Different inhibitory potential of sex hormones on NNK detoxification in vitro: a possible explanation for gender-specific lung cancer risk

In this study, we examined the inhibition of NNK reduction to NNAL, the first and most important detoxication step of this tobacco-specific carcinogen. It is mediated by different carbonyl reductases of the SDR (CBR1 and 11 βHSD1) and AKR (AKR1B10, AKR1C1, AKR1C2 and AKR1C4) superfamilies. Inhibition constants of NNK reduction were determined with male (testosterone) and female (estradiol, progesterone) sex hormones and the contraceptives ethinylestradiol and drospirenone in A549 cells and with purified enzymes.
Source: Cancer Letters - Category: Cancer & Oncology Authors: Source Type: research

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This study is aimed to screen potential DNA methylation signatures to facilitate the diagnosis and prognosis of LUAD and integrate gene expression and DNA methylation data of LUAD to identify functional epigenetic modules. We systematically integrated gene expression and DNA methylation data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO), bioinformatic models and algorithms were implemented to identify signatures and functional modules for LUAD. Three promising diagnostic and five potential prognostic signatures for LUAD were screened by rigorous filtration, and our tumor-normal classifier and progno...
Source: Genetics and Molecular Biology - Category: Genetics & Stem Cells Source Type: research
MS-assisted lipidomic tissue analysis is a valuable tool to assess sphingolipid metabolism dysfunction in disease. These analyses can reveal potential pharmacological targets or direct mechanistic studies to better understand the molecular underpinnings and influence of sphingolipid metabolism alterations on disease etiology. But procuring sufficient human tissues for adequately powered studies can be challenging. Therefore, biorepositories, which hold large collections of cryopreserved human tissues, are an ideal retrospective source of specimens. However, this resource has been vastly underutilized by lipid biologists, a...
Source: The Journal of Lipid Research - Category: Lipidology Authors: Tags: Methods Source Type: research
Many lung cancer patients are inactive due to their disease and underlying comorbidities, and activity levels can decline further during cancer therapy. Here we explore dosimetric predictors of activity decline in a cohort of patients who underwent continuous activity monitoring during definitive concurrent chemoradiotherapy (CRT) for locally advanced lung cancer.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research
Electric Field Induced Release and Measurement (EFIRM) is a novel, plate based, liquid biopsy platform capable of detecting circulating tumor DNA containing EGFR mutations directly from saliva and plasma in both early and late stage patients with non-small cell lung cancer (NSCLC). We investigated the properties of the target molecule for EFIRM and determined that the platform preferentially detects single stranded DNA molecules. We then investigated the properties of the EFIRM assay and determined the linearity, linear range, precision, and limit of detection, for 6 different EGFR variants (the 4 most common g.
Source: Journal of Molecular Diagnostics - Category: Pathology Authors: Tags: Regular Article Source Type: research
Publication date: Available online 30 May 2020Source: Cancer CellAuthor(s): Abbie S. Ireland, Alexi M. Micinski, David W. Kastner, Bingqian Guo, Sarah J. Wait, Kyle B. Spainhower, Christopher C. Conley, Opal S. Chen, Matthew R. Guthrie, Danny Soltero, Yi Qiao, Xiaomeng Huang, Szabolcs Tarapcsák, Siddhartha Devarakonda, Milind D. Chalishazar, Jason Gertz, Justin C. Moser, Gabor Marth, Sonam Puri, Benjamin L. Witt
Source: Cancer Cell - Category: Cancer & Oncology Source Type: research
Publication date: Available online 31 May 2020Source: Materials Science and Engineering: CAuthor(s): Vineela Parvathaneni, Nishant S. Kulkarni, Gautam Chauhan, Snehal K. Shukla, Rasha Elbatanony, BrijeshKumar Patel, Nitesh K. Kunda, Aaron Muth, Vivek Gupta
Source: Materials Science and Engineering: C - Category: Materials Science Source Type: research
Propofol suppresses the progression of non‑small cell lung cancer via downregulation of the miR‑21‑5p/MAPK10 axis. Oncol Rep. 2020 May 21;: Authors: Wu X, Li X, Xu G Abstract Non‑small cell lung cancer (NSCLC) accounts for>80% of lung cancer cases and is the leading cause of cancer‑associated mortality worldwide. Propofol is an anesthetic drug frequently used during tumor resection. It is also known to exert inhibitory effects on cancer. Although the role of propofol in NSCLC has been reported, its underlying mechanisms remain unknown. The present study aimed therefore to investigate the m...
Source: Oncology Reports - Category: Cancer & Oncology Tags: Oncol Rep Source Type: research
Knockdown of ubiquitin‑specific protease 51 attenuates cisplatin resistance in lung cancer through ubiquitination of zinc‑finger E‑box binding homeobox 1. Mol Med Rep. 2020 May 27;: Authors: Zhou F, Du C, Xu D, Lu J, Zhou L, Wu C, Wu B, Huang J Abstract Lung cancer is a devastating cancer with high morbidity and mortality. Ubiquitin‑specific protease (USP) is a type of deubiquitinating enzyme (DUB) that has been implicated in numerous cancers, including colorectal, myeloma and breast. In the present study, the expression of USP51 was determined in the lung cancer cell line A549 and cisplatin (a...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
Effect of AGER on the biological behavior of non‑small cell lung cancer H1299 cells. Mol Med Rep. 2020 May 22;: Authors: Wang Q, Zhu W, Xiao G, Ding M, Chang J, Liao H Abstract Advanced glycosylation end-product specific receptor (AGER) is a multi-ligand cell surface receptor abnormally expressed in lung cancer, and is a member of the immunoglobulin superfamily. Therefore, this study aimed to explore the effect of AGER on the biological behavior of non‑small cell lung cancer (NSCLC) H1299 cell line. A microarray‑based gene expression profiling analysis of the GSE27262 dataset from the Gene Expres...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
Publication date: Available online 29 May 2020Source: The Lancet Respiratory MedicineAuthor(s): Yi-Long Wu, Ying Cheng, Jianying Zhou, Shun Lu, Yiping Zhang, Jun Zhao, Dong-Wan Kim, Ross Andrew Soo, Sang-We Kim, Hongming Pan, Yuh-Min Chen, Chih-Feng Chian, Xiaoqing Liu, Daniel Shao Weng Tan, Rolf Bruns, Josef Straub, Andreas Johne, Jürgen Scheele, Keunchil Park, James Chih-Hsin Yang
Source: The Lancet Respiratory Medicine - Category: Respiratory Medicine Source Type: research
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