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Chen H, Wei J, Zhu Z, Hou Y. Multifaceted roles of PD-1 in tumorigenesis: From immune checkpoint to tumor cell-intrinsic function. Mol Carcinog 2024; 63:1436-1448. [PMID: 38751009 DOI: 10.1002/mc.23740] [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: 12/21/2023] [Revised: 02/27/2024] [Accepted: 05/04/2024] [Indexed: 07/10/2024]
Abstract
Programmed cell death 1 (PD-1), a key immune checkpoint receptor, has been extensively studied for its role in regulating immune responses in cancer. However, recent research has unveiled a complex and dual role for PD-1 in tumorigenesis. While PD-1 is traditionally associated with immune cells, this article explores its expression in various cancer cells and its impact on cancer progression. PD-1's functions extend beyond immune regulation, as it has been found to both promote and suppress tumor growth, depending on the cancer type. These findings have significant implications for the future of cancer treatment and our understanding of the immune response in the context of cancer. This article calls for further research into the multifaceted roles of PD-1 to optimize its therapeutic potential and improve patient outcomes in the fight against cancer.
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Affiliation(s)
- Huiqing Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Jiayu Wei
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Zhen Zhu
- Zhenjiang Stomatological Hospital, Zhenjiang, China
| | - Yongzhong Hou
- School of Life Sciences, Jiangsu University, Zhenjiang, China
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2
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Malbeteau L, Jacquemetton J, Languilaire C, Corbo L, Le Romancer M, Poulard C. PRMT1, a Key Modulator of Unliganded Progesterone Receptor Signaling in Breast Cancer. Int J Mol Sci 2022; 23:ijms23179509. [PMID: 36076907 PMCID: PMC9455263 DOI: 10.3390/ijms23179509] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
The progesterone receptor (PR) is a key player in major physiological and pathological responses in women, and the signaling pathways triggered following hormone binding have been extensively studied, particularly with respect to breast cancer development and progression. Interestingly, growing evidence suggests a fundamental role for PR on breast cancer cell homeostasis in hormone-depleted conditions, with hormone-free or unliganded PR (uPR) involved in the silencing of relevant genes prior to hormonal stimulation. We herein identify the protein arginine methyltransferase PRMT1 as a novel actor in uPR signaling. In unstimulated T47D breast cancer cells, PRMT1 interacts and functions alongside uPR and its partners to target endogenous progesterone-responsive promoters. PRMT1 helps to finely tune the silencing of responsive genes, likely by promoting a proper BRCA1-mediated degradation and turnover of unliganded PR. As such, PRMT1 emerges as a key transcriptional coregulator of PR for a subset of relevant progestin-dependent genes before hormonal treatment. Since women experience periods of hormonal fluctuation throughout their lifetime, understanding how steroid receptor pathways in breast cancer cells are regulated when hormones decline may help to determine how to override treatment failure to hormonal therapy and improve patient outcome.
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Affiliation(s)
- Lucie Malbeteau
- Université Lyon 1, F-69000, Lyon, France
- Inserm U1052 CNRS UMR 5286, Cancer Research Center of Lyon, Centre Léon Bérard, F-69008 Lyon, France
| | - Julien Jacquemetton
- Université Lyon 1, F-69000, Lyon, France
- Inserm U1052 CNRS UMR 5286, Cancer Research Center of Lyon, Centre Léon Bérard, F-69008 Lyon, France
| | - Cécile Languilaire
- Université Lyon 1, F-69000, Lyon, France
- Inserm U1052 CNRS UMR 5286, Cancer Research Center of Lyon, Centre Léon Bérard, F-69008 Lyon, France
| | - Laura Corbo
- Université Lyon 1, F-69000, Lyon, France
- Inserm U1052 CNRS UMR 5286, Cancer Research Center of Lyon, Centre Léon Bérard, F-69008 Lyon, France
| | - Muriel Le Romancer
- Université Lyon 1, F-69000, Lyon, France
- Inserm U1052 CNRS UMR 5286, Cancer Research Center of Lyon, Centre Léon Bérard, F-69008 Lyon, France
- Correspondence:
| | - Coralie Poulard
- Université Lyon 1, F-69000, Lyon, France
- Inserm U1052 CNRS UMR 5286, Cancer Research Center of Lyon, Centre Léon Bérard, F-69008 Lyon, France
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3
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Mauvais-Jarvis F, Lange CA, Levin ER. Membrane-Initiated Estrogen, Androgen, and Progesterone Receptor Signaling in Health and Disease. Endocr Rev 2022; 43:720-742. [PMID: 34791092 PMCID: PMC9277649 DOI: 10.1210/endrev/bnab041] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Indexed: 12/15/2022]
Abstract
Rapid effects of steroid hormones were discovered in the early 1950s, but the subject was dominated in the 1970s by discoveries of estradiol and progesterone stimulating protein synthesis. This led to the paradigm that steroid hormones regulate growth, differentiation, and metabolism via binding a receptor in the nucleus. It took 30 years to appreciate not only that some cellular functions arise solely from membrane-localized steroid receptor (SR) actions, but that rapid sex steroid signaling from membrane-localized SRs is a prerequisite for the phosphorylation, nuclear import, and potentiation of the transcriptional activity of nuclear SR counterparts. Here, we provide a review and update on the current state of knowledge of membrane-initiated estrogen (ER), androgen (AR) and progesterone (PR) receptor signaling, the mechanisms of membrane-associated SR potentiation of their nuclear SR homologues, and the importance of this membrane-nuclear SR collaboration in physiology and disease. We also highlight potential clinical implications of pathway-selective modulation of membrane-associated SR.
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Affiliation(s)
- Franck Mauvais-Jarvis
- Department of Medicine, Section of Endocrinology and Metabolism, Tulane University School of Medicine, New Orleans, LA, 70112, USA.,Tulane Center of Excellence in Sex-Based Biology & Medicine, New Orleans, LA, 70112, USA.,Southeast Louisiana Veterans Affairs Medical Center, New Orleans, LA, 70119, USA
| | - Carol A Lange
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA.,Department of Medicine (Division of Hematology, Oncology, and Transplantation), University of Minnesota, Minneapolis, MN 55455, USA.,Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Ellis R Levin
- Division of Endocrinology, Department of Medicine, University of California, Irvine, Irvine, CA, 92697, USA.,Department of Veterans Affairs Medical Center, Long Beach, Long Beach, CA, 90822, USA
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4
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Serum Autoantibodies against LRDD, STC1, and FOXA1 as Biomarkers in the Detection of Ovarian Cancer. DISEASE MARKERS 2022; 2022:6657820. [PMID: 35273656 PMCID: PMC8904091 DOI: 10.1155/2022/6657820] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 10/03/2021] [Accepted: 01/29/2022] [Indexed: 01/13/2023]
Abstract
Purpose This study is aimed at evaluating serum autoantibodies against four tumor-associated antigens, including LRDD, STC1, FOXA1, and EDNRB, as biomarkers in the immunodiagnosis of ovarian cancer (OC). Methods The autoantibodies against LRDD, STC1, FOXA1, and EDNRB were measured using an enzyme-linked immunosorbent assay (ELISA) in 94 OC patients and 94 normal healthy controls (NHC) in the research group. In addition, the diagnostic values of different autoantibodies were validated in another independent validation group, which comprised 136 OC patients, 136 NHC, and 181 patients with benign ovarian diseases (BOD). Results In the research group, autoantibodies against LRDD, STC1, and FOXA1 had higher serum titer in OC patients than NHC (P < 0.001). The area under receiver operating characteristic curves (AUCs) of these three autoantibodies were 0.910, 0.879, and 0.817, respectively. In the validation group, they showed AUCs of 0.759, 0.762, and 0.817 and sensitivities of 49.3%, 42.7%, and 48.5%, respectively, at specificity over 90% for discriminating OC patients from NHC. For discriminating OC patients from BOD, they showed AUCs of 0.718, 0.729, and 0.814 and sensitivities of 47.1%, 39.0%, and 51.5%, respectively, at specificity over 90%. The parallel analyses demonstrated that the combination of anti-LRDD and anti-FOXA1 autoantibodies achieved the optimal diagnostic performance with the sensitivity of 58.1% at 87.5% specificity and accuracy of 72.8%. The positive rate of the optimal autoantibody panel improved from 62.4% to 87.1% when combined with CA125 in detecting OC patients. Conclusion Serum autoantibodies against LRDD, STC1, and FOXA1 have potential diagnostic values in detecting OC.
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5
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Kerkvliet CP, Truong TH, Ostrander JH, Lange CA. Stress sensing within the breast tumor microenvironment: how glucocorticoid receptors live in the moment. Essays Biochem 2021; 65:971-983. [PMID: 34132331 PMCID: PMC8627466 DOI: 10.1042/ebc20200165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/18/2022]
Abstract
The classification and treatment of breast cancer is largely defined by the expression of steroid hormone receptors (HRs), namely estrogen receptor (ER) and progesterone receptor (PR), and gene amplification/overexpression of human epidermal growth factor receptor 2 (HER2). More recently, studies of androgen receptor (AR), glucocorticoid receptor (GR), and mineralocorticoid receptor (MR) have revealed that targeting these related HRs may be a promising strategy for a more personalized approach to the treatment of specific subtypes of HR+ breast cancer. For example, GR expression is associated with a good prognosis in ER+ breast cancer, but predicts poor prognosis in triple-negative breast cancer (TNBC). GR, like ER, PRs, and AR, is a ligand-activated transcription factor, but also has significant ligand-independent signaling activities. GR transcriptional activity is classically regulated by circulating glucocorticoids (GCs; ligand-dependent). Recent studies demonstrate that GR transcriptional activity is also regulated by a variety of cellular stress stimuli that input to GR Ser134 phosphorylation via rapid activation of the p38 mitogen activated protein kinase (MAPK) signaling pathway (ligand-independent). Furthermore, ligand-independent GR activation promotes feedforward signaling loops that mediate sustained activation of stress signaling pathways to drive advanced cancer biology (i.e. migration, invasion, chemoresistance, survival, and cellular growth). In this review, we will focus on the role of GR as a key sensor and mediator of physiologic and tumor microenvironment (TME)-derived cellular stress signaling in TNBC and discuss how targeting GR and/or associated signaling pathways may provide a strategy to inhibit deadly TNBC progression.
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Affiliation(s)
| | - Thu H. Truong
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, U.S.A
| | - Julie Hanson Ostrander
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, U.S.A
- Department of Medicine (Division of Hematology, Oncology, and Transplantation), University of Minnesota, Minneapolis, MN 55455, U.S.A
| | - Carol A. Lange
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, U.S.A
- Department of Medicine (Division of Hematology, Oncology, and Transplantation), University of Minnesota, Minneapolis, MN 55455, U.S.A
- Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, U.S.A
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6
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Mirzaei R, Gordon A, Zemp FJ, Kumar M, Sarkar S, Luchman HA, Bellail AC, Hao C, Mahoney DJ, Dunn JF, Bose P, Yong VW. PD-1 independent of PD-L1 ligation promotes glioblastoma growth through the NFκB pathway. SCIENCE ADVANCES 2021; 7:eabh2148. [PMID: 34739319 PMCID: PMC8570610 DOI: 10.1126/sciadv.abh2148] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Brain tumor–initiating cells (BTICs) drive glioblastoma growth through not fully understood mechanisms. Here, we found that about 8% of cells within the human glioblastoma microenvironment coexpress programmed cell death 1 (PD-1) and BTIC marker. Gain- or loss-of-function studies revealed that tumor-intrinsic PD-1 promoted proliferation and self-renewal of BTICs. Phosphorylation of tyrosines within the cytoplasmic tail of PD-1 recruited Src homology 2–containing phosphatase 2 and activated the nuclear factor kB in BTICs. Notably, the tumor-intrinsic promoting effects of PD-1 did not require programmed cell death ligand 1(PD-L1) ligation; thus, the therapeutic antibodies inhibiting PD-1/PD-L1 interaction could not overcome the growth advantage of PD-1 in BTICs. Last, BTIC-intrinsic PD-1 accelerated intracranial tumor growth, and this occurred in mice lacking T and B cells. These findings point to a critical role for PD-1 in BTICs and uncover a nonimmune resistance mechanism of patients with glioblastoma to PD-1– or PD-L1–blocking therapies.
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Affiliation(s)
- Reza Mirzaei
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Ashley Gordon
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Franz J. Zemp
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Alberta, Canada
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Mehul Kumar
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Susobhan Sarkar
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - H. Artee Luchman
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Anita C. Bellail
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chunhai Hao
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Douglas J. Mahoney
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Alberta, Canada
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Jeff F. Dunn
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Radiology, University of Calgary, Calgary, Alberta, Canada
| | - Pinaki Bose
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
- Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - V. Wee Yong
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
- Corresponding author.
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7
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Hou J, Cheng J, Dai Z, Wei N, Chen H, Wang S, Dai M, Li L, Wang H, Ni Q. Molecular and Clinical Significance of Stanniocalcin-1 Expression in Breast Cancer Through Promotion of Homologous Recombination-Mediated DNA Damage Repair. Front Cell Dev Biol 2021; 9:731086. [PMID: 34722511 PMCID: PMC8554131 DOI: 10.3389/fcell.2021.731086] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 09/20/2021] [Indexed: 11/23/2022] Open
Abstract
Stanniocalcin-1 (STC1) is a glycoprotein hormone whose abnormal expression has been reported to be associated with a variety of tumors, but its function in breast cancer is not well understood. Through modulation of STC1 expression in different breast cancer cell lines, our study found that STC1 could promote the proliferation and growth of breast cancer cells and promote metastasis. Furthermore, STC1 reduced apoptosis induction by irradiation. We also found that STC1 could promote a homologous recombination-mediated DNA damage repair by recruiting BRCA1 to sites of damage. Moreover, STC1 silencing sensitized breast cancer cells to treatment with irradiation (IR), olaparib, or cisplatin in vitro. In clinical settings, the serum concentration of STC1 was higher in breast cancer patients than in healthy women, as detected by enzyme-linked immunosorbent assay (ELISA). In addition, immunohistochemical staining of breast cancer specimens showed that a high expression of STC1 was negatively correlated with recurrence-free survival in breast cancer, indicating that STC1 expression could be used as a predictive marker for a poor prognosis in breast cancer. All these findings indicate that STC1 promotes breast cancer tumorigenesis and that breast cancers with a high level of STC1 are more resistant to treatment, probably through homologous recombination (HR) promotion. Furthermore, combining STC1 inhibition and DNA damage-inducing drugs may be a novel approach to improve the survival of patients with STC1-expressing breast cancer.
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Affiliation(s)
- Jing Hou
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Jigan Cheng
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - ZeHua Dai
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China.,Department of Clinical Medicine, Guizhou Medical University, Guiyang, China
| | - Na Wei
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Huan Chen
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Shu Wang
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Min Dai
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Leilei Li
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Hua Wang
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Qing Ni
- Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, China
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8
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Mauro LJ, Seibel MI, Diep CH, Spartz A, Perez Kerkvliet C, Singhal H, Swisher EM, Schwartz LE, Drapkin R, Saini S, Sesay F, Litovchick L, Lange CA. Progesterone Receptors Promote Quiescence and Ovarian Cancer Cell Phenotypes via DREAM in p53-Mutant Fallopian Tube Models. J Clin Endocrinol Metab 2021; 106:1929-1955. [PMID: 33755733 PMCID: PMC8499172 DOI: 10.1210/clinem/dgab195] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Indexed: 02/08/2023]
Abstract
CONTEXT The ability of ovarian steroids to modify ovarian cancer (OC) risk remains controversial. Progesterone is considered to be protective; recent studies indicate no effect or enhanced OC risk. Knowledge of progesterone receptor (PR) signaling during altered physiology that typifies OC development is limited. OBJECTIVE This study defines PR-driven oncogenic signaling mechanisms in p53-mutant human fallopian tube epithelia (hFTE), a precursor of the most aggressive OC subtype. METHODS PR expression in clinical samples of serous tubal intraepithelial carcinoma (STIC) lesions and high-grade serous OC (HGSC) tumors was analyzed. Novel PR-A and PR-B isoform-expressing hFTE models were characterized for gene expression and cell cycle progression, emboli formation, and invasion. PR regulation of the DREAM quiescence complex and DYRK1 kinases was established. RESULTS STICs and HGSC express abundant activated phospho-PR. Progestin promoted reversible hFTE cell cycle arrest, spheroid formation, and invasion. RNAseq/biochemical studies revealed potent ligand-independent/-dependent PR actions, progestin-induced regulation of the DREAM quiescence complex, and cell cycle target genes through enhanced complex formation and chromatin recruitment. Disruption of DREAM/DYRK1s by pharmacological inhibition, HPV E6/E7 expression, or DYRK1A/B depletion blocked progestin-induced cell arrest and attenuated PR-driven gene expression and associated OC phenotypes. CONCLUSION Activated PRs support quiescence and pro-survival/pro-dissemination cell behaviors that may contribute to early HGSC progression. Our data support an alternative perspective on the tenet that progesterone always confers protection against OC. STICs can reside undetected for decades prior to invasive disease; our studies reveal clinical opportunities to prevent the ultimate development of HGSC by targeting PRs, DREAM, and/or DYRKs.
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Affiliation(s)
- Laura J Mauro
- University of Minnesota, Masonic Cancer Center, Minneapolis, MN 55455, USA
- University of Minnesota, Department of Animal Science, St. Paul, MN 55108, USA
| | - Megan I Seibel
- University of Minnesota, Masonic Cancer Center, Minneapolis, MN 55455, USA
| | - Caroline H Diep
- University of Minnesota, Masonic Cancer Center, Minneapolis, MN 55455, USA
| | - Angela Spartz
- University of Minnesota, Masonic Cancer Center, Minneapolis, MN 55455, USA
| | | | - Hari Singhal
- Northwestern University, Department of Surgery, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Elizabeth M Swisher
- University of Washington Seattle, Dept Obstetrics & Gynecology, Division of Gynecologic Oncology, Seattle, WA 98109, USA
| | - Lauren E Schwartz
- University of Pennsylvania, Dept of Pathology and Laboratory Medicine, Philadelphia, PA 19104, USA
| | - Ronny Drapkin
- University of Pennsylvania, Penn Ovarian Cancer Research Center, Dept Obstetrics & Gynecology, Philadelphia, PA 19104, USA
| | - Siddharth Saini
- Virginia Commonwealth University, Massey Cancer Center, Dept. Internal Medicine, Division of Hematology, Oncology & Palliative Care, Richmond, VA 23298, USA
| | - Fatmata Sesay
- Virginia Commonwealth University, Massey Cancer Center, Dept. Internal Medicine, Division of Hematology, Oncology & Palliative Care, Richmond, VA 23298, USA
| | - Larisa Litovchick
- Virginia Commonwealth University, Massey Cancer Center, Dept. Internal Medicine, Division of Hematology, Oncology & Palliative Care, Richmond, VA 23298, USA
| | - Carol A Lange
- University of Minnesota, Masonic Cancer Center, Minneapolis, MN 55455, USA
- University of Minnesota, Dept Medicine, Division of Hematology, Oncology & Transplantation, Minneapolis, MN 55455, USA
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9
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Insulin receptor substrate-1 (IRS-1) mediates progesterone receptor-driven stemness and endocrine resistance in oestrogen receptor+ breast cancer. Br J Cancer 2021; 124:217-227. [PMID: 33144693 PMCID: PMC7782753 DOI: 10.1038/s41416-020-01094-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/06/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Progesterone receptors (PR) are potent modifiers of endocrine responses. In aberrant signalling cancer contexts, phosphorylation events dramatically alter steroid hormone receptor action. METHODS The transcriptomes of primary tumours and metastases in mice harbouring ER+ breast cancer patient-derived xenografts (PDXs) were analysed following single-cell RNAseq. In vitro assays were employed to delineate mechanisms of endocrine resistance and stemness. RESULTS A 16-gene phospho-Ser294 PR (p-PR) signature predicted poor outcome in ER+ breast cancer. Relative to primary PDX tumours, metastatic lesions expressed abundant p-PR and exhibited an activated PR gene programme with elevated expression of PGR and IRS-1. Breast cancer models of activated PR lost the expression of IGF1R and acquired insulin hypersensitivity with tamoxifen insensitivity. Activated p-PR+ breast cancer cells formed increased tumourspheres with enlarged ALDH+ and CD24-/CD44 populations. E2 induced PR/IRS-1 interaction and exchange of IGF1Rβ for IRS-1 in p-PR-containing transcriptional complexes. Inhibition of IRS-1 or IR and inducible IRS-1 knockdown reduced tumourspheres. Endocrine-resistant models of luminal B breast cancer induced p-PR in 3D cultures and required PR and IRS-1 for tumoursphere formation. CONCLUSIONS Phospho-PR-B cooperates with IRS-1 to promote outgrowth of endocrine-resistant and stem-like breast cancer cells. Targeting phospho-PR/IRS-1 crosstalk may block the emergence of endocrine resistance.
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10
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Vella V, De Francesco EM, Lappano R, Muoio MG, Manzella L, Maggiolini M, Belfiore A. Microenvironmental Determinants of Breast Cancer Metastasis: Focus on the Crucial Interplay Between Estrogen and Insulin/Insulin-Like Growth Factor Signaling. Front Cell Dev Biol 2020; 8:608412. [PMID: 33364239 PMCID: PMC7753049 DOI: 10.3389/fcell.2020.608412] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
The development and progression of the great majority of breast cancers (BCs) are mainly dependent on the biological action elicited by estrogens through the classical estrogen receptor (ER), as well as the alternate receptor named G-protein–coupled estrogen receptor (GPER). In addition to estrogens, other hormones and growth factors, including the insulin and insulin-like growth factor system (IIGFs), play a role in BC. IIGFs cooperates with estrogen signaling to generate a multilevel cross-communication that ultimately facilitates the transition toward aggressive and life-threatening BC phenotypes. In this regard, the majority of BC deaths are correlated with the formation of metastatic lesions at distant sites. A thorough scrutiny of the biological and biochemical events orchestrating metastasis formation and dissemination has shown that virtually all cell types within the tumor microenvironment work closely with BC cells to seed cancerous units at distant sites. By establishing an intricate scheme of paracrine interactions that lead to the expression of genes involved in metastasis initiation, progression, and virulence, the cross-talk between BC cells and the surrounding microenvironmental components does dictate tumor fate and patients’ prognosis. Following (i) a description of the main microenvironmental events prompting BC metastases and (ii) a concise overview of estrogen and the IIGFs signaling and their major regulatory functions in BC, here we provide a comprehensive analysis of the most recent findings on the role of these transduction pathways toward metastatic dissemination. In particular, we focused our attention on the main microenvironmental targets of the estrogen-IIGFs interplay, and we recapitulated relevant molecular nodes that orientate shared biological responses fostering the metastatic program. On the basis of available studies, we propose that a functional cross-talk between estrogens and IIGFs, by affecting the BC microenvironment, may contribute to the metastatic process and may be regarded as a novel target for combination therapies aimed at preventing the metastatic evolution.
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Affiliation(s)
- Veronica Vella
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | - Ernestina Marianna De Francesco
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | - Rosamaria Lappano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Maria Grazia Muoio
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy.,Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Livia Manzella
- Center of Experimental Oncology and Hematology, Azienda Ospedaliera Universitaria (A.O.U.) Policlinico Vittorio Emanuele, Catania, Italy.,Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Marcello Maggiolini
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Antonino Belfiore
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
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11
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Tang X, Xiao Q, Yu K. Breast Cancer Candidate Gene Detection Through Integration of Subcellular Localization Data With Protein–Protein Interaction Networks. IEEE Trans Nanobioscience 2020; 19:556-561. [DOI: 10.1109/tnb.2020.2990178] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Dwyer AR, Truong TH, Ostrander JH, Lange CA. 90 YEARS OF PROGESTERONE: Steroid receptors as MAPK signaling sensors in breast cancer: let the fates decide. J Mol Endocrinol 2020; 65:T35-T48. [PMID: 32209723 PMCID: PMC7329584 DOI: 10.1530/jme-19-0274] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 03/25/2020] [Indexed: 12/12/2022]
Abstract
Steroid hormone receptors (SRs) are classically defined as ligand-activated transcription factors that function as master regulators of gene programs important for a wide range of processes governing adult physiology, development, and cell or tissue homeostasis. A second function of SRs includes the ability to activate cytoplasmic signaling pathways. Estrogen (ER), androgen (AR), and progesterone (PR) receptors bind directly to membrane-associated signaling molecules including mitogenic protein kinases (i.e. c-SRC and AKT), G-proteins, and ion channels to mediate context-dependent actions via rapid activation of downstream signaling pathways. In addition to making direct contact with diverse signaling molecules, SRs are further fully integrated with signaling pathways by virtue of their N-terminal phosphorylation sites that act as regulatory hot-spots capable of sensing the signaling milieu. In particular, ER, AR, PR, and closely related glucocorticoid receptors (GR) share the property of accepting (i.e. sensing) ligand-independent phosphorylation events by proline-directed kinases in the MAPK and CDK families. These signaling inputs act as a 'second ligand' that dramatically impacts cell fate. In the face of drugs that reliably target SR ligand-binding domains to block uncontrolled cancer growth, ligand-independent post-translational modifications guide changes in cell fate that confer increased survival, EMT, migration/invasion, stemness properties, and therapy resistance of non-proliferating SR+ cancer cell subpopulations. The focus of this review is on MAPK pathways in the regulation of SR+ cancer cell fate. MAPK-dependent phosphorylation of PR (Ser294) and GR (Ser134) will primarily be discussed in light of the need to target changes in breast cancer cell fate as part of modernized combination therapies.
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Affiliation(s)
- Amy R. Dwyer
- Masonic Cancer Center, University of Minnesota, Minneapolis MN 55455
| | - Thu H. Truong
- Masonic Cancer Center, University of Minnesota, Minneapolis MN 55455
| | - Julie H. Ostrander
- Masonic Cancer Center, University of Minnesota, Minneapolis MN 55455
- Department of Medicine (Division of Hematology, Oncology, and Transplantation), University of Minnesota, Minneapolis MN 55455
| | - Carol A. Lange
- Masonic Cancer Center, University of Minnesota, Minneapolis MN 55455
- Department of Medicine (Division of Hematology, Oncology, and Transplantation), University of Minnesota, Minneapolis MN 55455
- Department of Pharmacology, University of Minnesota, Minneapolis MN 55455
- Corresponding author: Carol A Lange, Professor, ; 612-626-0621 (phone), University of Minnesota Masonic Cancer Center, Delivery Code 2812, Cancer and Cardiovascular Research Building, 2231 6th St SE, Minneapolis, MN 55455, USA
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13
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Zhao F, Yang G, Feng M, Cao Z, Liu Y, Qiu J, You L, Zheng L, Zhang T, Zhao Y. Expression, function and clinical application of stanniocalcin-1 in cancer. J Cell Mol Med 2020; 24:7686-7696. [PMID: 32468698 PMCID: PMC7348177 DOI: 10.1111/jcmm.15348] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/10/2019] [Accepted: 10/19/2019] [Indexed: 12/13/2022] Open
Abstract
The glycoprotein stanniocalcin-1 functions as a regulatory endocrine hormone that maintains the balance of calcium and phosphorus in bony fish and as a paracrine/autocrine factor involved in many physiological/pathological processes in humans, including carcinogenesis. In this review, we provide an overview of (a) the possible mechanisms through which STC1 affects the malignant properties of cancer, (b) transcriptional and post-transcriptional regulation pathways of STC1 and (c) the potential clinical relevance of STC1 as a cancer biomarker and even a therapeutic target in the future. Exploring the role of STC1 in cancer development may provide a better understanding of the tumorigenesis process in humans and may facilitate finding an effective therapeutic method against cancer.
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Affiliation(s)
- Fangyu Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Gang Yang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mengyu Feng
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhe Cao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yueze Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiangdong Qiu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei You
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lianfang Zheng
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Taiping Zhang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Clinical Immunology Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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14
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Perez Kerkvliet C, Dwyer AR, Diep CH, Oakley RH, Liddle C, Cidlowski JA, Lange CA. Glucocorticoid receptors are required effectors of TGFβ1-induced p38 MAPK signaling to advanced cancer phenotypes in triple-negative breast cancer. Breast Cancer Res 2020; 22:39. [PMID: 32357907 PMCID: PMC7193415 DOI: 10.1186/s13058-020-01277-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Altered signaling pathways typify breast cancer and serve as direct inputs to steroid hormone receptor sensors. We previously reported that phospho-Ser134-GR (pS134-GR) species are elevated in triple-negative breast cancer (TNBC) and cooperate with hypoxia-inducible factors, providing a novel avenue for activation of GR in response to local or cellular stress. METHODS We probed GR regulation by factors (cytokines, growth factors) that are rich within the tumor microenvironment (TME). TNBC cells harboring endogenous wild-type (wt) or S134A-GR species were created by CRISPR/Cas knock-in and subjected to transwell migration, invasion, soft-agar colony formation, and tumorsphere assays. RNA-seq was employed to identify pS134-GR target genes that are regulated both basally (intrinsic) or by TGFβ1 in the absence of exogenously added GR ligands. Regulation of selected basal and TGFβ1-induced pS134-GR target genes was validated by qRT-PCR and chromatin immunoprecipitation assays. Bioinformatics tools were used to probe public data sets for expression of pS134-GR 24-gene signatures. RESULTS In the absence of GR ligands, GR is transcriptionally activated via p38-dependent phosphorylation of Ser134 as a mechanism of homeostatic stress-sensing and regulated upon exposure of TNBC cells to TME-derived agents. The ligand-independent pS134-GR transcriptome encompasses TGFβ1 and MAPK signaling gene sets associated with TNBC cell survival and migration/invasion. Accordingly, pS134-GR was essential for TNBC cell anchorage-independent growth in soft-agar, migration, invasion, and tumorsphere formation, an in vitro readout of cancer stemness properties. Both pS134-GR and expression of the MAPK-scaffolding molecule 14-3-3ζ were essential for a functionally intact p38 MAPK signaling pathway downstream of MAP3K5/ASK1, indicative of a feedforward signaling loop wherein self-perpetuated GR phosphorylation enables cancer cell autonomy. A 24-gene pS134-GR-dependent signature induced by TGFβ1 predicts shortened overall survival in breast cancer patients. CONCLUSIONS Phospho-S134-GR is a critical downstream effector of p38 MAPK signaling and TNBC migration/invasion, survival, and stemness properties. Our studies define a ligand-independent role for GR as a homeostatic "sensor" of intrinsic stimuli as well as extrinsic factors rich within the TME (TGFβ1) that enable potent activation of the p38 MAPK stress-sensing pathway and nominate pS134-GR as a therapeutic target in aggressive TNBC.
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Affiliation(s)
- Carlos Perez Kerkvliet
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, University of Minnesota Masonic Cancer Center, Delivery Code 2812 Cancer and Cardiovascular Research Building; Suite 3-126 2231 6th St SE, Minneapolis, MN 55455 USA
| | - Amy R. Dwyer
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, University of Minnesota Masonic Cancer Center, Delivery Code 2812 Cancer and Cardiovascular Research Building; Suite 3-126 2231 6th St SE, Minneapolis, MN 55455 USA
| | - Caroline H. Diep
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, University of Minnesota Masonic Cancer Center, Delivery Code 2812 Cancer and Cardiovascular Research Building; Suite 3-126 2231 6th St SE, Minneapolis, MN 55455 USA
| | - Robert H. Oakley
- Department of Health and Human Services, Laboratory of Signal Transduction, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709 USA
| | - Christopher Liddle
- Storr Liver Centre, The Westmead Institute for Medical Research and Westmead Hospital, University of Sydney, Darlington, NSW 2006 Australia
| | - John A. Cidlowski
- Department of Health and Human Services, Laboratory of Signal Transduction, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709 USA
| | - Carol A. Lange
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, University of Minnesota Masonic Cancer Center, Delivery Code 2812 Cancer and Cardiovascular Research Building; Suite 3-126 2231 6th St SE, Minneapolis, MN 55455 USA
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15
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Chen F, Zhang Z, Pu F. Role of stanniocalcin-1 in breast cancer. Oncol Lett 2019; 18:3946-3953. [PMID: 31579413 PMCID: PMC6757304 DOI: 10.3892/ol.2019.10777] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 07/16/2019] [Indexed: 12/28/2022] Open
Abstract
Breast cancer is a highly heterogeneous disease consisting of five disease subtypes with distinct histological characteristics, clinical behaviors and prognostic features. Stanniocalcin-1 (STC1) is a secreted glycoprotein hormone that has been demonstrated to regulate calcium and phosphate homeostasis. Mammalian STC1 is expressed in various tissues and is implicated in multiple physiological and pathophysiological processes. In addition, growing evidence has suggested that STC1 serves an oncogenic role in a number of different types of tumor. However, the role of STC1 in breast cancer is complex, considering that some studies have shown that it exerts an oncogenic role, whereas other studies have demonstrated the opposite. The aim of the present review article is to evaluate the currently available data on mammalian STC1 and discuss its potential roles in each subtype of breast cancer.
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Affiliation(s)
- Fengxia Chen
- Department of Medical Oncology, General Hospital of The Yangtze River Shipping, Wuhan, Hubei 430010, P.R. China.,Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Zhicai Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Feifei Pu
- Department of Orthopedics, Wuhan No. 1 Hospital, Wuhan Integrated Traditional Chinese Medicine and Western Medicine Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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16
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Asavasupreechar T, Saito R, Edwards DP, Sasano H, Boonyaratanakornkit V. Progesterone receptor isoform B expression in pulmonary neuroendocrine cells decreases cell proliferation. J Steroid Biochem Mol Biol 2019; 190:212-223. [PMID: 30926428 PMCID: PMC9968952 DOI: 10.1016/j.jsbmb.2019.03.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/18/2019] [Accepted: 03/25/2019] [Indexed: 11/22/2022]
Abstract
The progesterone receptor (PR) has been reported to play important roles in lung development and function, such as alveolarization, alveolar fluid clearance (AFC) and upper airway dilator muscle activity. In the lung, pulmonary neuroendocrine cells (PNECs) are important in the etiology and progression of lung neuroendocrine tumors (NETs). Women with lung NETs had significantly better survival rates than men, suggesting that sex steroids and their receptors, such as the PR, could be involved in the progression of lung NETs. The PR exists as two major isoforms, PRA and PRB. How the expression of different PR isoforms affects proliferation and the development of lung NETs is not well understood. To determine the role of the PR isoforms in PNECs, we constructed H727 lung NET cell models expressing PRB, PRA, Green Fluorescence Protein (GFP) (control). The expression of PRB significantly inhibited H727 cell proliferation better than that of PRA in the absence of progestin. The expression of the unrelated protein, GFP, had little to no effect on H727 cell proliferation. To better understand the role of the PR isoform in PNECs, we examined PR isoform expression in PNECs in lung tissues. A monoclonal antibody specific to the N-terminus of PRB (250H11 mAb) was developed to specifically recognize PRB, while a monoclonal antibody specific to a common N-terminus epitope present in both PRA and PRB (1294 mAb) was used to detect both PRA and PRB. Using these PR and PRB-specific antibodies, we demonstrated that PR (PRA&PRB) and PRB were expressed in the PNECs of the normal fetal and adult lung, with significantly higher PR expression in the fetal lung. Interestingly, PRB expression in the normal lung was associated with lower cell proliferation than PR expression, suggesting a distinct role of PRB in the PNECs. A better understanding of the molecular mechanism of PR and PR isoform signaling in lung NET cells may help in developing novel therapeutic strategies that will benefit lung NET patients in the future.
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Affiliation(s)
- Teeranut Asavasupreechar
- Graduate Program in Clinical Biochemistry and Molecular Medicine, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Ryoko Saito
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Dean P Edwards
- Departments of Molecular & Cellular Biology and Pathology & Immunology, Baylor College of Medicine, Houston, USA
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Viroj Boonyaratanakornkit
- Graduate Program in Clinical Biochemistry and Molecular Medicine, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand; Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand; Age-Related Inflammation and Degeneration Research Unit, Chulalongkorn University, Bangkok, Thailand.
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17
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Fritz AJ, Gillis NE, Gerrard DL, Rodriguez PD, Hong D, Rose JT, Ghule PN, Bolf EL, Gordon JA, Tye CE, Boyd JR, Tracy KM, Nickerson JA, van Wijnen AJ, Imbalzano AN, Heath JL, Frietze SE, Zaidi SK, Carr FE, Lian JB, Stein JL, Stein GS. Higher order genomic organization and epigenetic control maintain cellular identity and prevent breast cancer. Genes Chromosomes Cancer 2019; 58:484-499. [PMID: 30873710 DOI: 10.1002/gcc.22731] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/07/2019] [Accepted: 01/07/2019] [Indexed: 12/24/2022] Open
Abstract
Cells establish and sustain structural and functional integrity of the genome to support cellular identity and prevent malignant transformation. In this review, we present a strategic overview of epigenetic regulatory mechanisms including histone modifications and higher order chromatin organization (HCO) that are perturbed in breast cancer onset and progression. Implications for dysfunctions that occur in hormone regulation, cell cycle control, and mitotic bookmarking in breast cancer are considered, with an emphasis on epithelial-to-mesenchymal transition and cancer stem cell activities. The architectural organization of regulatory machinery is addressed within the contexts of translating cancer-compromised genomic organization to advances in breast cancer risk assessment, diagnosis, prognosis, and identification of novel therapeutic targets with high specificity and minimal off target effects.
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Affiliation(s)
- A J Fritz
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - N E Gillis
- University of Vermont Cancer Center, Burlington, Vermont.,Department of Pharmacology, Larner college of Medicine, University of Vermont, Burlington, Vermont
| | - D L Gerrard
- Cellular Molecular Biomedical Sciences Program, University of Vermont, Burlington, Vermont.,Department of Biomedical and Health Sciences, University of Vermont, Burlington, Vermont
| | - P D Rodriguez
- Cellular Molecular Biomedical Sciences Program, University of Vermont, Burlington, Vermont.,Department of Biomedical and Health Sciences, University of Vermont, Burlington, Vermont
| | - D Hong
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, Massachusetts
| | - J T Rose
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - P N Ghule
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - E L Bolf
- University of Vermont Cancer Center, Burlington, Vermont.,Department of Pharmacology, Larner college of Medicine, University of Vermont, Burlington, Vermont
| | - J A Gordon
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - C E Tye
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - J R Boyd
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - K M Tracy
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - J A Nickerson
- Division of Genes and Development of the Department of Pediatrics, University of Massachusetts Medical School, Worcester, Massachusetts
| | - A J van Wijnen
- Orthopedic Surgery and Biochemistry and Molecular Biology, Mayo Clinic Minnesota, Rochester, Minnesota
| | - A N Imbalzano
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - J L Heath
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont.,Department of Pediatrics, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - S E Frietze
- Cellular Molecular Biomedical Sciences Program, University of Vermont, Burlington, Vermont.,Department of Biomedical and Health Sciences, University of Vermont, Burlington, Vermont
| | - S K Zaidi
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - F E Carr
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont.,Department of Pharmacology, Larner college of Medicine, University of Vermont, Burlington, Vermont
| | - J B Lian
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - J L Stein
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
| | - G S Stein
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,University of Vermont Cancer Center, Burlington, Vermont
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18
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Unliganded Progesterone Receptor Governs Estrogen Receptor Gene Expression by Regulating DNA Methylation in Breast Cancer Cells. Cancers (Basel) 2018; 10:cancers10100371. [PMID: 30301163 PMCID: PMC6210734 DOI: 10.3390/cancers10100371] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/01/2018] [Indexed: 01/18/2023] Open
Abstract
Breast cancer prognosis and response to endocrine therapy strongly depends on the expression of the estrogen and progesterone receptors (ER and PR, respectively). Although much is known about ERα gene (ESR1) regulation after hormonal stimulation, how it is regulated in hormone-free condition is not fully understood. We used ER-/PR-positive breast cancer cells to investigate the role of PR in ESR1 regulation in the absence of hormones. We show that PR binds to the low-methylated ESR1 promoter and maintains both gene expression and DNA methylation of the ESR1 locus in hormone-deprived breast cancer cells. Depletion of PR reduces ESR1 expression, with a concomitant increase in gene promoter methylation. The high amount of methylation in the ESR1 promoter of PR-depleted cells persists after the stable re-expression of PR and inhibits PR binding to this genomic region. As a consequence, the rescue of PR expression in PR-depleted cells is insufficient to restore ESR1 expression. Consistently, DNA methylation impedes PR binding to consensus progesterone responsive elements. These findings contribute to understanding the complex crosstalk between PR and ER and suggest that the analysis of ESR1 promoter methylation in breast cancer cells can help to design more appropriate targeted therapies for breast cancer patients.
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19
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Proietti CJ, Cenciarini ME, Elizalde PV. Revisiting progesterone receptor (PR) actions in breast cancer: Insights into PR repressive functions. Steroids 2018; 133:75-81. [PMID: 29317254 DOI: 10.1016/j.steroids.2017.12.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/08/2017] [Accepted: 12/23/2017] [Indexed: 12/18/2022]
Abstract
Progesterone receptor (PR) is a master regulator in female reproductive tissues that controls developmental processes and proliferation and differentiation during the reproductive cycle and pregnancy. PR also plays a role in progression of endocrine-dependent breast cancer. As a member of the nuclear receptor family of ligand-dependent transcription factors, the main action of PR is to regulate networks of target gene expression in response to binding its cognate steroid hormone, progesterone. Liganded-PR transcriptional activation has been thoroughly studied and associated mechanisms have been described while progesterone-mediated repression has remained less explored. The present work summarizes recent advances in the understanding of how PR-mediated repression is accomplished in breast cancer cells and highlights the significance of fully understanding the determinants of context-dependent PR action.
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Affiliation(s)
- Cecilia J Proietti
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Vuelta de Obligado 2490, Buenos Aires C1428ADN, Argentina.
| | - Mauro E Cenciarini
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Vuelta de Obligado 2490, Buenos Aires C1428ADN, Argentina
| | - Patricia V Elizalde
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Vuelta de Obligado 2490, Buenos Aires C1428ADN, Argentina
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20
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Knutson TP, Truong TH, Ma S, Brady NJ, Sullivan ME, Raj G, Schwertfeger KL, Lange CA. Posttranslationally modified progesterone receptors direct ligand-specific expression of breast cancer stem cell-associated gene programs. J Hematol Oncol 2017; 10:89. [PMID: 28412963 PMCID: PMC5392969 DOI: 10.1186/s13045-017-0462-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 04/03/2017] [Indexed: 12/18/2022] Open
Abstract
Background Estrogen and progesterone are potent breast mitogens. In addition to steroid hormones, multiple signaling pathways input to estrogen receptor (ER) and progesterone receptor (PR) actions via posttranslational events. Protein kinases commonly activated in breast cancers phosphorylate steroid hormone receptors (SRs) and profoundly impact their activities. Methods To better understand the role of modified PRs in breast cancer, we measured total and phospho-Ser294 PRs in 209 human breast tumors represented on 2754 individual tissue spots within a tissue microarray and assayed the regulation of this site in human tumor explants cultured ex vivo. To complement this analysis, we assayed PR target gene regulation in T47D luminal breast cancer models following treatment with progestin (promegestone; R5020) and antiprogestins (mifepristone, onapristone, or aglepristone) in conditions under which the receptor is regulated by Lys388 SUMOylation (K388 intact) or is SUMO-deficient (via K388R mutation to mimic persistent Ser294 phosphorylation). Selected phospho-PR-driven target genes were validated by qRT-PCR and following RUNX2 shRNA knockdown in breast cancer cell lines. Primary and secondary mammosphere assays were performed to implicate phospho-Ser294 PRs, epidermal growth factor signaling, and RUNX2 in breast cancer stem cell biology. Results Phospho-Ser294 PR species were abundant in a majority (54%) of luminal breast tumors, and PR promoter selectivity was exquisitely sensitive to posttranslational modifications. Phospho-PR expression and target gene programs were significantly associated with invasive lobular carcinoma (ILC). Consistent with our finding that activated phospho-PRs undergo rapid ligand-dependent turnover, unique phospho-PR gene signatures were most prevalent in breast tumors clinically designated as PR-low to PR-null (luminal B) and included gene sets associated with cancer stem cell biology (HER2, PAX2, AHR, AR, RUNX). Validation studies demonstrated a requirement for RUNX2 in the regulation of selected phospho-PR target genes (SLC37A2). In vitro mammosphere formation assays support a role for phospho-Ser294-PRs via growth factor (EGF) signaling as well as RUNX2 as potent drivers of breast cancer stem cell fate. Conclusions We conclude that PR Ser294 phosphorylation is a common event in breast cancer progression that is required to maintain breast cancer stem cell fate, in part via cooperation with growth factor-initiated signaling pathways and key phospho-PR target genes including SLC37A2 and RUNX2. Clinical measurement of phosphorylated PRs should be considered a useful marker of breast tumor stem cell potential. Alternatively, unique phospho-PR target gene sets may provide useful tools with which to identify patients likely to respond to selective PR modulators that block PR Ser294 phosphorylation as part of rational combination (i.e., with antiestrogens) endocrine therapies designed to durably block breast cancer recurrence. Electronic supplementary material The online version of this article (doi:10.1186/s13045-017-0462-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Todd P Knutson
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, Masonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer and Cardiovascular Research Building, 2231 6th St SE, Minneapolis, MN, 55455, USA
| | - Thu H Truong
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, Masonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer and Cardiovascular Research Building, 2231 6th St SE, Minneapolis, MN, 55455, USA
| | - Shihong Ma
- Department of Urology, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd, J8.130C, Dallas, TX, 75390-9110, USA
| | - Nicholas J Brady
- Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Megan E Sullivan
- Department of Pathology, Evanston Hospital, University of Chicago, NorthShore University HealthSystem, Evanston, IL, 60201, USA
| | - Ganesh Raj
- Department of Urology, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd, J8.130C, Dallas, TX, 75390-9110, USA
| | - Kathryn L Schwertfeger
- Department of Laboratory Medicine and Pathology, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Carol A Lange
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, Masonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer and Cardiovascular Research Building, 2231 6th St SE, Minneapolis, MN, 55455, USA.
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21
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Chu SJ, Zhang J, Zhang R, Lu WW, Zhu JS. Evolution and functions of stanniocalcins in cancer. Int J Immunopathol Pharmacol 2017; 28:14-20. [PMID: 25816401 DOI: 10.1177/0394632015572745] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Stanniocalcin (STC), first isolated from the corpuscles of stannius of teleost fishes, was originally known for its regulation on calcium/phosphate transport. Increasing evidence demonstrates that STCs display the important function in some physiological and pathological behaviors such as calcium regulation, oxidative stress, anti-inflammation, angiogenesis, ischemia reperfusion, nerve diseases, etc. Moreover, STCs are implicated in the development and progression of multiple malignancies through promoting cell growth, proliferation, invasion, metastasis, and apoptotic escape. Some studies have shown that NF-κB upregulates STC expression, thereby activating the downstream HIF-1/ERK1/2 signaling pathway, enhancing the transcriptional activity of tumor-related factors (MMP-2/9, cyclinD1, Bcl-2, N-cadherin, etc) and contributing to tumorigenesis. Here, this brief review describes recent progress of STCs in mammalians, focused mainly on their critical functions in cancer.
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Affiliation(s)
- S-J Chu
- Department of Gerontology, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai, PR China
| | - J Zhang
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai, PR China
| | - R Zhang
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai, PR China
| | - W-W Lu
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai, PR China
| | - J-S Zhu
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai, PR China
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22
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Transcriptional regulation of 5′-flanking regions of stanniocalcin genes by estrogen receptor and estrogen receptor-related receptor. Genes Genomics 2016. [DOI: 10.1007/s13258-016-0386-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Li Y, Ke Q, Shao Y, Zhu G, Li Y, Geng N, Jin F, Li F. GATA1 induces epithelial-mesenchymal transition in breast cancer cells through PAK5 oncogenic signaling. Oncotarget 2015; 6:4345-56. [PMID: 25726523 PMCID: PMC4414194 DOI: 10.18632/oncotarget.2999] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 12/21/2014] [Indexed: 11/25/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a key process in tumor metastatic cascade that is characterized by the loss of cell-cell junctions, resulting in the acquisition of migratory and invasive properties. E-cadherin is a major component of intercellular junctions and the reduction or loss of its expression is a hallmark of EMT. Transcription factor GATA1 has a critical anti-apoptotic role in breast cancer, but its function for metastasis has not been investigated. Here, we found that GATA1, as a novel E-cadherin repressor, promotes EMT in breast cancer cells. GATA1 binds to E-cadherin promoter, down-regulates E-cadherin expression, disrupts intercellular junction and promotes metastasis of breast cancer cell in vivo. Moreover, GATA1 is a new substrate of p21-activated kinase 5 (PAK5), which is phosphorylated on serine 161 and 187 (S161 and S187). GATA1 recruits HDAC3/4 to E-cadherin promoter, which is reduced by GATA1 S161A S187A mutant. These data indicate that phosphorylated GATA1 recruits more HDAC3/4 to promote transcriptional repression of E-cadherin, leading to the EMT of breast cancer cells. Our findings provide insights into the novel function of GATA1, contributing to a better understanding of the EMT, indicating that GATA1 and its phosphorylation may play an important role in the metastasis of breast cancer.
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Affiliation(s)
- Yang Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China
| | - Qiang Ke
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China
| | - Yangguang Shao
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China
| | - Ge Zhu
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China
| | - Yanshu Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China
| | - Nanxi Geng
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China
| | - Feng Jin
- Department of Breast Surgery, Department of Surgical Oncology, Research Unit of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Feng Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China
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24
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Proietti CJ, Izzo F, Díaz Flaqué MC, Cordo Russo R, Venturutti L, Mercogliano MF, De Martino M, Pineda V, Muñoz S, Guzmán P, Roa JC, Schillaci R, Elizalde PV. Heregulin Co-opts PR Transcriptional Action Via Stat3 Role As a Coregulator to Drive Cancer Growth. Mol Endocrinol 2015; 29:1468-85. [PMID: 26340407 DOI: 10.1210/me.2015-1170] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Accumulated findings have demonstrated the presence of bidirectional interactions between progesterone receptor (PR) and the ErbB family of receptor tyrosine kinases signaling pathways in breast cancer. We previously revealed signal transducer and activator of transcription 3 (Stat3) as a nodal convergence point between said signaling pathways proving that Stat3 is activated by one of the ErbBs' ligands, heregulin (HRG)β1 via ErbB2 and through the co-option of PR as a signaling molecule. Here, we found that HRGβ1 induced Stat3 recruitment to the promoters of the progestin-regulated cell cycle modulators Bcl-XL and p21(CIP1) and also stimulated Stat3 binding to the mouse mammary tumor virus promoter, which carries consensus progesterone response elements. Interestingly, HRGβ1-activated Stat3 displayed differential functions on PR activity depending on the promoter bound. Indeed, Stat3 was required for PR binding in bcl-X, p21(CIP1), and c-myc promoters while exerting a PR coactivator function on the mouse mammary tumor virus promoter. Stat3 also proved to be necessary for HRGβ1-induced in vivo tumor growth. Our results endow Stat3 a novel function as a coregulator of HRGβ1-activated PR to promote breast cancer growth. These findings underscore the importance of understanding the complex interactions between PR and other regulatory factors, such as Stat3, that contribute to determine the context-dependent transcriptional actions of PR.
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Affiliation(s)
- Cecilia J Proietti
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Franco Izzo
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - María Celeste Díaz Flaqué
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Rosalía Cordo Russo
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Leandro Venturutti
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - María Florencia Mercogliano
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Mara De Martino
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Viviana Pineda
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Sergio Muñoz
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Pablo Guzmán
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Juan C Roa
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Roxana Schillaci
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
| | - Patricia V Elizalde
- Instituto de Biología y Medicina Experimental (C.J.P., F.I., M.C.D.F., R.C.R., L.V., M.F.M., M.D.M., R.S., P.V.E.), National Council of Scientific Research, Buenos Aires, 1428 ADN Argentina; Departamento de Anatomía Patológica (Scientific and Technological Bioresource Nucleus) (V.P., S.M., P.G., J.C.R.), Universidad de La Frontera, Temuco, 8330024 Chile; Departamento de Anatomía Patológica (J.C.R.), Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile; and Advanced Center for Chronic Diseases (J.C.R.), Pontificia Universidad Católica de Chile, Santiago de Chile, 8330024 Chile
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25
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Abstract
Progesterone and progesterone receptors (PRs) are essential for the development and cyclical regulation of hormone-responsive tissues including the breast and reproductive tract. Altered functions of PR isoforms contribute to the pathogenesis of tumors that arise in these tissues. In the breast, progesterone acts in concert with estrogen to promote proliferative and pro-survival gene programs. In sharp contrast, progesterone inhibits estrogen-driven growth in the uterus and protects the ovary from neoplastic transformation. Progesterone-dependent actions and associated biology in diverse tissues and tumors are mediated by two PR isoforms, PR-A and PR-B. These isoforms are subject to altered transcriptional activity or expression levels, differential crosstalk with growth factor signaling pathways, and distinct post-translational modifications and cofactor-binding partners. Herein, we summarize and discuss the recent literature focused on progesterone and PR isoform-specific actions in breast, uterine, and ovarian cancers. Understanding the complexity of context-dependent PR actions in these tissues is critical to developing new models that will allow us to advance our knowledge base with the goal of revealing novel and efficacious therapeutic regimens for these hormone-responsive diseases.
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Affiliation(s)
- Caroline H Diep
- HematologyOncology, and Transplantation DivisionDepartments of MedicinePharmacologyMasonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer Cardiology Research Building, 2231 6th Street SE, Minneapolis, Minnesota 55455, USADivision of Physiology and GrowthDepartment of Animal Science, University of Minnesota, Minneapolis, Minnesota 55108, USA
| | - Andrea R Daniel
- HematologyOncology, and Transplantation DivisionDepartments of MedicinePharmacologyMasonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer Cardiology Research Building, 2231 6th Street SE, Minneapolis, Minnesota 55455, USADivision of Physiology and GrowthDepartment of Animal Science, University of Minnesota, Minneapolis, Minnesota 55108, USA
| | - Laura J Mauro
- HematologyOncology, and Transplantation DivisionDepartments of MedicinePharmacologyMasonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer Cardiology Research Building, 2231 6th Street SE, Minneapolis, Minnesota 55455, USADivision of Physiology and GrowthDepartment of Animal Science, University of Minnesota, Minneapolis, Minnesota 55108, USA
| | - Todd P Knutson
- HematologyOncology, and Transplantation DivisionDepartments of MedicinePharmacologyMasonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer Cardiology Research Building, 2231 6th Street SE, Minneapolis, Minnesota 55455, USADivision of Physiology and GrowthDepartment of Animal Science, University of Minnesota, Minneapolis, Minnesota 55108, USA
| | - Carol A Lange
- HematologyOncology, and Transplantation DivisionDepartments of MedicinePharmacologyMasonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer Cardiology Research Building, 2231 6th Street SE, Minneapolis, Minnesota 55455, USADivision of Physiology and GrowthDepartment of Animal Science, University of Minnesota, Minneapolis, Minnesota 55108, USA HematologyOncology, and Transplantation DivisionDepartments of MedicinePharmacologyMasonic Cancer Center, University of Minnesota, Delivery Code 2812, Cancer Cardiology Research Building, 2231 6th Street SE, Minneapolis, Minnesota 55455, USADivision of Physiology and GrowthDepartment of Animal Science, University of Minnesota, Minneapolis, Minnesota 55108, USA
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26
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Voellmy R, Bloom DC, Vilaboa N. A novel approach for addressing diseases not yielding to effective vaccination? Immunization by replication-competent controlled virus. Expert Rev Vaccines 2015; 14:637-51. [PMID: 25676927 DOI: 10.1586/14760584.2015.1013941] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Vaccination involves inoculation of a subject with a disabled disease-causing microbe or parts thereof. While vaccination has been highly successful, we still lack sufficiently effective vaccines for important infectious diseases. We propose that a more complete immune response than that elicited from a vaccine may be obtained from immunization with a disease-causing virus modified to subject replication-essential genes to the control of a gene switch activated by non-lethal heat in the presence of a drug-like compound. Upon inoculation, strictly localized replication of the virus would be triggered by a heat dose administered to the inoculation site. Activated virus would transiently replicate with an efficiency approaching that of the disease-causing virus and express all viral antigens. It may also vector heterologous antigens or control co-infecting microbes.
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Affiliation(s)
- Richard Voellmy
- Department of Physiological Sciences, University of Florida College of Veterinary Sciences, Gainesville, FL, USA
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27
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Bravo ML, Pinto MP, Gonzalez I, Oliva B, Kato S, Cuello MA, Lange CA, Owen GI. Progesterone regulation of tissue factor depends on MEK1/2 activation and requires the proline-rich site on progesterone receptor. Endocrine 2015; 48:309-20. [PMID: 24853881 DOI: 10.1007/s12020-014-0288-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 05/05/2014] [Indexed: 10/25/2022]
Abstract
To characterize the molecular mechanism and map the response element used by progesterone (P) to upregulate tissue factor (TF) in breast cancer cells. TF expression and mRNA levels were analyzed in breast cancer ZR-75 and T47D cells, using Western blot and real-time PCR, respectively. Mapping of the TF promoter was performed using luciferase vectors. Progesterone receptor (PR) and specificity protein 1 (Sp1) binding to the TF promoter were analyzed by chromatin immuno precipitation assay. Specific or selective inhibitors were used for the MEK1/2 and the c-Src pathways (UO126 and PP2, respectively). TF mRNA increase peaks at 18 h following P treatment in ZR-75 and T47D cells. P upregulation occurs via a transcriptional mechanism that depends on PR and MEK1/2 activation, PR and Sp1 transcription factors bind to a region in the TF promoter that contains three Sp1 sites. TF mRNA upregulation requires an intact PR proline-rich site (mPRO), but it is independent from c-Src. TF upregulation by P is mediated by Sp1 sites in the TF promoter region. Transcriptional upregulation in breast cancer cells occurs via a new mechanism that requires MEK1/2 activation and the mPRO site but independent of c-Src activity. PR Phosphorylation at serine 294 and 345 is not essential.
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Affiliation(s)
- Maria Loreto Bravo
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile
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28
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Fang Z, Tian Z, Luo K, Song H, Yi J. Clinical significance of stanniocalcin expression in tissue and serum of gastric cancer patients. Chin J Cancer Res 2014; 26:602-10. [PMID: 25400427 DOI: 10.3978/j.issn.1000-9604.2014.10.08] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 09/25/2014] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Stanniocalcin (STC) has been recognized as a potential biomarker in a variety of cancers. The aim of this study was to examine STC1 and STC2 expression in tumor and serum samples from gastric cancer (GC) patients. METHODS A total of 83 GC patients treated with radical resection were enrolled in this study. Immunohistochemistry was used to detect STC protein expression in paired tumor and adjacent normal tissues. Serum STC levels were determined by enzyme-linked immunosorbent assay (ELISA). The receiver operating characteristics (ROC) curve was constructed to describe diagnostic specificity and sensitivity. RESULTS Both of STC1 and STC2 protein expression were upregulated in GC tissues compared with that in normal ones. Moreover, the high/moderate of STC1 protein was significantly associated with lymph metastasis, clinical stage and adverse 3-year progression-free survival (PFS). In addition, serum STC1 and STC2 expression in GC patients were much higher than that in patients with benign gastric disease, which decreased at postoperative 7-10 days. The sensitivity of serum STC protein also showed superiority over CEA and CA19-9. CONCLUSIONS STC upregulation plays an important role in GC development, and serum STC1 and STC2 might function as promising tumor markers for GC diagnosis and prognosis.
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Affiliation(s)
- Zheng Fang
- 1 Department of General Surgery, 101 Hospital of People's Liberation Army, Wuxi 214044, China ; 2 Department of Medical Oncology, 3 Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Zhiqiang Tian
- 1 Department of General Surgery, 101 Hospital of People's Liberation Army, Wuxi 214044, China ; 2 Department of Medical Oncology, 3 Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Kunlun Luo
- 1 Department of General Surgery, 101 Hospital of People's Liberation Army, Wuxi 214044, China ; 2 Department of Medical Oncology, 3 Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Haizhu Song
- 1 Department of General Surgery, 101 Hospital of People's Liberation Army, Wuxi 214044, China ; 2 Department of Medical Oncology, 3 Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Jun Yi
- 1 Department of General Surgery, 101 Hospital of People's Liberation Army, Wuxi 214044, China ; 2 Department of Medical Oncology, 3 Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
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29
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Chang ACM, Doherty J, Huschtscha LI, Redvers R, Restall C, Reddel RR, Anderson RL. STC1 expression is associated with tumor growth and metastasis in breast cancer. Clin Exp Metastasis 2014; 32:15-27. [PMID: 25391215 DOI: 10.1007/s10585-014-9687-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 10/23/2014] [Indexed: 12/26/2022]
Abstract
Stanniocalcin-1 (STC1) is a secreted glycoprotein implicated in several pathologies including retinal degeneration, cerebral ischemia, angiogenesis and inflammation. Aberrant STC1 expression has been reported in breast cancer but the significance of this is not clear. High levels of STC1 expression were found in the aggressive 4T1 murine mammary tumor cells and in the MDA-MB-231 human breast cancer line. To investigate its significance, stable clones with STC1 down-regulation using shRNA were generated in both tumor models. The consequences of STC1 down-regulation on cell proliferation, chemotactic invasion, tumor growth and metastasis were assessed. Down-regulation of STC1 in the 4T1 murine mammary tumor cells had a major impact on mammary tumor growth. This observation was replicated in a second tumor model with the MDA-MB-231 human breast cancer line, with a significant reduction in primary tumor formation and a major inhibition of metastasis as well. Interestingly, in both models, proliferation in vitro was not affected. Subsequent microarray gene expression profiling identified 30 genes to be significantly altered by STC1 down-regulation, the majority of which are associated with known hallmarks of carcinogenesis. Furthermore, bioinformatic analysis of breast cancer datasets revealed that high expression of STC1 is associated with poor survival. This is the first study to show definitively that STC1 plays an oncogenic role in breast cancer, and indicates that STC1 could be a potential therapeutic target for treatment of breast cancer patients.
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Affiliation(s)
- Andy C-M Chang
- Cancer Research Unit, Children's Medical Research Institute, Westmead, NSW, Australia
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30
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Gracanin A, Voorwald FA, van Wolferen M, Timmermans-Sprang E, Mol JA. Marginal activity of progesterone receptor B (PR-B) in dogs but high incidence of mammary cancer. J Steroid Biochem Mol Biol 2014; 144 Pt B:492-9. [PMID: 25158022 DOI: 10.1016/j.jsbmb.2014.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 03/18/2014] [Accepted: 08/21/2014] [Indexed: 12/17/2022]
Abstract
Progesterone plays an important role in the normal development and carcinogenesis of the mammary gland. In vitro studies have shown that the canine progesterone receptor B (cPR-B), which is essential for mammary development in the mouse, does not transactivate reporter constructs containing progesterone response elements. Therefore, the question was raised whether the cPR-B was completely devoid of transactivation potential of endogenous progesterone regulated genes. Canine mammary cell lines expressing doxycycline-inducible cPR-B, human PR-B or a chimera in which the canine B-upstream segment (BUS) was replaced by a human BUS were treated for 24h with doxycycline, progesterone or a combination of the two. The expression profiling was subsequently performed using a dog-specific microarray and miRNA primers. Incubation of stably transfected cell lines with doxycycline or progesterone alone, did not change expression of any endogenous gene. Expression of activated human PR-B or the chimera of human BUS with the canine PR resulted in differential expression of >500 genes whereas the activated cPR-B regulated only a subset of 40 genes and to a limited extent. The relevance of the marginal transactivation potential or the consequence of a lack of cPR-B function for the carcinogenesis of mammary gland tumors is discussed.
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Affiliation(s)
- Ana Gracanin
- Department of Clinical Sciences of Companion, Animals Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584 CM Utrecht, The Netherlands
| | | | - Monique van Wolferen
- Department of Clinical Sciences of Companion, Animals Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584 CM Utrecht, The Netherlands
| | - Elpetra Timmermans-Sprang
- Department of Clinical Sciences of Companion, Animals Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584 CM Utrecht, The Netherlands
| | - Jan A Mol
- Department of Clinical Sciences of Companion, Animals Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584 CM Utrecht, The Netherlands.
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Yu Y, Lee JS, Xie N, Li E, Hurtado-Coll A, Fazli L, Cox M, Plymate S, Gleave M, Dong X. Prostate stromal cells express the progesterone receptor to control cancer cell mobility. PLoS One 2014; 9:e92714. [PMID: 24664419 PMCID: PMC3963951 DOI: 10.1371/journal.pone.0092714] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 02/24/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Reciprocal interactions between epithelium and stroma play vital roles for prostate cancer development and progression. Enhanced secretions of cytokines and growth factors by cancer associated fibroblasts in prostate tumors create a favorable microenvironment for cancer cells to grow and metastasize. Our previous work showed that the progesterone receptor (PR) was expressed specifically in prostate stromal fibroblasts and smooth muscle cells. However, the expression levels of PR and its impact to tumor microenvironment in prostate tumors are poorly understood. METHODS Immunohistochemistry assays are applied to human prostate tissue biopsies. Cell migration, invasion and proliferation assays are performed using human prostate cells. Real-time PCR and ELISA are applied to measure gene expression at molecular levels. RESULTS Immunohistochemistry assays showed that PR protein levels were decreased in cancer associated stroma when compared with paired normal prostate stroma. Using in vitro prostate stromal cell models, we showed that conditioned media collected from PR positive stromal cells inhibited prostate cancer cell migration and invasion, but had minor suppressive impacts on cancer cell proliferation. PR suppressed the secretion of stromal derived factor-1 (SDF-1) and interlukin-6 (IL-6) by stromal cells independent to PR ligands. Blocking PR expression by siRNA or supplementation of exogenous SDF-1 or IL-6 to conditioned media from PR positive stromal cells counteracted the inhibitory effects of PR to cancer cell migration and invasion. CONCLUSIONS Decreased expression of the PR in cancer associated stroma may contribute to the elevated SDF-1 and IL-6 levels in prostate tumors and enhance prostate tumor progression.
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Affiliation(s)
- Yue Yu
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jennifer Suehyun Lee
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ning Xie
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Estelle Li
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Antonio Hurtado-Coll
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ladan Fazli
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Michael Cox
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephen Plymate
- Department of Medicine, University of Washington School of Medicine and VAPSHCS-GRECC, Seattle, Washington, United States of America
| | - Martin Gleave
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Xuesen Dong
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Obstetrics and Gynaecology, University of Toronto, Toronto, Ontario, Canada
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Abdel-Hafiz HA, Horwitz KB. Post-translational modifications of the progesterone receptors. J Steroid Biochem Mol Biol 2014; 140:80-9. [PMID: 24333793 PMCID: PMC3923415 DOI: 10.1016/j.jsbmb.2013.12.008] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 11/30/2013] [Accepted: 12/02/2013] [Indexed: 01/21/2023]
Abstract
Progesterone plays a key role in the development, differentiation and maintenance of female reproductive tissues and has multiple non-reproductive neural functions. Depending on the cell and tissue, the hormonal environment, growth conditions and the developmental stage, progesterone can either stimulate cell growth or inhibit it while promoting differentiation. Progesterone receptors (PRs) belong to the steroid hormone receptor superfamily of ligand-dependent transcription factors. PR proteins are subject to extensive post-translational modifications that include phosphorylation, acetylation, ubiquitination and SUMOylation. The interplay among these modifications is complex with alteration of the receptors by one factor influencing the impact of another. Control over these modifications is species-, tissue- and cell-specific. They in turn regulate multiple functions including PR stability, their subcellular localization, protein-protein interactions and transcriptional activity. These complexities may explain how tissue- and gene-specific differences in regulation are achieved in the same organism, by the same receptor protein and hormone. Here we review current knowledge of PR post-translational modifications and discuss how these may influence receptor function focusing on human breast cancer cells. There is much left to be learned. However, our understanding of this may help to identify therapeutic agents that target PR activity in tissue-specific, even gene-specific ways.
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Affiliation(s)
- Hany A Abdel-Hafiz
- Division of Endocrinology, Department of Medicine, Anschutz Medical Campus, University of Colorado Denver, Aurora, CO 80045, USA.
| | - Kathryn B Horwitz
- Division of Endocrinology, Department of Medicine, Anschutz Medical Campus, University of Colorado Denver, Aurora, CO 80045, USA; Department of Pathology, Anschutz Medical Campus, University of Colorado Denver, Aurora, CO 80045, USA
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Dressing GE, Knutson TP, Schiewer MJ, Daniel AR, Hagan CR, Diep CH, Knudsen KE, Lange CA. Progesterone receptor-cyclin D1 complexes induce cell cycle-dependent transcriptional programs in breast cancer cells. Mol Endocrinol 2014; 28:442-57. [PMID: 24606123 DOI: 10.1210/me.2013-1196] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The progesterone receptor (PR) and its coactivators are direct targets of activated cyclin-dependent kinases (CDKs) in response to peptide growth factors, progesterone, and deregulation of cell cycle inhibitors. Herein, using the T47D breast cancer model, we probed mechanisms of cell cycle-dependent PR action. In the absence of exogenous progestin, the PR is specifically phosphorylated during the G2/M phase. Accordingly, numerous PR target genes are cell cycle regulated, including HSPB8, a heat-shock protein whose high expression is associated with tamoxifen resistance. Progestin-induced HSPB8 expression required cyclin D1 and was insensitive to antiestrogens but blocked by antiprogestins or inhibition of specificity factor 1 (SP1). HSPB8 expression increased with or without ligand when cells were G2/M synchronized or contained high levels of cyclin D1. Knockdown of PRs abrogated ligand-independent HSPB8 expression in synchronized cells. Notably, PRs and cyclin D1 copurified in whole-cell lysates of transiently transfected COS-1 cells and in PR-positive T47D breast cancer cells expressing endogenous cyclin D1. PRs, cyclin D1, and SP1 were recruited to the HSPB8 promoter in progestin-treated T47D breast cancer cells. Mutation of PR Ser345 to Ala (S345A) or inhibition of CDK2 activity using roscovitine disrupted PR/cyclin D1 interactions with DNA and blocked HSPB8 mRNA expression. Interaction of phosphorylated PRs with SP1 and cyclin D1 provides a mechanism for targeting transcriptionally active PRs to selected gene promoters relevant to breast cancer progression. Understanding the functional linkage between PRs and cell cycle regulatory proteins will provide keys to targeting novel PR/cyclin D1 cross talk in both hormone-responsive disease and HSPB8-high refractory disease with high HSPB8 expression.
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Affiliation(s)
- Gwen E Dressing
- Departments of Medicine and Pharmacology (G.E.D., T.P.K., A.R.D., C.R.H., C.H.D., C.A.L.), Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455; and Departments of Cancer Biology, Urology, and Radiation Oncology (M.J.S., K.E.K.), Kimmel Cancer Center Thomas Jefferson University, Philadelphia, Pennsylvania 19107
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Hagan CR, Lange CA. Molecular determinants of context-dependent progesterone receptor action in breast cancer. BMC Med 2014; 12:32. [PMID: 24552158 PMCID: PMC3929904 DOI: 10.1186/1741-7015-12-32] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 01/21/2014] [Indexed: 12/22/2022] Open
Abstract
The ovarian steroid hormone, progesterone, and its nuclear receptor, the progesterone receptor, are implicated in the progression of breast cancer. Clinical trial data on the effects of hormone replacement therapy underscore the importance of understanding how progestins influence breast cancer growth. The progesterone receptor regulation of distinct target genes is mediated by complex interactions between the progesterone receptor and other regulatory factors that determine the context-dependent transcriptional action of the progesterone receptor. These interactions often lead to post-translational modifications to the progesterone receptor that can dramatically alter receptor function, both in the normal mammary gland and in breast cancer. This review highlights the molecular components that regulate progesterone receptor transcriptional action and describes how a better understanding of the complex interactions between the progesterone receptor and other regulatory factors may be critical to enhancing the clinical efficacy of anti-progestins for use in the treatment of breast cancer.
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Affiliation(s)
| | - Carol A Lange
- Department of Medicine (Hematology, Oncology, and Transplantation) and the Department of Pharmacology, University of Minnesota, Masonic Cancer Center, 420 Delaware St SE, MMC 806, Minneapolis, MN 55455, USA.
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35
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Daniel AR, Gaviglio AL, Knutson TP, Ostrander JH, D'Assoro AB, Ravindranathan P, Peng Y, Raj GV, Yee D, Lange CA. Progesterone receptor-B enhances estrogen responsiveness of breast cancer cells via scaffolding PELP1- and estrogen receptor-containing transcription complexes. Oncogene 2014; 34:506-15. [PMID: 24469035 PMCID: PMC4112172 DOI: 10.1038/onc.2013.579] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 11/26/2013] [Accepted: 12/10/2013] [Indexed: 12/16/2022]
Abstract
Progesterone and estrogen are important drivers of breast cancer proliferation. Herein, we probed ER-alpha and PR cross-talk in breast cancer models. Stable expression of PR-B in PR-low/ER+ MCF7 cells increased cellular sensitivity to estradiol and IGF1, as measured in growth assays performed in the absence of exogenous progestin; similar results were obtained in PR-null/ER+ T47D cells stably expressing PR-B. Genome-wide microarray analyses revealed that unliganded PR-B induced robust expression of a subset of estradiol-responsive ER-target genes, including CathepsinD (CTSD). Estradiol-treated MCF7 cells stably expressing PR-B exhibited enhanced ER Ser167 phosphorylation and recruitment of ER, PR, and the proline, glutamate and leucine rich protein 1 (PELP1) to an estrogen response element (ERE) in the CTSD distal promoter; this complex co-immunoprecipitated with IGF1R in whole cell lysates. Importantly, ER/PR/PELP1 complexes were also detected in human breast cancer samples. Inhibition of IGF1R or PI3K blocked PR-B-dependent CTSD mRNA upregulation in response to estradiol. Similarly, inhibition of IGF1R or PR significantly reduced ER recruitment to the CTSD promoter. Stable knockdown of endogenous PR or onapristone treatment of multiple unmodified breast cancer cell lines blocked estradiol-mediated CTSD induction, inhibited growth in soft agar, and partially restored tamoxifen-sensitivity of resistant cells. Further, combination treatment of breast cancer cells with both onapristone and IGF1R tyrosine kinase inhibitor AEW541 was more effective than either agent alone. In summary, unliganded PR-B enhanced proliferative responses to estradiol and IGF1 via scaffolding of ERalpha/PELP1/IGF1R-containing complexes. Our data provide a strong rationale for targeting PR in combination with ER and IGF1R in patients with luminal breast cancer.
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Affiliation(s)
- A R Daniel
- Departments of Medicine and Pharmacology, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - A L Gaviglio
- Departments of Medicine and Pharmacology, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - T P Knutson
- Departments of Medicine and Pharmacology, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - J H Ostrander
- Department of Medicine, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - A B D'Assoro
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - P Ravindranathan
- Department of Urology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
| | - Y Peng
- Department of Pathology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
| | - G V Raj
- Department of Urology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
| | - D Yee
- Departments of Medicine and Pharmacology, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - C A Lange
- Departments of Medicine and Pharmacology, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
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Zhou W, Slingerland JM. Links between oestrogen receptor activation and proteolysis: relevance to hormone-regulated cancer therapy. Nat Rev Cancer 2014; 14:26-38. [PMID: 24505618 DOI: 10.1038/nrc3622] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Oestrogen receptor-α (ERα) is a master transcription factor that regulates cell proliferation and homeostasis in many tissues. Despite beneficial ERα functions, sustained oestrogenic exposure increases the risk and/or the progression of various cancers, including those of the breast, endometrium and ovary. Oestrogen–ERα interaction can trigger post-translational ERα modifications through crosstalk with signalling pathways to promote transcriptional activation and ubiquitin-mediated ERα proteolysis, with co-activators that have dual roles as ubiquitin ligases. These processes are reviewed herein. The elucidation of mechanisms whereby oestrogen drives both ERα transactivation and receptor proteolysis might have important therapeutic implications not only for breast cancer but also potentially for other hormone-regulated cancers.
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Prolactin suppresses a progestin-induced CK5-positive cell population in luminal breast cancer through inhibition of progestin-driven BCL6 expression. Oncogene 2013; 33:2215-24. [PMID: 23708665 PMCID: PMC3913798 DOI: 10.1038/onc.2013.172] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 02/27/2013] [Accepted: 03/19/2013] [Indexed: 12/20/2022]
Abstract
Prolactin controls the development and function of milk-producing breast epithelia but also supports growth and differentiation of breast cancer, especially luminal subtypes. A principal signaling mediator of prolactin, Stat5, promotes cellular differentiation of breast cancer cells in vitro, and loss of active Stat5 in tumors is associated with antiestrogen therapy failure in patients. In luminal breast cancer, progesterone induces a cytokeratin-5 (CK5)-positive basal cell-like population. This population possesses characteristics of tumor stem cells including quiescence, therapy resistance and tumor-initiating capacity. Here we report that prolactin counteracts induction of the CK5-positive population by the synthetic progestin (Pg) R5020 in luminal breast cancer cells both in vitro and in vivo. CK5-positive cells were chemoresistant as determined by fourfold reduced rate of apoptosis following docetaxel exposure. Pg-induction of CK5 was preceded by marked upregulation of BCL6, an oncogene and transcriptional repressor critical for the maintenance of leukemia-initiating cells. Knockdown of BCL6 prevented induction of CK5-positive cell population by Pg. Prolactin suppressed Pg-induced BCL6 through Jak2-Stat5 but not Erk- or Akt-dependent pathways. In premenopausal but not postmenopausal patients with hormone receptor-positive breast cancer, tumor protein levels of CK5 correlated positively with BCL6, and high BCL6 or CK5 protein levels were associated with unfavorable clinical outcome. Suppression of Pg-induction of CK5-positive cells represents a novel prodifferentiation effect of prolactin in breast cancer. The present progress may have direct implications for breast cancer progression and therapy as loss of prolactin receptor-Stat5 signaling occurs frequently and BCL6 inhibitors currently being evaluated for lymphomas may have value for breast cancer.
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38
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Dynamic regulation of steroid hormone receptor transcriptional activity by reversible SUMOylation. VITAMINS AND HORMONES 2013; 93:227-61. [PMID: 23810010 DOI: 10.1016/b978-0-12-416673-8.00008-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Transcription complexes containing steroid hormone receptors (SRs) have been well characterized at selected canonical target genes. More recently, the advent of whole genome technologies has allowed for complete SR transcriptome analyses in diverse cell types and in response to a variety of cellular stimuli. These types of studies have revealed little overlap between the tissue or cell type-specific transcriptomes of a given SR, suggesting that all SRs are highly context-dependent transcription factors. However, the mechanisms controlling SR promoter selectivity have not been fully elucidated. Many factors may influence SR promoter selectivity, including chromatin structure, cofactor availability, and posttranslational modifications to SRs and/or their numerous coregulators; this review focuses on the impact that covalent attachment of small ubiquitin-like modifier (SUMO) moieties to SRs (i.e., SUMOylation) have on the transcriptional regulation of SR target genes.
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Khan JA, Bellance C, Guiochon-Mantel A, Lombès M, Loosfelt H. Differential regulation of breast cancer-associated genes by progesterone receptor isoforms PRA and PRB in a new bi-inducible breast cancer cell line. PLoS One 2012; 7:e45993. [PMID: 23029355 PMCID: PMC3454371 DOI: 10.1371/journal.pone.0045993] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 08/23/2012] [Indexed: 12/28/2022] Open
Abstract
Progesterone receptor isoforms (PRA and PRB) are expressed at equal levels in normal mammary cells. However, alteration in PRA/PRB expression is often observed in aggressive breast cancer suggesting differential contribution of PR isoforms in carcinogenesis. The mechanisms underlying such processes remain to be established mainly due to paucity of appropriate cellular models. To investigate the role of PR isoforms and the impact of imbalanced PRA/PRB ratio in transcriptional regulation, we have generated an original human breast cancer cell line conditionally expressing PRA and/or PRB in dose-dependence of non-steroid inducers. We first focused on PR-dependent transcriptional regulation of the paracrine growth factor gene amphiregulin (AREG) playing important role in cancer. Interestingly, unliganded PRA increases AREG expression, independently of estrogen receptor, yet inhibitable by antiprogestins. We show that functional outcome of epidermal growth factor (EGF) on such regulation is highly dependent on PRA/PRB ratio. Using this valuable model, genome-wide transcriptomic studies allowed us to determine the differential effects of PRA and PRB as a function of hormonal status. We identified a large number of novel PR-regulated genes notably implicated in breast cancer and metastasis and demonstrated that imbalanced PRA/PRB ratio strongly impact their expression predicting poor outcome in breast cancer. In sum, our unique cell-based system strongly suggests that PRA/PRB ratio is a critical determinant of PR target gene selectivity and responses to hormonal/growth factor stimuli. These findings provide molecular support for the aggressive phenotype of breast cancers with impaired expression of PRA or PRB.
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Affiliation(s)
- Junaid A. Khan
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité 693, Steroid Receptors: Endocrine and Metabolic Pathophysiology, Le Kremlin-Bicêtre, France
- Université Paris-Sud, Faculté de Médecine Paris-Sud, Unité Mixte de Recherche UMR S693, Le Kremlin-Bicêtre, France
- Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Faisalabad, Pakistan
| | - Catherine Bellance
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité 693, Steroid Receptors: Endocrine and Metabolic Pathophysiology, Le Kremlin-Bicêtre, France
- Université Paris-Sud, Faculté de Médecine Paris-Sud, Unité Mixte de Recherche UMR S693, Le Kremlin-Bicêtre, France
| | - Anne Guiochon-Mantel
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité 693, Steroid Receptors: Endocrine and Metabolic Pathophysiology, Le Kremlin-Bicêtre, France
- Université Paris-Sud, Faculté de Médecine Paris-Sud, Unité Mixte de Recherche UMR S693, Le Kremlin-Bicêtre, France
- Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service de Génétique moléculaire, Pharmacogénétique et Hormonologie, Le Kremlin-Bicêtre, France
| | - Marc Lombès
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité 693, Steroid Receptors: Endocrine and Metabolic Pathophysiology, Le Kremlin-Bicêtre, France
- Université Paris-Sud, Faculté de Médecine Paris-Sud, Unité Mixte de Recherche UMR S693, Le Kremlin-Bicêtre, France
- Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service d’Endocrinologie et Maladies de la Reproduction, Le Kremlin-Bicêtre, France
| | - Hugues Loosfelt
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité 693, Steroid Receptors: Endocrine and Metabolic Pathophysiology, Le Kremlin-Bicêtre, France
- Université Paris-Sud, Faculté de Médecine Paris-Sud, Unité Mixte de Recherche UMR S693, Le Kremlin-Bicêtre, France
- * E-mail:
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Zassadowski F, Rochette-Egly C, Chomienne C, Cassinat B. Regulation of the transcriptional activity of nuclear receptors by the MEK/ERK1/2 pathway. Cell Signal 2012; 24:2369-77. [PMID: 22906493 DOI: 10.1016/j.cellsig.2012.08.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 08/09/2012] [Indexed: 01/08/2023]
Abstract
Cells undergo continuous and simultaneous external influences regulating their behavior. As an example, during differentiation, they go through different stages of maturation and gene expression is regulated by several simultaneous signaling pathways. We often tend at separating the nuclear pathways from the signaling ones initiated at membrane receptors. However, it is essential to keep in mind that all these pathways are interconnected to achieve a fine regulation of cell functions. The regulation of transcription by nuclear receptors has been thoroughly studied, but it now appears that a critical level of this regulation involves the action of several kinases that target the nuclear receptors themselves as well as their partners. The purpose of this review is to highlight the importance of one family of the mitogen-activated protein kinase (MAPK) superfamily, the MEK/ERK1/2 pathway, in the transcriptional activity of nuclear receptors.
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Diaz J, Aranda E, Henriquez S, Quezada M, Espinoza E, Bravo ML, Oliva B, Lange S, Villalon M, Jones M, Brosens JJ, Kato S, Cuello MA, Knutson TP, Lange CA, Leyton L, Owen GI. Progesterone promotes focal adhesion formation and migration in breast cancer cells through induction of protease-activated receptor-1. J Endocrinol 2012; 214:165-75. [PMID: 22593082 DOI: 10.1530/joe-11-0310] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Progesterone and progestins have been demonstrated to enhance breast cancer cell migration, although the mechanisms are still not fully understood. The protease-activated receptors (PARs) are a family of membrane receptors that are activated by serine proteases in the blood coagulation cascade. PAR1 (F2R) has been reported to be involved in cancer cell migration and overexpressed in breast cancer. We herein demonstrate that PAR1 mRNA and protein are upregulated by progesterone treatment of the breast cancer cell lines ZR-75 and T47D. This regulation is dependent on the progesterone receptor (PR) but does not require PR phosphorylation at serine 294 or the PR proline-rich region mPRO. The increase in PAR1 mRNA was transient, being present at 3 h and returning to basal levels at 18 h. The addition of a PAR1-activating peptide (aPAR1) to cells treated with progesterone resulted in an increase in focal adhesion (FA) formation as measured by the cellular levels of phosphorylated FA kinase. The combined but not individual treatment of progesterone and aPAR1 also markedly increased stress fiber formation and the migratory capacity of breast cancer cells. In agreement with in vitro findings, data mining from the Oncomine platform revealed that PAR1 expression was significantly upregulated in PR-positive breast tumors. Our observation that PAR1 expression and signal transduction are modulated by progesterone provides new insight into how the progestin component in hormone therapies increases the risk of breast cancer in postmenopausal women.
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Affiliation(s)
- Jorge Diaz
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile
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Hagan CR, Daniel AR, Dressing GE, Lange CA. Role of phosphorylation in progesterone receptor signaling and specificity. Mol Cell Endocrinol 2012; 357:43-9. [PMID: 21945472 PMCID: PMC3265648 DOI: 10.1016/j.mce.2011.09.017] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 08/08/2011] [Accepted: 09/11/2011] [Indexed: 10/17/2022]
Abstract
Progesterone receptors (PR), in concert with peptide growth factor-initiated signaling pathways, initiate massive expansion of the epithelial cell compartment associated with the process of alveologenesis in the developing mammary gland. PR-dependent signaling events also contribute to inappropriate proliferation observed in breast cancer. Notably, PR-B isoform-specific cross talk with growth factor-driven pathways is required for the proliferative actions of progesterone. Indeed, PRs act as heavily phosphorylated transcription factor "sensors" for mitogenic protein kinases that are often elevated and/or constitutively activated in invasive breast cancers. In addition, phospho-PR-target genes frequently include the components of mitogenic signaling pathways, revealing a mechanism for feed-forward signaling that confers increased responsiveness of, PR +mammary epithelial cells to these same mitogenic stimuli. Understanding the mechanisms and isoform selectivity of PR/kinase interactions may yield further insight into targeting altered signaling networks in breast and other hormonally responsive cancers (i.e. lung, uterine and ovarian) in the clinic. This review focuses on PR phosphorylation by mitogenic protein kinases and mechanisms of PR-target gene selection that lead to increased cell proliferation.
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Affiliation(s)
- Christy R Hagan
- University of Minnesota, Departments of Medicine and Pharmacology, Division of Hematology, Oncology, and Transplantation, Women's Cancer Program, Masonic Cancer Center, Minneapolis, MN 55455, United States
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Knutson TP, Daniel AR, Fan D, Silverstein KAT, Covington KR, Fuqua SAW, Lange CA. Phosphorylated and sumoylation-deficient progesterone receptors drive proliferative gene signatures during breast cancer progression. Breast Cancer Res 2012; 14:R95. [PMID: 22697792 PMCID: PMC3446358 DOI: 10.1186/bcr3211] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 05/21/2012] [Accepted: 06/14/2012] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Progesterone receptors (PR) are emerging as important breast cancer drivers. Phosphorylation events common to breast cancer cells impact PR transcriptional activity, in part by direct phosphorylation. PR-B but not PR-A isoforms are phosphorylated on Ser294 by mitogen activated protein kinase (MAPK) and cyclin dependent kinase 2 (CDK2). Phospho-Ser294 PRs are resistant to ligand-dependent Lys388 SUMOylation (that is, a repressive modification). Antagonism of PR small ubiquitin-like modifier (SUMO)ylation by mitogenic protein kinases suggests a mechanism for derepression (that is, transcriptional activation) of target genes. As a broad range of PR protein expression is observed clinically, a PR gene signature would provide a valuable marker of PR contribution to early breast cancer progression. METHODS Global gene expression patterns were measured in T47D and MCF-7 breast cancer cells expressing either wild-type (SUMOylation-capable) or K388R (SUMOylation-deficient) PRs and subjected to pathway analysis. Gene sets were validated by RT-qPCR. Recruitment of coregulators and histone methylation levels were determined by chromatin immunoprecipitation. Changes in cell proliferation and survival were determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays and western blotting. Finally, human breast tumor cohort datasets were probed to identify PR-associated gene signatures; metagene analysis was employed to define survival rates in patients whose tumors express a PR gene signature. RESULTS 'SUMO-sensitive' PR target genes primarily include genes required for proliferative and pro-survival signaling. DeSUMOylated K388R receptors are preferentially recruited to enhancer regions of derepressed genes (that is, MSX2, RGS2, MAP1A, and PDK4) with the steroid receptor coactivator, CREB-(cAMP-response element-binding protein)-binding protein (CBP), and mixed lineage leukemia 2 (MLL2), a histone methyltransferase mediator of nucleosome remodeling. PR SUMOylation blocks these events, suggesting that SUMO modification of PR prevents interactions with mediators of early chromatin remodeling at 'closed' enhancer regions. SUMO-deficient (phospho-Ser294) PR gene signatures are significantly associated with human epidermal growth factor 2 (ERBB2)-positive luminal breast tumors and predictive of early metastasis and shortened survival. Treatment with antiprogestin or MEK inhibitor abrogated expression of SUMO-sensitive PR target-genes and inhibited proliferation in BT-474 (estrogen receptor (ER)+/PR+/ERBB2+) breast cancer cells. CONCLUSIONS We conclude that reversible PR SUMOylation/deSUMOylation profoundly alters target gene selection in breast cancer cells. Phosphorylation-induced PR deSUMOylation favors a permissive chromatin environment via recruitment of CBP and MLL2. Patients whose ER+/PR+ tumors are driven by hyperactive (that is, derepressed) phospho-PRs may benefit from endocrine (antiestrogen) therapies that contain an antiprogestin.
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Affiliation(s)
- Todd P Knutson
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, Masonic Cancer Center, University of Minnesota, 420 Delaware Street SE, Minneapolis, MN 55455 USA
| | - Andrea R Daniel
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, Masonic Cancer Center, University of Minnesota, 420 Delaware Street SE, Minneapolis, MN 55455 USA
| | - Danhua Fan
- Biostatistics and Bioinformatics Core, Masonic Cancer Center, 425 Delaware St SE, University of Minnesota, Minneapolis, MN 55455 USA
| | - Kevin AT Silverstein
- Biostatistics and Bioinformatics Core, Masonic Cancer Center, 425 Delaware St SE, University of Minnesota, Minneapolis, MN 55455 USA
| | - Kyle R Covington
- Department of Medicine, Lester and Sue Smith Breast Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030 USA
| | - Suzanne AW Fuqua
- Department of Medicine, Lester and Sue Smith Breast Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030 USA
| | - Carol A Lange
- Departments of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, Masonic Cancer Center, University of Minnesota, 420 Delaware Street SE, Minneapolis, MN 55455 USA
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Gioeli D, Paschal BM. Post-translational modification of the androgen receptor. Mol Cell Endocrinol 2012; 352:70-8. [PMID: 21820033 DOI: 10.1016/j.mce.2011.07.004] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 06/30/2011] [Accepted: 07/01/2011] [Indexed: 01/01/2023]
Abstract
Regulation of the androgen receptor (AR) by its cognate ligand is well established, but how post-translational modification modulates AR activity is only emerging. The AR is subject to modification by phosphorylation, acetylation, methylation, SUMOylation, and ubiquitination. As several of the enzymes that modify the AR are altered in prostate cancer, defining the context and physiological effects of these modifications could provide insight into mechanisms that underpin human disease. Here, we review how post-translational modification contributes to AR function as a transcription factor with particular emphasis on phosphorylation and dephosphorylation mechanisms.
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Affiliation(s)
- Daniel Gioeli
- Department of Microbiology, University of Virginia, Charlottesville, Virginia, USA
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Yeung BHY, Law AYS, Wong CKC. Evolution and roles of stanniocalcin. Mol Cell Endocrinol 2012; 349:272-80. [PMID: 22115958 DOI: 10.1016/j.mce.2011.11.007] [Citation(s) in RCA: 157] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Accepted: 11/07/2011] [Indexed: 12/11/2022]
Abstract
In fish, stanniocalcin-1 (STC1) is a key endocrine factor that acts on gill, intestine and kidney to regulate serum calcium and phosphate homeostasis. The recent identification and study of mammalian STCs (STC1 and STC2) revealed that the hormones are made in virtually all tissues and they act primarily as paracrine/autocrine factors to regulate various biological functions. Based on their ubiquitous expression patterns and generally undetectable levels in blood serum, it is unlikely that the mammalian STCs play important roles in serum Ca(2+)/P(i) homeostasis. However current evidences still support the local action of STCs in Ca(2+) and P(i) transport, probably via their action on Ca(2+)-channels and Na(+)/P(i) co-transporter. At present, information about the sequence, expression and distribution of the STC receptor(s) is lacking. However, recent emerging evidence hints the involvement of STC1 and STC2 in the sub-cellular functions of mitochondria and endoplasmic reticulum respectively, particularly responding to oxidative stress and unfolded protein response. With increasing evidence that demonstrates the local actions of STCs, the focus of the research has been moved to cellular inflammation and carcinogenesis. This review integrates the information available on STCs in fish and mammals, focusing mainly on their embryonic origin, tissue distribution, their potential regulatory mechanisms and the modes of action, and their physiological and pathophysiological functions, particularly in cancer biology.
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Affiliation(s)
- B H Y Yeung
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
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Campbell M, Izumiya Y. Post-Translational Modifications of Kaposi's Sarcoma-Associated Herpesvirus Regulatory Proteins - SUMO and KSHV. Front Microbiol 2012; 3:31. [PMID: 22347876 PMCID: PMC3278983 DOI: 10.3389/fmicb.2012.00031] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 01/18/2012] [Indexed: 01/20/2023] Open
Abstract
KSHV latency can be envisioned as an outcome that is balanced between factors that promote viral gene expression and lytic replication against those that facilitate gene silencing and establish or maintain latency. A large body of work has focused on the activities of the key viral regulatory proteins involved in KSHV latent or lytic states. Moreover, recent studies have also begun to document the importance of epigenetic landscape evolution of the KSHV viral genome during latency and reactivation. However, one area of KSHV molecular virology that remains largely unanswered is the precise role of post-translational modifications on the activities of viral factors that function during latency and reactivation. In this review, we will summarize the post-translational modifications associated with three viral factors whose activities contribute to the viral state. The viral proteins discussed are the two major KSHV encoded transcription factors, K-Rta (KSHV replication and transcriptional activator) and K-bZIP (KSHV basic leucine zipper) and the viral latency-associated nuclear antigen (LANA). A special emphasis will be placed on the role of the sumoylation pathway in the modulation of the KSHV lifecycle. Newly uncovered small ubiquitin-like modifier (SUMO)-associated properties of LANA and K-Rta will also be presented, namely LANA histone targeting SUMO E3 ligase activity and K-Rta SUMO-targeted ubiquitin ligase function.
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Affiliation(s)
- Mel Campbell
- Department of Dermatology, University of California Davis Sacramento, CA, USA
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Hill KK, Roemer SC, Churchill ME, Edwards DP. Structural and functional analysis of domains of the progesterone receptor. Mol Cell Endocrinol 2012; 348:418-29. [PMID: 21803119 PMCID: PMC4437577 DOI: 10.1016/j.mce.2011.07.017] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 06/29/2011] [Accepted: 07/07/2011] [Indexed: 11/18/2022]
Abstract
Steroid hormone receptors are multi-domain proteins composed of conserved well-structured regions, such as ligand (LBD) and DNA binding domains (DBD), plus other naturally unstructured regions including the amino-terminal domain (NTD) and the hinge region between the LBD and DBD. The hinge is more than just a flexible region between the DBD and LBD and is capable of binding co-regulatory proteins and the minor groove of DNA flanking hormone response elements. Because the hinge can directly participate in DNA binding it has also been termed the carboxyl terminal extension (CTE) of the DNA binding domain. The CTE and NTD are dynamic regions of the receptor that can adopt multiple conformations depending on the environment of interacting proteins and DNA. Both regions have important regulatory roles for multiple receptor functions that are related to the ability of the CTE and NTD to form multiple active conformations. This review focuses on studies of the CTE and NTD of progesterone receptor (PR), as well as related work with other steroid/nuclear receptors.
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Affiliation(s)
- Krista K. Hill
- Department of Immunology, National Jewish Medical and Research Center, Denver, CO 80206, USA
| | - Sarah C. Roemer
- Department of Pharmacology, School of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - Mair E.A. Churchill
- Department of Pharmacology, School of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - Dean P. Edwards
- Departments of Molecular & Cellular Biology and Pathology & Immunology, Baylor College of Medicine, Houston, Texas 77030, USA
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Abstract
The participation of extranuclear steroid receptor signaling in organ physiology and the impact for pathobiology has increasingly been demonstrated. Important functions of membrane estrogen receptors in the cardiovascular system demonstrate new mechanisms of rapid steroid signaling to gene regulation, preventing cardiovascular disease and maintaining healthy arterial function. In cancer cells, kinase signaling initiated by extranuclear estrogen, progesterone, and androgen receptors modulates transcriptional events in the nucleus, which in turn regulate proliferation, migration, and invasion. Important mediators of cross talk between cytoplasmic and nuclear steroid receptor signaling are the proline-, glutamic acid-, and leucine-rich protein-1 and paxillin proteins, both of which modulate membrane and nuclear receptor pool signaling to promote a variety of cell biological functions.
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Affiliation(s)
- Stephen R Hammes
- Department of Medicine, University of Rochester, Rochester, New York 14642, USA.
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Law AYS, Yeung BHY, Ching LY, Wong CKC. Sp1 is a transcription repressor to stanniocalcin-1 expression in TSA-treated human colon cancer cells, HT29. J Cell Biochem 2011; 112:2089-96. [PMID: 21465530 DOI: 10.1002/jcb.23127] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Our previous study demonstrated that, stanniocalcin-1 (STC1) was a target of histone deacetylase (HDAC) inhibitors and was involved in trichostatin A (TSA) induced apoptosis in the human colon cancer cells, HT29. In this study, we reported that the transcriptional factor, specificity protein 1 (Sp1) in association with retinoblastoma (Rb) repressed STC1 gene transcription in TSA-treated HT29 cells. Our data demonstrated that, a co-treatment of the cells with TSA and Sp1 inhibitor, mithramycin A (MTM) led to a marked synergistic induction of STC1 transcript levels, STC1 promoter (1 kb)-driven luciferase activity and an increase of apoptotic cell population. The knockdown of Sp1 gene expression in TSA treated cells, revealed the repressor role of Sp1 in STC1 transcription. Using a protein phosphatase inhibitor okadaic acid (OKA), an increase of Sp1 hyperphosphorylation and so a reduction of its transcriptional activity, led to a significant induction of STC1 gene expression. Chromatin immunoprecipitation (ChIP) assay revealed that Sp1 binding on STC1 proximal promoter in TSA treated cells. The binding of Sp1 to STC1 promoter was abolished by the co-treatment of MTM or OKA in TSA-treated cells. Re-ChIP assay illustrated that Sp1-mediated inhibition of STC1 transcription was associated with the recruitment of another repressor molecule, Rb. Collectively our findings identify STC1 is a downstream target of Sp1.
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Affiliation(s)
- Alice Y S Law
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
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Daniel AR, Hagan CR, Lange CA. Progesterone receptor action: defining a role in breast cancer. Expert Rev Endocrinol Metab 2011; 6:359-369. [PMID: 21857868 PMCID: PMC3156468 DOI: 10.1586/eem.11.25] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The ovarian steroid hormones, estradiol and progesterone, and their nuclear receptors (estrogen receptor [ER] and progesterone receptor [PR]), are involved in breast cancer development. As ER-positive/PR-positive tumors progress, they are likely to become steroid hormone-resistant/independent, yet often retain expression of their steroid receptors. Notably, up to 40% of women with steroid receptor-positive tumors exhibit de novo resistance or eventually fail on estrogen- or ERα-blocking therapies (acquired resistance). Indeed, most of the research on this topic has centered on mechanisms of ER 'escape' from endocrine therapy and the design of better ER-blocking strategies; signaling pathways that mediate endocrine (i.e., anti-estrogen) resistance are also excellent therapeutic targets. However, serious consideration of PR isoforms as important drivers of early breast cancer progression and ER modulators is timely and significant. Indeed, progress has been hindered by ER-centric experimental approaches. This article will focus on defining a role for PR in breast cancer with hopes of providing a refreshing PR-focused perspective.
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Affiliation(s)
- Andrea R Daniel
- Departments of Medicine (Division of Hematology, Oncology and Transplantation) and Pharmacology, and The Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Christy R Hagan
- Departments of Medicine (Division of Hematology, Oncology and Transplantation) and Pharmacology, and The Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Carol A Lange
- Departments of Medicine (Division of Hematology, Oncology and Transplantation) and Pharmacology, and The Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
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