Probiotics Enhance Bone Growth and Rescue BMP Inhibition: New Transgenic Zebrafish Lines to Study Bone Health.
Jerry Maria SojanRatish RamanMarc MullerOliana CarnevaliJörg RennPublished in: International journal of molecular sciences (2022)
Zebrafish larvae, especially gene-specific mutants and transgenic lines, are increasingly used to study vertebrate skeletal development and human pathologies such as osteoporosis, osteopetrosis and osteoarthritis. Probiotics have been recognized in recent years as a prophylactic treatment for various bone health issues in humans. Here, we present two new zebrafish transgenic lines containing the coding sequences for fluorescent proteins inserted into the endogenous genes for sp7 and col10a1a with larvae displaying fluorescence in developing osteoblasts and the bone extracellular matrix (mineralized or non-mineralized), respectively. Furthermore, we use these transgenic lines to show that exposure to two different probiotics, Bacillus subtilis and Lactococcus lactis , leads to an increase in osteoblast formation and bone matrix growth and mineralization. Gene expression analysis revealed the effect of the probiotics, particularly Bacillus subtilis , in modulating several skeletal development genes, such as runx2 , sp7 , spp1 and col10a1a , further supporting their ability to improve bone health. Bacillus subtilis was the more potent probiotic able to significantly reverse the inhibition of bone matrix formation when larvae were exposed to a BMP inhibitor (LDN212854).
Keyphrases
- bacillus subtilis
- bone regeneration
- bone mineral density
- healthcare
- bone loss
- public health
- extracellular matrix
- postmenopausal women
- genome wide
- genome wide identification
- mental health
- copy number
- endothelial cells
- mesenchymal stem cells
- gene expression
- quantum dots
- signaling pathway
- zika virus
- single cell
- health promotion
- aedes aegypti
- combination therapy
- induced pluripotent stem cells
- genetic diversity