Figure 2.
Time and dose curve of GAG-dependent complement deposition on platelets. (A) Platelets were incubated for 5–90 min with serum as complement source in the presence of either medium, 20% supernatant (SN) of AF293, or 20% SN of Δuge3. (B) Platelets were incubated for 90 min with serum as complement source in the presence of 2–50% SN of AF293 or Δuge3. GAG deposition and opsonization were evaluated by flow cytometry. Each experiment was repeated at least three times with different platelet donors and with triplicate samples. Results are analyzed in comparison with the medium sample, which was set to 100%. ***p < 0.005, **p < 0.01, *p < 0.05.