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Aldehyde dehydrogenase

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https://www.readbyqxmd.com/read/27910777/gastric-adenocarcinoma-biomarker-expression-profiles-and-their-prognostic-value
#1
Serkan Senol, Abdullah Aydin, Duygu Kosemetin, Dilek Ece, Ibrahim Akalin, Hasan Abuoglu, Esra Akdeniz Duran, Dincer Aydin, Burcak Erkol
Expression levels of several molecules implicated in carcinogenesis were examined by immunohistochemical staining, and the prognostic significance of their expression levels in gastric adenocarcinoma (GA) was evaluated. A total of 115 GA and 20 control gastric tissue samples were evaluated by immunohistochemistry using 33 antibodies targeting molecules known to play a part in the development of various tumors. Overexpression of carbonic anhydrase IX (CAIX) and loss of AT-rich interactive domain-containing protein 1A (ARID1A), aldehyde dehydrogenase 1 (ALDH1), and CD44 expression in GA patients were significantly correlated with lymph node (LN) metastasis, advanced tumor stage, and poor prognosis...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27904609/deciphering-biological-characteristics-of-tumorigenic-subpopulations-in-human-colorectal-cancer-reveals-cellular-plasticity
#2
Hamed Mirzaei, Hossein Salehi, Amirhossein Sahebkar, Amir Avan, Mahmoud Reza Jaafari, Afshin Namdar, Abbas Rezaei, Hamid Reza Mirzaei
BACKGROUND: It is supposed that human colorectal cancer consists of a phenotypically distinct population of tumorigenic cancer cells known as cancer stem cells (CSCs) which play a pivotal role in cancer progression, maintenance, metastasis, and the relapse. The aim of this effort was to investigate and compare biological characterizations of CD133(+) with CD133(-) cell subsets isolated from both primary and metastatic human colorectal tumors. MATERIALS AND METHODS: Using our optimized protocols, unfixed colorectal tumors were enzymatically and mechanically dissociated into single cells followed by evaluation of postdigestion viability...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27904031/variant-aldehyde-dehydrogenase-2-aldh2-2-in-east-asians-interactively-exacerbates-tobacco-smoking-risk-for-coronary-spasm%C3%A3-possible-role-of-reactive-aldehydes
#3
Yuji Mizuno, Seiji Hokimoto, Eisaku Harada, Kenji Kinoshita, Michihiro Yoshimura, Hirofumi Yasue
BACKGROUND: Coronary spastic angina (CSA) is common among East Asians and tobacco smoking (TS) is an established risk factor for CSA. Aldehyde dehydrogenase 2 (ALDH2) plays a key role in removing reactive toxic aldehydes and a deficient variant ALDH2 genotype (ALDH2*2) is prevalent among East Asians. We examined the interaction between TS andALDH2*2as a risk factor for CSA to better understand the disease pathogenesis.Methods and Results:The study subjects comprised 410 patients (258 men, 152 women; mean age, 66...
November 29, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27903987/mapping-heterogeneity-in-patient-derived-melanoma-cultures-by-single-cell-rna-seq
#4
Tobias Gerber, Edith Willscher, Henry Loeffler-Wirth, Lydia Hopp, Dirk Schadendorf, Manfred Schartl, Ulf Anderegg, Gray Camp, Barbara Treutlein, Hans Binder, Manfred Kunz
Recent technological advances in single-cell genomics make it possible to analyze cellular heterogeneity of tumor samples. Here, we applied single-cell RNA-seq to measure the transcriptomes of 307 single cells cultured from three biopsies of three different patients with a BRAF/NRAS wild type, BRAF mutant/NRAS wild type and BRAF wild type/NRAS mutant melanoma metastasis, respectively. Analysis based on self-organizing maps identified sub-populations defined by multiple gene expression modules involved in proliferation, oxidative phosphorylation, pigmentation and cellular stroma...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27900058/effect-of-surgical-wound-fluids-after-intraoperative-electron-radiotherapy-on-the-cancer-stem-cell-phenotype-in-a-panel-of-human-breast-cancer-cell-lines
#5
Karolina Zaleska, Wiktoria Maria Suchorska, Anna Przybyła, Dawid Murawa
The wound healing process after surgery alters the area surrounding the original tumor and around the scar, and the modified microenvironment is more favorable for tumor recurrence. Intraoperative radiotherapy (IORT) is one of the more novel strategies in breast cancer (BC) treatment. Irradiation during surgery has effects on the tumor microenvironment, abrogating the proliferative cascade induced by surgical wound healing. The aim of the present study was to determine the effect of surgical wound fluids from IOERT treatment (RT-WF) compared with wound fluids from conservative-breast surgery only (WF) on the cancer stem cell phenotype in a panel of BC cell lines...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900016/expression-of-aldehyde-dehydrogenase-family-1-member-a1-and-high-mobility-group-box-1-in-oropharyngeal-squamous-cell-carcinoma-in-association-with-survival-time
#6
Xu Qian, Annekatrin Coordes, Andreas M Kaufmann, Andreas E Albers
Despite the development of novel multimodal treatment combinations in advanced oropharyngeal squamous cell carcinoma (OSCC), outcomes remain poor. The identification of specifically validated biomarkers is required to understand the underlying molecular mechanisms, to evaluate treatment efficiency and to develop novel therapeutic targets. The present study, therefore, examined the presence of aldehyde dehydrogenase family 1 member A1 (ALDH1A1) and high mobility group box 1 (HMGB1) expression in primary OSCC and analyzed the impact on survival time...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899990/microarray-analysis-of-differentially-expressed-genes-and-linker-genes-associated-with-the-molecular-mechanism-of-colorectal-cancer
#7
Xingjie Shen, Meng Yue, Fansheng Meng, Jingyu Zhu, Xiaoyan Zhu, Yakun Jiang
Colorectal cancer (CRC) is one of the most prevalent malignancies worldwide and remains the third leading cause of cancer-associated mortality. The present study aimed to fully elucidate the pathogenesis of CRC and identify associated genes in tumor development. Microarray GSE44076, GSE41328 and GSE44861 datasets were downloaded from the Gene Expression Omnibus database and integrated with meta-analysis. Differentially-expressed genes (DEGs) were identified from CRC samples compared with adjacent non-cancerous controls using the Limma package in R, followed by functional analysis using the Database for Annotation, Visualization, and Integrated Discovery online tool...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899932/a-wheat-cinnamyl-alcohol-dehydrogenase-tacad12-contributes-to-host-resistance-to-the-sharp-eyespot-disease
#8
Wei Rong, Meiying Luo, Tianlei Shan, Xuening Wei, Lipu Du, Huijun Xu, Zengyan Zhang
Sharp eyespot, caused mainly by the necrotrophic fungus Rhizoctonia cerealis, is a destructive disease in hexaploid wheat (Triticum aestivum L.). In Arabidopsis, certain cinnamyl alcohol dehydrogenases (CADs) have been implicated in monolignol biosynthesis and in defense response to bacterial pathogen infection. However, little is known about CADs in wheat defense responses to necrotrophic or soil-borne pathogens. In this study, we isolate a wheat CAD gene TaCAD12 in response to R. cerealis infection through microarray-based comparative transcriptomics, and study the enzyme activity and defense role of TaCAD12 in wheat...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27895076/mesothelial-cells-create-a-novel-tissue-niche-that-facilitates-gastric-cancer-invasion
#9
Masamitsu Tanaka, Sei Kuriyama, Go Itoh, Daichi Maeda, Akiteru Goto, Yutaro Tamiya, Kazuyoshi Yanagihara, Masakazu Yashiro, Namiko Aiba
Peritoneal mesothelial cells (PMC) cover organ surfaces in the abdominal cavity. In this study, lineage tracing revealed that PMC guide cancer cell invasion in the gastric wall and in peritoneal metastatic lesions. Serosal PMC covering the stomach surface entered the gastric wall to create a novel niche that favored gastric cancer cell invasion. PMC infiltration was induced by incorporation of cancer cell-derived, Wnt3a-containing extracellular vesicles (EV). Infiltrated PMC in turn promoted subserosal invasion of cancer cells...
November 28, 2016: Cancer Research
https://www.readbyqxmd.com/read/27885254/aldehyde-dehydrogenase-is-used-by-cancer-cells-for-energy-metabolism
#10
Joon Hee Kang, Seon-Hyeong Lee, Dongwan Hong, Jae-Seon Lee, Hee-Sung Ahn, Ju-Hyun Ahn, Tae Wha Seong, Chang-Hun Lee, Hyonchol Jang, Kyeong Man Hong, Cheolju Lee, Jae-Ho Lee, Soo-Youl Kim
We found that non-small-cell lung cancer (NSCLC) cells express high levels of multiple aldehyde dehydrogenase (ALDH) isoforms via an informatics analysis of metabolic enzymes in NSCLC and immunohistochemical staining of NSCLC clinical tumor samples. Using a multiple reaction-monitoring mass spectrometry analysis, we found that multiple ALDH isozymes were generally abundant in NSCLC cells compared with their levels in normal IMR-90 human lung cells. As a result of the catalytic reaction mediated by ALDH, NADH is produced as a by-product from the conversion of aldehyde to carboxylic acid...
November 25, 2016: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/27884109/cloning-functional-expression-and-characterization-of-a-bifunctional-3-hydroxybutanal-dehydrogenase-reductase-involved-in-acetone-metabolism-by-desulfococcus-biacutus
#11
Jasmin Frey, Hendrik Rusche, Bernhard Schink, David Schleheck
BACKGROUND: The strictly anaerobic, sulfate-reducing bacterium Desulfococcus biacutus can utilize acetone as sole carbon and energy source for growth. Whereas in aerobic and nitrate-reducing bacteria acetone is activated by carboxylation with CO2 to acetoacetate, D. biacutus involves CO as a cosubstrate for acetone activation through a different, so far unknown pathway. Proteomic studies indicated that, among others, a predicted medium-chain dehydrogenase/reductase (MDR) superfamily, zinc-dependent alcohol dehydrogenase (locus tag DebiaDRAFT_04514) is specifically and highly produced during growth with acetone...
November 25, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27882330/aldh2-inhibition-potentiates-high-glucose-stress-induced-injury-in-cultured-cardiomyocytes
#12
Guodong Pan, Mandar Deshpande, Rajarajan A Thandavarayan, Suresh Selvaraj Palaniyandi
Aldehyde dehydrogenase (ALDH) gene superfamily consists of 19 isozymes. They are present in various organs and involved in metabolizing aldehydes that are biologically generated. For instance, ALDH2, a cardiac mitochondrial ALDH isozyme, is known to detoxify 4-hydroxy-2-nonenal, a reactive aldehyde produced upon lipid peroxidation in diabetic conditions. We hypothesized that inhibition of ALDH leads to the accumulation of unmetabolized 4HNE and consequently exacerbates injury in cells subjected to high glucose stress...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27878282/the-importance-of-mitochondrial-folate-enzymes-in-human-colorectal-cancer
#13
Masaaki Miyo, Masamitsu Konno, Hugh Colvin, Naohiro Nishida, Jun Koseki, Koichi Kawamoto, Kenta Tsunekuni, Junichi Nishimura, Taishi Hata, Ichiro Takemasa, Tsunekazu Mizushima, Yuichiro Doki, Masaki Mori, Hideshi Ishii
Folate plays a pivotal role in the one-carbon metabolism needed for methylation reactions, nucleotide synthesis, and DNA repair. Although folate metabolism was recently shown to be associated with carcinogenesis in some solid tumors, the importance of folate metabolism in colorectal cancer remains unclear. In the present investigation we found that expression of three mitochondrial folate metabolic enzymes, serine hydroxymethyl transferase (SHMT2), methylenetetrahydrofolate dehydrogenase (MTHFD2) and aldehyde dehydrogenase 1 family member L2 (ALDH1L2), were upregulated in human colorectal tumor tissues compared to normal tissues...
November 22, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27876836/nf-kappa%C3%AE-inducing-kinase-regulates-stem-cell-phenotype-in-breast-cancer
#14
Karla Vazquez-Santillan, Jorge Melendez-Zajgla, Luis Enrique Jimenez-Hernandez, Javier Gaytan-Cervantes, Laura Muñoz-Galindo, Patricia Piña-Sanchez, Gustavo Martinez-Ruiz, Javier Torres, Patricia Garcia-Lopez, Carolina Gonzalez-Torres, Victor Ruiz, Federico Avila-Moreno, Marco Velasco-Velazquez, Mayra Perez-Tapia, Vilma Maldonado
Breast cancer stem cells (BCSCs) overexpress components of the Nuclear factor-kappa B (NF-κB) signaling cascade and consequently display high NF-κB activity levels. Breast cancer cell lines with high proportion of CSCs exhibit high NF-κB-inducing kinase (NIK) expression. The role of NIK in the phenotype of cancer stem cell regulation is poorly understood. Expression of NIK was analyzed by quantitative RT-PCR in BCSCs. NIK levels were manipulated through transfection of specific shRNAs or an expression vector...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27871335/aldehyde-dehydrogenase-expression-in-metaphire-posthuma-as-a-bioindicator-to-monitor-heavy-metal-pollution-in-soil
#15
Raju Panday, Padam Shekhar Bhatt, Tribikram Bhattarai, Kumudini Shakya, Lakshmaiah Sreerama
BACKGROUND: Soil contamination and associated pollution plays a detrimental role in soil flora and fauna. Soil is processed and remodeled by subterranean earthworms, accordingly are referred to as soil chemical engineers. These worms, besides processing carbon and nitrogen, serve as minors for processing metals. In heavy metal contaminated soils, they accumulate heavy metals, which in turn cause altered gene expression, including aldehyde dehydrogenase (ALDH) enzymes. This study explores the possibility of ALDH expression in earthworms as a novel biomarker for the heavy metal contamination of soil...
November 21, 2016: BMC Research Notes
https://www.readbyqxmd.com/read/27866975/expression-of-stem-cell-markers-in-oral-cavity-and-oropharynx-squamous-cell-carcinoma
#16
Flávia Paiva Prudente de Moraes, Silvia Vanessa Lourenço, Renata Carolina Fraga Ianez, Elen Alves de Sousa, Marlon Messias da Conceição Silva, Aline Santos Damascena, Luiz Paulo Kowalski, Fernando Augusto Soares, Cláudia Malheiros Coutinho-Camillo
OBJECTIVES: The aim of this study was to analyze the expression of CD24, CD44, CD133, ALDH1, CD29 (integrin-β1), and Ki-67 in squamous cell carcinoma of the oral cavity and oropharynx. STUDY DESIGN: Fifty-two tumors and 21 metastatic lymph nodes were evaluated by using immunohistochemistry. RESULTS: Seven of 52 cases (13.5%) showed positive cytoplasmic staining of aldehyde dehydrogenase 1; integrin-β1 was expressed in 45 of 50 cases (90%); 30 of 52 cases (57...
September 28, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27863439/re-purposing-of-curcumin-as-an-anti-metastatic-agent-for-the-treatment-of-epithelial-ovarian-cancer-in-vitro-model-using-cancer-stem-cell-enriched-ovarian-cancer-spheroids
#17
Misi He, Dong Wang, Dongling Zou, Chen Wang, Bruno Lopes-Bastos, Wen G Jiang, John Chester, Qi Zhou, Jun Cai
Malignant epithelial ovarian cancer (EOC) spheroids high frequently are detected in the malignant ascites of the patients with the extensive peritoneal metastasis of ovarian cancer, which represent a significant obstacle to efficacious treatment. Clinical data also suggested that EOC spheroids play a putative role in the development of chemoresistance. Since standard surgery and conventional chemotherapy is the only available treatment, there is an urgent need to identify a more effective therapeutic strategy...
November 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27842518/mir-199a-5p-confers-tumor-suppressive-role-in-triple-negative-breast-cancer
#18
Jiawei Chen, Vivian Y Shin, Man T Siu, John C W Ho, Isabella Cheuk, Ava Kwong
BACKGROUND: Triple-negative breast cancer (TNBC) remains a poor prognostic factor for breast cancer since no effective targeted therapy is readily available. Our previous studies confirmed miR-199a-5p is a TNBC-specific circulating biomarker, however, its functional roles in breast cancer is largely unknown. Thus, we investigated the functional implication of miR-199a-5p in TNBC and its potential underlying mechanisms. METHODS: MTT assay was performed to investigate the cell proliferation after transient transfection of miR-199a-5p in MDA-MB-231 cell line, followed by cell cycle analysis...
November 14, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27836845/development-of-a-high-efficiency-transformation-method-and-implementation-of-rational-metabolic-engineering-for-the-industrial-butanol-hyper-producer-clostridium-saccharoperbutylacetonicum-strain-n1-4
#19
Nicolaus A Herman, Jeffrey Li, Ripika Bedi, Barbara Turchi, Xiaoji Liu, Michael J Miller, Wenjun Zhang
: While a majority of academic studies concerning acetone, butanol, ethanol (ABE)-production by Clostridium have focused on C. acetobutylicum, other members of this genus have proven to be effective industrial workhorses despite the inability to perform genetic manipulations on many of these strains. To further improve the industrial performance of these strains in areas such as substrate usage, solvent production, and end-product versatility, transformation methods and genetic tools are needed to overcome the genetic intractability displayed by these species...
November 11, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27835996/developing-precision-medicine-for-people-of-east-asian-descent
#20
REVIEW
Stacy L McAllister, Katherine Sun, Eric R Gross
The goal of precision medicine is to separate patient populations into groups to ultimately provide customized care tailored to patients. In terms of precision medicine, ~540 million people in the world have a genetic variant of the aldehyde dehydrogenase 2 (ALDH2) enzyme causing a flushing response and tachycardia after alcohol consumption. The genetic variant is identified as ALDH2*2 and originates from East Asian descendants of the Han Chinese. The variant is particularly important to consider when discussing lifestyle choices with patients in terms of risk for developing specific diseases, preventative screening, and selection of medications for treatment...
November 11, 2016: Journal of Biomedical Science
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