Read by QxMD icon Read

Cancer Genomics & Proteomics

Akihide Kondo, Yuzaburo Shimizu, Satoshi Adachi, Ikuko Ogino, Mario Suzuki, Osamu Akiyama, Hajime Arai
BACKGROUND: Fusion genes driving tumourigenesis have drawn the attention of researchers and oncologists. Despite the importance of such molecular alterations, there are no comprehensive reproducible methods for detecting fusion genes. MATERIALS AND METHODS: Nineteen paediatric brain tumours of five types, namely pilocytic astrocytoma, oligodendroglioma, anaplastic astrocytoma, glioblastoma and, ganglioglioma, were examined to detect fusion genes using a pyrosequencing-based method following RNA isolation, cDNA synthesis and real-time polymerase chain reaction...
July 2018: Cancer Genomics & Proteomics
Yoon Hee Lee, Min Kyung Kim, Hee Young Moon, Gun Oh Chong, Hyun Jung Lee, Yoon Soon Lee, Ji Young Park, Chan Hyeong Lee, Moon Chang Baek, Dae Gy Hong
BACKGROUND/AIM: This study was designed to identify candidate proteins which can be used for visualization of pelvic autonomic nerve during nerve-sparing surgery. MATERIALS AND METHODS: Both soft tissue and vesical branch of the inferior hypogastric nerve from five women were collected during surgery. These 10 tissue specimens were analysed using liquid chromatography-mass spectrometry (LC-MS) and Human Protein Atlas (HPA) for protein expression. The existence of nerve fibres was confirmed using haematoxylin and eosin (H&E) and anti-S-100 staining...
July 2018: Cancer Genomics & Proteomics
Elżbieta Fiedor, Karolina Zajda, Ewa L Gregoraszczuk
BACKGROUND/AIM: A common finding in cancer cells is the overexpression of histone deacetylases (HDACs), leading to altered expression and activity of numerous proteins involved in carcinogenesis. Considering that leptin can modulate the levels of HDACs, we hypothesised that leptin receptor antagonists can alter HDAC expression. MATERIALS AND METHODS: HDAC expression in cells exposed to leptin and leptin receptor antagonists (SHLA and Lan2) were evaluated in ovarian epithelial (OVCAR-3, CaOV3) and folliculoma (COV434, KGN) cells...
July 2018: Cancer Genomics & Proteomics
Petr Karasek, Natalia Gablo, Jan Hlavsa, Igor Kiss, Petra Vychytilova-Faltejskova, Marketa Hermanova, Zdenek Kala, Ondrej Slaby, Vladimir Prochazka
Blood plasma microRNAs (miRNAs) are emerging as a clinically useful tool for non-invasive detection and prognosis estimation in various cancer types including pancreatic ductal adenocarcinoma (PDAC). The aim of the present study was to provide an independent validation of circulating miRNAs identified in previous studies as diagnostic and/or prognostic biomarkers in PDAC. Based on the literature search, 6 miRNAs were chosen as candidates for independent validation; miR-21-5p, miR-375, miR-155, miR-17-5p, miR-126-5p and miR-1290...
July 2018: Cancer Genomics & Proteomics
Dai Shimizu, Tomoko Saito, Shuhei Ito, Takaaki Masuda, Junji Kurashige, Yosuke Kuroda, Hidetoshi Eguchi, Yasuhiro Kodera, Koshi Mimori
BACKGROUND: Peritoneal dissemination (PD) is one of the most common causes of cancer-related mortality in gastric cancer (GC). We aimed to identify PD-associated genes and investigate their role in GC. MATERIALS AND METHODS: We identified FGFR1 as a putative PD-associated gene using a bioinformatics approach. The biological significance of FGFR1 in epithelial-to-mesenchymal transition (EMT) was evaluated according to the correlation with genes that participated in EMT and FGFR1 knockdown experiments...
July 2018: Cancer Genomics & Proteomics
Mario Menschikowski, Carsten Jandeck, Markus Friedemann, Susan Richter, Dana Thiem, Björn Sönke Lange, Meinolf Suttorp
BACKGROUND/AIM: DNA methylation plays an important role in the initiation and propagation of carcinogenesis; however, the role of heterogeneously methylated epialleles is currently not well studied, also due to the lack of sensitive, unbiased and high throughput methods. Here, a newly developed droplet digital PCR (ddPCR)-based method was evaluated regarding its ability to quantify such heterogeneously methylated epialleles with sufficient analytical sensitivity and specificity. MATERIALS AND METHODS: Genomic DNA from blood leukocytes and bone marrow aspirate of an 8-year old male with B-cell acute lymphoblastic leukemia (B-ALL) and from normal and malignant prostate cell lines were analysed using ddPCR...
July 2018: Cancer Genomics & Proteomics
Jinyoung Jeon, Lee-So Maeng, Yoon Jin Bae, Eui-Jin Lee, Young Chul Yoon, Nara Yoon
BACKGROUND/AIM: Combined hepatocellular-cholangiocarcinoma (cHCC-CC) is a very rare type of tumor, comprising these two different components in a single mass. Although several studies have determined the genetic characteristics of cHCC-CC, next-generation sequencing (NGS) data for comparing clonality of cHCC-CC are currently unavailable. MATERIALS AND METHODS: Four cHCC-CC cases were selected and HCC, CC and normal components from each case were separately micro-dissected...
July 2018: Cancer Genomics & Proteomics
Oh Kwang Kwon, Ju Mi Jeon, Eunji Sung, Ann-Yea Na, Sun Joo Kim, Sangkyu Lee
BACKGROUND: Secreted proteins play an important role in promoting cancer (PCa) cell migration and invasion. Proteogenomics helps elucidate the mechanism of diseases, discover therapeutic targets, and generate biomarkers for diagnosis through protein variations. MATERIALS AND METHODS: We carried out mass a spectrometry-based proteomic analysis of the conditioned media (CM) from two human prostate cancer cell lines, belonging to different metastatic sites, to identify potential metastatic and/or aggressive factors...
July 2018: Cancer Genomics & Proteomics
Steven Lehrer, Peter H Rheinstein, Kenneth E Rosenzweig
BACKGROUND/AIM: Glioblastoma multiforme (GBM) is the most common primary tumor of the central nervous system. The serum and glucocorticoid-regulated kinase SGK1 gene is required for the growth and survival of GBM stem-like cells under both normoxic and hypoxic conditions. It has been reported that oxygenation significantly affects cellular genetic expression; 30% of the genes required in hypoxia were not required under normoxic conditions. Therefore, we examined SGK1 expression to determine if it may be a novel potential drug target for GBM...
July 2018: Cancer Genomics & Proteomics
Dayana Reverón, Christian López, Sylvia Gutiérrez, Zena E Sayegh, Teresita Antonia, Julie Dutil, Mokenge Malafa, Domenico Coppola
BACKGROUND/AIM: Microsatellite instability (MSI) results from genetic alterations involving the mismatch repair (MMR) genes MLH1, PSM2, MSH2, and MSH6. MSI has been implicated in both sporadic CRC and Lynch syndrome. The aim of the study was to assess the frequency of alterations in MMR protein expression in both primary colorectal cancer and precursor lesions among Puerto Rican patients. PATIENTS AND METHODS: A retrospective study of 84 Puerto Rican patients was performed to assess the frequency of MMR protein expression alterations in both primary CRC and precursor lesions using tissue microarray and immunohistochemistry...
July 2018: Cancer Genomics & Proteomics
Elizabeth A Mazzio, Charles A Lewis, Rashid Elhag, Karam F Soliman
Sepantronium bromide (YM-155) is believed to elicit apoptosis and mitotic arrest in tumor cells by reducing (BIRC5, survivin) mRNA. In this study, we monitored changes in survivin mRNA and protein after treating MDA-MB-231 cells with YM-155 concurrent with evaluation of whole transcriptomic (WT) mRNA and long intergenic non-coding RNA at 2 time points: 8 h sub-lethal (83 ng/mL) and 20 h at the LC50 (14.6 ng/mL). The data show a tight association between cell death and the precipitating loss of survivin protein and mRNA (-2...
July 2018: Cancer Genomics & Proteomics
Dipanjan Basu, Cláudia M Salgado, Bruce Bauer, Yasmin Khakoo, Janki R Patel, Ryan M Hoehl, Dominique M Bertolini, Joie Zabec, Morgan R Brzozowski, Miguel Reyes-Múgica
BACKGROUND: Omipalisib has been found to affect the viability of cancer cells. However, its effect on clonogenicity - a feature of cancer stem cells, is not clear. Cells isolated from neurocutaneous melanocytosis (NCM) patients' lesions grow clonogenically. The aim of this study was to investigate the effect of omipalisib treatment on clonogenic growth of NCM cells in vitro. MATERIALS AND METHODS: Clonogenic growth efficiency was evaluated by colony formation assays with or without specific growth factors...
July 2018: Cancer Genomics & Proteomics
Ulrich H Weidle, Fabian Birzele, Georg Tiefenthaler
In this review we summarize the principles of anti-metastatic therapy with selected serpin family proteins, such as pigment epithelial-derived factor (PEDF) and maspin, as well as inter α-trypsin inhibitor (IαIs) light chains (bikunin) and heavy chains (ITIHs). Case-by-case, antimetastatic activity may be dependent or independent of the protease-inhibitory activity of the corresponding proteins. We discuss the incidence of target deregulation in different tumor entities, mechanisms of deregulation, context-dependent functional issues as well as in vitro and in vivo target validation studies with transfected tumor cells or recombinant protein as anti-metastatic agents...
July 2018: Cancer Genomics & Proteomics
Tomoko Takimoto-Shimomura, Hisao Nagoshi, Saori Maegawa, Yuto Fujibayashi, Taku Tsukamoto, Yayoi Matsumura-Kimoto, Yoshimi Mizuno, Yoshiaki Chinen, Shinsuke Mizutani, Yuji Shimura, Shigeo Horiike, Masafumi Taniwaki, Tsutomu Kobayashi, Junya Kuroda
BACKGROUND/AIM: Bendamustine hydrochloride (BH) is a key therapeutic agent for mantle cell lymphoma (MCL), while the mechanism underlying BH-resistance has not been verified. MATERIALS AND METHODS: We compared molecular/biological characteristics of a newly-generated MCL-derived cell line KPUM-YY1 and its BH-resistant subline KPUM-YY1R. RESULTS: The growth-inhibitory IC50 for BH was 20 μM in KPUM-YY1 cells, while cell proliferation was not inhibited by up to 60 μM BH in KPUM-YY1R cells...
May 2018: Cancer Genomics & Proteomics
Te-Cheng Yueh, Cheng-Nan Wu, Yi-Wen Hung, Wen-Shin Chang, Chun-Kai Fu, Jen-Sheng Pei, Ming-Hsien Wu, Yi-Liang Lai, Yi-Min Lee, Shiou-Ting Yen, Hsin-Ting Li, Chia-Wen Tsai, DA-Tian Bau
BACKGROUND/AIM: Matrix metalloproteinases (MMPs) play important roles in inflammation and carcinogenesis, but the genotypic role of MMP-7 has never been investigated in colorectal cancer (CRC) among the Taiwanese. Therefore, in this study we aimed to evaluate the contribution of MMP-7 genotypes to the risk of CRC in Taiwan. MATERIALS AND METHODS: In this case-control study, MMP-7 A-181G and C-153T promoter genotypes were determined and their association with CRC risk were investigated among 362 CRC patients and 362 age- and gender-matched healthy controls...
May 2018: Cancer Genomics & Proteomics
Kevin G Neill, James Saller, Sameer Al Diffalha, Barbara A Centeno, Mokenge P Malafa, Domenico Coppola
Solid-pseudopapillary neoplasm of the pancreas (SPN) is a rare neoplasm that is typically indolent in nature. Surgical resection is the preferred method of treatment and often associated with a good prognosis. Local invasion and metastasis have been reported in a small subset of patients. Currently, there are limited data on the molecular mutation profile of invasive and metastatic SPN. In this report, we present the case of a 38-year-old female with a locally-invasive and unresectable SPN that, despite exhaustive chemoradiotherapy, progressed to liver metastasis...
May 2018: Cancer Genomics & Proteomics
Ioannis Panagopoulos, Ludmila Gorunova, Marius Lund-Iversen, Kristin Andersen, Hege Kilen Andersen, Ingvild Lobmaier, Bodil Bjerkehagen, Sverre Heim
BACKGROUND: Spindle cell/pleomorphic lipomas are benign tumors. Here, we present our cytogenetic data on 31 such tumors. MATERIALS AND METHODS: G-banding chromosome analysis and (in selected cases) fluorescence in situ hybridization (FISH) using probes for FOXO1, RB1, and HMGA2 were performed. RESULTS: Rearrangements of chromosome 13 were found in 58% of tumors. Chromosomes 6, 1, 12, and 11 were also involved in 42%, 26%, 26%, and 23% of tumors, respectively...
May 2018: Cancer Genomics & Proteomics
Bradford D Wilson, Luisel J Ricks-Santi, Tshela E Mason, Muneer Abbas, Rick A Kittles, Georgia M Dunston, Yasmine M Kanaan
BACKGROUND/AIM: Prostate cancer is the most common malignancy in US males. African American men have higher incidence and mortality rates than European Americans. Five single nucleotide polymorphisms are associated with PCa. We hypothesized haplotypes inferred from these SNPs are also associated with PCa. PATIENTS AND METHODS: We genotyped SNPs in a case-control admixture mapping study. SNP haplotypes inferred for 157 PCa cases and 150 controls were used in the regression analysis...
May 2018: Cancer Genomics & Proteomics
Benedikt Kramer, Max Polit, Richard Birk, Nicole Rotter, Christoph Aderhold
BACKGROUND/AIM: Targeted therapy in head and neck squamous cell carcinoma (HNSCC) is limited. HIF-1α and mTOR are involved in the formation of local tumor progression and distant metastasis. The present study analyzed the influence of well-established tyrosine kinase inhibitors nilotinib, dasatinib, erlotinib and gefitinib on the expression of HIF-1α and mTOR in p16-positive and -negative squamous cancer cells (SCC) in vitro in order to develop novel strategies in the treatment of HNSCC...
May 2018: Cancer Genomics & Proteomics
Norihisa Saeki, Akira Saito, Yuki Sugaya, Mitsuhiro Amemiya, Hiroe Ono, Rie Komatsuzaki, Kazuyoshi Yanagihara, Hiroki Sasaki
BACKGROUND/AIM: Overall survival for the high-risk group of neuroblastoma (NB) remains at 40-50%. An integrative genomics study revealed that LIM domain only 1 (LMO1) encoding a transcriptional regulator to be an NB-susceptibility gene with a tumor-promoting activity, that needs to be revealed. MATERIALS AND METHODS: We conducted chromatin immunoprecipitation and DNA sequencing analyses and cell proliferation assays on two NB cell lines. RESULTS: We identified three genes regulated by LMO1 in the cells, LIM and senescent cell antigen-like domains 1 (LIMS1), Ras suppressor protein 1 (RSU1) and relaxin 2 (RLN2)...
May 2018: Cancer Genomics & Proteomics
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"