Decoding the impact of nuclear organization on antigenic variation in parasites

A Barcons-Simon, M Carrington, TN Siegel - Nature Microbiology, 2023 - nature.com
Antigenic variation as a strategy to evade the host adaptive immune response has evolved
in divergent pathogens. Antigenic variation involves restricted, and often mutually exclusive …

[HTML][HTML] Emergence and adaptation of the cellular machinery directing antigenic variation in the African trypanosome

J Faria, EM Briggs, JA Black, R McCulloch - Current opinion in …, 2022 - Elsevier
Survival of the African trypanosome within its mammalian hosts, and hence transmission
between hosts, relies upon antigenic variation, where stochastic changes in the composition …

Transcriptome, proteome and draft genome of Euglena gracilis

TGE Ebenezer, M Zoltner, A Burrell, A Nenarokova… - BMC biology, 2019 - Springer
Background Photosynthetic euglenids are major contributors to fresh water ecosystems.
Euglena gracilis in particular has noted metabolic flexibility, reflected by an ability to thrive in …

Variant surface glycoprotein density defines an immune evasion threshold for African trypanosomes undergoing antigenic variation

J Pinger, S Chowdhury, FN Papavasiliou - Nature communications, 2017 - nature.com
Trypanosoma brucei is a protozoan parasite that evades its host's adaptive immune
response by repeatedly replacing its dense variant surface glycoprotein (VSG) coat from its …

Evolution of the variant surface glycoprotein family in African trypanosomes

SS Pereira, AP Jackson, LM Figueiredo - Trends in parasitology, 2022 - cell.com
An intriguing and remarkable feature of African trypanosomes is their antigenic variation
system, mediated by the variant surface glycoprotein (VSG) family and fundamental to both …

RAD51-mediated R-loop formation acts to repair transcription-associated DNA breaks driving antigenic variation in Trypanosoma brucei

MJ Girasol, M Krasilnikova… - Proceedings of the …, 2023 - National Acad Sciences
RNA–DNA hybrids are epigenetic features of all genomes that intersect with many
processes, including transcription, telomere homeostasis, and centromere function …

Transcriptional regulation of telomeric expression sites and antigenic variation in trypanosomes

I Cestari, K Stuart - Current genomics, 2018 - ingentaconnect.com
Introduction: Trypanosoma brucei uses antigenic variation to evade the host antibody
clearance by periodically changing its Variant Surface Glycoprotein (VSGs) coat. T. brucei …

Ribonuclease H1-targeted R-loops in surface antigen gene expression sites can direct trypanosome immune evasion

E Briggs, K Crouch, L Lemgruber, C Lapsley… - PLoS …, 2018 - journals.plos.org
Switching of the Variant Surface Glycoprotein (VSG) in Trypanosoma brucei provides a
crucial host immune evasion strategy that is catalysed both by transcription and …

A quorum sensing-independent path to stumpy development in Trypanosoma brucei

H Zimmermann, I Subota, C Batram, S Kramer… - PLOS …, 2017 - journals.plos.org
For persistent infections of the mammalian host, African trypanosomes limit their population
size by quorum sensing of the parasite-excreted stumpy induction factor (SIF), which …

Telomere and subtelomere R-loops and antigenic variation in trypanosomes

A Saha, VP Nanavaty, B Li - Journal of molecular biology, 2020 - Elsevier
Trypanosoma brucei is a kinetoplastid parasite that causes African trypanosomiasis, which
is fatal if left untreated. T. brucei regularly switches its major surface antigen, VSG, to evade …