The retinoic acid-inactivating enzyme CYP26 is essential for establishing an uneven distribution of retinoic acid along the anterio-posterior axis within the mouse embryo

Yasuo Sakai, Chikara Meno, Hideta Fujii, Jinsuke Nishino, Hidetaka Shiratori, Yukio Saijoh, Janet Rossant, Hiroshi Hamada

Research output: Contribution to journalArticle

317 Citations (Scopus)

Abstract

Retinoic acid (RA), a derivative of vitamin A, plays a pivotal role in vertebrate development. The level of RA may be determined by the balance between its synthesis and degradation. We have examined the role of CYP26, a P450 enzyme that may degrade RA, by generating mutant mice that lack CYP26. CYP26-/- mice exhibited anomalies, including caudal agenesis, similar to those induced by administration of excess RA. The concentration of endogenous RA, as revealed by marker gene activity, was markedly increased in the tailbud of the mutant animals, in which CYP26 is normally expressed. Expression of T (Brachyury) and Wnt3a in the tailbud was down-regulated in CYP26-/- mice, which may underlie the caudal truncation. The lack of CYP26 also resulted in homeotic transformation of vertebrae as well as in misspecification of the rostral hindbrain associated with anterior expansion of RA-positive domains. These results suggest that local degradation of RA by CYP26 is required for establishing an uneven distribution of RA along the anterio-posterior axis, which is essential for patterning the hindbrain, vertebrae, and tailbud.

Original languageEnglish
Pages (from-to)213-225
Number of pages13
JournalGenes and Development
Volume15
Issue number2
DOIs
Publication statusPublished - Jan 15 2001
Externally publishedYes

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Tretinoin
Embryonic Structures
Rhombencephalon
Spine
Cytochrome P450 Family 26
Vitamin A
Cytochrome P-450 Enzyme System
Vertebrates
Genes

All Science Journal Classification (ASJC) codes

  • Genetics
  • Developmental Biology

Cite this

The retinoic acid-inactivating enzyme CYP26 is essential for establishing an uneven distribution of retinoic acid along the anterio-posterior axis within the mouse embryo. / Sakai, Yasuo; Meno, Chikara; Fujii, Hideta; Nishino, Jinsuke; Shiratori, Hidetaka; Saijoh, Yukio; Rossant, Janet; Hamada, Hiroshi.

In: Genes and Development, Vol. 15, No. 2, 15.01.2001, p. 213-225.

Research output: Contribution to journalArticle

Sakai, Yasuo ; Meno, Chikara ; Fujii, Hideta ; Nishino, Jinsuke ; Shiratori, Hidetaka ; Saijoh, Yukio ; Rossant, Janet ; Hamada, Hiroshi. / The retinoic acid-inactivating enzyme CYP26 is essential for establishing an uneven distribution of retinoic acid along the anterio-posterior axis within the mouse embryo. In: Genes and Development. 2001 ; Vol. 15, No. 2. pp. 213-225.
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