Journal
IRANIAN JOURNAL OF IMMUNOLOGY
Volume 20, Issue 1, Pages 26-35Publisher
SHIRAZ INST CANCER RES
DOI: 10.22034/iji.2023.91783.2131.
Keywords
Immature dendritic cell; Lactobacillus delbrueckii; Lactobacillus rhamnosus; Probiotics; Tolerogenic
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The immunomodulatory effect of Lactobacillus rhamnosus and Lactobacillus delbrueckii on the differentiation and maturation of myeloid dendritic cells was evaluated. The probiotic-treated dendritic cells exhibited significant immunomodulatory properties, indicating their potential for immune response regulation.
Background: Dendritic cells, (DCs) as one of the important immune cell populations, are responsible for the initiation, development, and control of acquired immune responses. Myeloid dendritic cells can be used as a vaccine for several autoimmune diseases and cancers. Tolerogenic probiotics with regulatory properties can affect the maturation and development of immature dendritic cells (IDC) into mature DCs with certain immunomodulatory effects. Objective: To assess the immunomodulatory effect of Lactobacillus rhamnosus and Lactobacillus delbrueckii, as two tolerogenic probiotics, in the differentiation and maturation of myeloid dendritic cells. Methods: The IDCs were derived from the healthy donors in GMCSF and IL 4 medium. Mature DCs (MDC) were produced with L. delbrueckii, L. rhamnosus, and LPS from IDCs. Real-Time PCR and flow cytometry were used to confirm the DC maturation and to determine DC markers as well as IDO, IL10, and IL12 expression levels, respectively. Results: Probiotic-derived DCs showed a significant reduction in
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