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196 results about "Stage melanoma" patented technology

Ursolic acid nitrogen heterocyclic ring structure modifiers with antitumor activity and preparation method for ursolic acid nitrogen heterocyclic ring structure modifiers

InactiveCN102675406AGood antitumor effect in vitroProliferative Inhibitory Effect in VitroOrganic active ingredientsSteroidsCancer cellStage melanoma
The invention relates to the transformation of a chemical structure of a natural medicinal plant, namely ursolic acid, in particular to ursolic acid nitrogen heterocyclic ring structure modifiers with antitumor activity and a preparation method for the ursolic acid nitrogen heterocyclic ring structure modifiers. The ursolic acid nitrogen heterocyclic ring structure modifiers are ursolic acid nitrogen heterocyclic ring derivatives shown as a general formula (I). The preparation method comprises the following steps of: oxidizing or acetylating a C-3 hydroxyl group of the ursolic acid, performing condensation reaction of a C-17 carboxyl group and piperazine or a derivative of the piperazine so as to achieve the structural transformation of the ursolic acid, and thus obtaining a series of ursolic acid nitrogen heterocyclic ring structure modifiers. The in-vitro inhibitory activities of the ursolic acid nitrogen heterocyclic ring structure modifiers on human malignant melanoma A-375 cells, human gastric carcinoma AGS and BGC-823 cells are determined; and methyl thiazolyl tetrazolium (MTT) data show that the modifiers have a certain effect of inhibiting the proliferation of three kinds of cancer cells, and the inhibitory activity of partial compounds is even superior to that of paclitaxel.
Owner:FUZHOU UNIV

Total saponins of psammosilene tunicoids (TSPT) with antitumor activity, and preparation thereof

The invention discloses a new application of the antitumor effect of a Miao ethnomedicine psammosilene tunicoids, and simultaneously discloses a preparation method and preparation of the pharmaceutical part of psammosilene tunicoids with the antitumor activity. The preparation method mainly comprises the steps of: extracting by ethanol, concentrating, extracting by n-butyl alcohol, purifying by macroporous absorption resin, and the like to obtain the total saponins of psammosilene tunicoids (TSPT). The total saponins are used as raw materials to prepare clinical commonly used pharmaceutical preparations such as tablets, capsules, injections and the like. A method of pharmacodynamic evaluation both in vivo and in vitro is adopted, wherein shown by in vitro tests, the TSPT has stronger inhibitory actions on 6 tumor cells of stomach cancer, liver cancer, colon cancer, ovarian cancer, breast cancer and melanoma, but has unobvious inhibition on the normal splenic lymphocyte; shown by integral animal in vivo experimental results, the TSPT has an inhibition rate as high as 72% on S180 solid tumors and has high action valence, but has small influence on the body weight of mice; and compared with a positive drug cis-platinum, the TSPT has lower side effect. Shown by the experimental results, the TSPT has strong anticancer valence, low side effect and the advantage of original innovation.
Owner:王学勇

Culture method of high-memory phenotype tumor-infiltrating T lymphocytes

The invention discloses a culture method of high-memory phenotype tumor-infiltrating T lymphocytes. The culture method comprises the following steps of aseptically cutting tumor tissues and putting the tumor tissues into a culture solution, mechanically cutting and digesting tumor bodies under an aseptic cold chain condition to obtain a single-cell suspension, separating and extracting the tumor-infiltrating T lymphocytes, and obtaining the high-memory phenotype tumor-infiltrating T lymphocytes by adding the tumor-infiltrating T lymphocytes into a culture medium containing a separation induction culture solution for in-vitro amplification and induced differentiation, and culturing for 7-21 days, wherein the separation induction culture solution is a culture medium containing IL-2, IL-7 and IL-15 with the concentrations of 10ng/ml, 10ng/ml and 20ng/ml respectively. According to the method, the TIL cells are subjected to in-vitro amplification and induced differentiation by separating and inducing the culture solution, the high-memory phenotype TILs with efficient proliferation activity and strong tumor killing ability are obtained to the maximum extent, the method is simple and efficient, the proportion of the memory phenotype T lymphocytes is high, and the TILs can be used for treating advanced malignant melanoma.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV
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