* Lidamycin inhibits tumor initiating cells of hepatocellular carcinoma Huh7 through GSK3β/β-catenin pathway.
- Recently, tumor initiating cells are considered as the central role of tumorigenicity in hepatocellular carcinoma. Enediyne anticancer antibiotic lidamycin with great potential antitumor activity is currently evaluated in Phase II clinical trials. In this study, we evaluated the effect of lidamycin on tumor initiating cells of hepatocellular carcinoma Huh7 and identified the potential mechanism. Flow cytometry analysis and sorting assay, surface marker assay, sphere formation assay, and aldefluor assay were used to evaluate the effect of lidamycin on Huh7 tumor initiating cells in vitro. To investigate the potential mechanism, the activity of GSK3β/β-catenin pathway was detected by Western blot and T cell factors transcriptional activity assay. Subcutaneous tumor model in nude mice was used to observe in vivo effect of lidamycin on Huh7 cells. Lidamycin decreased the proportion of EpCAM+ cells and the expression of EpCAM protein. Lidamycin inhibited sphere formation of sorted EpCAM+ cells in 7 d, and of parental cells in three serial passages. The population of aldehyde dehydrogenase-positive cells was reduced by lidamycin. In addition, lidamycin restrained tumor volume and incidence in vivo. Lidamycin activated GSK3β, and degraded the activity of β-catenin. Consequently, transcriptional activity of β-catenin/T cell factors was decreased. In brief, these results suggest that lidamycin suppressed Huh7 tumor initiating cells via GSK3β/β-catenin pathway. These findings reveal the potential mechanism of lidamycin on tumor initiating cells and the benefit for further clinical evaluation.
=>模型, 作る, 形に表わす, 模範, モデル, 型, 模型の, 模範となる, かたどる, 手本, モデルをする,
手本となる
Overview of noun model
The noun model has 9 senses (first 7 from tagged texts)
1. (19) model, theoretical account, framework -- (a hypothetical description of a complex entity or
process; "the computer program was based on a model of the circulatory and respiratory systems")
2. (11) model -- (a type of product; "his car was an old model")
3. (6) model, poser -- (a person who poses for a photographer or painter or sculptor; "the president
didn't have time to be a model so the artist worked from photos")
4. (4) model, simulation -- (representation of something (sometimes on a smaller scale))
5. (3) exemplar, example, model, good example -- (something to be imitated; "an exemplar of
success"; "a model of clarity"; "he is the very model of a modern major general")
6. (1) model, role model -- (someone worthy of imitation; "every child needs a role model")
7. (1) model, example -- (a representative form or pattern; "I profited from his example")
8. mannequin, manikin, mannikin, manakin, fashion model, model -- (a woman who wears clothes to
display fashions; "she was too fat to be a mannequin")
9. model, modelling, modeling -- (the act of representing something (usually on a smaller scale))
Overview of verb model
The verb model has 6 senses (first 2 from tagged texts)
1. (1) model, pattern -- (plan or create according to a model or models)
2. (1) model, mold, mould -- (form in clay, wax, etc; "model a head with clay")
3. model, pose, sit, posture -- (assume a posture as for artistic purposes; "We don't know the woman
who posed for Leonardo so often")
4. model -- (display (clothes) as a mannequin; "model the latest fashion")
5. model, simulate -- (create a representation or model of; "The pilots are trained in conditions
simulating high-altitude flights")
6. model, mock up -- (construct a model of; "model an airplane")
Overview of adj model
The adj model has 1 sense (first 1 from tagged texts)
1. (1) exemplary, model -- (worthy of imitation; "exemplary behavior"; "model citizens")
--- WordNet end ---