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harringtonine/злаякасная пухліна

Спасылка захоўваецца ў буферы абмену
АртыкулыКлінічныя выпрабаванніПатэнты
Старонка 1 ад 19 вынікі

Comparative in vitro antitumor activity of homoharringtonine and harringtonine against clonogenic human tumor cells.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Harringtonine and its derivative homoharringtonine are ester-containing anti-leukemic alkaloids isolated from the tree Cephalotaxus harringtonia. In order to compare their antitumor activity against solid tumors, in vitro culture of fresh tumor cells from 23 patients was carried out with a soft agar

Antagonistic interactions of hexamethylene bisacetamide in combination with 1-beta-D-arabinofuranosylcytosine, adriamycin and harringtonine on the growth and differentiation of HL-60 cells in vitro.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Selective killing of cancer cells by cytotoxic agents and the conversion of cancerous cells to normal state by differentiation agents represent two basically different approaches in chemotherapy. In this study, we examined the combination of the cell differentiation inducer, hexamethylene

[Two-dimensional polyacrylamide gel electrophoresis analysis of apoptosis in K562 cells induced by harringtonine].

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
OBJECTIVE Harringtonine (HT),an anti-tumor drug,has been widely used to treat acute or chronic myeloid leukemia,and obtained satisfactory effects. Studies showed that the anti-tumor activity of HT is related with the apoptosis-inducing effect,but the molecular mechanisms remain unclear. This study

[Apoptosis resistance and its reversal in harringtonine resistant cell line].

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Harringtonine (HT), a domestic antitumor drug extracted from Cephalotaxus hainanensis Li showed high chemotherapeutic efficacy on human acute granulocytic leukemia and acute myelocytic leukemia in clinics. Apoptosis of HL-60 cells can be induced by HT effectively; but for cells resistant to

[Induction of apoptosis by harringtonine and homoharringtonine in HL-60 cells].

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Harringtonine (HT) and homoharringtonine (HHT) are two alkaloids isolated from the bark of the evergreen tree Cephalotaxus hainanensis Li in the 1970s. They were found to have activity against murine leukemia, Lewis lung carcinoma and B16 melanoma, and used as anti-leukemia drugs clinically.

Preliminary-study of the effect of selected chinese natural drugs on human ovarian-cancer cells.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
This study investigated the in vitro anti-cancer effects of four Chinese natural drugs on the human ovarian cancer cell lines A2780 (cisplatin-sensitive) and A2780/CP70 (cisplatin-resistant). Cells were treated with series of concentrations of drug preparations for 24 h. Vincristine prepared by the

Reduction of doxorubicin resistance by tetrandrine and dauricine in harringtonine-resistant human leukemia (HL60) cells.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
OBJECTIVE To study whether tetrandrine (Tet) and dauricine (Dau) can reduce doxorubicin (Dox) resistance in the harringtonine (Har)-resistant human leukemia cells. METHODS The drug cytotoxities were determined by counting cell numbers and colony formation. Cell cycle phases were assayed by flow

Inhibitions of several antineoplastic drugs on serum sialic Acid levels in mice bearing tumors.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Six murine tumors, including ascetic tumors HepA, EC, P388 leukemia, S180 and solid tumor S180, and Lewis lung carcinoma, were employed in this work. The free sialic acid concentrations in both blood and ascites were measured in tumor-bearing mice. The results showed that the content of sialic acids

Antisense expression of protein kinase C alpha improved sensitivity to anticancer drugs in human lung cancer LTEPa-2 cells.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
OBJECTIVE To study the role of protein kinase C alpha (PKC alpha) in sensitivity to some clinical anticancer drugs in human lung cancer LTEPa-2 cells. METHODS Human lung cancer cell model expressing antisense PKC alpha was established and characterized by gene transfection and immunoblotting.

Leukemic cell differentiation in vivo and in vitro: arrest of proliferation parallels the differentiation induced by the antileukemic drug Harringtonine.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
A variety of chemical agents have been shown to induce differentiation in in vitro cultured neoplastic cell lines. We noted that blast cells in the peripheral blood of acute nonlymphoid leukemia patients treated with the drug Harringtonine appeared to undergo morphological changes that suggested

Antitumor activities of harringtonine and homoharringtonine, cephalotaxus alkaloids which are active principles from plant by intraperitoneal and oral administration.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Antitumor activities of harringtonine(HA) and homoharringtonine(HO) both belong to cephalotaxus alkaloids were compared with those of vinca alkaloids, vincristine (VCR) and vinblastine (VLB). HA and HO had significant activities against P388 leukemia, L1210 leukemia and B16 melanoma by

[Inhibitory effects of several antitumor drugs on the growth of HL-60 cells in SRC of mice].

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Human promyelocytic leukemia HL-60 cells provide a useful model system for the study of cell differentiation in vitro. Here the growth of HL-60 cells as a solid clot with fibrin in subrenal capsules (SRC) of mice was studied. The cell volume of HL-60 cells increased 5 and 15-fold between 6-9 days

Two new pregnanone derivatives with strong cytotoxic activity from Pachysandra axillaris.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Two new, bioactive, pregnane-based natural products, pachysanonin (= 3beta,11alpha,12beta)-12-acetoxy-3-(dimethylamino)-11-[(3,4-dimethylpent-3-enoyl)oxy]pregnan-20-one; 1) and pachysanone (= (11alpha,12beta)-12-acetoxy-11-[(3,4-dimethylpent-3-enoyl)oxy]pregnan-3,20-dion; 2) have been isolated from

Comparison of some antineoplastic drugs on inhibiting thrombin catalizing fibrinogen clotting in vitro.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
OBJECTIVE To classify the effect of thrombin, the key enzyme which enables fibrinogen to form fibrin (fibrinogen clotting) on the formation of metastasis by comparing the inhibition of some antineoplastic drugs on fibrinogen clotting in vitro. METHODS Time intervals of different drugs to reach a

Synthesis of cephalotaxine esters and correlation of their structures with antitumor activity.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Twenty-two new esters of natural (-)-cephalotaxine with synthetic acids possessing widely divergent structural features have been synthesized. Murinichloroethyl carbonate (27) esters of cephalotaxine are the most active of this group; this activity is less than that of harringtonine and other
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