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Immunomodulator

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https://www.readbyqxmd.com/read/29452280/sticholysin-ii-mediated-cytotoxicity-involves-the-activation-of-regulated-intracellular-responses-that-anticipates-cell-death
#1
Carmen Soto, Gretchen Bergado, Rancés Blanco, Tania Griñán, Hermis Rodríguez, Uris Ros, Fabiola Pazos, María Eliana Lanio, Ana María Hernández, Carlos Álvarez
Sticholysin II (StII) is a pore-forming toxin of biomedical interest that belongs to the actinoporin protein family. Sticholysins are currently under examination as an active immunomodulating component of a vaccinal platform against tumoral cells and as a key element of a nucleic acids delivery system to cell cytosol. These proteins form pores in the plasma membrane leading to ion imbalance and cell lysis. However, the intracellular mechanisms triggered by actinoporins upon binding to membranes and its consequences for cell death are barely understood...
February 13, 2018: Biochimie
https://www.readbyqxmd.com/read/29449636/structural-elucidation-of-a-polysaccharide-from-flammulina-velutipes-and-its-immunomodulation-activities-on-mouse-b-lymphocytes
#2
Wen-Han Wang, Jing-Song Zhang, Ting Feng, Jing Deng, Chi-Chung Lin, Hua Fan, Wen-Juan Yu, Hai-Ying Bao, Wei Jia
A novel polysaccharide FVPB2 was purified from fruiting bodies of Flammulina velutipes. Its structure was elucidated by monosaccharide composition and methylation analyses, UV-Visible and FTIR spectroscopy as well as NMR. FVPB2 was a homogeneous heteropolysaccharide (molecular weight ~ 1.50 × 10 4 Da) containing D-galactose, D-mannose, L-fucose, and D-glucose at molar ratio of 1.9:1.2:1:2.5. In vitro immunomodulatory studies showed FVPB2 induced proliferation of mouse spleen lymphocytes in a dose-dependent manner...
February 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29448897/immunomodulation-by-food-impact-on-gut-immunity-and-immune-cell-function
#3
Satoshi Hachimura, Mamoru Totsuka, Akira Hosono
Recent studies have revealed that various food components affect the immune response. These components act on various immune cells, and their effects are mediated through the intestinal immune system and, in some cases, the intestinal microbiota. In this review, we describe the immunomodulating effects of various food components, including probiotics, prebiotics, polysaccharides, vitamins, minerals, fatty acids, peptides, amino acids and polyphenols. Some of these components enhance immune responses, leading to host defense against infection, whereas others inhibit immune responses, thus suppressing allergy and inflammation...
February 16, 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29447659/paraneoplastic-pemphigus-in-a-34-year-old
#4
Laura E Melnick, Jenna M Beasley, Randi Kim, Nooshin Brinster, Kristen Lo Sicco
Paraneoplastic Pemphigus (PNP) is a rare and often fatal autoimmune mucocutaneous blistering disease associated with an underlying malignancy. It is thought to be caused by antibodies to tumor antigenscross-reacting with epithelial antigens, specifically desmosomal and hemidesmosomal antigens. There are at least five clinical morphologic variants of PNP, with the earliest and most consistent finding beingsevere stomatitis. Diagnosis of PNP requires direct immunofluorescence of perilesional skin and indirect immunofluorescence...
December 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29447227/probiotic-effect-of-pichia-pastoris-x-33-produced-in-parboiled-rice-effluent-and-ypd-medium-on-broiler-chickens
#5
Diego Gil de Los Santos, João Rodrigo Gil de Los Santos, Carlos Gil-Turnes, Giana Gaboardi, Luiza Fernandes Silva, Rodrigo França, Cristina Gevehr Fernandes, Fabricio Rochedo Conceição
In a previous paper we showed that the yeast Pichia pastoris X-33 grown in parboiled rice effluent supplemented with glycerol byproduct from the biodiesel industry improved the quality of the effluent. In this paper we show the validation of this yeast (PPE) as probiotic for broilers. Its effect on feed efficiency and immunomodulation was compared with the same yeast grown in yeast peptone dextrose medium (PPY), with Saccharomyces boulardii (SBY) and with the controls fed unsupplemented feed (CON). One-day-old female chicks were vaccinated against infectious bursal disease (IBD) and the titers of anti-IBD antibodies were measured by ELISA...
2018: PloS One
https://www.readbyqxmd.com/read/29446737/gene-modified-mesenchymal-stem-cell-based-therapy-in-renal-ischemia-reperfusion-injury
#6
Hongbo Xu, Cheng Chen, Linkun Hu, Jianquan Hou
Acute kidney injury (AKI) is a common syndrome in the clinic and has become a worldwide public health problem. Renal ischemia-reperfusion injury (IRI) is the most common cause of AKI. So far, effective treatment is still lacking for renal IRI, resulting in a high mortality rate of AKI. Mesenchymal stem cells (MSCs), considered as a promising candidate for tissue repair and regenerative medicine have aroused an increasing concern in recent years for the capacity of self-renewal and multi-lineage differentiation...
February 13, 2018: Current Gene Therapy
https://www.readbyqxmd.com/read/29445611/immune-response-after-video-assisted-thoracic-surgery-in-non-small-cell-lung-cancer-patients
#7
Mirko Barone, Giuseppe Cipollone, Felice Mucilli
The effects of immunomodulation processes in patients undergoing video-assisted thoracic surgery (VATS) lobectomy are still debated; although, the reduced surgical stress of minimally invasive surgery is evident. The immunological repercussions could also influence the evolution of the disease and the prognosis of patients. The article aims to raise some points of reflection by considering available evidences and reiterating, once again, the prognostic utility of a minimally invasive procedure rather than classical approach...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29440696/the-fate-of-a-hapten-from-the-skin-to-modification-of-macrophage-migration-inhibitory-factor-mif-in-lymph-nodes
#8
Isabella Karlsson, Kristin Samuelsson, Carl Simonsson, Anna-Lena Stenfeldt, Ulrika Nilsson, Leopold L Ilag, Charlotte Jonsson, Ann-Therese Karlberg
Skin (contact) allergy, the most prevalent form of immunotoxicity in humans, is caused by low molecular weight chemicals (haptens) that penetrate stratum corneum and modify endogenous proteins. The fate of haptens after cutaneous absorption, especially what protein(s) they react with, is largely unknown. In this study the fluorescent hapten tetramethylrhodamine isothiocyanate (TRITC) was used to identify hapten-protein conjugates in the local lymph nodes after topical application, as they play a key role in activation of the adaptive immune system...
February 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29439302/pediatric-viral-myocarditis-a-review
#9
Teresa Frey, Nofil Arain
Pediatric myocarditis is a common pediatric illness most commonly secondary to a preceding viral infection. It is a leading cause of acquired heart failure, cardiomyopathy, and cardiac transplantation in pediatrics. Due to the variability in presentation, the diagnosis is often unrecognized until later in the disease course. It should be considered in the differential diagnosis of all children presenting with respiratory distress, since this is the most common presentation. Imagining modalities, such as cardiac magnetic resonance imaging have become a useful diagnostic tool in recent years; however, endomyocardial biopsy remains the gold standard diagnostic test...
January 2018: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/29438889/recent-progress-in-potential-anti-hepatitis-b-virus-agents-structural-and-pharmacological-perspectives
#10
Dejuan Sun, Lingjuan Zhu, Dahong Yao, Lixia Chen, Leilei Fu, Liang Ouyang
Hepatitis B virus (HBV) infections affect about 240 million patients worldwide and increase the risk of liver cirrhosis and hepatocellular carcinoma. It is estimated that about 686 thousand people died annually of liver damage resulted from HBV infections. At present, two classes of antiviral drugs have been approved by the Food and Drug Administration (FDA) for the treatment of hepatitis B, immunomodulators (interferon [IFN]-a and pegylated-interferon [PEG-IFN]-a) and nucleos(t)ide analogs (lamivudine, telbivudine, adefovir, tenofovir [TDF], and entecavir [ETV])...
February 5, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29438757/comparative-effectiveness-of-targeted-immunomodulators-for-the-treatment-of-moderate-to-severe-plaque-psoriasis-a-systematic-review-and-network-meta-analysis
#11
REVIEW
Anne M Loos, Shanshan Liu, Celia Segel, Daniel A Ollendorf, Steven D Pearson, Jeffrey A Linder
BACKGROUND: The comparative effectiveness of available targeted immunomodulators for moderate-to-severe psoriasis has not been evaluated. OBJECTIVE: To evaluate the comparative effectiveness of targeted immunomodulators for adults with moderate-to-severe plaque psoriasis. METHODS: Systematic literature review of placebo-controlled and head-to-head randomized trials of eight targeted immunomodulators that evaluated clinical benefits or harms...
February 10, 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29435968/-a-new-phenotype-of-infantile-onset-pompe-disease
#12
A Nascimento, E Villalobos-Pinto
INTRODUCTION: Infantile-onset Pompe disease is a kind of glycogenosis resulting from a deficit of the enzyme acid alpha-glucosidase. Before specific enzyme replacement therapy (ERT) became available, the classic form was fatal during the first two years of life. ERT increases survival and improves cardiac, respiratory and motor functioning. CASE REPORTS: Case 1: 2-month-old infant with predominantly axial hypotonia who required the use of a nasogastric tube as a result of difficulties in sucking and swallowing...
February 16, 2018: Revista de Neurologia
https://www.readbyqxmd.com/read/29434595/immunometabolism-and-pi-3-k-signaling-as-a-link-between-il-2-foxp3-expression-and-suppressor-function-in-regulatory-t-cells
#13
REVIEW
Martin Y Fan, Laurence A Turka
CD4 + Foxp3 + regulatory T cells (Tregs) are an essential component of immune homeostasis. Modulation of Treg function has been proposed as a means of treating autoimmune conditions and preventing rejection of organ transplants, although achieving this goal will require a detailed understanding of Treg signaling pathways. Signaling within Tregs is known to differ considerably from that observed in other T cell subsets. Of note, Tregs are the only cell type known to constitutively express CD25, the main ligand-binding subunit of the IL-2 receptor...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29434451/impaired-granulocyte-macrophage-colony-stimulating-factor-bioactivity-accelerates-surgical-recurrence-in-ileal-crohn-s-disease
#14
Grace Gathungu, Yuanhao Zhang, Xinyu Tian, Erin Bonkowski, Leahana Rowehl, Julia Krumsiek, Billy Nix, Claudia Chalk, Bruce Trapnell, Wei Zhu, Rodney Newberry, Lee Denson, Ellen Li
AIM: To examine the relationship between elevated granulocyte-macrophage colony-stimulating factor (GM-CSF) auto-antibodies (Ab) level and time to surgical recurrence after initial surgery for Crohn's disease (CD). METHODS: We reviewed 412 charts from a clinical database at tertiary academic hospital. Patients included in the study had ileal or ileocolonic CD and surgical resection of small bowel or ileocecal region for management of disease. Serum samples were analyzed for serological assays including GM-CSF cytokine, GM-CSF Ab, ASCA IgG and IgA, and genetic markers including SNPs rs2066843, rs2066844, rs2066845, rs2076756 and rs2066847 in NOD2, rs2241880 in ATG16L1, and rs13361189 in IRGM...
February 7, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29433111/-acute-flaccid-myelitis
#15
Ryutaro Kira
Acute flaccid myelitis (AFM) is a newly defined, rare, but clinically distinct syndrome of acute flaccid paralysis with spinal motor neuron involvement of unknown etiology. Clusters of AFM coincided with a nationwide outbreak of enterovirus D68 (EV-D68) in the United States during autumn to winter of 2014 and in Japan during the autumn of 2015. Although EV-D68 was detected in only 20% of the AFM patients, mainly from respiratory specimens without apparent viral detection from blood and cerebrospinal fluid (CSF) samples, strong temporal associations were noted...
February 2018: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29431690/ildr2-fc-is-a-novel-regulator-of-immune-homeostasis-and-inducer-of-antigen-specific-immune-tolerance
#16
Joseph R Podojil, Iris Hecht, Ming-Yi Chiang, Ilan Vaknin, Inbal Barbiro, Amit Novik, Eyal Neria, Galit Rotman, Stephen D Miller
ILDR2 is a member of the Ig superfamily, which is implicated in tricellular tight junctions, and has a putative role in pancreatic islet health and survival. We recently found a novel role for ILDR2 in delivering inhibitory signals to T cells. In this article, we show that short-term treatment with ILDR2-Fc results in long-term durable beneficial effects in the relapsing-remitting experimental autoimmune encephalomyelitis and NOD type 1 diabetes models. ILDR2-Fc also promotes transplant engraftment in a minor mismatch bone marrow transplantation model...
February 5, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29431214/human-mast-cells-and-basophils-how-are-they-similar-how-are-they-different
#17
REVIEW
Gilda Varricchi, Ulrike Raap, Felice Rivellese, Gianni Marone, Bernhard F Gibbs
Mast cells and basophils are key contributors to allergies and other inflammatory diseases since they are the most prominent source of histamine as well as numerous additional inflammatory mediators which drive inflammatory responses. However, a closer understanding of their precise roles in allergies and other pathological conditions has been marred by the considerable heterogeneity that these cells display, not only between mast cells and basophils themselves but also across different tissue locations and species...
March 2018: Immunological Reviews
https://www.readbyqxmd.com/read/29430502/immune-responses-to-neoadjuvant-chemotherapy-in-muscle-invasive-bladder-cancer
#18
REVIEW
Amir Sherif, Malin Winerdal, Ola Winqvist
The secondary effects of chemotherapy, with bone marrow depression and risk of leukopenia, has traditionally been considered being detrimental for the immune system. However, growing evidence suggests a main role for chemotherapy in antitumor immunomodulation. With reference to cisplatin, which is the basis of neoadjuvant chemotherapy in muscle invasive bladder cancer, four different aspects of immunomodulation has thus far been described; increased MHC class I expression, recruitment and proliferation of effector cells, enhancement of tumor-lytic activity of cytotoxic effectors and downregulation of immunosuppressive actors in the microenvironment...
January 20, 2018: Bladder Cancer
https://www.readbyqxmd.com/read/29430323/declining-use-of-combination-infliximab-and-immunomodulator-for-inflammatory-bowel-disease-in-the-community-setting
#19
Joshua C Berkowitz, Joanna Stein-Fishbein, Sundas Khan, Richard Furie, Keith S Sultan
AIM: To describe trends of combination therapy (CT) of infliximab (IFX) and immunomodulator (IMM) for inflammatory bowel disease (IBD) in the community setting. METHODS: A retrospective study was conducted of all IBD patients referred for IFX infusion to our community infusion center between 04/01/01 and 12/31/14. CT was defined as use of IFX with either azathioprine, 6-mercaptopurine, or methotrexate. We analyzed trends of CT usage overall, for Crohn's disease (CD) and ulcerative colitis (UC), and for the subgroups of induction patients...
February 6, 2018: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29429375/mechanical-fractionation-of-tissues-using-microsecond-long-hifu-pulses-on-a-clinical-mr-hifu-system
#20
Avinash Eranki, Navid Farr, Ari Partanen, Karun V Sharma, Christopher T Rossi, Avi Z Rosenberg, AeRang Kim, Matthew Oetgen, Haydar Celik, David Woods, Pavel S Yarmolenko, Peter C W Kim, Bradford J Wood
PURPOSE: High intensity focused ultrasound (HIFU) can non-invasively treat tumors with minimal or no damage to intervening tissues. While continuous-wave HIFU thermally ablates target tissue, the effect of hundreds of microsecond-long pulsed sonications is examined in this work. The objective of this study was to characterize sonication parameter-dependent thermomechanical bioeffects to provide the foundation for future preclinical studies and facilitate clinical translation. METHODS AND MATERIALS: Acoustic power, number of cycles/pulse, sonication time, and pulse repetition frequency (PRF) were varied on a clinical magnetic resonance imaging (MRI) - guided HIFU (MR-HIFU) system...
February 11, 2018: International Journal of Hyperthermia
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