Abstract:
:Migrating cells are guided in complex environments mainly by chemotaxis or structural cues presented by the surrounding tissue. During transmission of malaria, parasite motility in the skin is important for Plasmodium sporozoites to reach the blood circulation. Here we show that sporozoite migration varies in different skin environments the parasite encounters at the arbitrary sites of the mosquito bite. In order to systematically examine how sporozoite migration depends on the structure of the environment, we studied it in micro-fabricated obstacle arrays. The trajectories observed in vivo and in vitro closely resemble each other suggesting that structural constraints can be sufficient to guide Plasmodium sporozoites in complex environments. Sporozoite speed in different environments is optimized for migration and correlates with persistence length and dispersal. However, this correlation breaks down in mutant sporozoites that show adhesion impairment due to the lack of TRAP-like protein (TLP) on their surfaces. This may explain their delay in infecting the host. The flexibility of sporozoite adaption to different environments and a favorable speed for optimal dispersal ensures efficient host switching during malaria transmission.
journal_name
PLoS Pathogjournal_title
PLoS pathogensauthors
Hellmann JK,Münter S,Kudryashev M,Schulz S,Heiss K,Müller AK,Matuschewski K,Spatz JP,Schwarz US,Frischknecht Fdoi
10.1371/journal.ppat.1002080subject
Has Abstractpub_date
2011-06-01 00:00:00pages
e1002080issue
6eissn
1553-7366issn
1553-7374pii
PPATHOGENS-D-10-00339journal_volume
7pub_type
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