Our results indicated that the IC50s for native-length Mabs 1 and 3 were essentially the same as the parental Fabs by cellular assay (Table 3).
Cells were incubated with glycoprotein-specific mAbs (1 h, 4°C), washed×2 in PBS, incubated with fluorescein-conjugated rabbit anti-mouse IgG pAb (Dako Cytomation, Ely, U.K ., washed×2, and analysed on a FACS Calibur (BD Biosciences, Oxford, U.K).
Then, the cells were collected, suspended in PBS supplemented with 1% BSA and incubated with 10 µg/ml of : anti-human CD44 (A3D8), CD40 (5C3), ICAM (HA58), TNFR1 (MAB), VCAM mAbs; 1 µg/mL of FasL NOK-1 mAb, or 500 ng/mL of Fas DX2 mAb (BD Biosciences Pharmingen) for 1 h at 4°C.
For specific staining, cells were incubated with MHV-68 glycoprotein-specific mAbs (1 h, 4°C), washed ×2 in PBS, incubated with fluorescein-conjugated rabbit anti-mouse IgG pAb (Dako Cytomation, Ely, U.K ., washed ×2, and analysed on a FACS Calibur (Becton-Dickinson, Oxford, U.K .. Graphs were plotted with FCSPress v1.3 (www.fcspress.com).
To examine the effect of stimulation on the rate of H-Ras acquisition by T cells, the CD3+-enriched T cell cultures were activated by plate-bound anti-CD3 mAbs (2 µg/ml) and soluble anti-CD28 mAbs (1 µg/ml; BD Biosciences), and cultured for additional 3 days in a medium supplemented with 100 IU of rhIL-2.
For specific staining, cells were incubated with MHV-68 glycoprotein-specific mAbs (1 h, 4°C), washed×2 in PBS, incubated with fluorescein-conjugated rabbit anti-mouse IgG pAb (Dako Cytomation, Ely, U.K ., washed×2, and analysed on a FACS Calibur (Becton-Dickinson, Oxford, U.K .. We used the following mAbs.
Treatment of solid tumours that are generally more radioresistant has been less successful due to several factors including long serum persistence, poor tumour penetration and slow diffusion rates of mAbs [1].
These include (designated as ganglioside specificity-IgG subclass) two anti-GM1 mAbs (GM1-1, GM1-2b), three anti-GD1a mAbs (GD1a-1, GD1a-2b, GD1anti-GD1be anti-GD1b mAb (GD1b-1), and three anti-GT1b mAbs (GT1b-1, GT1b-2b, GT1b-2b).
In neutralization assays, non-neutralizing 240C disrupted virus neutralization by mAb 341C and/or mAb 540C, whereas a combination of mAbs 341C and 540C blocked virus infectivity synergistically.
MAbs T2B11 and T3B8 are shown as examples.
MAb 11A8 (referred to as 426 MAb) was obtained from 426 441 MCP immunized mice, while MAbs 2D3 (referred to as 419 MAb) and 4C2 were obtained from 419 439 MCP immunized mice.
