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Pathology Oncology Research: POR

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https://www.readbyqxmd.com/read/30242560/association-between-genetic-polymorphisms-in-superoxide-dismutase-gene-family-and-risk-of-gastric-cancer
#1
Alireza Eftekhari, Zahra Peivand, Iraj Saadat, Mostafa Saadat
To determine the association between the SOD1 (Ins/Del), SOD2 (rs2758339, rs5746136), and SOD3 (rs2536512) polymorphisms and the risk of gastric cancer the present study performed. This is a case-control study, including 159 patients with gastric cancer and 242 healthy controls. All subjects were Persian Muslims living in Shiraz (south west Iran). Frequency matching by age and gender was performed. Genomic DNA was extracted from whole blood. Genotypes of the study polymorphism were determined using polymerase chain reaction based methods...
September 21, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30232703/clinical-parameters-for-predicting-the-survival-in-patients-with-squamous-and-non-squamous-cell-nsclc-receiving-pd-1-inhibitor-therapy
#2
Minehiko Inomata, Takahiro Hirai, Zenta Seto, Kotaro Tokui, Chihiro Taka, Seisuke Okazawa, Kenta Kambara, Tomomi Ichikawa, Shingo Imanishi, Toru Yamada, Toshiro Miwa, Ryuji Hayashi, Kazuyuki Tobe
We explored the associations between progression-free survival (PFS) after the initiation of PD-1 inhibitor therapy and the clinical parameters in patients with NSCLC. We reviewed the clinical data of patients with NSCLC treated with PD-1 inhibitor. Data of a total of 36 patients, including 16 patients with squamous cell NSCLC and 20 patients with non-squamous cell NSCLC were reviewed. Multivariate analyses identified EGFR status, C-reactive protein (CRP), and PFS following previous therapy as being significantly associated with the PFS after initiation of PD-1 inhibitor therapy in patients with NSCLC...
September 19, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30229380/suppression-of-angiotensin-1-7-on-the-disruption-of-blood-brain-barrier-in-rat-of-brain-glioma
#3
Xiaohui Li, Xinjun Wang, Jingwei Xie, Bo Liang, Jianheng Wu
Glioblastoma multiforme (GBM) is the most primary brain tumor, specially characterized with the damage of blood-brain barrier (BBB). The Ang-(1-7) was proven to have an inhibitory effect on glioblastoma growth. However, its role on blood-brain barrier (BBB) and the underlying molecular mechanism remains unclear. In this study, Ang-(1-7) significantly relieved the damage of blood-brain barrier in rats with intracranial U87 gliomas as evaluated by magnetic resonance imaging (MRI). Furthermore, its treatment attenuated BBB permeability, tumor growth and edema formation...
September 18, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30225784/the-clinicopathological-and-molecular-associations-of-pd-l1-expression-in-non-small-cell-lung-cancer-analysis-of-a-series-of-10-005-cases-tested-with-the-22c3-assay
#4
Matthew Evans, Brendan O'Sullivan, Frances Hughes, Tina Mullis, Matthew Smith, Nicola Trim, Philippe Taniere
PD-L1 expression testing is mandatory prior to pembrolizumab prescription in non-small cell lung cancer. Our service offers PD-L1 testing using the PD-L1 IHC 22C3 pharmDx assay, in parallel with EGFR, ALK, ROS1 and (in some cases) KRAS testing. We correlate PD-L1 expression in 10,005 tumours with patient age and sex, with tumour histological subtypes, with the sampling modality and type of tissue, and with the presence of other molecular alterations. PD-L1 expression testing was performed using the aforementioned assay; tumour proportion scores (TPS) of 1 and 50% were taken as cut-offs for low and high positivity, respectively...
September 17, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30225783/biomarkers-associated-with-clinical-outcome-of-advanced-melanoma-patients-treated-with-ipilimumab
#5
Tímea Balatoni, Andrea Ladányi, Georgina Fröhlich, Kata Czirbesz, Péter Kovács, Gitta Pánczél, Eszter Bence, Vanda Plótár, Gabriella Liszkay
Ipilimumab was the first immunotherapy approved for metastatic melanoma in decades and is currently registered as a second-line treatment. However, new immunotherapies, in combination with ipilimumab, offer even better clinical outcomes for patients compared with single-agent treatments, at the expense of improved toxicity. The aim of this study was to evaluate the feasibility of ipilimumab outside the clinical trials and to identify survival predictors for treatment benefit. Data were collected on 47 advanced melanoma patients treated with ipilimumab between 2010 and 2015 at a single center...
September 17, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30220022/systems-oncology-bridging-pancreatic-and-castrate-resistant-prostate-cancer
#6
REVIEW
A Fucic, A Aghajanyan, Z Culig, N Le Novere
Large investments by pharmaceutical companies in the development of new antineoplastic drugs have not been resulting in adequate advances of new therapies. Despite the introduction of new methods, technologies, translational medicine and bioinformatics, the usage of collected knowledge is unsatisfactory. In this paper, using examples of pancreatic ductal adenocarcinoma (PaC) and castrate-resistant prostate cancer (CRPC), we proposed a concept showing that, in order to improve applicability of current knowledge in oncology, the re-clustering of clinical and scientific data is crucial...
September 16, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30220021/expression-of-microrna-150-and-its-target-gene-igf2bp1-in-human-osteosarcoma-and-their-clinical-implications
#7
Lei Wang, Ailixiati Aireti, Aizezi Aihaiti, Kun Li
Previous study revealed that microRNA (miR)-150 might function as a tumor suppressor in osteosarcoma partially by targeting Insulin-Like Growth Factor 2 mRNA-Binding Protein 1 (IGF2BP1). The aim of this study was to investigate the clinical significance of miR-150-IGF2BP1 axis in human osteosarcoma which remains unclear. At first, expression levels of miR-150, and IGF2BP1 mRNA and protein in 20 osteosarcoma and matched adjacent noncancerous tissues were respectively detected by quantitative real-time PCR and western blot analyses...
September 15, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30215163/the-relationship-of-the-tlr9-and-tlr2-genetic-polymorphisms-with-cervical-cancer-risk-a-meta-analysis-of-case-control-studies
#8
Shasha Yang, Lan Liu, Dongyuan Xu, Xiangdan Li
This meta-analysis aimed to assess the association of common TLR9 and TLR2 gene polymorphisms (TLR9 1486 T/C, TLR9 G2848A, and TLR2-196 to -174 del/ins) with cervical cancer risk. Studies were searched in Scopus, Pubmed, Embase, and CNKI until December 2017. Both fixed-effects and random-effects models were applied to combine odds ratio (OR) and 95% confidence intervals (95% CI). A total of 11 studies including 7856 participants were identified. The pooled estimation revealed an increased risk of cervical cancer in Caucasian subjects carrying the C allele of the TLR9 1486 T/C polymorphism (OR = 1...
September 13, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30203167/absence-of-promoter-mutation-in-tbc1d12-gene-in-solid-and-hematologic-neoplasia
#9
LETTER
Hyun Ji Son, Min Sung Kim, Nam Jin Yoo, Sug Hyung Lee
No abstract text is available yet for this article.
September 10, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30191377/rab23-promotes-hepatocellular-carcinoma-cell-migration-via-rac1-tgf-%C3%AE-signaling
#10
Li Zhang, Bingqiang Zhang, Wenxian You, Pan Li, Youlin Kuang
Rab23 is a member of Ras-related small GTPase family, which plays a critical role in the progression of wide range of tumors. However, its biological function in hepatocellular carcinoma still remains unclear. Here, we investigated the effects of Rab23 on proliferation and migration in hepatocellular carcinoma cell and its potential mechanisms. We found over-expression of Rab23 promoted the Hep3B hepatocellular carcinoma cell migration, which could be reversed by Rab23 silencing. Rab23 induced Rac1 activation and followed progression of epithelial-mesenchymal transition (EMT) along with upregulation of N-cadherin, snail as well as vimentin and downregulation of E-cadherin via upregulating Transforming Growth Factor-β (TGF-β)...
September 6, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30187215/ki67-and-p53-in-relation-to-disease-progression-in-metastatic-pancreatic-cancer-a-single-institution-analysis
#11
Sally Temraz, Ali Shamseddine, Deborah Mukherji, Maya Charafeddine, Arafat Tfayli, Hazem Assi, Miza Salim Hammoud, Iman Makki, Samer Nassif
We investigated the expression patterns of Ki67 and p53 in metastatic pancreatic adenocarcinomas and analyzed their relationship with disease progression-free survival (PFS) and overall survival (OS) in the overall study population and in patients treated with a gemcitabine-containing chemotherapy versus FOLFIRINOX chemotherapy. Patients with histologically confirmed stage IV adenocarcinoma of the pancreas treated at AUBMC were included after obtaining institutional review board approval (IRB ID: IM.ST.05)...
September 5, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30141114/non-coding-rna-pvt1-promotes-cancer-stem-cell-like-traits-in-nasopharyngeal-cancer-via-inhibiting-mir-1207
#12
Meng Cui, Yu Chang, Qi-Gen Fang, Wei Du, Jun-Fu Wu, Ji-Heng Wang, Shan-Ting Liu, Su-Xia Luo
Nasopharyngeal carcinoma (NPC) is a kind of head-neck malignant tumor. lncRNA-PVT1 can promote the proliferation of carcinoma cells, and induce cells to have stem cell-like potentials. However, the function of PVT1 in NPC cells is not clear. The expressions of lncRNA-PVT1 and the expressions of the stem cell markers in NPC tissues or cell lines were investigated by qRT-PCR or western blot. The cell proliferation, and the ability of NPC cells to form spherical, clonal colonies were investigated by MTT assay, colony formation assay, and tumor-sphere formation assay...
August 23, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30109568/chronic-hyperglycaemia-induced-alterations-of-hepatic-stellate-cells-differ-from-the-effect-of-tgfb1-and-point-toward-metabolic-stress
#13
Katalin Kiss, Eszter Regős, Kristóf Rada, Gábor Firneisz, Kornélia Baghy, Ilona Kovalszky
The deleterious effect of hyperglycemia on the biology of the liver is supported by clinical evidence. It can promote the development of fatty liver, liver fibrosis, even liver cancer as complication of diabetes mellitus. As liver fibrosis is the consequence of hepatic stellate cell (HSC) activation, the questions were addressed whether alterations induced by high glucose concentration are directly related to TGFB1 effect, or other mechanisms are activated. In order to obtain information on the response of HSC for high glucose, LX-2 cells (an immortalized human HSC cell lineage) were cultured in 15...
August 14, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30099696/clinical-and-molecular-characterization-of-surgically-treated-oropharynx-squamous-cell-carcinoma-samples
#14
Ana Carolina de Carvalho, Matias Eliseo Melendez, Cristina da Silva Sabato, Edenir Inez Palmero, Lidia Maria Rebolho Batista Arantes, Cristovam Scapulatempo Neto, André Lopes Carvalho
A better understanding of the clinical and molecular features of oropharyngeal squamous cell carcinomas (OPSCC) may help in the development of strategies for a better patient management, improving survival rates. This retrospective study conducted a clinical and molecular characterization of surgically treated OPSCC samples. Paraffin-embedded samples from a series of cases were screened for high-risk (HR) human papillomavirus (HPV) infection, methylation of a 5-gene panel, p53 expression, and TP53 mutation...
August 11, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30094734/large-scale-egfr-mutation-testing-in-clinical-practice-analysis-of-a-series-of-18-920-non-small-cell-lung-cancer-cases
#15
Matthew Evans, Brendan O'Sullivan, Matthew Smith, Frances Hughes, Tina Mullis, Nicola Trim, Philippe Taniere
We make use of a very large dataset of non-small cell lung cancer specimens to examine the molecular epidemiology of EGFR mutations, particularly with respect to rare and compound mutations, and to non-adenocarcinoma histological subtypes. We also demonstrate the feasibility of large-scale EGFR mutation screening using the full range of specimens encountered in routine practice. We retrospectively reviewed 18,920 unselected EGFR mutation results from our centre between July 2009 and October 2016, using Qiagen's therascreen EGFR RGQ PCR Kit...
August 9, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30091007/high-expression-of-phospholipased2-induced-by-hypoxia-promotes-proliferation-of-colon-cancer-cells-through-activating-nf-%C3%AE%C2%BA-bp65-signaling-pathway
#16
Maoxi Liu, Kunli Du, Bo Jiang, Xingye Wu
Hypoxia is a typical feature of colon cancer occurrence and progression. We have reported that high expression and activity of PhospholipaseD2 (PLD2) induced by hypoxia in colon cancer cells. In order to further investigate the role of PLD2 in colon cancer under hypoxic conditions. MTT assay was used to detect the proliferation of human colon cancer cells (SW480 and SW620) under hypoxic conditions by decrease the PLD2 gene expression or inhibit the activity of PLD2. Expression level of p-P65/T-P65 and Cyclin D1 were detected in those cells treated as above through using western blot and RT-PCR analysis...
August 8, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30091006/letter-to-the-editor-regarding-the-article-long-non-coding-rna-spry4-it1-can-predict-poor-prognosis-in-digestive-system-malignancies-a-meta-analysis
#17
LETTER
Peng-Bo Zhang, Jing Cui
No abstract text is available yet for this article.
August 8, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30088132/candidate-tumor-suppressor-gene-eaf2-is-mutated-in-colorectal-and-gastric-cancers
#18
LETTER
Yun Sol Jo, Sung Soo Kim, Min Sung Kim, Nam Jin Yoo, Sug Hyung Lee
No abstract text is available yet for this article.
August 7, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30083911/long-noncoding-rna-pvt1-as-a-novel-predictor-of-metastasis-clinicopathological-characteristics-and-prognosis-in-human-cancers-a-meta-analysis
#19
REVIEW
Congmin Liu, Jing Jin, Di Liang, Zhaoyu Gao, Yachen Zhang, Tiantian Guo, Yutong He
The present meta-analysis aimed to systematically evaluates the metastasis, clinical stage, and prognostic value regarding the expression levels of PVT1 in various cancers. Relevant literatures were searched in PubMed、Cochrane Library、Wed of science、Embase databases、Chinese National Knowledge Infrastructure and Wanfang from inception up to 22 August 2017. After data were extracted, a meta-analysis was performed using Review Manager 5.3 and Stata 12.0 software. The meta-analysis showed that high expression of PVT1 could predict more lymph node metastasis (LNM) (Odds ratio, OR = 2...
August 6, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30066234/predictive-value-of-single-nucleotide-polymorphisms-of-ercc1-xpa-xpc-xpd-and-xpg-genes-involved-in-ner-mechanism-in-patients-with-advanced-nsclc-treated-with-cisplatin-and-gemcitabine
#20
Radosław Mlak, Paweł Krawczyk, Iwona Homa-Mlak, Tomasz Powrózek, Marzanna Ciesielka, Piotr Kozioł, Janusz Milanowski, Teresa Małecka-Massalska
The combination of cisplatin and gemcitabine is still one of the most frequently used first-line chemotherapy scheme in patients with advanced non-small cell lung cancer (NSCLC), in which tyrosine kinase inhibitors (TKIs) cannot be administered. Unfortunately, more than half of the patients have no benefit from chemotherapy but are still exposed to its toxic effects. Therefore, single nucleotide polymorphisms (SNPs) in the genes involved in nucleotide excision repair (NER) mechanism may be a potential predictive factor of efficiency of cytostatic based chemotherapy...
July 31, 2018: Pathology Oncology Research: POR
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