Cellular barcoding of protozoan pathogens reveals the within-host population dynamics of Toxoplasma gondii host colonization
Cellular barcoding of protozoan pathogens reveals the within-host population dynamics of Toxoplasma gondii host colonization
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原生动物病原体的细胞条形码揭示了弓形虫宿主定植的宿主内群体动态
DOI:
10.1101/2020.08.06.239822
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Wincott C
中科院分区:
文献类型:
--
作者:
Wincott C
Cellular barcoding techniques are powerful tools to understand microbial pathogenesis. However, barcoding strategies have not been broadly applied to protozoan parasites, which have unique genomic structures and virulence strategies compared with viral and bacterial pathogens. Here, we present a CRISPR-based method to barcode protozoa, which we successfully apply toToxoplasma gondiiandTrypanosoma brucei. Using libraries of barcodedT. gondii, we evaluate shifts in the population structure from acute to chronic infection of mice. Contrary to expectation, most barcodes were present in the brain one month post-intraperitoneal infection in both inbred CBA/J and outbred Swiss mice. Although parasite cyst number and barcode diversity declined over time, barcodes representing a minor fraction of the inoculum could become a dominant population in the brain by three months post-infection. These data establish a cellular barcoding approach for protozoa and evidence that the blood-brain barrier is not a major bottleneck to colonization byT. gondii.
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影响因子:
9.8
作者:
Grant AJ;Restif O;McKinley TJ;Sheppard M;Maskell DJ;Mastroeni P
通讯作者:
Mastroeni P
影响因子:
6.7
作者:
Sinden RE
通讯作者:
Sinden RE
影响因子:
2.1
作者:
G. Watson;P. Davis
通讯作者:
G. Watson;P. Davis
DOI:
10.1073/pnas.92.12.5749
发表时间:
1995-06-06
影响因子:
11.1
作者:
DONALD, RGK;ROOS, DS
通讯作者:
ROOS, DS
影响因子:
158.5
作者:
LUFT, BJ;HAFNER, R;REMINGTON, JS
通讯作者:
REMINGTON, JS