Results 11 to 20 of about 2,182,609 (246)

Antigenic Variation in Vector-Borne Pathogens [PDF]

open access: yesEmerging Infectious Diseases, 2000
Several pathogens of humans and domestic animals depend on hematophagous arthropods to transmit them from one vertebrate reservoir host to another and maintain them in an environment.
Alan G. Barbour, Blanca I. Restrepo
doaj   +3 more sources

A histone methyltransferase modulates antigenic variation in African trypanosomes. [PDF]

open access: yesPLoS Biology, 2008
To evade the host immune system, several pathogens periodically change their cell-surface epitopes. In the African trypanosomes, antigenic variation is achieved by tightly regulating the expression of a multigene family encoding a large repertoire of ...
Luisa M Figueiredo   +2 more
doaj   +3 more sources

Mosaic VSGs and the scale of Trypanosoma brucei antigenic variation. [PDF]

open access: yesPLoS Pathogens, 2013
A main determinant of prolonged Trypanosoma brucei infection and transmission and success of the parasite is the interplay between host acquired immunity and antigenic variation of the parasite variant surface glycoprotein (VSG) coat.
James P J Hall   +2 more
doaj   +2 more sources

Mechanisms Mediating Antigenic Variation in Trypanosoma brucei

open access: yesMemorias do Instituto Oswaldo Cruz, 1999
Antigenic variation in Trypanosoma brucei is a highly sophisticated survival strategy involving switching between the transcription of one of an estimated thousand variant surface glycoprotein (VSG) genes.
Rudenko Gloria
doaj   +2 more sources

Antigenic variation in Trypanosoma brucei: joining the DOTs. [PDF]

open access: yesPLoS Biology, 2008
African trypanosomes, such as <i>Trypanosoma brucei</i>, are protistan parasites that cause sleeping sickness. Though first described more than a century ago, trypanosomes remain a blight on the health of the human population and on the ...
Chris Stockdale   +3 more
doaj   +2 more sources

Fungal antigenic variation using mosaicism and reassortment of subtelomeric genes' repertoires. [PDF]

open access: yesNat Commun, 2023
Surface antigenic variation is crucial for major pathogens that infect humans. To escape the immune system, they exploit various mechanisms. Understanding these mechanisms is important to better prevent and fight the deadly diseases caused. Those used by
Meier CS   +8 more
europepmc   +3 more sources

Antigenic variation in African trypanosomes [PDF]

open access: yes, 2014
Studies on Variant Surface Glycoproteins (VSGs) and antigenic variation in the African trypanosome, Trypanosoma brucei, have yielded a remarkable range of novel and important insights. The features first identified in T.
Horn, David; id_orcid
core   +1 more source

PacBio Amplicon Sequencing Method To Measure Pilin Antigenic Variation Frequencies of Neisseria gonorrhoeae

open access: yesmSphere, 2019
Gene diversification is a common mechanism pathogens use to alter surface structures to aid in immune avoidance. Neisseria gonorrhoeae uses a gene conversion-based diversification system to alter the primary sequence of the gene encoding the major ...
Egon A. Ozer   +5 more
doaj   +1 more source

DNA break site at fragile subtelomeres determines probability and mechanism of antigenic variation in African trypanosomes. [PDF]

open access: yes, 2013
Antigenic variation in African trypanosomes requires monoallelic transcription and switching of variant surface glycoprotein (VSG) genes. The transcribed VSG, always flanked by '70 bp'-repeats and telomeric-repeats, is either replaced through DNA double ...
Glover, Lucy   +12 more
core   +1 more source

Mini-review: Strategies for Variation and Evolution of Bacterial Antigens

open access: yesComputational and Structural Biotechnology Journal, 2015
Across the eubacteria, antigenic variation has emerged as a strategy to evade host immunity. However, phenotypic variation in some of these antigens also allows the bacteria to exploit variable host niches as well.
Janet Foley
doaj   +1 more source

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