期刊
ACTA TROPICA
卷 142, 期 -, 页码 156-166出版社
ELSEVIER
DOI: 10.1016/j.actatropica.2014.11.015
关键词
Antibacterial activity; Excretory-secretory products; Filaria; Functional peptides; Onchocerca
资金
- Deutsche Forschungsgemeinschaft (German-African Cooperation Projects in Infectiology) [PAK296]
- Hamburg Ministry of Science
- Research and Joachim Herz Stiftung, Hamburg Initiative for Excellence in Research
- Hamburg School for Structure and Dynamics in Infection (SDI)
Parasitic helminths excrete or secrete a variety of functional molecules into the internal milieu of their mammalian hosts and arthropod vectors which reveal distinct immunomodulatory and other biological activities. We identified and initially characterized the low molecular weight peptide composition of the secretome from the filarial parasite Onchocerca ochengi. A total of 85 peptides were purified by liquid chromatography and further characterized by mass spectrometry. 72 of these peptides were derived from already described Onchocerca proteins and 13 peptide sequences are included in the sequence of uncharacterized proteins. Three peptides, similar to host defense peptides, revealed antibacterial activity. The present analysis confirms the putative involvement of low molecular weight compounds in the parasite-host cross-talk. (C) 2014 Elsevier B.V. All rights reserved.
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