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Ijaz S, Iqbal J, Abbasi BA, Tufail A, Yaseen T, Uddin S, Usman K, Ullah R, Bibi H, Inam P, Sagindykova E, Gürer ES, Habtemariam S, Calina D, Sharifi-Rad J. Current stage of preclinical and clinical development of guggulsterone in cancers: Challenges and promises. Cell Biol Int 2024; 48:128-142. [PMID: 38148708 DOI: 10.1002/cbin.12112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/28/2023] [Accepted: 11/18/2023] [Indexed: 12/28/2023]
Abstract
Throughout human history, the utilization of medicinal herbs has been recognized as a crucial defense against various ailments, including cancer. Natural products with potential anticancer properties, capable of inducing apoptosis in cancer cells, have garnered substantial attention. One such agent under investigation is guggulsterone (GS), a phytosterol derived from the gum resin of the Commiphora mukul tree. This review aims to provide a comprehensive summary of recent studies elucidating the anticancer molecular mechanisms and molecular targets of GS, guiding future research and potential applications as an adjuvant drug in cancer therapy. Recent in vivo and in vitro studies have explored the biological activities of the active ingredients in Commiphora mukul. Specifically, GS emerges as a potential cancer chemopreventive and therapeutic agent. The investigations delve into the impact of GS on constitutively activated survival pathways, including Janus kinase/signal transducer and activator of transcription (JAK/STAT), nuclear factor-kappa B (NF-kB), and PI3-kinase/AKT signaling pathways. These pathways regulate antiapoptotic and proinflammatory genes, exerting control over growth and inflammatory responses. The findings highlight the potential of GS in disrupting survival pathways crucial for cancer cell viability. The inhibition of JAK/STAT, NF-kB, and PI3-kinase/AKT signaling pathways positions GS as a promising candidate for cancer therapy. The review synthesizes evidence from diverse studies, underscoring the multifaceted biological activities of GS in cancer prevention and treatment. To advance our understanding, future clinical and translational studies are imperative to determine effective doses in humans. Additionally, there is a need for the development of new pharmaceutical forms of GS to optimize therapeutic effects. This comprehensive review provides a foundation for ongoing research, offering insights into the potential of GS as a valuable addition to the armamentarium against cancer.
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Affiliation(s)
- Shumaila Ijaz
- Division of Science and Technology, Department of Botany, University of Education, Lahore, Punjab, Pakistan
| | - Javed Iqbal
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | | | - Aasma Tufail
- Division of Science and Technology, Department of Botany, University of Education, Lahore, Punjab, Pakistan
| | - Tabassum Yaseen
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Siraj Uddin
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
| | - Kiran Usman
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Rafi Ullah
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Haseena Bibi
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Palwasha Inam
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Elvira Sagindykova
- Faculty of Science and Technology, The Caspian University of Technology and Engineering Named after Sh.Yessenov, Aktau, Kazakhstan
| | - Eda Sönmez Gürer
- Department of Pharmacognosy, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas, Turkey
| | - Solomon Habtemariam
- Pharmacognosy Research & Herbal Analysis Services UK, University of Greenwich, Kent, UK
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, Craiova, Romania
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Zougros A, Michelli M, Chatziandreou I, Nonni A, Gakiopoulou H, Michalopoulos NV, Lazaris AC, Saetta AA. mRNA coexpression patterns of Wnt pathway components and their clinicopathological associations in breast and colorectal cancer. Pathol Res Pract 2021; 227:153649. [PMID: 34656913 DOI: 10.1016/j.prp.2021.153649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/24/2022]
Abstract
Aberrant Wnt signaling is implicated in carcinogenesis triggering efforts for the development of new therapeutic agents, many of which have entered clinical trials. We extend our previous analysis of WNT3, FZD7, LEF1 expression levels in breast and colorectal cancer including WNT2, FZD4 and β-catenin expression, in an effort to delineate their relative expression levels along with concurrent expression patterns and possible prognostic value. We analyzed 82 breast and 102 colorectal carcinomas for relative mRNA expression levels of the investigated genes by RT-PCR relative quantification with the ΔΔCt method. Statistical analysis was performed in order to determine associations of relative mRNA expression and linear correlations. β-catenin expression was determined by immunochemistry. Regarding breast carcinomas, decreased relative mRNA expression levels of WNT2, FZD4 were found frequently and WNT2 expression was correlated with ER/ PR status (p = 0.045/p = 0.028), whereas β-catenin with grade (p = 0.026). In colorectal carcinomas, increased relative mRNA expression levels of WNT2 and FZD4 were found in 59% and 32% of cases respectively, whereas β-catenin showed decreased mRNA expression levels in 57% of cases and a correlation with pN-category (p = 0.037). Linear correlations were observed between WNT2/FZD4 (R=0.542, p < 0.001), WNT2/β-catenin (R=0.254, p = 0.010), FZD4/β-catenin (R=0.406, p < 0.001) expression and a correlation between mRNA expression and membranous/cytoplasmic β-catenin emerged (p = 0.039/0.046). Our results suggest a possible clinical significance for Wnt pathway gene expression levels in both tumour types. The concurrent expression of the investigated genes as well as the different expression profiles, underlines the complexity of this pathway and the necessity of patient selection in order to maximize the efficacy of drugs targeting Wnt pathway.
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Affiliation(s)
- Alexandros Zougros
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Goudi, Athens, Greece
| | - Maria Michelli
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Goudi, Athens, Greece
| | - Ilenia Chatziandreou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Goudi, Athens, Greece
| | - Afroditi Nonni
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Goudi, Athens, Greece
| | - Harikleia Gakiopoulou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Goudi, Athens, Greece
| | - Nikolaos V Michalopoulos
- Fourth Department of Surgery, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, Rimini 1, Haidari, Athens, Greece
| | - Andreas C Lazaris
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Goudi, Athens, Greece
| | - Angelica A Saetta
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Goudi, Athens, Greece.
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Farghadani R, Naidu R. Curcumin: Modulator of Key Molecular Signaling Pathways in Hormone-Independent Breast Cancer. Cancers (Basel) 2021; 13:cancers13143427. [PMID: 34298639 PMCID: PMC8307022 DOI: 10.3390/cancers13143427] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/27/2021] [Accepted: 06/30/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Breast cancer remains the most commonly diagnosed cancer and the leading cause of cancer death among females worldwide. It is a highly heterogeneous disease, classified according to hormone and growth factor receptor expression. Patients with triple negative breast cancer (TNBC) (estrogen receptor-negative/progesterone receptor-negative/human epidermal growth factor receptor (HER2)-negative) and hormone-independent HER2 overexpressing subtypes still represent highly aggressive behavior, metastasis, poor prognosis, and drug resistance. Thus, new alternative anticancer agents based on the use of natural products have been receiving enormous attention. In this regard, curcumin is a promising lead in cancer drug discovery due its ability to modulate a diverse range of molecular targets and signaling pathways. The current review has emphasized the underlying mechanism of curcumin anticancer action mediated through the modulation of PI3K/Akt/mTOR, JAK/STAT, MAPK, NF-ĸB, p53, Wnt/β-catenin, apoptosis, and cell cycle pathways in hormone-independent breast cancer, providing frameworks for future studies and insights to improve its efficiency in clinical practice. Abstract Breast cancer is the most frequently diagnosed cancer and the leading cause of cancer death among women worldwide. Despite the overall successes in breast cancer therapy, hormone-independent HER2 negative breast cancer, also known as triple negative breast cancer (TNBC), lacking estrogens and progesterone receptors and with an excessive expression of human epidermal growth factor receptor 2 (HER2), along with the hormone-independent HER2 positive subtype, still remain major challenges in breast cancer treatment. Due to their poor prognoses, aggressive phenotype, and highly metastasis features, new alternative therapies have become an urgent clinical need. One of the most noteworthy phytochemicals, curcumin, has attracted enormous attention as a promising drug candidate in breast cancer prevention and treatment due to its multi-targeting effect. Curcumin interrupts major stages of tumorigenesis including cell proliferation, survival, angiogenesis, and metastasis in hormone-independent breast cancer through the modulation of multiple signaling pathways. The current review has highlighted the anticancer activity of curcumin in hormone-independent breast cancer via focusing on its impact on key signaling pathways including the PI3K/Akt/mTOR pathway, JAK/STAT pathway, MAPK pathway, NF-ĸB pathway, p53 pathway, and Wnt/β-catenin, as well as apoptotic and cell cycle pathways. Besides, its therapeutic implications in clinical trials are here presented.
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Remo A, Sina S, Barbi S, Simeone I, Insolda J, Parcesepe P, Giordano G, Cerulo L, Ceccarelli M, Fiorica F, Bonetti A, Pancione M, Manfrin E. Wnt (canonical and non canonical) pathways in breast carcinoma with extensive vascular invasion and inflammatory breast carcinoma. Pathol Res Pract 2021; 219:153347. [PMID: 33550148 DOI: 10.1016/j.prp.2021.153347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/12/2021] [Accepted: 01/15/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Breast carcinoma with extensive peritumoral vascular invasion (ePVI-BC) is a cancer with massive vascular invasion (>10) detected in more than one slide. This neoplasm shows clinic-pathological affinity with inflammatory breast carcinoma (IBC). In this paper we evaluate their biological relationship through the study of surrogate markers (β-catenin and NFAT5) of Canonical (cWnt) and non-canonical (nWnt) Wnt pathways activation. METHODS By immunoistochemistry, we investigate β-catenin and NFAT5 in 39 IBC, 74 ePVI-BC and 84 control cases (CG-BC). RESULTS cWnt was activated in 100 % of ePVI-BC, in 64 % of IBC and 10 % of CG-BC. nWnt was activated in 20 % of ePVI-BC, 50 % of IBC and 1% of CG-BC. The prognosis of carcinomas with nWnt activated was poor similar to IBC. The statistical analysis evidences as both the pathways are synergistic in malignant progression and survival time. β-catenin show an important association with prognostic factors and NFAT5 shows a relevant prognostic role on OS (p = 1.5*10-6) and DFS (P = 1,2*10-4). nWnt is associated with a worse prognosis independently of cWnt. cWnt is associated with adverse prognosis (DFS p = 0.0469; OS p = 0.004891) but its prognostic role is indifferent in carcinoma with nWnt activated. CONCLUSIONS Canonical Wnt pathway is involved in malignant progression with dominant role for vascular invasion whereas non canonical Wnt pathway plays an important role on survival time including the capacity to identify carcinomas with IBC-like prognosis. Furthermore ePVI may represent a "prodromal form of IBC" as demonstrated by its clinicopathological and biological similarity with IBC.
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Affiliation(s)
- A Remo
- Pathology Unit, ULSS9 "Scaligera" and Breast Unit (Eusoma's Certification n°1030/00), Verona, Italy.
| | - S Sina
- Pathology Unit, ULSS9 "Scaligera" and Breast Unit (Eusoma's Certification n°1030/00), Verona, Italy
| | - S Barbi
- Department of Pathology and Diagnosis, University of Verona, Verona, Italy
| | - I Simeone
- Center for Genomic Science of IIT@SEMM - Istituto Italiano di Tecnologia, Milan, Italy; Department of Science and Technology, University of Sannio, Benevento, Italy
| | - J Insolda
- Pathology Unit, ULSS9 "Scaligera" and Breast Unit (Eusoma's Certification n°1030/00), Verona, Italy
| | - P Parcesepe
- Department of Pathology and Diagnosis, University of Verona, Verona, Italy
| | - G Giordano
- U.O.C. Oncologia Medica, Ospedali Riuniti Azienda Ospedaliera Universitaria, 71122, Foggia, Italy
| | - L Cerulo
- Department of Science and Technology, University of Sannio, Benevento, Italy; Bioinformatics Laboratory, BIOGEM, Ariano Irpino, Avellino, Italy
| | - M Ceccarelli
- Department of Science and Technology, University of Sannio, Benevento, Italy; Bioinformatics Laboratory, BIOGEM, Ariano Irpino, Avellino, Italy
| | - F Fiorica
- Radiotherapy Unit, ULSS9 "Scaligera"and Breast Unit (Eusoma's Certification n°1030/00), Verona, Italy
| | - A Bonetti
- Oncology Unit, ULSS9 "Scaligera"and Breast Unit (Eusoma's Certification n°1030/00), Verona, Italy
| | - M Pancione
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - E Manfrin
- Department of Pathology and Diagnosis, University of Verona, Verona, Italy.
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Reyes M, Flores T, Betancur D, Peña-Oyarzún D, Torres VA. Wnt/β-Catenin Signaling in Oral Carcinogenesis. Int J Mol Sci 2020; 21:ijms21134682. [PMID: 32630122 PMCID: PMC7369957 DOI: 10.3390/ijms21134682] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/23/2020] [Accepted: 06/28/2020] [Indexed: 12/15/2022] Open
Abstract
Oral carcinogenesis is a complex and multifactorial process that involves cumulative genetic and molecular alterations, leading to uncontrolled cell proliferation, impaired DNA repair and defective cell death. At the early stages, the onset of potentially malignant lesions in the oral mucosa, or oral dysplasia, is associated with higher rates of malignant progression towards carcinoma in situ and invasive carcinoma. Efforts have been made to get insights about signaling pathways that are deregulated in oral dysplasia, as these could be translated into novel markers and might represent promising therapeutic targets. In this context, recent evidence underscored the relevance of the Wnt/β-catenin signaling pathway in oral dysplasia, as this pathway is progressively "switched on" through the different grades of dysplasia (mild, moderate and severe dysplasia), with the consequent nuclear translocation of β-catenin and expression of target genes associated with the maintenance of representative traits of oral dysplasia, namely cell proliferation and viability. Intriguingly, recent studies provide an unanticipated connection between active β-catenin signaling and deregulated endosome trafficking in oral dysplasia, highlighting the relevance of endocytic components in oral carcinogenesis. This review summarizes evidence about the role of the Wnt/β-catenin signaling pathway and the underlying mechanisms that account for its aberrant activation in oral carcinogenesis.
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Affiliation(s)
- Montserrat Reyes
- Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Santiago 8380453, Chile; (T.F.); (D.B.)
- Correspondence: (M.R.); (V.A.T.)
| | - Tania Flores
- Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Santiago 8380453, Chile; (T.F.); (D.B.)
- Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380453, Chile;
- Research Centre in Dental Science (CICO), Faculty of Dentistry, Universidad de La Frontera, Temuco 4780000, Chile
| | - Diego Betancur
- Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Santiago 8380453, Chile; (T.F.); (D.B.)
- Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380453, Chile;
| | - Daniel Peña-Oyarzún
- Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380453, Chile;
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago 8380453, Chile
| | - Vicente A. Torres
- Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380453, Chile;
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago 8380453, Chile
- Correspondence: (M.R.); (V.A.T.)
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High Proportion of Potential Candidates for Immunotherapy in a Chilean Cohort of Gastric Cancer Patients: Results of the FORCE1 Study. Cancers (Basel) 2019; 11:cancers11091275. [PMID: 31480291 PMCID: PMC6770659 DOI: 10.3390/cancers11091275] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/21/2019] [Accepted: 08/28/2019] [Indexed: 12/13/2022] Open
Abstract
Gastric cancer (GC) is a heterogeneous disease. This heterogeneity applies not only to morphological and phenotypic features but also to geographical variations in incidence and mortality rates. As Chile has one of the highest mortality rates within South America, we sought to define a molecular profile of Chilean GCs (ClinicalTrials.gov identifier: NCT03158571/(FORCE1)). Solid tumor samples and clinical data were obtained from 224 patients, with subsets analyzed by tissue microarray (TMA; n = 90) and next generation sequencing (NGS; n = 101). Most demographic and clinical data were in line with previous reports. TMA data indicated that 60% of patients displayed potentially actionable alterations. Furthermore, 20.5% were categorized as having a high tumor mutational burden, and 13% possessed micro-satellite instability (MSI). Results also confirmed previous studies reporting high Epstein-Barr virus (EBV) positivity (13%) in Chilean-derived GC samples suggesting a high proportion of patients could benefit from immunotherapy. As expected, TP53 and PIK3CA were the most frequently altered genes. However, NGS demonstrated the presence of TP53, NRAS, and BRAF variants previously unreported in current GC databases. Finally, using the Kendall method, we report a significant correlation between EBV+ status and programmed death ligand-1 (PDL1)+ and an inverse correlation between p53 mutational status and MSI. Our results suggest that in this Chilean cohort, a high proportion of patients are potential candidates for immunotherapy treatment. To the best of our knowledge, this study is the first in South America to assess the prevalence of actionable targets and to examine a molecular profile of GC patients.
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Khan Z, Arafah M, Shaik JP, Mahale A, Alanazi MS. High-frequency deregulated expression of Wnt signaling pathway members in breast carcinomas. Onco Targets Ther 2018; 11:323-335. [PMID: 29391809 PMCID: PMC5769582 DOI: 10.2147/ott.s154395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Purpose Breast carcinoma is the most common malignancy and leading cause of cancer-related deaths in women worldwide including Saudi Arabia. Breast cancer in Saudi women develops at a much early age with median age of onset of 49 years compared to 62 years observed in patients from USA. Aberrations in wingless and integration site growth factor (Wnt) signaling pathway have been pathologically implicated in development of breast cancers and hence its role was examined in Saudi patients. Materials and methods We immunohistochemically examined various components of Wnt signaling pathway including β-catenin, tumor suppressor proteins, adenomatous polyposis coli (APC), and Axin, expression of naturally occurring pathway antagonists such as Dickkopf Wnt signaling pathway inhibitor 3 (DKK3), FRP2, and WIF1, as well as Wnt target cyclin D1 and c-Myc to establish if the pathway is constitutively activated in breast cancers arising in Saudi women. Results Cytoplasmic β-catenin, indicative of activation of the pathway, was observed in 24% of cases. Expression of APC and Axin, which are components of β-catenin destruction complex, was lost in 5% and 10% of tumors, respectively. Additionally, Wnt signaling inhibitors DKK3, FRP2, and Wnt inhibitory factor 1 (WIF1) were not expressed in 8%, 14%, and 5% breast tumors, respectively. Overall, accumulation of cytoplasmic β-catenin and downregulation of other Wnt pathway proteins (APC/Axin/DKK3/FRP2/WIF1) were found in approximately half of the breast cancers (47%) in our cohort. Consistent with this, analysis of Wnt target genes demonstrated moderate-to-strong expression of c-Myc in 58% and cyclin D1 in 50% of breast cancers. Deregulation of Wnt pathway was not associated with age of onset of the disease, tumor grade, and triple-negative status of breast cancers. Conclusions High level of deregulated expression of Wnt pathway proteins suggests its important role in pathogenesis of breast cancers arising in Saudi women who may benefit from development of therapeutic drugs targeting this pathway.
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Affiliation(s)
- Zahid Khan
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, Riyadh
| | - Maha Arafah
- Department of Pathology, College of Medicine, King Saud University, Riyadh
| | | | - Alka Mahale
- King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Mohammad Saud Alanazi
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, Riyadh
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Monastyrskyi A, Nilchan N, Quereda V, Noguchi Y, Ruiz C, Grant W, Cameron M, Duckett D, Roush W. Development of dual casein kinase 1δ/1ε (CK1δ/ε) inhibitors for treatment of breast cancer. Bioorg Med Chem 2017; 26:590-602. [PMID: 29289448 DOI: 10.1016/j.bmc.2017.12.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/09/2017] [Accepted: 12/14/2017] [Indexed: 12/14/2022]
Abstract
Casein kinase 1δ/ε have been identified as promising therapeutic target for oncology application, including breast and brain cancer. Here, we described our continued efforts in optimization of a lead series of purine scaffold inhibitors that led to identification of two new CK1δ/ε inhibitors 17 and 28 displaying low nanomolar values in antiproliferative assays against the human MDA-MB-231 triple negative breast cancer cell line and have physical, in vitro and in vivo pharmacokinetic properties suitable for use in proof of principle animal xenograft studies against human cancers.
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Affiliation(s)
- Andrii Monastyrskyi
- Department of Chemistry, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - Napon Nilchan
- Department of Chemistry, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - Victor Quereda
- Department of Molecular Medicine, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - Yoshihiko Noguchi
- Department of Chemistry, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - Claudia Ruiz
- Department of Molecular Medicine, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - Wayne Grant
- Department of Molecular Medicine, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - Michael Cameron
- Department of Molecular Medicine, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - Derek Duckett
- Department of Molecular Medicine, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States
| | - William Roush
- Department of Chemistry, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, United States.
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Leung EY, Askarian-Amiri ME, Sarkar D, Ferraro-Peyret C, Joseph WR, Finlay GJ, Baguley BC. Endocrine Therapy of Estrogen Receptor-Positive Breast Cancer Cells: Early Differential Effects on Stem Cell Markers. Front Oncol 2017; 7:184. [PMID: 28929082 PMCID: PMC5591432 DOI: 10.3389/fonc.2017.00184] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 08/08/2017] [Indexed: 01/13/2023] Open
Abstract
Introduction Endocrine therapy of breast cancer, which either deprives cancer tissue of estrogen or prevents estrogen pathway signaling, is the most common treatment after surgery and radiotherapy. We have previously shown for the estrogen-responsive MCF-7 cell line that exposure to tamoxifen, or deprivation of estrogen, leads initially to inhibition of cell proliferation, followed after several months by the emergence of resistant sub-lines that are phenotypically different from the parental line. We examined the early responses of MCF-7 cells following either exposure to 4-hydroxytamoxifen or deprivation of estrogen for periods of 2 days–4 weeks. Methods Endocrine-sensitive or -resistant breast cancer cell lines were used to examine the expression of the stem cell gene SOX2, and the Wnt effector genes AXIN2 and DKK1 using quantitative PCR analysis. Breast cancer cell lines were used to assess the anti-proliferative effects (as determined by IC50 values) of Wnt pathway inhibitors LGK974 and IWP-2. Results Hormone therapy led to time-dependent increases of up to 10-fold in SOX2 expression, up to threefold in expression of the Wnt target genes AXIN2 and DKK1, and variable changes in NANOG and OCT4 expression. The cells also showed increased mammosphere formation and increased CD24 surface protein expression. Some but not all hormone-resistant MCF-7 sub-lines, emerging after long-term hormonal stress, showed up to 50-fold increases in SOX2 expression and smaller increases in AXIN2 and DKK1 expression. However, the increase in Wnt target gene expression was not accompanied by an increase in sensitivity to Wnt pathway inhibitors LGK974 and IWP-2. A general trend of lower IC50 values was observed in 3-dimensional spheroid culture conditions (which allowed enrichment of cells with cancer stem cell phenotype) relative to monolayer cultures. The endocrine-resistant cell lines showed no significant increase in sensitivity to Wnt inhibitors. Conclusion Hormone treatment of cultured MCF-7 cells leads within 2 days to increased expression of components of the SOX2 and Wnt pathways and to increased potential for mammosphere formation. We suggest that these responses are indicative of early adaptation to endocrine stress with features of stem cell character and that this facilitates the survival of emerging hormone-resistant cell populations.
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Affiliation(s)
- Euphemia Y Leung
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand.,Molecular Medicine and Pathology Department, University of Auckland, Auckland, New Zealand
| | - Marjan E Askarian-Amiri
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand.,Molecular Medicine and Pathology Department, University of Auckland, Auckland, New Zealand
| | - Debina Sarkar
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand.,Molecular Medicine and Pathology Department, University of Auckland, Auckland, New Zealand
| | - Carole Ferraro-Peyret
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand.,Cancer Research Center of Lyon, INSERM 1052, CNRS5286, Lyon, France.,Faculty of Pharmacy, University of Lyon, Claude Bernard Lyon 1 University, Lyon, France.,Molecular Biology of Tumors, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Wayne R Joseph
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand
| | - Graeme J Finlay
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand.,Molecular Medicine and Pathology Department, University of Auckland, Auckland, New Zealand
| | - Bruce C Baguley
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand
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Casado-Díaz A, Anter J, Müller S, Winter P, Quesada-Gómez JM, Dorado G. Transcriptomic analyses of the anti-adipogenic effects of oleuropein in human mesenchymal stem cells. Food Funct 2017; 8:1254-1270. [PMID: 28243663 DOI: 10.1039/c7fo00045f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Extra virgin olive oil has positive effects on health. Oleuropein is a polyphenolic compound present in olive-tree leaves, fruits (olives) and olive oil. It is responsible for the relevant organoleptic and biological properties of olive oil, including antiadipogenic properties. Thus, the effects of oleuropein on the adipogenesis of human bone-marrow mesenchymal stem cells were studied by transcriptomics and differential gene-expression analyses. Oleuropein could upregulate expression of 60% of adipogenesis-repressed genes. Besides, it could activate signaling pathways such as Rho and β-catenin, maintaining cells at an undifferentiated stage. Our data suggest that mitochondrial activity is reduced by oleuropein, mostly during adipogenic differentiation. These results shed light on oleuropein activity on cells, with potential application as a "nutraceutical" for the prevention and treatment of diseases such as obesity and osteoporosis.
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Affiliation(s)
- Antonio Casado-Díaz
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Avda. Menéndez Pidal s/n, 14004 Córdoba, Spain. and CIBER de Fragilidad y Envejecimiento Saludable, Spain
| | - Jaouad Anter
- Dep. Genética, Universidad de Córdoba, Campus Rabanales C5-1-O1, 14071 Córdoba, Spain
| | - Sören Müller
- GenXPro, Altenhoferallee 3, 60438 Frankfurt Main, Germany
| | - Peter Winter
- GenXPro, Altenhoferallee 3, 60438 Frankfurt Main, Germany
| | - José Manuel Quesada-Gómez
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Avda. Menéndez Pidal s/n, 14004 Córdoba, Spain. and CIBER de Fragilidad y Envejecimiento Saludable, Spain
| | - Gabriel Dorado
- Dep. Bioquímica y Biología Molecular, Campus Rabanales C6-1-E17, Campus de Excelencia Internacional Agroalimentario (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain and CIBER de Fragilidad y Envejecimiento Saludable, Spain
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11
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HER2 in Breast Cancer Stemness: A Negative Feedback Loop towards Trastuzumab Resistance. Cancers (Basel) 2017; 9:cancers9050040. [PMID: 28445439 PMCID: PMC5447950 DOI: 10.3390/cancers9050040] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/10/2017] [Accepted: 04/21/2017] [Indexed: 12/19/2022] Open
Abstract
HER2 receptor tyrosine kinase that is overexpressed in approximately 20% of all breast cancers (BCs) is a poor prognosis factor and a precious target for BC therapy. Trastuzumab is approved by FDA to specifically target HER2 for treating HER2+ BC. However, about 60% of patients with HER2+ breast tumor develop de novo resistance to trastuzumab, partially due to the loss of expression of HER2 extracellular domain on their tumor cells. This is due to shedding/cleavage of HER2 by metalloproteinases (ADAMs and MMPs). HER2 shedding results in the accumulation of intracellular carboxyl-terminal HER2 (p95HER2), which is a common phenomenon in trastuzumab-resistant tumors and is suggested as a predictive marker for trastuzumab resistance. Up-regulation of the metalloproteinases is a poor prognosis factor and is commonly seen in mesenchymal-like cancer stem cells that are risen during epithelial to mesenchymal transition (EMT) of tumor cells. HER2 cleavage during EMT can explain why secondary metastatic tumors with high percentage of mesenchymal-like cancer stem cells are mostly resistant to trastuzumab but still sensitive to lapatinib. Importantly, many studies report HER2 interaction with oncogenic/stemness signaling pathways including TGF-β/Smad, Wnt/β-catenin, Notch, JAK/STAT and Hedgehog. HER2 overexpression promotes EMT and the emergence of cancer stem cell properties in BC. Increased expression and activation of metalloproteinases during EMT leads to proteolytic cleavage and shedding of HER2 receptor, which downregulates HER2 extracellular domain and eventually increases trastuzumab resistance. Here, we review the hypothesis that a negative feedback loop between HER2 and stemness signaling drives resistance of BC to trastuzumab.
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Daly CS, Shaw P, Ordonez LD, Williams GT, Quist J, Grigoriadis A, Van Es JH, Clevers H, Clarke AR, Reed KR. Functional redundancy between Apc and Apc2 regulates tissue homeostasis and prevents tumorigenesis in murine mammary epithelium. Oncogene 2017; 36:1793-1803. [PMID: 27694902 PMCID: PMC5219933 DOI: 10.1038/onc.2016.342] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 08/02/2016] [Accepted: 08/05/2016] [Indexed: 02/08/2023]
Abstract
Aberrant Wnt signaling within breast cancer is associated with poor prognosis, but regulation of this pathway in breast tissue remains poorly understood and the consequences of immediate or long-term dysregulation remain elusive. The exact contribution of the Wnt-regulating proteins adenomatous polyposis coli (APC) and APC2 in the pathogenesis of human breast cancer are ill-defined, but our analysis of publically available array data sets indicates that tumors with concomitant low expression of both proteins occurs more frequently in the 'triple negative' phenotype, which is a subtype of breast cancer with particularly poor prognosis. We have used mouse transgenics to delete Apc and/or Apc2 from mouse mammary epithelium to elucidate the significance of these proteins in mammary homeostasis and delineate their influences on Wnt signaling and tumorigenesis. Loss of either protein alone failed to affect Wnt signaling levels or tissue homeostasis. Strikingly, concomitant loss led to local disruption of β-catenin status, disruption in epithelial integrity, cohesion and polarity, increased cell division and a distinctive form of ductal hyperplasia with 'squamoid' ghost cell nodules in young animals. Upon aging, the development of Wnt activated mammary carcinomas with squamous differentiation was accompanied by a significantly reduced survival. This novel Wnt-driven mammary tumor model highlights the importance of functional redundancies existing between the Apc proteins both in normal homeostasis and in tumorigenesis.
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Affiliation(s)
- C S Daly
- European Cancer Stem Cell Research Institute, Cardiff University School of Biosciences, Cardiff, Wales, UK
| | - P Shaw
- European Cancer Stem Cell Research Institute, Cardiff University School of Biosciences, Cardiff, Wales, UK
| | - L D Ordonez
- European Cancer Stem Cell Research Institute, Cardiff University School of Biosciences, Cardiff, Wales, UK
| | - G T Williams
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, UK
| | - J Quist
- Breast Cancer Now Unit, King's College London, Guy's Hospital London, London, UK
- Cancer Bioinformatics, King's College London, Guy's Hospital London, London, UK
| | - A Grigoriadis
- Breast Cancer Now Unit, King's College London, Guy's Hospital London, London, UK
- Cancer Bioinformatics, King's College London, Guy's Hospital London, London, UK
| | - J H Van Es
- Hubrecht Laboratory, Netherlands Institute for Developmental Biology, Utrecht, The Netherlands
| | - H Clevers
- Hubrecht Laboratory, Netherlands Institute for Developmental Biology, Utrecht, The Netherlands
| | - A R Clarke
- European Cancer Stem Cell Research Institute, Cardiff University School of Biosciences, Cardiff, Wales, UK
| | - K R Reed
- European Cancer Stem Cell Research Institute, Cardiff University School of Biosciences, Cardiff, Wales, UK
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Azad AKM, Lawen A, Keith JM. Bayesian model of signal rewiring reveals mechanisms of gene dysregulation in acquired drug resistance in breast cancer. PLoS One 2017; 12:e0173331. [PMID: 28288164 PMCID: PMC5348014 DOI: 10.1371/journal.pone.0173331] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 02/20/2017] [Indexed: 11/24/2022] Open
Abstract
Small molecule inhibitors, such as lapatinib, are effective against breast cancer in clinical trials, but tumor cells ultimately acquire resistance to the drug. Maintaining sensitization to drug action is essential for durable growth inhibition. Recently, adaptive reprogramming of signaling circuitry has been identified as a major cause of acquired resistance. We developed a computational framework using a Bayesian statistical approach to model signal rewiring in acquired resistance. We used the p1-model to infer potential aberrant gene-pairs with differential posterior probabilities of appearing in resistant-vs-parental networks. Results were obtained using matched gene expression profiles under resistant and parental conditions. Using two lapatinib-treated ErbB2-positive breast cancer cell-lines: SKBR3 and BT474, our method identified similar dysregulated signaling pathways including EGFR-related pathways as well as other receptor-related pathways, many of which were reported previously as compensatory pathways of EGFR-inhibition via signaling cross-talk. A manual literature survey provided strong evidence that aberrant signaling activities in dysregulated pathways are closely related to acquired resistance in EGFR tyrosine kinase inhibitors. Our approach predicted literature-supported dysregulated pathways complementary to both node-centric (SPIA, DAVID, and GATHER) and edge-centric (ESEA and PAGI) methods. Moreover, by proposing a novel pattern of aberrant signaling called V-structures, we observed that genes were dysregulated in resistant-vs-sensitive conditions when they were involved in the switch of dependencies from targeted to bypass signaling events. A literature survey of some important V-structures suggested they play a role in breast cancer metastasis and/or acquired resistance to EGFR-TKIs, where the mRNA changes of TGFBR2, LEF1 and TP53 in resistant-vs-sensitive conditions were related to the dependency switch from targeted to bypass signaling links. Our results suggest many signaling pathway structures are compromised in acquired resistance, and V-structures of aberrant signaling within/among those pathways may provide further insights into the bypass mechanism of targeted inhibition.
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Affiliation(s)
- A. K. M. Azad
- School of Mathematical Sciences, Monash University, Clayton, VIC, Australia
- * E-mail:
| | - Alfons Lawen
- Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC, Australia
| | - Jonathan M. Keith
- School of Mathematical Sciences, Monash University, Clayton, VIC, Australia
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Bhat AA, Prabhu KS, Kuttikrishnan S, Krishnankutty R, Babu J, Mohammad RM, Uddin S. Potential therapeutic targets of Guggulsterone in cancer. Nutr Metab (Lond) 2017; 14:23. [PMID: 28261317 PMCID: PMC5331628 DOI: 10.1186/s12986-017-0180-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 02/24/2017] [Indexed: 02/07/2023] Open
Abstract
Natural compounds capable of inducing apoptosis in cancer cells have always been of considerable interest as potential anti-cancer agents. Many such compounds are under screening and development with their potential evolution as a clinical drug benefiting many of the cancer patients. Guggulsterone (GS), a phytosterol isolated gum resin of the tree Commiphora mukul has been widely used in Indian traditional medicine as a remedy for various diseses. GS has been shown to possess cancer chemopreventive and therapeutic potential as established by in vitro and in vivo studies. GS has been shown to target constitutively activated survival pathways such as PI3-kinase/AKT, JAK/STAT, and NFκB signaling pathways that are involved in the regulation of growth and inflammatory responses via regulation of antiapoptotic and inflammatory genes. The current review focuses on the molecular targets of GS, cellular responses, and the animal model studies in various cancers. The mechanistic action of GS in different types of cancers also forms a part of this review. The perspective of translating this natural compound into a clinically approved drug with its pros and cons is also discussed.
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Affiliation(s)
- Ajaz A Bhat
- Translational Research Institute, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
| | - Kirti S Prabhu
- Translational Research Institute, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
| | - Shilpa Kuttikrishnan
- Translational Research Institute, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
| | - Roopesh Krishnankutty
- Translational Research Institute, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
| | - Jayaprakash Babu
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE USA
| | - Ramzi M Mohammad
- Translational Research Institute, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
| | - Shahab Uddin
- Translational Research Institute, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
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Aristizabal-Pachon AF, Castillo WO. Role of GSK3β in breast cancer susceptibility. Cancer Biomark 2017; 18:169-175. [DOI: 10.3233/cbm-160120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Andrés Felipe Aristizabal-Pachon
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Center for Cell-Based Therapy, National Institute of Science and Technology in Stem Cell and Cell Therapy, Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil
| | - Willian Orlando Castillo
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Shoda K, Ichikawa D, Fujita Y, Masuda K, Hiramoto H, Hamada J, Arita T, Konishi H, Komatsu S, Shiozaki A, Kakihara N, Okamoto K, Taniguchi H, Imoto I, Otsuji E. Monitoring the HER2 copy number status in circulating tumor DNA by droplet digital PCR in patients with gastric cancer. Gastric Cancer 2017; 20:126-135. [PMID: 26874951 DOI: 10.1007/s10120-016-0599-z] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 01/25/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND We previously demonstrated the potential of circulating tumor DNA (ctDNA) for the amplification of detecting HER2 in patients with gastric cancer (GC). In the present study, we focused on the clinical courses of patients who developed recurrence with GC, and investigated the potential clinical utility of the ddPCR-based HER2 copy number (CN) as a marker for the temporal and/or spatial heterogeneities of GC during treatment progress. METHOD We enrolled 30 healthy volunteers and 60 patients with GC who underwent surgery, including 17 patients who developed recurrence. Using ribonuclease P RNA component H1 (RPPH1) as a reference gene, plasma HER2 to RPPH1 ratios (the HER2 ratio) were determined using ddPCR. RESULTS The preoperative plasma HER2 ratio correlated with the tumor HER2 status (p < 0.001), and sensitivity and specificity were 0.733 and 0.933, respectively. Analyses of plasma samples during the postoperative follow-up periods revealed that high plasma HER2 ratios were detected at the time of recurrence in 7 of 13 cases, which were diagnosed as being HER2 negative at the time of surgery. These results were supported by continuously increasing HER2 ratios thereafter with the progression of recurrent cancer. CONCLUSION The plasma HER2 ratio determined by ddPCR is a repeatable and noninvasive approach for real-time evaluations of the HER2 status to monitor the effects of treatments for patients with HER2-positive GC and enable treatment options for patients with HER2-negative GC but positive conversion of the HER2 status after recurrence.
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Affiliation(s)
- Katsutoshi Shoda
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
- Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Daisuke Ichikawa
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Yuji Fujita
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
- Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Kiyoshi Masuda
- Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Hidekazu Hiramoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Junichi Hamada
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
- Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Tomohiro Arita
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Hirotaka Konishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Shuhei Komatsu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Atsushi Shiozaki
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Naoki Kakihara
- Department of Surgery, Kyoto Second Red Cross Hospital, 355-5 Haruobi-cho, Kamigyo-ku, Kyoto, 602-8026, Japan
| | - Kazuma Okamoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Hiroki Taniguchi
- Department of Surgery, Kyoto Second Red Cross Hospital, 355-5 Haruobi-cho, Kamigyo-ku, Kyoto, 602-8026, Japan
| | - Issei Imoto
- Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.
| | - Eigo Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kawaramachi Hirokoji Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
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Aristizabal-Pachon AF, Carvalho TI, Carrara HH, Andrade J, Takahashi CS. AXIN2 Polymorphisms, the β-Catenin Destruction Complex Expression Profile and Breast Cancer Susceptibility. Asian Pac J Cancer Prev 2016; 16:7277-84. [PMID: 26514524 DOI: 10.7314/apjcp.2015.16.16.7277] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Wnt/β-catenin signaling pathway is an important regulator of cellular functions such as proliferation, survival and cell adhesion. Wnt/β-catenin signaling is associated with tumor initiation and progression; β-catenin mutations explain only 30% of aberrant signaling found in breast cancer, indicating that other components and/or regulation of the Wnt/β-catenin pathway may be involved. OBJECTIVE We evaluated AXIN2 rs2240308 and rs151279728 polymorphisms, and expression profiles of β-catenin destruction complex genes in breast cancer patients. MATERIALS AND METHODS We collected peripheral blood samples from 102 breast cancer and 102 healthy subjects. The identification of the genetic variation was performed using PCR-RFLPs and DNA sequencing. RT-qPCR was used to determine expression profiles. RESULTS We found significant association of AXIN2 rs151279728 and rs2240308 polymorphisms with breast cancer risk. Significant increase was observed in AXIN2 level expression in breast cancer patients. Further analyses showed APC, β-catenin, CK1α, GSK3β and PP2A gene expression to be associated to clinic-pathological characteristics. CONCLUSIONS The present study demonstrated, for the first time, that AXIN2 genetic defects and disturbance of β-catenin destruction complex expression may be found in breast cancer patients, providing additional support for roles of Wnt/β-catenin pathway dysfunction in breast cancer tumorigenesis. However, the functional consequences of the genetic alterations remain to be determined.
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Akbarzadeh L, Moini Zanjani T, Sabetkasaei M. Comparison of Anticancer Effects of Carbamazepine and Valproic Acid. IRANIAN RED CRESCENT MEDICAL JOURNAL 2016; 18:e37230. [PMID: 28184324 PMCID: PMC5291934 DOI: 10.5812/ircmj.37230] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/22/2016] [Accepted: 06/14/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Valproic acid (VPA) and carbamazepine (CBZ), two widely used antiepileptic drugs, have recently been found to inhibit histone deacetylases (HDAC). HDAC inhibitors (HDACIs) have various effects on cancer cells. OBJECTIVES The aim of this study was to compare the anticancer activity of these drugs on SW480 colon cancer cell lines. METHODS In the present experimental study, implemented during 2014 - 2015 in Iran, after incubation of cells into 96-well plates with 5,500 cells/well, the tested drugs were added, and cytotoxic effects were assessed by MTT. Moreover, after incubation of 8×106 cells in 75 cm² flasks to obtain β-catenin levels and 106 cells in a six-well plate to obtain vascular endothelial growth factor (VEGF) levels , these levels were estimated using enzyme-linked immunosorbent assay (ELISA) analysis. RESULTS Through MTT assay, we found that the inhibitory concentration of 50% (IC50) values for VPA and CBZ were 2.5 mM and 5 μM, respectively in comparison to controls in terms of total concentration and times evaluated (P < 0.0001). We also found that treatments with these drugs decreased levels of β-catenin (P < 0.0001) and VEGF (P < 0.0001) significantly more than controls. CONCLUSIONS VPA and CBZ treatments caused a decrease in β-Catenin and VEGF levels in SW480 colon cancer cell lines. These results suggest that CBZ can be considered a potential antitumor drug with potencies different from VPA.
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Affiliation(s)
- Ladan Akbarzadeh
- Department of Pharmacology, Shahid Beheshti University, Tehran, IR Iran
- Corresponding Author: Ladan Akbarzadeh, Department of Pharmacology, Shahid Beheshti University, Tehran, IR Iran. Tel: +98-9121034458, Fax: +98-2122439969, E-mail:
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Frequent inactivation of MCC/CTNNBIP1 and overexpression of phospho-beta-catenin(Y654) are associated with breast carcinoma: Clinical and prognostic significance. Biochim Biophys Acta Mol Basis Dis 2016; 1862:1472-84. [PMID: 27208794 DOI: 10.1016/j.bbadis.2016.05.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 05/15/2016] [Accepted: 05/16/2016] [Indexed: 12/21/2022]
Abstract
Transcriptional activation of β-catenin is a hallmark of Wnt/β-catenin pathway activation. The MCC (Mutated in colorectal cancers) and CTNNBIP1 (catenin, beta interacting protein 1) are two candidate genes which inhibit the transcriptional activity of nuclear β-catenin. The importance of MCC and CTNNBIP1 in breast cancer (BC) development has not yet been studied in detail. For this reason, in present study, the alterations (deletion/methylation/mutation/expression) of MCC and CTNNBIP1 were analyzed in BC of Indian patients (N=120) followed by expression/mutation analysis of β-catenin. Then transcriptional activity of β-catenin was checked by expression analysis of its target genes (EGFR, C-MYC and CCND1) in the same set of samples. Frequent methylation (44-45%) than deletion (20-32%) with overall alterations of 52-55% was observed in MCC/CTNNBIP1 in the BC samples. The alterations of MCC/CTNNBIP1 showed significant correlation with increased nuclear β-catenin/p-β-catenin(Y654) expression. Also, a significant correlation was seen between nuclear β-catenin expression and overexpression of its target genes like EGFR, MYC and CCND1 in the BC samples (P<0.0001). An upregulation of MCC and CTNNBIP1 expression by 5-Aza-2'-deoxycytidine treatment of MCF7 and MDA-MB-231 cell lines lead to downregulation of β-catenin and its target genes. The expression of nuclear p-β-catenin(Y654), EGFR, MYC and CCND1 were significantly high in TNBC (Triple negative BC) and Her2+ compared to Luminal A/B+ subtypes. The TNBC patients in stage III/IV having reduced expression of MCC in the tumors showed poor prognosis. Thus, our data suggests that inactivation of MCC/CTNNBIP1 could be an important event in activation of β-catenin mediated transcription of target genes in BC.
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Guo L, Liu S, Jakulin A, Yilamu D, Wang B, Yan J. Positive expression of cyclin D1 is an indicator for the evaluation of the prognosis of breast cancer. Int J Clin Exp Med 2015; 8:18656-18664. [PMID: 26770479 PMCID: PMC4694379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 10/06/2015] [Indexed: 06/05/2023]
Abstract
AIMS The present study is to detect the expression of cyclin D1 in different clinical molecular subtypes in breast cancer, and to analyze its relationship to the expression of estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor-2 (Her-2), tumor size, clinical stages, histological grades, age of menarche, and prognosis. METHODS In the present study, we retrospectively reviewed the clinical information of 226 patients with breast cancer who were hospitalized at The First Affiliated Hospital of Xinjiang Medical University between January 2000 and December 2012. Immunohistochemical method was used to detect the expression of cyclin D1 in breast cancer tissues. Pearson's Chi-square test was performed to compare the expression of cyclin D1 under different clinical indicators, and under different immune indexes and subtypes. Spearman rank correlation method was used to analyze the correlation between cyclin D1 expression and ER, PR, Her-2, tumor size, clinical stages, histological grades and age of menarche. Kaplan-Meier was employed to calculate the survival time of tumor-free survival time. Log-rank method was used to analyze the survival curves. RESULTS The expression of cyclin D1 was not significantly correlated to tumor size, clinical stages, histological grades, age of menarche, or PR, but was correlated to ER. Higher cyclin D1 positive rate corresponded to higher ER positive rate. The expression of cyclin D1 was negatively correlated to Her-2 expression (P < 0.05). Higher cyclin D1 positive rate corresponded to lower Her-2 positive rate. In cyclin D1 positive group, the percentage of Luminal A type was the highest. In cyclin D1 negative group, the percentage of Luminal B type was the highest. Higher cyclin D1 positive rate led to longer tumor-free survival time. CONCLUSIONS The expression of cyclinD1 is significantly correlated to ER and Her-2. Positive expression of cyclin D1 suggests good prognosis, and can be used as an indicator for the evaluation of the prognosis of breast cancer.
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Affiliation(s)
- Liying Guo
- Department of Breast Cancer, Digestive & Vascular Center, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054, P. R. China
| | - Sha Liu
- Department of Breast Cancer, Digestive & Vascular Center, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054, P. R. China
| | - Adina Jakulin
- Department of Breast Cancer, Digestive & Vascular Center, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054, P. R. China
| | - Dilimina Yilamu
- Department of Breast Cancer, Digestive & Vascular Center, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054, P. R. China
| | - Bowei Wang
- Department of Pathology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054, P. R. China
| | - Jinghong Yan
- Department of Medical Records, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054, P. R. China
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Timmermans-Sprang EPM, Gracanin A, Mol JA. High basal Wnt signaling is further induced by PI3K/mTor inhibition but sensitive to cSRC inhibition in mammary carcinoma cell lines with HER2/3 overexpression. BMC Cancer 2015. [PMID: 26205886 PMCID: PMC4513708 DOI: 10.1186/s12885-015-1544-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Elevated basal, ligand-independent, Wnt signaling in some canine breast cancer cells is not caused by classical mutations in APC, β-Catenin or GSK3β but, at least partially, by enhanced LEF1 expression. We examined the expression and function of EGFR/HER-regulated pathways on the ligand-independent Wnt signaling. Methods Twelve canine mammary tumor cell lines with previously reported differential basal Wnt activity were used. The expression levels of genes related to EGF-signaling were analyzed by cluster analysis. Cell lines with a combined overexpression of EGF-related genes and enhanced basal Wnt activity were treated with PI3K/mTor or cSRC inhibitors or transfected with a construct expressing wild-type PTEN. Subsequently, effects were measured on Wnt activity, cell proliferation, gene expression and protein level. Results High basal Wnt/LEF1 activity was associated with overexpression of HER2/3, ID1, ID2, RAC1 and HSP90 together with low to absent cMET and PTEN mRNA expression, suggesting a connection between Wnt- and HER-signaling pathways. Inhibition of the HER-regulated PI3K/mTor pathway using the dual PI3K/mTor inhibitor BEZ235 or the mTor inhibitor Everolimus® resulted in reduced cell proliferation. In the cell line with high basal Wnt activity, however, an unexpected further increased Wnt activity was found that could be greatly reduced after inhibition of the HER-regulated cSRC activity. Inhibition of the PI3K/mTor pathway was associated with enhanced expression of β-Catenin, Axin2, MUC1, cMET, EGFR and HER2 and a somewhat increased β-Catenin protein content, whereas cSRC inhibition was associated with slightly enhanced HER3 and SLUG mRNA expression. A high protein expression of HER3 was found only in a cell line with high basal Wnt activity. Conclusions High basal Wnt activity in some mammary cancer cell lines is associated with overexpression of HER-receptor related genes and HER3 protein, and the absence of PTEN. Inhibition of the PI3K/mTor pathway further stimulated, however, canonical Wnt signaling, whereas the inhibitory effect with the cSRC inhibitor Src-I1 on the Wnt activity further suggested a connection between Wnt and HER2/3-signaling.
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Affiliation(s)
- Elpetra P M Timmermans-Sprang
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584, CM, Utrecht, The Netherlands.
| | - Ana Gracanin
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584, CM, Utrecht, The Netherlands.
| | - Jan A Mol
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584, CM, Utrecht, The Netherlands.
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Amin H, Nayak D, ur Rasool R, Chakraborty S, Kumar A, Yousuf K, Sharma PR, Ahmed Z, Sharma N, Magotra A, Mukherjee D, Kumar LD, Goswami A. Par-4 dependent modulation of cellular β-catenin by medicinal plant natural product derivative 3-azido Withaferin A. Mol Carcinog 2015; 55:864-81. [DOI: 10.1002/mc.22328] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 03/15/2015] [Accepted: 03/26/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Hina Amin
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
- School of Biosciences and Biotechnology; Baba Ghulam Shah Badshah University; Rajouri Jammu and Kashmir India
| | - Debasis Nayak
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Reyaz ur Rasool
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Souneek Chakraborty
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Anmol Kumar
- Center for Cellular and Molecular Biology; Uppal Road; Hyderabad Andra Pradesh India
| | - Khalid Yousuf
- Natural Product Chemistry; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Parduman Raj Sharma
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Zabeer Ahmed
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Neelam Sharma
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Asmita Magotra
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Debaraj Mukherjee
- Natural Product Chemistry; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
| | - Lekha Dinesh Kumar
- Center for Cellular and Molecular Biology; Uppal Road; Hyderabad Andra Pradesh India
| | - Anindya Goswami
- Cancer Pharmacology Division; Indian Institute of Integrative Medicine (CSIR), Canal Road; Jammu Tawi Jammu and Kashmir India
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Analysis of wntless (WLS) expression in gastric, ovarian, and breast cancers reveals a strong association with HER2 overexpression. Mod Pathol 2015; 28:428-36. [PMID: 25258105 DOI: 10.1038/modpathol.2014.114] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/20/2014] [Accepted: 07/20/2014] [Indexed: 12/31/2022]
Abstract
The oncogenic role of WNT is well characterized. Wntless (WLS) (also known as GPR177, or Evi), a key modulator of WNT protein secretion, was recently found to be highly overexpressed in malignant astrocytomas. We hypothesized that this molecule may be aberrantly expressed in other cancers known to possess aberrant WNT signaling such as ovarian, gastric, and breast cancers. Immunohistochemical analysis using a TMA platform revealed WLS overexpression in a subset of ovarian, gastric, and breast tumors; this overexpression was associated with poorer clinical outcomes in gastric cancer (P=0.025). In addition, a strong correlation was observed between WLS expression and human epidermal growth factor receptor 2 (HER2) overexpression. Indeed, 100% of HER2-positive intestinal gastric carcinomas, 100% of HER2-positive serous ovarian carcinomas, and 64% of HER2-positive breast carcinomas coexpressed WLS protein. Although HER2 protein expression or gene amplification is an established predictive biomarker for trastuzumab response in breast and gastric cancers, a significant proportion of HER2-positive tumors display resistance to trastuzumab, which may be in part explainable by a possible mechanistic link between WLS and HER2.
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24
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Cuello-Carrión FD, Shortrede JE, Alvarez-Olmedo D, Cayado-Gutiérrez N, Castro GN, Zoppino FCM, Guerrero M, Martinis E, Wuilloud R, Gómez NN, Biaggio V, Orozco J, Gago FE, Ciocca LA, Fanelli MA, Ciocca DR. HER2 and β-catenin protein location: importance in the prognosis of breast cancer patients and their correlation when breast cancer cells suffer stressful situations. Clin Exp Metastasis 2015; 32:151-68. [DOI: 10.1007/s10585-015-9694-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 01/06/2015] [Indexed: 12/11/2022]
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25
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Axillary metaplastic breast carcinoma with ipsilateral pectoral invasive ductal carcinoma: an unusual presentation. Case Rep Oncol Med 2014; 2014:938509. [PMID: 25364575 PMCID: PMC4182015 DOI: 10.1155/2014/938509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 09/06/2014] [Indexed: 11/25/2022] Open
Abstract
We report a case of axillary metaplastic breast carcinoma (MBC) with triple negative (ER−/PR−/Her2−) phenotype, concurrent with multifocal invasive ductal carcinoma (IDC) of ipsilateral pectoral breast (ER+/PR+/Her2−) in a 60-year-old woman. The two tumors demonstrate different morphology, immunophenotype, and opposite response to neoadjuvant chemotherapy of paclitaxol, adriamycin, and cyclophosphamide. Methylation analysis of human androgen receptor (HUMARA) on X-chromosome identified monoclonal pattern of X-chromosome inactivation in MBC and mosaic pattern in the IDC. Stem cell origin of MBC is suggested in this case. Clinicopathological features, imaging findings, biological markers, chemoradiation management, and prognosis of MBC are reviewed in comparison to invasive ductal carcinoma. Our case and literature review suggest that traditional chemotherapy applicable to IDC is less effective towards MBC. However, new chemotherapy protocols targeting stem cell and multimodality management of MBC are promising. Recognition of unusual presentation of MBC will help tailor therapy towards tumor with worse prognosis.
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Bishayee A, Mandal A. Trianthema portulacastrum Linn. exerts chemoprevention of 7,12-dimethylbenz(a)anthracene-induced mammary tumorigenesis in rats. Mutat Res 2014; 768:107-118. [PMID: 24451939 DOI: 10.1016/j.mrfmmm.2014.01.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/21/2013] [Accepted: 01/02/2014] [Indexed: 06/03/2023]
Abstract
Due to limited treatment options for advanced-stage metastatic breast cancer, a high priority should be given to develop non-toxic chemopreventive drugs. The value of various natural and dietary agents to reduce the risk of developing breast cancer is well established. Trianthema portulacastrum Linn. (Aizoaceae), a dietary and medicinal plant, has been found to exert antihepatotoxic and antihepatocarcinogenic properties in rodents. This study was initiated to investigate mechanism-based chemopreventive potential of an ethanolic extract of T. portulacastrum (TPE) against 7,12-dimethylbenz(a)anthracene (DMBA)-initiated rat mammary gland carcinogenesis, an experimental tumor model that closely resembles human breast cancer. Rats had access to a basal diet supplemented with TPE to yield three dietary doses of the extract, i.e., 50, 100 and 200 mg/kg body weight. Following two weeks of TPE treatment, mammary tumorigenesis was initiated by oral administration of DMBA (50 mg/kg body weight). At the end of the study (16 weeks after DMBA exposure), TPE exhibited a striking reduction of DMBA-induced mammary tumor incidence, total tumor burden and average tumor weight and reversed intratumor histopathological alterations. TPE dose-dependently suppressed proliferating cell nuclear antigen and cyclin D1 expression, induced apoptosis, upregulated proapoptotic protein Bax, downregulated antiapoptotic protein Bcl-2 and diminished the expression of nuclear and cytosolic β-catenin in mammary tumors. Our results clearly provide the first experimental evidence that TPE exerts chemopreventive effect in the classical DMBA model of breast cancer by suppressing abnormal cell proliferation and inducing apoptosis mediated through alteration of Bax/Bcl-2 ratio. Mechanistically, TPE is capable of diminishing activated canonical Wnt/β-catenin signaling to exhibit antiproliferative, proapoptotic and oncostatic effects during an early-stage breast cancer. These results may encourage further studies to explore full potential of T. portulacastrum phytoconstituents as breast cancer chemopreventive agents.
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Affiliation(s)
- Anupam Bishayee
- Department of Pharmaceutical Sciences, School of Pharmacy, American University of Health Sciences, Signal Hill, CA 90755, USA.
| | - Animesh Mandal
- Cancer Therapeutics and Chemoprevention Group, Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH 44272, USA
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27
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Mandal A, Bhatia D, Bishayee A. Simultaneous disruption of estrogen receptor and Wnt/β-catenin signaling is involved in methyl amooranin-mediated chemoprevention of mammary gland carcinogenesis in rats. Mol Cell Biochem 2014; 384:239-50. [PMID: 24078029 DOI: 10.1007/s11010-013-1803-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 08/30/2013] [Indexed: 12/21/2022]
Abstract
Methyl-amoorain (methyl-25-hydroxy-3-oxoo-lean-12-en-28-oate, AMR-Me), a novel synthetic oleanane triterpenoid, exerts a striking chemopreventive effect against 7,12-dimethylbenz(a)anthracene (DMBA)-induced rat mammary tumorigenesis through antiproliferative and proapoptotic actions. Nevertheless, the underlying mechanisms of action remain to be established. As estrogen receptor (ER) and canonical Wnt/b-catenin signaling are involved in the development and progression of breast cancer, the current study was designed to investigate the effects of AMR-Me treatment on the expressions of ER-a, ER-b, b-catenin and cyclin D1 in rat mammary tumors induced by DMBA. Mammary tumor samples were harvested from an 18-week chemopreventive study in which AMR-Me (0.8–1.6 mg/kg) was shown to inhibit mammary carcinogenesis in a dose–response manner. The expressions of ER-a, ER-b, b-catenin, and cyclin D1 were determined by immunohistochemistry and reverse transcription-polymerase chain reaction. AMR-Me downregulated the expression of intratumor ER-a and ER-b and lowered the ratio of ER-a to ER-b. AMR-Me also reduced the expression, cytoplasmic accumulation, and nuclear translocation of b-catenin, the essential transcriptional cofactor for Wnt signaling. Furthermore, AMR-Me modulated the expression of cell growth regulatory gene cyclin D1, which is a downstream target for both ER and Wnt signaling. AMR-Me at 1.6 mg/kg for 18 weeks did not exhibit any hepatotoxicity or renotoxicity. The results of the present study coupled with our previous findings indicate that simultaneous disruption of ER and Wnt/b-catenin signaling possibly contributes to antiproliferative and apoptosis-inducing effects implicated in AMR-Me-mediated chemoprevention of DMBA-induced breast tumorigenesis in rats. Our results also suggest a possible crosstalk between two key regulatory pathways, namely ER and Wnt/b-catenin signaling, involved in mammary carcinogenesis and the value of simultaneously targeting these pathways to achieve breast cancer chemoprevention.
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28
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Piva M, Domenici G, Iriondo O, Rábano M, Simões BM, Comaills V, Barredo I, López-Ruiz JA, Zabalza I, Kypta R, Vivanco MDM. Sox2 promotes tamoxifen resistance in breast cancer cells. EMBO Mol Med 2014; 6:66-79. [PMID: 24178749 PMCID: PMC3936493 DOI: 10.1002/emmm.201303411] [Citation(s) in RCA: 249] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 09/20/2013] [Accepted: 09/24/2013] [Indexed: 01/16/2023] Open
Abstract
Development of resistance to therapy continues to be a serious clinical problem in breast cancer management. Cancer stem/progenitor cells have been shown to play roles in resistance to chemo- and radiotherapy. Here, we examined their role in the development of resistance to the oestrogen receptor antagonist tamoxifen. Tamoxifen-resistant cells were enriched for stem/progenitors and expressed high levels of the stem cell marker Sox2. Silencing of the SOX2 gene reduced the size of the stem/progenitor cell population and restored sensitivity to tamoxifen. Conversely, ectopic expression of Sox2 reduced tamoxifen sensitivity in vitro and in vivo. Gene expression profiling revealed activation of the Wnt signalling pathway in Sox2-expressing cells, and inhibition of Wnt signalling sensitized resistant cells to tamoxifen. Examination of patient tumours indicated that Sox2 levels are higher in patients after endocrine therapy failure, and also in the primary tumours of these patients, compared to those of responders. Together, these results suggest that development of tamoxifen resistance is driven by Sox2-dependent activation of Wnt signalling in cancer stem/progenitor cells.
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Affiliation(s)
- Marco Piva
- Cell Biology and Stem Cells Unit, CIC bioGUNEBilbao, Spain
| | | | - Oihana Iriondo
- Cell Biology and Stem Cells Unit, CIC bioGUNEBilbao, Spain
| | - Miriam Rábano
- Cell Biology and Stem Cells Unit, CIC bioGUNEBilbao, Spain
| | - Bruno M Simões
- Cell Biology and Stem Cells Unit, CIC bioGUNEBilbao, Spain
| | | | | | | | - Ignacio Zabalza
- Department of Pathology, Galdakao-Usansolo HospitalGaldakao, Spain
| | - Robert Kypta
- Cell Biology and Stem Cells Unit, CIC bioGUNEBilbao, Spain
- Department of Surgery and Cancer, Imperial College LondonLondon, UK
| | - Maria d M Vivanco
- Cell Biology and Stem Cells Unit, CIC bioGUNEBilbao, Spain
- *Corresponding author: Tel: +34 944061322; Fax: +34 944061301; E-mail:
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Hollern DP, Andrechek ER. A genomic analysis of mouse models of breast cancer reveals molecular features of mouse models and relationships to human breast cancer. Breast Cancer Res 2014; 16:R59. [PMID: 25069779 PMCID: PMC4078930 DOI: 10.1186/bcr3672] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 12/04/2013] [Indexed: 02/11/2023] Open
Abstract
INTRODUCTION Genomic variability limits the efficacy of breast cancer therapy. To simplify the study of the molecular complexity of breast cancer, researchers have used mouse mammary tumor models. However, the degree to which mouse models model human breast cancer and are reflective of the human heterogeneity has yet to be demonstrated with gene expression studies on a large scale. METHODS To this end, we have built a database consisting of 1,172 mouse mammary tumor samples from 26 different major oncogenic mouse mammary tumor models. RESULTS In this dataset we identified heterogeneity within mouse models and noted a surprising amount of interrelatedness between models, despite differences in the tumor initiating oncogene. Making comparisons between models, we identified differentially expressed genes with alteration correlating with initiating events in each model. Using annotation tools, we identified transcription factors with a high likelihood of activity within these models. Gene signatures predicted activation of major cell signaling pathways in each model, predictions that correlated with previous genetic studies. Finally, we noted relationships between mouse models and human breast cancer at both the level of gene expression and predicted signal pathway activity. Importantly, we identified individual mouse models that recapitulate human breast cancer heterogeneity at the level of gene expression. CONCLUSIONS This work underscores the importance of fully characterizing mouse tumor biology at molecular, histological and genomic levels before a valid comparison to human breast cancer may be drawn and provides an important bioinformatic resource.
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Verhaegh W, van Ooijen H, Inda MA, Hatzis P, Versteeg R, Smid M, Martens J, Foekens J, van de Wiel P, Clevers H, van de Stolpe A. Selection of personalized patient therapy through the use of knowledge-based computational models that identify tumor-driving signal transduction pathways. Cancer Res 2014; 74:2936-45. [PMID: 24695361 DOI: 10.1158/0008-5472.can-13-2515] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Increasing knowledge about signal transduction pathways as drivers of cancer growth has elicited the development of "targeted drugs," which inhibit aberrant signaling pathways. They require a companion diagnostic test that identifies the tumor-driving pathway; however, currently available tests like estrogen receptor (ER) protein expression for hormonal treatment of breast cancer do not reliably predict therapy response, at least in part because they do not adequately assess functional pathway activity. We describe a novel approach to predict signaling pathway activity based on knowledge-based Bayesian computational models, which interpret quantitative transcriptome data as the functional output of an active signaling pathway, by using expression levels of transcriptional target genes. Following calibration on only a small number of cell lines or cohorts of patient data, they provide a reliable assessment of signaling pathway activity in tumors of different tissue origin. As proof of principle, models for the canonical Wnt and ER pathways are presented, including initial clinical validation on independent datasets from various cancer types.
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Affiliation(s)
- Wim Verhaegh
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Henk van Ooijen
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Márcia A Inda
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Pantelis Hatzis
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Rogier Versteeg
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Marcel Smid
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - John Martens
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - John Foekens
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Paul van de Wiel
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Hans Clevers
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
| | - Anja van de Stolpe
- Authors' Affiliations: Molecular Diagnostics, Philips Research, Eindhoven; Hubrecht Institute, Utrecht; Human Genetics, AMC, Amsterdam; and Medical Oncology, Erasmus MC, Rotterdam, the Netherlands
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Lee MA, Park JH, Rhyu SY, Oh ST, Kang WK, Kim HN. Wnt3a expression is associated with MMP-9 expression in primary tumor and metastatic site in recurrent or stage IV colorectal cancer. BMC Cancer 2014; 14:125. [PMID: 24564183 PMCID: PMC3937452 DOI: 10.1186/1471-2407-14-125] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 02/13/2014] [Indexed: 11/24/2022] Open
Abstract
Background The wnt/β-catenin signaling pathway is known to affect in cancer oncogenesis and progression by interacting with the tumor microenvironment. However, the roles of wnt3a and wnt5a in colorectal cancer (CRC) have not been thoroughly studied. In the present study, we investigated the expression of wnt protein and the concordance rate in primary tumor and metastatic sites in CRC. To determine the relationship of wnt proteins with invasion related protein, we also analyzed the association between wnt protein expression and the expression of matrix metalloproteinase-9 (MMP-9) and vascular endothelial growth factor receptor-2 (VEGFR-2). Methods Tumor tissue was obtained from eighty-three paraffin- embedded blocks which were using resected tissue from both the primary tumor and metastatic sites for each patient. We performed immunohistochemical staining for wnt3a, wnt5a, β-catenin, MMP-9 and VEGFR-2. Results Wnt3a, wnt5a, β-catenin, and MMP-9 expression was high; the proteins were found in over 50% of the primary tumors, but the prevalence was lower in tissue from metastatic sites. The concordance rates between the primary tumor and metastatic site were 76.2% for wnt5a and 79.4% for wnt3a and β-catenin, but VEGFR-2 was expressed in 67.4% of the metastatic sites even when not found in the primary tumor. Wnt3a expression in primary tumors was significantly associated with lymph node involvement (p = 0.038) and MMP-9 expression in the primary tumor (p = 0.0387), mesenchyme adjacent to tumor (p = 0.022) and metastatic site (p = 0.004). There was no other relationship in the expression of these proteins. Vascular invasion in primary tumor tissue may be a potential prognostic marker for liver metastasis, but no significant association was observed among the wnt protein, MMP-9, and VEGFR-2 for peritoneal seeding. In survival analysis, β-catenin expression was significantly correlated with overall survival (p = 0.05). Conclusions Wnt3a and wnt5a expression had a concordance rate higher than 60% with a high concordance rate between the primary tumor and metastatic site. Wnt3a expression is associated with the expression of MMP-9 in primary tumor tissue adjacent mesenchymal tissue, and at the metastatic site. As a prognostic marker, only β-catenin expression showed significant relation with survival outcome.
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Affiliation(s)
- Myung Ah Lee
- Division of Medical Oncology, Department of Internal Medicine, Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul St, Mary's Hospital, 222 Banpo-daero, Seocho-gu, 137-701 Seoul, Korea.
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Krishnan K, Steptoe AL, Martin HC, Pattabiraman DR, Nones K, Waddell N, Mariasegaram M, Simpson PT, Lakhani SR, Vlassov A, Grimmond SM, Cloonan N. miR-139-5p is a regulator of metastatic pathways in breast cancer. RNA (NEW YORK, N.Y.) 2013; 19:1767-1780. [PMID: 24158791 PMCID: PMC3884652 DOI: 10.1261/rna.042143.113] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 09/12/2013] [Indexed: 05/29/2023]
Abstract
Metastasis is a complex, multistep process involved in the progression of cancer from a localized primary tissue to distant sites, often characteristic of the more aggressive forms of this disease. Despite being studied in great detail in recent years, the mechanisms that govern this process remain poorly understood. In this study, we identify a novel role for miR-139-5p in the inhibition of breast cancer progression. We highlight its clinical relevance by reviewing miR-139-5p expression across a wide variety of breast cancer subtypes using in-house generated and online data sets to show that it is most frequently lost in invasive tumors. A biotin pull-down approach was then used to identify the mRNA targets of miR-139-5p in the breast cancer cell line MCF7. Functional enrichment analysis of the pulled-down targets showed significant enrichment of genes in pathways previously implicated in breast cancer metastasis (P < 0.05). Further bioinformatic analysis revealed a predicted disruption to the TGFβ, Wnt, Rho, and MAPK/PI3K signaling cascades, implying a potential role for miR-139-5p in regulating the ability of cells to invade and migrate. To corroborate this finding, using the MDA-MB-231 breast cancer cell line, we show that overexpression of miR-139-5p results in suppression of these cellular phenotypes. Furthermore, we validate the interaction between miR-139-5p and predicted targets involved in these pathways. Collectively, these results suggest a significant functional role for miR-139-5p in breast cancer cell motility and invasion and its potential to be used as a prognostic marker for the aggressive forms of breast cancer.
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Affiliation(s)
- Keerthana Krishnan
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia 4072
| | - Anita L. Steptoe
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia 4072
| | - Hilary C. Martin
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia 4072
| | | | - Katia Nones
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia 4072
| | - Nic Waddell
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia 4072
| | - Mythily Mariasegaram
- The University of Queensland, UQ Centre for Clinical Research (UQCCR), Herston, QLD, Australia 4029
| | - Peter T. Simpson
- The University of Queensland, UQ Centre for Clinical Research (UQCCR), Herston, QLD, Australia 4029
| | - Sunil R. Lakhani
- The University of Queensland, UQ Centre for Clinical Research (UQCCR), Herston, QLD, Australia 4029
- The University of Queensland, School of Medicine, Herston, QLD, Australia 4029
- Pathology Queensland, The Royal Brisbane and Women's Hospital, Herston, QLD, Australia 4029
| | | | - Sean M. Grimmond
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia 4072
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, G61 1BD, United Kingdom
| | - Nicole Cloonan
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia 4072
- QIMR Berghofer Medical Research Institute, Genomic Biology Laboratory, Herston, Australia 4006
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Bu W, Zhang X, Dai H, Huang S, Li Y. Mammary cells with active Wnt signaling resist ErbB2-induced tumorigenesis. PLoS One 2013; 8:e78720. [PMID: 24265712 PMCID: PMC3827100 DOI: 10.1371/journal.pone.0078720] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 09/20/2013] [Indexed: 11/23/2022] Open
Abstract
Aberrant activation of Wnt signaling is frequent in human malignancies. In normal epithelial tissues, including the breast, Wnt signaling is active only in a subset of cells, but it is unknown whether this subset of Wnt signaling-active cells is at increased risk of carcinogenesis. We created transgenic mice (TOP-tva) in which the synthetic Wnt-responsive promoter TOP controlled the gene encoding TVA, which confers susceptibility to infection by the retroviral vector RCAS. Thus, only cells in which Wnt signaling is active will express tva and be targeted by RCAS. Surprisingly, we found that RCAS-mediated delivery of cDNA encoding a constitutively activated version of ErbB2 (HER2/Neu) into the small number of TVA+ mammary epithelial cells in TOP-tva mice failed to induce tumor, while the same virus readily induced mammary tumors after it was delivered into a comparable number of cells in our previously reported mouse line MMTV-tva, whose tva is broadly expressed in mammary epithelium. Furthermore, we could not even detect any early lesions or infected cells in TOP-tva mice at the time of necropsy. Therefore, we conclude that the Wnt pathway-active cell subset in the normal mammary epithelium does not evolve into tumors following ErbB2 activation–rather, they apparently die due to apoptosis, an anticancer “barrier” that we have reported to be erected in some mammary cells followed ErbB2 activation. In accord with these mouse model data, we found that unlike the basal subtype, ErbB2+ human breast cancers rarely involve aberrant activation of Wnt signaling. This is the first report of a defined sub-population of mammalian cells that is “protected” from tumorigenesis by a potent oncogene, and provides direct in vivo evidence that mammary epithelial cells are not equal in their response to oncogene-initiated transformation.
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Affiliation(s)
- Wen Bu
- Lester & Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Xiang Zhang
- Lester & Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Hua Dai
- Lester & Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Physiology, School of Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Shixia Huang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Yi Li
- Lester & Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- * E-mail:
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Cuello-Carrión FD, Cayado-Gutiérrez N, Natoli AL, Restall C, Anderson RL, Nadin S, Alvarez-Olmedo D, Castro GN, Gago FE, Fanelli MA, Ciocca DR. In MMTV-Her-2/neu transgenic mammary tumors the absence of caveolin-1-/- alters PTEN and NHERF1 but not β-catenin expression. Cell Stress Chaperones 2013; 18:559-67. [PMID: 23397229 PMCID: PMC3745264 DOI: 10.1007/s12192-013-0408-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 01/23/2013] [Accepted: 01/24/2013] [Indexed: 01/25/2023] Open
Abstract
In a recent study, we have shown that in mammary tumors from mice lacking the Cav-1 gene, there are alterations in specific heat shock proteins as well as in tumor development. With this in mind, we have now investigated other proteins in the same mammary mouse tumor model (Her-2/neu expressing mammary tumors from Cav-1 wild type and Cav-1 null mice), to further comprehend the complex tumor-stroma mechanisms involved in regulating stress responses during tumor development. In this tumor model the cancer cells always lacked of Cav-1, so the KO influenced the Cav-1 in the stroma. By immunohistochemistry, we have found a striking co-expression of β-catenin and Her-2/neu in the tumor cells. The absence of Cav-1 in the tumor stroma had no effect on expression or localization of β-catenin and Her-2/neu. Both proteins appeared co-localized at the cell surface during tumor development and progression. Since Her-2/neu activation induces MTA1, we next evaluated MTA1 in the mouse tumors. Although this protein was found in numerous nuclei, the absence of Cav-1 did not alter its expression level. In contrast, significantly more PTEN protein was noted in the tumors lacking Cav-1 in the stroma, with the protein localized mainly in the nuclei. P-Akt levels were relatively low in tumors from both Cav-1 WT and Cav-1 KO mice. There was also an increase in nuclear NHERF1 expression levels in the tumors arising from Cav-1 KO mice. The data obtained in the MMTV-neu model are consistent with a role for Cav-1 in adjacent breast cancer stromal cells in modulating the expression and localization of important proteins implicated in tumor cell behavior.
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Affiliation(s)
- F. Darío Cuello-Carrión
- />Laboratory of Oncology, Institute of Experimental Medicine and Biology of Cuyo (IMBECU), Technology and Scientific Center (CCT)-National Research Council of Argentina (CONICET), Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Niubys Cayado-Gutiérrez
- />Laboratory of Oncology, Institute of Experimental Medicine and Biology of Cuyo (IMBECU), Technology and Scientific Center (CCT)-National Research Council of Argentina (CONICET), Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Anthony L. Natoli
- />Metastasis Research Laboratory, Peter MacCallum Cancer Centre, Victoria, Australia
| | - Christina Restall
- />Metastasis Research Laboratory, Peter MacCallum Cancer Centre, Victoria, Australia
| | - Robin L. Anderson
- />Metastasis Research Laboratory, Peter MacCallum Cancer Centre, Victoria, Australia
- />Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC 3010 Australia
| | - Silvina Nadin
- />Laboratory of Oncology, Institute of Experimental Medicine and Biology of Cuyo (IMBECU), Technology and Scientific Center (CCT)-National Research Council of Argentina (CONICET), Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Daiana Alvarez-Olmedo
- />Laboratory of Oncology, Institute of Experimental Medicine and Biology of Cuyo (IMBECU), Technology and Scientific Center (CCT)-National Research Council of Argentina (CONICET), Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Gisela N. Castro
- />Laboratory of Oncology, Institute of Experimental Medicine and Biology of Cuyo (IMBECU), Technology and Scientific Center (CCT)-National Research Council of Argentina (CONICET), Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Francisco E. Gago
- />Medical School, National University of Cuyo, and Italian Hospital, Mendoza, Argentina
| | - Mariel A. Fanelli
- />Laboratory of Oncology, Institute of Experimental Medicine and Biology of Cuyo (IMBECU), Technology and Scientific Center (CCT)-National Research Council of Argentina (CONICET), Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Daniel R. Ciocca
- />Laboratory of Oncology, Institute of Experimental Medicine and Biology of Cuyo (IMBECU), Technology and Scientific Center (CCT)-National Research Council of Argentina (CONICET), Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
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35
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Jiang G, Xiao X, Zeng Y, Nagabhushanam K, Majeed M, Xiao D. Targeting beta-catenin signaling to induce apoptosis in human breast cancer cells by z-guggulsterone and Gugulipid extract of Ayurvedic medicine plant Commiphora mukul. Altern Ther Health Med 2013; 13:203. [PMID: 23914993 PMCID: PMC3735424 DOI: 10.1186/1472-6882-13-203] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 07/29/2013] [Indexed: 12/16/2022]
Abstract
Background z-Guggulsterone (z-Gug) and Gugulipid (GL) have been used to treat a variety of ailments. We now report their anti-cancer effect and mechanism against human breast cancer. Methods Using the human estrogen receptor-positive (MCF-7) and triple-negative (MDA-MB-231) breast cancer cells as well as the normal human mammary epithelial cell line (HMEC), we evaluated the anti-breast-cancer efficacy and apoptosis inducing activity of GL. We determined the cellular and molecular mechanism of GL-inhibited breast cancer cell growth. Results GL significantly inhibited growth of MCF-7 and MDA-MB-231 cells with an IC50~2 μM at pharmacologically relevant concentrations standardized to its major active constituent z-Gug. The GL-induced growth inhibition correlated with apoptosis induction as evidenced by an increase in cytoplasmic histone-associated DNA fragmentation and caspase 3 activity. The GL-induced apoptosis was associated with down-regulation of the β-Catenin signaling pathway. The decreased expression of Wnt/β-Catenin targeting genes, such as cyclin D1, C-myc and survivin, and the inhibition of the activity of the transcription factor (T-cell factor 4, TCF-4) were observed in GL-treated breast cancer cells. The GL treatment resulted in a significant reduction of β-Catenin /TCF-4 complex in both of the cancer cells. The GL-induced apoptotic cell death was significantly enhanced by RNA Interference of β-Catenin and TCF-4. On the other hand, the normal human mammary epithelial cell HMEC, compared with the human breast cancer cells, is significantly more resistant to growth inhibition and apoptosis induction by GL. Conclusion The present study indicates that the β-Catenin signaling pathway is the target for GL-induced growth inhibition and apoptosis in human breast cancer.
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Lamb R, Ablett MP, Spence K, Landberg G, Sims AH, Clarke RB. Wnt pathway activity in breast cancer sub-types and stem-like cells. PLoS One 2013; 8:e67811. [PMID: 23861811 PMCID: PMC3701602 DOI: 10.1371/journal.pone.0067811] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 05/22/2013] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Wnt signalling has been implicated in stem cell regulation however its role in breast cancer stem cell regulation remains unclear. METHODS We used a panel of normal and breast cancer cell lines to assess Wnt pathway gene and protein expression, and for the investigation of Wnt signalling within stem cell-enriched populations, mRNA and protein expression was analysed after the selection of anoikis-resistant cells. Finally, cell lines and patient-derived samples were used to investigate Wnt pathway effects on stem cell activity in vitro. RESULTS Wnt pathway signalling increased in cancer compared to normal breast and in both cell lines and patient samples, expression of Wnt pathway genes correlated with estrogen receptor (ER) expression. Furthermore, specific Wnt pathway genes were predictive for recurrence within subtypes of breast cancer. Canonical Wnt pathway genes were increased in breast cancer stem cell-enriched populations in comparison to normal breast stem cell-enriched populations. Furthermore in cell lines, the ligand Wnt3a increased whilst the inhibitor DKK1 reduced mammosphere formation with the greatest inhibitory effects observed in ER+ve breast cancer cell lines. In patient-derived metastatic breast cancer samples, only ER-ve mammospheres were responsive to the ligand Wnt3a. However, the inhibitor DKK1 efficiently inhibited both ER+ve and ER-ve breast cancer but not normal mammosphere formation, suggesting that the Wnt pathway is aberrantly activated in breast cancer mammospheres. CONCLUSIONS Collectively, these data highlight differential Wnt signalling in breast cancer subtypes and activity in patient-derived metastatic cancer stem-like cells indicating a potential for Wnt-targeted treatment in breast cancers.
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MESH Headings
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/genetics
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Lobular/genetics
- Carcinoma, Lobular/metabolism
- Carcinoma, Lobular/pathology
- Cell Line, Tumor
- Female
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Humans
- Intercellular Signaling Peptides and Proteins/genetics
- Intercellular Signaling Peptides and Proteins/metabolism
- Neoplasm Metastasis
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Organ Specificity
- Receptors, Estrogen/genetics
- Receptors, Estrogen/metabolism
- Signal Transduction
- Wnt3A Protein/genetics
- Wnt3A Protein/metabolism
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Affiliation(s)
- Rebecca Lamb
- Breakthrough Breast Cancer Research Unit, University of Manchester, Manchester, England
- * E-mail: (RC); (RL)
| | | | - Katherine Spence
- Breast Biology Group, University of Manchester, Manchester, England
| | - Göran Landberg
- Breakthrough Breast Cancer Research Unit, University of Manchester, Manchester, England
| | - Andrew H. Sims
- Applied Bioinformatics of Cancer, Edinburgh Cancer Research Centre, Edinburgh, Scotland
| | - Robert B. Clarke
- Breast Biology Group, University of Manchester, Manchester, England
- * E-mail: (RC); (RL)
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ARF6-regulated endocytosis of growth factor receptors links cadherin-based adhesion to canonical Wnt signaling in epithelia. Mol Cell Biol 2013; 33:2963-75. [PMID: 23716594 DOI: 10.1128/mcb.01698-12] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Wnt signaling has an essential role in embryonic development as well as stem/progenitor cell renewal, and its aberrant activation is implicated in many diseases, including several cancers. β-Catenin is a critical component of Wnt-mediated transcriptional activation. Here we show that ARF6 activation during canonical Wnt signaling promotes the intracellular accumulation of β-catenin via a mechanism that involves the endocytosis of growth factor receptors and robust activation of extracellular signal-regulated kinase (ERK). ERK promotes casein kinase 2-mediated phosphorylation of α-catenin, leading to destabilization of the adherens junctions and a subsequent increase in cytoplasmic pools of active β-catenin and E-cadherin. ERK also phosphorylates LRP6 to amplify the Wnt transduction pathway. The aforementioned Wnt-ERK signaling pathway initiates lumen filling of epithelial cysts by promoting cell proliferation in three-dimensional cell cultures. This study elucidates a mechanism responsible for the switch in β-catenin functions in cell adhesion at the adherens junctions and Wnt-induced nuclear signaling.
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38
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Green JL, La J, Yum KW, Desai P, Rodewald LW, Zhang X, Leblanc M, Nusse R, Lewis MT, Wahl GM. Paracrine Wnt signaling both promotes and inhibits human breast tumor growth. Proc Natl Acad Sci U S A 2013; 110:6991-6. [PMID: 23559372 PMCID: PMC3637696 DOI: 10.1073/pnas.1303671110] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Wnt signaling in mouse mammary development and tumorigenesis has been heavily studied and characterized, but its role in human breast cancer remains elusive. Although Wnt inhibitors are in early clinical development, it is unclear whether they will be of therapeutic benefit to breast cancer patients, and subsequently, to which ones. To address this, we generated a panel of Wnt reporting human breast cancer cell lines and identified a previously unrecognized enrichment for the ability to respond to Wnt in the basal B or claudin-low subtype, which has a poor prognosis and no available targeted therapies. By co-injecting Wnt3A expressing human mammary fibroblasts with human breast cancer cell lines into mouse mammary fat pads, we showed that elevated paracrine Wnt signaling was correlated with accelerated tumor growth. Using this heterotypic system and a dual lentiviral reporter system that enables simultaneous real-time measurement of both Wnt-responsive cells and bulk tumor cells, we analyzed the outcome of elevated Wnt signaling in patient-derived xenograft (PDX) models. Interestingly, the PDX models exhibited responses not observed in the cell lines analyzed. Exogenous WNT3A promoted tumor growth in one human epidermal growth factor receptor 2-overexpressing PDX line but inhibited growth in a second PDX line obtained from a patient with triple-negative breast cancer. Tumor suppression was associated with squamous differentiation in the latter. Thus, our work suggests that paracrine Wnt signaling can either fuel or repress the growth of human breast cancers depending on yet to be determined aspects of the molecular pathways they express.
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Affiliation(s)
- Jennifer L. Green
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037
- Department of Developmental Biology and
- Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305; and
| | - Justin La
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037
| | - Kyu W. Yum
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037
| | - Payal Desai
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037
| | - Luo-Wei Rodewald
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037
| | - Xiaomei Zhang
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030
| | - Mathias Leblanc
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037
| | - Roeland Nusse
- Department of Developmental Biology and
- Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305; and
| | - Michael T. Lewis
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030
| | - Geoffrey M. Wahl
- Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037
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Arias-Romero LE, Villamar-Cruz O, Huang M, Hoeflich KP, Chernoff J. Pak1 kinase links ErbB2 to β-catenin in transformation of breast epithelial cells. Cancer Res 2013; 73:3671-82. [PMID: 23576562 DOI: 10.1158/0008-5472.can-12-4453] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
p21-Activated kinase-1 (Pak1) is frequently upregulated in human breast cancer and is required for transformation of mammary epithelial cells by ErbB2. Here, we show that loss of Pak1, but not the closely related Pak2, leads to diminished expression of β-catenin and its target genes. In MMTV-ErbB2 transgenic mice, loss of Pak1 prolonged survival, and mammary tissues of such mice showed loss of β-catenin. Expression of a β-catenin mutant bearing a phospho-mimetic mutation at Ser 675, a specific Pak1 phosphorylation site, restored transformation to ErbB2-positive, Pak1-deficient mammary epithelial cells. Mice bearing xenografts of ErbB2-positive breast cancer cells showed tumor regression when treated with small-molecule inhibitors of Pak or β-catenin, and combined inhibition by both agents was synergistic. These data delineate a signaling pathway from ErbB2 to Pak to β-catenin that is required for efficient transformation of mammary epithelial cells, and suggest new therapeutic strategies in ErbB2-positive breast cancer.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Apoptosis/genetics
- Blotting, Western
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/prevention & control
- Cell Line
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Cell Survival/genetics
- Cell Transformation, Neoplastic/drug effects
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/metabolism
- Dose-Response Relationship, Drug
- Epithelial Cells/drug effects
- Epithelial Cells/metabolism
- Humans
- Mice
- Mice, Inbred ICR
- Mice, Knockout
- Mice, SCID
- Mice, Transgenic
- Pyrazoles/pharmacology
- Pyrroles/pharmacology
- RNA Interference
- Receptor, ErbB-2/genetics
- Receptor, ErbB-2/metabolism
- Xenograft Model Antitumor Assays
- beta Catenin/genetics
- beta Catenin/metabolism
- p21-Activated Kinases/genetics
- p21-Activated Kinases/metabolism
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Affiliation(s)
- Luis E Arias-Romero
- Cancer Biology Program and Department of Pathology, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.
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Watanabe K, Fallahi M, Dai X. Chromatin effector Pygo2 regulates mammary tumor initiation and heterogeneity in MMTV-Wnt1 mice. Oncogene 2013; 33:632-42. [PMID: 23334328 PMCID: PMC3913260 DOI: 10.1038/onc.2012.620] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 11/20/2012] [Accepted: 11/24/2012] [Indexed: 12/12/2022]
Abstract
Little is known about chromatin mechanisms that regulate tumor-initiating cells that are proposed to be responsible for tumor recurrence and relapse. We have previously shown that Pygopus 2 (Pygo2), a chromatin effector and context-dependent Wnt signaling co-activator, regulates mammary gland development by expanding epithelial stem/progenitor cells. However, the role of Pygo2 in mammary tumorigenesis in vivo remains to be addressed. In this study, we show that epithelia-specific ablation of Pygo2 in MMTV-Wnt1 transgenic mice results in delayed mammary ductal elongation, but the hyperbranching phenotype, aberrant accumulation of stem/progenitor-like cells, and canonical Wnt signaling output are largely unaffected. Chronic loss of Pygo2 significantly delays mammary tumor onset in MMTV-Wnt1 females, whereas acute deletion of Pygo2 in MMTV-Wnt1 tumor cells leads to a significant decrease in their tumor initiating capability upon transplantation. Finally, we provide evidence supporting a role for Pygo2 in modulating the lineage potential of MMTV-Wnt1 tumor initiating cells. Collectively, our results suggest that Pygo2 acts at a step downstream of mammary stem cell accumulation to facilitate transformation, and that it regulates the tumor initiating capacity and lineage preference of the already transformed mammary cells, in MMTV-Wnt1 mice. These findings offer valuable insights into our understanding of the molecular basis of heterogeneity within breast tumors.
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Affiliation(s)
- K Watanabe
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, CA, USA
| | - M Fallahi
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, CA, USA
| | - X Dai
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, CA, USA
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Abstract
By contrast with developmental epithelial-mesenchymal transition (EMT), where epithelial characteristics undergo transformation to a mesenchymal-like phenotype in a coordinated fashion, oncogenic EMT occurs in the context of unpredictable genetic changes present in the tumour cells, as well as an abnormal tumour microenvironment. Therefore, a partial form of EMT has been proposed as variably participating in the establishment of invasive phenotype in different types of breast carcinoma, in keeping with their morphological and phenotypical diversity. A complex network of signalling pathways and transcription factors appears responding to various growth factors and cytokines released by stromal and neoplastic elements, endowing the system with abundant regulatory opportunities. The process of EMT is largely elusive in histopathological preparations, prompting doubts regarding its significance in tumour progression. This might be related to the presumed focal occurrence of EMT in the majority of tumours. Detailed topological studies might facilitate understanding of the orchestration of events taking place in vivo. Even more importantly, clinical correlations can be endeavoured and, in parallel with advancement in molecular pathology, a contribution to taxonomy refinement can be envisaged.
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Affiliation(s)
- Ioannis Roxanis
- Department of Cellular Pathology, Oxford University Hospitals and NIHR Biomedical Research Centre Oxford, John Radcliffe Hospital, Headley Way, Headington, Oxford OX3 9DU, UK.
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42
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Preet R, Mohapatra P, Das D, Satapathy SR, Choudhuri T, Wyatt MD, Kundu CN. Lycopene synergistically enhances quinacrine action to inhibit Wnt-TCF signaling in breast cancer cells through APC. Carcinogenesis 2012; 34:277-86. [PMID: 23129580 DOI: 10.1093/carcin/bgs351] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
We previously reported that quinacrine (QC) has anticancer activity against breast cancer cells. Here, we examine the mechanism of action of QC and its ability to inhibit Wnt-TCF signaling in two independent breast cancer cell lines. QC altered Wnt-TCF signaling components by increasing the levels of adenomatous polyposis coli (APC), DAB2, GSK-3β and axin and decreasing the levels of β-catenin, p-GSK3β (ser 9) and CK1. QC also reduced the activity of the Wnt transcription factor TCF/LEF and its downstream targets cyclin D1 and c-MYC. Using a luciferase-based Wnt-TCF transcription factor assay, it was shown that APC levels were inversely associated with TCF/LEF activity. Induction of apoptosis and DNA damage was observed after treatment with QC, which was associated with increased expression of APC. The effects induced by QC depend on APC because the inhibition of Wnt-TCF signaling by QC is lost in APC-knockdown cells, and consequently, the extent of apoptosis and DNA damage caused by QC is reduced compared with parental cells. Because we previously showed that QC inhibits topoisomerase, we examined the effect of another topoisomerase inhibitor, etoposide, on Wnt signaling. Interestingly, etoposide treatment also reduced TCF/LEF activity, β-catenin and cyclin D1 levels commensurate with induction of DNA damage and apoptosis. Lycopene, a plant-derived antioxidant, synergistically increased QC activity and inhibited Wnt-TCF signaling in cancer cells without affecting the MCF-10A normal breast cell line. Collectively, the data suggest that QC-mediated Wnt-TCF signal inhibition depends on APC and that the addition of lycopene synergistically increases QC anticancer activity.
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Affiliation(s)
- Ranjan Preet
- Cancer Biology Laboratory, Department of KIIT School of Biotechnology, Campus-11, KIIT University, Patia, Bhubaneswar, Orissa 751024, India
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