Correlation between HLA-G levels and composition of immune cell population in ascitic clusters.
A positive correlation coefficient of HLA-G1 + G5 was detected only with CD45+RO (rs = 0.44), CD4+CD25+CD127− (rs = 0.36), and CD4+ (rs = 0.26) subpopulations, whereas a negative coefficient of correlation of HLA-G1 + G5 was detected for CD3−CD56+ (rs = −0.63) subpopulation. We used another antibody (5A6G7) to detect sHLA-G5 in ascites. A strong negative correlation was found for sHLA-G5 with CD8+ (rs = −0.63), CD3−CD56+ (rs = −0.58), and CD4+CD45RO (rs = −0.37), whereas a positive correlation was found with CD4+ (rs = 0.35) and CD4+CD25+CD127− (rs = 0.93).