Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.

Gastric cancer (GC) is a serious digestive tract disease that threatens human life worldwide, and the prognosis of gastric cancer accompanied by distant lymph node or the distant metastasis organs is worse. The purpose of this study was to investigate the role of circular RNA COL6A3_030 (circBase ID...

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Autores principales:	Xiaoge Geng, Jingya Wang, Chenjing Zhang, Xiaolu Zhou, Jiyong Jing, Wensheng Pan
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	circcol6a3_030 metastasis encoding polypeptide gastric cancer Biotechnology TP248.13-248.65
Acceso en línea:	https://doaj.org/article/166190662a1749329ac652bcb2457c6b
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spelling	oai:doaj.org-article:166190662a1749329ac652bcb2457c6b2021-11-04T15:51:53ZCircular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.2165-59792165-598710.1080/21655979.2021.1979915https://doaj.org/article/166190662a1749329ac652bcb2457c6b2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/21655979.2021.1979915https://doaj.org/toc/2165-5979https://doaj.org/toc/2165-5987Gastric cancer (GC) is a serious digestive tract disease that threatens human life worldwide, and the prognosis of gastric cancer accompanied by distant lymph node or the distant metastasis organs is worse. The purpose of this study was to investigate the role of circular RNA COL6A3_030 (circBase ID: hsa_circ_0006401; circRNADb ID: hsa_circ_28198; circBank ID: hsa_circCOL6A3_030) in GC metastasis. qRT-PCR analysis using back-splicing primers and Sanger sequencing of PCR products were performed to identify circCOL6A3_030 in GC tissues and cell lines; RNA-FISH assay was performed to validate the subcellular localization of circCOL6A3_030. Transwell and wound-healing assays were carried out to evaluate the migration ability of GC cells. Western blot was conducted to detect the polypeptide encoded by circCOL6A3_030 in cells. circCOL6A3_030 was down-regulated in GC tissues and cell lines, while circCOL6A3_030 was up-regulated in GC with distant lymph node metastasis. The migration of circCOL6A3_030 silenced GC cells was significantly inhibited in both SGC-7901 and BGC-823 cell lines. Importantly, in vivo assay, silencing circCOL6A3_030 could reduce liver metastases from gastric cancer cells. Meanwhile, further studies suggested that circCOL6A3_030 encoded a small peptide that had a function as a tumor-promoting metastasis factor and immunohistochemistry confirmed the presence of this polypeptide. To sum up, our study showed that circCOL6A3_030 promoted GC cell migration by encoding a small peptide called circCOL6A3_030_198aa. Therefore, our results highlight the potential role of circCOL6A3_030 for clinical diagnosis and treatment of GC with distant lymph node metastasis.Xiaoge GengJingya WangChenjing ZhangXiaolu ZhouJiyong JingWensheng PanTaylor & Francis Grouparticlecirccol6a3_030metastasisencodingpolypeptidegastric cancerBiotechnologyTP248.13-248.65ENBioengineered, Vol 12, Iss 1, Pp 8202-8216 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	circcol6a3_030 metastasis encoding polypeptide gastric cancer Biotechnology TP248.13-248.65
spellingShingle	circcol6a3_030 metastasis encoding polypeptide gastric cancer Biotechnology TP248.13-248.65 Xiaoge Geng Jingya Wang Chenjing Zhang Xiaolu Zhou Jiyong Jing Wensheng Pan Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.
description	Gastric cancer (GC) is a serious digestive tract disease that threatens human life worldwide, and the prognosis of gastric cancer accompanied by distant lymph node or the distant metastasis organs is worse. The purpose of this study was to investigate the role of circular RNA COL6A3_030 (circBase ID: hsa_circ_0006401; circRNADb ID: hsa_circ_28198; circBank ID: hsa_circCOL6A3_030) in GC metastasis. qRT-PCR analysis using back-splicing primers and Sanger sequencing of PCR products were performed to identify circCOL6A3_030 in GC tissues and cell lines; RNA-FISH assay was performed to validate the subcellular localization of circCOL6A3_030. Transwell and wound-healing assays were carried out to evaluate the migration ability of GC cells. Western blot was conducted to detect the polypeptide encoded by circCOL6A3_030 in cells. circCOL6A3_030 was down-regulated in GC tissues and cell lines, while circCOL6A3_030 was up-regulated in GC with distant lymph node metastasis. The migration of circCOL6A3_030 silenced GC cells was significantly inhibited in both SGC-7901 and BGC-823 cell lines. Importantly, in vivo assay, silencing circCOL6A3_030 could reduce liver metastases from gastric cancer cells. Meanwhile, further studies suggested that circCOL6A3_030 encoded a small peptide that had a function as a tumor-promoting metastasis factor and immunohistochemistry confirmed the presence of this polypeptide. To sum up, our study showed that circCOL6A3_030 promoted GC cell migration by encoding a small peptide called circCOL6A3_030_198aa. Therefore, our results highlight the potential role of circCOL6A3_030 for clinical diagnosis and treatment of GC with distant lymph node metastasis.
format	article
author	Xiaoge Geng Jingya Wang Chenjing Zhang Xiaolu Zhou Jiyong Jing Wensheng Pan
author_facet	Xiaoge Geng Jingya Wang Chenjing Zhang Xiaolu Zhou Jiyong Jing Wensheng Pan
author_sort	Xiaoge Geng
title	Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.
title_short	Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.
title_full	Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.
title_fullStr	Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.
title_full_unstemmed	Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.
title_sort	circular rna circcol6a3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circcol6a3_030 promotes metastasis.
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/166190662a1749329ac652bcb2457c6b
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Circular RNA circCOL6A3_030 is involved in the metastasis of gastric cancer by encoding polypeptide: circCOL6A3_030 promotes metastasis.

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