Project description:Vitamin B1 (VB1) is a key dietary nutrient and crucial cofactor, which exhibits a series of regulatory functions on cellular processes and the activation of the immune system. To date, the precise effect of VB1 on Mycobacterium tuberculosis has not been fully described. In the present study, the direct influence of VB1 treatment on M. bovis BCG was determined using RNA-sequencing. The selection of this strain was used due to its common physiological features with M.tuberculosis. The investigation of the M. bovis BCG transcription demonstrated significant changes in certain metabolic and cellular process such as the decrease in fatty acid, cholesterol and glycolipid catabolism, the decrease in DNA replication and protein translation, the reduction in cell division and cell wall formation and the induction of arginine biosynthesis. In addition, growth assays indicated that VB1 inhibited the BCG growth rate in vitro, whereas LC/MS analysis demonstrated that the concentration of arginine was higher following VB1 supplementation. It is suggested that VB1 could be used for the treatment of tuberculosis potentially.

2017-07-28 | GSE101963 | GEO

The prominent transcriptional and metabolites changes of Mycobacterium bovis BCG str. Tokyo 172 induced by vitamin B1

Project description:Vitamin B1 (VB1) is a key dietary nutrient and crucial cofactor, which exhibits a series of regulatory functions on cellular processes and the activation of the immune system. To date, the precise effect of VB1 on Mycobacterium tuberculosis has not been fully described. In the present study, the direct influence of VB1 treatment on M. bovis BCG was determined using RNA-sequencing and LC/MS. The selection of this strain was used due to its common physiological features with M.tuberculosis. The investigation of the M. bovis BCG transcription demonstrated significant changes in certain metabolic and cellular process such as the decrease in fatty acid, cholesterol and glycolipid catabolism, the decrease in DNA replication and protein translation, the reduction in cell division and cell wall formation. LC/MS indicated that most of amino acids and ADP decreased in VB1 processed culture. In addition, growth assays indicated that VB1 inhibited the BCG growth rate in vitro. This study will be benefit for our deeply understanding for impact of VB1 to M.tuberculosis.

2019-05-08 | GSE114949 | GEO

Amino acid metabolism regulated by DNA Methylation in Mycobacterium bovis BCG str. Tokyo 172 induced by vitamins

Project description:Vitamins are organic compounds and essential nutrients required by host organism. Recent studies have shown that vitamin B1(VB1) and vitamin C (Vc) could inhibit Mycobacterium tuberculosis growth. However, the precise role of VB1 and Vc in M.tuberculosis are still not well understand. Therefore, in this study, the transcriptional, metabolic and methylation profiles of VB1 and VC treated Mycobacterium. bovis BCG were analyzed by RNA-sequencing, LC-MS (Liquid chromatography coupled to mass spectrometry) and SMRT. The RNA-seq show that gene encoding cysteine synthase A was significantly up-regulated under both vitamins treatment, metabolic study show that most of amino acids decreased in VB1 treated BCG, in constrast, most of amino acids increased in VC treated samples. Methylome data show that m4c modificatiion partically is present in VC treated BCG and the expression of most genes harboring m4c methylation modificaiton increased. In all, these data imply that potentially increased concentration of cysteine might lead to BCG growth inhibition induced by VB1 and VC duing to produce superoxide which could cause DNA damage via Fetions reacition. The m4c methylation modification could promote gene transcription to some extent. In all, this study will benefit for us to futher understand the roles of VB1 and VC which could be used as potential anti-tuberculosis drugs.

2020-01-16 | GSE141513 | GEO

Mycobacterium tuberculosis 02_1987

Project description:Strain being sequenced for comparative analysis

| PRJNA29167 | ENA

Lipid phenotype of two distinct subpopulations of Mycobacterium bovis Bacillus Calmette-Guerin Tokyo 172 substrain.

Project description: Not available

| S-EPMC3243544 | biostudies-literature