Abnormal liver differentiation and excessive angiogenesis in mice lacking Runx3.

Jong Min Lee, Dong Joon Lee, Suk Chul Bae, Hansung Jung

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Runt-related transcription factor 3 (Runx3) is essential for normal mouse development, and Runx3 knock-out (KO) mice (FVB strain), which die within 24 h after birth, show various organ defects, such as lung hyperplasia. For proper early liver development, angiogenesis and liver cell differentiation mechanisms are necessary in mammals. Previous studies have reported that various signaling molecules, such as vascular endothelial growth factor (VEGF), von Willebrand factor (vWF) and cluster of differentiation 31 (CD31), are closely related to angiogenesis in the developing liver. Proper expression levels of molecules that induce liver cell differentiation, such as phosphorylated Smad2 (pSmad2), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB), Wilms tumor-1 (WT-1) and CD90 (Thy-1), are necessary for fetal liver development. To confirm the pathogenesis of liver defects caused by the loss of function of Runx3, the localization of proliferating cells was examined in wild-type and Runx3 KO mouse livers at postnatal day 1 (PN1). Specimens were also stained for various liver differentiation markers to confirm the function of Runx3. Moreover, gene expression level was examined by real-time quantitative polymerase chain reaction (RT-qPCR). Our results indicate that VEGF, vWF, CD31, pSmad2, NF-kB, WT-1 and Thy-1 were markedly up-regulated by the loss of Runx3. Therefore, our results indicate that liver development is controlled by Runx3. Clarifying the mechanisms of angiogenesis and liver differentiation might aid in the design of efficient and safe antiangiogenic therapy and gene therapy for liver disorders.

Original languageEnglish
Pages (from-to)751-758
Number of pages8
JournalHistochemistry and cell biology
Volume139
Issue number5
DOIs
Publication statusPublished - 2013 Jan 1

Fingerprint

Liver
Wilms Tumor
NF-kappa B
von Willebrand Factor
Knockout Mice
Vascular Endothelial Growth Factor A
Cell Differentiation
Transcription Factor 3
Differentiation Antigens
Fetal Development
Genetic Therapy
Hyperplasia
Real-Time Polymerase Chain Reaction
Mammals
B-Lymphocytes
Parturition
Gene Expression
Light
Lung

All Science Journal Classification (ASJC) codes

  • Histology
  • Molecular Biology
  • Medical Laboratory Technology
  • Cell Biology

Cite this

Lee, Jong Min ; Lee, Dong Joon ; Bae, Suk Chul ; Jung, Hansung. / Abnormal liver differentiation and excessive angiogenesis in mice lacking Runx3. In: Histochemistry and cell biology. 2013 ; Vol. 139, No. 5. pp. 751-758.
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Abnormal liver differentiation and excessive angiogenesis in mice lacking Runx3. / Lee, Jong Min; Lee, Dong Joon; Bae, Suk Chul; Jung, Hansung.

In: Histochemistry and cell biology, Vol. 139, No. 5, 01.01.2013, p. 751-758.

Research output: Contribution to journalArticle

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