Local association of Trypanosoma cruzi chronic infection foci and enteric neuropathic lesions at the tissue micro-domain scale
Local association of Trypanosoma cruzi chronic infection foci and enteric neuropathic lesions at the tissue micro-domain scale
复制标题
组织微域尺度上克氏锥虫慢性感染病灶与肠神经病变的局部关联
DOI:
10.1101/2021.03.09.434577
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Khan A
中科院分区:
文献类型:
--
作者:
Khan A
Digestive Chagas disease (DCD) is an enteric neuropathy caused byTrypanosoma cruziinfection. The mechanism of pathogenesis is poorly understood and the lack of a robust, predictive animal model has held back research. We screened a series of mouse models using gastrointestinal tracer assays andin vivoinfection imaging systems to discover a subset exhibiting chronic digestive transit dysfunction and significant retention of faeces in both sated and fasted conditions. The colon was a specific site of both tissue parasite persistence, delayed transit and dramatic loss of myenteric neurons as revealed by whole-mount immunofluorescence analysis. DCD mice therefore recapitulated key clinical manifestations of human disease. We also exploited dual reporter transgenic parasites to home in on locations of rare chronic infection foci in the colon byex vivobioluminescence imaging and then used fluorescence imaging in tissue microdomains to reveal co-localisation of infection and enteric nervous system lesions. This indicates that long-termT.cruzi-host interactions in the colon drive DCD pathogenesis, suggesting that the efficacy of anti-parasitic chemotherapy against chronic disease progression warrants further pre-clinical investigation.
登录
查看更多内容
影响因子:
15.9
作者:
Laranjeira, Catia;Sandgren, Katarina;Pachnis, Vassilis
通讯作者:
Pachnis, Vassilis
DOI:
10.1007/s00018-017-2693-8
发表时间:
2018-01
期刊:
Cellular and molecular life sciences : CMLS
影响因子:
--
作者:
Hugenholtz F;de Vos WM
通讯作者:
de Vos WM
影响因子:
32.4
作者:
Yoo BB;Mazmanian SK
通讯作者:
Mazmanian SK
DOI:
10.4269/ajtmh.2001.65.435
发表时间:
2001-11-01
影响因子:
3.3
作者:
Lages-Silva, E;Crema, E;Chiari, E
通讯作者:
Chiari, E
DOI:
10.1590/s0074-02762006000700005
发表时间:
2006-11-01
期刊:
Memórias do Instituto Oswaldo Cruz
影响因子:
--
作者:
Sánchez-Guillén, María del Carmen;López-Colombo, Aurelio;Pérez-Fuentes, Ricardo
通讯作者:
Pérez-Fuentes, Ricardo