X Zhang
The effect of normal human serum on the mouse trypanosome Trypanosoma musculi in vitro and in vivo
Zhang, X; Hong, X-K; Li, S-J; Lai, D-H; Hide, G; Lun, Z-R; Wen, Y-Z
Abstract
Trypanosoma musculi, a common blood flagellate found in mice, is similar in morphology and life cycle to the rat trypanosome T. lewisi. Both species belong to the subgenus Herpetosoma, and as T. lewisi has recently been shown to be a zoonotic pathogen, there is concern that T. musculi could also be potentially infective to humans. To test this hypothesis, a well-established method, the normal human serum (NHS) incubation test, was carried out which distinguishes human and non-human infective trypanosomes. We found that T. musculi could grow in 0.31% NHS in vitro, and even kept their infectivity to mice after incubation with 10% NHS for 24 h. In in vivo experiments, T. musculi were only slightly affected by NHS injection, confirming that it was less sensitive to the NHS than T. b. brucei, but more sensitive than T. lewisi. This resistance probably does not rely on a restricted uptake of ApoL-1. Due to this partial resistance, we cannot definitively confirm that T. musculi has the potential for infection to humans. As resistance is less than that of T. lewisi, our data suggest that it is unlikely to be a zoonotic pathogen although we would advise caution in the case of immunocompromised people such as AIDS and cancer patients.
Citation
Zhang, X., Hong, X., Li, S., Lai, D., Hide, G., Lun, Z., & Wen, Y. (2018). The effect of normal human serum on the mouse trypanosome Trypanosoma musculi in vitro and in vivo. Experimental Parasitology, 184, 115-120. https://doi.org/10.1016/j.exppara.2017.12.005
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 11, 2017 |
Online Publication Date | Dec 13, 2017 |
Publication Date | Jan 1, 2018 |
Deposit Date | Jan 26, 2018 |
Publicly Available Date | Dec 13, 2018 |
Journal | Experimental parasitology |
Print ISSN | 0014-4894 |
Publisher | Elsevier |
Volume | 184 |
Pages | 115-120 |
DOI | https://doi.org/10.1016/j.exppara.2017.12.005 |
Publisher URL | http://dx.doi.org/10.1016/j.exppara.2017.12.005 |
Related Public URLs | https://www.journals.elsevier.com/experimental-parasitology |
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