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Howell MC, Green R, Cianne J, Dayhoff GW, Uversky VN, Mohapatra S, Mohapatra S. EGFR TKI resistance in lung cancer cells using RNA sequencing and analytical bioinformatics tools. J Biomol Struct Dyn 2023; 41:9808-9827. [PMID: 36524419 PMCID: PMC10272293 DOI: 10.1080/07391102.2022.2153269] [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: 08/05/2022] [Accepted: 11/07/2022] [Indexed: 12/23/2022]
Abstract
Epidermal Growth Factor Receptor (EGFR) signaling and EGFR mutations play key roles in cancer pathogenesis, particularly in the development of drug resistance. For the ∼20% of all non-small cell lung cancer (NSCLC) patients that harbor an activating mutation, EGFR tyrosine kinase inhibitors (TKIs) provide initial clinical responses. However, long-term efficacy is not possible due to acquired drug resistance. Despite a gradually increasing knowledge of the mechanisms underpinning the development of resistance in tumors, there has been very little success in overcoming it and it is probable that many additional mechanisms are still unknown. Herein, publicly available RNASeq (RNA sequencing) datasets comparing lung cancer cell lines treated with EGFR TKIs until resistance developed with their corresponding parental cells and protein array data from our own EGFR TKI treated xenograft tumors, were analyzed for differential gene expression, with the intent to investigate the potential mechanisms of drug resistance to EGFR TKIs. Pathway analysis, as well as structural disorder analysis of proteins in these pathways, revealed several key proteins, including DUSP1, DUSP6, GAB2, and FOS, that could be targeted using novel combination therapies to overcome EGFR TKI resistance in lung cancer.
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Affiliation(s)
- Mark C Howell
- Department of Molecular Medicine, University of South Florida, Tampa, FL, USA
- Center for Research & Education in Nanobioengineering, Division of Translational Medicine, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Ryan Green
- Department of Molecular Medicine, University of South Florida, Tampa, FL, USA
- Center for Research & Education in Nanobioengineering, Division of Translational Medicine, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Junior Cianne
- Department of Molecular Medicine, University of South Florida, Tampa, FL, USA
| | - Guy W Dayhoff
- Department of Chemistry, College of Art and Sciences, University of South Florida, Tampa, FL, USA
| | - Vladimir N Uversky
- Department of Molecular Medicine, University of South Florida, Tampa, FL, USA
| | - Shyam Mohapatra
- Center for Research & Education in Nanobioengineering, Division of Translational Medicine, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
- James A. Haley Veterans Hospital, Tampa, FL, USA
| | - Subhra Mohapatra
- Department of Molecular Medicine, University of South Florida, Tampa, FL, USA
- James A. Haley Veterans Hospital, Tampa, FL, USA
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Martin-Vega A, Cobb MH. Navigating the ERK1/2 MAPK Cascade. Biomolecules 2023; 13:1555. [PMID: 37892237 PMCID: PMC10605237 DOI: 10.3390/biom13101555] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
The RAS-ERK pathway is a fundamental signaling cascade crucial for many biological processes including proliferation, cell cycle control, growth, and survival; common across all cell types. Notably, ERK1/2 are implicated in specific processes in a context-dependent manner as in stem cells and pancreatic β-cells. Alterations in the different components of this cascade result in dysregulation of the effector kinases ERK1/2 which communicate with hundreds of substrates. Aberrant activation of the pathway contributes to a range of disorders, including cancer. This review provides an overview of the structure, activation, regulation, and mutational frequency of the different tiers of the cascade; with a particular focus on ERK1/2. We highlight the importance of scaffold proteins that contribute to kinase localization and coordinate interaction dynamics of the kinases with substrates, activators, and inhibitors. Additionally, we explore innovative therapeutic approaches emphasizing promising avenues in this field.
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Affiliation(s)
- Ana Martin-Vega
- Department of Pharmacology, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX 75390, USA;
| | - Melanie H. Cobb
- Department of Pharmacology, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX 75390, USA;
- Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX 75390, USA
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3
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Luo J, Makhnin A, Tobi Y, Ahn L, Hayes SA, Iqbal A, Ng K, Arcila ME, Riely GJ, Kris MG, Yu HA. Erlotinib and Trametinib in Patients With EGFR-Mutant Lung Adenocarcinoma and Acquired Resistance to a Prior Tyrosine Kinase Inhibitor. JCO Precis Oncol 2021; 5:PO.20.00315. [PMID: 34250388 DOI: 10.1200/po.20.00315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/12/2020] [Accepted: 11/03/2020] [Indexed: 11/20/2022] Open
Abstract
Inhibition of the MEK/ERK pathway is critical for Bcl-2-like protein 11 (BIM)-mediated epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI)-induced apoptosis, and dysregulation of this pathway may be a mechanism of acquired resistance. Therefore, MEK inhibition with trametinib and an EGFR TKI may resensitize tumors with acquired resistance. Limited targeted therapies are available after progression on EGFR TKIs, and it is in this setting that we completed a phase I/II study of erlotinib and trametinib. METHODS Patients with metastatic EGFR-mutant lung adenocarcinoma and acquired resistance to an EGFR TKI received combination erlotinib 75 mg and trametinib 1.5 mg daily until progression or unacceptable side effects. The primary objective was objective response rate determined using RECIST version 1.1. RESULTS Twenty-three patients were accrued; patients had received a median of two lines of prior TKI therapy (61% prior osimertinib), and 48% had acquired EGFR T790M. We confirmed one partial response (1/23, 4%, 95% CI, 0 to 22). The median progression-free survival was 1.8 months, and the median overall survival was 21 months. Diarrhea (87%), acneiform rash (87%), and fatigue (52%) were the most common treatment-related adverse events. Two patients who had tumor shrinkage both harbored a BRAF fusion. CONCLUSION Addition of trametinib to erlotinib in the acquired resistance setting in an unselected population is not efficacious. Future studies should focus on targeted therapies in molecularly selected populations. Acquired BRAF fusions in patients with EGFR-sensitizing mutations may be a molecular subset where EGFR and MEK combination therapy could be studied further.
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Affiliation(s)
- Jia Luo
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Alex Makhnin
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Yosef Tobi
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.,Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Linda Ahn
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sara A Hayes
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Afsheen Iqbal
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Kenneth Ng
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Maria E Arcila
- Molecular Diagnostics Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Gregory J Riely
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.,Department of Medicine, Weill Cornell Medical Center, New York, NY
| | - Mark G Kris
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.,Department of Medicine, Weill Cornell Medical Center, New York, NY
| | - Helena A Yu
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.,Department of Medicine, Weill Cornell Medical Center, New York, NY
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Wang FYF, Wang-Gou SY, Cao H, Jiang N, Yang Q, Huang Q, Huang CH, Li XJ. Proteomics identifies EGF-like domain multiple 7 as a potential therapeutic target for epidermal growth factor receptor-positive glioma. Cancer Commun (Lond) 2020; 40:518-530. [PMID: 32888253 PMCID: PMC7571400 DOI: 10.1002/cac2.12092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/04/2020] [Accepted: 08/28/2020] [Indexed: 12/16/2022] Open
Abstract
Background Glioma, the most frequent primary tumor of the central nervous system, has poor prognosis. The epidermal growth factor receptor (EGFR) pathway and angiogenesis play important roles in glioma growth, invasion, and recurrence. The present study aimed to use proteomic methods to probe into the role of the EGF‐EGFR‐angiogenesis axis in the tumorigenesis of glioma and access the therapeutic efficacy of selumetinib on glioma. Methods Proteomic profiling was used to characterize 200 paired EGFR‐positive and EGFR‐negative glioma tissues of all pathological types. The quantitative mass spectrometry data were used for systematic analysis of the proteomic profiles of 10 EGFR‐positive and 10 EGFR‐negative glioma cases. Consensus‐clustering analysis was used to screen target proteins. Immunofluorescence analysis, cell growth assay, and intracranial xenograft experiments were used to verify and test the therapeutic effect of selumetinib on glioma. Results Advanced proteomic screening demonstrated that the expression of EGF‐like domain multiple 7 (EGFL7) was higher in EGFR‐positive tumor tissues than in EGFR‐negative tumor tissues. In addition, EGFL7 could act as an activator in vitro and in vivo to promote glioma cell proliferation. EGFL7 was associated strongly with EGFR and prognosis. EGFL7 knockdown effectively suppressed glioma cell proliferation. Selumetinib treatment showed tumor reduction effect in EGFR‐positive glioblastoma xenograft mouse model. Conclusions EGFL7 is a potential diagnostic biomarker and therapeutic target of glioma. Selumetinib could target the EGFR pathway and possibly improve the prognosis of EGFR‐positive glioma.
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Affiliation(s)
- Fei-Yi-Fan Wang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Si-Yi Wang-Gou
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Hang Cao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Nian Jiang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Qi Yang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Qi Huang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Chun-Hai Huang
- Department of Neurosurgery, the First Affiliated Hospital of Jishou University, Jishou, Hunan, 416000, P. R. China
| | - Xue-Jun Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China.,Hunan International Scientific and Technological Cooperation Base of Brain Tumor Research, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
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Targeting Discoidin Domain Receptor 1 (DDR1) Signaling and Its Crosstalk with β 1-integrin Emerges as a Key Factor for Breast Cancer Chemosensitization upon Collagen Type 1 Binding. Int J Mol Sci 2020; 21:ijms21144956. [PMID: 32668815 PMCID: PMC7404217 DOI: 10.3390/ijms21144956] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/02/2020] [Accepted: 07/09/2020] [Indexed: 12/23/2022] Open
Abstract
Collagen type 1 (COL1) is a ubiquitously existing extracellular matrix protein whose high density in breast tissue favors metastasis and chemoresistance. COL1-binding of MDA-MB-231 and MCF-7 breast cancer cells is mainly dependent on β1-integrins (ITGB1). Here, we elucidate the signaling of chemoresistance in both cell lines and their ITGB1-knockdown mutants and elucidated MAPK pathway to be strongly upregulated upon COL1 binding. Notably, Discoidin Domain Receptor 1 (DDR1) was identified as another important COL1-sensor, which is permanently active but takes over the role of COL1-receptor maintaining MAPK activation in ITGB1-knockdown cells. Consequently, inhibition of DDR1 and ERK1/2 act synergistically, and sensitize the cells for cytostatic treatments using mitoxantrone, or doxorubicin, which was associated with an impaired ABCG2 drug efflux transporter activity. These data favor DDR1 as a promising target for cancer cell sensitization, most likely in combination with MAPK pathway inhibitors to circumvent COL1 induced transporter resistance axis. Since ITGB1-knockdown also induces upregulation of pEGFR in MDA-MB-231 cells, inhibitory approaches including EGFR inhibitors, such as gefitinib appear promising for pharmacological interference. These findings provide evidence for the highly dynamic adaptation of breast cancer cells in maintaining matrix binding to circumvent cytotoxicity and highlight DDR1 signaling as a target for sensitization approaches.
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Li J, Kwok HF. Current Strategies for Treating NSCLC: From Biological Mechanisms to Clinical Treatment. Cancers (Basel) 2020; 12:E1587. [PMID: 32549388 PMCID: PMC7352656 DOI: 10.3390/cancers12061587] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/17/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
The identification of specific epidermal growth factor receptor (EGFR)-activating mutations heralded a breakthrough in non-small-cell lung cancer (NSCLC) treatments, with the subsequent development of EGFR-tyrosine kinase inhibitor (TKIs) becoming the first-line therapy for patients harboring EGFR mutations. However, acquired resistance to EGFR-TKIs inevitably occurs in patients following initial TKI treatment, leading to disease progression. Various mechanisms are behind the acquired resistance, and mainly include (1) target gene modification, (2) alternative parallel pathway activation, (3) downstream pathway activation, and (4) histological/phenotypic transformation. Approaches to combat the acquired resistance have been investigated according to these mechanisms. Newer generations of TKIs have been developed to target the secondary/tertiary EGFR mutations in patients with acquired resistance. In addition, combination therapies have been developed as another promising strategy to overcome acquired resistance through the activation of other signaling pathways. Thus, in this review, we summarize the mechanisms for acquired resistance and focus on the potential corresponding therapeutic strategies for acquired resistance.
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Affiliation(s)
- Junnan Li
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau;
| | - Hang Fai Kwok
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau;
- Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau
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7
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Howell MC, Green R, Khalil R, Foran E, Quarni W, Nair R, Stevens S, Grinchuk A, Hanna A, Mohapatra S, Mohapatra S. Lung cancer cells survive epidermal growth factor receptor tyrosine kinase inhibitor exposure through upregulation of cholesterol synthesis. FASEB Bioadv 2020; 2:90-105. [PMID: 32123859 PMCID: PMC7003654 DOI: 10.1096/fba.2019-00081] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/04/2019] [Accepted: 11/12/2019] [Indexed: 01/09/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) provide clinical benefits over chemotherapy for lung cancer patients with EGFR activating mutations. Despite initial clinical responses, long-term efficacy is not possible because of acquired resistance to these therapies. We have developed EGFR TKI drug-tolerant (DT) human lung cancer cell lines as a model for de novo resistance. Mass spectroscopic analysis revealed that the cytochrome P450 protein, CYP51A1 (Lanosterol 14α-demethylase), which is directly involved with cholesterol synthesis, was significantly upregulated in the DT cells. Total cellular cholesterol, and more specifically, mitochondrial cholesterol, were found to be upregulated in DT cells. We then used the CYP51A1 inhibitor, ketoconazole, to downregulate cholesterol synthesis. In both parental and DT cells, ketoconazole and EGFR TKIs acted synergistically to induce apoptosis and overcome the development of EGFR tolerance. Lastly, this combination therapy was shown to shrink the growth of tumors in an in vivo mouse model of EGFR TKI resistance. Thus, our study demonstrates for the first time that ketoconazole treatment inhibits upregulation of mitochondrial cholesterol and thereby overcomes EGFR-TKI resistance in lung cancer cells.
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Affiliation(s)
- Mark C. Howell
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
| | - Ryan Green
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
| | - Roukiah Khalil
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | - Elspeth Foran
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | - Waise Quarni
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | | | - Stanley Stevens
- Cell Biology, Microbiology, and Molecular BiologyCollege of Arts and SciencesUniversity of South FloridaTampaFLUSA
| | | | - Andrew Hanna
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | - Shyam Mohapatra
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
- Division of Translational MedicineInternal MedicineMorsani College of MedicineUniversity of South FloridaTampaFLUSA
- James A Haley Veterans HospitalTampaFLUSA
| | - Subhra Mohapatra
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
- James A Haley Veterans HospitalTampaFLUSA
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Liao BC, Griesing S, Yang JCH. Second-line treatment of EGFR T790M-negative non-small cell lung cancer patients. Ther Adv Med Oncol 2019; 11:1758835919890286. [PMID: 31803256 PMCID: PMC6878608 DOI: 10.1177/1758835919890286] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/29/2019] [Indexed: 12/17/2022] Open
Abstract
Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) are the currently recommended treatment for advanced EGFR mutation-positive non-small cell lung cancer (NSCLC). Acquired resistance inevitably develops, with the EGFR T790M mutation comprising approximately 55% of the mechanisms of resistance following first- or second-generation EGFR-TKI therapy (e.g. gefitinib, erlotinib, afatinib, and dacomitinib). Patients without T790M are a heterogeneous group for whom platinum-based chemotherapy is currently recommended as a second-line treatment. In addition to secondary mutations in EGFR (e.g. T790M), the currently known resistance mechanisms can be classified into the following three categories: bypass pathways, downstream signaling pathways, and histologic transformations. Given the evolving knowledge and convenience of diagnosing acquired resistance mechanisms by next-generation sequencing and liquid biopsy, exploratory studies targeting these resistance mechanisms and incorporating immunotherapy into the treatment paradigm have become the mainstream of future development. This review focuses on acquired resistance mechanisms other than T790M that develop after first- or second-generation EGFR-TKI therapy. Exploratory second-line treatments targeting resistance mechanisms as well as combination immunotherapy and chemotherapy in ongoing clinical trials are reviewed here. We also highlight the recent development of next-generation sequencing and liquid biopsy in this field.
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Affiliation(s)
- Bin-Chi Liao
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | - Sebastian Griesing
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | - James Chih-Hsin Yang
- Department of Oncology, National Taiwan University Hospital, 7, Chung-Shan South Road, Taipei, 100, Taiwan, Republic of China
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Zhu B, Ren C, Du K, Zhu H, Ai Y, Kang F, Luo Y, Liu W, Wang L, Xu Y, Jiang X, Zhang Y. Olean-28,13b-olide 2 plays a role in cisplatin-mediated apoptosis and reverses cisplatin resistance in human lung cancer through multiple signaling pathways. Biochem Pharmacol 2019; 170:113642. [PMID: 31541631 DOI: 10.1016/j.bcp.2019.113642] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/16/2019] [Indexed: 12/20/2022]
Abstract
Lung cancer, similar to other chronic diseases, occurs due to perturbations in multiple signaling pathways. Mono-targeted therapies are not ideal since they are not likely to be effective for the treatment and prevention of lung cancer, and are often associated with drug resistance. Therefore, the development of multi-targeted agents is required for novel lung cancer therapies. Thioredoxin reductase (TrxR or TXNRD1) is a pivotal component of the thioredoxin (Trx) system. Various types of tumor cells are able to overexpress TrxR/Trx proteins in order to maintain tumor survival, and this overexpression has been shown to be associated with clinical outcomes, including irradiation and drug resistance. Emerging evidence has indicated that oleanolic acid (OA) and its derivatives exhibit potent anticancer activity, and are able to overcome drug resistance in cancer cell lines. In the present study, it was demonstrated that a novel synthesized OA family compound, olean-28,13b-olide 2 (OLO-2), synergistically enhanced cisplatin (CDDP)-mediated apoptosis, led to the activation of caspase-3 and the generation of reactive oxygen species (ROS), induced DNA damage, and inhibited the activation of the extracellular-signal-regulated kinase (ERK), signal transducer and activator of transcription 3 (STAT3), AKT and nuclear factor-κB (NF-κB) pathways in human multidrug-resistant A549/CDDP lung adenocarcinoma cells. Subsequent analyses revealed that OLO-2 inhibited P-glycoprotein (P-gp or ABCB1) and TrxR by reducing their expression at the protein and mRNA levels, and by suppressing P-gp ATPase and TrxR activities. Further biological evaluation indicated that OLO-2 significantly reduced Trx and excision repair cross-complementary1 (ERCC1) protein expression and significantly inhibited the proliferation of drug-sensitive (A549) and multidrug-resistant (A549/CDDP) non-small cell lung cancer (NSCLC) cells, but had no effect on non-tumor lung epithelial-like cells. In addition, the present study demonstrated, for the first time, to the best of our knowledge, that overexpressing or knocking down TrxR in NSCLC cells enhanced or attenuated, respectively, the resistance of NSCLC cells against CDDP, which indicated that TrxR plays an important role in CDDP resistance and functions as a protector of NSCLC against chemotherapeutic drugs. OLO-2 treatment also exhibited up to 4.6-fold selectivity against human lung adenocarcinoma cells. Taken together, the results of the present study shed light on the drug resistance-reversing effects of OLO-2 in lung cancer cells.
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Affiliation(s)
- Bin Zhu
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Caiping Ren
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China.
| | - Ke Du
- Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Hecheng Zhu
- Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Yong Ai
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Fenghua Kang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Yi Luo
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Weidong Liu
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Lei Wang
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Yang Xu
- Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Xingjun Jiang
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yihua Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China.
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Chen T, Xiao Q, Wang X, Wang Z, Hu J, Zhang Z, Gong Z, Chen S. miR-16 regulates proliferation and invasion of lung cancer cells via the ERK/MAPK signaling pathway by targeted inhibition of MAPK kinase 1 (MEK1). J Int Med Res 2019; 47:5194-5204. [PMID: 31379227 PMCID: PMC6833413 DOI: 10.1177/0300060519856505] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Objective The ERK/MAPK signaling pathway regulates cell proliferation and invasion. MAPK kinase 1 (MEK1) is a protein kinase upstream of ERK that can activate the pathway. Expression of microRNA (miR)-16 in lung cancer tissues is decreased. The aim of this study was to determine roles of miR-16 in proliferation and invasion of lung cancer cells. Methods We used a luciferase reporter assay to determine a regulatory relationship between miR-16 and MEK1 and assessed expression of MEK1 in normal lung cells and lung cancer cell lines. Plate cloning, flow cytometry, and Transwell experiments demonstrated the proliferation and invasion ability of cells transfected with wild-type and mutant MEK1. Results We confirmed a regulatory relationship between miR-16 and MEK1 mRNA. Expression of miR-16 was decreased and that of MEK1 and p-ERK1/2 were increased in lung cancer cell lines compared with normal cells. Transfection with miR-101 mimic or small interfering (si)-MEK1 significantly downregulated expression of MEK1 and p-ERK1/2 in Anip973 cells. Conclusions Decreased miR-16 expression may play a role in upregulating expression of MEK1 and promoting proliferation and invasion of lung cancer cells. Overexpression of miR-16 downregulated the ERK/MAPK pathway by inhibiting MEK1 expression, attenuating clone formation and invasion, and inhibiting cell proliferation.
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Affiliation(s)
- TianMing Chen
- The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, China
| | - Qi Xiao
- Biology Department, School of Life Science, Nanjing Normal University, Nanjing, Jiangsu, China
| | - XiaoJun Wang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China
| | - ZhongQiu Wang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China
| | - JingWen Hu
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China
| | - Zhi Zhang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China
| | - ZhuNan Gong
- Biology Department, School of Life Science, Nanjing Normal University, Nanjing, Jiangsu, China
| | - ShiLin Chen
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China
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Canadian Cancer Trials Group (CCTG) IND215: A phase Ib study of Selumetinib in patients with untreated advanced or metastatic NSCLC who are receiving standard chemotherapy regimens. Invest New Drugs 2018; 37:498-506. [DOI: 10.1007/s10637-018-0680-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 10/08/2018] [Indexed: 01/14/2023]
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Yi H, Li S, Li H, Wang P, Zheng H, Cheng X. Gefitinib induces non-small cell lung cancer H1650 cell apoptosis through downregulating tumor necrosis factor-related apoptosis-inducing ligand expression levels. Oncol Lett 2018; 16:4768-4772. [PMID: 30214609 DOI: 10.3892/ol.2018.9162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 03/16/2018] [Indexed: 11/06/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) presents severe threats to the lives of patients. Gefitinib is one of the first-line drugs available for the treatment of NSCLC in the clinical setting. The present study investigated the effects of gefitinib on NSCLC H1650 cell viability and apoptosis via MTT assays and flow cytometry. Western blot analysis was employed to detect tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) expression levels in H1650 cells. In the present study, H1650 cells were treated with TRAIL siRNA or an empty plasmid vector control, followed by gefitinib treatment to investigate apoptosis. Gefitinib treatment markedly inhibited H1650 cell viability, induced apoptosis and reduced TRAIL expression levels. TRAIL interference enhanced H1650 cell apoptosis induced by gefitinib. TRAIL overexpression suppressed gefitinib-induced H1650 cell apoptosis. In addition, gefitinib induced NSCLC H1650 cell apoptosis by downregulating TRAIL expression levels.
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Affiliation(s)
- Hanjie Yi
- Department of Radiation Oncology, Yinzhou Affiliated Hospital to Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
| | - Shanfeng Li
- Department of Central Laboratory, Yinzhou Affiliated Hospital to Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
| | - Hui Li
- Department of Radiation Oncology, Yinzhou Affiliated Hospital to Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
| | - Peng Wang
- Department of Radiation Oncology, Yinzhou Affiliated Hospital to Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
| | - Hongyu Zheng
- Department of Radiation Oncology, Yinzhou Affiliated Hospital to Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
| | - Xiaochun Cheng
- Department of Radiation Oncology, Yinzhou Affiliated Hospital to Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
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13
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Yang Z, Tam KY. Combination Strategies Using EGFR-TKi in NSCLC Therapy: Learning from the Gap between Pre-Clinical Results and Clinical Outcomes. Int J Biol Sci 2018; 14:204-216. [PMID: 29483838 PMCID: PMC5821041 DOI: 10.7150/ijbs.22955] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 12/09/2017] [Indexed: 01/04/2023] Open
Abstract
Although epidermal growth factor receptor (EGFR) inhibitors have been used to treat non-small cell lung cancer (NSCLC) for decades with great success in patients with EGFR mutations, acquired resistance inevitably occurs after long-term exposure. More recently, combination therapy has emerged as a promising strategy to overcome this issue. Several experiments have been carried out to evaluate the synergism of combination therapy both in vitro and in vivo. Additionally, many clinical studies have been carried out to investigate the feasibility of treatment with EGFR-tyrosine kinase inhibitors (TKi) combined with other NSCLC treatments, including radiotherapy, cytotoxic chemotherapies, targeted therapies, and emerging immunotherapies. However, a significant gap still exists when applying pre-clinical results to clinical scenarios, which hinders the development and use of these strategies. This article is a literature review analysing the rationalities and controversies in the transition from pre-clinical investigation to clinical practice associated with various combination strategies. It also highlights clues and challenges regarding future combination therapeutic options in NSCLC treatment.
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Affiliation(s)
| | - Kin Yip Tam
- Faculty of Health Science, University of Macau, Taipa, Macau, China
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14
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Organotypic three-dimensional cancer cell cultures mirror drug responses in vivo: lessons learned from the inhibition of EGFR signaling. Oncotarget 2017; 8:107423-107440. [PMID: 29296175 PMCID: PMC5746077 DOI: 10.18632/oncotarget.22475] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 10/27/2017] [Indexed: 01/07/2023] Open
Abstract
Complex three-dimensional (3D) in vitro models that recapitulate human tumor biology are essential to understand the pathophysiology of the disease and to aid in the discovery of novel anti-cancer therapies. 3D organotypic cultures exhibit intercellular communication, nutrient and oxygen gradients, and cell polarity that is lacking in two-dimensional (2D) monolayer cultures. In the present study, we demonstrate that 2D and 3D cancer models exhibit different drug sensitivities towards both targeted inhibitors of EGFR signaling and broad acting cytotoxic agents. Changes in the kinase activities of ErbB family members and differential expression of apoptosis- and survival-associated genes before and after drug treatment may account for the differential drug sensitivities. Importantly, EGFR oncoprotein addiction was evident only in the 3D cultures mirroring the effect of EGFR inhibition in the clinic. Furthermore, targeted drug efficacy was strongly increased when incorporating cancer-associated fibroblasts into the 3D cultures. Taken together, we provide conclusive evidence that complex 3D cultures are more predictive of the clinical outcome than their 2D counterparts. In the future, 3D cultures will be instrumental for understanding the mode of action of drugs, identifying genotype-drug response relationships and developing patient-specific and personalized cancer treatments.
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15
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Tong CW, Wu WK, Loong HH, Cho WC, To KK. Drug combination approach to overcome resistance to EGFR tyrosine kinase inhibitors in lung cancer. Cancer Lett 2017; 405:100-110. [DOI: 10.1016/j.canlet.2017.07.023] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/22/2017] [Accepted: 07/23/2017] [Indexed: 10/19/2022]
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16
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Lee HY, Kim IK, Lee HI, Mo JY, Yeo CD, Kang HH, Moon HS, Lee SH. The apoptotic effect of simvastatin via the upregulation of BIM in nonsmall cell lung cancer cells. Exp Lung Res 2016; 42:14-23. [DOI: 10.3109/01902148.2015.1125970] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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17
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Fernández-Arroyo S, Huete-Toral F, Pérez de Lara MJ, de la Luz Cádiz-Gurrea M, Legeai-Mallet L, Micol V, Segura-Carretero A, Joven J, Pintor J. The impact of polyphenols on chondrocyte growth and survival: a preliminary report. Food Nutr Res 2015; 59:29311. [PMID: 26445212 PMCID: PMC4595466 DOI: 10.3402/fnr.v59.29311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/08/2015] [Accepted: 09/08/2015] [Indexed: 12/11/2022] Open
Abstract
Background Imbalances in the functional binding of fibroblast growth factors (FGFs) to their receptors (FGFRs) have consequences for cell proliferation and differentiation that in chondrocytes may lead to degraded cartilage. The toxic, proinflammatory, and oxidative response of cytokines and FGFs can be mitigated by dietary polyphenols. Objective We explored the possible effects of polyphenols in the management of osteoarticular diseases using a model based on the transduction of a mutated human FGFR3 (G380R) in murine chondrocytes. This mutation is present in most cases of skeletal dysplasia and is responsible for the overexpression of FGFR3 that, in the presence of its ligand, FGF9, results in toxic effects leading to altered cellular growth. Design Different combinations of dietary polyphenols derived from plant extracts were assayed in FGFR3 (G380R) mutated murine chondrocytes, exploring cell survival, chloride efflux, extracellular matrix (ECM) generation, and grade of activation of mitogen-activated protein kinases. Results Bioactive compounds from Hibiscus sabdariffa reversed the toxic effects of FGF9 and restored normal growth, suggesting a probable translation to clinical requests in humans. Indeed, these compounds activated the intracellular chloride efflux, increased ECM generation, and stimulated cell proliferation. The inhibition of mitogen-activated protein kinase phosphorylation was interpreted as the main mechanism governing these beneficial effects. Conclusions These findings support the rationale behind the encouragement of the development of drugs that repress the overexpression of FGFRs and suggest the dietary incorporation of supplementary nutrients in the management of degraded cartilage.
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Affiliation(s)
- Salvador Fernández-Arroyo
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, IISPV, Universitat Rovira i Virgili, Reus, Spain.,Campus of International Excellence Southern Catalonia, Tarragona, Spain;
| | - Fernando Huete-Toral
- Department of Biochemistry, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - María Jesús Pérez de Lara
- Department of Biochemistry, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - María de la Luz Cádiz-Gurrea
- Functional Food Research and Development Center, Health Science Technological Park, Granada, Spain.,Department of Analytical Chemistry, University of Granada, Granada, Spain
| | | | - Vicente Micol
- Institute of Molecular and Cell Biology, Miguel Hernández University, Elche, Spain
| | - Antonio Segura-Carretero
- Functional Food Research and Development Center, Health Science Technological Park, Granada, Spain.,Department of Analytical Chemistry, University of Granada, Granada, Spain
| | - Jorge Joven
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, IISPV, Universitat Rovira i Virgili, Reus, Spain.,Campus of International Excellence Southern Catalonia, Tarragona, Spain
| | - Jesús Pintor
- Department of Biochemistry, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain;
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18
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Yar Saglam AS, Alp E, Elmazoglu Z, Menevse S. Treatment with cucurbitacin B alone and in combination with gefitinib induces cell cycle inhibition and apoptosis via EGFR and JAK/STAT pathway in human colorectal cancer cell lines. Hum Exp Toxicol 2015; 35:526-43. [PMID: 26183715 DOI: 10.1177/0960327115595686] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The epidermal growth factor receptor (EGFR) associated with signaling pathways, such as Janus kinase (JAK)/signal transducer and activator of transcription (STAT), plays an important role in colorectal cancers (CRCs). Gefitinib (Gef) is an orally active inhibitor targeting the adenosine tri phosphate-binding domain of EGFR, and cucurbitacin B (CuB) is a selective inhibitor of JAK/STAT signaling with potent antitumor activity via suppression of STAT3 phosphorylation, but the underlying mechanism is not clear. We aimed to investigate the apoptotic and antiproliferative effects of CuB as a single agent and in combination with Gef on both HT-29 and HCT-116 cell lines. Cell proliferation, cell cycle distribution, and apoptosis were evaluated using viability assay, fluorescent microscopy, cytotoxicity assay, proliferation, DNA fragmentation, and cleaved caspase 3 levels. Real-time polymerase chain reaction and Western blot analyses were performed to determine the expression of relevant genes and proteins including antiapoptotic, proapoptotic, and cell cycle regulation. EGFR, phosphorylated EGFR (pEGFR), STAT3, and pSTAT3 proteins were evalutaed with Western blot analysis. Our results showed that, compared to CuB alone, CuB plus Gef treatment caused a significant growth and cell cycle inhibition and induced apoptosis in both cell lines. Also CuB plus Gef treatment decreased DNA synthesis rate more effectively than CuB alone. Treatment with CuB alone and in combination with Gef decreased the expression levels of B-Cell CLL/Lymphoma 2 (Bcl-2), BCL2-like 1 (BCL2L1), cyclin D1, pSTAT3, and pEGFR and increased the expression levels of Bcl-2-like protein 4, Bcl-2 homologous antagonist/killer, Bcl-2-associated death promoter, Bcl-2-like protein 11, and p27kip1 levels. Our results suggest that treatment with CuB alone and more likely in combination with Gef may be a considerable alternative therapeutic approach for CRC, at least in vitro.
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Affiliation(s)
- A S Yar Saglam
- Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara, Turkey
| | - E Alp
- Department of Medical Biology, Faculty of Medicine, Giresun University, Giresun, Turkey
| | - Z Elmazoglu
- Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara, Turkey
| | - S Menevse
- Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara, Turkey
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19
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Wu DW, Chen CY, Chu CL, Lee H. Paxillin confers resistance to tyrosine kinase inhibitors in EGFR-mutant lung cancers via modulating BIM and Mcl-1 protein stability. Oncogene 2015; 35:621-30. [PMID: 25915848 DOI: 10.1038/onc.2015.120] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 03/11/2015] [Accepted: 03/13/2015] [Indexed: 11/09/2022]
Abstract
Tyrosine kinase inhibitors (TKIs) have been documented to have substantial clinical benefits to non-small cell lung cancer with epidermal growth factor receptor (EGFR) mutation. TKI resistance occurs in nearly all patients who receive TKI-targeting therapy, resulting in a modest overall survival benefit. Therefore, establishing a biomarker for early prediction and exploring the mechanism of primary TKI resistance is essential for improving the therapeutic efficacy in non-small cell lung cancer patients. In this study, we provide evidence indicating that paxillin (PXN) overexpression may confer TKI resistance in EGFR-mutant lung cancer cells. Mechanistically, PXN-mediated extracellular signal-regulated kinases (ERK) activation is responsible for TKI resistance via decreased Bcl2-interacting mediator of cell death (BIM) and increased Mcl-1 expression due to modulating their protein stabilities by phosphorylation of BIM at serine 69 and Mcl-1 at threonine 163. The mechanistic action in the cell model was further confirmed by the observation of xenograft tumors in nude mice, revealing that the PXN-mediated TKI resistance was conquered by ERK inhibitor (AZD6244) and Bcl-2 family inhibitor (obatoclax), but the TKI resistance overcome by AZD6244 is more effective than that of obatoclax. Therefore, we suggest that PXN expression may be useful in predicting primary TKI resistance, and combining TKI with ERK inhibitors may clinically benefit EGFR-mutant non-small cell lung cancer patients whose tumors exhibit high PXN expression.
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Affiliation(s)
- D-W Wu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - C-Y Chen
- Cancer Center, China Medical University Hospital, Taichung, Taiwan, ROC.,Department of Surgery, Chung Shan Medical University Hospital, Taichung, Taiwan, ROC
| | - C-L Chu
- Cancer Center, China Medical University Hospital, Taichung, Taiwan, ROC
| | - H Lee
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
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20
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Segovia-Mendoza M, Díaz L, González-González ME, Martínez-Reza I, García-Quiroz J, Prado-Garcia H, Ibarra-Sánchez MJ, Esparza-López J, Larrea F, García-Becerra R. Calcitriol and its analogues enhance the antiproliferative activity of gefitinib in breast cancer cells. J Steroid Biochem Mol Biol 2015; 148:122-31. [PMID: 25510900 DOI: 10.1016/j.jsbmb.2014.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 12/06/2014] [Accepted: 12/10/2014] [Indexed: 01/26/2023]
Abstract
Coexpression of EGFR and HER2 has been associated with poor disease outcome, high rates of metastasis and resistance to conventional treatments in breast cancer. Gefitinib, a tyrosine kinase inhibitor, reduces both cell proliferation and tumor growth of breast cancer cells expressing EGFR and/or HER2. On the other hand, calcitriol and some of its synthetic analogs are important antineoplastic agents in different breast cancer subtypes. Herein, we evaluated the effects of the combined treatment of gefitinib with calcitriol or its analogs on cell proliferation in breast cancer cells. The presence of EGFR, HER2 and vitamin D receptor were evaluated by Western blot in two established breast cancer cell lines: SUM-229PE, SKBR3 and a primary breast cancer-derived cell line. The antiproliferative effects of gefitinib alone or in combination with calcitriol and its analogs, calcipotriol and EB1089, were assessed by growth assay using a DNA content-based method. Inhibitory concentrations on cell proliferation were calculated by non-linear regression analysis using sigmoidal fitting of dose-response curves. Pharmacological effects of the drug combinations were calculated by the Chou-Talalay method. Phosphorylation of ERK1/2 MAPK was evaluated by Western blot. Gene expression of EGFR, HER2 and BIM was assessed by real time PCR. BIM protein levels were analyzed in cells by flow cytometry. The effects of the drugs alone or combinated on cell cycle phases were determined using propidium iodide. Apoptosis was evaluated by detection of subG1 peak and determination of active caspase 3 by flow cytometry. Gefitinib, calcitriol, calcipotriol and EB1089 inhibited cell proliferation in a dose dependent manner. The combinations of gefitinib with calcitriol or its analogs were more effective to inhibit cell growth than each compound alone in all breast cancer cells studied. The gene expression of EGFR and HER2 was downregulated and not affected, respectively, by the combined treatment. Furthermore, phosphorylation of ERK 1/2 was inhibited a greater extent in co-treated cells than in the cells treated with alone compounds. The combination of gefitinib with calcitriol or their synthetic analogs induced apoptosis in SUM-229PE cells, this was shown by the significant upregulation of BIM protein levels, higher percentages of cells in subG1 peak and increase of caspase 3-positive cells. The combination of gefitinib with calcitriol or their synthetic analogs resulted in a greater antiproliferative effect than with either of the agents alone in EGFR and HER2 positive breast cancer cells. The mechanistic explanation for these results includes downregulation of MAPK signaling pathway, decrease of cells in G2/M phase and induction of apoptosis mediated by upregulation of BIM and activation of caspase 3. This article is part of a Special Issue entitled '17th Vitamin D Workshop'.
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Affiliation(s)
- Mariana Segovia-Mendoza
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico; Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Av. Cuidad Universitaria 3000, Coyoacán 04360, México, D.F, Mexico
| | - Lorenza Díaz
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico
| | - María Elena González-González
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico
| | - Isela Martínez-Reza
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico
| | - Janice García-Quiroz
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico
| | - Heriberto Prado-Garcia
- Departamento de Enfermedades Crónico-Degenerativas, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Calzada de Tlalpan 4502, Sección XVI, Tlalpan 14080, México, D.F., Mexico
| | - María J Ibarra-Sánchez
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico
| | - José Esparza-López
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico
| | - Fernando Larrea
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico
| | - Rocío García-Becerra
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Sección XVI, Tlalpan 14000, México, D.F., Mexico.
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21
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Hwang KE, Kim YS, Hwang YR, Kwon SJ, Park DS, Cha BK, Kim BR, Yoon KH, Jeong ET, Kim HR. Enhanced apoptosis by pemetrexed and simvastatin in malignant mesothelioma and lung cancer cells by reactive oxygen species-dependent mitochondrial dysfunction and Bim induction. Int J Oncol 2014; 45:1769-77. [PMID: 25096993 DOI: 10.3892/ijo.2014.2584] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 07/16/2014] [Indexed: 11/06/2022] Open
Abstract
Pemetrexed is a multitarget antifolate currently used for the treatment of malignant mesothelioma and non-small cell lung cancer (NSCLC). Statins, 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors used primarily for hyperlidpidemia, have been studied for their antiproliferative and pro-apoptotic effects. However, the effects of simvastatin on pemetrexed-induced apoptosis have not been investigated. In this study, we investigated whether combination treatment with pemetrexed and simvastatin potentiates the apoptotic activity above that is seen with either drug alone in malignant mesothelioma and NSCLC cells. We found that the combination of pemetrexed and simvastatin induced more extensive caspase-dependent apoptosis than either drug alone in malignant mesothelioma cells (MSTO-211) or NSCLC cells (A549). In addition, reactive oxygen species (ROS) generation in cells treated with both pemetrexed and simvastatin was markedly increased compared to cells treated with either pemetrexed or simvastatin alone. Combination treatment also increased the loss of mitochondrial membrane potential, increased cytosolic release of cytochrome c, and altered expression of inhibitor of apoptosis proteins (IAP) and B-cell lymphoma-2 (Bcl-2) families of apoptosis related proteins. On the other hand, pretreatment with N-acetylcysteine (NAC) prevented apoptosis and mitochondrial dysfunction by pemetrexed and simvastatin. In addition, Bim siRNA conferred protection against apoptosis induced by pemetrexed and simvastatin. These results suggest that combination of pemetrexed and simvastatin potentiates their apoptotic activity beyond that of either drug alone in malignant mesothelioma and lung cancer cells. This activity is mediated through ROS-dependent mitochondrial dysfunction and Bim induction.
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Affiliation(s)
- Ki-Eun Hwang
- Department of Internal Medicine, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Young-Suk Kim
- Department of Internal Medicine, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Yu-Ri Hwang
- Department of Internal Medicine, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Su-Jin Kwon
- Department of Internal Medicine, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Do-Sim Park
- Department of Laboratory Medicine, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Byong-Ki Cha
- Department of Thoracic and Cardiovascular Surgery, Chonbuk National University Medical School, Jeonju, Jeonbuk 561-180, Republic of Korea
| | - Byoung-Ryun Kim
- Department of Obstetrics and Gynecology, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Kwon-Ha Yoon
- Department of Radiology, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Eun-Taik Jeong
- Department of Internal Medicine, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Hak-Ryul Kim
- Department of Internal Medicine, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
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Hamada S, Masamune A, Shimosegawa T. Novel therapeutic strategies targeting tumor-stromal interactions in pancreatic cancer. Front Physiol 2013; 4:331. [PMID: 24273517 PMCID: PMC3822297 DOI: 10.3389/fphys.2013.00331] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 10/24/2013] [Indexed: 12/24/2022] Open
Abstract
Therapy-resistance and postoperative recurrence are causes of the poor prognosis in pancreatic cancer. Conventional therapies have a limited impact on the control of pancreatic cancer, resulting in the rapid re-growth of the tumor. The indispensable role of tumor-stromal interaction, which acts as a defender of cancer cells and enhances malignant potential, is being uncovered now. For example, specific signaling pathways for desmoplasia induction have been identified, such as sonic hedgehog (Shh) or connective tissue growth factor (CTGF), whose inhibition causes desmoplasia depletion and therapeutic advantages at least in in vivo mouse models of pancreatic cancer. Revolutions in drug delivery methods have led to the establishment of novel chemotherapeutic regimens, with better patient survival. Furthermore, mechanisms of immunosuppression in the pancreatic cancer-bearing host were clarified by the identification of myeloid-derived suppressor cells (MDSCs), which also promote disease progression. Strategies to target these components of the tumor stroma revealed certain anticancer effects in vitro and in vivo, suggesting the possibility of stroma-targeting therapy. Suppression of the stromal cell function increases the sensitivity of pancreatic cancer cells to therapeutic intervention. Further study will clarify the complex nature of the tumor microenvironment, the targeting of which has the potential to improve clinical outcome.
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Affiliation(s)
- Shin Hamada
- Division of Gastroenterology, Tohoku University Graduate School of Medicine Sendai, Miyagi, Japan
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