High speed, three-dimensional imaging reveals chemotactic behavior specific to human-infective Leishmania parasites
High speed, three-dimensional imaging reveals chemotactic behavior specific to human-infective Leishmania parasites
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高速三维成像揭示了人类感染性利什曼原虫寄生虫特有的趋化行为
DOI:
10.1101/2020.07.30.220541
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Findlay R
中科院分区:
文献类型:
--
作者:
Findlay R
Cellular motility is an ancient eukaryotic trait, ubiquitous across phyla with roles in predator avoidance, resource access, and competition. Flagellar motility is seen in various parasitic protozoans, and morphological changes in flagella during the parasite life cycle have been observed. We studied the impact of these changes on motility across life cycle stages, and how such changes might serve to facilitate human infection. We used holographic microscopy to image swimming cells of differentLeishmania mexicanalife cycle stages in three dimensions. We find that the human-infective (metacyclic promastigote) forms display ‘run and tumble’ behaviour in the absence of stimulus, reminiscent of bacterial motion, and that they specifically modify swimming direction and speed to target host immune cells in response to a macrophage-derived stimulus. Non-infective (procyclic promastigote) cells swim more slowly, along meandering helical paths. These findings demonstrate adaptation of swimming phenotype and chemotaxis towards human cells.
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影响因子:
19
作者:
Singh, Dhruv P.;Uspal, William E.;Fischer, Peer
通讯作者:
Fischer, Peer
影响因子:
3.4
作者:
L. Turner;L. Ping;Marianna Neubauer;H. Berg
通讯作者:
L. Turner;L. Ping;Marianna Neubauer;H. Berg
影响因子:
3.7
作者:
Taktikos J;Stark H;Zaburdaev V
通讯作者:
Zaburdaev V
DOI:
10.1101/476994
发表时间:
2018
期刊:
--
影响因子:
--
作者:
Beneke T
通讯作者:
Beneke T
DOI:
10.1016/0035-9203(60)90057-2
发表时间:
1960-01-01
期刊:
TRANS ROY SOC TROP MED AND HYG
影响因子:
--
作者:
PULVERTAFT, R. J. V.;HOYLE, G. F.
通讯作者:
HOYLE, G. F.