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Effects of Decoction on plasma proteome in cirrhosis: preliminary experimental study with rats
LIU Jie, WANG Jiyao, WEI Liming, LU Ye, Jin Hong
《医学前沿(英文)》 2008年 第2卷 第1期 页码 39-44 doi: 10.1007/s11684-008-0008-z
关键词: Decoction intervention serine/threonine-protein underwent Decoction glutathione peroxidase
Mengjie LI, Chunbao LI, Shangxin SONG, Xinglian XU, Guanghong ZHOU
《农业科学与工程前沿(英文)》 2018年 第5卷 第3期 页码 362-372 doi: 10.15302/J-FASE-2018206
This study compared proteome profiles and morphological changes of rat jejunum in response to different dietary proteins. Fifty male Sprague-Dawley rats were fed with casein (control), and isolated beef, pork, fish and chicken proteins for 14 days. Proteome analysis, histological observation and PEPT1 quantification of the jejunum were performed. The results indicated that rats fed with chicken proteins had higher PEPT1 mRNA and protein levels (P<0.05) but lower villus height and ratio of villus height to crypt depth (V/C ratio, P<0.05) than those fed with casein and pork protein. Label-free LC-MS/MS indicated that, as compared to casein, intake of chicken protein can regulate oligopeptide transport mainly by upregulating PEPT1 protein expression and reducing dipeptidyl-peptidase activity related to biological oxidation, and can reduce oligopeptide absorption capacity by regulating Hippo signaling pathway. Although intake of beef and fish proteins had no significant effect on PEPT1 expression, they altered several signaling pathways.
关键词: Hippo signaling pathway meat protein PEPT1 proteome analysis rat jejunum
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《医学前沿(英文)》 2016年 第10卷 第3期 页码 278-285 doi: 10.1007/s11684-016-0453-z
Colorectal cancer (CRC) is a leading cause of cancer-related deaths worldwide. We aimed to find novel molecules as potential biomarkers for the early diagnosis of CRC. A serum-free conditioned medium was successfully collected from three pairs of CRC tissue and adjacent normal tissue. iTRAQ-based quantitative proteomic analysis was applied to compare the differences in secretome between primary CRC mucosa and adjacent normal mucosa. A total of 145 kinds of proteins were identified. Of these proteins, 29 were significantly different between CRC and normal tissue. Tropomyosin 2 β (TPM2) exhibited the most significant differences; as such, this protein was selected for further validation. Quantitative real-time PCR indicated that the mRNA expression of TPM2 significantly decreased in the CRC tissue compared with the paired adjacent normal tissue. Immunohistochemical analysis also confirmed that TPM2 was barely detected at protein levels in the CRC tissue. In summary, this study revealed potential molecules for future biomarker applications and provided an efficient approach for the differential analysis of cancer-associated secretome. TPM2 may be valuable for the early diagnosis of CRC.
《医学前沿(英文)》 页码 993-1005 doi: 10.1007/s11684-023-0989-7
时间序列多组学整合分析揭示原代肝细胞体外培养去分化过程伴随非降解性泛素化修饰的增加 Article
姜正一, 孙泽宇, 欧阳晓希, 赵亚磊, 周梦豪, 王保红, 李启睿, 范林骁, 张赛男, 李兰娟
《工程(英文)》 2020年 第6卷 第11期 页码 1302-1314 doi: 10.1016/j.eng.2020.02.011
目前,原代肝细胞(PHC)在各个研究领域被广泛使用,但是由于在体外培养过程中肝细胞特异性功能的迅速退化(即去分化),严重限制了它的应用范围。尽管学者已经对PHC的转录调控和全细胞蛋白质组(WCP)进行了广泛研究,但只有为数不多的研究考虑了蛋白质翻译后修饰(PTM)在这一过程中的作用。为了揭示引起PHC去分化的潜在机制,我们收集了在体外培养0 h、6 h、12 h、24 h和48 h的大鼠原代肝细胞样本,对各个时间点细胞样本的转录组、WCP、泛素化蛋白质组和磷酸化蛋白质组进行了定量分析。我们的数据包含了原代肝细胞体外培养去分化过程中详细的多组学分析结果,包括2196个蛋白质、2056个泛素化修饰位点和4932个磷酸化修饰位点。这项研究表明,PHC去分化过程中基因转录水平和蛋白质表达量之间的相关性较低。泛素化修饰组和对应的WCP联合分析表明,PHC去分化伴随着非降解性K27泛素化修饰位点的增加。对差异表达的磷酸化修饰蛋白进行功能富集分析,表明该过程中有铁死亡参与。其中,有404种蛋白质同时具有泛素化修饰位点和磷酸化修饰位点,被鉴定为与去分化事件有关的关键蛋白。最终,Ptbp1、Hnrpd、Hnrnpu和Srrm2被鉴定为PHC去分化过程中的hub分子。综上所述,我们的数据为抑制原代肝细胞体外培养去分化提供了潜在靶点分子及新的见解。
标题 作者 时间 类型 操作
Effects of Decoction on plasma proteome in cirrhosis: preliminary experimental study with rats
LIU Jie, WANG Jiyao, WEI Liming, LU Ye, Jin Hong
期刊论文
Proteome comparisons reveal influence of different dietary proteins on the development of rat jejunum
Mengjie LI, Chunbao LI, Shangxin SONG, Xinglian XU, Guanghong ZHOU
期刊论文
iTRAQ-based quantitative analysis of cancer-derived secretory proteome reveals TPM2 as a potential diagnostic
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期刊论文
Discovery of the mechanisms of acupuncture in the treatment of migraine based on functional magnetic resonance imaging and omics
期刊论文