Table 2. Antibodies used in the study.

Antibody	Specificity	Ab dilutionfor IH‡	µg of Ab/samplefor IP§	Ab dilutionfor WB∥	Reference
mAb* MCA1269	Human soluble CD100	1∶50	2 µg	1∶1000	AbD Serotec, Oxford, UK
mAb 610670	Human membrane-bound CD100	1∶5	/	1. 500	BD Transduction Laboratories™, Milan, Italy
mAb MCA2501	Human CD72	1∶25	2 µg	1∶1000	AbD Serotec, Oxford, UK
Rabbit pAb† ab10558	Human CD45	1∶10	/	1∶500	Abcam, Cambridge, UK
mAb A5316	Human β-actin	/	/	1∶5000	Sigma-Aldrich, Milan, Italy
mAb M 0814	Human CD68	1∶80	/	/	DAKO Cytomation, Glostrup, Denmark

^*mAb, monoclonal antibody; ^†pAb, polyclonal antibody; ^‡IH, immunohistochemistry; ^§IP, immunoprecipitation; ^∥WB, western blotting.