Mast cells play a critical role in immunoglobulin E (IgE)-mediated allergic diseases, and the degranulation of mast cells is important in the pathogenesis of these diseases. A disturbance of the intestinal microflora, especially of endogenous lactic acid bacteria, might be a contributing factor for IgE-mediated allergic diseases. Additional knowledge regarding the interaction of human intestinal with mast cells is still necessary. Twenty-three strains of , including commercial and reference strains and strains from the human intestine, were tested for their ability to regulate degranulation of cells from rat basophilic leukemia RBL-2H3 cells (RBL-2H3) in vitro based on a β-hexosaminidase release assay. Each of the tested characteristically suppressed IgE-mediated degranulation of RBL-2H3 cells, and GG showed the strongest inhibitory effect on the cells. Furthermore, the bacteria isolated from the human intestine significantly suppressed degranulation of RBL-2H3 cellsin comparison with the reference strains. These results suggest that , particularly those from the human intestine, can affect the activation of mast cells in a strain-dependent manner. Further study should be conducted to analyse the understanding mechanism.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192523 | PMC |
| http://dx.doi.org/10.3390/microorganisms4040040 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Topical application of the ethanol extract and the hydroethanolic fraction of ripe Solanum lycocarpum A. St. Hil. fruit improves the healing of excisional wounds.
Acta Cir Bras
January 2025
Universidade Federal de São João del-Rei - Laboratory of Experimental Pathology - São João del-Rei (MG) - Brazil.
Purpose: To evaluate the effect of the topical application of the ethanol extract (EESL) and the hydroethanolic fraction (HFSL) of ripe Solanum lycocarpum fruit on the healing of experimentally-induced wounds in mice.
Methods: The EESL and HFSL obtained from ripe fruit of the species S. lycocarpum were obtained by percolation with ethanol.
Sex hormones and allergies: exploring the gender differences in immune responses.
Front Allergy
January 2025
Research Institute of Biomedical Sciences, University Center of Health Sciences, University of Guadalajara, Guadalajara, Mexico.
Allergies are closely associated with sex-related hormonal variations that influence immune function, leading to distinct symptom profiles. Similar sex-based differences are observed in other immune disorders, such as autoimmune diseases. In allergies, women exhibit a higher prevalence of atopic conditions, such as allergic asthma and eczema, in comparison to men.
View Article and Find Full Text PDFSingle-cell transcriptomics reveals the heterogeneity and function of mast cells in human ccRCC.
Front Immunol
January 2025
Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
Introduction: The role of mast cells (MCs) in clear cell renal carcinoma (ccRCC) is unclear, and comprehensive single-cell studies of ccRCC MCs have not yet been performed.
Methods: To investigate the heterogeneity and effects of MCs in ccRCC, we studied single-cell transcriptomes from four ccRCC patients, integrating both single-cell sequencing and bulk tissue sequencing data from online sequencing databases, followed by validation via spatial transcriptomics and multiplex immunohistochemistry (mIHC).
Results: We identified four MC signature genes (TPSB2, TPSAB1, CPA3, and HPGDS).
Current utilization trend of immortalized mast cell lines in allergy research: a systematic review.
Immunol Res
January 2025
School of Science, Monash University Malaysia, Jalan Lagoon SelatanSubang Jaya, 47500, Bandar Sunway, Selangor, Malaysia.
Today, in the modern world, allergic diseases, also described as atopic allergies, are classified as a type of multifactorial disorder due to the complex interplay between genetics, environment, and socioeconomic factors that influence the disease's manifestation, severity, and one's predisposition to allergic diseases. It is undeniable that many reported studies have pointed out that the mast cell is one of the leading key players involved in triggering an allergic reaction. To improve our understanding of the molecular and cellular mechanisms underlying allergy, various mast cell lines have been employed in vitro to study the pathogenesis of allergic diseases for the past decades.
View Article and Find Full Text PDFPhysiochemical and functional evaluation of the first-in-class anti-cancer IgE antibody drug, MOv18, through process development and good manufacturing practice production.
MAbs
December 2025
St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, Guy's Hospital, King's College London, London, UK.
Antibodies used for cancer therapy are monoclonal IgGs, but tumor-targeting IgE antibodies have shown enhanced effector cell potency against cancer in preclinical models. Research-grade recombinant IgE antibodies have been generated and studied for several decades. The recent Phase 1 clinical trial of the first-in-class MOv18 IgE, however, necessitated the inaugural process development and scaled manufacture of a recombinant IgE to clinical quality standards.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!