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NES1/KLK10 and hNIS gene therapy enhanced iodine-131 internal radiation in PC3 proliferation
Jiajia Hu, Wenbin Shen, Qian Qu, Xiaochun Fei, Ying Miao, Xinyun Huang, Jiajun Liu, Yingli Wu, Biao Li
《医学前沿(英文)》 2019年 第13卷 第6期 页码 646-657 doi: 10.1007/s11684-018-0643-y
关键词: androgen-independent prostate cancer normal epithelial cell-specific 1/kallikrein 10 sodium/iodide symporter radiation therapy proliferation
Genomic variations in the counterpart normal controls of lung squamous cell carcinomas
null
《医学前沿(英文)》 2018年 第12卷 第3期 页码 280-288 doi: 10.1007/s11684-017-0580-1
Lung squamous cell carcinoma (LUSC) causes approximately 400 000 deaths each year worldwide. The occurrence of LUSC is attributed to exposure to cigarette smoke, which induces the development of numerous genomic abnormalities. However, few studies have investigated the genomic variations that occur only in normal tissues that have been similarly exposed to tobacco smoke as tumor tissues. In this study, we sequenced the whole genomes of three normal lung tissue samples and their paired adjacent squamous cell carcinomas. We then called genomic variations specific to the normal lung tissues through filtering the genomic sequence of the normal lung tissues against that of the paired tumors, the reference human genome, the dbSNP138 common germline variants, and the variations derived from sequencing artifacts. To expand these observations, the whole exome sequences of 478 counterpart normal controls (CNCs) and paired LUSCs of The Cancer Genome Atlas (TCGA) dataset were analyzed. Sixteen genomic variations were called in the three normal lung tissues. These variations were confirmed by Sanger capillary sequencing. A mean of 0.5661 exonic variations/Mb and 7.7887 altered genes per sample were identified in the CNC genome sequences of TCGA. In these CNCs, C:G→T:A transitions, which are the genomic signatures of tobacco carcinogen N-methyl-N-nitro-N-nitrosoguanidine, were the predominant nucleotide changes. Twenty five genes in CNCs had a variation rate that exceeded 2%, including ARSD (18.62%), MUC4 (8.79%), and RBMX (7.11%). CNC variations in CTAGE5 and USP17L7 were associated with the poor prognosis of patients with LUSC. Our results uncovered previously unreported genomic variations in CNCs, rather than LUSCs, that may be involved in the development of LUSC.
关键词: lung cancer counterpart normal control genomic variations
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
Effect of IL-10 on formation of foam cell induced by ox-LDL
WANG Fei, DAI Yalei, XU Ting, XU Bo, WANG Kaifeng
《医学前沿(英文)》 2008年 第2卷 第3期 页码 298-302 doi: 10.1007/s11684-008-0057-3
关键词: inflammatory presence interleukin-10 dose-dependent ox-LDL
Intestinal Epithelial Axin1 Deficiency Protects Against Colitis via Altered Gut Microbiota
Shari Garrett,Yongguo Zhang,Yinglin Xia,Jun Sun,
《工程(英文)》 doi: 10.1016/j.eng.2023.06.007
关键词: Axin1 Bacteria Microbiome inflammation Inflammatory bowel disease Immunity Microbiome Paneth cells Akkermansia muciniphila Wnt
《医学前沿(英文)》 2022年 第16卷 第4期 页码 596-609 doi: 10.1007/s11684-021-0868-z
关键词: innate immune checkpoint Siglec10 kidney renal clear cell carcinoma
基于表位定向细胞库筛选高亲和力PD-1突变体诱骗分子 Article
刘昊, 乔春霞, 胡乃静, 王志宏, 王晶, 冯健男, 沈倍奋, 马远方, 罗龙龙
《工程(英文)》 2021年 第7卷 第11期 页码 1557-1565 doi: 10.1016/j.eng.2020.11.011
抗程序性细胞死亡蛋白-1(programmed cell death protein-1,PD-1)/程序性细胞死亡配体-1(programmed cell death ligand-1, PD-L1)单克隆抗体的免疫疗法已成为治疗肺癌、肠癌和黑色素瘤等多种癌症的常规方法。PD-1/PD-L1信号通路在肿瘤微环境中可抑制T细胞活化,使其成为一个热门的抗癌靶点。野生型(wild type, WT)PD-1胞外结构域由于亲和力低而难以阻断PD-1/PD-L1复合物的形成。在MC38转基因小鼠模型中,463可有效逆转PD-1对T细胞活化的抑制作用,而且10 mg·kg−1的463突变体蛋白对肿瘤生长的抑制率约为75%,与同等剂量下更有趣的是,低剂量的463(2 mg·kg−1)显示出比10 mg·kg−1的野生型PD-1更好的抑瘤效果
Lihui WANG, Lianhong LI, Shen LV, Shujun FAN, Li ZHAN, Bo WANG, Zhong ZHANG
《医学前沿(英文)》 2009年 第3卷 第2期 页码 164-170 doi: 10.1007/s11684-009-0038-1
关键词: epithelial-mesenchymal transition vascular endothelial cell growth factor matrix metalloproteinase-9 cyclooxygenase-2 higher microvascular density breast cancer
以“功能”储备补足“资源”储备——甲醇战略储备替代1/10~1/5的石油战略储备
金涌,陈丙珍
《中国工程科学》 2008年 第10卷 第11期 页码 4-6
侯明,邵志刚,衣宝廉
《中国工程科学》 2019年 第21卷 第3期 页码 84-91 doi: 10.15302/J-SSCAE-2019.03.002
燃料电池车作为新能源汽车的一种,以其续驶里程长、动力性能高、燃料加注快、兼容可再生能源等特点,得到愈来愈广泛的重视。燃料电池堆是燃料电池汽车的核心,其比功率是反应燃料电池堆技术水平的重要指标,掌握高比功率燃料电池电堆技术可以降低电堆硬件数量,从而也会使电堆成本得到大幅降低。国际上先进的燃料电池堆由于具有高的比功率使其在车辆有限空间能提供较大功率,满足了车辆动力需求;然而,国内目前电堆比功率相比国际先进水平还有一定差距,针对这一问题,本文从高活性催化剂、增强复合质子交换膜、高扰动流场、导电耐腐蚀薄金属双极板、电堆组装与一致性等多方面,探讨了提高燃料电池电堆比功率的技术途径,基于理论与实践积累分析了燃料电池活化极化、欧姆极化及传质极化与材料、部件、组装的关联性,为进一步提高燃料电池堆性能与比功率提供方向性参考。
Application of StrucGP in medical immunology: site-specific -glycoproteomic analysis of macrophages
《医学前沿(英文)》 2023年 第17卷 第2期 页码 304-316 doi: 10.1007/s11684-022-0964-8
关键词: macrophage glycoproteome glycopeptides N-glycan structures PD-L1
null
《医学前沿(英文)》 2017年 第11卷 第3期 页码 410-422 doi: 10.1007/s11684-017-0527-6
Aberrant expression of annexin A2-S100A10 heterotetramer (AIIt) associated with PML/RARα fusion protein causes lethal hyperfibrinolysis in acute promyelocytic leukemia (APL), but the mechanism is unclear. To facilitate the investigation of regulatory association between ANXA2 and promyelocytic leukemia/retinoic acid receptor a (PML/RARα) fusion protein, this work was performed to determine the transcription start site of ANXA2 promoter with rapid amplification of 5′-cDNA ends analysis. Zinc-induced U937/PR9 cells expressed PML/RARα fusion protein, and resultant increases in ANXA2 transcripts and translational expressions of both ANXA2 and S100A10, while S100A10 transcripts remained constitutive. The transactivation of ANXA2 promoter by PML/RARα fusion protein was 3.29±0.13 fold higher than that by control pSG5 vector or wild-type RARα. The overexpression of ANXA2 in U937 transfected with full-length ANXA2 cDNA was associated with increased S100A10 subunit, although S100A10 transcripts remained constitutive. The tPA-dependent initial rate of plasmin generation (IRPG) in zinc-treated U937/PR9 increased by 2.13-fold, and cell invasiveness increased by 27.6%. Antibodies against ANXA2, S100A10, or combination of both all remarkably inhibited the IRPG and invasiveness in U937/PR9 and NB4. Treatment of zinc-induced U937/PR9 or circulating APL blasts with all-trans retinoic acid (ATRA) significantly reduced cell surface ANXA2 and S100A10 and associated reductions in IRPG and invasiveness. Thus, PML/RARα fusion protein transactivated the ANXA2 promoter to upregulate ANXA2 and accumulate S100A10. Increased AIIt promoted IRPG and invasiveness, both of which were partly abolished by antibodies against ANXA2 and S100A10 or by ATRA.
关键词: annexin A2-S100A10 heterotetramer PML/RARα fusion protein plasmin cell invasion acute promyelocytic leukemia
Comparison of human nasal epithelial cells grown as explant outgrowth cultures or dissociated tissue
null
《医学前沿(英文)》 2013年 第7卷 第4期 页码 486-491 doi: 10.1007/s11684-013-0287-x
The purpose of this study was to compare cell growth characteristics, ciliated cell differentiation, and function of human nasal epithelial cells established as explant outgrowth cultures or dissociated tissue cultures. Human nasal mucosa of the uncinate process was obtained by endoscopy and epithelial cell cultures were established by explant outgrowth or dissociated tissue culture methods. Epithelial cell growth characteristics were observed by inverted phase contrast microscopy. Ciliated cell differentiation was detected by β-tubulin IV and ZO-1 immunocytochemistry. Basal and ATP-stimulated ciliary beat frequency (CBF) was measured using a high-speed digital microscopic imaging system. Both the explant and dissociated tissue cultures established as monolayers with tight junctions and differentiated cell composition, with both types of cultures comprising ciliated and non-ciliated epithelial cells. Fibroblasts were also frequently found in explant cultures but rarely seen in dissociated tissue cultures. In both culture systems, the highest ciliated cell density appeared at 7th–10th culture day and declined with time, with the lifespan of ciliated cells ranging from 14 to 21 days. Overall, 10% of the cells in explant cultures and 20% of the cells in the dissociated tissue cultures were ciliated. These two cultures demonstrated similar ciliary beat frequency values at baseline (7.78±1.99 Hz and 7.91±2.52 Hz, respectively) and reacted equivalently following stimulation with 100 μM ATP. The results of this study indicate that both the explant outgrowth and dissociated tissue culture techniques are suitable for growing well-differentiated nasal ciliated and non-ciliated cells, which have growth characteristics and ciliary activity similar to those of nasal epithelial cells in vivo.
关键词: ciliated cells ciliary beat frequency dissociated tissue culture explant culture nasal epithelial cells
Changlin Cao, Jingxian Gu, Jingyao Zhang
《医学前沿(英文)》 2017年 第11卷 第2期 页码 169-177 doi: 10.1007/s11684-017-0505-z
关键词: soluble triggering receptor expressed on myeloid cells-1 infectious diseases diagnosis and prognosis biomarker
null
《医学前沿(英文)》 2013年 第7卷 第4期 页码 462-476 doi: 10.1007/s11684-013-0270-6
Evaluating the effects of novel drugs on appropriate tumor models has become crucial for developing more effective therapies that target highly tumorigenic and drug-resistant cancer stem cell (CSC) populations. In this study, we demonstrate that a subset of cancer cells with CSC properties may be enriched into tumor spheroids under stem cell conditions from a non-small cell lung cancer cell line. Treating these CSC-like cells with gemcitabine alone and a combination of gemcitabine and the novel CHK1 inhibitor PF-00477736 revealed that PF-00477736 enhances the anti-proliferative effect of gemcitabine against both the parental and the CSC-like cell populations. However, the CSC-like cells exhibited resistance to gemcitabine-induced apoptosis. Collectively, the spheroid-forming CSC-like cells may serve as a model system for understanding the mechanism underlying the drug resistance of CSCs and for guiding the development of better therapies that can inhibit tumor growth and eradicate CSCs.
关键词: drug resistance cancer stem cell checkpoint kinase 1 (CHK1) PF-00477736 lung cancer tumorigenicity
标题 作者 时间 类型 操作
NES1/KLK10 and hNIS gene therapy enhanced iodine-131 internal radiation in PC3 proliferation
Jiajia Hu, Wenbin Shen, Qian Qu, Xiaochun Fei, Ying Miao, Xinyun Huang, Jiajun Liu, Yingli Wu, Biao Li
期刊论文
Epithelial-to-mesenchymal transition in cancer: complexity and opportunities
Yun Zhang, Robert A. Weinberg
期刊论文
Effect of IL-10 on formation of foam cell induced by ox-LDL
WANG Fei, DAI Yalei, XU Ting, XU Bo, WANG Kaifeng
期刊论文
Intestinal Epithelial Axin1 Deficiency Protects Against Colitis via Altered Gut Microbiota
Shari Garrett,Yongguo Zhang,Yinglin Xia,Jun Sun,
期刊论文
Innate immune checkpoint Siglec10 in cancers: mining of comprehensive omics data and validation in patient
期刊论文
Lymphatic metastasis is related to the epithelial-mesenchymal transition and expressions of VEGF, MMP
Lihui WANG, Lianhong LI, Shen LV, Shujun FAN, Li ZHAN, Bo WANG, Zhong ZHANG
期刊论文
Application of StrucGP in medical immunology: site-specific -glycoproteomic analysis of macrophages
期刊论文
Annexin A2-S100A10 heterotetramer is upregulated by PML/RARα fusion protein and promotes plasminogen-dependent
null
期刊论文
Comparison of human nasal epithelial cells grown as explant outgrowth cultures or dissociated tissue
null
期刊论文
Soluble triggering receptor expressed on myeloid cell-1 (sTREM-1): a potential biomarker for the diagnosis
Changlin Cao, Jingxian Gu, Jingyao Zhang
期刊论文