A pathogenicity locus of Streptococcus gallolyticus subspecies gallolyticus.
A pathogenicity locus of Streptococcus gallolyticus subspecies gallolyticus.
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DOI:
10.1038/s41598-023-33178-z
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发表时间:
2023-04-18
影响因子:
4.6
通讯作者:
Xu, Yi
中科院分区:
文献类型:
--
作者:
Taylor, John Culver;Kumar, Ritesh;Xu, Juan;Xu, Yi
Streptococcus gallolyticus subspecies gallolyticus (Sgg) is known to be strongly associated with colorectal cancer (CRC). Recent functional studies further demonstrated that Sgg actively stimulates CRC cell proliferation and promotes the development of colon tumors. However, the Sgg factors important for the pro-proliferative and pro-tumor activities of Sgg remain unclear. Here, we identified a chromosomal locus in Sgg strain TX20005. Deletion of this locus significantly reduced Sgg adherence to CRC cells and abrogated the ability of Sgg to stimulate CRC cell proliferation. Thus, we designate this locus as the Sgg pathogenicity-associated region (SPAR). More importantly, we found that SPAR is important for Sgg pathogenicity in vivo. In a gut colonization model, mice exposed to the SPAR deletion mutant showed significantly reduced Sgg load in the colonic tissues and fecal materials, suggesting that SPAR contributes to the colonization capacity of Sgg. In a mouse model of CRC, deletion of SPAR abolished the ability of Sgg to promote the development of colon tumors growth. Taken together, these results highlight SPAR as a critical pathogenicity determinant of Sgg.
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影响因子:
6.4
作者:
Danne, Camille;Entenza, Jose M.;Dramsi, Shaynoor
通讯作者:
Dramsi, Shaynoor
影响因子:
5.6
作者:
Klein TA;Pazos M;Surette MG;Vollmer W;Whitney JC
通讯作者:
Whitney JC
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4.5
作者:
Chatterjee A;Willett JLE;Dunny GM;Duerkop BA
通讯作者:
Duerkop BA
DOI:
10.16288/j.yczz.20-245
发表时间:
2021-01-01
期刊:
Yichuan
影响因子:
--
作者:
Liu, Guofang;Wang, Xinxin;Lu, Guangtao
通讯作者:
Lu, Guangtao
影响因子:
--
作者:
Gold, JS;Bayar, S;Salem, RR
通讯作者:
Salem, RR