Protection Mechanism of Metal Ion Pre-Stress on <i>Lactobacillus acidophilus</i> CICC 6074 under Acid Tolerance

Zhang, Tao; Guo, Yuxing; Fan, Xiankang; Liu, Mingzhen; Xu, Jue; Zeng, Xiaoqun; Sun, Yangying; Wu, Zhen; Pan, Daodong

doi:10.1021/acs.jafc.3c01970

Cited by 4 publications

(1 citation statement)

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“…The study of the role of proteins in microbial physiological processes and the systematic identification and quantification of protein expression levels are made possible by proteomic analysis (proteomics), which is an essential tool in biomedical research . Previous research has employed proteomics to examine the mechanisms by which bacteria adapt to severe environmental stressors . Tandem mass tags (TMT) technology was utilized to precisely quantify proteins, resulting in increased efficiency and accuracy because of its high throughput and low systematic error.…”

Section: Introductionmentioning

confidence: 99%

Proteomic Analysis of Milk Fat Globule Membrane Protein Modulation of Differently Expressed Proteins in Lactobacillus plantarum under Bile Salt Stress

Yang,

Liang,

Song

et al. 2024

J. Agric. Food Chem.

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Tolerance to bile stress is a crucial property for lactic acid bacteria (LAB) to survive in the gastrointestinal tract and exert their beneficial effects. Whey powder enriched with milk fat globule membrane proteins (M-WPI) as a functional component is protective for strains under stress conditions. The current study investigated the key mechanisms of action involved in Lactobacillus plantarum (L. plantarum) CGMCC 23701 survival in the presence of bile and the protective mechanism of M-WPI. According to proteomic analysis (proteomics), there could be several reasons for the greater protective effect of M-WPI. These include promoting the synthesis of fatty acids and peptidoglycans to repair the structure of the cell surface, regulating the metabolism of carbohydrates and amino acids to release energy and produce a range of precursors, enabling the expression of the repair system to repair damaged DNA, and promoting the expression of proteins associated with the multidrug efflux pump, which facilitates the exocytosis of intracellular bile salts. This study helps us to better understand the changes in proteome of L. plantarum CGMCC 23701 under bile salt stress and M-WPI protection, which will provide a new method for the protection and development of functional LAB.

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Section: Introductionmentioning

confidence: 99%