Late Postpregnancy Modifications in the Subset of Peripheral Natural T Regulatory Cells in Healthy Women.

In this study, we investigate the population of Tregs and, in particular, the natural Tregs (nTregs) in healthy women divided into three groups according to the number of previous pregnancies, if any (Gr.1-one pregnancy, Gr.2-≥2 pregnancies, and Gr.0-no pregnancy). The overall analysis showed similar proportions in the entire Treg pool and nTregs (FoxP3+CD45RA+) in all the three groups (p > 0.05). However, the age-related trend of CD25+ nTregs was found to be different in parous and nonparous women. Analysis of phosphorylated ERK1/2, an important signaling molecule in T cell maintenance, showed a significantly higher percentage in CD25+ nTregs in the group of nonparous compared with parous women (p 
Source: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy - Category: Microbiology Tags: Monoclon Antib Immunodiagn Immunother Source Type: research

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Abstract Foxp3+ T regulatory cell (Tregs) are central in the pathobiology of recurrent spontaneous abortions (RSA). Signal transducer and activator of transcription (STAT) proteins instruct Treg differentiation and polarization, but the STAT signaling architecture of Tregs in RSA and its modifications by lymphocyte immunotherapy (LIT) are yet unknown. By using single-cell phospho-specific flow cytometry we show that the STAT signaling biosignature of Tregs in women with RSA was characterized by marked downregulation of the IFNα/pSTAT1&5, IL-6/pSTAT1&3 and IL-2/pSTAT5 signaling nodes compared to age-matched f...
Source: Clinical Immunology - Category: Allergy & Immunology Authors: Tags: Clin Immunol Source Type: research
AbstractBackgroundTNBC is an aggressive subtype of metastatic breast cancer. Eribulin has been shown to have activity in metastatic TNBC and has enhanced efficacy if TGF- β is downregulated. Additionally, down-regulating TGF-β in the tumor microenvironment may decrease tumor growth and increase responsiveness to checkpoint blockade. Bintrafusp alfa* (M7824) is an innovative first-in-class bifunctional fusion protein composed of the extracellular domain of the TGF-β RII receptor (a TGF-β “trap”) fused to a human IgG1 mAb blocking PD-L1. Therefore the combination of eribulin with bintrafusp al...
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research
ConclusionAs new data arise, revisions might soon be needed allowing AIT in the cases of patients treated with ACE inhibitors and beta-blockers, in elderly patients and in patients with concomitant autoimmune diseases and neoplasias in remission. The decision to prescribe AIT is always tailor-made, balancing risk vs benefit. Creating globally accepted guidelines would help Allergologists in their decision making.
Source: Clinical and Translational Allergy - Category: Allergy & Immunology Source Type: research
Hepatitis E virus (HEV) causes an estimated 3 million cases of acute symptomatic hepatitis annually, which may have a severe course, leading to approximately 70,000 HEV-related deaths per year.1 Pregnant women are at the highest risk of a fulminant course upon infection with HEV genotypes 1 and 2, which are spread as waterborne pathogens in low-income regions. In middle- and high-income regions, severe courses of acute hepatitis E are usually observed in elderly people, following infection with the zoonotic HEV genotypes 3 and 4 that are transmitted by meat and less frequently by blood products.
Source: Journal of Hepatology - Category: Gastroenterology Authors: Tags: Editorial Source Type: research
Publication date: Available online 30 July 2019Source: Best Practice &Research Clinical Obstetrics &GynaecologyAuthor(s): Howard CarpAbstractWhen immunomodulation is used on an unselected population with recurrent miscarriage (RM), there is no improvement the live birth rate. However, when the population is selected for a poor prognosis, or immune phenomena, immunotherapy has been shown to be effective. This review discusses four immunomodulatory agents, paternal leucocyte immunization, intravenous immunoglobulin (IVIG), intralipid and filgrastim. The presence of embryonic aneuploidy may confound the results of tre...
Source: Best Practice and Research Clinical Obstetrics and Gynaecology - Category: OBGYN Source Type: research
AbstractTumor immunotherapy using gene-modified T cells has already met with considerable success in the treatment of metastatic melanoma and B cell lymphoma. With improving patient prognoses, new questions arise. In particular, the long-term consequences of treatment among individuals of childbearing age could now be considered. Former patients can carry a cohort of transgenic memory T cells long after treatment has ceased and the effector T cell population has contracted. When patients become parents well after treatment is completed, expectant mothers may still pass transgenic T cells to their unborn children. Consequen...
Source: Journal for Immunotherapy of Cancer - Category: Cancer & Oncology Source Type: research
Discussion MDSCs violently emerge in pathological conditions in an attempt to limit potentially harmful immune and inflammatory responses. Mechanisms supporting their expansion and survival are deeply investigated in cancer, in the perspective to reactivate specific antitumor responses and prevent their contribution to disease evolution. These findings will likely contribute to improve the targeting of MDSCs in anticancer immunotherapies, either alone or in combination with immune checkpoint inhibitors. New evidence indicates that the expansion of myeloid cell differentiation in pathology is subject to fine-tuning, as its...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusions Toxoplasma gondii infection induces a strong innate and adaptive immune response. While the innate immunity is important for controlling the early stages of the infection (Yarovinsky, 2014), the adaptive immunity is critical for restricting the parasite replication during the later stages (Gazzinelli et al., 1992). Amongst the adaptive immune subsets, CD8 T cells are the primary effector cells while CD4 T cells play an essential helper role to maintain long-term immunity (Casciotti et al., 2002). Notwithstanding, a robust CD8 T cell immunity induced during acute phase of infection, does not result in the total...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
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 - Category: Allergy & Immunology Source Type: research
Eva Miko1,2*, Matyas Meggyes1,2, Katalin Doba1, Aliz Barakonyi1,2 and Laszlo Szereday1,2 1Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary 2Janos Szentagothai Research Centre, Pécs, Hungary Immune checkpoint molecules, like CTLA-4, TIM-3, PD-1, are negative regulators of immune responses to avoid immune injury. Checkpoint regulators are thought to actively participate in the immune defense of infections, prevention of autoimmunity, transplantation, and tumor immune evasion. Maternal-fetal immunotolerance represents a real immunological chal...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
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