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UBIAD1 Plays an Essential Role in the Survival of Pancreatic Acinar Cells

by Suhara, Yoshitomo , Hasegawa, Hiroshi , Okano, Toshio , Kunitou, Yumi , Murakami, Chinami , Ichinose, Chihiro , Fujiwara, Kiyomi , Nakagawa, Kimie , Nishimura, Akihiro , Kawamoto, Kanaha

in Adipocytes / Apoptosis / Autophagy / Enzymes / Insulin / Kinases / Liver cancer / Oxidative stress / Pancreas / Proteins / Rodents / Stem cells

2019

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UBIAD1 Plays an Essential Role in the Survival of Pancreatic Acinar Cells

by Suhara, Yoshitomo , Hasegawa, Hiroshi , Okano, Toshio , Kunitou, Yumi , Murakami, Chinami , Ichinose, Chihiro , Fujiwara, Kiyomi , Nakagawa, Kimie , Nishimura, Akihiro , Kawamoto, Kanaha

in Adipocytes / Apoptosis / Autophagy / Enzymes / Insulin / Kinases / Liver cancer / Oxidative stress / Pancreas / Proteins / Rodents / Stem cells

2019

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UBIAD1 Plays an Essential Role in the Survival of Pancreatic Acinar Cells

by Suhara, Yoshitomo , Hasegawa, Hiroshi , Okano, Toshio , Kunitou, Yumi , Murakami, Chinami , Ichinose, Chihiro , Fujiwara, Kiyomi , Nakagawa, Kimie , Nishimura, Akihiro , Kawamoto, Kanaha

in Adipocytes / Apoptosis / Autophagy / Enzymes / Insulin / Kinases / Liver cancer / Oxidative stress / Pancreas / Proteins / Rodents / Stem cells

2019

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Journal Article

UBIAD1 Plays an Essential Role in the Survival of Pancreatic Acinar Cells

Suhara, Yoshitomo,

Hasegawa, Hiroshi,

Okano, Toshio,

Kunitou, Yumi,

Murakami, Chinami,

Ichinose, Chihiro,

Fujiwara, Kiyomi,

Nakagawa, Kimie,

Nishimura, Akihiro,

Kawamoto, Kanaha

2019

Overview

UbiA prenyltransferase domain-containing protein 1 (UBIAD1) is a vitamin K2 biosynthetic enzyme. We previously showed the lethality of this enzyme in UBIAD1 knockout mice during the embryonic stage. However, the biological effects of UBIAD1 deficiency after birth remain unclear. In the present study, we used a tamoxifen-inducible systemic UBIAD1 knockout mouse model to determine the role of UBIAD1 in adult mice. UBIAD1 knockout resulted in the death of the mice within about 60 days of administration of tamoxifen. The pancreas presented with the most prominent abnormality in the tamoxifen-induced UBIAD1 knockout mice. The pancreas was reduced remarkably in size; furthermore, the pancreatic acinar cells disappeared and were replaced by vacuoles. Further analysis revealed that the vacuoles were adipocytes. UBIAD1 deficiency in the pancreatic acinar cells caused an increase in oxidative stress and autophagy, leading to apoptotic cell death in the tamoxifen-induced UBIAD 1 knockout mice. These results indicate that UBIAD1 is essential for maintaining the survival of pancreatic acinar cells in the pancreas.

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Publisher

MDPI AG,MDPI

Subject

Adipocytes

/ Apoptosis

/ Autophagy

/ Enzymes

/ Insulin

/ Kinases

/ Liver cancer