Menadione (vitamin K3) is a catabolic product of oral phylloquinone (vitamin K1) in the intestine and a circulating precursor of tissue menaquinone-4 (vitamin K2) in rats

Yoshihisa Hirota, Naoko Tsugawa, Kimie Nakagawa, Yoshitomo Suhara, Kiyoshi Tanaka, Yuri Uchino, Atsuko Takeuchi, Natsumi Sawada, Maya Kamao, Akimori Wada, Takashi Okitsu, Toshio Okano

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Mice have the ability to convert dietary phylloquinone (vitamin K 1) into menaquinone-4 (vitamin K2) and store the latter in tissues. A prenyltransferase enzyme, UbiA prenyltransferase domain-containing 1 (UBIAD1), is involved in this conversion. There is evidence that UBIAD1 has a weak side chain cleavage activity for phylloquinone but a strong prenylation activity for menadione (vitamin K3), which has long been postulated as an intermediate in this conversion. Further evidence indicates that when intravenously administered in mice phylloquinone can enter into tissues but is not converted further to menaquinone-4. These findings raise the question whether phylloquinone is absorbed and delivered to tissues in its original form and converted to menaquinone-4 or whether it is converted to menadione in the intestine followed by delivery of menadione to tissues and subsequent conversion to menaquinone-4. To answer this question, we conducted cannulation experiments using stable isotope tracer technology in rats. We confirmed that the second pathway is correct on the basis of structural assignments and measurements of phylloquinone-derived menadione using high resolution MS analysis and a bioassay using recombinant UBIAD1 protein. Furthermore, high resolution MS and 1H NMR analyses of the product generated from the incubation of menadione with recombinant UBIAD1 revealed that the hydroquinone, but not the quinone form of menadione, was an intermediate of the conversion. Taken together, these results provide unequivocal evidence that menadione is a catabolic product of oral phylloquinone and a major source of tissue menaquinone-4.

Original languageEnglish
Pages (from-to)33071-33080
Number of pages10
JournalJournal of Biological Chemistry
Volume288
Issue number46
DOIs
Publication statusPublished - 2013 Nov 15
Externally publishedYes

Fingerprint

Vitamin K 1
Vitamin K 3
Vitamin K 2
Dimethylallyltranstransferase
Rats
Tissue
menatetrenone
Bioassay
Isotopes
Nuclear magnetic resonance

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Molecular Biology
  • Medicine(all)

Cite this

Menadione (vitamin K3) is a catabolic product of oral phylloquinone (vitamin K1) in the intestine and a circulating precursor of tissue menaquinone-4 (vitamin K2) in rats. / Hirota, Yoshihisa; Tsugawa, Naoko; Nakagawa, Kimie; Suhara, Yoshitomo; Tanaka, Kiyoshi; Uchino, Yuri; Takeuchi, Atsuko; Sawada, Natsumi; Kamao, Maya; Wada, Akimori; Okitsu, Takashi; Okano, Toshio.

In: Journal of Biological Chemistry, Vol. 288, No. 46, 15.11.2013, p. 33071-33080.

Research output: Contribution to journalArticle

Hirota, Yoshihisa ; Tsugawa, Naoko ; Nakagawa, Kimie ; Suhara, Yoshitomo ; Tanaka, Kiyoshi ; Uchino, Yuri ; Takeuchi, Atsuko ; Sawada, Natsumi ; Kamao, Maya ; Wada, Akimori ; Okitsu, Takashi ; Okano, Toshio. / Menadione (vitamin K3) is a catabolic product of oral phylloquinone (vitamin K1) in the intestine and a circulating precursor of tissue menaquinone-4 (vitamin K2) in rats. In: Journal of Biological Chemistry. 2013 ; Vol. 288, No. 46. pp. 33071-33080.
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AU - Sawada, Natsumi

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