| First Author | Gaur P | Year | 2014 |
| Journal | Mol Biol Rep | Volume | 41 |
| Issue | 10 | Pages | 6855-63 |
| PubMed ID | 25015265 | Mgi Jnum | J:323432 |
| Mgi Id | MGI:6868832 | Doi | 10.1007/s11033-014-3571-1 |
| Citation | Gaur P, et al. (2014) Alterations in the Sp1 binding and Fmr-1 gene expression in the cortex of the brain during maturation and aging of mouse. Mol Biol Rep 41(10):6855-63 |
| abstractText | Fragile X mental retardation protein (FMRP) has been implicated in learning, memory and cognition, therefore, information on alterations in FMRP expression during maturation and aging may provide a clue towards understanding mechanisms of age-dependent cognitive changes in the brain. In the present paper, we have studied Fmr-1 gene expression and its correlation with interaction of a tans-acting factor Sp1with Fmr-1 promoter in the cerebral cortex of female mice at post natal period during maturation and aging. Our data reveal that level of Fmr-1 transcript in the cerebral cortex is significantly up regulated at day 7 after birth compared to day 0 (the day of birth) and is gradually down regulated from day 15 onward to old age. The pattern of Fmr-1 transcript levels corresponds with the level of FMRP, however, its level is significantly up regulated in old age compared to adult mice. Our EMSA data revealed the formation of a single complex as a result of binding of Sp1with Fmr-1 promoter sequence. Its intensity gradually decreased from the day 0 (day of birth) till day 15, remained unaltered in young, significantly decreased in adult and significantly increased in old age. Our data suggests that age-dependent alteration in the Fmr-1 gene expression is associated with Sp1 interaction with Fmr-1 promoter which in turn might be related with cognitive development during brain maturation and aging. |
