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Analytical Cellular Pathology (Amsterdam)

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https://www.readbyqxmd.com/read/30079295/an-overlapping-cell-image-synthesis-method-for-imbalance-data
#1
Yi Ning Xie, Lian Yu, Guo Hui Guan, Yong Jun He
DNA ploidy analysis of cells is an automation technique applied in pathological diagnosis. It is important for this technique to classify various nuclei images accurately. However, the lack of overlapping nuclei images in training data (imbalanced training data) results in low recognition rates of overlapping nuclei images. To solve this problem, a new method which synthesizes overlapping nuclei images with single-nuclei images is proposed. Firstly, sample selection is employed to make the synthesized samples representative...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30079294/positive-association-between-tgfb1-gene-and-susceptibility-to-idiopathic-scoliosis-in-bulgarian-population
#2
Svetla Nikolova, Milka Dikova, Dobrin Dikov, Assen Djerov, Alexey Savov, Ivo Kremensky, Alexandre Loukanov
Idiopathic scoliosis (IS) is a common medical condition beginning in childhood and characterized by strong evidence for a genetic susceptibility to three-dimensional spinal deformity. The primary goal of the current case-control study is to examine the association between the TGFB1 (-509C/T) functional polymorphic variant and genetic predisposition to IS in the Bulgarian population and the genotype-phenotype correlations in distinct case-control subgroups based on age at onset, family history, and gender. A total of 127 patients with primary scoliosis and 254 gender-matched control subjects were recruited...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30079293/the-role-of-abnormal-methylation-of-wnt5a-gene-promoter-regions-in-human-epithelial-ovarian-cancer-a-clinical-and-experimental-study
#3
Ping Jin, Yi Song, Guiyuan Yu
Objective: In the current study, the role of abnormal methylation of Wnt5a gene promoter regions in human epithelial ovarian cancer was investigated. Methods: Wnt5a expressions were examined by immunohistochemistry in epithelial ovarian tissues (30 normal and 79 human EOC tissues). SKOV3 cells were treated with different concentrations of 5-Aza-CdR (0.5, 5, and 50  μ mol/L). The methylation status of the Wnt5a promoter was analyzed using a methylation-specific polymerase chain reaction (MSP), and the expression level of Wnt5a mRNA was detected using quantitative real-time polymerase chain reaction (qRT-PCR)...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30079292/evaluation-and-immunolocalization-of-bmp4-and-fgf8-in-odontogenic-cyst-and-tumors
#4
Neeti Swarup, Meghanand T Nayak, Zoya Chowdhary, Monica Mehendiratta, Shikha Khatana, Su Jung Choi, Chandarani Sagolsem
Growth factors like bone morphogenetic protein 4 (BMP4) and fibroblast growth factor 8 (FGF8) play a major role in organogenesis and specifically in odontogenesis. They are also believed to have a role in oncogenesis. Thus, any discrepancies in their standard behavior and activity would lead to serious abnormalities including odontogenic cyst and tumors. The present research work investigated the expression of BMP4 and FGF8 in odontogenic tumors (OT) and cyst as well as developing tooth germs to elucidate their roles...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30073137/methylation-demethylation-dynamics-implications-of-changes-in-acute-kidney-injury
#5
REVIEW
Anubhav Chakraborty, Pragasam Viswanathan
Over the years, the epigenetic landscape has grown increasingly complex. Until recently, methylation of DNA and histones was considered one of the most important epigenetic modifications. However, with the discovery of enzymes involved in the demethylation process, several exciting prospects have emerged that focus on the dynamic regulation of methylation and its crucial role in development and disease. An interplay of the methylation-demethylation machinery controls the process of gene expression. Since acute kidney injury (AKI), a major risk factor for chronic kidney disease and death, is characterised by aberrant expression of genes, understanding the dynamics of methylation and demethylation will provide new insights into the intricacies of the disease...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30050750/lncrna-loxl1-as1-promotes-the-proliferation-and-metastasis-of-medulloblastoma-by-activating-the-pi3k-akt-pathway
#6
Ran Gao, Rui Zhang, Cuicui Zhang, Yingwu Liang, Weining Tang
Medulloblastoma is the most common malignant brain tumor of childhood, with great potential to metastasize. However, the mechanisms of how medulloblastoma develops and progresses remain to be elucidated. The present study assessed the role of long noncoding RNA LOXL1-AS1 (lncRNA LOXL1-AS1) in the cell proliferation and metastasis in human medulloblastoma. It was initially found that LOXL1-AS1 was significantly overexpressed in clinical medulloblastoma tissues compared with the adjacent noncancerous tissues...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30046513/metformin-treatment-inhibits-motility-and-invasion-of-glioblastoma-cancer-cells
#7
Marwa Al Hassan, Isabelle Fakhoury, Zeinab El Masri, Noura Ghazale, Rayane Dennaoui, Oula El Atat, Amjad Kanaan, Mirvat El-Sibai
Glioblastoma multiforme (GBM) is one of the most common and deadliest cancers of the central nervous system (CNS). GBMs high ability to infiltrate healthy brain tissues makes it difficult to remove surgically and account for its fatal outcomes. To improve the chances of survival, it is critical to screen for GBM-targeted anticancer agents with anti-invasive and antimigratory potential. Metformin, a commonly used drug for the treatment of diabetes, has recently emerged as a promising anticancer molecule. This prompted us, to investigate the anticancer potential of metformin against GBMs, specifically its effects on cell motility and invasion...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30034996/class-iii-%C3%AE-tubulin-overexpression-induces-chemoresistance-to-eribulin-in-a-leiomyosarcoma-cell-line
#8
Kenichiro Yahiro, Yoshihiro Matsumoto, Jun-Ichi Fukushi, Ken-Ichi Kawaguchi, Makoto Endo, Nokitaka Setsu, Keiichiro IIda, Suguru Fukushima, Makoto Nakagawa, Atsushi Kimura, Yoshinao Oda, Yasuharu Nakashima
Eribulin is a new drug to treat soft tissue sarcoma (STS) that exerts antitumor activity by binding to microtubules. The prognosis of STS is poor, and eribulin is expected to improve the treatment outcome. We observed several cases that exhibited resistance to eribulin and developed an eribulin-resistant leiomyosarcoma cell line to investigate the mechanism of resistance. The IC50 of eribulin was 125 times higher in the resistant cell line than in the parental cell line, and eribulin did not induce G2/M arrest in resistant cells...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30027065/heparan-sulfate-proteoglycans-in-human-colorectal-cancer
#9
REVIEW
Carolina Meloni Vicente, Daiana Aparecida da Silva, Priscila Veronica Sartorio, Tiago Donizetti Silva, Sarhan Sydney Saad, Helena Bonciani Nader, Nora Manoukian Forones, Leny Toma
Colorectal cancer is the third most common cancer worldwide, accounting for more than 610,000 mortalities every year. Prognosis of patients is highly dependent on the disease stage at diagnosis. Therefore, it is crucial to investigate molecules involved in colorectal cancer tumorigenesis, with possible use as tumor markers. Heparan sulfate proteoglycans are complex molecules present in the cell membrane and extracellular matrix, which play vital roles in cell adhesion, migration, proliferation, and signaling pathways...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/30003010/erythrocyte-senescence-in-a-model-of-rat-displaying-hutchinson-gilford-progeria-syndrome
#10
Manoj Kumar Chaudhary, Syed Ibrahim Rizvi
Background: Increased oxidative stress is a major cause of aging and age-related diseases. Erythrocytes serve as good model for aging studies. Dihydrotachysterol is known to induce premature aging feature in rats mimicking Hutchinson-Gilford progeria syndrome. Aim: In the present study, attempts have been made to explore the differential response of young and senescent erythrocytes separated by density gradient centrifugation from accelerated senescence model of rats mimicking Hutchinson-Gilford progeria syndrome and naturally aged rats...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29888170/anticancer-effects-of-dihydroartemisinin-on-human-esophageal-cancer-cells-in-vivo
#11
Cailing Jiang, Shumin Li, Yanjing Li, Yuxian Bai
Despite recent advances in chemotherapy and surgical resection, the 5-year survival rate of esophageal cancer still remains at the low level. Therefore, it is very important to discover a new agent to improve the life expectancy of patients with esophageal cancer. Dihydroartemisinin (DHA), a semisynthetic derivative of artemisinin, has recently exhibited promising anticancer activity against various cancer cells. But so far, the specific mechanism remains unclear. We have previously demonstrated that DHA reduced viability of esophageal cancer cells in a dose-dependent manner in vitro and induced cell cycle arrest and apoptosis...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29854578/overexpression-of-the-oncogenic-variant-klf6-sv1-in-young-npc-patients-and-correlation-with-lack-of-e-cadherin
#12
Saoussen Debouki-Joudi, Sonia Mhirsi, Nehla Mokni-Baizig, Nihel Ammous-Boukhris, Hayet Mhamdi, Said Gritli, Raja Mokdad Gargouri, Mohamed Nejib Marzouki
Purpose: The transcription factor Krüppel-like factor 6 (KLF6) regulates various cellular functions, such as metabolism, cell proliferation, and differentiation. KLF6 plays a key role in the development and progression of multiple human cancers. Methods: Fifty primary biopsies and 10 normal nasopharyngeal mucosae were used to analyze by RT-QPCR the expression and the copy number of wtKLF6 and the spliced variants (KLF6-SV1, KLF6-SV2, and KLF6-SV3) in Tunisian patients with nasopharyngeal carcinoma...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29854577/the-possible-mechanisms-of-hsv-tk-hyperthermia-combined-with-131i-antiafpmcab-gcv-nanospheres-to-treat-hepatoma
#13
Mei Lin, Chenglin Zhou, Junxing Huang, Weizhong Tian, Hong Yu, Xingmao Jiang, Jun Ye, Ting Guo, Yujuan Shi, Yanhong Xiao, Xuefeng Bian, Xiaoqian Feng
Our previous findings showed a good therapeutic effect of the combination of suicide gene HSV-TK, nuclide 131I, and magnetic fluid hyperthermia (MFH) on hepatoma by using magnetic nanoparticles as linkers, far better than any monotherapy involved, with no adverse effects. This combination therapy might be an eligible strategy to treat hepatic cancer. However, it is not clear how the combination regimen took the therapeutic effects. In the current study, to explore the possible mechanisms of radionuclide-gene therapy combined with MFH to treat hepatoma at tissue, cellular, and molecular levels and to provide theoretical and experimental data for its clinical application, we examined the apoptosis induction of the combination therapy and investigated the expression of the proteins related to apoptosis such as survivin, livin, bcl-2, p53, and nucleus protein Ki67 involved in cell proliferation, detected VEGF, and MVD involved in angiogenesis of tumor tissues and analyzed the pathologic changes after treatment...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29854576/-tremella-fuciformis-polysaccharides-attenuate-oxidative-stress-and-inflammation-in-macrophages-through-mir-155
#14
Yang Ruan, Hong Li, Lianmei Pu, Tao Shen, Zening Jin
Aim: To investigate the function of Tremella fuciformis polysaccharides (TFPS) in LPS-induced inflammation and oxidative stress of macrophages. Methods: RAW264.7 cells were pretreated with TFPS and then stimulated with 0.1  μ g/ml LPS. NF κ B, Akt, p38MAPK, MCP-1, and SOD-1 were analyzed by Western blotting. Cell viability was measured using MTT assays. Reactive oxygen species (ROS) production, real-time PCR, ELISA, and immunofluorescence staining were performed on RAW264...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29854575/the-role-of-immune-defects-and-colonization-of-staphylococcus-aureus-in-the-pathogenesis-of-atopic-dermatitis
#15
REVIEW
Danuta Nowicka, Ewelina Grywalska
Atopic dermatitis (AD) is a condition with a complex and not fully understood etiology. In patients with AD, acute skin lesions are colonized by a greater number of Staphylococcus aureus ( S. aureus ) bacteria than chronic lesions, clinically unchanged atopic skin, or the skin of healthy people. Mechanisms promoting skin colonization by S. aureus include complex interactions among several factors. Apart from increased adhesion of S. aureus in atopic skin, defects of the innate immune response resulting in the lack of restriction of the growth of microorganisms also contribute to susceptibility to colonization by and infection with S...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29850393/differences-in-e-cadherin-and-syndecan-1-expression-in-different-types-of-ameloblastomas
#16
Ramón G Carreón-Burciaga, Rogelio González-González, Nelly Molina-Frechero, Sandra López-Verdín, Vanesa Pereira-Prado, Ronell Bologna-Molina
Ameloblastomas are a group of benign, locally aggressive, recurrent tumors characterized by their slow and infiltrative growth. E-Cadherin and syndecan-1 are cell adhesion molecules related to the behavior of various tumors, including ameloblastomas. Ninety-nine ameloblastoma samples were studied; the expression of E-cadherin and syndecan-1 were evaluated by immunohistochemistry. E-Cadherin and epithelial syndecan-1 were more highly expressed in intraluminal/luminal unicystic ameloblastoma than in mural unicystic ameloblastoma and solid/multicystic ameloblastoma, whereas the stromal expression of syndecan-1 was higher in mural unicystic ameloblastoma and solid/multicystic ameloblastoma...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29850392/stromal-caveolin-1-and-caveolin-2-expression-in-primary-tumors-and-lymph-node-metastases
#17
Wladimir Gerstenberger, Michaela Wrage, Eeva Kettunen, Klaus Pantel, Sisko Anttila, Stefan Steurer, Harriet Wikman
The expression of caveolin-1 (CAV1) in both tumor cell and cancer-associated fibroblasts (CAFs) has been found to correlate with tumor aggressiveness in different epithelial tumor entities, whereas less is known for caveolin-2 (CAV2). The aim of this study was to investigate the clinicopathological significance and prognostic value of stromal CAV1 and CAV2 expression in lung cancer. The expression of these two genes was investigated at protein level on a tissue microarray (TMA) consisting of 161 primary tumor samples...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29850391/biochemical-and-ultrastructural-cardiac-changes-induced-by-high-fat-diet-in-female-and-male-prepubertal-rabbits
#18
Dina Sibouakaz, Khira Othmani-Mecif, Amirouche Fernane, Abdennour Taghlit, Yasmina Benazzoug
Early weight gain induced by high-fat diet has been identified as a predictor for cardiac disease, one of the most serious public health problems. Our goal is to study the influence of a HFD on biochemical, oxidant stress parameters, and the cardiac ultrastructure in both male and female prepubertal models. Experiments were carried on 24 prepubertal New Zealand white rabbits, randomly assigned to male and female control (MC and FC, resp.) or HFD (MHFD and FHFD, resp.) groups ( n = 6) for 3 months. Body and heart weights and some biochemical and oxidative stress parameters such as lipids, calcium, CKMB, MDA, uric acid, ascorbic acid, and AOA are evaluated in plasma and the left ventricle...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29850390/angiodrastic-chemokines-in-colorectal-cancer-clinicopathological-correlations
#19
George Emmanouil, George Ayiomamitis, Adamantia Zizi-Sermpetzoglou, Maria Tzardi, Andrew Moursellas, Argyro Voumvouraki, Elias Kouroumalis
Aim: To study the expression of angiodrastic chemokines in colorectal tumors and correlate findings with clinicopathological parameters and survival. Methods: The proangiogenic factor VEGF, the angiogenic chemokines CXCL8 and CXCL6, and the angiostatic chemokine CXCL4 were measured by ELISA in tumor and normal tissue of 35 stage II and III patients and correlated with the histopathology markers Ki67, p53, p21, bcl2, EGFR, and MLH1 and 5-year survival. The Wilcoxon and chi-square tests were used for statistical comparisons...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29785357/prognostic-significance-of-cyclins-a2-b1-d1-and-e1-and-ccnd1-numerical-aberrations-in-oral-squamous-cell-carcinomas
#20
Luís Silva Monteiro, Márcio Diniz-Freitas, Saman Warnakulasuriya, Tomás Garcia-Caballero, Jerónimo Forteza-Vila, Máximo Fraga
We analysed the expression of cyclins A2, B1, D1, and E1 by immunohistochemistry and numerical aberrations in CCND1 gene by fluorescence in situ hybridization technique in 67 primary oral squamous cell carcinomas (OSCC). Cyclin A2 expression was observed in 54 (83.1%) tumours, cyclin D1 in 58 (89.2%), cyclin B1 in 39 (60%), and cyclin E in 21 (32.8%). CCND1 region analysis revealed 26 (43.3%) tumours with the presence of numerical aberrations which were correlated with cyclin D1 high expression (Rho = 0...
2018: Analytical Cellular Pathology (Amsterdam)
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