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https://www.readbyqxmd.com/read/29151079/mechanisms-of-vasorelaxation-induced-by-total-flavonoids-of-euphorbia-humifusa-in-rat-aorta
#1
T T Wang, Z Q Zhou, S Wang, X W Ji, B Wu, L Y Sun, J F Wen, D G Kang, H S Lee, K W Cho, S N Jin
Euphorbia humifusa Willd. (EH), rich in flavonoids, has long been used for the treatment of bacillary dysentery and enteritis in China, and is known to have antioxidant, hypotensive and hypolipidemic properties. However, the vasorelaxant effect of total flavonoids of EH (TFEH) and action mechanisms are not clearly defined yet. The aim of the present study was to investigate the effects of TFEH on the vascular tension and its underlying mechanisms. Experiments were performed in rat thoracic aorta using the organ bath system...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151021/regulatory-t-cells-induced-by-b-cells-a-novel-subpopulation-of-regulatory-t-cells
#2
REVIEW
Chien-Hui Chien, Bor-Luen Chiang
Regulatory T cells play a crucial role in the homeostasis of the immune response. In addition to CD4(+)Foxp3(+) regulatory T cells, several subsets of Foxp3(-) regulatory T cells, such as T helper 3 (Th3) cells and type 1 regulatory T (Tr1) cells, have been described in mice and human. Accumulating evidence shows that naïve B cells contribute to tolerance and are able to promote regulatory T cell differentiation. Naïve B cells can convert CD4(+)CD25(-) T cells into CD25(+)Foxp3(-) regulatory T cells, named Treg-of-B cells by our group...
November 18, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29149987/inhibition-of-porcine-endogenous-retrovirus-by-multi-targeting-micro-rna-against-long-terminal-region
#3
H-C Chung, V-G Nguyen, W-T Oh, T-M-L Huynh, H-J Moon, J-H Lee, H-K Kim, S-J Park, B-K Park
BACKGROUND: There might be much benefit in xenotransplantation, however, the risk of infections across species barriers remains, especially porcine endogenous retrovirus (PERV). To date, many attempts have been made to knock down active PERVs by inhibitory RNA (RNAi) and micro RNA (miRNA), which target different genes of PERV. There are a few studies that have explored whether targeting promoter regions of PERV could exert an inhibition effect. METHODS: miRNAs were automatically selected based on an online program BLOCK-iT RNAi Designer...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149896/liposomal-vaccine-formulations-as-prophylactic-agents-design-considerations-for-modern-vaccines
#4
REVIEW
Luis O De Serrano, David J Burkhart
Vaccinology is one of the most important cornerstones in modern medicine, providing better quality of life. The human immune system is composed of innate and adaptive immune processes that interplay when infection occurs. Innate immunity relies on pathogen-associated molecular patterns which are recognized by pathogen recognition receptors localized in antigen presenting cells. After antigen processing and presentation, CD4(+) T cell polarization occurs, further leading to B cell and CD8(+) activation and humoral and cell-mediated adaptive immune responses...
November 17, 2017: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29149822/olive-leaf-extracts-act-as-modulators-of-the-human-immune-response
#5
Thea Magrone, Anna Spagnoletta, Rosaria Salvatore, Manrico Magrone, Francesco Dentamaro, Matteo Antonio Russo, Graziana Difonzo, Carmine Summo, Francesco Caponio, Emilio Jirillo
BACKGROUND: Olive tree leaves have been used in the Mediterranean area as traditional medicine in virtue of their healthy effects. Olive leaf extracts (OLEs) contain higher amounts of polyphenols than those detected in the extra virgin olive oil and fruit. Several lines of evidence support the cardioprotective, anti-oxidant and anti-inflammatory activities exerted by OLEs. METHODS: Peripheral blood mononuclear cells (PBMCs) from twenty-five healthy donors were cultured in the presence of 3 μg of two OLE extracts, extract A (resuspended in water) and extract B (resuspended in 70% ethanol)...
November 15, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29149648/dried-plum-alleviates-symptoms-of-inflammatory-arthritis-in-tnf-transgenic-mice
#6
Faryal Mirza, Joseph Lorenzo, Hicham Drissi, Francis Y Lee, Do Y Soung
Dried plum (DP), a rich source of polyphenols has been shown to have bone-preserving properties in both animal models of osteoporosis and postmenopausal women. We evaluated if DP alleviated the destruction of joints in transgenic mice (TG) that overexpress human tumor necrosis factor (TNF), a genetic model of rheumatoid arthritis (RA). A four-week treatment of 20% DP diet in TG slowed the onset of arthritis and reduced bone erosions in the joints compared to TG on a regular diet. This was associated with fewer tartrate-resistant acid phosphatase (TRAP) positive cells, suggesting decreased osteoclastogenesis...
October 16, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29149416/history-of-histamine-releasing-factor-hrf-translationally-controlled-tumor-protein-tctp-including-a-potential-therapeutic-target-in-asthma-and-allergy
#7
Susan M MacDonald
Histamine-releasing factor (HRF) also known as translationally controlled tumor protein (TCTP) is a highly conserved, ubiquitous protein that has both intracellular and extracellular functions. Here we will highlight the subcloning of the molecule, its clinical implications, as well as an inducible-transgenic mouse. Particular attention will be paid to its extracellular functioning and its potential role as a therapeutic target in asthma and allergy. The cells and the cytokines that are produced when stimulated or primed by HRF/TCTP will be detailed as well as the downstream signaling pathway that HRF/TCTP elicits...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/29148755/novel-anti-tubercular-6-dialkylaminopyrimidine-carboxamides-from-phenotypic-whole-cell-high-throughput-screening-of-a-softfocus-library-structure-activity-relationship-and-target-identification-studies
#8
Colin R Wilson, Richard K Gessner, Atica Moosa, Ronnett Seldon, Digby F Warner, Valerie Mizrahi, Candice Soares de Melo, Sandile B Simelane, Aloysius T Nchinda, Efrem Abay, Dale Taylor, Mathew Njoroge, Christel Brunschwig, Nina Lawrence, Helena I M Boshoff, Clifton E Barry, Frederick A Sirgel, Paul van Helden, C John Harris, Richard Gordon, Sonja Ghidelli-Disse, Hannah Pflaumer, Markus Boesche, Gerard Drewes, Olalla Sanz, Gracia Santos, Maria José Rebollo-Lopez, Beatriz Urones, Carolyn Selenski, Maria Jose Lafuente-Monasterio, Matthew Axtman, Joël Lelièvre, Lluis Ballell, Rudolf Mueller, Leslie J Street, Sandeep R Ghorpade, Kelly Chibale
A BioFocus DPI SoftFocus library of ~35,000 compounds was screened against Mycobacterium tuberculosis (Mtb) in order to identify novel hits with anti-tubercular activity. The hits were evaluated in biology triage assays to exclude compounds suggested to function via frequently encountered promiscuous mechanisms of action including inhibition of the QcrB subunit of the cytochrome bc1 complex, disruption of cell-wall homeostasis, and DNA damage. Among the hits which passed this screening cascade, a 6-dialkylaminopyrimidine carboxamide series was prioritized for hit to lead optimization...
November 17, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29148537/adenomatoid-tumors-of-the-male-and-female-genital-tract-are-defined-by-traf7-mutations-that-drive-aberrant-nf-kb-pathway-activation
#9
Benjamin Goode, Nancy M Joseph, Meredith Stevers, Jessica Van Ziffle, Courtney Onodera, Eric Talevich, James P Grenert, Iwei Yeh, Boris C Bastian, Joanna J Phillips, Karuna Garg, Joseph T Rabban, Charles Zaloudek, David A Solomon
Adenomatoid tumors are the most common neoplasm of the epididymis, and histologically similar adenomatoid tumors also commonly arise in the uterus and fallopian tube. To investigate the molecular pathogenesis of these tumors, we performed genomic profiling on a cohort of 31 adenomatoid tumors of the male and female genital tracts. We identified that all tumors harbored somatic missense mutations in the TRAF7 gene, which encodes an E3 ubiquitin ligase belonging to the family of tumor necrosis factor receptor-associated factors (TRAFs)...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29147628/trial-watch-adoptively-transferred-cells-for-anticancer-immunotherapy
#10
REVIEW
Carole Fournier, François Martin, Laurence Zitvogel, Guido Kroemer, Lorenzo Galluzzi, Lionel Apetoh
Immunotherapies aimed at strengthening immune effector responses against malignant cells are growing at exponential rates. Alongside, the impressive benefits obtained by patients with advanced melanoma who received adoptively transferred tumor-infiltrating lymphocytes (TILs) have encouraged the scientific community to pursue adoptive cell transfer (ACT)-based immunotherapy. ACT involves autologous or allogenic effector lymphocytes that are generally obtained from the peripheral blood or resected tumors, expanded and activated ex vivo, and administered to lymphodepleted patients...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147614/exploiting-a-new-strategy-to-induce-immunogenic-cell-death-to-improve-dendritic-cell-based-vaccines-for-lymphoma-immunotherapy
#11
B Montico, C Lapenta, M Ravo, D Martorelli, E Muraro, B Zeng, E Comaro, M Spada, S Donati, S M Santini, R Tarallo, G Giurato, F Rizzo, A Weisz, F Belardelli, R Dolcetti, J Dal Col
Although promising, the clinical benefit provided by dendritic cell (DC)-based vaccines is still limited and the choice of the optimal antigen formulation is still an unresolved issue. We have developed a new DC-based vaccination protocol for aggressive and/or refractory lymphomas which combines the unique features of interferon-conditioned DC (IFN-DC) with highly immunogenic tumor cell lysates (TCL) obtained from lymphoma cells undergoing immunogenic cell death. We show that treatment of mantle cell lymphoma (MCL) and diffuse large B-cell lymphoma (DLBCL) cell lines with 9-cis-retinoic acid and IFNα (RA/IFNα) induces early membrane exposure of Calreticulin, HSP70 and 90 together with CD47 down-regulation and enhanced HMGB1 secretion...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29146881/beta-adrenergic-signaling-impairs-anti-tumor-cd8-t-cell-responses-to-b-cell-lymphoma-immunotherapy
#12
Michael D Nissen, Erica K Sloan, Stephen R Mattarollo
Beta-adrenergic receptor (betaAR) signaling regulates many physiological processes, including immune system responses. There is growing evidence also for betaAR-induced modulation of cancer growth and metastasis. In the Eu-myc mouse model of B-cell lymphoma, we investigated the effects of chronically elevated betaAR signaling on lymphoma progression and anti-tumor immunity, as well as the impact on cancer immunotherapy. Chronic treatment with the non-selective beta-agonist isoprenaline promoted lymphoma development in a manner dependent on signaling within the hematopoietic compartment...
November 16, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/29145573/human-papillomavirus-hpv-and-somatic-egfr-mutations-are-essential-mutually-exclusive-oncogenic-mechanisms-for-inverted-sinonasal-papillomas-and-associated-sinonasal-squamous-cell-carcinomas
#13
A M Udager, J B McHugh, C M Goudsmit, H C Weigelin, M S Lim, K S J Elenitoba-Johnson, B L Betz, T E Carey, N A Brown
Background: Inverted sinonasal papilloma (ISP) is a locally aggressive neoplasm often associated with sinonasal squamous cell carcinoma (SNSCC). While the etiology of ISP is not well understood, human papillomavirus (HPV) has been detected in a subset of cases. Our group recently identified activating somatic EGFR mutations in the majority of ISP and ISP-associated SNSCC. However, the relationship between EGFR mutations and HPV infection has not been explored. Patients and Methods: We evaluated 58 ISP and 22 ISP-associated SNSCC (including 13 patients with matched ISP/SNSCC samples), as well as 14 SNSCC without clinical or pathologic evidence of an associated ISP...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29145476/an-immunohistochemical-identification-key-for-cell-types-in-adult-mouse-prostatic-and-urethral-tissue-sections
#14
Kyle A Wegner, Mark T Cadena, Ryan Trevena, Anne E Turco, Adam Gottschalk, Richard B Halberg, Jinjin Guo, Jill A McMahon, Andrew P McMahon, Chad M Vezina
Though many methods can be used to identify cell types contained in complex tissues, most require cell disaggregation and destroy information about where cells reside in relation to their microenvironment. Here, we describe a polytomous key for cell type identification in intact sections of adult mouse prostate and prostatic urethra. The key is organized as a decision tree and initiates with one round of immunostaining for nerve, epithelial, fibromuscular/hematolymphoid, or vascular associated cells. Cell identities are recursively eliminated by subsequent staining events until the remaining pool of potential cell types can be distinguished by direct comparison to other cells...
2017: PloS One
https://www.readbyqxmd.com/read/29142122/adaptive-immune-responses-following-senecavirus-a-infection-in-pigs
#15
Mayara F Maggioli, Steve Lawson, Marcelo de Lima, Lok R Joshi, Tatiane C Faccin, Fernando V Bauermann, Diego G Diel
Senecavirus A (SVA), an emerging picornavirus of swine, causes vesicular disease (VD) that is clinically indistinguishable from foot-and-mouth disease (FMD) in pigs. Many aspects of SVA interactions with the host and the host immune responses to infection, however, remain unknown. In the present study, humoral and cellular immune responses to SVA were evaluated following infection in pigs. We show that SVA infection elicited an early and robust neutralizing antibody (NA) response, which coincided with and was strongly correlated with VP2- and VP3-specific IgM responses...
November 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29141946/age-related-clonal-hematopoiesis-arch
#16
Liran I Shlush
Age related alterations in the human blood system occur in B cells, T cells, cells of the innate system, as well as in hematopoietic stem and progenitor cells (HSPCs). Interestingly, age related, reduced genetic diversity can be identified both at the stem cell level, but also independently in B cells and T cells. This reduced diversity is most probably related to somatic mutations, or to changes in the micro-environmental niche. Either process can select for specific clones, or cause repeated evolutionary bottlenecks...
November 15, 2017: Blood
https://www.readbyqxmd.com/read/29141870/ig%C3%AE-ubiquitination-activates-pi3k-signals-required-for-endosomal-sorting
#17
Margaret Veselits, Azusa Tanaka, Yaoqing Chen, Keith Hamel, Malay Mandal, Matheswaran Kandasamy, Balaji Manicassamy, Shannon K O'Neill, Patrick Wilson, Roger Sciammas, Marcus R Clark
A wealth of in vitro data has demonstrated a central role for receptor ubiquitination in endocytic sorting. However, how receptor ubiquitination functions in vivo is poorly understood. Herein, we report that ablation of B cell antigen receptor ubiquitination in vivo uncouples the receptor from CD19 phosphorylation and phosphatidylinositol 3-kinase (PI3K) signals. These signals are necessary and sufficient for accumulating phosphatidylinositol (3,4,5)-trisphosphate (PIP3) on B cell receptor-containing early endosomes and proper sorting into the MHC class II antigen-presenting compartment (MIIC)...
November 15, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29141035/influence-of-boron-supplementation-on-performance-immunity-and-antioxidant-status-of-lambs-fed-diets-with-or-without-adequate-level-of-calcium
#18
T Vijay Bhasker, N K S Gowda, D T Pal, S Karthik Bhat, P Krishnamoorthy, S Mondal, A K Pattanaik, A K Verma
Little is known about biological significance of effects of dietary Boron (B) and Calcium (Ca) interaction on health and production of farm animals. This is a preliminary investigation to evaluate the effects of B supplementation in lambs fed diets with (normal) or without adequate (low) levels of Ca. Twenty-four crossbred ram lambs were randomly distributed into four groups with six animals each in a 2x2 factorial design namely, normal-Ca diet (NCa) and low-Ca diet (LCa) fed without or with 40 ppm B (NCaB-40 and LCaB-40)...
2017: PloS One
https://www.readbyqxmd.com/read/29140957/beneficial-effects-of-angiotensin-1-7-on-cd34-cells-from-heart-failure-patients
#19
Colleen T Cole-Jeffrey, Carl J Pepine, Michael J Katovich, Maria B Grant, Mohan K Raizada, Sugata Hazra
The dysfunctional nature of CD34 cells from heart failure (HF) patients makes them unsuitable for autologous stem cell therapy. In view of evidence that the vasoprotective axis of the renin-angiotensin system (RAS) improves CD34 cell functions, we hypothesized that CD34 cells from HF patients will be dysfunctional and that Angiotensin-(1-7) [Ang-(1-7)] would improve their function. Peripheral blood was collected from NYHA class II-IV HF patients (n=31) and reference subjects (n=16). CD34 cell numbers from HF patients were reduced by 47% (p<0...
November 8, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29140820/renal-effects-of-cytokines-in-hypertension
#20
Yi Wen, Steven D Crowley
PURPOSE OF REVIEW: Inflammatory cytokines contribute to the pathogenesis of hypertension through effects on renal blood flow and sodium handling. This review will update recent advances that explore the renal actions of immune cells and cytokines in the pathogenesis of hypertension. RECENT FINDINGS: Populations of cells from both the innate and adaptive immune systems contribute to hypertension by modulating functions of the vasculature and epithelial cells in the kidney...
November 14, 2017: Current Opinion in Nephrology and Hypertension
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