TBX19 is overexpressed in colorectal cancer and associated with lymph node metastasis

The T-box 19 (TBX19) gene encodes a transcription factor characterized by a highly conserved DNA-binding motif (T-box). Recent studies have revealed that TBX19 has been identified as one of the genes activated by KRAS mutations, and is upregulated in colon adenoma. These results indicate that TBX19...

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Veröffentlicht in:FUKUSHIMA JOURNAL OF MEDICAL SCIENCE 2017, Vol.63(3), pp.141-151
Hauptverfasser: Ando, Jin, Saito, Motonobu, Imai, Jun-ichi, Ito, Emi, Yanagisawa, Yuka, Honma, Reiko, Saito, Katsuharu, Tachibana, Kazunoshin, Momma, Tomoyuki, Ohki, Shinji, Ohtake, Tohru, Watanabe, Shinya, Waguri, Satoshi, Kono, Koji, Takenoshita, Seiichi
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container_title FUKUSHIMA JOURNAL OF MEDICAL SCIENCE
container_volume 63
creator Ando, Jin
Saito, Motonobu
Imai, Jun-ichi
Ito, Emi
Yanagisawa, Yuka
Honma, Reiko
Saito, Katsuharu
Tachibana, Kazunoshin
Momma, Tomoyuki
Ohki, Shinji
Ohtake, Tohru
Watanabe, Shinya
Waguri, Satoshi
Kono, Koji
Takenoshita, Seiichi
description The T-box 19 (TBX19) gene encodes a transcription factor characterized by a highly conserved DNA-binding motif (T-box). Recent studies have revealed that TBX19 has been identified as one of the genes activated by KRAS mutations, and is upregulated in colon adenoma. These results indicate that TBX19 may work as an oncogene in colorectal cancer (CRC). However, the expression and role of TBX19 have yet to be investigated. Here, we investigated TBX19 mRNA and protein expressions in colon cancer cells or surgically resected CRC. We found that TBX19 mRNA expression was significantly increased in tumorous tissues compared to that in non-tumorous tissues, and increased TBX19 mRNA expression was associated with positive lymph node metastasis in our cohort. The expression of TBX19 mRNA was not correlated with that of TBX19 protein in tissue sample taken from the CRC patients. Moreover, TBX19 showed positive staining even in the normal colonic tissues and the adjacent non-tumorous tissues. These results suggest that the expression of TBX19 protein is not correlated with the expression of TBX19 mRNA. In addition, our results promote further investigations into the impact of TBX19 upregulation on colorectal carcinogenesis, as well as the underlying mechanisms.
doi_str_mv 10.5387/fms.2017-08
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Recent studies have revealed that TBX19 has been identified as one of the genes activated by KRAS mutations, and is upregulated in colon adenoma. These results indicate that TBX19 may work as an oncogene in colorectal cancer (CRC). However, the expression and role of TBX19 have yet to be investigated. Here, we investigated TBX19 mRNA and protein expressions in colon cancer cells or surgically resected CRC. We found that TBX19 mRNA expression was significantly increased in tumorous tissues compared to that in non-tumorous tissues, and increased TBX19 mRNA expression was associated with positive lymph node metastasis in our cohort. The expression of TBX19 mRNA was not correlated with that of TBX19 protein in tissue sample taken from the CRC patients. Moreover, TBX19 showed positive staining even in the normal colonic tissues and the adjacent non-tumorous tissues. These results suggest that the expression of TBX19 protein is not correlated with the expression of TBX19 mRNA. 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The expression of TBX19 mRNA was not correlated with that of TBX19 protein in tissue sample taken from the CRC patients. Moreover, TBX19 showed positive staining even in the normal colonic tissues and the adjacent non-tumorous tissues. These results suggest that the expression of TBX19 protein is not correlated with the expression of TBX19 mRNA. In addition, our results promote further investigations into the impact of TBX19 upregulation on colorectal carcinogenesis, as well as the underlying mechanisms.</abstract><cop>Japan</cop><pub>THE FUKUSHIMA SOCIETY OF MEDICAL SCIENCE</pub><pmid>29199261</pmid><doi>10.5387/fms.2017-08</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Cell Line, Tumor
colorectal cancer
Colorectal Neoplasms - genetics
Colorectal Neoplasms - metabolism
Colorectal Neoplasms - pathology
cytoplasmic granular signal
diagnostic biomarker
Female
Homeodomain Proteins - analysis
Homeodomain Proteins - genetics
Homeodomain Proteins - physiology
Humans
lymph node metastasis
Lymphatic Metastasis
Male
Middle Aged
Mutation
Original
Proto-Oncogene Proteins p21(ras) - genetics
RNA, Messenger - analysis
T-Box Domain Proteins - analysis
T-Box Domain Proteins - genetics
T-Box Domain Proteins - physiology
TBX19
title TBX19 is overexpressed in colorectal cancer and associated with lymph node metastasis
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