Table 1

Immunophenotype of the monocytic cells and tumor-infiltrating CD11b+Gr-1+ cell subpopulations

Antigen presentation
Adhesion molecules
Other
MHC Class IMHC Class IICD80CD86CD11aCD11bCD11cCD29CD43CD62LCD115TNFαScaIF4/80CD24Ly6C
Ly-6Chi “inflammatory” monocytes +++ − ++ ND             
Thioglycollate-elicited macrophages +++ +/− ++ ++            
Tumor-infiltrating CD11b+Gr-1int/dull +++ +/− ++ ++             
Tumor-infiltrating CD11b+ Gr-1hi ++ − −             
Ly-6Chi “inflammatory” monocytes     ++ +++ − +++ +++ +++       
Thioglycollate-elicited macrophages     ++ +++ + or +++ +++ ++       
Tumor-infiltrating CD11b+Gr-1int/dull     +++ +++ +++ ++       
Tumor-infiltrating CD11b+ Gr-1hi     +++ +++ − +++ −       
Ly-6Chi “inflammatory” monocytes           +++ ND ND ++ ND +++ 
Thioglycollate-elicited macrophages           +++ ND ++ ++ 
Tumor-infiltrating CD11b+Gr-1int/dull           +/− ++ or +++ ++ ++ ++ or +++ 
Tumor-infiltrating CD11b+ Gr-1hi           − − − +++ 
Antigen presentation
Adhesion molecules
Other
MHC Class IMHC Class IICD80CD86CD11aCD11bCD11cCD29CD43CD62LCD115TNFαScaIF4/80CD24Ly6C
Ly-6Chi “inflammatory” monocytes +++ − ++ ND             
Thioglycollate-elicited macrophages +++ +/− ++ ++            
Tumor-infiltrating CD11b+Gr-1int/dull +++ +/− ++ ++             
Tumor-infiltrating CD11b+ Gr-1hi ++ − −             
Ly-6Chi “inflammatory” monocytes     ++ +++ − +++ +++ +++       
Thioglycollate-elicited macrophages     ++ +++ + or +++ +++ ++       
Tumor-infiltrating CD11b+Gr-1int/dull     +++ +++ +++ ++       
Tumor-infiltrating CD11b+ Gr-1hi     +++ +++ − +++ −       
Ly-6Chi “inflammatory” monocytes           +++ ND ND ++ ND +++ 
Thioglycollate-elicited macrophages           +++ ND ++ ++ 
Tumor-infiltrating CD11b+Gr-1int/dull           +/− ++ or +++ ++ ++ ++ or +++ 
Tumor-infiltrating CD11b+ Gr-1hi           − − − +++ 

CD11b+Gr-1intLy-6Chi “inflammatory” monocytes were collected from peripheral blood of normal B6 mice. Thioglycollate-elicited macrophages were collected from peritoneal cavity 3 days after i.p. injection of 4% thioglycollate medium. Tumor-infiltrating CD11b+Gr-1int/dull cells and CD11b+Gr-1hi cells were analyzed at 10 days after tumor inoculation. − indicates no expression; +, ++, and +++, increasing amount of expression, +/−, + or ++, and ++ or +++, heterogeneous expression; ND, not determined.