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Journal of Environmental Pathology, Toxicology and Oncology

年間 4 号発行

ISSN 印刷: 0731-8898

ISSN オンライン: 2162-6537

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 2.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 2.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.5 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00049 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.59 SJR: 0.429 SNIP: 0.507 CiteScore™:: 3.9 H-Index: 49

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Studying the in Silico Effect of Ellagic Acid on HIF-2α to Improve Efficacy of Anticancer Therapy

巻 37, 発行 4, 2018, pp. 331-339
DOI: 10.1615/JEnvironPatholToxicolOncol.2018024654
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要約

The hypoxic tumor microenvironment is one of the major causes of the enhanced chemoresistant and radioresistant behavior of cancer cells. Therefore, the hypoxia-induced factor (HIF) pathway can be endorsed, for not only the malignant phenotype of the cells, but also its metastatic potential. Many drugs targeting the HIF pathways have failed in the clinical setting to demonstrate therapeutic efficacy. Such failures occur due to lack of specificity or redundancy in the complexity of tumor signaling/metabolism that can overcome the inhibitory effects. Another important factor is the letdown of the compound that can be accredited to lack of patient selection in the trials. Although many clinical trials have evaluated the efficacy of anticancer therapeutics and examined their effects on HIF levels, patients were not selected based on their HIF expression levels. If patients do not have elevated levels of HIF, then the therapeutics that target the HIF pathway may be less effective. In the present work, we have targeted HIF-2α of the HIF pathway. Ellagic acid (EA), a well-known anticancer compound and radiosensitizer, is used to inhibit the activity of HIF-2α. Our results show a very unique binding of EA with HIF-2α. Such new agents should be used in combination therapy and will hopefully overcome the resistance that may develop during initial treatment if the patient is identified to have enhanced expression of HIF-2α. Molecular dynamics studies followed solvation free energy calculations (molecular mechanics Poisson-Boltzmann surface area) for understanding the binding stability and per residue contribution. Our in silico data look promising and EA should be studied more in in vitro and in vivo for further analysis of its efficacy.

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