Toxin, toxin-coregulated pili, and the toxR regulon are essential for Vibrio cholerae pathogenesis in humans.

Toxin, toxin-coregulated pili, and the toxR regulon are essential for Vibrio cholerae pathogenesis in humans.
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毒素,毒素调节的菌毛和毒素调节剂对于人类的弧菌发病机理至关重要。

DOI:
10.1084/jem.168.4.1487
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发表时间:
1988-10-01
影响因子:
15.3
通讯作者:
LEVINE, MM
LEVINE, MM
中科院分区:
医学1区
文献类型:
--
作者:
HERRINGTON, DA;HALL, RH;LOSONSKY, G;MEKALANOS, JJ;TAYLOR, RK;LEVINE, MM

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在志愿者中测试了霍乱弧菌O1的等基因突变株,该株缺乏由toxR控制的遗传调控元件并与毒力有关。编码霍乱毒素A亚基的基因ctxA的缺失突变显著减轻了疾病症状,而不影响肠道定植。编码霍乱毒素阳性调节蛋白的基因toxR的缺失导致定植能力的降低。编码毒素共调节菌毛(由toxR调节)的主要亚基的tcpA的缺失突变,废除了该菌株的定植能力。这些结果首次显示了霍乱弧菌O1在人类肠道定植中的特定菌毛结构的作用,并举例说明了遗传调控在发病机制中的重要性。
Isogenic mutant strains of V. cholerae O1 lacking elements of a genetic regulon controlled by toxR and implicated in virulence were tested in volunteers. A deletion mutation in ctxA, the gene encoding the A subunit of cholera toxin, markedly attenuated disease symptoms without affecting intestinal colonization. Deletion of toxR, the gene encoding the cholera toxin-positive regulatory protein resulted in a diminution in colonizing capacity. A deletion mutation in tcpA, encoding the major subunit of the toxin coregulated pilus (regulated by toxR), abolished the colonizing capacity of this strain. These results show for the first time the role of a specific pilus structure in colonization of the human intestine by V. cholerae O1 and exemplify the significance of a genetic regulon in pathogenesis.
DOI: 10.1093/infdis/145.4.465
发表时间: 1982-01-01
影响因子: 6.4
作者:
CLEMENTS, ML;LEVINE, MM;CRAIG, JP
通讯作者: CRAIG, JP
DOI: 10.1128/iai.36.1.209-214.1982
发表时间: 1982-01-01
影响因子: 3.1
作者:
HANNE, LF;FINKELSTEIN, RA
通讯作者: FINKELSTEIN, RA
DOI: 10.1073/pnas.81.11.3471
发表时间: 1984-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
MILLER, VL;MEKALANOS, JJ
通讯作者: MEKALANOS, JJ
DOI: 10.1128/iai.44.2.439-444.1984
发表时间: 1984-01-01
影响因子: 3.1
作者:
SEARS, SD;RICHARDSON, K;LEVINE, MM
通讯作者: LEVINE, MM
DOI: 10.1016/s0264-410x(88)80019-7
发表时间: 1988-04-01
期刊: VACCINE
影响因子: 5.5
作者:
TAYLOR, R;SHAW, C;MEKALANOS, J
通讯作者: MEKALANOS, J