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Pathology Oncology Research: POR

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https://www.readbyqxmd.com/read/28924964/mir-490-5p-inhibits-hepatocellular-carcinoma-cell-proliferation-migration-and-invasion-by-directly-regulating-robo1
#1
Weiqing Chen, Lijun Ye, Dengcheng Wen, Feihua Chen
Studies have investigated the effect of ROBO1. All the same, the relationship between miR-490-5p and ROBO1, and the underlying mechanism are still unclear. We aimed to study the effect of microRNA-490-5p (miR-490-5p) on hepatocellular carcinoma (HCC) cell proliferation, migration and invasion by directly regulating ROBO1. The expression of miR-490-5p and ROBO1 in HCC tissues and cells were tested by RT-qPCR, and the Hep3B cells were selected for subsequent experiments. We confirmed the relationship between miR-490-5p and ROBO1 by luciferase reporter system...
September 19, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28921449/overexpression-of-fzd1-and-caix-are-associated-with-invasion-metastasis-and-poor-prognosis-of-the-pancreatic-ductal-adenocarcinoma
#2
Liangliang Yang, Zhulin Yang, Daiqiang Li, Ziru Liu, Qiong Zou, Yuan Yuan, Huilan Xu
Approximately 80% of patients with pancreatic ductal adenocarcinoma (PDAC) have metastatic disease with poor prognosis, but clinically available biomarkers have not yet been identified. This study was to investigate the clinical significance of FZD1 and CAIX in PDACs. FZD1 and CAIX protein expression was measured using EnVision immunohistochemistry. Positive FZD1 or CAIX expression was significantly higher in PDAC than that in precursor lesions (p < 0.01). Positive FZD1 or CAIX expression was significantly lower in cases with well-differentiated adenocarcinoma, no-metastasis of the lymph node, no-invasion of regional tissues, and TNM I/II stage disease than in cases with poorly-differentiated adenocarcinoma, metastasis and invasion, and TNM stage III+ IV stage disease (p < 0...
September 18, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28918579/analysis-of-undesirable-sequelae-of-sentinel-node-surgery-in-breast-cancer-patients-a-prospective-cohort-study
#3
Dominika Kozak, Iwona Głowacka-Mrotek, Tomasz Nowikiewicz, Zygmunt Siedlecki, Wojciech Hagner, Magdalena Sowa, Wojciech Zegarski
Use of sentinel lymph node biopsy limits the frequency and severity of sequelae of surgical treatment. However, the procedure itself may not be completely free of complications. The goal of this work was to analyze prospectively the occurrence of undesirable sequelae in patients undergoing sentinel lymph node biopsy as an isolated intervention in the axillary fossa. This prospective observational study was conducted on a group of 104 women. Patients were examined on five occasions: one day before the procedure, one day after the procedure, one month, three months, and six months after the procedure...
September 16, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28913723/therapeutic-implications-of-the-molecular-and-immune-landscape-of-triple-negative-breast-cancer
#4
REVIEW
Ana C Gregório, Manuela Lacerda, Paulo Figueiredo, Sérgio Simões, Sérgio Dias, João Nuno Moreira
Treatment and management of breast cancer imposes a heavy burden on public health care, and incidence rates continue to increase. Breast cancer is the most common female neoplasia and primary cause of death among women worldwide. The recognition of breast cancer as a complex and heterogeneous disease, comprising different molecular entities, was a landmark in our understanding of this malignancy. Valuing the impact of the molecular characteristics on tumor behavior enabled a better assessment of a patient's prognosis and increased the predictive power to therapeutic response and clinical outcome...
September 14, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28913610/eukaryotic-elongation-factor-2-eef2-is-a-potential-biomarker-of-prostate-cancer
#5
Xuefeng Zhang, Linkun Hu, Mingzhan Du, Xuedong Wei, Jun Zhang, Yu Hui, Cheng Chen, Gang Li, Jianquan Hou
Eukaryotic elongation factor 2 (eEF2), a key regulator of protein synthesis, is involved in the progression of several types of cancer. This first study was to investigate the relationships between eEF2 protein and prostate cancer (PCa). Immunohistochemical staining was used to verify eEF2 protein in a set of 97 formalin-fixed, paraffin-embedded primary PCa tissues. Expression of eEF2 protein in positive cells was characterized by cytoplasmic staining. Correlations with clinicopathological factors were evaluated by Chi-square or Fisher's exact probability tests...
September 14, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28900871/incidence-of-contrast-induced-nephropathy-in-patients-with-multiple-myeloma-undergoing-contrast-enhanced-procedures
#6
Maeve P Crowley, Vinitha N Prabhakaran, Oonagh M Gilligan
Multiple myeloma (MM) is a malignant disorder characterized by clonal proliferation of plasma cells. Renal impairment is a common complication. Contrast-induced nephropathy (CIN) is a form of acute renal failure that can occur in the setting of IV contrast administration. It is more commonly seen in patients with pre-existing renal impairment. Patients with MM commonly require contrast enhanced procedures. The literature regarding the safety of IV contrast in this cohort is lacking. A retrospective review was carried out in a university hospital to identify the incidence of CIN in patients with MM and to look for associated risk factors...
September 13, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28891017/re-appraisal-of-estrogen-receptor-negative-progesterone-receptor-positive-er-pr-breast-cancer-phenotype-true-subtype-or-technical-artefact
#7
Niamh M Foley, J M Coll, A J Lowery, S O Hynes, M J Kerin, M Sheehan, C Brodie, K J Sweeney
Expression of the ER and PR receptors is routinely quantified in breast cancer as a predictive marker of response to hormonal therapy. Accurate determination of ER and PR status is critical to the optimal selection of patients for targeted therapy. The existence of an ER-/PR+ subtype is controversial, with debate centred on whether this represents a true phenotype or a technical artefact on immunohistochemistry (IHC). The aim of this study was to investigate the true incidence and clinico-pathological features of ER-/PR+ breast cancers in a tertiary referral symptomatic breast unit...
September 11, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28889324/expression-and-prognostic-value-of-oestrogen-receptor-beta-in-colorectal-cancer
#8
Elisabeth Pérez-Ruiz, Antonio Rueda, Lidia Pérez, Francisco Rivas-Ruiz, Esperanza Torres, Vanesa de Luque, Martina Álvarez, Isabel Sevilla, Maximino Redondo, Maria Padilla-Ruiz, Emilio Alba, Lorenzo Alonso
Differences between men and women in the incidence and biological mechanisms of colorectal cancer (CRC) suggest that estrogens may play a role in the pathogenesis of this disease. The identification of the human estrogen receptor beta (ERβ) and its expression in the intestinal mucosa led to further studies that revealed that estrogens have a protective function against CRC mediated by the activation of ERβ. However, ERβ expression and its role in CRC is controversial. The purpose of this study was to determine the distribution and prognostic value of ERβ expression in the intestinal mucosa of patients diagnosed and surgically treated for CRC, and its association with other known prognostic factors...
September 9, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28887636/mir-184-retarded-the-proliferation-invasiveness-and-migration-of-glioblastoma-cells-by-repressing-stanniocalcin-2
#9
Linsen Feng, Jianhua Ma, Haiming Ji, Yichun Liu, Weixing Hu
To investigate the repression of miR-184 on Stanniocalcin-2 (STC2) and how this axis affects the propagation, invasiveness and migration ability of glioblastoma cells. RT-PCR was employed to determine the miR-184 and STC2 mRNA expression both in tissues and cells. Western blot was employed to determine the protein expression levels. The cells were transfected via lipofection. MTT, colony formation, invasion and scratch healing assays were conducted to study the propagation, invasiveness and migratory ability of glioblastoma cells, respectively...
September 8, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28887603/molecular-signature-of-tumors-with-monoallelic-13q14-deletion-a-case-series-of-spindle-cell-lipoma-and-genetically-related-tumors-demonstrating-a-link-between-foxo1-status-and-p38-mapk-pathway
#10
Karina Uehara, Fukino Ikehara, Ryo Shibuya, Iwao Nakazato, Mariko Oshiro, Masaya Kiyuna, Yasuka Tanabe, Zensei Toyoda, Kiyoto Kurima, Shinichiro Kina, Masanori Hisaoka, Takao Kinjo
Spindle cell/pleomorphic lipomas (SCLs), cellular angiofibromas (CAFs) and mammary-type myofibroblastomas (MFBs) are rare benign mesenchymal tumors with monoallelic 13q14 deletion. They are predicted to have a common pathogenic mechanism due to shared similar histological and immunohistochemical features; however, pathological consequences of monoallelic 13q14 deletion remain unknown. We previously reported a CAF case with monoallelic 13q14 deletion in which the tumor expressed decreased levels of FOXO1 and RB1, both of which were encoded in 13q14, and increased reactive oxygen species (ROS) levels...
September 8, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28875467/erratum-to-breast-cancer-risk-associated-with-genotype-polymorphisms-of-the-aurora-kinase-a-gene-aurka-a-case-control-study-in-a-high-altitude-ecuadorian-mestizo-population
#11
Andrés López-Cortés, Alejandro Cabrera-Andrade, Fabián Oña-Cisneros, Carolina Echeverría, Felipe Rosales, Malena Ortiz, Eduardo Tejera, César Paz-Y-Miño
No abstract text is available yet for this article.
September 5, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28871486/erratum-to-tert-promoter-mutation-and-telomere-length-in-salivary-gland-tumors
#12
Heejin Kim, Dongbin Ahn, Jin Ho Sohn, Yong-Hee Kim, Jae-Ho Lee, Hyunsu Lee
No abstract text is available yet for this article.
September 4, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28868565/comparison-of-the-amplification-refractory-mutation-system-super-amplification-refractory-mutation-system-and-droplet-digital-pcr-for-t790%C3%A2-m-mutation-detection-in-non-small-cell-lung-cancer-after-failure-of-tyrosine-kinase-inhibitor-treatment
#13
Lucheng Zhu, Shirong Zhang, Yanping Xun, Yanping Jiang, Bing Xia, Xueqin Chen, Limin Wang, Hong Jiang, Shenglin Ma
Plasma mutation detection has the advantages of non-invasiveness and accessibility. Here, we evaluated three methods, the amplification refractory mutation system (ARMS), second-generation ARMS (SuperARMS), and droplet digital PCR (ddPCR), to assess their concordance and feasibility for the detection of mutations in plasma samples. Non-small lung cancer patients with stage IIIB/IV that were resistant to epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) treatment were enrolled. Blood samples were collected within 14 days after TKI resistance...
September 3, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28861772/oral-health-may-affect-the-performance-of-mrna-based-saliva-biomarkers-for-oral-squamous-cell-cancer
#14
József Horváth, Adrien Szabó, Ildikó Tar, Balázs Dezső, Csongor Kiss, Ildikó Márton, Beáta Scholtz
Oral squamous cell carcinoma (OSCC) has a dismal 50% five-year survival rate, emphasizing the need to develop reliable and sensitive tools for early diagnosis. In this study we evaluated the performance of 7 previously identified, potential mRNA biomarkers of OSCC in saliva samples of Hungarian patients. Expression of the putative OSCC biomarkers (DUSP1, OAZ1, H3F3A, IL1B, IL8, SAT and S100P), 2 biomarkers of inflammation (IL6 and TNFα) and 8 putative normalizing genes was quantified from each sample using real-time quantitative PCR...
August 31, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28844109/intratumoral-heterogeneity-of-somatic-mutations-for-nrip1-dok1-ulk1-ulk2-dlgap3-pard3-and-prkci-in-colon-cancers
#15
Eun Ji Choi, Ju Hwa Lee, Min Sung Kim, Sang Yong Song, Nam Jin Yoo, Sug Hyung Lee
Both NRIP1 and DOK1 genes are considered candidate tumor suppressor genes (TSGs). Also, cell polarity-related genes PARD3, PRKCI and DLGAP3, and autophagy-related genes ULK1 and ULK2 genes are considered to play crucial roles in tumorigenesis. The aim of our study was to find whether these genes were mutated in colorectal cancer (CRC). In a genome database, we observed that each of these genes harbored mononucleotide repeats in the coding sequences, which could be mutated in cancers with high microsatellite instability (MSI-H)...
August 26, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28842827/nephronectin-is-decreased-in-metastatic-breast-carcinoma-and-related-to-metastatic-organs
#16
Sayra Dilmac, Nuray Erin, Necdet Demir, Gamze Tanriover
Breast cancer causes death mostly due to distant metastasis. During metastasis, cancer cells create new conditions in which normal tissue structure can be disturbed. Nephronectin, which is the primary ligand for α8β1 integrin, plays an important role in kidney development. There are conflicting findings regarding its role in cancer progression and metastasis, especially in breast carcinoma. The aim of this study was to determine changes in nephronectin expression in primary tumor tissues and metastatic visceral organs, using metastatic and non-metastatic cell lines in a mouse model of breast cancer...
August 25, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28840524/prevalence-of-anal-human-papillomavirus-infection-in-hungarian-men-who-have-sex-with-men
#17
Eszter Szabó, Csaba Kósa, Edit Babarczi, Mihály Sulyok, Eszter Ujhelyi, Dénes Bánhegyi, István Vályi-Nagy
Anal cancer is one of the leading causes of death in non-AIDS defining cancers. Most of these cancers are associated with high risk HPV infection. So far, the prevalence and the significance of anal HPV infection have not been studied in the Hungarian MSM population. The main objective of our study was to determine the prevalence and associated risk factors of HPV-infection in the Hungarian MSM community, particularly in HIV-infected MSM. Out of 109 examinations 92 samples (80 HIV-infected and 12 HIV-negative MSM) were evaluated for both cytological abnormalities and HPV genotyping PCR...
August 24, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28828696/association-of-il-27-rs153109-and-rs17855750-polymorphisms-with-risk-and-response-to-therapy-in-acute-lymphoblastic-leukemia
#18
Alireza Ghavami, Gholamreza Fathpour, Zahra Amirghofran
Interleukin (IL)-27 is a cytokine with important anti-cancer activity. This study has evaluated the effects of IL-27 rs153109 and rs17855750 single nucleotide polymorphisms (SNPs) on risk of acute lymphoblastic leukemia (ALL) development, as well as their impact on prognosis and patient survival. A total of 200 patients and 210 healthy subjects were genotyped by polymerase chain reaction-restriction fragment length polymorphism. We observed a higher frequency of rs153109 AG and rs17855750 TG genotypes and allele G in patients compared to controls (p < 0...
August 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28828637/itih4-effective-serum-marker-early-warning-and-diagnosis-hepatocellular-carcinoma
#19
Xiaohan Li, Bo Li, Boan Li, Tongsheng Guo, Zhiqiang Sun, Xiaoxi Li, Lin Chen, Weijiao Chen, Peng Chen, Yuanli Mao, Yanjun Zeng
Hepatocellular carcinoma (HCC) is a highly lethal malignant tumor evolved from cirrhosis. It is quite significant to seek accurate, easy markers for early warning and diagnosis of HCC. Through prospective cohort follow-up study and mass spectrometry, we discovered and verified a serum marker valuable for early warning and diagnosis. Follow-up observation was performed on cirrhosis patients. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was adopted to detect the serums of patients, and the serum polypeptides with a potential value in early HCC warning and diagnosis were screened...
August 21, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28815470/alterations-in-scai-expression-during-cell-plasticity-fibrosis-and-cancer
#20
Ákos Gasparics, Gábor Kökény, Attila Fintha, Rita Bencs, Miklós M Mózes, Emese Irma Ágoston, Anna Buday, Zoltán Ivics, Péter Hamar, Balázs Győrffy, László Rosivall, Attila Sebe
Suppressor of cancer cell invasion (SCAI) has been originally characterized as a tumor suppressor inhibiting metastasis in different human cancer cells, and it has been suggested that SCAI expression declines in tumors. The expression patterns and role of SCAI during physiological and pathophysiological processes is still poorly understood. Earlier we demonstrated that SCAI is regulating the epithelial-mesenchymal transition of proximal tubular epithelial cells, it is downregulated during renal fibrosis and it is overexpressed in Wilms' tumors...
August 16, 2017: Pathology Oncology Research: POR
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