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Differential distribution and biochemical characteristics of hydrolases among developmental stages of Schistosoma mansoni may offer new anti-parasite targets.

Abstract：

:Schistosoma mansoni enzymes play important roles in host-parasite interactions and are potential targets for immunological and/or pharmacological attack. The aim of this study was to comparatively assess the presence of hydrolytic activities (phosphatases, glycosidases, aminopeptidases) in soluble (SF) and membrane (MF) fractions from different S. mansoni developmental stages (schistosomula 0 and 3h, juveniles, and adult worms of 28 and 45days-old, respectively), by using simple enzyme-substrate microassays. Our results show and confirm the prominent presence of alkaline phosphatase (AlP) activity in the MF of all the above parasite stages, highlighting also the relevant presence of MF-associated α-mannosidase (α-MAN) activity in juveniles. A soluble AlP activity, together with β-N-D-acetylglucosaminidase (β-NAG), and α-MAN activities, was detected in SF of schistosomulum 0h. Soluble β-NAG, α-MAN, acid phosphatase (AcP), leucin (LAP) and alanine (AAP) aminopeptidase activities were also seen in the SF of the other different developmental stages. This work shows different soluble and membrane-associated hydrolytic capacities in each S. mansoni developmental stage from schistosomula to adults that might be exploitable as potential new targets for immune and/or chemoprophylactic strategies.

journal_name

Parasitol Int

journal_title

Parasitology international

authors

Fernández-Delgado M,Cortez J,Sulbarán G,Matos C,Incani RN,Ballén DE,Cesari IM

doi

10.1016/j.parint.2016.09.015

subject

Has Abstract

pub_date

2017-02-01 00:00:00

pages

816-820

issue

1

eissn

1383-5769

issn

1873-0329

pii

S1383-5769(16)30170-2

journal_volume

66

pub_type

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