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https://www.readbyqxmd.com/read/29241710/new-insights-into-the-gene-expression-associated-to-amyotrophic-lateral-sclerosis
#1
REVIEW
Daniela Recabarren-Leiva, Marcelo Alarcón
Amyotrophic lateral sclerosis (ALS) is the most prevalent neuromuscular disease worldwide. It is a lethal and progressive neurodegenerative disease, principally affecting motor neurons; patient clinical characteristics are muscle weakness, dysphagia and respiratory failure. The mean age is related to family history (40years, familial ALS or FALS) or with no family history (50years), but it is more common in people aged 60-69years. The cause of ALS is not known and it is not known yet why it affects some people and not others...
December 11, 2017: Life Sciences
https://www.readbyqxmd.com/read/29156776/uchl1-expression-and-localization-on-testicular-development-and-spermatogenesis-of-chinese-giant-salamanders
#2
Yuanxian Wang, Liqing Wang, Huihui Gao, Yao Gao, Changming Yang, Hong Ji, Wuzi Dong
Ubiquitin carboxyl-terminal hydrolase L1 (UCHL1), which is extensively expressed in vertebrates, is a deubiquitinating enzymes that inhibits the degradation of proteins by reversing ubiquitination modification. Herein, a 1087-bp sequence encoding UCHL1 was identified from the Chinese giant salamander (CGS; Andrias davidianus). The coding sequences (CDS) of UCHL1 encoded a putative poly peptide of 222 amino acids. The CGS UCHL1 isoforms were more related to their human and mouse counterparts. The phylogenic tree of vertebrate UCHL1 indicated that CGS UCHL1 has the closest relationship with human UCHL1 (up to 73...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156418/characterization-of-domestic-pig-spermatogenesis-using-spermatogonial-stem-cell-markers-in-the-early-months-of-life
#3
Julio Almunia, Kotono Nakamura, Mami Murakami, Shigeo Takashima, Masaki Takasu
In pigs, spermatogonial stem cells (SSCs), which include gonocytes and undifferentiated spermatogonia, are classically defined as being present till up to 2 months of life. However, knowledge about this transition from gonocytes to undifferentiated spermatogonia in pigs is limited. In this study, we characterized pig SSCs in neonatal (n = 6), one-month-old (1-mo-old, n = 6), two-month-old (2-mo-old, n = 6), and adult testes (n = 6) anatomically, histologically, and immunohistologically. Anatomically, testicular circumference (TC) was measured at each development stage...
November 3, 2017: Theriogenology
https://www.readbyqxmd.com/read/29150024/decreased-uchl1-expression-as-a-cytologic-biomarker-for-aggressive-behavior-in-pancreatic-neuroendocrine-tumors
#4
Maureen D Moore, Brendan Finnerty, Katherine D Gray, Rana Hoda, Yi-Fan Liu, Lauren Soong, Toni Beninato, Rema Rao, Rasa Zarnegar, Thomas J Fahey
BACKGROUND: There are currently no reliable markers associated with aggressive behavior in well-differentiated and moderately differentiated pancreatic neuroendocrine tumors. We aimed to determine whether expression of ubiquitin carboxyl-terminal hydrolase L1 in conjunction with Ki67 can identify metastatic potential of well-differentiated and moderately differentiated pancreatic neuroendocrine tumors from fine-needle aspiration samples obtained by endoscopic ultrasound. METHODS: Retrospective review of 48 patients with well-differentiated and moderately differentiated pancreatic neuroendocrine tumors diagnosed by endoscopic ultrasound fine-needle aspiration at a single center identified 35 biopsy samples with adequate material for analysis...
November 14, 2017: Surgery
https://www.readbyqxmd.com/read/29126443/ubiquitin-c-terminal-hydrolase-isozyme-l1-is-associated-with-shelterin-complex-at-interstitial-telomeric-sites
#5
Aleksandar Ilic, Sumin Lu, Vikram Bhatia, Farhana Begum, Thomas Klonisch, Prasoon Agarwal, Wayne Xu, James R Davie
BACKGROUND: Ubiquitin C-terminal hydrolase isozyme L1 (UCHL1) is primarily expressed in neuronal cells and neuroendocrine cells and has been associated with various diseases, including many cancers. It is a multifunctional protein involved in deubiquitination, ubiquitination and ubiquitin homeostasis, but its specific roles are disputed and still generally undetermined. RESULTS: Herein, we demonstrate that UCHL1 is associated with genomic DNA in certain prostate cancer cell lines, including DU 145 cells derived from a brain metastatic site, and in HEK293T embryonic kidney cells with a neuronal lineage...
November 10, 2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/29080080/ubiquitin-carboxyl-terminal-hydrolases-involvement-in-cancer-progression-and-clinical-implications
#6
Ying Fang, Xizhong Shen
Protein ubiquitination and deubiquitination participate in a number of biological processes, including cell growth, differentiation, transcriptional regulation, and oncogenesis. Ubiquitin C-terminal hydrolases (UCHs), a subfamily of deubiquitinating enzymes (DUBs), includes four members: UCH-L1/PGP9.5 (protein gene product 9.5), UCH-L3, UCHL5/UCH37, and BRCA1-associated protein-1 (BAP1). Recently, more attention has been paid to the relationship between the UCH family and malignancies, which play different roles in the progression of different tumors...
October 27, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28981341/biofluid-biomarkers-of-traumatic-brain-injury
#7
Denes V Agoston, Andrew Shutes-David, Elaine R Peskind
PRIMARY OBJECTIVE: The purpose of this paper is to review the clinical and research utility and applications of blood, cerebrospinal fluid (CSF), and cerebral microdialysis biomarkers in traumatic brain injury (TBI). RESEARCH DESIGN: Not applicable. METHODS AND PROCEDURES: A selective review was performed on these biofluid biomarkers in TBI. MAIN OUTCOME AND RESULTS: Neurofilament heavy chain protein (NF-H), glial fibrillary acidic protein (GFAP), ubiquitin C-terminal hydrolase-L1 (UCHL1), neuron-specific enolase (NSE), myelin basic protein (MBP), tau, and s100β blood biomarkers are elevated during the acute phase of severe head trauma but have key limitations in their research and clinical applications to mild TBI (mTBI)...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28978976/subcutaneous-adipose-tissue-gene-expression-and-dna-methylation-respond-to-both-short-and-long-term-weight-loss
#8
S Bollepalli, S Kaye, S Heinonen, J Kaprio, A Rissanen, K A Virtanen, K H Pietiläinen, M Ollikainen
BACKGROUND: Few studies have examined both gene expression and DNA methylation profiles in subcutaneous adipose tissue (SAT) during long-term weight loss. Thus molecular mechanisms in weight loss and regain remain elusive. PARTICIPANTS/METHODS: We performed a one-year weight loss intervention on 19 healthy obese participants (mean BMI 34.6 kg/m(2)) and studied longitudinal gene expression (Affymetrix Human Genome U133 Plus 2.0) and DNA methylation (Infinium HumanMethylation450 BeadChip) in SAT at 0, 5 and 12 months...
October 5, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28940383/immunoproteasome-in-the-blood-plasma-of-children-with-acute-appendicitis-and-its-correlation-with-proteasome-and-uchl1-measured-by-spr-imaging-biosensors
#9
E Matuszczak, A Sankiewicz, W Debek, E Gorodkiewicz, R Milewski, A Hermanowicz
The aim of this study was to determinate the immunoproteasome concentration in the blood plasma of children with appendicitis, and its correlation with circulating proteasome and ubiquitin carboxyl-terminal hydrolase L1 (UCHL1). Twenty-seven children with acute appendicitis, managed at the Paediatric Surgery Department, were included randomly into the study (age 2 years 9 months up to 14 years, mean age 9·5 ± 1 years). There were 10 girls and 17 boys; 18 healthy, age-matched subjects, admitted for planned surgeries served as controls...
September 23, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28935764/ubiquitin-recognition-of-bap1-understanding-its-enzymatic-function
#10
Pranita Hanpude, Sushmita Bhattacharya, Abhishek Kumar Singh, Tushar Kanti Maiti
BRCA1-associated protein 1 (BAP1) is a nuclear localizing UCH, having tumor suppressor activity and is widely involved in many crucial cellular processes. BAP1 has garnered attention for its links with cancer, however, the molecular mechanism in the regulation of cancer by BAP1 has not been established. Amongst the four UCHs, only BAP1 and UCHL5 are able to hydrolyze small and large ubiquitin adducts but UCHL5 hydrolyzes only when it is present in the PA700 complex of the proteasome. The ability of BAP1 to cleave large ubiquitin derivatives is because of its relatively longer active-site crossover loop than other UCHs...
October 31, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28836754/cell-lysate-based-alphalisa-deubiquitinase-assay-platform-for-identification-of-small-molecule-inhibitors
#11
Christine A Ott, Bolormaa Baljinnyam, Alexey V Zakharov, Ajit Jadhav, Anton Simeonov, Zhihao Zhuang
The deubiquitinases, or DUBs, are associated with various human diseases, including neurological disorders, cancer, and viral infection, making them excellent candidates for pharmacological intervention. Drug discovery campaigns against DUBs require enzymatic deubiquitination assays amenable for high-throughput screening (HTS). Although several DUB substrates and assays have been developed in recent years, they are largely limited to recombinantly purified DUBs. Many DUBs are large multidomain proteins that are difficult to obtain recombinantly in sufficient quantities for HTS...
September 15, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28803986/ubiquitin-c-terminal-hydrolase-l1-regulates-myoblast-proliferation-and-differentiation
#12
Hongbo Gao, Sigurd Hartnett, Yifan Li
Skeletal muscles are dynamic tissues that possess regenerative abilities, which require multiple processes and regulatory factors. Ubiquitin C-Terminal Hydrolase L1 (UCHL1), which is primarily expressed in neuronal tissues, was upregulated in skeletal muscles in disease conditions but its functional role in skeletal muscles is unknown. Using mouse myoblast cells C2C12 as an in vitro model, this study reported that UCHL1 elicits different regulation in myoblast cell proliferation and differentiation. We first observed that UCHL1 protein level was continuously declined during cell differentiation...
October 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28782835/identification-and-functional-analysis-of-a-potential-key-lncrna-involved-in-fat-loss-of-cancer-cachexia
#13
Huiquan Liu, Ting Zhou, Bangyan Wang, Lu Li, Dawei Ye, Shiying Yu
Cancer cachexia is a devastating, multifactorial, and irreversible syndrome characterized by skeletal muscle reduction with or without fat loss. Although much attention has been focused on muscle wasting, fat loss may occur earlier and accelerate muscle wasting in cachexia. The cause of 20% of cancer related death makes it urgent to discover molecular mechanisms behind cancer cachexia. Here we applied weighted gene co-expression network analysis (WGCNA) to identify cachexia related gene modules using differentially expressed 3289 genes and 59 long non-coding RNAs based on microarray data of cachectic and non-cachectic subcutaneous adipose tissue...
August 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28765971/identification-of-key-genes-and-pathways-in-parkinson-s-disease-through-integrated-analysis
#14
Jingru Wang, Yining Liu, Tuanzhi Chen
Parkinson's disease (PD) is a progressive, degene-rative neurological disease, typically characterized by tremors and muscle rigidity. The present study aimed to identify differe-ntially expressed genes (DEGs) between patients with PD and healthy patients, and clarify their association with additional biological processes that may regulate factors that lead to PD. An integrated analysis of publicly available Gene Expression Omnibus datasets of PD was performed. DEGs were identified between PD and normal blood samples...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28761052/uchl1-hif-1-axis-mediated-antioxidant-property-of-cancer-cells-as-a-therapeutic-target-for-radiosensitization
#15
Ryota Nakashima, Yoko Goto, Sho Koyasu, Minoru Kobayashi, Akiyo Morinibu, Michio Yoshimura, Masahiro Hiraoka, Ester M Hammond, Hiroshi Harada
Hypoxia-inducible factor 1 (HIF-1) has been recognized as an important mediator of the reprogramming of carbohydrate metabolic pathways from oxidative phosphorylation to accelerated glycolysis. Although this reprogramming has been associated with the antioxidant and radioresistant properties of cancer cells, gene networks triggering the HIF-1-mediated reprogramming and molecular mechanisms linking the reprogramming with radioresistance remain to be determined. Here, we show that Ubiquitin C-terminal hydrolase-L1 (UCHL1), which we previously identified as a novel HIF-1 activator, increased the radioresistance of cancer cells by producing an antioxidant, reduced glutathione (GSH), through HIF-1-mediated metabolic reprogramming...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28726275/cpkc%C3%AE-mediated-down-regulation-of-uchl1-alleviates-ischaemic-neuronal-injuries-by-decreasing-autophagy-via-erk-mtor-pathway
#16
Dan Zhang, Song Han, Shizun Wang, Yanlin Luo, Li Zhao, Junfa Li
Stroke is one of the leading causes of death in the world, but its underlying mechanisms remain unclear. Both conventional protein kinase C (cPKC)γ and ubiquitin C-terminal hydrolase L1 (UCHL1) are neuron-specific proteins. In the models of 1-hr middle cerebral artery occlusion (MCAO)/24-hr reperfusion in mice and 1-hr oxygen-glucose deprivation (OGD)/24-hr reoxygenation in cortical neurons, we found that cPKCγ gene knockout remarkably aggravated ischaemic injuries and simultaneously increased the levels of cleaved (Cl)-caspase-3 and LC3-I proteolysis product LC3-II, and the ratio of TUNEL-positive cells to total neurons...
July 20, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28688920/single-cell-rna-sequencing-reveals-an-altered-gene-expression-pattern-as-a-result-of-crispr-cas9-mediated-deletion-of-gene-33-mig6-and-chronic-exposure-to-hexavalent-chromium-in-human-lung-epithelial-cells
#17
Soyoung Park, Xiaowen Zhang, Cen Li, Changhong Yin, Jiangwei Li, John T Fallon, Weihua Huang, Dazhong Xu
Gene 33 (Mig6, ERRFI1) is an adaptor protein with multiple cellular functions. We recently reported that depletion of this protein promotes lung epithelial cell transformation induced by hexavalent chromium [Cr(VI)]. However, the early molecular events that mediate this process are not clear. In the present study, we used single-cell RNA sequencing to compare gene expression profiles between BEAS-2B lung epithelial cells chronically exposed to a sublethal dose of Cr(VI) with or without CRISPR/cas9-mediated deletion of Gene 33...
September 1, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28667290/activation-of-hepatic-stellate-cells-by-the-ubiquitin-c-terminal-hydrolase-1-protein-secreted-from-hepatitis-c-virus-infected-hepatocytes
#18
Ju-Chien Cheng, Ching-Ping Tseng, Mei-Huei Liao, Cheng-Yuan Peng, Jau-Song Yu, Po-Heng Chuang, Jing-Tang Huang, Jeremy J W Chen
Hepatitis C virus (HCV) infection of hepatocytes promotes liver fibrosis by activation of hepatic stellate cells (HSCs) and excessive deposition of extracellular matrix in liver tissue. Whether or not host factors released from the HCV-infected hepatocytes play role in HSCs activation is unclear. In this study, HSCs were activated by the conditioned medium derived from HCV replicon cells. Secretomic profiling of HCV replicon cells and the parental Huh7 cells revealed ubiquitin carboxy-terminal hydrolase L1 (UCHL1) as a novel secreted protein from HCV-infected hepatocytes...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28636190/uch-l1-promotes-invasion-of-breast-cancer-cells-through-activating-akt-signaling-pathway
#19
Yanhong Luo, Jianfeng He, Chunlin Yang, Matthew Orange, Xingcong Ren, Nick Blair, Tao Tan, Jin-Ming Yang, Hua Zhu
As a de-ubiquitin enzyme, ubiquitin C-terminal hydrolase (UCH)-L1 has been shown to be overexpressed in several human cancers. However, the function of UCH-L1 in invasion of breast cancers is still unclear. Here we report that the expression of UCH-L1 is significantly higher in cancer cells with higher invasive ability. While ectopic UCH-L1 expression failed to alter cell proliferation in MCF-7 cells, it caused a significant upregulation of cellular invasion. Furthermore, siRNA mediated knockdown of UCH-L1 led to suppression of invasion in UCH-L1 overexpressing MCF-7 cells...
June 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28635516/concentration-of-uhcl1-in-the-serum-of-children-with-acute-appendicitis-before-and-after-surgery-and-its-correlation-with-crp-and-prealbumin
#20
Ewa Matuszczak, Marzena Tylicka, Wojciech Dębek, Anna Tokarzewicz, Ewa Gorodkiewicz, Adam Hermanowicz
Ubiquitin-mediated protein degradation plays a crucial role in various cellular processes, including signal transduction, cell differentiation, and stress response. Ubiquitin C-terminal hydrolase 1 (UCHL1) is a unique deubiquitinating enzyme that has both hydrolase and ligase activities. The aim of this study was the determination of UCHL1 concentration in serum of children with appendicitis, before and after the surgery. MATERIAL AND METHODS: 42 children with acute appendicitis, who were managed at the Pediatric Surgery Department, between 2013 and 2014, were randomly included into the study (age 9 months up to 14 years, mean age 2...
February 27, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
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