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THE RETINOID-X RECEPTOR-LIGAND, 9-CIS-RETINOIC ACID, IS A POTENTIAL REGULATOR OF EARLY XENOPUS DEVELOPMENT
被引:76
|作者:
KRAFT, JC
[1
]
SCHUH, T
[1
]
JUCHAU, M
[1
]
KIMELMAN, D
[1
]
机构:
[1] UNIV WASHINGTON,SCH MED,DEPT BIOCHEM SJ-70,SEATTLE,WA 98195
来源:
关键词:
D O I:
10.1073/pnas.91.8.3067
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Endogenous retinoids are potential regulators of vertebrate embryogenesis that have been implicated in early anterior-posterior patterning and limb-bud development. We have characterized the temporal and spatial distribution of 9-cis-retinoic acid in the Xenopus embryo and compared it to two other retinoids, all-trans-retinoic acid and all-trans-retinoyl-beta-glucuronide. 9-cis-Retinoic acid is first detected after the midblastula transition and by the end of gastrulation is localized primarily within the anterior and posterior dorsal regions of the embryo. Since 9-cis-retinoic acid is a 6-fold more potent dysmorphogen than trans-retinoic acid, we suggest that it is involved in the early specification of the Xenopus anterior-posterior axis.
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页码:3067 / 3071
页数:5
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