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cainiaodui新蟲 (小有名氣)
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[求助]
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An anti-DLL4 antibody, OMP-21M18, was found to have anti-tumor activity in patient-derived xenograft models independent of any effect on angiogenesis . This antibody does not cross-react with murine DLL4 and therefore has no effect on the vasculature in murine xenografts. The combination of blocking DLL4 in tumor and vascular cells was shown to have an additive effect. Importantly, inhibition of DLL4 not only reduced tumor growth but also reduced tumor initiating cells as shown by serial transplantation experiments |
金蟲 (正式寫手)
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研究發(fā)現(xiàn),抗DLL4的抗體,即OMP-21M18在不受血管生成影響的患者來源異種移植模型中有抗腫瘤活性。 這個(gè)抗體與小鼠DLL4不發(fā)生交叉反應(yīng),所以在做小鼠異種移植時(shí)對(duì)脈管沒有影響。在同時(shí)阻斷腫瘤中的DLL4和血管內(nèi)皮細(xì)胞時(shí)會(huì)有附加反應(yīng)。更重要的是,DLL4的抑制不但會(huì)減緩腫瘤的生長,也會(huì)減慢系列移植實(shí)驗(yàn)中提到的腫瘤啟動(dòng)細(xì)胞。 |

鐵桿木蟲 (著名寫手)
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一種名為OMP-21M18的抗DLL4抗體被發(fā)現(xiàn)在患者來源的異種移植模型中具有抗腫瘤活性,這種活性與該抗體對(duì)對(duì)血管生成的任何影響無關(guān)。 該抗體與鼠源DLL4沒有交叉反應(yīng),因此,對(duì)小鼠異種移植物的血管沒有影響。在腫瘤和血管細(xì)胞中聯(lián)合阻斷DLL4顯示出疊加效應(yīng)。更重要的是,在一系列的移植實(shí)驗(yàn)中,抑制DLL4不僅降低了腫瘤的生長,還減少了腫瘤起始細(xì)胞數(shù)。 |
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