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Sahin K, Saripinar E, Durdagi S. Combined 4D-QSAR and target-based approaches for the determination of bioactive Isatin derivatives. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2021; 32:769-792. [PMID: 34530651 DOI: 10.1080/1062936x.2021.1971760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
The hybrid method of the Electron-Conformational Genetic Algorithm (EC-GA) was used to determine the pharmacophore groups and to estimate anticancer activity in isatin derivatives using a robust 4D-QSAR software (EMRE). To build the model, each compound is represented by a set of conformers rather than a single conformation. The Electron Conformational Matrix of Congruity (ECMC) is composed via EMRE software. Electron Conformational Submatrix of Activity (ECSA) was calculated by the comparison of these matrices. Genetic algorithm was used to select important variables to predict theoretical activity. The model with the best seven parameters produced satisfactory results. The E statistics technique was applied to the generated EC-GA model to evaluate the individual contribution of each of the descriptors on biological activity. The r2 and q2 values of the training set compounds were found to be 0.95 and 0.93, respectively. Because no previous 4D-QSAR studies on isatin derivatives have been conducted, this study is important in the development of new isatin derivatives. In this study, 27 isatin derivatives whose activities were estimated using the hybrid EC-GA method were also investigated through molecular docking and molecular dynamics simulations for their BCL-2 inhibitory activity.
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Affiliation(s)
- K Sahin
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University, Istanbul, Turkey
| | - E Saripinar
- Faculty of Science, Department of Chemistry, Erciyes University, Kayseri, Turkey
| | - S Durdagi
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University, Istanbul, Turkey
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Karaca B, Bakır E, Yerer MB, Cumaoğlu A, Hamurcu Z, Eken A. Doxazosin and erlotinib have anticancer effects in the endometrial cancer cell and important roles in ERα and Wnt/β-catenin signaling pathways. J Biochem Mol Toxicol 2021; 35:e22905. [PMID: 34463000 DOI: 10.1002/jbt.22905] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 06/23/2021] [Accepted: 08/20/2021] [Indexed: 12/27/2022]
Abstract
ERα and Wnt/β-catenin pathways are critical for the progression of most endometrial cancers. We aimed to investigate the cytotoxic and apoptotic effects of tamoxifen and quinazoline derivative drugs of doxazosin and erlotinib, and their roles in ERα and Wnt/β-catenin signaling pathways in human endometrial cancer RL 95-2 cell. 3-(4,5-Dimethylthiazol-2yl)-2,5-diphenyltetrazolium bromide assay and xCELLigence systems were performed to evaluate cytotoxicity. Furthermore, apoptotic induction was tested by Annexin V analysis. Caspase-3 and -9 activity and changes in the mitochondrial membrane potential were evaluated. The level of reactive oxygen species was measured by incubating with dichlorofluorescein diacetate. Protein ratios of p-ERα/ERα, GSK3β/p-GSK3β, and p-β-catenin/β-catenin and expression levels of ESR1, EGFR, c-Myc genes were evaluated to elucidate mechanisms in signaling pathways. We found that the tested drugs showed cytotoxic and apoptotic effects in the cells. Doxazosin significantly reduced ESR1 expression, slightly reduced the p-β-catenin/β-catenin ratio and c-Myc expression. Erlotinib significantly increased c-Myc expression while significantly decreasing the p-β-catenin/β-catenin and p-ERα/ERα ratio, and ESR1 expression. However, we observed that the cells develop resistance to erlotinib over a certain concentration, suggesting that ERα, ESR1, EGFR, and c-Myc may be a new target for overcoming drug resistance in the treatment of endometrial cancer. We also observed that erlotinib and doxazosin play an important role in the ERα signaling pathway and can act as potent inhibitors of PKA and/or tyrosine kinase in the Wnt/β-catenin signaling pathway in RL 95-2 cell. In conclusion, doxazosin and erlotinib may have a possible therapeutic potential in human endometrial cancer.
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Affiliation(s)
- Büşra Karaca
- Hakan Çetinsaya Good Clinical Practice and Research Center, Erciyes University, Kayseri, Turkey
| | - Elçin Bakır
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Mükerrem Betül Yerer
- Department of Pharmacology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Ahmet Cumaoğlu
- Department of Biochemistry, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Zuhal Hamurcu
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Ayşe Eken
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
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Li L, Zhang S, Xie D, Chen H, Zheng X, Pan D. Dual inhibitor of PI3K and mTOR (NVP-BEZ235) augments the efficacy of fluorouracil on gastric cancer chemotherapy. Onco Targets Ther 2018; 11:6111-6118. [PMID: 30275715 PMCID: PMC6158000 DOI: 10.2147/ott.s172957] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Purpose NVP-BEZ235 is a recently developed dual inhibitor of PI3K and mTOR and shows good inhibitory effects on several types of tumors. However, the efficacy of NVP-BEZ235 on gastric cancer therapy remains unclear. This study aimed to investigate the potential of NVP-BEZ235 as a new agent to enhance chemotherapy for gastric cancer. Methods Human gastric cancer MKN-45 cells or nude mice xenografted with MKN-45 cells were treated by NVP-BEZ235 and fluorouracil (5-FU) alone or in combination. The proliferation, invasion, apoptosis, and chemoresistance of gastric cancer cells were examined in vivo and in vitro. Results In vitro, combined treatment with NVP-BEZ235 and 5-FU showed synergistic inhibitory effects on proliferation, migration, and invasion and synergistic stimulating effects on apoptosis of MKN-45 cells. In vivo, NVP-BEZ235 and 5-FU synergistically inhibited the growth and induced apoptosis of MKN-45 xenografts. Mechanistically, NVP-BEZ235 inhibited PI3K/Akt/mTOR signaling; decreased the levels of Bcl-2, MMP9, and VEGF; but increased the levels of Bax and cleaved caspase-3 in MKN-45 xenografts. Conclusion NVP-BEZ235 enhances the antitumor efficacy of 5-FU. Therefore, NVP-BEZ235 is a promising agent to enhance chemotherapy for gastric cancer.
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Affiliation(s)
- Liangqing Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China,
| | - Shengwei Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China,
| | - Diya Xie
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China,
| | - Hui Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China,
| | - Xuelan Zheng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China,
| | - Dun Pan
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China,
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#2714, a novel active inhibitor with potent G2/M phase arrest and antitumor efficacy in preclinical models. Cell Death Discov 2018. [PMID: 29531821 PMCID: PMC5841443 DOI: 10.1038/s41420-018-0032-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Arresting cell cycle has been one of the most common approaches worldwide in cancer therapy. Specifically, arresting cells in the G2/M phase is a promising therapeutic approach in the battle against lung cancer. In the present study, we demonstrated the anticancer activities and possible mechanism of compound #2714, which can prompt G2/M phase arrest followed by cell apoptosis induction in Lewis lung carcinoma LL/2 cells. In vitro, #2714 significantly inhibited LL/2 cell viability in a concentration- and time-dependent manner while exhibiting few toxicities on non-cancer cells. The mechanism study showed that cell proliferation inhibition due to the treatment with #2714 correlated with G2/M phase arrest and was followed by LL/2 cell apoptosis. The characterized changes were associated with the downregulation of phosphorylated cell division cycle 25C (Cdc25C) and upregulation of p53. Apoptosis-associated activation of cleaved caspase-3 was also detected. Moreover, #2714 strongly attenuated LL/2 cell proliferation by disrupting the phosphorylation of p44/42 mitogen-activated protein kinase (MAPK). In vivo, intraperitoneal administration of #2714 (25–100 mg/kg/day) to mice bearing established tumors in xenograft models significantly prevented LL/2 tumor growth (58.1%) without detectable toxicity. Compound #2714 significantly increased apoptosis in LL/2 lung cancer cells in mice models, as observed via terminal deoxynucleotidyl transferase (TdT) dUTP nick-end labeling (TUNEL) assay, and the data from an immunohistochemical analysis showed that #2714 remarkably inhibited the proliferation and angiogenesis of lung cancer in vivo. Taken together, our data suggest that #2714 has a high potential anti-lung cancer efficacy with a pathway-specific mechanism of G2/M phase arrest and subsequent apoptosis induction both in vitro and in vivo; its potential to be an anticancer candidate warrants further investigation.
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Sustained ERK activation-mediated proliferation inhibition of farrerol on human gastric carcinoma cell line by G0/G1-phase cell-cycle arrest. Eur J Cancer Prev 2018; 25:490-9. [PMID: 26656929 DOI: 10.1097/cej.0000000000000212] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Current cancer treatment is partly limited by chemotherapy-induced vascular toxicity associated with damage to vascular endothelial cells. In this study, the cytotoxicity of farrerol against SGC7901 gastric cancer cells and human umbilical vein endothelial cells (HUVECs) in vitro was investigated along with the underlying mechanisms of its growth-inhibitory effect against SGC7901 cells. MTT assays showed that farrerol inhibited SGC7901 cell growth, but exerted no cytotoxicity against HUVECs. Flow cytometry showed that treatment of SGC7901 cells with farrerol (5, 40, or 160 μmol/l) for 24 h caused G0/G1 cell cycle arrest in a concentration-dependent manner. Western blotting indicated that exposure of SGC7901 cells to farrerol resulted in significant upregulation of p27KIP1 (p27), accompanied by sustained activation of ERK1/2 and p38 MAPK instead of JNK. Farrerol-stimulated p27 expression, p38 MAPK activation, and cell growth inhibition were attenuated by pretreatment with U0126, an MEK1/2 inhibitor. In conclusion, this study indicates the selective cytotoxicity of farrerol against SGC7901 cells, but not HUVECs. Furthermore, it provides the first evidence that farrerol could induce cancer cell growth inhibition by G0/G1-phase cell-cycle arrest mediated by sustained ERK activation. The findings show the potential of farrerol as a chemotherapeutic agent without vascular toxicity for use against gastric cancer.
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Tang H, Wei W, Wang W, Zha Z, Li T, Zhang Z, Luo C, Yin H, Huang F, Wang Y. Effects of cultured Cordyceps mycelia polysaccharide A on tumor neurosis factor-α induced hepatocyte injury with mitochondrial abnormality. Carbohydr Polym 2017; 163:43-53. [DOI: 10.1016/j.carbpol.2017.01.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 01/04/2017] [Accepted: 01/04/2017] [Indexed: 01/30/2023]
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Mahdavi M, Lavi MM, Yekta R, Moosavi MA, Nobarani M, Balalaei S, Arami S, Rashidi MR. Evaluation of the cytotoxic, apoptosis inducing activity and molecular docking of spiroquinazolinone benzamide derivatives in MCF-7 breast cancer cells. Chem Biol Interact 2016; 260:232-242. [DOI: 10.1016/j.cbi.2016.10.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 09/10/2016] [Accepted: 10/03/2016] [Indexed: 01/31/2023]
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Wang X, Xia M. 5-Hydroxy-3,6,7,8,3′,4′-hexamethoxyflavone, a polymethoxyflavone, exerts antitumor effect on PI3K/Akt signaling pathway in human gastric cancer cell BGC-7901. J Recept Signal Transduct Res 2015; 36:471-7. [PMID: 26671739 DOI: 10.3109/10799893.2015.1122046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xinjian Wang
- Department of General Surgery, Wendeng Central Hospital of Weihai, Weihai, China and
| | - Min Xia
- Endoscopy Room, Wendeng Central Hospital of Weihai, Weihai, China
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Domino synthesis of fused pyrazolo[5,1- b ]quinazolin-9(1 H )-ones catalyzed by CuI via subsequent Michael addition and elimination. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Megiorni F, McDowell HP, Camero S, Mannarino O, Ceccarelli S, Paiano M, Losty PD, Pizer B, Shukla R, Pizzuti A, Clerico A, Dominici C. Crizotinib-induced antitumour activity in human alveolar rhabdomyosarcoma cells is not solely dependent on ALK and MET inhibition. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2015; 34:112. [PMID: 26445453 PMCID: PMC4596370 DOI: 10.1186/s13046-015-0228-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 09/29/2015] [Indexed: 12/30/2022]
Abstract
Background Rhabdomyosarcoma (RMS) is the most commonly diagnosed malignant soft tissue tumour in children and adolescents. Aberrant expression of Anaplastic Lymphoma Kinase (ALK) and MET gene has been implicated in the malignant progression of RMS, especially in the alveolar subtype. This observation suggests that crizotinib (PF-02341066), a kinase inhibitor against ALK and MET, may have a therapeutic role in RMS, although its antitumour activity in this malignancy has not yet been studied. Methods RH4 and RH30 alveolar RMS (ARMS) cell lines were treated with crizotinib and then assessed by using proliferation, viability, migration and colony formation assays. Multiple approaches, including flow cytometry, immunofluorescence, western blotting and siRNA-based knock-down, were used in order to investigate possible molecular mechanisms linked to crizotinib activity. Results In vitro treatment with crizotinib inhibited ALK and MET proteins, as well as Insulin-like Growth Factor 1 Receptor (IGF1R), with a concomitant robust dephosphorylation of AKT and ERK, two downstream kinases involved in RMS cell proliferation and survival. Exposure to crizotinib impaired cell growth, and accumulation at G2/M phase was attributed to an altered expression and activation of checkpoint regulators, such as Cyclin B1 and Cdc2. Crizotinib was able to induce apoptosis and autophagy in a dose-dependent manner, as shown by caspase-3 activation/PARP proteolytic cleavage down-regulation and by LC3 activation/p62 down-regulation, respectively. The accumulation of reactive oxygen species (ROS) seemed to contribute to crizotinib effects in RH4 and RH30 cells. Moreover, crizotinib-treated RH4 and RH30 cells exhibited a decreased migratory/invasive capacity and clonogenic potential. Conclusions These results provide a further insight into the molecular mechanisms affected by crizotinib in ARMS cells inferring that it could be a useful therapeutic tool in ARMS cancer treatment. Electronic supplementary material The online version of this article (doi:10.1186/s13046-015-0228-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Francesca Megiorni
- Department of Paediatrics and Infantile Neuropsychiatry, Sapienza University, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Heather P McDowell
- Department of Paediatrics and Infantile Neuropsychiatry, Sapienza University, Viale Regina Elena 324, 00161, Rome, Italy. .,Department of Oncology, Alder Hey Children's NHS Foundation Trust, Eaton Road, L12 2AP, Liverpool, UK.
| | - Simona Camero
- Department of Paediatrics and Infantile Neuropsychiatry, Sapienza University, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Olga Mannarino
- Department of Paediatrics and Infantile Neuropsychiatry, Sapienza University, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Simona Ceccarelli
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Milena Paiano
- Department of Paediatrics and Infantile Neuropsychiatry, Sapienza University, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Paul D Losty
- Department of Paediatric Surgery, Alder Hey Children's NHS Foundation Trust; Academic Paediatric Surgery Unit, University of Liverpool, Eaton Road, L12 2AP, Liverpool, UK.
| | - Barry Pizer
- Department of Oncology, Alder Hey Children's NHS Foundation Trust, Eaton Road, L12 2AP, Liverpool, UK.
| | - Rajeev Shukla
- Department of Perinatal and Paediatric Pathology, Alder Hey Children's NHS Foundation Trust, Eaton Road, L12 2AP, Liverpool, UK.
| | - Antonio Pizzuti
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Anna Clerico
- Department of Paediatrics and Infantile Neuropsychiatry, Sapienza University, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Carlo Dominici
- Department of Paediatrics and Infantile Neuropsychiatry, Sapienza University, Viale Regina Elena 324, 00161, Rome, Italy.
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Fares M, Eldehna WM, Abou-Seri SM, Abdel-Aziz HA, Aly MH, Tolba MF. Design, Synthesis andIn VitroAntiproliferative Activity of Novel Isatin-Quinazoline Hybrids. Arch Pharm (Weinheim) 2015; 348:144-54. [DOI: 10.1002/ardp.201400337] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 11/30/2014] [Accepted: 12/01/2014] [Indexed: 01/01/2023]
Affiliation(s)
- Mohamed Fares
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; Egyptian Russian University; Badr City Cairo Egypt
| | - Wagdy M. Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; Egyptian Russian University; Badr City Cairo Egypt
| | - Sahar M. Abou-Seri
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; Cairo University; Cairo Egypt
| | - Hatem A. Abdel-Aziz
- Department of Pharmaceutical Chemistry, College of Pharmacy; King Saud University; Riyadh Saudi Arabia
- Department of Applied Organic Chemistry; National Research Center; Dokki Giza Egypt
| | - Mohamed H. Aly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy; British University in Egypt; Cairo Egypt
| | - Mai F. Tolba
- Department of Pharmacology and Toxicology, Faculty of Pharmacy; Ain Shams University; Cairo Egypt
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Wang CK, Zhang Y, Zhang ZJ, Qiu QW, Cao JG, He ZM. Effects of VBMDMP on the reversal of cisplatin resistance in human lung cancer A549/DDP cells. Oncol Rep 2014; 33:372-82. [PMID: 25394854 DOI: 10.3892/or.2014.3607] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 10/20/2014] [Indexed: 11/05/2022] Open
Abstract
Tumor drug resistance is a major obstacle to cancer chemotherapy. We previously constructed a fusion protein based on two tumstatin-derived sequences named recombinant VBMDM (rVBMDMP). We preliminarily confirmed its inhibition of HUVEC and colon cancer cell growth. The present study further systematically observed the inhibitory effect of rVBMDMP on lung cancer cell growth and analyzed a possible mechanism to provide a theoretical basis for the development of new antitumor protein drugs. The effect of rVBMDMP on human lung adenocarcinoma (A549) and cisplatin-resistant human lung adenocarcinoma (A549/DDP) cell proliferation was evaluated by MTS assay. Hoechst 33342 staining performed together with fluorescence microscopy and immunoblot analysis were used to examine the effects of rVBMDMP on the apoptosis of A549/DDP cells. A protein phosphorylation chip was used to identify changes in rVBMDMP-induced signaling protein phosphorylation. Changes in the phosphatidylinositol 3 kinase (PI3K)/Akt signal transduction pathway and expression of multidrug resistance protein (MRP-2)-related molecules following rVBMDMP treatment in A549/DDP cells were evaluated by western blot analysis. A lung cancer xenograft model was used to evaluate the reversal effect of rVBMDMP on drug-resistance of A549/DDP cell tumors to cisplatin in vivo. The results demonstrated that rVBMDMP increased the phosphorylation of 79 signaling proteins, including focal adhesion kinase (FAK), caspase-6, Fas, FasL and FAF1 and downregulated 30 signaling proteins, including integrin αV, integrin β3, PI3K/Akt, NF-κB and MRP-2 compared with the controls. rVBMDMP also increased the sensitivity of A549 and A549/DDP cells to cisplatin and directly induced apoptosis, which may be related to MRP-2 and Bcl-2 downregulation. The effects of growth inhibition and apoptosis induction of rVBMDMP on A549/DDP cells may be related to the inhibition of integrin αVβ3 and PI3K/Akt protein phosphorylation. Finally, we observed an increase in cancer cell sensitivity to cisplatin by rVBMDMP using the A549/DDP cell xenograft model in nude mice. Our study suggests that rVBMDMP may be an effective potential chemotherapy sensitizer and may be a viable drug candidate in anticancer therapies.
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Affiliation(s)
- Cheng-Kun Wang
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou, Guandong 510182, P.R. China
| | - Yang Zhang
- Cancer Research Institute, University of South China, Hunan, Hengyang 421001, P.R. China
| | - Zhi-Jie Zhang
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou, Guandong 510182, P.R. China
| | - Qin-Wei Qiu
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou, Guandong 510182, P.R. China
| | - Jian-Guo Cao
- Medical College, Hunan Normal University, Hunan, Changsha 410006, P.R. China
| | - Zhi-Min He
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou, Guandong 510182, P.R. China
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