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Liu J, Zhang H. Zinc Finger and BTB Domain-Containing 20: A Newly Emerging Player in Pathogenesis and Development of Human Cancers. Biomolecules 2024; 14:192. [PMID: 38397429 PMCID: PMC10887282 DOI: 10.3390/biom14020192] [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: 01/12/2024] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Zinc finger and BTB domain-containing 20 (ZBTB20), which was initially identified in human dendritic cells, belongs to a family of transcription factors (TFs) with an N-terminal BTB domain and one or more C-terminal DNA-binding zinc finger domains. Under physiological conditions, ZBTB20 acts as a transcriptional repressor in cellular development and differentiation, metabolism, and innate immunity. Interestingly, multiple lines of evidence from mice and human systems have revealed the importance of ZBTB20 in the pathogenesis and development of cancers. ZBTB20 is not only a hotspot of genetic variation or fusion in many types of human cancers, but also a key TF or intermediator involving in the dysregulation of cancer cells. Given the diverse functions of ZBTB20 in both health and disease, we herein summarize the structure and physiological roles of ZBTB20, with an emphasis on the latest findings on tumorigenesis and cancer progression.
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Affiliation(s)
| | - Han Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China;
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2
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Fontana F, Esser AK, Egbulefu C, Karmakar P, Su X, Allen JS, Xu Y, Davis JL, Gabay A, Xiang J, Kwakwa KA, Manion B, Bakewell S, Li S, Park H, Lanza GM, Achilefu S, Weilbaecher KN. Transferrin receptor in primary and metastatic breast cancer: Evaluation of expression and experimental modulation to improve molecular targeting. PLoS One 2023; 18:e0293700. [PMID: 38117806 PMCID: PMC10732420 DOI: 10.1371/journal.pone.0293700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/17/2023] [Indexed: 12/22/2023] Open
Abstract
BACKGROUND Conjugation of transferrin (Tf) to imaging or nanotherapeutic agents is a promising strategy to target breast cancer. Since the efficacy of these biomaterials often depends on the overexpression of the targeted receptor, we set out to survey expression of transferrin receptor (TfR) in primary and metastatic breast cancer samples, including metastases and relapse, and investigate its modulation in experimental models. METHODS Gene expression was investigated by datamining in twelve publicly-available datasets. Dedicated Tissue microarrays (TMAs) were generated to evaluate matched primary and bone metastases as well as and pre and post chemotherapy tumors from the same patient. TMA were stained with the FDA-approved MRQ-48 antibody against TfR and graded by staining intensity (H-score). Patient-derived xenografts (PDX) and isogenic metastatic mouse models were used to study in vivo TfR expression and uptake of transferrin. RESULTS TFRC gene and protein expression were high in breast cancer of all subtypes and stages, and in 60-85% of bone metastases. TfR was detectable after neoadjuvant chemotherapy, albeit with some variability. Fluorophore-conjugated transferrin iron chelator deferoxamine (DFO) enhanced TfR uptake in human breast cancer cells in vitro and proved transferrin localization at metastatic sites and correlation of tumor burden relative to untreated tumor mice. CONCLUSIONS TfR is expressed in breast cancer, primary, metastatic, and after neoadjuvant chemotherapy. Variability in expression of TfR suggests that evaluation of the expression of TfR in individual patients could identify the best candidates for targeting. Further, systemic iron chelation with DFO may upregulate receptor expression and improve uptake of therapeutics or tracers that use transferrin as a homing ligand.
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Affiliation(s)
- Francesca Fontana
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Alison K. Esser
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Christopher Egbulefu
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Partha Karmakar
- Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Xinming Su
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - John S. Allen
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Yalin Xu
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Jennifer L. Davis
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Ariel Gabay
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Jingyu Xiang
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Kristin A. Kwakwa
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Brad Manion
- Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Suzanne Bakewell
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Shunqiang Li
- Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Haeseong Park
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Gregory M. Lanza
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Katherine N. Weilbaecher
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
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3
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Gupta KK, Sharma KK, Chandra H, Panwar H, Bhardwaj N, Altwaijry NA, Alsfouk AA, Dlamini Z, Afzal O, Altamimi ASA, Khan S, Mishra AP. The integrative bioinformatics approaches to predict the xanthohumol as anti-breast cancer molecule: Targeting cancer cells signaling PI3K and AKT kinase pathway. Front Oncol 2022; 12:950835. [PMID: 36591523 PMCID: PMC9798915 DOI: 10.3389/fonc.2022.950835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 11/10/2022] [Indexed: 12/23/2022] Open
Abstract
Background Breast cancer is the most common type of cancer in women, and vast research is being conducted throughout the world for the treatment of this malignancy by natural products using various computational approaches. Xanthohumol, a prenylated flavonoid, is known for its anticancer activity; however, the mechanism behind its action is still in the preliminary stage. Methods The current study aimed to analyze the efficacy of xanthohumol compared to the currently available anticancer drugs targeting phosphoinositide-3-kinase (PI3K), serine/threonine kinase (AKT) receptors, and human epidermal growth factor receptor 2 (HER2) for breast cancer treatment through in silico analysis. Results The result revealed that the target compound showed significant binding affinity to targets within the PI3K, AKT, and HER2 signaling pathways with a binding energy of -7.5, -7.9, and -7.9 kcal/mol, respectively. Further prediction studies were then made concerning this compound's absorption, distribution, metabolism, and excretion (ADME) as well as drug-likeness properties, resulting in its oral bioavailability with only a single violation of Lipinski's rule of five. Conclusions The finding revealed the ability of xanthohumol to bind with multiple cancer cell signaling molecules including PI3K, AKT kinase, and HER2. The current novel study opened the door to advancing research into the management and treatment of breast cancer.
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Affiliation(s)
- Kartikey Kumar Gupta
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Kamal Kant Sharma
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India,*Correspondence: Kamal Kant Sharma, ; Abhay Prakash Mishra, ; Shahanavaj Khan,
| | - Harish Chandra
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Himalaya Panwar
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Nitin Bhardwaj
- Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Najla A. Altwaijry
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Aisha A. Alsfouk
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Zodwa Dlamini
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Hatfield, South Africa
| | - Obaid Afzal
- 4SAMRC Precision Oncology Research Unit (PORU), Pan African Cancer Research Institute (PACRI), University of Pretoria, Hatfield, South Africa
| | - Abdulmalik S. A. Altamimi
- 4SAMRC Precision Oncology Research Unit (PORU), Pan African Cancer Research Institute (PACRI), University of Pretoria, Hatfield, South Africa
| | - Shahanavaj Khan
- Department of Medical Lab Technology, Indian Institute of Health and Technology (IIHT), Saharanpur, Uttar Pradesh, India,Department of Health Sciences, Novel Global Community Educational Foundation, Hebersham, NSW, Australia,Department of Pharmaceutics, College of Pharmacy, King Saud University, King Saud University, Riyadh, Saudi Arabia,*Correspondence: Kamal Kant Sharma, ; Abhay Prakash Mishra, ; Shahanavaj Khan,
| | - Abhay Prakash Mishra
- Department of Pharmacology, University of Free State, Bloemfontein, Free State, South Africa,*Correspondence: Kamal Kant Sharma, ; Abhay Prakash Mishra, ; Shahanavaj Khan,
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Cao L, Sugumar K, Keller E, Li P, Rock L, Simpson A, Freyvogel M, Montero AJ, Shenk R, Miller ME. Neoadjuvant Endocrine Therapy as an Alternative to Neoadjuvant Chemotherapy Among Hormone Receptor-Positive Breast Cancer Patients: Pathologic and Surgical Outcomes. Ann Surg Oncol 2021; 28:5730-5741. [PMID: 34342757 PMCID: PMC8330206 DOI: 10.1245/s10434-021-10459-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/22/2021] [Indexed: 12/22/2022]
Abstract
Background Neoadjuvant chemotherapy (NCT) is considered more effective in downstaging hormone receptor-positive (HR+) breast cancer than neoadjuvant endocrine therapy (NET), particularly in node-positive disease. This study compared breast and axillary response and survival after NCT and NET in HR+ breast cancer. Methods Based on American College of Surgeons Oncology Group (ACOSOG) Z1031 criteria, women age 50 years or older with cT2-4 HR+ breast cancer who underwent NET or NCT and surgery were identified in the National Cancer Database 2010–2016. Chi-square and logistic regression analysis determined differences between the NCT and NET groups and therapy response, including downstaging and pathologic complete response (pCR, ypT0/is and ypN0). Results Of 19,829 patients, 14,025 (70.7%) received NCT and 5804 (29.3%) received NET. The NET patients were older (mean age, 68.9 vs. 60.3; P < 0.001) and had greater comorbidity (1+ Charlson–Deyo score, 21% vs. 16%; P < 0.001). Therapy achieved T downstaging (any) for 58% of the patients with NCT versus 40.5% of the patients with NET, and in-breast pCR was achieved for 9.3% of the NCT versus 1.3% of the NET patients (P < 0.001). Approximately half of the mastectomy procedures could have been potentially avoided for the patients with in-breast pCR (53.6% of the NCT and 43.8% of the NET patients). For the cN+ patients, N downstaging (any) was 29% for the NCT patients versus 18.3% for the NET patients (P < 0.001), and nodal pCR was achieved for 20.3% of the NCT versus 13.5% of the NET patients (P < 0.001). Among those with nodal pCR, axillary lymph node dissection (ALND) still was performed for 56% of the patients after NCT and 45% of the patients after NET. Conclusions Although the response rates after NCT were higher, NET achieved both T and N downstaging and pCR. Neoadjuvant endocrine therapy can be used to de-escalate surgery for patients who cannot tolerate NCT or when chemotherapy may not be effective based on genomic testing. Supplementary Information The online version contains supplementary material available at 10.1245/s10434-021-10459-3.
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Affiliation(s)
- Lifen Cao
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA
| | - Kavin Sugumar
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA
| | - Eleanor Keller
- University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA.,Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Pamela Li
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA
| | - Lisa Rock
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA
| | - Ashley Simpson
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA
| | - Mary Freyvogel
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA
| | - Alberto J Montero
- Division of Hematology and Oncology, Department of Medicine, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Robert Shenk
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA
| | - Megan E Miller
- Division of Surgical Oncology, Department of Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA. .,University Hospitals Research in Surgical Outcomes and Effectiveness (UH-RISES), Cleveland, OH, USA.
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5
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Priedigkeit N, Ding K, Horne W, Kolls JK, Du T, Lucas PC, Blohmer JU, Denkert C, Machleidt A, Ingold-Heppner B, Oesterreich S, Lee AV. Acquired mutations and transcriptional remodeling in long-term estrogen-deprived locoregional breast cancer recurrences. Breast Cancer Res 2021; 23:1. [PMID: 33407744 PMCID: PMC7788918 DOI: 10.1186/s13058-020-01379-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/04/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Endocrine therapy resistance is a hallmark of advanced estrogen receptor (ER)-positive breast cancer. In this study, we aimed to determine acquired genomic changes in endocrine-resistant disease. METHODS We performed DNA/RNA hybrid-capture sequencing on 12 locoregional recurrences after long-term estrogen deprivation and identified acquired genomic changes versus each tumor's matched primary. RESULTS Despite being up to 7 years removed from the primary lesion, most recurrences harbored similar intrinsic transcriptional and copy number profiles. Only two genes, AKAP9 and KMT2C, were found to have single nucleotide variant (SNV) enrichments in more than one recurrence. Enriched mutations in single cases included SNVs within transcriptional regulators such as ARID1A, TP53, FOXO1, BRD1, NCOA1, and NCOR2 with one local recurrence gaining three PIK3CA mutations. In contrast to DNA-level changes, we discovered recurrent outlier mRNA expression alterations were common-including outlier gains in TP63 (n = 5 cases [42%]), NTRK3 (n = 5 [42%]), NTRK2 (n = 4 [33%]), PAX3 (n = 4 [33%]), FGFR4 (n = 3 [25%]), and TERT (n = 3 [25%]). Recurrent losses involved ESR1 (n = 5 [42%]), RELN (n = 5 [42%]), SFRP4 (n = 4 [33%]), and FOSB (n = 4 [33%]). ESR1-depleted recurrences harbored shared transcriptional remodeling events including upregulation of PROM1 and other basal cancer markers. CONCLUSIONS Taken together, this study defines acquired genomic changes in long-term, estrogen-deprived disease; highlights the importance of longitudinal RNA profiling; and identifies a common ESR1-depleted endocrine-resistant breast cancer subtype with basal-like transcriptional reprogramming.
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Affiliation(s)
- Nolan Priedigkeit
- Department of Medicine, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA.,Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Kai Ding
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA.,Magee-Women's Research Institute, Magee-Women's Research Hospital of University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - William Horne
- Richard King Mellon Foundation Institute for Pediatric Research, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Jay K Kolls
- Richard King Mellon Foundation Institute for Pediatric Research, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Tian Du
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Peter C Lucas
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jens-Uwe Blohmer
- Institute of Pathology and Department of Gynecology, Charité University Hospital, Berlin, Germany
| | - Carsten Denkert
- Institute of Pathology, Philipps-University Marburg and University Hospital Marburg (UKGM), Marburg, Germany
| | - Anna Machleidt
- Institute of Pathology and Department of Gynecology, Charité University Hospital, Berlin, Germany
| | | | - Steffi Oesterreich
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA.,Magee-Women's Research Institute, Magee-Women's Research Hospital of University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Adrian V Lee
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA. .,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA. .,Magee-Women's Research Institute, Magee-Women's Research Hospital of University of Pittsburgh Medical Center, Pittsburgh, PA, USA. .,Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA. .,Magee-Women's Research Institute, 204 Craft Avenue (Room A412), Pittsburgh, PA, 15213, USA.
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Xu B, Amallraja A, Swaminathan P, Elsey R, Davis C, Theel S, Viet S, Petersen J, Krie A, Davies G, Williams CB, Ehli E, Meißner T. Case report: 16-yr life history and genomic evolution of an ER + HER2 - breast cancer. Cold Spring Harb Mol Case Stud 2020; 6:a005629. [PMID: 33008833 PMCID: PMC7784492 DOI: 10.1101/mcs.a005629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/28/2020] [Indexed: 11/25/2022] Open
Abstract
Metastatic breast cancer is one of the leading causes of cancer-related death in women. Limited studies have been done on the genomic evolution between primary and metastatic breast cancer. We reconstructed the genomic evolution through the 16-yr history of an ER+ HER2- breast cancer patient to investigate molecular mechanisms of disease relapse and treatment resistance after long-term exposure to hormonal therapy. Genomic and transcriptome profiling was performed on primary breast tumor (2002), initial recurrence (2012), and liver metastasis (2015) samples. Cell-free DNA analysis was performed at 11 time points (2015-2017). Mutational analysis revealed a low mutational burden in the primary tumor that doubled at the time of progression, with driver mutations in PI3K-Akt and RAS-RAF signaling pathways. Phylogenetic analysis showed an early branching off between primary tumor and metastasis. Liquid biopsies, although initially negative, started to detect an ESR1 E380Q mutation in 2016 with increasing allele frequency until the end of 2017. Transcriptome analysis revealed 721 (193 up, 528 down) genes to be differentially expressed between primary tumor and first relapse. The most significantly down-regulated genes were TFF1 and PGR, indicating resistance to aromatase inhibitor (AI) therapy. The most up-regulated genes included PTHLH, S100P, and SOX2, promoting tumor growth and metastasis. This phylogenetic reconstruction of the life history of a single patient's cancer as well as monitoring tumor progression through liquid biopsies allowed for uncovering the molecular mechanisms leading to initial relapse, metastatic spread, and treatment resistance.
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Affiliation(s)
- Bing Xu
- Center for Precision Oncology, Avera Cancer Institute, Sioux Falls, South Dakota 57105, USA
| | - Anu Amallraja
- Center for Precision Oncology, Avera Cancer Institute, Sioux Falls, South Dakota 57105, USA
| | - Padmapriya Swaminathan
- Center for Precision Oncology, Avera Cancer Institute, Sioux Falls, South Dakota 57105, USA
| | - Rachel Elsey
- Center for Precision Oncology, Avera Cancer Institute, Sioux Falls, South Dakota 57105, USA
| | - Christel Davis
- Avera Institute for Human Genetics, Sioux Falls, South Dakota 57108, USA
| | - Stephanie Theel
- Avera Institute for Human Genetics, Sioux Falls, South Dakota 57108, USA
| | - Sarah Viet
- Avera Institute for Human Genetics, Sioux Falls, South Dakota 57108, USA
| | - Jason Petersen
- Avera Institute for Human Genetics, Sioux Falls, South Dakota 57108, USA
| | - Amy Krie
- Center for Precision Oncology, Avera Cancer Institute, Sioux Falls, South Dakota 57105, USA
| | - Gareth Davies
- Avera Institute for Human Genetics, Sioux Falls, South Dakota 57108, USA
| | - Casey B Williams
- Center for Precision Oncology, Avera Cancer Institute, Sioux Falls, South Dakota 57105, USA
| | - Erik Ehli
- Avera Institute for Human Genetics, Sioux Falls, South Dakota 57108, USA
| | - Tobias Meißner
- Center for Precision Oncology, Avera Cancer Institute, Sioux Falls, South Dakota 57105, USA
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Marbouti L, Zahmatkesh M, Riahi E, Sadr SS. Inhibition of brain 17β-estradiol synthesis by letrozole induces cognitive decline in male and female rats. Neurobiol Learn Mem 2020; 175:107300. [PMID: 32882397 DOI: 10.1016/j.nlm.2020.107300] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 08/17/2020] [Accepted: 08/24/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Hippocampal aromatase is responsible for local synthesis of 17β-estradiol (E2) that has much higher concentrations than serum levels in males and females. Letrozole, an aromatase inhibitor, passes through the brain barriers, distributes to the brain, and affects local E2 synthesis. Here, the effects of intra-cerebroventricular (ICV) letrozole administration in the presence and absence of gonads were examined on the cognitive abilities of male and female rats. METHOD Animals received intra-ICV injection of letrozole or vehicle for 14 consecutive days. Spatial working memory, novel object recognition memory, and anxiety-related behavior, were evaluated using Y-maze, object recognition test, and elevated plus maze, respectively. The E2 levels in the serum and hippocampal tissue were measured by the ELISA technique. RT-PCR was performed to assess the hippocampal estrogen receptors (ER) expression. Moreover, letrozole effect on neuronal activity of CA1 pyramidal neurons was studied by in vivo single-unit recording. RESULTS Letrozole (0.2, 0.4, and 0.8 µg) significantly decreased the hippocampal E2 levels compared to the vehicle group. Letrozole caused cognitive impairments in a dose-dependent manner in male and female rats in the presence or absence of gonads. Dose-response analysis revealed that the minimum effective dose of letrozole on the behavioral measures was 0.4 μg. Letrozole also caused an up-regulation of ERα and ERβ and a down-regulation of GPR30 gene expression. The firing rate of pyramidal neurons was reduced by letrozole in gonadal-intact animals. CONCLUSION The detrimental effects of letrozole treatment on cognitive abilities in the presence and absence of gonads indicate that local E2 synthesis in the hippocampus is a crucial factor in normal cognitive performance. The suppressive effect of letrozole on hippocampal neuronal firing might alter synaptic plasticity that is critical for memory formation. These data potentially suggest that memory deficits following letrozole administration should be monitored.
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Affiliation(s)
- Ladan Marbouti
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Neuroscience and Addiction Studies Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Zahmatkesh
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Neuroscience and Addiction Studies Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran; Cognitive and Behavioral Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Esmail Riahi
- Physiology Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Shahabeddin Sadr
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Physiology Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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8
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Amjad E, Asnaashari S, Sokouti B, Dastmalchi S. Systems biology comprehensive analysis on breast cancer for identification of key gene modules and genes associated with TNM-based clinical stages. Sci Rep 2020; 10:10816. [PMID: 32616754 PMCID: PMC7331704 DOI: 10.1038/s41598-020-67643-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 06/12/2020] [Indexed: 12/11/2022] Open
Abstract
Breast cancer (BC), as one of the leading causes of death among women, comprises several subtypes with controversial and poor prognosis. Considering the TNM (tumor, lymph node, metastasis) based classification for staging of breast cancer, it is essential to diagnose the disease at early stages. The present study aims to take advantage of the systems biology approach on genome wide gene expression profiling datasets to identify the potential biomarkers involved at stage I, stage II, stage III, and stage IV as well as in the integrated group. Three HER2-negative breast cancer microarray datasets were retrieved from the GEO database, including normal, stage I, stage II, stage III, and stage IV samples. Additionally, one dataset was also extracted to test the developed predictive models trained on the three datasets. The analysis of gene expression profiles to identify differentially expressed genes (DEGs) was performed after preprocessing and normalization of data. Then, statistically significant prioritized DEGs were used to construct protein-protein interaction networks for the stages for module analysis and biomarker identification. Furthermore, the prioritized DEGs were used to determine the involved GO enrichment and KEGG signaling pathways at various stages of the breast cancer. The recurrence survival rate analysis of the identified gene biomarkers was conducted based on Kaplan-Meier methodology. Furthermore, the identified genes were validated not only by using several classification models but also through screening the experimental literature reports on the target genes. Fourteen (21 genes), nine (17 genes), eight (10 genes), four (7 genes), and six (8 genes) gene modules (total of 53 unique genes out of 63 genes with involving those with the same connectivity degree) were identified for stage I, stage II, stage III, stage IV, and the integrated group. Moreover, SMC4, FN1, FOS, JUN, and KIF11 and RACGAP1 genes with the highest connectivity degrees were in module 1 for abovementioned stages, respectively. The biological processes, cellular components, and molecular functions were demonstrated for outcomes of GO analysis and KEGG pathway assessment. Additionally, the Kaplan-Meier analysis revealed that 33 genes were found to be significant while considering the recurrence-free survival rate as an alternative to overall survival rate. Furthermore, the machine learning calcification models show good performance on the determined biomarkers. Moreover, the literature reports have confirmed all of the identified gene biomarkers for breast cancer. According to the literature evidence, the identified hub genes are highly correlated with HER2-negative breast cancer. The 53-mRNA signature might be a potential gene set for TNM based stages as well as possible therapeutics with potentially good performance in predicting and managing recurrence-free survival rates at stages I, II, III, and IV as well as in the integrated group. Moreover, the identified genes for the TNM-based stages can also be used as mRNA profile signatures to determine the current stage of the breast cancer.
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Affiliation(s)
- Elham Amjad
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Asnaashari
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Babak Sokouti
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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9
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Martí C, Sánchez-Méndez JI. Neoadjuvant endocrine therapy for luminal breast cancer treatment: a first-choice alternative in times of crisis such as the COVID-19 pandemic. Ecancermedicalscience 2020; 14:1027. [PMID: 32368252 PMCID: PMC7192402 DOI: 10.3332/ecancer.2020.1027] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Indexed: 01/09/2023] Open
Abstract
The epidemiological emergency caused by CoV-2 (COVID-19) has changed priorities in breast cancer management. In those places where the pandemic has had the greatest effect, it is of paramount importance for most patients to be at home, reducing or postponing their attendance at clinics, as well as avoiding surgeries. In this scenario, neoadjuvant endocrine treatment could be an appropriate alternative treatment for hormone receptor positive breast cancer (luminal-like tumours) in order to minimise hospital admissions and to delay elective surgeries. Accordingly, we present a simple protocol that can be applied to most cases of luminal-like breast cancer and is appropriate for the majority of secondary or tertiary medical centres, or even primary care.
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Affiliation(s)
- Covadonga Martí
- Breast Cancer Unit, Hospital Universitario La Paz, 28046 Madrid, Spain
- Gynaecology Department, Hospital Universitario La Paz, 28046 Madrid, Spain
| | - José I Sánchez-Méndez
- Breast Cancer Unit, Hospital Universitario La Paz, 28046 Madrid, Spain
- Gynaecology Department, Hospital Universitario La Paz, 28046 Madrid, Spain
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10
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Chen J, Easwaralingam N, Warrier S, Ong A, Carson EK, Mak C, Snook K, Middleton K, Parker A, Palmieri C, Spillane A, Mann GB, Lim E, Segara D. Window of opportunity treatment in breast cancer. ANZ J Surg 2019; 90:34-40. [PMID: 31770829 DOI: 10.1111/ans.15487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 11/27/2022]
Abstract
Window of opportunity therapies, which involve short-term administration of systemic therapy between cancer diagnosis and surgery, have raised significant interest in recent years as a mean of assessing the sensitivity of a patient's cancer to therapy prior to surgery. There is now compelling evidence that in patients with early stage hormone-receptor positive breast cancer, a 2-week preoperative treatment with standard hormone therapies in a preoperative window period provides important prognostic information, which in turn helps to aid decision-making regarding treatment options. Changes in short-term biomarker endpoints such as cell proliferation measured by Ki-67 can act as surrogate markers of long-term outcomes. Paired tissues obtained pre- and post-investigational treatment, without having to subject the patient to additional biopsies, can then be used to conduct translational research to investigate predictive biomarkers and pharmacodynamics. In this review, we will examine the utility and challenges of window of opportunities therapies in breast cancer in the current literature, and the current Australian and international trial landscape in this clinical space.
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Affiliation(s)
- Julia Chen
- Garvan Institute of Medical Research and St Vincent's Hospital, The University of New South Wales, Sydney, New South Wales, Australia
| | - Neshanth Easwaralingam
- Garvan Institute of Medical Research and St Vincent's Hospital, The University of New South Wales, Sydney, New South Wales, Australia
| | - Sanjay Warrier
- Chris O'Brien Lifehouse and The University of Sydney, Sydney, New South Wales, Australia.,Royal Prince Alfred Hospital Institute of Academic Surgery, The University of Sydney, Sydney, New South Wales, Australia
| | - Andrew Ong
- Campbelltown Hospital and The University of Western Sydney, Sydney, New South Wales, Australia
| | - Emma-Kate Carson
- Garvan Institute of Medical Research and St Vincent's Hospital, The University of New South Wales, Sydney, New South Wales, Australia.,Campbelltown Hospital and The University of Western Sydney, Sydney, New South Wales, Australia
| | - Cindy Mak
- Chris O'Brien Lifehouse and The University of Sydney, Sydney, New South Wales, Australia
| | - Kylie Snook
- Breast and Surgical Oncology at the Poche Centre and Northern Clinical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Kate Middleton
- Garvan Institute of Medical Research and St Vincent's Hospital, The University of New South Wales, Sydney, New South Wales, Australia
| | - Andrew Parker
- Garvan Institute of Medical Research and St Vincent's Hospital, The University of New South Wales, Sydney, New South Wales, Australia
| | - Carlo Palmieri
- University of Liverpool, Clatterbridge Cancer Centre, NHS Foundation Trust, and Royal Liverpool University Hospital, Liverpool, UK
| | - Andrew Spillane
- Breast and Surgical Oncology at the Poche Centre and Northern Clinical School, The University of Sydney, Sydney, New South Wales, Australia.,Mater Hospital, Sydney, New South Wales, Australia.,Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - G Bruce Mann
- The Royal Melbourne Hospital and The Royal Women's Hospital, Melbourne, Victoria, Australia.,Department of Surgery, The University of Melbourne, Melbourne, Victoria, Australia
| | - Elgene Lim
- Garvan Institute of Medical Research and St Vincent's Hospital, The University of New South Wales, Sydney, New South Wales, Australia
| | - Davendra Segara
- Garvan Institute of Medical Research and St Vincent's Hospital, The University of New South Wales, Sydney, New South Wales, Australia
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11
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Zhan S, Li J, Ge W. Multifaceted Roles of Asporin in Cancer: Current Understanding. Front Oncol 2019; 9:948. [PMID: 31608236 PMCID: PMC6771297 DOI: 10.3389/fonc.2019.00948] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/09/2019] [Indexed: 12/13/2022] Open
Abstract
The small leucine-rich proteoglycan (SLRP) family consists of 18 members categorized into five distinct classes, the traditional classes I–III, and the non-canonical classes IV–V. Unlike the other class I SLRPs (decorin and biglycan), asporin contains a unique and conserved stretch of aspartate (D) residues in its N terminus, and germline polymorphisms in the D-repeat-length are associated with osteoarthritis and prostate cancer progression. Since the first discovery of asporin in 2001, previous studies have focused mainly on its roles in bone and joint diseases, including osteoarthritis, intervertebral disc degeneration and periodontal ligament mineralization. Recently, asporin gene expression was also reported to be dysregulated in tumor tissues of different types of cancer, and to act as oncogene in pancreatic, colorectal, gastric, and prostate cancers, and some types of breast cancer, though it is also reported to function as a tumor suppressor gene in triple-negative breast cancer. Furthermore, asporin is also positively or negatively correlated with tumor proliferation, migration, invasion, and patient prognosis through its regulation of different signaling pathways, including the TGF-β, EGFR, and CD44 pathways. In this review, we seek to elucidate the signaling pathways and functions regulated by asporin in different types of cancer and to highlight some important issues that require investigation in future research.
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Affiliation(s)
- Shaohua Zhan
- National Key Laboratory of Medical Molecular Biology, Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China.,National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Jinming Li
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Wei Ge
- National Key Laboratory of Medical Molecular Biology, Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China.,Affiliated Hospital of Hebei University, Baoding, China
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12
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Saha T, Makar S, Swetha R, Gutti G, Singh SK. Estrogen signaling: An emanating therapeutic target for breast cancer treatment. Eur J Med Chem 2019; 177:116-143. [PMID: 31129450 DOI: 10.1016/j.ejmech.2019.05.023] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/29/2019] [Accepted: 05/06/2019] [Indexed: 12/15/2022]
Abstract
Breast cancer, a most common malignancy in women, was known to be associated with steroid hormone estrogen. The discovery of estrogen receptor (ER) gave us not only a powerful predictive and prognostic marker, but also an efficient target for the treatment of hormone-dependent breast cancer with various estrogen ligands. ER consists of two subtypes i.e. ERα and ERβ, that are mostly G-protein-coupled receptors and activated by estrogen, specially 17β-estradiol. The activation is followed by translocation into the nucleus and binding with DNA to modulate activities of different genes. ERs can manage synthesis of RNA through genomic actions without directly binding to DNA. Receptors are tethered by protein-protein interactions to a transcription factor complex to communicate with DNA. Estrogens also exhibit nongenomic actions, a characteristic feature of steroid hormones, which are so rapid to be considered by the activation of RNA and translation. These are habitually related to stimulation of different protein kinase cascades. Majority of post-menopausal breast cancer is estrogen dependent, mostly potent biological estrogen (E2) for continuous growth and proliferation. Estrogen helps in regulating the differentiation and proliferation of normal breast epithelial cells. In this review we have investigated the important role of ER in development and progression of breast cancer, which is complicated by receptor's interaction with co-regulatory proteins, cross-talk with other signal transduction pathways and development of treatment strategies viz. selective estrogen receptor modulators (SERMs), selective estrogen receptor down regulators (SERDs), aromatase and sulphatase inhibitors.
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Affiliation(s)
- Tanmay Saha
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, U.P, India
| | - Subhajit Makar
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, U.P, India
| | - Rayala Swetha
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, U.P, India
| | - Gopichand Gutti
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, U.P, India
| | - Sushil K Singh
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, U.P, India.
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13
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Ligibel JA, Dillon D, Giobbie-Hurder A, McTiernan A, Frank E, Cornwell M, Pun M, Campbell N, Dowling RJ, Chang MC, Tolaney S, Chagpar AB, Yung RL, Freedman RA, Dominici LS, Golshan M, Rhei E, Taneja K, Huang Y, Brown M, Winer EP, Jeselsohn R, Irwin ML. Impact of a Pre-Operative Exercise Intervention on Breast Cancer Proliferation and Gene Expression: Results from the Pre-Operative Health and Body (PreHAB) Study. Clin Cancer Res 2019; 25:5398-5406. [DOI: 10.1158/1078-0432.ccr-18-3143] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 03/08/2019] [Accepted: 04/18/2019] [Indexed: 11/16/2022]
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14
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Wanifuchi-Endo Y, Asano T, Kondo N, Hato Y, Dong Y, Hisada T, Nishikawa S, Kato H, Takahashi S, Okuda K, Yamashita H, Toyama T. Effects of serum estradiol and progesterone on estrogen-regulated gene expression in breast cancers of premenopausal patients. Jpn J Clin Oncol 2019; 49:12-21. [PMID: 30395264 DOI: 10.1093/jjco/hyy156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 10/18/2018] [Indexed: 01/17/2023] Open
Abstract
Background Expression of estrogen receptor α in breast cancer is essential for estrogen-dependent growth and partially determines the breast cancer subtype. In premenopausal women, expression of estrogen-regulated genes in estrogen receptor-positive breast cancer tissues are reportedly influenced by the menstrual cycle. Methods We investigated correlations between serum estradiol (E2; tested on the day of surgery) and expression of estrogen-regulated genes and proliferation genes in strongly estrogen receptor α-positive breast cancer tissues from 91 premenopausal women by quantitative reverse transcription-polymerase chain reaction. We also investigated correlations between serum progesterone levels on the day of surgery and mRNA expression of progesterone-regulated genes and proliferation genes. Results The serum E2 level affected expression of estrogen-regulated genes, including progesterone receptor (P = 0.016, Rs = 0.07) but showed no correlation with expression of genes associated with proliferation. We also observed strong positive correlations between mRNA expression of ESR1 and that of estrogen-regulated genes (P < 0.0001, Rs = 0.329-0.756) and proliferation genes (P < 0.0001, Rs = 0.753-0.843). The serum progesterone level affected expression of RANKL mRNA. However, we observed no correlations between serum progesterone and expression of Wnt-4 or proliferation genes. Conclusions The serum E2 level on the day of surgery influences estrogen-regulated gene expression moderately in patients found to be strongly positive for estrogen receptor α by immunohistochemistry. Changes in serum E2 levels might influence the results of molecular profiling tests in premenopausal women with breast cancer.
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Affiliation(s)
- Yumi Wanifuchi-Endo
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Tomoko Asano
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Naoto Kondo
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Yukari Hato
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Yu Dong
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Tomoka Hisada
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Sayaka Nishikawa
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Hiroyuki Kato
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Satoru Takahashi
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Katsuhiro Okuda
- Oncology, Immunology & Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Hiroko Yamashita
- Department of Breast Surgery, Hokkaido University Hospital, North-14, West-5, Kita-ku, Sapporo, Hokkaido, Japan
| | - Tatsuya Toyama
- Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan
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15
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Buus R, Yeo B, Brentnall AR, Klintman M, Cheang MCU, Khabra K, Sestak I, Gao Q, Cuzick J, Dowsett M. Novel 18-gene signature for predicting relapse in ER-positive, HER2-negative breast cancer. Breast Cancer Res 2018; 20:103. [PMID: 30180877 PMCID: PMC6122470 DOI: 10.1186/s13058-018-1040-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 08/08/2018] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Several prognostic signatures for early oestrogen receptor-positive (ER+) breast cancer have been established with a 10-year follow-up. We tested the hypothesis that signatures optimised for 0-5-year and 5-10-year follow-up separately are more prognostic than a single signature optimised for 10 years. METHODS Genes previously identified as prognostic or associated with endocrine resistance were tested in publicly available microarray data set using Cox regression of 747 ER+/HER2- samples from post-menopausal patients treated with 5 years of endocrine therapy. RNA expression of the selected genes was assayed in primary ER+/HER2- tumours from 948 post-menopausal patients treated with 5 years of anastrozole or tamoxifen in the TransATAC cohort. Prognostic signatures for 0-10, 0-5 and 5-10 years were derived using a penalised Cox regression (elastic net). Signature comparison was performed with likelihood ratio statistics. Validation was done by a case-control (POLAR) study in 422 samples derived from a cohort of 1449. RESULTS Ninety-three genes were selected by the modelling of microarray data; 63 of these were significantly prognostic in TransATAC, most similarly across each time period. Contrary to our hypothesis, the derived early and late signatures were not significantly more prognostic than the 18-gene 10-year signature. The 18-gene 10-year signature was internally validated in the TransATAC validation set, showing prognostic information similar to that of Oncotype DX Recurrence Score, PAM50 risk of recurrence score, Breast Cancer Index and IHC4 (score based on four IHC markers), as well as in the external POLAR case-control set. CONCLUSIONS The derived 10-year signature predicts risk of metastasis in patients with ER+/HER2- breast cancer similar to commercial signatures. The hypothesis that early and late prognostic signatures are significantly more informative than a single signature was rejected.
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Affiliation(s)
- Richard Buus
- The Breast Cancer Now Toby Robins Research Centre at the Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB UK
- Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK
| | - Belinda Yeo
- Olivia Newton-John Cancer Research Institute, Melbourne, Australia
- Austin Health, Melbourne, Australia
| | - Adam R. Brentnall
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
| | - Marie Klintman
- Lund University, Skane University Hospital, Faculty of Medicine, Department of Clinical Sciences Lund, Oncology and Pathology, Lund, Sweden
| | | | - Komel Khabra
- Research Data Management and Statistics Unit, Royal Marsden Hospital, London, UK
| | - Ivana Sestak
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
| | - Qiong Gao
- The Breast Cancer Now Toby Robins Research Centre at the Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB UK
| | - Jack Cuzick
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
| | - Mitch Dowsett
- The Breast Cancer Now Toby Robins Research Centre at the Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB UK
- Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK
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16
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Transcriptomic response of breast cancer cells to anacardic acid. Sci Rep 2018; 8:8063. [PMID: 29795261 PMCID: PMC5966448 DOI: 10.1038/s41598-018-26429-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 05/10/2018] [Indexed: 02/07/2023] Open
Abstract
Anacardic acid (AnAc), a potential dietary agent for preventing and treating breast cancer, inhibited the proliferation of estrogen receptor α (ERα) positive MCF-7 and MDA-MB-231 triple negative breast cancer cells. To characterize potential regulators of AnAc action, MCF-7 and MDA-MB-231 cells were treated for 6 h with purified AnAc 24:1n5 congener followed by next generation transcriptomic sequencing (RNA-seq) and network analysis. We reported that AnAc-differentially regulated miRNA transcriptomes in each cell line and now identify AnAc-regulated changes in mRNA and lncRNA transcript expression. In MCF-7 cells, 80 AnAc-responsive genes were identified, including lncRNA MIR22HG. More AnAc-responsive genes (886) were identified in MDA-MB-231 cells. Only six genes were commonly altered by AnAc in both cell lines: SCD, INSIG1, and TGM2 were decreased and PDK4, GPR176, and ZBT20 were increased. Modeling of AnAc-induced gene changes suggests that AnAc inhibits monounsaturated fatty acid biosynthesis in both cell lines and increases endoplasmic reticulum stress in MDA-MB-231 cells. Since modeling of downregulated genes implicated NFκB in MCF-7, we confirmed that AnAc inhibited TNFα-induced NFκB reporter activity in MCF-7 cells. These data identify new targets and pathways that may account for AnAc’s anti-proliferative and pro-apoptotic activity.
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17
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Simkova D, Kharaishvili G, Korinkova G, Ozdian T, Suchánková-Kleplová T, Soukup T, Krupka M, Galandakova A, Dzubak P, Janikova M, Navratil J, Kahounova Z, Soucek K, Bouchal J. The dual role of asporin in breast cancer progression. Oncotarget 2018; 7:52045-52060. [PMID: 27409832 PMCID: PMC5239534 DOI: 10.18632/oncotarget.10471] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 06/29/2016] [Indexed: 12/18/2022] Open
Abstract
Asporin has been reported as a tumor suppressor in breast cancer, while asporin-activated invasion has been described in gastric cancer. According to our in silico search, high asporin expresion associates with significantly better relapse free survival (RFS) in patients with low-grade tumors but RFS is significantly worse in patients with grade 3 tumors. In line with other studies, we have confirmed asporin expression by RNA scope in situ hybridization in cancer associated fibroblasts. We have also found asporin expression in the Hs578T breast cancer cell line which we confirmed by quantitative RT-PCR and western blotting. From multiple testing, we found that asporin can be downregulated by bone morphogenetic protein 4 while upregulation may be facilited by serum-free cultivation or by three dimensional growth in stiff Alvetex scaffold. Downregulation by shRNA inhibited invasion of Hs578T as well as of CAFs and T47D cells. Invasion of asporin-negative MDA-MB-231 and BT549 breast cancer cells through collagen type I was enhanced by recombinant asporin. Besides other investigations, large scale analysis of aspartic acid repeat polymorphism will be needed for clarification of the asporin dual role in progression of breast cancer.
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Affiliation(s)
- Dana Simkova
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Gvantsa Kharaishvili
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Gabriela Korinkova
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Tomas Ozdian
- Laboratory of Experimental Medicine, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Tereza Suchánková-Kleplová
- Department of Histology and Embryology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Tomas Soukup
- Department of Histology and Embryology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Michal Krupka
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Adela Galandakova
- Department of Medical Chemistry and Biochemistry, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Petr Dzubak
- Laboratory of Experimental Medicine, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Maria Janikova
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Jiri Navratil
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Zuzana Kahounova
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic.,Center of Biomolecular and Cellular Engineering, International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Karel Soucek
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic.,Center of Biomolecular and Cellular Engineering, International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jan Bouchal
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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18
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Haynes BP, Ginsburg O, Gao Q, Folkerd E, Afentakis M, Quang LH, Han PT, Khoa PH, Dinh NV, To TV, Clemons M, Smith IE, Dowsett M. Molecular changes in premenopausal oestrogen receptor-positive primary breast cancer in Vietnamese women after oophorectomy. NPJ Breast Cancer 2017; 3:47. [PMID: 29214214 PMCID: PMC5703856 DOI: 10.1038/s41523-017-0049-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 10/20/2017] [Accepted: 11/01/2017] [Indexed: 12/16/2022] Open
Abstract
For premenopausal women with primary ER + breast cancer, oophorectomy (OvX) is an evidence-based cost-effective option and is standard treatment in many countries. However, there is virtually no data describing the effects of OvX on breast tumour biology. We therefore, characterised the endocrine and genome-wide transcriptional impact of OvX in 56 premenopausal women with ER + breast cancer for 2 weeks prior to mastectomy. Plasma estradiol concentrations decreased from 406 ± 41 to 20.7 ± 2.6 pmol/l (mean ± sem) 24 h after OvX, and to 8.1 ± 0.8 pmol/l 2 weeks later at mastectomy. Ki67 decreased in 33/36 (91.7%) tumours. The expression of 655 genes changed significantly (FDR < 1%) with an absolute mean fold-change (FC) ≥ 1.25 (257 up, 398 down). Archetypal oestrogen-regulated genes (TFF1, GREB1, PGR and PDZK1) showed large decreases in expression (FC = 0.20–0.69; p < 1e-6-1e-7). Proliferation-associated genes (e.g. TOP2A, AURKA and UBE2C) were also strongly downregulated (FC = 0.38–0.56; p < 1e-7) along with putative progesterone-regulated genes (e.g. FKBP4, MYB; FC = 0.64–0.68; p < 1e-4-1e-7). The gene expression changes did not differ according to HER2 status and correlated strongly with the changes reported previously after aromatase inhibitor (AI) treatment in postmenopausal women (rho = 0.55, p < 1e-04). However, after OvX the mean FC was significantly higher compared to AI (p < 1e-04). In conclusion, changes in tumoural gene expression after OvX were largely similar, but of a greater magnitude to those observed after AI in postmenopausal patients; however, OvX appeared to have a greater effect on progesterone-regulated genes than AI. Surgical removal of the ovaries alters the expression of hundreds of genes in the tumour cells of premenopausal women with breast cancer. Ben Haynes from Royal Marsden Hospital in London, UK and colleagues characterised molecular changes in 56 premenopausal women from Vietnam with oestrogen receptor-positive breast cancer who underwent oophorectomies, a standard treatment for this patient population. They showed that blood levels of the hormone estradiol dropped precipitously following ovary-removal surgery. Levels of a protein that was indicative of tumour growth also went down, as did genes involved in regulating hormone signalling and cell proliferation. The results are consistent with those seen in postmenopausal women following treatment with an oestrogen-blocking drug, but oophorectomy had a more dramatic effect. The data could aid the search for predictive biomarkers of who stands to benefit most from ovary removal.
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Affiliation(s)
- Ben P Haynes
- The Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, Fulham Road, London, UK
| | - Ophira Ginsburg
- Department of Medicine, University of Toronto, Toronto, Canada.,Department of Population Health, NYU School of Medicine/Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, New York, USA
| | - Qiong Gao
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, Fulham Road, London, UK
| | - Elizabeth Folkerd
- The Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, Fulham Road, London, UK
| | - Maria Afentakis
- The Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, Fulham Road, London, UK
| | - Le Hong Quang
- Department of Breast Surgery, National Cancer Hospital, Hanoi, Vietnam
| | - Pham Thi Han
- Department of Pathology, National Cancer Hospital, Hanoi, Vietnam
| | - Pham Hong Khoa
- Department of Breast Surgery, National Cancer Hospital, Hanoi, Vietnam
| | - Nguyen Van Dinh
- Department of Breast Surgery, National Cancer Hospital, Hanoi, Vietnam
| | - Ta Van To
- Department of Pathology, National Cancer Hospital, Hanoi, Vietnam
| | - Mark Clemons
- Department of Medicine, Division of Medical Oncology, The Ottawa Hospital and University of Ottawa, Ottawa, Canada
| | - Ian E Smith
- The Breast Unit, Department of Medicine, Royal Marsden Hospital, Fulham Road, London, UK
| | - Mitch Dowsett
- The Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, Fulham Road, London, UK.,The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, Fulham Road, London, UK
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19
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Guerrero-Zotano AL, Arteaga CL. Neoadjuvant Trials in ER + Breast Cancer: A Tool for Acceleration of Drug Development and Discovery. Cancer Discov 2017; 7:561-574. [PMID: 28495849 PMCID: PMC5497752 DOI: 10.1158/2159-8290.cd-17-0228] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/03/2017] [Accepted: 04/17/2017] [Indexed: 12/17/2022]
Abstract
Neoadjuvant therapy trials offer an excellent strategy for drug development and discovery in breast cancer, particularly in triple-negative and HER2-overexpressing subtypes, where pathologic complete response is a good surrogate of long-term patient benefit. For estrogen receptor-positive (ER+) breast cancers, however, use of this strategy has been challenging because of the lack of validated surrogates of long-term efficacy and the overall good prognosis of the majority of patients with this cancer subtype. We review below the clinical benefits of neoadjuvant endocrine therapy for ER+/HER2-negative breast cancer, its use and limitations for drug development, prioritization of adjuvant and metastatic trials, and biomarker discovery.Significance: Neoadjuvant endocrine therapy is an excellent platform for the development of investigational drugs, triaging of novel combinations, biomarker validation, and discovery of mechanisms of drug resistance. This review summarizes the clinical and investigational benefits of this approach, with a focus on how to best integrate predictive biomarkers into novel clinical trial designs. Cancer Discov; 7(6); 561-74. ©2017 AACR.
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Affiliation(s)
- Angel L Guerrero-Zotano
- Departments of Medicine and Cancer Biology; Breast Cancer Program, Vanderbilt-Ingram Cancer Center; Vanderbilt University Medical Center, Nashville, Tennessee
| | - Carlos L Arteaga
- Departments of Medicine and Cancer Biology; Breast Cancer Program, Vanderbilt-Ingram Cancer Center; Vanderbilt University Medical Center, Nashville, Tennessee.
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20
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Ma CX, Gao F, Luo J, Northfelt DW, Goetz M, Forero A, Hoog J, Naughton M, Ademuyiwa F, Suresh R, Anderson KS, Margenthaler J, Aft R, Hobday T, Moynihan T, Gillanders W, Cyr A, Eberlein TJ, Hieken T, Krontiras H, Guo Z, Lee MV, Spies NC, Skidmore ZL, Griffith OL, Griffith M, Thomas S, Bumb C, Vij K, Bartlett CH, Koehler M, Al-Kateb H, Sanati S, Ellis MJ. NeoPalAna: Neoadjuvant Palbociclib, a Cyclin-Dependent Kinase 4/6 Inhibitor, and Anastrozole for Clinical Stage 2 or 3 Estrogen Receptor-Positive Breast Cancer. Clin Cancer Res 2017; 23:4055-4065. [PMID: 28270497 DOI: 10.1158/1078-0432.ccr-16-3206] [Citation(s) in RCA: 228] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 12/19/2016] [Accepted: 03/01/2017] [Indexed: 01/15/2023]
Abstract
Purpose: Cyclin-dependent kinase (CDK) 4/6 drives cell proliferation in estrogen receptor-positive (ER+) breast cancer. This single-arm phase II neoadjuvant trial (NeoPalAna) assessed the antiproliferative activity of the CDK4/6 inhibitor palbociclib in primary breast cancer as a prelude to adjuvant studies.Experimental Design: Eligible patients with clinical stage II/III ER+/HER2- breast cancer received anastrozole 1 mg daily for 4 weeks (cycle 0; with goserelin if premenopausal), followed by adding palbociclib (125 mg daily on days 1-21) on cycle 1 day 1 (C1D1) for four 28-day cycles unless C1D15 Ki67 > 10%, in which case patients went off study due to inadequate response. Anastrozole was continued until surgery, which occurred 3 to 5 weeks after palbociclib exposure. Later patients received additional 10 to 12 days of palbociclib (Cycle 5) immediately before surgery. Serial biopsies at baseline, C1D1, C1D15, and surgery were analyzed for Ki67, gene expression, and mutation profiles. The primary endpoint was complete cell cycle arrest (CCCA: central Ki67 ≤ 2.7%).Results: Fifty patients enrolled. The CCCA rate was significantly higher after adding palbociclib to anastrozole (C1D15 87% vs. C1D1 26%, P < 0.001). Palbociclib enhanced cell-cycle control over anastrozole monotherapy regardless of luminal subtype (A vs. B) and PIK3CA status with activity observed across a broad range of clinicopathologic and mutation profiles. Ki67 recovery at surgery following palbociclib washout was suppressed by cycle 5 palbociclib. Resistance was associated with nonluminal subtypes and persistent E2F-target gene expression.Conclusions: Palbociclib is an active antiproliferative agent for early-stage breast cancer resistant to anastrozole; however, prolonged administration may be necessary to maintain its effect. Clin Cancer Res; 23(15); 4055-65. ©2017 AACR.
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Affiliation(s)
- Cynthia X Ma
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri.
| | - Feng Gao
- Division of Public Health Science, Siteman Cancer Center Biostatistics Core, Washington University School of Medicine, St. Louis, Missouri
| | - Jingqin Luo
- Division of Public Health Science, Siteman Cancer Center Biostatistics Core, Washington University School of Medicine, St. Louis, Missouri
| | - Donald W Northfelt
- Division of Hematology and Medical Oncology, Mayo Clinic, Phoenix, Arizona
| | - Matthew Goetz
- Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota
| | - Andres Forero
- Department of Hematology and Oncology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Jeremy Hoog
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Michael Naughton
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Foluso Ademuyiwa
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Rama Suresh
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Karen S Anderson
- Division of Hematology and Medical Oncology, Mayo Clinic, Phoenix, Arizona
| | - Julie Margenthaler
- Section of Endocrine and Oncologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Rebecca Aft
- Section of Endocrine and Oncologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Timothy Hobday
- Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota
| | - Timothy Moynihan
- Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota
| | - William Gillanders
- Section of Endocrine and Oncologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Amy Cyr
- Section of Endocrine and Oncologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Timothy J Eberlein
- Section of Endocrine and Oncologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Tina Hieken
- Department of Surgery, Mayo Clinic, Rochester, Minnesota
| | - Helen Krontiras
- Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Zhanfang Guo
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Michelle V Lee
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Nicholas C Spies
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri
| | - Zachary L Skidmore
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri
| | - Obi L Griffith
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri.,McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri.,Department of Genetics, Washington University School of Medicine, St. Louis, Missouri
| | - Malachi Griffith
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri.,Department of Genetics, Washington University School of Medicine, St. Louis, Missouri
| | - Shana Thomas
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Caroline Bumb
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Kiran Vij
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | | | | | - Hussam Al-Kateb
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Souzan Sanati
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Matthew J Ellis
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas.
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21
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Flågeng MH, Larionov A, Geisler J, Knappskog S, Prestvik WS, Bjørkøy G, Lilleng PK, Dixon JM, Miller WR, Lønning PE, Mellgren G. Treatment with aromatase inhibitors stimulates the expression of epidermal growth factor receptor-1 and neuregulin 1 in ER positive/HER-2/neu non-amplified primary breast cancers. J Steroid Biochem Mol Biol 2017; 165:228-235. [PMID: 27343990 DOI: 10.1016/j.jsbmb.2016.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 06/20/2016] [Accepted: 06/22/2016] [Indexed: 11/28/2022]
Abstract
While estrogens have been shown to modulate EGFR/HER-1 and HER-2/neu expression in experimental systems, the effects of estrogen deprivation on expression levels of the HER-receptors and the neuregulin (NRG)1 ligand in breast cancers remain unknown. Here, we measured EGFR/HER-1-4 and NRG1 mRNA in ER positive tumors from 85 postmenopausal breast cancer patients before and after two weeks (n=64) and three months (n=85) of primary treatment with an aromatase inhibitor (AI). In tumors lacking HER-2/neu amplification, quantitative real-time PCR analyses revealed EGFR/HER-1 and NRG1 to vary significantly between the three time points (before therapy, after 2 weeks and after 3 months on treatment; P≤0.001 for both). Pair-wise comparison revealed a significant increase in EGFR/HER-1 already during the first two weeks of treatment (P=0.049) with a further increase for both EGFR/HER-1 and NRG1 after 3 months on treatment (P≤0.001 and P=0.001 for both comparing values at 3 months to values at baseline and 2 weeks respectively). No difference between tumors responding versus non-responders was recorded. Further, no significant change in any parameter was observed among HER-2/neu amplified tumors. Analyzing components of the HER-2/neu PI3K/Akt downstream pathway, the PIK3CA H1047R mutation was associated with treatment response (P=0.035); however no association between either AKT phosphorylation status or PIK3CA gene mutations and EGFR/HER-1 or NRG1 expression levels were observed. Our results indicate primary AI treatment to modulate expression of HER-family members and the growth factor NRG1 in HER-2/neu non-amplified breast cancers in vivo. Potential implications to long term sensitivity warrants further investigations.
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Affiliation(s)
- Marianne Hauglid Flågeng
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; Hormone Laboratory, Haukeland University Hospital, 5021 Bergen, Norway.
| | - Alexey Larionov
- University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, United Kingdom; Department of Medical Genetics, Cambridge University, Cambridge, United Kingdom.
| | - Jürgen Geisler
- Department of Oncology, Akershus University Hospital, 1478 Lørenskog, Norway; Institute of Clinical Medicine, University of Oslo, 0316 Oslo, Norway.
| | - Stian Knappskog
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; Department of Oncology, Haukeland University Hospital, 5021 Bergen, Norway.
| | - Wenche S Prestvik
- Department of Technology, University College of Sør-Trøndelag, 7491 Trondheim, Norway.
| | - Geir Bjørkøy
- Department of Technology, University College of Sør-Trøndelag, 7491 Trondheim, Norway.
| | - Peer Kåre Lilleng
- The Gades Laboratory for Pathology, Department of Clinical Medicine, University of Bergen, 5021 Bergen, Norway; Department of Pathology, Haukeland University Hospital, 5021 Bergen, Norway.
| | - J Michael Dixon
- University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, United Kingdom.
| | - William R Miller
- University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, United Kingdom.
| | - Per Eystein Lønning
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; Department of Oncology, Haukeland University Hospital, 5021 Bergen, Norway.
| | - Gunnar Mellgren
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; Hormone Laboratory, Haukeland University Hospital, 5021 Bergen, Norway.
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22
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Aromatase inhibitors: A comprehensive review in mechanisms of action, side effects and treatment in postmenopausal early breast cancer patients. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s13126-016-0326-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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23
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Simkova D, Kharaishvili G, Slabakova E, Murray PG, Bouchal J. Glycoprotein asporin as a novel player in tumour microenvironment and cancer progression. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2016; 160:467-473. [PMID: 27605398 DOI: 10.5507/bp.2016.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/08/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Small leucine rich proteoglycans (SLRPs), major non-collagen components of the extracellular matrix (ECM), have multiple biological roles with diverse effects. Asporin, a member of the SLRPs class I, competes with other molecules in binding to collagen and affects its mineralization. Its role in cancer is only now being elucidated. METHODS The PubMed online database was used to search relevant reviews and original articles. Furthermore, altered asporin expression was analysed in publicly available genome-wide expression data at the Gene Expression Omnibus database. RESULTS Polymorphisms in the N-terminal polyaspartate domain, which binds calcium, are associated with osteoarthritis and prostate cancer. Asporin also promotes the progression of scirrhous gastric cancer where it is required for coordinated invasion by cancer associated fibroblasts and cancer cells. Besides the enhanced expression of asporin observed in multiple cancer types, such as breast, prostate, gastric, pancreas and colon cancer, tumour suppressive effects of asporin were described in triple-negative breast cancer. We also discuss a number of factors modulating asporin expression in different cell types relevant for alterations toing the tumour microenvironment. CONCLUSION The apparent contradicting tumour promoting and suppressive effects of asporin require further investigation. Deciphering the role of asporin and other SLRPs in tumour-stroma interactions is needed for a better understanding of cancer progression and potentially also for novel tumour microenvironment based therapies.
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Affiliation(s)
- Dana Simkova
- Department of Clinical and Molecular Pathology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Gvantsa Kharaishvili
- Department of Clinical and Molecular Pathology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Eva Slabakova
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic
| | - Paul G Murray
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Jan Bouchal
- Department of Clinical and Molecular Pathology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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24
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Maugeri-Saccà M, Barba M, Vici P, Pizzuti L, Sergi D, Catenaro T, Di Lauro L, Mottolese M, Santini D, Milella M, De Maria R. Presurgical window of opportunity trial design as a platform for testing anticancer drugs: Pros, cons and a focus on breast cancer. Crit Rev Oncol Hematol 2016; 106:132-42. [PMID: 27637358 DOI: 10.1016/j.critrevonc.2016.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 06/17/2016] [Accepted: 08/16/2016] [Indexed: 12/24/2022] Open
Abstract
The high attrition rate is a major issue in anticancer drug development. Among the alternative trial designs, presurgical window of opportunity trials envision a short course treatment in the time window between diagnostic biopsy and surgery in a moderately-sized patient population. This approach allows testing therapeutics when pre- and post-treatment tumor tissues are available for comprehensive molecular analyses. The emerging evidence may help define the ability of a given agent to modulate its target(s) and help obtain a broader picture of the molecular changes operated by the treatment. The resulting gain may outweigh the potential harms for patients in the early disease setting. Window of opportunity trials have been extensively applied to breast cancer. Overall, a wider use of these trial designs might lead to the identification of potential responders, ineffective drugs or combinations, and ultimately contribute to enhance the efficiency of the clinical developmental process.
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Affiliation(s)
- Marcello Maugeri-Saccà
- Division of Medical Oncology 2, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy; Scientific Direction, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy.
| | - Maddalena Barba
- Division of Medical Oncology 2, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy; Scientific Direction, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy.
| | - Patrizia Vici
- Division of Medical Oncology 2, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Laura Pizzuti
- Division of Medical Oncology 2, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Domenico Sergi
- Division of Medical Oncology 2, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Teresa Catenaro
- Division of Medical Oncology 2, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Luigi Di Lauro
- Division of Medical Oncology 2, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Marcella Mottolese
- Department of Pathology, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Daniele Santini
- Department of Medical Oncology, Campus Bio-Medico, University of Rome, 00128 Rome, Italy
| | - Michele Milella
- Division of Medical Oncology A, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Ruggero De Maria
- Scientific Direction, Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
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25
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Aromatase inhibition remodels the clonal architecture of estrogen-receptor-positive breast cancers. Nat Commun 2016; 7:12498. [PMID: 27502118 PMCID: PMC4980485 DOI: 10.1038/ncomms12498] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 07/07/2016] [Indexed: 02/06/2023] Open
Abstract
Resistance to oestrogen-deprivation therapy is common in oestrogen-receptor-positive (ER+) breast cancer. To better understand the contributions of tumour heterogeneity and evolution to resistance, here we perform comprehensive genomic characterization of 22 primary tumours sampled before and after 4 months of neoadjuvant aromatase inhibitor (NAI) treatment. Comparing whole-genome sequencing of tumour/normal pairs from the two time points, with coincident tumour RNA sequencing, reveals widespread spatial and temporal heterogeneity, with marked remodelling of the clonal landscape in response to NAI. Two cases have genomic evidence of two independent tumours, most obviously an ER− ‘collision tumour', which was only detected after NAI treatment of baseline ER+ disease. Many mutations are newly detected or enriched post treatment, including two ligand-binding domain mutations in ESR1. The observed clonal complexity of the ER+ breast cancer genome suggests that precision medicine approaches based on genomic analysis of a single specimen are likely insufficient to capture all clinically significant information. Aromatase inhibitors are used to treat oestrogen-receptor-positive breast cancer. Here, the authors use genomic approaches to analyse tumours before and after neo-adjuvant treatment and find that treatment alters the clonal landscape of the tumours.
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26
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De Marchi T, Foekens JA, Umar A, Martens JWM. Endocrine therapy resistance in estrogen receptor (ER)-positive breast cancer. Drug Discov Today 2016; 21:1181-8. [PMID: 27233379 DOI: 10.1016/j.drudis.2016.05.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 04/25/2016] [Accepted: 05/18/2016] [Indexed: 12/20/2022]
Abstract
Estrogen receptor (ER)-positive breast cancer represents the majority (∼70%) of all breast malignancies. In this subgroup of breast cancers, endocrine therapies are effective both in the adjuvant and recurrent settings, although resistance remains a major issue. Several high-throughput approaches have been used to elucidate mechanisms of resistance and to derive potential predictive markers or alternative therapies. In this review, we cover the state-of-the-art of endocrine-resistance biomarker discovery with regard to the latest technological developments, and discuss current opportunities and restrictions for their implementation into a clinical setting.
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Affiliation(s)
- Tommaso De Marchi
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - John A Foekens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Arzu Umar
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - John W M Martens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
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27
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Clarke DJ, Murray E, Faktor J, Mohtar A, Vojtesek B, MacKay CL, Smith PL, Hupp TR. Mass spectrometry analysis of the oxidation states of the pro-oncogenic protein anterior gradient-2 reveals covalent dimerization via an intermolecular disulphide bond. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2016; 1864:551-61. [DOI: 10.1016/j.bbapap.2016.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/23/2016] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
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28
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Varešlija D, McBryan J, Fagan A, Redmond AM, Hao Y, Sims AH, Turnbull A, Dixon JM, Ó Gaora P, Hudson L, Purcell S, Hill ADK, Young LS. Adaptation to AI Therapy in Breast Cancer Can Induce Dynamic Alterations in ER Activity Resulting in Estrogen-Independent Metastatic Tumors. Clin Cancer Res 2016; 22:2765-77. [PMID: 26763249 DOI: 10.1158/1078-0432.ccr-15-1583] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 12/20/2015] [Indexed: 11/16/2022]
Abstract
PURPOSE Acquired resistance to aromatase inhibitor (AI) therapy is a major clinical problem in the treatment of breast cancer. The detailed mechanisms of how tumor cells develop this resistance remain unclear. Here, the adapted function of estrogen receptor (ER) to an estrogen-depleted environment following AI treatment is reported. EXPERIMENTAL DESIGN Global ER chromatin immuno-precipitation (ChIP)-seq analysis of AI-resistant cells identified steroid-independent ER target genes. Matched patient tumor samples, collected before and after AI treatment, were used to assess ER activity. RESULTS Maintained ER activity was observed in patient tumors following neoadjuvant AI therapy. Genome-wide ER-DNA-binding analysis in AI-resistant cell lines identified a subset of classic ligand-dependent ER target genes that develop steroid independence. The Kaplan-Meier analysis revealed a significant association between tumors, which fail to decrease this steroid-independent ER target gene set in response to neoadjuvant AI therapy, and poor disease-free survival and overall survival (n = 72 matched patient tumor samples, P = 0.00339 and 0.00155, respectively). The adaptive ER response to AI treatment was highlighted by the ER/AIB1 target gene, early growth response 3 (EGR3). Elevated levels of EGR3 were detected in endocrine-resistant local disease recurrent patient tumors in comparison with matched primary tissue. However, evidence from distant metastatic tumors demonstrates that the ER signaling network may undergo further adaptations with disease progression as estrogen-independent ER target gene expression is routinely lost in established metastatic tumors. CONCLUSIONS Overall, these data provide evidence of a dynamic ER response to endocrine treatment that may provide vital clues for overcoming the clinical issue of therapy resistance. Clin Cancer Res; 22(11); 2765-77. ©2016 AACR.
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Affiliation(s)
- Damir Varešlija
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Jean McBryan
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Ailís Fagan
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Aisling M Redmond
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Yuan Hao
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York
| | - Andrew H Sims
- University of Edinburgh Cancer Research Centre, Carrington Crescent, Edinburgh, EH4 2XU, United Kingdom
| | - Arran Turnbull
- University of Edinburgh Cancer Research Centre, Carrington Crescent, Edinburgh, EH4 2XU, United Kingdom
| | - J M Dixon
- University of Edinburgh Cancer Research Centre, Carrington Crescent, Edinburgh, EH4 2XU, United Kingdom
| | - Peadar Ó Gaora
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin 4, Ireland
| | - Lance Hudson
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Siobhan Purcell
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Arnold D K Hill
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Leonie S Young
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland.
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29
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Kallak TK, Baumgart J, Nilsson K, Åkerud H, Poromaa IS, Stavreus-Evers A. Vaginal Gene Expression During Treatment With Aromatase Inhibitors. Clin Breast Cancer 2015; 15:527-535.e2. [DOI: 10.1016/j.clbc.2015.06.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 06/23/2015] [Accepted: 06/29/2015] [Indexed: 10/23/2022]
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30
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López-Knowles E, Wilkerson PM, Ribas R, Anderson H, Mackay A, Ghazoui Z, Rani A, Osin P, Nerurkar A, Renshaw L, Larionov A, Miller WR, Dixon JM, Reis-Filho JS, Dunbier AK, Martin LA, Dowsett M. Integrative analyses identify modulators of response to neoadjuvant aromatase inhibitors in patients with early breast cancer. Breast Cancer Res 2015; 17:35. [PMID: 25888249 PMCID: PMC4406016 DOI: 10.1186/s13058-015-0532-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 02/05/2015] [Indexed: 01/31/2023] Open
Abstract
INTRODUCTION Aromatase inhibitors (AIs) are a vital component of estrogen receptor positive (ER+) breast cancer treatment. De novo and acquired resistance, however, is common. The aims of this study were to relate patterns of copy number aberrations to molecular and proliferative response to AIs, to study differences in the patterns of copy number aberrations between breast cancer samples pre- and post-AI neoadjuvant therapy, and to identify putative biomarkers for resistance to neoadjuvant AI therapy using an integrative analysis approach. METHODS Samples from 84 patients derived from two neoadjuvant AI therapy trials were subjected to copy number profiling by microarray-based comparative genomic hybridisation (aCGH, n=84), gene expression profiling (n=47), matched pre- and post-AI aCGH (n=19 pairs) and Ki67-based AI-response analysis (n=39). RESULTS Integrative analysis of these datasets identified a set of nine genes that, when amplified, were associated with a poor response to AIs, and were significantly overexpressed when amplified, including CHKA, LRP5 and SAPS3. Functional validation in vitro, using cell lines with and without amplification of these genes (SUM44, MDA-MB134-VI, T47D and MCF7) and a model of acquired AI-resistance (MCF7-LTED) identified CHKA as a gene that when amplified modulates estrogen receptor (ER)-driven proliferation, ER/estrogen response element (ERE) transactivation, expression of ER-regulated genes and phosphorylation of V-AKT murine thymoma viral oncogene homolog 1 (AKT1). CONCLUSIONS These data provide a rationale for investigation of the role of CHKA in further models of de novo and acquired resistance to AIs, and provide proof of concept that integrative genomic analyses can identify biologically relevant modulators of AI response.
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Affiliation(s)
- Elena López-Knowles
- Royal Marsden Hospital, London, UK.
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
| | - Paul M Wilkerson
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
| | - Ricardo Ribas
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
| | - Helen Anderson
- Royal Marsden Hospital, London, UK.
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
| | - Alan Mackay
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
| | - Zara Ghazoui
- Royal Marsden Hospital, London, UK.
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
- Current affiliation: AstraZeneca, Alderley Park, Macclesfield, SK10 4TG, UK.
| | - Aradhana Rani
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
| | | | | | | | - Alexey Larionov
- University of Edinburgh, Edinburgh, UK.
- Current affiliation: Academic Laboratory of Medical Genetics, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
| | | | | | - Jorge S Reis-Filho
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
- Current affiliation: Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, USA.
| | - Anita K Dunbier
- Royal Marsden Hospital, London, UK.
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
- Current affiliation: Department of Biochemistry, University of Otago, Dunedin, New Zealand.
| | - Lesley-Ann Martin
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
| | - Mitch Dowsett
- Royal Marsden Hospital, London, UK.
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK.
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Abstract
Around 70% of all breast cancers are estrogen receptor alpha positive and hence their development is highly dependent on estradiol. While the invention of endocrine therapies has revolusioned the treatment of the disease, resistance to therapy eventually occurs in a large number of patients. This paper seeks to illustrate and discuss the complexity and heterogeneity of the mechanisms which underlie resistance and the approaches proposed to combat them. It will also focus on the use and development of methods for predicting which patients are likely to develop resistance.
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Arthur LM, Turnbull AK, Webber VL, Larionov AA, Renshaw L, Kay C, Thomas JS, Dixon JM, Sims AH. Molecular Changes in Lobular Breast Cancers in Response to Endocrine Therapy. Cancer Res 2014; 74:5371-6. [DOI: 10.1158/0008-5472.can-14-0620] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Canonical and new generation anticancer drugs also target energy metabolism. Arch Toxicol 2014; 88:1327-50. [PMID: 24792321 DOI: 10.1007/s00204-014-1246-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 04/15/2014] [Indexed: 01/05/2023]
Abstract
Significant efforts have been made for the development of new anticancer drugs (protein kinase or proteasome inhibitors, monoclonal humanized antibodies) with presumably low or negligible side effects and high specificity. However, an in-depth analysis of the side effects of several currently used canonical (platin-based drugs, taxanes, anthracyclines, etoposides, antimetabolites) and new generation anticancer drugs as the first line of clinical treatment reveals significant perturbation of glycolysis and oxidative phosphorylation. Canonical and new generation drug side effects include decreased (1) intracellular ATP levels, (2) glycolytic/mitochondrial enzyme/transporter activities and/or (3) mitochondrial electrical membrane potentials. Furthermore, the anti-proliferative effects of these drugs are markedly attenuated in tumor rho (0) cells, in which functional mitochondria are absent; in addition, several anticancer drugs directly interact with isolated mitochondria affecting their functions. Therefore, several anticancer drugs also target the energy metabolism, and hence, the documented inhibitory effect of anticancer drugs on cancer growth should also be linked to the blocking of ATP supply pathways. These often overlooked effects of canonical and new generation anticancer drugs emphasize the role of energy metabolism in maintaining cancer cells viable and its targeting as a complementary and successful strategy for cancer treatment.
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Gao Q, Patani N, Dunbier AK, Ghazoui Z, Zvelebil M, Martin LA, Dowsett M. Effect of aromatase inhibition on functional gene modules in estrogen receptor-positive breast cancer and their relationship with antiproliferative response. Clin Cancer Res 2014; 20:2485-94. [PMID: 24634384 DOI: 10.1158/1078-0432.ccr-13-2602] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To investigate potential associations between gene modules representing key biologic processes and response to aromatase inhibitors (AI) in estrogen receptor-positive (ER(+)) breast cancer. PATIENTS AND METHODS Paired gene expression and Ki67 protein expression were available from 69 postmenopausal women with ER(+) early breast cancer, at baseline and 2 weeks post-anastrozole treatment, in the presurgical setting. Functional gene modules (n = 26) were retrieved from published studies and their module scores were computed before and after elimination of proliferation-associated genes (PAG). Ki67 and module scores were assessed at baseline and 2 weeks post-anastrozole. Unsupervised clustering was used to assess associations between modules and Ki67. RESULTS Proliferation-based modules were highly correlated with Ki67 expression both pretreatment and on-treatment. At baseline with and without PAGs, Ki67 expression was significantly inversely correlated with ERG, ESR1.2, SET, and PIK3CA modules. Modules measuring estrogen signaling strongly predicted antiproliferative response to therapy with and without PAGs. Baseline expression of insulin-like growth factor-1 (IGF-I) module predicted a poor change in Ki67-implicating genes within the module as involved in de novo resistance to AIs. High expression of Immune.2.STAT1 module pretreatment predicted poor antiproliferative response to therapy. A significant association between estrogen-regulated genes modules (ESR1, ESR1-2, SET, and ERG) was evident post AI. CONCLUSIONS Multiple processes and pathways are affected by AI treatment in ER(+) breast cancer. Modules closely associated with ESR1 expression were predictive of good antiproliferative response to AIs, but modules representing immune activity and IGF-I/MAPK were predictive of poor Ki67 response, supporting their therapeutic targeting in combination with AIs.
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Affiliation(s)
- Qiong Gao
- Authors' Affiliations: Breakthrough Breast Cancer Research Centre, Institute of Cancer Research; Academic Department of Biochemistry, Royal Marsden Foundation Trust, London, United Kingdom; and Department of Biochemistry, University of Otago, Dunedin, New Zealand
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Gonzalez-Cortijo L. Neoadjuvant endocrine therapy in breast cancer. BREAST CANCER MANAGEMENT 2014. [DOI: 10.2217/bmt.13.77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SUMMARY Preoperative therapy in breast cancer was initially considered a therapeutic tool to downstage large tumors. In the last few years, neoadjuvant endocrine therapy has emerged as an active approach for the treatment of locally advanced estrogen receptor-positive breast cancer. Moreover, the parallel results obtained with neoadjuvant and adjuvant endocrine trials suggest that rationale for future adjuvant designs should be based on previously confirmed positive outcomes obtained in neoadjuvant studies. Ki-67, a proliferation-associated antigen determined by serial biopsies during therapy, has been validated as a biomarker and can provide useful information to define prognosis and establish therapeutic decisions. This review focuses on the classical indications of neoadjuvant endocrine therapy, the parallelism between adjuvant and neoadjuvant studies and the potential role of this approach to predict outcomes based on short-term molecular markers in estrogen receptor-positive breast cancer.
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Patani N, Martin LA. Understanding response and resistance to oestrogen deprivation in ER-positive breast cancer. Mol Cell Endocrinol 2014; 382:683-694. [PMID: 24121024 DOI: 10.1016/j.mce.2013.09.038] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/30/2013] [Accepted: 09/30/2013] [Indexed: 01/01/2023]
Abstract
Oestrogens (E) and oestrogen receptor alpha (ERα) play fundamental roles in the development and progression of more than three-quarters of breast cancers (BC). The ability to influence the natural history of BC by hormonal manipulation is well established and endocrine therapies represent the cornerstone of systemic management for women with ERα-positive disease. Endocrine agents abrogate oestrogenic signalling through distinct and incompletely overlapping mechanisms, either impeding the transcriptional activity of ERα or diminishing E-synthesis. In post-menopausal women, E-production is chiefly attributable to the enzymatic conversion of androgens in extra-gonadal tissues by the cytochrome P-450 superfamily member aromatase. Greater understanding of steroid biosynthesis has underpinned rational drug design and pharmacological development of potent and specific aromatase inhibitors (AIs). Contemporary agents induce profound E-suppression in post-menopausal women and are first-line neo-adjuvant, adjuvant and metastatic therapies, with greater efficacy and tolerability than tamoxifen. The principal qualifier for endocrine treatment, including AIs, remains ERα expression. However, it is increasingly apparent that ERα expression is not synonymous with sensitivity to treatment and insufficient to account for the considerable heterogeneity of response. Better predictive biomarkers of de novo resistance are required to improve patient selection and identify those poor-responders who may benefit from alternative or additional systemic treatment from the outset. Among patients who do respond well initially, many relapse during their clinical course and there is also an unmet need for biomarkers of acquired resistance. The majority of women who relapse on AIs continue to express functional ERα which remains a legitimate target for second-line endocrine therapy. Understanding and overcoming acquired resistance to AIs requires a greater appreciation of ERα biology and the mechanisms though which E-dependence can be subverted. In this article, we review the impact of therapeutic E-deprivation on the natural history of ERα-positive breast cancer. Consideration is given to established and emerging biomarkers and/or determinants of response and resistance to E-deprivation. In vitro and in vivo evidence of the molecular mechanisms underpinning the transition from sensitivity to resistance are reviewed in the context of current models of ERα activity and their potential translational relevance.
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Affiliation(s)
- N Patani
- Academic Department of Biochemistry, Royal Marsden Foundation Trust, London, UK; Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London SW3 6JB, UK
| | - L-A Martin
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London SW3 6JB, UK.
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Bilecová-Rabajdová M, Birková A, Urban P, Gregová K, Ďurovcová E, Mareková M. Naturally Occurring Substances and Their Role in Chemo-protective Effects. Cent Eur J Public Health 2013; 21:213-9. [DOI: 10.21101/cejph.a3886] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lu Y, You M, Ghazoui Z, Liu P, Vedell PT, Wen W, Bode AM, Grubbs CJ, Lubet RA. Concordant effects of aromatase inhibitors on gene expression in ER+ Rat and human mammary cancers and modulation of the proteins coded by these genes. Cancer Prev Res (Phila) 2013; 6:1151-61. [PMID: 24067424 DOI: 10.1158/1940-6207.capr-13-0126] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Aromatase inhibitors are effective in therapy/prevention of estrogen receptor-positive (ER⁺) breast cancers. Rats bearing methylnitrosourea (MNU)-induced ER⁺ mammary cancers were treated with the aromatase inhibitor vorozole (1.25 mg/kg BW/day) for five days. RNA expression showed 162 downregulated and 180 upregulated (P < 0.05 and fold change >1.5) genes. Genes modulated by vorozole were compared with published data from four clinical neoadjuvant trials using aromatase inhibitors (anastrozole or letrozole). More than 30 genes and multiple pathways exhibited synchronous changes in animal and human datasets. Cell-cycle genes related to chromosome condensation in prometaphase [anaphase-prometaphase complex (APC) pathway, including Aurora-A kinase, BUBR1B, TOP2, cyclin A, cyclin B CDC2, and TPX-2)] were downregulated in animal and human studies reflecting the strong antiproliferative effects of aromatase inhibitors. Comparisons of rat arrays with a cell culture study where estrogen was removed from MCF-7 cells showed decreased expression of E2F1-modulated genes as a major altered pathway. Alterations of the cell cycle and E2F-related genes were confirmed in a large independent set of human samples (81 pairs baseline and two weeks anastrozole treatment). Decreases in proliferation-related genes were confirmed at the protein level for cyclin A2, BuRB1, cdc2, Pttg, and TPX-2. Interestingly, the proteins downregulated in tumors were similarly downregulated in vorozole-treated normal rat mammary epithelium. Finally, decreased expression of known estrogen-responsive genes (including TFF, 1,3, progesterone receptor, etc.) were decreased in the animal model. These studies demonstrate that gene expression changes (pathways and individual genes) are similar in humans and the rat model.
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Affiliation(s)
- Yan Lu
- University of Alabama at Birmingham, 1670 University Boulevard, Volker Hall G-78-D Box 800, Birmingham, AL 35294.
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Kim H, Abd Elmageed ZY, Ju J, Naura AS, Abdel-Mageed AB, Varughese S, Paul D, Alahari S, Catling A, Kim JG, Boulares AH. PDZK1 is a novel factor in breast cancer that is indirectly regulated by estrogen through IGF-1R and promotes estrogen-mediated growth. Mol Med 2013; 19:253-62. [PMID: 23821363 DOI: 10.2119/molmed.2011.00001] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Accepted: 06/25/2013] [Indexed: 01/09/2023] Open
Abstract
Although a relationship between PDZK1 expression and estrogen receptor (ER)-α stimulation has been suggested, the nature of such a connection and the function of PDZK1 in breast cancer remain unknown. Human tissue microarrays (cancer tissue: 262 cores; normal tissue: 87 cores) and breast cancer cell lines were used to conduct the study. We show that PDZK1 protein expression is tightly correlated with human breast malignancy, is negatively correlated with age and had no significant correlation with ER-α expression levels. PDZK1 exhibited an exclusive epithelial expression with mostly cytosolic subcellular localization. Additionally, 17β-estradiol induced PDZK1 expression above its basal level more than 24 h after treatment in MCF-7 cells. PDZK1 expression was indirectly regulated by ER-α stimulation, requiring insulinlike growth factor 1 receptor (IGF-1R) expression and function. The molecular link between PDZK1 and IGF-1R was supported by a significant correlation between protein and mRNA levels (r = 0.591, p < 0.001, and r = 0.537, p < 0.001, respectively) of the two factors in two different cohorts of human breast cancer tissues. Interestingly, PDZK1 knockdown in MCF-7 cells blocked ER-dependent growth and reduced c-Myc expression, whereas ectopic expression of PDZK1 enhanced cell proliferation in the presence or absence of 17β-estradiol potentially through an increase in c-Myc expression, suggesting that PDZK1 has oncogenic activity. PDKZ1 also appeared to interact with the Src/ER-α/epidermal growth factor receptor (EGFR) complex, but not with IGF-1R and enhanced EGFR-stimulated MEK/ERK1/2 signaling. Collectively, our results clarify the relationship between ER-α and PDZK1, propose a direct relationship between PDZK1 and IGF-1R, and identify a novel oncogenic activity for PDZK1 in breast cancer.
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Affiliation(s)
- Hogyoung Kim
- The Stanley Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
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Salmans ML, Zhao F, Andersen B. The estrogen-regulated anterior gradient 2 (AGR2) protein in breast cancer: a potential drug target and biomarker. Breast Cancer Res 2013; 15:204. [PMID: 23635006 PMCID: PMC3672732 DOI: 10.1186/bcr3408] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Initially discovered as an estrogen-responsive gene in breast cancer cell lines, anterior gradient 2 (AGR2) is a developmentally regulated gene belonging to the protein disulfide isomerase (PDI) gene family. Developmentally, AGR2 is expressed in the mammary gland in an estrogen-dependent manner, and AGR2 knockout and overexpression mouse models indicate that the gene promotes lobuloalveolar development by stimulating cell proliferation. Although AGR2 overexpression alone seems insufficient for breast tumorigenesis in mice, several lines of investigations suggest that AGR2 promotes breast tumorigenesis. Overexpression of AGR2 in several breast cancer cell lines increases cell survival in clonogenic assays and cell proliferation, whereas AGR2 loss of function leads to decreased cell cycle progression and cell death. In addition, AGR2 was shown to promote metastasis of breast epithelial cells in an in vivo metastasis assay. As a PDI, AGR2 is thought to be involved in the unfolded protein response that alleviates endoplasmic reticulum stress. Since cancer has to overcome proteotoxic stress due to excess protein production, AGR2 may be one of many pro-survival factors recruited to assist in protein folding or degradation or both. When AGR2 is secreted, it plays a role in cellular adhesion and dissemination of metastatic tumor cells. In breast cancer, AGR2 expression is associated with estrogen receptor (ER)-positive tumors; its overexpression is a predictor of poor prognosis. The AGR2 gene is directly targeted by ER-alpha, which is preferentially bound in tumors with poor outcome. Whereas aromatase inhibitor therapy decreases AGR2 expression, tamoxifen acts as an agonist of AGR2 expression in ER-positive tumors, perhaps contributing to tamoxifen resistance. AGR2 is also overexpressed in a subset of ER-negative tumors. Furthermore, AGR2 expression is associated with the dissemination of metastatic breast cancer cells and can be used as a marker to identify circulating tumor cells and metastatic cells in sentinel lymph nodes. In conclusion, AGR2 is a promising drug target in breast cancer and may serve as a useful prognostic indicator as well as a marker of breast cancer metastasis.
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Dunbier AK, Ghazoui Z, Anderson H, Salter J, Nerurkar A, Osin P, A'hern R, Miller WR, Smith IE, Dowsett M. Molecular profiling of aromatase inhibitor-treated postmenopausal breast tumors identifies immune-related correlates of resistance. Clin Cancer Res 2013; 19:2775-86. [PMID: 23493347 DOI: 10.1158/1078-0432.ccr-12-1000] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
PURPOSE Estrogen withdrawal by treatment with aromatase inhibitors is the most effective form of endocrine therapy for postmenopausal estrogen receptor-positive (ER+) breast cancer. However, response to therapy varies markedly and understanding of the precise molecular effects of aromatase inhibitors and causes of resistance is limited. We aimed to identify in clinical breast cancer those genes and pathways most associated with resistance to aromatase inhibitors by examining the global transcriptional effects of AI treatment. EXPERIMENTAL DESIGN Baseline and 2-week posttreatment biopsies were obtained from 112 postmenopausal women with ER+ breast cancer receiving neoadjuvant anastrozole. Gene expression data were obtained from 81 baseline and 2-week paired samples. Pathway analysis identified (i) the most prevalent changes in expression and (ii) the pretreatment genes/pathways most related to poor antiproliferative response. RESULTS A total of 1,327 genes were differentially expressed after 2-week treatment (false discovery rate < 0.01). Proliferation-associated genes and classical estrogen-dependent genes were strongly downregulated whereas collagens and chemokines were upregulated. Pretreatment expression of an inflammatory signature correlated with antiproliferative response to anastrozole and this observation was validated in an independent study. Higher expression of immune-related genes such as SLAMF8 and TNF as well as lymphocytic infiltration were associated with poorer response (P < 0.001) and validated in an independent cohort. CONCLUSIONS The molecular response to aromatase inhibitor treatment varies greatly between patients consistent with the variable clinical benefit from aromatase inhibitor treatment. Higher baseline expression of an inflammatory signature is associated with poor antiproliferative response and should be assessed further as a novel biomarker and potential target for aromatase inhibitor-treated patients.
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Dubrovska A, Hartung A, Bouchez LC, Walker JR, Reddy VA, Cho CY, Schultz PG. CXCR4 activation maintains a stem cell population in tamoxifen-resistant breast cancer cells through AhR signalling. Br J Cancer 2012; 107:43-52. [PMID: 22644306 PMCID: PMC3389396 DOI: 10.1038/bjc.2012.105] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background: Tamoxifen is commonly used for breast cancer therapy. However, tamoxifen resistance is an important clinical problem. Continuous treatment with conventional therapy may contribute to cancer progression in recurring cancers through the accumulation of drug-resistant cancer progenitors. Methods: To investigate signalling mechanisms important for the maintenance and viability of drug-resistant cancer progenitors, we used microarray analysis, PCR array for genes involved in cancer drug resistance and metabolism, flow cytometry, soft agar colony formation assay, in vivo tumourigenicity assay and immunohistochemical analysis using tamoxifen-sensitive and tamoxifen-resistant breast cancer MCF7 cells. Results: Downregulation of CXCR4 signalling by small molecule antagonist AMD3100 specifically inhibits growth of progenitor cell population in MCF7(TAM-R) cells both in vitro and in vivo. Microarray analysis revealed aryl hydrocarbon receptor (AhR) signalling as one of the top networks that is differentially regulated in MCF7(TAM-R) and MCF7 xenograft tumours treated with AMD3100. Further, small molecule antagonists of AhR signalling specifically inhibit the progenitor population in MCF7(TAM-R) cells and growth of MCF7(TAM-R) xenografts in vivo. Conclusion: The chemokine receptor CXCR4 maintains a cancer progenitor population in tamoxifen-resistant MCF7 cells through AhR signalling and could be a putative target for the treatment of tamoxifen-resistant breast cancers.
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Affiliation(s)
- A Dubrovska
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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Weigel MT, Ghazoui Z, Dunbier A, Pancholi S, Dowsett M, Martin LA. Preclinical and clinical studies of estrogen deprivation support the PDGF/Abl pathway as a novel therapeutic target for overcoming endocrine resistance in breast cancer. Breast Cancer Res 2012; 14:R78. [PMID: 22608253 PMCID: PMC3446341 DOI: 10.1186/bcr3191] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 03/30/2012] [Accepted: 05/18/2012] [Indexed: 02/07/2023] Open
Abstract
Introduction The majority of breast tumors at primary diagnosis are estrogen receptor positive (ER+). Estrogen (E) mediates its effects by binding to the ER. Therapies targeting the estrogenic stimulation of tumor growth reduce mortality from ER+ breast cancer. However, resistance remains a major clinical problem. Methods To identify molecular mechanisms associated with resistance to E-deprivation, we assessed the temporal changes in global gene expression during adaptation to long-term culture of MCF7 human breast cancer cells in the absence of estradiol (E2), long term estrogen deprived (LTED), that leads to recovery of proliferative status and models resistance to an aromatase inhibitor (AI). The expression levels of proteins were determined by western blotting. Proliferation assays were carried out using the dual platelet derived growth factor receptor (PDGFR)/Abelson tyrosine kinase (Abl) inhibitor nilotinib. Luciferase reporter assays were used to determine effects on ER-mediated transactivation. Changes in recruitment of cofactors to the gene regulated by estrogen in breast cancer 1 (GREB1) promoter were determined by chromatin immunoprecipitation (ChIP). Gene expression data were derived from 81 postmenopausal women with ER+ BC pre-treatment and at two-weeks post-treatment with single agent anastrozole in a neoadjuvant trial. Results The PDGF/Abl canonical pathway was significantly elevated as early as one week post E-deprivation (P = 1.94 E-04) and this became the top adaptive pathway at the point of proliferative recovery (P = 1.15 E-07). Both PDGFRβ and Abl protein levels were elevated in the LTED cells compared to wild type (wt)-MCF7 cells. The PDGF/Abl tyrosine kinase inhibitor nilotinib, suppressed proliferation in LTED cells in the presence or absence of E. Nilotinib also suppressed ER-mediated transcription by destabilizing the ER and reducing recruitment of amplified in breast cancer-1 (AIB1) and the CREB binding protein (CBP) to the promoter of the E-responsive gene GREB1. High PDGFRβ in primary ER+ breast cancer of 81 patients prior to neoadjuvant treatment with an AI was associated with poorer antiproliferative response. Additionally PDGFRβ expression increased after two weeks of AI therapy (1.25 fold, P = 0.003). Conclusions These preclinical and clinical data indicate that the PDGF/Abl signaling pathway merits clinical evaluation as a therapeutic target with endocrine therapy in ER+ breast cancer.
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Affiliation(s)
- Marion T Weigel
- Breakthrough Breast Cancer Centre, Institute of Cancer Research, 237 Fulham Road, London SW3 6JJ, UK.
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Shibahara Y, Miki Y, Onodera Y, Hata S, Chan MSM, Yiu CCP, Loo TY, Nakamura Y, Akahira JI, Ishida T, Abe K, Hirakawa H, Chow LWC, Suzuki T, Ouchi N, Sasano H. Aromatase inhibitor treatment of breast cancer cells increases the expression of let-7f
, a microRNA targeting CYP19A1. J Pathol 2012; 227:357-66. [DOI: 10.1002/path.4019] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 02/07/2012] [Accepted: 02/21/2012] [Indexed: 12/11/2022]
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Kim KY, Cha IH. Possibility of the use of public microarray database for identifying significant genes associated with oral squamous cell carcinoma. Genomics Inform 2012; 10:23-32. [PMID: 23105925 PMCID: PMC3475481 DOI: 10.5808/gi.2012.10.1.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 02/16/2012] [Accepted: 02/18/2012] [Indexed: 11/20/2022] Open
Abstract
There are lots of studies attempting to identify the expression changes in oral squamous cell carcinoma. Most studies include insufficient samples to apply statistical methods for detecting significant gene sets. This study combined two small microarray datasets from a public database and identified significant genes associated with the progress of oral squamous cell carcinoma. There were different expression scales between the two datasets, even though these datasets were generated under the same platforms - Affymetrix U133A gene chips. We discretized gene expressions of the two datasets by adjusting the differences between the datasets for detecting the more reliable information. From the combination of the two datasets, we detected 51 significant genes that were upregulated in oral squamous cell carcinoma. Most of them were published in previous studies as cancer-related genes. From these selected genes, significant genetic pathways associated with expression changes were identified. By combining several datasets from the public database, sufficient samples can be obtained for detecting reliable information. Most of the selected genes were known as cancer-related genes, including oral squamous cell carcinoma. Several unknown genes can be biologically evaluated in further studies.
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Affiliation(s)
- Ki-Yeol Kim
- Oral Cancer Research Institute, College of Dentistry, Yonsei University, Seoul 120-752, Korea
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Gray TA, MacLaine NJ, Michie CO, Bouchalova P, Murray E, Howie J, Hrstka R, Maslon MM, Nenutil R, Vojtesek B, Langdon S, Hayward L, Gourley C, Hupp TR. Anterior Gradient-3: a novel biomarker for ovarian cancer that mediates cisplatin resistance in xenograft models. J Immunol Methods 2012; 378:20-32. [PMID: 22361111 DOI: 10.1016/j.jim.2012.01.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 09/02/2011] [Accepted: 01/27/2012] [Indexed: 10/28/2022]
Abstract
The Anterior Gradient (AGR) genes AGR2 and AGR3 are part of the Protein Disulfide Isomerase (PDI) family and harbour core thioredoxin folds (CxxS motifs) that have the potential to regulate protein folding and maturation. A number of proteomics and transcriptomics screens in the fields of limb regeneration, cancer cell metastasis, pro-oncogenic oestrogen-signalling, and p53 regulation have identified AGR2 as a novel component of these signalling pathways. Curiously, despite the fact that the AGR2 and AGR3 genes are contiguous on chromosome 7p21.1-3, the AGR3 protein has rarely been identified in such OMICs screens along with AGR2 protein. Therefore there is little information on how AGR3 protein is expressed in normal and diseased states. A panel of three monoclonal antibodies was generated towards AGR3 protein for identifying novel clinical models that can be used to define whether AGR3 protein could play a positive or negative role in human cancer development. One monoclonal antibody was AGR3-specific and bound a linear epitope that could be defined using both pep-scan and phage-peptide library screening. Using this monoclonal antibody, endogenous AGR3 protein expression was shown to be cytosolic in four human ovarian cancer subtypes; serous, endometrioid, clear cell, and mucinous. Mucinous ovarian cancers produced the highest number of AGR3 positive cells. AGR3 expression is coupled to AGR2 expression only in mucinous ovarian cancers, whereas AGR3 and AGR2 expressions are uncoupled in the other three types of ovarian cancer. AGR3 expression in ovarian cancer is independent of oestrogen-receptor expression, which is distinct from the oestrogen-receptor dependent expression of AGR3 in breast cancers. Isogenic cancer cell models were created that over-express AGR3 and these demonstrated that AGR3 mediates cisplatin-resistance in mouse xenografts. These data indicate that AGR3 is over-expressed by a hormone (oestrogen-receptor α)-independent mechanism and identify a novel protein-folding associated pathway that could mediate resistance to DNA-damaging agents in human cancers.
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Affiliation(s)
- Terry A Gray
- p53 Signal Transduction Group, Edinburgh Cancer Research Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XR, Scotland, UK
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Miller WR, Larionov AA. Understanding the mechanisms of aromatase inhibitor resistance. Breast Cancer Res 2012; 14:201. [PMID: 22277572 PMCID: PMC3496110 DOI: 10.1186/bcr2931] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aromatase inhibitors (AIs) have a central role in the treatment of breast cancer; however, resistance is a major obstacle to optimal management. Evidence from endocrine, molecular and pathological measurements in clinical material taken before and after therapy with AIs and data from clinical trials in which AIs have been given as treatment either alone or in combination with other targeted agents suggest diverse causes for resistance. These include inherent tumour insensitivity to oestrogen, ineffective inhibition of aromatase, sources of oestrogenic hormones independent of aromatase, activation of signalling by non-endocrine pathways, enhanced cell survival and selection of hormone-insensitive cellular clones during treatment.
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Clarke DJ, Murray E, Hupp T, Mackay CL, Langridge-Smith PRR. Mapping a noncovalent protein-peptide interface by top-down FTICR mass spectrometry using electron capture dissociation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:1432-40. [PMID: 21953198 DOI: 10.1007/s13361-011-0155-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 04/13/2011] [Accepted: 04/15/2011] [Indexed: 05/11/2023]
Abstract
Noncovalent protein-ligand and protein-protein complexes are readily detected using electrospray ionization mass spectrometry (ESI MS). Furthermore, recent reports have demonstrated that careful use of electron capture dissociation (ECD) fragmentation allows covalent backbone bonds of protein complexes to be dissociated without disruption of noncovalent protein-ligand interactions. In this way the site of protein-ligand interfaces can be identified. To date, protein-ligand complexes, which have proven tractable to this technique, have been mediated by ionic electrostatic interactions, i.e., ion pair interactions or salt bridging. Here we extend this methodology by applying ECD to study a protein-peptide complex that contains no electrostatics interactions. We analyzed the complex between the 21 kDa p53-inhibitor protein anterior gradient-2 and its hexapeptide binding ligand (PTTIYY). ECD fragmentation of the 1:1 complex occurs with retention of protein-peptide binding and analysis of the resulting fragments allows the binding interface to be localized to a C-terminal region between residues 109 and 175. These finding are supported by a solution-phase competition assay, which implicates the region between residues 108 and 122 within AGR2 as the PTTIYY binding interface. Our study expands previous findings by demonstrating that top-down ECD mass spectrometry can be used to determine directly the sites of peptide-protein interfaces. This highlights the growing potential of using ECD and related top-down fragmentation techniques for interrogation of protein-protein interfaces.
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Affiliation(s)
- David J Clarke
- SIRCAMS, EastChem School of Chemistry, University of Edinburgh, Edinburgh, UK
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Miller WR, Larionov A. Molecular effects of oestrogen deprivation in breast cancer. Mol Cell Endocrinol 2011; 340:127-36. [PMID: 21605624 DOI: 10.1016/j.mce.2011.04.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 04/26/2011] [Accepted: 04/26/2011] [Indexed: 01/05/2023]
Abstract
This paper reviews the effects of oestrogen deprivation by third generation aromatase inhibitors on molecular profiles in breast cancers. It particularly focuses on results obtained as a result of pre-operative and neoadjuvant therapy in which primary breast cancers have been biopsied or excised before and during treatment with letrozole, anastrozole or exemestane. Studies may be subdivided into those evaluating early (10-14 days) or late (3-4 months) changes; a single investigation charted sequential changes. Early changes involved downregulation of genes classically induced by oestrogen or associated with cell cycle and proliferation. In contrast, expressions of genes associated with stromal signatures were upregulated. Considerably more genes were changed at later time-points; these probably represent not only primary effects on cellular expression but secondary consequences of cell death and clonal selection. Thus, after 3-4 months of treatment mitochondrial-related genes and those associated with cell cycle and cell division were downregulated whereas genes associated with extracellular matrix (ECM) remodelling, vascularization, inflammatory responses and cell adhesion were upregulated. Recently, observations have been reported from a study in which tumours were sequentially sampled to include pretreatment and both early and later time-points. This allowed direct monitoring of the dynamic changes in gene expression. Different patterns of changes in gene expression were identified which were also associated with general differences in sub-cellular distribution of corresponding proteins. The effect of treatment on expression of specific genes and processes such as aromatase, oestrogen receptor (ER), oestrogen-regulated genes, HER2, p53, ribosomal proteins, markers of proliferation, oxidative phosphorylation and stromal response are summarized.
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Affiliation(s)
- William R Miller
- Breast Research Group, University of Edinburgh, Western General Hospital, Edinburgh, United Kingdom.
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