Comment on

• Suppression of N-methyl-N-nitrosourea/testosterone-induced rat prostate cancer growth by celecoxib: effects on cyclooxygenase-2, cell cycle regulation, and apoptosis mechanism(s).

  Narayanan BA, Condon MS, Bosland MC, Narayanan NK, Reddy BS. Narayanan BA, et al. Clin Cancer Res. 2003 Aug 15;9(9):3503-13. Clin Cancer Res. 2003. Retraction in: Clin Cancer Res. 2016 Jan 1;22(1):270. doi: 10.1158/1078-0432.CCR-15-2811. PMID: 12960143 Retracted.
• Epidermal growth factor-stimulated human cervical cancer cell growth is associated with EGFR and cyclin D1 activation, independent of COX-2 expression levels.

  Narayanan R, Kim HN, Narayanan NK, Nargi D, Narayanan B. Narayanan R, et al. Int J Oncol. 2012 Jan;40(1):13-20. doi: 10.3892/ijo.2011.1211. Epub 2011 Sep 22. Int J Oncol. 2012. Retraction in: Int J Oncol. 2017 Jan;50(1):337. doi: 10.3892/ijo.2016.3737. PMID: 21946890 Retracted.
• Modulation of PGE2-induced EP4 expression on snail signaling and the impact on epithelial-mesenchymal transition: significance of EP4 antagonism.

  Kim HN, Narayanan NK, Lasano S, Narayanan B. Kim HN, et al. Anticancer Res. 2011 Dec;31(12):4347-57. Anticancer Res. 2011. Retraction in: Anticancer Res. 2018 Jun;38(6):3785. PMID: 22199300 Retracted.