Development of Cell-Based Sentinels for Nitric Oxide: Ensuring Marker Expression and Unimodality.
Development of Cell-Based Sentinels for Nitric Oxide: Ensuring Marker Expression and Unimodality.
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基于细胞的一氧化氮哨兵的开发:确保标记表达和单峰性。
DOI:
10.1021/acssynbio.8b00146
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发表时间:
2018
影响因子:
4.7
通讯作者:
Bentley,WilliamE
中科院分区:
文献类型:
--
作者:
McKay,Ryan;Hauk,Pricila;Quan,David;Bentley,WilliamE
We generated “sentinel” bacteria that respond to the biomarker nitric oxide (NO) and produce a homogeneous and strong fluorescent response. Our dual-plasmid system consists of a signal “relay” vector that employs an NO-responsive promoter that amplifies the native signal (via expression of T7 Polymerase (T7Pol)) to a second vector responsible for GFP expression. Importantly, to achieve an optimal “sentinel” response, we developed strategies that balance the transcriptional load within cells by altering (i) translation and (ii) activity of the T7Pol. Our optimized genetic circuitry was then used to transform commensalE. coliNissle, as a proof-of-concept toward an ingestible cell-based sensor for Crohn’s disease (CD) that, in turn, is marked by elevated levels of intestinal NO. Thus, the “biosensors” demonstrated here may serve as a simple diagnostic tool, contrasting the standard of care including colonoscopies or biopsies.
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影响因子:
2.2
作者:
M. Schultz;Sonja Watzl;T. Oelschlaeger;H. Rath;C. Göttl;N. Lehn;J. Schölmerich;H. Linde
通讯作者:
M. Schultz;Sonja Watzl;T. Oelschlaeger;H. Rath;C. Göttl;N. Lehn;J. Schölmerich;H. Linde
影响因子:
3.2
作者:
A. L. Vignoli;R. Srivastava;A. Stammati;Laura Turco;M. Tanori;F. Zucco
通讯作者:
F. Zucco
影响因子:
3.2
作者:
DONG, HJ;NILSSON, L;KURLAND, CG
通讯作者:
KURLAND, CG
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
DOI:
--
发表时间:
1991
期刊:
Molecular and General Genetics MGG
影响因子:
--
作者:
S. Vasudevan;W. Armarego;Denis C. Shawl;P. E. Lilley;N. Dixon;R. Poole
通讯作者:
R. Poole