6533b7dcfe1ef96bd1273435

RESEARCH PRODUCT

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

Valentina ManganoNicolò ParrinelloAiti VizziniDaniela ParrinelloMatteo CammarataMaria Antonietta SanfratelloMaria Rosa Trapani

subject

LipopolysaccharidesAscidian Phenoloxidase Hemocyte Inflammation LPS Ciona intestinalisAscidian Phenoloxidase Hemocyte Inflammation LPS Ciona intestinalisHemocytesbiologyProtein familyMonophenol MonooxygenaseSettore BIO/05 - ZoologiaIn situ hybridizationReal-Time Polymerase Chain Reactionbiology.organism_classificationMolecular biologyCiona intestinalisUp-RegulationReal-time polymerase chain reactionImmune systemTranscription (biology)ImmunologyAnimalsCiona intestinalisGeneIn Situ HybridizationEcology Evolution Behavior and SystematicsEndostyle

description

We investigated the role of phenoloxidases (POs) in ascidians inflammatory reaction, a components of a copper-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 showed that both CinPO-1 and CinPO-2 genes were modulated by LPS inoculation suggesting that they are inducible and highly expressed in the inflamed pharynx. In situ hybridization disclosed CinPO-1 and CinPO-2 transcripts 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 in the endostyle (zones 7, 8 and 9) that is considered homolog to the vertebrate thyroid.

yearjournalcountryeditionlanguage
2015-02-04
10.1016/j.jip.2015.01.009http://hdl.handle.net/10447/123503