En1 and Lmx1b do not recapitulate embryonic dorsal-ventral limb patterning functions during mouse digit tip regeneration.
En1 and Lmx1b do not recapitulate embryonic dorsal-ventral limb patterning functions during mouse digit tip regeneration.
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DOI:
10.1016/j.celrep.2022.111701
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发表时间:
2022-11-22
期刊:
影响因子:
8.8
通讯作者:
中科院分区:
文献类型:
--
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The mouse digit tip regenerates following amputation. How the regenerate is patterned is unknown, but a long-standing hypothesis proposes developmental patterning mechanisms are re-used during regeneration. The digit tip bone exhibits dorsal-ventral (DV) polarity, so we focus on En1 and Lmx1b, two factors necessary for DV patterning during limb development. We investigate whether they are re-expressed during regeneration in a developmental-like pattern and whether they direct DV morphology of the regenerate. We find that both En1 and Lmx1b are expressed in the regenerating digit tip epithelium and mesenchyme, respectively, but without DV polarity. Conditional genetics and quantitative analysis of digit tip bone morphology determine that genetic deletion of En1 or Lmx1b in adult digit tip regeneration modestly reduces bone regeneration but does not affect DV patterning. Collectively, our data suggest that, while En1 and Lmx1b are re-expressed during mouse digit tip regeneration, they do not define the DV axis during regeneration. Johnson et al. find dorsal-ventral (DV) genes En1 and Lmx1b are expressed in regenerating mouse digit tips, but without DV polarity. Conditional genetics and bone morphology analyses indicate En1 or Lmx1b do not alter regenerated digit DV patterning, refuting the hypothesis that embryonic limb patterning pathways are re-used during regeneration.
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影响因子:
2.7
作者:
Endo, T;Tamura, K;Ide, H
通讯作者:
Ide, H
DOI:
10.1126/science.aaq0681
发表时间:
2018-10-26
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Gerber T;Murawala P;Knapp D;Masselink W;Schuez M;Hermann S;Gac-Santel M;Nowoshilow S;Kageyama J;Khattak S;Currie JD;Camp JG;Tanaka EM;Treutlein B
通讯作者:
Treutlein B
影响因子:
2.7
作者:
Fernando WA;Leininger E;Simkin J;Li N;Malcom CA;Sathyamoorthi S;Han M;Muneoka K
通讯作者:
Muneoka K
DOI:
10.1007/bf00399054
发表时间:
1990-01-01
期刊:
ROUXS ARCHIVES OF DEVELOPMENTAL BIOLOGY
影响因子:
--
作者:
BOILLY, B;ALBERT, P
通讯作者:
ALBERT, P
DOI:
10.1242/dev.199158
发表时间:
2021-06-01
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Aztekin C;Hiscock TW;Gurdon J;Jullien J;Marioni J;Simons BD
通讯作者:
Simons BD