scholarly journals Immunity Improvement and Gut Microbiota Remodeling of Mice by Wheat Germ Globulin

Author(s):  
Guanghai Yu ◽  
Xiaoguo Ji ◽  
Jihong Huang ◽  
Aimei Liao ◽  
Pan Long ◽  
...  

Abstract The wheat germ protein (WG) and it’s proteolytic peptide have a variety of biological activities. Our previous work showed that WG could improve immunity of the immunosuppressive mice established by cyclophosphamide. However, in the healthy condition and normal diet, as a supplementary food, the effects of immunity improvement and gut microbiota remodeling by the wheat germ globulin has not been studied yet. Here, we reported that WG could improve the immunity and remodel the gut microbiota of the mice, as a safe functional supplementary food for the first time. The increase of interleukin-6 (IL-6) and the decrease of tumor necrosis factor α (TNF-α) and interleukin-10 (IL-10) indicated that WG could enhance the levels of activated T cells and monocytes and anti-inflammatory ability, meanwhile, the significant increase of immunoglobin G (lgG) and the notable decrease of the immunoglobin M (lgM) and immunoglobin A (lgA) illustrated that WG could improve immunity by promoting the differentiation and maturation process of B cells, compared with the NC group. 16S rRNA sequencing showed WG could remodel the gut microbiota. At the phylum level, the Bacteroidetes were reduced and Firmicutes were increased in WG group, compared with NC group. At the genus level, the SCFA producing genera of unclassified_f_Lachnospiraceae, Blautia and especially the Roseburia (increased more than threefold) increased notably. Further, the level changes of cytokines and immunoglobulins were associated with the gut microbiota. This work showed that WG could improve immunity and has potential application value as an immune-enhancing functional food.

2021 ◽  
Author(s):  
Zhijia Zhou ◽  
Lingxia Xu ◽  
Shaoliang Zhang ◽  
Shilin Xu ◽  
Yanmiao Yang ◽  
...  

Abstract Objective: Chlorogenic acid and geniposide (CG) are derived from traditional Chinese medicine, Yinchenhao Recipe (QCHR), and can improve the clinical efficacy of NASH patients. This study investigated the effects of CG on NASH and expounded its Potential mechanism of action through the LPS-TLR4 pathway and microbiota. Methods: Rats were randomized into Control (C), Model (M), Chlorogenic Acid and Geniposide (CG), Pioglitazone (PH) and Bifico (B) groups. After an 8-week high-fat diet (HFD), CG, PH and B oral treatment were initiated and carried out for a further 8 weeks. The stool samples were used in a16S rDNA V4 highly variable region measurement method in order to regulate the role of CG in gut microbiota. The concentrations of triglyceride (TG), cholesterol (CHO), interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) in LPS were detected by the corresponding methods. Results: Observations were made that CG significantly improved the pathology of the liver and terminal ileum tissue. The accumulation of TG and the content of inflammatory cytokines in the liver were significantly decreased and the abundance of Proteobacteria was significantly down-regulated. The expression of TLR4, AP-1, MyD88, and phosphorylated NF-κB p65 were significantly decreased. All the findings above indicated that CG was highly effective in improving the composition of gut microbiota, decreasing the production of endogenous LPS, and reducing the secretion of inflammatory cytokines through the gut-liver axis.Conclusion: CG can regulate the abundance and diversity of the intestinal microbial community and improve liver inflammation and steatosis in NASH rats by reducing LPS-TLR4-mediated inflammation.


2020 ◽  
Vol 181 (12) ◽  
pp. 956-965
Author(s):  
Hong Ma ◽  
Ting Tan ◽  
Jie Wu ◽  
Juan Chen ◽  
Xiaohong Zhang

<b><i>Background:</i></b> Predisposition to hyperthyroidism may be influenced by functional gene polymorphisms in tumor necrosis factor-α (<i>TNF-α</i>), interleukin-1 (<i>IL-1</i>), interleukin-4 (<i>IL-4</i>), interleukin-6 (<i>IL-6</i>), and interleukin-10 (<i>IL-10</i>). However, the results of the studies published so far remain discrepant, so we conducted a meta-analysis to more robustly investigate relationships between <i>TNF-α</i>/<i>IL-1/IL-4/IL-6/IL-10</i> polymorphisms and predisposition to hyperthyroidism. <b><i>Methods:</i></b> A comprehensive literature retrieval from PubMed, Embase, Web of Science, WanFang, VIP, and CNKI was endorsed by the authors, and 38 studies were found to be eligible for pooled meta-analyses. <b><i>Results:</i></b> We found that genotypic frequencies of <i>TNF-α</i> −308 G/A, <i>IL-1A</i> −889 C/T, <i>IL-6</i> −174 G/C, <i>IL-6</i> −572 G/C, <i>IL-10</i> −819 C/T, and <i>IL-10</i> −1082 A/G polymorphisms among cases were significantly different from those among controls. Moreover, we also found that genotypic frequencies of <i>TNF-α</i> −308 G/A and <i>IL-6</i> −174 G/C polymorphisms among cases of Caucasian origin were significantly different from those among Caucasian controls, and genotypic frequencies of <i>IL-1A</i> −889 C/T, <i>IL-1B</i> −511 C/T, <i>IL-6</i> −174 G/C, <i>IL-6</i> −572 G/C, and <i>IL-10</i> −1,082 A/G polymorphisms among cases of Asian origin were also significantly different from those among Asian controls. <b><i>Conclusions:</i></b> This meta-analysis suggests that <i>TNF-α</i> −308 G/A, <i>IL-1A</i> −889 C/T, <i>IL-1B</i> −511 C/T, <i>IL-6</i> −174 G/C, <i>IL-6</i> −572 G/C, <i>IL-10</i> −819 C/T, and <i>IL-10</i> −1,082 A/G polymorphisms may influence predisposition to hyperthyroidism in certain ethnic groups.


2017 ◽  
Vol 3 (1) ◽  
pp. 24 ◽  
Author(s):  
Shiv Kumar Yadav ◽  
Rahul Bhattacharya

Fentanyl is a potent synthetic opioid analgesic. However, due to its several limitations, new analogues are being synthesised for better pain management. We have earlier reported the synthesis and bio-efficacy of fentanyl and its eight new analogues (1-8) in mice. Among eight analogues tested, N-(1-(2-phenoxyethyl)-4-piperidinyl)propionanilide (2), N-isopropyl-3-(4-(N-phenylpropionamido)piperidin-1-yl)propanamide (5), and N-t-butyl-3-(4-(N-phenylpropionamido)piperidin-1-yl)propanamide (6) were found to be more effective and less toxic compared to fentanyl. Therapeutic efficacy of fentanyl and its analogues are known to be compromised due to many adverse effects, including alterations in the immune system. Therefore, the present study was undertaken to assess the acute effect of fentanyl and its three analogues (2, 5, and 6) on plasma levels of different pro-inflammatory cytokines such as interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α), and anti-inflammatory cytokines such as interleukin-10 (IL-10) at different time points. Mice were intraperitoneally treated with 0.50 LD50 of the compounds and cytokines were measured 1 h, 2 h, 4 h, and 24 h post-exposure. Compared to control, none of the treatments produced any change in TNF-α and IL-1β levels. However, IL-6 levels were significantly elevated between 1 h to 2 h post-exposure in fentanyl and analogue 2 treated groups. Further, IL-10 levels were found to be significantly increased in fentanyl, analogue 2, and 6 treated groups at 1 h and 2 h post-exposure. Pre-treatment of naltrexone (opioid receptor antagonist) blocked the effects of fentanyl, confirming that its effects were opioid receptor- dependent. However, effect of naltrexone on analogue 2 and 6 was not conclusively evidenced, indicating that immunomodulatory changes caused by the analogues could have some additional implications as well. The present study reveals undesirable effects of fentanyl and its new analogues on cytokines homeostasis, thereby limiting their use in pain management.


PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259570
Author(s):  
Binhong Hu ◽  
Yuqing Dong ◽  
Wenjing Zhou ◽  
Yichuan Ma ◽  
Luyao Li ◽  
...  

Inonotus obliquus Polysaccharide (IOP) is a large molecule extracted from Inonotus obliqus, a medicinal fungus, which has a wide range of biological activities and has been shown to be associated with inflammation. The purpose of this study is to investigate whether IOP can help to reduce acute endometritis by regulating intestinal flora. We observed pathological changes in mice with endometritis following treatment with IOP and evaluated changes in the levels of interleukin-6 (IL-6), interleukin-1β (IL-1β) and tumor necrosis factor α (TNF-α), and further studied the effects of IOP on the intestinal flora of endometritis mice using 16S rRNA high-throughput sequencing. The results showed that IOP improved the condition of uterine tissues and reduced the release of pro-inflammatory cytokines. Meanwhile, the 16S rRNA sequencing results showed that IOP could regulate the changes in intestinal microflora at the level of genera, possibly by changing the relative abundance of some genera.


2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Qiqi Huang ◽  
Yi Wang ◽  
Binbin Gu ◽  
Yanwen Xu

Abstract Background Whether polymorphisms in tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10) or adiponectin (ADIPOQ) influence the risk of gestational diabetes mellitus (GDM) or not remain inconclusive. Therefore, the authors conducted a meta-analysis to robustly assess relationships between polymorphisms in TNF-α, IL-6, IL-10 or ADIPOQ and the risk of GDM by merging the results of eligible publications. Methods A through literature searching in Medline, Embase, Wanfang, VIP and CNKI was conducted by the authors to identify eligible publications, and twenty-two publications were finally found to be eligible for merged quantitative analyses. Results The merged quantitative analyses revealed that ADIPOQ + 45T/G (rs2241766) polymorphism was significantly associated with the risk of GDM in overall population (dominant comparison: OR = 0.70, p < 0.001; recessive comparison: OR = 1.95, p < 0.001; over-dominant comparison: OR = 1.18, p = 0.03; allele comparison: OR = 0.71, p < 0.001) and Asians (dominant comparison: OR = 0.70, p < 0.001; recessive comparison: OR = 1.94, p < 0.001; allele comparison: OR = 0.72, p < 0.001). Nevertheless, we did not observe any positive results for TNF-α − 238G/A (rs361525), TNF-α − 308G/A (rs1800629), IL6 − 174G/C (rs1800795), IL-10 − 819C/T (rs1800871), IL-10 − 592C/A (rs1800872), IL-10 − 1082A/G (rs1800896) and ADIPOQ + 276G/T (rs1501299) polymorphisms. Conclusions The present meta-analysis shows that among investigated TNF-α, IL-6, IL-10 or ADIPOQ polymorphisms, only ADIPOQ + 45T/G (rs2241766) polymorphism may affect the risk of GDM.


2013 ◽  
Vol 68 (7-8) ◽  
pp. 293-301
Author(s):  
Marcela B. Quilles ◽  
Camila B. A. Carli ◽  
Sandra R. Ananias ◽  
Lucas S. Ferreira ◽  
Livia C. A. Ribeiro ◽  
...  

Palladium(II) complexes are an important class of cyclopalladated compounds that play a pivotal role in various pharmaceutical applications. Here, we investigated the antitumour, anti-inflammatory, and mutagenic effects of two complexes: [Pd(dmba)(Cl)tu] (1) and [Pd(dmba)(N3)tu] (2) (dmba = N,N-dimethylbenzylamine and tu = thiourea), on Ehrlich ascites tumour (EAT) cells and peritoneal exudate cells (PECs) from mice bearing solid Ehrlich tumour. The cytotoxic effects of the complexes on EAT cells and PECs were assessed using the 3-(4,5-dimethylthiazol-3-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay. The effects of the complexes on the immune system were assessed based on the production of nitric oxide (NO) (Griess assay) and tumour necrosis factor-α (TNF-α), interleukin-12 (IL-12), and interleukin-10 (IL-10) (ELISA). Finally the mutagenic activity was assessed by the Ames test using the Salmonella typhimurium strain TA 98. Cisplatin was used as a standard. The IC50 ranges for the growth inhibition of EAT cells and PECs were found to be (72.8 ± 3.23) μM and (137.65 ± 0.22) μM for 1 and (39.7 ± 0.30) μM and (146.51 ± 2.67) μM for 2, respectively. The production of NO, IL-12, and TNF-α, but not IL-10, was induced by both complexes and cisplatin. The complexes showed no mutagenicity in vitro, unlike cisplatin, which was mutagenic in the strain. These results indicate that the complexes are not mutagenic and have potential immunological and antitumour activities. These properties make them promising alternatives to cisplatin


2006 ◽  
Vol 291 (2) ◽  
pp. L257-L264 ◽  
Author(s):  
Qingdong Ke ◽  
Jingxia Li ◽  
Jin Ding ◽  
Min Ding ◽  
Liying Wang ◽  
...  

Occupational exposure to crystalline silica has been associated with progressive pulmonary silicosis and lung cancer, but the underlying molecular mechanisms are not well understood. Previous studies have shown that crystalline silica exposure can generate reactive oxygen species (ROS) and induce the expression of the inflammatory cytokine tumor necrosis factor-α (TNF-α) in cells. TNF-α is believed to be critical in the development of silica-related diseases. Thus it will be of significance to understand the mechanisms of TNF-α induction by silica exposure. Given the fact that the transcription factor nuclear factor of activated T cells (NFAT) plays an important role in the regulation of TNF-α and can also be activated by ROS, in this study we investigated the potential role of ROS in silica-induced NFAT activity as well as TNF-α expression in Cl41 cells. The results showed that exposure of cells to silica led to NFAT transactivation and TNF-α induction, where superoxide anion radical (O2−·), but not H2O2, was involved. The knockdown of NFAT3 by its specific small interfering RNA significantly attenuated the silica-induced TNF-α transcription. This study demonstrated that silica was able to activate NFAT in an O2−·-dependent manner, which was required for TNF-α induction.


2001 ◽  
Vol 10 (4) ◽  
pp. 191-197 ◽  
Author(s):  
Galina V. Shmarina ◽  
Alexander L. Pukhalsky ◽  
Svetlana N. Kokarovtseva ◽  
Daria A. Pukhalskaya ◽  
Lidia A. Shabalova ◽  
...  

Background:The balance between tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) is important for immune homeostasis maintenance. Exuberant production of TNF-α contributes to overwhelming inflammatory response and tissue damage. But, commonly, increase in TNF-α is counterbalanced by simultaneous synthesis of an anti-inflammatory cytokine IL-10, which suppresses production of many activating and regulatory mediators.Aims:In the present study, the relationships between TNF-α and IL-10 in the plasma of healthy schoolchildren and cystic fibrosis (CF) patients have been investigated.Methods:Blood samples were obtained from 12 CF patients with chronic pulmonary disease and 18 healthy schoolchildren vaccinated with live attenuated rubella vaccine. IL-10 and TNF-α were determined in the plasma samples using commercially available enzyme-linked immunosorbent assay kits.Results:Before vaccination, most healthy children (13 of 18) demonstrated superiority of pro-inflammatory TNF-α over anti-inflammatory IL-10 (TNF-α/IL-10 Â 1). In these subjects, a significant positive linear association between the cytokine values has been found. Vaccine challenge resulted in a marked reduction of TNF-α/IL-10 ratios. In addition, a disappearance of correlation between the cytokine values was observed. Such disturbance was related to exuberant elevation of the IL-10 levels after inoculation. On the contrary, in CF individuals, plasma cytokine values remained in strong linear association independently of TNF-α or IL-10 predominance. No spikes in the plasma levels of IL-10 in CF patients during a 6-month observation period have been revealed.Conclusions:There were no fundamental differences between CF and healthy children in the regulation of TNF-α and IL-10 secretion. Thus, immune quiescence seemed to be associated with the predominance of TNF-α, whereas immune disturbance was characterized by IL-10 superiority. The only abnormality that was found in CF patients consisted of their inability to produce unlimitedly IL-10 in response to antigen stimuli.


2021 ◽  
Vol 11 (8) ◽  
pp. 504-509
Author(s):  
P. Olekshij

The aim of our study is to elucidate changes in the content of pro-inflammatory interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) and anti-inflammatory cytokines interleukin-10 (IL-10) in the blood serum of guinea pigs in the dynamics of experimental periodontitis and immobilization stress.The dynamics of the combined pathology (experimental periodontitis and immobilization stress) is accompanied by a pronounced progression of the proinflammatory group of cytokines - TNF-α and IL-6 against the background of declining functional activity of IL-10 at all stages of their formation (3 rd , 5 th and 15 th days) with an advantage on the 15 th day of the experiment. The data obtained indicate an imbalance of pro- and anti-inflammatory cytokines and impaired cytokinogenesis, which is important for the pathogenesis in this combined pathology.


Sign in / Sign up

Export Citation Format

Share Document