Figure 3.

Protection of KCs and J774E cells from ricin toxicity by individual anti‐RTA MAbs. Freshly isolated KCs (panels A, C, and E) or J774E cells (panels B, D, and F) were seeded into 96‐well microtiter plates and then treated with ricin plus indicated amount of anti‐RTA MAbs for 18 h. The cells were washed, and cell viability was assessed 24 h later. The MAbs are grouped based on their epitopes clusters on RTA: cluster I (A and B), cluster II (C and D) and Clusters III and IV (E and F). Each data point represents the average (with corresponding standard deviations) of 3 independent experiments