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Altered intestinal microbiota associated with colorectal cancer
Hong Zhang, Ying Chang, Qingqing Zheng, Rong Zhang, Cheng Hu, Weiping Jia
《医学前沿(英文)》 2019年 第13卷 第4期 页码 461-470 doi: 10.1007/s11684-019-0695-7
关键词: colorectal cancer (CRC) gut microbiota intestinal Eubacterium Devosia
null
《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.
Growth suppression of colorectal cancer expressing S492R EGFR by monoclonal antibody CH12
Qiongna Dong, Bizhi Shi, Min Zhou, Huiping Gao, Xiaoying Luo, Zonghai Li, Hua Jiang
《医学前沿(英文)》 2019年 第13卷 第1期 页码 83-93 doi: 10.1007/s11684-019-0682-z
Colorectal cancer (CRC) is a common malignant tumor in the digestive tract, and 30%–85% of CRCs express epidermal growth factor receptors (EGFRs). Recently, treatments using cetuximab, also named C225, an anti-EGFR monoclonal antibody, for CRC have been demonstrated to cause an S492R mutation in EGFR. However, little is known about the biological function of S492R EGFR. Therefore, we attempted to elucidate its biological function in CRC cells and explore new treatment strategies for this mutant form. Our study indicated that EGFR and S492R EGFR accelerate the growth of CRC cells in vitro and in vivo and monoclonal antibody CH12, which specifically recognizes an EGFR tumor-specific epitope, can bind efficiently to S492R EGFR. Furthermore, mAb CH12 showed significantly stronger growth suppression activities and induced a more potent antibody-dependent cellular cytotoxicity effect on CRC cells bearing S492R EGFR than mAb C225. mAb CH12 obviously suppressed the growth of CRC xenografts with S492R EGFR mutations in vivo. Thus, mAb CH12 may be a promising therapeutic agent in treating patients with CRC bearing an S492R EGFR mutation.
关键词: S492R EGFR ectodomain mutation colorectal cancer mAb CH12 immunnotherapy
赵浏阳, 张翔, 左涛, 于君
《工程(英文)》 2017年 第3卷 第1期 页码 90-97 doi: 10.1016/J.ENG.2017.01.012
结直肠癌是由遗传突变、表观遗传改变、慢性炎症、饮食和生活方式等多因素引起的多阶段疾病。最新研究表明,肠道菌群是结直肠癌发展过程中的重要参与者。肠道菌群稳态的失调,可通过诱发炎症、调控宿主防御、氧化应激和改变细菌代谢产物等机制促进结直肠癌的发生发展。值得注意的是,肠道横、纵截面上不同解剖部位的驻留菌群有所不同。根据细菌在肠道中定植部位的不同,可将其划分为4 种类型:肠腔共生菌、肠黏膜驻留菌、上皮驻留菌和淋巴组织驻留菌。由于结肠共生细菌的易位与结直肠癌的发展密切相关,结直肠癌相关细菌可有望成为用于结直肠癌诊断的非侵入且准确性高的新型生物标志物。本文旨在总结和概述肠道不同解剖部位中的肠道菌群在结直肠癌发生发展中的作用。
结直肠癌、基质和正常结肠黏膜显微解剖区域N-糖组的显著多样性 Article
Di Wang, Katarina Madunić , Tao Zhang, Guinevere S.M. Lageveen-Kammeijer, Manfred Wuhrer
《工程(英文)》 2023年 第26卷 第7期 页码 32-43 doi: 10.1016/j.eng.2022.08.016
Aberrant glycosylation is considered to be a hallmark of colorectal cancer (CRC), as demonstrated by various studies. While the N-glycosylation of cell lines and serum has been widely examined, the analysis of cancer-associated N-glycans from tissues has been hampered by the heterogeneity of tumors and the complexity of N-glycan structures. To overcome these obstacles, we present a study using laser capture microdissection that makes it possible to largely deconvolute distinct N-glycomic signatures originating from different regions of heterogeneous tissues including cancerous, stromal, and healthy mucosa cells. N-glycan alditols were analyzed by means of porous graphitized carbon liquid chromatography-electrospray ionization tandem mass spectrometry, enabling the differentiation and structural characterization of isomeric species. In total, 116 N-glycans were identified that showed profound differences in expression among cancer, stroma, and normal mucosa. In comparison with healthy mucosa, the cancer cells showed an increase in α2-6 sialylation and monoantennary N-glycans, as well as a decrease in bisected N-glycans. Moreover, specific sialylated and (sialyl-)LewisA/X antigen-carrying N-glycans were exclusively expressed in cancers. In comparison with cancer, the stroma showed lower levels of oligomannosidic and monoantennary N-glycans, LewisA/X epitopes, and sulfation, as well as increased expression of (core-)fucosylation and α2-3 sialylation. Our study reveals the distinct N-glycomic profiles of different cell types in CRC tumor and control tissues, proving the necessity of their separate analysis for the discovery of cancer-associated glycans.
关键词: 结直肠癌 肿瘤 多孔石墨化碳液相色谱-质谱 N-糖组 抗体反应
结直肠癌黏膜组织来源的大肠杆菌菌株间遗传和功能差异研究 Article
常宇骁, 李享, 丁磊, 杨超, 潘志远, 韩妮, 崔玉军, 智发朝, 杨瑞馥, 高宏,毕玉晶
《工程(英文)》 2022年 第16卷 第9期 页码 210-219 doi: 10.1016/j.eng.2021.03.028
结直肠癌是全球第三大癌症。宏基因组学已被广泛用于基于细菌属或种水平的比较来分析肠道微生物群与结直肠癌之间的关系,为结直肠癌发展中的生态失调提供了证据。然而,这种分析并不能为我们提供菌株水平的信息,进而理解一种细菌在结直肠癌发生发展中菌株水平的作用。本文利用培养组学方法分离结直肠癌黏膜样本,并选择了158株大肠杆菌,通过系统发育分析和炎症诱导实验,揭示它们在基因组学和功能上的差异。基因组比较可以将这些菌株分为5个系统群。选择代表性菌株进行THP-1细胞(人白血病单核细胞)Transwell实验以及动物实验,结果显示不同菌株经刺激后,细胞因子水平有显著性差异。进一步的生物信息学分析揭示了不同系统群间单核苷酸多态性、基因和代谢途径的不同特征,这些结果有助于了解这些菌株之间的表型差异。细菌菌株在基因组学和功能上的差异表明,菌株水平上的功能差异可以进一步了解宿主与肠道细菌的相互作用机制。
发生于胃和结直肠的印戒细胞癌的临床特征以及不同部位的转移对预后的预测价值的研究 Article
吴静静, 方戴琼, 满达, 吴文瑞, 王清, 李雅婷, 叶建中, 李兰娟
《工程(英文)》 2020年 第6卷 第9期 页码 1028-1034 doi: 10.1016/j.eng.2020.06.007
印戒细胞癌是胃、结直肠肿瘤中恶性程度最高的病理类型之一。本研究分析了印戒细胞癌的转移特性及其对肿瘤特异性生存率的影响。这项研究纳入了4055例在2010—2012年被诊断为胃印戒细胞癌(signet ring cell carcinoma, SRCC)、结直肠印戒细胞癌患者,其中胃印戒细胞癌2905例,结肠印戒细胞癌和直肠印戒细胞癌1150例。所有临床数据来源于癌症监测、流行病学、最终结果登记资料数据库(SEER)。我们通过卡方检验分析在确诊时伴有远处转移的患者及无远处转移的患者的临床特征。同时用Kaplan-Meier、Cox风险比例回归模型分析出现不同部位转移的患者的预后差异。研究发现,在胃印戒细胞癌患者中,远处淋巴结转移是其最常见的转移部位,而出现脑转移的患者其预后最差。而在患有结肠或直肠的印戒细胞癌患者中,肝脏是其最常见的转移部位,而在确诊时出现远处淋巴结转移的患者的拥有最高的死亡率。总之,出现远处转移常常是预后较差的标志之一,我们的研究结果为印戒细胞癌患者的临床随访、预后分析提供一定的建议。
Influence of Survivin-targeted siRNA on the biological features of colorectal carcinoma cells
XIONG Ying, GUO Wen, LI Ting, LI Ke
《医学前沿(英文)》 2007年 第1卷 第3期 页码 304-307 doi: 10.1007/s11684-007-0058-7
关键词: control therapy influence Survivin-1 colorectal carcinoma
Absence of FHIT expression is associated with apoptosis inhibition in colorectal cancer
CAO Jie, LI Wanglin, XIA Jie, TANG Weibiao, WANG Hui, CHEN Xiwen, XIAO Huanqing, LI Yuyuan, CHEN Xiaoping, DU Hong, CHEN Shanming
《医学前沿(英文)》 2007年 第1卷 第2期 页码 147-156 doi: 10.1007/s11684-007-0028-0
从结直肠癌细胞和组织样本释放的外泌体中检测肿瘤相关抗原自身抗体的多路生物传感诊断平台展示了对结直肠癌的高诊断能力 Article
Ana Montero-Calle, Itziar Aranguren-Abeigon, María Garranzo-Asensio, Carmen Poves, María Jesús Fernández-Aceñero, Javier Martínez-Useros, Rodrigo Sanz, Jana Dziaková, Javier Rodriguez-Cobos, Guillermo Solís-Fernández, Eloy Povedano, Maria Gamella, Rebeca Magnolia Torrente-Rodríguez, Miren Alonso-Navarro, Vivian de los Ríos, J. Ignacio Casal, Gemma Domínguez, Ana Guzman-Aranguez, Alberto Peláez-García, José Manuel Pingarrón, Susana Campuzano, Rodrigo Barderas
《工程(英文)》 2021年 第7卷 第10期 页码 1393-1412 doi: 10.1016/j.eng.2021.04.026
《医学前沿(英文)》 2021年 第15卷 第6期 页码 942-942 doi: 10.1007/s11684-021-0876-z
Qin-Yan GAO, Hui-Min CHEN, Jing-Yuan FANG, Jian-Qiu SHENG, Ping ZHENG, Cheng-Gong YU, Bo JIANG,
《医学前沿(英文)》 2010年 第4卷 第4期 页码 436-442 doi: 10.1007/s11684-010-0200-9
关键词: colorectal adenoma polypectomy follow-up recurrence risk factor
转移性结直肠癌治疗模式随时间的变化趋势以及其与患者生存期的关系——一项基于智能大数据平台的回顾性队列研究 Article
王梓贤, 姚逸尘, 麦宗炯, 林武豪, 黄酉生, 金颖, 骆卉妍, 张东生, 王风华, 王峰, 陈功, 丁培荣, 元云飞, 李宇红, 黄金华, 潘志忠, 徐瑞华
《工程(英文)》 2021年 第7卷 第4期 页码 526-533 doi: 10.1016/j.eng.2020.10.017
目前,尤其是在国内,仍缺乏大规模的、高质量的转移性结直肠癌(metastatic colorectal cancer, mCRC)真实世界数据。
Progress and challenges in RET-targeted cancer therapy
《医学前沿(英文)》 2023年 第17卷 第2期 页码 207-219 doi: 10.1007/s11684-023-0985-y
关键词: pralsetinib selpercatinib RET-alteration lung cancer thyroid cancer tumor-agnostic therapy drug resistance
Epithelial-to-mesenchymal transition in cancer: complexity and opportunities
Yun Zhang, Robert A. Weinberg
《医学前沿(英文)》 2018年 第12卷 第4期 页码 361-373 doi: 10.1007/s11684-018-0656-6
The cell-biological program termed the epithelial-to-mesenchymal transition (EMT) plays an important role in both development and cancer progression. Depending on the contextual signals and intracellular gene circuits of a particular cell, this program can drive fully epithelial cells to enter into a series of phenotypic states arrayed along the epithelial-mesenchymal phenotypic axis. These cell states display distinctive cellular characteristics, including stemness, invasiveness, drug-resistance and the ability to form metastases at distant organs, and thereby contribute to cancer metastasis and relapse. Currently we still lack a coherent overview of the molecular and biochemical mechanisms inducing cells to enter various states along the epithelial-mesenchymal phenotypic spectrum. An improved understanding of the dynamic and plastic nature of the EMT program has the potential to yield novel therapies targeting this cellular program that may aid in the management of high-grade malignancies.
关键词: epithelial-to-mesenchymal transition cancer metastasis cancer stem cell
标题 作者 时间 类型 操作
Altered intestinal microbiota associated with colorectal cancer
Hong Zhang, Ying Chang, Qingqing Zheng, Rong Zhang, Cheng Hu, Weiping Jia
期刊论文
iTRAQ-based quantitative analysis of cancer-derived secretory proteome reveals TPM2 as a potential diagnosticbiomarker of colorectal cancer
null
期刊论文
Growth suppression of colorectal cancer expressing S492R EGFR by monoclonal antibody CH12
Qiongna Dong, Bizhi Shi, Min Zhou, Huiping Gao, Xiaoying Luo, Zonghai Li, Hua Jiang
期刊论文
结直肠癌、基质和正常结肠黏膜显微解剖区域N-糖组的显著多样性
Di Wang, Katarina Madunić , Tao Zhang, Guinevere S.M. Lageveen-Kammeijer, Manfred Wuhrer
期刊论文
Influence of Survivin-targeted siRNA on the biological features of colorectal carcinoma cells
XIONG Ying, GUO Wen, LI Ting, LI Ke
期刊论文
Absence of FHIT expression is associated with apoptosis inhibition in colorectal cancer
CAO Jie, LI Wanglin, XIA Jie, TANG Weibiao, WANG Hui, CHEN Xiwen, XIAO Huanqing, LI Yuyuan, CHEN Xiaoping, DU Hong, CHEN Shanming
期刊论文
从结直肠癌细胞和组织样本释放的外泌体中检测肿瘤相关抗原自身抗体的多路生物传感诊断平台展示了对结直肠癌的高诊断能力
Ana Montero-Calle, Itziar Aranguren-Abeigon, María Garranzo-Asensio, Carmen Poves, María Jesús Fernández-Aceñero, Javier Martínez-Useros, Rodrigo Sanz, Jana Dziaková, Javier Rodriguez-Cobos, Guillermo Solís-Fernández, Eloy Povedano, Maria Gamella, Rebeca Magnolia Torrente-Rodríguez, Miren Alonso-Navarro, Vivian de los Ríos, J. Ignacio Casal, Gemma Domínguez, Ana Guzman-Aranguez, Alberto Peláez-García, José Manuel Pingarrón, Susana Campuzano, Rodrigo Barderas
期刊论文
Midline2 is overexpressed and a prognostic indicator in human breast cancer and promotes breast cancer
期刊论文
The first year follow-up after colorectal adenoma polypectomy is important: A multiple-center study in
Qin-Yan GAO, Hui-Min CHEN, Jing-Yuan FANG, Jian-Qiu SHENG, Ping ZHENG, Cheng-Gong YU, Bo JIANG,
期刊论文
转移性结直肠癌治疗模式随时间的变化趋势以及其与患者生存期的关系——一项基于智能大数据平台的回顾性队列研究
王梓贤, 姚逸尘, 麦宗炯, 林武豪, 黄酉生, 金颖, 骆卉妍, 张东生, 王风华, 王峰, 陈功, 丁培荣, 元云飞, 李宇红, 黄金华, 潘志忠, 徐瑞华
期刊论文