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Pathology Oncology Research: POR

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https://www.readbyqxmd.com/read/29344836/boost-irradiation-integrated-to-whole-brain-radiotherapy-in-the-management-of-brain-metastases
#1
Ágnes Dobi, Emese Fodor, Anikó Maráz, Zsófia Együd, Adrienne Cserháti, László Tiszlavicz, Zita Reisz, Pál Barzó, Zoltán Varga, Katalin Hideghéty
Our retrospective analysis aimed to evaluate the clinical value of dose intensification schemes: WBRT and consecutive, delayed, or simultaneous integrated boost (SIB) in brain metastasis (BM) management. Clinical data and overall survival (OS) of 468 patients with BM from various primaries treated with 10 × 3 Gy WBRT (n = 195), WBRT+ 10 × 2 Gy boost (n = 125), or simultaneously 15 × 2.2 Gy WBRT+0.7 Gy boost (n = 148) during a 6-year period were statistically analysed. Significant difference in OS could be detected with additional boost to WBRT (3...
January 17, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29302853/progesterone-receptor-pgr-gene-variants-associated-with-breast-cancer-and-associated-features-a-case-control-study
#2
Rabeb M Ghali, Maryam A Al-Mutawa, Bashayer H Ebrahim, Hanen H Jrah, Sonia Zaied, Hanen Bhiri, Fahmi Hmila, Touhami Mahjoub, Wassim Y Almawi
Insofar as altered estrogen receptor-progesterone receptor (PR) expression contribute to breast cancer pathogenesis, previous studies examined the association of genetic variation in PR gene (PGR) with breast cancer, but with mixed outcome. We evaluated the association between PGR variants, and breast cancer and associated features. A retrospective case-control study involving 183 female breast cancer patients, and 222 control women. PGR genotyping was done by real-time PCR. Minor allele frequencies of rs1042838, rs590688, and rs10895068 PGR gene polymorphisms were significantly higher in breast cancer patients compared to controls...
January 4, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29299827/apical-lymph-nodes-in-the-distant-metastases-and-prognosis-of-patients-with-stage-iii-colorectal-cancer-with-adequate-lymph-node-retrieval-following-folfox-adjuvant-chemotherapy
#3
Hsiang-Lin Tsai, Yi-Ting Chen, Yung-Sung Yeh, Ching-Wen Huang, Cheng-Jen Ma, Jaw-Yuan Wang
The aim of the study was to assess apical lymph nodes (APNs) for predicting distant metastases in patients with stage III colorectal cancer (CRC) curatively treated with FOLFOX adjuvant chemotherapy and adequate lymph node retrieval. We investigated the correlation between APN metastasis and clinical outcomes. This retrospective study examined 97 patients. All patients were followed until death, loss to follow-up, or May 2017. Clinicopathological variables, including the APN status, were assessed. Multivariate logistic regression model was used to identify the independent risk factors for APN and distant metastases, and Cox proportional regression model was used to evaluate the association between APN metastasis and oncologic outcomes...
January 3, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29285737/association-between-polymorphisms-of-x-ray-repair-cross-complementing-group-1-gene-and-pancreatic-cancer-risk-a-systematic-review-with-meta-analysis
#4
Jun Chen, Hong Wang, Zhiming Li
Emerging evidences have shown that common genetic polymorphisms in X-ray repair cross complementing group 1 (XRCC1) gene may be associated with the development of pancreatic cancer, but individually published studies and previous meta-analyses revealed inconclusive results. The aim of our study was to investigate the association between polymorphisms in XRCC1 gene and pancreatic cancer risk. We conducted a search of PubMed, Embase, the Cochrane Library and Web of Science databases. Odds ratios (ORs) with 95% confidence intervals (CIs) were determined as measures of the strength of association between polymorphisms of XRCC1 and pancreatic cancer risk...
December 28, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29285736/beyond-conventional-medicine-a-look-at-blueberry-a-cancer-fighting-superfruit
#5
REVIEW
Kristoffer T Davidson, Ziwen Zhu, Dean Balabanov, Lei Zhao, Mark R Wakefield, Qian Bai, Yujiang Fang
Nearly 40% of men and women will be diagnosed with cancer during their lifetime. Thus, there is a rapidly growing need for novel therapies to combat this deadly disease. One such method is the consumption of blueberries. Long coveted for their powerful antioxidant properties, more recent studies have demonstrated that blueberries also exhibit inherent abilities to prevent carcinogenesis, inhibit the proliferation of neoplastic cells, and reduce the risks of recurrence in patients in remission. This review will focus on the specific activities of blueberry derivatives in cancer cells across many different forms of cancer...
December 28, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29270778/bcl-2-and-pax2-expressions-in-ein-which-had-been-previously-diagnosed-as-non-atypical-hyperplasia
#6
Levent Trabzonlu, Bahar Muezzinoglu, Aydin Corakci
The relationship between PAX2 and another anti-apoptotic gene, BCL-2, has been shown in a limited number of studies. The aims of this study are to investigate the value of PAX2 and BCL-2 expressions in lesions which have been defined as nonatypical hyperplasia in terms of detecting EIN and to evaluate the relations of these proteins in EIN. For this purpose, 108 cases of non-atypical endometrial hyperplasia diagnosed from 2006 to 2011 were re-evaluated. Immunohistochemical studies with PAX2 and BCL-2 were performed in 20 cases with EIN and 34 cases with benign hyperplasia...
December 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29270777/association-between-polymorphisms-in-the-promoter-region-of-microrna-34b-c-and-the-chemoradiotherapy-efficacy-for-locally-advanced-esophageal-squamous-cell-carcinoma-in-chinese-han-population
#7
Jilisihan Bulibu, Wei Wang, Yong Tang, Na Li, Keyoumu Saifuding
The study aims to explore the association between polymorphisms in the promoter region of microRNA-34b/c (miR-34b/c) and the chemoradiotherapy efficacy for locally advanced esophageal squamous cell carcinoma (ESCC) in Chinese Han population. A total of 175 locally advanced ESCC cases and 186 healthy individuals were enrolled as the case and control groups. Denaturing high performance liquid chromatography (DHPLC) was applied to determine the genotypes of subjects. Subjects in the case group were classified into complete response (CR), partial response (PR), stable disease (SD) and progressive disease (PD)...
December 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29270776/epidermal-growth-factor-receptor-egfr-kinase-inhibitors-and-non-small-cell-lung-cancer-nsclc-advances-in-molecular-diagnostic-techniques-to-facilitate-targeted-therapy
#8
REVIEW
Qamar Ghafoor, Shobhit Baijal, Phillipe Taniere, Brendan O'Sullivan, Matthew Evans, Gary Middleton
A subset of patients with non-small cell lung cancer (NSCLC) respond well to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKIs), due to the presence of sensitising mutations in the gene encoding EGFR. Mutations associated with resistance to first generation EGFR TKIs have also been identified, which lead to therapeutic failure and the requirement for new drugs. Three generations of EGFR TKIs have been developed and either have been, or are being, evaluated as first and/or second line therapeutic agents...
December 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29270775/rock1-predictedmicrornas-dysregulation-contributes-to-tumor-progression-in-ewing-sarcoma
#9
G M Roberto, L E A Delsin, G M Vieira, M O Silva, R G Hakime, N F Gava, E E Engel, C A Scrideli, L G Tone, María Sol Brassesco
Over the last decade, the rho-associated kinases and several metastasis-associated microRNAs have emerged as important contributors of tumor invasion. However, despite prominence, our understanding of their involvement in the metastatic potential of Ewing Sarcoma (EWS) is incomplete. The expression profiles of ROCK1 or ROCK2 and miR-124-3p, miR-138-5p, miR-139-5p, miR-335-5p and miR-584-5p (all of which were previously predicted or validated to regulate these kinases) were evaluated through qRT-PCR and associated with clinical parameters...
December 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29264761/unsupervised-clustering-of-immunohistochemical-markers-to-define-high-risk-endometrial-cancer
#10
Enora Laas, Marcos Ballester, Annie Cortez, Olivier Graesslin, Emile Daraï
Considerable heterogeneity exists in outcomes of early endometrial cancer (EC) according to the type but also the histological grading. Our goal was to describe the immunohistochemical profiles of type I EC according to grades and type II EC, to identify groups of interacting proteins using principal component analysis (PCA) and unsupervised clustering. We studied 13 immunohistochemical markers (steroid receptors, pro/anti-apoptotic proteins, metalloproteinases (MMP) and tissue inhibitor of metalloproteinase (TIMP), and CD44 isoforms known for their role in endometrial pathology...
December 20, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29260398/integrated-bioinformatics-analysis-of-potential-biomarkers-for-prostate-cancer
#11
Jiufeng Tan, Xuefei Jin, Kaichen Wang
The aim was to expound the pathogenesis of prostate cancer and to identify the potentially biomarkers for prostate cancer (PC). DNA methylation microarray data GSE38240 containing 8 prostate cancer metastases and 4 normal prostate samples as well as gene expression profile data GSE26910 containing 6 prostate primary tumors and 6 normal samples were used. Differentially expressed genes (DEGs) and differently methylated sites of PC were screened and the regulatory network was constructed with DEGs-related transcription factors (TFs)...
December 19, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29249035/clinicopathologic-and-immunohistochemical-study-of-combined-small-cell-carcinoma-and-urothelial-carcinoma-molecular-subtype
#12
Guang-Qian Xiao, Mary M Barrett, Qi Yang, Pamela D Unger
Muscle invasive bladder cancer, an aggressive disease with heterogeneous molecular profiles, has recently been subclassified into three major molecular subtypes -basal, luminal and "p53-like" urothelial carcinomas (UCas), which bear prognostic and therapeutic implication. Similar to breast cancer, basal and luminal subtype UCas are designated by basal (CK5/14) and luminal (CK20) markers. The "p53-like" subtype presents with wild-type p53 gene with upregulated p53 pathways and is implicated in chemoresistance...
December 16, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29222623/tumor-infiltrating-lymphocytes-in-breast-cancer-patients-with-progressive-disease-during-neoadjuvant-chemotherapy
#13
Jacques Raphael, S Nofech-Mozes, T Paramsothy, N Li, S Gandhi
A minority of breast cancer (BC) patients progress during neoadjuvant chemotherapy (NCT). The aim of this study was to assess the value of Tumor infiltrating lymphocytes (TILs) in such a high-risk population where valid biomarkers are eagerly needed. A retrospective review identified BC patients who either progressed during NCT or achieved a pathologic complete response (pCR). An experienced BC pathologist semi-quantified stromal TILs in pre-treatment core biopsies using hematoxylin and eosin stained slides...
December 8, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29209988/lncrna-egot-promotes-tumorigenesis-via-hedgehog-pathway-in-gastric-cancer
#14
Wei Peng, Jianzhong Wu, Hong Fan, Jianwei Lu, Jifeng Feng
Gastric cancer (GC) is one of the mostly terminal malignancies with poor prognosis. Long noncoding RNA EGOT (EGOT) acts as a crucial regulator in the breast cancer. However, the function of EGOT in GC remains unknown. This work was to explore the clinical value and biological significance of EGOT in GC. EGOT levels in GC tissue and cell were analyzed by qRT-PCR. After knockdown of EGOT, GC cell growth and cycle progression were detected. The expression of EGOT was observably elevated in GC. Upregulation of EGOT was related with lymphatic metastasis and TNM stage...
December 5, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29209987/genetic-investigation-of-polymorphic-ogg1-and-mutyh-genes-towards-increased-susceptibility-in-lung-adenocarcinoma-and-its-impact-on-overall-survival-of-lung-cancer-patients-treated-with-platinum-based-chemotherapy
#15
Amrita Singh, Navneet Singh, Digambar Behera, Siddharth Sharma
Genes OGG1 and MUTYH are the two primary genes in Base excision repair pathway. OGG1 hydrolyzes the sugar phosphate backbone and remove the damaged base creating abasic site. MUTYH complements OGG1 as it particularly remove adenine mispaired with 8-oxo-G. Both OGG1 and MUTYH act as a check for the mis-incorporation of bases may be due to damages incurred on DNA. DNA isolation for 326 lung cancer cases and 330 controls was followed by genotyping making use of PCR-RFLP. Logistic regression was done to analyze the risk towards lung cancer...
December 5, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29209986/data-on-single-nucleotide-polymorphism-of-dna-repair-genes-and-breast-cancer-risk-from-poland
#16
Beata Smolarz, Magdalena Bryś, Ewa Forma, Marek Zadrożny, Jan Bieńkiewicz, Hanna Romanowicz
Single nucleotide polymorphisms (SNPs) may modify the risk of cancer. They may be then regarded as potential markers of carcinogenesis. The aim of this study was to analyze the frequency of genotypes and alleles of SNPs in DNA repair genes and to investigate the influence this genetic variation exerts on breast cancer in Polish females. The test group comprised 600 females with breast cancer and 600 healthy controls. Genomic DNA was isolated and the SNPs in DNA repair genes were determined by High-Resolution Melter (HRM) technique...
December 5, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29209985/frequent-and-yet-unreported-gnaq-and-gna11-mutations-are-found-in-uveal-melanomas
#17
Bjoern Schneider, Katrin Riedel, Andrey Zhivov, Maja Huehns, Heike Zettl, Rudolf F Guthoff, Anselm Jünemann, Andreas Erbersdobler, Annette Zimpfer
Malignant melanoma of the uvea is the most common primary malignant tumor in the eye. We aimed to analyze GNAQ and GNA11 mutations in uveal melanomas using formalin-fixed, paraffin-embedded material and correlate the results with clinicopathological parameters. Tumor tissue was microdissected followed by amplification of GNAQ exon 4 and 5, GNA11 exon 4 and 5, and finally analyzed by Sanger sequencing. A total of 64.4 GNA11/GNAQ mutations, including ten yet unreported, were found. Two cases showed multiple mutations...
December 5, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29177569/low-arid1a-expression-correlates-with-poor-prognosis-and-promotes-cell-proliferation-and-metastasis-in-osteosarcoma
#18
Ning Xu, Lili Wang, Ping Sun, Suyang Xu, Shiping Fu, Zhihua Sun
AT-rich interactive domain-containing protein 1A (ARID1A) has been shown to function as a tumour suppressor in various malignancies. However, the biological role of ARID1A in osteosarcoma is not clear. The present study aimed to investigate the expression pattern, prognostic value and the biological role of ARID1A in human osteosarcoma. ARID1A expression in 53 osteosarcoma surgical specimens was examined by quantitative real-time polymerase chain reaction, and its clinical significance was analysed. The role of ARID1A in cell proliferation, apoptosis, and metastasis were examined...
November 24, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29159783/in-vitro-study-of-the-effects-of-denosumab-on-giant-cell-tumor-of-bone-comparison-with-zoledronic-acid
#19
Isao Shibuya, Masamichi Takami, Arei Miyamoto, Akiko Karakawa, Akira Dezawa, Shigeru Nakamura, Ryutaro Kamijo
Giant cell tumor of bone (GCTB) is a locally aggressive primary bone tumor that contains numerous osteoclasts formed from marrow-derived precursors through receptor activator of nuclear factor κ-B ligand (RANKL), an osteoclast differentiation factor expressed in neoplastic cells of GCTB. Denosumab, a fully human monoclonal antibody targeting RANKL, has recently been used for the treatment of GCTB, and superior treatment effects have been reported. The aim of this work was to elucidate the mechanism of action of denosumab, and the differences between denosumab and zoledronic acid at the level of GCTB cells...
November 20, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29150742/associations-between-nucleus-size-and-immunohistochemical-galectin-3-cytokeratine-19-and-hbme-1-markers-in-thyroid-papillary-carcinoma-a-morphometric-analyze
#20
Hatice Toy, Ozlem Etli, Zeliha Esin Celik, Arsenal Sezgin Alikanoglu
This study aimed to evaluate the morphometric measurements in cases with papillary thyroid carcinoma, and determine a cut-off value to support diagnosis. Fifty cases with a diagnosis of papillary thyroid carcinoma (PTC) were included in the study with their Galectine-3, CK-19 and HBME-1 immunohistochemical staining results. Demographic and clinical data gathered from pathology reports, which included demographic information such as patients' sex, age, macroscopic tumor size, number of tumor focuses; prognostic parameters such as lenfovascular invasion, perineural invasion, thyroid capsule invasion; and results of immunohistochemical CK- 19, Galectin-3 and HBME-1 staining...
November 17, 2017: Pathology Oncology Research: POR
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