Problem: Interleukin 35 is a relatively newly discovered cytokine that is produced by regulatory B cells (Bregs) and contributes to their suppressive function, which may contribute to fetal tolerance development and pregnancy maintenance. Therefore, the aim of this study was to determine the frequency of Bregs and expression of IL-35 and IL-10 in these cells in a normal and abortion-prone murine pregnancy model.
Methods Of Study: The frequency of Bregs and expression level of IL-35 and IL-10 in these cells were measured in peripheral blood, uterine draining lymph nodes, uterus, and decidua using flow cytometry. The analysis was performed on days 3 and 14 of pregnancy in normal mice (CBA/JxBALB/c) and abortion-prone (CBA/JxDBA/2J) murine pregnancy model.
Results: A decreased percentage of Breg cells expressing IL-35 on day 3 of pregnancy in the uterine draining lymph nodes and in peripheral blood in mice from the abortion group compared with the normal pregnancy group was observed. A similar decrease was also observed in the Breg cells population producing IL-10 in peripheral blood. In the uterus (3 dpc) and decidua (14 dpc), a lower percentage of CD19 IL-35 was also noted in the abortion-prone model.
Conclusion: We indicated that the early stages of abortion-prone pregnancy (3 dpc) in mice were characterized by diminished frequency of B cells producing IL-35 at both local and peripheral levels. These results and the observed lower level of IL-35 in women suffering from recurrent spontaneous abortion suggest that IL-35 may be involved in the maintenance of pregnancy.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1111/aji.13217 | DOI Listing |
Int Arch Allergy Immunol
November 2024
Department of Nephrology and Rheumatology, The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, China.
Introduction: Esculentoside A (EsA) is one of the main components of the traditional Chinese medicine Phytolacca esculenta. The possible mechanism of action of EsA in the treatment of lupus nephritis (LN) was explored by observing the effects of EsA on CD19+ IL-35+regulatory B (IL-35+Breg) cells.
Methods: Twenty-four MRL/lpr mice were randomly divided into control, EsA, and EsA+IL-12p35 antibody groups.
Int J Mol Sci
September 2024
Clinical Physiology Unit, Medical Simulation Centre, Medical University of Gdańsk, 80-210 Gdańsk, Poland.
Autoimmune thyroid disease (AIT) is the most frequently linked autoimmune condition to type 1 diabetes (T1D). The analysis of immune profiles could provide valuable insights into the study of these diseases. This knowledge could play a crucial role in understanding the relationship between immune profiles and microcirculation structures and functions.
View Article and Find Full Text PDFInt Rev Immunol
October 2024
Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Immunotherapy has emerged as a promising therapeutic approach for cancer treatment by harnessing the immune system to target cancer cells. However, the efficacy of immunotherapy is hindered by the tumor microenvironment (TME), comprising regulatory T cells (Tregs), macrophages, myeloid-derived suppressor cells (MDSCs), neutrophils, soluble factors (TGF-β, IL-35, IL-10), and hypoxia. These components interact with inhibitory receptors (IRs) on T cells, leading to alterations in T cell transcriptomes, epigenomes, and metabolism, ultimately resulting in T cell exhaustion and compromising the effectiveness of immunotherapy.
View Article and Find Full Text PDFJ Immunol
October 2024
Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA.
EBV-induced gene 3 (Ebi3) is a β subunit within the IL-12 cytokine family that canonically binds to α subunits p19, p28, or p35 to form the heterodimeric cytokines IL-39, IL-27, and IL-35, respectively. In the last decade, the binding partners for Ebi3 have continued to expand to include IL-6 and the other IL-12 family β subunit p40, revealing the possibility that Ebi3 may be able to bind to other cytokines and have distinct functions. We first explored this possibility utilizing an in vivo mouse model of regulatory T cell-restricted deletions of the subunits composing the cytokine IL-35, p35, and Ebi3, and we observed a differential impact on CD8+ T cell inhibitory receptor expression despite comparable reduction in tumor growth.
View Article and Find Full Text PDFInt J Mol Sci
August 2024
Department of Immunology and Allergology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania.
Atopic diseases, including atopic dermatitis (AD) and allergic asthma (AA), are characterized by complex immune responses involving various T cells subsets and their cytokine profiles. It is assumed that single nucleotide polymorphisms (SNPs) in the Vitamin D receptor () gene and the Vitamin D-binding protein () gene are related to the action of Vitamin D and, consequently, play a role in regulating the immune response. However, there is not enough data to unequivocally support the hypothesis about the relationship between T cells profile and or SNPs.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!