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https://www.readbyqxmd.com/read/28434074/adipose-derived-stem-cells-ameliorate-experimental-murine-colitis-via-tsp-1-dependent-activation-of-latent-tgf-%C3%AE
#1
Hiroshi Takeyama, Tsunekazu Mizushima, Mamoru Uemura, Naotsugu Haraguchi, Junichi Nishimura, Taishi Hata, Chu Matsuda, Ichiro Takemasa, Masakazu Ikenaga, Kohei Murata, Hirofumi Yamamoto, Yuichiro Doki, Masaki Mori
BACKGROUND: Adipose tissue-derived stem cells (ASCs) have been investigated as therapeutic tools for a variety of autoimmune diseases, including inflammatory diseases. However, the mechanisms underlying the immunomodulatory properties of ASCs are not well understood. Here, we investigated the mechanism of regulatory T cell (Treg) induction in ASC therapy in a murine model of inflammatory bowel disease. METHODS: Acute colitis was induced in mice using dextran sulfate sodium and ASCs administered intraperitoneally...
April 22, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28433992/the-aachen-minipig-phenotype-genotype-hematological-and-biochemical-characterization-and-comparison-to-the-g%C3%A3-ttingen-minipig
#2
Kerstin Pawlowsky, Lisa Ernst, Julia Steitz, Thaddäus Stopinski, Babette Kögel, Anna Henger, Reinhart Kluge, René Tolba
BACKGROUND: The pig is one of the most frequently used large animal models for biomedical research, especially in the field of translational research and surgical models. While standard livestock breeds are used in short-term and acute studies, minipig breeds are the preferred breeds in long-term and chronic studies due to their limited growth and body weight. OBJECTIVE: In consideration of the 3R principle (refinement, reduction, replacement) and the increasing demand, the aim of this study was to generate a new, robust, non-specific-pathogen-free minipig breed, the Aachen minipig...
April 22, 2017: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/28433952/what-chickens-might-tell-us-about-the-mhc-class-ii-system
#3
REVIEW
Aimée Parker, Jim Kaufman
Almost all knowledge about the structure and function of MHC class II molecules outside of mammals comes from work with chickens. Most of the genes implicated in the class II system are present in chickens, so it is likely that the machinery of antigen processing and peptide-loading is similar to mammals. However, there is only one isotype (lineage) of classical class II genes, with one monomorphic DR-like BLA gene and two polymorphic BLB genes, located near one DMA and two DMB genes. The DMB2 and BLB2 genes are widely expressed at high levels, whereas the DMB1 and BLB1 genes are only expressed at highest levels in spleen and intestine, suggesting the possibility of two class II systems in chickens...
April 20, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28433718/three-new-piscidins-from-orange-spotted-grouper-epinephelus-coioides-phylogeny-expression-and-functional-characterization
#4
Ze-Rui Zhuang, Xiao-Dong Yang, Xia-Zi Huang, Hui-Xian Gu, Han-Yin Wei, Yi-Jun He, Li Deng
The present study reports the identification, and characterization of three new putative piscidin paralogues, ecPis-2, ecPis-3 and ecPis-4, from orange-spotted grouper (Epinephelus coioides). The cDNA of the three piscidins with the 207, 216, and 231 nt open reading frame encoded respectively a 68-, 71-, and 76-amino acid preprotein consisting of the predicted signal peptide, and putative mature peptide and prodomain. The phylogenetic analysis indicated that multiple piscidin paralogues in one fish species are highly diversified, the analysis suggested that the piscidins should be a family belonging to the superfamily of ancient cationic, linear, and amphipathic host defence peptides widespread across invertebrate and vertebrate taxa comprising insect cecropins and ceratotoxins, and the amphibian dermaseptins...
April 19, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28433716/development-of-a-monoclonal-antibody-against-the-cd3%C3%AE%C2%B5-of-olive-flounder-paralichthys-olivaceus-and-its-application-in-evaluating-immune-response-related-to-cd3%C3%AE%C2%B5
#5
Jae Wook Jung, Jung Seok Lee, Young Rim Kim, Se Pyeong Im, Si Won Kim, Jassy Mary S Lazarte, Jaesung Kim, Kim D Thompson, Jong Pyo Suh, Tae Sung Jung
The T cell receptor (TCR) is the binding site of antigen and is responsible for specifically activating the adaptive immune response. CD3, an essential component of the CD3-TCR complex, is known to be composed of γδ and ε chains in teleost. However, there are few monoclonal antibodies (mAb) available to identify these molecules on T cells, so we aimed to produce a mAb against CD3ε to improve our understanding of T cell immune response in olive flounder (Paralichthys olivaceus). CD3ε recombinant protein was expressed in yeast, the expression of which was confirmed by SDS-PAGE, MALDI-TOF/TOF MS and Western blot analysis...
April 19, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28433543/phenformin-inhibits-myeloid-derived-suppressor-cells-and-enhances-the-anti-tumor-activity-of-pd-1-blockade-in-melanoma
#6
Sun Hye Kim, Man Li, Sebastian Trousil, Yaqing Zhang, Marina Pasca di Magliano, Kenneth D Swanson, Bin Zheng
Biguanides, such as the diabetes therapeutics metformin and phenformin, have demonstrated antitumor activity both in vitro and in vivo. However, their potential effects on the tumor microenvironment are largely unknown. Here we report that phenformin selectively inhibits granulocytic myeloid-derived suppressor cells (G-MDSCs) in spleens of tumor bearing mice and ex vivo. Phenformin induces production of reactive oxygen species in G-MDSC, whereas the antioxidant N-acetylcysteine attenuates the inhibitory effects of phenformin...
April 19, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28433529/antimicrobial-peptides-within-the-yellowtail-kingfish-seriola-lalandi
#7
Simon Muncaster, Kirsty Kraakman, Olivia Gibbons, Koen Mensink, Maria Forlenza, Gregory Jacobson, Steve Bird
A number of Seriola species are currently farmed or being investigated as future aquaculture species in countries around the world. However they face a number of issues and limitations which will need to be overcome to ensure future stability and growth, one of which are disease outbreaks. Despite this, very little has been done to understand the immune system of Seriola species and very few immune genes have been characterised. Antimicrobial peptides (AMP) are naturally occurring low molecular weight polypeptides that play a major role in an organism's immune system and act effectively as a first line of defence...
April 19, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28433483/functional-image-guided-stereotactic-body-radiation-therapy-planning-for-patients-with-hepatocellular-carcinoma
#8
Uranchimeg Tsegmed, Tomoki Kimura, Takeo Nakashima, Yuko Nakamura, Toru Higaki, Nobuki Imano, Yoshiko Doi, Masahiro Kenjo, Shuichi Ozawa, Yuji Murakami, Kazuo Awai, Yasushi Nagata
The aim of the current planning study is to evaluate the ability of gadoxetate disodium-enhanced magnetic resonance imaging (EOB-MRI)-guided stereotactic body radiation therapy (SBRT) planning by using intensity-modulated radiation therapy (IMRT) techniques in sparing the functional liver tissues during SBRT for hepatocellular carcinoma. In this study, 20 patients with hepatocellular carcinoma were enrolled. Functional liver tissues were defined according to quantitative liver-spleen contrast ratios ≥ 1...
April 19, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28432942/insights-into-the-diversity-of-nod-like-receptors-identification-and-expression-analysis-of-nlrc3-nlrc5-and-nlrx1-in-rainbow-trout
#9
Claudio A Álvarez, Felipe Ramírez-Cepeda, Paula Santana, Elisa Torres, Jimena Cortés, Fanny Guzmán, Paulina Schmitt, Luis Mercado
Nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) are efficient soluble intracellular sensors that activate defense mechanisms against pathogens. In teleost fish, the involvement of NLRs in the immune response is not well understood. However, recent work has evidenced the expression of different NLRs in response to some pathogen associated molecular patterns (PAMPs). In the present work, the cDNA sequence encoding three new NOD-like receptors were identified in Oncorhynchus mykiss, namely OmNLRC3, OmNLRC5 and OmNLRX1...
April 19, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28432872/human-effector-memory-t-helper-cells-engage-with-mouse-macrophages-and-cause-graft-versus-host-like-pathology-in-skin-of-humanized-mice-used-in-a-nonclinical-immunization-study
#10
Bala S Sundarasetty, Valery Volk, Sebastian J Theobald, Susanne Rittinghausen, Dirk Schaudien, Vanessa Neuhaus, Constanca Figueiredo, Andreas Schneider, Laura Gerasch, Adele Mucci, Thomas Moritz, Constantin von Kaisenberg, Loukia M Spineli, Katherina Sewald, Armin Braun, Henning Weigt, Arnold Ganser, Renata Stripecke
Humanized mice engrafted with human hematopoietic stem cells and developing functional human T-cell adaptive responses are in critical demand to test human-specific therapeutics. We previously showed that humanized mice immunized with long-lived induced-dendritic cells loaded with the pp65 viral antigen (iDCpp65) exhibited a faster development and maturation of T cells. Herein, we evaluated these effects in a long-term (36 weeks) nonclinical model using two stem cell donors to assess efficacy and safety. Relative to baseline, iDCpp65 immunization boosted the output of effector memory CD4(+) T cells in peripheral blood and lymph nodes...
April 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28432220/mir-155-promotes-flt3-itd-induced-myeloproliferative-disease-through-inhibition-of-the-interferon-response
#11
Jared A Wallace, Dominique A Kagele, Anna M Eiring, Carissa N Kim, Ruozhen Hu, Marah C Runtsch, Margaret Alexander, Thomas B Huffaker, Soh-Hyun Lee, Ami B Patel, Timothy L Mosbruger, Warren Voth, Dinesh S Rao, Rodney R Miles, June L Round, Michael W Deininger, Ryan M O'Connell
FLT3-ITD(+) AML accounts for approximately 25% of all AML cases, and is a subtype that carries a poor prognosis. miR-155 is specifically overexpressed in FLT3-ITD(+) AML compared to FLT3-WT AML, and is critical for the growth of FLT3-ITD(+) AML cells in vitro. However, miR-155's role in regulating FLT3-ITD-mediated disease in vivo remains unclear. In this study, we utilized a genetic mouse model to determine whether miR-155 influences the development of FLT3-ITD-induced myeloproliferative disease. Results indicate that miR-155 promotes FLT3-ITD-induced myeloid expansion in the bone marrow, spleen, and peripheral blood...
April 21, 2017: Blood
https://www.readbyqxmd.com/read/28432146/c1q-dependent-dendritic-cell-cross-presentation-of-in-vivo-formed-antigen-antibody-complexes
#12
Nataschja I Ho, Marcel G M Camps, Edwin F E de Haas, Leendert A Trouw, J Sjef Verbeek, Ferry Ossendorp
Dendritic cells (DCs) are specialized in Ag engulfment via a wide variety of uptake receptors on their cell surface. In the present study we investigated Ag uptake and presentation of in vivo-formed Ag-Ab complexes by i.v. injecting mice with Ag-specific Abs followed by the cognate Ag. We show by this natural Ab-mediated Ag targeting system that uptake by splenic APC subsets is severely hampered in mice lacking complement factor C1q (C1qa(-/-)). Moreover, no detectable Ag cross-presentation by CD8α(+) DCs from C1qa(-/-) mice was found...
April 21, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28431402/micrometastasis-of-endometriosis-to-distant-organs-in-a-murine-model
#13
Elham N Samani, Ramanaiah Mamillapalli, Fei Li, Levent Mutlu, Demetra Hufnagel, Graciela Krikun, Hugh S Taylor
Endometriosis is an inflammatory gynecological disorder among reproductive-aged women caused by the engraftment and proliferation of endometrial cells outside the uterus, most commonly in the pelvis. It is thought that the disease arises primarily from retrograde menstruation where cells from the endometrium travel through the fallopian tubes to the peritoneal cavity. However, migration of endometriosis-derived cells to distant organs outside of the peritoneal cavity have not been explored. In the present study, we developed and validated a mouse model of disseminated endometriosis using syngeneic DsRed endometrial tissue introduced into the peritoneum of immunocompetent mice...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431326/incidentally-detected-splenogonadal-fusion-in-a-laparoscopic-transabdominal-preperitoneal-hernia-repair-operation-a-case-report
#14
Yuichi Akama, Kimiyoshi Shimanuki, Shuji Asahi, Yohei Watanabe, Kazuhide Ko, Ryotaro Takano, Hodaka Amano, Takanori Kawaguchi, Eiji Uchida
INTRODUCTION: Splenogonadal fusion (SGF) is a rare congenital malformation in which the spleen is connected to the gonad. Few SGF cases have been reported in the English scientific literature, and we are unaware of any previous case reports of SGF with inguinal hernia by laparoscopic transabdominal preperitoneal hernia repair (TAPP). Here, we report a case of SGF that was incidentally detected during a TAPP procedure, with an uneventful postoperative course without complications. PRESENTATION OF CASE: A 76-year-old male presented with a 10-year history of left inguinal swelling...
April 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28431099/effect-of-cold-water-induced-stress-on-immune-response-pathology-and-fertility-in-mice-during-chlamydia-muridarum-genital-infection
#15
Tesfaye Belay, Anthony Woart, Vincent Graffeo
Genital infection by Chlamydia trachomatis (CT) is the most common bacterial sexually-transmitted disease worldwide. It causes serious reproductive health complications, including pelvic inflammatory disease and infertility. Stress is implicated as a risk factor for various infections; however, its effect on chlamydia genital infection is unknown. We previously showed that repeated exposure of mice to cold water results in increased severity of chlamydia genital infection. In the present study, cold water-induced stress resulted in: i) elevated levels of NE and EP in the spleen and genital tract of stressed mice; ii) elevated IL-1β, TNF-α, IL-6 and NO production in macrophage-rich peritoneal cells of mice; iii) supplement of NE in vitro exerts an immunosuppressive effect on splenic T cell production of cytokines; iv) decreased C...
April 18, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28430776/aminoazo-dye-protein-adduct-enhances-inhibitory-effect-on-digestibility-and-damages-to-gastro-duodenal-hepatic-axis
#16
Li-Yun Lin, Chiung-Chi Peng, Yeh Chen, Boa-Chan Huang, Chun Chao Chang, Robert Y Peng
4-Dimethylaminoazobenzene (DAB, methyl yellow, or butter yellow), a human carcinogen, has been banned for use in foods since 1988. In 2014, DAB adulteration in Tofu occurred in Taiwan. We hypothesize that DAB can form [DAB•SBP]adduct adduct with soybean protein (SBP) which could damage Gastro-Duodenal-Hepatic axis. Sprague-Dawley rats gavage fed [DAB•SBP]adduct adduct revealed severely reduced body weight and damaged duodenum, liver, hepatic mitochondria, and spleen. Hepatic levels of glutathione and ATP were severely reduced...
2017: PloS One
https://www.readbyqxmd.com/read/28430604/signal-transducing-adaptor-protein-2-promotes-generation-of-functional-long-term-memory-cd8-t-cells-by-preventing-terminal-effector-differentiation
#17
Daisuke Muraoka, Naohiro Seo, Tae Hayashi, Chisaki Hyuga-Amaike, Kana Okamori, Isao Tawara, Naozumi Harada, Hiroshi Shiku
Long-surviving memory CD8+ T cells generated by stimulation with appropriate tumor-associated antigens are the most aggressive and persistent tumoricidal effectors. In this event of memory CD8+ T cell development, the signal transducer and activator of transcription (STAT) proteins function as the crucial intracellular signaling molecules, but the regulatory mechanism of STATs in CD8+ T cells is not fully understood. In this study, we report for the first time, by using murine vaccination models, that signal-transducing adaptor protein-2 (STAP2) maintains the cytotoxicity of long-lived memory CD8+ T cells by controlling a STAT3/suppressor of cytokine signaling 3 (SOCS3) cascade...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429995/new-insights-into-the-role-of-dietary-spermine-on-inflammation-immune-function-and-related-signalling-molecules-in-the-thymus-and-spleen-of-piglets
#18
Wei Cao, Xianjian Wu, Gang Jia, Hua Zhao, Xiaoling Chen, Caimei Wu, Jiayong Tang, Jing Wang, Jingyi Cai, Guangmang Liu
This study aimed to determine the effects of dietary spermine supplementation on the inflammatory response and immune function of the thymus and spleen in piglets. Eighty suckling piglets were randomly assigned to receive adequate nutrients supplemented with spermine (0.4 mmol/kg body weight) or restricted nutrient intake supplemented with normal saline for 7 h or 3, 6 and 9 days in pairs. Regardless of treatment time, spermine supplementation decreased (p < 0.05, compared with the controls) the following: (1) tumour necrosis factor α (TNF-α), interleukin (IL)-1β, 2 and 6, and interferon (IFN)-γ levels in serum; (2) gene expression of cluster of differentiation 8 and integrin beta-2 in the thymus and spleen and the lymphocyte function-associated antigen 1 in the thymus; (3) mRNA levels of TNF-α, IL 1β, 2, 6, and 12, IFN-γ and inducible nitric oxide synthase in the thymus and spleen, as well as IL-8 in the spleen; and (4) eukaryotic IF4E-binding protein 1, Janus kinase 2, signal transducer and activator of transcription 3, and nuclear factor-kappa B P65 gene transcriptions in the thymus and spleen...
June 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28429751/preclinical-study-of-raav2-strail-pharmaceutical-efficacy-biodistribution-and-safety-in-animals
#19
Q Ru, W Li, X Wang, S Zhang, L Chen, Y Zhang, Y Ge, Y Zu, Y Liu, D Zheng
The recombinant sTRAIL has been in clinical trial for various human malignancies. However, the half-life time of sTRAIL is very short, which might be an important factor influencing its clinical efficacy for cancer therapy. We previously reported the recombinant adeno-associated virus (AAV)-encoding sTRAIL95-281-mediated sTRAIL expression in vivo up to 8 months and suppressed tumor growth markedly in mouse xenografts. In the present study, we further evaluated the clinical potency for cancer gene therapy and the safety in mouse and non-human primates...
April 21, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28429313/gradually-shrinking-intra-abdominal-desmoid-tumor-derived-from-the-stomach-in-a-young-boy-a-case-report
#20
Kazushi Miyata, Masahide Fukaya, Masato Nagino
BACKGROUND: Intra-abdominal desmoid tumors, particularly those derived from the stomach, are rare. Such tumors are associated with a history of familial adenomatous polyposis (FAP), trauma, or surgical procedures in general. In addition, spontaneous shrinking of an intra-abdominal desmoid tumor is rarer. And desmoid tumors most commonly arise during the fourth decade of life. CASE PRESENTATION: A 17-year-old boy with lower abdominal pain was diagnosed with a gastrointestinal stromal tumor (GIST) or a hematoma at a local hospital...
December 2017: Surgical Case Reports
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