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https://www.readbyqxmd.com/read/28101940/chronic-nasal-exposure-to-nanoparticulate-tio2-causes-pulmonary-tumorigenesis-in-male-mice
#1
Fashui Hong, Li Ji, Yingjun Zhou, Ling Wang
Chronic inhalation bioassays in rodents are used to assess pulmonary carcinogenicity for purposes of hazard identification and potentially for risk characterization. Numerous studies have been confirmed that exposure to titanium dioxide nanoparticles (TiO2 NPs) may result in chronic pulmonary inflammation in both mice and rats. However, very few studies have focused on the pulmonary tumorigenesis. In this study, to examine whether chronic TiO2 NP exposure induce tumorigenesis in the lung, forty mice (each group) were nasally exposed to 1...
January 19, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28101582/aurka-dlgap5-tpx2-kif11-and-ckap5-five-specific-mitosis-associated-genes-correlate-with-poor-prognosis-for-non-small-cell-lung-cancer-patients
#2
Marc A Schneider, Petros Christopoulos, Thomas Muley, Arne Warth, Ursula Klingmueller, Michael Thomas, Felix J F Herth, Hendrik Dienemann, Nikola S Mueller, Fabian Theis, Michael Meister
The growth of a tumor depends to a certain extent on an increase in mitotic events. Key steps during mitosis are the regulated assembly of the spindle apparatus and the separation of the sister chromatids. The microtubule-associated protein Aurora kinase A phosphorylates DLGAP5 in order to correctly segregate the chromatids. Its activity and recruitment to the spindle apparatus is regulated by TPX2. KIF11 and CKAP5 control the correct arrangement of the microtubules and prevent their degradation. In the present study, we investigated the role of these five molecules in non-small cell lung cancer (NSCLC)...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28101568/puerarin-inhibits-m2-polarization-and-metastasis-of-tumor-associated-macrophages-from-nsclc-xenograft-model-via-inactivating-mek-erk-1-2-pathway
#3
Honggang Kang, Jing Zhang, Baozhong Wang, Meirong Liu, Jun Zhao, Mengxiang Yang, Yingxue Li
Non-small cell lung carcinoma (NSCLC) metastasis is responsible for most of cancer-related mortality. The tumor associated macrophages (TAMs) are known to be crucial cells in lung cancer and are usually divided into two antagonistic types, M1 and M2. Puerarin has a wide spectrum of pharmacological properties. The present study explores puerarin on macrophage polarization and metastasis of NSCLC. The results demonstrated that puerarin inhibited tumor growth and tumor volumes in NSCLC xenograft model, increased M1 markers [CD197+, inducible nitric oxide synthase (iNOS)+, CD40+)] and reduced M2 markers (CD206+, Arg-1+ and CD163+)...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28101034/a-case-of-poorly-differentiated-large-cell-neuroendocrine-carcinoma-of-the-cecum-a-rare-malignancy-with-review-of-the-literature
#4
Andrew T Mertz, Michelle A Ojemuyiwa
Poorly differentiated neuroendocrine carcinomas (NECs) are rare tumors that can arise anywhere along the gastrointestinal tract. They often present in advanced stage and portend a poor prognosis when compared to adenocarcinomas of the same stage. Characterization of these tumors is best accomplished with tissue biopsy, as peripheral tumor markers commonly used in NECs are of little utility. Therapeutic strategies often involve chemotherapeutic regimens that have been used to treat small-cell lung cancer. Recent studies have shown that programmed death-ligand 1 (PD-L1) expression within poorly differentiated NECs is a poor prognostic indicator...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/28100713/ahrr-cg05575921-hypomethylation-marks-smoking-behaviour-morbidity-and-mortality
#5
Stig E Bojesen, Nicholas Timpson, Caroline Relton, George Davey Smith, Børge G Nordestgaard
RATIONALE AND OBJECTIVES: Self-reported smoking underestimates disease risk. Smoking affects DNA methylation, in particular the cg05575921 site in the aryl hydrocarbon receptor repressor (AHRR) gene. We tested the hypothesis that AHRR cg05575921 hypomethylation is associated with risk of smoking-related morbidity and mortality. METHODS: From the Copenhagen City Heart Study representing the Danish general population, we studied 9234 individuals. Using bisulphite treated leucocyte DNA, AHRR (cg05575921) methylation was measured...
January 18, 2017: Thorax
https://www.readbyqxmd.com/read/28099079/lymphangioleiomyomatosis-a-monogenic-model-of-malignancy
#6
Vera P Krymskaya, Francis X McCormack
Lymphangioleiomyomatosis (LAM) is a rare, low-grade, metastasizing neoplasm that arises from an unknown source, spreads via the lymphatics, and targets the lungs. All pulmonary structures become infiltrated with benign-appearing spindle and epithelioid cells (LAM cells) that express smooth-muscle and melanocyte-lineage markers, harbor mTOR-activating mutations in tuberous sclerosis complex (TSC) genes, and recruit abundant stromal cells. Elaboration of lymphangiogenic growth factors and matrix remodeling enzymes by LAM cells enables their access to lymphatic channels and likely drives the cystic lung remodeling that often culminates in respiratory failure...
January 14, 2017: Annual Review of Medicine
https://www.readbyqxmd.com/read/28098885/carboxamide-analog-itr-284-evokes-apoptosis-and-inhibits-migration-ability-in-human-lung-adenocarcinoma-a549-cells
#7
Jai-Sing Yang, Chia-An Lin, Chi-Cheng Lu, Yen-Fang Wen, Fuu-Jen Tsai, Shih-Chang Tsai
Lung adenocarcinoma is the most common type of lung cancer and found in both smokers and non-smokers, but the treatment of lung cancer is limited. ITR-284 has been shown to be a potent carboxamide-derived anticancer agent and to induce apoptosis in leukemia and colon cancer cells. However, little is known whether ITR-284 has anticancer activity in human lung adenocarcinoma cells through induction of apoptosis and suppression of migration in vitro. We showed that ITR-284 inhibited human lung cancer A549 cells using the thiazolyl blue tetrazolium bromide (MTT) assay and evoked apoptosis via the cell cycle distribution at S phase arrest...
January 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28093478/long-non-coding-rna-malat1-regulates-cerebrovascular-pathologies-in-ischemic-stroke
#8
Xuejing Zhang, Xuelian Tang, Kai Liu, Milton H Hamblin, Ke-Jie Yin
: The study is designed to determine the role of long non-coding RNA (lncRNA), metastasis associated lung adenocarcinoma transcript 1 (Malat1), in ischemic stroke outcome. Primary mouse brain microvascular endothelial cells (BMECs) were cultured and treated with Malat1 GapmeR prior to 16h oxygen and glucose depravation (OGD). Cell death was assayed by LDH and MTT methods. Malat1 knockout and wildtype mice were subjected to 1h of middle cerebral artery occlusion (MCAO) and 24-72h of reperfusion...
January 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28093084/association-between-dna-mismatch-repair-gene-polymorphisms-and-platinum-based-chemotherapy-toxicity-in-non-small-cell-lung-cancer-patients
#9
Jun-Yan Liu, Chen-Yue Qian, Yuan-Feng Gao, Juan Chen, Hong-Hao Zhou, Ji-Ye Yin
BACKGROUND: Chemotherapy toxicity is a serious problem from which non-small cell lung cancer (NSCLC) patients suffer. The mismatch repair (MMR) system is associated with platinum-based chemotherapy toxicity in NSCLC patients. In this study, we aimed to investigate the relationship between genetic polymorphisms in the MMR pathway and platinum-based chemotherapy toxicity in NSCLC patients. METHODS: A total of 220 Chinese lung cancer patients who received at least two cycles of platinum-based chemotherapy were recruited for this study...
January 16, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28088809/fibroblast-growth-factor-receptor-1-fgfr1-partly-related-to-vascular-endothelial-growth-factor-receptor-2-vegfr2-and-microvessel-density-is-an-independent-prognostic-factor-for-non-small-cell-lung-cancer
#10
Dan Pu, Jiewei Liu, Zhixi Li, Jiang Zhu, Mei Hou
BACKGROUND This study aimed to explore the correlation between FGFR1 and clinical features, including survival analysis and the promotion of angiogenesis by fibroblast growth factor receptor 1 (FGFR1) and vascular endothelial growth factor receptor 2 (VEGFR2). FGFR1 gene amplification has been found in non-small cell lung cancer (NSCLC). However, the prognostic value of FGFR1 and the correlation between FGFR1 and clinical features are still controversial. MATERIAL AND METHODS A total of 92 patients with NSCLC who underwent R0 resection between July 2006 and July 2008 were enrolled in the study...
January 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28087642/stxbp4-drives-tumor-growth-and-is-associated-with-poor-prognosis-through-pdgf-receptor-signaling-in-lung-squamous-cell-carcinoma
#11
Yukihiro Otaka, Susumu Rokudai, Kyoichi Kaira, Michiru Fujieda, Ikuko Horikoshi, Reika Kawabata, Shinji Yoshiyama, Takehiko Yokobori, Yoichi Ohtaki, Kimihiro Shimizu, Tetsunari Oyama, Jun'ichi Tamura, Carol Prives, Masahiko Nishiyama
PURPOSE: Expression of the ΔN isoform of p63 (ΔNp63) is a diagnostic marker highly specific for lung squamous cell carcinoma (SCC). We previously found that Syntaxin Binding Protein 4 (STXBP4) regulates ΔNp63 ubiquitination, suggesting that STXBP4 may also be a SCC biomarker. To address this issue, we investigated the role of STXBP4 expression in SCC biology and the impact of STXBP4 expression on SCC prognosis. EXPERIMENTAL DESIGN: We carried out a clinicopathological analysis of STXBP4 expression in 87 lung SCC patients...
January 13, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28081338/new-immunohistochemical-markers-in-the-differential-diagnosisof-nonsmall-cell-lung-carcinoma
#12
Ferda Bir, Duygu Çeliker, Binnaz Fatma Evyapan, Arzu Yaren, Tamer Edirne
BACKGROUND/AIM: The aim of this study was to investigate Napsin-A, NTRK-1, NTRK-2, Desmoglein-3, and Desmocollin-3 in the differential diagnosis and prognosis of nonsmall cell lung cancer. MATERIALS AND METHODS: The expression of Napsin-A, NTRK-1, NTRK-2, and Desmoglein-3 was examined by immunohistochemistry in 50 squamous cell carcinomas and 50 adenocarcinomas. Desmocollin-3 was investigated in 29 squamous cell carcinoma and 29 adenocarcinoma cases. Associations between expression profiles of Napsin-A, NTRK-1, NTRK-2, Desmoglein-3, and Desmocollin-3 in lung cancers and clinicopathological variables were analyzed...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28078601/inhibition-of-epithelial-mesenchymal-transition-and-metastasis-by-combined-tgfbeta-knockdown-and-metformin-treatment-in-a-canine-mammary-cancer-xenograft-model
#13
Camila Leonel, Thaiz Ferraz Borin, Lívia de Carvalho Ferreira, Marina Gobbe Moschetta, Marcio Chaim Bajgelman, Alicia M Viloria-Petit, Debora Aparecida Pires de Campos Zuccari
Epithelial mesenchymal transition (EMT) is a process by which epithelial cells acquire mesenchymal properties, generating metastases. Transforming growth factor beta (TGF-β) is associated with this malignancy by having the ability to induce EMT. Metformin, has been shown to inhibit EMT in breast cancer cells. Based on this evidence we hypothesize that treatment with metformin and the silencing of TGF-β, inhibits the EMT in cancer cells. Canine metastatic mammary tumor cell line CF41 was stably transduced with a shRNA-lentivirus, reducing expression level of TGF-β1...
January 11, 2017: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/28076862/prognostic-value-of-the-pretreatment-advanced-lung-cancer-inflammation-index-ali-in-diffuse-large-b-cell-lymphoma-patients-treated-with-r-chop-chemotherapy
#14
Young Hoon Park, Hyeon Gyu Yi, Moon Hee Lee, Chul Soo Kim, Joo Han Lim
BACKGROUND: The Advanced Lung Cancer Inflammation Index (ALI, body mass index × albumin/neutrophil-to-lymphocyte ratio) has been demonstrated to be a prognostic factor of survival in some solid cancers. We retrospectively investigated the usefulness of the ALI to predict chemotherapy response and survival in 212 patients with diffuse large B cell lymphoma (DLBCL) treated with R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone) chemotherapy. METHODS: Patients were allocated to a low ALI group (n = 82, 38...
January 12, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28076327/mir-410-induces-stemness-by-inhibiting-gsk3%C3%AE-but-upregulating-%C3%AE-catenin-in-non-small-cells-lung-cancer
#15
Xixian Ke, Yue Yuan, Chenglin Guo, Yan Yang, Qiang Pu, Xueting Hu, Kui Tang, Xinmei Luo, Qianqian Jiang, Xiaolan Su, Lunxu Liu, Wen Zhu, Yuquan Wei
Our previous research indicated miR-410 played a critical role in promoting the tumorigenesis and development of NSCLC (non-small cells lung cancer). MiR-410 has been recently reported to be crucial for development and differentiation of embryonic stem cells. But it remains elusive whether miR-410 stimulates the stemness of cancer until now. Herein, we identify miR-410 induces the stemness and is associated with the progression of NSCLC. We demonstrate miR-410 increases the levels of stem cells marker Sox2, Oct4, Nanog, CXCR4 as well as lung cancer stem cells surface marker CD44 and CD166...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28074012/reduced-abundance-of-the-e3-ubiquitin-ligase-e6ap-contributes-to-decreased-expression-of-the-ink4-arf-locus-in-non-small-cell-lung-cancer
#16
Cristina Gamell, Twishi Gulati, Yaara Levav-Cohen, Richard J Young, Hongdo Do, Pat Pilling, Elena Takano, Neil Watkins, Stephen B Fox, Prudence Russell, Doron Ginsberg, Brendon J Monahan, Gavin Wright, Alex Dobrovic, Sue Haupt, Ben Solomon, Ygal Haupt
The tumor suppressor p16(INK4a), one protein encoded by the INK4/ARF locus, is frequently absent in multiple cancers, including non-small cell lung cancer (NSCLC). Whereas increased methylation of the encoding gene (CDKN2A) accounts for its loss in a third of patients, no molecular explanation exists for the remainder. We unraveled an alternative mechanism for the silencing of the INK4/ARF locus involving the E3 ubiquitin ligase and transcriptional cofactor E6AP (also known as UBE3A). We found that the expression of three tumor suppressor genes encoded in the INK4/ARF locus (p15(INK4b), p16(INK4a), and p19(ARF)) was decreased in E6AP(-/-) mouse embryo fibroblasts...
January 10, 2017: Science Signaling
https://www.readbyqxmd.com/read/28073681/association-of-cytoplasmic-cxcr4-with-loss-of-epithelial-marker-and-activation-of-erk1-2-and-akt-signaling-pathways-in-non-small-cell-lung%C3%A2-cancer
#17
Nabil F Saba, Yuxiang Wang, Hongpeng Fu, Lydia Koenig, Fadlo R Khuri, Dong M Shin, Zhuo Georgia Chen
OBJECTIVES: Compelling evidence demonstrates that CXC-chemokine receptor 4 (CXCR4) is involved in tumor invasion, angiogenesis, metastasis, and resistance to chemotherapy in addition to being one of the coreceptors for T-tropic human immunodeficiency virus entry into T cells. However, it remains controversial as to how to identify functionally activated CXCR4 in tumor biopsies, which would assist in determining which patients may benefit from potential CXCR4-targeted therapy. MATERIALS AND METHODS: Immunohistochemistry (IHC) staining on archival tissues of patients with non-small-cell lung cancer (NSCLC) was used to detect a panel of biomarkers, including phospho-ERK1/2, phospho-AKT, and E-cadherin, which are relevant to downstream signaling of CXCR4 and epithelial to mesenchymal transition (EMT)...
December 22, 2016: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28073170/loss-of-hsef-promotes-metastasis-through-up-regulation-of-emt-in-prostate-cancer
#18
S Hori, K Wadhwa, V Pisupati, V Zecchini, A Ramos-Montoya, A Y Warren, D E Neal, V J Gnanapragasam
We have previously reported that the negative regulator Similar Expression to FGF (hSef) is down-regulated in prostate cancer and its loss is associated with clinical metastasis. Here, we explored the mechanistic basis of this finding. We first confirmed our clinical observation by testing hSef manipulation in an in vivo metastasis model. hSef stable expressing cells (PC3M-hSef) or empty vector controls (PC3M-EV) were injected subcutaneously into the lateral thoracic walls of NOD-SCID gamma mice and lungs were harvested at autopsy...
January 10, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28069800/label-free-raman-spectroscopy-detects-stromal-adaptations-in-premetastatic-lungs-primed-by-breast-cancer
#19
Santosh Kumar Paidi, Asif Rizwan, Chao Zheng, Menglin Cheng, Kristine Glunde, Ishan Barman
Recent advances in animal modeling, imaging technology, and functional genomics have permitted precise molecular observations of the metastatic process. However, a comprehensive understanding of the premetastatic niche remains elusive, owing to the limited tools that can map subtle differences in molecular mediators in organ-specific microenvironments. Here, we report the ability to detect premetastatic changes in the lung microenvironment, in response to primary breast tumors, using a combination of metastatic mouse models, Raman spectroscopy, and multivariate analysis of consistent patterns in molecular expression...
January 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28062694/effective-combination-of-innate-and-adaptive-immunotherapeutic-approaches-in-a-mouse-melanoma-model
#20
Alexander L Rakhmilevich, Mildred Felder, Lauren Lever, Jacob Slowinski, Kayla Rasmussen, Anna Hoefges, Tyler J Van De Voort, Hans Loibner, Alan J Korman, Stephen D Gillies, Paul M Sondel
Most cancer immunotherapies include activation of either innate or adaptive immune responses. We hypothesized that the combined activation of both innate and adaptive immunity will result in better antitumor efficacy. We have previously shown the synergy of an agonistic anti-CD40 mAb (anti-CD40) and CpG-oligodeoxynucleotides in activating macrophages to induce tumor cell killing in mice. Separately, we have shown that a direct intratumoral injection of immunocytokine (IC), an anti-GD2 Ab linked to IL-2, can activate T and NK cells resulting in antitumor effects...
January 6, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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