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https://www.readbyqxmd.com/read/29783968/investigating-porcine-parvoviruses-genogroup-2-infection-using-in-situ-polymerase-chain-reaction
#1
Dinko Novosel, Daniel Cadar, Tamás Tuboly, Andreja Jungic, Tomasz Stadejek, Tahar Ait-Ali, Attila Cságola
BACKGROUND: Porcine parvovirus 2 (PPV2) was detected in swine serum without showing any relationship with disease. The emergence of the virus seemed to be a unique event until other genetically highly similar parvoviruses were identified in China and, later in 2012, the presence of the virus was also described in Europe. PPV2 is widely distributed in pig populations where it is suspected to be involved in respiratory conditions, based on its frequent detection in lung samples. In order to investigate the potential pathogenic involvement of PPV2, 60 dead pigs were examined from two farms...
May 21, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29768502/interferon-lambda-is-required-for-interferon-gamma-expressing-nk-cell-responses-but-does-not-afford-antiviral-protection-during-acute-and-persistent-murine-cytomegalovirus-infection
#2
Silvia Gimeno Brias, Morgan Marsden, Jessica Forbester, Mathew Clement, Cordelia Brandt, Katherine Harcourt, Leanne Kane, Lucy Chapman, Simon Clare, Ian R Humphreys
Interferon lambda (IFNλ) is a group of cytokines that belong to the IL-10 family. They exhibit antiviral activities against certain viruses during infection of the liver and mucosal tissues. Here we report that IFNλ restricts in vitro replication of the β-herpesvirus murine cytomegalovirus (mCMV). However, IFNλR1-deficient (Ifnλr1-/-) mice were not preferentially susceptible to mCMV infection in vivo during acute infection after systemic or mucosal challenge, or during virus persistence in the mucosa. Instead, our studies revealed that IFNλ influences NK cell responses during mCMV infection...
2018: PloS One
https://www.readbyqxmd.com/read/29764519/plasmodium-yoelii-infection-inhibits-murine-leukaemia-wehi-3-cell-proliferation-in-vivo-by-promoting-immune-responses
#3
Zhen-Zhen Tong, Zheng-Ming Fang, Qi Zhang, Yun Zhan, Yue Zhang, Wan-Fang Jiang, Xiao Hou, Yong-Long Li, Ting Wang
BACKGROUND: Leukaemia is a malignant leukocyte disorder with a high fatality rate, and current treatments for this disease are unsatisfactory. Therefore, new therapeutic strategies for leukaemia must be developed. Malaria parasite infection has been shown to be effective at combating certain neoplasms in animal experiments. This study is to demonstrate the anti-leukaemia activity of malaria parasite Plasmodium yoelii (P. yoelii) infection,. METHODS: In this study, the proportion of CD3, CD19, CD11b and Mac-3 cells was analysed by flow cytometry; the levels of IFN-γ and TNF-α in individual serum samples were measured by enzyme-linked immunosorbent assay, and the phagocytic activity of macrophages and natural killer (NK) cell activity were measured by flow cytometry...
May 16, 2018: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29760540/ambiguous-roles-of-innate-lymphoid-cells-in-chronic-development-of-liver-diseases
#4
REVIEW
Yue Shen, Jing Li, Si-Qi Wang, Wei Jiang
Innate lymphoid cells (ILCs) are defined as a distinct arm of innate immunity. According to their profile of secreted cytokines and lineage-specific transcriptional factors, ILCs can be categorized into the following three groups: group 1 ILCs (including natural killer (NK) cells and ILC1s) are dependent on T-bet and can produce interferon-γ; group 2 ILCs (ILC2s) are dependent on GATA3 and can produce type 2 cytokines, including interleukin (IL)-5 and IL-13; and, group 3 ILCs (including lymphoid tissue-like cells and ILC3s) are dependent on RORγt and can produce IL-22 and IL-17...
May 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29743020/ifi16-is-involved-in-hbv-associated-acute-on-chronic-liver-failure-inflammation
#5
Xiuqing Pang, Xinhua Li, Zhishuo Mo, Jing Huang, Hong Deng, Ziying Lei, Xingrong Zheng, Zhiying Feng, Dongying Xie, Zhiliang Gao
BACKGROUND: Hepatitis B virus (HBV) is a hepatotropic DNA virus, and its DNA may be a potent inflammatory molecule. Interferon-inducible protein 16 (IFI16), a newly discovered DNA sensor, plays an important role in the process of inflammation in viral infections. Our study sought to identify a correlation between IFI16 expression and inflammation in patients with chronic hepatitis B (CHB) and HBV-associated acute-on-chronic liver failure (HBV-ACLF). METHODS: We performed flow cytometry to measure IFI16 levels in peripheral blood mononuclear cells (PBMC) and used immunohistochemistry and western blotting to measure IFI16 protein levels in liver tissues...
May 9, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29740437/targeting-and-therapy-of-glioblastoma-in-a-mouse-model-using-exosomes-derived-from-natural-killer-cells
#6
Liya Zhu, Ji Min Oh, Prakash Gangadaran, Senthilkumar Kalimuthu, Se Hwan Baek, Shin Young Jeong, Sang-Woo Lee, Jaetae Lee, Byeong-Cheol Ahn
Objective: Glioblastoma is a highly aggressive primary brain tumor that is resistant to radiotherapy and chemotherapy. Natural killer (NK) cells have been used to treat incurable cancers. Recent studies have investigated the effectiveness of NK-cell-derived exosomes (NK-Exo) for treating incurable cancers such as melanoma, leukemia, and neuroblastoma; however, NK-Exo have not been used to treat glioblastoma. In the present study, we investigated the antitumor effects of NK-Exo against aggressive glioblastoma both in vitro and in vivo and determined the tumor-targeting ability of NK-Exo by performing fluorescence imaging...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29735884/polysaccharides-extracted-from-rhizoma-pleionis-have-antitumor-properties-in-vitro-and-in-an-h22-mouse-hepatoma-ascites-model-in-vivo
#7
Yukun Fang, Anhong Ning, Sha Li, Shaozheng Zhou, Lei Liu, Thomson Patrick Joseph, Mintao Zhong, Jilong Jiao, Wei Zhang, Yonghui Shi, Meishan Zhang, Min Huang
Malignant ascites is a highly severe and intractable complication of advanced or recurrent malignant tumors that is often immunotherapy-resistant. Rhizoma Pleionis is widely used in traditional medicine as an antimicrobial and anticancer agent, but its effectiveness in treating malignant ascites is unclear. In the current study, we investigated the effect of polysaccharides isolated from Rhizoma Pleionis (PRP) on murine hepatocarcinoma H22 cells in an ascites model. We have found that the main components of PRP, that presented a relative molecular weight of 383...
May 7, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29728855/influence-of-moringa-oleifera-extract-vitamin-c-and-sodium-bicarbonate-on-heat-stress-induced-hsp70-expression-and-cellular-immune-response-in-rabbits
#8
Mahmoud Abdel-Latif, Thabet Sakran, Yasser K Badawi, Doaa S Abdel-Hady
The current study aimed to test the effect of Moringa oleifera extract (MOE), vitamin (Vit) C, and sodium bicarbonate (NaHCO3 ) on heat stress (HS)-induced alterations in rabbits. Five groups of rabbits were designed as control, HS, HS + MOE, HS + Vit C, and HS + NaHCO3 . HS groups were exposed to high temperatures, while treatments were given in drinking water for 6 weeks. Levels of blood cortisol, leptin, IFN-γ, TNF-α, and IL-10 were assayed using ELISA, while adrenaline was assayed calorimetrically...
May 4, 2018: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29725428/ultrasound-guided-radiofrequency-ablation-enhances-natural-killer-mediated-antitumor-immunity-against-liver-cancer
#9
Zelai Mo, Hailan Lu, Shaowei Mo, Xiangmin Fu, Shunwu Chang, Jie Yue
For patients with liver cancer who are not sufficiently fit for surgical resection, radiofrequency ablation (RFA) is an effective and low risk treatment modality; however, the mechanism underlying this procedure is not fully understood. In the present study, a series of experiments were conducted, which demonstrated that RFA therapy stimulates innate antitumor immunity via directly enhancing natural killer (NK) cell cytotoxicity, thus achieving a favorable outcome for patients with liver tumors. It was determined that the percentage of NK cells within the peripheral blood of the rabbits in the RFA treatment groups were significantly higher, compared with the control groups...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29721386/in-situ-delivery-of-allogeneic-natural-killer-cell-nk-combined-with-cetuximab-in-liver-metastases-of-gastrointestinal-carcinoma-a-phase-i-clinical-trial
#10
O Adotevi, Y Godet, J Galaine, Z Lakkis, I Idirene, J M Certoux, M Jary, R Loyon, C Laheurte, S Kim, A Dormoy, F Pouthier, C Barisien, F Fein, P Tiberghien, X Pivot, S Valmary-Degano, C Ferrand, P Morel, E Delabrousse, C Borg
Despite successful introduction of NK-based cellular therapy in the treatment of myeloid leukemia, the potential use of NK alloreactivity in solid malignancies is still elusive. We performed a phase I clinical trial to assess the safety and efficacy of in situ delivery of allogeneic NK cells combined with cetuximab in liver metastasis of gastrointestinal origin. The conditioning chemotherapy was administrated before the allogeneic NK cells injection via hepatic artery. Three escalating doses were tested (3...
2018: Oncoimmunology
https://www.readbyqxmd.com/read/29710425/systemic-inflammation-and-immune-cell-phenotypes-are-associated-with-neuro-psychiatric-symptoms-in-patients-with-chronic-inflammatory-liver-diseases
#11
Amare Aregay, Meike Dirks, Verena Schlaphoff, Solomon Owusu Sekyere, Kim Haag, Christine Susanne Falk, Julia Hengst, Birgit Bremer, Ramona Schuppner, Michael P Manns, Henning Pflugrad, Markus Cornberg, Heiner Wedemeyer, Karin Weissenborn
BACKGROUND AND AIMS: Chronic inflammatory liver diseases are frequently associated with neuropsychiatric and cognitive dysfunctions. We hypothesized that symptomatic patients may show altered levels of soluble inflammatory mediators (SIMs) as well as changes in immune cell phenotypes. METHODS: A comprehensive immune-phenotyping including investigation of 50 SIMs as well as ex-vivo phenotypes of NK-cells, CD3+, CD4+, CD8+ and regulatory T cells in 40 patients with viral and autoimmune chronic liver diseases was performed...
April 30, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29708080/immunohistochemical-observation-of-local-inflammatory-cell-infiltration-in-the-host-tissue-reaction-site-of-human-hydatid-cysts
#12
R Jafari, B Sanei, A Baradaran, M Kolahdouzan, B Bagherpour, H Yousofi Darani
The aim of this study was to evaluate the pattern of local immune cell infiltration in human cystic echinococcosis (CE) by identifying the subtypes of immune cells using immunohistochemistry (IHC). Fifty surgically removed hydatid cyst samples and surrounding tissues were collected from patients referred to Al-Zahra Hospital, Isfahan, Iran. IHC was performed on the surrounding host tissue of hydatid cysts using anti-human CD3, CD19, CD8, CD4, CD68, CD56, Ki-67 and Foxp3 (forkhead box P3) antibodies. The results were then compared to hepatocellular carcinoma and chronic hepatitis...
April 30, 2018: Journal of Helminthology
https://www.readbyqxmd.com/read/29704252/baseline-intrahepatic-and-peripheral-innate-immunity-are-associated-with-hepatitis-c-virus-clearance-during-daa-therapy
#13
Hawwa Alao, Maggie Cam, Chithra Keembiyehetty, Fang Zhang, Elisavet Serti, Daniel Suarez, Heiyoung Park, Nicolaas H Fourie, Elizabeth C Wright, Wendy A Henderson, Qisheng Li, T Jake Liang, Barbara Rehermann, Marc G Ghany
OBJECTIVE: Hepatitis C virus (HCV) infection induces interferon-stimulated genes (ISGs) and downstream innate immune responses. This study investigated whether baseline and on-treatment differences in these responses predict response versus virological breakthrough during therapy with direct-acting antivirals (DAA). METHODS: Thirteen HCV genotype 1b-infected patients who had previously failed a course of peginterferon/ribavirin were re-treated with asunaprevir/daclatasvir for 24 weeks...
April 27, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29695555/laminarin-promotes-immune-responses-and-reduces-lactate-dehydrogenase-but-increases-glutamic-pyruvic-transaminase-in-normal-mice-in-vivo
#14
Yung-Luen Shih, Shu-Ching Hsueh, Yung-Liang Chen, Jiann-Shang Chou, Hsueh-Yu Chung, Ko-Lin Liu, Herng-Woei Jair, Ying-Ying Chuang, Hsu-Feng Lu, Jia-You Liu, Jing-Gung Chung
BACKGROUND/AIM: Laminarin, a typical component of fungal cell walls, has been shown to induce immune responses in both adult and larval locusts. We investigated the effects of laminarin on immune response and glutamic oxaloacetic transaminase (GOT), glutamic pyruvic transaminase (GPT) and lactate dehydrogenase (LDH) levels in normal mice. MATERIALS AND METHODS: Thirty-six normal BALB/c mice were randomly divided into four groups and treatments were provided by gavage...
May 2018: In Vivo
https://www.readbyqxmd.com/read/29692250/critical-role-of-dipeptidyl-peptidase-iv-a-therapeutic-target-for-cancer-diabetes
#15
Priyankar Paira, S K Ashok Kumar, Sourav De, Subhasis Banerjee
Dipeptidyl Peptidase is one of the novel targets for antidiabetic and anticancer drugs. The dipeptidyl amminopeptidase IV, expressed in mammalian, releases X-Pro/Ala dipeptides from the N-terminus of peptides. It is responsible for the degradation of the incretin hormones which regulate blood glucose level. At present several DPP-IV inhibitors are approved for type-2 diabetes mellitus. These enzymes are also expressed in dimeric form on the surface of different cells (mature thymocytes, activated T cells, B cells, NK cells, macrophages, renal, prostate, liver and small intestinal epithelium, biliary canaliculae, and splenic sinus lining cells)...
April 22, 2018: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/29675689/natural-killer-cells-in-liver-diseases
#16
REVIEW
Meijuan Zheng, Haoyu Sun, Zhigang Tian
The liver has been characterized as a frontline lymphoid organ with complex immunological features such as liver immunity and liver tolerance. Liver tolerance plays an important role in liver diseases including acute inflammation, chronic infection, autoimmune disease, and tumors. The liver contains a large proportion of natural killer (NK) cells, which exhibit heterogeneity in phenotypic and functional characteristics. NK cell activation, well known for its role in the immune surveillance against tumor and pathogen-infected cells, depends on the balance between numerous activating and inhibitory signals...
April 19, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29670256/deviations-of-the-immune-cell-landscape-between-healthy-liver-and-hepatocellular-carcinoma
#17
Nataliya Rohr-Udilova, Florian Klinglmüller, Rolf Schulte-Hermann, Judith Stift, Merima Herac, Martina Salzmann, Francesca Finotello, Gerald Timelthaler, Georg Oberhuber, Matthias Pinter, Thomas Reiberger, Erika Jensen-Jarolim, Robert Eferl, Michael Trauner
Tumor-infiltrating immune cells are highly relevant for prognosis and identification of immunotherapy targets in hepatocellular carcinoma (HCC). The recently developed CIBERSORT method allows immune cell profiling by deconvolution of gene expression microarray data. By applying CIBERSORT, we assessed the relative proportions of immune cells in 41 healthy human livers, 305 HCC samples and 82 HCC adjacent tissues. The obtained immune cell profiles provided enumeration and activation status of 22 immune cell subtypes...
April 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29667374/hepatocellular-carcinoma-prospects-for-nk-cell-immunotherapy
#18
REVIEW
N Kumar, S I Khakoo
Liver disease is a growing cause of death in the UK and the incidence of hepatocellular carcinoma (HCC) is rising (http://www.cancerresearchuk.org/). The combination of an immunosuppressive environment within the liver and suboptimal host anti-tumour immune responses may account for the poor survival outcome of HCC. Understanding how tumours evade immune recognition coupled with new insights into the unique immunological environment within the liver will be critical to developing liver-specific immunotherapies...
April 17, 2018: HLA
https://www.readbyqxmd.com/read/29661825/nkp46-calibrates-tumoricidal-potential-of-type-1-innate-lymphocytes-by-regulating-trail-expression
#19
Gleb Turchinovich, Stefan Ganter, Anne Bärenwaldt, Daniela Finke
NK cells are a subset of group 1 innate lymphocytes that recognize and eliminate virus-infected and transformed cells. During the course of their development, NK cells acquire a repertoire of activating and inhibitory receptors, which ultimately define their reactivity against target cells. The array of receptors and their specificity during early developmental stages will control and imprint functional properties of NK cells, a process known as "NK cell education." Innate lymphoid cells (ILCs) are a diverse group of lymphocytes, which, like NK cells, do not rely on somatically rearranged Ag receptors for recognition...
April 16, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29643992/description-of-organ-specific-phenotype-and-functional-characteristics-of-tissue-resident-lymphocytes-from-liver-transplantation-donor-and-research-on-immune-tolerance-mechanism-of-liver
#20
Yunpeng Shi, Ping Zhang, Guangyi Wang, Xingkai Liu, Xiaodong Sun, Xin Zhang, Haijun Li, Jun Qi, Lei Ding, Ting Li, Ruoyan Zhang, Yuguo Chen, Jianpeng Zhou, Guoyue Lv, Zhengkun Tu
Aim: Prior to transplantation, Donation after Cardiac Death (DCD) liver transplantation livers are perfused with preservation solution. Therefore, this provides an abundant source of human liver lymphocytes, as well as mesenteric lymph node and spleen for the study of lymphocyte subset diversity in the peripheral blood, lymph node, spleen and liver. Methods: Lymphocyte subsets were isolated and purified from peripheral blood, lymph node, spleen and liver perfusion, the phenotypic and functional analysis of the tissue resident lymphocyte were performed by flow cytometry...
March 20, 2018: Oncotarget
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