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Uterine Natural Killer Cells
Conclusions In both mouse and human, uNK cells are the most prominent immune cells that occupy the maternal-fetal interface. The uNK cells appear to engage and establish complex interactions with the surrounding tissue, which impact their function. As more cell subsets are identified within the heterogeneous uNK cell population, it is anticipated that their functional heterogeneity will extend beyond vascular modification, growth-promotion and memory generation. Author Contributions DS wrote the manuscript. LY provided the micrographs and WY edited the manuscript. Funding Work in the Yokoyama lab on uterine NK cells i...
Source: Frontiers in Immunology - April 30, 2019 Category: Allergy & Immunology Source Type: research

Hepatic Natural Killer Cells: Organ-Specific Sentinels of Liver Immune Homeostasis and Physiopathology
Joanna Mikulak1,2, Elena Bruni1,2, Ferdinando Oriolo1,2, Clara Di Vito1 and Domenico Mavilio1,2* 1Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy 2Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy The liver is considered a preferential tissue for NK cells residency. In humans, almost 50% of all intrahepatic lymphocytes are NK cells that are strongly imprinted in a liver-specific manner and show a broad spectrum of cellular heterogeneity. Hepatic NK (he-NK) cells play key roles in tuning liver immune response in b...
Source: Frontiers in Immunology - April 29, 2019 Category: Allergy & Immunology Source Type: research

Innate Lymphoid Cells: Expression of PD-1 and Other Checkpoints in Normal and Pathological Conditions
Conclusions and Future Perspectives It is now evident that NK/ILC family plays a pivotal role in the immune defenses. Recent studies in murine and human settings demonstrated that the expression of several inhibitory checkpoints, that may be detrimental in the tumor context, is not restricted to T lymphocytes, revealing an important, yet poorly appreciated, contribution of their expression on innate immune cells. Thus, in the recent years different immunotherapy approaches, based on the blockade of inhibitory NK cell receptors, have been developed in order to unleash NK cell cytotoxicity. This is particularly important in...
Source: Frontiers in Immunology - April 25, 2019 Category: Allergy & Immunology Source Type: research

Th2-TRMs Maintain Life-Long Allergic Memory in Experimental Asthma in Mice
This study was carried out in strict accordance with the guidelines for the care and use of laboratory animals of the Austrian Ministry of Science. The protocol was approved by the Committee on the Ethics of the Austrian Ministry of Science (Number: GZ: 66.009/0330-II/3b/2013). All painful procedures were performed under anesthesia, and all efforts were made to minimize suffering. Author Contributions BB designed and performed experiments, analyzed the samples and contributed to the manuscript preparation. SK designed and performed experiments, analyzed the samples and contributed to the manuscript preparation. LA perfor...
Source: Frontiers in Immunology - April 23, 2019 Category: Allergy & Immunology Source Type: research

Effects of Orally Ingested Arsenic on Respiratory Epithelial Permeability to Bacteria and Small Molecules in Mice
Conclusions: Peroral arsenic has little effect on local airway immune responses to bacteria but compromises respiratory epithelial barrier integrity, increasing systemic translocation of inhaled pathogens and small molecules. https://doi.org/10.1289/EHP1878 Received: 09 March 2017 Revised: 14 August 2017 Accepted: 16 August 2017 Published: 28 September 2017 Address correspondence to M.B. Fessler, National Institute of Environmental Health Sciences, 111 T.W. Alexander Dr., P.O. Box 12233, Maildrop D2-01, Research Triangle Park, NC 27709 USA. Telephone: (919) 541-3701. Email: fesslerm@niehs.nih.gov *Current address: UN...
Source: EHP Research - September 28, 2017 Category: Environmental Health Authors: Daniil Lyalko Tags: Research Source Type: research

Id: 132: lupus keratinocytes are primed by an autocrine type i interferon loop to robustly secrete il-6
Conclusions IL-6 is increased at the RNA and protein level within cutaneous lupus biopsies when compared to healthy control skin. Keratinocytes are a major producer of IL-6 in the skin and lupus keratinocytes have enhanced production of IL-6 in response to TLR ligands and UV radiation. Exposure to type I IFN can increase IL-6 production in keratinocytes. SLE-derived keratinocytes downregulate IL-6 production in the presence of tonic blockade of the type I IFN receptor. These data suggest that the epidermis, which is an important barrier for environmental insults, is primed for IL-6 production by autocrine type I IFN produc...
Source: Journal of Investigative Medicine - March 21, 2016 Category: Research Authors: Stannard, J., Reed, T., Kahlenberg, J., Myers, E., Lowe, L., Gudjonsson, J. Tags: Rheumatology/Immunology/Allergy Source Type: research