Upregulated transcription of phenoloxidase genes in the pharynxand endostyle of Ciona intestinalis in response to LPS

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Abstract

We investigated the role of phenoloxidases (POs) in ascidians inflammatory reaction, a components of acopper-containing protein family involved in invertebrate immune system. In Ciona intestinalis two phenoloxidases(CinPO-1, CinPO-2) have been sequenced. In the present study, real time PCR analysis showedthat both CinPO-1 and CinPO-2 genes were modulated by LPS inoculation suggesting that they are inducibleand highly expressed in the inflamed pharynx. In situ hybridization disclosed CinPO-1 and CinPO-2transcripts in pharynx hemocytes (granulocytes) and, mainly, in unilocular refractile granulocytes (URG)which mainly populated the inflamed tunic matrix. Interestingly, the genes are also upregulated by LPS inthe endostyle (zones 7, 8 and 9) that is considered homolog to the vertebrate thyroid.
Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalJournal of Invertebrate Pathology
Volume126
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

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