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Supplementary Figure 3 - PDF file 63K, Supplementary Fig.S3. Overexpression of PHLPP1 or PHLPP2 abrogated the miR-224-mediated regulation of of the cell-cycle regulators

Supplementary Figure 2 - PDF file 68K, Supplementary Fig.S2. Inhibition of miR-224 changes the expression of cell cycle regulators

Supplementary Data - PDF file155K, Supplementary data, including Supplementary methods, Supplementary figure legends, and Supplementary Tables

Purpose: To investigate the clinicopathologic significance, role, and mechanism of action of microRNA-224 (miR-224) in colorectal cancer.Experimental Design: Real-time PCR was used to quantify miR-224 expression. The association of miR-224 with the clinicopathologic features and survival was evaluated in 110 colorectal cancer patients. The role of miR-224 in colorectal cancer was investigated using in vitro and in vivo assays. Luciferase reporter assays were conducted to confirm target gene associations.Results: miR-224 was overexpressed in colorectal cancer. High-level expression of miR-224 was significantly associated with an aggressive phenotype and poor prognosis. Overexpression of miR-224 promoted colorectal cancer cell proliferation in vitro and tumor growth in vivo. Specifically, miR-224 accelerated the G1–S phase transition through activation of AKT/FOXO3a signaling, downregulation of p21Cip1 and p27Kip1, and upregulation of cyclin D1. Moreover, both PH domain leucine-rich-repeats protein phosphatase 1 (PHLPP1) and PHLPP2, antagonists of PI3K/AKT signaling, were confirmed as bona fide targets of miR-224. miR-224 directly targeted the 3′-untranslated regions of the PHLPP1 and PHLPP2 mRNAs and repressed their expression.Conclusion: This study reveals functional and mechanistic links between miRNA-224 and the tumor suppressors PHLPP1 and PHLPP2 in the pathogenesis of colorectal cancer. miR-224 not only plays important roles in the regulation of cell proliferation and tumor growth in colorectal cancer, but also has potential as a prognostic marker or therapeutic target for colorectal cancer. Clin Cancer Res; 19(17); 4662–72. ©2013 AACR.

Supplementary Figure 4 - PDF file 157K, Supplementary Fig.S4. Correlations between miR-224 and PHLPP1 and PHLPP2 expression in clinical CRC tissue samples

Supplementary Figure 1 - PDF file 138K, Supplementary Fig.S1. miR-224 promotes human CRC cell growth and proliferation

Background Src-associated in mitosis (Sam68; 68 kDa) has been implicated in the oncogenesis and progression of several human cancers. The aim of this study was to investigate the clinicopathologic significance of Sam68 expression and its subcellular localization in colorectal cancer (CRC). Methods Sam68 expression was examined in CRC cell lines, nine matched CRC tissues and adjacent noncancerous tissues using reverse transcription (RT)-PCR, quantitative RT-PCR and Western blotting. Sam68 protein expression and localization were determined in 224 paraffin-embedded archived CRC samples using immunohistochemistry. Statistical analyses were applied to evaluate the clinicopathologic significance. Results Sam68 was upregulated in CRC cell lines and CRC, as compared with normal tissues; high Sam68 expression was detected in 120/224 (53.6%) of the CRC tissues. High Sam68 expression correlated significantly with poor differentiation (P = 0.033), advanced T stage (P P = 0.023) and distant metastasis (P = 0.033). Sam68 nuclear localization correlated significantly with poor differentiation (P = 0.002) and T stage (P =0.021). Patients with high Sam68 expression or Sam68 nuclear localization had poorer overall survival than patients with low Sam68 expression or Sam68 cytoplasmic localization. Patients with high Sam68 expression had a higher risk of recurrence than those with low Sam68 expression. Conclusions Overexpression of Sam68 correlated highly with cancer progression and poor differentiation in CRC. High Sam68 expression and Sam68 nuclear localization were associated with poorer overall survival.

Purpose: To investigate the clinicopathologic significance, role, and mechanism of action of microRNA-224 (miR-224) in colorectal cancer. Experimental Design: Real-time PCR was used to quantify miR-224 expression. The association of miR-224 with the clinicopathologic features and survival was evaluated in 110 colorectal cancer patients. The role of miR-224 in colorectal cancer was investigated using in vitro and in vivo assays. Luciferase reporter assays were conducted to confirm target gene associations. Results: miR-224 was overexpressed in colorectal cancer. High-level expression of miR-224 was significantly associated with an aggressive phenotype and poor prognosis. Overexpression of miR-224 promoted colorectal cancer cell proliferation in vitro and tumor growth in vivo. Specifically, miR-224 accelerated the G1–S phase transition through activation of AKT/FOXO3a signaling, downregulation of p21Cip1 and p27Kip1, and upregulation of cyclin D1. Moreover, both PH domain leucine-rich-repeats protein phosphatase 1 (PHLPP1) and PHLPP2, antagonists of PI3K/AKT signaling, were confirmed as bona fide targets of miR-224. miR-224 directly targeted the 3′-untranslated regions of the PHLPP1 and PHLPP2 mRNAs and repressed their expression. Conclusion: This study reveals functional and mechanistic links between miRNA-224 and the tumor suppressors PHLPP1 and PHLPP2 in the pathogenesis of colorectal cancer. miR-224 not only plays important roles in the regulation of cell proliferation and tumor growth in colorectal cancer, but also has potential as a prognostic marker or therapeutic target for colorectal cancer. Clin Cancer Res; 19(17); 4662–72. ©2013 AACR.

To investigate the clinical features of Crohn disease according to the Montreal classification.Clinical data of 43 surgical patients with Crohn disease (surgical group) and 125 non-surgical patients with Crohn disease (non-surgical group) were retrospectively analyzed and compared between two groups. The Montreal classification was used.In the surgical group, 28 patients (65.1%) were A2, 14 (32.6%) were A3 and only one was A1, which was not significantly different as compared to the non-surgery group. The proportions of L1, L2, L3, and L4 subtype in the surgical group were 41.9%, 25.6%, 30.2%, and 2.3%, respectively, which was not significantly different as compared to that in the non-surgery group. In the surgical group,B1 disease was found in 1 case (2.3%), B2 in 26 cases (60.5%), and B3 in 16 cases (37.2%), while in the non-surgical group, B1 was found in 79 cases (63.2%), B2 in 44 cases (35.2%) and B3 in 2 cases (1.6%). Differences were significant between two groups in disease behavior (P=0.001, P=0.004, P=0.001).Most surgical patients of Crohn disease are A2. L1 and L3 are the main lesion location. As disease behavior, B2 and B3 are the main reasons for operation.

目前, 胃癌作为最 为常见的消化系 恶性肿瘤, 其发病 率与死亡率均较 高, 患者初诊时多 已发展至晚期, 已 失去最佳的根治 手术时机, 但可通 过积极而有效的 化疗来延长患者 的生存时间, 同时 改善患者生存质 量. 卡培他滨是一 种氟化尿嘧啶类 药物, 对癌细胞具 有一定的选择性 杀伤作用, 使该药 的不良反应大大 降低. 肿瘤细胞侵 袭与转移是胃癌 发展的重要环节, 并且与手术和化 疗预后相关, 相关 研究表明, 基质金 属蛋白酶2(matrix metalloproteinase 2 , M M P 2 ) 和 MMP-9已经成为 与胃癌侵袭、转 移和预后高度相 关的重要分子. 刘艳萍, 李国庆, 陈宏辉, 屈小勇, 王正根, 朱理辉, 封英 娟, 张琍, 南华大学附属第二医院消化内科 湖南省衡阳市 421001 谢娟, 南华大学医学院诊断学教研室 湖南省衡阳市 421001 刘艳萍, 主治医师, 主要从事消化系肿瘤放化疗治疗的研究. 国家自然基金资助项目, No. 81071965 作者贡献分布: 此课题由刘艳萍与李国庆设计; 研究过程由 刘艳萍、陈宏辉、谢娟、屈小勇及王正根操作完成; 数据测 定和分析由朱理辉、封英娟及张琍完成; 论文写作由刘艳萍 完成. 通讯作者: 李国庆, 教授, 主任医师, 421001, 湖南省衡阳市解放 路30号, 南华大学附属第二医院消化内科. ligq1970@163.com 电话: 0734-8899681 收稿日期: 2014-12-31 修回日期: 2015-01-15 接受日期: 2015-01-22 在线出版日期: 2015-03-08