Expression patterns of the novel imprinted genes Nap1l5 and Peg13 and their non-imprinted host genes in the adult mouse brain

Davies, William ORCID: https://orcid.org/0000-0002-7714-2440, Smith, Rachel J., Kelsey, Gavin and Wilkinson, Lawrence Stephen ORCID: https://orcid.org/0000-0002-9337-6124 2004. Expression patterns of the novel imprinted genes Nap1l5 and Peg13 and their non-imprinted host genes in the adult mouse brain. Gene Expression Patterns 4 (6) , pp. 741-747. 10.1016/j.modgep.2004.03.008

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Abstract

Recent work has implicated imprinted gene functioning in neurodevelopment and behaviour and defining the expression patterns of these genes in brain tissue has become a key prerequisite to establishing function. In this work we report on the expression patterns of two novel imprinted loci, Nap1l5 and Peg13, in adult mouse brain using in situ hybridisation methods. Nap1l5 and Peg13 are located, respectively, within the introns of the non-imprinted genes Herc3 and the Tularik1 (T1)/KIAA1882 homologue in two separate microimprinted domains on mouse chromosomes 6 and 15. These ‘host’ genes are highly expressed in brain and consequently we were interested in assessing their expression patterns in parallel to the imprinted genes. The brain expression of all four genes appeared to be mainly neuronal. The detailed expression profiles of Nap1l5 and Peg13 were generally similar with widespread expression that was relatively high in the septal and hypothalamic regions, the hippocampus and the cerebral cortex. In contrast, there was some degree of dissociation between the imprinted genes and their non-imprinted hosts, in that, whilst there was again widespread expression of Herc3 and the T1/KIAA1882 homologue, these genes were also particularly highly expressed in Purkinje neurons and piriform cortex. We also examined expression of the novel imprinted genes in the adrenal glands. Nap1l5 expression was localised mainly to the adrenal medulla, whilst Peg13 expression was observed more generally throughout the adrenal medulla and the outer cortical layers.

Item Type:	Article
Status:	Published
Schools:	Psychology Medicine MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG) Neuroscience and Mental Health Research Institute (NMHRI)
Uncontrolled Keywords:	Adrenal glands; Behaviour; Brain; Herc3; Hypothalamus; Imprinted genes; KIAA1882 homologue; Microimprinted domain; Nap1l5; Peg13; Piriform cortex; Purkinje neurons; Septum; Tularik 1 (T1); 1810044A24Rik
Publisher:	Elsevier
ISSN:	1567-133x
Last Modified:	28 Sep 2023 12:28
URI:	https://orca.cardiff.ac.uk/id/eprint/13785

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