A Primate APOL1 Variant That Kills Trypanosoma brucei gambiense

Humans are protected against infection from most African trypanosomes by lipoprotein complexes present in serum that contain the trypanolytic pore-forming protein, Apolipoprotein L1 (APOL1). The human-infective trypanosomes, Trypanosoma brucei rhodesiense in East Africa and T. b. gambiense in West Africa have separately evolved mechanisms that allow them to resist APOL1-mediated lysis and cause human African trypanosomiasis, or sleeping sickness, in man. Recently, APOL1 variants were identified from a subset of Old World monkeys, that are able to lyse East African T. b. rhodesiense, by virtue of C-terminal polymorphisms in the APOL1 protein that hinder that parasite's resistance mechanism. Such variants have been proposed as candidates for developing therapeutic alternatives to the unsatisfactory anti-trypanosomal drugs currently in use. Here we demonstrate the in vitro lytic ability of serum and purified recombinant protein of an APOL1 ortholog from the West African Guinea baboon (Papio papio), which is able to lyse examples of all sub-species of T. brucei including T. b. gambiense group 1 parasites, the most common agent of human African trypanosomiasis. The identification of a variant of APOL1 with trypanolytic ability for both human-infective T. brucei sub-species could be a candidate for universal APOL1-based therapeutic strategies, targeted against all pathogenic African trypanosomes.

Medienart:

E-Artikel

Erscheinungsjahr:

2016

Erschienen:

2016

Enthalten in:

Zur Gesamtaufnahme - volume:10

Enthalten in:

PLoS neglected tropical diseases - 10(2016), 8 vom: 21. Aug., Seite e0004903

Sprache:

Englisch

Beteiligte Personen:

Cooper, Anneli [VerfasserIn]
Capewell, Paul [VerfasserIn]
Clucas, Caroline [VerfasserIn]
Veitch, Nicola [VerfasserIn]
Weir, William [VerfasserIn]
Thomson, Russell [VerfasserIn]
Raper, Jayne [VerfasserIn]
MacLeod, Annette [VerfasserIn]

Links:

Volltext

Themen:

Apolipoproteins
Journal Article
Recombinant Proteins
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 19.07.2017

Date Revised 09.01.2021

published: Electronic-eCollection

Citation Status MEDLINE

doi:

10.1371/journal.pntd.0004903

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM263153681