I wish to retract the article “Phospholipase D1 Plays a Key Role in TNF-α Signaling” by Swaminathan Sethu, Grecia Mendez-Corao, and Alirio J. Melendez, The Journal of Immunology, 2008, 180: 6027–6034.

An investigation by the National University of Singapore concluded that in Fig. 1C, three cells in the 5 and 10 min points appear identical, but rearranged in location. The investigation also concluded that the cells in the 2, 5, and 10 min time points in Fig. 6B were identical to the 5, 15, and 30 min time points in Fig. 1A in Pushparaj et al. (The Journal of Immunology, 2009, 183: 221–227), which has been retracted.

The Investigative Committee of the National University of Singapore concluded that Dr. Melendez committed serious scientific misconduct. The committee found no evidence indicating that the coauthors were involved in the scientific misconduct.