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https://www.readbyqxmd.com/read/29352431/analysis-and-comparison-of-the-8th-edition-american-joint-committee-on-cancer-ajcc-nodal-staging-system-in-cutaneous-and-oral-squamous-cell-cancer-of-the-head-and-neck
#1
Nikolaus Moeckelmann, Ardalan Ebrahimi, Richard Dirven, Jessica Liu, Tsu-Hui Hubert Low, Ruta Gupta, Bruce Ashford, Sydney Ch'ng, Carsten E Palme, Jonathan R Clark
BACKGROUND: The American Joint Committee on Cancer (AJCC) uses the same nodal staging system for cutaneous and mucosal squamous cell carcinoma of the head and neck in its 8th edition (AJCC 8) despite differences in the etiology, risk factors, and clinical behavior of the two diseases. This study aims to evaluate the performance of the AJCC 8 nodal staging system by direct comparison of cutaneous (cSCC) versus oral squamous cell carcinoma (oSCC) patients. METHODS: Patients with metastatic cSCC (N = 382) and oSCC (N = 325) were identified from a prospective database (years 1987-2016)...
January 19, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29352166/epstein-barr-virus-encoded-latent-membrane-protein-1-suppresses-necroptosis-through-targeting-ripk1-3-ubiquitination
#2
Xiaolan Liu, Yueshuo Li, Songling Peng, Xinfang Yu, Wei Li, Feng Shi, Xiangjian Luo, Min Tang, Zheqiong Tan, A M Bode, Ya Cao
Necroptosis is an alternative programmed cell death pathway that is unleashed in the absence of apoptosis and mediated by signaling complexes containing receptor-interating protein kinase 1 (RIPK1) and RIPK3. This form of cell death has recently been implicated in host defense system to eliminate pathogen-infected cells. However, only a few viral species such as herpes simplex virus (HSV) and cytomegalovirus (CMV) have evolved mechanisms inhibiting necroptosis to overcome host antiviral defense, which is important for successful pathogenesis...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29351916/pathways-impacted-by-genomic-alterations-in-pulmonary-carcinoid-tumors
#3
Michael K Asiedu, Charles F Thomas, Jie Dong, Sandra C Schulte Tomaszek, Prasidda Khadka, Zhifu Sun, Farhad Kosari, Jin Jen, Julian R Molina, George Vasmatzis, Rui Kuang, Marie Christine Aubry, Ping Yang, Dennis A Wigle
PURPOSE: Pulmonary carcinoid tumors account for up to 5% of all lung malignancies in adults, comprise 30% of all carcinoid malignancies, and are defined histologically as typical carcinoid (TC) and atypical carcinoid (AC) tumors. The role of specific genomic alterations in the pathogenesis of pulmonary carcinoid tumors remains poorly understood. We sought to identify genomic alterations and pathways that are deregulated in these tumors to find novel therapeutic targets for pulmonary carcinoid tumors...
January 19, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29351612/a-mutational-signature-associated-with-alcohol-consumption-and-prognostically-significantly-mutated-driver-genes-in-esophageal-squamous-cell-carcinoma
#4
X C Li, M Y Wang, M Yang, H J Dai, B F Zhang, W Wang, X L Chu, X Wang, H Zheng, R F Niu, W Zhang, K X Chen
Background: Esophageal squamous cell carcinoma (ESCC) is often diagnosed at an advanced and incurable stage. Information on driver genes and prognosticators in ESCC remains incomplete. The objective was to elucidate significantly mutated genes (SMGs), mutational signatures, and prognosticators in ESCC. Patients and Methods: Three MutSig algorithms (i.e. MutSigCV, MutSigCL and MutSigFN) and "20/20+" ratio-metric were employed to identify SMGs. Nonnegative matrix factorization was used to decipher mutational signatures...
January 16, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29351293/fibroblast-growth-factor-receptor-1-amplification-in-laryngeal-squamous-cell-carcinoma
#5
Jesus Monico, Brandon Miller, Luminita Rezeanu, Warren May, Donna C Sullivan
Fibroblast growth factor receptor 1 (FGFR1) has been noted to be amplified in a variety of squamous cell carcinomas (SCCa) of the head, neck, and lung and increased copy number (CN) is a predictor of poor outcomes. FGFR1 is a therapeutic target for lung SCCa and inhibition therapy is currently in clinical trials. Absolute quantification of FGFR1 from formalin fixed paraffin embedded (FFPE) tissue of laryngeal SCCa was examined in this retrospective study. A droplet digital polymerase chain reaction (ddPCR) was used for absolute quantitation of the FGFR1 gene CN...
2018: PloS One
https://www.readbyqxmd.com/read/29351089/aggressive-variants-of-papillary-thyroid-carcinoma-hobnail-tall-cell-columnar-and-solid
#6
Meryl C Nath, Lori A Erickson
Papillary thyroid carcinomas are the most common endocrine cancer and are usually associated with good survival. However, some variants of papillary thyroid carcinomas may behave more aggressively than classic papillary thyroid carcinomas. The tall cell variant of papillary thyroid carcinoma is the most common aggressive variant of papillary thyroid carcinoma. The aggressive behavior has been ascribed to the histologic subtype and/or to the clinicopathologic features, an issue that remains controversial. The columnar variant of papillary thyroid carcinoma can be aggressive, particularly in older patients, with larger tumors showing a diffusely infiltrative growth pattern and extrathyroidal extension...
January 18, 2018: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/29350326/oxyresveratrol-prevents-murine-h22-hepatocellular-carcinoma-growth-and-lymph-node-metastasis-via-inhibiting-tumor-angiogenesis-and-lymphangiogenesis
#7
Yuanqi Liu, Wei Ren, Yang Bai, Lihong Wan, Xiaodong Sun, Yin Liu, Wenbi Xiong, Yuan-Yuan Zhang, Liming Zhou
The purpose of this study was to investigate the effects and mechanisms of oxyresveratrol (Oxyres) on hepatocellular carcinoma (HCC) in vitro and in vivo. The MTT and Transwell assays were performed to investigate the effects of Oxyres on cell proliferation and migration of two HCC cell lines, QGY-7701 and SMMC-7721 cells. H22 cells were subcutaneously injected into hind foot pads of 70 male mice to establish a lymph node metastasis model. These mice were randomly divided into seven groups as follows, control group, HCC group, Oxyres 20 mg/kg group, Oxyres 40 mg/kg group, Oxyres 60 mg/kg group, Resveratrol (Res) group, and Adriamycin (ADM) group...
January 19, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29348891/clinicopathological-impacts-of-high-c-met-expression-in-head-and-neck-squamous-cell-carcinoma-a-meta-analysis-and-review
#8
Jung Han Kim, Bum Jun Kim, Hyeong Su Kim
High c-Met expression has been observed in head and neck squamous cell carcinoma (HNSCC). However, its clinicopathological impact remains controversial. We performed this meta-analysis to evaluate the pathologic and prognostic impacts of c-Met overexpression in patients with HNSCC. A systematic computerized search of the electronic databases was carried out. From 16 studies, 1,948 patients with HNSCC were included in the meta-analysis. Compared with HNSCCs showing low c-Met expression, tumors with high c-Met expression were significantly associated with higher rate of lymph node metastasis (odds ratio = 3...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348850/novel-indazole-based-small-compounds-enhance-trail-induced-apoptosis-by-inhibiting-the-mkk7-tiprl-interaction-in-hepatocellular-carcinoma
#9
Ji-Yong Yoon, Jeong-Ju Lee, Sujin Gu, Myoung Eun Jung, Hyun-Soo Cho, Jung Hwa Lim, Soo Young Jun, Jun-Ho Ahn, Ju-Sik Min, Min-Hyuk Choi, Su-Jin Jeon, Yong-Jae Lee, Areum Go, Yun-Jeong Heo, Cho-Rok Jung, Gildon Choi, Kwangho Lee, Moon-Kook Jeon, Nam-Soon Kim
Hepatocellular carcinoma (HCC) is one of the most malignant tumors. Although various treatments, such as surgery and chemotherapy, have been developed, a novel alternative therapeutic approach for HCC therapy is urgently needed. Tumor necrosis factor-related apoptosis inducing ligand (TRAIL) is a promising anti-cancer agent, but many cancer cells are resistant to TRAIL-induced apoptosis. To help overcome TRAIL resistance in HCC cancer cells, we have identified novel chemical compounds that act as TRAIL sensitizers...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348488/interferon-alpha-enhances-the-antitumour-activity-of-egfr-targeted-therapies-by-upregulating-rig-i-in-head-and-neck-squamous-cell-carcinoma
#10
Hailong Ma, Shufang Jin, Wenyi Yang, Ge Zhou, Mei Zhao, Sijie Fang, Zhiyuan Zhang, Jingzhou Hu
BACKGROUND: The epidermal growth factor receptor (EGFR)-targeted therapies have been tested in the clinic as treatments for head and neck squamous cell carcinoma (HNSCC). Owing to intrinsic or acquired resistance, EGFR-targeted therapies often lead to a low response rate and treatment failure. Interferon-alpha (IFNα) is a chemosensitising agent and multi-functional cytokine with a tumour inhibitory effect. However, the synergic effect of IFNα and EGFR-targeted therapies (erlotinib and nimotuzumab) and their mechanisms in HNSCC remain unclear...
January 18, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29348431/a-synthetic-combinatorial-approach-to-disabling-deviant-hedgehog-signaling
#11
C-W Fan, N Yarravarapu, H Shi, O Kulak, J Kim, C Chen, L Lum
Mutations in components of the Hedgehog (HH) signal transduction pathway are found in the majority of basal cell carcinoma (BCC) and medulloblastoma incidents. Cancerous cells with intrinsic or acquired resistance to antagonists targeting the seven transmembrane effector Smoothened (SMO) frequently invoke alternative mechanisms for maintaining deviant activity of the GLI DNA binding proteins. Here we introduce a chemical agent that simultaneously achieves inhibition of SMO and GLI activity by direct targeting of the SMO heptahelical domain and the GLI-modifying enzymes belonging to the histone deacetylase (HDAC) family...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29347993/updated-efficacy-of-avelumab-in-patients-with-previously-treated-metastatic-merkel-cell-carcinoma-after-%C3%A2-1%C3%A2-year-of-follow-up-javelin-merkel-200-a-phase-2-clinical-trial
#12
Howard L Kaufman, Jeffery S Russell, Omid Hamid, Shailender Bhatia, Patrick Terheyden, Sandra P D'Angelo, Kent C Shih, Céleste Lebbé, Michele Milella, Isaac Brownell, Karl D Lewis, Jochen H Lorch, Anja von Heydebreck, Meliessa Hennessy, Paul Nghiem
BACKGROUND: Merkel cell carcinoma (MCC) is a rare, aggressive skin cancer associated with poor survival outcomes in patients with distant metastatic disease (mMCC). In an initial analysis from JAVELIN Merkel 200, a phase 2, prospective, open-label, single-arm trial in mMCC, avelumab-a human anti-programmed death-ligand 1 (PD-L1) monoclonal antibody-showed promising efficacy and a safety profile that was generally manageable and tolerable. Here, we report the efficacy of avelumab after ≥1 year of follow-up in patients with distant mMCC that had progressed following prior chemotherapy for metastatic disease...
January 19, 2018: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/29346507/activity-and-safety-of-afatinib-in-a-window-pre-operative-eortc-study-in-patients-with-squamous-cell-carcinoma-of-the-head-and-neck-scchn
#13
J P Machiels, P Bossi, J Menis, M Lia, C Fortpied, Y Liu, R Lhommel, M Lemort, S Schmitz, S Canevari, L De Cecco, M Guzzo, R Bianchi, P Quattrone, F Crippa, T Duprez, Y Lalami, M Quiriny, N de Saint Aubain, P M Clement, R Coropciuc, E Hauben, L F Licitra
Background: To investigate the activity and safety of afatinib in the pre-operative treatment of squamous cell carcinoma of the head and neck (SCCHN). Patients and methods: This study was an open-label, randomized, multicenter, phase II window of opportunity trial. Treatment-naïve SCCHN patients selected for primary curative surgery were randomized (5:1 ratio) to receive afatinib during 14 days (day -15 until day -1) before surgery (day 0) or no treatment. Tumor biopsies, 2-[fluorine-18]-fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET), and magnetic resonance imaging (MRI) were performed at diagnosis and just before surgery...
January 15, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29346329/anti-phytopathogenic-and-cytotoxic-activities-of-crude-extracts-and-secondary-metabolites-of-marine-derived-fungi
#14
Dong-Lin Zhao, Dan Wang, Xue-Ying Tian, Fei Cao, Yi-Qiang Li, Cheng-Sheng Zhang
Thirty-one isolates belonging to eight genera in seven orders were identified from 141 strains that were isolated from several marine plants. Alternaria sp. and Fusarium sp. were found to be the predominant fungi. Evaluation of the anti-phytopathogenic bacterial and fungal activities, as well as the cytotoxicity of these 31 extracts, revealed that most of them displayed different levels of bioactivities. Due to their interesting bioactivities, two fungal strains-Fusarium equiseti (P18) and Alternaria sp. (P8)-were selected for chemical investigation and compounds 1-4 were obtained...
January 18, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29345456/pre-occupation-of-empty-carriers-decreases-endo-lysosome-escape-and-reduces-the-protein-delivery-efficiency-of-mesoporous-silica-nanoparticles
#15
Wenqing Li, Liping Sun, Yiqiu Xia, Si-Jie Hao, Gong Cheng, Zhigang Wang, Yuan Wan, Chuandong Zhu, Hongzhang He, Si-Yang Zheng
Endo/lysosome escape is a major challenge in nanoparticles-based protein delivery for cancer therapy. To enhance endo/lysosomal escape and increase the efficacy of proteins delivery, current strategies mainly focuses on destroying endo/lysosomes by employing modified nanoparticles, such as pH-sensitive polyplexes, cell-penetrating peptides, and photosensitive molecules. Herein, we hypothesize that pre-treatment with empty nanocarriers might make endo/lysosomes occupied and affect the endo/lysosomal escape of subsequent protein delivery by nanocarriers...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29345291/microrna-1271-functions-as-a-metastasis-and-epithelial-mesenchymal-transition-inhibitor-in-human-hcc-by-targeting-the-ptp4a1-c-src-axis
#16
Chao Li, Yezhen Jiang, Runchen Miao, Kai Qu, Jingyao Zhang, Chang Liu
MicroRNAs (miRNAs or miRs) have been shown to regulate hepatocellular carcinoma (HCC) metastasis. In the present study, we focused on the functions of miR-1271 in HCC metastasis. The downregulation of miR-1271 was found to be associated with to venous infiltration, an advanced TNM stage (III+IV stage) and a shorter survival time. Our in vitro and in vivo data demonstrated that miR-1271 prevented HCC cell migration and invasion, as well as the formation of lung metastatic clusters. In addition, miR-1271 was demonstrated to markedly inhibit the epithelial-mesenchymal transition (EMT) of HCC cells...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29344654/tunicamycin-inhibits-colon-carcinoma-growth-and-aggressiveness-via-modulation-of-the-erk-jnk-mediated-akt-mtor-signaling-pathway
#17
Shuping You, Weihong Li, Yun Guan
Epidemiology and evidence have demonstrated that colon carcinoma is one of the most common gastrointestinal tumors in the clinic. Reports have suggested that Tunicamycin significantly inhibits aggressiveness of colon carcinoma cells by promotion of apoptosis. In the present study, the inhibitory effect of tunicamycin on colon cancer cells and the potential underlying molecular mechanism was investigated. Western blotting, immunohistochemistry, apoptotic assays and immunofluorescence were used to analyze the therapeutic effects of tunicamycin on apoptosis, growth, aggressiveness and cell cycle of colon tumor cells, by downregulation of fibronectin, vimentin and E‑cadherin expression levels...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344644/inactivation-of-dna-pk-by-knockdown-dna-pkcs-or-nu7441-impairs-non-homologous-end-joining-of-radiation-induced-double-strand-break-repair
#18
Jun Dong, Yufeng Ren, Tian Zhang, Zhenyu Wang, Clifton C Ling, Gloria C Li, Fuqiu He, Chengtao Wang, Bixiu Wen
The DNA-dependent protein kinase (DNA-PK) complex plays a pivotal role in non-homologous end-joining (NHEJ) repair. We investigated the mechanism of NU7441, a highly selective DNA-PK inhibitor, in NHEJ-competent mouse embryonic fibroblast (MEF) cells and NHEJ-deficient cells and explored the feasibility of its application in radiosensitizing nasopharyngeal carcinoma (NPC) cells. We generated wild-type and DNA-PKcs-/- MEF cells. Clonogenic survival assays, flow cytometry, and immunoblotting were performed to study the effect of NU7441 on survival, cell cycle, and DNA repair...
January 16, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29344638/garcinone-c-exerts-antitumor-activity-by-modulating-the-expression-of-atr-stat3-4e%C3%A2-bp1-in-nasopharyngeal-carcinoma-cells
#19
Yudui Xia, Xia Liu, Chunlin Zou, Shixiu Feng, Hongwei Guo, Yeguo Yang, Yong Lei, Jian Zhang, Yi Lu
Nasopharyngeal carcinoma (NPC) is one of the most common head and neck malignancies and is typically treated with radiotherapy and chemotherapy. Garcinone C, a natural compound isolated from Garcinia oblongifolia Champ., is a xanthone derivative with potential cytotoxic effects on certain cancers. However, there are limited studies regarding its effects on NPC cells, and its mechanism of action in NPC remains unknown. In the present study, we found that garcinone C significantly inhibited cell viability of the human NPC cell lines CNE1, CNE2, HK1 and HONE1...
January 16, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29344481/choroidal-melanoma-mimicker-a-case-of-metastatic-clear-cell-renal-cell-carcinoma
#20
Chris B Komanski, Shaina M Rubino, Jacob C Meyer, Craig M Greven
Choroidal melanoma is the most common primary intraocular malignancy, yet metastatic disease remains the most common malignancy of the eye. Differentiating these entities is essential as treatment, systemic associations, and prognosis vary dramatically between the two. Established diagnostic criteria are accurate for the diagnosis of uveal melanoma. Yet, metastatic disease may be misdiagnosed as a uveal melanoma in rare cases. We report a case of metastatic clear-cell renal cell carcinoma masquerading as uveal melanoma...
November 2017: Ocular Oncology and Pathology
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