| Literature DB >> 18486941 |
Zahra Mojtahedi1, Joachim Clos, Eskandar Kamali-Sarvestani.
Abstract
The differentiation from procyclic to metacyclic promastigotes (metacyclogenesis) has been correlated with an increased infectivity in a number of Leishmania species. We compared the proteomes of procyclic and metacyclic promastigotes of L. major. Lysates from either life cycle stage were resolved by 2D-PAGE, followed by Coomassie brilliant blue staining. Spots were analyzed by MALDI-TOF MS. 25 protein spots were found to be differentially expressed during metacyclogenesis. We found that proteins involved in protein synthesis were less abundant in metacyclic promastigotes, while proteins involved in motility, including paraflagellar rod protein 1D, alpha-tubulin and beta-tubulin were more abundant. Also, two mitochondrial enzymes (succinyl-CoA synthetase beta subunit and cytochrome c oxidase subunit IV) were differentially expressed in both life cycle stages. Down-regulation of proteins related to synthetic pathway in metacyclic promastigotes is consistent with the arrested growth in this life cycle stage, while up-regulation of proteins related to motility in metacyclic promastigotes is in agreement with the high motility observed in this stage.Entities:
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Year: 2008 PMID： 18486941 DOI： 10.1016/j.exppara.2008.04.008
Source DB: PubMed Journal: Exp Parasitol ISSN： 0014-4894 Impact factor: 2.011