Plasmodium sporozoite excystation involves local breakdown of the oocyst capsule.
Plasmodium sporozoite excystation involves local breakdown of the oocyst capsule.
复制标题
疟原虫子孢子脱囊涉及卵囊被膜的局部破裂。
DOI:
10.1038/s41598-023-49442-1
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发表时间:
2023-12-14
影响因子:
4.6
通讯作者:
Dessens, Johannes
中科院分区:
文献类型:
--
作者:
Saeed, Sadia;Tremp, Annie;Dessens, Johannes
Plasmodium oocysts develop on the abluminal side of the mosquito midgut in relatively small numbers. Oocysts possess an extracellular cell wall—the capsule—to protect them from the insect's haemolymph environment. To further maximise transmission, each oocyst generates hundreds of sporozoites through an asexual multiplication step called sporogony. Completion of transmission requires sporozoite egress from the capsule (excystation), but this process remains poorly understood. In this study, we fused the parasite-encoded capsule protein Cap380 with green fluorescent protein in a transgenic P. berghei line, allowing live fluorescence imaging of capsules throughout sporogony and sporozoite excystation. The results show that capsules progressively weaken during sporulation ultimately resulting in sporozoite exit through small holes. Prior to formation of the holes, local thinning of the capsule was observed. Our findings support an excystation model based on local, rather than global, weakening of the capsule likely facilitated by local re-orientation of sporozoites and apical secretion.
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影响因子:
3.2
作者:
Nakayama K;Kimura Y;Kitahara Y;Soga A;Haraguchi A;Hakozaki J;Sugiyama M;Kusakisako K;Fukumoto S;Ikadai H
通讯作者:
Ikadai H
影响因子:
3
作者:
Orfano AS;Nacif-Pimenta R;Duarte AP;Villegas LM;Rodrigues NB;Pinto LC;Campos KM;Pinilla YT;Chaves B;Barbosa Guerra MG;Monteiro WM;Smith RC;Molina-Cruz A;Lacerda MV;Secundino NF;Jacobs-Lorena M;Barillas-Mury C;Pimenta PF
通讯作者:
Pimenta PF
影响因子:
3
作者:
Douradinha, Bruno;Augustijn, Kevin D.;Thompson, Joanne
通讯作者:
Thompson, Joanne
影响因子:
3.2
作者:
Sasaki H;Sekiguchi H;Sugiyama M;Ikadai H
通讯作者:
Ikadai H
影响因子:
2
作者:
Tremp AZ;Al-Khattaf FS;Dessens JT
通讯作者:
Dessens JT