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Chang MR, Rusanov DA, Arakelyan J, Alshehri M, Asaturova AV, Kireeva GS, Babak MV, Ang WH. Targeting emerging cancer hallmarks by transition metal complexes: Cancer stem cells and tumor microbiome. Part I. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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2
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Bouchet A, Le Clec'h C, Rogalev L, Le Duc G, Pelletier L. Meloxicam can Potentiate the Therapeutic Effects of Synchrotron Microbeam Radiation Therapy on High-Grade Glioma Bearing Rats. Radiat Res 2022; 197:655-661. [PMID: 35245385 DOI: 10.1667/rade-21-00107.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 01/24/2022] [Indexed: 11/03/2022]
Abstract
The microbeam radiation therapy (MRT), a spatially micro-fractionated synchrotron radiotherapy, leads to better control of incurable high-grade glioma than that obtained upon homogeneous radiotherapy. We evaluated the effect of meloxicam, a non-steroidal anti-inflammatory drug (NSAID), to increase the MRT response. Survival of rats bearing intracranial 9L gliosarcoma treated with meloxicam and/or MRT (400 Gy, 50 μm-wide microbeams, 200 μm spacing) was monitored. Tumor growth was assessed on histological tissue sections and COX-2 transcriptomic expression was studied 1 to 25 days after radiotherapy. Meloxicam significantly extended the median survival of microbeam-irradiated rats (from +10.5 to +20 days). Dual treatment led to last survivors until D90 (D39 for the MRT group) and to tumor 9.5 times smaller than MRT alone. No significant modification of COX-2 expression was induced by MRT in normal and tumor tissues. The meloxicam reinforced the anti-tumor effect of MRT for glioma treatment. Although the mechanisms of interaction between meloxicam and MRT remain to be elucidated, the addition of this NSAID, easily implemented as a supplement to water for example, is a very favorable therapeutic regimen since it doubled the survival benefit compared to MRT alone.
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Affiliation(s)
- Audrey Bouchet
- INSERM U1296 "Radiation: Defense, Health Environment", Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France.,Biomedical Beamline, European Synchrotron Radiation Facility, BP220, F38043 Grenoble cedex
| | - Céline Le Clec'h
- Biomedical Beamline, European Synchrotron Radiation Facility, BP220, F38043 Grenoble cedex
| | - Léonid Rogalev
- Biomedical Beamline, European Synchrotron Radiation Facility, BP220, F38043 Grenoble cedex
| | - Géraldine Le Duc
- Biomedical Beamline, European Synchrotron Radiation Facility, BP220, F38043 Grenoble cedex
| | - Laurent Pelletier
- Grenoble University Hospital, BP217, F-38043 Grenoble cedex.,INSERM U836, Team Nanomedicine and brain, 6 Rue Fortuné Ferrini, F38706 La Tronche
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3
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Metal complexes of NSAIDs as potent anti-tumor chemotherapeutics: Mechanistic insights into cytotoxic activity via multiple pathways primarily by inhibition of COX–1 and COX–2 enzymes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214316] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Li Y, Liu J, Cai XW, Li HX, Cheng Y, Dong XH, Yu W, Fu XL. Biomarkers for the prediction of esophageal cancer neoadjuvant chemoradiotherapy response: A systemic review. Crit Rev Oncol Hematol 2021; 167:103466. [PMID: 34508841 DOI: 10.1016/j.critrevonc.2021.103466] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 08/04/2021] [Accepted: 08/29/2021] [Indexed: 11/18/2022] Open
Abstract
Neoadjuvant chemoradiotherapy followed by surgery has been established as the standard treatment for locally advanced esophageal cancer. For patients with complete regression after neoadjuvant chemotherapy, active surveillance rather than planned surgery has been proposed as an organ preservation strategy. Reliable biomarkers to predict chemoradiation response is needed. We first summarized the previous reports of biomarkers with the potential to predict the treatment response of esophageal cancer neoadjuvant chemoradiotherapy. These traditional biomarkers are classified into three groups: genetic biomarkers, RNA biomarkers, and protein biomarkers. We then summarized some special types of biomarkers, including metabolites biomarkers, immune and tumor microenvironment biomarkers, and microbiome biomarkers.
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Affiliation(s)
- Yue Li
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China; Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Jun Liu
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xu-Wei Cai
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hong-Xuan Li
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Cheng
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Huan Dong
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wen Yu
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.
| | - Xiao-Long Fu
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.
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Li Y, Liu B, Shi H, Wang Y, Sun Q, Zhang Q. Metal complexes against breast cancer stem cells. Dalton Trans 2021; 50:14498-14512. [PMID: 34591055 DOI: 10.1039/d1dt02909f] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
With the highest incidence, breast cancer is the leading cause of cancer deaths among women in the world. Tumor metastasis is the major contributor of high mortality in breast cancer, and the existence of cancer stem cells (CSCs) has been proven to be the cause of tumor metastasis. CSCs are a small proportion of tumor cells, and they are associated with self-renewal and tumorigenic potential. Given the significance of CSCs in tumor initiation, expansion, relapse, resistance, and metastasis, studies should investigate and discover effective anticancer agents that can not only inhibit the proliferation of differentiated tumor cells but also reduce the tumorigenic capability of CSCs. Thus, new therapies must be discovered to treat and prevent this severely hazardous disease of human beings. The success of platinum complexes in cancer treatment has laid the basic foundation for the utilization of metal complexes in the treatment of malignant cancers, in particular the highly aggressive triple-negative breast cancer. Importantly, metal complexes currently have diverse and versatile competences in the therapeutic targeting of CSCs. The anti-CSC properties provide a strong impetus for the development of novel metal-based compounds for the targeting of CSCs and treatment of chemotherapy-resistant and relapsed tumors. In this review, we provide the latest advances in metal complexes including platinum, ruthenium, osmium, iridium, manganese, cobalt, nickel, copper, zinc, palladium, and tin complexes against breast CSCs obtained over the past decade, with pertinent literature including those published until 2021.
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Affiliation(s)
- Yingsi Li
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, International Cancer Center, Department of Pharmacology, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, China.
| | - Boxin Liu
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, International Cancer Center, Department of Pharmacology, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, China.
| | - Hongdong Shi
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - Yi Wang
- Key Laboratory for Advanced Materials of MOE, School of Chemistry & Molecular Engineering, East China University of Science and Technology Shanghai, 200237, P. R. China
| | - Qi Sun
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, International Cancer Center, Department of Pharmacology, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, China.
| | - Qianling Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
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Abolhasani H, Zarghi A, Komeili Movahhed T, Abolhasani A, Daraei B, Dastmalchi S. Design, synthesis and biological evaluation of novel indanone containing spiroisoxazoline derivatives with selective COX-2 inhibition as anticancer agents. Bioorg Med Chem 2021; 32:115960. [DOI: 10.1016/j.bmc.2020.115960] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 11/27/2020] [Accepted: 12/14/2020] [Indexed: 01/06/2023]
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Sipe LM, Chaib M, Pingili AK, Pierre JF, Makowski L. Microbiome, bile acids, and obesity: How microbially modified metabolites shape anti-tumor immunity. Immunol Rev 2020; 295:220-239. [PMID: 32320071 PMCID: PMC7841960 DOI: 10.1111/imr.12856] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 02/06/2023]
Abstract
Bile acids (BAs) are known facilitators of nutrient absorption but recent paradigm shifts now recognize BAs as signaling molecules regulating both innate and adaptive immunity. Bile acids are synthesized from cholesterol in the liver with subsequent microbial modification and fermentation adding complexity to pool composition. Bile acids act on several receptors such as Farnesoid X Receptor and the G protein-coupled BA receptor 1 (TGR5). Interestingly, BA receptors (BARs) are expressed on immune cells and activation either by BAs or BAR agonists modulates innate and adaptive immune cell populations skewing their polarization toward a more tolerogenic anti-inflammatory phenotype. Intriguingly, recent evidence also suggests that BAs promote anti-tumor immune response through activation and recruitment of tumoricidal immune cells such as natural killer T cells. These exciting findings have redefined BA signaling in health and disease wherein they may suppress inflammation on the one hand, yet promote anti-tumor immunity on the other hand. In this review, we provide our readers with the most recent understanding of the interaction of BAs with the host microbiome, their effect on innate and adaptive immunity in health and disease with a special focus on obesity, bariatric surgery-induced weight loss, and immune checkpoint blockade in cancer.
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Affiliation(s)
- Laura M. Sipe
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mehdi Chaib
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Ajeeth K. Pingili
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Joseph F. Pierre
- Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Liza Makowski
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
- Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, USA
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Kefayat A, Ghahremani F, Safavi A, Hajiaghababa A, Moshtaghian J. C-phycocyanin: a natural product with radiosensitizing property for enhancement of colon cancer radiation therapy efficacy through inhibition of COX-2 expression. Sci Rep 2019; 9:19161. [PMID: 31844085 PMCID: PMC6915779 DOI: 10.1038/s41598-019-55605-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 11/29/2019] [Indexed: 12/13/2022] Open
Abstract
Different chemical and nanomaterial agents have been introduced for radiosensitizing purposes. However, many researchers believe these agents are far away from clinical application due to side effects and limited knowledge about their behavior in the human body. In this study, C-phycocyanin (C-PC) was used as a natural radiosensitizer for enhancement of radiation therapy (RT) efficacy. C-PC treatment's effect on the COX-2 expression of cancer cells was investigated by flow cytometry, western blot, qRT-PCR analyses in vitro and in vivo. Subsequently, the radiosensitizing effect of C-PC treatment was investigated by MTT and clonogenic cell survival assays for CT-26, DLD-1, HT-29 colon cancer cell lines and the CRL-1831 as normal colonic cells. In addition, the C-PC treatment effect on the radiation therapy efficacy was evaluated according to CT-26 tumor's growth progression and immunohistochemistry analyses of Ki-67 labeling index. C-PC treatment (200 µg/mL) could significantly enhance the radiation therapy efficacy in vitro and in vivo. Synergistic interaction was detected at C-PC and radiation beams co-treatment based on Chou and Talalay formula (combination index <1), especially at 200 µg/mL C-PC and 6 Gy radiation dosages. The acquired DEF of C-PC treatment was 1.39, 1.4, 1.63, and 1.05 for CT-26, DLD-1, HT-29, and CRL-1831 cells, respectively. Also, C-PC + RT treated mice exhibited 35.2% lower mean tumors' volume and about 6 days more survival time in comparison with the RT group (P < 0.05). In addition, C-PC + RT group exhibited 54% lower Ki-67 index in comparison with the RT group. Therefore, C-PC can exhibit high radiosensitizing effects. However, the potential cardiovascular risks of C-PC as a COX-2 inhibitor should be evaluated with extensive preclinical testing before developing this agent for clinical trials.
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Affiliation(s)
- Amirhosein Kefayat
- Department of Oncology, Cancer Prevention Research Center, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran
| | - Fatemeh Ghahremani
- Department of Medical Physics and Radiotherapy, Arak University of Medical Sciences, Arak, 38481-76941, Iran.
| | - Ashkan Safavi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Jamal Moshtaghian
- Division of Cell and Molecular Biology, Department of Biology, Faculty of Science, University of Isfahan, Isfahan, Iran
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Eskandari A, Suntharalingam K. A reactive oxygen species-generating, cancer stem cell-potent manganese(ii) complex and its encapsulation into polymeric nanoparticles. Chem Sci 2019; 10:7792-7800. [PMID: 31588328 PMCID: PMC6764274 DOI: 10.1039/c9sc01275c] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/02/2019] [Indexed: 12/31/2022] Open
Abstract
Intracellular redox modulation offers a viable approach to effectively remove cancer stem cells (CSCs), a subpopulation of tumour cells thought to be responsible for cancer recurrence and metastasis. Here we report the breast CSC potency of reactive oxygen species (ROS)-generating manganese(ii)- and copper(ii)-4,7-diphenyl-1,10-phenanthroline complexes bearing diclofenac, a nonsteriodial anti-inflammatory drug (NSAID), 1 and 3. Notably, the manganese(ii) complex, 1, exhibits 9-fold, 31-fold, and 40-fold greater potency towards breast CSCs than 3, salinomycin (an established breast CSC-potent agent), and cisplatin (a clinically approved anticancer drug) respectively. Encouragingly, 1 displays 61-fold higher potency toward breast CSCs than normal skin fibroblast cells. Clinically relevant epithelial spheroid studies show that 1 is able to selectively inhibit breast CSC-enriched HMLER-shEcad mammosphere formation and viability (one order of magnitude) over non-tumorigenic breast MCF10A spheroids. Mechanistic studies show that 1 prompts breast CSC death by generating intracellular ROS and inhibiting cyclooxygenase-2 (COX-2) activity. The manganese(ii) complex, 1, induces a greater degree of intracellular ROS in CSCs than the corresponding copper(ii) complex, 3, highlighting the ROS-generating superiority of manganese(ii)- over copper(ii)-phenanthroline complexes. Encapsulation of 1 by biodegradable methoxy poly(ethylene glycol)-b-poly(d,l-lactic-co-glycolic) acid (PEG-PLGA) copolymers at the appropriate feed (5%, 1 NP5 ) enhances breast CSC uptake and greatly reduces overall toxicity. The nanoparticle formulation 1 NP5 indiscriminately kills breast CSCs and bulk breast cancer cells, and evokes a similar cellular response to the payload, 1. To the best of our knowledge, this is the first study to investigate the anti-CSC properties of managense complexes and to demonstrate that polymeric nanoparticles can be used to effectively deliver managense complexes into CSCs.
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Affiliation(s)
- Arvin Eskandari
- Department of Chemistry , King's College London , London , SE1 1DB , UK
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Bregenzer ME, Horst EN, Mehta P, Novak CM, Raghavan S, Snyder CS, Mehta G. Integrated cancer tissue engineering models for precision medicine. PLoS One 2019; 14:e0216564. [PMID: 31075118 PMCID: PMC6510431 DOI: 10.1371/journal.pone.0216564] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Tumors are not merely cancerous cells that undergo mindless proliferation. Rather, they are highly organized and interconnected organ systems. Tumor cells reside in complex microenvironments in which they are subjected to a variety of physical and chemical stimuli that influence cell behavior and ultimately the progression and maintenance of the tumor. As cancer bioengineers, it is our responsibility to create physiologic models that enable accurate understanding of the multi-dimensional structure, organization, and complex relationships in diverse tumor microenvironments. Such models can greatly expedite clinical discovery and translation by closely replicating the physiological conditions while maintaining high tunability and control of extrinsic factors. In this review, we discuss the current models that target key aspects of the tumor microenvironment and their role in cancer progression. In order to address sources of experimental variation and model limitations, we also make recommendations for methods to improve overall physiologic reproducibility, experimental repeatability, and rigor within the field. Improvements can be made through an enhanced emphasis on mathematical modeling, standardized in vitro model characterization, transparent reporting of methodologies, and designing experiments with physiological metrics. Taken together these considerations will enhance the relevance of in vitro tumor models, biological understanding, and accelerate treatment exploration ultimately leading to improved clinical outcomes. Moreover, the development of robust, user-friendly models that integrate important stimuli will allow for the in-depth study of tumors as they undergo progression from non-transformed primary cells to metastatic disease and facilitate translation to a wide variety of biological and clinical studies.
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Affiliation(s)
- Michael E. Bregenzer
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Eric N. Horst
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Pooja Mehta
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Caymen M. Novak
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Shreya Raghavan
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Catherine S. Snyder
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Geeta Mehta
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, School of Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
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Modulating the Chemical and Biological Properties of Cancer Stem Cell-Potent Copper(II)-Nonsteroidal Anti-Inflammatory Drug Complexes. Molecules 2019; 24:molecules24091677. [PMID: 31035718 PMCID: PMC6540347 DOI: 10.3390/molecules24091677] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/23/2019] [Accepted: 04/27/2019] [Indexed: 01/17/2023] Open
Abstract
Copper(II) complexes bearing nonsteroidal anti-inflammatory drugs (NSAIDs) are known to potently kill cancer stem cells (CSCs), a subpopulation of tumour cells with high metastatic and relapse fidelity. One of the major disadvantages associated to these copper(II) complexes is their instability in the presence of strong cellular reductants (such as ascorbic acid). Here we present a biologically stable copper(II)-NSAID complex containing a bathocuproinedisulfonic acid disodium ligand and two indomethacin moieties, Cu(bathocuproinedisulfonic acid disodium)(indomethacin)2, 2. The copper(II) complex, 2 kills bulk breast cancer cells and breast CSC equally (in the sub-micromolar range) and displays very low toxicity against non-tumorigenic breast and kidney cells (IC50 value > 100 µM). Three-dimensional cell culture studies show that 2 can significantly reduce the number and size of breast CSC mammospheres formed (from single suspensions) to a similar level as salinomycin (an established anti-breast CSC agent). The copper(II) complex, 2 is taken up reasonably by breast CSCs and localises largely in the cytoplasm (>90%). Cytotoxicity studies in the presence of specific inhibitors suggest that 2 induces CSC death via a reactive oxygen species (ROS) and cyclooxygenase isoenzyme-2 (COX-2) dependent apoptosis pathway.
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Chen HX, Yuan ZY, Wu KX, Liu C, Mao QD, He BG, Yuan H. The study of methylation and single nucleotide polymorphisms of cancer-related genes in patients with early-stage ulcerative colitis. Scand J Gastroenterol 2019; 54:427-431. [PMID: 31046486 DOI: 10.1080/00365521.2019.1594355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Aim: To investigate the methylation status and single nucleotide polymorphisms (SNPs) of cancer-associated genes in ulcerative colitis (UC) patients and explore the potential mechanism for high cancer risk of UC. Methods: A total of 103 patients were enrolled in our study, which included 30 healthy subjects, 41 patients with early-stage UC, and 32 patients with colorectal cancer (CRC). Methylation status of cyclooxygenase 2 (COX2) and human RUNT-related transcription factor 3 (RUNX3) genes in colonic mucosa from 3 groups of subjects were detected by methylation-specific polymerase chain reaction (PCR). The SNPs TNF-α rs1800629 and IL-1 rs1143627 were genotyped by PCR and direct sequencing. Results: The methylation rate of RUNX3 gene within CRC group was 35.7%, which was significantly higher than the other two groups (Healthy control 5.9%, UC 15.4%, p = .040). There was no significant difference in the methylation rate of RUNX3 between early-stage UC group and healthy control group (p = .633). The methylation rate of COX2 gene, the genotypes (GG, AG) and alleles (A, G) of rs1800629, and the genotypes (CC,CT,TT) and alleles (C,T) of rs1143627 were not statistically different among three groups. Conclusion: In the early stage of UC, the methylation rate of cancer-related genes RUNX3 and COX2 and SNPs TNF-α rs1800629 and IL-1 rs1143627 were not significantly different compared with healthy subjects. The methylation rate of RUNX3 in CRC increased, while the methylation rate of COX2 and SNPs TNF-α rs1800629 and IL-1 rs1143627 did not change significantly compared with the other two groups.
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Affiliation(s)
- Hai-Xing Chen
- a School of clinical medicine , Weifang Medical University , Weifang , Shandong , China
| | - Zi-Ying Yuan
- b Department of Gastroenterology , Peking University Third Hospital , Beijing , China
| | - Ke-Xiang Wu
- c Department of Electrophysiology , The Affiliated Hospital of Weifang Medical College , Weifang , Shandong , China
| | - Chen Liu
- a School of clinical medicine , Weifang Medical University , Weifang , Shandong , China
| | - Qing-Dong Mao
- d Department of Gastroenterology , The Affiliated Hospital Of Qingdao University , Qingdao , Shandong , China
| | - Bao-Guo He
- d Department of Gastroenterology , The Affiliated Hospital Of Qingdao University , Qingdao , Shandong , China
| | - Hao Yuan
- d Department of Gastroenterology , The Affiliated Hospital Of Qingdao University , Qingdao , Shandong , China
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Therapeutic Efficiency of an External Chinese Herbal Formula of Mammary Precancerous Lesions by BATMAN-TCM Online Bioinformatics Analysis Tool and Experimental Validation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:2795010. [PMID: 30906412 PMCID: PMC6398062 DOI: 10.1155/2019/2795010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 12/09/2018] [Accepted: 12/31/2018] [Indexed: 01/08/2023]
Abstract
Ruyan Neixiao Cream (RYNXC), a patented Chinese herbal formula, was reported to have the effect of treating mammary precancerous disease. In this study, we predicted the potential targets, pathways, and diseases of the ingredients contained in each herbal of RYNXC and constructed an ingredients-targets-diseases network. Then, we analyzed molecular mechanisms of this Chinese herbal formula by MCF-10AT cells and model rats of breast precancerous lesions. BATMAN-TCM prediction showed that ESR1, PGR, PTGS2, EGFR, and Src were mRNA targets of RYNXC. Our results suggested that RYNXC transdermal fluid downregulated ESR1, PGR, PTGS2, EGFR, and Src expression at gene and protein level in MCF-10AT cells. In the rat breast precancerous lesions model, high and low dose RYNXC could also significantly reduce genes and proteins expression of ESR1, PGR, PTGS2, EGFR, and Src. Taken together these data indicate that RYNXC targets multiple molecules responsible for breast precancerous lesion and is an effective Chinese herbal formula. So RYNXC may be a promising external drug for breast precancerous lesions.
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Laws K, Suntharalingam K. The Next Generation of Anticancer Metallopharmaceuticals: Cancer Stem Cell-Active Inorganics. Chembiochem 2018; 19:2246-2253. [PMID: 30109911 DOI: 10.1002/cbic.201800358] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Indexed: 12/17/2022]
Abstract
Cancer stem cells (CSCs) are heavily linked to fatal incidences of cancer relapse and metastasis. Conventional cancer therapies such as surgery, chemotherapy and radiation are largely futile against CSCs. Therefore, highly original approaches are needed to overcome CSCs and to provide durable, long-term clinical outcomes. Many academia- and pharmaceutical-led studies aimed at developing chemical or biological anti-CSC agents are ongoing; however, the application of inorganic compounds is rare. In this minireview, we discuss how the chemical diversity and versatility offered by metals has been harnessed to develop an unprecedented, emerging class of metallopharmaceuticals: CSC-active inorganics. A detailed account of their mechanism(s) of action is provided, and possible future directions for exploration are also put forward.
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Affiliation(s)
- Kristine Laws
- Department of Chemistry, King's College London, Trinity Street, London, SE1 1DB, UK
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Polypyridyl Zinc(II)-Indomethacin Complexes with Potent Anti-Breast Cancer Stem Cell Activity. Molecules 2018; 23:molecules23092253. [PMID: 30181492 PMCID: PMC6225474 DOI: 10.3390/molecules23092253] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 08/27/2018] [Accepted: 08/31/2018] [Indexed: 01/16/2023] Open
Abstract
Cancer stem cells (CSCs) are thought of as a clinically pertinent subpopulation of tumors, partly responsible for cancer relapse and metastasis. Research programs aimed at discovering anti-CSC agents have largely focused on biologics and purely organic molecules. Recently, we showed that a family of redox-active copper(II) complexes with phenanthroline-based ligands and nonsteroidal anti-inflammatory drugs (NSAIDs) such as indomethacin, are capable of potently and selectively killing breast CSCs. Herein we present analogous redox-inactive, zinc(II)-phenanthroline-indomethacin complexes with the ability to kill breast CSCs and bulk breast cancer cells with equal potency (in the submicro- or micromolar range). A single dose of the zinc(II) complexes could theoretically be administered to eliminate whole tumor populations. Excitingly, some of the zinc(II) complexes decrease the growth and viability of mammospheres to a comparable or higher degree than salinomycin, a compound known to effectively kill breast CSCs. As far as we are aware this is the first report to examine the anti-breast CSC activity of zinc(II)-containing compounds.
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16
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Xu F, Li M, Zhang C, Cui J, Liu J, Li J, Jiang H. Clinicopathological and prognostic significance of COX-2 immunohistochemical expression in breast cancer: a meta-analysis. Oncotarget 2018; 8:6003-6012. [PMID: 27999206 PMCID: PMC5351608 DOI: 10.18632/oncotarget.13990] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 12/12/2016] [Indexed: 12/22/2022] Open
Abstract
The prognostic significance of COX-2 in patients with breast cancer remains controversial. The aims of our meta-analysis are to evaluate its association with clinicopathological characteristics and prognostic value in patients with breast cancer. PubMed, EMBASE, Web of Science, the Ovid Database and Grey literature were systematically searched up to May 2016. Twenty-one studies including 6739 patients with breast cancer were analyzed. The meta-analysis indicated that the incidence difference of COX-2 expression was significant when comparing the lymph node positive group to negative group (OR = 1.76, 95% CI [1.30, 2.39]) and the tumor size ≥ 2cm group to the tumor size < 2cm group (OR = 1.71, 95% CI [1.22, 2.39]). None of other clinicopathological parameters such as the ER status, PR status, HER2 status and the vascular invasion status were associated with COX-2 overexpression. The detection of COX-2 was significantly correlated with the disease-free survival (DFS) of patients (HR = 1.58, 95% CI [1.23, 2.03]) and the overall survival (OS) of patients (HR = 1.51, 95% CI [1.31, 1.72]). Our meta-analysis demonstrates that the presence of high levels of COX-2 is associated with poor prognosis for breast cancer patients and predicts bigger tumor size and lymph node metastasis.
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Affiliation(s)
- Feng Xu
- Department of Breast Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China, 100020
| | - Mengxin Li
- Department of Breast Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China, 100020
| | - Chao Zhang
- Department of Breast Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China, 100020
| | - Jianxiu Cui
- Department of Breast Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China, 100020
| | - Jun Liu
- Department of Breast Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China, 100020
| | - Jie Li
- Department of Breast Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China, 100020
| | - Hongchuan Jiang
- Department of Breast Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China, 100020
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17
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Raposo TP, Arias-Pulido H, Chaher N, Fiering SN, Argyle DJ, Prada J, Pires I, Queiroga FL. Comparative aspects of canine and human inflammatory breast cancer. Semin Oncol 2018. [PMID: 29526258 DOI: 10.1053/j.seminoncol.2017.10.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Inflammatory breast cancer (IBC) in humans is the most aggressive form of mammary gland cancer and shares clinical, pathologic, and molecular patterns of disease with canine inflammatory mammary carcinoma (CIMC). Despite the use of multimodal therapeutic approaches, including targeted therapies, the prognosis for IBC/CIMC remains poor. The aim of this review is to critically analyze IBC and CIMC in terms of biology and clinical features. While rodent cancer models have formed the basis of our understanding of cancer biology, the translation of this knowledge into improved outcomes has been limited. However, it is possible that a comparative "one health" approach to research, using a natural canine model of the disease, may help advance our knowledge on the biology of the disease. This will translate into better clinical outcomes for both species. We propose that CIMC has the potential to be a useful model for developing and testing novel therapies for IBC. Further, this strategy could significantly improve and accelerate the design and establishment of new clinical trials to identify novel and improved therapies for this devastating disease in a more predictable way.
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Affiliation(s)
- Teresa P Raposo
- Division of Cancer and Stem Cells, Faculty of Medicine, University of Nottingham, United Kingdom
| | - Hugo Arias-Pulido
- Department of Microbiology and Immunology and Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire 03756, USA
| | - Nabila Chaher
- Department of Pathology, Centre Pierre et Marie Curie, 1, Avenue Battendier, Place May 1st, Algiers, Algeria
| | - Steven N Fiering
- Department of Microbiology and Immunology and Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire 03756, USA
| | - David J Argyle
- The Royal (Dick) School of Veterinary Studies and Roslin Institute, Easter Bush Campus, Midlothian, University of Edinburgh, United Kingdom
| | - Justina Prada
- Departament of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal; Animal and Veterinary research Centre (CECAV), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Isabel Pires
- Departament of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal; Animal and Veterinary research Centre (CECAV), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Felisbina Luísa Queiroga
- Departament of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal; Center for the Study of Animal Sciences, CECA-ICETA, University of Porto, Porto, Portugal; Center for Research and Technology of Agro-Environment and Biological Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
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18
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Liao X, Huang C, Zhang D, Wang J, Li J, Jin H, Huang C. Mitochondrial catalase induces cells transformation through nucleolin-dependent Cox-2 mRNA stabilization. Free Radic Biol Med 2017; 113:478-486. [PMID: 29097213 DOI: 10.1016/j.freeradbiomed.2017.10.387] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 10/26/2017] [Accepted: 10/27/2017] [Indexed: 12/12/2022]
Abstract
It's well documented that over-production of reactive oxygen species (ROS) causes detrimental damages to cells. While a low level of ROS, such as H2O2, functions as signaling transducer and motivates cell proliferation in both cancer and non-transformed stem cells. As a double-edged sword, the direct evidence for demonstrating the function of H2O2 in the cause of tumor is barely characterized in intact cells. In our current study, we found that targeted expression of mitochondrial catalase (mCAT), but not catalase, could significantly reduce the accumulation of H2O2 in mouse epithelial JB6 Cl41 cells, consequently led to the cell malignant transformation and anchorage-independent cell growth. Further study revealed that this reduction of H2O2 resulted in the translocation of nucleolin from the cytoplasm to nuclear, and maintaining the nucleolin nuclear location status, and in turn stabilizing the cox-2 mRNA and consequently leading to a COX-2 protein upregulation, as well as malignant transforming mCAT-overexpressed Cl41 cells. Collectively, our studies here provide direct experimental evidence demonstrating a novel function and molecular mechanisms of mCAT in transforming mouse Cl41 cells, and high significance insight into understanding the beneficial aspect of H2O2 in circumventing tumor promotion and the theoretical basis for the management of H2O2 in the clinic implementation as a chemotherapeutic strategy.
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Affiliation(s)
- Xin Liao
- Nelson Institute of Environmental Medicine, New York University, School of Medicine, Tuxedo Park, NY 10987, USA; Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chao Huang
- Nelson Institute of Environmental Medicine, New York University, School of Medicine, Tuxedo Park, NY 10987, USA
| | - Dongyun Zhang
- Nelson Institute of Environmental Medicine, New York University, School of Medicine, Tuxedo Park, NY 10987, USA
| | - Jingjing Wang
- Nelson Institute of Environmental Medicine, New York University, School of Medicine, Tuxedo Park, NY 10987, USA; Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jingxia Li
- Nelson Institute of Environmental Medicine, New York University, School of Medicine, Tuxedo Park, NY 10987, USA
| | - Honglei Jin
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Chuanshu Huang
- Nelson Institute of Environmental Medicine, New York University, School of Medicine, Tuxedo Park, NY 10987, USA.
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19
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Li B, Lu Y, Yu L, Han X, Wang H, Mao J, Shen J, Wang B, Tang J, Li C, Song B. miR-221/222 promote cancer stem-like cell properties and tumor growth of breast cancer via targeting PTEN and sustained Akt/NF-κB/COX-2 activation. Chem Biol Interact 2017; 277:33-42. [PMID: 28844858 DOI: 10.1016/j.cbi.2017.08.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/24/2017] [Accepted: 08/21/2017] [Indexed: 11/30/2022]
Abstract
MicroRNAs (miRNAs) play an important role in regulating cancer stem cell (CSC). Previous studies have shown that microRNA-221/222 (miR-221/222) cluster are involved in the propagation of breast cancer stem cell (BCSC), however, the underlying molecular mechanisms are still not fully understood. In this study, we found that miR-221/222 were overexpressed in highly aggressive breast cancer MDA-MB-231 cells, that are enriched in markers for epithelial-mesenchymal transition (EMT) and BCSCs, than in MCF-7 cells. Phosphatase and tensin homolog (PTEN) was confirmed to be the target of miR-221/222 in breast cancer cells. MiR-221/222 enhanced breast cancer cell growth, migration and invasion by downregulating PTEN. Importantly, both ectopic expression of miR-221/222 and PTEN knockdown increased the mammosphere formation capacity and the expression of the stemness marker ALDH1. MiR-221/222 lentivirus vector infected MCF-7 cells produced larger subcutaneous tumors, while shRNA vector of PTEN showed similar trend. Along with the downregulation of PTEN caused by miR-221/222 in the breast cancer cells and the xenograft tumor tissues, Akt phosphorylation (p-Akt), NF-κB p65 and phosphorylated p65 (p-p65), and cyclooxygenase-2 (COX-2) were all overexpressed compared to the negative control. Taken together, our findings indicate that miR-221/222 play a critical role in the propagation of BCSCs and tumor growth possibly through targeting PTEN, which in turn activating the Akt/NF-κB/COX-2 pathway. MiR-221/222 might represent the potential target of breast cancer therapy.
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Affiliation(s)
- Bailong Li
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China; Department of Clinical Medicine, Grade 2013, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian 116044, China
| | - Ying Lu
- Teaching Laboratory of Morphology, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Lihui Yu
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Xiaocui Han
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Honghai Wang
- Teaching Affairs Department, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Jun Mao
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Jie Shen
- Teaching Laboratory of Morphology, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Bo Wang
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Jianwu Tang
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Chunyan Li
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China.
| | - Bo Song
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China; Teaching Laboratory of Morphology, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China.
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20
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Kuang W, Deng Q, Deng C, Li W, Shu S, Zhou M. Hepatocyte growth factor induces breast cancer cell invasion via the PI3K/Akt and p38 MAPK signaling pathways to up-regulate the expression of COX2. Am J Transl Res 2017; 9:3816-3826. [PMID: 28861172 PMCID: PMC5575195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 08/04/2017] [Indexed: 06/07/2023]
Abstract
Hepatocyte growth factor (HGF) is a multifunctional growth factor that plays important roles in promoting the invasion and metastasis of various tumor cells. However, there are few reports about the exact mechanisms of HGF involved in the regulation of cell invasion via the induction of COX2. In this study, we found that HGF could activate its receptor c-Met and up-regulate COX2 expression in a dose- and time-dependent manner, which resulted in an increase in MMP-9 expression and subsequent invasiveness of the breast cancer cell lines MDA-MB-231 and MCF-7. The HGF-induced expression of COX2 and MMP-9 and cell invasion were partially suppressed by COX2 gene silencing. The PI3K/Akt and p38 MAPK signaling pathways were activated by HGF in both cell lines. However, PI3K/Akt or p38 MAPK-specific inhibition alone partially attenuated HGF-induced COX2 and MMP-9 expression and the invasiveness of the two breast cancer cell lines, and these HGF-induced effects were almost completely abolished by simultaneous treatment with both inhibitors. Therefore, we concluded that HGF mediates the up-regulation of COX2 predominantly through the PI3K/Akt and p38 MAPK signaling pathways, leading to MMP-9 expression and the subsequent invasion of two breast cancer cell lines. This study improves our understanding of the signal transduction mechanisms in the HGF-induced invasion and progression of breast cancer.
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Affiliation(s)
- Wenbin Kuang
- Department of Laboratory, Longhua District Central HospitalShenzhen, Guangdong, China
| | - Qiuchan Deng
- Department of Laboratory, Longhua District Central HospitalShenzhen, Guangdong, China
- Department of Immunology, Zhongshan School of Medicine, Institute of Human Virology, Sun Yat-sen UniversityGuangzhou, Guangdong, China
| | - Chuntao Deng
- Department of Intensive Care Unit, People’s Hospital of Heyuan CityHeyuan, Guangdong, China
| | - Wensheng Li
- Department of Neurosurgery, People’s Hospital of Heyuan CityHeyuan, Guangdong, China
| | - Shaowei Shu
- Department of Laboratory, Longhua District Central HospitalShenzhen, Guangdong, China
| | - Meirong Zhou
- Department of Laboratory, Longhua District Central HospitalShenzhen, Guangdong, China
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21
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Lu C, Eskandari A, Cressey PB, Suntharalingam K. Cancer Stem Cell and Bulk Cancer Cell Active Copper(II) Complexes with Vanillin Schiff Base Derivatives and Naproxen. Chemistry 2017; 23:11366-11374. [PMID: 28658520 DOI: 10.1002/chem.201701939] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Indexed: 01/03/2023]
Abstract
Four copper(II) complexes, 1-4 containing regioisomeric vanillin Schiff base derivatives and the nonsteroidal anti-inflammatory drug (NSAID), naproxen, were synthesised and characterised. All complexes effectively cleave DNA in cell-free systems, with 4 displaying the highest nuclease activity. DNA binding studies suggest that 4 binds to DNA via the grooves prior to inducing oxidative DNA cleavage. Three of the complexes (1, 3, and 4) indiscriminately kill cancer stem cell (CSC)-enriched cells (HMLER-shEcad) and bulk cancer cells (HMLER) at micromolar concentrations. The most effective complex, 4 also reduced the formation and size of mammospheres to a similar extent as salinomycin, a well-established CSC-potent agent. Mechanistic studies show that 4 is readily taken up by CSCs, elevates intracellular reactive oxygen species (ROS) levels, causes DNA damage, and induces caspase-dependent apoptosis. Furthermore, 4 inhibits cyclooxygenase-2 (COX-2) expression and causes COX-2-dependent CSC death. The advantage of 4 over bulk cancer cell- or CSC-selective agents is that it has the potential to remove whole tumor populations (bulk cancer cells and CSCs) with a single dose.
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Affiliation(s)
- Chunxin Lu
- Department of Chemistry, King's College London, London, SE1 1DB, United Kingdom
| | - Arvin Eskandari
- Department of Chemistry, King's College London, London, SE1 1DB, United Kingdom
| | - Paul B Cressey
- Department of Chemistry, King's College London, London, SE1 1DB, United Kingdom
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22
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Liu S, Zhang C, Zhang K, Gao Y, Wang Z, Li X, Cheng G, Wang S, Xue X, Li W, Zhang W, Zhang Y, Xing X, Li M, Hao Q. FOXP3 inhibits cancer stem cell self-renewal via transcriptional repression of COX2 in colorectal cancer cells. Oncotarget 2017; 8:44694-44704. [PMID: 28591725 PMCID: PMC5546511 DOI: 10.18632/oncotarget.17974] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 04/25/2017] [Indexed: 01/06/2023] Open
Abstract
Colon cancer stem cell (cCSC) is considered as the seed cell of colon cancer initiation and metastasis. Cyclooxygenase-2 (COX2), a downstream target of NFκB, is found to be essential in promoting cancer stem cell renewal. However, how COX2 is dysregulated in cCSCs is largely unknown. In this study, we found that the expression of transcription factor FOXP3 was much lower in the spheroids than that in the parental tumor cells. Overexpression of FOXP3 significantly decreased the numbers of spheres, reduced the side population. Accordingly, FOXP3 expression decreased the tumor size and weight in the xenograft model. The tumor inhibitory effects of FOXP3 were rarely seen when COX2 was additionally knocked down. Mechanically, FOXP3 transcriptionally repressed COX2 expression via interacting with and thus inhibiting p65 activity on the putative NFκB response elements in COX2 promoter. Taken together, we here revealed possible involvement of FOXP3 in regulating cCSC self-renewal via tuning COX2 expression, and thus providing a new target for the eradication of colon cancer stem cells.
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Affiliation(s)
- Shuo Liu
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Cun Zhang
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Kuo Zhang
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Yuan Gao
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Zhaowei Wang
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Xiaoju Li
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Guang Cheng
- Department of Neurosurgery, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, China
| | - Shuning Wang
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Xiaochang Xue
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Weina Li
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Wei Zhang
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Yingqi Zhang
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Xianghui Xing
- State Key Laboratory of Military Stomatology, Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Meng Li
- Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Qiang Hao
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
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23
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Lee BM, Rodriguez A, Mena G, Gottumukkala V, Mehran RJ, Rice DC, Feng L, Yu J, Cata JP. Platelet-to-Lymphocyte Ratio and Use of NSAIDs During the Perioperative Period as Prognostic Indicators in Patients With NSCLC Undergoing Surgery. Cancer Control 2017; 23:284-94. [PMID: 27556669 DOI: 10.1177/107327481602300312] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Hematological biomarkers of inflammation such as the neutrophil-to-lymphocytic rate have been reported as predictors of survival in a variety of cancers. The aim of the present study was to investigate the prognostic value of the perioperative platelet-to-lymphocyte ratio in patients with non-small-cell lung cancer (NSCLC) and to elucidate the effects of the perioperative use of nonsteroidal anti-inflammatory drugs (NSAIDs) on tumor recurrence and survival in patients undergoing surgical resection for NSCLC. METHODS This retrospective study included data from 1,637 patients who underwent surgical resection for stage I, II, or III NSCLC. Perioperative data and tumor-related variables were included. Univariate and multivariable Cox proportional hazard ratio (HR) models were used to evaluate the association between perioperative platelet-to-lymphocyte ratio and NSAID use on recurrence-free survival (RFS) and overall survival (OS). RESULTS Multivariate analysis showed that a preoperative platelet-to-lymphocyte ratio of at least 180 was associated with reduced rates of RFS (HR = 1.22; 95% confidence interval [CI], 1.03-1.45; P = .019) and OS (HR = 1.33; 95% CI, 1.10-1.62; P = .004). Perioperative use of NSAIDs showed no statistically significant changes in RFS and OS rates (P = .72 and P = .44, respectively). CONCLUSIONS A higher preoperative inflammatory status is associated with decreased rates of RFS and OS in patients with NSCLC undergoing curative surgery. Perioperative use of NSAIDs was not found to be an independent predictor of survival.
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Affiliation(s)
- Brenda M Lee
- Department of Anesthesiology and Perioperative Medicine, MD Anderson Cancer Center, Houston, TX 77030.
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24
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A Cancer Stem Cell Potent Cobalt(III)–Cyclam Complex Bearing Two Tolfenamic Acid Moieties. INORGANICS 2017. [DOI: 10.3390/inorganics5010012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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25
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Tian J, Hachim MY, Hachim IY, Dai M, Lo C, Raffa FA, Ali S, Lebrun JJ. Cyclooxygenase-2 regulates TGFβ-induced cancer stemness in triple-negative breast cancer. Sci Rep 2017; 7:40258. [PMID: 28054666 PMCID: PMC5215509 DOI: 10.1038/srep40258] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 12/02/2016] [Indexed: 12/14/2022] Open
Abstract
Triple negative breast cancer (TNBC), an aggressive subtype of breast cancer, display poor prognosis and exhibit resistance to conventional therapies, partly due to an enrichment in breast cancer stem cells (BCSCs). Here, we investigated the role of the cyclooxygenase-2 (COX-2), a downstream target of TGFβ, in regulating BCSCs in TNBC. Bioinformatics analysis revealed that COX-2 is highly expressed in TNBC and that its expression correlated with poor survival outcome in basal subtype of breast cancer. We also found TGFβ-mediated COX-2 expression to be Smad3-dependent and to be required for BCSC self-renewal and expansion in TNBCs. Knocking down COX-2 expression strikingly blocked TGFβ-induced tumorsphere formation and TGFβ-induced enrichment of the two stem-like cell populations, CD24lowCD44high and ALDH+ BCSCs. Blocking COX-2 activity, using a pharmacological inhibitor also prevented TGFβ-induced BCSC self-renewal. Moreover, we found COX-2 to be required for TGFβ-induced expression of mesenchymal and basal breast cancer markers. In particular, we found that TGFβ-induced expression of fibronectin plays a central role in TGFβ-mediated breast cancer stemness. Together, our results describe a novel role for COX-2 in mediating the TGFβ effects on BCSC properties and imply that targeting the COX-2 pathway may prove useful for the treatment of TNBC by eliminating BCSCs.
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Affiliation(s)
- Jun Tian
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
| | - Mahmood Y Hachim
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
| | - Ibrahim Y Hachim
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
| | - Meiou Dai
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
| | - Chieh Lo
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
| | - Fatmah Al Raffa
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
| | - Suhad Ali
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
| | - Jean Jacques Lebrun
- Department of Medicine, McGill University Health Center, Cancer Research Program, Montreal, Quebec, H4A 3J1, Canada
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26
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MAJDZADEH M, ALIEBRAHIMI S, VATANKHAH M, OSTAD SN. Effects of celecoxib and L-NAME on apoptosis and cell cycle ofMCF-7 CD44+/CD24–/low subpopulation. Turk J Biol 2017. [DOI: 10.3906/biy-1703-101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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27
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Lu C, Laws K, Eskandari A, Suntharalingam K. A reactive oxygen species-generating, cyclooxygenase-2 inhibiting, cancer stem cell-potent tetranuclear copper(ii) cluster. Dalton Trans 2017; 46:12785-12789. [DOI: 10.1039/c7dt02789c] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Tetranuclear copper(ii) complexes containing multiple diclofenac and Schiff base moieties,1–4, are shown to kill bulk cancer cells and cancer stem cells (CSCs) with low micromolar potency.
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Affiliation(s)
- C. Lu
- Department of Chemistry
- King's College London
- London
- UK
- College of Biological
| | - K. Laws
- Department of Chemistry
- King's College London
- London
- UK
| | - A. Eskandari
- Department of Chemistry
- King's College London
- London
- UK
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28
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Cyclooxygenase-2: A Role in Cancer Stem Cell Survival and Repopulation of Cancer Cells during Therapy. Stem Cells Int 2016; 2016:2048731. [PMID: 27882058 PMCID: PMC5108861 DOI: 10.1155/2016/2048731] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/16/2016] [Accepted: 09/26/2016] [Indexed: 12/13/2022] Open
Abstract
Cyclooxygenase-2 (COX-2) is an inducible form of the enzyme that catalyses the synthesis of prostanoids, including prostaglandin E2 (PGE2), a major mediator of inflammation and angiogenesis. COX-2 is overexpressed in cancer cells and is associated with progressive tumour growth, as well as resistance of cancer cells to conventional chemotherapy and radiotherapy. These therapies are often delivered in multiple doses, which are spaced out to allow the recovery of normal tissues between treatments. However, surviving cancer cells also proliferate during treatment intervals, leading to repopulation of the tumour and limiting the effectiveness of the treatment. Tumour cell repopulation is a major cause of treatment failure. The central dogma is that conventional chemotherapy and radiotherapy selects resistant cancer cells that are able to reinitiate tumour growth. However, there is compelling evidence of an active proliferative response, driven by increased COX-2 expression and downstream PGE2 release, which contribute to the repopulation of tumours and poor patient outcome. In this review, we will examine the evidence for a role of COX-2 in cancer stem cell biology and as a mediator of tumour repopulation that can be molecularly targeted to overcome resistance to therapy.
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Adega F, Borges A, Chaves R. Cat Mammary Tumors: Genetic Models for the Human Counterpart. Vet Sci 2016; 3:vetsci3030017. [PMID: 29056725 PMCID: PMC5606576 DOI: 10.3390/vetsci3030017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 08/06/2016] [Accepted: 08/11/2016] [Indexed: 12/18/2022] Open
Abstract
The records are not clear, but Man has been sheltering the cat inside his home for over 12,000 years. The close proximity of this companion animal, however, goes beyond sharing the same roof; it extends to the great similarity found at the cellular and molecular levels. Researchers have found a striking resemblance between subtypes of feline mammary tumors and their human counterparts that goes from the genes to the pathways involved in cancer initiation and progression. Spontaneous cat mammary pre-invasive intraepithelial lesions (hyperplasias and neoplasias) and malignant lesions seem to share a wide repertoire of molecular features with their human counterparts. In the present review, we tried to compile all the genetics aspects published (i.e., chromosomal alterations, critical cancer genes and their expression) regarding cat mammary tumors, which support the cat as a valuable alternative in vitro cell and animal model (i.e., cat mammary cell lines and the spontaneous tumors, respectively), but also to present a critical point of view of some of the issues that really need to be investigated in future research.
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Affiliation(s)
- Filomena Adega
- Laboratory of Cytogenomics and Animal Genomics (CAG), Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real 5001-801, Portugal.
- Faculty of Sciences, BioISI-Biosystems & Integrative Sciences Institute, University of Lisboa, Campo Grande, Lisboa 1749-016, Portugal.
| | - Ana Borges
- Laboratory of Cytogenomics and Animal Genomics (CAG), Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real 5001-801, Portugal.
- Faculty of Sciences, BioISI-Biosystems & Integrative Sciences Institute, University of Lisboa, Campo Grande, Lisboa 1749-016, Portugal.
| | - Raquel Chaves
- Laboratory of Cytogenomics and Animal Genomics (CAG), Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real 5001-801, Portugal.
- Faculty of Sciences, BioISI-Biosystems & Integrative Sciences Institute, University of Lisboa, Campo Grande, Lisboa 1749-016, Portugal.
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Cressey PB, Eskandari A, Bruno PM, Lu C, Hemann MT, Suntharalingam K. The Potent Inhibitory Effect of a Naproxen-Appended Cobalt(III)-Cyclam Complex on Cancer Stem Cells. Chembiochem 2016; 17:1713-8. [PMID: 27377813 DOI: 10.1002/cbic.201600368] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Indexed: 12/31/2022]
Abstract
We report the potency against cancer stem cells (CSCs) of a new cobalt(III)-cyclam complex (1) that bears the nonsteroidal anti-inflammatory drug, naproxen. The complex displays selective potency for breast CSC-enriched HMLER-shEcad cells over breast CSC-depleted HMLER cells. Additionally, it inhibited the formation of three-dimensional tumour-like mammospheres, and reduced their viability to a greater extent than clinically used breast cancer drugs (vinorelbine, cisplatin and paclitaxel). The anti-mammosphere potency of 1 was enhanced under hypoxia-mimicking conditions. Detailed mechanistic studies revealed that DNA damage and cyclooxygenase-2 (COX-2) inhibition contribute to the cytotoxic mechanism of 1. To the best of our knowledge, 1 is the first cobalt-containing compound to show selective potency for CSCs over bulk cancer cells.
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Affiliation(s)
- Paul B Cressey
- Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London, SE1 1DB, UK
| | - Arvin Eskandari
- Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London, SE1 1DB, UK
| | - Peter M Bruno
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Building 76, 500 Main Street, Cambridge, MA, 02139, USA
| | - Chunxin Lu
- Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London, SE1 1DB, UK
| | - Michael T Hemann
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Building 76, 500 Main Street, Cambridge, MA, 02139, USA
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Boodram JN, Mcgregor IJ, Bruno PM, Cressey PB, Hemann MT, Suntharalingam K. Breast Cancer Stem Cell Potent Copper(II)-Non-Steroidal Anti-Inflammatory Drug Complexes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510443] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Iain J. Mcgregor
- Department of Chemistry; King's College London; London SE1 1DB UK
| | - Peter M. Bruno
- The Koch Institute for Integrative Cancer Research; Massachusetts Institute of Technology; Cambridge MA 02139 USA
| | - Paul B. Cressey
- Department of Chemistry; King's College London; London SE1 1DB UK
| | - Michael T. Hemann
- The Koch Institute for Integrative Cancer Research; Massachusetts Institute of Technology; Cambridge MA 02139 USA
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Boodram JN, Mcgregor IJ, Bruno PM, Cressey PB, Hemann MT, Suntharalingam K. Breast Cancer Stem Cell Potent Copper(II)-Non-Steroidal Anti-Inflammatory Drug Complexes. Angew Chem Int Ed Engl 2016; 55:2845-50. [PMID: 26806362 DOI: 10.1002/anie.201510443] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 12/28/2015] [Indexed: 12/12/2022]
Abstract
The breast cancer stem cell (CSC) potency of a series of copper(II)-phenanthroline complexes containing the nonsteroidal anti-inflammatory drug (NSAID), indomethacin, is reported. The most effective copper(II) complex in this series, 4, selectivity kills breast CSC-enriched HMLER-shEcad cells over breast CSC-depleted HMLER cells. Furthermore, 4 reduces the formation, size, and viability of mammospheres, to a greater extent than salinomycin, a potassium ionophore known to selectively inhibit CSCs. Mechanistic studies revealed that the CSC-specificity observed for 4 arises from its ability to generate intracellular reactive oxygen species (ROS) and inhibit cyclooxygenase-2 (COX-2), an enzyme that is overexpressed in breast CSCs. The former induces DNA damage, activates JNK and p38 pathways, and leads to apoptosis.
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Affiliation(s)
- Janine N Boodram
- Department of Chemistry, King's College London, London, SE1 1DB, UK
| | - Iain J Mcgregor
- Department of Chemistry, King's College London, London, SE1 1DB, UK
| | - Peter M Bruno
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Paul B Cressey
- Department of Chemistry, King's College London, London, SE1 1DB, UK
| | - Michael T Hemann
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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33
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Eskandari A, Boodram JN, Cressey PB, Lu C, Bruno PM, Hemann MT, Suntharalingam K. The breast cancer stem cell potency of copper(ii) complexes bearing nonsteroidal anti-inflammatory drugs and their encapsulation using polymeric nanoparticles. Dalton Trans 2016; 45:17867-17873. [DOI: 10.1039/c6dt03811e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This is the first report to demonstrate that polymeric nanoparticles can be used to effectively deliver CSC-potent metal complexes into CSCs.
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Affiliation(s)
| | | | | | - Chunxin Lu
- Department of Chemistry
- King's College London
- London
- UK
| | - Peter M. Bruno
- The Koch Institute for Integrative Cancer Research
- Massachusetts Institute of Technology
- USA
| | - Michael T. Hemann
- The Koch Institute for Integrative Cancer Research
- Massachusetts Institute of Technology
- USA
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34
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Lee BM, Cata JP. Impact of anesthesia on cancer recurrence. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2015; 62:570-575. [PMID: 26026503 DOI: 10.1016/j.redar.2015.04.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 03/31/2015] [Accepted: 04/02/2015] [Indexed: 06/04/2023]
Abstract
Surgery remains the mainstay treatment in the majority of solid cancers. Anesthetics and analgesics used during the perioperative period may modulate the innate and adaptive immune system, inflammation and angiogenesis, and have a direct effect on cancer cells that could ultimately modify oncological outcomes. For instance, volatile anesthetics and opioid analgesics have shown predominantly pro-tumor effects, while propofol, non-steroid anti-inflammatory drugs have mostly anticancer effects. Researchers have been especially interested in investigating the association between the use of regional anesthesia techniques and the postoperative survival of patients with cancers. Since the results of the current retrospective studies are conflicting, several researchers are conducting prospective randomized trials.
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Affiliation(s)
- B M Lee
- Department of Anaesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Cancer, Houston, TX, USA
| | - J P Cata
- Department of Anaesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Cancer, Houston, TX, USA; Anesthesia and Surgical Oncological Research Group, TX, USA.
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Kastrati I, Litosh VA, Zhao S, Alvarez M, Thatcher GRJ, Frasor J. A novel aspirin prodrug inhibits NFκB activity and breast cancer stem cell properties. BMC Cancer 2015; 15:845. [PMID: 26530254 PMCID: PMC4632459 DOI: 10.1186/s12885-015-1868-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 10/27/2015] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Activation of cyclooxygenase (COX)/prostaglandin and nuclear factor κB (NFκB) pathways can promote breast tumor initiation, growth, and progression to drug resistance and metastasis. Thus, anti-inflammatory drugs have been widely explored as chemopreventive and antineoplastic agents. Aspirin (ASA), in particular, is associated with reduced breast cancer incidence but gastrointestinal toxicity has limited its usefulness. To improve potency and minimize toxicity, ASA ester prodrugs have been developed, in which the carboxylic acid of ASA is masked and ancillary pharmacophores can be incorporated. To date, the effects of ASA and ASA prodrugs have been largely attributed to COX inhibition and reduced prostaglandin production. However, ASA has also been reported to inhibit the NFκB pathway at very high doses. Whether ASA prodrugs can inhibit NFκB signaling remains relatively unexplored. METHODS A library of ASA prodrugs was synthesized and screened for inhibition of NFκB activity and cancer stem-like cell (CSC) properties, an important PGE2-and NFκB-dependent phenotype of aggressive breast cancers. Inhibition of NFκB activity was determined by dual luciferase assay, RT-QPCR, p65 DNA binding activity and Western blots. Inhibition of CSC properties was determined by mammosphere growth, CD44(+)CD24(-)immunophenotype and tumorigenicity at limiting dilution. RESULTS While we identified multiple ASA prodrugs that are capable of inhibiting the NFκB pathway, several were associated with cytotoxicity. Of particular interest was GTCpFE, an ASA prodrug with fumarate as the ancillary pharmacophore. This prodrug potently inhibits NFκB activity without innate cytotoxicity. In addition, GTCpFE exhibited selective anti-CSC activity by reducing mammosphere growth and the CD44(+)CD24(-)immunophenotype. Moreover, GTCpFE pre-treated cells were less tumorigenic and, when tumors did form, latency was increased and growth rate was reduced. Structure-activity relationships for GTCpFE indicate that fumarate, within the context of an ASA prodrug, is essential for anti-NFκB activity, whereas both the ASA and fumarate moieties contributed to attenuated mammosphere growth. CONCLUSIONS These results establish GTCpFE as a prototype for novel ASA-and fumarate-based anti-inflammatory drugs that: (i) are capable of targeting CSCs, and (ii) may be developed as chemopreventive or therapeutic agents in breast cancer.
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Affiliation(s)
- Irida Kastrati
- Department of Physiology and Biophysics, University of Illinois at Chicago, 835 S. Wolcott, E202 MSB, MC901, Chicago, IL, 60612, USA.
| | - Vladislav A Litosh
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL, 60612, USA.
| | - Shuangping Zhao
- Department of Physiology and Biophysics, University of Illinois at Chicago, 835 S. Wolcott, E202 MSB, MC901, Chicago, IL, 60612, USA.
| | - Manuel Alvarez
- Department of Physiology and Biophysics, University of Illinois at Chicago, 835 S. Wolcott, E202 MSB, MC901, Chicago, IL, 60612, USA.
| | - Gregory R J Thatcher
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL, 60612, USA.
| | - Jonna Frasor
- Department of Physiology and Biophysics, University of Illinois at Chicago, 835 S. Wolcott, E202 MSB, MC901, Chicago, IL, 60612, USA.
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Guo Z, Jiang JH, Zhang J, Yang HJ, Yang FQ, Qi YP, Zhong YP, Su J, Yang RR, Li LQ, Xiang BD. COX-2 Promotes Migration and Invasion by the Side Population of Cancer Stem Cell-Like Hepatocellular Carcinoma Cells. Medicine (Baltimore) 2015; 94:e1806. [PMID: 26554780 PMCID: PMC4915881 DOI: 10.1097/md.0000000000001806] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cancer stem cells (CSCs) are thought to be responsible for tumor relapse and metastasis due to their abilities to self-renew, differentiate, and give rise to new tumors. Cyclooxygenase-2 (COX-2) is highly expressed in several kinds of CSCs, and it helps promote stem cell renewal, proliferation, and radioresistance. Whether and how COX-2 contributes to CSC migration and invasion is unclear. In this study, COX-2 was overexpressed in the CSC-like side population (SP) of the human hepatocellular carcinoma (HCC) cell line HCCLM3. COX-2 overexpression significantly enhanced migration and invasion of SP cells, while reducing expression of metastasis-related proteins PDCD4 and PTEN. Treating SP cells with the selective COX-2 inhibitor celecoxib down-regulated COX-2 and caused a dose-dependent reduction in cell migration and invasion, which was associated with up-regulation of PDCD4 and PTEN. These results suggest that COX-2 exerts pro-metastatic effects on SP cells, and that these effects are mediated at least partly through regulation of PDCD4 and PTEN expression. These results further suggest that celecoxib may be a promising anti-metastatic agent to reduce migration and invasion by hepatic CSCs.
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Affiliation(s)
- Zhe Guo
- From the Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, P.R. China (ZG, H-JY, F-QY, Y-PQ, L-QL, B-DX); Department of Thyroid and Breast Surgery, The Central Hospital of Wuhan, Wuhan, P.R. China (ZG); Department of General Surgery, The Second People's Hospital of The Second People's Hospital of Jingmen, Jingmen, P.R. China (J-HJ); Department of Ultrasound, Wuhan No. 1 Hospital, Wuhan, P.R. China (JZ); Medical Science Experimental Center, Guangxi Medical University, Nanning, P.R. China (Y-PZ, JS); Department of Immunology, School of Preclinical Medicine, Biological Targeting Diagnosis and Therapy Research Center, Guangxi Medical University, Nanning, P.R. China (R-RY)
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Huang J, Zhang D, Xie F, Lin D. The potential role of COX-2 in cancer stem cell-mediated canine mammary tumor initiation: an immunohistochemical study. J Vet Sci 2015; 16:225-31. [PMID: 26124697 PMCID: PMC4483507 DOI: 10.4142/jvs.2015.16.2.225] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 01/11/2015] [Accepted: 01/29/2015] [Indexed: 12/12/2022] Open
Abstract
Increasing evidence suggests that cancer stem cells (CSCs) are responsible for tumor initiation and maintenance. Additionally, it is becoming apparent that cyclooxygenase (COX) signaling is associated with canine mammary tumor development. The goals of the present study were to investigate COX-2 expression patterns and their effect on CSC-mediated tumor initiation in primary canine mammary tissues and tumorsphere models using immunohistochemistry. Patterns of COX-2, CD44, octamer-binding transcription factor (Oct)-3/4, and epidermal growth factor receptor (EGFR) expression were examined in malignant mammary tumor (MMT) samples and analyzed in terms of clinicopathological characteristics. COX-2 and Oct-3/4 expression was higher in MMTs compared to other histological samples with heterogeneous patterns. In MMTs, COX-2 expression correlated with tumor malignancy features. Significant associations between COX-2, CD44, and EGFR were observed in low-differentiated MMTs. Comparative analysis showed that the levels of COX-2, CD44, and Oct-3/4 expression varied significantly among TSs of three histological grades. Enhanced COX-2 staining was consistently observed in TSs. Similar levels of staining intensity were found for CD44 and Oct-3/4, but EGFR expression was weak. Our findings indicate the potential role of COX-2 in CSC-mediated tumor initiation, and suggest that COX-2 inhibition may help treat canine mammary tumors by targeting CSCs.
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Affiliation(s)
- Jian Huang
- Department of Veterinary Clinical Science, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China. ; Department of Veterinary Science, College of Life Science and Technology, Southwest University for Nationalities, Chengdu 610041, China
| | - Di Zhang
- Department of Veterinary Clinical Science, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Fuqiang Xie
- Department of Veterinary Clinical Science, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Degui Lin
- Department of Veterinary Clinical Science, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
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Tu B, Ma TT, Peng XQ, Wang Q, Yang H, Huang XL. Targeting of COX-2 Expression by Recombinant Adenovirus shRNA Attenuates the Malignant Biological Behavior of Breast Cancer Cells. Asian Pac J Cancer Prev 2014; 15:8829-36. [DOI: 10.7314/apjcp.2014.15.20.8829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Majumder M, Xin X, Liu L, Girish GV, Lala PK. Prostaglandin E2 receptor EP4 as the common target on cancer cells and macrophages to abolish angiogenesis, lymphangiogenesis, metastasis, and stem-like cell functions. Cancer Sci 2014; 105:1142-51. [PMID: 24981602 PMCID: PMC4462388 DOI: 10.1111/cas.12475] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/21/2014] [Accepted: 06/26/2014] [Indexed: 01/09/2023] Open
Abstract
We previously established that COX-2 overexpression promotes breast cancer progression and metastasis. As long-term use of COX-2 inhibitors (COX-2i) can promote thrombo-embolic events, we tested an alternative target, prostaglandin E2 receptor EP4 subtype (EP4), downstream of COX-2. Here we used the highly metastatic syngeneic murine C3L5 breast cancer model to test the role of EP4-expressing macrophages in vascular endothelial growth factor (VEGF)-C/D production, angiogenesis, and lymphangiogenesis in situ, the role of EP4 in stem-like cell (SLC) functions of tumor cells, and therapeutic effects of an EP4 antagonist RQ-15986 (EP4A). C3L5 cells expressed all EP receptors, produced VEGF-C/D, and showed high clonogenic tumorsphere forming ability in vitro, functions inhibited with COX-2i or EP4A. Treating murine macrophage RAW 264.7 cell line with COX-2i celecoxib and EP4A significantly reduced VEGF-A/C/D production in vitro, measured with quantitative PCR and Western blots. Orthotopic implants of C3L5 cells in C3H/HeJ mice showed rapid tumor growth, angiogenesis, lymphangiogenesis (CD31/LYVE-1 and CD31/PROX1 immunostaining), and metastasis to lymph nodes and lungs. Tumors revealed high incidence of EP4-expressing, VEGF-C/D producing macrophages identified with dual immunostaining of F4/80 and EP4 or VEGF-C/D. Celecoxib or EP4A therapy at non-toxic doses abrogated tumor growth, lymphangiogenesis, and metastasis to lymph nodes and lungs. Residual tumors in treated mice revealed markedly reduced VEGF-A/C/D and phosphorylated Akt/ERK proteins, VEGF-C/D positive macrophage infiltration, and proliferative/apoptotic cell ratios. Knocking down COX-2 or EP4 in C3L5 cells or treating cells in vitro with celecoxib or EP4A and treating tumor-bearing mice in vivo with the same drug reduced SLC properties of tumor cells including preferential co-expression of COX-2 and SLC markers ALDH1A, CD44, OCT-3/4, β-catenin, and SOX-2. Thus, EP4 is an excellent therapeutic target to block stem-like properties, angiogenesis, and lymphangiogenesis induced by VEGF-A/C/D secreted by cancer cells and tumor infiltrating macrophages.
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MESH Headings
- Adenocarcinoma/blood supply
- Adenocarcinoma/drug therapy
- Adenocarcinoma/secondary
- Animals
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Apoptosis
- Benzamides/pharmacology
- Benzamides/therapeutic use
- Celecoxib
- Cell Line, Tumor
- Cell Proliferation
- Cyclooxygenase 2/metabolism
- Drug Screening Assays, Antitumor
- Female
- Lung Neoplasms/blood supply
- Lung Neoplasms/drug therapy
- Lung Neoplasms/secondary
- Lymphangiogenesis
- Lymphatic Metastasis
- Macrophages/metabolism
- Mammary Neoplasms, Experimental/blood supply
- Mammary Neoplasms, Experimental/drug therapy
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Inbred C3H
- Molecular Targeted Therapy
- Neoplasm Transplantation
- Neoplastic Stem Cells
- Neovascularization, Pathologic/drug therapy
- Pyrazoles/pharmacology
- Pyrazoles/therapeutic use
- Receptors, Prostaglandin E, EP4 Subtype/antagonists & inhibitors
- Receptors, Prostaglandin E, EP4 Subtype/metabolism
- Sulfonamides/pharmacology
- Sulfonamides/therapeutic use
- Tumor Burden
- Vascular Endothelial Growth Factor A/metabolism
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Affiliation(s)
- Mousumi Majumder
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western OntarioLondon, Ontario, Canada
| | - Xiping Xin
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western OntarioLondon, Ontario, Canada
| | - Ling Liu
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western OntarioLondon, Ontario, Canada
| | - Gannareddy V Girish
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western OntarioLondon, Ontario, Canada
| | - Peeyush K Lala
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western OntarioLondon, Ontario, Canada
- Department of Oncology, Schulich School of Medicine and Dentistry, University of Western OntarioLondon, Ontario, Canada
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Prostaglandin E receptor EP4 is a therapeutic target in breast cancer cells with stem-like properties. Breast Cancer Res Treat 2013; 143:19-31. [PMID: 24281828 PMCID: PMC3889836 DOI: 10.1007/s10549-013-2779-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 11/15/2013] [Indexed: 01/15/2023]
Abstract
The cyclooxygenase pathway is strongly implicated in breast cancer progression but the role of this pathway in the biology of breast cancer stem/progenitor cells has not been defined. Recent attention has focused on targeting the cyclooxygenase 2 (COX-2) pathway downstream of the COX-2 enzyme by blocking the activities of individual prostaglandin E (EP) receptors. Prostaglandin E receptor 4 (EP4) is widely expressed in primary invasive ductal carcinomas of the breast and antagonizing this receptor with small molecule inhibitors or shRNA directed to EP4 inhibits metastatic potential in both syngeneic and xenograft models. Breast cancer stem/progenitor cells are defined as a subpopulation of cells that drive tumor growth, metastasis, treatment resistance, and relapse. Mammosphere-forming breast cancer cells of human (MDA-MB-231, SKBR3) or murine (66.1, 410.4) origin of basal-type, Her-2 phenotype and/or with heightened metastatic capacity upregulate expression of both EP4 and COX-2 and are more tumorigenic compared to the bulk population. In contrast, luminal-type or non-metastatic counterparts (MCF7, 410, 67) do not increase COX-2 and EP4 expression in mammosphere culture. Treatment of mammosphere-forming cells with EP4 inhibitors (RQ-15986, AH23848, Frondoside A) or EP4 gene silencing, but not with a COX inhibitor (Indomethacin) reduces both mammosphere-forming capacity and the expression of phenotypic markers (CD44hi/CD24low, aldehyde dehydrogenase) of breast cancer stem cells. Finally, an orally delivered EP4 antagonist (RQ-08) reduces the tumor-initiating capacity and markedly inhibits both the size of tumors arising from transplantation of mammosphere-forming cells and phenotypic markers of stem cells in vivo. These studies support the continued investigation of EP4 as a potential therapeutic target and provide new insight regarding the role of EP4 in supporting a breast cancer stem cell/tumor-initiating phenotype.
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41
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Ash SA, Buggy DJ. Does regional anaesthesia and analgesia or opioid analgesia influence recurrence after primary cancer surgery? An update of available evidence. Best Pract Res Clin Anaesthesiol 2013; 27:441-56. [PMID: 24267550 DOI: 10.1016/j.bpa.2013.10.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 10/07/2013] [Indexed: 12/12/2022]
Abstract
Cancer continues to be a key cause of morbidity and mortality worldwide and its overall incidence continues to increase. Anaesthetists are increasingly faced with the challenge of managing cancer patients, for surgical resection to debulk or excise the primary tumour, or for surgical emergencies in patients on chemotherapy or for the analgesic management of disease- or treatment-related chronic pain. Metastatic recurrence is a concern. Surgery and a number of perioperative factors are suspected to accelerate tumour growth and potentially increase the risk of metastatic recurrence. Retrospective analyses have suggested an association between anaesthetic technique and cancer outcomes, and anaesthetists have sought to ameliorate the consequences of surgical trauma and minimise the impact of anaesthetic interventions. Just how anaesthesia and analgesia impact cancer recurrence and consequent survival is very topical, as understanding the potential mechanisms and interactions has an impact on the anaesthetist's ability to contribute to the successful outcome of oncological interventions. The outcome of ongoing, prospective, randomized trials are awaited with interest.
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Affiliation(s)
- Simon A Ash
- Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland.
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Nolting DD, Nickels M, Tantawy MN, Yu JYH, Xie J, Peterson TE, Crews BC, Marnett L, Gore JC, Pham W. Convergent synthesis and evaluation of (18)F-labeled azulenic COX2 probes for cancer imaging. Front Oncol 2013; 2:207. [PMID: 23316477 PMCID: PMC3539664 DOI: 10.3389/fonc.2012.00207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 12/13/2012] [Indexed: 11/13/2022] Open
Abstract
The overall objectives of this research are to (i) develop azulene-based positron emission tomography (PET) probes and (ii) image COX2 as a potential biomarker of breast cancer. Several lines of research have demonstrated that COX2 is overexpressed in breast cancer and that its presence correlates with poor prognoses. While other studies have reported that COX2 inhibition can be modulated and used beneficially as a chemopreventive strategy in cancer, no viable mechanism for achieving that approach has yet been developed. This shortfall could be circumvented through in vivo imaging of COX2 activity, particularly using sensitive imaging techniques such as PET. Toward that goal, our laboratory focuses on the development of novel (18)F-labled COX2 probes. We began the synthesis of the probes by transforming tropolone into a lactone, which was subjected to an [8 + 2] cycloaddition reaction to yield 2-methylazulene as the core ring of the probe. After exploring numerous synthetic routes, the final target molecule and precursor PET compounds were prepared successfully using convergent synthesis. Conventional (18)F labeling methods caused precursor decomposition, which prompted us to hypothesize that the acidic protons of the methylene moiety between the azulene and thiazole rings were readily abstracted by a strong base such as potassium carbonate. Ultimately, this caused the precursors to disintegrate. This observation was supported after successfully using an (18)F labeling strategy that employed a much milder phosphate buffer. The (18)F-labeled COX2 probe was tested in a breast cancer xenograft mouse model. The data obtained via successive whole-body PET/CT scans indicated probe accumulation and retention in the tumor. Overall, the probe was stable in vivo and no defluorination was observed. A biodistribution study and Western blot analysis corroborate with the imaging data. In conclusion, this novel COX2 PET probe was shown to be a promising agent for cancer imaging and deserves further investigation.
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Affiliation(s)
- Donald D Nolting
- Department of Radiology, Institute of Imaging Science, Vanderbilt University Nashville, TN, USA
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Bitarte N, Bandres E, Boni V, Zarate R, Rodriguez J, Gonzalez-Huarriz M, Lopez I, Javier Sola J, Alonso MM, Fortes P, Garcia-Foncillas J. MicroRNA-451 is involved in the self-renewal, tumorigenicity, and chemoresistance of colorectal cancer stem cells. Stem Cells 2012; 29:1661-71. [PMID: 21948564 DOI: 10.1002/stem.741] [Citation(s) in RCA: 230] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Many antitumor therapies affect rapidly dividing cells. However, tumor proliferation may be driven by cancer stem cells (CSCs), which divide slowly and are relatively resistant to cytotoxic drugs. Thus, many tumors may progress because CSCs are not sensitive to the treatment. In this work, we searched for target genes whose expression is involved in proliferation and chemoresistance of CSCs. Both of these processes could be controlled simultaneously by cell regulators such as microRNAs (miRNAs). Therefore, colonospheres with properties of CSCs were obtained from different colon carcinoma cells, and miRNA profiling was performed. The results showed that miR-451 was downregulated in colonspheres versus parental cells. Surprisingly, expression of miR-451 caused a decrease in self-renewal, tumorigenicity, and chemoresistance to irinotecan of colonspheres. We identified cyclooxygenase-2 (COX-2) as an indirect miR-451 target gene involved in sphere growth. Our results indicate that miR-451 downregulation allows the expression of the direct target gene macrophage migration inhibitory factor, involved in the expression of COX-2. In turn, COX-2 allows Wnt activation, which is essential for CSC growth. Furthermore, miR-451 restoration decreases expression of the ATP-binding cassette drug transporter ABCB1 and results in irinotecan sensitization. These findings correlate well with the lower expression of miR-451 observed in patients who did not respond to irinotecan-based first-line therapy compared with patients who did. Our data suggest that miR-451 is a novel candidate to circumvent recurrence and drug resistance in colorectal cancer and could be used as a marker to predict response to irinotecan in patients with colon carcinoma.
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Affiliation(s)
- Nerea Bitarte
- Laboratory of Pharmacogenomics, Division of Oncology, Center for Applied Medical Research, CIMA, University of Navarra, Pamplona, Spain
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Wouters J, Stas M, Govaere O, Van den Eynde K, Vankelecom H, van den Oord JJ. Gene expression changes in melanoma metastases in response to high-dose chemotherapy during isolated limb perfusion. Pigment Cell Melanoma Res 2012; 25:454-65. [PMID: 22486811 DOI: 10.1111/j.1755-148x.2012.01004.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Despite recent advances in melanoma therapy, disseminated melanoma still lacks effective treatment, and recurrence of the tumor frequently occurs, even after high-dose chemotherapy. The mechanisms responsible for this chemoresistance or for the formation of new relapses remain poorly understood. Using a human 'model', in which the isolated limb is perfused with high doses of the chemotherapeutic melphalan (ILP), we identified a five-gene set (ATF3, CYR61, IER5, IL6, and PTGS2) of stress-induced genes that was consistently upregulated after ILP in all in-transit metastatic melanoma samples as well as in three melphalan-treated melanoma cell lines. Early post-ILP relapses retained these elevated expressions, whereas the expression of these genes returned to their original levels in late post-ILP recurrences. In addition, we identified upregulation of these genes in the A375 cell line's side population (SP) and melanospheres, established methods to enrich for candidate cancer stem cells (CSCs), which are considered chemoresistant and tumorigenic, and thus proposed to be responsible for tumor relapse. Our data identify an immediate and short-term upregulation of early stress-responsive genes that are potentially linked to chemoresistance and CSCs.
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Affiliation(s)
- Jasper Wouters
- Translational Cell & Tissue Research, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.
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Selection of metastatic breast cancer cells based on adaptability of their metabolic state. PLoS One 2012; 7:e36510. [PMID: 22570721 PMCID: PMC3343010 DOI: 10.1371/journal.pone.0036510] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 04/09/2012] [Indexed: 11/26/2022] Open
Abstract
A small subpopulation of highly adaptable breast cancer cells within a vastly heterogeneous population drives cancer metastasis. Here we describe a function-based strategy for selecting rare cancer cells that are highly adaptable and drive malignancy. Although cancer cells are dependent on certain nutrients, e.g., glucose and glutamine, we hypothesized that the adaptable cancer cells that drive malignancy must possess an adaptable metabolic state and that such cells could be identified using a robust selection strategy. As expected, more than 99.99% of cells died upon glutamine withdrawal from the aggressive breast cancer cell line SUM149. The rare cells that survived and proliferated without glutamine were highly adaptable, as judged by additional robust adaptability assays involving prolonged cell culture without glucose or serum. We were successful in isolating rare metabolically plastic glutamine-independent (Gln-ind) variants from several aggressive breast cancer cell lines that we tested. The Gln-ind cells overexpressed cyclooxygenase-2, an indicator of tumor aggressiveness, and they were able to adjust their glutaminase level to suit glutamine availability. The Gln-ind cells were anchorage-independent, resistant to chemotherapeutic drugs doxorubicin and paclitaxel, and resistant to a high concentration of a COX-2 inhibitor celecoxib. The number of cells being able to adapt to non-availability of glutamine increased upon prior selection of cells for resistance to chemotherapy drugs or resistance to celecoxib, further supporting a linkage between cellular adaptability and therapeutic resistance. Gln-ind cells showed indications of oxidative stress, and they produced cadherin11 and vimentin, indicators of mesenchymal phenotype. Gln-ind cells were more tumorigenic and more metastatic in nude mice than the parental cell line as judged by incidence and time of occurrence. As we decreased the number of cancer cells in xenografts, lung metastasis and then primary tumor growth was impaired in mice injected with parental cell line, but not in mice injected with Gln-ind cells.
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Singh B, Irving LR, Tai K, Lucci A. Overexpression of COX-2 in celecoxib-resistant breast cancer cell lines. J Surg Res 2010; 163:235-43. [PMID: 20691996 DOI: 10.1016/j.jss.2010.04.061] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Revised: 03/29/2010] [Accepted: 04/30/2010] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cyclooxygenase-2 (COX-2) plays a key role in breast cancer progression and metastasis. Effective therapeutic targeting of COX-2 would require the knowledge of whether a tumor is addicted to COX-2, and if we can counter the potential resistance to anti-COX-2 therapy. Herein we tested the hypothesis that celecoxib-resistance involves selection of cancer cells that overexpress COX-2. MATERIALS AND METHODS We selected celecoxib-resistant (CER) variants from two metastatic cell lines, SUM149 inflammatory breast cancer (IBC) cell line and MDA-MB-231-BSC60 cell line, by culturing them in the presence of celecoxib. We measured the relative levels of COX-2 protein and its network components Bcl-2, Bcl-xL, and Bax in the parental cell lines and their CER variants by Western blotting. To determine whether celecoxib resistance would increase tumorigenicity, we performed an in vitro clonogenicity assay. We determined the statistical significance of differences between the groups using the two-sample t-test. RESULTS Both the celecoxib-resistant cell lines SUM149-CER and BSC60-CER produced significantly higher levels of COX-2 protein than their parental counterparts (P < 0.05). The CER variants produced a reduced level of pro-apoptosis protein Bax (both cell lines) and increased levels of anti-apoptosis proteins Bcl-2 (BSC60) or Bcl-xL (SUM149). Importantly, the CER variants had significantly higher clonogenicity than their parental cell lines (P < 0.05). The siRNA-mediated COX-2 knockdown in SUM149-CER cell line resulted in a significant decrease in clonogenicity and in Bcl-xL and Bcl-2 protein levels, thus supporting our hypothesis. CONCLUSION Celecoxib-resistant variant cells present in breast cancer cell lines overexpress COX-2, which is robustly linked with survival pathways and clonogenicity. Since COX-2 is important in the variant cancer cells of aggressive nature, it represents a good therapeutic target.
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Affiliation(s)
- Balraj Singh
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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