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Pathology Oncology Research: POR

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https://www.readbyqxmd.com/read/29740763/melanotic-schwannoma-two-cases-of-rare-lesions
#1
LETTER
Xiao-Li Li, Shun-Dong Dai
No abstract text is available yet for this article.
May 8, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29730802/seminal-cell-free-dna-assessment-as-a-novel-prostate-cancer-biomarker
#2
Giovanni Ponti, Monia Maccaferri, Mauro Mandrioli, Marco Manfredini, Salvatore Micali, Michele Cotugno, Giampaolo Bianchi, Tomris Ozben, Giovanni Pellacani, Chiara Del Prete, Aldo Tomasi
Cell-free DNA (cfDNA) includes circulating DNA fragments, which can be obtained from different human biological samples. cfDNA originates either from apoptotic and/or necrotic cells or is actively secreted by cancer cells. As yet, a quantification and size distribution assessment of seminal plasma cfDNA from prostate cancer patients has never been assessed. To discover a novel, sensitive, non-invasive biomarker of prostate cancer, through the fluorometric quantification and the electrophoretic analysis of seminal cfDNA in prostate cancer patients compared to healthy individuals...
May 5, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29728978/aspects-of-modern-biobank-activity-comprehensive-review
#3
REVIEW
Wiktor Paskal, Adriana M Paskal, Tomasz Dębski, Maciej Gryziak, Janusz Jaworowski
Biobanks play an increasing role in contemporary research projects. These units meet all requirements to regard them as a one of the most innovative and up-to-date in the field of biomedical research. They enable conducting wide-scale research by the professional collection of biological specimens and correlated clinical data. Pathology units may be perceived roots of biobanking. The review aims at describing the concept of biobanks, their model of function and scientific potential. It comprises the division of biobanks, sample preservation methods and IT solutions as well as guidelines and recommendations for management of a vast number of biological samples and clinical data...
May 5, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29687228/gene-expression-profiles-in-chemokine-c-c-motif-ligand-21-overexpressing-pancreatic-cancer-cells
#4
Kai Cui, Hongsheng Zou, Mingliang Shi, Yang Ou, Lu Han, Bo Zhang, Dawei Hu, Sheng Li
Chemokine (C-C Motif) ligand 21 (CCL21) plays an important role in tumor immunity. However, the molecular mechanisms by which CCL21 regulates tumor immunity remain largely unknown. In this study, we successfully generated a lentiviral vector expressing human CCL21 (Lenti-hCCL21), which was confirmed by biological assays. The Lenti-hCCL21 was transduced into PANC-1 cells, a chemokine (C-C motif) receptor 7 (CCR7)-positive human pancreatic cancer cell line. We used the scratch wound and transwell assays to measure cell migration of the CCL21-overexpressing PANC-1 cells...
April 23, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29623528/a-multi-institutional-validation-of-gleason-score-derived-from-tissue-microarray-cores
#5
Sami-Ramzi Leyh-Bannurah, Dominique Trudel, Mathieu Latour, Emanuele Zaffuto, Andree-Anne Grosset, Christine Tam, Veronique Ouellet, Markus Graefen, Lars Budäus, Armen G Aprikian, Louis Lacombe, Neil E Fleshner, Martin E Gleave, Anne-Marie Mes-Masson, Fred Saad, Pierre I Karakiewicz
To test the agreement between high-grade PCa at RP and TMA, and the ability of TMA to predict BCR. Validation of concordance between tissue microarray (TMA) and radical prostatectomy (RP) high-grade prostate cancer (PCa) is crucial because latter determines the treated natural history of PCa. We hypothesized that TMA Gleason score is in agreement with RP pathology and capable of accurately predicting biochemical recurrence (BCR). Data were provided from a multi-institutional Canadian sample of 1333 TMA and RP specimens with complete clinicopathological data...
April 6, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29619662/knockdown-of-sox2-inhibits-os-cells-invasion-and-migration-via-modulating-wnt-%C3%AE-catenin-signaling-pathway
#6
Liang Tang, Dong Wang, Dongyun Gu
Osteosarcoma (OS) was a prevalent malignant bone tumor which threatens people's health worldwide. Wnt/β catenin signaling pathway had been proved significant in various cancers, indicating its possible function in OS as well. Sox2, a crucial member among SOX family could regulate cells biologically. How Sox2 modulated Wnt/β catenin signaling pathway in OS remained to be discussed. The study aimed to investigate the effects of Sox2 on the invasion and migration of OS cells and the related molecular mechanisms...
April 4, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29594807/genetic-polymorphisms-in-mir-146a-mir-196a2-and-mir-125a-genes-and-its-association-in-prostate-cancer
#7
Mohan Damodaran, Solomon F D Paul, Vettriselvi Venkatesan
The increase in incidence of prostate cancer in the Indian Population stresses the need to identify genetic markers for susceptibility and prognosis. Recent studies show that microRNAs play an important role in tumorigenesis by altering proliferation, differentiation and cell death. Gene polymorphisms not only in promoter region but also within miRNA gene have been shown to affect expression. The present study was aimed to analyze the role of miR-146a, miR-196a2 and miR-125a gene polymorphisms in prostate cancer...
March 29, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29564744/p38-expression-and-modulation-of-stat3-signaling-in-oral-cancer
#8
I Gkouveris, N Nikitakis, A Sklavounou
p38 protein belongs to Mitogen-activated protein kinases family that link extracellular stimuli with intracellular responses participating in numerous of fundamental cell processes. Persistent activation of STAT3 has been associated with cell proliferation, differentiation and apoptosis in oral squamous cell carcinoma (OSCC). This study examines the effects of p38 modulation on STAT3 signaling and cellular activities in OSCC cells and investigates possible correlation of p38 expression with tumor degree of differentiation...
March 21, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29557085/erlotinib-for-patients-with-egfr-wild-type-metastatic-nsclc-a-retrospective-biomarkers-analysis
#9
Alessandro Inno, Vincenzo Di Noia, Maurizio Martini, Ettore D'Argento, Mariantonietta Di Salvatore, Vincenzo Arena, Giovanni Schinzari, Armando Orlandi, Luigi Maria Larocca, Alessandra Cassano, Carlo Barone
Erlotinib is approved for the treatment of patients with EGFR mutation positive, metastatic NSCLC. It is also approved as second/third line therapy for EGFR mutation negative patients, but in this setting the benefit of erlotinib is modest and there is no validated biomarker for selecting EGFR wild-type patients who may benefit the most from the treatment. We retrospectively assessed EGFR and K-RAS mutational status, and EGFR, c-MET and IGF1-R expression in tumor samples of 72 patients with metastatic NSCLC treated with erlotinib after at least one prior line of chemotherapy, from 2008 to 2012...
March 20, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29556922/idh-mutation-analysis-in-glioma-patients-by-cadma-compared-with-snapshot-assay-and-two-immunohistochemical-methods
#10
Irena Urbanovska, Magdalena Houdova Megova, Zachary Dwight, Ondrej Kalita, Magdalena Uvirova, Jarmila Simova, Lucie Tuckova, Petr Buzrla, Tomas Palecek, Marian Hajduch, Jana Dvorackova, Jiri Drabek
Mutations in IDH1/2 genes are a marker of good prognosis for glioma patients, associated with low grade gliomas and secondary glioblastomas. Immunohistochemistry and Sanger sequencing are current standards for IDH1/2 genotyping while many other methods exist. The aim of this study was to validate Competitive amplification of differentially melting amplicons (CADMA) PCR for IDH genotyping by comparison with SNaPshot assay and two immunohistochemical methods. In our study, 87 glioma patients (46 from Olomouc and 41 from Ostrava) were analyzed...
March 19, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29552713/genetic-analysis-of-brazilian-patients-with-gallbladder-cancer
#11
LETTER
Cristina Sábato, Luciana Bastos-Rodrigues, Debora Chaves Moraes, Eitan Friedman, Luiz De Marco, Vivian Resende
No abstract text is available yet for this article.
March 19, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29552712/epigenetic-mechanisms-and-events-in-gastric-cancer-emerging-novel-biomarkers
#12
REVIEW
Puneet, Hasan Raza Kazmi, Soni Kumari, Satendra Tiwari, A Khanna, Gopeshwar Narayan
Gastric cancer is one of the most common malignancy worldwide. The various genetic and epigenetic events have been found to be associated with its carcinogenesis. The epigenetic is a heritable and transient/reversible change in the gene expression that is not accompanied by modification in the DNA sequence. This event is characterized by the alteration in the promoter CpG island of the gene or histone modification. These events are associated with silencing of critical tumor suppressor gene and activation of oncogenes leading to carcinogenesis...
March 19, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29546635/polymorphisms-in-genes-related-to-cervical-cancer-in-a-brazilian-population-a-case-control-study
#13
LETTER
Thaís da Rocha Boeira, Jonas Michel Wolf, Janaina Coser, Ivana Grivicich, Daniel Simon, Vagner Ricardo Lunge
No abstract text is available yet for this article.
March 15, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29542026/the-role-of-caspase-genes-polymorphisms-in-genetic-susceptibility-to-philadelphia-negative-myeloproliferative-neoplasms-in-a-portuguese-population
#14
Ana P Azevedo, Susana N Silva, Alice Reichert, Fernando Lima, Esmeraldina Júnior, José Rueff
Our main aim was to evaluate the role of caspases' genes SNPs in Philadelphia-chromosome negative chronic myeloproliferative neoplasms (PN-MPNs) susceptibility. A case-control study in 133 Caucasian Portuguese PN-MPNs patients and 281 matched controls was carried out, studying SNPs in apoptosis related caspases: rs1045485 and rs1035142 (CASP8), rs1052576, rs2308950, rs1132312 and rs1052571 (CASP9), rs2227309 and rs2227310 (CASP7) and rs13006529 (CASP10). After stratification by pathology diagnosis for essential thrombocythemia (ET), female gender or JAK2 positive, there is a significant increased risk for those carrying at least one variant allele for CASP9 (C653T) polymorphism (OR 2...
March 14, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29536373/anti-diabetic-drugs-cure-or-risk-factors-for-cancer
#15
REVIEW
Jeny Laskar, Kasturi Bhattacharjee, Mahuya Sengupta, Yashmin Choudhury
Anti-diabetic drugs are an important group of therapeutics used worldwide. Different anti-diabetic drugs lower blood glucose level by different mechanisms. In recent years, numerous investigations have been performed based on both comparative and cohort studies, in order to establish the relationship between anti-diabetic pharmacotherapy and cancer incidence as well as mortality due to cancer. Some anti-diabetic drugs have been found to exhibit anti-cancer activity while others might increase the risk for cancer...
March 13, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29532410/intratumoral-heterogeneity-for-inactivating-frameshift-mutation-of-cyb5r2-gene-in-colorectal-cancers
#16
LETTER
Yun Sol Jo, Min Sung Kim, Nam Jin Yoo, Sug Hyung Lee
No abstract text is available yet for this article.
March 13, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29532409/protein-expression-analysis-in-uterine-cervical-cancer-for-potential-targets-in-treatment
#17
Sugela Blancas, Rogelio Medina-Berlanga, Liliana Ortíz-García, Alfredo Loredo-Ramírez, Leticia Santos
Specific markers in lesions of the human uterine cervix cancer (UCC) are still needed for prognostic, diagnostic and/or therapeutic purposes. In this study we evaluated key molecules at protein level between normal epithelium, cervical intraepithelial neoplasia (CIN1-3) and invasive cancer of a group of molecules previously reported at mRNA level. For that purpose, human formalin-fixed paraffin embedded tissue microarrays (TMAs) were constructed containing 205 Mexican tissue core specimens. Immunohistochemistry and quantitative analysis of histological staining was performed against twenty-two distinct proteins for each core and the processing platform ImageJ...
March 12, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29532408/inactivating-frameshift-mutations-of-hacd4-and-tcp10l-tumor-suppressor-genes-in-colorectal-and-gastric-cancers
#18
LETTER
Yun Sol Jo, Min Sung Kim, Nam Jin Yoo, Sug Hyung Lee
No abstract text is available yet for this article.
March 12, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29532407/mutational-analysis-of-the-mitochondrial-dna-displacement-loop-region-in-human-retinoblastoma-with-patient-outcome
#19
Lata Singh, Neeru Saini, Neelam Pushker, Sameer Bakhshi, Seema Sen, Tapas C Nag, Seema Kashyap
Alteration in mitochondrial DNA plays an important role in the development and progression of cancer. The Displacement Loop (D-loop) region of mitochondrial DNA (mtDNA) is the regulatory region for its replication and transcription. Therefore, we aimed to characterize mutations in the D-loop region of mitochondrial DNA along with the morphological changes and analyzed their impact on survival in retinoblastoma patients. mtDNA D-loop region was amplified by Nested-Polymerase Chain Reaction (Nested-PCR) and mutations were analyzed in 60 tumor samples from retinoblastoma patients by DNA sequencing...
March 12, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29532406/microrna-196b-regulates-hoxa5-hoxb6-and-gltp-expression-levels-in-colorectal-cancer-cells
#20
Ji-Su Mo, Young-Ran Park, Soo-Cheon Chae
MiRNAs are non-coding RNAs that play important roles in the pathogenesis of human diseases by regulating target gene expression in specific cells or tissues. Previously we identified colorectal cancer (CRC) associated MIR196B, which was specifically up-regulated in CRC cells and tissue. We also identified 18 putative MIR196B target genes by comparing the mRNAs down-regulated in MIR196B-overexpressed cells with MIR196B target genes predicted by public bioinformatics tools. In this study, we verified the association between MIR196B and three genes, HOXA5, HOXB6 and GLTP...
March 12, 2018: Pathology Oncology Research: POR
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