J 2023

The role of invariant surface glycoprotein 75 in xenobiotic acquisition by African trypanosomes

MAKAROV, Alexandr, Jakub BEGAN, Ileana Corvo MAUTONE, Erika PINTO, Liam FERGUSON et. al.

Basic information

Original name

The role of invariant surface glycoprotein 75 in xenobiotic acquisition by African trypanosomes

Authors

MAKAROV, Alexandr, Jakub BEGAN, Ileana Corvo MAUTONE, Erika PINTO, Liam FERGUSON, Martin ZOLTNER, Sebastian ZOLL and Mark C FIELD (guarantor)

Edition

MICROBIAL CELL, AUSTRIA, SHARED SCIENCE PUBLISHERS OG, 2023, 2311-2638

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10601 Cell biology

Country of publisher

Austria

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.600 in 2022

RIV identification code

RIV/00216224:90242/23:00133763

UT WoS

000928489100001

Keywords in English

invariant surface glycoprotein; trypanosome; suramin; drug metabolism; drug accumulation; CRISPR; Cas9; xenobiotics

Tags

Tags

International impact, Reviewed
Změněno: 11/4/2024 23:13, Mgr. Michal Petr

Abstract

V originále

The surface proteins of parasitic protozoa mediate functions es-sential to survival within a host, including nutrient accumulation, environ-mental sensing and immune evasion. Several receptors involved in nutrient uptake and defence from the innate immune response have been described in African trypanosomes and, together with antigenic variation, contribute to-wards persistence within vertebrate hosts. Significantly, a superfamily of in-variant surface glycoproteins (ISGs) populates the trypanosome surface, one of which, ISG75, is implicated in uptake of the century-old drug suramin. By CRISPR/Cas9 knockout and biophysical analysis, we show here that ISG75 di-rectly binds suramin and mediates uptake of additional naphthol-related compounds, making ISG75 a conduit for entry of at least one structural class of trypanocidal compounds. However, ISG75 null cells present only modest attenuation of suramin sensitivity, have unaltered viability in vivo and in vitro and no alteration to suramin-invoked proteome responses. While ISG75 is demonstrated as a valid suramin cell entry pathway, we suggest the presence of additional mechanisms for suramin accumulation, further demonstrating the complexity of trypanosomatid drug interactions and potential for evolu-tion of resistance.

Links

90242, large research infrastructures
Name: CIISB III