Chemotaxis of RMS cells across transwell membranes covered with fibronectin (black bars) or laminin (dashed bars).

(A) RH30, (B) RH28, (C) CW9019, (D) SMS-CTR, and (E) RD cells. Left part of each panel shows chemotaxis to control medium (no SDF-1β in upper (−) and lower (−) chambers; middle part of each panel, chemotaxis to SDF-1β present (+) in lower chamber; right part of each panel, chemotaxis in the presence of SDF-1 in both upper (+) and lower (+) chambers. Data from 5 separate experiments are pooled together.