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https://www.readbyqxmd.com/read/28403039/pneumotoxicity-associated-with-immune-checkpoint-inhibitor-therapies
#1
Vickie R Shannon
PURPOSE OF REVIEW: Immune checkpoint inhibitor therapies represent a new paradigm in cancer therapeutics, in which the targets are not the cancer cells, but the body's own immune system. Harnessing the immune system to better fight cancer has generated a unique spectrum of immune-related adverse events (IrAEs) that effect virtually every major organ system. Although lung involvement is less common than other forms of IrAEs, its consequences are potentially lethal. This review focuses on the evolving spectrum of lung toxicities associated with the two major classes of immune checkpoint inhibitor therapies, cytotoxic T-cell ligand-4, and programed cell death-1 (PDL-1)...
April 11, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28396514/effects-ofrhbmp-2gene-transfectionto-periodontal-ligament-cells-on-osteogenesis
#2
Cong-Xiang Jian, Quan-Shui Fan, Yong-He Hu, Yong He, Ming-Zhe Li, Wei-Yin Zheng, Yu Ren, Chen-Jun Li
Objective: This study aims to investigate the effect of recombinant human bone morphogenetic protein-2 (rhBMP-2) on the osteogenesis of periodontal ligament (PDL) cells. Method: The expression vector of rhBMP-2 (pcDNA3.1-rhBMP-2) was established. PDL cells were obtained through the enzymatic digestion and tissue explant methods and verified by immunohistochemistry. Cells were classified into an experimental (cells were transfected with pcDNA3.1/rhBMP-2-EGFP), blank (cells with no transfection) and control group (cells were transfected with empty plasmid)...
April 10, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28396036/coordination-of-metabolic-pathways-enhanced-carbon-conservation-in-1-3-propanediol-production-by-coupling-with-optically-pure-lactate-biosynthesis
#3
Bo Xin, Fei Tao, Yu Wang, Hongyu Liu, Cuiqing Ma, Ping Xu
Metabolic engineering has emerged as a powerful tool for bioproduction of both fine and bulk chemicals. The natural coordination among different metabolic pathways contributes to the complexity of metabolic modification, which hampers the development of biorefineries. Herein, the coordination between the oxidative and reductive branches of glycerol metabolism was rearranged in Klebsiella oxytoca to improve the 1,3-propanediol production. After deliberating on the product value, carbon conservation, redox balance, biological compatibility and downstream processing, the lactate-producing pathway was chosen for coupling with the 1,3-propanediol-producing pathway...
April 7, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28391420/a-neuro-oncologist-s-perspective-on-management-of-brain-metastases-in-patients-with-egfr-mutant-non-small-cell-lung-cancer
#4
REVIEW
Tresa McGranahan, Seema Nagpal
Management of non-small cell lung cancer (NSCLC) with brain metastasis (BrM) has been revolutionized by identification of molecular subsets that have targetable oncogenes. Historically, survival for NSCLC with symptomatic BrM was weeks to months. Now, many patients are surviving years with limited data to guide treatment decisions. Tumors with activating mutations in epidermal growth factor receptor (EGFRact+) have a higher incidence of BrM, but a longer overall survival. The high response rate of both systemic and BrM EGFRact+ NSCLC to tyrosine kinase inhibitors (TKIs) has led to the rapid incorporation of new therapies but is outpacing evidence-based decisions for BrM in NSCLC...
April 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28358791/methadone-prescribing-and-overdose-and-the-association-with-medicaid-preferred-drug-list-policies-united-states-2007-2014
#5
Mark Faul, Michele Bohm, Caleb Alexander
Drug overdose is a leading cause of injury death in the United States; 47,055 fatal drug overdoses were reported in 2014, a 6.5% increase from the previous year (1), driven by opioid use disorder (2,3). Methadone is an opioid prescribed for pain management and is also provided through opioid treatment programs to treat opioid use disorders. Because methadone might remain in a person's system long after the pain-relieving benefits have been exhausted, it can cause slow or shallow breathing and dangerous changes in heartbeat that might not be perceived by the patient (4,5)...
March 31, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28357911/advances-in-urothelial-bladder-cancer-immunotherapy-dawn-of-a-new-age-of-treatment
#6
Fouad Aoun, Elie El Rassy, Tarek Assi, Simone Albisinni, Joseph Katan
Urothelial bladder cancer displays a high number of somatic mutations that render these tumors more responsive to immunotherapy. Several immunotherapeutic agents were examined in patients with advanced stage urothelial bladder cancer and recently atezolizumab - an (PDL-1) immune checkpoint inhibitor antibody - was approved for the treatment of patients with metastatic disease progressing after platinum combination therapy. Despite the great success, there are still some unanswered questions and ongoing trials that are in progress to define the role of combination therapy and sequencing strategies...
March 2017: Immunotherapy
https://www.readbyqxmd.com/read/28345023/enhancement-of-psma-directed-car-adoptive-immunotherapy-by-pd-1-pd-l1-blockade
#7
Inna Serganova, Ekaterina Moroz, Ivan Cohen, Maxim Moroz, Mayuresh Mane, Juan Zurita, Larissa Shenker, Vladimir Ponomarev, Ronald Blasberg
Chimeric antigen receptor (CAR) T cell therapy in hematologic malignancies has shown remarkable responses, but the same level of success has not been observed in solid tumors. A new prostate cancer model (Myc-CaP:PSMA(+)) and a second-generation anti-hPSMA human CAR T cells expressing a Click Beetle Red luciferase reporter) were used to study hPSMA targeting and assess CAR T cell trafficking and persistence by bioluminescence imaging (BLI). We investigated the antitumor efficacy of human CAR T cells targeting human prostate-specific membrane antigen (hPSMA), in the presence and absence of the target antigen; first alone and then combined with a monoclonal antibody targeting the human programmed death receptor 1 (anti-hPD1 mAb)...
March 17, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28318336/are-tumor-infiltrating-lymphocytes-protagonists-or-background-actors-in-patient-selection-for-cancer-immunotherapy
#8
Federica Zito Marino, Paolo Antonio Ascierto, Giulio Rossi, Stefania Staibano, Marco Montella, Daniela Russo, Roberto Alfano, Alessandro Morabito, Gerardo Botti, Renato Franco
Tumor-infiltrating lymphocytes (TILs) are frequently observed in several tumors, reflecting the dynamic process of ''cancer immunoediting''. Prognostic and predictive values of TILs have been demonstrated in different cancers, proving their pivotal role in clinical outcome. In recent years, new therapies targeting immune checkpoint inhibitors, especially CTLA-4 and PD-1/PDL-1 pathways, have been introduced into clinical practice. In this context, TILs may even have a possible utility as a predictive biomarker for immunotherapy response...
March 20, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28289947/in-vivo-and-in-vitro-identification-of-endocannabinoid-signaling-in-periodontal-tissues-and-their-potential-role-in-local-pathophysiology
#9
Anna Konermann, Andreas Jäger, Stefanie A E Held, P Brossart, Anne Schmöle
The endocannabinoid system (ECS) with its binding receptors CB1 and CB2 impacts multiple pathophysiologies not only limited to neuronal psychoactivity. CB1 is assigned to cerebral neuron action, whereas CB2 is mainly expressed in different non-neuronal tissues and associated with immunosuppressive effects. Based on these tissue-selective CB receptor roles, it was the aim of this study to analyze potential expression in periodontal tissues under physiological conditions and inflammatory states. In vivo, CB receptor expression was investigated on human periodontal biopsies with or without bacterial inflammation and on rat maxillae with or without sterile inflammation...
March 14, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28287599/a-versatile-method-of-patterning-proteins-and-cells
#10
Anil B Shrirao, Frank H Kung, Derek Yip, Bonnie L Firestein, Cheul H Cho, Ellen Townes-Anderson
Substrate and cell patterning techniques are widely used in cell biology to study cell-to-cell and cell-to-substrate interactions. Conventional patterning techniques work well only with simple shapes, small areas and selected bio-materials. This article describes a method to distribute cell suspensions as well as substrate solutions into complex, long, closed (dead-end) polydimethylsiloxane (PDMS) microchannels using negative pressure. This method enables researchers to pattern multiple substrates including fibronectin, collagen, antibodies (Sal-1), poly-D-lysine (PDL), and laminin...
February 26, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28285560/prospective-pilot-study-on-combined-use-of-pulsed-dye-laser-and-1-topical-rapamycin-for-treatment-of-non-facial-cutaneous-capillary-malformation
#11
Eun Jin Doh, Jungyoon Ohn, Min Ji Kim, Young Gull Kim, Soyun Cho
BACKGROUND: The regeneration or revascularization of blood vessels after pulsed dye laser (PDL) treatment is one of the causes of treatment failures of cutaneous capillary malformations (CM). Recently, topical administration of rapamycin was introduced as a possible adjunctive therapeutic option to minimize post-laser revascularization in facial CM. OBJECTIVES: We evaluated the effect of combined use of 1% topical rapamycin with PDL compared to PDL alone in cutaneous CM of trunk or extremities and tried to identify the optimal duration of topical rapamycin application...
March 13, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28269276/toward-a-distributed-free-floating-wireless-implantable-neural-recording-system
#12
Pyungwoo Yeon, Xingyuan Tong, Byunghun Lee, Abdollah Mirbozorgi, Bruce Ash, Helmut Eckhardt, Maysam Ghovanloo
To understand the complex correlations between neural networks across different regions in the brain and their functions at high spatiotemporal resolution, a tool is needed for obtaining long-term single unit activity (SUA) across the entire brain area. The concept and preliminary design of a distributed free-floating wireless implantable neural recording (FF-WINeR) system are presented, which can enabling SUA acquisition by dispersedly implanting tens to hundreds of untethered 1 mm3 neural recording probes, floating with the brain and operating wirelessly across the cortical surface...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28245286/sparc-and-the-n-propeptide-of-collagen-i-influence-fibroblast-proliferation-and-collagen-assembly-in-the-periodontal-ligament
#13
Emilie Moore Rosset, Jessica Trombetta-eSilva, Glenn Hepfer, Hai Yao, Amy Dodd Bradshaw
The periodontal ligament (PDL) is a fibrous connective tissue that anchors tooth cementum into alveolar bone. Secreted protein acidic and rich in cysteine (SPARC) is a collagen-binding matricellular protein known to influence collagen fiber assembly in the PDL. In contrast, functional properties of the N-propeptide of collagen I, encoded in exon 2 of the COL1A1 gene, are poorly understood. In this study, the PDL of collagen I exon 2-deleted (wt/ko), SPARC-null (ko/wt), and double transgenic (ko/ko) mice were evaluated in terms of cellularity, collagen area, fiber morphology, and extraction force and compared to WT (wt/wt) mice...
2017: PloS One
https://www.readbyqxmd.com/read/28244186/cerebrospinal-fluid-levels-of-catecholamines-and-its-metabolites-in-parkinson-s-disease-effect-of-l-dopa-treatment-and-changes-in-levodopa-induced-dyskinesia
#14
Andreas Dammann Andersen, Morten Blaabjerg, Michael Binzer, Akram Kamal, Helle Thagesen, Troels Wesenberg Kjaer, Egon Stenager, Jan Bert Paul Gramsbergen
Levodopa (l-DOPA, l-3,4-dihydroxyphenylalanine) is the most effective drug in the symptomatic treatment of Parkinson's disease (PD), but chronic use initiates a maladaptive process leading to l-DOPA-induced dyskinesia (LID). Risk factors for early onset LID include younger age, more severe disease at baseline and higher daily l-DOPA dose, but biomarkers to predict the risk of motor complications are not yet available. Here, we investigated whether CSF levels of catecholamines and its metabolites are altered in PD patients with LID [PD-LID, n = 8)] as compared to non-dyskinetic PD patients receiving l-DOPA (PD-L, n = 6), or not receiving l-DOPA (PD-N, n = 7) as well as non-PD controls (n = 16)...
February 28, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28241862/transcriptome-analysis-of-lentil-lens-culinaris-medikus-in-response-to-seedling-drought-stress
#15
Dharmendra Singh, Chandan Kumar Singh, Jyoti Taunk, Ram Sewak Singh Tomar, Ashish Kumar Chaturvedi, Kishor Gaikwad, Madan Pal
BACKGROUND: Drought stress is one of the most harmful abiotic stresses in crop plants. As a moderately drought tolerant crop, lentil is a major crop in rainfed areas and a suitable candidate for drought stress tolerance research work. Screening for drought tolerance stress under hydroponic conditions at seedling stage with air exposure is an efficient technique to select genotypes with contrasting traits. Transcriptome analysis provides valuable resources, especially for lentil, as here the information on complete genome sequence is not available...
February 27, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28230773/programmed-death-ligand-1-pd-l1-tumor-expression-is-associated-with-a-better-prognosis-and-diabetic-disease-in-triple-negative-breast-cancer-patients
#16
Gerardo Botti, Francesca Collina, Giosuè Scognamiglio, Federica Rao, Valentina Peluso, Rossella De Cecio, Michela Piezzo, Gabriella Landi, Michelino De Laurentiis, Monica Cantile, Maurizio Di Bonito
Triple Negative Breast Cancers (TNBC) subtype is an aggressive disease with poor clinical outcome. The only treatment available is surgery followed by chemotherapy or radiotherapy. Programmed death-ligand 1 (PD-L1) is a trans-membrane protein expressed on a wide variety of cells including immune cells, epithelial and vascular endothelial cells. Recently, PD-1/PD-L1 pathway signaling was described as an adaptive immune resistance mechanism enacted by the tumor cells to evade the immune response. Its presence on tumor cell membranes, acquired for this reason, through time, is an important prognostic value...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28227511/toward-a-distributed-free-floating-wireless-implantable-neural-recording-system
#17
Pyungwoo Yeon, Xingyuan Tong, Byunghun Lee, Abdollah Mirbozorgi, Bruce Ash, Helmut Eckhardt, Maysam Ghovanloo, Pyungwoo Yeon, Xingyuan Tong, Byunghun Lee, Abdollah Mirbozorgi, Bruce Ash, Helmut Eckhardt, Maysam Ghovanloo, Maysam Ghovanloo, Byunghun Lee, Bruce Ash, Xingyuan Tong, Pyungwoo Yeon, Abdollah Mirbozorgi, Helmut Eckhardt
To understand the complex correlations between neural networks across different regions in the brain and their functions at high spatiotemporal resolution, a tool is needed for obtaining long-term single unit activity (SUA) across the entire brain area. The concept and preliminary design of a distributed free-floating wireless implantable neural recording (FF-WINeR) system are presented, which can enabling SUA acquisition by dispersedly implanting tens to hundreds of untethered 1 mm(3) neural recording probes, floating with the brain and operating wirelessly across the cortical surface...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223136/wnt3%C3%AE-and-transforming-growth-factor-%C3%AE-induce-myofibroblast-differentiation-from-periodontal-ligament-cells-via-different-pathways
#18
Hui Xu, Yao He, Jian Q Feng, Rui Shu, Zhe Liu, Jingyu Li, Yating Wang, Yang Xu, Huan Zeng, Xin Xu, Zichao Xiang, Chaoran Xue, Ding Bai, Xianglong Han
Myofibroblasts are specialized cells that play a key role in connective tissue remodeling and reconstruction. Alpha-smooth muscle actin (α-SMA), vimentin and tenascin-C are myofibroblast phenotype, while α-SMA is the phenotypic marker. The observation that human periodontal ligament cells (hPDLCs) differentiate into myofibroblasts under orthodontic force has provided a new perspective for understanding of the biological and biomechanical mechanisms involved in orthodontic tooth movement. However, the cell-specific molecular mechanisms leading to myofibroblast differentiation in the periodontal ligament (PDL) remain unclear...
February 20, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28222387/baicalein-enhances-the-osteogenic-differentiation-of-human-periodontal-ligament-cells-by-activating-the-wnt-%C3%AE-catenin-signaling-pathway
#19
Li-Jiao Chen, Bi-Bo Hu, Xin-Lian Shi, Man-Man Ren, Wen-Bin Yu, Sheng-Dan Cen, Rong-Dang Hu, Hui Deng
OBJECTIVE: Periodontium regeneration is one of the most important processes for periodontitis therapy. Human periodontal ligament cells (hPDLCs) play a vital role in the repair and regeneration of periodontal tissues. Our study aimed to investigated the mechanisms underlying the promotion of hPLDCs osteogenic differentiation by baicalein. DESIGN: hPDLCs were obtained from periodontal ligament (PDL) tissues by primary culture. The MTT assay was used to determine the growth curves of hPDLCs treated with different concentrations of baicalein (1...
February 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28194153/nasal-polyp-derived-mesenchymal-stromal-cells-exhibit-lack-of-immune-associated-molecules-and-high-levels-of-stem-progenitor-cells-markers
#20
Pedro Wey Barbosa de Oliveira, Rogério Pezato, Juan Sebastian Henao Agudelo, Claudina Angela Perez-Novo, Wim Vanden Berghe, Niels Olsen Câmara, Danilo Candido de Almeida, Luís Carlos Gregorio
Mesenchymal stromal cells (MSCs) are considered adult progenitor stem cells and have been studied in a multitude of tissues. In this context, the microenvironment of nasal polyp tissue has several inflammatory cells, but their stroma compartment remains little elucidated. Hence, we isolated MSCs from nasal polyps Polyp-MSCs (PO-MSCs) and compared their molecular features and gene expression pattern with bone marrow-derived MSCs (BM-MSCs). Initially, both PO-MSCs and BM-MSCs were isolated, cultivated, and submitted to morphologic, differentiation, phenotypic, immunosuppressive, and gene expression assays...
2017: Frontiers in Immunology
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