Altered LAMA1 expression in the aganglionic region may contribute to impaired ENCC migration, resulting in HD. These data could help in understanding the pathophysiologic interactions between LAMA1 and ENCC migration.
Our results suggest that laminin-1 does not have a positive effect on ENCC migration in HD mice on E12.5, in contrast to the phenomenon seen in normal mice gut specimens, where laminin-1 promotes ENCC migration during the same period. This suggests that there is an impairment in the interaction between ENCC and extracellular environmental factors, which are required for normal development of the enteric nervous system, resulting in an aganglionic colon in HD.
Our results suggest increased glial differentiation causes an imbalance in ENCC lineages, leading to a disruption of normal ENS development in this HD model. Isolation of ENCC provides an opportunity to investigate the ENS with purity and might be a useful tool for modeling cell therapy approaches to HD.
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