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TSLP, IL-33, and IL-25: not just for allergy and helminth infection
The release of cytokines from epithelial and stromal cells is critical for the initiation and maintenance of tissue immunity. Three such cytokines, TSLP, IL-33, and IL-25, are important regulators of type 2 immune responses triggered by parasitic worms and allergens. In particular, these cytokines activate group 2 innate lymphoid cells (ILC2s), Th2 cells, and myeloid cells that drive hallmarks of type 2 immunity. However, emerging data indicates that these tissue-associated cytokines are not only involved in canonical type 2 responses, but are also important in the context of viral infections, cancer, and even homeostasis.
Source: Journal of Allergy and Clinical Immunology - July 18, 2022 Category: Allergy & Immunology Authors: Alison G. Stanbery, Shuchi Smita, Jakob von Moltke, Elia D. Tait Wojno, Steven F. Ziegler Source Type: research

Human Gut-Associated Natural Killer Cells in Health and Disease
Alessandro Poggi1*, Roberto Benelli2, Roberta Venè1, Delfina Costa1, Nicoletta Ferrari1, Francesca Tosetti1 and Maria Raffaella Zocchi3 1Molecular Oncology and Angiogenesis Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy 2Immunology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy 3Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy It is well established that natural killer (NK) cells are involved in both innate and adaptive immunity. Indeed, they can recognize molecules induced at the cell surface by stress signals...
Source: Frontiers in Immunology - May 2, 2019 Category: Allergy & Immunology Source Type: research

Dysbiosis of the Gut Microbiome in Lung Cancer
In conclusion, compared to previous analyses of the relationship between LC and the lung microbiome, this is the first study of LC in connection with the gut microbiome (Hosgood et al., 2014; Kosikowska et al., 2016). Our findings support the hypothesis of LC-specific microbiota. We suggest that the reduced levels of Actinobacteria sp. and Bifidobacterium sp. and elevated levels of Enterococcus sp. are associated with LC. At the same time, we have further revealed that the damage of the normal function of the gut microbiome is associated with the progression of LC. the progress of LC. We hope that the results herein can pr...
Source: Frontiers in cellular and infection microbiology - April 17, 2019 Category: Microbiology Source Type: research

From “Serum Sickness” to “Xenosialitis”: Past, Present, and Future Significance of the Non-human Sialic Acid Neu5Gc
Conclusions and Perspectives In this review, we have discussed important milestones from the early description of “Serum-sickness” as being due to antibodies directed against Neu5Gc epitopes all the way to the present-day therapeutic implications of these antibodies in cancer therapy. Some of these milestones have been represented in a concise timeline (Figure 6). While the “Xenosialitis” hypothesis is well-supported in the human-like mouse models, it has yet to be conclusively proven in humans. It remains to be seen if “Xenosialitis” plays a role in other uniquely-human dis...
Source: Frontiers in Immunology - April 16, 2019 Category: Allergy & Immunology Source Type: research

Autophagy Limits Inflammasome During Chlamydia pneumoniae Infection
In this study we found blocking autophagy led to increased CP growth in both macrophages and mouse embryonic fibroblasts. In vivo, loss of the autophagy elongation component ATG16L1 specifically in myeloid cells led to increased mortality in response to CP infection, characterized by greater numbers of neutrophils and dendritic cells, but no change in the CP burden in the lungs. This was accompanied by an increase in inflammasome-active macrophages and IL-1β production. While induction of autophagy in macrophages led to reduced CP growth in vitro, in vivo treatment with rapamycin led to increased mortality of infec...
Source: Frontiers in Immunology - April 11, 2019 Category: Allergy & Immunology Source Type: research

A Novel Human Microbe-Disease Association Prediction Method Based on the Bidirectional Weighted Network
Conclusion Human microbiome is normal flora for humans, which has been proved to be of symbiotic relationship with humans and harmless to humans. If the microbes that breed in the human body become “unhealthy,” it will definitely affect the host's physical condition. People are continuing to explore the pathologic relationship between microorganisms and the human body through high-throughput sequencing technologies and analysis systems. However, it is a pity that their pathogenesis cannot be fully understood as yet. Considering that relying only on conventional experimental methods is time-consumin...
Source: Frontiers in Microbiology - April 8, 2019 Category: Microbiology Source Type: research

BET Bromodomain Inhibitor iBET151 Impedes Human ILC2 Activation and Prevents Experimental Allergic Lung Inflammation
This study was supported by grants from GSK and the UK Medical Research Council (U105178805). Conflict of Interest Statement AM has grant funding from GSK and AstraZeneca/MedImmune. MB, DJ, AP, DT, and AvO are employees of GSK. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Acknowledgments We are grateful to the Ares staff, genotyping facility, and flow cytometry core for their technical assistance. We thank Jen Walker for advice on the manuscript. Supplementary Material The Supplem...
Source: Frontiers in Immunology - April 8, 2019 Category: Allergy & Immunology Source Type: research

A rare and unusual cause of mammographic calcification in the breast
Discussion Answer: C Histologically, there are focal collections of dilated ducts and microcysts lined by vacuolated epithelium showing lactational change. Many rounded concentric calcifications of various sizes are seen within the ductal lumina. These show characteristic appearances of Liesegang rings. In some ducts, the rings surround amorphous material with histologically identifiable calcific deposits. A mild chronic inflammatory infiltrate is seen in-between ducts. Liesegang rings are spherical, ring-like structures that show a characteristic appearance of concentric laminations...
Source: Journal of Clinical Pathology - December 13, 2016 Category: Pathology Authors: Robinson, A., Shaaban, A. M. Tags: Immunology (including allergy), Breast cancer, Inflammation, Clinical diagnostic tests Virtual case of the month Source Type: research