We wish to retract the manuscript titled “Regulation of Class II Expression in Monocytic Cells after HIV-1 Infection” by Seth Rakoff-Nahoum, Houchu Chen, Thomas Kraus, Italas George, Erwin Oei, Max Tyorkin, Erez Salik, Prarthana Beuria, and Kirk Sperber, The Journal of Immunology, 2001, 167: 2331–2342 . The manuscript contains an error in the presentation of data in one of the figures.

Fig. 10, which demonstrated intracellular trafficking of HLA-DR after the introduction of HIV proteins, contains three panels that are incorrect. We published the corrected figure as errata in the December 15, 2005 issue of The JI. However, given the error made in the figure, we wish to retract the manuscript.

We deeply regret this error and the need to take this action.

Seth Rakoff-Nahoum

Houchu Chen

Thomas Kraus

Italas George

Erwin Oei

Max Tyorkin

Erez Salik

Prarthana Beuria

Kirk Sperber

Mount Sinai School of Medicine

New York, NY 10029