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Page 1
Photoaffinity Labeling and Quantitative Chemical Proteomics Identify LXRβ as the Functional Target of Enhancers of Astrocytic apoE.
Seneviratne U, Huang Z, Am Ende CW, Butler TW, Cleary L, Dresselhaus E, Evrard E, Fisher EL, Green ME, Helal CJ, Humphrey JM, Lanyon LF, Marconi M, Mukherjee P, Sciabola S, Steppan CM, Sylvain EK, Tuttle JB, Verhoest PR, Wager TT, Xie L, Ramaswamy G, Johnson DS, Pettersson M. Seneviratne U, et al. Among authors: helal cj. Cell Chem Biol. 2021 Feb 18;28(2):148-157.e7. doi: 10.1016/j.chembiol.2020.09.002. Epub 2020 Sep 29. Cell Chem Biol. 2021. PMID: 32997975 Free article.
Identification of a brain penetrant PDE9A inhibitor utilizing prospective design and chemical enablement as a rapid lead optimization strategy.
Verhoest PR, Proulx-Lafrance C, Corman M, Chenard L, Helal CJ, Hou X, Kleiman R, Liu S, Marr E, Menniti FS, Schmidt CJ, Vanase-Frawley M, Schmidt AW, Williams RD, Nelson FR, Fonseca KR, Liras S. Verhoest PR, et al. Among authors: helal cj. J Med Chem. 2009 Dec 24;52(24):7946-9. doi: 10.1021/jm9015334. J Med Chem. 2009. PMID: 19919087
Use of structure-based design to discover a potent, selective, in vivo active phosphodiesterase 10A inhibitor lead series for the treatment of schizophrenia.
Helal CJ, Kang Z, Hou X, Pandit J, Chappie TA, Humphrey JM, Marr ES, Fennell KF, Chenard LK, Fox C, Schmidt CJ, Williams RD, Chapin DS, Siuciak J, Lebel L, Menniti F, Cianfrogna J, Fonseca KR, Nelson FR, O'Connor R, MacDougall M, McDowell L, Liras S. Helal CJ, et al. J Med Chem. 2011 Jul 14;54(13):4536-47. doi: 10.1021/jm2001508. Epub 2011 Jun 8. J Med Chem. 2011. PMID: 21650160
Design and discovery of 6-[(3S,4S)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl]-1-(tetrahydro-2H-pyran-4-yl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (PF-04447943), a selective brain penetrant PDE9A inhibitor for the treatment of cognitive disorders.
Verhoest PR, Fonseca KR, Hou X, Proulx-Lafrance C, Corman M, Helal CJ, Claffey MM, Tuttle JB, Coffman KJ, Liu S, Nelson F, Kleiman RJ, Menniti FS, Schmidt CJ, Vanase-Frawley M, Liras S. Verhoest PR, et al. Among authors: helal cj. J Med Chem. 2012 Nov 8;55(21):9045-54. doi: 10.1021/jm3007799. Epub 2012 Jul 25. J Med Chem. 2012. PMID: 22780914
Application of structure-based drug design and parallel chemistry to identify selective, brain penetrant, in vivo active phosphodiesterase 9A inhibitors.
Claffey MM, Helal CJ, Verhoest PR, Kang Z, Fors KS, Jung S, Zhong J, Bundesmann MW, Hou X, Lui S, Kleiman RJ, Vanase-Frawley M, Schmidt AW, Menniti F, Schmidt CJ, Hoffman WE, Hajos M, McDowell L, O'Connor RE, Macdougall-Murphy M, Fonseca KR, Becker SL, Nelson FR, Liras S. Claffey MM, et al. Among authors: helal cj. J Med Chem. 2012 Nov 8;55(21):9055-68. doi: 10.1021/jm3009635. Epub 2012 Oct 12. J Med Chem. 2012. PMID: 23025719
Design and selection parameters to accelerate the discovery of novel central nervous system positron emission tomography (PET) ligands and their application in the development of a novel phosphodiesterase 2A PET ligand.
Zhang L, Villalobos A, Beck EM, Bocan T, Chappie TA, Chen L, Grimwood S, Heck SD, Helal CJ, Hou X, Humphrey JM, Lu J, Skaddan MB, McCarthy TJ, Verhoest PR, Wager TT, Zasadny K. Zhang L, et al. Among authors: helal cj. J Med Chem. 2013 Jun 13;56(11):4568-79. doi: 10.1021/jm400312y. Epub 2013 May 28. J Med Chem. 2013. PMID: 23651455
Application of Structure-Based Design and Parallel Chemistry to Identify a Potent, Selective, and Brain Penetrant Phosphodiesterase 2A Inhibitor.
Helal CJ, Arnold EP, Boyden TL, Chang C, Chappie TA, Fennell KF, Forman MD, Hajos M, Harms JF, Hoffman WE, Humphrey JM, Kang Z, Kleiman RJ, Kormos BL, Lee CW, Lu J, Maklad N, McDowell L, Mente S, O'Connor RE, Pandit J, Piotrowski M, Schmidt AW, Schmidt CJ, Ueno H, Verhoest PR, Yang EX. Helal CJ, et al. J Med Chem. 2017 Jul 13;60(13):5673-5698. doi: 10.1021/acs.jmedchem.7b00397. Epub 2017 Jun 16. J Med Chem. 2017. PMID: 28574706
The Discovery of a Novel Phosphodiesterase (PDE) 4B-Preferring Radioligand for Positron Emission Tomography (PET) Imaging.
Zhang L, Chen L, Beck EM, Chappie TA, Coelho RV, Doran SD, Fan KH, Helal CJ, Humphrey JM, Hughes Z, Kuszpit K, Lachapelle EA, Lazzaro JT, Lee C, Mather RJ, Patel NC, Skaddan MB, Sciabola S, Verhoest PR, Young JM, Zasadny K, Villalobos A. Zhang L, et al. Among authors: helal cj. J Med Chem. 2017 Oct 26;60(20):8538-8551. doi: 10.1021/acs.jmedchem.7b01050. Epub 2017 Oct 9. J Med Chem. 2017. PMID: 28957634
Identification of a Potent, Highly Selective, and Brain Penetrant Phosphodiesterase 2A Inhibitor Clinical Candidate.
Helal CJ, Arnold E, Boyden T, Chang C, Chappie TA, Fisher E, Hajos M, Harms JF, Hoffman WE, Humphrey JM, Pandit J, Kang Z, Kleiman RJ, Kormos BL, Lee CW, Lu J, Maklad N, McDowell L, McGinnis D, O'Connor RE, O'Donnell CJ, Ogden A, Piotrowski M, Schmidt CJ, Seymour PA, Ueno H, Vansell N, Verhoest PR, Yang EX. Helal CJ, et al. J Med Chem. 2018 Feb 8;61(3):1001-1018. doi: 10.1021/acs.jmedchem.7b01466. Epub 2018 Jan 16. J Med Chem. 2018. PMID: 29293004
40 results