» Articles » PMID: 34819379

Gliding Motility of Merozoites

Overview
Specialty Science
Date 2021 Nov 25
PMID 34819379
Citations 22
Authors
Affiliations
Soon will be listed here.
Abstract

malaria parasites are obligate intracellular protozoans that use a unique form of locomotion, termed gliding motility, to move through host tissues and invade cells. The process is substrate dependent and powered by an actomyosin motor that drives the posterior translocation of extracellular adhesins which, in turn, propel the parasite forward. Gliding motility is essential for tissue translocation in the sporozoite and ookinete stages; however, the short-lived erythrocyte-invading merozoite stage has never been observed to undergo gliding movement. Here we show merozoites possess the ability to undergo gliding motility in vitro and that this mechanism is likely an important precursor step for successful parasite invasion. We demonstrate that two human infective species, and , have distinct merozoite motility profiles which may reflect distinct invasion strategies. Additionally, we develop and validate a higher throughput assay to evaluate the effects of genetic and pharmacological perturbations on both the molecular motor and the complex signaling cascade that regulates motility in merozoites. The discovery of merozoite motility provides a model to study the glideosome and adds a dimension for work aiming to develop treatments targeting the blood stage invasion pathways.

Citing Articles

Expanding the fluorescent toolkit: Blue fluorescent protein-expressing Plasmodium berghei for enhanced multiplex microscopy.

Atchou K, Caldelari R, Roques M, Schmuckli-Maurer J, Beyeler R, Heussler V PLoS One. 2025; 20(3):e0308055.

PMID: 40029851 PMC: 11875362. DOI: 10.1371/journal.pone.0308055.


Adhesion-driven vesicle translocation through membrane-covered pores.

Baruah N, Midya J, Gompper G, Dasanna A, Auth T Biophys J. 2025; 124(5):740-752.

PMID: 39863923 PMC: 11897550. DOI: 10.1016/j.bpj.2025.01.012.


Emergent actin flows explain distinct modes of gliding motility.

Hueschen C, Segev-Zarko L, Chen J, LeGros M, Larabell C, Boothroyd J Nat Phys. 2024; 20(12):1989-1996.

PMID: 39669527 PMC: 11631758. DOI: 10.1038/s41567-024-02652-4.


Red blood cell signaling is functionally conserved in invasion.

Yong J, Gao X, Prakash P, Ang J, Lai S, Chen M iScience. 2024; 27(10):111052.

PMID: 39635131 PMC: 11615254. DOI: 10.1016/j.isci.2024.111052.


Submicrometre spatiotemporal characterization of the Toxoplasma adhesion strategy for gliding motility.

Vigetti L, Touquet B, Debarre D, Rose T, Bureau L, Abdallah D Nat Microbiol. 2024; 9(12):3148-3164.

PMID: 39496912 DOI: 10.1038/s41564-024-01818-3.


References
1.
Dennis E, Mitchell G, Butcher G, Cohen S . In vitro isolation of Plasmodium knowlesi merozoites using polycarbonate sieves. Parasitology. 1975; 71(3):475-81. DOI: 10.1017/s0031182000047235. View

2.
Geoghegan N, Evelyn C, Whitehead L, Pasternak M, McDonald P, Triglia T . 4D analysis of malaria parasite invasion offers insights into erythrocyte membrane remodeling and parasitophorous vacuole formation. Nat Commun. 2021; 12(1):3620. PMC: 8206130. DOI: 10.1038/s41467-021-23626-7. View

3.
Boucher L, Bosch J . The apicomplexan glideosome and adhesins - Structures and function. J Struct Biol. 2015; 190(2):93-114. PMC: 4417069. DOI: 10.1016/j.jsb.2015.02.008. View

4.
MILLER L, Aikawa M, Johnson J, Shiroishi T . Interaction between cytochalasin B-treated malarial parasites and erythrocytes. Attachment and junction formation. J Exp Med. 1979; 149(1):172-84. PMC: 2184746. DOI: 10.1084/jem.149.1.172. View

5.
Mohring F, Hart M, Rawlinson T, Henrici R, Charleston J, Diez Benavente E . Rapid and iterative genome editing in the malaria parasite provides new tools for research. Elife. 2019; 8. PMC: 6579517. DOI: 10.7554/eLife.45829. View