BMP suppresses WNT to integrate patterning of orthogonal body axes in adult planarians.
BMP suppresses WNT to integrate patterning of orthogonal body axes in adult planarians.
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BMP 抑制 WNT 以整合成年涡虫中正交身体轴的模式。
DOI:
10.1101/2023.01.10.523528
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Petersen,ChristianP
中科院分区:
文献类型:
--
作者:
Clark,EleanorG;Petersen,ChristianP
Adult regeneration restores patterning of orthogonal body axes after damage in a post-embryonic context. Planarians regenerate using distinct body-wide signals primarily regulating each axis dimension: anteroposterior Wnts, dorsoventral BMP, and mediolateral Wnt5 and Slit determinants. How regeneration can coordinate perpendicular tissue axes without symmetry-breaking embryonic events is not fully understood. Here, we report that the planarian dorsoventral regulatorbmp4suppresses the posterior determinantwnt1to provide patterning input to the anteroposterior axis. Double-FISH identified distinct anteroposterior domains within dorsal midline muscle that express eitherbmp4orwnt1. Homeostatic inhibitionbmp4andsmad1expanded thewnt1expression anteriorly, while elevation of BMP signaling throughnog1;nog2RNAi reduced thewnt1expression domain and elevatedbmp4expression. Homeostatic BMP signal perturbation broadly affected anteroposterior identity as measured by expression of posterior Wnt pathway factors, and caused mislocalization of AP-regionalized pharynx progenitors, without strongly affecting expression domains of anterior regulators. Additionally,wnt1inhibition elevatedbmp4expression in the tip of the tail. Therefore, dorsal BMP signals and posteriorwnt1mutually antagonize for patterning the tail. Furthermore, homeostaticbmp4RNAi caused medial expansion of the lateral determinantwnt5and reduced expression of the medial regulatorslit. By contrast,nog1;nog2RNAi restrictedwnt5expression. Double RNAi ofbmp4andwnt5resulted in lateral ectopic eye phenotypes, suggestingbmp4acts upstream ofwnt5to pattern the mediolateral axis. These results indicatebmp4controls dorsoventral information and also, through suppression of Wnt signals, influences anteroposterior and mediolateral identity. Based on related functions across vertebrates and Cnidarians, Wnt and BMP cross-regulation could form an ancient mechanism for coordinating orthogonal axis patterning.
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影响因子:
2.7
作者:
Gurley KA;Elliott SA;Simakov O;Schmidt HA;Holstein TW;Sánchez Alvarado A
通讯作者:
Sánchez Alvarado A
影响因子:
5.6
作者:
Miquel Sureda;E. Pascual;T. Adell
通讯作者:
T. Adell
影响因子:
9.2
作者:
Erik G. Schad;Christian P. Petersen
通讯作者:
Erik G. Schad;Christian P. Petersen
影响因子:
8.8
作者:
Reuter, Hanna;Maerz, Martin;Bartscherer, Kerstin
通讯作者:
Bartscherer, Kerstin
影响因子:
7.3
作者:
Tuazon FB;Mullins MC
通讯作者:
Mullins MC