Optimality in the development of intestinal crypts.
Optimality in the development of intestinal crypts.
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DOI:
10.1016/j.cell.2011.12.025
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发表时间:
2012-02-03
期刊:
影响因子:
64.5
通讯作者:
van Oudenaarden A
中科院分区:
文献类型:
--
作者:
Itzkovitz S;Blat IC;Jacks T;Clevers H;van Oudenaarden A
Intestinal crypts in mammals are comprised of long-lived stem cells and shorter-lived progenies. These two populations are maintained in specific proportions during adult life. Here, we investigate the design principles governing the dynamics of these proportions during crypt morphogenesis. Using optimal control theory, we show that a proliferation strategy known as a “bang-bang” control minimizes the time to obtain a mature crypt. This strategy consists of a surge of symmetric stem cell divisions, establishing the entire stem cell pool first, followed by a sharp transition to strictly asymmetric stem cell divisions, producing nonstem cells with a delay. We validate these predictions using lineage tracing and single-molecule fluorescence in situ hybridization of intestinal crypts in infant mice, uncovering small crypts that are entirely composed of Lgr5-labeled stem cells, which become a minority as crypts continue to grow. Our approach can be used to uncover similar design principles in other developmental systems.
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影响因子:
64.8
作者:
Morrison, Sean J.;Kimble, Judith
通讯作者:
Kimble, Judith
DOI:
10.1007/bf02932850
发表时间:
1982-01-01
期刊:
VIRCHOWS ARCHIV B-CELL PATHOLOGY INCLUDING MOLECULAR PATHOLOGY
影响因子:
--
作者:
ALNAFUSSI, AI;WRIGHT, NA
通讯作者:
WRIGHT, NA
影响因子:
25
作者:
Madisen L;Zwingman TA;Sunkin SM;Oh SW;Zariwala HA;Gu H;Ng LL;Palmiter RD;Hawrylycz MJ;Jones AR;Lein ES;Zeng H
通讯作者:
Zeng H
影响因子:
2
作者:
Michor, F;Frank, SA;Nowak, MA
通讯作者:
Nowak, MA
影响因子:
2.3
作者:
MACEVICZ, S;OSTER, G
通讯作者:
OSTER, G