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Guzmán EA, Peterson TA, Wright AE. The Marine Natural Compound Dragmacidin D Selectively Induces Apoptosis in Triple-Negative Breast Cancer Spheroids. Mar Drugs 2023; 21:642. [PMID: 38132962 PMCID: PMC10871089 DOI: 10.3390/md21120642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
Cancer cells grown in 3D spheroid cultures are considered more predictive for clinical efficacy. The marine natural product dragmacidin D induces apoptosis in MDA-MB-231 and MDA-MB-468 triple-negative breast cancer (TNBC) spheroids within 24 h of treatment while showing no cytotoxicity against the same cells grown in monolayers and treated for 72 h. The IC50 for cytotoxicity based on caspase 3/7 cleavage in the spheroid assay was 8 ± 1 µM in MDA-MB-231 cells and 16 ± 0.6 µM in MDA-MB-468 cells at 24 h. No cytotoxicity was seen at all in 2D, even at the highest concentration tested. Thus, the IC50 for cytotoxicity in the MTT assay (2D) in these cells was found to be >75 µM at 72 h. Dragmacidin D exhibited synergy when used in conjunction with paclitaxel, a current treatment for TNBC. Studies into the signaling changes using a reverse-phase protein array showed that treatment with dragmacidin D caused significant decreases in histones. Differential protein expression was used to hypothesize that its potential mechanism of action involves acting as a protein synthesis inhibitor or a ribonucleotide reductase inhibitor. Further testing is necessary to validate this hypothesis. Dragmacidin D also caused a slight decrease in an invasion assay in the MDA-MB-231 cells, although this failed to be statistically significant. Dragmacidin D shows intriguing selectivity for spheroids and has the potential to be a treatment option for triple-negative breast cancer, which merits further research into understanding this activity.
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Affiliation(s)
- Esther A. Guzmán
- Marine Biomedical and Biotechnology Research, Harbor Branch Oceanographic Institute, Florida Atlantic University, 5600 US 1 North, Fort Pierce, FL 34946, USA; (T.A.P.); (A.E.W.)
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2
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Shi X, Li H, Dan Z, Shu C, Zhu R, Yang Q, Wang Y, Zhu H. Melatonin Potentiates Sensitivity to 5-Fluorouracil in Gastric Cancer Cells by Upregulating Autophagy and Downregulating Myosin Light-Chain Kinase. J Cancer 2023; 14:2608-2618. [PMID: 37779875 PMCID: PMC10539390 DOI: 10.7150/jca.85353] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/23/2023] [Indexed: 10/03/2023] Open
Abstract
5-Fluorouracil is an effective chemotherapeutic drug for gastric cancer. However, the acquisition of chemotherapeutic resistance remains a challenge in treatment. Melatonin can enhance the therapeutic effect of 5-fluorouracil; however, the underlying mechanisms are not well understood. We investigated the effects of combinations of melatonin and 5-fluorouracil on the proliferation, migration and invasion of gastric cancer cells. Melatonin significantly potentiated the 5-fluorouracil-mediated inhibition of proliferation, migration and invasion in gastric cancer cells, which potentiates sensitivity to 5-FU by promoting the activation of Beclin-1-dependent autophagy and targeting the myosin light-chain kinase (MLCK) signaling pathway. Previous studies have shown that autophagy might be associated with the MLCK signaling pathway. The autophagy inhibitor, 3-methyladenine, effectively rescued the migratory and invasive capabilities of gastric cancer cells, while also reducing expression level of MLCK and the phosphorylation level of MLC. This indicates that autophagy is involved in tumor metastasis, which may be related to inhibition of the MLCK signaling pathway. Our findings indicate that melatonin can improve the effectiveness of 5-fluorouracil in gastric cancer and could be used as a supplemental agent in the treatment of gastric cancer with 5-fluorouracil.
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Affiliation(s)
- Xiaorui Shi
- Laboratory of Molecular Biology, Department of Biochemistry, Anhui Medical University, Hefei 230032, China
| | - Hongxia Li
- Department of Oncology, The Third Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Zhangyong Dan
- Laboratory of Molecular Biology, Department of Biochemistry, Anhui Medical University, Hefei 230032, China
| | - Chuanlin Shu
- Laboratory of Molecular Biology, Department of Biochemistry, Anhui Medical University, Hefei 230032, China
| | - Rumeng Zhu
- Laboratory of Molecular Biology, Department of Biochemistry, Anhui Medical University, Hefei 230032, China
| | - Qingling Yang
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Anhui 233030, China
| | - Yi Wang
- Laboratory of Molecular Biology, Department of Biochemistry, Anhui Medical University, Hefei 230032, China
- Department of Biological Engineering, School of Life Sciences, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Anhui 233030, China
| | - Huaqing Zhu
- Laboratory of Molecular Biology, Department of Biochemistry, Anhui Medical University, Hefei 230032, China
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3
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Qi L, Knifley T, Chen M, O'Connor KL. Integrin α6β4 requires plectin and vimentin for adhesion complex distribution and invasive growth. J Cell Sci 2022; 135:273711. [PMID: 34897465 PMCID: PMC8917354 DOI: 10.1242/jcs.258471] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 12/01/2021] [Indexed: 01/30/2023] Open
Abstract
Integrin α6β4 binds plectin to associate with vimentin; however, the biological function remains unclear. Here, we utilized various integrin β4 mutants and CRISPR-Cas9 editing to investigate this association. Upon laminin binding, integrin α6β4 distinctly distributed peripherally as well as centrally, proximal to the nucleus. Upon fibronectin addition, integrin α6β4 was centrally recruited to large focal adhesions (FAs) and enhanced Fak (also known as PTK2) phosphorylation. Integrin β4 plectin-binding mutants or genetic deletion of plectin inhibited β4 recruitment to FAs and integrin α6β4-enhanced cell spreading, migration and three-dimensional invasive growth. Loss of the β4 signaling domain (but retaining plectin binding) blocked migration and invasiveness but not cell spreading, recruitment to FAs or colony growth. Immunostaining revealed that integrin α6β4 redistributed vimentin perinuclearly, where it colocalized with plectin and FAs. Depletion of vimentin completely blocked integrin β4-enhanced invasive growth, Fak phosphorylation and proliferation in three dimensions but not two dimensions. In summary, we demonstrate the essential roles of plectin and vimentin in promoting an invasive phenotype downstream of integrin α6β4. This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Lei Qi
- Markey Cancer Center, University of Kentucky, Lexington 40506-0509, USA,Departments of Molecular and Cellular Biochemistry, University of Kentucky, Lexington 40506-0509, USA
| | - Teresa Knifley
- Markey Cancer Center, University of Kentucky, Lexington 40506-0509, USA,Departments of Molecular and Cellular Biochemistry, University of Kentucky, Lexington 40506-0509, USA
| | - Min Chen
- Markey Cancer Center, University of Kentucky, Lexington 40506-0509, USA,Toxicology and Cancer Biology, University of Kentucky, Lexington 40506-0509, USA
| | - Kathleen L. O'Connor
- Markey Cancer Center, University of Kentucky, Lexington 40506-0509, USA,Departments of Molecular and Cellular Biochemistry, University of Kentucky, Lexington 40506-0509, USA,Author for correspondence ()
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4
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Cxcl10 chemokine induces migration of ING4-deficient breast cancer cells via a novel crosstalk mechanism between the Cxcr3 and Egfr receptors. Mol Cell Biol 2021; 42:e0038221. [PMID: 34871062 DOI: 10.1128/mcb.00382-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The chemokine Cxcl10 has been associated with poor prognosis in breast cancer, but the mechanism is not well understood. Our previous study have shown that CXCL10 was repressed by the ING4 tumor suppressor, suggesting a potential inverse functional relationship. We thus investigated a role for Cxcl10 in the context of ING4 deficiencies in breast cancer. We first analyzed public gene expression datasets and found that patients with CXCL10-high/ING4-low expressing tumors had significantly reduced disease-free survival in breast cancer. In vitro, Cxcl10 induced migration of ING4-deleted breast cancer cells, but not of ING4-intact cells. Using inhibitors, we found that Cxcl10-induced migration of ING4-deleted cells required Cxcr3, Egfr, and the Gβγ subunits downstream of Cxcr3, but not Gαi. Immunofluorescent imaging showed that Cxcl10 induced early transient colocalization between Cxcr3 and Egfr in both ING4-intact and ING4-deleted cells, which recurred only in ING4-deleted cells. A peptide agent that binds to the internal juxtamembrane domain of Egfr inhibited Cxcr3/Egfr colocalization and cell migration. Taken together, these results presented a novel mechanism of Cxcl10 that elicits migration of ING4-deleted cells, in part by inducing a physical or proximal association between Cxcr3 and Egfr and signaling downstream via Gβγ. These results further indicated that ING4 plays a critical role in the regulation of Cxcl10 signaling that enables breast cancer progression.
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5
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Ray R, Jangde N, Singh SK, Sinha S, Rai V. Lysophosphatidic acid-RAGE axis promotes lung and mammary oncogenesis via protein kinase B and regulating tumor microenvironment. Cell Commun Signal 2020; 18:170. [PMID: 33109194 PMCID: PMC7592382 DOI: 10.1186/s12964-020-00666-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
Background Receptor for advanced glycation end products (RAGE) is a multi-ligand transmembrane receptor of the immunoglobulin superfamily. Lysophosphatidic acid (LPA) is a ligand for RAGE and is involved in physiological and pathophysiological conditions including cancer. However, RAGE-LPA axis is unexplored in lung and mammary cancer. Methods RAGE was silenced in A549, MDA MB-231 and MCF7 using RAGE shRNA. For in vitro tumorigenesis, we performed wound healing, colony formation, cell proliferation and invasion assays. Evaluation of expression of oncogenes, EMT markers and downstream signaling molecules was done by using western blot and immunohistochemistry. For subcellular expression of RAGE, immunofluorescence was done. In vivo tumorigenesis was assessed by intraperitoneal injection of cancer cells in nude mice. Results Here we show RAGE mediated profound increase in proliferation, migration and invasion of lung and mammary cancer cells via LPA in Protein kinase B (PKB) dependent manner. LPA mediated EMT transition is regulated by RAGE. In vivo xenograft results show significance of RAGE in LPA mediated lung and mammary tumor progression, angiogenesis and immune cell infiltration to tumor microenvironment. Conclusion Our results establish the significance and involvement of RAGE in LPA mediated lung and mammary tumor progression and EMT transition via RAGE. RAGE-LPA axis may be a therapeutic target in lung and mammary cancer treatment strategies. Video Abstract
Supplementary information Supplementary information accompanies this paper at 10.1186/s12964-020-00666-y.
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Affiliation(s)
- Rashmi Ray
- Laboratory of Vascular Immunology, Institute of Life Sciences, (An Autonomous Institute of Department of Biotechnology (DBT) New Delhi), Bhubaneswar, 751023, India
| | - Nitish Jangde
- Laboratory of Vascular Immunology, Institute of Life Sciences, (An Autonomous Institute of Department of Biotechnology (DBT) New Delhi), Bhubaneswar, 751023, India.,Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Satyendra Kumar Singh
- Laboratory of Vascular Immunology, Institute of Life Sciences, (An Autonomous Institute of Department of Biotechnology (DBT) New Delhi), Bhubaneswar, 751023, India
| | - Sunita Sinha
- Laboratory of Vascular Immunology, Institute of Life Sciences, (An Autonomous Institute of Department of Biotechnology (DBT) New Delhi), Bhubaneswar, 751023, India.,Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Vivek Rai
- Laboratory of Vascular Immunology, Institute of Life Sciences, (An Autonomous Institute of Department of Biotechnology (DBT) New Delhi), Bhubaneswar, 751023, India.
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6
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Lu HY, Zhu JS, Zhang Z, Shen WJ, Jiang S, Long YF, Wu B, Ding T, Huan F, Wang SL. Hydroxytyrosol and Oleuropein Inhibit Migration and Invasion of MDA-MB-231 Triple-Negative Breast Cancer Cell via Induction of Autophagy. Anticancer Agents Med Chem 2020; 19:1983-1990. [PMID: 31333142 DOI: 10.2174/1871520619666190722101207] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/30/2019] [Accepted: 05/03/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Breast Cancer (BC) is the leading cause of cancer-related deaths among women. As such, novel chemotherapeutic agents are urgently needed, especially for Triple-Negative Breast Cancer (TNBC). Hydroxytyrosol (HT) and Oleuropein (OL) are rich in olive oil, which is associated with a low occurrence of BC. However, the effects and mechanisms of action of HT and OL in BC cells are still unclear. This study aimed to explore the molecular mechanisms underlying the antitumor effect of HT and OL in TNBC. METHODS TNBC MDA-MB-231 cells were treated with HT and OL in combination with Hepatocyte Growth Factor (HGF), rapamycin (Rapa, an inducer of autophagy) or 3-methyladenine (3-MA, an inhibitor of autophagy). Cell viability, migration, invasion, and autophagy signaling were analyzed by scratch assays, transwell migration assays, and Western blot analysis. RESULTS Treatment with HT or OL reduced MDA-MB-231 cell viability in a dose-dependent manner. MDAMB- 231 cells were more sensitive to HT treatment than OL treatment. Rapa treatment could significantly block HGF-induced MDA-MB-231 cell migration and invasion, suggesting that inhibition of autophagy could promote migration and invasion. Moreover, HT or OL treatment significantly suppressed HGF or 3-MA induced cell migration and invasion by reversing LC3-II/LC3-I and Beclin-1 downregulation and reversing p62 upregulation. CONCLUSION These data indicated that HT and OL may inhibit migration and invasion of TNBC cells by activating autophagy. These findings provide potential therapeutic strategies that target autophagy to limit the pathogenesis and progression of BC.
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Affiliation(s)
- Hui-Yuan Lu
- Animal, Plant and Food Inspection Center, Nanjing Customs, 39 Chuangzhi Rd., Nanjing 210017, China
| | - Jian-Sheng Zhu
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Zhan Zhang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Wei-Jian Shen
- Animal, Plant and Food Inspection Center, Nanjing Customs, 39 Chuangzhi Rd., Nanjing 210017, China
| | - Shan Jiang
- Animal, Plant and Food Inspection Center, Nanjing Customs, 39 Chuangzhi Rd., Nanjing 210017, China
| | - Yun-Feng Long
- Animal, Plant and Food Inspection Center, Nanjing Customs, 39 Chuangzhi Rd., Nanjing 210017, China
| | - Bin Wu
- Animal, Plant and Food Inspection Center, Nanjing Customs, 39 Chuangzhi Rd., Nanjing 210017, China
| | - Tao Ding
- Animal, Plant and Food Inspection Center, Nanjing Customs, 39 Chuangzhi Rd., Nanjing 210017, China
| | - Fei Huan
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Shou-Lin Wang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
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7
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Kitamura T, Kato Y, Brownlie D, Soong DYH, Sugano G, Kippen N, Li J, Doughty-Shenton D, Carragher N, Pollard JW. Mammary Tumor Cells with High Metastatic Potential Are Hypersensitive to Macrophage-Derived HGF. Cancer Immunol Res 2019; 7:2052-2064. [PMID: 31615815 DOI: 10.1158/2326-6066.cir-19-0234] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 06/21/2019] [Accepted: 10/10/2019] [Indexed: 12/14/2022]
Abstract
Metastasis-associated macrophages (MAM) promote persistent growth of breast cancer cells at the metastatic site and are, thus, an attractive therapeutic target to treat breast cancer metastasis, a leading cause of cancer-related death in women. However, the precise mechanisms behind MAM-mediated metastatic tumor outgrowth have not been fully elucidated. Using mouse models of metastatic breast cancer, we showed that MAMs uniquely expressed hepatocyte growth factor (HGF) in metastatic tumors. We also demonstrated that a selected population of cancer cells with high metastatic potential (cancer cells that can establish metastatic tumors in mice with higher number and incidence than parental cells) had higher expression of HGF receptor, MNNG HOS transforming gene (MET), and were more responsive to HGF released from macrophages compared with the parental cells. Blockade of MET signaling in cancer cells suppressed metastatic tumor expansion, in part, through activation of natural killer cells. Results from this study suggest an approach to prevent life-threatening metastatic tumor formation using blockade of MAM-induced MET signal activation in metastatic cancer cells.
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Affiliation(s)
- Takanori Kitamura
- Royal (Dick) School of Veterinary Studies and Roslin Institute, The University of Edinburgh, Edinburgh, United Kingdom. .,MRC Centre for Reproductive Health, The University of Edinburgh, Edinburgh, United Kingdom
| | - Yu Kato
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York
| | - Demi Brownlie
- MRC Centre for Reproductive Health, The University of Edinburgh, Edinburgh, United Kingdom
| | - Daniel Y H Soong
- MRC Centre for Reproductive Health, The University of Edinburgh, Edinburgh, United Kingdom
| | - Gaël Sugano
- MRC Centre for Reproductive Health, The University of Edinburgh, Edinburgh, United Kingdom
| | - Nicolle Kippen
- MRC Centre for Reproductive Health, The University of Edinburgh, Edinburgh, United Kingdom
| | - Jiufeng Li
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York
| | - Dahlia Doughty-Shenton
- Edinburgh Phenotypic Assay Centre, The University of Edinburgh, Edinburgh, United Kingdom
| | - Neil Carragher
- Edinburgh Phenotypic Assay Centre, The University of Edinburgh, Edinburgh, United Kingdom.,Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, United Kingdom
| | - Jeffrey W Pollard
- MRC Centre for Reproductive Health, The University of Edinburgh, Edinburgh, United Kingdom. .,Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York
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8
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Vangala G, Imhoff FM, Squires CM, Cridge AG, Baird SK. Mesenchymal stem cell homing towards cancer cells is increased by enzyme activity of cathepsin D. Exp Cell Res 2019; 383:111494. [DOI: 10.1016/j.yexcr.2019.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/03/2019] [Accepted: 07/08/2019] [Indexed: 12/13/2022]
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9
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Chagas-Lima AC, Pereira MG, Fampa P, Lima MS, Kluck GEG, Atella GC. Bioactive lipids regulate Trypanosoma cruzi development. Parasitol Res 2019; 118:2609-2619. [DOI: 10.1007/s00436-019-06331-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/18/2019] [Indexed: 01/02/2023]
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10
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Stuelten CH, Lee RM, Losert W, Parent CA. Lysophosphatidic acid regulates the motility of MCF10CA1a breast cancer cell sheets via two opposing signaling pathways. Cell Signal 2018; 45:1-11. [PMID: 29337044 PMCID: PMC5845779 DOI: 10.1016/j.cellsig.2018.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/22/2017] [Accepted: 01/07/2018] [Indexed: 01/31/2023]
Abstract
Aberrant cell migration leads to the dispersal of malignant cells. The ubiquitous lipid mediator lysophosphatidic acid (LPA) modulates cell migration and is implicated in tumor progression. Yet, the signaling cascades that regulate LPA's effect on cell motility remain unclear. Using time-lapse imaging and quantitative analyses, we studied the role of signaling cascades that act downstream of LPA on the motility of MCF10CA1a breast cancer cells. We found that LPA alters cell motility via two major signaling pathways. The Rho/ROCK signaling cascade is the predominant pathway that increases E-Cadherin containing cell-cell adhesions and cortical arrangement of actomyosin to promote slow, directional, spatially coherent and temporally consistent movement. In contrast, Gαi/o- and Gαq/11-dependent signaling cascades lessen directionality and support the independent movement of cells. The net effect of LPA on breast cancer cell migration therefore results from the integrated signaling activity of the Rho/ROCK and Gαi/o- and Gαq/11-dependent pathways, thus allowing for a dynamic migratory response to changes in the cellular or microenvironmental context.
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Affiliation(s)
- Christina H Stuelten
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States.
| | - Rachel M Lee
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States; Department of Physics, Physical Sciences Complex, University of Maryland, College Park, MD, United States
| | - Wolfgang Losert
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States; Department of Physics, Physical Sciences Complex, University of Maryland, College Park, MD, United States
| | - Carole A Parent
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States; Department of Pharmacology, Michigan Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI..
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11
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Dratkiewicz E, Pietraszek-Gremplewicz K, Simiczyjew A, Mazur AJ, Nowak D. Gefitinib or lapatinib with foretinib synergistically induce a cytotoxic effect in melanoma cell lines. Oncotarget 2018; 9:18254-18268. [PMID: 29719603 PMCID: PMC5915070 DOI: 10.18632/oncotarget.24810] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 02/25/2018] [Indexed: 12/21/2022] Open
Abstract
Melanoma is an aggressive cancer type with a high mortality rate and an elevated resistance to conventional treatment. Recently, promising new tools for anti-melanoma targeted therapy have emerged including inhibitors directed against frequently overexpressed receptors of growth factors implicated in the progression of this cancer. The ineffectiveness of single-targeted therapy prompted us to study the efficacy of treatment with a combination of foretinib, a MET (hepatocyte growth factor receptor) inhibitor, and gefitinib or lapatinib, EGFR (epidermal growth factor receptor) inhibitors. We observed a synergistic cytotoxic effect for the combination of foretinib and lapatinib on the viability and proliferation of the examined melanoma cell lines. This combination of inhibitors significantly decreased Akt and Erk phosphorylation, while the drugs used independently were insufficient. Additionally, after treatment with pairs of inhibitors, cells became larger, with more pronounced stress fibers and abnormally shaped nuclei. We also noticed the appearance of polyploid cells and massive enrichment in the G2/M phase. Therefore, combination treatment was much more effective against melanoma cells than a single-targeted approach. Based on our results, we conclude that both EGFR and MET receptors might be effective targets in melanoma therapy. However, variation in their levels in patients should be taken into consideration.
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Affiliation(s)
- Ewelina Dratkiewicz
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | | | - Aleksandra Simiczyjew
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Antonina Joanna Mazur
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Dorota Nowak
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
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12
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Stuelten CH. Using the Dot Assay to Analyze Migration of Cell Sheets. J Vis Exp 2017. [PMID: 29286487 DOI: 10.3791/56451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Although complex organisms appear static, their tissues are under a continuous turnover. As cells age, die, and are replaced by new cells, cells move within tissues in a tightly orchestrated manner. During tumor development, this equilibrium is disturbed, and tumor cells leave the epithelium of origin to invade the local microenvironment, to travel to distant sites, and to ultimately form metastatic tumors at distant sites. The dot assay is a simple, two-dimensional unconstrained migration assay, to assess the net movement of cell sheets into a cell-free area, and to analyze parameters of cell migration using time-lapse imaging. Here, the dot assay is demonstrated using a human invasive, lung colony forming breast cancer cell line, MCF10CA1a, to analyze the cells' migratory response to epidermal growth factor (EGF), which is known to increase malignant potential of breast cancer cells and to alter the migratory phenotype of cells.
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Affiliation(s)
- Christina H Stuelten
- Laboratory of Cellular and Molecular Biology, National Cancer Institute, National Institutes of Health;
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13
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Sun M, Spill F, Zaman MH. A Computational Model of YAP/TAZ Mechanosensing. Biophys J 2017; 110:2540-2550. [PMID: 27276271 DOI: 10.1016/j.bpj.2016.04.040] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/24/2016] [Accepted: 04/12/2016] [Indexed: 12/15/2022] Open
Abstract
In cell proliferation, stem cell differentiation, chemoresistance, and tissue organization, the ubiquitous role of YAP/TAZ continues to impact our fundamental understanding in numerous physiological and disease systems. YAP/TAZ is an important signaling nexus integrating diverse mechanical and biochemical signals, such as ECM stiffness, adhesion ligand density, or cell-cell contacts, and thus strongly influences cell fate. Recent studies show that YAP/TAZ mechanical sensing is dependent on RhoA-regulated stress fibers. However, current understanding of YAP/TAZ remains limited due to the unknown interaction between the canonical Hippo pathway and cell tension. Furthermore, the multiscale relationship connecting adhesion signaling to YAP/TAZ activity through cytoskeleton dynamics remains poorly understood. To identify the roles of key signaling molecules in mechanical signal sensing and transduction, we present a, to our knowledge, novel computational model of the YAP/TAZ signaling pathway. This model converts extracellular-matrix mechanical properties to biochemical signals via adhesion, and integrates intracellular signaling cascades associated with cytoskeleton dynamics. We perform perturbations of molecular levels and sensitivity analyses to predict how various signaling molecules affect YAP/TAZ activity. Adhesion molecules, such as FAK, are predicted to rescue YAP/TAZ activity in soft environments via the RhoA pathway. We also found that changes of molecule concentrations result in different patterns of YAP/TAZ stiffness response. We also investigate the sensitivity of YAP/TAZ activity to ECM stiffness, and compare with that of SRF/MAL, which is another important regulator of differentiation. In addition, the model shows that the unresolved synergistic effect of YAP/TAZ activity between the mechanosensing and the Hippo pathways can be explained by the interaction of LIM-kinase and LATS. Overall, our model provides a, to our knowledge, novel platform for studying YAP/TAZ activity in the context of integrating different signaling pathways. This platform can be used to gain, to our knowledge, new fundamental insights into roles of key molecular and mechanical regulators on development, tissue engineering, or tumor progression.
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Affiliation(s)
- Meng Sun
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts
| | - Fabian Spill
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts.
| | - Muhammad H Zaman
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts; Howard Hughes Medical Institute, Boston University, Boston, Massachusetts.
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14
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Resveratrol suppresses breast cancer cell invasion by inactivating a RhoA/YAP signaling axis. Exp Mol Med 2017; 49:e296. [PMID: 28232662 PMCID: PMC5336560 DOI: 10.1038/emm.2016.151] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 09/27/2016] [Accepted: 10/04/2016] [Indexed: 12/26/2022] Open
Abstract
Hippo/YAP signaling is implicated in tumorigenesis and progression of various cancers. By inhibiting a plethora signaling cascades, resveratrol has strong anti-tumorigenic and anti-metastatic activity. In the present study, we demonstrate that resveratrol decreases the expression of YAP target genes. In addition, our data showed that resveratrol attenuates breast cancer cell invasion through the activation of Lats1 and consequent inactivation of YAP. Strikingly, we also demonstrate that resveratrol inactivates RhoA, leading to the activation of Lats1 and induction of YAP phosphorylation. Further, resveratrol in combination with other agents that inactivate RhoA or YAP showed more marked suppression of breast cancer cell invasion compared with single treatment. Collectively, these findings indicate the beneficial effects of resveratrol on breast cancer patients by suppressing the RhoA/Lats1/YAP signaling axis and subsequently inhibiting breast cancer cell invasion.
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15
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Makowiecka A, Simiczyjew A, Nowak D, Mazur AJ. Varying effects of EGF, HGF and TGFβ on formation of invadopodia and invasiveness of melanoma cell lines of different origin. Eur J Histochem 2016; 60:2728. [PMID: 28076931 PMCID: PMC5178804 DOI: 10.4081/ejh.2016.2728] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/14/2016] [Accepted: 11/18/2016] [Indexed: 12/12/2022] Open
Abstract
The understanding of melanoma malignancy mechanisms is essential for patient survival, because melanoma is responsible for ca. 75% of deaths related to skin cancers. Enhanced formation of invadopodia and extracellular matrix (ECM) degradation are two important drivers of cell invasion, and actin dynamics facilitate protrusive activity by providing a driving force to push through the ECM. We focused on the influence of epidermal growth factor (EGF), hepatocyte growth factor (HGF) and transforming growth factor β (TGFβ) on melanoma cell invasiveness, since they are observed in the melanoma microenvironment. All three factors stimulated invasion of A375 and WM1341D cells derived from primary tumor sites. In contrast, only EGF and HGF stimulated invasion of WM9 and Hs294T cells isolated from lymph node metastasis. Enhanced formation of invadopodia and ECM degradation underlie the increased amount of invasive cells after stimulation with the tested agents. Generally, a rise in invasive potential was accompanied by a decrease in actin polymerization state (F:G ratio). The F:G ratio remained unchanged or was even increased in cell lines from a metastasis treated with TGFβ. Our findings indicate that the effects of stimulation with EGF, HGF and TGFβ on melanoma cell invasiveness could depend on melanoma cell progression stage.
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Affiliation(s)
- A Makowiecka
- University of Wrocław, Department of Cell Pathology.
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16
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Odenthal J, Takes R, Friedl P. Plasticity of tumor cell invasion: governance by growth factors and cytokines. Carcinogenesis 2016; 37:1117-1128. [PMID: 27664164 DOI: 10.1093/carcin/bgw098] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/15/2016] [Accepted: 09/22/2016] [Indexed: 01/01/2023] Open
Abstract
Tumor cell migration, the basis for metastatic dissemination, is an adaptive process which depends upon coordinated cell interaction with the environment, influencing cell-matrix and cell-cell adhesion, cytoskeletal dynamics and extracellular matrix remodeling. Growth factors and cytokines, released within the reactive tumor microenvironment and their intracellular effector signals strongly impact mechanocoupling functions in tumor cells and thereby control the mode and extent of tumor invasion, including collective and single-cell migration and their interconversions. Besides their role in controlling tumor cell growth and survival, cytokines and growth factors thus provide complex orchestration of the metastatic cascade and tumor cell adaptation to environmental challenge. We here review the mechanisms by which growth factors and cytokines control the reciprocal interactions between tumor cells and their microenvironment, and the consequences for the efficacy and plasticity of invasion programs and metastasis.
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Affiliation(s)
- Julia Odenthal
- Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands.,Department of Cell Biology, Radboud Institute for Molecular Life Sciences, 6525 GA Nijmegen, The Netherlands
| | - Robert Takes
- Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands
| | - Peter Friedl
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, 6525 GA Nijmegen, The Netherlands, .,Department of Genitourinary Medical Oncology - Research, Houston, TX 77030, USA and.,Cancer Genomics Center, 3584 CG Utrecht, The Netherlands
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17
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Sundararajan V, Gengenbacher N, Stemmler MP, Kleemann JA, Brabletz T, Brabletz S. The ZEB1/miR-200c feedback loop regulates invasion via actin interacting proteins MYLK and TKS5. Oncotarget 2016; 6:27083-96. [PMID: 26334100 PMCID: PMC4694975 DOI: 10.18632/oncotarget.4807] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 08/07/2015] [Indexed: 02/06/2023] Open
Abstract
Epithelial to mesenchymal transition (EMT) is a developmental process which is aberrantly activated during cancer invasion and metastasis. Elevated expression of EMT-inducers like ZEB1 enables tumor cells to detach from the primary tumor and invade into the surrounding tissue. The main antagonist of ZEB1 in controlling EMT is the microRNA-200 family that is reciprocally linked to ZEB1 in a double negative feedback loop. Here, we further elucidate how the ZEB1/miR-200 feedback loop controls invasion of tumor cells. The process of EMT is attended by major changes in the actin cytoskeleton. Via in silico screening of genes encoding for actin interacting proteins, we identified two novel targets of miR-200c - TKS5 and MYLK (MLCK). Co-expression of both genes with ZEB1 was observed in several cancer cell lines as well as in breast cancer patients and correlated with low miR-200c levels. Depletion of TKS5 or MYLK in breast cancer cells reduced their invasive potential and their ability to form invadopodia. Whereas TKS5 is known to be a major component, we could identify MYLK as a novel player in invadopodia formation. In summary, TKS5 and MYLK represent two mediators of invasive behavior of cancer cells that are regulated by the ZEB1/miR-200 feedback loop.
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Affiliation(s)
- Vignesh Sundararajan
- Department of Visceral Surgery, University Medical Center Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Nicolas Gengenbacher
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Marc P Stemmler
- Department of Experimental Medicine I, Nikolaus-Fiebiger-Center for Molecular Medicine, University Erlangen-Nürnberg, Erlangen, Germany
| | - Julia A Kleemann
- Department of Experimental Medicine I, Nikolaus-Fiebiger-Center for Molecular Medicine, University Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Brabletz
- Department of Experimental Medicine I, Nikolaus-Fiebiger-Center for Molecular Medicine, University Erlangen-Nürnberg, Erlangen, Germany
| | - Simone Brabletz
- Department of Experimental Medicine I, Nikolaus-Fiebiger-Center for Molecular Medicine, University Erlangen-Nürnberg, Erlangen, Germany
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18
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Newell-Litwa KA, Horwitz R, Lamers ML. Non-muscle myosin II in disease: mechanisms and therapeutic opportunities. Dis Model Mech 2015; 8:1495-515. [PMID: 26542704 PMCID: PMC4728321 DOI: 10.1242/dmm.022103] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The actin motor protein non-muscle myosin II (NMII) acts as a master regulator of cell morphology, with a role in several essential cellular processes, including cell migration and post-synaptic dendritic spine plasticity in neurons. NMII also generates forces that alter biochemical signaling, by driving changes in interactions between actin-associated proteins that can ultimately regulate gene transcription. In addition to its roles in normal cellular physiology, NMII has recently emerged as a critical regulator of diverse, genetically complex diseases, including neuronal disorders, cancers and vascular disease. In the context of these disorders, NMII regulatory pathways can be directly mutated or indirectly altered by disease-causing mutations. NMII regulatory pathway genes are also increasingly found in disease-associated copy-number variants, particularly in neuronal disorders such as autism and schizophrenia. Furthermore, manipulation of NMII-mediated contractility regulates stem cell pluripotency and differentiation, thus highlighting the key role of NMII-based pharmaceuticals in the clinical success of stem cell therapies. In this Review, we discuss the emerging role of NMII activity and its regulation by kinases and microRNAs in the pathogenesis and prognosis of a diverse range of diseases, including neuronal disorders, cancer and vascular disease. We also address promising clinical applications and limitations of NMII-based inhibitors in the treatment of these diseases and the development of stem-cell-based therapies.
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Affiliation(s)
- Karen A Newell-Litwa
- Department of Cell Biology, University of Virginia, Charlottesville, VA 22908, USA
| | - Rick Horwitz
- Department of Cell Biology, University of Virginia, Charlottesville, VA 22908, USA
| | - Marcelo L Lamers
- Department of Morphological Sciences, Institute of Basic Health Science, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90610-010, Brazil
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19
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Fan TT, Cheng Y, Wang YF, Gui SY, Chen FH, Zhou Q, Wang Y. A novel all-trans retinoid acid derivative N-(3-trifluoromethyl- phenyl)- retinamide inhibits lung adenocarcinoma A549 cell migration through down-regulating expression of myosin light chain kinase. Asian Pac J Cancer Prev 2015; 15:7687-92. [PMID: 25292047 DOI: 10.7314/apjcp.2014.15.18.7687] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AIM To observe the effects of a novel all-trans retinoid acid (ATRA) derivative, N-(3-trifluoromethyl-phenyl)- retinamide (ATPR), on lung adenocarcinoma A549 cells and to explore the potential mechanism of ATPR inhibiting of A549 cell migration. MATERIALS AND METHODS The cytotoxicity of ATRA and ATPR on A549 cells was assessed using MTT assay. Wound healing assays were used to analyze the influences of ATRA, ATPR, ML-7 (a highly selective inhibitor of myosin light chain kinase (MLCK)), PMA (an activator of MAPKs) and PD98059 (a selective inhibitor of ERK1/2) on the migration of A549 cells. Expression of MLCK and phosphorylation of myosin light chain (MLC) were assessed by Western blotting. RESULTS ATRA and ATPR inhibited the proliferation of A549 cells in a dose- and time-dependent manner, and the effect of ATPR was much more remarkable compared with ATRA. Relative migration rate and migration distance of A549 cells both decreased significantly after treatment with ATPR or ML-7. The effect on cell migration of PD98059 combining ATPR treatment was more notable than that of ATPR alone. Moreover, compared with control groups, the expression levels of MLCK and phosphorylated MLC in A549 cells were both clearly reduced in ATRA and ATPR groups. CONCLUSIONS ATPR could suppress the migration and invasion of A549 cells, and the mechanism might be concerned with down- regulating the expression of MLCK in the ERK-MAPK signaling pathway, pointing to therapeutic prospects in lung cancer.
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Affiliation(s)
- Ting-Ting Fan
- Department of Respiratory Medicine, the First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China E-mail : ,
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20
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Keinan O, Kedan A, Gavert N, Selitrennik M, Kim S, Karn T, Becker S, Lev S. The lipid-transfer protein Nir2 enhances epithelial-mesenchymal transition and facilitates breast cancer metastasis. J Cell Sci 2014; 127:4740-9. [PMID: 25179602 DOI: 10.1242/jcs.155721] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The involvement of epithelial-mesenchymal transition (EMT) in breast cancer metastasis has been demonstrated in many studies. However, the intracellular proteins and signaling pathways that regulate EMT have not been fully identified. Here, we show that the lipid-transfer protein Nir2 (also known as PITPNM1) enhances EMT in mammary epithelial and breast cancer cells. Nir2 overexpression decreases the expression of epithelial markers and concomitantly increases the expression of mesenchymal markers, whereas silencing of Nir2 expression by small hairpin RNA (shRNA) has opposite effects. Additionally, Nir2 expression is increased during EMT and affects cell morphology, whereas Nir2 depletion attenuates growth factor-induced cell migration. These effects of Nir2 on EMT-associated processes are mainly mediated through the PI3K/AKT and the ERK1/2 pathways. Nir2 depletion also inhibits cell invasion in vitro and lung metastasis in animal models. Immunohistochemical analysis of breast cancer tissue samples reveals a correlation between high Nir2 expression and tumor grade, and Kaplan-Meier survival curves correlate Nir2 expression with poor disease outcome. These results suggest that Nir2 not only enhances EMT in vitro and breast cancer metastasis in animal models, but also contributes to breast cancer progression in human patients.
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Affiliation(s)
- Omer Keinan
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Amir Kedan
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Nancy Gavert
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Michael Selitrennik
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
| | - SoHui Kim
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Thomas Karn
- Department of Obstetrics and Gynecology, Goethe University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany
| | - Sven Becker
- Department of Obstetrics and Gynecology, Goethe University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany
| | - Sima Lev
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot 76100, Israel
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21
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Patel M, Kawano T, Suzuki N, Hamakubo T, Karginov AV, Kozasa T. Gα13/PDZ-RhoGEF/RhoA signaling is essential for gastrin-releasing peptide receptor-mediated colon cancer cell migration. Mol Pharmacol 2014; 86:252-62. [PMID: 24958816 DOI: 10.1124/mol.114.093914] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Gastrin-releasing peptide receptor (GRPR) is ectopically expressed in over 60% of colon cancers. GRPR expression has been correlated with increased colon cancer cell migration. However, the signaling pathway by which GRPR activation leads to increased cancer cell migration is not well understood. We set out to molecularly dissect the GRPR signaling pathways that control colon cancer cell migration through regulation of small GTPase RhoA. Our results show that GRP stimulation activates RhoA predominantly through G13 heterotrimeric G-protein signaling. We also demonstrate that postsynaptic density 95/disk-large/ZO-1 (PDZ)-RhoGEF (PRG), a member of regulator of G-protein signaling (RGS)-homology domain (RH) containing guanine nucleotide exchange factors (RH-RhoGEFs), is the predominant activator of RhoA downstream of GRPR. We found that PRG is required for GRP-stimulated colon cancer cell migration, through activation of RhoA-Rho-associated kinase (ROCK) signaling axis. In addition, PRG-RhoA-ROCK pathway also contributes to cyclo-oxygenase isoform 2 (Cox-2) expression. Increased Cox-2 expression is correlated with increased production of prostaglandin-E2 (PGE2), and Cox-2-PGE2 signaling contributes to total GRPR-mediated cancer cell migration. Our analysis reveals that PRG is overexpressed in colon cancer cell lines. Overall, our results have uncovered a key mechanism for GRPR-regulated colon cancer cell migration through the Gα13-PRG-RhoA-ROCK pathway.
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Affiliation(s)
- Maulik Patel
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, Illinois (M.P., A.V.K., T.Ko.); Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, Virginia (T. Ka.); and Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan (N.S., T.H., T.Ko.)
| | - Takeharu Kawano
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, Illinois (M.P., A.V.K., T.Ko.); Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, Virginia (T. Ka.); and Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan (N.S., T.H., T.Ko.)
| | - Nobuchika Suzuki
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, Illinois (M.P., A.V.K., T.Ko.); Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, Virginia (T. Ka.); and Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan (N.S., T.H., T.Ko.)
| | - Takao Hamakubo
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, Illinois (M.P., A.V.K., T.Ko.); Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, Virginia (T. Ka.); and Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan (N.S., T.H., T.Ko.)
| | - Andrei V Karginov
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, Illinois (M.P., A.V.K., T.Ko.); Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, Virginia (T. Ka.); and Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan (N.S., T.H., T.Ko.)
| | - Tohru Kozasa
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, Illinois (M.P., A.V.K., T.Ko.); Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, Virginia (T. Ka.); and Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan (N.S., T.H., T.Ko.).
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22
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Penrod NM, Greene CS, Moore JH. Predicting targeted drug combinations based on Pareto optimal patterns of coexpression network connectivity. Genome Med 2014; 6:33. [PMID: 24944582 PMCID: PMC4062052 DOI: 10.1186/gm550] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 04/22/2014] [Indexed: 01/05/2023] Open
Abstract
Background Molecularly targeted drugs promise a safer and more effective treatment modality than conventional chemotherapy for cancer patients. However, tumors are dynamic systems that readily adapt to these agents activating alternative survival pathways as they evolve resistant phenotypes. Combination therapies can overcome resistance but finding the optimal combinations efficiently presents a formidable challenge. Here we introduce a new paradigm for the design of combination therapy treatment strategies that exploits the tumor adaptive process to identify context-dependent essential genes as druggable targets. Methods We have developed a framework to mine high-throughput transcriptomic data, based on differential coexpression and Pareto optimization, to investigate drug-induced tumor adaptation. We use this approach to identify tumor-essential genes as druggable candidates. We apply our method to a set of ER+ breast tumor samples, collected before (n = 58) and after (n = 60) neoadjuvant treatment with the aromatase inhibitor letrozole, to prioritize genes as targets for combination therapy with letrozole treatment. We validate letrozole-induced tumor adaptation through coexpression and pathway analyses in an independent data set (n = 18). Results We find pervasive differential coexpression between the untreated and letrozole-treated tumor samples as evidence of letrozole-induced tumor adaptation. Based on patterns of coexpression, we identify ten genes as potential candidates for combination therapy with letrozole including EPCAM, a letrozole-induced essential gene and a target to which drugs have already been developed as cancer therapeutics. Through replication, we validate six letrozole-induced coexpression relationships and confirm the epithelial-to-mesenchymal transition as a process that is upregulated in the residual tumor samples following letrozole treatment. Conclusions To derive the greatest benefit from molecularly targeted drugs it is critical to design combination treatment strategies rationally. Incorporating knowledge of the tumor adaptation process into the design provides an opportunity to match targeted drugs to the evolving tumor phenotype and surmount resistance.
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Affiliation(s)
- Nadia M Penrod
- Department of Pharmacology and Toxicology, Geisel School of Medicine at Dartmouth College, HB7937 One Medical Center Dr, Lebanon NH 03766, USA
| | - Casey S Greene
- Department of Genetics, Geisel School of Medicine at Dartmouth College, HB7937 One Medical Center Dr, Lebanon NH 03766, USA ; Institute for Quantitative Biomedical Sciences, Geisel School of Medicine at Dartmouth College, HB7937 One Medical Center Dr, Lebanon NH 03766, USA
| | - Jason H Moore
- Department of Genetics, Geisel School of Medicine at Dartmouth College, HB7937 One Medical Center Dr, Lebanon NH 03766, USA ; Institute for Quantitative Biomedical Sciences, Geisel School of Medicine at Dartmouth College, HB7937 One Medical Center Dr, Lebanon NH 03766, USA
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23
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Zhou T, Wang T, Garcia JGN. Genes influenced by the non-muscle isoform of Myosin light chain kinase impact human cancer prognosis. PLoS One 2014; 9:e94325. [PMID: 24714365 PMCID: PMC3979809 DOI: 10.1371/journal.pone.0094325] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 03/14/2014] [Indexed: 12/20/2022] Open
Abstract
The multifunctional non-muscle isoform of myosin light chain kinase (nmMLCK) is critical to the rapid dynamic coordination of the cytoskeleton involved in cancer cell proliferation and migration. We identified 45 nmMLCK-influenced genes by bioinformatic filtering of genome–wide expression in wild type and nmMLCK knockout (KO) mice exposed to preclinical models of murine acute inflammatory lung injury, pathologies that are well established to include nmMLCK as an essential participant. To determine whether these nmMLCK-influenced genes were relevant to human cancers, the 45 mouse genes were matched to 38 distinct human orthologs (M38 signature) (GeneCards definition) and underwent Kaplan-Meier survival analysis in training and validation cohorts. These studies revealed that in training cohorts, the M38 signature successfully identified cancer patients with poor overall survival in breast cancer (P<0.001), colon cancer (P<0.001), glioma (P<0.001), and lung cancer (P<0.001). In validation cohorts, the M38 signature demonstrated significantly reduced overall survival for high-score patients of breast cancer (P = 0.002), colon cancer (P = 0.035), glioma (P = 0.023), and lung cancer (P = 0.023). The association between M38 risk score and overall survival was confirmed by univariate Cox proportional hazard analysis of overall survival in the both training and validation cohorts. This study, providing a novel prognostic cancer gene signature derived from a murine model of nmMLCK-associated lung inflammation, strongly supports nmMLCK-involved pathways in tumor growth and progression in human cancers and nmMLCK as an attractive candidate molecular target in both inflammatory and neoplastic processes.
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Affiliation(s)
- Tong Zhou
- Arizona Respiratory Center and Department of Medicine, The University of Arizona, Tucson, Arizona, United States of America
| | - Ting Wang
- Arizona Respiratory Center and Department of Medicine, The University of Arizona, Tucson, Arizona, United States of America
| | - Joe G. N. Garcia
- Arizona Respiratory Center and Department of Medicine, The University of Arizona, Tucson, Arizona, United States of America
- * E-mail:
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