Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).

Frizzled 6 (FZD6) encodes an integral membrane protein that functions in multiple signal transduction pathways, for example, as a receptor in Wnt/planar cell polarity (PCP) signaling pathway for polarized cell migration and organ morphogenesis. Mutations in FZD6 have been identified in a variety of...

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Main Authors: Lijun Zou, Xiaocheng Wang, Liping Jiang, Shengping Wang, Xia Xiong, Huansheng Yang, Wei Gao, Min Gong, Chien-An A Hu, Yulong Yin
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5470702?pdf=render
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author Lijun Zou
Xiaocheng Wang
Liping Jiang
Shengping Wang
Xia Xiong
Huansheng Yang
Wei Gao
Min Gong
Chien-An A Hu
Yulong Yin
author_facet Lijun Zou
Xiaocheng Wang
Liping Jiang
Shengping Wang
Xia Xiong
Huansheng Yang
Wei Gao
Min Gong
Chien-An A Hu
Yulong Yin
author_sort Lijun Zou
collection DOAJ
description Frizzled 6 (FZD6) encodes an integral membrane protein that functions in multiple signal transduction pathways, for example, as a receptor in Wnt/planar cell polarity (PCP) signaling pathway for polarized cell migration and organ morphogenesis. Mutations in FZD6 have been identified in a variety of tumors. In this study, the full-length cDNA of Sus scrofa FZD6 (Sfz6) was cloned and characterized. Nucleotide sequence analysis demonstrates that the Sfz6 gene encodes the 712 amino-acid (aa) protein with seven transmembrane domain. Tissue distribution analysis showed that Sfz6 mRNA is ubiquitously expressed in various tissues, being highest in kidney, moderate in jejunum, ileum, colon, liver, and spleen. However, FZD6 protein is highly expressed in the heart and there was no significant difference in other tissues. The relative abundance and localization of FZD6 protein in jejunum along the crypt-villus axis was determined by Western blot and immunohistochemical localization. The results show that in the jejunum, FZD6 protein is highly expressed in the villus and less in the crypt cells. Cellular proliferation and viability assays indicate that knockdown of FZD6 with small interfering RNAs (siRNA) significantly reduced the cell viability of the intestinal porcine enterocyte cells (IPEC-J2). Furthermore, qPCR and Western blot analysis revealed that expressions of ras-related C3 botulinum toxin substrate 1 (Rac1); ras homolog gene family member A (RhoA) and c-Jun N-terminal kinase 1 (JNK1), some components of PCP signaling pathway were upregulated (P < 0.05) by knockdown of FZD6 in IPEC-J2 cells. In conclusion, these results showed that FZD6 abundance in the villus was higher than that in crypt cells and knockdown of FZD6 induces PCP signal pathway components expression in IPEC-J2 cells. Our findings provide the foundation for further investigation into porcine FZD6 gene.
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spelling doaj.art-ceb0fd9ba5064950b1d03a7cf74e61532022-12-21T20:36:51ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01126e017942110.1371/journal.pone.0179421Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).Lijun ZouXiaocheng WangLiping JiangShengping WangXia XiongHuansheng YangWei GaoMin GongChien-An A HuYulong YinFrizzled 6 (FZD6) encodes an integral membrane protein that functions in multiple signal transduction pathways, for example, as a receptor in Wnt/planar cell polarity (PCP) signaling pathway for polarized cell migration and organ morphogenesis. Mutations in FZD6 have been identified in a variety of tumors. In this study, the full-length cDNA of Sus scrofa FZD6 (Sfz6) was cloned and characterized. Nucleotide sequence analysis demonstrates that the Sfz6 gene encodes the 712 amino-acid (aa) protein with seven transmembrane domain. Tissue distribution analysis showed that Sfz6 mRNA is ubiquitously expressed in various tissues, being highest in kidney, moderate in jejunum, ileum, colon, liver, and spleen. However, FZD6 protein is highly expressed in the heart and there was no significant difference in other tissues. The relative abundance and localization of FZD6 protein in jejunum along the crypt-villus axis was determined by Western blot and immunohistochemical localization. The results show that in the jejunum, FZD6 protein is highly expressed in the villus and less in the crypt cells. Cellular proliferation and viability assays indicate that knockdown of FZD6 with small interfering RNAs (siRNA) significantly reduced the cell viability of the intestinal porcine enterocyte cells (IPEC-J2). Furthermore, qPCR and Western blot analysis revealed that expressions of ras-related C3 botulinum toxin substrate 1 (Rac1); ras homolog gene family member A (RhoA) and c-Jun N-terminal kinase 1 (JNK1), some components of PCP signaling pathway were upregulated (P < 0.05) by knockdown of FZD6 in IPEC-J2 cells. In conclusion, these results showed that FZD6 abundance in the villus was higher than that in crypt cells and knockdown of FZD6 induces PCP signal pathway components expression in IPEC-J2 cells. Our findings provide the foundation for further investigation into porcine FZD6 gene.http://europepmc.org/articles/PMC5470702?pdf=render
spellingShingle Lijun Zou
Xiaocheng Wang
Liping Jiang
Shengping Wang
Xia Xiong
Huansheng Yang
Wei Gao
Min Gong
Chien-An A Hu
Yulong Yin
Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).
PLoS ONE
title Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).
title_full Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).
title_fullStr Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).
title_full_unstemmed Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).
title_short Molecular cloning, characterization and expression analysis of Frizzled 6 in the small intestine of pigs (Sus scrofa).
title_sort molecular cloning characterization and expression analysis of frizzled 6 in the small intestine of pigs sus scrofa
url http://europepmc.org/articles/PMC5470702?pdf=render
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