Table 2 |
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|
Expression of HIV-1 receptors and adhesion molecules on donor cells.a |
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| Surface ligands |
Dendritic cellsb |
Raji/ DC-SIGN |
K562/ DC-SIGN |
|
|
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| CD4 |
+ |
- |
- |
| CCR5 |
+ |
- |
- |
| CXCR4 |
+ |
+ |
+ |
| Duffy antigen/receptor for chemokines (DARC) |
ND |
- |
+/- |
| HLA-I (MHC-I) |
++ |
++ |
+ |
| HLA-DR (MHC-II)c |
++ |
++ |
- |
| ICAM-1 (CD54) |
+ |
+ |
+ |
| ICAM-2 (CD102) |
+ |
+ |
+ |
| ICAM-3 (CD50) |
+ |
- |
- |
| LFA-1 (CD11a/CD18) |
+ |
+ |
- |
| LFA-3 (CD58) |
+ |
+ |
+ |
| B7-1 (CD80) |
+ |
+ |
+ |
| B7-2 (CD86) |
+ |
+ |
+ |
|
|
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|
a Proteins expressed on the surface of the donor cells were stained and analyzed by FACS. Isotype-matched mouse IgG controls were also examined. Cell population expression levels indicated as ++, +, and +/- demonstrated a mean fluorescence of antibody staining greater than 50, 10, and 7.5, respectively. No antibody and isotype control stainings typically displayed a mean fluorescence intensity of 5 in the FL-2 channel, using a Becton-Dickinson FACSCalibur instrument. ND, not done. Staining of parental Raji and K562 cells was uniformly negative for DC-SIGN and showed a similar expression pattern of these ligands (data not shown). b Immature monocyte-derived dendritic cells were stained at day 7 of culture in the presence of cytokines [5]. c HLA-DP and -DQ expression was also examined and results were similar to what is shown for HLA-DR. |
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|
Wu et al. Retrovirology 2004 1:14 doi:10.1186/1742-4690-1-14 |
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