Cysteine proteases as digestive enzymes in parasitic helminths.

Abstract:

:We briefly review cysteine proteases (orthologs of mammalian cathepsins B, L, F, and C) that are expressed in flatworm and nematode parasites. Emphasis is placed on enzyme activities that have been functionally characterized, are associated with the parasite gut, and putatively contribute to degrading host proteins to absorbable nutrients [1-4]. Often, gut proteases are expressed as multigene families, as is the case with Fasciola [5] and Haemonchus [6], presumably expanding the range of substrates that can be degraded, not least during parasite migration through host tissues [5]. The application of the free-living planarian and Caenorhabditis elegans as investigative models for parasite cysteine proteases is discussed. Finally, because of their central nutritive contribution, targeting the component gut proteases with small-molecule chemical inhibitors and understanding their utility as vaccine candidates are active areas of research [7].

journal_name

PLoS Negl Trop Dis

authors

Caffrey CR,Goupil L,Rebello KM,Dalton JP,Smith D

doi

10.1371/journal.pntd.0005840

subject

Has Abstract

pub_date

2018-08-23 00:00:00

pages

e0005840

issue

8

eissn

1935-2727

issn

1935-2735

pii

PNTD-D-17-00623

journal_volume

12

pub_type

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