Pulsatile stimulation determines timing and specificity of NF-kappaB-dependent transcription.
Pulsatile stimulation determines timing and specificity of NF-kappaB-dependent transcription.
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脉冲刺激决定了NF-kappab依赖性转录的时间和特异性。
DOI:
10.1126/science.1164860
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发表时间:
2009-04-10
期刊:
影响因子:
--
通讯作者:
White MR
中科院分区:
文献类型:
--
作者:
Ashall L;Horton CA;Nelson DE;Paszek P;Harper CV;Sillitoe K;Ryan S;Spiller DG;Unitt JF;Broomhead DS;Kell DB;Rand DA;Sée V;White MR
The Nuclear Factor kappa B (NF-κB) transcription factor regulates cellular stress responses and the immune response to infection. NF-κB activation results in oscillations in nuclear NF-κB abundance. To define the function of these oscillations, we treated cells with repeated short pulses of tumor necrosis factor alpha (TNFα) at various intervals to mimic pulsatile inflammatory signals. At all pulse intervals analyzed, we observed synchronous cycles of NF-κB nuclear translocation. Lower frequency stimulations gave repeated full-amplitude translocations, whereas higher frequency pulses, gave reduced translocation, indicating a failure to reset. Deterministic and stochastic mathematical models predicted how negative feedback loops regulate both the resetting of the system and cellular heterogeneity. Altering the stimulation intervals gave different patterns of NF-κB-dependent gene expression, supporting a functional role for oscillation frequency.
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DOI:
10.1049/ip-syb:20050050
发表时间:
2005-09-01
期刊:
IEE PROCEEDINGS SYSTEMS BIOLOGY
影响因子:
--
作者:
Ihekwaba, AEC;Broomhead, DS;Kell, DB
通讯作者:
Kell, DB
影响因子:
30.8
作者:
Lahav, G;Rosenfeld, N;Alon, U
通讯作者:
Alon, U
影响因子:
64.8
作者:
Cai, Long;Dalal, Chiraj K.;Elowitz, Michael B.
通讯作者:
Elowitz, Michael B.
影响因子:
64.8
作者:
Trompouki, E;Hatzivassiliou, E;Mosialos, G
通讯作者:
Mosialos, G
DOI:
10.1038/nri2337
发表时间:
2008-07
期刊:
Nature reviews. Immunology
影响因子:
--
作者:
Sun SC
通讯作者:
Sun SC