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González-Callejo P, García-Astrain C, Herrero-Ruiz A, Henriksen-Lacey M, Seras-Franzoso J, Abasolo I, Liz-Marzán LM. 3D Bioprinted Tumor-Stroma Models of Triple-Negative Breast Cancer Stem Cells for Preclinical Targeted Therapy Evaluation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27151-27163. [PMID: 38764168 PMCID: PMC11145592 DOI: 10.1021/acsami.4c04135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/08/2024] [Accepted: 05/08/2024] [Indexed: 05/21/2024]
Abstract
Breast cancer stem cells (CSCs) play a pivotal role in therapy resistance and tumor relapse, emphasizing the need for reliable in vitro models that recapitulate the complexity of the CSC tumor microenvironment to accelerate drug discovery. We present a bioprinted breast CSC tumor-stroma model incorporating triple-negative breast CSCs (TNB-CSCs) and stromal cells (human breast fibroblasts), within a breast-derived decellularized extracellular matrix bioink. Comparison of molecular signatures in this model with different clinical subtypes of bioprinted tumor-stroma models unveils a unique molecular profile for artificial CSC tumor models. We additionally demonstrate that the model can recapitulate the invasive potential of TNB-CSC. Surface-enhanced Raman scattering imaging allowed us to monitor the invasive potential of tumor cells in deep z-axis planes, thereby overcoming the depth-imaging limitations of confocal fluorescence microscopy. As a proof-of-concept application, we conducted high-throughput drug testing analysis to assess the efficacy of CSC-targeted therapy in combination with conventional chemotherapeutic compounds. The results highlight the usefulness of tumor-stroma models as a promising drug-screening platform, providing insights into therapeutic efficacy against CSC populations resistant to conventional therapies.
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Affiliation(s)
| | - Clara García-Astrain
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Barcelona 08035, Spain
| | - Ada Herrero-Ruiz
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Barcelona 08035, Spain
| | - Malou Henriksen-Lacey
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Barcelona 08035, Spain
| | - Joaquín Seras-Franzoso
- Centro
de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Barcelona 08035, Spain
- Clinical
Biochemistry, Drug Delivery and Therapy Group (CB-DDT), Vall d’Hebron
Research Institute (VHIR), Vall d’Hebron
University Hospital, Barcelona 08035, Spain
- Department
of Genetics and Microbiology, Universitat
Autònoma de Barcelona (UAB), Bellaterra 08193, Spain
| | - Ibane Abasolo
- Centro
de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Barcelona 08035, Spain
- Clinical
Biochemistry, Drug Delivery and Therapy Group (CB-DDT), Vall d’Hebron
Research Institute (VHIR), Vall d’Hebron
University Hospital, Barcelona 08035, Spain
- Clinical
Biochemistry Service, Vall d’Hebron
University Hospital, Barcelona 08035, Spain
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Barcelona 08035, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao 48009, Spain
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Wang SSY. Advancing biomarker development for diagnostics and therapeutics using solid tumour cancer stem cell models. TUMORI JOURNAL 2024; 110:10-24. [PMID: 36964664 DOI: 10.1177/03008916231158411] [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] [Indexed: 03/26/2023]
Abstract
The cancer stem cell model hopes to explain solid tumour carcinogenesis, tumour progression and treatment failure in cancers. However, the cancer stem cell model has led to minimal clinical translation to cancer stem cell biomarkers and targeted therapies in solid tumours. Many reasons underlie the challenges, one being the imperfect understanding of the cancer stem cell model. This review hopes to spur further research into clinically translatable cancer stem cell biomarkers through first defining cancer stem cells and their associated models. With a better understanding of these models there would be a development of more accurate biomarkers. Making the clinical translation of biomarkers into diagnostic tools and therapeutic agents more feasible.
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Schwarztrauber M, Edwards N, Hiryak J, Chandrasekaran R, Wild J, Bommareddy A. Antitumor and chemopreventive role of major phytochemicals against breast cancer development. Nat Prod Res 2023:1-21. [PMID: 37646820 DOI: 10.1080/14786419.2023.2251167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 07/20/2023] [Accepted: 08/17/2023] [Indexed: 09/01/2023]
Abstract
Breast cancer continues to be one of the most commonly diagnosed cancers around the world. Despite the decrease in mortality, there has been a steady increase in its incidence. There is much evidence that naturally occurring phytochemicals could prove to be safer alternatives aimed at prevention and development of breast cancer. In the present review, we discuss important phytochemicals, namely capsaicin, alpha-santalol and diallyl trisulphide that are shown to have chemopreventive and anti-tumour properties against breast cancer development. We examined current knowledge of their bioavailability, safety and modulation of molecular mechanisms including their ability to induce apoptotic cell death, promote cell cycle arrest, and inhibit cellular proliferation in different breast cancer cell lines and in vivo models. This review emphasises the importance of these naturally occurring phytochemicals and their potential of becoming therapeutic options in the arsenal against breast cancer development provided further scientific and clinical validation.
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Affiliation(s)
| | - Nathaniel Edwards
- Nesbitt School of Pharmacy, Wilkes University, Wilkes-Barre, PA, USA
| | - James Hiryak
- Nesbitt School of Pharmacy, Wilkes University, Wilkes-Barre, PA, USA
| | - Ritesh Chandrasekaran
- Department of Biomedical Science, Charles E Schmidt College of Medicine, FL Atlantic University, Boca Raton, FL, USA
| | - Jayson Wild
- Department of Biomedical Science, Charles E Schmidt College of Medicine, FL Atlantic University, Boca Raton, FL, USA
| | - Ajay Bommareddy
- Department of Biomedical Science, Charles E Schmidt College of Medicine, FL Atlantic University, Boca Raton, FL, USA
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4
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He ZY, Zhuo RG, Yang SP, Zhou P, Xu JY, Zhou J, Wu SG. CircNCOR1 regulates breast cancer radiotherapy efficacy by regulating CDK2 via hsa-miR-638 binding. Cell Signal 2023:110787. [PMID: 37391048 DOI: 10.1016/j.cellsig.2023.110787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/19/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
BACKGROUND Despite aggressive local and regional therapy, triple-negative breast cancer (TNBC) is characterized by an increased risk of locoregional recurrence. RNA-sequencing data has identified a large number of circRNAs in primary breast cancers, but the role of specific circRNAs in regulating the radiosensitivity of TNBC is not fully understood. This research aimed to investigate the function of circNCOR1 in the radiosensitivity of TNBC. METHODS CircRNA high-throughput sequencing was conducted on two breast cancer MDA-MB-231 and BT549 cell lines after 6 Gy radiation. The relationship between circNCOR1, hsa-miR-638, and CDK2 was determined by RNA immunoprecipitation (RIP), FISH and luciferase assays. The proliferation and apoptosis of breast cancer cells were measured by CCK8, flow cytometry, colony formation assays, and western blot. RESULTS Differential expression of circRNAs was closely related to the proliferation of breast cancer cells after irradiation. Overexpression of circNCOR1 facilitated the proliferation of MDA-MB-231 and BT549 cells and impaired the radiosensitivity of breast cancer cells. Additionally, circNCOR1 acted as a sponge for hsa-miR-638 to regulate the downstream target protein CDK2. Overexpression of hsa-miR-638 promoted apoptosis of breast cancer cells, while overexpression of CDK2 alleviated apoptosis and increased proliferation and clonogenicity. In vivo, overexpression of circNCOR1 partially reversed radiation-induced loosening of tumor structures and enhanced tumor cell proliferation. CONCLUSION Our results demonstrated that circNCOR1 bounds to hsa-miR-638 and targets CDK2, thereby regulating the radiosensitivity of TNBC.
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Affiliation(s)
- Zhen-Yu He
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, People's Republic of China
| | - Ren-Gong Zhuo
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen 361102, People's Republic of China
| | - Shi-Ping Yang
- Department of Radiation Oncology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, People's Republic of China
| | - Ping Zhou
- Department of Radiation Oncology, Xiamen Cancer Center, Xiamen Key Laboratory of Radiation Oncology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, People's Republic of China
| | - Jing-Ying Xu
- Department of Obstetrics and Gynecology, Xiamen Cancer Center, Xiamen Key Laboratory of Radiation Oncology, The First Affiliated Hospital of Xiamen University, Xiamen 361003, People's Republic of China
| | - Juan Zhou
- Department of Obstetrics and Gynecology, Xiamen Cancer Center, Xiamen Key Laboratory of Radiation Oncology, The First Affiliated Hospital of Xiamen University, Xiamen 361003, People's Republic of China.
| | - San-Gang Wu
- Department of Radiation Oncology, Xiamen Cancer Center, Xiamen Key Laboratory of Radiation Oncology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, People's Republic of China.
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Gheybi E, Asoodeh A, Amani J. Preparation of chitosan nanoparticle containing recombinant CD44v antigen and evaluation of its immunization capacity against breast cancer in BALB/c mice. BMC Cancer 2023; 23:134. [PMID: 36759786 PMCID: PMC9912563 DOI: 10.1186/s12885-023-10614-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
OBJECTIVE(S) Breast tumors show heterogeneity containing cancer stem cells as a small subpopulation of a tumor mass. CD44 as a cancer stem cells antigen is abnormally expressed by carcinomas of epithelial origin. Also, overexpression of CD44 variable isoforms (CD44v) is associated with malignancy in breast cancer. In the present research, our objective was to evaluate the immunogenicity of prepared nanoparticles containing a novel recombinant CD44v (rCD44v) protein in the mouse model. MATERIALS AND METHODS CD44 gene was expressed in E. coli BL21 DE3 using the pET28a-CD44 vector. The expressed rCD44v protein was purified, encapsulated into the chitosan nanoparticles, and administered to BALB/c mice. ELISA was used to evaluate the immunoglobulin levels of immunized animals. For challenge experiment, 2 × 106 4T1-CD44 tumor cells were injected subcutaneously in mice, and tumor size, necrosis, and metastases were measured. Finally, cell proliferation assay, cytokines assay, and neutralization assay of the mouse anti-rCD44v on the human breast cancer cell line were examined. RESULTS The measured size of chitosan-rCD44v nanoparticles was 146.5 nm. Recombinant CD44v encapsulated by chitosan nanoparticles increases immunological responses via the adjuvant nature of chitosan nanoparticles. In the immunized mice, IgG and IgA titers were significantly increased. Tumor growth in injection and nano-injection test groups compared with the mice control groups displayed a significant reduction (P < 0.05). A high amount of splenocytes secreting IFNγ and IL-17 was seen in immunized mice with rCD44v (P < 0.05). Furthermore, a smaller size of lung metastases compared to the control mice groups was detected. CONCLUSION The encapsulated rCD44v within the chitosan nanoparticles induced a significant immune response in mice and can establish significant protection against breast cancer. Therefore, it can be considered a vaccine candidate for breast cancer therapeutic modalities.
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Affiliation(s)
- Elaheh Gheybi
- grid.411301.60000 0001 0666 1211Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran ,grid.411301.60000 0001 0666 1211Cellular and Molecular Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran. .,Cellular and Molecular Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Jafar Amani
- grid.411521.20000 0000 9975 294XApplied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Kola P, Nagesh PKB, Roy PK, Deepak K, Reis RL, Kundu SC, Mandal M. Innovative nanotheranostics: Smart nanoparticles based approach to overcome breast cancer stem cells mediated chemo- and radioresistances. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023:e1876. [PMID: 36600447 DOI: 10.1002/wnan.1876] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/29/2022] [Accepted: 12/09/2022] [Indexed: 01/06/2023]
Abstract
The alarming increase in the number of breast cancer patients worldwide and the increasing death rate indicate that the traditional and current medicines are insufficient to fight against it. The onset of chemo- and radioresistances and cancer stem cell-based recurrence make this problem harder, and this hour needs a novel treatment approach. Competent nanoparticle-based accurate drug delivery and cancer nanotheranostics like photothermal therapy, photodynamic therapy, chemodynamic therapy, and sonodynamic therapy can be the key to solving this problem due to their unique characteristics. These innovative formulations can be a better cargo with fewer side effects than the standard chemotherapy and can eliminate the stability problems associated with cancer immunotherapy. The nanotheranostic systems can kill the tumor cells and the resistant breast cancer stem cells by novel mechanisms like local hyperthermia and reactive oxygen species and prevent tumor recurrence. These theranostic systems can also combine with chemotherapy or immunotherapy approaches. These combining approaches can be the future of anticancer therapy, especially to overcome the breast cancer stem cells mediated chemo- and radioresistances. This review paper discusses several novel theranostic systems and smart nanoparticles, their mechanism of action, and their modifications with time. It explains their relevance and market scope in the current era. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Prithwish Kola
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | | | - Pritam Kumar Roy
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - K Deepak
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Rui Luis Reis
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimaraes, Portugal
| | - Subhas C Kundu
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimaraes, Portugal
| | - Mahitosh Mandal
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
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Mebendazole Increases Anticancer Activity of Radiotherapy in Radiotherapy-Resistant Triple-Negative Breast Cancer Cells by Enhancing Natural Killer Cell-Mediated Cytotoxicity. Int J Mol Sci 2022; 23:ijms232415493. [PMID: 36555137 PMCID: PMC9779603 DOI: 10.3390/ijms232415493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/18/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Breast cancer is the most commonly diagnosed cancer worldwide and ranks first in terms of both prevalence and cancer-related mortality in women. In this study, we aimed to evaluate the anticancer effect of mebendazole (MBZ) and radiotherapy (RT) concomitant use in triple-negative breast cancer (TNBC) cells and elucidate the underlying mechanisms of action. Breast cancer mouse models and several types of breast cancer cells, including TNBC-derived RT-resistant (RT-R) MDA-MB-231 cells, were treated with MBZ and/or RT. In mice, changes in body weight, renal and liver toxicity, tumor volume, and number of lung metastases were determined. In cells, cell viability, colony formation, scratch wound healing, Matrigel invasion, and protein expression using western blotting were determined. Our findings showed that MBZ and RT combined treatment increased the anticancer effect of RT without additional toxicity. In addition, we noted that cyclin B1, PH2AX, and natural killer (NK) cell-mediated cytotoxicity increased following MBZ + RT treatment compared to unaided RT. Our results suggest that MBZ + RT have an enhanced anticancer effect in TNBC which acquires radiation resistance through blocking cell cycle progression, initiating DNA double-strand breaks, and promoting NK cell-mediated cytotoxicity.
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8
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(–)-Xanthatin as a Killer of Human Breast Cancer MCF-7 Mammosphere Cells: A Comparative Study with Salinomycin. Curr Issues Mol Biol 2022; 44:3849-3858. [PMID: 36135176 PMCID: PMC9497939 DOI: 10.3390/cimb44090264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Experimental evidence accumulated by our research group and others strongly suggests that (–)-xanthatin, a xanthanolide sesquiterpene lactone, exhibits anti-proliferative effects on human breast cancer cells (in vitro) as well as anti-tumor effects in experimental animals (in vivo). In cancer biology, it is now critically important for anti-cancer agents to selectively target cancer stem cells (CSCs) in order to overcome cancer therapeutic resistance and recurrence. However, it has not yet been established whether (–)-xanthatin abrogates the formation of breast CSCs. In the present study, we utilized chemically synthesized pure (–)-xanthatin and a culture system to obtain mammospheres from human breast cancer MCF-7 cells, which are a CSC-enriched population. We herein demonstrated for the first time that (–)-xanthatin exhibited the ability to kill mammospheres, similar to salinomycin, an established selective killer of CSCs. A possible anti-proliferative mechanism toward mammospheres by (–)-xanthatin is discussed.
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9
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Wu J, Luo D, Li S. Ovo Like Zinc Finger 2 (OVOL2) Suppresses Breast Cancer Stem Cell Traits and Correlates with Immune Cells Infiltration. BREAST CANCER: TARGETS AND THERAPY 2022; 14:211-227. [PMID: 35996562 PMCID: PMC9391936 DOI: 10.2147/bctt.s363114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 08/05/2022] [Indexed: 12/24/2022]
Affiliation(s)
- Jiafa Wu
- School of Food and Bioengineering, Henan University of Science and Technology, Luoyang, People’s Republic of China
- Correspondence: Jiafa Wu, School of Food and Bioengineering, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, People’s Republic of China, Email
| | - Dongping Luo
- The First Affiliated Hospital, Henan University of Science and Technology, Luoyang, People’s Republic of China
| | - Shengnan Li
- School of Medicine, Henan Polytechnic University, Jiaozuo, People’s Republic of China
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The combination phenotype of B-cell specific Moloney murine leukaemia virus integration site 1 (BMI1) and CD44+/CD24−/low associates with poor clinicopathological features in African patients with breast cancer. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2021.101475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Li J, Camirand A, Zakikhani M, Sellin K, Guo Y, Luan X, Mihalcioiu C, Kremer R. Parathyroid hormone‐related protein inhibition blocks triple‐negative breast cancer expansion in bone through epithelial to mesenchymal transition reversal. JBMR Plus 2021; 6:e10587. [PMID: 35720668 PMCID: PMC9189913 DOI: 10.1002/jbm4.10587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 11/10/2022] Open
Abstract
Parathyroid hormone‐related protein (PTHrP) plays a major role in skeletal metastasis but its action mechanism has not been fully defined. We previously demonstrated the crucial importance of PTHrP in promoting mammary tumor initiation, growth, and metastasis in a mouse model with a mammary epithelium‐targeted Pthlh gene ablation. We demonstrate here a novel mechanism for bone invasion involving PTHrP induction of epithelial to mesenchymal transition (EMT) and cancer stem cells (CSCs) regulation. Clustered regularly interspaced short palindromic repeats (CRISPR)‐mediated Pthlh gene ablation was used to study EMT markers, phenotype, and invasiveness in two triple‐negative breast cancer (TNBC) cell types (established MDA‐MB‐231 and patient‐derived PT‐TNBC cells). In vitro, Pthlh ablation in TNBC cells reduced EMT markers, mammosphere‐forming ability, and CD44high/CD24low cells ratio. In vivo, cells were injected intratibially into athymic nude mice, and therapeutic treatment with our anti‐PTHrP blocking antibody was started 2 weeks after skeletal tumors were established. In vivo, compared to control, lytic bone lesion from Pthlh ‐ablated cells decreased significantly over 2 weeks by 27% for MDA‐MB‐231 and by 75% for PT‐TNBC‐injected mice (p < 0.001). Micro‐CT (μCT) analyses also showed that antibody therapy reduced bone lytic volume loss by 52% and 48% for non‐ablated MDA‐MB‐231 and PT‐TNBC, respectively (p < 0.05). Antibody therapy reduced skeletal tumor burden by 45% and 87% for non‐ablated MDA‐MB‐231 and PT‐TNBC, respectively (p < 0.002) and caused a significant decrease of CSC/EMT markers ALDH1, vimentin, and Slug, and an increase in E‐cadherin in bone lesions. We conclude that PTHrP is a targetable EMT molecular driver and suggest that its pharmacological blockade can provide a potential therapeutic approach against established TNBC‐derived skeletal lesions. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Jiarong Li
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
| | - Anne Camirand
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
| | - Mahvash Zakikhani
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
| | - Karine Sellin
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
| | - Yubo Guo
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
- Third Affiliated Hospital Beijing University of Chinese Medicine Beijing China
| | - XiaoRui Luan
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
- Department of Genetics, School of Medicine Zhejiang University Hangzhou China
| | - Catalin Mihalcioiu
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
| | - Richard Kremer
- Centre for Translational Biology McGill University Health Centre, 1001 Décarie Blvd, EM1.3229 Montréal QC Canada
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12
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Choi HS, Ko YS, Jin H, Kang KM, Ha IB, Jeong H, Song HN, Kim HJ, Jeong BK. Anticancer Effect of Benzimidazole Derivatives, Especially Mebendazole, on Triple-Negative Breast Cancer (TNBC) and Radiotherapy-Resistant TNBC In Vivo and In Vitro. Molecules 2021; 26:molecules26175118. [PMID: 34500557 PMCID: PMC8433818 DOI: 10.3390/molecules26175118] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/31/2022] Open
Abstract
In this study, we aimed to evaluate the anticancer effect of benzimidazole derivatives on triple-negative breast cancer (TNBC) and investigate its underlying mechanism of action. Several types of cancer and normal breast cells including MDA-MB-231, radiotherapy-resistant (RT-R) MDA-MB-231, and allograft mice were treated with six benzimidazole derivatives including mebendazole (MBZ). Cells were analyzed for viability, colony formation, scratch wound healing, Matrigel invasion, cell cycle, tubulin polymerization, and protein expression by using Western blotting. In mice, liver and kidney toxicity, changes in body weight and tumor volume, and incidence of lung metastasis were analyzed. Our study showed that MBZ significantly induced DNA damage, cell cycle arrest, and downregulation of cancer stem cell markers CD44 and OCT3/4, and cancer progression-related ESM-1 protein expression in TNBC and RT-R-TNBC cells. In conclusion, MBZ has the potential to be an effective anticancer agent that can overcome treatment resistance in TNBC.
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Affiliation(s)
- Hoon Sik Choi
- Department of Radiation Oncology, Gyeongsang National University Changwon Hospital, Gyeongsang National University College of Medicine, Jinju 52727, Korea; (H.S.C.); (K.M.K.)
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju 52727, Korea
| | - Young Shin Ko
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Department of Pharmacology, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Hana Jin
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Department of Pharmacology, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Ki Mun Kang
- Department of Radiation Oncology, Gyeongsang National University Changwon Hospital, Gyeongsang National University College of Medicine, Jinju 52727, Korea; (H.S.C.); (K.M.K.)
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju 52727, Korea
| | - In Bong Ha
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju 52727, Korea
- Department of Radiation Oncology, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Hojin Jeong
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju 52727, Korea
- Department of Radiation Oncology, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Haa-Na Song
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju 52727, Korea
- Division of Hemato-Oncology, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Hye Jung Kim
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Department of Pharmacology, Gyeongsang National University College of Medicine, Jinju 52727, Korea
- Correspondence: (H.J.K.); (B.K.J.); Tel.: +82-55-750-9200 (H.J.K.); +82-55-750-9217 (B.K.J.)
| | - Bae Kwon Jeong
- Institute of Health Science, Gyeongsang National University, Jinju 52727, Korea; (Y.S.K.); (H.J.); (I.B.H.); (H.J.); (H.-N.S.)
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju 52727, Korea
- Department of Radiation Oncology, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju 52727, Korea
- Correspondence: (H.J.K.); (B.K.J.); Tel.: +82-55-750-9200 (H.J.K.); +82-55-750-9217 (B.K.J.)
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Alantolactone inhibits cervical cancer progression by downregulating BMI1. Sci Rep 2021; 11:9251. [PMID: 33927214 PMCID: PMC8085045 DOI: 10.1038/s41598-021-87781-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 03/10/2021] [Indexed: 01/31/2023] Open
Abstract
Cervical cancer is the second most common cancer in women. Despite advances in cervical cancer therapy, tumor recurrence and metastasis remain the leading causes of mortality. High expression of BMI1 is significantly associated with poor tumor differentiation, high clinical grade, and poor prognosis of cervical cancer, and is an independent prognostic factor in cervical carcinoma. Alantolactone (AL), a sesquiterpene lactone, exhibits potent anti-inflammatory and anticancer activities. In this paper, we investigated the mechanism of AL in reducing the proliferation, migration, and invasion of HeLa and SiHa cervical cancer cells as well as its promotion of mitochondrial damage and autophagy. BMI1 silencing decreased epithelial-mesenchymal transformation-associated proteins and increased autophagy-associated proteins in HeLa cells. These effects were reversed by overexpression of BMI1 in HeLa cells. Thus, BMI1 expression is positively correlated with invasion and negatively correlated with autophagy in HeLa cells. Importantly, AL decreased the weight, volume, and BMI1 expression in HeLa xenograft tumors. Furthermore, the structure of BMI1 and target interaction of AL were virtually screened using the molecular docking program Autodock Vina; AL decreased the expression of N-cadherin, vimentin, and P62 and increased the expression of LC3B and Beclin-1 in xenograft tumors. Finally, expression of BMI1 increased the phosphorylation of STAT3, which is important for cell proliferation, survival, migration, and invasion. Therefore, we suggest that AL plays a pivotal role in inhibiting BMI1 in the tumorigenesis of cervical cancer and is a potential therapeutic agent for cervical cancer.
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Jiang B, Zhu H, Tang L, Gao T, Zhou Y, Gong F, Tan Y, Xie L, Wu X, Li Y. Apatinib Inhibits Stem Properties and Malignant Biological Behaviors of Breast Cancer Stem Cells by Blocking Wnt/β-catenin Signal Pathway Through Down-regulating LncRNA ROR. Anticancer Agents Med Chem 2021; 22:1723-1734. [PMID: 33845750 DOI: 10.2174/1871520621666210412103849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 02/01/2021] [Accepted: 02/21/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cancer stem cells could influence tumor recurrence and metastasis. OBJECTIVE To develop a new effective treatment modality targeting breast cancer stem cells (BCSCs), and to explore the role of Apatinib in BCSCs. METHODS BCSCs were isolated from MDA-MB-231 cells by immune magnetic beads method. BCSCs were treated with Apatinib, lentiviral plasmids (lncRNA ROR) and iCRT-3 (Wnt pathway inhibitors). Viability, colony numbers, sphere numbers, apoptosis, migration, invasion of BCSCs were detected by MTT, colony formation, tumor sphere, flow cytometry, wound-healing, transwell assays, respectively. The expressions of markers (ABCG2, CD44, CD90, and CD24), epithelial-mesenchymal transition (EMT)-related molecules (E-cadherin, N-cadherin, Vimentin, MMP-2, MMP-9), and Wnt/β-catenin pathway-related proteins (Wnt3a, Wnt5a, β-catenin) in breast cancer stem cells were determined by performing Western blot and qRT-PCR analysis. RESULTS Apatinib decreased the viability and colony numbers of BCSCs in a concentration-dependent manner, and it also reduced sphere numbers, suppressed migration, invasion and lncRNA ROR expression, and induced apoptosis of BCSCs. However, these results were partially reversed by lncRNA ROR overexpression. Apatinib suppressed stem property, EMT process and Wnt/β-catenin pathway in BCSCs, which was partially reversed by lncRNA ROR overexpression. Moreover, lncRNA ROR overexpression increased the colony and sphere numbers, and promoted the cell viability, apoptosis inhibition, migration and invasion of BCSCs, but these effects were partially reversed by iCRT-3. LncRNA ROR overexpression increased the stem property, EMT process and Wnt/β-catenin pathway, which were partially counteracted by iCRT-3. CONCLUSION Apatinib inhibited stem property and malignant biological behaviors of BCSCs by blocking Wnt/β-catenin signal pathway through down-regulating lncRNA ROR.
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Affiliation(s)
- Baohong Jiang
- Department of Pharmacy, The First Affiliated Hospital, University of South China. China
| | - Hongbo Zhu
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Liting Tang
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Ting Gao
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Yu Zhou
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Fuqiang Gong
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Yeru Tan
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Liming Xie
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Xiaoping Wu
- Department of Medical Oncology, The First Affiliated Hospital, University of South China. China
| | - Yuehua Li
- Department of Medical Oncology, The First Affiliated Hospital, University of South China, No.69, Chuanshan Road, Hengyang, Hunan Province, 421001. China
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15
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Zeng X, Liu C, Yao J, Wan H, Wan G, Li Y, Chen N. Breast cancer stem cells, heterogeneity, targeting therapies and therapeutic implications. Pharmacol Res 2020; 163:105320. [PMID: 33271295 DOI: 10.1016/j.phrs.2020.105320] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 02/07/2023]
Abstract
Both hereditary and sporadic breast cancer are suggested to develop from a stem cell subcomponent retaining most key stem cell properties but with dysregulation of self-renewal pathways, which drives tumorigenic differentiation and cellular heterogeneity. Cancer stem cells (CSCs), characterized by their self-renewal and differentiation potential, have been reported to contribute to chemo-/radio-resistance and tumor initiation and to be the main reason for the failure of current therapies in breast cancer and other CSC-bearing cancers. Thus, CSC-targeted therapies, such as those inducing CSC apoptosis and differentiation, inhibiting CSC self-renewal and division, and targeting the CSC niche to combat CSC activity, are needed and may become an important component of multimodal treatment. To date, the understanding of breast cancer has been extended by advances in CSC biology, providing more accurate prognostic and predictive information upon diagnosis. Recent improvements have enhanced the prospect of targeting breast cancer stem cells (BCSCs), which has shown promise for increasing the breast cancer remission rate. However, targeted therapy for breast cancer remains challenging due to tumor heterogeneity. One major challenge is determining the CSC properties that can be exploited as therapeutic targets. Another challenge is identifying suitable BCSC biomarkers to assess the efficacy of novel BCSC-targeted therapies. This review focuses mainly on the characteristics of BCSCs and the roles of BCSCs in the formation, maintenance and recurrence of breast cancer; self-renewal signaling pathways in BCSCs; the BCSC microenvironment; potential therapeutic targets related to BCSCs; and current therapies and clinical trials targeting BCSCs.
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Affiliation(s)
- Xiaobin Zeng
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, PR China; Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Medicine School of Shenzhen University, Shenzhen, Guangdong Province, 518037, PR China
| | - Chengxiao Liu
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, PR China
| | - Jie Yao
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, PR China
| | - Haoqiang Wan
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, PR China; Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Medicine School of Shenzhen University, Shenzhen, Guangdong Province, 518037, PR China; Department of Gastroenterology, (Longhua Branch), Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, Guangdong Province, 518120, PR China
| | - Guoqing Wan
- Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201318, PR China
| | - Yingpeng Li
- Department of Gastroenterology, (Longhua Branch), Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, Guangdong Province, 518120, PR China.
| | - Nianhong Chen
- Center Lab of Longhua Branch and Department of Infectious Disease, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, 518020, PR China; Department of Cell Biology & University of Pittsburgh Cancer Institute, School of Medicine, University of Pittsburgh, PA, 15261, USA; Laboratory of Signal Transduction, Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, 10065, USA.
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16
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Solvent fractions of selected Ethiopian medicinal plants used in traditional breast cancer treatment inhibit cancer stem cells in a breast cancer cell line. BMC Complement Med Ther 2020; 20:366. [PMID: 33238963 PMCID: PMC7687706 DOI: 10.1186/s12906-020-03154-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 11/10/2020] [Indexed: 12/26/2022] Open
Abstract
Background The incidence and mortality of breast cancer in women is increasing worldwide. Breast cancer contains a subpopulation of cells known as cancer stem cells (CSCs). The CSCs are believed to be responsible for chemotherapeutic resistance and are also involved in tumor initiation, progression, evolution, and metastasis to distant sites. The present study aimed to investigate the anti-CSC potential of selected Ethiopian medicinal plants traditionally used for breast cancer treatment. Methods The solvent fractions of three medicinal plants (the ethyl acetate fraction of Vernonia leopoldi, the aqueous fraction of Sideroxylon oxyacanthum, and the chloroform fraction of Clematis simensis) resulting from the methanolic crude extracts were selected based on their previously demonstrated cytotoxic effects on breast cancer cell lines. The effect of these solvent fractions on the status of the cancer stem cell subpopulation of the JIMT-1 cell line was assessed by flow cytometric evaluation of the proportion of aldehyde dehydrogenase positive cells and by measuring colony forming efficiency in a serum-free soft agar assay after treatment. Effects on cell migration using a wound healing assay and on tumor necrosis factor-α-induced translocation of nuclear factor-kappa B to the cell nucleus were also investigated. Results The solvent fractions showed a dose-dependent reduction in the aldehyde dehydrogenase positive subpopulation of JIMT-1 cells. The chloroform fraction of C. simensis (80 μg/mL) completely blocked colony formation of JIMT-1 cells. The wound healing assay showed that all fractions significantly reduced cell migration. The ethyl acetate fraction of V. leopoldi (0.87 μg/mL) significantly inhibited tumor necrosis factor-α-induced nuclear factor-kappa B translocation to the nucleus. Conclusion The solvent fractions of the medicinal plants showed desirable activities against breast cancer stem cells in the JIMT-1 cell line, which warrants further studies.
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17
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Erpel F, Mateos R, Pérez-Jiménez J, Pérez-Correa JR. Phlorotannins: From isolation and structural characterization, to the evaluation of their antidiabetic and anticancer potential. Food Res Int 2020; 137:109589. [PMID: 33233195 DOI: 10.1016/j.foodres.2020.109589] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/19/2020] [Accepted: 07/21/2020] [Indexed: 12/12/2022]
Abstract
Phlorotannins are phenolic characteristic compounds of brown seaweeds that are only constituted by phloroglucinol (1,3,5-trihydroxybenzene). They are chain- and net-like structures of diverse molecular weights and have been widely identified in Ecklonia, Eisenia, and Ishige species. Since the time they were discovered in the '70 s, phlorotannins have been suggested as a main factor responsible for the antimicrobial activities attributed to algae extracts. Currently, cumulative in vitro and in vivo research evidence the diverse bioactivities of phlorotannin extracts -such as antidiabetic, anticancer, and antibacterial- pointing out their potential pharmacological and food applications. However, metabolomic studies and clinical trials are scarce, and thus many phlorotannins health-beneficial effects in humans are not yet confirmed. This article reviews recent studies assessing the antidiabetic and anticancer activities of phlorotannins. Particularly, their potential to prevent and control the progression of these non-communicable diseases is discussed, considering in vitro and animal studies, as well as clinical interventions. In contrast to other approaches, we only included investigations with isolated phlorotannins or phlorotannin-rich extracts. Thus, phlorotannin extraction, purification and characterization procedures are briefly addressed. Overall, although considerable research showing the antidiabetic and anticancer potential of phlorotannins is now available, further clinical trials are still necessary to conclusively demonstrate the efficacy of these compounds as adjuvants for diabetes and cancer prevention or treatment.
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Affiliation(s)
- Fernanda Erpel
- Chemical and Bioprocess Engineering Department, School of Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, P.O. Box 306, Santiago 7820436, Chile.
| | - Raquel Mateos
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Calle José Antonio Novais, 10, Madrid 28040, Spain.
| | - Jara Pérez-Jiménez
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Calle José Antonio Novais, 10, Madrid 28040, Spain.
| | - José Ricardo Pérez-Correa
- Chemical and Bioprocess Engineering Department, School of Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, P.O. Box 306, Santiago 7820436, Chile.
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18
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Bridges AE, Ramachandran S, Pathania R, Parwal U, Lester A, Rajpurohit P, Morera DS, Patel N, Singh N, Korkaya H, Manicassamy S, Prasad PD, Lokeshwar VB, Lokeshwar BL, Ganapathy V, Thangaraju M. RAD51AP1 Deficiency Reduces Tumor Growth by Targeting Stem Cell Self-Renewal. Cancer Res 2020; 80:3855-3866. [PMID: 32665355 DOI: 10.1158/0008-5472.can-19-3713] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/31/2020] [Accepted: 07/09/2020] [Indexed: 11/16/2022]
Abstract
RAD51-associated protein 1 (RAD51AP1) plays an integral role in homologous recombination by activating RAD51 recombinase. Homologous recombination is essential for preserving genome integrity and RAD51AP1 is critical for D-loop formation, a key step in homologous recombination. Although RAD51AP1 is involved in maintaining genomic stability, recent studies have shown that RAD51AP1 expression is significantly upregulated in human cancers. However, the functional role of RAD51AP1 in tumor growth and the underlying molecular mechanism(s) by which RAD51AP1 regulates tumorigenesis have not been fully understood. Here, we use Rad51ap1-knockout mice in genetically engineered mouse models of breast cancer to unravel the role of RAD51AP1 in tumor growth and metastasis. RAD51AP1 gene transcript was increased in both luminal estrogen receptor-positive breast cancer and basal triple-negative breast cancer, which is associated with poor prognosis. Conversely, knockdown of RAD51AP1 (RADP51AP1 KD) in breast cancer cell lines reduced tumor growth. Rad51ap1-deficient mice were protected from oncogene-driven spontaneous mouse mammary tumor growth and associated lung metastasis. In vivo, limiting dilution studies provided evidence that Rad51ap1 plays a critical role in breast cancer stem cell (BCSC) self-renewal. RAD51AP1 KD improved chemotherapy and radiotherapy response by inhibiting BCSC self-renewal and associated pluripotency. Overall, our study provides genetic and biochemical evidences that RAD51AP1 is critical for tumor growth and metastasis by increasing BCSC self-renewal and may serve as a novel target for chemotherapy- and radiotherapy-resistant breast cancer. SIGNIFICANCE: This study provides in vivo evidence that RAD51AP1 plays a critical role in breast cancer growth and metastasis by regulating breast cancer stem cell self-renewal.
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Affiliation(s)
- Allison E Bridges
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia
| | - Sabarish Ramachandran
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Rajneesh Pathania
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Epigenetics & Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Utkarsh Parwal
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia
| | - Adrienne Lester
- Depatment of Undergraduate Health Professions, College of Allied Health Sciences, Augusta University, Augusta, Georgia
| | - Pragya Rajpurohit
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia
| | - Daley S Morera
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia
| | - Nikhil Patel
- Department of Pathology, Augusta University, Augusta, Georgia
| | - Nagendra Singh
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Georgia Cancer Center Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Hasan Korkaya
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Georgia Cancer Center Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Santhakumar Manicassamy
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Georgia Cancer Center Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Puttur D Prasad
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Georgia Cancer Center Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Vinata B Lokeshwar
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Georgia Cancer Center Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Bal L Lokeshwar
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Georgia Cancer Center Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Vadivel Ganapathy
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia.,Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Muthusamy Thangaraju
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia. .,Georgia Cancer Center Medical College of Georgia, Augusta University, Augusta, Georgia
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19
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Breast cancer stem cells: A fallow research ground in Africa. Pathol Res Pract 2020; 216:153118. [PMID: 32853953 DOI: 10.1016/j.prp.2020.153118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 06/24/2020] [Accepted: 07/07/2020] [Indexed: 12/19/2022]
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20
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Tuasha N, Petros B. Heterogeneity of Tumors in Breast Cancer: Implications and Prospects for Prognosis and Therapeutics. SCIENTIFICA 2020; 2020:4736091. [PMID: 33133722 PMCID: PMC7568790 DOI: 10.1155/2020/4736091] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/20/2020] [Accepted: 09/28/2020] [Indexed: 05/16/2023]
Abstract
Breast cancer is the most commonly diagnosed form of cancer in women comprising 16% of all female cancers. The disease shows high intertumoral and intratumoral heterogeneity posing diagnostic and therapeutic challenges with unpredictable clinical outcome and response to existing therapy. Mounting evidence is ascertaining that breast cancer stem cells (CSCs) are responsible for tumor initiation, progression, recurrence, evolution, metastasis, and drug resistance. Therapeutics selectively targeting the CSCs based on distinct surface molecular markers and enhanced intracellular activities of these cells continue to evolve and hold significant promise. Having plethora of heterogeneity accompanied with failure of existing conventional therapeutics and poor prognosis, the present review focuses on elucidating the main signaling pathways in breast CSCs as major therapeutic targets. The role of developments in nanomedicine and miRNA as targeted delivery of therapeutic anticancer agents is also highlighted.
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Affiliation(s)
- Nigatu Tuasha
- Addis Ababa University, College of Natural Science, Department of Microbial, Cellular and Molecular Biology, P.O. Box 1176, Addis Ababa, Ethiopia
| | - Beyene Petros
- Addis Ababa University, College of Natural Science, Department of Microbial, Cellular and Molecular Biology, P.O. Box 1176, Addis Ababa, Ethiopia
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21
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Kumari R, Sunil D, Ningthoujam RS. Hypoxia-responsive nanoparticle based drug delivery systems in cancer therapy: An up-to-date review. J Control Release 2019; 319:135-156. [PMID: 31881315 DOI: 10.1016/j.jconrel.2019.12.041] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/22/2019] [Accepted: 12/23/2019] [Indexed: 02/08/2023]
Abstract
Hypoxia is a salient feature observed in most solid malignancies that holds a pivotal role in angiogenesis, metastasis and resistance to conventional cancer therapeutic approaches, and thus enables cancer progression. However, the typical characteristics of hypoxic cells such as low oxygen levels and highly bio-reductive environment can offer stimuli-responsive drug release to aid in tumor-specific chemo, radio, photodyanamic and sonodynamic therapies. This approach based on targeting the poorly oxygenated tumor habitats offers the prospective to overcome the difficulties that arises due to heterogenic nature of tumor and could be possibly used in the design of diagnostic as well as therapeutic nanocarriers for targeting various types of solid cancers. Consequently, hypoxia triggered nanoparticle based drug delivery systems is a rapidly progressing research area in developing effective strategies to combat drug-resistance in solid tumors. The present review presents the recent advances in the development of hypoxia-responsive nanovehicles for drug delivery to heterogeneous tumors. The initial sections of the article provides insights into the development of hypoxia in growing cancer and its role in disease progression. The current limitations and the future prospective of hypoxia-stimulated nanomachines for cancer treatment are also discussed.
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Affiliation(s)
- Rashmi Kumari
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576 104, Karnataka, India
| | - Dhanya Sunil
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576 104, Karnataka, India.
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Alizadeh A, Rezakhani L, Anjom Shoa M, Ghasemi S. Frequency of CD44 positive cells in MKN45 cell line after treatment with docetaxel in two and three-dimensional cell cultures. Tissue Cell 2019; 63:101324. [PMID: 32223952 DOI: 10.1016/j.tice.2019.101324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/30/2019] [Accepted: 12/03/2019] [Indexed: 12/19/2022]
Abstract
Three-dimensional (3D) cell culture is more similar to in vivo studies and suitable for studies of interactions between cells and extracellular matrix. CD44 is a cell surface receptor that can relate with the extracellular matrix molecules. CD44 in gastric cancer (GC) is a metastatic and drug resistance marker. In this study the quantity of CD44+ cells in MKN-45 cell line in response to half maximal inhibitory concentration (IC50) dose of Docetaxel (DOC) was measured in 2D and 3D cultures. MKN-45 cell line was cultured in 2D and 3D environments. For 3D culture, rat gastric tissue was separated and decellularized and MKN-45 cells were injected and cultured in the prepared matrix. The frequency of CD44+ cells in 2D and 3D cultures were analyzed before and after treatment with IC50 of DOC by flow cytometry and immunohistochemistry. Despite different environmental conditions, The frequency of CD44+ cells increased significantly in 2D and 3D environments after treatment with IC50 of DOC (P < 0.05). Given the advantages of 3D, this environment seems more appropriate for study about CD44+ cells and drug resistance in GC.
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Affiliation(s)
- Akram Alizadeh
- Department of Tissue Engineering and Applied Cell Sciences, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Leila Rezakhani
- Department of Tissue Engineering, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Maryam Anjom Shoa
- Department of Anatomical Sciences, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Sorayya Ghasemi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran; Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Xu Z, Ni R, Chen Y. Targeting breast cancer stem cells by a self-assembled, aptamer-conjugated DNA nanotrain with preloading doxorubicin. Int J Nanomedicine 2019; 14:6831-6842. [PMID: 31695364 PMCID: PMC6717853 DOI: 10.2147/ijn.s200482] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 05/15/2019] [Indexed: 12/30/2022] Open
Abstract
Background Cancer relapse and metastasis is an obstacle to the treatment of breast cancer. Breast cancer stem cells (BCSCs), which can evade the killing effect of traditional chemotherapies, such as doxorubicin (DOX), may contribute to cancer development. Therefore, it is necessary to develop novel drugs that can target and eliminate BCSCs. While multiple strategies have been conceived, they are normally limited by the low drug loading capacity. Purpose An aptamer-conjugated DNA nanotrain TA6NT-AKTin-DOX, which consists of a CD44 aptamer TA6, DNA building blocks M1 and M2 conjugated with an AKT inhibitor peptide AKTin individually and DOX, was designed. Methods This DNA nanotrain was prepared through hybridization chain reactionand this highly ordered DNA duplex has plenty of sites where DOX and AKTin can be intercalated or anchored. By performing on MCF-7 BCSCs and tumors by xenografting BCSCs into nude mice, efficacy of the newly prepared drug was evaluated and compared with that of free DOX and various DNA nanotrains. Results TA6NT-AKTin-DOX showed better efficacy both in vitro and in vivo. To some extent, the enhanced efficacy could be attributed to the targeting effect of TA6 and the high drug loading capacity of the nanotrain (~20 DOX molecules). Besides, a synergistic response was demonstrated by combining DOX with AKTin, probably due to that the anchored AKTin can reverse the drug resistance of BCSCs including apoptosis resistance and ABC transporters overexpression via the AKT signaling pathway. Conclusion The aptamer-conjugated DNA nanotrain TA6NT-AKTin-DOX demonstrated its targeting capability to BCSCs.
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Affiliation(s)
- Zhiyuan Xu
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, People's Republic of China
| | - Ronghua Ni
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, People's Republic of China
| | - Yun Chen
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, People's Republic of China.,State Key Laboratory of Reproductive Medicine, Nanjing 210029, People's Republic of China
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Tan B, Kanoko M, Tan G, Bachtiar A, Munir D. Dimensional Analysis of CD44 High CD24 Low and Ki67 in Triple Negative Breast Cancer. Open Access Maced J Med Sci 2019; 7:526-528. [PMID: 30894906 PMCID: PMC6420956 DOI: 10.3889/oamjms.2019.182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 11/05/2022] Open
Abstract
AIM To study the dimensional analysis CD44high CD24low and Ki67 in triple negative breast cancer (TNBC). METHODS This cross-sectional study was performed on patients with breast cancer in Haji Adam Malik Hospital Medan from 2013 to 2016 to determine the frequency and pathologic features of TNBC by immunohistochemistry stained. RESULTS By using immunohistochemistry staining panel of CD44, CD24, Twist, Claudin 7, CK5, CK8/18, EMA, E-Cadherin, Ki-67, a total 67 breast tumour samples with TNBC were classified as 9 stem-cells like 1 basal, 22 baso-luminal, and 23 luminal subtypes. CONCLUSION By using immunohistochemical staining panel, TNBC can be differentiated into stem cells like basal, baso-luminal and luminal subtypes. Didifferentiation and EMT can produce heterogeneity in TNBC subtypes and this will affect in handling TNBC. Stemness in stem cells- like subtypes are resistant to therapy. Therefore, TNBC needs special attention in order to assist in more optimal handling.
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Affiliation(s)
- Betty Tan
- Department of Anatomic Pathology of Medical Faculty, University of Sumatera Utara, Jl. Dr Mansyur No 5, Medan 20155, Indonesia
| | - Mpu Kanoko
- Department of Anatomic Pathology of Medical Faculty, University of Indonesia, Jakarta, Indonesia
| | - Gino Tan
- Department of Clinical Pathology of Medical Faculty, University of Sumatera Utara, Medan, Indonesia
| | - Adang Bachtiar
- Faculty of Public Health, University of Indonesia, Jakarta, Indonesia
| | - Delfitri Munir
- Department of Otorhinolaryngology of Medical Faculty, University of Sumatera Utara, Medan, Indonesia
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25
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The Role of Tumor Microenvironment and Impact of Cancer Stem Cells on Breast Cancer Progression and Growth. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2019. [DOI: 10.2478/sjecr-2018-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Breast cancer is not only a mass of genetically abnormal tissue in the breast. This is a well-organized system of a complex heterogeneous tissue. Cancer cells produce regulatory signals that stimulate stromal cells to proliferate and migrate; then, stromal elements respond to these signals by releasing components necessary for tumor development that provide structural support, vasculature, and extracellular matrices. Developing tumors can mobilize a variety of cell types from both local and distant niches via secret chemical factors derived from cancer cells themselves or neighboring cells disrupted by growing neoplasm, such as fibroblasts, immune inflammatory cells, and endothelial cells. CSCs are a group of very few cells that are tumorigenic (able to form tumors) and are defined as those cells within a tumor that can self-renew and lead to tumorigenesis. BCSCs represent a small population of cells that have stem cell characteristics and are related to breast cancer. There are different theories about the origin of BCSCs. BCSCs are responsible for breast carcinoma metastasis. Usually, there is a metastatic spread to the bones, and rarely to the lungs and liver. A phenomenon that allows BCSCs to make the transition from epithelial to mesenchymal expression and thus avoid the effect of cytotoxic agents is the epithelial-mesenchymal transition (EMT). During this process, cells change their molecular characteristics in terms of loss of epithelial characteristics taking the mesenchymal phenotype. This process plays a key role in the progression, invasion, and metastasis of breast tumors.
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26
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Li YW, Xu J, Zhu GY, Huang ZJ, Lu Y, Li XQ, Wang N, Zhang FX. Apigenin suppresses the stem cell-like properties of triple-negative breast cancer cells by inhibiting YAP/TAZ activity. Cell Death Discov 2018; 4:105. [PMID: 30479839 PMCID: PMC6244166 DOI: 10.1038/s41420-018-0124-8] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/01/2018] [Accepted: 11/05/2018] [Indexed: 01/08/2023] Open
Abstract
Triple-negative breast cancer (TNBC) remains a clinical challenge because of the absence of effective therapeutic targets. In TNBC, overexpression of YAP and TAZ correlates with bioactivities of cancer stem cells (CSCs), high histological grade, resistance to chemotherapy, and metastasis. Thus, YAP/TAZ may serve as potential therapeutic targets in TNBC. To identify YAP/TAZ inhibitors, in previous experiments, we screened a library of natural compounds by using YAP/TAZ luciferase reporter assay and identified apigenin as a potential inhibitor. In this study, we demonstrated that apigenin significantly suppressed the proliferation and migration of TNBC cells. Furthermore, we demonstrated that apigenin inhibited stemness features of TNBC cells in both in vitro and in vivo assays. Our mechanism study demonstrated that apigenin decreased YAP/TAZ activity and the expression of target genes, such as CTGF and CYR61, in TNBC cells. We also showed that apigenin disrupted the YAP/TAZ-TEADs protein-protein interaction and decreased expression of TAZ sensitized TNBC cells to apigenin treatment. Collectively, our studies suggest that apigenin is a promising therapeutic agent for the treatment of TNBC patients with high YAP/TAZ activity.
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Affiliation(s)
- Ying-Wei Li
- 1Tropical Medicine Institute, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China
| | - Jian Xu
- 1Tropical Medicine Institute, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China
| | - Guo-Yuan Zhu
- 2State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, P.R. China
| | - Zhu-Juan Huang
- 3The Research Center for Integrative Medicine, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China
| | - Yan Lu
- 4School of Basic Medicine Science, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China
| | - Xian-Qian Li
- 3The Research Center for Integrative Medicine, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China
| | - Neng Wang
- 3The Research Center for Integrative Medicine, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China.,5Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China
| | - Feng-Xue Zhang
- 3The Research Center for Integrative Medicine, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P.R. China
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27
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De Matheo LL, Geremia J, Calas MJG, Costa-Júnior JFS, da Silva FFF, von Krüger MA, Pereira WCDA. PVCP-based anthropomorphic breast phantoms containing structures similar to lactiferous ducts for ultrasound imaging: A comparison with human breasts. ULTRASONICS 2018; 90:144-152. [PMID: 29966842 DOI: 10.1016/j.ultras.2018.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 06/04/2018] [Accepted: 06/22/2018] [Indexed: 05/11/2023]
Abstract
The purpose of this work was to obtain an anthropomorphic phantom with acoustic properties similar to those of breast tissue, possessing lactiferous duct-like structures, which would be a first for this type of phantom. Breast lesions usually grow in glandular tissues or lactiferous ducts. Shape variations in these structures are detectable by using ultrasound imaging. To increase early diagnosis, it is important to develop computer-aided diagnosis (CAD) systems and improve medical training. Using tissue-like materials that mimic known internal structures can help achieve both of these goals. However, most breast ultrasound phantoms described in the literature emulate only fat tissues and lesion-like masses. In addition, commercially available phantoms claim to be realistic, but do not contain lactiferous duct structures. In this work, we collected reference images from both breasts of ten healthy female volunteers aged between 20 and 30 years using a 10 MHz linear transducer of a B-mode medical ultrasound system. Histograms of the grey scale distribution of each tissue component of interest, the grey level means, and standard deviations of the regions of interest were obtained. Phantoms were produced using polyvinyl chloride plastisol (PVCP) suspensions. The lactiferous duct-like structures were prepared using pure PVCP. Solid scatterers, such as alumina (mesh #100) and graphite powders (mesh #140) were added to the phantom matrix to mimic glandular and fat tissue, respectively. The phantom duct-like structure diameters observed on B-mode images (1.92 mm ± 0.44) were similar to real measures obtained with a micrometer (2.08 mm ± 0.23). The phantom ducts are easy to produce and are largely stable for at least one year. This phantom allows the researchers to elaborate the structure at their will and may be used in training and as a reference for development of CAD systems.
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Affiliation(s)
- Lucas Lobianco De Matheo
- Programa de Engenharia Biomédica, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil; Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - Juliana Geremia
- Programa de Engenharia Biomédica, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil; Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Maria Júlia Gregorio Calas
- Programa de Engenharia Biomédica, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil; Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - José Francisco Silva Costa-Júnior
- Programa de Engenharia Biomédica, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil; Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Flavia Fernandes Ferreira da Silva
- Programa de Engenharia Biomédica, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil; Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Marco Antônio von Krüger
- Programa de Engenharia Biomédica, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil; Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Wagner Coelho de Albuquerque Pereira
- Programa de Engenharia Biomédica, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil; Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Yan X, Yu Y, Li L, Chen N, Song W, He H, Dong J, Liu X, Cui J. Friend leukemia virus integration 1 is a predictor of poor prognosis of breast cancer and promotes metastasis and cancer stem cell properties of breast cancer cells. Cancer Med 2018; 7:3548-3560. [PMID: 29869379 PMCID: PMC6089157 DOI: 10.1002/cam4.1589] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 12/22/2022] Open
Abstract
Breast cancer is the most common cancer in women worldwide; despite the developments in diagnosis and therapy, recurrence and metastasis remain the main causes of death among patients with breast cancer. This study aimed to identify a promising biomarker for this disease. The study clarified (1) the association between Friend leukemia virus integration 1 (FLI-1) and various molecular subtypes and (2) the prognostic value of FLI-1 in breast cancer. To the best of our knowledge, this study is the first to report that FLI-1 is a predictor of poor prognosis in patients with breast cancer and overexpressed in the triple negative breast cancer (TNBC) subtype. To further verify the effect of FLI-1 in promoting the metastasis of TNBC, we performed a series of functional experiments in vitro and orthotopic xenograft experiments in the mammary fat pad of nude mice. FLI-1, as a transcription factor, bound to the promoters of key EMT-related genes (CDH1 and VIM), and regulated their expressions at the transcriptional level, thus induced epithelial-mesenchymal transition (EMT). The overexpression of FLI-1 significantly upregulated the expression of mesenchymal markers. After the modulation of FLI-1, the changes in mammary stem cell markers (ALDH1A1 and CD133) and the capacity to form mammospheres were consistent with those of the EMT-related markers. The orthotopic xenograft models further confirmed that the attenuation of stem cell traits after silencing FLI-1 decreased the ability of tumorigenesis. These results indicate that FLI-1 is a useful predictor of poor prognosis in patients with breast cancer. Furthermore, the preliminary exploration of metastatic mechanism in the patients with TNBC will provide a potential target to treat breast cancer in the near future.
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Affiliation(s)
- Xu Yan
- Pathological Diagnostic Center, The First Hospital of Jilin University, Changchun, Jilin, China.,Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yu Yu
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Lingyu Li
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Naifei Chen
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Wei Song
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hua He
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Jie Dong
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xiangliang Liu
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Jiuwei Cui
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
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29
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Yang X, Wang H, Jiao B. Mammary gland stem cells and their application in breast cancer. Oncotarget 2018; 8:10675-10691. [PMID: 27793013 PMCID: PMC5354691 DOI: 10.18632/oncotarget.12893] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 10/14/2016] [Indexed: 12/30/2022] Open
Abstract
The mammary gland is an organ comprising two primary lineages, specifically the inner luminal and the outer myoepithelial cell layers. Mammary gland stem cells (MaSCs) are highly dynamic and self-renewing, and can give rise to these mammary gland lineages. The lineages are responsible for gland generation during puberty as well as expansion during pregnancy. In recent years, researchers have focused on understanding how MaSCs are regulated during mammary gland development and transformation of breast cancer. Here, we summarize the identification of MaSCs, and how they are regulated by the signaling transduction pathways, mammary gland microenvironment, and non-coding RNAs (ncRNAs). Moreover, we debate the evidence for their serving as the origin of breast cancer, and discuss the therapeutic perspectives of targeting breast cancer stem cells (BCSCs). In conclusion, a better understanding of the key regulators of MaSCs is crucial for the clinical treatment of breast cancer.
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Affiliation(s)
- Xing Yang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hui Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Baowei Jiao
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
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30
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Li X, Meng Y, Xie C, Zhu J, Wang X, Li Y, Geng S, Wu J, Zhong C, Li M. Diallyl Trisulfide inhibits breast cancer stem cells via suppression of Wnt/β-catenin pathway. J Cell Biochem 2018; 119:4134-4141. [PMID: 29243835 DOI: 10.1002/jcb.26613] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 12/07/2017] [Indexed: 12/16/2022]
Abstract
Cancer stem cells (CSCs) play a central role in the development of breast cancer. The canonical Wnt/β-catenin signal pathway is critical for maintaining CSCs characteristics. Diallyl trisulfide (DATS), a natural organosulfur compound from the garlic, exhibits effective antitumor properties. However, the role of DATS in regulating breast CSCs activity and the underlying molecular mechanisms remain obscure. In the present study, we reported that DATS efficiently inhibited the viability of breast CSCs as evidenced by reducing turmorspheres formation, decreasing the expression of breast CSCs markers (CD44, ALDH1A1, Nanog, and Oct4), as well as inhibiting proliferation and inducing apoptosis. Furthermore, we showed that DATS downregulated the activity of Wnt/β-catenin pathway, while LiCl-triggered Wnt/β-catenin activation diminished DATS inhibition on breast CSCs. Taken together, our results illustrated that DATS suppressed breast CSCs through inhibiting Wnt/β-catenin pathway activation. These novel findings could provide new insights into the molecular mechanisms of breast CSCs regulation as well as its target intervention and might provide new strategies for preventing and treating breast cancers.
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Affiliation(s)
- Xiaoting Li
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yu Meng
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chunfeng Xie
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jianyun Zhu
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiaoqian Wang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yuan Li
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Shanshan Geng
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jieshu Wu
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Caiyun Zhong
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China.,The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Min Li
- Department of Anatomy, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
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31
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Liu J, Ye L, Li Q, Wu X, Wang B, Ouyang Y, Yuan Z, Li J, Lin C. Synaptopodin-2 suppresses metastasis of triple-negative breast cancer via inhibition of YAP/TAZ activity. J Pathol 2018; 244:71-83. [PMID: 28991374 DOI: 10.1002/path.4995] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 09/27/2017] [Accepted: 10/04/2017] [Indexed: 01/12/2023]
Abstract
Triple-negative breast cancer (TNBC) represents the most aggressive subtype of breast cancer, with a high incidence of distant metastasis; however, the underlying mechanism for this frequent recurrence remains unclear. Herein, we show that synaptopodin-2 (SYNPO2), a putative tumour suppressor in aggressive cancer, is frequently downregulated in TNBC by methylation of the promoter of SYNPO2. Low expression levels of SYNPO2 correlated significantly with 5-year metastatic relapse, and predicted poorer prognosis in breast cancer patients. Reintroduction of SYNPO2 inhibited the invasion and spontaneous metastasis of TNBC cells in vivo. Strikingly, downregulation of SYNPO2 is essential for the maintenance of stem cell-like properties in TNBC cells, leading to efficient distant colonization and metastasis outgrowth. Moreover, we demonstrate that SYNPO2 inhibits the activities of YAP and TAZ by stabilizing LATS2 protein, and transduction of YAP-S127A abrogates the repressive role of SYNPO2 in metastasis. Finally, immunohistochemical (IHC) analysis of breast cancer patient specimens indicated that the SYNPO2-LATS2-YAP axis is clinically relevant. These findings uncover a suppressive role of SYNPO2 in TNBC metastasis via inhibition of YAP/TAZ, and suggest that SYNPO2 might provide a potential prognosis marker and novel therapeutic strategy. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Junling Liu
- Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China
| | - Liping Ye
- Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China
| | - Qingyuan Li
- Guangdong Country Garden School, Shunde, Foshan, Guangdong, PR China
| | - Xianqiu Wu
- Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China
| | - Bin Wang
- Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China
| | - Ying Ouyang
- Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China
| | - Zhongyu Yuan
- Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China
| | - Jun Li
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Chuyong Lin
- Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China
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Logsdon DK, Beeghly GF, Munson JM. Chemoprotection Across the Tumor Border: Cancer Cell Response to Doxorubicin Depends on Stromal Fibroblast Ratios and Interstitial Therapeutic Transport. Cell Mol Bioeng 2017; 10:463-481. [PMID: 31719872 PMCID: PMC6816789 DOI: 10.1007/s12195-017-0498-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/20/2017] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Increasing evidence suggests that the tumor microenvironment reduces therapeutic delivery and may lead to chemotherapeutic resistance. At tumor borders, drug is convectively transported across a unique microenvironment composed of inverse gradients of stromal and tumor cells. These regions are particularly important to overall survival, as they are often missed through surgical intervention and contain many invading cells, often responsible for metastatic spread. An understanding of how cells in this tumor-border region respond to chemotherapy could begin to elucidate the role of transport and intercellular interactions in relation to chemoresistance. Here we examine the contribution of drug transport and stromal fibroblasts to breast cancer response to doxorubicin using in silico and in vitro models of the tumor-stroma interface. METHODS 2D culture systems were utilized to determine the effects of modulated ratios of fibroblasts and cancer cells on overall cancer cell viability. A homogenous breast mimetic in vitro 3D collagen I-based hydrogel system, with drug delivered via pressure driven flow (0.5 µm/s), was developed to determine the effects of transport and fibroblasts on doxorubicin treatment efficacy. Using a novel layered tumor bulk-to-stroma transition in vitro 3D hydrogel model, ratios of MDA-MB-231s and fibroblasts were seeded in successive layers creating cellular gradients, yielding insight into region specific cancer cell viability at the tumor border. In silico models, utilizing concentration profiles developed in COMSOL Multiphysics, were optimized for time dependent viability prediction and confirmation of in vitro findings. RESULTS In general, the addition of fibroblasts increased viability of cancer cells exposed to doxorubicin, indicating a protective effect of co-culture. More specifically, however, modulating ratios of cancer cells (MDA-MB-231):fibroblasts in 2D co-cultures, to mimic the tumor-stroma transition, resulted in a linear decrease in cancer cell viability from 77% (4:1) to 44% (1:4). Similar trends were seen in the breast-mimetic in vitro 3D collagen I-based homogenous hydrogel system. Our in vitro and in silico tumor border models indicate that MDA-MB-231s at the top of the gel, indicative of the tumor bulk, receive the greatest concentration of drug for the longest time, yet cellular death is lowest in this region. This trend is reversed for MDA-MB-231s alone. CONCLUSION Together, our data indicate that fibroblasts are chemoprotective at lower density, resulting in less tumor death in regions of higher chemotherapy concentration. Additionally, chemotherapeutic agent transport properties can modulate this effect.
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Affiliation(s)
- Daniel K. Logsdon
- Department of Biomedical Engineering, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Garrett F. Beeghly
- Department of Biomedical Engineering, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Jennifer M. Munson
- Department of Biomedical Engineering, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Kelly Hall, 325 Stanger Street, Blacksburg, VA 24061 USA
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33
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Belorusova AY, Suh N, Lee HJ, So JY, Maehr H, Rochel N. Structural analysis and biological activities of BXL0124, a gemini analog of vitamin D. J Steroid Biochem Mol Biol 2017; 173:69-74. [PMID: 27650654 PMCID: PMC5357203 DOI: 10.1016/j.jsbmb.2016.09.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/07/2016] [Accepted: 09/16/2016] [Indexed: 10/21/2022]
Abstract
Gemini analogs of calcitriol, characterized by the extension of the C21-methyl group of calcitriol with a second chain, act as agonists of the vitamin D receptor (VDR). This second side chain of gemini is accommodated in a new cavity inside the VDR created by the structural rearrangement of the protein core. The resulting conformational change preserves the active state of the receptor and bestows gemini compounds with biological activities that exceed those of calcitriol. Of particular interest are gemini's anti-cancer properties, and in this study we demonstrate anti-proliferative and tumor-reducing abilities of BXL0124 and BXL0097, differing only by the presence or absence, respectively, of the methylene group on the A ring. BXL0124 acts as a more potent VDR agonist than its 19-nor counterpart by activating VDR-mediated transcription at lower concentrations. In a similar manner, BXL0124 is more active than BXL0097 in growth inhibition of breast cancer cells and reduction of tumor volume. Structural comparisons of BXL0097 and BXL0124, as their VDR complexes, explain the elevated activity of the latter.
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Affiliation(s)
- Anna Y Belorusova
- Department of Integrated Structural Biology, IGBMC (Institute of Genetics and of Molecular and Cellular Biology), 1 rue Laurent Fries, Illkirch, France; Centre National de la Recherche Scientifique (CNRS) UMR 7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U964, Illkirch, France; Université de Strasbourg, Strasbourg, France
| | - Nanjoo Suh
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Hong Jin Lee
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Jae Young So
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Hubert Maehr
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Natacha Rochel
- Department of Integrated Structural Biology, IGBMC (Institute of Genetics and of Molecular and Cellular Biology), 1 rue Laurent Fries, Illkirch, France; Centre National de la Recherche Scientifique (CNRS) UMR 7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U964, Illkirch, France; Université de Strasbourg, Strasbourg, France.
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34
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Yan N, Xu L, Wu X, Zhang L, Fei X, Cao Y, Zhang F. GSKJ4, an H3K27me3 demethylase inhibitor, effectively suppresses the breast cancer stem cells. Exp Cell Res 2017; 359:405-414. [PMID: 28823831 DOI: 10.1016/j.yexcr.2017.08.024] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 12/13/2022]
Abstract
Recently, studies have been suggested that H3K27me3 is implicated with maintenance of cancer stem cells (CSCs), however, the roles of H3K27me3 in Breast cancer stem cells (BCSCs) remain poorly investigated. Here we explore the functionallities of H3K27me3 on BCSCs, we identify H3K27me3 as a negative modulator of BCSCs and suggest GSKJ4 is a promising drug targeting BCSCs. We show that the H3K27me3 level is decreased in mammosphere-derived BCSCs. In breast cancer cells, we demonstrate that GSKJ4 could markedly inhibit the proliferation. Strikingly, we show that GSKJ4 could effectively suppress BCSCs including expansion, self-renewal capacity, and the expression of stemness-related markers. Additionally, our xenograft model confirms that GSKJ4 is able to effectively inhibit the tumorigenicity of MDA-MB-231. Mechanistically, the inhibition effects of GSKJ4 on BCSCs are via inhibiting demethylases JMJD3 and UTX with methyltransferase EZH2 unchanged, which enhances H3K27me3 level. H3K27me3 activating leads to reduction of BCSCs expansion, self-renewal and global level of stemness factors. Collectively, our results provide strong supports that H3K27me3 exerts a suppressive influence on BCSCs and reveal that GSKJ4 is capable to be a prospective agent targeting BCSCs.
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Affiliation(s)
- Ningning Yan
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Department of Oncology, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, Suzhou 215021, China
| | - Liang Xu
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Prevention and Cure Center of Breast Disease, Third Hospital of Nanchang, Nanchang 33009, China
| | - Xiaobo Wu
- Prevention and Cure Center of Breast Disease, Third Hospital of Nanchang, Nanchang 33009, China
| | - Le Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Department of Oncology, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, Suzhou 215021, China
| | - Xiaochun Fei
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Yali Cao
- Prevention and Cure Center of Breast Disease, Third Hospital of Nanchang, Nanchang 33009, China.
| | - Fengchun Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Department of Oncology, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, Suzhou 215021, China.
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Timmermans-Sprang EPM, Gracanin A, Mol JA. Molecular Signaling of Progesterone, Growth Hormone, Wnt, and HER in Mammary Glands of Dogs, Rodents, and Humans: New Treatment Target Identification. Front Vet Sci 2017; 4:53. [PMID: 28451590 PMCID: PMC5389977 DOI: 10.3389/fvets.2017.00053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 03/28/2017] [Indexed: 12/21/2022] Open
Abstract
Mammary tumors are the most common form of neoplasia in the bitch. Female dogs are protected when they are spayed before the first estrus cycle, but this effect readily disappears and is already absent when dogs are spayed after the second heat. As the ovaries are removed during spaying, ovarian steroids are assumed to play an essential role in tumor development. The sensitivity toward tumor development is already present during early life, which may be caused by early mutations in stem cells during the first estrus cycles. Later on in life, tumors arise that are mostly steroid-receptor positive, although a small subset of tumors overexpressing human epidermal growth factor 2 (HER2) and some lacking estrogen receptor, progesterone receptor (PR), and HER2 (triple negative) are present, as is the situation in humans. Progesterone (P4), acting through PR, is the major steroid involved in outgrowth of mammary tissue. PRs are expressed in two forms, the progesterone receptor A (PRA) and progesterone receptor B (PRB) isoforms derived from splice variants from a single gene. The dog and the whole family of canids have only a functional PRA isoform, whereas the PRB isoform, if expressed at all, is devoid of intrinsic biological activity. In human breast cancer, overexpression of the PRA isoform is related to more aggressive carcinomas making the dog a unique model to study PRA-related mammary cancer. Administration of P4 to adult dogs results in local mammary expression of growth hormone (GH) and wing less-type mouse mammary tumor virus integration site family 4 (Wnt4). Both proteins play a role in activation of mammary stem cells. In this review, we summarize what is known on P4, GH, and Wnt signaling in canine mammary cancer, how the family of HER receptors could interact with this signaling, and what this means for comparative and translational oncological aspects of human breast cancer development.
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Affiliation(s)
| | - Ana Gracanin
- Department of Clinical Sciences of Companion Animals, Utrecht University, Utrecht, Netherlands
| | - Jan A Mol
- Department of Clinical Sciences of Companion Animals, Utrecht University, Utrecht, Netherlands
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Yang F, Xu J, Tang L, Guan X. Breast cancer stem cell: the roles and therapeutic implications. Cell Mol Life Sci 2017; 74:951-966. [PMID: 27530548 PMCID: PMC11107600 DOI: 10.1007/s00018-016-2334-7] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/04/2016] [Accepted: 08/08/2016] [Indexed: 12/20/2022]
Abstract
Breast cancers have been increasingly recognized as malignancies displaying frequent inter- and intra-tumor heterogeneity. This heterogeneity is represented by diverse subtypes and complexity within tumors, and impinges on response to therapy, metastasis, and prognosis. Cancer stem cells (CSCs), a subpopulation of cancer cells endowed with self-renewal and differentiation capacity, have been suggested to contribute to tumor heterogeneity. The CSC concept posits a hierarchical organization of tumors, at the apex of which are stem cells that drive tumor initiation, progression, and recurrence. In breast cancer, CSCs have been proposed to contribute to malignant progression, suggesting that targeting breast cancer stem cells (BCSCs) may improve treatment efficacy. Currently, several markers have been reported to identify BCSCs. However, there is objective variability with respect to the frequency and phenotype of BCSCs among different breast cancer cell lines and patients, and the regulatory mechanisms of BCSCs remain unclear. In this review, we summarize current literature about the diversity of BCSC markers, the roles of BCSCs in tumor development, and the regulatory mechanisms of BCSCs. We also highlight the most recent advances in BCSC targeting therapies and the challenges in translating the knowledge into clinical practice.
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Affiliation(s)
- Fang Yang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Jing Xu
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Lin Tang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Xiaoxiang Guan
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China.
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Alanazi IO, Khan Z. Understanding EGFR Signaling in Breast Cancer and Breast Cancer Stem Cells: Overexpression and Therapeutic Implications. Asian Pac J Cancer Prev 2017; 17:445-53. [PMID: 26925626 DOI: 10.7314/apjcp.2016.17.2.445] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Epidermal growth factor receptors (EGFRs/HERs) and downstream signaling pathways have been implicated in the pathogenesis of several malignancies including breast cancer and its resistance to treatment with chemotherapeutic drugs. Consequently, several monoclonal antibodies as well as small molecule inhibitors targeting these pathways have emerged as therapeutic tools in the recent past. However, studies have shown that utilizing these molecules in combination with chemotherapy has yielded only limited success. This review describes the current understanding of EGFRs/HERs and associated signaling pathways in relation to development of breast cancer and responses to various cancer treatments in the hope of pointing to improved prevention, diagnosis and treatment. Also, we review the role of breast cancer stem cells (BCSCs) in disease and the potential to target these cells.
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Affiliation(s)
- Ibrahim O Alanazi
- King Abdulaziz City for Science and Technology, Genome Center, King Saud University, Riyadh, Kingdom of Saudi Arabia E-mail :
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Growth inhibitory effect of Scrophularia oxysepala extract on mouse mammary carcinoma 4T1 cells in vitro and in vivo systems. Biomed Pharmacother 2016; 85:718-724. [PMID: 27923691 DOI: 10.1016/j.biopha.2016.11.086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/21/2016] [Accepted: 11/21/2016] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Medical plants have been intensively studied as a source of antitumor compounds. In the present study, we determine the effect of Scrophularia oxysepala on triggering apoptosis and diminishing growth, size and weight of the tumor in the allograft model of Balb/c mice. MATERIAL & METHODS The cytotoxic effects of Scrophularia oxysepala extract on 4T1 cells were studied using MTT (3-[4,5-dimethyl-2-thiazolyl]-2, 5 diphenyl tetrazolium bromide) assay and Trypan blue staining. DNA fragmentation assay was done for apoptosis detection. After the establishment of tumor in Balb/c mice, two groups of mice were received the extract at two doses of 50 and 100mg/kg respectively using intraperitoneal injection once every two days for 28 days. In order to assess the induction of apoptosis in cancer cells, the TUNEL assay was carried out in tumoral tissues. Moreover, the Ki67 test was used to evaluate tumor proliferation. RESULTS According to the findings, the Scrophularia oxysepala extract inhibited cell growth. In vivo results showed that tumor size in mice treated with the extract was significantly reduced. The weight of tumor mass in treated mice after resection was less than the control group. According to the TUNEL (Terminal deoxynucleotidyl transferase dUTP nick end labeling) assay results, the herbal extract induced apoptosis in tumoral cells. Ki67 test also demonstrated that administration of the extract suppressed the growth of tumor cells. CONCLUSION Our data well approved the anti-proliferative effect of Scrophularia oxysepala extract, and clearly showed that, the plant extract can decrease the growth of breast cancer cells in tumor mass. Thus it may represent an ideal therapeutic tool for breast cancer.
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Fani S, Dehghan F, Karimian H, Mun Lo K, Ebrahimi Nigjeh S, Swee Keong Y, Soori R, May Chow K, Kamalidehghan B, Mohd Ali H, Mohd Hashim N. Monobenzyltin Complex C1 Induces Apoptosis in MCF-7 Breast Cancer Cells through the Intrinsic Signaling Pathway and through the Targeting of MCF-7-Derived Breast Cancer Stem Cells via the Wnt/β-Catenin Signaling Pathway. PLoS One 2016; 11:e0160836. [PMID: 27529753 PMCID: PMC4986984 DOI: 10.1371/journal.pone.0160836] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 07/26/2016] [Indexed: 01/06/2023] Open
Abstract
Monobenzyltin Schiff base complex, [N-(3,5-dichloro-2-oxidobenzylidene)-4-chlorobenzyhydrazidato](o-methylbenzyl)aquatin(IV) chloride, C1, is an organotin non-platinum metal-based agent. The present study was conducted to investigate its effects on MCF-7 cells with respect to the induction of apoptosis and its inhibitory effect against MCF-7 breast cancer stem cells. As determined in a previous study, compound C1 revealed strong antiproliferative activity on MCF-7 cells with an IC50 value of 2.5 μg/mL. Annexin V/propidium iodide staining coupled with flow cytometry indicated the induction of apoptosis in treated cells. Compound C1 induced apoptosis in MCF-7 cells and was mediated through the intrinsic pathway with a reduction in mitochondrial membrane potential and mitochondrial cytochrome c release to cytosol. Complex C1 activated caspase 9 as a result of cytochrome c release. Subsequently, western blot and real time PCR revealed a significant increase in Bax and Bad expression and a significant decrease in the expression levels of Bcl2 and HSP70. Furthermore, a flow cytometric analysis showed that treatment with compound C1 caused a significant arrest of MCF-7 cells in G0/G1 phase. The inhibitory analysis of compound C1 against derived MCF-7 stem cells showed a significant reduction in the aldehyde dehydrogenase-positive cell population and a significant reduction in the population of MCF-7 cancer stem cells in primary, secondary, and tertiary mammospheres. Moreover, treatment with C1 down-regulated the Wnt/β-catenin self-renewal pathway. These findings indicate that complex C1 is a suppressive agent of MCF-7 cells that functions through the induction of apoptosis, cell cycle arrest, and the targeting of MCF-7-derived cancer stem cells. This work may lead to a better treatment strategy for the reduction of breast cancer recurrence.
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Affiliation(s)
- Somayeh Fani
- Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
- * E-mail: (SF); (NMH)
| | - Firouzeh Dehghan
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, 14174 Tehran, Iran
- Department of Exercise Science, Sports Center, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Hamed Karimian
- Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kong Mun Lo
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | | - Yeap Swee Keong
- Institute of Bioscience, University Putra Malaysia, 43400 Serdang, Malaysia
| | - Rahman Soori
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, 14174 Tehran, Iran
| | - Kit May Chow
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Behnam Kamalidehghan
- Medical Genetics Department, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran-Karaj Highway, Tehran, Iran
| | - Hapipah Mohd Ali
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Center for Natural Products and Drug Discovery (CENAR), Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Najihah Mohd Hashim
- Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Center for Natural Products and Drug Discovery (CENAR), Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail: (SF); (NMH)
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Brantley E, Callero MA, Berardi DE, Campbell P, Rowland L, Zylstra D, Amis L, Yee M, Simian M, Todaro L, Loaiza-Perez AI, Soto U. AhR ligand Aminoflavone inhibits α6-integrin expression and breast cancer sphere-initiating capacity. Cancer Lett 2016; 376:53-61. [PMID: 26996297 DOI: 10.1016/j.canlet.2016.03.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/13/2016] [Accepted: 03/14/2016] [Indexed: 01/25/2023]
Abstract
Traditional chemotherapies debulk tumors but fail to produce long-term clinical remissions due to their inability to eradicate tumor-initiating cells (TICs). This necessitates therapy with activity against the TIC niche. Αlpha6-integrin (α6-integrin) promotes TIC growth. In contrast, aryl hydrocarbon receptor (AhR) signaling activation impedes the formation of mammospheres (clusters of cells enriched for TICs). We investigated the ability of AhR agonist Aminoflavone (AF) and AF pro-drug (AFP464) to disrupt mammospheres derived from breast cancer cells and a M05 mammary mouse model of breast cancer respectively. We further examined the capacity of AF and AFP464 to exhibit anticancer activity and modulate the expression of 'stemness' genes including α6-integrin using immunofluorescence, flow cytometry and qRT-PCR analysis. AF disrupted mammospheres and prevented secondary mammosphere formation. In contrast, AF did not disrupt mammospheres derived from AhR ligand-unresponsive MCF-7 cells. AFP464 treatment suppressed M05 tumor growth and disrupted corresponding mammospheres. AF and AFP464 reduced the expression and percentage of cells that stained for 'stemness' markers including α6-integrin in vitro and in vivo respectively. These data suggest AFP464 thwarts bulk breast tumor and TIC growth via AhR agonist-mediated α6-integrin inhibition.
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Affiliation(s)
- Eileen Brantley
- Department of Basic Sciences, Loma Linda University Health School of Medicine, 11021 Campus St, Alumni Hall Room 101, Loma Linda, CA 92354, USA; Department of Pharmaceutical and Administrative Sciences, Loma Linda University Health School of Pharmacy, Loma Linda, CA, USA
| | - Mariana A Callero
- Research Area, Institute of Oncology Ángel H. Roffo, University of Buenos Aires, Avenue San Martín 5481, C1417DTB Ciudad de Buenos Aires, Argentina
| | - Damian E Berardi
- Research Area, Institute of Oncology Ángel H. Roffo, University of Buenos Aires, Avenue San Martín 5481, C1417DTB Ciudad de Buenos Aires, Argentina
| | - Petreena Campbell
- Department of Basic Sciences, Loma Linda University Health School of Medicine, 11021 Campus St, Alumni Hall Room 101, Loma Linda, CA 92354, USA
| | - Leah Rowland
- Department of Basic Sciences, Loma Linda University Health School of Medicine, 11021 Campus St, Alumni Hall Room 101, Loma Linda, CA 92354, USA
| | - Dain Zylstra
- Department of Pharmaceutical and Administrative Sciences, Loma Linda University Health School of Pharmacy, Loma Linda, CA, USA
| | - Louisa Amis
- Department of Basic Sciences, Loma Linda University Health School of Medicine, 11021 Campus St, Alumni Hall Room 101, Loma Linda, CA 92354, USA
| | - Michael Yee
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA, USA
| | - Marina Simian
- Research Area, Institute of Oncology Ángel H. Roffo, University of Buenos Aires, Avenue San Martín 5481, C1417DTB Ciudad de Buenos Aires, Argentina
| | - Laura Todaro
- Research Area, Institute of Oncology Ángel H. Roffo, University of Buenos Aires, Avenue San Martín 5481, C1417DTB Ciudad de Buenos Aires, Argentina
| | - Andrea I Loaiza-Perez
- Research Area, Institute of Oncology Ángel H. Roffo, University of Buenos Aires, Avenue San Martín 5481, C1417DTB Ciudad de Buenos Aires, Argentina.
| | - Ubaldo Soto
- Department of Basic Sciences, Loma Linda University Health School of Medicine, 11021 Campus St, Alumni Hall Room 101, Loma Linda, CA 92354, USA.
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Xu C, Sun X, Qin S, Wang H, Zheng Z, Xu S, Luo G, Liu P, Liu J, Du N, Zhang Y, Liu D, Ren H. Let-7a regulates mammosphere formation capacity through Ras/NF-κB and Ras/MAPK/ERK pathway in breast cancer stem cells. Cell Cycle 2016; 14:1686-97. [PMID: 25955298 DOI: 10.1080/15384101.2015.1030547] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Breast cancer stem cells (BCSCs) have the greatest potential to maintain tumorigenesis in all subtypes of tumor cells and were regarded as the key drivers of tumor. Recent evidence has demonstrated that BCSCs contributed to a high degree of resistance to therapy. However, how BCSCs self renewal and tumorigenicity are maintained remains obscure. Herein, our study illustrated that overexpression of let-7a reduced cell proliferation and mammosphere formation ability of breast cancer stem cells(BCSCs) in a KRas-dependent manner through different pathways in vitro and in vivo. To be specific, we provided the evidence that let-7a was decreased, and reversely the expression of KRas was increased with moderate expression in early stages (I/II) and high expression in advanced stages (III/IV) in breast cancer specimens. In addition, the negative correlation between let-7a and KRas was clearly observed. In vitro, we found that let-7a inhibited mammosphere-forming efficiency and the mammosphere-size via NF-κB and MAPK/ERK pathway, respectively. The inhibitory effect of let-7a on mammosphere formation efficiency and the size of mammospheres was abolished after the depletion of KRas. On the contrary, enforced expression of KRas rescued the effect of let-7a. In vivo, let-7a inhibited the growth of tumors, whereas the negative effect of let-7a was rescued after overexpressing KRas. Taken together, our findings suggested that let-7a played a tumor suppressive role in a KRas-dependent manner.
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Affiliation(s)
- Chongwen Xu
- a Second Department of Thoracic Surgery; First Affiliated Hospital; Medical College of Xi'an Jiaotong University ; Xi'an , Shaanxi ; PR China
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Arumugam P, Song JM. Quantitative evaluation of ABC transporter-mediated drug resistance based on the determination of the anticancer activity of camptothecin against breast cancer stem cells using TIRF. Integr Biol (Camb) 2016; 8:704-11. [DOI: 10.1039/c6ib00021e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Total internal reflection fluorescence microscopy (TIRF) and Qdot probe based analytical method for the simultaneous evaluation of the cytotoxic ability of camptothecin and the drug resistance profile upon the inhibition of drug efflux pumps in breast cancer stem cells.
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Affiliation(s)
| | - Joon Myong Song
- College of Pharmacy
- Seoul National University
- Seoul 151-741
- South Korea
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Silibinin affects tumor cell growth because of reduction of stemness properties and induction of apoptosis in 2D and 3D models of MDA-MB-468. Anticancer Drugs 2015; 26:487-97. [PMID: 25603020 DOI: 10.1097/cad.0000000000000205] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Silibinin, with a strong antioxidant activity and a weak cytotoxic property, is considered a candidate for cancer prevention. As there is no information on its effect on breast cancer tumor-initiating cells [cancer stem cells (CSCs)] in a 3D culture model, which more closely mimic natural tissues, we carried out this study to determine whether silibinin can target breast CSCs in MDA-MB-468 cells cultured under 3D and 2D conditions. Silibinin was added to culture medium of MDA-MB-468 at a half maximal inhibitory concentration (IC50) dose in 2D and 3D models. Then, stemness properties were assessed using colony and sphere-formation tests. Flow cytometry and real-time PCR were used to determine the different expression levels of stem cell-related marker at protein and mRNA levels under both culture conditions. Our results showed that silibinin inhibits cell growth in a dose-dependent manner by induction of apoptosis, alteration of the cell cycle, reduction of stemness properties and function, and induction of tumoral differentiation. The mechanism of silibinin action and also the response of tumor cells differed when cells were cultured in a 3D model compared with a 2D model. Silibinin may potentially target breast CSCs. Moreover, tumor-initiating cells are more sensitive to silibinin in a 3D culture than in a 2D culture.
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de Mascarel I, Debled M, Brouste V, Mauriac L, Sierankowski G, Velasco V, Croce S, Chibon F, Boudeau J, Debant A, MacGrogan G. Comprehensive prognostic analysis in breast cancer integrating clinical, tumoral, micro-environmental and immunohistochemical criteria. SPRINGERPLUS 2015; 4:528. [PMID: 26405647 PMCID: PMC4576021 DOI: 10.1186/s40064-015-1297-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 09/01/2015] [Indexed: 12/31/2022]
Abstract
Significant morphological, clinical and biological prognostic factors vary according to molecular subtypes of breast tumors, yet comprehensive analysis of such factors linked to survival in each group is lacking. Clinicopathological and micro-environmental criteria, estrogen (ER), progesterone (PR) receptors, HER2, Ki67, basal markers, CD24, CD44, ALDH1, BCL2, E-Cadherin and Trio were assessed in 1070 primary operable breast cancers from a single center according to five main molecular subtypes and associations with distant metastasis-free survival (DMFS) were examined. There were 682 (64 %) luminal A (LA), 166 (16 %) Luminal B HER2 negative (LBH−), 47 (4 %) Luminal B HER2 positive (LBH+), 108 (10 %) triple negative (TN) and 67 (6 %) HER2-enriched tumors (H2+). Median follow-up was 13.7 years. At 5 years, DMFS in LA (90 %) was better than in LBH− (80.9 %), hazard ratio (HR) = 2.22 [1.44–3.43] P < 0.001; LBH+ (74.5 %), HR = 3.14 [1.69–5.84] P < 0.001, TN (71.5 %) HR = 3.63 [2.34–5.63], P < 0.001; and H2+ (65.2 %), HR = 4.69 [2.90–7.59], P < 0.001. In multivariable analysis, factors associated with shorter DMFS varied according to molecular subtype, with tumor size being associated with shorter DMFS in the LBH−, LBH+ and TN groups and the Rho GEF Trio and BCL2 phenotypes in TN tumors only. These findings help to define new clinicophenotypic models and to identify new therapeutic strategies in the specific molecular subgroups.
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Affiliation(s)
- Isabelle de Mascarel
- Department of BioPathology, Institut Bergonié, 229, cours de l'Argonne, 33076 Bordeaux, France
| | - Marc Debled
- Department of Medical Oncology, Institut Bergonié, 229 cours de l'Argonne, 33076 Bordeaux, France
| | - Véronique Brouste
- Clinical and Epidemiological Research Unit, Institut Bergonié, 229 cours de l'Argonne, 33076 Bordeaux, France
| | - Louis Mauriac
- Department of Medical Oncology, Institut Bergonié, 229 cours de l'Argonne, 33076 Bordeaux, France
| | - Ghislaine Sierankowski
- Department of BioPathology, Institut Bergonié, 229, cours de l'Argonne, 33076 Bordeaux, France
| | - Valérie Velasco
- Department of BioPathology, Institut Bergonié, 229, cours de l'Argonne, 33076 Bordeaux, France
| | - Sabrina Croce
- Department of BioPathology, Institut Bergonié, 229, cours de l'Argonne, 33076 Bordeaux, France ; Institut National de la Santé et de la Recherche Médicale (INSERM) U916, Institut Bergonié, 229 cours de l'Argonne, 33076 Bordeaux, France
| | - Frédéric Chibon
- Department of BioPathology, Institut Bergonié, 229, cours de l'Argonne, 33076 Bordeaux, France ; Institut National de la Santé et de la Recherche Médicale (INSERM) U916, Institut Bergonié, 229 cours de l'Argonne, 33076 Bordeaux, France
| | - Jêrome Boudeau
- Centre de Recherche en Biochimie Macromoléculaire, CRBM-CNRS UMR 5237, Universités Montpellier I et II, Montpellier, France
| | - Anne Debant
- Centre de Recherche en Biochimie Macromoléculaire, CRBM-CNRS UMR 5237, Universités Montpellier I et II, Montpellier, France
| | - Gaëtan MacGrogan
- Department of BioPathology, Institut Bergonié, 229, cours de l'Argonne, 33076 Bordeaux, France ; Institut National de la Santé et de la Recherche Médicale (INSERM) U916, Institut Bergonié, 229 cours de l'Argonne, 33076 Bordeaux, France
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Kim RK, Uddin N, Hyun JW, Kim C, Suh Y, Lee SJ. Novel anticancer activity of phloroglucinol against breast cancer stem-like cells. Toxicol Appl Pharmacol 2015; 286:143-50. [DOI: 10.1016/j.taap.2015.03.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 03/10/2015] [Accepted: 03/29/2015] [Indexed: 12/13/2022]
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Kong JN, He Q, Wang G, Dasgupta S, Dinkins MB, Zhu G, Kim A, Spassieva S, Bieberich E. Guggulsterone and bexarotene induce secretion of exosome-associated breast cancer resistance protein and reduce doxorubicin resistance in MDA-MB-231 cells. Int J Cancer 2015; 137:1610-20. [PMID: 25833198 DOI: 10.1002/ijc.29542] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 02/20/2015] [Accepted: 03/20/2015] [Indexed: 12/31/2022]
Abstract
Many breast cancer cells acquire multidrug resistance (MDR) mediated by ABC transporters such as breast cancer resistance protein (BCRP/ABCG2). Here we show that incubation of human breast cancer MDA-MB-231 cells with farnesoid X receptor antagonist guggulsterone (gug) and retinoid X receptor agonist bexarotene (bex) elevated ceramide, a sphingolipid known to induce exosome secretion. The gug+bex combination reduced cellular levels of BCRP to 20% of control cells by inducing its association and secretion with exosomes. Exogenous C6 ceramide also induced secretion of BCRP-associated exosomes, while siRNA-mediated knockdown or GW4869-mediated inhibition of neutral sphingomyelinase 2 (nSMase2), an enzyme generating ceramide, restored cellular BCRP. Immunocytochemistry showed that ceramide elevation and concurrent loss of cellular BCRP was prominent in Aldefluor-labeled breast cancer stem-like cells. These cells no longer excluded the BCRP substrate Hoechst 33342 and showed caspase activation and apoptosis induction. Consistent with reduced BCRP, ABC transporter assays showed that gug+bex increased doxorubicin retention and that the combination of gug+bex with doxorubicin enhanced cell death by more than fivefold. Taken together, our results suggest a novel mechanism by which ceramide induces BCRP secretion and reduces MDR, which may be useful as adjuvant drug treatment for sensitizing breast cancer cells and cancer stem cells to chemotherapy.
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Affiliation(s)
- Ji Na Kong
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA
| | - Qian He
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA
| | - Guanghu Wang
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA
| | - Somsankar Dasgupta
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA.,Saint James School of Medicine, Cane Hall, Saint Vincent and the Grenadines
| | - Michael B Dinkins
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA
| | - Gu Zhu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA
| | - Austin Kim
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA
| | - Stefka Spassieva
- Division of Hematology/Oncology, Department of Medicine, Medical University of South Carolina, Charleston, SC
| | - Erhard Bieberich
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA
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2-(4-Hydroxy-3-methoxyphenyl)-benzothiazole suppresses tumor progression and metastatic potential of breast cancer cells by inducing ubiquitin ligase CHIP. Sci Rep 2014; 4:7095. [PMID: 25403352 PMCID: PMC4235287 DOI: 10.1038/srep07095] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 10/29/2014] [Indexed: 12/23/2022] Open
Abstract
Breast cancer is the most common malignancy among women and has poor survival and high recurrence rates for aggressive metastatic disease. Notably, triple-negative breast cancer (TNBC) is a highly aggressive cancer and there is no preferred agent for TNBC therapy. In this study, we show that a novel agent, 2-(4-hydroxy-3-methoxyphenyl)-benzothiazole (YL-109), has ability to inhibit breast cancer cell growth and invasiveness in vitro and in vivo. In addition, YL-109 repressed the sphere-forming ability and the expression of stem cell markers in MDA-MB-231 mammosphere cultures. YL-109 increased the expression of carboxyl terminus of Hsp70-interacting protein (CHIP), which suppresses tumorigenic and metastatic potential of breast cancer cells by inhibiting the oncogenic pathway. YL-109 induced CHIP transcription because of the recruitment of the aryl hydrocarbon receptor (AhR) to upstream of CHIP gene in MDA-MB-231 cells. Consistently, the antitumor effects of YL-109 were depressed by CHIP or AhR knockdown in MDA-MB-231 cells. Taken together, our findings indicate that a novel agent YL-109 inhibits cell growth and metastatic potential by inducing CHIP expression through AhR signaling and reduces cancer stem cell properties in MDA-MB-231 cells. It suggests that YL-109 is a potential candidate for breast cancer therapy.
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Bruttel VS, Wischhusen J. Cancer stem cell immunology: key to understanding tumorigenesis and tumor immune escape? Front Immunol 2014; 5:360. [PMID: 25120546 PMCID: PMC4114188 DOI: 10.3389/fimmu.2014.00360] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 07/13/2014] [Indexed: 12/20/2022] Open
Abstract
Cancer stem cell (CSC) biology and tumor immunology have shaped our understanding of tumorigenesis. However, we still do not fully understand why tumors can be contained but not eliminated by the immune system and whether rare CSCs are required for tumor propagation. Long latency or recurrence periods have been described for most tumors. Conceptually, this requires a subset of malignant cells which is capable of initiating tumors, but is neither eliminated by immune cells nor able to grow straight into overt tumors. These criteria would be fulfilled by CSCs. Stem cells are pluripotent, immune-privileged, and long-living, but depend on specialized niches. Thus, latent tumors may be maintained by a niche-constrained reservoir of long-living CSCs that are exempt from immunosurveillance while niche-independent and more immunogenic daughter cells are constantly eliminated. The small subpopulation of CSCs is often held responsible for tumor initiation, metastasis, and recurrence. Experimentally, this hypothesis was supported by the observation that only this subset can propagate tumors in non-obese diabetic/scid mice, which lack T and B cells. Yet, the concept was challenged when an unexpectedly large proportion of melanoma cells were found to be capable of seeding complex tumors in mice which further lack NK cells. Moreover, the link between stem cell-like properties and tumorigenicity was not sustained in these highly immunodeficient animals. In humans, however, tumor-propagating cells must also escape from immune-mediated destruction. The ability to persist and to initiate neoplastic growth in the presence of immunosurveillance – which would be lost in a maximally immunodeficient animal model – could hence be a decisive criterion for CSCs. Consequently, integrating scientific insight from stem cell biology and tumor immunology to build a new concept of “CSC immunology” may help to reconcile the outlined contradictions and to improve our understanding of tumorigenesis.
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Affiliation(s)
- Valentin S Bruttel
- Section for Experimental Tumor Immunology, Department of Obstetrics and Gynecology, School of Medicine, University of Würzburg , Würzburg , Germany
| | - Jörg Wischhusen
- Section for Experimental Tumor Immunology, Department of Obstetrics and Gynecology, School of Medicine, University of Würzburg , Würzburg , Germany
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Gong Y, Wang J, Huo L, Wei W, Ueno NT, Woodward WA. Aldehyde dehydrogenase 1 expression in inflammatory breast cancer as measured by immunohistochemical staining. Clin Breast Cancer 2014; 14:e81-8. [PMID: 24461456 DOI: 10.1016/j.clbc.2013.12.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/13/2013] [Accepted: 12/23/2013] [Indexed: 02/03/2023]
Abstract
BACKGROUND Inflammatory breast cancer (IBC) is a rare but aggressive type of breast carcinoma. Despite multimodality approaches, the clinical outcome of patients with IBC remains poor. Tumors arising from cancer stem cells (CSCs) are associated with drug resistance, tumor recurrence, and poor prognosis. This study aimed to evaluate expression of aldehyde dehydrogenase 1 (ALDH1), a putative stem cell marker, in IBC tumors. MATERIALS AND METHODS Tissue microarrays of 74 surgically resected IBC tumors were immunohistochemically stained for ALDH1. The results were correlated with clinicopathologic parameters and survival data and were compared with findings published in the literature. RESULTS The median follow-up time of the cohort was 42.1 months, and the 5-year overall survival (OS) rate was 46%. Twenty-four tumors (32%) were positive for ALDH1 staining. However, ALDH1 expression was not significantly associated with clinicopathologic variables, including lymph node status, tumor grade, and the status of estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2. Log-rank testing found that ALDH1 expression was not significantly associated with the OS rate, although there was a trend toward an association with lower OS rate (P = .07). The findings were consistent with some of the published data, but substantial inconsistency among reports was noted. CONCLUSION In this IBC cohort, no significant correlation between ALDH1 expression and prognosis or other clinicopathologic variables was found. Although sample size and selection criteria may be contributory factors, inconsistent results reported in the literature raise concern regarding the reliability of immunohistochemically identified ALDH1 as a sole marker of breast CSCs. Further study is required to elucidate the significance of CSCs in IBC biology.
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Affiliation(s)
- Yun Gong
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, University of Texas MD Anderson Cancer Center, Houston, TX.
| | - Jeff Wang
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lei Huo
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Wei Wei
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Naoto T Ueno
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Wendy A Woodward
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, University of Texas MD Anderson Cancer Center, Houston, TX
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Xu Y, Wang J, Li X, Liu Y, Dai L, Wu X, Chen C. Selective inhibition of breast cancer stem cells by gold nanorods mediated plasmonic hyperthermia. Biomaterials 2014; 35:4667-77. [DOI: 10.1016/j.biomaterials.2014.02.035] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 02/20/2014] [Indexed: 01/15/2023]
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