A sticky situation: When trypanosomatids attach to insect tissues.

Transmission of trypanosomatids to their mammalian hosts requires a complex series of developmental transitions in their insect vectors, including stable attachment to an insect tissue. While there are many ultrastructural descriptions of attached cells, we know little about the signaling events and...

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Main Authors: Megan L Povelones, Nikki A Holmes, Michael Povelones
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-12-01
Series:PLoS Pathogens
Online Access:https://doi.org/10.1371/journal.ppat.1011854
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author Megan L Povelones
Nikki A Holmes
Michael Povelones
author_facet Megan L Povelones
Nikki A Holmes
Michael Povelones
author_sort Megan L Povelones
collection DOAJ
description Transmission of trypanosomatids to their mammalian hosts requires a complex series of developmental transitions in their insect vectors, including stable attachment to an insect tissue. While there are many ultrastructural descriptions of attached cells, we know little about the signaling events and molecular mechanisms involved in this process. Each trypanosomatid species attaches to a specific tissue in the insect at a particular stage of its life cycle. Attachment is mediated by the flagellum, which is modified to accommodate a filament-rich plaque within an expanded region of the flagellar membrane. Attachment immediately precedes differentiation to the mammal-infectious stage and in some cases a direct mechanistic link has been demonstrated. In this review, we summarize the current state of knowledge of trypanosomatid attachment in insects, including structure, function, signaling, candidate molecules, and changes in gene expression. We also highlight remaining questions about this process and how the field is poised to address them through modern approaches.
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spelling doaj.art-4fb150f0c62f4cba961af08f8d451ce22024-02-13T05:32:24ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742023-12-011912e101185410.1371/journal.ppat.1011854A sticky situation: When trypanosomatids attach to insect tissues.Megan L PovelonesNikki A HolmesMichael PovelonesTransmission of trypanosomatids to their mammalian hosts requires a complex series of developmental transitions in their insect vectors, including stable attachment to an insect tissue. While there are many ultrastructural descriptions of attached cells, we know little about the signaling events and molecular mechanisms involved in this process. Each trypanosomatid species attaches to a specific tissue in the insect at a particular stage of its life cycle. Attachment is mediated by the flagellum, which is modified to accommodate a filament-rich plaque within an expanded region of the flagellar membrane. Attachment immediately precedes differentiation to the mammal-infectious stage and in some cases a direct mechanistic link has been demonstrated. In this review, we summarize the current state of knowledge of trypanosomatid attachment in insects, including structure, function, signaling, candidate molecules, and changes in gene expression. We also highlight remaining questions about this process and how the field is poised to address them through modern approaches.https://doi.org/10.1371/journal.ppat.1011854
spellingShingle Megan L Povelones
Nikki A Holmes
Michael Povelones
A sticky situation: When trypanosomatids attach to insect tissues.
PLoS Pathogens
title A sticky situation: When trypanosomatids attach to insect tissues.
title_full A sticky situation: When trypanosomatids attach to insect tissues.
title_fullStr A sticky situation: When trypanosomatids attach to insect tissues.
title_full_unstemmed A sticky situation: When trypanosomatids attach to insect tissues.
title_short A sticky situation: When trypanosomatids attach to insect tissues.
title_sort sticky situation when trypanosomatids attach to insect tissues
url https://doi.org/10.1371/journal.ppat.1011854
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