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https://www.readbyqxmd.com/read/28545251/oxidative-stress-promoter-of-allergic-sensitization-to-protease-allergens
#1
REVIEW
Leonie S van Rijt, Lara Utsch, René Lutter, Ronald van Ree
Allergies arise from aberrant T helper type 2 responses to allergens. Several respiratory allergens possess proteolytic activity, which has been recognized to act as an adjuvant for the development of a Th2 response. Allergen source-derived proteases can activate the protease-activated receptor-2, have specific effects on immune cells by cleaving cell membrane-bound regulatory molecules, and can disrupt tight junctions. The protease activity can induce a non-allergen-specific inflammatory response in the airways, which will set the stage for an allergen-specific Th2 response...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28545241/lactobacillus-rhamnosus-hn001-and-lactobacillus-acidophilus-la-14-attenuate-gardnerella-vaginalis-infected-bacterial-vaginosis-in-mice
#2
Se-Eun Jang, Jin-Ju Jeong, Su-Young Choi, Hyunji Kim, Myung Joo Han, Dong-Hyun Kim
Oral administration of a probiotic mixture (PM; Respecta(®)) consisting of Lactobacillus rhamnosus HN001 (L1), Lactobacillus acidophilus La-14 (L2), and lactoferrin RCXTM results in colonization of these probiotics in the vagina of healthy women. Therefore, we examined whether vaginal colonization of the PM ingredients L1 and L2 could attenuate bacterial vaginosis (BV). BV was induced in mice via β-estradiol-3-benzoate-induced immunosuppression and intravaginal inoculation with Gardnerella vaginalis (GV)...
May 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28545238/epigenetic-strategies-to-boost-cancer-immunotherapies
#3
REVIEW
Maria J Barrero
Recently, immunotherapeutic approaches have shown impressive responses in a subset of cancer patients. However, the rate of success is low and a large percentage of treated patients do not experience clinical benefits. Therefore, additional strategies are needed to improve responses and select responsive patients. Emerging data suggest that epigenetic drugs can improve the responses to immunotherapy. Understanding the mechanisms of resistance to immunotherapy and the epigenetic events that take place during immune evasion is critical to providing a rational combined use of immunotherapies and epigenetic drugs...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28545228/aberrant-dna-methylation-as-a-biomarker-and-a-therapeutic-target-of-cholangiocarcinoma
#4
REVIEW
Toshiaki Nakaoka, Yoshimasa Saito, Hidetsugu Saito
Cholangiocarcinoma is an epithelial malignancy arising in the region between the intrahepatic bile ducts and the ampulla of Vater at the distal end of the common bile duct. The effect of current chemotherapy regimens against cholangiocarcinoma is limited, and the prognosis of patients with cholangiocarcinoma is poor. Aberrant DNA methylation and histone modification induce silencing of tumor suppressor genes and chromosomal instability during carcinogenesis. Studies have shown that the tumor suppressor genes and microRNAs (miRNAs) including MLH1, p14, p16, death-associated protein kinase (DAPK), miR-370 and miR-376c are frequently methylated in cholangiocarcinoma...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28545224/natural-inspired-intelligent-visual-computing-and-its-application-to-viticulture
#5
Li Minn Ang, Kah Phooi Seng, Feng Lu Ge
This paper presents an investigation of natural inspired intelligent computing and its corresponding application towards visual information processing systems for viticulture. The paper has three contributions: (1) a review of visual information processing applications for viticulture; (2) the development of natural inspired computing algorithms based on artificial immune system (AIS) techniques for grape berry detection; and (3) the application of the developed algorithms towards real-world grape berry images captured in natural conditions from vineyards in Australia...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545134/structures-of-the-inactive-and-active-states-of-rip2-kinase-inform-on-the-mechanism-of-activation
#6
Erika Pellegrini, Luca Signor, Saurabh Singh, Elisabetta Boeri Erba, Stephen Cusack
Innate immune receptors NOD1 and NOD2 are activated by bacterial peptidoglycans leading to recruitment of adaptor kinase RIP2, which, upon phosphorylation and ubiquitination, becomes a scaffold for downstream effectors. The kinase domain (RIP2K) is a pharmaceutical target for inflammatory diseases caused by aberrant NOD2-RIP2 signalling. Although structures of active RIP2K in complex with inhibitors have been reported, the mechanism of RIP2K activation remains to be elucidated. Here we analyse RIP2K activation by combining crystal structures of the active and inactive states with mass spectrometric characterization of their phosphorylation profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28545102/effect-of-dietary-restriction-and-subsequent-re-alimentation-on-the-transcriptional-profile-of-bovine-ruminal-epithelium
#7
Kate Keogh, Sinead M Waters, Paul Cormican, Alan K Kelly, Emma O'Shea, David A Kenny
Compensatory growth (CG) is utilised worldwide in beef production systems as a management approach to reduce feed costs. However the underlying biology regulating the expression of CG remains to be fully elucidated. The objective of this study was to examine the effect of dietary restriction and subsequent re-alimentation induced CG on the global gene expression profile of ruminal epithelial papillae. Holstein Friesian bulls (n = 60) were assigned to one of two groups: restricted feed allowance (RES; n = 30) for 125 days (Period 1) followed by ad libitum access to feed for 55 days (Period 2) or (ii) ad libitum access to feed throughout (ADLIB; n = 30)...
2017: PloS One
https://www.readbyqxmd.com/read/28545100/intranasal-delivery-of-a-bivalent-norovirus-vaccine-formulated-in-an-in-situ-gelling-dry-powder
#8
Jordan P Ball, Michael J Springer, Yawei Ni, Isaac Finger-Baker, Juan Martinez, Jessica Hahn, John F Suber, Ashley V DiMarco, James D Talton, Ronald R Cobb
The global health community is beginning to understand the burden of norovirus-associated disease, which has a significant impact in both developed and developing countries. Norovirus virus like particle (VLP)-based vaccines are currently under development and have been shown to elicit systemic and mucosal immune responses when delivered intranasally. In the present study, we describe the use of a dry powder formulation (GelVac™) with an in situ gelling polysaccharide (GelSite™) extracted from Aloe vera for nasal delivery of a bivalent vaccine formulation containing both GI and GII...
2017: PloS One
https://www.readbyqxmd.com/read/28545093/ending-preventable-maternal-and-child-deaths-in-western-nigeria-do-women-utilize-the-life-lines
#9
Titilayo Olaitan, Ifeoma P Okafor, Adebayo T Onajole, Olayinka A Abosede
INTRODUCTION: Nigeria which constitutes just one percent of the world population, accounts for 13% of the world maternal and under-five mortality. Utilization of health care services has been an important determinant of maternal and child outcomes. The vast majority of maternal and child deaths could be prevented if women utilize the available life lines. The study objective was to determine utilization of maternal and child health care services among women of child bearing age in Western Nigeria...
2017: PloS One
https://www.readbyqxmd.com/read/28545047/the-natural-history-of-varicella-zoster-virus-infection-in-norway-further-insights-on-exogenous-boosting-and-progressive-immunity-to-herpes-zoster
#10
Luigi Marangi, Grazina Mirinaviciute, Elmira Flem, Gianpaolo Scalia Tomba, Giorgio Guzzetta, Birgitte Freiesleben de Blasio, Piero Manfredi
We use age-structured models for VZV transmission and reactivation to reconstruct the natural history of VZV in Norway based on available pre-vaccination serological data, contact matrices, and herpes zoster incidence data. Depending on the hypotheses on contact and transmission patterns, the basic reproduction number of varicella in Norway ranges between 3.7 and 5.0, implying a vaccine coverage between 73 and 80% to effectively interrupt transmission with a 100% vaccine efficacy against infection. The varicella force of infection peaks during early childhood (3-5 yrs) and shows a prolonged phase of higher risk during the childbearing period, though quantitative variations can occur depending on contact patterns...
2017: PloS One
https://www.readbyqxmd.com/read/28545019/circulating-soluble-programmed-death-1-levels-may-differentiate-immune-tolerant-phase-from-other-phases-and-hepatocellular-carcinoma-from-other-clinical-diseases-in-chronic-hepatitis-b-virus-infection
#11
Na Li, Zhihua Zhou, Fang Li, Jiao Sang, Qunying Han, Yi Lv, Wenxuan Zhao, Chunyan Li, Zhengwen Liu
Programmed death-1 (PD-1) is involved in the immune dysfunction of hepatitis B virus (HBV) infection and hepatocellular carcinoma (HCC). This study analyzed the association of circulating soluble PD-1 (sPD-1) levels with the phases and clinical diseases in chronic HBV infection. Serum sPD-1 levels were determined by enzyme linked immunosorbent assay in patients with different phases and liver diseases of chronic HBV infection. The sPD-1 levels in patients with chronic HBV infection were significantly elevated compared with HBV infection resolvers or healthy controls...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28545004/autophagy-as-an-emerging-arena-for-plant-pathogen-interactions
#12
REVIEW
Daniel Hofius, Liang Li, Anders Hafrén, Nuria S Coll
Autophagy is a highly conserved degradation and recycling process that controls cellular homeostasis, stress adaptation, and programmed cell death in eukaryotes. Emerging evidence indicates that autophagy is a key regulator of plant innate immunity and contributes with both pro-death and pro-survival functions to antimicrobial defences, depending on the pathogenic lifestyle. In turn, several pathogens have co-opted and evolved strategies to manipulate host autophagy pathways to the benefit of infection, while some eukaryotic microbes require their own autophagy machinery for successful pathogenesis...
May 22, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28544973/pegylation-of-a-tlr2-agonist-based-vaccine-delivery-system-improves-antigen-trafficking-and-the-magnitude-of-ensuing-antibody-and-cd8-t-cell-responses
#13
Toshiki Sekiya, Junya Yamagishi, John Henry V Gray, Paul G Whitney, Axel Martinelli, Weiguang Zeng, Chinn Yi Wong, Chihiro Sugimoto, David C Jackson, Brendon Y Chua
The lipopeptide R4Pam2Cys is an agonist for toll-like receptor-2 (TLR2), a key pathogen-associated molecular pattern receptor expressed on many antigen-presenting cells such as dendritic cells (DCs). Electrostatic association of R4Pam2Cys with soluble protein antigens significantly enhances their immunogenicity and there is evidence to suggest that reducing the size of suitably adjuvanted-antigen complexes in solution may further improve their immunostimulatory capabilities. In this study, we investigated how incorporation of polyethylene glycol (PEG) into R4Pam2Cys affects the size, activity and efficacy of formed antigen-lipopeptide complexes...
May 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28544857/new-treatment-directions-for-ipf-current-status-of-ongoing-and-upcoming-clinical-trials
#14
Francesco Macagno, Francesco Varone, Paolo Maria Leone, Pier-Valerio Mari, Loredana Panico, Ludovica Berardini, Luca Richeldi
The main objective of this review is to explore the wide and expanding field of new clinical trials in IPF. Recent trials have confirmed the efficacy of the approved drugs pirfenidone and nintedanib; nonetheless, the discovery of new biological pathways has opened new horizons in this field. Areas Covered: New strategies against matrix deposition are under study and so is for the role of immunity and autoimmunity. Recent advances in the use of stem cells are opening new possibilities for the recovery of damaged lung tissues...
May 25, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28544850/pcpp-adjuvanted-respiratory-syncytial-virus-rsv-sf-subunit-vaccine-self-assembled-supramolecular-complexes-enable-enhanced-immunogenicity-and-protection
#15
Corinne Cayatte, Alexander Marin, Gaurav Manohar Rajani, Kirsten Schneider-Ohrum, Angie Snell Bennett, Jason D Marshall, Alexander K Andrianov
PCPP, a well-defined polyphosphazene macromolecule, has been studied as an immunoadjuvant for a soluble form of the post-fusion glycoprotein (RSV sF) of RSV, which is an attractive vaccine candidate for inducing RSV-specific immunity in mice and humans. We demonstrate that RSV sF-PCPP formulations induce high neutralization titers to RSV comparable to Alum formulations even at a low PCPP dose and protect animals against viral challenge both in the lung and upper respiratory tract. PCPP formulations were also characterized by Th1-biased responses, compared to Th2-biased responses that are more typical for RSV sF alone or RSV sF-Alum formulations, suggesting an inherent immunostimulating activity of the polyphosphazene adjuvant...
May 25, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28544846/genomic-dna-interactions-mechanize-peptidotoxin-mediated-anti-cancer-nanotherapy
#16
Santosh K Misra, Aaron S Schwartz-Duval, Dipanjan Pan
Host defense peptides (HDPs) are a class of evolutionarily conserved substances of the innate immune response that has been identified as major players in the defense system in many living organisms. Some of the HDPs are also referred as peptidotoxins which offer immense potential for anti-cancer therapy. However, their therapeutic potential is yet to be fully translated mainly due to their off-target toxicity. Here we show that their nano-enabled delivery may become beneficial in controlling their delivery in intra-cellular space...
May 25, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28544821/predictive-model-for-high-frequency-microsatellite-instability-in-colorectal-cancer-patients-over-50%C3%A2-years-of-age
#17
Kenji Fujiyoshi, Tatsuro Yamaguchi, Miho Kakuta, Akemi Takahashi, Yoshiko Arai, Mina Yamada, Gou Yamamoto, Sachiko Ohde, Misato Takao, Shin-Ichiro Horiguchi, Soichiro Natsume, Shinsuke Kazama, Yusuke Nishizawa, Yoji Nishimura, Yoshito Akagi, Hirohiko Sakamoto, Kiwamu Akagi
Microsatellite instability (MSI) is an important biomarker for screening for Lynch syndrome, and also of response to immune checkpoint inhibitors. The aim of this study is to create a predictive model to determine which elderly patients with colorectal cancer (CRC) should undergo MSI and/or immunohistochemistry testing on the basis of clinicopathological data. We analyzed a test cohort of CRC patients aged ≥50 years (n = 2219) by multivariate logistic regression analyses to identify predictors of high-frequency MSI (MSI-H)...
May 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28544797/immune-mediated-inflammation-as-a-driver-of-obesity-and-comorbid-conditions
#18
Barbara Strasser
No abstract text is available yet for this article.
June 2017: Obesity
https://www.readbyqxmd.com/read/28544771/quantitative-proteomic-analysis-of-host-epithelial-cells-infected-by-salmonella-enterica-serovar-typhimurium
#19
Linlu Qi, Mo Hu, Jiaqi Fu, Yanhua Liu, Mei Wu, Kaiwen Yu, Xiaoyun Liu
Systems-level analyses have the capability to offer new insight into host-pathogen interactions on the molecular level. Using Salmonella infection of host epithelial cells as a model system, we previously analyzed intracellular bacterial proteome as a window into pathogens' adaptations to their host environment (Infect. Immun. 2015; J. Proteome Res. 2017). Herein we extended our efforts to quantitatively examine protein expression of host cells during infection. In total, we identified more than 5,000 proteins with 194 differentially regulated proteins upon bacterial infection...
May 25, 2017: Proteomics
https://www.readbyqxmd.com/read/28544689/class-ii-obese-and-healthy-pregnant-controls-exhibit-indistinguishable-pro-and-anti-inflammatory-immune-responses-to-caesarian-section
#20
Caroline Graham, Mullein Thorleifson, William P Stefura, Duane J Funk, Kent T HayGlass
INTRODUCTION: Obesity during pregnancy is associated with meta-inflammation and an increased likelihood of clinical complications. Surgery results in intense, acute inflammatory responses in any individual. Because obese individuals exhibit constitutive inflammatory responses and high rates of Caesarian section, it is important to understand the impact of surgery in such populations. Whether more pronounced pro-inflammatory cytokine responses and/or counterbalancing changes in anti-inflammatory immune modulators occurs is unknown...
May 25, 2017: Immunity, Inflammation and Disease
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