The cytokine MIF controls daily rhythms of symbiont nutrition in an animal–bacterial association
The cytokine MIF controls daily rhythms of symbiont nutrition in an animal–bacterial association
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细胞因子 MIF 控制动物与细菌协会中共生营养的日常节律
DOI:
10.1073/pnas.2016864117
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Goldman, William
中科院分区:
文献类型:
--
作者:
Koch, Eric J.;Bongrand, Clotilde;Bennett, Brittany D.;Lawhorn, Susannah;Moriano-Gutierrez, Silvia;Pende, Marko;Vadiwala, Karim;Dodt, Hans-Ulrich;Raible, Florian;Goldman, William
The recent recognition that many symbioses exhibit daily rhythms has encouraged research into the partner dialogue that drives these biological oscillations. Here we characterized the pivotal role of the versatile cytokine macrophage migration inhibitory factor (MIF) in regulating a metabolic rhythm in the model light-organ symbiosis betweenEuprymna scolopesandVibrio fischeri. As the juvenile host matures, it develops complex daily rhythms characterized by profound changes in the association, from gene expression to behavior. One such rhythm is a diurnal shift in symbiont metabolism triggered by the periodic provision of a specific nutrient by the mature host: each night the symbionts catabolize chitin released from hemocytes (phagocytic immune cells) that traffic into the light-organ crypts, where the population ofV. fischericells resides. Nocturnal migration of these macrophage-like cells, together with identification of anE. scolopesMIF (EsMIF) in the light-organ transcriptome, led us to ask whether EsMIF might be the gatekeeper controlling the periodic movement of the hemocytes. Western blots, ELISAs, and confocal immunocytochemistry showed EsMIF was at highest abundance in the light organ. Its concentration there was lowest at night, when hemocytes entered the crypts. EsMIF inhibited migration of isolated hemocytes, whereas exported bacterial products, including peptidoglycan derivatives and secreted chitin catabolites, induced migration. These results provide evidence that the nocturnal decrease in EsMIF concentration permits the hemocytes to be drawn into the crypts, delivering chitin. This nutritional function for a cytokine offers the basis for the diurnal rhythms underlying a dynamic symbiotic conversation.
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影响因子:
1.8
作者:
G. Grünig;U. Witschi;C. Winder;M. Hermann;R. von Fellenberg
通讯作者:
R. von Fellenberg
DOI:
10.1073/pnas.93.24.13683
发表时间:
1996
影响因子:
11.1
作者:
V. Weis;A. Small;M. McFall
通讯作者:
M. McFall
DOI:
--
发表时间:
2017
期刊:
Der Internist
影响因子:
--
作者:
Dr. P. R. Steinhagen;P. D. D. C. Baumgart
通讯作者:
P. D. D. C. Baumgart
影响因子:
3.8
作者:
H. Sashinami;Hirotake Sakuraba;Y. Ishiguro;Akihiro Munakata;J. Nishihira;Akio Nakane
通讯作者:
Akio Nakane
影响因子:
4.8
作者:
M. Montgomery;M. McFall
通讯作者:
M. McFall