: PMC11275280 DOI: 10.3390/cimb46070424] [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: 06/09/2024] [Revised: 06/26/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
Estrogen receptor-positive (ER+) breast cancer is common among postmenopausal women and is frequently treated with Letrozole, which inhibits aromatase from synthesizing estrogen from androgens. Decreased estrogen slows the growth of tumors and can be an effective treatment. The increase in Letrozole resistance poses a unique problem for patients. To better understand the underlying molecular mechanism(s) of Letrozole resistance, we reanalyzed transcriptomic data by comparing individuals who responded to Letrozole therapy (responders) to those who were resistant to treatment (non-responders). We identified SOX11 and S100A9 as two significant differentially expressed genes (DEGs) between these patient cohorts, with "PLK1 signaling events" being the most significant signaling pathway. We also identified PRDX4 and E2F8 gene products as being the top mechanistic transcriptional markers for ER+ treatment resistance. Many of the significant DEGs that we identified play a known role in ER+ breast cancer or other types of cancer, which partially validate our results. Several of the gene products we identified are novel in the context of ER+ breast cancer. Many of the genes that we identified warrant further research to elucidate the more specific molecular mechanisms of Letrozole resistance in this patient population and could potentially be used as prognostic markers with further wet lab validation. We anticipate that these findings could contribute to improved detection and therapeutic outcomes in aromatase-resistant ER+ breast cancer patients.
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Affiliation(s)
- Lincoln Sutherland
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA; (L.S.); (J.L.)
| | - Jacob Lang
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA; (L.S.); (J.L.)
| | - Norberto Gonzalez-Juarbe
- J. Craig Venter Institute, Rockville, MD 20850, USA;
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA
| | - Brett E. Pickett
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA; (L.S.); (J.L.)
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3
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Che S, Yan Z, Feng Y, Zhao H. Unveiling the intratumoral microbiota within cancer landscapes. iScience 2024; 27:109893. [PMID: 38799560 PMCID: PMC11126819 DOI: 10.1016/j.isci.2024.109893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
Recent advances in cancer research have unveiled a significant yet previously underappreciated aspect of oncology: the presence and role of intratumoral microbiota. These microbial residents, encompassing bacteria, fungi, and viruses within tumor tissues, have been found to exert considerable influence on tumor development, progression, and the efficacy of therapeutic interventions. This review aims to synthesize these groundbreaking discoveries, providing an integrated overview of the identification, characterization, and functional roles of intratumoral microbiota in cancer biology. We focus on elucidating the complex interactions between these microorganisms and the tumor microenvironment, highlighting their potential as novel biomarkers and therapeutic targets. The purpose of this review is to offer a comprehensive understanding of the microbial dimension in cancer, paving the way for innovative approaches in cancer diagnosis and treatment.
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Affiliation(s)
- Shusheng Che
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266005, Shandong, China
| | - Zhiyong Yan
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266005, Shandong, China
| | - Yugong Feng
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266005, Shandong, China
| | - Hai Zhao
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266005, Shandong, China
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Furth PA, Wang W, Kang K, Rooney BL, Keegan G, Muralidaran V, Zou X, Flaws JA. Esr1 but Not CYP19A1 Overexpression in Mammary Epithelial Cells during Reproductive Senescence Induces Pregnancy-Like Proliferative Mammary Disease Responsive to Anti-Hormonals. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:84-102. [PMID: 36464512 PMCID: PMC9768685 DOI: 10.1016/j.ajpath.2022.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/22/2022] [Accepted: 09/16/2022] [Indexed: 12/04/2022]
Abstract
Molecular-level analyses of breast carcinogenesis benefit from vivo disease models. Estrogen receptor 1 (Esr1) and cytochrome P450 family 19 subfamily A member 1 (CYP19A1) overexpression targeted to mammary epithelial cells in genetically engineered mouse models induces largely similar rates of proliferative mammary disease in prereproductive senescent mice. Herein, with natural reproductive senescence, Esr1 overexpression compared with CYP19A1 overexpression resulted in significantly higher rates of preneoplasia and cancer. Before reproductive senescence, Esr1, but not CYP19A1, overexpressing mice are tamoxifen resistant. However, during reproductive senescence, Esr1 mice exhibited responsiveness. Both Esr1 and CYP19A1 are responsive to letrozole before and after reproductive senescence. Gene Set Enrichment Analyses of RNA-sequencing data sets showed that higher disease rates in Esr1 mice were accompanied by significantly higher expression of cell proliferation genes, including members of prognostic platforms for women with early-stage hormone receptor-positive disease. Tamoxifen and letrozole exposure induced down-regulation of these genes and resolved differences between the two models. Both Esr1 and CYP19A1 overexpression induced abnormal developmental patterns of pregnancy-like gene expression. This resolved with progression through reproductive senescence in CYP19A1 mice, but was more persistent in Esr1 mice, resolving only with tamoxifen and letrozole exposure. In summary, genetically engineered mouse models of Esr1 and CYP19A1 overexpression revealed a diversion of disease processes resulting from the two distinct molecular pathophysiological mammary gland-targeted intrusions into estrogen signaling during reproductive senescence.
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Affiliation(s)
- Priscilla A Furth
- Department of Oncology, Georgetown University, Washington, District of Columbia; Department of Medicine, Georgetown University, Washington, District of Columbia.
| | - Weisheng Wang
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Keunsoo Kang
- Department of Microbiology, College of Science and Technology, Dankook University, Cheonan, Republic of Korea
| | - Brendan L Rooney
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Grace Keegan
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Vinona Muralidaran
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Xiaojun Zou
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois Urbana-Champaign, Urbana, Illinois
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5
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Furth PA, Wang W, Kang K, Rooney BL, Keegan G, Muralidaran V, Wong J, Shearer C, Zou X, Flaws JA. Overexpression of Estrogen Receptor α in Mammary Glands of Aging Mice Is Associated with a Proliferative Risk Signature and Generation of Estrogen Receptor α-Positive Mammary Adenocarcinomas. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:103-120. [PMID: 36464513 PMCID: PMC9768686 DOI: 10.1016/j.ajpath.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/29/2022] [Accepted: 09/28/2022] [Indexed: 12/03/2022]
Abstract
Age is a risk factor for human estrogen receptor-positive breast cancer, with highest prevalence following menopause. While transcriptome risk profiling is available for human breast cancers, it is not yet developed for prognostication for primary or secondary breast cancer development utilizing at-risk breast tissue. Both estrogen receptor α (ER) and aromatase overexpression have been linked to human breast cancer. Herein, conditional genetically engineered mouse models of estrogen receptor 1 (Esr1) and cytochrome P450 family 19 subfamily A member 1 (CYP19A1) were used to show that induction of Esr1 overexpression just before or with reproductive senescence and maintained through age 30 months resulted in significantly higher prevalence of estrogen receptor-positive adenocarcinomas than CYP19A1 overexpression. All adenocarcinomas tested showed high percentages of ER+ cells. Mammary cancer development was preceded by a persistent proliferative transcriptome risk signature initiated within 1 week of transgene induction that showed parallels to the Prosigna/Prediction Analysis of Microarray 50 human prognostic signature for early-stage human ER+ breast cancer. CYP19A1 mice also developed ER+ mammary cancers, but histology was more divided between adenocarcinoma and adenosquamous, with one ER- adenocarcinoma. Results demonstrate that, like humans, generation of ER+ adenocarcinoma in mice was facilitated by aging mice past the age of reproductive senescence. Esr1 overexpression was associated with a proliferative estrogen pathway-linked signature that preceded appearance of ER+ mammary adenocarcinomas.
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Affiliation(s)
- Priscilla A Furth
- Department of Oncology, Georgetown University, Washington, District of Columbia; Department of Medicine, Georgetown University, Washington, District of Columbia.
| | - Weisheng Wang
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Keunsoo Kang
- Department of Microbiology, College of Science and Technology, Dankook University, Cheonan, Republic of Korea
| | - Brendan L Rooney
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Grace Keegan
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Vinona Muralidaran
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Justin Wong
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Charles Shearer
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Xiaojun Zou
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois Urbana-Champaign, Urbana, Illinois
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6
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Rooney BL, Rooney BP, Muralidaran V, Wang W, Furth PA. Mouse Mammary Gland Whole Mount Density Assessment across Different Morphologies Using a Bifurcated Program for Image Processing. THE AMERICAN JOURNAL OF PATHOLOGY 2022; 192:1407-1417. [PMID: 36115719 PMCID: PMC9552022 DOI: 10.1016/j.ajpath.2022.06.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/24/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Mammographic density is associated with increased breast cancer risk. Conventional visual assessment of murine mouse models does not include quantified total density analysis. A bifurcated method was sufficient to obtain relative density scores on a broad range of two-dimensional whole mount images that contained both normal and abnormal findings. Image processing techniques, including a ridge operator and a gaussian denoising method, were used to isolate background away from mammary epithelium and use mean pixel intensity to represent mammary density on genetically engineered mouse models for breast cancer in mice 4 to 29 months of age. The bifurcated method allowed for application of an optimal image processing approach for the structural elements present in the whole mount images. Gaussian denoising was the optimal approach when more dense lobular growth and tertiary branching dominate and a ridge operator when epithelial growth was more sparse and secondary branching was the more dominant structural feature. The two processing approaches were combined in a single experimental flow program using an initial image density measurement as the decision point between the two approaches. Higher density was associated with lobular growth, tertiary branching, fibrotic stroma, and presence of cancer. The significance of the study is development of a readily accessible program for digital assessment of mammary gland whole mount density across a range of mammary gland morphologies.
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Affiliation(s)
| | - Brian P Rooney
- Department of Oncology, Georgetown University, Washington, DC
| | | | - Weisheng Wang
- Department of Oncology, Georgetown University, Washington, DC
| | - Priscilla A Furth
- Department of Oncology, Georgetown University, Washington, DC; Department of Medicine, Georgetown University, Washington, DC.
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7
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Huang H, Zhou J, Chen H, Li J, Zhang C, Jiang X, Ni C. The immunomodulatory effects of endocrine therapy in breast cancer. J Exp Clin Cancer Res 2021; 40:19. [PMID: 33413549 PMCID: PMC7792133 DOI: 10.1186/s13046-020-01788-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/24/2020] [Indexed: 02/08/2023] Open
Abstract
Endocrine therapies with SERMs (selective estrogen receptor modulators) or SERDs (selective estrogen receptor downregulators) are standard therapies for patients with estrogen receptor (ER)-positive breast cancer. Multiple small molecule inhibitors targeting the PI3K-AKT-mTOR pathway or CDK4/6 have been developed to be used in combination with anti-estrogen drugs to overcome endocrine resistance. In addition to their direct antitumor effects, accumulating evidence has revealed the tumor immune microenvironment (TIM)-modulating effects of these therapeutic strategies, which have not been properly acknowledged previously. The immune microenvironment of breast tumors plays a crucial role in tumor development, metastasis and treatment response to endocrine therapy and immunotherapy. Therefore, in our current work, we comprehensively review the immunomodulatory effect of endocrine therapy and discuss its potential applications in combination with immune checkpoint inhibitors in breast cancer treatment.
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Affiliation(s)
- Huanhuan Huang
- Department of Breast Surgery, Second Affiliated Hospital Zhejiang University, Zhejiang, 310009, Hangzhou, China
- Key Laboratory of Tumour Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated Hospital Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Jun Zhou
- Department of Breast Surgery, Affiliated Hangzhou First People's Hospital Zhejiang University, Zhejiang, 310006, Hangzhou, China
| | - Hailong Chen
- Department of Breast Surgery, Second Affiliated Hospital Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Jiaxin Li
- Department of Breast Surgery, Second Affiliated Hospital Zhejiang University, Zhejiang, 310009, Hangzhou, China
- Key Laboratory of Tumour Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated Hospital Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Chao Zhang
- Department of Anatomy School of Medicine, Zhejiang University, Zhejiang, 310058, Hangzhou, China
| | - Xia Jiang
- School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610064, China.
- Department of Clinical Neuroscience Centre for Molecular Medicine, Karolinska Institute, Stockholm, 17176, Sweden.
| | - Chao Ni
- Department of Breast Surgery, Second Affiliated Hospital Zhejiang University, Zhejiang, 310009, Hangzhou, China.
- Key Laboratory of Tumour Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated Hospital Zhejiang University, Zhejiang, 310009, Hangzhou, China.
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8
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Furth PA. Peroxisome proliferator-activated receptor gamma and BRCA1. Endocr Relat Cancer 2019; 26:R73-R79. [PMID: 30444720 PMCID: PMC6494719 DOI: 10.1530/erc-18-0449] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 01/02/2023]
Abstract
Peroxisome proliferator-activated receptor gamma agonists have been proposed as breast cancer preventives. Individuals who carry a mutated copy of BRCA1, DNA repair-associated gene, are at increased risk for development of breast cancer. Published data in the field suggest there could be interactions between peroxisome proliferator-activated receptor gamma and BRCA1 that could influence the activity of peroxisome proliferator-activated receptor gamma agonists for prevention. This review explores these possible interactions between peroxisome proliferator-activated receptor gamma, peroxisome proliferator-activated receptor gamma agonists and BRCA1 and discusses feasible experimental directions to provide more definitive information on the potential connections.
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Affiliation(s)
- Priscilla A Furth
- Departments of Oncology and Medicine, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
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9
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Walter KR, Ford ME, Gregoski MJ, Kramer RM, Knight KD, Spruill L, Nogueira LM, Krisanits BA, Phan V, La Rue AC, Lilly MB, Ambs S, Chan K, Turner TF, Varner H, Singh S, Uribarri J, Garrett-Mayer E, Armeson KE, Hilton EJ, Clair MJ, Taylor MH, Abbott AM, Findlay VJ, Peterson LL, Magwood G, Turner DP. Advanced glycation end products are elevated in estrogen receptor-positive breast cancer patients, alter response to therapy, and can be targeted by lifestyle intervention. Breast Cancer Res Treat 2018; 173:559-571. [PMID: 30368741 PMCID: PMC6394600 DOI: 10.1007/s10549-018-4992-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/03/2018] [Indexed: 12/18/2022]
Abstract
Purpose Lifestyle factors associated with personal behavior can alter tumor-associated biological pathways and thereby increase cancer risk, growth, and disease recurrence. Advanced glycation end products (AGEs) are reactive metabolites produced endogenously as a by-product of normal metabolism. A Western lifestyle also promotes AGE accumulation in the body which is associated with disease phenotypes through modification of the genome, protein crosslinking/dysfunction, and aberrant cell signaling. Given the links between lifestyle, AGEs, and disease, we examined the association between dietary-AGEs and breast cancer. Methods We evaluated AGE levels in bio-specimens from estrogen receptor-positive (ER+) and estrogen receptor-negative (ER−) breast cancer patients, examined their role in therapy resistance, and assessed the ability of lifestyle intervention to reduce circulating AGE levels in ER+ breast cancer survivors. Results An association between ER status and AGE levels was observed in tumor and serum samples. AGE treatment of ER+ breast cancer cells altered ERα phosphorylation and promoted resistance to tamoxifen therapy. In a proof of concept study, physical activity and dietary intervention was shown to be viable options for reducing circulating AGE levels in breast cancer survivors. Conclusions There is a potential prognostic and therapeutic role for lifestyle derived AGEs in breast cancer. Given the potential benefits of lifestyle intervention on incidence and mortality, opportunities exist for the development of community health and nutritional programs aimed at reducing AGE exposure in order to improve breast cancer prevention and treatment outcomes. Electronic supplementary material The online version of this article (10.1007/s10549-018-4992-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katherine R Walter
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Marvella E Ford
- Department of Public Health Sciences, MUSC, Charleston, SC, USA. .,Hollings Cancer Center, MUSC, Charleston, SC, USA. .,James E. Clyburn Research Center Medical University of South Carolina, Charleston, SC, 29425, USA.
| | - Mathew J Gregoski
- Department of Exercise Science, College of Arts and Sciences, Campbell University, Buies Creek, NC, USA
| | | | | | - Laura Spruill
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Lourdes M Nogueira
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Bradley A Krisanits
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Van Phan
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Amanda C La Rue
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA.,Hollings Cancer Center, MUSC, Charleston, SC, USA.,Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC, USA
| | - Michael B Lilly
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Stefan Ambs
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - King Chan
- Cancer Research Technology Program, Leidos Biomedical Research, Frederick National Laboratory, Frederick, MD, USA
| | | | - Heidi Varner
- Department of Public Health Sciences, MUSC, Charleston, SC, USA
| | - Shweta Singh
- Department of Public Health Sciences, MUSC, Charleston, SC, USA
| | - Jaime Uribarri
- Department of Medicine/Renal Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Elizabeth Garrett-Mayer
- Department of Public Health Sciences, MUSC, Charleston, SC, USA.,Hollings Cancer Center, MUSC, Charleston, SC, USA
| | - Kent E Armeson
- Department of Public Health Sciences, MUSC, Charleston, SC, USA.,Hollings Cancer Center, MUSC, Charleston, SC, USA
| | - Ebony J Hilton
- Department of Anesthesia and Perioperative Medicine, MUSC, Charleston, SC, USA
| | - Mark J Clair
- Department of Medicine, Division of Cardiology, MUSC, Charleston, SC, USA
| | - Marian H Taylor
- Department of Medicine, Division of Cardiology, MUSC, Charleston, SC, USA
| | | | - Victoria J Findlay
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA.,Department of Public Health Sciences, MUSC, Charleston, SC, USA
| | | | | | - David P Turner
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina (MUSC), Charleston, SC, USA. .,Department of Public Health Sciences, MUSC, Charleston, SC, USA. .,James E. Clyburn Research Center Medical University of South Carolina, Charleston, SC, 29425, USA.
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10
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Post AEM, Smid M, Nagelkerke A, Martens JWM, Bussink J, Sweep FCGJ, Span PN. Interferon-Stimulated Genes Are Involved in Cross-resistance to Radiotherapy in Tamoxifen-Resistant Breast Cancer. Clin Cancer Res 2018; 24:3397-3408. [PMID: 29661777 DOI: 10.1158/1078-0432.ccr-17-2551] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 03/07/2018] [Accepted: 04/10/2018] [Indexed: 11/16/2022]
Abstract
Purpose: Treatment resistance is the main cause of adverse disease outcome in breast cancer patients. Here, we aimed to investigate common features in tamoxifen-resistant and radioresistant breast cancer, as tamoxifen-resistant breast cancer cells are cross-resistant to irradiation in vitroExperimental Design: RNA sequencing of tamoxifen-resistant and radioresistant breast cancer cells was performed and validated by quantitative PCR. Pathways were further investigated in vitro and in breast cancer patient cohorts to establish their relation with treatment resistance.Results: Both tamoxifen-resistant and radioresistant breast cancer cells had increased expression levels of genes involved in type I IFN signaling compared with nonresistant cells. IFN-stimulated genes (ISG) were induced in a dose-dependent and time-dependent manner after tamoxifen treatment and irradiation. Tamoxifen treatment also led to ssDNA presence in the cytoplasm, which is known to induce expression of ISGs, a phenomenon that has already been described for irradiation. Moreover, in a breast cancer patient cohort, high expression levels of ISGs were found in the primary tumor in around half of the patients. This was associated with a tumor-infiltrating lymphocyte (TIL) expression signature, although the ISGs were also expressed by the tumor cells themselves. Importantly, the expression of ISGs correlated with outcome in breast cancer patients treated with adjuvant tamoxifen or radiotherapy, but not in systemically untreated patients or chemotherapy-treated patients.Conclusions: Our data indicate that expression of ISGs by tumor cells is involved in acquired, treatment-induced resistance to tamoxifen and radiotherapy, and might play a role in intrinsic resistance via interaction with TILs. Clin Cancer Res; 24(14); 3397-408. ©2018 AACR.
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Affiliation(s)
- Annemarie E M Post
- Department of Radiation Oncology, Radiotherapy and OncoImmunology Laboratory, Radboud university medical center, Nijmegen, the Netherlands. .,Department of Laboratory Medicine, Radboud university medical center, Nijmegen, the Netherlands
| | - Marcel Smid
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Anika Nagelkerke
- Department of Radiation Oncology, Radiotherapy and OncoImmunology Laboratory, Radboud university medical center, Nijmegen, the Netherlands.,Department of Laboratory Medicine, Radboud university medical center, Nijmegen, the Netherlands
| | - John W M Martens
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Johan Bussink
- Department of Radiation Oncology, Radiotherapy and OncoImmunology Laboratory, Radboud university medical center, Nijmegen, the Netherlands
| | - Fred C G J Sweep
- Department of Laboratory Medicine, Radboud university medical center, Nijmegen, the Netherlands
| | - Paul N Span
- Department of Radiation Oncology, Radiotherapy and OncoImmunology Laboratory, Radboud university medical center, Nijmegen, the Netherlands
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11
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Shajahan-Haq AN, Boca SM, Jin L, Bhuvaneshwar K, Gusev Y, Cheema AK, Demas DD, Raghavan KS, Michalek R, Madhavan S, Clarke R. EGR1 regulates cellular metabolism and survival in endocrine resistant breast cancer. Oncotarget 2017; 8:96865-96884. [PMID: 29228577 PMCID: PMC5722529 DOI: 10.18632/oncotarget.18292] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 05/17/2017] [Indexed: 12/12/2022] Open
Abstract
About 70% of all breast cancers are estrogen receptor alpha positive (ER+; ESR1). Many are treated with antiestrogens. Unfortunately, de novo and acquired resistance to antiestrogens is common but the underlying mechanisms remain unclear. Since growth of cancer cells is dependent on adequate energy and metabolites, the metabolomic profile of endocrine resistant breast cancers likely contains features that are deterministic of cell fate. Thus, we integrated data from metabolomic and transcriptomic analyses of ER+ MCF7-derived breast cancer cells that are antiestrogen sensitive (LCC1) or resistant (LCC9) that resulted in a gene-metabolite network associated with EGR1 (early growth response 1). In human ER+ breast tumors treated with endocrine therapy, higher EGR1 expression was associated with a more favorable prognosis. Mechanistic studies showed that knockdown of EGR1 inhibited cell growth in both cells and EGR1 overexpression did not affect antiestrogen sensitivity. Comparing metabolite profiles in LCC9 cells following perturbation of EGR1 showed interruption of lipid metabolism. Tolfenamic acid, an anti-inflammatory drug, decreased EGR1 protein levels and synergized with antiestrogens in inhibiting cell proliferation in LCC9 cells. Collectively, these findings indicate that EGR1 is an important regulator of breast cancer cell metabolism and is a promising target to prevent or reverse endocrine resistance.
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Affiliation(s)
- Ayesha N Shajahan-Haq
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Simina M Boca
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA.,Innovation Center for Biomedical Informatics (ICBI), Georgetown University Medical Center, Washington, DC, USA.,Department of Biostatistics, Bioinformatics and Biomathematics, Georgetown University, Washington, DC, USA
| | - Lu Jin
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Krithika Bhuvaneshwar
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA.,Innovation Center for Biomedical Informatics (ICBI), Georgetown University Medical Center, Washington, DC, USA
| | - Yuriy Gusev
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA.,Innovation Center for Biomedical Informatics (ICBI), Georgetown University Medical Center, Washington, DC, USA
| | - Amrita K Cheema
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Diane D Demas
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Kristopher S Raghavan
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | | | - Subha Madhavan
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA.,Innovation Center for Biomedical Informatics (ICBI), Georgetown University Medical Center, Washington, DC, USA
| | - Robert Clarke
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
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12
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Lui AJ, Geanes ES, Ogony J, Behbod F, Marquess J, Valdez K, Jewell W, Tawfik O, Lewis-Wambi J. IFITM1 suppression blocks proliferation and invasion of aromatase inhibitor-resistant breast cancer in vivo by JAK/STAT-mediated induction of p21. Cancer Lett 2017; 399:29-43. [PMID: 28411130 DOI: 10.1016/j.canlet.2017.04.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/23/2017] [Accepted: 04/04/2017] [Indexed: 12/19/2022]
Abstract
Interferon induced transmembrane protein 1 (IFITM1) belongs to a family of interferon stimulated genes (ISGs) that is associated with tumor progression and DNA damage resistance; however, its role in endocrine resistance is not known. Here, we correlate IFITM1 expression with clinical stage and poor response to endocrine therapy in a tissue microarray consisting of 94 estrogen receptor (ER)-positive breast tumors. IFITM1 overexpression is confirmed in the AI-resistant MCF-7:5C cell line and not found in AI-sensitive MCF-7 cells. In this study, the orthotopic (mammary fat pad) and mouse mammary intraductal (MIND) models of breast cancer are used to assess tumor growth and invasion in vivo. Lentivirus-mediated shRNA knockdown of IFITM1 in AI-resistant MCF-7:5C cells diminished tumor growth and invasion and induced cell death, whereas overexpression of IFITM1 in wild-type MCF-7 cells promoted estrogen-independent growth and enhanced their aggressive phenotype. Mechanistic studies indicated that loss of IFITM1 in MCF-7:5C cells markedly increased p21 transcription, expression and nuclear localization which was mediated by JAK/STAT activation. These findings suggest IFITM1 overexpression contributes to breast cancer progression and that targeting IFITM1 may be therapeutically beneficial to patients with endocrine-resistant disease.
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Affiliation(s)
- Asona J Lui
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Eric S Geanes
- Department of Cancer Biology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Joshua Ogony
- Department of Cancer Biology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Fariba Behbod
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Jordan Marquess
- University of Kansas Medical Center School of Medicine, USA.
| | - Kelli Valdez
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - William Jewell
- The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Ossama Tawfik
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, USA.
| | - Joan Lewis-Wambi
- Department of Cancer Biology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
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13
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Spira A, Yurgelun MB, Alexandrov L, Rao A, Bejar R, Polyak K, Giannakis M, Shilatifard A, Finn OJ, Dhodapkar M, Kay NE, Braggio E, Vilar E, Mazzilli SA, Rebbeck TR, Garber JE, Velculescu VE, Disis ML, Wallace DC, Lippman SM. Precancer Atlas to Drive Precision Prevention Trials. Cancer Res 2017; 77:1510-1541. [PMID: 28373404 PMCID: PMC6681830 DOI: 10.1158/0008-5472.can-16-2346] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 01/20/2017] [Accepted: 01/20/2017] [Indexed: 02/07/2023]
Abstract
Cancer development is a complex process driven by inherited and acquired molecular and cellular alterations. Prevention is the holy grail of cancer elimination, but making this a reality will take a fundamental rethinking and deep understanding of premalignant biology. In this Perspective, we propose a national concerted effort to create a Precancer Atlas (PCA), integrating multi-omics and immunity - basic tenets of the neoplastic process. The biology of neoplasia caused by germline mutations has led to paradigm-changing precision prevention efforts, including: tumor testing for mismatch repair (MMR) deficiency in Lynch syndrome establishing a new paradigm, combinatorial chemoprevention efficacy in familial adenomatous polyposis (FAP), signal of benefit from imaging-based early detection research in high-germline risk for pancreatic neoplasia, elucidating early ontogeny in BRCA1-mutation carriers leading to an international breast cancer prevention trial, and insights into the intricate germline-somatic-immunity interaction landscape. Emerging genetic and pharmacologic (metformin) disruption of mitochondrial (mt) respiration increased autophagy to prevent cancer in a Li-Fraumeni mouse model (biology reproduced in clinical pilot) and revealed profound influences of subtle changes in mt DNA background variation on obesity, aging, and cancer risk. The elaborate communication between the immune system and neoplasia includes an increasingly complex cellular microenvironment and dynamic interactions between host genetics, environmental factors, and microbes in shaping the immune response. Cancer vaccines are in early murine and clinical precancer studies, building on the recent successes of immunotherapy and HPV vaccine immune prevention. Molecular monitoring in Barrett's esophagus to avoid overdiagnosis/treatment highlights an important PCA theme. Next generation sequencing (NGS) discovered age-related clonal hematopoiesis of indeterminate potential (CHIP). Ultra-deep NGS reports over the past year have redefined the premalignant landscape remarkably identifying tiny clones in the blood of up to 95% of women in their 50s, suggesting that potentially premalignant clones are ubiquitous. Similar data from eyelid skin and peritoneal and uterine lavage fluid provide unprecedented opportunities to dissect the earliest phases of stem/progenitor clonal (and microenvironment) evolution/diversity with new single-cell and liquid biopsy technologies. Cancer mutational signatures reflect exogenous or endogenous processes imprinted over time in precursors. Accelerating the prevention of cancer will require a large-scale, longitudinal effort, leveraging diverse disciplines (from genetics, biochemistry, and immunology to mathematics, computational biology, and engineering), initiatives, technologies, and models in developing an integrated multi-omics and immunity PCA - an immense national resource to interrogate, target, and intercept events that drive oncogenesis. Cancer Res; 77(7); 1510-41. ©2017 AACR.
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Affiliation(s)
- Avrum Spira
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
- Department of Pathology and Bioinformatics, Boston University School of Medicine, Boston, Massachusetts
| | - Matthew B Yurgelun
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ludmil Alexandrov
- Theoretical Division, Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico
| | - Anjana Rao
- Division of Signaling and Gene Expression, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Rafael Bejar
- Department of Medicine, Moores Cancer Center, University of California San Diego, La Jolla, California
| | - Kornelia Polyak
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Marios Giannakis
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ali Shilatifard
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Olivera J Finn
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Madhav Dhodapkar
- Department of Hematology and Immunology, Yale Cancer Center, New Haven, Connecticut
| | - Neil E Kay
- Department of Hematology, Mayo Clinic Hospital, Rochester, Minnesota
| | - Esteban Braggio
- Department of Hematology, Mayo Clinic Hospital, Phoenix, Arizona
| | - Eduardo Vilar
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sarah A Mazzilli
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
- Department of Pathology and Bioinformatics, Boston University School of Medicine, Boston, Massachusetts
| | - Timothy R Rebbeck
- Division of Hematology and Oncology, Dana-Farber Cancer Institute and Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Judy E Garber
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Victor E Velculescu
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland
- Department of Pathology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland
| | - Mary L Disis
- Department of Medicine, Center for Translational Medicine in Women's Health, University of Washington, Seattle, Washington
| | - Douglas C Wallace
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Scott M Lippman
- Department of Medicine, Moores Cancer Center, University of California San Diego, La Jolla, California.
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14
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Alothman SJ, Wang W, Goerlitz DS, Islam M, Zhong X, Kishore A, Azhar RI, Kallakury BV, Furth PA. Responsiveness of Brca1 and Trp53 Deficiency-Induced Mammary Preneoplasia to Selective Estrogen Modulators versus an Aromatase Inhibitor in Mus musculus. Cancer Prev Res (Phila) 2017; 10:244-254. [PMID: 28283467 DOI: 10.1158/1940-6207.capr-16-0268] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 01/10/2017] [Accepted: 02/17/2017] [Indexed: 11/16/2022]
Abstract
An intervention study initiated at age 4 months compared the impact of tamoxifen (25 mg), raloxifene (22.5 mg), and letrozole (2.5 mg) administered by 60-day release subcutaneous pellet on mammary preneoplasia prevalence at age 6 months in conditional genetically engineered mouse models with different Breast cancer 1 (Brca1) gene dosages targeted to mammary epithelial cells and germline Tumor protein P53 (Trp53) haploinsufficiency (10-16/cohort). The proportion of unexposed control mice demonstrating mammary preneoplasia at age 6 months was highest in Brca1fl11/fl11/Cre/p53-/+ (54%) mice followed by Brca1WT/fl11/Cre/p53-/+ mice (30%). By age 12 months, invasive mammary cancers appeared in 80% of Brca1fl11/fl11/Cre/p53-/+ and 42% of Brca1WT/fl11/Cre/p53-/+ control unexposed mice. The spectrum of cancer histology was similar in both models without somatic mutation of the nongenetically engineered Brca1, Trp53, Brca2, or Death-associated protein kinase 3 (Dapk3) alleles. Two-month exposure to tamoxifen, raloxifene, and letrozole significantly reduced estrogen-mediated tertiary branching by 65%, 71%, and 78%, respectively, in Brca1fl11/fl11/Cre/p53-/+ mice at age 6 months. However, only letrozole significantly reduced hyperplastic alveolar nodules (HAN) prevalence (by 52%) and number (by 30%) and invasive cancer appeared despite tamoxifen exposure. In contrast, tamoxifen significantly reduced HAN number by 95% in Brca1WT/fl11/Cre/p53-/+ mice. Control mice with varying combinations of the different genetically modified alleles and MMTV-Cre transgene demonstrated that the combination of Brca1 insufficiency and Trp53 haploinsufficiency was required for appearance of preneoplasia and no individual genetic alteration confounded the response to tamoxifen. In summary, although specific antihormonal approaches showed effectiveness, with Brca1 gene dosage implicated as a possible modifying variable, more effective chemopreventive approaches for Brca1 mutation-induced cancer may require alternative and/or additional agents. Cancer Prev Res; 10(4); 244-54. ©2017 AACR.
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Affiliation(s)
- Sahar J Alothman
- Graduate School of Arts and Science, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC.,Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Weisheng Wang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - David S Goerlitz
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Md Islam
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Xiaogang Zhong
- Department of Biostatistics, Bioinformatics & Biomathematics, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Archana Kishore
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Redha I Azhar
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Bhaskar V Kallakury
- Department of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC.,Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Priscilla A Furth
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC. .,Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC.,Department of Medicine, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
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15
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Dunnick JK, Morgan DL, Elmore SA, Gerrish K, Pandiri A, Ton TV, Shockley KR, Merrick BA. Tetrabromobisphenol A activates the hepatic interferon pathway in rats. Toxicol Lett 2017; 266:32-41. [PMID: 27914987 PMCID: PMC5791538 DOI: 10.1016/j.toxlet.2016.11.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 10/11/2016] [Accepted: 11/25/2016] [Indexed: 11/25/2022]
Abstract
Tetrabromobisphenol A (TBBPA) is a widely used flame retardant in printed circuit boards, paper, and textiles. In a two-year study, TBBPA showed evidence of uterine tumors in female Wistar-Han rats and liver and colon tumors in B6C3F1 mice. In order to gain further insight into early gene and pathway changes leading to cancer, we exposed female Wistar Han rats to TBBPA at 0, 25, 250, or 1000mg/kg (oral gavage in corn oil, 5×/week) for 13 weeks. Because at the end of the TBBPA exposure period, there were no treatment-related effects on body weights, liver or uterus lesions, and liver and uterine organ weights were within 10% of controls, only the high dose animals were analyzed. Analysis of the hepatic and uterine transcriptomes showed TBBPA-induced changes primarily in the liver (1000mg/kg), with 159 transcripts corresponding to 132 genes differentially expressed compared to controls (FDR=0.05). Pathway analysis showed activation of interferon (IFN) and metabolic networks. TBBPA induced few molecular changes in the uterus. Activation of the interferon pathway in the liver occurred after 13-weeks of TBBPA exposure, and with longer term TBBPA exposure this may lead to immunomodulatory changes that contribute to carcinogenic processes.
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Affiliation(s)
- J K Dunnick
- Toxicology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
| | - D L Morgan
- NTP Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - S A Elmore
- Cellular and Molecular Pathology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - K Gerrish
- Molecular Genomics Core, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - A Pandiri
- Cellular and Molecular Pathology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - T V Ton
- Cellular and Molecular Pathology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - K R Shockley
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - B A Merrick
- Biomolecular Screening Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
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16
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Wang W, Belosay A, Yang X, Hartman JA, Song H, Iwaniec UT, Turner RT, Churchwell MI, Doerge DR, Helferich WG. Effects of letrozole on breast cancer micro-metastatic tumor growth in bone and lung in mice inoculated with murine 4T1 cells. Clin Exp Metastasis 2016; 33:475-85. [PMID: 27209469 DOI: 10.1007/s10585-016-9792-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 04/11/2016] [Indexed: 12/11/2022]
Abstract
Breast cancer (BC) is the leading cancer in women worldwide. Metastasis occurs in stage IV BC with bone and lung being common metastatic sites. Here we evaluate the effects of the aromatase inhibitor letrozole on BC micro-metastatic tumor growth in bone and lung metastasis in intact and ovariectomized (OVX) mice with murine estrogen receptor negative (ER-) BC cells inoculated in tibia. Forty-eight BALB/c mice were randomly assigned to one of four groups: OVX, OVX + Letrozole, Intact, and Intact + Letrozole, and injected with 4T1 cells intra-tibially. Letrozole was subcutaneously injected daily for 23 days at a dose of 1.75 µg/g body weight. Tumor progression was monitored by bioluminescence imaging (BLI). Following necropsy, inoculated tibiae were scanned via µCT and bone response to tumor was scored from 0 (no ectopic mineralization/osteolysis) to 5 (extensive ectopic mineralization/osteolysis). OVX mice had higher tibial pathology scores indicative of more extensive bone destruction than intact mice, irrespective of letrozole treatment. Letrozole decreased serum estradiol levels and reduced lung surface tumor numbers in intact animals. Furthermore, mice receiving letrozole had significantly fewer tumor colonies and fewer proliferative cells in the lung than OVX and intact controls based on H&E and Ki-67 staining, respectively. In conclusion, BC-inoculated OVX animals had higher tibia pathology scores than BC-inoculated intact animals and letrozole reduced BC metastases to lungs. These findings suggest that, by lowering systemic estrogen level and/or by interacting with the host organ, the aromatase inhibitor letrozole has the potential to reduce ER- BC metastasis to lung.
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Affiliation(s)
- Wendan Wang
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 574 Bevier Hall, 905 South Goodwin Avenue, Urbana, IL, 61801, USA
| | - Aashvini Belosay
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 574 Bevier Hall, 905 South Goodwin Avenue, Urbana, IL, 61801, USA
| | - Xujuan Yang
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 574 Bevier Hall, 905 South Goodwin Avenue, Urbana, IL, 61801, USA
| | - James A Hartman
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 574 Bevier Hall, 905 South Goodwin Avenue, Urbana, IL, 61801, USA
| | - Huaxin Song
- Health Sciences Center, School of Nursing, Texas Tech University, Lubbock, TX, USA
| | - Urszula T Iwaniec
- Skeletal Biology Laboratory, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA.,Center for Healthy Aging Research, Oregon State University, Corvallis, OR, USA
| | - Russell T Turner
- Skeletal Biology Laboratory, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA.,Center for Healthy Aging Research, Oregon State University, Corvallis, OR, USA
| | - Mona I Churchwell
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72079, USA
| | - Daniel R Doerge
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72079, USA
| | - William G Helferich
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 574 Bevier Hall, 905 South Goodwin Avenue, Urbana, IL, 61801, USA.
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17
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Zhao S, Chen SS, Gu Y, Jiang EZ, Yu ZH. Expression and Clinical Significance of Sushi Domain-Containing Protein 3 (SUSD3) and Insulin-like Growth Factor-I Receptor (IGF-IR) in Breast Cancer. Asian Pac J Cancer Prev 2016; 16:8633-6. [DOI: 10.7314/apjcp.2015.16.18.8633] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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18
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Feltus FA, Breen JR, Deng J, Izard RS, Konger CA, Ligon WB, Preuss D, Wang KC. The Widening Gulf between Genomics Data Generation and Consumption: A Practical Guide to Big Data Transfer Technology. Bioinform Biol Insights 2015; 9:9-19. [PMID: 26568680 PMCID: PMC4636112 DOI: 10.4137/bbi.s28988] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/10/2015] [Accepted: 08/12/2015] [Indexed: 01/14/2023] Open
Abstract
In the last decade, high-throughput DNA sequencing has become a disruptive technology and pushed the life sciences into a distributed ecosystem of sequence data producers and consumers. Given the power of genomics and declining sequencing costs, biology is an emerging “Big Data” discipline that will soon enter the exabyte data range when all subdisciplines are combined. These datasets must be transferred across commercial and research networks in creative ways since sending data without thought can have serious consequences on data processing time frames. Thus, it is imperative that biologists, bioinformaticians, and information technology engineers recalibrate data processing paradigms to fit this emerging reality. This review attempts to provide a snapshot of Big Data transfer across networks, which is often overlooked by many biologists. Specifically, we discuss four key areas: 1) data transfer networks, protocols, and applications; 2) data transfer security including encryption, access, firewalls, and the Science DMZ; 3) data flow control with software-defined networking; and 4) data storage, staging, archiving and access. A primary intention of this article is to orient the biologist in key aspects of the data transfer process in order to frame their genomics-oriented needs to enterprise IT professionals.
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Affiliation(s)
- Frank A Feltus
- Department of Genetics and Biochemistry, Clemson University, Clemson, SC, USA
| | - Joseph R Breen
- University of Utah Center for High Performance Computing, Salt Lake City, UT, USA
| | - Juan Deng
- Department of Electrical and Computer Engineering, Clemson University, Clemson, SC, USA
| | - Ryan S Izard
- Department of Electrical and Computer Engineering, Clemson University, Clemson, SC, USA
| | - Christopher A Konger
- Clemson Computing and Information Technology, Clemson University, Anderson, SC, USA
| | - Walter B Ligon
- Department of Electrical and Computer Engineering, Clemson University, Clemson, SC, USA
| | | | - Kuang-Ching Wang
- Department of Electrical and Computer Engineering, Clemson University, Clemson, SC, USA
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