Publications by authors named "Jin Hiruta"

Lasp-1 and lasp-2 are actin-binding proteins that contain a LIM domain, nebulin repeats, and an SH3 domain and they are significantly conserved in mammalian and avian. Lasp-1 is widely expressed in nonmuscle tissues and lasp-2 is specifically expressed in the brain. Genes encoding proteins homologous to lasp-1 and lasp-2 were deposited in the genome/cDNA database of invertebrates such as sea urchins, nematodes, and insects; however, function of their proteins have not been studied in detail.

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The Publisher regrets that this article is an accidental duplication of an article that has already been published in Biochim. Biophys. Acta, doi:10.

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The ascidian Ciona intestinalis, a marine invertebrate chordate, is an emerging model system for developmental and evolutionary studies. The endostyle, one of the characteristic organs of ascidians, is a pharyngeal structure with iodine-concentrating and peroxidase activities and is therefore considered to be homologous to the follicular thyroid of higher vertebrates. We have previously reported that a limited part of the endostyle (zone VII) is marked by the expression of orthologs of the thyroid peroxidase (TPO) and thyroid transcription factor-2 (TTF-2/FoxE) genes.

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Article Synopsis
  • The endostyle in invertebrate chordates resembles the vertebrate thyroid and exhibits some similar functions, though they differ structurally in organization and complexity.
  • Expression patterns of thyroid-related transcription factors in ascidian and amphioxus species indicate evolutionary relationships and potential functions linked to thyroid development.
  • Findings suggest that key genetic components for thyroid function were already present in ancestral chordates before the evolution of vertebrates.
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