<prompt> Rituximab is a targeted antibody against -CD 20CD 22CD 34CD 55  <response>: Ans. is a i.e., CD 20 Rituximab is a targeted antibody against cell surface molecule CD-20, i.e. Rituximab is anti CD-20 antibody. It is used in:i B-cell lymphomas Low grade lymphomas, mantle cell lymphomas, relapsed aggressive B cell lymphomas, CLLii SLEiii Rheumatoid arthritis 