Literature citations

Expression of mRNA for the elav-like neural-specific RNA binding protein, HuD, during nervous system development.

The expression of mRNA for the neuronal antigen HuD (Elavl4) associated with paraneoplastic encephalomyelitis and sensory neuronopathy was evaluated in the developing and adult rat nervous system. Using RNase protection assay and non- radioactive in situ hybridization histochemistry HuD expression was shown to be expressed at high levels at the earliest time point observed (E15), but declined significantly during the first postnatal week to levels which were maintained into adulthood. In the adult, HuD expression became restricted primarily to large pyramidal-like neurons. Exceptions of note were many smaller neurons within a variety of thalamic nuclei. Expression of HuD was observed to be coincident with terminal differentiation of all neuronal structures evaluated regardless of the timing of their development, providing correlative evidence for a role in neuronal differentiation or the maintenance of neuronal phenotype. The marked restriction of HuD mRNA expression with maturity suggests that its functional role in adult neurons varies significantly throughout the CNS.

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