1
|
Zhang QM, Ni WW, Li Y, Zhang X, Hou JC, Meng XC, Li AL, Jiang ZM. Analysis of altered miRNA profiling in the colon of a mouse model with β-lactoglobulin allergy. Allergol Immunopathol (Madr) 2020; 48:666-674. [PMID: 33131977 DOI: 10.1016/j.aller.2020.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 05/05/2020] [Accepted: 05/08/2020] [Indexed: 12/07/2022]
Abstract
OBJECTIVES The differences in the expression profiles of colonic miRNAs between β-lactoglobulin (β-Lg) allergic mice and normal mice were analyzed to investigate the important role of the miRNA regulation mechanism in the pathogenesis of cow's milk allergy. METHODS The present study performed Illumina sequencing to characterize the miRNA profile changes in mouse colon responding to β-Lg challenge. Target genes were predicted by TargetScan 50 and miRanda 3.3a algorithms and assessed by GO and KEGG analysis. The expression levels of selected miRNAs and cytokine production were verified by cell transfection and quantitative RT-PCR. RESULTS A total of 15 miRNAs were diversely expressed between the colon of the normal and β-Lg-sensitized mice (P < 0.05, fold change of >1.50 or <0.67), including six up-regulated miRNAs and nine down-regulated miRNAs, among which seven miRNAs were validated using qRT-PCR. GO enrichment and KEGG pathway analyses further revealed that biological process, protein binding, cytoplasm and the pathways of cancer were significantly enriched, which were closely connected to the allergic inflammation development. Additionally, six key functional interaction pairs in β-Lg allergy were identified in miRNA prediction algorithms and verified using qRT-PCR. CONCLUSIONS We can conclude that our results suggested that the miRNAs regulation network participated in the pathogenesis of cow's milk allergy.
Collapse
Affiliation(s)
- Q-M Zhang
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China
| | - W-W Ni
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China
| | - Y Li
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China
| | - X Zhang
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China
| | - J-C Hou
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China
| | - X C Meng
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China
| | - A-L Li
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China.
| | - Z-M Jiang
- Key Laboratory of Dairy Science, Ministry of Education, Food College, Northeast Agriculture University, Harbin, China.
| |
Collapse
|
2
|
Ni WW, Zhang QM, Zhang X, Li Y, Yu SS, Wu HY, Chen Z, Li AL, Du P, Li C. Modulation effect of Lactobacillus acidophilus KLDS 1.0738 on gut microbiota and TLR4 expression in β-lactoglobulin-induced allergic mice model. Allergol Immunopathol (Madr) 2020; 48:149-157. [PMID: 31477403 DOI: 10.1016/j.aller.2019.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/24/2019] [Accepted: 06/03/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVES β-lactoglobulin (β-Lg)-sensitized mice model was employed to investigate the correlation between Lactobacillus acidophilus KLDS 1.0738 (Lap KLDS 1.0738) modulating gut microbiota and inducting Toll-like receptors (TLRs) expression. METHODS The alterations of mice fecal microbiota were analyzed by 16S rRNA gene sequencing. The serum cytokines production and TLR4/NF-κB mRNA expression in the colon tissues were measured by ELISA kit and quantitative RT-PCR, respectively. RESULTS The results showed that Lap KLDS 1.0738 pretreatment attenuated β-Lg-induced hypersensitivity, accompanied with a diminished expression of TLR4/NF-κB signaling. Moreover, oral administration of Lap KLDS 1.0738 improved the richness and diversity of fecal microbiota, which was characterized by fewer Proteobacteria phylum and Helicobacteraceae family, and higher Firmicutes phylum and Lachnospiraceae family than allergic group. Notably, TLR4/NF-κB expression was positively correlated with the family of Helicobacteraceae in allergic group, but negatively correlated with the family of Lachnospiraceae, Ruminococcaceae and anti-inflammatory cytokines level. A significant positive correlation was observed between TLR4/NF-κB expression and the production of histamine, total IgE and pro-inflammatory cytokines. CONCLUSIONS Intake of Lap KLDS 1.0738 can influence the gut bacterial composition, which might result in recognizing TLRs signaling so as to inhibit allergic response.
Collapse
Affiliation(s)
- W-W Ni
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| | - Q-M Zhang
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| | - X Zhang
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| | - Y Li
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| | - S-S Yu
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| | - H-Y Wu
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| | - Z Chen
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| | - A-L Li
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China.
| | - P Du
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China.
| | - C Li
- Key Laboratory of Dairy Science, Food Science College, Northeast Agriculture University, Northeast Agriculture University, Harbin, China
| |
Collapse
|
3
|
Wang JJ, Zhang QM, Ni WW, Zhang X, Li Y, Li AL, Du P, Li C, Yu SS. Modulatory effect of Lactobacillus acidophilus KLDS 1.0738 on intestinal short-chain fatty acids metabolism and GPR41/43 expression in β-lactoglobulin-sensitized mice. Microbiol Immunol 2019; 63:303-315. [PMID: 31218724 DOI: 10.1111/1348-0421.12723] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/20/2019] [Accepted: 06/11/2019] [Indexed: 01/28/2023]
Abstract
We investigated the correlation between the beneficial effect of Lactobacillus acidophilus on gut microbiota composition, metabolic activities, and reducing cow's milk protein allergy. Mice sensitized with β-lactoglobulin (β-Lg) were treated with different doses of L. acidophilus KLDS 1.0738 for 4 weeks, starting 1 week before allergen induction. The results showed that intake of L. acidophilus significantly suppressed the hypersensitivity responses, together with increased fecal microbiota diversity and short-chain fatty acids (SCFAs) concentration (including propionate, butyrate, isobutyrate, and isovalerate) when compared with the allergic group. Moreover, treatment with L. acidophilus induced the expression of SCFAs receptors, G-protein-coupled receptors 41 (GPR41) and 43 (GPR43), in the spleen and colon of the allergic mice. Further analysis revealed that the GPR41 and GPR43 messenger RNA expression both positively correlated with the serum concentrations of transforming growth factor-β and IFN-γ (p < .05), but negatively with the serum concentrations of IL-17, IL-4, and IL-6 in the L. acidophilus-treated group compared with the allergic group (p < .05). These results suggested that L. acidophilus protected against the development of allergic inflammation by improving the intestinal flora, as well as upregulating SCFAs and their receptors GPR41/43.
Collapse
Affiliation(s)
- Jun-Juan Wang
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Qi-Min Zhang
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Wei-Wei Ni
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Xin Zhang
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Ying Li
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Ai-Li Li
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Peng Du
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Chun Li
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Su-Su Yu
- Food Science College, Northeast Agricultural University, Harbin, Heilongjiang, China
| |
Collapse
|
4
|
Li AL, Sun YQ, Du P, Meng XC, Guo L, Li S, Zhang C. The Effect of Lactobacillus actobacillus Peptidoglycan on Bovine β-Lactoglobulin-Sensitized Mice via TLR2/NF-κB Pathway. Iran J Allergy Asthma Immunol 2017; 16:147-158. [PMID: 28601055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Accepted: 04/07/2017] [Indexed: 06/07/2023]
Abstract
Our previous study reported that Lactobacillus acidophilus(L.acidophilus) key laboratory of dairy science (KLDS) 1.0738 had an effective impact on inhibiting β-lactoglobulin (β-lg) allergy. This study further investigated the anti-allergic activity of peptidoglycan (PGN) isolated from KLDS 1.0738. This study aimed to assess whether toll-like receptor 2 (TLR2)/NF-kappaB (NF-κB) signaling activated by PGN was responsible for reducing allergic inflammation. Our data showed that administration of L. acidophilus PGN inhibited IgE production and improved the Treg/Th17 balance toward a Treg response in a mouse model of β-lg allergy. In addition, treating different doses L. acidophilus PGN to sensitized mice significantly increased TLR2 levels, along with enhancing NF-κB expression, especially in medium and high concentration (p<0.05). Further analysis revealed that the mRNA expression of TLR2 and NF-κB were positively correlated with the Foxp3 mRNA expression (p<0.05), but were negatively correlated with the RORγt mRNA expression in L. acidophilus PGN-treated group compared to allergy group (p<0.05). This study suggests PGN was similar to probiotics in preventing β-lg allergy through regulating Treg/Th17 imbalance, and activation of TLR2/NF-κB signaling may be involved in this process.
Collapse
Affiliation(s)
- Ai-Li Li
- Key laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agriculture University, Xiangfang District, Harbin, Heilongjiang, China
| | - Yi-Qio Sun
- Key laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agriculture University, Xiangfang District, Harbin, Heilongjiang, China
| | - Peng Du
- Key laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agriculture University, Xiangfang District, Harbin, Heilongjiang, China
| | - Xiang-Chen Meng
- Key laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agriculture University, Xiangfang District, Harbin, Heilongjiang, China
| | - Ling Guo
- Key laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agriculture University, Xiangfang District, Harbin, Heilongjiang, China
| | - Shuang Li
- Key laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agriculture University, Xiangfang District, Harbin, Heilongjiang, China
| | - Chao Zhang
- Key laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agriculture University, Xiangfang District, Harbin, Heilongjiang, China
| |
Collapse
|