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Angiogenin

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https://www.readbyqxmd.com/read/29660986/gold-nanoparticles-functionalized-with-angiogenin-mimicking-peptides-modulate-cell-membrane-interactions
#1
Lorena M Cucci, Alessia Munzone, Irina Naletova, Antonio Magrì, Diego La Mendola, Cristina Satriano
Angiogenin is a protein crucial in angiogenesis, and it is overexpressed in many cancers and downregulated in neurodegenerative diseases, respectively. The protein interaction with actin, through the loop encompassing the 60-68 residues, is an essential step in the cellular cytoskeleton reorganization. This, in turn, influences the cell proliferation and migration processes. In this work, hybrid nanoassemblies of gold nanoparticles with angiogenin fragments containing the 60-68 sequence were prepared and characterized in their interaction with both model membranes of supported lipid bilayers (SLBs) and cellular membranes of cancer (neuroblastoma) and normal (fibroblasts) cell lines...
April 16, 2018: Biointerphases
https://www.readbyqxmd.com/read/29660846/phospholipase-d2-promotes-disease-progression-of-renal-cell-carcinoma-through-the-induction-of-angiogenin
#2
Shuya Kandori, Takahiro Kojima, Taeko Matsuoka, Takayuki Yoshino, Aiko Sugiyama, Eijiro Nakamura, Toru Shimazui, Yuji Funakoshi, Yasunori Kanaho, Hiroyuki Nishiyama
A hallmark of clear cell renal cell carcinoma (ccRCC) is the presence of intracellular lipid droplets (LD) and it is assumed that phosphatidic acid (PA) produced by phospholipase D (PLD) plays some roles in the LD formation. However, little is known about the significance of PLD in ccRCC. In this study, we examined the expression levels of PLD in ccRCC. The classical mammalian isoforms of PLD are PLD1 and PLD2, and the levels of both mRNAs were higher at the primary tumor sites than in normal kidney tissues...
April 16, 2018: Cancer Science
https://www.readbyqxmd.com/read/29619653/quality-control-of-commercial-bovine-lactoferrin
#3
Hiroyuki Wakabayashi, Koji Yamauchi, Fumiaki Abe
Herein we review commercial bovine lactoferrin quality issues by describing an example of industrial production, the current status of global quality standardization, and quality-activity concerns for further discussion. Morinaga Milk Industry has been industrially producing bovine lactoferrin in Milei GmbH, Germany, since 1989. We delineate its production and quality as an example of safe and high-quality manufacturing. Currently, global standardization in the quality of bovine lactoferrin is progressing through Novel Food and GRAS in the EU and USA, respectively...
April 4, 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29614505/hbv-facilitated-hepatocellular-carcinoma-cells-proliferation-by-up-regulating-angiogenin-expression-through-il-6
#4
Xiaotang Zhou, Fan Yang, Ying Yang, Ying Hu, Weixia Liu, Chunhong Huang, Shuping Li, Zhi Chen
BACKGROUND/AIMS: Patients with hepatitis B virus (HBV) infection are at a high risk of developing hepatocellular carcinoma (HCC). In this study, we aim to investigate the roles of HBV on angiogenin (ANG), as well as the effects on cell proliferation in presence of ANG down-regulation. METHODS: Serum ANG was determined by ELISA. The expression of ANG mRNA and protein in HCC cell lines with or without HBV/HBx were determined. Western blot and ELISA were conducted to determine the effects of HBV/HBx on IL-6 expression...
March 26, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29607508/activation-of-autophagy-in-periodontal-ligament-mesenchymal-stem-cells-promotes-angiogenesis-in-periodontitis
#5
Wei Wei, Yulin An, Ying An, Dongdong Fei, Qintao Wang
BACKGROUND: Angiogenesis alteration in tooth support tissue plays an essential role in periodontitis. Mesenchymal stem cells (MSCs) can affect vessel formation by endothelial cells (ECs) through paracrine function. Autophagy is reported to be closely related to cell secretion. Here we investigated the angiogenesis-promoting ability of MSCs that reside in the periodontal ligament (known as periodontal ligament stem cells, PDLSCs) under inflammatory conditions in order to explore the mechanism of angiogenesis alteration in periodontitis...
April 1, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29606349/angiogenin-ribonuclease-5-is-an-egfr-ligand-and-a-serum-biomarker-for-erlotinib-sensitivity-in-pancreatic-cancer
#6
Ying-Nai Wang, Heng-Huan Lee, Chao-Kai Chou, Wen-Hao Yang, Yongkun Wei, Chun-Te Chen, Jun Yao, Jennifer L Hsu, Cihui Zhu, Haoqiang Ying, Yuanqing Ye, Wei-Jan Wang, Seung-Oe Lim, Weiya Xia, How-Wen Ko, Xiuping Liu, Chang-Gong Liu, Xifeng Wu, Huamin Wang, Donghui Li, Laura R Prakash, Matthew H Katz, Yaan Kang, Michael Kim, Jason B Fleming, David Fogelman, Milind Javle, Anirban Maitra, Mien-Chie Hung
Pancreatic ribonuclease (RNase) is a secreted enzyme critical for host defense. We discover an intrinsic RNase function, serving as a ligand for epidermal growth factor receptor (EGFR), a member of receptor tyrosine kinase (RTK), in pancreatic ductal adenocarcinoma (PDAC). The closely related bovine RNase A and human RNase 5 (angiogenin [ANG]) can trigger oncogenic transformation independently of their catalytic activities via direct association with EGFR. Notably, high plasma ANG level in PDAC patients is positively associated with response to EGFR inhibitor erlotinib treatment...
March 29, 2018: Cancer Cell
https://www.readbyqxmd.com/read/29573867/brain-derived-neurotrophic-factor-induces-angiogenin-secretion-and-nuclear-translocation-in-human-umbilical-vein-endothelial-cells
#7
Ayako Mori, Yusuke Nishioka, Mai Yamada, Yuka Nishibata, Sakiko Masuda, Utano Tomaru, Naoyuki Honma, Takanori Moriyama, Akihiro Ishizu
Brain-derived neurotrophic factor (BDNF) is a well-known humoral protein that induces growth of neurons. Recent studies have suggested that BDNF could act as an angiogenesis inducer similar to vascular endothelial growth factor (VEGF). Angiogenin is a strong mediator of angiogenesis. It has particular characteristics both as a secreted protein and a transcription factor. After being incorporated into the cytoplasm, angiogenin is immediately transferred to the nucleus and then mediates the angiogenic effects of angiogenesis inducers, including VEGF...
February 21, 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29556499/-in-silico-analysis-of-differential-gene-expression-in-three-common-rat-models-of-diastolic-dysfunction
#8
Raffaele Altara, Fouad A Zouein, Rita Dias Brandão, Saeed N Bajestani, Alessandro Cataliotti, George W Booz
Standard therapies for heart failure with preserved ejection fraction (HFpEF) have been unsuccessful, demonstrating that the contribution of the underlying diastolic dysfunction pathophysiology differs from that of systolic dysfunction in heart failure and currently is far from being understood. Complicating the investigation of HFpEF is the contribution of several comorbidities. Here, we selected three established rat models of diastolic dysfunction defined by three major risk factors associated with HFpEF and researched their commonalities and differences...
2018: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29511131/endothelial-progenitor-cell-secretome-and-oligovascular-repair-in-a-mouse-model-of-prolonged-cerebral-hypoperfusion
#9
Takakuni Maki, Anna Morancho, Pablo Martinez-San Segundo, Kazuhide Hayakawa, Hajime Takase, Anna C Liang, Marina Gabriel-Salazar, Esperanza Medina-Gutiérrez, Kazuo Washida, Joan Montaner, Josephine Lok, Eng H Lo, Ken Arai, Anna Rosell
BACKGROUND AND PURPOSE: Endothelial progenitor cells (EPCs) have been extensively investigated as a therapeutic approach for repairing the vascular system in cerebrovascular diseases. Beyond vascular regeneration per se, EPCs may also release factors that affect the entire neurovascular unit. Here, we aim to study the effects of the EPC secretome on oligovascular remodeling in a mouse model of white matter injury after prolonged cerebral hypoperfusion. METHODS: The secretome of mouse EPCs was analyzed with a proteome array...
March 6, 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29497482/exposure-to-60-oxygen-promotes-migration-and-upregulates-angiogenesis-factor-secretion-in-breast-cancer-cells
#10
Peter D Crowley, Vivian Stuttgen, Emma O'Carroll, Simon A Ash, Donal J Buggy, Helen C Gallagher
Peri-operative factors, including anaesthetic drugs and techniques, may affect cancer cell biology and clinical recurrence. In breast cancer cells, we demonstrated that sevoflurane promotes migration and angiogenesis in high fractional oxygen but not in air. Follow-up analysis of the peri-operative oxygen fraction trial found an association between high inspired oxygen during cancer surgery and reduced tumor-free survival. Here we evaluated effects of acute, high oxygen exposure on breast cancer cell viability, migration and secretion of angiogenesis factors in vitro ...
October 2017: Medical Gas Research
https://www.readbyqxmd.com/read/29486168/pleiotropic-activity-of-systemically-delivered-angiogenin-in-the-sod1-g93a-mouse-model
#11
Martin Crivello, Saidhbhe L O'Riordan, Ina Woods, Sarah Cannon, Luise Halang, Karen S Coughlan, Marion C Hogg, Sebastian A Lewandowski, Jochen H M Prehn
Loss-of-function mutations in the angiogenin (ANG) gene have been identified in familial and sporadic ALS patients. Previous work from our group identified human ANG (huANG) to protect motoneurons in vitro, and provided proof-of-concept that daily intraperitoneal (i.p.) huANG injections post-symptom onset increased lifespan and delayed disease progression in SOD1G93A mice. huANG's mechanism of action remains less well understood. Here, we implemented a preclinical in vivo design to validate our previous results, provide pharmacokinetic and protein distribution data after systemic administration, and explore potential pleiotropic activities of huANG in vivo...
February 24, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29486010/the-cellular-uptake-of-angiogenin-an-angiogenic-and-neurotrophic-factor-is-through-multiple-pathways-and-largely-dynamin-independent
#12
Ross Ferguson, Vasanta Subramanian
Angiogenin (ANG), a member of the RNase superfamily (also known as RNase 5) has neurotrophic, neuroprotective and angiogenic activities. Recently it has also been shown to be important in stem cell homeostasis. Mutations in ANG are associated with neurodegenerative diseases such as Amyotrophic Lateral Sclerosis (ALS) and Fronto-temporal dementia (FTD). ANG is a secreted protein which is taken up by cells and translocated to the nucleus. However, the import pathway/s through which ANG is taken up is/are still largely unclear...
2018: PloS One
https://www.readbyqxmd.com/read/29467953/meta-analysis-of-a-10-plex-urine-based-biomarker-assay-for-the-detection-of-bladder-cancer
#13
Norihiko Masuda, Osamu Ogawa, Meyeon Park, Alvin Y Liu, Steve Goodison, Yunfeng Dai, Landon Kozai, Hideki Furuya, Yair Lotan, Charles J Rosser, Takashi Kobayashi
A 10-plex urine-based bladder cancer (BCa) diagnostic signature has the potential to non-invasively predict the presence of BCa in at-risk patients, as reported in various case-control studies. The present meta-analysis was performed to re-evaluate and demonstrate the robustness and consistency of the diagnostic utility of the 10-plex urine-based diagnostic assay. We re-analyzed primary data collected in five previously published case-control studies on the 10-plex diagnostic assay. Studies reported the sensitivity and specificity of ten urinary protein biomarkers for the detection of BCa, including interleukin 8, matrix metalloproteinases 9 and 10, angiogenin, apolipoprotein E, syndecan 1, alpha-1 antitrypsin, plasminogen activator inhibitor-1, carbonic anhydrase 9, and vascular endothelial growth factor A...
January 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29431851/stress-induced-trna-cleavage-and-tirna-generation-in-rat-neuronal-pc12-cells
#14
Elkordy Alaa, Eikan Mishima, Kuniyasu Niizuma, Yasutoshi Akiyama, Miki Fujimura, Teiji Tominaga, Takaaki Abe
Transfer RNA (tRNA) plays a role in stress response programs involved in various pathological conditions including neurological diseases. Under cell stress conditions, intracellular tRNA is cleaved by a specific ribonuclease, angiogenin, generating tRNA-derived fragments or tRNA-derived stress-induced RNA (tiRNA). Generated tiRNA contributes to the cell stress response and has potential cell protective effects. However, tiRNA generation under stress conditions in neuronal cells has not been fully elucidated...
February 12, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29396049/increased-expression-of-angiogenic-cytokines-in-cd56-uterine-natural-killer-cells-from-women-with-recurrent-miscarriage
#15
Xiaoyan Chen, Yingyu Liu, Wing Ching Cheung, Yiwei Zhao, Jin Huang, Jacqueline Pui Wah Chung, Chi Chiu Wang, Tin Chiu Li
OBJECTIVE: To compare the expression pattern of angiogenic cytokines in CD56+ uNK cells from peri-implantation endometrium in women with a history of recurrent miscarriage and fertile controls. METHODS: 28 women were recruited, from which 18 women were diagnosed as recurrent miscarriage and 10 women were of proven fertility. Endometrial biopsy samples were obtained precisely 7 days after luteinization hormone surge in a natural cycle. The angiogenic profile of isolated CD56+ uNK cells was determined by RayBio human angiogenesis antibody array G Series 1000...
January 30, 2018: Cytokine
https://www.readbyqxmd.com/read/29369908/predominance-of-cd14-cells-in-burn-blister-fluids
#16
Szu-Han Chen, Tak-Wah Wong, Chou-Hwei Lee, Chung-Lin Chen, Li-Wha Wu, Shin-Chen Pan
BACKGROUND: Burn blister fluid contains several angiogenic factors to promote wound neovascularization. In our previous study, we found that deep partial-thickness burn (DPTB) wounds showed higher expression levels of angiogenin to enhance vascularization compared with superficial partial-thickness burn wounds. Neovascularization is a complex process that involves an interaction between circulating angiogenic cells and mediators. We hypothesized that in addition to angiogenic factors burn blisters may contain specific cell types...
February 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29369907/angiogenin-attenuates-scar-formation-in-burn-patients-by-reducing-fibroblast-proliferation-and-transforming-growth-factor-%C3%AE-1-secretion
#17
Shin-Chen Pan, Chou-Hwei Lee, Chung-Lin Chen, Wei-Yu Fang, Li-Wha Wu
BACKGROUND: Deep burn wounds have a high tendency to form hypertrophic scars. Previously, we found that angiogenin promoted neovascularization during deep burn wound healing. However, the association between angiogenin and scar formation is unclear. METHODS: We obtained human burn scar tissues from patients who underwent scar surgery and examined the role of angiogenin in scar tissues and determined its effects in scar fibroblasts and on transforming growth factor β1 (TGF-β1) secretion...
February 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29353019/induction-by-innate-defence-regulator-peptide-1018-of-pro-angiogenic-molecules-and-endothelial-cell-migration-in-a-high-glucose-environment
#18
Paulina Marin-Luevano, Valentin Trujillo, Adrian Rodriguez-Carlos, Irma González-Curiel, Jose A Enciso-Moreno, Robert E W Hancock, Bruno Rivas-Santiago
Synthetic innate defence regulator (IDR) peptides such as IDR-1018 modulate immunity to promote key protective functions including chemotaxis, wound healing, and anti-infective activity, while suppressing pro-inflammatory responses to non-pathological levels. Here we demonstrated that IDR-1018 induced, by up to 75-fold, pro-angiogenic VEGF-165 in keratinocytes but suppressed this isoform in endothelial cells. It also induced early angiogenin and prolonged anti-inflammatory TGFβ expression on endothelial cells, while suppressing early pro-inflammatory IL-1β expression levels...
March 2018: Peptides
https://www.readbyqxmd.com/read/29314771/evidence-for-novel-action-at-the-cell-binding-site-of-human-angiogenin-revealed-by-heteronuclear-nmr-spectroscopy-in-silico-and-in-vivo-studies
#19
Demetra S M Chatzileontiadou, Aikaterini C Tsika, Zoi Diamantopoulou, Jean Delbé, Josette Badet, José Courty, Vassiliki T Skamnaki, Vanessa Parmenopoulou, Dimitri Komiotis, Joseph M Hayes, Georgios A Spyroulias, Demetres D Leonidas
A member of the ribonuclease A superfamily, human angiogenin (hAng) is a potent angiogenic factor. Heteronuclear NMR spectroscopy combined with induced-fit docking revealed a dual binding mode for the most antiangiogenic compound of a series of ribofuranosyl pyrimidine nucleosides that strongly inhibit hAng's angiogenic activity in vivo. While modeling suggests the potential for simultaneous binding of the inhibitors at the active and cell-binding sites, NMR studies indicate greater affinity for the cell-binding site than for the active site...
February 6, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29247834/the-kl-vs-polymorphism-of-klotho-gene-is-protective-against-retinopathy-incidence-in-patients-with-type-1-diabetes
#20
Bartosz Słomiński, Monika Ryba-Stanisławowska, Maria Skrzypkowska, Jolanta Myśliwska, Małgorzata Myśliwiec
BACKGROUND AND AIMS: KLOTHO is an anti-ageing circulating hormone involved in insulin signaling, inflammation and vascular homeostasis through its protective effects on the endothelium and antioxidant actions. The common functional "KL-VS" variant of the KLOTHO gene is reproducibly associated with longevity in humans. Large number of studies have evaluated close relationship between KLOTHO protein and diabetes but the association between KL-VS variant and retinopathy in type 1 diabetes mellitus (T1D) is unknown...
March 2018: Biochimica et Biophysica Acta
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