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Pathology Oncology Research: POR

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https://www.readbyqxmd.com/read/28439706/cks1bp7-a-pseudogene-of-cks1b-is-co-amplified-with-igf1r-in-breast-cancers
#1
Yansong Liu, Wei Wang, Yan Li, Feifei Sun, Jiaxiang Lin, Li Li
Pseudogenes have been reported to exhibit functional roles. Amplification or overexpression of CDC28 protein kinase regulatory subunit 1B (CKS1B) was found in various human cancers. But it was known little about CKS1B pseudogene 7 (CKS1BP7), a pseudogene sharing considerable sequence identity with CKS1B. The aim of this study was to evaluate copy number alterations (CNAs) of CKS1BP7 and address its potential roles in breast cancer. We detected copy numbers of CKS1BP7 and insulin-like growth factor 1 receptor (IGF1R) using quantitative multi-gene fluorescence in situ hybridization (QM-FISH) technique, compared their status in both invasive carcinoma and ductal carcinoma in situ (DCIS) components within the same tumors, and investigated the associations of CNAs with tumor features and patients outcomes...
April 24, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28435988/the-key-genes-of-chronic-pancreatitis-which-bridge-chronic-pancreatitis-and-pancreatic-cancer-can-be-therapeutic-targets
#2
Shuang Li, Rui Li, Heping Wang, Lisha Li, Huiyu Li, Yulin Li
An important question in systems biology is what role the underlying molecular mechanisms play in disease progression. The relationship between chronic pancreatitis and pancreatic cancer needs further exploration in a system view. We constructed the disease network based on gene expression data and protein-protein interaction. We proposed an approach to discover the underlying core network and molecular factors in the progression of pancreatic diseases, which contain stages of chronic pancreatitis and pancreatic cancer...
April 24, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28434174/molecular-alterations-and-expression-dynamics-of-lats1-and-lats2-genes-in-non-small-cell-lung-carcinoma
#3
Showkat A Malik, Mosin S Khan, Majeed Dar, Mahboob Ul Hussain, Mohammad A Shah, Sheikh M Shafi, Syed Mudassar
Large tumor suppressor (LATS) is an important member of the Hippo pathway which can regulate organ size and cell proliferation. However, very little is known about the expression and clinical significance of LATS in lung cancer especially from this part of the world. We elucidated the frequency of LATS1 &LATS2 promoter hypermethylation (by methylation-specific PCR) and expression (by real-time PCR) in sixty nine (n = 69) Non-Small Cell Lung Cancer (NSCLC) patients and their corresponding normal lung tissue samples...
April 22, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28432651/cr-and-pr-the-residual-tumor-classification-revisited
#4
LETTER
Arne Warth
No abstract text is available yet for this article.
April 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28432650/efficacy-and-tolerability-of-a-2-year-rituximab-maintenance-therapy-in-patients-with-advanced-follicular-lymphoma-after-induction-of-response-with-rituximab-containing-first-line-regimens-husom-study
#5
Tamás Schneider, András Rosta, Hajna Losonczy, Gáspár Radványi, György Ujj, Miklós Egyed, Árpád Illés, János Jakucs, László Szerafin, Zoltán Gasztonyi, Tamás Masszi, János Iványi, Judit Demeter, Péter Dombi, Antal Tóth, Zita Borbényi
Follicular lymphoma is a lymphoid malignancy commonly showing slow progression which makes the treatment of the disease challenging. Rituximab monotherapy and rituximab added to standard chemotherapy has been proven to increase survival among patients with advanced stage of the disease. However, the benefit of a rituximab maintenance therapy after induction was still unclear at the time of the initiation of this study. HUSOM was a phase III open-label, single-arm, multi-centre study aimed to assess the efficacy and the safety of the 12 cycles of rituximab (375 mg/m(2) every 8 weeks) maintenance therapy in patients had already presented partial or complete response to R-CVP or R-CHOP...
April 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28429277/primary-ewing-sarcoma-primitive-neuroectodermal-tumor-of-the-kidney-a-clinicopathologic-study-of-23-cases
#6
Paari Murugan, Priya Rao, Pheroze Tamboli, Bogdan Czerniak, Charles C Guo
Primary Ewing sarcoma / primitive neuroectodermal tumor (ES) of the kidney is a rare neoplasm with limited clinicopathologic data. We report 23 such cases with no history of ES elsewhere in the body. The patients included 13 male and 10 female, aged 8-70 years (mean, 31 years). The average tumor size was 11.7 cm (range, 5-20 cm). Microscopic analysis showed predominantly lobular growth (n = 14), with focal papillary (n = 3), alveolar (n = 1), and hemangiopericytoma-like (n = 1) patterns. Several tumors (n = 11) exhibited robust mitotic activity (>10 mitoses/10 high-power fields)...
April 20, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28411309/calreticulin-mutations-in-bulgarian-mpn-patients
#7
Ivan Pavlov, Evgueniy Hadjiev, Tzvetan Alaikov, Sylva Spassova, Angel Stoimenov, Elissaveta Naumova, Velizar Shivarov, Milena Ivanova
Somatic mutations in JAK2, MPL and CALR are recurrently identified in most of the cases with Philadelphia chromosome negative myeloproliferative neoplasms (MPNs). We applied four molecular genetic methods for identification of CALR exon 9 mutations, including high resolution melt (HRM) analysis, Sanger sequencing, semiconductor target genes sequencing and whole exome sequencing. A total of 78 patients with myeloid malignancies were included in the study. We identified 14 CALR exon 9 mutated cases out of 78 studied patients with myeloid malignancies...
April 14, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28411308/the-effect-of-mir-200c-inhibition-on-chemosensitivity-5-fluorouracil-in-colorectal-cancer
#8
Korosh Heydari, Massoud Saidijam, Mohammad Reza Sharifi, Fatemeh Karimi Dermani, Sara Soleimani Asl, Nooshin Shabab, Rezvan Najafi
5-Fluorouracil (5-FU) as a chemotherapeutic drug is used to treat colorectal cancer (CRC). However, 5-FU is associated with acquired CRC resistance, which decreases the therapeutic potential of 5-FU. Several studies indicated that miR-200c is also involved in chemotherapeutic drug resistance, but the exact mechanism of miR-200c mediated chemoresistance has not yet been fully understood. In this study, we examined the effect of inhibition of miR-200c on the sensitivity of HCT-116 cells to 5-FU. HCT-116 cells were transfected with LNA-anti- miR-200c for 48 h...
April 14, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28401452/polymorphism-of-promoter-region-of-tnfrsf1a-gene-610%C3%A2-t%C3%A2-%C3%A2-g-as-a-novel-predictive-factor-for-radiotherapy-induced-oral-mucositis-in-hnc-patients
#9
Anna Brzozowska, Tomasz Powrózek, Iwona Homa-Mlak, Radosław Mlak, Marzanna Ciesielka, Paweł Gołębiowski, Teresa Małecka-Massalska
Every year, about 650 thousand new cases of Head and Neck Cancer (HNC) are diagnosed globally. Apart from surgery, radiotherapy (RTH), chemotherapy (CHT) or its combination is used in the treatment of HNC. One of the most frequent complications and, at the same time, limitations of RTH is oral mucositis (OM). Proinflammatory cytokines (including TNF-α) play a key role in the development of OM. Genetic alterations, i.e. single nucleotide polymorphisms (SNPs) within genes encoding for receptors for TNF (ie. TNFRSF1A) may change their function...
April 11, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28401451/col1a2-is-a-novel-biomarker-to-improve-clinical-prediction-in-human-gastric-cancer-integrating-bioinformatics-and-meta-analysis
#10
Li Rong, Wei Huang, Shangkun Tian, Xiangbo Chi, Pan Zhao, Fengfeng Liu
Gastric cancer is the third most common cause of cancer-related death in worldwide. It is crucial to target the key genes controlling pathogenesis in the early stage of gastric cancer. This study describes an integrated bioinformatics to identify molecular biomarkers for gastric cancer in patients' cancer tissues. We reports differently expression genes in large gastric cancer cohorts from Gene Expression Ominus (GEO). Our findings revealed that 433 genes were significantly different expressed in human gastric cancer...
April 11, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28401450/reproducibility-and-prognostic-potential-of-ki-67-proliferation-index-when-comparing-digital-image-analysis-with-standard-semi-quantitative-evaluation-in-breast-cancer
#11
Balázs Ács, Lilla Madaras, Kristóf Attila Kovács, Tamás Micsik, Anna-Mária Tőkés, Balázs Győrffy, Janina Kulka, Attila Marcell Szász
In this study, the reproducibility of Ki-67 proliferation index (KIPI) was investigated by comparing the semi-quantitative (SQ) results of three assessors with those of digital image-analysis (DIA) methods. The prognostic significance of the two approaches was also correlated with clinical outcome. Tissue microarrays of duplicate 2 mm cores were constructed from representative areas of formalin-fixed and paraffin-embedded tumor blocks of 347 breast cancer patients. SQ evaluation of Ki-67 (MIB1 clone) immunostained slides was performed independently by three pathologists...
April 11, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28401449/silence-of-long-noncoding-rna-neat1-inhibits-malignant-biological-behaviors-and-chemotherapy-resistance-in-gastric-cancer
#12
Jiale Zhang, Bochao Zhao, Xiuxiu Chen, Zhenning Wang, Huimian Xu, Baojun Huang
Gastric cancer (GC) is the most common solid tumor in digestive system. Nuclear-enriched abundant transcript 1 (NEAT1) gene is a lncRNA, and reveal potential oncogene role in several malignant tumors. The aim of this study is to investigate the expression and clinical significance of Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) gene and its influence to malignant biologic behaviors and chemotherapy resistance to adriamycin in GC. This study found NEAT1 was up-regulated in GC tissues and cells, especially in in GC adriamycin-resistant cells...
April 11, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28396991/rack1-silencing-induces-cell-apoptosis-and-inhibits-cell-proliferation-in-hepatocellular-carcinoma-mhcc97-h-cells
#13
Yuan-Hang Zou, Xue-Dong Li, Qi-Hao Zhang, De-Zhong Liu
This study aimed to explore the effects of RACK1 gene silencing on the apoptosis and proliferation of hepatocellular carcinoma (HCC) MHCC97-H cells. After transfecting MHCC97-H cells with siRNA, RACK1 gene silencing model was established. The cells were divided into blank group, siRNA group and empty plasmid group, respectively. The mRNA and protein expressions of RACK1, cyclin D1 and BAX were determined by qRT-PCR and Western blotting. CCK-8 assay, flow cytometry and FITC-Annexin V/PI staining were used to determine cell viability, cell cycle and cell apoptosis, respectively...
April 10, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28391513/incidental-findings-in-reduction-mammoplasty-specimens-in-patients-with-no-prior-history-of-breast-cancer-an-analysis-of-783-specimens
#14
Pedro Luiz Serrano Usón Junior, Donato Callegaro Filho, Diogo Diniz Gomes Bugano, Felipe Correa Geyer, Marcus Vinicius de Nigro Corpa, Paulo David Scatena Gonçalves, Sergio Daniel Simon, Rafael Aliosha Kaliks
Breast reduction surgery is a common procedure and the rate of incidental findings in the removed specimens varies between 0% and 4.6%. There are no guidelines about pathological evaluation of breast reduction surgery. We reviewed all pathology reports of patients undergoing breast reduction surgery in a single tertiary institution in Brazil from January 2008 to August 2014. Exclusion criteria were a personal history of breast cancer, unclear reason for mastectomy and incomplete data on the pathology report...
April 8, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28391512/is-regression-after-neoadjuvant-chemotherapy-for-locally-advanced-breast-cancer-different-in-sentinel-and-non-sentinel-nodes
#15
Gábor Cserni, Tamás Zombori, Xavier Andreu, Simonetta Bianchi, Peter Regitnig, Isabel Amendoeira, Davide Balmativola, Anikó Kovács, Alicia Cordoba, Angelika Reiner, Janina Kulka, Handan Kaya, Inta Liepniece-Karele, Cecily Quinn, Bence Kővári
Tumor draining sentinel lymph nodes (SLNs) are the sites of selective changes as compared to non-SLNs. They show features of tumor-reactive lymphadenopathy, including increased total number of functional blood vessels, but a relative immunosuppressed status has also been described in them. We explored the hypothesis of a selective regression or non-regression in SLNs versus non-SLNs in 142 patients with 110 estrogen receptor-positive and 32 estrogen receptor-negative tumors undergoing both SLN biopsy and axillary lymph node dissection after neoadjuvant therapy by assessing the tumoral (metastatic) and regression statuses of SLNs and non-SLNs separately...
April 8, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28374346/a-novel-technique-to-improve-the-processing-of-minute-ureteroscopic-biopsies
#16
Shay Golan, Glenn Gerber, David Margel, Lea Rath-Wolfson, Yaron Ehrlich, Rumelia Koren, David Lifshitz
To examine the ability of a new specimen handling technique to improve histopathological yield of ureteroscopic biopsies, performed in patients with suspected upper tract urothelial carcinoma (UTUC). In a bi-center retrospective study we compared the results of the new tissue handling technique (group 1) with the standard technique (group 2). In the new technique, to achieve maximal tissue preservation, the specimen is mounted on filter paper prior to embedding in paraffin. Multivariate analysis was performed to determine which factors are associated with optimal histological results...
April 3, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28357685/familial-acute-myeloid-leukemia-and-myelodysplasia-in-hungary
#17
Attila Péter Király, Krisztián Kállay, Ambrus Gángó, Ádám Kellner, Miklós Egyed, Anita Szőke, Richárd Kiss, István Vályi-Nagy, Judit Csomor, András Matolcsy, Csaba Bödör
Although genetic predisposition to haematological malignancies has long been known, genetic testing is not yet the part of the routine diagnostics. In the last ten years, next generation sequencing based studies identified novel germline mutations in the background of familial aggregation of certain haematologic disorders including myelodysplastic syndromes (MDS) and acute myeloid leukaemia (AML). This is supported by the fact that the myeloid neoplasms with genetic predisposition represent a new category in the revised 2016 World Health Organization classification...
March 29, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28341911/nutlin-3-an-antagonist-of-mdm2-enhances-the-radiosensitivity-of-esophageal-squamous-cancer-with-wild-type-p53
#18
Tianli He, Jiayou Guo, Hongmei Song, Hongcheng Zhu, Xiaoke Di, Hua Min, Yuandong Wang, Guangzong Chen, Wangshu Dai, Jianhua Ma, Xinchen Sun, Jianxin Ma
Murine double minute 2 (MDM2) negatively regulates the activity of the p53 protein and plays a vital role in cell cycle arrest, apoptosis, and senescence mediated by p53. Nutlin-3, an antagonist of MDM2, is frequently used in anti-cancer studies. In many human tumors, nutlin-3 stabilizes p53 status and enhances p53 expression in cells with wild-type p53. However, the effect of nutlin-3 combined with radiotherapy on esophageal squamous cancer (ESCC) has not been reported. In this study, we examined whether nutlin-3 increases the radiosensitivity of ESCC in vitro and in vivo...
March 24, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28299711/pathological-findings-in-myasthenia-gravis-patients-with-thymic-hyperplasia-and-thymoma
#19
Ping Chen, Ying-Peng Wang, Dan-Lei Mou, Zheng-Yi Li, Qiu-Min Qu, Hong-Yan Wang, Yuan Deng, Xiao-Feng Li, Ting Wang, Xian-Hao Xu, Gang Zhao
Thymectomy is routinely carried out in patients with myasthenia gravis (MG) and thymomas. However, there is still a dispute as to whether MG patients with thymic hyperplasia should undergo thymectomy. We aimed to investigate the pathological findings in the thymus in patients with co-existing MG and thymic hyperplasia or thymomas treated with thymectomy, as well as effects of immunosuppression. Thirty-three patients with MG were selected and grouped accordingly: patients with no thymic abnormalities, patients with thymic hyperplasia, and patients with thymomas...
March 15, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28236154/a-retrospective-case-control-study-of-ductal-plate-malformation-like-features-in-consecutive-200-autopsies
#20
LETTER
Tadashi Terada
No abstract text is available yet for this article.
February 24, 2017: Pathology Oncology Research: POR
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