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...
Main Authors: | , , , , , , , , , |
---|---|
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 |
_version_ | 1818839433144696832 |
---|---|
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. |
first_indexed | 2024-12-19T03:54:13Z |
format | Article |
id | doaj.art-ceb0fd9ba5064950b1d03a7cf74e6153 |
institution | Directory Open Access Journal |
issn | 1932-6203 |
language | English |
last_indexed | 2024-12-19T03:54:13Z |
publishDate | 2017-01-01 |
publisher | Public Library of Science (PLoS) |
record_format | Article |
series | PLoS ONE |
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 |
work_keys_str_mv | AT lijunzou molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT xiaochengwang molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT lipingjiang molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT shengpingwang molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT xiaxiong molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT huanshengyang molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT weigao molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT mingong molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT chienanahu molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa AT yulongyin molecularcloningcharacterizationandexpressionanalysisoffrizzled6inthesmallintestineofpigssusscrofa |