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Activation of ERK1/2 occurs independently of KRAS or BRAF status in endometrial cancer and is associated with favorable prognosis
http://hdl.handle.net/2297/45973
http://hdl.handle.net/2297/4597345b29282-7aba-4b58-b012-f09a3ad50d32
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ME-PR-MIZUMOTO-Y-652.pdf (284.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Activation of ERK1/2 occurs independently of KRAS or BRAF status in endometrial cancer and is associated with favorable prognosis | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Mizumoto, Yasunari
× Mizumoto, Yasunari× Kyo, Satoru× Mori, Noriko× Sakaguchi, Junko× Ohno, Satoshi× Maida, Yoshiko× Hashimoto, Manabu× Takakura, Masahiro× Inoue, Masaki |
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| 提供者所属 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | がん進展制御研究所 | |||||
| 書誌情報 |
Cancer Science 巻 98, 号 5, p. 652-658, 発行日 2007-05-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1347-9032 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11808050 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1111/j.1349-7006.2007.00445.x | |||||
| 出版者 | ||||||
| 出版者 | Japanese Cancer Association / Blackwell Publishing Ltd | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The extracellular-regulated kinase (ERK) signaling pathway plays important roles in regulating the malignant potential of cancer cells in vitro. However, the effect of ERK signaling on the prognosis of human tumors is not clearly understood. The present study examined the expression of phosphorylated ERK1/2 (p-ERK1/2) as a hallmark of ERK activation, in relation to KRAS and BRAF mutations, in 63 endometrial cancer specimens with endometrioid-subtype, in order to clarify the prognostic value of p-ERK1/2 expression. Immmunohistochemical analysis revealed that 40 tumors (63%) expressed p-ERK1/2, with varying levels of expression. Total ERK1/2 expression was also evaluated in a subset of tumors; most cases expressed ERK1/2 constitutively but no correlation was observed with p-ERK expression, indicating that p-ERK1/2 staining was not due to ERK overexpression but to hyperactivation of ERK1/2. There was no statistically significant correlation between p-ERK1/2 expression and clinicopathological features, including patient age, International Federation of Gynecology and Obstetrics stage, pathological grade, myometrial invasion and lymph node metastasis. Sequencing analysis indicated that 23% of patients had a mutation in exon 1 of KRAS, whereas none of the patients had a mutation in exons 11 or 15 of BRAF, which are reportedly hot spots for mutation in many tumor types. There was no significant correlation between KRAS or BRAF status and p-ERK1/2 expression. Unexpectedly, patients with low p-ERK1/2 expression had significantly lower relapse-free survival (P = 0.041) and overall survival (P = 0.020). Multivariate Cox regression analysis indicated that p-ERK1/2 expression was an independent prognostic indicator for overall survival (P = 0.047). These findings suggest that ERK activation occurs in a KRAS - and BRAF-independent manner in endometrial cancer, and is associated with favorable prognosis. © 2007 Japanese Cancer Association. | |||||
| 権利 | ||||||
| 権利情報 | © Japanese Cancer Association 日本癌学会 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.jca.gr.jp/ | |||||
