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Tam KJ, Liu L, Hsing M, Dalal K, Thaper D, McConeghy B, Yenki P, Bhasin S, Peacock JW, Wang Y, Cherkasov A, Rennie PS, Gleave ME, Ong CJ. Clinically-observed FOXA1 mutations upregulate SEMA3C through transcriptional derepression in prostate cancer. Sci Rep 2024; 14:7082. [PMID: 38528115 PMCID: PMC10963789 DOI: 10.1038/s41598-024-57854-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/22/2024] [Indexed: 03/27/2024] Open
Abstract
FOXA1 is a pioneer transcription factor that is frequently mutated in prostate, breast, bladder, and salivary gland malignancies. Indeed, metastatic castration-resistant prostate cancer (mCRPC) commonly harbour FOXA1 mutations with a prevalence of 35%. However, despite the frequent recurrence of FOXA1 mutations in prostate cancer, the mechanisms by which FOXA1 variants drive its oncogenic effects are still unclear. Semaphorin 3C (SEMA3C) is a secreted autocrine growth factor that drives growth and treatment resistance of prostate and other cancers and is known to be regulated by both AR and FOXA1. In the present study, we characterize FOXA1 alterations with respect to its regulation of SEMA3C. Our findings reveal that FOXA1 alterations lead to elevated levels of SEMA3C both in prostate cancer specimens and in vitro. We further show that FOXA1 negatively regulates SEMA3C via intronic cis elements, and that mutations in FOXA1 forkhead domain attenuate its inhibitory function in reporter assays, presumably by disrupting DNA binding of FOXA1. Our findings underscore the key role of FOXA1 in prostate cancer progression and treatment resistance by regulating SEMA3C expression and suggest that SEMA3C may be a driver of growth and tumor vulnerability of mCRPC harboring FOXA1 alterations.
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Affiliation(s)
- Kevin J Tam
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
| | - Liangliang Liu
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
| | - Michael Hsing
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
| | - Kush Dalal
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
| | - Daksh Thaper
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Brian McConeghy
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
| | - Parvin Yenki
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Satyam Bhasin
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - James W Peacock
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Yuzhuo Wang
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
- Department of Experimental Therapeutics, BC Cancer Agency, Vancouver, BC, Canada
| | - Artem Cherkasov
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Paul S Rennie
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Martin E Gleave
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Christopher J Ong
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada.
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada.
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2
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Bhasin S, Dusek C, Peacock JW, Cherkasov A, Wang Y, Gleave M, Ong CJ. Dependency of Tamoxifen Sensitive and Resistant ER + Breast Cancer Cells on Semaphorin 3C (SEMA3C) for Growth. Cells 2023; 12:1715. [PMID: 37443749 PMCID: PMC10341167 DOI: 10.3390/cells12131715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/17/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Estrogen receptor positive (ER+) breast cancer (BCa) accounts for the highest proportion of breast cancer-related deaths. While endocrine therapy is highly effective for this subpopulation, endocrine resistance remains a major challenge and the identification of novel targets is urgently needed. Previously, we have shown that Semaphorin 3C (SEMA3C) is an autocrine growth factor that drives the growth and treatment resistance of various cancers, but its role in breast cancer progression and endocrine resistance is poorly understood. Here, we report that SEMA3C plays a role in maintaining the growth of ER+ BCa cells and is a novel, tractable therapeutic target for the treatment of ER+ BCa patients. Analyses of publicly available clinical datasets indicate that ER+ BCa patients express significantly higher levels of SEMA3C mRNA than other subtypes. Furthermore, SEMA3C mRNA expression was positively correlated with ESR1 mRNA expression. ER+ BCa cell lines (MCF7 and T47D) expressed higher levels of SEMA3C mRNA and protein than a normal mammary epithelial MCF10A cell line. ER siRNA knockdown was suppressed, while dose-dependent beta-estradiol treatment induced SEMA3C expression in both MCF7 and T47D cells, suggesting that SEMA3C is an ER-regulated gene. The stimulation of ER+ BCa cells with recombinant SEMA3C activated MAPK and AKT signaling in a dose-dependent manner. Conversely, SEMA3C silencing inhibited Estrogen Receptor (ER) expression, MAPK and AKT signaling pathways while simultaneously inducing apoptosis, as monitored by flow cytometry and Western blot analyses. SEMA3C silencing significantly inhibited the growth of ER+ BCa cells, implicating a growth dependency of ER+ BCa cells on SEMA3C. Moreover, the analysis of tamoxifen resistant (TamR) cell models (TamC3 and TamR3) showed that SEMA3C levels remain high despite treatment with tamoxifen. Tamoxifen-resistant cells remained dependent on SEMA3C for growth and survival. Treatment with B1SP Fc fusion protein, a SEMA3C pathway inhibitor, attenuated SEMA3C-induced signaling and growth across a panel of tamoxifen sensitive and resistant ER+ breast cancer cells. Furthermore, SEMA3C silencing and B1SP treatment were associated with decreased EGFR signaling in TamR cells. Here, our study implicates SEMA3C in a functional role in ER+ breast cancer signaling and growth that suggests ER+ BCa patients may benefit from SEMA3C-targeted therapy.
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Affiliation(s)
- Satyam Bhasin
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (S.B.); (C.D.); (J.W.P.); (A.C.); (Y.W.); (M.G.)
- Department of Urologic Sciences, The University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Christopher Dusek
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (S.B.); (C.D.); (J.W.P.); (A.C.); (Y.W.); (M.G.)
- Department of Urologic Sciences, The University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - James W. Peacock
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (S.B.); (C.D.); (J.W.P.); (A.C.); (Y.W.); (M.G.)
- Department of Urologic Sciences, The University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Artem Cherkasov
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (S.B.); (C.D.); (J.W.P.); (A.C.); (Y.W.); (M.G.)
- Department of Urologic Sciences, The University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Yuzhuo Wang
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (S.B.); (C.D.); (J.W.P.); (A.C.); (Y.W.); (M.G.)
- Department of Urologic Sciences, The University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Martin Gleave
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (S.B.); (C.D.); (J.W.P.); (A.C.); (Y.W.); (M.G.)
- Department of Urologic Sciences, The University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Christopher J. Ong
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (S.B.); (C.D.); (J.W.P.); (A.C.); (Y.W.); (M.G.)
- Department of Urologic Sciences, The University of British Columbia, Vancouver, BC V5Z 1M9, Canada
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3
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Bica C, Tirpe A, Nutu A, Ciocan C, Chira S, Gurzau ES, Braicu C, Berindan-Neagoe I. Emerging roles and mechanisms of semaphorins activity in cancer. Life Sci 2023; 318:121499. [PMID: 36775114 DOI: 10.1016/j.lfs.2023.121499] [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: 11/28/2022] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
Semaphorins are regulatory molecules that are linked to the modulation of several cancer processes, such as angiogenesis, cancer cell invasiveness and metastasis, tumor growth, as well as cancer cell survival. Semaphorin (SEMA) activity depends on the cancer histotypes and their particularities. In broad terms, the effects of SEMAs result from their interaction with specific receptors/co-receptors - Plexins, Neuropilins and Integrins - and the subsequent effects upon the downstream effectors (e.g. PI3K/AKT, MAPK/ERK). The present article serves as an integrative review work, discussing the broad implications of semaphorins in cancer, focusing on cell proliferation/survival, angiogenesis, invasion, metastasis, stemness, and chemo-resistance/response whilst highlighting their heterogeneity as a family. Herein, we emphasized that semaphorins are largely implicated in cancer progression, interacting with the tumor microenvironment components. Whilst some SEMAs (e.g. SEMA3A, SEMA3B) function widely as tumor suppressors, others (e.g. SEMA3C) act as pro-tumor semaphorins. The differences observed in terms of the biological structure of SEMAs and the particularities of each cancer histotypes require that each semaphorin be viewed as a unique entity, and its roles must be researched accordingly. A more in-depth and comprehensive view of the molecular mechanisms that promote and sustain the malignant behavior of cancer cells is of utmost importance.
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Affiliation(s)
- Cecilia Bica
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Alexandru Tirpe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania; Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania.
| | - Andreea Nutu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Cristina Ciocan
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Sergiu Chira
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Eugen S Gurzau
- Cluj School of Public Health, College of Political, Administrative and Communication Sciences, Babes-Bolyai University, 7 Pandurilor Street, Cluj-Napoca, Romania; Environmental Health Center, 58 Busuiocului Street, 400240 Cluj-Napoca, Romania.
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
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4
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Neuropilin-2 promotes lineage plasticity and progression to neuroendocrine prostate cancer. Oncogene 2022; 41:4307-4317. [PMID: 35986103 PMCID: PMC9464715 DOI: 10.1038/s41388-022-02437-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/08/2022]
Abstract
Neuroendocrine prostate cancer (NEPC), a lethal subset of prostate cancer, is characterized by loss of AR signaling and resulting resistance to AR-targeted therapy during neuroendocrine transdifferentiation, for which the molecular mechanisms remain unclear. Here, we report that neuropilin 2 (NRP2) is upregulated in both de novo and therapy-induced NEPC, which induces neuroendocrine markers, neuroendocrine cell morphology, and NEPC cell aggressive behavior. NRP2 silencing restricted NEPC tumor xenograft growth. Mechanistically, NRP2 engages in reciprocal crosstalk with AR, where NRP2 is transcriptionally inhibited by AR, and in turn suppresses AR signaling by downregulating the AR transcriptional program and confers resistance to enzalutamide. Moreover, NRP2 physically interacts with VEGFR2 through the intracellular SEA domain to activate STAT3 phosphorylation and subsequently SOX2, thus driving NEPC differentiation and growth. Collectively, these results characterize NRP2 as a driver of NEPC and suggest NRP2 as a potential therapeutic target in NEPC.
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5
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Mastrantonio R, You H, Tamagnone L. Semaphorins as emerging clinical biomarkers and therapeutic targets in cancer. Theranostics 2021; 11:3262-3277. [PMID: 33537086 PMCID: PMC7847692 DOI: 10.7150/thno.54023] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/06/2020] [Indexed: 12/15/2022] Open
Abstract
Semaphorins are a large family of developmental regulatory signals, characterized by aberrant expression in human cancers. These molecules crucially control cell-cell communication, cell migration, invasion and metastasis, tumor angiogenesis, inflammatory and anti-cancer immune responses. Semaphorins comprise secreted and cell surface-exposed molecules and their receptors are mainly found in the Plexin and Neuropilin families, which are further implicated in a signaling network controlling the tumor microenvironment. Accumulating evidence indicates that semaphorins may be considered as novel clinical biomarkers for cancer, especially for the prediction of patient survival and responsiveness to therapy. Moreover, preclinical experimental studies have demonstrated that targeting semaphorin signaling can interfere with tumor growth and/or metastatic dissemination, suggesting their relevance as novel therapeutic targets in cancer; this has also prompted the development of semaphorin-interfering molecules for application in the clinic. Here we will survey, in diverse human cancers, the current knowledge about the relevance of semaphorin family members, and conceptualize potential lines of future research development in this field.
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6
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Yin L, Li J, Wang J, Pu T, Wei J, Li Q, Wu BJ. MAOA promotes prostate cancer cell perineural invasion through SEMA3C/PlexinA2/NRP1-cMET signaling. Oncogene 2021; 40:1362-1374. [PMID: 33420365 DOI: 10.1038/s41388-020-01615-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 02/05/2023]
Abstract
Perineural invasion (PNI), a pathologic feature defined as cancer cell invasion in, around, and through nerves, is an indicator of poor prognosis and survival in prostate cancer (PC). Despite widespread recognition of the clinical significance of PNI, the molecular mechanisms are largely unknown. Here, we report that monoamine oxidase A (MAOA) is a clinically and functionally important mediator of PNI in PC. MAOA promotes PNI of PC cells in vitro and tumor innervation in an orthotopic xenograft model. Mechanistically, MAOA activates SEMA3C in a Twist1-dependent transcriptional manner, which in turn stimulates cMET to facilitate PNI via autocrine or paracrine interaction with coactivated PlexinA2 and NRP1. Furthermore, MAOA inhibitor treatment effectively reduces PNI of PC cells in vitro and tumor-infiltrating nerve fiber density along with suppressed xenograft tumor growth and progression in mice. Collectively, these findings characterize the contribution of MAOA to the pathogenesis of PNI and provide a rationale for using MAOA inhibitors as a targeted treatment for PNI in PC.
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Affiliation(s)
- Lijuan Yin
- Uro-Oncology Research Program, Samuel Oschin Comprehensive Cancer Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA.,Department of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jingjing Li
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA.,Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jing Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Tianjie Pu
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Jing Wei
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Qinlong Li
- Uro-Oncology Research Program, Samuel Oschin Comprehensive Cancer Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Boyang Jason Wu
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA.
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7
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Crump LS, Wyatt GL, Rutherford TR, Richer JK, Porter WW, Lyons TR. Hormonal Regulation of Semaphorin 7a in ER + Breast Cancer Drives Therapeutic Resistance. Cancer Res 2020; 81:187-198. [PMID: 33122307 DOI: 10.1158/0008-5472.can-20-1601] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/10/2020] [Accepted: 10/26/2020] [Indexed: 11/16/2022]
Abstract
Approximately 70% of all breast cancers are estrogen receptor-positive (ER+ breast cancer), and endocrine therapy has improved survival for patients with ER+ breast cancer. However, up to half of these tumors recur within 20 years. Recurrent ER+ breast cancers develop resistance to endocrine therapy; thus, novel targets are needed to treat recurrent ER+ breast cancer. Here we report that semaphorin 7A (SEMA7A) confers significantly decreased patient survival rates in ER+ breast cancer. SEMA7A was hormonally regulated in ER+ breast cancer, but its expression did not uniformly decrease with antiestrogen treatments. Additionally, overexpression of SEMA7A in ER+ cell lines drove increased in vitro growth in the presence of estrogen deprivation, tamoxifen, and fulvestrant. In vivo, SEMA7A conferred primary tumor resistance to fulvestrant and induced lung metastases. Prosurvival signaling was identified as a therapeutic vulnerability of ER+SEMA7A+ tumors. We therefore propose that targeting this pathway with inhibitors of survival signaling such as venetoclax may prove efficacious for treating SEMA7A+ tumors. SIGNIFICANCE: SEMA7A predicts for and likely contributes to poor response to standard-of-care therapies, suggesting that patients with SEMA7A+ER+ tumors may benefit from alternative therapeutic strategies. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/81/1/187/F1.large.jpg.
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Affiliation(s)
- Lyndsey S Crump
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado.,Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Garhett L Wyatt
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, Texas
| | - Taylor R Rutherford
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado.,Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Jennifer K Richer
- Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Weston W Porter
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, Texas
| | - Traci R Lyons
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado. .,Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado.,University of Colorado Cancer Center, Aurora, Colorado
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8
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PlexinB1 Promotes Nuclear Translocation of the Glucocorticoid Receptor. Cells 2019; 9:cells9010003. [PMID: 31861264 PMCID: PMC7017238 DOI: 10.3390/cells9010003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/29/2019] [Accepted: 12/14/2019] [Indexed: 12/12/2022] Open
Abstract
Androgen receptor (AR) and glucocorticoid receptor (GR) are nuclear receptors whose function depends on their entry into the nucleus where they activate transcription of an overlapping set of genes. Both AR and GR have a role in resistance to androgen deprivation therapy (ADT), the mainstay of treatment for late stage prostate cancer. PlexinB1, a receptor for semaphorins, has been implicated in various cancers including prostate cancer and has a role in resistance to ADT. We show here that activation of PlexinB1 by Sema4D and Sema3C results in translocation of endogenous GR to the nucleus in prostate cancer cells, and that this effect is dependent on PlexinB1 expression. Sema4D/Sema3C promotes the translocation of GR-GFP to the nucleus and mutation of the nuclear localization sequence (NLS1) of GR abrogates this response. These findings implicate the importin α/β system in the Sema4D/Sema3C-mediated nuclear import of GR. Knockdown of PlexinB1 in prostate cancer cells decreases the levels of glucocorticoid-responsive gene products and antagonizes the decrease in cell motility and cell area of prostate cancer cells upon dexamethasone treatment, demonstrating the functional significance of these findings. These results show that PlexinB1 activation has a role in the trafficking and activation of the nuclear receptor GR and thus may have a role in resistance to androgen deprivation therapy in late stage prostate cancer.
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9
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Liu R, Shuai Y, Luo J, Zhang Z. SEMA3C Promotes Cervical Cancer Growth and Is Associated With Poor Prognosis. Front Oncol 2019; 9:1035. [PMID: 31649890 PMCID: PMC6794562 DOI: 10.3389/fonc.2019.01035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 09/24/2019] [Indexed: 12/24/2022] Open
Abstract
Introduction: Aberrant activation of Semaphorin3C(SEMA3C) is widespread in human cancers. We aimed to analyze SEMA3C expression in cervical cancer and investigate the role of SEMA3C in cervical cancer and its underlying mechanism, which is important for exploring new therapeutic targets and prognostic factors. Materials and Methods: The expression of SEMA3C was examined in paraffin-embedded cervical cancer specimens. In vivo and in vitro assays were performed to validate the effect of SEMA3C on cervical cancer cell proliferation and p-ERK pathway activation. Gene Set Enrichment Analysis (GSEA) was performed using The Cancer Genome Atlas (TCGA) data set. Results: SEMA3C expression was associated with poor survival in both the TCGA cohort and our cohort. Silencing of SEMA3C suppressed cervical cancer cell proliferation, colony formation ability, and the activation of the p-ERK signaling pathway in vitro. SEMA3C depletion inhibited tumor growth in vitro. GSEA also showed that the epithelial mesenchymal transition (EMT), TGFβ signaling pathway, angiogenesis, and extracellular matrix (ECM) receptor interactions are associated with a high SEMA3C expression phenotype. Conclusion: SEMA3C is correlated with poor prognosis of cervical cancer patients and promotes tumor growth via the activation of the p-ERK pathway.
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Affiliation(s)
- Ruoyan Liu
- Department of Gynecologic Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Yanjie Shuai
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Department of Maxillofacial and Otorhinolaryngology Oncology and Department of Head and Neck Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
| | - Jingtao Luo
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Department of Maxillofacial and Otorhinolaryngology Oncology and Department of Head and Neck Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
| | - Ze Zhang
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Department of Maxillofacial and Otorhinolaryngology Oncology and Department of Head and Neck Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
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10
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Büscheck F, Zub M, Heumann A, Hube-Magg C, Simon R, Lang DS, Höflmayer D, Neubauer E, Jacobsen F, Hinsch A, Luebke AM, Tsourlakis MC, Sauter G, Huland H, Graefen M, Haese A, Heinzer H, Schlomm T, Clauditz TS, Burandt E, Wilczak W, Steurer S, Minner S. The independent prognostic impact of the GATA2 pioneering factor is restricted to ERG-negative prostate cancer. Tumour Biol 2019; 41:1010428318824815. [PMID: 31296150 DOI: 10.1177/1010428318824815] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
GATA2 is a pioneering transcription factor governing androgen receptor expression and signaling in prostate cells. To understand the prognostic potential of GATA2 assessment in prostate cancer, we analyzed nuclear GATA2 expression on an annotated tissue microarray with 12,427 prostate cancer samples. Normal prostate glands were negative to weakly positive. GATA2 staining was found in almost all prostate cancers (95%). Strong GATA2 staining was linked to advanced tumor stage, high classical and quantitative Gleason grade (p < 0.0001 each), positive nodal stage (p = 0.0116), and early biochemical recurrence (p < 0.0001). GATA2 was linked to ERG-fusion-type cancers, with strong GATA2 staining in 29% of ERG-negative and 53% of ERG-positive cancers (p < 0.0001). Separate calculations in 3854 cancers with and 4768 cancers without TMPRSS2:ERG fusion revealed that these associations with tumor phenotype and patient outcome were largely driven by the subset of ERG-negative tumors. GATA2 expression was further linked to androgen receptor expression: Only 8% of androgen receptor-negative, but 56% of strongly androgen receptor expressing cancers had strong GATA2 expression (p < 0.0001). In conclusion, the results of our study demonstrate that increasing GATA2 levels are linked to prostate cancer progression and aggressiveness. The prognostic value of GATA2 is remarkable in ERG-negative cancers. However, the upregulation of GATA2 in ERG-positive cancers makes it unsuitable as a prognostic marker in this patient subset.
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Affiliation(s)
- Franziska Büscheck
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maciej Zub
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Asmus Heumann
- 2 General, Visceral and Thoracic Surgery Department and Clinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Claudia Hube-Magg
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ronald Simon
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Dagmar S Lang
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Doris Höflmayer
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Emily Neubauer
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frank Jacobsen
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andrea Hinsch
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas M Luebke
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Guido Sauter
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hartwig Huland
- 3 Martini-Clinic Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- 3 Martini-Clinic Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alexander Haese
- 3 Martini-Clinic Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hans Heinzer
- 3 Martini-Clinic Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Torsten Schlomm
- 4 Department of Urology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Till S Clauditz
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eike Burandt
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Waldemar Wilczak
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Steurer
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sarah Minner
- 1 Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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11
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Semaphorin 3C as a Therapeutic Target in Prostate and Other Cancers. Int J Mol Sci 2019; 20:ijms20030774. [PMID: 30759745 PMCID: PMC6386986 DOI: 10.3390/ijms20030774] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 02/05/2019] [Accepted: 02/08/2019] [Indexed: 12/21/2022] Open
Abstract
The semaphorins represent a large family of signaling molecules with crucial roles in neuronal and cardiac development. While normal semaphorin function pertains largely to development, their involvement in malignancy is becoming increasingly evident. One member, Semaphorin 3C (SEMA3C), has been shown to drive a number of oncogenic programs, correlate inversely with cancer prognosis, and promote the progression of multiple different cancer types. This report surveys the body of knowledge surrounding SEMA3C as a therapeutic target in cancer. In particular, we summarize SEMA3C’s role as an autocrine andromedin in prostate cancer growth and survival and provide an overview of other cancer types that SEMA3C has been implicated in including pancreas, brain, breast, and stomach. We also propose molecular strategies that could potentially be deployed against SEMA3C as anticancer agents such as biologics, small molecules, monoclonal antibodies and antisense oligonucleotides. Finally, we discuss important considerations for the inhibition of SEMA3C as a cancer therapeutic agent.
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12
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Lee CCW, Munuganti RSN, Peacock JW, Dalal K, Jiao IZF, Shepherd A, Liu L, Tam KJ, Sedgwick CG, Bhasin S, Lee KCK, Gooding L, Vanderkruk B, Tombe T, Gong Y, Gleave ME, Cherkasov A, Ong CJ. Targeting Semaphorin 3C in Prostate Cancer With Small Molecules. J Endocr Soc 2018; 2:1381-1394. [PMID: 30534631 PMCID: PMC6280316 DOI: 10.1210/js.2018-00170] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 10/08/2018] [Indexed: 02/08/2023] Open
Abstract
Despite the amenability of early-stage prostate cancer to surgery and radiation therapy, locally advanced and metastatic prostate cancer is clinically problematic. Chemical castration is often used as a first-line therapy for advanced disease, but progression to the castration-resistant prostate cancer phase occurs with dependable frequency, largely through mutations to the androgen receptor (AR), aberrant AR signaling, and AR-independent mechanisms, among other causes. Semaphorin 3C (SEMA3C) is a secreted signaling protein that is essential for cardiac and neuronal development and has been shown to be regulated by the AR, to drive epithelial-to-mesenchymal transition and stem features in prostate cells, to activate receptor tyrosine kinases, and to promote cancer progression. Given that SEMA3C is linked to several key aspects of prostate cancer progression, we set out to explore SEMA3C inhibition by small molecules as a prospective cancer therapy. A homology-based SEMA3C protein structure was created, and its interaction with the neuropilin (NRP)-1 receptor was modeled to guide the development of the corresponding disrupting compounds. Experimental screening of 146 in silico‒identified molecules from the National Cancer Institute library led to the discovery of four promising candidates that effectively bind to SEMA3C, inhibit its association with NRP1, and attenuate prostate cancer growth. These findings provide proof of concept for the feasibility of inhibiting SEMA3C with small molecules as a therapeutic approach for prostate cancer.
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Affiliation(s)
- Chung C W Lee
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | | | - James W Peacock
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kush Dalal
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Ivy Z F Jiao
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Ashley Shepherd
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Liangliang Liu
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Kevin J Tam
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Colin G Sedgwick
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Satyam Bhasin
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Kevin C K Lee
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Luke Gooding
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Benjamin Vanderkruk
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Tabitha Tombe
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Yifan Gong
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Martin E Gleave
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Artem Cherkasov
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christopher J Ong
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
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13
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Semaphorin 3C and Its Receptors in Cancer and Cancer Stem-Like Cells. Biomedicines 2018; 6:biomedicines6020042. [PMID: 29642487 PMCID: PMC6027460 DOI: 10.3390/biomedicines6020042] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 03/27/2018] [Accepted: 04/03/2018] [Indexed: 01/13/2023] Open
Abstract
Neurodevelopmental programs are frequently dysregulated in cancer. Semaphorins are a large family of guidance cues that direct neuronal network formation and are also implicated in cancer. Semaphorins have two kinds of receptors, neuropilins and plexins. Besides their role in development, semaphorin signaling may promote or suppress tumors depending on their context. Sema3C is a secreted semaphorin that plays an important role in the maintenance of cancer stem-like cells, promotes migration and invasion, and may facilitate angiogenesis. Therapeutic strategies that inhibit Sema3C signaling may improve cancer control. This review will summarize the current research on the Sema3C pathway and its potential as a therapeutic target.
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14
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Peacock JW, Takeuchi A, Hayashi N, Liu L, Tam KJ, Al Nakouzi N, Khazamipour N, Tombe T, Dejima T, Lee KC, Shiota M, Thaper D, Lee WC, Hui DH, Kuruma H, Ivanova L, Yenki P, Jiao IZ, Khosravi S, Mui ALF, Fazli L, Zoubeidi A, Daugaard M, Gleave ME, Ong CJ. SEMA3C drives cancer growth by transactivating multiple receptor tyrosine kinases via Plexin B1. EMBO Mol Med 2018; 10:219-238. [PMID: 29348142 PMCID: PMC5801490 DOI: 10.15252/emmm.201707689] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 11/22/2017] [Accepted: 12/01/2017] [Indexed: 02/06/2023] Open
Abstract
Growth factor receptor tyrosine kinase (RTK) pathway activation is a key mechanism for mediating cancer growth, survival, and treatment resistance. Cognate ligands play crucial roles in autocrine or paracrine stimulation of these RTK pathways. Here, we show SEMA3C drives activation of multiple RTKs including EGFR, ErbB2, and MET in a cognate ligand-independent manner via Plexin B1. SEMA3C expression levels increase in castration-resistant prostate cancer (CRPC), where it functions to promote cancer cell growth and resistance to androgen receptor pathway inhibition. SEMA3C inhibition delays CRPC and enzalutamide-resistant progression. Plexin B1 sema domain-containing:Fc fusion proteins suppress RTK signaling and cell growth and inhibit CRPC progression of LNCaP xenografts post-castration in vivo SEMA3C inhibition represents a novel therapeutic strategy for treatment of advanced prostate cancer.
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Affiliation(s)
- James W Peacock
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Ario Takeuchi
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urology, Graduate School of Medical Sciences Kyushi University, Fukuoka, Japan
| | - Norihiro Hayashi
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | | | - Kevin J Tam
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | | | | | | | - Takashi Dejima
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urology, Graduate School of Medical Sciences Kyushi University, Fukuoka, Japan
| | - Kevin Ck Lee
- Vancouver Prostate Centre, Vancouver, BC, Canada
| | - Masaki Shiota
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urology, Graduate School of Medical Sciences Kyushi University, Fukuoka, Japan
| | - Daksh Thaper
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | | | | | | | | | - Parvin Yenki
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Ivy Zf Jiao
- Vancouver Prostate Centre, Vancouver, BC, Canada
| | | | - Alice L-F Mui
- Department of Surgery, University of British Columbia, Vancouver, BC, Canada
| | - Ladan Fazli
- Vancouver Prostate Centre, Vancouver, BC, Canada
| | - Amina Zoubeidi
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Mads Daugaard
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Martin E Gleave
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Christopher J Ong
- Vancouver Prostate Centre, Vancouver, BC, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
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15
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Delloye-Bourgeois C, Bertin L, Thoinet K, Jarrosson L, Kindbeiter K, Buffet T, Tauszig-Delamasure S, Bozon M, Marabelle A, Combaret V, Bergeron C, Derrington E, Castellani V. Microenvironment-Driven Shift of Cohesion/Detachment Balance within Tumors Induces a Switch toward Metastasis in Neuroblastoma. Cancer Cell 2017; 32:427-443.e8. [PMID: 29017055 DOI: 10.1016/j.ccell.2017.09.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 06/22/2017] [Accepted: 09/12/2017] [Indexed: 12/13/2022]
Abstract
Neuroblastoma (NB) is a childhood cancer arising from sympatho-adrenal neural crest cells. Disseminated forms have high frequency of multiple tumoral foci whose etiology remains unknown; NB embryonic origin limits investigations in patients and current models. We developed an avian embryonic model driving human NB tumorigenesis in tissues homologous to patients. We found that aggressive NBs display a metastatic mode, secondary dissemination via peripheral nerves and aorta. Through tumor transcriptional profiling, we found that NB dissemination is induced by the shutdown of a pro-cohesion autocrine signal, SEMA3C, which constrains the tumoral mass. Lowering SEMA3C levels shifts the balance toward detachment, triggering NB cells to collectively evade the tumor. Together with patient cohort analysis, this identifies a microenvironment-driven pro-metastatic switch for NB.
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Affiliation(s)
- Céline Delloye-Bourgeois
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Lorette Bertin
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Karine Thoinet
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Loraine Jarrosson
- OncoFactory SAS, L'Atrium, 43 boulevard du 11 Novembre 1918, 69100 Villeurbanne, France
| | - Karine Kindbeiter
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Thomas Buffet
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Servane Tauszig-Delamasure
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Muriel Bozon
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Aurélien Marabelle
- Drug Development Department (DITEP), Gustave Roussy Cancer Campus (GRCC), INSERM U1015, 114 rue Edouard Vaillant, 94805 Villejuif, France
| | - Valérie Combaret
- Laboratory of Translational Research, Léon Bérard Centre, 28 rue Laennec, 69008 Lyon, France
| | - Christophe Bergeron
- Departments of Oncology and Clinical Research, Centre Léon Berard and Institut d'Hématologie et d'Oncologie Pédiatrique, 1 Place Professeur Joseph Renaut, 69008 Lyon, France
| | - Edmund Derrington
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Valérie Castellani
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France.
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