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https://www.readbyqxmd.com/read/28918129/where-do-substrates-of-diacylglycerol-kinases-come-from-diacylglycerol-kinases-utilize-diacylglycerol-species-supplied-from-phosphatidylinositol-turnover-independent-pathways
#1
REVIEW
Fumio Sakane, Satoru Mizuno, Daisuke Takahashi, Hiromichi Sakai
Diacylglycerol kinase (DGK) phosphorylates diacylglycerol (DG) to produce phosphatidic acid (PA). Mammalian DGK comprises ten isozymes (α-κ) and regulates a wide variety of physiological and pathological events, such as cancer, type II diabetes, neuronal disorders and immune responses. DG and PA consist of various molecular species that have different acyl chains at the sn-1 and sn-2 positions, and consequently, mammalian cells contain at least 50 structurally distinct DG/PA species. Because DGK is one of the components of phosphatidylinositol (PI) turnover, the generally accepted dogma is that all DGK isozymes utilize 18:0/20:4-DG derived from PI turnover...
September 9, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28918048/mir-133a-promotes-trail-resistance-in-glioblastoma-via-suppressing-death-receptor-5-and-activating-nf-%C3%AE%C2%BAb-signaling
#2
Shan-Shan Wang, Lu Feng, Bao-Guang Hu, Ying-Fei Lu, Wei-Mao Wang, Wei Guo, Chun-Wai Suen, Bao-Hua Jiao, Jian-Xin Pang, Wei-Ming Fu, Jin-Fang Zhang
Recombinant tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL), as a novel cancer therapeutic, is being tested in phase II and III clinical trials; however, TRAIL resistance remains a big obstacle preventing its clinical application. Considering that TRAIL-induced apoptosis through death receptors DR4 and DR5, their activation may be an alternative pathway to suppress TRAIL resistance. In this study, a negative correlation between DR5 expression and TRAIL resistance was observed, and miR-133a was predicted to be the most promising candidate to suppress DR5 expression...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918023/repression-of-coup-tfi-improves-bone-marrow-derived-mesenchymal-stem-cell-differentiation-into-insulin-producing-cells
#3
Tao Zhang, Xiao-Hang Li, Dian-Bao Zhang, Xiao-Yu Liu, Feng Zhao, Xue-Wen Lin, Rui Wang, Hong-Xin Lang, Xi-Ning Pang
Identifying molecular mechanisms that regulate insulin expression in bone marrow-derived mesenchymal stem cells (bmMSCs) can provide clues on how to stimulate the differentiation of bmMSCs into insulin-producing cells (IPCs), which can be used as a therapeutic approach against type 1 diabetes (T1D). As repression factors may inhibit differentiation, the efficiency of this process is insufficient for cell transplantation. In this study, we used the mouse insulin 2 (Ins2) promoter sequence and performed a DNA affinity precipitation assay combined with liquid chromatography-mass spectrometry to identify the transcription factor, chicken ovalbumin upstream promoter transcriptional factor I (COUP-TFI)...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918013/mir-135b-stimulates-osteosarcoma-recurrence-and-lung-metastasis-via-notch-and-wnt-%C3%AE-catenin-signaling
#4
Hua Jin, Song Luo, Yun Wang, Chang Liu, Zhenghao Piao, Meng Xu, Wei Guan, Qing Li, Hua Zou, Qun-You Tan, Zhen-Zhou Yang, Yan Wang, Dong Wang, Cheng-Xiong Xu
Cancer stem cells (CSCs) play an important role in osteosarcoma (OS) metastasis and recurrence, and both Wnt/β-catenin and Notch signaling are essential for the development of the biological traits of CSCs. However, the mechanism that underlies the simultaneous hyperactivation of both Wnt/β-catenin and Notch signaling in OS remains unclear. Here, we report that expression of miR-135b correlates with the overall and recurrence-free survival of OS patients, and that miR-135b has an activating effect on both Wnt/β-catenin and Notch signaling...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28917711/crocodiles-and-alligators-antiamoebic-and-antitumor-compounds-of-crocodiles
#5
Ruqaiyyah Siddiqui, Shareni Jeyamogan, Salwa Mansoor Ali, Fatima Abbas, K A Sagathevan, Naveed Ahmed Khan
Crocodiles exist in unsanitary environments, feed on rotten meat, are often exposed to heavy metals such as arsenic, cadmium, cobalt, chromium, mercury, nickel, lead, selenium, tolerate high levels of radiation, and are amid the very few species to survive the catastrophic Cretaceous-Tertiary extinction event, nonetheless they can live for up to a 100 years. Moreover, as they live in unhygienic conditions, they regularly come across pathogens. Logically, we postulate that crocodiles have established mechanisms to defend themselves from noxious agents as well as protecting themselves from pathogens...
September 13, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28917652/tilapia-adropin-the-localization-and-regulation-of-growth-hormone-gene-expression-in-pituitary-cells
#6
JianPeng Peng, Ping Yang, Qianli Zhang, Quan Jiang
The peptide hormone adropin, encoded by the energy homeostasis-associated (Enho) gene, plays a role in energy homeostasis and the control of vascular function. The aim of this study was to examine the role of adropin in growth hormone (GH) gene expression at the pituitary level in tilapia. As a first step, the antiserum for the tilapia adropin was produced, and its specificity was confirmed by antiserum preabsorption and immunohistochemical staining in the tilapia pituitary. Adropin could be detected immunocytochemically in the proximal pars distalis (PPD) of the tilapia pituitary...
September 13, 2017: Peptides
https://www.readbyqxmd.com/read/28917501/personalized-translational-epilepsy-research-novel-approaches-and-future-perspectives-part-i-clinical-and-network-analysis-approaches
#7
REVIEW
Felix Rosenow, Natascha van Alphen, Albert Becker, Andreas Chiocchetti, Ralf Deichmann, Thomas Deller, Thomas Freiman, Christine M Freitag, Johannes Gehrig, Anke M Hermsen, Peter Jedlicka, Christian Kell, Karl Martin Klein, Susanne Knake, Dimitri M Kullmann, Stefan Liebner, Braxton A Norwood, Diana Omigie, Karlheinz Plate, Andreas Reif, Philipp S Reif, Yvonne Reiss, Jochen Roeper, Michael W Ronellenfitsch, Stephanie Schorge, Gerhard Schratt, Stephan W Schwarzacher, Joachim P Steinbach, Adam Strzelczyk, Jochen Triesch, Marlies Wagner, Matthew C Walker, Frederic von Wegner, Sebastian Bauer
Despite the availability of more than 15 new "antiepileptic drugs", the proportion of patients with pharmacoresistant epilepsy has remained constant at about 20-30%. Furthermore, no disease-modifying treatments shown to prevent the development of epilepsy following an initial precipitating brain injury or to reverse established epilepsy have been identified to date. This is likely in part due to the polyetiologic nature of epilepsy, which in turn requires personalized medicine approaches. Recent advances in imaging, pathology, genetics and epigenetics have led to new pathophysiological concepts and the identification of monogenic causes of epilepsy...
September 13, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28917498/personalized-translational-epilepsy-research-novel-approaches-and-future-perspectives-part-ii-experimental-and-translational-approaches
#8
REVIEW
Sebastian Bauer, Natascha van Alphen, Albert Becker, Andreas Chiocchetti, Ralf Deichmann, Thomas Deller, Thomas Freiman, Christine M Freitag, Johannes Gehrig, Anke M Hermsen, Peter Jedlicka, Christian Kell, Karl Martin Klein, Susanne Knake, Dimitri M Kullmann, Stefan Liebner, Braxton A Norwood, Diana Omigie, Karlheinz Plate, Andreas Reif, Philipp S Reif, Yvonne Reiss, Jochen Roeper, Michael W Ronellenfitsch, Stephanie Schorge, Gerhard Schratt, Stephan W Schwarzacher, Joachim P Steinbach, Adam Strzelczyk, Jochen Triesch, Marlies Wagner, Matthew C Walker, Frederic von Wegner, Felix Rosenow
Despite the availability of more than 15 new "antiepileptic drugs", the proportion of patients with pharmacoresistant epilepsy has remained constant at about 20-30%. Furthermore, no disease-modifying treatments shown to prevent the development of epilepsy following an initial precipitating brain injury or to reverse established epilepsy have been identified to date. This is likely in part due to the polyetiologic nature of epilepsy, which in turn requires personalized medicine approaches. Recent advances in imaging, pathology, genetics, and epigenetics have led to new pathophysiological concepts and the identification of monogenic causes of epilepsy...
September 13, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28916831/the-melanocortin-signaling-camp-axis-accelerates-repair-and-reduces-mutagenesis-of-platinum-induced-dna-damage
#9
Stuart G Jarrett, Katharine M Carter, Brent J Shelton, John A D'Orazio
Using primary melanocytes and HEK293 cells, we found that cAMP signaling accelerates repair of bi- and mono-functional platinum-induced DNA damage. Elevating cAMP signaling either by the agonistic MC1R ligand melanocyte stimulating hormone (MSH) or by pharmacologic cAMP induction by forskolin enhanced clearance of intrastrand cisplatin-adducts in melanocytes or MC1R-transfected HEK293 cells. MC1R antagonists human beta-defensin 3 and agouti signaling protein blocked MSH- but not forskolin-mediated enhancement of platinum-induced DNA damage...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916570/dietary-poly-phenols-brown-adipose-tissue-activation-and-energy-expenditure-a-narrative-review
#10
REVIEW
Laura Mele, Guillaume Bidault, Pedro Mena, Alan Crozier, Furio Brighenti, Antonio Vidal-Puig, Daniele Del Rio
The incidence of overweight and obesity has reached epidemic proportions, making the control of body weight and its complications a primary health problem. Diet has long played a first-line role in preventing and managing obesity. However, beyond the obvious strategy of restricting caloric intake, growing evidence supports the specific antiobesity effects of some food-derived components, particularly (poly)phenolic compounds. The relatively new rediscovery of active brown adipose tissue in adult humans has generated interest in this tissue as a novel and viable target for stimulating energy expenditure and controlling body weight by promoting energy dissipation...
September 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28916112/a-novel-mimovirus-encoding-chga10-19-peptide-with-pd-l1-induces-t-cell-tolerance-and-ameliorates-the-severity-of-diabetes
#11
Hong Sun, Xiaoguang Han, Xiuhui Yan, Jingli Xu, Qiujing Huang, Fanqing Meng, Hongjin Zhang, Shufa Li
Related studies demonstrate that type 1 diabetes (T1D) is caused by β-cell antigen specific autoreactive CD8+ T cells. ChgA has recently been identified as the autoantigen in NOD mice and T1D patients. Therefore, attenuating the activation of ChgA specific CD8+ T cells might be a promising target for T1D therapy. The negative co-stimulatory PD-L1 inhibits T cell mediated alloimmunity and induces tolerance. In this experiment, a novel mimovirus encoding ChgA10-19 peptide with PD-L1 was constructed. The NOD...
September 7, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28915703/treatments-of-traumatic-neuropathic-pain-a-systematic-review
#12
REVIEW
Chenglun Yao, Xijie Zhou, Bin Zhao, Chao Sun, Keshav Poonit, Hede Yan
Traumatic neuropathic pain caused by traumatic neuroma has long been bothering both doctors and patients, the mechanisms of traumatic neuropathic pain are widely discussed by researchers and the treatment is challenging. Clinical treatment of painful neuroma is unclear. Numerous treatment modalities have been introduced by experts in this field. However, there is still no single standard recognized treatment. Different forms of treatments have been tested in animals and humans, but pharmacotherapies (antidepressants, antiepileptics) remain the basis of traumatic neuropathic pain management...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915573/lipid-catabolism-inhibition-sensitizes-prostate-cancer-cells-to-antiandrogen-blockade
#13
Thomas W Flaig, Maren Salzmann-Sullivan, Lih-Jen Su, Zhiyong Zhang, Molishree Joshi, Miguel A Gijón, Jihye Kim, John J Arcaroli, Adrie Van Bokhoven, M Scott Lucia, Francisco G La Rosa, Isabel R Schlaepfer
Prostate cancer (PCa) is the most common malignancy among Western men and the second leading-cause of cancer related deaths. For men who develop metastatic castration resistant PCa (mCRPC), survival is limited, making the identification of novel therapies for mCRPC critical. We have found that deficient lipid oxidation via carnitine palmitoyltransferase (CPT1) results in decreased growth and invasion, underscoring the role of lipid oxidation to fuel PCa growth. Using immunohistochemistry we have found that the CPT1A isoform is abundant in PCa compared to benign tissue (n=39, p<0...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915283/clinical-evaluation-of-a-multi-modal-facial-serum-that-addresses-hyaluronic-acid-levels-in-skin
#14
Susana Raab, Margarita Yatskayer, Stephen Lynch, Megan Manco, Christian Oresajo
BACKGROUND: Hyaluronic acid (HA), the major glycosaminoglycan present in the human skin, is a key contributor to water retention and mechanical support in skin. The level, size, and functionality of cutaneous HA are known to diminish with age. Topical treatments designed to increase the HA content of skin have been met with limited success. The purpose of this study was to evaluate the tolerance and efficacy of a multi-modal facial serum containing HA, Proxylane (C-Xyloside), purple rice extract, and dipotassium glycyrrhizate in addressing HA levels in skin...
September 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28915118/delayed-diagnosis-of-proopiomelanocortin-pomc-deficiency-with-type-1-diabetes-in-a-9-year-old-girl-and-her-infant-sibling
#15
Elif Ozsu, Allison Bahm
BACKGROUND: Proopiomelanocortin (POMC) protein, encoded by the POMC gene, is the precursor of adrenocorticotropic hormone (ACTH) that is released from the anterior pituitary gland. Homozygous mutations in the POMC gene is associated with hyperphagia, severe and early-onset obesity, adrenal insufficiency, hypopigmentation of the skin and red hair. CASE PRESENTATION: A 9-year-old girl from a consanguineous family of Iraqi origin was diagnosed with type 1 diabetes...
September 15, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28915062/a-recombinant-fragment-of-human-surfactant-protein-d-suppresses-basophil-activation-th2-and-b-cell-responses-in-grass-pollen-induced-allergic-inflammation
#16
Asif S Qaseem, Iesha Singh, Ansar A Pathan, Janice A Layhadi, Rebecca Parkin, Fedina Alexandra, Stephen R Durham, Uday Kishore, Mohamed H Shamji
RATIONALE: rfhSP-D has been shown to suppress house dust mite and Aspergillus fumigatus-induced allergic inflammation in murine models. OBJECTIVES: We sought to elucidate the effect of rfhSP-D on FcεRI and CD23-mediated grass pollen induced allergic inflammatory responses. METHODS: rfhSP-D, containing homotrimeric neck and lectin domains, was expressed in Escherichia coli BL21 (λDE3) pLysS. PBMCs and sera were obtained from grass pollen allergic individuals (n=27)...
September 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28914804/the-role-of-erk-signaling-in-experimental-autoimmune-encephalomyelitis
#17
Katharina Birkner, Beatrice Wasser, Julia Loos, Alexander Plotnikov, Rony Seger, Frauke Zipp, Esther Witsch, Stefan Bittner
Extracellular signal-regulated kinase (ERK) signaling plays a crucial role in regulating immune cell function and has been implicated in autoimmune disorders. To date, all commercially available inhibitors of ERK target upstream components, such as mitogen-activated protein (MAP) kinase/ERK kinase (MEKs), but not ERK itself. Here, we directly inhibit nuclear ERK translocation by a novel pharmacological approach (Glu-Pro-Glu (EPE) peptide), leading to an increase in cytosolic ERK phosphorylation during T helper (Th)17 cell differentiation...
September 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28913767/management-of-atypical-renal-cell-carcinomas
#18
REVIEW
Bobby C Liaw, Reza Mehrazin, Charles Baker, John P Sfakianos, Che-Kai Tsao
Non-clear cell renal cell carcinoma (RCC) encompasses a diverse group of diseases, with research yielding different histologic findings and genetic profiles with each distinct subgroup. Simply mirroring the management techniques of clear cell RCC and borrowing from its growing armamentarium of therapeutic agents, while somewhat productive at first, but will ultimately be limiting. Further investigation into the molecular pathogenesis of disease, similarities and differences between specific subtypes, and mechanisms of resistance to therapeutics will help identify new targets, stimulate development of novel agents, and improve clinical trial offerings for non-clear cell RCC (nccRCC)...
September 14, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28913597/trauma-leagues-a-novel-option-to-attract-medical-students-to-a-surgical-career
#19
Romeo Lages Simões, Alcir Escocia Dorigatti, Henrique José Virgili Silveira, Thiago Rodrigues Araujo Calderan, Sandro Rizoli, Gustavo Pereira Fraga
BACKGROUND: In Brazil, most medical schools do not offer trauma surgery in their undergraduate curriculum. The Trauma Leagues arose in Brazil as an important promoter of trauma education and stimulated activities related to surgical skills and practices. In recent decades, studies have demonstrated that the number of surgical residency applicants has decreased worldwide. Strategies to motivate medical students to choose surgery are needed. OBJECTIVE: To evaluate the impact of participation in the Unicamp Trauma League (UTL) during a 20-year period in the choice for a surgical career...
September 14, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28912937/relieving-pain-in-oral-lesions-of-pemphigus-vulgaris-using-the-non-ablative-non-thermal-co2-laser-therapy-ntclt-preliminary-results-of-a-novel-approach
#20
Nasrin Zand, Parvin Mansouri, Mohsen Fateh, Leila Ataie-Fashtami, Samad Rezaee Khiabanloo, Farid Safar, Reza Chalangari, Katalin Martits, Afshan Shirkavand
Introduction: Pemphigus vulgaris (PV) is a chronic, serious autoimmune mucocutaneous bullous disease. Oral lesions in PV may be extremely painful. This pain may adversely affect the patients' oral intake and quality of life. This before-after clinical trial was designed to assess the pain relieving effects of single session of non-ablative, non-thermal CO2 laser therapy (NTCLT) in oral lesions of PV. Methods: Fifty painful oral lesions of fourteen patients with PV were illuminated by CO2 laser (power: 1 W, scanning the lesions with rapid circular motion of the handpiece) passing through a thick layer of transparent gel with high water content...
2017: Journal of Lasers in Medical Sciences
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