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Roopashree PG, Shetty SS, Shetty VV, Suhasini PC, Suchetha KN. Inhibitory effects of medium-chain fatty acids on the proliferation of human breast cancer cells via suppression of Akt/mTOR pathway and modulating the Bcl-2 family protein. J Cell Biochem 2024; 125:e30571. [PMID: 38666486 DOI: 10.1002/jcb.30571] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/19/2024] [Accepted: 04/09/2024] [Indexed: 06/12/2024]
Abstract
Medium-chain fatty acids (MCFAs) have 6-12 carbon atoms and are instantly absorbed into the bloodstream before traveling to the portal vein and the liver, where they are immediately used for energy and may have antitumor effects. Its role in breast cancer is poorly understood. To investigate the apoptosis-inducing effect of MCFAs in breast cancer cells, cell viability assay, colony formation assay, cell migration assay, cell invasion assay, nuclear morphology, cell cycle assay, intracellular reactive oxygen species (ROS), matrix metalloproteinase (MMP), apoptosis, RT-qPCR analysis, and Western blot analysis were performed. In the present study, MCFA treatments reduced proliferative capability, increased ROS level, increased the depletion of MMP, induced G0/G1 and S phase cell cycle arrest, and late apoptosis of breast cancer cells in an effective concentration. Besides, MCFA treatment contributed to the upregulation of proapoptotic protein (BAK) and caspase-3, and the downregulation of antiapoptotic protein (Bcl-2). Mechanistically, phosphorylation levels of EGFR, Akt, and mTOR were significantly reduced in breast cancer cells treated with MCFAs. However, no significant changes in apoptosis and signaling-related proteins were observed in lauric acid-treated ER-positive cancer cells. Our findings suggested that MCFAs suppressed breast cancer cell proliferation by modulating the PI3K/Akt/mTOR signaling pathway. MCFAs may be a promising therapeutic drug for treating breast cancer.
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Affiliation(s)
- P G Roopashree
- Department of Biochemistry, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Shilpa S Shetty
- Cellomics, Lipidomics and Molecular Genetics Division, Central Research Laboratory, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Vijith Vittal Shetty
- Department of Oncology, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - P C Suhasini
- Department of Biochemistry, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Kumari N Suchetha
- Department of Biochemistry, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
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2
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Suhasini PC, Bhat V, Shetty SS, Shetty PK, Roopashree PG, Kumari NS. High expression of CD9 and Epidermal Growth Factor Receptor promotes the development of tongue cancer. Med Oncol 2024; 41:86. [PMID: 38472425 DOI: 10.1007/s12032-024-02311-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/23/2024] [Indexed: 03/14/2024]
Abstract
Tongue cancer is distinguished by aggressive behavior, a high risk of recurrence, lymph, and distant metastases. Hypoxia-Induced Factor 1 α functions as a CD9 transcription factor. CD9 is a transmembrane protein that may be found on the cell membrane. It can modulate the expression of the Epidermal Growth Factor Receptor (EGFR) pathway. ELISA was used to measure serum CD9, p-EGFR, and p-Akt levels in 70 tongue cancer patients and 35 healthy controls. RT-PCR was used to analyze the gene expression of the related genes. The gene as well as protein expression of CD9, EGFR/p-EGFR, and Akt/p-Akt was significantly higher in case subjects when compared with the controls. The expression of CD9 was higher in case subjects who were smokers/alcoholics when to control subjects who were smokers/alcoholics. Overexpression of CD9 due to hypoxic conditions leads to the activation of EGFR-signaling pathway resulting in cancer progression, resistance to chemotherapy. Hence, CD9 could be a potential target to suppress cancer progression.
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Affiliation(s)
- P C Suhasini
- Department of Biochemistry, KS Hegde Medical Academy, NITTE (Deemed to be University), Mangalore, Karnataka, 575018, India
| | - Vadisha Bhat
- Department of ENT, KS Hegde Medical Academy, NITTE (Deemed to be University), Mangalore, Karnataka, 575018, India
| | - Shilpa S Shetty
- Cellomics, Lipdomics and Molecular Genetics division, Central Research Laboratory, KS Hegde Medical Academy, NITTE (Deemed to be University), Mangalore, Karnataka, 575018, India
| | - Praveen Kumar Shetty
- Department of Biochemistry, KS Hegde Medical Academy, NITTE (Deemed to be University), Mangalore, Karnataka, 575018, India
| | - P G Roopashree
- Department of Biochemistry, KS Hegde Medical Academy, NITTE (Deemed to be University), Mangalore, Karnataka, 575018, India
| | - N Suchetha Kumari
- Department of Biochemistry, KS Hegde Medical Academy, NITTE (Deemed to be University), Mangalore, Karnataka, 575018, India.
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3
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Myint KZ, Balasubramanian B, Venkatraman S, Phimsen S, Sripramote S, Jantra J, Choeiphuk C, Mingphruedhi S, Muangkaew P, Rungsakulkij N, Tangtawee P, Suragul W, Farquharson WV, Wongprasert K, Chutipongtanate S, Sanvarinda P, Ponpuak M, Poungvarin N, Janvilisri T, Suthiphongchai T, Yacqub-Usman K, Grabowska AM, Bates DO, Tohtong R. Therapeutic Implications of Ceritinib in Cholangiocarcinoma beyond ALK Expression and Mutation. Pharmaceuticals (Basel) 2024; 17:197. [PMID: 38399413 PMCID: PMC10892566 DOI: 10.3390/ph17020197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Cholangiocarcinoma (CCA) is a difficult-to-treat cancer, with limited therapeutic options and surgery being the only curative treatment. Standard chemotherapy involves gemcitabine-based therapies combined with cisplatin, oxaliplatin, capecitabine, or 5-FU with a dismal prognosis for most patients. Receptor tyrosine kinases (RTKs) are aberrantly expressed in CCAs encompassing potential therapeutic opportunity. Hence, 112 RTK inhibitors were screened in KKU-M213 cells, and ceritinib, an approved targeted therapy for ALK-fusion gene driven cancers, was the most potent candidate. Ceritinib's cytotoxicity in CCA was assessed using MTT and clonogenic assays, along with immunofluorescence, western blot, and qRT-PCR techniques to analyze gene expression and signaling changes. Furthermore, the drug interaction relationship between ceritinib and cisplatin was determined using a ZIP synergy score. Additionally, spheroid and xenograft models were employed to investigate the efficacy of ceritinib in vivo. Our study revealed that ceritinib effectively killed CCA cells at clinically relevant plasma concentrations, irrespective of ALK expression or mutation status. Ceritinib modulated multiple signaling pathways leading to the inhibition of the PI3K/Akt/mTOR pathway and activated both apoptosis and autophagy. Additionally, ceritinib and cisplatin synergistically reduced CCA cell viability. Our data show ceritinib as an effective treatment of CCA, which could be potentially explored in the other cancer types without ALK mutations.
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Affiliation(s)
- Kyaw Zwar Myint
- Graduate Program in Molecular Medicine, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (K.Z.M.); (B.B.); (S.V.); (T.J.)
| | - Brinda Balasubramanian
- Graduate Program in Molecular Medicine, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (K.Z.M.); (B.B.); (S.V.); (T.J.)
- Translational Medical Sciences Unit, School of Medicine, University of Nottingham, Nottingham NG7 2RD, UK
| | - Simran Venkatraman
- Graduate Program in Molecular Medicine, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (K.Z.M.); (B.B.); (S.V.); (T.J.)
| | - Suchada Phimsen
- Department of Biochemistry, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand; (S.P.); (C.C.)
| | - Supisara Sripramote
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.S.); (J.J.); (T.S.)
| | - Jeranan Jantra
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.S.); (J.J.); (T.S.)
| | - Chaiwat Choeiphuk
- Department of Biochemistry, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand; (S.P.); (C.C.)
| | - Somkit Mingphruedhi
- Hepato-Pancreatic-Biliary Surgery Unit, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (S.M.); (P.M.); (N.R.); (P.T.); (W.S.); (W.V.F.)
| | - Paramin Muangkaew
- Hepato-Pancreatic-Biliary Surgery Unit, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (S.M.); (P.M.); (N.R.); (P.T.); (W.S.); (W.V.F.)
| | - Narongsak Rungsakulkij
- Hepato-Pancreatic-Biliary Surgery Unit, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (S.M.); (P.M.); (N.R.); (P.T.); (W.S.); (W.V.F.)
| | - Pongsatorn Tangtawee
- Hepato-Pancreatic-Biliary Surgery Unit, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (S.M.); (P.M.); (N.R.); (P.T.); (W.S.); (W.V.F.)
| | - Wikran Suragul
- Hepato-Pancreatic-Biliary Surgery Unit, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (S.M.); (P.M.); (N.R.); (P.T.); (W.S.); (W.V.F.)
| | - Watoo Vassanasiri Farquharson
- Hepato-Pancreatic-Biliary Surgery Unit, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (S.M.); (P.M.); (N.R.); (P.T.); (W.S.); (W.V.F.)
| | - Kanokpan Wongprasert
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
| | - Somchai Chutipongtanate
- Division of Epidemiology, Department of Environmental and Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Pimtip Sanvarinda
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
| | - Marisa Ponpuak
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
| | - Naravat Poungvarin
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand;
| | - Tavan Janvilisri
- Graduate Program in Molecular Medicine, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (K.Z.M.); (B.B.); (S.V.); (T.J.)
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.S.); (J.J.); (T.S.)
| | - Tuangporn Suthiphongchai
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.S.); (J.J.); (T.S.)
| | - Kiren Yacqub-Usman
- Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK; (K.Y.-U.); (A.M.G.); (D.O.B.)
| | - Anna M. Grabowska
- Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK; (K.Y.-U.); (A.M.G.); (D.O.B.)
| | - David O. Bates
- Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK; (K.Y.-U.); (A.M.G.); (D.O.B.)
| | - Rutaiwan Tohtong
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.S.); (J.J.); (T.S.)
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Xu F, Wu J, Hu Y, Chu C, Liu W, Li X, Zheng W, Yang W, Zhao B, Guo J, Wang Z, Jia Y, Xiao W. Mechanisms of action underlying the effect of Tongsaimai on wound healing based on experimental and network pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2023; 311:116451. [PMID: 37031824 DOI: 10.1016/j.jep.2023.116451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/23/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tongsaimai (TSM) is a traditional Chinese medicine that has several therapeutic qualities, including anti-inflammatory, anti-oxidative, and anti-vasculitis effects. However, its impacts and underlying mechanisms on wound healing remain unclear. AIM OF THE STUDY The aim of our study was to evaluate TSM for its pro-healing effect and the relevant mechanisms using both experimental validation and network pharmacology analysis. MATERIALS AND METHODS The components of TSM were detected by high-performance liquid chromatography combined with diode array detector (HPLC-DAD). Skin wounds with a diameter of 4 mm were created on the backs of mice, after which, topical treatments of 2.5-10% TSM were applied onto the lesions once daily for either 2 or 7 days. Then, the wound tissues were collected to determine the impacts of TSM on collagen deposition, epithelial cell proliferation, oxidative stress, inflammation, and angiogenesis. Moreover, the effects of TSM (0.5-2 mg/mL) on the cell viability of HUVECs and HaCaT cells were evaluated. RESULTS A total of 11 components in TSM were identified by HPLC-DAD. TSM was found to enhance the rate of wound contraction and increase epithelial thickness and collagen deposition during the healing process. In addition, TSM increased SOD activity and downregulated MDA and IL-1β levels in the wound tissues. Immunofluorescence analysis further indicated an increased expression of Ki67, CD31, and VEGF in wound tissues following TSM administration. Results of the network pharmacology analysis revealed that multiple pathways including VEGF, PI3K/Akt, and MAPK pathways were involved in the pharmacological actions of TSM on wound healing. Accordantly, in vitro experiments revealed that TSM promoted the proliferation of HUVECs and HaCaT cells while activating the PI3K/Akt pathway. CONCLUSIONS Our results suggest that TSM may serve as a therapeutic medication to improve wound healing by employing multiple regulatory mechanisms that affect proliferation, angiogenesis, collagen deposition, oxidative stress, and inflammation.
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Affiliation(s)
- Fanxing Xu
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, China; Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jingxian Wu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yumei Hu
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, China
| | - Chun Chu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Wenjun Liu
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, China
| | - Xiang Li
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Wen Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Weishuo Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Boyan Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jiangxue Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhenzhong Wang
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, China
| | - Ying Jia
- Faculty of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, China.
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Aldabbas R, Shaker OG, Ismail MF, Fathy N. miRNA-559 and MTDH as possible diagnostic markers of psoriasis: Role of PTEN/AKT/FOXO pathway in disease pathogenesis. Mol Cell Biochem 2023; 478:1427-1438. [PMID: 36348199 PMCID: PMC10209283 DOI: 10.1007/s11010-022-04599-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 10/24/2022] [Indexed: 11/09/2022]
Abstract
Psoriasis is a persistent, inflammatory, autoimmune skin disorder which can be elicited by genetic and environmental factors. Several microRNAs (miRNAs) that are abnormally expressed in psoriasis have emerged as an interesting candidate in psoriasis pathogenesis. However, the expression profile and function of miRNA-559, and its direct target metadherin (MTDH), in psoriasis need to be further illuminated. This study intended to assess miRNA-559 and MTDH levels in skin and sera of psoriatic patients and to investigate their clinical significance in an attempt for developing novel distinct tools for early diagnosis of psoriasis. Moreover, this study aimed at exploring participation of miRNA-559 in regulating MTDH/PTEN/AKT pathway in psoriasis. Expression levels of miRNA-559, AKT, FOXO1 and PTEN were measured by real-time qRT-PCR, whereas MTDH and p27 levels were assessed by ELISA in lesional, non-lesional tissues and serum of 20 psoriatic patients and 20 matching controls. Correlation study was conducted between different parameters. The diagnostic performance of miRNA-559 and MTDH in psoriasis was estimated by receiver operating characteristic (ROC) curve analysis. Expression of miRNA-559 in psoriatic patients was significantly downregulated in both lesional tissues and serum as compared to controls. Conversely, MTDH protein level showed significant increase in both tissues and serum of psoriatic patients and was inversely correlated with miRNA-559 level. Meanwhile, levels of PTEN, AKT and FOXO1 were dramatically changed in psoriatic patients compared to controls. Furthermore, serum miRNA-559 and MTDH displayed comparable diagnostic accuracy in discriminating psoriatic patients from controls. Yet, miRNA-559 demonstrated superior diagnostic performance than MTDH in psoriasis diagnosis. Together, the current findings provide the first suggestion of a new mechanism by which downregulation of miRNA-559 might induce proliferation in psoriasis through modulating PTEN/AKT/FOXO1 pathway by positive regulation of MTDH. Thus, miRNA-559 and MTDH might be proposed as promising diagnostic biomarkers of psoriasis.
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Affiliation(s)
- Rana Aldabbas
- PHD Student at Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Olfat G. Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo, 11562 Egypt
| | - Manal F. Ismail
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562 Egypt
| | - Nevine Fathy
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562 Egypt
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Kim J, You HJ, Youn C. SCARA3 inhibits cell proliferation and EMT through AKT signaling pathway in lung cancer. BMC Cancer 2022; 22:552. [PMID: 35578316 PMCID: PMC9112459 DOI: 10.1186/s12885-022-09631-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/27/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Scavenger receptor class A member 3 (SCARA3) is decreased in prostate cancer and myeloma. However, functions of SCARA3 in various cancers remain unclear. In this study, we tried to evaluate the functional study of SCARA3 in lung cancer. METHODS The expression level of SCARA3 in the TCGA-database, lung cancer tissue microarray and lung cancer cells and the prognosis of lung cancer patients were measured. Lung cancer tissue microarray was analyzed pathologically using immunohistochemistry, and quantitative analysis of SCARA3 in normal lung cells and lung cancer cells was analyzed using western blot analysis. Survival curves for lung cancer patients were prepared with the Kaplan-Meier method. Migration and invasion of SCARA3 overexpressed lung cancer cells were determined using a Transwell chamber system. Proliferation of lung cancer cells was determined based on cell viability assay using cell culture in vitro and a tumorigenicity model of BALB/C nude mouse in vivo. RESULTS The expression of SCARA3 was abnormally reduced in TCGA-database, lung tissue microarray, and various lung cancer cells. However, overexpression of SCARA3 reduced the proliferation of lung cancer. The ability of SCARA3 to inhibit cancer cell proliferation was maintained even in vivo using a mouse xenograft model. In addition, overexpression of SCARA3 reduced migration and invasion ability of lung cancer cells and induced decreases of EMT markers such as β-catenin, vimentin, and MMP9. We aimed to prove the role of SCARA3 in the treatment of Lung cancer, and shown that the expression level of SCARA3 is important in cancer treatment using cisplatin. The enhancement of the effect of cisplatin according to SCARA3 overexpression is via the AKT and JNK pathways. CONCLUSIONS This study confirmed an abnormal decrease in SCARA3 in lung cancer. Overexpression of SCARA3 potently inhibited tumors in lung cancer and induced apoptosis by increasing sensitivity of lung cancer to cisplatin. These results suggest that SCARA3 is a major biomarker of lung cancer and that the induction of SCARA3 overexpression can indicate an effective treatment.
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Affiliation(s)
- Jeeho Kim
- Laboratory of Genomic Instability and Cancer therapeutics and Department of Pharmacology, Chosun University School of Medicine, 375 Seosuk-Dong, Gwangju, 501-759, South Korea.,Department of Pharmacology, Chosun University School of Medicine, 375 Seosuk-dong, Gwangju, 501-759, South Korea
| | - Ho Jin You
- Laboratory of Genomic Instability and Cancer therapeutics and Department of Pharmacology, Chosun University School of Medicine, 375 Seosuk-Dong, Gwangju, 501-759, South Korea. .,Department of Pharmacology, Chosun University School of Medicine, 375 Seosuk-dong, Gwangju, 501-759, South Korea.
| | - Chakyung Youn
- Department of Meridian & Acupoint∙Diagnosis College of Korean Medicine, Dongshin University 67, Dongsindae-gil, Naju-si, Jeollanam-do, Republic of Korea.
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Flores-García LC, Ventura-Gallegos JL, Romero-Córdoba SL, Hernández-Juárez AJ, Naranjo-Meneses MA, García-García E, Méndez JP, Cabrera-Quintero AJ, Ramírez-Ruíz A, Pedraza-Sánchez S, Meraz-Cruz N, Vadillo-Ortega F, Zentella-Dehesa A. Sera from women with different metabolic and menopause states differentially regulate cell viability and Akt activation in a breast cancer in-vitro model. PLoS One 2022; 17:e0266073. [PMID: 35413055 PMCID: PMC9004774 DOI: 10.1371/journal.pone.0266073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 03/13/2022] [Indexed: 12/04/2022] Open
Abstract
Obesity is associated with an increased incidence and aggressiveness of breast cancer and is estimated to increment the development of this tumor by 50 to 86%. These associations are driven, in part, by changes in the serum molecules. Epidemiological studies have reported that Metformin reduces the incidence of obesity-associated cancer, probably by regulating the metabolic state. In this study, we evaluated in a breast cancer in-vitro model the activation of the IR-β/Akt/p70S6K pathway by exposure to human sera with different metabolic and hormonal characteristics. Furthermore, we evaluated the effect of brief Metformin treatment on sera of obese postmenopausal women and its impact on Akt and NF-κB activation. We demonstrated that MCF-7 cells represent a robust cellular model to differentiate Akt pathway activation influenced by the stimulation with sera from obese women, resulting in increased cell viability rates compared to cells stimulated with sera from normal-weight women. In particular, stimulation with sera from postmenopausal obese women showed an increase in the phosphorylation of IR-β and Akt proteins. These effects were reversed after exposure of MCF-7 cells to sera from postmenopausal obese women with insulin resistance with Metformin treatment. Whereas sera from women without insulin resistance affected NF-κB regulation. We further demonstrated that sera from post-Metformin obese women induced an increase in p38 phosphorylation, independent of insulin resistance. Our results suggest a possible mechanism in which obesity-mediated serum molecules could enhance the development of luminal A-breast cancer by increasing Akt activation. Further, we provided evidence that the phenomenon was reversed by Metformin treatment in a subgroup of women.
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Affiliation(s)
- Laura C. Flores-García
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas (IIBO), Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - José L. Ventura-Gallegos
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas (IIBO), Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
- Programa Institucional de Cáncer de Mama, IIBO, UNAM, Mexico City, Mexico
| | - Sandra L. Romero-Córdoba
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas (IIBO), Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
- Programa Institucional de Cáncer de Mama, IIBO, UNAM, Mexico City, Mexico
| | - Alfredo J. Hernández-Juárez
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - María A. Naranjo-Meneses
- Clínica de Obesidad y Trastornos de la Conducta Alimentaria, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - Eduardo García-García
- Clínica de Obesidad y Trastornos de la Conducta Alimentaria, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - Juan Pablo Méndez
- Unidad de Investigación en Obesidad, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - Alberto J. Cabrera-Quintero
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - Antonio Ramírez-Ruíz
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - Sigifredo Pedraza-Sánchez
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
| | - Noemi Meraz-Cruz
- Unidad de Vinculación Científica de la Facultad de Medicina, Universidad Nacional Autónoma de México en el Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Felipe Vadillo-Ortega
- Unidad de Vinculación Científica de la Facultad de Medicina, Universidad Nacional Autónoma de México en el Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Alejandro Zentella-Dehesa
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas (IIBO), Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Mexico City, Mexico
- Programa Institucional de Cáncer de Mama, IIBO, UNAM, Mexico City, Mexico
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Carboxyl-Functionalized Carbon Nanotubes Loaded with Cisplatin Promote the Inhibition of PI3K/Akt Pathway and Suppress the Migration of Breast Cancer Cells. Pharmaceutics 2022; 14:pharmaceutics14020469. [PMID: 35214200 PMCID: PMC8878903 DOI: 10.3390/pharmaceutics14020469] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 11/30/2022] Open
Abstract
PI3K/Akt signaling is one of the most frequently dysregulated pathways in cancer, including triple-negative breast cancer. With considerable roles in tumor growth and proliferation, this pathway is studied as one of the main targets in controlling the therapies’ efficiency. Nowadays, the development of nanoparticle–drug conjugates attracts a great deal of attention due to the advantages they provide in cancer treatment. Hence, the main purpose of this study was to design a nanoconjugate based on single-walled carbon nanotubes functionalized with carboxyl groups (SWCNT-COOH) and cisplatin (CDDP) and to explore the potential of inhibiting the PI3K/Akt signaling pathway. MDA-MB-231 cells were exposed to various doses (0.01–2 µg/mL SWCNT-COOH and 0.00632–1.26 µg/mL CDDP) of SWCNT-COOH-CDDP and free components for 24 and 48 h. In vitro biological tests revealed that SWCNT-COOH-CDDP had a high cytotoxic effect, as shown by a time-dependent decrease in cell viability and the presence of a significant number of dead cells in MDA-MB-231 cultures at higher doses. Moreover, the nanoconjugates induced the downregulation of PI3K/Akt signaling, as revealed by the decreased expression of PI3K and p-Akt in parallel with PTEN activation, the promotion of Akt protein degradation, and inhibition of tumor cell migration.
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Hermanowicz JM, Pawlak K, Sieklucka B, Czarnomysy R, Kwiatkowska I, Kazberuk A, Surazynski A, Mojzych M, Pawlak D. MM-129 as a Novel Inhibitor Targeting PI3K/AKT/mTOR and PD-L1 in Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13133203. [PMID: 34206937 PMCID: PMC8268553 DOI: 10.3390/cancers13133203] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/11/2021] [Accepted: 06/22/2021] [Indexed: 01/17/2023] Open
Abstract
Simple Summary MM-129 (1,2,4-triazine derivative) is a novel promising drug candidate against colon cancer. It has the ability to inhibit intracellular pathways promoting tumorigenesis with a simultaneous reduction of PD-L1 expression, a key element of the cancer immune escape axis. MM-129 may also act as a chemosensitizer, overcoming chemoresistance against 5-FU, the first-line agent in the chemother-apy of colon cancer. Our results significantly expand knowledge and help better understand the process of tumorigenesis, the intracellular pathways involved, and the mutual interactions of in-dividual proteins, and create the possibility of their pharmacological blockade. There is a real chance that the obtained results and the conclusions drawn on their basis will help in the development of a new, effective therapy, which could be an attractive alternative to the already existing methods of colon cancer treatment. Abstract Background and aims: The purpose of the present study was to examine the pharmacodynamics features of MM-129 (1,2,4-triazine derivative) as a novel promising drug candidate against colon cancer. Methods: MM-129 was assessed for antitumor activity through an in vivo study on Cby.Cg-Foxn1nu/cmdb mice. The mechanistic studies investigated cellular affinity of a new 1,2,4-triazine derivative by measuring levels of intracellular/extracellular signal molecules participating in tumorigenesis. Results: The results revealed that MM-129 significantly reduced tumor growth in mice challenged with DLD-1 and HT-29 cells. It exerted the ability to inhibit intracellular molecules promoting tumorigenesis and inducing cell cycle arrest, like Akt, mTOR, and CDK2. Simultaneously, it was able to downregulate PD-L1 expression, which involves immunological self-tolerance. Combined administration of MM-129 and 5-fluorouracil (5-FU) additionally amplified these effects, which were manifest as an increase population of cells in the G0/G1 phase. Conclusions: A novel 1,2,4-triazine derivative with a dual mechanism of antitumor activity—MM-129, may act as a chemosensitizer, overcoming chemoresistance against 5-FU, the first-line agent in the chemotherapy of colon cancer.
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Affiliation(s)
- Justyna Magdalena Hermanowicz
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (B.S.); (I.K.); (D.P.)
- Department of Clinical Pharmacy, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland
- Correspondence: ; Tel./Fax: +48-8574-856-01
| | - Krystyna Pawlak
- Department of Monitored Pharmacotherapy, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland;
| | - Beata Sieklucka
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (B.S.); (I.K.); (D.P.)
| | - Robert Czarnomysy
- Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland;
| | - Iwona Kwiatkowska
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (B.S.); (I.K.); (D.P.)
| | - Adam Kazberuk
- Department of Medicinal Chemistry, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (A.K.); (A.S.)
| | - Arkadiusz Surazynski
- Department of Medicinal Chemistry, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (A.K.); (A.S.)
| | - Mariusz Mojzych
- Department of Chemistry, Siedlce University of Natural Sciences and Humanities, 3 Maja 54, 08-110 Siedlce, Poland;
| | - Dariusz Pawlak
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (B.S.); (I.K.); (D.P.)
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10
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Thomas A, Reetz S, Stenzel P, Tagscherer K, Roth W, Schindeldecker M, Michaelis M, Rothweiler F, Cinatl J, Cinatl J, Dotzauer R, Vakhrusheva O, Albersen M, Macher-Goeppinger S, Haferkamp A, Juengel E, Neisius A, Tsaur I. Assessment of PI3K/mTOR/AKT Pathway Elements to Serve as Biomarkers and Therapeutic Targets in Penile Cancer. Cancers (Basel) 2021; 13:2323. [PMID: 34066040 PMCID: PMC8151654 DOI: 10.3390/cancers13102323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022] Open
Abstract
The PI3K/mTOR/AKT pathway might represent an intriguing option for treatment of penile cancer (PeCa). We aimed to assess whether members of this pathway might serve as biomarkers and targets for systemic therapy. Tissue of primary cancer from treatment-naïve PeCa patients was used for tissue microarray analysis. Immunohistochemical staining was performed with antibodies against AKT, pAKT, mTOR, pmTOR, pS6, pPRAS, p4EBP1, S6K1 and pp70S6K. Protein expression was correlated with clinicopathological characteristics as well as overall survival (OS), disease-specific survival (DSS), recurrence-free survival (RFS) and metastasis-free survival (MFS). AKT inhibition was tested in two primarily established, treatment-naïve PeCa cell lines by treatment with capivasertib and analysis of cell viability and chemotaxis. A total of 76 patients surgically treated for invasive PeCa were included. Higher expression of AKT was significantly more prevalent in high-grade tumors and predictive of DSS and OS in the Kaplan-Meier analysis, and an independent predictor of worse OS and DSS in the multivariate regression analysis. Treatment with pan-AKT inhibitor capivasertib in PeCa cell lines induced a significant downregulation of both total AKT and pAKT as well as decreased cell viability and chemotaxis. Selected protein candidates of the mTOR/AKT signaling pathway demonstrate association with histological and survival parameters of PeCa patients, whereas AKT appears to be the most promising one.
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Affiliation(s)
- Anita Thomas
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
| | - Sascha Reetz
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
| | - Philipp Stenzel
- Department of Pathology, University Medicine Mainz, 55122 Mainz, Germany; (P.S.); (K.T.); (W.R.); (M.S.)
| | - Katrin Tagscherer
- Department of Pathology, University Medicine Mainz, 55122 Mainz, Germany; (P.S.); (K.T.); (W.R.); (M.S.)
| | - Wilfried Roth
- Department of Pathology, University Medicine Mainz, 55122 Mainz, Germany; (P.S.); (K.T.); (W.R.); (M.S.)
| | - Mario Schindeldecker
- Department of Pathology, University Medicine Mainz, 55122 Mainz, Germany; (P.S.); (K.T.); (W.R.); (M.S.)
| | - Martin Michaelis
- Industrial Biotechnology Centre and School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK;
| | - Florian Rothweiler
- Institute of Medical Virology, Goethe-University, 60596 Frankfurt am Main, Germany; (F.R.); (J.C.J.); (J.C.)
| | - Jindrich Cinatl
- Institute of Medical Virology, Goethe-University, 60596 Frankfurt am Main, Germany; (F.R.); (J.C.J.); (J.C.)
| | - Jaroslav Cinatl
- Institute of Medical Virology, Goethe-University, 60596 Frankfurt am Main, Germany; (F.R.); (J.C.J.); (J.C.)
| | - Robert Dotzauer
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
| | - Olesya Vakhrusheva
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
| | - Maarten Albersen
- Department of Urology, University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Stephan Macher-Goeppinger
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
| | - Axel Haferkamp
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
| | - Eva Juengel
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
| | - Andreas Neisius
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
- Department of Urology and Pediatric Urology, Krankenhaus der Barmherzigen Brüder Trier, 54292 Trier, Germany
| | - Igor Tsaur
- Department of Urology and Pediatric Urology, University Medicine Mainz, 55122 Mainz, Germany; (A.T.); (S.R.); (R.D.); (O.V.); (S.M.-G.); (A.H.); (E.J.); (A.N.)
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Herrera‐Solorio AM, Peralta‐Arrieta I, Armas López L, Hernández‐Cigala N, Mendoza Milla C, Ortiz Quintero B, Catalán Cárdenas R, Pineda Villegas P, Rodríguez Villanueva E, Trejo Iriarte CG, Zúñiga J, Arrieta O, Ávila‐Moreno F. LncRNA SOX2-OT regulates AKT/ERK and SOX2/GLI-1 expression, hinders therapy, and worsens clinical prognosis in malignant lung diseases. Mol Oncol 2021; 15:1110-1129. [PMID: 33433063 PMCID: PMC8024737 DOI: 10.1002/1878-0261.12875] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/31/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
The involvement of LncRNA SOX2-overlapping transcript (SOX2-OT), SOX2, and GLI-1 transcription factors in cancer has been well documented. Nonetheless, it is still unknown whether co-expressed SOX2-OT/SOX2 or SOX2-OT/SOX2/GLI-1 axes are epigenetically/transcriptionally involved in terms of resistance to oncology therapy and in poorer clinical outcomes for patients with lung cancer. We evaluated the role of SOX2-OT/SOX2 and SOX2-OT/SOX2/GLI-1 axes using RT-qPCR, western blot, immunofluorescence analyses, gene silencing, cellular cytotoxic, and ChIP-qPCR assays on human cell lines, solid lung malignant tumors, and normal lung tissue. We detected that the SOX2-OT/SOX2/GLI-1 axis promotes resistance to tyrosine kinase inhibitor (TKI)-erlotinib and cisplatin-based therapy. Evidence from this study show that SOX2-OT modulates the expression/activation of EGFR-pathway members AKT/ERK. Further, both SOX2-OT and GLI-1 genes are epigenetically regulated at their promoter sequences, in an LncRNA SOX2-OT-dependent manner, mainly through modifying the enrichment of the activation histone mark H3K4me3/H3K27Ac, versus the repressive histone mark H3K9me3/H3K27me3. In addition, we identified that inhibition of SOX2-OT and reduced expression of SOX2/GLI-1 sensitizes lung cancer cells to EGFR/TKI-erlotinib or cisplatin-based treatment. Finally, we show that high co-expression of SOX2-OT/SOX2 transcripts and SOX2/GLI-1 proteins appears to correlate with a poor clinical prognosis and lung malignant phenotype. Collectively, these results present evidence that LncRNA SOX2-OT modulates an orchestrated resistance mechanism, promoting poor prognosis and human lung malignancy through genetic, epigenetic, and post-translational mechanisms.
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Affiliation(s)
- Abril Marcela Herrera‐Solorio
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Irlanda Peralta‐Arrieta
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Leonel Armas López
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Nallely Hernández‐Cigala
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Criselda Mendoza Milla
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Blanca Ortiz Quintero
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Rodrigo Catalán Cárdenas
- Thoracic Oncology UnitLaboratory of Personalized MedicineInstituto Nacional de Cancerología (INCAN)Mexico CityMexico
| | - Priscila Pineda Villegas
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Evelyn Rodríguez Villanueva
- Grupo de Investigación en Células Troncales e Ingeniería de Tejidos (GICTIT)Laboratorio de Investigación en Odontología AlmarazFES‐IztacalaNational Autonomous University of México (UNAM)Tlalnepantla de BazMexico
| | - Cynthia G. Trejo Iriarte
- Grupo de Investigación en Células Troncales e Ingeniería de Tejidos (GICTIT)Laboratorio de Investigación en Odontología AlmarazFES‐IztacalaNational Autonomous University of México (UNAM)Tlalnepantla de BazMexico
| | - Joaquín Zúñiga
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Oscar Arrieta
- Thoracic Oncology UnitLaboratory of Personalized MedicineInstituto Nacional de Cancerología (INCAN)Mexico CityMexico
| | - Federico Ávila‐Moreno
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
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12
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Unraveling the Molecular Tumor-Promoting Regulation of Cofilin-1 in Pancreatic Cancer. Cancers (Basel) 2021; 13:cancers13040725. [PMID: 33578795 PMCID: PMC7916621 DOI: 10.3390/cancers13040725] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/26/2021] [Accepted: 02/07/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Unraveling the mechanistic regulations that influence tumor behavior is an important step towards treatment. However, in vitro studies capture only small parts of the complex signaling cascades leading to tumor development. Mechanistic modeling, instead, allows a more holistic view of complex signaling pathways and their crosstalk. These models are able to suggest mechanistic regulations that can be validated by targeted and thus more cost-effective experiments. This article presents a logical model of pancreatic cancer cells with high cofilin-1 expression. The model includes migratory, proliferative, and apoptotic pathways as well as their crosstalk. Based on this model, mechanistic regulations affecting tumor promotion could be unraveled. Moreover, it was applied to screen for new therapeutic targets. The development of resistance mechanisms is a common limitation of cancer therapies. Therefore, new approaches are needed to identify optimal treatments. One is suggested in this article, indicating the surface protein CD44 as a promising target. Abstract Cofilin-1 (CFL1) overexpression in pancreatic cancer correlates with high invasiveness and shorter survival. Besides a well-documented role in actin remodeling, additional cellular functions of CFL1 remain poorly understood. Here, we unraveled molecular tumor-promoting functions of CFL1 in pancreatic cancer. For this purpose, we first show that a knockdown of CFL1 results in reduced growth and proliferation rates in vitro and in vivo, while apoptosis is not induced. By mechanistic modeling we were able to predict the underlying regulation. Model simulations indicate that an imbalance in actin remodeling induces overexpression and activation of CFL1 by acting on transcription factor 7-like 2 (TCF7L2) and aurora kinase A (AURKA). Moreover, we could predict that CFL1 impacts proliferation and apoptosis via the signal transducer and activator of transcription 3 (STAT3). These initial model-based regulations could be substantiated by studying protein levels in pancreatic cancer cell lines and human datasets. Finally, we identified the surface protein CD44 as a promising therapeutic target for pancreatic cancer patients with high CFL1 expression.
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13
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Radwan E, Ali M, Faied SMA, Omar HM, Mohamed WS, Abd-Elghaffar SK, Sayed AA. Novel therapeutic regimens for urethane-induced early lung cancer in rats: Combined cisplatin nanoparticles with vitamin-D 3. IUBMB Life 2020; 73:362-374. [PMID: 33332722 DOI: 10.1002/iub.2432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/27/2020] [Accepted: 12/08/2020] [Indexed: 12/24/2022]
Abstract
Lung cancer remains incurable; therefore, novel therapeutical approaches are of great demand. This study was designed to investigate the effectiveness of cisplatin nanoparticles combined with vitamin-D3 on urethane-induced early lung cancer in rats and to clarify the underlying signaling mechanisms. Early lung cancer was induced in male Wistar rats by urethane. Rats were divided into six groups: I-control, II-cancer untreated, III-cancer + free cisplatin, IV-cancer + cisplatin nanoparticles, V-cancer + free cisplatin + vitamin-D3 , VI-cancer + cisplatin nanoparticles + vitamin-D3 . Inflammation, proliferation, and apoptosis were evaluated together with the levels of tumor marker CK-19 along with histological assessment. Treatment of lung cancer with either free or nanoparticles of cisplatin alone demonstrated significant suppression in the expression of inflammatory, anti-apoptotic and tumor markers compared to rats with lung cancer. Moreover, vitamin-D3 supplementation with either cisplatin forms lead to a further decrease of all markers, markedly with cisplatin nanoparticles. The present study shows the synergistic effect of cisplatin-nanoparticles combined with vitamin-D3 as a new therapy regimen against lung cancer. Further studies with larger sample sizes and longer duration are needed to confirm these results.
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Affiliation(s)
- Eman Radwan
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Maha Ali
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Soad M A Faied
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Hossam M Omar
- Department of Zoology, Faculty of Science, Assiut University, Assiut, Egypt
| | - Wael S Mohamed
- Department of Polymers and Pigments, National Research Centre, Giza, Egypt
| | - Sary Kh Abd-Elghaffar
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Ayat A Sayed
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt
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14
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Notaro A, Frei A, Rubbiani R, Jakubaszek M, Basu U, Koch S, Mari C, Dotou M, Blacque O, Gouyon J, Bedioui F, Rotthowe N, Winter RF, Goud B, Ferrari S, Tharaud M, Řezáčová M, Humajová J, Tomšík P, Gasser G. Ruthenium(II) Complex Containing a Redox-Active Semiquinonate Ligand as a Potential Chemotherapeutic Agent: From Synthesis to In Vivo Studies. J Med Chem 2020; 63:5568-5584. [PMID: 32319768 DOI: 10.1021/acs.jmedchem.0c00431] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chemotherapy remains one of the dominant treatments to cure cancer. However, due to the many inherent drawbacks, there is a search for new chemotherapeutic drugs. Many classes of compounds have been investigated over the years to discover new targets and synergistic mechanisms of action including multicellular targets. In this work, we designed a new chemotherapeutic drug candidate against cancer, namely, [Ru(DIP)2(sq)](PF6) (Ru-sq) (DIP = 4,7-diphenyl-1,10-phenanthroline; sq = semiquinonate ligand). The aim was to combine the great potential expressed by Ru(II) polypyridyl complexes and the singular redox and biological properties associated with the catecholate moiety. Experimental evidence (e.g., X-ray crystallography, electron paramagnetic resonance, electrochemistry) demonstrates that the semiquinonate is the preferred oxidation state of the dioxo ligand in this complex. The biological activity of Ru-sq was then scrutinized in vitro and in vivo, and the results highlight the promising potential of this complex as a chemotherapeutic agent against cancer.
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Affiliation(s)
- Anna Notaro
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
| | - Angelo Frei
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Riccardo Rubbiani
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Marta Jakubaszek
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France.,Institut Curie, PSL University, CNRS UMR 144, F-75005 Paris, France
| | - Uttara Basu
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
| | - Severin Koch
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Cristina Mari
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Mazzarine Dotou
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
| | - Olivier Blacque
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Jérémie Gouyon
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Team Synthèse, Electrochimie, Imagerie et Systèmes Analytiques pour le Diagnostic, F-75005 Paris, France
| | - Fethi Bedioui
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Team Synthèse, Electrochimie, Imagerie et Systèmes Analytiques pour le Diagnostic, F-75005 Paris, France
| | - Nils Rotthowe
- Department of Chemistry, University of Konstanz, Universitätsstrasse 10, D-78457 Konstanz, Germany
| | - Rainer F Winter
- Department of Chemistry, University of Konstanz, Universitätsstrasse 10, D-78457 Konstanz, Germany
| | - Bruno Goud
- Institut Curie, PSL University, CNRS UMR 144, F-75005 Paris, France
| | - Stefano Ferrari
- Institute of Molecular Cancer Research, University of Zurich, CH-8057 Zurich, Switzerland.,Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 143 00 Prague, Czech Republic
| | - Mickaël Tharaud
- Université de Paris, Institut de physique du Globe de Paris, CNRS, F-75005 Paris, France
| | - Martina Řezáčová
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Šimkova 870, 500 03 Hradec Kralove, Czech Republic
| | - Jana Humajová
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University in Prague, 150 06 Prague, Czech Republic
| | - Pavel Tomšík
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Šimkova 870, 500 03 Hradec Kralove, Czech Republic
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
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Sun MY, Wang DD, Sun J, Zhao XH, Cai S, Wu QX, Jie T, Ni ZH, Sun JY, Tang QF. The Zuo Jin Wan Formula increases chemosensitivity of human primary gastric cancer cells by AKT mediated mitochondrial translocation of cofilin-1. Chin J Nat Med 2019; 17:198-208. [PMID: 30910056 DOI: 10.1016/s1875-5364(19)30022-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Indexed: 12/31/2022]
Abstract
Resistance to cisplatin (DDP)-based chemotherapy is a major cause of treatment failure in human gastric cancer (GC). It is necessary to identify the drugs to re-sensitize GC cells to DDP. In our previous research, Zuo Jin Wan Formula (ZJW) has been proved could increase the mitochondrial apoptosis via cofilin-1 in a immortalized cell line, SGC-7901/DDP. Due to the immortalized cells may still difficult highly recapitulate the important molecular events in vivo, primary GC cells model derived from clinical patient was constructed in the present study to further evaluate the effect of ZJW and the underlying molecular mechanism. Immunofluorescent staining was used to indentify primary cultured human GC cells. Western blotting was carried out to detect the protein expression. Cell Counting Kit-8 (CCK-8) was used to evaluate cell proliferation. Flow cytometry analysis was performed to assess cell apoptosis. ZJW inhibited proliferation and induced apoptosis in primary DDP-resistant GC cells. Notably, the apoptosis in GC cells was mediated by inducing cofilin-1 mitochondrial translocation, down-regulating Bcl-2 and up-regulating Bax expression. Surprisingly, the level of p-AKT protein was higher in DDP-resistant GC cells than that of the DDP-sensitive GC cells, and the activation of AKT could attenuate ZJW-induced sensitivity to DDP. These data revealed that ZJW can increase the chemosensitivity in DDP-resistant primary GC cells by inducing mitochondrial apoptosis and AKT inactivation. The combining chemotherapy with ZJW may be an effective therapeutic strategy for GC chemoresistance patients.
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Affiliation(s)
- Meng-Yao Sun
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Dan-Dan Wang
- Institute of Interdisciplinary Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jian Sun
- Department of Clinical Laboratory, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Xiao-Hua Zhao
- Institute of Interdisciplinary Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Si Cai
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Qiu-Xue Wu
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Tao Jie
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Zhen-Hua Ni
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Jian-Yue Sun
- Department of Pediatrics, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China.
| | - Qing-Feng Tang
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China.
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Pourhanifeh MH, Sharifi M, Reiter RJ, Davoodabadi A, Asemi Z. Melatonin and non-small cell lung cancer: new insights into signaling pathways. Cancer Cell Int 2019; 19:131. [PMID: 31123430 PMCID: PMC6521447 DOI: 10.1186/s12935-019-0853-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 05/10/2019] [Indexed: 01/16/2023] Open
Abstract
Non-small-cell lung cancer (NSCLC) is a type of malignancy with progressive metastasis having poor prognosis and lowered survival resulting from late diagnosis. The therapeutic approaches for the treatment of this incurable cancer are chemo- and radiotherapy. Since current treatments are insufficient and because of drug-induced undesirable side effects and toxicities, alternate treatments are necessary and critical. The role of melatonin, produced in and released from the pineal gland, has been documented as a potential therapy for NSCLC. Melatonin prevents tumor metastasis via inducing apoptosis processes and restraining the autonomous cell proliferation. Moreover, melatonin inhibits the progression of tumors due to its oncostatic, pro-oxidant and anti-inflammatory effects. As a result, the combined treatment with melatonin and chemotherapy may have a synergistic effect, as with some other tumors, leading to a prolonged survival and improved quality of life in patients with NSCLC. This review summarizes the available data, based on the molecular mechanisms and related signaling pathways, to show how melatonin and its supplementation function in NSCLC.
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Affiliation(s)
- Mohammad Hossein Pourhanifeh
- 1Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Mehran Sharifi
- 2Department of Hematology and Oncology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Russel J Reiter
- 3Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX USA
| | - Abdoulhossein Davoodabadi
- 4Departments of General Surgery Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Zatollah Asemi
- 1Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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The tyrosine phosphorylated pro-survival form of Fas intensifies the EGF-induced signal in colorectal cancer cells through the nuclear EGFR/STAT3-mediated pathway. Sci Rep 2018; 8:12424. [PMID: 30127519 PMCID: PMC6102278 DOI: 10.1038/s41598-018-30804-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/23/2018] [Indexed: 12/20/2022] Open
Abstract
Tyrosine phosphorylation of Fas (TNFRSF6/CD95) in its death domain turns off Fas-mediated apoptosis, turns on the pro-survival signal, and has implications in different cancers types. We show here that Fas in its pro-survival state, phosphorylated at Y291 (pY291-Fas), functionally interacts with the epidermal growth factor receptor (EGFR), a key cancer-driving protein and major therapeutic target. Using an evolution-guided pY291-Fas proxy, RNA interference, and site-specific phospho-protein detection, we show that pY291-Fas significantly intensifies EGFR signaling in anti-EGFR-resistant colorectal cancer cells via the Yes-1/STAT3-mediated pathway. The pY291-Fas is essential for the EGF-induced formation of the Fas-mediated nuclear EGFR/STAT3 signaling complex consisting of Fas, EGFR, Yes-1, Src, and STAT3. The pY291-Fas accumulates in the nucleus upon EGF treatment and promotes the nuclear localization of phospho-EGFR and phospho-STAT3, the expression of cyclin D1, the activation of STAT3-mediated Akt and MAPK pathways, and cell proliferation and migration. This novel cancer-promoting function of phosphorylated Fas in the nuclear EGFR signaling constitutes the foundation for developing pro-survival-Fas targeted anti-cancer therapies to overcome disease recurrence in patients with anti-EGFR resistant cancer.
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Tankiewicz‐Kwedlo A, Hermanowicz JM, Domaniewski T, Pawlak K, Rusak M, Pryczynicz A, Surazynski A, Kaminski T, Kazberuk A, Pawlak D. Simultaneous use of erythropoietin and LFM-A13 as a new therapeutic approach for colorectal cancer. Br J Pharmacol 2018; 175:743-762. [PMID: 29160911 PMCID: PMC5811618 DOI: 10.1111/bph.14099] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 10/31/2017] [Accepted: 11/07/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Bruton's tyrosine kinase (Btk) is a non-receptor tyrosine kinase involved in the activation of signalling pathways responsible for cell maturation and viability. Btk has previously been reported to be overexpressed in colon cancers. This kind of cancer is often accompanied by anaemia, which is treated with an erythropoietin supplement. The goal of the present study was to assess the effects of combination therapy with erythropoietin β (Epo) and LFM-A13 (Btk inhibitor) on colon cancer in in vitro and in vivo models. EXPERIMENTAL APPROACH DLD-1 and HT-29 human colon adenocarcinoma cells were cultured with Epo and LFM-A13. Cell number and viability, and mRNA and protein levels of Epo receptors, Btk and Akt were assessed. Nude mice were inoculated with adenocarcinoma cells and treated with Epo and LFM-A13. KEY RESULTS The combination of Epo and LFM-A13 mostly exerted a synergistic inhibitory effect on colon cancer cell growth. The therapeutic scheme used effectively killed the cancer cells and attenuated the Btk signalling pathways. Epo + LFM-A13 also prevented the normal process of microtubule assembly during mitosis by down-regulating the expression of Polo-like kinase 1. The combination of Epo and LFM-A13 significantly reduced the growth rate of tumour cells, while it showed high safety profile, inducing no nephrotoxicity, hepatotoxicity or changes in the haematological parameters. CONCLUSION AND IMPLICATIONS Epo significantly enhances the antitumour activity of LFM-A13, indicating that a combination of Epo and LFM-A13 has potential as an effective therapeutic approach for patients with colorectal cancer.
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Affiliation(s)
| | - Justyna Magdalena Hermanowicz
- Department of PharmacodynamicsMedical University of BialystokBialystokPoland
- Department of Clinical PharmacyMedical University of BialystokBialystokPoland
| | - Tomasz Domaniewski
- Department of Monitored PharmacotherapyMedical University of BialystokBialystokPoland
| | - Krystyna Pawlak
- Department of Monitored PharmacotherapyMedical University of BialystokBialystokPoland
| | - Małgorzata Rusak
- Department of Hematological DiagnosticsMedical University of BialystokBialystokPoland
| | - Anna Pryczynicz
- Department of PathomorphologyMedical University of BialystokBialystokPoland
| | | | - Tomasz Kaminski
- Department of PharmacodynamicsMedical University of BialystokBialystokPoland
| | - Adam Kazberuk
- Department of Medicinal ChemistryMedical University of BialystokBialystokPoland
| | - Dariusz Pawlak
- Department of PharmacodynamicsMedical University of BialystokBialystokPoland
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Reactive oxygen species extend insect life span using components of the insulin-signaling pathway. Proc Natl Acad Sci U S A 2017; 114:E7832-E7840. [PMID: 28847950 DOI: 10.1073/pnas.1711042114] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Reactive oxygen species (ROS) are well-known accelerants of aging, but, paradoxically, we show that physiological levels of ROS extend life span in pupae of the moth Helicoverpa armigera, resulting in the dormant state of diapause. This developmental switch appears to operate through a variant of the conventional insulin-signaling pathway, as evidenced by the facts that Akt, p-Akt, and PRMT1 are elevated by ROS, but not insulin, and that high levels of p-Akt fail to phosphorylate FoxO through PRMT1-mediated methylation. These results suggest a distinct signaling pathway culminating in the elevation of FoxO, which in turn promotes the extension of life span characteristic of diapause.
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Jung HJ, Kang JH, Choi S, Son YK, Lee KR, Seong JK, Kim SY, Oh SH. Pharbitis Nil (PN) induces apoptosis and autophagy in lung cancer cells and autophagy inhibition enhances PN-induced apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2017; 208:253-263. [PMID: 28729229 DOI: 10.1016/j.jep.2017.07.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/10/2017] [Accepted: 07/15/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pharbitis Nil (PN) is used as a main component of the existing drug, DA-9701, which was developed to treat functional dyspepsia (FD) in Korea. PN extracts isolated from its seeds have been reported to have anticancer effects. AIM OF THE STUDY The purpose of this study was to investigate the underlying mechanism of the chemotherapeutic effects of PN in lung cancer cells. MATERIALS AND METHODS We performed MTT assays, colony formation assays, flow cytometry assays, Western blot analysis, reverse transcription-polymerase chain reaction (RT-PCR), immunofluorescence analysis, and cell counting assays to study the molecular mechanism of chemotherapeutic effects of PN in lung cancer cells. RESULTS Our results indicate that PN induced autophagy as well as apoptosis. PN inhibited cell proliferation and survival by inducing apoptosis in several lung cancer cell lines. PN-treated cells also exhibited induction of autophagy, as evidenced by increased protein expression levels and punctuate patterns of LC3 II. Moreover, activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2), which plays an important role in autophagy activation, was shown to be related with PN-induced autophagy. Interestingly, pharmacological blockade of autophagy activation with wortmannin and inhibition of ERK1/2 phosphorylation by U0126 markedly enhanced PN-induced apoptosis and reduced cell viability, suggesting that autophagy induced by PN may have a cytoprotective effect by suppressing apoptosis. PN- induced apoptosis was regulated by signal transducer and activator of transcription 3 (STAT3) deactivation. Moreover, decrease of STAT3 activation in PN-treated cells was associated with reduced survivin expression, further demonstrating that PN-induced apoptosis was regulated by STAT3 deactivation. CONCLUSION We believe that PN, which is already proven to treat human patients with FD, might be a potential anticancer drug for human lung cancer. In addition, our data suggest that the combination of PN treatment with an autophagy inhibitor or traditional anticancer agents may be an effective anticancer therapy.
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Affiliation(s)
- Hyun Jin Jung
- Korea Mouse Phenotyping Center, College of Veterinary Medicine, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Ju-Hee Kang
- College of Pharmacy, Gachon University, 191, Hambangmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Seungho Choi
- College of Veterinary Medicine, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Youn Kyoung Son
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 16419-16, Republic of Korea
| | - Je Kyung Seong
- Korea Mouse Phenotyping Center, College of Veterinary Medicine, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, 191, Hambangmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Seung Hyun Oh
- College of Pharmacy, Gachon University, 191, Hambangmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea.
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Cini M, Williams H, Fay MW, Searle MS, Woodward S, Bradshaw TD. Enantiopure titanocene complexes--direct evidence for paraptosis in cancer cells. Metallomics 2016; 8:286-97. [PMID: 26806372 DOI: 10.1039/c5mt00297d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tolerated by normal tissues, anti-cancer therapies based on titanium compounds are limited by low efficacy/selectivity and lack of understanding of their mode(s) of action. In vitro antitumour activity and mode of cell death incurred by enantiopure TiCl2{η-C5H4CHEt(2-MeOPh)}2 (abbreviated Cp(R)2TiCl2) has been investigated. The in vitro anti-tumour activity of Cp(R)2TiCl2 is selective for cancer cells; in clonogenic assays, (S,S)-Cp(R)2TiCl2 was twice as effective at inhibiting colony formation than other stereoisomers after 24 h exposure. HPLC, MS and NMR techniques determined hydrolysis of Cp(R)2TiCl2; data strongly correlate with soluble [Cp(R)2Ti(OH)(OH2)](+) being the biological trigger. Treatment of cells with Cp(R)2TiCl2 provoked extensive cytoplasmic vacuolization, endoplasmic reticulum (ER) swelling and activation of MAPKinase signal transduction, consistent with ligand-induced paraptosis, type III cell death, which is morphologically distinct from, and independent of apoptosis. Indeed, distinct from cisplatin, Cp(R)2TiCl2 failed to perturb cell cycle dynamics, induce γH2AX foci or evoke apoptosis in MDA-MB-468 and HCT-116 cells.
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Affiliation(s)
- Melchior Cini
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK. and School of Pharmacy, Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK. and Nottingham Nanotechnology and Nanoscience Centre, University of Nottingham, University Park, Nottingham NG7 2RD, UK and Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Huw Williams
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK. and Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Mike W Fay
- Nottingham Nanotechnology and Nanoscience Centre, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Mark S Searle
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK. and Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Simon Woodward
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Tracey D Bradshaw
- School of Pharmacy, Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK. and Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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Lam SK, Leung LL, Li YY, Zheng CY, Ho JCM. Combination effects of arsenic trioxide and fibroblast growth factor receptor inhibitor in squamous cell lung carcinoma. Lung Cancer 2016; 101:111-119. [PMID: 27794399 DOI: 10.1016/j.lungcan.2016.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/21/2016] [Accepted: 10/03/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Lung cancer remains the top cancer killer worldwide, with squamous cell carcinoma (SCC) as the second commonest histologic subtype. Arsenic trioxide (ATO) was previously shown to suppress growth of lung cancer. Fibroblast growth factor receptor (FGFR) amplification was recently demonstrated in lung SCC, with specific FGFR inhibitor (e.g. PD173074) developed as a potential targeted therapy. Therefore the combination effects of ATO and PD173074 in SCC was studied. MATERIALS AND METHODS The combination of ATO/PD173074 was studied in a proof-of-principle model using a lung SCC cell line with FGFR1 overexpression: SK-MES-1. The effects of ATO and/or PD173074 on cell viability and protein expression were studied by MTT assay and Western blot respectively. Cell cycle analysis, phosphatidylserine externalization and mitochondrial membrane depolarization were monitored by flow cytometry. FGFR1 knockdown was performed with siRNAs. Proteasome inhibitor (MG-132) was used to study the degradation mechanism. In vivo effect of ATO and/or PD173074 was investigated using a nude mice xenograft model. RESULTS Combined ATO/PD173074 reduced cell viability along with increased sub-G1 population, phosphatidylserine externalization and mitochondrial membrane depolarization more significantly than single treatments. Downregulation of FGFR1, p-Akt, Akt, p-Src, Src, p-c-Raf, c-Raf, Erk and survivin as well as upregulation of p-Erk and cleaved PARP were observed upon ATO and/or PD treatment. MG-132 partially reversed the degradation of Akt, Src, c-Raf and Erk induced by ATO/PD, suggestive of ubiquitin-independent proteasome-dependent degradation. However, the mechanism of FGFR1 downregulation remained unknown. Downregulation of FGFR1, Akt, Src, c-Raf and Erk as well as cleaved PARP elevation induced by ATO and/or PD were confirmed in vivo. CONCLUSION Massive protein degradation (FGFR1, Akt, Src, c-Raf and Erk) was induced by ATO and/or PD173074 treatment mainly mediated by activation of proteasomal degradation in SCC cell line SK-MES-1 in vitro and in vivo.
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Affiliation(s)
- Sze-Kwan Lam
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
| | - Leanne Lee Leung
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
| | - Yuan-Yuan Li
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
| | - Chun-Yan Zheng
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
| | - James Chung-Man Ho
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China.
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Whicker ME, Lin ZP, Hanna R, Sartorelli AC, Ratner ES. MK-2206 sensitizes BRCA-deficient epithelial ovarian adenocarcinoma to cisplatin and olaparib. BMC Cancer 2016; 16:550. [PMID: 27465688 PMCID: PMC4964088 DOI: 10.1186/s12885-016-2598-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 07/21/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Platinum resistance is a major obstacle in the treatment of epithelial ovarian cancer (EOC). Activation of the AKT pathway promotes platinum resistance while inhibition of AKT sensitizes chemoresistant cells. Patients with BRCA mutant EOC, and thus a defect in the homologous recombination (HR) repair pathway, demonstrate greater clinical response to platinum and olaparib therapy than patients with BRCA wild-type EOC. MK-2206, an allosteric inhibitor of AKT phosphorylation, sensitizes a variety of cell types to various anticancer agents and is currently undergoing phase II trials as monotherapy for platinum-resistant ovarian, fallopian tube, and peritoneal cancer. This study examines the differential effects of AKT inhibition with cisplatin and olaparib therapy in BRCA1/2-deficient versus wild-type EOC. METHODS PEO1, a chemosensitive BRCA2-mutant serous ovarian adenocarcinoma, and PEO4, a reverted BRCA2-proficient line from the same patient after the development of chemotherapeutic resistance, were primarily used for the study. In PEO1, MK-2206 demonstrated moderate to strong synergism with cisplatin and olaparib at all doses, while demonstrating antagonism at all doses in PEO4. RESULTS Baseline phospho-AKT activity in untreated cells was upregulated in both BRCA1- and 2-deficient cell lines. MK-2206 prevented cisplatin- and olaparib-induced AKT activation in the BRCA2-deficient PEO1 cells. We propose that BRCA-deficient EOC cells upregulate baseline AKT activity to enhance survival in the absence of HR. Higher AKT activity is also required to withstand cytotoxic agent-induced DNA damage, leading to strong synergism between MK-2206 and cisplatin or olaparib therapy in BRCA-deficient cells. CONCLUSIONS MK-2206 shows promise as a chemosensitization agent in BRCA-deficient EOC and merits clinical investigation in this patient population.
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Affiliation(s)
- Margaret E Whicker
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, USA.
| | - Z Ping Lin
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, USA
| | - Ruth Hanna
- Section of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, USA
| | - Alan C Sartorelli
- Department of Pharmacology, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, USA
| | - Elena S Ratner
- Section of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, USA
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Zhao H, Zhao D, Jin H, Li H, Yang X, Zhuang L, Liu T. Bufalin reverses intrinsic and acquired drug resistance to cisplatin through the AKT signaling pathway in gastric cancer cells. Mol Med Rep 2016; 14:1817-22. [PMID: 27357249 DOI: 10.3892/mmr.2016.5426] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Accepted: 04/07/2016] [Indexed: 11/06/2022] Open
Abstract
Cisplatin is the most common chemotherapeutic agent for gastric cancer (GC), however it activates AKT, which contributes to intrinsic and acquired resistance. Bufalin, a traditional Chinese medicine, shows significant anticancer activity by inhibiting the AKT pathway. It was therefore hypothesized that bufalin could counteract cisplatin resistance in GC cells. SGC7901, MKN‑45 and BGC823 human GC cells were cultured under normoxic and hypoxic conditions. Effects of cisplatin and bufalin on GC cells were measured by a cell counting kit, apoptosis was analyzed by flow cytometry, and immunoblotting was used to detect proteins associated with the AKT signaling pathway. It was demonstrated that bufalin synergized with cisplatin to inhibit proliferation and promote apoptosis of GC cells by diminishing the activation of cisplatin-induced AKT under normoxic and hypoxic conditions. Bufalin also inhibits cisplatin-activated molecules downstream of AKT that affect proliferation and apoptosis, including glycogen synthase kinase, mammalian target of rapamycin, ribosomal protein S6 Kinase and eukaryotic translation initiation factor-4E-binding protein-1. To investigate acquired cisplatin resistance, a cisplatin‑resistant cell line SGC7901‑CR was used. It was demonstrated that bufalin reversed acquired cisplatin resistance and significantly induced apoptosis through the AKT pathway. These results imply that bufalin could extend the therapeutic effect of cisplatin on GC cells when administered in combination.
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Affiliation(s)
- Hongyan Zhao
- Department of Gastroenterology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Dali Zhao
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Huilin Jin
- Department of Gastroenterology, The Fourth Hospital of Harbin, Harbin, Heilongjiang 150026, P.R. China
| | - Hongwei Li
- Department of Gastroenterology, The Fourth Hospital of Harbin, Harbin, Heilongjiang 150026, P.R. China
| | - Xiaoying Yang
- Department of Gastroenterology, The Fourth Hospital of Harbin, Harbin, Heilongjiang 150026, P.R. China
| | - Liwei Zhuang
- Department of Gastroenterology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Tiefu Liu
- Department of Gastroenterology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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Nemec MJ, Kim H, Marciante AB, Barnes RC, Talcott ST, Mertens-Talcott SU. Pyrogallol, an absorbable microbial gallotannins-metabolite and mango polyphenols (Mangifera Indica L.) suppress breast cancer ductal carcinoma in situ proliferation in vitro. Food Funct 2016; 7:3825-33. [DOI: 10.1039/c6fo00636a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Mango polyphenols and pyrogallol, a microbial gallotannin-metabolite have an anti-proliferative effect in anin situbreast cancer cell, MCF10DCIS.COM.
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Affiliation(s)
- Matthew J. Nemec
- Interdisciplinary Program of Toxicology
- Texas A&M University
- College station
- USA
| | - Hyemee Kim
- Department of Nutrition and Food Science
- Texas A&M University
- College station
- USA
| | | | - Ryan C. Barnes
- Department of Nutrition and Food Science
- Texas A&M University
- College station
- USA
| | - Stephen T. Talcott
- Department of Nutrition and Food Science
- Texas A&M University
- College station
- USA
| | - Susanne U. Mertens-Talcott
- Interdisciplinary Program of Toxicology
- Texas A&M University
- College station
- USA
- Department of Nutrition and Food Science
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27
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Salim H, Zong D, Hååg P, Novak M, Mörk B, Lewensohn R, Lundholm L, Viktorsson K. DKK1 is a potential novel mediator of cisplatin-refractoriness in non-small cell lung cancer cell lines. BMC Cancer 2015; 15:628. [PMID: 26353782 PMCID: PMC4565013 DOI: 10.1186/s12885-015-1635-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 09/01/2015] [Indexed: 12/30/2022] Open
Abstract
Background Platinum compounds are the mainstay of chemotherapy for lung cancer. Unfortunately treatment failure remains a critical issue since about 60 % of all non-small cell lung cancer (NSCLC) patients display intrinsic platinum resistance. Methods We analyzed global gene expression profiles of NSCLC clones surviving a pulse treatment with cisplatin and mapped deregulated signaling networks in silico by Ingenuity Pathway Analysis (IPA). Further validation was done using siRNA. Results The pooled cisplatin-surviving NSCLC clones from each of the biological replicates demonstrated heterogeneous gene expression patterns both in terms of the number and the identity of the altered genes. Genes involved in Wnt signaling pathway (Dickkopf-1, DKK1), DNA repair machinery (XRCC2) and cell-cell/cell-matrix interaction (FMN1, LGALS9) were among the top deregulated genes by microarray in these replicates and were validated by q-RT-PCR. We focused on DKK1 which previously was reported to be overexpressed in NSCLC patients. IPA network analysis revealed coordinate up-regulation of several DKK1 transcriptional regulators (TCF4, EZH2, DNAJB6 and HDAC2) in cisplatin-surviving clones from that biological replicate. Knockdown of DKK1 by siRNA sensitized for cisplatin in two different NSCLC cell lines and in ovarian A2780 cells, but not in the A2780 cis subline made resistant to cisplatin by chronic exposure, suggesting a role of DKK1 in intrinsic but not acquired platinum refractoriness. Conclusions We identified DKK1 as a possible marker of a cisplatin-refractory phenotype and as a potential novel therapeutic target to improve platinum response of NSCLC cells. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1635-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hogir Salim
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Dali Zong
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Petra Hååg
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Metka Novak
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Birgitta Mörk
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Rolf Lewensohn
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Lovisa Lundholm
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Kristina Viktorsson
- Karolinska Biomics Center, Department of Oncology-Pathology, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
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Li T, Wang G. Computer-aided targeting of the PI3K/Akt/mTOR pathway: toxicity reduction and therapeutic opportunities. Int J Mol Sci 2014; 15:18856-91. [PMID: 25334061 PMCID: PMC4227251 DOI: 10.3390/ijms151018856] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 09/21/2014] [Accepted: 10/08/2014] [Indexed: 12/14/2022] Open
Abstract
The PI3K/Akt/mTOR pathway plays an essential role in a wide range of biological functions, including metabolism, macromolecular synthesis, cell growth, proliferation and survival. Its versatility, however, makes it a conspicuous target of many pathogens; and the consequential deregulations of this pathway often lead to complications, such as tumorigenesis, type 2 diabetes and cardiovascular diseases. Molecular targeted therapy, aimed at modulating the deregulated pathway, holds great promise for controlling these diseases, though side effects may be inevitable, given the ubiquity of the pathway in cell functions. Here, we review a variety of factors found to modulate the PI3K/Akt/mTOR pathway, including gene mutations, certain metabolites, inflammatory factors, chemical toxicants, drugs found to rectify the pathway, as well as viruses that hijack the pathway for their own synthetic purposes. Furthermore, this evidence of PI3K/Akt/mTOR pathway alteration and related pathogenesis has inspired the exploration of computer-aided targeting of this pathway to optimize therapeutic strategies. Herein, we discuss several possible options, using computer-aided targeting, to reduce the toxicity of molecularly-targeted therapy, including mathematical modeling, to reveal system-level control mechanisms and to confer a low-dosage combination therapy, the potential of PP2A as a therapeutic target, the formulation of parameters to identify patients who would most benefit from specific targeted therapies and molecular dynamics simulations and docking studies to discover drugs that are isoform specific or mutation selective so as to avoid undesired broad inhibitions. We hope this review will stimulate novel ideas for pharmaceutical discovery and deepen our understanding of curability and toxicity by targeting the PI3K/Akt/mTOR pathway.
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Affiliation(s)
- Tan Li
- Department of Biology, South University of Science and Technology of China, 1088 Xueyuan Rd., Shenzhen 518055, China.
| | - Guanyu Wang
- Department of Biology, South University of Science and Technology of China, 1088 Xueyuan Rd., Shenzhen 518055, China.
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Cho SH, Park MH, Lee HP, Back MK, Sung HC, Chang HW, Kim JH, Jeong HS, Han SB, Hong JT. (E)-2,4-Bis(p-hydroxyphenyl)-2-butenal enhanced TRAIL-induced apoptosis in ovarian cancer cells through downregulation of NF-κB/STAT3 pathway. Arch Pharm Res 2014; 37:652-61. [PMID: 24390815 DOI: 10.1007/s12272-013-0326-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 12/24/2013] [Indexed: 12/13/2022]
Abstract
Ovarian cancer is a cancerous growth arising from the ovary and with poor prognosis that usually have resistant to all currently available treatments. Whether (E)-2,4-bis(p-hydroxyphenyl)-2-butenal (butenal) synthesized by Maillard reaction from fructose-tyrosine, has potential therapeutic activity against human ovarian cancer was investigated using two ovarian cancer cell lines (PA-1, SK-OV-3). We found that butenal could inhibit NF-κB/STAT3 activity, thereby inducing apoptotic cell death of ovarian cancer cells. We treated with several concentration of butenal each cell line differently (PA-1; 5, 10 and 15 μg/ml, SK-OV-3; 10, 20 and 30 μg/ml). First, ovarian cancer cell lines exhibited constitutively active NF-κB, and treatment with butenal abolished this activation as indicated by DNA binding activity. Second, butenal suppressed activation of signal transducer and activator of transcription-3 as indicated by decreased phosphorylation and inhibition of Janus kinase-2 phosphorylation. Third, butenal induced expression of pro-apoptotic proteins such as proteolytic cleavage of PARP, Bax and activation of caspase-3, -8 and -9. Lastly, combination of butenal and TRAIL causes enhanced induction of apoptosis. Overall, our results indicate that butenal mediates its anti-proliferative and apoptotic effects through activation of multiple cell signaling pathways and enhances the TRAIL-induced apoptosis. These data suggested that butenal may be a potential anti-cancer agent in ovarian cancer.
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Affiliation(s)
- Seung Hee Cho
- College of Pharmacy, Medical Research Center, Chungbuk National University, 12, Gaeshin-dong, Heungduk-gu, Ch'ongju, 361-763, Chungbuk, Korea
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