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https://www.readbyqxmd.com/read/28548957/involvement-of-p38-%C3%AE-trcp-tristetraprolin-tnf%C3%AE-axis-in-radiation-pneumonitis
#1
Pranathi Meda Krishnamurthy, Shirish Shukla, Paramita Ray, Rohit Mehra, Mukesh K Nyati, Theodore S Lawrence, Dipankar Ray
Early release of tumor necrosis factor-alpha (TNF-α) during radiotherapy of thoracic cancers plays an important role in radiation pneumonitis, whose inhibition may provide lung radioprotection. We previously reported radiation inactivates Tristetraprolin (TTP), a negative regulator of TNF-α synthesis, which correlated with increased TNF-α release. However, the molecular events involved in radiation-induced TTP inactivation remain unclear. To determine if eliminating Ttp in mice resulted in a phenotypic response to radiation, Ttp-null mice lungs were exposed to a single dose of 15 Gy, and TNF-α release and lung inflammation were analyzed at different time points post-irradiation...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28547839/thrombotic-thrombocytopenic-purpura-related-to-adamts13-deficiency-and-successful-treatment-in-a-chimpanzee-pan%C3%A2-troglodytes-verus
#2
Hester van Bolhuis, Marno Wolters, Mark de Boer, Rob Fijnheer, Martine van Zijll Langhout, Henk Niphuis, Carel Eckmann
A 27-year-old male chimpanzee (Pan troglodytes verus) developed signs of thrombotic thrombocytopenic purpura (TTP). ADAMTS13 deficiency appeared to be the cause of disease. After treatment with high-dose prednisone, haematological values and clinical signs recovered. This is the first description of spontaneous TTP associated with ADAMTS13 deficiency in a non-human primate.
May 26, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/28544923/unfavorable-prognostic-role-of-tumor-infiltrating-lymphocytes-in-hormone-receptor-positive-her2-negative-metastatic-breast-cancer-treated-with-metronomic-chemotherapy
#3
Emilia Montagna, Andrea Vingiani, Patrick Maisonneuve, Giuseppe Cancello, Federica Contaldo, Giancarlo Pruneri, Marco Colleoni
BACKGROUND: High levels of tumor-infiltrating lymphocytes (TILs) in primary triple negative and HER2-positive breast cancer (BC) have been associated with an improved patients' outcome. The role of TILs in Luminal (hormone receptor positive and HER2 negative) tumors remains to be elucidated. Moreover, the association between TILs and prognosis in the metastatic setting is still unknown. PATIENTS AND METHODS: We evaluated the relationship between TILs and time to progression (TTP) in metastatic BC patients enrolled in a prospective phase II trial of metronomic chemotherapy, that used cyclophosphamide 50 mg daily, capecitabine 500 mg thrice daily and vinorelbine 40 mg orally three times a week (VEX combination)...
May 22, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28539664/mirna-29c-regulates-the-expression-of-inflammatory-cytokines-in-diabetic-nephropathy-by-targeting-tristetraprolin
#4
Jia Guo, Jing Li, Jing Zhao, Shuguang Yang, Luyao Wang, Genyang Cheng, Dong Liu, Jing Xiao, Zhangsuo Liu, Zhanzheng Zhao
Diabetic nephropathy is one of the most prevalent chronic complications of Diabetes mellitus, but its pathogenesis remains elusive. This study was designed to determine the role of tristetraprolin (TTP), inflammatory cytokines and microRNAs (miRNAs) in DN. The blood and urine samples were obtained from 32 patients with DN, 33 patients with type 2 DM, and 35 normal healthy subjects as controls. Renal tissue samples were also obtained from 10 DN patients and 10 normal controls. The miRNA microarray analyses were performed in pooled plasma and urine sediment samples of eight DN patients and eight age- and sex-matched health control subjects and three paired renal tissues from patients with DN and normal controls...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28534374/rituximab-in-the-therapy-of-stage-iii-and-iv-follicular-lymphoma-results-of-the-reflect-1-study-of-the-serbian-lymphoma-group
#5
Stevan Popovic, Darjana Jovanovic, Biljana Mihaljevic, Nebojsa Andjelkovic, Goran Marjanovic, Dragomir Marisavljevic, Nada Vlaisavljevic, Lazar Popovic, Svetlana Salma, Danijela Agic, Rajko Milosevic, Mihajlo Smiljanic, Snezana Sretenović, Predrag Djurdjević, Olivera Markovic, Jelena Hajder, Nenad Govedarovic
PURPOSE: Follicular lymphoma (FL) is an indolent lymphoma that responds well to rituximab+chemotherapy. We evaluated the prognosis and efficacy of immunochemotherapy in patients with previously untreated, advanced FL. METHODS: REFLECT 1 is a multicentre, prospective study of 99 patients with previously untreated FL stage III-IV. All patients were treated with rituximab+chemotherapy x 6 cycles, plus 2 cycles of rituximab monotherapy. Clinical assessment was performed at baseline, after completion of the first 6 cycles of therapy and every 3 months from the end of immunochemotherapy to the end of the study period...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28531210/judging-time-to-passage-of-looming-sounds-evidence-for-the-use-of-distance-based-information
#6
Rosa Mariana Silva, João Lamas, Carlos César Silva, Yann Coello, Sandra Mouta, Jorge Almeida Santos
Perceptual judgments are an essential mechanism for our everyday interaction with other moving agents or events. For instance, estimation of the time remaining before an object contacts or passes us is essential to act upon or to avoid that object. Previous studies have demonstrated that participants use different cues to estimate the time to contact or the time to passage of approaching visual stimuli. Despite the considerable number of studies on the judgment of approaching auditory stimuli, not much is known about the cues that guide listeners' performance in an auditory Time-to-Passage (TTP) task...
2017: PloS One
https://www.readbyqxmd.com/read/28529557/a-single-center-experience-of-sorafenib-monotherapy-in-patients-with-advanced-intrahepatic-cholangiocarcinoma
#7
Ting-Ting Pan, Wei Wang, Wei-Dong Jia, Ge-Liang Xu
Patients with advanced intrahepatic cholangiocarcinoma (ICC) have a poor prognosis and the therapeutic options available for treating ICC are limited. Sorafenib, a multikinase inhibitor of vascular endothelial growth factor receptor 2 and 3, platelet derived growth factor receptor-β, B-Raf proto-oncogene, serine/threonine kinase and C-Raf proto-oncogene, serine/threonine kinase, is a novel reference standard for the treatment of advanced hepatocellular carcinoma. Sorafenib has previously been demonstrated to exhibit significant antitumor activity in various cholangiocarcinoma cell lines and in xenograft ICC models...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28524708/significance-of-baseline-fdg-pet-ct-scan-as-a-method-of-staging-regional-lymph-nodes-in-patients-with-operable-distal-oesophageal-or-gastroesophageal-junction-adenocarcinoma
#8
George Papaxoinis, Jamie M J Weaver, Leila Khoja, Ana Patrao, Sofia Stamatopoulou, Alia Alchawaf, Vikki Owen-Holt, Theodora Germetaki, Zoe Kordatou, Wasat Mansoor
BACKGROUND: The new American Joint Committee on Cancer eighth edition (AJCC8) staging is the first to describe separate clinical and pathology staging systems, but still has low performance to predict prognosis in patients with oesophageal/gastroesophageal junction (O/GOJ) adenocarcinoma, who are candidates for surgery. Recent studies have demonstrated that O/GOJ cancer patients with 18F-fluorodeoxyglucose (FDG) avid regional lymph nodes (RLNs) may have poor prognosis. The aim of our study was to examine whether the baseline assessment of the FDG uptake of RLN improves the prognostic accuracy of the new AJCC8 staging...
May 19, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28522855/phosphoserine-aminotransferase-1-is-associated-to-poor-outcome-on-tamoxifen-therapy-in-recurrent-breast-cancer
#9
Tommaso De Marchi, Mieke A Timmermans, Anieta M Sieuwerts, Marcel Smid, Maxime P Look, Nicolai Grebenchtchikov, Fred C G J Sweep, Jan G Smits, Viktor Magdolen, Carolien H M van Deurzen, John A Foekens, Arzu Umar, John W Martens
In a previous study, we detected a significant association between phosphoserine aminotransferase 1 (PSAT1) hyper-methylation and mRNA levels to outcome to tamoxifen treatment in recurrent disease. We here aimed to study the association of PSAT1 protein levels to outcome upon tamoxifen treatment and to obtain more insight in its role in tamoxifen resistance. A cohort of ER positive, hormonal therapy naïve primary breast carcinomas was immunohistochemically (IHC) stained for PSAT1. Staining was analyzed for association with patient's time to progression (TTP) and overall response on first-line tamoxifen for recurrent disease...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522832/the-fragment-hmga2-sh-3p20-from-hmga2-mrna-3-utr-promotes-the-growth-of-hepatoma-cells-by-upregulating-hmga2
#10
Yuan Wang, Fuquan Chen, Zhe Yang, Man Zhao, Shuqin Zhang, Yuen Gao, Jinyan Feng, Guang Yang, Weiying Zhang, Lihong Ye, Xiaodong Zhang
High mobility group A2 (HMGA2) plays a crucial role in the development of cancer. However, the mechanism by which HMGA2 promotes the growth of hepatocellular carcinoma (HCC) remains unclear. Here, we explore the hypothesis that HMGA2 may enhance the growth of hepatoma cells through a fragment based on the secondary structure of HMGA2 mRNA 3'-untranslated region (3'UTR). Bioinformatics analysis showed that HMGA2 mRNA displayed a hairpin structure within its 3'UTR, termed HMGA2-sh. Mechanistically, RNA immunoprecipitation assays showed that the microprocessor Drosha or DGCR8 interacted with HMGA2 mRNA in hepatoma cells...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521259/von-willebrand-factor-and-its-cleaving-protease-adamts13-balance-in-coronary-artery-vessels-lessons-learned-from-thrombotic-thrombocytopenic-purpura-a-narrative-review
#11
REVIEW
Nuccia Morici, Silvia Cantoni, Francesco Panzeri, Alice Sacco, Chiara Rusconi, Miriam Stucchi, Fabrizio Oliva, Marco Cattaneo
BACKGROUND: Deficiency of the von Willebrand factor-cleaving protease ADAMTS13 is central to the pathophysiology of thrombotic thrombocytopenic purpura (TTP), a microangiopathic syndrome that presents as an acute medical emergency. In this review we will explore the evidence of a two-way relationship between TTP and ACS. Moreover, we will review the evidence emerged from epidemiological studies of an inverse relationship between the plasma levels of ADAMTS13 and the risk of ACS. METHODS AND RESULTS: Pubmed, MEDLINE and EMBASE, CINHAL, COCHRANE and Google Scholar databases were searched from inception to January 2017...
May 12, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28516114/measurement-of-mrna-decay-in-mouse-embryonic-fibroblasts
#12
Lian-Qun Qiu, Wi S Lai, Deborah J Stumpo, Perry J Blackshear
mRNA stability control is a critical step in the post-transcriptional regulation of gene expression. Actinomycin D, an antibiotic initially used as an anti-cancer drug, has turned out to be a convenient tool for studying the turnover rates of transcripts in cells, due to its inhibition of mRNA synthesis. Here, we describe a protocol for the measurement of mRNA decay after adding actinomycin D into the medium of stable fibroblast cell lines derived from wild-type and tristetraprolin (TTP)-deficient mouse embryonic fibroblast (MEF) cultures, as well as a protocol for determining the relative transcript abundance using semi-quantitative real time RT-PCR...
July 5, 2016: Bio-protocol
https://www.readbyqxmd.com/read/28515608/thrombotic-thrombocytopenic-purpura-in-a-case-of-dengue-fever-a-rare-presentation
#13
Abhijit S Gavali, Jayant Shelgaonkar, Sandip Bartakke
Here, we present an unusual occurrence of thrombotic thrombocytopenic purpura (TTP) in a case of dengue fever. Both the conditions are fatal and can result in significant mortality and morbidity if left untreated. In this case, as soon as, we diagnosed the patient as having TTP, we treated her with plasma exchange therapy, steroids, and monoclonal antibodies such as rituximab. The patient responded very well to the treatment and completely recovered from neurological symptoms and laboratory parameters also normalized...
April 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28506255/retrospective-study-of-nonmucinous-appendiceal-adenocarcinomas-role-of-systemic-chemotherapy-and-cytoreductive-surgery
#14
Marc Uemura, Wei Qiao, Keith Fournier, Jeffrey Morris, Paul Mansfield, Cathy Eng, Richard E Royal, Robert A Wolff, Kanwal Raghav, Gary N Mann, Michael J Overman
BACKGROUND: Mucinous appendiceal adenocarcinomas (AAs) are the most common histological subset of AAs. Nonmucinous AAs have been infrequently studied. We performed a single-center retrospective study to investigate this histological subtype. METHODS: We reviewed 172 patient records with nonmucinous AAs treated at MD Anderson Cancer Center from Jan, 1990 to Jun, 2015 and recorded patient demographics, tumor characteristics, treatment, and outcomes. Response rate (RR) was assessed semi-quantitatively (response/no response) according to the treating physician's findings...
May 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28504646/the-rna-binding-protein-tristetraprolin-schedules-apoptosis-of-pathogen-engaged-neutrophils-during-bacterial-infection
#15
Florian Ebner, Vitaly Sedlyarov, Saren Tasciyan, Masa Ivin, Franz Kratochvill, Nina Gratz, Lukas Kenner, Andreas Villunger, Michael Sixt, Pavel Kovarik
Protective responses against pathogens require a rapid mobilization of resting neutrophils and the timely removal of activated ones. Neutrophils are exceptionally short-lived leukocytes, yet it remains unclear whether the lifespan of pathogen-engaged neutrophils is regulated differently from that in the circulating steady-state pool. Here, we have found that under homeostatic conditions, the mRNA-destabilizing protein tristetraprolin (TTP) regulates apoptosis and the numbers of activated infiltrating murine neutrophils but not neutrophil cellularity...
May 15, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28500622/implementation-of-a-rapid-assay-of-adamts13-activity-was-associated-with-improved-30-day-survival-rate-in-patients-with-acquired-primary-thrombotic-thrombocytopenic-purpura-who-received-platelet-transfusions
#16
Yumi Yoshii, Yoshihiro Fujimura, Charles L Bennett, Ayami Isonishi, Norio Kurumatani, Masanori Matsumoto
BACKGROUND: Platelet (PLT) transfusions are probably harmful in patients with acquired idiopathic thrombotic thrombocytopenic purpura (aTTP). Introduction of a rapid assay for ADAMTS13 activity should reduce the time to definite diagnosis of aTTP, reduce the amount of inappropriately transfused PLT concentrates, and improve mortality and morbidity. STUDY DESIGN AND METHODS: We selected 265 aTTP patients with severe ADAMTS13 deficiency. Of these, 91 patients were diagnosed by March 2005 (Period 1), when ADAMTS13 activity was measured by von Willebrand factor multimer assay, which took 4 to 7 days until the result was reported...
May 12, 2017: Transfusion
https://www.readbyqxmd.com/read/28500616/significance-of-blood-neutrophil-to-lymphocyte-ratio-for-prognostic-stratification-of-patients-with-gastroesophageal-junction-adenocarcinoma-in-the-era-of-the-8th-edition-of-the-american-joint-committee-on-cancer-ajcc8-staging
#17
Alicia-Marie Conway, Zena Salih, George Papaxoinis, Kimberly Fletcher, Jamie Weaver, Ana Patrao, Robert Noble, Sofia Stamatopoulou, Vikki Owen-Holt, Wasat Mansoor
The prognosis of patients with gastroesophageal junction (GOJ) adenocarcinoma depends mainly on the clinical staging, as described by the new AJCC8 (American Joint Committee on Cancer 8th edition). Evidence suggests that peripheral blood neutrophil-to-lymphocyte ratio (NLR) may be of prognostic significance in patients with upper gastrointestinal cancers. We examined the prognostic significance of NLR in the era of the new AJCC8 staging system. In this single-centre cohort study, retrospective data on patients with operable GOJ adenocarcinoma treated with perioperative chemotherapy were analysed...
June 2017: Medical Oncology
https://www.readbyqxmd.com/read/28499011/fatal-case-of-chikungunya-and-concomitant-thrombotic-thrombocytopenic-purpura-in-french-guiana-during-air-flight-medical-evacuation
#18
Loïc Epelboin, Bastien Bidaud, Emilie Mosnier, Paul Le Turnier, Guillaume Vesin, Gaëlle Walter, Philippe Abboud, Stéphanie Houcke, Maïa Forgues, Gérald Egmann, Alain Stepanian, Félix Djossou
Thrombotic thrombocytopenic purpura (TTP) is a thrombotic microangiopathy associated to severe ADAMTS13 deficiency. It has been linked to various viral infections. Among arboviruses, only Crimean-Congo haemorrhagic fever and dengue fever have been linked to this severe disease. We report the first documented case of TTP concomitant to Chikungunya virus infection.
September 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28484824/prognostic-value-of-incidental-hypervascular-micronodules-detected-on-cone-beam-computed-tomography-angiography-of-patients-with-liver-metastasis
#19
Bruno C Odisio, Veronica L Cox, Silvana C Faria, Suguru Yamashita, Xiao Shi, Joe Ensor, Aaron K Jones, Armeen Mahvash, Sanjay Gupta, Alda L Tam, Jean-Nicolas Vauthey, Ravi Murthy
PURPOSE: To determine the clinical relevance of incidentally-found hypervascular micronodules (IHM) on cone-beam computed tomography angiography (CBCTA) in patients with liver metastasis undergoing transarterial (chemo)embolization (TACE/TAE). MATERIAL AND METHODS: This was a HIPAA-compliant institutional review board-approved single-institution retrospective review of 95 non-cirrhotic patients (52 men; mean age, 60 years) who underwent CBCTA prior to (chemo)embolic delivery...
May 8, 2017: European Radiology
https://www.readbyqxmd.com/read/28481312/carotid-artery-stenting-and-blood-brain-barrier-permeability-in-subjects-with-chronic-carotid-artery-stenosis
#20
Arkadiusz Szarmach, Grzegorz Halena, Mariusz Kaszubowski, Maciej Piskunowicz, Michal Studniarek, Piotr Lass, Edyta Szurowska, Pawel J Winklewski
Failure of the blood-brain barrier (BBB) is a critical event in the development and progression of diseases such as acute ischemic stroke, chronic ischemia or small vessels disease that affect the central nervous system. It is not known whether BBB breakdown in subjects with chronic carotid artery stenosis can be restrained with postoperative recovery of cerebral perfusion. The aim of the study was to assess the short-term effect of internal carotid artery stenting on basic perfusion parameters and permeability surface area-product (PS) in such a population...
May 8, 2017: International Journal of Molecular Sciences
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