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Karimi Z, Taymouri S, Minaiyan M, Mirian M. Evaluation of thermosensitive chitosan hydrogel containing gefitinib loaded cellulose acetate butyrate nanoparticles in a subcutaneous breast cancer model. Int J Pharm 2022; 624:122036. [PMID: 35868480 DOI: 10.1016/j.ijpharm.2022.122036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/27/2022] [Accepted: 07/17/2022] [Indexed: 10/17/2022]
Abstract
In the present study, gefitinib loaded cellulose acetate butyrate nanoparticles (Gnb-NPs) were prepared and then incorporated into thermo-sensitive chitosan/β-glycerophosphate hydrogels for intratumoral administration in mice bearing breast cancer. Accordingly, Gnb-NPs were prepared using the solvent evaporation process and optimized by applying a two-level fractional factorial design. Properties of NPs, including particle size, zeta potential (ZP), polydispersity index (PdI), encapsulation efficiency (EE) % and drug loading (DL) %, were investigated; the optimized Gnb-NPs were then loaded in chitosan hydrogels (Gnb-NPs-Hydrogel). The formulated Gnb-NPs-Hydrogel was assessed in terms of gelling time, release behavior, injectability, swelling and degradation behavior. The anti-cancer efficacy of Gnb-NPs-Hydrogel was evaluated in vitro against the 4 T1 breast cancer cell line and in vivo in breast tumor bearing mice. The optimized formulation showed spherical particles with the size of 156.50 ± 2.40 nm, PdI of 0.20 ± 0.002, ZP of -4.90 ± 0.04 mV, EE of 99.77 ± 0.09 % and DL of 20.59 ± 0.05 %. Incorporating Gnb-NPs into the hydrogel led to the decrease of the drug release rate. Gnb-NPs-Hydrogel displayed a greater cytotoxic effect in comparison to the free Gnb and Gnb-Hydrogel in 4 T1 cancer cells. Furthermore,intratumorallyinjectedGnb-NPs-Hydrogel showed the strongest antitumor efficacy in vivo. The superior performance of Gnb-NPs-Hydrogel, thus, demonstrated its potential for the treatment of breast cancer.
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Affiliation(s)
- Zahra Karimi
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Somayeh Taymouri
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Mohsen Minaiyan
- Department of Pharmacology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mina Mirian
- Department of Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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Wang P, Mak VCY, Cheung LWT. Drugging IGF-1R in cancer: New insights and emerging opportunities. Genes Dis 2022; 10:199-211. [PMID: 37013053 PMCID: PMC10066341 DOI: 10.1016/j.gendis.2022.03.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 03/02/2022] [Indexed: 11/19/2022] Open
Abstract
The insulin-like growth factor (IGF) axis plays important roles in cancer development and metastasis. The type 1 IGF receptor (IGF-1R) is a key member in the IGF axis and has long been recognized for its oncogenic role in multiple cancer lineages. Here we review the occurrence of IGF-1R aberrations and activation mechanisms in cancers, which justify the development of anti-IGF-1R therapies. We describe the therapeutic agents available for IGF-1R inhibition, with focuses on the recent or ongoing pre-clinical and clinical studies. These include antisense oligonucleotide, tyrosine kinase inhibitors and monoclonal antibodies which may be conjugated with cytotoxic drug. Remarkably, simultaneous targeting of IGF-1R and several other oncogenic vulnerabilities has shown early promise, highlighting the potential benefits of combination therapy. Further, we discuss the challenges in targeting IGF-1R so far and new concepts to improve therapeutic efficacy such as blockage of the nuclear translocation of IGF-1R.
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Zhu M, Wang DD, Yan H. Genotype-determined EGFR-RTK heterodimerization and its effects on drug resistance in lung Cancer treatment revealed by molecular dynamics simulations. BMC Mol Cell Biol 2021; 22:34. [PMID: 34112110 PMCID: PMC8191231 DOI: 10.1186/s12860-021-00358-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 03/10/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Epidermal growth factor receptor (EGFR) and its signaling pathways play a vital role in pathogenesis of lung cancer. By disturbing EGFR signaling, mutations of EGFR may lead to progression of cancer or the emergence of resistance to EGFR-targeted drugs. RESULTS We investigated the correlation between EGFR mutations and EGFR-receptor tyrosine kinase (RTK) crosstalk in the signaling network, in order to uncover the drug resistance mechanism induced by EGFR mutations. For several EGFR wild type (WT) or mutated proteins, we measured the EGFR-RTK interactions using several computational methods based on molecular dynamics (MD) simulations, including geometrical characterization of the interfaces and conventional estimation of free energy of binding. Geometrical properties, namely the matching rate of atomic solid angles in the interfaces and center-of-mass distances between interacting atoms, were extracted relying on Alpha Shape modeling. For a couple of RTK partners (c-Met, ErbB2 and IGF-1R), results have shown a looser EGFR-RTK crosstalk for the drug-sensitive EGFR mutant while a tighter crosstalk for the drug-resistant mutant. It guarantees the genotype-determined EGFR-RTK crosstalk, and further proposes a potential drug resistance mechanism by amplified EGFR-RTK crosstalk induced by EGFR mutations. CONCLUSIONS This study will lead to a deeper understanding of EGFR mutation-induced drug resistance mechanisms and promote the design of innovative drugs.
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Affiliation(s)
- Mengxu Zhu
- Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong.
| | - Debby D Wang
- Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong
| | - Hong Yan
- Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong
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Liu L, Yang J, Wang C. Analysis of the prognostic significance of solute carrier (SLC) family 39 genes in breast cancer. Biosci Rep 2020; 40:BSR20200764. [PMID: 32744318 PMCID: PMC7426635 DOI: 10.1042/bsr20200764] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/15/2020] [Accepted: 07/31/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Breast cancer (BC) is the most common malignancy in females and remains a main cause of cancer-associated death worldwide. The solute carrier (SLC) groups of membrane transport proteins, which control the influx of zinc, participate in ranging of physiological processes and may provide novel therapeutic targets of cancers. However, the prognostic values of individual SLC family 39 (SLC39A) genes in patients with BC are not clarified. MATERIALS AND METHODS The mRNA expression of SLC family 39 genes in BC was evaluated by using the UALCAN database. The prognostic values of overall survival (OS) of SLC family 39 genes in patients with BC were investigated by Kaplan-Meier plotter. The survival analysis of cells was determined by Project Achilles. RESULTS The analytic results suggested that SLC39A1, SLC39A3, SLC39A4, SLC39A5, SLC39A6, SLC39A7, SLC39A9, SLC39A10, SLC39A11 and SLC39A13 were significantly up-regulated in BC tissues compared with normal breast tissues. However, SLC39A8 and SLC39A14 were expressed higher in normal tissues than in BC tissues. High expression of SLC39A2, SLC39A3, SLC39A4, SLC39A5, SLC39A7, SLC39A12 and SLC39A13 was significantly associated with worse OS in patients with BC. In contrast, high mRNA levels of SLC39A6 and SLC39A14 indicated favorable OS. Through subgroup analysis, all abnormal expressed SLC family members were correlated with prognoses of patients with specific BC. Moreover, SLC39A7 was associated with proliferation and cloning of BC. CONCLUSIONS Our results suggested that SLC family 39 members were promising prognostic biomarkers of BC. The SLC39A7 played a key role in growth and survival of BC cells.
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Affiliation(s)
- Limei Liu
- Department of Keratonosus, Weifang Eye Hospital, Weifang 261053, Shandong, China
| | - Jiaomin Yang
- Department of Laboratory Medicine, Weifang Yidu Central Hospital, Qingzhou 262500, Shandong, China
| | - Chao Wang
- Department of Pathogen Biology, Weifang Medical University, Weifang 261053, Shandong, China
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Höti N, Lih TS, Pan J, Zhou Y, Yang G, Deng A, Chen L, Dong M, Yang RB, Tu CF, Haffner MC, Kay Li Q, Zhang H. A Comprehensive Analysis of FUT8 Overexpressing Prostate Cancer Cells Reveals the Role of EGFR in Castration Resistance. Cancers (Basel) 2020; 12:cancers12020468. [PMID: 32085441 PMCID: PMC7072180 DOI: 10.3390/cancers12020468] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/03/2020] [Accepted: 02/10/2020] [Indexed: 01/12/2023] Open
Abstract
The emergence of castration-resistance is one of the major challenges in the management of patients with advanced prostate cancer. Although the spectrum of systemic therapies that are available for use alongside androgen deprivation for treatment of castration-resistant prostate cancer (CRPC) is expanding, none of these regimens are curative. Therefore, it is imperative to apply systems approaches to identify and understand the mechanisms that contribute to the development of CRPC. Using comprehensive proteomic approaches, we show that a glycosylation-related enzyme, alpha (1,6) fucosyltransferase (FUT8), which is upregulated in CRPC, might be responsible for resistance to androgen deprivation. Mechanistically, we demonstrated that overexpression of FUT8 resulted in upregulation of the cell surface epidermal growth factor receptor (EGFR) and corresponding downstream signaling, leading to increased cell survival in androgen-depleted conditions. We studied the coregulatory mechanisms of EGFR and FUT8 expression in CRPC xenograft models and found that castration induced FUT8 overexpression associated with increased expression of EGFR. Taken together, our findings suggest a crucial role played by FUT8 as a mediator in switching prostate cancer cells from nuclear receptor signaling (androgen receptor) to the cell surface receptor (EGFR) mechanisms in escaping castration-induced cell death. These findings have clinical implication in understanding the role of FUT8 as a master regulator of cell surface receptors in cancer-resistant phenotypes.
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Affiliation(s)
- Naseruddin Höti
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
- Correspondence: ; Tel.: (410)-502-8149; Fax: (443)-287-6388
| | - Tung-Shing Lih
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
| | - Jianbo Pan
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
| | - Yangying Zhou
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
| | - Ganglong Yang
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
| | - Ashely Deng
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
| | - Lijun Chen
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
| | - Mingmimg Dong
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
| | - Ruey-Bing Yang
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan; (R.-B.Y.); (C.-F.T.)
| | - Cheng-Fen Tu
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan; (R.-B.Y.); (C.-F.T.)
| | - Michael C. Haffner
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Qing Kay Li
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Hui Zhang
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; (T.-S.L.); (J.P.); (Y.Z.); (G.Y.); (A.D.); (L.C.); (M.D.); (M.C.H.); (Q.K.L.); (H.Z.)
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Krasanakis T, Nikolouzakis TK, Sgantzos M, Mariolis-Sapsakos T, Souglakos J, Spandidos DA, Tsitsimpikou C, Tsatsakis A, Tsiaoussis J. Role of anabolic agents in colorectal carcinogenesis: Myths and realities (Review). Oncol Rep 2019; 42:2228-2244. [PMID: 31578582 PMCID: PMC6826302 DOI: 10.3892/or.2019.7351] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/01/2019] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is one of the four leading causes of cancer‑related mortality worldwide. Even though over the past few decades the global scientific community has made tremendous efforts to understand this entity, many questions remain to be raised on this issue and even more to be answered. Epidemiological findings have unveiled numerous environmental and genetic risk factors, each one contributing to a certain degree to the final account of new CRC cases. Moreover, different trends have been revealed regarding the age of onset of CRC between the two sexes. That, in addition to newly introduced therapeutic approaches for various diseases based on androgens, anti‑androgens and anabolic hormones has raised some concerns regarding their possible carcinogenic effects or their synergistic potential with other substances/risk factors, predisposing the individual to CRC. Notably, despite the intense research on experimental settings and population studies, the conclusions regarding the majority of anabolic substances are ambiguous. Some of these indicate the carcinogenic properties of testosterone, dihydrotestosterone (DHT), growth hormone and insulin‑like growth factor (IGF) and others, demonstrating their neutral nature or even their protective one, as in the case of vitamin D. Thus, the synergistic nature of anabolic substances with other CRC risk factors (such as type 2 diabetes mellitus, metabolic syndrome and smoking) has emerged, suggesting a more holistic approach.
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Affiliation(s)
- Theodore Krasanakis
- Laboratory of Anatomy-Histology-Embryology, Medical School, University of Crete, 71110 Heraklion, Greece
| | | | - Markos Sgantzos
- Faculty of Medicine, Department of Anatomy, Faculty of Medicine, University of Thessaly, 41221 Larissa, Greece
| | - Theodore Mariolis-Sapsakos
- National and Kapodistrian University of Athens, Agioi Anargyroi General and Oncologic Hospital of Kifisia, 14564 Athens, Greece
| | - John Souglakos
- Department of Medical Oncology, University General Hospital of Heraklion, 71110 Heraklion, Greece
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, Medical School, University of Crete, 71409 Heraklion, Greece
| | | | - Aristidis Tsatsakis
- Department of Forensic Sciences and Toxicology, Medical School, University of Crete, 71409 Heraklion, Greece
| | - John Tsiaoussis
- Laboratory of Anatomy-Histology-Embryology, Medical School, University of Crete, 71110 Heraklion, Greece
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Li L, He S, Yu L, Elshazly EH, Wang H, Chen K, Zhang S, Ke L, Gong R. Codelivery of DOX and siRNA by folate-biotin-quaternized starch nanoparticles for promoting synergistic suppression of human lung cancer cells. Drug Deliv 2019; 26:499-508. [PMID: 31033359 PMCID: PMC6493220 DOI: 10.1080/10717544.2019.1606363] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 11/17/2022] Open
Abstract
In this paper, the self-assembled folate-biotin-quaternized starch nanoparticles (FBqS NPs) were used as carrier system of doxorubicin (DOX) and siRNAIGF1R for the codelivery of both into human lung adenocarcinoma cell lines (A549 cells) in vitro. The cytotoxicity, targeted ligand competition, cell proliferation inhibition, cellular uptake, endocytosis mechanism and target protein suppression of drug-loaded FBqS NPs were evaluated in detail. Compared with several other drug formulations under same condition, siRNAIGF1R/DOX/FBqS NPs exhibited the greatest cytotoxicity to A549 cells and the cytotoxicity was competitively inhibited by free folate in dose-dependent manner. The A549 cells treated by siRNAIGF1R/DOX/FBqS NPs showed the lowest cell proliferation capacity. The energy-dependent clathrin- and caveolae-mediated endocytosis might be the primary cellular uptake mechanism of drug-loaded FBqS NPs. The expression of IGF1R protein in A549 cells treated by siRNAIGF1R/FBqS NPs declined dramatically. So the FBqS NPs were expected as the co-carrier system of chemotherapeutants and siRNAs for future clinical application.
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Affiliation(s)
- Liangping Li
- College of Life Science, Anhui Normal University, Wuhu, P R China
- Department of Physical Education, Anhui College of Traditional Chinese Medicine, Wuhu, P R China
| | - Suoju He
- College of Life Science, Anhui Normal University, Wuhu, P R China
| | - Lizhen Yu
- College of Life Science, Anhui Normal University, Wuhu, P R China
- School of Pharmacy, Wannan Medical College, Wuhu, P R China
| | - Ezzat H Elshazly
- College of Life Science, Anhui Normal University, Wuhu, P R China
- Department of Botany and Microbiology, Faculty of Science, Al Azhar University, Assiut, Egypt
| | - Hui Wang
- College of Life Science, Anhui Normal University, Wuhu, P R China
| | - Kuanmin Chen
- College of Life Science, Anhui Normal University, Wuhu, P R China
| | - Song Zhang
- College of Life Science, Anhui Normal University, Wuhu, P R China
| | - Lixia Ke
- College of Life Science, Anhui Normal University, Wuhu, P R China
| | - Renmin Gong
- College of Life Science, Anhui Normal University, Wuhu, P R China
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8
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Network-based Biased Tree Ensembles (NetBiTE) for Drug Sensitivity Prediction and Drug Sensitivity Biomarker Identification in Cancer. Sci Rep 2019; 9:15918. [PMID: 31685861 PMCID: PMC6828742 DOI: 10.1038/s41598-019-52093-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/07/2019] [Indexed: 12/15/2022] Open
Abstract
We present the Network-based Biased Tree Ensembles (NetBiTE) method for drug sensitivity prediction and drug sensitivity biomarker identification in cancer using a combination of prior knowledge and gene expression data. Our devised method consists of a biased tree ensemble that is built according to a probabilistic bias weight distribution. The bias weight distribution is obtained from the assignment of high weights to the drug targets and propagating the assigned weights over a protein-protein interaction network such as STRING. The propagation of weights, defines neighborhoods of influence around the drug targets and as such simulates the spread of perturbations within the cell, following drug administration. Using a synthetic dataset, we showcase how application of biased tree ensembles (BiTE) results in significant accuracy gains at a much lower computational cost compared to the unbiased random forests (RF) algorithm. We then apply NetBiTE to the Genomics of Drug Sensitivity in Cancer (GDSC) dataset and demonstrate that NetBiTE outperforms RF in predicting IC50 drug sensitivity, only for drugs that target membrane receptor pathways (MRPs): RTK, EGFR and IGFR signaling pathways. We propose based on the NetBiTE results, that for drugs that inhibit MRPs, the expression of target genes prior to drug administration is a biomarker for IC50 drug sensitivity following drug administration. We further verify and reinforce this proposition through control studies on, PI3K/MTOR signaling pathway inhibitors, a drug category that does not target MRPs, and through assignment of dummy targets to MRP inhibiting drugs and investigating the variation in NetBiTE accuracy.
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Lim JT, Tan YQ, Valeri L, Lee J, Geok PP, Chia SE, Ong CN, Seow WJ. Association between serum heavy metals and prostate cancer risk - A multiple metal analysis. ENVIRONMENT INTERNATIONAL 2019; 132:105109. [PMID: 31491608 DOI: 10.1016/j.envint.2019.105109] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 07/30/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Prostate cancer is one of the most prevalent cancers in men. Exposure to heavy metals and their association with prostate cancer risk has been studied extensively, but combined effects remain largely inconclusive. OBJECTIVES To elucidate the association between serum concentrations of heavy metals and prostate cancer risk. METHODS Inductively coupled plasma mass spectrometry (ICP-MS) was used to determine the concentrations of a panel of 10 heavy metals (Mn, Cu, Zn, As, Se, Sb, Co, Cu, Cd and Pb) in serum samples of 141 cases and 114 controls in the Singapore Prostate Cancer Study. Linear probit regression models were used to estimate risk differences (RDs) and 95% confidence intervals (CIs) for the associations between log-centered serum metal concentrations and prostate cancer risk with adjustment for potential confounders. Bayesian kernel machine regression (BKMR) models were used to account for nonlinear, interactive, and joint metal effects. RESULTS Using probit regression, four heavy metals (As, Zn, Mn, Sb) were significantly and positively associated with prostate cancer risk in the unadjusted models. Using BKMR analysis, both As and Zn had positive risk differences on prostate cancer risk when all other metals were held fixed at the 25th and 50th percentiles (RD, 25th percentile: As: 0.15, Zn: 0.19, RD, 50th percentile: As: 0.45, Zn: 0.37). In addition, the overall mixture risk difference was positive and the 95% credible intervals did not include 0 when all metals in the mixture were jointly above their 55th percentile, as compared to when all metals were below their median values. CONCLUSIONS In summary, we found positive associations between the serum levels of As and Zn and prostate cancer risk on the risk difference scale using BKMR models. The overall mixture effect was also associated with increased prostate cancer risk. Future studies are warranted to validate these findings in prospective studies.
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Affiliation(s)
- Jue Tao Lim
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore
| | - Yue Qian Tan
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore
| | - Linda Valeri
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Jingyi Lee
- NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Per Poh Geok
- NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Sin Eng Chia
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore
| | - Choon Nam Ong
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore; NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Wei Jie Seow
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore.
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Wu H, Sun T, Bi R. Inhibition of insulin-like growth factor 1 signaling synergistically enhances the tumor suppressive role of triptolide in triple-negative breast cancer cells. Oncol Lett 2019; 18:822-829. [PMID: 31289559 DOI: 10.3892/ol.2019.10356] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 04/04/2019] [Indexed: 12/31/2022] Open
Abstract
Triptolide (TPL) is an active extract from a Chinese herb, which has been used for centuries in China. TPL exhibits numerous bioactivities and pharmacological effects, including antitumor, anti-inflammatory and immunosuppressive activities. However, previous studies have further revealed a multi-target toxicity of TPL, including reproductive toxicity, hepatotoxicity and renal cytotoxicity. To validate the clinical benefit and reduce the risk of TPL application, studies have investigated the combination of TPL with other reagents to allow lower doses and decrease toxicity. The present study reported that TPL and the insulin-like growth factor-1 receptor (IGF1R) inhibitor AG1024synergistically inhibited cell proliferation and induced apoptosis in triple-negative breast cancer cells. Overexpression of B-cell lymphoma 2 partially reversed the TPL and AG1024-induced increase in apoptosis. A similar synergistic effect was observed with a combination of AG1024 and cisplatin, a DNA damage inducer, in MDA-MB-231 cells. These results suggested that inhibition of IGF1R may sensitize triple-negative breast cancer cells to DNA damage inducers. Using publicly available data from The Cancer Genome Atlas, an amplification and gain of copy number of IGF1R was observed in 38% of triple-negative breast tumors (n=82), 26% of estrogen receptor (ER)-negative tumors (n=174) and 10% of ER-positive tumors (n=594). Similarly, a higher alteration frequency of IGF1R was identified in basal-like breast tumors compared with luminal A/B-like breast tumors. Overexpressed proteins associated with these alterations were revealed to be significantly enriched in multiple oncogenic signaling pathways, key transcription factor networks and DNA repair pathways. In summary, the present study suggested that inhibition of IGFR signaling and induction of DNA damage may exhibit synergistic effects for the treatment of triple-negative and ER-negative breast cancer.
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Affiliation(s)
- Hongyan Wu
- Department of Pharmacy, Tangshan People's Hospital, Tangshan, Hebei 063001, P.R. China
| | - Ting Sun
- Department of Clinical Pharmacology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Rui Bi
- Department of Pharmacy, Tangshan People's Hospital, Tangshan, Hebei 063001, P.R. China
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Wang F, Diao XY, Zhang X, Shao Q, Feng YF, An X, Wang HY. Identification of genetic alterations associated with primary resistance to EGFR-TKIs in advanced non-small-cell lung cancer patients with EGFR sensitive mutations. Cancer Commun (Lond) 2019; 39:7. [PMID: 30823937 PMCID: PMC6397445 DOI: 10.1186/s40880-019-0354-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 02/26/2019] [Indexed: 01/21/2023] Open
Abstract
Background Identification of activated epidermal growth factor receptor (EGFR) mutations and application of EGFR-tyrosine kinase inhibitors (EGFR-TKIs) have greatly changed the therapeutic strategies of non-small-cell lung cancer (NSCLC). However, the long-term efficacy of EGFR-TKI therapy is limited due to the development of drug resistance. The aim of this study was to investigate the correlation between the aberrant alterations of 8 driver genes and the primary resistance to EGFR-TKIs in advanced NSCLC patients with activated EGFR mutations. Methods We retrospectively reviewed the clinical data from 416 patients with stage III/IV or recurrent NSCLC who received an initial EGFR-TKI treatment, from April 2004 and March 2011, at the Sun Yat-sen University Cancer Center. Several genetic alterations associated with the efficacy of EGFR-TKIs, including the alterations in BIM, ALK, KRAS, PIK3CA, PTEN, MET, IGF1R, and ROS1, were detected by the routine clinical technologies. The progression-free survival (PFS) and overall survival (OS) were compared between different groups using Kaplan–Meier survival analysis with the log-rank test. A Cox regression model was used to estimate multivariable-adjusted hazard ratios (HRs) and their 95% confidence intervals (95% CIs) associated with the PFS and OS. Results Among the investigated patients, 169 NSCLC patients harbored EGFR-sensitive mutations. EGFR-mutant patients having PTEN deletion had a shorter PFS and OS than those with intact PTEN (P = 0.003 for PFS, and P = 0.034 for OS). In the combined molecular analysis of EGFR signaling pathway and resistance genes, we found that EGFR-mutant patients coexisted with aberrant alterations in EGFR signaling pathway and those having resistant genes had a statistically poorer PFS than those without such alterations (P < 0.001). A Cox proportional regression model determined that PTEN deletion (HR = 4.29,95% CI = 1.72–10.70) and low PTEN expression (HR = 1.96, 95% CI = 1.22–3.13), MET FISH + (HR = 2.83,95% CI = 1.37–5.86) were independent predictors for PFS in patients with EGFR-TKI treatment after adjustment for multiple factor. Conclusions We determined that the coexistence of genetic alterations in cancer genes may explain primary resistance to EGFR-TKIs. Electronic supplementary material The online version of this article (10.1186/s40880-019-0354-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fang Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P.R. China. .,Department of Molecular Diagnostics, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, P.R. China.
| | - Xia-Yao Diao
- Department of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, 510120, Guangdong, P.R. China
| | - Xiao Zhang
- Department of Molecular Diagnostics, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, P.R. China
| | - Qiong Shao
- Department of Molecular Diagnostics, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, P.R. China
| | - Yan-Fen Feng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P.R. China.,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P.R. China
| | - Xin An
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P.R. China
| | - Hai-Yun Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P.R. China. .,Department of Molecular Diagnostics, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, P.R. China.
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12
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Martis PC, Dudley AT, Bemrose MA, Gazda HL, Smith BH, Gazda LS. MEF2 plays a significant role in the tumor inhibitory mechanism of encapsulated RENCA cells via EGF receptor signaling in target tumor cells. BMC Cancer 2018; 18:1217. [PMID: 30514247 PMCID: PMC6280513 DOI: 10.1186/s12885-018-5128-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/23/2018] [Indexed: 01/17/2023] Open
Abstract
Background Agarose encapsulated murine renal adenocarcinoma cells (RENCA macrobeads) are currently being investigated in clinical trials as a treatment for therapy-resistant metastatic colorectal cancer. We have previously demonstrated the capacity of RENCA macrobeads to produce diffusible substances that markedly inhibit the proliferation of epithelial-derived tumor cells outside the macrobead environment. This study examined the molecular mechanisms underlying the observed inhibition in targeted tumor cells exposed to RENCA macrobeads. Methods We evaluated changes in transcription factor responses, participating intracellular signaling pathways and the involvement of specific cellular receptors in targeted tumor cells exposed to RENCA macrobeads. Results Factors secreted by RENCA macrobeads significantly up-regulated the activity of the MEF2 transcription factor as well as altered the transcription of MEF2b and MEF2d isoforms in targeted tumor cells. Suppression of individual or multiple MEF2 isoforms in target tumor cells markedly reduced the growth inhibitory effects of RENCA macrobeads. Furthermore, these effects were linked to the activation of the EGF receptor as attenuation of EGFR resulted in a substantial reduction of the cancer cell growth-inhibitory effect. Conclusions Since interruption of the EGFR signaling cascade did not eliminate RENCA macrobead-induced growth control, our data suggests that RENCA macrobeads exert their full growth inhibitory effects through the simultaneous activation of multiple signaling pathways. In contrast to a precision medicine approach targeting single molecular abnormalities, the RENCA macrobead functions as a biological-systems therapy to re-establish regulation in a highly dysfunctional and dysregulated cancer system. Electronic supplementary material The online version of this article (10.1186/s12885-018-5128-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Prithy C Martis
- The Rogosin Institute-Xenia Division, 740 Birch Road, Xenia, OH, 45385, USA.
| | - Atira T Dudley
- The Rogosin Institute-Xenia Division, 740 Birch Road, Xenia, OH, 45385, USA
| | - Melissa A Bemrose
- The Rogosin Institute-Xenia Division, 740 Birch Road, Xenia, OH, 45385, USA
| | - Hunter L Gazda
- The Rogosin Institute-Xenia Division, 740 Birch Road, Xenia, OH, 45385, USA
| | - Barry H Smith
- The Rogosin Institute, New York, NY, 10021, USA.,NewYork-Presbyterian Hospital and Weill Medical College of Cornell University, New York, NY, 10021, USA
| | - Lawrence S Gazda
- The Rogosin Institute-Xenia Division, 740 Birch Road, Xenia, OH, 45385, USA
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13
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Cook MT. Mechanism of metastasis suppression by luteolin in breast cancer. BREAST CANCER-TARGETS AND THERAPY 2018; 10:89-100. [PMID: 29928143 PMCID: PMC6003288 DOI: 10.2147/bctt.s144202] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Metastatic breast cancer is typically an extremely aggressive cancer with poor prognosis. Metastasis requires the orchestration of homeostatic factors and cellular programs, many of which are potential therapeutic targets. Luteolin (2-[3,4-dihydroxyphenyl]-5,7-dihydroxy-4-chromenone), is a naturally occurring flavonoid found in fruits and vegetables that exhibits many anticancer properties. Luteolin obstructs metastasis through both direct and indirect mechanisms. For instance, luteolin may suppress breast cancer invasion by acting as an antiangiogenic therapeutic inhibiting VEGF production and its receptor’s activity. Furthermore, luteolin decreases epithelial–mesenchymal transition markers and metastatic proclivity. Luteolin also acts as an antiproliferative by suppressing receptor tyrosine-kinase activity and apoptosis, both of which could prevent incipient colonization of breast cancer. Many of these antimetastatic characteristics accredited to luteolin are likely functionally related. For instance, the PI3K/Akt pathway, which is impeded by luteolin, has several downstream programs involved in increased proliferation, survival, and metastatic potential in breast cancer. In this review, luteolin’s ability to ameliorate breast cancer is summarized. The paper also offers insight into the molecular mechanisms by which luteolin may suppress breast cancer metastasis.
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Affiliation(s)
- Matthew T Cook
- Department of Biology, Washburn University, Topeka, KS, USA
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14
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Nimmanon T, Ziliotto S, Morris S, Flanagan L, Taylor KM. Phosphorylation of zinc channel ZIP7 drives MAPK, PI3K and mTOR growth and proliferation signalling. Metallomics 2018; 9:471-481. [PMID: 28205653 PMCID: PMC5451890 DOI: 10.1039/c6mt00286b] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Zinc is an essential trace element participating in diverse biological processes. Cellular zinc levels are strictly controlled by two families of transport proteins: ZIP channels (SLC39A) and ZnT transporters (SLC30A). ZIP channels increase cytosolic zinc levels by importing zinc into cells or releasing zinc from intracellular stores such as the ER. Among all the 14 human members of the ZIP family, ZIP7 is a gatekeeper of zinc release from intracellular stores, requiring post-translational activation by phosphorylation on residues S275 and S276, resulting in activation of multiple downstream pathways. Employing site-directed mutagenesis, we investigated the importance of these individual serine residues as well as other predicted phosphorylation sites on ZIP7, showing that all four sites are required for maximal ZIP7 activation. Using phosphor-protein arrays, we also discovered the major signalling pathways that were activated as a direct result of ZIP7-mediated zinc release from intracellular stores. These data reveal the role of ZIP7-mediated zinc release from intracellular stores in driving major pathways, such as MAPK, mTOR and PI3K-AKT, involved in providing cell survival and proliferation and often over activated in cancer.
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Affiliation(s)
- T Nimmanon
- Breast Cancer Molecular Pharmacology Group, School of Pharmacy and Pharmaceutical Sciences, Redwood Building, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK.
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15
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Yong KJ, Li A, Ou WB, Hong CKY, Zhao W, Wang F, Tatetsu H, Yan B, Qi L, Fletcher JA, Yang H, Soo R, Tenen DG, Chai L. Targeting SALL4 by entinostat in lung cancer. Oncotarget 2018; 7:75425-75440. [PMID: 27705911 PMCID: PMC5342750 DOI: 10.18632/oncotarget.12251] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 09/13/2016] [Indexed: 11/26/2022] Open
Abstract
The overall survival of lung cancer patients remains dismal despite the availability of targeted therapies. Oncofetal protein SALL4 is a novel cancer target. We herein report that SALL4 was aberrantly expressed in a subset of lung cancer patients with poor survival. SALL4 silencing by RNA interference or SALL4 peptide inhibitor treatment led to impaired lung cancer cell growth. Expression profiling of SALL4-knockdown cells demonstrated that both the EGFR and IGF1R signaling pathways were affected. Connectivity Map analysis revealed the HDAC inhibitor entinostat as a potential drug in treating SALL4-expressing cancers, and this was confirmed in 17 lung cancer cell lines. In summary, we report for the first time that entinostat can target SALL4-positive lung cancer. This lays the foundation for future clinical studies evaluating the therapeutic efficacy of entinostat in SALL4-positive lung cancer patients.
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Affiliation(s)
- Kol Jia Yong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Ailing Li
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Wen-Bin Ou
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA.,Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - Clarice Kit Yee Hong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Wenxiu Zhao
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Fei Wang
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Hiro Tatetsu
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Benedict Yan
- Department of Laboratory Medicine, National University Hospital, National University Health System, Singapore
| | - Lihua Qi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Jonathan A Fletcher
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Henry Yang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Ross Soo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Daniel G Tenen
- Cancer Science Institute of Singapore, National University of Singapore, Singapore.,Harvard Stem Cell Institute, Boston, MA, USA
| | - Li Chai
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
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16
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Zhao B, Wang L, Qiu H, Zhang M, Sun L, Peng P, Yu Q, Yuan X. Mechanisms of resistance to anti-EGFR therapy in colorectal cancer. Oncotarget 2018; 8:3980-4000. [PMID: 28002810 PMCID: PMC5354808 DOI: 10.18632/oncotarget.14012] [Citation(s) in RCA: 185] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 12/05/2016] [Indexed: 02/06/2023] Open
Abstract
Targeting the epidermal growth factor receptor (EGFR) either alone or in combination with chemotherapy is effective for patients with RAS wild type metastatic colorectal cancer (mCRC). However, only a small percentage of mCRC patients are sensitive to anti-EGFR therapy and even the best cases finally become refractory to this therapy. It has become apparent that the RAS mutations correlate with resistance to anti-EGFR therapy. However, these resistance mechanisms only account for nearly 35% to 50% of nonresponsive patients, suggesting that there might be additional mechanisms. In fact, several novel pathways leading to escape from anti-EGFR therapy have been reported in recent years. In this review, we provide an overview of known and novel mechanisms that contribute to both primary and acquired anti-EGFR therapy resistance, and enlist possible treatment strategies to overcome or reverse this resistance.
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Affiliation(s)
- Ben Zhao
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Lu Wang
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Hong Qiu
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Mingsheng Zhang
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Li Sun
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Ping Peng
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Qianqian Yu
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xianglin Yuan
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
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17
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Vishwamitra D, George SK, Shi P, Kaseb AO, Amin HM. Type I insulin-like growth factor receptor signaling in hematological malignancies. Oncotarget 2018; 8:1814-1844. [PMID: 27661006 PMCID: PMC5352101 DOI: 10.18632/oncotarget.12123] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 09/12/2016] [Indexed: 12/19/2022] Open
Abstract
The insulin-like growth factor (IGF) signaling system plays key roles in the establishment and progression of different types of cancer. In agreement with this idea, substantial evidence has shown that the type I IGF receptor (IGF-IR) and its primary ligand IGF-I are important for maintaining the survival of malignant cells of hematopoietic origin. In this review, we discuss current understanding of the role of IGF-IR signaling in cancer with a focus on the hematological neoplasms. We also address the emergence of IGF-IR as a potential therapeutic target for the treatment of different types of cancer including plasma cell myeloma, leukemia, and lymphoma.
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Affiliation(s)
- Deeksha Vishwamitra
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Suraj Konnath George
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ping Shi
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Ahmed O Kaseb
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hesham M Amin
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,The University of Texas Graduate School of Biomedical Sciences, Houston, TX, USA
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18
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Haxho F, Neufeld RJ, Szewczuk MR. Neuraminidase-1: a novel therapeutic target in multistage tumorigenesis. Oncotarget 2018; 7:40860-40881. [PMID: 27029067 PMCID: PMC5130050 DOI: 10.18632/oncotarget.8396] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 03/18/2016] [Indexed: 12/15/2022] Open
Abstract
Several of the growth factors and their receptor tyrosine kinases (RTK) such as epidermal growth factor (EGF), platelet-derived growth factor (PDGF), fibroblast growth factor (FGF), vascular endothelial growth factor (VEGF), nerve growth factor (NGF) and insulin are promising candidate targets for cancer therapy. Indeed, tyrosine kinase inhibitors (TKI) have been developed to target these growth factors and their receptors, and have demonstrated dramatic initial responses in cancer therapy. Yet, most patients ultimately develop TKI drug resistance and relapse. It is essential in the clinical setting that the targeted therapies are to circumvent multistage tumorigenesis, including genetic mutations at the different growth factor receptors, tumor neovascularization, chemoresistance of tumors, immune-mediated tumorigenesis and the development of tissue invasion and metastasis. Here, we identify a novel receptor signaling platform linked to EGF, NGF, insulin and TOLL-like receptor (TLR) activations, all of which are known to play major roles in tumorigenesis. The importance of these findings signify an innovative and promising entirely new targeted therapy for cancer. The role of mammalian neuraminidase-1 (Neu1) in complex with matrix metalloproteinase-9 and G protein-coupled receptor tethered to RTKs and TLRs is identified as a major target in multistage tumorigenesis. Evidence exposing the link connecting growth factor-binding and immune-mediated tumorigenesis to this novel receptor-signaling paradigm will be reviewed in its current relationship to cancer.
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Affiliation(s)
- Fiona Haxho
- Departments of Biomedical and Molecular Sciences, Kingston, Ontario, Canada
| | - Ronald J Neufeld
- Department of Chemical Engineering, Queen's University, Kingston, Ontario, Canada
| | - Myron R Szewczuk
- Departments of Biomedical and Molecular Sciences, Kingston, Ontario, Canada
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19
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Wessels I, Maywald M, Rink L. Zinc as a Gatekeeper of Immune Function. Nutrients 2017; 9:E1286. [PMID: 29186856 PMCID: PMC5748737 DOI: 10.3390/nu9121286] [Citation(s) in RCA: 349] [Impact Index Per Article: 49.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/20/2017] [Accepted: 11/22/2017] [Indexed: 12/27/2022] Open
Abstract
After the discovery of zinc deficiency in the 1960s, it soon became clear that zinc is essential for the function of the immune system. Zinc ions are involved in regulating intracellular signaling pathways in innate and adaptive immune cells. Zinc homeostasis is largely controlled via the expression and action of zinc "importers" (ZIP 1-14), zinc "exporters" (ZnT 1-10), and zinc-binding proteins. Anti-inflammatory and anti-oxidant properties of zinc have long been documented, however, underlying mechanisms are still not entirely clear. Here, we report molecular mechanisms underlying the development of a pro-inflammatory phenotype during zinc deficiency. Furthermore, we describe links between altered zinc homeostasis and disease development. Consequently, the benefits of zinc supplementation for a malfunctioning immune system become clear. This article will focus on underlying mechanisms responsible for the regulation of cellular signaling by alterations in zinc homeostasis. Effects of fast zinc flux, intermediate "zinc waves", and late homeostatic zinc signals will be discriminated. Description of zinc homeostasis-related effects on the activation of key signaling molecules, as well as on epigenetic modifications, are included to emphasize the role of zinc as a gatekeeper of immune function.
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Affiliation(s)
- Inga Wessels
- Institute of Immunology, Faculty of Medicine, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - Martina Maywald
- Institute of Immunology, Faculty of Medicine, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Germany.
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20
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Davidson MA, Shanks EJ. 3q26-29 Amplification in head and neck squamous cell carcinoma: a review of established and prospective oncogenes. FEBS J 2017; 284:2705-2731. [PMID: 28317270 DOI: 10.1111/febs.14061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 02/23/2017] [Accepted: 03/15/2017] [Indexed: 12/22/2022]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is significantly underrepresented in worldwide cancer research, yet survival rates for the disease have remained static for over 50 years. Distant metastasis is often present at the time of diagnosis, and is the primary cause of death in cancer patients. In the absence of routine effective targeted therapies, the standard of care treatment remains chemoradiation in combination with (often disfiguring) surgery. A defining characteristic of HNSCC is the amplification of a region of chromosome 3 (3q26-29), which is consistently associated with poorer patient outcome. This review provides an overview of the role the 3q26-29 region plays in HNSCC, in terms of both known and as yet undiscovered processes, which may have potential clinical relevance.
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21
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Caromile LA, Dortche K, Rahman MM, Grant CL, Stoddard C, Ferrer FA, Shapiro LH. PSMA redirects cell survival signaling from the MAPK to the PI3K-AKT pathways to promote the progression of prostate cancer. Sci Signal 2017; 10:10/470/eaag3326. [PMID: 28292957 DOI: 10.1126/scisignal.aag3326] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Increased abundance of the prostate-specific membrane antigen (PSMA) on prostate epithelium is a hallmark of advanced metastatic prostate cancer (PCa) and correlates negatively with prognosis. However, direct evidence that PSMA functionally contributes to PCa progression remains elusive. We generated mice bearing PSMA-positive or PSMA-negative PCa by crossing PSMA-deficient mice with transgenic PCa (TRAMP) models, enabling direct assessment of PCa incidence and progression in the presence or absence of PSMA. Compared with PSMA-positive tumors, PSMA-negative tumors were smaller, lower-grade, and more apoptotic with fewer blood vessels, consistent with the recognized proangiogenic function of PSMA. Relative to PSMA-positive tumors, tumors lacking PSMA had less than half the abundance of type 1 insulin-like growth factor receptor (IGF-1R), less activity in the survival pathway mediated by PI3K-AKT signaling, and more activity in the proliferative pathway mediated by MAPK-ERK1/2 signaling. Biochemically, PSMA interacted with the scaffolding protein RACK1, disrupting signaling between the β1 integrin and IGF-1R complex to the MAPK pathway, enabling activation of the AKT pathway instead. Manipulation of PSMA abundance in PCa cell lines recapitulated this signaling pathway switch. Analysis of published databases indicated that IGF-1R abundance, cell proliferation, and expression of transcripts for antiapoptotic markers positively correlated with PSMA abundance in patients, suggesting that this switch may be relevant to human PCa. Our findings suggest that increase in PSMA in prostate tumors contributes to progression by altering normal signal transduction pathways to drive PCa progression and that enhanced signaling through the IGF-1R/β1 integrin axis may occur in other tumors.
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Affiliation(s)
- Leslie Ann Caromile
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Kristina Dortche
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - M Mamunur Rahman
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Christina L Grant
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Christopher Stoddard
- Department of Genetics and Developmental Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Fernando A Ferrer
- Department of Urology, New York Medical College, Valhalla, NY 10595, USA
| | - Linda H Shapiro
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030, USA.
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22
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Zhai Y, Zhang Y, Nan K, Liang X. Reduced expression levels of PTEN are associated with decreased sensitivity of HCC827 cells to icotinib. Oncol Lett 2017; 13:3233-3238. [PMID: 28521430 DOI: 10.3892/ol.2017.5829] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/09/2016] [Indexed: 12/18/2022] Open
Abstract
The clinical resistance of non-small cell lung cancer (NSCLC) to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) has been linked to EGFR T790M resistance mutations or MET amplifications. Additional mechanisms underlying EGFR-TKI drug resistance remain unclear. The present study demonstrated that icotinib significantly inhibited the proliferation and increased the apoptosis rate of HCC827 cells; the cellular mRNA and protein expression levels of phosphatase and tensin homolog (PTEN) were also significantly downregulated. To investigate the effect of PTEN expression levels on the sensitivity of HCC827 cells to icotinib, PTEN expression was silenced using a PTEN-specific small interfering RNA. The current study identified that the downregulation of PTEN expression levels may promote cellular proliferation in addition to decreasing the apoptosis of HCC827 cells, and may reduce the sensitivity of HCC827 cells to icotinib. These results suggested that reduced PTEN expression levels were associated with the decreased sensitivity of HCC827 cells to icotinib. Furthermore, PTEN expression levels may be a useful marker for predicting icotinib resistance and elucidating the resistance mechanisms underlying EGFR-mutated NSCLC.
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Affiliation(s)
- Yang Zhai
- Department of Oncology, Tumor Hospital of Shaanxi Province, Xi'an, Shaanxi 710061, P.R. China
| | - Yanjun Zhang
- Department of Oncology, Tumor Hospital of Shaanxi Province, Xi'an, Shaanxi 710061, P.R. China
| | - Kejun Nan
- Department of Oncology, First Affiliated Hospital, Xi'an Jiaotong University Medical College, Xi'an, Shaanxi 710061, P.R. China
| | - Xuan Liang
- Department of Oncology, First Affiliated Hospital, Xi'an Jiaotong University Medical College, Xi'an, Shaanxi 710061, P.R. China
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23
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Chakraborty A, Hatzis C, DiGiovanna MP. Co-targeting the HER and IGF/insulin receptor axis in breast cancer, with triple targeting with endocrine therapy for hormone-sensitive disease. Breast Cancer Res Treat 2017; 163:37-50. [PMID: 28236033 DOI: 10.1007/s10549-017-4169-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 02/17/2017] [Indexed: 01/22/2023]
Abstract
PURPOSE Interactions between HER2, estrogen receptor (ER), and insulin-like growth factor I receptor (IGF1R) are implicated in resistance to monotherapies targeting these receptors. We have previously shown in pre-clinical studies synergistic anti-tumor effects for co-targeting each pairwise combination of HER2, IGF1R, and ER. Strikingly, synergy for HER2/IGF1R targeting occurred not only in a HER2+ model, but also in a HER2-normal model. The purpose of the current study was therefore to determine the generalizability of synergistic anti-tumor effects of co-targeting HER2/IGF1R, the anti-tumor activity of triple-targeting HER2/IGF1R/ER in hormone-dependent cell lines, and the effect of using the multi-targeting drugs neratinib (pan-HER) and BMS-754807 (dual IGF1R/insulin receptor). METHODS Proliferation and apoptosis assays were performed in a large panel of cell lines representing varying receptor expression levels. Mechanistic effects were studied using phospho-protein immunoblotting. Analyses of drug interaction effects were performed using linear mixed-effects regression models. RESULTS Enhanced anti-proliferative effects of HER/IGF-insulin co-targeting were seen in most, though not all, cell lines, including HER2-normal lines. For ER+ lines, triple targeting with inclusion of anti-estrogen generally resulted in the greatest anti-tumor effects. Double or triple targeting generally resulted in marked increases in apoptosis in the sensitive lines. Mechanistic studies demonstrated that the synergy between drugs was correlated with maximal inhibition of Akt and ERK pathway signaling. CONCLUSIONS Dual HER/IGF-insulin targeting, and triple targeting with inclusion of anti-estrogen drugs, shows striking anti-tumor activity across breast cancer types, and drugs with broader receptor specificity may be more effective than single receptor selective drugs, particularly for ER- cells.
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Affiliation(s)
- Ashok Chakraborty
- Section of Medical Oncology, Departments of Internal Medicine, Yale Cancer Center, Smilow Cancer Hospital, Yale University School of Medicine, 300 George Street, Suite 120, New Haven, CT, 06510, USA
| | - Christos Hatzis
- Section of Medical Oncology, Departments of Internal Medicine, Yale Cancer Center, Smilow Cancer Hospital, Yale University School of Medicine, 300 George Street, Suite 120, New Haven, CT, 06510, USA
| | - Michael P DiGiovanna
- Section of Medical Oncology, Departments of Internal Medicine, Yale Cancer Center, Smilow Cancer Hospital, Yale University School of Medicine, 300 George Street, Suite 120, New Haven, CT, 06510, USA.
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Leighl NB, Rizvi NA, de Lima LG, Arpornwirat W, Rudin CM, Chiappori AA, Ahn MJ, Chow LQM, Bazhenova L, Dechaphunkul A, Sunpaweravong P, Eaton K, Chen J, Medley S, Poondru S, Singh M, Steinberg J, Juergens RA, Gadgeel SM. Phase 2 Study of Erlotinib in Combination With Linsitinib (OSI-906) or Placebo in Chemotherapy-Naive Patients With Non-Small-Cell Lung Cancer and Activating Epidermal Growth Factor Receptor Mutations. Clin Lung Cancer 2017; 18:34-42.e2. [PMID: 27686971 PMCID: PMC5474312 DOI: 10.1016/j.cllc.2016.07.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/18/2016] [Accepted: 07/29/2016] [Indexed: 12/23/2022]
Abstract
INTRODUCTION First-line epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor treatment of advanced non-small-cell lung cancer with EGFR-activating mutations improves outcomes compared with chemotherapy, but resistance develops in most patients. Compensatory signaling through type 1 insulin-like growth factor 1 receptor (IGF-1R) may contribute to resistance; dual blockade of IGF-1R and EGFR may improve outcomes. PATIENTS AND METHODS We performed a randomized, double-blind, placebo-controlled phase II study of linsitinib, a dual IGF-1R and insulin receptor tyrosine kinase inhibitor, plus erlotinib versus placebo plus erlotinib in chemotherapy-naive patients with EGFR-mutation positive, advanced non-small-cell lung cancer. Patients received linsitinib 150 mg twice daily or placebo plus erlotinib 150 mg once daily on continuous 21-day cycles. The primary end point was progression-free survival. RESULTS After randomization of 88 patients (44 each arm), the trial was unblinded early owing to inferiority in the linsitinib arm. The median progression-free survival for the linsitinib versus the placebo group was 8.4 months versus 12.4 months (hazard ratio, 1.37; P = .29). Overall response rate (47.7% vs. 75.0%; P = .02) and disease control rate (77.3% vs. 95.5%; P = .03) were also inferior. Whereas most adverse events were ≤ grade 2, linsitinib plus erlotinib was associated with increased adverse events that led to decreased erlotinib exposure (median days, 228 vs. 305). No drug-drug interaction was suggested by pharmacokinetic and pharmacodynamic results. CONCLUSION Adding linsitinib to erlotinib resulted in inferior outcomes compared with erlotinib alone. Further understanding of the signaling pathways and a biomarker that can predict efficacy is needed prior to further clinical development of IGF-1R inhibitors in lung cancer.
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Affiliation(s)
- Natasha B Leighl
- Cancer Clinical Research Unit, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Naiyer A Rizvi
- Department of Hematology and Oncology, Columbia University Medical Center, New York, NY
| | - Lopes Gilberto de Lima
- Oncoclinicas Group, Hcor Onco, Sao Paulo, SP, Brazil; Department of Oncology, School of Medicine, Johns Hopkins University, Baltimore, MD
| | | | | | | | - Myung-Ju Ahn
- Department of Hematology and Oncology, Sungkyunkwan University, Seoul, South Korea
| | | | - Lyudmila Bazhenova
- Department of Clinical Oncology, School of Medicine, UC San Diego Moores Cancer Center, San Diego, CA
| | - Arunee Dechaphunkul
- Departments of Pathology, Hematology, and Surgery, Prince of Songkla University, Songkhla, Thailand
| | | | - Keith Eaton
- Prince of Songkla University, Songkhla, Thailand; Medical Oncology at University of Washington School of Medicine, Seattle Cancer Care Alliance, Seattle, WA
| | | | | | | | | | | | - Rosalyn A Juergens
- Juravinski Cancer Centre, Department of Oncology, McMaster University, Hamilton, ON, Canada.
| | - Shirish M Gadgeel
- Karmanos Cancer Institute, Wayne State University, Detroit, MI; Hematology-Oncology, Wayne State University, Detroit, MI
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25
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Erdem C, Nagle AM, Casa AJ, Litzenburger BC, Wang YF, Taylor DL, Lee AV, Lezon TR. Proteomic Screening and Lasso Regression Reveal Differential Signaling in Insulin and Insulin-like Growth Factor I (IGF1) Pathways. Mol Cell Proteomics 2016; 15:3045-57. [PMID: 27364358 PMCID: PMC5013316 DOI: 10.1074/mcp.m115.057729] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 06/23/2016] [Indexed: 01/22/2023] Open
Abstract
Insulin and insulin-like growth factor I (IGF1) influence cancer risk and progression through poorly understood mechanisms. To better understand the roles of insulin and IGF1 signaling in breast cancer, we combined proteomic screening with computational network inference to uncover differences in IGF1 and insulin induced signaling. Using reverse phase protein array, we measured the levels of 134 proteins in 21 breast cancer cell lines stimulated with IGF1 or insulin for up to 48 h. We then constructed directed protein expression networks using three separate methods: (i) lasso regression, (ii) conventional matrix inversion, and (iii) entropy maximization. These networks, named here as the time translation models, were analyzed and the inferred interactions were ranked by differential magnitude to identify pathway differences. The two top candidates, chosen for experimental validation, were shown to regulate IGF1/insulin induced phosphorylation events. First, acetyl-CoA carboxylase (ACC) knock-down was shown to increase the level of mitogen-activated protein kinase (MAPK) phosphorylation. Second, stable knock-down of E-Cadherin increased the phospho-Akt protein levels. Both of the knock-down perturbations incurred phosphorylation responses stronger in IGF1 stimulated cells compared with insulin. Overall, the time-translation modeling coupled to wet-lab experiments has proven to be powerful in inferring differential interactions downstream of IGF1 and insulin signaling, in vitro.
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Affiliation(s)
- Cemal Erdem
- From the ‡Department of Computational & Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania; §University of Pittsburgh Drug Discovery Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Alison M Nagle
- ¶Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania; ‖Women's Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Angelo J Casa
- **Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas
| | - Beate C Litzenburger
- **Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas
| | - Yu-Fen Wang
- **Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas
| | - D Lansing Taylor
- From the ‡Department of Computational & Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania; §University of Pittsburgh Drug Discovery Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Adrian V Lee
- ¶Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania; ‖Women's Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania; ‡‡Department of Human Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Timothy R Lezon
- From the ‡Department of Computational & Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania; §University of Pittsburgh Drug Discovery Institute, University of Pittsburgh, Pittsburgh, Pennsylvania;
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26
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Sanchez-Lopez E, Flashner-Abramson E, Shalapour S, Zhong Z, Taniguchi K, Levitzki A, Karin M. Targeting colorectal cancer via its microenvironment by inhibiting IGF-1 receptor-insulin receptor substrate and STAT3 signaling. Oncogene 2016; 35:2634-44. [PMID: 26364612 PMCID: PMC4791217 DOI: 10.1038/onc.2015.326] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/05/2015] [Accepted: 07/29/2015] [Indexed: 12/11/2022]
Abstract
The tumor microenvironment (TME) exerts critical pro-tumorigenic effects through cytokines and growth factors that support cancer cell proliferation, survival, motility and invasion. Insulin-like growth factor-1 (IGF-1) and signal transducer and activator of transcription 3 (STAT3) stimulate colorectal cancer development and progression via cell autonomous and microenvironmental effects. Using a unique inhibitor, NT157, which targets both IGF-1 receptor (IGF-1R) and STAT3, we show that these pathways regulate many TME functions associated with sporadic colonic tumorigenesis in CPC-APC mice, in which cancer development is driven by loss of the Apc tumor suppressor gene. NT157 causes a substantial reduction in tumor burden by affecting cancer cells, cancer-associated fibroblasts (CAF) and myeloid cells. Decreased cancer cell proliferation and increased apoptosis were accompanied by inhibition of CAF activation and decreased inflammation. Furthermore, NT157 inhibited expression of pro-tumorigenic cytokines, chemokines and growth factors, including IL-6, IL-11 and IL-23 as well as CCL2, CCL5, CXCL7, CXCL5, ICAM1 and TGFβ; decreased cancer cell migratory activity and reduced their proliferation in the liver. NT157 represents a new class of anti-cancer drugs that affect both the malignant cell and its supportive microenvironment.
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Affiliation(s)
- Elsa Sanchez-Lopez
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0723, USA
| | - Efrat Flashner-Abramson
- Unit of Cellular Signaling, Department of Biological Chemistry, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Shabnam Shalapour
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0723, USA
| | - Zhenyu Zhong
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0723, USA
| | - Koji Taniguchi
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0723, USA
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Alexander Levitzki
- Unit of Cellular Signaling, Department of Biological Chemistry, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Michael Karin
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0723, USA
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27
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Shin M, Yang EG, Song HK, Jeon H. Insulin activates EGFR by stimulating its interaction with IGF-1R in low-EGFR-expressing TNBC cells. BMB Rep 2016; 48:342-7. [PMID: 25341922 PMCID: PMC4578621 DOI: 10.5483/bmbrep.2015.48.6.157] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 01/11/2023] Open
Abstract
The expression of epidermal growth factor receptor (EGFR) is an important diagnostic marker for triple-negative breast cancer (TNBC) cells, which lack three hormonal receptors: estrogen and progesterone receptors as well as epidermal growth factor receptor 2. EGFR transactivation can cause drug resistance in many cancers including TNBC, but the mechanism underlying this phenomenon is poorly defined. Here, we demonstrate that insulin treatment induces EGFR activation by stimulating the interaction of EGFR with insulin-like growth factor receptor 1 (IGF-1R) in the MDA-MB-436 TNBC cell line. These cells express low levels of EGFR, while exhibiting high levels of IGF-1R expression and phosphorylation. Low-EGFRexpressing MDA-MB-436 cells show high sensitivity to insulinstimulated cell growth. Therefore, unexpectedly, insulin stimulation induced EGFR transactivation by regulating its interaction with IGF-1R in low-EGFR-expressing TNBC cells.
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Affiliation(s)
- Miyoung Shin
- Division of Life Sciences, Korea University, Seoul 136-701; Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, Korea
| | - Eun Gyeong Yang
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, Korea
| | - Hyun Kyu Song
- Division of Life Sciences, Korea University, Seoul 136-701, Korea
| | - Hyesung Jeon
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, Korea; Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
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28
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Tepper SR, Zuo Z, Khattri A, Heß J, Seiwert TY. Growth factor expression mediates resistance to EGFR inhibitors in head and neck squamous cell carcinomas. Oral Oncol 2016; 56:62-70. [PMID: 27086488 DOI: 10.1016/j.oraloncology.2016.03.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 03/02/2016] [Accepted: 03/12/2016] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Epidermal growth factor receptor (EGFR)-targeted therapy is frequently used in the treatment of advanced head and neck squamous cell carcinoma (HNSCC). However, constitutive or acquired resistance is common and underlying resistance mechanisms remain poorly understood. We investigated the expression levels of growth factors (GF) in tumor-associated stroma and tumor from HNSCC patients and determined the influence of GFs on EGFR inhibitor efficacy in vitro. MATERIALS AND METHODS The Chicago HNC Genomic Cohort (CHGC) was queried for GF and receptor tyrosine kinase (RTK) expression. Viability assays were used to evaluate the effect of EGFR inhibition (gefitinib), GF treatment, or both in HNSCC cell lines. Caspase-based assays were used to measure apoptotic activity. Expression of RTKs was determined and correlated with GF treatment effects. RESULTS Amphiregulin (AREG), transforming growth factor (TGFβ1), insulin like growth factor (IGF1), fibroblast growth factors (FGF1/FGF2) and the corresponding RTKs were highly expressed in 30-50% of HNSCC, and expression was usually concurrent. While EGFR inhibition was markedly efficacious in HNC cell lines (HN5/HN13/H400/SCC61), co-treatment with most GFs increased viability up to 100%. Only TGFβ1 treatment was additive to EGFR inhibition. GFs also reduced apoptotic effects of EGFR inhibition. RTK expression showed strong positive correlation with respective GF treatment effect for IGF1-IGF1R, less strong for HGF-MET/AREG-EGFR and a moderate negative correlation for TGFβ1-TGFBR1/2. CONCLUSION High expression of GFs/RTKs occurs in HNSCC. Co-expression is common. GF expression contributes to EGFR inhibition resistance in our model system, and may be a common mechanism of constitutive or acquired resistance to EGFR inhibition in HNSCC.
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Affiliation(s)
- Susanne R Tepper
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Section Translational and Experimental Head and Neck Oncology, University Hospital Heidelberg, 69120 Heidelberg, Germany.
| | - Zhixiang Zuo
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
| | - Arun Khattri
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
| | - Jochen Heß
- Section Translational and Experimental Head and Neck Oncology, University Hospital Heidelberg, 69120 Heidelberg, Germany; Molecular Mechanisms of Head and Neck Tumors, German Cancer Research Center, 69120 Heidelberg, Germany.
| | - Tanguy Y Seiwert
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
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29
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Schanzer JM, Wartha K, Moessner E, Hosse RJ, Moser S, Croasdale R, Trochanowska H, Shao C, Wang P, Shi L, Weinzierl T, Rieder N, Bacac M, Ries CH, Kettenberger H, Schlothauer T, Friess T, Umana P, Klein C. XGFR*, a novel affinity-matured bispecific antibody targeting IGF-1R and EGFR with combined signaling inhibition and enhanced immune activation for the treatment of pancreatic cancer. MAbs 2016; 8:811-27. [PMID: 26984378 PMCID: PMC4966845 DOI: 10.1080/19420862.2016.1160989] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The epidermal growth factor receptor (EGFR) and the insulin-like growth factor-1 receptor (IGF-1R) play critical roles in tumor growth, providing a strong rationale for the combined inhibition of IGF-1R and EGFR signaling in cancer therapy. We describe the design, affinity maturation, in vitro and in vivo characterization of the bispecific anti-IGF-1R/EGFR antibody XGFR*. XGFR* is based on the bispecific IgG antibody XGFR, which enabled heterodimerization of an IGF-1R binding scFab heavy chain with an EGFR-binding light and heavy chain by the "knobs-into-holes" technology. XGFR* is optimized for monovalent binding of human EGFR and IGF-1R with increased binding affinity for IGF-1R due to affinity maturation and highly improved protein stability to oxidative and thermal stress. It bears an afucosylated Fc-portion for optimal induction of antibody-dependent cell-mediated cytotoxicity (ADCC). Stable Chinese hamster ovary cell clones with production yields of 2-3 g/L were generated, allowing for large scale production of the bispecific antibody. XGFR* potently inhibits EGFR- and IGF-1R-dependent receptor phosphorylation, reduces tumor cell proliferation in cells with heterogeneous levels of IGF-1R and EGFR receptor expression and induces strong ADCC in vitro. A comparison of pancreatic and colorectal cancer lines demonstrated superior responsiveness to XGFR*-mediated signaling and tumor growth inhibition in pancreatic cancers that frequently show a high degree of IGF-1R/EGFR co-expression. XGFR* showed potent anti-tumoral efficacy in the orthotopic MiaPaCa-2 pancreatic xenograft model, resulting in nearly complete tumor growth inhibition with significant number of tumor remissions. In summary, the bispecific anti-IGF-1R/EGFR antibody XGFR* combines potent signaling and tumor growth inhibition with enhanced ADCC induction and represents a clinical development candidate for the treatment of pancreatic cancer.
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Affiliation(s)
- Juergen M Schanzer
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Katharina Wartha
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Ekkehard Moessner
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
| | - Ralf J Hosse
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
| | - Samuel Moser
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
| | - Rebecca Croasdale
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Halina Trochanowska
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
| | - Cuiying Shao
- c Pharma Research and Early Development, Roche Innovation Center Shanghai , Cai Lun Road, Shanghai , China
| | - Peng Wang
- c Pharma Research and Early Development, Roche Innovation Center Shanghai , Cai Lun Road, Shanghai , China
| | - Lei Shi
- c Pharma Research and Early Development, Roche Innovation Center Shanghai , Cai Lun Road, Shanghai , China
| | - Tina Weinzierl
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
| | - Natascha Rieder
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Marina Bacac
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
| | - Carola H Ries
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Hubert Kettenberger
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Tilman Schlothauer
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Thomas Friess
- a Roche Pharma Research and Early Development, Roche Innovation Center Munich , Nonnenwald, Penzberg , Germany
| | - Pablo Umana
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
| | - Christian Klein
- b Roche Pharma Research and Early Development, Roche Innovation Center Zurich , Wagistrasse, Schlieren , Switzerland
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Huang S, Peter Rodemann H, Harari PM. Molecular Targeting of Growth Factor Receptor Signaling in Radiation Oncology. Recent Results Cancer Res 2016; 198:45-87. [PMID: 27318681 DOI: 10.1007/978-3-662-49651-0_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ionizing radiation has been shown to activate and interact with multiple growth factor receptor pathways that can influence tumor response to therapy. Among these receptor interactions, the epidermal growth factor receptor (EGFR) has been the most extensively studied with mature clinical applications during the last decade. The combination of radiation and EGFR-targeting agents using either monoclonal antibody (mAb) or small-molecule tyrosine kinase inhibitor (TKI) offers a promising approach to improve tumor control compared to radiation alone. Several underlying mechanisms have been identified that contribute to improved anti-tumor capacity after combined treatment. These include effects on cell cycle distribution, apoptosis, tumor cell repopulation, DNA damage/repair, and impact on tumor vasculature. However, as with virtually all cancer drugs, patients who initially respond to EGFR-targeted agents may eventually develop resistance and manifest cancer progression. Several potential mechanisms of resistance have been identified including mutations in EGFR and downstream signaling molecules, and activation of alternative member-bound tyrosine kinase receptors that bypass the inhibition of EGFR signaling. Several strategies to overcome the resistance are currently being explored in preclinical and clinical models, including agents that target the EGFR T790 M resistance mutation or target multiple EGFR family members, as well as agents that target other receptor tyrosine kinase and downstream signaling sites. In this chapter, we focus primarily on the interaction of radiation with anti-EGFR therapies to summarize this promising approach and highlight newly developing opportunities.
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Affiliation(s)
- Shyhmin Huang
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue K4/336 CSC, Madison, WI, 53792, USA
- Department of Human Oncology, University of Wisconsin Comprehensive Cancer Center, WIMR 3136, 1111 Highland Ave Madison, Madison, WI, 53705, USA
| | - H Peter Rodemann
- Division of Radiobiology and Molecular Environmental Research, Department of Radiation Oncology, University of Tübingen, Röntgenweg, 72076, Tübingen, Germany
| | - Paul M Harari
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue K4/336 CSC, Madison, WI, 53792, USA.
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31
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Yin W, Kimbrough CW, Gomez-Gutierrez JG, Burns CT, Chuong P, Grizzle WE, McNally LR. Tumor specific liposomes improve detection of pancreatic adenocarcinoma in vivo using optoacoustic tomography. J Nanobiotechnology 2015; 13:90. [PMID: 26627455 PMCID: PMC4665906 DOI: 10.1186/s12951-015-0139-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 10/19/2015] [Indexed: 12/12/2022] Open
Abstract
Background Pancreatic cancer often goes undiagnosed until late stage disease due in part to suboptimal early detection. Our goal was to develop a Syndecan-1 tagged liposome containing fluorescent dye as an improved contrast agent for detection of pancreatic adenocarcinoma in vivo using multispectral optoacoustic tomography. Results The diagnostic capabilities and specificity to pancreatic adenocarcinoma of Syndecan-1 targeted liposomes were evaluated both in vitro and in vivo. Immunocytochemistry showed that liposomes preferentially bound to and released their contents into cells expressing high levels of insulin-like growth factor 1 receptor. We determined that the contents of the liposome were released into the cell as noted by the change in propidium iodide fluorescence from green to red based upon nucleic acid binding. In an orthotopic mouse model, the liposomes preferentially targeted the pancreatic tumor with little off-target binding in the liver and spleen. Peak accumulation of the liposomes in the tumor occurred at 8 h post-injection. Multispectral optoacoustic tomographic imaging was able to provide high-resolution 3D images of the tumor and liposome location. Ex vivo analysis showed that non-targeted liposomes accumulated in the liver, suggesting that specificity of the liposomes for pancreatic adenocarcinoma was due to the presence of the Syndecan-1 ligand. Conclusions This study demonstrated that Syndecan-1 liposomes were able to release cargo into IGF1-R expressing tumor cells. The Syndecan-1 liposomes demonstrated tumor specificity in orthotopic pancreatic cancer as observed using multispectral optoacoustic tomography with reduced kidney and liver uptake. By targeting the liposome with Syndecan-1, this nanovehicle has potential as a targeted theranostic nanoparticle for both drug and contrast agent delivery to pancreatic tumors. Electronic supplementary material The online version of this article (doi:10.1186/s12951-015-0139-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wenyuan Yin
- University of Louisville, 505 S Hancock, Louisville, KY, 40202, USA.
| | | | | | | | - Phillip Chuong
- University of Louisville, 505 S Hancock, Louisville, KY, 40202, USA.
| | - William E Grizzle
- University of Alabama Birmingham, ZRB 408, 1720 2nd Avenue South, Birmingham, AL, 35294, USA.
| | - Lacey R McNally
- University of Louisville, 505 S Hancock, Louisville, KY, 40202, USA.
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32
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Herkert B, Kauffmann A, Mollé S, Schnell C, Ferrat T, Voshol H, Juengert J, Erasimus H, Marszalek G, Kazic-Legueux M, Billy E, Ruddy D, Stump M, Guthy D, Ristov M, Calkins K, Maira SM, Sellers WR, Hofmann F, Hall MN, Brachmann SM. Maximizing the Efficacy of MAPK-Targeted Treatment in PTENLOF/BRAFMUT Melanoma through PI3K and IGF1R Inhibition. Cancer Res 2015; 76:390-402. [PMID: 26577700 DOI: 10.1158/0008-5472.can-14-3358] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 10/28/2015] [Indexed: 11/16/2022]
Abstract
The introduction of MAPK pathway inhibitors paved the road for significant advancements in the treatment of BRAF-mutant (BRAF(MUT)) melanoma. However, even BRAF/MEK inhibitor combination therapy has failed to offer a curative treatment option, most likely because these pathways constitute a codependent signaling network. Concomitant PTEN loss of function (PTEN(LOF)) occurs in approximately 40% of BRAF(MUT) melanomas. In this study, we sought to identify the nodes of the PTEN/PI3K pathway that would be amenable to combined therapy with MAPK pathway inhibitors for the treatment of PTEN(LOF)/BRAF(MUT) melanoma. Large-scale compound sensitivity profiling revealed that PTEN(LOF) melanoma cell lines were sensitive to PI3Kβ inhibitors, albeit only partially. An unbiased shRNA screen (7,500 genes and 20 shRNAs/genes) across 11 cell lines in the presence of a PI3Kβ inhibitor identified an adaptive response involving the IGF1R-PI3Kα axis. Combined inhibition of the MAPK pathway, PI3Kβ, and PI3Kα or insulin-like growth factor receptor 1 (IGF1R) synergistically sustained pathway blockade, induced apoptosis, and inhibited tumor growth in PTEN(LOF)/BRAF(MUT) melanoma models. Notably, combined treatment with the IGF1R inhibitor, but not the PI3Kα inhibitor, failed to elevate glucose or insulin signaling. Taken together, our findings provide a strong rationale for testing combinations of panPI3K, PI3Kβ + IGF1R, and MAPK pathway inhibitors in PTEN(LOF)/BRAF(MUT) melanoma patients to achieve maximal response.
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Affiliation(s)
- Barbara Herkert
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Audrey Kauffmann
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Sandra Mollé
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Christian Schnell
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Thomas Ferrat
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Hans Voshol
- NIBR, Analytical Sciences and Imaging, Basel, Switzerland
| | - Janina Juengert
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Hélène Erasimus
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Grégory Marszalek
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Malika Kazic-Legueux
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Eric Billy
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - David Ruddy
- Novartis Pharma, OTM Translational Research, Cambridge, Massachusetts
| | - Mark Stump
- NIBR, Disease Area Oncology, Cambridge, Massachusetts
| | - Daniel Guthy
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Mitko Ristov
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Keith Calkins
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | - Sauveur-Michel Maira
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | | | - Francesco Hofmann
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland
| | | | - Saskia M Brachmann
- Novartis Institutes for Biomedical Research (NIBR), Disease Area Oncology, Basel, Switzerland.
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Barkeer S, Guha N, Hothpet V, Saligrama Adavigowda D, Hegde P, Padmanaban A, Yu LG, Swamy BM, Inamdar SR. Molecular mechanism of anticancer effect of Sclerotium rolfsii lectin in HT29 cells involves differential expression of genes associated with multiple signaling pathways: A microarray analysis. Glycobiology 2015; 25:1375-91. [PMID: 26347523 DOI: 10.1093/glycob/cwv067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 08/17/2015] [Indexed: 12/16/2022] Open
Abstract
Sclerotium rolfsii lectin (SRL) is a lectin isolated from fungus S. rolfsii and has high binding specificity toward the oncofetal Thomsen-Friedenreich carbohydrate antigen (Galβ1-3GalNAc-α-O-Ser/Thr, T or TF), which is expressed in more than 90% of human cancers. Our previous studies have shown that binding of SRL to human colon, breast and ovarian cancer cells induces cell apoptosis in vitro and suppresses tumor growth in vivo. This study investigated the SRL-mediated cell signaling in human colon cancer HT29 cells by mRNA and miRNA microarrays. It was found that SRL treatment results in altered expression of several hundred molecules including mitogen-activated protein kinase (MAPK) and c-JUN-associated, apoptosis-associated and cell cycle and DNA replication-associated signaling molecules. Pathway analysis using GeneSpring 12.6.1 revealed that SRL treatment induces changes of MAPK and c-JUN-associated signaling pathways as early as 2 h while changes of cell cycle, DNA replication and apoptosis pathways were significantly affected only after 24 h. A significant change of cell miRNA expression was also observed after 12 h treatment of the cells with SRL. These changes were further validated by quantitative real time polymerase chain reaction and immunoblotting. This study thus suggests that the presence of SRL affects multiple signaling pathways in cancer cells with early effects on cell proliferation pathways associated with MAPK and c-JUN, followed by miRNA-associated cell activity and apoptosis. This provides insight information into the molecular mechanism of the anticancer activity of this fungal lectin.
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Affiliation(s)
- Srikanth Barkeer
- Department of Studies in Biochemistry, Karnatak University, Dharwad 580 003, India
| | - Nilanjan Guha
- Agilent Technologies India Pvt. Ltd, Bangalore 560048, India
| | | | | | - Prajna Hegde
- Department of Studies in Biochemistry, Karnatak University, Dharwad 580 003, India
| | | | - Lu-Gang Yu
- Department of Gastroenterology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK
| | - Bale M Swamy
- Department of Studies in Biochemistry, Karnatak University, Dharwad 580 003, India Department of Gastroenterology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK
| | - Shashikala R Inamdar
- Department of Studies in Biochemistry, Karnatak University, Dharwad 580 003, India Department of Gastroenterology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK
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Gradishar WJ, Yardley DA, Layman R, Sparano JA, Chuang E, Northfelt DW, Schwartz GN, Youssoufian H, Tang S, Novosiadly R, Forest A, Nguyen TS, Cosaert J, Grebennik D, Haluska P. Clinical and Translational Results of a Phase II, Randomized Trial of an Anti-IGF-1R (Cixutumumab) in Women with Breast Cancer That Progressed on Endocrine Therapy. Clin Cancer Res 2015; 22:301-9. [PMID: 26324738 DOI: 10.1158/1078-0432.ccr-15-0588] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 08/04/2015] [Indexed: 12/18/2022]
Abstract
PURPOSE This phase II trial evaluated the efficacy and safety of cixutumumab, a human anti-insulin-like growth factor receptor 1 (IGF-1R) monoclonal IgG1 antibody, and explored potential biomarkers in postmenopausal women with hormone receptor-positive breast cancer. EXPERIMENTAL DESIGN Patients with hormone receptor-positive breast cancer that progressed on antiestrogen therapy received (2:1 randomization) cixutumumab 10 mg/kg and the same antiestrogen (arm A) or cixutumumab alone (arm B) every 2 weeks (q2w). Primary endpoint was progression-free survival (PFS); secondary endpoints included overall survival (OS) and safety. Correlative analyses of IGF-1R, total insulin receptor (IR), and IR isoforms A (IR-A) and B (IR-B) expression in tumor tissue were explored. RESULTS Ninety-three patients were randomized (arm A, n = 62; arm B, n = 31). Median PFS was 2.0 and 3.1 months for arm A and arm B, respectively. Secondary efficacy measures were similar between the arms. Overall, cixutumumab was well tolerated. IGF-1R expression was not associated with clinical outcomes. Regardless of the treatment, lower IR-A, IR-B, and total IR mRNA expression in tumor tissue was significantly associated with longer PFS [IR-A: HR, 2.62 (P = 0.0062); IR-B: HR, 2.21 (P = 0.0202); and total IR: HR, 2.18 (P = 0.0230)] and OS [IR-A: HR, 2.94 (P = 0.0156); IR-B: HR, 2.69 (P = 0.0245); and total IR: HR, 2.72 (P = 0.0231)]. CONCLUSIONS Cixutumumab (10 mg/kg) with or without antiestrogen q2w had an acceptable safety profile, but no significant clinical efficacy. Patients with low total IR, IR-A, and IR-B mRNA expression levels had significantly longer PFS and OS, independent of the treatment. The prognostic or predictive value of IR as a biomarker for IGF-1R-targeted therapies requires further validation.
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Affiliation(s)
| | - Denise A Yardley
- Sarah Cannon Research Institute, Nashville, Tennessee. Tennessee Oncology, PLLC, Nashville, Tennessee
| | - Rachel Layman
- Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | | | - Ellen Chuang
- Weill Cornell Medical College, New York, New York
| | | | | | | | - Shande Tang
- Eli Lilly and Company, Bridgewater, New Jersey
| | | | | | | | - Jan Cosaert
- Eli Lilly and Company, Bridgewater, New Jersey
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Mirone G, Shukla A, Marfe G. Signaling mechanisms of resistance to EGFR- and Anti-Angiogenic Inhibitors cancer. Crit Rev Oncol Hematol 2015; 97:85-95. [PMID: 26364891 DOI: 10.1016/j.critrevonc.2015.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 06/16/2015] [Accepted: 08/05/2015] [Indexed: 12/14/2022] Open
Abstract
Colorectal cancer is among four most common malignancies and the second leading cause of cancer death in the western world. Epidermal Growth Factor Receptor (EGFR) and Vascular Endothelial Growth Factor (VEGF) are often overexpressed in colorectal cancer and are associated with inferior outcomes. More recently, further improvements in survival have occurred due to the use of novel targeted therapies such EGFR Tyrosine Kinase Inibitors (EGFR-TKIs), EGFR monoclonal antibodies (EGFR-mAb), and VEGF antibodies. Despite the initial clinical efficacy of these inhibitors in such cancer, resistance invariably develops, typically within 1 to 2 years. Over the past several years, multiple molecular mechanisms of resistance have been identified, and some common themes have emerged. One is the development of resistance mutations in the drug target and another it is activation of alternative signaling of key downstream pathways despite sustained inhibition of the original drug target. In this mini-review, we summarize the concepts underlying EGFR- and VEGF-mediated resistance, the specific examples known to date, and the challenges of applying this knowledge to develop improved therapeutic strategies to prevent or overcome resistance.
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Affiliation(s)
- Giovanna Mirone
- Department of Medical Oncology B, Regina Elena National Cancer Institute, via Elio Chianesi 53, Rome 00144, Italy.
| | - Arvind Shukla
- School of Biotechnology and Bioinformatics, D.Y. Patil University, Plot No.50, Sector- 15, C.B.D. Belapur, Navi Mumbai, 400614, Maharastra, India
| | - Gabriella Marfe
- Department of Biochemistry and Biophysics, Second University of Naples, via De Crecchio 7, Naples 80138, Italy
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Expression of CD117, DOG-1, and IGF-1R in gastrointestinal stromal tumours - an analysis of 70 cases from 2004 to 2010. GASTROENTEROLOGY REVIEW 2015; 11:115-22. [PMID: 27350839 PMCID: PMC4916232 DOI: 10.5114/pg.2015.52587] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/08/2015] [Indexed: 12/12/2022]
Abstract
Introduction Determination of the type of mutations in gastrointestinal stromal tumours (GIST) plays a major role in assessing the risk of progression of the disease, and also allows determination of the clinical management and treatment. More accurate GIST diagnosis is possible by using simultaneously various types of antibodies to immunohistochemistry methods in routine procedures. Aim To evaluate the expression of CD117, DOG-1, and IGF-1R in patients with gastrointestinal stromal tumours, and analysis of the impact of the examined protein expression on patient survival with emphasis on specific recognition and prognostication of these tumours. Material and methods The protein expression was analyzed in 70 patients who had undergone surgical treatment for mesenchymal tumours of the gastrointestinal tract, using the immunohistochemical method. Results Positive expression of CD117, DOG-1, and IGF1R included 95.71%, 88.57% and 11.43% of study GISTs, respectively. Statistical analysis showed positive significant correlation between DOG-1 expression and histological type of tumour (p = 0.024). Analysis of overall survival curves of 70 GIST patients according to expression of CD117, DOG-1, and IGF1R did not show a tendency towards longer survival of patients with positive expression (p > 0.05). Conclusions Predictive factors determining the survival time of patients are strongly associated with morphological features of tumours. A thorough analysis of each case plays a key role in predicting survival time of patients and may be a clue in targeting the therapeutic procedure.
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Wang DD, Ma L, Wong MP, Lee VHF, Yan H. Contribution of EGFR and ErbB-3 Heterodimerization to the EGFR Mutation-Induced Gefitinib- and Erlotinib-Resistance in Non-Small-Cell Lung Carcinoma Treatments. PLoS One 2015; 10:e0128360. [PMID: 25993617 PMCID: PMC4439022 DOI: 10.1371/journal.pone.0128360] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 04/25/2015] [Indexed: 12/02/2022] Open
Abstract
EGFR mutation-induced drug resistance has become a major threat to the treatment of non-small-cell lung carcinoma. Essentially, the resistance mechanism involves modifications of the intracellular signaling pathways. In our work, we separately investigated the EGFR and ErbB-3 heterodimerization, regarded as the origin of intracellular signaling pathways. On one hand, we combined the molecular interaction in EGFR heterodimerization with that between the EGFR tyrosine kinase and its inhibitor. For 168 clinical subjects, we characterized their corresponding EGFR mutations using molecular interactions, with three potential dimerization partners (ErbB-2, IGF-1R and c-Met) of EGFR and two of its small molecule inhibitors (gefitinib and erlotinib). Based on molecular dynamics simulations and structural analysis, we modeled these mutant-partner or mutant-inhibitor interactions using binding free energy and its components. As a consequence, the mutant-partner interactions are amplified for mutants L858R and L858R_T790M, compared to the wild type EGFR. Mutant delL747_P753insS represents the largest difference between the mutant-IGF-1R interaction and the mutant-inhibitor interaction, which explains the shorter progression-free survival of an inhibitor to this mutant type. Besides, feature sets including different energy components were constructed, and efficient regression trees were applied to map these features to the progression-free survival of an inhibitor. On the other hand, we comparably examined the interactions between ErbB-3 and its partners (EGFR mutants, IGF-1R, ErbB-2 and c-Met). Compared to others, c-Met shows a remarkably-strong binding with ErbB-3, implying its significant role in regulating ErbB-3 signaling. Moreover, EGFR mutants corresponding to poor clinical outcomes, such as L858R_T790M, possess lower binding affinities with ErbB-3 than c-Met does. This may promote the communication between ErbB-3 and c-Met in these cancer cells. The analysis verified the important contribution of IGF-1R or c-Met in the drug resistance mechanism developed in lung cancer treatments, which may bring many benefits to specialized therapy design and innovative drug discovery.
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Affiliation(s)
- Debby D. Wang
- Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong
- * E-mail:
| | - Lichun Ma
- Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong
| | - Maria P. Wong
- Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Victor H. F. Lee
- Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Hong Yan
- Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong
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Adaptive protein and phosphoprotein networks which promote therapeutic sensitivity or acquired resistance. Biochem Soc Trans 2015; 42:758-64. [PMID: 25109954 DOI: 10.1042/bst20140038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Despite the emergence of dozens of oncogenic targets and corresponding molecularly targeted therapies, in most cases tumours continue to progress or recur due to therapeutic resistance. In the present review, we highlight the ability of MS-based phosphoproteomics to quantify oncogenic signalling networks driving tumour growth and invasion, as well as those networks enabling tumour cell survival in the presence of chemotherapeutics. Quantitative protein phosphorylation profiling will facilitate the design and development of optimal therapeutic strategies targeting the initial tumour while simultaneously blocking the predominant resistance mechanisms.
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Price KAR, Cohen EEW. Mechanisms of and therapeutic approaches for overcoming resistance to epidermal growth factor receptor (EGFR)-targeted therapy in squamous cell carcinoma of the head and neck (SCCHN). Oral Oncol 2015; 51:399-408. [PMID: 25725588 DOI: 10.1016/j.oraloncology.2015.01.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 01/19/2015] [Accepted: 01/28/2015] [Indexed: 01/07/2023]
Abstract
The majority of squamous cell carcinoma of the head and neck (SCCHN) overexpress epidermal growth factor receptor (EGFR), which has been associated with poor treatment response and survival. However, only modest success has been achieved with the use of single agents that target EGFR, possibly due to primary and acquired resistance. This review will discuss key mechanisms of and therapeutic approaches to overcoming resistance to EGFR-targeted therapy in SCCHN. Recent preclinical and clinical investigations have demonstrated that other ErbB family receptors (eg, HER2 and HER3) and other horizontal resistance mechanisms, as well as activation of downstream signaling pathways, epigenetic events, and nuclear EGFR, are possible mediators of resistance to anti-EGFR therapeutics. Key downstream pathways that may be implicated in EGFR resistance include phosphatidylinositol-3-kinase/protein kinase B, vascular endothelial growth factor (VEGF), and mammalian target of rapamycin (mTOR). Multiple agents that target EGFR and other ErbB family members (ie, lapatinib, afatinib, and dacomitinib), as well as combination therapies that target EGFR and selected other pathways (eg, VEGF, mTOR, and c-Met) are being investigated clinically. In addition, several phase II and III trials continue to investigate strategies to enhance the efficacy of EGFR-targeted therapy in SCCHN.
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Affiliation(s)
| | - Ezra E W Cohen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL, USA
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LMP1 promotes expression of insulin-like growth factor 1 (IGF1) to selectively activate IGF1 receptor and drive cell proliferation. J Virol 2014; 89:2590-602. [PMID: 25520502 DOI: 10.1128/jvi.02921-14] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
UNLABELLED Epstein-Barr Virus (EBV) is a gammaherpesvirus that infects the majority of the human population and is linked to the development of multiple cancers, including nasopharyngeal carcinoma. Latent membrane protein 1 (LMP1) is considered the primary oncoprotein of EBV, and in epithelial cells it induces the expression and activation, or phosphorylation, of the epidermal growth factor receptor kinase. To identify effects on additional kinases, an unbiased screen of receptor tyrosine kinases potentially activated by LMP1 was performed. Using a protein array, it was determined that LMP1 selectively activates insulin-like growth factor 1 receptor (IGF1R). This activation takes place in fibroblast, epithelial, and nasopharyngeal cell lines that express LMP1 stably and transiently. Of note, LMP1 altered the phosphorylation, but not the expression, of IGF1R. The use of LMP1 mutants with defective signaling domains revealed that the C-terminal activating region 2 domain of LMP1 increased the mRNA expression and the secretion of the ligand IGF1, which promoted phosphorylation of IGF1R. IGF1R phosphorylation was dependent upon activation of canonical NF-κB signaling and was suppressed by IκBα and a dominant negative form of TRAF6. Inhibition of IGF1R activation with two small-molecule inhibitors, AG1024 and picropodophyllin (PPP), or with short hairpin RNA (shRNA) directed against IGF1R selectively reduced proliferation, focus formation, and Akt activation in LMP1-positive cells but did not impair LMP1-induced cell migration. Expression of constitutively active Akt rescued cell proliferation in the presence of IGF1R inhibitors. These findings suggest that LMP1-mediated activation of IGF1R contributes to the ability of LMP1 to transform epithelial cells. IMPORTANCE EBV is linked to the development of multiple cancers in both lymphoid and epithelial cells, including nasopharyngeal carcinoma. Nasopharyngeal carcinoma is a major cancer that develops in specific populations, with nearly 80,000 new cases reported annually. LMP1 is consistently expressed in early lesions and continues to be detected within 50 to 80% of these cancers at later stages. It is therefore of paramount importance to understand the mechanisms through which LMP1 alters cell growth and contributes to tumorigenesis. This study is the first to determine that LMP1 activates the IGF1R tyrosine kinase by regulating expression of the ligand IGF1. Additionally, the data in this paper reveal that specific targeting of IGF1R selectively impacts LMP1-positive cells. These findings suggest that therapies directed against IGF1R may specifically impair the growth of EBV-infected cells.
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Maslova K, Kyriakakis E, Pfaff D, Frachet A, Frismantiene A, Bubendorf L, Ruiz C, Vlajnic T, Erne P, Resink TJ, Philippova M. EGFR and IGF-1R in regulation of prostate cancer cell phenotype and polarity: opposing functions and modulation by T-cadherin. FASEB J 2014; 29:494-507. [PMID: 25381040 DOI: 10.1096/fj.14-249367] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
T-cadherin is an atypical glycosylphosphatidylinsoitol-anchored member of the cadherin superfamily of adhesion molecules. We found that T-cadherin overexpression in malignant (DU145) and benign (BPH-1) prostatic epithelial cell lines or silencing in the BPH-1 cell line, respectively, promoted or inhibited migration and spheroid invasion in collagen I gel and Matrigel. T-cadherin-dependent effects were associated with changes in cell phenotype: overexpression caused cell dissemination and loss of polarity evaluated by relative positioning of the Golgi/nuclei in cell groups, whereas silencing caused formation of compact polarized epithelial-like clusters. Epidermal growth factor receptor (EGFR) and IGF factor-1 receptor (IGF-1R) were identified as mediators of T-cadherin effects. These receptors per se had opposing influences on cell phenotype. EGFR activation with EGF or IGF-1R inhibition with NVP-AEW541 promoted dissemination, invasion, and polarity loss. Conversely, inhibition of EGFR with gefitinib or activation of IGF-1R with IGF-1 rescued epithelial morphology and decreased invasion. T-cadherin silencing enhanced both EGFR and IGF-1R phosphorylation, yet converted cells to the morphology typical for activated IGF-1R. T-cadherin effects were sensitive to modulation of EGFR or IGF-1R activity, suggesting direct involvement of both receptors. We conclude that T-cadherin regulates prostate cancer cell behavior by tuning the balance in EGFR/IGF-1R activity and enhancing the impact of IGF-1R.
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Affiliation(s)
- Kseniya Maslova
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Emmanouil Kyriakakis
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Dennis Pfaff
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Audrey Frachet
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Agne Frismantiene
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Lukas Bubendorf
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Christian Ruiz
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Tatjana Vlajnic
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Paul Erne
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Thérèse J Resink
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
| | - Maria Philippova
- *Department of Biomedicine, Laboratory for Signal Transduction, and Institute of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland; and Hirslanden Klinik St. Anna, Luzern, Switzerland
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Raju U, Molkentine DP, Valdecanas DR, Deorukhkar A, Mason KA, Buchholz TA, Meyn RE, Ang KK, Skinner H. Inhibition of EGFR or IGF-1R signaling enhances radiation response in head and neck cancer models but concurrent inhibition has no added benefit. Cancer Med 2014; 4:65-74. [PMID: 25355701 PMCID: PMC4312119 DOI: 10.1002/cam4.345] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 07/24/2014] [Accepted: 08/19/2014] [Indexed: 01/07/2023] Open
Abstract
Interaction between the epidermal growth factor receptor (EGFR) and the insulin-like growth factor receptor (IGF-1R) has been well established in many cancer types. We investigated the effects of cetuximab (EGFR antibody) and IMC-A12 (IGF-1R antibody) on the response of head and neck squamous cell carcinoma (HNSCC) to radiation therapy (RT). The effects of cetuximab and IMC-A12 on cell viability and radiosensitivity were determined by clonogenic cell survival assay. Formation of nuclear γ-H2AX and 53BP1 foci was monitored by immunofluorescence. Alterations in target signaling were analyzed by Western blots. In vivo tumor growth delay assay was performed to determine the efficacy of triple therapy with IMC-A12, cetuximab, and RT. In vitro data showed that cetuximab differentially affected the survival and the radiosensitivity of HNSCC cells. Cetuximab suppressed DNA repair that was evident by the prolonged presence of nuclear γ-H2AX and 53BP1 foci. IMC-A12 did not have any effect on the cell survival. However, it increased the radiosensitivity of one of the cell lines. EGFR inhibition increased IGF-1R expression levels and also the association between EGFR and IGF-1R. Addition of IMC-A12 to cetuximab did not increase the radiosensitivity of these cells. Tumor xenografts exhibited enhanced response to RT in the presence of either cetuximab or IMC-A12. Concurrent treatment regimen failed to further enhance the tumor response to cetuximab and/or RT. Taken together our data suggest that concomitant inhibition of both EGFR and IGF-1R pathways did not yield additional therapeutic benefit in overcoming resistance to RT.
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Affiliation(s)
- Uma Raju
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Evaluation of stromal HGF immunoreactivity as a biomarker for melanoma response to RAF inhibitors. Mod Pathol 2014; 27:1193-202. [PMID: 24434899 PMCID: PMC4107197 DOI: 10.1038/modpathol.2013.226] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Revised: 10/12/2013] [Accepted: 10/13/2013] [Indexed: 12/13/2022]
Abstract
Of more than 150 000 published studies evaluating new biomarkers, fewer than 100 biomarkers have been implemented for patient care. One reason for this is lack of rigorous testing by the medical community to validate claims for biomarker clinical relevance, and potential reluctance to publish negative results when confirmation is not obtained. Here we sought to determine the utility and reproducibility of immunohistochemical detection of hepatocyte growth factor (HGF) in melanoma tissue, an approach of potential assistance in defining patients with innate resistance to BRAF inhibitor therapy. To this end, a published and a revised method that retained sensitivity but with greater specificity for HGF detection, were evaluated in cells known to endogenously express HGF, and in models where HGF is upregulated via cytokine induction and via overexpression by gene transfection. Consequent patient evaluation in collaboration with the Melanoma Institute Australia of a cohort of 41 melanoma specimens with extensive clinical annotation failed to validate HGF immunohistochemistry as a predictor of response to BRAF inhibitors. Targeted therapies for advanced melanoma and other cancers show great promise, and rigorous validation studies are thus indicated for approaches that seek to personalize such therapies to maximize therapeutic efficacy.
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Agulló-Ortuño MT, Díaz-García CV, Agudo-López A, Pérez C, Cortijo A, Paz-Ares L, López-Ríos F, Pozo F, de Castro J, Cortés-Funes H, López Martín JA. Relevance of insulin-like growth factor 1 receptor gene expression as a prognostic factor in non-small-cell lung cancer. J Cancer Res Clin Oncol 2014; 141:43-53. [PMID: 25081930 DOI: 10.1007/s00432-014-1787-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 07/22/2014] [Indexed: 01/05/2023]
Abstract
PURPOSE Signalling through the insulin-like growth factor 1 receptor (IGF-1R) is implicated in carcinogenesis, metastasis, and resistance to cytotoxic cancer therapies. The purpose of this study was to investigate the prognostic role of IGF-1R expression in surgically resected non-small-cell lung cancer (NSCLC), and responses to IGF-1R tyrosine kinase inhibitor NVP-ADW742 in a panel of lung cancer cell lines. METHODS Insulin-like growth factor 1 receptor (IGF-1R) expression was evaluated by quantitative RT-PCR in 115 NSCLC samples and in a panel of 6 NSCLC cell lines. Cytotoxicity experiments with IGF-1R inhibitor and conventional systemic drugs such as paclitaxel in cell lines were realised. RESULTS Insulin-like growth factor 1 receptor (IGF-1R) was differentially expressed across histologic subtypes, with the lowest levels observed in squamous cell tumours. Median survival was longer in patients with squamous tumour histology expressing low IGF-1R levels. In multivariable analysis, ageing and high tumour stage were significant predictors of worse overall survival. The hazard of death was lower in patients with squamous histology and low IGF-1R gene expression. There was no correlation between IGF-1R expression and response to tyrosine kinase inhibitor in cell lines tested. However, combination drug treatment resulted in synergistically enhanced antiproliferative effects on several cell lines. CONCLUSIONS These findings suggest that IGF-1R is a potential target for therapy in NSCLC patients. Combination therapies will have an important role in treatment.
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/mortality
- Adenocarcinoma/pathology
- Adult
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/genetics
- Carcinoma, Large Cell/genetics
- Carcinoma, Large Cell/mortality
- Carcinoma, Large Cell/pathology
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/mortality
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/mortality
- Carcinoma, Squamous Cell/pathology
- Female
- Follow-Up Studies
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/mortality
- Lung Neoplasms/pathology
- Male
- Middle Aged
- Neoplasm Grading
- Neoplasm Staging
- Prognosis
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Receptor, IGF Type 1/genetics
- Retrospective Studies
- Reverse Transcriptase Polymerase Chain Reaction
- Survival Rate
- Tumor Cells, Cultured
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Affiliation(s)
- M Teresa Agulló-Ortuño
- Translational Oncology, Instituto de Investigación Hospital 12 de Octubre (i+12), Avda de Córdoba S/N, 28041, Madrid, Spain
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Alagappan D, Ziegler AN, Chidambaram S, Min J, Wood TL, Levison SW. Insulin-Like Growth Factor Receptor Signaling is Necessary for Epidermal Growth Factor Mediated Proliferation of SVZ Neural Precursors in vitro Following Neonatal Hypoxia-Ischemia. Front Neurol 2014; 5:79. [PMID: 24904523 PMCID: PMC4033605 DOI: 10.3389/fneur.2014.00079] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 05/07/2014] [Indexed: 12/18/2022] Open
Abstract
In this study, we assessed the importance of insulin-like growth factor (IGF) and epidermal growth factor (EGF) receptor co-signaling for rat neural precursor (NP) cell proliferation and self-renewal in the context of a developmental brain injury that is associated with cerebral palsy. Consistent with previous studies, we found that there is an increase in the in vitro growth of subventricular zone NPs isolated acutely after cerebral hypoxia–ischemia; however, when cultured in medium that is insufficient to stimulate the IGF type 1 receptor, neurosphere formation and the proliferative capacity of those NPs was severely curtailed. This reduced growth capacity could not be attributed simply to failure to survive. The growth and self-renewal of the NPs could be restored by addition of both IGF-I and IGF-II. Since the size of the neurosphere is predominantly due to cell proliferation we hypothesized that the IGFs were regulating progression through the cell cycle. Analyses of cell cycle progression revealed that IGF-1R activation together with EGFR co-signaling decreased the percentage of cells in G1 and enhanced cell progression into S and G2. This was accompanied by increases in expression of cyclin D1, phosphorylated histone 3, and phosphorylated Rb. Based on these data, we conclude that coordinate signaling between the EGF receptor and the IGF type 1 receptor is necessary for the normal proliferation of NPs as well as for their reactive expansion after injury. These data indicate that manipulations that maintain or amplify IGF signaling in the brain during recovery from developmental brain injuries will enhance the production of new brain cells to improve neurological function in children who are at risk for developing cerebral palsy.
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Affiliation(s)
- Dhivyaa Alagappan
- Department of Neurology and Neuroscience, New Jersey Medical School, Rutgers University , Newark, NJ , USA
| | - Amber N Ziegler
- Department of Neurology and Neuroscience, New Jersey Medical School, Rutgers University , Newark, NJ , USA
| | - Shravanthi Chidambaram
- Department of Neurology and Neuroscience, New Jersey Medical School, Rutgers University , Newark, NJ , USA
| | - Jungsoo Min
- Department of Neurology and Neuroscience, New Jersey Medical School, Rutgers University , Newark, NJ , USA
| | - Teresa L Wood
- Department of Neurology and Neuroscience, New Jersey Medical School, Rutgers University , Newark, NJ , USA
| | - Steven W Levison
- Department of Neurology and Neuroscience, New Jersey Medical School, Rutgers University , Newark, NJ , USA
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Schanzer JM, Wartha K, Croasdale R, Moser S, Künkele KP, Ries C, Scheuer W, Duerr H, Pompiati S, Pollman J, Stracke J, Lau W, Ries S, Brinkmann U, Klein C, Umana P. A novel glycoengineered bispecific antibody format for targeted inhibition of epidermal growth factor receptor (EGFR) and insulin-like growth factor receptor type I (IGF-1R) demonstrating unique molecular properties. J Biol Chem 2014; 289:18693-706. [PMID: 24841203 DOI: 10.1074/jbc.m113.528109] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
In the present study, we have developed a novel one-arm single chain Fab heterodimeric bispecific IgG (OAscFab-IgG) antibody format targeting the insulin-like growth factor receptor type I (IGF-1R) and the epidermal growth factor receptor (EGFR) with one binding site for each target antigen. The bispecific antibody XGFR is based on the "knob-into-hole" technology for heavy chain heterodimerization with one heavy chain consisting of a single chain Fab to prevent wrong pairing of light chains. XGFR was produced with high expression yields and showed simultaneous binding to IGF-1R and EGFR with high affinity. Due to monovalent binding of XGFR to IGF-1R, IGF-1R internalization was strongly reduced compared with the bivalent parental antibody, leading to enhanced Fc-mediated cellular cytotoxicity. To further increase immune effector functions triggered by XGFR, the Fc portion of the bispecific antibody was glycoengineered, which resulted in strong antibody-dependent cell-mediated cytotoxicity activity. XGFR-mediated inhibition of IGF-1R and EGFR phosphorylation as well as A549 tumor cell proliferation was highly effective and was comparable with a combined treatment with EGFR (GA201) and IGF-1R (R1507) antibodies. XGFR also demonstrated potent anti-tumor efficacy in multiple mouse xenograft tumor models with a complete growth inhibition of AsPC1 human pancreatic tumors and improved survival of SCID beige mice carrying A549 human lung tumors compared with treatment with antibodies targeting either IGF-1R or EGFR. In summary, we have applied rational antibody engineering technology to develop a heterodimeric OAscFab-IgG bispecific antibody, which combines potent signaling inhibition with antibody-dependent cell-mediated cytotoxicity induction and results in superior molecular properties over two established tetravalent bispecific formats.
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Affiliation(s)
| | | | | | - Samuel Moser
- Roche Glycart AG, CH-8952 Schlieren, Switzerland, and
| | | | | | | | - Harald Duerr
- Large Molecule Research, Pharmaceutical Research and Early Development, Roche Diagnostics GmbH, Nonnenwald 2, D-82372 Penzberg, Germany
| | - Sandra Pompiati
- Large Molecule Research, Pharmaceutical Research and Early Development, Roche Diagnostics GmbH, Nonnenwald 2, D-82372 Penzberg, Germany
| | - Jan Pollman
- Large Molecule Research, Pharmaceutical Research and Early Development, Roche Diagnostics GmbH, Nonnenwald 2, D-82372 Penzberg, Germany
| | - Jan Stracke
- Large Molecule Research, Pharmaceutical Research and Early Development, Roche Diagnostics GmbH, Nonnenwald 2, D-82372 Penzberg, Germany
| | - Wilma Lau
- Large Molecule Research, Pharmaceutical Research and Early Development, Roche Diagnostics GmbH, Nonnenwald 2, D-82372 Penzberg, Germany
| | - Stefan Ries
- Large Molecule Research, Pharmaceutical Research and Early Development, Roche Diagnostics GmbH, Nonnenwald 2, D-82372 Penzberg, Germany
| | - Ulrich Brinkmann
- Large Molecule Research, Pharmaceutical Research and Early Development, Roche Diagnostics GmbH, Nonnenwald 2, D-82372 Penzberg, Germany
| | | | - Pablo Umana
- Roche Glycart AG, CH-8952 Schlieren, Switzerland, and
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47
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Nabholtz JM, Abrial C, Mouret-Reynier MA, Dauplat MM, Weber B, Gligorov J, Forest AM, Tredan O, Vanlemmens L, Petit T, Guiu S, Van Praagh I, Jouannaud C, Dubray-Longeras P, Tubiana-Mathieu N, Benmammar KE, Kullab S, Bahadoor MRK, Radosevic-Robin N, Kwiatkowski F, Desrichard A, Cayre A, Uhrhammer N, Chalabi N, Chollet P, Penault-Llorca F. Multicentric neoadjuvant phase II study of panitumumab combined with an anthracycline/taxane-based chemotherapy in operable triple-negative breast cancer: identification of biologically defined signatures predicting treatment impact. Ann Oncol 2014; 25:1570-7. [PMID: 24827135 DOI: 10.1093/annonc/mdu183] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) is a heterogeneous group of tumors for some of which the epithelial growth factor receptor (EGFR) pathway may play an important role. We investigated the efficacy and toxicity of an anti-EGFR antibody (panitumumab) combined with a standard neoadjuvant anthracycline-taxane-based chemotherapy in patients with operable, stage II-III, TNBC. PATIENTS AND METHODS Treatment in this multicentric neoadjuvant pilot study consisted of panitumumab (9 mg/kg) for eight cycles q.3 weeks combined with four cycles of 5-fluorouracil, epidoxorubicin and cyclophosphamide (FEC100: 500/100/500 mg/m(2)) q.3 weeks, followed by four cycles of docetaxel (T: 100 mg/m(2)) q.3 weeks. Following therapy, all patients underwent surgical resection. Pathologic complete response (pCR) in assessable patients was the main end point while clinical response, toxicity and ancillary studies were secondary end points. Paraffin-embedded and frozen tumor samples were systematically collected with the aim to identify predictive biomarkers of efficacy and resistance in order to select biologically defined subpopulations for potential further clinical development of the anti-EGFR antibody. RESULTS Sixty patients were included with 47 assessable for pathologic response. The pCR rates were 46.8% [95% confidence interval (CI): 32.5% to 61.1%] and 55.3% [95% CI: 41.1% to 69.5%] according, respectively, to Chevallier and Sataloff classifications. The complete clinical response (cCR) rate was 37.5%. Conservative surgery was carried out in 87% of cases. Toxicity was manageable. The association of high EGFR and low cytokeratin 8/18 expression in tumor cells on one hand and high density of CD8+ tumor-infiltrating lymphocytes on the other hand were significantly predictive of pCR. CONCLUSIONS Panitumumab in combination with FEC100 followed by docetaxel appears efficacious, with acceptable toxicity, as neoadjuvant therapy of operable TNBC. Several biomarkers could help define large subsets of patients with a high probability of pCR, suggesting a potential interest to further develop this combination in biologically defined subgroups of patients with TNBC. CLINICAL TRIAL NUMBER NCT00933517.
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Affiliation(s)
- J M Nabholtz
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand Clinical and Translational Research Division, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand CIC 501, UMR 766, Clermont-Ferrand
| | - C Abrial
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand Clinical and Translational Research Division, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand CIC 501, UMR 766, Clermont-Ferrand
| | - M A Mouret-Reynier
- ERTICA EA 4677, University of Auvergne, Clermont-FerrandDepartments of Medical Oncology, Clermont-Ferrand
| | - M M Dauplat
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand Biopathology, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand
| | - B Weber
- Alexis Vautrin Comprehensive Cancer Centre, Nancy
| | | | | | - O Tredan
- Leon Berard Comprehensive Cancer Centre, Lyon
| | - L Vanlemmens
- Oscar Lambret Comprehensive Cancer Centre, Lille
| | - T Petit
- Paul Strauss Comprehensive Cancer Centre, Strasbourg
| | - S Guiu
- Georges François Leclerc Comprehensive Cancer Centre, Dijon
| | - I Van Praagh
- Departments of Medical Oncology, Clermont-Ferrand
| | - C Jouannaud
- Jean Godinot Comprehensive Cancer Institute, Reims
| | - P Dubray-Longeras
- ERTICA EA 4677, University of Auvergne, Clermont-FerrandDepartments of Medical Oncology, Clermont-Ferrand
| | | | | | - S Kullab
- Departments of Medical Oncology, Clermont-Ferrand
| | - M R K Bahadoor
- Departments of Medical Oncology, Clermont-Ferrand Oncauvergne Regional Oncology Network
| | - N Radosevic-Robin
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand Biopathology, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand
| | - F Kwiatkowski
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand Clinical and Translational Research Division, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand LMB GenAuvergne Oncogenetics Department, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand
| | - A Desrichard
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand LMB GenAuvergne Oncogenetics Department, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand
| | - A Cayre
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand CIC 501, UMR 766, Clermont-Ferrand
| | - N Uhrhammer
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand LMB GenAuvergne Oncogenetics Department, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand
| | - N Chalabi
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand Clinical and Translational Research Division, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand CIC 501, UMR 766, Clermont-Ferrand
| | - P Chollet
- Clinical and Translational Research Division, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand Inserm UMR 990, Clermont-Ferrand University of Auvergne, Clermont-Ferrand, France
| | - F Penault-Llorca
- ERTICA EA 4677, University of Auvergne, Clermont-Ferrand Biopathology, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand
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48
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El Amrani M, Lai D, Debbab A, Aly AH, Siems K, Seidel C, Schnekenburger M, Gaigneaux A, Diederich M, Feger D, Lin W, Proksch P. Protein kinase and HDAC inhibitors from the endophytic fungus Epicoccum nigrum. JOURNAL OF NATURAL PRODUCTS 2014; 77:49-56. [PMID: 24328302 DOI: 10.1021/np4005745] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A chemical investigation of the endophytic fungus Epicoccum nigrum isolated from leaves of Mentha suaveolens collected in Morocco resulted in the isolation of five new polyketides, epicocconigrones A and B (1 and 2), 3-methoxyepicoccone B (3), 3-methoxyepicoccone (4), and 2,3,4-trihydroxy-6-(methoxymethyl)-5-methylbenzaldehyde (5), together with five known compounds (6-10). The structures of the new compounds were unambiguously determined by extensive analysis of the 1D and 2D NMR and mass spectroscopic data. Compounds 1 and 10 showed potent inhibition of at least 15 protein kinases with IC50 values ranging from 0.07 to 9.00 μM. Moreover, compounds 1 and 10 inhibited histone deacetylase (HDAC) activities with IC50 values of 9.8 and 14.2 μM, respectively. A preliminary structure-activity relationship is discussed. Interestingly, compounds 1 and 10 exert mainly cytostatic effects in human lymphoma RAJI and U-937 cell lines.
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Affiliation(s)
- Mustapha El Amrani
- Institut für Pharmazeutische Biologie und Biotechnologie, Heinrich-Heine-Universität Düsseldorf , Universitätsstrasse 1, Geb. 26.23, 40225 Düsseldorf, Germany
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High Coexpression of Both EGFR and IGF1R Correlates With Poor Patient Prognosis in Resected Non–Small-Cell Lung Cancer. Clin Lung Cancer 2014; 15:58-66. [DOI: 10.1016/j.cllc.2013.08.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 07/05/2013] [Accepted: 08/06/2013] [Indexed: 11/17/2022]
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50
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Gilmour AM, Abdulkhalek S, Cheng TS, Alghamdi F, Jayanth P, O’Shea LK, Geen O, Arvizu LA, Szewczuk MR. A novel epidermal growth factor receptor-signaling platform and its targeted translation in pancreatic cancer. Cell Signal 2013; 25:2587-603. [DOI: 10.1016/j.cellsig.2013.08.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 08/23/2013] [Indexed: 12/14/2022]
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