scholarly journals Immunomodulatory and anti-inflammatory effects of Phellinus linteus mycelium

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mi-Rae Shin ◽  
Ji Hye Lee ◽  
Jin A Lee ◽  
Min Ju Kim ◽  
Hae-Jin Park ◽  
...  
Keyword(s):  
Mononuclear Cells ◽  
Raw264.7 Cells ◽  
Phellinus Linteus ◽  
T Helper ◽  
Korean Red Ginseng ◽  
Peripheral Blood Mononuclear ◽  
Ifn Γ ◽  
Anti Inflammatory ◽  
The Sacrifice ◽  
Helper Type

Abstract Background The present study extensively aimed to evaluate the underlying mechanism of the immunomodulatory and anti-inflammatory effects of Phellinus linteus mycelium (PLM). Methods To assess whether PLM influences the production of markers related to inflammation, Lipopolysaccharide (LPS)-stimulated RAW264.7 cells were treated with PLM (50, 100, 200, and 500 μg/mL). Splenocyte, thymus, peritoneal exudate cells (PEC), and peripheral blood mononuclear cells (PBMC) were isolated from the Balb/c mice treated with Korean red ginseng or PLM once a day for 5 weeks. Moreover, all mice except normal mice were stimulated with 10% proteose peptone (PP) treated 3 days before the sacrifice and 2% starch treated 2 days before the sacrifice. Subsequently, the cytotropic substance was evaluated by using flow cytometry analysis and ELISA assay. Results PLM200 treatment significantly suppressed the production of nitric oxide (NO) and prostaglandin E2 (PGE2) and inhibited the release of proinflammatory cytokines such as interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α dose-dependently in the LPS-stimulated RAW264.7 cells. PLM200 supplementation showed a significant increase in IL-2, IL-12, and interferon (IFN)-γ production and upregulated the ratio of IFN-γ (T-helper type 1, Th1) to IL-4 (T-helper type 2, Th2) in splenocytes. After PLM200 treatment, the significant elevation of CD4+CD25+, CD4+&CD8+, and CD4+CD69+ treatment were detected in thymus. Moreover, CD4+ and CD4+CD69+ in PBMC and CD69+ in PEC were also shown in a significant increase. Conclusions Taken together, these results showed an immunomodulatory effect of PLM about an elevated INF-γ/IL4 ratio, as an index of Th1/Th2, as well as the anti-inflammatory effect in the LPS-stimulated RAW264.7 cells. Therefore, our findings demonstrate that PLM possesses immunostimulatory and anti-inflammatory effects.

Abstract 425: Lycopene Modulates T Lymphocyte Function by Modulating Th1 Responses and Treg Lymphocyte Population

2015 ◽  
Vol 35 (suppl_1) ◽  
Author(s):  
Lynsey M Mills ◽  
Heather Wilson ◽  
Frank Thies
Keyword(s):  
T Lymphocyte ◽  
T Regulatory Cells ◽  
Mononuclear Cells ◽  
T Cell Subsets ◽  
Lymphocyte Function ◽  
T Helper ◽  
T Helper 1 ◽  
Peripheral Blood Mononuclear ◽  
Lymphocyte Activity ◽  
Ifn Γ

Increased lycopene intake might have cardiovascular benefits, potentially through anti-inflammatory mechanisms. We recently showed that lycopene can influence lymphocyte activity by modulating processes involved in early cellular activation. T lymphocytes comprise different subsets, T cytotoxic, T helper 1 (Th1), T helper 2 (Th2) and T regulatory cells (Treg). We aimed to determine whether lycopene could specifically modulate T-cell subsets function and activity. Peripheral blood mononuclear cells from 11 healthy adults were cultured for 18hr to 60h in the presence of lycopene-enriched liposomes (0-1.18μg lycopene/ml) with or without mitogens. The secretion of cytokines representative of Th1,Th2 and Treg activities were measured by ELISA (IL-2, IL-1β, IL-10, IFN-γ and TGF-β) or cytometric bead array (IL-4, IL-10, IL17 and IFN-γ). The population profile of Tc (CD3+/CD8+), Th (CD3+/CD4+), Treg (CD4+/CD25+), and the Treg subsets nTreg (CD4+/CD25+/FoxP3+) and iTreg (CD4+/CD25+/IL-10+) was determined by flow cytometry. After 18h incubation, IL-2 concentration in the medium was significantly reduced (-29%, p=0.001) in the presence of lycopene (1.18μg/mL). Similar effects were observed after 36h and 60h culture for IFN-γ (-23%, p=0.015), Il-10 (-30%, p=0.023), IL-17 (-30%, p=0.019) but not IL-4 or TGF-β. The proportion of Treg cell was also significantly increased by 36% (p=0.001) in the presence of lycopene (1.18μg/mL) compared with non-treated activated cells. Furthermore, the proportions of iTreg cells were significantly increased by after incubation with lycopene while the proportion of nTreg cells decreased (-20.5 %, p=0.049). We conclude that increased lycopene intake may be beneficial against atherogenesis by modulating T lymphocyte function, particularly in relation toTh1 and Treg.

Renal Cell Carcinoma Induces Prostaglandin E2 and T-Helper Type 2 Cytokine Production in Peripheral Blood Mononuclear Cells

2003 ◽  
Vol 10 (4) ◽  
pp. 455-462 ◽  
Author(s):  
Gordon P. Smyth ◽  
Philip P. Stapleton ◽  
Catherine B. Barden ◽  
Juan R. Mestre ◽  
Tracy A. Freeman ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Peripheral Blood Mononuclear Cells ◽  
Renal Cell ◽  
Mononuclear Cells ◽  
Cytokine Production ◽  
T Helper ◽  
Peripheral Blood Mononuclear ◽  
Blood Mononuclear Cells ◽  
Helper Type

scholarly journals Downregulation of Inflammatory Cytokine Release from IL-1β and LPS-Stimulated PBMC Orchestrated by ST2825, a MyD88 Dimerisation Inhibitor

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4322
Author(s):  
Sergio Ramírez-Pérez ◽  
Luis Alexis Hernández-Palma ◽  
Edith Oregon-Romero ◽  
Brian Uriel Anaya-Macías ◽  
Samuel García-Arellano ◽  
...  
Keyword(s):  
Inflammatory Cytokines ◽  
Inflammatory Cytokine ◽  
Mononuclear Cells ◽  
Cytokine Production ◽  
Primary Response ◽  
Peripheral Blood Mononuclear ◽  
Inflammatory Cytokine Production ◽  
Ifn Γ ◽  
Anti Inflammatory ◽  
Pathway Inhibition

The inflammatory process implicates homeostasis disruption and increased production of inflammatory mediators. Myeloid differentiation primary response 88 (MyD88) is an essential protein recruited after lipopolysaccharide (LPS) and interleukin (IL)-1β stimulation, a process that converges in nuclear factor kappa B (NF-κB) activation, as well as a transcription of several genes of both pro- and anti-inflammatory cytokines. The inhibition of MyD88 has shown efficacy by decrease inflammatory response, and has demonstrated potential application as a therapeutic target in chronic diseases. In this study, we investigate the effect of MyD88 dimerisation inhibitor ST2825 on cytokine production from rhIL-1β and LPS-stimulated peripheral blood mononuclear cells (PBMC) from healthy blood donors (HBD). ST2825 significantly downregulates the production of IFN-γ, IL-6, IL-12, IL-2, IL-15, IL-7, VEGF, IL-1Ra, IL-4, IL-5, IL-13 and IL-9 (p < 0.05) in LPS-stimulated PBMC. Moreover, ST2825 had a relatively low impact on IL-1β signalling pathway inhibition, showing that only a few specific cytokines, such as IFN-γ and IL-1Ra, are inhibited in rhIL-1β-stimulated PBMC (p < 0.01). In conclusion, MyD88 dimerisation inhibitor ST2825 showed high efficacy by inhibiting pro- and anti-inflammatory cytokine production in LPS-stimulated PBMC. Moreover, although rhIL-1β induced a sustained cytokine production (p < 0.05), ST2825 did not show a significant effect in the secretion of neither pro- nor anti-inflammatory cytokines in rhIL-1β-stimulated PBMC.

scholarly journals Characterization of Humoral and Cellular Immune Responses Elicited by Meningococcal Carriage

2002 ◽  
Vol 70 (3) ◽  
pp. 1301-1309 ◽  
Author(s):  
K. Robinson ◽  
K. R. Neal ◽  
C. Howard ◽  
J. Stockton ◽  
K. Atkinson ◽  
...  
Keyword(s):  
Undergraduate Students ◽  
Mononuclear Cells ◽  
T Helper ◽  
T Helper 1 ◽  
Peripheral Blood Mononuclear ◽  
Interleukin 5 ◽  
Whole Cell Lysate ◽  
Intracellular Cytokines ◽  
Ifn Γ ◽  
Cellular Immune

ABSTRACT In order to study the immune response elicited by asymptomatic carriage of Neisseria meningitidis, samples of serum, peripheral blood mononuclear cells (PBMCs), and saliva were collected from a cohort of more than 200 undergraduate students in Nottingham, United Kingdom, who were subject to high rates of acquisition and carriage of meningococci. Serum immunoglobulin G levels were elevated following increases in the rate of carriage, and these responses were specific for the colonizing strains. In order to investigate T-cell responses, PBMCs from 15 individuals were stimulated with a whole-cell lysate of the H44/76 meningococcal strain (B:15:P1.7,16), stained to detect cell surface markers and intracellular cytokines, and examined by flow cytometry. The cells were analyzed for expression of CD69 (to indicate activation), gamma interferon (IFN-γ) (a representative T-helper 1 subset [Th1]-associated cytokine), and interleukin-5 (IL-5) (a Th2-associated cytokine). Following a brief meningococcal stimulation, the numbers of CD69+ IFN-γ+ CD56/16+ NK cells were much higher than cytokine-positive CD4+ events. Both IFN-γ+ and IL-5+ events were detected among the CD69+ CD4+ population, leading to the conclusion that an unbiased T-helper subset response was elicited by meningococcal carriage.

scholarly journals Differentiation of T-helper cells in distinct phases of atopic dermatitis involves Th1/Th2 and Th17/Treg

2017 ◽  
Vol 15 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Chuanli Su ◽  
Tao Yang ◽  
Zhihong Wu ◽  
Jiang Zhong ◽  
Yunshu Huang ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Mononuclear Cells ◽  
Treg Cells ◽  
Th2 Cells ◽  
T Helper ◽  
Peripheral Blood Mononuclear ◽  
Th Cell ◽  
Blood Mononuclear Cells ◽  
Ifn Γ ◽  
Tgf Β1

The aim of this article is to study T-helper (Th) cell differentiation in the progression of acute, subacute, and chronic atopic dermatitis. Skin biopsies from 48 patients with acute, subacute, and chronic atopic dermatitis were studied using immunohistochemistry with antibodies to TARC/CCL17, CTACK/CCL27, and RANTES/CCL5. Peripheral blood mononuclear cells were studied in 17 patients using flow cytometry to measure the content of Th1/Th2 cells and Th17/Treg cells. Levels of interferon (IFN)-γ, interleukin (IL)-4, IL-17A, and transforming growth factor (TGF)-β1 were evaluated with enzyme-linked immunosorbent assay (ELISA). Distinctive expressions of T-cell-specific chemokines TARC/CCL17, CTACK/CCL27, and RANTES/CCL5 were observed at different stages of atopic dermatitis, which were consistent with the differentiation of the Th cell subsets, Th2/Th1, and Th17/Treg. Th2 and Th17 were acute-phase subsets, while Th1 and Treg were chronic-phase subsets. At an early stage of atopic dermatitis, Th17 and Th2 cells were found in peripheral blood mononuclear cells, followed by Th1 cells, Treg cells, and eosinophils; in late-stage or subacute and chronic atopic dermatitis, Th17 and Th2 cell numbers decreased. The levels of the IFN-γ and TGF-β1 increased during the progression of atopic dermatitis from acute to chronic forms. The levels of IL-17A and IL-4 decreased during the progression of atopic dermatitis from acute to chronic forms. The differentiation of Th subsets at distinct phases in atopic dermatitis may form the basis for further studies on the classification or control of this increasingly common clinical condition.

scholarly journals The Role of Leptin in Childhood Immune Thrombocytopenia (ITP): An Anti-Inflammatory Agent?

2021 ◽  
Vol 22 (14) ◽  
pp. 7636
Author(s):  
Iason Thomas ◽  
Ioannis Panagoulias ◽  
Ioanna Aggeletopoulou ◽  
Anastasia Varvarigou ◽  
Bessie E. Spiliotis ◽  
...  
Keyword(s):  
Gene Expression ◽  
Mononuclear Cells ◽  
Steroid Treatment ◽  
Cytokine Gene Expression ◽  
Cytokine Gene ◽  
Peripheral Blood Mononuclear ◽  
Inflammatory Agent ◽  
Ifn Γ ◽  
Anti Inflammatory ◽  
Acute Itp

To investigate the effect of leptin in childhood ITP, we measured plasma leptin in 39 children with acute ITP, after treatment and in remission, and in 33 healthy age/BMI-matched controls. We also cultured ITP and control peripheral blood mononuclear cells (PBMCs) with recombinant leptin to assess its direct effect on pro/anti-inflammatory cytokine gene expression. A significant increase in leptin was observed in children with active disease compared to controls. A significant inverse correlation of leptin with platelet count was also observed in children with acute ITP. Leptin remained high after treatment with IVIg, whereas steroid treatment lowered leptin below control levels. In remission, leptin was in the control range. Cytokine gene expression was significantly increased in children with acute ITP compared with controls, with highest expression for IFN-γ and IL-10. IVIg/steroid treatment significantly decreased IFN-γ and IL-10 expression. In remission, IFN-γ and IL-10 expression remained low. Addition of leptin to PBMCs isolated from patients in remission resulted in a significant increase in IL-10 gene expression compared to controls. Further experiments with purified T-cells and monocytes identified monocytes as the source of leptin-induced IL-10. We suggest that leptin acts as an active anti-inflammatory agent in childhood ITP by promoting IL-10 secretion by monocytes.

scholarly journals Presence of PTPN2 SNP rs1893217 Enhances the Anti-inflammatory Effect of Spermidine

2020 ◽  
Vol 26 (7) ◽  
pp. 1038-1049
Author(s):  
Anna Niechcial ◽  
Matthias Butter ◽  
Salomon Manz ◽  
Nicole Obialo ◽  
Katharina Bäbler ◽  
...  
Keyword(s):  
Mononuclear Cells ◽  
Lentiviral Vector ◽  
Intestinal Epithelial ◽  
Inflammatory Signaling ◽  
Peripheral Blood Mononuclear ◽  
Stat3 Phosphorylation ◽  
Potential Biomarker ◽  
Ifn Γ ◽  
Anti Inflammatory ◽  
Inflammatory Effect

Abstract Background The single nucleotide polymorphism (SNP) rs1893217 within the gene locus encoding PTPN2 represents a risk factor for inflammatory bowel disease (IBD). Our previous work demonstrated reduced PTPN2 activity and subsequently increased inflammatory signaling upon presence of SNP rs1893217. The naturally occurring polyamine spermidine reduces pro-inflammatory signaling via induction of PTPN2 activity; however, the effect of SNP rs1893217 on the anti-inflammatory potential of spermidine is still unknown. Here, we investigated how presence of SNP rs1893217 affects treatment efficacy of spermidine and whether it might serve as a potential biomarker for spermidine treatment. Methods Human T84 (wild-type [WT] for PTPN2 SNP rs1893217) and HT29 (heterozygous for PTPN2 SNP rs1893217) intestinal epithelial cells (IECs) were treated with several polyamines from the putrescine-spermidine pathway. T84 and HT29 IECs, THP-1 monocytes (WT and transfected with a lentiviral vector expressing PTPN2 SNP rs1893217) and genotyped, patient-derived peripheral blood mononuclear cells were challenged with IFN-γ and/or spermidine. Results Among the analyzed polyamines, spermidine was the most efficient activator of PTPN2 phosphatase activity, regardless of the PTPN2 genotype. Spermidine suppressed IFN-γ-induced STAT1 and STAT3 phosphorylation, along with decreased mRNA expression of ICAM-1, NOD2, and IFNG in IECs and monocytes. Of note, these effects were clearly more pronounced when the disease-associated PTPN2 C-variant in SNP rs1893217 was present. Conclusions Our data demonstrate that spermidine is the most potent polyamine in the putrescine-spermine axis for inducing PTPN2 enzymatic activity. The anti-inflammatory effect of spermidine is potentiated in the presence of SNP rs1893217, and this SNP might thus be a useful biomarker for possible spermidine-treatment in IBD patients.

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