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Molecular cloning and expression analysis of Pleurodeles waltl complement component C3 under normal physiological conditions and environmental stresses

Abstract : C3 is a component of the complement system that plays a central role in immunity, development and tissue regeneration. In this study, we isolated the C3 cDNA of the Iberian ribbed newt Pleurodeles waltl. This cDNA encodes a 1637 amino acid protein with an estimated molecular mass of 212.5 kDa. The deduced amino acid sequence showed that P. waltl C3 contains all the conserved domains known to be critical for C3 function. Quantitative real-time PCR (qRT-PCR) demonstrated that under normal physiological conditions, P. waltl C3 mRNA is expressed early during development because it is likely required for neurulation. Then, its expression increased as the immune system developed. In adults, the liver is the richest source of C3, though other tissues can also contribute. Further analysis of C3 expression demonstrated that C3 transcription increased when P. waltl larvae were exposed to pH or temperature stress, suggesting that environmental modifications might affect this animal's defenses against pathogens.
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https://hal.univ-lorraine.fr/hal-01481089
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Submitted on : Thursday, March 2, 2017 - 11:13:44 AM
Last modification on : Tuesday, October 13, 2020 - 10:46:50 AM

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Nathan Guéguinou, Cécile Huin-Schohn, Nassima Ouzren-Zarhloul, Stéphanie Ghislin, Jean-Pol Frippiat. Molecular cloning and expression analysis of Pleurodeles waltl complement component C3 under normal physiological conditions and environmental stresses. Developmental and Comparative Immunology, Elsevier, 2014, 46 (2), pp.180 - 185. ⟨10.1016/j.dci.2014.04.011⟩. ⟨hal-01481089⟩

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