» Articles » PMID: 38747593

MRNA Cap-binding Protein EIF4E1 is a Novel Regulator of Latency

Overview
Journal mBio
Specialty Microbiology
Date 2024 May 15
PMID 38747593
Authors
Affiliations
Soon will be listed here.
Abstract

Importance: is an opportunistic pathogen important to global human and animal health. There are currently no chemotherapies targeting the encysted form of the parasite. Consequently, a better understanding of the mechanisms controlling encystation is required. Here we show that the mRNA cap-binding protein, eIF4E1, regulates the encystation process. Encysted parasites reduce eIF4E1 levels, and depletion of eIF4E1 decreases the translation of ribosome-associated machinery and drives encystation. Together, these data reveal a new layer of mRNA translational control that regulates parasite encystation and latency.

Citing Articles

SPARK regulates AGC kinases central to the asexual cycle.

Herneisen A, Peters M, Smith T, Shortt E, Lourido S Elife. 2024; 13.

PMID: 39136687 PMC: 11321763. DOI: 10.7554/eLife.93877.


Functional Characterization of Six Eukaryotic Translation Initiation Factors of Using the CRISPR-Cas9 System.

Kou Y, Gao J, Li R, Ma Z, Elsheikha H, Wu X Int J Mol Sci. 2024; 25(14).

PMID: 39063076 PMC: 11276994. DOI: 10.3390/ijms25147834.


Translation initiation factor eIF1.2 promotes Toxoplasma stage conversion by regulating levels of key differentiation factors.

Wang F, Holmes M, Hong H, Thaprawat P, Kannan G, Huynh M Nat Commun. 2024; 15(1):4385.

PMID: 38782906 PMC: 11116398. DOI: 10.1038/s41467-024-48685-4.


SPARK regulates AGC kinases central to the asexual cycle.

Herneisen A, Peters M, Smith T, Shortt E, Lourido S bioRxiv. 2023; .

PMID: 37961644 PMC: 10634940. DOI: 10.1101/2023.10.30.564746.

References
1.
Jeffers V, Tampaki Z, Kim K, Sullivan Jr W . A latent ability to persist: differentiation in Toxoplasma gondii. Cell Mol Life Sci. 2018; 75(13):2355-2373. PMC: 5988958. DOI: 10.1007/s00018-018-2808-x. View

2.
Li W, Wang W, Uren P, Penalva L, Smith A . Riborex: fast and flexible identification of differential translation from Ribo-seq data. Bioinformatics. 2017; 33(11):1735-1737. PMC: 5860393. DOI: 10.1093/bioinformatics/btx047. View

3.
Freire E, Sturm N, Campbell D, de Melo Neto O . The Role of Cytoplasmic mRNA Cap-Binding Protein Complexes in Trypanosoma brucei and Other Trypanosomatids. Pathogens. 2017; 6(4). PMC: 5750579. DOI: 10.3390/pathogens6040055. View

4.
Zhang M, Fennell C, Ranford-Cartwright L, Sakthivel R, Gueirard P, Meister S . The Plasmodium eukaryotic initiation factor-2alpha kinase IK2 controls the latency of sporozoites in the mosquito salivary glands. J Exp Med. 2010; 207(7):1465-74. PMC: 2901070. DOI: 10.1084/jem.20091975. View

5.
Huynh M, Carruthers V . Tagging of endogenous genes in a Toxoplasma gondii strain lacking Ku80. Eukaryot Cell. 2009; 8(4):530-9. PMC: 2669203. DOI: 10.1128/EC.00358-08. View